JPS6040842A - Vibration-proof device - Google Patents
Vibration-proof deviceInfo
- Publication number
- JPS6040842A JPS6040842A JP14894583A JP14894583A JPS6040842A JP S6040842 A JPS6040842 A JP S6040842A JP 14894583 A JP14894583 A JP 14894583A JP 14894583 A JP14894583 A JP 14894583A JP S6040842 A JPS6040842 A JP S6040842A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- liquid chamber
- liquid
- partition plate
- cylindrical body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の利用分野］
本発明は振動源からの振動を減少させるための防振装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a vibration isolator for reducing vibrations from a vibration source.
［背景技術］
一般的に防振ゴムと呼ばれる防振装置は、−例として自
動車のエンジンマウントに用いられて自動車エンジンの
振動を吸収し車体へ伝達させないようになっている。[Background Art] Vibration isolating devices, generally called vibration isolating rubber, are used, for example, in engine mounts of automobiles to absorb vibrations from the automobile engine and prevent them from being transmitted to the vehicle body.
この防振装置として２個の振動減衰液室を設け、振動源
からの振動を一方の液室の縮小力として伝達し、この液
室の液体を制限通路を通して他の液室へ移動させる場合
の内部摩擦に基づく抵抗力によって振動を吸収する構成
が提案されている。Two vibration-damping liquid chambers are provided as this vibration isolator, and the vibration from the vibration source is transmitted as a contraction force to one of the liquid chambers, and when the liquid in this liquid chamber is moved to the other liquid chamber through the restriction passage. A configuration has been proposed in which vibration is absorbed by a resistance force based on internal friction.
ところがこの防振装置は、入力される振動が例えば５０
Ｈｚ以上の高周波である場合には、振幅が小さく、制限
通路が目づまり状態となって内圧が上昇゛しばね定数が
高くなる。この結果、振動の伝達率が上り、自動車の乗
り心地が悪くなる原因となる。However, with this vibration isolator, the input vibration is, for example, 50
In the case of a high frequency of Hz or more, the amplitude is small, the restriction passage becomes clogged, the internal pressure rises, and the spring constant becomes high. As a result, the transmission rate of vibration increases, causing a worsening of the ride comfort of the vehicle.
［発明゛の目的］
本発明は上記事実を考慮し、高周波振動をも適ジノに減
衰させることができ、広範囲の振動減衰が可能な防振装
置を得ることが目的である。[Object of the Invention] Taking the above-mentioned facts into account, the present invention aims to provide a vibration isolating device that is capable of appropriately attenuating even high-frequency vibrations and capable of damping vibrations over a wide range.
［発明の概要コ
本発明に係る防振装置は弾性材料の中空成形体より主と
して形成される吸振主体の中空室を液室に充当し、この
液室をその′内部に閉じ込めた液体の流動に対する制限
通路を介して相互分離し、この制限通路に生じる液体流
動の粘性抵抗に基づく減衰作用を吸振主体の主として内
部摩擦に基づく制振機能に併用して振動の緩衝に供する
防振装置であって、液室の中間部に配置された円筒体の
貫通孔で制限通路を構成し、周囲を固定された板材で両
液室を仕切ると共にこの板材の開口を円筒体の外周へ接
近させて板材の振動により高周波振動を吸収するように
なっている。[Summary of the Invention] The vibration isolator according to the present invention uses a hollow chamber mainly formed of a hollow molded body made of an elastic material as a vibration absorbing body as a liquid chamber, and uses this liquid chamber to prevent the flow of liquid confined inside the chamber. A vibration isolating device that is separated from each other via a restriction passage and uses a damping effect based on the viscous resistance of liquid flow generated in the restriction passage in combination with a vibration damping function mainly based on internal friction, which is the main vibration absorber, to buffer vibrations. A through-hole in the cylindrical body placed in the middle of the liquid chamber constitutes a restriction passage, and a plate material fixed around the periphery partitions both liquid chambers, and the opening of this plate material is brought close to the outer periphery of the cylindrical body. The vibration absorbs high frequency vibrations.
「発明の実施例］
第１図には本発明が適用された防振装置の断面図が示さ
れている。この防振装置はエンジンマウントとして用い
られて、底板１０には中央部へボルト１２が固着されて
図示しない車体への取付用となっている。Embodiments of the Invention FIG. 1 shows a cross-sectional view of a vibration isolator to which the present invention is applied. is fixed to the vehicle body (not shown).
