JPH06229440A - Flow regulating tool attaching structure of liquid sealed-type vibration control device - Google Patents
Flow regulating tool attaching structure of liquid sealed-type vibration control deviceInfo
- Publication number
- JPH06229440A JPH06229440A JP1364193A JP1364193A JPH06229440A JP H06229440 A JPH06229440 A JP H06229440A JP 1364193 A JP1364193 A JP 1364193A JP 1364193 A JP1364193 A JP 1364193A JP H06229440 A JPH06229440 A JP H06229440A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- partition plate
- fluctuation
- liquid
- regulating plate
- 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両用エンジンの支持
部等に用いられる防振装置、とりわけ、内部にエチレン
グリコールやシリンコンオイル等を封入した液体封入型
防振装置の流動規制具取付構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antivibration device used for a support portion of a vehicle engine, and more particularly to a flow restrictor mounting device for a liquid-filled antivibration device in which ethylene glycol, syrincon oil or the like is enclosed. Regarding the structure.
【０００２】[0002]
【従来の技術】この種の液体封入型防振装置は、内筒と
外筒を連結するゴム弾性体によって液封入部を形成する
と共にその内部を仕切板によって複数の液室に画成し、
さらにこの液室間をオリフィス通路によって連通させる
ことにより、入力振動を液室の拡張弾性とオリフィスの
当価質量による共振作用によって低減するようになって
いる。2. Description of the Related Art In this type of liquid-filled type vibration damping device, a liquid filled portion is formed by a rubber elastic body connecting an inner cylinder and an outer cylinder, and the inside thereof is divided into a plurality of liquid chambers by partition plates.
Further, by connecting the liquid chambers with each other through an orifice passage, the input vibration is reduced by the resonance action due to the expansion elasticity of the liquid chamber and the equivalent mass of the orifice.
【０００３】ところで、エンジンマウント等では、エン
ジンシェイク（振動周波数域が１０Ｈｚ付近）のような
低周波大振幅の振動に対する振動低減特性と、アイドル
振動（振動周波数域が２０〜３０Ｈｚ）のような高周波
小振幅の振動に対する振動低減特性とを要求されること
があり、このような場合、当価質量の異なる二種のオリ
フィス通路を備えた防振装置によってこれに対処するよ
うにしている。By the way, in an engine mount or the like, a vibration reduction characteristic for a low-frequency large-amplitude vibration such as an engine shake (a vibration frequency range of about 10 Hz) and a high frequency such as an idle vibration (a vibration frequency range of 20 to 30 Hz). In some cases, vibration reduction characteristics for small-amplitude vibration are required, and in such a case, this is dealt with by a vibration isolation device having two types of orifice passages having different equivalent masses.
【０００４】このような防振装置としては、小断面のオ
リフィス通路を外筒内周面に沿って形成する一方で、仕
切板に連通孔（大断面のオリフィス通路）を形成し、こ
の仕切板に、その連通孔に臨ませるようにして流動規制
具を取り付けるようにしたものがある。ここで用いられ
る流動規制具は、液室間の液圧変動に伴って変動する可
動板と、この可動板の変動を規制する変動規制板とから
構成され、小振幅の振動の入力時にのみ可動板が変動し
て連通孔を通した液体の流動が行われるようになってい
る。このため、この防振装置にあっては、低周波大振幅
の振動の入力時には当価質量の大きい外筒側のオリフィ
スが主に振動低減に寄与し、高周波小振幅の振動の入力
時には当価質量の小さい連通孔が振動低減に寄与する。In such a vibration isolator, an orifice passage having a small cross section is formed along the inner peripheral surface of the outer cylinder, while a communication hole (orifice passage having a large cross section) is formed in the partition plate. In some cases, a flow restrictor is attached so as to face the communication hole. The flow restrictor used here is composed of a movable plate that fluctuates according to the fluctuation of the liquid pressure between the liquid chambers and a fluctuation restricting plate that restricts the fluctuation of the movable plate, and is movable only when a small amplitude vibration is input. The plate moves so that the liquid flows through the communication hole. Therefore, in this anti-vibration device, the orifice of the outer cylinder side, which has a large equivalent mass, mainly contributes to vibration reduction when inputting vibration of low frequency and large amplitude, and the equivalent value when inputting vibration of high frequency and small amplitude. The communication hole having a small mass contributes to vibration reduction.
