JP2933091B2 - Anti-vibration device - Google Patents
Anti-vibration deviceInfo
- Publication number
- JP2933091B2 JP2933091B2 JP2257874A JP25787490A JP2933091B2 JP 2933091 B2 JP2933091 B2 JP 2933091B2 JP 2257874 A JP2257874 A JP 2257874A JP 25787490 A JP25787490 A JP 25787490A JP 2933091 B2 JP2933091 B2 JP 2933091B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- rollers
- pressure plate
- roller
- horizontal
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Floor Finish (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は防振装置に関し、詳しくは建築物周辺の交通
振動、建築物内の他室の設備から発生する振動や地震に
よる振動が建築物の床を経由して伝達し、建築物内に設
置されたコンピュータや精密計測機器などの機器類が振
動して機能停止や横転などすることを未然に防止するた
め、コンピュータ等の機器類が載置される床などの上部
構造物を、スラブ等の下部構造物上に揺動自在に支持す
ることにより、上記振動を絶縁して機器類を振動から保
護する防振装置に関する。Description: BACKGROUND OF THE INVENTION The present invention relates to an anti-vibration device, and more particularly, to vibrations generated around buildings, vibrations generated from equipment in other rooms in buildings, and vibrations caused by earthquakes. Computers and other precision measuring equipment installed inside the building to prevent them from vibrating and stopping or rolling over. The present invention relates to an anti-vibration device that insulates the above-mentioned vibration and protects equipment from the vibration by supporting an upper structure such as a floor to be placed on a lower structure such as a slab in a swingable manner.
コンピュータや精密計測機器などの機器類が載置され
た床などの上部構造物を、スラブ等の下部構造物上に揺
動自在に支持することにより、建築物周辺の交通振動、
建築物内の他室の設備から発生する振動や地震による振
動を絶縁して機器類を振動から保護する防振装置にはベ
アリング方式のものがある。By supporting an upper structure such as a floor on which equipment such as a computer and precision measuring equipment is mounted on a lower structure such as a slab, it is possible to swing traffic around the building,
2. Description of the Related Art There is a bearing-type anti-vibration device that insulates vibration generated from equipment in another room in a building or vibration caused by an earthquake to protect equipment from vibration.
このベアリング方式の防振装置としては、特開昭54−
45303号公報に開示されたものがある。この防振装置は
複数のローラを並列させて相互に直交させた状態で上下
二段積みした構造を有し、上記各ローラの転動により水
平方向の振動を吸収しようとするものである。Japanese Patent Application Laid-Open No.
There is one disclosed in Japanese Patent No. 45303. This anti-vibration device has a structure in which a plurality of rollers are arranged side by side in a state where a plurality of rollers are arranged side by side and are orthogonal to each other, and it is intended to absorb horizontal vibration by the rolling of each roller.
また、本出願人は先に特願平2−10910号に開示した
防振装置を出願した。この防振装置は、上部構造物と下
部構造物の間に上部構造物を水平方向に揺動自在に支持
する複数のローラを並列させて挾み込み、上記ローラの
転動面にエラストマーを配置した構造を有し、上記ロー
ラの転動により振動の水平成分を吸収すると共に、その
ローラ転動時での転動面を形成するエラストマーの局部
的な弾性変形により振動の鉛直成分も吸収しようとする
ものである。The present applicant has previously filed an application for the vibration damping device disclosed in Japanese Patent Application No. 2-10910. In this vibration isolator, a plurality of rollers for horizontally supporting the upper structure so as to be swingable in a horizontal direction are sandwiched between an upper structure and a lower structure, and an elastomer is arranged on a rolling surface of the rollers. In addition to absorbing the horizontal component of the vibration by the rolling of the roller, the vertical component of the vibration is also to be absorbed by the local elastic deformation of the elastomer forming the rolling surface during the rolling of the roller. Is what you do.
