JPS59128078A - Cover device for disk brake gear in motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cover device used for a disc brake device of a motorcycle.

A disc brake type brake system is used as a brake system for motorcycles, and this type of brake system consists of a brake disc attached to the wheel side and a brake caliper mounted and supported on the vehicle body side.

By the way, in disc brake equipment, the brake disc,
The brake caliper is exposed, and depending on driving conditions such as off-road driving, there is a risk that the brake disc and brake caliper may be covered with mud, water, dust, etc. from own troops or other vehicles.

Therefore, in order to avoid the above, it may be considered to cover the brake disc and brake caliper with a cover, but this has disadvantages such as a decrease in heat dissipation of the brake and an increase in unsprung weight.

The present invention has been made in view of the above.

The object of the present invention is to provide a brake disc for a two-wheeled motor vehicle, which effectively protects the brake disc and brake caliper of a disc brake device from muddy water, etc. depending on the driving conditions, and improves the service life and durability of these discs. Brake equipment cover equipment is in full service.

In order to achieve the above object, the present invention provides a removable cover on the front fork that covers at least one side of the brake disc and at least the main part of the brake caliper, so that it can be used to cover the brake disc and brake caliper when necessary. The gist of this article is that it is important to know the basics.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view of a motorcycle 1. The motorcycle 1 supports a front fork 4 that supports a front wheel 5 through a head tube 3 at the front end of a frame 2 so as to be freely steerable. . . . A steering wheel 7 is provided. A fuel tank 8f is mounted on the front part of the frame 2, an engine 9 is mounted on the lower front part, and a seat 1 is mounted behind the fuel tank 8.
0, a rear fork 11 on which a rear wheel 12 is mounted is pivoted and extends from the lower front rear part of the frame 2, and a barrier cushion unit 13 is provided between the rear fork 11 and the frame.
is interposed. In the figure, numeral 14 indicates the rear wheel and driving chain, and numeral 15 indicates the subrocket.

The axle 51 of the front wheel 5 is supported at its end by a boss portion 42 provided at the lower front part of the bottom case 41 of the front fork 4, and is fixed to the brake disc 16 on at least one side of the bottom case 41 of the front fork 4. Specifically, it is connected to a boss portion 53 provided on the hub 52 via bolts 54 .

On the other hand, a boss part 43 is provided at the lower rear part of the bottom case 41 on the opposite side to the boss part 42, and the boss part 171 of the brake caliper 17 is connected to the boss part 43, and the caliper 17 is connected to the boss part 171 of the brake caliper 17.
As is known, a brake pad 7 is installed therein to compress a part of the disc 16 during braking using hydraulic pressure, and the caliper 17 is connected to the master cylinder through a hydraulic pipe 172.

At the lower front part of the bottom case 41, cover mounting bosses 44 are protruded above and below the axle boss 42.

The cover is shown in an exploded perspective view in FIG. 4, and consists of a disc cover 18 and a caliper cover 19.

The disk cover 18 includes a disk 16J having a raised piece 181 on the peripheral edge, a disk portion 182 with a larger diameter, and an extension portion 18 on the upper portion that covers the front portion of the lower intermediate portion of the bottom case 41.
Furthermore, the middle part is provided with a notch part 184 cut out to the width of the lower part of the bottom case 41, and the front part 186 facing the middle part of the notch part 184 is provided with a bulging part 185 that covers the boss part 42. In order to avoid interference with the caliper 17, only the lower half of the rear part 187 bordering on the notch 184 is provided, and mounting holes 188 and 188 are provided above and below the bulging part 185, and a part of the front part 186 is provided with a plate. A slit 189 that penetrates in the thickness direction.
... is provided.

The caliper cover 19 includes a cover part 191 that covers the lower outer side of the bottom case 41, and a cover part 192 that extends rearward from the middle rear part of the cover and covers the outer surface, upper and lower edges, and rear edge of the caliper. The front edge of the bottom case cover part 191 is provided with mounting pieces 193 and 193 that form upper and lower mounting boss parts, and mounting holes 194 are provided in the plate thickness direction in this part, and the edges between the mounting pieces 193 and 193 are provided. The part has the bulge part 185.
A cutout 195 is provided into which the end of the cutout fits.

In the above cases, the cover 18.19'e is usually not attached.
The vehicle travels with the disc 16 and caliper 17 exposed to the outside.

If there is a risk that muddy water, dust, etc. may come into contact with the disc 16 and caliper 17 during off-road driving, the disc cover 18 should be placed facing the outside of the bottom case 41, and the bulging portion 185 should be placed outside the axle boss portion 42. and the notch 184
Insert the lower part of the bottom case 41 between the upper and lower mounting holes 1.
88 and 188 with the cover mounting boss portions 44 and 44 of the bottom case 41.