【０００５】また、この種の防振装置の流動規制具は、
変動規制板に貫通孔を形成し、仕切板側に突設した突起
をこの貫通孔に嵌入し後に、その突起の先端をかしめる
ことによって仕切板上に取り付けられている。Further, the flow restrictor of this type of vibration damping device is
A through hole is formed in the fluctuation regulation plate, and a projection protruding toward the partition plate is fitted into the through hole, and then the tip of the projection is caulked to be mounted on the partition plate.
【０００６】尚、この類似技術は、例えば特開平４−６
０２３３号公報等に示されている。This similar technique is disclosed in, for example, Japanese Patent Laid-Open No. 4-6.
No. 0233 publication.
【０００７】[0007]
【発明が解決しようとする課題】しかし、上記従来の流
動規制具の取付構造にあっては、変動規制板をかしめに
よって仕切板に固定するようにしているため、取付作業
が繁雑であるうえに、変動規制板を仕切板上に充分に密
着させることが難しいという不具合ある。However, in the above-mentioned conventional mounting structure for the flow restricting tool, since the fluctuation restricting plate is fixed to the partition plate by caulking, the mounting work is complicated. However, there is a problem in that it is difficult to bring the fluctuation regulation plate into close contact with the partition plate.
【０００８】そこで本発明は、取付作業が極めて容易で
あり、しかも、変動規制板を仕切板上に確実に密接させ
ることができる液体封入型防振装置の流動規制具取付構
造を提供しようとするものである。Therefore, the present invention intends to provide a flow restrictor mounting structure for a liquid-filled type vibration damping device which is extremely easy to mount and which can surely bring the fluctuation restricting plate into close contact with the partition plate. It is a thing.
【０００９】[0009]
【課題を解決するための手段】本発明は上述した課題を
解決するための手段として、液封入部内で二室を画成す
る断面コ字状の仕切板にこの二室を連通させる連通孔を
設け、可動板とこの可動板の変動を規制する変動規制板
とから成る流動規制具を前記仕切板にその連通孔に臨ま
せて取り付ける取付構造において、前記仕切板の対向す
る側壁に円柱状の突起を夫々配設する一方で、前記流動
規制具の変動規制板を弾性を有する金属によって形成す
ると共に、この変動規制板の両側縁部に上面が滑らかな
凹形状となった係止片を一体に形成し、前記変動規制板
を仕切板の側壁間にスライドさせて突起を係止片の凹状
部に嵌合係止させるようにした。According to the present invention, as means for solving the above-mentioned problems, a partition plate having a U-shaped cross-section that defines two chambers in a liquid sealing portion is provided with a communication hole for communicating these chambers. In a mounting structure in which a flow restricting device that is provided and that includes a movable plate and a fluctuation restricting plate that restricts fluctuations of the movable plate is attached to the partition plate so as to face the communication hole, a columnar shape is provided on opposite side walls of the partition plate. While arranging the protrusions respectively, the fluctuation regulating plate of the flow restricting tool is formed of elastic metal, and the locking pieces having a smooth upper surface are integrally formed on both side edges of the fluctuation regulating plate. The fluctuation regulating plate is slid between the side walls of the partition plate so that the projection is fitted and locked in the concave portion of the locking piece.
【００１０】[0010]
【作用】変動規制板を仕切板の側壁間にスライドさせる
と、係止片が突起との当接によって弾性変形させられ、
最終的に突起がその凹状部に圧接状態で嵌合係止され
る。[Function] When the fluctuation regulating plate is slid between the side walls of the partition plate, the locking piece is elastically deformed by contact with the projection,
Finally, the projection is fitted and locked in the concave portion in a pressure contact state.
