| 摘要 |
PURPOSE:To cause transmission torque to vary with the direction of rotation, by a method wherein a friction clutch device is formed with a rotary shaft, a first rotary body and a second rotary body, which are capable of transmitting friction, a friction material which has the factor of friction with the second rotary body varying with the direction of rotation, and an elastic member which forces the secondary rotary body and the friction material into pressure contact with each other. CONSTITUTION:A first rotary body 18, which is secured to a rotary central shaft 17, and a second rotary body 21 which has the factor of friction with a friction material 20 varying with the direction of rotation are provided, and the second rotary body 21 is forced into pressure contact with the friction material 20 through the force of an elastic member 23. This enables transmission torque to vary with the direction of rotation through constitution of a friction clutch mechanism by means of the friction material and the second rotary body 21. |
