| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a driving force distributing device capable of largely reducing drag torque, capable of maintaining a stable excellent friction characteristic and durability over a long period without applying expensive surface treatment, and capable of also preventing a variation in a clutch transmission torque characteristic. <P>SOLUTION: This driving force distributing device 1 has an electromagnet 70 moving toward a pilot clutch 50 by magnetic attraction force acting between a wall part 23a of a coupling case 20 and itself, and a pressing member 53 for adjusting operation force of the pilot clutch 50 in response to the movement of the electromagnet 70. The pressing member 53 is pushed back to a predetermined initial position to the wall part 23a of the coupling case 20 in response to abrasion of the pilot clutch 50 when an electric current is not carried to the electromagnet 70, and is adjusted so that a pressing surface of the pressing member 53 and an inner end surface of a step height wall part 23 of the coupling case 20 coincide with each other. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
