JP2003042229A - Elastic suspension device - Google Patents

Elastic suspension device

Info

Publication number
JP2003042229A
JP2003042229A JP2001233816A JP2001233816A JP2003042229A JP 2003042229 A JP2003042229 A JP 2003042229A JP 2001233816 A JP2001233816 A JP 2001233816A JP 2001233816 A JP2001233816 A JP 2001233816A JP 2003042229 A JP2003042229 A JP 2003042229A
Authority
JP
Japan
Prior art keywords
vibration
support device
outer member
suspension device
elastic suspension
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
JP2001233816A
Other languages
Japanese (ja)
Inventor
Hitoshi Naito
均 内藤
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2001233816A priority Critical patent/JP2003042229A/en
Publication of JP2003042229A publication Critical patent/JP2003042229A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve vibration isolating performance without increasing the weight of an elastic suspension device. SOLUTION: This elastic suspension device M is provided with an outer member 11 fixed to a vibration source, an inner member 12 fixed to a support part and an elastic member 13 connecting the both members 11 and 12 to each other and multiple hole parts 14 penetrating through the outer member 11 are filled with resin or rubber material 15. When vibration inputted form the vibration source deforms the outer member 11 of the elastic suspension device M, the resin or rubber material 15 filling the hole parts 14 is deformed to exhibit a damping function. As a result, vibration transmission characteristics from the vibration source to the support part are improved so as to improve the vibration isolating performance of the elastic suspension device M and exhibit the vibration isolating performance in a wide frequency range. This constitution can dispense with addition of a large weight mass so as to contribute to the weight reduction of the whole elastic suspension device M.

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、振動源を支持部に
防振支持するための防振支持装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-damping support device for vibration-damping a vibration source to a support.

【0002】[0002]

【従来の技術】図8には自動車の車体フレームにエンジ
ンを防振支持する従来の防振支持装置Mが示される。防
振支持装置Mは、振動源であるエンジンに固定される略
環状のアウター部材01と、支持部である車体フレーム
に固定されるパイプ状のインナー部材02と、アウター
部材01の内周面およびインナー部材02の外周面を接
続するゴム等の弾性部材03,03と、アウター部材0
1の外周面に固定されたマス04とを備える。この防振
支持装置Mは、マス04の大きさを調整することによ
り、アウター部材01の固有振動数を変化させて振動を
低減するようになっている。
2. Description of the Related Art FIG. 8 shows a conventional vibration-damping support device M for vibration-damping an engine to a vehicle body frame. The anti-vibration support device M includes a substantially annular outer member 01 fixed to an engine that is a vibration source, a pipe-shaped inner member 02 fixed to a vehicle body frame that is a support portion, an inner peripheral surface of the outer member 01, and Elastic members 03, 03 such as rubber connecting the outer peripheral surface of the inner member 02 and the outer member 0
1 and a mass 04 fixed to the outer peripheral surface thereof. The vibration-damping support device M is adapted to change the natural frequency of the outer member 01 by adjusting the size of the mass 04 to reduce the vibration.

【0003】図9には自動車の車体フレームにエンジン
を防振支持する従来の他の防振支持装置Mが示される。
防振支持装置Mは、振動源であるエンジンに固定される
略環状のアウター部材01と、支持部である車体フレー
ムに固定されるパイプ状のインナー部材02と、アウタ
ー部材01の内周面およびインナー部材02の外周面を
接続するゴム製の弾性部材03,03と、アウター部材
01の外周面にゴム等の弾性部材05を介して固定され
たマス04とを備える。この防振支持装置Mは、マス0
4の大きさおよび弾性部材05の弾性を調整することに
より、マス04および弾性部材05よりなる付加振動系
の固有振動数を、アウター部材01の固有振動数に一致
させ、アウター部材01の振動を付加振動系の振動によ
り打ち消すようになっている。
FIG. 9 shows another conventional anti-vibration support device M for anti-vibrationly supporting an engine on a vehicle body frame.
The anti-vibration support device M includes a substantially annular outer member 01 fixed to an engine that is a vibration source, a pipe-shaped inner member 02 fixed to a vehicle body frame that is a support portion, an inner peripheral surface of the outer member 01, and Elastic members 03, 03 made of rubber for connecting the outer peripheral surface of the inner member 02 and a mass 04 fixed to the outer peripheral surface of the outer member 01 via an elastic member 05 such as rubber are provided. This anti-vibration support device M is
By adjusting the size of 4 and the elasticity of the elastic member 05, the natural frequency of the additional vibration system including the mass 04 and the elastic member 05 is made to match the natural frequency of the outer member 01, and the vibration of the outer member 01 is adjusted. It is designed to be canceled by the vibration of the additional vibration system.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、上記図
8に記載された防振支持装置Mは、充分な防振効果を得
ようとすると相当量のマス04を付加する必要があり、
そのために防振支持装置Mの重量が増加する問題があ
る。しかも固有振動数が変化した先の振動数領域では、
逆に振動が増加する場合があり、広い振動数領域で防振
効果を得ることが困難である。
However, in the vibration-damping support device M shown in FIG. 8, it is necessary to add a considerable amount of the mass 04 in order to obtain a sufficient vibration-damping effect.
Therefore, there is a problem that the weight of the anti-vibration support device M increases. Moreover, in the frequency range where the natural frequency changed,
On the contrary, the vibration may increase, and it is difficult to obtain the vibration damping effect in a wide frequency range.

【0005】また上記図9に記載された防振支持装置M
は、充分な防振効果を得ようとすると相当量のマス04
を付加する必要があり、そのために防振支持装置Mの重
量が増加する問題がある。またアウター部材01の複数
の固有振動数のうち、付加振動系の固有振動数に一致す
る特定の固有振動数でしか防振効果が得られないという
問題があり、しかも付加振動系を設けたことにより、元
のアウター部材01のみの場合の固有振動数の前後に新
たな二つの固有振動数が発生し、それらの固有振動数領
域で振動が増加する問題がある。
The anti-vibration support device M shown in FIG.
If you try to get a sufficient anti-vibration effect,
Therefore, there is a problem that the weight of the anti-vibration support device M increases. Further, among the plurality of natural frequencies of the outer member 01, there is a problem that the vibration damping effect can be obtained only at a specific natural frequency that matches the natural frequency of the additional vibration system, and the additional vibration system is provided. As a result, two new natural frequencies are generated before and after the natural frequency in the case of only the outer member 01, and there is a problem that the vibration increases in those natural frequency regions.

【0006】本発明は前述の事情に鑑みてなされたもの
で、防振支持装置の重量を増加させることなく防振性能
を向上させることを目的とする。
The present invention has been made in view of the above circumstances, and it is an object of the present invention to improve the vibration isolation performance without increasing the weight of the vibration isolation support device.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、請求項1に記載された発明によれば、振動源を支持
部に連結する連結部材に孔部を形成し、この孔に変形に
より減衰機能を発揮する物質を内蔵したことを特徴とす
る防振支持装置が提案される。
In order to achieve the above object, according to the invention described in claim 1, a hole is formed in a connecting member for connecting the vibration source to the support, and the hole is deformed. Therefore, a vibration-isolating support device is proposed in which a substance exhibiting a damping function is incorporated.

【0008】上記構成によれば、振動源を支持部に連結
する連結部材に形成した孔部に変形により減衰機能を発
揮する物質を内蔵したので、振動源の振動に伴って連結
部材が変形すると、その孔部に内蔵された物質が変形し
て減衰機能を発揮することで、振動伝達特性が改善され
て防振性能が向上する。しかもマスの付加を必要としな
いため、防振支持装置の重量が増加することもない。
According to the above structure, since the substance that exhibits a damping function by deformation is built in the hole formed in the connecting member that connects the vibration source to the supporting portion, when the connecting member deforms due to the vibration of the vibration source. The substance contained in the hole is deformed and exhibits a damping function, so that the vibration transmission characteristic is improved and the vibration isolation performance is improved. Moreover, since no additional mass is required, the weight of the anti-vibration support device does not increase.

