| 摘要 |
PROBLEM TO BE SOLVED: To provide a base isolation facility for a wooden house of which the total house construction cost is not expensive and which is easily executed. SOLUTION: The bottom part of pier rubber 11 composed of a material such as rubber or polyurethane is fixed to a foundation 10. A metallic basin for under use 14 which has slight upward inclination from the center to the edge of the periphery is fixed to the upper part of the pier rubber 11, a plurality of metallic balls 15 are put inside, a metallic basin 13 is laid as a cover, and the upper metallic basin 13 is fixed to a base 12 (a lower part).
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