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FR2579144A1 - SUSPENSION ELEMENT, PARTICULARLY FOR MOTOR VEHICLE - Google Patents

SUSPENSION ELEMENT, PARTICULARLY FOR MOTOR VEHICLE Download PDF

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Publication number
FR2579144A1
FR2579144A1 FR8504444A FR8504444A FR2579144A1 FR 2579144 A1 FR2579144 A1 FR 2579144A1 FR 8504444 A FR8504444 A FR 8504444A FR 8504444 A FR8504444 A FR 8504444A FR 2579144 A1 FR2579144 A1 FR 2579144A1
Authority
FR
France
Prior art keywords
bar
suspension element
shock absorber
element according
arm
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
FR8504444A
Other languages
French (fr)
Other versions
FR2579144B1 (en
Inventor
Jacques Pierre
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 SA
Regie Nationale des Usines Renault
Original Assignee
Renault SA
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 SA, Regie Nationale des Usines Renault filed Critical Renault SA
Priority to FR8504444A priority Critical patent/FR2579144B1/en
Publication of FR2579144A1 publication Critical patent/FR2579144A1/en
Application granted granted Critical
Publication of FR2579144B1 publication Critical patent/FR2579144B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection 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
    • B60G21/04—Interconnection 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
    • B60G21/05—Interconnection 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
    • B60G21/055—Stabiliser bars
    • 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
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/02—Resilient suspensions for a single wheel with a single pivoted arm
    • B60G3/12—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle
    • B60G3/14—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid
    • 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
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/127—Mounting of springs or dampers with the mounting of springs or dampers moving so that the direction of the related force vector can be changed, thus contributing to a variation of the loading of the wheel

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

Abstract

Suspension element for a motor vehicle, of the type comprising a horizontal shock absorber. The end 4 of the said shock absorber opposite the body is securely fastened to a bar 20 whose other end 21 comprises an elastic bearing 22 situated substantially vertically in line with the point of attachment 3 of the shock absorber and by means of which it transmits antagonistic reactions to the body. Application to motor vehicle suspensions.

Description

ELEMENT DE SUSPENSION, NOTAMMENT POUR VEHICULE
AUTOMOBILE
La présente invention se rapporte à un élément de suspension pour véhicule automobile, et plus particulièrement au montage d'un amortisseur horizontal.SUSPENSION ELEMENT, PARTICULARLY FOR VEHICLE
AUTOMOTIVE
The present invention relates to a suspension element for a motor vehicle, and more particularly to the mounting of a horizontal damper.

On sait que dans ce cas, le filtrage des bruits de roulement par 1'é3astfcite horizontale des paliers du bras de suspension pose des problèmes. It is known that in this case, the filtering of rolling noises by the horizontal elasticity of the bearings of the suspension arm poses problems.

En effet, les montages classiques d'amortisseurs horizontaux sont générateurs de réactions sur le palier élastique du bras de suspension, dont la co m posante horizontale est élevée co m pte tenu de la ci8muLtiolication i m posée par cette disposition.Indeed, the conventional assemblies of horizontal dampers generate reactions on the elastic bearing of the suspension arm, the horizontal component of which is high, taking into account the ci8muLtiolication i m posed by this arrangement.

Le palier élastique est donc soumis à deux conditions contraires - être suffisa m ment rigide pour encaisser cette grande réaction
horizontale, - être suffisamment souple pour permettre les petits déplacements
horizontaux du bras, donc de la roue, qui assurent le filtrage des
bruits de roulement. The elastic bearing is therefore subject to two opposite conditions - being rigid enough to absorb this great reaction.
horizontal, - be flexible enough to allow small movements
horizontal of the arm, therefore of the wheel, which ensure the filtering of
rolling noises.

Le but de la présente invention est de remédier à cet antagonisme et sera décrit, à titre d'exemple non limitatif, au regard des figures 1 à 5 ci-jointes, qui se rapportent respectivement - la figure 1, à un schéma vu de côté du montage d'un amortisseur
horizontal selon l' état de la technique, - la figure 2, à un schéma analogue d'un montage selon l'invention, - les figures 3 à 5, à un schéma analogue de variantes du montage de
l'invention. The object of the present invention is to remedy this antagonism and will be described, by way of nonlimiting example, with regard to the attached figures 1 to 5, which relate respectively - FIG. 1, to a diagram seen from the side. mounting a shock absorber
horizontal according to the state of the art, - Figure 2, a similar diagram of an assembly according to the invention, - Figures 3 to 5, a similar diagram of variants of the assembly of
the invention.

