FR2553720A1 - Suspension front-axle assembly for motor vehicles - Google Patents
Suspension front-axle assembly for motor vehicles Download PDFInfo
- Publication number
- FR2553720A1 FR2553720A1 FR8316678A FR8316678A FR2553720A1 FR 2553720 A1 FR2553720 A1 FR 2553720A1 FR 8316678 A FR8316678 A FR 8316678A FR 8316678 A FR8316678 A FR 8316678A FR 2553720 A1 FR2553720 A1 FR 2553720A1
- Authority
- FR
- France
- Prior art keywords
- arm
- stub axle
- free ends
- vehicle
- steering
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/04—Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
- B60G3/24—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid a rigid arm being formed by the live axle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
TRAIN AVANT DE SUSPENSION POUR VEHICULE AUTOMOBILE
La présente invention se rapporte à une disposition particulière de train avant pour véhicule automobile, plus particulièrement du type faux Mac Pherson à bras isocèle transversal.FRONT SUSPENSION TRAIN FOR MOTOR VEHICLE
The present invention relates to a particular arrangement of the front axle for a motor vehicle, more particularly of the false Mac Pherson type with transverse isosceles arm.
La préoccupation principale ayant présidé à la présente invention relève des considérations actuelles relatives à la simplification des opérations de montage d'un véhicule envisagéedèssa conception, ainsi que son allègement maximum favorisant une faible consommation d'énergie. The main concern which presided over the present invention relates to current considerations relating to the simplification of the assembly operations of a vehicle envisaged from its design, as well as its maximum lightening promoting low energy consumption.
Certaines améliorations techniques du train avant luimême découlent également de la présente invention et seront ultérieurement précisées.Certain technical improvements to the front axle itself also follow from the present invention and will be specified later.
On connaît déjà des trains avant du type faux Mac
Pherson à bras isocèle transversal selon lesquels ledit bras isocèle est fixé par son sommet à la base du porte-fusée . Le niveau du chassies du véhicule se trouvant sensiblement plus haut, il est alors nécessaire de rapporter au châssis un berceau inférieur permettant aux extrémités libres du bras isocèle transversal d'y prendre appui.We already know fake Mac type front axles
Pherson with transverse isosceles arm according to which said isosceles arm is fixed by its top to the base of the rocket carrier. The level of the vehicle tracks being substantially higher, it is then necessary to bring back to the chassis a lower cradle allowing the free ends of the transverse isosceles arm to bear there.
Une telle disposition présente un certain nombre d'inconvénients, en particulier l'excédent de poids de cette structure et l'opération supplémentaire destinée à la constituer ; de plus, la présence de ce berceau, de forme fermée, s'oppose au montage vertical par en dessous d'un sous-ensemble prémonté comportant le groupe motopropulseur, la suspension, la direction et la transmission. Such an arrangement has a number of drawbacks, in particular the excess weight of this structure and the additional operation intended to constitute it; in addition, the presence of this cradle, of closed form, is opposed to vertical mounting from below a pre-assembled sub-assembly comprising the powertrain, the suspension, the steering and the transmission.
La présente invention a pour but de pallier les inconvénients ci-dessus.The object of the present invention is to overcome the above drawbacks.
Elle sera maintenant décrite au regard des figures 1 à 4, données à titre d'exemple non limitatif, qui se rapportent respectivement - la figure 1, à une vue en perspective d'un demi
train avant antérieurement connu - la figure 2, à une vue analogue d'un train avant
conforme à l'invention; - la figure 3, à une vue en perspective d'un sous
ensemble utilisable selon l'invention ; - la figure 4, à un schéma montrant les avantages de
la géométrie d'un train selon l'invention.It will now be described with reference to Figures 1 to 4, given by way of nonlimiting example, which relate respectively - Figure 1, to a perspective view of a half
previously known front axle - Figure 2, a similar view of a front axle
according to the invention; - Figure 3, a perspective view of a sub
assembly usable according to the invention; - Figure 4, a diagram showing the advantages of
the geometry of a train according to the invention.
Le demi-train avant illustré à la figure 1, constituant l'état de la technique antérieure, est du type faux Mac Pherson, selon lequel un porte-fusée 1 maintient la roue 2 et se trouve solidarisé à la caisse par un bras inférieure triangulaire 3, un amortisseur vertical 4 et son ressort et la direction 5. Ces trois éléments permettent le guidage et le débattement de la roue 2.The front half-axle illustrated in FIG. 1, constituting the state of the prior art, is of the false Mac Pherson type, according to which a stub axle 1 holds the wheel 2 and is secured to the body by a triangular lower arm 3, a vertical damper 4 and its spring and the direction 5. These three elements allow the guide and the travel of the wheel 2.
