EP1542897A1 - Motor vehicle - Google Patents

Motor vehicle

Info

Publication number
EP1542897A1
EP1542897A1 EP03772374A EP03772374A EP1542897A1 EP 1542897 A1 EP1542897 A1 EP 1542897A1 EP 03772374 A EP03772374 A EP 03772374A EP 03772374 A EP03772374 A EP 03772374A EP 1542897 A1 EP1542897 A1 EP 1542897A1
Authority
EP
European Patent Office
Prior art keywords
fixed
vehicle
chassis
bolting
tank
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.)
Withdrawn
Application number
EP03772374A
Other languages
German (de)
French (fr)
Inventor
Philippe Colancon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aixam Mega SAS
Original Assignee
Aixam Mega SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aixam Mega SAS filed Critical Aixam Mega SAS
Publication of EP1542897A1 publication Critical patent/EP1542897A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/08—Understructures, i.e. chassis frame on which a vehicle body may be mounted built up with interlaced cross members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
    • B62D23/005—Combined superstructure and frame, i.e. monocoque constructions with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/06—Connections between superstructure or understructure sub-units readily releasable
    • B62D27/065—Connections between superstructure or understructure sub-units readily releasable using screwthread

Definitions

  • the present invention relates to a motor vehicle.
  • the invention applies more particularly to light motor vehicles, whose unladen weight is of the order of 350 Kg, which are equipped with a low power engine, and whose use does not necessarily require a license to drive.
  • the invention relates more particularly to a light utility vehicle, comprising a platform, or in the form of a van.
  • a traditional vehicle includes a chassis made in different ways.
  • a first way to obtain a chassis is to produce it by assembling elements by mechanical welding.
  • Another solution is to produce a tubular frame.
  • the object of the invention is to produce a motor vehicle, in particular a light vehicle, obtained from simple elements and capable of a certain modularity.
  • Another object of the invention in the case where the vehicle considered is a small utility vehicle, is to provide the latter with a structure ensuring good road handling, knowing that the problem to be resolved is that of good distribution.
  • weights particularly important on a light vehicle, and knowing that in a utility vehicle, the load made up of most of the load made up by the engine and the weight of the passengers, is located on the front of the vehicle.
  • the vehicle according to the invention comprising two tubular spars made of spun aluminum, cast aluminum sleepers is characterized in that the sleepers are fixed by bolting to the side members, and cast alloy pieces aluminum, fixed by bolting on the longitudinal members, the mechanical elements being fixed by bolting on the longitudinal members, the crosspieces and the casting parts constituting the chassis.
  • tubular beams made of spun aluminum are cut to the desired length for the vehicle, which allows, from the same aluminum tubes to make several types of vehicles with different wheelbases, provided, of course, that the resistance of the profiles in aluminum forming the side members is adapted to these different vehicles. It is also possible, with such a structure, to produce a telescopic frame, an intermediate profile being inserted between two sections of longitudinal profiles.
  • the sleepers connecting the tubular beams are made of aluminum alloy and obtained by foundry. These crosspieces are made with holes which allow them to be fixed by screwing onto the side members, as well as the fixing of mechanical members. Under these conditions, the resumption of machining on these parts is reduced.
  • the vehicle chassis also includes cast aluminum alloy parts attached to the side members. These parts can be used in particular for mounting the rear wheels, suspension elements for the rear wheels, and the steering assembly at the front of the chassis.
  • chassis is made by bolting, without resorting to welding operations.
  • the tubular beams have through holes for fixing the sleepers and other castings, each pair of coaxial holes formed in two parallel walls of a beam being associated with a shouldered tubular spacer for passage a bolt, the two shouldered ends of the spacer being in abutment against the two walls at the level of the two holes thereof and the various spacers being put in place before mounting the crosspieces and other castings, by deformation of the constitutive profile of the spar, corresponding to a spacing of the two vertical walls thereof.
  • the aluminum tubular beams have holes for fixing the sleepers and other castings necessary for the construction of the vehicle.
  • the vehicle chassis is fixed by gluing and / or bolting a tray on which is fixed a roll bar supporting the body panels.
  • the tank is made of synthetic material, of polyester resin reinforced with reinforcing fibers, obtained by low pressure molding, this tank being fixed to the frame by gluing and / or by bolting.
  • the plastic container extends at least in the front part of the vehicle.
  • the bin In the case of a flatbed utility vehicle, the bin extends in the front part of the vehicle and the roll bar is arranged between the front and the rear of the bin, the rear part of the vehicle being equipped with a plate fixed to the chassis.
  • the bin can extend over the entire length of the vehicle, and the roll bar also covers the entire length of the vehicle.
  • the roll bar is fixed to the tank by bolting.
  • the frame which receives the fixed part of the hinge of each door is fixed on the one hand on the tray and on the other hand, halfway up, on the hoop.
