VIBRATION REDUCTION DEVICE AND BASE ISOLATION STRUCTURE

Japanese Patent JP2015169317

A

PROBLEM TO BE SOLVED: To provide a vibration reduction device and a base isolation structure including the vibration reduction device realizing a superior vibration reducing performance to enable a displacement to be efficiently and positively restricted while absorbing vibration energy acted on a building.SOLUTION: This invention relates to a vibration reducing device A for reducing a relative vibration between the two members that vibrate from each other comprising: a cylinder 1 arranged with one end 1a being connected to one member; a piston 5 for defining an inner part of the cylinder 1 into a first partition chamber 3 and a second partition chamber 4; a piston rod 2 connected at one end 2b to the piston 5, extended outside in a direction toward an axial line O1 of the cylinder 1, and connected to the other member at the other end 2a to be arranged; a connecting pipe 6 communicating the first partition chamber 3 and the second partition chamber 4; and an orifice 7 arranged at the connecting pipe 6, and working fluid S is charged in the first partition chamber 3, the second partition chamber 4, and the connecting pipe 6.

ISODA KAZUHIKO

JP2014046892A

September 28, 2015

March 10, 2014

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SHIMIZU CONSTRUCTION CO LTD

F16F15/023; E04H9/02; F16F9/49; F16F15/04

JPS5864513U	1983-04-30
JPH0559841A	1993-03-09
JP2004332837A	2004-11-25
JP2010007793A	2010-01-14
JPH05311920A	1993-11-22

奥田 浩文, 山中 昌之: "免震構造用変位依存型オイルダンパーに関する研究", ２００４年度大会（北海道）学術講演梗概集　Ｂ−２分冊, JPN6017038305, 31 July 2004 (2004-07-31), JP, pages 401 - 402, ISSN: 0003732154

Masatake Shiga
Tadashi Takahashi
Yoshifumi Saeki
Kenichi Kawabuchi

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