JP2014114885A - Toe correction bush - Google Patents

Toe correction bush Download PDF

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JP2014114885A
JP2014114885A JP2012269506A JP2012269506A JP2014114885A JP 2014114885 A JP2014114885 A JP 2014114885A JP 2012269506 A JP2012269506 A JP 2012269506A JP 2012269506 A JP2012269506 A JP 2012269506A JP 2014114885 A JP2014114885 A JP 2014114885A
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vehicle
inner cylinder
respect
plate member
notch
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JP5973899B2 (en
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Tomoaki Nakamura
智昭 中村
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Bridgestone Corp
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Bridgestone Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a low cost toe correction bush that can generate toe correction function in a simple configuration.SOLUTION: Toe correction bushes 7, 8 are configured such that inner cylinders 10 are connected with outer cylinders 11 by rubber bodies 16, and flange sections 12 are connected with plate members 13 by the rubber bodies 16. The toe correction bush is provided with a notch part 20, which is recessed toward the side of the inner cylinder 10 on an outer circumferential surface of at least either one of the portion of the vehicle front side or the portion of the vehicle rear side with respect to the inner cylinder 10 between the flange section 12 and the plate member 13 of the rubber body 16, and in which a bottom part 20a is deviated outward in the vehicle with respect to an axial direction center position P between the flange section 12 and the plate member 13. Also, an outer circumferential surface of a portion between the flange section 12 and the plate member 13 of the rubber body 16 is formed in a shape that is not axially symmetric in the vehicle front side and vehicle rear side.

Description

本発明は、トーションビーム式サスペンションに用いられるトーコレクトブッシュに関する。   The present invention relates to a toe collect bush used for a torsion beam type suspension.

従来から、例えば特許文献１に示されるように、自動車等の車両の、例えばリアサスペンションとして用いられるトーションビーム式サスペンションのトレーリングアームを、車体へ連結するためのブッシュとして、トーコレクトブッシュを用いることが知られている。このトーコレクトブッシュによれば、車両の旋回時に、車輪側から外筒に横力が加えられると、外筒が弾性体を弾性変形させながら傾斜部に沿って移動するので、車輪のトー方向を、操舵輪の操舵方向と同方向に向けて補正する、いわゆるトーコレクト機能をもって、車両の走行安定性を高めることができる。   Conventionally, for example, as shown in Patent Document 1, a toe collect bush has been used as a bush for connecting a trailing arm of a torsion beam type suspension used in a vehicle such as an automobile to a vehicle body, for example, as a rear suspension. Are known. According to the toe collect bush, when a lateral force is applied to the outer cylinder from the wheel side during turning of the vehicle, the outer cylinder moves along the inclined portion while elastically deforming the elastic body. The vehicle running stability can be enhanced by a so-called to collect function that corrects the steering wheel in the same direction as the steering direction.

特開２００２−１７８７３５号公報JP 2002-178735 A

しかしながら上記従来のトーコレクトブッシュでは、トーコレクト機能を生じさせるために、フランジ部とプレート部材とが、それぞれその周方向の一部分にのみ傾斜部を有する複雑な形状に形成されるので、これらの部材の製造工数が増大しコストが高くなるという問題があった。   However, in the above conventional toe collect bush, the flange part and the plate member are formed in a complicated shape having an inclined part only in a part of the circumferential direction in order to produce a to collect function. There was a problem that the manufacturing man-hours of the product increased and the cost increased.

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、その目的とするところは、簡易な構成でトーコレクト機能を生じさせることができる、低コストのトーコレクトブッシュを提供することにある。   An object of the present invention is to solve such problems of the prior art, and the object of the present invention is to provide a low-cost to collect function that can generate a to collect function with a simple configuration. To provide a bush.

本発明のトーコレクトブッシュは、車両のトーションビーム式サスペンションを構成するトレーリングアームの、車体への連結部分に用いられる、トーコレクトブッシュであって、内筒と、前記内筒の径方向外側において前記内筒と同軸に配置される外筒と、前記外筒の軸方向の一端から径方向外側に向けて延び、該外筒の軸方向に対する傾斜角度が全周に亘って一定のフランジ部と、前記内筒から径方向外側に向けて延び、前記フランジ部に対して軸方向に間隔を空けて配置されるプレート部材と、前記外筒を前記内筒に連結するとともに、前記フランジ部と前記プレート部とを連結する弾性体と、を有し、前記弾性体は、前記フランジ部と前記プレート部材との間において、前記車体への取付け姿勢の下で前記内筒に対して車両前方側となる部分または車両後方側となる部分のうち少なくともいずれか一方の部分の外周面に前記内筒の側へ向けて凹む切欠き部を備え、前記内筒に対して車両前方側に設けられた前記切欠き部の底部は、前記フランジ部と前記プレート部材との軸方向中心位置に対して車両内側にずらして設けられ、前記内筒に対して車両後方側に設けられた前記切欠き部の底部は、前記フランジ部と前記プレート部材との軸方向中心位置に対して、車両外側にずらして設けられ、前記弾性体は、前記フランジ部と前記プレート部材との間において、前記内筒に対する車両前方側の部分の外周面と車両後方側の部分の外周面とが、軸対称でない形状であることを特徴とする。
この構成によれば、弾性体はフランジ部とプレート部材との間の部分の外周面に、底部がフランジ部とプレート部との軸方向中心位置に対して軸方向の一方側にずれた切欠き部を備えることでトーコレクト機能を生じさせることができるので、フランジ部とプレート部材とをその周方向の一部にのみ傾斜部が設けられた複雑な形状とすることなく、これらを簡易な構成としてトーコレクトブッシュの製造工数やコストを低減することができる。 The toe collect bush of the present invention is a toe collect bush used for a connecting portion to a vehicle body of a trailing arm constituting a torsion beam type suspension of a vehicle, wherein the toe collect bush is arranged on the outer side in the radial direction of the inner cylinder and the inner cylinder. An outer cylinder disposed coaxially with the inner cylinder, a flange portion extending radially outward from one axial end of the outer cylinder, and having a constant inclination angle with respect to the axial direction of the outer cylinder over the entire circumference; A plate member extending radially outward from the inner cylinder and disposed at an axial interval with respect to the flange portion, and connecting the outer cylinder to the inner cylinder, and the flange portion and the plate And an elastic body that connects the front portion and the elastic body between the flange portion and the plate member with respect to the inner cylinder under the mounting posture to the vehicle body. A notch portion that is recessed toward the inner cylinder side on the outer peripheral surface of at least one of the part to be the vehicle rear side or the vehicle rear side part, and provided on the vehicle front side with respect to the inner cylinder The bottom portion of the notch portion is provided to be shifted toward the vehicle inner side with respect to the axial center position of the flange portion and the plate member, and the bottom portion of the notch portion provided on the vehicle rear side with respect to the inner cylinder Is provided on the outside of the vehicle with respect to the axial center position of the flange portion and the plate member, and the elastic body is located between the flange portion and the plate member in front of the inner cylinder. The outer peripheral surface of the side portion and the outer peripheral surface of the vehicle rear side portion have a shape that is not axially symmetric.
According to this configuration, the elastic body has a notch in which the bottom portion is shifted to one axial side with respect to the axial center position of the flange portion and the plate portion on the outer peripheral surface of the portion between the flange portion and the plate member. Since the to-collect function can be generated by providing the portion, the flange portion and the plate member can be simply configured without having a complicated shape in which the inclined portion is provided only in a part of the circumferential direction. As a result, it is possible to reduce the manufacturing man-hours and costs of the to-collect bush.

