| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a clutch piston capable of suitably acting depending on fluid pressure regardless of a structure of transferring it to a side of a fluid pressure chamber. <P>SOLUTION: The clutch piston 2 of the present invention includes a piston principal body 5 for axially travelling inside a clutch cylinder 3 by the fluid pressure within a first fluid pressure chamber R1 to operate the clutch, and seal members 6, 7 provided in the inner and outer circumferential ends of the piston principal body 5 to seal a portion between the clutch cylinder 3 and the piston principal body 5. The seal members 6, 7 comprise first and third seal lips 6b, 7b provided on a side of a fluid pressure camber R to seal the fluid pressure camber R, and a second and fourth seal lips 6c, 7c provided on a side of an outside space S to seal a portion between the clutch cylinder 3 and the piston principal body 5 on the side of the outside space S. <P>COPYRIGHT: (C)2011,JPO&INPIT |
