JPH01266009A - Suspension device for vehicle - Google Patents

Suspension device for vehicle

Info

Publication number
JPH01266009A
JPH01266009A JP9352188A JP9352188A JPH01266009A JP H01266009 A JPH01266009 A JP H01266009A JP 9352188 A JP9352188 A JP 9352188A JP 9352188 A JP9352188 A JP 9352188A JP H01266009 A JPH01266009 A JP H01266009A
Authority
JP
Japan
Prior art keywords
cross beam
leaf spring
wheel
trailing arms
car body
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.)
Pending
Application number
JP9352188A
Other languages
Japanese (ja)
Inventor
Shigeru Kamiyama
上山 繁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP9352188A priority Critical patent/JPH01266009A/en
Publication of JPH01266009A publication Critical patent/JPH01266009A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/44Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also torsion-bar springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051Trailing arm twist beam axles

Abstract

PURPOSE:To make the degree of freedom of arrangement larger and to control the influence of geometry variation in a torsion beam type rear suspension by insertedly providing a leaf spring between a cross beam provided between right end left trailing arms end a car body. CONSTITUTION:Both ends of a pair of trailing arms 1 arranged on both sides are provided with a wheel attaching part 1A and a car body mounting part 1B, and the lower end of a damper strut 5 is fixed to an opening 1C of the wheel attaching part 1A with a bolt 6. A cross beam 3 is provided between the trailing arms 1. In addition, the one ends of two leaf springs 7 are fixed at positions symmetrical about the center of the cross beam 3 respectively. The other end of the leaf spring 7 is provided with a car body mounting part 7A, and a bolt 8A of a shackle 8 is passed through the part 7A and tightened with a nut 12. The leaf springs 7 attached to the cross beam 3 can therefore bring geometry variation caused by the bumping or rebounding of the wheel close to a roll center to reduce its influence.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、トーションビームとリーフスプリングを用い
たリヤサスペンションに関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rear suspension using a torsion beam and a leaf spring.

〔従来技術〕[Prior art]

従来、リーフスプリングを用いたリヤサスペンションは
実開昭57−85309号公報に示されるように、リー
フスプリングの前後端を車体に連結し、その略中夫に車
輪を支持するとともに、車輪支持位置より前半部は剛体
構造に、後半部はリーフ状のスプリング構造としていた
Conventionally, as shown in Japanese Utility Model Application No. 57-85309, a rear suspension using a leaf spring connects the front and rear ends of the leaf spring to the vehicle body, supports the wheel approximately in the middle of the leaf spring, and supports the wheel from the wheel support position. The first half had a rigid structure, and the second half had a leaf-like spring structure.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来のリーフスプリングを用いたリヤサスペンションに
おいては、リーフスプリングの全長が長く、リーフスプ
リングを設置するために大きなスペースが必要となり、
車体に対する設置場所が限られる即ち車体後端から車軸
までの距離を充分に確保しなくてはならないという問題
があった。
In conventional rear suspensions using leaf springs, the overall length of the leaf springs is long, and a large space is required to install the leaf springs.
There is a problem in that the installation location on the vehicle body is limited, that is, a sufficient distance from the rear end of the vehicle body to the axle must be secured.

また、前記した従来のトーションビームを用いたリヤサ
スペンションにおいては、車輪のバンプ或いはリバウン
ド時に生じるキャンバ変化等のジオメトリ−変化に対し
リーフスプリングがその動きを阻害してしまうという問
題があった。
Further, in the above-mentioned conventional rear suspension using a torsion beam, there is a problem in that the leaf spring obstructs the movement of a geometry change such as a camber change that occurs when a wheel bumps or rebounds.

本発明の車両のサスペンション装置は、上記問題点を解
決し、設置場所の選択条件を緩和して配置の自由度を大
きくするとともに、ジオメトリ−変化の影響度を小さく
することを目的とする。
The purpose of the vehicle suspension device of the present invention is to solve the above-mentioned problems, relax the conditions for selecting an installation location, increase the degree of freedom in placement, and reduce the influence of changes in geometry.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の車両のサスペンション装置は、トーションビー
ム式すャサスペンシッンにおいて、左右のトレーリング
アーム間に設けられたクロスビームと車体とにリーフス
プリングの両端をそれぞれ連結し、車輪のバンプ或いは
リバウンド時にバネ力を発生させるものである。
The vehicle suspension device of the present invention is a torsion beam type suspension system in which both ends of a leaf spring are connected to the cross beam provided between the left and right trailing arms and the vehicle body to generate spring force when a wheel bumps or rebounds. It is something that makes you

