FR2810927A1 - Rear wheel suspension for motor vehicle has leaf spring extending around inner radius of wheel - Google Patents
Rear wheel suspension for motor vehicle has leaf spring extending around inner radius of wheel Download PDFInfo
- Publication number
- FR2810927A1 FR2810927A1 FR0008320A FR0008320A FR2810927A1 FR 2810927 A1 FR2810927 A1 FR 2810927A1 FR 0008320 A FR0008320 A FR 0008320A FR 0008320 A FR0008320 A FR 0008320A FR 2810927 A1 FR2810927 A1 FR 2810927A1
- Authority
- FR
- France
- Prior art keywords
- rear axle
- flexible blade
- axle according
- longitudinal
- bearings
- 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
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Classifications
-
- 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
- B60G3/16—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 itself being resilient, e.g. leaf spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/18—Resilient suspensions characterised by arrangement, location or kind of springs having torsion-bar springs only
- B60G11/183—Resilient suspensions characterised by arrangement, location or kind of springs having torsion-bar springs only arranged in a plane transverse to the longitudinal axis of the vehicle
-
- 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
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- 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
- B60G2200/13—Independent suspensions with longitudinal arms only
- B60G2200/132—Independent suspensions with longitudinal arms only with a single trailing arm
- B60G2200/1324—Independent suspensions with longitudinal arms only with a single trailing arm with a resilient trailing arm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/116—Leaf spring having a "C" form loaded only at its ends transversally to its central axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/13—Torsion spring
- B60G2202/134—Torsion spring comprising a transversal torsion bar and/or tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/13—Torsion spring
- B60G2202/136—Twist-beam type arrangement
-
- 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
- B60G2204/122—Mounting of torsion springs
-
- 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
- B60G2204/1434—Mounting of suspension arms on the vehicle body or chassis in twist-beam axles arrangement
-
- 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
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- 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
- B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
-
- 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
- B60G2206/20—Constructional features of semi-rigid axles, e.g. twist beam type axles
-
- 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
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/427—Stabiliser bars or tubes
-
- 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
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- 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
- B60G2206/70—Materials used in suspensions
- B60G2206/72—Steel
- B60G2206/724—Wires, bars or the like
Abstract
Description
La présente invention concerne un train arrière deThe present invention relates to a rear axle of
suspension pour véhicule automobile. suspension for motor vehicle.
Les diverses solutions techniques connues qui ont été mises au point pour répondre aux exigences croissantes de confort et de tenue de route des trains arrière comprennent notamment les trains arrière à lames de flexion, les trains arrière à barres de torsion longitudinales et les trains arrière à ressorts hélicoidaux. Ces différentes solutions techniques ont ainsi permis d'améliorer considérablement les performances des trains arrière de façon à satisfaire la plupart des exigences des utilisateurs tant du point de vue confort The various known technical solutions which have been developed to meet the increasing requirements for comfort and handling of the rear axles include in particular the rear axles with bending blades, the rear axles with longitudinal torsion bars and the rear axles with springs helical. These various technical solutions have thus made it possible to considerably improve the performance of the rear axles so as to meet most of the requirements of users both from the comfort point of view
que du point de vue de tenue de route du véhicule. than from the point of view of road handling of the vehicle.
Toutefois, les utilisateurs demandent maintenant aux véhicules automobiles d'être plus fonctionnels et de procurer un espace habitable plus important, ce qui implique que la partie dite technique des véhicules prenne le moins de place possible tout en conservant le However, users are now asking motor vehicles to be more functional and to provide more habitable space, which implies that the so-called technical part of the vehicles take up the least space possible while retaining the
même niveau de performance.same level of performance.
Le but de la présente invention est de limiter l'encombrement du train arrière d'un véhicule automobile tout en offrant des performances analogues aux trains The object of the present invention is to limit the size of the rear axle of a motor vehicle while offering performance similar to trains
arrière connus jusqu'à maintenant. rear known until now.
