FR2775935A1 - Motor vehicle rear axle - Google Patents
Motor vehicle rear axle Download PDFInfo
- Publication number
- FR2775935A1 FR2775935A1 FR9802995A FR9802995A FR2775935A1 FR 2775935 A1 FR2775935 A1 FR 2775935A1 FR 9802995 A FR9802995 A FR 9802995A FR 9802995 A FR9802995 A FR 9802995A FR 2775935 A1 FR2775935 A1 FR 2775935A1
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- FR
- France
- Prior art keywords
- suspension
- rear axle
- cylinder
- fixed
- axle according
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
- F16F9/096—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall comprising a hydropneumatic accumulator of the membrane type provided on the upper or the lower end of a damper or separately from or laterally on the damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
- B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
- B60G11/64—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having both torsion-bar springs and fluid springs
-
- 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
- B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
-
- 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
- B60G21/051—Trailing arm twist beam axles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/54—Arrangements for attachment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
- B60G2200/21—Trailing arms connected by a torsional beam, i.e. twist-beam axles
-
- 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
- B60G2202/1362—Twist-beam type arrangement including a second torsional element, e.g. second beam, stabiliser bar or tube
-
- 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
- B60G2204/128—Damper mount on 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
- B60G2204/12—Mounting of springs or dampers
- B60G2204/129—Damper mount on wheel suspension or knuckle
-
- 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
- B60G2204/43—Fittings, brackets or knuckles
-
- 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
- B60G2206/20—Constructional features of semi-rigid axles, e.g. twist beam type axles
- B60G2206/201—Constructional features of semi-rigid axles, e.g. twist beam type axles with detachable cross beam and/or torsion stabiliser bar/tube
-
- 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
- B60G2206/203—Constructional features of semi-rigid axles, e.g. twist beam type axles with outwardly bent trailing arms to increase the width of the support or wheelbase
-
- 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
- B60G2206/71—Light weight materials
- B60G2206/7102—Aluminium alloys
Abstract
Description
La présente invention concerne un train arrière deThe present invention relates to a rear axle of
véhicule automobile.motor vehicle.
On connaît depuis longtemps des trains arrière du type comprenant deux bras de suspension, chacun portant une roue à une extrémité et étant monté articulé à l'autre extrémité sur la caisse du véhicule afin que la roue puisse débattre, et une traverse déformable reliant l'un à l'autre les deux bras de suspension afin de les maintenir pour qu'ils débattent sensiblement dans un Rear trains of the type comprising two suspension arms, each carrying a wheel at one end and being articulated at the other end on the body of the vehicle so that the wheel can debate, and a deformable crosspiece connecting the one to the other the two suspension arms in order to maintain them so that they can be deflected substantially in a
plan vertical.vertical plane.
Cependant, les trains arrière de ce type sont munis de suspensions mécaniques à ressort dont les However, rear axles of this type are fitted with mechanical spring suspensions, the
performances sont limitées.performance is limited.
La présente invention a pour but de réaliser un train arrière améliorant les performances du train arrière connu tout en restant simple et donc peu coûteux. A cet effet, l'invention propose un train arrière de véhicule automobile comprenant deux bras de suspension, chacun portant une roue à une extrémité et étant monté articulé à l'autre extrémité sur la caisse du véhicule et une traverse déformable reliant l'un à l'autre les deux bras de suspension et qui est caractérisé en ce qu'il comprend en outre une suspension pneumatique ou hydropneumatique associée aux bras de suspension. La suspension comprend deux cylindres de suspension associés respectivement aux deux bras de suspension, chacun étant fixé entre un bras de suspension et la caisse du véhicule et ayant une sphère The object of the present invention is to produce a rear axle improving the performance of the known rear axle while remaining simple and therefore inexpensive. To this end, the invention provides a rear axle of a motor vehicle comprising two suspension arms, each carrying a wheel at one end and being articulated at the other end on the vehicle body and a deformable crosspiece connecting one to the other the two suspension arms and which is characterized in that it further comprises a pneumatic or hydropneumatic suspension associated with the suspension arms. The suspension comprises two suspension cylinders associated respectively with the two suspension arms, each being fixed between a suspension arm and the body of the vehicle and having a sphere
de suspension montée sur ledit cylindre de suspension. suspension mounted on said suspension cylinder.
