JPH0925989A - Vibration absorbing device and vibration absorbing structure - Google Patents
Vibration absorbing device and vibration absorbing structureInfo
- Publication number
- JPH0925989A JPH0925989A JP17724395A JP17724395A JPH0925989A JP H0925989 A JPH0925989 A JP H0925989A JP 17724395 A JP17724395 A JP 17724395A JP 17724395 A JP17724395 A JP 17724395A JP H0925989 A JPH0925989 A JP H0925989A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- damper
- piston
- dimensional acceleration
- acceleration sensor
- 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
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、衝撃を弱め機械的
振動を減衰させる吸振装置及び吸振構造に関し、特に制
振・免震を必要とされる筐体、構造物等を支持する部分
に取付けられる吸振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration absorbing device and a vibration absorbing structure for reducing impacts and dampening mechanical vibrations, and in particular, it is attached to a portion for supporting a casing, a structure or the like which requires vibration damping / isolation. The present invention relates to a vibration absorbing device.
【０００２】[0002]
【従来の技術】従来、一般に用いられていた吸振装置
（例えば実開平２−４６１４２号公報参照）は、模式的
に図６のように示すことができる。図６において、吸振
装置１は構造物９と固定床５との間に設けられ、構造物
９は主質量２がばね３を介して防振床４上に支持され、
防振床４に固定された補助質量８と固定床５との間に並
列に設置されたダンパ６とばね７とを有して構成され
る。2. Description of the Related Art A conventional vibration absorbing device (for example, see Japanese Utility Model Laid-Open No. 2-46142) can be schematically shown in FIG. In FIG. 6, the vibration absorber 1 is provided between the structure 9 and the fixed floor 5, and the main mass 2 of the structure 9 is supported on the vibration isolation floor 4 via the spring 3.
The auxiliary mass 8 fixed to the vibration-proof floor 4 and the fixed floor 5 have a damper 6 and a spring 7 installed in parallel.
【０００３】吸振装置１は、補助質量８の質量ｍ、ばね
７のばね定数ｋ、ダンパ６の減衰係数ｃに基づく減衰比The vibration absorber 1 has a damping ratio based on the mass m of the auxiliary mass 8, the spring constant k of the spring 7, and the damping coefficient c of the damper 6.
【０００４】 [0004]
【０００５】を定めることにより、構造物９の振動状態
の適宜減衰を可能とする。By defining the above, the vibration state of the structure 9 can be appropriately damped.
【０００６】しかし、補助質量８の質量ｍ、ばね７のば
ね定数ｋ、ダンパ６の減衰係数ｃはそれぞれ固定化され
ているため減衰比ζは一定の値となり、そのため吸振装
置１を振動状態の変化する構造物９の主として高周波領
域の制振や、固定床５が振動する地震などの主として低
周波領域の免震に適応されるためには、その振動を広い
振動数にわたり効果的に減衰できない。However, since the mass m of the auxiliary mass 8, the spring constant k of the spring 7, and the damping coefficient c of the damper 6 are fixed, the damping ratio ζ becomes a constant value, so that the vibration absorber 1 is kept in a vibrating state. The vibration cannot be effectively damped over a wide range of frequencies in order to be applied to the vibration control of the changing structure 9 mainly in the high frequency range and the seismic isolation mainly in the low frequency range such as an earthquake in which the fixed floor 5 vibrates. .
【０００７】この減衰比ζを変化させ振動体に対して最
適な振動減衰効果を付与する目的で図５に示す吸振装置
１０（特開平４−１９１５４３号公報）が採用されてい
る。固定床上に吸振装置１０を介して構造物が設置され
る。吸振装置１０は、図５に示すが如く、上板１３と下
板１１との間に複数枚の中板１２を積層し、各板間の中
央部にダンパ６が設けられ、各板間のダンパ６のまわり
にはリング状ゴム体等からなるばね７が介装され、下板
１１及び中板１２の中央部に形成されたダンパ室１４
と、最上層のダンパ室１４から各中板１２を貫通し最下
層のダンパ室１４に連なる連通路１５と、上下の板間に
形成される絞り路１６と、絞り路１６を挟む上下の板面
に電気絶縁体１７を介して形成される一対の電極１８，
１９と、各絞り路１６の周辺において各中板を貫通する
排液路２０と、下板１１において最下層の絞り路１６の
まわりに連通し、最上層のダンパ室１４に連通する循環
路２１と、循環路２１の中間路に設けられた循環ポンプ
２２とを有し、循環ポンプ２２によりダンパ室１４に電
気粘性体を充填する。構造物の振動状態に応じて電極１
８，１９間の電圧を制御してダンパ６の減衰係数を最適
な値にすることができる。A vibration absorbing device 10 (Japanese Patent Laid-Open No. 4-191543) shown in FIG. 5 is employed for the purpose of changing the damping ratio ζ and imparting an optimum vibration damping effect to the vibrating body. The structure is installed on the fixed floor via the vibration absorbing device 10. As shown in FIG. 5, the vibration absorbing device 10 has a plurality of middle plates 12 stacked between an upper plate 13 and a lower plate 11, and a damper 6 is provided at the center between the plates, so that the space between the plates is increased. A spring 7 made of a ring-shaped rubber body or the like is interposed around the damper 6, and a damper chamber 14 formed in the central portion of the lower plate 11 and the middle plate 12
And a communication passage 15 penetrating each middle plate 12 from the uppermost damper chamber 14 and connected to the lowermost damper chamber 14, a throttle passage 16 formed between the upper and lower plates, and upper and lower plates sandwiching the throttle passage 16. A pair of electrodes 18 formed on the surface via an electric insulator 17.
19, a drainage passage 20 penetrating each middle plate around each throttle passage 16, and a circulation passage 21 communicating with the lower plate 11 around the lowermost throttle passage 16 and with the uppermost damper chamber 14. And a circulation pump 22 provided in an intermediate passage of the circulation passage 21, and the damper chamber 14 is filled with the electroviscous body by the circulation pump 22. Electrode 1 according to the vibration state of the structure
The damping coefficient of the damper 6 can be set to an optimum value by controlling the voltage between 8 and 19.
【０００８】[0008]
【発明が解決しようとする課題】吸振装置１０は横方向
の振動吸収は可能であるが、縦方向に振動が加わった場
合、各ダンパ室１４の周辺において上下の板間に形成さ
れる絞り路１６を挟む上下の板間に電気粘性流体５８を
介して形成される一対の電極１８，１９の間隔が広がり
または狭まり電気粘性流体５８の粘性の制御が不可能に
なる場合が生じる。また、縦方向に過度の外力が加わる
と絞り路１６の隙間が零になり電極１８、１９が接触し
破損する場合がある。The vibration absorbing device 10 is capable of absorbing vibration in the lateral direction, but when vibration is applied in the longitudinal direction, a throttle passage formed between the upper and lower plates around each damper chamber 14. In some cases, the gap between the pair of electrodes 18 and 19 formed via the electrorheological fluid 58 between the upper and lower plates sandwiching 16 is widened or narrowed to make it impossible to control the viscosity of the electrorheological fluid 58. Further, when an excessive external force is applied in the vertical direction, the gap in the throttle passage 16 becomes zero, and the electrodes 18 and 19 may come into contact with each other and be damaged.
【０００９】従って、上記吸振装置１は横方向の振動を
広い振動数の範囲にわたり効果的に減衰出来るが、さら
に縦方向の振動が加わった場合はその機能を充分に果た
すことが出来ず、最悪の場合ダンパ破損の危険性を持
つ。Therefore, the vibration absorbing device 1 can effectively attenuate the lateral vibration over a wide range of frequencies, but when further vertical vibration is applied, the function cannot be sufficiently fulfilled, which is the worst case. In the case of, there is a risk of damaging the damper.
【００１０】[0010]
【課題を解決するための手段】本発明の吸振装置は、電
気粘性流体が満たされ密閉されたシリンダー状のダンパ
本体と、このダンパ本体内を摺動するピストンと、この
ピストンに接続され先端が前記ダンパ本体の前端から突
出するピストンロッドと、前記ピストンに一定方向の力
を与えるばねと、前記ダンパ本体の内面に設けられた第
１の電極と、前記ピストンの側面に設けられ前記第１の
電極と協働して前記ダンパ本体の内面と前記ピストンの
側面の間の絞り路を通る前記電気粘性流体に電界を印加
する第２の電極とを備えている。SUMMARY OF THE INVENTION A vibration absorbing device of the present invention comprises a cylindrical damper main body filled with an electrorheological fluid and sealed, a piston sliding in the damper main body, and a tip connected to the piston. A piston rod protruding from the front end of the damper body, a spring that applies a force in a fixed direction to the piston, a first electrode provided on an inner surface of the damper body, and a first electrode provided on a side surface of the piston. A second electrode that cooperates with the electrode to apply an electric field to the electrorheological fluid that passes through a throttled passage between the inner surface of the damper body and the side surface of the piston.
【００１１】本発明の吸振構造は、３個以上の前記吸振
装置をそれぞれが異る向きに傾くようにそれぞれの一端
を自在継手を介して固定床に接続し、他端を自在継手を
介して構造物に継続したことを特徴とする。In the vibration absorbing structure of the present invention, one end of each of the three or more vibration absorbing devices is connected to a fixed floor via a universal joint so that each of them is inclined in different directions, and the other end is connected to the universal joint. Characterized by the continuation of the structure.
【００１２】[0012]
【発明の実施の形態】次に本発明について図面を参照し
て説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.
【００１３】図１は本発明の一実施例の吸振装置の断面
図である。図１において、吸振装置２３は、電気粘性流
体５８が満され密閉されたシリンダ内をばね２７により
前端へ向かう力を受けるピストン５４が摺動するダンパ
２６からなり、ダンパ２６の前端から突出するピストン
ロッド５５は自在継手５６を介して構造物９に接続さ
れ、ダンパ２６の後端は自在継手５７を介して固定床５
に接続されている。FIG. 1 is a sectional view of a vibration absorbing device according to an embodiment of the present invention. In FIG. 1, the vibration absorbing device 23 is composed of a damper 26 in which a piston 54 that receives a force toward the front end by a spring 27 slides in a cylinder that is filled with an electrorheological fluid 58 and that projects from the front end of the damper 26. The rod 55 is connected to the structure 9 via the universal joint 56, and the rear end of the damper 26 is connected to the fixed floor 5 via the universal joint 57.
It is connected to the.
【００１４】さらに本発明の他の実施例の吸振構造は、
図２に示すが如く固定床５と構造物９との間に自在継手
５６，５７を介して吸振装置２３を互いの向きが異るよ
うに傾けて４個（少くとも３個）実装することにより、
構造物９に対して三次元の振動が加わっても、あるいは
構造物９自身が振動を発生しても、吸振装置２３は容易
構造物９の振動を吸収できる。Further, the vibration absorbing structure of another embodiment of the present invention is
As shown in FIG. 2, four (at least three) vibration absorbers 23 are mounted between the fixed floor 5 and the structure 9 through universal joints 56 and 57 while tilting so that their directions are different from each other. Due to
Even if three-dimensional vibration is applied to the structure 9 or the structure 9 itself generates vibration, the vibration absorbing device 23 can easily absorb the vibration of the structure 9.
