JPH10331905A - Liquid enclosing bush - Google Patents
Liquid enclosing bushInfo
- Publication number
- JPH10331905A JPH10331905A JP14660997A JP14660997A JPH10331905A JP H10331905 A JPH10331905 A JP H10331905A JP 14660997 A JP14660997 A JP 14660997A JP 14660997 A JP14660997 A JP 14660997A JP H10331905 A JPH10331905 A JP H10331905A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- elastic body
- outer cylinder
- bush
- cylinder
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/416—Ball or spherical joints
Landscapes
- Vehicle Body Suspensions (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば自動車のサ
スペンションアームを車体に支持する部分に使用される
液体封入ブッシュに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid-filled bush used, for example, for supporting a suspension arm of an automobile on a vehicle body.
【０００２】[0002]
【従来の技術】かかる液体封入ブッシュは、例えば特開
平１−２７５２０９号公報に記載されているように公知
である。このような液体封入ブッシュは、ブッシュゴム
の弾性のみで振動吸収を行う従来のブッシュに比べて動
ばね定数を低下させることができるので、ロードノイズ
を効果的に低減することができる。2. Description of the Related Art Such a liquid-filled bush is known, for example, as described in Japanese Patent Application Laid-Open No. 1-275209. Such a liquid-filled bush can reduce the dynamic spring constant as compared with a conventional bush that absorbs vibration only by the elasticity of the bush rubber, so that road noise can be effectively reduced.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記特開平
１−２７５２０９号公報に記載された従来の液体封入ブ
ッシュは、内筒及び外筒が単一のブッシュゴムで連結さ
れているため、その軸方向及び半径方向のばね特性を細
かく調整することが難しいだけでなく、ブッシュゴム内
に形成された液室の断面形状を任意に設定することが難
しかった。In the conventional liquid-filled bush described in Japanese Patent Application Laid-Open No. 1-275209, since the inner cylinder and the outer cylinder are connected by a single bush rubber, the shaft is not provided. Not only is it difficult to finely adjust the spring characteristics in the direction and the radial direction, but also it is difficult to arbitrarily set the sectional shape of the liquid chamber formed in the bush rubber.
【０００４】本発明は前述の事情に鑑みてなされたもの
で、ブッシュゴムのばね特性や液室の断面形状を容易に
設定することが可能な液体封入ブッシュを提供すること
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 a liquid sealing bush in which the spring characteristics of the bush rubber and the sectional shape of the liquid chamber can be easily set.
【０００５】[0005]
【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に記載された発明は、支持軸に形成された
球状部を内周面にて回転自在に支持する内筒と、内筒の
軸方向一端側の外周面に固定された第１弾性体と、内筒
の外側を覆うように配置された外筒と、外筒の軸方向他
端側の内周面に固定された第２弾性体とを備えてなり、
外筒の内部に内筒を軸方向に挿入し、第１弾性体を外筒
の軸方向一端側の内周面に結合するとともに第２弾性体
を内筒の軸方向他端側の外周面に結合することにより、
第１弾性体及び第２弾性体間に液体が封入された液室を
形成したことを特徴とする。Means for Solving the Problems To achieve the above object, an invention according to claim 1 includes an inner cylinder for rotatably supporting a spherical portion formed on a support shaft on an inner peripheral surface, A first elastic body fixed to the outer peripheral surface at one end in the axial direction of the inner cylinder; an outer cylinder arranged to cover the outer side of the inner cylinder; and an inner peripheral surface fixed to the other end in the axial direction of the outer cylinder. And a second elastic body,
The inner cylinder is inserted into the outer cylinder in the axial direction, the first elastic body is coupled to the inner peripheral surface at one axial end of the outer cylinder, and the second elastic body is coupled to the outer peripheral surface at the other axial end of the inner cylinder. By combining with
A liquid chamber filled with liquid is formed between the first elastic body and the second elastic body.
【０００６】上記構成によれば、内筒及び第１弾性体を
一体化したものと外筒及び第２弾性体を一体化したもの
とを軸方向に結合することにより、第１弾性体及び第２
弾性体間に液体が封入された液室が形成される。第１弾
性体及び第２弾性体を別個に製造することができるの
で、それら第１、第２弾性体の軸方向及び半径方向のば
ね特性を細かく調整することが容易であるばかりか、液
室の断面形状を任意に設定することも容易である。According to the above construction, the first elastic body and the first elastic body are axially connected to the integral body of the inner cylinder and the first elastic body and the integral body of the outer cylinder and the second elastic body. 2
A liquid chamber in which liquid is sealed is formed between the elastic bodies. Since the first elastic body and the second elastic body can be manufactured separately, it is easy to finely adjust the spring characteristics in the axial and radial directions of the first and second elastic bodies, and furthermore, the liquid chamber is formed. It is also easy to arbitrarily set the cross-sectional shape of.
【０００７】また請求項２に記載された発明は、支持軸
に形成された球状部を内周面にて回転自在に支持する内
筒と、内筒の軸方向一端側の外周面に固定された第１弾
性体と、軸方向一端側の内周面が第１弾性体に固定され
た外筒と、外筒の内部に軸方向に挿入されて内筒の軸方
向他端側の外周面及び外筒の軸方向他端側の内周面に固
定される第２弾性体と、第１弾性体及び第２弾性体間に
形成されて液体が封入された液室とを備えたことを特徴
とする。According to a second aspect of the present invention, there is provided an inner cylinder for rotatably supporting a spherical portion formed on a support shaft on an inner peripheral surface, and an inner cylinder fixed to an outer peripheral surface at one axial end of the inner cylinder. A first elastic body, an outer cylinder having an inner peripheral surface at one axial end fixed to the first elastic body, and an outer peripheral surface axially inserted into the outer cylinder at the other axial end of the inner cylinder. A second elastic body fixed to the inner peripheral surface on the other axial side of the outer cylinder; and a liquid chamber formed between the first elastic body and the second elastic body and filled with a liquid. Features.
