JPH03194230A - Slide type bushing assembly - Google Patents
Slide type bushing assemblyInfo
- Publication number
- JPH03194230A JPH03194230A JP33232389A JP33232389A JPH03194230A JP H03194230 A JPH03194230 A JP H03194230A JP 33232389 A JP33232389 A JP 33232389A JP 33232389 A JP33232389 A JP 33232389A JP H03194230 A JPH03194230 A JP H03194230A
- Authority
- JP
- Japan
- Prior art keywords
- rigid sleeve
- inner cylinder
- cylinder member
- sliding
- inner tube
- 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
- 239000011347 resin Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 17
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract 1
- 238000010348 incorporation Methods 0.000 abstract 1
- 239000004636 vulcanized rubber Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013040 rubber vulcanization Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
Landscapes
- Support Of The Bearing (AREA)
- Springs (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
【産業上の利用分寿）
本発明は摺動型ブツシュ組を体に関するもので、詳しく
は車両のサスペンション、例えばダブルウィツシュボー
ンにおけるアッパーアームと車体との連結部しこ用いて
好適な摺動型ブツシュ組立体に関するものである。
［従来の技術］
従来、車両サスペンション等の枢支連結部に使用される
ブツシュ組立体は、一般に同心的に配設される内外二つ
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
。
しかし、このような構造のブツシュ組立体は、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１０４５８
２７号や米国特許第３３３１６４２号等の明ａ書によっ
て提案されている。
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
させた摺動型ブツシュ組立体は、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＠回転方向の捩り剛性を低くす
ることができる。そして従来、この摺動用樹脂材料から
なる円筒状摺動部材は補強と信頼性向上を考えて内側か
ら、あるいは外側から金属材料からなる支持筒に圧入さ
れて用いられていた。例えば特開昭６１−１２７９３４
号公報においては剛性スリーブ部材（摺動部材）の端部
を、半径方向外方に延びる外フランジ部とその外フラン
ジ部の外周縁から軸方向外側に延びる筒状延長部にて構
成させ、かつ摺動部材が一端に半径方向外方に延びる外
フランジ部を有する二つの円筒体にて構成され、かつそ
の二つの円筒体を、その外フランジ部がブツシュ組立体
の端部側に位置するように内筒部材と前記剛性スリーブ
部材との間に配置させ、そのいずれかで圧入固定して円
筒体と内筒部材との間、あるいは剛性スリーブと円筒体
との間で相対回動を行なったり、又は円筒体をいずれに
も固定せずに、剛性スリーブ及び内筒部材双方に対して
相対回動し得るようにした構成が提案されている。
また、本出願人が先に出願しな実願昭６３−７７５９１
号においては、金属パイプからなる支持筒内周に片側フ
ランジ付摺動部材をそれぞれ両側から圧入した円筒状摺
動部材を介装した二重ブツシュ構造３−
４−
が提案されている。
これらの摺動型ブツシュ組立体においては、その−例を
第４図に示したが、外筒部材（Ｉ２）と剛性スリーブ（
１０）とが同心的に配置され、その空間内に弾性部材（
１３）を注入して弾性部材（］３）が加硫−体成形され
、その後外筒部材（１２）を絞り加工して弾性部材（］
３）が圧縮される。そして肩部（１６）を有する剛性ス
リーブ（１０）にフランジ部（１８）を有する摺動部材
（１４）が両側から組付けられその上から止めリング（
］５）圧入により、内筒部材（１１）及び、樹脂製剛性
部材（１４）の抜は出しが防止され、その外方へシール
部材（１７）が配設されるといった構成により製造され
ていた。
【発明が解決しようとする課題】
ところが、この構成による方法だと円滑な摺動性能を得
るためには、径方向の公差を非常に厳しく管理する必要
があった。また、止めリング（１５）の圧入においては
圧入しすぎると円滑な摺動を阻害したり、樹脂製の摺動
部材（１４）のフランジ部（１８）を破損するという問
題が生じるため、最大０．５ｍｎ程度の隙間（１９）を
設けてガタをもつよう隔置する必要があった。これにし
ても、公差を厳しく管理したり圧入時にストロークを管
理する必要があったり、組付は作業は極めて煩わしいも
のであった。更に、軸方向のガタは車両において打撃音
、ショック等の不具合を引き起こすものであった。[Industrial Application Lifespan] The present invention relates to a sliding bushing assembly for a body, and more specifically, the present invention relates to a sliding bushing assembly for use in a vehicle suspension, for example, a joint between an upper arm and a vehicle body in a double wishbone. This relates to a mold bushing assembly. [Prior Art] Conventionally, a bushing assembly used for a pivot connection part of a vehicle suspension, etc. generally has a cylindrical elastic member made of a rubber material between two cylindrical members, an inner and a outer member, which are arranged concentrically. It is an interposed structure, and due to the spring characteristics of its elastic member,
It mainly absorbs vibrations in the direction perpendicular to the axis. However, the bushing assembly having such a structure has a drawback in that increasing the rigidity in the direction perpendicular to the axis increases the torsional rigidity. For this purpose, between the cylindrical member and the elastic member,
