| 摘要 |
PROBLEM TO BE SOLVED: To prevent an automatic transmission 1 from becoming large as much as possible, the automatic transmission 1 having a counter mechanism 11 that includes a first multi-step planetary gear set PLa in which arbitrary inner peripheral side and outer peripheral side planetary gears PL1, PL2 adjacent to each other in a radial direction are disposed so as to be adjacent to each other in the radial direction in a state where a ring gear R1 of the inner peripheral side planetary gear PL1 and a sun gear S2 of the outer peripheral side planetary gear PL2 are not in an always connected state.SOLUTION: A first multi-step planetary gear set PLa is disposed, in an input shaft direction, on the side of a power source 4 with respect to a counter output part (counter output gear 14). |
