FR2693407A1 - Vehicle suspension with floating damper - includes suspension arm for wheel,which is pivoted on fixed element of chassis around horizontal axis parallel to longitudinal direction of vehicle with damper also mounted parallel to horizontal lengthwise axis of vehicle - Google Patents

Vehicle suspension with floating damper - includes suspension arm for wheel,which is pivoted on fixed element of chassis around horizontal axis parallel to longitudinal direction of vehicle with damper also mounted parallel to horizontal lengthwise axis of vehicle Download PDF

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Publication number
FR2693407A1
FR2693407A1 FR9208507A FR9208507A FR2693407A1 FR 2693407 A1 FR2693407 A1 FR 2693407A1 FR 9208507 A FR9208507 A FR 9208507A FR 9208507 A FR9208507 A FR 9208507A FR 2693407 A1 FR2693407 A1 FR 2693407A1
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FR
France
Prior art keywords
vehicle
damper
suspension
arm
chassis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9208507A
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French (fr)
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FR2693407B1 (en
Inventor
Hillion Didier
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR9208507A priority Critical patent/FR2693407B1/en
Publication of FR2693407A1 publication Critical patent/FR2693407A1/en
Application granted granted Critical
Publication of FR2693407B1 publication Critical patent/FR2693407B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001—Arrangements for attachment of dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • 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
    • B60G2204/40—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
    • B60G2206/011—Modular constructions
    • B60G2206/0114—Independent suspensions on subframes

Abstract

The suspension arm (3) for the wheel (1) is hinged on a fixed element (2) of the chassis along the axis (4) which is parallel to the horizontal axis of the vehicle. The damper (18) is mounted with one end attached to the suspension arm and the other to the chassis, via the two plates (12). Each plate (12) is triangular and has its corner (9) attached to the end of the damper, its corner (10) fixed to a fixed point (8) on the chassis, and the corner (11) carrying a second fixed axis (14) around which pivots a stub shaft (15) connected to the suspension arm (3). The damper is compressed during suspension bump, and extended on rebound, and may be made as a sprung unit. ADVANTAGE - The suspension can be made compact, with minimum intrusion into the body space.

Description

SUSPENSION DE VEEIICULE A AMORTISSEUR FLOTTANT
La présente invention se rapporte à un élément de suspension pour véhicule automobile. Plus précisément, elle concerne une suspension à amortisseur horizontal, qualifiée également de suspension à amortisseur flottant.VEHICLE SUSPENSION WITH FLOATING SHOCK ABSORBER
The present invention relates to a suspension element for a motor vehicle. More specifically, it relates to a suspension with horizontal damper, also qualified as a suspension with floating damper.

La publication FR 2 579 144 de la demanderesse, relative à un élément de suspension, notamment pour véhicule automobile, décrit différents types de montages de suspension à amortisseur horizontal, selon lesquels, l'amortisseur est fixé par une première extrémité sur le bras de suspension, et par une seconde extrémité sur le châssis ou sur une biellette, elle-même articulée sur celui-ci. Cette disposition, qui permet de réduire considérablement l'espace réservé habituellement au niveau du plancher du véhicule pour disposer l'amortisseur, nécessite toutefois de prévoir sur la caisse, un logement et une chapelle d'amortisseur.The applicant's publication FR 2 579 144, relating to a suspension element, in particular for a motor vehicle, describes different types of suspension arrangements with horizontal damper, according to which, the damper is fixed by a first end to the suspension arm , and by a second end on the chassis or on a link, itself articulated on the latter. This arrangement, which makes it possible to considerably reduce the space usually reserved at the level of the vehicle floor for placing the shock absorber, however requires the provision of a housing and a shock absorber chapel on the body.

Par la publication US 4561 519, relative à une suspension arrière de motocyclette, on connaît un autre type de système de montage horizontal d'amortisseur. Le dispositif décrit dans cette publication, comporte un jeu de leviers montés en parallélogramme sur l'extrémité avant du bras de suspension. L'amortisseur est ici disposé transversalement au bras de suspension. Un tel dispositif semble toutefois difficilement transposable sur une voiture de tourisme.By publication US 4561 519, relating to a rear suspension of a motorcycle, another type of horizontal shock absorber mounting system is known. The device described in this publication comprises a set of levers mounted in parallelogram on the front end of the suspension arm. The damper is here arranged transversely to the suspension arm. However, such a device seems difficult to transpose to a passenger car.