ところで、前述したように特開昭54−45303号公報に
開示された防振装置では、ローラが金属などの剛体で製
作されているので、ローラの転動面との接触面積が非常
に少なくてその接触点での面圧は非常に高く、地震発生
時に強い振動を受けた際なローラや転動面に損傷が発生
し易い。更に、施行時にはローラの外形寸法や転動面の
平行度に正確なものが要求され、これが不正確である
と、かだつきが発生する虞もあった。By the way, in the vibration isolator disclosed in JP-A-54-45303, as described above, since the roller is made of a rigid body such as metal, the contact area with the rolling surface of the roller is very small. The contact pressure at the contact point is very high, and the roller and the rolling surface are likely to be damaged when receiving strong vibration during an earthquake. Further, at the time of the enforcement, it is required that the outer dimensions of the roller and the parallelism of the rolling surface are accurate, and if this is inaccurate, there is also a risk that rigidity may occur.
そこで、上記ローラが金属などの剛体で製作されてい
ることで生じた問題点を解決するため、本出願人が先に
出願した特願平2−10910号に開示した防振装置では、
上下部構造物間に挾み込んだ複数のローラの転動面にエ
ラストマーを配置した構造であるので、鉛直荷重により
上記エラストマーが弾性変形してローラの積荷面積が増
加し、鉛直荷重が分散されて強い振動を受けてもローラ
や転動面が損傷することを防止できる。また、上記ロー
ラの外形寸法や転動面の平行度が高精度でなくても、そ
のばらつきをエラストマーの弾性変形により吸収し得
る。Therefore, in order to solve the problems caused by the roller is made of a rigid body such as metal, in the vibration isolator disclosed in Japanese Patent Application No. 2-10910 filed earlier by the present applicant,
Since the elastomer is arranged on the rolling surface of a plurality of rollers sandwiched between upper and lower structures, the elastomer is elastically deformed by the vertical load, the load area of the roller increases, and the vertical load is dispersed. It is possible to prevent the rollers and the rolling surface from being damaged even when subjected to strong vibration. Further, even if the outer dimensions of the roller and the parallelism of the rolling surface are not highly accurate, the variation can be absorbed by the elastic deformation of the elastomer.
ここで、建築物周辺の交通振動、建築物内の他室の設
備から発生した振動や地震による振動には水平成分の他
に回転成分を含むねじれ動などの振動がある。この回転
成分を含む振動が発生した場合、前述した特開昭54−45
303号公報及び特願平2−10910号に開示した防振装置の
いずれについても対応することが困難であった。Here, traffic vibrations around the building, vibrations generated from facilities in other rooms in the building, and vibrations due to the earthquake include vibrations such as torsional motions including rotational components in addition to horizontal components. When vibration including this rotation component occurs, the above-mentioned Japanese Patent Application Laid-Open No.
It was difficult to cope with any of the vibration isolators disclosed in Japanese Patent Application No. 303 and Japanese Patent Application No. 2-10910.
そこで、本発明は上記問題点に鑑みて提案されたもの
で、その目的とするところは、回転成分を含むねじれ動
などの振動を簡単な構造により吸収し得る防振装置を提
供することにある。Therefore, the present invention has been proposed in view of the above problems, and an object of the present invention is to provide an anti-vibration device capable of absorbing a vibration such as a torsional motion including a rotational component with a simple structure. .
本発明における上記目的を達成するための技術的手段
は、上部構造物と下部構造物の間に、上部構造物を水平
方向に揺動自在に支持する複数のローラを並列させて挟
み込むと共に、前記ローラの上方又は下方で上下部構造
物間に、上部構造物を水平面内での回転方向に揺動自在
に支持する複数のテーパ状ローラを水平面内で放射状に
配置して介在させたことである。The technical means for achieving the above object in the present invention is, between an upper structure and a lower structure, a plurality of rollers for horizontally supporting the upper structure so as to swing freely in the horizontal direction, and sandwiching the rollers. A plurality of tapered rollers that support the upper structure so as to be swingable in the horizontal plane in the horizontal plane are interposed between the upper and lower structures above or below the rollers by radially arranging them in the horizontal plane. .