  • the engine is fixed to the chassis and arranged under the tank, under the location of the vehicle's front seats, while the front wheels are arranged at the front of the chassis.
  • This solution makes it possible to bring a heavy part of the vehicle, that is to say the engine, to the side of the middle of the vehicle, which ensures the stability of the latter when braking, without the risk of load shedding of the rear wheels, even when the vehicle is not loaded in its rear part.
  • the engine housing is done, in such a case, neither to the detriment of the volume of the cabin, nor to the detriment of the loading volume.
  • FIG. 1 is a perspective view from three rear and top quarters of the chassis of this vehicle
  • Figure 2 is a perspective view of an assembly detail of two component parts of the chassis.
  • Figure 3 is a perspective view similar to Figure 1 after mounting a number of mechanical elements.
  • FIG. 4 is a side view of the vehicle constructed on the basis of the chassis of Figures 1 and 3, during assembly.
  • FIG. 1 represents the chassis of a vehicle, in the assembled position of this chassis.
  • the chassis comprises two parallel beams 2, each consisting of a spun tubular profile.
  • Each spar 2 is cut to length, this length being adapted to the length of the vehicle and the wheelbase thereof and has a number of holes 3 in its opposite vertical walls. These holes 3 are used for fixing by bolting a number of crosspieces 4, made of cast aluminum alloy, and parts 5, 6, made of aluminum alloy, fixed to the outside of the chassis.
  • the parts 6 are used in part for fixing cast parts 7 which participate in the mounting of the rear axle of the vehicle.
  • two parts 8 are provided fixed on the internal faces of the side members 2, the two parts 8 themselves serving for mounting a front crossmember 9 intended to receive the vehicle steering assembly.
  • tubular struts 10 are provided between the two wings of each spar between two pairs of holes 3. These tubular spacers each have a shoulder 12 allowing it to be held in the two holes 3.
  • the spacers are put in place by deformation of the profile causing a slight separation of the two vertical walls. After the installation of a spacer, the stress exerted on the profile is released so that the spacer remains in place.
  • These spacers prevent, during bolting with the aid of bolts 11 of the crosspieces 4 and of the various castings 5, 6, 7, 8 on the side members, that these do not deform.
  • the constituent parts of the crosspieces 4 as well as the parts 5, 6, 7, 8, 9 come from foundry with most of the holes used for their attachment to the side members, as well as holes used for the attachment of various mechanical organs. Under these conditions, the subsequent machining operations are reduced, which is an important factor of economy.
  • Fig 3 shows a perspective view of the chassis and the mechanical members during assembly of the vehicle. This view makes it possible to highlight that the engine 13 of the vehicle is fixed to the crosspieces 4 and 9, that the crosspiece 9 is used for mounting the front axle 14 of the vehicle, and that the parts 7 arranged at the rear of the vehicle are used for mounting the rear axle 15 of the vehicle.
  • the front axle of the vehicle is located at the front end of the chassis, and that the engine 13 is arranged substantially in rear of the front axle, and is located under the area receiving the seats for the driver and passenger.
  • This tray 16 is fixed by bolting and also by bonding to the chassis, the bolting essentially ensuring a positioning function and the bonding ensuring a good connection between the tray and the chassis.
  • This tank has excellent mechanical strength performance, since it is used for mounting the mechanical components of the vehicle, in particular for supporting the suspension heads, and for supporting a roll bar 18 delimiting the passenger compartment of the vehicle. On this roll bar 18 are fixed by gluing of the panels 19 constituting the vehicle body. The fixing of the roll bar on the tray 16 made of synthetic material is carried out by bolting.
  • the vehicle shown in the drawing, and in particular in Figure 4 has two doors.
  • Each door is associated with a frame fixed by bolting on the tank, in the lower part, and on the roll bar 18, at mid-height. In other places, the connection between the frame and the vehicle is made on the body panels.
  • the rear part of the vehicle is, in the case shown in the drawing, equipped with a loading platform which can be limited laterally by drop sides.
  • the invention provides a great improvement to the existing technique by providing a vehicle of simple structure and very modular in character, making it possible for example to choose the wheelbase of the vehicle taking into account the length of the side members. , and by making a chassis from a reduced number of parts, some of the crosspieces used in different locations to join the two beams being the same, and being able to be mounted in the same direction or in the opposite direction, depending on their location.
  • the position of the engine promotes the stability of the vehicle, in particular when braking, by ensuring a good distribution of the masses which is essential in the case of a light vehicle whose unladen weight may not exceed 350 kg.
  • the invention is not limited to the sole embodiment of this vehicle, described above by way of example, on the contrary it embraces all the variant embodiments thereof.
  • the roll bar could extend to the rear of the vehicle to form a van or else that the tubular spacers for the bolts could be mounted in U-shaped sections of cardboard or synthetic material. , dimensioned at the inner dimensions of the side members and inserted therein to the mounting position of the bolts, without departing from the scope of the invention.

