| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic pipe for pilot pressure having high commonness of a part, superior in versatility, and easily coping with an increase-decrease in the number of pilot pipes. SOLUTION: This hydraulic pipe has a control valve 5 for controlling various actuators, a proportional pressure control valve 11 for supplying the pilot pressure according to an operation lever operation quantity to the control valve 5, a plurality of systems of pilot pipes 12, 13, 14 and 15 for connecting the control valve 5 and the proportional pressure control valve 11, a connecting member 30 for forming a pilot passage 31 inside, installed in the middle of the pilot pipes 12, 13, 14 and 15 with every one system, connecting the pilot passage 31 and communicating with the pilot passage 31 and an installing member 20 for installing the connecting member 30 by the prescribed number. The installing member 20 is desirably a plate shape. COPYRIGHT: (C)2004,JPO&NCIPI
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