Invention Grant
US09308818B2 Power transmission device 有权
动力传动装置

Power transmission device
Abstract:
A power transmission device includes an input rotary member having a pressing portion, and an output rotary member having a receiving portion to be pressed by the pressing portion. The input rotary member forces the output rotary member to rotate when resilient members disposed between the input rotary member and the output rotary member are deformed by predetermined amounts.
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