| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lifting method and a lifting device for lifting/lowering a work floor on which heavy weight civil engineering machines and materials required for a large-scale vertical shaft excavation work can be loaded, by using a small-sized apparatus and without generating a lateral shake. <P>SOLUTION: A jack device is fixed to a support beam 2 held on a vertical shaft by a support column, a step rod 5 is supported by the jack device, the work floor is fixed to the lower end of the step rod 5, and by operating the jack device and moving the step rod 5 in the vertical direction, the work floor 6 is lifted/lowered. <P>COPYRIGHT: (C)2012,JPO&INPIT |
