JPH08312716A - Dynamic vibration absorber provided with adjusting mechanism - Google Patents
Dynamic vibration absorber provided with adjusting mechanismInfo
- Publication number
- JPH08312716A JPH08312716A JP14117295A JP14117295A JPH08312716A JP H08312716 A JPH08312716 A JP H08312716A JP 14117295 A JP14117295 A JP 14117295A JP 14117295 A JP14117295 A JP 14117295A JP H08312716 A JPH08312716 A JP H08312716A
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- casing
- leaf spring
- ring
- weight portion
- 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.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
- Floor Finish (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】Ａ．発明の目的 (1) 産業上の利用分野 この発明は、橋梁あるいは建物の床もしくは梁、その他
の外的強制力を受けて振動する構造物における振動の減
衰を増加させる制振装置、いわゆる動吸振装置（動吸振
器あるいはダイナミック・マス・ダンパともいう）に関
する。A. OBJECT OF THE INVENTION (1) Industrial field of application The present invention relates to a vibration damping device for increasing the damping of vibration in a bridge, a floor or a beam of a building, or other structures vibrated by an external force, a so-called dynamic vibration absorbing device. This relates to a device (also called a dynamic vibration absorber or a dynamic mass damper).
【０００２】(2) 従来の技術 一般に、動吸振装置は、制振しようとする構造物（被制
振構造物）の振動数とほぼ同じ固有振動数をもつか、あ
るいはそれよりもやや小さな固有振動数を持った振動系
であり、これを該被制振構造物すなわち主振動系に付加
して、主振動系の振動を低減するものであり、その理論
は既に公知である。すなわち、図１４に示すように、該
装置（２）は基本的にはばね体と質量体（重錘）とダン
パ（減衰器）とから構成され、これを振動系モデルとし
て表示すると図１５のようになり、２自由度系の振動モ
デルとして解析されるものである。ここに、Ｍ１，Ｋ
１，Ｃ１はそれぞれ主振動系（１）の等価質量、等価ば
ね定数、減衰係数である。(2) Conventional Technology Generally, a dynamic vibration absorber has a natural frequency that is almost the same as the frequency of a structure to be damped (a structure to be damped), or has a slightly smaller natural frequency. It is a vibration system having a frequency and is added to the structure to be controlled, that is, the main vibration system to reduce the vibration of the main vibration system, and its theory is already known. That is, as shown in FIG. 14, the device (2) is basically composed of a spring body, a mass body (weight) and a damper (attenuator), and when this is displayed as a vibration system model, FIG. Thus, the vibration model of the two-degree-of-freedom system is analyzed. Where M1, K
1 and C1 are the equivalent mass, equivalent spring constant, and damping coefficient of the main vibration system (1), respectively.
【０００３】そこで、本出願人は先に、実願平２−１０
８３９３号（以下「先行技術」という）において、板ば
ね特性を利用した動吸振装置を提案した。すなわち、該
先行技術の動吸振装置によれば、底板上に設置された固
定支持体と；該固定支持体に支持部材を介して支持さ
れ、一軸方向に移動の許容される重錘部と；前記固定支
持体と前記重錘部の移動方向の対向端部との間に配され
る横置き板ばね部材と；前記固定支持体と前記重錘部と
に介装される減衰部と；からなる構成を採るものであっ
て、その作用として、外力により主振動系に振動が生起
すると、本装置における固定系たる底板及び固定支持体
と可動系たる重錘部とに相対的変位が生じるが、横置き
板ばね部材はこの動きをその横剛性により一方向移動に
のみ規制し、重錘部を一軸方向にのみ案内するので、別
途に案内部材を必要とせず、その移動に対して不必要な
摩擦抵抗を生じない。このため、重錘部は外力の振動に
良好に追従し、かつ、減衰部によりその変位と反対方向
への減衰力を受けて主振動系の振動を速やかに減衰させ
る。Therefore, the present applicant has previously filed Japanese Utility Model Application No. 2-10.
No. 8393 (hereinafter referred to as "prior art") has proposed a dynamic vibration absorbing device utilizing the leaf spring characteristics. That is, according to the dynamic vibration absorbing device of the prior art, a fixed support body installed on the bottom plate; a weight portion supported by the fixed support body via a support member and allowed to move in one axial direction; From a horizontal leaf spring member arranged between the fixed support and the opposite end of the weight in the moving direction; and a damping portion interposed between the fixed support and the weight. When the main vibration system vibrates due to an external force, a relative displacement occurs between the bottom plate and the fixed support, which are the fixed system, and the weight part, which is the movable system, in this device. Since the horizontal leaf spring member restricts this movement to only one direction movement by its lateral rigidity and guides the weight part only in one axis direction, it does not require a separate guide member and is unnecessary for its movement. It does not cause friction resistance. For this reason, the weight portion satisfactorily follows the vibration of the external force, and receives the damping force in the direction opposite to the displacement by the damping portion, thereby rapidly damping the vibration of the main vibration system.
【０００４】しかして、本動吸振装置の固有振動数は、
重錘の質量、横置き板ばね部材のばね定数によって決ま
るものであり、設計当初においては、これらの決定変量
をこの動吸振装置の設置される構造物すなわち主振動系
の固有振動周期に対応させた理論計算値（設計値）が使
用される。しかるに、主振動系たる構造物の固有振動周
期は、設計時の値と構築後の実際値との差、また、構築
後においても種々の要因により一義的に定まらず、主振
動系の固有振動周期に対応して設定される動吸振装置の
固有振動数の変更が余儀なくされる事態に立ち至ること
がしばしばある。このような場合、先行技術において
は、動吸振装置の固有振動数の変更のため重錘あるいは
板ばねの取り替え作業を要し、正確さを期しがたいうえ
に、作業手間もかかる問題がある。[0004] The natural frequency of the dynamic vibration absorber is
It is determined by the mass of the weight and the spring constant of the horizontal leaf spring member.At the beginning of design, these determined variables were made to correspond to the natural vibration period of the structure in which this dynamic vibration absorber was installed, that is, the main vibration system. The theoretical calculated value (design value) is used. However, the natural vibration period of the structure that is the main vibration system is not uniquely determined by the difference between the value at the time of design and the actual value after construction, and also after construction. It often happens that the natural frequency of the dynamic vibration absorber set according to the cycle must be changed. In such a case, in the prior art, it is necessary to replace the weight or the leaf spring in order to change the natural frequency of the dynamic vibration absorbing device, which makes it difficult to ensure accuracy and requires a lot of labor.
【０００５】(3) 発明が解決しようとする課題 本発明は上記実情に鑑みなされたものであって、強制振
動力を受けて振動する構造物に付置される動吸振装置で
あって、当該構造物の固有振動周期の変化に対応して固
有振動数の変更を簡単な操作で、かつ正確に調整できる
調整機構付き動吸振装置を得ることを第１の目的とす
る。本発明は更に、吸振特性の優れた動吸振装置を得る
ことを第２の目的とする。(3) Problem to be Solved by the Invention The present invention has been made in view of the above circumstances, and is a dynamic vibration absorbing device attached to a structure that vibrates by receiving a forced vibration force. A first object of the present invention is to obtain a dynamic vibration absorbing device with an adjusting mechanism that can accurately change the natural frequency in response to a change in the natural vibration period of an object with a simple operation. A second object of the present invention is to obtain a dynamic vibration absorbing device having excellent vibration absorbing characteristics.
