JPH031357Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for holding a front brake hose extending from a master cylinder on a bar handle of a motorcycle to a front wheel brake in a predetermined routing.

[Conventional technology]

Hydraulic brakes are widely used as front wheel brakes for motorcycles, and in that case,
A brake hose for hydraulic pressure transmission is stretched between the master cylinder fixed on the bar handle (usually on the right side) and the front wheel brake, such as a disc brake.

The master cylinder is usually manually operated by an operating lever provided on the right side of the bar handle.

As the front wheel brake, a disc brake or an internally expanding drum brake is used.

Generally, the hydraulic hose extends from a master cylinder fixed to the right side of the bar handle, along the bar handle to the center thereof, and then curves greatly inside the headlamp cover to reach the left side of the vehicle body, and extends approximately to the left front of the vehicle. It descends along the fork, reaches the center of the front wheel, and is routed so that it is connected to the front wheel brake.

In such hydraulic front brakes for motorcycles, the hydraulic hose is routed (stretched) with a certain amount of extra length in order to absorb the expansion and contraction of the front fork.

In addition, the front brake hose is appropriately guided at several points along the way to prevent the front brake hose from deviating from a predetermined path.

In particular, at the center of the bar handle, where the direction of the front brake hose changes significantly and where it is pushed up with each cushion stroke of the front fork, it is required to guide it in an appropriate position.

On the other hand, a bar handle has a structure that is bent upward from the center part fixed by a handle holder to grip parts on both sides, and has a nearly horizontal reinforcing stay (usually a pipe) fixed by welding etc. across the center part. is used.

[The problem that the idea aims to solve]

By the way, in this type of front brake hose support device for a motorcycle, the hose guide at the center of the handle includes a mounting part that elastically holds the bar handle (usually the reinforcing stay) and a guide part through which the hose is inserted. A clamp member having the following was used. The clamping member is generally made of molded plastic.

However, in the conventional front brake hose support device, the clamp member is attached to the pipe portion of uniform cross section only by the frictional holding force due to its elastic clamping force, so when the front fork cushions There was a possibility that the clamp member would move along the handle toward the master cylinder (generally to the right of the vehicle body) due to the pushing up, and the position of the hose guide would shift.

If the hose guide was misaligned, there was a possibility that the front brake hose would turn around to the outer surface of the headlamp cover and come into contact with the headlamp cover when the front fork was engaged.

[Purpose of invention]

The purpose of the present invention is to solve the problems of the prior art, to guide the front brake hose with a simple structure, and to prevent the front brake hose from moving or coming into contact with other parts due to the action of the cushion, etc. It is an object of the present invention to provide a front brake hose support device for a motorcycle that can prevent the front brake hose from sagging.

[Means to achieve the purpose]

This invention applies to a motorcycle in which the front wheel brake is operated via the front brake hose by a master cylinder fixed to the bar handle.
The front brake hose is guided by a clamp member that has a mounting part that elastically clamps the bar handle and a guide part through which the hose is inserted, and the bar handle is provided with a protrusion or a recess that prevents movement of the clamp member. This achieves the above objective.

〔Example〕

The present invention will be explained in detail below with reference to the drawings.

FIG. 9 shows the main parts of a motorcycle suitable for carrying out the front brake hose support mounting according to the present invention.

In FIG. 9, an upper bracket 2 and an under bracket 3 are pivotally supported on a steering shaft (not shown) provided at the front of a vehicle body frame 1, and left and right front forks 4A, 4B is installed. Each of the front forks 4A, 4B is a telescopic damper that can extend and retract (cushion), and a front wheel 5 is pivotally supported at the lower end thereof.

Further, a bar handle 6 is fixed to the upper bracket 2, and a front fender 7 is fixed to the under bracket 3.

Further, the upper bracket 2 and the under bracket 3 include a headlamp 8, instruments such as a speedometer and a tachometer (not shown),
A headlamp cover 9 and the like for protecting these are attached directly or via a support member.

