FR2601905A1 - Suspension with elastic leaves for a motor vehicle - Google Patents
Suspension with elastic leaves for a motor vehicle Download PDFInfo
- Publication number
- FR2601905A1 FR2601905A1 FR8610791A FR8610791A FR2601905A1 FR 2601905 A1 FR2601905 A1 FR 2601905A1 FR 8610791 A FR8610791 A FR 8610791A FR 8610791 A FR8610791 A FR 8610791A FR 2601905 A1 FR2601905 A1 FR 2601905A1
- Authority
- FR
- France
- Prior art keywords
- blade
- suspension
- cover
- suspension according
- stub axle
- 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
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 3
- 229920002994 synthetic fiber Polymers 0.000 claims abstract 2
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
- F16F1/3683—Attachments or mountings therefor
- F16F1/3686—End mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/08—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/023—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a leaf spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
-
- 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
-
- 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
- B60G2202/114—Leaf spring transversally arranged
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
SUSPENSION A LAMES ELASTIQUES, DU TYPE A JAMBE DE FORCE2 RELIANT LE PORTE-FUSEE3 A LA CAISSE. LES EFFORTS TRANSVERSAUX ET LA FONCTION RESSORT SONT ASSURES PAR UN MEME ORGANE, A SAVOIR UNE LAME20 EN MATERIAU SYNTHETIQUE RENFORCE DE FIBRES ORIENTEES, DISPOSEE TRANSVERSALEMENT ET N'OCCUPANT QU'UNE FRACTION DE LA DEMI-DISTANCE ENTRE LES ROUES DONT UNE EXTREMITE EST FIXEE A LA BASE DU PORTE-FUSEE3 ET L'AUTRE A LA CAISSE DU VEHICULE PAR L'INTERMEDIAIRE D'UN AXE5 QUI LUI EST SOLIDAIRE ET AUTOUR DUQUEL ELLE TOURILLONNE. APPLICATION AUX SUSPENSIONS.SUSPENSION WITH ELASTIC BLADES, OF THE LEG TYPE 2 CONNECTING THE ROCKER 3 TO THE CASE. THE TRANSVERSAL STRENGTHS AND THE SPRING FUNCTION ARE PROVIDED BY THE SAME BODY, NAMELY A BLADE20 IN SYNTHETIC MATERIAL REINFORCED WITH ORIENTED FIBERS, ARRANGED TRANSVERSALLY AND OCCUPYING ONLY A FRACTION OF THE HALF-DISTANCE BETWEEN THE WHEELS, ONE END OF WHICH IS FIXED THE BASE OF THE FUSEE3 CARRIER AND THE OTHER AT THE VEHICLE'S CASE THROUGH AN AXIS5 WHICH IS IN SOLIDARITY WITH IT AND AROUND WHICH IT TURNS. APPLICATION TO SUSPENSIONS.
Description
SUSPENSION A LAMES ELASTIQUES POUR VEHICULE AUTOMOBILE
La présente invention se rapport à une suspension à lames élastiques, pour train avant ou train arrière à roues indépendantes, d' un véhicule automobile.ELASTIC BLADE SUSPENSION FOR MOTOR VEHICLE
The present invention relates to a suspension with elastic blades, for front axle or rear axle with independent wheels, of a motor vehicle.
On utilise fréquemment des suspensions à roues indépendantes du type
Mac PHERSON, constituées d' un amortisseur relié, d'une part, au porte-fusée de roue et, d'autre part, à la caisse du véhicule, entouré d' un ressort hélicol-dal à sa partie supérieure, le porte-fusée étant solidarisé à la caisse par un bras oscillant transversal.Frequently suspensions with independent wheels of the type are used
Mac PHERSON, consisting of a shock absorber connected, on the one hand, to the wheel stub axle and, on the other hand, to the vehicle body, surrounded by a coil spring at its upper part, the rocket being secured to the body by a transverse swing arm.
Le volume pris par les ressorts hélicoldaux diminue d' autant 1' espace disponible entre les chapelles droite et gauche, qui pourrait avantageusement être occupé par des organes du compartiment moteur ou par le coffre du véhicule.The volume taken up by the helical springs decreases the space available between the right and left chapels all the more, which could advantageously be occupied by members of the engine compartment or by the trunk of the vehicle.
On a amélioré la disposition ci-dessus en remplaçant les ressorts hélicoldaux par un ressort à lame unique, transversale reliant les roues droite et gauche, ce qui autorise un gain de place. Toutefois, lorsque le ressort est combiné avec des bras transversaux droit et gauche, avec lesquels il coopère, ce ressort transversal et lesdits bras font double usage et additionnent leurs masses, leurs encombrements et leurs prix de revient.The above arrangement has been improved by replacing the helical springs with a single, transverse leaf spring connecting the right and left wheels, which saves space. However, when the spring is combined with right and left transverse arms, with which it cooperates, this transverse spring and said arms make dual use and add up their masses, their dimensions and their cost prices.