【０００８】上記構成によれば、内筒、第１弾性体及び
外筒を一体化したものと第２弾性体とを軸方向に結合す
ることにより、第１弾性体及び第２弾性体間に液体が封
入された液室が形成される。第１弾性体及び第２弾性体
を別個に製造することができるので、それら第１、第２
弾性体の軸方向及び半径方向のばね特性を細かく調整す
ることが容易であるばかりか、液室の断面形状を任意に
設定することも容易である。[0008] According to the above construction, by integrating the inner cylinder, the first elastic body, and the outer cylinder integrally and the second elastic body in the axial direction, between the first elastic body and the second elastic body. A liquid chamber filled with liquid is formed. Since the first elastic body and the second elastic body can be manufactured separately, the first and second elastic bodies can be manufactured separately.
Not only is it easy to finely adjust the axial and radial spring characteristics of the elastic body, but it is also easy to arbitrarily set the cross-sectional shape of the liquid chamber.
【０００９】また請求項３に記載された発明は、請求項
１又は２の構成に加えて、第１弾性体及び第２弾性体を
一体に組み付ける前に、それら第１弾性体及び第２弾性
体の少なくとも一方に圧縮方向の予荷重を加えたことを
特徴とする。According to a third aspect of the present invention, in addition to the constitution of the first or second aspect, before the first elastic body and the second elastic body are assembled together, the first elastic body and the second elastic body are combined. A preload in the compression direction is applied to at least one of the bodies.
【００１０】上記構成によれば、荷重の入力により第１
弾性体及び第２弾性体が変形した際の耐久性が高められ
る。[0010] According to the above configuration, the first input is performed by the input of the load.
The durability when the elastic body and the second elastic body are deformed is enhanced.
【００１１】また請求項４に記載された発明は、請求項
１又は２の構成に加えて、第１弾性体の外周に半径方向
のクリアランスを介して外筒を組み付けた後に、外筒を
半径方向内側に絞り加工して前記クリアランスを消滅さ
せることを特徴とする。According to a fourth aspect of the present invention, in addition to the configuration of the first or second aspect, after the outer cylinder is assembled to the outer periphery of the first elastic body via a radial clearance, the outer cylinder is radially moved. The clearance is eliminated by drawing inward in the direction.
【００１２】上記構成によれば、組立時に外筒と第１弾
性体との干渉を防止して組立作業を効率化することがで
きる。また液中で組立を行う場合には、液室内の余剰の
液体をクリアランスを通して排出することができる。According to the above configuration, it is possible to prevent interference between the outer cylinder and the first elastic body at the time of assembling, thereby increasing the efficiency of assembling work. Also, when assembling in a liquid, excess liquid in the liquid chamber can be discharged through the clearance.
【００１３】また請求項５に記載された発明は、請求項
１又は２の構成に加えて、外筒を支持部材に軸方向に圧
入する荷重を受ける平坦な荷重受け面を備えたことを特
徴とする。According to a fifth aspect of the present invention, in addition to the structure of the first or second aspect, a flat load-receiving surface for receiving a load for press-fitting the outer cylinder into the support member in the axial direction is provided. And
【００１４】上記構成によれば、液体封入ブッシュを圧
入により支持部材に固定する際に、その圧入荷重を受け
止めて確実な圧入を行うことができる。According to the above configuration, when the liquid-filled bush is fixed to the support member by press-fitting, the press-fitting load can be received to ensure the press-fitting.
【００１５】[0015]
【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。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.
【００１６】図１〜図５は本発明の第１実施例を示すも
ので、図１は液体封入ブッシュを用いたフロントサスペ
ンションの斜視図、図２は図１の２−２線拡大断面図、
図３は液体封入ブッシュの組立工程を示す図、図４は液
体封入ブッシュの支持部材への圧入工程を示す図、図５
は液体封入ブッシュの特性を示すグラフである。1 to 5 show a first embodiment of the present invention. FIG. 1 is a perspective view of a front suspension using a liquid sealing bush, FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.
FIG. 3 is a diagram showing a process of assembling the liquid sealing bush, FIG. 4 is a diagram showing a process of pressing the liquid sealing bush into the support member, and FIG.
Is a graph showing characteristics of the liquid-filled bush.
【００１７】図１は自動車の左前輪のサスペンションを
示すものである。図示せぬ車輪を回転自在に支持するナ
ックル１は、アッパーアーム２及びロアアーム３によっ
て車体に連結される。ナックル１の上下動はコイルばね
４を一体に備えたショックアブソーバ５により緩衝され
る。本実施例の液体封入ブッシュＢは、例えばアッパー
アーム２の二股になった内端を車体に支持するために使
用される。FIG. 1 shows a suspension for a left front wheel of a motor vehicle. A knuckle 1 for rotatably supporting wheels (not shown) is connected to a vehicle body by an upper arm 2 and a lower arm 3. The vertical movement of the knuckle 1 is buffered by a shock absorber 5 integrally provided with a coil spring 4. The liquid-filled bush B of this embodiment is used, for example, to support the bifurcated inner end of the upper arm 2 on the vehicle body.
【００１８】図２に示すように、液体封入ブッシュＢの
支持軸１１は、それを車体に固定するボルト６（図１参
照）が貫通するボルト孔１１1 を有する中空の部材であ
って、その軸方向中央に球状部１１2 が一体に形成され
る。支持軸１１の球状部１１ 2 は、内筒１２の内周面に
固定された合成樹脂製のベアリング１３に回転自在に支
持される。ベアリング１３は、その軸方向左端が内筒１
２の内周面に形成したフランジ１２1 に突き当てられた
状態で、その軸方向右端が内筒１２の内周面に形成した
段部１２2 に突き当てられてカシメａにより固定された
リテーナ１４で支持される。As shown in FIG.
The support shaft 11 is provided with bolts 6 (see FIG. 1) for fixing the support shaft to the vehicle body.
Bolt hole 11 through which1A hollow member having
The spherical part 11 is located at the center in the axial direction.TwoAre integrally formed
You. Spherical part 11 of support shaft 11 TwoOn the inner peripheral surface of the inner cylinder 12
It is rotatably supported by a fixed synthetic resin bearing 13.
Be held. The left end of the bearing 13 in the axial direction is the inner cylinder 1.
Flange 12 formed on inner peripheral surface of 21Hit by
In this state, the right end in the axial direction was formed on the inner peripheral surface of the inner cylinder 12.
