| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a boom sprayer that prevents a folding part of a boom from easily bending caused by vibration or disturbance during the spray work of chemicals while easing impact of the respective booms from folding states to extending states. <P>SOLUTION: The boom sprayer includes: a first link 71 freely rotatably connected to a first boom 3; a second link 72 freely rotatably connected to a second boom 4; a link connecting shaft 73 which freely rotatably connects distal ends of the first link 71 and the second link 72; and a boom developing/folding control means 74 for performing developing control and folding control of the first boom 3 and the second boom 4 by rocking the first link 71 and the second link 72 so as to arrange the link connecting shaft 73 on a base end side of the second boom 4 in the case of the second boom 4 extends to the first boom 3, or to arrange the link connecting shaft 73 on a distal end side of the first boom 3 in the case of the second boom 4 folds to the first boom 3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
