| 摘要 |
PROBLEM TO BE SOLVED: To reduce bending of a loading vehicle so as to improve cargo- handling work efficiency by repeatingly performing exact cargo-handling work. SOLUTION: In a loading vehicle provided with a mast device, this mast device is constituted of a fixed mast 7 and a movable mast 8. In the movable mast 8, a first beam 11 and a second beam 12 are fixed to the vicinity of a connecting part of a rod 15 of a hydraulic cylinder and the movable mast 8 and to a location where the movable mast 8 reaches a maximum lift and a part in which the movable mast 8 and the fixed mast 7 are overlapped, respectively. In the movable mast 8, a third beam 13 is fixed so as to overlap with the second beam 12 at the location where the movable mast 8 reaches the maximum lift and materials with high hardness are used as materials of a pair of load wheels of the loading vehicle.
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