【0009】また請求項2に記載された発明によれば、
請求項1の構成に加えて、孔部を有する連結部材を押し
出し成形したことを特徴とする防振支持装置が提案され
る。
According to the invention described in claim 2,
In addition to the structure of claim 1, there is proposed an anti-vibration supporting device characterized in that a connecting member having a hole is formed by extrusion.

【0010】上記構成によれば、孔部を有する連結部材
を押し出し成形したので、その連結部材を切削加工や鋳
造により成形する場合に比べて加工コストを低減するこ
とができる。尚、実施例のアウター部材11は本発明の
連結部材に対応する。
According to the above construction, since the connecting member having the hole is extruded, the processing cost can be reduced as compared with the case where the connecting member is formed by cutting or casting. The outer member 11 of the embodiment corresponds to the connecting member of the present invention.

【0011】[0011]

【発明の実施の形態】以下、本発明の実施の形態を、添
付図面に示した本発明の実施例に基づいて説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.

【0012】図1および図2は本発明の第1実施例を示
すもので、図1は防振支持装置の正面図、図2は図1の
2方向矢視図である。
1 and 2 show a first embodiment of the present invention. FIG. 1 is a front view of a vibration-proof support device, and FIG. 2 is a view in the direction of arrow 2 in FIG.

【0013】第1実施例の防振支持装置Mは、振動源で
あるエンジンを支持部である車体フレームに防振支持す
るためのもので、エンジンに固定される略環状のアウタ
ー部材11と、車体フレームに固定されるパイプ状のイ
ンナー部材12と、アウター部材11の内周面およびイ
ンナー部材12の外周面を接続するゴム等の弾性部材1
3,13とを備える。アウター部材11から半径方向に
延びる板状の取付部11aに2個のボルト孔11b,1
1bが形成されており、これらのボルト孔11b,11
bを貫通するボルトでアウター部材11がエンジンに固
定される。またインナー部材12は、その中心に形成さ
れたボルト孔12aを貫通するボルトで車体フレームに
固定される。
The vibration isolating support device M of the first embodiment is for vibrating and supporting an engine, which is a vibration source, on a vehicle body frame, which is a support part, and a substantially annular outer member 11 fixed to the engine. An elastic member 1 made of rubber or the like for connecting the pipe-shaped inner member 12 fixed to the vehicle body frame to the inner peripheral surface of the outer member 11 and the outer peripheral surface of the inner member 12.
3 and 13 are provided. Two bolt holes 11b, 1 are provided in a plate-shaped mounting portion 11a extending in a radial direction from the outer member 11.
1b is formed, and these bolt holes 11b, 11
The outer member 11 is fixed to the engine with a bolt penetrating b. Further, the inner member 12 is fixed to the vehicle body frame with a bolt penetrating a bolt hole 12a formed at the center thereof.

【0014】アウター部材11には複数個(実施例では
7個)の孔部14…が軸線L方向に貫通しており、これ
らの孔部14…に樹脂系あるいはゴム系の物質15…が
隙間無く充填される。アウター部材11は軸線Lに直交
する断面が一定の形状を有しているため、それを押し出
し成形することにより、切削加工や鋳造により成形する
場合に比べて加工コストを低減することができる。尚、
取付部11aのボルト孔11b,11bは押し出し成形
の後から機械加工する必要がある。
A plurality of (seven in the embodiment) hole portions 14 penetrate through the outer member 11 in the direction of the axis L, and resin- or rubber-based substances 15 ... Gap in these hole portions 14. Filled without. Since the outer member 11 has a constant cross-section orthogonal to the axis L, extrusion molding of the outer member 11 can reduce the processing cost as compared with the case of forming by cutting or casting. still,
The bolt holes 11b and 11b of the mounting portion 11a must be machined after extrusion molding.

