JP2011178274A - Stabilizer bush - Google Patents

Stabilizer bush Download PDF

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JP2011178274A
JP2011178274A JP2010044365A JP2010044365A JP2011178274A JP 2011178274 A JP2011178274 A JP 2011178274A JP 2010044365 A JP2010044365 A JP 2010044365A JP 2010044365 A JP2010044365 A JP 2010044365A JP 2011178274 A JP2011178274 A JP 2011178274A
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side member
vehicle body
bush
body side
resin block
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JP2010044365A
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JP5698911B2 (en
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Kiyoshi Kidahashi
潔 木田橋
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Bridgestone Corp
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Bridgestone Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a stabilizer bush 1 configured by an elastic bush 2 and a resin block 3, in which a contacting attitude of the resin block 3 with respect to a vehicle side member 20 is constantly appropriate and, in use, generation of noise due to backlash is prevented. <P>SOLUTION: The stabilizer bush 1 is provided with the elastic bush 2 including a penetrating hole 4 and formed in a cylindrical shape, and the resin block 3 for being attached to the elastic bush 2 and sandwiched between the elastic bush 2 and the vehicle side member 20 in an attaching posture to the vehicle side member 20. An opposing surface 3a of the resin block 3 toward the vehicle side member 20 protrudes on a peripheral side of a center portion thereof to the vehicle side member 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、貫通孔を具えた筒状の弾性ブッシュと、弾性ブッシュに取付けられて、車体側部材への取付け姿勢で、弾性ブッシュと車体側部材との間に挟み込まれる樹脂ブロックとからなるスタビライザーブッシュに関し、とくに、スタビライザーブッシュの、車体側部材への取付け状態を安定なものとして、使用時に、スタビライザーブッシュのガタつきに起因する異音の発生を防止する技術を提案するものである。   The present invention is a stabilizer comprising a cylindrical elastic bush provided with a through-hole, and a resin block that is attached to the elastic bush and is sandwiched between the elastic bush and the vehicle body side member in a mounting posture to the vehicle body side member. In particular, the present invention proposes a technique for preventing the generation of abnormal noise due to rattling of the stabilizer bush during use, assuming that the stabilizer bush is mounted in a stable state on the vehicle body side member.

弾性ブッシュに樹脂ブロックを取付けてなるこの種のスタビライザーブッシュは、たとえば特許文献１、２に記載されたものがある。
かかるスタビライザーブッシュを車体側部材に取付けるに当っては、Ｕ字状の連結ブラケットの内側に弾性ブッシュを配置するとともに、弾性ブッシュと車体側部材との間に樹脂ブロックを挟み込んだ状態で、連結ブラケットの端部から外方に延びる一対のフランジを車体側部材に連結固定する。 Examples of this type of stabilizer bush in which a resin block is attached to an elastic bush include those described in Patent Documents 1 and 2.
When attaching the stabilizer bush to the vehicle body side member, the elastic bush is disposed inside the U-shaped connection bracket, and the connection bracket is sandwiched between the elastic bush and the vehicle body side member. A pair of flanges extending outward from the end of the vehicle are connected and fixed to the vehicle body side member.

このスタビライザーブッシュによれば、弾性ブッシュに設けた貫通穴に挿入配置されるスタビライザーバーと、車体側部材との離隔距離に応じて、硬質の樹脂ブロックの寸法を変更することにより、車体側部材に取付けたスタビライザーブッシュによる、スタビライザーバーの弾性支持剛性が所要の大きさとなるように、弾性ブッシュのゴム厚みを規定することができる。   According to this stabilizer bush, by changing the dimensions of the hard resin block according to the separation distance between the stabilizer bar inserted in the through hole provided in the elastic bush and the vehicle body side member, The rubber thickness of the elastic bush can be defined so that the elastic support rigidity of the stabilizer bar by the attached stabilizer bush becomes a required magnitude.

特開２００４−２１０２６２号公報JP 2004-210262 A 特開２００７−１７０６０１号公報JP 2007-170601 A

ところで、特許文献１、２に記載されたようなスタビライザーブッシュは、硬質の樹脂ブロックを直接的に車体側部材に接触させた状態で、車体側部材に取付けることから、樹脂ブロックの、車体側部材への接触面の寸法精度や、車体側部材の表面状態のいかんなどによっては、樹脂ブロックが車体側部材に正確に整合接触しない場合がある。   By the way, the stabilizer bush as described in Patent Documents 1 and 2 is attached to the vehicle body side member in a state where the hard resin block is in direct contact with the vehicle body side member. Depending on the dimensional accuracy of the contact surface to the surface and the surface condition of the vehicle body side member, the resin block may not accurately contact the vehicle body side member.