(作用) 本発明に係る防振装置では、上部構造物を水平方向に
揺動自在に支持するローラの上方又は下方で上下部構造
物間に、上部構造物を水平面内での回転方向に揺動自在
に支持する複数のテーパ状ローラを水平面内で放射状に
配置して介在させたから、交通振動や地震動の発生時、
回転成分を含むねじれ動が入力されても、上記テーパ状
ローラが水平面内で回転方向に転動することにより、ね
じれ動などの振動の回転成分を確実に吸収し得る。(Operation) In the vibration isolator according to the present invention, the upper structure is swung in the direction of rotation in the horizontal plane between the upper and lower structures above or below the roller that supports the upper structure so as to be able to swing in the horizontal direction. A plurality of movably supported tapered rollers are arranged radially in the horizontal plane and interposed, so when traffic vibration or seismic motion occurs,
Even if a torsional motion including a rotational component is input, the tapered roller rolls in the rotational direction in a horizontal plane, so that the rotational component of the vibration such as the torsional motion can be reliably absorbed.
本発明に係る防振装置の実施例を第1図乃至第5図を
参照しながら説明する。An embodiment of a vibration isolator according to the present invention will be described with reference to FIGS.
第1図乃至第3図に示す防振装置(1)は、例えばコ
ンピュータや精密計測機器などの機器類が載置される防
振床などの上部構造物(2)と建築物内のスラブなどの
下部構造物(3)との間に設置される。The anti-vibration device (1) shown in FIGS. 1 to 3 is, for example, an upper structure (2) such as an anti-vibration floor on which devices such as a computer and a precision measuring device are mounted, and a slab in a building. And the lower structure (3).
この防振装置(1)において、(4)は上部構造物
(2)の下面に固着された鋼板などの上部耐圧板で、そ
の下面に逆円錐状の耐圧板(5)を別体又は一体に設置
し、その耐圧板(5)の下面にエラストマー(6)を加
硫接着などにより貼着する。(7)は下部構造物(3)
の上面に上部耐圧板(4)と対向させて固着した鋼板な
どの下部耐圧板で、その上面にシート状のエラストマー
(8)を加硫接着などにより貼着する。(9)…(10)
…(11)…は上部耐圧板(4)と下部耐圧板(7)との
間に配設した複数のローラ(以下第1、第2及び第3の
ローラと称す)で、下部に位置する第1のローラ(9)
…及び中間に位置する第2のローラ(10)…は、それぞ
れ連結板(12)(13)により並列状態で回転自在に支持
され、相互に90゜の角度をなして積載される。また、上
部に位置する本発明の特徴である第3のローラ(11)…
は、テーパ状をしており、水平面内で放射状に連結され
て配置される。具体的には、第3のローラ(11)…は同
心状に配置された大径のリング状連結板(14)と小径の
リング状連結板(15)により放射状配置された状態で回
転自在に支持される。尚、この第1〜第3のローラ
(9)…(10)…(11)…の材質は、鉛直荷重に耐え得
るものであればよく、例えば、金属、コンクリート、セ
ラミックス、硬質プラスチック、FRPなどである。(1
6)(17)は第1のローラ(9)…と第2のローラ(1
0)…の間、及び第2のローラ(10)…と第3のローラ
(11)…の間にそれぞれ介設した鋼板などの中間耐圧板
(以下第1、第2の中間耐圧板と称す)で、第1の中間
耐圧板(16)の上下面及び第2の中間耐圧板(17)の下
面にシート状のエラストマー(18)(19)(20)を加硫
接着などにより貼着する。第2の中間耐圧板(17)の上
面には上部耐圧板(4)の逆円錐状耐圧板(5)と対向
させて円錐状の耐圧板(21)を別体又は一体に設置し、
その耐圧板(21)の上面にエラストマー(22)を加硫接
着などにより貼着する。ここで、各耐圧板(5)(7)
(16)(17)(21)のエラストマー(6)(8)(18)
〜(20)(22)の材質は、弾性を持つものであればよ
く、例えば各種ゴム材料又はプラスチック等である。第
1〜第3のローラ(9)…(10)…(11)…は、下部耐
圧板(7)と第1の中間耐圧板(16)、第1の中間耐圧
板(16)と第2の中間耐圧板(17)、第2の中間耐圧板
(17)の円錐状耐圧板(21)と上部耐圧板(4)の逆円
