JP3149704B2 - Headlight support structure for motorcycles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp support structure for supporting a headlamp on a front fork, and more particularly to a headlamp support for a motorcycle in which a headlamp support structure is made less noticeable in appearance. Regarding the structure.

[0002]

2. Description of the Related Art Conventionally, as a headlight support structure of this kind,
As shown in FIG. 9, a headlamp support frame 1 is provided on an upper bracket 102 and a lower bracket 103 for connecting left and right fork tubes 101 of a front fork of a motorcycle.
The headlamp 106 is fixed to a pair of left and right support stays 105 attached to the headlamp support frame 104.

The headlamp support frame 104 is provided so as to be hidden inside the left and right fork tubes 101 so as to be inconspicuous when viewed from the side, and the upper and lower ends thereof are provided with an upper bracket 102 and a lower bracket, respectively. 103
Are fixed by bolts 107 and 108.

[0004]

When the lower end of the headlamp support frame 104 is fixed to the lower bracket 103 with the bolts 108 as described above, it is located at the lower end of the headlamp support frame 104. Metal fittings for bolting 10
9 may interfere with the steering stopper 111 (stopper for restricting the amount of rotation of the front fork) provided on the forehead of the vehicle body frame. From the front of the lower bracket 103.

However, this causes the metal fitting 109 to protrude forward of the fork tube 101, impairing the appearance of the motorcycle, and welding the metal fitting 109 to the headlight support frame 104 as a separate part,
However, there is a problem that it is costly to form a screw hole for the lower bracket 103, and the number of bolts for fixing the headlamp support frame 104 to the front fork is large, making it difficult to assemble.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. The headlight supporting frame can be made inconspicuous in appearance, and can be easily assembled without any manufacturing cost. An object of the present invention is to provide a headlight support structure for a motorcycle.

[0007]

In order to achieve the above object, a headlight supporting structure for a motorcycle according to the present invention includes a headlight supporting structure provided on an upper bracket and a lower bracket for connecting left and right fork tubes of a front fork. A frame is provided, in a headlight support structure of a motorcycle in which a headlight is fixed to the headlight support frame, a lower end of the headlight support frame is a parallel portion parallel to the lower bracket, The parallel portion is fitted to a fitting recess formed on the upper surface of the lower bracket and extending in the vehicle width direction via an elastic member, and the depth of the fitting recess is adjusted by the parallel portion and the elastic portion in the fitted state. The depth was set so that the members did not protrude from the upper surface of the lower bracket.

[0008]

According to the headlamp supporting structure for a motorcycle having the above-described structure, the parallel portion, which is the lower end of the headlamp supporting frame, is inserted into the fitting recess formed on the upper surface of the lower bracket via an elastic member. Since the parallel portion does not protrude from the upper surface of the lower bracket when fitted, the lower end of the headlamp support frame does not interfere with the steering stopper provided on the front head of the vehicle body frame.

Therefore, the lower end of the headlamp support frame does not need to be provided with a shape avoiding the steering stopper, and the lower end of the headlamp support frame projects forward from the left and right fork tubes as in the prior art. And the headlamp support frame becomes less noticeable in appearance.

Further, since the lower end of the headlamp support frame can be fixed to the lower bracket without using bolts or the like, metal fittings for bolting or the like are conventionally provided at the lower end of the headlamp support frame. There is no need to weld as a separate part or to form a screw hole for bolting in the lower bracket, so that manufacturing costs are greatly reduced and assemblability is significantly improved.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a right side view showing a forehead of a motorcycle to which a headlight support structure according to the present invention is applied.

The motorcycle 1 has a body frame 2
A front fork 4 is rotatably connected to a head pipe 3 located at the front head of the vehicle. A front wheel 5 is pivotally supported at a lower end of the front fork 4. A steering bar 6, instruments 7, and a headlight 8 are integrally provided at the upper part of the front fork 4, and a fender 9 for covering the front wheel 5 is provided at an intermediate part of the front fork 4. Have been.

FIG. 2 is an enlarged right side view of the portion II in FIG. 1, FIG. 3 is a plan view taken along the line III-III in FIG. 2, and FIG. 4 is a longitudinal section taken along the line IV-IV in FIG. FIG.

The front fork 4 has a pair of left and right fork tubes 11 that can extend and retract and sandwich the front wheel 5.
Fixed by 13. A steering shaft 14 is provided between the upper bracket 12 and the lower bracket 13, and the steering shaft 14 is rotatably supported by the head pipe 3.

A tongue-like steering stopper 15 extending forward projects from the lower end of the head pipe 3, while a pair of stopper bosses 16 L, 16 R are formed on the upper surface of the lower bracket 13 with the steering shaft 14 interposed therebetween. When the front fork 4 rotates left and right about the steering shaft 14, the stopper bosses 16 </ b> L and 16 </ b> R come into contact with the steering stopper 15 so that the amount of rotation of the front fork 4 is restricted. .