Step 12TwoAnd fixed by caulking a
Supported by retainer 14.
【００１９】内筒１２の軸方向左側の外周面には、環状
の第１ブッシュゴム１５の内周面が加硫焼き付け接着に
より固定されるとともに、その第１ブッシュゴム１５の
外周面には第１カラー１６の内周面が加硫焼き付け接着
により固定される。第１ブッシュゴム１５は本発明にお
ける第１弾性体を構成する。内筒１２の外側に配置され
た外筒１８の軸方向右側の内周面に第２ブッシュゴム１
７が加硫焼き付け接着により固定されており、この第２
ブッシュゴム１７の内周面に第２カラー１９の外周面が
加硫焼き付け接着により固定される。尚、第１カラー１
６は半径方向に延びる平坦なフランジ１６1 を備えてお
り、このフランジ１６1 に第１ブッシュゴム１５を結合
することにより、該第１ブッシュゴム１５の軸方向のば
ね定数が高められる。The inner peripheral surface of an annular first bush rubber 15 is fixed to the outer peripheral surface on the left side in the axial direction of the inner cylinder 12 by vulcanizing and baking, and the outer peripheral surface of the first bush rubber 15 is The inner peripheral surface of one collar 16 is fixed by vulcanization baking adhesion. The first bush rubber 15 constitutes a first elastic body in the present invention. The second bush rubber 1 is provided on the inner peripheral surface on the right side in the axial direction of the outer cylinder 18 disposed outside the inner cylinder 12.
7 is fixed by vulcanization baking adhesion.
The outer peripheral surface of the second collar 19 is fixed to the inner peripheral surface of the bush rubber 17 by vulcanization and bonding. In addition, the first color 1
6 is provided with a flat flange 16 1 extending radially, by coupling a first bushing rubber 15 to the flange 16 1, the axial direction of the spring constant of the first bushing rubber 15 is enhanced.
【００２０】内筒１２の外周面に形成した環状の溝１２
3 にＯリング２０が装着されており、このＯリング２０
によって第２カラー１９の内周面との間がシールされ
る。尚、第１ブッシュゴム１５の内周右端に第２カラー
１９の左端が押し付けられることによっても、内筒１２
及び第２カラー１９間がシールされる。外筒１８の左端
部がカシメｂにより第１カラー１６に固定される。この
とき、第２ブッシュゴム１７の外周左端に第１カラー１
６の右端が押し付けられることにより、外筒１８及び第
１カラー１６間がシールされる。而して、第１、第２ブ
ッシュゴム１５，１７間に液体が封入された環状の液室
２１が形成される。An annular groove 12 formed on the outer peripheral surface of the inner cylinder 12
3 has an O-ring 20 mounted thereon.
This seals the space between the second collar 19 and the inner peripheral surface. The inner sleeve 12 is also pressed by pressing the left end of the second collar 19 against the right end of the inner circumference of the first bush rubber 15.
And the second collar 19 is sealed. The left end of the outer cylinder 18 is fixed to the first collar 16 by caulking b. At this time, the first collar 1 is attached to the outer left end of the second bush rubber 17.
When the right end of 6 is pressed, the space between the outer cylinder 18 and the first collar 16 is sealed. Thus, an annular liquid chamber 21 in which liquid is sealed is formed between the first and second bush rubbers 15 and 17.
【００２１】支軸１１の球状部１１2 とベアリング１３
との接触面に塵埃が付着しないように、支軸１１の左端
と内筒１２との間、支軸１１の右端とリテーナ１４との
間に、それぞれゴム製のブーツ２２，２２が装着され
る。[0021] The spherical portion 11 2 and the bearing 13 of the spindle 11
Rubber boots 22, 22 are mounted between the left end of the support shaft 11 and the inner cylinder 12 and between the right end of the support shaft 11 and the retainer 14, respectively, so that dust does not adhere to the contact surface with the base. .
【００２２】次に、前述の構成を備えた液体封入ブッシ
ュＢの製造工程を、図３に基づいて説明する。Next, a manufacturing process of the liquid-filled bush B having the above-described configuration will be described with reference to FIG.
【００２３】先ず、図３に示すように、外筒１８、第２
ゴムブッシュ１７及び第２カラー１９を一体化したもの
を液体を満たした液槽Ｔ内に沈めた状態で、内筒１２、
第１ブッシュゴム１５及び第１カラー１６を一体化した
ものを矢印Ａ方向に挿入し、内筒１２の外周面と第２カ
ラー１９の内周面とがＯリング２０を介して密着するよ
うに圧入する。このとき、第１カラー１６と外筒１８と
の間に半径方向のクリアランスαが形成されるため、第
１カラー１６に対する外筒１８の嵌め合わせが容易であ
るのは勿論のこと、第１ブッシュゴム１５及び第２ブッ
シュゴム１７に挟まれた液室２１に封入される液体のう
ちの余剰分を前記クリアランスαを通って液槽Ｔ内に排
出することができる。First, as shown in FIG.
With the rubber bush 17 and the second collar 19 integrated into a liquid tank T filled with liquid, the inner cylinder 12,
The one in which the first bush rubber 15 and the first collar 16 are integrated is inserted in the direction of arrow A so that the outer peripheral surface of the inner cylinder 12 and the inner peripheral surface of the second collar 19 are in close contact via the O-ring 20. Press in. At this time, since the radial clearance α is formed between the first collar 16 and the outer cylinder 18, it is easy to fit the outer cylinder 18 to the first collar 16. A surplus of the liquid sealed in the liquid chamber 21 sandwiched between the rubber 15 and the second bush rubber 17 can be discharged into the liquid tank T through the clearance α.
【００２４】続いて、外筒１８を半径方向内側（矢印Ｂ
方向）に絞り加工することにより、外筒１８の内周面を
第１カラー１６の外周面に密着させて液室２１内に液体
を封入するとともに、外筒１８の端部を矢印Ｃ方向にカ
シメて第１カラー１６に結合する。尚、図２の円内に示
すように、第２カラー１９を圧入した後の内筒１２の外
周をカシメｅで固定することにより、第２カラー１９の
抜けを確実に防止することができる。Subsequently, the outer cylinder 18 is moved radially inward (arrow B).
