JPH11198879A - Motorcycle - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable a component to be firmly attached to a front fender without using a component for reinforcement. A flat flat surface (40) is formed at the center of the inner surface of a front fender (3) in the vehicle width direction so as to be parallel to the tangential direction of the outer surface of this portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle having a front fender made of synthetic resin.

[0002]

2. Description of the Related Art A conventional synthetic resin motorcycle front fender has a constant thickness over the entire area, and is curved so that a central portion in a vehicle width direction projects radially outward of a front wheel from both side portions. It is formed. In order to attach a component to this type of front fender, it is common to, for example, drill a through hole and fasten the component to the front fender with a bolt inserted through the through hole. When components are mounted on the front side of the front fender, a reinforcing plate is interposed between the back surface of the front fender and the head or nut of the bolt in addition to the washer.

[0003]

However, in order to attach parts to a synthetic resin front fender, a reinforcing plate must be used as described above, so that the number of parts increases and the weight increases. There was a problem.

The present invention has been made to solve such a problem, and an object of the present invention is to enable a component to be firmly attached to a front fender without using a reinforcing component.

[0005]

In order to achieve this object, a motorcycle according to the present invention has a flat flat surface at the center in the vehicle width direction of an inner surface of a front fender parallel to a tangential direction of an outer surface of this portion. It is formed so that According to the present invention, since the flat surface forming portion of the front fender is thicker than other portions and has higher rigidity, it is possible to reinforce the front fender with the flat surface forming portion without using a reinforcing component. it can.

A motorcycle according to another aspect of the present invention is the motorcycle according to the above-described invention, wherein two flat surfaces are provided on the front fender at two locations on the front side of the front fork with respect to the vehicle body in the front-rear direction and the vehicle width direction is increased. It is formed so that it can be divided into one and the other, and through holes for attaching parts are formed in these flat surface forming parts,
The license plate mounting bracket is mounted on the center portion of the front fender in the vehicle width direction by bolts inserted into these through holes for mounting components.

According to the present invention, the bolt supporting the front side of the license plate and the bolt supporting the rear side are disposed on one side and the other side in the vehicle width direction with respect to the license plate. Can be attached to the front fender while supporting it from both sides in the vehicle width direction.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a motorcycle according to the present invention will be described in detail with reference to FIGS. 1 is a side view of a motorcycle according to the present invention, FIG. 2 is an enlarged side view showing an upper portion of a front fork, FIG. 3 is an enlarged side view showing a front portion of a front fender, and FIG. is there. FIG. 5 is a sectional view taken along line VV in FIG.
6 is a sectional view taken along line VI-VI in FIG. 3, and FIG. 7 is an enlarged front view showing a cover for an under bracket of a front fork. FIG. 7 shows the under bracket cover and a part of the headlight stay in a partially broken state. FIG. 8 is a sectional view showing the mounting structure of the under bracket cover of the front fork, and FIG. 9 is a perspective view showing the under bracket cover and the headlight stay of the front fork.

In these figures, the reference numeral 1 denotes a motorcycle according to this embodiment. In the motorcycle 1, a front fender 3 made of a synthetic resin is mounted on a front fork 2, and a license plate 4 is mounted on the front fender 3. 1, reference numeral 5 denotes a front wheel, 6 denotes a steering handle, 7 denotes a headlight, 8 denotes an engine, 9 denotes a rear wheel, 10 denotes a fuel tank, 11
Indicates a sheet.

The front fork 2 is of a conventionally known telescopic type, and an inner tube 12 of a fork tube forming a pair in the vehicle width direction is denoted by a reference numeral 13 in FIG.
It is held by an under bracket and an upper bracket indicated by 14. As shown in FIG. 7, the under bracket 13 and the upper bracket 14 divide the inner tube 12 into slits 15 and fastening bolts 16.
And is rotatably supported by a head pipe 18 of a vehicle body frame 17 via a steering shaft (not shown) as shown in FIG.

In this embodiment, the fastening bolts 16 of the under bracket 13 are covered and hidden from the front and both sides of the vehicle body by an under bracket cover indicated by reference numeral 19 in FIG. This under bracket cover 19
As shown in FIGS. 8 and 9, the cover body 20 and the connecting cylinder 21 on the back side of the cover body 20 are made of synthetic resin.
And a fixing screw 23 for a headlight stay 22 for supporting the lower end of the headlight 7.
Fixed by.