De préférence, la sphère de suspension est montée à la partie inférieure du cylindre de suspension correspondant en étant inclinée, lorsque vue de dessus, par rapport à l'axe de rotation de la roue associée en Preferably, the suspension sphere is mounted at the lower part of the corresponding suspension cylinder while being inclined, when viewed from above, relative to the axis of rotation of the associated wheel in
s'étendant en arrière de la traverse déformable. extending behind the deformable cross member.
Selon une variante de réalisation, la sphère de suspension est montée directement sur le cylindre de suspension. Selon une autre variante de réalisation, la sphère de suspension est montée sur une pièce intermédiaire solidaire de l'extrémité inférieure du cylindre de suspension et fixée au bras de suspension par According to an alternative embodiment, the suspension sphere is mounted directly on the suspension cylinder. According to another alternative embodiment, the suspension sphere is mounted on an intermediate piece integral with the lower end of the suspension cylinder and fixed to the suspension arm by
l'intermédiaire d'une articulation élastique. through an elastic joint.
Avantageusement, la sphère de suspension est fixée Advantageously, the suspension sphere is fixed
par vissage au cylindre de suspension. by screwing to the suspension cylinder.
La sphère peut également être fixée rigidement sur le bras. Dans ce cas, elle est liée au cylindre de suspension soit par un tuyau flexible classique, soit The sphere can also be rigidly attached to the arm. In this case, it is linked to the suspension cylinder either by a conventional flexible pipe, or
par un tuyau multispire.by a multispire hose.
La partie supérieure de chaque cylindre de suspension comprend une liaison élastique fixée sur une paroi verticale du passage de roue associé au cylindre The upper part of each suspension cylinder includes an elastic connection fixed to a vertical wall of the wheel arch associated with the cylinder
de suspension.suspension.
De préférence, la liaison élastique est fixée à la paroi verticale par l'intermédiaire d'une pièce de fixation comprenant une plaque de fond fixée à la paroi verticale par des vis de fixation et une plaque supérieure horizontale percée d'un trou de passage de la liaison élastique du cylindre de suspension et dans Preferably, the elastic connection is fixed to the vertical wall by means of a fixing piece comprising a bottom plate fixed to the vertical wall by fixing screws and a horizontal upper plate pierced with a through hole of the elastic connection of the suspension cylinder and in
lequel elle est fixée.which it is fixed.
La pièce de fixation comprend en outre deux ailes latérales de renfort solidaires respectivement des deux The fixing piece further comprises two lateral reinforcing wings respectively secured to the two
bords en équerre des plaques de fond et supérieure. square edges of the bottom and top plates.
Le train arrière comprend de plus des conduites cheminant le long du bras de suspension de chaque cylindre de suspension pour permettre l'alimentation en The rear axle further comprises lines running along the suspension arm of each suspension cylinder to allow the supply of
fluide de ce cylindre.fluid from this cylinder.
L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci The invention will be better understood and other aims, characteristics, details and advantages thereof
apparaitront plus clairement au cours de la description will appear more clearly during the description
explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels: - La figure 1 est une vue de dessus de la partie gauche d'un train arrière de véhicule automobile conforme à l'invention; - La figure 2 est une vue en coupe dans le plan vertical contenant la ligne II-II de la figure 1; - La figure 3 est une vue de côté suivant la flèche III de la figure 1; et - La figure 4 est une vue en perspective agrandie d'une pièce de fixation du cylindre de suspension de la figure 2 à la caisse du véhicule. Le train arrière pour véhicule automobile tel que représenté aux figures comprend deux bras de suspension 1, seul le bras gauche de suspension étant représenté, Explanatory which will follow made with reference to the accompanying schematic drawings given solely by way of example illustrating an embodiment of the invention and in which: - Figure 1 is a top view of the left part of a rear axle of motor vehicle according to the invention; - Figure 2 is a sectional view in the vertical plane containing the line II-II of Figure 1; - Figure 3 is a side view along arrow III of Figure 1; and - Figure 4 is an enlarged perspective view of a fixing part of the suspension cylinder of Figure 2 to the vehicle body. The rear axle for a motor vehicle as shown in the figures comprises two suspension arms 1, only the left suspension arm being shown,
portant chacun à une extrémité une roue 2 du véhicule. each carrying at one end a wheel 2 of the vehicle.
