JPH05254469A - Front fender mounting structure of motorcycle - Google Patents

Abstract

PURPOSE:To facilitate exchange of a front fender and to sufficiently cope with sealing ability for splashing of water and mud owing to rotation of a front wheel and also cope with arrangement of a brake hose and wiring of a meter cable. CONSTITUTION:A pair of right and left front forks 31 are supported on a steering shaft 5. The axle of a front wheel 35 is supported to an axle support part 33a formed to the lower part of the front fork 31, and also a front fender 46 with which the upper part of the front wheel is covered is removably mounted to the front fork 31, and a pair of through-holes 48 through which the front fork 31 can be inserted are formed in the front fender 46. The through-hole 48 is expanded internally and frontward in relation to the front fork 31, and a gap between the through-holes 48 and the front fork 31 is closed with a cover member 49.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front fender mounting structure for a motorcycle in which a front fender is replaceably mounted on a front fork.

[0002]

2. Description of the Related Art In a motorcycle, for example, a pair of left and right front forks are supported by an under bracket of a steering shaft, an axle support portion formed at a lower portion of the front fork supports an axle of a front wheel, and a front bracket is supported by an under bracket. Some fenders are detachably attached.

When the front fender is damaged, it is replaced with a new front fender. To facilitate the replacement of the front fender, the front fender and the rear fender are divided into two parts. There is.

[0004]

As described above, in the case where the front fender is divided into the front fender and the rear fender into two parts, the mounting structure for mounting to the under bracket becomes complicated, and the mounting work is troublesome, and the appearance is difficult. Is not good either. For this reason, if a large through hole is formed in the front fender so that the axle support portion of the front fork can also penetrate, by removing the front wheel from the front fork, the front fender can be easily removed from the front fork. ..

By the way, in this case, if a large through hole is formed on the rear side in the vehicle traveling direction, water and mud splash up due to the rotation of the front wheels especially on the rear side in the vehicle traveling direction, and the seal of the member for closing the large through hole. In addition, the rear side of the front fender becomes wider due to the formation of the large through hole, which may hinder the routing of, for example, a brake hose or a meter cable.

The present invention has been made in view of the above circumstances, and has a simple structure, the front fender can be easily replaced, and the sealing property and the brake due to the splashing of water or mud by the rotation of the front wheels. It is an object of the present invention to provide a front fender mounting structure for a motorcycle that can sufficiently handle routing of hoses and meter cables.

[0007]

In order to solve the above-mentioned problems, the present invention supports a pair of left and right front forks on a steering shaft, and an axle support portion formed at a lower portion of the front fork supports an axle of a front wheel. As well as
In a motorcycle in which a front fender that covers above the front wheel is detachably attached to the front fork, a pair of through holes through which the left and right front forks can pass are formed in the front fender, and the through holes are formed in the futonro fork. It is characterized in that it is enlarged inward and forward, and that the through hole and the front fork are closed by a lid member.

[0008]

According to the present invention, in order to replace the front fender, the front wheels are removed from the axle support portions of the pair of left and right front forks, then the front fender is removed from the under bracket of the steering shaft, and the lid for closing the through hole of the front fender is removed. Remove the parts. Then, with the axle support portion of the front fork on the front side, the front fender is removed, and in this state, the through hole of the new front fender is inserted and replaced. The through hole of the front fender is formed by expanding the inside and the front of the futonro fork. In the portion where the through hole is formed, the splashing of water or mud due to the rotation of the front wheel is weak, and the lid member Provides a good seal. Further, even if the front fender becomes wide due to the through hole formed in the front fender, this portion is not a portion around which the brake hose, the meter cable, and the like are routed, so that there is no obstacle to the routing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a front fender mounting structure for a motorcycle according to the present invention will be described in detail below with reference to the accompanying drawings. 1 is a side view of a motorcycle to which the invention is applied, FIG. 2 is a front view of the motorcycle, FIG. 3 is a side view of a front fender, FIG. 4 is a front view of a front fender, and FIG. 5 is a front fender. FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 5, FIG. 7 is a plan view showing a through hole of the front fender, and FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG.

In the drawing, reference numeral 1 is a scooter type vehicle, and a main frame 100 is welded to a head pipe 2 constituting the vehicle body of the scooter type vehicle 1 so as to extend rearward, and the head pipe 2 and the front side of the main frame 100 are welded. Is covered with a front cover 3 and a rear cover 4. A steering shaft 5 is rotatably provided on the head pipe 2, and a bar handle 6 extending left and right is provided on an upper portion of the steering shaft 5.
Is covered with a handle cover 7. The handlebar cover 7 is provided with a headlight 8 and a speedometer 9.

