JPS628803A - Rear suspension for vehicle - Google Patents

Rear suspension for vehicle

Info

Publication number
JPS628803A
JPS628803A JP14696985A JP14696985A JPS628803A JP S628803 A JPS628803 A JP S628803A JP 14696985 A JP14696985 A JP 14696985A JP 14696985 A JP14696985 A JP 14696985A JP S628803 A JPS628803 A JP S628803A
Authority
JP
Japan
Prior art keywords
trailing arm
vehicle body
wheel
lateral
lateral link
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
JP14696985A
Other languages
Japanese (ja)
Inventor
Yozo Kami
加美　陽三
Keinosuke Taki
瀧　敬之介
Toshifumi Yamamoto
敏文 山本
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP14696985A priority Critical patent/JPS628803A/en
Priority to US06/881,775 priority patent/US4717171A/en
Priority to EP86305156A priority patent/EP0207795B1/en
Priority to DE8686305156T priority patent/DE3681085D1/en
Publication of JPS628803A publication Critical patent/JPS628803A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/22—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid a rigid arm forming the axle housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/18—Multilink suspensions, e.g. elastokinematic arrangements
    • B60G2200/182—Multilink suspensions, e.g. elastokinematic arrangements with one longitudinal arm or rod and lateral rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/422—Links for mounting suspension elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/16—Constructional features of arms the arm having a U profile and/or made of a plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/16—Constructional features of arms the arm having a U profile and/or made of a plate
    • B60G2206/162—Constructional features of arms the arm having a U profile and/or made of a plate with a plate closing the profile in the total or partial length of the arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE:To make a trailing arm movement smooth in a trailing arm type suspension system having multiple lateral links by arranging a trailing arm pivoting shaft line in a direction of a tangent of an arc of a circle with its center at the center of a wheel rotation. CONSTITUTION:A shaft line L of a supporting shaft 19 of a rubber bushing 18 interposed at a body-side pivot point E of a trailing arm 1 is arranged when seen in a plan view in the direction of a tangent on an arc P of a circle with its center at a rotation center O of a wheel 16. With this constitution, only shearing forces in the direction of the shaft line L are exerted on the rubber bushing 18 when the wheel bounds or rebounds, which makes the trailing arm 1 move smoothly along the shaft line L toward inside chassis and backward. Thus, movement of the trailing arm can be facilitated.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は車両におけるトレーリングアーム式のりャサス
ペンシ璽ンに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a trailing arm type suspension suspension for a vehicle.

（従来の技術） 前端側か車体に枢着され、後端側で車輪を回転自在に支
持し、車体前後方向に配置されるトレーリングアームと
、一端を車体に他端をトレーリングアームに連結され、
車体横方向に配置される３本のラテラルリンクより成る
車両のリヤサスペンションは知られる。(Prior technology) A trailing arm is pivotally attached to the vehicle body at the front end, rotatably supports the wheels at the rear end, and is arranged in the longitudinal direction of the vehicle, and one end is connected to the vehicle body and the other end is connected to the trailing arm. is,
A rear suspension for a vehicle is known that includes three lateral links arranged in the lateral direction of the vehicle body.

そして３本のラテラルリンクを前方のものから第１乃至
第３う、チラルリンクと呼んだ場合、第２及び第３ラテ
ラ、ルリンクをトレーリングアーム後部に連結する一方
、第１ラテラルリンクをトレーリングアームの前後中間
部に連結したことが特開昭Ｑ、−！ｉ３４．，９１１号
と米国特許第３３２７８０３号に開示され、また特開昭
５７−１１０５１３号にはトレーリングアームの車体、
側枢着部の下方に第１ラテラルリンクを連結したことが
開示される。When the three lateral links are called the first to third lateral links from the front, the second and third lateral links are connected to the rear of the trailing arm, while the first lateral link is connected to the trailing arm. It is said that it was connected to the front and rear intermediate parts of JP-A-Sho Q, -! i34. , 911 and U.S. Patent No. 3,327,803, and Japanese Patent Application Laid-open No. 110513/1983 discloses a vehicle body with a trailing arm,
It is disclosed that a first lateral link is connected below the side pivot portion.

