JPH1144341A - Fixing method for base isolation device - Google Patents
Fixing method for base isolation deviceInfo
- Publication number
- JPH1144341A JPH1144341A JP20333997A JP20333997A JPH1144341A JP H1144341 A JPH1144341 A JP H1144341A JP 20333997 A JP20333997 A JP 20333997A JP 20333997 A JP20333997 A JP 20333997A JP H1144341 A JPH1144341 A JP H1144341A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnet
- fixing
- seismic isolation
- isolation device
- ferromagnetic material
- 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.)
- Withdrawn
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、美術品等の展示ケ
ースや戸建て住宅などの免震装置の固定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fixing a seismic isolation device such as a display case for a work of art or a detached house.
【０００２】[0002]
【従来の技術】従来、美術品等の展示ケースや戸建て住
宅などの免震装置の固定方法としては、摩擦を利用する
タイプや油圧ロックを利用するタイプが知られている。
摩擦を利用するタイプでは、免震装置自身がもっている
摩擦や別途摩擦を付加しているために、摩擦力以下の地
震動では装置は動かず免震効果はない。又、摩擦力以上
の入力でも免震効果は一般に悪くなる。油圧ロックを利
用するタイプは高価となる。2. Description of the Related Art Conventionally, as a method of fixing a seismic isolation device such as a display case for a work of art or a detached house, a type using friction and a type using a hydraulic lock are known.
In the type that uses friction, since the seismic isolation device itself has friction or additional friction, the device does not move and there is no seismic isolation effect when the ground motion is lower than the frictional force. In addition, the seismic isolation effect generally worsens even with an input higher than the frictional force. The type using a hydraulic lock is expensive.
【０００３】[0003]
【発明が解決しようとする課題】本発明は免震効果は十
分で、トリガーレベルが任意に設定でき、しかもコンパ
クトで安価にできる免震装置の固定方法を提供するもの
である。SUMMARY OF THE INVENTION An object of the present invention is to provide a method of fixing a seismic isolation device which has a sufficient seismic isolation effect, can set a trigger level arbitrarily, and is compact and inexpensive.
【０００４】[0004]
【課題を解決するための手段】本発明は、免震装置にお
いて相対変位する部位の一方に、ばね作用を有する電磁
石支持板を支持し、該電磁石支持板には電磁石を配し、
相対変位部の他方に電磁石に吸着する強磁性体を配置し
て電磁石と強磁性体とによって固定することを特徴とす
る免震装置の固定方法である。According to the present invention, an electromagnet support plate having a spring action is supported on one of the relatively displaced portions in the seismic isolation device, and an electromagnet is arranged on the electromagnet support plate.
A method of fixing a seismic isolation device, characterized in that a ferromagnetic material adsorbed to an electromagnet is arranged on the other of the relative displacement portions and fixed by the electromagnet and the ferromagnetic material.
【０００５】上記電磁石と強磁性体との固定は、検出器
の設定値以上の地震動に基づいて自動的に解除されるよ
うになっている。The fixing between the electromagnet and the ferromagnetic material is automatically released based on a seismic motion exceeding a set value of the detector.
【０００６】地震動の検出器は床面に設置され、地震動
による信号を検出して制御器を介して電磁石と接続され
ている。電磁石には常時通電されており、強磁性体は電
磁石によって吸着されて動かない。検出器により設定値
以上の震動が感知されると、その信号を電磁石に伝え、
電磁石には通電しなくなり、強磁性体の吸着が解除され
る。すると電磁石支持板のばね作用により電磁石と強磁
性体との間に隙間が生じ、免震装置は自由に作動するよ
うになる。[0006] The seismic motion detector is installed on the floor, detects a signal due to the seismic motion, and is connected to an electromagnet via a controller. The electromagnet is always energized, and the ferromagnetic material is attracted by the electromagnet and does not move. When the detector detects a vibration exceeding the set value, the signal is transmitted to the electromagnet,
The current is not supplied to the electromagnet, and the adsorption of the ferromagnetic material is released. Then, a gap is generated between the electromagnet and the ferromagnetic material due to the spring action of the electromagnet support plate, and the seismic isolation device can operate freely.
