FR2895008A1

FR2895008A1 - Motor vehicle e.g. car, has motor accessing differential having shafts with pinions, where one pinion is connected to driving device to drive in rotation bar, and other pinion is connected to another device to slidingly drive door

Info

Publication number: FR2895008A1
Application number: FR0512829A
Authority: FR
Inventors: Pascal Guinois
Original assignee: Peugeot Citroen Automobiles SA
Current assignee: PSA Automobiles SA
Priority date: 2005-12-16
Filing date: 2005-12-16
Publication date: 2007-06-22
Anticipated expiration: 2025-12-16
Also published as: FR2895008B1

Abstract

The vehicle has a lateral door (4) slidingly mounted with respect to a body shell (2) via a support/guiding assembly (6). The assembly has a carriage (7) sliding along a rail (5) and mounted on a swaying bar (9). A motor (11) access a differential (82) having output shafts (87, 89) with respective notched outlet pinions (871, 891). The pinion (871) is connected to a driving device to drive the bar in rotation around an axis (V9). The pinion (891) is connected to another driving device to slidingly drive the door with respect to the shell by sliding the carriage along the rail.

Description

La presente invention a trait a un vehicule automobile, du type comprenantThe present invention relates to a motor vehicle, of the type comprising

une structure pourvue d'une ouverture, une porte laterale pour fermer ou ouvrir 1'ouverture, la porte etant montee coulissante par rapport a la structure par 1'intermediaire d'au moms un ensemble de support et de guidage comprenant un rail solidaire de la porte et un chariot destine a coulisser le long du rail, le chariot etant monte sur un bras de dehanchement monte pivotant, autour d'un axe, par rapport a la structure, le deplacement de ce bras entre une position rabattue le long de la structure et une position deployee vers 1'exterieur de la structure en debut d'ouverture de la porte permettant de deplacer la porte vers 1'exterieur de la structure. Le document US-Bl-6 183 039 decrit un vehicule automobile du type precite, comprenant deux chariots coulissant dans le meme rail, associes a deux bras de dehanchement paralleles. Il est par ailleurs connu de deplacer une porte de vehicule automobile en attelant a un moteur un chariot destine a coulisser le long d'un rail au moyen d'un cable relie en boucle. Un tel dispositif de deplacement n'est cependant pas adapte dans le cas ou le mouvement de la porte comporte plusieurs phases, differentes d'un point de vue cinematique. C'est notamment le cas du mouvement de la porte d'un vehicule automobile du type precite, qui comporte une phase dite de dehanchement suivie d'une phase de coulissement. L'utilisation d'un entrainement par cable du chariot imposerait pour ce type de vehicule automobile une double motorisation, de maniere a satisfaire aux conditions cinematiques de chacune des deux phases du mouvement. Un tel dispositif a double motorisation serait encombrant. De plus, it ne permettrait pas d'obtenir une synchronisation des deux mouvements. a structure provided with an opening, a side door for closing or opening the opening, the door being slidably mounted relative to the structure via at least one support and guide assembly comprising a rail integral with the door and a carriage for sliding along the rail, the carriage being mounted on a swing arm mounted pivotally about an axis, relative to the structure, the displacement of this arm between a folded position along the structure and a position deployed to the outside of the structure at the beginning of the opening of the door for moving the door to the outside of the structure. Document US-B-6 183 039 describes a motor vehicle of the aforementioned type, comprising two carriages sliding in the same rail, associated with two parallel dehorning arms. It is also known to move a motor vehicle door by hitching to a motor a carriage for sliding along a rail by means of a cable connects loop. Such a displacement device is however not suitable in the case where the movement of the door comprises several phases, different from a cinematic point of view. This is particularly the case of the movement of the door of a motor vehicle of the aforementioned type, which includes a so-called dehangement phase followed by a sliding phase. The use of a cable drive of the truck would impose for this type of motor vehicle a dual motorization, so as to meet the cinematic conditions of each of the two phases of the movement. Such a device with double motorization would be bulky. Moreover, it would not allow to obtain a synchronization of the two movements.