〔作用〕[Effect]

上記のように構成された車両のサスベンジジン装置にお
いては、左右のトレーリングアーム間に設けられたクロ
スビームと車体の間にリーフスプリングを設けたために
、サスペンション装置の前後方向の長さが短くなり、車
体後端から車軸までの距離が短くて済むものであり、ま
た車輪のバンプ或いはリバウンド時に生じるジオメトリ
−変化に対しても、リーフスプリングをクロスビームに
取り付けることでロールセンターに近づけることができ
る為影響度を小さくできるものである。
In the vehicle suspension system configured as described above, a leaf spring is provided between the cross beam provided between the left and right trailing arms and the vehicle body, so the length of the suspension system in the longitudinal direction is shortened. , the distance from the rear end of the vehicle body to the axle can be shortened, and the leaf spring can be moved closer to the roll center by attaching it to the cross beam, even when the geometry changes due to wheel bumps or rebound. This allows the degree of influence to be reduced.

〔実施例〕 本発明の一実施例として、カップルドリンク型のトーシ
ョンビーム式リヤサスペンションに本発明の車両のサス
ペンション装置を適用したものを図面について説明する
[Embodiment] As an embodiment of the present invention, a vehicle suspension device of the present invention applied to a couple link type torsion beam rear suspension will be described with reference to the drawings.

トレーリングアーム1.1を左右に配置し、その一端を
車体取付部IAとして車体フレーム(図示せず)にピン
2を介して回動可能に取り付け、他端を車輪取付部IB
としてホイールサポート2をボルト2Aとナツト4によ
り固定し、車輪取付部IBの開口ICにダンバーストラ
ッド5の下端をボルト6により取り付ける。トレーリン
グアーム1.1の車体取付部IAと車輪取付部IBとの
間の適切な位置に、トーションビームであるクロスビー
ム3の両端をそれぞれ固定して両トレーリングアーム1
.1間にクロスビーム3を設ける。
Trailing arms 1.1 are arranged on the left and right, one end of which is rotatably attached to the vehicle body frame (not shown) via a pin 2 as a vehicle body attachment portion IA, and the other end is a wheel attachment portion IB.
The wheel support 2 is fixed with bolts 2A and nuts 4, and the lower end of the damper strut 5 is attached with bolts 6 to the opening IC of the wheel mounting portion IB. Both ends of the cross beam 3, which is a torsion beam, are fixed at appropriate positions between the vehicle body attachment part IA and the wheel attachment part IB of the trailing arm 1.1.
.. A cross beam 3 is provided between the two.

クロスビーム3の中央から両側に等距離の位置即ち中央
について対称な位置に、2枚のリーフスプリング7.7
の一端を固定して、車輪取付位置についてトレーリング
アーム1.1の車体取付部IAと反対側に延在させ、各
リーフスプリング7の他端に筒状の車体取付部7Aを形
成し、該車体取付部7Aにシャックル8のポル)8Aが
貫通され、車体フレー°ムのブラケット13にシャック
ル8のポル)8Bが貫通されてゴムブツシュ9、ブツシ
ュ10を介してボルト8A、8Bにプレート11が嵌装
され、ワッシャを介してナツト12により回動自在に固
定される。
Two leaf springs 7.7 are placed at positions equidistant from the center of the cross beam 3 on both sides, that is, at positions symmetrical about the center.
One end of each leaf spring 7 is fixed and extends to the side opposite to the vehicle body attachment portion IA of the trailing arm 1.1 with respect to the wheel attachment position, and a cylindrical vehicle body attachment portion 7A is formed at the other end of each leaf spring 7. The bolt 8A of the shackle 8 is passed through the vehicle body mounting portion 7A, the pole 8B of the shackle 8 is penetrated through the bracket 13 of the vehicle body frame, and the plate 11 is fitted to the bolts 8A and 8B via the rubber bushes 9 and 10. It is rotatably fixed with a nut 12 via a washer.

