Patent ID: 7614484
Filing Date: 2009-11-10
Classification: B60T,B62L,F16D

Abstract:
1. A hydraulic disc brake device used in a brake system of a vehicle, comprising: a base assembly mounted on the vehicle; a sliding assembly slideably mounted on the base assembly and moveable along a predetermined arc; a return spring disposed between the base assembly and the sliding assembly, a relative motion between the base assembly and the sliding assembly can cause a compression of the return spring; a brake lining assembly employed to clamp a brake disc and controlled by oil pressure of an oil pressure system of the vehicle; a control valve assembly disposed on the oil pressure system for controlling the oil pressure of the oil pressure system, wherein an inertial force acted on the brake lining assembly in the case of a brake action will cause the sliding assembly to move along the predetermined arc with respect to the base assembly, the relative movement between the sliding assembly and the base assembly will cause compression of the return spring and make the control valve assembly stop increasing the oil pressure, then the control valve assembly produces a press relief oil space in the base assembly, after the brake lining assembly releases the brake disc, the return spring will close the pressure relief oil space again, thus increasing the oil pressure again, allowing the brake lining assembly to clamp and release the brake disc repeatedly.