C'est ces inconvenients qu'entend plus particulierement remedier 1'invention en proposant un vehicule automobile qui comprend une motorisation compacte, apte a satisfaire aux conditions cinematiques differentes des phases successives du mouvement d'ouverture d'une porte telle que mentionnee ci-dessus. A cet effet, 1'invention a pour objet un vehicule automobile du type precite, caracterise en ce qu'il comprend un moteur, fixe sur le bras de dehanchement au voisinage de son axe de pivotement, le moteur attaquant un differentiel comportant deux arbres de sortie, munis respectivement d'un premier et d'un deuxieme pignons de sortie, le premier pignon de sortie etant relict a un dispositif d'entralnement en rotation du bras autour de son axe de pivotement, alors que le deuxieme pignon de sortie est relict a un dispositif d'entralnement en coulissement de la porte par rapport a la structure par coulissement du chariot le long du rail. Selon d'autres caracteristiques avantageuses de 1'invention - le dispositif d'entrainement en rotation du bras comprend un secteur dente solidaire du bras au voisinage de son axe de pivotement, le premier pignon de sortie etant crante et engrenant sur le secteur dente ; - le dispositif d'entrainement en coulissement de la porte comprend un pignon d'entrainement en rotation du chariot, ce pignon d'entrainement etant monte sur le bras et relict au deuxieme pignon de sortie qui 1'entralne en rotation ; - le pignon d'entralnement du chariot est relict au deuxieme pignon de sortie au moyen d'une courroie de transmission ; le pignon d'entrainement du chariot est relict au deuxieme pignon de sortie en formant un engrenage ; - le chariot comporte un pignon crante central solidaire en rotation du pignon d'entrainement et apte a cooperer avec une Bangle crantee fixee a chaque extremite de la porte dans le rail ; - le differentiel est positionne sur le bras en etant regroupe avec le dispositif d'entrainement en rotation du bras ; - le dispositif d'entrainement en coulissement de la porte est positionne sur le bras en etant regroupe avec 10 le differentiel ; - les arbres de sortie du differentiel ne sont pas en mouvement en meme temps ; - les arbres de sortie du differentiel sont en mouvement simultanement a la fin du deplacement en rotation 15 du bras autour de son axe de pivotement et au debut du coulissement de la porte par rapport a la structure. Les caracteristiques et avantages de 1'invention apparaitront dans la description qui va suivre de plusieurs modes de realisation d'un vehicule automobile selon 20 1'invention, donnee uniquement a titre d'exemple et faite en se referant aux dessins annexes dans lesquels : - la figure 1 est une vue laterale schematique d'un vehicule automobile conforme a 1'invention comportant une porte laterale coulissante illustree en position 25 fermee ; - la figure 2 est une vue analogue a la figure 1, la porte coulissante etant illustree en position ouverte ; - la figure 3 est une coupe selon la ligne III-III de la figure 1 montrant un bras de dehanchement d'un 30 vehicule automobile conforme a un premier mode de realisation de 1'invention ; - la figure 4 est une section partielle selon la ligne IV-IV de la figure 3 ; - la figure 5 est une section partielle selon la ligne V-V de la figure 3 ; - la figure 6 est une coupe analogue a la figure 3 mais a plus petite echelle pour un vehicule automobile conforme a un deuxieme mode de realisation de 1'invention ; - la figure 7 est une coupe analogue a la figure 6 pour un vehicule automobile conforme a un troisieme mode de realisation de 1'invention. Le vehicule automobile 1 represents a la figure 1, comprend une structure ou caisse 2 comportant une ouverture laterale 3, permettant d'acceder a 1'intsrieur du vehicule 1, et une porte laterale 4. La porte 4 est montee coulissante sur la caisse 2 entre une position fermee representee a la figure 1, dans laquelle la porte 4 obture 1'ouverture 3, et une position ouverte representee a la figure 2, dans laquelle la porte 4 est degagee de 1'ouverture 3 pour libsrer 1'acces a 1'interieur du vehicule 1. Lors de son ouverture, la porte 4 se deplace sequentiellement, dans un premier temps transversalement vers 1'exterieur du vehicule 1, c'est-a-dire perpendiculairement au plan des figures 1 et 2, afin que la porte 4 se degage de 1'ouverture 3, et dans un deuxieme temps longitudinalement vers 1'arriere, comme illustre par la fleche F1 a la figure 1, pour decaler la porte 4 de 1'ouverture 3. Le deplacement transversal de la porte 4 est egalement nomme mouvement de dehanchement >>. La porte 4 est montee sur la caisse 2 par 1'intermediaire de