JPH10250662A - Rear fender device of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of component parts and man-hours for installation while the mounting strength is well maintained. SOLUTION: A rear fender device 21 is composed of a front-part rear fender 22, an extension rear fender 24 installed behind the front-part rear fender 22, and a rear-part rear fender 23 located over the joint part of the front-part rear fender 22 with the extension rear fender 24. Parts of a left and a right body frame are coupled together so that a bridge part 25 is formed, and a locking part 26 is formed at the tail of the rear fender 22 and locked to the bridge part 25, and an overlapping part 44 is formed on the extension rear fender 24 and located right over the locking part 26 so that the extension rear fender 24 is secured to the body frames.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rear fender device for a motorcycle.

[0002]

2. Description of the Related Art A motorcycle is provided with a mudguard for preventing mud and splashes splashed from wheels from hitting a vehicle body and a rider. This mudguard is generally called a fender, and one mounted on a front wheel is called a front fender, and one mounted on a rear wheel is called a rear fender.

The rear fender is generally fixed to a body frame such as a seat rail with bolts or screws and does not follow the vertical movement (suspension stroke) of the rear wheel. Also, since the rear fender is integrally formed of, for example, resin and the like, and has an article storage space therein,
Conventionally, an oil tank, a battery, and other sacrifice items are stored in this space.

[0004]

However, since the oil tank is relatively heavy, if the oil tank is held by the rear fender, it is necessary to strengthen the fixing between the rear fender and the vehicle body frame and increase the strength of the rear fender. The increase in the number of parts and the number of assembling steps due to the addition of stays and brackets increases the cost.

The present invention has been made in view of the above circumstances, and has as its object to provide a motorcycle rear fender device that reduces the number of parts and the number of assembly steps while maintaining the mounting strength.

[0006]

According to a first aspect of the present invention, there is provided a motorcycle rear fender apparatus comprising: a front rear fender;
The vehicle has a rear fender device including an extension rear fender disposed behind the front rear fender and a rear rear fender disposed above a joint between the front rear fender and the extension rear fender. In addition to forming the bridge portion by connecting the portions, a locking portion is formed at the rear end of the front rear fender, and the locking portion is locked to the bridge portion, while the overlapping portion is formed at the extension rear fender. The overlapping portion is disposed immediately above the locking portion, and the extension rear fender is fixed to the vehicle body frame.

In order to solve the above-mentioned problem, a storage space is formed in the front rear fender, and a holding portion is formed in front of the overlapping portion of the extension rear fender. A sacrificial item is sandwiched and fixed between the holding portion and the bottom surface of the storage space.

Further, in order to solve the above-mentioned problems,
As described in claim 3, a locking projection is formed on a rear inner surface of the rear rear fender, a locking hole is formed in the extension rear fender at a position corresponding to the locking projection, and the locking of the rear rear fender is performed. After the projection is locked in the locking hole, the front portion of the rear rear fender is fixed to the vehicle body frame.

[0009]

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

FIG. 1 is a left side view showing an example of a motorcycle to which the present invention is applied.

As shown in FIG. 1, the motorcycle 1 has a body frame 2. The body frame 2 mainly includes a pair of left and right tank rails 3 and a pair of left and right seat rails 4. The tank rail 3 extends obliquely rearward and downward from the front of the vehicle body, and a seat rail 4 extends obliquely upward toward the rear of the vehicle body from the rear end.

A fuel tank 5 is arranged above the tank rail 3, and an operation seat 6 is arranged above the seat rail 4. Further, a pivot portion 7 extends downward from a lower rear end of the tank rail 3, and a footrest 8 is provided at a lower end of the pivot portion 7.

On the other hand, a head pipe 9 is provided at the front end of the tank rail 3, and a steering mechanism 10 is provided on the head pipe 9. The steering mechanism 10 includes a front fork 12 that rotatably and elastically supports the front wheel 11, a handlebar 13, and the like.

A pivot shaft 14 is provided between the pivot portions 7 in the vehicle width direction. A front portion of a swing type power unit 15 is swingably connected to the pivot shaft 14 via a stay 16.

The swing type power unit 15 (hereinafter simply referred to as a power unit) integrally includes a two-cycle single-cylinder engine 17 and a transmission case 18 extending rearward from one side of the engine 17. Conduction case 1
Reference numeral 8 also serves as a swing arm, and is elastically supported by the body frame 2 by a rear shock absorber 19.
A rear wheel 20 serving as a drive wheel is provided at the rear end of the transmission case 18.
Is held.