【００１５】ダンパ２６の内面およびピストン５４の側
面の間に電気粘性流体５８が絞られて流通する絞り路２
５が形成される。ダンパ６において、絞り路１６を挟む
ようにピストン５４の側面に設けられた電極２８及びダ
ンパ２６の内面に設けられた電極２９の間に電圧を印可
すれば絞り路２５内を通過する電気粘性流体５８の流れ
に直交する電界を形成することとなり、両電極２８，２
９に挟まれる電気粘性流体５８の粘度を増加させること
となる。従って、絞り路２５を通過する電気粘性流体５
８の粘度が制御され、結果としてダンパ２６の減衰係数
ｃが調整可能となる。The throttle passage 2 in which the electrorheological fluid 58 is squeezed and flows between the inner surface of the damper 26 and the side surface of the piston 54.
5 are formed. In the damper 6, if a voltage is applied between the electrode 28 provided on the side surface of the piston 54 and the electrode 29 provided on the inner surface of the damper 26 so as to sandwich the throttle passage 16, an electrorheological fluid passing through the throttle passage 25. An electric field that is orthogonal to the flow of 58 is formed, and both electrodes 28, 2
Therefore, the viscosity of the electrorheological fluid 58 sandwiched between 9 is increased. Therefore, the electrorheological fluid 5 passing through the throttle passage 25
The viscosity of No. 8 is controlled, and as a result, the damping coefficient c of the damper 26 can be adjusted.
【００１６】図３は、図２に示す実施例にさらに加速度
センサを加えた実施例を示す模式図である。図１におい
て、５１は構造物９の防振床４の振動の加速度を検出す
る三次元加速度センサ、５２は三次元加速度センサ５１
の検出値を基にダンパ２６の電極２８，２９間に印加す
る電圧を制御する制御部５２である。この吸振装置は、
以下のように作動する。FIG. 3 is a schematic view showing an embodiment in which an acceleration sensor is further added to the embodiment shown in FIG. In FIG. 1, 51 is a three-dimensional acceleration sensor that detects the acceleration of vibration of the vibration-isolated floor 4 of the structure 9, and 52 is a three-dimensional acceleration sensor 51.
The control unit 52 controls the voltage applied between the electrodes 28 and 29 of the damper 26 on the basis of the detected value. This vibration absorber is
It works as follows.
【００１７】１．通常は、構造物９が動かないよう電気
粘性流体５８には、一定の電圧が印加されている。1. Normally, a constant voltage is applied to the electrorheological fluid 58 so that the structure 9 does not move.
【００１８】２．構造物９に振動が加わった場合または
振動が発生した場合、三次元加速度センサ５１は構造物
９の三次元の加速度を検出し、この検出値を制御部５２
に転送する。2. When vibration is applied to the structure 9 or vibration is generated, the three-dimensional acceleration sensor 51 detects the three-dimensional acceleration of the structure 9 and the detected value is detected by the controller 52.
Transfer to
【００１９】３．制御部５２は三次元加速度センサ５１
の検出値を基に三次元加速度センサ５１の検出値の絶対
値を零に収束させるよう制御すべき減衰比ζを決定し、
さらに、この減衰比ζを実現するためダンパ２６の減衰
係数ｃを得るために必要な電圧をダンパ２６の電極２
８，２９に与える制御（例えばフィードバック制御）を
行い振動の吸収を行い、振動を収束させる。3. The control unit 52 uses the three-dimensional acceleration sensor 51.
The damping ratio ζ to be controlled so that the absolute value of the detection value of the three-dimensional acceleration sensor 51 converges to zero is determined based on the detection value of
Further, the voltage required to obtain the damping coefficient c of the damper 26 to realize this damping ratio ζ is set to the electrode 2 of the damper 26.
The control (e.g., feedback control) given to 8 and 29 is performed to absorb the vibration and converge the vibration.
【００２０】図４は図３の実施例にさらにもう１つの加
速度センサを加えた実施例を示す模式図である。図４に
おいて、図３に示す実施例の構造物９を設置した固定床
５にも三次元加速度センサ５３を取り付け、さらに制御
部５２の代わりに制御部６４を三次元加速度センサ５
１，５３及びダンパ２６の電極２８，２９に接続する。
この吸振装置は、以下のように作動する。FIG. 4 is a schematic view showing an embodiment in which another acceleration sensor is added to the embodiment of FIG. 4, the three-dimensional acceleration sensor 53 is also attached to the fixed floor 5 on which the structure 9 of the embodiment shown in FIG. 3 is installed, and the control unit 64 is provided in place of the control unit 52.