そしてこの場合は、車体側部材に取付けたスタビライザーブッシュで、スタビライザーバーを保持させて使用に供する際に、車両の左右に位置する一対の車輪の、互いに異なる上下の動きに起因する、スタビライザーバーの捩れ変形などに基き、スタビライザーブッシュに、とくに弾性ブッシュの中心軸線と直交する方向に振れるガタつきが発生し、これによって、樹脂ブロックと、車体側部材との衝接による異音が生じるという問題があった。   And in this case, when the stabilizer bar attached to the vehicle body side member is used for holding the stabilizer bar, the pair of wheels located on the left and right sides of the vehicle are caused by different vertical movements of the stabilizer bar. Based on torsional deformation, etc., the stabilizer bushing is wobbled, especially in the direction perpendicular to the central axis of the elastic bushing, which causes the problem that abnormal noise is generated due to the contact between the resin block and the vehicle body side member. there were.

この発明は、従来技術が抱えるこのような問題を解決することを課題とするものであり、それの目的とするところは、弾性ブッシュと樹脂ブロックとからなるスタビライザーブッシュにおいて、樹脂ブロックと車体側部材との接触姿勢を常に適正なものとして、使用時に、ガタつきに起因する異音の発生を防止したスタビライザーブッシュを提供するにある。   SUMMARY OF THE INVENTION An object of the present invention is to solve such problems of the prior art, and an object of the invention is to provide a stabilizer bush including an elastic bush and a resin block. It is to provide a stabilizer bush that prevents the generation of abnormal noise due to rattling during use when the contact posture is always appropriate.

この発明のスタビライザーブッシュは、貫通孔を具えた筒状の弾性ブッシュと、弾性ブッシュに取付けられて、車体側部材への取付け姿勢で、弾性ブッシュと車体側部材との間に挟み込まれる樹脂ブロックとからなるものであって、前記樹脂ブロックの、車体側部材への対向面を、中央部よりも周縁側で、車体側部材に向けて迫出させてなるものである。   The stabilizer bush of the present invention includes a cylindrical elastic bush provided with a through-hole, a resin block attached to the elastic bush and sandwiched between the elastic bush and the vehicle body side member in a mounting posture to the vehicle body side member. The surface of the resin block facing the vehicle body side member is protruded toward the vehicle body side member on the peripheral side of the center portion.

ここで好ましくは、前記樹脂ブロックの、車体側部材への対向面を方形とし、該方形対向面の四隅のそれぞれに迫出し部を設ける。   Here, preferably, the surface of the resin block facing the vehicle body side member is rectangular, and a protruding portion is provided at each of the four corners of the rectangular facing surface.

この発明のスタビライザーブッシュによれば、樹脂ブロックの、車体側ブロックへの対向面を、中央部よりも周縁側で、車体側部材に向けて迫出させたことにより、スタビライザーブッシュを車体側部材に取付けた場合に、樹脂ブロックが、それの前記対向面の周縁側の迫出させた部分で、車体側部材に当接することになるので、スタビライザーバーの捩れ変形等に起因する、スタビライザーブッシュの、とくに樹脂ブロックの対向面の中央部を中心として左右に振れるガタつきが抑制され、これがため、車体側部材の表面状態によらず、樹脂ブロックの、車体側部材への衝接に起因する異音の発生を有効に防止することができる。   According to the stabilizer bush of the present invention, the surface of the resin block facing the vehicle body side block is pushed out toward the vehicle body side member on the peripheral side of the center portion, so that the stabilizer bush becomes the vehicle body side member. When attached, the resin block comes into contact with the vehicle body side member at the protruding portion on the peripheral side of the facing surface, so the stabilizer bush of the stabilizer bush caused by torsional deformation of the stabilizer bar, In particular, rattling that swings from side to side about the central part of the opposite surface of the resin block is suppressed, and this is why abnormal noise caused by the impact of the resin block on the vehicle body side member regardless of the surface state of the vehicle body side member is suppressed. Can be effectively prevented.