Considérons le schéma de a figure 1 ; on voit que l'amortisseur 1 est
monté quasi horizontalement, de nlanière à laisser le maximum de place disponible au plancher 2 de la caisse du véhicule ; une de ses extrémités est articulée sur cette dernière par un axe 3 à cette dernière, tandis que 1' extrémité opposée est articulée sur le bras de suspension 6 par un axe 4 ; 0 est l'axe de la roue, 0' l'axe d' articulation du bras sur la caisse.Consider the diagram in Figure 1; we see that the shock absorber 1 is
mounted almost horizontally, so as to leave the maximum space available on floor 2 of the vehicle body; one of its ends is articulated on the latter by an axis 3 to the latter, while the opposite end is articulated on the suspension arm 6 by an axis 4; 0 is the axis of the wheel, 0 'the axis of articulation of the arm on the body.

Selon cette disposition la force F générée dans le palier 7 lors du fonctionnement de l'amortisseur entraine les inconvénients évoqués plus haut.According to this arrangement, the force F generated in the bearing 7 during the operation of the damper causes the drawbacks mentioned above.

La suspension selon la présente invention, illustrée à la figure 2, est un montage "direct" de l'amortisseur qui pallie ces défauts ; on voit qu'il diffère de celui de la figure 1 par la présence d'une barre 20 par exemple d'un corps creux réalisé en tôle enroulée, articulée à l'une de ses extrémités au sommet 4 de la tige de l'amortisseur, tandis que son extrémité opposée l'est en 21 à la caisse 2 du véhicule ; l'angle a fait que la barre 20 avec l'axe longitudinal de l'amortisseur est nettement aigu, de l'ordre de 30 ; la position de sa jonction 21 avec la caisse se fait approximativement à l'aplomb de l'extrémité 3 de l'amortisseur 1.The suspension according to the present invention, illustrated in FIG. 2, is a "direct" mounting of the damper which overcomes these defects; we see that it differs from that of Figure 1 by the presence of a bar 20 for example of a hollow body made of rolled sheet metal, articulated at one of its ends at the top 4 of the rod of the shock absorber , while its opposite end is at 21 to the body 2 of the vehicle; the angle made that the bar 20 with the longitudinal axis of the damper is clearly acute, of the order of 30; the position of its junction 21 with the body is approximately plumb with the end 3 of the shock absorber 1.

Le triangle ainsi constitué par la barre 20, l'amortisseur 1 et a droite passant par leurs points d'articulation à la caisse 2 est sensiblement isocèle.The triangle thus formed by the bar 20, the damper 1 and to the right passing through their points of articulation to the body 2 is substantially isosceles.

Le rôle de la barre 20 est d' encaisser la réaction antagoniste à la force d'amortissement et de la transmettre à un palier élastique 22 distinct du palier élastique du bras de suspension ; ceci permet ainsi, les désolidarisant, de leur donner une raideur différente à savoir plus grande pour le palier 22 que pour le palier 7.The role of the bar 20 is to absorb the antagonistic reaction to the damping force and to transmit it to an elastic bearing 22 distinct from the elastic bearing of the suspension arm; this thus makes it possible, by separating them, to give them a different stiffness, namely greater for the bearing 22 than for the bearing 7.

L'articulation 4 entre l'extrémité de l'amortisseur et la barre 20 est reliée par une biellette 23 sensiblement verticale au bras de suspension 6 afin de permettre le libre déplacement horizontal de ce bras ; on pourrait utiliser tout autre mode de liaison équivalent à la biellette 23, qui serait rigide en direction verticale et libre en direction horizontale 1a variante illustrée à la figure 3 représente un montage "direct retourné" de l'amortisseur 1 ; selon cette disposition, on constate que l'on inverse l'emplacement de l'amortisseur 1 et de la barre 20.The articulation 4 between the end of the shock absorber and the bar 20 is connected by a substantially vertical link 23 to the suspension arm 6 in order to allow the free horizontal movement of this arm; any other connection method equivalent to the link 23 could be used, which would be rigid in the vertical direction and free in the horizontal direction. The variant illustrated in FIG. 3 represents a "direct inverted" mounting of the damper 1; according to this arrangement, it can be seen that the location of the shock absorber 1 and of the bar 20 is reversed.

