JP2647687B2 - Bush assembly - Google Patents
Bush assemblyInfo
- Publication number
- JP2647687B2 JP2647687B2 JP10525188A JP10525188A JP2647687B2 JP 2647687 B2 JP2647687 B2 JP 2647687B2 JP 10525188 A JP10525188 A JP 10525188A JP 10525188 A JP10525188 A JP 10525188A JP 2647687 B2 JP2647687 B2 JP 2647687B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- cylinder
- fitting
- elastic body
- rubber elastic
- 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.)
- Expired - Lifetime
Links
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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は車両サスペンション等の連結部に使用して好
適なブッシュ組立体に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bush assembly suitable for use in a connecting portion of a vehicle suspension or the like.
＜従来の技術＞ 車両サスペンションの連結部に使用されるブッシュ組
立体は、同心的に配設される内外２つの筒状部材間にゴ
ム材料からなる筒状の弾性部材が介装された構造であ
り、その弾性部材のばね特性によって、主として軸直角
方向の振動を吸収するようになっている。<Prior Art> A bush assembly used for a connecting portion of a vehicle suspension has a structure in which a cylindrical elastic member made of a rubber material is interposed between two inner and outer cylindrical members arranged concentrically. In addition, due to the spring characteristics of the elastic member, vibrations mainly in the direction perpendicular to the axis are absorbed.
しかし、このような構造のブッシュ組立体は、軸直角
方向の剛性を上げると捩り剛性が増加するという難点が
あった。このために、上記筒状部材と弾性部材との間
に、この弾性部材による捩り剛性を低減させるための摺
動部材を介在させることが、例えば、英国特許第1,045,
827号や米国特許第3,331,642号の明細書によって提案さ
れている。However, the bush assembly having such a structure has a problem that increasing the rigidity in the direction perpendicular to the axis increases the torsional rigidity. For this purpose, a sliding member for reducing the torsional rigidity of the elastic member is interposed between the tubular member and the elastic member. For example, British Patent No. 1,045,
No. 827 and U.S. Pat. No. 3,331,642.
このように筒状部材と弾性部材との間に摺動部材を介
在させたブッシュ組立体は、摺動部材によって筒状部材
と弾性部材間の摩擦抵抗が軽減し、筒状部材と弾性部材
は容易な相互の回転が可能となるから、軸直角方向の剛
性を保持すると共に軸回転方向の捩り剛性を低くするこ
とができる。As described above, the bush assembly in which the sliding member is interposed between the tubular member and the elastic member reduces the frictional resistance between the tubular member and the elastic member by the sliding member. Since the mutual rotation can be easily performed, the rigidity in the direction perpendicular to the axis can be maintained and the torsional rigidity in the axis rotational direction can be reduced.
＜発明が解決しようとする課題＞ 上記の摺動部材を有するブッシュ組立体は、摺動部材
と筒状部材間に土砂あるいは泥水等の侵入により、摺動
面へ傷付きや錆が発生して円滑な摺動が損なわれ、摺動
部材による軸回転方向の捩り剛性の低減を充分に発揮す
ることができなくなるというおそれがあるために、摺動
面を保護するためのシール部材を設けることが、例え
ば、実開昭57−184336号、同60−29940号、同60−29941
号などで提案されている。<Problem to be Solved by the Invention> In the bush assembly having the above-described sliding member, the sliding surface is scratched or rusted due to intrusion of earth and sand or muddy water between the sliding member and the cylindrical member. Since smooth sliding may be impaired and the torsional rigidity in the shaft rotation direction may not be sufficiently reduced by the sliding member, a seal member for protecting the sliding surface may be provided. For example, Japanese Utility Model Laid-Open Nos. 57-184336, 60-29940, 60-29941
No. has been proposed.
しかしながら、これまでのシール部材の構造や取付方
法は構造が簡単であると充分なシール効果が得られず、
また、シール効果を充分なものにしようとすれば構造が
複雑にならざるを得ないという解決すべき課題があった
のである。However, the conventional structure and mounting method of the sealing member cannot provide a sufficient sealing effect if the structure is simple,
In addition, there is a problem to be solved in that the structure must be complicated in order to achieve a sufficient sealing effect.
