JPS6175076A - Seat mounting structure in motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a seat mounting structure for a motorcycle, and more particularly to a seat mounting structure for a motorcycle in which a seat is rotatably attached to a vehicle body frame.

(Prior Art) In a motorcycle, a seat is removably attached to a seat rail that constitutes a vehicle body frame in order to repair an internal combustion engine or various devices installed behind the internal combustion engine. There is.

This type of seat mounting structure includes an elastic body placed on the seat bottom to provide elasticity at the place where it contacts the seat rail, and a front mounting part and a rear mounting part placed at a predetermined distance at the front and rear of the seat. Some vehicles have a front mounting section that is inserted into a bracket provided on the vehicle body frame, and a rear mounting section that is removably fixed by being latched to the vehicle body frame.

Incidentally, as disclosed in Japanese Unexamined Patent Publication No. 57-957 previously filed by the same applicant, the front mounting portion of the seat is directly inserted and locked into a bracket or the like that supports a fuel tank.

(Problem to be solved by the invention) In this way, the front mounting part of the seat is inserted and locked from the rear side into the bracket fixed to the seat rail, but this insertion prevents the seat from shaking. By the way, since the bracket is fixed to the seat rail by welding or the like, it is difficult to insert the front mounting part of the seat.

This invention was made in view of these circumstances.

It is an object of the present invention to provide a seat mounting structure for a motorcycle in which the front side mounting portion of the seat can be easily inserted and the wobbling of the seat can be more effectively reduced.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention includes mounting a seat on the vehicle body frame, and attaching the front attachment portion and the rear attachment portion of the seat to the vehicle body frame. In the removably attached motorcycle, a bracket supporting the front side attachment part is supported on the vehicle body frame via an elastic body, and the front side attachment part is inserted into the bracket and elastically supported. .

(Function) In this invention, the bracket that supports the front mounting portion of the seat is supported by the vehicle body frame via an elastic member, and the front mounting portion of the seat is pushed along the seat rail by the elastically supported bracket. Move and insert it. During this insertion, the bracket is elastically supported by the vehicle body frame, so it contracts when the front attachment part of the seat is inserted, making it easy to install, and it is firmly supported by elastic force after insertion.
Seat vibrations are reduced even more effectively.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

Figure 1 is a side view of a motorcycle to which this invention is applied;
The figure is a partially sectional side view of the seat showing the attached state of the seat, and FIG. 3 is a cross-sectional view taken along the line 1--2 of FIG.

In the figure, reference numeral 1 denotes a vehicle body frame, and a front fork 4 on which a front wheel 3 is suspended is rotatably supported by a head pipe 2 constituting the vehicle body frame 1. A pair of left and right down tubes 5 and a tank rail 6 are connected to the head pipe 2, and a seat rail 7 is further connected to the tank rail 6. A back bracket 8 is connected between the rear end of the down tube 5 and the seat rail 7. Further, an internal combustion engine E is mounted on the pair of left and right down tubes 5 so as to be suspended from both sides, and above the internal combustion engine E, a fuel tank 9 is connected from the pair of left and right tank rails 6 to the front side of the seat rail 7. It is installed.

Behind the fuel tank 9, the seat lO is connected to the seat rail 7.
It is removably placed on the That is.

As shown in FIG. 2, the seat 1O is made by placing a bushing material 12 formed of, for example, urethane foam on the top of a seat bottom 11 made of synthetic resin, and then applying glue, cylindrical material, and a thickening material 12.
It is made up of 13 sheets of leather. A plurality of rubber mounts 14 are arranged on the seat bottom ll, and the rubber mounts 14 are attached to a pair of seat rails 7.
It is located at a position facing the cross member 15' installed between the seat rails 7, and absorbs vibrations of the vehicle body.

A front mounting portion 16 is provided at the center of the front side of the seat bottom 11 and protrudes forward, that is, toward the fuel tank 9, and is inserted into a bracket 17 provided on the seat rail 7.

