SPRAY CONTROL APPARATUS FOR SPRAY WORK VEHICLE

PROBLEM TO BE SOLVED: To uniformalize the spray concentration of a liquid chemical to be sprayed to a left and right spray area when a spray work vehicle possessing left and right side booms is steered on a farm field end or the like as the booms are spread. SOLUTION: A riding type control machine 1 is provided with a center boom 19 having a spray nozzle, the left and right side booms 17, 17 and a front wheel steering angle sensor 28 for detecting the steered angle of the front wheel. A flow control valve for adjusting the spray quantity is provided on each of the left and right side booms 17, 17. When the riding type control machine 1 is turned (B) to left or right, the opening of the flow control valve is adjusted corresponding to the steered angle by a controller to decrease the spray quantity in the turning inside Z1 and to increase the spray quantity in the turning outside Z3. COPYRIGHT: (C)2006,JPO&NCIPI