JP2000065125A - Vibration isolating apparatus - Google Patents

Vibration isolating apparatus

Info

Publication number
JP2000065125A
JP2000065125A JP23863598A JP23863598A JP2000065125A JP 2000065125 A JP2000065125 A JP 2000065125A JP 23863598 A JP23863598 A JP 23863598A JP 23863598 A JP23863598 A JP 23863598A JP 2000065125 A JP2000065125 A JP 2000065125A
Authority
JP
Japan
Prior art keywords
liquid chamber
diaphragm
vibration
liquid
elastic 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
Application number
JP23863598A
Other languages
Japanese (ja)
Inventor
Satoru Ueki
哲 植木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP23863598A priority Critical patent/JP2000065125A/en
Publication of JP2000065125A publication Critical patent/JP2000065125A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To prevent residence of air bubbles in liquid inside a liquid chamber and generation of abnormal noises. SOLUTION: This apparatus has liquid chambers 26 and 27 which are formed between a diaphragm 22 and an elastic body 16 with their inner walls, and liquid is sealed therein. The pressure receiving liquid chamber 26 and the sub- liquid chamber 27 are separated by a partitioning member 28 located therebetween. The pressure receiving liquid chamber 26 at least a part of which is constituted of the elastic body 16 and the sub-liquid chamber 27 at least a part of which is deformably formed with the diaphragm 22 are communicated with each other through a restricting passage 30. A plurality of ridges 42 in a linear protrusion form are extended radially on the upper surface on the diaphragm 22 in face-to-face relationship with an area on the partitioning member 28 where the opening 30B of the restricting passage 30 is arranged.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、振動発生部からの
振動を吸収する防振装置に関し、特に、車両に搭載され
るエンジンマウント、ブッシュ等に好適なものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration device for absorbing vibration from a vibration generating portion, and is particularly suitable for an engine mount, a bush, etc. mounted on a vehicle.

【0002】[0002]

【従来の技術】例えば、車両の振動発生部となるエンジ
ンと振動受け部となる車体との間には、エンジンマウン
トとしての防振装置が配設されていて、エンジンが発生
する振動をこの防振装置が吸収し、車体側に伝達される
のを阻止するような構造となっている。
2. Description of the Related Art For example, an anti-vibration device as an engine mount is provided between an engine serving as a vibration generating portion of a vehicle and a vehicle body serving as a vibration receiving portion. The structure is such that the vibration device absorbs and prevents transmission to the vehicle body side.

【0003】例えば、この防振装置の一例を図9に示
す。この図に示すように、この種の防振装置は、頂部1
10と筒部112とをゴムなどで形成される弾性体11
4で連結し、さらに、受圧液室120及び副液室122
が設けられると共に、これらの液室120、122間を
仕切る仕切部材126にオリフィスとなる制限通路12
4が設けられ、この制限通路124でこれらの液室12
0、122が互いに連通されている。
For example, FIG. 9 shows an example of this vibration isolator. As shown in this figure, this type of vibration isolator has a top 1
Elastic body 11 formed of rubber and the like with 10 and cylindrical portion 112
4 and the pressure receiving liquid chamber 120 and the auxiliary liquid chamber 122
Is provided, and a restricting passage 12 serving as an orifice is provided in a partition member 126 for partitioning between the liquid chambers 120 and 122.
4 is provided, and these liquid chambers 12
0 and 122 are communicated with each other.

【0004】そして、搭載されたエンジンが作動して振
動が発生した場合には、弾性体114の変形及び液室1
20、122を連通する制限通路124内の液体の液柱
共振等で振動を吸収し、振動の伝達を阻止していた。
When the mounted engine operates and generates vibration, the elastic body 114 is deformed and the liquid chamber 1 is deformed.
Vibration is absorbed by liquid column resonance or the like of the liquid in the restriction passage 124 that communicates with the passages 20 and 122, and the transmission of the vibration is prevented.

【0005】[0005]

【発明が解決しようとする課題】この従来の液体が内部
に封入された防振装置の製造に際しては、まず防振装置
の内部から注入口130を介して空気を一旦抜いて内部
を真空にし、その後、防振装置の液室120、122内
に注入口130から液体を注入するように流し込み、最
後に注入口130を封止するようにしていた。
When manufacturing the conventional vibration isolator in which the conventional liquid is sealed, first, air is temporarily evacuated from the interior of the vibration isolator through the inlet 130 to evacuate the interior. Thereafter, the liquid was poured into the liquid chambers 120 and 122 of the vibration isolator so as to be injected from the inlet 130, and finally the inlet 130 was sealed.

【0006】そして、防振装置の液室120、122内
に空気が残留した場合には空気が液中に気泡となって防
振特性を悪化させるおそれがある為、液体を注入する際
に仕切部材126等の構造体の周りを完全に液体で満た
す必要があった。
[0006] If air remains in the liquid chambers 120 and 122 of the vibration isolator, the air may become bubbles in the liquid and deteriorate the vibration isolating characteristics. It was necessary to completely fill the surroundings of the structure such as the member 126 with the liquid.

【0007】しかし、防振装置内から空気を抜く工程に
おいて、図10に示すように、仕切部材126に副液室
122の内壁となるダイヤフラム128が密着してダイ
ヤフラム128が制限通路124の副液室122側の開
口部124Aをシールしたり、もしくはダイヤフラム1
28が仕切部材126に密着する過程でダイヤフラム1
28の変形によりエアポケットPができて、空気が液室
120、122内に残留しまうおそれがあった。
However, in the step of bleeding air from inside the vibration isolator, as shown in FIG. 10, a diaphragm 128 serving as an inner wall of the auxiliary liquid chamber 122 comes into close contact with the partition member 126, and the diaphragm 128 The opening 124A on the chamber 122 side is sealed or the diaphragm 1
When the diaphragm 28 is in close contact with the partition member 126, the diaphragm 1
Due to the deformation of 28, an air pocket P may be formed, and air may remain in the liquid chambers 120 and 122.