plusieurs ensembles de guidage et de support, dont un seul est represents sur les figures avec la reference 6. L'ensemble 6 comprend un rail 5, fixs horizontalement sensiblement a mi-hauteur de la porte 4, et un chariot 7 monte sur la caisse 2 a proximity d'un bord arriere de 1'ouverture 3 et coulissant le long du rail 5. It is these drawbacks that the invention more particularly intends to remedy by proposing a motor vehicle which comprises a compact motorization, capable of satisfying the kinematic conditions different from the successive phases of the opening movement of a door as mentioned above. . For this purpose, the invention relates to a motor vehicle of the aforementioned type, characterized in that it comprises a motor, fixed on the arm of dehangement in the vicinity of its pivot axis, the motor attacking a differential having two shafts of output, respectively provided with a first and a second output gear, the first output gear being relict a device for rotating the arm about its pivot axis, while the second output gear is relict has a device for slidable sliding of the door relative to the structure by sliding the carriage along the rail. According to other advantageous features of 1'invention - the device for rotating the arm comprises a dente sector integral with the arm in the vicinity of its pivot axis, the first output gear being notch and meshing on the sector dente; - The sliding drive device of the door comprises a drive pinion in rotation of the carriage, the drive pinion is mounted on the arm and relict the second output pinion which rotates it centrally; - The carriage drive gear is relict to the second output gear by means of a transmission belt; the drive gear of the carriage is relict to the second output gear forming a gear; - The carriage comprises a central pinion gear rotationally fixed to the drive pinion and adapted to cooperate with a bangle pinched at each end of the door in the rail; the differential is positioned on the arm while being combined with the device for rotating the arm; the slider driving device of the door is positioned on the arm while being combined with the differential; the output trees of the differential are not moving at the same time; the output shafts of the differential are in motion simultaneously at the end of the rotational movement of the arm about its pivot axis and at the beginning of the sliding of the door with respect to the structure. The features and advantages of the invention will appear in the following description of several embodiments of a motor vehicle according to the invention, given solely by way of example and made with reference to the appended drawings in which: Figure 1 is a schematic side view of a motor vehicle according to the invention having a sliding side door shown in a closed position; - Figure 2 is a view similar to Figure 1, the sliding door being shown in the open position; FIG. 3 is a section along the line III-III of FIG. 1 showing a dewatering arm of a motor vehicle according to a first embodiment of the invention; - Figure 4 is a partial section along the line IV-IV of Figure 3; - Figure 5 is a partial section along the line V-V of Figure 3; FIG. 6 is a section similar to FIG. 3 but at a smaller scale for a motor vehicle according to a second embodiment of the invention; Figure 7 is a section similar to Figure 6 for a motor vehicle according to a third embodiment of the invention. The motor vehicle 1 represents in Figure 1, comprises a structure or box 2 having a lateral opening 3, for accessing the vehicle interior 1, and a side door 4. The door 4 is slidably mounted on the body 2 between a closed position shown in Figure 1, in which the door 4 closes the opening 3, and an open position shown in Figure 2, in which the door 4 is released from the opening 3 to libsrer the access to 1 1. When it is opened, the door 4 moves sequentially, initially transversely to the outside of the vehicle 1, that is to say perpendicularly to the plane of FIGS. 1 and 2, so that the door door 4 is disengaged from the opening 3, and in a second time longitudinally towards the rear, as illustrated by the arrow F1 in FIG. 1, to shift the door 4 of the opening 3. The transversal displacement of the door 4 is also called dehorning movement >>. The door 4 is mounted on the body 2 by means of several guide and support assemblies, only one of which is shown in the figures with the reference 6. The assembly 6 comprises a rail 5, fixed horizontally substantially half way. height of the door 4, and a carriage 7 mounts on the box 2 close to a rear edge of the opening 3 and sliding along the rail 5.

