| 摘要 |
PURPOSE: A device for supporting a structure is provided to improve workability by securely and simply lifting to an accurate position. CONSTITUTION: A supporter(21) is composed of: an upper water pressure(22) as a first water pressure member, a lower water pressure member(23) as a second water pressure member, a driving unit(24) for moving the lower water pressure member(23), a cover(25), a base member(26) and a counter force storage member(27). And the applied power is securely outputted at an accurate rotation ratio because the power input from one driving axis(52) on the supporter is delivered to one transportation screw(44) through a gear of an output side after delivering to two middle gear elements through the gear(63) of an input side. Therefore, the lower water pressure member(23) is accurately moved, and an upper structure is lifted to an accurate position.
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