【0008】一方、この従来の防振装置は液体が液室1
20、122内に封入されている為、比較的大きなもの
となっている。従って、図11に示すように、高スピー
ドで方向Xの振動の入力が防振装置に与えられた場合に
は、副液室122の液体が完全に受圧液室120及び仕
切部材126の制限通路124内に移動する前に、ダイ
ヤフラム128の一部が制限通路124の副液室122
側の開口部124Aに吸い込まれて、開口部124Aを
塞ぐようになる。そして、ダイヤフラム128の一部が
この開口部124Aに吸い込まれて開口部124Aをダ
イヤフラム128が塞ぐ際に、異音が発生することがあ
った。
On the other hand, in this conventional vibration isolator, the liquid
20 and 122, it is relatively large. Therefore, as shown in FIG. 11, when the vibration input in the direction X is given to the vibration isolator at a high speed, the liquid in the sub liquid chamber 122 is completely removed from the pressure receiving liquid chamber 120 and the restriction passage of the partition member 126. Before moving into the inside 124, a part of the diaphragm 128 is
It is sucked into the opening 124A on the side, and comes to close the opening 124A. Then, when a part of the diaphragm 128 is sucked into the opening 124A and the opening 128A is closed by the diaphragm 128, abnormal noise may be generated.

【0009】本発明は上記事実を考慮し、液室内の液中
に空気が気泡となって残らず且つ異音を発生させない防
振装置を提供することを目的とする。
The present invention has been made in view of the above circumstances, and has as its object to provide an anti-vibration device in which air does not remain as bubbles in liquid in a liquid chamber and noise does not occur.

【0010】[0010]

【課題を解決するための手段】請求項1に係る防振装置
は、振動発生部及び振動受け部の一方に連結される第1
の取付部材と、振動発生部及び振動受け部の他方に連結
される第2の取付部材と、これら取付部材間に配設され
て弾性変形し得る弾性体と、内壁の少なくとも一部が弾
性体により構成され且つ液体が封入される受圧液室と、
液体が封入される副液室と、受圧液室と副液室との間を
仕切り且つこれら受圧液室と副液室との間を連通する制
限通路が設けられた仕切部材と、副液室の内壁の少なく
とも一部を変形自在に形成して副液室を拡縮自在とする
と共に、仕切部材に密着した際にも流体を流通させ得る
流体流通部が設けられたダイヤフラムと、を有すること
を特徴とする。
According to a first aspect of the present invention, there is provided a vibration isolator which is connected to one of a vibration generator and a vibration receiver.
Mounting member, a second mounting member connected to the other of the vibration generating section and the vibration receiving section, an elastic body disposed between the mounting members and capable of being elastically deformed, and at least a part of the inner wall being an elastic body. And a pressure-receiving liquid chamber in which a liquid is sealed,
A sub-liquid chamber in which the liquid is sealed, a partition member that partitions between the pressure-receiving liquid chamber and the sub-liquid chamber, and is provided with a restriction passage communicating between the pressure-receiving liquid chamber and the sub-liquid chamber; A diaphragm provided with a fluid circulating portion capable of circulating a fluid even when the auxiliary liquid chamber is freely expandable and contractable by forming at least a part of an inner wall of the sub liquid chamber so as to be freely expandable and contractable. Features.

【0011】請求項2に係る防振装置は、請求項1の防
振装置において、流体流通部が、制限通路の開口部の少
なくとも近傍に対向するダイヤフラムの部分に設けられ
たことを特徴とする。
According to a second aspect of the present invention, there is provided the vibration isolator according to the first aspect, wherein the fluid circulating portion is provided at a portion of the diaphragm facing at least near the opening of the restriction passage. .

【0012】請求項1に係る防振装置の作用を以下に説
明する。
The operation of the vibration isolator according to the first aspect will be described below.

【0013】弾性体が一対の取付部材との間を連結し、
振動発生部に第1の取付部材あるいは第2の取付部材が
連結されている為、振動発生部側から振動が第1の取付
部材あるいは第2の取付部材に伝達されると、弾性体が
変形し、結果として弾性体の変形により振動が減衰し
て、第2の取付部材あるいは第1の取付部材に連結され
る振動受け部側に振動が伝達され難くなる。
An elastic body connects between the pair of mounting members,
Since the first mounting member or the second mounting member is connected to the vibration generating unit, the elastic body is deformed when the vibration is transmitted from the vibration generating unit to the first mounting member or the second mounting member. As a result, the vibration is attenuated by the deformation of the elastic body, and the vibration is less likely to be transmitted to the vibration receiving portion connected to the second mounting member or the first mounting member.

【0014】一方、内壁の少なくとも一部が弾性体によ
り構成される受圧液室及び副液室に液体がそれぞれ封入
され、これら受圧液室と副液室との間が仕切部材により
仕切られている。さらに、副液室の内壁の少なくとも一
部を変形自在に形成するダイヤフラムが、副液室を拡縮
自在としている。また、仕切部材が、これら受圧液室と
副液室との間を連通する制限通路を有し、ダイヤフラム
が、仕切部材に密着した際にも空気等の気体や液体であ
る流体を流通させ得る例えばリッジ或いは球状凸部等で
ある流体流通部を有している。
On the other hand, liquid is sealed in the pressure receiving liquid chamber and the auxiliary liquid chamber each having at least a part of an inner wall formed of an elastic body, and the pressure receiving liquid chamber and the auxiliary liquid chamber are partitioned by a partition member. . Further, a diaphragm that forms at least a part of the inner wall of the sub liquid chamber so as to be deformable allows the sub liquid chamber to expand and contract. In addition, the partition member has a restriction passage communicating between the pressure receiving liquid chamber and the sub liquid chamber, and the diaphragm can allow a gas or liquid such as air to flow even when the diaphragm is in close contact with the partition member. For example, it has a fluid flow portion such as a ridge or a spherical convex portion.

【0015】従って、弾性体の変形に伴って受圧液室が
拡縮し、これに合わせて制限通路を介して受圧液室に連
通される副液室がダイヤフラムの変形により拡縮するの
に伴って、受圧液室及び副液室の液体が制限通路を介し
て相互に流通し、制限通路内のオリフィス空間に生ずる
液柱共振に基づく減衰作用で防振効果を向上することが
できる。この結果、弾性体の変形だけでなく、液柱共振
により振動が低減されて、振動受け部側に振動がより一
層伝達され難くなり、防振装置の防振特性が向上する。
Accordingly, the pressure-receiving liquid chamber expands and contracts with the deformation of the elastic body, and the sub-liquid chamber communicated with the pressure-receiving liquid chamber via the restricting passage expands and contracts with the deformation of the diaphragm. The liquid in the pressure receiving liquid chamber and the liquid in the sub liquid chamber flow through each other via the restriction passage, and the vibration damping effect can be improved by the damping action based on the liquid column resonance generated in the orifice space in the restriction passage. As a result, not only the deformation of the elastic body, but also the vibration is reduced by the liquid column resonance, so that the vibration is more difficult to be transmitted to the vibration receiving portion side, and the vibration isolating characteristics of the vibration isolator are improved.