また、前記弾性体は、前記フランジ部と前記プレート部材との間において、前記内筒に対する車両前方側の部分と車両後方側の部分の両方の外周面に、それぞれ前記切欠き部を設けるのが好ましい。
この構成によれば、弾性体の内筒に対して車両前方側と車両後方側の両側の部分でトーコレクト機能を生じさせることができるので、車両旋回時に、弾性体に加わる負荷を内筒を挟んだ車両前方側と車両後方側とに均等に分散させて弾性体の耐久性を高めることができる。 Further, the elastic body is provided with the notch portions on the outer peripheral surfaces of both the vehicle front side portion and the vehicle rear side portion with respect to the inner cylinder between the flange portion and the plate member. preferable.
According to this configuration, since the to-collect function can be generated at both the vehicle front side and the vehicle rear side with respect to the inner cylinder of the elastic body, the load applied to the elastic body during the turning of the vehicle It is possible to increase the durability of the elastic body by evenly dispersing the vehicle between the vehicle front side and the vehicle rear side.

さらに、前記プレート部材には、前記フランジ部の側へ向けて突出する凸部を設けるのが好ましい。
この構成によれば、プレート部材とフランジ部との間の弾性体の凸部に設けられた部分の軸方向寸法を低減させて当該部分における弾性体のばね定数を高めることができるので、弾性体のフランジ部とプレート部材との間の部分の外周面に切欠き部を設けるようにしても、フランジ部とプレート部材との間における弾性体の弾性力を確保して、車両旋回時に加えられる横力を弾性体に確実に支持させることができる。 Furthermore, it is preferable that the plate member is provided with a convex portion protruding toward the flange portion.
According to this configuration, since the axial dimension of the portion provided in the convex portion of the elastic body between the plate member and the flange portion can be reduced and the spring constant of the elastic body in the portion can be increased, the elastic body Even if a notch is provided on the outer peripheral surface of the portion between the flange portion and the plate member, the elastic force of the elastic body between the flange portion and the plate member is ensured, and the lateral force applied when the vehicle turns The force can be reliably supported by the elastic body.

さらに、前記フランジ部と前記プレート部材との間の、前記内筒に対する車両前方側の部分または車両後方側の部分の、いずれか一方の外周面にのみ前記切欠き部を設け、前記プレート部材の、前記切欠き部に対して、前記内筒の軸心を中心とした軸対称の位置に、前記フランジ部の側へ向けて突出する凸部を設けるのが好ましい。
この構成によれば、凸部によりプレート部材とフランジ部との間の弾性体のばね定数を高めて、車両旋回時に加えられる横力を弾性体に確実に支持させつつ切欠き部にトーコレクト機能を最大限に発揮させることができる。 Furthermore, the notch portion is provided only on one outer peripheral surface of the vehicle front side portion or the vehicle rear side portion with respect to the inner cylinder between the flange portion and the plate member, In addition, it is preferable to provide a protruding portion that protrudes toward the flange portion at an axially symmetric position with respect to the notch portion with the axis of the inner cylinder as a center.
According to this configuration, the convex portion increases the spring constant of the elastic body between the plate member and the flange portion, and the lateral force applied when turning the vehicle is reliably supported by the elastic body while the toe collect function is provided at the notch portion. Can be maximized.

本発明によれば、簡易な構成でトーコレクト機能を生じさせることができる、低コストのトーコレクトブッシュを提供することができる。   According to the present invention, it is possible to provide a low-cost to collect bush that can generate a to collect function with a simple configuration.

本発明の一実施の形態であるトーコレクトブッシュが用いられたトーションビーム式サスペンションの構成を概略で示す上面図である。It is a top view which shows roughly the structure of the torsion beam type suspension using the toe collect bush which is one embodiment of this invention. 図１に示すトーコレクトブッシュの縦断面図である。It is a longitudinal cross-sectional view of the toe collect bush shown in FIG. 図２に示すトーコレクトブッシュの平面図である。FIG. 3 is a plan view of the toe collect bush shown in FIG. 2. 図２に示すトーコレクトブッシュの変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of the toe collect 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例示説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１に示すトーションビーム式サスペンション１は、例えば自動車等の車両のリアサスペンションとして用いられるものである。このトーションビーム式サスペンション１は、車両の右側の後輪２が取り付けられる右側のトレーリングアーム３と、車両の左側の後輪４が取り付けられる左側のトレーリングアーム５とを備え、これらのトレーリングアーム３，５は、車幅方向に延びるトーションビーム６により互いに連結されている。また、これらのトレーリングアーム３，５は、それぞれ、その車両前方側の端部において、本発明の一実施の形態であるトーコレクトブッシュ７，８を介して、車体９に回動自在に連結されている。   A torsion beam suspension 1 shown in FIG. 1 is used as a rear suspension of a vehicle such as an automobile. The torsion beam suspension 1 includes a right trailing arm 3 to which the right rear wheel 2 of the vehicle is attached and a left trailing arm 5 to which the left rear wheel 4 of the vehicle is attached. 3 and 5 are mutually connected by a torsion beam 6 extending in the vehicle width direction. Further, these trailing arms 3 and 5 are rotatably connected to the vehicle body 9 via the toe collect bushes 7 and 8 according to an embodiment of the present invention, at the front end portions of the vehicle, respectively. Has been.

