JPS59189934U

JPS59189934U - Disc brake pad wear warning device

Info

Publication number: JPS59189934U
Application number: JP8496583U
Authority: JP
Inventors: 神野　京一
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 1983-06-03
Filing date: 1983-06-03
Publication date: 1984-12-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すディスクブレーキの断
面側面図、第２図は第１図中■−■線からの要部拡大断
面図、第３図は第１図に示すディスクブレーキに用いら
れるパッドリテーナの斜視図、第４図は第３図に示すパ
ッドリテーナの陥入部を示す拡大図、第５図は第１図に
示すディスクブレーキの作動状態を示し、同図Ａはパッ
ドが摩耗限界点に達していない場合、同図Ｂはパッドが
摩耗限界点に達した場合、同図Ｃは摩耗限界点に達した
パッドの戻り状態を夫々示す説明図である。１・・・ディスクブレーキ、２・・・ディスクロータ、
３．３ａ・・・パッド、４・・・摩擦材、５・・・裏金
、６・・・サポートメンバ、７・・・駆動機構、８・・
・押圧面、１０・・・パッドリテーナ、１２・・・摺動
面、１４・・・陥入部、１５・・・接触片。Fig. 1 is a sectional side view of a disc brake showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of main parts taken from line ■-■ in Fig. 1, and Fig. 3 is a disc brake shown in Fig. 1. FIG. 4 is an enlarged view showing the recessed part of the pad retainer shown in FIG. 3, FIG. 5 shows the operating state of the disc brake shown in FIG. 1, and FIG. Figure B is an explanatory diagram showing the return state of the pad when the pad has not reached the wear limit point, FIG. 1... Disc brake, 2... Disc rotor,
3.3a... Pad, 4... Friction material, 5... Back metal, 6... Support member, 7... Drive mechanism, 8...
- Pressing surface, 10... Pad retainer, 12... Sliding surface, 14... Invagination part, 15... Contact piece.

Claims

[Scope of utility model registration request]

A disc row that rotates with a rotating body such as a wheel,
A pair of pads are disposed so as to be press-contactable on both sides of the disc rotor, a support member is attached to the vehicle body and supports the pads in a slidable manner, and the two pads are supported by the support member during braking. a drive mechanism for press-contacting the pad to the rotor, the sliding surface of the pad retainer mounted on the support member side is controlled by a pressing surface provided on the opposite side of the pad from the side supported by the support member. 5. In the disk boot which elastically presses the pad against the support member by slidingly pressing the pad retainer, the sliding surface does not press the pad from the sliding surface of the pad retainer. A contact piece is extended to contact the outer periphery of the disc rotor in the state, and the sliding surface is provided with a contact piece that invades the pressing surface of the pad when the pad that has reached the wear limit is pressed against the disc rotor. A pad wear warning device for a disc brake, characterized in that a recessed portion is formed to release the pad from being suppressed by the sliding surface.