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EP3898386A1 - Front rocker panel structure reinforcement with integrated jack support function - Google Patents

Front rocker panel structure reinforcement with integrated jack support function

Info

Publication number
EP3898386A1
EP3898386A1 EP19842587.8A EP19842587A EP3898386A1 EP 3898386 A1 EP3898386 A1 EP 3898386A1 EP 19842587 A EP19842587 A EP 19842587A EP 3898386 A1 EP3898386 A1 EP 3898386A1
Authority
EP
European Patent Office
Prior art keywords
wall
rocker panel
vehicle according
front leg
reinforcement
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Withdrawn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
EP19842587.8A
Other languages
German (de)
French (fr)
Inventor
Laurent RIVIERRE
Lionel SAINT DENIS
Jean Christophe GALLERNE
Bruno Malois
Peter REGHEM
Sebastien CHOPARD
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.)
Stellantis Auto SAS
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3898386A1 publication Critical patent/EP3898386A1/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Withdrawn legal-status Critical Current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
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/04—Door pillars ; windshield pillars
    • 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
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B62D27/023—Assembly of structural joints

Definitions

  • the invention relates to the field of motor vehicles, and more particularly to the strengthening of the front structure of motor vehicles in the event of frontal impacts.
  • connection reinforcements formed from two elements. elongated extending transversely to the direction of extension of the side members and between which is fixed a jack support.
  • the object of the invention is to improve the strengthening of the front part of the underbody structure of motor vehicles while limiting the increase in mass, and this in a simple and economical manner.
  • the invention relates to a motor vehicle comprising, on each lateral side a front foot with an elbow profile; a longitudinal underbody connected to the front leg; a reinforcement disposed in the front foot and extending longitudinally from a front wall of said foot to the bottom of the body; remarkable in that the reinforcement is a deep drawing comprising a longitudinal main wall inclined by less than 30 ° with respect to the vertical, a lower edge opposite a rebate of the lower junction of the front leg and the rocker panel , and an upper edge resting on the upper walls of the front leg and the rocker panel.
  • G inclination of the main wall relative to the vertical is greater than 15 °.
  • the upper edge of the stamp comprises a longitudinal support wall on the upper walls of the front leg and the rocker panel, said longitudinal wall forming a square with the main wall.
  • the bracket forms a hollow directed laterally towards the interior of said vehicle.
  • the stamped part comprises a tab projecting downward from the lower edge, said tab being housed in the lower junction rebate of the front leg and the rocker panel, so as to serve as a zone of a vehicle lifting jack.
  • the tab is located on a front half of the stamping.
  • the stamping comprises a front wall for pressing on the front wall of the front leg, said front wall forming a square with the main wall.
  • the front support wall on the front wall of the front foot forms a square with the longitudinal support wall on the upper walls of the front foot and the rocker panel.
  • the stamped part comprises a rear wall for bearing on a vertical wall of the rocker panel, said rear wall forming a square with the main wall and comprises a leg for supporting on said vertical wall of the underbody.
  • the main wall comprises several openings intended to lighten the stamping.
  • the measures of the invention are advantageous in that the reinforcement forms a one-piece element easily achievable by stamping and ensuring optimized reinforcement insofar as it extends continuously and essentially plane between the lower and upper walls of the front leg and underbody. Besides making it possible to counter the bending movements of the front part in the event of a severe frontal impact, it can also serve as a jack support.
  • This invention is all the more interesting that the pooling of the reinforcement function and the lifting function on a single piece makes it possible to adjust the addition of mass to what is necessary.
  • FIG 1 shows a perspective view of a lower portion, with a reinforcement, of a front structure of a vehicle according to the invention.
  • FIG 2 shows a view of a cross section II-II of the lower portion of the front structure of Figure 1.
  • FIG 3 illustrates a view of a cross section III-III of the lower portion of the front structure of Figure 1.
  • FIG. 1 is an enlarged view of the front part of the reinforcement of the lower portion of the front structure of FIG. 1.
  • FIG. 1 is an enlarged view of the rear part of the reinforcement of the lower portion of the front structure of FIG. 1.