A cet effet, l'invention propose un train arrière de suspension pour véhicule automobile comprenant deux bras longitudinaux pouvant osciller ou pivoter sur la caisse du véhicule dans des paliers et portant des fusées sur lesquelles sont fixées les roues arrière, et deux éléments de suspension reliant respectivement les deux bras longitudinaux à la caisse du véhicule, et qui est caractérisé en ce que chaque élément de suspension comprend une partie en forme de lame flexible cintrée située dans un plan longitudinal sensiblement vertical dans le passage de roue et dont la branche inférieure To this end, the invention provides a rear suspension train for a motor vehicle comprising two longitudinal arms which can oscillate or pivot on the body of the vehicle in bearings and carrying rockets on which the rear wheels are fixed, and two suspension elements connecting respectively the two longitudinal arms at the body of the vehicle, and which is characterized in that each suspension element comprises a part in the form of a curved flexible blade situated in a substantially vertical longitudinal plane in the wheel arch and whose lower branch
prolonge le bras longitudinal correspondant. extends the corresponding longitudinal arm.
De préférence, la partie en forme de lame flexible cintrée de chaque élément de suspension est logée dans l'espace formé par la jante de roue arrière correspondante adjacent à celui contenant les organes de freinage. L'extrémité de la branche supérieure de la partie en forme de lame flexible est montée pivotante sur la Preferably, the curved flexible blade-shaped part of each suspension element is housed in the space formed by the corresponding rear wheel rim adjacent to that containing the braking members. The end of the upper branch of the flexible blade-shaped part is pivotally mounted on the
caisse du véhicule dans un palier transversal. vehicle body in a transverse bearing.
Chaque bras longitudinal et chaque extrémité de la branche supérieure de la partie en forme de lame flexible comprend un axe cylindrique transversal de pivotement Each longitudinal arm and each end of the upper branch of the flexible blade-shaped part comprises a transverse cylindrical pivot axis
logé dans le palier de support correspondant. housed in the corresponding support bearing.
Les deux paliers de pivotement du bras longitudinal et de la partie en forme de lame flexible sont réalisés dans une même pièce de support fixée à la caisse du véhicule approximativement parallèlement à l'axe longitudinal du véhicule et sont écartés l'un de l'autre The two pivot bearings of the longitudinal arm and of the flexible blade-shaped part are produced in the same support piece fixed to the vehicle body approximately parallel to the longitudinal axis of the vehicle and are spaced from one another.
d'une distance définissant la raideur de la suspension. a distance defining the stiffness of the suspension.
Les axes de pivotement des bras longitudinaux traversent leurs paliers de support respectifs et sont The pivot axes of the longitudinal arms pass through their respective support bearings and are
reliés l'un à l'autre par une barre transversale anti- connected to each other by an anti-cross bar
roulis. La partie en forme de lame flexible de chaque élément de suspension présente en section transversale roll. The flexible blade-shaped part of each suspension element has a cross section
une forme rectangulaire aplatie.a flattened rectangular shape.
Avantageusement, chaque pièce de support des deux paliers comprend un moyen de réglage commandé de la distance entre les deux paliers, afin de régler la Advantageously, each support piece of the two bearings comprises a means for adjusting the distance between the two bearings in order to adjust the
raideur de la suspension à une valeur souhaitée. stiffness of the suspension to a desired value.
Chaque fusée de roue est fixée par soudage dans la zone de raccordement entre le bras longitudinal et la branche inférieure de la partie en forme de lame flexible. Les extrémités de la branche supérieure de chaque partie en forme de lame flexible et de chaque barre longitudinale sont montées dans leurs paliers respectifs par l'intermédiaire de manchons élastiques à base de caoutchouc autorisant de petits déplacements latéraux de Each wheel spindle is fixed by welding in the connection zone between the longitudinal arm and the lower branch of the flexible blade-shaped part. The ends of the upper arm of each part in the form of a flexible blade and of each longitudinal bar are mounted in their respective bearings by means of elastic rubber-based sleeves allowing small lateral displacements of
chaque essieu.each axle.
