| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle crane with an elevation driven swivel post 5 allowing free travel of a vehicle without contacting beams or shelves of buildings by reducing the storage height of a crane boom 6 in a vehicle travelling condition. SOLUTION: A winch device 13 not to extend upward from a boom upper face 6c is mounted at a base end 6b of the crane boom 6.
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