For example, British Patent No. 10458
27 and US Pat. No. 3,331,642. In this sliding type bush assembly in which the sliding member is interposed between the cylindrical member and the elastic member, the sliding member reduces the frictional resistance between the cylindrical member and the elastic member, and Since the elastic members can easily rotate relative to each other, rigidity in the direction perpendicular to the axis can be maintained and torsional rigidity in the rotational direction can be reduced. Conventionally, this cylindrical sliding member made of a sliding resin material has been press-fitted from the inside or outside into a support tube made of a metal material in order to strengthen it and improve reliability. For example, JP-A-61-127934
In the publication, the end of the rigid sleeve member (sliding member) is composed of an outer flange extending radially outward and a cylindrical extension extending axially outward from the outer periphery of the outer flange, and The sliding member is composed of two cylindrical bodies each having an outer flange portion extending radially outward at one end, and the two cylindrical bodies are arranged such that the outer flange portion thereof is located on the end side of the bushing assembly. It is arranged between the inner cylindrical member and the rigid sleeve member, and is press-fitted with either of them to perform relative rotation between the cylindrical body and the inner cylindrical member or between the rigid sleeve and the cylindrical body. Alternatively, a configuration has been proposed in which the cylindrical body is not fixed to either but is rotatable relative to both the rigid sleeve and the inner cylinder member. In addition, the present applicant has previously filed Utility Application No. 77591/1983.
No. 3-4- proposes a double bushing structure in which a cylindrical sliding member in which one-sided flanged sliding members are press-fitted from both sides is inserted into the inner periphery of a support cylinder made of a metal pipe. In these sliding type bush assemblies, an example of which is shown in FIG. 4, the outer cylinder member (I2) and the rigid sleeve (
10) are arranged concentrically, and an elastic member (
13) is injected to form the elastic member (]3) into a vulcanized body, and then the outer cylinder member (12) is drawn to form the elastic member (]3).
3) is compressed. Then, a sliding member (14) having a flange portion (18) is assembled from both sides to a rigid sleeve (10) having a shoulder portion (16), and a retaining ring (
] 5) Manufactured with a configuration in which the inner cylinder member (11) and the resin rigid member (14) are prevented from being pulled out by press-fitting, and the seal member (17) is disposed on the outside thereof. . [Problems to be Solved by the Invention] However, with this method, in order to obtain smooth sliding performance, it is necessary to control the tolerance in the radial direction very strictly. In addition, when press-fitting the retaining ring (15), if the retaining ring (15) is press-fitted too much, it may impede smooth sliding or damage the flange portion (18) of the resin sliding member (14). It was necessary to provide a gap (19) of about .5 mm and space them apart with play. Even in this case, it was necessary to strictly control the tolerances and control the stroke during press-fitting, and the assembly work was extremely troublesome. Furthermore, the play in the axial direction causes problems such as impact noise and shock in the vehicle.