（発明が解決しようとする問題点） 斯かるサスペンションにおいて、一般にトレーリングア
ームの車体枢着部にはゴムブツシュが介装される。　。(Problems to be Solved by the Invention) In such suspensions, a rubber bush is generally interposed at the pivot point of the trailing arm to the vehicle body. .

ところで、車輪がバウンド、リバウンドした場合におい
て、第８図（ｂ）のようにトレーリングアーム（１０１
）前部の車体枢着点（Ｅｏ）が動かないと仮定すると、
トレーリングアーム（１０１）はその後端部に連結した
第３ラテラルリンク（１０３）により後部が車体内側に
引込まれるので、車輪（１０２）はトーアウト方向に向
いてしまう。By the way, when the wheels bounce or rebound, the trailing arm (101
) Assuming that the front body pivot point (Eo) does not move,
Since the rear part of the trailing arm (101) is pulled into the inside of the vehicle body by the third lateral link (103) connected to the rear end, the wheels (102) are oriented in the toe-out direction.

これを避けるべく３本の各リンクの配置に工夫を施して
トー変化をさせないようにし、トレーリングアームがバ
ウンド、リバウンド時に車体側枢着部に介装したゴムブ
ツシュのコンプライアンスにより車体内側で、且つ後方
へ平行移動し得るように構成する。そしてこの時の車体
枢着点（Ｅｏ）の移動は、車輪の回転中心（０）を中心
として移動するのが最も移動抵抗が少ない。In order to avoid this, we have devised the arrangement of each of the three links to prevent toe changes, and when the trailing arm bounces or rebounds, the compliance of the rubber bushing inserted in the pivot joint on the side of the car allows it to move inside the car and at the rear. It is configured so that it can be translated in parallel to. At this time, the vehicle body pivot point (Eo) moves around the rotation center (0) of the wheel with the least movement resistance.

ところが、このゴムブツシュの軸線を車体横方向と平行
に配置した場合、ゴムブツシュには軸線方向の剪断力と
これと直角方向への圧縮力が作用するので、バウンド、
リバウンド時において、トレーリングアームが車体内側
で、且つ後方へ必ずしもスムーズに移動するとは言い難
い。However, when the axis of the rubber bushing is placed parallel to the lateral direction of the vehicle body, shearing force in the axial direction and compressive force in the direction perpendicular to this act on the rubber bushing, causing bounce,
During rebound, the trailing arm does not always move smoothly inside the vehicle body and toward the rear.

従って本発明の目的は、前記型式のリヤサスペンション
において、トレーリングアームの枢着軸の配置に工夫を
施すことによりバウンド、リバウンド時におけるトレー
リングアームの移動を容易に行わしめることができるよ
うにした車両のリヤサスペンションを提供するにある。Therefore, an object of the present invention is to provide a rear suspension of the above type in which the trailing arm can be easily moved during bounce and rebound by devising the arrangement of the pivot shaft of the trailing arm. To provide rear suspension for vehicles.

（問題点を解決するための手段） 前記目的を達成すべく本発明は、前端側が車体にゴムブ
ツシュ（１８）を介して枢着され、後端側で車輪（１６
）を回転自在に支持し、車体前後方向に配置されるトレ
ーリングアーム（１）と、一端を車体に他端をトレーリ
ングアーム（１）に連結され、車体横方向に配置される
複数のラテラルリンク（２１）。(Means for Solving the Problems) In order to achieve the above object, the present invention has a front end side that is pivotally attached to the vehicle body via a rubber bush (18), and a rear end side that is pivoted to the vehicle body (16).
) is rotatably supported and is arranged in the longitudinal direction of the vehicle body, and a plurality of laterals are connected to the vehicle body at one end and the trailing arm (1) at the other end and are arranged in the lateral direction of the vehicle body. Link (21).

（３１）、（４１）より成る車両のリヤサスペンション
において、トレーリングアーム（１）の枢着軸線（Ｌ）
を平面視で車輪（１Ｂ）の回転中心（０）を中心とする
円弧（Ｐ）の接線方向に配置する。In the vehicle rear suspension consisting of (31) and (41), the pivot axis (L) of the trailing arm (1)
is arranged in the tangential direction of a circular arc (P) centered on the rotation center (0) of the wheel (1B) in plan view.