Conformément à la publication FR 2 579 144, la présente invention concerne une suspension à amortisseur flottant, monté parallèlement au bras de suspension. Elle propose un montage particulièrement compact, permettant de libérer un espace précieux au niveau du plancher du véhicule.According to publication FR 2 579 144, the present invention relates to a suspension with floating damper, mounted parallel to the suspension arm. It offers a particularly compact assembly, making it possible to free up precious space at the level of the vehicle floor.

L'invention concerne une suspension de véhicule à amortisseur flottant, comportant un bras de suspension de roue, articulé sur un élément fixe du châssis autour d'un axe horizontal parallèle à la direction longitudinale du véhicule, et un amortisseur horizontal.The invention relates to a vehicle suspension with floating shock absorber, comprising a wheel suspension arm, articulated on a fixed element of the chassis around a horizontal axis parallel to the longitudinal direction of the vehicle, and a horizontal shock absorber.

Cette suspension est caractérisée en ce que l'amortisseur est sensiblement parallèle à l'axe d'articulation du bras sur le châssis, et en ce qu'il est raccordé par chacune de ses deux extrémités au bras de suspension et à l'élément fixe du châssis.This suspension is characterized in that the shock absorber is substantially parallel to the articulation axis of the arm on the chassis, and in that it is connected by each of its two ends to the suspension arm and to the fixed element of the chassis.

Selon un mode de réalisation de l'invention, chaque extrémité de l'amortisseur est articulée sur une plaque raccordée à l'élément fixe du châssis et au bras de suspension.According to one embodiment of the invention, each end of the shock absorber is articulated on a plate connected to the fixed element of the chassis and to the suspension arm.

Selon un mode de réalisation de l'invention, la plaque est de forme triangulaire sa première extrémité étant articulée directement à
I'extrémité de l'amortisseur, sa seconde extrémité étant articulée sur un premier axe fixe porté par l'élément de châssis, et sa troisième extrémité portant un second axe fixe, autour duquel pivote une biellette, raccordée au bras de suspension.According to one embodiment of the invention, the plate is triangular in shape, its first end being hinged directly to
The end of the shock absorber, its second end being articulated on a first fixed axis carried by the chassis element, and its third end carrying a second fixed axis, around which pivots a connecting rod, connected to the suspension arm.

Selon un mode de réalisation de I'invention, la première et la troisième extrémité de la plaque sont plus rapprochées du bras que sa seconde extrémité, de façon telle que la plaque est inclinée obliquement en direction de I'amortisseur et du bras de suspension.According to one embodiment of the invention, the first and third ends of the plate are closer to the arm than its second end, so that the plate is inclined obliquely in the direction of the damper and of the suspension arm.

Selon un mode de réalisation de l'invention, le pivotement des deux plaques par rapport à l'élément fixe du châssis, lors du débattement du bras entraîne la compression longitudinale de I'amortisseur en position de choc et son extension en position de rebond.According to one embodiment of the invention, the pivoting of the two plates relative to the fixed element of the chassis, during the movement of the arm causes the longitudinal compression of the damper in the shock position and its extension in the rebound position.

Selon un mode de réalisation de l'invention, l'amortisseur intègre le ressort de la suspension selon un ensemble combiné ressortamortisseur.According to one embodiment of the invention, the shock absorber incorporates the suspension spring according to a combined shock absorber assembly.

L'invention sera mieux comprise à la lecture de la description suivante d'un mode de réalisation de celle-ci, en liaison avec les dessins annexés, surlesquels sur lesquels: - la figure 1 est une vue de dessus de la suspension de l'invention
en position de choc, et - la figure 2 représente la même suspension en position de rebond.The invention will be better understood on reading the following description of an embodiment thereof, in conjunction with the accompanying drawings, in which: - Figure 1 is a top view of the suspension of the invention
in the impact position, and - Figure 2 shows the same suspension in the rebound position.