＜課題を解決するための手段＞ そこで、本発明ではブッシュ組立体を、互いに同心的
に配置された内筒金具（１）、中間筒金具（２）及び外
筒金具（３）と、これら内筒金具（１）、中間筒金具
（２）及び外筒金具（３）との間に介装されたそれぞれ
筒状の内側ゴム弾性体（４）及び外側ゴム弾性体（５）
と、これら内側ゴム弾性体（４）と内筒金具（１）との
間に設けられ、これらの間の摩擦力を軽減して相対的な
摺動を許容する円筒状摺動スリーブ（６）と、この円筒
状摺動スリーブ（６）の両端部を被覆する弾性ダストシ
ール（７）とからなり、前記内筒金具（１）、中間筒金
具（２）が互いに対応する端部をそれぞれ前記内側ゴム
弾性体（４）の端面より軸方向外方に延長した延長部
（1a）（2a）を備えると共に、この中間筒金具延長部
（2a）に装着された弾性ダストシール（７）端面が前記
内筒金具延長部（1a）外周面に密接することにより前記
摺動スリーブ（６）と内筒金具（１）面の相対摺動部
（９）を外部と遮断する構造にすることによって、上記
従来技術の課題を解決したのである。<Means for Solving the Problems> Therefore, in the present invention, the bush assembly is provided with an inner cylinder fitting (1), an intermediate cylinder fitting (2), and an outer cylinder fitting (3) arranged concentrically with each other. A cylindrical inner rubber elastic body (4) and an outer rubber elastic body (5) respectively interposed between the cylindrical metal fitting (1), the intermediate cylindrical metal fitting (2), and the outer cylindrical metal fitting (3).
And a cylindrical sliding sleeve (6) provided between the inner rubber elastic body (4) and the inner cylindrical fitting (1) to reduce a frictional force therebetween and allow relative sliding. And an elastic dust seal (7) for covering both ends of the cylindrical sliding sleeve (6). The inner cylindrical fitting (1) and the intermediate cylindrical fitting (2) respectively correspond to their inner ends to the inner side. An extension (1a) (2a) extending axially outward from an end face of the rubber elastic body (4), and an end face of an elastic dust seal (7) attached to the extension part (2a) of the intermediate cylinder fitting is provided inside The above-described conventional structure is achieved by a structure in which the relative sliding portion (9) between the sliding sleeve (6) and the surface of the inner cylindrical fitting (1) is shielded from the outside by closely contacting the outer peripheral surface of the cylindrical fitting extension (1a). It solved the technical challenge.
＜作用＞ 本発明のブッシュ組立体は、上記のような構造の内筒
金具延長部（1a）、中間筒金具延長部（2a）を設けたこ
とによって、後者に弾性ダストシール（７）を固定し、
前者の外周面にこのシール（７）を密着させることによ
って、簡単な構造で充分に相対摺動部（９）を泥水や土
砂等から保護するためのダストシール作用が得られる。<Operation> The bush assembly of the present invention is provided with the inner cylinder fitting extension (1a) and the intermediate cylinder fitting extension (2a) having the above-described structures, so that the elastic dust seal (7) is fixed to the latter. ,
By bringing the seal (7) into close contact with the outer peripheral surface of the former, a dust sealing effect for sufficiently protecting the relative sliding portion (9) from muddy water, earth and sand, etc. can be obtained with a simple structure.
＜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> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図は本発明のブッシュ組立体の一実施例の中央縦
断面図であり、第２図は弾性ダストシール部分近傍の拡
大縦断面図である。FIG. 1 is a central longitudinal sectional view of one embodiment of a bush assembly of the present invention, and FIG. 2 is an enlarged longitudinal sectional view near an elastic dust seal portion.