【0016】さらに、ダイヤフラムに流体流通部を設け
ることにより、制限通路の副液室側の開口部がダイヤフ
ラムにより覆われても、この流体流通部で制限通路の開
口部に対する副液室内の空気の流路が確保される構造と
した。この為、防振装置の製造に際して防振装置内から
空気を抜く工程において、仕切部材にダイヤフラムが密
着してダイヤフラムが制限通路の副液室側の開口部をシ
ールしたり、もしくはダイヤフラムが仕切部材に密着す
る過程でダイヤフラムの変形によりエアポケットができ
ても、流体流通部により形成される仕切部材とダイヤフ
ラムとの間の隙間により空気が流通される為、空気が液
室内に残留することがなくなった。この結果として、空
気が液室内の液中に気泡となって残って防振装置の防振
特性を悪化させるおそれがなくなった。
Further, by providing a fluid flow portion in the diaphragm, even if the opening of the restriction passage on the side of the sub-liquid chamber is covered by the diaphragm, the air in the sub-liquid chamber with respect to the opening of the restriction passage is covered by the fluid flow portion. The structure was such that a flow path was secured. For this reason, in the process of bleeding air from the inside of the vibration isolator at the time of manufacturing the vibration isolator, the diaphragm is in close contact with the partition member and the diaphragm seals the opening of the restriction passage on the side of the sub-liquid chamber, or the diaphragm is Even if air pockets are created due to the deformation of the diaphragm in the process of closely contacting the air, air flows through the gap between the diaphragm and the partition member formed by the fluid flow part, so that air does not remain in the liquid chamber. Was. As a result, there is no possibility that air remains as bubbles in the liquid in the liquid chamber and deteriorates the vibration-proof characteristics of the vibration-proof device.

【0017】他方、ダイヤフラムに流体流通部を設ける
ことにより、高スピードで振動の入力が防振装置に与え
られた場合でも、流体流通部に邪魔される為、副液室内
の液体が受圧液室及び制限通路内に移動する前に、ダイ
ヤフラムの一部が制限通路の副液室側の開口部に吸い込
まれて塞ぐようにならず、この開口部をダイヤフラムが
塞ぐ際に生じる異音が発生しなくなる。
On the other hand, if the diaphragm is provided with the fluid flow section, even if vibration is input to the vibration isolator at a high speed, the fluid flow section obstructs the fluid flow. Before moving into the restriction passage, a part of the diaphragm is not sucked into the opening on the sub-liquid chamber side of the restriction passage and becomes blocked, and an abnormal noise occurs when the diaphragm closes this opening. Disappears.

【0018】請求項2に係る防振装置の作用を以下に説
明する。
The operation of the vibration isolator according to claim 2 will be described below.

【0019】本請求項においても請求項1と同様な作用
を奏する。但し、本請求項では、流体流通部が制限通路
の開口部の少なくとも近傍に対向するダイヤフラムの部
分に設けられる構成をも有している。
The present invention has the same effect as the first embodiment. However, the present invention also has a configuration in which the fluid flow portion is provided at a portion of the diaphragm facing at least near the opening of the restriction passage.

【0020】従って、より確実に、空気が液室内に残留
しなくなると共に、制限通路の開口部をダイヤフラムが
塞ぐ際に生じる異音が発生しなくなる。
Therefore, the air does not remain in the liquid chamber more reliably, and the noise generated when the diaphragm closes the opening of the restriction passage does not occur.

【0021】[0021]

【発明の実施の形態】本発明の第1の実施の形態に係る
防振装置を図1から図4に示し、これらの図に基づき本
実施の形態を説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vibration isolator according to a first embodiment of the present invention is shown in FIGS. 1 to 4, and the present embodiment will be described with reference to these drawings.

【0022】本実施の形態を表す図1に示すように、こ
の防振装置10の下部側を形成する底板金具12の下部
には、車体(図示せず)にこの防振装置10を図示しな
いナットの螺合により連結して固着する為のボルト13
が突出している。さらに、この底板金具12の周囲には
立壁12Aを介してつば部12Bが形成されており、つ
ば部12Bの上端部には支持筒金具14が取付けられて
いる。この支持筒金具14は円板状のフランジ部14A
の外周端部がつば部12Bとかしめ固着されている。従
って、これら底板金具12及び支持筒金具14が第1の
取付部材とされる。
As shown in FIG. 1 showing the present embodiment, the vibration isolator 10 is not shown on a vehicle body (not shown) below the bottom metal fitting 12 forming the lower side of the vibration isolator 10. Bolt 13 for connecting and fixing by screwing nuts
Is protruding. Further, a brim portion 12B is formed around the bottom plate metal fitting 12 via a vertical wall 12A, and a supporting cylindrical metal fitting 14 is attached to an upper end of the brim portion 12B. The support tube fitting 14 has a disk-shaped flange portion 14A.
Is crimped and fixed to the collar portion 12B. Therefore, the bottom metal fitting 12 and the support cylindrical metal fitting 14 are used as the first mounting member.

【0023】また、この支持筒金具14は、フランジ部
14Aの内周部から直角に筒部14Bが立設されてお
り、この筒部14Bの上端部からはテーパ状に広がる支
持筒部14Cが連続されている。この支持筒部14Cの
外周側には、リング状であって、図上、左右方向に伸び
る突部14Dが形成されている。
The support tube 14 has a tube portion 14B erected at a right angle from the inner peripheral portion of the flange portion 14A, and a support tube portion 14C expanding in a tapered shape from the upper end of the tube portion 14B. It has been continuous. On the outer peripheral side of the support cylindrical portion 14C, a ring-shaped protrusion 14D extending in the left-right direction in the figure is formed.

【0024】そして、支持筒金具14の上部には、円板
状の平面部18Aと、平面部18Aの周囲を覆うように
筒状に形成される立壁18Bと、この立壁18Bを介し
て平面部18Aに連続して形成されるフランジ部18C
とを有した頂板金具18が位置している。
A disk-shaped flat portion 18A, an upright wall 18B formed in a cylindrical shape so as to cover the periphery of the flat portion 18A, and a flat portion 18 Flange 18C formed continuously with 18A
And a top plate fitting 18 having the following.