On remarque que selon la disposition précédente, le bras inférieur 3 est fixé par son sommet à une rotule 9 localisée à la base du porte-fusée 1, et par ses extrémités libres 10 - ll en rotation autour d'un axe longitudinal, à un longeron inférieur 6 solidarisé au longeron principal 7,du châssis. Cette disposition est imposée par la position basse du bras 3. Note that according to the preceding arrangement, the lower arm 3 is fixed by its top to a ball joint 9 located at the base of the stub axle 1, and by its free ends 10 - ll rotating around a longitudinal axis, to a lower spar 6 secured to the main spar 7, of the chassis. This arrangement is imposed by the low position of the arm 3.
De plus, on constatera que l'emplacement de la trans
mission 8, traversant l'espace compris entre le ber
ceau 6 et le longeron 7 s'oppose au montage vertical d'un sous-ensemble qui la comporterait déjà solidari
sée au porte-fusée 1 ainsi qu'à l'ensemble motopropul
seur et qui comporterait également le bras 3, l'amor
tisseur 4 et la direction 5.In addition, we will see that the location of the trans
mission 8, crossing the space between the cradle
ceau 6 and the spar 7 opposes the vertical mounting of a sub-assembly which would already include it solidari
attached to the stub axle 1 as well as to the power train
sister and which would also include arm 3, amor
weaver 4 and direction 5.
La figure 2 montre comment la présente invention modifie la structure précédente de façon à pallier les inconvénients ci-dessus. Figure 2 shows how the present invention modifies the previous structure so as to overcome the above drawbacks.
On retrouve le porte-fusée 1 maintenant la roue 2 celui-ci est solidarisé à la caisse par le bras triangulaire 3 et l'amortisseur 4, et est en relation avec la direction 5 et la transmission 8.We find the stub axle 1 now the wheel 2 it is secured to the body by the triangular arm 3 and the shock absorber 4, and is in relation with the direction 5 and the transmission 8.
On remarquera cependant que la position du bras tri an- gulaire 3' diffère sensiblement de la représentation suivant la figure 1, en ce que son sommet 32' situé du côté du porte-fusée 1 lui est solidarisé au moyen d'une rotule coopérant avec sa partie supérieure comme cela est visible à la figure 3.It will however be noted that the position of the angular tri-arm 3 'differs appreciably from the representation according to FIG. 1, in that its apex 32' situated on the side of the rocket carrier 1 is secured to it by means of a ball joint cooperating with its upper part as seen in Figure 3.
Compte tenu de la surélévation du bras 3 qui en découle, il est alors possible de fixer directement ses extrémités libres 10' - ll' en rotation autour d'un axe longitudinal au longeron principal 7.Given the heightening of the arm 3 which results therefrom, it is then possible to directly fix its free ends 10 '- ll' in rotation about a longitudinal axis to the main spar 7.
L'absence de tout longeron inférieur analogue à 6 de la figure 1 présente tout d'abord l'avantage d'alléger sensiblement la structure porteuse du véhicule ; de plus, elle permet un assemblage plus économique des éléments précédents à ladite structure, comme on le voit à la figure 3. The absence of any lower spar similar to 6 of Figure 1 firstly has the advantage of significantly reducing the load-bearing structure of the vehicle; moreover, it allows a more economical assembly of the preceding elements to said structure, as seen in FIG. 3.
Selon l'invention, on prépare séparément et sur un présentoir un sous-ensemble constitué par le groupe motopropulseur 30, la boîte de vitesses 31, la transmission 8, la direction 5, les bras de suspension 3', les amortisseurs 4 et leurs ressorts de suspension ainsi que les porte-fusées 1. Ce sous-ensemble est ensuite assemblé automatiquement à la structure porteuse en le présentant verticalement par dessous, rien ne gênant alors le passage vertical de l'arbre de transmission, contrairement à ce qui se passerait dans le cas de la figure 1. On notera en outre que la garde au sol du véhicule selon la disposition de l'invention est plus importante, ce qui lui offre de nouvelles possibilités de roulage en terrain déformé.According to the invention, a subassembly consisting of the powertrain 30, the gearbox 31, the transmission 8, the steering 5, the suspension arms 3 ′, the shock absorbers 4 and their springs is prepared separately and on a display stand. suspension as well as the knuckles 1. This sub-assembly is then automatically assembled to the supporting structure by presenting it vertically from below, nothing then interfering with the vertical passage of the driveshaft, unlike what would happen in the case of FIG. 1. It will further be noted that the ground clearance of the vehicle according to the arrangement of the invention is greater, which offers it new possibilities of driving in deformed terrain.
