| 摘要 |
[Problem] To reduce malfunctions caused by wear, deformation, or the like. [Solution] A clutch mechanism comprises an accommodating chamber 11 having a cylindrical space, an output rotating body 20 coaxially accommodated in the accommodating chamber 11, an input rotating body 30 provided coaxial to the output rotating body 20, cylindrical or spherical engaging elements 41, 42 provided between the inner circumferential face of the accommodating chamber 11 and the outer circumferential face of the output rotating body 20, and a biasing member 50 to bias the engaging elements 41, 42 to one side in the circumferential direction. The ratio of the outer diameters of the engaging elements 41, 42 to the inner diameter of the accommodating chamber 11 is in a range of 0.20 to 0.27 inclusive. |