（作用） 第８図（ａ）のようにトレーリングアーム（１９）の枢
着軸（１９）の軸線（Ｌ）を平面視において、車輪（１
Ｂ）の回転中心（０）を中心とする円弧（Ｐ）の接線方
向に配置したので、車輪（１Ｂ）のバウンド、リバウン
ド時にトー変化をさせないように配置された第１及び第
３ラテラルリンク（２１）、（４１）によるトレーリン
グアーム（りの車体内側への引込み時、ゴムブツシュ（
１８）には軸線（Ｌ）方向の剪断力が作用するのみとな
る。従ってトレーリングアーム（１）は車体内側で、且
つ後方へ前記円弧（Ｐ）の接線方向へ容易に移動するこ
ととなる。(Function) As shown in FIG. 8(a), when the axis (L) of the pivot shaft (19) of the trailing arm (19) is viewed from above, the wheel (1
The first and third lateral links (B) are arranged in the tangential direction of the arc (P) centered on the rotation center (0) of the wheel (1B), so that the toe does not change when the wheel (1B) bounces or rebounds. 21), when the trailing arm (41) is retracted to the inside of the vehicle body, the rubber bush (
18), only the shearing force in the axial (L) direction acts on it. Therefore, the trailing arm (1) can easily move inside the vehicle body and rearward in the tangential direction of the arc (P).

（実施例） 以下に添付図面を基に実施例を説明する。(Example) Examples will be described below based on the accompanying drawings.

第１図は本リヤサスペンションの斜視図、第２図乃至第
４図は同平面、側面及び背面図で、トレーリングアーム
（１）は板面（２）を垂直方向とし、車体内側へ向けて
屈曲形成した周縁片（８）を備える鋼板プレス成形品で
、特に車体前後方向に対し剛体として形成する。このト
レーリングアーム（１）の垂直板面（２）の後部には外
側方に突出するアクスル（１５）を固設し、また垂直板
面（２）の前寄り部には軸線をほぼ車体横方向とした管
材ゴムブツシュ（１８）を固設する。更に垂直板面（２
）にアクスル（１５）の斜め前上方に延出する突出部（
３）を形成するとともに、垂直板面（２）にアクスル（
１５）の斜め後下方に延出する突出部（０を形成し、こ
の上下の突出部（３）、（４）端で周縁片（８）をそれ
ぞれ前後に離間し、上下の突出部（３）、（４）に前部
周縁片（７）と後部周縁片（８）が対向して成る車体内
側へ開放されたコ字形部（９）、（１０）をそれぞれ形
成する。Figure 1 is a perspective view of this rear suspension, and Figures 2 to 4 are the same plane, side, and rear views.The trailing arm (1) has its plate surface (2) in the vertical direction, and faces toward the inside of the vehicle body. It is a steel plate press-formed product having a bent peripheral edge piece (8), and is formed as a rigid body particularly in the longitudinal direction of the vehicle body. An axle (15) is fixed to the rear of the vertical plate surface (2) of this trailing arm (1), and the axle (15) protrudes outward. A rubber bushing (18) of the tubular material with the same direction is fixed. Furthermore, the vertical plate surface (2
) extends diagonally forward and upward of the axle (15).
3), and an axle (
A protrusion (0) extending obliquely rearward and downward of the upper and lower protrusions (3) and (4) is formed, and the peripheral pieces (8) are spaced back and forth at the ends of the upper and lower protrusions (3) and (4). ) and (4) are respectively formed with U-shaped parts (9) and (10) that are open to the inside of the vehicle body and are formed by opposing front peripheral edge pieces (7) and rear peripheral edge pieces (8).

そして斯かるトレーリングアーム（１）の後部内側に補
強板（１１）を前後の周縁部（７）、（８）にわたって
固設するとともに、前寄り部内側にも補強板（１２）を
前部周縁片（７）の上下間に固設し、後部補強板（１１
）にアクスル（１５）の基端部を、また前部補強板（１
２）に前記管材ゴムブツシュ（１８）をそれぞれ固設す
る。A reinforcing plate (11) is fixed on the inside of the rear part of the trailing arm (1) across the front and rear peripheral parts (7) and (8), and a reinforcing plate (12) is also installed on the inside of the front part of the front part. A rear reinforcing plate (11) is fixedly installed between the upper and lower sides of the peripheral edge piece (7).
) to the base end of the axle (15), and the front reinforcing plate (1
2) The tube rubber bushings (18) are fixedly attached to each of the tubes.