Then, place the caliper cover 19 on the outside of the lower part of the bottom case 41, and attach the mounting piece 193.193'e boss part 44°44.
facing the outside of the mounting hole 194.194 and the boss portion 44.
44, pass bolts, nuts, etc. through the mounting holes 194.45 and 188, and attach the caliper cover 19 and disc cover 18 to the bottom case 41.
The caliper cover portion 192 faces the outside of the caliper 17.

Thus, the outer surface and periphery of the brake disc 16 opposite to the knob mounting portion, the outer surface and periphery of the caliper 17 are covered with the cover 18, 19, and the lower part of the bottom case 41 is covered.

In the above, the outer surfaces and peripheral edges of the disc 16 and the caliper 17 without wheels are covered with covers 18 and 19, and muddy water and
This prevents dust, etc. from getting on the disc 16 and caliper 17, and on the other hand, since the inner surfaces of the disc 16 and caliper 17 face the knobs and wheels, it prevents muddy water, dust, etc. from getting on the disc, caliper, and pas. This can be prevented as much as possible.

5 and 6 show modified embodiments.

The cover is composed of an inner/outer double structure in the vehicle width direction, and the outer cover 60 includes a disk portion 61 to cover the disk 16 and caliper 17, and a portion in the center that wraps around the lower outer side of the point case 41. 62, a part of which extends 63 above the disk portion 61, and a bulge portion 6 that covers the outside of the axle boss portion 42 is provided at the front edge of the bottom booth cover portion 62.
4, and mounting portions 65 and 65 are provided above and below this,
The mounting portion 65.65 is provided with a tapping hole 66 penetrating in the plate thickness direction, and the disk portion 61 is provided with a plurality of slits 67.
・ is provided. The above cover -60 is the mounting part 65
．． 65 to the boss part 44.44, connect with bolts etc., and attach the lower part of the bottom case of the front fork, the disc,
A raised piece 6 is provided on the periphery of the disc portion 61 to cover the outside of the caliper.
8 are provided and face the outer periphery of the disc 16 at a distance, and also face the outer periphery of the caliper 17.

The inner cover 70 has a knob through hole 72 in the center of the disc part 71, and mounting holes 73 are provided around the hole 72 to attach the disc part 71.Bolts 54 are installed on the inside of the disc part 71 in common with the disc 16. ... is attached to the hub 52 side, the disk portion 71 is provided with a plurality of radial slits 74, the slits 74... are provided with wind introduction fins 75, and the circumference of the disk portion 71 is provided with fins 75 for introducing wind. The entire raised piece 76 covers the disk 16 and the caliper, and the raised piece 76 is the raised piece 6 of the outer cover 60.
In the embodiment, the inside of the 8 is facing.

In the above, the inner and outer surfaces and outer peripheries of the disc 16 and the caliper 17 are completely covered with covers 60 and 70 to protect the disc 16 and the caliper 17 from mud, water, dust, and the like. Since the cover 70 is on the wheel side, it rotates, and by the action of the fins 75 and slits 74, the running wind is taken into the space surrounded by the cover 70.60 for cooling during braking. The slit 67 of the cover 60 is also discharged.

Remove the cover when it is not needed.

As is clear from the above (brake discs and brake calipers are covered with covers that can be attached and removed depending on the driving conditions, so the discs and calipers are protected during off-road driving, etc., and their lifespan and durability are improved. In addition, it has many advantages such as being able to remove the cover when driving on-road, thereby completely reducing the unsprung weight.

[Brief explanation of drawings]

Figure 1 is a side view of the motorcycle, Figure 2 is an enlarged side view of a portion of the brake cover, Figure 3 is a cross-sectional view taken along line 3-3 in Figure 2, Figure 4 is an exploded perspective view of the cover, and Figure 5 is an enlarged side view of a part of the brake cover. FIG. 6, an exploded perspective view of the cover of the modified embodiment, is a view similar to FIG. 3 of the modified embodiment. In the drawings, 1 is a motorcycle, 4 is a front fork on the vehicle body side, 5 is a wheel, 16 is a brake disc, 17 is a brake caliper, and 18 and 19 are covers.

Claims (1)

[Claims] In a motorcycle disc brake device consisting of a brake disc provided on the wheel side and a brake caliper provided on the vehicle body side that compresses the brake disc during braking, at least one side of the brake disc and a small part of the main part of the brake caliper are used. 1. A cover device for a disc brake device in a motorcycle, characterized in that a cover covering the disc brake device is detachably provided on the vehicle body side.