| 摘要 |
PROBLEM TO BE SOLVED: To prevent a working machine from being broken or handling of a ground work vehicle from becoming unstable because an operation to lift the working machine is neglected to drag it while being grounded on the ground, when traveling on a street and a parking lot by the ground work vehicle.SOLUTION: Working machine lifting/lowering control of a ground work vehicle is characterized in that an agricultural machine liftably mounting a working machine 17 is provided with location recognition means 160 for identifying whether the present location of a machine body is a work place or the place other than that and lowering detection means 161 for detecting the lowering lower than a grounding or a predetermined height of the working machine 17, and controls not to travel even if the traveling start operation is performed when being in a non-working state where the location recognition means 160 recognizes any place other than the work place and the grounding detection means 161 detects the lowering in the start of traveling.SELECTED DRAWING: Figure 5 |
