| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide large torque transmission capacity by a small-sized clutch and an actuator, to unnecessitate a synchronizing mechanism, to unitize a gear, make the gear light and compact, and to reduce drag torque by a clutch part. SOLUTION: This gear is provided with an outer case 3, an inner case 5 arranged at the inside, a differential mechanism 17 connected to the case 5, friction clutches 9 and 11 arranged in series between the cases 3 and 5 and a cam mechanism 13 at the inside of the case 3, and the actuator 19 for fastening the friction clutches 9 and 11. When the friction clutches 9 and 11 are fastened, the cam mechanism 13 is operated by receiving transmission torque between the cases 3 and 5 to additionally fasten the friction clutches 9 and 11.</p> |
