JPS61294230A - Vibration energy absorbing device - Google Patents
Vibration energy absorbing deviceInfo
- Publication number
- JPS61294230A JPS61294230A JP13343585A JP13343585A JPS61294230A JP S61294230 A JPS61294230 A JP S61294230A JP 13343585 A JP13343585 A JP 13343585A JP 13343585 A JP13343585 A JP 13343585A JP S61294230 A JPS61294230 A JP S61294230A
- Authority
- JP
- Japan
- Prior art keywords
- elastic
- plastic
- plastic member
- energy absorbing
- absorbing device
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
- F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、ｌｌ構造物防振あるいは免震に供される撮動
エネルギ吸収装置に係り、特に、材料の塑性変形を利用
して振動エネルギを吸収するようにした振動エネルギ吸
収装置の改良に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an imaging energy absorption device used for vibration isolation or seismic isolation of structures, and in particular, to a device for absorbing vibration energy by utilizing plastic deformation of a material. The present invention relates to an improvement in a vibration energy absorbing device that absorbs vibration energy.
従来、地震力によって構造物が破壊されるのを防止する
ために、たとえば基礎と構造物本体との間に各種の振動
エネルギ吸収装置を挿設することが行われている。BACKGROUND ART Conventionally, in order to prevent structures from being destroyed by seismic force, various types of vibration energy absorbing devices have been inserted, for example, between a foundation and a structure body.
このような振動エネルギ吸収装置は、エネルギ吸収メカ
ニズムから分類して、流体あるいは粘弾性体の粘性を利
用した粘性方式のものと、材料同志の摩擦を利用した摩
擦方式のもと、材料の塑性変形を利用した塑性方式のも
のとに大別される。Such vibration energy absorption devices are classified based on their energy absorption mechanism: viscous type devices utilize the viscosity of a fluid or viscoelastic body, and friction type devices utilize friction between materials. It is broadly divided into plastic method using .
上記の振動エネルギ吸収装置のうち、塑性方式を採用し
たものは、金属材料の塑性変形を利用したものが多く、
他の方式のものに比べて構造が簡単で、低価格であると
言う利点を備えている。エネルギ吸収に直接供される弾
塑性部材としては通常、鉄材、鉛あるいは鉛系合金材が
使用されている。このうち、特に、鉛系の材料は可塑性
に優れており、大変位を伴う振動においても充分な追随
特性を有している。Among the above-mentioned vibration energy absorption devices, many that adopt the plastic method utilize plastic deformation of metal materials.
It has the advantage of being simpler in structure and cheaper than other methods. Iron, lead, or a lead-based alloy is usually used as the elastoplastic member that directly absorbs energy. Among these materials, lead-based materials in particular have excellent plasticity and have sufficient follow-up characteristics even in vibrations accompanied by large displacements.
ところで、材料の剪断変形による弾塑性特性を利用した
従来の振動エネルギ吸収装置は、一般に。By the way, conventional vibration energy absorbing devices that utilize the elastic-plastic properties of materials due to shear deformation generally do not.
第５図、第６図あるいは第８図に示すように構成されて
いる。すなわち、第５図に示すものは、対象とする２つ
の構造物の部材１．２にそれぞれ固定板３．４を互いに
対面する関係に固定し、これら固定板３，４間に、たと
えば鉛系材料を円柱状に加工してなる弾塑性部材５を介
挿した構造となっている。なお、各固定板３．４と弾塑
性部材５とはろう接着等によって接合されている。また
。It is constructed as shown in FIG. 5, FIG. 6, or FIG. 8. That is, in the structure shown in FIG. 5, fixing plates 3.4 are fixed to members 1.2 of the two target structures in such a manner that they face each other, and between these fixing plates 3 and 4, for example, lead-based It has a structure in which an elastic-plastic member 5 made of a material processed into a cylindrical shape is inserted. Note that each fixed plate 3.4 and the elastic-plastic member 5 are joined by soldering or the like. Also.