【００１１】[0011]
【実施例】次に、本発明の一実施例を図面に基づいて説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings.
【００１２】図２，図３において、１は、図示しないロ
ッドを介して車体側に取り付けられる内筒であり、２
は、図示しないブラケットを介してエンジン側に取り付
けられる外筒である。外筒２は上部に一対の開口が形成
され、そこにダイヤフラム３ａ，３ｂが付設されてい
る。また、外筒２の内周側には上部に窓４を有する筒金
５が嵌着固定されており、この筒金５と内筒１の間には
ゴム弾性体６が介装されている。このゴム弾性体６は外
筒２の両端面を覆うように両端部が径方向外方に延設さ
れており、略中央部上面には外筒２とダイヤフラム３
ａ，３ｂと共に液封入部７を構成する凹部８が設けら
れ、下面側には内筒１と外筒２の径方向の相対変位を許
容する空洞部９が設けられている。In FIGS. 2 and 3, reference numeral 1 denotes an inner cylinder attached to the vehicle body side through a rod (not shown).
Is an outer cylinder attached to the engine side via a bracket (not shown). The outer cylinder 2 has a pair of openings formed in the upper portion, and diaphragms 3a and 3b are attached thereto. Further, a barrel metal 5 having a window 4 at the upper part is fitted and fixed on the inner peripheral side of the outer barrel 2, and a rubber elastic body 6 is interposed between the barrel metal 5 and the inner barrel 1. . Both ends of the rubber elastic body 6 are extended outward in the radial direction so as to cover both end surfaces of the outer cylinder 2, and the outer cylinder 2 and the diaphragm 3 are provided on the upper surface of the substantially central portion.
A concave portion 8 that constitutes the liquid sealing portion 7 together with a and 3b is provided, and a cavity portion 9 that allows relative radial displacement of the inner cylinder 1 and the outer cylinder 2 is provided on the lower surface side.
【００１３】また、ゴム弾性体６の凹部８には断面コ字
状の仕切板１０が嵌着され、液封入部７がこの仕切板１
０によって下方の第１液室１１と上方の第２液室１２と
に画成されている。仕切板１０は、ゴム弾性体６の接線
方向（図２中左右方向）に延出する両端部が筒金５の窓
４を横切って外筒２の内周面に接合されており、その一
端側の接合部近傍部分には第２液室１２に臨む開口１３
が形成されている。尚、第１液室１１は、中心側が内筒
１に結合されたゴム弾性体６と、両端部が外筒２に接合
された仕切板１０とによって室壁が形成されているた
め、内筒１と外筒２が径方向に相対変位すると、その変
位に伴って室壁（ゴム弾性体６部分）が弾性変形する。Further, a partition plate 10 having a U-shaped cross section is fitted in the recess 8 of the rubber elastic body 6, and the liquid sealing portion 7 is provided in the partition plate 1.
0 defines a lower first liquid chamber 11 and an upper second liquid chamber 12. Both ends of the partition plate 10 extending in the tangential direction of the rubber elastic body 6 (the left-right direction in FIG. 2) cross the window 4 of the barrel 5 and are joined to the inner peripheral surface of the outer cylinder 2, and one end of the partition plate 10 is joined. The opening 13 facing the second liquid chamber 12 is provided in the vicinity of the joint on the side.
Are formed. The first liquid chamber 11 has a chamber wall formed by a rubber elastic body 6 having a center side coupled to the inner cylinder 1 and a partition plate 10 having both ends joined to the outer cylinder 2. When 1 and the outer cylinder 2 are relatively displaced in the radial direction, the chamber wall (the rubber elastic body 6 portion) is elastically deformed along with the displacement.