Les deux bras 1 ont leurs extrémités opposées montées articulées en A sur la caisse du véhicule afin que la The two arms 1 have their opposite ends mounted articulated at A on the vehicle body so that the
roue puisse débattre lors des déplacements de celui-ci. wheel can debate when moving it.
Le train arrière comprend en outre une traverse déformable 3, partiellement représentée, reliant l'un à l'autre les deux bras de suspension afin de les maintenir pour qu'ils débattent sensiblement dans un plan vertical. La référence 4 représente partiellement une barre anti-dévers fixée à ses extrémités The rear axle further comprises a deformable cross member 3, partially shown, connecting the two suspension arms to one another in order to maintain them so that they can be deflected substantially in a vertical plane. Reference 4 partially represents an anti-roll bar fixed at its ends
respectivement aux deux bras de suspension 1. respectively to the two suspension arms 1.
Selon l'invention, le train arrière comprend également une suspension pneumatique ou hydropneumatique associée aux bras de suspension 1 de manière à améliorer According to the invention, the rear axle also comprises a pneumatic or hydropneumatic suspension associated with the suspension arms 1 so as to improve
les performances de ce train.the performance of this train.
Cette suspension est constituée de deux cylindres de suspension 5, dont un seul est représenté, associés respectivement aux deux bras de suspension 1. Ainsi, chaque cylindre de suspension 5 est fixé entre un bras de suspension 1 et la caisse C du véhicule de façon approximativement verticale et une sphère de suspension 6 est montée sur le cylindre à la partie inférieure de celui-ci en s'étendant en arrière de la traverse déformable 3 et étant inclinée, lorsque vue en plan sur la figure 1, par rapport à l'axe de rotation X-X' de la This suspension consists of two suspension cylinders 5, only one of which is shown, associated respectively with the two suspension arms 1. Thus, each suspension cylinder 5 is fixed between a suspension arm 1 and the body C of the vehicle approximately vertical and a suspension sphere 6 is mounted on the cylinder at the lower part thereof extending behind the deformable cross member 3 and being inclined, when viewed in plan in Figure 1, relative to the axis of rotation XX 'of the
roue 2. De plus, la sphère de suspension 5 se trouve en- wheel 2. In addition, the suspension sphere 5 is located
dessous du longeron de caisse du véhicule symbolisé en 7 sur la figure 3. De la sorte, la sphère de suspension 6 below the vehicle body spar symbolized at 7 in FIG. 3. In this way, the suspension sphere 6
peut suivre le débattement de la roue 2. can follow the travel of wheel 2.
La partie inférieure de chaque cylindre de suspension 5 est fixée au bras de suspension 1 par une pièce intermédiaire 8 solidaire du bras 1 par l'intermédiaire d'une articulation élastique 9 du genre silentbloc et logée dans un alésage 10 de la pièce The lower part of each suspension cylinder 5 is fixed to the suspension arm 1 by an intermediate part 8 secured to the arm 1 by means of an elastic articulation 9 of the silentbloc type and housed in a bore 10 of the part
intermédiaire 8.intermediate 8.