La figure 4 schématise un autre avantage de l'invention découlant de la possibilité d'obtenir un déport négatif au sol plus important, avec les avantages techniques bien connus qui en découlent.Figure 4 shows schematically another advantage of the invention arising from the possibility of obtaining a greater negative offset to the ground, with the well-known technical advantages which result therefrom.
En effet, pour un diamètre de la roue 2 donné, on a représenté la position du bras 3 selon la figure 1 et du bras 3' selon la figure 2. Rappelons que l'axe de pivot est la ligne imaginaire qui passe par les points 40 - 40' de l'attache supérieure de l'amortisseur 4 à la caisse et par le point de fixation 32 - 32' des extrémités extérieures des bras de suspension 3 - 3'. Indeed, for a given diameter of the wheel 2, the position of the arm 3 according to FIG. 1 and of the arm 3 ′ according to FIG. 2 has been represented. Let us recall that the pivot axis is the imaginary line which passes through the points 40 - 40 'from the upper attachment of the shock absorber 4 to the body and by the fixing point 32 - 32' of the outer ends of the suspension arms 3 - 3 '.
Leur trace 41 - 41' sur le plan du sol 42 donne un déport négatif si elle est située à l'extérieur de la trace du plan de roue 43 sur le sol 62. Ledit déport est d'autant plus négatif que les points 41 - 41' sont plus à l'extérieur de la trace précédente. Their trace 41 - 41 ′ on the ground plane 42 gives a negative offset if it is located outside the trace of the wheel plane 43 on the ground 62. Said offset is all the more negative as the points 41 - 41 'are further outside the previous track.
On voit immédiatement à la figure 4 que le déport négatif est amplifié-dans le cas de l'utilisation d'un bras 3' par rapport à celle d'un bras 3, ce qui autorise un déport négatif même avec des roues de plus petit diamètre. We immediately see in Figure 4 that the negative offset is amplified-in the case of the use of an arm 3 'compared to that of an arm 3, which allows a negative offset even with smaller wheels diameter.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8316678A FR2553720B1 (en) | 1983-10-20 | 1983-10-20 | SUSPENSION FRONT AXLE FOR MOTOR VEHICLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8316678A FR2553720B1 (en) | 1983-10-20 | 1983-10-20 | SUSPENSION FRONT AXLE FOR MOTOR VEHICLE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2553720A1 true FR2553720A1 (en) | 1985-04-26 |
FR2553720B1 FR2553720B1 (en) | 1986-01-24 |
Family
ID=9293328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8316678A Expired FR2553720B1 (en) | 1983-10-20 | 1983-10-20 | SUSPENSION FRONT AXLE FOR MOTOR VEHICLE |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2553720B1 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB427907A (en) * | 1933-12-21 | 1935-05-02 | Georges Roesch | Improvements in or relating to resilient suspension systems for vehicles |
FR824637A (en) * | 1936-07-10 | 1938-02-14 | Laffly Ets | Trapezoidal rocket guides for automobile drive wheels and others |
US2228413A (en) * | 1939-01-27 | 1941-01-14 | Charles R Smalley | Wheel suspension unit |
FR1004209A (en) * | 1947-03-19 | 1952-03-27 | Improvements to motor vehicles | |
GB948835A (en) * | 1961-11-03 | 1964-02-05 | Willys Motors Inc | Independent wheel suspension |
FR2201196A1 (en) * | 1972-10-02 | 1974-04-26 | Chrysler Uk | |
DE2460178A1 (en) * | 1974-12-19 | 1976-06-24 | Volkswagenwerk Ag | Wheel suspension for steerable front wheels of motor vehicles - has transverse support element hinged to engine block |
FR2453746A1 (en) * | 1979-04-13 | 1980-11-07 | Gen Motors Corp | FRONT DRIVE VEHICLE PROVIDED WITH AN IMPROVED DEVICE FOR SUPPORTING THE ENGINE GROUP |
