JPS6226179A - Disk brake gear for 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 disc brake device for a motorcycle, particularly a front wheel supported by a pair of front forks.

Moxibustion pot and death The disc brake device was fixed to the wheel hub.

Braking of the wheel is performed by compressing and pinching an annular disc between the friction pads of the caliper.In the front wheel of a motorcycle, the caliper body that carries the friction pad is attached to the front fork behind or in front of the front fork. It was common to install it along the FIG. 1 shows such a conventional disc brake device. 01 is the lower member (bottom case) of the front fork, and this bottom case 01 has two upper and lower brackets that protrude rearward.
-〇2.03 is provided, and the bracket 02.0
A caliper body 04 is attached to the caliper body 04 astride 3 with bolts 05.06. Reference numeral 07 denotes a disk that is fixed to the wheel and rotates together with the wheel, and the caliper main body 04 sandwiches the disk 01 from its outer circumferential side, with friction pads facing each side of the disk 07.

In such conventional disc brake devices, the mounting position of the caliper body in the circumferential direction of the disc is limited to the front and rear of the front fork and close to the front fork. had less freedom.

In this invention, the caliper body is placed in the space between the front wheel and the plane containing the front fork, with the disc sandwiched between the discs from the inner circumferential side thereof.

According to the present invention, the caliper main body can be provided at any position in the circumferential direction of the disk, and the degree of freedom in design is increased compared to the conventional one.

Missing JLJ Hereinafter, the present invention will be described with reference to illustrated embodiments.

FIG. 2 is a cross-sectional view of the disc brake device according to the present invention as seen from the front of a motorcycle, and FIG. 3 is a side view of the disc brake equipment as seen from the right side of FIG. 2. Reference numeral 1 denotes a front wheel of a motorcycle, which is rotatably supported by a front fork 2 via an axle 3. The outer peripheral portion of an annular disk 4 is fixed to the side of the front wheel 1 by poles 1 to 5. A caliper main body 6 is disposed at a position radially inward from the portion fixed by the bolt 5 so as to sandwich the disc 4 from both sides. As shown in FIG. 2, the disc portion 1a of the front wheel 1 bulges to the right in the same figure.
Since a wide space is formed between the caliper body 6 and the left front fork 2, the caliper main body 6 is housed within this space. In this embodiment, the caliper main body 6 has cylinders 7. which face each other on both sides with the disc 4 in between.
A piston 8.8 is fitted in each of these cylinders 7.7, and each screw 1 is actuated by hydraulic pressure supplied to the cylinder 7.7 through the brake pipe 9 (Fig. 3).
The hens 8.8 are pushed towards the disk 4, pressing the respective padding elements 10.10 against the surface of the disk 4. Each pad member 10 is slidably supported by a pad hanger pin 11.

The caliper body 6 is provided with two parallel rows of cylinders 7.7 #JWt, which face each other as shown in FIG.

The caliper body 6 is integrally provided with a bracket 12 for attaching it to the vehicle body.
2 has a flat fan-shaped frame shape as shown in the figure, and extends from the caliper body 6 inward in the radial direction of the front wheel 1, with a boss 12a at the inner end thereof fitting onto the axle 3 via a collar 13. has been done. A wide space 14 is secured between the front wheel 1 and the front fork 2 on the wheel center side of the caliper body 6, and as will be described later, after the axle 3 is pulled from the boss 12a, the caliper body 6 is It can be moved into this space 14 and removed from the disk 4.

On the other hand, on the outside of the caliper body 6, a mounting screw hole 15 is provided between the cylinders 7 arranged in two rows in the front and rear. It is supported by the axle 3 and the screw hole 1
5 through the bolt 16 that is screwed into the front fork 2.
mounted on. Two upper and lower mounting brackets 17 and 18 are protruded from the front fork 2, and a mounting piece 19 is fixed across these mounting brackets 17 and 18.

A mounting seat 20 is provided in the middle of this mounting piece 19, and the bolt 16 is inserted into this mounting seat 20.
By screwing into the screw hole 15, the caliper body 6 is attached to the front fork 2 via the attachment piece 19. Therefore, the caliper main body 6 is fixed to the vehicle body side without rotating around the axle shaft 3, and the pad member 1
Braking force can be transmitted to the disc 4 via the 0. In this embodiment, the mounting bracket 18 is an actuating member of the anti-nose dive device, and is pushed in by braking torque against the force of a spring to operate the anti-nose dive device.

However, in general, the mounting piece 19 does not necessarily need to be provided between the upper and lower mounting brackets 17, 18 along the front fork 2, and may extend from a point on the front fork 2 in any direction depending on the position of the caliper body 6. Since the caliper main body 6 can be placed at any position in the circumferential direction of the disc 4, the caliper main body 6 can be placed at any position in the circumferential direction of the disc 4, and has a greater degree of freedom in design than the conventional caliper main body, which is supported at two points on the front fork. increase

Furthermore, since the caliper main body 6 in this embodiment is disposed on the inner peripheral portion of the disc 4, it is not noticeable and gives the front wheel 1 a simple appearance.

Moreover, the caliper main body 6 can be easily taken out and installed without removing the disc 4 from the front wheel 1, so maintenance is easy.

That is, since the space 14 is formed inside the caliper body 6 (on the wheel center side) as described above, when taking out the caliper body 6, remove the bolts 16 and move the car @3 to the boss portion 12a of the bracket 12. By handling the caliper body 6 from the space 1 as shown by the chain line '5a in FIG.
4 and can be removed from the disk 4. The caliper body 6 moved into the space 14 in this manner can be taken out to the outside very easily. Further, the caliper main body 6 can be easily attached by reversing the above order.

11 Yutaka As described above, the present invention provides a disc brake device for a motorcycle consisting of a disc fixed to a wheel and a caliper that presses the disc to perform a braking action. Since the caliper body is placed in the space between the plane containing the front fork and the wheel, sandwiched from the inner circumferential side, the caliper body can be installed at any position in the circumferential direction of the disc, providing greater freedom in selecting the location of the caliper body. Moreover, the caliper body is easy to install and remove, and maintainability is good. Also, a wheel with a simple appearance is obtained.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional disc brake device, FIG. 2 is a sectional view of an embodiment of the present invention viewed from the stop surface, and FIG. 3 is a side view of FIG. 2 viewed from the right side. 1... Front wheel, 2... Front fork, 3... Axle, 4... Disc, 5... Bolt, 6... Caliper body, 7... Cylinder, 8... Piston, 9・
...Brake piping, 10...Pad member, 11...
Pad hanger bin, 12...Bracket l-113.
...Color, 14...Space, 15...Screw hole, 16
...To port 1, 17.18...Mounting bracket, 1
9...Mounting piece, 20...Mounting seat.

Claims (1)

[Claims] In a disc brake device for a motorcycle, which consists of a disc fixed to a wheel and a caliper that obtains a braking action by press-contacting the disc, the caliper body is sandwiched between the disc from its inner circumferential side and a flat surface including the front fork. A disc brake device, characterized in that it is arranged in a space between the wheels.