Lorsque la lame unique fait aussi office de bras transversaux, I' utilisation de ladite lame unique sur toute la largeur du véhicule constitue un obstacle pour le passage de certains organes et en particulier de la transmission des véhicules à quatre roues motrices. Cette disposition implique, en outre, une garde au sol plus importante, du fait de la flèche prise par la partie centrale de ladite lame lors des débattements importants de ses extrémités soumises au déplacement des roues. When the single blade also acts as a transverse arm, the use of said single blade over the entire width of the vehicle constitutes an obstacle for the passage of certain members and in particular of the transmission of vehicles with four-wheel drive. This arrangement implies, moreover, greater ground clearance, due to the deflection taken by the central part of said blade during significant deflections of its ends subjected to the movement of the wheels.
La présente invention a pour but de pallier les difficultés ci-dessus ; elle sera décrite à titre d' exemple non limitatif au regard des figures 1 à 6 ci-tointes, qui se rapportent respectivement - la figure 1, à une vue en perspective d'un train avant selon la
technique antérieure, - la figure 2, à une vue analogue d' un train avant selon 1' invention, - la figure 3, à une vue arrière de détail du train de 1' invention, - la figure 4, à une vue de dessus du train de l'invention, - la figure 5, à une vue en coupe transversale du train de l'invention
selon B-B, - la figure 6, à une vue en coupe transversale du train de 1' invention
selon C-C.The object of the present invention is to overcome the above difficulties; it will be described by way of nonlimiting example with regard to FIGS. 1 to 6 above, which relate respectively - FIG. 1, to a perspective view of a front axle according to the
prior art, - Figure 2, a similar view of a front axle according to the invention, - Figure 3, a rear detail view of the train of the invention, - Figure 4, a top view of the train of the invention, - Figure 5, a cross-sectional view of the train of the invention
according to BB, - Figure 6, a cross-sectional view of the train of one invention
according to CC.
En référence à la figure l, on voit un train avant gauche de structure classique et l'importance du volume occupé par le ressort hélicoldal 1 qui entoure la partie supérieure de 1' amortisseur 2, dont la partie inférieure est fixée au porte-fusée 3 ; ce dernier est relié à l' extrémité extérieure d'un bras 4 dont la partie opposée tourillonne autour d' un axe 5 solidaire de la caisse.With reference to FIG. 1, we see a left front axle of conventional structure and the size of the volume occupied by the helical spring 1 which surrounds the upper part of the damper 2, the lower part of which is fixed to the stub axle 3 ; the latter is connected to the outer end of an arm 4, the opposite part of which pivots around an axis 5 secured to the body.
Dans le train selon l'invention illustré à la figure 2, on retrouve une partie de la structure précédente, à savoir : I' amortisseur 2, le porte-fusée 3, mais on notera l' absence du ressort hélicoîdal l et du bras transversal 4 ; les fonctions de ces deux éléments sont assurées simultanément par une pièce unique représentée par une lame de ressort 20 fixée à la base du porte-fusée 3 et tourillonnant autour de l' axe 5 solidaire de la caisse.In the train according to the invention illustrated in Figure 2, there is a part of the previous structure, namely: I 'shock absorber 2, the stub axle 3, but note the absence of the coil spring l and the transverse arm 4; the functions of these two elements are performed simultaneously by a single piece represented by a leaf spring 20 fixed to the base of the stub axle 3 and swiveling around the axis 5 secured to the body.
Ce ressort 20 est réalisé en une matière composite fibres orientées résine synthétique du type époxy ; il est de préférence obtenu par moulage sous pression. This spring 20 is made of a composite material oriented synthetic resin fibers of the epoxy type; it is preferably obtained by pressure molding.
Il est important de noter que ladite lame 20 n' occupe qu' une fraction de la demi-largeur du véhicule, permettant de ce fait le passage de différents organes 21 tels que transmission 4 x 4, commande de boîte de vitesses, échappement, etc
Contrairement aux dispositifs de suspension à lame transversale unique, on n' a pas à prévoir de débattement de sa partie centrale, ce qui autorise une garde au sol moins importante ; en outre, les organes 21 étant logés à la place de la partie centrale de la lame selon le dispositif antérieur, on peut ainsi disposer le moteur du véhicule et son capot plus bas, entraînant des conséquences favorables au niveau du comportement routier et de 1' esthétique de la carrosserie.It is important to note that said blade 20 occupies only a fraction of the half-width of the vehicle, thereby allowing the passage of different members 21 such as 4 x 4 transmission, gearbox control, exhaust, etc.