  • FIG. 1 is a perspective view of a lower portion of the front structure 1 of a motor vehicle.
  • this portion 1 corresponds to the right side of the vehicle (not shown in its entirety), it comprises a front leg 3, with an angled profile, to which the rocker panel 5 is connected, and also a reinforcement 7 of frontal impact.
  • This reinforcement 7 is in fact placed in the front leg 3 and extends longitudinally from a front wall 9 of the latter as far as the rocker panel 5.
  • It is in particular formed of a perforated longitudinal main wall 11, of an upper edge 13 and a lower edge 15.
  • the main wall 11 is inclined by less than 30 ° relative to the vertical, and advantageously by more than 15 °.
  • the upper edge 13 is supported on the upper walls 17 of the front leg 3 and the rocker panel 5, the connection between the parts being produced by welds of electrical resistance.
  • the lower edge 15 is in turn positioned vis-à-vis a lower junction rebate 19 of the front leg 3 and the rocker panel 5, and it in particular comprises a tab 21 which projects downwards.
  • This tab 21 is in fact located on a front part of the reinforcement 7 and is housed in the lower joining rebate 19 of the front leg and the rocker panel, so as to serve as a support zone for a lifting jack (not represented).
  • Figure 2 is a view of a cross section of the lower portion of the front structure 1 of Figure 1 along the axis II- IL
  • This view shows that the upper edge 13 of the reinforcement 7 further comprises a longitudinal wall of support 23 on the upper walls 17 of the front leg 3 and of the rocker panel 5.
  • This longitudinal support wall 23 in particular forms a square with the main longitudinal wall 11 of the reinforcement 7, which constitutes a hollow directed laterally towards the interior of the vehicle.
  • the connection of the longitudinal support wall 23 with the upper walls 17 of the front leg 3 and the rocker panel 5 has the function, during a severe frontal impact, of making it possible to counter the bending movement of the front structure 1 of the vehicle automobile.
  • the tab 21 which acts as a jack support 21 and which is arranged projecting from the lower edge 15 of the reinforcement 7 on the lower junction rebate 19 of the front leg 3 and of the bottom body 5.
  • a hole 25 for fixing the jack (not shown) is positioned at the bottom of this tab 21, this hole 25 also serves to fix a hook for clamping during road, rail or sea transport.
  • Figure 3 is a view of a cross section of the front structure 1 of Figure 1 along the axis III-III. This section is located in the second half of the reinforcement 7, at the level of an opening 27 of the longitudinal main wall 11.
  • several openings are distributed over the main wall 11 of the reinforcement 7 (FIG. 1), they are in particular intended mainly to lighten it but also to allow the welding tongs to be left during the fitting of the different parts.
  • FIG 4 shows an enlarged view of the front part of the reinforcement 7 of the lower portion of the front structure 1 of Figure 1.
  • This front part of the reinforcement 7 comprises a front support wall 29 on the front wall 9 of the front foot 3.
  • This support wall 29 forms in particular a square with the main longitudinal wall 11 of the reinforcement 7, but also a square with the longitudinal support wall 23 on the upper walls 17 of the front leg 3 and the rocker panel 5 During a severe frontal impact, the connection of the support wall 29 with the front wall 9 of the front foot 3 has the function of resuming the support of the front foot 3 at the moment of the pushing of the front wheel (not shown) of the vehicle on the bottom of the front leg 3.
  • FIG. 5 represents an enlarged view of the rear part of the reinforcement of the lower portion of the front structure 1 of FIG. 1.
  • This rear part of the reinforcement 7 is in consists of a rear support wall 31 on a vertical wall 33 of the rocker panel 5, more precisely of the rocker panel reinforcement 5, the connection between the parts being produced by welds of electrical resistance.
  • the rear support wall 31 in fact forms a square with the main longitudinal wall 11 of the reinforcement 7, and it is also provided with a support lug 35 located on the vertical wall 33 of the reinforcement underbody 5.
  • the connection of the rear support wall 31 with the vertical wall 33 of the underbody reinforcement 5a like the longitudinal support wall 11 of the reinforcement 7, for its function to counter the bending movement of the front structure 1 of the motor vehicle.
  • the reinforcements located in the lower portion of the front structure of a vehicle according to the invention have the advantage of being in a single piece, mainly vertical, extending between the lower and upper walls of the rocker panel and the front leg, in this case at the lower junction rebate and the upper walls of said rocker panel and said front leg.
  • the reinforcement provides, in addition to the reinforcement function, the role of jack support.
  • This invention is even more advantageous in that these integrated jack support reinforcements, because of their low mass delta, can in fact also adapt as much in the environment of thermal vehicles as of electric vehicles in order to provide the service with severe frontal impact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a motor vehicle comprising on each lateral side a front pillar (3); a longitudinal rocker panel (5) connected to the front pillar (3); a reinforcement (7) arranged in the front pillar (3) and extending longitudinally from a front wall (9) of said front pillar (3) into the rocker panel (5). This reinforcement (7) is in particular a stamped part (7) that comprises a longitudinal main wall (11) at an angle of less than 30° with respect to the vertical, a lower edge (15) opposite a lower joining rabbet (19) of the front pillar (3) and the rocker panel (5) and an upper edge (13) bearing on upper walls (17) of the front pillar and the rocker panel.

Description

RENFORT DE STRUCTURE AVANT DE BAS DE CAISSE AVEC FONCTION APPUI CRIC INTEGREE FRONT BODY STRUCTURE REINFORCEMENT WITH INTEGRATED JACK SUPPORT FUNCTION
La présente invention revendique la priorité de la demande française 1873743 déposée le 21 décembre 2018 dont le contenu (texte, dessins et revendications) est ici incorporé par référence. The present invention claims priority from French application 1873743 filed on December 21, 2018 whose content (text, drawings and claims) is here incorporated by reference.
L’invention a trait au domaine des véhicules automobiles, et plus particulièrement au renforcement de la structure avant des véhicules automobiles en cas de chocs frontaux. The invention relates to the field of motor vehicles, and more particularly to the strengthening of the front structure of motor vehicles in the event of frontal impacts.
Pour consolider la structure avant d’un véhicule automobile lors de chocs frontaux sévérisés il est courant de renforcer l’épaisseur des pièces de cette structure, ou de rajouter des pièces métalliques, tenant lieu de renforts, de chaque côté du véhicule au niveau de la jonction entre le pied avant et le bas de caisse. To consolidate the front structure of a motor vehicle during severe frontal impacts, it is common to reinforce the thickness of the parts of this structure, or to add metal parts, acting as reinforcements, on each side of the vehicle at the level of the junction between the front leg and the rocker panel.
Ces pièces supplémentaires de renfort sont en principe localisées à proximité de de l’appui cric avant et dans certains cas associées directement à celui-ci, tel est le cas notamment dans le document brevet publié FR2922508 qui divulgue des renforts de liaison formés de deux éléments allongés s’étendant transversalement par rapport à la direction d’extension des longerons et entre lesquels est fixé un appui cric. These additional reinforcing parts are in principle located near the front jack support and in certain cases associated directly with it, such is the case in particular in the published patent document FR2922508 which discloses connection reinforcements formed from two elements. elongated extending transversely to the direction of extension of the side members and between which is fixed a jack support.
Bien que ces pièces supplémentaires, dans leur ensemble, permettent de renforcer la portion inférieure de la structure avant des véhicules automobiles, il n’en est pas moins vrai qu’elles présentent l’inconvénient de rajouter de la masse au véhicule ce qui est contraignant. Although these additional parts, as a whole, make it possible to reinforce the lower portion of the front structure of motor vehicles, it is nonetheless true that they have the drawback of adding mass to the vehicle, which is restrictive. .
L’invention a pour objet d’améliorer le renforcement de la partie avant de la structure de bas de caisse des véhicules automobiles tout en limitant l’augmentation de masse, et ceci de manière simple à mettre en œuvre et économique. The object of the invention is to improve the strengthening of the front part of the underbody structure of motor vehicles while limiting the increase in mass, and this in a simple and economical manner.
A cet effet, l’invention a pour objet un véhicule automobile comprenant, de chaque côté latéral un pied avant avec un profil coudé ; un bas de caisse longitudinal relié au pied avant ; un renfort disposé dans le pied avant et s’étendant longitudinalement depuis une paroi avant dudit pied jusque dans le bas de caisse ; remarquable en ce que le renfort est un embouti comprenant une paroi principale longitudinale inclinée de moins de 30° par rapport à la verticale, un bord inférieur en vis-à-vis d’une feuillure de jonction inférieure du pied avant et du bas de caisse, et un bord supérieur en appui sur des parois supérieures du pied avant et du bas de caisse. Selon un mode avantageux de l’invention, G inclinaison de la paroi principale par rapport à la verticale est supérieure à 15°. To this end, the invention relates to a motor vehicle comprising, on each lateral side a front foot with an elbow profile; a longitudinal underbody connected to the front leg; a reinforcement disposed in the front foot and extending longitudinally from a front wall of said foot to the bottom of the body; remarkable in that the reinforcement is a deep drawing comprising a longitudinal main wall inclined by less than 30 ° with respect to the vertical, a lower edge opposite a rebate of the lower junction of the front leg and the rocker panel , and an upper edge resting on the upper walls of the front leg and the rocker panel. According to an advantageous embodiment of the invention, G inclination of the main wall relative to the vertical is greater than 15 °.
Selon un mode avantageux de l’invention, le bord supérieur de l’embouti comprend une paroi longitudinale d’appui sur les parois supérieures du pied avant et du bas de caisse, ladite paroi longitudinale formant une équerre avec la paroi principale. According to an advantageous embodiment of the invention, the upper edge of the stamp comprises a longitudinal support wall on the upper walls of the front leg and the rocker panel, said longitudinal wall forming a square with the main wall.
Selon un mode avantageux de l’invention, l’équerre forme un creux dirigé latéralement vers l’intérieur dudit véhicule. According to an advantageous embodiment of the invention, the bracket forms a hollow directed laterally towards the interior of said vehicle.
Selon un mode avantageux de l’invention, l’embouti comprend une patte faisant saillie vers le bas depuis le bord inférieur, ladite patte étant logée dans la feuillure de jonction inférieure du pied avant et du bas de caisse, de manière à servir de zone d’appui d’un cric de levage du véhicule. According to an advantageous embodiment of the invention, the stamped part comprises a tab projecting downward from the lower edge, said tab being housed in the lower junction rebate of the front leg and the rocker panel, so as to serve as a zone of a vehicle lifting jack.
Selon un mode avantageux de l’invention, la patte est située sur une moitié avant de l’embouti. According to an advantageous embodiment of the invention, the tab is located on a front half of the stamping.
Selon un mode avantageux de l’invention, l’embouti comprend une paroi avant d’appui sur la paroi avant du pied avant, ladite paroi avant formant une équerre avec la paroi principale. According to an advantageous embodiment of the invention, the stamping comprises a front wall for pressing on the front wall of the front leg, said front wall forming a square with the main wall.
Selon un mode avantageux de l’invention, la paroi avant d’appui sur la paroi avant du pied avant forme une équerre avec la paroi longitudinale d’appui sur les parois supérieures du pied avant et du bas de caisse. According to an advantageous embodiment of the invention, the front support wall on the front wall of the front foot forms a square with the longitudinal support wall on the upper walls of the front foot and the rocker panel.
Selon un mode avantageux de l’invention, l’embouti comprend une paroi arrière d’appui sur une paroi verticale du bas de caisse, ladite paroi arrière formant une équerre avec la paroi principale et comprend une patte d’appui sur ladite paroi verticale du bas de caisse. According to an advantageous embodiment of the invention, the stamped part comprises a rear wall for bearing on a vertical wall of the rocker panel, said rear wall forming a square with the main wall and comprises a leg for supporting on said vertical wall of the underbody.
Selon un mode avantageux de l’invention, la paroi principale comprend plusieurs ajours destinés à alléger l’embouti. According to an advantageous embodiment of the invention, the main wall comprises several openings intended to lighten the stamping.