右側のトレーリングアーム３の、車体９への連結部分に用いられるトーコレクトブッシュ７と、左側のトレーリングアーム５の、車体９への連結部分に用いられるトーコレクトブッシュ８は、互いに左右逆向きに配置されるが、その構造は基本的に同一であるので、以下では、本発明のトーコレクトブッシュの構造について、主に右側のトーコレクトブッシュ７に基づいて説明する。   The toe collect bush 7 used for the connecting part of the right trailing arm 3 to the vehicle body 9 and the toe collect bush 8 used for the connecting part of the left trailing arm 5 to the vehicle body 9 are opposite to each other. However, in the following, the structure of the toe collect bush of the present invention will be described mainly based on the right toe collect bush 7.

図２に示すように、本発明のトーコレクトブッシュ７は、内筒１０と外筒１１とを有している。
内筒１０は、例えば鋼材等により軸心に貫通孔１０ａを有する真っ直ぐな軸状に形成されており、後述のようにその軸心を中心として車体９に回動自在に連結される。
一方外筒１１は、例えば鋼板等の金属板をプレス加工することにより内筒１０よりも大径、且つ内筒１０よりも軸方向寸法が短い円筒状に形成されている。外筒１１は、内筒１０の径方向外側つまり外周側に、内筒１０と同軸に配置されており、内筒１０と外筒１１の間には径方向に間隔が設けられている。 As shown in FIG. 2, the toe collect bush 7 of the present invention has an inner cylinder 10 and an outer cylinder 11.
The inner cylinder 10 is formed in a straight shaft shape having a through hole 10a in the shaft center, for example, of a steel material or the like, and is rotatably connected to the vehicle body 9 around the shaft center as described later.
On the other hand, the outer cylinder 11 is formed in a cylindrical shape having a larger diameter than the inner cylinder 10 and a shorter axial dimension than the inner cylinder 10 by pressing a metal plate such as a steel plate. The outer cylinder 11 is arranged coaxially with the inner cylinder 10 on the outer side in the radial direction of the inner cylinder 10, that is, on the outer peripheral side, and a gap is provided between the inner cylinder 10 and the outer cylinder 11 in the radial direction.

外筒１１の軸方向の一端には、その全周に亘ってフランジ部１２が設けられている。このフランジ部１２は外筒１１の一端から径方向外側に向けて、外筒１１の軸方向に対して垂直に延びた平板状に形成されている。図示する場合では、フランジ部１２はその全周に亘って外筒１１の軸方向に垂直に延びた形状に形成されているが、外筒１１の軸方向に対する傾斜角度が全周に亘って一定であれば、フランジ部１２を当該軸方向に対して垂直以外の角度で傾斜するテーパ状に形成することもできる。また、図示する場合では、フランジ部１２は外筒１１の軸方向端部を径方向外側に折り曲げることで外筒１１と一体に形成されているが、逆にフランジ部１２に対して外筒１１を折り曲げてもよく、外筒１１とは別体に形成したフランジ部１２を溶接等の固定手段により外筒１１に固定する構造としてもよい。また、外筒１１のフランジ部１２と同様に内筒１０の軸方向の一端から延びる構成としてもよい。   At one end of the outer cylinder 11 in the axial direction, a flange portion 12 is provided over the entire circumference. The flange portion 12 is formed in a flat plate shape extending perpendicularly to the axial direction of the outer cylinder 11 from one end of the outer cylinder 11 toward the outer side in the radial direction. In the case shown in the figure, the flange portion 12 is formed in a shape extending perpendicularly to the axial direction of the outer cylinder 11 over the entire circumference, but the inclination angle of the outer cylinder 11 with respect to the axial direction is constant over the entire circumference. If it is, the flange part 12 can also be formed in the taper shape which inclines at an angle other than perpendicular | vertical with respect to the said axial direction. In the illustrated case, the flange portion 12 is formed integrally with the outer tube 11 by bending the axial end of the outer tube 11 outward in the radial direction, but conversely the outer tube 11 with respect to the flange portion 12. The flange portion 12 formed separately from the outer cylinder 11 may be fixed to the outer cylinder 11 by fixing means such as welding. Moreover, it is good also as a structure extended from the end of the axial direction of the inner cylinder 10 similarly to the flange part 12 of the outer cylinder 11. FIG.

内筒１０には、その軸方向端の近傍にプレート部材１３が固定されている。プレート部材１３は、例えば鋼板等により、内筒１０の径方向外側に向けて内筒１０の軸方向に垂直に延びる平板状に形成されている。このプレート部材１３はフランジ部１２に対して軸方向に所定の間隔を空けて配置され、当該位置において溶接や圧入等の手段により内筒１０の外周面に固定されている。なお、プレート部材１３を内筒１０と一体の構成とするようにしてもよい。   A plate member 13 is fixed to the inner cylinder 10 in the vicinity of its axial end. The plate member 13 is formed in a flat plate shape that extends perpendicularly to the axial direction of the inner cylinder 10 toward the radially outer side of the inner cylinder 10, for example, using a steel plate or the like. The plate member 13 is disposed at a predetermined interval in the axial direction with respect to the flange portion 12, and is fixed to the outer peripheral surface of the inner cylinder 10 by means such as welding or press fitting at the position. The plate member 13 may be integrated with the inner cylinder 10.

