| 摘要 |
PROBLEM TO BE SOLVED: To provide a working vehicle which secures safety in traveling, naturally not only on road but also in checking, adjusting, and the like, and enables arbitrarily locking of the hydraulic mechanism of a working vehicle. SOLUTION: The working vehicle is installed as capable of vertically lifting and lowering with a hydraulic driving means with a vehicle, and includes: an automatic plowing depth control for maintaining a prescribed plowing depth of the implement by a plowing depth-adjusting dial; an automatic level control for maintaining the level of the implement by an inclination-adjusting dial; a position control for adjusting the lifting and lowering vertically the position of the implement corresponding to the movement of a hydraulic lifting up and down lever; a back up control for lifting the implement automatically on backing the working vehicle by turning on and off of a back up switch; and a draft control for reducing the load acting on the implement by a draft-adjusting dial, and so on. Further, a hydraulic locking means, that inhibits the hydraulic operation of the working vehicle, and a hydraulic locking switch, capable of switching the hydraulic locking means as a locked state and lock-released state are provided. COPYRIGHT: (C)2009,JPO&INPIT
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