JPH09123991A - Hull structure of small boat - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To make it easier for a driver to stabilize his / her body when turning suddenly with a simple structure. SOLUTION: An operating handle provided on the center line of the hull and a straddle type seat seat 21 provided on the rear side of the operating handle are provided, and the foot steps 6 on both sides of the straddle type seat seat 21 are provided. At least a part of the pedestal-type seat 21 includes a seat base 3 in which both the inner ends of the foot step 6 are raised, and the pedestal-type seat 21 has an inclined surface with a lower inner end 65 and a higher outer end 64. , The inclination angle β of the side surface of the seat base 3 with respect to the vertical plane 102, and the horizontal plane 101
The width of the seat base 3 is gradually narrowed toward the upper side so that the inclination angle α of the foot step 6 with respect to is substantially equal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hull structure of a small boat provided with an operating handle and a straddle type seat on the rear side of the hull centerline.

[0002]

2. Description of the Related Art Recently, water jet propulsion boats, which are equipped with water jet propulsion machines and are capable of gliding over the sea at high speed to perform various operations such as sudden turns and sudden stops, have been widely used. As this water jet propulsion boat, an operating handle is provided on the center line of the hull, and a straddle type seat seat for the driver is provided on the rear side of the operating handle, and a foot step on which the driver rests his feet on both sides. Are formed. Then, the driver grips the operation handle and straddles the seat so that his / her foot is placed on the foot step and the driver operates.

[0003]

In the above structure, when the driver performs a driving such as a sharp turn, the driver's seat is pinched by the inner thigh to stabilize the body, and the foot is placed on the foot step. However, since the foot step is formed horizontally, it is difficult to apply force.

The present invention has been made in order to solve such conventional problems, and provides a hull structure of a small vessel which has a simple structure and which makes it easy for a driver to stabilize his / her body.

[0005]

The invention according to claim 1 has an operation handle provided on the center line of the hull and a straddle type seat provided on the rear side of the operation handle. At least a part of the foot steps on both sides of the seat is formed by an inclined surface having a lower inner end and a higher outer end.

In the above invention, the passenger can put his / her foot on the inclined surface without greatly bending the ankle in the width direction of the hull. Therefore, it is possible to strongly press the foot on the foot step at the time of turning, and it is possible to make a sharp turn.

According to a second aspect of the present invention, the above-mentioned straddle-type seat has a seat base formed by rising both inner ends of the foot step, and the inclination angle of the side surface of the seat base with respect to the vertical plane and the horizontal plane. The footstep inclination angle with respect to is almost equal.

In the above invention, the angle between the side surface of the seat and the foot step is substantially right. Therefore, with the inner legs of both feet sandwiching the sides of the seat base to stabilize the body, the passenger should place his foot on the footstep without bending the ankle in the width direction of the hull, and place it on the footstep when turning. With, you can hold your foot strongly, and you can turn sharply while stabilizing your body.

According to a third aspect of the present invention, the front end of the foot step is formed on a rearwardly inclined surface which is inclined rearward so as to be higher toward the front, while the rear end of the foot step is higher toward the rear. The inclined surface is formed so as to incline forward, and the inclined surface is continuously formed from the backward inclined surface to the forward inclined surface.

In the above invention, since the inclined surface is continuously formed from the rearwardly inclined surface to the forwardly inclined surface, when water is washed up on the foot step, the water is large on the seat base side and small on the bulwark side. For example, it will be accumulated unevenly on the foot step. Therefore, if water accumulates on the footsteps, and if the water makes your feet slippery,
While moving the foot to the bulwark side, if you want to clean the foot, move the foot to the seat base side, etc.By moving the foot on the footstep according to the occupant's preference, firmly press the foot on the footstep It is possible to remove dirt from your feet as well.