内筒１０とプレート部材１３とで構成される内側部材１４と、外筒１１とフランジ部１２とで構成される外側部材１５との間には、弾性体としてゴム体１６が配置されている。弾性体としては、ゴム体１６に代えて熱可塑性エラストマー等を用いることもできる。このゴム体１６は加硫接着等の手段により、内筒１０の外周面、外筒１１の内周面、フランジ部１２のプレート部材１３に対向する側の面およびプレート部材１３のフランジ部１２に対向する側の面にそれぞれ固着している。これにより、外筒１１は内筒１０にゴム体１６により弾性的に連結され、フランジ部１２はプレート部材１３にゴム体１６により弾性的に連結されている。つまり、内側部材１４と外側部材１５とがゴム体１６により連結されている。このゴム体１６は、外筒１１と内筒１０との間の第１部分１６ａにおいてこのトーコレクトブッシュ７に加わる径方向荷重を支持し、フランジ部１２とプレート部材１３の間の第２部分１６ｂにおいてこのトーコレクトブッシュ７に加わる軸方向荷重を支持する。そして、外側部材１５は、ゴム体１６が弾性変形することにより内側部材１４に対して軸方向および径方向に変位することができる。
ゴム体１６の第１部分１６ａには、そのプレート部材１３側とは反対側を向く端面から軸方向に沿って延びる複数の切り抜き孔１６ｃが設けられている。また、プレート部材１３のフランジ部１２側とは反対側を向く面にはゴムシート１７が固着されている。 A rubber body 16 is disposed as an elastic body between an inner member 14 constituted by the inner cylinder 10 and the plate member 13 and an outer member 15 constituted by the outer cylinder 11 and the flange portion 12. As the elastic body, a thermoplastic elastomer or the like can be used instead of the rubber body 16. The rubber body 16 is attached to the outer peripheral surface of the inner cylinder 10, the inner peripheral surface of the outer cylinder 11, the surface of the flange portion 12 facing the plate member 13, and the flange portion 12 of the plate member 13 by means such as vulcanization adhesion. It is fixed to the opposite side surfaces. Thereby, the outer cylinder 11 is elastically connected to the inner cylinder 10 by the rubber body 16, and the flange portion 12 is elastically connected to the plate member 13 by the rubber body 16. That is, the inner member 14 and the outer member 15 are connected by the rubber body 16. The rubber body 16 supports a radial load applied to the toe collect bush 7 in the first portion 16 a between the outer cylinder 11 and the inner cylinder 10, and a second portion 16 b between the flange portion 12 and the plate member 13. The axial load applied to the toe collect bush 7 is supported. The outer member 15 can be displaced in the axial direction and the radial direction with respect to the inner member 14 by the elastic deformation of the rubber body 16.
The first portion 16a of the rubber body 16 is provided with a plurality of cutout holes 16c extending along the axial direction from an end surface facing the side opposite to the plate member 13 side. A rubber sheet 17 is fixed to the surface of the plate member 13 that faces away from the flange portion 12 side.

左右のトーコレクトブッシュ７，８は、それぞれ図１に示すように、内筒１０の貫通孔１０ａにボルト１８が挿通され、このボルト１８が車体９に設けられた一対のブラケット９ａにナット１９で固定されることにより、ボルト１８を軸心として回動自在に車体９に連結される。本実施の形態においては、左右のトーコレクトブッシュ７，８は、それぞれ外筒１１に対してフランジ部１２とプレート部材１３とが車体外側に位置する向きで車体９に取り付けられる。そして、右側のトーコレクトブッシュ７の外筒１１には右側のトレーリングアーム３が圧入等の手段により連結され、左側のトーコレクトブッシュ８の外筒１１には左側のトレーリングアーム５が圧入等の手段により連結されている。   As shown in FIG. 1, the left and right toe collect bushes 7, 8 are each inserted with a bolt 18 through a through hole 10 a of the inner cylinder 10, and the bolt 18 is connected to a pair of brackets 9 a provided on the vehicle body 9 with nuts 19. By being fixed, it is connected to the vehicle body 9 so as to be rotatable about the bolt 18 as an axis. In the present embodiment, the left and right toe collect bushes 7 and 8 are attached to the vehicle body 9 in such a direction that the flange portion 12 and the plate member 13 are positioned on the outer side of the vehicle body with respect to the outer cylinder 11, respectively. The right trailing arm 3 is connected to the outer cylinder 11 of the right toe collect bush 7 by means such as press fitting, and the left trailing arm 5 is press fitted to the outer cylinder 11 of the left toe collect bush 8. It is connected by means of.

このような構成により、各トレーリングアーム３，５は、トーコレクトブッシュ７，８を支点として回動して車両のサスペンションとして機能することができる。また、内筒１０と外筒１１との間のゴム体１６の第１部分１６ａによりボルト１８を介して内筒１０に加わる車両の荷重を弾性的に支持することができ、フランジ部１２とプレート部材１３との間のゴム体１６の第２部分１６ｂにより車両の旋回時に後輪２，４からトレーリングアーム３，５を介して外筒１１に伝達される横力を弾性的に支持することができる。さらに、ゴム体１６により後輪２，４の側からトレーリングアーム３，５を介して車体９に伝達される振動を低減することができる。   With such a configuration, each of the trailing arms 3 and 5 can function as a vehicle suspension by rotating about the toe collect bushes 7 and 8 as fulcrums. Further, the first portion 16a of the rubber body 16 between the inner cylinder 10 and the outer cylinder 11 can elastically support the vehicle load applied to the inner cylinder 10 via the bolt 18, and the flange portion 12 and the plate The second portion 16b of the rubber body 16 with the member 13 elastically supports the lateral force transmitted from the rear wheels 2 and 4 to the outer cylinder 11 via the trailing arms 3 and 5 when the vehicle turns. Can do. Further, the vibration transmitted from the rear wheels 2 and 4 to the vehicle body 9 via the trailing arms 3 and 5 by the rubber body 16 can be reduced.

本発明のトーコレクトブッシュ７，８は、車両の旋回時にゴム体１６の弾性変形により後輪２，４のトー方向が操舵輪とは逆位相の方向へ向くことを防止するため、つまりトーコレクト機能を生じさせるために、ゴム体１６の第２部分１６ｂのフランジ部１２とプレート部材１３との間から露出する外周面に切欠き部（すぐり部）２０を設けている。
図２に示す本実施の形態においては、切欠き部２０はゴム体１６の第２部分１６ｂの内筒１０に対して車両前方側の部分の外周面に設けられる。換言すれば、本発明のトーコレクトブッシュ７，８は、切欠き部２０のある側が車両の前方側となるように車両に取付けられる。切欠き部２０のある側が内筒１０に対して車両前方側の部分の外周面に設けられるとは、トレーリングアーム３，５がトーコレクトブッシュ７，８を支点として所定のストロークの範囲内で上下方向に揺動しても、常に切欠き部２０の半分以上の部分が内筒１０に対して車両前方側に位置するように設けられるということである。 The toe collect bushes 7 and 8 according to the present invention prevent the toe direction of the rear wheels 2 and 4 from turning in the opposite phase to the steered wheels due to the elastic deformation of the rubber body 16 when the vehicle turns. In order to generate the function, a notch (straight portion) 20 is provided on the outer peripheral surface exposed from between the flange portion 12 of the second portion 16 b of the rubber body 16 and the plate member 13.
In the present embodiment shown in FIG. 2, the notch 20 is provided on the outer peripheral surface of the front portion of the vehicle with respect to the inner cylinder 10 of the second portion 16 b of the rubber body 16. In other words, the toe collect bushes 7 and 8 of the present invention are attached to the vehicle such that the side with the notch 20 is the front side of the vehicle. The fact that the side with the notch 20 is provided on the outer peripheral surface of the vehicle front side with respect to the inner cylinder 10 means that the trailing arms 3 and 5 are within a predetermined stroke range with the toe collect bushes 7 and 8 as fulcrums. This means that even if the rocking is made in the up-down direction, more than half of the notch 20 is always provided on the vehicle front side with respect to the inner cylinder 10.

