JPH0615787Y2 - Motorcycle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a motorcycle in which a container such as a tank or a container is arranged under a seat, and more particularly to a structure of a body frame of the motorcycle.

2. Description of the Related Art For example, Japanese Utility Model Publication No. 57-27181 discloses a motorcycle in which a fuel tank and a battery container are arranged under a seat. As shown in FIG. 1, this motorcycle is provided with a so-called step-through type frame, and a body frame 01 is raised in front of a rear wheel 02 from a floor portion and then a rear wheel.
It extends backward from above 02 almost horizontally. A fuel tank 03 and a battery container 04 are mounted and fixed in front of a horizontal portion of the vehicle body frame 01, and a seat 05 is provided above the fuel tank 03 and supported on the upper surface of the tank 03. A rear cushion 06 is inserted between the rear wheel 02 and the horizontal portion of the body frame 01.

Problems to be Solved by the Invention However, in the conventional motorcycle as described above, the load applied to the seat 05 is transmitted to the frame 01 via the tank 03, so that the tank 03 is sufficient to withstand this load. It must be rigid, which leads to an increase in weight.

Further, since the ground height of the seat 05 is limited to a substantially constant height, the frame 01 disposed thereunder with the tank 03 and the battery container 04 interposed therebetween comes close to the rear wheel 02, and the frame There is a problem in inserting the rear cushion 06 having a sufficient length between 01 and the rear wheel 02, and in some cases, the rear wheel 02 is moved backward to increase the inclination of the rear cushion 06 to make the length longer. I had to make the wheelbase longer.

Means and Actions for Solving Problems The present invention has been made in view of such circumstances,
According to the present invention, in a motorcycle in which a container is disposed under a seat and the seat is supported by the vehicle body through the container, a rear body frame extends rearward substantially horizontally from a front body frame and a lower portion of the container. And a rear stay member that extends obliquely upward and rearward from the lower portion of the front vehicle body frame, is connected to the rear portion of the horizontal frame member, and extends further above the horizontal frame member. The seat is supported by the upper end of the rear stay member and the upper surface of the container.

According to the present invention, at least a part of the load applied to the seat is directly received by the vehicle body frame via the upper end of the rear stay member, so that it is not necessary to increase the rigidity of the container, which leads to a reduction in weight.

Embodiment FIG. 2 is a side view of a main part of a motorcycle according to an embodiment of the present invention, and FIG. 3 is a perspective view of a vehicle body frame thereof. The body frame of the motorcycle 1 is roughly divided into a front body frame 2 and a rear body frame 3 integrally connected to the rear portion thereof. And the front body frame 2
A front wheel 6 is mounted via a front fork 5 which is pivotally supported on a head pipe 4 at the front end of the vehicle, and a rear fork 7 is pivotally supported on the lower rear portion of the front body frame 2 so as to be vertically swingable. The wheel 8 is mounted.

The front body frame 2 includes a main pipe 9 that extends obliquely downward and rearward from the head pipe 4, and the main pipe 9.
An engine 11 is attached to the rear end of the front body frame 2 and a lower frame member 10 is branched to the left and right and extends downward. An engine 11 is attached to the front lower part of the front body frame 2 to an engine hanger 12 fixed to the front body frame 2. It is mounted by being suspended via a pin 13. Further, the engine 11 has its rear portion locked to the lower frame member 10 via brackets 14 and 14 and pins 15 and 15 as appropriate.

A pair of left and right horizontal frame members 16 extend rearward from both upper sides of the lower frame member 10. The horizontal frame member 16 constitutes a rear body frame 3 together with a rear stay member 17 described later. Each horizontal frame member 16 rises upward from the lower frame member 10 and then horizontally extends rearward, and the joint with the lower frame member 10 is formed by the lower frame member 10 and both horizontal frame members 16 and 16. Are reinforced by a reinforcing member 18 for integrally solidifying. The base ends of the left and right rear stay members 17 are fixed to both lower sides of the lower frame member 10 and near the pivotal support of the rear fork 7. The rear stay member 17 extends rearward obliquely upward from the lower frame member 10 and joins with the rear end of the horizontal frame member 16 in the middle thereof, where the both are rigidly connected by welding or the like. The rear stay member 17 extends further upward beyond the connection point with the horizontal frame member 16.