【０００６】Ｂ．発明の構成 (1) 問題点を解決するための手段 本発明の動吸振装置は上記第１の目的を達成するため、
次の技術的手段を採る。すなわち、請求項１に記載のと
おり、平坦状に置かれる底板と該底板上に立設される外
枠体と該外枠体の開口を閉塞する上蓋とからなり、固定
系を形成するケーシングと；前記ケーシング内におい
て、底板上に設置されたコイルばね上に載置され、上下
動自在の可動系を形成する重錘部と；前記ケーシング内
において上蓋と重錘部との間に介装されるリング状の板
ばねと；からなり、前記リング状の板ばねの下部は、そ
の中央で前記重錘部と固定され、該リング状の板ばねの
上部は、その中央より両端部方向に向けて移動可能な固
定部材をもって固定されてなる、ことを特徴とする。本
構成は縦振動に対応する。また、請求項２に記載のとお
り、平坦状に置かれる底板と該底板上に立設される外枠
体とからなり、固定系を形成するケーシングと；前記ケ
ーシング内において、底板上に設置された転動子上に載
置され、水平動自在の可動系を形成する重錘部と；前記
ケーシング内において外枠体と重錘部との間に介装され
るリング状の板ばねと；からなり、前記リング状の板ば
ねと重錘部との固定位置は一定位置で固定され、該リン
グ状の板ばねと外枠体との固定位置は、その中央より両
端部方向に向けて移動可能な固定部材をもって固定され
てなることを特徴とする。本構成は横振動に対応する。
本発明の動吸振装置は更に第２の目的を達成するため、
次の技術的手段を採る。すなわち、請求項４に記載のと
おり、平坦状に置かれる底板と該底板上に立設される外
枠体と該外枠体の開口を閉塞する上蓋とからなり、固定
系を形成するケーシングと；前記ケーシング内におい
て、底板上に設置されたコイルばね上に載置され、上下
動自在の可動系を形成する重錘部と；前記ケーシング内
において上蓋と重錘部との間に介装されるリング状の板
ばねと；前記重錘部とケーシングとの間に介装設置され
る減衰部と；からなり、前記リング状の板ばねの下部
は、その中央で前記重錘部と固定され、該リング状の板
ばねの上部は、その中央より両端部方向に向けて等位置
で上蓋に固定されてなる、ことを特徴とする動吸振装
置。上記構成において、リング状の板ばねの上部の固定
は１点も含む。B. Configuration of the Invention (1) Means for Solving the Problems In order to achieve the first object, the dynamic vibration damping device of the present invention,
Take the following technical measures. That is, as described in claim 1, a casing which comprises a bottom plate placed flat, an outer frame body standing on the bottom plate, and an upper lid closing an opening of the outer frame body, and forming a fixed system, A weight unit that is placed on a coil spring installed on a bottom plate in the casing and forms a vertically movable movable system; and is interposed between the upper lid and the weight unit in the casing. A lower part of the ring-shaped plate spring is fixed to the weight portion at the center thereof, and an upper part of the ring-shaped plate spring is directed toward both end portions from the center thereof. It is fixed by a movable fixing member. This configuration supports longitudinal vibration. Further, as described in claim 2, a casing which comprises a bottom plate placed flat and an outer frame body standing on the bottom plate to form a fixed system; and a casing installed on the bottom plate in the casing. A weight portion that is placed on the rolling element and forms a horizontally movable movable system; a ring-shaped leaf spring that is interposed between the outer frame body and the weight portion in the casing; The fixed position of the ring-shaped leaf spring and the weight portion is fixed at a fixed position, and the fixed position of the ring-shaped leaf spring and the outer frame moves from the center toward both ends. It is characterized in that it is fixed with a possible fixing member. This configuration supports lateral vibration.
In order to achieve the second object, the dynamic vibration absorbing device of the present invention further comprises:
Take the following technical measures. That is, as described in claim 4, a casing comprising a bottom plate placed flat, an outer frame body standing on the bottom plate, and an upper lid closing an opening of the outer frame body, and forming a fixed system, A weight unit that is placed on a coil spring installed on a bottom plate in the casing and forms a vertically movable movable system; and is interposed between the upper lid and the weight unit in the casing. A ring-shaped leaf spring; and a damping portion interposed between the weight portion and the casing; and the lower portion of the ring-shaped leaf spring is fixed to the weight portion at the center thereof. A dynamic vibration absorbing device, characterized in that the upper portion of the ring-shaped leaf spring is fixed to the upper lid at equal positions from the center thereof toward both ends. In the above configuration, the fixing of the upper portion of the ring-shaped leaf spring includes one point.
【０００７】(2) 作用 外力により主振動系に振動が生起すると、請求項１及び
請求項４の装置において、コイルばね及びリング状の板
ばね（板ばねリング）に支持された重錘部は自由振動を
なし、かつ、板ばねリングはこの動きをその横剛性によ
り上下の一方向移動にのみ規制する。重錘部の振動は構
造物の振動と合致するように調整されたものとなってお
り、これにより、本動吸振装置が共振状態となり、主振
動系の振動を吸収する。更に、減衰部を有する構成にお
いては、その変位と反対方向への減衰力を生じさせ、主
振動系の振動を速やかに減衰させる。また、請求項２の
装置において、転動子上に支持された重錘部は自由振動
をなし、かつ、板ばねリングはこの動きをその横剛性に
より水平の一方向移動にのみ規制する。重錘部の振動は
構造物の振動と合致するように調整されたものとなって
おり、これにより、本動吸振装置が共振状態となり、主
振動系の振動を吸収する。更に、減衰部を有する構成に
おいては、その変位と反対方向への減衰力を生じさせ、
主振動系の振動を速やかに減衰させる。更に、請求項１
及び請求項２の装置において、主振動系の振動周期の変
化に対し、板ばねリングの一方に配した固定部材の移動
をもって、該板ばねリングの支持間隔を変え、本動吸振
装置の固有振動数の調整をなす。(2) When vibration is generated in the main vibration system by an external force, the weight portion supported by the coil spring and the ring-shaped leaf spring (leaf spring ring) It is free to vibrate, and the leaf spring ring restricts this movement to one-way movement up and down due to its lateral rigidity. The vibration of the deadweight portion is adjusted so as to match the vibration of the structure. As a result, the dynamic vibration absorbing device enters a resonance state and absorbs the vibration of the main vibration system. Further, in the configuration having the damping portion, a damping force in the direction opposite to the displacement is generated, and the vibration of the main vibration system is quickly damped. Further, in the apparatus according to the second aspect, the weight portion supported on the rolling element makes free vibration, and the leaf spring ring restricts this movement to horizontal one-way movement only by its lateral rigidity. The vibration of the deadweight portion is adjusted so as to match the vibration of the structure. As a result, the dynamic vibration absorbing device enters a resonance state and absorbs the vibration of the main vibration system. Further, in the configuration having the damping portion, a damping force is generated in the direction opposite to the displacement,
Promptly damp the vibration of the main vibration system. Further, claim 1
3. The apparatus according to claim 2, wherein, with respect to the change of the vibration period of the main vibration system, the fixed member arranged on one side of the leaf spring ring changes the support interval of the leaf spring ring to change the natural vibration of the main vibration absorber. Make a number adjustment.