図２、図３に示すように、切欠き部２０は、ゴム体１６の第２部分１６ｂの外周面の一部をその弦方向へ向けて真っ直ぐに切り欠いた形状に形成されている。つまり、切欠き部２０は、内筒１０の側へ向けて凹む底部２０ａが弦方向に沿って真っ直ぐに延びる凹形状となっている。また、図２に示すように、切欠き部２０はその底部２０ａ、つまり最も深く切り込まれた位置がフランジ部１２とプレート部材１３の間の軸方向の中心位置Ｐに対して車両の内側にずれて設けられている。したがって、フランジ部１２の表面から底部２０ａまでの軸方向距離は、プレート部材１３の表面から底部２０ａまでの軸方向距離よりも短くなっている。また、切欠き部２０のフランジ部１２と底部２０ａとの間の第１内面２０ｂは、プレート部材１３と底部２０ａとの間の第２内面２０ｃよりも内筒１０の軸方向に対する傾斜角度が大きくなっている。
As shown in FIGS. 2 and 3, the notch 20 is formed in a shape in which a part of the outer peripheral surface of the second portion 16 b of the rubber body 16 is notched straight toward the chord direction. That is, the notch 20 has a concave shape in which the bottom 20a that is recessed toward the inner cylinder 10 extends straight along the chord direction. As shown in FIG. 2, the notch 20 has a bottom 20 a, that is, the deepest notch is located inside the vehicle with respect to the axial center position P between the flange 12 and the plate member 13. It is provided with a shift. Therefore, the axial distance from the surface of the flange portion 12 to the bottom portion 20a is shorter than the axial distance from the surface of the plate member 13 to the bottom portion 20a. Further, the first inner surface 20b between the flange portion 12 and the bottom portion 20a of the notch 20 has a larger inclination angle with respect to the axial direction of the inner cylinder 10 than the second inner surface 20c between the plate member 13 and the bottom portion 20a. It has become.

ゴム体１６の第２部分１６ｂの切欠き部２０が設けられない部分の外周面は、フランジ部１２とプレート部材１３の間の軸方向中心位置Ｐを挟んで対称な湾曲面に形成されている。したがって、ゴム体１６の第２部分１６ｂの内筒１０に対して車両前方側を向く部分の外周面と、車両後方側を向く部分の外周面とは、軸対称でない非対称な形状となっている。   The outer peripheral surface of the portion where the notch 20 of the second portion 16b of the rubber body 16 is not provided is formed as a symmetrical curved surface with the axial center position P between the flange portion 12 and the plate member 13 interposed therebetween. . Therefore, the outer peripheral surface of the portion facing the vehicle front side with respect to the inner cylinder 10 of the second portion 16b of the rubber body 16 and the outer peripheral surface of the portion facing the vehicle rear side have an asymmetric shape that is not axially symmetric. .

このように、ゴム体１６の第２部分１６ｂの内筒１０に対して車両前方側となる外周面に底部２０ａが車両内側に偏った形状の切欠き部２０を設けたことにより、車両の旋回時に外筒１１にトーコレクト力を生じさせることができる。
例えば、車両が右に旋回する時には、後輪２，４には車両右側に向く横力が加わる。この横力がトレーリングアーム３，５を介して右側のトーコレクトブッシュ７の外筒１１に車両外側へ向く軸方向荷重として加えられると、ゴム体１６の弾性変形により内筒１０に固定されたプレート部材１３に対してフランジ部１２がプレート部材１３の側に向けて軸方向に移動し、フランジ部１２とプレート部材１３との間でゴム体１６の第２部分１６ｂが圧縮される。このとき、切欠き部２０の底部２０ａは、フランジ部１２とプレート部材１３の中央位置Ｐに対して車両内側にずらして設けられているので、外筒１１に車両外側へ向く横力が加えられてゴム体１６の第２部分１６ｂがフランジ部１２とプレート部材１３との間で軸方向に圧縮されると、ゴム体１６の第２部分１６ｂの第２内面２０ｃとプレート部材１３との間の部分が内筒１０の側へ向けて大きく弾性変形して、外筒１１に車両外側へ向くとともに内筒１０の軸方向に対して車両後方側へ傾斜した方向のトーコレクト力が加えられることになる。これにより、右側のトーコレクトブッシュ７の外筒１１は、内筒１０に対して車両後方側へ向けて変位量ｈだけずれを生じることになる。したがって、右側のトーコレクトブッシュ７の外筒１１は、トーコレクト力によりその軸方向を内筒１０の軸方向と平行に保ったまま、図１中に矢印で示す右下方向へ向けて変位することになる。 As described above, the notch 20 having a shape in which the bottom 20a is biased toward the inside of the vehicle is provided on the outer peripheral surface on the vehicle front side with respect to the inner cylinder 10 of the second portion 16b of the rubber body 16, thereby turning the vehicle. Sometimes a to collect force can be generated in the outer cylinder 11.
For example, when the vehicle turns to the right, a lateral force directed to the right side of the vehicle is applied to the rear wheels 2 and 4. When this lateral force is applied to the outer cylinder 11 of the right toe collect bush 7 via the trailing arms 3 and 5 as an axial load directed outward from the vehicle, the rubber body 16 is fixed to the inner cylinder 10 by elastic deformation. The flange portion 12 moves in the axial direction toward the plate member 13 with respect to the plate member 13, and the second portion 16 b of the rubber body 16 is compressed between the flange portion 12 and the plate member 13. At this time, since the bottom portion 20a of the notch portion 20 is provided to be shifted toward the vehicle inner side with respect to the center position P of the flange portion 12 and the plate member 13, a lateral force directed toward the vehicle outer side is applied to the outer cylinder 11. When the second portion 16b of the rubber body 16 is compressed in the axial direction between the flange portion 12 and the plate member 13, the space between the second inner surface 20c of the second portion 16b of the rubber body 16 and the plate member 13 is reduced. The portion is greatly elastically deformed toward the inner cylinder 10, and a to collect force is applied to the outer cylinder 11 in the direction inclined toward the vehicle rear side with respect to the axial direction of the inner cylinder 10. Become. As a result, the outer cylinder 11 of the right toe collect bush 7 is displaced by a displacement amount h toward the vehicle rear side with respect to the inner cylinder 10. Therefore, the outer cylinder 11 of the right toe collect bush 7 is displaced toward the lower right direction indicated by the arrow in FIG. 1 while keeping its axial direction parallel to the axial direction of the inner cylinder 10 by the to collect force. It will be.