この底板１０の外周部には円鏑形状の接続板１４の下端
部が屈曲してカシメ固着されており、さらに底板１０と
接続板１４との間には弾性体で形成されるダイアフラム
１６の周縁部が挟持されている。底板ｌＯの中央部とダ
イアフラム１６との間は空気室１８を構成しており、ダ
イアフラム１６か空気室１８の拡縮方向に変位可能とな
っている。底板１０には貫通孔１９を穿設して空気室１
８を外部と連通してもよい。The lower end of a circular-shaped connecting plate 14 is bent and caulked to the outer periphery of the bottom plate 10, and the periphery of a diaphragm 16 made of an elastic material is disposed between the bottom plate 10 and the connecting plate 14. The part is pinched. An air chamber 18 is formed between the center portion of the bottom plate 1O and the diaphragm 16, and the diaphragm 16 is movable in the expansion/contraction direction of the air chamber 18. A through hole 19 is bored in the bottom plate 10 to form an air chamber 1.
8 may be communicated with the outside.
接続板１４の上部には軸心が垂直とされた中空成形体で
あるゴムからなる吸振主体２０の下端部外層が加硫接着
されている。このゴムに科えて他の弾性材料を用いるこ
とも可能である。The lower end outer layer of a vibration absorbing main body 20 made of rubber and a hollow molded body whose axis is vertical is vulcanized and bonded to the upper part of the connecting plate 14. It is also possible to use other elastic materials in addition to this rubber.
吸振主体２０の頂部には頂板２２が固着されている。こ
の頂板２２の中央部にはボルト２４か固着されて図示し
ないエンジンの搭載用となっている。A top plate 22 is fixed to the top of the vibration absorbing main body 20. A bolt 24 is fixed to the center of the top plate 22 for mounting an engine (not shown).
吸振主体２０とダイアフラム１６とによって構成される
中空室は液室２６であり、この液室２６内へ水等の液体
が充填されている。A hollow chamber formed by the vibration absorbing main body 20 and the diaphragm 16 is a liquid chamber 26, and the liquid chamber 26 is filled with a liquid such as water.
液室２６内にはブラケフト２８が設けられている。この
ブラケフト２８は外周部が半径方向に突出され、ダイア
フラム１６と接続板１４との間へ挟持されて底板１０へ
固定されている。このブラケット２８の中間部には複数
の円孔３ｏが形成されて液室２６内の液体を自由に通過
可能としている。またこのブラケフト２８の軸心部には
円筒体３２が貫通している。A bracket lift 28 is provided within the liquid chamber 26 . This bracket shaft 28 has an outer peripheral portion projected in the radial direction, and is held between the diaphragm 16 and the connecting plate 14 and fixed to the bottom plate 10. A plurality of circular holes 3o are formed in the middle portion of the bracket 28 to allow the liquid in the liquid chamber 26 to freely pass therethrough. Further, a cylindrical body 32 passes through the axial center of the bracket shaft 28.
、この円筒体３２の軸心部には貫通孔３３が穿設されて
おり、液室２６内の液体を通過可能としている。この通
過時に液体はその粘性抵抗で減衰作用を生じ、振動が吸
収されるようになっている。A through hole 33 is bored in the axial center of this cylindrical body 32, allowing the liquid in the liquid chamber 26 to pass therethrough. During this passage, the liquid produces a damping effect due to its viscous resistance, and vibrations are absorbed.
第２図に詳細に示される如くこの円筒体３２から半径方
向に突出したつば部３２Ａは第１図に示される如くブラ
ケット２８の底面へ当接され、ブラケット２８を貫通し
た円筒体３２の先端部へワッシャ３４が圧入されている
。必要に応じてブラケフト２８と円筒体３２との間及び
ワッシャ３４と円筒体３２との間に溶接等の固着手段か
適用される。As shown in detail in FIG. 2, a collar portion 32A protruding radially from the cylindrical body 32 is brought into contact with the bottom surface of the bracket 28 as shown in FIG. A washer 34 is press-fitted therein. If necessary, fixing means such as welding is applied between the bracket shaft 28 and the cylindrical body 32 and between the washer 34 and the cylindrical body 32.