A footboard 10 is provided behind the rear cover 4, and a rear cover 11 is provided further behind the footboard 10.
Is provided. A unit swing engine 12 is arranged below the rear cover 11, and rear wheels 13 are attached to the rear side of the unit swing engine 12. Unit swing engine 1
The front end of 2 is supported by the vehicle body via the bracket 14, and the rear end of the 2 is supported by the vehicle body by the cushion unit 15. A tandem seat 16 is provided above the rear cover 11, a helmet storage box 17 is provided below the tandem seat 16, and a fuel tank 18 is disposed behind the helmet storage box 17.

The front cover 3 is attached to the rear cover 4, and a pair of left and right flashers 19 are attached to both sides of the front cover 3. The bracket 20 welded to the upper part of the head pipe 2 is surrounded by the front cover 3, the rear cover 4 and the front fender 46.
A main switch 21 and a regulator 22 are attached to the, and a battery 24, a horn 25, etc. are attached to a bracket 23 welded to the lower part. Front cover 3
A lid opening portion 26 is formed at a position facing the battery 24, and a maintenance lid 27 is detachably provided in the lid opening portion 26.

An under bracket 30 is fixed to the lower portion of the steering shaft 5, and this under bracket 30 is used.
The upper parts of the pair of left and right inner tubes 32 forming the pair of left and right front forks 31 are attached to the. An axle support portion 33a is integrally formed under the pair of left and right outer tubes 33 that form the pair of left and right front forks 31, and the axle 34 is supported by the axle support portion 33a. Is rotatably provided.

The pair of left and right front forks 31 has an inner tube 32 slidably provided in an outer tube 33, and the outer tube 33 is the inner tube 3.
The outer tube 33 is configured to be rotatable with respect to 2, and the rotation of the outer tube 33 is restricted by the presence of the axle 34. In other words, when the axle 34 is removed, the outer tube 33 can rotate with respect to the inner tube 32.

A brake mounting bracket portion 33b is integrally formed on the lower portion of the left outer tube 33, and a disc brake 36 is mounted on the brake mounting bracket portion 33b via a support bolt 37. The caliper 38 of the disc brake 36 is used for the front wheel 3
A pad 40 is arranged on both sides of the brake disc 39 that rotates integrally with the brake disc 39, and the pad 40 is slidably contacted with the brake disc 39 by the forward movement of the piston 38a to brake.

A brake hose 41 is attached to the caliper 38.
The brake fluid is supplied from the brake hose 41 to the caliper 38 by a brake operation of a brake lever (not shown) provided on the bar handle 6, and the piston 38a is advanced by this brake fluid. The brake hose 41 is the left outer tube 33.
It is supported by a metal fitting 43 attached by a screw 42.

A rotation detector 44 for the front wheel 35 is provided on the axle 34, which is a lower portion of the right outer tube 33, and a tip gear 45a of a speedometer cable 45 is connected to the rotation detector 44. The speedometer cable 45 is inserted into a holding portion 47 formed on the right side of the rear portion of the front fender 46 and is connected to the speedometer 9 provided on the handle cover 7.

The holding portion 47 has an outer surface on the right side portion of the front fender 46 that projects outward, and this projecting portion 47a.
It is configured by providing a frame portion 47c that forms the long hole 47b. The speedometer cable 45 is inserted into the elongated hole 47b to restrict movement of the speedometer cable 45 due to expansion and contraction of the front fork 31, and the speedometer cable 45 prevents the front fender 46 from being damaged. .. That is, even if the speedometer cable 45 moves within the elongated hole 47b, the speedometer cable 45 only contacts the protrusion 47a and does not contact the outer surface of the front fender 46.

A flat mounting surface 46a is formed in the central portion of the front fender 46, and a front side 46b in the vehicle traveling direction from the mounting surface 46a is wider than a rear side 46c, and a left side of the rear side 46c. Brake hose 41
A speedometer cable 45 is routed on the right side.
A pair of left and right through holes 48 through which the front fork 31 can penetrate are formed on the mounting surface 46a of the front fender 46. The through holes 48 are located on the front side in the vehicle traveling direction with respect to the portion 48b through which the main body of the front fork 31 penetrates. The enlarged portion 48a is formed by enlarging in an inward direction. A locking rib 48c is formed to extend inward around the through hole 48, and a guide rib 48d is formed to extend upward around the through hole 48, and a hook 48e is formed inside the guide rib 48d. It is formed at a position facing a notch 48f formed in the locking rib 48c.

The front fender 46 is attached by penetrating the front fork 31 into the through hole 48, and a resin cover 49 as a lid member is attached along a guide rib 48d formed around the through hole 48. An end portion 49a of the resin cover 49 is supported by a locking rib 48 formed around the through hole 48, and the end portion 4 of the resin cover 49 is further supported.
9a is locked by the hook 48e of the guide rib 48d to prevent the resin cover 49 from coming off. In this way, the resin cover 49 covers the through hole 48 and the front fork 3.
The inner tube 32 of No. 1 is closed.