On obtient le même résultat au niveau des paliers 7 - 21 que selon la disposition de la figure 2.The same result is obtained at the levels 7 - 21 as according to the arrangement in FIG. 2.

Les montages représentés aux figures 4 et 5 sont du type "inversé" ils sont remarquables par le fait que l'amortisseur n'agit plus sur l'extrémité du bras qui porte la roue, mais sur un renvoi vertical 40 du bras 43, sensiblement à l'aplomb du palier 7 de fixation du bras 43 à la caisse 2 ; dans ces conditions l'extrémité opposée de l'amortisseur 1 est solidarisée à la caisse 2 au moyen d'un biellette sensiblement verticale 41, mobile angulairement en ses deux points de fixation 4 42.The assemblies shown in Figures 4 and 5 are of the "inverted" type. They are remarkable in that the shock absorber no longer acts on the end of the arm which carries the wheel, but on a vertical return 40 of the arm 43, substantially plumb with the bearing 7 for fixing the arm 43 to the body 2; under these conditions, the opposite end of the shock absorber 1 is secured to the body 2 by means of a substantially vertical link 41, angularly movable at its two fixing points 4 42.

Comme dans le cas des figures 2 et 3, on remarque la présence d'une barre 20 destinée à encaisser la réaction antagoniste à la force d'amortissement, fixée sur le bras 43 par l'intermédiaire d'un palier 22 relativement rigide et formant avec l'amortisseur 1 un angle aigu a ; le triangle constitué par les points d'attache de l'amortisseur 1 et de la barre 20 sur le renvoi 40 du bras 43, respectivement 21 et 44, ainsi que leur articulation 4, constitue un triangle sensiblement isocèle, dont la base 21 - 44 est mobile angulairement, puisque située sur le bras de suspension, sous l'influence des débattements verticaux de la roue.As in the case of FIGS. 2 and 3, we note the presence of a bar 20 intended to absorb the antagonistic reaction to the damping force, fixed on the arm 43 by means of a relatively rigid bearing 22 and forming with the damper 1 an acute angle a; the triangle formed by the attachment points of the shock absorber 1 and of the bar 20 on the reference 40 of the arm 43, respectively 21 and 44, as well as their articulation 4, constitutes a substantially isosceles triangle, the base of which 21 - 44 is angularly movable, since it is located on the suspension arm, under the influence of the vertical deflections of the wheel.

Dans cette configuration, le point 4 est fixe verticalement, mais libre de se déplacer horizontalement pour permettre le filtrage, ceci est obtenu par la biellette 1I1. In this configuration, point 4 is fixed vertically, but free to move horizontally to allow filtering, this is obtained by the link 1I1.

On ne sortira pas de la présente invention si le point d'attache de l'amortisseur opposé au point 3 ne se situe pas à l'articulation de la barre 20 et des biellettes 23 (ou 41),il il doit toutefois s'en trouver à proximité, mais peut être aux extrémités de la barre 20 ou de la @@@lette 23 (ou @).  We will not depart from the present invention if the attachment point of the shock absorber opposite point 3 is not located at the articulation of the bar 20 and the rods 23 (or 41), it must however find nearby, but can be at the ends of bar 20 or @@@ lette 23 (or @).

Par ailleurs, 'a fonction de la barre 20 peut être assurée par un organe existant ; il peut en être a'nsi en utilisant l'extrémité coudée de la narre anti-roulis du train correspondant, si sa forme s' y prête, ce qui économise l'emploi d'une pièce spécifique. Furthermore, the function of the bar 20 can be provided by an existing member; it can be so using the bent end of the anti-roll nar of the corresponding train, if its shape lends itself to it, which saves the use of a specific part.