EP0025744A1 (en) * | 1979-09-13 | 1981-03-25 | AUTOMOBILES DANGEL Société dite: | Motor vehicle front suspension assembly |
US4392545A (en) * | 1980-04-12 | 1983-07-12 | Toyo Kogyo Co., Ltd. | Engine mounting structure for an automobile body |
-
1983
- 1983-10-20 FR FR8316678A patent/FR2553720B1/en not_active Expired
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB427907A (en) * | 1933-12-21 | 1935-05-02 | Georges Roesch | Improvements in or relating to resilient suspension systems for vehicles |
FR824637A (en) * | 1936-07-10 | 1938-02-14 | Laffly Ets | Trapezoidal rocket guides for automobile drive wheels and others |
US2228413A (en) * | 1939-01-27 | 1941-01-14 | Charles R Smalley | Wheel suspension unit |
FR1004209A (en) * | 1947-03-19 | 1952-03-27 | Improvements to motor vehicles | |
GB948835A (en) * | 1961-11-03 | 1964-02-05 | Willys Motors Inc | Independent wheel suspension |
FR2201196A1 (en) * | 1972-10-02 | 1974-04-26 | Chrysler Uk | |
DE2460178A1 (en) * | 1974-12-19 | 1976-06-24 | Volkswagenwerk Ag | Wheel suspension for steerable front wheels of motor vehicles - has transverse support element hinged to engine block |
FR2453746A1 (en) * | 1979-04-13 | 1980-11-07 | Gen Motors Corp | FRONT DRIVE VEHICLE PROVIDED WITH AN IMPROVED DEVICE FOR SUPPORTING THE ENGINE GROUP |
EP0025744A1 (en) * | 1979-09-13 | 1981-03-25 | AUTOMOBILES DANGEL Société dite: | Motor vehicle front suspension assembly |
US4392545A (en) * | 1980-04-12 | 1983-07-12 | Toyo Kogyo Co., Ltd. | Engine mounting structure for an automobile body |
Also Published As
Publication number | Publication date |
---|---|
FR2553720B1 (en) | 1986-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0093707B1 (en) | Suspension for a motor vehicle by means of an elastic blade | |
EP0097540B1 (en) | Trailing-arm-type suspension for a two-wheeled vehicle axle with an elastic pull back and anti-roll system | |
EP1049618B1 (en) | Suspended front fork for mountain bike and motorcycle | |
EP0414814B1 (en) | Wheel for a motor vehicle or towed vehicle and vehicule fitted with said wheel | |
FR2594401A1 (en) | MOTORCYCLE WITH FRONT WHEEL MOUNTED ON TWO SWING ARMS FRONT UPPER AND LOWER | |
EP0025744B1 (en) | Motor vehicle front suspension assembly | |
EP0133829B1 (en) | Independent rear wheel suspension | |
FR2726231A1 (en) | Axle motor with rotary suspension arm for electric or hybrid vehicle | |
FR2733463A1 (en) | Vehicle rear suspension system | |
FR2529838A1 (en) | Pneumatic suspension device for industrial vehicle | |
FR2726227A1 (en) | Independent suspension for rear axle of motor vehicle | |
FR2949384A1 (en) | VEHICLE COMPRISING A SHOCK ABSORBER ASSEMBLY | |
EP0489638A1 (en) | Suspension device particularly for steered wheel of automotive vehicle | |
FR2553720A1 (en) | Suspension front-axle assembly for motor vehicles | |
FR2698825A1 (en) | Motor vehicle suspension - has hub carriers flexibly mounted on leading and trailing links with torsional cross member | |
EP0486337B1 (en) | Improvements on front axles of automotive vehicles | |
FR2681291A1 (en) | Motor-vehicle improved front axle assembly | |
FR2753931A1 (en) | Vehicle wheel triangular suspension | |
EP0588694A1 (en) | Rear suspension for motor vehicle with independent wheels | |
FR2517606A1 (en) | Suspended rear engine subframe - supports rear axle and can rotate about the longitudinal and transverse vehicle axes | |
FR2674187A1 (en) | Device forming a suspension, particularly for the rear wheel of a motor vehicle | |
EP1074406B1 (en) | Improved device for a front wheel suspension of a motor vehicle | |
EP0048659B1 (en) | Hull suspension for a land vehicle | |
FR3096338A1 (en) | SHOCK ABSORBER FOR MOTOR VEHICLE OR MOTORCYCLE | |
FR2750925A1 (en) | Horizontal suspension unit for vehicle wheels |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse |