| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller for a working vehicle capable of preventing occurrence of action of a boom being contrary to worker's intention for operation when performing derricking and elongation movements simultaneously. SOLUTION: In this working vehicle 1 provided with the boom 10 provided to derrick, and extend and contract freely relative to a vehicle body 2, a side regulation line L5 for partitioning a scope A of allowable action is vertically extended and is set in advance, and this controller lets the boom 10 fall down and turn down continuously by combining contraction movements of the boom 10 to move a tip part 10a of the boom 10 downward along the side regulation line L5 when the boom 10 falls down and is turned down and the tip part 10a of the boom 10 attempts to cross the side regulation line L5. This controller controls the boom 10 to stop its operation when elongation and falling-down and turning-down movements of the boom 10 are simultaneously performed and the tip part 10a of the boom 10 attempts to cross the side regulation line L5. COPYRIGHT: (C)2008,JPO&INPIT
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