| 摘要 |
<p>PURPOSE:To improve the durability of a multi-plate clutch by providing cam positioning recessed portions formed between cams and a positioning member that is put into the recessed portions and consists of a compressible multi-hole portion and an elastic member to conduct cam positioning. CONSTITUTION:As a cam 53 is positioned at a non-operation position up to predetermined resistance torque that a positioning member 55 possesses, the cam 53 is not operated even if dragging torque is generated at friction plates 47a, 47b, in the case of not being inputted into an electromagnet 67, and operation limit torque is not generated between output shafts. When electrification is made to the electromagnet 67 and a multi-palate clutch 47 is coupled, torque that is more than resistance torque is added to the positioning member 55, so the cam 53 is operated, and moves a carrier 35 axially, and the positioning member 55 is compressed between the positioning recessed portions 57a, 57b, and lubrication oil contained in multi-holes is squeezed out and fed to the friction plates 47a, 47b. Accordingly, the durability of the multi-plate clutch 47 is improved, and a predetermined differential limit characteristic can be retained.</p> |