第６図に示すものは０弾塑性部材５の両端部を各固定板
３，４に形成された凹部６．７に嵌入させ。In the case shown in FIG. 6, both ends of the elastic-plastic member 5 are fitted into recesses 6.7 formed in each of the fixing plates 3 and 4.
この嵌合によって弾塑性部材５と各固定板３．４とを結
合させるようにしている。さらに、第８図に示すものは
、固定板３．４間に９部材１に対して部材２を支持させ
るための弾性支持体、たとえばラバーベアリング８を介
゛在させるとともにラバーベアリング８に軸方向に延び
る貫通孔９を設け。Through this fitting, the elastic-plastic member 5 and each fixing plate 3.4 are coupled together. Furthermore, in the structure shown in FIG. 8, an elastic support, for example, a rubber bearing 8, is interposed between the fixed plates 3 and 4 to support the member 2 with respect to the 9 member 1, and the rubber bearing 8 is provided with an axial direction. A through hole 9 is provided that extends to.
この貫通孔９内に断面が矩形の螺旋状コイル１０で巻か
れた弾塑性部材５を収容したものとなっている。なお、
ラバーベアリング８は、金属板１１とゴム板１２とを交
互に積層接合したものとなっている。This through hole 9 accommodates an elastoplastic member 5 wound with a helical coil 10 having a rectangular cross section. In addition,
The rubber bearing 8 is made by laminating and bonding metal plates 11 and rubber plates 12 alternately.
これらの振動エネルギ吸収装置にあって、地震等によっ
て構造物が振動して１部材１．２間に相対変位が生じる
と１部材１．２間に存在している弾塑性部材５が強制変
位を受ける。この時２弾塑性部材５が塑性変形すると、
その塑性変形に必要な仕事量に等しいエネルギ損失が生
じ、この結果として部材１，２間の振動エネルギが吸収
され。In these vibration energy absorbing devices, when a structure vibrates due to an earthquake or the like and a relative displacement occurs between one member 1.2, the elastic-plastic member 5 existing between one member 1.2 undergoes forced displacement. receive. At this time, when the second elastic-plastic member 5 is plastically deformed,
An energy loss equal to the amount of work required for its plastic deformation occurs, resulting in absorption of the vibrational energy between the parts 1, 2.
構造物全体の振動応答が減少される。The vibration response of the entire structure is reduced.
しかしながら、上記のように構成された従来の振動エネ
ルギ吸収装置にあっては次のような問題があった。However, the conventional vibration energy absorbing device configured as described above has the following problems.
すなわち、第５図および第６図に示したものにあっては
１部材１．２の図中横方向の相対変位によって弾塑性部
材５が繰り返し横方向の変形を受けると、固定板３．４
と弾塑性部材５との間の局部的拘束に伴う固定板３，４
に近い部分と中央部分との間の曲げおよび引張り状態の
相違により。That is, in the case shown in FIGS. 5 and 6, when the elastic-plastic member 5 is repeatedly deformed in the lateral direction due to the relative displacement of the member 1.2 in the lateral direction in the drawing, the fixing plate 3.4
Fixing plates 3, 4 due to local restraint between and elastic-plastic member 5
Due to the difference in bending and tensile conditions between the near part and the central part.
弾塑性部材５は比較的少ない繰り返し数で第７図に示す
ように固定板３，４に近い部分Ｘがくびれ。As shown in FIG. 7, the elastic-plastic member 5 becomes constricted at a portion X near the fixing plates 3 and 4 after a relatively small number of repetitions.
中央部分Ｙが膨出した形状となる。このため、塑性変形
に要する抵抗力が次第に小さくなり、エネルギ吸収能力
が減少する。そして、最終的にはくびれ部分で弾塑性部
材５が破断して、エネルギ吸収装置としての機能を喪失
する問題があった。一方、第８図に示すものは１弾塑性
部材５の外周に螺旋状コイル１０を巻き付けているので
、第７図で説明したような問題は少なくなる。しかし、
このような構造であると、構造物の支持材であるラバー
ベアリング８内にエネルギ吸収装置全体を収容するよう
にしているので、エネルギ吸収装置全体の保守あるいは
交換が非常に面倒なものとなり。The central portion Y has a bulged shape. Therefore, the resistance force required for plastic deformation gradually decreases, and the energy absorption capacity decreases. There is a problem in that the elastic-plastic member 5 eventually breaks at the constricted portion and loses its function as an energy absorbing device. On the other hand, in the case shown in FIG. 8, a helical coil 10 is wound around the outer periphery of one elastic-plastic member 5, so that the problem described in FIG. 7 is reduced. but,
With such a structure, the entire energy absorbing device is housed within the rubber bearing 8, which is a support material for the structure, so maintenance or replacement of the entire energy absorbing device becomes extremely troublesome.
