| 摘要 |
PURPOSE:To eliminate a contact of a clutch ring with an electromagnetic stationary core for a clutch even if a frinctional material is worn by disposing a ball bearing in the outer periphery of a clutch rotor and allowing the outer wheel of the bearing to confront the clutch ring in a rotatable state. CONSTITUTION:A clutch ring 6 is mounted through a flywheel 5 on a motor shaft 11, a frictional material 8 mounted with a clutch rotor 17 is provided at an output shaft 7, and is made confront the clutch ring 6. A ball bearing 12 is disposed in the outer periphery of the clutch rotor 17, the inner wheel of the bearing is fixed to the rotor 17, and the outer wheel of the bearing is projected to the side of the clutch ring 6 from an electromagnetic stationary core 9 for a clutch in a rotatable state. In this manner, since the ring 6 makes contact with the outer wheel of the bearing 12 before the ring 6 makes contact with the core 9 even if the material 8 is worn, no malfunction occurs, and a wear can be early discovered. |