Chaque partie en forme de lame flexible est métallique ou en un matériau composite et chaque bras longitudinal est un corps cylindrique métallique creux ou plein. La branche inférieure de chaque partie en forme de lame flexible est raccordée au bras longitudinal correspondant par une partie coudée sensiblement à angle Each flexible blade-shaped part is metallic or made of a composite material and each longitudinal arm is a hollow or solid metallic cylindrical body. The lower branch of each flexible blade-shaped part is connected to the corresponding longitudinal arm by a bent part substantially at an angle.
droit.law.
Chaque partie en forme de lame flexible présente approximativement la forme d'un C. L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci Each flexible blade-shaped part has approximately the shape of a C. The invention will be better understood, and other aims, characteristics, details and advantages thereof
apparaîtront plus clairement au cours de la description will appear more clearly during the description
explicative qui va suivre faite en référence aux dessins annexés donnés uniquement à titre d'exemple, illustrant un mode de réalisation de l'invention, et dans lesquels: - La figure 1 est une vue en perspective du train arrière de suspension pour véhicule automobile conforme à l'invention; - La figure 2 est une vue agrandie de côté suivant la flèche II de la figure 1; - La figure 3 est une vue en perspective d'un élément de suspension de l'invention en partie logé dans la jante d'une roue arrière représentée partiellement; - La figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 3; - La figure 5 est une vue en perspective agrandie de côté suivant la flèche V de la figure 1; - La figure 6 est une vue partielle agrandie suivant la flèche VI de la figure 1; - La figure 7 est une vue en perspective d'une pièce de support de deux paliers pour un élément de suspension et un bras longitudinal du train arrière de l'invention; et - La figure 8 est une vue en coupe suivant la ligne Explanatory which will follow made with reference to the accompanying drawings given solely by way of example, illustrating an embodiment of the invention, and in which: - Figure 1 is a perspective view of the rear suspension train for a conforming motor vehicle to the invention; - Figure 2 is an enlarged side view along arrow II of Figure 1; - Figure 3 is a perspective view of a suspension element of the invention partially housed in the rim of a rear wheel shown partially; - Figure 4 is a sectional view along line IV-IV of Figure 3; - Figure 5 is an enlarged perspective view from the side along the arrow V in Figure 1; - Figure 6 is an enlarged partial view along arrow VI of Figure 1; - Figure 7 is a perspective view of a support piece of two bearings for a suspension element and a longitudinal arm of the rear axle of the invention; and - Figure 8 is a sectional view along the line
VIII-VIII de la figure 7.VIII-VIII of figure 7.
En se reportant aux figures, le train arrière de suspension pour véhicule automobile comprend deux bras longitudinaux 1 pouvant osciller ou pivoter sur la caisse (non représentée) du véhicule dans des paliers 2 comme on Referring to the figures, the rear suspension train for a motor vehicle comprises two longitudinal arms 1 which can oscillate or pivot on the body (not shown) of the vehicle in bearings 2 as is
le verra ultérieurement.will see it later.
Chaque bras longitudinal porte une fusée 3 ayant un axe 4 de support de roue arrière R et une plaque 5 de fixation des organes de freinage 6 qui, comme représenté, sont du type à tambour de frein, étant bien entendu Each longitudinal arm carries a spindle 3 having an axis 4 of rear wheel support R and a plate 5 for fixing the braking members 6 which, as shown, are of the brake drum type, being of course
qu'ils peuvent être constitués par un disque de frein. that they may consist of a brake disc.
La suspension comprend deux éléments de suspension 7 reliant respectivement les deux bras longitudinaux 1 à The suspension comprises two suspension elements 7 respectively connecting the two longitudinal arms 1 to
la caisse du véhicule.the vehicle body.