錐状耐圧板(5)の各間にエラストマー(8)(19)、
(18)(20)、(22)(6)を介して挾圧され、そのエ
ラストマー(8)(19)、(18)(20)、(22)(6)
の第1〜第3ローラ(9)…(10)…(11)…と当接す
る面が転動面となる。尚、各耐圧板(5)(7)(16)
(17)(21)にシート状のエラストマー(6)(8)
(18)〜(20)(22)を貼着する代わりに、第1〜第3
のローラ(9)…(10)…(11)…自体或いはその表面
をエラストマーで形成するようにしてもよい。また、こ
れらエラストマーは必ずしも必要とするものではない。
(23)(23)…は原点復帰性能を発揮させるために、上
下部耐圧板(4)(7)の周縁部間に設けられた復帰用
弾性体で、ゴム体或いはコイルばね等からなり、コイル
ばねを使用する場合には水平に取付けることも可能であ
る。また、減衰性能を発揮させるためには、振動エネル
ギーを吸収する各種ダンパーを設けたり、あるいは前述
のゴム体からなる復元用弾性体(23)…に高減衰ゴムを
用いればよい。更に、図示しないが、第1〜第3のロー
ラ(9)…(10)…(11)…の転動距離を規制するスト
ッパや、第1〜第3のローラ(9)…(10)…(11)…
の転動面に異物が侵入するのを防止するカバーを設けて
もよい。上記ストッパは上下部或いは第1、第2の中間
耐圧板(4)(7)(16)(17)の第1〜第3のローラ
(9)…(10)…(11)…の転動方向に沿って対向する
部位に設ければよく、また、カバーは第1〜第3のロー
ラ(9)…(10)…(11)…を収納する隙間を囲繞する
ように上下部及び第1、第2の中間耐圧板(4)(7)
(16)(17)の全周に設ければよい。尚、この実施例で
は第1のローラ(9)…と第2のローラ(10)…と90゜
の角度をなして二段に積載したが、ローラを各段で所定
の角度をなして三段以上に積載するようにしてもよい。In this vibration isolator (1), (4) is an upper pressure plate such as a steel plate fixed to the lower surface of the upper structure (2), and an inverted conical pressure plate (5) is separately or integrally formed on the lower surface thereof. And an elastomer (6) is attached to the lower surface of the pressure plate (5) by vulcanization bonding or the like. (7) is the lower structure (3)
A sheet-like elastomer (8) is adhered on the upper surface of the lower pressure plate such as a steel plate fixed to the upper pressure plate (4) so as to face the upper pressure plate (4) by vulcanization bonding or the like. (9)… (10)
.. (11) are a plurality of rollers (hereinafter referred to as first, second and third rollers) disposed between the upper pressure plate (4) and the lower pressure plate (7), and located at the lower portion. First roller (9)
And the second roller (10) located in the middle are rotatably supported in parallel by connecting plates (12) and (13), and are stacked at an angle of 90 ° to each other. Further, a third roller (11) which is a feature of the present invention and is located at the upper part.
Have a tapered shape and are arranged radially connected in a horizontal plane. Specifically, the third rollers (11) are rotatably arranged radially by a concentrically arranged large-diameter ring-shaped connecting plate (14) and a small-diameter ring-shaped connecting plate (15). Supported. The materials of the first to third rollers (9) (10) (11) are not limited as long as they can withstand a vertical load. For example, metal, concrete, ceramics, hard plastic, FRP, etc. It is. (1
6) (17) are the first roller (9) ... and the second roller (1).
0), and between the second roller (10) and the third roller (11), an intermediate pressure plate such as a steel plate (hereinafter referred to as first and second intermediate pressure plates). ), Sheet-like elastomers (18), (19) and (20) are adhered to the upper and lower surfaces of the first intermediate pressure plate (16) and the lower surface of the second intermediate pressure plate (17) by vulcanization bonding or the like. . On the upper surface of the second intermediate pressure plate (17), a conical pressure plate (21) is separately or integrally installed facing the inverted conical pressure plate (5) of the upper pressure plate (4),
An elastomer (22) is attached to the upper surface of the pressure plate (21) by vulcanization bonding or the like. Here, each pressure plate (5) (7)
(16) Elastomers of (17) and (21) (6) (8) (18)
The materials (20) and (22) may be any materials having elasticity, such as various rubber materials or plastics. The first to third rollers (9) (10) (11) are a lower pressure plate (7) and a first intermediate pressure plate (16), a first intermediate pressure plate (16) and a second intermediate pressure plate (16). The intermediate pressure plate (17), the conical pressure plate (21) of the second intermediate pressure plate (17) and the inverted conical pressure plate (5) of the upper pressure plate (4) have an elastomer (8) ( 19),
(18), (20), (22) and (6) are sandwiched and the elastomers (8) (19), (18) (20), (22) (6)
The surfaces that come into contact with the first to third rollers (9) (10) (11) are rolling surfaces. Each pressure plate (5) (7) (16)
(17) (21) Sheet-like elastomer (6) (8)
Instead of attaching (18)-(20) (22), first-third
The rollers (9)... (10)... (11)... Or the surface thereof may be formed of an elastomer. These elastomers are not always required.
(23) (23) ... are return elastic members provided between the peripheral edges of the upper and lower pressure-resistant plates (4) and (7) in order to exhibit the origin return performance, and are made of a rubber body or a coil spring. When a coil spring is used, it can be mounted horizontally. Further, in order to exhibit the damping performance, various dampers for absorbing vibration energy may be provided, or a high-damping rubber may be used for the restoring elastic body (23) made of the aforementioned rubber body. Further, although not shown, a stopper for regulating the rolling distance of the first to third rollers (9) (10) (10) (11), and the first to third rollers (9) (10). (11)…
A cover may be provided to prevent foreign matter from entering the rolling surface. The above-mentioned stopper rolls the first to third rollers (9)... (10)... (11) of the upper and lower portions or the first and second intermediate pressure plates (4) (7) (16) (17). The cover may be provided at portions facing each other in the direction, and the upper and lower portions and the first portion surround the gap for accommodating the first to third rollers (9) to (10) to (11). , Second intermediate pressure plate (4) (7)
(16) It may be provided on the entire circumference of (17). In this embodiment, the first roller (9) and the second roller (10) are stacked in two stages at an angle of 90 °. You may make it load more than a step.
上記構成からなる防振装置では、交通振動、他室の設
備からの振動や地震による振動の発生時、回転成分を含
むねじれ動などの振動が入力されると、第3のローラ
(11)…がそのローラ配列中心点Oを回転中心として転
動し、この第3のローラ(11)…の転動により上記ねじ
れ動の回転成分を確実に吸収する。また、上記振動の鉛
直成分については、第1〜第3のローラ(9)…(10)
…(11)…の転動面を形成するエラストマー(6)
(8)(18)〜(20)(22)の弾性変形により吸収さ
れ、水平成分については各耐圧板(7)(16)(17)の
エラストマー(8)(18)〜(20)で形成された転動面
上を第1および第2のローラ(9)…(10)…が転動す
ることにより吸収される。この第1〜第3のローラ
(9)…(10)…(11)…の転動時、エラストマー
(6)(8)(18)〜(20)(22)が弾性変形すること
により転がり抵抗が生じて減衰性能を発揮する。このよ
うに水平及び鉛直成分の他に回転成分を含むねじれ動な
どのあらゆる振動が入力されても、下部構造物(3)か
らの振動を絶縁して上部構造物(2)を静止状態に保持
する。In the vibration isolator having the above-described configuration, when traffic vibration, vibration from equipment in another room or vibration due to an earthquake occurs, and vibration such as a torsional motion including a rotation component is input, the third roller (11) ... Roll around the roller arrangement center point O as a center of rotation, and the rotation of the third rollers (11)... Reliably absorbs the rotational component of the torsional movement. Further, regarding the vertical component of the vibration, the first to third rollers (9)... (10)
An elastomer forming the rolling surface of (11) (6)
(8) It is absorbed by the elastic deformation of (18) to (20) and (22), and the horizontal component is formed by the elastomers (8), (18) to (20) of the pressure plates (7), (16) and (17) The first and second rollers (9)... (10) are absorbed by the rolling on the rolling surface. When the first to third rollers (9) to (10) to (11) roll, the elastomers (6), (8), (18) to (20), and (22) are elastically deformed, so that the rolling resistance is reduced. Occurs to exhibit damping performance. Thus, even if any vibration such as a torsional motion including a rotation component in addition to the horizontal and vertical components is input, the vibration from the lower structure (3) is insulated and the upper structure (2) is kept stationary. I do.
次に、本発明の変形例を第4図及び第5図に示し説明
する。Next, a modification of the present invention will be described with reference to FIGS. 4 and 5. FIG.
まず、第1図乃至第3図に示す実施例の防振装置
(1)では、第1〜第3のローラ(9)…(10)…(1
1)…の転動面をエラストマー(6)(8)(18)〜(2
0)(22)で形成することにより振動の鉛直成分を吸収
するようにしている。ここで、交通振動や他室の設備か
らの振動などの微振動が入力された場合には上記エラス
トマー(6)(8)(18)〜(20)(22)の弾性変形に
より良好な防振性能を発揮するが、地震などの大きな振
動が入力されると対応することが困難となる虞がある。First, in the vibration isolator (1) of the embodiment shown in FIGS. 1 to 3, the first to third rollers (9)... (10).
The rolling surfaces of 1) are made of elastomer (6) (8) (18)-(2)
0) By forming in (22), the vertical component of the vibration is absorbed. Here, when a minute vibration such as a traffic vibration or a vibration from equipment in another room is input, a good vibration proofing is performed by the elastic deformation of the elastomers (6), (8), (18) to (20), and (22). Although it exhibits high performance, it may be difficult to respond when a large vibration such as an earthquake is input.
そこで、第4図及び第5図に示す防振装置は、第1図
乃至第3図に示す実施例に地震などの大きな振動を確実
に吸収し得る手段を付加したものである。尚、第1図乃
至第3図と同一部分には同一参照符号を付して重複説明
は省略する。Therefore, the vibration isolator shown in FIGS. 4 and 5 is obtained by adding a means capable of reliably absorbing a large vibration such as an earthquake to the embodiment shown in FIGS. The same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and redundant description will be omitted.
第4図に示す防振装置(1)は空気ばね(24)を用い
たもので、その上端部が上部構造物(2)の下面に、且
つ、その下端部が上部耐圧板(4)の上面に夫々固着さ
れ、この内部に所望の圧力でもって空気が封入されてい
る。地震などの大きな振動の鉛直成分については空気ば
ね(24)の変形により吸収される。尚、上記空気ばね
(24)の場合、その内部の圧縮空気圧を増減させること
により空気ばね(24)の高さをコントロールして上部構
造物(2)の水平レベル調整が可能である。The vibration isolator (1) shown in FIG. 4 uses an air spring (24), the upper end of which is on the lower surface of the upper structure (2), and the lower end of which is the upper pressure plate (4). Each is fixed to the upper surface, and air is sealed therein at a desired pressure. The vertical component of a large vibration such as an earthquake is absorbed by the deformation of the air spring (24). In the case of the air spring (24), the horizontal level of the upper structure (2) can be adjusted by controlling the height of the air spring (24) by increasing or decreasing the compressed air pressure inside the air spring (24).
