JPH0246435B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a support structure for a side clip that is provided at the rear of a motorcycle and is used to lift the rear part of the vehicle body by grasping it when the main stand is raised. It is.

(Prior art) Large motorcycles have heavy bodies, so side grips are provided to lift the rear part of the motorcycle when the main stand is raised, and the side grips are also used as grips for rear seat passengers. Generally, such side grips are functionally provided at the rear of the vehicle body frame.

On the other hand, the rear part of the frame of a motorcycle includes an atsupapipe that forms a seat rail that extends rearward from the rear part of the main pipe that forms the main frame member.
It consists of an obliquely disposed sub-pipe that extends diagonally rearward and upward from the lower part of the center pipe that hangs downward from the rear of the main pipe, and has the middle part of the upper pipe joined to its tip.

(Problem to be Solved by the Invention) In the conventional rear part of such a frame, the tip of the sub-pipe is joined to the middle part of the Atsupa pipe, so the part of the Atsupa pipe behind the joint becomes long and overhangs. As mentioned above, it is necessary to increase the rigidity in order to provide the side grips that bear the load and to position the seat. In order to take measures against such rigidity, it is necessary to add reinforcing members or increase the pipe diameter of the frame, which results in an increase in the weight of the frame, and if the frame structure becomes complicated, manufacturing becomes complicated. There are disadvantages such as an increase in the number of frame components.

The present invention has been made in view of the above, and its object is to increase the rigidity of the frame by joining the rear end of the sub-pipe near the rear end of the upper pipe, and also to increase the rigidity of the frame by connecting the rear end of the sub-pipe to the vicinity of the rear end of the upper pipe. By attaching and supporting the front and rear ends of the side grip, a side grip support structure is provided which can sufficiently support the load applied to the side grip and the load of the occupant on the seat. To provide a side grip support structure for a motorcycle, which has an excellent frame with a simple structure, is easy to manufacture, and is lightweight.

(Means and effects for solving the problem) In order to solve this problem, the present invention provides front wheel 5
A main frame member 201 (main pipe in the embodiment) extending rearward from the head pipe 3 that supports the main frame member 201 in a steerable manner, and a rear member forming a seat rail extending rearward from the main frame member 201 (the upper pipe in the embodiment )
206, a member (center pipe in the embodiment) 204 hanging downward from the rear of the main frame member 201, and the hanging member 20.
The rear end of the sub-member 207 is joined to the vicinity of the rear end of the rear member, and the rear end of the sub-member 207 is connected to the rear end of the rear member 206. The rear end 17b of the side grip 17 is attached and supported at the rear end, and the side grip 17 is attached to the rear end of the sub member 207 near the joint between the sub member 207 and the rear member 206.
The front end 17a of the front end 17a is mounted and supported.

According to such a configuration, a frame that is simple, easy to manufacture, and lightweight can be obtained, and the side grip 1
7, its front and rear ends are connected to the joints 20 of the atsupapipe 206 and sub-pipe 207, respectively.
Since the rear end of the side grip 17 is attached and supported at the rear end of the sub-pipe before and after 8 and the rear end of the rear member 206, the rear end of the side grip 17 is close to the joint part 208, and the overhang amount behind the joint part is short, so it is supported in a part that is strong in rigidity and strength. and this causes side grip 1
7 is not required, and since the front end of the side grip 17 is also provided close to the front of the joint, which has excellent rigidity and strength, the load from the side grip 17 can be sufficiently supported. is the joint 208
Therefore, the joint 2 between rear member 206 and sub-member 207
The strength of the grip 08 can be increased in cooperation with the side grip 17, and the load of the passenger can be sufficiently supported.

(Embodiment) A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a side view of a motorcycle. Briefly, the motorcycle 1 has a front fork 4 that supports a front wheel 5 via a head pipe 3 at the front end of a frame 2, and can be freely steered by upper and lower bridges 6 and 7. A handle 8 is provided on the top bridge 6 for support. An engine 9 is mounted on the lower front part of the frame, a fuel tank 10 is mounted on the upper part, and a seat 11 is mounted and arranged behind the fuel tank 10. A rear fork 12 pivots and extends rearward from the rear lower part of the front part of the frame, and the axle 14 of the rear wheel 13 is supported at the rear end of the rear fork 12, and a curved gutter-shaped rear fender 15 is provided at the rear of the frame above the rear wheel 13. is installed.

The frame structure of the above-mentioned motorcycle will be described in detail with reference to FIG. 2. The frame 2 consists of a main pipe 201 in the shape of a large diameter baggbone that extends rearward from the upper part of the head pipe 3 with a slight downward inclination. and,
Two left and right down pipes 202 hanging downward from the lower part of the head pipe 3, and two down pipe lowers 203 extending rearward from the lower ends of these down pipes 202.
and a center pipe 204 which forms left and right hanging members, which extends upwardly from the rear end of the main pipe 201 and is connected to the rear end of the main pipe 201 which forms the main frame member. Configuring the front part A, a down pipe 202,
The lower 203 and the center pipe 204 are formed by molding a single pipe material, for example. The main pipe 201 and down pipe 20 of the front part A of the frame
2. The engine is disposed in a space surrounded by the lower 203 and the center pipe 204, and the fuel tank 10 is disposed astride the main pipe 201. The front end of the rear fork 12 is pivotally supported by a bracket 205 provided at the bottom of the center pipe 204.

