JP2001229771A - Rubber cover and switch member - Google Patents

Abstract

(57) [Summary] (Modifications) [PROBLEMS] To provide a rubber cover capable of effectively protecting a code switch and having excellent code switch sensitivity, and a switch member including the code switch in the rubber cover. . (1) A base portion 51 to be incorporated into a mounting partner member, and a pressure deforming portion 52 having an internal space 53 for enclosing a code switch and made of a rubber elastic insulator. In the rubber cover 50, a reinforcing portion 54 having high mechanical strength is integrally provided on the base portion side of the pressure deforming portion. (2) A pressurized deformable portion 52 having a base portion for incorporation into a member to be attached and a cavity 53 for inclusion, and being deformable.
In a switch member including a cord switch in the internal space of the rubber cover having a rubber cover, the rubber cover integrally includes a reinforcing portion 54 having a large mechanical strength on the base side of the pressure deforming portion. A switch member characterized by being provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber cover and a switch member. More specifically, the present invention relates to a rubber cover for enclosing a code switch configured to operate the switch when pressure is applied to an insulator, and a switch member including the code switch in the rubber cover. It is.

[0002]

2. Description of the Related Art In recent years, opening / closing devices with automatic opening / closing functions for doors, windows, shutters, and the like of buildings, stores, automobiles, garages, and the like have been widely used. With the spread of such an opening / closing device with an automatic opening / closing function, the number of accidents injured by the opening / closing device with an automatic opening / closing function is increasing.

In order to prevent such accidents, a cord switch has been attached to an opening / closing portion of an opening / closing device having an automatic opening / closing function.

FIG. 3 is a sectional view showing a first conventional example of a code switch.

In FIG. 3, reference numeral 10 denotes a cord switch of the first conventional example, 11 denotes a substantially rectangular hollow insulator made of a rubber elastic material or the like, 12 denotes a rectangular conductive member of an electrode, and 14 denotes an electrical insulation function between the conductive members 12. This is an insulating gap for exhibiting the effect.

That is, as can be seen from FIG. 3, in the cord switch 10 of the first conventional example, two rectangular conductive members are formed on the inner peripheral surface of the substantially rectangular hollow insulator 11 having the insulating space 14 provided on the inner peripheral surface. The member 12 is fixed.

FIG. 4 is a sectional view showing a second conventional code switch.

In FIG. 4, reference numeral 20 denotes a cord switch of the second conventional example, 21 denotes a substantially cylindrical insulator made of a rubber elastic body or the like,
Reference numeral 22 denotes a round conductive member of the electrode, and reference numeral 24 denotes an insulating gap for exhibiting an electrical insulating function between the round conductive members 22.

That is, as can be seen from FIG. 4, in the cord switch 20 of the second conventional example, the inner peripheral surface of the substantially cylindrical insulator 21 provided with the insulating gap 24 has four round conductive members. The member 22 is fixed in a spiral shape in the longitudinal direction.

Here, the four round conductive members 22 are arranged in a spiral shape so that the switch function can be exhibited when the cord switch 10 is pressed from any direction.

The cord switch 10 of the first conventional example and the cord switch 20 of the second conventional example are rarely incorporated into windows, shutters, and the like as they are, and are usually housed in a cord switch accommodating rubber member. Then, they are built into windows, shutters, etc.

FIG. 5 is a cross-sectional view showing a first conventional rubber cover which is frequently used as a rubber member for accommodating such a cord switch.

In FIG. 5, reference numeral 30 denotes a rubber cover of the first example of the related art, 31 denotes a base portion when it is incorporated into a mounting partner, 32
Is a pressure deforming portion that is deformed when a pressure is transmitted to the code switch, and 33 is a not-shown code switch, for example, an enclosing gap for enclosing the code switch 10 of the first conventional example.

That is, the rubber cover 30 of the first conventional example is a substantially rectangular hollow body, the lower side of which is a base portion 31 for assembling into a mounting counterpart, and the upper side thereof is a cord switch. A pressure deforming portion 32 that deforms when transmitting pressure is formed, and a central part of the pressure deforming portion 32 is a cord switch (not shown), for example, an enclosing member for enclosing the cord switch 10 of the first conventional example. A rectangular gap 33 is opened.

FIG. 6 is a sectional view showing a second conventional rubber cover.

In FIG. 6, reference numeral 40 denotes a rubber cover according to the second conventional example, 41 denotes a base portion when it is incorporated into a mounting partner, 42
Reference numeral 43 denotes a pressure deforming portion that deforms when a pressure is transmitted to the code switch. Reference numeral 43 denotes a circular gap for enclosing a code switch (not shown), for example, the code switch 20 of the second conventional example.