Comme visible a la figure 3, le rail 5 a une section transversale en U ouverte vers le bas. Le rail 5 comporte deux pistes de roulement verticales 51 disposees en vis-a-vis. As seen in Figure 3, the rail 5 has a U-shaped cross section open downward. The rail 5 has two vertical rolling tracks 51 arranged vis-à-vis.

Le chariot 7 comprend une partie de corps 72, traversee par une broche 71 qui s'etend en saillie a 1'interieur du rail 5. Un pignon crante central 73, supporte par la partie de corps 72, est monte sur la broche 71 en rotation autour d'un axe vertical V7. La progression du chariot 7 le long du rail 5 est realisee par la cooperation entre le pignon crante central 73 et une sangle crantee 17, fixee a chaque extremite de la porte 4 et s'etendant le long d'une des pistes 51 du rail 5. Le chariot 7 comprend egalement deux galets lateraux 75, visibles a la figure 5, supper-Les par la partie de corps 72 et encadrant le pignon crante central 73. Les galets 75 plaquent la sangle 17 contre le pignon 73 et assurent un nombre de dents en prise suffisant pour assurer la resistance et 1'endurance des dents de la sangle ou du pignon. La tension est predefinie et s'opere automatiquement au montage des extremites de la sangle 17, soit par vissage avec un couple maitrise, soit par liberation d'un ressort puis blocage. Pour assurer le mouvement de dehanchement de la partie arriere de la porte 4, le chariot 7 est monte sur un bras de dehanchement 9. Le bras 9 comporte un montant principal 91, a partir duquel s'etendent une branche superieure 93 et une branche inferieure 95 sensiblement perpendiculaires au montant principal 91. Le bras 9 est monte pivotant sur la caisse 2 autour d'un axe vertical V9. Un secteur dente 97 est positionne au voisinage de la jonction entre le montant principal 91 et la branche inferieure 95 du bras 9. Ce secteur dente 97 est solidaire en rotation du bras 9. The carriage 7 comprises a body portion 72, traversed by a pin 71 which protrudes inside the rail 5. A central pinion gear 73, supported by the body portion 72, is mounted on the pin 71 in FIG. rotation around a vertical axis V7. The progression of the carriage 7 along the rail 5 is achieved by the cooperation between the central pinion gear 73 and a notched strap 17 fixed to each end of the door 4 and extending along one of the tracks 51 of the rail 5 The carriage 7 also comprises two lateral rollers 75, visible in FIG. 5, supper-Les by the body part 72 and surrounding the central pinion gear 73. The rollers 75 press the strap 17 against the pinion 73 and provide a number of teeth engaged enough to ensure the strength and durability of the teeth of the strap or pinion. The tension is predefinie and takes place automatically at mounting the ends of the strap 17, either by screwing with a torque control, or by release of a spring and blocking. To ensure the displacement of the rear part of the door 4, the carriage 7 is mounted on a depressing arm 9. The arm 9 comprises a main amount 91, from which extend an upper branch 93 and a lower branch 95 substantially perpendicular to the main post 91. The arm 9 is pivotally mounted on the body 2 about a vertical axis V9. A sloping sector 97 is positioned in the vicinity of the junction between the main upright 91 and the lower branch 95 of the arm 9. This slit sector 97 is integral in rotation with the arm 9.

