Title:
SEISMIC ISOLATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/075685
Kind Code:
A1
Abstract:
Provided is a seismic isolation device that has excellent buckling performance and endurance without losing the required seismic isolation performance. The seismic isolation device is provided with a layered structure (10) made by arranging hard materials (11) and soft materials (12). The layered structure (10) is sectioned into terminal regions (R1), a center region (R2), and intermediate regions (R3). The respective hard materials of a terminal region (R1), the center region (R2), and an intermediate region (R3) are a terminal hard material (111), a center hard material (112), and an intermediate hard material (113). The axial positional relationship of a widthwise outer edge (111e) of the terminal hard material (111), a widthwise outer edge (113e) of the intermediate hard material (113), and a widthwise outer edge (112e) of the center hard material (112) is [widthwise outer edge (111e) > widthwise outer edge (113e) > widthwise outer edge (112e)], and the ratio (W1/W2) of the width W2 between the widthwise outer edges of the center hard material (112) to the width W1 between the widthwise outer edges of the terminal hard material (111) is 0.6 ≤ (W2/W1) ≤ 0.97 or less.
Inventors:
MORI TAKAHIRO (JP)
Application Number:
PCT/JP2019/039527
Publication Date:
April 16, 2020
Filing Date:
October 07, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
F16F1/40; F16F15/04; E04H9/02
Foreign References:
| JPS6429539A | 1989-01-31 | |||
| JP2014047885A | 2014-03-17 | |||
| JPH09126272A | 1997-05-13 | |||
| JPS6429538A | 1989-01-31 | |||
| JPH11141180A | 1999-05-25 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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