JPH1029493A - Gas generator for air bag and airbag device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of production as well as to facilitate the production too by forming both diffuser and closure shells of a gas generator for air bag use including a coolant filter with a specific numerical range of pressure loss at the specific numerical value of flow rate in a room temperature, by means of metal forming machinery such as a press. SOLUTION: A coolant-filter 5 having a pressure loss of 0.3×10<-2> to 1.5×10<-2> kg/cm<2> at flow rate 100l/min/cm<2> in a room temperature and accomplishing the cooling combustion gas and the collection of combustion remnants, partitions off a combustion chamber 22 for a gas generating means in and around a central cylinder material 4 together with a housing 3. Both diffuser and closure shells 1 and 2 constituting this housing 3 are formed with a stainless steel plate through a press. The diffuser shell 1 is provided with a recess part 9 pinching a transfer charge vessel 10 together with an igniter 18, while the closure shell 2 makes an end face 34 at one end side of the central cylinder member 4 being set up concentrically with a center hole 12 to be possessed in the central part, come into contact with an inner surface 35 of the closure shell 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
Driver and crew protection, including protection against side collisions.
Gas generator for airbags to enhance protection
The present invention relates to an airbag device to be used. [0002] 2. Description of the Related Art Conventional gas generators for airbags are relatively
Complex structure, eg, integrally formed and / or welded
The internal ignition chamber, combustion chamber and filter
It has a structure like a cast housing that defines a chamber. Further
Formed with a coolant structure, such as a heat conductive material
Filters are often generated inside these gas generating structures.
As described above to withstand the temperature and pressure generated
Requires structural complexity. Many such conventional gas generators are
Azide compounds such as those based on sodium iodide
Use gas generating agents as components, but these are relatively high
Has burning rate and undesirable toxicity level, mist and ash
With the combustion products of the minute. Accordingly, in the prior art, a simpler
There is a need for gas generator structures, for example, metal
Coolant / fill made from sheet and partially improved
It has an internal chamber formed by a ruta structure,
Adjustable gas production volume, internal pressure and internal temperature
Gas generator for airbags using non-azide gas generating agent
Increase efficiency while reducing size and price,
To reduce the amount of undesirable combustion products such as mist and ash
What has been reduced has been desired. Gas generating materials based on azide compounds
(For example, NaN_Three/ CuO) is 70kg / cm^TwoAbout 45 under pressure
It has a relatively high linear burn rate of 5050 mm / sec. Horse mackerel
Compound-based gas generating materials provide this relatively high linear flammability.
Relatively large with excellent shape retention performance due to firing speed
Even in the form of pellets or disc-shaped pieces, for example for the driver's seat
When used in airbag gas generators, 40-60
The required characteristic of a complete burning time of millisecond can be satisfied. [0006] Non-azide gas generating materials have a negative impact on the environment.
Developed by being excellent in terms of sound and occupant safety
Came. However, such materials are generally less than 30 mm / sec.
Has a low linear burning rate. If the linear burning speed is about 20mm /
Seconds and the gas generating material is pellets or 2mm in diameter 2mm
Assuming that it is manufactured in the form of a thick disk, the burning rate is
About 100 mm / sec, which is 40 to 60 ms
Can not satisfy the burning time. Get the desired burn time
When the linear burning speed is about 20 mm / sec,
The diameter of the cut or the thickness of the disc should be about 1 mm
You. When linear burning speed is less than 10mm / sec, gas is generated
Material discs must have a thickness of 0.5mm or less
You. Therefore, it is industrially stable and resistant to long-term vehicle vibration.
Manufacture gas generating material in pellet or disk shape
It is practically impossible to do. Therefore desirable requirements
To provide a gas generator for airbags
It was difficult. [0007] As an example of a conventional gas generator for an air bag,
U.S. Pat.No. 4,547,342 to Adams et al.
There are those disclosed in the issue. This is shown in FIG. House
The closing 40 is composed of a diffuser shell 41 and a closure shell.
Well 42. Diffuser shell 41 is forged
Three concentric cylinders 4 formed from
3, 44, and 45. Also, closure shell
42 is formed by forging in the same manner as the diffuser shell 41
And has three concentric welds 50, 51, 52
ing. Diffuser shell 41 and closure shell 4
2 is friction welding at these welded portions 50, 51, 52
It is joined by. Thus, in the prior art,
It is a good idea to forge all the outer shell containers of the heat generator.
Was common. [0008] In the gas generator, the cylinder 4
3, the combustion chamber 53 is formed by the cylinder 44 and the combustion chamber 53 is formed by the cylinder 44.
54 and the cylinder 45 for the coolant / filter chamber
55 are defined respectively. In the ignition means storage chamber 53
Is provided with an ignition means comprising an igniter 56 and a transfer charge 47.
The combustion chamber 54 is ignited by ignition means to generate gas.
Pelletized gas generating agent 57 to be formed and surrounding it
First cooler for cooling combustion gas and collecting combustion residues
And a coolant / filter 58 is provided.
The filter chamber 55 further cools the combustion gas and collects the combustion residue.
A second coolant / filter 59 is provided which fulfills
I have. [0009] The metal structure of a forged product is uniform.
It is said that the cost is high while the toughness is large
There are drawbacks. In addition, as disclosed in the above publication,
Of outer shell member having a concentric cylinder by forging
In some cases, the circular part 46 does not become flat,
Required, which increases the number of manufacturing steps and costs.
Great. Further, the circular portion 46 disclosed in the above-mentioned publication is disclosed.
In the outer shell member having the cylinder 43 integrated with the
When changing the volume of 3, the entire diffuser shell 41
The shape of the cylinder 43 needs to be changed.
It was not easy to change for free. In addition, the above publication
In a gas generator as disclosed in
Due to the structure where the coolant / filter chamber is defined on the side,
The diameter of the gas generator has increased, which has resulted in a large gas generator.
As a result, the weight and weight are increased. Furthermore, the above public
In gas generators such as those disclosed in
The combustion chamber is defined by a cylinder 44 of the user shell.
As a result, the shape of the diffuser shell becomes complicated,
The production of gas generators becomes complicated and increases the cost.
Has also become. [0010] As another example, the coolant of the gas generator is
For example, a strip-shaped wire mesh wound multiple times in a cylindrical shape
The combustion gas generated in the combustion chamber of the gas generator is
During the passage, the combustion gas is cooled and the
It also collects relatively large combustion residues. FIG.
Similar to that shown in US Patent 4,902,036 to Zander et al.
1 shows an example of a gas generator provided with a coolant. This gas
The generator comprises a housing 23 having a gas outlet 230.
1 and a point defined in the center of the housing 231.
Outside of the ignition means accommodation chamber 232 and the ignition means accommodation chamber 232
A combustion chamber 233 defined on the side and an outside of the combustion chamber 233
A coolant / filter chamber 234 defined on the side.
ing. And the ignition means is stored in the ignition means accommodation chamber 232.
That is, the igniter 235 and the transfer charge 236 are provided,
The firing chamber 233 is ignited by ignition means to generate gas.
238 for filling the gas generating agent 237 is provided.
The coolant / filter chamber 234 has a combustion chamber 233.
Coolant 239 for cooling the combustion gas generated in
And a filter 240 for purifying the combustion gas is provided.
ing. The combustion chamber 233 has a combustion gas outlet 244.
Cup-shaped combus hawk with a central hole 245 at the bottom
243, and coolant / filter
The chamber 234 is divided into an upper chamber and a lower chamber by a retainer 242.
The upper chamber has a filter 240, and the lower chamber has a filter 240.
Are each provided with a coolant 239. Then, a sensor (not shown) detects an impact.
Then, the signal is sent to the igniter 235 and the igniter 235
Is activated, which causes the transfer charge 236 to ignite and
A flame of pressure is generated. This flame passes through the opening 241
Break the wall of the canister 238 to the gas generating agent 237 inside
Ignite. As a result, the gas generating agent 237 burns,
And this gas is supplied to the jet port of the combustor cup 243
244, and cools while passing through the coolant 239.
And a relatively large combustion residue is collected.
The remaining combustion residues are collected while passing through the filter 240.
The cooled, purified gas passes through the gas outlet 230
So that it can flow into an airbag (not shown).
You. This causes the airbag to inflate and the occupant and hard structures
Form cushions between them to protect occupants from impact. Conventional coolant has a simple void structure.
To effectively collect fine combustion residues.
There is still a problem with respect to Therefore, separate from coolant
Need a filter for each. In addition, conventional coolant
Has low pressure loss (good gas permeability),
Defining a pressure chamber, for example a combustion chamber, with coolant
Is difficult. For that purpose, separate the combustion chamber from the coolant
Defining members, such as the above combustor cups, combustors
Requires ringing. [0013] Therefore, a gas generating device having a conventional coolant is used.
In the case of gensets, the number of parts increases, and
As the diameter increases, the gas generator becomes larger and heavier.
The result is inviting. Further, the conventional coolant has a bulk density (composition).
The value obtained by dividing the mass of a feature by its bulk volume)
It is difficult to define the pressure chamber with the coolant
In addition, the shape retention strength of the coolant is low,
Easily deformed when subjected to gas pressure, causing coolant deformation
Adversely affects the collection of combustion residues. It is an object of the present invention to provide an improved relatively simple
It is to provide a gas generator structure for an airbag. Another object of the present invention is to provide a gas containing a gas generating agent.
Coolant defining the outer boundary of the combustion chamber in the heat generator
Gas generation for airbags using a filter / filter
Is to provide a container structure. Another object of the present invention is to provide a non-azide gas generating agent.
Improved relatively simple gas generation for airbags
It is to provide a genital structure. Still another object of the present invention is to provide a non-azide gas
Improved relatively simple airbags with generator
Gas generator structure and gas generation including non-azide gas generants
Improved cooler delimiting the outer boundary of the combustion chamber in the vessel
To provide a component / filter structure. Still another object of the present invention is to provide an improved ratio
A relatively simple gas generator structure for an airbag,
Combustion inside the outer housing and inside the outer housing
Between the internal coolant / filter structures that define the perimeter of the chamber
To provide something that includes an improved combination of
You. Still another object of the present invention is to provide an image processing apparatus comprising:
For drivers using construction, elements and / or gas generating agents,
Gas generator structure for airbags for occupants and side collisions and
Is to provide a system. [0021] SUMMARY OF THE INVENTION According to the present invention, there is provided an airbag for an airbag.
The gas generator is formed by press-forming a metal plate
Press-forming a diffuser shell with a metal plate
A housing made of a closure shell having a central hole
And a igniter which is made of a
A central tubular member within the housing defining a stepped cavity
Gas generating means disposed surrounding the central tubular member
A combustion chamber is defined and a flow rate of 100 l / min /
cm^Two0.3 × 10^-2~ 1.5 × 10^-2kg / cm^Twoof
With pressure loss, it cools combustion gas and collects combustion residue.
Includes coolant / filter, said combustion by impact
The gas generated in the room is introduced into the airbag and
To protect members. One preferred embodiment of the gas generator of the present invention
The diffuser shell, closure shell and center
Including a tubular member and a coolant. These four members
Are manufactured separately. That is, the diffuser shell and
The closure shell is made by pressing a plate,
The member is preferably made of a tube obtained by rolling a plate into a tubular shape and welding.
And the coolant / filter is preferably flat
Knit wire mesh in the radial direction and compress in the radial and axial directions.
Consists of a shape. Conventionally, it is integrated with the circular part of the diffuser shell.
By separating the formed central tube,
The shape of the fuser shell is simplified. Also, the central tube
By separating, the volume of the central cylinder is diffused.
And can be changed freely as needed
You. The center tube member uses, for example, the UO press method alone
And can be manufactured at low cost. Such a welding pie
The UO press method (a plate is formed into a U-shape and then into an O-shape)
And welding seams) or electronic resistance welding
Method (winding the plate around a cylinder and applying pressure to the seam
Including the process of welding seams with resistance heat through large currents)
Can be made with [0024] Diffuser shell and closure shell
By forming by pressing, the diffuser
Production of shells and closure shells
Reduction in manufacturing costs is also achieved. Coolant / fill for the gas generator
Is disposed surrounding the central tubular member, and the housing and
Together, they define a combustion chamber for the gas generating means. This coolant
/ Filter has a certain pressure drop, thereby causing the combustion
The pressure of the combustion gas generated in the room is
It can be maintained at a value desired for combustion. Book
According to the conventional generator / coolant / filter
Provided combustion chamber partition members, for example,
And combustor cups can be eliminated.
The coolant / filter also has a predetermined relatively large size.
Having a pressure loss improves combustion residue of combustion gas.
Can be collected. Therefore, the conventional coolant
/ Abolish the filter provided separately from the filter
Can be. Another aspect of the gas generator structure is that of the housing.
Centrally located, with coolant / filter and housing
Attached to the closure shell in a partitioned combustion chamber
The central cylinder is omitted by using an ignition can. In this specification
Coolant / filter is preferably non-azide gas
Cooling and filtering the gas generated by the generator
Cooler to better describe the dual function of
A filter / filter structure or device. In a preferred embodiment, the coolant / fill
The pressure drop through the filter structure is preferably
100 l / min / cm^Two0.5 × 10^-2~ 1.2
× 10^-2kg / cm^TwoAnd More preferably at room temperature
Flow rate 100 l / min / cm^Two0.7 × 10^-2
~ 0.9 × 10^-2kg / cm^TwoAnd Solid gas generating means suitable for the present gas generator
As NQ / Sr (NO_Three)_Two/ Perch consisting of CMC
There is a gas generator. This is NQ (Nitroguanidinium)
32.4% by weight, Sr (NO_Three)_Two(Strontium nitrate
57.6% by weight of CMC (carboxymethylcell)
Loin) is a mixture of 10% by weight. NQ as fuel
Act, and Sr (NO_Three)_TwoActs as an oxidizing agent, and
CMC acts as a binder. The solid gas generating agent is preferably 70 kg / c.
m^TwoHas a linear burning rate of 5 to 30 mm / sec under a pressure of
More preferably, it is 5 to 15 mm / sec. Diffuser shell and closure shell
Is a stainless steel with a thickness of 1.2 to 3.0 mm, respectively.
Made of plate, diffuser shell is 45-75mm outside
Diameter, closure shell 45-75mm outer diameter
Each has a diffuser shell and a closure shell
Between the formed outer peripheral wall and the coolant / filter
Preferably a gap of 1.0-4.0 mm is formed
No. Diffuser shell and closure shell
Forms the housing of the gas generator and at least one
Can be provided with a mounting flange. Diffuse
The shell and closure shell can be connected by various welding methods,
Zuma welding, friction welding, projection welding, electron beam
Joining by welding, laser welding, TIG welding, etc.
Can be. Diffuser shell and closure shell lumber
The nickel plating is applied to the steel sheet instead of the stainless steel sheet.
You may use what gave the key. Diffuser shell
And an outer peripheral wall formed by the closure shell and the coolant
The gap formed between the filter and the filter
The gas cooled and purified by passing through the
Functions as a gas passage to the gas outlet of the fuser shell
I do. The gas outlet of the diffuser shell is connected to
A diameter of 0 to 5.0 mm, a total of 12 to 24 circumferentially
Can be arranged. The central cylinder member of the electrically operated gas generator has a thickness
1.2-3.0mm stainless steel plate is rolled into a tube
It consists of a welded tube and has an outer diameter of 17-22 mm.
Can be. For machine-operated gas generators, the central tube is thick
It has a diameter of 1.5 to 7.5 mm and an outer diameter of 19 to 30 mm. The central tubular member also has a thickness of 1.5 to 3.0 mm.
A total of 6 to 9 through holes having a diameter and arranged in the circumferential direction
It is preferred to have. These through holes are staggered in two rows
And one row consists of three 1.5 mm diameter through holes.
And the other row consists of three 2.5 mm diameter through holes
be able to. Central tube member forms a hollow chamber for ignition means
In this hollow chamber, an igniter and an ignition means consisting of a transfer charge are stored.
Is accepted. The through hole is the hole from which the flame of this transfer charge gushes out
Becomes The center cylinder member has a female screw carved on its inner periphery,
A male screw is engraved on the outer periphery of the igniter, and the igniter is
To fix the ignition means to the central tubular member.
be able to. Alternatively, the central tubular member is
Having a central cylindrical member by caulking the caulked portion.
To the ignition means. In addition, by welding
Can also be fixed. Diffuse the center tube member
Friction welding, projection, etc.
Welding, laser welding, arc welding, electron beam welding, etc.
No. The coolant / filter is a flat knit wire mesh.
Lay radially, compress radially and axially and mold
It is preferable that it is composed of Molded in this way
Coolant / filter has a complicated void structure.
And has an excellent trapping effect. In that way, the cooling function
-Integrated coolant / filter that has both a function and a collecting function
-Can be realized. In a preferred embodiment such a coolant
/ Filter at normal temperature and flow rate 100 l / min / cm^Two
0.3 × 10^-2~ 1.5 × 10^-2kg / c
m^TwoPressure loss. More specifically, flat knit stainless steel metal
The net is formed in a cylindrical body, and one end of this cylindrical body is turned outward.
Fold it back to form an annular laminate, and mold this laminate
Coolant / filter by compression molding inside
Can be molded. Alternatively, flat knit stainless steel
Form a metal mesh into a cylindrical body, and press this cylindrical body in the radial direction
To form a plate, and this plate is wound into a cylindrical shape in multiple
Forming a layered body and compression molding this laminate in a mold
Therefore, coolant / filter can be formed
You. Stainless steel, which is the material of the wire mesh, is SUS304,
SUS310S, SUS316 (JIS standard symbol), etc.
Can be used. SUS304 (18Cr-8
Ni-0.06C) is austenitic stainless steel
It shows excellent corrosion resistance. The coolant / filter also has a wire diameter of 0.3 mm.
Made of wire mesh of 3 to 0.5mm, wire diameter 0.5 to inside
1.5-2.0 mm thick layer consisting of 0.6 mm wire mesh
And a double structure having The inner layer is
Flame of the igniter sprayed toward the coolant / filter,
And the gas generating agent ignited by this flame and burned
Coolant to protect coolant / filter against burning gas
G / filter protection function. The coolant / filter is 55-65 m
m outer diameter, 45-55 mm inner diameter, and 26-32 mm
Can have a height of 5 to 10 mm
It is. Otherwise outer diameter 40-65mm, inner diameter 30-5
5 mm and a height of 19-37.6 mm. Ma
In addition, coolant / filters are
Preferably have a coolant / filter support
No. This coolant / filter support member is
It is placed opposite to the flame through hole of the igniter
Flameproof plate covering the inner surface of the coolant / filter
Having. This flameproof plate is used for coolant / filter
Coolant / filter against the flame blasted toward
Coolant / filter protection function and flame direction
A fuel that converts and allows the flame to pass sufficiently to the gas generant
Has a baking promotion function. Coolant / filter support
A 0.5-1.0mm thickness stainless steel plate, steel plate etc.
Can be formed from When moisture enters the housing from the outside
Gas outlet in the diffuser shell to prevent
Aluminum tape having a width of 2 to 3.5 times its diameter
It is preferred that they be closed by a pump. Aluminum seal
Apply the tape with adhesive aluminum tape or
Adhesive, preferably one that melts by heating to ensure adhesion
For example, using hot melt adhesive
Can be performed. Provision of a gas generating agent cushion in the combustion chamber
Can be This cushion is made of stainless steel
Formed from a mesh and fixed to a support plate, which is
The inner and outer perimeters have bent portions, and the elasticity of these bent portions
Is fixed between the central tube member and the coolant / filter
Preferably. Is the cushion a stainless steel wire mesh
When formed from this cushion, this cushion
Can work. Is the cushion a silicone foam
Can also be formed. The total height of the housing is 30 to 35 mm.
Preferably. The coolant / filter has a predetermined wire diameter and a predetermined
And the pressure of the combustion gas generated in the combustion chamber is
To maintain the correct value for proper combustion of the generator
You. Correct setting of wire diameter and bulk density also requires combustion residue of combustion gas
Capable of retaining shape of coolant / filter
Can be increased sufficiently. Thus, the coolant /
Prevents the filter from being deformed by the combustion pressure, and the residue of combustion dirt
Ensure proper function of catching coolant / filter
Can reduce the thickness. I like this bulk density
3.5 to 4.5 g / cm^ThreeBut the wire diameter is 0.3 ~
3.0-5.0 g / cm at 0.6 mm^ThreeCan be
You. Instead of a metal mesh, a sintered metal cooler
Can be used to form a solution / filter means. Coo
The runt / filter is also a composite of metal and ceramic
Alternatively, it can be made from a foamed metal body. Some Other Coolant / Filter Conditions
There are various ways, but they are described in the detailed description together with the drawings. The present invention is also described in US Pat. No. 5,466,420.
Used in aluminum housings like
obtain. In this case, a housing having a thickness of 2 to 4 mm
Is formed by means other than press forming, and
The shell is friction welded to the closure shell.
Are combined. The gas generator for an air bag according to the present invention is as follows.
Including: press-formed plate with gas outlet
Diffuser shell and press-formed plate
A housing comprising a closure shell having a hole;
A hollow for ignition means which is made of a tube and is arranged concentrically with the central hole
A central cylindrical member in the housing forming a chamber, and a wire diameter;
0.3-0.6 mm, bulk density 3.0-5.0 g / cm
^ThreeSurrounding said central tubular member, made of metal mesh
The combustion chamber for the gas generating means arranged in
100 l / min / cm^Two0.3 × 10^-2~
1.5 × 10^-2kg / cm^TwoCombustion gas with pressure loss of
Coolant / Fill for cooling air and collecting combustion residues
And a gas generator that includes
An impact sensor for outputting the gas,
A control unit that outputs an operation signal to the ignition means of the generator
The knit and the gas generated by the gas generator are introduced and expanded.
Airbag to be stretched, and moji accommodating the airbag
This is an airbag device composed of a fuel case. Another aspect of the invention is that gas modifies the housing.
Both ends of the coolant / filter as a result of shaping or deformation
Surface by bypassing the surface
It is possible to form the housing with a suitable material. Departure
Ming is a coolant / filter and cooperates with it as described above.
Short path and bypass from coolant / filter
Provide a combination with cooperating baffles to prevent
This will be described in more detail in the detailed description of the drawings. This
Without a protective structure, unfiltered combustion residue could be trapped.
Get out of the generator and damage the combination bag
You. All provided structures are for driver, crew and side impact
It is for a gas generator for bumping. Next, a housing suitable for a non-azide gas generating agent
The following describes the parameters of logging. Relatively slow burning of many non-azide gas generants
To adapt to the baking speed (less than 30 mm / sec)
Gas generator at the right time for divers, occupants and side impacts
The A / At ratio is used to ensure that
Adjust A is the total surface area of the gas generating agent, and At is
The total surface of the gas exhaust holes in the diffuser shell of the gas generator
It is a product. In the case of a gas generator for an airbag in a driver's seat,
The preferred amount of non-azide gas generant is from 20 to 50 g of
Leader. In the passenger seat (so-called passenger seat),
The preferred amount of water generating agent is from 40 to 120 g. side
For collision use, the weight is 10 to 25 g. This combustion parameter
The non-azide gas generant particles are described in further detail below.
It is strengthened by adjusting the diameter. Other parameters to adjust
The meter measures the internal volume and gas generation in the gas generator housing.
The amount of the agent, also described in detail below. The optimization of gas flow is based on coolant / flow.
A defined gas passage between the filter and the end wall of the housing
The radial (annular) cross-sectional area St of the space is
The total area At of the gas exhaust holes of the user
Can be achieved by controlling This ratio St / At is
Preferably it is in the range of 1 to 10, more preferably 2 to 5.
Preferably, it is enclosed. Maintaining the annular cross-sectional area of this gas passage or space
The outer perforated circle in the coolant / filter
Provide a tubular reinforcement, which defines the inner wall of the gas passage,
Coolant / filter in its passage under pressure of generated gas
To prevent swelling. Other suitable outer wall support layers may also be used.
Can be provided for purpose. The coolant / filter structure of the present invention
Reduce the amount of solid particles in the gas ejected from the
Adjust fully. Preferably, less than 1 g and less than 0.7 g
It is. Further, the total area At of the diffuser hole and the emission area
The raw gas volume ratio is greater than the desired index
And maintain a capacity of 130cc or less
Maximum pressure range from 100 in the gas generator housing
300kg / cm^TwoMaintained in the diffuser hole
Depending on the size and number of (70kg / cm^TwoLine burning under pressure
For non-azide gas generating agents whose speed is 30mm / sec or less
Then, the area At is adjusted. 120cc housing
In volume, the total area of the gas exhaust holes is preferably 1.1
3cm^TwoIt is. [0055] Embodiments of the present invention will be described below with reference to the drawings.
It will be described based on. FIG. 1 shows a gas generator for an air bag according to the present invention.
FIG. This gas generator is a diffuser shell
1 and a housing 3 composed of a closure shell 2;
A central tubular member 4 in the housing 3 and this central tubular portion
The coolant / filter 5 disposed around the material 4
Contains. The diffuser shell 1 is made of a stainless steel plate
Is formed by pressing, and the peripheral wall 6 of the present embodiment is
In this case, 20 gas outlets 7 with a diameter of 3 mm are equally spaced in the circumferential direction.
It is arranged. This diffuser shell 1 has a circular portion.
8 has a concave portion 9 recessed inward at the center thereof,
In addition to the igniter 18 that constitutes the ignition device,
The medicine container 10 is sandwiched. Closure shell 2
The stainless steel sheet is formed by pressing a stainless steel plate.
