| 摘要 |
PURPOSE:To facilitate the operation and improve power transmission accuracy by using a unidirectional clutch as a clutch and providing one side of a coupling with a pin or a groove. CONSTITUTION:In case of coupling the rotary shaft 16 of a driving part with the rotary shaft 18 of a driven unit which has a rotary part and a sliding part so as to transmit torque, a unidirectional clutch 22, which transmits only the rotation in one direction, is attached inside either one of the couplings 24 of the rotary shaft 16. Moreover, either one 24 of couplings 24 and 25 is provided with a pin 20, which slides freely through a compression spring 23, and the other 25 is provided with a groove, which couples with this pin so that the pin 20 on the opposite side and the groove 21 may be coupled to each other when the rotary shaft 16 of the driving part and the rotary shaft 18 of the driven unit are coupled to each other through the clutch 22. At this time, the clutch 22, due to its unidirectionality, does not operate when the transmission of power is performed between the pin 20 and the groove 21, so the sliding of the driven unit becomes easy. |