Selon l'invention, chaque élément de suspension 7 comprend une partie 8 en forme de lame flexible cintrée approximativement en C et située dans un plan longitudinal sensiblement vertical dans le passage de roue, de préférence dans l'espace formé par la jante de roue arrière correspondante R et adjacent à l'espace According to the invention, each suspension element 7 comprises a part 8 in the form of a flexible blade curved approximately at C and situated in a substantially vertical longitudinal plane in the wheel arch, preferably in the space formed by the rear wheel rim corresponding R and adjacent to the space
contenant les organes de freinage 6. containing the braking components 6.
La partie en forme de lame 8 de chaque élément de suspension 7 présente en section transversale une forme aplatie sensiblement rectangulaire et a sa branche inférieure 8a, qui se termine par une partie cylindrique métallique, creuse ou pleine, raccordée à l'extrémité arrière du bras longitudinal 1 par l'intermédiaire d'une partie coudée sensiblement à angle droit la de façon que le bras longitudinal 1 soit disposé parallèlement et à proximité du flanc intérieur du pneumatique de la roue R. La plaque de fixation 5 est fixée à la zone de jonction entre l'extrémité 8a de la branche inférieure de la lame flexible 8 et la partie coudée de raccordement la par l'intermédiaire d'une première console de support Sa fixée par soudage perpendiculairement et verticalement à la face de la plaque 5 opposée à l'axe de roue 4 et d'une seconde console de support 5b fixée perpendiculairement et horizontalement à cette même face également par soudage. L'extrémité de la console 5a est soudée à la fois à l'extrémité de la partie coudée de liaison la et l'extrémité 8a de la branche inférieure de la lame flexible 8, extrémités qui s'étendent perpendiculairement à la console 5a, tandis que la console 5b est fixée également par soudage le long de l'extrémité droite de la partie coudée la et de l'extrémité 8a de la branche The blade-shaped part 8 of each suspension element 7 has, in cross section, a flattened shape that is substantially rectangular and has its lower branch 8a, which ends in a metallic cylindrical part, hollow or solid, connected to the rear end of the arm longitudinal 1 by means of a bent portion substantially at right angles to it so that the longitudinal arm 1 is disposed parallel and close to the inner side of the tire of the wheel R. The fixing plate 5 is fixed to the area of junction between the end 8a of the lower branch of the flexible blade 8 and the angled connection part 1a by means of a first support console Sa fixed by welding perpendicular and vertically to the face of the plate 5 opposite to the wheel axle 4 and a second support console 5b fixed perpendicularly and horizontally to this same face also by welding. The end of the console 5a is welded to both the end of the bent connecting part 1a and the end 8a of the lower branch of the flexible blade 8, ends which extend perpendicular to the console 5a, while that the console 5b is also fixed by welding along the straight end of the bent part la and the end 8a of the branch
inférieure de la lame flexible 8.bottom of flexible blade 8.
L'extrémité 8b de la branche supérieure de la lame flexible est cylindrique, de préférence pleine, recourbée à angle droit par rapport au plan vertical de la lame flexible 8 et est montée pivotante dans un palier The end 8b of the upper branch of the flexible blade is cylindrical, preferably full, curved at right angles to the vertical plane of the flexible blade 8 and is pivotally mounted in a bearing
transversal 9 solidaire de la caisse du véhicule. transverse 9 secured to the vehicle body.
Comme cela est représenté en figure 8, les extrémités 8b, lb respectivement de chaque lame flexible 8 et chaque bras longitudinal 1, qui fait office de bras tiré, sont montées pivotantes dans leurs paliers respectifs 9, 2 par l'intermédiaire de roulements à billes 10 et sont maintenues latéralement dans ces roulements par l'intermédiaire de moyens d'arrêt 11, par As shown in FIG. 8, the ends 8b, lb respectively of each flexible blade 8 and each longitudinal arm 1, which acts as a pulled arm, are pivotally mounted in their respective bearings 9, 2 by means of ball bearings 10 and are held laterally in these bearings by means of stop means 11, by
exemple du type circlips.example of the circlip type.