A container, that is, a tank 19 for fuel is placed on the left and right horizontal frame members 16. In this tank 19, a mounting piece 20 projectingly provided on a front portion of a bottom wall of the tank 19 is fixed to the reinforcing member 13 by a bolt 21, and a flange portion 22 projectingly provided on an upper portion of the side wall.
A support plate for connecting the rear portions of the left and right rear stay members 17 and 17 to each other at an intermediate position of their upward extension portions.
It is fixed to 23 by a bolt 24. Rear stay member
The tops of 17, 17 are almost level with the top of tank 19,
Moreover, the support plate 25 connects the left and right rear stay members 17, 17 to each other at their end portions.

Since the tank 19 is located above the left and right horizontal frame members 16, its width is not limited by the distance between the left and right horizontal frame members, and therefore the width can be increased to increase the capacity. The horizontal frame member 16 is a seat 26.
Since it can be disposed below the seat regardless of the position, the large-capacity tank can be placed below the seat.

A seat 26 is provided above the tank 19, and a front end of the seat 26 is pivotally attached to a vehicle body cover 27 via a hinge member 28. On the bottom plate of the seat 26 are leg pieces 29a,
29b and 29c are projected, the leg piece 29a is on the upper surface of the support plate 25, the leg piece 29b is on the upper surface of the support plate 23 via the flange portion 22 of the tank 19, and the leg piece 29c is the tank 19. Abutting on the upper surface of each. A rear fender 30 covers the rear wheel 8 from above, and is attached to the rear stay member 17 by utilizing the lower surface of the support plate 25 and the side surface of the support plate 23.

A bracket 31 is attached so as to straddle a rear end portion of the horizontal frame member 16 and a portion of the rear stay member 17 that extends upward beyond the rear end portion, and a bracket 31 of the rear cushion 32 is provided from the bracket 31. A mounting shaft 33 for pivotally supporting the upper end projects laterally. The lower end of the rear cushion 32 is connected to the rear part of the rear fork 7 supporting the rear wheel 8, and the reaction force received by the rear wheel 8 from the ground is buffered by the rear cushion 32 and transmitted to the vehicle body frame via the bracket 31, Received by the body frame.

An air cleaner 34 is arranged in a triangular portion surrounded by the lower frame member 10, the horizontal frame member 16 and the rear stay member 17, and the air purified by the air cleaner 34 passes through the intake pipe 35 and the carburetor 36 and is supplied to the engine 11. Inhaled.

In the present embodiment configured as described above, the seat 26
Most of the load due to the weight of the occupant seated on the vehicle is received by the rear stay member 17 through the leg pieces 29a, the support plate 25, the leg pieces 29b, and the support plate 23.
The load on is small. Therefore, it is not necessary to increase the rigidity of the tank 19, so that the wall thickness can be made relatively thin to reduce the weight and the cost. further,
The rear stay member 17 is extended further upward than the rear end of the horizontal frame member 16, and the upper end of the rear cushion 32 is attached to this extended portion via the bracket 31, so that the attachment position of the rear cushion 32 to the vehicle body frame is set to a high position. It is possible to set the rear cushion 32 having a length long enough to obtain a desired cushioning effect between the vehicle body frame and the rear wheel without difficulty.

4 and 5 show another embodiment of the present invention. In these drawings, the same parts as those in the embodiment of FIGS. 2 and 3 are designated by the same reference numerals.

In the embodiment shown in FIGS. 4 and 5, a helmet container 37 is provided above the horizontal frame member 16 and below the seat 26 in place of the tank 19 in the embodiment,
It is designed to receive the helmet 38. The tank 39 is supported by the main pipe 9 and arranged in front of the seat 26. Similar to the above-described embodiment, the seat 26 has its front end pivotally attached to the vehicle body cover 27 via the hinge member 28, and its rear part to the leg pieces.
The helmet container 37 is supported by the rear stay member 17 via 29a and the support plate 25, and via another leg piece 40.
It is also supported by the upper end of. The upper end of the rear cushion 32 is attached to the upper extension of the rear stay member 17 by a bracket 41.
Is installed through. The operation and effect are exactly the same as in the above-mentioned embodiment.

