JP2007255702A - Earthquake vibration absorbing device - Google Patents

Earthquake vibration absorbing device Download PDF

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Publication number
JP2007255702A
JP2007255702A JP2006265925A JP2006265925A JP2007255702A JP 2007255702 A JP2007255702 A JP 2007255702A JP 2006265925 A JP2006265925 A JP 2006265925A JP 2006265925 A JP2006265925 A JP 2006265925A JP 2007255702 A JP2007255702 A JP 2007255702A
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sliding
seismic isolation
earthquake
magnet
vibration absorbing
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Kazuhiro Hirano
和弘 平野
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HIRANO IND ENGINEERING DEV KK
Hirano Industrial Engineering Development
HIRANO INDUSTRIAL ENGINEERING DEVELOPMENT KK
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HIRANO IND ENGINEERING DEV KK
Hirano Industrial Engineering Development
HIRANO INDUSTRIAL ENGINEERING DEVELOPMENT KK
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Priority to JP2006265925A priority Critical patent/JP2007255702A/en
Publication of JP2007255702A publication Critical patent/JP2007255702A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an earthquake vibration absorbing device for greatly absorbing and reducing earthquake vibrations, thus preventing the propagation of earthquake vibrations to a building, a furniture or a display rack, if possible, to minimize damage thereto. <P>SOLUTION: The earthquake vibration absorbing device is mounted between an object such as the building or the furniture and a floor surface. When the floor surface shakes with earthquake, a multistage sliding device with a plurality of sliding faces 7, 12 layered stepwisely absorbs the earthquake vibrations to prevent the propagation of the earthquake vibrations to the object. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

特願2006−26297の解決すべき課題Problems to be solved in Japanese Patent Application No. 2006-26297

上記特願2006−26297(以下前願という)の発明は、地震で発生する水平方向の揺れを吸収することに、設計の主眼をおいていた。
また、小型の免震装置であれば頻繁な据付位置の移動、変更が行われることを想定しなければならない。
1・地震では下から突き上げる垂直方向の衝撃の後、水平方向の揺れが続けて発生する直下型地震が多いが、その衝撃で免震装置が空中に跳ね上げられることも考えられる。
前願の構造は、垂直に激しい突き上げの衝撃を受けた場合、免震装置自体がその衝撃によって一瞬宙に浮くことが予想され、その結果、各部品を重ねて据え付けているに過ぎない先願は、正常に組立状態で据付けられていたものが、元の据付面に落ちて据わりなおしても、各部品の正常な位置関係、組立状態に復元出来るという保証は無い。
万が一、上記によって正常な組立状態が崩れてしまうと、垂直動の後で発生する水平動に対抗して始動すべき免震装置が正常な免震運動をしないことが予想される。
2・色々な展示館や商業施設、一般家庭、企業事務所等で使用する小型免震装置に関しては、ユーザーの都合や好みによって、頻繁に移動したり展示するものの変更が生じたりする。
1でも触れたように、本発明は各部品を設計の通りに重ねることによって免震装置の機能を発揮するようにしているが、移動したり乗せ換えたりすることで、正常な組立状態が崩れることが懸念される、また動かすことによってその度に正常な組立をユーザーの手でやり直し復元する必要が生じて面倒である。
更に、上述とは別の問題であるが、大きな揺れ幅に対抗するには免震装置の全体的な寸法を大きく設計する必要があるが、可能な限り小さな免震装置で大きな揺れに対抗できる方が理想である、しかし前願の構造では大きな揺れに対抗しようとすれば、免震装置の全体寸法を大きくする必要が生じてくる。
狭い据付スペースしか確保できない場所では、大きな免震装置は正常な免震運動の阻害要因になりかねないし、ユーザーに不便を強いることも考えられる。
従って、前願の課題を要約すると、1、装置全体の部品が容易に分離しないようにし、2、小型ながら大きな揺れに対抗できる免震装置にする必要がある。
本課題を解決できれば、他の免震装置、積層ゴム仕様、球体仕様等他の免震装置では不可能な新しい、革新的な免震装置ができるものと考える。
The invention of the above-mentioned Japanese Patent Application No. 2006-26297 (hereinafter referred to as the prior application) mainly focuses on the design to absorb the horizontal shaking generated by the earthquake.
In addition, it is necessary to assume that frequent movement and change of the installation position should be performed if it is a small seismic isolation device.
1 · In the case of earthquakes, there are many direct-type earthquakes that continue to occur in the horizontal direction after vertical impact that pushes up from the bottom, but it is also conceivable that the impact isolation device can be bounced up into the air.
In the structure of the previous application, it is expected that the seismic isolation device itself will float in the air for a moment by the impact when it receives an impact with an intense push up vertically, and as a result, only the components are stacked and installed. However, there is no guarantee that the parts can be restored to their normal positional relationship or their assembled state even if they are properly installed in the assembled state but dropped and re-placed on the original installation surface.
If the normal assembly state is broken by the above, it is expected that the seismic isolation device to be started against the horizontal movement generated after the vertical movement will not perform the normal seismic isolation movement.
2 · With regard to small seismic isolation devices used in various exhibition halls, commercial facilities, general homes, corporate offices, etc., they often move or change what they exhibit depending on the user's convenience and preferences.
As mentioned in (1), the present invention achieves the function of the seismic isolation system by overlapping the parts as designed, but the normal assembly state is broken by moving or repositioning. It is bothersome that it is bothersome that moving requires the user to rework and reassemble normal assembly with the hand.
Furthermore, although it is another problem mentioned above, it is necessary to design the overall size of the seismic isolation device to be large in order to counter the large swing width, but it is possible to counter the large swing with the smallest possible seismic isolation device. In the structure of the previous application, if it is intended to counter the large shaking, it will be necessary to increase the overall size of the seismic isolation system.
Where there is only a small installation space available, a large seismic isolation system can be a hindrance to normal seismic isolation movement, which may cause inconvenience for the user.
Therefore, to summarize the problems of the prior application, it is necessary to make (1) the parts of the whole device not easily separated, and (2) to provide a seismic isolation device that can resist large shaking while being small.
If this problem can be solved, it is considered that new and innovative seismic isolation devices that can not be achieved by other seismic isolation devices such as other seismic isolation devices, laminated rubber specifications, spherical specifications, etc. can be created.