弾塑性部材５のエネルギ吸収性能低下による耐震性の脆
弱化に速やかに対応できない問題がある。There is a problem in that it is not possible to promptly respond to weakening of the earthquake resistance due to a decrease in the energy absorption performance of the elastic-plastic member 5.
すなわち、＠度かの地震あるいは振動により弾塑性部材
５が塑性変形を繰り返すと２弾塑性部材５の組織が変化
してエネルギ吸収能力が低下する。That is, when the elastoplastic member 5 undergoes repeated plastic deformation due to earthquakes or vibrations, the structure of the elastoplastic member 5 changes and the energy absorption capacity decreases.
したがって、一般的には、エネルギ吸収装置全体を検査
し、所定の特性以下の場合には取り換える必要がある。Therefore, it is generally necessary to inspect the entire energy absorbing device and replace it if the characteristics are below a predetermined value.
このような交換を行なわないと９次回の地震の場合に所
定の耐震性および信頼性が得られず、構造物の安全性に
重大な影響を及ぼす。If such replacement is not performed, the required earthquake resistance and reliability will not be achieved in the event of the 9th earthquake, which will seriously affect the safety of the structure.
しかし、第８図に示す構造であると、エネルギ吸収装置
全体がラバーベアリング８内に位置しているので、エネ
ルギ吸収装置の特性を簡単に検査することができない。However, in the structure shown in FIG. 8, since the entire energy absorbing device is located within the rubber bearing 8, the characteristics of the energy absorbing device cannot be easily inspected.
このため、交換のタイミングを誤る虞れが多分にあった
。また９弾塑性部材５の径方向の変形を拘束するととも
に剪断変形を許すために、螺旋状コイル１０を弾塑性部
材５の外周に巻回しているのであるが、螺旋状コイル１
０として、断面矩形のものを用いているので２部材１゜
２間の相対変位で弾塑性部材５が相対的な変形力を受け
て変形したとき、螺旋状コイル１０もそれぞれのコイル
間で相対変形を受ける。この場合。For this reason, there was a high possibility that the timing of replacement would be incorrect. Further, in order to restrain the radial deformation of the elastoplastic member 5 and to allow shear deformation, a helical coil 10 is wound around the outer circumference of the elastoplastic member 5.
Since a coil with a rectangular cross section is used as 0, when the elastic-plastic member 5 is deformed by receiving a relative deformation force due to the relative displacement between the two members 1°2, the helical coil 10 also has a relative displacement between the two coils. undergo transformation. in this case.
螺旋状コイル１０は連続しているので、この螺旋状コイ
ル１０にはねじり力が作用することになる。Since the helical coil 10 is continuous, a twisting force will act on the helical coil 10.
前述のように螺旋状コイル１０は弾塑性部材５の径方向
の変形力を受持っているので、結局、この力と上述した
ねじり力とを加えた過大な力が螺旋状コイル１０に作用
することになり、螺旋状コイル１０が破断する虞れがあ
る。もし破断した場合には径方向の変形に対しての拘束
力がなくなるので、第５図および第６図に示した装置と
同様の問題が発生することになる。As mentioned above, since the helical coil 10 takes charge of the radial deformation force of the elastic-plastic member 5, an excessive force, which is the sum of this force and the above-mentioned torsional force, acts on the helical coil 10. As a result, there is a possibility that the helical coil 10 may break. If it breaks, there will be no restraining force against radial deformation, resulting in the same problem as in the devices shown in FIGS. 5 and 6.
本発明は、このような事情に鑑みてなされたもので、そ
の目的とするところは、エネルギ吸収に供される弾塑性
部材のエネルギ吸収機能をより長期に厘って持続させる
ことができるとともに保守点検あるいは交換の容易な振
動エネルギ吸収装置を提供するとことにある。The present invention has been made in view of these circumstances, and its purpose is to be able to maintain the energy absorption function of an elastic-plastic member used for energy absorption for a longer period of time, and to reduce maintenance costs. It is an object of the present invention to provide a vibration energy absorbing device that is easy to inspect or replace.
（発明の概要）
本発明によれば、相対変位が生じ得る２つの部材にそれ
ぞれ支持された第１および第２の固定板と、この第１お
よび第２の固定板間に挿設された可塑性を有する弾塑性
部材と、この弾塑性部材より材料強度の大きい材料で形
成され両端が第１および第２の固定板に固定されるとと
もに上記弾塑性部材の外周に螺旋状に巻回された断面が
ほぼ円形の単線またはより線からなる補強部材とを備え
た振動エネルギ吸収装置が提供される。(Summary of the Invention) According to the present invention, first and second fixing plates each supported by two members capable of relative displacement, and a plastic plate inserted between the first and second fixing plates. an elasto-plastic member having a elasto-plastic member, and a cross-section formed of a material having higher material strength than the elasto-plastic member, having both ends fixed to the first and second fixing plates and spirally wound around the outer periphery of the elasto-plastic member. A vibration energy absorbing device is provided, which includes a reinforcing member made of a substantially circular solid wire or a stranded wire.
地震等のように２つの部材間に相対変位が生じるような
振動力が加わると１弾塑性部材は上記２つの部材間の相
対変位量に応じた塑性変形を繰り返し受ける。この時１
弾塑性部材には１両端部にくびれ部を、また中央部に膨
出部を形成させる力が作用する。しかし１弾塑性部材の
外周には前記補強部材が螺旋状に巻回装着されているの
で、この補強部材が弾塑性部材の剪断変形は許すが弾塑
性部材の径方向の変形を拘束してくびれ部や膨出部の発
生を防止する。このように０弾塑性部材の両端部にくび
れ部が発生するのを防止できるので。When a vibratory force that causes a relative displacement between two members, such as an earthquake, is applied, one elastic-plastic member repeatedly undergoes plastic deformation in accordance with the amount of relative displacement between the two members. At this time 1
A force acts on the elastic-plastic member to form a constriction at both ends and a bulge at the center. However, since the reinforcing member is spirally wound around the outer circumference of the elasto-plastic member 1, this reinforcing member allows the shear deformation of the elasto-plastic member, but restricts the radial deformation of the elasto-plastic member and causes constriction. Prevents the occurrence of bumps and bulges. In this way, it is possible to prevent constrictions from occurring at both ends of the zero elastic-plastic member.
このくびれ部の発生によって少ない繰り返し数の間に弾
塑性部材が破断するのを防止でき、結局。The occurrence of this constriction prevents the elastic-plastic member from breaking during a small number of repetitions, and eventually.
長期間に亙って弾塑性部材に良好なエネルギ吸収機能を
発揮させることができる。この場合、補強部材は断面が
ほぼ円形の単線またはより線で形成されているので９弾
塑性部材の塑性変形に伴って螺旋状に巻いである補強部
材間にねじり力が加わっても、このねじり力を柔軟に吸
収し、また弾塑性部材の径方向の変形力に対し９周方向
に巻かれである補強部材が互いに引張りあって拘束し、
結果として補強部材には引張り力以外の大きな応力は生
じ難い。したがって、結果的に、補強部材に悪影響を与
える力は生じ難くなり、その強度に充分な余裕を持つこ
とができ、これによって弾塑性部材の強度も増加するこ
とになり、エネルギ吸収装置としてなお一層の長寿命化
を図ることができる。また、他の要素とは独立して設置
することができるので、地震終了後に弾塑性部材の現在
の状態や特性を検査することが容易となり、この結果。The elastic-plastic member can exhibit a good energy absorption function over a long period of time. In this case, since the reinforcing member is formed of a single wire or a stranded wire with an approximately circular cross section, even if a torsional force is applied between the reinforcing members that are spirally wound due to the plastic deformation of the elastoplastic member, this torsional The reinforcing members, which are wound in nine circumferential directions, pull each other and restrain against the radial deformation force of the elastic-plastic member, which flexibly absorbs the force.
As a result, large stresses other than tensile force are unlikely to occur in the reinforcing member. Therefore, as a result, forces that adversely affect the reinforcing member are less likely to occur, and the strength can have sufficient margin, which increases the strength of the elastic-plastic member, making it even better as an energy absorbing device. It is possible to extend the service life of the Additionally, since it can be installed independently of other elements, it becomes easier to inspect the current condition and properties of the elastoplastic member after the earthquake.
交換のタイミングの誤り防止にも寄与できる。さらに、
他の装置、たとえばラバーベアリングのような荷重支持
装置とは独立して設置することができるので、装置の交
換の容易化にも寄与できる。This can also contribute to preventing errors in replacement timing. moreover,
Since it can be installed independently of other devices, such as load supporting devices such as rubber bearings, it can also contribute to facilitating device replacement.
以下２本発明の実施例を図面を参照しながら説明する。 Two embodiments of the present invention will be described below with reference to the drawings.
第１図は９本発明の一実施例に係る振動エネルギ吸収装
置を実際に対象とする２つの構造物の部材２）．２２間
に設置した例の側面図である。すなわち、このエネルギ
吸収装置は２部材２）゜２２に固定板２３．２４を互い
に対面する関係に図示しないボルト等で固定するととも
に上記固定板２３．２４間に、第２図に示すようにたと
えば鉛で円柱状に形成された弾塑性部材２５を挿設して
いる。そして１弾塑性部材２５と各固定板２３゜２４と
は、たとえばろう接着によって接合されている。FIG. 1 shows two structural members 2) to which a vibration energy absorbing device according to an embodiment of the present invention is actually applied. 22 is a side view of an example installed between 22. That is, in this energy absorbing device, fixing plates 23 and 24 are fixed to two members 2) 22 so as to face each other with bolts (not shown), and between the fixing plates 23 and 24, for example, as shown in FIG. An elastic-plastic member 25 made of lead and formed into a cylindrical shape is inserted. The first elastoplastic member 25 and each of the fixing plates 23 and 24 are bonded, for example, by soldering.
弾塑、性部材２５の外周には第２図にも示すように１弾
塑性部材２５の外周面に密接する関係に。As shown in FIG. 2, the outer periphery of the elastic-plastic member 25 is in close contact with the outer circumferential surface of the elastic-plastic member 25.
断面円形の補強部材２６が螺旋状に巻回されており、こ
の補強部材２６０両端は固定板２３．２４にそれぞれ固
定されている。上記補強部材２６は。A reinforcing member 26 having a circular cross section is spirally wound, and both ends of the reinforcing member 260 are fixed to fixed plates 23 and 24, respectively. The reinforcing member 26 is as follows.
この実施例の場合１弾塑性部材２５を構成している鉛よ
り引張り強度の大きい鉄で、かつ弾塑性部材２５の径方
向の変形に坑することができる径に形成された単線が用
いられている。In this embodiment, a single wire made of iron having a tensile strength higher than lead constituting the elastic-plastic member 25 and having a diameter that can withstand the radial deformation of the elastic-plastic member 25 is used. There is.
このような構成であると、地震等によって部材２）．２
２間に図中横方向の相対変位が生じると。With such a configuration, members 2) may be damaged due to earthquakes, etc. 2
If a relative displacement occurs between the two in the lateral direction in the figure.
これに追従して補強部材２６によって形成された螺旋筒
状部の軸心線が傾き２弾塑性部材２５は。Following this, the axis of the spiral cylindrical portion formed by the reinforcing member 26 is inclined, and the elastic-plastic member 25 is tilted.