En se reportant aux figures 1, et 2, on voit que la roue 1 est raccordée de façon classique à un élément fixe 2 du véhicule (par exemple le berceau du moteur, s'il s'agit d'une roue avant), par l'intermédiaire d'un bras de suspension 3. L'articulation du bras 3, sur cet élément fixe 2, autour d'un axe 4, parallèle à la direction longitudinale du véhicule, permet à la roue 1 de débattre en hauteur.Referring to Figures 1, and 2, we see that the wheel 1 is conventionally connected to a fixed element 2 of the vehicle (for example the engine cradle, if it is a front wheel), by by means of a suspension arm 3. The articulation of the arm 3, on this fixed element 2, around an axis 4, parallel to the longitudinal direction of the vehicle, allows the wheel 1 to debate in height.

Sur ces figures, relatives à une suspension de roue avant, on a également fait apparaître l'axe 5 de transmission de la roue 1, bien que l'invention s'applique aussi bien à une suspension de roue avant, que de roue arrière. L'amortisseur 18 de la transmission, s'étend horizontalement, selon une direction sensiblement parallèle à la direction longitudinale du véhicule. Le ressort de la suspension, qui n'est pas représenté sur les figures, pour des raisons de clarté, pourra avantageusement être un ressort pneumatique, combiné à l'amortisseur.In these figures, relating to a front wheel suspension, the axis 5 of transmission of the wheel 1 has also been shown, although the invention applies both to a front wheel suspension and to a rear wheel. The damper 18 of the transmission extends horizontally, in a direction substantially parallel to the longitudinal direction of the vehicle. The suspension spring, which is not shown in the figures, for reasons of clarity, may advantageously be an air spring, combined with the shock absorber.

De part et d'autre du bras de suspension 3, le longeron ou le berceau 2 supporte deux étriers 6, dont les extrémités 7, recourbées vers
I'intérieur en direction du bras 3, portent chacune un premier axe 8, orienté obliquement vers le haut et vers la roue 1. Une plaque triangulaire 12 est articulée par une première extrémité 9 à chaque extrémité 16 de l'amortisseur 18. Les plaques 12 sont articulées par leur seconde extrémité 10 sur chaque premier axe 8. La troisième extrémité 11 des plaques 12 présente une partie repliée 13, munie d'un second axe 14, sur lequel est articulée une biellette 15, raccordée par l'intermédiaire d'un pivot 17 sur le bras de suspension 3. On either side of the suspension arm 3, the spar or the cradle 2 supports two stirrups 6, the ends 7 of which are bent towards
The interior in the direction of the arm 3, each carry a first axis 8, oriented obliquely upwards and towards the wheel 1. A triangular plate 12 is articulated by a first end 9 at each end 16 of the damper 18. The plates 12 are articulated by their second end 10 on each first axis 8. The third end 11 of the plates 12 has a folded part 13, provided with a second axis 14, on which is articulated a rod 15, connected by means of a pivot 17 on the suspension arm 3.

Comme il ressort des figures 1, et 2, le pivotement du bras 3, autour de l'axe 4, entraîne par l'intermédiaire des biellettes 15, la rotation des plaques triangulaires 12 autour des premiers axes 8.As can be seen in FIGS. 1 and 2, the pivoting of the arm 3 around the axis 4, by means of the connecting rods 15, causes the rotation of the triangular plates 12 around the first axes 8.

Conformément à I'invention, les plaques 12 sont orientées obliquement vers la roue 1, en direction de l'amortisseur 18 et du bras de suspension 3. Cette orientation est assurée grâce au fait que la première extrémité 9 de la plaque 12 articulée sur l'amortisseur 18 et sa troisième extrémité 11, reliée à la biellette 15 sont plus rapprochées du bras 3, que sa seconde extrémité 10, reliée à l'étrier 6. Grâce à cette disposition, la rotation des plaques 12, autour des premiers axes 8, provoque un déplacement longitudinal rectiligne des extrémités 16 de l'amortisseur 18.According to the invention, the plates 12 are oriented obliquely towards the wheel 1, in the direction of the damper 18 and of the suspension arm 3. This orientation is ensured by the fact that the first end 9 of the plate 12 articulated on the shock absorber 18 and its third end 11, connected to the link 15 are closer to the arm 3, than its second end 10, connected to the stirrup 6. Thanks to this arrangement, the rotation of the plates 12, around the first axes 8 , causes a rectilinear longitudinal displacement of the ends 16 of the damper 18.