Above the rear wheel 20, a rear fender 21
Is provided. The rear fender device 21 mainly includes a front rear fender 22, a rear rear fender 23, and an extension rear fender 24. The rear fender device 21 is attached to the seat rail 4, and an extension rear fender 24 is provided behind the front rear fender 22 and a rear rear fender 23 is provided above a joint between the front rear fender 22 and the extension rear fender 24.
Are respectively arranged.

FIG. 2 is a side view of the rear fender device 21, and FIG. 3 is a plan view of the rear fender device 21. FIG. 4 is a sectional view taken along line IV-IV in FIG. As shown in FIGS. 2 to 4, the pair of left and right seat rails 4
A part thereof, for example, a rear end is connected to form a bridge portion 25.

On the other hand, a front rear fender 22 is arranged between the seat rails 4. At the rear end of the front rear fender 22, a locking portion 26 formed, for example, in an inverted U-shape is formed.
The locking portion 26 is locked to the bridge portion 25 of the seat rail 4 from above. The front side of the front rear fender 22 is fixed to a stay 27 provided on the seat rail 4 by, for example, a screw 28.

An oil tank storage space 29 is formed at the front of the front rear fender 22 shown in this embodiment.
A sacrificial article storage space 30 is formed at the rear of the front rear fender 22, and a battery storage space 31 is formed between the space 30 and the oil tank storage space 29. In each of the spaces 29 to 31, an oil tank 32, a CDI unit 33 as a sacrifice item, and a battery 34 are arranged.

The oil tank 32 has a locking portion 35 at its front.
This locking portion 35 is locked from above by a bridge pipe 36 provided between the tank rails 3. A bridge plate 37 is provided between the seat rails 4, and a rear portion of the oil tank 32 is fixed to a stay 38 extending downward from the bridge plate 37 by, for example, a screw 39.

An extension rear fender 24 is disposed behind the front rear fender 22. The extension rear fender 24 is fixed, for example, with a bolt 41 to a stay 40 extending rearward from a bridge portion 25 of the seat rail 4 in the vicinity of an intermediate portion thereof. The front portion of the extension rear fender 24 is fixed to a stay 42 extending inward in the middle of the seat rail 4 by, for example, a bolt 43.

An overlap portion 44 is formed at an intermediate portion of the extension rear fender 24. The overlapping portion 44 is disposed immediately above the locking portion 26 provided at the rear end of the front rear fender 22, and the locking portion 26 comes off the bridge portion 25 when the extension rear fender 24 is fixed to the seat rail 4. To prevent

A pressing portion 45 is formed just above the CDI unit 33 in front of the overlapping portion 44.
The CDI unit 33 is sandwiched and fixed between 5 and the bottom of the sacrificial article storage space 30.

A rear rear fender 23 is disposed above a joint between the front rear fender 22 and the extension rear fender 24. A locking projection 46 is formed on the rear inner surface of the rear rear fender 23 so as to project forward.
A locking hole 47 is formed in the extension rear fender 24 at a position corresponding to the locking projection 46.

On the other hand, the seat rail 4 near the battery 34
A bridge plate 48 is erected between them. Then, the rear rear fender 23 locks the locking projection 46 in the locking hole 47, and then the front portion of the rear rear fender 23 is fixed to the bridge plate 48 by, for example, a bolt 49. Further, as shown in FIG. 2, the bridge plate 48 is covered with the operation seat 6 from above.

Next, the operation of the present embodiment will be described.

Part of the pair of left and right seat rails 4, for example, the rear ends are connected to form a bridge portion 25, and a locking portion 26 is formed at the rear end of the front rear fender 22. Of the extension rear fender 24 is formed at the middle of the extension rear fender 24, and the overlap portion 44 is disposed immediately above the locking portion 26 so that the extension rear fender 24 is attached to the seat rail 4. Fixed to the front rear fender 2
(2) The number of attachment members can be reduced, and the locking portion 26 is prevented from coming off the bridge portion 25.

Also, the extension rear fender 24
A holding portion 45 is formed in front of the overlapping portion 44 in the middle, and the holding portion 45 and the bottom surface of the sacrificial item storage space 30 of the front rear fender 22 sandwich and fix a sacrificial item such as the CDI unit 33. Thereby, members for fixing sacrificial items can be reduced.