上記課題を検討した結果、次のような摺動型ブツシュ組
立体を開発した。すなわち、互いに同心的に配置された
内筒部材（１）と外筒部材（２）の間に剛性スリーブ（
６）が介在し、剛性スリーブ（６）と外筒部材（２）の
間に弾性部材（３）を介装し、剛性スリーブ（６）と内
筒部材（１，）の間に摺動部材（４）を介装してなる摺
動型ブツシュ組立体であって、前記内筒部材（１）の中
央部に凸部（１ａ）を設け、剛性スリーブ（６）の内径
側中央部に凹部（６ａ）を設けると共に、 この剛性ス
リーブ（６）の両端小径部（６ｂ） （６ｂ）を前記内
筒部材（１）中央部の凸部（ｌａ）ｎ径よりも僅かに大
きくして内筒部材（１）と剛性スリーブ（６）を同心的
に配置し、前記剛性スリーブ（６）と内筒部材（１）の
間に摺動部材（４）樹脂を一体に成形してなることを特
徴とする摺動型ブツシュ組寮体である。
また、上記のように内筒部材（１）と剛性スリーブ（６
）を同心的に配置した後、前記内筒部材（１）を拡径ま
たは剛性スリーブ（６）を絞り加工して、剛性スリーブ
（６）の小径部（６ｂ）内径を前記内筒部材（１）の凸
部（］ａ）外径よりも小さくして、 その間に摺動部材
（４）樹脂を一体に成形した構造の摺動型ブツシュ組立
体を開発した。
更に、剛性スリーブ（６）又は剛性スリーブ（６）のハ
ウジング（５）の端部内周又は外周にシール部材（７）
の環状剛性金具（８）を圧入あるいは絞り加工して、少
なくとも内筒部材（１）と剛性スリーブ（６）間をシー
ルするシール部材（７）を設けた構造の摺動型ブツシュ
組立体を開発したのである。As a result of considering the above issues, we developed the following sliding type bushing assembly. That is, a rigid sleeve (
6), an elastic member (3) is interposed between the rigid sleeve (6) and the outer cylinder member (2), and a sliding member is interposed between the rigid sleeve (6) and the inner cylinder member (1,). (4), wherein a convex portion (1a) is provided at the center of the inner cylinder member (1), and a recess is provided at the center of the inner diameter side of the rigid sleeve (6). (6a), and the small diameter portions (6b) at both ends of the rigid sleeve (6) are slightly larger than the diameter of the convex portion (la) at the center of the inner cylinder member (1). A member (1) and a rigid sleeve (6) are arranged concentrically, and a sliding member (4) resin is integrally molded between the rigid sleeve (6) and the inner cylinder member (1). It is a sliding type dormitory with a combination of bushes. In addition, as described above, the inner cylinder member (1) and the rigid sleeve (6
) are arranged concentrically, the diameter of the inner cylinder member (1) is expanded or the rigid sleeve (6) is drawn, and the inner diameter of the small diameter part (6b) of the rigid sleeve (6) is adjusted to the inner diameter of the inner cylinder member (1). We have developed a sliding bushing assembly with a structure in which the convex part (]a) is made smaller than the outer diameter of the convex part (]a), and the sliding member (4) resin is integrally molded between them. Furthermore, a sealing member (7) is provided on the inner or outer circumference of the end of the rigid sleeve (6) or the housing (5) of the rigid sleeve (6).
Developed a sliding bushing assembly having a structure in which a sealing member (7) for sealing at least between the inner cylinder member (1) and the rigid sleeve (6) is provided by press-fitting or drawing the annular rigid fitting (8). That's what I did.