La partie supérieure de chaque cylindre de suspension 5 comprend une liaison élastique 11 solidaire de celle-ci et fixée sur une paroi verticale du passage de roue du véhicule. Plus précisément, la liaison élastique est fixée à la paroi verticale 12 par l'intermédiaire d'une pièce de fixation 13 clairement visible en figure 4 et comprenant une plaque de fond 14 fixée à la paroi verticale 12 par des vis de fixation 15 traversant des trous 16 de la plaque 14 et une plaque supérieure horizontale 17 percée d'un trou 18 de passage de la liaison élastique 11 du cylindre 5 et dans lequel est fixée cette liaison. La plaque supérieure 17 forme un angle droit avec la plaque de fond 14. La pièce de fixation 13 comprend de plus deux ailes latérales de renfort 19 solidaires respectivement des deux bords opposés en équerre des plaques de fond et supérieure 14, 17. La figure 2 montre que la liaison élastique 11 est constituée de deux corps en élastomère respectivement supérieur lla et inférieur llb fixés de part et d'autre de la plaque 17 par un écrou 20 vissé sur une partie filetée d'un axe 21 traversant les deux corps ila, llb sensiblement coaxialement au perçage 18 de la plaque 17 The upper part of each suspension cylinder 5 comprises an elastic connection 11 integral with the latter and fixed to a vertical wall of the wheel arch of the vehicle. More specifically, the elastic connection is fixed to the vertical wall 12 by means of a fixing piece 13 clearly visible in FIG. 4 and comprising a bottom plate 14 fixed to the vertical wall 12 by fixing screws 15 passing through holes 16 in the plate 14 and a horizontal upper plate 17 pierced with a hole 18 for passage of the elastic connection 11 of the cylinder 5 and in which this connection is fixed. The upper plate 17 forms a right angle with the bottom plate 14. The fixing piece 13 further comprises two lateral reinforcing wings 19 secured respectively to the two opposite edges at right angles to the bottom and upper plates 14, 17. FIG. 2 shows that the elastic connection 11 is made up of two elastomeric bodies respectively upper lla and lower llb fixed on either side of the plate 17 by a nut 20 screwed onto a threaded part of an axis 21 passing through the two bodies ila, llb substantially coaxially to the bore 18 of the plate 17
et solidaire d'une tige coulissante 22 du cylindre 5. and secured to a sliding rod 22 of the cylinder 5.
Une rondelle supérieure 23 est interposée entre l'écrou de fixation 20 et la face supérieure du corps l1a de la liaison élastique 11 et vient en appui sur l'extrémité supérieure de deux douilles superposées 24 traversant les deux corps lia, llb et le perçage 18 en entourant l'axe 21 et ainsi interposées entre la rondelle supérieure 23 et une rondelle inférieure 25 en appui sur la paroi d'extrémité supérieure du cylindre 5. Chaque corps lla, llb présente une forme approximativement tronconique dont la petite base est en appui sur la face correspondante de la plaque 17 par l'intermédiaire d'une An upper washer 23 is interposed between the fixing nut 20 and the upper face of the body 11a of the elastic connection 11 and comes to bear on the upper end of two superimposed sockets 24 passing through the two bodies 11a, 11b and the bore 18 surrounding the axis 21 and thus interposed between the upper washer 23 and a lower washer 25 resting on the upper end wall of the cylinder 5. Each body 11a, 11b has an approximately frustoconical shape whose small base is supported on the corresponding face of the plate 17 by means of a
cuvette métallique 26.metal bowl 26.
La sphère de suspension 6 est fixée à la pièce intermédiaire 8 de préférence par vissage sur une face 8a de la pièce 8 qui comprend en outre un orifice 8b d'entrée de fluide dans la chambre de pression du cylindre de suspension 5. L'orifice 8b est raccordé à une conduite d'alimentation en fluide (non représentée) cheminant le long du bras de suspension correspondant 1 The suspension sphere 6 is fixed to the intermediate part 8 preferably by screwing onto a face 8a of the part 8 which further comprises an orifice 8b for entering the fluid in the pressure chamber of the suspension cylinder 5. The orifice 8b is connected to a fluid supply line (not shown) running along the corresponding suspension arm 1
et se raccordant au réservoir d'alimentation. and connecting to the supply tank.
