JPH04310488A - Flexible disc cover of motorcycle - Google Patents

Abstract

PURPOSE:To prevent mud from staying in the inner surface of the peripheral surface of a disc cover so as to prevent abrasion of a brake pad and a disc. CONSTITUTION:In a brake cover having a side portion 20 for covering the outside surface of a brake disc 2 and a peripheral surface portion 19 for covering the periphery of the brake disc 2 connected to the inside of the periphery of the side portion, a part of the lower portion of the peripheral surface portion 19 is notched to a mud discharge portion 26, and the mud is discharged downward from the mud discharge portion 26.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a brake disc cover for a motorcycle.

0003

2. Description of the Related Art A motorcycle, as shown in the side view in FIG. 7 and in the front view in FIG. There is one that applies brakes to the front wheels 1 by applying pressure. The position where the disc 2 is provided is easily hit by flying stones thrown up by the wheels, and mud is likely to adhere to the disc 2, so it is covered with a disc cover 4.

The conventional disc cover 4 is formed into a circular shape to match the shape of the disc 2, and a part of the disc cover 4 has a protector that follows the expansion and contraction of the front fork 5 along the guide of the front fork 5, as shown in FIG. A notch 8 is formed so that the lower end of the disk 7 joins, and a disk 2 is formed around the other part except for the notch 8, as shown in an enlarged cross section in FIG.
A peripheral surface portion 9 is formed with a length that extends inside the disk 2 so as to cover the outer periphery of the disk. As a result, stones 10 and mud 11 flying up from the ground bounce off the outer surface of the circumferential surface part 9 and are prevented from hitting the disk 2.

On the side surface 4a of the disc cover 4 at a position forward from the shaft 12, mesh-structured ventilation windows 13, 14, 15 are formed at the top, middle, and bottom, and small holes 16, 16 are formed at the rear position. is provided.

[0006]

However, since the inner surface 2a of the disk 2 is not covered, mud adheres thereto, and there is a gap between the outer circumference of the disk 2 and the inner surface of the circumferential surface 9 of the disk cover 4. As shown in FIG. There is a problem in that mud 11 gradually accumulates and is kicked up by the rotation of the disc 2, causing the mud to enter the brake pad and accelerate wear of the pad and disc 2.

[0007] The present invention provides a brake for a two-wheeled motor vehicle that automatically discharges mud during driving to prevent mud from accumulating on the inner surface of the circumferential surface of a disc cover to prevent wear of brake pads and discs. The purpose is to provide disc covers. [Structure of the invention]

[0008]

[Means for Solving the Problems] In order to achieve the above object, in the present invention, a part of the lower part of the circumferential surface part continuous to the inside of the periphery of the side surface covering the outer surface of the brake disc is cut. It is characterized in that it is missing to form a mud drainage section.

[0009]

[Operation] Stones and mud that hit from the front of the vehicle while driving are guarded by the side and peripheral parts of the disc cover, preventing them from directly hitting the disc. Mud that naturally accumulates on the inner surface of the circumferential surface during driving falls downward from the mud removal section formed at the lower portion of the circumferential surface of the disc cover, and is prevented from accumulating on the inner surface of the circumferential surface. This prevents the discs from kicking up mud and carrying it to the brake pads, preventing wear on the brake pads and discs.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a brake disc cover for a motorcycle according to the present invention will be described with reference to the accompanying drawings.

In explaining this embodiment, FIGS. 7 to 9 will be explained.
The same parts as those of the conventional two-wheeled motor vehicle shown in FIG. This invention is particularly suitable for off-road motorcycles, in which a front wheel is pivotally supported at the tip of a front fork 5, as shown in FIG. A brake disc 2 is provided. The brake disc 2 is brake-operated by a caliper 3, and the brake disc 2 is clamped by this brake operation, thereby applying braking to the front wheels.

The position where the brake disc 2 is installed is easily hit by flying stones thrown up by the wheels, and mud easily adheres to the brake disc 2, so the disc cover 17
covered with.

