| 摘要 |
<p>PURPOSE: To reduce the use of a steel valve block by arranging at least one hydraulic member on the outside wall of a valve accommodating member, and reducing the weight of the whole hydraulic unit. CONSTITUTION: The left side boundary 14 of a valve accommodating member 13 is arranged on a hydraulic circuit board 15 having hydraulic channels 23 formed with elliptic openings 21, for example. The circuit board 15 is closed by a cover 16. Valve coils 17-20 are extended into a collar shape over the valve accommodating member 13. A check valve 22 is located on the outer wall section of the valve accommodating member 13. When a pressure exceeding the pressure in the elliptic openings 21 is formed in the channels 23, a metal sheet 28 made of a spring steel is changed in the direction of an arrow 29, the valve surface 30 of the metal sheet 28 is separated from a valve seat 31 which is part of the valve accommodating member 13, and a pressure fluid flows into a working chamber 26 and a channel 27 from the channels 23 via the recess 32 of a resilient member 28. The resilient member 28 is fixed to the side wall 33 of the recess of the wall of the valve accommodating member 13.</p> |