Direction), the inner peripheral surface of the outer cylinder 18 is brought into close contact with the outer peripheral surface of the first collar 16 to seal the liquid in the liquid chamber 21, and the end of the outer cylinder 18 is moved in the direction of arrow C. It is crimped and connected to the first collar 16. As shown in the circle of FIG. 2, the outer periphery of the inner cylinder 12 after the press-fitting of the second collar 19 is fixed by caulking e, so that the second collar 19 can be reliably prevented from coming off.
【００２５】このようにして内筒１２、第１ブッシュゴ
ム１５、第１カラー１６、第２ブッシュゴム１７、外筒
１８及び第２カラー１９を一体化したものを液槽Ｔから
取り出した後、図２に示すように、内筒１２の内部にベ
アリング１３、支持軸１１、リテーナ１４及びブーツ２
２，２２を組み付ける。After the inner cylinder 12, the first bush rubber 15, the first collar 16, the second bush rubber 17, the outer cylinder 18, and the second collar 19 are taken out of the liquid tank T in this manner, As shown in FIG. 2, a bearing 13, a support shaft 11, a retainer 14 and a boot 2
Assemble 2, 22.
【００２６】上述のようにして製造された液体封入ブッ
シュＢは、図１に示すように、その支持軸１１がボルト
孔１１1 を貫通するボルト６によってアッパーアーム２
の内端に固定されるとともに、その外筒１８が車体への
支持部材７の環状の取付部に圧入によって固定される。
図４に示すように、液体封入ブッシュＢの外筒１８を前
記取支持材７の取付部７1 に圧入する際に、第１カラー
１６の前記フランジ１６1 が圧入治具Ｊの荷重を受ける
荷重受け面として利用されるので、圧入作業を容易に行
うことができる。The fluid-filled bushing B produced as described above, as shown in FIG. 1, the upper arm 2 by bolts 6 to the support shaft 11 penetrates the bolt holes 11 1
And the outer cylinder 18 is fixed by press-fitting to an annular attachment portion of the support member 7 to the vehicle body.
As shown in FIG. 4, when press-fitting the outer tube 18 of the fluid-filled bushing B to the mounting portion 71 of the intake support 7, the flange 16 1 of the first collar 16 receive the load of the press-fitting jig J Since it is used as a load receiving surface, the press-fitting operation can be easily performed.
【００２７】ナックル１の上下動に伴ってアッパーアー
ム２が回転すると、アッパーアーム２側に支持されたベ
アリング１３と、車体側に支持された支持軸１１の球状
部１１2 とが球面接触状態で相互に滑りあい、前記アッ
パーアーム２のスムーズな回転を許容する。ナックル１
からアッパーアーム２に荷重が入力すると、液体封入ブ
ッシュＢの第１、第２ブッシュゴム１５，１７が弾性変
形することにより前記荷重が吸収される。また前記荷重
により第１、第２ブッシュゴム１５，１７が弾性変形し
て内筒１２及び外筒１８が直径方向に相対変位し、環状
の液室２１の直径方向一側及び他側の容積が交互に増減
すると、容積が減少した側から増加した側に液体が流れ
て液室２１内に液柱共振現象が発生し、その結果液体封
入ブッシュＢの動ばね定数が低下してロードノイズが効
果的に低減される。[0027] upper arm 2 with the vertical movement of the knuckle 1 is rotated, the bearing 13 supported by the upper arm 2 side, and the spherical portion 11 2 of the support shaft 11 which is supported on the vehicle body side is a spherical surface contact Sliding with each other allows smooth rotation of the upper arm 2. Knuckle 1
When a load is input to the upper arm 2 from the above, the first and second bush rubbers 15 and 17 of the liquid-filled bush B are elastically deformed to absorb the load. Further, the first and second bush rubbers 15 and 17 are elastically deformed by the load, and the inner cylinder 12 and the outer cylinder 18 are relatively displaced in the diametrical direction, so that the volume of the annular liquid chamber 21 on one side and the other side in the diametrical direction is reduced. When the volume increases and decreases alternately, the liquid flows from the side where the volume is reduced to the side where the volume is increased, and a liquid column resonance phenomenon occurs in the liquid chamber 21. As a result, the dynamic spring constant of the liquid sealing bush B is reduced and the road noise is reduced. Is significantly reduced.
【００２８】尚、動ばね定数の低下は第１、第２ブッシ
ュゴム１５、１７を柔らかくすることによっても達成さ
れるが、このようにすると静ばね定数も同時に低下して
しまい、サスペンションのキャンバー方向の剛性が低下
して操縦安定性能が悪化する。しかしながら、本実施例
によれば、静ばね定数を低下させることなく動ばね定数
を低下させることができるので、操縦安定性能と防振性
能との両立が可能となる。図５に示すように、液室２１
を有する本実施例の液体封入ブッシュＢは、液室を持た
ない従来のブッシュに比べて、斜線で示す常用周波数領
域で動ばね定数が低下していることが分かる。The dynamic spring constant can also be reduced by softening the first and second bush rubbers 15 and 17, but this reduces the static spring constant at the same time and causes the camber of the suspension to move in the camber direction. Stiffness is reduced, and steering stability is deteriorated. However, according to the present embodiment, since the dynamic spring constant can be reduced without lowering the static spring constant, it is possible to achieve both steering stability performance and vibration isolation performance. As shown in FIG.
It can be seen that the liquid-filled bush B of the present example having the liquid spring has a lower dynamic spring constant in the normal frequency region indicated by oblique lines than the conventional bush having no liquid chamber.
【００２９】而して、内筒１２及び第１ブッシュゴム１
５を一体化したものと、外筒１８及び第２ブッシュゴム
１７を一体化したものとを軸方向に結合するだけで、第
１ブッシュゴム１５及び第２ブッシュゴム１７間に液室
２１を自動的に形成することができる。このとき第１、
第２ブッシュゴム１５，１７の材料や形状を相互に独立
に設定することができるので、それら第１、第２ブッシ
ュゴム１５，１７の軸方向及び半径方向のばね特性を細
かく調整することが容易である。しかも、液室２１の断
面形状を任意に変化させることができるため、液柱共振
特性の設定も容易である。Thus, the inner cylinder 12 and the first bush rubber 1
The liquid chamber 21 is automatically interposed between the first bush rubber 15 and the second bush rubber 17 only by axially connecting the one integrated with the outer cylinder 18 and the one integrated with the outer cylinder 18 and the second bush rubber 17. Can be formed. At this time,
Since the materials and shapes of the second bush rubbers 15 and 17 can be set independently of each other, it is easy to finely adjust the axial and radial spring characteristics of the first and second bush rubbers 15 and 17. It is. In addition, since the cross-sectional shape of the liquid chamber 21 can be arbitrarily changed, setting of the liquid column resonance characteristics is also easy.
