| 摘要 |
PROBLEM TO BE SOLVED: To provide a chemical spraying working vehicle capable of automatically lifting up and down so that a spraying boom makes no contact with an obstacle at turning.SOLUTION: The chemical spraying working vehicle includes: a center boom 43 for spraying chemical from a chemical tank 18 to an agricultural field; right and left side booms 44; a vertical cylinder 29 for vertically moving the right and left side booms 44; a tire steering angle sensor 46 for detecting steering angles of right and left wheels 12 and/or 13; a vehicle speed sensor 6 for detecting the rotation number of the wheels (12 or 13); and a control device 100 which automatically vertically move the side booms 44 at the outside of turning by detection of the turning angle by the tire steering angle sensor 46, and determines the rising speed of the side booms 44 based on the detection value of the vehicle speed sensor 6. |
