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    • 4. 发明公开
    • EARTHQUAKE ISOLATION DEVICE
    • 震装置
    • EP2039958A4
    • 2017-02-15
    • EP07767685
    • 2007-06-27
    • OILES INDUSTRY CO LTD
    • TAKENOSHITA YUKINORIHOSONO YUKIHIRO
    • F16F15/04E04H9/02F16F1/40
    • E04H9/022F16F1/40F16F7/08
    • [Problems] To provide a seismic isolation device, even if a relative height between friction plates, which are laminated in a hollow part of a laminated rubber body, and the laminated rubber body changes at a deformation of the laminated rubber body, which prevents allophone, vibration and shock from inside of the seismic isolation device (laminated rubber body), resulting superiority in durability, safety, and amenity. [Means for Solving Problems] The seismic isolation device comprising: a laminated rubber body 2 in which elastic material layers 2b and rigid material layers 2c are vertically laminated one after the other; a plurality of friction plates 3 vertically laminated so as to be horizontally slidable and wholly enclosed in a hollow part 2a vertically penetrating the laminated rubber body; pressurizing means 4A, 4B arranged at a topmost portion and/or at a lowermost portion of the laminated friction plates and vertically adding pressure; and a friction reducing means 5 arranged between each outer peripheral portion of the plurality of the friction plates and an inner peripheral surface of the hollow part of the laminated rubber body. Even if a relative height of the friction plates and the inner peripheral surface of the hollow part of the laminated rubber changes, the friction reducing means smoothens the slide between them.