The connecting tube 21 is formed in a rectangular tube shape,
As shown in FIG. 3, a front end of the vehicle body is connected to the cover main body 20, and a recess 24 for fitting a mounting piece 22a at a lower end of the headlight stay 22 to a lower wall is provided. A through hole 25 for inserting the screw 23 is formed. The mounting piece 22 is provided in the recess 24.
The connecting cylinder 21 is fixed to the mounting piece 22a with the fixing screw 23 in a state in which a is fitted. The fixing screw 23 is
As shown in FIG. 8, a U-shaped nut 23a mounted on the connecting cylinder 21 from the rear side of the vehicle body is screwed from below. The cover main body 20 has an opening 26 (see FIGS. 7 and 8) for drawing out a die for molding the inner surface of the connecting cylinder 21 toward the front side of the vehicle body, at a portion corresponding to the front end of the connecting cylinder 21. The opening 26 is covered and hidden by attaching an emblem 27 to the front surface of the cover body 20.

The headlight stay 22 is formed by bending a steel plate so that the mounting piece 2 at the lower end is formed.
2a and a headlight mounting piece 22b at the upper end and an arm 22c between these mounting pieces are integrally formed and fixed to the front surface of the under bracket 13 by fixing bolts indicated by reference numeral 28 in FIG. I have.

Before the arm 22c fixes the under-bracket cover 19 to the headlight stay 22 with the fixing screw 23, the under-bracket cover 1
9 for holding the headlight stay 22
Are formed at one end and the other end in the vehicle width direction so as to project forward of the vehicle body. These arms 22c
Is set to be slightly smaller than the distance between both side surfaces 21a of the connecting cylinder 21.

That is, by holding the connecting tube 21 between the upper surface of the mounting piece 22a and the lower surface of the arm 22c, the under bracket cover 19 can be held by the headlight stay 22. As described above, the fixing screw 23 is inserted into the mounting piece 22a of the headlight stay 22 and the connecting tube 21 from below with the mounting piece 22a and the arm 22c holding the under bracket cover 19 as described above. And screwed to the nut 23a.
This is carried out by fastening the two by 3. In this manner, the fastening operation with the fixing screw 23 can be performed in a state where the under bracket cover 19 is held by the mounting piece 22a and the arm 22c, so that the assembling property is good.

By attaching the under bracket cover 19 as described above, the under bracket 13
The fastening bolt 16 for fastening the inner tube 12 to the cover body 20 from the front and both sides of the vehicle body.
And a fixing screw 23 for attaching the under bracket cover 19 to the headlight stay 22, and a headlight stay 22.
And the fixing bolts 28 for fixing the bracket to the under bracket 13 can be covered and hidden from the front of the vehicle body by the cover body 20.

In FIG. 7, reference numeral 29 attached to the lower side of the under bracket is a guide member for passing a brake hose (not shown) and a wire harness 30 (see FIG. 1).

The front fender 3 is formed so that its center in the vehicle width direction projects radially outward of the front wheels from both sides, and as shown in FIG. 32. The license plate 4 is attached to the front fender 3 on the front side of the vehicle body with respect to the front fork 2 via two brackets 33 and 34.

The brackets 33 and 34 are formed into an L-shaped cross section by bending a steel plate as shown in FIGS. 5 and 6, and a base 35 extending substantially horizontally on the lower side of the front fender 3 is formed. The license plate 4 is fixed to the front fender 3 by fixing bolts 36 and nuts 37 while being in contact with the upper surface, and the license plate 4 is screwed to a support plate 38 extending upward from the base 35.

The fixing bolt 36 is inserted through the through hole 3a of the front fender 3 from below, so that the bracket 3
3 and 34, and the base 3
A nut 37 is fastened to the tip protruding upward from 5. A washer 39 is interposed between the bolt head and the front fender 3.

As shown in FIG. 4, the bracket 33 for supporting the front side of the vehicle body of the license plate 4 has the base 35 positioned on the right side of the vehicle body from the center in the vehicle width direction and the support plate 38 positioned near the center in the vehicle width direction. The bracket 34 that supports the rear side of the vehicle body has the base 35 located on the left side of the vehicle body from the center in the vehicle width direction, and the support plate 38 is located near the center in the vehicle width direction. The center in the vehicle width direction is indicated by a chain line C in FIG. Further, the support plates 3 of these brackets 33, 34
Numerals 8 are located on the right side of the vehicle body from the center in the vehicle width direction, and the license plate 4 is mounted on the left side surface of the vehicle body. By attaching the brackets 33 and 34 to the front fender 3 in this manner, the license plate 4
At the center in the vehicle width direction.