As shown in FIG. 3, the bracket) 17 has a support portion 17a,
Consists of a sheet holding part 17b and a guide part 17c,
The support portion 17a is elastically supported by the seat rail 7.

That is, a stay 18 is welded to the inside of the seat rail 7, and a pair of elastic bodies 20 and 21 made of, for example, rubber are inserted into the stay 18 via a collar 19. The supporting portion 17a of the bracket 17 is supported by the pair of elastic bodies 2.
0.21, and is fitted into the boss portion 21a of the elastic body 21. Then, a tightening port 23 is inserted into the collar 19 from above via a retainer 22, and a nut 24 is screwed from below to be tightened and fixed.

On the other hand, a pair of rear mounting portions 25 are provided on the rear side of the seat rail 7.
are arranged at positions close to the inside of the seat rail 7, and the rear mounting portion 25 has its supporting portion 25a interposed between a pair of elastic bodies 26 and 27, and is connected to a tightening bolt via a retainer 28. 29 is screwed onto the G-to-pot 11 and fixed.

A locking lever 30 provided inside the seat rail 7 is fitted and locked into the locking portion 25b of the rear mounting portion 25.

The locking lever 30 is a locking device 31 provided on the seat rail 7.
It is configured so that it can be attached and detached by rotating.

Next, the operation of this embodiment will be explained.

To install the seat 10, place it so that the rubber mount 14 of the seat bottom 11 is in contact with the seat rail 7, and push it toward the fuel tank 9. Then, the front mounting part 16 provided on the seat bottom 11 is connected to the guide part 17 of the bracket 17.
c and is guided and inserted into the holding part 17b.

At this time, the support part 17a of the bracket 17 is connected to the pair of elastic bodies 20 by inserting the front mounting part 16 into the bracket 17.
．． 21, the upper elastic body 20 is compressed, lifted slightly upward, and easily inserted. Moreover, after the front attachment part 16 is inserted, the elastic force of the upper elastic body 20 presses the support part 17a of the bladder 2 to 17 downward, so that the holding part 17b of the bracket 17 is connected to the front attachment part 16. held in close contact. Furthermore, since the support part 17a of the bracket 17 is interposed between the pair of elastic bodies 20.21 and fitted to the boss part 21a of the elastic body 21, vibrations in the vertical and horizontal directions that occur in the vehicle body is attenuated by these elastic bodies 20, 21, and transmission of vibration to the seat IO is reduced.

Furthermore, when the locking lever 30 is fitted into the locking portion 25b of the rear mounting portion 25, the locking device 31 is automatically locked and locked. Similarly, since the support part 25a of the rear mounting part 25 is held by a pair of elastic bodies 26 and 27, vibrations of the vehicle body transmitted via the seat rail 7 are absorbed and damped, and the seat io vibration is reduced.

(Effects of the Invention) As described above, the present invention includes placing a seat on a vehicle body frame, inserting the front mounting portion of the seat into the bladder 2 supported by the vehicle body frame via an elastic body, Since the seat is elastically supported, the front mounting portion of the seat can be easily inserted, and rattling of the seat can be further effectively reduced.

[Brief explanation of the drawing]

Fig. wS1 is a side view of a motorcycle to which this invention is applied, Fig. 2 is a side view of a part of the seat shown in its attached state, and Fig. 3 is a sectional view taken along the line ■-■ of Fig. 2. . 1... Vehicle body frame 6... Tank rail 7.
...Seat rail 9...Fuel tank 10...
Seat 11...Seat bottom 16...Front side mounting part 17...Bracket 20, 21, 26
．． 27...Elastic body 25...Rear side attachment part

Claims (1)

[Claims] In a motorcycle in which a seat is placed on a body frame, and a front side attachment part and a rear side attachment part of the seat are removably attached to the body frame, a bracket supporting the front side attachment part is attached to the body frame with elasticity. A seat mounting structure for a motorcycle in which the seat is supported through the body, and the front mounting portion is inserted into the bracket and elastically supported.