剛性スリーブと内筒部材に対し、摺動部材（４）樹脂を
一体に成形するため、樹脂の成形収縮により摺動部材（
４）樹脂円筒の半径方向内方に収縮が起り、内筒に強固
に固着されると共に剛性スリーブ（６）との間にわずか
に隙間を生じ、剛性スリーブと樹脂製の摺動部材（４）
間で摺動可能となる。
また、内筒部材（１）と剛性スリーブ（６）を同心的に
配置した後、前記内筒部材０）を拡径または剛性スリー
ブ（６）を絞り加工して、剛性スリーブ（６）の小径部
（６ｂ）内径を前記内筒部材（１）の凸部（１ａ）外径
よりも小さくすると、通常使用よりも更に大きな抜は荷
重を必要とされるものにおいても強固な抜は止め作用が
得られる。
剛性スリーブ（６）又は剛性スリーブ（６）のハウジン
グ（５）の端部内周又は外周に環状シール部材（７）の
剛性金具（８）を圧入あるいは絞り加工して、少なくと
も内筒部材（１）ど剛性スリーブ（６）間をシールする
シール部材（７）を設けると、シール部材（７）の保持
が強固になされるとともに、ごみ等の侵入を完全に防止
する機能が付与される。Since the sliding member (4) resin is integrally molded with the rigid sleeve and inner cylinder member, the sliding member (4) is molded due to molding shrinkage of the resin.
4) The resin cylinder contracts radially inward and is firmly fixed to the inner cylinder, creating a slight gap between the rigid sleeve (6) and the rigid sleeve and the resin sliding member (4).
It becomes possible to slide between the two. Further, after arranging the inner cylinder member (1) and the rigid sleeve (6) concentrically, the diameter of the inner cylinder member 0) is expanded or the rigid sleeve (6) is drawn to reduce the diameter of the rigid sleeve (6). By making the inner diameter of the part (6b) smaller than the outer diameter of the convex part (1a) of the inner cylindrical member (1), a strong pull-out prevention effect can be achieved even when a larger pull-out load is required than in normal use. can get. The rigid fitting (8) of the annular seal member (7) is press-fitted or drawn into the inner or outer periphery of the rigid sleeve (6) or the housing (5) of the rigid sleeve (6), so that at least the inner cylinder member (1) By providing a sealing member (7) for sealing between the rigid sleeves (6), the sealing member (7) is firmly held, and a function of completely preventing the intrusion of dirt and the like is provided.
【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。
第１図は本発明の第１実施例の摺動型ブツシュ組立体の
断面図である。
この摺動型ブツシュ組立体は、同心的に配置さ九た内筒
部材（１）と外筒部材（２）との間に、内筒（１）側か
ら摺動部材（４）、筒状のハウジング（５）、ゴム弾性
部材（３）が同心的に設けられている点では従来同様で
ある。しかし、この摺動型ブツシュ組立体は、前記内筒
部材（１）の中央部に凸部（ｌａ）を設け、ハウジング
（５）内の剛性スリーブ（６）の内径側中央部に四部（
６ａ）を設けると共に、剛性スリーブ（６）の両側小径
部（６ｂ）（６ｂ）を前記内筒部材（１）中央部の凸部
（１ａ）外径よりも僅かシこ大ぎくしでいる。
この摺動型ブツシュ組立体の組付けに際しては、予めハ
ウジング（５）と弾性部材（３）及び外筒部材（２）と
がゴム加硫同時接着された後に、外筒部組（２）が絞り
加工されゴムが予備圧縮されたものを剛性スリーブ（６
）へ外挿圧入固定し、 それらを内筒部材（１）へ外挿
し、そして、前記剛性スリーブ（６）と内筒部材（１）
の間に摺動部材（４）樹脂を一体に成形する。
あるいは、 予め剛性スリーブ（６）内に内筒部月（１
）を内挿し、摺動部材（４）樹脂を一体成形したものに
、前記ハウジング（５）と弾性部材（３）及び外筒部材
