JP3575216B2 - Rear fender device for motorcycle - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rear fender device for a motorcycle.
[0002]
[Prior art]
The motorcycle is provided with a mudguard for preventing mud and splashes splashed from the wheels from hitting the vehicle body and the rider. The mudguards are generally called fenders, and those mounted on the front wheels are called front fenders, and those mounted on the rear wheels are called rear fenders.
[0003]
Generally, the rear fender is 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. Further, since the rear fender is integrally formed of, for example, resin and has an article storage space therein, an oil tank, a battery, other sacrificial items, and the like have been conventionally stored in this space.
[0004]
[Problems to be solved by the invention]
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 body frame and also increase the strength of the rear fender. And the number of assembling steps increases, which causes a cost increase.
[0005]
SUMMARY OF THE INVENTION 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]
[Means for Solving the Problems]
In order to solve the above-described problems, a motorcycle rear fender device according to the present invention includes a front rear fender, an extension rear fender disposed behind the front rear fender, and a front fender. A rear fender device comprising a rear rear fender disposed above a joint between the rear rear fender and the extension rear fender. The rear fender device connects a part of a pair of left and right body frames to form a bridge portion, and the front rear fender A locking portion formed in an inverted U-shape is formed at the rear end portion, and the locking portion is locked to the bridge portion from above while the overlapping portion is formed on the extension rear fender, and the overlapping portion is The extension rear fender is disposed directly above the locking portion, and is fixed to the vehicle body frame. The stopping portion is prevented from coming off the bridge portion, and 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 the pressing portion and the bottom surface of the storage space are formed. The sacrifice items are sandwiched and fixed between them.
[0008]
Furthermore, in order to solve the above-mentioned problem, a locking projection is formed on a rear inner surface of the rear rear fender, and a locking hole is formed in the extension rear fender at a position corresponding to the locking projection. And a locking projection of the rear rear fender is locked in the locking hole, and then a front portion of the rear rear fender is fixed to the vehicle body frame.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 is a left side view showing an example of a motorcycle to which the present invention is applied.
[0011]
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.
[0012]
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.
[0013]
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 wheels 11, a handlebar 13, and the like. The handlebars 13 steer the front wheels 11 rotatably right and left.
[0014]
A pivot 14 is provided between the pivots 7 in the vehicle width direction. A front portion of a swing type power unit 15 is swingably connected to the pivot 14 via a stay 16.
[0015]
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. The transmission case 18 also serves as a swing arm, and is elastically supported by the body frame 2 by a rear shock absorber 19. Then, a rear wheel 20 as a driving wheel is held at the rear end of the transmission case 18.
[0016]
Above the rear wheel 20, a rear fender device 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 disposed behind the front rear fender 22, and a rear rear fender 23 is disposed above a joint between the front rear fender 22 and the extension rear fender 24.
[0017]
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, a pair of left and right seat rails 4, for example, rear ends thereof are connected to form a bridge portion 25.
[0018]
On the other hand, the front rear fender 22 is arranged between the seat rails 4. At the rear end of the front rear fender 22, for example, an inverted U-shaped locking portion 26 is formed, and 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.
[0019]
An oil tank storage space 29 is formed at the front of the front rear fender 22 shown in the present 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 serving as a sacrifice item, and a battery 34 are arranged.
[0020]
The oil tank 32 has a locking portion 35 formed at a front portion thereof, and the 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.
[0021]
An extension rear fender 24 is arranged behind the front rear fender 22. The intermediate portion of the extension rear fender 24 is fixed to a stay 40 extending rearward to the bridge portion 25 of the seat rail 4 by, for example, a bolt 41. 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.
[0022]
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 is detached from the bridge portion 25 when the extension rear fender 24 is fixed to the seat rail 4. To prevent
[0023]
A pressing portion 45 is formed just above the CDI unit 33 in front of the overlapping portion 44, and the CDI unit 33 is sandwiched and fixed between the pressing portion 45 and the bottom surface of the sacrificial article storage space 30.
[0024]
Above the joint between the front rear fender 22 and the extension rear fender 24, a rear rear fender 23 is disposed. A locking projection 46 projecting forward is formed on the rear inner surface 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.
