| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a clutch unit of an automatic transmission which is compact in axial direction. <P>SOLUTION: The automatic transmission is adapted to overlap a third clutch C3 and a four clutch C4 including hydraulic servos 20, 40 and cancel oil chambers 28, 48, respectively, in axial direction and then to dispose in position distinct from radial direction. A cancel plate 25 composing the cancel oil chamber 28 of the third clutch C3 is fitted on a stepped part 53 of a clutch drum of the four clutch C4 while simultaneously a cancel plate 45 composing the cancel oil chamber 48 of the four clutch C4 is disposed to prevent removal by a snap ring 30. Since a return spring 26 arranged in the cancel oil chamber 28 of the third clutch C3 is large in urged force as compared with a return spring 46 arranged in the cancel oil chamber 48 of the four clutch C4, a clutch drum 42 of the four clutch C4 is positioned by always abutting to a snap ring 50. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