【００１４】さらに、筒金５下半の外周面には半円筒部
材１４が取り付けられており、この半円筒部材１４に断
面積の小さいオリフィス通路１５が形成されている。こ
のオリフィス通路１５は一端が直接第１液室１１に連通
する一方で、他端が開口１３を介して第２液室１２に連
通しており、低周波大振幅の振動が入力された際に液体
がこのオリフィス通路１５内を流動して入力振動を低減
させるようになっている。Further, a semi-cylindrical member 14 is attached to the outer peripheral surface of the lower half of the tubular member 5, and an orifice passage 15 having a small cross-sectional area is formed in the semi-cylindrical member 14. The orifice passage 15 has one end directly communicating with the first liquid chamber 11 and the other end communicating with the second liquid chamber 12 through the opening 13, and when a low-frequency large-amplitude vibration is input. The liquid flows in the orifice passage 15 to reduce the input vibration.
【００１５】また、前記仕切板１０の略中央部には複数
の連通孔１６（オリフィス通路）が形成されていて、こ
の連通孔１６が第１液室１１と第２液室１２の間の液体
の流動を可能にしている。ただし、この連通孔１６に臨
む仕切板１０の上面には流動規制具１７が取り付けられ
て、低周波大振幅の振動の入力時には、この流動規制具
１７が連通孔１６の液体の流動を規制するようになって
いる。つまり、連通孔１６は高周波小振幅の振動の入力
時にのみ液体の流動を許容してその入力振動を低減させ
る。流動規制具１７は、可動板としてのゴム板１８と、
このゴム板１８の変動を規制する変動規制板１９とから
構成されており、変動規制板１９には仕切板１０と同様
な連通孔２０が形成されている。Further, a plurality of communication holes 16 (orifice passages) are formed in the substantially central portion of the partition plate 10, and the communication holes 16 form the liquid between the first liquid chamber 11 and the second liquid chamber 12. It enables the flow of. However, a flow restrictor 17 is attached to the upper surface of the partition plate 10 facing the communication hole 16, and the flow restrictor 17 restricts the flow of the liquid in the communication hole 16 when a low-frequency large-amplitude vibration is input. It is like this. That is, the communication hole 16 allows the flow of the liquid only when a high-frequency, small-amplitude vibration is input, and reduces the input vibration. The flow restrictor 17 includes a rubber plate 18 as a movable plate,
It is composed of a fluctuation regulation plate 19 that regulates fluctuations of the rubber plate 18, and a communication hole 20 similar to the partition plate 10 is formed in the fluctuation regulation plate 19.
【００１６】ここで、流動規制具１７の取付構造につい
て詳述する。Here, the mounting structure of the flow restrictor 17 will be described in detail.
【００１７】図１に示すように、仕切板１０の互いに対
向する側壁１０ａ，１０ｂには夫々円柱状の突起２１が
水平方向に並んで複数個形成されており、これに対し、
流動規制具１７の変動規制板１９は弾性を有する金属に
よって長方形状に形成され、その両側縁部に前記突起２
１に対応する係止片２２が延設されている。この係止片
２２はＴ字状に形成されていて、上方に折曲された首部
２２ａの上端で頭部２２ｂが変動規制板１９の本体内側
に折曲され、さらに、この頭部２２ｂが波形状に成形さ
れてその上面に滑らかな凹形状が設けられている（以
下、この部位を凹状部２３と呼ぶ）。尚、凹状部２３の
底面は突起２１の設置高さよりも僅かに高くなるように
設定されている。As shown in FIG. 1, a plurality of columnar projections 21 are formed side by side in the horizontal direction on the side walls 10a and 10b of the partition plate 10 which face each other.
The fluctuation restricting plate 19 of the flow restricting tool 17 is formed of a metal having elasticity into a rectangular shape, and the projections 2 are formed on both side edges thereof.
The locking piece 22 corresponding to No. 1 is extended. The locking piece 22 is formed in a T shape, and the head 22b is bent inside the main body of the fluctuation regulating plate 19 at the upper end of the neck 22a bent upward, and the head 22b is further waved. The shape is formed and a smooth concave shape is provided on the upper surface (hereinafter, this portion is referred to as a concave portion 23). The bottom surface of the concave portion 23 is set to be slightly higher than the installation height of the protrusion 21.