Upper pipes 206, which are rear members forming left and right seat rails, extend rearward from the upper ends of the left and right center pipes 204, and the front ends 206a of the upper pipes 206 are joined to the upper ends of the center pipes 204. Cross members (not shown) are installed at appropriate locations on the left and right center pipes. On the other hand, a sub-pipe 207 constituting a sub-member extends rearward from the lower portions of the left and right center pipes 204 so as to be inclined slightly rearward and upward, and a front end 207a of the sub-pipe 207 is joined to the lower portion of the center pipe 204. sub pipe 2
The sub pipe 207 is long and its rear end 207b is joined 208 to the rear of the upper pipe 206 as far as possible. The frame rear part B is configured as described above. This joint 2
Specifically, 08 is set at the following position.

Seat 11 is a tandem seat for two people.
The front seat 111 is located behind the fuel tank 10 and faces above the middle or front part of the upper pipe 206, and the rear seat 112, which is continuous with the front seat, faces the rear of the upper pipe 206, and the joint 208 is located approximately below the hip point of the front seat 111.
is coming. And the joint 208 is the rear fork 12
This is approximately above the axle 14 of the vehicle. Furthermore, it is located in the vicinity of the highest intermediate portion 15a of the curved portion of the rear fender 15 facing above the rear wheel 13, and behind the intermediate portion in the front-rear direction.

A front bracket 19 hangs down near the front of the joint 208, and the bracket 19 is attached to the sub pipe 2.
07 is provided with a support portion 19a hanging down from the front of the rear end. The bracket 19 has a vertically long main body 19b, whose middle part 19c is joined to the front part 207c of the rear end part 207b of the sub-pipe 207, and in the embodiment, 19d is connected to the top pipe 20.
It is joined to the part 206c in front of the joint part 6. In the example, the atsupapipe 20 of the bracket 19
6. A secondary bracket 19e is provided on the upwardly projecting portion to support a seat or the like.

The front and rear ends 1 of the side grips 23, which are formed of pipe material, round bars, etc., are formed between the lower parts of the brackets 19 provided before and after the joint portion 208, and are bent into an L shape.
7a and 17b are tied together and mounted and supported.

Next, to explain the operation of this embodiment in detail, since the rear end of the sub-pipe 207 is joined to the above-mentioned position as far as possible in the rear of the Atsupa pipe 206, the side truss structure includes almost the rear end of the Atsupa pipe 206, and therefore the frame The rigidity of the rear part is increased up to the vicinity of the rear end, and the rear part of the joint is shortened, resulting in a small amount of overhang, and since it is a truss structure, high rigidity can be obtained. Therefore, even if a tandem seat is placed on the top pipe, it can be supported with sufficient rigidity.A side grip is provided at the rear end of the rear part of the frame, and when the main stand is raised, the rear part of the frame can be lifted by grasping the side grip. It is possible to obtain a frame structure that can sufficiently withstand the above-mentioned conditions, and the above can be achieved without the need for reinforcing members while increasing the rigidity as described above, and the number of frame components can be reduced, simplified, and manufactured easily. Furthermore, as a result of the increased rigidity, the diameter of the upper pipe and sub-pipe can be reduced, and in addition to the above, advantages such as weight reduction can be obtained.

Moreover, as a result of the above, the triangular space defined by the center pipe 204, the upper pipe 206, and the sub pipe 207 becomes larger, and the equipment stored in this space, such as the air cleaner 20 and the oil tank 2, becomes larger.
1. In this embodiment, the reserve tank 22, battery 23, etc. attached to the water-cooled engine are arranged centrally, and the capacity of each can be set large, improving functionality. Appearance can be improved by deployment.

In the embodiment, a motorcycle is shown, but the present invention can also be used in a three-wheeled vehicle that adopts a similar body structure.

(Effects of the Invention) As is clear from the above, according to the present invention, in addition to obtaining a simple, easy-to-manufacture, and lightweight frame as described above, when providing a side grip, both front and rear ends are connected to the rear member and the sub-member, respectively. Since it is attached and supported at the rear end of the sub-member and the rear end of the rear member at the front and rear of the side grip, the rear end of the side grip is close to the joint, and the amount of overhang behind the joint is short, so it is supported by a part that is strong in rigidity and strength. This eliminates the need for a reinforcing member to attach the side grip, and since the front end of the side grip is also located close to the front of the joint, which has excellent rigidity and strength, it is possible to sufficiently support the load from the side grip. , can also act as a reinforcing member for the joint, and can therefore increase the strength of the joint between the rear member and the sub-member in conjunction with the side grip, eliminating the need for such a strength member and sufficiently supporting the load of the occupant. Therefore, it is possible to simplify the frame structure and reduce the number of parts more effectively.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the motorcycle, and FIG. 2 is a side view of the frame. In the drawing, 2 is a frame, 3 is a head tube, 5 is a front wheel, 201 is a main pipe which is a main frame member, 204 is a center tube which is a hanging member, 206 is a rear member is an uppipe, 207 is a sub member is a sub pipe,
208 is a joint, 15 is a rear fender, 17 is a side grip, and 18 and 19 are brackets.

Claims (1)

[Claims] 1. A main frame member extending rearward from a head pipe that supports the front wheel in a steerable manner, a rear member forming a seat rail extending rearward from the main frame member, and a rear member hanging downward from the rear of the main frame member. It consists of a member, and a diagonally disposed sub-member that connects the lower part of the hanging member and the rear member, and the rear end of the sub-member is joined to the vicinity of the rear end of the rear member, and the rear end of the sub-member is joined to the rear end of the rear member. A side grip support for a motorcycle, characterized in that a rear end of the side grip is attached and supported at the end, and a front end of the side grip is attached and supported to the rear end of the sub-member near the joint between the sub-member and the rear member. structure.