| 摘要 |
PROBLEM TO BE SOLVED: To provide a configuration which reduces non-uniform rotation with a configuration having an intermediate transmission member 84.SOLUTION: A drum-side fitting member 21 as a rotating body and an intermediate transmission member 84 transmit rotation driving force by three or more first contact sections 91 arranged in a rotation direction. A drive transmission member 81 and the intermediate transmission member 84 transmit rotation by three or more second contact sections 92 arranged in the rotation direction. The first and second contact sections 91 and 92 are arranged out of phase with each other in the rotation direction. The number of one of the contact sections is odd multiple of that of the other. The rotation-direction center between the first contact sections 91 adjacent in the rotation direction and the rotation-direction center between the second contact sections 92 adjacent in the rotation direction are arranged out of phase with each other in the rotation direction. |