【００３０】ところで、図３に示すように、液中で内筒
１２及び外筒１８を結合する際に、クリアランスαから
液体を逃がして液室２１内の圧力が高まらないようにし
ているが、外筒１８を矢印Ｂ方向に絞り加工する際に液
室２１の容積が僅かに減少するため、その液室２１の圧
力が変化して液体封入ブッシュＢの静ばね定数や動ばね
定数がばらつく可能性がある。As shown in FIG. 3, when connecting the inner cylinder 12 and the outer cylinder 18 in the liquid, the liquid is released from the clearance α so that the pressure in the liquid chamber 21 does not increase. When the outer cylinder 18 is drawn in the direction of arrow B, the volume of the liquid chamber 21 is slightly reduced, so that the pressure of the liquid chamber 21 changes and the static spring constant and dynamic spring constant of the liquid sealing bush B can vary. There is.
【００３１】そこで、図６に示す第１の変形例では、第
１ブッシュゴム１５及び内筒１２を貫通する液体注入孔
２３を形成し、液室２１を真空にして該液体注入孔２３
から液室２１に液体を注入し、液体の注入後に液体注入
孔２３をボール２４（或いはリベット等）で閉塞するよ
うになっている。これにより、液室２１の内圧を一定に
保って液体封入ブッシュＢの静ばね定数や動ばね定数を
安定させることができる。また図７に示す第２の変形例
の如く、液体注入孔２３及びボール２４を第２ブッシュ
ゴム１７及び外筒１８に設けることもできる。尚、液中
で組立を行うことにより液室２１を液体で満たした後
に、液体注入孔２３をボール２４で閉塞することも可能
である。Therefore, in a first modified example shown in FIG. 6, a liquid injection hole 23 penetrating the first bush rubber 15 and the inner cylinder 12 is formed, and the liquid chamber 21 is evacuated to make the liquid injection hole 23
The liquid is injected into the liquid chamber 21 from below, and after the liquid is injected, the liquid injection hole 23 is closed with a ball 24 (or a rivet or the like). Thereby, the static pressure and the dynamic spring constant of the liquid sealing bush B can be stabilized while maintaining the internal pressure of the liquid chamber 21 constant. Also, as in the second modification shown in FIG. 7, the liquid injection hole 23 and the ball 24 can be provided in the second bush rubber 17 and the outer cylinder 18. It is also possible to close the liquid injection hole 23 with the ball 24 after the liquid chamber 21 is filled with the liquid by performing the assembly in the liquid.
【００３２】次に、図８及び図９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.
【００３３】図２及び図８を比較すると明らかなよう
に、図２に示す第１実施例では内筒１２に固定された第
１ブッシュゴム１５が軸方向左側に配置され、外筒１８
に固定された第２ブッシュゴム１７が軸方向右側に配置
されているが、図８に示す第２実施例では第１、第２ブ
ッシュゴム１５，１７の位置関係が逆になっており、内
筒１２に固定された第１ブッシュゴム１５が軸方向右側
に配置され、外筒１８に固定された第２ブッシュゴム１
７が軸方向左側に配置される。As is apparent from a comparison between FIGS. 2 and 8, in the first embodiment shown in FIG. 2, the first bush rubber 15 fixed to the inner cylinder 12 is disposed on the left side in the axial direction,
Although the second bush rubber 17 fixed to the shaft is disposed on the right side in the axial direction, the positional relationship between the first and second bush rubbers 15 and 17 is reversed in the second embodiment shown in FIG. The first bush rubber 15 fixed to the cylinder 12 is disposed on the right side in the axial direction, and the second bush rubber 1 fixed to the outer cylinder 18.
7 is arranged on the left side in the axial direction.
【００３４】而して、内筒１２及び外筒１８を図９の矢
印Ｄ方向に接近させて結合した後、図８に示すように、
内筒１２の左端をカシメｃにより第２カラー１９の左端
に固定し、更に外筒１８の右端をカシメｄにより第１カ
ラー１６の右端に固定する。その結果、内筒１２の段部
１２4 と第２カラー１９の右端との間に第２ブッシュゴ
ム１７のシール部１７1 が挟まれてシールされるととも
に、第１カラー１６の左端が第２ブッシュゴム１７の外
周右端に押し付けられてシールされることにより、液室
２１からの液体の漏れが防止される。After the inner cylinder 12 and the outer cylinder 18 have been brought together in the direction of arrow D in FIG. 9 and joined together, as shown in FIG.
The left end of the inner cylinder 12 is fixed to the left end of the second collar 19 by caulking c, and the right end of the outer cylinder 18 is fixed to the right end of the first collar 16 by caulking d. As a result, the seal portion 17 1 of the second bushing rubber 17 is sandwiched and sealed between the stepped portion 12 4 of the inner cylinder 12 and the right end of the second collar 19, the left end of the first collar 16 second The seal is pressed against the right end of the outer periphery of the bush rubber 17 to prevent leakage of the liquid from the liquid chamber 21.
【００３５】この第２実施例によれば、内筒１２及び第
２カラー１９の固定と、外筒１８及び第１カラー１６の
固定とが共にカシメｃ，ｄにより行われるので、組み付
けの信頼性が向上する。According to the second embodiment, the fixing of the inner cylinder 12 and the second collar 19 and the fixing of the outer cylinder 18 and the first collar 16 are both performed by caulking c and d. Is improved.
【００３６】次に、図１０及び図１１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.