以上のトレーリングアーム（１）のアクスル（１５）に
車輪（１Ｂ）を回転自在に組付け、トレーリングアーム
（１）の管材ゴムブツシュ（１８）より前方の延長部（
５）に第１ラテラルリンク（２１）を連結し、トレーリ
ングアーム（１）後部の上部コ字形部（９）に第２ラテ
ラルリンク（３１）を、また下部コ字形部（！０）に第
３ラテラルリンク（４１）をそれぞれ連結する。The wheel (1B) is rotatably assembled to the axle (15) of the trailing arm (1), and the extension part (
5) to the first lateral link (21), the second lateral link (31) to the upper U-shaped part (9) at the rear of the trailing arm (1), and the second lateral link (31) to the lower U-shaped part (!0). Three lateral links (41) are connected respectively.

第１ラテラルリンク（２１）は下方に開放する鋼板チャ
ンネル材から成り、その両端には軸線を前後方向とした
管材ゴムブツシュ（２２）、（２４）を固設し、この第
１ラテラルリンク（２１）の外側端の管材ゴムブツシュ
（２２）を延長部（５）内に臨ませ、ゴムブツシュ（２
２）内を挿通する軸線をほぼ車体前後方向とした支軸（
２３）を延長部（５）前方の周縁片（７）前端とその後
方に固設したステイ（１３）間に架設する。The first lateral link (21) is made of a steel plate channel member that opens downward, and tubular rubber bushings (22) and (24) whose axes are in the front and back direction are fixedly installed at both ends of the first lateral link (21). The tube rubber bushing (22) at the outer end of the tube faces into the extension (5), and the rubber bushing (22)
2) A support shaft whose axis passing through the interior is approximately in the longitudinal direction of the vehicle body (
23) is installed between the front end of the peripheral edge piece (7) in front of the extension part (5) and the stay (13) fixed to the rear thereof.

第２ラテラルリンク（３１）は鋼板プレート材から成り
、その両端には軸線を板面と直角方向とした管材ゴムブ
ー２シュ（３２）　、　（３４）を固設し、この第２ラ
テラルリンク（３１）の外側端の管材ゴムブツシュ（３
２）を上部コ字形部（９）内に臨ませ、ゴムブツシュ（
３２）内を挿通する軸線をほぼ車体前後方向とした支軸
（３３）をコ字形部（９）の前後間に架設する。The second lateral link (31) is made of a steel plate, and on both ends of the second lateral link (31) are fixed tube rubber bushes (32) and (34) whose axes are perpendicular to the plate surface. ) at the outer end of the tubing rubber bushing (3
2) into the upper U-shaped part (9), and insert the rubber bushing (
32) A support shaft (33) is installed between the front and rear of the U-shaped portion (9), with the axis passing through the shaft extending approximately in the longitudinal direction of the vehicle body.

第３ラテラルリンク（４１）は下方に開放する鋼板チャ
ンネル材から成り、その両端には軸線を前後方向とした
管材ゴムブツシュ（４２）、（４４）を固設し、この第
３ラテラルリンク（４１）の外側端の管材ゴムブツシュ
（４２）を下部コ字形部（ｌＯ）内に臨ませ、ゴムブツ
シュ（４２）内を挿通する軸線をほぼ車体前後方向とし
た支軸（４３）をコ字形部（ｌＯ）の前後間に架設する
。The third lateral link (41) is made of a steel plate channel member that opens downward, and tubular rubber bushings (42) and (44) whose axes are in the front and back direction are fixed to both ends of the third lateral link (41). The tube rubber bushing (42) at the outer end of the tube faces into the lower U-shaped part (lO), and the support shaft (43) whose axis passing through the rubber bushing (42) is approximately in the longitudinal direction of the vehicle body is attached to the U-shaped part (lO). It will be constructed between the front and back of the

これら３本のリンクの長さは、第１ラテラルリンク（２
１）を最短に１次に第２ラテラルリンク（３１）を長く
、：ｊ４３ラテラルリンク（４１）を最長に設定する。The length of these three links is the first lateral link (2
1) is set to the shortest first, the second lateral link (31) is set to the longest, and the :j43 lateral link (41) is set to the longest.

