| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a working machine having a suspended grapple that can incline the grapple at a predetermined angle, which is normally configured in such a manner that the shaft core of the grapple is oriented in a vertical direction. <P>SOLUTION: A pair of swing prevention hydraulic cylinders F22 and B23 are arranged with an arm pin 51 at the center between them. A pair of swing prevention hydraulic cylinders L24 and R25 are arranged with a swing pin 52, oriented in the direction of orthogonally crossing the arm pin 51, as the center between them. A switching valve 65 is interposed between the bottom chambers of the swing prevention hydraulic cylinders F22 and B23. A switching valve 67 is interposed between the bottom chambers of the swing prevention hydraulic cylinders L24 and R25. When a switch A72 and a switch B73 are turned on, the bottom chambers of the respective cylinders are shut off by the switching valves 65 and 67, and a grapple 10 is held in a state of being inclined at a predetermined angle. <P>COPYRIGHT: (C)2012,JPO&INPIT |
