| 摘要 |
[Problem] To provide a clutch mechanism which can be easily made compact and which can be produced with good productivity. [Solution] Cam surfaces (21, 23), the distance of each of which to the inner peripheral surface (11a) of a housing chamber is gradually reduced toward one side of the cam surface (21, 23), and recesses (22), which are each adjacent to the one side of each of the cam surfaces (21, 23), are formed on the outer peripheral surface of an output rotating body (20). Pressing transmission sections (31) are formed on an input rotating body (30), and the pressing transmission sections (31) are fitted in the recesses (22) with circumferential play therebetween and protrude in the centrifugal direction from the inside of the recesses (22). Engagement pieces (41, 42) are arranged so as to be in contact with the cam surfaces (21, 23) and the inner peripheral surface (11a) of the housing chamber. When the input rotating body (30) is rotated to the other side which is the side opposite the one side, the pressing transmission sections (31) come into contact with the engagement pieces (41, 42) and then come into contact with circumferential end surfaces in the recesses (22) to press and move the output rotating body (20). |