Le mouvement de dehanchement de la porte 4 est provoque par la rotation du bras 9 autour de 1'axe V9, entrainant un decalage du chariot 7 et de la partie arriere de la porte 4 vers 1'exterieur du vehicule 1. The displacement of the door 4 is caused by the rotation of the arm 9 around the axis V9, causing a shift of the carriage 7 and the rear part of the door 4 towards the outside of the vehicle 1.

Le vehicule 1 comprend un dispositif de guidage de la porte 4 lors de son mouvement de dehanchement ainsi qu'un dispositif d'immobilisation du bras 9 en position deployee vers 1'exterieur de la caisse 2. Ces dispositifs, non representes sur les figures, peuvent etre realises par tout moyen adapte. Un moteur 11 est fixe sur le montant principal 91 du bras 9. L'arbre de sortie 111 du moteur 11 entraine en rotation un pignon dente 113. Le pignon 113 engrene sur une couronne den-tee 81, solidaire d'un differentiel 82. The vehicle 1 comprises a device for guiding the door 4 during its displacement movement and a device for immobilizing the arm 9 in the deployed position towards the outside of the body 2. These devices, not shown in the figures, can be achieved by any suitable means. A motor 11 is fixed on the main post 91 of the arm 9. The output shaft 111 of the motor 11 rotates a toothed gear 113. The pinion 113 meshes with a den-tee crown 81, integral with a differential 82.

Le differentiel 82 comprend deux pignons coniques planetaires 83, ainsi que deux pignons coniques satellites 85 engrenant avec les pignons planetaires 83. L'ensemble des pignons 113, 81, 83 et 85, ainsi que le porte-satellite 86 du differentiel 82, sont contenus dans un boitier 8 formant une cavite etanche. Le boitier 8 est supporte par le montant principal 91 du bras 9 et permet le graissage des composants du differentiel 82. Chacun des pignons planetaires 83 est relie a un arbre de sortie qui s'etend a 1'exterieur du boitier 8 vers, respectivement, chacune des branches 93 et 95 du bras 9. Un premier arbre 87 de sortie du differentiel 82, solidaire d'un pignon planetaire 83, s'etend en direction de la branche inferieure 95 du bras 9, sur laquelle it est monte a pivotement autour d'un axe V87 parallele a 1'axe V9. L arbre 87 porte un pignon crante de sortie 871 qui engrene sur le secteur dente 97 du bras 9. Ainsi, la rotation de 1'arbre 87 en sortie du differentiel 82 permet, au moyen du pignon crante 871, d'entrainer en rotation le secteur dente 97 dans le sens de la fleche R1 a la figure 4. The differential 82 comprises two planetary conical gears 83, as well as two satellite conical gears 85 meshing with the planetary gears 83. The set of gears 113, 81, 83 and 85, as well as the carrier 86 of the differential 82, are contained in a housing 8 forming a sealed cavity. The casing 8 is supported by the main post 91 of the arm 9 and allows the components of the differential 82 to be lubricated. Each of the planetary gears 83 is connected to an output shaft which extends outside the casing 8 towards, respectively, each of the branches 93 and 95 of the arm 9. A first output shaft 87 of the differential 82, integral with a planet gear 83, extends towards the lower branch 95 of the arm 9, on which it is pivotally mounted around an axis V87 parallel to the axis V9. The shaft 87 carries an output pinion 871 which meshes with the tooth sector 97 of the arm 9. Thus, the rotation of the shaft 87 at the outlet of the differential 82 makes it possible, by means of the pinion gear 871, to drive in rotation the sector dente 97 in the direction of the arrow R1 in Figure 4.

Le secteur dente 97 etant solidaire en rotation du bras 9, le bras 9 est alors egalement entraine en rotation autour de 1'axe V9, comme represents par la fleche R2 a la figure 4. Cette rotation du bras 9 provoque le mouvement de dehanchement de la porte 4. Le deuxieme arbre 89 de sortie du differentiel 82 est solidaire de 1'autre pignon planetaire 83 et s'etend en direction de la branche superieure 93 du bras 9, sur laquelle it est monte a pivotement autour d'un axe V89 parallele a 1'axe V9. L'arbre 89 porte un deuxieme pignon crante de sortie 891 qui est solidaire en rotation d'un pignon crante 15 d'entrainement du chariot 7. Les pignons 891 et 15 sont relies au moyen d'une courroie crantee de transmission 13. Le pignon crante 15 est monte pivotant sur la branche superieure 93 du bras 9 autour de 1'axe V7. La rotation du pignon crante 15 entraine en rotation la broche 71 et le pignon crante central 73 du chariot 7. Ainsi, la rotation de 1'arbre planetaire 89 en sortie du differentiel 82 actionne la rotation du pignon crante central 73 du chariot 7 et donc la progression du chariot 7 le long du rail 5, par cooperation du pignon 73 avec la sangle crantee 17. La presence du differentiel 82 en sortie du moteur 11 permet donc d'obtenir un moteur presentant deux sorties differentielles, chaque sortie pouvant avantageusement etre utilisee pour actionner selectivement une phase du mouvement de la porte 4. Dans le mode de realisation decrit, 1'arbre de sortie 87 est utilise pour actionner de maniere selective le mouvement de dehanchement de la porte 4, alors que le deuxieme arbre de sortie 89 est utilise pour actionner le mouvement de coulissement de la porte. Chacune des phases de dehanchement et de coulissement ayant des caracteristiques cinematiques differentes, une reduction est necessaire en sortie des arbres 87 et 89, de maniere a obtenir des valeurs de couple et de vitesse adaptees pour chacune des phases. Pour la phase de dehanchement, cette reduction est assuree au moyen de 1'engrenage mettant en jeu le pignon crante 871 et le secteur dente 97, dont les dimensions sont choisies de maniere a fournir un couple relativement important et une vitesse relativement lente, caracteristiques du mouvement de dehanchement du bras 9. Pour la phase de coulissement, la reduction est assuree au moyen des pignons crantes 891 et 15 relies par la courroie de transmission 13, dont les dimensions sont choisies de maniere a fournir un couple relativement faible et une vitesse relativement elevee, caracteristiques du mouvement de coulissement de la porte 4. Tout autre systeme de differentiel peut egalement realiser cette fonction. Une gestion electronique du moteur 11 peut egalement titre utilisee pour ajuster la puissance fournie en fonction de la phase de travail. Les deux sorties differentielles du moteur 11 peuvent titre utilisees successivement sans recouvrement des phases de dehanchement et de coulissement. Dans ce cas, a chaque instant, un seul arbre planetaire 87 ou 89 est en mouvement, 1'autre etant immobile. En variante, it est possible de realiser un synchronisme avec recouvrement des phases de dehanchement et de coulissement. En effet, le differentiel autorise le ralentissement de 1'une des sorties alors que 1'autre sortie demarre et accelere. Cela permet de gommer le raccordement visuel entre les phases successives du mouvement de la porte 4. Since the slot sector 97 is integral in rotation with the arm 9, the arm 9 is also rotated about the axis V9, as represented by the arrow R2 in FIG. 4. This rotation of the arm 9 causes the movement of the the door 4. The second output shaft 89 of the differential 82 is integral with the other planet gear 83 and extends towards the upper branch 93 of the arm 9, on which it is pivotally mounted about an axis V89 parallel to axis V9. The shaft 89 carries a second output pinion gear 891 which is rotationally integral with a driving pinion 15 for driving the carriage 7. The gears 891 and 15 are connected by means of a toothed transmission belt 13. The pinion 15 is pivotally mounted on the upper branch 93 of the arm 9 around the axis V7. The rotation of the pinion gear 15 rotates the pin 71 and the central pinion 73 of the carriage 7. Thus, the rotation of the planet shaft 89 at the output of the differential 82 actuates the rotation of the central pinion gear 73 of the carriage 7 and therefore the progression of the carriage 7 along the rail 5, by cooperation of the pinion 73 with the notched strap 17. The presence of the differential 82 at the output of the motor 11 thus makes it possible to obtain a motor having two differential outputs, each output being advantageously used to selectively actuate a phase of the movement of the door 4. In the embodiment described, the output shaft 87 is used to selectively actuate the depressing movement of the door 4, while the second output shaft 89 is uses to actuate the sliding movement of the door. Each of the dehalation and sliding phases having different kinematic characteristics, a reduction is necessary at the output of the shafts 87 and 89, in order to obtain torque and speed values adapted for each of the phases. For the dehulling phase, this reduction is ensured by means of the gearing involving the pinion gear 871 and the tooth sector 97, the dimensions of which are chosen so as to provide a relatively large torque and a relatively slow speed, characteristics of the de-arming movement of the arm 9. For the sliding phase, the reduction is ensured by means of the pinion gears 891 and 15 connected by the transmission belt 13, the dimensions of which are chosen so as to provide a relatively low torque and a relatively fast speed. High, characteristics of the sliding movement of the door 4. Any other differential system can also perform this function. An electronic management of the engine 11 can also be used to adjust the power supplied according to the working phase. The two differential outputs of the motor 11 may be used successively without overlap of the phases of dehorning and sliding. In this case, at each instant, a single planet tree 87 or 89 is in motion, the other being motionless. Alternatively, it is possible to achieve a synchronism with overlap of the phases of dehangement and sliding. Indeed, the differential allows the slowing down of one of the outputs while the other output starts and accelerates. This makes it possible to erase the visual connection between the successive phases of the movement of the door 4.