In this embodiment, the air cleaner 34 is integrally connected to the bottom of the helmet container 37, and the inside of the helmet container 37 and the inside of the air cleaner 34 are partitioned by the lid 42. Then, the lid is installed inside the air cleaner 34.
The cleaner element 43 is held by 42, and the cleaner element 43 can be extremely easily inspected and replaced by removing the lid 42 from the inside of the helmet container 37 and taking out the cleaner element 43.

Further, a battery or the like may be stored instead of the air cleaner 34 of this embodiment.

As described above, in the present invention, in the motorcycle in which the container is arranged under the seat and the seat is supported by the vehicle body through the container, the rear body frame is substantially horizontal from the front body frame. A horizontal frame member that extends rearward to support the lower portion of the container, and a rear stay that extends obliquely upward from the lower portion of the front vehicle body frame rearward and is connected to the rear portion of the horizontal frame member and extends further above the horizontal frame member. Since the seat is supported by the upper end of the rear stay member and the upper surface of the container, at least a part of the load applied to the seat is directly received by the vehicle body frame via the upper end of the rear stay member, and thus the container It is not necessary to increase the rigidity in particular, and the weight can be reduced and the cost can be reduced. Further, since the main part of the container is located above the horizontal frame member and does not interfere with the horizontal frame member, and the horizontal frame member itself can be disposed below the seat sufficiently apart, the capacity of the container can be increased. You can further,
By setting the connection point of the rear cushion on the vehicle body frame side to a high position, the rear cushion having a sufficient length can be reasonably arranged at an appropriate angle between the vehicle body frame and the rear wheels.

[Brief description of drawings]

FIG. 1 is a side view of a conventional motorcycle, FIG. 2 is a side view of a main portion of a motorcycle according to an embodiment of the present invention, and FIG. 3 is an exploded view of a body frame of the motorcycle and parts associated therewith. FIG. 4 is a perspective view, FIG. 4 is a side view of a main part of a motorcycle showing another embodiment of the present invention, and FIG. 5 is a sectional view taken along line VV of FIG. 1 ... Motorcycle, 2 ... Front body frame, 3 ... Rear body frame, 4 ... Head pipe, 5 ... Front fork,
6 ... front wheel, 7 ... rear fork, 8 ... rear wheel, 9 ... main pipe, 10 ... lower frame member, 11 ... engine, 12 ... engine hanger, 13 ... pin, 14 ... bracket, 15 ... pin,
16 ... Horizontal frame member, 17 ... Rear stay member, 18 ... Reinforcing member, 19 ... Tank, 20 ... Mounting piece, 21 ... Bolt, 22 ... Flange part, 23 ... Support plate, 24 ... Bolt, 25 ... Support plate, 26 ...
Seat, 27 ... Body cover, 28 ... Hinge member, 29 ... Leg piece,
30 ... Rear fender, 31 ... Bracket, 32 ... Rear cushion, 33 ... Mounting shaft, 34 ... Air cleaner, 35 ... Intake pipe, 36 ...
Vaporizer, 37 ... Helmet container, 38 ... Helmet, 39 ... Tank, 40 ... Leg piece, 41 ... Bracket, 42 ... Lid, 43 ... Cleaner element.

Claims (1)

[Scope of utility model registration request] 1. A motorcycle in which a container is disposed under a seat and the seat is supported by a vehicle body through the container,
The rear body frame is connected to the horizontal frame member that extends rearward from the front body frame substantially horizontally and supports the lower portion of the container, and the rear body frame that extends rearward and obliquely upward from the lower portion of the front body frame to the rear portion of the horizontal frame member. A motorcycle comprising: a rear stay member that extends above the horizontal frame member and supports the seat by an upper end of the rear stay member and an upper surface of the container.