Claims (9)

R EVEN DIC A TIO NSR EVEN DIC A TIO NS 1. Elément de suspension pour véhicule automobile, du type comportant un amortisseur horizontal, caractérisé par le fait que l' extrémité (4) dudit amortisseur opposée à la caisse est solidarisée à l'extrémité d'une barre (20) dont l'autre extrémité (21) comporte un palier élastique (22) situé sensiblement à l'aplomb du point d'attache (3) de l'amortisseur et par l'intermédiaire duquel il transmet à la caisse les réactions antagoni"tes. 1. Suspension element for a motor vehicle, of the type comprising a horizontal damper, characterized in that the end (4) of said damper opposite the body is secured to the end of a bar (20), the other end (21) comprises an elastic bearing (22) situated substantially in line with the attachment point (3) of the shock absorber and by means of which it transmits antagonistic reactions to the body. 2. Elé m ent de suspension selon la revendication 1, caractérisé en ce que le triangle formé par les points d'attache de l'amortisseur (3), de la barre (21) et leur jonction (4) constitue un triangle isocèle.2. Suspension element according to claim 1, characterized in that the triangle formed by the attachment points of the shock absorber (3), of the bar (21) and their junction (4) constitutes an isosceles triangle. 3. Elément de suspension selon la revendication 1, caractérisé en ce que l'angle compris entre la barre (20) et l'amortisseur (1) est aigu et de l'ordre de 300.3. Suspension element according to claim 1, characterized in that the angle between the bar (20) and the damper (1) is acute and of the order of 300. 4. Elément de suspension selon la revendication 1, caractérisé en ce que le point de jonction (4) de l'amortisseur (1) et de la barre (20) est articulé sur l'une des extrémités d'une biellette (23) dont l'autre est articulée sur l'extrémité du bras de suspension (6) portant la roue.4. Suspension element according to claim 1, characterized in that the junction point (4) of the damper (1) and the bar (20) is articulated on one of the ends of a link (23) the other of which is articulated on the end of the suspension arm (6) carrying the wheel. 5. Elém ent de suspension selon la revendication 1, caractérisé en ce que le point d'attache de l'amortisseur (1) opposé à sa jonction (11) avec la barre (20) est situé sur la caisse (2) du véhicule.5. suspension element according to claim 1, characterized in that the point of attachment of the shock absorber (1) opposite its junction (11) with the bar (20) is located on the body (2) of the vehicle . 6. Elément de suspension selon la revendication 1, caractérisé en ce que le point d'attache de l'amortisseur (1) opposé à sa jonction (4) avec la barre (20) est situé sur un renvoi vertical (40) du bras (43) situé sensiblement à l'aplomb du palier (7) de fixation du bras (LI3) à la caisse (2). 6. Suspension element according to claim 1, characterized in that the point of attachment of the shock absorber (1) opposite its junction (4) with the bar (20) is located on a vertical return (40) of the arm (43) located substantially in line with the bearing (7) for fixing the arm (LI3) to the body (2). 7. Elément de suspension selon la revendication 5, caractérisé en ce que le point d'attache de la barre (20) opposé à sa jonction (4) avec l'amortisseur (1) est situé sur un renvoi vertical (40) du bras (43) situé sensiblement à l'aplomb du palier (7) de fixation du bras (43) à la caisse (2).7. Suspension element according to claim 5, characterized in that the attachment point of the bar (20) opposite its junction (4) with the shock absorber (1) is located on a vertical return (40) of the arm (43) located substantially in line with the bearing (7) for fixing the arm (43) to the body (2). 8. Elém ent de suspension selon les revendications 5 et 7, caractérisé en 8. suspension element according to claims 5 and 7, characterized in ce que 'e point de jonction (4) de l'amortisseur (1) et de la barre (20) what is the junction point (4) of the shock absorber (1) and the bar (20) est articulé à l'une des extrémités d'une biellette (41) dont l'autre est is articulated at one end of a link (41) the other of which is articulée à son pqint de projection (42) sur la-caisse (2). articulated at its projection point (42) on the body (2). 9. olément de suspension selon la revendication 1, caractérisé en ce 9. suspension element according to claim 1, characterized in that que la barre (20) est constituée par I' extrémité coudée de la barre that the bar (20) is constituted by the bent end of the bar antiroulis du train correspondant.  anti-roll of the corresponding train.
FR8504444A 1985-03-22 1985-03-22 SUSPENSION ELEMENT, PARTICULARLY FOR MOTOR VEHICLE Expired FR2579144B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8504444A FR2579144B1 (en) 1985-03-22 1985-03-22 SUSPENSION ELEMENT, PARTICULARLY FOR MOTOR VEHICLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504444A FR2579144B1 (en) 1985-03-22 1985-03-22 SUSPENSION ELEMENT, PARTICULARLY FOR MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
FR2579144A1 true FR2579144A1 (en) 1986-09-26
FR2579144B1 FR2579144B1 (en) 1989-06-30