Selon 1'environnement d'implantation du bras de dehanchement 9, plusieurs dispositions du moteur 11, du boitier 8, du dispositif d'entrainement en dehanchement du bras 9 et du dispositif d'entrainement en coulissement du chariot 7 peuvent titre envisagees. Depending on the environment of implantation of the depressing arm 9, several provisions of the motor 11, the housing 8, the training device in swinging of the arm 9 and the sliding drive device of the carriage 7 may be considered.

Dans le deuxieme mode de realisation represents a la figure 6, le differentiel 82 est regroups avec le dispositif d'entralnement en rotation du bras 9, au voisinage de la branche inferieure 95 du bras 97. Cette configuration permet de gagner en compacite. De plus, les pignons 871 et 95 assurant la reduction en sortie de 1'arbre planetaire 87 peuvent avantageusement etre inseres dans la cavite etanche du boitier 8, pour permettre leur graissage. In the second embodiment shown in FIG. 6, the differential 82 is combined with the device for rotating the arm 9 in the vicinity of the lower branch 95 of the arm 97. This configuration makes it possible to gain in compactness. In addition, the pinions 871 and 95 ensuring the reduction at the output of the planet shaft 87 may advantageously be inserted into the sealed cavity of the housing 8, to allow their lubrication.

Dans le troisieme mode de realisation represents a la figure 7, le differentiel 82 est regroups non seulement avec le dispositif d'entralnement en rotation du bras 9, mais egalement avec le dispositif d'entrainement en coulissement du chariot 7, au voisinage de la branche inferieure 95 du bras 9. Cette configuration apporte un gain supplementaire en compacite par rapport aux deux modes de realisation precedents. Selon une variante non representee de 1'invention, la courroie de transmission 13 peut etre remplacee par un engrenage mettant en jeu les pignons 891 et 15. Dans la configuration de la figure 7, ces pignons peuvent avantageusement etre inseres dans la cavite etanche formee par le boitier 8, le graissage etant alors possible. D'autres dispositions peuvent encore etre envisagees. In the third embodiment shown in FIG. 7, the differential 82 is grouped not only with the device for rotating the arm 9, but also with the sliding drive of the carriage 7, in the vicinity of the branch. lower arm 95 9. This configuration provides an additional gain in compactness over the previous two embodiments. According to an unrepresented variant of the invention, the transmission belt 13 can be replaced by a gear involving the gears 891 and 15. In the configuration of FIG. 7, these gears can advantageously be inserted into the sealed cavity formed by the case 8, the lubrication being then possible. Other provisions may still be considered.