Abstract

The vehicle comprises two fixed, tubular aluminium side members (2), cast aluminium alloy cross members (4, 9) which are fixed by screw-bolt-connection to the side members (2), and cast aluminium alloy parts (5, 6, 7, 8) which are fixed by screw-bolt-connection to the side members (2), the mechanical elements being fixed by screw-bolt-connection to the side members (2), cross members (4, 9) and cast parts (5, 6, 7, 8) which make up the chassis.

Description

VEHICULE AUTOMOBILE MOTOR VEHICLE
La présente invention a pour objet un véhicule automobile.The present invention relates to a motor vehicle.
L'invention s'applique plus particulièrement aux véhicules automobiles légers, dont le poids à vide est de l'ordre de 350 Kg, qui sont équipés d'un moteur de faible puissance, et dont l'utilisation ne nécessite pas nécessairement de permis de conduire.The invention applies more particularly to light motor vehicles, whose unladen weight is of the order of 350 Kg, which are equipped with a low power engine, and whose use does not necessarily require a license to drive.
L'invention vise plus particulièrement un véhicule léger à caractère utilitaire, comportant un plateau, ou se présentant sous forme de fourgon.The invention relates more particularly to a light utility vehicle, comprising a platform, or in the form of a van.
Un véhicule traditionnel comprend un châssis réalisé de différentes façons. Une première façon d'obtenir un châssis est de réaliser celui-ci par assemblage d'éléments par mécano-soudure. Une autre solution est de réaliser un châssis tubulaire.A traditional vehicle includes a chassis made in different ways. A first way to obtain a chassis is to produce it by assembling elements by mechanical welding. Another solution is to produce a tubular frame.
Dans tous les cas, il convient de mettre en œuvre un outillage tout à fait spécifique conduisant à des coûts de fabrication élevés. Le but de l'invention est de réaliser un véhicule automobile, notamment un véhicule léger, obtenu à partir d'éléments simples et susceptibles d'une certaine modularité.In all cases, very specific tools should be used, leading to high manufacturing costs. The object of the invention is to produce a motor vehicle, in particular a light vehicle, obtained from simple elements and capable of a certain modularity.
Un autre but de l'invention, dans le cas où le véhicule considéré est un petit utilitaire, est de fournir à celui-ci une structure lui assurant une bonne tenue de route, sachant que le problème à résoudre est celui d'une bonne répartition des poids, particulièrement importante sur un véhicule léger, et sachant que dans un véhicule utilitaire, la charge constituée par l'essentiel de la charge constituée parle moteur et le poids des passagers, est localisé sur l'avant du véhicule. A cet effet, le véhicule selon l'invention, comprenant deux longerons tubulaires en aluminium filé, des traverses coulées en alliage d'aluminium est caractérisé en ce que les traverses sont fixées par boulonnage sur les longerons, et des pièces coulées en alliage d'aluminium, fixées par boulonnage sur les longerons, les éléments mécaniques étant fixés par boulonnage sur les longerons, les traverses et les pièces coulées constitutives du châssis.Another object of the invention, in the case where the vehicle considered is a small utility vehicle, is to provide the latter with a structure ensuring good road handling, knowing that the problem to be resolved is that of good distribution. weights, particularly important on a light vehicle, and knowing that in a utility vehicle, the load made up of most of the load made up by the engine and the weight of the passengers, is located on the front of the vehicle. To this end, the vehicle according to the invention, comprising two tubular spars made of spun aluminum, cast aluminum sleepers is characterized in that the sleepers are fixed by bolting to the side members, and cast alloy pieces aluminum, fixed by bolting on the longitudinal members, the mechanical elements being fixed by bolting on the longitudinal members, the crosspieces and the casting parts constituting the chassis.
Les longerons tubulaires réalisés en aluminium filé sont coupés à la longueur souhaitée pour le véhicule, ce qui permet, à partir des mêmes tubes en aluminium de réaliser plusieurs types de véhicules possédant différents empattements, pour autant, bien entendu, que la résistance des profilés en aluminium formant les longerons soit adaptée à ces différents véhicules. Il est aussi possible, avec une telle structure, de réaliser un châssis télescopique, un profil intermédiaire étant inséré entre deux tronçons de profilés longitudinaux.The tubular beams made of spun aluminum are cut to the desired length for the vehicle, which allows, from the same aluminum tubes to make several types of vehicles with different wheelbases, provided, of course, that the resistance of the profiles in aluminum forming the side members is adapted to these different vehicles. It is also possible, with such a structure, to produce a telescopic frame, an intermediate profile being inserted between two sections of longitudinal profiles.
