| 摘要 |
PROBLEM TO BE SOLVED: To provide an economically advantageous high lift crane vehicle having the function of performing crane work in a high lift with easiness of movement by partially remodeling the working machine of a highly versatile hydraulic backhoe. SOLUTION: This high lift crane vehicle comprises a boom 13 axially supported at the base end by the rotating frame of a super structure 12 supported by a lower structure 11 and having a guide sheave 37 arranged on the back part; a boom cylinder 15 arranged between the rotating frame and the boom 13; an arm 16 pivotally supported at the tip part of the boom 13 and comprising guide sheaves 24 and 38; an arm cylinder 17 arranged between the boom 13 and the arm 16; a crane mechanism 20 suspended at the end of the arm 16; and a winch 35 set on the super structure. Two or more wire ropes 41 and 42 operated by the winch 35 are laid around the guide sheaves, at least one of them is fixed to the crane mechanism 20 and used as a lifting rope, and the excavating bucket 30 of the crane mechanism is liftably suspended by the lifting rope and the other rope.
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