Unlike single transverse blade suspension devices, there is no need to provide travel of its central part, which allows less ground clearance; in addition, the members 21 being housed in place of the central part of the blade according to the prior device, it is thus possible to have the vehicle engine and its hood lower, resulting in favorable consequences in terms of road behavior and 1 ' aesthetics of the body.
On remarquera également que l'espace entre les chapelles de suspension est agrandi du fait de l'absence des ressorts hélicoidaux 1, ainsi que celle de tout bras transversal 4 dont la fonction est assurée par la lame 20.It will also be noted that the space between the suspension chapels is enlarged due to the absence of helical springs 1, as well as that of any transverse arm 4 whose function is ensured by the blade 20.
Le détail de la disposition ci-dessus est bien visible à la figure 3, où on retrouve le porte-fusée 3, supportant 1' amortisseur 2 et 1' extrémité extérieure de la lame 20, dont 1' autre extrémité est fixée. à la caisse par 1' axe 5.The detail of the above arrangement is clearly visible in Figure 3, where we find the knuckle 3, supporting one damper 2 and one outer end of the blade 20, the other end of which is fixed. at the checkout by axis 5.
La partie intérieure du ressort 20 est prise dans un capot 30 fermé par une tôle inférieure 32 et solidarisé à la caisse 35 du véhicule par trois points 31. Le contact lame de ressort 20 - capot 30 se fait comme indiqué à la figure 5, selon la coupe B-B de la figure 4. On voit que la lame 20 est entourée à cet endroit, sur tout son pourtour, d' une feuille en élastomère 33 et se trouve enserrée entre la tôle inférieure 32 et un étranglement 34 du capot 30.The inner part of the spring 20 is taken in a cover 30 closed by a lower plate 32 and secured to the body 35 of the vehicle by three points 31. The contact between the spring leaf 20 and the cover 30 is as shown in FIG. 5, according to the section BB of FIG. 4. It can be seen that the blade 20 is surrounded at this location, over its entire periphery, with an elastomer sheet 33 and is sandwiched between the lower sheet 32 and a throttle 34 of the cover 30.
L'extrémité interne de la lame 20 forme une boucle 40 de préférence venue de moulage, tourillonnant autour de 1' axe 5 solidaire des côtés du capot 30 par l'intermédiaire d' un manchon en caoutchouc 41 - adhérisé par ses deux faces interne et externe, respectivement à 1' axe 5 et à la boucle 40. The internal end of the blade 20 forms a loop 40 preferably molded, swiveling around the axis 5 secured to the sides of the cover 30 by means of a rubber sleeve 41 - adhered by its two internal faces and external, respectively to the axis 5 and to the loop 40.
On remarquera que le train des figures 3 et 4 constitue un sous-ensemble que l'on peut préparer séparément permettant un montage autpmatisé.It will be noted that the train of FIGS. 3 and 4 constitutes a sub-assembly which can be prepared separately allowing an automated assembly.
D'autre part, lwassemblage de la lame 20 dans le capot 30 tel que décrit cidessus autorise une certaine souplesse, source de confort, dans le sens longitudinal de la roue ; ceci est obtenu grâce à une latitude de déplacement dans le sens de la flèche au niveau de 1' attache de la figure 5 (B-B) ; au contraire, la raideur transversale de la fixation au niveau de 1' axe 5 (figure 6) détermine la rigidité de la géométrie du train favorable à une bonne tenue de route du véhicule. On the other hand, the assembly of the blade 20 in the cover 30 as described above allows a certain flexibility, source of comfort, in the longitudinal direction of the wheel; this is obtained by virtue of a latitude of displacement in the direction of the arrow at the level of the fastener of FIG. 5 (B-B); on the contrary, the transverse stiffness of the binding at the level of the axis 5 (FIG. 6) determines the rigidity of the geometry of the train favorable to good road handling of the vehicle.