【０００７】電磁石と強磁性体とは一方に凹所を設け、
他方に固定ピンを設けて、凹所と固定ピンとが嵌合する
ようにして、さらに確実に固定することが可能となる。The electromagnet and the ferromagnetic material are provided with a recess on one side,
A fixing pin is provided on the other side, so that the recess and the fixing pin are fitted to each other, so that the fixing can be performed more reliably.
【０００８】又、強磁性体として永久磁石を用いて、こ
れを電磁石と組み合わせるとランニングコストが安くな
る。Further, when a permanent magnet is used as a ferromagnetic material and this is combined with an electromagnet, the running cost is reduced.
【０００９】[0009]
【発明の実施の形態】以下に、本発明の実施の形態を図
面に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は例えば美術品免震トリガー機構の一
例を示すもので、１は建物床の上に固定したベースで、
２は美術品等を載置する免震部であり、ベース１には強
磁性体４を固着してあり、免震部２の下面には電磁石３
をばね作用を有する支持板５によって配置する。６は基
礎上に設けた検出器で、受信した震動信号をコントロー
ルする制御器７を通じて、電磁石３に信号を送る。平常
時は電磁石３に通電し、強磁性体４を吸着してトリガー
値を設定する。地震が発生すると、その大きさに応じて
検出器６から信号を制御器７に送信する。制御器７は震
度が設定値以下なら電磁石３に通電し、電磁石３と強磁
性体４とは結合して相対移動しない。地震の震度が設定
値以上になると、制御器７は電磁石３の通電をオフと
し、トリガー値は解除されるので、ベース１と免震部２
とは相対移動する。FIG. 1 shows an example of an artistic seismic isolation trigger mechanism, wherein 1 is a base fixed on a building floor,
Reference numeral 2 denotes a seismic isolation unit on which works of art are placed, a ferromagnetic material 4 is fixed to the base 1, and an electromagnet 3 is mounted on the lower surface of the seismic isolation unit 2.
Are arranged by a support plate 5 having a spring action. Reference numeral 6 denotes a detector provided on the foundation, which sends a signal to the electromagnet 3 through a controller 7 for controlling the received vibration signal. In normal times, the electromagnet 3 is energized to attract the ferromagnetic material 4 and set a trigger value. When an earthquake occurs, a signal is transmitted from the detector 6 to the controller 7 according to the magnitude of the earthquake. If the seismic intensity is equal to or less than the set value, the controller 7 energizes the electromagnet 3, and the electromagnet 3 and the ferromagnetic material 4 are coupled and do not move relative to each other. When the seismic intensity of the earthquake exceeds the set value, the controller 7 turns off the energization of the electromagnet 3 and the trigger value is released.
Moves relative to.
【００１１】図２は電磁石３と強磁性体４の部分の他の
実施例で、検出器６が受信した振動が制御器７に予め設
定された震度以上の場合は、トリガー値が解除され、ベ
ースと免震部は相対移動をするが、震動が設定値以下の
場合は、ベースと免震部とが確実に相対移動しないよう
に、強磁性体４には凹部８を設け、電磁石３側には、該
凹部８に嵌合する固定ピン９を設け、この凹部８と固定
ピン９と電磁石３の作用による嵌合によって固着する。FIG. 2 shows another embodiment of the portion of the electromagnet 3 and the ferromagnetic material 4. When the vibration received by the detector 6 is equal to or higher than the seismic intensity preset in the controller 7, the trigger value is released. The base and the seismic isolation part move relative to each other, but when the vibration is equal to or less than the set value, a recess 8 is provided in the ferromagnetic material 4 so that the base and the seismic isolation part do not move relative to each other. Is provided with a fixing pin 9 which fits into the concave portion 8, and is fixed by the fitting of the concave portion 8, the fixing pin 9 and the electromagnet 3.
【００１２】図３は、変形例で免震部２の下面に設ける
支持板５が図１の場合は片持式であるのに対して、両持
式としたものである。FIG. 3 shows a modification in which a support plate 5 provided on the lower surface of the seismic isolation part 2 is of a cantilever type in FIG.
【００１３】図４は電磁石の支持板５とベース１との間
にばね１０を介在させたもので、このばね１０による作
用を電磁石３に与え、トリガー値を設定した例である。FIG. 4 shows an example in which a spring 10 is interposed between the support plate 5 of the electromagnet and the base 1 and the action of the spring 10 is applied to the electromagnet 3 to set a trigger value.
