| 摘要 |
Provided is a stay which is capable of stabilizing movement of a component part used for transmitting, or not transmitting, the torque of one of a first member and a second member to the other. When a second member (12) rotates relative to a first member (11) in one direction, a cam base (36) moves away from a disk (34) in the direction of the rotation axis (C), and the second member (12) and the cam base (36) rotate relative to the first member (11) and the disk (34). When the second member (12) rotates relatively to the first member (11) in the other direction, the cam base (36) moves towards the disk (34) in the direction of the rotation axis (C), and the second member (12), the cam base (36) and disk (34) rotate relative to the first member (11) with resistance force. |