Has a central hole 12. Concentric with this central hole 12
A central cylindrical member 4 is disposed, and one end side end surface of the central cylindrical member 4
34 abuts against the inner surface 35 of the closure shell. K
The closure shell 2 is also attached to the distal end of the peripheral wall 13.
It has a flange portion 14 for attachment. Diffuser
The shell 1 and the closure shell 2 are mutually
The laser welding 15 is performed at this fitting portion.
Are joined to form a housing 3. The central tubular member 4 is a stainless steel member having both ends opened.
And a female thread 32 at one end.
You. The other end of the central cylindrical member 4 is inert gas arc welding
As a result, the concave portion 9 is formed in the circular portion 8 of the diffuser shell.
It is fixed so as to surround it. This central tubular member 4
Inside the igniter cavity, i.e. the igniter
An ignition device accommodating chamber 17 is formed. Ignition equipment
The point is activated by a signal from a sensor (not shown).
A firearm 18 and a transfer charge ignited by the igniter 18
It consists of a charged transfer charge container 10. Of the igniter 18
A male screw 36 is cut on the outer peripheral surface.
The igniter 18 is screwed with the female screw 32 of the central cylinder member to
It is screwed to the member 4. A collar provided on the igniter 18
37 has a function of preventing loosening of the screw. Igniter 18
Is provided with an O-ring 20 in its outer circumferential groove.
Serves as a seal for the ignition means housing chamber 17. Center tube
The member 4 also includes two rows of studs arranged in a zigzag pattern at the other end.
It has a through-hole row 21. In the case of the present embodiment, two rows
One row consists of three 1.5 mm diameter through holes,
The other row consists of three 2.5 mm diameter through holes
You. Diffuser and closure shells 1, 2
Some preferred parameters of the central tubular member 4 are as follows:
It is as follows. Diffuser shell and closure shell
Is a stainless steel with a thickness of 1.2 to 2.0 mm, respectively.
Made of plate, diffuser shell is 65-70mm outside
Diameter, closure shell 65-75mm outside diameter
Each has a diffuser shell and a closure shell
1.0% between the formed outer peripheral wall and the coolant / filter
Preferably, a gap of ~ 4.0 mm is formed. The gas outlet of the diffuser shell is set at 2.
0 to 5.0 mm in diameter, 16 to 24 in total in the circumferential direction
Can be arranged. The central cylindrical member has a thickness of 1.2 to 3.0 mm.
It consists of a stainless steel plate rolled into a tube and welded.
It can have an outer diameter of 7-20 mm. The central cylindrical member also has a thickness of 1.5 to 3.0 mm.
A total of 6 to 9 through holes having a diameter and arranged in the circumferential direction
It is preferred to have. These through holes are arranged in two rows in a staggered manner.
One row consists of three 1.5 mm diameter through holes,
The other row may consist of three 2.5mm diameter through holes
it can. Further, the central cylindrical member 4 is an electric or mechanical type.
Different dimensions are preferred depending on the use of the sensor
No. In the mechanical type, the thickness of the cylinder wall is 1.5 to 7.5 mm
Diameter 19-30mm, thickness of the cylinder wall is 1.2-
3.0 mm and an outer diameter of 17 to 22 mm. The coolant / filter 5 is a central cylindrical member
4 and a central tubular member with the housing
4 around the annular chamber, ie the combustion chamber 2 for the gas generating means.
2 is defined. This coolant / filter 5 is
Lay stainless steel flat knitted wire mesh in the radial direction
And 3.0-5.0 g / cm^Three
With a bulk density of Of this coolant / filter 5
A preferred molding method will be described with reference to the drawings. First, wire diameter
Flat knit 0.3-0.6mm stainless steel wire
It is formed in a cylindrical body 60 as shown in FIG. Next, this circle
One end 61 of the cylindrical body 60 is bent outward as shown in FIG.
And repeatedly bent to form an annular laminate 62
I do. The number of bends depends on the wire diameter of the strand and the thickness of the coolant.
It can be determined in consideration of such factors. Finally, this laminate 62
Into a mold (not shown), and have a bulk density of 3.0 to 5.0 g /
cm^ThreeRadial and axial compression in the mold so that
To obtain a coolant / filter 5 as shown in FIG.
You. The coolant / filter of the present invention has a wire diameter
A 0.3-0.6 mm flat knit wire mesh is weighted radially in a cylindrical shape.
It is made by compression molding in the radial and axial directions. like this
Laminate a wire mesh with a stitch structure in the radial direction and press-mold
This coolant / filter has complicated void structure.
And has an excellent trapping effect. Therefore, this cooler
In addition to the original cooling function,
Can also have a collecting function as a
Therefore, a coolant that has both cooling and collection functions
Coolant / filter integrated with filter / filter
Wear. Another Method for Forming Coolant / Filter 5
Will be described with reference to FIGS. Cylinder as shown in Figure 2
After forming the body 60, the cylindrical body 60 is pressed in the radial direction.
Thus, a plate 64 as shown in FIG. 5 is formed. This plate 6
4 is wound into a cylindrical shape as shown in FIG.
Is formed, and the laminated body 65 is radially and axially
To form the coolant 5. The coolant / foil thus formed is
In the filter 5, the loop-shaped stitch is crushed in each layer.
Shape 63, which forms a layer in the radial direction.
doing. Therefore, the void structure of the coolant becomes complicated.
Thus, this coolant has an excellent collecting effect. As shown in FIG. 11, flat knitting is performed by knitting a metal wire.
Formed, all stitches pulled out in one direction to form a loop
It has a void structure. Using the above molding method, the flow rate at room temperature
100l / min / cm^Two0.3 × 10^-2~ 1.5x
10^-2kg / cm^TwoCompression loss
You can get shaped coolant / filter
You. Inserting another laminated body inside the laminated body 65
Applying a double structure coolant by compression molding
Can be Another laminate has a wire diameter of 0.5 mm, for example.
FIG. 6 shows a plate 64 as shown in FIG.
Can be made of two turns
You. The coolant / filter 5 is provided in the combustion chamber 22
The combustion gas generated in the combustion chamber is cooled
It has the function of collecting the residue. Ring body 23 is coolant
/ Mounted on the outside of the filter 5, with many through holes in the entire peripheral wall
And strengthen the coolant / filter 5. They are
This is shown in FIG. Still referring to FIG. 1, the diffuse
An inclined portion 67 surrounds the circular portion 8 of the shell in the circumferential direction.
Is formed. Also, the annular portion 68 of the closure shell
And a similarly inclined portion 69 is formed in the circumferential direction.
ing. These slopes 67 and 69 are
Functions as a means for preventing the movement of the filter 5.
The outer peripheral walls 6 and 13 of the housing and the coolant /
As means for forming a gap between the ring bodies 23 of the filter
Is also working. The gas generating agent 2 in the form of pellets is
5 and a cushion 26 of the gas generating agent 25 are provided.
Have been. The ring-shaped cushion 26 is made of stainless steel.
It is formed from a wire mesh and is fixed to the support plate 24. this
The cushion 26 also serves as a coolant. Ring type
The support plate 24 is made of a stainless steel plate,
And a bent portion 66 on the outer periphery.
It is fixed between the central tubular member 4 and the coolant 5. The outer peripheral walls 6 and 13 of the housing and the cooler
Gap is formed between the ring bodies 23 of the
This gap 28 passes through the coolant / filter 5.
The cooled and purified gas passes through the diffuser shell.
It functions as a gas flow path to the gas outlet 7. Also, c
To prevent environmental moisture from entering the housing 3
And diffuser with aluminum sealing tape 29
The gas outlet 7 of the shell is closed. In the gas generator constructed as described above,
When a sensor (not shown) senses an impact,
Is sent to the igniter 18 so that the igniter 18 is activated.
The explosive charge in the explosive charge container 10 is ignited and a high-temperature flame
Generate. This flame is blown out from the row of through holes 21 and the combustion chamber
The gas generating agent 25 in the fuel tank 22 is ignited. This will generate gas
The crude agent burns to generate high-temperature, high-pressure gas, which is
Is cooled by the cushion 26 and the combustion residue is collected.
And further cooled while passing through the coolant / filter 5.
It is rejected and the combustion residue is collected. Cooled and purified fuel
The firing gas passes through the through-hole of the porous ring body 23, and the gap 2
8 and break the wall of aluminum sealing tape 29
Spouted from gas outlet 7 and into airbag (not shown)
Inflow. This inflates the airbag and makes it tight with the occupant
Form cushions between structures to protect occupants from impact
I do. FIG. 8 shows the air having the gas generator of the present invention.
3 shows an example of a bag device. This airbag device is
Greige 80, impact sensor 81, control unit
82, the module case 83, and the airbag 8
It consists of four. The gas generator 80 will be described with reference to FIG.
Gas generator is used. The shock sensor 81 is, for example, a semiconductor type acceleration sensor.
It can consist of a sensor. This semiconductor type acceleration sensor
The silicon substrate is made to flex when acceleration is applied.
Four semiconductor strain gauges are formed on the beam of the plate,
These semiconductor strain gauges are bridge-connected.
Beam is deflected when acceleration is applied, causing strain on the surface
I do. This strain changes the resistance of the semiconductor strain gauge.
The resistance change as a voltage signal proportional to the acceleration
It is designed to detect. The control unit 82 controls the ignition determination
The ignition determination circuit has a semiconductor acceleration
The signal from the degree sensor is input. Sen
Control when the shock signal from the sensor exceeds a certain value
The unit 82 starts the operation, and calculates a value having a result of the operation.
When it exceeds, an operation signal is output to the igniter 18 of the gas generator 80.
Power. The module case 83 is made of, for example, polyurethane.
Tongue and includes a module cover 85
You. In this module case 83, an airbag 84 and
The gas generator 80 is housed and configured as a pad module.
This pad module is used for automobile steering.
It is attached to the wheel 87. The airbag 84 is made of nylon (for example, nylon).
66) or polyester, etc.
Of the gas generator surrounds the gas outlet 7 of the gas generator.
In the folded state, it is fixed to the flange 14 of the gas generator.
Have been. In the event of an automobile collision, a semiconductor type acceleration sensor
When the sensor 81 senses, the signal is sent to the control unit.
Sent to the port 82 and the shock signal from the sensor exceeds a certain value
At this point, the control unit 82 starts the calculation and
When the calculated result exceeds a certain value, ignition of the gas generator 80
An operation signal is output to the device 18. This allows the igniter 18
It operates and ignites the gas generant, and the gas generant burns
Generate This gas blows out into the airbag 84,
As a result, the airbag breaks the module cover 85 and inflates.
Out, absorbing the shock between the steering wheel 87 and the occupant.
Form a cushion to fit. FIG. 7 shows another example of the gas generator of the present invention.
You. This gas generator consists of a diffuser shell and a closure
The shape of the shell differs from that of FIG. Sand
And diffuser shell 1 'and closure shell 2'
Have flange portions 30 and 31, respectively,
The flanges 30 and 31 are overlapped and welded.
You. In addition, the closure shell 2 'has an
A bent portion 72 that bends in the opposite direction.
A central hole 12 'is formed by the surface. Furthermore, diff
The fuser shell 1 ′ has a configuration of an inclined portion 70 extending in the circumferential direction.
Has a dish-shaped circular portion 8 '.
Has a function of positioning the central tubular member 4 '. One end of the central cylindrical member 4 'is closed.
Projecting to the outside of the well 2 ', and a caulking portion 16
Has formed. An outward flange 33 is formed at the other end.
This outward facing flange 33 is attached to the diffuser shell.
Abutting against the bottom of the dish-shaped circular portion 8 '
And the circular portion 8 'is subjected to the projection welding,
The central tubular member 4 'is fixed to the diffuser shell 1'
I have. The central tubular member 4 'also has a single row of penetration at the other end.
It has a row of holes 21 '. In the case of this embodiment, the diameter is 2.5
Six through-holes of mm are arranged in the circumferential direction. Through hole
Row 21 'is closed by aluminum tape 74.
Therefore, the transfer charge 75 is directly filled in the central cylindrical member 4 '.
You. The central cylindrical member 4 'is positioned at its bottom by a dish-shaped circular portion 8'.
After being fixed and fixed to the diffuser shell 1 ',
The central hole 12 'of the closure shell is inserted into the central cylindrical member 4'.
Through the closure shell and diffuser shell
And the closure shell and the central tubular member are joined.
A ring-shaped plate portion elastically fitted to the central tubular member 4 '
The material 76 functions as a welding protection plate. Central tube member
A step 71 for the igniter 18 'is formed at one end of 4'.
I have. After the igniter 18 'is filled with the transfer charge 75,
It is inserted into the central cylinder member 4 ′ and locked on the step 71. That
Then, by caulking the caulking portion 16 of the central tubular member,
It is fixed to the housing 3 '. The coolant / filter 5 'moves
Having a coolant / filter support member 38 for preventing
ing. This coolant / filter support member 38
Press-formed stainless steel sheet of about 1mm thickness,
It is disposed around the outward flange 33 of the central tubular member and is inclined.
An annular portion 39 in contact with the inclined portion 70 and a pair of
It has a flameproof plate portion 60 that bends and bends. Flameproof plate 60
Is a through hole for the flame of the ignition means,
That is, the cooler is arranged to face the through-hole row 21 '.
And the inner peripheral surface 61 of the component / filter 5 '.
This flameproof plate section 60 is directed to the coolant / filter 5 '.
Coolant that protects the coolant against flames
Flame is a gas generating agent with protection function and flame direction change
It has a combustion promoting function to make it rotate sufficiently. What
As a means to prevent coolant / filter movement
The inclined portions 67 and 69 (FIG. 1) and the coolant /
In addition to the filter support member 38, the top and bottom of the housing,
Is a cool-down with one of the corners 73 protruding inward.
5 'is formed so as to come into contact with the
G / filter 5 'may be prevented from moving.
No. The coolant / filter 5 shown in FIG.
The hole ring body 23 is not always necessary, and
In the case of coolant / filter 5 '
Not equipped. In the gas generator constructed as described above,
When a sensor (not shown) senses an impact,
Is sent to the igniter 18 ′, and the igniter 18 ′ is activated.
Thereby, the transfer charge 75 is ignited to generate a high-temperature flame.
This flame breaks through the wall of the aluminum tape 74 and
Spouted from row 21 ', by coolant / filter 5'
Into the defined combustion chamber 22 '. Enter combustion chamber 22 '
Flaming flame is applied to the gas generating agent 25 'near the through-hole row 21'.
At the same time as ignition, the course is bent by the flameproof
Ignition of the gas generating agent at the bottom of the combustion chamber. This will generate gas
The crude agent burns to generate high-temperature, high-pressure gas, which is
Passes through the coolant / filter 5 '
Cooling while passing through filter / filter 5 '
Residue is collected, and the cooled and purified combustion gas passes through the gas passage.
28 ', an airbag (shown in FIG.
Without). This inflates the airbag,
Form a cushion between the occupant and a rigid structure to prevent impact
Protect crew. FIG. 10 shows the coolant / filter of the present invention.
An example in which one example is applied to a gas generator for an airbag is shown.
The gas generator includes a diffuser shell 111 and a claw.
A housing 113 composed of a jaschel 112 and this housing
Central cylindrical member 11 arranged at the central portion in housing 113
4 and disposed around the central tubular member 114.
A coolant / filter 104. The diffuser shell 111 is made of stainless steel.
A steel plate is formed by pressing, and the peripheral wall 106
A plurality of gas outlets 107 are arranged at equal intervals in the circumferential direction.
I have. The diffuser shell 111 also extends circumferentially.
The inclined portion 70 has a dish-shaped circular portion 108.
The dish-shaped circular portion 108 determines the position of the central cylindrical member 114.
Function. The closure shell 112
A stainless steel plate is formed by pressing
Has a hole, and the hole edge of this hole is bent outward in the axial direction.
Bent portion 172 is formed.
A central hole 115 is formed by the peripheral surface. The central tubular member 114 is made of stainless steel pipe.
One end protrudes outside the closure shell 112
A caulked portion 116 is formed at the protruding end. Also
On the other end side, an outward flange 133 is formed.
Plate 133 of the diffuser shell
08, the outward flange 133 and the circular portion 1
08 is subjected to projection welding and the central cylinder
The material 114 is fixed to the diffuser shell 111.
You. The central tubular member 114 also has a row of penetrations at the other end.
It has a row of holes 121. Inside the central cylinder member 114, an ignition means
An ignition means accommodating chamber 117 for accommodating
You. The ignition means is operated by a signal from a sensor (not shown).
The igniter 118 that operates and the ignition is performed by the igniter 118
175. The through-hole row 121
It is closed by aluminum seal tape 174,
The transfer charge 175 is directly filled in the central tubular member 114.
You. The central cylindrical member 114 is
And the diffuser shell 111
After fixing, the central hole 115 of the closure shell is
It is inserted through the cylindrical member 114 and the flange of the diffuser shell
The flange 130 and the flange 131 of the closure shell are heavy.
Neck, then closure shell and diffuser
Shell, and the closure shell and the central tubular member are joined
You. A ring elastically fitted to the central tubular member 114
The shape plate member 176 functions as a welding protection plate. During ~
A step 171 for the igniter 118 is provided at one end of the central cylinder member 114.
The igniter 118 is filled with the transfer charge 175.
After being inserted, it is inserted into the central cylindrical member 114 and the step portion 171 is inserted.
Is locked. Then, the swaged portion 116 of the central tubular member is
It is fixed to the housing 113 by swaging. The coolant / filter 104 is a central cylinder
The housing 113 and the housing 113
Both are annular chambers around the central tubular member 114, ie, combustion
A chamber 122 is defined. Pellets in combustion chamber 122
Of the gas generating agent 125. This coolant
/ Filter 104 is a coolant that prevents its movement
/ Filter support member 138. This cooler
138 is a stainless steel plate.
Press-formed, outward flange 13 of central tubular member
An annular portion which is arranged so as to surround 3 and abuts on the inclined portion 170
139, and the flameproof plate portion 1 that is bent with respect to the annular portion 139.
60. The flameproof plate portion 160 includes the through-hole row 121.
Is disposed opposite to the coolant / filter 104.
The inner peripheral surface 161 is covered. This flameproof plate section 160
Is the fire that is ejected toward the coolant / filter 104
Protects coolant / filter against fire
Change the direction of the flame so that the flame can rotate enough to the gas generating agent
I have to. Outer peripheral walls 106 and 109 of the housing;
A gap 128 is formed between the coolant / filter 104
The gap 128 is provided with a coolant / filter.
The gas cooled and purified after passing through 104 is diffused.
Functions as a gas flow path to the gas outlet 107 of the shell
I do. Also, moisture enters the housing 113 from outside.
Aluminum tape 129 to prevent
The gas outlet 107 of the diffuser shell is more closed
I have. In the gas generator configured as described above,
When a sensor (not shown) senses an impact,
Is sent to the igniter 118, and the igniter 118 is activated.
Charge 175 ignites and generates a hot flame
You. This flame broke through the wall of aluminum tape 174
Spouted from the through-hole row 121, the coolant / filter 10
4 into the combustion chamber 122 defined by Combustion chamber 12
2 enters the gas generating agent 1 near the through-hole row 121.
25, and the course is bent by the flameproof plate portion 160.
And ignites the gas generating agent at the bottom of the combustion chamber. This
The gas generating agent burns to generate high-temperature, high-pressure gas.
Coolant / filter 104 is generated in the combustion chamber
Combustion gas pressure desired for normal combustion of gas generant
It works to maintain a new value. This combustion gas
Coolant while passing through the coolant / filter 104
Cooled by the cooling function of the
Combustion residue is collected by the runt / filter collection function
The cooled and purified combustion gas passes through a gas passage 128.
Through the gas outlet 107 and into the airbag (not shown).
Flows into. This inflates the airbag and secures it with the occupants.
Cushions between different structures to protect occupants from impact.
Protect. FIG. 13 shows the coolant / filter of the present invention.
FIG. 10 in which another example is applied to a gas generator for an airbag,
It is the elements on larger scale of the same figure. [0098] The coolant / filter 104 '
The central tubular member 114 is provided so as to surround the generator 125.
Define an annular chamber, i.e., a combustion chamber 122.
You. This coolant / filter 104 'is made of stainless steel.
Steel flat knitted wire mesh in the radial direction
Compression in the direction. This coolant / filter 10
4 ', the loop stitch was crushed in each layer
It is undulating and forms a layer in the radial direction.
Therefore, the void structure of the coolant / filter becomes complicated.
Thus, this coolant has an excellent collecting effect. Cooler
Consisting of a laminated wire mesh outside the
An outer layer 129 is formed. The outer layer 129 is made of gas
Coolant / filter 1 by gas pressure when generator is activated
04 'does not bulge and block the gap 128
In addition, means for suppressing coolant / filter swelling
As well as a cooling function. This
The combustion chamber 122 is formed by the coolant / filter 104 '.
The combustion gas generated in the combustion chamber is
And the combustion residues are collected. The outer layer 12
9 in place of the coolant /
It may surround the periphery of the filter 104 '. Wire
So that the belt means is at the joint of the two flanges
Then, the change in the annular cross-sectional area of the gap 128 is minimized.
It is. Suppress coolant / filter swelling
The restraining means can be composed of a porous cylindrical body. porous
14 and 15 show examples of (perforated) cylindrical bodies.
Shown in This porous cylinder is used for coolant / filter
Having inner peripheral surfaces 330 and 331 fitted to the outer peripheral surface;
Numerous through holes 3 uniformly distributed throughout 332 and 333
34, 335. The through hole 334 is a small round hole
, The through hole 335 is a large-diameter square hole
You. These swelling suppression means are provided by the coolant / filter 1.
It does not affect the pressure loss of 04 '. Ie it
Have a smaller pressure drop than the coolant / filter means
Have. FIG. 16 shows gas generation for an air bag according to the present invention.
It is sectional drawing of another example of a container. This gas generator is
C consisting of a user shell 401 and a closure shell 402
The housing 403 and the accommodation space in the housing 403
Igniting means 404 and the ignition
The chemicals 405 and they are ignited to generate combustion gas
Gas generating means, that is, a solid gas generating agent 406;
Combustion containing gas generant 406 together with the housing 403
Filter means defining the chamber 428, ie coolant
/ Filter 407 and this coolant / filter
407 and the inner peripheral wall 408 of the housing 403
And a gap 409 to be formed. The diffuser shell 401 is made of stainless steel.
A steel plate is formed by pressing, and a circular portion 412 is formed.
A peripheral wall portion 410 formed on an outer peripheral portion of the circular portion 412,
A radially outwardly extending flange is attached to the tip of the peripheral wall 410.
It has a flange 419. In this embodiment, the peripheral wall portion 410
Has 18 gas outlets 411 of 3mm diameter in the circumferential direction.
It is arranged at a distance. This diffuser shell 401
Protrudes outward by a step at the center of the circular portion 412
The protruding circular portion 413 is formed.
3 is to provide rigidity to the housing, especially to its ceiling.
In addition, the volume of the accommodation space is increased. This protruding circle
A charge 405 is accommodated between the unit 413 and the igniter 404.
A transfer charge container 453 is sandwiched. The closure shell 402 is made of stainless steel.
The plate is formed by pressing, and a circular portion 430 and this
A central hole 415 formed at the center of the circular
A peripheral wall portion 447 formed on the outer peripheral portion of the circular portion 430;
A flange extending outward in the radial direction is provided at the end of the peripheral wall 447.
It has a flange portion 420. The central hole 415 is the hole
The edge portion has an axial bent portion 414. This central hole 4
15 and a central tubular member 416 is arranged.
One end side end surface 417 of the cylindrical member 416 is an end surface of the bent portion 414
It is flush with 418. [0103] Diffuser shell 401 and closure
The well 402 has flange portions 419 and 420, respectively.
The flanges 419 and 420 are overlapped
Laser welding 421, the two are joined together
403 is formed. Further, the flange of the diffuser shell
The part 419 is for mounting the pad module as shown in FIG.
It has a mounting part 410A for fitting. The mounting portion 410A is
It is arranged at 90 degree intervals in the side direction and has a screw hole 410B
You. The outline of the flange 420 on the closure shell is a dotted line
Indicated by The central cylindrical member 416 is a stainless steel member having both ends opened.
Made of stainless steel tube, the other end side is electron beam welding 422
Is fixed to the projecting circular portion 413 of the diffuser shell.
Have been. The ignition means is accommodated inside the central cylindrical member 416.
A chamber 423 is formed.
An igniter 4 activated by a signal from a sensor (not shown)
04 and the transfer charge 40 ignited by the igniter 404
5 is provided. this
The central tubular member 416 has an igniter holding member 424,
Holding member 424 restricts axial movement of igniter 404
The inward flange 425 and the igniter
A peripheral wall portion 426 fixed to the inner peripheral surface of the member 416;
Between the inward flange 425 and the igniter
And a caulking portion 427 fixed in the axial direction. During ~
The central cylinder member 416 also has a through hole 454 at the other end.
doing. In the case of the present embodiment, a through hole having a diameter of 2.5 mm is formed.
Six are arranged at equal intervals in the circumferential direction. The central cylindrical member 416 has a thickness of 1.2 to 2.0.
mm stainless steel sheet,
And may have an outer diameter of 17-20 mm. this
Such a welded tube is a UO press method (a plate is formed into a U shape).
After that, it is formed into an O shape and the seam is welded) or ERW
Tube method (The plate is formed into a circular shape and large pressure is applied to the seam.
(Weld current with resistance heat)
Can be [0107] The coolant / filter 407
Around the central cylindrical member 416.
The enclosure defines an annular chamber or combustion chamber 428.