【０００８】(3) 実施例 本発明の調整機構付き動吸振装置の実施例を図面に基づ
いて説明する。 （第１実施例）図１〜図８はその一実施例の縦振動に対
応する動吸振装置Ｄを示す。すなわち、図１〜図３はそ
の全体の構成を示し、図４〜図８はその部分構成を示
す。なお、図において、Ｚはこの動吸振装置Ｄが対応す
る主たる振動系の振動方向、換言すれば重錘部の移動方
向を示し、Ｘ，ＹはＺ方向に直交する平面座標方向を示
す。(3) Embodiment An embodiment of the dynamic vibration absorbing device with an adjusting mechanism of the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 8 show a dynamic vibration absorbing device D corresponding to the longitudinal vibration of one embodiment. That is, FIGS. 1 to 3 show the entire structure, and FIGS. 4 to 8 show the partial structure. In the figure, Z indicates the vibration direction of the main vibration system to which the dynamic vibration absorbing device D corresponds, in other words, the moving direction of the weight portion, and X and Y indicate plane coordinate directions orthogonal to the Z direction.
【０００９】図１〜図３を参照して、この動吸振装置Ｄ
は、底板１と該底板１上に立設される外枠体２と上蓋３
とからなり、固定系を形成するケーシング４と；該ケー
シング４内において、底板１上に設置されたコイルばね
５上に載置され、上下動自在の可動系を形成する重錘部
６と；同じくケーシング４内において、上蓋３と重錘部
６との間に介装され、重錘部６に連動するリング状に形
成された板ばね（以下「板ばねリング」と称する）７
と；該板ばねリング７に連動し、上蓋３上に配される振
動数の調整機構部８と；重錘部６の下面に設置される減
衰部９と；からなる。Referring to FIGS. 1 to 3, this dynamic vibration absorbing device D
Is a bottom plate 1, an outer frame body 2 standing on the bottom plate 1, and an upper lid 3.
And a casing 4 that forms a fixed system; and a weight portion 6 that is mounted on a coil spring 5 installed on the bottom plate 1 in the casing 4 and that forms a vertically movable movable system. Similarly, in the casing 4, a leaf spring (hereinafter referred to as a “leaf spring ring”) which is interposed between the upper lid 3 and the weight portion 6 and is formed in a ring shape interlocking with the weight portion 7 is provided.
And; a frequency adjusting mechanism portion 8 arranged on the upper lid 3 in cooperation with the leaf spring ring 7; and a damping portion 9 installed on the lower surface of the weight portion 6.
【００１０】以下、各部の細部構造を説明する。ケーシング４ ケーシング４の底板１は長方形状の平板体よりなり、水
平を保持して設置される。該底板１上に四角枠体状の外
枠体２が固定状に設置される。２Ｘは外枠体２のＸ方向
に沿う壁体を示し、２ＹはＸ方向に直交する壁体、換言
すればＹ方向に沿う壁体を示す。外枠体２の上部開口部
に上面板２ａが固定設置される。該上面板２ａの中央に
は長手方向（Ｘ方向）に案内溝１１が開設される。該上
面板２ａに上蓋３が閉塞状に設置される。上蓋３には中
央に細長状の溝（中央溝）１２及び該中央溝１２の両側
に相並んで溝（側溝）１３が開設される。該上蓋３は取
付けボルト・ナット１４をもって外枠体２より取外し自
在となっている。しかして、ケーシング４は所定の剛性
を保つとともに、その内部に重錘部６及び板ばねリング
７の運動を許容する収容空間１５を形成する。The detailed structure of each part will be described below. Casing 4 The bottom plate 1 of the casing 4 is a rectangular flat plate, and is installed horizontally. An outer frame body 2 having a rectangular frame shape is fixedly installed on the bottom plate 1. 2X indicates a wall body of the outer frame body 2 along the X direction, and 2Y indicates a wall body orthogonal to the X direction, in other words, a wall body along the Y direction. The upper plate 2a is fixedly installed in the upper opening of the outer frame 2. A guide groove 11 is provided in the center of the upper plate 2a in the longitudinal direction (X direction). The upper lid 3 is installed in a closed shape on the upper plate 2a. An elongated groove (central groove) 12 is formed in the center of the upper lid 3, and grooves (side grooves) 13 are formed side by side on both sides of the central groove 12. The upper lid 3 is detachable from the outer frame body 2 with mounting bolts and nuts 14. Thus, the casing 4 maintains a predetermined rigidity and forms an accommodation space 15 therein which allows the weight 6 and the leaf spring ring 7 to move.
【００１１】重錘部６ 重錘部６は、ケーシング４の底板１上に相並べて設置さ
れた２つのコイルばね５上に載置される。重錘部６の底
面にコイルばね５を受け入れる凹部１７が凹設される。
重錘部６は直方体をなし、所定の重量を有する。 Weight portion 6 The weight portion 6 is placed on two coil springs 5 arranged side by side on the bottom plate 1 of the casing 4. A recess 17 for receiving the coil spring 5 is provided on the bottom surface of the weight portion 6.
The weight 6 has a rectangular parallelepiped shape and has a predetermined weight.
【００１２】板ばねリング７ 板ばねリング７は、平板状にして長尺の帯状の板ばね材
をリング状に折り曲げて形成される。両端部を互いに突
き合わせ、固定部材１８をもって把持するとともに、重
鐘部６の上面上に固定される。該板ばねリング７はその
特徴上、横剛性が大きく、Ｙ方向への変位は拘束され、
上下方向（Ｚ方向）の変位は自在である。 Leaf Spring Ring 7 The leaf spring ring 7 is formed by bending a long strip-shaped leaf spring material into a flat plate shape into a ring shape. Both ends are abutted against each other, held by the fixing member 18, and fixed on the upper surface of the bell 6. Due to its characteristic, the leaf spring ring 7 has a large lateral rigidity, and its displacement in the Y direction is restricted.
The displacement in the vertical direction (Z direction) is free.
【００１３】調整機構部８ 調整機構部８は、板ばねリング７に連動し、該板ばねリ
ング７の支持間隔を可変とし、該板ばねリング７のばね
定数を可変とする機能を有し、上蓋３上に配されてな
る。もっと詳しくは、該調整機構部８は、上蓋３上の両
端に立設されるねじ棒用の保持体２０と、該両保持体２
０にわたって回転自在に保持されるねじ棒２１と、板ば
ねリング７の上部を把持し、該ねじ棒２１に連動して互
いに逆方向に移動する２つの移動固定子２２と、からな
る。 Adjusting Mechanism 8 The adjusting mechanism 8 has a function of interlocking with the leaf spring ring 7 to make the support interval of the leaf spring ring 7 variable and to make the spring constant of the leaf spring ring 7 variable. It is arranged on the upper lid 3. More specifically, the adjusting mechanism portion 8 includes a holding body 20 for screw rods provided upright at both ends on the upper lid 3, and the both holding bodies 2.
It consists of a screw rod 21 that is rotatably held over 0, and two moving stators 22 that grip the upper part of the leaf spring ring 7 and move in opposite directions in conjunction with the screw rod 21.