That is, the rubber cover 40 of the second conventional example is a substantially cylindrical body, the lower side of which is a base portion 41 for assembling with the mating side, and the upper side thereof is pressed against the cord switch. Deformation part 4 which deforms when transmitting
In the center of the pressure deforming portion 42, a not-shown code switch, for example, a circular void 43 for inclusion for containing the code switch 20 of the second conventional example is opened.

The pressurized deformation portion 32 of the rubber cover 30 of the first conventional example has a structure in which the cord switch 10 enclosed in the rectangular space 33 for inclusion is operated with a light pressing load and is made of a soft material. I have.

Similarly, the pressure deformable portion 42 of the rubber cover 40 of the second conventional example has a structure in which the cord switch 20 enclosed in the circular space 43 for inclusion is operated with a light pressing load and is made of a soft material. Have been.

Conventionally, the soft material of the pressure deforming portion 32 of the rubber cover 30 of the first conventional example and the soft deformable portion 42 of the rubber cover 40 of the second conventional example have excellent weather resistance and ozone resistance. Ethylene propylene rubber (hereinafter referred to as EP rubber) is used.

On the other hand, the cord switch 10 of the first conventional example or the cord switch 20 of the second conventional example is a rubber cover 30 of the first conventional example or a rubber cover 40 of the second conventional example.
After that, it is being incorporated into windows, shutters, and the like that receive a heavy object falling or a large impact force after being included in the device.

[0022]

However, the rubber cover 30 of the first conventional example or the rubber cover 40 of the second conventional example is essentially made of a soft material, so that a heavy object falls or a large impact is applied. There is a concern that the cord switch 10 may be damaged when subjected to a force, thereby damaging the cord switch 10 of the first conventional example, the cord switch 20 of the second conventional example, and the like.

The code switch 1 of the first conventional example as described above.
0 and the pressure switch 32 of the rubber cover 30 of the first conventional example and the pressure deformation of the rubber cover 40 of the second conventional example in order to prevent damage and failure of the cord switch 20 of the second conventional example and the like. It is also conceivable that the part 42 is made of a hard material having high mechanical strength.

However, when the press deforming portion 32 of the rubber cover 30 of the first conventional example and the press deforming portion 42 of the rubber cover 40 of the second conventional example are made of a hard material, they are not deformed unless the pressure is strong. As a result, the ON pressure of the cord switch 10 of the first example of the related art and the cord switch 20 of the second example of the related art included therein are greatly increased, and the cord switch sensitivity is lowered.

The present invention has been made in view of such a point, and an object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to provide a switch member having a rubber switch and a code switch inside. A rubber cover that can effectively protect the enclosed code switch even if heavy objects fall or receive a large impact force, and that has excellent code switch sensitivity, and the code switch is enclosed in the rubber cover. It is to provide a switch member.

[0026]

The gist of the present invention lies in the following two points.

(1) A base portion to be incorporated into a mating member and an inner space fixed to the base portion for enclosing the code switch, and deformed when transmitting pressure to the code switch. And a pressurized deformable portion formed of a rubber elastic insulator, wherein a reinforcing portion having high mechanical strength is integrally provided on the base side of the pressurized deformable portion. Features rubber cover.

(2) a base portion for incorporation into a mating member; and a gap fixed to the base portion for inclusion,
In addition, in a switch member including a code switch in the internal space of the rubber cover having a pressure deformable portion capable of deforming when transmitting pressure, the rubber cover is the base of the pressure deformable portion. A switch member comprising a reinforcing portion having high mechanical strength integrally provided on a portion side.

That is, the inventor of the present invention has found that damage to the rubber cover occurs at a position in contact with the base of the pressurized deformation portion, solves the damage problem, and maintains the conventional excellent cord switch sensitivity. is there.

[0030]

Next, an embodiment of the present invention will be described.

In the present invention, the reinforcing portion is composed of a plate-like body fixed between the upper surface of the base portion and the lower surface of the pressurizing deformable portion, and the width of the plate-like body is equal to the thickness of the pressurizing deformable portion. It is preferable that the width is 1.5 times or more.

In the present invention, the reinforcing portion constitutes a part of the pressure deforming portion on the base portion side, and the portion is formed of a rubber elastic insulator having a rubber elastic modulus higher than that of the rubber elastic insulator material of the pressure deforming portion. Preferably.

Further, in the present invention, the reinforcing portion constituting the base portion side of the pressure deforming portion has a rubber elastic modulus 1.5 times or more higher than that of the rubber elastic insulator material of the pressure deforming portion. It is preferable that it is made of a rubber elastic insulator.