【００１８】流動規制具１７を取り付ける場合には、変
動規制板１９を図４（Ａ）に示すように内部にゴム板１
８を収容した状態で仕切板１０の端部上面にセットし、
そのまま中心方向にスライドさせる。こうして変動規制
板１９をスライドさせると、係止片２２の頭部２２ｂが
仕切板１０の突起２１に弾性するが、変動規制板１９を
そのまま押し込むことにより、先端側の係止片２２が図
４（Ｂ），（Ｃ）に示すように順次突起２１を乗り越え
て最終的にすべての係止片２２の凹状部２３に突起２１
が一対一で対応するように嵌合係止される。When the flow restrictor 17 is attached, the fluctuation restricting plate 19 is provided inside the rubber plate 1 as shown in FIG. 4 (A).
Set 8 on the upper surface of the end of the partition plate 10,
Slide it toward the center as it is. When the fluctuation regulating plate 19 is slid in this manner, the head portion 22b of the locking piece 22 is elasticized to the protrusion 21 of the partition plate 10. However, by pushing the fluctuation regulating plate 19 as it is, the locking piece 22 on the tip side is moved to the position shown in FIG. As shown in (B) and (C), the projections 21 are sequentially overcome and finally the projections 21 are formed in the concave portions 23 of all the locking pieces 22.
Are fitted and locked in a one-to-one correspondence.
【００１９】こうして、仕切板１０に固定された変動規
制板１９は両側に複数設けられた係止片２２部分が突起
２１によって下方に押圧されるため、その全域がほぼ同
圧で仕切板１０に確実に密接することとなる。In this manner, since the fluctuation restricting plate 19 fixed to the partition plate 10 is pressed downward by the protrusions 21, the engaging pieces 22 provided on both sides of the fluctuation restricting plate 19 are almost entirely pressed to the partition plate 10. It will definitely be close.
【００２０】[0020]
【発明の効果】以上のように本発明は、仕切板の対向す
る側壁に円柱状の突起を夫々配設する一方で、流動規制
具の変動規制板を弾性を有する金属によって形成すると
共に、この変動規制板の両側縁部に上面が滑らかな凹形
状となった係止片を一体に形成し、変動規制板を仕切板
の側壁間にスライドさせて突起を係止片の凹状部に嵌合
係止させるようにしたため、取付作業が極めて容易にな
るうえ、変動規制板が係止片と突起との弾接によって仕
切板上に確実に密接するようになる。As described above, according to the present invention, the columnar projections are arranged on the opposite side walls of the partition plate, respectively, while the fluctuation regulating plate of the flow regulating device is formed of elastic metal. Locking pieces with a smooth upper surface are integrally formed on both side edges of the fluctuation regulating plate, and the fluctuation regulating plate is slid between the side walls of the partition plate to fit the protrusions into the concave portions of the locking pieces. Since the locking is performed, the mounting work becomes extremely easy, and the fluctuation regulating plate surely comes into close contact with the partition plate due to the elastic contact between the locking piece and the protrusion.
【図１】本発明の一実施例を示す斜視図。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】同実施例を示す断面図。FIG. 2 is a sectional view showing the same embodiment.
【図３】図２のＤ−Ｄ線に沿う断面図。FIG. 3 is a cross-sectional view taken along the line D-D in FIG.
【図４】同実施例を示す断面図。FIG. 4 is a sectional view showing the same embodiment.
７…液封入部、 １０…仕切板、 １０ａ，１０ｂ…側壁、 １６…連通孔、 １７…流動規制具、 １８…ゴム板（可動板）、 １９…変動規制板、 ２１…突起、 ２２…係止片、 ２３…凹状部。 7 ... Liquid encapsulation part, 10 ... Partition plate, 10a, 10b ... Side wall, 16 ... Communication hole, 17 ... Flow restricting tool, 18 ... Rubber plate (movable plate), 19 ... Fluctuation restricting plate, 21 ... Projection, 22 ... Engagement Stop, 23 ... Recessed part.