Further, a locking projection 46 is formed on the inner surface of the rear portion of the rear rear fender 23, and a locking hole 47 is formed in the extension rear fender 24 at a position corresponding to the locking projection 46.
And the locking projection 4 of the rear rear fender 23 is formed.
After the 6 is locked in the locking hole 47, the front portion of the rear rear fender 23 is fixed to the seat rail 4 with, for example, bolts 49, so that the number of members for mounting the rear rear fender 23 can be reduced.

Further, a locking portion 35 is formed at a front portion of the oil tank 32, and the locking portion 35 is locked by a bridge pipe 36 provided between the tank rails 3.
By mounting a bridge plate 37 between the seat rails 4 and fixing a rear portion of the oil tank 32 to a stay 38 extending downward from the bridge plate 37, the load of the oil tank 32 is not applied to the front rear fender 22. There is no need to increase the strength of the rear fender 22,
Members such as reinforcing members can be reduced.

By reducing the number of members for mounting and fixing each member and the members such as reinforcing members, the number of parts and the number of assembling steps can be reduced, so that the cost can be reduced and the weight can be reduced. Become.

[0032]

As described above, according to the rear fender device for a motorcycle according to the present invention, a front rear fender, an extension rear fender disposed behind the front rear fender, the front rear fender and the extension rear fender are described. And a rear fender device comprising a rear rear fender disposed above a joint with the rear fender, and a bridge portion is formed by connecting a part of a pair of left and right body frames to a rear end of the front rear fender. A locking portion is formed, and the locking portion is locked to the bridge portion, while a overlapping portion is formed on the extension rear fender, and the overlapping portion is disposed immediately above the locking portion, and the extension rear fender is mounted on the extension rear fender. Since it is fixed to the body frame, the number of members for attaching the front rear fender can be reduced.

Further, a storage space is formed in the front rear fender, and a pressing portion is formed in front of the overlapping portion of the extension rear fender, and a sacrifice item is sandwiched between the pressing portion and the bottom surface of the storage space. Since it is fixed, the members for fixing the sacrificial article can be reduced.

Further, a locking projection is formed on the inner surface of the rear portion of the rear rear fender, a locking hole is formed in the extension rear fender at a position corresponding to the locking projection, and the locking projection of the rear rear fender is connected to the engaging projection. Since the front portion of the rear rear fender is fixed to the vehicle body frame after being locked in the blind hole, the number of members for mounting the rear rear fender can be reduced.

[Brief description of the drawings]

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

FIG. 2 is a side view of the rear fender device.

FIG. 3 is a plan view of a rear fender device.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motorcycle 2 Body frame 3 Tank rail 4 Seat rail 21 Rear fender device 22 Front rear fender 23 Rear rear fender 24 Extension rear fender 25 Bridge part 26 Engagement part of front rear fender rear end part 29 Oil tank storage space 30 Sacrifice goods storage space 31 Battery Storage Space 32 Oil Tank 33 CDI Unit (Sacrificial Items) 35 Locking Portion in Front of Oil Tank 44 Overlapping Portion 45 Holding Portion 46 Locking Projection 47 Locking Hole

Claims (3)

[Claims] 1. A front rear fender 22; an extension rear fender 24 disposed behind the front rear fender 22; and a rear rear fender 23 disposed above a joint between the front rear fender 22 and the extension rear fender 24. It has a rear fender device 21 configured, and connects a part of a pair of left and right body frames 2 (3) to form a bridge portion 25 and forms a locking portion 26 at the rear end of the front rear fender 22. Then, while the locking portion 26 is locked to the bridge portion 25, the overlapping portion 44 is formed on the extension rear fender 24, and the overlapping portion 44 is disposed directly above the locking portion 26 to form the extension rear fender 24. Is secured to the body frame 2 (3). 2. A storage space 30 is formed in the front rear fender 22 and a holding portion 45 is formed in front of the overlapping portion 44 of the extension rear fender 24.
The motorcycle rear fender device according to claim 1, wherein the holding portion (45) and the bottom surface of the storage space (30) sandwich and fix the sacrificial article (33). 3. A locking projection 46 is formed on a rear inner surface of the rear rear fender 23, and a locking hole 4 is formed in the extension rear fender 24 at a position corresponding to the locking projection 46.
7. The front part of the rear rear fender 23 is fixed to the vehicle body frame 2 (3) after the locking projection 46 of the rear rear fender 23 is formed in the locking hole 47 and the front part of the rear rear fender 23 is locked. Motorcycle rear fender device.