JP2002029468A - Motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce sensible vibration in traveling with one rider or in traveling on a flat road and to prevent the bottom part of a seat from being brought into contact with the other parts in tandem traveling or in traveling on a bad road. SOLUTION: This motorcycle is provided with a seat 7 on the body. The front part and the rear part of the seat 7 are supported on the body, and support dampers having the different hardness are provided on a central part in the longitudinal direction of the seat 7. When the support damper 76 having the lower hardness is made flex to the specified degree or more, the support damper 11 having the higher hardness is brought into contact with the body side to receive the seat load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a motorcycle having a vehicle body with a seat.

[0002]

2. Description of the Related Art A conventional motorcycle has a seat on a vehicle body. The front and rear portions of the seat are supported by the vehicle body, and a central portion in the front-rear direction is supported by the vehicle body via a support damper. is there.

[0003]

When the seat support damper is set softly so that vibration absorption can be secured when one rider is seated or when traveling on a flat road, two people can ride on the seat. In the case of traveling on a rough road or traveling on a rough road, there is a problem that the support damper is bent and the bottom of the sheet comes into contact with other components, and the sheet is damaged.

Conversely, if the hardness of the support damper is increased so that the damper does not flex and the bottom of the seat does not come into contact with other components, the support damper is not used when one rider is seated or when traveling on a flat road. Vibration absorption had to be sacrificed to some extent.

The present invention has been made in view of such circumstances, and it is possible to reduce the bodily sensation when a single rider is seated or when traveling on a flat road. It is an object of the present invention to provide a motorcycle that prevents the bottom of a seat from contacting other parts when traveling on a rough road or the like.

[0006]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to a first aspect of the present invention, there is provided a motorcycle in which a front portion and a rear portion of the seat are supported by the vehicle body and a support damper having a different hardness is provided at a central portion in the front-rear direction of the seat. A support damper having a high hardness is brought into contact with the vehicle body side to receive a seat load when the support damper having a low hardness is bent by a predetermined amount or more. ].

According to the first aspect of the present invention, when one rider is seated and traveling, a bodily sensation vibration can be reduced by receiving a load with the support damper having low hardness. The load on the seat increases when riding with two people or traveling on rough roads, but the load is applied by the support damper with high hardness, which prevents the bottom of the seat from contacting other parts. can do.

According to a second aspect of the present invention, there is provided the motorcycle according to the first aspect, wherein the load receiver against which the low-hardness support damper abuts is a fuel tank. ].

According to the second aspect of the present invention, the supporting damper having a low hardness has a simple structure that receives a load by using the fuel tank.

According to a third aspect of the present invention, there is provided the motorcycle according to the first aspect, wherein the load receiver against which the high-hardness support damper abuts is a vehicle body cover. ].

According to the third aspect of the present invention, the support damper having a high hardness has a simple structure that receives a load using the vehicle body cover.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A motorcycle according to an embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1 is a side view of the motorcycle, FIG. 2 is a plan view of the motorcycle, and FIG.
Is a front view of the motorcycle, and FIG. 4 is a rear view of the motorcycle.

The motorcycle 1 of this embodiment has a head pipe 3 for rotatably supporting a steering shaft 2, a main frame 4 extending obliquely downward and rearward from the head pipe 3, and a rear end of the main frame 4. And a seat rail 6 connected to the rear side of the main frame 4 and extending diagonally upward and rearward. A two-seater seat 7 is disposed above the seat rail 6.

The steering shaft 2 has a handle 8 at its upper end.
And a front fork 9 is fixed to the lower end, and a front wheel 10 is rotatably supported by the front fork 9. The front fork 9 has a front fender 11
Is fixed, and the front fender 11 turns right and left together with the front fork 9.

The upper portion of the steering shaft 2 and the periphery of the handle 8 are covered by a handle cover 14 except for the grip portion of the handle 8. The handle cover 14 is integrally provided with a headlight 15, a flasher light 16, meters 17 and the like.

