| 摘要 |
PURPOSE:To improve safety of work in the sloped land or the like by providing tumble preventing outriggers in both sides of a car body and operating one outrigger in the unloading side of the outriggers to a working condition connected to the ground in accordance with laterally directional dump operation of a load bed. CONSTITUTION:Angular cylindrical frames 13 are mounted to both sides of a car body 2, and outriggers 12 are provided to both sides of this cylindrical frame. A pivotally supported connection part A, determining the dump direction of a load bed 5, can be controlled by selectively handling a selector leverl 8. While feed and discharge operation of working oil in a cylinder 6 is controlled by a valve V, and this valve V can be selected by a control lever 9. Outrigger cylinders 15 are connected to this valve V, and an open-close valve V1 is interposed in a flow passage (a). This valve V1 can be selectively controlled interlocking to operation of the lever 8 so that the flow line (a) may be communicated to the outrigger cylinder 15 in the unloading side. |