[0011]

1 and 2, an operating handle 20 is installed on the hull 1 of a small boat on the center line of the hull near the center of the hull, and on the rear side of the hull 1 extends in the stern direction on a seat base 3. Straddle type driver seat 21
Also, a rear seat seat 22 is provided, and foot steps 6 on which people on the seat seats 21 and 22 can put their feet are formed on both sides thereof. The seat base 3 rises from the inner ends 65 of the foot steps 6 on both sides and is formed by the rising walls thereof, and also the outer ends 64 of the foot steps 6 are formed.
The bulwark 12 is formed by standing up. The seat base 3 is formed such that the side surface is inclined so that the width becomes gradually narrower toward the upper side, and the inclination angle β with respect to the vertical line 102 is β.
Are formed at approximately 5 ° in this example. The reason for inclining in this way is to make it easier for a person who straddles the driver's seat 21 to grip the seat base 3 with his inner leg to stabilize his body.

A rear inclined surface 61 is formed at the front end of the foot step 6 so as to become higher toward the front, and at the rear end of the foot step 6 so as to become higher toward the rear. An inclined front inclined surface 62 is formed, and the rear inclined surface 61 and the front inclined surface 62 are formed continuously through the foot step 6. A foot step 63 on which a person sitting on the rear seat 22 rests his or her foot is formed on the rear side of the front inclined surface 62. Although the foot step 63 is formed on a horizontal plane, it may be formed so as to be inclined in the ship width direction similarly to the foot step 6. Further, the foot step 6 is formed as an inclined surface having a lower inner end and a higher outer end so that the inclination angle α with respect to the horizontal plane 101 is approximately 5 ° in the ship width direction, and the foot step 6 and the foot stand 3 are connected to each other. It is formed so that the angle with the step 6 is substantially right. The above α and β are 3 ° to
It is preferable to set it within the range of 10 °. The foot step 6 does not need to have a uniform inclined surface from the inner end 65 to the outer end 64 in the ship width direction.
A horizontal plane may be provided on the way, or the inclination angle may change on the way. In short, an inclined surface may be provided between the inner end 65 and the outer end 64 so that the outer end 64 is higher than the inner end 65.

The driver seat 21 is provided with a locking means (not shown) at its rear end and is detachably attached to the upper surface of the seat base 3, and the rear seat is covered so as to cover the locking means. The seat 22 is detachably attached to the upper surface of the seat base 3. An inspection opening 32 of the engine 5 is formed by the hatch combing 31 on the lower side of the driver's seat 21. The driver's seat 21 constitutes a cover of the inspection opening 32 of the engine 5,
The inspection port 32 of the engine 5 can be opened by removing the driver seat 21.

Further, a U-shaped grip member 8 in plan view is provided so as to cover both sides of the rear seat 22 and the rear base.
Is attached so that an underwater person grips the rear end of the grip member 8 when boarding from the stern end. Further, an engine 5 is installed inside the hull 1 near the center in the longitudinal direction on the hull centerline, supported by an engine bracket 11, and a water jet propulsion device 4 extending to the stern end is installed behind the engine 5. The shaft 43 of the impeller 40 that rotates inside the water jet propulsion device 4 is connected to the drive shaft of the engine 5. The water jet propulsion device 4 is provided with a water introduction port 42 opening at the bottom of the ship, and water is introduced from the water introduction port 42 by the rotation of the impeller 40 and jetted in a rearward predetermined direction from the steering nozzle 41 at the stern of the hull. To generate propulsion and turning force.

An exhaust expansion chamber 51 of the engine 5 is disposed above one side of the engine 5, and a tip end of a first exhaust pipe (hose) 59 derived from the exhaust expansion chamber 51 is located on one side of the water jet propulsion unit 4. The second exhaust pipe 53 connected to the water lock 52 arranged in the section extends in the width direction of the hull toward the upper side on the center line of the hull, and then bends to extend obliquely rearward and downward from the upper side. , Water jet propulsion machine 4
It opens to the stern pump room where A steering nozzle 41 is provided at the rear end of the water jet propulsion device 4.

An intake silencer 56 is arranged above the other side of the engine 5, a carburetor 57 is arranged inside the intake silencer 56, and an ignition plug 55 is arranged above the engine 5. Further, the exhaust expansion chamber 51 and the intake silencer 56 are arranged such that the upper ends thereof are located above the inspection port 32. Therefore, the exhaust expansion chamber 51 and the intake silencer 56 can be easily inspected and maintained.

