JPH01108434A - Bushing charged with liquid - Google Patents
Bushing charged with liquidInfo
- Publication number
- JPH01108434A JPH01108434A JP26671587A JP26671587A JPH01108434A JP H01108434 A JPH01108434 A JP H01108434A JP 26671587 A JP26671587 A JP 26671587A JP 26671587 A JP26671587 A JP 26671587A JP H01108434 A JPH01108434 A JP H01108434A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- outer cylinder
- inner cylinder
- pockets
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 238000013016 damping Methods 0.000 abstract description 3
- 239000012858 resilient material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業との利用分野〉
本発明は自動車等の振動、車内ｇｌ音１乗り心地等を改
善するために、車軸懸架や差動懸架へ用いられる液体封
入ブツシュの改良に関する。[Detailed Description of the Invention] <Field of Industrial Application> The present invention relates to improvements in liquid-filled bushings used in axle suspensions and differential suspensions in order to improve vibrations in automobiles, interior noise, ride comfort, etc. .
〈従来の技術〉
液体封入ブツシュは、内筒と外筒間に弾性体層のみが設
けられている弾性体ブツシュに比べて接衝機能に優れて
いるため、自動車等に多く用いられるようになっている
。その４９ｆｉ告は、概ね、内筒と同心又は偏心状態に
配置した外筒との間に窓部を複数個設けた中間筒を配置
し、前記内筒と中間筒及び中間筒と外筒との間に弾性体
を配置し、弾性体の中間筒窓部の位置に凹所を設けて外
筒と凹所との間でポケットを形成し、連通孔（オリツー
イス）により複数のポケットを連通させ、 そのポケッ
ト及び連通孔に非圧縮性流体を封入した構造（例えば特
開昭６１−３１７３６号）のものが多い。<Prior art> Liquid-filled bushings have a superior contact function compared to elastic bushings in which only an elastic layer is provided between the inner cylinder and the outer cylinder, so they have come to be widely used in automobiles and the like. ing. Generally speaking, the 49fi notice arranges an intermediate cylinder with a plurality of windows between an inner cylinder and an outer cylinder arranged concentrically or eccentrically, and connects the inner cylinder and the intermediate cylinder and the intermediate cylinder and the outer cylinder. An elastic body is placed between them, a recess is provided at the position of the intermediate cylinder window of the elastic body, a pocket is formed between the outer cylinder and the recess, and the plurality of pockets are communicated with each other through a communication hole (orientation chair). Many have a structure in which an incompressible fluid is sealed in the pocket and communication hole (for example, Japanese Patent Application Laid-Open No. 61-31736).
このような構造は、衝撃が加わることにより非圧縮性流
体が一方のポケットから他方のポケットへ連通孔を通っ
て移動する際に、減衰作用が生じて目的を達するもので
ある。しがし、過大な衝撃が加わった場合、大きな、変
形が生じることについての対策はなされていない。Such a structure achieves its purpose by creating a damping effect when the incompressible fluid moves from one pocket to the other through the communication holes due to the impact. However, no measures have been taken to prevent large deformation from occurring if an excessive impact is applied.
そこで、この問題を解決するために、従来、ポケット内
で内筒側にストッパーを固定して設けたｆａ造カＱ 案
すレテイル（特１ｊｌ 昭５９ １６４４２８９ ）
−〈発明が解決しようとする問題点〉
しかし、ストッパーを内筒に固定する方法は、形状の複
雑なストッパー金具を必要とし、圧入又は溶接の工程が
必要、となりコストアップの要因となっていた。また、
ストッパーを内筒に固定した場合、内筒とストッパーと
で段差のある部分の弾性体に荷重が作用すると応力集中
が起こり１弾性体部分の耐久性に悪影響を与えていた。Therefore, in order to solve this problem, we have conventionally proposed an FA structure with a stopper fixed to the inner cylinder side inside the pocket.
-<Problems to be solved by the invention> However, the method of fixing the stopper to the inner cylinder requires a stopper metal fitting with a complicated shape, and requires a press-fitting or welding process, which increases costs. . Also,
When the stopper is fixed to the inner cylinder, stress concentration occurs when a load is applied to the elastic body at a portion where there is a step between the inner cylinder and the stopper, which adversely affects the durability of the first elastic body.