一方、車両の左側のトーコレクトブッシュ８は、車両の右側のトーコレクトブッシュ７に対して左右対称に形成されているので、右側のトーコレクトブッシュ７とは反対に、その外筒１１には車両内側へ向くとともに内筒１０の軸方向に対して車両前方側へ傾斜したトーコレクト力が加えられることになる。これにより、左側のトーコレクトブッシュ８の外筒１１は、内筒１０に対して車両前方側へ向けて変位量ｈだけずれを生じることになる。したがって、左側のトーコレクトブッシュ８の外筒１１は、トーコレクト力によりその軸方向を内筒１０の軸方向と平行に保ったまま、図１中に矢印で示す右上方向へ向けて変位することになる。   On the other hand, the toe collect bush 8 on the left side of the vehicle is formed symmetrically with respect to the toe collect bush 7 on the right side of the vehicle. A to-collect force that is directed inward and inclined toward the vehicle front side with respect to the axial direction of the inner cylinder 10 is applied. As a result, the outer cylinder 11 of the left toe collect bush 8 is displaced by a displacement amount h toward the vehicle front side with respect to the inner cylinder 10. Accordingly, the outer cylinder 11 of the left toe collect bush 8 is displaced toward the upper right direction indicated by the arrow in FIG. 1 while keeping its axial direction parallel to the axial direction of the inner cylinder 10 by the to collect force. become.

したがって、車両の旋回時には、左右のトーコレクトブッシュ７，８がそれぞれ車両の前後方向で逆向きに内筒１０に対する外筒１１の変位ｈを生じることになるので、当該変位ｈにより左右のトレーリングアーム３，５つまりは左右の後輪２，４は操舵輪と同位相の方向へ向けてトー方向が補正されることになる。   Therefore, when the vehicle turns, the left and right toe collect bushes 7 and 8 cause the displacement h of the outer cylinder 11 with respect to the inner cylinder 10 in the opposite direction in the front-rear direction of the vehicle. The toe direction of the arms 3 and 5, that is, the left and right rear wheels 2 and 4 is corrected toward the same phase as the steered wheels.

このように、本発明では、ゴム体１６の第２部分１６ｂの車両前方側の部分の外周面に設けた切欠き部２０の底部２０ａをフランジ部１２とプレート部材１３の中央位置Ｐに対して車両内側にずらして設けたので、車両の旋回時に後輪２，４のトー方向を補正することができるトーコレクトブッシュ７，８を簡易な構成で構成することができる。   Thus, in the present invention, the bottom portion 20a of the notch portion 20 provided on the outer peripheral surface of the vehicle front side portion of the second portion 16b of the rubber body 16 is set to the flange portion 12 and the center position P of the plate member 13. Since they are provided inside the vehicle, the toe collect bushes 7 and 8 that can correct the toe direction of the rear wheels 2 and 4 when the vehicle is turning can be configured with a simple configuration.

図２、図３に示すように、このトーコレクトブッシュ７には、プレート部材１３の切欠き部２０に対して内筒１０の軸心を中心とした軸対称の位置に凸部２１を設けることができる。図示する場合では、凸部２１は、プレート部材１３をプレス加工等で加工することにより、内筒１０の軸心を中心として円弧状に延びるとともにフランジ部１２の側へ向けて軸方向に突出するリブ状に形成されているが、凸部２１はフランジ部１２に向けて突出する形状であれば他の形状とすることもできる。凸部２１を設けることにより、フランジ部１２とプレート部材１３との間に配置されたゴム体１６の第２部分１６ｂの軸方向寸法を低減させて、当該部分のばね定数を所望の値に高めることができる。   As shown in FIGS. 2 and 3, the toe collect bush 7 is provided with a convex portion 21 at an axially symmetric position about the axis of the inner cylinder 10 with respect to the notch portion 20 of the plate member 13. Can do. In the case shown in the drawing, the convex portion 21 extends in an arc shape around the axial center of the inner cylinder 10 and projects in the axial direction toward the flange portion 12 by processing the plate member 13 by press working or the like. Although it is formed in a rib shape, the convex portion 21 may have another shape as long as it protrudes toward the flange portion 12. By providing the convex portion 21, the axial dimension of the second portion 16b of the rubber body 16 disposed between the flange portion 12 and the plate member 13 is reduced, and the spring constant of the portion is increased to a desired value. be able to.

図３に示すように、プレート部材１３は、切欠き部２０が設けられた部分に対応した方向の外形形状が切欠き部２０の底部２０ａに平行な直線状とされている。一方、プレート部材１３の切欠き部２０が設けられた部分とは内筒１０を挟んで反対側となる部分の外形形状は円弧状とされている。また、これらの外形形状を連ねる側方の外形形状は、それぞれ切欠き部２０の底部２０ａに垂直な方向に延びる直線状とされている。さらに、ゴム体１６の第２部分１６ｂの外周面の切欠き部２０が設けられた部分の両側部分は、プレート部材１３の側方の外形形状に合わせて直線状に形成されている。
このように、プレート部材１３は、切欠き部２０が設けられる側と設けられない側とでその形状が相違する軸対称でない形状となっている。したがって、このトーコレクトブッシュ７，８をトレーリングアーム３，５や車体９に取り付ける際には、プレート部材１３の形状によりその取付け方向を確認することができる。 As shown in FIG. 3, the plate member 13 has a linear shape parallel to the bottom portion 20 a of the notch portion 20 in the direction corresponding to the portion where the notch portion 20 is provided. On the other hand, the outer shape of the portion on the opposite side of the inner cylinder 10 with respect to the portion where the notch portion 20 of the plate member 13 is provided is an arc shape. Further, the lateral external shape connecting these external shapes is a straight line extending in a direction perpendicular to the bottom 20a of the notch 20. Furthermore, both side portions of the portion of the outer peripheral surface of the second portion 16 b of the rubber body 16 where the cutout portion 20 is provided are formed in a straight line according to the outer shape of the side of the plate member 13.
Thus, the plate member 13 has a non-axisymmetric shape in which the shape is different between the side where the notch 20 is provided and the side where the notch 20 is not provided. Therefore, when the toe collect bushes 7 and 8 are attached to the trailing arms 3 and 5 and the vehicle body 9, the attachment direction can be confirmed by the shape of the plate member 13.

