JPS5832072B2 - disc brake device - Google Patents

Description

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

Conventionally, this type of device has a caliper body fixed to the side of the vehicle body frame, and inside the caliper body, a pair of left and right pads on both sides of the brake disc and a pair of left and right pistons on both sides of the brake disc are provided. As is known, in this case, the caliper body is generally prepared in advance separately from the vehicle body frame, and is itself separated into left and right halves. However, there are disadvantages in that it requires a lot of effort to manufacture and is troublesome to assemble.

The purpose of the present invention is to obtain a device that does not have the disadvantages of the present invention, in which a caliper body is fixedly installed on the side of the front fork bottom pipe or other vehicle body frame, and inside the caliper body there is a In a disc brake device in which a pair of pads and a pair of left and right pistons are arranged on both outer sides of the caliper body, the caliper main body is connected to one half part integrally formed with the vehicle body frame, and a screw is attached to the one half part. A pair of left and right support plates are formed between the two halves of the caliper body and are slidably supported by a guide rod that connects the two halves. and the pad is attached to the support plate.

Embodiments of the present invention will be described with reference to attached drawings.

In the drawings, reference numeral 1 indicates a front fork pipe and other body frames, and a caliper body 2 is fixedly installed in the front of the body frame 1, and a pair of left and right pads 4 on both outside sides of a brake disc 3 are installed inside the caliper body 2.
, 4 and pistons 5, 5 on both outer sides thereof are arranged.

Although the above is not particularly different from the conventional one, according to the present invention, the main body 2 is divided into left and right halves 6, 6, and one half 6 is integrally cast with the vehicle body frame 1. The other half 6 is overlapped with the other half 6 and connected to the other half 6 by a bolt or other screw 7 inserted therethrough.

Both halves 6, 6 are divided by a line 8 approximately at the center of the caliper body 2 as shown in Fig. 2, or by a line 8 at a position offset to one side from the center as shown in Fig. 3. It is optional.

The left and right pads 4, 4 are supported on support plates 9, 9 on both outer sides thereof, and are fitted onto a guide rod 10 consisting of a transverse bolt above the iron plates 9, 9, and run along this. The pad 4 is slidable so that the pad 4 can be easily replaced by simply removing the guide rod 10, and the above-mentioned fastening screws 7 are provided on a pair of outer sides of the pad 4.

To explain its operation, when the brake pedal or other brake operating element is operated, both pistons 5.5 are supplied with pressure oil to their outside sides and act toward the closing side, and accordingly, both pads 4, 4 The two halves 6 and 6 act to close each other to clamp the brake disc 3 and obtain a braking effect, and this point is not particularly different from the conventional one, but considering its manufacture, both halves 6,
It is sufficient to form one of the parts 6 and the body frame 1 into two bodies by integral casting or other means, and to superpose and bond the other part to this, which reduces the number of parts and makes the assembly simple and easy. I can do it.

In this way, according to the present invention, the caliper body is formed into one half part that is integrally formed with the vehicle body frame and the other half part that is connected to the one half part, so that the caliper body is integrally formed with the vehicle body frame. One half can be machined to improve the accuracy of the axis of the cylinder and the parallelism of the connecting surface to the axle of the vehicle body frame, and its rigidity can be increased. , the sealing inside each cylinder is facilitated, making its assembly simple and easy, and the pad is supported by a guide rod that is fitted between the two halves of the caliper body (fittingly inserted and connecting the two halves). Since it is attached to the support plate, replacement of the pad due to wear can be done by simply removing the guide rod without uncoupling the two halves, which has the effect of making pad replacement extremely easy. .

[Brief explanation of the drawing]

FIG. 1 is a side view of one example of the device of the present invention, FIG. 2 is a cut front view thereof, and FIG. 3 is a cut front view of a modified example thereof. 1... Body frame, 2... Caliper body, 3... Brake disc, 4, 4... Pad, 5, 5... Piston, 6.6... Both halves, 7...・Screw.

Claims (1)

[Claims] 1. Fix the CaliJ, No. main body to the side of the front fork, bottom pipe, and other body frames, and inside it install a pair of left and right pads on both outsides of the brake disc and a pair of left and right pistons on both outsides. In the disposed disc brake device, the caliper main body is formed into one half part formed integrally with the vehicle body frame, and the other half part connected to the one half part with a screw or the like, A pair of left and right support plates slidably supported by a guide rod connecting the two halves are fitted between the two halves of the caliper body, and the pads are attached to the support plates. disc brake device.