| 摘要 |
PROBLEM TO BE SOLVED: To provide a boom sprayer capable of surely maintaining a boom in parallel to an agricultural land without requiring complex control. SOLUTION: This boom sprayer is installed at a traveling device, supports a nozzle pipe 40 equipped with multiple nozzles 41 for spraying a medicine, and includes a boom 30 extending in left and right directions of the traveling device, and includes a boom-supporting device 1 for supporting the boom 30 horizontally relative to the traveling device. The boom-supporting device 1 includes a trapezoidal link 3 having almost a trapezoidal shape and consisting of a node as an upper side, a node as a lower side and a pair of nodes as slanting sides for joining the left and right end parts of the upper side with the left and right end sides of the lower side at left and right, respectively. The boom 30 can freely swing as a pendulum against the traveling device through the trapezoidal link by fixing the node as the upper side of the trapezoidal link at the traveling device side, and the node as the lower side and fixed at the boom 30 side. COPYRIGHT: (C)2008,JPO&INPIT
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