Patent ID: 9441709
Filing Date: 2016-09-13
CPC Classification: F16H

Claim Text:
1. An automatic transmission, comprising; a housing; a plurality of planetary gear mechanisms rotatably supported by the housing to be coaxial to a rotation axis, the plurality of planetary gear mechanisms including a planetary gear mechanism positioned at a foremost row in a forward direction which includes a ring gear and a carrier, and a planetary gear mechanism positioned at a rearmost row in a rearward direction which includes a sun gear, a carrier and a ring gear, the ring gear of the planetary gear mechanism positioned at the foremost row being connected to the sun gear of the planetary gear mechanism positioned at the rearmost row; an input shaft rotatably supported by the housing to be rotatable about the rotation axis and being connected to the carrier of the planetary gear mechanism positioned at the foremost row; an output shaft rotatably supported by the housing to be rotatable about the rotation axis and being connected to the carrier of the planetary gear mechanism positioned at the rearmost row; a rotation member positioned radially outward of the ring gear of the planetary gear mechanism positioned at the rearmost row to be rotatable coaxially to the ring gear of the planetary gear mechanism positioned at the rearmost row; a brake selectively fixing the rotation member to the housing; a clutch selectively connecting the rotation member and a carrier of the planetary gear mechanism positioned forward of the planetary gear mechanism positioned at the rearmost row; and a dog clutch selectively connecting the ring gear of the planetary gear mechanism positioned at the rearmost row and the rotation member.