That is, the present invention comprises an elastic insulator of a predetermined length having a hollow portion, and a plurality of conductive members of a predetermined length, which are held on the inner surface of the insulator and are opposed to each other at intervals. In a rubber cover capable of enclosing a cord switch to be formed, a reinforcing portion is provided at the pressurized deformation portion.

As the material of the reinforcing portion, the rubber elastic modulus of the rubber elastic insulator material used for the other pressure deforming portion is set to 1.
It is preferable to use a rubber elastic insulator material that is five times or more. This is because the reinforcing effect is insufficient when the rubber elastic modulus is 1.5 times or less.

It is also effective that the width of the reinforcing portion is at least 1.5 times the thickness of the pressure deforming portion. This is because the reinforcing effect is insufficient when the thickness is 1.5 times or less the thickness of the deformed portion.

It is preferable that the reinforcing portion is provided so that it is difficult to further deform the cord switch beyond the amount of deformation to be turned on.

As the reinforcing portion, there is a method of embedding a resin or metal as a reinforcing material in a rubber elastic insulator material.

[0039]

Next, an embodiment of the rubber cover and the switch member of the present invention and a conventional comparative example will be described.

(Rubber Cover of First Embodiment) FIG. 1 is a sectional view showing a first embodiment of a rubber cover according to the present invention.

In FIG. 1, reference numeral 50 denotes a rubber cover according to the first embodiment of the present invention; 51, a wide base portion for incorporation into a mounting counterpart; 52, a pressure deforming portion which deforms when transmitting pressure to a cord switch; Is a code switch not shown,
For example, voids for inclusion for containing the cord switch 10 of the first example of the related art, and 54, 54 are reinforcing portions.

That is, the rubber cover 5 according to the first embodiment of the present invention.
Numeral 0 denotes a substantially rectangular hollow body, the lower side of which is a wide base portion 51 for assembling with a mating side, and the upper side thereof is a pressure deforming portion which deforms when transmitting pressure to a cord switch. In the center of the pressure deforming portion 52, a cord switch (not shown), for example, a quadrangular void 53 for enclosing the cord switch 10 of the first conventional example is opened.

In FIG. 1, reinforcing portions 54, 54 are provided between the upper surface of both ends of the wide base portion 51 and the lower surface of the pressure deforming portion 52.
Are integrally fixed. Here, the reinforcing portion 54,
The width of 54 is twice the thickness of the pressure deforming portion 53.

Accordingly, the rubber cover 5 according to the first embodiment of the present invention.
In the case of 0, the reinforcing portions 54, 54 having a width twice the thickness of the pressure deforming portion 52 are provided between the upper surface of both ends of the wide base portion 51, which is the weakest in strength, and the lower surface of the pressure deforming portion 52. Because it is integrally fixed, it has excellent durability even under repeated pressure deformation, and also has the effect of a cord switch that is included even when heavy objects fall or receive a large impact force Can be protected.

In addition, since the pressure deforming portion 52 of the rubber cover 50 of the first embodiment of the present invention is made of a soft material, the ON pressure is small and the code switch sensitivity is high.

(Rubber Cover of Second Embodiment) FIG. 2 is a sectional view showing a rubber cover according to a second embodiment of the present invention.

In FIG. 2, reference numeral 60 denotes a rubber cover according to the second embodiment of the present invention; 61, a base portion for assembling with a mating side; 62, a pressure deforming portion which deforms when transmitting pressure to a cord switch; A not-shown cord switch, for example, a circular cavity for inclusion for containing the cord switch 20 of the second conventional example, 64, 64 are pressure deformation portion reinforcing portions.

That is, the rubber cover 6 according to the second embodiment of the present invention.
Numeral 0 is a substantially cylindrical body, the lower side of which is a base part 61 for assembling to the mating side, and the upper side thereof is a pressure deforming part 62 which deforms when transmitting pressure to the cord switch. And a code switch (not shown), for example,
A circular cavity 63 for inclusion for containing the example code switch 20 is opened.

A feature of the rubber cover 60 according to the second embodiment of the present invention is that the both end portions of the pressure deforming portion 62 fixed to the base portion 61 are pressure deforming portion reinforcing portions 64, 64. is there. Here, the pressurized deformation portion reinforcing portions 64, 6
Numeral 4 is made of a high elastic modulus rubber material whose elastic modulus is five times larger than that of the soft rubber material of the pressure deforming portion 62. The boundary between the pressure deforming portion 62 and the pressure deforming portion reinforcing portions 64, 64 is formed by vulcanization bonding.

