| 摘要 |
PROBLEM TO BE SOLVED: To provide a small, lightweight, and easily portable lifter. SOLUTION: In this multistage type lifter lifting/lowering a cargo by vertically extending/shrinking a boom having a plurality of tube members inserted in the telescopic form, the boom is provided with a base end tube member positioned in the lowermost position, a front end tube member, at least one intermediate tube member arranged between the base end tube member and the front end tube member, a cable continuously extended inside the boom internal space from the base end tube member to the front end tube member and connected to the lower end part of the front end tube member at the tip, and a winch for winding up the cable. The cable is extended while folded back from the base end tube member to the front end tube member via an upper fulcrum arranged in the upper end part of the tube member and a lower fulcrum arranged in the lower end part of the tube member.
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