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1. (WO2018016425) LAYERED RUBBER SUPPORT

Pub. No.:    WO/2018/016425    International Application No.:    PCT/JP2017/025654
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Sat Jul 15 01:59:59 CEST 2017
IPC: F16F 15/04
F16F 1/40
Applicants: OILES CORPORATION
オイレス工業株式会社
Inventors: WAKE Tomotaka
和氣 知貴
KOCHIYAMA Osamu
河内山 修
NAKAMURA Takahito
仲村 崇仁
Title: LAYERED RUBBER SUPPORT
Abstract:
[Problem] To maintain the performance of a layered rubber support during ordinary earthquakes, while suppressing a decline in energy absorption performance during earthquakes of longer duration. [Solution] A layered rubber support 1 equipped with a layered rubber body 6 which has one or more through-holes 6a that vertically penetrate a layered rubber section obtained by alternatingly layering rubber layers 2 and reinforcing plates 3, and further equipped with one or more damping plugs (lead plugs) 9 sealed inside the through-holes, wherein:TS≥26×TR×D-0.5, given that the total thickness of the reinforcing plates is TS, the total thickness of the rubber layers is TR, and the diameter when the layered rubber body is cylindrical when seen from above, the length of one side when square when seen from above, or the length of a short side when rectangular when seen from above is D; and the inner-circumferential surfaces of the reinforcing plates contact or are near to the outer-circumferential surface of the damping plug. The thicknesses of the reinforcing plates may be identical, or some reinforcing plates may be thicker than other reinforcing plates.