| 摘要 |
<p>PURPOSE:To achieve speedy response and reduce electric power consumption by installing a frictional clutch which is tightened by an electromagnet and a cam which develops an operating power for the clutch by the force acting on a flyweight. CONSTITUTION:A pilot clutch (frictional clutch) 77 is arranged between the differential case 25 and the ring 75 of a differential gear device, and an anmature 79 and a flyweight 81 are arranged. The armature 79 is spline- connected with the cam ring 75, and a cam 85 for generating a thrust force 83 by the centrifugal force of the flyweight 81 is formed. An electromagnet 89 is arranged on the differential case 25. When the electromagnet 89 attracts the armature 79, the pilot clutch 77 is connected. The cam 85 is operated by the centrifugal force of the flyweight 81, and the pilot clutch 77 is connected. Accordingly, a large clutch torque is obtained, and speedy response is achieved, and the consumed electric power is reduced.</p> |