A master cylinder 11 operated by a brake lever 10 is fixed to the right side of the bar handle 6, and a hydraulic brake 12 is attached to the front wheel 5.
is provided. As the front wheel brake 12, in addition to a disc brake consisting of a brake disk 13 and a hydraulically operated caliper 14, an inwardly expanding drum brake consisting of a brake panel and a brake drum (not shown), etc. are employed.

The master cylinder 11 and the front wheel brake 12 are connected by a hydraulic pressure transmission hose (front brake hose) 15.

The brake hose 15 extends from the master cylinder 11 fixed to the right side of the bar handle 6 along the bar handle 6 to approximately the center thereof, curves inside the headlamp cover 9, and changes its direction significantly downward. Front wheel brake 12 on the left side of the vehicle, roughly along the left front fork 4A
The hydraulically operated caliper 14
It is routed so that it is connected to.

FIG. 1 shows the main parts of a front brake hose support device according to an embodiment of the present invention.

In FIG. 1, the bar handle 6 extends from the central parallel portion 16 to the upper grip portions 17A and 17B on both sides.
A handle body formed by bending a pipe, and a reinforcing stay 18 extending substantially parallel to the central parallel portion 16 and having both ends fixed to the handle body by welding or the like.
It is made up of. This reinforcing stay 18 is also usually formed from a pipe.

The bar handle 6 is fixed to the upper bracket 2 at its central parallel portion 16 by handle holders 19, 19.

The brake lever 10 and the master cylinder 11 are mounted on the right side of the bar handle 6, and the front brake hose 15 extends from the master cylinder 11.

For example, a clutch lever 20 is attached to the left side of the bar handle 6, and is adapted to operate the clutch of the engine on and off via a clutch cable 21.

A clamp member 22 for guiding and holding the front brake hose 15 is attached to the reinforcing stay 18 of the bar handle 6.

FIG. 2 is a partially enlarged view showing how the clamp member 22 is attached.

As shown in FIGS. 1 and 2, the clamp member 22 is attached to the reinforcing stay 18 of the bar handle 6.
It is an integrally molded part comprising a mounting part 23 that elastically holds the front brake hose 15 and an annular guide part 24 through which the front brake hose 15 is inserted. ing.

The attachment portion 23 of the clamp member 22 is, for example, smaller than the cross-sectional shape of the attachment portion (in the illustrated example, the reinforcing stay 18), and has an elastic force based on elastic deformation when expanded and fitted to the attachment portion. Due to the clamping force generated in this process, the part to be mounted is pressed and attached to the part to be mounted.

A portion of the reinforcing stay 18 on which the clamp member 22 is mounted is provided with convex portions 25, 25 for positioning the clamp member 22.

These convex portions 25, 25 are located at the front fork 4.
The movement of the clamp member 22 when the hose 15 is pushed up by the cushioning action of A and 4B, that is, the movement of the master cylinder 11 of the clamp member 22.
This is to prevent the clamp member 22 from moving in the direction of the master cylinder 11, and is formed of an ear-shaped protrusion that is fixed by welding or adhesive so as to come into contact with the end surface of the clamp member 22 on the master cylinder 11 side.

As described above, according to the embodiment described in FIGS. 1 and 2, the clamp member 22 having the mounting part 23 that clamps the bar handle 6 with elastic force and the guide part 24 through which the hose 15 is inserted is used. Since the protrusions 25, 25 are provided on the bar handle 6 to guide the front brake hose 15 and to prevent the clamp member 22 from moving, the front brake hose 15 is pushed up by the cushioning action and the clamp member 22 is not moved. It is now possible to hold the clamp member 22 in a predetermined position even if a force is applied to move it toward the right side of the vehicle body.

