ENGAGEMENT-TYPE STIFFNESS-VARIABLE WIND-RESISTANCE VIBRATION ISOLATION SUPPORT SEAT

To provide an engagement-type stiffness-variable wind-resistance vibration isolation support seat which can improve the horizontal stiffness of a vibration isolation layer, is easy in use by dispensing with the exchange of a component, and can largely reduce a maintenance expense.SOLUTION: An engagement-type stiffness-variable wind-resistance vibration isolation support seat comprises a rubber vibration isolation support seat and a wind-resistance stiffness adjuster. The rubber vibration isolation support seat is arranged between an upper structure and a lower structure of a vibration isolation layer, and the wind-resistance stiffness adjuster is arranged between an upper connection plate and a lower connection plate, and arranged around the rubber vibration isolation support seat. The wind-resistance stiffness adjuster comprises a horizontal slide engagement plate fixed to the upper connection plate, a vertical guide groove formed at the lower connection plate, a bird nozzle plate, a leaf spring set and a stiffness adjustment bolt. The bird nozzle plate can slide in a vertical direction along the vertical guide groove, and an upper hook-shaped structure of the bird nozzle plate is pasted to the horizontal slide engagement plate, and hung thereto.SELECTED DRAWING: Figure 2 【課題】免震層の水平剛性を向上させ、かつ部品を交換する必要がなく使用しやすく、メンテナンス費用を大幅に削減できる噛合式剛性可変耐風免震支持座を提供する。【解決手段】本発明は、ゴム免震支持座と、抗風剛性調整器とを備え、ゴム免震支持座は、免震層の上部構造と下部構造との間に設けられ、抗風剛性調整器は、上部接続板と下部接続板との間に設けられると共に、前記ゴム免震支持座の回りに設けられる。抗風剛性調整器は、前記上部接続板に固定された水平スライド噛合板と、前記下部接続板に設けられた縦方向ガイド溝と、バーズノズル板、皿ばね組及び剛性調整ボルトを備える。バーズノズル板は、縦方向ガイド溝に沿って上下に摺動することができ、バーズノズル板の上部フック状構造は、さらに前記水平スライド噛合板に貼り合せて引っかけられる。【選択図】図２