本発明のブッシュ組立体は、互いに同心的に配置され
た内筒金具（１）、中間筒金具（２）及び外筒金具
（３）と、これら内筒金具（１）、中間筒金具（２）及
び外筒金具（３）との間に介装されたそれぞれ筒状の内
側ゴム弾性体（４）及び外側ゴム弾性体（５）とからな
る２重ブッシュ構造である。そして、内側ゴム弾性体
（４）と内筒金具（１）との間には、これらの間の摩擦
力を軽減して相対的な摺動を許容する円筒状摺動スリー
ブ（６）を介在させ、この円筒状摺動スリーブ（６）の
両端部を被覆する弾性ダストシート（７）とを有してい
る。The bush assembly according to the present invention includes an inner cylinder (1), an intermediate cylinder (2), and an outer cylinder (3) concentrically arranged with each other, and the inner cylinder (1) and the intermediate cylinder (2). ) And a cylindrical inner rubber elastic body (4) and an outer rubber elastic body (5) interposed between the outer cylindrical metal fitting (3). A cylindrical sliding sleeve (6) is interposed between the inner rubber elastic body (4) and the inner cylindrical fitting (1) to reduce the frictional force therebetween and allow relative sliding. And an elastic dust sheet (7) covering both ends of the cylindrical sliding sleeve (6).
ここで、内筒金具（１）、中間筒金具（２）が互いに
対応する端部を前記内側ゴム弾性体（４）の端面よりそ
れぞれ軸方向外方に延長した延長部（1a）（2a）を設
け、左右両端の内筒金具延長部（1a）（1a）の外周には
それぞれ圧入リング（８）（８）を圧入固定するのであ
る。摺動スリーブ（６）は両端のこれら圧入リング
（８）（８）に挟まれた格好となって抜けを防止するの
である。次いで、左右両端の中間筒金具延長部（2a）
（2a）にはそれぞれ弾性ダストシール（７）を装着し、
このダストシール（７）の下端が前記圧入リング（８）
外周面に密接して、前記摺動スリーブ（６）と内筒金具
（１）間の相対摺動部（９）を外部から遮断して、土砂
あるいは泥水等の侵入を防ぐのである。Here, the extension parts (1a) and (2a) in which the inner cylinder fitting (1) and the intermediate cylinder fitting (2) have their corresponding ends extended axially outward from the end face of the inner rubber elastic body (4), respectively. Are provided, and press-fit rings (8) and (8) are press-fitted and fixed to the outer circumferences of the inner cylindrical fitting extension portions (1a) and (1a) at both right and left ends. The sliding sleeve (6) is dressed between the press-fit rings (8) and (8) at both ends to prevent the sliding sleeve from coming off. Next, the extension parts (2a) of the middle tube fittings at the left and right ends
(2a) each is equipped with an elastic dust seal (7),
The lower end of the dust seal (7) is the press-fit ring (8).
In close contact with the outer peripheral surface, the relative sliding portion (9) between the sliding sleeve (6) and the inner metal fitting (1) is shut off from the outside to prevent intrusion of earth and sand or muddy water.
なお、実施例では圧入リング（８）を介して弾性ダス
トシール（７）端面を内筒金具延長部（2a）外周面に密
接させているが、圧入リング（８）を省略して、弾性ダ
ストシール（７）端面を直接、延長部（2a）の外周面に
密接させてもよい。In the embodiment, the end face of the elastic dust seal (7) is brought into close contact with the outer peripheral face of the inner cylinder fitting extension (2a) via the press-fit ring (8), but the press-fit ring (8) is omitted and the elastic dust seal (7) is omitted. 7) The end face may be directly in close contact with the outer peripheral face of the extension (2a).
＜発明の効果＞ 以上詳述した本発明のブッシュ組立体の構造によっ
て、軸直角方向の剛性が高くかつ軸回転方向の捩り剛性
が低い良好な性質のものが、組立容易で安価に供給でき
るという有益な効果を奏するものとなった。<Effect of the Invention> With the structure of the bush assembly of the present invention described in detail above, it is easy to assemble and provide inexpensively a material having high rigidity in the direction perpendicular to the axis and low torsional rigidity in the axis rotation direction. It has a beneficial effect.