ここで、樹脂ブロックの、車体側部材への対向面を方形とし、該方形対向面の四隅のそれぞれに迫出し部を設けた場合は、スタビライザーブッシュを、樹脂ブロックの四個の迫出し部のそれぞれで車体側部材に接触させることにより、スタビライザーバーからの、弾性ブッシュの中心軸線方向の入力や、その中心軸線と直交する方向の入力に対して、それらの入力の作用位置から左右に略等距離にある各二個の迫出し部が、入力によるガタつきを防止するべく機能することになるので、スタビライザーブッシュの、車体側部材への接触状態をより一層安定なものとすることができる。   Here, when the resin block has a rectangular surface facing the vehicle body side member and provided with a protruding portion at each of the four corners of the rectangular facing surface, the stabilizer bush is connected to the four protruding portions of the resin block. By contacting the body side member with each of them, the input from the stabilizer bar in the direction of the central axis of the elastic bush and the input in the direction perpendicular to the central axis are substantially equal to the left and right from the operation position of those inputs. Since each of the two protruding portions at a distance functions to prevent rattling due to input, the contact state of the stabilizer bush with the vehicle body side member can be further stabilized.

また、この場合は、樹脂ブロックの隅部に設けた各迫出し部で車体側部材に接触させるため、従来のスタビライザーブッシュの樹脂ブロックに比して、車体側部材との接触面積が十分に小さいものとなり、このことから、車体側部材の表面状態が、これらの部材の接触姿勢に及ぼす影響をより効果的に軽減して、常に安定な接触姿勢を確保することができる。   Also, in this case, the contact area with the vehicle body side member is sufficiently small as compared with the resin block of the conventional stabilizer bush, because each protruding portion provided at the corner of the resin block is brought into contact with the vehicle body side member. Therefore, the influence of the surface state of the vehicle body side member on the contact posture of these members can be reduced more effectively, and a stable contact posture can always be ensured.

さらには、このように、スタビライザーブッシュを、樹脂ブロックの迫出し部で車体側部材に接触させたときは、スタビライザーブッシュが使用に供されて、これらの迫出し部がある程度摩耗した場合であっても、スタビライザーバーからの入力によるガタつきを十分有効に防止することができる。
そしてこのことは、迫出し部を含むスタビライザーブッシュの背丈が、それを車体側部材に取付けるためのＵ字状連結ブラケットの内側の寸法よりも大きく、スタビライザーブッシュが、それの弾性ブッシュのゴム部分の圧縮変形姿勢で、車体側部材に取付けられる場合に、より一層効果的である。 Furthermore, in this way, when the stabilizer bush is brought into contact with the vehicle body side member at the protruding portion of the resin block, the stabilizer bush is used for use, and these protruding portions are worn to some extent. However, it is possible to effectively prevent the rattling caused by the input from the stabilizer bar.
And this means that the height of the stabilizer bush including the protruding portion is larger than the inside dimension of the U-shaped connection bracket for attaching it to the vehicle body side member, and the stabilizer bush is the rubber portion of the elastic bush. It is even more effective when attached to the vehicle body side member in the compression deformation posture.

この発明の一の実施の形態を示す斜視図である。It is a perspective view showing one embodiment of this invention. 樹脂ブロックに設けた迫出し部の変形例を示す斜視図である。It is a perspective view which shows the modification of the protrusion part provided in the resin block. 他の実施の形態を示す斜視図である。It is a perspective view which shows other embodiment. 図１に示すスタビライザーブッシュの、車体側部材への取付け状態を示す正面図である。It is a front view which shows the attachment state to the vehicle body side member of the stabilizer bush shown in FIG.

以下に図面を参照しつつ、この発明の実施の形態について説明する。
図１に例示するスタビライザーブッシュ１は、ゴム材料などの弾性部材からなる筒状の弾性ブッシュ２と、弾性ブッシュ２に形成した平坦面に、たとえば図示しない係合部によって取付けた、図では略立方体形状の樹脂ブロック３とからなる。 Embodiments of the present invention will be described below with reference to the drawings.
A stabilizer bush 1 illustrated in FIG. 1 includes a cylindrical elastic bush 2 made of an elastic member such as a rubber material, and a flat surface formed on the elastic bush 2 by, for example, an engagement portion (not shown). It consists of a resin block 3 having a shape.

ここで、この発明のスタビライザーブッシュ１では、樹脂ブロック３の、弾性ブッシュ２との取付け面と対抗する面、つまり、後述する車体側部材への対向面３ａの各隅部のそれぞれに、四個の、ここでは方形ブロック状の迫出し部３ｂを形成する。   Here, in the stabilizer bush 1 of the present invention, four pieces are provided at each corner of the surface of the resin block 3 that opposes the mounting surface with the elastic bush 2, that is, the opposite surface 3 a to the vehicle body side member described later. Here, a rectangular block-shaped protruding portion 3b is formed.