そして第３ラテラルリンク（４りの外端寄り部に軸線を
車体前後方向とした支軸（５２）にてダンパ（５１）の
下端を゛連結し、このダンパ（５１）を第２ラテラルリ
ンク（３１）より後方に配器する。Then, the lower end of the damper (51) is connected by a support shaft (52) whose axis is in the longitudinal direction of the vehicle body near the outer end of the third lateral link (4), and this damper (51) is connected to the second lateral link (4). 31) Place it further back.

斯くしてトレーリングアーム（１）に対し第１乃至第３
ラテラルリンク（２１）、（３１）、（４１）を各枢着
点（Ａ）　、（Ｂ）　、（Ｃ）で、また第３ラテラルリ
ンク（４１）に対しダンパ（５２）を枢着点（Ｄ）でそ
れぞれ連結する。In this way, the first to third
The lateral links (21), (31), and (41) are connected to the pivot points (A), (B), and (C), and the damper (52) is connected to the third lateral link (41) at the pivot point (A), (B), and (C). D) to connect each.

次に後部車体構成部材を示す第５図乃至第７図と併せト
レーリングアーム（１）、ラテラルリンク（２１）　、
（３１）　、（４１）及びダンパ（５１）の車体への連
結について説明する。Next, along with FIGS. 5 to 7 showing the rear vehicle body components, the trailing arm (1), the lateral link (21),
(31), (41) and the connection of the damper (51) to the vehicle body will be explained.

先ずトレーリングアーム（１）の前端寄り部の管材ゴム
ブツシュ（１８）をリヤフレーム（６１）の前寄り部下
面に固設した下方に開放するブラケッ）　（８２）内に
臨ませ、ゴムブツシュ（１Ｂ）内を挿通する軸線をほぼ
車体横方向とした支軸（１９）をブラケット（８２）の
左右間に架設する。First, place the tubular rubber bushing (18) near the front end of the trailing arm (1) into the downwardly opening bracket (82) fixed to the lower surface near the front of the rear frame (61), and then insert the rubber bushing (1B). A support shaft (19) is installed between the left and right sides of the bracket (82), with its axis passing through the bracket (19) substantially in the lateral direction of the vehicle body.

−・方、これより前方のリヤフロア（７１）前部のクロ
スメンバ（７２）の端部に下方へ開放するコ字形ブラケ
ッ）　（７３）を固設し、第１ラテラルリンク（２１）
の内側端の管材ゴムブツシュ（２０内を挿通し、且つリ
ンク（２１）外側端の支軸（２３）と軸線が平行なる支
軸（２５）をブラケッ）　（７３）の前後間に架設する
。-, a U-shaped bracket (73) that opens downward is fixed to the end of the cross member (72) in front of the rear floor (71), and the first lateral link (21)
A support shaft (25) is inserted between the tube rubber bush (20) at the inner end of the link (21) and whose axis is parallel to the support shaft (23) at the outer end of the link (21), and is installed between the front and rear of the bracket (73).

またリヤフレーム（８１）後部のクロスメンバ（８５）
を架設した部位より前方の外側面には外側方に開放する
二字形ブラケッ）　（８３）を固設し、第２ラテラルリ
ンク（３１）の内側端の管材ゴムブツシュ（３４）内を
挿通し、且つリンク（３１）外側端の支軸（３３）と軸
線が平行なる支軸（３５）をブラケット（ｌｌｔ３）の
前後間に架設する。Also, the cross member (85) at the rear of the rear frame (81)
A double-shaped bracket (83) that opens outward is fixed on the outer surface in front of the part where the second lateral link (31) is constructed, and is inserted into the tubular rubber bush (34) at the inner end of the second lateral link (31). A support shaft (35) whose axis is parallel to the support shaft (33) at the outer end of the link (31) is installed between the front and rear of the bracket (llt3).

更にリヤフレーム（８１）後部のクロスメンバ（Ｓ５）
の端部寄り下面には下方に開放する二字形ブラケット（
６８）を固設し、第３ラテラルリンク（４１）の内側端
の管材ゴムブツシュ（４４）内を挿通し、且つリンク（
４１）外側端の支軸（４３）と軸線が平行なる支軸（４
５）をブラケット（８６）の前後間に架設する。Furthermore, the cross member (S5) at the rear of the rear frame (81)
There is a double-shaped bracket (
68) is fixedly installed, inserted through the tube rubber bushing (44) at the inner end of the third lateral link (41), and the link (
41) A support shaft (4) whose axis is parallel to the support shaft (43) at the outer end
5) is installed between the front and rear of the bracket (86).

