JPS6137866Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to an inside type disc brake device for motorcycles and other two-wheeled vehicles.

A device of this kind is known that consists of a brake disk attached to one side of an axle hub supported by an axle and a caliper assembly attached to the axle so as to straddle the disk. It is required that the three-dimensional structure be compact and that it can be installed stably in terms of strength.

The purpose of the present invention is to obtain a device that satisfies such requirements. an annular brake disc 2 mounted inwardly from the brake disc 2;
and a caliper assembly 7 which is fitted and supported on the axle 1 so as to be slidable in the axial direction through a central shaft hole 8, and the caliper assembly 7 is connected to the brake disc 2 from the inside diameter direction thereof. a cover-shaped outer caliper member 5 facing the outer surface of the brake disc 2; and an inner caliper member 6 extending to the inner surface of the brake disc 2.
and the outer caliper member 5.
is connected to the vehicle body frame 10 via a torque link 9 attached in the tangential direction of its outer periphery, and an elastic bush 11 is interposed at the connecting portion of the torque link 9.

The drawing shows the case where it is applied to the rear wheel of a motorcycle or other two-wheeled vehicle; in this case, the body frame 1
0 consists of a rear fork on one side that supports the end of the axle 1. The wheel hub 3 has a sprocket 13 on its outer periphery and a driven sprocket 14 on its end face, and has an annular brake disc 2 located on the outer periphery of the cylindrical shaft 4.
is fixed to the hub 3 with bolts and nuts 15 on the outer periphery, and the cylindrical shaft 4 is fitted onto the axle 1 via a pair of left and right ball bearings 16, 16 on the inner periphery. The caliper assembly 7 is loosely fitted onto the axle 1 through a collar 17 on the outer periphery in the shaft hole 8 at the center of the outer caliper member 5. It was made to be fixed by being clamped between it. In the drawings, reference numeral 18 indicates a cylindrical support member extending inward from the inner end of the collar 17;
8 is installed substantially inside the inner caliper member 6 and acts to support it from the inner peripheral surface.

Both caliper members 56 have at least a pair of left and right pads 19, 19 on the surface facing the disk 2, and a caliper piston 2 on the back side of one of them.
0, so that when the piston 20 moves forward, both pads 19, 19 close together to clamp the disk 2 therebetween. In the drawings, reference numeral 21 indicates a pin for positioning both pads 19, 19, and 22 indicates a bolt that connects both caliper members 5, 6 to each other.
Each end of the torque link 9 is fitted into each pin 23 in each bush 11.
1 consists of two inner and outer layers with a rubber layer 12 in the middle, thus making the whole an elastic bushing.

To explain its operation, the caliper piston 20
When the butts 19, 19 are closed as the brake disc 2 moves forward, the brake disc 2 is clamped from both outside sides and braking is applied to it. During such operation, the caliper assembly 7 may be damaged due to wear of each pad 19, 19.
corresponds to this by moving on the axle 1, and this re-torque link 9 swings left and right to some extent, but this swing is absorbed by the rubber layer 12 at each end, causing no inconvenience. do not have.

In this way, according to the present invention, the brake disc 2 attached to one side of the wheel hub 3 is formed in an annular shape and is attached to the inner side of the cylindrical shaft 4 at the center of the wheel hub 3. Since the supported caliper assembly 7 is formed so as to straddle the annular brake disc 2 from its inner diameter direction, the disc 2 and the caliper assembly 7 can be compactly attached to the axle 1, and the caliper assembly 7 can be mounted on the axle 1 in a compact manner.
The caliper assembly 7 is formed of a cover-shaped outer caliper member 5 facing the outer surface of the disk 2 and an inner caliper member 6 extending onto the inner surface of the disk 2. The disk 2 is supported by the outer caliper member 5 and mounted in a stable manner in terms of strength, and is effectively protected from muddy water etc. by the outer caliper member 5. Furthermore, the outer caliper member 5 is attached via a torque link 9 attached in the tangential direction of the outer periphery. Since the caliper assembly 7 is connected to the vehicle body frame 10 with an elastic bush 11 interposed in the connection part, the caliper assembly 7 absorbs the torque during braking to obtain good braking, and also prevents the caliper from wearing due to pad wear. When the assembly 7 is moved, it can slide smoothly without any resistance, resulting in a good operating condition.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of one example of the device of the present invention, and FIGS. 2 and 3 are the - line and -
FIG. 1... Axle, 2... Brake disc, 3...
Wheel hub, 4... Cylindrical shaft, 5... Outer caliper member, 6... Inner caliper member, 7... Caliper assembly, 8... Shaft hole, 9... Torque link, 10...
...Vehicle frame, 11...butsuyu.

Claims (1)

[Scope of utility model registration request] An annular brake disk 2 mounted on one side of a wheel hub 3 that is fitted and supported on the axle 1 via a central cylindrical shaft 4, located inward from the end of the cylindrical shaft 4; A caliper assembly 7 is slidably fitted and supported in the axle 1 via a central shaft hole 8 in the axle 1 from the inside diameter direction of the caliper assembly 2.
The caliper assembly 7 is formed of a cover-shaped outer caliper member 5 facing the outer surface of the brake disc 2, and an inner caliper member 6 extending to the inner surface of the brake disc 2. A disc brake device characterized in that an outer caliper member 5 is connected to a vehicle body frame 10 via a torque link 9 attached to the tangential direction of the outer periphery, and an elastic bush 11 is interposed at the connecting portion of the torque link 9. .