Par ailleurs, le débattement des roues se répercute par un mouvement de la lame 20 entre les axes B-B et C-C, pouvant être prises- en compte par un capteur et servant à divers pilotages de la suspension et, notamment, à celui de 1' amortisseur 2. Furthermore, the movement of the wheels is reflected by a movement of the blade 20 between the axes BB and CC, which can be taken into account by a sensor and used for various control of the suspension and, in particular, that of the shock absorber. 2.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8610791A FR2601905B1 (en) | 1986-07-25 | 1986-07-25 | ELASTIC BLADE SUSPENSION FOR MOTOR VEHICLE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8610791A FR2601905B1 (en) | 1986-07-25 | 1986-07-25 | ELASTIC BLADE SUSPENSION FOR MOTOR VEHICLE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2601905A1 true FR2601905A1 (en) | 1988-01-29 |
| FR2601905B1 FR2601905B1 (en) | 1990-03-02 |
Family
ID=9337728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8610791A Expired - Lifetime FR2601905B1 (en) | 1986-07-25 | 1986-07-25 | ELASTIC BLADE SUSPENSION FOR MOTOR VEHICLE. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2601905B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0507975A1 (en) * | 1991-04-05 | 1992-10-14 | Nhk Spring Co., Ltd. | Suspension system for a vehicle |
| US5267751A (en) * | 1991-04-05 | 1993-12-07 | Nhk Spring Co., Ltd. | Suspension system for a vehicle |
| US6012709A (en) * | 1997-08-06 | 2000-01-11 | Pacific Coast Composites | Hybrid leaf spring and suspension system for supporting an axle on a vehicle |
| US6461455B1 (en) | 2000-01-24 | 2002-10-08 | Pacific Coast Composites | Method of producing a hybrid leaf spring |
| FR2956713A1 (en) * | 2010-02-24 | 2011-08-26 | Hutchinson | ARTICULATED COMPOSITE SPRING BLADE FOR MOTOR VEHICLE FLOOR CONNECTION, METHOD FOR MANUFACTURING SAME, AND GROUND CONNECTION |
| CN102458887A (en) * | 2009-04-15 | 2012-05-16 | 标致·雪铁龙汽车公司 | Front end assembly for a motor vehicle comprising a suspension device with transverse blades |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3858902A (en) * | 1973-04-23 | 1975-01-07 | Univ Syracuse Res Corp | Variable-load suspension for light vehicles |
| US3912296A (en) * | 1973-12-03 | 1975-10-14 | Ford Motor Co | Shock absorber mounting |
| EP0058950A2 (en) * | 1981-02-20 | 1982-09-01 | Nissan Motor Co., Ltd. | Independent wheel suspension mechanism of automotive vehicle |
| FR2543073A1 (en) * | 1983-03-22 | 1984-09-28 | Renault | REAR SUSPENSION TRAIN FOR MOTOR VEHICLE |
| WO1986000854A1 (en) * | 1984-07-25 | 1986-02-13 | Gkn Technology Limited | Vehicle suspension |
-
1986
- 1986-07-25 FR FR8610791A patent/FR2601905B1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3858902A (en) * | 1973-04-23 | 1975-01-07 | Univ Syracuse Res Corp | Variable-load suspension for light vehicles |
| US3912296A (en) * | 1973-12-03 | 1975-10-14 | Ford Motor Co | Shock absorber mounting |
| EP0058950A2 (en) * | 1981-02-20 | 1982-09-01 | Nissan Motor Co., Ltd. | Independent wheel suspension mechanism of automotive vehicle |
| FR2543073A1 (en) * | 1983-03-22 | 1984-09-28 | Renault | REAR SUSPENSION TRAIN FOR MOTOR VEHICLE |
| WO1986000854A1 (en) * | 1984-07-25 | 1986-02-13 | Gkn Technology Limited | Vehicle suspension |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0507975A1 (en) * | 1991-04-05 | 1992-10-14 | Nhk Spring Co., Ltd. | Suspension system for a vehicle |
| US5267751A (en) * | 1991-04-05 | 1993-12-07 | Nhk Spring Co., Ltd. | Suspension system for a vehicle |
| US6012709A (en) * | 1997-08-06 | 2000-01-11 | Pacific Coast Composites | Hybrid leaf spring and suspension system for supporting an axle on a vehicle |
| US6461455B1 (en) | 2000-01-24 | 2002-10-08 | Pacific Coast Composites | Method of producing a hybrid leaf spring |
| CN102458887A (en) * | 2009-04-15 | 2012-05-16 | 标致·雪铁龙汽车公司 | Front end assembly for a motor vehicle comprising a suspension device with transverse blades |
| CN102458887B (en) * | 2009-04-15 | 2014-04-30 | 标致·雪铁龙汽车公司 | Front axle for a motor vehicle and the motor vehicle |
| FR2956713A1 (en) * | 2010-02-24 | 2011-08-26 | Hutchinson | ARTICULATED COMPOSITE SPRING BLADE FOR MOTOR VEHICLE FLOOR CONNECTION, METHOD FOR MANUFACTURING SAME, AND GROUND CONNECTION |
| WO2011104672A1 (en) * | 2010-02-24 | 2011-09-01 | Hutchinson | Articulated composite spring leaf for the ground contact system of a motor vehicle, method of manufacture thereof and ground contact system created |
| CN102844583A (en) * | 2010-02-24 | 2012-12-26 | 哈特奇桑公司 | Articulated composite spring leaf for the ground contact system of a motor vehicle, method of manufacture thereof and ground contact system created |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2601905B1 (en) | 1990-03-02 |
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