| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide hydraulic piping by an element capable of absorbing positional relationship and a distance instead of a hydraulic hose. <P>SOLUTION: In the hydraulic piping 1 of a bend link, a moving side link shaft 11 includes circumferential pipelines 111, 112, 114 and 115 to which the supply port or discharge port of a hydraulic cylinder 21 is connected and one end of the built-in bridge pipelines 141 and 142 of a moving side link node 14 is connected. An intermediate link shaft 12 includes circumferential pipelines 121, 122, 124 and 125 to which the other end of the built-in bridge pipelines 141 and 142 of the moving side link node 14 is connected and one end of the built-in bridge pipelines 151 and 152 of a fixed side link node 15 is connected. Then, a fixed side link shaft 13 includes circumferential pipelines 131, 132, 134 and 135 to which the other end of the built-in bridge pipelines 151 and 152 of the fixed side link node 15 is connected and the supply end or discharge end of the fixed piping of an arm or an attachment body is connected. It is formed by communicating the circumferential pipelines and the bridge pipelines with each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
