Patent ID: 8453818
Filing Date: 2013-06-04
Classification: F16D,F16H

Abstract:
1. An automatic transmission comprising: first and second clutches disposed adjacent, wherein each of the first and second clutches includes: the clutch drum of the second clutch comprises a first base portion having a cylindrical shape that surrounds the clutch drum of the first clutch and supports the clutch drum of the first clutch on an inner perimeter side of the clutch drum of the first clutch; and a second base portion having a cylindrical shape that is disposed more toward an outer perimeter side than the first base portion, and supports the cancel plate of the second clutch on the inner perimeter side of the cancel plate of the second clutch, the second base portion includes an end portion that intersects and runs through the clutch drum of the first clutch at a more outer perimeter portion than the hydraulic oil chamber of the first clutch, a restricting member is provided that restricts the clutch drum of the first clutch in a direction that the clutch drum is retained on the end portion of the second base portion running therethrough, and the cancel plate of the second clutch is contacted and supported by the clutch drum of the first clutch.