上記の構成によると、車体の前後方向の長さを短くする
ことができるとともに、車輪のバンプ或いはリバウンド
時に車輪が上下動する時は、両車軸が常に同じ高さに在
るものではなく、両車軸の高さの差異がクロスビーム3
に涙じれを生じつつ車輪のロール状態を生じることにな
り、クロスビーム3の涙じれはリーフスプリング7を上
または下に曲げようとするから、この時にリーフスプリ
ング7のバネ力が作用して上下方向の緩衝作用を果たす
ものである。ところが、車輪のロール状態においては車
輪位置が車幅方向内側へ移動するものであり、その車軸
上の各点の移動量が車軸両端(即ち車輪位置)で最大で
、ロール中心に近づ(につれて小さ(なるから、リーフ
スプリング7の取付位置を車軸両端から離隔しているた
めに、横方向の変位を吸収できないリーフスプリング7
が車輪のロール状態を抑制することがなく、トレーリン
グアーム1の車輪取付側端にリーフスプリング7端を固
定したものに較べて、トレーリングアームlの車輪取付
側端の捩じれながらの上下動に対応する車輪のロール状
態でのリーフスプリング7の車幅方向の動きが小さくて
済むから、車輪のキャンバ−変化等のジオメトリ−変化
の影響度を小さくすることができる。
According to the above configuration, the length of the vehicle body in the longitudinal direction can be shortened, and when the wheels move up and down during wheel bumps or rebound, both axles are not always at the same height, and both axles are not always at the same height. The difference in axle height is cross beam 3
This causes the wheels to roll, causing tear blisters in the cross beam 3, and the tear blisters in the cross beam 3 tend to bend the leaf springs 7 upward or downward. This serves as a directional buffer. However, when the wheel is in a roll state, the wheel position moves inward in the vehicle width direction, and the amount of movement of each point on the axle is greatest at both ends of the axle (i.e., the wheel position), and as it approaches the center of roll (as Because the leaf spring 7 is installed far away from both ends of the axle, the leaf spring 7 cannot absorb lateral displacement.
does not suppress the roll state of the wheels, and compared to a case where the end of the leaf spring 7 is fixed to the end of the trailing arm 1 on the wheel mounting side, the twisting vertical movement of the end of the trailing arm l on the wheel mounting side is prevented. Since the movement of the leaf spring 7 in the vehicle width direction when the corresponding wheel is rolled is small, the influence of changes in geometry such as changes in camber of the wheel can be reduced.

トーションビームとしての機能を有するクロスビーム3
は、通常のバネ鋼製の場合は第3図に示されるように、
断面が横倒しのU字状に形成されており、ボルト14′
でリーフスプリング7が固定される。また、FRP樹脂
をクロスビーム3の材質として採用しても良く、FRP
樹脂製のクロスビーム3は第4図に示されるように、断
面が方形であり、ボルト14′でリーフスプリング7が
固定される。
Cross beam 3 that functions as a torsion beam
In the case of normal spring steel, as shown in Figure 3,
The cross section is formed in a sideways U-shape, and the bolt 14'
The leaf spring 7 is fixed. Furthermore, FRP resin may be used as the material of the cross beam 3, and FRP
As shown in FIG. 4, the cross beam 3 made of resin has a square cross section, and the leaf springs 7 are fixed with bolts 14'.

なお、リーフスプリングが2枚使用されるものについて
説明したが、リーフスプリングは1枚でも良く、その場
合には、左右のロール状態に対する特性を同等にするた
め、リーフスプリングの取付(1をクロスビーム3の中
央にすることが望ましい。
Although we have explained the case where two leaf springs are used, it is also possible to use only one leaf spring. It is desirable to set it in the middle of 3.

また、カップルドリンク型のトーションビーム式リヤサ
スペンションについて述べてきたが、他の型のトーショ
ンビーム式リヤサスペンションについても同様である。
Further, although the couple link type torsion beam rear suspension has been described, the same applies to other types of torsion beam rear suspensions.