Les traverses reliant les longerons tubulaires sont réalisés en alliage d'aluminium et obtenues par fonderie. Ces traverses sont réalisées avec des trous qui permettent leur fixation par vissage sur les longerons, ainsi que la fixation d'organes mécaniques. Dans ces conditions, les reprises d'usinage sur ces pièces sont réduites.The sleepers connecting the tubular beams are made of aluminum alloy and obtained by foundry. These crosspieces are made with holes which allow them to be fixed by screwing onto the side members, as well as the fixing of mechanical members. Under these conditions, the resumption of machining on these parts is reduced.
Le châssis du véhicule comprend également des pièces coulées en alliage d'aluminium, fixées sur les longerons. Ces pièces peuvent servir notamment pour le montage des roues arrière, des éléments de suspension des roues arrière, et de l'ensemble de direction au niveau de l'avant du châssis.The vehicle chassis also includes cast aluminum alloy parts attached to the side members. These parts can be used in particular for mounting the rear wheels, suspension elements for the rear wheels, and the steering assembly at the front of the chassis.
Il est intéressant de noter que le châssis est réalisé par boulonnage, sans recours à des opérations de soudure.It is interesting to note that the chassis is made by bolting, without resorting to welding operations.
Suivant une caractéristique de l'invention, les longerons tubulaires comportent des trous traversants pour la fixation des traverses et des autres pièces coulées, chaque paire de trous coaxiaux ménagés dans deux parois parallèles d'un longeron étant associée à une entretoise tubulaire épaulée pour le passage d'un boulon, les deux extrémités épaulées de l'entretoise étant en appui contre les deux parois au niveau des deux trous de celles-ci et les différentes entretoises étant mises en place avant montage des traverses et des autres pièces coulées, par déformation du profilé constitutif du longeron, correspondant à un écartement des deux parois verticales de celui-ci. Les longerons tubulaires en aluminium comportent des trous pour la fixation des traverses et des autres pièces coulées nécessaires à la réalisation du véhicule.According to a characteristic of the invention, the tubular beams have through holes for fixing the sleepers and other castings, each pair of coaxial holes formed in two parallel walls of a beam being associated with a shouldered tubular spacer for passage a bolt, the two shouldered ends of the spacer being in abutment against the two walls at the level of the two holes thereof and the various spacers being put in place before mounting the crosspieces and other castings, by deformation of the constitutive profile of the spar, corresponding to a spacing of the two vertical walls thereof. The aluminum tubular beams have holes for fixing the sleepers and other castings necessary for the construction of the vehicle.
Après mise en place des traverses, la contrainte exercée sur l'élément tubulaire est relâchée, de telle sorte que chaque traverse tubulaire demeure bloquée au niveau des deux trous qu'elle relie, par engagement dans ces deux trous des deux épaulements qu'elle présente.After positioning of the crosspieces, the stress exerted on the tubular element is released, so that each tubular crosspiece remains blocked at the two holes which it connects, by engagement in these two holes of the two shoulders which it presents. .
Suivant une autre caractéristique de l'invention, sur le châssis du véhicule est fixé par collage et/ou boulonnage un bac sur lequel est fixé un arceau de sécurité supportant les panneaux de carrosserie.According to another characteristic of the invention, on the vehicle chassis is fixed by gluing and / or bolting a tray on which is fixed a roll bar supporting the body panels.
Avantageusement, le bac est réalisé en matière synthétique, en résine polyester armée de fibres de renfort, obtenu par moulage basse pression, ce bac étant fixé sur le châssis par collage et/ou par boulonnage. Le bac en matière synthétique s'étend au moins dans la partie avant du véhicule. Dans le cas d'un véhicule utilitaire à plateau, le bac s'étend dans la partie avant du véhicule et l'arceau de sécurité est disposé entre l'avant et l'arrière du bac, la partie arrière du véhicule étant équipée d'un plateau fixé sur le châssis.Advantageously, the tank is made of synthetic material, of polyester resin reinforced with reinforcing fibers, obtained by low pressure molding, this tank being fixed to the frame by gluing and / or by bolting. The plastic container extends at least in the front part of the vehicle. In the case of a flatbed utility vehicle, the bin extends in the front part of the vehicle and the roll bar is arranged between the front and the rear of the bin, the rear part of the vehicle being equipped with a plate fixed to the chassis.
