Patent ID: 7353930
Filing Date: 2008-04-08
Classification: F16D

Abstract:
1. A clutch assembly for use in a housing having a race surface, the clutch assembly comprising: a shaft, an output structure fixedly coupled to the shaft, the output structure being constructed and arranged to transmit motion thereof to another member, a cam fixedly coupled to the shaft, a clutch plate mounted on the shaft for rotation with respect to the shaft, follower structure operatively associated with the cam, and an input structure mounted with respect to the shaft for rotation with respect to the shaft, the input structure being associated with the cam and the follower structure, the input structure being constructed and arranged to receive, in a normal operating condition, an input motion such that rotation of the input structure causes rotation of the cam and shaft so as to drive the output structure, wherein during a back drive condition of a motor, when the output structure is driving and torque is transmitted to the shaft and thus to the cam, the cam causes the follower structure to contact and exert pressure on the race surface thereby preventing rotation of the shaft.