スタビライザーブッシュ１を、四個の迫出し部３ｂで車体側部材に接触させて取付けることによって、弾性ブッシュ２に形成した貫通孔４に挿入配置される、図示しないスタビライザーバーからの入力が作用しても、車体側部材の表面状態のいかんによらず、スタビライザーブッシュ１のガタつきを有効に抑制することができる。   By attaching the stabilizer bush 1 in contact with the vehicle body side member by the four protruding portions 3b, an input from a stabilizer bar (not shown) that is inserted into the through hole 4 formed in the elastic bush 2 acts. However, the backlash of the stabilizer bush 1 can be effectively suppressed regardless of the surface state of the vehicle body side member.

樹脂ブロック３に設けたこの迫出し部３ｂは、図１に示す形状、配置の他に、たとえば、図２（ａ）〜（ｃ）に例示するような様々な形状、配置とすることができる。
具体的には、図２（ａ）に示すものは、弾性ブッシュ２の貫通孔４の中心軸線Ｃ方向と平行に延在する直方体形状の迫出し部３ｂを、樹脂ブロック３の、車体側部材への対向面３ａの、図の左右の両端部のそれぞれに各一個設けたものである。 The protruding portion 3b provided on the resin block 3 can have various shapes and arrangements as exemplified in FIGS. 2A to 2C, in addition to the shape and arrangement shown in FIG. .
Specifically, what is shown in FIG. 2A is a rectangular parallelepiped shaped protruding portion 3b extending in parallel with the direction of the central axis C of the through hole 4 of the elastic bushing 2, and a vehicle body side member of the resin block 3. One surface is provided on each of the left and right ends of the figure on the opposite surface 3a.

また、図２（ｂ）に示す迫出し部３ｂは、貫通孔４の中心軸線Ｃと直交する向きに延在する直方体形状とし、一対のこの迫出し部３ｂを、樹脂ブロック３の対向面３ａの、図の上下の両端部のそれぞれに形成してなる。
そして、図２（ｃ）に示すものは、樹脂ブロック３の対向面３ａの中央部に窪みを設けることによって、その対向面３ａの周縁に迫出し部３ｂを形成したものである。なお、図に示すところでは、対向面３ａの中央部の窪み底面は方形としたが、これを円形、多角形などの各種の形状とすることもできる。 2 (b) has a rectangular parallelepiped shape extending in a direction orthogonal to the central axis C of the through hole 4, and the pair of the protruding portions 3b are opposed surfaces 3a of the resin block 3. It is formed on each of the upper and lower ends of the figure.
And what is shown in FIG.2 (c) forms the protrusion part 3b in the peripheral part of the opposing surface 3a by providing a hollow in the center part of the opposing surface 3a of the resin block 3. FIG. In addition, in the figure, although the hollow bottom face of the center part of the opposing surface 3a was made into square, this can also be made into various shapes, such as circular and a polygon.

なおここで、樹脂ブロック３の方形対向面３ａの四隅部のそれぞれに、独立した、または連続した迫出し部３ｂを設けたスタビライザーブッシュ１では、図３に示すように、対向面３ａの、迫出し部３ｂ以外の部分に肉盗みを設けることができ、これにより、射出成形後の、樹脂ブロック３の収縮に起因する、いわゆるヒケによる平面のガタつきの発生を防止することができる。   Here, in the stabilizer bush 1 provided with independent or continuous protruding portions 3b at the four corners of the rectangular opposing surface 3a of the resin block 3, as shown in FIG. Meat stealing can be provided in parts other than the delivery part 3b, and thereby it is possible to prevent the occurrence of backlash due to so-called sink caused by shrinkage of the resin block 3 after injection molding.

ところで、弾性ブッシュ２の貫通孔４に挿入配置されることになるスタビライザーバーとの摩擦力の軽減を図るためには、貫通孔４の内周面に、全体的にもしくは部分的にテフロン（登録商標）加工を施すことができる。   By the way, in order to reduce the frictional force with the stabilizer bar to be inserted and arranged in the through hole 4 of the elastic bush 2, the Teflon (registered) is formed on the inner peripheral surface of the through hole 4 in whole or in part. Trademark) can be applied.