前願と改善した構造と効果の説明Description of previous application and improved structure and effects

具体的に内容を比較説明すると、前願であるの第1図と今回改善の第2図は第3図のように商品陳列棚Bの、底面にある据付用足の取付ねじ穴に、ねじ付習動駒1、若しくは固定ボルト10を装着して使用するタイプの免震装置Aであるが、第1図は前願に則った構成で、第2図は今回新しく改善した構成である。
尚、第4図は第1図の拡散分解図であり第5図は第2図の拡散分解図である。
第1図は、ねじ付習動駒1をアッパープレート4の中心にあるねじ穴に螺合させた後、習動駒固定ナット6を螺合させアッパープレート4の下側面と、ねじ付習動駒1の習動面と対抗する上側端面を密着させて締め付け、これを商品陳列棚Bの底面に既存する棚の足を螺合するためのねじ穴に螺合させる。
ロアープレート5を免震装置を据え付ける床面に置き、その中心に習動パット2、ストッパーリング3を置いて習動パット2の中心に、上記のねじ付習動駒1が乗るように位置を合せて据付け、4箇所の免震装置の高さをねじ付習動駒の高さを調整し、固定ナット7のダブルナットで固定し緩み止めをすれば免震装置の装着の完了である。
従って、前願はねじ付習動駒1をアッパープレート4のセンターに固定しているのが特長である、これによって、ねじ付習動駒1、習動パット2、ストッパーリング3が免震運動をして習動範囲Dのどの位置に移動しても、常に各部品が重なった状態で荷重を直接受ける構造にしているのである。
上記の構成であるから、垂直の突き上げる衝撃を受けて跳ね上げられたり、商品陳列棚を持ち上げて移動したりすると習動パット2、ストッパーリング3、ロアープレート5はその場に取り残されアッパープレート4と離れてしまう欠点がある。
第2図では、固定ボルト10の短い方のねじ部を上部本体17の中心のねじ穴に緩まないように確りと螺合し、上部本体17に設けた、細目ねじ19に固定ナット11を螺合させ、これを商品陳列棚Bの底面に既存する棚の足を螺合するためのねじ穴に螺合させる。
免震装置を据付ける床面に、下部本体18を置きその中心部に習動パット13、習動リング14、ストッパーリング16を置き、仕切板15の中心の穴に磁石12を通して、磁石12が習動リング14に嵌合するように重ねて置き、更に習動リング11を磁石12に嵌合させる。
上記の状態で上部本体17を習動リング14に中心を合せながら重ね、固定ボルト10のねじを調整しながら4箇所の免震装置の高さを決め、固定ナット11のねじによって、商品陳列棚Bと上部本体17を一体化させ、免震装置の装着完了である。
部品の具体的な材質は13,14,15,16についてはステンレス若しくはアルミニュームなどの磁石12の磁気の影響を受けない材質を使用する。
また、仕切板15は免震装置を組立てた後では、磁石12の位置が中心にあるか確認できないため、上部本体17と下部本体18の外径と仕切板15の外径を揃えることで、磁石12の位置を中心に案内し位置を目視確認するのが主目的である。
仕切板15を上下2個の習動リング14が挟むようにして重なった状態で上からの荷重を受けており、習動リング14の中には磁石12を嵌合させ、この磁石12は上部本体17の面との間に僅かな隙間を持たせており、従って磁石12では荷重を受けていない。
磁石の磁力で上部本体17と下部本体18は引合った状態にあり、強い垂直の突き上げる衝撃を受けて跳ね上げられても、また商品陳列棚Bを移動するために持ち上げても、免震装置Aの各部品は外れてバラけて分離する心配はない。
また、第2図は第1図と違って、習動する部品は全て固定されていないことは最大の改善の特徴であり、第2図のように習動ストロークCが第1図の習動ストロークDよりも遥かに大きくなる。
第2図の構成を考える上で苦労したのは、免震装置Aが地震発生によって免震運動をした場合、第1図のようなねじ付習動駒1、習動ぱっと2、ストッパーリング3が重なり合い常に重なった状態で荷重を支えていた場合は問題ないが、第2図のように、磁石12、習動リング14、習動パット13の全部品が大きく習動移動すると、固定ボルト10との中心が大きくずれてしまい、荷重が偏るために固定ボルト10に曲げの力が加わり、免震装置が破壊される心配がある。
その対策として、第2図の上部本体17に細目ねじ19を設け、19に螺合するねじをパイプ状の内径に加工した固定ナット11を取り付け、固定ナット11の上部端面と商品陳列棚Bの底面が、細目ねじ19によって押付けられ、この結果、固定ナット11を介して商品陳列棚と免震装置を一体化させたことによって、固定ボルト10と習動リング14が地震などによって大きく移動しても固定ナット11によって荷重は支えられる従って、固定ボルト10には曲げの力が加わらず破壊する心配はなく、正常な免震運動が出来るようにしたのである。
この改善によって習動部品を固定してない分、習動ストロークが大きくなり磁石の効果によって商品陳列棚を持ち上げたり、強い垂直方向の衝撃を受けて跳ね上がっても、免震装置の部品が離脱したりバラたりする心配がなくなった。
本改善によって、前願と比較して大きく性能が向上し使用する側としても、取り扱い上飛躍的に便利になったことは当然であるが、既存の他の免震装置では有り得ない小型免震装置で大きな地震に対抗でき、安価な高性能の免震装置が完成したのである。
Concretely comparing the contents, FIG. 1 of the previous application and FIG. 2 of the present improvement are screwed into the mounting screw holes of the installation foot on the bottom of the product display rack B as shown in FIG. Although it is the seismic isolation apparatus A of the type which mounts and uses the supplementary moving piece 1 or the fixed bolt 10, FIG. 1 is the structure according to the prior application, and FIG. 2 is the structure newly improved this time.
4 is a diffusion exploded view of FIG. 1, and FIG. 5 is a diffusion exploded view of FIG.
In FIG. 1, after the threaded training piece 1 is screwed into the screw hole at the center of the upper plate 4, the training piece fixing nut 6 is threaded and the lower surface of the upper plate 4 and the threaded training motion The upper end face opposed to the sliding surface of the piece 1 is closely attached and tightened, and this is screwed into the screw hole for screwing the existing shelf foot to the bottom of the product display shelf B.
Place the lower plate 5 on the floor on which the seismic isolation system is installed, place the sliding pad 2 and the stopper ring 3 in the center, and position the above-mentioned threaded swinging piece 1 in the center of the sliding pad 2 The installation of the seismic isolation system is completed by adjusting the height of the four seismic isolation devices at the four locations and adjusting the height of the learning piece and securing it with the double nut of the securing nut 7 to prevent loosening.
Therefore, the previous application is characterized in that the screwed training piece 1 is fixed to the center of the upper plate 4, whereby the threaded training piece 1, the movement pad 2 and the stopper ring 3 are isolated. Even if it moves to any position in the movement range D, the load is directly received in a state where the respective parts are always overlapped.
Since it is the above-mentioned composition, when it is bounced up under the impact of a vertical thrust, or when the product display shelf is lifted and moved, the movement pad 2, the stopper ring 3 and the lower plate 5 are left in place and the upper plate 4 There is a drawback of getting away from it.
