Patent ID: 6230853
Filing Date: 2001-05-15
Classification: F16D

Abstract:
A drum brake device comprising:a back plate;first and second anchor members mounted on said back plate;a single brake shoe movably mounted on said back plate, one end of said brake shoe functionally engaging said first anchor member by abutment against said first anchor member and the other end of said brake shoe functionally engaging said second anchor member by abutment against said second anchor member;a service brake actuator, which activates when a service brake is applied, mounted on said back plate;a supporting member mounted on said back plate;a link pivotably supported at a pivot point of a central region of said brake shoe, one end of said link functionally engaging said service bake actuator, while the other end of said link being supported by said supporting member, so that an operation force of the service brake actuator which acts on the link is transferred to said brake shoe through the pivot point of said link, whereinone of said first and second anchor members closer to a horizontal straight line through a center of the brake device and across said brake shoe functions as a pivot shoe anchor, while the other anchor member faraway from said horizontal straight line functions as a floating shoe anchor.