JPS62184250A - Liquid-filled bush - Google Patents
Liquid-filled bushInfo
- Publication number
- JPS62184250A JPS62184250A JP2626786A JP2626786A JPS62184250A JP S62184250 A JPS62184250 A JP S62184250A JP 2626786 A JP2626786 A JP 2626786A JP 2626786 A JP2626786 A JP 2626786A JP S62184250 A JPS62184250 A JP S62184250A
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- elastic member
- liquid
- liquid chambers
- ring
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 7
- 238000013016 damping Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 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
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は自動車、各種産業機械、その他に使用して有効
に防振性能を発揮する流体入りブツシュに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a fluid-filled bushing that is used in automobiles, various industrial machines, and others to effectively exhibit vibration damping performance.
〈従来の技術〉
流体入りブツシュは同心に配置した内筒及び外筒間に弾
性部材を備え、この弾性部材の軸線方向の中央部でその
周方向に所定間隔をおいて複数の液室と、１１接する液
室間を相互に連通させるオリフィスとを備えているもの
が一般的である。<Prior Art> A fluid-filled bushing includes an elastic member between an inner cylinder and an outer cylinder arranged concentrically, and a plurality of liquid chambers spaced at predetermined intervals in the circumferential direction in the center of the elastic member in the axial direction. 11 and an orifice that allows mutual communication between adjacent liquid chambers.
このオリフィスの設は方辷も従来種々の提案がなされて
いる。例えば、■外筒に連通孔を設けてブツシュの外周
で連通させたもの（特開昭５６−１６４２４２号）、■
内筒外周に溝を設けて連通構造としたもの（特開昭５８
−２０３２４２号）、■内筒に設けられたストッパ一部
材へ絞り通路を設けたもの（特開昭６０−２１５１３２
号）等である。Various proposals have been made in the past regarding the configuration of this orifice. For example, ■ one in which a communication hole is provided in the outer cylinder and communicated with the outer periphery of the bush (Japanese Patent Application Laid-open No. 164242/1982);
A groove is provided on the outer periphery of the inner cylinder to create a communication structure (Japanese Patent Laid-Open No. 58
-203242), ■ A stopper provided in the inner cylinder with a throttle passage provided (Japanese Patent Laid-Open No. 60-215132)
No.) etc.
〈発明が解決しようとする問題点〉
しかし、前記■に示したように外筒側へオリフィスを設
けると、製造時にオリフィスが変形したり、液室内に発
生又は含まれていた気泡が通過することがあり、防振性
能に悪影響を与える場合が指摘されている。オリフィス
断面積の変動が防振性能に与える影響について、第１４
図に示した６図にみられるように、断面積が小さくなる
につれて、ロスファクター（ｔ、ａｎδ）が下り、防振
性能が悪くなる。<Problems to be Solved by the Invention> However, if the orifice is provided on the outer cylinder side as shown in (■) above, the orifice may be deformed during manufacturing, or air bubbles generated or contained in the liquid chamber may pass through. It has been pointed out that this may have a negative impact on vibration isolation performance. Regarding the influence of fluctuations in orifice cross-sectional area on vibration isolation performance, Part 14
As shown in FIG. 6, as the cross-sectional area becomes smaller, the loss factor (t, an δ) decreases, and the vibration damping performance deteriorates.
■のように内筒ヘオリフィスを設けると、その径や長さ
く経路）を十分にとることができないため、防振性能を
十分に発揮することができない難点があった。When an inner cylinder helioorifice is provided as shown in (2), it is not possible to provide a sufficient diameter, length, and path, and therefore there is a problem in that the vibration damping performance cannot be fully demonstrated.
また、■のように、ストッパー内へオリフィスを設ける
と、やはりその長さを十分に長くすることができない」
二に、加工コストが掛る欠点かぁ−）た。Also, if an orifice is provided inside the stopper as shown in ■, the length cannot be made sufficiently long.
Second, there is the drawback of high processing costs.