This coolant / filter 407 is made of stainless steel flat
Knitted wire mesh is piled up in the radial direction and compressed in the radial and axial directions
Do it. This coolant / filter 407 is applied to each layer.
In a shape like a crushed loop stitch
And it is layered in the radial direction. Therefore, cooler
The air gap structure of the part / filter becomes complicated,
The filter / filter has an excellent collection effect. Coolant/
Outer layer 429 made of a laminated wire mesh outside filter 407
Are formed. This outer layer 429 is used for gas generator operation.
Coolant / filter 407 sometimes swells due to gas pressure
So that it does not block the narrow gap 409
Function as a suppression means for suppressing the expansion of the
You. The coolant / filter 407 allows the combustion chamber 4
28 is defined, and the combustion gas generated in the combustion chamber is
It is cooled and the combustion residues are collected. In addition, outside the above
Cooler by wire or belt means instead of layer 429
May also surround the interface / filter 407. Wai
The belt means is at the joint of the two flanges
The change in the cross-sectional area of the gas passage due to the gap is minimized.
Can be suppressed. Suppression for Preventing Coolant / Filter Swelling
The stopping means is formed by using the perforated (par) described above with reference to FIGS.
(Folated) cylindrical body. Referring further to FIG.
The circumferentially inclined portion 4 surrounding the circular portion 430 of the shell.
31 is formed, and the inclined portion 431 is provided with a coolant / foil.
Functions as movement prevention means for preventing movement of filter 407
And the outer peripheral wall 408 of the housing and the coolant /
As a means for forming a gap 409 between the filters 407,
It is functioning. The solid gas generating agent 406 is placed in the combustion chamber 428.
And movement for preventing movement of the coolant / filter 407
Blocking means, coolant / filter support 43
2 and a plate member 433 are provided. Moth
The water generating agent 406 has a hollow cylindrical shape, and
Therefore, combustion occurs on the outer and inner surfaces, and as the combustion proceeds
The surface area of the entire gas generant does not change much.
Have a point. Coolant / filter support member 432
Is disposed to face the flame through hole 454 of the ignition means.
Flameproof covering the inner peripheral surface of coolant / filter 407
The plate portion 434 and the flameproof plate portion 434 are integrally formed,
Circular with central hole 435 that fits into central tubular member 416
It comprises a part 436. The flameproof plate 434 is
Cooler against the flame ejected toward the filter / filter 407
Coolant / filter protector to protect components / filters
Noh, the direction of the flaming flame is changed and the flame becomes
It has a combustion promoting function to make it rotate sufficiently. Also,
The coolant / filter support member 432 of the gas generator
Acts as coolant / filter positioning during assembly
And the inner surface 43 of the housing when the gas generator is activated.
7 and coolant / filter end face 438.
It also has a short path prevention function to prevent short paths.
You. These gaps are located on the inner wall of the inflator housing.
And may be formed by the internal pressure of the combustion gas impinging on it. play
The supporting member 433 has a thickness of 0.5 to 0.5
It is made of a 1.0 mm stainless steel plate.
6 and a central hole 439 that fits into the filling gas generating agent.
Part 450 which suppresses the movement of the gas generating agent by
Coolant / filter 40 formed integrally with profile 450
7 comprises a peripheral wall portion 451 which is in contact with the inner peripheral surface. This
Of the central cylindrical member 41 by the elastic force.
6 and the coolant / filter 407,
At the end of the component / filter opposite to the end 438
To prevent short path of combustion gas. Also this
The rate member 433 also serves as a welding protection plate during welding.
It is functioning. The outer peripheral wall 408 of the housing and the coolant
/ A gap 409 is formed between the outer layers 429 of the filter.
You. This gap 409 allows the coolant / filter 407
Is formed around the periphery of the gas passage.
In this embodiment, the radial cross-sectional area of the gas passage is constant.
However, for example, the coolant / filter is formed in a conical shape.
Radial direction of gas passage as approaching gas outlet 411
The cross-sectional area can be increased. in this case,
The radial cross-sectional area of the gas passage can be averaged.
You. Also, instead of the inclined portion 431, a coolant /
Abuts the outer peripheral wall 408 of the housing on the end of the filter 407
Projections that provide coolant / fill
A movement blocking function for blocking the movement of the
Gap between the outer peripheral wall 8 and the coolant / filter 407
It can also have the function of forming. Half of gas passage
The area St in the radial cross section is determined by the diffuser shell.
Larger than the sum At of the opening area S of each gas outlet 411
It is bad. Of the gas passage around the coolant / filter
Due to its presence, the combustion gas travels towards the gas passage and the combustion gas
The air passes through the entire area of the coolant / filter,
Effective use of coolant / filter and effective use of combustion gas
Cooling and purification are achieved. Cooled and purified combustion gas
Passes through the gas passage 409 to form a diffuser shell.
The gas outlet 411 is reached. Moisture enters the housing 403 from outside.
Aluminum tape 452 to prevent
The gas outlet 411 of the diffuser shell is more closed
I have. In the gas generator thus constructed,
When a sensor (not shown) senses an impact,
Is sent to the igniter 404, and the igniter 404 is activated.
The transfer charge 405 in the transfer charge container 453 is ignited by
This produces hot flames. This flame is injected from the through hole 454.
And ignite the gas generating agent 406 near the through hole 454.
At the same time, the course is bent by the flameproof plate portion 434 and the combustion chamber
Ignite the lower gas generant. This allows the gas generant to
Combustion produces high-temperature, high-pressure gas, and this combustion gas
Passes through the entire area of the coolant / filter 407,
The cooling residue is effectively cooled and the combustion residue is collected,
The converted combustion gas passes through the gas passage (gap 409),
Breaking the wall of the aluminum tape 452 and breaking the gas outlet 41
1 and flows into an airbag (not shown).
This causes the airbag to inflate, creating a gap between the occupant and rigid structures.
A cushion is formed to protect the occupant from impact. When assembling the gas generator shown in FIG.
The fuser shell 401 is connected to the central cylindrical member 416 and its projection.
Joining with the circular portion 413 as the bottom, the plate member 432 is
Fits on the central tubular member 416, coolant / filter
407 is disposed on the outside of the peripheral wall of the plate member 432
Position coolant / filter 407 and cool
Fill the solid gas generating agent 406 inside the filter / filter
Then, the plate member 433 is disposed on the gas generating agent 406.
You. Next, the central hole 415 of the closure shell is the central cylindrical member.
416 on the closure shell flange 420 and
So that the flanges 419 of the diffuser shell overlap
I will Stacked flanges at 421 and 444
Laser welding, diffuser shell 401 and
Weld the closure shell 402 together and
And the center tube member 416 are welded together. last
In the process, the transfer charge container 453 and the igniter 404
The igniter holding member 41 is inserted into the center tube member 416 and then
2 are swaged to fix them. FIG. 17 shows an airbag according to another embodiment of the present invention.
FIG. 2 is a cross-sectional view of a gas generator for blasting. This gas generator is
The fuser shell 461 and the closure shell 462
Housing 463 and accommodation in the housing 463
An igniter 464 disposed in the space;
Solid gas generator 46 which is ignited to generate combustion gas
6 and a combustion chamber 484 containing this gas generating agent 466.
The defining coolant / filter 467 and this coolant
Outside the housing / 463 and the coolant / filter 467
And a gap 469 formed between the peripheral walls 468. [0116] The diffuser shell 461 is made of stainless steel.
A steel plate is formed by pressing, and a circular portion 478 is formed.
Has a peripheral wall portion 476 formed on the outer peripheral portion thereof. Surrounding wall
The part 476 has a plurality of gas outlets 477 at equal intervals in the circumferential direction.
It is arranged individually. This diffuser shell 461 is
A plurality of radial directions radially arranged on the circular portion 478
It has a rib 479. These ribs 479
Provides rigidity to the circular portion 478 of the diffuser shell,
This forms a circular portion 478 that forms the ceiling of the housing.
Are prevented from being deformed by gas pressure. Further, as shown in FIG.
479 is a housing, in particular, a die forming the ceiling thereof.
The rigidity of the fuser shell circular portion 478 is provided,
The housing is prevented from being deformed by gas pressure.
The diffuser shell flange 486 is shown in FIG.
As shown in FIG.
7. The mounting portion 497 is connected to the flange portion 48
6 are arranged at 90 ° intervals in the circumferential direction.
It has a mounting hole 476B for a dowel bolt. [0118] The closure shell 462 is made of stainless steel.
A plate is formed by pressing, and a circular portion 471 and the circular portion 471 are formed.
It has a peripheral wall part 472 formed on the outer peripheral part. Circular part
A recess 473 is formed at the center of the recess 471.
A central hole 474 is formed in the central portion of 3. This center
The hole 474 has an axial bent portion 475 at the edge of the hole.
The bent portion 475 is formed inside the fitting portion 480 of the igniter.
Peripheral surface 481 and end surface 48 to which igniter flange 482 is locked
Three. The inner peripheral surface 481 of the axially bent portion 475 is
A relatively large sealing surface is ensured. To ensure airtightness
In addition, sealing between the body 480 of the igniter and the inner peripheral surface 481
Material can be filled and the igniter collar 482 and end
Welding can be performed between surfaces 483. Ignition collar 4
The end face 483 to which the pin 82 is locked is the gas pressure inside the combustion chamber 484.
Prevents the igniter 464 from slipping out. Recess
473 provides rigidity to the circular portion 471 of the closure shell.
And the bottom surface 485 of the connector of the igniter is
1 at a position inside the outer surface. [0119] The diffuser shell 461 has a peripheral wall portion.
A flange portion 4 extending radially outward at a tip end of the 476
86 and the closure shell 462 also has a peripheral wall portion.
Flange portion 4 extending radially outward at the tip of 472
87. These flanges 486, 487
At the center of the housing in the axial direction,
The weld 488 is welded and the diffuser shell 461 is
The manager shells 462 are joined together. These francs
The joints 486 and 487 provide rigidity to the outer peripheral wall of the housing.
Besides, the housing is prevented from being deformed by gas pressure. The igniter 464 is provided by a sensor (not shown).
Consists of a conventional electric igniter activated by the signal of
You. Electric igniter has simple structure without mechanical mechanism
Smaller and lighter than mechanical igniters.
Good. This igniter 464 (output: 10 cc closed pressure capacity)
300 to 1500 psi in the vessel)
Nothing similar to container 453 is attached. This is gas
This is because the ignitability and combustibility of the generator 466 are good. That is, the gas combustion agent 466 has a temperature of 330 ° C. or less.
Has a decomposition ignition temperature and a combustion temperature of 2000K or more
I do. The gas generating agent 466 has a hollow cylindrical body.
Due to the shape of the combustion, combustion occurs on the outer and inner surfaces,
The surface area of the entire gas generant does not change much as it goes
It has the advantage that. The coolant / filter 467 is provided in the central hole 4
74 and concentric with housing 463
484. This coolant / filter 46
7 is a stainless steel flat knit wire mesh superposed in the radial direction,
It is compressed radially and axially. This coolant / f
When the combustion chamber 484 is defined by the filter 467,
The combustion gas generated in the combustion chamber is cooled,
Residue is collected. This coolant / filter 467
An outer layer 489 made of a laminated wire mesh is formed on the outside.
You. This outer layer 489 reinforces the coolant / filter
And prevent swelling. Surrounding the circular portion 471 of the closure shell
An inclined portion 490 is formed in the circumferential direction.
0 indicates the positioning or transfer of the coolant / filter 467.
Function as a means to prevent movement
Between outer peripheral wall 468 and outer layer 489 of coolant / filter
Also functions as a means for forming a gap 469 in the gap. The solid gas generating agent 466 is placed in the combustion chamber 484.
A rate member 491 is provided. Gas generating agent 466
Is directly charged into the space inside the combustion chamber,
Adjacent to one side of coolant / filter 467
Plate member closing the opening between the end and the shell portion 478
The movement is regulated by the circular portion 492 of the. Pre
The heating member 491 is provided with the circular portion 492 and the coolant /
The inner peripheral surface of the filter 467 is in contact with the inner peripheral surface at one end thereof.
Peripheral wall portion 493 integral with the circular portion 492
have. This plate member 491 allows the cooler
End face 494 and diffuser shell
Prevents a short path of combustion gas between the inner surfaces of the circular portion 478
Is done. Plate member 491 to prevent short path
If present, fit the coolant / filter housing
The fixing may be performed only on the end face 495 on the opposite side. The outer peripheral wall 468 of the housing and the coolant
/ A gap 469 is formed between the outer layers 489 of the filter.
This gap 469 allows the coolant / filter 467
Is formed around the gas passage with an annular cross section in the radial direction.
You. As in the gas generator shown in FIG.
The area in the cross section in the direction
The opening area of the discharge port 477 is larger than the total area.
You. Spacer 4 provided around coolant / filter
89 indicates that the combustion gas is the entire coolant / filter 467
Go through the area towards the gas passage 469, where
Improved flow uniformity and coolant / filter
-467 effective use and effective cooling and purification of combustion gas
Achieved. The cooled and purified combustion gas passes through the gas
Diffuser shell gas outlet 47 through channel 469
Reaches 7. Moisture enters the housing 463 from outside
Aluminum tape 496 to prevent
The gas outlet 477 of the diffuser shell is a housing
It is closed from the inside. When assembling the gas generator, a claw
Closure shell with round part 471 of Jaschel bottom
462, and an igniter 464 in the center hole 474
I do. Next, a coolant / filter 467 is provided.
Is filled with a solid gas generating agent 466, and further
A plate member 491 is provided. Finally, the diffuser
Close the flange 486 of the shell to the flange of the closure shell.
Laser welding 488 is performed on the
Fuser shell 461 and closure shell 462
You. The gas generator constructed as described above
When a sensor (not shown) senses an impact,
Is sent to the igniter 464, which activates the igniter 464.
To ignite the gas generating agent 466 in the combustion chamber 484
You. As a result, the gas generating agent burns and the
And this combustion gas is supplied to the coolant / filter 467.
Enters the coolant / filter 467 from the entire area of
Cooled while passing through the runt / filter 467
Burning residue is collected. The cooled and purified combustion gas is
Through the gas passage formed by the gap 469,
Breaks the wall of the multi-tape 496 and blows out from the gas outlet 477
Then, it flows into an airbag (not shown). This
The airbag inflates to create a cushion between the occupant and rigid structures.
To protect the occupants from impact. In the embodiment shown in FIGS.
Fuser shell and closure shell together airbag
Form the housing of the gas generator for
The shell and closure shell each have a thickness of 1.2
Made of stainless steel of ~ 3.0mm, 45 ~ 75mm,
Or more preferably having an outer diameter of 50-70 mm
Can be. Each diffuser shell and closure shell
Seed welding methods such as electron beam welding, laser welding, TIG
Can be joined by welding, projection welding, etc.
Wear. For materials of diffuser shell and closure shell
Therefore, instead of stainless steel plate, nickel plating is applied to steel plate
You may use what was given. Diffuser shell
Outlet is 1.5 to 4.5 mm in diameter, and a total of 16
Up to 24 pieces can be arranged in the circumferential direction. Also, Hauge
Height (from the top of the diffuser shell to the closure
(The height from the bottom of the shell) to 25 to 40 mm
Is preferred. FIG. 18 is an illustration similar to that of FIG.
Another example of a gas generator for a bag is shown and a diffuser
Aluminum shell 401 'and closure shell 402'
An example of forming by casting using a metal alloy is shown. Diff
The fuser shell 401 'has a circular portion 412' and one
A central cylindrical portion 416 'formed on the body and a circular portion 412'
A peripheral wall portion 410 'formed on the outer peripheral portion and a half
It has a flange portion 419 'extending radially outward.
You. Further, the closure shell 402 ′ is
0 ', a central hole 415' formed at the center thereof,
A peripheral wall portion 447 'formed on the outer peripheral portion of the circular portion 430'
And extends radially outward at the tip of the peripheral wall 447 '.
It has a flange portion 420 '. Central hole 415 '
Is fitted on the outer periphery of the central cylindrical portion 416 ', and the diffuser
Shell flange 419 'and closure shell flange
And the laser welding 42
1 'and the diffuser shell and closure shell
Joined to form a housing 403 '. This embodiment is similar to the gas generator shown in FIG.
The example gas generator also has a coolant / filter 4 in it.
07 'and a diffuser shell
Defined by a central tubular member 416 'projecting from 401'.
And an ignition means accommodating chamber 423 '. Gap 409 '
Between the sealant / filter 407 'and the housing
Can be The same members as those in FIG. 16 are denoted by the same reference numerals.
And their description is omitted. A gas generator for an air bag shown in FIG.
The closure shell to the diffuser shell
It is welded to form a housing. Together
Et al., Disclosed in U.S. Pat.
Contact can also be used instead of laser welding. FIG. 19 is similar to that shown in FIG.
Another example of a gas generator for an air bag is shown, and a diffuser is shown.
Shell 461 'and closure shell 462' are aluminum
It is formed by casting using an aluminum alloy. Diffuse
The shell 461 'has a circular portion 478' and an outer peripheral portion.
The peripheral wall 476 'to be formed and its tip end
It has a flange portion 486 'extending to the side. Claw
Jaschel 462 'has a circular portion 471' and an outer peripheral portion thereof.
The peripheral wall portion 472 'formed at
It has an outwardly extending flange portion 487 '. Round
A central hole 474 'is formed at the center of the portion 471'.
You. The body 480 of the igniter 464 is inserted into the central hole 474 '.
And the collar 482 of the igniter 464 is closed.
It is locked to the inner surface 497 of the well circular portion 471 '. Day
Fuser shell flange 486 'and closure shell
Laser flanges 487 '
488 'is connected to the diffuser shell 461'
The manager shell 462 ′ is joined to the housing 4
63 '. The same members as those in FIG.
The description is omitted by attaching one symbol. FIG. 20 shows an air bag device suitable for a passenger seat.
FIG. 21 is a cross-sectional view of the gas generator of the present invention.
The generator has a plurality of gas exhausts arranged in the circumferential and axial directions.
A cylindrical portion 501 having an outlet 500;
01 from the side walls 502 and 503 provided at both ends.
Having a housing 504. This housing 5
A transmission tube 505 is provided at the center of
Disk-shaped gas is fitted to the outer surface of the transfer tube 505
A large number of generators 506 are juxtaposed.
A coolant / filter 507 is provided. One side
Ignition consisting of transfer charge 508 and igniter 509 on wall 502
Means are provided, the ignition means being located within the transfer tube 505.
Is housed in The other side wall 503 is for fixing
The bolt 510 is fixed. Fire tube 505
Has many openings 511 through which the flame of the explosive charge 508 gushes out.
In addition, these openings 511 are uniformly distributed on the tube wall of the transfer tube.
It is scattered and drilled. On the inner surface of the housing 504,
At least in the area where the outlet 500 is formed, aluminum
The tape 524 is fixed. This aluminum
The tape 524 has a housing
The air outlet 500 is closed airtight so that it does not enter the housing.
doing. The right end of the drawing of the coolant / filter 507
Plate member 512 on the left side and a plate part on the left end
Materials 513 are provided respectively. Plate member 51
2 is a right end opening 51 of the coolant / filter 507.
4 and a circular part 515, which is formed integrally with the circular part 515.
Abuts against the inner peripheral surface 516 of the coolant / filter
And a peripheral wall portion 517. The circular portion 515 is
A central hole 518 fitted to the outer peripheral surface of the
Have. Further, the plate member 513 is also a plate member.
Circular portion 521 and peripheral wall portion 52 configured similarly to 512
2 and a central hole 523. These plate parts
The materials 512 and 513 are provided with a transfer tube for radial movement.
505 is fixed to the cooler when assembling the gas generator.
Function as a positioning means for the
The coolant / filter 507 is moved due to
It functions as a movement prevention means to prevent movement.
When the gas generator is activated, the inner surface 519 of the housing is cooled.
Short path of combustion gas between the runt / filter end face 520
It also functions as short-path prevention means for preventing short circuit.
Housing cylindrical part 501, coolant / filter
A gap 525 is formed between 507. This gap 52
5 Radial around coolant / filter 507
A gas passage having an annular cross section is formed. Half of this gas passage
The area St in the radial cross section is determined by the gas discharge of the cylindrical portion.
The total area At of the opening area S of the mouth 500 is set to be larger than At.
You. Due to the presence of the gap 525, the combustion gas is cooled.
Through the entire area of the
Effective use of coolant and effective cooling and purification of combustion gas
Is achieved. The cooled and purified combustion gas is
Through the gas passage to the gas outlet 500 of the cylindrical portion. When an impact is detected by the sensor, the signal is ignited.
Is sent to the igniter 509, and the igniter 509 is activated.
The transfer charge 508 is ignited to generate a high-temperature flame. this
The flame blows out from the opening 511 of the transfer tube 505.
You. The spouted flame points to the gas generating agent 506 in the open area.
To fire. As a result, the gas generating agent 506 burns and
Generates high pressure combustion gases. This combustion gas is
Pass through the entire area of the
And the combustion residue was collected and cooled and purified.
The combustion gas passes through the gas passage (gap 525) and passes through the aluminum passage.
Break through the wall of the tape 524
And flows into an airbag (not shown). This
Airbag inflates, causing a crush between the occupant and rigid structures.
To protect the occupants from impact. In the gas generator of FIGS. 16 and 17,
For example, the total surface area of the solid gas generating agent 406 is A,
Total table of the opening area of each gas outlet 411 of the fuser shell
When the area is At, the value A / At of the ratio of A to At is:
A / At = 100-3 for 20-50 g of gas generating agent
00 is set. By setting this surface area ratio, the gas
The combustion speed of the generator is set to a speed suitable for driver airbags.
Adjusted when the gas generating agent provided in the gas generator is desired.
It guarantees complete combustion within the interval. In the gas generator for an air bag shown in FIG.
Thus, for example, the total surface area of each solid gas generating agent 506 is calculated as
A, total surface of the opening area of each gas outlet 500 of the cylindrical portion
When the product is At, 40 to 120 g of the gas generating agent
The value of the ratio of A to At, A / At, is A / At = 80 to
240 is set. By setting this surface area ratio, gas
The burning rate of the generator is set to a speed suitable for a passenger airbag
Adjusted when the gas generating agent provided in the gas generator is desired.
It can be completely burned in the air. On the other hand,
Appropriate ratios for bumpy airbags are notwithstanding similar constructions
The gas generating agent is 10 to 25 g, and 250 to 3600.
You. FIG. 35 shows a state suitable for being arranged on the passenger side.
1 shows a configuration diagram of an airbag device. The airbag shown in this figure
The gas generator is a gas generator suitable for a passenger airbag device.
80 "and airbag 84" housed in module case 83 "
In addition, the gas generator 80 "includes a control unit 8
An impact sensor 81 "is connected via 2". In this figure
The airbag device shown is the dashboard on the passenger seat side (illustrated
Without. ). A preferred embodiment of the present invention will be described.
The gas generator 80 "in FIG. 35 is particularly based on FIG.
Ignition-type gas generation, such as the gas generator described
In addition, this gas generator has a shaft
A gas generator that is long in the
Use a mechanical sensor if it has a gas outlet
The mechanical ignition type gas generator used may be used. The airbag 84 "is made of nylon (for example, nylon
Ron 66) or the passenger side using polyester etc.
Large enough to ensure the safety of the occupants
You. The air bag 84 "has its bag opening connected to the module case 8
Attach to 3 ”opening side
In the case 83 ". The module case 83 "is made of, for example, polyurethane.
At least the gas generator 80 "and air
The bag 84 "is sized to accommodate the bag."
Gas generation with airbag 84 "in this module case 83"
And a pad module that accommodates the
Module in the dashboard on the passenger seat side.
Where to attach. The impact sensor 81 "in the drawing and the control
The driver unit 82 "is the driver's seat described with reference to FIG.
Used in an airbag device suitable for placement on the side
Is the same as This airbag device is used when an automobile crashes.
The controller receives a signal from the shock sensor 81 "
Roll unit 82 "starts calculation and responds to the calculation result.
Activate the gas generator 80 "to eject the combustion gas
You. The combustion gas ejected by the operation of the gas generator 80 "
Air flows into the airbag 84 ", thereby
4 "bulges out of module case 83"
Form a cushion between the vehicle and the occupant to absorb impact. FIG. 23 shows a mechanical system for sensing a shock.
This is a mechanically-ignited gas generator that uses a
Mechanically ignited gas generator shaped for seating
Is shown. The mechanical ignition type gas generator shown in FIG.
Diffuser shell having a plurality of gas outlets 1511 in the direction
1501 and a closure shell 1502 having a central hole 1513
Are joined to form a housing. Joint of both shells
Means various welding methods such as plasma welding, friction welding,
Welding, electron beam welding, laser welding, TIG welding
It can be performed by contact or the like. Inside this housing,
A cylindrical partition 1503 arranged concentrically with the central hole 1513
The interior of the partition 1503 is ignited
The apparatus housing chamber 1504 and the outside are combustion chambers 1505. The ignition
A transfer charge 1508 and a mechanical sensor
An ignition device including the combustion chamber 1505 is accommodated in the combustion chamber 1505.
Will be explained with reference to other drawings (FIGS. 1, 7, 10, 16).
Gas generating agent 1506, coolant / filter 1507, cooler
Port support member 1509, ring body 1510, plate member 1512,
Other members suitable for the operation of the gas generator are appropriately stored
Is done. Also, coolant / filter is secured outside 1507
A suitable structure such as a gap 1514 can be adopted as appropriate. In the gas generator shown in FIG.
The ignition device for igniting 06, for example, as shown in FIG.
