| 摘要 |
PROBLEM TO BE SOLVED: To install a cargo lift for building demolition work without using lifting equipment.SOLUTION: In order to construct a steel tower 20 supporting a lifting platform 30 of a cargo lift for building demolition work by connecting plural column bodies 22 together, a lifting device 10 lifts each of the column bodies 22 up to the top of the steel tower 20 on an assembly stage. The lifting device 10 comprises a chain block 104 for lifting up the column body 22, a frame 110 which is fixed to the steel tower 20 in a height variable manner and supports the chain block at an upper side of the position where the frame 110 is fixed, movably in a lateral direction, a chain block 104 which is supported to the frame 110 at the upper side of the fixing position movably in the lateral direction and lifts up the column body 22, a cradle 108 which is fixed to the head of the column body 22 to be lifted up removably, and a chain block 106 which is supported to the cradle 108 and lifts up the frame 110 unfixed from the steel tower 20. |