また、第5図に示す防振装置(1)は、前述した空気
ばね(24)の代わりにコイルばね(25)を用いたもの
で、具体的には、上部構造物(2)の下面に固着された
取付板(26)と上部打耐圧板(4)の間に複数の鉛直コ
イルばて(27)(27)…を設置すると共に、取付板(2
6)と上部耐圧板(4)の端縁部位間に二本のレバー(2
8)(28)からなる一対のリンク(29)(29)を対向さ
せて配設し、両リンク(29)(29)のレバー(28)(2
8)の中間枢着部(30)(30)間に水平コイルばね(3
1)を張設する。尚、図では一本の水平コイルばね(3
1)を設けているが、二本以上の水平コイルばねを張設
するようにしてもよい。また、上記鉛直コイルばね(2
7)と水平コイルばね(31)は必ずしも併用しなければ
ならないわけではなく、いずれか一方のみを単独使用し
てもよい。地震などの大きな振動の鉛直成分が入力され
ると、鉛直コイルばね(27)(27)…が伸長或いは収縮
すると共に逆に水平コイルばね(31)が収縮或いは伸長
し、上記鉛直コイルばて(27)(27)…及び水平コイル
ばね(31)にその伸長及び収縮する方向と逆の方向に復
元利器が作用する。このようにして地震などの大きな振
動の鉛直成分については鉛直コイルばね(27)(27)…
及び水平コイルばね(31)の弾性変形により吸収され
る。The anti-vibration device (1) shown in FIG. 5 uses a coil spring (25) in place of the air spring (24) described above. A plurality of vertical coil flaps (27), (27)... Are installed between the fixed mounting plate (26) and the upper impact pressure-resistant plate (4).
6) and two levers (2) between the edge parts of the upper pressure plate (4).
8) A pair of links (29) and (29) consisting of (28) are arranged facing each other, and the levers (28) (2
8) Horizontal coil spring (3) between the intermediate pivots (30) (30)
1) Stretch. In the figure, one horizontal coil spring (3
Although 1) is provided, two or more horizontal coil springs may be stretched. In addition, the vertical coil spring (2
7) and the horizontal coil spring (31) do not necessarily have to be used together, and only one of them may be used alone. When a vertical component of a large vibration such as an earthquake is input, the vertical coil springs (27) (27)... Expand or contract, and conversely, the horizontal coil spring (31) contracts or expands. 27) (27) ... and the horizontal coil spring (31) act on the restoring device in the direction opposite to the direction in which it expands and contracts. In this way, for the vertical component of large vibrations such as earthquakes, vertical coil springs (27) (27) ...
And by the elastic deformation of the horizontal coil spring (31).
尚、地震などの大きな振動の水平成分、並びに交通振
動などの微振動の鉛直及び水平成分については第1図乃
至第3図の実施例と同様であるため説明は省略する。The horizontal component of a large vibration such as an earthquake and the vertical and horizontal components of a micro vibration such as a traffic vibration are the same as in the embodiment of FIGS.
上述した第4図及び第5図の防振装置(1)では、水
平、鉛直並びに回転成分を持つあらゆる振動に対して、
交通振動などの微振動のみならず地震などの大きな振動
も確実に吸収して優れた防振性能を発揮する。In the vibration isolator (1) shown in FIGS. 4 and 5 described above, any vibration having horizontal, vertical, and rotational components can be used.
It absorbs not only small vibrations such as traffic vibrations but also large vibrations such as earthquakes, and exhibits excellent vibration isolation performance.
本発明は係る防振装置によれば、上部構造物を水平方
向に揺動自在に支持するローラの上方又は下方で上下部
構造物間に、上部構造物を水平面内での回転方向に揺動
自在に支持する複数のテーパ状ローラを水平面内で放射
状に配置して介在させたから、交通振動や地震の発生
時、テーパ状ローラにより回転成分を含むねじれ動など
の振動も速やかに吸収することができ、簡単な構造によ
り優れた防振性能を発揮する実用的価値大なる防振装置
を提供できる。According to the vibration damping device of the present invention, the upper structure is swung in the direction of rotation in the horizontal plane between the upper and lower structures above or below the roller that supports the upper structure so as to be able to swing in the horizontal direction. A plurality of freely supported tapered rollers are arranged radially in the horizontal plane and interposed, so that when traffic vibrations or earthquakes occur, the tapered rollers can quickly absorb vibrations such as torsional motions containing rotational components. It is possible to provide an anti-vibration device having a practical value and exhibiting excellent anti-vibration performance with a simple structure.