La figure 2 représente une réalisation particulière de chaque cylindre de suspension 5 qui comprend ainsi la tige 22, dans le cas présent en forme de cylindre creux ouvert à son extrémité inférieure et fermé à son extrémité supérieure par l'axe 21 emmanché à force dans celle-ci, montée à coulissement dans un tube cylindrique 27 par l'intermédiaire de deux paliers fixes de guidage axialement espacés 28, 29 solidaires du tube cylindrique 27 par un tube externe 30 enserrant et maintenant les deux paliers 28, 29. Le tube cylindrique 27 a son extrémité supérieure fixée sur une portée correspondante du palier supérieur 29. La tige 22 porte FIG. 2 represents a particular embodiment of each suspension cylinder 5 which thus comprises the rod 22, in the present case in the form of a hollow cylinder open at its lower end and closed at its upper end by the axis 21 force-fitted into that -this, slidably mounted in a cylindrical tube 27 by means of two axially spaced fixed guide bearings 28, 29 integral with the cylindrical tube 27 by an external tube 30 enclosing and holding the two bearings 28, 29. The cylindrical tube 27 at its upper end fixed on a corresponding bearing surface of the upper bearing 29. The rod 22 carries
à son extrémité inférieure une butée de détente 31 au- at its lower end a relaxation stop 31 au-
dessus de laquelle sont réalisés des trous 32 traversant la paroi latérale de la tige pour permettre un passage de fluide. Ainsi, le tube cylindrique 27 sert de chambre de pression du fluide qu'il contient de façon que les variations de pression du fluide s'exercent en partie supérieure de la tige 22 lors du débattement de la roue correspondante 2. Bien entendu, l'orifice d'entrée de fluide 8b communique avec cette chambre de pression. Le tube externe 30 a son extrémité inférieure fixée par soudage à la pièce intermédiaire 8 et la partie inférieure du tube cylindrique 27 est engagée de façon étanche dans un perçage correspondant de cette pièce. Le cylindre de suspension 5 comprend enfin un élément protecteur cylindrique 33 entourant coaxialement le tube above which holes 32 are made passing through the lateral wall of the rod to allow a passage of fluid. Thus, the cylindrical tube 27 serves as a pressure chamber for the fluid which it contains so that the variations in fluid pressure are exerted in the upper part of the rod 22 during the movement of the corresponding wheel 2. Of course, the fluid inlet port 8b communicates with this pressure chamber. The outer tube 30 has its lower end fixed by welding to the intermediate part 8 and the lower part of the cylindrical tube 27 is engaged in a sealed manner in a corresponding hole in this part. The suspension cylinder 5 finally comprises a cylindrical protective element 33 coaxially surrounding the tube
externe 30 et pouvant coulisser le long de celui-ci. external 30 and being able to slide along it.
L'élément protecteur 33 est fixé en partie supérieure du The protective element 33 is fixed in the upper part of the
cylindre 5.cylinder 5.
Le fait que chaque cylindre de suspension 5 soit fixé sur une paroi verticale du passage de roue correspondant et non à la partie supérieure de celui-ci permet un gain de place en hauteur et aucun élément ne dépasse à l'intérieur du véhicule, par exemple dans le coffre de celui- ci. De plus, le fait de fixer la sphère de suspension sur le cylindre de suspension correspondant permet également un gain de place et surtout évite de prévoir une conduite de liaison de cette sphère au cylindre. Il est à noter que chaque sphère de suspension, au lieu d'être fixée au cylindre correspondant par la pièce intermédiaire comme décrit The fact that each suspension cylinder 5 is fixed to a vertical wall of the corresponding wheel arch and not to the upper part thereof, saves space in height and no element protrudes inside the vehicle, for example in the trunk of it. In addition, the fact of fixing the suspension sphere on the corresponding suspension cylinder also saves space and above all avoids providing a pipe for connecting this sphere to the cylinder. It should be noted that each suspension sphere, instead of being fixed to the corresponding cylinder by the intermediate piece as described
ci-dessus, peut être directement fixée sur ce cylindre. above, can be directly attached to this cylinder.
La fixation par vissage de chaque sphère de suspension The fixing by screwing of each suspension sphere
permet un montage et un démontage extrêmement faciles. allows extremely easy assembly and disassembly.
