JPH078667B2 - Vehicle seat mounting structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vehicle seat mounting structure, and particularly when a seat is mounted on a vehicle body frame composed of a pair of left and right side tubes, stability of the supporting state thereof It relates to a structure capable of improving. Since the present invention is most suitable for a saddle-ride type vehicle for running on rough terrain, the following description will be given mainly of a saddle-ride type vehicle for running on an uneven terrain.

[Conventional technology]

For example, in a vehicle with a body frame composed of a pair of left and right side tubes, such as a saddle-ride type vehicle used for sports running on rough terrain, the front portion of the saddle-type seat can be detachably mounted on the body frame. Conventionally, for example, the following structure is available as a structure for attachment. That is, a seat support pipe is installed between the left and right side tubes, a seat support bracket is formed at the center of the pipe in the vehicle width direction, and the bracket is formed at the center of the front bottom surface of the seat bottom plate in the vehicle width direction. The seat mounting structure is configured to engage the hooks.

[Problems to be solved by the invention]

By the way, in the above-mentioned saddle-ride type vehicle for sports traveling, the occupant may move the body largely outward in the vehicle width direction in order to balance the vehicle. In such a case, a large unbalanced load acts on the seat. It will be. When such an eccentric load acts, in the above-described conventional seat mounting structure, the seat front portion is fixed only at one position in the center in the vehicle width direction with respect to the vehicle body frame. Bending or rattling in the vehicle width direction may occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle seat mounting structure that prevents the seat from bending and rattling in the vehicle width direction to further improve the stability of the seat supporting state.

[Means for solving problems]

According to the present invention, in a vehicle seat mounting structure, a receiving member including a leg portion and an engaging portion extending outward in the vehicle width direction is fixed to the upper surfaces of the left and right side tubes of the vehicle body frame, and the front plate of the seat bottom plate is fixed. Hook members extending inward in the vehicle width direction are provided on the left and right vertical wall portions of the hook portion, and when the seat is mounted, the upper surface of the hook member engages with the lower surface of the engaging portion of the receiving member, and the inner end surface of the hook member Is in contact with the outer surface of the leg of the receiving member.

[Action]

In the seat mounting structure for a vehicle according to the present invention, the receiving member of the vehicle body frame and the hook member of the seat engage with each other at both outer ends in the vehicle width direction. That is, the front portion of the seat engages with the vehicle body frame at two points spaced apart from each other, and in this case, the inner end surface of the hook member abuts on the outer surface of the leg portion, so that the front portion of the seat moves in the vehicle width direction. Since it hardly moves to the center of the body frame,
Bending and rattling are less likely to occur than when fixed at points,
As a result, the stability of the seat mounting state is further improved.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 7 are views for explaining one embodiment of the present invention, and this embodiment is an example applied to a saddle type four-wheel vehicle for running on rough terrain. In the figure, reference numeral 1 is a saddle-ride type four-wheeled vehicle, and a body frame 2 of the four-wheeled vehicle 1 has a pair of left and right cradle-shaped side tubes 2a connected by a cross pipe 2b, and a rear portion of the side tube 2a. The seat rail 2c is connected. Then, the left and right front wheels 3 with wide ultra-low pressure tires are mounted on the front part of the body frame 2, and the left and right front wheels 3 with wide ultra-low pressure tires are mounted on the rear part via the rear arm 4.
The right rear wheel 5 is attached. In addition, the body frame 2
An engine 6 is mounted substantially in the center, and a carburetor 6a and an air cleaner 15 are connected to the engine 6. A steering handle 7, a fuel tank 8 covered with a tank cover 8a, and a seat 9 are sequentially mounted on the upper portion of the vehicle body frame 2 from the front.

Then, on the upper surfaces of the left and right side tubes 2a, left and right front seat receiving members 10 for supporting the front portion of the seat 9 are welded and fixed near the connection portion with the seat rail 2c. The front sheet receiving member 10 is formed by press-forming a steel plate into a gate shape, is fixed to the side tube 2a, and extends before being extended.
The rear leg portion 10a and an engaging portion 10b extending outward in the vehicle width direction (left and right direction in FIG. 1) from the upper end between the front and rear leg portions 10a, further front and rear leg portions 10a. A tank support surface 10c and a damper receiving surface 10d are integrally formed on the upper end surface of the fuel tank 8, and the rear end portion of the fuel tank 8 is fixed to the tank support surface 10c. Further, the air cleaner 15 is located behind the front seat receiving member 10 between the left and right side tubes 2a, and the opening of the intake duct 15a of the air cleaner 15 has the left and right front seat receiving members 10a. Located between 10 and 10.

Further, a rear seat receiving member 11 that supports the rear portion of the seat 9 is welded between the rear portions of the left and right seat rails 2c so as to straddle them. After this, the sheet receiving member 11
Is a plate-shaped body made of steel plate, and engaging holes 11a are formed in the left and right portions thereof.

The seat 9 has a cushion member 13 on the upper surface of the seat bottom plate 12.
The seat bottom plate 12 is made of resin and extends substantially parallel to the seat rail 2c. Further, the front portion thereof is inclined upward along the tank cover 8a, so that the seat 9 is shaped so as to cover the seat rail 2c and the tank cover 8a. A hook member 14 is rotatably mounted at the center of the rear end portion of the seat bottom plate 12, and an engaging portion of the hook member 14 is provided.
14c is engageable with the lower central surface of the rear sheet receiving member 11. Further, left and right engaging pins 14a, 14a are planted on the left and right sides of the hook member 14 of the seat bottom plate 12, and left and right damper members 14b, 14b are fixed on the outside thereof. ing. When the seat is attached, the engagement pin 14a
Engage with the engaging hole 11a, and the damper member 14b comes into contact with the upper surface of the rear sheet receiving member 11.