1, 53 and electrodes 28, 29 of the damper 26.
This vibration absorbing device operates as follows.
【００２１】１．通常は、構造物９が動かないようダン
パ２６の電極２８，２９には、一定の電圧が印可されて
いる。1. Usually, a constant voltage is applied to the electrodes 28 and 29 of the damper 26 so that the structure 9 does not move.
【００２２】２．構造物９に振動が加わった場合、まず
固定床５に設置された三次元加速度センサ５３は固定床
５の三次元の加速度を検出し、この検出値を制御部６４
に転送する。2. When vibration is applied to the structure 9, first, the three-dimensional acceleration sensor 53 installed on the fixed floor 5 detects the three-dimensional acceleration of the fixed floor 5, and the detected value is controlled by the control unit 64.
Transfer to
【００２３】３．制御部６４は、固定床５の三次元加速
度センサ５３の検出値を基に構造物９に設置された三次
元加速度センサ５１の検出値の絶対置が零になるよう制
御すべき減衰比ζを決定し、さらに、この減衰比ζを実
現するためダンパ２６の減衰係数ｃを得るために必要な
電圧をダンパ２６の電極２８，２９にあらかじめ与える
制御（例えばフィードフォワード制御）を行い振動の吸
収を行う。3. The control unit 64 sets the damping ratio ζ to be controlled so that the absolute position of the detection value of the three-dimensional acceleration sensor 51 installed in the structure 9 becomes zero based on the detection value of the three-dimensional acceleration sensor 53 of the fixed floor 5. The vibration absorption is performed by determining and determining the voltage required to obtain the damping coefficient c of the damper 26 in order to realize this damping ratio ζ by giving the electrodes 28 and 29 of the damper 26 in advance (for example, feedforward control). To do.
【００２４】４．その後、構造物に加わる振動が続く場
合は、三次元加速度センサ５１，５３で検出された加速
度の大きさ、方向、位相等のデータを基にして三次元加
速度センサ５１の絶対値を零に収束させるよう電極２
８，２９に与える電圧を制御し振動の吸収を行い、振動
を収束させる。4. After that, when the vibration applied to the structure continues, the absolute value of the three-dimensional acceleration sensor 51 converges to zero based on the data of the magnitude, direction, phase, etc. of the acceleration detected by the three-dimensional acceleration sensors 51 and 53. Electrode 2
The voltage applied to 8 and 29 is controlled to absorb the vibration and converge the vibration.
【００２５】[0025]
【発明の効果】本発明の吸振装置は構造物の振動を受け
てダンパ本体とピストンとが相対的に動く方向に平行に
絞り路及び絞り路内に電界を与えるための電極が設けら
れ、過度の外力を受けても電極どうしが接触して破損す
るようなことがないという効果がある。また本発明の吸
振構造は、構造物に対して最適な振動減衰効果を付与す
ることが出来る。The vibration absorbing device of the present invention is provided with a throttle passage and an electrode for applying an electric field in the throttle passage in parallel with the direction in which the damper body and the piston relatively move in response to the vibration of the structure, The effect is that the electrodes do not come into contact with each other and are damaged even if they are subjected to an external force. Further, the vibration absorbing structure of the present invention can impart an optimum vibration damping effect to the structure.
【図１】本発明の一実施例の吸振装置の断面図である。FIG. 1 is a cross-sectional view of a vibration absorbing device according to an embodiment of the present invention.
【図２】（Ａ）及び（Ｂ）はそれぞれ本発明の他の実施
例の吸振構造の平面図及び側面図である。2A and 2B are respectively a plan view and a side view of a vibration absorbing structure according to another embodiment of the present invention.