An inner surface of a portion of the front fender 3 through which the bracket fixing bolt 36 penetrates (a portion where the through hole 3a is formed) is flat and flat by a mold (not shown) for molding the front fender 3. It is formed so that it becomes. This flat surface is indicated by reference numeral 40 in the figure. The flat surface 40 is formed so as to be parallel to the tangential direction of the outer surface of this portion, that is, to extend in the front-rear direction and the vehicle width direction of the vehicle body with the through hole 3a as a center. An outer edge (an ellipse drawn by a broken line in FIG. 4) of the formation area of the flat surface 40 is smoothly connected so that a step does not occur on the curved inner surface of the front fender 3. Since the front fender 3 is formed so that the thickness of the other parts other than the flat surface forming portion is substantially constant, the flat surface forming portion is thicker than the surroundings.

Therefore, the flat surface forming portion of the front fender 3 has higher rigidity than the other portions. Therefore, it is necessary to reinforce the portion where the license plate supporting brackets 33 and 34 are mounted without using any reinforcing parts. Can be. Further, the flat surface 40 is formed at two places on the front fender 3 on the front side of the vehicle body with respect to the front fork 2 so as to be spaced apart in the front-rear direction of the vehicle body and distributed to one and the other in the vehicle width direction. The license plate 4 is fixed by fixing bolts 36 passing through
Is attached to the center of the front fender 3 in the vehicle width direction, so that the fixing bolts 36 are disposed on one side and the other in the vehicle width direction with respect to the license plate 4, and the plate-shaped license plate 4 is attached to the vehicle. It can be attached to the front fender 3 in a stable state with support from both sides in the width direction.

In this embodiment, an example is shown in which the license plate 4 is mounted on the front fender 3. However, the components mounted on the front fender 3 are not limited to the license plate.

[0025]

As described above, according to the present invention, since the flat surface forming portion of the front fender is thicker than other portions and has higher rigidity, the flat surface can be formed without using a reinforcing part. The formation part can reinforce the front fender. Therefore, the component can be firmly attached to the front fender without using a component for reinforcement.

According to another invention in which a flat surface is formed at two front portions of the front fender and the license plate mounting bracket is mounted on the front fender, a bolt for supporting the front side of the license plate and a bolt for supporting the rear side of the license plate. Are arranged on one side and the other side in the vehicle width direction with respect to the license plate, so that the plate-shaped license plate can be attached to the front fender while being supported from both sides in the vehicle width direction. Therefore, the license plate can be securely and stably attached to the front fender.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle according to the present invention.

FIG. 2 is an enlarged side view showing an upper part of a front fork.

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

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

FIG. 5 is a sectional view taken along line VV in FIG. 3;

FIG. 6 is a sectional view taken along line VI-VI in FIG. 3;

FIG. 7 is an enlarged front view showing an under bracket cover of a front fork.

FIG. 8 is a sectional view showing a mounting structure of a cover for an under bracket of a front fork.

FIG. 9 is a perspective view showing an under bracket cover and a headlight stay of the front fork.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Motorcycle, 2 ... Front fork, 3 ... Front fender, 3a ... Through hole, 4 ... License plate,
33, 34 ... bracket, 36 ... fixing bolt, 40 ...
Flat surface.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroshi Fujii 2500 Shinkai, Iwata-shi, Shizuoka Prefecture Yamaha Motor Co., Ltd.

Claims (2)

[Claims] 1. A motorcycle provided with a synthetic resin front fender having a central portion in the vehicle width direction curved so as to protrude radially outward of the front wheel from both sides, wherein a center of the inner surface of the front fender in the vehicle width direction is provided. A motorcycle characterized in that a flat flat surface is formed in a portion so as to be parallel to a tangential direction of an outer surface of the portion. 2. The motorcycle according to claim 1, wherein a flat surface is provided at two locations on the front side of the front fender on the front side of the front fork with respect to the vehicle body, and an interval is provided in the front-rear direction of the vehicle body. It is formed so that it can be divided into one and the other in the vehicle width direction, and through holes for attaching parts are formed in these flat surface forming parts, and bolts respectively inserted into the through holes for attaching these parts are used. Motorcycle characterized in that a license plate mounting bracket is mounted at the center of the front fender in the vehicle width direction.