The disc cover 17 has an outer surface shaped to match the shape of the brake disc 2, and a notch 18 is formed in a part thereof so that the lower end of the protector 7 that guides the front fork 5 is joined. The notch 1
As shown in FIGS. 2 and 3, a sleeve-shaped peripheral surface part 19 is integrally formed with the disc side surface part 20 so as to cover the outer periphery of the brake disc 2, except for the part 8. Stones and mud that fly up from the surrounding area 1
It bounces off the outer surface of the brake disc 9 and prevents it from hitting the brake disc 2.

On the side surface 20 of the disk cover 17 at a position forward of the shaft 21, ventilation windows 22, 23, and 24 of a mesh structure are formed at the top, middle, and bottom, and a small hole 25 is arranged at the rear. It is set up as a hole.

On the other hand, the circumferential surface of the disk cover 17 is partially cut out from the lower part of the shaft 21 to the rear side as shown by the chain line in FIG. As shown in FIG. 4, the rear portion of the brake disc 2 is exposed. The circumferential surface 19 of the disc cover 17 that is continuous to the inside of the periphery other than the notch 26 is as shown in FIG.
As shown in the cross section, it has a length that extends inward beyond the extended surface of the brake disc 17, and the lower part behind this has a length that does not exceed the extended surface of the brake disc 2, as shown in FIG. 6, preferably. is cut out to have a length located outside the extended surface of the outer surface 2b of the brake disc 2,
This notch 26 is used as a mud removal section.

Therefore, the front side of the outer circumference of the brake disc 2 is completely covered by the circumferential surface 19 of the disc cover 17, so that flying stones and mud from the front are protected against the disc cover 1.
It is protected by the outer surface of the circumferential surface portion 19 of 7, and is prevented from directly hitting the brake disc 2. Mud that naturally falls and accumulates on the inner surface of the circumferential surface 19 during driving is removed by a mud removal section 2 formed at the lower part of the circumferential surface 19 of the disc cover 17.
6 and from being deposited on the inner surface of the peripheral surface part 19, the brake disc 2 is prevented from kicking up mud and reaching the brake pad, and wear of the brake pad and the brake disc 2 is prevented.

[0017]

[Effects of the Invention] As described above, according to the present invention, a mud removal section is provided by cutting out a part of the lower part of the peripheral surface of the disc cover that covers the brake disc, so that it is possible to drive through mud. This prevents mud from accumulating inside the disc cover, and prevents mud from clogging not only the brake pads but also other mechanical parts. In addition, by providing a notch in the disc cover to remove dirt, the weight of the disc cover is reduced, which reduces the weight of the vehicle.Furthermore, when molding this disc cover, it is possible to obtain the shape of the mud removal part. There is no need for post-processing, the cost is the same as conventional products, and even if a mud drainage section is provided, the design will not be compromised and the aesthetics will not be affected.

[Brief explanation of drawings]

FIG. 1: Automatic 2 equipped with a disc cover according to the present invention
The side view which shows the brake disc device of a wheeled vehicle.

FIG. 2 is a side view showing a disc cover for a motorcycle according to the present invention.

FIG. 3 is a plan view showing a disc cover for a motorcycle according to the present invention.

FIG. 4 is a bottom view showing the arrangement relationship between a disc cover and a brake disc of the motorcycle according to the present invention.

FIG. 5 is an enlarged sectional view taken along line A-A in FIG. 1;

FIG. 6 is an enlarged sectional view taken along line BB in FIG. 1;

FIG. 7 is a side view of a motorcycle to which the disc cover of the present invention is applied.

FIG. 8 is a front view of FIG. 7.

FIG. 9 is a side view showing how the disc cover is attached.

FIG. 10 is a partial cross-sectional view showing a conventional technique.

[Explanation of symbols]

2 Brake disc 3 Caliper 5 Front fork 17 Disc cover 18 Notch 19 Peripheral part 20 Disc part 26 Sludge drainage part (notch part)

Claims (1)

[Claims] 1. A brake disc cover having a side surface portion that covers the outer surface of the brake disc, and a circumferential surface portion that is connected to the inside of the side surface portion and covers the periphery of the disk, wherein the lower side of the circumferential surface portion is A brake disc cover for a two-wheeled motor vehicle, characterized in that a mud drainage part is formed by cutting out a part of the part.