JPH06191457A - Motorcycle - Google Patents

Abstract

PURPOSE:To enhance durability as well as to lower vibration noise by preventing the vibration of a rear fender by means of both a rear grip which is small in size, light in weight and simple in structure, and also by a vibration preventive means provided for the rear grip. CONSTITUTION:A grip means 34 raising a motor bicycle 11 up is provided for the rear section of a body frame 12, and a means preventing the vibration of a rear fender 35 is also provided for the aforesaid grip member 34 in the motor bicycle 11 where the body frame 12 is so constituted as to be combined with pipe members such as steel pipes and the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle, and more particularly to a motorcycle having a small and lightweight rear grip.

[0002]

2. Description of the Related Art In a motorcycle, a vehicle body is sometimes raised to stand a main stand or change its direction in a narrow place. Normally, a rear grip is provided at the rear of the vehicle body so that the rear grip can be held and held. I am raising the car body.

As a structure of the rear grip, there is a structure in which a metallic rear grip is fixed to the rear portion of the vehicle body frame with bolts or the like, or is fixed by welding.

Further, the off-road motorcycle has a large vibration of the rear fender, and for the purpose of preventing this vibration, a reinforcement pipe 2 is provided at the rear portion of the vehicle body frame 1 as shown in FIGS. 5 (a) and 5 (b). The rear fender 4 is fixed and fixed to the reinforcement pipe 2 together with the muffler 3. However, there is also one that uses the reinforcement pipe 2 as a rear grip.

Further, the rear grip may be fixed to the carrier provided at the rear of the vehicle body by welding, or the carrier may be used as a rear grip.

Further, there is also a rear fender provided at the rear of the vehicle body or a part of a frame cover which is reinforced and used as a rear grip.

[0007]

However, when the reinforcement pipe is used as the rear grip, the conventional reinforcement pipe is large and heavy. Also,
Bending of complicated shapes and mounting of brackets etc. are required, and the structure is complicated and the number of assembling steps and manufacturing costs increase.

Further, the large vibration of the rear fender deteriorates the durability of the rear fender, and the vibrating noise is generated by the contact with the reinforcement pipe.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a motorcycle which is compact and lightweight and has a rear grip with a simple structure.

Another object of the present invention is to provide a motorcycle equipped with means for preventing vibration of the rear fender, improving durability and reducing vibration noise.

[0011]

In order to solve the above-mentioned problems, a motorcycle according to the present invention has a structure in which a pipe material such as a steel pipe is combined to form a vehicle body frame. In the two-wheeled vehicle, a grip means for lifting the motorcycle and a means for preventing vibration of the rear fender are provided at the rear portion of the vehicle body frame.

[0012]

According to the present invention having the above-mentioned structure, in a motorcycle in which pipe materials such as steel pipes are combined to form a vehicle body frame, grip means for lifting the motorcycle at the rear portion of the vehicle body frame and the grip means. Since the means for preventing the vibration of the rear fender is provided, it is possible to lift the vehicle body with a small and lightweight grip means having a simple structure, while the vibration prevention means provided in this grip means prevents the rear fender from vibrating. It is possible to improve durability and reduce vibration noise.

[0013]

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

FIG. 1 is a right side view of a motorcycle to which an embodiment of the present invention is applied.

In FIG. 1, a vehicle body frame 12 of the motorcycle 11 is, for example, of a semi-double cradle frame type, and a main tube 1 as a tank rail is used.
3, a head pipe 14, a down tube 15, an under tube 16, a sub tube 17, a rear pipe 18 and a seat rail 19.

A fuel tank 20 is installed above the main tube 13, and an engine 21 is mounted below the center of the body frame 12.

A head pipe 14 is connected to the upper end of the main tube 13, and a down tube 15 extends rearward and downward from the lower end of the head pipe 14, and an under tube 16 is connected to the lower end of the down tube 15. To be done.

The undertube 16 is divided into two branches and extends downward, is bent in the middle and extends rearward, and then is connected to the lower end of the subtube 17.

A steering mechanism 22 is provided on the head pipe 14, and the steering wheel 22 is connected to the front wheel 2.
A front fork 24 that rotatably supports 3 is provided.

The front fork 24 is fixed to the upper bracket 25 and the lower bracket 26 of the steering mechanism 22 so as to sandwich the front wheel 23, and the steering mechanism 22 has a handlebar 27, a front fender 28, and an instrument lighting unit 29. It is attached and pivotally attached to the left and right together with the front fork 24.

A swing arm 32 for supporting a rear wheel 31 is pivotally mounted on a pivot shaft 30 which is provided under the center of the sub tube 17 of the vehicle body frame 12 so as to be rotatable around the pivot shaft 30.

A seat rail 19 is connected to the rear end of the main tube 13. An operation seat 33 is installed above the seat rail 19.