円筒体３２はブラケフト２８へ固着される端部の反対側
に拡径部３６が形成されている。この拡径部３６には第
２図に示される如く外周部に複数個の切欠３８が形成さ
れており、仕切板４０の軸心部に形成される円孔４２か
ら突出する突起４４と対応している。仕切板４０はその
周囲がブラケット２８とダイアフラム１６との間へ挟持
されて底板１０へ固定されている。円孔４２の突起４４
が円筒体３２の外周と接近しており、これによって仕切
板４０は液室２６を上液室２６Ａと下液室２６Ｂとに区
画している。The cylindrical body 32 has an enlarged diameter portion 36 formed on the opposite side of the end portion fixed to the bracket shaft 28 . As shown in FIG. 2, this enlarged diameter portion 36 has a plurality of notches 38 formed on its outer periphery, which correspond to protrusions 44 protruding from a circular hole 42 formed at the axial center of the partition plate 40. ing. The periphery of the partition plate 40 is held between the bracket 28 and the diaphragm 16 and is fixed to the bottom plate 10. Protrusion 44 of circular hole 42
is close to the outer periphery of the cylindrical body 32, and thereby the partition plate 40 divides the liquid chamber 26 into an upper liquid chamber 26A and a lower liquid chamber 26B.
仕切板４０はエンジンの振動が低周波で高振幅である場
合には変形しにくく、高周波で低振幅である場合には微
小振動し易くするためにその周縁部が第３図に示される
如く薄く形成されており、その材質はゴム、プラスチッ
ク等で形成されている。この仕切板４０の円孔４２、突
起４４と円筒体３２との間隔は目的とする吸収される高
周波の振幅量により調整されるが、一般的には０．２〜
１ｍｍが適当である。The partition plate 40 is not easily deformed when the engine vibration is low frequency and high amplitude, but is made to have a thin peripheral edge as shown in FIG. The material is rubber, plastic, etc. The distance between the circular hole 42 and projection 44 of this partition plate 40 and the cylindrical body 32 is adjusted depending on the amplitude of the targeted high frequency wave to be absorbed, but is generally 0.2~
1 mm is appropriate.
このように構成される木実施例の防振装置では、円筒体
３２と仕切板４０の組付時に第２図に示される如く円筒
体３２の切欠３８を仕切板４０の突起４４と対応させれ
ば、円筒体３２は円孔４２内へ挿入可能であり、挿入後
に所定角度（この実施例では約４５°）相対回転させる
ことにより円筒体３２が円孔４２から抜き出し不可能と
なる。従ってこの状態で円筒体３２及び仕切板４０を底
板１０等へ組付ければよい。In the wooden embodiment of the vibration isolator constructed as described above, when the cylindrical body 32 and the partition plate 40 are assembled, the notch 38 of the cylindrical body 32 is made to correspond to the protrusion 44 of the partition plate 40 as shown in FIG. For example, the cylindrical body 32 can be inserted into the circular hole 42, and by relatively rotating it by a predetermined angle (approximately 45° in this embodiment) after insertion, the cylindrical body 32 cannot be pulled out from the circular hole 42. Therefore, it is sufficient to assemble the cylindrical body 32 and the partition plate 40 to the bottom plate 10 etc. in this state.
底板１０はボルト１２を介して自動車の車体へ固着され
、頂板２２ヘポルト２４によって自動車エンジンを搭載
固着すれば組付が完了する。The bottom plate 10 is fixed to the body of the automobile via bolts 12, and the assembly is completed by mounting and fixing the automobile engine to the top plate 22 and the ports 24.
エンジンの取付に際しては、エンジンの自重がポルト２
４へ作用するので、上液室２６Ａの圧力が上昇する。こ
の圧力は円筒体３２の貫通孔３３を介して下液室２６Ｂ
へ伝達され、空気室１８が縮小する。When installing the engine, make sure that the engine's own weight is
4, the pressure in the upper liquid chamber 26A increases. This pressure is applied to the lower liquid chamber 26B through the through hole 33 of the cylindrical body 32.
, and the air chamber 18 contracts.