【0025】また、この頂板金具18の直下にコップ状
に形成された連結材50が位置しており、連結材50の
上端側が立壁18Bと溶接等により接合され、頂板金具
18と連結材50が一体とされている。さらに、この頂
板金具18の中央部から突出されるボルト20はエンジ
ンへの連結用として用いられることとなり、図示しない
ナットの螺合によりエンジンが固定される。
A cup-shaped connecting member 50 is located immediately below the top plate 18, and the upper end of the connecting member 50 is joined to the upright wall 18 B by welding or the like, and the top plate 18 and the connecting member 50 are joined together. It is one. Further, bolts 20 protruding from the center of the top plate 18 are used for connection to the engine, and the engine is fixed by screwing nuts (not shown).

【0026】支持筒部14Cの内周面には、円筒形状を
したゴム製の弾性体16の外周面が加硫接着されてお
り、この弾性体16の内周面は、連結材50及び頂板金
具18のフランジ部18Cに加硫接着されていて、弾性
体16はフランジ部18Cの上面側をも覆っている。従
って、弾性体16は、頂板金具18及び連結材50と底
板金具12との間に、介在されて取り付けられることと
なり、これら一体となった連結材50及び頂板金具18
が第2の取付部材となる。
An outer peripheral surface of a rubber-made elastic body 16 having a cylindrical shape is vulcanized and bonded to an inner peripheral surface of the support cylindrical portion 14C. The inner peripheral surface of the elastic body 16 is formed by a connecting member 50 and a top plate. The elastic body 16 is also vulcanized and bonded to the flange portion 18C of the metal fitting 18, and also covers the upper surface side of the flange portion 18C. Therefore, the elastic body 16 is interposed and attached between the top plate 18 and the connecting member 50 and the bottom plate 12, and the integrated connecting member 50 and the top plate 18 are integrated.
Is the second mounting member.

【0027】一方、これら頂板金具18と支持筒金具1
4との間には、リング状をし且つ下部側が突部14Dに
かしめられて支持筒金具14に固着されて取り付けられ
るストッパ部材54が位置しており、頂板金具18の立
壁18Bに対応した開口部56が形成された上端部54
Aが、頂板金具18のフランジ部18Cと対向するよう
に屈曲されている。
On the other hand, the top plate fitting 18 and the support cylinder fitting 1
A stopper member 54, which is formed in a ring shape and has its lower side crimped to the protrusion 14D and is fixed to and attached to the support tubular fitting 14, is located between the stopper member 54 and the opening corresponding to the vertical wall 18B of the top plate fitting 18. Upper end portion 54 on which portion 56 is formed
A is bent so as to face the flange portion 18C of the top metal fitting 18.

【0028】すなわち、ストッパ部材54が、底板金具
12と一体となる支持筒金具14の突部14Dに固着さ
れて、支持筒金具14、頂板金具18及び連結材50の
外周側に位置している。
That is, the stopper member 54 is fixed to the projection 14D of the support tube 14 integral with the bottom plate 12, and is located on the outer peripheral side of the support tube 14, the top plate 18, and the connecting member 50. .

【0029】この為、エンジン側から大振幅の振動が伝
達された場合は、ストッパ部材54の上端部54Aが、
弾性体16を介して頂板金具18のフランジ部18Cに
当接して、ストッパ部材54の必要以上の上側への変位
が防止され、支持筒金具14と頂板金具18及び連結材
50との間の相互間の変位量が規制される。そして、こ
の際の衝撃をフランジ部18Cの上側に位置する弾性体
16が吸収する。
For this reason, when vibration of a large amplitude is transmitted from the engine side, the upper end 54A of the stopper member 54
The stopper member 54 is prevented from being unnecessarily upwardly displaced by contacting the flange portion 18 </ b> C of the top plate fitting 18 via the elastic body 16, and the mutual movement between the support tubular fitting 14 and the top plate fitting 18 and the connecting member 50 is prevented. The amount of displacement between them is regulated. Then, the impact at this time is absorbed by the elastic body 16 located above the flange portion 18C.

【0030】他方、立壁12Aと共にフランジ部14A
へかしめ固着されるもう一方の薄肉の弾性材料であるゴ
ム製のダイヤフラム22と、弾性体16との間には、こ
れらの部材の内壁面で形成された液室26、27が設け
られていて、例えば水、オイル等の液体が封入されてい
る。そして、これら液室26、27内にはセラミック
ス、合成樹脂或いは鋳鉄等の材料で形成された仕切部材
28が配置されていて、液室を受圧液室26と副液室2
7とに二分して区画している。
On the other hand, the flange 14A together with the standing wall 12A
Liquid chambers 26 and 27 formed by the inner wall surfaces of these members are provided between the elastic member 16 and the rubber diaphragm 22 which is another thin elastic material to be crimped and fixed. For example, a liquid such as water or oil is sealed. A partition member 28 made of a material such as ceramics, synthetic resin, or cast iron is disposed in the liquid chambers 26 and 27.
7 and divided into two.

【0031】さらに、この仕切部材28の外周面となる
外周端部28Aの内側には、外周端部28Aに沿いほぼ
一周にわたって溝28Bが形成され、弾性体16の薄肉
部分で仕切部材28の外周端部28Aが覆われること
で、この溝28Bの開放端が閉鎖されてリング状の空間
である制限通路30が形成される。
Further, a groove 28B is formed in the outer peripheral end portion 28A, which is the outer peripheral surface of the partition member 28, substantially over the entire circumference along the outer peripheral end portion 28A. When the end 28A is covered, the open end of the groove 28B is closed to form a restriction passage 30 which is a ring-shaped space.

【0032】この制限通路30の一端部には、受圧液室
26と制限通路30内とを連通する凹部である開口部3
0Aが設けられ、他端部には、副液室27と制限通路3
0内とを連通する小孔である開口部30Bが設けられて
いる。従って、これら開口部30A、30Bを含む制限
通路30が、内壁の少なくとも一部を弾性体16で構成
される受圧液室26と、内壁の少なくとも一部をダイヤ
フラム22で変形自在に形成した副液室27との間を連
通することとなる。
At one end of the restriction passage 30, an opening 3 is formed as a recess communicating the pressure receiving liquid chamber 26 and the inside of the restriction passage 30.
0A is provided, and the sub-liquid chamber 27 and the restriction passage 3 are provided at the other end.
An opening 30B, which is a small hole communicating with the inside of 0, is provided. Therefore, the restriction passage 30 including the openings 30A and 30B is composed of a pressure-receiving liquid chamber 26 in which at least a part of the inner wall is formed of the elastic body 16 and a sub-liquid in which at least a part of the inner wall is freely deformable by the diaphragm 22. The communication with the chamber 27 is established.