Dans le cas d'un véhicule utilitaire de type fourgon, le bac peut s'étendre sur toute la longueur du véhicule, et l'arceau de sécurité couvre également la totalité de la longueur du véhicule.In the case of a van type utility vehicle, the bin can extend over the entire length of the vehicle, and the roll bar also covers the entire length of the vehicle.
Suivant une autre caractéristique de l'invention, l'arceau de sécurité est fixé sur le bac par boulonnage.According to another characteristic of the invention, the roll bar is fixed to the tank by bolting.
Selon un mode de réalisation de ce véhicule, le dormant qui reçoit la partie fixe de la charnière de chaque porte est fixé d'une part sur le bac et d'autre part, à mi-hauteur, sur l'arceau.According to one embodiment of this vehicle, the frame which receives the fixed part of the hinge of each door is fixed on the one hand on the tray and on the other hand, halfway up, on the hoop.
Afin de réaliser un bon équilibre des charges, dans le cas d'un petit véhicule utilitaire, le moteur est fixé sur le châssis et disposé sous le bac, sous l'emplacement des sièges avant du véhicule, tandis que les roues avant sont disposées à l'avant du châssis. Cette solution permet de ramener une partie lourde du véhicule, c'est-à-dire le moteur, du côté du milieu du véhicule, ce qui assure la stabilité de celui-ci au freinage, sans risque de délestage des roues arrières, même lorsque le véhicule n'est pas chargé dans sa partie arrière. En outre, le logement du moteur ne se fait, dans un tel cas, ni au détriment du volume de la cabine, ni au détriment du volume de chargement.In order to achieve a good balance of loads, in the case of a small utility vehicle, the engine is fixed to the chassis and arranged under the tank, under the location of the vehicle's front seats, while the front wheels are arranged at the front of the chassis. This solution makes it possible to bring a heavy part of the vehicle, that is to say the engine, to the side of the middle of the vehicle, which ensures the stability of the latter when braking, without the risk of load shedding of the rear wheels, even when the vehicle is not loaded in its rear part. In addition, the engine housing is done, in such a case, neither to the detriment of the volume of the cabin, nor to the detriment of the loading volume.
De toute façon l'invention sera bien comprise à l'aide de la description qui suit, en référence aux dessins schématiques annexés représentant, à titre d'exemple non limitatif, une forme d'exécution de ce véhicule automobile, dans le cas d'un véhicule utilitaire léger à plateau.In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended diagrammatic drawings representing, by way of nonlimiting example, an embodiment of this motor vehicle, in the case of a light utility vehicle with platform.
Figure 1 est une vue en perspective, de trois quarts arrière et de dessus du châssis de ce véhicule,FIG. 1 is a perspective view from three rear and top quarters of the chassis of this vehicle,
Figure 2 est une vue en perspective d'un détail d'assemblage de deux pièces constitutives du châssis.Figure 2 is a perspective view of an assembly detail of two component parts of the chassis.
Figure 3 est une vue en perspective similaire à figure 1 après montage d'un certain nombre d'éléments mécaniques.Figure 3 is a perspective view similar to Figure 1 after mounting a number of mechanical elements.
Figure 4 est une vue de côté du véhicule construit sur la base du châssis de figures 1 et 3, en cours de montage. La figure 1 représente le châssis d'un véhicule, en position assemblée de ce châssis. Le châssis comporte deux longerons 2, parallèles, constitués chacun par un profilé tubulaire filé. Chaque longeron 2 est coupé à la longueur, cette longueur étant adaptée à la longueur du véhicule et à l'empattement de celui-ci et présente un certain nombre de perçage 3 dans ses parois verticales opposées. Ces perçages 3 servent à la fixation par boulonnage d'un certain nombre de traverses 4, en alliage d'aluminium coulé, et de pièces 5, 6, en alliage d'aluminium, fixées à l'extérieur du châssis. Il est à noter que les pièces 6 servent pour partie à la fixation de pièces coulées 7 qui participent au montage du train arrière du véhicule. A l'extrémité avant du châssis, sont prévues deux pièces 8 fixées sur les faces internes des longerons 2, les deux pièces 8 servant elles-mêmes au montage d'une traverse avant 9 destinée à recevoir l'ensemble de direction du véhicule.Figure 4 is a side view of the vehicle constructed on the basis of the chassis of Figures 1 and 3, during assembly. FIG. 1 represents the chassis of a vehicle, in the