第1図は本発明に係る防振装置の一実施例を示す正面
図、第2図は第1図の防振装置の平面図、第3図は第2
図のI−I線に沿う一部省略部分を含む断面図である。
第4図及び第5図は本発明の変形例を説明するためのも
ので、第4図は第1図の防振装置に空気ばねを付加した
ものを示す正面図、第5図は第1図の防振装置にコイル
ばねを付加したものを示す正面図である。 (1)……防振装置、(2)……上部構造物、 (3)……下部構造物、 (9)(10)……ローラ、(11)テーパ状ローラ。FIG. 1 is a front view showing an embodiment of a vibration isolator according to the present invention, FIG. 2 is a plan view of the vibration isolator of FIG. 1, and FIG.
FIG. 2 is a cross-sectional view including a partly omitted portion along the line II in FIG.
4 and 5 are views for explaining a modification of the present invention. FIG. 4 is a front view showing the vibration isolator of FIG. 1 with an air spring added thereto, and FIG. It is a front view which shows what added the coil spring to the vibration isolator of the figure. (1): anti-vibration device; (2): upper structure; (3): lower structure; (9) (10): roller; (11) tapered roller.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−78373(JP,A) 特開 平1−226952(JP,A) 特開 平2−38177(JP,A) 特開 昭60−125435(JP,A) (58)調査した分野(Int.Cl.6,DB名) E16F 15/02 - 15/04 E04H 9/02 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-78373 (JP, A) JP-A-1-226952 (JP, A) JP-A-2-38177 (JP, A) JP-A-60-78 125435 (JP, A) (58) Field surveyed (Int. Cl. 6 , DB name) E16F 15/02-15/04 E04H 9/02
Claims (1)
物を水平方向に揺動自在に支持する複数のローラを並列
させて挟み込むと共に、前記ローラの上方で上部構造物
との間又は前記ローラの下方で下部構造物との間に、上
部構造物を水平面内での回転方向に揺動自在に支持する
複数のテーパ状ローラを水平面内で放射状に配置して介
在させたことを特徴とする防振装置。A plurality of rollers for horizontally supporting the upper structure so as to be swingable in a horizontal direction are sandwiched between lower structures of the upper structure, and between the lower structure and the upper structure above the rollers. Alternatively, a plurality of tapered rollers that support the upper structure so as to be swingable in the rotational direction in the horizontal plane are interposed by being radially arranged in the horizontal plane between the lower structure and the lower structure. Characteristic anti-vibration device.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2257874A JP2933091B2 (en) | 1990-09-26 | 1990-09-26 | Anti-vibration device |
EP91300313A EP0439272B1 (en) | 1990-01-20 | 1991-01-16 | Vibration-proofing device |
DE69119797T DE69119797D1 (en) | 1990-01-20 | 1991-01-16 | Anti-vibration device |
NZ236812A NZ236812A (en) | 1990-01-20 | 1991-01-18 | Vibration-proofing device comprising rollers to be interposed between an upper and lower structure |
US07/964,465 US5261200A (en) | 1990-01-20 | 1992-10-21 | Vibration-proofing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2257874A JP2933091B2 (en) | 1990-09-26 | 1990-09-26 | Anti-vibration device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04136542A JPH04136542A (en) | 1992-05-11 |
JP2933091B2 true JP2933091B2 (en) | 1999-08-09 |
Family
ID=17312381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2257874A Expired - Lifetime JP2933091B2 (en) | 1990-01-20 | 1990-09-26 | Anti-vibration device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2933091B2 (en) |
-
1990
- 1990-09-26 JP JP2257874A patent/JP2933091B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH04136542A (en) | 1992-05-11 |
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