Bi-directional clutch
AssigneeAichi Kikai Kogyo Kabushiki Kaisha
InventorMasaaki Saiko
Life of this patent
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Abstract
A bi-directional clutch comprises an outer ring, an inner ring and a roller. The roller is retained by a retainer and is positioned between the outer ring and the inner ring. The outer ring has a cam surface, so that the roller forms a wedge that contacts the outer ring and the inner ring.
Claims5
A bi-directional clutch comprising an outer ring, an inner ring, and a roller, a retainer having spring plates, said roller being retained by said spring plates and positioned between said outer ring and said inner ring, and said outer ring having a cam surface, wherein said cam surface includes a first surface for a normal rotation and a second surface for a reverse rotation, so that said roller forms a wedge that contacts said outer ring and said inner ring,
- a stopper surface at one end of said cam surface, said roller contacting said stopper surface when a load torque exceeds a set load torque, so that said stopper surface functions as a torque limiter.
A bi-directional clutch comprising an outer ring, wherein said outer ring is formed with an input gear, an inner ring, wherein said inner ring is formed with an output gear, and a plurality of rollers, said plurality of rollers being retained by a retainer and positioned between said outer ring and said inner ring, and said outer ring having a cam surface, wherein said cam surface includes a first surface for a normal rotation and a second surface for a reverse rotation, so that said roller forms a wedge that contacts said outer ring and said inner ring,
- a stopper surface at one end of said cam surface, said roller contacting said stopper surface when a load torque exceeds a set load torque, so that said stopper surface functions as a torque limiter, and
- a friction plate pressed against said retainer by a spring.
Dependencies are inferred from the claim text.