| 摘要 |
PURPOSE:To provide a rotation transmitting device possible to mechanically conduct the transmission and change of a driving torque and control the transmitting direction of the torque only in one direction. CONSTITUTION:Engaging surfaces 5, 6 are formed on the opposed surfaces of an outer ring 1 and an input shaft 2, and a roller 10, 11 engaged with the engaging surfaces by the relative rotation between the input shaft 2 and a retainer 8 and an elastic member for holding the roller in neutral state are integrated into the pocket of the retainer 8 provided between both the engaging surfaces. The holding equipment 8 and the input shaft 2 are connected to a control shaft 13 through pins 17, 19, a rotating directional clearance is provided in the connecting part between the pin 19 and the input shaft 2, and a friction generating means 20 for decelerating the rotation of the control shaft 13 is connected to the top end of the pin 19. When the input shaft 2 is rotated, the rotation of the control shaft 13 is later than the input shaft 2 by the clearance portion of the connecting part, and the roller 10, 11 is laid into engaging operating state by the relative movement of the retainer 8. When the rotation of the outer ring 1 is faster than the input shaft 2 in this state, the outer ring is overrun, and in the reverse case, the rollers are engaged with the engaging surfaces to transmit the torque to the outer ring.
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