Patent ID: 9255627
Filing Date: 2016-02-09
CPC Classification: F16H

Claim Text:
1. An automatic transmission, comprising: a transmission case, an input shaft, and a plurality of planetary gear mechanisms disposed on the input shaft and housed in the transmission case, in which a gear stage is established by controlling a coupling relationship among elements of the plurality of planetary gear mechanisms, the input shaft, and the transmission case by using a plurality of clutches and a plurality of brakes, wherein said plurality of planetary gear mechanisms comprise: wherein the planetary gear mechanism α and the planetary gear mechanism γ are disposed adjacent to each other, wherein the clutches comprise: a clutch α capable of coupling a ring gear of the planetary gear mechanism γ to the input shaft; wherein the automatic transmission further comprises a thrust bearing α disposed between the sun gear of the planetary gear mechanism α and a sun gear of the planetary gear mechanism β; and wherein the automatic transmission further comprises a thrust bearing β disposed between a clutch hub of the clutch α and the transmission case.