更に、従来の液体封入ブツシュは高周波領域（実際問題
となるのは１ｏｏヘルツ以上）では振動伝達率が悪化し
、ブツシュの取付ブラケット等にその領域で共振点が存
在すると不快なノイズ、振動の原因となっていた。Furthermore, the vibration transmission rate of conventional liquid-filled bushings deteriorates in the high frequency range (100 Hz or higher, which is a real problem), and if there is a resonance point in that range on the bushing mounting bracket, it can cause unpleasant noise and vibration. It became.
〈問題点を解決するための手段〉
本発明は上記のような従来の液体封入ブツシュが有して
いた問題点を下記のような構造とすることにより解決し
たのである。<Means for Solving the Problems> The present invention solves the problems of the conventional liquid-filled bushings as described above by providing the following structure.
その構造上の特徴は、内筒（１）と同心又は偏心配置し
た外筒（２）との間に弾性体（５）を配置し１弾性体（
５）に凹所を設けて外筒（２）と凹所との間でポケット
（６）を形成し、連通孔（７）により複数の前記ポケッ
ト（６）間を連通させ、前記ポケット（６）及び連通孔
（７）に非圧縮性流体（８）を封入した構造の弾性体ブ
ツシュにおいて、前記ポケット（６）内に剛性部材（１
１）からなるストッパ手段（１０）を外筒（２）側から
内筒（１）に向けて内筒（１）に対して所定間隔をあけ
てかつ前記弾性体（５）で被覆して設けたことを特徴と
するものである。Its structural feature is that an elastic body (5) is arranged between the inner cylinder (1) and the outer cylinder (2) which is arranged concentrically or eccentrically.
5) is provided with a recess to form a pocket (6) between the outer cylinder (2) and the recess, a plurality of pockets (6) are communicated with each other through a communication hole (7), and a pocket (6) is formed between the outer cylinder (2) and the recess. ) and a communication hole (7) filled with an incompressible fluid (8), the rigid member (1) is provided in the pocket (6).
A stopper means (10) consisting of 1) is provided from the outer cylinder (2) side toward the inner cylinder (1) at a predetermined distance from the inner cylinder (1) and covered with the elastic body (5). It is characterized by:
このような構造の液体封入ブツシュにおけるストッパー
手段（１０）は外筒（２）との間に間隙（１２）を設け
ると、剛性部材（１１）とそれを被覆している弾性体（
５）からなるストッパー手段（１ｏ）が振動可能となり
、これをダイナミックダンパーとして用いることができ
る。また、ストッパー手段（１ｏ）の剛性部材（１１）
は中間筒（３）と一体に成形または固着されたものとす
ると製造上都合が良い。When a gap (12) is provided between the stopper means (10) and the outer tube (2) in the liquid-filled bushing having such a structure, the rigid member (11) and the elastic body (
The stopper means (1o) consisting of 5) can vibrate and can be used as a dynamic damper. Moreover, the rigid member (11) of the stopper means (1o)
It is convenient for manufacturing if it is molded or fixed integrally with the intermediate cylinder (3).
く作用〉
液体封入ブツシュをこのような構造とすることによって
、非圧縮性流体が一方のポケットから他方の゛ポケット
へ連通孔を通って移動する際に、減衰作用が生じて目的
を達する上に、過大な衝撃が加わった場合にストッパ手
段が必要以上の変位を防止する。By structuring the liquid-filled bushing in this way, when the incompressible fluid moves from one pocket to the other through the communication hole, a damping effect occurs, which helps to achieve the purpose. , the stopper means prevents more displacement than necessary when an excessive impact is applied.
このような基本的な作用に加えて、ストツバ−手段（１
０）の剛性部材（１１）を中間筒（３）と一体物とする
ことができるので、従来のように複雑な内筒金具を必要
とせず、簡単な工程で得られる金具め使用が可能となる
。また、内筒（１）金具に段差等が無いので応力の集中
等が生じない、そこで、弾性体（５）の耐久性が増す、
。In addition to these basic functions, the stop bar means (1
Since the rigid member (11) of 0) can be integrated with the intermediate cylinder (3), there is no need for a complicated inner cylinder metal fitting as in the past, and it is possible to use a metal fitting that can be obtained through a simple process. Become. In addition, since there are no steps or the like on the inner cylinder (1) metal fitting, stress concentration does not occur, which increases the durability of the elastic body (5).