〔発明の効果〕〔Effect of the invention〕

本発明の車両のサスペンション装置は、上述のとおり構
成されているから、サスペンション装置の全長が短くす
ることができ、車体後端から車軸までの距離が短くて済
むものであるから、設置場所の選択条件が緩和され、配
置の自由度を大きくすることができるから、レイアウト
性が高くなるものであり、また車輪のバンプ或いはリバ
ウンド時には、クロスビームの捩じれによる力を受けた
リーフスプリングのバネ力がクロスビームに作用して車
輪の動きを抑制し、トレーリングアームの車輪取付側端
にリーフスプリング端を固定したものに較べて、トレー
リングアームの車輪取付側端の捩じれながらの上下動に
よるリーフスプリングの動きが小さくて済むから、対地
キャンバ−角変化やトウ変化等のジオメトリ−変化の影
響度を小さ(することができる。
Since the vehicle suspension device of the present invention is configured as described above, the overall length of the suspension device can be shortened, and the distance from the rear end of the vehicle body to the axle can be shortened, so that the conditions for selecting the installation location are It is possible to increase the degree of freedom in arrangement, which improves layout efficiency.In addition, when a wheel bumps or rebounds, the spring force of the leaf spring that receives the force due to the torsion of the cross beam is applied to the cross beam. Compared to a case where the leaf spring end is fixed to the wheel mounting side end of the trailing arm, the movement of the leaf spring due to the twisting up and down movement of the wheel mounting side end of the trailing arm is suppressed. Since it is small, the influence of geometry changes such as ground camber angle changes and toe changes can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示し、第1図は組立斜視図、第
2図は要部平面図、第3図は要部断面図、第4図は異な
る実施例の要部断面図である。 l・・・トレーリングアーム、 2・・・ホイールサポート、 3・・・クロスビーム、 5・・・ダンバーストラット、 7・・・リーフスプリング、 8・・・シャックル。
The drawings show an embodiment of the present invention; FIG. 1 is an assembled perspective view, FIG. 2 is a plan view of the main part, FIG. 3 is a sectional view of the main part, and FIG. 4 is a sectional view of the main part of a different embodiment. . l... Trailing arm, 2... Wheel support, 3... Cross beam, 5... Dunbar strut, 7... Leaf spring, 8... Shackle.

Claims (1)

【特許請求の範囲】[Claims] (1)トーションビーム式リヤサスペンションにおいて
、左右のトレーリングアーム間に設けられたクロスビー
ムと車体との間にバンプ或いはリバウンド時にバネ力を
発生するリーフスプリングを配設したことを特徴とする
車両のサスペンション装置。
(1) A torsion beam rear suspension for a vehicle characterized by a leaf spring that generates spring force during bumps or rebounds between the cross beam provided between the left and right trailing arms and the vehicle body. Device.
JP9352188A 1988-04-18 1988-04-18 Suspension device for vehicle Pending JPH01266009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9352188A JPH01266009A (en) 1988-04-18 1988-04-18 Suspension device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9352188A JPH01266009A (en) 1988-04-18 1988-04-18 Suspension device for vehicle

Publications (1)

Publication Number Publication Date
JPH01266009A true JPH01266009A (en) 1989-10-24

Family

ID=14084629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9352188A Pending JPH01266009A (en) 1988-04-18 1988-04-18 Suspension device for vehicle

Country Status (1)

Country Link
JP (1) JPH01266009A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1024037A1 (en) * 1999-01-27 2000-08-02 Peugeot Citroen Automobiles SA Rear axle suspension for a motor vehicle
FR2793735A1 (en) * 1999-05-18 2000-11-24 Peugeot Citroen Automobiles Sa Rear axle for car comprises deformable crosspiece, tubular arm, and suspension rod, with arm attached to structure of car via suspension rod
KR100423839B1 (en) * 2001-09-21 2004-03-22 현대모비스 주식회사 connecting device of spindle for torsion beam axle
WO2004108445A1 (en) * 2003-06-10 2004-12-16 Kongsberg Automotive As Device for connecting a wheel axle housing with the chassis of a vehicle
EP1882600A1 (en) * 2006-07-29 2008-01-30 Bayerische Motoren Werke Aktiengesellschaft Interconnection guide shaft
US20190143774A1 (en) * 2017-11-14 2019-05-16 Ford Global Technologies, Llc Trailing-arm suspension with leaf springs

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1024037A1 (en) * 1999-01-27 2000-08-02 Peugeot Citroen Automobiles SA Rear axle suspension for a motor vehicle
FR2793735A1 (en) * 1999-05-18 2000-11-24 Peugeot Citroen Automobiles Sa Rear axle for car comprises deformable crosspiece, tubular arm, and suspension rod, with arm attached to structure of car via suspension rod
KR100423839B1 (en) * 2001-09-21 2004-03-22 현대모비스 주식회사 connecting device of spindle for torsion beam axle
WO2004108445A1 (en) * 2003-06-10 2004-12-16 Kongsberg Automotive As Device for connecting a wheel axle housing with the chassis of a vehicle
US7665745B2 (en) 2003-06-10 2010-02-23 Kongsberg Automotive As Device for connecting a wheel axle housing with the chassis of a vehicle
EP1882600A1 (en) * 2006-07-29 2008-01-30 Bayerische Motoren Werke Aktiengesellschaft Interconnection guide shaft
US20190143774A1 (en) * 2017-11-14 2019-05-16 Ford Global Technologies, Llc Trailing-arm suspension with leaf springs
US10894455B2 (en) * 2017-11-14 2021-01-19 Ford Global Technologies, Llc Trailing-arm suspension with leaf springs

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