En situation de choc, illustrée par la figure 1, le soulèvement de la roue 1 et du bras 3, entraîne la compression de l'amortisseur 18, sous l'effet du rabattement des plaques triangulaires 12, en direction de celui-ci. En revanche, en situation de rebond, l'abaissement de la roue 1 et de l'amortisseur 18 entraîne, conformément à la figure 2, une extension de l'amortisseur 18 sous l'effet de l'écartement des plaques 12.In a shock situation, illustrated in FIG. 1, the lifting of the wheel 1 and of the arm 3, causes the shock absorber 18 to be compressed, under the effect of the folding of the triangular plates 12, in the direction of the latter. On the other hand, in a rebound situation, the lowering of the wheel 1 and of the damper 18 causes, in accordance with FIG. 2, an extension of the damper 18 under the effect of the spacing of the plates 12.

Enfin, il faut noter que le montage proposé par l'invention ne comporte pas de liaison directe entre la caisse et l'amortisseur.Finally, it should be noted that the assembly proposed by the invention does not include a direct connection between the body and the shock absorber.

Comme indiqué plus haut, il en résulte un gain de place au niveau de la caisse, qui est particulièrement appréciable, notamment dans le bloc avant du véhicule. As indicated above, this results in a saving of space at the level of the body, which is particularly appreciable, in particular in the front unit of the vehicle.

Claims (6)

REVENDICATIONS 1) Suspension de véhicule à amortisseur flottant, comportant un1) Vehicle suspension with floating damper, comprising a bras (3) de suspension de roue (1), articulé sur un élément fixe wheel suspension arm (3) (1), articulated on a fixed element (2) du châssis autour d'un axe horizontal (4) parallèle à la (2) of the chassis around a horizontal axis (4) parallel to the direction longitudinale du véhicule, et un amortisseur (18) longitudinal direction of the vehicle, and a shock absorber (18) horizontal, caractérisé en ce que l'amortisseur (18) est horizontal, characterized in that the damper (18) is sensiblement parallèle à l'axe (4) d'articulation du bras (3) sur substantially parallel to the axis (4) of articulation of the arm (3) on le châssis, et en ce qutil est raccordé par chacune de ses deux the chassis, and in that it is connected by each of its two extrémités (16) au bras de suspension (3) et à l'élément fixe (2) ends (16) to the suspension arm (3) and to the fixed element (2) du châssis. of the chassis. 2) Suspension de véhicule selon la revendication 1, caractérisé en2) vehicle suspension according to claim 1, characterized in ce que chaque extrémité (16) de l'amortisseur (18), est articulée that each end (16) of the damper (18) is articulated sur une une plaque (12), raccordée à l'élément fixe (2) du on a plate (12), connected to the fixed element (2) of the châssis et au bras de suspension (3). chassis and suspension arm (3). 3) Suspension de véhicule selon la revendication 2, caractérisé en3) Vehicle suspension according to claim 2, characterized in ce que la plaque (12) est de forme triangulaire sa première that the plate (12) is triangular its first extrémité (9) étant articulée directement à l'extrémité de end (9) being articulated directly at the end of l'amortisseur (18), sa seconde extrémité (10), étant articulée the shock absorber (18), its second end (10), being articulated sur un premier axe fixe (8), porté par l'élément de châssis (2), on a first fixed axis (8), carried by the chassis element (2), et sa troisième extrémité (11) portant un second axe fixe (14), and its third end (11) carrying a second fixed axis (14), autour duquel pivote un biellette (15), raccordée au bras de around which pivots a link (15), connected to the arm of suspension (3). suspension (3). 4) Suspension de véhicule selon les revendications 2 ou 3,4) Vehicle suspension according to claims 2 or 3, caractérisée en ce que la première et la troisième extrémité (9, characterized in that the first and third ends (9, bras de suspension (3). suspension arm (3). inclinée obliquement en direction de l'amortisseur (18) et du inclined obliquely towards the shock absorber (18) and the seconde extrémité (10), de façon telle que la plaque (12) est second end (10), so that the plate (12) is 11) de la plaque (12) sont plus rapprochées du bras (3) que sa 11) of the plate (12) are closer to the arm (3) than its 5) Suspension de véhicule selon les revendications 2, 3 ou 4,5) Vehicle suspension according to claims 2, 3 or 4, caractérisé en ce que le pivotement des deux plaques (12) par  characterized in that the pivoting of the two plates (12) by rapport à l'élément fixe (2) du châssis, lors du débattement du relative to the fixed element (2) of the chassis, during the movement of the bras (3), entraîne la compression longitudinale de l'amortisseur arm (3), causes longitudinal compression of the shock absorber (18) en position de choc, et son extension en position de (18) in the shock position, and its extension in the rebond. rebound. 6) Suspension de véhicule selon l'une quelconque des6) Vehicle suspension according to any one of revendications précédentes caractérisé en ce que l'amortisseur previous claims characterized in that the damper (18), intègre le ressort de la suspension, selon un ensemble (18), incorporates the suspension spring, in a set combiné ressort-amortisseur.  combined shock absorber.
FR9208507A 1992-07-09 1992-07-09 Vehicle suspension with floating shock absorber. Expired - Fee Related FR2693407B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9208507A FR2693407B1 (en) 1992-07-09 1992-07-09 Vehicle suspension with floating shock absorber.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9208507A FR2693407B1 (en) 1992-07-09 1992-07-09 Vehicle suspension with floating shock absorber.