図４は、図２に示すトーコレクトブッシュ７の変形例を示す縦断面図である。
この変形例では、ゴム体１６の第２部分１６ｂの内筒１０の車両前方側の部分の外周面に加えて、ゴム体１６の第２部分１６ｂの内筒１０の車両後方側の部分の外周面にも切欠き部２０を設けるようにしている。内筒１０に対して車両後方側の部分とは、トレーリングアーム３，５がトーコレクトブッシュ７，８を支点として所定のストロークの範囲内で上下方向に揺動しても、常に切欠き部２０の半分以上の部分が内筒１０に対して車両後方側に位置する部分である。 FIG. 4 is a longitudinal sectional view showing a modification of the to-collect bush 7 shown in FIG.
In this modification, in addition to the outer peripheral surface of the vehicle front side portion of the inner cylinder 10 of the second portion 16b of the rubber body 16, the outer periphery of the vehicle rear side portion of the inner cylinder 10 of the second portion 16b of the rubber body 16 is used. Notches 20 are also provided on the surface. The portion on the vehicle rear side with respect to the inner cylinder 10 is always a notch portion even if the trailing arms 3 and 5 swing up and down within a predetermined stroke range with the torches bushes 7 and 8 as fulcrums. More than half of the 20 parts are located on the vehicle rear side with respect to the inner cylinder 10.

この変形例の場合、内筒１０に対して車両後方側に配置される切欠き部２０は、車両前方側に配置される切欠き部２０とは反対に、その底部２０ａの位置がフランジ部１２とプレート部材１３の間の軸方向の中心位置Ｐに対して車両の外側にずれて設けられている。つまり、車両前方側の切欠き部２０と車両後方側の切欠き部２０は、フランジ部１２とプレート部材１３の間の軸方向の中心位置Ｐと内筒１０の軸心との交点を中心として点対称な形状となっている。したがって、車両の旋回時に外筒１１に横力が加えられると、車両後方側の切欠き部２０も車両前方側の切欠き部２０と同一方向のトーコレクト力を発生することができる。これにより、ゴム体１６の内筒１０に対して車両前方側の部分と後方側の部分の両側において均等にトーコレクト力を発生させることができる。   In the case of this modification, the notch portion 20 disposed on the vehicle rear side with respect to the inner cylinder 10 is opposite to the notch portion 20 disposed on the vehicle front side, and the position of the bottom portion 20a is the flange portion 12. And the center position P in the axial direction between the plate member 13 and the outer side of the vehicle. That is, the notch portion 20 on the vehicle front side and the notch portion 20 on the vehicle rear side are centered on the intersection of the axial center position P between the flange portion 12 and the plate member 13 and the axis of the inner cylinder 10. It has a point-symmetric shape. Therefore, when a lateral force is applied to the outer cylinder 11 during turning of the vehicle, the notch portion 20 on the rear side of the vehicle can generate a to collect force in the same direction as the notch portion 20 on the front side of the vehicle. Thereby, it is possible to generate the to-collect force evenly on both sides of the vehicle front side portion and the rear side portion with respect to the inner cylinder 10 of the rubber body 16.

本発明は前記実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能であることはいうまでもない。   It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

例えば、図１に示す場合では、左右のトーコレクトブッシュ７，８をそれぞれ外筒１１に対してフランジ部１２とプレート部材１３が車体外側に位置する向きで車体９に取り付けるようにしているが、これらのトーコレクトブッシュ７，８をそれぞれ外筒１１に対してフランジ部１２とプレート部材１３が車両内側に位置する向きで車体９に取り付けることもできる。   For example, in the case shown in FIG. 1, the left and right toe collect bushes 7 and 8 are attached to the vehicle body 9 with the flange portion 12 and the plate member 13 being positioned on the outside of the vehicle body with respect to the outer cylinder 11, respectively. These toe collect bushes 7 and 8 can be attached to the vehicle body 9 in such a direction that the flange portion 12 and the plate member 13 are located on the inner side of the vehicle with respect to the outer cylinder 11.

また、切欠き部２０は、ゴム体１６の第２部分１６ｂの内筒１０に対して車両後方側の部分の外周面にのみ設けることもできる。この場合、切欠き部２０の底部２０ａは、図４に示す変形例における内筒１０に対して車両後方側に配置される切欠き部２０と同様に、フランジ部１２とプレート部材１３の間の軸方向の中心位置Ｐに対して車両の外側にずれて設けられる。   Moreover, the notch part 20 can also be provided only in the outer peripheral surface of the vehicle rear side part with respect to the inner cylinder 10 of the 2nd part 16b of the rubber body 16. FIG. In this case, the bottom portion 20a of the notch portion 20 is formed between the flange portion 12 and the plate member 13 in the same manner as the notch portion 20 disposed on the vehicle rear side with respect to the inner cylinder 10 in the modification shown in FIG. The center position P in the axial direction is provided outside the vehicle.

さらに、切欠き部２０は、ゴム体１６の外周面の一部をその弦方向へ向けて真っ直ぐに切り欠いた形状に限らず、内筒１０の側へ向けて凹んだ形状であれば、例えば窪んだ凹形状など他の形状とすることもできる。   Furthermore, the notch 20 is not limited to a shape in which a part of the outer peripheral surface of the rubber body 16 is notched straight toward the string direction, but may be any shape that is recessed toward the inner cylinder 10, for example. Other shapes such as a concave shape can be used.

さらに、切欠き部２０の底部２０ａは、内筒１０の軸方向に平行、且つ内筒１０の軸方向に沿った方向に幅を有する面として構成されてもよい。この場合、当該面の軸方向中心位置が、フランジ部１２とプレート部材１３の間の軸方向の中心位置Ｐに対して車両の内側または外側にずれていればよい。   Furthermore, the bottom portion 20 a of the notch 20 may be configured as a surface having a width in a direction parallel to the axial direction of the inner cylinder 10 and along the axial direction of the inner cylinder 10. In this case, it is only necessary that the axial center position of the surface be shifted inward or outward of the vehicle with respect to the axial center position P between the flange portion 12 and the plate member 13.

さらに、凸部２１は、切欠き部２０に対して内筒１０の軸心を中心とした軸対称の位置に限らず、任意の位置に設けることもできる。また、その形状も円弧形のリブ状に限らず、例えば円形の突起状など種々の形状とすることができる。   Furthermore, the convex portion 21 is not limited to an axially symmetric position around the axis of the inner cylinder 10 with respect to the notch portion 20, and can be provided at an arbitrary position. Further, the shape is not limited to the arc-shaped rib shape, and may be various shapes such as a circular protrusion.