The front side inclined portion of the seat bottom plate 12 is a tank cover.
An inverted U-shaped cross section consisting of a lateral wall portion 12a located behind the 8a and left and right vertical wall portions 12b extending forward from both end surfaces of the lateral wall portion 12a and located on the left and right sides of the tank cover 8a. Is formed in. The left and right vertical wall portions 12b are integrally formed with hook members 12c. The hook member extends inward in the vehicle width direction when viewed in a horizontal cross section (see FIG. 1) and has an inverted L shape when viewed in a vertical cross section (see FIG. 2). Reinforcing ribs 12d are integrally formed on the seat 12, and the reinforcing ribs 12d are fixed to the corners of the seat bottom plate 12. Furthermore, a damper member 12e is fixed inside the hook member 12c of the seat bottom plate 12.

Next, the function and effect of the structure of this embodiment will be described.

In this embodiment, in order to mount the seat 9 on the vehicle body frame 2, the front left and right hook members 12c of the seat 9 are inserted below the engaging portions 10b of the left and right front seat receiving members 10. Then, in this state, the rear portion of the sheet 9 is pressed downward so that the engagement pin 14a is inserted into the engagement hole 11a of the rear sheet receiving member 11. Then, the engagement pin 14a is inserted and engaged in the engagement hole 11a, and the hook member 14 is engaged with the lower surface of the rear sheet receiving member 11. Further, the front damper member 12e presses and abuts the damper receiving portion 10d, and the front hook member 12c engages the lower surface of the engaging portion 10b of the front sheet receiving member 10 with an upward elastic force, and the hook member 12c. Inner end face of the leg 10a
Will come into contact with the outer surface of the.

As described above, in this embodiment, the front seat receiving member 10 is provided at the outer end portion of the vehicle body frame 2, the hook member 12c is integrally formed on the vertical wall 12b which is also the outer end of the seat 9, and the hook member 12c is formed. Since the inner end surface is brought into contact with the outer surface of the leg portion 10a and engaged with each other, the distance between the left and right engaging portions, that is, the support span is widened, and the occupant shifts his / her weight and loads on the seat. There is no rattling in the left or right direction even if the left and right are unbalanced, and the stability of the seat supporting state can be further improved. Further, in this case, since the hook member 12c is located in the vicinity of the corner portion between the vertical wall portion 12b and the horizontal wall 12a of the seat bottom plate 12, its strength is large, and this point also contributes to the stabilization of the seat supporting state. it can.

Further, since the front seat receiving member 10 is provided on the left and right side tubes 2c, it is not necessary to erect a seat supporting pipe as in the conventional case, and as a result, a space is formed in this seat supporting portion, which is the above-mentioned. Thus, for example, it can be used as an installation space for the air cleaner 15 and the intake duct 15a.

In the above embodiment, the damper receiving surface 10d is integrally formed on the leg portion 10a, but in the present invention, the damper receiving surface 10d is separate from the leg portion 10a and the engaging portion 10b and separated from them. You may form in a position. Further, although the saddle-ride type four-wheeled vehicle has been described in the present embodiment, the present invention is not limited to such a type of vehicle, and the point is that it is mounted on a vehicle body frame composed of a pair of left and right side tubes. The vehicle can be applied to any vehicle as long as it has a seat so as to cover the vehicle.

〔The invention's effect〕

As described above, according to the vehicle seat mounting structure of the present invention, the seat receiving members extending outward in the vehicle width direction are fixed to the upper surfaces of the left and right side tubes, and the vertical wall portion of the seat bottom plate is provided in the vehicle width direction. Since the hook member extending inward is provided so that the upper surface of the hook member engages with the lower surface of the engaging portion and the inner end surface engages with the outer surface of the leg portion when the seat is mounted, the seat supporting span is reduced. Since the width becomes wider, the occurrence of rattling against an unbalanced load is reduced, and the stability of the seat supporting state can be greatly improved.

[Brief description of drawings]

1 to 7 are views for explaining a vehicle seat mounting structure according to an embodiment of the present invention, and FIG. 1 is a sectional rear view showing an engaging portion between a seat receiving member and a hook member. 2, FIG. 2 is a perspective view thereof, FIG. 3 is a plan view of the vehicle body frame, FIG. 4 is a sectional side view showing a seat mounting state, FIG. 5 is a bottom view of a seat bottom plate, and FIG. FIG. 7 is a plan view of a saddle-ride type four-wheeled vehicle for traveling on uneven terrain, and FIG. 7 is a side view thereof. In the figure, 1 is a saddle-ride type four-wheeled vehicle for running on uneven terrain, 2 is a body frame, 2a is a side tube, 9 is a seat, 10 is a seat receiving member, 10a is a leg portion, 10b is an engaging portion, and 12 is a seat. bottom,
12b is a vertical wall portion, and 12c is a hook member.

Claims (1)

[Claims] 1. In a vehicle in which a seat having an inverted U-shaped bottom plate is mounted on a body frame composed of a pair of left and right side tubes, a front portion of the seat is detachably mounted on the body frame. A seat receiving member is fixed to the upper surfaces of the left and right side tubes, the leg portion extending upward from the seat receiving member, and a member extending outward from the upper end of the leg portion in the vehicle width direction. And a hook member extending inward in the vehicle width direction on the left and right vertical wall portions of the front portion of the bottom plate of the seat. When the seat is mounted, the hook member has an upper surface that is the seat receiving member. Engages the lower surface of the engaging part of
A seat mounting structure for a vehicle, wherein an inner end surface of the seat contact member contacts an outer surface of a leg portion of a seat receiving member.