く問題点を解決するための手段〉
そこで、本発明においては、同心配置した内筒（１）及
び外筒（２）と、これらの内外筒間に設けた弾性部材（
３）と、 この弾性部材の軸線方向の中央部でその周方
向に所定間隔をおいて設けた複数の液室（４）と、液室
を相互に連通させるオリフィス（５）を備えてなる弾性
ブツシュにおいて、そのオリフィスを前記弾性部材（３
）で支持されたリング状部材（７）で構成した。Means for Solving the Problems> Therefore, in the present invention, the inner cylinder (1) and the outer cylinder (2) are arranged concentrically, and the elastic member (
3), a plurality of liquid chambers (4) provided at a predetermined interval in the circumferential direction in the central part of the elastic member in the axial direction, and an orifice (5) for communicating the liquid chambers with each other. In the bush, the orifice is connected to the elastic member (3).
) is supported by a ring-shaped member (7).
〈作用〉
このような構造の流体入りブツシュは、弾性部材に支持
されたリング状部材からなるオリフィスであるので、外
筒のカシメ加工、絞り加」一番一全く↓饗されず、 か
つ、必要に応じた十分な大きさ。<Function> Since a fluid-filled bushing with such a structure is an orifice made of a ring-shaped member supported by an elastic member, caulking and drawing of the outer cylinder are not performed at all, and are necessary. Large enough according to.
長さとすることができ、しかも、液室内の気泡の通過を
有効に防止する作用をする。In addition, it can effectively prevent air bubbles from passing through the liquid chamber.
〈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図及び第２図は本発明の第１実施例を示している。1 and 2 show a first embodiment of the invention.
第１図は中央縦断面図であり、第２図は第１図中Ａ−Ａ
断面図である。ここに示した実施例の流体入りブツシュ
は、内筒（１）及び外筒（２）がこれらの内外筒間に設
けた弾性部材（３）によって同心に配置されている。こ
の弾性部材の軸線方向の中央部でその周方向には対向位
置に液室（４）（／Ｉ）が設けられている。そして、液
室（４）と液室（４）間を相互に連通させるためのリン
グ状部材（７）が１弾性部材（３）によって内外筒（１
）（２）間の中間部分へ同心に支持されている。この場
合、オリフィス（５）は矩形断面を有したリング状部材
（７）内へ形成されており、液室（４）内へ位置するよ
うにオリフィス口（６）が設けられている。液室（４）
内ではオリフィス（５）を形成しているリング状部材（
７）は弾性部材（３）と離れて浮いた状態にある。Figure 1 is a central vertical cross-sectional view, and Figure 2 is A-A in Figure 1.
FIG. In the fluid-filled bushing of the embodiment shown here, an inner cylinder (1) and an outer cylinder (2) are arranged concentrically by an elastic member (3) provided between the inner and outer cylinders. A liquid chamber (4) (/I) is provided at a central portion of the elastic member in the axial direction and at a position facing the elastic member in the circumferential direction. Then, a ring-shaped member (7) for mutually communicating between the liquid chambers (4) and the inner and outer cylinders (1) is connected by one elastic member (3).
) (2) are supported concentrically to the intermediate portion between them. In this case, the orifice (5) is formed in a ring-shaped member (7) having a rectangular cross section, and an orifice opening (6) is provided so as to be located in the liquid chamber (4). Liquid chamber (4)
Inside there is a ring-shaped member (
7) is in a floating state apart from the elastic member (3).
オリフィス（５）はリング状部材（７）によって、第３
図及び第４図に示したように、内外筒（１）（２）間で
仮に偏心しても、 Ｙ−Ｙ’力方向バネ定数に影響し難
いので、製作精度をあまり必要としない利点がある。ま
た、図にみられるようにオリフィスが形成されているリ
ング状部材（７）の幅を広げると、Ｘ方向に対するＹ方
向のバネ定数をあげることができる。The orifice (5) is connected to the third
As shown in Figures and Figure 4, even if there is eccentricity between the inner and outer cylinders (1) and (2), it will hardly affect the spring constant in the Y-Y' force direction, so there is an advantage that manufacturing precision is not required. . Further, as shown in the figure, by widening the width of the ring-shaped member (7) in which the orifice is formed, the spring constant in the Y direction relative to the X direction can be increased.