Launching the firing pin 1551 by detecting the impact exclusively by a mechanical mechanism
Mechanical sensor 1550, and fired from the mechanical sensor 1550
Detonator 1515 ignited and burned by being pierced by the firing pin 1551
Ignites and burns with the flame that the primer 1515 burns, and generates gas.
Combustion agent 1508 that burns raw material 1506
it can. The ignition device shown in FIG.
The explosive 1508 and the mechanical
Between the sensor 1550 and the primer 1515 for accommodating and fixing the primer 1515
1516 are provided. The primer piece 1516 is
15 is arranged on the axis of the housing and fixed to the partition 1503.
You. The mechanical sensor 1550 detects the impact by the sensor 1550.
The firing pin 1551 that fires when piercing the primer 1515
As shown in FIG. This primer
1516 contains the location to contain the primer 1515 and the charge 1508.
A through hole 1517 communicating with the place to accommodate is drilled,
One or both of the through holes 1517 have a seal
A loop (not shown) can be attached and closed. Ma
Also, apply sealing tape to the opening where the primer 1515 is stored.
Attached and blocked, it is possible to prevent the primer 1515 from absorbing moisture.
Wear. The impact is sensed by the above-mentioned mechanical mechanism.
As a mechanical sensor 1550 that fires and fires the firing pin 1551,
For example, as shown in FIG.
1552 presses against the cam surface 1554 of the trigger 1553,
Trigger 1553 and firing pin 15 on recess 1555 adjacent to face 1554
Cut out so as to disengage with 51.
A ball 1557 is provided in the ball 1556, and the ball 1557 is
The spring holder pressed upward in the drawing by the coil spring 1558
Mechanical sensor 1550 that locks arm 1560 of ruda 1559
Is mentioned. This mechanical sensor 1550 senses impact
The ball 1557 moves downward in the cylinder 1556,
When the spring holder 1559 is
Move down. This causes the trigger 1553 to rotate,
The engagement between the cam surface 1554 of the trigger 1553 and the firing pin 1551 is released,
The firing pin 1551 has a hollow 1555 by the force of the coil spring 1552.
It jumps out and hits the detonator 1515. This
Mechanical sensor 1550 requires only one piercing mechanism for firing pin 1551
Therefore, compared to a mechanical sensor with two firing pins,
Simplicity of construction and has small volume and reduced weight
ing. FIG. 32 shows a mechanical ignition type gas generator 380 '.
1 shows an airbag device that has been used. The airbag device shown in this figure
The installation is described based on FIG. 23 in the module case 383 '.
Mechanical ignition gas generator 380 'and airbag 384'
Contain. [0149] The module case 383 'is made of, for example, polyurethane.
Formed from a tongue and includes a module cover 385 '
You. The airbag 384 'and the module case 383'
The gas generator 380 'is housed and configured as a pad module.
This pad module is used for automobile steering.
Attached to wheel 387 '. The airbag 384 'is made of nylon (for example, nylon
66) or polyester, etc.
Bag opening surrounds gas generator gas outlet 307 'and folds
It is fixed to the gas generator flange 314 'in the folded state.
ing. As described above, a mechanical ignition type gas generator is used.
In the case of an airbag device using the gas generator 380 ',
8 using an electric ignition type gas generator as shown in FIG.
Unlike shock devices, shock sensors that sense shock and gas
No need for a control unit to control the operation of the generator
Therefore, these arrangements and wiring become unnecessary. This airbag device is provided inside the gas generator 380 '.
Mechanical sensor 381 'accommodated in the vehicle
The gas generator 380 'is activated by sensing the
The combustion gas is spouted from the gas discharge port 307 '. This gas
Flows into the airbag 384 ', which causes the airbag to
Break the joule cover 385 'and bulge out the steering wheel.
Form cushion to absorb shock between Eel 387 'and occupants
To achieve. FIG. 26 shows the gas generating agent 2606 and the coolant / foil.
Perforated basket 2650 between ilta 2607
1 shows a gas generator for an airbag provided with. This gas generation
Vessel is a diffuser shell with multiple gas outlets 2611
2601 and a closure shell 2602 having a central hole 2613
The housing is formed by joining by various welding methods.
You. The inside of the housing is arranged concentrically with the central hole 2613.
Is defined by two or more chambers by a substantially cylindrical partition wall 2603.
The inside of the partition wall 2603 is the ignition device housing chamber 2604, and the outside is the combustion chamber 26.
05. And, in the ignition device accommodation room 2604, other
With the explosive 2608 described based on the drawings (FIGS. 23 to 25)
An ignition device including a mechanical sensor 2612 is housed, and
Inside the baking chamber 2605, the perforation shown in FIGS.
In addition to Ted Basket 2650, other drawings (Figs. 1, 7, 1
Gas generating agent 2606, cooler described based on 0, 16)
Port / filter 2607, coolant support 2609, ring
For operation of body 2610, plate member 2616, and other gas generators
Suitable components are appropriately accommodated and the coolant /
A suitable gap such as a gap 2614 secured outside the filter 2607
Structures can also be employed. This perforated basket 2650
Has a substantially cylindrical shape and its peripheral wall surface 2652 has a circumferential direction and
A plurality of through holes 2651 are formed in the axial direction. This penetration
The holes 2651 are formed regularly or irregularly at predetermined intervals.
And the size of the through hole 2651 depends on the generated gas.
Adjust freely as long as it does not hinder the passage of traffic.
Can be. The perforated basket 2650,
Disposed between gas generant 2606 and coolant / filter 2607
Where the coolant / filter 2607 is exposed
From the entire area, that is, from the flameproof plate portion 2615 of the coolant support member 2609
Is also covering the bottom. The flameproof plate 2615 has a height of 8 to 15 mm
Having, for example, at least 2 mm from the lowest through hole in the partition
The flame from the through hole of the partition wall extends
Prevents contact with filter 2607. Also this perf
Cooled / filtered cooled basket 2650
The same axial center length as 2607 or slightly shorter than it,
The coolant support member 2609 is provided outside the flameproof plate portion 2615.
Coolant / filter 2607 and coolant support member 26
It is also possible to overlap with the flameproof plate part 2615 of 09. FIG. 26 uses a mechanical sensor 2612.
Machine-ignited gas generator with perforated basket
An example using a 2650 is shown in this figure.
The basket 2650 is shown in FIGS. 1, 7, 10, 16, 17, and 19.
It is also possible to apply to a simple electric ignition type gas generator. The gas generator for an air bag shown in FIG.
As with the airbag gas generator shown in FIG.
Diffuser shell 601 'with outlet 611' and central hole 613 '
Housing joined with closure shell 602 '
The inside of the ring is divided into an ignition device housing chamber 604 'and a combustion chamber 605' by a partition wall 603 '.
23 in the ignition device accommodating chamber 604 '.
The transfer charge 608 'and the mechanical sensor 612' described based on
The ignition device including the ignition device shown in FIG.
In addition to the perforated basket shown in FIG.
606 ', coolant / fill described in the drawing
607 ', ring body 610', plate member 609 ', other gas
Suitable members are appropriately accommodated for operation of the generator. Ma
Gap 614 'secured outside of the coolant / filter 607'
Any suitable structure can be adopted as appropriate. This perfore
Basket 650 'is stainless steel and aluminum
Or it can be formed from carbon steel or the like. In this embodiment, the gas generating agent 606 '
Perforator disposed between the runt / filter 607 '
The ted basket 650 'is a gas basket for airbag shown in FIG.
Perforated basket 26
The shape is different from 50, as shown in FIGS.
On a cylindrical peripheral wall 652 'in which a plurality of through holes 651' are formed
A substantially flat circular lid 653 'is integrally formed with the end opening.
You. The lid 653 'is attached to the perforated basket.
The inner surface of the circular part 616 'at the top of the housing where the 650'
The shape can be complementarily engageable. Especially this
In the gas generator shown in the embodiment, the diffuser shell
Cylindrical partition that defines the ignition chamber 604 '
Since 603 'is provided, the perforated
The lid 653 'of the basket 650' has a partition wall 603 'at its center.
Is formed to have an opening 654 'large enough to pass through. In this embodiment, the perforated bar
In the case 650 ', a through hole 65 formed in the peripheral wall 652' is provided.
1 ′ is radially opposite to the through hole 651 ′ formed in the partition wall 652 ′.
It is formed by removing the corresponding part. That is, the basket 650 '
Is the fuel of the explosive 608 'ejected from the through hole 617' of the partition wall 603 '.
Protects coolant / filter 607 'from burning flame
The direction of the flame can be further changed and the combustion chamber 605 '
The gas generating agent 606 'can be sufficiently turned around.
Formed on the peripheral wall 652 'of the perforated basket 650'
Through hole 651 ′ is ejected from the through hole 617 ′ of the partition wall 603 ′.
Remove the spot where the flame from the combustion of the transfer charge 608 'hits and shape
Is done. Desirably, the through hole 651 'of the peripheral wall 652'
Below the point where the flame from the combustion of the medicine 608 'gushes
It is formed at regular intervals. As a result, this perforated
Above the basket 650 ', in particular, a through hole 651' is formed.
Above the location where the coolant / filter 607 'is
Coolant from the flame generated by the combustion of the explosive charge 608 '
Coolant / filter protection to protect the filter / filter 607 '
The function and direction of the flame are changed so that the flame is a gas generating agent 606 '.
It will have a combustion promotion function to make it rotate sufficiently.
You. The punch formed in the perforated basket 650 '
The size of the through hole 651 'is the same as that shown in FIGS.
It can be adjusted appropriately as in the case of the ted basket. FIG. 29 uses a mechanical sensor 612 '.
Machine-ignited gas generator with perforated basket
An example using a perforated
The baskets are fitted with electric clothes as shown in Figures 1, 7, 10, 16, 17, and 19.
It is also possible to apply to a fire gas generator. The gas generator for an air bag shown in FIG.
The coolant / filter 750 housed in the housing
It is characterized by being formed of two or more layers. This mo
The gas generator has a diffuser shell with a gas outlet 711.
701 and a closure shell 702 having a central hole 713.
The interior of the joined housing is separated by a partition
The chamber is divided into two chambers, a chamber 704 and a combustion chamber 705, and accommodates the ignition device.
In the chamber 704, the transfer charge 708 and the mechanical sensor described in FIG.
715 is housed in the combustion chamber 705 as shown in FIG.
Coolant / foil formed of two or more layers as shown in FIG.
In addition to the filter 750, the gas generating agent 706 described in other figures,
Coolant support member 709, ring body 710, plate member 71
2, other suitable members for the operation of the gas generator
To accommodate. Also, make sure that the outside of the coolant / filter 750 is
It is also possible to adopt a suitable structure such as the maintained gap 714 as appropriate.
it can. The coolant formed by the two or more layers /
The filter 750 is, for example, an inner
Layer 751 and outer layer 752 with different densities or materials
can do. Inner layer 751 and outer layer 752 are different
When forming a coolant / filter 750 with different density
Forms the inner layer 751 with a wire mesh with a coarse pore structure,
Form the outer layer 752 with a wire mesh with a fine void structure,
Both layers can be formed in radial combination.
Gold with a fine void structure used for this inner layer 751
The net is formed by compression molding an annular wire mesh laminate in a mold.
A completed one can be used. In this embodiment, FIG.
The above configuration is applied to the mechanical ignition type gas generator using the sensor 715.
An example of housing a filter / filter is shown.
In addition, electric ignition type gas as shown in Fig.1,7,10,16,17,19
Apply coolant / filter of the above configuration to generator
You can also. The gas generator for an air bag shown in FIG.
It is similar to the gas generator shown in FIG.
6 and coolant / filter 807 shown in FIGS.
Gas generation using a perforated basket 850
It is a living creature. However, the gas generator shown in FIG.
In contrast to the gas generator shown in
Using a perforated basket 850
You. This gas generator has a plurality of gas outlets 811.
Diffuser shell 801 having a central hole 813
The Roger shell 802 is connected by one of various welding methods.
Together, they form a housing. Inside the housing is front
A substantially cylindrical partition wall 803 arranged concentrically with the central hole 813
And the inside of the partition 803 accommodates the ignition device
A chamber 804 and a combustion chamber 805 on the outside. And the ignition device
In the chamber 804, there is a transfer charge 808 described based on other drawings.
And an igniter including an igniter 812. In the combustion chamber 805, FIGS.
In addition to the perforated basket 850 shown,
Generator 806, coolant / filter 807, coolant support
Holding member 809, ring body 810, plate member 816, other
Suitable components are accommodated for operation of the generator. Also
Provide gap 814 outside coolant / filter 807
Can be. The perforated basket 850 is substantially
It has a cylindrical shape and its peripheral wall 852 has a circumferential direction and an axial direction.
Are formed with a plurality of through holes 851. This through hole 851
Must be formed regularly or irregularly at predetermined intervals
And the size of the through hole 851 is determined by the passage of the generated gas.
Can be adjusted freely within a range that does not interfere with
Wear. The perforated basket 850 is
Disposed between the crude agent 806 and the coolant / filter 807,
All areas where the coolant / filter 807 is exposed, immediately
Cover the lower part of the coolant support member 809 below the flameproof plate 815.
ing. Also this perforated basket 850
Is the same axial length as the coolant / filter 807 or
The coolant support member 809
The coolant / filter 807 is installed outside the flameproof plate 815.
And the flameproof plate 815 of the coolant support member 809
It is also possible. The perforated basket 850
Applies to the mechanical ignition type gas generator as shown in FIG.
You can also. The gas generator for an air bag shown in FIG.
It is similar to the gas generator shown in FIG.
Between FIG. 40 and FIG. 41 between
Gas with perforated basket 850 'shown
Generator. However, the gas generator shown in FIG.
In contrast to the gas generator shown in
Using a perforated basket 850 'for greige
I have. This gas generator is an air bag shown in FIG.
As with the gas generator for gas, a gas outlet 811 '
Closure with fuser shell 801 'and central hole 813'
The inside of the housing that is joined to the
An ignition device housing chamber 804 'and a combustion chamber 805' are defined.
Ignition device accommodation room 804 'was described based on other drawings
An ignition device including a transfer charge 808 ′ and an igniter 812 ′ is housed,
Inside the combustion chamber 805 ', the perforated
Gas basket 806 ', coolant /
Filter 807 ', ring body 810', plate member 809 ', etc.
When operating the gas generator, suitable members are appropriately stored.
You. A gap 814 'is provided outside the coolant / filter 807'.
It is also possible to open. In this embodiment, the gas generating agent 806 '
Perforator disposed between the runt / filter 807 '
Ted basket 850 'is a gas for airbag shown in FIG.
Perforated basket 850 used for generator
The shape is different from that shown in FIGS. 40 and 41.
The upper end of the cylindrical peripheral wall 852 'in which the through hole 851' of
A substantially flat circular lid 853 'is formed integrally with the mouth.
The lid 853 'is attached to the perforated basket 850'.
Complements the inner surface of the circular section 816 'at the top of the housing
It can be made into a shape that can be engaged with the outside. Especially this practice
In the gas generator shown in the example, the diffuser shell 80
A cylindrical partition wall 803 'defining an ignition device accommodation chamber 804' in 1 '
Is provided, the perforated bus
The partition 803 'is inserted in the center of the lid 853' of the bracket 850 '.
An opening 854 'sized to pass through is formed. The perforated bar in this embodiment
In the case 850 ', a through hole 85 formed in the peripheral wall 852' is provided.
1 'is radially aligned with the through hole 851' formed in the partition 852 '.
It is formed by removing the corresponding part. That is, the basket 850 '
Of fuel 808 'ejected from through hole 817' of partition 803 '
Protects coolant / filter 807 'from burning flame
The direction of the flame can be further changed and the combustion chamber 805 '
So that the gas generating agent 806 ′ can be sufficiently turned around.
Formed on the peripheral wall 852 'of the perforated basket 850'
Through hole 851 ′ is ejected from the through hole 817 ′ of the partition wall 803 ′.
Remove the part where the flame from the combustion of the transfer powder 808 'hits and shape
Is done. Preferably, the through hole 851 'of the peripheral wall 852'
Below the point where the flame from the combustion of the medicine 808 'gushes
It is formed at regular intervals. As a result, this perforated
Above the basket 850 ', in particular, a through hole 851' is formed.
Above the coolant / filter 807 '.
Coolant from the flame generated by the combustion of the explosive charge 808 '
Coolant / filter protection to protect filter / filter 807 '
The function and direction of the flame are changed so that the flame becomes a gas generating agent 806 '.
It will have a combustion promotion function to make it rotate sufficiently.
You. Penetration formed in perforated basket 850 '
The size of the through hole 851 'is
It can be adjusted appropriately as in the case of the basket. [0172] The perforated basket 850 '
Applies also to mechanically ignited gas generators as shown in Figure 29.
You can also. The gas generator for an air bag shown in FIG.
As with the airbag gas generator shown in FIG.
Two or more coolant / filters 750 'stored in the jing
It is characterized by being formed with an upper layer. But this
The gas generator shown in FIG. 42 is different from the gas generator shown in FIG.
Especially for electro-ignited gas generators.
Coolant / filter 750 '. This gas generator has a gas outlet 711 '.
Claw with diffuser shell 701 'and central hole 713'
The inside of the housing formed by joining
At 703 ', the ignition device housing chamber 704' and the combustion chamber 705 '
It is divided into two chambers, and another drawing
Ignition including transfer charge 708 'and igniter 715' described based on
The apparatus is housed in the combustion chamber 705 ', as shown in FIG.
In addition to the coolant / filter 750 'formed by the upper layer,
Gas generating agent 706 ', coolant support member 709', ring body 71
0 ', plate member 712' and other gas generators
Suitable members are appropriately accommodated. Coolant / fill
A gap 714 'can be provided on the outside of the heater 750'. The coolant formed of the two or more layers /
The filter 750 'is, for example, an inner
Layer 751 'and outer layer 752' are formed of different densities or materials.
Can be achieved. The inner layer 751 'and the outer layer 752'
To form coolant / filter 750 'of different density
, The inner layer 751 'is formed with a wire mesh with a coarse pore structure
And form an outer layer 752 'with a wire mesh with a finer void structure.
Can be formed by combining both layers in the radial direction
You. The void structure used for this inner layer 751 'has been roughened
As a wire mesh, for example, based on other drawings (FIGS. 2 to 6)
The described annular wire mesh laminate is formed by compression molding in a mold.
Can be used. The perforated basket 850 '
Applies also to mechanically ignited gas generators as shown in Figure 33.
You can also. Next, the non-azide gas generating agent will be described.
You. A conventional azide-based gas generating agent has a decomposition onset temperature.
Degree of 350 ° C, combustion temperature of 1500K, normal point
Ignition is unstable with firearms alone, and even if ignited, gas is emitted.
Combustion was not enough to satisfy the performance of the creature,
Igniter to charge the charge (B / KNO_ThreeIgnite and transfer
The gas generating agent was ignited and burned by the energy of the medicine. D
330 ° C as a gas generating agent for this gas generator for Abag
Decomposition temperature below and combustion temperature above 2000 K
As a gas generating agent with excellent ignitability and flammability
If azide-based gas generators were used, they were previously required
It has been found that explosives can be dispensed with.
The decomposition start temperature is preferably 310 ° C. or lower. Non-azide gas generation used in this gas generator
As the crude drug, use various conventionally proposed ones.
obtain. For example, tetrazole, triazole, or this
Nitrogen-containing organic compounds such as metal salts and alkali metal nitrates
Those containing oxygen-containing oxidizing agents such as
Anidine nitrate, carbohydrazide, nitroguanidine
Fuel and nitrogen as fuel and alkali metal as oxidizer
Or alkaline earth metal nitrates, chlorates, perchlorates
And the like are known.
Can be used as a gas generating agent. But these
Without limitation, burning rate, non-toxicity and burning temperature
It is appropriately selected according to the requirements of the degree. Gas generating agent
Let, wafer, hollow column, porous, or
It is used in an appropriate shape such as a mask. When the gas generating agent is ignited by an igniter,
The larger the surface area of the gas generating agent, the easier the ignition
Therefore, gas generating agents such as hollow cylinders and porous bodies
preferable. The internal volume of the gas generator housing is
More preferably 65 to 115 cc, but 60 to 130 cc
It may be cc. Further, the filling weight of the solid gas generating agent is preferably
More preferably, the side airbag for the driver weighs 30-40g.
However, it may be 20 to 50 g. The non-azide gas generating agent is 70 kg / cm
^TwoUnder a pressure of 5 to 30 mm / sec.
Car airbags using this gas generating agent
When configuring a gas generator for
40-60 msec, 50-8 for passenger airbag
0 msec, 5 to 15 msec for side collision airbag
It is necessary to burn all gas generating agents. So the gas
The surface area of each gas generant to regulate the combustion of the gas generant
Is the sum of A and the opening of each gas outlet of the diffuser shell
When the sum of the areas is At, the value of the ratio of A to At, A / A
Appropriate settings are made for t. That is, this ratio A
/ At is set as follows: For driver airbags, 20-50 g of gas
A / At = 100-300, In the passenger airbag, 40-120 g of gas
A / At = 80 to 240, For side-impact airbags, 10-25 g of gas is generated
A / At = 250-3600 When the A / At ratio exceeds the maximum value of each airbag, the air
The pressure inside the bag gas generator becomes excessive,
The result is that the burning rate of the feed is too high. The ratio is
If it becomes smaller than the small value, the pressure in the gas generator for airbag
It is said that the power does not rise sufficiently and the combustion speed becomes too low
Results. In any case, the burning time is outside the desired range
And a gas generator for airbags with such a burning time
Cannot be used. To achieve complete combustion in the desired combustion time
The thickness of the thick part in one shape of the gas generating agent
The minimum thickness distance of 0.01 to 2.5 mm
Is preferable, and the thickness is more preferably 0.01 to 1.0 mm.
Preferred. [0184] [Embodiment] Hereinafter, a transfer charge is prepared by using four types of gas generating agents.
Ignition of the gas generant by the igniter without using
And the results shown in Table 1 were obtained. The igniter is Zpp (Zircon
12 using a mixture of chromium / potassium perchlorate)
50 psi was used. The composition ratio is a weight ratio.
NQ is high density nitroguanidine. [0185] [Table 1] [0186] [Table 2]In Example 1 and Example 2 of the present invention,
The gas generant is ignited by the igniter without using a medicine.
Was. In Comparative Example 1, the decomposition starting temperature was high and the combustion temperature was high.
It was too low to ignite without the charge. In Comparative Example 2, although the decomposition start temperature was low,
Due to the low firing temperature, it did not ignite without the transfer charge. (Diffuser) of gas generator housing
Combustion particles (combustion residue) discharged together with gas from discharge holes
It is desirable to limit the amount of Because such
Particles tend to burn airbags attached to gas generators
Because there is. The optimum range of particles does not exceed 2 g. Moth
The combustion temperature of the air itself is to prevent airbag damage.
It is not a critical factor. The coolant / filter of the present invention can
Normally generated by combustion of gas generant during operation of genital
2g or less of combustion residue contained in gas generation is desirable
Has a function of weighing 1 g or less, particularly preferably 0.7 g or less.
Need to be Here, the normal gas generation amount depends on the application.
The airbag for the driver's seat of a car, for example, differs depending on the
0.5 to 1.5 mol for gas generators for
1.5 to 5 mol for gas generators for airbags for passengers
is there. In the gas generator for an air bag according to the present invention,
Regardless of the amount of generated gas, it is included in the generated gas.
The amount of combustion residue to be contained is limited to the above specified value.
There must be. However, in this regard, the required number of moles of gas is
Higher combustion temperatures of gases generated by non-azide gas generants
And reduced due to the higher gas expansion associated with it.
It is. As a result, less gas generant is required and less
A gas generator is enabled. The bulk density of such coolant / filter
Is 3.0-5.0 g / cm^Three, Preferably 3.5 to 4.5 g / cm^Threeso
is there. As the material of the wire mesh, for example, stainless steel is used.
Stainless steel, for example, SUS3
04, SUS310S, SUS316 (JIS standard description)
No.) can be used. SUS304 (18
Cr-8Ni-0.06C) is an austenitic stainless steel.
It shows excellent corrosion resistance as stainless steel. Both outside and inside the filter, or none
On the other hand, a reinforcing rib having a large number of through holes throughout the peripheral wall
Can be fitted, but this is not necessarily
Not necessary. The gas generator (inflator) of the present invention is
An azide-based nitrogen-containing organic compound is used. This non-azide
The gas generating agent includes at least a nitrogen-containing organic compound and an oxidizing agent.
And a slag forming agent.
When forming a molded body, it is possible to mix a binder
Wear. As the nitrogen-containing organic compound, for example, tria
Zole derivatives, tetrazole derivatives, guanidine derivatives
Body, azodicarbonamide derivative, hydrazine derivative
One or more mixtures selected from the group consisting of
You. As specific examples of these, 5-oxo-1,
2,4-triazole, tetrazole, 5-aminotet
Lazole, 5,5'-bi-1H-tetrazole, guanidinium
, Nitroguanidine, cyanoguanidine, triamino
Guanidine nitrate, guanidine nitrate, guanidine carbonate,
Biuret, azodicarbonamide, carbohydrazi
, Carbohydrazide nitrate complex, oxalic acid dihydrazide,
Hydrazine nitrate complex and the like can be mentioned. Among them
Nitroguanidine and cyanoguanidine are preferred;
Nitroguanidine is most preferred because of the low carbon number in the offspring.
