| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hydraulic actuator capable of complying with miniaturization of axial directional dimensions. <P>SOLUTION: A hydraulic chamber S<SB>1</SB>is formed between a piston 1 capable of being movable in the axial direction inside a housing with hydraulic pressure and a plate 2 opposed to the piston 1 in the axial direction, and a seal lip 3 which extends to the hydraulic chamber S<SB>1</SB>side as if to be inclined after it is provided in the plate 2, sticks fast to the end face 1a of the piston 1. The seal lip 3 keeps a contacting state with the end face 1a of the piston 1, while transforming the inclined angle in accordance with the transformation of the axial directional distance of the plate 2 and the piston 1 with the pressure of the hydraulic chamber S<SB>1</SB>in a reciprocating movement within a predetermined stroke of the piston 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
