| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray boom-supporting apparatus of a chemical-spraying work vehicle, which can reduce swings caused by loads from the front and rear portions, when side booms are opened in the lateral horizontal direction. SOLUTION: This spray boom-supporting apparatus of the chemical-spraying work vehicle is characterized by rotatably connecting the side booms 44 to both the right and left ends of a center boom 43 through brackets 33 having the vertically extended first rotation shafts 33b, respectively, disposing side boom-opening or closing hydraulic cylinders 30 for laterally extending the side booms 44 on the basis of the center boom 43, and stoppers 37 and springs 34 for energizing the side booms 44 in one direction on the second rotation shafts 33a in the brackets 33, respectively, connecting the hydraulic cylinders 30 to the center boom 43 through brackets 32 having the third rotation shafts 32a, respectively, and disposing stoppers 36 and springs 35 for energizing the hydraulic cylinders 30 in one direction to the brackets 32, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
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