It is a good compound. Needle-shaped crystals as nitroguanidine
Low-density nitroguanidine in bulk and high-density nitro in bulk crystals
There is guanidine, any of which can be used, but with a small amount of water
Due to safety and ease of handling during production in the presence of
More preferred is the use of heavy nitroguanidine. The concentration of the compound is determined by the carbon element in the molecular formula, water
Depends on the number of elemental elements and other oxidized elements
Is usually used in the range of 25 to 60% by weight, preferably 30
It is used in the range of 4040% by weight. Oxidant species used
Absolute value differs depending on the class, but is larger than the theoretical amount of complete oxidation
And the amount of trace CO in the generated gas increases,
And below that, the concentration of trace NOx in the generated gas increases.
Great. The most preferable range is that the balance between the two is maintained.
New Various oxidizing agents can be used.
Is selected from alkali metals or alkaline earth metals.
Oxidation selected from at least one of thion-containing nitrates
Agent is used. The amount depends on the gas generating compound used.
Absolute value varies depending on the type and amount, but in the range of 40 to 65% by weight
And especially in relation to the above CO and NOx concentrations.
A range of 5 to 60% by weight is preferred. In addition, airbags such as nitrite and perchlorate
Oxidants commonly used in the field of inflators can also be used.
But decrease the number of oxygen in nitrite molecules compared to nitrate
Of fine mist that can be easily discharged or released outside the bag
Nitrate is preferred from the viewpoint of reducing the formation. The function of the slag forming agent is as follows.
Gold produced by the decomposition of oxidizer components
Metal or alkaline earth metal oxide as mist
From liquid to solid to avoid release to the outside of the
Change the coolant / filter to make them better in the combustion chamber
Let it stop inside. Coolant / filter
Trap the mixture of granulating agent and particulate residue, cool and cool
To a particle size that does not subsequently pass through the filter / filter. This
Interaction eliminates the need for traditional filter structures
I do. Slurries optimized by the difference in metal components
Can be selected. As this slag forming agent
Are aminosilicates such as bentonite and kaolin
Naturally occurring clays and synthetic mai
Artificial viscosity of mosquito, synthetic kaolinite, synthetic smectite, etc.
Tal, a kind of soil and hydrous magnesium silicate minerals
Selected from at least one of these.
Slag formers can be used. Preferred slug shape
Acid clay may be mentioned as a forming agent. For example, oxidation generated from calcium nitrate
Aluminum oxide, which is the main component in calcium and clay, and
And Viscosity of Oxide Mixture in Ternary System of Silicon Oxide
And melting point range from 1350 ° C to 1550 ° C depending on the composition ratio.
The viscosity changes from 3.1 poise to about 1000 poise in
The point changes from 1350 ° C to 1450 ° C depending on the composition. these
Utilizing properties, depending on the mixing composition ratio of gas generating composition
The ability to form slag can be exhibited. The amount of the slag forming agent used is in the range of 1 to 20% by weight.
Can vary, but preferably between 3 and 7% by weight
Range. If it is too large, the linear burning rate will decrease and gas generation will occur.
If the amount is too small, the slag forming ability will be insufficient.
Can not be demonstrated. The binder is used to form the desired gas generating composition.
It is a necessary component to obtain a mold, and contains water and solvents.
Viscous in the presence of water, which has a significant adverse effect on the combustion behavior of the composition
Any one that does not provide can be used. This
Examples of such binders include carboxymethyl cell
Loin metal salts, hydroxyethyl cellulose, acetate acetate
Lulose, cellulose propionate, cellulose acetate butyrate
, Nitrocellulose, and polysaccharide derivatives such as starch.
However, due to manufacturing safety and ease of handling, water-soluble
Are preferred. Carboxymethylcellulose metal
Salts, especially sodium salts, are mentioned as most preferred examples
You. The amount of the binder used is in the range of 3 to 12% by weight.
And more preferably in the range of 4 to 12% by weight.
You. The larger the quantity, the stronger the breaking strength of the molded body
However, the larger the amount, the more carbon and hydrogen elements in the composition
Is increased and trace CO, which is an incomplete combustion product of carbon element,
To increase the gas concentration and reduce the quality of the generated gas
Not preferred. Especially when the amount exceeds 12% by weight,
Requires an increase in the proportion of gas-evolving compounds
Of the inflator system that is
Standing is difficult. Furthermore, carboxymethyl cellulose nato
Molded body production using water as a secondary effect of ium salt
Sodium nitrate sometimes produced by transmetallation with nitrate
Acid due to the existence of micro-mixed state of molecular order of
Nitrate, especially strontium nitrate with high decomposition temperature
Shifts the decomposition temperature of uranium to lower temperatures to improve flammability
Has the effect of causing. Accordingly, the present invention is used in the practice of the present invention.
Preferred gas generant compositions are (A) about 25-60% by weight, preferably 30-40% by weight of nitro
Log anidine (B) oxidation of about 40-65% by weight, preferably 45-65% by weight
Agent (C) about 1 to 20% by weight, preferably 3 to 7% by weight of slurry
Brush forming agent (D) about 3 to 12% by weight, preferably 4 to 12% by weight
Under A gas generating composition comprising
as, (A) about 30-40% by weight of nitroguanidine (B) about 40-65% by weight of strontium nitrate (C) about 3-7% by weight of acid clay and (D) about 4-12% by weight of carboxymethylcellulose
Sodium salt A gas generating composition comprising: Thus, according to the present invention, (A) about 25-60% by weight of nitroguanidine (B) about 40 to 65% by weight of an oxidizing agent (C) about 1 to 20% by weight of slag forming agent (D) about 3 to 12% by weight of a binder The present invention provides a molded article of a gas generating agent for an airbag, comprising: Examples of the nitrogen-containing organic compound include dicyandiamine
Are also preferably used. Nitrogen-containing organic compound in gas generating composition
Used amount of the element constituting the nitrogen-containing compound used
Number and molecular weight, combination with oxidizing agents and other additives
Combination with oxidizing agent and other additives
It is most preferable that the oxygen balance by
Oxygen balance according to the generated concentration of trace CO and NOx
Optimum composition molding by adjusting to positive or negative side
The body is obtained. For example, when using dicyandiamide
In this case, the amount is preferably in the range of 8 to 20% by weight. The oxygen-containing oxidizing agent used in the present invention
Known oxidizing agents in the field of gas generating agents for airbags.
It can be used, but basically the residue component is liquid or
Become gaseous and reduce thermal load on coolant and filter media
The ability to generate high melting point materials to reduce
It is preferable to use a quality oxidizing agent. For example, potassium nitrate generally generates gas.
Oxidizing agent used in crude drugs, but the main residue during combustion
The component is potassium oxide or potassium carbonate,
Potassium is converted to potassium peroxide and metallic potassium at about 350 ° C
Decomposes and potassium peroxide has a melting point of 763 ° C.
When the gas generator is in operation, it is in liquid or gas state,
Considering the thermal load on the coolant and filter media
I don't. As the oxidizing agent preferably used in the present invention,
Is strontium nitrate. Strontium nitrate
The main residue component during combustion of the system is an oxide strobium with a melting point of 2430 ° C.
Is almost solid even when the gas generator is in operation
State. The amount of the oxidizing agent used in the present invention
If the amount of oxidizing agent is sufficient to completely burn the organic compounds,
To control the linear burning rate and heat value
It can be changed as appropriate, but it can be used as an oxidizing agent
When using strontium nitrate, 11.5-55% by weight
Preferably, there is. One of the preferred gas generating compositions of the present invention
Dicyandiamide in 8 to 20% by weight, nitric acid
11.5 to 55% by weight of trontium and 24.5 to 80% of copper oxide
% By weight of sodium salt of carboxymethylcellulose
0.5 to 8% by weight.
Is 8 to 20% by weight of dicyandiamide, stronic nitrate
11.5 to 55% by weight of titanium, 24.5 to 80% by weight of copper oxide
%, 0.5% sodium salt of carboxymethylcellulose
Also provided is a gas generant composition containing from 8 to 8% by weight.
It is. Nitroguanidine, Sr (NO_Three)_Two, Carboxy
Methylcellulose and acid clay, nitroguanidine:
Sr (NO_Three)_Two: Carboxymethylcellulose: Acid clay = 3
Non-azide solid gas containing 5.4: 49.6: 10: 5 composition ratio by weight
The gas generating agent is used in the gas generator for an air bag of the present invention.
Operates in a tank to generate gas. The gas generator
Generated gas discharged from the tank is stored in the tank,
The inside of the tank is washed with acetone and discharged from the gas outlet
Obtain the combustion residue contained in the gas and remove the combustion residue in the gas.
The amount was measured. As a result, the gas discharged from the gas generator
The amount of generated gas was 1 mol, and 0.3 g of fuel
There was a burning residue. The airbag of the present invention for a passenger seat
Gas generator is the same test, the amount of generated gas is 4mol
And contained 0.6 g of combustion residue.
In both tests, less than 2 g of particles were generated.
Prevents particle damage of the bag. In practicing the present invention, the following additional
Operating parameters were found. The present inventors have prepared the above non-azide gas generating agent.
To ensure stable combustion, the maximum pressure inside the gas generator
Is at least 100kg / cm^TwoWhat you need and gas
300 kg / cm maximum internal pressure^TwoOver the container (Housing
Need excessive strength, and the gas generator is small and light
We found that it was not quantity. However, rupture occurs for such a maximum internal pressure.
It is unnecessary to control the pressure using a plate, etc.
With a maximum internal pressure of 100 to 300 kg / cm^Two,
Opening area / Gas generation 0.50-2.50cm^Two/ mol
Output curve suitable for airbag deployment
Was found. That is, according to the present invention, gas is generated inside the housing.
The gas generated from the gas generating agent is stored in the air bag.
That control the combustion of the gas generant in the direction of passage to the
A gas generator provided with an opening of
0.5% of the total area of the opening with respect to the amount of gas
0-2.50cm^Two/ mol, the maximum internal pressure when operating the gas generator is 100
~ 300kg / cm^TwoAirbag gas characterized by the following:
Provide a generator. In implementing the present invention, the opening is equivalent to a circle.
It preferably has a diameter of 3 to 4.5 mm. Where the circle equivalent diameter
Means that the opening has a shape that can approximate a circle as well as a circle.
In some cases, the diameter was not a diameter but an equivalent circle diameter.
This is the diameter of a perfect circle that equals the area of each opening
It is. If the equivalent circle diameter of the opening is less than 2 mm, the total area of the opening
/ Gas generation amount is 2.50cm^Two/ mol or less
Airbag components present in the mouth, e.g.
If the gas outlet of the cooling diffuser is
If the opening is a combustion chamber partition inside the housing,
Damage ruta and coolant. Also open to prevent this
Increasing the number of mouths increases the number of holes too much, and costs
Take it. In the present invention, a small container having an inner volume of 120 cc or less
And the maximum internal pressure is 100 ~ 300kg / cm^Two, Preferably 130-180kg
/cm^Two, Total opening area / gas generation amount 0.50 ~ 2.50cm^Two/ mo
l, preferably 1.00-1.50cm^Two/ mol
Select the gaseous gas generating agent and determine the hole diameter and number of openings.
Set. This makes the output suitable for airbag deployment
You can get a curve. The total area of the openings is (one hole
(Area) x (number). Therefore, for bags
Taking into account the damage determines the hole diameter and hence the number.
And The gas generator of the present invention has a gas generating agent inside.
In the direction in which gas from the gas generating agent passes,
A plurality of openings for controlling the combustion of the gas generant are provided in the generator.
Gas generated from the housing and / or gas generating agent
A partition in the housing in the direction that passes into the airbag (hereinafter
Below, it is simply a partition in the housing. ) Is formed
Anything can be used. The opening has one opening.
Mouth area is equivalent to a circle area with an inner diameter of 3 to 4.5 mm
Yes, housing, partition in housing, or housing
Circumferentially in either the housing or the bulkhead in the housing.
It is desirable to form 12 to 20 in total. In the present invention
The maximum internal pressure during operation in the gas generator depends on the housing or
An opening in any of the partitions in the housing, or c
Openings in both the housing and the bulkhead in the housing
Regulated by For example, housing and housing
An opening is provided on both the inside wall and the housing or the
The internal pressure of the housing at one of the openings in the partition
When regulating, the other opening further regulates the internal pressure
It can be formed appropriately within the range that does not
Wear. The opening through which the generated gas passes is housed
Circumferentially aligned with the partition in the housing and / or housing
Or staggered arrangement. The housing is formed by casting or forging.
In addition to the gas discharge openings (hereinafter referred to as gas
And ) With diffuser shell and central hole
Press-molded closure shells
Welding methods such as plasma welding, friction welding, and projection
For welding, electron beam welding, laser welding, TIG welding, etc.
It can be formed by welding. The housing is
With a gas outlet. This press formed housing
Makes manufacturing easier and reduces manufacturing costs.
Can be Diffuser shell and closure shell
For example, stainless steel with a thickness of 1.2 to 2.0 mm each
Use a plate to reduce the outer diameter of the diffuser shell
The outer diameter of the roger shell can be formed as 65-75mm
it can. Nickel plating on steel sheets instead of stainless steel sheets
You may use what gave the key. In this housing
Forming mounting flanges and housing outer peripheral wall
1.0 that functions as a gas flow path between
Preferably, a gap of about 4.0 mm is formed. housing
Is preferably 30 to 35 mm. The partition partitions the interior of the housing into two or more rooms.
And formed in the housing as needed
Is done. However, in the present invention, the combustion of the gas generating agent is controlled.
A partition provided with a plurality of openings is defined as a fuel for a gas generating agent.
It is a partition in the direction in which gas generated in the firing chamber passes.
As such a partition, for example, gas in the housing
Located between the generator storage chamber and coolant / filter
In addition to a partition wall, a combustion ring is also included. This
The combustion ring surrounds the combustion chamber
And the surrounding wall has the maximum
A number of openings for controlling the pressure are provided. [0230] The partition wall is formed in a cylindrical portion in the housing.
The material can be housed, and its peripheral wall can be used as a partition. Tube
The member is, for example, a stainless steel plate having a thickness of 1.2 to 2.0 mm.
It can be formed using a welded pipe that has been rolled into a tube and welded.
Wear. Even when the partition wall is formed using a cylindrical member, the cylindrical portion
An opening is formed in the material. [0231] Outside air (moisture) enters the opening.
If it is necessary to block, make the width 2 to 3.5 times the hole diameter.
It is desirable that a sealing tape having the same be attached. this
The sealing tape closes the opening solely for the purpose of preventing moisture.
What happens when the generated gas passes through the opening
It does not cause any obstacle and regulates the internal pressure of the housing at all
Never. Therefore, in the present invention, the thickness of the sealing tape
The thickness should be enough to prevent moisture from entering.
If you have it, for example, aluminum as sealing tape
If a tape is used, increase the thickness of the tape to 25 μm or more.
To prevent the entry of moisture from the tape surface
Can be However, in the present invention,
To start up the generator, the maximum internal pressure inside the housing is exclusively
Because it is regulated by the total area of the opening,
When the thickness of the loop is 80μm or more, combustion of the gas generating agent
Aluminum tape is
Explodes easily and bursts aluminum tape
It takes time until the airbag device starts up.
Slowing action makes it impossible to achieve the intended purpose
There is a risk. Therefore, seal the aluminum tape
When used as a tape, the tape thickness is 25-80 μm
Desirably. [0232] According to the gas generator of the present invention, the outer shell
To avoid the costly forging of the vessel
It is formed by press working that can be easily manufactured.
Therefore, it is advantageous in terms of cost and manufacturing. Sand
And press the diffuser shell and closure shell into the press
More molding reduces production costs
With diffuser shell and closure shell
Building is also easy. Conventionally, it is integrated with the circular portion of the diffuser shell.
By separating the formed central cylindrical member,
The shape of the fuser shell is simplified. Also, the central cylinder
By separating the material, the volume of the central tubular member can be diffused.
Can be changed freely as needed separately from the user shell
it can. The center tube member is, for example, a UO press
It can be manufactured at low cost by utilizing it. Coolant / fill provided for the gas generator
Is a machine that defines the combustion chamber in addition to the original cooling function.
Function as well as collecting combustion residue?
Combustion chamber bulkhead previously provided separately from coolant
Materials and filters can be eliminated. This
The number of parts is reduced and the diameter of the gas generator is reduced,
As a result, a compact and lightweight gas generator can be realized. An airbag device provided with the present gas generator is:
The number of parts of the gas generator is reduced and the diameter of the gas generator is reduced.
Has been reduced, so a compact and lightweight airbag device
realizable. The coolant / filter structure of the present invention is as follows.
Since it is configured as described above, fine combustion residues
But they can be collected effectively. That is,
The runt / filter has an excellent cooling function in addition to the original cooling function.
Since it also has a collecting function, it is necessary to separate it from the conventional coolant.
The filter that had been used can be abolished. Also, the coolant / filter structure of the present invention
According to the pressure of the gas generator by the coolant / filter
A power chamber, for example a combustion chamber, can be defined. That
Combustion previously required separately from coolant
Room defining components, such as combus cups,
Can be abolished. Therefore, the coolant / filter device of the present invention
A gas generator with a device reduces the number of parts and
Generator diameter is reduced, resulting in smaller and lighter gas generator
Can be realized. The present coolant / foil having a predetermined bulk density
Filter devices have significantly increased shape retention strength,
In addition, deformation due to gas pressure is avoided, so that coolant and
// The function of collecting the normal combustion residue of the filter device is ensured.
And a reduction in the thickness is achieved. In the coolant / filter of the present invention,
Is preferably formed with a bulge suppressing means on the outer peripheral portion,
Gas generator actuation between generator filter and housing
Secure a void at times. Coolant / filter and c
By keeping the voids between the housings, the combustion gases
Coolant passes through the entire area of the coolant / filter structure
Efficient use of heat / filter and effective cooling of combustion gas and
Achieve purification. [0241] The gas generator of the present invention can be used as described above.
Combustion gas is coolant / filter
Through the entire area of the structure, which
Effective use of components / filters and effective cooling of combustion gas
And purification is achieved. The perforated basket is Courant
Affect the pressure in the inflator
Protect from melting without accident. More perfor
Rated basket contains coolant / filter and gas
Prevents direct contact of the generator pellets
Friction against coolant / filter due to vibration
To prevent. Flame prevention for perforated baskets
The member or flame prevention plate is arranged opposite the row of holes in the separation plate.
The inner surface of the coolant / filter is
Shields from the flame spouting towards the filter, and furthermore
The ejected flame is deflected and the flame reaches the gas generating agent sufficiently
I will do it. Furthermore, the flame prevention part and the perforated part
Forming as a unit reduces the manufacturing process
Element for connecting the perforated part to the flame prevention part
Can be removed. The gas generator of the present invention has been
Eliminates the need for explosives, and the conventional three-chamber configuration
The diameter of the gas generator is smaller than that of
As a result, the size and weight of the gas generator can be reduced. Also,
Common to the igniter / combustion chamber of the present invention,
One-chamber gas with a gas generating agent surrounding the igniter
In the generator, the diffuser forming the housing
The shape of the shell and closure shell is simplified,
Gas generators are easy to manufacture, and
Be profitable. The air bag inflator of the present invention
Detects impacts from collisions with mechanical sensors
This allows the use of electric shock sensors, electronic control units and
It eliminates the need for an instrument to connect the sensor and control unit,
Compared to electrically activated airbag devices
Airbag device more compact and lighter in weight
can do. The airbag inflator of the present invention has a collision
Impacts, whether electrical or mechanical,
Can be activated. The gas generator of the present invention may be a gas generator, particularly
Use a non-azide gas generating agent, and generate
Diameter of the opening in the direction passing through the opening and the total area of the opening /
By controlling the generator, the use of
The gas generating agent in a stable manner, and
It is possible to obtain an output curve suitable for the development of the engine. Obedience
To reduce the size and weight of airbag gas generators.
Will be useful. In particular, the gas generator for an air bag of the present invention
Essential components include nitrogen-containing organic compound, oxidizing agent, and acid clay
Using a non-azide gas generating composition containing as
And the bulk density is 3.0-5.0g / cm^ThreeUse filters from
As a result, if the gas generating agent is burned,
Even if residue is generated, slag is generated and the gas of the present invention
It can be filtered off by a filter in the generator. So
As a result, the minimum amount of combustion residue passes through the filter
The damage to the bag can be eliminated. The gas generator for an air bag of the present invention was used.
In airbag systems, airbags are damaged by combustion residues
Is no longer affected by
Useful for airbag devices used for human body protection.
is there. The gas generator of the present invention is constructed as described above.
Equipped with short path prevention means, which
Gas short paths are always prevented and all combustion gases are
Filter means, which effectively
Cooled and purified combustion gas is always available, and
The normal deployment of the bag is always guaranteed. [0251] The gas generator of the present invention has various structures as described above.
The gas generating agent provided in the gas generator
It can be completely burned in the interval. In the gas generator of the present invention,
Due to the configuration of the flange portion in the embodiment, gas generation
Deformation of the housing during operation of the
Normal combustion of gas generating means and normal combustion gas
Flow is guaranteed and the housing is thinner
Thus, a compact and lightweight gas generator can be realized. [0253] Further, a fuse provided on the diffuser shell is provided.
Even if the welded part is damaged,
That is, the danger of causing harm to the occupant can be avoided. [0254] Diffuser shell and closure shell
Pressing reduces manufacturing costs
Achieved, diffuser shell and closure
The production of the well is also easier. The circular part and the closure of the diffuser shell
Rib-shaped reinforcement on both or one of the circular parts of the shell
To provide both or one of the body and the reinforcing step
The housing when the gas generator is activated, especially its circular part
Deformation is prevented. As a result, the inner surface of the circular part and the filter
A short path of combustion gas is prevented between the end faces of the
The normal deployment of the bag is always ensured. Although the present invention has been described above, it will
Clearly, it can be changed in many ways. Such a variant
Does not depart from the spirit and scope of the invention and
Such obvious modifications to those skilled in the art
Is one that falls within.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a gas generator for an airbag of the present invention. FIG. 2 is a perspective view of a cylindrical metal mesh used in a process of manufacturing the coolant / filter of the present invention. FIG. 3 is a schematic explanatory view of forming the cylindrical metal mesh of FIG. 2 into a coolant / filter. FIG. 4 is a schematic longitudinal sectional view of a manufactured coolant / filter structure according to the present invention. FIG. 5 is a schematic view of a flat plate member formed from a cylindrical metal mesh compressed in a radial direction. 6 is a schematic explanatory view of a multilayer cylindrical metal net formed by winding the flat plate member of FIG. 5; FIG. 7 is a longitudinal sectional view of another example of the gas generator for an airbag of the present invention. FIG. 8 is a schematic diagram of an airbag device of the present invention incorporating the gas generator for an airbag as shown in FIGS. FIG. 9 is a longitudinal sectional view of a conventional gas generator for an airbag. FIG. 10 is a longitudinal sectional view of another example of the gas generator for an airbag of the present invention including the coolant / filter of the present invention. FIG. 11 is a diagram showing a state of a flat knitted wire mesh for a coolant / filter of the present invention. FIG. 12 is a partial cross-sectional view of a conventional gas generator for an airbag provided with a coolant / filter. FIG. 13 is a partial cross-sectional view of a gas generator for an airbag of the present invention including a coolant / filter of another example of the present invention. 14 is a longitudinal sectional view showing an example of an element for preventing deformation and expansion of the coolant / filter of FIG. 13 to the outside. FIG. 15 is a longitudinal sectional view showing another example of an element for preventing the coolant / filter of FIG. 13 from deforming and expanding outside. FIG. 16 is a longitudinal sectional view of another example of the gas generator for an air bag of the present invention showing an additional detailed structure. FIG. 17 is a longitudinal sectional view showing a gas generator for an airbag according to still another example of the present invention. FIG. 18 is a partial longitudinal sectional view of another example of the gas generator for an airbag of the present invention. FIG. 19 is a partial vertical sectional view of still another example of the gas generator for an airbag of the present invention. FIG. 20 is a longitudinal sectional view of the gas generator for an airbag of the present invention, which is compatible with the airbag device for a passenger seat. FIG. 21 is a plan view of the gas generator for an airbag in FIG. 16; FIG. 22 is a plan view of the gas generator for an airbag in FIG. 17; FIG. 23 is a partial vertical sectional view of another example of the gas generator for an airbag of the present invention. 24 is a longitudinal sectional view of the gas generator for an airbag in FIG. 23. 25 is a longitudinal sectional view of a mechanical sensor in the gas generator for an airbag in FIG. 23. FIG. 26 is a partial longitudinal sectional view of still another example of the gas generator for an airbag of the present invention. FIG. 27 is a schematic perspective view of a perforated basket in the gas generator for an airbag in FIG. 26. FIG. 28 is a schematic longitudinal sectional view of a perforated basket in the gas generator for an airbag in FIG. 26; FIG. 29 is a partial vertical sectional view of another example of the gas generator for an airbag of the present invention. 30 is a schematic perspective view of a perforated basket in the gas generator for an airbag in FIG. 29. FIG. 31 is a schematic vertical sectional view of a perforated basket in the gas generator for an airbag in FIG. 26. FIG. 32 is a schematic view of an airbag device of the present invention incorporating the airbag gas generator as shown in FIG. FIG. 33 is a longitudinal sectional view of still another example of the gas generator for an airbag of the present invention. FIG. 34 is an exploded perspective view schematically showing a coolant / filter in the gas generator for an airbag of FIG. 33. FIG. 35 is a schematic view of an airbag device of the present invention incorporating the airbag gas generator as shown in FIG. FIG. 36 is a longitudinal sectional view of still another example of the gas generator for an airbag of the present invention. FIG. 37 is a schematic perspective view of a perforated basket in the gas generator for an airbag in FIG. 36. FIG. 38 is a schematic longitudinal sectional view of a perforated basket in the gas generator for an airbag in FIG. 36. FIG. 39 is a longitudinal sectional view of still another example of the gas generator for an airbag of the present invention. 40 is a schematic perspective view of a perforated basket in the gas generator for an airbag in FIG. 39. FIG. 41 is a schematic longitudinal sectional view of a perforated basket in the gas generator for an airbag in FIG. 39. FIG. 42 is a longitudinal sectional view of still another example of the gas generator for an airbag of the present invention. FIG. 43 is an exploded perspective schematic view of a coolant / filter in the gas generator for an airbag of FIG. 42. [Description of Signs] 1 diffuser shell 2 closure shell 3 housing 4 central cylinder member 5 coolant / filter 7 gas outlet 18 igniter 25 gas generating agent 60 cylindrical body 62 laminated body 64 plate 81 impact sensor 82 control unit 83 module case 334 Through hole 409 Gap 410A Attachment 411 Gas outlet 488 Laser welding 500 Gas outlet 504 Housing 506 Gas generant 507 Coolant / filter 509 Ignitioner 525 Gap 750 Coolant / filter 751 Inner layer 752 Outer layer 1550 Mechanical sensor 1515 Primer 2650 perforated basket

Claims (1)

[Claims] 1. A gas outlet formed by pressing a metal plate.