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Family Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203057A1 (en) * 1992-02-04 1993-08-05 Bayerische Motoren Werke Ag Wheel suspension for motor vehicle - uses intermediate arm and strut, to guide damper and spring leg
WO1994006643A1 (en) * 1992-09-15 1994-03-31 Applied Power Inc. Vibration dampening device
WO1995028312A2 (en) * 1994-04-18 1995-10-26 Nai Neway, Inc. Trailing arm suspension with lever arm
US5588665A (en) * 1996-03-19 1996-12-31 Nai Neway, Inc. Trailing arm suspension with lever arm
WO2006063776A3 (en) * 2004-12-15 2007-01-18 Garage Italia S R L Quadcycle
DE102011004709A1 (en) * 2011-02-25 2012-08-30 Zf Friedrichshafen Ag Wheel suspension for vehicle, has damper element pivotally mounted on rocker, and coupling bar whose one end is mounted on rocker, where bearing point of coupling bar at rocker is spaced from bearing point of damper element on rocker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503030A (en) * 1946-05-18 1950-04-04 George W Crabtree Hydraulic spring control means and their mounting on vehicles
FR1113524A (en) * 1954-11-17 1956-03-30 & Refection Tech & Moderne Con Shock absorber device for the suspension of motor vehicles
US3402940A (en) * 1965-03-22 1968-09-24 Renault Rear wheels suspension systems for motor vehicles
FR2366943A1 (en) * 1976-04-30 1978-05-05 Renault REAR TRAIN STRUCTURE FOR MOTOR VEHICLES
FR2392839A1 (en) * 1977-05-31 1978-12-29 Renault REAR TRAIN STRUCTURE FOR MOTOR VEHICLES
FR2393690A1 (en) * 1977-06-10 1979-01-05 Citroen Sa SUSPENSION FOR WHEELS OF INDEPENDENT VEHICLES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503030A (en) * 1946-05-18 1950-04-04 George W Crabtree Hydraulic spring control means and their mounting on vehicles
FR1113524A (en) * 1954-11-17 1956-03-30 & Refection Tech & Moderne Con Shock absorber device for the suspension of motor vehicles
US3402940A (en) * 1965-03-22 1968-09-24 Renault Rear wheels suspension systems for motor vehicles
FR2366943A1 (en) * 1976-04-30 1978-05-05 Renault REAR TRAIN STRUCTURE FOR MOTOR VEHICLES
FR2392839A1 (en) * 1977-05-31 1978-12-29 Renault REAR TRAIN STRUCTURE FOR MOTOR VEHICLES
FR2393690A1 (en) * 1977-06-10 1979-01-05 Citroen Sa SUSPENSION FOR WHEELS OF INDEPENDENT VEHICLES

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203057A1 (en) * 1992-02-04 1993-08-05 Bayerische Motoren Werke Ag Wheel suspension for motor vehicle - uses intermediate arm and strut, to guide damper and spring leg
WO1994006643A1 (en) * 1992-09-15 1994-03-31 Applied Power Inc. Vibration dampening device
WO1995028312A2 (en) * 1994-04-18 1995-10-26 Nai Neway, Inc. Trailing arm suspension with lever arm
WO1995028312A3 (en) * 1994-04-18 1996-02-15 Nai Neway Inc Trailing arm suspension with lever arm
US5588665A (en) * 1996-03-19 1996-12-31 Nai Neway, Inc. Trailing arm suspension with lever arm
WO2006063776A3 (en) * 2004-12-15 2007-01-18 Garage Italia S R L Quadcycle
DE102011004709A1 (en) * 2011-02-25 2012-08-30 Zf Friedrichshafen Ag Wheel suspension for vehicle, has damper element pivotally mounted on rocker, and coupling bar whose one end is mounted on rocker, where bearing point of coupling bar at rocker is spaced from bearing point of damper element on rocker

Also Published As

Publication number Publication date
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