JPH0250527U

JPH0250527U -

Info

Publication number: JPH0250527U
Application number: JP12922288U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-09
Anticipated expiration: 2003-09-30
Also published as: JPH0611369Y2

Description

[Brief explanation of the drawing]

第１図は本考案におけるガイドピン構造の一実
施例を用いたデイスクブレーキの平面図、第２図
は本考案におけるガイドピンを示す図、第３図は
第２図におけるＡ―Ａ線断面図である。１……デイスクロータ、２……マウンテイング
、３，４……摩擦パツド、５……シリンダ部、６
……リアクシヨン部、７……キヤリパ、８……筒
状部、８ａ……ガイド孔、１０……ガイドピン、
１０ａ……環状溝、１０ｂ……摺動面部、１０ｃ
……螺子部、１０ｄ……座面部、１０ｅ……溝。 Fig. 1 is a plan view of a disc brake using an embodiment of the guide pin structure according to the present invention, Fig. 2 is a diagram showing the guide pin according to the present invention, and Fig. 3 is a cross-sectional view taken along the line AA in Fig. 2. It is. 1... Disc rotor, 2... Mounting, 3, 4... Friction pad, 5... Cylinder part, 6
...Reaction part, 7... Caliper, 8... Cylindrical part, 8a... Guide hole, 10... Guide pin,
10a...Annular groove, 10b...Sliding surface portion, 10c
...Thread part, 10d... Seat part, 10e... Groove.

Claims

[Scope of utility model registration request]

A mounting member fixed to a non-rotating part of the vehicle inside the vehicle of a disc rotor that rotates integrally with the wheel, and a mounting member formed at one end of the mounting member arranged parallel to the axis of the disc rotor inside the vehicle. a guide pin that is screwed and fixed to the mounting with a threaded portion and whose seat surface portion is crimped to the mounting; and a bottomed cylindrical portion into which the sliding surface portion of the guide pin is slidably inserted. a caliper having a cylinder part containing a piston that presses a friction pad on the inside of the vehicle of the disc rotor against the disc rotor, and a reaction part that presses a friction pad on the outside of the vehicle of the disc rotor against the disc rotor; and the guide. The inner periphery of the pin is liquid-tightly fitted into an annular groove formed between the seat surface portion and the sliding surface portion, and the outer periphery thereof is liquid-tightly fitted into the open end of the cylindrical portion. In the guide pin structure of a disc brake, the guide pin is formed by extrusion molding so that the seat surface portion and the sliding surface portion of the guide pin have the same diameter. A guide pin structure for a disc brake, characterized in that at least one groove extending in the axial direction and shallower than the annular groove is formed on the outer periphery of each of the moving surface parts.