Patent ID: 6092636
Filing Date: 2000-07-25
Classification: F16D

Abstract:
A oneway clutch comprising:an inner member having a raceway on an outer periphery thereof;an outer race member concentric with said inner member and having a predetermined number of cam surfaces on an inner periphery thereof;torque transmitting members each provided between an outer peripheral raceway of said inner member and the outer race member to be displaced between a torque transmitting position on an outer race cam surface;biasing members each biasing a corresponding torque transmitting member toward said torque transmitting position; anda retainer retaining said torque transmitting members and said biasing members;wherein grooves extended in an axial direction are formed at predetermined positions on an inner peripheral side of said outer race member, and respective block bearings are fitted in said grooves through first apertures provided on said retainer corresponding to said grooves in order to position said retainer in a circumferential direction;said retainer comprises a first annular side member, a second annular side member, and pole portions connecting said first annular side member and said second annular side member in the axial direction;said pole portions, together with said first and second annular side members, define said first apertures and furtherdefine second apertures retaining said torque transmitting members and said biasing members; andeach of predetermined pole portions out of said pole portions of said retainer is provided with at least two radially protruding portions to support a corresponding biasing member in the circumferential direction, each of said radially protruding portions is formed to be inclined in the circumferential direction, and each of said biasing members comprises a clip-shaped portion which bends around one of said radially protruding portions of the corresponding predetermined pole portion to pinch said one protruding portion and is fixed to the other of said radially protruding portions, and a tongue portion which is engaged with said one of said radially protruding portions to adjust the biasing condition.