Patent ID: 6032774
Filing Date: 2000-03-07
Classification: F16D

Abstract:
A one-way drive device for rotationally coupling an input shaft to an output shaft, the one-way drive device comprising:a first member directly coupled to the input shaft for rotation about a longitudinal axis, the first member having a coupling surface and an engaging surface;a second member rotatable about the axis, the second member having a coupling surface opposing the coupling surface of the first member;a third member coupled to the output shaft, the third member being rotatable about the axis and having an engaging surface opposing the engaging surface of the first member; anda coupling element positioned between the coupling surface of the first member and the coupling surface of the second member, the coupling element rotationally coupling the first member to the second member only when the first member is rotated about the axis in a first direction relative to the second member;wherein one of the second and third members includes a cam follower and the other of the second and third members includes a camming surface, the cam follower engaging the camming surface to axially displace the second member toward the engaging surface of the third member upon rotation of the second member in the first direction relative to the third member, the engaging surface of the first member engaging the engaging surface of the third member only when the second member is axially displaced toward the engaging surface of the third member.