| 摘要 |
PROBLEM TO BE SOLVED: To solve the imbalance between supporting forces in the horizontal direction and the vertical direction of a three-dimensional base isolation device. SOLUTION: Single laminated rubber 3 or a sliding support, or an elastic sliding support as a horizontal base isolation mechanism and a plurality of air springs 4 as a vertical base isolation mechanism are integrated with each other through the medium of a frame 5 having high rigidity. The air spring has a vibration damping function by an auxiliary tank 4b and an orifice 4c, and the three-dimensional base isolation device is provided with a vertical vibration damping mechanism 6 used for damping the vibration in the vertical direction of the air spring. Then the three-dimensional base isolation device is provided with a horizontal deformation restraint mechanism 7 which restraints deformation of the air spring in the horizontal direction while permitting vibration of the air spring in the vertical direction. COPYRIGHT: (C)2008,JPO&INPIT
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