| 摘要 |
PURPOSE:To improve the durability and operability, and transmit and cut the rotation securely. CONSTITUTION:Grooves 33 of a rotating body 31 side are inclined to the rotation transmitting direction against grooves 23 on a latched member 21 side. Round shaft members 41 are rotatably inserted for connection into the mutually facing grooves 23, 33 of the latchet member 21 and the rotating member 31 so that the rotating body side engagement length l1 is equal to or less than the latchet member side engagement length L2. |