Notamment, 1'entrainement en rotation du bras 9 peut s'effectuer indifferemment sur ses parties superieures ou inferieures, alors que 1'entralnement en coulissement du chariot 7 peut etre realise indifferemment dans la partie superieure ou inferieure du bras 9, ou dans une zone intermediaire entre les branches superieure 93 et inferieure 95 du bras 9. In particular, the rotational drive of the arm 9 can be carried out indifferently on its upper or lower parts, whereas the sliding centralization of the carriage 7 can be carried out indifferently in the upper or lower part of the arm 9, or in a zone intermediate between the upper branches 93 and lower 95 of the arm 9.

Claims

Motor vehicle (1), of the type comprising a structure (2) provided with an opening (3), a side door (4) adapted to close the opening (3), the door being slidably mounted relative to the structure through at least one support and guide assembly (6) comprising a rail (5) integral with the door and a carriage (7) for sliding along the rail, the carriage being mounted on an arm 9) pivotally mounted about an axis (V9) on the structure, the displacement of this arm between a position folded along the structure and a position deployed to the outside of the structure at the beginning of opening of the door making it possible to move the door towards the outside of the structure with a view to its sliding, characterized in that it comprises a motor (11) fixed on the arm (9) in the vicinity of its axis (V9) of pivoting , the motor attacking a differential (82) comprising two output shafts (87, 89), respectively provided with a first (871) and a second (891) output gear, the first output gear (871) being connected to a device for rotating the arm (9) about its pivot axis (V9), while the second gear outlet (891) is connected to a sliding drive of the door (4) relative to the structure (2) by sliding the carriage (7) along the rail (5).

2. Vehicle according to claim 1, characterized in that the device for rotating the arm (9) comprises a dente sector (97) integral with the arm in the vicinity of its pivot axis (V9), said first output gear (871) being ridge and meshing on the sector dente (97).

3. Vehicle according to any one of the preceding claims, characterized in that the sliding drive device of the door (4) comprises a pinion (15) for rotating the carriage (7), said pinion drive (15) being mounted on the arm (9) and relict said second output gear (891) which drives it in rotation.

4. Vehicle according to claim 3, characterized in that said drive pinion (15) of the carriage (7) is relict said second output gear (891) by means of a belt (13) transmission.

5. Vehicle according to claim 3, characterized in that said drive pinion (15) of the carriage (7) is relict said second output gear (891) forming a gear.

6. Vehicle according to any one of claims 3 to 5, characterized in that the carriage (7) comprises a central pinion gear (73) integral in rotation with said drive pinion (15) and adapted to cooperate with a notched strap. (17) attached to each end of the door (4) in the rail (5).

7. Vehicle according to any one of the preceding claims, characterized in that the differential (82) is positioned on the arm (9) while being grouped with the device for rotating the arm.

8. Vehicle according to any one of the preceding claims, characterized in that the sliding drive device of the door (4) is positioned on the arm (9) being gathers with the differential (82).

9. Vehicle according to any of the preceding claims, characterized in that said output shaft (87, 89) of the differential (82) are not moving at the same time.

10. Vehicle according to any one of the preceding claims, characterized in that said output shaft (87, 89) of the differential (82) are simultaneously moving at the end of the rotational movement of the arm (9) about its axis. (V9) pivoting and at the beginning of the sliding of the door (4) relative to the structure (2).