| 摘要 |
PROBLEM TO BE SOLVED: To reliably transmit the rotation of an inner ring to an outer ring, and thereby prevent unintentional idle-running of the inner ring.SOLUTION: A roller clutch 32 includes an outer ring 32a, an inner ring 32b, rollers 32c, first spring members 32e, retainers 32d, and protrusions 327d. The rollers 32c each are disposed between the inner ring 32b and the outer ring 32a, and are movable between a transmission position and a shut-off position. The retainers 32d each have a roller holding space 328d for holding the roller 32c, and a supporting part 322d for supporting the first spring member 32e. The protrusions 327d each regulate the movement of the roller 32c against the biasing force of the first spring member 32e in a predetermined position. |
