Title:
SEISMIC ISOLATOR
Document Type and Number:
Japanese Patent JP2021165561
Kind Code:
A
Abstract:
To provide a seismic isolator with improved anti-buckling performance.SOLUTION: A seismic isolator comprises a laminated structure in which soft material layers and hard material layers are alternately arranged in a height direction. The soft material layers are laminated in the height direction to form a virtual block 120. An upper end surface F1 and a lower end surface F2 of the block 120 have the same area So. A central portion 123 of the block 120 is recessed inward in a width direction with respect to an upper end side portion 121 and a lower end side portion 122. The relationship between a volume Va of a solid defined by the upper end surface F1, the lower end surface F2 and a side surface connecting an outer edge e1 in a width direction of the upper end surface F1 and an outer edge e2 in a width direction of the lower end surface F2 and a volume Vb obtained by subtracting a volume V1 of the block 120 from the volume Va satisfies Vb/Va≥15%.SELECTED DRAWING: Figure 2
Inventors:
MORI TAKAHIRO
Application Number:
JP2020068179A
Publication Date:
October 14, 2021
Filing Date:
April 06, 2020
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
F16F15/04; E04H9/02
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Yasuyuki Komatsu
Kotaro Sakamoto
Mitsutsugu Sugimura
Yasuyuki Komatsu
Kotaro Sakamoto