【００１４】図５はベース１に永久磁石１１を配し、免
震部２側には電磁石３を配した例で、平常時は永久磁石
１１の磁力線によりトリガー値を設定し、制御器７に予
め設定したトリガー値より大きな震度が検出器６より入
力すると、電磁石３に電流が流れて、電磁石３の磁力線
は永久磁石の磁力線と逆方向に発生して、トリガー値は
解除され、ベース１と免震部２とは相対移動する。FIG. 5 shows an example in which a permanent magnet 11 is arranged on the base 1 and an electromagnet 3 is arranged on the seismic isolation part 2 side. When a seismic intensity larger than a preset trigger value is input from the detector 6, a current flows through the electromagnet 3, and the magnetic field lines of the electromagnet 3 are generated in the opposite direction to the magnetic field lines of the permanent magnet, the trigger value is released, and the base 1 is released. It moves relative to the seismic isolation part 2.
【００１５】以上の例では電磁石３は免震部２側に、強
磁性体４又は永久磁石１１はベース１側に配置している
が、これらは逆に配置してもよい。凹部８と固定ピン９
も逆にしてももちろんよい。In the above example, the electromagnet 3 is disposed on the seismic isolation unit 2 side, and the ferromagnetic material 4 or the permanent magnet 11 is disposed on the base 1 side. Recess 8 and fixing pin 9
Of course, the reverse is also possible.
【００１６】[0016]
【発明の効果】本発明は以上の通りであり、構成が簡単
で、コンパクト化が可能であり、安価に実現できる。摩
擦部分がないので、摩耗による性能の低下がない。又、
電磁石又は永久磁石によりトリガー値が任意に設定でき
る。As described above, the present invention has a simple structure, can be made compact, and can be realized at low cost. Since there is no friction portion, there is no performance decrease due to wear. or,
The trigger value can be arbitrarily set by an electromagnet or a permanent magnet.
【図１】本発明の実施例の説明図である。FIG. 1 is an explanatory diagram of an embodiment of the present invention.
【図２】電磁石と強磁性体の部分の変形例を示す説明図
である。FIG. 2 is an explanatory view showing a modified example of an electromagnet and a ferromagnetic body.
【図３】他の変形例の説明図である。FIG. 3 is an explanatory diagram of another modification.
【図４】他の変形例の説明図である。FIG. 4 is an explanatory diagram of another modified example.
【図５】永久磁石を用いた例の説明図である。FIG. 5 is an explanatory diagram of an example using a permanent magnet.
１ ベース ２ 免震部 ３ 電磁石 ４ 強磁性体 ５ 支持板 ６ 検出器 ７ 制御器 ８ 凹部 ９ 固定ピン １０ ばね １１ 永久磁石 DESCRIPTION OF SYMBOLS 1 Base 2 Seismic isolation part 3 Electromagnet 4 Ferromagnetic material 5 Support plate 6 Detector 7 Controller 8 Depression 9 Fixing pin 10 Spring 11 Permanent magnet
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮野 宏 東京都江東区辰巳３−５−３ 三菱製鋼株 式会社環境エンジニアリング事業部内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Miyano 3-5-3 Tatsumi, Koto-ku, Tokyo Environmental Engineering Division, Mitsubishi Steel Corporation
Claims (4)
一方に、ばね作用を有する電磁石支持板を支持し、該電
磁石支持板には電磁石を配し、相対変位部の他方に電磁
石に吸着する強磁性体を配置して電磁石と強磁性体とに
よって固定することを特徴とする免震装置の固定方法。In the seismic isolation device, an electromagnet support plate having a spring action is supported on one of the portions that are relatively displaced, and an electromagnet is disposed on the electromagnet support plate, and the other of the relative displacement portions is attracted to the electromagnet. A method for fixing a seismic isolation device, comprising: arranging a ferromagnetic material and fixing the same by an electromagnet and a ferromagnetic material.
設定値以上の地震動に基づいて自動的に解除されるよう
にした請求項１記載の免震装置の固定方法。2. The method for fixing a seismic isolation device according to claim 1, wherein the fixing between the electromagnet and the ferromagnetic material is automatically released based on a seismic motion exceeding a set value of the detector.