【0033】尚、外周端部28Aの下部は外側に突出し
ており、フランジ部14Aの底面へ弾性体16を介して
当接されると共に、つば部12B、ダイヤフラム22と
共にフランジ部14Aへかしめ固着されている。さら
に、ダイヤフラム22と底板金具12との間は空気室3
5とされてダイヤフラム22の変形を可能としている。
そして、底板金具12には、回り止めとなるピン37が
植え込まれている。
The lower portion of the outer peripheral end portion 28A protrudes outward, and is brought into contact with the bottom surface of the flange portion 14A via the elastic body 16, and is caulked and fixed to the flange portion 14A together with the flange portion 12B and the diaphragm 22. ing. Further, an air chamber 3 is provided between the diaphragm 22 and the bottom plate 12.
5, which allows the diaphragm 22 to be deformed.
A pin 37 serving as a detent is implanted in the bottom metal fitting 12.

【0034】図1及び図2に示すように、制限通路30
の開口部30Bが配置された仕切部材28の部分に対向
するダイヤフラム22の上面側部分には、ダイヤフラム
22の中心と同軸状の位置から放射状に延びるそれぞれ
線状の凸部とされる流体流通部である複数のリッジ42
が、設けられている。つまり、制限通路30の副液室2
7側の開口部30Bの少なくとも近傍の仕切部材28の
部分に対向するダイヤフラム22の部分に、このリッジ
42が設けられて、開口部30Bに空気等の気体や液体
である流体を流通させる流体流通部を構成している。
As shown in FIG. 1 and FIG.
In the upper surface side portion of the diaphragm 22 facing the portion of the partition member 28 in which the opening 30B is disposed, a fluid flow portion that is a linear convex portion extending radially from a position coaxial with the center of the diaphragm 22 Ridges 42
Are provided. That is, the auxiliary liquid chamber 2 of the restriction passage 30
The ridge 42 is provided on a portion of the diaphragm 22 facing at least a portion of the partition member 28 near the opening 30B on the seventh side, and a fluid such as air or a liquid such as air flows through the opening 30B. Unit.

【0035】次に本実施の形態に係る防振装置10の組
立を説明する。
Next, the assembly of the vibration isolator 10 according to this embodiment will be described.

【0036】まず、頂板金具18と連結材50とを溶接
して一体化し、図示しない金型内で、頂板金具18及び
連結材50と支持筒金具14との間に、弾性体16を加
硫接着する。この後、ストッパ部材54を図1上、上方
から頂板金具18の立壁18Bに挿入して、ストッパ部
材54の下部側と突部14Dとの間をかしめて固着す
る。
First, the top plate 18 and the connecting member 50 are welded and integrated, and the elastic body 16 is vulcanized between the top plate 18 and the connecting member 50 and the supporting tube 14 in a mold (not shown). Glue. Thereafter, the stopper member 54 is inserted into the upright wall 18B of the top metal plate 18 from above in FIG. 1, and the lower portion of the stopper member 54 and the projection 14D are caulked and fixed.

【0037】そして、これとは別にリッジ42を有した
ダイヤフラム22及び仕切部材28を形成し、これらリ
ッジ42が設けられた状態のダイヤフラム22及び仕切
部材28を支持筒金具14内に挿入し、底板金具12と
共にダイヤフラム22、仕切部材28を支持筒金具14
へかしめて固着する。
Then, the diaphragm 22 and the partition member 28 having the ridge 42 are formed separately, and the diaphragm 22 and the partition member 28 provided with the ridge 42 are inserted into the support cylinder 14 to form the bottom plate. The diaphragm 22 and the partition member 28 are attached together with the metal fitting 12 to the supporting cylindrical metal fitting 14.
Crimp and fix.

【0038】さらに、図3に示すように、防振装置10
の受圧液室26に対応する部分に形成された注入口32
に注入パイプ34を挿入し、まず防振装置10の内部か
ら注入パイプ34で吸引して空気を一旦抜いて内部を真
空にし、その後、受圧液室26、制限通路30及び副液
室27内に注入パイプ34で液体を注入するように流し
込み、最後に注入口32を図1に示すリベット36で封
止するようにして、防振装置10の組立が完了する。尚
この際、ダイヤフラム22の表面と制限通路30の副液
室27側の開口部30Bとの間の距離L(図1に示す)
を少なくとも5mm以上確保しておくことにする。
Further, as shown in FIG.
Inlet 32 formed in a portion corresponding to the pressure receiving liquid chamber 26 of FIG.
The suction pipe 34 is first inserted into the anti-vibration device 10, the air is temporarily drawn out by the suction pipe 34 from the inside of the vibration isolator 10, and the inside is evacuated once. Then, the pressure receiving liquid chamber 26, the restriction passage 30 and the auxiliary liquid chamber 27 The liquid is poured into the injection pipe 34 so as to be injected, and finally the injection port 32 is sealed with the rivet 36 shown in FIG. At this time, a distance L (shown in FIG. 1) between the surface of the diaphragm 22 and the opening 30B of the restriction passage 30 on the side of the sub-liquid chamber 27.
At least 5 mm or more.

【0039】そして、このようにして完成された防振装
置10の頂板金具18がボルト20を介してエンジン側
に固定されつつ連結され、また、底板金具12がボルト
13を介して自動車の車体側に固定されつつ連結され
る。この際、車両内への装着に伴って頂板金具18がエ
ンジンの荷重を受けると、弾性体16が圧縮変形され、
頂板金具18が図1の状態よりも下方へ移動して、頂板
金具18のフランジ部18Cが、ストッパ部材54の上
端部54Aから所定寸法離間する。
The top plate 18 of the vibration isolator 10 thus completed is connected to the engine via bolts 20 while being fixed to the engine, and the bottom plate 12 is connected to the vehicle body via bolts 13. It is connected while being fixed to. At this time, when the top plate 18 receives the load of the engine along with the mounting in the vehicle, the elastic body 16 is compressed and deformed,
The top plate 18 moves downward from the state shown in FIG. 1, and the flange portion 18C of the top plate 18 is separated from the upper end 54A of the stopper member 54 by a predetermined distance.

【0040】次に本実施の形態に係る防振装置10の作
用を説明する。
Next, the operation of the vibration isolator 10 according to the present embodiment will be described.