【0015】上記構成の防振支持装置Mによれば、エン
ジンから入力される振動で防振支持装置Mのアウター部
材11が変形するため、その孔部14…に充填された樹
脂系あるいはゴム系の物質15…が変形して減衰機能を
発揮する。その結果、エンジンから車体フレームへの振
動伝達特性を改善して防振支持装置Mの防振性能を向上
させることができる。図8で説明したマスダンパーを備
えた従来の防振支持装置Mや、図9で説明したダイナミ
ックダンパーを備えた従来の防振支持装置Mと異なり、
本実施例の防振支持装置Mは広い周波数領域において防
振性能を発揮することができる。また重量の大きいマス
を付加する必要がないだけでなく、樹脂系あるいはゴム
系の物質15…はアウター部材11を構成する金属より
も軽量であるため、防振支持装置M全体の軽量化に寄与
することができる。
According to the anti-vibration support device M having the above-described structure, the outer member 11 of the anti-vibration support device M is deformed by the vibration input from the engine, so that the holes 14 are filled with resin or rubber. The substance 15 ... Is deformed and exhibits a damping function. As a result, it is possible to improve the vibration transmission characteristic from the engine to the vehicle body frame and improve the vibration isolation performance of the vibration isolation support device M. Unlike the conventional anti-vibration support device M including the mass damper described in FIG. 8 and the conventional anti-vibration support device M including the dynamic damper illustrated in FIG. 9,
The anti-vibration support device M of this embodiment can exhibit anti-vibration performance in a wide frequency range. Further, not only is it unnecessary to add a heavy mass, but since the resin-based or rubber-based substance 15 is lighter than the metal forming the outer member 11, it contributes to the weight reduction of the vibration-proof support device M as a whole. can do.

【0016】次に、図3および図4に基づいて本発明の
第2実施例を説明する。
Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

【0017】第2実施例の防振支持装置Mは、アウター
部材11の形状において前記第1実施例と異なってい
る。即ち、第2実施例のアウター部材11は接線方向に
延びる2個の取付部11a,11aを備えており、各々
の取付部11aに2個のボルト孔11b,11bが形成
される。アウター部材11には複数個(実施例では8
個)の孔部14…が形成されており、これらの孔部14
…に樹脂系あるいはゴム系の物質15…が隙間無く充填
される。
The vibration isolating support device M of the second embodiment differs from the first embodiment in the shape of the outer member 11. That is, the outer member 11 of the second embodiment is provided with two mounting portions 11a, 11a extending in the tangential direction, and two bolt holes 11b, 11b are formed in each mounting portion 11a. A plurality of outer members 11 (8 in the embodiment)
Individual hole portions 14 ... Are formed, and these hole portions 14 are formed.
Are filled with a resin-based or rubber-based substance 15 without any gap.

【0018】次に、図5および図6に基づいて本発明の
第3実施例を説明する。
Next, a third embodiment of the present invention will be described with reference to FIGS.

【0019】第3実施例の防振支持装置Mも、アウター
部材11の形状において前記第1実施例と異なってい
る。即ち、第3実施例のアウター部材11は直径方向に
延びる2個の取付部11a,11aを備えており、各々
の取付部11aに2個のボルト孔11b,11bが形成
される。アウター部材11には複数個(実施例では8
個)の孔部14…が形成されており、これらの孔部14
…に樹脂系あるいはゴム系の物質15…が隙間無く充填
される。
The vibration-damping support device M of the third embodiment also differs from the first embodiment in the shape of the outer member 11. That is, the outer member 11 of the third embodiment is provided with two mounting portions 11a, 11a extending in the diameter direction, and two bolt holes 11b, 11b are formed in each mounting portion 11a. A plurality of outer members 11 (8 in the embodiment)
Individual hole portions 14 ... Are formed, and these hole portions 14 are formed.
Are filled with a resin-based or rubber-based substance 15 without any gap.

【0020】これらの第2、第3実施例によっても、前
記第1実施例と同様の作用効果を達成することができ
る。特に、エンジンからの振動が2個の取付部11a,
11aから入力するため、アウター部材11を効果的に
変形させて防振性能を更に高めることができる。
The second and third embodiments can also achieve the same effects as the first embodiment. Especially, the vibration from the engine causes the two mounting portions 11a,
Since the data is input from 11a, it is possible to effectively deform the outer member 11 and further improve the vibration damping performance.