In the above structure, when the hull 1 is slid, the driver puts his / her foot on the foot step 6 while straddling the driver's seat 21, and the fellow passenger seats the rear seat 22.
The feet are placed on the foot step 63 across the floors, and the seat pedestal 3 is sandwiched between the inner legs (knee grip) to stabilize the body. In that state, the seat base 3 is inclined so that the width becomes gradually narrower toward the upper side, and the foot step 6 is inclined inward so that the angle formed by the side surface of the seat base 3 is substantially right angle. For this reason, the foot can be placed on the foot step 6 without bending the ankle in the width direction of the hull, and the foot can be strongly pressed on the foot step 6 when turning, so that a sharp turn can be made while stabilizing the body. It will be possible. Further, it can be said that the legs are extended forward and supported by the rearward slope 61, or the legs are rearwardly extended and supported by the frontward slope 62. Similarly, when the foot step 63 is also tilted inward, a person straddling the rear seat 22 can easily stabilize his / her body as well.

Further, the foot step 6 is formed continuously from the rearward inclined surface 61 to the frontward inclined surface 62, the inner end is raised to form the seat base 3, and the outer end is raised to form the bulwark 12. When the water 60 is washed up on the foot step 6, a large amount of water is collected on the side of the seat base 3 and a small amount of water on the side of the bulwark 12, and the water is unevenly collected on the foot step 6. Therefore, when the water 60 accumulates on the foot step 6, if the foot is slippery due to the water, the foot is moved to the bulwark 12 side, while if the foot is to be cleaned, the foot is moved to the seat base 3 side. By moving the foot on the foot step 6 according to the occupant's preference, the foot can be strongly pressed on the foot step 6, and the dirt on the foot can be easily removed.

[0019]

According to the first aspect of the present invention, a passenger can put his / her foot on the inclined surface without bending the ankle in the width direction of the ship. Therefore, it is possible to strongly press the foot on the foot step at the time of turning, and it is possible to make a sharp turn.

According to the second aspect of the invention, the angle between the side surface of the seat and the foot step is substantially right. Therefore,
With the inboard legs of both feet sandwiching the sides of the seat base to stabilize the body, place the foot on the footstep without bending the ankle in the width direction of the hull, and place the foot on the footstep when turning. You can squeeze strongly, and you can make sharp turns while stabilizing your body.

According to the third aspect of the present invention, since the inclined surface is continuously formed from the rearward inclined surface to the forward inclined surface, when the water is launched onto the foot step, a large amount of water is present on the side of the seat base, and the bulwarks are present. It will accumulate unevenly on the footstep, such as less on the side. Therefore, when water accumulates on the foot step, if the foot slips easily due to water, move the foot to the bulwark side, while if you want to clean the foot, move the foot to the seat base side, etc. By moving the foot on the foot step, the foot can be strongly pressed on the foot step, and dirt on the foot can be easily removed.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line AA of FIG.

FIG. 2 is a side view of a hull showing an embodiment of the present invention.

[Explanation of symbols]

 1 Hull 3 Seat Stand 4 Water Jet Propulsion Machine 5 Engine 6 Foot Step 12 Blu-work 20 Operating Handle 21 Driver's Seat Seat 61 Rear Slope 62 Front Slope

Claims (3)

[Claims] 1. An operation handle provided on a center line of a hull, and a straddle type seat seat provided on the rear side of the operation handle, and at least one foot step on both sides of the straddle type seat seat. A hull structure of a small vessel, characterized in that the part is formed by an inclined surface having a low inner end and a high outer end. 2. The above-mentioned straddle-type seat has a seat base formed by standing up both inner ends of a foot step, and an inclination angle of a side surface of the seat base with respect to a vertical plane,
2. The hull structure of a small boat according to claim 1, wherein the width of the seat base is gradually narrowed toward the upper side so that the inclination angle of the foot step with respect to the horizontal plane is substantially equal. 3. The front end of the foot step is formed on a rearwardly inclined surface so as to become higher as it goes forward, while the rear end of the foot step becomes forwardly higher as it goes backward. The hull structure of a small boat according to claim 1 or 2, wherein the hull structure is formed on the forward inclined surface, and the inclined surface is continuously formed from the backward inclined surface to the forward inclined surface.