【0041】頂板金具18に搭載されるエンジンが作動
すると、エンジンの振動が頂板金具18及び連結材50
を介して弾性体16に伝達される。弾性体16は吸振主
体として作用し、弾性体16の内部摩擦に基づく制振機
能によって振動を吸収し、車体側に振動が伝達され難く
なる。
When the engine mounted on the top plate 18 is operated, the vibration of the engine is generated by the top plate 18 and the connecting member 50.
Is transmitted to the elastic body 16 through The elastic body 16 acts as a vibration absorber, absorbs vibration by a vibration damping function based on internal friction of the elastic body 16, and makes it difficult for the vibration to be transmitted to the vehicle body.

【0042】一方、内壁の少なくとも一部が弾性体16
により構成される受圧液室26及び副液室27に液体が
それぞれ封入され、これら受圧液室26と副液室27と
の間が仕切部材28により仕切られている。さらに、副
液室27の内壁の少なくとも一部を変形自在に形成する
ダイヤフラム22が、副液室27を拡縮自在としてい
る。また、仕切部材28が、これら受圧液室26と副液
室27との間を連通する制限通路30を有し、ダイヤフ
ラム22が、仕切部材28に当接した際にも空気等の気
体や液体である流体を流通させ得るリッジ42を有して
いる。
On the other hand, at least a part of the inner wall is
The liquid is sealed in the pressure receiving liquid chamber 26 and the sub liquid chamber 27, respectively, and a partition member 28 separates the pressure receiving liquid chamber 26 and the sub liquid chamber 27 from each other. Further, the diaphragm 22 which forms at least a part of the inner wall of the sub liquid chamber 27 so as to be deformable makes the sub liquid chamber 27 expandable and contractable. Further, the partition member 28 has a restriction passage 30 communicating between the pressure-receiving liquid chamber 26 and the sub-liquid chamber 27. Even when the diaphragm 22 comes into contact with the partition member 28, a gas or liquid such as air Has a ridge 42 through which a fluid can flow.

【0043】従って、弾性体16の変形に伴って受圧液
室26が拡縮し、これに合わせて制限通路30を介して
受圧液室26に連通される副液室27がダイヤフラム2
2の変形により拡縮するのに伴って、受圧液室26及び
副液室27の液体が制限通路30を介して相互に流通
し、制限通路30内のオリフィス空間に生ずる液柱共振
に基づく減衰作用で防振効果を向上することができる。
この結果、弾性体16の変形だけでなく、液柱共振によ
り振動が低減されて、車体側に振動がより一層伝達され
難くなり、防振装置10の防振特性が向上する。
Accordingly, the pressure receiving liquid chamber 26 expands and contracts with the deformation of the elastic body 16, and the auxiliary liquid chamber 27 communicated with the pressure receiving liquid chamber 26 via the restriction passage 30 in accordance with the expansion and contraction.
The liquid in the pressure receiving liquid chamber 26 and the liquid in the auxiliary liquid chamber 27 flow through the restricting passage 30 mutually with the expansion and contraction due to the deformation of 2, and the damping action based on the liquid column resonance generated in the orifice space in the restricting passage 30. With this, the anti-vibration effect can be improved.
As a result, not only the deformation of the elastic body 16 but also the vibration is reduced by the liquid column resonance, so that the vibration is more difficult to be transmitted to the vehicle body side, and the vibration isolating characteristics of the vibration isolator 10 are improved.

【0044】さらに、ダイヤフラム22に流体流通部で
あるリッジ42を設けることにより、制限通路30の副
液室27側の開口部30Bがダイヤフラム22により覆
われても、このリッジ42が仕切部材28に当接するこ
とで、制限通路30の開口部30Bに対する副液室27
内の気体の流路が確保される構造とした。
Further, by providing the diaphragm 22 with the ridge 42 which is a fluid flow portion, even if the opening 30B of the restriction passage 30 on the side of the sub-liquid chamber 27 is covered by the diaphragm 22, the ridge 42 remains on the partition member 28. By contact, the auxiliary liquid chamber 27 with respect to the opening 30B of the restriction passage 30
The structure was such that the gas flow path in the inside was secured.

【0045】この為、防振装置10の製造に際して防振
装置10内から空気を抜く工程において、図3に示すよ
うに仕切部材28にダイヤフラム22が密着してダイヤ
フラム22が制限通路30の副液室27側の開口部30
Bをシールしたり、もしくはダイヤフラム22が仕切部
材28に密着する過程でダイヤフラム22の変形により
エアポケットができても、リッジ42により形成される
仕切部材28とダイヤフラム22との間の隙間により空
気が流通される為、空気が液室26、27内に残留する
ことがなくなった。この結果として、空気が液室26、
27内の液中に気泡となって残ってこの防振装置10の
防振特性を悪化させるおそれがなくなる。
For this reason, in the process of bleeding air from the inside of the vibration isolator 10 at the time of manufacturing the vibration isolator 10, the diaphragm 22 is brought into close contact with the partition member 28 as shown in FIG. Opening 30 on chamber 27 side
Even if air is formed due to the deformation of the diaphragm 22 in the process of sealing the B or the diaphragm 22 is in close contact with the partition member 28, air is generated by the gap between the partition member 28 and the diaphragm 22 formed by the ridge 42. Since the air is circulated, air does not remain in the liquid chambers 26 and 27. As a result, air is generated in the liquid chamber 26,
This eliminates the possibility that bubbles remain in the liquid in the liquid 27 and deteriorate the vibration-proof characteristics of the vibration-proof device 10.

【0046】他方、ダイヤフラム22に流体流通部であ
るリッジ42を設けることにより、高スピードで図4に
示す方向Xの振動の入力が防振装置10に与えられた場
合でも、リッジ42に邪魔されるため、副液室27内の
液体が受圧液室26及び制限通路30内に移動する前
に、ダイヤフラム22の一部が制限通路30の副液室2
7側の開口部30Bに吸い込まれて塞ぐようにならず、
この開口部30Bをダイヤフラム22が塞ぐ際に生じる
異音が発生しなくなる。
On the other hand, by providing the diaphragm 22 with the ridge 42, which is a fluid flow portion, even if the vibration input in the direction X shown in FIG. Therefore, before the liquid in the sub liquid chamber 27 moves into the pressure receiving liquid chamber 26 and the restriction passage 30, a part of the diaphragm 22 is
It is not sucked into the opening 30B on the 7 side and closed.
The noise generated when the diaphragm 22 blocks the opening 30B is not generated.