【００３７】第３実施例の液体封入ブッシュＢは、その
内筒１２及び外筒１８の左側部分が予め第１ブッシュゴ
ム１５により一体に結合される。そして外周及び内周に
それぞれ第１カラー１６及び第２カラー１９が固定され
た第２ブッシュゴム１７が、内筒１２、外筒１８及び第
１ブッシュゴム１５を一体化したものに、図１１の矢印
Ｅ方向に圧入されて組み付けられる。In the liquid-filled bush B of the third embodiment, the left portions of the inner cylinder 12 and the outer cylinder 18 are integrally connected in advance by a first bush rubber 15. A second bush rubber 17 having a first collar 16 and a second collar 19 fixed to the outer periphery and the inner periphery, respectively, is obtained by integrating the inner cylinder 12, the outer cylinder 18 and the first bush rubber 15 with each other as shown in FIG. It is press-fitted in the direction of arrow E and assembled.
【００３８】この第３実施例によれば、第１カラー１６
及び第２カラー１９が固定された第２ブッシュゴム１７
が内筒１２及び外筒１８と別体になって小型化されるた
め、その加硫成形が容易になってコスト削減が可能とな
る。According to the third embodiment, the first collar 16
And the second bush rubber 17 to which the second collar 19 is fixed
Is compacted separately from the inner cylinder 12 and the outer cylinder 18, so that vulcanization can be facilitated and cost can be reduced.
【００３９】図１２は本発明の第４実施例を示すもので
ある。第４実施例の液体封入ブッシュＢは、外筒１８、
第２ブッシュゴム１７及び第２カラー１９を一体化した
ものに対して、予め外筒１８を鎖線位置から実線位置へ
と矢印Ｇ方向に絞る絞り加工を施しておく。そして、こ
の外筒１８、第２ブッシュゴム１７及び第２カラー１９
を一体化したものを、図３に示すように、内筒１２の外
側に被せて矢印Ｂ方向の絞り加工を行うことにより、外
筒１８及び第１カラー１６間のクリアランスαを消滅さ
せる。この第４実施例によれば、第２ブッシュゴム１７
に予荷重を与えて耐久性を向上させることができる。FIG. 12 shows a fourth embodiment of the present invention. The liquid-filled bush B of the fourth embodiment includes an outer cylinder 18,
The outer bush 18 is preliminarily subjected to drawing in the direction of arrow G from the chain line position to the solid line position with respect to the integrated body of the second bush rubber 17 and the second collar 19. The outer cylinder 18, the second bush rubber 17 and the second collar 19
As shown in FIG. 3, the clearance α between the outer cylinder 18 and the first collar 16 is eliminated by covering the outside of the inner cylinder 12 and drawing in the direction of arrow B as shown in FIG. According to the fourth embodiment, the second bush rubber 17
Can be given a preload to improve durability.
【００４０】図１３及び図１４は本発明の第５実施例を
示すものである。第５実施例は、外筒１８を半径方向内
側に絞ることにより第２ブッシュゴム１７を圧縮して予
荷重を加える工程（第４実施例参照）と、外筒１８及び
第１カラー１６間のクリアランスαを消滅させる工程
と、外筒１８の左端をカシメて第１カラー１６に固定す
る工程とを、金型Ｄ，Ｄを用いて一工程で完了させるこ
とができる。FIGS. 13 and 14 show a fifth embodiment of the present invention. In the fifth embodiment, a step of compressing the second bush rubber 17 to apply a preload by squeezing the outer cylinder 18 inward in the radial direction (refer to the fourth embodiment) and a step between the outer cylinder 18 and the first collar 16 are performed. The process of eliminating the clearance α and the process of caulking the left end of the outer cylinder 18 and fixing it to the first collar 16 can be completed in one process using the dies D and D.
【００４１】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, various design changes can be made in the present invention without departing from the gist thereof.
【００４２】例えば、第１実施例では外筒１８及び第１
カラー１６間にクリアランスαを形成しているが、内筒
１２及び第２カラー１９間にクリアランスαを形成して
も良く、その両方にクリアランスαを形成しても良い。
また第４、第５実施例では第２ブッシュゴム１７に予荷
重を与えているが、第１ブッシュゴム１５に予荷重を与
えても、第１、第２ブッシュゴム１５，１７の両方に予
荷重を与えても良い。また第１〜第５実施例のそれぞれ
の特徴を任意に組み合わせることも可能である。For example, in the first embodiment, the outer cylinder 18 and the first
Although the clearance α is formed between the collars 16, the clearance α may be formed between the inner cylinder 12 and the second collar 19, or the clearance α may be formed on both of them.
In the fourth and fifth embodiments, the preload is applied to the second bush rubber 17, but even if the preload is applied to the first bush rubber 15, the preload is applied to both the first and second bush rubbers 15, 17. A load may be applied. Further, the features of the first to fifth embodiments can be arbitrarily combined.
【００４３】[0043]
【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、支持軸に形成された球状部を内周面にて回転
自在に支持する内筒と、内筒の軸方向一端側の外周面に
固定された第１弾性体と、内筒の外側を覆うように配置
された外筒と、外筒の軸方向他端側の内周面に固定され
た第２弾性体とを備えてなり、外筒の内部に内筒を軸方
向に挿入し、第１弾性体を外筒の軸方向一端側の内周面
に結合するとともに第２弾性体を内筒の軸方向他端側の
外周面に結合することにより、第１弾性体及び第２弾性
体間に液体が封入された液室を形成したので、第１、第
２弾性体を一部材で構成した場合に比べて、軸方向及び
半径方向のばね特性を細かく調整することが容易である
ばかりか、液室の断面形状を任意に設定することも容易
である。As described above, according to the first aspect of the present invention, the inner cylinder for rotatably supporting the spherical portion formed on the support shaft on the inner peripheral surface, and one end in the axial direction of the inner cylinder. A first elastic body fixed to the outer peripheral surface on the side, an outer cylinder arranged to cover the outer side of the inner cylinder, and a second elastic body fixed to the inner peripheral surface on the other axial side of the outer cylinder. The inner cylinder is inserted into the outer cylinder in the axial direction, the first elastic body is connected to the inner peripheral surface at one end in the axial direction of the outer cylinder, and the second elastic body is axially inserted into the outer cylinder. Since the liquid chamber in which the liquid is sealed is formed between the first elastic body and the second elastic body by being connected to the outer peripheral surface on the end side, compared with the case where the first and second elastic bodies are formed by one member. In addition, it is easy to finely adjust the spring characteristics in the axial direction and the radial direction, and it is also easy to arbitrarily set the sectional shape of the liquid chamber.