assembled position of this chassis. The chassis comprises two parallel beams 2, each consisting of a spun tubular profile. Each spar 2 is cut to length, this length being adapted to the length of the vehicle and the wheelbase thereof and has a number of holes 3 in its opposite vertical walls. These holes 3 are used for fixing by bolting a number of crosspieces 4, made of cast aluminum alloy, and parts 5, 6, made of aluminum alloy, fixed to the outside of the chassis. It should be noted that the parts 6 are used in part for fixing cast parts 7 which participate in the mounting of the rear axle of the vehicle. At the front end of the chassis, two parts 8 are provided fixed on the internal faces of the side members 2, the two parts 8 themselves serving for mounting a front crossmember 9 intended to receive the vehicle steering assembly.
Il doit être noté que, comme montré à la figure 2 qui est une vue en coupe longitudinale selon la ligne 11-11 de figure 1 , des entretoises tubulaires 10 sont prévues entre les deux ailes de chaque longeron entre deux paires de perçage 3. Ces entretoises tubulaires comportent chacune un épaulement 12 permettant son maintien dans les deux perçages 3. Les entretoises sont mises en place par déformation du profilé provoquant un léger écartement des deux parois verticales. Après mise en place d'une entretoise, la contrainte exercée sur le profilé est relâchée de telle sorte que l'entretoise demeure en place. Ces entretoises évitent, lors du boulonnage à l'aide de boulons 11 des traverses 4 et des différentes pièces coulées 5, 6, 7, 8 sur les longerons, que ceux-ci ne se déforment.It should be noted that, as shown in Figure 2 which is a longitudinal sectional view along line 11-11 of Figure 1, tubular struts 10 are provided between the two wings of each spar between two pairs of holes 3. These tubular spacers each have a shoulder 12 allowing it to be held in the two holes 3. The spacers are put in place by deformation of the profile causing a slight separation of the two vertical walls. After the installation of a spacer, the stress exerted on the profile is released so that the spacer remains in place. These spacers prevent, during bolting with the aid of bolts 11 of the crosspieces 4 and of the various castings 5, 6, 7, 8 on the side members, that these do not deform.
Il doit être noté que les pièces constitutives des traverses 4 ainsi que les pièces 5, 6, 7, 8, 9 viennent de fonderie avec la plupart des trous servant à leur fixation sur les longerons, ainsi que des trous servant à la fixation de différents organes mécaniques. Dans ces conditions, les opérations ultérieures d'usinage sont réduites, ce qui est un facteur important d'économie.It should be noted that the constituent parts of the crosspieces 4 as well as the parts 5, 6, 7, 8, 9 come from foundry with most of the holes used for their attachment to the side members, as well as holes used for the attachment of various mechanical organs. Under these conditions, the subsequent machining operations are reduced, which is an important factor of economy.
La figue 3 représente une vue en perspective du châssis et des organes mécaniques en cours de montage du véhicule. Cette vue permet de mettre en évidence que le moteur 13 du véhicule est fixé sur les traverses 4 et 9, que la traverse 9 sert au montage du train avant 14 du véhicule, et que les pièces 7 disposées à l'arrière du véhicule servent au montage du train arrière roulant 15 du véhicule.Fig 3 shows a perspective view of the chassis and the mechanical members during assembly of the vehicle. This view makes it possible to highlight that the engine 13 of the vehicle is fixed to the crosspieces 4 and 9, that the crosspiece 9 is used for mounting the front axle 14 of the vehicle, and that the parts 7 arranged at the rear of the vehicle are used for mounting the rear axle 15 of the vehicle.
Il ressort de la figure 3 que le train avant du véhicule est situé à l'extrémité avant du châssis, et que le moteur 13 est disposé sensiblement en arrière du train avant, et se situe sous la zone recevant les sièges pour le conducteur et le passager.It appears from FIG. 3 that the front axle of the vehicle is located at the front end of the chassis, and that the engine 13 is arranged substantially in rear of the front axle, and is located under the area receiving the seats for the driver and passenger.