【0047】また、本実施の形態では、流体流通部であ
るリッジ42が、制限通路30の開口部30Bの少なく
とも近傍の仕切部材28の部分に対向するダイヤフラム
22の部分に設けられているので、より確実に、空気が
液室26、27内に残留しなくなると共に制限通路30
の開口部30Bをダイヤフラム22が塞ぐ際に生じる異
音が発生しなくなる。
In the present embodiment, the ridge 42, which is a fluid flow portion, is provided at the portion of the diaphragm 22 opposed to the portion of the partition member 28 at least near the opening 30B of the restriction passage 30. More reliably, no air remains in the liquid chambers 26 and 27 and the restriction passage 30
No abnormal noise is generated when the diaphragm 22 closes the opening 30B.

【0048】次に、本発明の第2の実施の形態に係る防
振装置を図5から図8に示し、これらの図に基づき本実
施の形態を説明する。尚、第1の実施の形態で説明した
部材と同一の部材には同一の符号を付し、重複した説明
を省略する。
Next, a vibration isolator according to a second embodiment of the present invention is shown in FIGS. 5 to 8, and this embodiment will be described with reference to these drawings. The same members as those described in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

【0049】図5及び図6に示すように、本実施の形態
の防振装置10のダイヤフラム22にはリッジ42が無
いものの、この替わりに制限通路30の開口部30Bが
配置された位置の少なくとも近傍を含む仕切部材28の
部分に対向するダイヤフラム22の上面側部分に、半球
状の凸部である流体流通部である複数の球状凸部44
が、設けられている。
As shown in FIGS. 5 and 6, the diaphragm 22 of the vibration isolator 10 of the present embodiment does not have the ridge 42, but instead has at least the position where the opening 30B of the restriction passage 30 is arranged. A plurality of hemispherical convex portions 44, which are fluid flow portions, are provided on the upper surface side portion of the diaphragm 22 facing the portion of the partition member 28 including the vicinity.
Are provided.

【0050】従って、防振装置10の製造に際して、図
7に示すように防振装置10の内部から注入パイプ34
で吸引して空気を一旦抜いて内部を真空にしたときや、
高スピードで図8に示す方向Xの振動の入力が防振装置
10に与えられたときに、球状凸部44が仕切部材28
に当接することで仕切部材28とダイヤフラム22とが
密着するように接した場合でも、複数の球状凸部44が
仕切部材28とダイヤフラム22との間に隙間を形成し
て、空気等の気体や液体である流体を流通させ得るよう
になる。
Therefore, when the vibration isolator 10 is manufactured, as shown in FIG.
When the inside is evacuated once and the inside is evacuated,
When a vibration input in the direction X shown in FIG.
Even when the partition member 28 and the diaphragm 22 come into close contact with each other, the plurality of spherical projections 44 form a gap between the partition member 28 and the diaphragm 22 to form a gas such as air or the like. A fluid that is a liquid can be circulated.

【0051】尚、上記実施の形態において、振動受け部
となる車体に第1の取付部材となる底板金具12側を連
結し、振動発生部となるエンジンに第2の取付部材とな
る頂板金具18側を連結するような構成としたがこの逆
の構成としても良く、また、上記実施の形態において、
液体封入式の防振装置を用いて説明をしたが、液体封入
式以外の防振装置に適用できることはいうまでもない。
In the above-described embodiment, the bottom plate fitting 12 serving as the first mounting member is connected to the vehicle body serving as the vibration receiving portion, and the top plate fitting 18 serving as the second mounting member is connected to the engine serving as the vibration generating portion. Although the configuration is such that the sides are connected, the configuration may be reversed, and in the above embodiment,
Although the description has been made using the liquid-filled type vibration damping device, it is needless to say that the invention can be applied to a vibration-proofing device other than the liquid filling type.

【0052】他方、実施の形態において、車両に搭載さ
れるエンジンの防振を目的としたが、本発明の防振装置
は例えば車両のボディマウント等、あるいは車両以外の
他の用途にも用いられることはいうまでもなく、また、
支持筒金具、頂板金具、連結材及び弾性体等の形状、寸
法なども実施の形態のものに限定されるものではない。
On the other hand, in the embodiment, the purpose is to dampen an engine mounted on a vehicle. However, the anti-vibration device of the present invention is used for, for example, a body mount of a vehicle or other uses other than the vehicle. Needless to say,
The shapes, dimensions, and the like of the support tube fitting, the top plate fitting, the connecting member, the elastic body, and the like are not limited to those of the embodiment.

【0053】[0053]

【発明の効果】本発明の防振装置は、以上のように説明
した構成とした結果、液室内の液中に空気が気泡となっ
て残らず且つ異音を発生させないという優れた効果を有
する。
As described above, the vibration damping device of the present invention has an excellent effect that air does not remain as bubbles in the liquid in the liquid chamber and no abnormal noise is generated. .

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る防振装置の第1の実施の形態を示
す断面図である。
FIG. 1 is a sectional view showing a first embodiment of a vibration isolator according to the present invention.

【図2】本発明に係る防振装置の第1の実施の形態のダ
イヤフラムを示す斜視図である。
FIG. 2 is a perspective view showing a diaphragm of the first embodiment of the vibration isolator according to the present invention.

【図3】本発明に係る防振装置の第1の実施の形態を示
す断面図であって、防振装置内から空気を吸引した状態
を示す図である。
FIG. 3 is a cross-sectional view showing the first embodiment of the vibration isolator according to the present invention, showing a state where air is sucked from the inside of the vibration isolator.

【図4】本発明に係る防振装置の第1の実施の形態を示
す断面図であって、高スピードで振動の入力が与えられ
た状態を示す図である。
FIG. 4 is a cross-sectional view showing the first embodiment of the vibration isolator according to the present invention, showing a state where a vibration input is given at a high speed.

【図5】本発明に係る防振装置の第2の実施の形態を示
す断面図である。
FIG. 5 is a cross-sectional view showing a second embodiment of the vibration isolator according to the present invention.

【図6】本発明に係る防振装置の第2の実施の形態のダ
イヤフラムを示す斜視図である。
FIG. 6 is a perspective view showing a diaphragm of a vibration isolator according to a second embodiment of the present invention.

【図7】本発明に係る防振装置の第2の実施の形態を示
す断面図であって、防振装置内から空気を吸引した状態
を示す図である。
FIG. 7 is a cross-sectional view showing a second embodiment of the vibration isolator according to the present invention, showing a state where air is sucked from the inside of the vibration isolator.