モしてリヤフレーム（８１）のクロスメンバ（＋３５）
（７）はぼ外側方のホイールハウス（８１）部位に形成
したタンパハウジング（８２）にダンパ（５１）の上端
を連結する。゛ 斯くシてリヤフレーム（８１）、リヤフロアクロス／’
　ン／＜　（７２）及（／リヤフレームクロスメンバ（
６５）に対して、トレーリングアーム（１）を枢着点（
Ｅ）で、第１乃至第３ラテラルリンク（２１）、（３１
）、（４１）を各枢着点ＣＦ）、（Ｇ）、（）ｌ）で、
またホイールハウス（８１）に対レダンハ（５１）を連
結点（１）でそれぞれ連結支持する。Cross member (+35) of the rear frame (81)
(7) Connect the upper end of the damper (51) to the tamper housing (82) formed in the wheel house (81) portion on the outer side.゛Thus rear frame (81), rear floor cross/'
/< (72) and (/rear frame cross member (
65), attach the trailing arm (1) to the pivot point (
E), the first to third lateral links (21), (31
), (41) at each pivot point CF), (G), ()l),
Further, the pair of redundant wheels (51) are connected and supported to the wheel house (81) at connection points (1).

ところで、リヤフロア（７１）後部の下方空間であって
、リヤフレームクロスメンバ（８５）の前方空間には燃
料タンク（９１）が配置されており、第１ラテラルリン
ク（２りの車体側枢着点（Ｆ）は燃料タンク（９１）の
前方に位置し、また第３ラテラルリンク（４１）の車体
側枢着点（Ｈ）は燃料タンク（９１）の後方に位置し、
更に第２ラテラルリンク（３１）の車体側枢着点（Ｇ）
は燃料タンク（９１）の上方に位置している。By the way, a fuel tank (91) is arranged in the space below the rear of the rear floor (71) and in front of the rear frame cross member (85), and the first lateral link (two pivot points on the body side (F) is located in front of the fuel tank (91), and the vehicle body side pivot point (H) of the third lateral link (41) is located in the rear of the fuel tank (91),
Furthermore, the vehicle body side pivot point (G) of the second lateral link (31)
is located above the fuel tank (91).

以上のよ、うに特にトレーリングアーム（１）に車体側
枢着点（Ｅ）より前方へ突出する延長部（５）を形成し
、この前方延長部（５）に第１ラテラルリンク（２１）
を連結したため、アーム（１）中間部に連結した場合に
較べ第１ラテラルリンク（２１）はアーム（１）の枢着
点（Ｅ）に近づくので、そのリンク長は実施例のように
比較的短いもので足りることとなる。As described above, in particular, the trailing arm (1) is formed with an extension part (5) that projects forward from the pivot point (E) on the vehicle body side, and the first lateral link (21) is formed on this front extension part (5).
Since the first lateral link (21) is closer to the pivot point (E) of the arm (1) than when it is connected to the intermediate part of the arm (1), the link length is relatively shorter as in the embodiment. A short one will suffice.

またトレーリングアーム（１）の車体側枢着点（Ｅ）の
下方にはリンクが存在しないので、最低地上高を稼ぐこ
とができる。Further, since there is no link below the pivot point (E) on the vehicle body side of the trailing arm (1), the minimum ground clearance can be increased.

そしてトレーリングアーム（１）の車体側枢着点（Ｅ）
より前方に第１ラテラルリンク（２１）を連結したこと
により後方の第３ラテラルリンク（４１）と第１ラテラ
ルリンク（２１）とのスパンを従来よりも大きく採るこ
とができるので、車輪（１６）のタイヤ（１７）　ｔａ
地点に作用するサイドフォースに対するトー剛性を従来
よりも十分に高く維持することができる。And the pivot point (E) on the vehicle body side of the trailing arm (1)
By connecting the first lateral link (21) further forward, the span between the third lateral link (41) at the rear and the first lateral link (21) can be made larger than before, so that the wheels (16) Tire (17) ta
The toe rigidity against the side force acting on the point can be maintained sufficiently higher than before.

