| 摘要 |
PURPOSE:To efficiently assemble maximum legs at low cost by a method in which leg blocks to be newly joined are connected to the lower side of already assembled legs by utilizing the elevator of an elevating base, and completely assembled legs are lifted up. CONSTITUTION:A base 11 is provided below the first already-assebmled leg 1 and lifted up by means of an elevator B on a base A. Then, a base 12 is provided below the base A, brought down by the elevator B, and placed on the base. The leg 1 is lifted up by the elevator B, a leg block 2 to be newly assembled is pulled into below the leg 1, the leg 1 is slightly lowered by the elevator B, and then the lower end of the leg 1 is joined with the upper end of the leg block 2. The legs 1 and 2 are lifted up by the elevator B, the leg block 3 is retracted by a truck and joined likewise, the blocks of lowermost part of the legs are joined, the base 14 is set below the legs, a structure body A is lifted up, and then the base 12 is removed. |
