| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a horizontal deflection restraining device of a boom and a jib, capable of respectively restraining horizontal deflection to the boom and the tilt variable jib, in a working vehicle with the jib. <P>SOLUTION: This horizontal deflection restraining device has right-left outward arms 5 installed in a tip part of the boom 3 and right-left tension ropes 6 for connecting a tip part 5b of the respective outward arms 5 and a base end side proper place of the telescopic boom 3, and can restrain the horizontal deflection of both the boom 3 and the jib 4 by connecting the tip part 5b of the respective outward arms and jib lateral side surface parts of a position separated by the predetermined length to the jib tip side from the jib tilt center P by right-left connecting materials 8, and can smoothly tilt the jib 4 by pivoting a base end part 8a of the respective connecting materials 8 in a position overlapping with the jib tilt center P in a jib side view to the tip part 5b of the respective outward arms. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
