| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic transmission that can be compact and improved in controllability. SOLUTION: The automatic transmission comprises a planetary gear PR and a clutch C3 arranged on one side (on the right side as shown in Fig.) in the axial direction of a planetary gear unit PU for outputting decelerating rotation, and a clutch C1 and a clutch C2 arranged on the other side (on the left side as shown in Fig.) in the axial direction of the planetary gear unit PU for engaging/disengaging the rotation of an input shaft 2 to be input to a sun gear S2 and for engaging/disengaging the rotation of the input shaft 2 to be input to a carrier CR2, respectively. As compared with the case that the clutch C1 and the clutch C2 are arranged between the planetary gear PR and the planetary gear unit PU, the planetary gear PR and the planetary gear unit PU can be arranged closer to each other and a shorter transmission member 30 is required for transmitting decelerating rotation. As compared with the case that the clutches C1, C2, C3 are centralized and arranged on one side, e.g., an oil path is more simply constructed. COPYRIGHT: (C)2008,JPO&INPIT
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