Publications (2)

Publication Number Publication Date
FR2693407A1 true FR2693407A1 (en) 1994-01-14
FR2693407B1 FR2693407B1 (en) 1994-09-16

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FR9208507A Expired - Fee Related FR2693407B1 (en) 1992-07-09 1992-07-09 Vehicle suspension with floating shock absorber.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7625000B2 (en) 2004-12-06 2009-12-01 Zarach Industries, Inc. Variable ratio floating suspension system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1051965A (en) * 1952-03-01 1954-01-20 Variable flexibility spring system, applicable, in particular, to vehicle suspension
GB1372051A (en) * 1971-12-09 1974-10-30 Rover Co Ltd Motor vehicle suspensions
EP0082496A1 (en) * 1981-12-18 1983-06-29 Yamaha Motor Co., Ltd. Shock absorbing device for the rear wheel of a two-wheeled vehicle
US4561519A (en) * 1982-05-11 1985-12-31 Honda Giken Kogyo Kabushiki Kaisha Rear suspension for a motorcycle
JPH0224211A (en) * 1988-07-12 1990-01-26 Suzuki Motor Co Ltd Wheel suspension device for automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1051965A (en) * 1952-03-01 1954-01-20 Variable flexibility spring system, applicable, in particular, to vehicle suspension
GB1372051A (en) * 1971-12-09 1974-10-30 Rover Co Ltd Motor vehicle suspensions
EP0082496A1 (en) * 1981-12-18 1983-06-29 Yamaha Motor Co., Ltd. Shock absorbing device for the rear wheel of a two-wheeled vehicle
US4561519A (en) * 1982-05-11 1985-12-31 Honda Giken Kogyo Kabushiki Kaisha Rear suspension for a motorcycle
JPH0224211A (en) * 1988-07-12 1990-01-26 Suzuki Motor Co Ltd Wheel suspension device for automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 164 (M-957)(4107) 30 Mars 1990 & JP-A-02 024 211 ( SUZUKI ) 26 Janvier 1990 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7625000B2 (en) 2004-12-06 2009-12-01 Zarach Industries, Inc. Variable ratio floating suspension system

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