第３図に示すような変形を繰り返し受ける。このため１
弾塑性部材２５内で塑性変形に必要なエネルギ消費が起
こり、このエネルギ消費によって撮動エネルギ吸収装置
としての機能が発揮される。It undergoes repeated deformations as shown in FIG. For this reason 1
Energy consumption necessary for plastic deformation occurs within the elastic-plastic member 25, and the function as an imaging energy absorption device is exhibited by this energy consumption.
そして、この場合には、繰り返し変形によって弾塑性部
材２５にくびれ部や膨出部が発生しようとしても、この
発生力が補強部材２６によって形成された螺旋コイルに
よって抑えられるので、結局、くびれ部や膨出部の発生
が抑制される。このように、特に１弾塑性部材２５の両
端部に起こり易いくびれの発生を防止できるので、短期
間に弾塑性部材２５が破断するのを防止でき、エネルギ
吸収機能を長期に亙って良好に発揮させることができる
。また９弾塑性部材２５の外周に螺旋状に巻回された補
強部材２６は、その断面が円形に形成されているので９
弾塑性部材２５が塑性変形したとき、各螺旋コイル間に
ねじれ力が加わっても。In this case, even if a constriction or a bulge is generated in the elastic-plastic member 25 due to repeated deformation, this generated force is suppressed by the helical coil formed by the reinforcing member 26, so that the constriction or bulge will eventually occur. The occurrence of bulges is suppressed. In this way, it is possible to prevent the occurrence of constrictions that are likely to occur particularly at both ends of the first elastoplastic member 25, thereby preventing the elastoplastic member 25 from breaking in a short period of time, and maintaining good energy absorption function over a long period of time. It can be demonstrated. Further, the reinforcing member 26 spirally wound around the outer periphery of the elastic-plastic member 25 has a circular cross section.
Even if a torsional force is applied between each helical coil when the elastic-plastic member 25 is plastically deformed.
この力を柔軟に吸収し９弾塑性部材２５の周方向に巻か
れである補強部材２６には弾塑性部材２５の径方向の変
形による引張り力以外の大きな応力は生じ難い。このた
め、変形防止部材として矩形断面の螺旋状コイルを用い
たものに比べて、結果、的に補強部材２６の強度に余裕
を持たせることができ、これによって装置全体としてな
お一層の長寿命化を図ることができる。また、このエネ
ルギ吸収装置を実際に設置するときには他の要素とは無
関係に設置することができる。このため、地震が収まっ
た時点で速やかに点検、特性検査等を行うことができる
ので、交換のタイミングの誤り防止にも寄与できる。さ
らに、他の要素とは独立して設置することができるので
、交換の容易化にも寄与でき、結局、前述した効果を発
揮させることができる。A large stress other than the tensile force due to the radial deformation of the elastic-plastic member 25 is unlikely to be generated in the reinforcing member 26, which flexibly absorbs this force and is wound in the circumferential direction of the elastic-plastic member 25. Therefore, compared to the case where a helical coil with a rectangular cross section is used as a deformation prevention member, it is possible to give the reinforcing member 26 more strength, which further extends the life of the entire device. can be achieved. Furthermore, when actually installing this energy absorbing device, it can be installed independently of other elements. Therefore, inspections, characteristic tests, etc. can be carried out promptly after the earthquake has subsided, which can also contribute to preventing mistakes in the timing of replacement. Furthermore, since it can be installed independently of other elements, it can contribute to ease of replacement, and as a result, the above-mentioned effects can be achieved.