Bien entendu, les roulements à billes 10 peuvent être remplacés par des roulements à aiguilles ou des bagues anti-friction en bronze. Selon une autre variante de réalisation, les liaisons au niveau des paliers 2, 9 peuvent être réalisées par des manchons élastiques à base de caoutchouc déformable de façon qu'en plus de leurs déplacements verticaux, les axes de roue 4 puissent avoir Of course, the ball bearings 10 can be replaced by needle bearings or anti-friction bronze rings. According to another alternative embodiment, the connections at the bearings 2, 9 can be produced by elastic sleeves based on deformable rubber so that in addition to their vertical movements, the wheel axles 4 can have
de légers déplacements latéraux.slight lateral displacements.
Chaque élément de suspension 7 permet, par sa partie en forme de lame cintrée 8, une flexibilité verticale et est rigide longitudinalement avec possibilité d'un léger déplacement latéral ou transversal dans le cas o les paliers de support 2, 9 comprennent des manchons élastiques. La courbure de la partie en forme de lame flexible 8 est optimisée de manière à assurer des débattements verticaux de chaque roue comme un ressort de suspension, sans dépasser la limite élastique du matériau de la lame, qui peut être métallique ou en un matériau composite. De préférence, les deux paliers 2, 9 de pivotement de chaque élément de suspension 7 et chaque bras longitudinal 1 font partie d'une même pièce de support 12 mieux visible en figure 7 qui s'étend approximativement en direction longitudinale du véhicule et qui comprend un bras 12a de liaison des deux paliers 2, 9 et deux bras extrêmes opposés 12b solidaires respectivement des deux paliers 2, 9 et comportant à chacune de leurs extrémités libres un manchon vertical 12c de fixation de la pièce de support 12 à la caisse du véhicule par l'intermédiaire de Each suspension element 7 allows, by its part in the form of a curved blade 8, vertical flexibility and is rigid longitudinally with the possibility of a slight lateral or transverse movement in the case where the support bearings 2, 9 comprise elastic sleeves. The curvature of the flexible blade-shaped part 8 is optimized so as to ensure vertical deflections of each wheel like a suspension spring, without exceeding the elastic limit of the material of the blade, which may be metallic or made of a composite material. Preferably, the two bearings 2, 9 for pivoting each suspension element 7 and each longitudinal arm 1 are part of the same support piece 12 better visible in FIG. 7 which extends approximately in the longitudinal direction of the vehicle and which comprises an arm 12a for connecting the two bearings 2, 9 and two opposite end arms 12b respectively integral with the two bearings 2, 9 and comprising at each of their free ends a vertical sleeve 12c for fixing the support piece 12 to the vehicle body through
vis de fixation (non représentées). fixing screws (not shown).