【図３】図２に示す実施例の防震床の振動を検出する三
次元加速度センサを設けた吸振構造を示す模式図であ
る。FIG. 3 is a schematic diagram showing a vibration absorbing structure provided with a three-dimensional acceleration sensor for detecting vibration of the earthquake-proof floor of the embodiment shown in FIG.
【図４】図３に示す吸振構造に固定床の振動を検出する
三次元加速度センサを設けた吸振構造の模式図である。FIG. 4 is a schematic diagram of a vibration absorbing structure in which a three-dimensional acceleration sensor for detecting vibration of a fixed floor is provided in the vibration absorbing structure shown in FIG.
【図５】従来の吸振装置の断面図である。FIG. 5 is a cross-sectional view of a conventional vibration absorbing device.
【図６】従来の他の吸振装置を示す模式図である。FIG. 6 is a schematic view showing another conventional vibration absorbing device.
【符号の説明】 １，１０，２３ 吸振装置 ２ 主質量 ３ ばね ４ 防震床 ５ 固定床 ６ ダンパ ７ ばね ８ 補助質量 ９ 構造物 １１ 下板 １２ 中板 １３ 上板 １４ ダンパ室 １５ 連通路 １６，２５ 絞り路 １７ 絶縁体 １８，１９，２８，２９ 電極 ２０ 排液路 ２１ 循環路 ２２ 循環ポンプ ２６ ダンパ ２７ ばね ５１，５３ 三次元加速度センサ ５２，６４ 制御部 ５４ ピストン ５５ ピストンロッド ５６，５７ 自在継手 ５８ 電気粘性流体[Explanation of symbols] 1,10,23 Vibration absorber 2 Main mass 3 Spring 4 Seismic floor 5 Fixed floor 6 Damper 7 Spring 8 Auxiliary mass 9 Structure 11 Lower plate 12 Middle plate 13 Upper plate 14 Damper chamber 15 Communication passage 16, 25 throttle passage 17 insulator 18, 19, 28, 29 electrode 20 drainage passage 21 circulation passage 22 circulation pump 26 damper 27 spring 51, 53 three-dimensional acceleration sensor 52, 64 control portion 54 piston 55 piston rod 56, 57 universal joint 58 Electrorheological fluid
Claims (4)
ンダー状のダンパ本体と、このダンパ本体内を摺動する
ピストンと、このピストンに接続され先端が前記ダンパ
本体の前端から突出するピストンロッドと、前記ピスト
ンに一定方向の力を与えるばねと、前記ダンパ本体の内
面に設けられた第１の電極と、前記ピストンの側面に設
けられ前記第１の電極と協働して前記ダンパ本体の内面
と前記ピストンの側面の間の絞り路を通る前記電気粘性
流体に電界を印加する第２の電極とを含むことを特徴と
する吸振装置。1. A cylindrical damper body filled with an electrorheological fluid and sealed, a piston sliding in the damper body, and a piston rod connected to the piston and having a tip protruding from a front end of the damper body. A spring for applying a force in a fixed direction to the piston, a first electrode provided on an inner surface of the damper body, and an inner surface of the damper body provided on a side surface of the piston in cooperation with the first electrode And a second electrode for applying an electric field to the electrorheological fluid that passes through a narrowed path between the side surfaces of the piston.
れぞれが互いに異る向きに傾くようにそれぞれの一端を
自在継手を介して固定床に接続し他端を構造物に自在継
手を介して接続したことを特徴とする吸振構造。2. Three or more vibration absorbers according to claim 1, one end of each of which is connected to a fixed floor via a universal joint so that the vibration absorbers incline in mutually different directions, and the other end is connected to a structure by a universal joint. A vibration absorbing structure characterized by being connected through.