（２）とが加硫接着されて、予備圧縮されたものを外挿
圧入固定するのである。摺動部材（４）に使用する樹脂
としては、ポリアミド樹脂、ポリアセタール樹脂、高分
子量ポリエチレンなどがあげられる。
使用する樹脂によっても異なるが、樹脂の肉厚を１〜２
＋ｍに設定すれは、剛性スリーブと樹脂製摺動部材の間
の隙間はＯ，］ａ＋以下に抑えることができる。また、
摺動部材（４）樹脂は中央部にて半径方向外方に膨出し
ているため、軸線方向中央に向かって僅かに収縮し１、
樹脂の保持力を向−１ニさせる。通常の使用においては
、樹脂の剪断力により、この構造で十分な抜は荷重が確
保できる。
更に、大きな抜は荷重を必要とされるものにおいては、
上記のように内筒部材（１）と剛性スリーブ（６）を
同心的に配置した後、前記内筒部材（１）を拡径または
剛性スリーブ（６）を絞り加工して、剛性スリーブ（６
）の小径部（６ｂ）内径を前記内筒部材（１）の凸部（
１ａ）外径よりも小さくするといった方法により対応が
できるのである。
この例では、剛性スリーブ（６）のハウジング（５）の
内周端部にシール部材（７）を設けている。 この環状
のシール部材（７）は、リング状の剛性金Ａ（８）とそ
れに一体のシールゴムからなり、圧入などにより、内筒
部材（１）とハウジング（５）間にシール機構を設ける
ことができる。 シール部材（７）は必要に応じ圧入の
みあるいは圧入接着して用いられる。
第２図は本発明の第２実施例である。はぼ第１図に示し
たものと同様な構造であるが、剛性スリーブ（６）が中
央で左右に２分割されており、剛性スリーブ（６）の小
径部（６ｂ）内径は内筒部材（１）の凸部（１ａ）外径
よりも小さく形成されているか、これは内筒部材（１）
の両側から軸線方向中央に向けてハウジング（５）へ内
挿圧入固定することができ、軸方向の受圧面積をさらに
大きくすることができる。 このようにして外挿された
剛性スリーブ（６）（６）と内筒部材（１）との間に摺
動部材（４）が樹脂モールドされている。
第３図は本発明の第３実施例である。この例のように、
剛性スリーブ（６）と弾性部材（３）及び内筒部材（１
）とがゴム加硫同時接着されて外筒部材（２）の絞り加
工により、ゴムが子細圧縮されたものを内筒部材（１）
へ外挿し、 そして、前記剛性スリーブ（６）と内筒部
材（１）の間に慴動部材（４）樹脂を一体に成形するこ
ともできる。
あるいは、予め剛性スリーブ（６）１．ｒ内筒部材（１
）を内挿し、摺動部材（４）＃Ｉ脂を一体成形したもの
に弾性部材（３）及び外筒部材（２）が加硫接着された
後、外筒部材（２）を絞り加工し、 ゴ１１を予備圧縮
した構造としてもよい。
この例では剛性スリーブ（６）の外周端部にシール部材
（７）を設けている。 この環状のシール部材（７）は
リング状の剛性金具（８）とそれに一体のシールゴムと
からなり、圧入あるいは剛性金具（８）の絞り加工によ
り、内筒部材（１）と剛院スリーブ（６）間にシール機
構を設けることができる。圧入、絞＝１１−
１２−
り加工いずれの場合も必要に応じ、接着、非接着で用い
ることができる。
【発明の効果】
本発明は以上のように樹脂の収縮傾向を巧みに利用した
摺動型ブツシュ組立体の構造を提供するものである。摺
動部材となる樹脂の成形収縮により、摺動部材（４）＃
脂円筒の半径方向内方に収縮が起り、内筒に強固に固着
されると同時に剛性スリーブとの間にわずかに隙間を生
じ、剛性スリーブと樹脂の間で摺動可能となるので、こ
れによって、従来の煩わしい摺動部材の組付は作業の必
要もなく＃！動部材を一体形成することができ、摺動抵
抗値も一定の値とすることができた。
各部品の寸法公差は特に厳しく管理する必要もなく、ま
た止めリングの圧入管理も不要となるのである。
軸線方向に大荷重が入力された場合でも、内筒部材の中
央部に設けられた凸部と、剛性スリーブの内径側中央部
に設けられた凹部によって抜は止め作用が得られ、摺動
部材と剛性スリーブ間の僅かな隙間が摺動を可能としな
がら、軸線方向のガタをゼロとするなど、乗り心地を含
む車両の快適性が確保されることとなった。[Examples] Examples of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of a sliding bushing assembly according to a first embodiment of the present invention. This sliding bushing assembly includes a sliding member (4), a cylindrical bushing, The housing (5) and the rubber elastic member (3) are provided concentrically, which is the same as in the conventional case. However, in this sliding bushing assembly, a convex portion (la) is provided at the center of the inner cylinder member (1), and four portions (la) are provided at the center of the inner diameter side of the rigid sleeve (6) in the housing (5).