エンジンの運転時にはエンジンに生ずる振動が頂板２２
を介して伝達される。吸振主体２０Ｌ士内部摩擦に基づ
く制振機能によって振動を吸収することができる。振動
の周波数が低Ｉ／）場合シこ（±振幅が大きく、仕切板
４０は円筒体３２へ当接して移動が制限される。また上
液室２６Ａと下１夜室２６Ｂ内の液体は貫通孔３３を介
して流通し、ｌＡｔ体流動の粘性抵抗に基づく減衰作用
で防振効果力＜＋旬」二される。When the engine is running, vibrations generated in the engine are transmitted to the top plate 22.
transmitted via. Vibration can be absorbed by the vibration damping function based on internal friction of the 20L vibration absorbing body. When the frequency of vibration is low (I/), the amplitude is large, and the partition plate 40 comes into contact with the cylindrical body 32 and its movement is restricted.Furthermore, the liquid in the upper liquid chamber 26A and the lower liquid chamber 26B penetrates. It flows through the hole 33, and the damping effect based on the viscous resistance of the flow of the lAt body produces a vibration damping effect.
またエンジンの振動が例えば５０Ｈｚ以−にの高周波で
ある場合には、振幅が小さｌ、Ｎので貫通イし３３は目
づまり状態となる可能性かある。しめＳしこの場合には
仕切板４０が微小振動することにより液室の体積変化が
吸収され、これによって圧力」二Ａが抑制されて高周波
低振幅時にお（する低動Ｌｆね定数が得られる。Furthermore, if the vibration of the engine has a high frequency of, for example, 50 Hz or higher, the amplitude is small, so there is a possibility that the through hole 33 becomes clogged. In this case, the volume change in the liquid chamber is absorbed by the minute vibration of the partition plate 40, thereby suppressing the pressure 2A and obtaining a low dynamic Lf constant at high frequency and low amplitude. .
第４図には本発明の第２実施例が示されており、この実
施例では仕切板４０が鋼製とされており、その中間部の
一部にゴム４６等の弾刊二（本カー介在されている。従
ってこの仕切板４０におし）ても高周波振動時には仕切
板４０が容易側こ振動して液室内の圧力上Ａを抑制する
ことができる。FIG. 4 shows a second embodiment of the present invention. In this embodiment, the partition plate 40 is made of steel, and a part of the middle part of the partition plate 40 is made of rubber 46 etc. Therefore, even if the partition plate 40 is placed in the liquid chamber, the partition plate 40 easily vibrates sideways during high-frequency vibrations, thereby suppressing the pressure increase A within the liquid chamber.
第５図には本発明の第３実施例が示されている。この実
施例の構造は前記第１実施例と上下が逆にされた状態で
あり、底板４８と頂板５０との間には吸振主体２０が配
置されて液室２６を構成しており、円筒体３２、仕切板
４０の形状は前記第１実施例と同様である。従ってこの
実施例においても前記実施例と同様の効果を得ることが
できる。FIG. 5 shows a third embodiment of the invention. The structure of this embodiment is upside down from the first embodiment, and a vibration absorbing main body 20 is disposed between a bottom plate 48 and a top plate 50 to constitute a liquid chamber 26, and a cylindrical body 32. The shape of the partition plate 40 is the same as that of the first embodiment. Therefore, in this embodiment as well, the same effects as in the previous embodiment can be obtained.
［発明の効果］
以上説明した如く本発明では液室の中間部に配置した円
筒体の貫通孔で制限通路を形成し、周囲を固定された板
材の開口を円筒体の外周へ接近させる構成としたので、
低周波振動時には制限通路によって、高周波振動時には
板材の振動によって振動をそれぞれ吸収することができ
る。[Effects of the Invention] As explained above, in the present invention, a restriction passage is formed by a through hole of a cylindrical body disposed in the middle part of a liquid chamber, and the opening of a plate material whose periphery is fixed approaches the outer periphery of the cylindrical body. So,
At low frequency vibrations, vibrations can be absorbed by the restricted passage, and at high frequency vibrations, vibrations can be absorbed by the plate material.
第１図は本発明に係る防振装置の第１実施例を示す縦断
面図、第２図は円筒体３２と仕切板４０との対応関係を
示す分解斜視図、第３図は第１図の一部を示す拡大図、
第４図は本発明の第２実施例の一部を示す拡大図、第５
図は本発明の第３実施例を示す縦断面図である。
２０・・・吸振主体、２６・・・液室
２６Ａ・・上液室、 ２６Ｂ・・下液室３２・・・円筒
体、３３・・・貫通孔
４０・・・仕切板。
代理人 弁理士 中隔 淳
第１図
第２図
第３図
第４図
１つFIG. 1 is a vertical sectional view showing a first embodiment of a vibration isolator according to the present invention, FIG. 2 is an exploded perspective view showing the correspondence between a cylindrical body 32 and a partition plate 40, and FIG. 3 is a view similar to that shown in FIG. An enlarged view showing a part of
FIG. 4 is an enlarged view showing a part of the second embodiment of the present invention, and FIG.