The front fender 46 has its mounting surface 46a applied to the lower portion of the under bracket 30, and bolts 50 are screwed from the three boss portions 46d from the lower side to fix the fender. A wall 46e is formed on the front side of the front fender 46 at a position on the front side of the steering shaft 5. The wall 46e prevents water and mud from entering the bearing portions of the steering shaft 5 and the head pipe 2. ing. Further, a plurality of ribs 46f are formed inside the front fender 46 at predetermined intervals in the front-rear direction,
The front fender 46 is reinforced by the ribs 46f. Furthermore, a notch 46 is provided on the left side of the front fender 46.
g is formed, and the notch 46g serves as an escape for the brake hose 41.

For example, when the front fender 46 is damaged and needs to be replaced, the front wheel 35 and the disc brake 36 are removed from the outer tube 33 of the front fork 31, and then the bolt 50 is removed to attach the front fender 46 to the steering shaft 5. The resin cover 49 is removed from the under bracket 30, and the resin cover 49 is removed from the through hole 48 at this time.
Then, the outer tube 33 of the front fork 31 is rotated so that the axle support portion 33a and the brake mounting bracket portion 33b are on the front side, and the front fender 46 is pulled out and removed in accordance with the through hole 48 of the front fender 46.

Axle support portion 33 of the outer tube 33
a and the brake mounting bracket part 33b are on the front side,
The front fender is replaced by tightening it through the through hole of the new front fender and fixing it to the under bracket 30.

A portion of the through hole 48 of the front fender 46, through which the axle support portion 33a and the brake mounting bracket portion 33b of the front fork 31 penetrate, that is, an enlarged portion 48a, advances from a portion 48b through which the main body portion of the front fork 31 penetrates. Since the front sides are formed so as to face each other inward, there is no large through hole on the rear side where the water and mud are splashed up strongly by the rotation of the front wheels 35.
Further, even on the front side where the front fender 46 is weakly flipped up, the through hole 48 is closed by the resin cover 49, so that the rigidity and the fender function of the front fender 46 can be sufficiently secured.

Further, since there is a vehicle body cover near the front fender 46, and the rear side 46c for routing the brake hose 41, the meter cable 45, etc., can be made particularly narrow, which is an obstacle to the routing. With nothing,
Interference with the body cover can be prevented.

Furthermore, the through hole 4 of the front fender 46
Since 8 are formed inward with respect to each other on the front side in the vehicle traveling direction, the front side of the front fender 46 can also be downsized.

The present invention can be similarly applied to the upright and inverted front forks, and the through hole of the front fender may have an enlarged portion substantially parallel to the front-rear direction of the vehicle body.

[0028]

As described above, according to the present invention, the front fender is formed with a pair of through holes through which the left and right front forks can penetrate, and the through holes are enlarged inward and forward of the futonro fork. When you replace the front fender, you can easily remove the front fender and replace it with a new front fender by rotating the axle support of the front fork forward and aligning it with the through hole of the front fender. it can.

Further, since the through hole is expanded inward and forward of the futonro fork and the space between the through hole and the front fork is closed by the lid member, the rotation of the front wheel at the portion where the through hole is formed. The splashing of water or mud due to is weak, and the sealing can be sufficiently performed with the closing lid member. Also, even if the front fender becomes wide due to the through hole formed in the front fender, the rear side of this part can be made narrower, which may be an obstacle to routing the brake hose and meter cable. There is no.

[Brief description of drawings]

FIG. 1 is a side view of a motorcycle.

FIG. 2 is a front view of the motorcycle.

FIG. 3 is an enlarged side view of a front fender portion of the motorcycle.

FIG. 4 is an enlarged front view of a front fender portion of the motorcycle.

FIG. 5 is an enlarged plan view of a front fender portion of the motorcycle.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a plan view showing a through hole of a front fender.

8 is a sectional view taken along line VIII-VIII of FIG.

[Explanation of symbols]

 1 Scooter Type Vehicle 2 Head Pipe 5 Steering Shaft 30 Under Bracket 31 Front Fork 33a Axle Support 33b Brake Mounting Bracket 36 Disc Brake Brake 46 Front Fender 48 Through Hole 49 Resin Cover

Claims (1)

[Claims] 1. A pair of left and right front forks is supported by a steering shaft, an axle of a front wheel is supported by an axle support portion formed at a lower portion of the front fork, and a front fender that covers the front wheel is attached to and detached from the front fork. In a motorcycle that can be attached, a pair of through holes through which the left and right front forks can penetrate are formed in the front fender, and the through holes are enlarged inward and forward of the futonro fork, and the through holes are formed. A front fender mounting structure for a motorcycle, wherein a space between the front fork and the front fork is closed.