A diffuser shell with
Housing consisting of a closure shell with a central hole
When, A non-azide gas generating agent in the housing;
Concentrically arranged to form a hollow space for the ignition means, and a through hole
A central tubular member in the housing having: Ignition means in the central tube member; The fuel for the gas generating means is provided surrounding the central tubular member.
A baking chamber is defined and the flow rate is 100 l / min / cm at room temperature.
^Two0.3 × 10^-2~ 1.5 × 10^-2kg / cm^TwoPressure
Cooling of combustion gas and collection of combustion residue with power loss
Gas generation for airbags including coolant / filter
vessel. 2. The diffuser shell according to claim 2, wherein the housing is
-Having an outer peripheral wall formed by the closure shell
And the diffuser shell and closure shell
It is made of a stainless steel plate with a thickness of 1.2 to 3.0 mm.
The diffuser shell has an outer diameter of 45 to 75 mm.
Roger shells each have an outer diameter of 45 to 75 mm
And the diffuser shell and the closure shell
Between the outer peripheral wall formed by the coolant and the coolant.
2. The airbag according to claim 1, wherein a gap of 4.0 mm is formed.
Gas generator. 3. The gas outlet of the diffuser shell,
It has a diameter of 2.0-5.0mm and a total of 16-24
The airbag gas according to claim 1 or 2, wherein the airbag gas is arranged in a direction.
Generator. 4. The ignition device according to claim 1, wherein the central cylinder member is a hollow chamber for the ignition means.
And a plurality of circumferentially arranged through holes communicating with the combustion chamber.
3. The gas generator for an airbag according to claim 1, wherein the gas generator has a through hole.
Mortar. 5. The central cylindrical member has a length of 1.5 to 3.0 mm.
A total of 6 to 9 through holes having a diameter and arranged in the circumferential direction
And the gas outlet of the diffuser shell is 2.0 ~
It has a diameter of 5.0 mm, and a total of 16 to 24
The gas generator for an airbag according to claim 4, which is disposed. 6. The through holes are arranged in two rows in a staggered manner.
One row consists of three 1.5 mm diameter through holes, the other
6. The row of 3 comprises three through holes with a diameter of 2.5 mm.
Gas generator for airbags. 7. The coolant / filter according to claim 1, wherein
And a support member for preventing movement of the filter / filter.
The member is disposed so as to face a through hole of the central tubular member.
Remove the flameproof plate that covers the inner peripheral surface of the coolant / filter.
The through hole passes a fire from the ignition means to the combustion chamber
3. The gas generator for an airbag according to claim 1, wherein 8. A gas outlet of the diffuser shell is provided.
Aluminum tape having a width of 2 to 3.5 times the diameter of
3. The method according to claim 1, which is covered with a sealing tape comprising:
Gas generator for airbags. 9. A cushion of gas generating means is provided in said combustion chamber.
3. A gas generator for an airbag according to claim 1, which is disposed.
vessel. 10. The cushion is made of a stainless steel wire mesh.
And is fixed to a support plate, the support plate comprising:
A bend is provided at the periphery and the outer periphery.
Fixed between the central tubular member and the coolant.
Item 10. A gas generator for an airbag according to Item 9. 11. The total height of the housing is 25 to 40 mm.
And the coolant / filter is 40-65 mm
Outer diameter, inner diameter of 30-55 mm, and 19-37.6 m
m and a bulk density of 3.0-5.
0 g / cm^Three3. A laminated wire mesh structure according to claim 1 or 2.
Gas generator for airbags. 12. The gas discharge port is formed by press-forming a plate.
Diffuser shell and press-formed plate
A housing comprising a closure shell having a central hole
A non-azide gas generating agent in the housing;
The c, which is arranged concentrically with the hole and forms a hollow space for the ignition means;
A central tubular member in the housing, ignition means in the hollow chamber,
The non-diazide gas disposed surrounding the central tubular member;
A combustion chamber for the generator is defined and the flow rate is 100 l / m at room temperature.
in / cm^Two0.3 × 10^-2~ 1.5 × 10^-2kg /
cm^TwoPressure loss of the combustion gas and combustion residue
Gas generator including coolant / filter for collection
When, An impact sensor that senses an impact and outputs the sensing signal; Input the sensing signal and operate the ignition means of the gas generator
A control unit that outputs a signal, Air that expands by introducing gas generated by the gas generator
Module and a module housing the airbag.
Airbag device consisting of a base. 13. The diffuser shell and the closure
The shells each have a thickness of 1.2 to 3.0 mm.
Made of stainless steel, the diffuser shell is 45-75
mm outer diameter, the closure shell is 45-75 mm
Each having a diameter, the diffuser shell and the cloth
An outer peripheral wall formed by the outer shell and the coolant
13. A gap of 1.0 to 4.0 mm is formed between them.
The airbag device as described in the above. 14. The gas outlet of the diffuser shell.
Have a diameter of 2.0-5.0 mm, for a total of 16-24
14. The airbag according to claim 12, which is arranged in a circumferential direction.
Device. 15. The center cylinder member is a hollow chamber for the ignition means.
A plurality of circumferentially arranged communicating with the combustion chamber from the
14. The airbag device according to claim 12, which has a through hole.
Place. 16. The central cylindrical member has a thickness of 1.5 to 3.0 mm.
A total of 6 to 9 through holes having a diameter of
The airbag device according to claim 15, comprising: 17. The through holes are arranged in two rows in a staggered manner.
One row consists of three 1.5 mm diameter through holes,
The other row consists of three 2.5 mm diameter through holes.
17. The airbag device according to item 16. 18. The cooler / filter according to claim 16, wherein
A support member for preventing movement of the port / filter,
The holding member is for the flame of the ignition means pierced in the central cylindrical member.
Cover the inner peripheral surface of the coolant, which is placed facing the through hole.
14. The air according to claim 12, wherein the air has a flameproof plate portion.
Bag device. 19. The gas outlet of the diffuser shell is
Aluminum tape having a width of 2 to 3.5 times its diameter
12 or covered with a sealing tape comprising
14. The airbag device according to claim 13. 20. A cushion of gas generating means in said combustion chamber.
14. The airbag device according to claim 12, wherein:
Place. 21. The cushion is made of a stainless steel wire mesh.
And is fixed to a support plate, the support plate comprising:
A bend is provided at the periphery and the outer periphery.
Fixed between the central tubular member and the coolant.
Item 21. The airbag device according to item 20, wherein 22. The total height of the housing is 25 to 40 mm.
And the coolant / filter is 40-65 mm
Outer diameter, inner diameter of 30-55 mm, and 19-37.6 m
m and a bulk density of 3.0-5.
0 g / cm^Three12. The laminated wire mesh structure according to claim 12, wherein
4. The airbag device according to 3. 23. Gas discharging by press-forming a metal plate.
A diffuser shell with a mouth and a plate press-formed
Housing consisting of a closure shell with a central hole
And A non-azide gas generating agent in the housing;
Concentrically arranged to form a hollow space for the ignition means, and a through hole
A central tubular member in the housing having: Ignition means in the central tube member; It is made of a wire mesh having a wire diameter of 0.3 to 0.6 mm and 3.0 to 5.0.
g / cm^ThreeSurrounding the central tubular member having a bulk density
To define a combustion chamber for gas generation means and to cool the combustion gas.
Residue from combustion and ignition of the non-azide gas generant
Air bag containing coolant / filter for collecting residue
Gas generator. 24. The diffuser shell and the closure
The shells each have a thickness of 1.2 to 3.0 mm.
Made of stainless steel, the diffuser shell is 45-75
mm outer diameter, the closure shell is 45-75 mm
Each having a diameter, the diffuser shell and the cloth
An outer peripheral wall formed by the outer shell and the coolant
/ A gap of 1.0 to 4.0 mm is formed between the filters
A gas generator for an airbag according to claim 23. 25. A gas outlet of the diffuser shell
Have a diameter of 2.0-5.0 mm, for a total of 16-24
25. The airbag according to claim 23, wherein the airbag is arranged in a circumferential direction.
For gas generator. 26. The hollow cylinder for the ignition means, wherein the central cylindrical member is provided.
A plurality of circumferentially arranged communicating with the combustion chamber from the
25. The airbag according to claim 23, which has a through hole.
Gas generator. 27. The central cylindrical member has a thickness of 1.5 to 3.0 mm.
A total of 6 to 9 through holes having a diameter of
And the gas outlet of the diffuser shell is 2.0
It has a diameter of ~ 5.0mm and a total of 16 ~ 24
The gas generator for an airbag according to claim 26, wherein the gas generator is arranged. 28. The through holes are arranged in two rows in a staggered manner.
One row consists of three 1.5 mm diameter through holes,
The other row consists of three 2.5 mm diameter through holes.
28. The gas generator for an airbag according to 27. 29. The coolant / filter comprises
A support member for preventing movement of the port / filter,
The holding member is disposed to face the through hole of the central tubular member.
Flameproof plate covering the inner peripheral surface of the coolant / filter
And the through hole passes a flame from the ignition means to the combustion chamber.
25. The gas generation for an airbag according to claim 23 or 24, wherein
Mortar. 30. The gas outlet of the diffuser shell is
Aluminum tape having a width of 2 to 3.5 times its diameter
25. The method according to claim 23, wherein the seal is closed by a seal comprising
Gas generator for airbags. 31. A cushion of gas generating means in said combustion chamber.
25. The airbag gas according to claim 23, wherein the airbag is provided.
Generator. 32. The cushion is made of a stainless steel wire mesh.
And is fixed to a support plate, the support plate comprising:
A bend is provided at the periphery and the outer periphery.
Fixed between the central tubular member and the coolant.
Item 31. The gas generator for an airbag according to Item 31. 33. The total height of the housing is 25 to 40 mm.
And the coolant / filter is 40-65 mm
Outer diameter, inner diameter of 30-55 mm, and 19-37.6 m
m and a bulk density of 3.0-5.
0 g / cm^Three23. A laminated wire mesh structure according to claim 23 or 2.
4. The gas generator for an airbag according to 4. 34. Gas discharging by press-forming a metal plate.
A diffuser shell with a mouth and a plate press-formed
Housing consisting of a closure shell with a central hole
And A non-azide gas generating agent in the housing;
Concentrically arranged to form a hollow space for the ignition means, and a through hole
A central tubular member in the housing having: Ignition means in the central tube member; It is made of a wire mesh having a wire diameter of 0.3 to 0.6 mm and 3.0 to 5.0.
g / cm^ThreeSurrounding the central tubular member having a bulk density
To define a combustion chamber for gas generation means and to cool the combustion gas.
Residue from combustion and ignition of the non-azide gas generant
Generator including coolant / filter for collecting residue
When, An impact sensor that senses an impact and outputs the sensing signal; Input the sensing signal and operate the ignition means of the gas generator
A control unit that outputs a signal, Air that expands by introducing gas generated by the gas generator
Module and a module housing the airbag.
Airbag device consisting of a base. 35. The diffuser shell and the closure
The shells each have a thickness of 1.2 to 3.0 mm.
Made of stainless steel, the diffuser shell is 45-75
mm outer diameter, the closure shell is 45-75 mm
Each having a diameter, the diffuser shell and the cloth
An outer peripheral wall formed by the outer shell and the coolant
35. A gap between 1.0 and 4.0 mm is formed between them.
The airbag device as described in the above. 36. A gas outlet of the diffuser shell.
Have a diameter of 2.0-5.0 mm, for a total of 16-24
The airbag according to claim 34 or 35, wherein the airbath is arranged in the circumferential direction.
Device. 37. The hollow cylinder for the ignition means, wherein the central cylindrical member is
A plurality of circumferentially arranged communicating with the combustion chamber from the
The airbag device according to claim 34 or 35, wherein the airbag device has a through hole.
Place. 38. The central cylindrical member has a thickness of 1.5 to 3.0 mm.
A total of 6 to 9 through holes having a diameter of
And the gas outlet of the diffuser shell is 2.0
It has a diameter of ~ 5.0mm and a total of 16 ~ 24
The airbag device according to claim 37, wherein the airbag device is disposed. 39. The through holes are arranged in two rows in a staggered manner.
One row consists of three 1.5 mm diameter through holes,
The other row consists of three 2.5 mm diameter through holes.
The airbag device according to claim 38. 40. The cooler / filter according to claim 30, wherein
A support member for preventing movement of the port / filter,
The holding member is disposed to face the central cylindrical member through hole.
Remove the flameproof plate that covers the inner peripheral surface of the coolant / filter.
The through hole passes a fire from the ignition means to the combustion chamber
The airbag device according to claim 34 or 35, wherein the airbag device is operated. 41. The gas outlet of the diffuser shell is
Aluminum tape having a width of 2 to 3.5 times its diameter
34. The container is closed with a sealing tape comprising
36. The airbag device according to claim 35. 42. A cushion of gas generating means in said combustion chamber.
The airbag device according to claim 34 or 35, wherein
Place. 43. The cushion is made of a stainless steel wire mesh.
And is fixed to a support plate, the support plate comprising:
A bend is provided at the periphery and the outer periphery.
Fixed between the central tubular member and the coolant.
Item 43. The airbag device according to Item 42. 44. The overall height of the housing is 25 to 40 mm
And the coolant / filter has an outer diameter of 40 to 65 m.
m, inner diameter 30-55mm, height 19-37.6mm
36. The airbag device according to claim 34, wherein the airbag device is formed in a shape.
Place. 45. A housing having a plurality of gas outlets.
And ignition means provided in the housing; and
Gas generating means and the surroundings of gas generating means
Coolant / filter means disposed on the The gas generating means is a solid which can be ignited by the ignition means.
Non-azide substance, 70kg / cm^Two30mm under pressure
Generating a combustion gas having a linear combustion rate of less than The coolant / filter means is 100 l / min /
cm^Two0.3 × 10 at a flow rate of^-2~ 1.5 × 10^-2kg
/ Cm^Two Having a pressure loss of
To cool the combustion gas and collect combustion residues.
And the fuel in the gas discharged from the gas generator to the airbag
A gas generator for airbags that minimizes the content of burning residue. 46. A method according to claim 46, wherein said solid gas generating substance has a temperature of 330 ° C. or lower.
A solution having a solution start temperature and a combustion temperature of 2000 ° K or more
Item 46. The gas generator according to Item 45. 47. The filter / coolant means comprising:
Combine nets radially in a cylindrical shape and compress radially and axially
4. The method of claim 4, wherein the pressure drop provides a desired pressure drop range.
5 or 46 gas generator. 48. The coolant / filter according to claim 30, wherein
5.0 g / cm^ThreeA bulk density of 45 or 46.
Gas generator. 49. The coolant / filter has a wire diameter of 0.3.
47. The gas of claim 45 or 46, comprising a wire mesh of ~ 0.6 mm.
Generator. 50. The coolant / filter according to claim 30, wherein
5.0 g / cm^Three48. The gas generator of claim 47 having a bulk density of
Mortar. 51. The coolant / filter has a wire diameter of 0.3.
48. The gas generator of claim 47, comprising a wire mesh of ~ 0.6 mm. 52. The coolant / filter has a wire diameter of 0.3.
49. The gas generator according to claim 48, comprising a wire mesh of ~ 0.6 mm. 53. A housing having a plurality of gas outlets.
When, Ignition means disposed in the housing; Ignition by the ignition means disposed in the housing;
A solid gas generating agent that generates combustion gas by Cooling and burning of the combustion gas containing the solid gas generating agent
Coolant / filter means for collecting burnt residue
See The sum of the surface areas of the solid gas generating agents is A,
Assuming that the sum of the opening areas of the discharge ports is At, the difference between A and At
The value of the ratio A / At is (a) in the driver's seat airbag.
A / At = 100-300, (b) Passenger seat air
In the bag, A / At = 80-240, (c) side
For a collision airbag, A / At = 250-360.
A gas generator for an airbag that is 0. 54. The solid gas generating agent is 70 kg / cm.
^TwoUnder a pressure of 5 to 30 mm / sec.
54. The gas generator for an airbag according to claim 53, wherein the gas generator has a degree. 55. The solid gas generating agent is 70 kg / cm.
^TwoUnder a pressure of 5 to 15 mm / sec.
54. The gas generator for an airbag according to claim 53, wherein the gas generator has a degree. 56. The housing may have a size of 60 to 130 cc.
54. The gas generation for an airbag of claim 53 having an internal volume.
vessel. 57. A filling amount of the solid gas generating agent is 20 to 5
54. The gas generator for an airbag according to claim 53, which weighs 0 g. 58. The housing may have a size of 60 to 130 cc.
56. The airbag according to claim 54 or 55, having an inner volume.
Gas generator. 59. A filling amount of the solid gas generating agent is 20 to 5
The air according to any one of claims 54 to 56, wherein the weight is 0 g.
Gas generator for bags. 60. A housing, comprising: a diffuser shell;
And a closure shell, and a diffuser shell
In the circular part without the engineered hole and the outer peripheral part of the circular part
A peripheral wall portion having the gas outlet formed and a peripheral wall portion of the peripheral wall portion;
A flange portion extending radially outward at the tip end,
The closure shell creates space with the diffuser shell.
Forming a circular part and a center formed at the central part of the circular part
A hole and a peripheral wall portion formed on the outer peripheral portion of the circular portion; and the peripheral wall portion
A radially outwardly extending flange at the tip of the part.
And the ignition means is provided in a central hole of the closure shell.
58. The air according to any one of claims 53 to 57, wherein the air is provided.
Gas generator for bags. 61. The coolant / filter means and the housing
54. Includes a gap formed between outer circumferential walls of the housing.
58. The gas generator for an airbag according to any one of items 57 to 57. 62. The diffuser shell and the closure
The shells are each formed by pressing a plate.
60. The gas generator for an airbag according to 60. 63. A gas generator according to claim 53, An impact sensor that senses an impact and outputs the sensing signal; Input the sensing signal and operate the ignition means of the gas generator
A control unit that outputs a signal, Air that expands by introducing gas generated by the gas generator
Module and a module housing the airbag.
Airbag device consisting of a base. 64. The solid gas generating agent is 70 kg / cm.
^TwoUnder a pressure of 5 to 30 mm / sec.
64. The airbag device of claim 63 having a degree. 65. The solid gas generating agent is 70 kg / cm.
^TwoUnder a pressure of 5 to 15 mm / sec.
64. The airbag device of claim 63 having a degree. 66. The housing has a capacity of 60 to 130 cc.
64. The airbag device according to claim 63, having an internal volume. 67. The filling amount of the solid gas generating agent is 20 to 5
The airbag device according to claim 63, wherein the weight is 0 g. 68. The coolant / filter means and the housing
64. A housing including a gap formed between outer circumferential walls of the housing.
67. The airbag device according to any one of claims 67. 69. A non-azide gas generating agent, Housing housing the gas generating agent and having a gas outlet
When, Ignition of the gas generating agent to generate combustion gas and combustion residue
Gas ignition means, A filter for filtering combustion residue of the gas generating agent.
In the gas generator for engineered airbags, the gas outlet
Combustion residue in the generated gas discharged from
A gas generator for an airbag, comprising: 70. In the generated gas discharged from the gas discharge port,
70. The combustion residue is 1 g or less.
The gas generator for an airbag according to claim 1. 71. In the generated gas discharged from the gas discharge port,
7. The combustion residue is 0.7 g or less.
10. The gas generator for an airbag according to claim 9. 72. A gas generating agent comprising at least a nitrogen-containing organic compound.
It consists of a compound, an oxidizing agent and a slag forming agent.
The airbag according to any one of claims 69 to 71, wherein
Gas generator. 73. The nitrogen-containing organic compound is nitroguanidine.
73. The airbag gas according to claim 72, wherein
Generator. 74. The slag forming agent is preferably acid clay.
73. The gas generator for an airbag according to claim 72, wherein 75. The slag forming agent is an acid clay.
74. The gas generator for an airbag according to claim 73. 76. Nitroguanidine content in the gas generating agent
25-60% by weight, oxidizing agent content 40-65% by weight, acid
76. The method according to claim 75, wherein the content of the clay is 1 to 20% by weight.
Gas generator for airbags. 77. Nitroguanidine content in the gas generating agent
25-60% by weight, oxidizing agent content 40-65% by weight, acid
75. The method according to claim 74, wherein the content of the clay is 1 to 20% by weight.
Gas generator for airbags. 78. A cooler for filtering combustion residues of a gas generating agent
Weight / filter means 3.0-5.0 g / cm^ThreeBulk density
72. The method according to claim 69, wherein
A gas generator for an airbag according to any one of the preceding claims. 79. A cooler for filtering a combustion residue of a gas generating agent
Flow rate of 100 L / min / cm at room temperature^Two
0.3 × 10^-2~ 1.5 × 10^-2kg / cm^TwoPressure loss
The airbag according to claim 78, wherein the airbag is a filter.
For gas generator. 80. A gas generating agent comprising at least a nitrogen-containing organic compound.
It consists of a compound, an oxidizing agent and a slag forming agent.
80. The gas generator for an air bag according to claim 79, wherein 81. The nitrogen-containing organic compound is nitroguanidine
81. The gas for an airbag according to claim 80, wherein
Generator. 82. The slag forming agent is preferably acid clay.
81. The gas generator for an air bag according to claim 80, wherein 83. The slag forming agent is preferably acid clay.
82. The gas generator for an air bag according to claim 81, wherein 84. Nitroguanidine content in a gas generating agent
25-60% by weight, oxidizing agent content 40-65% by weight, acid
84. The method according to claim 83, wherein the content of the clay is 1 to 20% by weight.
Gas generator for airbags. 85. Nitroguanidine content in a gas generating agent
25-60% by weight, oxidizing agent content 40-65% by weight, acid
83. The method according to claim 82, wherein the content of the clay is 1 to 20% by weight.
Gas generator for airbags. 86. At least An impact sensor that senses impact, An airbag that operates by sensing the impact of the impact sensor.
Gas generator for Air that expands by introducing gas generated by the gas generator
An airbag device comprising a bag and the airbag.
73. The gas generator for use in any one of claims 69 to 71.
An airbag characterized by being a gas generator for an airbag.
Device. 87. A plurality of flat knit wire meshes are weighted radially in a cylindrical shape.
The airbag is made by compression molding in the radial and axial directions.
Combustion chamber for the gas generating means in the housing of the gas generator
A coolant / filter defining the desired pressure
Cooling and combustion of combustion gases by providing loss and filtration properties
A coolant / filter device that collects residues. 88. The coolant / filter according to claim 31, wherein
5.0 g / cm^Three90. The cooler of claim 87 having a bulk density of
Point / filter device. 89. The coolant / filter is at room temperature.
100 l / min / cm^Two0.3 × 10^-2~
1.5 × 10^-2kg / cm^TwoHaving a pressure loss of
87 or 88 coolant / filter device. 90. The coolant / filter has a wire diameter of 0.1 mm.
90. The cooler according to claim 89, comprising a wire mesh of 3 to 0.6 mm.
Point / filter device. 91. The coolant / filter having a wire diameter of 0.1 mm.
90. A wire mesh of 3 to 0.6 mm.
Coolant / filter device. 92. A diffuser having a plurality of gas outlets.
Forming a space with the shell and the diffuser shell
A housing comprising a closure shell,
Combustion chamber is defined together with jing to cool combustion gas and combustion residue
Coolant / filter means for collecting the residue; An igniter disposed in the combustion chamber, and an igniter adjacent to the igniter.
Decomposition temperature below 330 ° C and 2000 ° K
Having the above combustion temperature and being ignited by the igniter,
Airbag containing solid gas generating agent for generating combustion gas
For gas generator. 93. A decomposition starting temperature of 310 ° C. or less and 2000
Claims comprising a solid gas generating agent having a combustion temperature of at least K
Item 90. A gas generator for an airbag according to Item 92. 94. The housing has a capacity of 60 to 130 cc.
The airbag according to claim 92 or 93, having an internal volume.