【００４４】また請求項２に記載された発明によれば、
支持軸に形成された球状部を内周面にて回転自在に支持
する内筒と、内筒の軸方向一端側の外周面にに固定され
た第１弾性体と、軸方向一端側の内周面が第１弾性体に
固定された外筒と、外筒の内部に軸方向に挿入されて内
筒の軸方向他端側の外周面及び外筒の軸方向他端側の内
周面に固定される第２弾性体と、第１弾性体及び第２弾
性体間に形成されて液体が封入された液室とを備えたこ
とにより、第１、第２弾性体を一部材で構成した場合に
比べて、軸方向及び半径方向のばね特性を細かく調整す
ることが容易であるばかりか、液室の断面形状を任意に
設定することも容易である。According to the second aspect of the present invention,
An inner cylinder rotatably supporting the spherical portion formed on the support shaft on the inner peripheral surface, a first elastic body fixed to the outer peripheral surface at one axial end of the inner cylinder, An outer cylinder having a peripheral surface fixed to the first elastic body, an outer peripheral surface at the other axial end of the inner cylinder inserted axially into the outer cylinder, and an inner peripheral surface at the other axial end of the outer cylinder The first and second elastic members are formed as one member by providing a second elastic member fixed to the first elastic member and a liquid chamber formed between the first elastic member and the second elastic member and filled with a liquid. As compared with the case where it is performed, it is easy to finely adjust the spring characteristics in the axial direction and the radial direction, and it is also easy to arbitrarily set the sectional shape of the liquid chamber.
【００４５】また請求項３に記載された発明によれば、
第１弾性体及び第２弾性体を一体に組み付ける前に、そ
れら第１弾性体及び第２弾性体の少なくとも一方の圧縮
方向の予荷重を加えたことにより、荷重の入力により第
１弾性体及び第２弾性体が変形した際の耐久性が高めら
れる。According to the third aspect of the present invention,
Before assembling the first elastic body and the second elastic body together, a preload in at least one of the compression direction of the first elastic body and the second elastic body is applied, so that the first elastic body and the second elastic body are input by the input of the load. The durability when the second elastic body is deformed is enhanced.
【００４６】また請求項４に記載された発明によれば、
外筒と第１弾性体との間に半径方向のクリアランスを形
成し、第１弾性体の外周に外筒を組み付けた後に外筒を
半径方向内側に絞り加工して前記クリアランスを消滅さ
せるので、組立時に外筒と第１弾性体との干渉を防止し
て組立作業を効率化することができる。また液中で組立
を行う場合には、液室内の余剰の液体をクリアランスを
通して排出することができる。According to the invention described in claim 4,
Since a radial clearance is formed between the outer cylinder and the first elastic body, and after the outer cylinder is assembled on the outer periphery of the first elastic body, the outer cylinder is drawn radially inward to eliminate the clearance. At the time of assembling, interference between the outer cylinder and the first elastic body can be prevented, and the assembling work can be made more efficient. Also, when assembling in a liquid, excess liquid in the liquid chamber can be discharged through the clearance.
【００４７】また請求項５に記載された発明によれば、
外筒を支持部材に軸方向に圧入する荷重を受ける平坦な
荷重受け面を備えたことにより、液体封入ブッシュを圧
入により支持部材に固定する際に、その圧入荷重を受け
止めて確実な圧入を行うことができる。According to the invention described in claim 5,
By providing a flat load receiving surface for receiving a load for press-fitting the outer cylinder to the support member in the axial direction, when the liquid sealing bush is fixed to the support member by press-fitting, the press-fitting load is received and reliable press-fitting is performed. be able to.
【図面の簡単な説明】[Brief description of the drawings]
【図１】液体封入ブッシュを用いたフロントサスペンシ
ョンの斜視図FIG. 1 is a perspective view of a front suspension using a liquid-filled bush.
【図２】図１の２−２線拡大断面図FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG. 1;
【図３】液体封入ブッシュの組立工程を示す図FIG. 3 is a view showing an assembling process of a liquid sealing bush;
【図４】液体封入ブッシュの支持部材への圧入工程を示
す図FIG. 4 is a diagram showing a step of press-fitting a liquid-encapsulated bush into a support member.
【図５】液体封入ブッシュの特性を示す図FIG. 5 is a view showing characteristics of a liquid sealing bush.
【図６】第１実施例の第１の変形例を示す図FIG. 6 is a diagram showing a first modification of the first embodiment;
【図７】第１実施例の第２の変形例を示す図FIG. 7 is a diagram showing a second modification of the first embodiment;
【図８】第２実施例に係る、前記図２に対応する図FIG. 8 is a view corresponding to FIG. 2 according to a second embodiment.
【図９】第２実施例の液体封入ブッシュの組立工程を示
す図FIG. 9 is a view showing an assembling process of a liquid sealing bush according to a second embodiment.
【図１０】第３実施例に係る、前記図２に対応する図FIG. 10 is a view corresponding to FIG. 2 according to a third embodiment.
【図１１】第３実施例の液体封入ブッシュの組立工程を
示す図FIG. 11 is a diagram showing an assembling process of the liquid sealing bush of the third embodiment.
【図１２】第４実施例に係る液体封入ブッシュの組立工
程を示す図FIG. 12 is a view showing an assembling process of a liquid sealing bush according to a fourth embodiment.
【図１３】第５実施例に係る液体封入ブッシュの組立工
程を示す図FIG. 13 is a view showing an assembling process of a liquid sealing bush according to a fifth embodiment.
【図１４】第５実施例に係る液体封入ブッシュの組立工
程を示す図FIG. 14 is a diagram showing an assembling process of a liquid sealing bush according to a fifth embodiment.