.
〈実施例〉 以下図面によって本発明の実施例を詳細に説明する。<Example> Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図〜第３図は本発明の第１実施例を示すもので、第
１図は外筒未装着状態の第２図中Ｂ−Ｂ’相当断面図で
あり、第２図は正面図、第３図は外筒装着状態の第１図
中＾−Ａ′相当断面図である。1 to 3 show a first embodiment of the present invention, and FIG. 1 is a sectional view corresponding to BB' in FIG. 2 with the outer cylinder not installed, and FIG. 2 is a front view. , FIG. 3 is a sectional view corresponding to ^-A' in FIG. 1 with the outer cylinder attached.
これらの図によって明らかなように、この液体封入ブツ
シュは内筒（ｌ）と同心状態に配置した外筒（２）との
間に窓部を複数個設けた中間筒（３）を配置し、 前記
内筒（１）と中間筒（３）及び中間筒（３）と外筒（２
）との間に弾性体′（５）を配置し、弾性体（５）の中
間筒窓部（４）の位置に凹所を設けて外筒（２）と凹所
との間でポケット（６）を形成し、中間筒（３）の外周
に固着した弾性体（５）層にオリフィス用溝部（９）を
設けて連通孔（７）として複数のボケッＩ−（Ｇ）を連
通させ、前記ポケット（６）及び連通孔（７）に非圧縮
性流体（８）を封入している。As is clear from these figures, this liquid-filled bushing has an intermediate cylinder (3) with a plurality of windows arranged between an inner cylinder (l) and an outer cylinder (2) arranged concentrically, The inner cylinder (1) and the intermediate cylinder (3) and the intermediate cylinder (3) and the outer cylinder (2)
), and a recess is provided at the intermediate cylinder window (4) of the elastic body (5), and a pocket ( 6), and an orifice groove (9) is provided in the elastic body (5) layer fixed to the outer periphery of the intermediate cylinder (3) to communicate the plurality of holes I-(G) as communication holes (7). An incompressible fluid (8) is sealed in the pocket (6) and the communication hole (7).
更に、前゛記ボケッ１−（６）内に弾性体（５）で被覆
された剛性部材（１１）からなるストッパ手段（１０）
を内筒（１）との間に所定間隔を有するよう、すなわち
所定間隙のポケット（流体室）（６）が確保されるよう
に外筒（２）側から設けている。 この場合、剛性部材
（１１）の外側は外筒（２）に接している。Furthermore, a stopper means (10) consisting of a rigid member (11) covered with an elastic body (5) is provided in the aforementioned pocket 1-(6).
are provided from the outer cylinder (2) side so as to have a predetermined interval between them and the inner cylinder (1), that is, to ensure a pocket (fluid chamber) (6) with a predetermined gap. In this case, the outside of the rigid member (11) is in contact with the outer tube (2).
第４図及び第５図は本発明の第２実施例を示しており、
第４図は中央縦断面図であり、第５図は第４図中ｃ−ｃ
’相当断面図である。 この液体封入ブツシュの例は１
弾性体（５）で被覆された剛性部材（１１）からなるス
トッパー手段（１０）が外筒（２）との間に間隙（１２
）を有した状態に設けられていることを特徴としている
。この間隙（１２）は振幅確保に充分な通常１〜２ｍ程
度である。4 and 5 show a second embodiment of the present invention,
Fig. 4 is a central vertical sectional view, and Fig. 5 is c-c in Fig. 4.
'This is an equivalent cross-sectional view. An example of this liquid-filled bushing is 1
A stopper means (10) consisting of a rigid member (11) covered with an elastic body (5) has a gap (12) between it and the outer cylinder (2).
). This gap (12) is usually about 1 to 2 m, which is sufficient to ensure amplitude.
第６図〜第８図は本発明の第３実施例を示しており、第
６図は第２実施例における第５図相当断面図であり、第
７図は本実施例の中間筒のみの平面図であり、第８図は
第７図中Ｄ−Ｄ断面図である。6 to 8 show a third embodiment of the present invention, FIG. 6 is a sectional view corresponding to FIG. 5 in the second embodiment, and FIG. 7 is a sectional view of only the intermediate cylinder of the present embodiment. It is a plan view, and FIG. 8 is a sectional view taken along line DD in FIG. 7.
