| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve stability and responsiveness of clutch engaging force in minute engagement state in a clutch structure of a transmission. <P>SOLUTION: This clutch structure of the transmission is equipped with a drum arranged on a rotation shaft, a piston stored between an outer peripheral wall and an inner peripheral wall of the drum slidably along an axial direction, and a plurality of drive plates and driven plates of which engagement force is controlled by supply control of operation pressure to an oil pressure chamber of a piston back part, and a sliding part is provided on inner and outer peripheral parts of the piston. A seal part is disposed in the sliding part, and at least one of the seal parts is arranged so that the seal force is smaller on a clutch engagement position side (seal force; FA, FB) than on a clutch non-engagement position side (seal force; F1 to F4) within a sliding range of the piston. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