７ 支持部材 １１ 支持軸 １１2 球状部 １２ 内筒 １５ 第１ブッシュゴム（第１弾性体） １６1 フランジ（荷重受け面） １８ 外筒 １７ 第２ブッシュゴム（第２弾性体） ２１ 液室 α クリアランスReference Signs List 7 support member 11 support shaft 11 2 spherical portion 12 inner cylinder 15 first bush rubber (first elastic body) 16 1 flange (load receiving surface) 18 outer cylinder 17 second bush rubber (second elastic body) 21 liquid chamber α clearance
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山崎 勝 横浜市鶴見区尻手２丁目３番６号 北辰工 業株式会社内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Masaru Yamazaki 2-3-6, Shirite, Tsurumi-ku, Yokohama-shi
Claims (5)
１2 ）を内周面にて回転自在に支持する内筒（１２）
と、 内筒（１２）の軸方向一端側の外周面に固定された第１
弾性体（１５）と、 内筒（１２）の外側を覆うように配置された外筒（１
８）と、 外筒（１８）の軸方向他端側の内周面に固定された第２
弾性体（１７）と、を備えてなり、外筒（１８）の内部
に内筒（１２）を軸方向に挿入し、第１弾性体（１５）
を外筒（１８）の軸方向一端側の内周面に結合するとと
もに第２弾性体（１７）を内筒（１２）の軸方向他端側
の外周面に結合することにより、第１弾性体（１５）及
び第２弾性体（１７）間に液体が封入された液室（２
１）を形成したことを特徴とする液体封入ブッシュ。1. A spherical part (1) formed on a support shaft (11).
Inner cylinder (12) that rotatably supports 1 2 ) on the inner peripheral surface
And a first fixed to the outer peripheral surface at one end in the axial direction of the inner cylinder (12).
An elastic body (15) and an outer cylinder (1) arranged to cover the outside of the inner cylinder (12).
8) and a second fixed to the inner peripheral surface on the other axial side of the outer cylinder (18).
And an elastic body (17), wherein the inner cylinder (12) is inserted into the outer cylinder (18) in the axial direction, and the first elastic body (15) is provided.
Is connected to the inner peripheral surface at one end in the axial direction of the outer cylinder (18), and the second elastic body (17) is connected to the outer peripheral surface at the other end in the axial direction of the inner cylinder (12). A liquid chamber (2) in which a liquid is sealed between the body (15) and the second elastic body (17)
A liquid-filled bush characterized by forming 1).
１2 ）を内周面にて回転自在に支持する内筒（１２）
と、 内筒（１２）の軸方向一端側の外周面に固定された第１
弾性体（１５）と、 軸方向一端側の内周面が第１弾性体（１５）に固定され
た外筒（１８）と、 外筒（１８）の内部に軸方向に挿入されて内筒（１２）
の軸方向他端側の外周面及び外筒（１８）の軸方向他端
側の内周面に固定される第２弾性体（１７）と、 第１弾性体（１５）及び第２弾性体（１７）間に形成さ
れて液体が封入された液室（２１）と、を備えたことを
特徴とする液体封入ブッシュ。2. A spherical portion (1) formed on a support shaft (11).
Inner cylinder (12) that rotatably supports 1 2 ) on the inner peripheral surface
And a first fixed to the outer peripheral surface at one end in the axial direction of the inner cylinder (12).
An elastic body (15); an outer cylinder (18) having an inner circumferential surface at one axial end fixed to the first elastic body (15); and an inner cylinder inserted axially into the outer cylinder (18). (12)
A second elastic body (17) fixed to the outer peripheral surface at the other axial end of the outer cylinder and the inner peripheral surface at the other axial end of the outer cylinder (18); a first elastic body (15) and a second elastic body (17) A liquid-filled bush, comprising: a liquid chamber (21) formed between the liquid chambers and filled therein.
７）を一体に組み付ける前に、それら第１弾性体（１
５）及び第２弾性体（１７）の少なくとも一方に圧縮方
向の予荷重を加えたことを特徴とする、請求項１又は２
に記載の液体封入ブッシュ。3. A first elastic body (15) and a second elastic body (1).
Before assembling the first elastic members (7) together,
The preload in the compression direction is applied to at least one of the fifth and second elastic bodies (17).
A liquid-filled bush according to item 1.
クリアランス（α）を介して外筒（１８）を組み付けた
後に、外筒（１８）を半径方向内側に絞り加工して前記
クリアランス（α）を消滅させることを特徴とする、請
求項１又は２に記載の液体封入ブッシュ。4. After assembling the outer cylinder (18) to the outer periphery of the first elastic body (15) via a radial clearance (α), the outer cylinder (18) is drawn inward in the radial direction. The liquid-filled bush according to claim 1 or 2, wherein the clearance (α) is eliminated.
に圧入する荷重を受ける平坦な荷重受け面（１６1 ）を
備えたことを特徴とする、請求項１又は２に記載の液体
封入ブッシュ。5. A flat load receiving surface (16 1 ) for receiving a load for press-fitting an outer cylinder (18) into a support member (7) in an axial direction. Liquid filled bush.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14660997A JPH10331905A (en) | 1997-06-04 | 1997-06-04 | Liquid enclosing bush |
| US09/089,400 US6273406B1 (en) | 1997-06-04 | 1998-06-03 | Liquid-encapsulated bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14660997A JPH10331905A (en) | 1997-06-04 | 1997-06-04 | Liquid enclosing bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10331905A true JPH10331905A (en) | 1998-12-15 |
Family
ID=15411610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14660997A Pending JPH10331905A (en) | 1997-06-04 | 1997-06-04 | Liquid enclosing bush |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10331905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2817007A1 (en) * | 2000-11-17 | 2002-05-24 | Mannesmann Boge Gmbh | RUBBER SUPPORT WITH HYDRAULIC DAMPING |
-
1997
- 1997-06-04 JP JP14660997A patent/JPH10331905A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2817007A1 (en) * | 2000-11-17 | 2002-05-24 | Mannesmann Boge Gmbh | RUBBER SUPPORT WITH HYDRAULIC DAMPING |
| DE10057191A1 (en) * | 2000-11-17 | 2002-05-29 | Mannesmann Boge Gmbh | Hydraulically damping rubber bearing |
| DE10057191B4 (en) * | 2000-11-17 | 2005-08-25 | Zf Boge Elastmetall Gmbh | Hydraulically damping rubber mount |
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