| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure a space for routing hydraulic hoses on a control valve support plate while both reducing the weight and enhancing the stiffness of the control valve support plate. <P>SOLUTION: The control valve support plate 22 is formed using a corrugated sheet alternately arranged with convex portions protruding upward 22A, 22B, 22F, 22G and concave portions protruding downward 22C, 22D, 22E, and a group of control valves 24 is mounted on the convex portions 22A, 22B, 22F of the control valve support plate 22. In this way, the high stiffness of the control valve support plate 22 can be obtained with the effect of corrugation shape even if a thin plate is used as the control valve support plate 22. And by placing hose connection parts 26A to 32A of control valves 26 to 32 constituting a multiple valve 25 in the concave portions 22C, 22E, a work space can be ensured around the hose connection parts 26A to 32A. In addition, each of the pilot hoses 33 can be extended along the concave portions 22C, 22E. <P>COPYRIGHT: (C)2012,JPO&INPIT |