Claims (1)
の仕切板にこの二室を連通させる連通孔を設け、可動板
とこの可動板の変動を規制する変動規制板とから成る流
動規制具を前記仕切板にその連通孔に臨ませて取り付け
る取付構造において、前記仕切板の対向する側壁に円柱
状の突起を夫々配設する一方で、前記流動規制具の変動
規制板を弾性を有する金属によって形成すると共に、こ
の変動規制板の両側縁部に上面が滑らかな凹形状となっ
た係止片を一体に形成し、前記変動規制板を仕切板の側
壁間にスライドさせて突起を係止片の凹状部に嵌合係止
させることを特徴とする液体封入型防振装置の流動規制
具取付構造。1. A partition plate having a U-shaped cross section that defines two chambers in a liquid filling section is provided with a communication hole for communicating the two chambers, and a movable plate and a fluctuation regulation plate that regulates fluctuations of the movable plate are provided. In the mounting structure in which the flow restricting tool is attached to the partition plate so as to face the communication hole, the columnar protrusions are respectively arranged on the opposite side walls of the partition plate while the fluctuation restricting plate of the flow restrictor is provided. The variation regulating plate is formed of a metal having elasticity, and locking pieces having a smooth upper surface are integrally formed on both side edges of the variation regulating plate, and the variation regulating plate is slid between the side walls of the partition plate. A flow restrictor mounting structure for a liquid-filled type vibration damping device, characterized in that a projection is fitted and locked in a concave portion of a locking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1364193A JPH06229440A (en) | 1993-01-29 | 1993-01-29 | Flow regulating tool attaching structure of liquid sealed-type vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1364193A JPH06229440A (en) | 1993-01-29 | 1993-01-29 | Flow regulating tool attaching structure of liquid sealed-type vibration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06229440A true JPH06229440A (en) | 1994-08-16 |
Family
ID=11838866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1364193A Pending JPH06229440A (en) | 1993-01-29 | 1993-01-29 | Flow regulating tool attaching structure of liquid sealed-type vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06229440A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012002402A1 (en) * | 2010-06-29 | 2012-01-05 | 株式会社ブリヂストン | Vibration control device and method of manufacturing movable plate unit |
| JP2012013102A (en) * | 2010-06-29 | 2012-01-19 | Bridgestone Corp | Liquid-seal bush |
| JP2012041974A (en) * | 2010-08-18 | 2012-03-01 | Bridgestone Corp | Vibration control device |
| JP2012041975A (en) * | 2010-08-18 | 2012-03-01 | Bridgestone Corp | Vibration control device |
| JP2012215205A (en) * | 2011-03-31 | 2012-11-08 | Bridgestone Corp | Vibration control device |
| JP2012215204A (en) * | 2011-03-31 | 2012-11-08 | Bridgestone Corp | Method of manufacturing movable plate unit |
-
1993
- 1993-01-29 JP JP1364193A patent/JPH06229440A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012002402A1 (en) * | 2010-06-29 | 2012-01-05 | 株式会社ブリヂストン | Vibration control device and method of manufacturing movable plate unit |
| JP2012013102A (en) * | 2010-06-29 | 2012-01-19 | Bridgestone Corp | Liquid-seal bush |
| JP2012041974A (en) * | 2010-08-18 | 2012-03-01 | Bridgestone Corp | Vibration control device |
| JP2012041975A (en) * | 2010-08-18 | 2012-03-01 | Bridgestone Corp | Vibration control device |
| JP2012215205A (en) * | 2011-03-31 | 2012-11-08 | Bridgestone Corp | Vibration control device |
| JP2012215204A (en) * | 2011-03-31 | 2012-11-08 | Bridgestone Corp | Method of manufacturing movable plate unit |
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