Patent ID: 6250438
Filing Date: 2001-06-26
Classification: B62L,F16D

Abstract:
A disc brake for a bicycle comprising:a disc and a casing including a recess and a passage defined therein, said passage communicating with said recess;a bracket attached to said casing;at least one groove defined in an inner sidewall of said passage and having a stopper formed near said recess;a spring received in said groove of said casing and having one end abutting said stopper of said groove;a press block received in said passage with one side facing said recess of said casing and at least one lug extending out from the other side and an arced groove defined therein, said lug received in said groove of said casing and abutting the other end of said spring;a rotating block received in said passage of said casing, said rotating block with two cams extending from opposite ends of a diameter of one side of said rotating block and a shaft extending from a center of the other side of said rotating block, each of said two cams having an inclined portion extending to said press block, said inclined portion being parallel to said arced groove of said press block and opposite to each other, thereby forming a slot aligning with said arced groove of said press block;a push rod mounted between said arced groove of said press block and said slot of said rotating block;a retaining ring screwed into said passage of said casing to hold said press block and said rotating block in place, said retaining ring having a through hole defined therein to allow said shaft of said rotating block to penetrate; anda lever including a hole defined in one end thereof to securely receive a free end of said shaft said lever being and held in place by a locking piece.