| 摘要 |
<p>A clutch device 29 includes: a handle-side housing 36 in which a plurality of lock grooves 42 are formed to be spaced apart from each other in an inner circumference and in a circumferential direction; a tire-side housing 38; a plurality of lock bars 40 that are provided on the tire-side housing 38 so as to be capable of moving in a radial direction of the tire-side housing 38 and arranged to be spaced apart from each other in a circumferential direction of the tire-side housing 38; and an advancing/retracting mechanism that causes the lock bar 40 to advance and retract in a direction toward the lock groove 42. The plurality of lock bars 40 have: a lock bar 403 that enters a lock groove 423 of the plurality of lock grooves, when the plurality of lock bars 40 are moved toward the plurality of lock grooves 42 by the advancing/retracting mechanism, irrespective of a rotational phase difference between the handle-side housing 36 and the tire-side housing 38; and a lock bar 401 that enters a lock groove 421.</p> |