L'écartement d entre les axes des paliers 2, 9 de chaque pièce de support 12 conditionne la raideur de la suspension. En principe, l'écartement d est défini une fois pour toutes à la fabrication de la pièce de support 12 pour un type de véhicule particulier sur lequel la pièce doit être montée afin de définir la raideur de suspension, non modifiable, de ce véhicule. Selon une variante de réalisation, il est possible de prévoir des moyens de réglage (non représentés) de l'écartement d pour permettre au conducteur de régler, de façon commandée, la raideur de suspension de son véhicule. Par exemple, le bras de liaison 12b entre le palier 9 et le manchon 12c peut supporter un vérin pneumatique ou hydraulique, dont la tige comporterait à son extrémité le palier 9 de façon qu'en pilotant ce vérin, le conducteur puisse régler l'écartement d à une valeur souhaitée de raideur de la suspension. Ainsi, plus l'écartement d sera grand, plus importante sera la raideur et plus cet écartement sera faible, plus souple sera l'essieu. Il est donc possible, avec une même section transversale de la partie en forme flexible 8 de chaque élément de suspension 7 d'obtenir des raideurs de suspension différentes en réglant simplement l'écartement d entre les deux paliers 2, 9 de la pièce de support correspondante. La suspension peut également comporter de chaque côté du train arrière un amortisseur 13 ou jambe de suspension à vérin fixé à une extrémité au bras longitudinal correspondant 1 par l'intermédiaire d'un bras de liaison 14 fixé à la partie d'extrémité du bras 1 située au voisinage de son palier de pivotement 2 et à son extrémité opposée directement ou indirectement à la caisse du véhicule. Comme cela ressort mieux des figures 1 et 8, les extrémités transversales lb des bras longitudinaux 1 traversant leurs paliers respectifs 2 et sortant de ceux-ci sont reliées l'une à l'autre par une barre transversale anti-roulis 15 pleine ou creuse, métallique ou en un matériau composite. La liaison des deux extrémités de la barre 15 aux extrémités lb des bras longitudinaux 1 peut s'effectuer, comme représenté, à l'aide de brides de fixation 16 assemblées l'une à The spacing d between the axes of the bearings 2, 9 of each support piece 12 conditions the stiffness of the suspension. In principle, the spacing d is defined once and for all during the manufacture of the support part 12 for a particular type of vehicle on which the part must be mounted in order to define the stiffness of suspension, which cannot be modified, of this vehicle. According to an alternative embodiment, it is possible to provide means for adjusting (not shown) the spacing d to allow the driver to adjust, in a controlled manner, the suspension stiffness of his vehicle. For example, the link arm 12b between the bearing 9 and the sleeve 12c can support a pneumatic or hydraulic cylinder, the rod of which would include the bearing 9 at its end so that, by controlling this cylinder, the driver can adjust the spacing d to a desired value of stiffness of the suspension. Thus, the greater the spacing d, the greater the stiffness and the smaller this spacing, the more flexible will be the axle. It is therefore possible, with the same cross section of the flexible shaped part 8 of each suspension element 7 to obtain different suspension stiffnesses by simply adjusting the spacing d between the two bearings 2, 9 of the support part. corresponding. The suspension may also comprise on each side of the rear axle a shock absorber 13 or strut suspension strut fixed at one end to the corresponding longitudinal arm 1 by means of a link arm 14 fixed to the end part of the arm 1 located in the vicinity of its pivot bearing 2 and at its opposite end directly or indirectly to the vehicle body. As can be seen more clearly from FIGS. 1 and 8, the transverse ends 1b of the longitudinal arms 1 passing through and leaving their respective bearings 2 are connected to each other by a solid or hollow anti-roll crossbar 15, metallic or a composite material. The connection of the two ends of the bar 15 to the ends lb of the longitudinal arms 1 can be carried out, as shown, using fixing flanges 16 assembled one to
l'autre par des boulons de fixation (non représentés). the other by fixing bolts (not shown).
