| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lifting tool of a concrete block for safely and surely performing work even in a state of particularly easily receiving an influence of rocking such as on a crane ship when loading and unloading the concrete block by a crane. <P>SOLUTION: The lifting tool of the concrete block includes: a metallic top frame 1 of a polygonal shape; slinging work wires 2 for the concrete block for lifting the concrete block B by being slung around girder materials 1a extended to the top frame 1; crane hook wires 3 each installing a weight on one end and slinging the other end around a hook F of the crane; leg bodies 4 each fixed in the vertical direction to the top frame 1 to each corner 1b of the top frame 1, forming a hollow cylindrical shape and slidably indwelling the weight installed on one end of the crane hook wire 3 in its inside; and a guide plate 6 for forming a shape of an outer surface in the same shape as a part of the side of the concrete block and fixed in the vertical direction with respect to the top frame 1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