この液体封入ブツシュは、ストッパー手段（１０）の剛
性部材（１１）が中間筒（３）と一体に形成されている
ことを特徴とするものである。すなわち、流体室のポケ
ット（６）に外周側からストッパー手段（１０）が突出
している位置（２個所）の中間筒（３）に。This liquid-filled bushing is characterized in that the rigid member (11) of the stopper means (10) is formed integrally with the intermediate cylinder (3). That is, in the intermediate cylinder (3) at the positions (two locations) where the stopper means (10) protrudes from the outer peripheral side into the pocket (6) of the fluid chamber.
剛性部材（１１）として突起が形成されている。この剛
性部材（１１）を形成している中間筒（３）はプラスチ
ックが部品点数を減してコスＩ−ダウンを可能とするの
で好ましい。A protrusion is formed as the rigid member (11). The intermediate cylinder (3) forming the rigid member (11) is preferably made of plastic because it reduces the number of parts and enables cost reduction.
〈発明の効果〉
本発明の液体封入ブツシュは以上のような構造であるか
ら、次に示すような特徴を有している。<Effects of the Invention> Since the liquid-filled bushing of the present invention has the above structure, it has the following characteristics.
■ス１−ツバ一部材（多くの場合金属）を内筒に溶接ま
たは圧入等の方法で固定する従来の場合に比べ、弾性体
層をモールドすると同時にストッパー手段を形成できる
ので、工数を少なくし、コノ、トダウンすることができ
る。■Compared to the conventional method of fixing the collar member (often metal) to the inner cylinder by welding or press-fitting, the stopper means can be formed at the same time as molding the elastic layer, reducing man-hours. , Kono, can be down.
■外筒との間に間隙を設けた本発明の実施態様によると
、高周波領域（１００ヘルツ以上）でブラケソ１へ等の
取付部材に共振点が存在する場合、ダイナミックダンパ
ーの共振周波数をチューニングすることで不快なノイズ
、振動を改善することができる。■According to the embodiment of the present invention in which a gap is provided between the outer cylinder and the outer cylinder, if there is a resonance point in the attachment member such as to the bracket 1 in a high frequency region (100 Hz or more), the resonance frequency of the dynamic damper is tuned. This can improve unpleasant noise and vibration.
■更に、中間筒とストッパー手段とが一体化された実施
例の構造においては、部品点数を減らしコス１へダウン
を可能とした。これは特に、素材にプラスチックを用い
モールド成形すれば、その効果が更に大きくなる。(2) Furthermore, in the structure of the embodiment in which the intermediate cylinder and the stopper means are integrated, the number of parts can be reduced and the cost can be reduced to 1. This effect becomes even greater especially if plastic is used as the material and molded.
第１図〜第３図は本発明の第１実施例を示すもので、第
１図は外筒未装着状態の第２図中Ｂ −Ｂ″相当断面図
であり、第２図は正面図、第３図は外筒装着状態の第１
図中入−Δ′相当断面図である。
第４図及び第５図は本発明の第２実施例を示しており、
第４図は中央縦断面図であり、第５図は第４図中ｃ−ｃ
’相当断面図である。第６図〜第８図は本発明の第３実
施例を示しており、第６図は第２実施例における第５図
相当断面図であり、第７図は中間筒のみの平面図であり
、第８ＩｖＩは第７図中Ｄ−Ｄ断面図である。
（１）内筒 （２）外筒
（３）中間筒 （４）中間筒窓部（５）弾性
体 （６）ポケット（７）連通孔
（８）非圧縮性流体（９）オリフィス用溝部 （１０
）ストッパ手段（１１）剛性部材 （１２）間隙
第１輿
連通孔１（９）
第２回
第５図
’／（９）
第７図
第８図1 to 3 show a first embodiment of the present invention, and FIG. 1 is a sectional view corresponding to B-B'' in FIG. 2 with the outer cylinder not installed, and FIG. 2 is a front view. , Figure 3 shows the first part with the outer cylinder attached.