Gas generator. 95. The filling amount of the solid gas generating agent is 20 to 5
95. The gas generator for an airbag according to claim 94, wherein the weight is 0 g. 96. The coolant / filter means and the housing
A gap is formed between the outer peripheral walls of the housing, and this gap is
Uniformity of combustion gas flow through coolant / filter means
94. The air bar of claim 92 or 93, which acts to increase
For gas generator. 97. The coolant / filter means and the housing
A gap is formed between the outer peripheral walls of the housing, and this gap is
Uniformity of combustion gas flow through coolant / filter means
95. The gas bag for an air bag according to claim 94, which acts to increase air pressure.
Generator. 98. The coolant / filter means and the housing
A gap is formed between the outer peripheral walls of the housing, and this gap is
Uniformity of combustion gas flow through coolant / filter means
97. The gas bag for an air bag according to claim 95, which acts to increase air pressure.
Generator. 99. The diffuser shell comprises: a circular portion;
A peripheral wall portion formed on an outer peripheral portion of the circular portion;
A flange portion extending radially outward at the end;
The closure shell has a circular portion and a central portion of the circular portion.
A central hole to be formed and a periphery to be formed at the outer periphery of the circular portion.
A wall portion, the diffuser shell and the closure
10. The shell is formed by pressing a plate.
95. A gas generator for an airbag according to 2 or 93. 100. The gas generator according to claim 92 or 93.
When, An impact sensor that senses an impact and outputs the sensing signal; Input the sensing signal and operate the ignition means of the gas generator
A control unit that outputs a signal, Air that expands by introducing gas generated by the gas generator
Bags and Air comprising a module case for accommodating the airbag.
Abag device. 101. The housing has a capacity of 60 to 130 cc.
The airbag device according to claim 100, having an inner volume of: The filling amount of the solid gas generating agent is 20 to
The airbag device according to claim 100, weighing 50 g. 103. The coolant / filter means and
100. A gap is formed between the outer peripheral walls of the housing.
The airbag device as described in the above. 104. The coolant / filter means and
102. A gap is formed between outer peripheral walls of the housing.
The airbag device as described in the above. 105. The coolant / filter means and the coolant / filter means
103. A gap is formed between the outer peripheral walls of the housing.
The airbag device as described in the above. 106. A housing having a plurality of gas outlets
And Ignition means disposed in the housing; Ignition by the ignition means disposed in the housing;
Gas generating means for generating combustion gas by A combustion chamber containing the gas generating means is defined, and the combustion gas is defined;
Coolant / filtration to cool the gas and collect the combustion residue
Filter means, wherein the coolant / filter means comprises:
The outer periphery thereof faces the inner surface of the outer peripheral wall of the housing.
Are arranged to form a gap between the The gap allows the combustion gas to pass through the coolant / filter.
To increase the uniformity of the flow through the entire surface of the means
Characteristic gas generator for airbags. 107. The coolant / filter means further comprising:
The coolant / filter means and before it is formed
Includes outer bulge prevention layer that maintains dimensional integrity of the gap
107. The gas generator for an airbag according to claim 106. 108. The housing includes a top plate, a bottom plate and the housing.
Including the outer peripheral wall including the The coolant / filter means extends between the top and bottom plates.
Has a long, substantially cylindrical structure, Further, the coolant / filter means and the top are provided in the combustion chamber.
An annular shield extending at least over the abutment between the plates
The gas outlet of the combustion gas to the gas outlet.
Short path between the coolant / filter means and the top plate
107. The gas generator for an airbag of claim 106, wherein the gas generator shuts off. 109. The gas generating agent is a non-azide substance.
And the total surface of the opening with respect to the amount of gas generated by the gas generating agent.
0.50-2.50cm^Two/ mol, gas generation
The maximum internal pressure of the vessel is thereby 100-300 kg / cm^Two
107. The air bag according to claim 106, wherein:
Gas generator. 110. The gas generating agent is a solid composition,
The gas generating agent is disposed in the combustion chamber adjacent to the igniter, and
Decomposition temperature below 30 ° C and combustion temperature above 2000 ° K
110. The method according to any one of claims 106 to 109, wherein
Gas generator for bag. 111. The coolant / filter means and the coolant / filter means
Radius of the gap defined by the outer peripheral wall of the housing
The area St in the cross section is the opening area of the gas outlet.
106-1 is equal to or larger than the total sum At
09. The gas generator for an airbag according to any one of items 09 to 09. 112. The gas generating agent is a solid composition,
The gas generating agent is disposed in the combustion chamber adjacent to the igniter, and
Decomposition temperature below 30 ° C and combustion temperature above 2000 ° K
112. Gas generation for an airbag according to claim 111, having a degree.
vessel. 113. Gas generation according to claims 106 to 109
Vessels, An impact sensor that senses an impact and outputs the sensing signal; Input the sensing signal and operate the ignition means of the gas generator
A control unit that outputs a signal, Air that expands by introducing gas generated by the gas generator
Bags and Air comprising a module case for accommodating the airbag.
Abag device. 114. The gas generating agent is a solid composition,
The gas generating agent is disposed in the combustion chamber adjacent to the igniter, and
Decomposition temperature below 30 ° C and combustion temperature above 2000 ° K
114. Gas generation for an airbag according to claim 113
vessel. 115. The coolant / filter means and
Radius of the gap defined by the outer peripheral wall of the housing
The area St in the cross section is the opening area of the gas outlet.
114. The method of claim 114, wherein the sum is equal to or greater than the sum At
Gas generator for airbags. 116. The coolant / filter means and said coolant / filter means
Radius of the gap defined by the outer peripheral wall of the housing
The area St in the cross section is the opening area of the gas outlet.
113. The method of claim 113, wherein the value is equal to or greater than the sum of At.
Gas generator for airbags. 117. A wire mesh sheet is prepared, Forming the sheet into a cylinder, One end of this cylindrical body is repeatedly bent outward to form an annular
Form a laminate, compression molding this laminate in a mold, Gives the desired bulk density, pressure loss and dimensional properties to it
It consists of doing. Fired in the airbag inflator
To cool the combustion gases and then filter the combustion residues
Forming an annular coolant / filter. 118. Applied to said coolant / filter
The target bulk density is 3.0 to 5.0 g / cm^ThreeWho is
The method of claim 117. 119. The target pressure loss is 100 l /
Min / cm^Two0.3 × 10 at room temperature^-2~ 1.5 × 1
0^-2kg / cm^Two118. The method of claim 117, wherein 120. The metal mesh having a wire diameter of 0.3 to 0.6 mm.
120. Any one of claims 117 to 119 formed from an attribute wire.
Term method. 121. The wire mesh is made of stainless steel.
120. The method according to any one of 117 to 119. 122. The annular coolant / filter means
The desired dimensions given are 30 to 55 mm in inner diameter, outer diameter
40 to 65 mm and a height of 19 to 37.6 mm
120. The method according to any one of items 117 to 119. 123. The outside of said coolant / filter means.
12. The method according to claim 11, further comprising the step of providing an outer bulge suppressing layer on the periphery.
120. The method according to any one of 7 to 119. 124. The total area of the through holes is
The pressure outside the ted basket is
The pressure inside the basket and the solid gas generant
When it occurs, it is determined that it is kept substantially the same.
254. The gas generator for an airbag of claim 254. 125. A porous cylindrical body is formed as the bulge suppressing layer.
And placing the porous cylinder on the annular coolant / filter means.
124. The method of claim 123, comprising the step of mating with. 126. A wire mesh formed in a cylindrical body, This cylindrical body is pressed in the radial direction to form a plate, This plate body is multiply wound into a cylinder to form a laminate, This laminate is compression molded in a mold, and
Conferring density, pressure drop and dimensional properties, Cools combustion gas generated in airbag inflator
And annular coolant for filtering combustion residues
/ Method of forming a filter. 127. A small number of metal wires having a wire diameter of 0.3 to 0.6 mm.
Form at least one wire mesh, wire diameter 0.5-0.6mm
Forming at least one other wire mesh of the metal wire of And of the finished annular coolant / filter means
At least one other cylinder is defined to define the side layer
127. The method of claim 126, comprising the step of fitting. 128. Prior to compressing said laminate, One end of the cylindrical body is outwardly directed toward the other end of the cylindrical body.
Further comprising the step of folding back to form the laminate
127. The method of claim 126. 129. The coolant / filter is provided.
Bulk density property is 3.0 to 5.0 g / cm^ThreeClaim 1
The method according to any one of claims 26 to 128. 130. The target pressure loss characteristic is 100 l /
Min / cm^Two0.3 × 10 at a flow rate of^-2~ 1.5 × 1
0^-2kg / cm^Two128. The method of claims 126 to 128, wherein
The method of claim 1. 131. A metal mesh having a wire diameter of 0.3 to 0.6 mm.
129. One of the claims 126 to 128 formed from an attribute wire.
Term method. 132. The method according to claim 1, wherein said metal is stainless steel.
The method according to any one of claims 26 to 128. 133. An annular coolant / filter.
The desired dimensions are 30 to 55 mm in inner diameter and 40 in outer diameter.
2 to 65 mm and a height of 19 to 37.6 mm.
The method according to any one of claims 26 to 128. 134. On the outer periphery of said coolant / filter
126. The method according to claim 126, further comprising the step of:
The method of any one of to 128. 135. The plurality of gas outlets are one or two.
352. The gas generator of claim 352, wherein the gas generator has different areas. 136. A porous cylindrical body is formed as the bulge suppressing layer.
And place the porous cylinder on the annular coolant / filter.
135. The method of claim 134, including the step of attaching. 137. The gas generator and its associated air
A method of controlling the gas flow to an bag, comprising:
Prepare the data housing, Placing a combustion gas generating agent in the housing, Communicating with the gas generating agent and the airbag in the housing
Multiple gas outlets, The total area of the gas outlet and the characteristics of the gas generating agent, The total area / volume of generated gas is 0.50 to 2.50 cm^Two/
The housing in the molar range and created by the gas
The maximum internal pressure in the tube is 100-300kg / cm^TwoLike
Correlating to the method. 138. The plurality of gas outlets have a circle-equivalent diameter.
138. The method of claim 137, wherein the distance is 2-5 mm. 139. The total area of the plurality of gas outlets is 1.0.
0-1.50cm^Two137 or 138.
the method of. 140. A gas generant located within said housing.
139. The method of claim 139, wherein is a non-azide gas generant. 141. The housing is operated by the inflator.
130cc when used in the airbag device
139. The method of claim 139, sized to provide the following internal volumes:
Law. 142. A gas outlet is provided with moisture deterioration of said gas generating agent.
Sealing with a water-resistant layer that collapses easily to prevent
140. The method of claim 139, comprising: 143. The water-resistant layer, which collapses easily, is
In response to the combustion of the crude agent, the generated gas
Such as bursting without controlling the maximum internal pressure created
144. The method of claim 142, wherein the method is a substance having properties. 144. The gas exhaust system having at least two gas outlets.
2. The size of a group having a circle equivalent diameter.
39 methods. 145. The gas outlet is provided around the housing.
Contractors provided in rows of outlets between 12 and 20
139. The method of claim 139. 146. 70 kg / cm^TwoUnder pressure of 30
Non-azide gas emission with linear burning rate of less than mm / sec
140. The method of claim 139, comprising selecting a herbal agent. 147. A gas generant located within said housing
137 or 138 wherein is a non-azide gas generant.
the method of. 148. The housing is operated by the inflator.
130cc when used in the airbag device
137. or a dimension that provides the following internal volume:
138. The method of 138. 149. The gas discharge port is provided with water deterioration of the gas generating agent.
Sealing with a water-resistant layer that collapses easily to prevent
138. The method of claim 137 or 138, comprising: 150. The water-resistant layer which collapses easily includes
In response to the combustion of the crude agent, the generated gas
Such as bursting without controlling the maximum internal pressure created
137. The method of claim 137 or 138, wherein the substance has properties.
Law. 151. The gas outlet having at least two gas outlets.
2. The size of a group having a circle equivalent diameter.
37. The method of 37 or 138. 152. The gas outlet is provided around the housing.
Contractors provided in rows of outlets between 12 and 20
137. The method of claim 137 or 138. 153. An additional 70 kg / cm^TwoUnder pressure of 30
Non-azide gas emission with linear burning rate of less than mm / sec
139. The method of claim 137 or 138, comprising selecting a crude drug.
Method. 154. Pyrotechnic airbag inflator housing
The internal pressure and properties of the predetermined amount of gas
A method of controlling, Housing having a combustion chamber and an igniter associated with the combustion chamber
Prepare Prepare a combustible gas generating agent in the combustion chamber, A coolant / filler surrounds the gas generating agent in the combustion chamber.
Prepare a ruta structure, An air bag inside the housing is provided outside the housing.
Multiple gas outlets to carry the generated gas toward Total opening area of the plurality of gas outlets and characteristics of the gas generating agent
Is generated by the combustion of the gas generating agent in the housing.
To control the maximum internal pressure that has been
Creates combustion pollutants with the properties of the coolant / filter structure
Characteristics of the gas generating agent to be discharged and the coolant / filter structure
To capture the combustion residue in
And a method consisting of 155. The gas generating agent is 70 kg / cm.^TwoPressure
Solid material having a linear burning rate of 30 mm / sec or less under force
156. The method of claim 154, wherein 156. The gas discharge port having a total opening area of the housing
The maximum internal pressure generated in the ring is 100 to 300 kg / c
m^TwoPer mole of gas generating agent
0.5-2.50cm^Two/ Mole range selected
Item 155. The method of Item 155. 157. Each of said gas outlets is a circle of 2 to 5 mm.
156. The method according to any one of claims 154 to 156, having an equivalent diameter.
Method. 158. The housing of said housing inside said gas outlet.
The volume is correlated with the combustion characteristics of the gas generant.
154. The method of any one of 154 to 156. 159. The volume of the housing is 130cc or less.
158. The method of claim 158, wherein 160. The total area of the gas outlet is the housing.
The maximum internal pressure generated in the pipe is 100-300 kg / cm^Two
To control within the range of
1.00 to 1.50 cm^Two/ Mol
154. The method of clause 154 or 155. 161. Each of said gas outlets is a circle of 2 to 5 mm.
169. The method of claim 160, having a substantial diameter. 162. The housing of said housing inside said gas outlet.
The volume is correlated with the combustion characteristics of the gas generant.
160 methods. 163. Each of said gas outlets is a circle of 2 to 5 mm.
163. The method of any one of claims 162, wherein the method has an equivalent diameter. 164. The volume of the housing is 130cc or less.
163. The method of claim 162, wherein 165. Each of said gas outlets is a circle of 2-5 mm.
169. The method of claim 164, wherein the method has an equivalent diameter. 166. The gas discharge port having at least two different gas outlets.
154. The dimensions of the opening 154 are sized to include a hole of an opening of a size.
156. The method of any one of claims 156. 167. The gas discharge port is connected to the maximum internal pressure range.
Disintegrable moisture closure seal with virtually no control effect on the seal
157. 154-156 comprising sealing with tape.
The method according to any one of the preceding claims. 168. The gas outlet as defined in claim 168, wherein at least two different
167. The dimensions of the opening being sized to include a hole of an opening of a predetermined size.
the method of. 169. The sealing tape having a diameter of the gas outlet.
Has a width of 2 to 3.5 times and a thickness of 25 to 80 μm
168. The method of claim 167, which is an aluminum tape. 170. The gas outlet having at least two different
163. The dimensions of the opening being 160 to include a hole of an opening of a size.
the method of. 171. The apparatus according to claim 1, further comprising:
Disintegrable moisture closure seal with virtually no control effect on the seal
169. The method of claim 160, comprising sealing with tape. 162. The gas outlet having at least two different gas outlets.
171 is sized to include a hole in an opening of any size.
the method of. 173. The seal tape having a diameter of the gas outlet.
Has a width of 2 to 3.5 times and a thickness of 25 to 80 μm
172. The method of claim 171, which is an aluminum tape. 174. When the number of gas outlets is in the range of 12 to 20,
Gas generating agent and how
Located between the airbag installed outside the jing,
157. The method of any of claims 154 to 156. 175. When the number of gas outlets is in the range of 12 to 20,
Gas generating agent and how
Located between the airbag installed outside the jing,
169. The method of claim 160. 176. The gas outlet having at least two different
174. The dimensions of the opening are sized to include a hole of an opening of a predetermined size.
the method of. 177. The gas discharge port is connected to the maximum internal pressure range.
Disintegrable moisture closure seal with virtually no control effect on the seal
177. The method of claim 174, comprising sealing with tape. 178. The gas outlet having at least two different gas outlets.
177 is sized to include a hole in an opening of any size.
the method of. 179. The seal tape has a diameter of the gas outlet.
Has a width of 2 to 3.5 times and a thickness of 25 to 80 μm
177. The method of claim 177, which is an aluminum tape. 180. The gas outlet having at least two different gas outlets.
175. The dimensions of the opening 175 are such that it includes a hole of an opening having a dimension.
the method of. 181. The gas discharge port is connected to the maximum internal pressure range.
Disintegrable moisture closure seal with virtually no control effect on the seal
177. The method of claim 175, comprising sealing with tape. 182. The gas outlet having at least two different outlets.
181 is sized to include a hole of an opening having a dimension of
the method of. (183) The seal tape has a diameter of the gas outlet.
Has a width of 2 to 3.5 times and a thickness of 25 to 80 μm
183. The method of claim 181, which is an aluminum tape. 184. The coolant / filter structure is at room temperature.
Flow rate 100 l / min / cm^Two0.3 × 10
^-2~ 1.5 × 10^-2kg / cm^TwoHaving a pressure loss of
157. The method of any of claims 154 to 156. 185. Each of said gas outlets is a circle of 2 to 5 mm.
184. The method of claim 184, wherein the method has an equivalent diameter. 186. The housing inside the gas outlet.
The volume is correlated with the combustion characteristics of the gas generant.
184. 187. The volume of the housing is 120 cc or less.
189. The method of claim 186, wherein 188. The total area of said gas outlets is
The maximum internal pressure generated inside is 100-300kg / cm^Twoof
Of the gas generated in the housing to control the
1.00 to 1.50 cm^Two/ Mol and the cooler
Flow rate of 100 l / min /
cm^Two0.3 × 10^-2~ 1.5 × 10^-2kg /
cm^Two155. The pressure drop of claim 154 or 155 having a pressure loss of
Method. 189. An outer wall wherein the housing includes the gas outlet.
And between the coolant / filter structure and the peripheral wall
Gas through the coolant / filter means
Providing gaps to increase flow uniformity
157. The method of any of claims 154-156, comprising: 190. The coolant / filter structure is at room temperature.
Flow rate 100 l / min / cm^Two0.3 × 10
^-2~ 1.5 × 10^-2kg / cm^TwoHaving a pressure loss of
189. The method of claim 189. 191. The total area of the gas outlet is equal to that of the housing.
The maximum internal pressure generated inside is 100-300kg / cm^Twoof
Of the gas generated in the housing to control the
1.00 to 1.50 cm^Two/ Mol, A housing having an outer wall including the gas outlet;
A coolant between the runt / filter structure and the peripheral wall;
/ Uniformity of gas flow throughout the filter means
16. The method of claim 15, further comprising the step of providing a gap to increase.
4 or 155. 192. The gas pressure of the airbag inflator is
A method that maximizes while minimizing its physical dimensions.
hand, Inflator housing having an inner volume of 130 cc or less
Formed in the housing and the housing is
Solid gas having an initial temperature and a combustion temperature of 2000 ° K or more
Filling the generator, A method consisting of: 193. 70 kg / cm^TwoUnder pressure of 30
Equipped with a solid gas generating agent having a linear burning rate of less than mm / sec
192. The method of claim 192. 194. The capacity of the inflator housing is further reduced.
Within the range of 60 to 130 cc, and the solid gas generating agent
192. The amount is selected within the range of 20-50g.
Is the 193 method. 195. The outside of said coolant / filter structure.
Inner surface of a wall of the housing including a perimeter and the plurality of gas outlets
Between the coolant / filter structure.
Of the combustion gas flowing from the combustion chamber through the
155-1. Increasing flow uniformity.
56. The method according to any one of 56. 196. The radial cross-sectional area St of the peripheral gap
Is the ratio of the total opening area At of the gas outlet to St / At.
This ratio controls the maximum internal pressure in the housing.
195. The method of claim 195, wherein the range is between 1 and 10 to control.
Law. 197. The maximum internal pressure in the housing is 130 to
180kg / cm^Two196 is maintained in the range of
Method. 198. The ratio of St / At is in the range of 2-5.
196. The method of claim 196. 199. The maximum internal pressure in the housing is 130 to
180kg / cm^Two198.
Method. 200. Coolant / filter means and its periphery
The surrounding gap is annular in shape and the coolant / filter
195. The method of claim 195, wherein the extensions extend substantially together around the periphery of the means.
Law. 201. The size of the surrounding gap in the radial direction is
200. The method of claim 200, wherein the distance is in the range of 1.0-4.0 mm.
Law. 202. The radial cross-sectional area S of the peripheral gap
t is the gas exhaust to control the maximum internal pressure in the housing.
3. The method according to claim 2, wherein the total area of the outlet is equal to or greater than At.
01 method. 203. The ratio of St / At is in the range of 1 to 10.
202. The method of claim 202. 204. The ratio of St / At is in the range of 2-5.
202. The method of claim 202. 205. The maximum internal pressure in the housing is 130.
~ 180kg / cm^Two200. The method of claim 200, wherein
Law. 206. The radial size of the annular peripheral gap is
205. The method of claim 205, wherein the distance is between 1.0 and 4.0 mm. 207. The radial cross-sectional area S of said peripheral gap
t is the gas exhaust to control the maximum internal pressure in the housing.
3. The method according to claim 2, wherein the total area of the outlet is equal to or greater than At.
05 method. 208. The radial size of the annular peripheral gap is
210. The method of claim 207, wherein the distance is between 1.0 and 4.0 mm. 209. The ratio of St / At is in the range of 1 to 10.
207. The method of claim 207. 210. The radial size of the annular peripheral gap is
210. The method of claim 209, wherein the distance is between 1.0 and 4.0 mm. 211. The ratio of St / At is in the range of 2 to 5.
207. The method of claim 207. 212. The radial size of the annular peripheral gap is
224. The method of Claim 211, wherein the distance is between 1.0 and 4.0 mm. 213. Radial cross-sectional area S of said peripheral gap
t is the gas exhaust to control the maximum internal pressure in the housing.
2. The method of claim 1, wherein the area is equal to or greater than a total area At of the outlet.
95 methods. 214. The maximum internal pressure in the housing is 130.
~ 180kg / cm^Two213. The method of claim 213, wherein
Law. 215. The coolant / filter structure is at room temperature.
Flow rate 100 l / min / cm^Two0.3 × 10
^-2~ 1.5 × 10^-2kg / cm^TwoHaving a pressure loss of
220. The method of claim 213. 216. The maximum internal pressure in the housing is 130.
~ 180kg / cm^Two215. The method of claim 215, wherein
Law. 217. Radial cross-sectional area S of said peripheral gap
t is the gas exhaust to control the maximum internal pressure in the housing.
2. The method of claim 1, wherein the area is equal to or greater than a total area At of the outlet.
89 methods. 218. The coolant / filter structure is at room temperature.
Flow rate 100 l / min / cm^Two0.3 × 10
^-2~ 1.5 × 10^-2kg / cm^TwoHaving a pressure loss of
218. The method of claim 217. 219. The housing may include a diffuser shell.
And the closure shell, the diffuser shell is
A circular portion having no processed hole, and an outer peripheral portion of the circular portion
A peripheral wall portion having the gas outlet formed therein, and the peripheral wall portion;
And a flange extending radially outward at the tip of the
And the closure shell is emptied with the diffuser shell.
Forming a space between the circular portion and the central portion of the circular portion
A central hole and a peripheral wall portion formed on an outer peripheral portion of the circular portion;
A flange extending radially outward at a tip of the peripheral wall;
And the ignition means is located at the center of the closure shell.
68. The method according to any one of claims 63 to 67, wherein the hole is disposed in the hole.
Airbag device. 220. The diffuser shell and the claw
Each Jacquell is made by press forming a plate
Item 70. The airbag device according to Item 67. 221. The coolant / filter structure is at room temperature.
Flow rate 100 l / min / cm^Two0.3 × 10
^-2~ 1.5 × 10^-2kg / cm^TwoHaving a pressure loss of
199. The method of claim 191. 222. The non-azide gas generating agent and the cooler
A perforation disposed between the inner peripheral surfaces of the
2. The airbag of claim 1 including a rated basket.
Gas generator. 223. The perforated basket is
The non-azide gas generating agent is in contact with the inner peripheral surface.
222. A gas generator for an airbag. 224. The perforated basket is
222 or 223 having a plurality of through holes therein.
Gas generator for airbags. 225. The size of each through hole is
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
224. The air of claim 224, wherein the air is determined to prevent contact.
Gas generator for bags. 226. The total area of the through holes is equal to that of the perforate.
The pressure outside the storage basket is the non-azide gas generant
When the gas is generating gas, the perforated basketball
Determined to be substantially equal to the pressure inside the
223. The gas generator for an airbag of claim 223. 227. The perforated basket is
The inner peripheral surface is disposed facing the through hole in the central cylindrical member and the inner peripheral surface.
A flame-proof plate portion for covering the
223. The flame is passed through the firing chamber.
Gas generator for airbags. 228. The flameproof plate has a height of about 8 to 15mm.
229. The gas generator for an airbag of claim 227. 229. The non-azide gas generating agent and the cooler
A perforation disposed between the inner peripheral surfaces of the
13. The airbag of claim 12, comprising a rated basket.
apparatus. 230. The perforated basket comprises
The non-azide gas generating agent is in contact with the inner peripheral surface.
229 is an airbag device. 231. The perforated basket is
229 or 230 having a plurality of through holes therein.