【００１４】図４〜図７は該調整機構部８の細部構造を
示す。 （保持体２０）保持体２０は、上蓋３の中央溝１２に直
交し、かつ、該中央溝１２の両延長上に立設され、ねじ
棒用の保持孔２４を有する。保持孔２４の中心は中央溝
１２の中心線と投影面で同軸上にある。 （ねじ棒２１）ねじ棒２１は、両端部を除いて互いに逆
方向のねじ２１ａ，２１ｂが刻設され、両端部２１ｃは
ジャーナル部をなし、保持体２０の保持孔２４に軸受２
５を介して回転自在に支持される。そして、ねじ棒２１
の一方の端部２１ｄは回転駆動部（図示せず）を受け入
れる係合部とされる。回転駆動部は手動操作においては
回転ハンドルが使用され、機械操作においては減速機付
き電動モーターが使用されるが、これらに限定されるも
のではなく、要はねじ棒２１の回転に供されるものであ
ればよい。4 to 7 show the detailed structure of the adjusting mechanism portion 8. (Holding Body 20) The holding body 20 is orthogonal to the central groove 12 of the upper lid 3 and is erected on both extensions of the central groove 12 and has a holding hole 24 for a screw rod. The center of the holding hole 24 is coaxial with the center line of the central groove 12 on the projection plane. (Screw rod 21) The screw rod 21 is provided with screws 21a and 21b in directions opposite to each other except for both ends, both ends 21c form a journal portion, and the bearing 2 is provided in the holding hole 24 of the holding body 20.
5 to be rotatably supported. And the screw rod 21
One end portion 21d is an engaging portion that receives a rotation driving portion (not shown). The rotary drive unit uses a rotary handle in manual operation and an electric motor with a reducer in mechanical operation, but is not limited to these, and the point is to provide rotation of the screw rod 21. If
【００１５】（移動固定子２２）移動固定子２２は、ね
じ棒２１に螺合し該ねじ棒２１の回転により推力を得る
螺合部位２７と、板ばねリング７を摺動的に挟着する固
定部位２８（上部固定部位２８ａ、下部固定部位２８
ｂ）と、案内用の当て金２９及びボルト（・ナット）３
０とからなる。もっと詳しくは、螺合部位２７にはねじ
孔３２が形成され、ねじ棒２１に螺合するとともに、ね
じ棒２１の回転によりねじ棒２１の軸心に沿って前後進
する。すなわち、図４において、ねじ棒２１に順回転を
与えると、図における左側の螺合部位２７ではイ方向
へ、右側の螺合部位２７はロ方向へと進む。固定部位２
８は、その幅（Ｙ方向）は上面板２ａの案内溝１１に嵌
装される長さとされ、その長さ（Ｘ方向）も板ばねリン
グ７を十分に保持する一定長さを有する。上部固定部位
２８ａと下部固定部位２８ａとの対向面には板ばねリン
グ７を挟み込むに足る幅の溝３３ａ，３３ｂを有し、上
部及び下部固定部位２８ａ，２８ｂが衝接して板ばねリ
ング７を保持する。固定部位２８の両側には、長さ方向
（Ｘ方向）に相並んで、上部固定部位２８ａにはボルト
挿通孔３４が、また下部固定部位２８ｂにはねじ孔３５
が、それぞれ厚さ方向（Ｚ方向）に貫通状に穿設され
る。該ボルト貫通孔３４及びねじ孔３５は設置位置で上
蓋３の側溝１３に対応する。案内用のボルト（・ナッ
ト）３０は、上蓋３に載置された当て金２９を介して、
上部固定部位２８ａのボルト挿通孔３４に挿通され、そ
のねじ部を下部固定部位２８ｂのねじ孔３５に締め込ん
で固定される。(Movable Stator 22) The movable stator 22 slidably clamps the leaf spring ring 7 and a screwing portion 27 that is screwed into the screw rod 21 and obtains thrust by the rotation of the screw rod 21. Fixed part 28 (upper fixed part 28a, lower fixed part 28
b), a guide pad 29 and a bolt (/ nut) 3
It consists of 0. More specifically, a screw hole 32 is formed in the screwing portion 27, and the screw hole 21 is screwed into the screw rod 21 and moves forward and backward along the axis of the screw rod 21 by the rotation of the screw rod 21. That is, in FIG. 4, when the screw rod 21 is rotated in the forward direction, the screwing portion 27 on the left side moves in the direction a and the screwing portion 27 on the right side moves in the direction b. Fixed part 2
8 has a width (Y direction) which is a length to be fitted into the guide groove 11 of the upper surface plate 2a, and a length (X direction) also has a constant length sufficient to hold the leaf spring ring 7. Grooves 33a, 33b having a width sufficient to sandwich the leaf spring ring 7 are provided on the surfaces of the upper fixed portion 28a and the lower fixed portion 28a, and the upper and lower fixed portions 28a, 28b are in contact with each other to form the leaf spring ring 7. Hold. On both sides of the fixed portion 28, bolt insertion holes 34 are provided in the upper fixed portion 28a, and screw holes 35 are provided in the lower fixed portion 28b side by side in the length direction (X direction).
Are pierced in the thickness direction (Z direction). The bolt through hole 34 and the screw hole 35 correspond to the side groove 13 of the upper lid 3 at the installation position. The guide bolt (/ nut) 30 is inserted through the pad 29 placed on the upper lid 3,
The bolt is inserted into the bolt insertion hole 34 of the upper fixing portion 28a, and the threaded portion thereof is tightened and fixed in the screw hole 35 of the lower fixing portion 28b.
【００１６】減衰部９ 図１、図２及び図８に示すように、減衰部９は、本実施
例ではいわゆるオイルダンパーが使用され、重錘部６の
下面の中央に凹設された凹部３７に配される。底板１上
に円筒状のシリンダ体３８が設置され、その内部にオイ
ルＬが充填され、上部に被嵌された蓋３９をもって密封
される。一方、重錘部６にはピストン４０の基部が固定
され、そのピストン杆４０ａが蓋３９に貫通し、その円
板体４０ｂがオイルＬ内に配される。円板体４０ｂの周
縁部とシリンダ体３８の内壁面とはわずかな間隙Ｓを存
する。また、円板体４０ｂには所要数の小孔４０ｃが開
設される。オイル室は円板体４０ｂにより上室と下室と
に区画され、円板体４０ｂの上下動により間隙Ｓ及び小
孔４０ｃを通過するオイルＬの流動抵抗をもって減衰作
用をなす。 Damping portion 9 As shown in FIGS. 1, 2 and 8, the damping portion 9 is a so-called oil damper used in this embodiment, and a recess 37 is formed in the center of the lower surface of the weight portion 6. Will be distributed to. A cylindrical cylinder body 38 is installed on the bottom plate 1, oil L is filled in the cylinder body 38, and a lid 39 fitted on the upper portion is sealed. On the other hand, the base portion of the piston 40 is fixed to the weight portion 6, the piston rod 40a penetrates the lid 39, and the disc body 40b is arranged in the oil L. There is a slight gap S between the peripheral edge of the disc body 40b and the inner wall surface of the cylinder body 38. Further, a required number of small holes 40c are opened in the disc body 40b. The oil chamber is divided into an upper chamber and a lower chamber by the disc body 40b, and the vertical movement of the disc body 40b provides a damping action with the flow resistance of the oil L passing through the gap S and the small hole 40c.