Further, at the rear end of the seat rail 19, there is provided a rear grip 34 as a grip means for lifting the motorcycle,
The rear fender 35 is provided, and the rear grip 34 is provided with a cushion material 36 that is a means for preventing the rear fender 35 from vibrating.

An exhaust pipe 37 extends from the front side of the engine 21 to the rear of the motorcycle 11, and a silencer 38 is provided at the rear end of the exhaust pipe 37.
8 is fixed to the rear end of the seat rail 19.

Reference numeral 39 is a side cover.

2 (a) and 2 (b) are an enlarged plan view and a right side view of the rear portion of the seat rail 19, respectively.

FIG. 3 is a sectional view taken along line XX of FIG. 2B, and FIG. 4 is a sectional view taken along line YY of FIG. 2B.

As shown in FIGS. 2 (a) and 2 (b), brackets 40a and 40b are provided at the rear end of the seat rail 19, and a rear grip 34 as a grip means is attached to the bracket 40a. This rear grip 34
A cushion material 36, which is a means for preventing vibration of the rear fender 35 formed of rubber or the like, is attached to the rear portion of the rear fender 3 as shown in FIG.
It contacts the inside of 5.

Further, as shown in FIG.
a is a mounting portion 41a of the rear grip 34, a mounting portion 42a of the rear fender 35, and a mounting portion 4 of the silencer 38.
3 are fastened together by bolts and nuts 44a. The other mounting portion 42b of the rear fender 35 is mounted on the bracket 40b with bolts and nuts 44b.

Further, the other mounting portion 41b of the rear grip 34 is attached to the bracket 40a by a bolt / nut 44c.
Fixed by. Reference numeral 45 is a washer.

Next, the operation of this embodiment will be described.

A main tube 13, a head pipe 14, a down tube 15, and an under tube 1 as a tank rail which constitutes a vehicle body frame 12 of a motorcycle 11.
6, the sub-tube 17, the rear pipe 18, and the seat rail 19 are welded and firmly assembled.

As shown in FIGS. 2 (a) and 2 (b), brackets 40a, 4 are provided at both rear ends of the seat rail 19.
0b are attached respectively.

As shown in FIG. 4, the bracket 40a has a mounting portion 41a for the rear grip 34 and a rear fender 3.
5 mounting portion 42a, and silencer 38 mounting portion 43
Are attached by bolts and nuts 44a.

At this time, as shown in FIG. 3, the cushion material 36 attached to the rear grip 34 is replaced by the rear fender 35.
Since the cushion material 36 absorbs the vibration even if the rear fender 35 vibrates while the motorcycle 11 is running, the vibration sound of the rear fender 35 is reduced, and the rear fender 35 is also reduced in size. The durability of 35 is also improved.

Further, it is desirable that the rear grip 34 is fixed at two or more places in order to obtain strength.
In the present embodiment, another mounting portion 41b is provided on the rear grip 34, and this mounting portion 41b is mounted on the bracket 40a with the bolts and nuts 44c. Therefore, when the motorcycle 11 is lifted, the rear grip 34 is grasped and held. It becomes possible to raise it enough.

In this embodiment, the rear grip 34, which is smaller and lighter than the conventional reinforcement pipe 2 as shown in FIG. 5 and has a simple structure, is provided, so that the workability of assembling the motorcycle 11 is improved. The manufacturing cost can be reduced and the vehicle weight can be reduced.

[0038]

As described above, in a motorcycle in which pipe materials such as steel pipes are combined to form a vehicle body frame, grip means for lifting the motorcycle at the rear portion of the vehicle body frame, and a rear fender for the grip means. Since it is equipped with a means to prevent vibration, it is compact and lightweight, and the grip means with a simple structure can lift the vehicle body, while the vibration prevention means provided in this grip means prevents the rear fender from vibrating and is durable. It is possible to improve the soundness and reduce the vibration noise.

[Brief description of drawings]

FIG. 1 is a right side view of a motorcycle showing an embodiment of a rear grip of the motorcycle according to the present invention.

2A and 2B are an enlarged plan view and a right side view of a rear portion of a seat rail.

FIG. 3 is a cross-sectional view taken along line XX of FIG.

FIG. 4 is a sectional view taken along the line YY of FIG.

5 (a) and 5 (b) are an enlarged plan view and a right side view of a rear portion of a conventional seat rail.

[Explanation of symbols]

 11 Motorcycle 12 Body Frame 13 Main Tube 19 Seat Rail 34 Rear Grip 35 Rear Fender 36 Cushion Material 38 Silencer 40a, b Bracket 41a, b Rear Grip Mounting Part 42a, b Rear Fender Mounting Part 43 Silencer Mounting Part

Claims (1)

[Claims] 1. A motorcycle in which pipe materials such as steel pipes are combined to form a vehicle body frame, and grip means for lifting the motorcycle at a rear portion of the vehicle body frame, and means for preventing vibration of a rear fender by the grip means. A motorcycle characterized by being provided with.