Title:
免震装置
Document Type and Number:
Japanese Patent JP6909465
Kind Code:
B2
Abstract:
To provide a seismic isolator capable of reducing the characteristic frequency of the whole device while supporting the weight of the supported object.SOLUTION: A seismic isolator comprises: a cylinder 12 having a cylindrical shape with one closed end and installed on either the ground side or the supported object side; a piston 22 configured to be relatively displaceable in the cylinder axis direction in the cylinder 12 and installed on the other side of the ground side and the supported side; and a fluid flow channel 40 provided between the cylinder 12 and the piston 22 in a radial direction for communicating the inside of the cylinder 12 with the outside of the cylinder 12, and working fluid composed of viscous fluid is introduced into the cylinder 12 at a predetermined pressure while discharging it to the outside of the cylinder 12 through the fluid flow channel 40.SELECTED DRAWING: Figure 2
Inventors:
Manabu Yamada
Masaki Hayatsu
Hiroki Komatsu
Shizuo Imaoka
Koichi Kajiwara
Eiji Sato
Masashi Yasuda
Isao Nemoto
Takuya Nemoto
Hideo Kase
Masaki Hayatsu
Hiroki Komatsu
Shizuo Imaoka
Koichi Kajiwara
Eiji Sato
Masashi Yasuda
Isao Nemoto
Takuya Nemoto
Hideo Kase
Application Number:
JP2017113776A
Publication Date:
July 28, 2021
Filing Date:
June 08, 2017
Export Citation:
Assignee:
National Research Institute for Earth Science and Disaster Prevention
School corporation Josho Gakuen
Nemoto Planning Industry Co., Ltd.
School corporation Josho Gakuen
Nemoto Planning Industry Co., Ltd.
International Classes:
F16F15/023; E04H9/02; F16F9/02; F16F9/32; F16F9/346
Domestic Patent References:
| JP61142932U | ||||
| JP2014077386A | ||||
| JP2016107358A | ||||
| JP2002106632A | ||||
| JP3272345A | ||||
| JP11264445A |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office