【００１７】減衰部９は、図例のものに限らず、その他
の態様のもの、例えば、図９に示すように粘性せん断抵
抗型のダンパも使用されうる。すなわち、該減衰部９Ａ
は、底板１上に固設された円筒状の固定筒体４２と、重
錘部６の下面より固定筒体４２内に垂設される同じく同
筒状の可動筒体４３と、固定筒体４２内に充填された粘
性流体Ｌとからなる。固定筒体４２の内面と可動筒体４
３の外面との相対する面間は、所定の微小間隔Ｓに保持
され、両者間に介装する粘性流体Ｌにより生ずる粘性抵
抗をもって重錘部６の振動を減衰させる。減衰部９Ａの
固定筒体４２及び可動筒体４３は円筒状に限定されず、
四角形状を含む。また、可動筒体４３は板状であっても
よい。The damping unit 9 is not limited to the one shown in the drawing, but other forms such as a viscous shear resistance type damper as shown in FIG. 9 can be used. That is, the attenuator 9A
Is a cylindrical fixed cylindrical body 42 fixedly mounted on the bottom plate 1, a movable cylindrical body 43 having the same cylindrical shape suspended from the lower surface of the weight portion 6 into the fixed cylindrical body 42, and a fixed cylindrical body. And a viscous fluid L filled in 42. Inner surface of fixed cylinder 42 and movable cylinder 4
A predetermined minute interval S is maintained between the surfaces of the outer surface 3 facing the outer surface, and the vibration of the weight portion 6 is damped by viscous resistance generated by the viscous fluid L interposed therebetween. The fixed cylindrical body 42 and the movable cylindrical body 43 of the damping portion 9A are not limited to the cylindrical shape,
Including square shape. Further, the movable cylindrical body 43 may have a plate shape.
【００１８】このような本実施例の動吸振装置Ｄは、上
下方向の振動に卓越する建物・橋梁等の構造物の主振動
系において、当該構造物の振動方向、特にはその腹部に
重錘部６の移動方向（換言すればＺ方向）を合致させて
設置する。本実施例の動吸振装置Ｄにおいて、ケーシン
グ４（あるいは重錘部６並びに板ばねリング７を含め
て）は幅狭の直方体を採り、このため、狭小なＩ形梁の
フランジ上に設置されうるようになっている。In the main vibration system of a structure such as a building or a bridge which excels in vertical vibration, the dynamic vibration absorbing device D of this embodiment has a weight in the vibration direction of the structure, particularly in the abdomen thereof. The moving direction of the unit 6 (in other words, the Z direction) is set to match. In the dynamic vibration absorbing device D of the present embodiment, the casing 4 (or the weight portion 6 and the leaf spring ring 7) has a narrow rectangular parallelepiped, and therefore can be installed on the flange of the narrow I-shaped beam. It is like this.
【００１９】図１０はＩ形梁への取付け要領を示す。図
において、５０はＩ形梁であって、５０ａはそのウェ
ブ、５０ｂはその下フランジであり、上フランジは図示
を省略した。そして、本動吸振装置Ｄのケーシング４の
下底には前面側に長手方向に取付け板５２を添設し、ケ
ーシング４の上面すなわち上蓋３上の後部には長手方向
に所定間隔を保って（通常は両端）アングル材５４を配
する。設置に付き、取付け板５２をＩ形梁５０の下フラ
ンジ５０ｂに当接させ、また、アングル材５４をウェブ
５０ａに当接させ、アングル材５４とウェブ５０ａとを
取付けボルト５６をもって取り付ける。FIG. 10 shows a mounting procedure for an I-shaped beam. In the figure, 50 is an I-shaped beam, 50a is its web, 50b is its lower flange, and its upper flange is omitted. A mounting plate 52 is attached to the front side of the lower bottom of the casing 4 of the dynamic vibration damping device D in the longitudinal direction, and a predetermined interval is maintained in the longitudinal direction on the upper surface of the casing 4, that is, the rear portion on the upper lid 3. Angle members 54 are arranged (usually both ends). For installation, the mounting plate 52 is brought into contact with the lower flange 50b of the I-shaped beam 50, the angle member 54 is brought into contact with the web 50a, and the angle member 54 and the web 50a are attached with the attaching bolts 56.
【００２０】（実施例の作用・効果）上記のように構成
された本実施例の動吸振装置Ｄは以下のように作用す
る。外力により主振動系に振動が生起すると、本動吸振
装置Ｄにおいて、重錘部６は固定系をなすケーシング４
内においてコイルばね５と板ばねリング７とに支持され
たものとなっており、重錘部６（換言すれば本動吸振装
置Ｄ）の固有振動数は、重錘部６の質量並びにコイルば
ね５及び板ばねリング７のばね定数によって決まり、本
動吸振装置Ｄはこの振動特性によって振動する。この
時、板ばねリング７はこの動きをその横剛性により上下
の一方向移動にのみ規制する。しかして、重錘部６の振
動は構造物の振動と合致するように調整されたものとな
っており、これにより、本動吸振装置Ｄが共振状態とな
り、主振動系の振動を吸収する。そして更に、減衰部９
によりその変位と反対方向への減衰力を受けて主振動系
の振動を速やかに減衰させる。すなわち、減衰部９にお
いては、重錘部６の上下動に追従して円板体４０ｂはオ
イル室を上下動するが、間隔Ｓ及び小孔４０ｃを通過す
るオイルＬの流動抵抗をもって、減衰作用をなす。(Operation / Effect of Embodiment) The dynamic vibration absorbing device D of the present embodiment configured as described above operates as follows. When vibration occurs in the main vibration system due to an external force, in the dynamic vibration absorbing device D, the weight 6 is fixed to the casing 4
It is supported inside by a coil spring 5 and a leaf spring ring 7, and the natural frequency of the weight portion 6 (in other words, the dynamic vibration absorbing device D) is determined by the mass of the weight portion 6 and the coil spring. 5 and the spring constant of the leaf spring ring 7, the dynamic vibration absorbing device D vibrates due to this vibration characteristic. At this time, the leaf spring ring 7 restricts this movement to only one movement in the vertical direction due to its lateral rigidity. Then, the vibration of the weight portion 6 is adjusted so as to match the vibration of the structure, whereby the main vibration absorbing device D is in a resonance state and absorbs the vibration of the main vibration system. And further, the attenuator 9
Thus, the vibration of the main vibration system is promptly damped by receiving the damping force in the direction opposite to the displacement. That is, in the damping portion 9, the disc body 40b moves up and down in the oil chamber in accordance with the vertical movement of the weight portion 6, but with the flow resistance of the oil L passing through the space S and the small hole 40c, the damping action is exerted. Make up.
【００２１】主振動系の構造物の振動特性の変化に対
し、調整機構部８の移動固定子２２の移動をもって本動
吸振装置Ｄの固有振動数の調整をなす。すなわち、橋梁
等の構造物の固有振動周期は構築後において設計値とは
相違する場合があり、また、構築後においても改修工事
により固有振動周期が変化する。これに対応して、本動
吸振装置Ｄの固有振動数を高くする場合には、移動固定
子２２の間隔を大きくし、ばね定数を大きくする。ま
た、本装置Ｄの固有振動数を低くする場合には、移動固
定子２２の間隔を小さくし、ばね定数を小さくする。こ
の調整操作に当たって、調整機構部８において、ねじ棒
２１の端部の係合部２１ｄに適宜の回転駆動部を連結
し、ねじ棒２１の回転をもって移動固定子２２の移動を
なす。ねじ棒２１は互いに逆ねじ２１ａ，２１ｂに刻設
されたものとなっているので、２つの移動固定子２２は
互いに反対方向へ移動することになる。In response to changes in the vibration characteristics of the structure of the main vibration system, the moving frequency of the moving stator 22 of the adjusting mechanism section 8 adjusts the natural frequency of the main vibration absorbing device D. That is, the natural vibration period of a structure such as a bridge may be different from the design value after the construction, and the natural vibration period also changes after the construction due to the repair work. Correspondingly, when increasing the natural frequency of the dynamic vibration absorbing device D, the interval between the moving stators 22 is increased and the spring constant is increased. When the natural frequency of the device D is reduced, the interval between the moving stators 22 is reduced and the spring constant is reduced. In this adjusting operation, in the adjusting mechanism portion 8, an appropriate rotation driving portion is connected to the engaging portion 21d at the end of the screw rod 21, and the moving stator 22 is moved by the rotation of the screw rod 21. Since the screw rod 21 is formed by engraving the reverse screws 21a and 21b, the two moving stators 22 move in opposite directions.
