Ratchet one-way clutch and stator using ratchet one-way clutch

   
   

The present invention provides a ratchet one-way clutch comprising inner and outer races disposed on a same axis and in which a pawl member as a torque transmitting member and a biasing member for biasing the pawl member are provided in one of the inner and outer races and a recessed portion into which the pawl member is fitted is provided in the other of the inner and outer races and a damper spring is provided on an outer periphery of the outer race and wherein an inner surface of a spring pocket for containing the damper spring has a shape complementary to a shape of the damper spring.

 
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