１：トーションビーム式サスペンション ３：右側のトレーリングアーム ５：左側のトレーリングアーム ６：ビーム ７，８：トーコレクトブッシュ ９：車体 １０：内筒 １１：外筒 １２：フランジ部 １３：プレート部材 １６：ゴム体（弾性体） ２０：切欠き部 ２０ａ：底部 ２１：凸部 Ｐ：中心位置 1: Torsion beam suspension 3: Right trailing arm 5: Left trailing arm 6: Beam 7, 8: Toe collect bush 9: Car body 10: Inner cylinder 11: Outer cylinder 12: Flange part 13: Plate member 16: Rubber body (elastic body) 20: Notch 20a: Bottom 21: Convex P: Center position

Claims (4)

車両のトーションビーム式サスペンションを構成するトレーリングアームの、車体への連結部分に用いられる、トーコレクトブッシュであって、
内筒と、
前記内筒の径方向外側において前記内筒と同軸に配置される外筒と、
前記外筒の軸方向の一端から径方向外側に向けて延び、該外筒の軸方向に対する傾斜角度が全周に亘って一定のフランジ部と、
前記内筒から径方向外側に向けて延び、前記フランジ部に対して軸方向に間隔を空けて配置されるプレート部材と、
前記外筒を前記内筒に連結するとともに、前記フランジ部と前記プレート部とを連結する弾性体と、を有し、
前記弾性体は、前記フランジ部と前記プレート部材との間において、前記車体への取付け姿勢の下で前記内筒に対して車両前方側となる部分または車両後方側となる部分のうち少なくともいずれか一方の部分の外周面に前記内筒の側へ向けて凹む切欠き部を備え、
前記内筒に対して車両前方側に設けられた前記切欠き部の底部は、前記フランジ部と前記プレート部材との軸方向中心位置に対して、車両内側にずらして設けられ、前記内筒に対して車両後方側に設けられた前記切欠き部の底部は、前記フランジ部と前記プレート部材との軸方向中心位置に対して、車両外側にずらして設けられ、
前記弾性体は、前記フランジ部と前記プレート部材との間において、前記内筒に対する車両前方側の部分の外周面と車両後方側の部分の外周面とが、軸対称でない形状である、トーコレクトブッシュ。 A to-collect bush used for a connecting part of a trailing arm constituting a torsion beam type suspension of a vehicle to a vehicle body,
An inner cylinder,
An outer cylinder disposed coaxially with the inner cylinder on the radially outer side of the inner cylinder;
A flange portion extending radially outward from one axial end of the outer cylinder and having a constant inclination angle with respect to the axial direction of the outer cylinder over the entire circumference;
A plate member extending radially outward from the inner cylinder and disposed at an axial interval with respect to the flange portion;
An elastic body for connecting the outer cylinder to the inner cylinder and connecting the flange portion and the plate portion;
The elastic body is at least one of a portion on the vehicle front side or a vehicle rear side with respect to the inner cylinder between the flange portion and the plate member under the mounting posture to the vehicle body. Provided with a notch that is recessed toward the outer cylinder on the outer peripheral surface of one part,
The bottom portion of the notch provided on the vehicle front side with respect to the inner cylinder is provided to be shifted toward the inner side of the vehicle with respect to the axial center position of the flange portion and the plate member. On the other hand, the bottom of the notch provided on the vehicle rear side is provided to be shifted to the vehicle outer side with respect to the axial center position of the flange and the plate member,
The elastic body has a to-collect shape in which an outer peripheral surface of a vehicle front side portion and an outer peripheral surface of a vehicle rear side portion with respect to the inner cylinder are not axially symmetrical between the flange portion and the plate member. bush. 前記弾性体は、前記フランジ部と前記プレート部材との間において、前記内筒に対する車両前方側の部分と車両後方側の部分の両方の外周面に、それぞれ前記切欠き部を設けた、請求項１記載のトーコレクトブッシュ。   The said elastic body provided the said notch part in the outer peripheral surface of both the vehicle front side part with respect to the said inner cylinder, and the vehicle rear side part between the said flange part and the said plate member, respectively. The to-collect bush according to 1. 前記プレート部材に、前記フランジ部の側へ向けて突出する凸部を設けた、請求項１または２記載のトーコレクトブッシュ。   The toe collect bush of Claim 1 or 2 which provided the convex part which protrudes toward the said flange part side in the said plate member. 前記フランジ部と前記プレート部材との間の、前記内筒に対する車両前方側の部分または車両後方側の部分の、いずれか一方の外周面にのみ前記切欠き部を設け、前記プレート部材の、前記切欠き部に対して、前記内筒の軸心を中心とした軸対称の位置に、前記フランジ部の側へ向けて突出する凸部を設けた、請求項１記載のトーコレクトブッシュ。   The notch portion is provided only on one outer peripheral surface of the vehicle front side portion or the vehicle rear side portion with respect to the inner cylinder between the flange portion and the plate member, The toe collect bush of Claim 1 which provided the convex part which protrudes toward the said flange part side in the axially symmetrical position centering on the axial center of the said inner cylinder with respect to a notch part.
JP2012269506A 2012-12-10 2012-12-10 Toe collect bush Expired - Fee Related JP5973899B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07190132A (en) * 1993-12-27 1995-07-28 Toyota Motor Corp Suspension device
JPH10238574A (en) * 1997-02-28 1998-09-08 Toyo Tire & Rubber Co Ltd Elastic bush
JPH11182598A (en) * 1997-12-22 1999-07-06 Bridgestone Corp Vibration control device
JP2001225622A (en) * 2000-02-15 2001-08-21 Mitsubishi Motors Corp Suspension for vehicle
JP2002178735A (en) * 2000-12-12 2002-06-26 Tokai Rubber Ind Ltd Toe correction bushing and suspension mechanism using it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07190132A (en) * 1993-12-27 1995-07-28 Toyota Motor Corp Suspension device
JPH10238574A (en) * 1997-02-28 1998-09-08 Toyo Tire & Rubber Co Ltd Elastic bush
JPH11182598A (en) * 1997-12-22 1999-07-06 Bridgestone Corp Vibration control device
JP2001225622A (en) * 2000-02-15 2001-08-21 Mitsubishi Motors Corp Suspension for vehicle
JP2002178735A (en) * 2000-12-12 2002-06-26 Tokai Rubber Ind Ltd Toe correction bushing and suspension mechanism using it

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