In FIG. 2, the short screw portion of the fixing bolt 10 is firmly screwed into the central screw hole of the upper main body 17 so as not to be loosened, and the fixing nut 11 is screwed to the fine screw 19 provided on the upper main body 17. Then, they are screwed into screw holes for screwing the legs of the existing shelf to the bottom of the product display rack B.
Place the lower body 18 on the floor on which the seismic isolation device is installed, place the sliding pad 13, the sliding ring 14 and the stopper ring 16 in the center, and pass the magnet 12 through the hole in the center of the partition 15 The bearing ring 14 is placed so as to be fitted on the bearing ring 14 and the bearing ring 11 is fitted on the magnet 12.
In the above state, the upper main body 17 is overlapped while centering on the swing ring 14, the height of four seismic isolation devices is determined while adjusting the screw of the fixing bolt 10, and the product display shelf is determined by the screw of the fixing nut 11. B and the upper main body 17 are integrated, and installation of the seismic isolation system is completed.
As the specific material of the parts, for 13, 14, 15 and 16, a material which is not affected by the magnetism of the magnet 12, such as stainless steel or aluminum, is used.
In addition, since the partition plate 15 can not confirm whether the position of the magnet 12 is in the center after assembling the seismic isolation device, the outer diameters of the upper main body 17 and the lower main body 18 and the outer diameter of the partition plate 15 are equalized. The main purpose is to guide around the position of the magnet 12 and visually check the position.
A load from above is received in a state in which the partition plate 15 is overlapped with the upper and lower two swinging rings 14 interposed therebetween, and the magnet 12 is fitted in the swinging ring 14, and the magnet 12 is the upper main body 17. There is a slight gap between the magnet and the face of the magnet 12 and therefore the magnet 12 is not loaded.
The upper body 17 and the lower body 18 are in a state where they are brought together due to the magnetic force of the magnet, and even if they are bounced up due to a strong vertical thrusting impact or lifted to move the product display rack B, There is no concern that parts of A will come apart and fall apart.
Moreover, unlike FIG. 1, FIG. 2 is the feature of the greatest improvement that all the parts to be moved are not fixed, and as shown in FIG. It is much larger than the stroke D.
What I struggled in considering the configuration of FIG. 2 is that, when the seismic isolation system A performs seismic isolation movement due to the occurrence of an earthquake, the threaded learning piece 1 as shown in FIG. 1, the habitual movement 2, the stopper ring 3 There is no problem in the case where the load is supported in an overlapping state and always overlapping, but as shown in FIG. 2, when all parts of the magnet 12, the sliding ring 14 and the sliding pad 13 largely move, the fixing bolt 10 As a result, the load on the fixed bolt 10 is subject to bending force to cause the seismic isolation device to be destroyed.
As a countermeasure, a fine screw 19 is provided in the upper main body 17 of FIG. 2, and a fixing nut 11 is formed by processing a screw screwed into 19 into a pipe-like inner diameter. The bottom surface is pressed by the fine screw 19, and as a result, by integrating the product display rack and the seismic isolation device through the fixing nut 11, the fixing bolt 10 and the sliding ring 14 are largely moved by an earthquake or the like. Since the load is supported by the fixing nut 11 as well, there is no fear that the fixing bolt 10 will be broken without being subjected to bending force, and normal isolation operation can be performed.
Because this improvement does not fix the habitual parts, the habitual stroke length increases, and even if the product display shelf is lifted due to the effect of the magnet or bounces due to a strong vertical impact, the parts of the seismic isolation device detach. There was no need to worry about falling apart.
It is a matter of course that this improvement has greatly improved the performance compared to the previous application and it has become dramatically more convenient in terms of handling, but it is a small seismic isolation system that can not be achieved with other existing seismic isolation devices. The equipment can cope with large earthquakes, and a cheap, high-performance seismic isolation device has been completed.