【0021】次に、図7に基づいて本発明の第4実施例
を説明する。
Next, a fourth embodiment of the present invention will be described with reference to FIG.

【0022】第4実施例は前記第1実施例の変形であっ
て、第1実施例では各々の孔部14に隙間無く樹脂系あ
るいはゴム系の物質15が充填されているのに対し、第
4実施例では孔部14の内周面のみに樹脂系あるいはゴ
ム系の物質15が固定されている。この構成によりコス
トの削減に寄与することができる。
The fourth embodiment is a modification of the first embodiment. In the first embodiment, each hole 14 is filled with a resin-based or rubber-based substance 15 without any gap, whereas the fourth embodiment is different from the first embodiment. In the fourth embodiment, the resin-based or rubber-based substance 15 is fixed only to the inner peripheral surface of the hole 14. This configuration can contribute to cost reduction.

【0023】以上、本発明の実施例を詳述したが、本発
明はその要旨を逸脱しない範囲で種々の設計変更を行う
ことが可能である。
Although the embodiments of the present invention have been described in detail above, the present invention can be modified in various ways without departing from the scope of the invention.

【0024】例えば、実施例の防振支持装置Mは環状の
アウター部材11を備えているが、アウター部材11は
環状以外の任意の形状であっても良い。
For example, although the vibration-damping support device M of the embodiment has the annular outer member 11, the outer member 11 may have any shape other than the annular shape.

【0025】また本発明はエンジンを車体フレームに支
持する防振支持装置Mに限定されず、他の任意の用途の
防振支持装置に対して適用することができる。
Further, the present invention is not limited to the anti-vibration support device M for supporting the engine on the vehicle body frame, and can be applied to anti-vibration support devices for other arbitrary uses.

【0026】[0026]

【発明の効果】以上のように請求項1に記載された発明
によれば、振動源を支持部に連結する連結部材に形成し
た孔部に変形により減衰機能を発揮する物質を内蔵した
ので、振動源の振動に伴って連結部材が変形すると、そ
の孔部に内蔵された物質が変形して減衰機能を発揮する
ことで、振動伝達特性が改善されて防振性能が向上す
る。しかもマスの付加を必要としないため、防振支持装
置の重量が増加することもない。
As described above, according to the invention as set forth in claim 1, since the hole formed in the connecting member for connecting the vibration source to the supporting portion contains the substance exhibiting the damping function by deformation, When the connecting member is deformed due to the vibration of the vibration source, the substance contained in the hole is deformed and exhibits a damping function, so that the vibration transmission characteristic is improved and the vibration isolation performance is improved. Moreover, since no additional mass is required, the weight of the anti-vibration support device does not increase.

【0027】また請求項2に記載された発明によれば、
孔部を有する連結部材を押し出し成形したので、その連
結部材を切削加工や鋳造により成形する場合に比べて加
工コストを低減することができる。
Further, according to the invention described in claim 2,
Since the connecting member having the hole is extruded, the processing cost can be reduced as compared with the case where the connecting member is formed by cutting or casting.

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

【図1】第1実施例に係る防振支持装置の正面図FIG. 1 is a front view of an anti-vibration support device according to a first embodiment.

【図2】図1の2方向矢視図FIG. 2 is a two-direction arrow view of FIG.

【図3】第2実施例に係る防振支持装置の正面図FIG. 3 is a front view of an anti-vibration support device according to a second embodiment.

【図4】図3の4方向矢視図FIG. 4 is a four-direction arrow view of FIG.

【図5】第3実施例に係る防振支持装置の正面図FIG. 5 is a front view of an anti-vibration support device according to a third embodiment.

【図6】図5の6方向矢視図FIG. 6 is a view in the direction of arrow 6 in FIG.

【図7】第4実施例に係る防振支持装置の正面図FIG. 7 is a front view of an anti-vibration support device according to a fourth embodiment.