[0025]
On the other hand, a bridge plate 48 is provided between the seat rails 4 near the battery 34. After locking the locking projection 46 in the locking hole 47 of the rear rear fender 23, 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.
[0026]
Next, the operation of the present embodiment will be described.
[0027]
A bridge portion 25 is formed by connecting a part of the pair of left and right seat rails 4, for example, a rear end, and a locking portion 26 is formed at a rear end portion of the front rear fender 22. While being locked to the portion 25 from above, an overlap portion 44 is formed in the middle portion of the extension rear fender 24, and the overlap portion 44 is disposed immediately above the locking portion 26 to fix the extension rear fender 24 to the seat rail 4. Thus, the number of members for attaching the front rear fender 22 can be reduced, and the locking portion 26 is prevented from coming off the bridge portion 25.
[0028]
Further, a holding portion 45 is formed in front of the overlapping portion 44 in the middle of the extension rear fender 24, and the holding portion 45 and the bottom surface of the sacrificial item storage space 30 of the front rear fender 22 allow sacrificial items such as the CDI unit 33. By pinching and fixing, the number of members for fixing sacrificial items can be reduced.
[0029]
Further, a locking projection 46 is formed on the rear inner surface of the rear rear fender 23, 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 46 of the rear rear fender 23 is engaged. After being locked in the stop holes 47, the front part 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.
[0030]
Furthermore, a locking portion 35 is formed at the front portion of the oil tank 32, the locking portion 35 is locked by a bridge pipe 36 provided between the tank rails 3, and a bridge plate 37 is provided between the seat rails 4. By mounting the rear portion of the oil tank 32 on 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, so that the strength of the front rear fender 22 needs to be increased. Therefore, members such as reinforcing members can be reduced.
[0031]
By reducing the number of members for mounting and fixing each member and the number of reinforcing members, the number of parts and the number of assembling steps can be reduced, so that cost can be reduced and weight can be reduced.
[0032]
【The invention's effect】
As described above, according to the rear fender device for a motorcycle according to the present invention, the front rear fender, the extension rear fender disposed behind the front rear fender, and the upper part of the joint between the front rear fender and the extension rear fender And a rear fender device composed of a rear rear fender disposed at a rear end of the front rear fender. Forming a formed locking portion, locking the locking portion to the bridge portion from above, while forming a overlap portion on the extension rear fender, the overlap portion is disposed immediately above the locking portion, When the extension rear fender is fixed to the body frame, the locking part comes off from the bridge part. Preventing, furthermore, while forming a storage space in the front rear fender, forming a pressing portion in front of the overlapping portion of the extension rear fender, sandwiching sacrificial goods between the pressing portion and the bottom surface of the storage space, Since the members are fixed, the number of members for attaching the front rear fender can be reduced and the number of members for fixing the sacrificial items can be reduced.
[0034]
Further, 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 a locking projection of the rear rear fender is formed in the locking hole. After the locking, the front portion of the rear rear fender is fixed to the vehicle body frame, so that 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 section 26 Front rear fender rear end locking section 29 Oil tank storage space 30 Sacrificial goods storage space 31 Battery storage space 32 Oil tank 33 CDI unit (sacrifice item)
35 Locking section 44 in front of oil tank 44 Overlapping section 45 Holding section 46 Locking projection 47 Locking hole

Claims (2)

A rear fender device including a front rear fender, 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; A part of the vehicle body frame is connected to form a bridge part, and a locking part formed in an inverted U-shape is formed at the rear end of the front rear fender, and this locking part is connected to the bridge part. While being locked from above, the overlapping portion is formed on the extension rear fender, and the overlapping portion is disposed immediately above the locking portion, and the locking portion is fixed to the vehicle body frame so that the locking portion becomes a bridge portion. From the upper rear fender and a storage space in the front rear fender. Extension rear to form a pressing portion in front of the overlapping portion fender, to sandwich the pressing portion and犠装products at the bottom surface of the storage space, a rear fender device for a motorcycle, characterized in that fixed. 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 a locking projection of the rear rear fender is locked in the locking hole. 2. The rear fender device for a motorcycle according to claim 1, wherein the front portion of the rear rear fender is fixed to the vehicle body frame after the driving.

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