JPS6353024U

JPS6353024U -

Info

Publication number: JPS6353024U
Application number: JP14665986U
Authority: JP
Priority date: 1986-09-25
Filing date: 1986-09-25
Publication date: 1988-04-09

Description

[Brief explanation of drawings]

第１図は本考案の一実施例であるパーキングブ
レーキ装置を示す正面断面図であり、第２図はそ
の要部を示す平面図（一部断面）である。第３図
は上記装置を備えたデイスクブレーキを示す正面
図である。第４図は上記装置の非作動状態を示す
正面断面図であり、第５図は通常の作動状態を示
す正面断面図である。第６図は上記装置に自己サ
ーボ作用が生ずる状態を示す正面断面図であり、
第７図はその装置の倍力率と裏板に設けられた傾
斜面の傾斜角度との関係を示すグラフである。第
８図は上記装置におけるブレーキ操作部材の変位
と駆動力との関係を示すグラフである。第９図は
ばね部材の別の態様を示す正面断面図であり、第
１０図は第９図における−断面図である。第
１１図はばね部材の更に別の態様を示す正面図で
ある。１０：デイスクロータ、１２：回転抑制機構、
１４：パーキングブレーキ装置、１６：第一ブレ
ーキパツド、１８：第二ブレーキパツド、２２，
２４：裏板、２６，２８：摩擦材、３０，３２：
摩擦面、３８：プランジヤ、４２：ベルクランク
、４５：圧縮コイルスプリング、４８：パーキン
グブレーキケーブル、５０，５２：傾斜面、５４
：ころ、６０：パーキングブレーキケーブル、７
６：引張スプリング、８０：板ばね。 FIG. 1 is a front sectional view showing a parking brake device that is an embodiment of the present invention, and FIG. 2 is a plan view (partially in section) showing the main parts thereof. FIG. 3 is a front view showing a disc brake equipped with the above device. FIG. 4 is a front sectional view showing the device in its non-operating state, and FIG. 5 is a front sectional view showing the device in its normal operating state. FIG. 6 is a front sectional view showing a state in which self-servo action occurs in the above device;
FIG. 7 is a graph showing the relationship between the power factor of the device and the inclination angle of the inclined surface provided on the back plate. FIG. 8 is a graph showing the relationship between the displacement of the brake operating member and the driving force in the above device. FIG. 9 is a front cross-sectional view showing another aspect of the spring member, and FIG. 10 is a cross-sectional view taken in FIG. 9. FIG. 11 is a front view showing still another aspect of the spring member. 10: Disc rotor, 12: Rotation suppression mechanism,
14: Parking brake device, 16: First brake pad, 18: Second brake pad, 22,
24: Back plate, 26, 28: Friction material, 30, 32:
Friction surface, 38: Plunger, 42: Bell crank, 45: Compression coil spring, 48: Parking brake cable, 50, 52: Inclined surface, 54
: Roller, 60: Parking brake cable, 7
6: Tension spring, 80: Leaf spring.

Claims

[Claims for Utility Model Registration] A disc brake equipped with a disc rotor that rotates about one axis and a hydraulic rotation suppression mechanism that suppresses the rotation of the disc rotor, The parking brake device is installed at positions separated in the direction, and comprises a friction material fixed to a back plate, and the friction materials are disposed on both sides of the disc rotor so as to face the friction surfaces of the disc rotor. a caliper disposed astride the disc rotor and the first and second brake pads, with both ends facing the back plates of the brake pads, and at least one of the second brake pads is movable in a direction parallel to the rotation center line of the disc rotor and in a circumferential direction, and is moved by the operating force of the parking brake operating member transmitted by the operating force transmission mechanism. Either a back plate of a brake pad that is moved in a direction toward the disc rotor by an actuated drive member and moved by the drive member, or a surface of the caliper that faces the back plate. When the brake pad having the back plate is moved by the frictional force between the brake pad and the disc rotor, the brake pad is pressed against the disc rotor with an increased force in cooperation with an acting part provided on the other side. A parking brake device for a disc brake, characterized in that an inclined surface is provided, and a spring member that transmits the operating force while being elastically deformed is further provided in the operating force transmission mechanism.