En fait, chaque sphère de suspension prend pratiquement la même place que prendrait le ressort de suspension habituel d'un train arrière classique. Le train arrière de l'invention permet d'assurer efficacement un refroidissement dynamique des pièces de suspension le constituant lors du roulage du véhicule. Bien entendu, il est possible de remplacer le cylindre de suspension décrit en figure 2 par un cylindre de suspension classique à tige à piston coulissant dans un tube cylindrique. In fact, each suspension sphere takes almost the same place as the usual suspension spring of a conventional rear axle would take. The rear axle of the invention effectively ensures dynamic cooling of the suspension parts constituting it when the vehicle is running. Of course, it is possible to replace the suspension cylinder described in FIG. 2 by a conventional suspension cylinder with a piston rod sliding in a cylindrical tube.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9802995A FR2775935B1 (en) | 1998-03-11 | 1998-03-11 | REAR TRAIN OF A PNEUMATIC OR HYDROPNEUMATIC SUSPENSION MOTOR VEHICLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9802995A FR2775935B1 (en) | 1998-03-11 | 1998-03-11 | REAR TRAIN OF A PNEUMATIC OR HYDROPNEUMATIC SUSPENSION MOTOR VEHICLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2775935A1 true FR2775935A1 (en) | 1999-09-17 |
| FR2775935B1 FR2775935B1 (en) | 2000-09-08 |
Family
ID=9523927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9802995A Expired - Fee Related FR2775935B1 (en) | 1998-03-11 | 1998-03-11 | REAR TRAIN OF A PNEUMATIC OR HYDROPNEUMATIC SUSPENSION MOTOR VEHICLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2775935B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1032271C2 (en) * | 2006-08-03 | 2008-02-05 | Weweler Nv | Shock absorber mounting. |
| WO2014074053A1 (en) * | 2012-11-06 | 2014-05-15 | Scania Cv Ab | Mounting device for vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2424649A1 (en) * | 1974-05-21 | 1975-12-04 | Audi Nsu Auto Union Ag | Torsion absorbing rear suspension cross-member - is welded to axle supports with slanted seams |
| EP0161147A1 (en) * | 1984-04-19 | 1985-11-13 | Automobiles Peugeot | Damping strut for an oleopneumatic vehicle suspension |
| EP0229902A1 (en) * | 1985-12-21 | 1987-07-29 | Audi Ag | Pneumatic spring-damper unit |
| EP0352181A1 (en) * | 1988-07-22 | 1990-01-24 | Automobiles Peugeot | Supporting element for the hydropneumatic suspension of an automotive vehicle |
| GB2222987A (en) * | 1988-09-23 | 1990-03-28 | Moulton Development Ltd | Vehicle wheel suspension system |
| FR2672548A1 (en) * | 1991-02-13 | 1992-08-14 | Peugeot | Device for fixing one end of a telescopic shock absorber to the body of a motor vehicle |
| EP0535335A1 (en) * | 1991-09-30 | 1993-04-07 | Volkswagen Aktiengesellschaft | Independent wheel suspension for motor vehicles |
| FR2750925A1 (en) * | 1996-07-15 | 1998-01-16 | Peugeot | Horizontal suspension unit for vehicle wheels |
-
1998
- 1998-03-11 FR FR9802995A patent/FR2775935B1/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2424649A1 (en) * | 1974-05-21 | 1975-12-04 | Audi Nsu Auto Union Ag | Torsion absorbing rear suspension cross-member - is welded to axle supports with slanted seams |
| EP0161147A1 (en) * | 1984-04-19 | 1985-11-13 | Automobiles Peugeot | Damping strut for an oleopneumatic vehicle suspension |
| EP0229902A1 (en) * | 1985-12-21 | 1987-07-29 | Audi Ag | Pneumatic spring-damper unit |
| EP0352181A1 (en) * | 1988-07-22 | 1990-01-24 | Automobiles Peugeot | Supporting element for the hydropneumatic suspension of an automotive vehicle |
| GB2222987A (en) * | 1988-09-23 | 1990-03-28 | Moulton Development Ltd | Vehicle wheel suspension system |
| FR2672548A1 (en) * | 1991-02-13 | 1992-08-14 | Peugeot | Device for fixing one end of a telescopic shock absorber to the body of a motor vehicle |
| EP0535335A1 (en) * | 1991-09-30 | 1993-04-07 | Volkswagen Aktiengesellschaft | Independent wheel suspension for motor vehicles |
| FR2750925A1 (en) * | 1996-07-15 | 1998-01-16 | Peugeot | Horizontal suspension unit for vehicle wheels |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1032271C2 (en) * | 2006-08-03 | 2008-02-05 | Weweler Nv | Shock absorber mounting. |
| EP1884379A1 (en) * | 2006-08-03 | 2008-02-06 | Weweler Nederland N.V. | Shock absorber mounting |
| WO2014074053A1 (en) * | 2012-11-06 | 2014-05-15 | Scania Cv Ab | Mounting device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2775935B1 (en) | 2000-09-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20091130 |