| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydraulic working machine having a hydraulic circuit that can be used for emergency escape of other machines with hydraulic working equipment mounted on the hydraulic working machine and enables emergency escape of the own machine by hydraulic pressure supply from other machines. <P>SOLUTION: In a hydraulic working machine having a hydraulic circuit 20 for operating a traveling device and working equipment, the hydraulic circuit is provided with a supply pipe connecting circuit 31 branched from between a hydraulic pump 21 and a hydraulic control unit 22, a supply channel selector valve 32 installed between the supply pipe connecting circuit and the hydraulic control unit, a check valve 33 installed in the piping between a branch point of the supply pipe connecting circuit and the hydraulic pump, a return pipe connecting circuit 34 branched from between a tank 23 and the hydraulic pump 21, a return channel selector valve 35 installed between the return pipe connecting circuit and the hydraulic pump, and a hose connection part 19 for connecting a hydraulic hose to the supply pipe connecting circuit and the return pipe connecting circuit through a self seal coupling 17. <P>COPYRIGHT: (C)2012,JPO&INPIT |