6a), and the small diameter portions (6b) on both sides of the rigid sleeve (6) are made slightly larger than the outer diameter of the convex portion (1a) at the center of the inner cylinder member (1). When assembling this sliding bushing assembly, the housing (5), elastic member (3), and outer cylinder member (2) are bonded together with rubber vulcanization, and then the outer cylinder part assembly (2) is attached. A rigid sleeve (6
), and then the rigid sleeve (6) and the inner cylinder member (1) are inserted into the inner cylinder member (1).
A sliding member (4) resin is integrally molded between them. Alternatively, the inner cylinder part (1) is placed in the rigid sleeve (6) in advance.
), and the housing (5), the elastic member (3), and the outer cylinder member (2) are vulcanized and bonded to the sliding member (4), which is integrally molded with resin, and pre-compressed. This is done by inserting and press-fitting. Examples of the resin used for the sliding member (4) include polyamide resin, polyacetal resin, and high molecular weight polyethylene. It depends on the resin used, but the thickness of the resin should be 1 to 2
+m, the gap between the rigid sleeve and the resin sliding member can be suppressed to less than O,]a+. Also,
Since the resin of the sliding member (4) bulges outward in the radial direction at the center, it contracts slightly toward the center in the axial direction.
Increase the holding power of the resin by -1. In normal use, this structure can ensure a sufficient pulling load due to the shearing force of the resin. Furthermore, in cases where a large pulling load is required,
After arranging the inner cylindrical member (1) and the rigid sleeve (6) concentrically as described above, the inner cylindrical member (1) is expanded in diameter or the rigid sleeve (6) is drawn.
) of the small diameter portion (6b) of the inner cylinder member (1).
1a) This can be handled by making the diameter smaller than the outer diameter. In this example, a sealing member (7) is provided at the inner peripheral end of the housing (5) of the rigid sleeve (6). This annular sealing member (7) consists of a ring-shaped rigid metal A (8) and a sealing rubber integrated therein, and a sealing mechanism can be provided between the inner cylinder member (1) and the housing (5) by press-fitting or the like. can. The sealing member (7) may be used only by press-fitting or by press-fitting and bonding, as required. FIG. 2 shows a second embodiment of the invention. The structure is similar to that shown in Fig. 1, but the rigid sleeve (6) is divided into left and right halves at the center, and the inner diameter of the small diameter part (6b) of the rigid sleeve (6) is connected to the inner cylindrical member ( 1) Is the convex portion (1a) formed smaller than the outer diameter of the inner cylinder member (1)?
The housing (5) can be press-fitted into the housing (5) from both sides toward the center in the axial direction, and the pressure receiving area in the axial direction can be further increased. A sliding member (4) is resin-molded between the rigid sleeves (6) (6) and the inner cylinder member (1) that have been inserted in this way. FIG. 3 shows a third embodiment of the present invention. As in this example,
Rigid sleeve (6), elastic member (3) and inner cylinder member (1)
) are adhered together with rubber vulcanization, and the rubber is compressed finely by the drawing process of the outer cylinder member (2) to form the inner cylinder member (1).
