| 摘要 |
PROBLEM TO BE SOLVED: To allow change of a moving locus under horizontal.vertical moving, and exactly move a working table to a target position by the horizontal.vertical moving, in a high-lift working vehicle provided with three or more of driving shafts. SOLUTION: In a high-lift working vehicle, single or plural tip side booms 4 freely extendable or of a fixed length are provided, in order, to be freely turned up and down in a tip part 3b of a base end side boom 3 freely extendable and turned up and down, a working table 5 is attached to a tip part 4a of the tip side boom 4 in the tipmost side, and the vehicle is provided additionally with an extension driving means and a turn-up driving means for the base end side boom 3, and an extension driving means and a turn-up driving means for the tip side boom 4. When the drive means not used for horizontal.vertical moving are operated at the time of the horizontal.vertical moving, the moving of the working table 5 is controlled based on an operation speed and an operational direction provided after operation speeds and operational directions of the individually operated drive means are added to operation speeds and operational directions of the drive means used for the horizontal.vertical moving, in the high-lift working vehicle.
|