以上において、トレーリングアーム（１）の車体側枢着
点（Ｅ）に介装さ−れるゴムブツシュ（１８）を挿通す
る支軸（１３）の軸線（Ｌ）を第８図（ａ）に示すよう
に平面視において、車輪（１６）の回転中心（０）を中
心とする円弧（Ｐ）の接線方向に配置する。つまり平面
視にて中心（０）とした円弧（Ｐ）の半径（Ｒ）に対し
、枢着点（Ｅ）で支軸（１８）を直角方向に配置する。In the above, the axis (L) of the support shaft (13) that passes through the rubber bush (18) interposed at the pivot point (E) on the vehicle body side of the trailing arm (1) is shown in FIG. 8(a). When viewed from above, it is arranged in the tangential direction of a circular arc (P) centered on the rotation center (0) of the wheel (16). That is, the support shaft (18) is disposed at the pivot point (E) in a direction perpendicular to the radius (R) of the circular arc (P) centered at (0) in plan view.

このようにトレーリングアーム（１）の車体側枢着点（
Ｅ）における支軸（１８）を平面視で傾斜させて配置し
たため、車輪（１６）のバウンド、リバウンド時におい
て、ゴムブツシュ（１８）には軸線（Ｌ）方向の剪断力
のみが作用するので、軸線（Ｌ）に沿ってトレーリング
アーム（１）が車体内側で、且つ後方ヘスムーズに移動
するように赫る。In this way, the pivot point of the trailing arm (1) on the vehicle body side (
Since the support shaft (18) in E) is arranged so as to be inclined in plan view, when the wheel (16) bounces or rebounds, only the shearing force in the direction of the axis (L) acts on the rubber bush (18). (L) so that the trailing arm (1) moves smoothly toward the inside of the vehicle body and toward the rear.

第１ラテラルリンク（２１）と第３ラテラルリンク（４
１）によりバウンド、リバウンド時において、トレーリ
ングアーム（１）はほぼ平行移動（微少なトーイン移動
）されるが、この時、トレーリングアーム（１）のゴム
ブツシュ（１８）の軸線（Ｌ）が平面視にて車輪（１８
）の回転中心（０）を中心とする円弧（Ｐ）の接線方向
となっているため、ゴムブツシュ（１８）には軸＆ｉ　
（Ｌ）方向の剪断力が作用するのみとなり、この方向に
対して最も変形し易いゴムブツシュ（１８）を採用する
ことでトレーリングアーム（１）は軸線（Ｌ）に沿って
容易に移動することとなる。The first lateral link (21) and the third lateral link (4
1), the trailing arm (1) is moved almost in parallel (slight toe-in movement) during bounce and rebound, but at this time, the axis (L) of the rubber bush (18) of the trailing arm (1) is flat. Wheels (18)
) is tangential to the circular arc (P) centered on the rotation center (0), so the rubber bush (18) has a shaft &i
Only the shearing force in the (L) direction is applied, and by using the rubber bushing (18) which is most easily deformed in this direction, the trailing arm (1) can easily move along the axis (L). becomes.

（発明の効果） 以上のように本発明によれば、前端側が車体にゴムブツ
シュを介して枢着され、後端側で車輪を回転自在に支持
し、車体前後方向に配置されるトレーリングアームと、
一端を車体に他端をトレーリングアームに連結され、車
体横方向に配置される複数のラテラルリンクより成る車
両のリヤサスペンションにおいて、トレーリングアーム
の枢着軸線を平面視で車輪の回転中心を中心とする円弧
の接線方向に配置したため、バウンド、リバウンド時に
おけるトレーリングアームの移動を容易に行わしめるこ
とができる。(Effects of the Invention) As described above, according to the present invention, the front end side is pivotally connected to the vehicle body via a rubber bushing, the rear end side rotatably supports the wheel, and the trailing arm is disposed in the longitudinal direction of the vehicle body. ,
In a vehicle rear suspension consisting of a plurality of lateral links arranged in the lateral direction of the vehicle body, with one end connected to the vehicle body and the other end connected to the trailing arm, the pivot axis of the trailing arm is centered around the rotation center of the wheel when viewed from above. Since the trailing arm is disposed in the tangential direction of the arc, the trailing arm can be easily moved during bounding and rebounding.