The sliding member (4) resin can also be integrally molded between the rigid sleeve (6) and the inner cylinder member (1). Alternatively, the rigid sleeve (6) 1. r Inner cylinder member (1
), and after the elastic member (3) and the outer cylinder member (2) are vulcanized and bonded to the sliding member (4) #I fat is integrally molded, the outer cylinder member (2) is drawn. , it is also possible to have a structure in which the go 11 is pre-compressed. In this example, a seal member (7) is provided at the outer peripheral end of the rigid sleeve (6). This annular sealing member (7) is made up of a ring-shaped rigid fitting (8) and a sealing rubber integrated therewith.The inner cylinder member (1) and the goin sleeve (6) are formed by press-fitting or drawing the rigid fitting (8). ) A sealing mechanism can be provided between the two. In either case of press-fitting or drawing processing, adhesive or non-adhesive methods can be used as required. Effects of the Invention As described above, the present invention provides a structure of a sliding bushing assembly that skillfully utilizes the shrinkage tendency of resin. Due to molding shrinkage of the resin that becomes the sliding member, the sliding member (4) #
The resin cylinder contracts radially inward and is firmly fixed to the inner cylinder, at the same time creating a slight gap between it and the rigid sleeve, allowing it to slide between the rigid sleeve and the resin. , there is no need to assemble conventional sliding parts! The moving member could be integrally formed, and the sliding resistance value could also be kept constant. There is no need to particularly strictly control the dimensional tolerances of each part, and there is no need to control the press-fitting of retaining rings. Even when a large load is input in the axial direction, the protrusion provided at the center of the inner cylinder member and the recess provided at the center of the inner diameter side of the rigid sleeve prevent the sliding member from coming out. While the small gap between the sleeve and the rigid sleeve allows for sliding movement, there is no play in the axial direction, ensuring vehicle comfort including ride quality.
第１〜３図は本発明の摺動型ブツシュ組立体の断面図で
ある。第４図は同従来品の断面図である。
（１）内筒部椙 （１ａ）内筒中央凸部（２）
外筒部材 （３）弾性部材（４）摺動部材
（６）剛性スリーブ（６ａ）剛性スリーブ中央凹
部
（６ｂ）剛性スリーブ端部小径部
（７）シール部材 （８）剛性金具以上1-3 are cross-sectional views of the sliding bushing assembly of the present invention. FIG. 4 is a sectional view of the conventional product. (1) Inner cylinder part (1a) Inner cylinder central convex part (2)
Outer cylinder member (3) Elastic member (4) Sliding member
(6) Rigid sleeve (6a) Rigid sleeve center recess (6b) Rigid sleeve end small diameter part (7) Seal member (8) Rigid metal fitting or more
Claims (1)
材（２）の間に剛性スリーブ（６）が介在し、剛性スリ
ーブ（６）と外筒部材（２）の間に弾性部材（３）を介
装し、剛性スリーブ（６）と内筒部材（１）の間に摺動
部材（４）を介装してなる摺動型ブッシュ組立体であっ
て、前記内筒部材（１）の中央部に凸部（１ａ）を設け
、剛性スリーブ（６）の内径側中央部に凹部（６ａ）を
設けると共に、該剛性スリーブ（６）の両端小径部（６
ｂ）（６ｂ）を前記内筒部材（１）中央部の凸部（１ａ
）外径よりも僅かに大きくして内筒部材（１）と剛性ス
リーブ（６）を同心的に配置し、前記剛性スリーブ（６
）と内筒部材（１）の間に摺動部材（４）樹脂を一体に
成形してなることを特徴とする摺動型ブッシュ組立体。 ２ 請求項１記載の内筒部材（１）と剛性スリーブ（６
）を同心的に配置した後、前記内筒部材（１）を拡径ま
たは剛性スリーブ（６）を絞り加工して、剛性スリーブ
（６）の小径部（６ｂ）内径を前記内筒部材（１）の凸
部（１ａ）外径よりも小さくしてその間に摺動部材（４
）樹脂を一体に成形してなることを特徴とする摺動型ブ
ッシュ組立体。 ３ 請求項１記載の剛性スリーブ（６）又は剛性スリー
ブ（６）のハウジング（５）の端部内周又は外周にシー
ル部材（７）の環状剛性金具（８）を圧入あるいは絞り
加工して、少なくとも内筒部材（１）と剛性スリーブ（
６）間をシールするシール部材（７）を設けてなる摺動
型ブッシュ組立体。[Claims] 1. A rigid sleeve (6) is interposed between an inner cylinder member (1) and an outer cylinder member (2) that are arranged concentrically with each other, and the rigid sleeve (6) and the outer cylinder member (2) are arranged concentrically with each other. ), and a sliding member (4) is interposed between the rigid sleeve (6) and the inner cylinder member (1). , a convex portion (1a) is provided at the center of the inner cylinder member (1), a recess (6a) is provided at the center of the inner diameter side of the rigid sleeve (6), and small diameter portions ( 6
b) (6b) is attached to the central convex portion (1a) of the inner cylinder member (1).