たとえば、図１に示すスタビライザーブッシュ１を車体側部材に取付けるには、図４に正面図で示すように、略倒立Ｕ字状断面の連結ブラケット１０の内周面に、スタビライザーブッシュ１の弾性ブッシュ２の外周面を整合させて配置するとともに、弾性ブッシュ２と車体側部材１０との間に樹脂ブロック３を挟み込んだ状態で、連結ブラケット１０の端部のそれぞれに設けた一対のフランジ１０ａを、ねじ等で車体側部材２０に連結固定する。   For example, to attach the stabilizer bush 1 shown in FIG. 1 to the vehicle body side member, as shown in the front view of FIG. 4, the elastic bush of the stabilizer bush 1 is formed on the inner peripheral surface of the connection bracket 10 having a substantially inverted U-shaped cross section. A pair of flanges 10a provided at each of the end portions of the connecting bracket 10 with the resin block 3 sandwiched between the elastic bush 2 and the vehicle body side member 10 It is connected and fixed to the vehicle body side member 20 with screws or the like.

ここにおいて、弾性ブッシュ２の貫通孔４に、図示しないスタビライザーバーを挿入配置して、スタビライザーブッシュ１を使用に際して、車両の左右の車輪が上下に異なる動きをしたときに生じる、スタビライザーバーの捩れ変形により、弾性ブッシュ２は、それの中心軸線方向や、中心軸線と直交する方向（図４に矢印で示す方向）に振れようとするが、この発明では、樹脂ブロック３の、車体側部材への対向面３ａに、ここでは四個の迫出し部３ｂを設けたことから、中心軸線方向および、中心軸線と直交する方向へのガタつきが有効に抑制されて、このガタつきによる異音の発生を有効に防止することができる。   Here, a stabilizer bar (not shown) is inserted and disposed in the through hole 4 of the elastic bushing 2, and when the stabilizer bush 1 is used, the torsional deformation of the stabilizer bar that occurs when the left and right wheels of the vehicle move differently up and down. Thus, the elastic bush 2 tends to swing in the direction of the central axis thereof or in the direction orthogonal to the central axis (the direction indicated by the arrow in FIG. 4). In the present invention, the resin block 3 is moved toward the vehicle body side member. Since the four protruding portions 3b are provided on the facing surface 3a, the play in the central axis direction and the direction perpendicular to the central axis line is effectively suppressed, and the generation of noise due to the play is generated. Can be effectively prevented.

１ スタビライザーブッシュ
２ 弾性ブッシュ
３ 樹脂ブロック
３ａ 車体側部材への対向面
３ｂ 迫出し部
４ 貫通孔
１０ 連結ブラケット
１０ａ フランジ
２０ 車体側部材
Ｃ 貫通孔の中心軸線 DESCRIPTION OF SYMBOLS 1 Stabilizer bush 2 Elastic bush 3 Resin block 3a Opposite surface to vehicle body side member 3b Extrusion part 4 Through hole 10 Connecting bracket 10a Flange 20 Vehicle body side member C Center axis of through hole

Claims (2)

貫通孔を具えた筒状の弾性ブッシュと、弾性ブッシュに取付けられて、車体側部材への取付け姿勢で、弾性ブッシュと車体側部材との間に挟み込まれる樹脂ブロックとからなるスタビライザーブッシュであって、
前記樹脂ブロックの、車体側部材への対向面を、中央部よりも周縁側で、車体側部材に向けて迫出させてなるスタビライザーブッシュ。 A stabilizer bush comprising: a cylindrical elastic bush having a through hole; and a resin block that is attached to the elastic bush and is sandwiched between the elastic bush and the vehicle body side member in a mounting posture to the vehicle body side member. ,
A stabilizer bush formed by causing the surface of the resin block facing the vehicle body side member to protrude toward the vehicle body side member on the peripheral side of the center portion. 前記樹脂ブロックの、車体側部材への対向面を方形とし、該方形対向面の四隅のそれぞれに迫出し部を設けてなる請求項１に記載のスタビライザーブッシュ。   2. The stabilizer bush according to claim 1, wherein a surface of the resin block facing the vehicle body side member is square, and a protruding portion is provided at each of the four corners of the square facing surface.
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CN108501651A (en) * 2017-02-28 2018-09-07 住友理工株式会社 Lining of stabilizer

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Publication number Priority date Publication date Assignee Title
CN108501651A (en) * 2017-02-28 2018-09-07 住友理工株式会社 Lining of stabilizer
US10753417B2 (en) 2017-02-28 2020-08-25 Sumitomo Riko Company Limited Stabilizer bush
CN108501651B (en) * 2017-02-28 2021-03-16 住友理工株式会社 Stabilizer bushing

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