| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch mechanism using a planetary gear mechanism having reduced impact sounds and vibration to be generated when transmitting/interrupting driving force.SOLUTION: A clutch mechanism includes a planetary gear mechanism in which rotation input, output or lock is alternatively assigned to each of a sun gear 111, a member holding a planetary gear engaging with the sun gear, and an internal gear engaging with the planetary gear to obtain a drive transmitting function. The clutch mechanism further includes a rotated restriction part 112 having an engaged portion 113 and provided integrally with a lock side transmission member (the sun gear 111) to which the lock is assigned, and a rotating restriction part 121 having an engaging portion 126 in another section for setting the lock side transmission member into a locked condition in the engaging state of engaging with the engaged portion of the rotated restriction part through rocking motion, and for setting the lock side transmission member into an unlocked condition in the non-engaging state of not engaging with the engaged portion of the rotated restriction part. The rotation restriction member includes a vibration absorbing part 141 for absorbing vibration generated when changed over into the engaging state or the non-engaging state. |