【００２２】このように、本実施例の動吸振装置Ｄによ
れば、重錘部６の上下動に摩擦が生ぜず、理想的な上下
運動が得られる。また、重錘部６と板ばねリング７とは
重畳的に配されるので、固定系としてのケーシング４は
横幅を取らず、幅狭のケーシング４として狭い設置場所
に対応することができる。更には、調整機構部８の移動
固定子２２の移動により本動吸振装置Ｄの固有振動数を
調整し、容易に主振動系の振動周期の変化に対応するこ
とができる。また、移動固定子２２の移動はねじ送りに
よるので、連続的にして、かつ正確な調整ができ、従っ
て、固有振動数の最適値を容易に探し出すことができ
る。As described above, according to the dynamic vibration absorbing device D of this embodiment, friction does not occur in the vertical movement of the weight portion 6, and an ideal vertical movement can be obtained. Further, since the weight 6 and the leaf spring ring 7 are arranged in a superposed manner, the casing 4 as a fixed system does not have a lateral width, and the narrow casing 4 can be used in a narrow installation place. Furthermore, the natural frequency of the main vibration damping device D can be adjusted by moving the moving stator 22 of the adjusting mechanism section 8 to easily respond to changes in the vibration cycle of the main vibration system. Further, since the moving stator 22 is moved by screw feeding, it is possible to make continuous and accurate adjustments, and therefore, it is possible to easily find the optimum value of the natural frequency.
【００２３】（第２実施例）図１１〜図１３は本発明の
調整機構付き動吸振装置の他の実施例（第２実施例）を
示す。本実施例の調整機構付き動吸振装置Ｄ１は横振動
に対応する。図において、Ｘはこの動吸振装置Ｄ１が対
応する主たる振動系の水平方向、ＹはＸ方向に直交する
水平方向、Ｚは上下方向を示す。(Second Embodiment) FIGS. 11 to 13 show another embodiment (second embodiment) of the dynamic vibration absorbing device with an adjusting mechanism according to the present invention. The dynamic vibration absorbing device D1 with an adjusting mechanism of the present embodiment corresponds to lateral vibration. In the figure, X indicates the horizontal direction of the main vibration system to which the dynamic vibration absorbing device D1 corresponds, Y indicates the horizontal direction orthogonal to the X direction, and Z indicates the vertical direction.
【００２４】本調整機構付き動吸振装置Ｄ１は、底板１
０１と該底板１０１上に立設される外枠体１０２とから
なり、固定系を形成するケーシング１０３と、該ケーシ
ング１０３内において、底板１０１上に設置された、転
動部１０４上に載置され、水平動自在の可動系を形成す
る重錘部１０５と、同じくケーシング１０３内におい
て、重錘部１０５の両側に配され、外枠体１０２と重錘
部１０５との間に介装されるとともに重錘部１０５に連
動する板ばねリング１０６と、該板ばねリング１０６に
連動し、外枠体１０２に沿って配される振動数の調整機
構部１０７と、からなる。しかして、この構成によれ
ば、重錘部１０５が転動部１０４で支持される点、板ば
ねリング１０６が重錘部１０５の両側面に配される点、
調整機構部１０７がケーシング１０３の側面で配される
点、以外では第１実施例と本質的な差異はない。The dynamic vibration absorbing device D1 with the adjusting mechanism includes a bottom plate 1
01 and an outer frame body 102 that stands upright on the bottom plate 101 to form a fixed system, and in the casing 103, the casing 103 is placed on the rolling portion 104 installed on the bottom plate 101. The weight 105 that forms a horizontally movable movable system is also arranged on both sides of the weight 105 in the casing 103, and is interposed between the outer frame 102 and the weight 105. A leaf spring ring 106 that interlocks with the weight portion 105 and a frequency adjusting mechanism portion 107 that interlocks with the leaf spring ring 106 and is arranged along the outer frame 102. Thus, according to this configuration, the weight portion 105 is supported by the rolling portion 104, and the leaf spring rings 106 are arranged on both side surfaces of the weight portion 105.
There is no essential difference from the first embodiment except that the adjusting mechanism 107 is arranged on the side surface of the casing 103.
【００２５】転動部１０４は、重錘部１０５を移動自在
に、かつ、安定的に支持すべく、重錘部１０５の下面の
４か所に配される。転動部１０４は、上面板１１０と下
面板１１１との間に転動子１１２を介装させてなり、転
動子１１２として球状体あるいは丸棒状体が採用され
る。板ばねリング１０６は、重錘部１０５の両側に配さ
れ、その一方で固定部材１１４を介して重錘部１０５に
固定される。該板ばねリング１０６はその板面を立てて
置かれ、Ｚ方向への変位は拘束され、Ｘ方向の変位は自
在である。板ばねリング１０６は、他方で調整機構部１
０７に連動する。The rolling portions 104 are arranged at four positions on the lower surface of the weight portion 105 in order to movably and stably support the weight portion 105. The rolling portion 104 includes a rolling element 112 interposed between an upper surface plate 110 and a lower surface plate 111, and a spherical body or a round bar-shaped body is adopted as the rolling element 112. The leaf spring rings 106 are arranged on both sides of the weight portion 105, while being fixed to the weight portion 105 via the fixing member 114. The leaf spring ring 106 is placed with its plate surface upright, the displacement in the Z direction is restrained, and the displacement in the X direction is free. The leaf spring ring 106, on the other hand,
It works together with 07.
【００２６】調整機構部１０７は外枠体１０２に沿って
配され、その構成は第１実施例の調整機構部８に準ず
る。外枠体１０２には、中央溝１１６及び側溝１１７が
穿設される。また、調整機構部１０７は、保持体１１９
と、ねじ棒１２０と、移動固定子１２１とからなる。保
持体１１９は中央溝１１６の両側に配され、ねじ棒１２
０は保持体１１９間に回転自在に枢支され、移動固定子
１２１はねじ棒１２０に螺合関係をもって保持される。
移動固定子１２１は板ばねリング１０６を摺動自在に把
持するとともに、ねじ棒１２０の回転により２つの移動
固定子１２１は互いに逆方向に移動する。The adjusting mechanism 107 is arranged along the outer frame 102, and its configuration is similar to that of the adjusting mechanism 8 of the first embodiment. A central groove 116 and a side groove 117 are formed in the outer frame body 102. In addition, the adjustment mechanism unit 107 includes a holder 119.
, A screw rod 120, and a moving stator 121. The holders 119 are arranged on both sides of the central groove 116, and
0 is rotatably supported between holding bodies 119, and the movable stator 121 is held by the threaded rod 120 in a threaded relationship.
