Patent ID: 6718844
Filing Date: 2004-04-13
Classification: B62K,B62M,Y10T

Abstract:
A bicycle shift control device comprising:a base member for attachment to the bicycle; an operating member rotatably supported relative to the base member for rotating in first and second directions; a transmission control member rotatably mounted relative to the base member for controlling the pulling and releasing of a transmission control element; a bracket for supporting a transmission control element diverting surface; wherein the transmission control member is disposed between the operating member and the bracket; an intermediate member coupled for rotation with the transmission control member, wherein the intermediate member rotates around a first axis, and wherein the intermediate member moves in the direction of the first axis between an engagement position in which the intermediate member engages the bracket and a disengagement position in which the intermediate member is disengaged from the bracket; wherein the operating member includes a drive surface for driving the intermediate member in a third direction when the operating member rotates in the first direction; wherein the intermediate member includes a first cam surface for causing movement of the intermediate member in the direction of the first axis toward the disengagement position during rotation of the intermediate member in the third direction; and wherein the intermediate member includes a positioning surface for preventing the intermediate member from rotating around the first axis when the intermediate member is in the engagement position.