久磁石を、他方に電磁石を配置して、平常時にはトリガ
ー値が設定され、設定値以上の震動が発生したときに電
磁石によってトリガー値が解除されるようにしたことを
特徴とする免震装置の固定方法。3. A permanent magnet is disposed on one of the parts of the seismic isolation device which is relatively displaced, and an electromagnet is disposed on the other. A trigger value is set in normal times, and the trigger value is set by the electromagnet when a vibration exceeding the set value occurs. The method for fixing a seismic isolation device, characterized in that the vibration is released.
方に固定ピンを設けて、該凹部と固定ピンとを嵌合する
ようにした請求項１ないし３記載の免震装置の固定方
法。4. The method of fixing a seismic isolation device according to claim 1, wherein a recess is provided on one of the ferromagnetic material and the electromagnet and a fixing pin is provided on the other, and the recess and the fixing pin are fitted. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20333997A JPH1144341A (en) | 1997-07-29 | 1997-07-29 | Fixing method for base isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20333997A JPH1144341A (en) | 1997-07-29 | 1997-07-29 | Fixing method for base isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1144341A true JPH1144341A (en) | 1999-02-16 |
Family
ID=16472393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20333997A Withdrawn JPH1144341A (en) | 1997-07-29 | 1997-07-29 | Fixing method for base isolation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1144341A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004331256A (en) * | 2003-05-01 | 2004-11-25 | Itoki Crebio Corp | Safety device in moving shelf device |
| JP2006291512A (en) * | 2005-04-07 | 2006-10-26 | Daiken Kensetsu Kogyo Kk | Base isolation device, building using base isolation device, and mounting method for base isolation device |
| JP2008169681A (en) * | 2006-09-05 | 2008-07-24 | Nobuyoshi Kaneko | Base isolation device of building |
| CN107100289A (en) * | 2017-04-06 | 2017-08-29 | 北京建筑大学 | A kind of shock insulation automatic spacing system |
| CN115075643A (en) * | 2022-07-08 | 2022-09-20 | 安徽工业大学 | Controllable post system that sways based on earthquake early warning system |
| CN115182476A (en) * | 2022-08-11 | 2022-10-14 | 安徽工业大学 | Three-dimensional shock isolation system capable of achieving elastic limiting at ordinary times and unilateral limiting during working |
| CN115233849A (en) * | 2022-08-11 | 2022-10-25 | 安徽工业大学 | Initiative start-up formula intelligence isolation bearing |
-
1997
- 1997-07-29 JP JP20333997A patent/JPH1144341A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004331256A (en) * | 2003-05-01 | 2004-11-25 | Itoki Crebio Corp | Safety device in moving shelf device |
| JP2006291512A (en) * | 2005-04-07 | 2006-10-26 | Daiken Kensetsu Kogyo Kk | Base isolation device, building using base isolation device, and mounting method for base isolation device |
| JP4722531B2 (en) * | 2005-04-07 | 2011-07-13 | ダイケン建設工業株式会社 | Seismic isolation devices, buildings using seismic isolation devices |
| JP2008169681A (en) * | 2006-09-05 | 2008-07-24 | Nobuyoshi Kaneko | Base isolation device of building |
| JP4543052B2 (en) * | 2006-09-05 | 2010-09-15 | 信義 金子 | Building seismic isolation device |
| CN107100289A (en) * | 2017-04-06 | 2017-08-29 | 北京建筑大学 | A kind of shock insulation automatic spacing system |
| CN115075643A (en) * | 2022-07-08 | 2022-09-20 | 安徽工业大学 | Controllable post system that sways based on earthquake early warning system |
| CN115075643B (en) * | 2022-07-08 | 2024-04-09 | 安徽工业大学 | Controllable swing column system based on earthquake early warning system |
| CN115182476A (en) * | 2022-08-11 | 2022-10-14 | 安徽工业大学 | Three-dimensional shock isolation system capable of achieving elastic limiting at ordinary times and unilateral limiting during working |
| CN115233849A (en) * | 2022-08-11 | 2022-10-25 | 安徽工业大学 | Initiative start-up formula intelligence isolation bearing |
| CN115182476B (en) * | 2022-08-11 | 2024-03-29 | 安徽工业大学 | Three-dimensional vibration isolation system capable of achieving elastic limiting at ordinary times and unilateral limiting during working |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20041005 |