第５図及び第６図に示したのは１本発明の第３実施例で
あって、第５図は中央縦断面図であり、第６図は第５図
中Ｃ−Ｃ断面図である。この例では、これまでの例と異
なり、液室（４）内においてもオリフィス（５）を形成
しているリング状部材（７）と内筒（１）との間に弾性
部材（３）を充満させている。このような構造であると
、液室（４）内におけるリング状部材（７）及び弾性部
材（３）が過大荷重時のストッパーの役目をする。5 and 6 show a third embodiment of the present invention, in which FIG. 5 is a longitudinal cross-sectional view at the center, and FIG. 6 is a cross-sectional view taken along the line CC in FIG. . In this example, unlike the previous examples, an elastic member (3) is placed between the ring-shaped member (7) forming the orifice (5) and the inner cylinder (1) even in the liquid chamber (4). It's filling up. With this structure, the ring-shaped member (7) and the elastic member (3) in the liquid chamber (4) serve as a stopper in the event of an excessive load.
第７図及び第８図に本発明の第４実施例を示している。A fourth embodiment of the present invention is shown in FIGS. 7 and 8.
第７図は中央縦断面図であり、第８図は第７図中Ｄ−Ｄ
断面図である。 この例においては、オリフィス（５）
を形成しているリング状部材（７）は弾性部材（３）へ
埋設されており、液室（４）の部分でオリフィス口（６
）の部分を露出させている。そして、更に、 リング状
部材（７）からブツシュの両端に至るまで左右に延長し
たひれ状の剛性板材（８）を設けたのである。 この剛
性板材（８）は流体入りブツシュのバネ定数をコントロ
ールすることができる６すなわち、その面積を増すにつ
れてＸ方向のバネ定数を上げ、Ｘ、Ｙ方向のバネ比を変
えることができる。Figure 7 is a central vertical cross-sectional view, and Figure 8 is a view taken from D-D in Figure 7.
FIG. In this example, the orifice (5)
The ring-shaped member (7) forming the is embedded in the elastic member (3), and the orifice opening (6)
) is exposed. Furthermore, fin-shaped rigid plates (8) extending from the ring-shaped member (7) to both ends of the bushing are provided. This rigid plate material (8) can control the spring constant of the fluid-filled bushing6, that is, as its area increases, the spring constant in the X direction can be increased, and the spring ratio in the X and Y directions can be changed.
上記のように配設されるオリフィス（５）を形成してい
るリング状部材（７）の他の形状例を第９図から第１３
図に示した。第９図及び第１０図は環状体へ中空リング
を取付けた形状のもので、上下方向２個所にオリフィス
口（６） （６）が設けられている。Other examples of the shape of the ring-shaped member (7) forming the orifice (5) arranged as described above are shown in FIGS. 9 to 13.
Shown in the figure. FIGS. 9 and 10 show a shape in which a hollow ring is attached to an annular body, and orifices (6) (6) are provided at two locations in the vertical direction.
第１１図に示したのは管状体の内周側へ管状チャンネル
部材を密着させた形状のものである。この管状チャンネ
ル部材は複数本を平行に密着させた構造や、第１２図の
ように螺旋状に連続して設けて形成することもできる。The one shown in FIG. 11 has a shape in which a tubular channel member is brought into close contact with the inner peripheral side of a tubular body. This tubular channel member can also be formed in a structure in which a plurality of channels are closely connected in parallel, or in a spiral arrangement as shown in FIG. 12.
また、螺旋形状としては、第１３図のような単に管状コ
イルのみを用いてもよい。Furthermore, as the spiral shape, only a tubular coil as shown in FIG. 13 may be used.
これらの第１図〜第１３図に示したリング状部材の組付
けに際しては、内筒との間に嵌める位置決めリングを用
いたり、リング状部材自体の内径を内筒の外径に接近さ
せたものを使用すると好都合である。When assembling the ring-shaped members shown in Figs. 1 to 13, a positioning ring that is fitted between the inner cylinder and the inner diameter of the ring-shaped member itself should be brought close to the outer diameter of the inner cylinder. It is convenient to use something.