) The inner cylinder member (1) and the rigid sleeve (6) are arranged concentrically with a diameter slightly larger than the outer diameter, and the rigid sleeve (6)
) and an inner cylindrical member (1), a sliding member (4) resin is integrally molded between the sliding member (4) and the inner cylinder member (1). 2. The inner cylinder member (1) and the rigid sleeve (6) according to claim 1.
) are arranged concentrically, the diameter of the inner cylinder member (1) is expanded or the rigid sleeve (6) is drawn, and the inner diameter of the small diameter part (6b) of the rigid sleeve (6) is adjusted to the inner diameter of the inner cylinder member (1). ) is made smaller than the outer diameter of the convex part (1a) and a sliding member (4
) A sliding bushing assembly characterized by being integrally molded from resin. 3 The annular rigid fitting (8) of the sealing member (7) is press-fitted or drawn into the inner circumference or outer circumference of the end of the rigid sleeve (6) or the housing (5) of the rigid sleeve (6) according to claim 1, and at least Inner cylinder member (1) and rigid sleeve (
6) A sliding bushing assembly provided with a sealing member (7) for sealing the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33232389A JP2742119B2 (en) | 1989-12-20 | 1989-12-20 | Sliding bush assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33232389A JP2742119B2 (en) | 1989-12-20 | 1989-12-20 | Sliding bush assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03194230A true JPH03194230A (en) | 1991-08-23 |
| JP2742119B2 JP2742119B2 (en) | 1998-04-22 |
Family
ID=18253680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33232389A Expired - Fee Related JP2742119B2 (en) | 1989-12-20 | 1989-12-20 | Sliding bush assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2742119B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439203A (en) * | 1991-10-24 | 1995-08-08 | Toyoda Gosei Co., Ltd. | Vibration-damping bushing with sliding surface on insert located between inner and outer cylinders |
| EP1688283A1 (en) * | 2005-02-07 | 2006-08-09 | Peugeot Citroen Automobiles SA | Bearing for mounting an anti-roll bar on the frame of a motor vehicle |
| CN101907126A (en) * | 2009-06-06 | 2010-12-08 | Skf公司 | The bearing means that is used for carrying roller |
| JP2011520066A (en) * | 2008-04-03 | 2011-07-14 | ザ・プルマン・カンパニー | Curved bushing with torsional slip |
| WO2022183873A1 (en) * | 2021-03-01 | 2022-09-09 | 长城汽车股份有限公司 | Bushing, suspension system and vehicle |
-
1989
- 1989-12-20 JP JP33232389A patent/JP2742119B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439203A (en) * | 1991-10-24 | 1995-08-08 | Toyoda Gosei Co., Ltd. | Vibration-damping bushing with sliding surface on insert located between inner and outer cylinders |
| EP1688283A1 (en) * | 2005-02-07 | 2006-08-09 | Peugeot Citroen Automobiles SA | Bearing for mounting an anti-roll bar on the frame of a motor vehicle |
| FR2881808A1 (en) * | 2005-02-07 | 2006-08-11 | Peugeot Citroen Automobiles Sa | FIXING BEARING AN ANTI-DEVERS BAR AT THE CHASSIS OF A MOTOR VEHICLE |
| JP2011520066A (en) * | 2008-04-03 | 2011-07-14 | ザ・プルマン・カンパニー | Curved bushing with torsional slip |
| CN101907126A (en) * | 2009-06-06 | 2010-12-08 | Skf公司 | The bearing means that is used for carrying roller |
| WO2022183873A1 (en) * | 2021-03-01 | 2022-09-09 | 长城汽车股份有限公司 | Bushing, suspension system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2742119B2 (en) | 1998-04-22 |
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|---|---|---|---|
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