| 摘要 |
<p>A second planetary gear unit PR and a clutch C 1 for outputting reduced speed rotation are located on one axial side of a first planetary gear unit PU, with an output unit located therebetween. A clutch C 2 which connects/disconnects an input shaft 2 to/from a sun gear S 2 of the planetary gear unit PU and a clutch C 3 connects and disconnects the input shaft to/from a carrier CR 2 of the planetary gear unit are on the other axial side of the first planetary gear unit PU. Compared with a transmission wherein a clutch C 2 or clutch C 3 is located between the second planetary gear unit PR and the planetary gear unit PU, the second planetary gear unit PR and the first planetary gear unit PU can be located closer together, and a member which transmits the reduced speed rotation can be made shorter. Further, compared to the case wherein, for example, the clutches C 1 , C 2 , C 3 are located together on one axial side, oil supply to their servos is simplified.</p> |
