JPH03189282A - Motorcycle - Google Patents

Abstract

PURPOSE:To facilitate arrangement of piping for a brake hose in the device in which an exhaust pipe is arranged along the underside of a seat and a damper supporting a pair of right and left rear arms are arranged in the center part of a vehicle body by thinking out arrangement position of the damper and its sub-tank. CONSTITUTION:An engine loaded on a motorcycle is connected with an air cleaner 10 on the intake side through a carburetor 8 and a connecting pipe for intake 9, and connected with an exhaust pipe 11 on the exhaust side longitudinally extending on the underside of a seat 5 along the side part of a vehicle body. A pair of right and left rear arms 12 rotatably supporting a rear wheel on their rear ends are pivotally supported on the rear end of a seat pillar 2, and a damper 14 with a sub-tank 14a is provided between the cross member 13 between the rear arms 12, 12 and a seat rail 3. In this case, the damper 14 is arranged in rear of the air cleaner 10, and the sub-tank 14a is arranged on the separated position from the exhaust pipe 11 at viewing on a plane. Hereby, arranging space of a brake hose has enough room in the upper and lower direction and arrangement of piping is facilitated.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a motorcycle, and more particularly to a motorcycle in which an exhaust pipe is disposed along one side of the vehicle body below the seat, and a shock absorber is disposed in the center of the vehicle body. The present invention relates to a motorcycle in which brake hose piping is facilitated.

[Prior art]

In general, in motorcycles, exhaust pipes and shock absorbers are placed on the side of the vehicle body, and are usually a factor in increasing the width of the vehicle. However, if the width of the vehicle is too large, maneuverability will be affected, so attempts have been made to arrange the exhaust pipes and shock absorbers so as not to increase the width of the vehicle. For example, there has been a proposal to place the exhaust pipe on one side of the vehicle below the seat as close to the vehicle as possible, and to provide a single shock absorber that penetrates through the center of the vehicle.

However, in conventional motorcycles with such a configuration, the air cleaner is placed behind the shock absorber that passes through the center of the vehicle body, and the intake connecting pipe that connects this air cleaner and the carburetor in front is connected to the shock absorber. Since the sub-tank of this shock absorber has to be located on the side of the exhaust pipe opposite to the intake connecting pipe, the sub-tank of the shock absorber must be placed on the side of the exhaust pipe opposite to the intake connecting pipe. On the other hand, the left and right width below the seat is kept as low as possible in consideration of seating comfort, and since it is only the total width of the intake connecting pipe, shock absorber, and exhaust pipe, the sub-tank is placed between the exhaust pipe and the rear arm. As a result, the space for arranging the brake hose provided at the upper part of the front end of the rear arm is restricted, making piping difficult.

(Problems to be Solved by the Invention) The purpose of the present invention is to solve the problems described above when exhaust pipes and shock absorbers are arranged to narrow the vehicle width, and to facilitate the routing of brake hose piping. Our goal is to provide motorcycles that meet the needs of customers.

(Means for Solving the Problems) The present invention achieves the above object by arranging an exhaust pipe so as to extend back and forth just below the seat on one side of the vehicle body, and pivoting a pair of left and right rear arms to the rear part of the vehicle body frame. A motorcycle supported by a single shock absorber at the middle part in the width direction, and in which a brake hose for the rear wheel is piped to at least the upper part of the front end of the rear arm on the side where the exhaust pipe is arranged,
The present invention is characterized in that the shock absorber is disposed behind the air cleaner, and the sub-tank connected to the left and right sides of the shock absorber is disposed at a position spaced apart from the exhaust pipe in plan view.

By placing the buffer at the rear of the air cleaner,
The intake connecting pipe between the air cleaner and the carburetor no longer interferes with the shock absorber, and as a result, it becomes possible to provide more space for installing the shock absorber and the sub-tank in the width direction.

Therefore, the sub-tank can be prevented from overlapping the exhaust pipe in a plan view, and the piping can be easily routed.

〔Example] The following will explain the embodiments shown in the figures.

In the figure, the work is the main frame, 2 is the seat pillar,
3 is a seat rail, which is a member constituting the vehicle body frame. Also, 4 is the engine, 5 is the seat, 6 is the front wheel,
7 is the rear wheel.

The engine 4 in this embodiment is a single cylinder.