なお１本発明は、上述した実施例に限定されるものでは
なく１種々変形することができる。すなわち、上述した
実施例では９弾塑性部材２５の両端面を各固定板２３．
２４にろう接着等で固定しているが、第４図に示すよう
に各固定板２３゜２４にそれぞれ凹部２７．２８を設け
、これら凹部２７，２８に弾塑性部材２５の両端部を、
この両端部外周に位置している補強部材２６の端部と一
体に嵌入させるさせることによって弾塑性部材２５と各
固定板２３．２４との接合を行うようにしてもよい。こ
のようにすると１両者の接合をより強固なものにでき、
装置としての信頼性を向上させることができる。また１
弾塑性部材２５の形状は円柱状に限らず角柱状でも良く
、その径および長さはこのエネルギ吸収装置を実際に設
置するときの総数、対象とする構造物の質量、構造物の
剛性、必要とされるエネルギ吸収量および使用する弾塑
性部材の塑性特性によって決定されることは勿論である
。また１弾塑性部材を形成する材料も鉛に限らず、鉛系
合金や鉄等を使用できることは勿論である。また、補強
部材の断面は、完全な円形に限らずほぼ円形であればよ
く、さらにはより線でも同様の効果を得ることができる
。また。Note that the present invention is not limited to the embodiments described above, and can be modified in various ways. That is, in the embodiment described above, both end surfaces of the nine elastic-plastic members 25 are connected to each fixing plate 23.
As shown in FIG. 4, recesses 27 and 28 are provided in each of the fixing plates 23 and 24, and both ends of the elastic-plastic member 25 are inserted into these recesses 27 and 28.
The elastic-plastic member 25 and each fixing plate 23, 24 may be joined by integrally fitting the ends of the reinforcing member 26 located on the outer periphery of both ends. In this way, the bond between the two can be made stronger,
The reliability of the device can be improved. Also 1
The shape of the elastoplastic member 25 is not limited to a cylindrical shape, but may be a prismatic shape, and its diameter and length will depend on the total number when this energy absorption device is actually installed, the mass of the target structure, the rigidity of the structure, and the necessity. Of course, it is determined by the amount of energy absorbed and the plastic properties of the elastic-plastic member used. Further, the material for forming the first elastic-plastic member is not limited to lead, and it goes without saying that lead-based alloys, iron, and the like can be used. Further, the cross section of the reinforcing member is not limited to a perfect circle, but may be approximately circular, and even a stranded wire can provide the same effect. Also.
上述した実施例では荷重支持手段に格別触れていないが
、ラバーベアリングのように振動変形時も含めて荷重支
持時に縮む荷重支持機構を用いる場合には、２つの固定
板の何れかと、これが支持される部材との間に縮み分を
吸収する手段、たとえば弾性機構を介在させるか、縮み
分に相当する隙間を設けるようにすればよい。Although the load supporting means is not specifically mentioned in the above embodiments, when using a load supporting mechanism such as a rubber bearing that contracts when supporting a load, including during vibration deformation, it is supported by one of the two fixed plates. A means for absorbing the shrinkage, such as an elastic mechanism, may be interposed between the member and the member, or a gap corresponding to the shrinkage may be provided.
第１図は本発明の一実施例に係る振動エネルギ吸収装置
を実際に２つの部材間に設置したときの側面図、第２図
は同装置だけを取り出して示す縦断面図、、第３因は同
装置がエネルギ吸収動作を行っているときの断面図、第
４図は本発明の他の実施例に係る振動エネルギ吸収装置
の縦断面図、第５図および第６図はそれぞれ従来の撮動
エネルギ吸収装置の縦断面図、第７図は上記従来装置の
問照点を説明するための図、第８図は従来の振動エネル
ギ吸収装置のさらに別の例の縦断面図である。
２）．２２・・・部材、２３．２４・・・固定板、２５
・・・弾塑性部材、２６・・・補強部材。
出願人代理人 弁理士 鈴江武彦
′第２図
第７図 １Fig. 1 is a side view of a vibration energy absorbing device according to an embodiment of the present invention when it is actually installed between two members, and Fig. 2 is a vertical sectional view showing only the device taken out. 4 is a longitudinal sectional view of a vibration energy absorbing device according to another embodiment of the present invention, and FIGS. 5 and 6 are conventional photographic views, respectively. FIG. 7 is a longitudinal cross-sectional view of the dynamic energy absorbing device. FIG. 7 is a diagram for explaining points of interest in the conventional vibration energy absorbing device. FIG. 8 is a vertical cross-sectional view of yet another example of the conventional vibration energy absorbing device. 2). 22... Member, 23.24... Fixed plate, 25
... Elastoplastic member, 26... Reinforcement member. Applicant's agent Patent attorney Takehiko Suzue 'Figure 2 Figure 7 1
Claims (2)
するためのものであって、前記各部材にそれぞれ支持さ
れた第１および第２の固定板と、この第１および第２の
固定板間に挿設された可塑性を有する弾塑性部材と、こ
の弾塑性部材より材料強度の大きい材料で形成され両端
が前記第１および第２の固定板に固定されるとともに前
記弾塑性部材の外周に螺旋状に巻回された断面がほぼ円
形の単線またはより線からなる補強部材とを具備してな
ることを特徴とする振動エネルギ吸収装置。(1) First and second fixing plates that are for absorbing kinetic energy during relative movement between two members and are supported by each of the members, respectively, and the first and second fixing plates. an elastoplastic member having plasticity inserted between the plates, and an outer periphery of the elastoplastic member formed of a material having higher material strength than that of the elastoplastic member, both ends of which are fixed to the first and second fixing plates. 1. A vibration energy absorbing device comprising: a reinforcing member made of a single wire or a stranded wire having a substantially circular cross section and spirally wound around the reinforcing member.