Next, a headlight supporting structure according to the present invention will be described. The headlight 8 is provided on the front fork 4 via a headlight support frame 18. The headlight supporting frame 18 is provided so as to be surrounded by left and right fork tubes 11 of the front fork 4 and upper and lower upper brackets 12 and lower brackets 13.

FIGS. 5 to 7 are a plan view, a front view, and a left side view of the headlamp support frame 18, respectively. The headlight supporting frame 18 is formed by bending a round bar,
It has a frame body 19 formed in the shape of a letter, and a pair of left and right upper fastening pieces 20 extending inwardly at the uppermost part of the frame body 19.
L and 20R are fixed, and a pair of left and right support stay pedestals 21L and 21R are also fixed below and extend forward.

The lower end of the frame body 19 is formed as a parallel portion 22 parallel to the lower bracket 13 of the front fork 4 and extends horizontally. The central portion in the width direction is made of an elastic material such as rubber. A cylindrical elastic member 23 having flanges 23a formed at both ends is annularly mounted.

On the support stay pedestals 21L and 21R, support stays 24L and 24R are fixed by rivets 25 and the like, and a headlight 8 is inserted into a hole 26 formed at the tip of each of the support stays 24L and 24R. It is fixed with screws 27 (see FIG. 1). Note that, for example, a rotation control stay 28 is provided below the right support stay 24R, and an arm (not shown) extending from the headlight 8 is connected to the rotation control stay 28, and the screw 27 is The rotation of the headlight 8 is restricted, and the optical axis of the headlight 8 can be adjusted.

On the other hand, the upper bracket 12 of the front fork 4 is provided with a pair of left and right fixed arms 30 extending downward as shown in FIG. The upper fastening piece of the frame 18
20L and 20R are applied from below and fixed by bolts 31 and nuts 32, whereby the upper part of the headlight supporting frame 18 is fixed to the upper bracket 12. Since the bolt 31 is inserted into the fixed arm 30 via the spacer 33 and the rubber bush 34, the headlight supporting frame
The upper part of 18 is floatingly fixed to the upper bracket 12.

An extension 35 extending forward is integrally provided at the center of the lower bracket 13 in the vehicle width direction. A fitting recess extending in the vehicle width direction is provided on the upper surface of the extension 35.
36 are formed. The lower end portion of the headlight supporting frame 18, that is, the parallel portion of the frame
22 is fitted through the elastic member 23 (see FIGS. 3 and 4).

Therefore, the lower part of the headlight supporting frame 18 is also fixed to the lower bracket 13 in a floating manner. Here, as shown in FIGS. 2 and 4, the depth H of the fitting recess 36 is set to a depth at which the parallel portion 22 and the elastic member 23 in the fitted state do not protrude from the upper surface of the lower bracket 13. ing.

When the headlight supporting frame 18 is mounted on the front fork 4, the elastic member 23 of the parallel portion 22 is first fitted into the fitting recess 36 of the lower bracket 13, and then the upper fastening pieces 20L and 20R are respectively attached to the upper bracket. It is fixed to 12 fixing arms 30 with bolts 31 and nuts 32. When the upper fastening pieces 20L and 20R are fixed to the fixed arm 30, the parallel portion 22 which is the lower end portion of the headlight supporting frame 18 is pressed toward the fitting concave portion 36 via the elastic member 23, so that the parallel The part 22 does not come off the fitting recess 36.

The parallel portion 22 of the headlamp support frame 18 fitted in the fitting recess 36 does not protrude from the upper surface of the lower bracket 13 due to the depth H of the fitting recess 36, and Does not interfere. Therefore, the lower end of the headlamp support frame 18 does not need to be provided with a shape that avoids the steering stopper 15. As a result, the lower end portion of the headlamp support frame 18 does not protrude forward from the left and right fork tubes 11, and the headlamp support frame 18 becomes inconspicuous in appearance.

Further, since the lower end of the headlight support frame 18 can be fixed to the lower bracket 13 without using bolts or the like, a metal fitting for bolting is provided on the lower end of the headlight support frame as in the prior art. There is no need to weld these parts as separate parts or to form screw holes for bolting in the lower bracket 13, so that the manufacturing cost is greatly reduced and the assemblability is significantly improved.