【図8】従来の防振支持装置の正面図FIG. 8 is a front view of a conventional anti-vibration support device.

【図9】従来の他の防振支持装置の正面図FIG. 9 is a front view of another conventional anti-vibration support device.

【符号の説明】[Explanation of symbols]

11 アウター部材(連結部材) 14 孔部 15 変形により減衰機能を発揮する物質 11 Outer member (connecting member) 14 holes 15 Substances that exert a damping function by deformation

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 振動源を支持部に連結する連結部材(1
1)に孔部(14)を形成し、この孔部(14)に変形
により減衰機能を発揮する物質(15)を内蔵したこと
を特徴とする防振支持装置。
1. A connecting member (1) for connecting a vibration source to a support portion.
1) A vibration-isolating support device, characterized in that a hole (14) is formed in the hole (14), and a substance (15) exhibiting a damping function by deformation is incorporated in the hole (14).
【請求項2】 孔部(14)を有する連結部材(11)
を押し出し成形したことを特徴とする、請求項1に記載
の防振支持装置。
2. A connecting member (11) having a hole (14).
The anti-vibration support device according to claim 1, wherein the anti-vibration support device is formed by extrusion molding.
JP2001233816A 2001-08-01 2001-08-01 Elastic suspension device Pending JP2003042229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001233816A JP2003042229A (en) 2001-08-01 2001-08-01 Elastic suspension device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001233816A JP2003042229A (en) 2001-08-01 2001-08-01 Elastic suspension device

Publications (1)

Publication Number Publication Date
JP2003042229A true JP2003042229A (en) 2003-02-13

Family

ID=19065540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001233816A Pending JP2003042229A (en) 2001-08-01 2001-08-01 Elastic suspension device

Country Status (1)

Country Link
JP (1) JP2003042229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104512210A (en) * 2014-12-24 2015-04-15 上汽通用五菱汽车股份有限公司 Automotive suspension buffering block assembly
CN111688461A (en) * 2020-05-12 2020-09-22 宁波吉利汽车研究开发有限公司 Two-stage vibration isolation suspension structure and vehicle using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104512210A (en) * 2014-12-24 2015-04-15 上汽通用五菱汽车股份有限公司 Automotive suspension buffering block assembly
CN111688461A (en) * 2020-05-12 2020-09-22 宁波吉利汽车研究开发有限公司 Two-stage vibration isolation suspension structure and vehicle using same

Similar Documents

Publication Publication Date Title
US10006514B2 (en) Damper
EP0131795A2 (en) Improved insulator for use in automotive suspension or the like
US20050133325A1 (en) Dynamic damper
JP3425429B2 (en) Engine-gear unit mounting
KR20010091025A (en) Vibration damping device for vehicles
JPS62224746A (en) Fluid seal type vibrationproof supporting body
JP2000193015A (en) Fluid sealing type vibration control device
JPS63111340A (en) Solid transmission sound insulating flexible bearing
EP0410941A1 (en) A resilient mounting with a built-in phase shifter, particularly for motor vehicle engines
JP2003042229A (en) Elastic suspension device
JPH0381582A (en) Vibration-proof device for compressor
MXPA05007393A (en) Multi-direction tuned mass damper with unique assembly.
WO1996007036A1 (en) Dynamic damper and molding material therefor and method of manufacturing the same
US11692603B2 (en) Mount bushing with integrated isolated outer insert for enhanced high frequency isolation performance
JP2004052946A (en) Vibration damper
JP2006266383A (en) Dynamic damper
JP3088686B2 (en) Liquid filled type vibration damping device
US20030137087A1 (en) Hydraulic bushing with springs in series
JP2848399B2 (en) Inner / outer cylinder type fluid-filled vibration isolator
JPH04258549A (en) Dynamic damper
JPH03194237A (en) Fluid sealing type power unit mount device
JPH0324915Y2 (en)
JP2004150543A (en) Dynamic damper and propeller shaft
JP2004251425A (en) Vibration damper
US20040084888A1 (en) Dampener