Dans la partie avant du véhicule est fixé sur le châssis un bac 16 en matière synthétique en résine polyester armée de fibres de renfort, obtenu par moulage basse pression. Ce bac 16 est fixé par boulonnage et également par collage sur le châssis, le boulonnage assurant essentiellement une fonction de positionnement et le collage assurant une bonne solidarisation entre le bac et le châssis. Ce bac possède d'excellentes performances de résistance mécanique, puisqu'il sert au montage d'organes mécaniques constitutifs du véhicule, notamment de support aux têtes de suspension, et de support à un arceau de sécurité 18 délimitant l'habitacle du véhicule. Sur cet arceau de sécurité 18 sont fixés par collage des panneaux 19 constitutifs de la carrosserie du véhicule. La fixation de l'arceau de sécurité sur le bac 16 en matière synthétique est réalisée par boulonnage. Le véhicule représenté au dessin, et notamment à la figure 4, possède deux portes. A chaque porte est associé un dormant fixé par boulonnage sur le bac, en partie basse, et sur l'arceau de sécurité 18, à mi hauteur. Aux autres endroits, la liaison entre le dormant et le véhicule est réalisée sur les panneaux de carrosserie. La partie arrière du véhicule est, dans le cas représenté au dessin, équipée d'un plateau de chargement pouvant être limité latéralement par des ridelles.In the front part of the vehicle is fixed to the chassis a tank 16 made of synthetic resin polyester reinforced with reinforcing fibers, obtained by low pressure molding. This tray 16 is fixed by bolting and also by bonding to the chassis, the bolting essentially ensuring a positioning function and the bonding ensuring a good connection between the tray and the chassis. This tank has excellent mechanical strength performance, since it is used for mounting the mechanical components of the vehicle, in particular for supporting the suspension heads, and for supporting a roll bar 18 delimiting the passenger compartment of the vehicle. On this roll bar 18 are fixed by gluing of the panels 19 constituting the vehicle body. The fixing of the roll bar on the tray 16 made of synthetic material is carried out by bolting. The vehicle shown in the drawing, and in particular in Figure 4, has two doors. Each door is associated with a frame fixed by bolting on the tank, in the lower part, and on the roll bar 18, at mid-height. In other places, the connection between the frame and the vehicle is made on the body panels. The rear part of the vehicle is, in the case shown in the drawing, equipped with a loading platform which can be limited laterally by drop sides.
Il ressort de la description qui précède que l'invention apporte une grande amélioration à la technique existante en fournissant un véhicule de structure simple et de caractère très modulaire, permettant par exemple de choisir l'empattement du véhicule en tenant compte de la longueur des longerons, et en réalisant un châssis à partir d'un nombre réduit de pièces, certaines des traverses utilisées en différents emplacements pour réunir les deux longerons étant les mêmes, et pouvant être montées dans le même sens ou en sens inverse, suivant leur localisation.It appears from the foregoing description that the invention provides a great improvement to the existing technique by providing a vehicle of simple structure and very modular in character, making it possible for example to choose the wheelbase of the vehicle taking into account the length of the side members. , and by making a chassis from a reduced number of parts, some of the crosspieces used in different locations to join the two beams being the same, and being able to be mounted in the same direction or in the opposite direction, depending on their location.
Il doit également être noté que la position du moteur favorise la stabilité du véhicule, notamment au freinage, en assurant une bonne répartition des masses qui est essentielle dans le cas d'un véhicule léger dont le poids à vide peut ne pas dépasser 350 Kg. Comme il va de soi l'invention ne se limite pas à la seule forme d'exécution de ce véhicule, décrite ci-dessus à titre d'exemple, elle en embrasse au contraire toutes les variantes de réalisation.It should also be noted that the position of the engine promotes the stability of the vehicle, in particular when braking, by ensuring a good distribution of the masses which is essential in the case of a light vehicle whose unladen weight may not exceed 350 kg. As it goes without saying, the invention is not limited to the sole embodiment of this vehicle, described above by way of example, on the contrary it embraces all the variant embodiments thereof.
C'est ainsi notamment que l'arceau de sécurité pourrait s'étendre jusqu'à l'arrière du véhicule pour former un fourgon ou encore que les entretoises tubulaires pour les boulons pourraient être montées dans des profilés en U en carton ou en matière synthétique, dimensionnés aux cotes intérieures des longerons et insérés dans ceux-ci jusqu'à la position de montage des boulons, sans que l'on sorte pour autant du cadre de l'invention. Thus, in particular, the roll bar could extend to the rear of the vehicle to form a van or else that the tubular spacers for the bolts could be mounted in U-shaped sections of cardboard or synthetic material. , dimensioned at the inner dimensions of the side members and inserted therein to the mounting position of the bolts, without departing from the scope of the invention.