FIG. 8 shows the headlight supporting frame 18.
8 shows another embodiment of a portion for fixing the upper and lower portions of the upper bracket to the upper bracket 12 and the lower bracket 13. In this embodiment, a projection 39 is formed on the lower surface of the distal end of a pair of left and right fixed arms 38 extending downward from the upper bracket 12, while the frame main body of the headlamp support frame 18 is formed.
A rubber bush 40 is fitted to the upper end of the headlamp 19, and a through hole 41 provided in the rubber bush 40 is fitted to the projection 39 of the fixed arm 38 so that the upper part of the headlamp support frame 18 floats with respect to the upper bracket 12. Fixed.

On the other hand, the fitting recess 42 of the lower bracket 13 is formed not in a groove shape but in a stepped shape.
At the time when another component 44 (a brake hose guide or the like) is fixed to the front portion with a bolt 43, the fitting concave portion 42 has a groove shape.

When mounting the headlamp support frame 18, first, the rubber bush 40 on the headlamp support frame 18 is first fitted into the projection 39 of the fixed arm 38, and then the parallel part of the headlamp support frame 18 The elastic member 23 provided on the fitting 22 is fitted into the fitting recess 42, and finally, another component 44 is fixed to the lower bracket 13 with the bolt 43 to complete the mounting of the headlight supporting frame 18.

This eliminates the need for the components such as the bolt 31, the nut 32, and the spacer 33 shown in FIG. 2, so that the cost can be reduced and the assemblability can be further improved.

In addition to this, a structure in which the upper and lower portions of the headlamp support frame 18 are fixed to the front fork 4 is conceivable.
Must not be projected from the upper surface of the lower bracket 13.

[0031]

As described above, the headlamp support structure for a motorcycle according to the present invention has a headlamp support frame provided on an upper bracket and a lower bracket for connecting left and right fork tubes of a front fork. In the headlamp support structure for a motorcycle in which the headlamp is fixed to the headlamp support frame, a lower end of the headlamp support frame is a parallel part parallel to the lower bracket, and the parallel part is a lower part. The fitting recess formed on the upper surface of the bracket and extending in the vehicle width direction is fitted through an elastic member, and the depth of the fitting recess is adjusted by the parallel portion and the elastic member in the fitted state of the lower bracket. The depth is set so as not to protrude from the upper surface.

In this case, when the parallel portion, which is the lower end portion of the headlamp support frame, is fitted into a fitting recess formed on the upper surface of the lower bracket via an elastic member, the parallel portion becomes parallel. Since the portion does not protrude from the upper surface of the lower bracket, the lower end of the headlamp support frame does not interfere with the steering stopper provided on the front head of the vehicle body frame.

Therefore, it is not necessary to provide the lower end of the headlight support frame with a shape avoiding the steering stopper, and the lower end of the headlight support frame projects forward from the left and right fork tubes as in the conventional case. And the headlamp support frame becomes less noticeable in appearance.

Further, since the lower end of the headlamp support frame can be fixed to the lower bracket without using bolts or the like, a metal fitting for bolting or the like is provided on the lower end of the headlamp support frame as in the related art. There is no need to weld as a separate part or to form a screw hole for bolting in the lower bracket, so that manufacturing costs are greatly reduced and assemblability is significantly improved.

[Brief description of the drawings]

FIG. 1 is a right side view showing a forehead of a motorcycle to which a headlight supporting structure according to the present invention is applied.

FIG. 2 is a right side view showing an embodiment of the present invention and is an enlarged view of a portion II in FIG. 1;

FIG. 3 is a plan view taken along the line III-III in FIG. 2;

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

FIG. 5 is a plan view of a headlight supporting frame.

FIG. 6 is a front view of a headlight supporting frame.

FIG. 7 is a left side view of the headlight supporting frame.

FIG. 8 is a longitudinal sectional view showing another embodiment of a portion for fixing the upper and lower portions of the headlight supporting frame to the upper bracket and the lower bracket.

FIG. 9 is a right side view showing a conventional headlamp support structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motorcycle 2 Body frame 3 Head pipe 4 Front fork 8 Headlight 11 Fork tube 12 Upper bracket 13 Lower bracket 14 Steering shaft 15 Steering stopper 16L, 16R Stopper boss 18 Headlight support frame 22 Parallel part 23 Elastic member 36 Fitting Recess H Depth of fitting recess

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62J 6/02

Claims (1)

(57) [Claims] 1. A motorcycle headlight having a headlamp support frame provided on an upper bracket and a lower bracket for connecting left and right fork tubes of a front fork, and a headlamp fixed to the headlamp support frame. In the support structure, the lower end portion of the headlight support frame is a parallel portion parallel to the lower bracket, and the parallel portion is formed on an upper surface of the lower bracket through a fitting recess extending in the vehicle width direction via an elastic member. A headlight for a motorcycle, wherein the fitting recess is set to a depth such that the parallel portion and the elastic member in the fitted state do not protrude from the upper surface of the lower bracket. Support structure.