The rear arm bracket 5 includes an engine 2
0 is mounted, and the cylinder 20a is located on the front side and is inclined substantially horizontally forward. The engine 20 is a four-stroke engine, and an exhaust pipe 28 passes through a lower part of the right side of the engine 20 from the cylinder 20a, and is provided on a right side of the rear wheel 23.
a.

In the rear arm bracket 5, the front side of the rear arm 21 is pivotally supported via a pivot shaft 95, and the rear side of the rear arm 21 is supported by the seat rail 6 via a rear cushion 22. A rear wheel 23 is pivotally supported on the rear side of the rear arm 21. A rear fender 24 is fixed to the seat rail 6.

The left and right leg shields 25 extending laterally from the periphery of the head pipe 3, and furthermore, the vehicle body cover 2 covering the periphery of the main frame 4 and the seat rail 6 below the seat 7.
6 are provided. A luggage basket 27 is provided in front of the leg shield 25.

A shift pedal 30 is provided on the left side of the engine 20.
And a brake pedal 31 is provided on the right side. A bar-shaped footrest bracket 32 extending in the vehicle width direction is attached to a lower portion of the engine 20. The footrest bracket 32 extends to the left and right of the vehicle body, and has steps 33 attached to both sides of the engine 20.

On the left and right outer sides of the rear arm bracket 5,
A rear footrest bracket 34 is attached. The rear footrest bracket 34 extends rearward, and a rear footrest 35 is attached to a rear end thereof. A main stand 36 is attached to the rear arm bracket 5, and a side stand 37 is attached to the footrest bracket 32.

The seat 7 is arranged as shown in FIGS. 5 is a cross-sectional view of the seat portion of the motorcycle, FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 5, FIG. 7 is a cross-sectional view of the seat, FIG. 8 is a bottom view of the seat, and FIG. -IX
FIG. 10 is a sectional view taken along the line XX of FIG. 7,
11 is a sectional view taken along the line XI-XI in FIG. 7, and FIG.
It is sectional drawing which follows the II-XII line.

The fuel tank 40 is supported between a pair of left and right seat rails 6 of the vehicle body via a front bracket 41 and a rear bracket 42. The bottom of the fuel tank 40 is located between the pair of left and right seat rails 6, and the tank capacity is increased accordingly. Behind the fuel tank 40, a storage box 43 is provided with a front bracket 44.
And a rear bracket 45. Both sides of the fuel tank 40 and the storage box 43
6 are covered by side covers 26a and 26b. The side covers 26a and 26b are connected to the fuel tank 4
It is received in the storage box 43 fixed to “0”.

The seat 7 includes a bottom plate 7a, a cushion member 7
b and the outer skin 7c. The front and rear portions of the bottom plate 7a are provided with mounting bolts 70 and 71, respectively. The mounting bolt 70 is fastened and fixed to a hinge 72, and the hinge 72 is rotatable about a support shaft 74 as a fulcrum on a bracket 73 fixed to the fuel tank 40. The mounting bolt 71 is fastened and fixed to a bracket 75 provided on the pair of left and right seat rails 6. When the fastening of the mounting bolts 71 is released, the seat 7 is rotated forward with the support shaft 74 as a fulcrum to inject fuel from the injection portion 40 a of the fuel tank 40 and to put small articles in and out of the storage box 43. Can be.

On the bottom plate 7a, ribs 7a1 and 7a2 are formed in the longitudinal direction of the vehicle body and in the lateral direction of the vehicle body.
a1, 7a2. A pair of low-hardness support dampers 76 and a pair of high-hardness support dampers 77 are provided at the center of the bottom plate 7a, and a pair of high-hardness support dampers 78 are provided at the rear.

The support damper 76 having a low hardness is provided so as to be in contact with the upper portion 40b of the fuel tank 40, and can receive a load using the fuel tank 40.