第１図は本発明のブッシュ組立体の一実施例の中央縦断
面図であり、第２図は弾性ダストシール部分近傍の拡大
縦断面図である。 （１）円筒金具、（1a）内筒金具延長部 （２）中間筒金具、（2a）中間筒金具延長部 （３）外筒金具、（４）内側ゴム弾性体 （５）外側ゴム弾性体、（６）円筒状摺動スリーブ （７）弾性ダストシール、（８）圧入リング （９）相対摺動部FIG. 1 is a central longitudinal sectional view of one embodiment of a bush assembly of the present invention, and FIG. 2 is an enlarged longitudinal sectional view near an elastic dust seal portion. (1) Cylindrical fitting, (1a) Extension of inner cylinder fitting (2) Intermediate cylinder fitting, (2a) Extension of intermediate cylinder fitting (3) Outer cylinder fitting, (4) Inner rubber elastic body (5) Outer rubber elastic body , (6) Cylindrical sliding sleeve (7) Elastic dust seal, (8) Press-fit ring (9) Relative sliding part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 谷口 晴幸 広島県安芸郡府中町新地３番１号 マツ ダ株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Haruyuki Taniguchi 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd.
Claims (1)
（１）、中間筒金具（２）及び外筒金具（３）と、これ
ら内筒金具（１）、中間筒金具（２）及び外筒金具
（３）との間に介装されたそれぞれ筒状の内側ゴム弾性
体（４）及び外側ゴム弾性体（５）と、該内側ゴム弾性
体（４）と内筒金具（１）との間に設けられ、これらの
間の摩擦力を軽減して相対的な摺動を許容する円筒状摺
動スリーブ（６）と、該円筒状摺動スリーブ（６）の両
端部を被覆する弾性ダストシール（７）とからなり、前
記内筒金具（１）、中間筒金具（２）が互いに対応する
端部をそれぞれ前記内側ゴム弾性体（４）の端面より軸
方向外方に延長した延長部（1a）（2a）を備えると共に
該中間筒金具延長部（2a）に装着された弾性ダストシー
ル（７）端面が前記内筒金具延長部（1a）外周面に密接
することにより前記摺動スリーブ（６）と内筒金具
（１）間の相対摺動部（９）を外部と遮断してなること
を特徴とするブッシュ組立体。An inner cylinder (1), an intermediate cylinder (2) and an outer cylinder (3) arranged concentrically with each other, and the inner cylinder (1), the intermediate cylinder (2) and the outer cylinder. A cylindrical inner rubber elastic body (4) and an outer rubber elastic body (5) respectively interposed between the cylindrical metal fitting (3), and the inner rubber elastic body (4) and the inner cylindrical metal fitting (1); And a cylindrical sliding sleeve (6) for reducing the frictional force therebetween and permitting relative sliding, and an elastic covering the both ends of the cylindrical sliding sleeve (6). An extension part comprising a dust seal (7), wherein the inner cylinder fitting (1) and the intermediate cylinder fitting (2) have their corresponding ends extended axially outward from the end face of the inner rubber elastic body (4). (1a) The end face of the elastic dust seal (7) attached to the intermediate cylindrical metal fitting extension (2a) having the (2a) and the inner cylindrical metal fitting extends. Bush assembly characterized by comprising to block relative sliding part (9) and the external between the inner sleeve (1) and the sliding sleeve (6) by closely part (1a) outer peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10525188A JP2647687B2 (en) | 1988-04-26 | 1988-04-26 | Bush assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10525188A JP2647687B2 (en) | 1988-04-26 | 1988-04-26 | Bush assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01275926A JPH01275926A (en) | 1989-11-06 |
| JP2647687B2 true JP2647687B2 (en) | 1997-08-27 |
Family
ID=14402435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10525188A Expired - Lifetime JP2647687B2 (en) | 1988-04-26 | 1988-04-26 | Bush assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2647687B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166839U (en) * | 1988-04-30 | 1989-11-22 | ||
| JP2799606B2 (en) * | 1989-10-25 | 1998-09-21 | 株式会社ブリヂストン | Electrorheological fluid |
| DE102008028115A1 (en) * | 2008-06-13 | 2009-12-24 | Carl Freudenberg Kg | camp |
| KR102224010B1 (en) * | 2015-11-30 | 2021-03-05 | 현대자동차 주식회사 | Sliding bush for suspension of vehicle |
-
1988
- 1988-04-26 JP JP10525188A patent/JP2647687B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01275926A (en) | 1989-11-06 |
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