選ばれた１種で形成されたものであることを特徴とする
特許請求の範囲第１項記載の振動エネルギ吸収装置。(2) The vibration energy absorbing device according to claim 1, wherein the elastic-plastic member is made of one selected from lead, a lead-based alloy, and iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13343585A JPS61294230A (en) | 1985-06-19 | 1985-06-19 | Vibration energy absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13343585A JPS61294230A (en) | 1985-06-19 | 1985-06-19 | Vibration energy absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61294230A true JPS61294230A (en) | 1986-12-25 |
Family
ID=15104704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13343585A Pending JPS61294230A (en) | 1985-06-19 | 1985-06-19 | Vibration energy absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61294230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738135A (en) * | 2013-11-29 | 2014-04-23 | 天津博信汽车零部件有限公司 | Suspension spring mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249609A (en) * | 1975-10-14 | 1977-04-20 | New Zealand Inventions Dev | Absorbing matter for periodic shearing energy |
-
1985
- 1985-06-19 JP JP13343585A patent/JPS61294230A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249609A (en) * | 1975-10-14 | 1977-04-20 | New Zealand Inventions Dev | Absorbing matter for periodic shearing energy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738135A (en) * | 2013-11-29 | 2014-04-23 | 天津博信汽车零部件有限公司 | Suspension spring mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4731966A (en) | Vibration energy absorber device | |
| JPS6117984B2 (en) | ||
| EP2921612B1 (en) | Energy dissipating device | |
| JP2001509578A (en) | Energy dissipator | |
| JPS5962742A (en) | Device for absorbing energy | |
| US20060253057A1 (en) | Buckling restrained structural brace assembly | |
| JPS61176776A (en) | Cyclic shearing energy absorbing apparatus | |
| US4483426A (en) | Coiled damper element | |
| EP3614017A1 (en) | Seismic isolation support device | |
| JP4623696B2 (en) | Damping device for parallel cable | |
| JPS61294230A (en) | Vibration energy absorbing device | |
| JPS62228729A (en) | Vibration energy absorbing device | |
| JPS61294234A (en) | Vibration energy absorbing device | |
| JPS62155343A (en) | Vibration energy absorbing device | |
| JPS61294232A (en) | Vibration energy absorbing device | |
| JP3503712B2 (en) | Lead encapsulated laminated rubber | |
| JP2006207680A (en) | Laminated rubber supporter | |
| JPS61290244A (en) | Vibration energy absorbing device | |
| JPH0949209A (en) | Vibration isolation method of bridge and construction of vibration isolation | |
| JPS61294231A (en) | Vibration energy absorbing device | |
| JPS61294233A (en) | Vibration energy absorbing device | |
| JPS62155344A (en) | Vibration energy absorbing device | |
| JPS61290245A (en) | Vibration energy absorbing device | |
| JPS62220734A (en) | Vibrational energy absorbing device | |
| JPS62220735A (en) | Vibrational energy absorbing device |