Therefore, when the clamp member 22 moves to the right side of the vehicle body and the cushion operates as in the conventional case, the front brake hose 15 wraps around the front side of the headlamp cover 9 as shown by the two-dot chain line 15A in FIG. It is possible to prevent a problem in which the hose comes into contact with the headlamp cover 9 and the hose route is deviated.

FIGS. 3 to 8 respectively show a convex portion or a concave portion on the bar handle 6 (FIG. 1) according to the present invention to prevent the movement of the clamp member 22, that is, the ear-shaped convex portions 25, 25 in the above embodiment. Various alternative clamp member 22 positioning means are shown.

FIG. 3 shows an example in which a wire 26 is wound approximately once around the outer circumference of a pipe (reinforcement stay) 18 and fixed by welding or the like, and a convex portion formed by the wire 26 constitutes positioning means for the clamp member 22. shows.

In FIG. 4, an annular projection 27 as shown in the figure is formed on the pipe (reinforcement stay) 18 itself, and this projection 27
An example will be shown in which the positioning means for the clamp member 22 is configured by a convex portion formed in FIG.

FIG. 5 shows that the clamp member 2 is attached to the pipe 18 itself.
2 is molded into an annular recess 28 into which it is fitted with elastic force,
An example in which the recess 28 constitutes positioning means for the clamp member 22 will be shown.

FIG. 6 shows an example in which the surface of the pipe 18 itself is knurled, the raised striations form a convex portion, and the convex portion constitutes a positioning means for the clamp member 22.

In FIG. 7, a diametrical through hole (split pin hole) 30 is formed in the pipe 18, and a split pin 31 is inserted and fixed therein as shown to form a convex portion, and the convex portion is used to form a clamp member. An example of configuring No. 22 positioning means is shown.

In FIG. 8, a diametrical through hole (rivet hole) 32 is formed in the pipe 18, a rivet 33 is inserted into the hole, the ends are caulked as shown in the figure, and convex portions are formed at both ends. An example of configuring the positioning means for the clamp member 22 will be shown.

In each of the embodiments described above with reference to FIGS. 3 to 8, it is possible to form a convex portion or a concave portion for positioning the clamp member 22 at a predetermined position of the bar handle 16. As in the case of the embodiment shown in FIG. 2 and FIG.
It is possible to eliminate the possibility that the lamp will come into contact with the headlamp cover 9 or that the routing will be misaligned. The present invention can also be applied to four-wheeled motor vehicles.

[Effect of idea]

As is clear from the above description, according to the present invention, the front brake of a motorcycle can prevent the front brake hose routing, that is, the path from the master cylinder to the front wheel brake, from shifting due to external disturbances, etc., with a simple configuration. A hose support device is provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the main structure of a front brake hose support device for a motorcycle according to an embodiment of the present invention, FIG. 2 is a partial perspective view showing the clamp member positioning means of the portion in FIG. 1, 3 to 8 are cross-sectional views showing various structural examples of the clamp portion positioning means of the front brake hose support device according to other embodiments of the present invention, and FIG. 9 shows the front brake hose support device according to the present invention. FIG. 2 is a perspective view showing the main parts of a motorcycle suitable for implementing the present invention. 6... Bar handle, 11... Master cylinder, 12... Front wheel brake, 15... Front brake hose, 18... Bar handle reinforcement stay, 22... Clamp member, 23... Mounting part (clamp member) , 24... Guide part (clamp member), 25, 26, 27, 29, 31, 33...
Convex portion (clamp member positioning means), 28... recessed portion (clamp member positioning means).

Claims (1)

[Scope of utility model registration request] In a motorcycle in which the front wheel brake is actuated via a front brake hose by a master cylinder fixed to the bar handle, a clamp member having a mounting part that clamps the bar handle with elastic force and a guide part through which the hose is inserted is used. A front brake hose support device, characterized in that the bar handle is provided with a convex portion or a concave portion that guides the front brake hose and prevents movement of the clamp member.