〈発明の効果〉
本発明は以上詳述したように、オリフィス（５）を形成
しているリング状部材（７）を弾性部材によって支持し
たので、流体入りブツシュの組立てに全く影響されない
十分な長さと大きさのオリフィスを容易に得ることがで
き、オリフィスへの気泡の通過を有効に防止することが
でき、かつ、オリフィス部がストッパー機能をも果し、
更に、バネ定数に方向性をもたせることもできる。<Effects of the Invention> As detailed above, in the present invention, the ring-shaped member (7) forming the orifice (5) is supported by an elastic member, so that the ring-shaped member (7) forming the orifice (5) has a sufficient length that is not affected at all by the assembly of the fluid-filled bushing. It is possible to easily obtain an orifice of a certain size, and it is possible to effectively prevent air bubbles from passing through the orifice, and the orifice part also functions as a stopper.
Furthermore, it is also possible to give directionality to the spring constant.
第１図及び第２図は本発明の第１実施例を示している。
第１図は中央縦断面図であり、第２図は第１図中＾−Ａ
断面図である。第３図及び第４図は本発明の第２実施例
であって、第３図は中央縦断面図であり、第４図は第３
図中８−１’３断面図である。
第５図及び第６図は本発明の第３実施例であって。
第５図は中央縦断面図であり、第６図は第５図中Ｃ−Ｃ
断面図である。第７図及び第８図は本発明の第４実施例
を示している。第７図は中央縦断面図であり、第８図は
第７図中Ｄ−Ｄ断面図である。第９図〜第１３図はオリ
フィスを形成しているリング状部材の他の形状例を示し
たもので、第９図は縦断面図、第１０図は第９図中Ｅ−
Ｅ断面図である。第１１図〜第１３図は他の形状例の第
１０図相当断面図である。第１４図はオリフィス径を変
えた場合のロスファクター（ｔａｎδ）と振動数（Ｈｚ
）との関係を示すグラフである。
（１）内筒 （２）外筒
（３）弾性部材 （４）液室
（５）オリフィス （６）オリフィス口（７）リ
ング状部材 （８）剛性板材以上1 and 2 show a first embodiment of the invention. Figure 1 is a central vertical cross-sectional view, and Figure 2 is a ^-A in Figure 1.
FIG. 3 and 4 show a second embodiment of the present invention, in which FIG. 3 is a central vertical cross-sectional view, and FIG.
It is a sectional view taken along line 8-1'3 in the figure. 5 and 6 show a third embodiment of the present invention. Figure 5 is a central vertical sectional view, and Figure 6 is a C-C in Figure 5.
FIG. 7 and 8 show a fourth embodiment of the present invention. FIG. 7 is a central longitudinal sectional view, and FIG. 8 is a sectional view taken along line DD in FIG. 9 to 13 show other examples of the shape of the ring-shaped member forming the orifice, FIG. 9 is a longitudinal sectional view, and FIG. 10 is a
It is an E sectional view. 11 to 13 are sectional views corresponding to FIG. 10 of other examples of shapes. Figure 14 shows the loss factor (tanδ) and frequency (Hz) when the orifice diameter is changed.