It is a sectional view corresponding to -Δ' in the figure. 4 and 5 show a second embodiment of the present invention,
Fig. 4 is a central vertical sectional view, and Fig. 5 is c-c in Fig. 4.
'This is an equivalent cross-sectional view. 6 to 8 show a third embodiment of the present invention, FIG. 6 is a sectional view corresponding to FIG. 5 in the second embodiment, and FIG. 7 is a plan view of only the intermediate cylinder. , No. 8 IvI is a sectional view taken along line DD in FIG. (1) Inner cylinder (2) Outer cylinder (3) Intermediate cylinder (4) Intermediate cylinder window (5) Elastic body (6) Pocket (7) Communication hole
(8) Incompressible fluid (9) Orifice groove (10
) Stopper means (11) Rigid member (12) Gap first communication hole 1 (9) 2nd Fig. 5'/(9) Fig. 7 Fig. 8
Claims (1)
間に弾性体（５）を配置し、弾性体（５）に凹所を設け
て外筒（２）と凹所との間でポケット（６）を形成し、
連通孔（７）により複数の前記ポケット（６）間を連通
させ、前記ポケット（６）及び連通孔（７）に非圧縮性
流体（８）を封入してなる弾性体ブッシュにおいて、前
記ポケット（６）内に剛性部材（１１）からなるストッ
パ手段（１０）を外筒（２）側から内筒（１）に向けて
該内筒（１）に対して所定間隔をあけてかつ前記弾性体
（５）で被覆して設けたことを特徴とする液体封入ブッ
シュ。 ２ ストッパー手段（１０）は外筒（２）との間に間隙
（１２）を有してなる特許請求の範囲第１項記載の液体
封入ブッシュ。 ３ ストッパー手段（１０）の剛性部材（１１）は中間
筒（３）と一体である特許請求の範囲第１項又は第２項
記載の液体封入ブッシュ。[Claims] 1. An elastic body (5) is arranged between the inner cylinder (1) and an outer cylinder (2) which is arranged concentrically or eccentrically, and a recess is provided in the elastic body (5) to form the outer cylinder ( 2) and the recess to form a pocket (6);
In the elastic bushing, the plurality of pockets (6) are communicated with each other by communication holes (7), and an incompressible fluid (8) is sealed in the pockets (6) and the communication holes (7). 6) A stopper means (10) made of a rigid member (11) is placed inside the outer cylinder (2) toward the inner cylinder (1) at a predetermined distance from the inner cylinder (1), and the elastic member A liquid-filled bush characterized by being coated with (5). 2. The liquid-filled bushing according to claim 1, wherein the stopper means (10) has a gap (12) between it and the outer cylinder (2). 3. The liquid-filled bushing according to claim 1 or 2, wherein the rigid member (11) of the stopper means (10) is integral with the intermediate cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26671587A JPH01108434A (en) | 1987-10-21 | 1987-10-21 | Bushing charged with liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26671587A JPH01108434A (en) | 1987-10-21 | 1987-10-21 | Bushing charged with liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01108434A true JPH01108434A (en) | 1989-04-25 |
Family
ID=17434674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26671587A Pending JPH01108434A (en) | 1987-10-21 | 1987-10-21 | Bushing charged with liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01108434A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990006455A1 (en) * | 1988-11-30 | 1990-06-14 | Tokai Rubber Industries, Ltd. | Fluid seal type cylindrical mount apparatus |
| US20150192189A1 (en) * | 2012-07-19 | 2015-07-09 | Anvis Deutschland Gmbh | Spring functional component for a hydroelastic bearing and a hydroelastic bearing |
-
1987
- 1987-10-21 JP JP26671587A patent/JPH01108434A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990006455A1 (en) * | 1988-11-30 | 1990-06-14 | Tokai Rubber Industries, Ltd. | Fluid seal type cylindrical mount apparatus |
| US20150192189A1 (en) * | 2012-07-19 | 2015-07-09 | Anvis Deutschland Gmbh | Spring functional component for a hydroelastic bearing and a hydroelastic bearing |
| US10054188B2 (en) * | 2012-07-19 | 2018-08-21 | Anvis Deutschland Gmbh | Spring functional component for a hydroelastic bearing and a hydroelastic bearing |
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