The support damper 77 having high hardness is provided at the upper part 2 of the side covers 26a and 26b constituting the vehicle body cover 26.
It is arranged so as to have a predetermined gap D with 6a1 and 26b1. Upper part 26a of side covers 26a, 26b
1, 26b1 are provided in contact with ribs 43a, 43b formed on both sides of the storage box 43. The side covers 26a, 26b have longitudinal ribs 26a2,
26b2 are formed, and the vertical ribs 26a2, 26b2 are formed with concave grooves 7a3, 7a4 formed along both sides of the bottom plate 7a.
To prevent rainwater or the like from entering the outside.

The support damper 78 having a high hardness is provided so as to contact the bracket 75, and can receive a load using the bracket 75.

As described above, the support dampers 76 and 77 having different hardness are provided at the center of the seat 7, the support damper 76 having low hardness is brought into contact with the fuel tank 40 receiving the load, and the support damper 77 having high hardness is loaded. Receiving side cover 2
A gap is provided between the support dampers 6a and 26b, and the support damper 76 having a low hardness is deflected by a load greater than a predetermined value, and the support damper 7 having a high hardness is provided.
7 is brought into contact with the load receiving side covers 26a and 26b to receive the load.

Therefore, when one rider is seated and traveling, the bodily vibration can be reduced by receiving a load with the support damper 76 having a low hardness.

In the case of traveling with two passengers or traveling on a rough road, the load applied to the seat increases, and the support damper 76 having a low hardness is bent, but the support damper 77 having a high hardness is used.
The bottom 7a of the seat 7 and the outer skin 7
c is in contact with other components, for example, the side covers 26a and 26b, and the bottom 7a and the outer skin 7c are prevented from being damaged.

[0032]

As described above, according to the first aspect of the present invention, when one rider is seated and travels,
By receiving the load with the support damper with low hardness, it is possible to reduce the bodily sensation vibration, and the load applied to the seat increases when riding with two people or traveling on rough roads, but the hardness is low. Since the load is received by the high support damper, it is possible to prevent the bottom of the sheet from contacting other parts.

According to the second aspect of the present invention, the support damper having a low hardness has a simple structure that receives a load using the fuel tank.

According to the third aspect of the present invention, the support damper having a high hardness has a simple structure that receives a load using the vehicle body cover.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle.

FIG. 2 is a plan view of the motorcycle.

FIG. 3 is a front view of the motorcycle.

FIG. 4 is a rear view of the motorcycle.

FIG. 5 is a sectional view of a seat portion of the motorcycle.

6 is a sectional view taken along the line VI-VI in FIG.

FIG. 7 is a sectional view of a sheet.

FIG. 8 is a bottom view of the seat.

FIG. 9 is a sectional view taken along line IX-IX in FIG. 7;

FIG. 10 is a sectional view taken along line XX of FIG. 7;

FIG. 11 is a sectional view taken along the line XI-XI in FIG. 7;

FIG. 12 is a sectional view taken along the line XII-XII of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motorcycle 2 Steering shaft 3 Head pipe 4 Main frame 5 Rear arm bracket 6 Seat rail 7 Seat 7a Bottom plate 26 Body cover 40 Fuel tank 76 Support damper with low hardness 77,78 Support damper with high hardness

Claims (3)

[Claims] 1. A motorcycle having a seat provided on a vehicle body, wherein a front portion and a rear portion of the seat are supported by the vehicle body, and a support damper having a different hardness is provided at a center portion of the seat in the front-rear direction, and a low-support hardness damper A motorcycle characterized in that when the vehicle is bent by a predetermined amount or more, a support damper having high hardness is brought into contact with the vehicle body to receive a seat load. 2. The motorcycle according to claim 1, wherein the load receiver against which the low-hardness support damper abuts is a fuel tank. 3. The motorcycle according to claim 1, wherein the load receiver against which the support damper having high hardness abuts is a vehicle body cover.