JPS5973377A - Rear fender device for motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a motorcycle rider device.

More specifically, the rear fender is formed by a movable front half body attached to the air cleaner case of the swing type power unit and a fixed half body attached to the vehicle body, and the opposing parts of the front and half bodies cover the range of the movable side stroke. In addition to ensuring that the air cleaner case and the front half of the rear fender are integrated, the clearance between the tires and the air cleaner case is constant while maintaining an L shape, which allows them to be restrained by the rear fender. This makes it possible to increase the volume of the air cleaner case, and furthermore, by forming one of the lamp parts with a flexible material, the front half of the fender can be rested, and the air cleaner case including the air cleaner case can be easily removed. The present invention relates to a rear suspension device for a motorcycle which is preferable in terms of maintenance and maintenance.

The motorcycle rear fender is fixed to the rear of the vehicle body in the case of the power unit, and the installation space of the air cleaner case attached to the power unit is limited, and the rocking stroke of the power unit causes the case to Due to the risk of fender interference, the capacity is limited or the fender needs to be shortened.

On the other hand, when the rear fender is entirely supported on the power unit side, the mass of the rear fender due to its swing is large;
The strength and rigidity of this supporting part and the rear fender supporting part must be increased, and there is also a balance between space and installation with the air cleaner case on the power unit side, so it cannot be said to be optimal.

The inventors of the present invention have devised the present invention in order to solve the above-mentioned problems.The purpose of this invention is to support the rear fender on the rear half body on the fixed side of the vehicle body and on the air cleaner case installed in the power unit. It consists of a movable front half,
In addition to providing a wrap section on the opposite side, one side of the wrap section is made of a flexible material to ensure reliable blocking of muddy water, increase the volume of the air cleaner case, rationalize fender support, and facilitate attachment and detachment of the air cleaner case. An object of the present invention is to provide a motorcycle fender device which improves maintainability and the like.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view of a motorcycle. The motorcycle 1 has a main frame 2, a helad tube 3 extending diagonally rearward and downward, and a rear frame 4 extending diagonally upward and rearward at the rear lower part of the frame 2.
A seat 5 is provided on the upper part of the rear frame 4, and a fuel tank 6 is provided astride the main frame 2.

The front part of a power unit 9, which also includes an engine 7 and a transmission gear 8, is pivotally attached to the front lower part of the rear frame 4, and the rear wheel 11 is supported at the rear of the unit 9, as well as the upper part of the rear catcher frame 4. A rear cushion unit 12 is interposed between the two.

A front fork 13 is pivotally attached to the head tube 3 so that it can be steered freely, and a front wheel 14 is attached to the lower part of the front fork 13.
A handle 15, a headlamp 16, a meter 17, etc. are provided on the upper part of the front fork 13 via a top bridge.

Figure 2 is an enlarged view of the rear part, showing the upper member 1 of the rear frame 4.
9 is extended and fixed, and a tail unit 20 such as a tail light is attached to this. A rear fender member 21 hangs diagonally forward and downward from the lower front part of the rear cover 18, and the member 21 extends halfway to form a fixed side. The lower part, that is, the front part of the member 21 is connected to the rear part of a mudguard 22 having the same cross section as the fender made of a flexible material such as rubber, and the lower end 22a of the mudguard 22 is a free end.

On the other hand, an air cleaner case 24 is previously installed between the carburetor 23 and the rear cushion unit 12 at the rear of the engine 7 of the power unit 9, and a front half body 25 is attached and supported on the inner surface of the air cleaner case 24. . The rear fender front half body 25 extends below and above the case 24, and the upper part, which is the rear part, partially bulges forward to form a step as shown in FIG. An overlapping wrap portion 25a is formed, and the wrap portion 25a is set to a length that covers the range of the swinging stroke of the front half body 25, which is the movable side. Line N in Fig. 3 indicates the full position, N indicates the center when the unit is fully bent, position a of the unit and wheel indicates the full position, and position M indicates the full position.
b indicates the fully flexed state, and even when fully flexed, the wheels interfere with the mudguard 22. As the unit 9 swings, the air cleaner case 24 and the fender front half 25 swing.
The stepped wall 25b of the wrap portion 25a is in contact with the front end of the mudguard to block muddy water from entering forward, and the mudguard 22
Since it is made of rubber, the sole properties between the step walls 25b are ensured to be good, and the muddy water blocking function is maintained at a high level.

The Rukoto. The air cleaner case and the front half of the fender are shown as a when they are fully bent, and b when they are fully bent.

Furthermore, by forming the step wall 25b obliquely, the Zenda front half body 25 can move while making contact with the front end of the mud card 22 with its arc movement when swinging about the pivot point 10 as a fulcrum.
Sealing can be performed while relatively moving between the fenders 2L25.

As is clear from the above, according to the present invention, the rear fender can be divided and muddy water etc. can be reliably blocked, and the air cleaner case support side of the rear fender is also lightweight and small, making it easy to support the air cleaner case and the rear fender. In addition, since a part of the rear fender moves integrally with the air cleaner case, there is no interference with the tires, ensuring sufficient capacity of the air cleaner case, and the flexible body does not move when installing or removing the air cleaner. Since the mudguard is provided on the lap part, it can be easily done and has many advantages such as being convenient in terms of maintenance.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic side view of the motorcycle, FIG. 2 is an enlarged view of the rear part of the motorcycle, and FIG. 3 is an explanatory diagram of the swinging of the motorcycle. In the drawings, 1 is a motorcycle, 9 is a power unit, 24 is an air cleaner case, 25 is a rear fender front half, 1
8, 19. 21 is the rear half body of the rear end, 22 is a flexible body.

Claims (1)

[Scope of Claims] 1. A motorcycle in which an engine and a transmission case containing a means for transmitting engine power to rear wheels are integrated to form a power unit, and the power unit is pivotably pivoted to the vehicle body. In this system, the rear fender is formed of front and rear divided members, and the front half of the rear fender is supported by an air cleaner case attached to the power unit.
The rear fender half body is supported on the vehicle body side, and the rear fender half body overlaps with the rear fender half body front part,
A motorcycle riding device characterized in that a wrap portion is provided to cover the stroke range of the front half body. 2. The motorcycle rear fender device according to claim 1, wherein one of the wrap portions of the front and rear halves of the rear fender is formed of a flexible member. −