1・第1図は、特願2006−26297の基本構造を陳列棚用とした組立断面図
2・第2図は、改善した基本構造を陳列棚用とした組立断面図
3・第3図は、商品陳列棚に本発明の免震装置を装着したことを示す立体図
4・第4図は、特願2006−26297の基本構造を陳列棚用とした拡散分解図
5・第5図は、改善した基本構造を陳列棚用とした拡散分解図
5・1は、ねじ付習動駒
6・2は、習動パット
7・3は、ストッパーリング
8・4は、アッパープレート
9・5は、ロアープレート
10・6は、習動駒固定ナット
11・7,8は、固定ナット
12・Aは、免震装置
13・Bは、商品陳列棚
14・Cは、習動範囲半径
15・Dは、習動範囲半径
16・10は、固定ボルト
17・11は、固定ナット
18・12は、磁石
19・14は、習動リング
20・15は、仕切板
21・16は、ストッパーリング
22・17は、上部本体
23・18は、下部本体
24・19は、細目ねじ
1 · Fig. 1 is an assembled sectional view of the basic structure of Japanese Patent Application No. 2006-26297 for a display shelf 2 · Fig. 2 is an assembled sectional view of the improved basic structure for a display shelf 3 · Fig. 3 The three-dimensional drawing 4 and FIG. 4 showing that the seismic isolation device of the present invention is mounted on a product display shelf is a diffusion exploded view 5 and FIG. 5 showing the basic structure of Japanese Patent Application No. 2006-26297 for a display shelf Diffusive exploded view 5.1 for the improved basic structure for a display shelf: The threaded learning piece 6 · 2, the learning pad 7 · 3, the stopper ring 8 · 4, the upper plate 9 · 5, The lower plate 10 · 6, the sliding piece fixing nut 11 · 7, 8, the fixing nut 12 · A, the seismic isolation device 13 · B, the commodity display shelf 14 · C, the habituation range radius 15 · D The bearing range radius 16 · 10, the fixing bolt 17 · 11, the fixing nut 18 · 12, the magnet 19 · 14 , 習動 ring 20, 15, partition plates 21, 16, stopper ring 22, 17, upper body 23, 18 includes a lower body 24, 19 is fine thread

