| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch reducing the number of components, miniaturizing the size, and reducing the cost. SOLUTION: A driven side rotating body 25 is connected to a driving side rotating body so as to relatively and rotationally move within a prescribed range, and a rolling body 26 is arranged between a control face 34 provided in the rotating body 25 and the outer circumferential face of a collar 22 non- rotatably secured. The control face 34 is so formed that the interval toward the outer circumferential face 22a becomes smaller toward the both sides 34b from its central part 34a. In the rotation of the rotating body 23, the rolling body 26 is arranged in an approximately central part 34a of the control face 34, which is not clamped between the control face 34 and the outer circumferential face 22a, rotated circumferentially, and at the same time the both rotating bodies 23, 25 are engaged with each other in the rotation direction so that the rotating force of the rotating body 23 is transmitted to the rotating body 25. On the other hand, in the rotation of the rotating body 25, the rolling body 26 is clamped between the control face 34 and the outer circumferential face 22a so as to prevent the rotating body from rotating in the both directions. |
