| 摘要 |
PROBLEM TO BE SOLVED: To provide a base-isolated device that can prevent lifting even if a lifting prevention device is not installed newly and enable installation of the machinery without removing cable in the case that the existing machinery with cable is made to be seismic isolating. SOLUTION: This base-isolated device installs an inner rail 33 of a recessed shape in cross section providing an arcuate long hole 35 along the lengthwise direction of an edge side (edge side direction) on the corresponding position to both edge sides installed vertically from the bottom and an outer rail 32 of a recessed shape in cross section providing an arcuate long hole 35 along the lengthwise direction of edge (edge side direction) on the corresponding position to both edges installed vertically from the bottom so that each bottom is in a position of ups and downs. And this device arranges a rail mechanism 40a that enables the relative movement of the inner rail 33 and the outer rail 32 by standing a roller 34 between arcuate long holes 35 of the inner rail 33 and the outer rail 32, and installs the plural rail mechanism 30a similar to the above rail mechanism 40a in a rectangular position to plural parallel rail mechanism 40a so as to be in parallel as well as ups and downs. COPYRIGHT: (C)2004,JPO
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