| 摘要 |
PURPOSE:To aim at the promotion of miniaturization and lightweightiness as well as a reduction in both of space and weight, by making those of a motor pump as a hydraulic pressure source and the like into joint use with a power steering device via a directional control valve (selector). CONSTITUTION:A pressure oil feed passage 13 leading from a motor pump 11 is branched off to a feed passage 14 leading to a cab tilt device 1 via a directional control valve 12 and another feed passage 15 leading to a control valve 10a turning to a control part for a power steering device 10, while pressure oil is fed to either of the passages 14 and 15 in a selective manner by this directional control valve 12. In addition, return passages 16 and 17 from each of these device 1 and 10 are connected to the midway of a return passage 19 connected to a tank 18 from the directional control valve 12 via the motor pump 11. |