It consists of two cycles. A carburetor 8 is attached to the intake side, and an air cleaner 10 is connected via an intake connecting pipe 9.
is connected to. In addition, an exhaust pipe 1 provided on the exhaust side
1 extends forward, then turns back and extends back and forth below the seat 5 along the side of the vehicle body.

A pair of left and right rear arms 12, 12 are pivotally supported on the seat pillar 2, and a rear wheel 7 is supported at the rear end thereof. This rear arm 12.12 has a front end reinforced by a cross member 13, and the cross member 13 and the seat rail 3.
A buffer 14 with a sub-tank 14a is connected between the two. The sub-tank 14a has a known configuration, assists the function of the shock absorber 14, and contains compressed gas therein via a free piston. Furthermore, of the pair of left and right rear arms 12° 12, a brake hose 1 is provided from the front end to the rear end on the side where the exhaust pipe 11 is installed.
5 is arranged on the upper side. This brake hose 15
The front end is connected to a master cylinder 17, and the rear end is connected to a disc brake 16 for braking the rear wheels. Of course, if the disc brakes I6 are installed on both the left and right sides, the brake hoses should be connected to both rear arms 1 and 1.
2.

Since the shock absorber 14 is located at the rear of the air cleaner 10, the space in the left and right direction is not restricted by the intake connecting pipe 9 that connects it to the carburetor 8, as in conventional motorcycles. do not have. Therefore, the shock absorber 14 is offset slightly laterally (on the opposite side from the exhaust pipe 11) from the vehicle body center CL, and due to this offset, the sub tank 14a
is drawn into the inside of the vehicle body so that its sub-tank 14a does not overlap with the exhaust pipe 11 in plan view. Since the sub-tank 14a is spaced apart from the exhaust pipe 11 in this manner, a large free space is created in the vertical direction between the exhaust pipe 11 and the rear arm 12, making piping of the brake hose 5 easy. Furthermore, due to such an offset of the buffer 14, the battery 1
It is also possible to arrange 6 in parallel.

The left-right positional relationship between the buffer 14 and the sub-tank 14a is not necessarily limited to that shown in the figure, and as long as both are in the left-right relationship, the left and right sides may be interchanged.

When the shock absorber 14 is offset with respect to the vehicle body center CL as described above, it is desirable that the lower end of the shock absorber 14 be directly connected to the rear arm 12 as in this embodiment.

That is, although there is a method of connecting the lower end of the shock absorber 14 and the rear arm 12 via a link, the former method is more advantageous. This is because when using this link, the link passes between the left and right rear arms 12, 12, which increases the width of both armrests and limits the amount of offset.

〔Effect of the invention〕

As described above, the present invention arranges the exhaust pipe so as to extend back and forth just below the seat on one side of the vehicle body, pivots a pair of left and right rear arms to the rear of the vehicle body frame, and connects one exhaust pipe at the middle part in the width direction. In a motorcycle supported by a shock absorber and having a rear wheel brake hose piped to the upper front end of at least the rear arm on the side where the exhaust pipe is arranged, the shock absorber is disposed behind the air cleaner, and the shock absorber is disposed behind the air cleaner. Since the sub-tank connected to the left and right sides is arranged at a position separated from the exhaust pipe in a plan view, there is ample space for the arrangement of the brake hose in the vertical direction, making it possible to easily install the pipe several times.

[Brief explanation of drawings]

FIG. 1 is a side view showing the main parts of the motorcycle of the present invention shown in FIG. 4, FIG. FIG. 4 is a side view of a motorcycle according to an embodiment of the present invention. 1... Main frame, 2... Seat pillar, 3.
... Seat rail, 4... Engine, 5... Seat, 7... Rear wheel, 8... Carburetor, 0... Air cleaner, 11 Arm, 14... Shock absorber, 15...・Brake hose, K. 9...Intake connecting pipe, 1...Exhaust pipe, 12...Rear 14a...Sub tank, 16...Disc brake etc. Fig. 2

Claims (1)

[Claims] The exhaust pipe is arranged to extend forward and backward directly under the seat on one side of the vehicle body, and a pair of left and right rear arms are pivoted to the rear of the vehicle body frame, supported by a single shock absorber at the middle part in the width direction, and are connected to the rear wheels. In a motorcycle in which a brake hose for use in the vehicle is arranged at least at the upper part of the front end of the rear arm on the side where the exhaust pipe is arranged, the shock absorber is disposed behind the air cleaner, and a sub tank is connected to the left and right sides of the shock absorber. is arranged at a position spaced apart from the exhaust pipe in plan view.