Claims

REVENDICATIONS
1. Véhicule automobile, comprenant deux longerons tubulaires (2) en aluminium filé, des traverses (4, 9) coulées en alliage d'aluminium caractérisé en ce que les traverses sont fixées par boulonnage sur les longerons (2), et des pièces (5, 6, 7, 8) coulées en alliage d'aluminium fixées par boulonnage sur les longerons (2), les éléments mécaniques étant fixés par boulonnage sur les longerons (2), les traverses (4, 9) et les pièces (5, 6, 7, 8) coulées constitutives du châssis. 1. Motor vehicle, comprising two tubular beams (2) of spun aluminum, crossbars (4, 9) cast from an aluminum alloy, characterized in that the crossbars are fixed by bolting to the beams (2), and parts ( 5, 6, 7, 8) castings of aluminum alloy fixed by bolting on the side rails (2), the mechanical elements being fixed by bolting on the side rails (2), the sleepers (4, 9) and the parts (5 , 6, 7, 8) constituent castings of the chassis.
2. Véhicule automobile selon la revendication 1 , caractérisé en ce que les longerons tubulaires (2) comportent des trous traversants (3) pour la fixation des traverses (4, 9) et des autres pièces coulées (5, 6, 7, 8), chaque paire de trous coaxiaux ménagés dans deux parois parallèles d'un longeron (2) étant associée à une entretoise tubulaire (10) épaulée pour le passage d'un boulon (11), les deux extrémités épaulées (12) de l'entretoise étant en appui contre les deux parois au niveau des deux trous (3) de celles-ci et les différentes entretoises (10) étant mises en place avant montage des traverses (4, 9) et des autres pièces coulées (5, 6, 7, 8) par déformation du profilé constitutif du longeron. 2. Motor vehicle according to claim 1, characterized in that the tubular beams (2) have through holes (3) for fixing the sleepers (4, 9) and other castings (5, 6, 7, 8) , each pair of coaxial holes formed in two parallel walls of a beam (2) being associated with a tubular spacer (10) shouldered for the passage of a bolt (11), the two shouldered ends (12) of the spacer being in abutment against the two walls at the level of the two holes (3) of these and the various spacers (10) being put in place before mounting of the crosspieces (4, 9) and of the other castings (5, 6, 7 , 8) by deformation of the profile constituting the beam.
3. Véhicule automobile selon l'une des revendications 1 et 2, caractérisé en ce que sur le châssis du véhicule es fixé par collage et/ou boulonnage un bac (16) sur lequel est fixé un arceau de sécurité (18) supportant les panneaux de carrosserie (19).3. Motor vehicle according to one of claims 1 and 2, characterized in that on the vehicle chassis are fixed by gluing and / or bolting a tank (16) on which is fixed a roll bar (18) supporting the panels bodywork (19).
4. Véhicule automobile selon la revendication 3, caractérisé en ce que le bac (16) est réalisé en matière synthétique, en résine polyester armé de fibres de renfort, obtenu par moulage basse pression, ce bac étant fixé sur le châssis par collage et/ou par boulonnage.4. Motor vehicle according to claim 3, characterized in that the tank (16) is made of synthetic material, of polyester resin reinforced with reinforcing fibers, obtained by low pressure molding, this tank being fixed to the chassis by bonding and / or by bolting.
5. Véhicule selon l'une des revendications 3 et 4, caractérisé en ce que l'arceau de sécurité (18) est fixé sur le bac (16) par boulonnage. 5. Vehicle according to one of claims 3 and 4, characterized in that the roll bar (18) is fixed to the tank (16) by bolting.
6. Véhicule selon l'une des revendication 3 à 5, caractérisé en ce que le dormant qui reçoit la partie fixe de la charnière de chaque porte est fixé d'une part sur le bac (16) et d'autre part, à mi-hauteur, sur l'arceau (18).6. Vehicle according to one of claims 3 to 5, characterized in that the frame which receives the fixed part of the hinge of each door is fixed on the one hand on the tray (16) and on the other hand, mid -height, on the arch (18).
7. Véhicule selon l'une des revendication 3 à 6, caractérisé en ce que dans le cas d'un véhicule utilitaire à plateau, le bac (16) s'étend dans la partie avant du véhicule et l'arceau de sécurité (18) est disposé entre l'avant et l'arrière du bac (16), la partie arrière du véhicule étant équipée d'un plateau fixé sur le châssis.7. Vehicle according to one of claims 3 to 6, characterized in that in the case of a flatbed utility vehicle, the tray (16) extends in the front part of the vehicle and the roll bar (18 ) is arranged between the front and the rear of the tank (16), the rear part of the vehicle being equipped with a plate fixed to the chassis.
8. Véhicule selon l'une des revendication 3 à 7, caractérisé en ce que le moteur (13) est fixé sur le châssis et disposé sous le bac (16), sous l'emplacement des sièges avant du véhicule, tandis que les roues avant sont disposées à l'avant du châssis. 8. Vehicle according to one of claims 3 to 7, characterized in that the engine (13) is fixed to the chassis and arranged under the tank (16), under the location of the front seats of the vehicle, while the wheels front are arranged at the front of the chassis.
EP03772374A 2002-09-25 2003-09-19 Motor vehicle Withdrawn EP1542897A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0211842A FR2844766B1 (en) 2002-09-25 2002-09-25 MOTOR VEHICLE
FR0211842 2002-09-25
PCT/FR2003/002771 WO2004028885A1 (en) 2002-09-25 2003-09-19 Motor vehicle

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EP1542897A1 true EP1542897A1 (en) 2005-06-22

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WO (1) WO2004028885A1 (en)

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Publication number Priority date Publication date Assignee Title
FR2873335B1 (en) * 2004-07-20 2007-11-09 Defi Car Sarl MOTORIZED LIGHT VEHICLE
US7275296B2 (en) * 2004-10-29 2007-10-02 Magna Structural Systems, Inc. Method for forming a frame assembly
DE602004020524D1 (en) * 2004-12-21 2009-05-20 Renault Trucks CHASSIS FOR MOTORIZED VEHICLE
CN103359171B (en) * 2012-03-31 2016-12-14 晟通科技集团有限公司 A kind of aluminum truss type frame
US8869929B2 (en) * 2012-12-27 2014-10-28 Kawasaki Jukogyo Kabushiki Kaisha Vehicle body frame of utility vehicle
GB2528266B (en) * 2014-07-15 2017-03-29 Gordon Murray Design Ltd Vehicle and chassis
CN110803220B (en) * 2019-11-15 2021-03-09 一汽解放汽车有限公司 Integrated automobile frame and manufacturing method thereof

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JPS5940948A (en) * 1982-08-31 1984-03-06 Yamaha Motor Co Ltd Compact vehicle
FR2712555B1 (en) * 1993-11-16 1996-01-19 Smh Management Services Ag Chassis for a motor vehicle.
US6250410B1 (en) * 1995-03-03 2001-06-26 C.R.F. Societa Consortile Per Azioni Motor vehicle with a supporting structure of light alloy
DE19748894A1 (en) * 1997-11-05 1999-05-06 Hymer Ag Werk Polch Large bodied vehicle, especially mobile home
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AU2003279428A1 (en) 2004-04-19
FR2844766B1 (en) 2005-06-17
WO2004028885A1 (en) 2004-04-08

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