| 摘要 |
PROBLEM TO BE SOLVED: To provide a lifting tool having a pantograph mechanism, capable of being engaged with an opening of a frame for lifting a work, doing work with only one lifting tool regardless of the size of the opening, and easy in operating an open-stopping hook. SOLUTION: This lifting tool includes upper and lower links and a latching pawl for engagement with the lower link by being inserted into a cylinder opening. The lower link 7 is of V shape, and a top 7a of the V-shaped link is jointed by a lower joint shaft 10. In the lower joint shaft 10, a positioning lever 14 having a positioning plate 16 is jointed at its lower end. In an upper joint shaft 6, the lower joint shaft 10 is engaged with its lower end. A lifting element 17 having an open-stopping hook 18 for retaining the pantograph mechanism in a contraction condition is rotatably attached. COPYRIGHT: (C)2004,JPO
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