| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel automatic transmission which can be made compact in size in a direction vertical to an axial direction.SOLUTION: A third carrier C3 and a fourth sun gear S4 are constantly connected to an input part (input shaft 3), an output part (output gear 7) is constantly connected to a fourth ring gear R4, a first carrier C1 is constantly connected to a third sun gear S3, a second sun gear S2 is constantly connected to a third ring gear R3, and a first ring gear R1 is constantly connected to a second ring gear R2. There are arranged: a first clutch CL1 which connects and disconnects the second carrier C2 and the fourth carrier C4; a second clutch CL2 which connects and disconnects the third ring gear R3 and the fourth carrier C4; a third clutch CL3 which connects and disconnects the first carrier C1 and the second carrier C2; a first brake B1 which connects and disconnects the first ring gear R1, the second ring gear R2 and a transmission case 2; and a second brake B2 which connects and disconnects a first sun gear S1 and the transmission case 2. |
