JPH0585459A - Handle device for motorcycle - Google Patents

Abstract

PURPOSE:To provide a handle device of a motorcycle capable of ensuring a gap between a handle turned largely and a rear side fuel tank and turning the handle with a large angle to make the turning radius small. CONSTITUTION:The inner ends of left and right handle bars 6 are provided with gears 8 respectively and connected pivotably to the upper ends of left and right fork tubes 5 of a front fork 1 respectively. The gear 8 meshes with a gear 12 fixed to the outside of a head pipe 3 on the front end of a frame pivotably supporting a steering shaft 2 of a front fork 1 through an idle gear 11 pivotably supported with an upper bracket 4 of the front fork 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle device for a motorcycle.

[0002]

2. Description of the Related Art As shown in FIG. 3, a motorcycle has a steering shaft at the center of a bracket B connecting left and right hawk tubes A and a head pipe C at the front end of the frame.
Axle rotatably supporting the front wheel is rotatably attached to the lower ends of the left and right hawk tubes A. And left and right Hawk tube A or bracket B
A handlebar D protruding leftward and rightward is attached to the steering wheel D, and the left and right hawk tubes A are rotated around the steering shaft by the handlebar D to operate the traveling direction of the front wheels.

[0003]

When the handlebar D is operated to turn the handlebar, the fuel tank F is attached to the front upper part of the frame E when the handlebar D is turned to a large angle and the rear side of the handlebar D is attached. The side to be rotated approaches the fuel tank F, so that the hand holding the handlebar D is caught in the fuel tank F. For this reason, the cutting angle of the handlebar D may be limited, and there is a disadvantage that the turning radius becomes large.

In view of the above point, the present invention provides a handle device for a motorcycle, which can secure a gap with a fuel tank on the rear side when the handle is greatly turned, can increase the handle turning angle, and can reduce the turning radius. Aim to get.

[0005]

In order to achieve the above object, the handle device for a motorcycle according to the present invention is provided with gears at the inner ends of the left and right handlebars, and the inner ends of the left and right hawk tubes of the front fork are provided. It was rotatably attached to the upper end, and was meshed with a gear fixed to the outside of the head pipe at the front end of the frame that attaches the front hawk's steering shaft via an idle gear attached to the upper bracket of the front hawk. It is in.

[0006]

The gears at the inner ends of the left and right handlebars mesh with the gears fixed to the head pipe through the idle gears, so when turning the front forks to turn the handlebars,
The front hawk rotates about the steering shaft, while the left and right handlebars move substantially parallel to the front and rear. Therefore, the handlebar can be less likely to approach the fuel tank on the rear side, and the hand holding the handlebar can be prevented from being caught in the fuel tank. Therefore, it is possible to increase the turning angle of the handle and reduce the turning radius.

[0007]

Embodiments of the present invention will be described below with reference to FIGS. The steering shaft 2 of the front hawk 1
A head pipe 3 at the front end of the frame is rotatably attached to a shaft, and an upper bracket 4 and an under bracket are vertically connected. The left and right hawk tubes 5 are connected to the upper bracket 4 and the under bracket. The left and right hawk tubes 5 of the front hawk 1 are connected so that the lower tubes can be expanded and contracted to be cushioned, and the lower ends of the left and right lower tubes are fastened to both ends of the axle on which the front wheels are rotatably supported. It is like this.

The inner ends of the left and right handlebars 6 are rotatably attached to the upper ends of the left and right hawk tubes 5 by bearings 7. Gears 8 are attached and fixed to the outer circumferences of the inner ends of the left and right handlebars 6. On both sides of the upper bracket 4,
An idle gear 11 in which a support shaft 9 is rotatably supported by a bearing 10 is provided and meshes with the gear 8. Further, the gear 12 is fixed to the outer periphery of the head pipe 3 at the front end of the frame and meshes with the idle gear 11. In this way, the gear 8 of the handlebar 6 meshes with the gear 12 of the head pipe 3 via the idle gear 11.

When the mounting angle of the handlebar 6 is θ with respect to the vehicle body centerline X and the gears 12 and 8 have the same number of teeth, the mounting angle θ is constant with respect to the vehicle body centerline X. If you move the bar 6 back and forth, the front hawk 1
Can be rotated left and right around the steering shaft 2, and the front wheels can be steered. Further, by increasing or decreasing the number of teeth of the gear 12 to be greater than or less than the number of teeth of the gear 8, the mounting angle θ during steering can be increased or decreased.

A fuel tank 13 is attached to the rear side of the head pipe 3 of the frame, and the left and right handlebars 6 are provided.
However, the front fork 1 can be steered by moving in a form parallel to the vehicle body center line X or in a form close to that without turning the steering shaft 2, and when the steering wheel is turned, the handle bar It is possible to prevent 6 from rotating and approaching to the fuel tank side, to prevent a hand from being pinched, and to set a large steering wheel turning angle.

[0011]

As described above, since the present invention is configured as described above, the front fork can be steered by moving the handle bar in the front-rear direction or by moving the handle bar at an angle close to the front-rear direction. It is possible to prevent the bar from approaching the fuel tank on the rear side when the steering wheel is turned, as compared with the bar that rotates around the steering shaft. For this reason, the angle at which the handlebar is turned can be increased without the hand holding the handlebar being caught in the fuel tank.
The radius of gyration can be small and good for small turns.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional plan view showing an embodiment of the present invention.

FIG. 2 is a perspective view in which a main part of the embodiment of the present invention is cut away.

FIG. 3 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Front Hawk 2 Steering Shaft 3 Head Pipe 4 Upper Bracket 5 Hawk Tube 6 Handlebar 8 Gear 11 Idle Gear 12 Gear

Claims (1)

[Claims] 1. A gear is provided at the inner ends of the left and right handlebars, the inner ends of which are rotatably pivoted to the upper ends of the left and right hawk tubes of the front hawk, and the idle gear which is pivotally attached to the upper bracket of the front hawk. A handle device for a motorcycle characterized in that a steering shaft of a front hawk is meshed with a gear fixed to the outside of a head pipe at the front end of a frame through which a steering shaft of the front hawk is mounted.