JPS5911776B2 - Manufacturing method for caliper body in disc brake device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a method of manufacturing a disc brake device for two-wheeled motor vehicles and other motorcycles.

Conventionally, devices of this kind are known in which the caliper body is provided on the side of the front fork bottom pipe or other body frame, but in this case, the manufacturing method involves forming the body frame and the caliper body separately in advance by casting or other means. , the following bonding method is generally used, which has the disadvantage of increasing equipment such as molds and poor productivity. The purpose of the present invention is to provide a method free of such inconveniences.
A caliper body consisting of each half on both sides of the brake disc is attached to the front fork, bottom pipe, and other body frames, and one half and the other half of the body are attached to one side and the other side of the body frame, respectively. After machining each half, one half is cut and separated from the body frame, and the separated one half is attached to the other half. It is characterized in that the caliper body is formed by polymerizing and bonding with the caliper.

An example of implementing the present invention will be explained with reference to the attached drawings. In the drawings, reference numeral 1 denotes a bottom pipe of a front fork constituting the vehicle body frame, and when the pipe 1 is cast, its one side and the other side are integrally formed to form the respective halves 2, 2 of the caliper body. FIG. 1 shows this state. In this case, it is assumed that the opening surfaces 3, 3 on each side of both halves 2, 2 are in the same direction and on substantially the same plane, and then each half 2 , 2 , one half 2 , for example, the rear half 2 in the illustrated case, is cut or otherwise cut at the connecting portion 4 at its root, which is indicated by hatching in the drawing, to form the vehicle body frame 1 . Then, this half part 2 and the front half part 2 are overlapped with each other by facing each other at the opening surfaces 3, 3, and are connected together with a screw 5 inserted through these parts to form both halves 2. , 2 constitute one caliper body. In this case, as shown in FIGS. 2 and 3, inside the sleeve are a pair of left and right pads T, T on both sides of the brake disc 6, and a pair of left and right pistons 8 on both sides of the pads T, T.
8, and thus both pistons 8, 8
When the pads 7, 7 are pushed inward by pressure oil applied to the chambers 9, 9 on both sides thereof, the pads 7, 7 are pushed by this and close inwardly, and the brake disc 6 is compressed. I made it so that it would be done. In the illustrated example, the left and right pads 7, 7 are supported by support plates 10, 10 on both outer sides thereof, and the plates 10, 10
At the upper part of the guide rod 11, which is a horizontal bolt, is fitted and slid along the guide rod 11. In this way, according to the present invention, when forming the vehicle body frame, both halves of the caliper body are integrally formed on one side and the other side thereof, and then one half is separated and combined with the other to form a single piece. Compared to the conventional method in which the body frame and the caliper body or both halves of the body are separately cast and then machined and then assembled together, the body frame and the body frame are made using a mold for the body frame. Since each half of the caliper body can be manufactured, there is no need to increase equipment such as molds, and the work is simple and highly efficient.

[Brief explanation of drawings]

FIG. 1 is a side view of a semi-finished product illustrating an example of the method of the present invention, FIG. 2 is a side view of an example of the product, and FIG. 3 is a cutaway front view thereof.

Claims (1)

[Claims] 1. A caliper body consisting of each half on both sides of the brake disc is attached to the front fork, bottom pipe, and other body parts, with one half and the other half of the body on one side and the other side of the body frame, respectively. After machining each half, one half is cut and separated from the body frame, and the separated one half is attached to the other half. A method for manufacturing a caliper body in a disc brake device, characterized in that the caliper body is formed by polymerizing and bonding with the caliper body.