Chaque bras 1 peut être métallique en un corps creux ou plein. En intégrant pratiquement chaque élément de suspension 7 dans la jante correspondante d'une roue arrière d'un véhicule en contournant les organes de freinage, le volume habitable de ce véhicule est augmenté tout en assurant une meilleure tenue de route et un meilleur confort du train arrière par rapport aux trains Each arm 1 can be metallic in a hollow or solid body. By integrating practically each suspension element 7 into the corresponding rim of a rear wheel of a vehicle by bypassing the braking members, the habitable volume of this vehicle is increased while ensuring better road holding and better train comfort rear compared to trains
arrière connus jusqu'à maintenant. rear known until now.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0008320A FR2810927B1 (en) | 2000-06-28 | 2000-06-28 | REAR SUSPENSION TRAIN FOR MOTOR VEHICLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0008320A FR2810927B1 (en) | 2000-06-28 | 2000-06-28 | REAR SUSPENSION TRAIN FOR MOTOR VEHICLE |
Publications (2)
Publication Number | Publication Date |
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FR2810927A1 true FR2810927A1 (en) | 2002-01-04 |
FR2810927B1 FR2810927B1 (en) | 2002-12-06 |
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FR0008320A Expired - Fee Related FR2810927B1 (en) | 2000-06-28 | 2000-06-28 | REAR SUSPENSION TRAIN FOR MOTOR VEHICLE |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2843086A1 (en) * | 2002-08-05 | 2004-02-06 | Auto Chassis Int | Method for manufacturing automobile composite part comprises separately making different functional elements and wire connecting elements and rigidly connecting functional elements with wire elements |
WO2008099946A1 (en) | 2007-02-15 | 2008-08-21 | Toyota Jidosha Kabushiki Kaisha | Suspension apparatus for vehicle |
WO2010150604A1 (en) * | 2009-06-22 | 2010-12-29 | Toyota Jidosha Kabushiki Kaisha | Suspension apparatus for vehicle |
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FR2574028A1 (en) * | 1984-11-30 | 1986-06-06 | Peugeot | Motor vehicle suspension system |
GB2222987A (en) * | 1988-09-23 | 1990-03-28 | Moulton Development Ltd | Vehicle wheel suspension system |
FR2701431A1 (en) * | 1993-02-15 | 1994-08-19 | Bertin & Cie | Suspension for a vehicle wheel such as a trailer and set of such suspensions. |
EP0867318A1 (en) * | 1997-03-28 | 1998-09-30 | Automobiles Peugeot | Improvements in the rear axle of a motor vehicle having a torsionally deformable cross beam and vertical suspension springs |
EP1024037A1 (en) * | 1999-01-27 | 2000-08-02 | Peugeot Citroen Automobiles SA | Rear axle suspension for a motor vehicle |
-
2000
- 2000-06-28 FR FR0008320A patent/FR2810927B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2574028A1 (en) * | 1984-11-30 | 1986-06-06 | Peugeot | Motor vehicle suspension system |
GB2222987A (en) * | 1988-09-23 | 1990-03-28 | Moulton Development Ltd | Vehicle wheel suspension system |
FR2701431A1 (en) * | 1993-02-15 | 1994-08-19 | Bertin & Cie | Suspension for a vehicle wheel such as a trailer and set of such suspensions. |
EP0867318A1 (en) * | 1997-03-28 | 1998-09-30 | Automobiles Peugeot | Improvements in the rear axle of a motor vehicle having a torsionally deformable cross beam and vertical suspension springs |
EP1024037A1 (en) * | 1999-01-27 | 2000-08-02 | Peugeot Citroen Automobiles SA | Rear axle suspension for a motor vehicle |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2843086A1 (en) * | 2002-08-05 | 2004-02-06 | Auto Chassis Int | Method for manufacturing automobile composite part comprises separately making different functional elements and wire connecting elements and rigidly connecting functional elements with wire elements |
WO2008099946A1 (en) | 2007-02-15 | 2008-08-21 | Toyota Jidosha Kabushiki Kaisha | Suspension apparatus for vehicle |
JP2008195352A (en) * | 2007-02-15 | 2008-08-28 | Toyota Motor Corp | Vehicle suspension |
JP4702301B2 (en) * | 2007-02-15 | 2011-06-15 | トヨタ自動車株式会社 | Vehicle suspension system |
US7988165B2 (en) | 2007-02-15 | 2011-08-02 | Toyota Jidosha Kabushiki Kaisha | Suspension apparatus for vehicle |
CN101610923B (en) * | 2007-02-15 | 2011-12-07 | 丰田自动车株式会社 | Suspension apparatus for vehicle |
WO2010150604A1 (en) * | 2009-06-22 | 2010-12-29 | Toyota Jidosha Kabushiki Kaisha | Suspension apparatus for vehicle |
CN102123879A (en) * | 2009-06-22 | 2011-07-13 | 丰田自动车株式会社 | Suspension apparatus for vehicle |
Also Published As
Publication number | Publication date |
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FR2810927B1 (en) | 2002-12-06 |
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