) is a graph showing the relationship between (1) Inner cylinder (2) Outer cylinder (3) Elastic member (4) Liquid chamber (5) Orifice (6) Orifice opening (7) Ring-shaped member (8) Rigid plate material or more
Claims (1)
の内外筒間に設けた弾性部材（３）と、この弾性部材の
軸線方向の中央部でその周方向に所定間隔をおいて設け
た複数の液室（４）と、少なくとも隣接する液室を相互
に連通させるオリフィス（５）とを備えてなる弾性ブッ
シュにおいて、該オリフィスが前記弾性部材で支持され
たリング状部材（７）で構成されていることを特徴とす
る流体入りブッシュ。1 An inner cylinder (1) and an outer cylinder (2) arranged concentrically, an elastic member (3) provided between these inner and outer cylinders, and a predetermined interval in the circumferential direction at the center of the elastic member in the axial direction. An elastic bush comprising a plurality of liquid chambers (4) and an orifice (5) that allows at least adjacent liquid chambers to communicate with each other. ) A fluid-filled bush characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61026267A JPH0629638B2 (en) | 1986-02-08 | 1986-02-08 | Bush containing fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61026267A JPH0629638B2 (en) | 1986-02-08 | 1986-02-08 | Bush containing fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62184250A true JPS62184250A (en) | 1987-08-12 |
| JPH0629638B2 JPH0629638B2 (en) | 1994-04-20 |
Family
ID=12188495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61026267A Expired - Lifetime JPH0629638B2 (en) | 1986-02-08 | 1986-02-08 | Bush containing fluid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629638B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899997A (en) * | 1988-09-30 | 1990-02-13 | Lord Corporation | Fluid filled resilient bushing |
| US4971456A (en) * | 1988-10-08 | 1990-11-20 | Tokai Rubber Industries, Ltd. | Fluid-filled elastic center bearing mount |
| EP1705399A1 (en) * | 2005-03-21 | 2006-09-27 | Carl Freudenberg KG | Hydraulic support |
| WO2019137646A1 (en) * | 2018-01-11 | 2019-07-18 | Contitech Luftfedersysteme Gmbh | Hydraulic bearing bush |
| CN111587329A (en) * | 2018-01-11 | 2020-08-25 | 康蒂泰克空气弹簧系统有限公司 | Hydraulic bearing bush |
| US11584972B2 (en) | 2017-09-01 | 2023-02-21 | Schwartz Gmbh | Method for heating a metal component to a target temperature and corresponding roller hearth furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS629039A (en) * | 1985-07-04 | 1987-01-17 | Bridgestone Corp | Suspension bush |
| JPS6288834A (en) * | 1985-10-15 | 1987-04-23 | Bridgestone Corp | Vibro-isolator |
| JPS62124333A (en) * | 1985-11-21 | 1987-06-05 | Tokai Rubber Ind Ltd | Fluid sealed-in type bush assembly |
-
1986
- 1986-02-08 JP JP61026267A patent/JPH0629638B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS629039A (en) * | 1985-07-04 | 1987-01-17 | Bridgestone Corp | Suspension bush |
| JPS6288834A (en) * | 1985-10-15 | 1987-04-23 | Bridgestone Corp | Vibro-isolator |
| JPS62124333A (en) * | 1985-11-21 | 1987-06-05 | Tokai Rubber Ind Ltd | Fluid sealed-in type bush assembly |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899997A (en) * | 1988-09-30 | 1990-02-13 | Lord Corporation | Fluid filled resilient bushing |
| US4971456A (en) * | 1988-10-08 | 1990-11-20 | Tokai Rubber Industries, Ltd. | Fluid-filled elastic center bearing mount |
| EP1705399A1 (en) * | 2005-03-21 | 2006-09-27 | Carl Freudenberg KG | Hydraulic support |
| EP1942290A1 (en) * | 2005-03-21 | 2008-07-09 | Carl Freudenberg KG | Hydraulic support |
| EP1944524A1 (en) * | 2005-03-21 | 2008-07-16 | Carl Freudenberg KG | Hydraulic support |
| US11584972B2 (en) | 2017-09-01 | 2023-02-21 | Schwartz Gmbh | Method for heating a metal component to a target temperature and corresponding roller hearth furnace |
| WO2019137646A1 (en) * | 2018-01-11 | 2019-07-18 | Contitech Luftfedersysteme Gmbh | Hydraulic bearing bush |
| CN111566378A (en) * | 2018-01-11 | 2020-08-21 | 康蒂泰克空气弹簧系统有限公司 | Hydraulic bearing bush |
| CN111587329A (en) * | 2018-01-11 | 2020-08-25 | 康蒂泰克空气弹簧系统有限公司 | Hydraulic bearing bush |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0629638B2 (en) | 1994-04-20 |
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