The moving stator 121 grips the leaf spring ring 106 slidably, and the two moving stators 121 move in opposite directions by the rotation of the screw rod 120.
【００２７】この調整機構付き動吸振装置Ｄ１によれ
ば、強制振動力が構造物に作用すると、重錘部１０５は
主振動方向（Ｘ方向）にのみ移動可能となっており、板
ばねリング１０６のばね定数に応じて振動し、構造物の
振動を吸収する。本動吸振装置Ｄ１の固有振動数の調整
に当たっては、調整機構部１０７のねじ棒１２０を回動
させ、移動固定子１２１を移動させ、板ばねリング１０
６の固定位置を変化させて調整を行う。According to the dynamic vibration absorbing device D1 with the adjusting mechanism, when the forced vibration force acts on the structure, the weight portion 105 can move only in the main vibration direction (X direction), and the leaf spring ring 106. It vibrates according to the spring constant of and absorbs the vibration of the structure. In adjusting the natural frequency of the dynamic vibration absorbing device D1, the screw rod 120 of the adjusting mechanism 107 is rotated, the moving stator 121 is moved, and the leaf spring ring 10 is moved.
Adjustment is performed by changing the fixed position of 6.
【００２８】なお、本実施例では減衰部は設けられてい
ないが、重錘部１０５とケーシング１０３との間に減衰
部１２３（破線表示）を配することができる。更に、２
つの板ばねリング１０６のうちの１つを廃し、第１実施
例に準じるコイルばねに置換し、１つの板ばねリング１
０６とすることができる。Although no damping portion is provided in this embodiment, a damping portion 123 (indicated by a broken line) can be arranged between the weight portion 105 and the casing 103. Furthermore, 2
One of the two leaf spring rings 106 is eliminated and replaced with a coil spring according to the first embodiment, and one leaf spring ring 1 is used.
It can be 06.
【００２９】本発明は上記実施例に限定されたものでは
なく、本発明の基本的技術思想の範囲内で種々設計変更
が可能である。すなわち、以下の態様は本発明の技術範
囲内に包含されるものである。 本実施例では、ケーシング４は箱状の態様を採る
が、底板１上に立設される柱材であってもその機能に変
るところはない。また、第１実施例の上蓋３も平板状に
限定されず骨組体その他の態様を採りうる。 叙上の２つの実施例ではケーシング４は四角枠体を
なすが、３角形、６角形等の多角形状を採りうるととも
に、重錘部６もこれに対応する多角形状とされる。The present invention is not limited to the above embodiment, but various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention. In the present embodiment, the casing 4 has a box-like form, but the function of the pillar material standing on the bottom plate 1 is not changed. Further, the upper lid 3 of the first embodiment is not limited to the flat plate shape, and may have a frame structure or other aspects. In the above two embodiments, the casing 4 has a quadrangular frame body, but may have a polygonal shape such as a triangle or a hexagon, and the weight portion 6 also has a polygonal shape corresponding thereto.
【００３０】Ｃ．発明の効果 本発明の請求項１及び請求項４の動吸振装置によれば、
重錘部の上下動に摩擦が生ぜず、理想的な上下運動が得
られる。また、重錘部と板ばねリングとは重畳的に配さ
れるので、固定系としてのケーシングは横幅を取らず、
幅狭のケーシングとして狭い設置場所に対応することが
できる。更には、請求項１及び請求項２においては、板
ばねリングの一方を把持する移動固定子の移動により本
動吸振装置の固有振動数を調整し、容易に主振動系の振
動周期の変化に対応することができる。C. Advantageous Effects of Invention According to the dynamic vibration absorbing device of claims 1 and 4 of the present invention,
The vertical motion of the weight does not cause friction, and ideal vertical motion can be obtained. Further, since the weight portion and the leaf spring ring are arranged in a superposed manner, the casing as a fixed system does not have a lateral width,
As a narrow casing, it can be used in a narrow installation place. Further, according to the first and second aspects, the natural frequency of the main vibration absorbing device is adjusted by moving the moving stator that holds one of the leaf spring rings, so that the vibration cycle of the main vibration system can be easily changed. Can respond.
【図１】本発明の調整機構付き動吸振装置の一実施例の
全体構成を示す縦断面図（図２・図３のＩ−Ｉ線断面
図）。FIG. 1 is a vertical cross-sectional view (cross-sectional view taken along line I-I of FIGS. 2 and 3) showing the overall configuration of an embodiment of a dynamic vibration absorbing device with an adjusting mechanism of the present invention.
【図２】本実施例装置の横断面図（図１・図３のII−II
線断面図）。FIG. 2 is a cross-sectional view of the apparatus of this embodiment (II-II in FIGS. 1 and 3).
Line cross section).
【図３】本実施例装置の平面図（図１のIII 方向矢視
図）。FIG. 3 is a plan view of the device of this embodiment (a view in the direction of arrow III in FIG. 1).
【図４】調整機構部の一部省略拡大縦断面図（図５のIV
-IV 線縦断面図）。FIG. 4 is a partially omitted enlarged vertical cross-sectional view of an adjustment mechanism section (IV in FIG. 5).
-IV vertical section).
【図５】調整機構部の一部省略拡大平面図（図４のＶ方
向矢視図）。FIG. 5 is an enlarged plan view of a part of the adjustment mechanism section (viewed in the direction of arrow V in FIG. 4).
【図６】調整機構部の一部省略拡大横断面図（図４・図
５のVI-VI 線縦断面図) 。FIG. 6 is a partially omitted enlarged horizontal cross-sectional view of the adjusting mechanism section (a vertical cross-sectional view taken along the line VI-VI in FIGS. 4 and 5).
【図７】調整機構部の一部品（移動固定子）の斜視図FIG. 7 is a perspective view of one component (movable stator) of the adjustment mechanism section.
【図８】減衰部の拡大断面図。FIG. 8 is an enlarged cross-sectional view of a damping portion.
【図９】減衰部の他の態様を示す断面図。FIG. 9 is a cross-sectional view showing another aspect of the damping section.
【図１０】本実施例装置の取付け要領図。FIG. 10 is a diagram showing how to install the device of this embodiment.
【図１１】本発明の調整機構付き動吸振装置の他の実施
例の全体構成を示す平面図（図１２のXI方向矢視図）。FIG. 11 is a plan view showing an overall configuration of another embodiment of the dynamic vibration absorbing device with an adjusting mechanism of the present invention (a view taken in the direction of arrow XI in FIG. 12).
【図１２】図１１のXII-XII 線断面図。12 is a sectional view taken along line XII-XII in FIG.
【図１３】図１１のXIII方向矢視図。FIG. 13 is a view on arrow XIII in FIG.
【図１４】動吸振装置の概念説明図。FIG. 14 is a conceptual explanatory view of a dynamic vibration absorbing device.
【図１５】動吸振装置の振動モデル。FIG. 15 is a vibration model of the dynamic vibration absorbing device.