Airbag equipment. 232. The size of each through hole is
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
231. The air of claim 231, wherein the air is determined to prevent contact.
Bag device. 233. The through-hole has a total area of said perforate.
The pressure outside the storage basket is the non-azide gas generant
When the gas is generating gas, the perforated basketball
Determined to be substantially equal to the pressure inside the
231. The airbag device of claim 231. 234. The perforated basket is
The inner peripheral surface is disposed facing the through hole in the central cylindrical member and the inner peripheral surface.
A flame-proof plate portion for covering the
229. The flame is passed through the firing chamber.
Airbag equipment. 235. The flameproof plate has a height of about 8 to 15 mm.
234. The airbag device of claim 234. 236. The gas generator for an air bag according to claim 1, wherein
13. The airbag device of claim 12, wherein the device is disposed on a handle. 237. The non-azide gas generating agent and the cooler
A perforation disposed between the inner peripheral surfaces of the
24. The airbag of claim 23, including a rated basket.
For gas generator. 238. The perforated basket comprises
The non-azide gas generating agent is in contact with the inner peripheral surface.
237 Airbag gas generator. 239. The perforated basket is
237 or 238 having a plurality of through holes therein.
Gas generator for airbags. 240. The size of each through hole is
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
240. The air of claim 239, wherein the air is determined to prevent contact.
Gas generator for bags. 241. The total area of the through holes is equal to that of the perforate.
The pressure outside the storage basket is the non-azide gas generant
When the gas is generating gas, the perforated basketball
Determined to be substantially equal to the pressure inside the
243. The gas generator for an airbag of claim 238. 242. The perforated basket comprises:
The inner peripheral surface is disposed facing the through hole in the central cylindrical member and the inner peripheral surface.
A flame-proof plate portion for covering the
237. The flame is passed through the firing chamber.
Gas generator for airbags. 243. The flameproof plate has a height of about 8 to 15 mm.
243. The gas generator for an airbag of claim 242. 244. A total of 12 to 20 gas outlets are provided.
Separating the ignition means and the gas generating agent in the housing or
352. The air of claim 352, wherein the air is circumferentially arranged in the partition walls.
Gas generator for bags. 245. The non-azide gas generating agent and the cooler
A perforation disposed between the inner peripheral surfaces of the
35. The airbag of claim 34, including a rated basket.
apparatus. 246. The perforated basket comprises
The non-azide gas generating agent is in contact with the inner peripheral surface.
H.245 airbag device. 247. The perforated basket is
245 or 246 having a plurality of through holes therein.
Airbag equipment. 248. The dimensions of each through hole are
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
247. The air of claim 247, wherein the air is determined to prevent contact.
Bag device. 249. The total area of said through holes is
The pressure outside the storage basket is the non-azide gas generant
When the gas is generating gas, the perforated basketball
Determined to be substantially equal to the pressure inside the
247. The airbag device of claim 247. 250. The perforated basket comprises:
The inner peripheral surface is disposed facing the through hole in the central cylindrical member and the inner peripheral surface.
A flame-proof plate portion for covering the
245. The flame is passed through the firing chamber.
Airbag equipment. 251. The flameproof plate has a height of about 8 to 15 mm.
250. The airbag device of claim 250, wherein: 252. The gas generator for an airbag according to claim 1, wherein
35. The airbag device of claim 34, wherein the device is disposed on a handle. 253. The non-azide gas generating agent and the cooler
A perforation disposed between the inner peripheral surfaces of the
55. The airbag of claim 54, including a rated basket.
For gas generator. 254. The perforated basket comprises:
The non-azide gas generating agent is in contact with the inner peripheral surface.
253. An airbag gas generator. 255. The perforated basket is
253 or 254 having a plurality of through holes therein.
Gas generator for airbags. 256. The size of each through hole is
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
255. The air of claim 255, wherein the air is determined to prevent contact.
Gas generator for bags. 257. The non-azide gas generating agent and the cooler
A perforation disposed between the inner peripheral surfaces of the
107. The airbag of claim 106, comprising a rated basket.
Gas generator. 258. The perforated basket comprises:
The non-azide gas generating agent is in contact with the inner peripheral surface.
257. An airbag gas generator. 259. The perforated basket is
257 or 258 having a plurality of through holes therein.
Gas generator for airbags. 260. The size of each through hole is
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
259. The air of claim 259, wherein the air is determined to prevent contact.
Gas generator for bags. 261. The total area of said through holes is
The pressure outside the storage basket is the non-azide gas generant
When the gas is generating gas, the perforated basketball
Determined to be substantially equal to the pressure inside the
258. The gas generator for an airbag of claim 258. 262. The combustible gas generating agent and the coolant
Basket between perforated / filter structures
The perforated basket has multiple penetrations
156. The method of claim 154, comprising having a hole therein. 263. The size of each through-hole is determined by
Ted basket makes direct contact of the gas generating agent with the inner peripheral surface
Claim 2 including deciding to prevent doing so.
62 methods. (264) The gas generating agent has a total area of the through holes.
The perforated basket when generating gas
Pressure outside the inside of the perforated basket
Determination to be maintained substantially equal to the pressure of
262. The method of claim 262. 265. The gas discharge port, wherein the gas outlet is a seal
352. The gas generator of claim 352, wherein the gas generator is sealed with a pump. 266. The sealing tape has a diameter of the gas outlet.
Having a width of 2 to 3.5 times and a thickness of 25 to 80 μm
265. The gas generator of claim 265, wherein the gas generator is a luminium tape. 267. The ignition means operates the gas generator.
Contractors, including mechanical shock sensors that sense the impact of
13. The airbag device according to claim 1 or 12. (268) The ignition means further comprises: A firing pin fired by the mechanical sensor, A detonator that ignites and burns when pierced by the firing pin
When, The non-azide gas generant is burned by the flame from the primer.
Including transfer charges, 269. The airbag device of claim 267. 269. The ignition means further comprises: A chamber containing the primer and the charge, A primer piece that supports the primer between the firing pin and the charge
And The priming piece has a chamber in which the priming is set and the charge
Including a through hole communicating with the chamber to be 268. The airbag device of claim 268. 270. The primer piece absorbs moisture into the primer piece.
At least one end of the through-hole to prevent
269. The airbag of claim 269, wherein a seal tape is provided thereon.
Device. 271. The mechanical shock sensor provided therein.
267. A shock is sensed by the movement of the weight being placed.
Airbag equipment. 272. The gas generator for an air bag according to claim 1, wherein
Claims 1, 23, 45, 5 arranged on a handle.
3, 69, 87, 92 and 106.
Gas generator for bag. 273. The gas generator for an air bag according to claim 1, wherein
3. The vehicle according to claim 1, wherein the front dashboard is arranged in a front passenger seat dashboard.
Any of 3, 45, 53, 69, 87, 92 and 106
A gas generator for an airbag according to claim 1. 274. The contractor wherein the airbag is made of nylon.
An airbag device according to claim 12 or claim 34. 275. The module case is made of polyurethane.
An airbag device according to claim 12 or claim 34. 276. The flameproof plate has a height of about 8 to 15mm.
The gas generator for an airbag according to claim 7, wherein 277. The piercing plate in the central cylindrical member, wherein
227. Extending at least 2mm below the hole.
Gas generator for airbags. 278. The flameproofing plate extends through the central cylindrical member.
8. According to claim 7, which extends at least 2 mm below the hole.
Gas generator for airbags. 279. The support member having a thickness of 0.5 to 1.0 mm
Made of stainless steel sheet or steel sheet
A gas generator for an airbag according to claim 7. 280. The support plate having a thickness of 0.5 to 1.0 mm
Made from stainless steel sheet or steel sheet with
Item 10. A gas generator for an airbag according to Item 10. 281. The support member has a thickness of 0.5 to 1.0 mm.
Made of stainless steel sheet or steel sheet
An airbag device according to claim 21. 282. The support plate has a thickness of 0.5 to 1.0 mm.
Made from stainless steel sheet or steel sheet with
Item 22. An airbag device according to Item 21. 283. The support member has a thickness of 0.5 to 1.0 mm.
Made of stainless steel sheet or steel sheet
29. A gas generator for an airbag according to claim 29. 284. The support plate has a thickness of 0.5 to 1.0 mm.
Made from stainless steel sheet or steel sheet with
Item 32. A gas generator for an airbag according to Item 32. 285. The support member has a thickness of 0.5 to 1.0 mm.
Made of stainless steel sheet or steel sheet
An airbag device according to claim 40. 286. The support plate has a thickness of 0.5 to 1.0 mm.
Made from stainless steel sheet or steel sheet with
Item 43. The airbag device according to Item 43. 287. Housing having a plurality of gas outlets
, Ignition means provided in the housing, and ignition means
Gas generating means and gas generating means
Instead of coolant / filter means, The gas generating means is ignitable by the ignition means and burns
A solid non-azide substance that generates gas, The coolant / filter means is 100 l / min /
cm^Two0.3 × 10 at a flow rate of^-2~ 1.5 × 10^-2kg
/ Cm^Two Having a pressure loss of
To cool the combustion gas and collect combustion residues.
And the fuel in the gas discharged from the gas generator to the airbag
A gas generator for airbags that minimizes the content of burning residue. 288. A housing disposed in said housing.
Having an inner cylinder in which ignition means is installed.
And a gas generating agent and a gas generating agent.
Has a combustion chamber to accommodate coolant / filter means
287. The gas generator for an airbag according to claim 287. 289. The coolant / filter means comprises:
A stainless steel wire mesh is formed in a cylindrical body, and one end of this cylindrical body is
Part is repeatedly bent outward to form an annular laminate,
287. The laminate formed by compression molding in a mold.
Gas generator for airbags. 290. The coolant / filter means comprises:
A stainless steel wire mesh is formed in a cylindrical body, and this cylindrical body is
Direction to form a plate, and this plate is multiplexed into a cylinder.
Winding to form a laminate, and compression molding this laminate in a mold
287. The gas generator for an airbag according to claim 287. 291. The coolant / filter means comprises a wire
It is made of a wire mesh having a diameter of 0.3 to 0.6 mm, and has a wire diameter of 0.
1.5 to 2.0 mm thick made of wire mesh of 5 to 0.6 mm
290. Gas generation for an airbag according to claim 290, comprising:
vessel. 292. The coolant / filter means comprising:
0-65 mm outer diameter, 30-55 mm inner diameter, and 19
287. Air according to claim 287, having a height of ~ 37.5mm.
Gas generator for bags. 293. The coolant / filter means having a wire diameter
0.3-0.6mm flat braided wire mesh in the radial direction
Compression molded in the direction and the axial direction, 3.0-5.0g
/ Cm^Three287. The airbag of claim 287, having a bulk density of
For gas generator. 294. The coolant / filter means comprises:
293. The airbag of claim 293, wherein the airbag has a thickness of
Gas generator. 295. The coolant / filter means comprises:
A stainless steel wire mesh is formed in a cylindrical body, and one end of this cylindrical body is
Part is repeatedly bent outward to form an annular laminate,
293. The laminate formed by compression molding in a mold.
Gas generator for airbags. 296. The coolant / filter means comprises:
A stainless steel wire mesh is formed in a cylindrical body, and this cylindrical body is
Direction to form a plate, and this plate is multiplexed into a cylinder.
Winding to form a laminate, compression molding this laminate in a mold
293. The gas generator for an airbag according to claim 293. 297. The coolant / filter means comprises a wire
It is made of a wire mesh having a diameter of 0.3 to 0.6 mm, and has a wire diameter of 0.
1.5 to 2.0 mm thick made of wire mesh of 5 to 0.6 mm
296. Gas generation for an airbag according to claim 296, comprising:
vessel. 298. The coolant / filter means comprises:
0-65 mm outer diameter, 30-55 mm inner diameter, and 19
293. Air according to claim 293, having a height of ~ 37.6mm.
Gas generator for bags. 299. An outer periphery of said coolant / filter means
298. The airbag according to claim 298, wherein the portion includes a bulge suppressing layer.
Gas generator. 300. The method according to claim 300, wherein the swelling suppressing layer comprises a coolant / fill.
Wire mesh formed on the outer periphery of the
Loss at normal temperature at a flow rate of 100 l / min
299. The filter of claim 299 which is smaller than the filter means.
Gas generator for airbags. 301. The swelling suppressing layer is formed of a coolant / fill
30. A porous cylindrical body fitted on the outer peripheral surface of the data means.
10. The gas generator for an airbag according to claim 9. 302. Area of a gas passage in a radial cross section
St is relative to the sum At of the opening area of each gas outlet.
107. An airbag gas according to claim 106, which is equal to or larger than said gas.
Generator. 303. The ratio of the area St to the total sum At
The air according to claim 302, wherein the value St / At is 1 to 10.
Gas generator for bags. 304. The ratio of the area St to the total sum At
The airbag of claim 302, wherein the value St / At is 2-5.
For gas generator. 305. The coolant / filter means is normally
Flow rate 100 l / min / cm at temperature^Two0.3 × 10
^-2~ 1.5 × 10^-2kg / cm^TwoWith a pressure loss of
107. The gas generator for an airbag according to claim 106. 306. The coolant / filter means:
3.0-5.0 g / cm^Three2. The method of claim 1, wherein the bulk density is
06. A gas generator for an airbag according to 06. 307. The coolant / filter means comprising a wire
306. A wire mesh having a diameter of 0.3 to 0.6mm.
Gas generator for airbags. 308. The gap has a radial distance of 1.0 to 1.0.
107. The airbag of claim 106 having a size of 4.0 mm.
Gas generator. 309. The outer peripheral swelling prevention layer is provided with
108. The swelling of claim 107, wherein bulging of the filter / filter means is suppressed.
Gas generator for airbags. 310. The outer peripheral swelling prevention layer is formed by
G / a porous cylindrical body fitted to the outer peripheral surface of the filter means.
309. The gas generator for an airbag according to claim 309. [311] The outer peripheral bulge suppressing layer is formed of the cooling water.
G / a wire mesh layer formed outside the filter means
310. The gas generator for an airbag according to claim 309. 312 further comprising a housing disposed within said housing.
Having an inner cylinder in which the ignition means is located
An ignition means accommodating chamber for the gas generating agent and the
Includes a combustion chamber for containing coolant / filter means
107. The gas generator for an airbag according to claim 106. 313. The coolant / filter means comprises:
Even after combustion of the generator, its dimensional integrity and
107. The gas generator for an airbag of claim 106, wherein the gap is maintained. 314. The housing includes a top plate, a bottom plate and the housing.
Including the outer peripheral wall including the The coolant / filter means extends between the top and bottom plates.
Has a long, substantially cylindrical structure, Further, the coolant / filter means and the top are provided in the combustion chamber.
An annular shield extending at least over the abutment between the plates
The gas outlet of the combustion gas to the gas outlet.
Short path between the coolant / filter means and the top plate
Stop, 108. The gas generator for an airbag according to claim 107. 315. The gas generating agent is a non-azide substance.
And the total surface of the opening with respect to the amount of gas generated by the gas generating agent.
0.50-2.50cm^Two/ mol and gas generator
The maximum internal pressure of this is 100-300 kg / cm^TwoTo
108. The gas generator for an airbag of claim 107, controlled. 316. The gas generating agent is a non-azide substance.
And the total surface of the opening with respect to the amount of gas generated by the gas generating agent.
0.50-2.50cm^Two/ mol and gas generator
The maximum internal pressure of this is 100-300 kg / cm^TwoTo
109. The gas generator for an airbag of claim 108, controlled. 317. A circular portion having no machined hole,
It has a plurality of gas outlets formed on the outer periphery of the circular portion
A peripheral wall portion extending radially outward at a distal end portion of the peripheral wall portion.
A diffuser shell having a flange portion
A space is formed with the fuser shell, and a circular portion and the circular shape are formed.
Center hole formed in the center of the part and the outer periphery of the circular part
A peripheral wall portion to be formed, and a radially outer portion at a tip portion of the peripheral wall portion.
From the closure shell having a flange portion extending to
Housing A central hole of the closure shell in the space;
Ignition means; The ignition device is disposed in the space so as to surround the ignition means.
Gas generating means ignited by a stage to generate combustion gas
When, Inner peripheral wall of the space accommodating the gas generating means inside
For cooling the combustion gas and removing the combustion residue.
Coolant / filter means for performing collection; The flange portion of the diffuser shell and the closure
Characterized in that it is joined to the shell flange
Gas generator for airbags. 318. The diffuser shell and the claw
Each Jacquell is made by press forming a plate
317. A gas generator for an airbag according to item 317. 319. A flange portion of the diffuser shell
Is a contractor that has a mounting part for the pad module mounting bracket.
317. The gas generator for an airbag of claim 317. 320. The flange portion of a diffuser shell
And the flange of the closure shell are joined by welding
317. The gas generator for an airbag of claim 317, wherein 321. The circular portion of the diffuser shell and
Both or one of the circular portions of the closure shell
Both or one of the rib-shaped reinforcement and the reinforcement step
317. The gas generator for an airbag of claim 317 formed.
vessel. 322. The center hole of the closure shell is
Has an axial bent portion for disposing the ignition means at the edge of the hole
317. The gas generator for an airbag of claim 317. 323. On the axially central cross section of said housing
At or near the diffuser shell franc
The flange part and the flange part of the closure shell
317. The gas for an airbag according to claim 317, wherein the gas is attached and bonded.
Generator. 324. The diffuser shell and the claw
Jacques are each 1.2-3.0 mm thick gold
317. The gas generator for an airbag according to claim 317, comprising a metal plate.
vessel. 325. The metal plate is a stainless steel plate, nickel
Steel plate or aluminum alloy plate
324. The gas generator for an airbag according to claim 324. 326. The diffuser shell and the claw
Jaschels each have an outer diameter of 45-75 mm
317. The gas generator for an airbag of claim 317. 327. A front surface of the diffuser shell from an upper surface thereof.
The height to the bottom of the closure shell is 25-40mm
317. The gas generator for an airbag according to claim 317, wherein 328. A housing having a plurality of gas outlets
, Ignition means provided in the housing, and ignition means
Gas generating means and gas generating means
Instead of coolant / filter means, The gas generating means is a solid which can be ignited by the ignition means.
A non-azide substance, The coolant / filter means extends through a central cylindrical member;
An inner peripheral surface of the coolant / filter, arranged facing the hole
A flameproof plate that covers the
Gas generation for airbags to be passed through the combustion chamber
vessel. 329. The coolant / filter means, wherein:
Has support members to prevent runt / filter movement
328. The gas of claim 328, wherein the support member includes the flameproof plate.
Generator. 330. The flameproof plate has a height of about 8 to 15 mm.
327. The gas generator for an airbag of claim 328. 331. The cooling / filtering means further comprising:
The gap defined by the circumference and the inner surface of the peripheral wall of the housing
And the gap is formed by the combustion of the gas generating agent.
Increases uniformity of combustion gas flow through the runt / filter
327. The gas generator of claim 328. 332. A top plate, a bottom plate and a plurality of gas outlets.
A housing having an outer peripheral wall including: Ignition means disposed in the housing; The ignition means is disposed around the ignition means.
A gas generant consisting of a solid non-azide substance, Coolant / fill disposed around the gas generant
Data means, In the combustion chamber, the coolant / filter means and the top plate
Extending at least over the abutment between the combustion gases
The coolant / filter means and the top plate to the outlet;
Rings to prevent short paths between at least one of the bottom plates
A gas generator for an airbag including a shield. 333. The annular shield comprises a coolant / filler.
A circular portion for closing the opening at the end of the filter means and an integral shape with the circular portion
And contact the inner peripheral surface of the coolant / filter means.
34. A plate member including a peripheral wall portion in contact therewith.
2 gas generator. 334. An ignition for arranging said ignition means.
A wall defining a means accommodating chamber, wherein the plate member is
Having a central hole in the circular portion that fits over the outer peripheral portion of
334. The gas generator of claim 333. 335. The housing may include a diffuser shell.
Including closure shell, The diffuser shell is A first circular portion having no hole therein, Formed on the outer periphery of the first circular portion and having the gas outlet;
A first peripheral wall portion, Extending radially outward at the free end of the first peripheral wall
Having a first flange portion, The closure shell is A second circular part, A central hole formed in the center of the second circular portion, A second peripheral wall portion formed on the outer periphery of the second circular portion, Extending radially outward at the free end of the second peripheral wall
A second flange portion, The closure shell, together with the diffuser shell
Form a space in it, The ignition means is disposed in the central hole of the closure shell.
, 333. The gas generator of claim 332. 336. The housing as A cylindrical portion having a plurality of gas outlets, And sidewall portions disposed at both ends of the cylindrical portion, The ignition means is disposed on one of the side walls;
332. The gas generator of claim 332. 337. An outer peripheral wall of the housing and the cooler
Inclined to the central axis of the gas generator between
A part is formed on the inner peripheral surface of the housing.
332. The gas generator for an airbag of claim 332. 338. The method as claimed in claim 338, wherein:
At least one end surface is welded to the inner surface of the housing.
330. The gas generator for an airbag of claim 332, which is secured. 339. A housing having a plurality of gas outlets
And Ignition means disposed in the housing; Ignition by the ignition means disposed in the housing;
Gas generation, which is a solid non-azide substance
Crude drugs, A coolant disposed around the solid gas generating agent /
Filter means; Between the gas generating agent and the inner peripheral surface of the coolant / filter means.
Including a perforated basket
A gas generator for airbags. 340. The perforated basket comprises
The non-azide gas generating agent is in contact with the inner peripheral surface.
339. An airbag gas generator. 341. The perforated basket is
339. The airbag of claim 339, comprising a plurality of through holes therein.
Gas generator. 342. The dimensions of each through hole are
The basket is in direct contact with the inner peripheral surface of the non-azide gas generating agent.
341. The air of claim 341, wherein the air is determined to prevent contact.
Gas generator for bags. 343. The total area of said through holes is
The pressure outside the storage basket is the non-azide gas generant
When the gas is generating gas, the perforated basketball
Determined to be substantially equal to the pressure inside the
340. The gas generator for an airbag of claim 340. 344 further comprising a flame disposed within said housing;
Central cylindrical portion having a through hole for use and forming an ignition means accommodation chamber
Material, and the perforated basket is
It is arranged facing the through hole in the member and covers the inner peripheral surface.
A flameproof plate portion, wherein the through hole extends from the igniter to the combustion chamber.
339. The air of claim 339, adapted to pass a flame.
Gas generator for bags. 345. The flameproof plate has a height of about 8 to 15mm.
344. The gas generator for an airbag of claim 344. 346. The flameproof plate is for the flame of the central cylindrical member.
4. The method according to claim 3, wherein said hole extends at least 2 mm below said through hole.
44 gas generators. 347. The coolant / filter means
Defined by the outer periphery and the inner surface of the outer peripheral wall of the housing
A gap, the gap being the entirety of the coolant / filter means.
Increases the uniformity of the flow of the combustion gas of the gas generant through the body
70. The gas generator for an airbag of claim 69. 348. The coolant / filter means
Defined by the outer periphery and the inner surface of the outer peripheral wall of the housing
A gap, the gap being the entirety of the coolant / filter means.
Increases the uniformity of the flow of the combustion gas of the gas generant through the body
71. The gas generator for an airbag of claim 70. 349. The cooling / filtering means of claim
Defined by the outer periphery and the inner surface of the outer peripheral wall of the housing
A gap, the gap being the entirety of the coolant / filter means.
Increases the uniformity of the flow of the combustion gas of the gas generant through the body
72. The gas generator for an airbag of claim 71. 350. The coolant / filter means
Defined by the outer periphery and the inner surface of the outer peripheral wall of the housing
A gap, the gap being the entirety of the coolant / filter means.
Increases the uniformity of the flow of the combustion gas of the gas generant through the body
78. The gas generator for an airbag of claim 78. 351. The coolant / filter means
Defined by the outer periphery and the inner surface of the outer peripheral wall of the housing
A gap, the gap being the entirety of the coolant / filter means.
Increases the uniformity of the flow of the combustion gas of the gas generant through the body
80. The gas generator for an airbag of claim 79. 352. A housing having a plurality of gas outlets.
An ignition means disposed in the housing;
A gas generating agent contained around the step,
The agent is a solid non-azide substance ignitable by the ignition means.
Coolant / filter means around the gas generant.
Is a gas generator provided with a gas generating agent.
The total area of the above gas outlets is 0.50 to 2.50
cm^Two/ mol, and the maximum internal pressure during operation of the gas generator is
100 ~ 300kg / cm^TwoCharacterized by being controlled
Gas generator for airbags. 353. The gas outlet has a circle-equivalent diameter of 2 to 5 mm.
352. The gas generator for an airbag of claim 352. 354. The total area of gas outlets / the amount of generated gas is 1.00.
~ 1.50cm^Two/ mol, maximum internal pressure during operation is 130 ~ 180kg / cm^Twoso
352. An airbag according to claim 352, wherein
Gas generator. 355. The volume inside the housing is within 120cc.
352. The gas for an airbag of claim 352.
Generator. 356. A gas generating agent comprising 70 kg / cm^TwoUnder pressure
Generation of non-azide gas with linear burning rate of 30mm / sec or less
352. The airbag of claim 352, wherein
Gas generator. 357. The plurality of gas generators controlling combustion of the gas generating agent.
The gas outlet of the housing and / or inside the housing
The gas generated from the gas generating agent stored in the
Characterized in that it is provided on the partition wall in the direction in which it passes.
352. The gas generator for an airbag of claim 352. 358. Combustion residue discharged from said gas discharge port
156. The method of claim 154, wherein the total weight of the is less than or equal to 2 g.