速度センサと、この第１の三次元加速度センサの検出値
に応じて第１及び第２の電極間に与える電圧を制御する
第１の制御部を備えた請求項２記載の吸振構造。3. A first three-dimensional acceleration sensor for detecting vibration of a structure, and a first three-dimensional acceleration sensor for controlling a voltage applied between the first and second electrodes according to a detection value of the first three-dimensional acceleration sensor. The vibration absorbing structure according to claim 2, further comprising:
速度センサと、この第２の三次元加速度センサの検出値
及び第１の三次元加速度センサの検出値に応じて第１及
び第２の電極間に与える電圧を制御する第２の制御部を
備えた請求項３記載の吸振構造。4. A second three-dimensional acceleration sensor for detecting vibrations of a fixed floor, and first and second three-dimensional acceleration sensors according to a detected value of the second three-dimensional acceleration sensor and a detected value of the first three-dimensional acceleration sensor. The vibration absorbing structure according to claim 3, further comprising a second control unit that controls a voltage applied between the two electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17724395A JPH0925989A (en) | 1995-07-13 | 1995-07-13 | Vibration absorbing device and vibration absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17724395A JPH0925989A (en) | 1995-07-13 | 1995-07-13 | Vibration absorbing device and vibration absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0925989A true JPH0925989A (en) | 1997-01-28 |
Family
ID=16027661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17724395A Pending JPH0925989A (en) | 1995-07-13 | 1995-07-13 | Vibration absorbing device and vibration absorbing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0925989A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006019126A1 (en) * | 2004-08-19 | 2006-02-23 | Komatsu Ltd. | Liquid-sealed mount, cab supporting device, and seat supporting device |
| JP2016036445A (en) * | 2014-08-06 | 2016-03-22 | Ｋｙｂ株式会社 | Overturning prevention device and article equipped with the same |
| CN109147231A (en) * | 2018-08-29 | 2019-01-04 | 合肥浮点信息科技有限公司 | A kind of combustion gas self-help charger being readily transported |
| CN110529551A (en) * | 2019-09-10 | 2019-12-03 | 苏州莱锦机电自动化有限公司 | A kind of electromechanical equipment damping device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57208333A (en) * | 1981-06-15 | 1982-12-21 | Secoh Giken Inc | Delay device utilizing liquid sealed by magnetic fluid |
| JPH0454345A (en) * | 1990-06-25 | 1992-02-21 | Kayaba Ind Co Ltd | Vibration-proof device for marine engine |
| JPH0658003A (en) * | 1992-08-03 | 1994-03-01 | Shimizu Corp | Vibration isolating chord and beam using the same |
| JPH06288071A (en) * | 1992-08-26 | 1994-10-11 | Kajima Corp | Electromagnetic type floating floor structure |
-
1995
- 1995-07-13 JP JP17724395A patent/JPH0925989A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57208333A (en) * | 1981-06-15 | 1982-12-21 | Secoh Giken Inc | Delay device utilizing liquid sealed by magnetic fluid |
| JPH0454345A (en) * | 1990-06-25 | 1992-02-21 | Kayaba Ind Co Ltd | Vibration-proof device for marine engine |
| JPH0658003A (en) * | 1992-08-03 | 1994-03-01 | Shimizu Corp | Vibration isolating chord and beam using the same |
| JPH06288071A (en) * | 1992-08-26 | 1994-10-11 | Kajima Corp | Electromagnetic type floating floor structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006019126A1 (en) * | 2004-08-19 | 2006-02-23 | Komatsu Ltd. | Liquid-sealed mount, cab supporting device, and seat supporting device |
| JP2016036445A (en) * | 2014-08-06 | 2016-03-22 | Ｋｙｂ株式会社 | Overturning prevention device and article equipped with the same |
| CN109147231A (en) * | 2018-08-29 | 2019-01-04 | 合肥浮点信息科技有限公司 | A kind of combustion gas self-help charger being readily transported |
| CN110529551A (en) * | 2019-09-10 | 2019-12-03 | 苏州莱锦机电自动化有限公司 | A kind of electromechanical equipment damping device |
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