Ｄ，Ｄ１…調整機構付き動吸振装置、１，１０１…底
板、２，１０２…外枠体、３…上蓋、４，１０３…ケー
シング、５…コイルばね、６，１０５…重錘部、７，１
０６…リング状の板ばね（板ばねリング）、８，１０７
…調整機構部、９，９Ａ…減衰部、１８、１１４…固定
部材、２２、１２１…移動固定子D, D1 ... Dynamic vibration absorber with adjusting mechanism, 1, 101 ... Bottom plate, 2, 102 ... Outer frame body, 3 ... Top lid, 4, 103 ... Casing, 5 ... Coil spring, 6, 105 ... Weight section, 7, 1
06 ... Ring-shaped leaf spring (leaf spring ring), 8,107
... adjusting mechanism section, 9, 9A ... damping section, 18, 114 ... fixing member, 22, 121 ... moving stator
Claims (4)
れる外枠体と該外枠体の開口を閉塞する上蓋とからな
り、固定系を形成するケーシングと；前記ケーシング内
において、底板上に設置されたコイルばね上に載置さ
れ、上下動自在の可動系を形成する重錘部と；前記ケー
シング内において上蓋と重錘部との間に介装されるリン
グ状の板ばねと；からなり、 前記リング状の板ばねの下部は、その中央で前記重錘部
と固定され、 該リング状の板ばねの上部は、その中央より両端部方向
に向けて移動可能な固定部材をもって固定されてなる、
ことを特徴とする動吸振装置。1. A casing comprising a bottom plate placed in a flat shape, an outer frame member standing on the bottom plate and an upper lid closing an opening of the outer frame member to form a fixed system; A weight portion placed on a coil spring installed on the bottom plate to form a vertically movable movable system; and a ring-shaped plate interposed between the upper lid and the weight portion in the casing. A lower portion of the ring-shaped leaf spring is fixed to the weight portion at the center thereof, and an upper portion of the ring-shaped leaf spring is movable from the center toward both end portions. It is fixed with a member,
A dynamic vibration absorbing device characterized by the above.
れる外枠体とからなり、固定系を形成するケーシング
と；前記ケーシング内において、底板上に設置された転
動子上に載置され、水平動自在の可動系を形成する重錘
部と；前記ケーシング内において外枠体と重錘部との間
に介装されるリング状の板ばねと；からなり、 前記リング状の板ばねと重錘部との固定位置は一定位置
で固定され、 該リング状の板ばねと外枠体との固定位置は、その中央
より両端部方向に向けて移動可能な固定部材をもって固
定されてなる、ことを特徴とする動吸振装置。2. A casing comprising a bottom plate placed flat and an outer frame body standing on the bottom plate to form a fixed system; and a rolling element installed on the bottom plate in the casing. And a ring-shaped leaf spring interposed between the outer frame and the weight in the casing. The fixed position of the ring-shaped plate spring and the weight portion is fixed at a fixed position, and the fixed position of the ring-shaped plate spring and the outer frame is a fixed member movable from the center toward both ends. A dynamic vibration absorbing device, which is fixed.
設置される請求項１又は請求項２のいずれかに記載の動
吸振装置。3. The dynamic vibration absorbing device according to claim 1, wherein a damping portion is installed between the weight portion and the casing.
れる外枠体と該外枠体の開口を閉塞する上蓋とからな
り、固定系を形成するケーシングと；前記ケーシング内
において、底板上に設置されたコイルばね上に載置さ
れ、上下動自在の可動系を形成する重錘部と；前記ケー
シング内において上蓋と重錘部との間に介装されるリン
グ状の板ばねと；前記重錘部とケーシングとの間に介装
設置される減衰部と；からなり、 前記リング状の板ばねの下部は、その中央で前記重錘部
と固定され、 該リング状の板ばねの上部は、その中央より両端部方向
に向けて等位置で上蓋に固定されてなる、ことを特徴と
する動吸振装置。4. A casing comprising a bottom plate placed in a flat shape, an outer frame member standing on the bottom plate and an upper lid closing an opening of the outer frame member to form a fixed system; A weight portion placed on a coil spring installed on the bottom plate to form a vertically movable movable system; and a ring-shaped plate interposed between the upper lid and the weight portion in the casing. And a damping portion interposed between the weight portion and the casing; a lower portion of the ring-shaped leaf spring is fixed to the weight portion at the center thereof, A dynamic vibration absorbing device, characterized in that the upper part of the leaf spring is fixed to the upper cover at the same position from the center toward both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14117295A JP3686121B2 (en) | 1995-05-16 | 1995-05-16 | Dynamic vibration absorber with adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14117295A JP3686121B2 (en) | 1995-05-16 | 1995-05-16 | Dynamic vibration absorber with adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08312716A true JPH08312716A (en) | 1996-11-26 |
| JP3686121B2 JP3686121B2 (en) | 2005-08-24 |
Family
ID=15285821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14117295A Expired - Lifetime JP3686121B2 (en) | 1995-05-16 | 1995-05-16 | Dynamic vibration absorber with adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3686121B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002101674A (en) * | 2000-09-21 | 2002-04-05 | Tokin Corp | Piezoelectric actuator |
| JP2004523708A (en) * | 2001-03-14 | 2004-08-05 | ジョン・カニンガム | Vibration isolator with adjustable response characteristics |
| JP2006219963A (en) * | 2005-02-14 | 2006-08-24 | Meiji Univ | Damping device for chimney stack |
| JP2008507640A (en) * | 2004-07-23 | 2008-03-13 | ▲隔▼而固（青島）振動控制有限公司 | Floating slave track bed |
| KR200468705Y1 (en) * | 2012-02-23 | 2013-09-10 | 에스티엑스중공업 주식회사 | Vibration Damping Device of Engine Gallery |
| JP2014025561A (en) * | 2012-07-30 | 2014-02-06 | Hitachi-Ge Nuclear Energy Ltd | Magnetic damper device |
| JP2015058528A (en) * | 2013-09-20 | 2015-03-30 | 株式会社北川鉄工所 | Retractable chuck |
| KR101522862B1 (en) * | 2014-05-22 | 2015-05-27 | 현대엘리베이터 주식회사 | Dynamic Vibration Absorber |
-
1995
- 1995-05-16 JP JP14117295A patent/JP3686121B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002101674A (en) * | 2000-09-21 | 2002-04-05 | Tokin Corp | Piezoelectric actuator |
| JP4554054B2 (en) * | 2000-09-21 | 2010-09-29 | Ｎｅｃトーキン株式会社 | Piezoelectric actuator |
| JP2004523708A (en) * | 2001-03-14 | 2004-08-05 | ジョン・カニンガム | Vibration isolator with adjustable response characteristics |
| JP2008507640A (en) * | 2004-07-23 | 2008-03-13 | ▲隔▼而固（青島）振動控制有限公司 | Floating slave track bed |
| JP4745338B2 (en) * | 2004-07-23 | 2011-08-10 | ▲隔▼而固（青島）振動控制有限公司 | Floating slave track bed |
| JP2006219963A (en) * | 2005-02-14 | 2006-08-24 | Meiji Univ | Damping device for chimney stack |
| JP4517113B2 (en) * | 2005-02-14 | 2010-08-04 | 学校法人明治大学 | Chimney damping device |
| KR200468705Y1 (en) * | 2012-02-23 | 2013-09-10 | 에스티엑스중공업 주식회사 | Vibration Damping Device of Engine Gallery |
| JP2014025561A (en) * | 2012-07-30 | 2014-02-06 | Hitachi-Ge Nuclear Energy Ltd | Magnetic damper device |
| JP2015058528A (en) * | 2013-09-20 | 2015-03-30 | 株式会社北川鉄工所 | Retractable chuck |
| KR101522862B1 (en) * | 2014-05-22 | 2015-05-27 | 현대엘리베이터 주식회사 | Dynamic Vibration Absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3686121B2 (en) | 2005-08-24 |
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