The figure is a longitudinal sectional view showing a third embodiment of the present invention. 20... Vibration absorbing main body, 26... Liquid chamber 26A... Upper liquid chamber, 26B... Lower liquid chamber 32... Cylindrical body, 33... Through hole 40... Partition plate. Agent Patent Attorney Atsushi Sakata Figure 1 Figure 2 Figure 3 Figure 4 One
Claims (1)
材料の中空成形体から主としてなる吸振主体の中空室を
液室に充当し、この液室をその内部に閉じ込めた液体の
流動に対する制限通路を介して相互分離し、この制限通
路に生じる液体流動の粘性抵抗に基づく減衰作用を吸振
主体の主として内部摩擦に基づく制振機能に併用して振
動の緩衝に供する防振装置であって、前記制限通路は液
室の中間部に配置された円筒体の貫通孔によって構成し
、周囲を固定された両液室仕切用板材の開口を前記円筒
体の外周へ接近させ、この板材の振動により高周波振動
を吸収することを特徴とした防振装置。(1) A hollow chamber that is interposed between the vibration generating part and the vibration receiving part and mainly consists of a hollow molded body made of an elastic material is used as a liquid chamber, and the liquid chamber is confined within the liquid flow. This is a vibration isolating device that uses a damping effect based on the viscous resistance of liquid flow generated in the restricted passage in combination with a vibration damping function mainly based on internal friction, which is the main vibration absorber, to buffer vibrations. The restriction passage is constituted by a through hole in a cylindrical body disposed in the middle part of the liquid chamber, and the opening of a plate material for partitioning both liquid chambers whose periphery is fixed is brought close to the outer periphery of the cylindrical body, and A vibration isolator that is characterized by absorbing high frequency vibrations through vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14894583A JPS6040842A (en) | 1983-08-15 | 1983-08-15 | Vibration-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14894583A JPS6040842A (en) | 1983-08-15 | 1983-08-15 | Vibration-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6040842A true JPS6040842A (en) | 1985-03-04 |
Family
ID=15464167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14894583A Pending JPS6040842A (en) | 1983-08-15 | 1983-08-15 | Vibration-proof device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704470A (en) * | 2017-01-09 | 2017-05-24 | 重庆市锋盈汽车配件有限公司 | Self-adjusting automobile hydraulic mount |
-
1983
- 1983-08-15 JP JP14894583A patent/JPS6040842A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704470A (en) * | 2017-01-09 | 2017-05-24 | 重庆市锋盈汽车配件有限公司 | Self-adjusting automobile hydraulic mount |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2977796B2 (en) | Fluid-filled elastic vibration damping device | |
| JPH0221633Y2 (en) | ||
| JP3461913B2 (en) | Anti-vibration device | |
| EP0192782B1 (en) | Vibration isolating devices | |
| JP2776463B2 (en) | Anti-vibration device | |
| JPH0517415B2 (en) | ||
| EP0178652B1 (en) | Liquid-filled type vibration damping structure | |
| JPH0754131B2 (en) | Anti-vibration device | |
| JPH0543886B2 (en) | ||
| JPH0218453B2 (en) | ||
| JPS6018632A (en) | Vibration isolator | |
| JPH0379580B2 (en) | ||
| JPS6040842A (en) | Vibration-proof device | |
| JP3547494B2 (en) | Movable valve type fluid filled anti-vibration support device | |
| JPH0756314B2 (en) | Anti-vibration device | |
| JPH03288036A (en) | Fluid filled-type mount device | |
| JPH0434018B2 (en) | ||
| JPH0735841B2 (en) | Anti-vibration device | |
| JPH11247917A (en) | Engine mount | |
| JPS612936A (en) | Vibro-isolator | |
| JPS60132145A (en) | Vibration isolator | |
| JPS6018634A (en) | Vibration isolator | |
| JPH0329630Y2 (en) | ||
| JP3716869B2 (en) | Liquid filled mount | |
| JPH0227534B2 (en) | EKIFUNYUBOSHINSOCHI |