(Switch member of the first embodiment) The cord switch 10 of the first conventional example is included in the rectangular space 53 for inclusion of the rubber cover 50 of the first embodiment of the present invention, thereby providing the switch member of the first embodiment. The switch member was assembled.

(Switch Member of Second Embodiment) The cord switch 20 of the second conventional example is included in the circular gap 63 for inclusion of the rubber cover 60 of the second embodiment of the present invention, thereby providing the switch member of the second embodiment. The switch member was assembled.

(Switch Member of Comparative Example 1) The switch member of Comparative Example 1 was assembled by enclosing the cord switch 10 of the first conventional example in the rectangular space 33 for inclusion in the rubber cover 30 of the first conventional example. .

(Switch Member of Comparative Example 2) By enclosing the cord switch 20 of the second conventional example in the circular void 43 for inclusion of the rubber cover 40 of the second conventional example, the switch member of the second comparative example was obtained.
Was assembled.

(Characteristic Test Method) As a characteristic test, a switch member was subjected to a drop impact test.

In the drop impact test, first, an impact object having a total weight of 1 kg was prepared by putting a weight on a rod having an outer diameter of 4 mm.

Next, an impact object having a total weight of 1 kg was placed at a height of 1 kg.
From 5 cm, they were respectively dropped on the switch members of the example and the comparative example.

Next, a normal cord switch function test was performed on the switch members of the example and the comparative example.

Next, the switch members of the example and the comparative example for which the code switch function test was completed were disassembled, and then the cord switch was examined for damage.

(Characteristic test results) Table 1 shows the characteristic test results.

[0060]

[Table 1]

As can be seen from Table 1, the switch member of Comparative Example 1 and the switch member of Comparative Example 2 did not have a code switching function, and the insulator was torn and the conductive member was disconnected.

On the other hand, the switch member of the first embodiment and the switch member of the second embodiment had a normal code switch function, no abnormality in the insulator, and no abnormality in the conductive member.

[0063]

Industrial Applicability The rubber cover and switch member of the present invention can effectively protect the cord switch contained therein even when subjected to a large impact, thereby significantly improving the reliability of the cord switch. Useful.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a rubber cover according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of the rubber cover of the present invention.

FIG. 3 is a cross-sectional view showing a first conventional code switch.

FIG. 4 is a cross-sectional view showing a second conventional code switch.

FIG. 5 is a cross-sectional view showing a rubber cover of a first conventional example.

FIG. 6 is a sectional view showing a rubber cover of a second conventional example.

DESCRIPTION OF SYMBOLS 10 Code switch of first conventional example 11 Substantially square hollow insulator 12 Rectangular conductive member 14 Insulation gap 20 Code switch of second conventional example 21 Substantially cylindrical insulator 22 Round conductive member 24 Insulation gap 30 Rubber cover 31 of first conventional example 31 Base 32 Pressure deforming part 33 Square void for inclusion 40 Conventional rubber cover 41 Base 42 Pressure deforming part 43 Circular void for inclusion 50 Rubber cover 51 of first embodiment Wide base part 52 Pressure deforming part 53 Square void for inclusion 54 Reinforcement part 60 Rubber cover 61 Second base part 62 Pressure deforming part 63 Circular void for inclusion 64 Pressure deforming part reinforcing part

Claims (5)

[Claims] 1. A base part to be incorporated into a mating member and an inner space fixed to the base part for enclosing the code switch, and deformed when a pressure is transmitted to the code switch. And a pressurized deformation portion formed of a rubber elastic insulator, wherein a reinforcing portion having high mechanical strength is integrally provided on the base side of the pressurized deformation portion. And rubber cover. 2. The reinforcing portion comprises a plate-like member fixed between the upper surface of the base portion and the lower surface of the press-deformable portion, and the width of the plate-like member is 1.1 of the thickness of the press-deformable portion. 2. The rubber cover according to claim 1, wherein the width of the rubber cover is five times or more. 3. The reinforcing portion forms a part of the pressure deforming portion on the base portion side, and the portion comprises a rubber elastic insulator having a rubber elastic modulus higher than that of the rubber elastic insulator material of the pressure deforming portion. The rubber cover according to claim 1, wherein: 4. A rubber elastic member whose rubber elastic modulus is 1.5 times or more higher than that of the rubber elastic insulator material of the pressure deforming portion. 4. The rubber cover according to claim 3, wherein the rubber cover is made of an insulator. 5. A rubber having a base portion for incorporation into a mating member and a pressure deformable portion fixed on the base portion, having a space for inclusion, and being deformable when transmitting pressure. In a switch member including a code switch in the internal space of the cover, the rubber cover is formed by integrally providing a reinforcing portion having high mechanical strength on the base side of the pressure deforming portion. A switch member, comprising: