JPH072888Y2 - Restoring force adding device on base-isolated floor - Google Patents

Restoring force adding device on base-isolated floor

Info

Publication number
JPH072888Y2
JPH072888Y2 JP13112988U JP13112988U JPH072888Y2 JP H072888 Y2 JPH072888 Y2 JP H072888Y2 JP 13112988 U JP13112988 U JP 13112988U JP 13112988 U JP13112988 U JP 13112988U JP H072888 Y2 JPH072888 Y2 JP H072888Y2
Authority
JP
Japan
Prior art keywords
restoring force
floor
adding device
seismic isolation
force adding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP13112988U
Other languages
Japanese (ja)
Other versions
JPH0251601U (en
Inventor
義勝 三浦
薫 上野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP13112988U priority Critical patent/JPH072888Y2/en
Publication of JPH0251601U publication Critical patent/JPH0251601U/ja
Application granted granted Critical
Publication of JPH072888Y2 publication Critical patent/JPH072888Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案は免震床における復元力付加装置に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a restoring force adding device for a seismic isolated floor.

〔従来技術〕[Prior art]

地盤上に免震装置を介して支える免震床においては、地
震によって移動した床を元に戻す復元力付加装置が採用
されている。このような復元力付加装置としては、第4
図に示すように、免震床とともに移動可能となった支承
部aを四方から配したスプリングbに連結したものが採
用されている。地震によって支承部aが移動した場合、
スプリングbによって支承部aを元の位置に復帰させる
ものである。
In a base-isolated floor that is supported on the ground via a seismic isolation device, a restoring force adding device that restores the floor moved by the earthquake is adopted. As such a restoring force adding device,
As shown in the figure, a support part a that is movable together with the seismic isolation floor is connected to springs b arranged from four sides. If the bearing a moves due to an earthquake,
The spring b returns the support part a to its original position.

〔この考案が解決すべき課題〕[Problems to be solved by this device]

以上のような復元力付加装置であると、支承部aの周囲
に3〜4本のスプリングbを配するため、平面的なスペ
ースの確保が必要であることと、機構が複雑になってし
まうという課題があった。
In the case of the restoring force adding device as described above, since three to four springs b are arranged around the support part a, it is necessary to secure a planar space and the mechanism becomes complicated. There was a problem.

また、スプリングbの剛性変化がほぼ一定のために特定
の固有周期を持ち、ある振動数に対しては共振が避けら
れないという課題もあった。
In addition, there is a problem that the stiffness of the spring b is almost constant and has a specific natural period, so that resonance cannot be avoided at a certain frequency.

この考案は以上のような課題を解決するためになされた
もので、構造が簡易で小さいスペースでも設置でき、共
振が生じない免震床における復元力付加装置を提供する
ことを目的とする。
The present invention has been made to solve the above problems, and an object thereof is to provide a restoring force adding device for a base isolation floor which has a simple structure and can be installed even in a small space and does not cause resonance.

〔課題を解決するための手段〕[Means for Solving the Problems]

この考案における免震床における復元力付加装置は、一
本のコイルスプリングによって構成した復元具を使用す
るものである。この復元具の両端部は地盤と免震床に、
それぞれ水平方向に対し所定角度可変なように回転可能
に連結する。
The restoring force adding device for a seismic isolation floor according to the present invention uses a restoring tool composed of one coil spring. Both ends of this restoration are on the ground and seismic isolated floor,
Each of them is rotatably connected so that a predetermined angle can be changed with respect to the horizontal direction.

また復元具としてはコイルスプリングとダンパーを組合
せてもよい。
A coil spring and a damper may be combined as the restoration tool.

〔実施例〕〔Example〕

以下、図に示す一実施例に基づきこの考案を詳細に説明
する。
Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

図において1は地盤であって、この地盤1上に載置され
た免震装置2を介して免震床3が支えられている。免震
装置2は、例えば積層ゴムを使用したものが考えられ
る。
In the figure, reference numeral 1 denotes the ground, on which a seismic isolation floor 3 is supported via a seismic isolation device 2 placed on the ground 1. The seismic isolation device 2 may be made of laminated rubber, for example.

以上のような免震床3と地盤1間に復元具4が介在され
ている。第1図に示す実施例では、復元具4としてコイ
ルスプリング5が採用されており、その両端は免震床3
と地盤1にそれぞれ固定された取付具6、6に取付けら
れている。すなわちコイルスプリング5の両端には各々
球状の係止部7、7が形成されており、この係止部7は
各取付具6の孔を通して、取付具6内に嵌合されてい
る。係止部7は取付具6の孔から抜けないようになって
おり、コイルスプリング5は取付具6により水平方向に
対し、所定角度の範囲で自在に回転可能となっている。
The restoration tool 4 is interposed between the seismic isolated floor 3 and the ground 1 as described above. In the embodiment shown in FIG. 1, a coil spring 5 is adopted as the restoring tool 4, and both ends of the coil spring 5 are on the seismic isolation floor 3.
And the fixtures 6 fixed to the ground 1, respectively. That is, spherical engaging portions 7, 7 are formed at both ends of the coil spring 5, and the engaging portions 7 are fitted into the fixtures 6 through the holes of the respective fixtures 6. The locking portion 7 does not come out of the hole of the attachment 6, and the coil spring 5 is freely rotatable by the attachment 6 within a predetermined angle range with respect to the horizontal direction.

以上のような復元力付加装置において、地震によって免
震床3が動くと復元具4が伸びて、コイルスプリング5
の圧縮しようとする力によって復元力が付加され、免震
床3が元の位置に復帰する。コイルスプリング5は取付
具6、6によりコイルスプリング5は水平方向に対し自
在に角度を変えるため、スプリング5の復帰力はスムー
ズに免震床3に伝達される。
In the restoring force adding device as described above, when the seismic isolation floor 3 moves due to an earthquake, the restoring tool 4 extends and the coil spring 5
The restoring force is added by the force of compressing, and the seismic isolation floor 3 returns to its original position. Since the coil spring 5 can freely change its angle with respect to the horizontal direction by the attachments 6 and 6, the restoring force of the spring 5 is smoothly transmitted to the seismic isolation floor 3.

第2図に示すのは、他の実施例であって、復元具4とし
てコイルスプリング5とダンパー8を組合せたものを採
用した場合である。すなわち、上下の固定板9、9間に
ダンパー8を固定し、その外周を囲むようにコイルスプ
リング5を取付けたものである。固定板9、9の上下に
係止部7、7を突設し、取付具6、6に各々係止した場
合である。
FIG. 2 shows another embodiment, in which a combination of a coil spring 5 and a damper 8 is adopted as the restoration tool 4. That is, the damper 8 is fixed between the upper and lower fixing plates 9 and the coil spring 5 is attached so as to surround the outer periphery thereof. This is a case where the locking portions 7, 7 are provided on the upper and lower sides of the fixed plates 9, 9 so as to project and are respectively locked by the fixtures 6, 6.

このようなダンパー8を有する復元具4の場合である
と、ダンパー8によってスプリング5の揺動を押え、早
期に元の状態に安定させることになる。
In the case of the restoration tool 4 having such a damper 8, the swinging of the spring 5 is suppressed by the damper 8 and the original state is quickly stabilized.

〔考案の効果〕[Effect of device]

この考案は以上のような構成を有し、一本のコイルスプ
リングから成る復元具を地盤と免震床間に介在させ、復
元具の両端部は地盤と免震床に、それぞれ所定角度の範
囲内で水平方向に角度可変なように回転可能に接合した
ため、簡易な構成で小さなスペースで設置でき、免震床
の復元力を得ることができる。また共振が生じない。
The present invention has the above-mentioned structure, and the restoration tool consisting of one coil spring is interposed between the ground and the seismic isolation floor, and both ends of the restoration tool are located in the ground and the seismic isolation floor within a predetermined angle range. Since it is rotatably joined inside so that the angle can be changed in the horizontal direction, it can be installed in a small space with a simple structure and the restoring force of the seismic isolated floor can be obtained. Moreover, resonance does not occur.

またコイルスプリングとダンパーを組合せて復元具とし
た場合は、早期に元の状態に安定することになる。
Also, when the coil spring and the damper are combined to form a restoration tool, the original state is stabilized early.

【図面の簡単な説明】[Brief description of drawings]

第1図及び第2図はこの考案にかかる復元力付加装置の
側面図、第3図はその作動状態の側面図、第4図は従来
の復元力付加装置の平面図である。 1…地盤、2…免震装置、3…免震床、4…復元具、5
…コイルスプリング、6…取付具、7…係止部、8…ダ
ンパー。
1 and 2 are side views of a restoring force applying device according to the present invention, FIG. 3 is a side view of the operating state thereof, and FIG. 4 is a plan view of a conventional restoring force adding device. 1 ... Ground, 2 ... Seismic isolation device, 3 ... Seismic isolation floor, 4 ... Restoration tool, 5
... Coil spring, 6 ... Fixture, 7 ... Locking part, 8 ... Damper.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】地盤上にて免震装置を介して支える免震床
において、 地盤と免震床間に免震装置と併列させ一本のコイルスプ
リングから成る復元具を組合わせ、復元具の両端部を地
盤と免震床にそれぞれ水平方向に対し所定角度可変なよ
うに回転可能に連結したことを特徴とする免震床におけ
る復元力付加装置。
1. A seismic isolation floor supported on the ground via a seismic isolation device, wherein a restoration tool composed of a single coil spring is combined between the ground and the seismic isolation floor, and the restoration tool is combined. A restoring force adding device for a seismic isolated floor, characterized in that both ends are rotatably connected to the ground and the seismic isolated floor so that they can be varied by a predetermined angle with respect to the horizontal direction.
【請求項2】復元具はコイルスプリングとダンパーから
成っていることを特徴とする請求項(1)記載の免震床
における復元力付加装置。
2. The restoring force adding device for a base-isolated floor according to claim 1, wherein the restoring tool comprises a coil spring and a damper.
JP13112988U 1988-10-06 1988-10-06 Restoring force adding device on base-isolated floor Expired - Lifetime JPH072888Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13112988U JPH072888Y2 (en) 1988-10-06 1988-10-06 Restoring force adding device on base-isolated floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13112988U JPH072888Y2 (en) 1988-10-06 1988-10-06 Restoring force adding device on base-isolated floor

Publications (2)

Publication Number Publication Date
JPH0251601U JPH0251601U (en) 1990-04-12
JPH072888Y2 true JPH072888Y2 (en) 1995-01-30

Family

ID=31386906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13112988U Expired - Lifetime JPH072888Y2 (en) 1988-10-06 1988-10-06 Restoring force adding device on base-isolated floor

Country Status (1)

Country Link
JP (1) JPH072888Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6064224B2 (en) * 2013-01-08 2017-01-25 株式会社 林物産発明研究所 Seismic isolation material

Also Published As

Publication number Publication date
JPH0251601U (en) 1990-04-12

Similar Documents

Publication Publication Date Title
JPH072888Y2 (en) Restoring force adding device on base-isolated floor
JPH0362247U (en)
JPH0210353Y2 (en)
JPH0528273Y2 (en)
JPH02103536U (en)
JP2003166365A (en) Building damper
JP2820475B2 (en) Seismic isolation floor members
JPH033720Y2 (en)
JPH0350861B2 (en)
JP3138307B2 (en) Seismic isolation floor members
JPH0296054U (en)
JPH0477616U (en)
JPS62103868U (en)
JPS63183706U (en)
JPH03249445A (en) Simple earthquake proof device for small-structure
JPH0266249A (en) Floor structure
JPS5848785B2 (en) Vibration isolator
JPS63196244U (en)
JP2003201772A (en) Vibration absorber
JP2990532B2 (en) Seismic isolation device for lightweight buildings
JPS61125608U (en)
JPH03293469A (en) Response control floor member
JPH05133085A (en) Base isolation floor member
JPH0743347Y2 (en) Structure of joint between base-isolated floor and fixed floor
JPS63111337U (en)