【図8】本発明に係る防振装置の第2の実施の形態を示
す断面図であって、高スピードで振動の入力が与えられ
た状態を示す図である。
FIG. 8 is a cross-sectional view showing a second embodiment of the vibration isolator according to the present invention, showing a state where a vibration input is given at a high speed.

【図9】従来技術に係る防振装置を示す断面図である。FIG. 9 is a cross-sectional view illustrating a vibration isolator according to the related art.

【図10】従来技術に係る防振装置を示す断面図であっ
て、防振装置内から空気を吸引した状態を示す図であ
る。
FIG. 10 is a cross-sectional view illustrating a vibration isolator according to the related art, and is a diagram illustrating a state where air is sucked from inside the vibration isolator.

【図11】従来技術に係る防振装置を示す断面図であっ
て、高スピードで振動の入力が与えられた状態を示す図
である。
FIG. 11 is a cross-sectional view showing a vibration isolator according to the related art, showing a state where a vibration input is given at a high speed.

【符号の説明】[Explanation of symbols]

10 防振装置 12 底板金具(第1の取付部材) 14 支持筒金具(第1の取付部材) 16 弾性体 18 頂板金具(第2の取付部材) 22 ダイヤフラム 26 受圧液室 27 副液室 28 仕切部材 30 制限通路 42 リッジ(流体流通部) 44 球状凸部(流体流通部) DESCRIPTION OF SYMBOLS 10 Vibration isolator 12 Bottom plate fitting (1st mounting member) 14 Supporting tube fitting (1st mounting member) 16 Elastic body 18 Top plate fitting (2nd mounting member) 22 Diaphragm 26 Pressure receiving liquid chamber 27 Sub liquid chamber 28 Partition Member 30 Restricted passage 42 Ridge (fluid flow part) 44 Spherical convex part (fluid flow part)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 振動発生部及び振動受け部の一方に連結
される第1の取付部材と、 振動発生部及び振動受け部の他方に連結される第2の取
付部材と、 これら取付部材間に配設されて弾性変形し得る弾性体
と、 内壁の少なくとも一部が弾性体により構成され且つ液体
が封入される受圧液室と、 液体が封入される副液室と、 受圧液室と副液室との間を仕切り且つこれら受圧液室と
副液室との間を連通する制限通路が設けられた仕切部材
と、 副液室の内壁の少なくとも一部を変形自在に形成して副
液室を拡縮自在とすると共に、仕切部材に密着した際に
も流体を流通させ得る流体流通部が設けられたダイヤフ
ラムと、 を有することを特徴とする防振装置。
A first mounting member connected to one of the vibration generating portion and the vibration receiving portion; a second mounting member connected to the other of the vibration generating portion and the vibration receiving portion; An elastic body disposed and capable of being elastically deformed; a pressure receiving liquid chamber in which at least a part of the inner wall is made of an elastic body and in which a liquid is sealed; a sub liquid chamber in which the liquid is sealed; a pressure receiving liquid chamber and a sub liquid A partition member provided with a restriction passage for partitioning the pressure receiving liquid chamber and the sub liquid chamber from each other, and at least a part of an inner wall of the sub liquid chamber is formed to be deformable. And a diaphragm provided with a fluid circulating portion capable of circulating a fluid even when the diaphragm is in close contact with the partition member.
【請求項2】 流体流通部が、制限通路の開口部の少な
くとも近傍に対向するダイヤフラムの部分に設けられた
ことを特徴とする請求項1記載の防振装置。
2. The vibration isolator according to claim 1, wherein the fluid circulating portion is provided at a portion of the diaphragm facing at least near the opening of the restriction passage.
JP23863598A 1998-08-25 1998-08-25 Vibration isolating apparatus Pending JP2000065125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23863598A JP2000065125A (en) 1998-08-25 1998-08-25 Vibration isolating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23863598A JP2000065125A (en) 1998-08-25 1998-08-25 Vibration isolating apparatus

Publications (1)

Publication Number Publication Date
JP2000065125A true JP2000065125A (en) 2000-03-03

Family

ID=17033079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23863598A Pending JP2000065125A (en) 1998-08-25 1998-08-25 Vibration isolating apparatus

Country Status (1)

Country Link
JP (1) JP2000065125A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003001079A1 (en) * 2001-06-21 2003-01-03 Toyo Tire & Rubber Co., Ltd. Liquid-in vibration isolating device
JP2007064248A (en) * 2005-08-29 2007-03-15 Kurashiki Kako Co Ltd Liquid-sealed vibration damper
JP2007071252A (en) * 2005-09-05 2007-03-22 Kurashiki Kako Co Ltd Liquid-sealed vibration control device
US7413174B2 (en) 2005-03-29 2008-08-19 Tokai Rubber Industries, Ltd. Fluid-filled type vibration-damping device
WO2009015588A1 (en) * 2007-07-27 2009-02-05 Byd Company Limited Hydraulic mount and filling device for the same
JP2013036540A (en) * 2011-08-08 2013-02-21 Toyo Tire & Rubber Co Ltd Liquid-filled vibration isolator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003001079A1 (en) * 2001-06-21 2003-01-03 Toyo Tire & Rubber Co., Ltd. Liquid-in vibration isolating device
EP1270992A3 (en) * 2001-06-21 2004-03-31 Toyo Tire & Rubber Co., Ltd . Liquid-filled vibration isolating device
US7413174B2 (en) 2005-03-29 2008-08-19 Tokai Rubber Industries, Ltd. Fluid-filled type vibration-damping device
JP2007064248A (en) * 2005-08-29 2007-03-15 Kurashiki Kako Co Ltd Liquid-sealed vibration damper
JP2007071252A (en) * 2005-09-05 2007-03-22 Kurashiki Kako Co Ltd Liquid-sealed vibration control device
JP4646747B2 (en) * 2005-09-05 2011-03-09 倉敷化工株式会社 Liquid filled vibration isolator
WO2009015588A1 (en) * 2007-07-27 2009-02-05 Byd Company Limited Hydraulic mount and filling device for the same
US8360403B2 (en) 2007-07-27 2013-01-29 Byd Company, Ltd. Hydraulic mount and filling device for the same
JP2013036540A (en) * 2011-08-08 2013-02-21 Toyo Tire & Rubber Co Ltd Liquid-filled vibration isolator

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