Claims (2)

図4、図5、図6、上部プレート(1)の下面に摺動面(2)を設ける、摺動金具(5)の上面に摺動面(7)と摺動金具(5)の下面に摺動面(8)とストッパー内径(6)を設け、摺動金具(5)の外径をストッパー外径(13)とする、下部プレート(10)の上面側に摺動面(12)を設けて、摺動面(12)とストッパー内径(11)を設けて、摺動面(2)と摺動面(5)を摺動自在に密着させ、摺動面(8)と摺動面(12)を摺動自在に密着させたことを特徴とする振動吸収装置。Figure 4, Figure 5, Figure 6, the sliding surface (2) is provided on the lower surface of the upper plate (1), the sliding surface (7) on the upper surface of the sliding bracket (5) and the lower surface of the sliding bracket (5) Provide the sliding surface (8) and the stopper inner diameter (6), and use the outer diameter of the sliding bracket (5) as the stopper outer diameter (13). To provide the sliding surface (12) and the stopper inner diameter (11), so that the sliding surface (2) and the sliding surface (5) are slidably in close contact, and sliding with the sliding surface (8) A vibration absorbing device characterized in that the surface (12) is slidably in close contact. 図14、図16、下部本体(180)の上側面中央に磁石(120)を据付け、磁石の厚さ寸法よりも僅かに厚くした摺動リング(140)の穴に磁石を通して据え付け、上部本体(170)の下側面の中心と摺動リング(140)の上面中心を合せて重ねたことを特徴とする振動吸収装置。In Fig. 14 and 16, the magnet (120) is installed in the center of the upper surface of the lower body (180), and the magnet is installed through the hole of the sliding ring (140) slightly thicker than the thickness dimension of the magnet 170) A vibration absorbing device characterized in that the center of the lower side surface and the upper surface center of the sliding ring (140) are aligned.
JP2006265925A 2006-01-03 2006-08-31 Earthquake vibration absorbing device Pending JP2007255702A (en)

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JP2006265925A JP2007255702A (en) 2006-01-03 2006-08-31 Earthquake vibration absorbing device

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JP2014047910A (en) * 2012-09-04 2014-03-17 Tokkyokiki Corp Sliding type base isolation device
KR102231506B1 (en) * 2020-08-19 2021-03-24 국제시스템(주) Rack unit system with seismic vibration damping device installed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014047910A (en) * 2012-09-04 2014-03-17 Tokkyokiki Corp Sliding type base isolation device
KR102231506B1 (en) * 2020-08-19 2021-03-24 국제시스템(주) Rack unit system with seismic vibration damping device installed

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