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

第１図は本リヤサスペンションの斜視図、第２図乃至第
４図は開平面図、側面図及び背面図、第５図は後部車体
構成部材を示す平面図、第６図及び第７図は同側面図と
背面図、第８図（ａ）及び（ｂ）は本構造のリヤサスペ
ンションの模式的平面図と比較例の模式的平面図である
。 尚、図面中、（１）はトレーリングアーム、（５）は前
方延長部、（１５）はアクスル、（１６）は車輪、（１
８）はゴムブツシュ、（１８）は枢着軸、（２１）、（
３１）　。 （４１）はラテラルリンク、（５１）はダンパである。 第８図Fig. 1 is a perspective view of the present rear suspension, Figs. 2 to 4 are open plan views, side views, and rear views, Fig. 5 is a plan view showing rear vehicle body components, and Figs. 6 and 7 are The same side view and rear view, and FIGS. 8(a) and 8(b) are a schematic plan view of the rear suspension of this structure and a schematic plan view of a comparative example. In addition, in the drawing, (1) is the trailing arm, (5) is the front extension part, (15) is the axle, (16) is the wheel, and (1) is the front extension part.
8) is a rubber bushing, (18) is a pivot shaft, (21), (
31). (41) is a lateral link, and (51) is a damper. Figure 8

Claims (1)

【特許請求の範囲】 前端側が車体にゴムブッシュを介して枢着され、後端側
で車輪を回転自在に支持し、車体前後方向に配置される
トレーリングアームと、一端を車体に他端をトレーリン
グアームに連結され、車体横方向に配置される複数のラ
テラルリンクより成る車両のリヤサスペンションにおい
て、 トレーリングアームの枢着軸線を平面視で車輪の回転中
心を中心とする円弧の接線方向に配置したことを特徴と
する車両のリヤサスペンション。[Claims] A trailing arm whose front end side is pivotally connected to the vehicle body via a rubber bush, whose rear end side rotatably supports a wheel, and which is disposed in the longitudinal direction of the vehicle body; In a vehicle rear suspension that is connected to a trailing arm and consists of a plurality of lateral links arranged in the lateral direction of the vehicle body, the pivot axis of the trailing arm is oriented in the tangential direction of an arc centered on the rotation center of the wheel in a plan view. A rear suspension of a vehicle characterized by its arrangement.
JP14696985A 1985-07-03 1985-07-04 Rear suspension for vehicle Pending JPS628803A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14696985A JPS628803A (en) 1985-07-04 1985-07-04 Rear suspension for vehicle
US06/881,775 US4717171A (en) 1985-07-03 1986-07-03 Wheel suspension for road vehicles
EP86305156A EP0207795B1 (en) 1985-07-03 1986-07-03 Wheel suspension
DE8686305156T DE3681085D1 (en) 1985-07-03 1986-07-03 WHEEL SUSPENSION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14696985A JPS628803A (en) 1985-07-04 1985-07-04 Rear suspension for vehicle

Publications (1)

Publication Number Publication Date
JPS628803A true JPS628803A (en) 1987-01-16

Family

ID=15419670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14696985A Pending JPS628803A (en) 1985-07-03 1985-07-04 Rear suspension for vehicle

Country Status (1)

Country Link
JP (1) JPS628803A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110513A (en) * 1980-11-14 1982-07-09 Bayerische Motoren Werke Ag Independent suspension means for wheel, camber thereof change and which is not steered, when spring for automobile, particularly, passenger car, work
JPS6035615A (en) * 1983-08-08 1985-02-23 Mazda Motor Corp Rear suspension for automobile
JPS6064008A (en) * 1983-09-19 1985-04-12 Mazda Motor Corp Rear suspension of car

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110513A (en) * 1980-11-14 1982-07-09 Bayerische Motoren Werke Ag Independent suspension means for wheel, camber thereof change and which is not steered, when spring for automobile, particularly, passenger car, work
JPS6035615A (en) * 1983-08-08 1985-02-23 Mazda Motor Corp Rear suspension for automobile
JPS6064008A (en) * 1983-09-19 1985-04-12 Mazda Motor Corp Rear suspension of car

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