Les mesures de l’invention sont intéressantes en ce que le renfort forme un élément monobloc facilement réalisable par emboutissage et assurant un renforcement optimisé dans la mesure où il s’étend de manière continue et essentiellement plane entre les parois inférieure et supérieure du pied avant et du bas de caisse. Outre le fait de permettre de contrer les mouvements de flexion de la partie avant en cas de choc frontal sévérisé, il peut également servir d’appui cric. Cette invention est d’autant plus intéressante que la mutualisation de la fonction renfort et de la fonction levage sur une seule et même pièce permet d’ajuster l’ajout de masse au juste nécessaire. The measures of the invention are advantageous in that the reinforcement forms a one-piece element easily achievable by stamping and ensuring optimized reinforcement insofar as it extends continuously and essentially plane between the lower and upper walls of the front leg and underbody. Besides making it possible to counter the bending movements of the front part in the event of a severe frontal impact, it can also serve as a jack support. This invention is all the more interesting that the pooling of the reinforcement function and the lifting function on a single piece makes it possible to adjust the addition of mass to what is necessary.
D’autres caractéristiques et avantages de la présente invention seront mieux compris à l’aide de la description et des dessins parmi lesquels : Other characteristics and advantages of the present invention will be better understood with the aid of the description and the drawings, among which:
[Fig 1] représente une vue en perspective d’une portion inférieure, avec un renfort, d’une structure avant d’un véhicule selon l’invention. [Fig 1] shows a perspective view of a lower portion, with a reinforcement, of a front structure of a vehicle according to the invention.
[Fig 2] montre une vue d’une coupe transversale II-II de la portion inférieure de la structure avant de la figure 1. [Fig 2] shows a view of a cross section II-II of the lower portion of the front structure of Figure 1.
[Fig 3] illustre une vue d’une coupe transversale III- III de la portion inférieure de la structure avant de la figure 1. [Fig 3] illustrates a view of a cross section III-III of the lower portion of the front structure of Figure 1.
[Fig 4] est une vue élargie de la partie avant du renfort de la portion inférieure de la structure avant de la figure 1. [Fig 4] is an enlarged view of the front part of the reinforcement of the lower portion of the front structure of FIG. 1.
[Fig 5] est une vue élargie de la partie arrière du renfort de la portion inférieure de la structure avant de la figure 1. [Fig 5] is an enlarged view of the rear part of the reinforcement of the lower portion of the front structure of FIG. 1.
La figure 1 est une vue en perspective d’une portion inférieure de la structure avant 1 d’un véhicule automobile. En l’occurrence cette portion 1 correspond au côté droit du véhicule (non représenté en entier), elle comprend un pied avant 3, avec un profil coudé, auquel est relié le bas de caisse 5, et également un renfort 7 de choc frontal. Ce renfort 7 est en fait disposé dans le pied avant 3 et s’étend longitudinalement depuis une paroi avant 9 de celui-ci jusque dans le bas de caisse 5. Il est en particulier formé d’une paroi principale longitudinale 11 ajourée, d’un bord supérieur 13 et d’un bord inférieur 15. La paroi principale 11 est inclinée de moins de 30° par rapport à la verticale, et avantageusement de plus de 15°. Le bord supérieur 13 est en appui sur des parois supérieures 17 du pied avant 3 et du bas de caisse 5, la liaison entre les pièces étant réalisée par des points de soudure à résistance électrique. Le bord inférieur 15 est quant à lui positionné en vis-à-vis d’une feuillure de jonction inférieure 19 du pied avant 3 et du bas de caisse 5, et il comprend notamment une patte 21 qui fait saillie vers le bas. Cette patte 21 est en fait située sur une partie avant du renfort 7 et est logée dans la feuillure de jonction inférieure 19 du pied avant et du bas de caisse, de façon à servir de zone d’appui d’un cric de levage (non représenté). La figure 2 est une vue d’une coupe transversale de la portion inférieure de la structure avant 1 de la figure 1 selon l’axe II- IL Cette vue montre que le bord supérieur 13 du renfort 7 comprend en outre une paroi longitudinale d’appui 23 sur les parois supérieures 17 du pied avant 3 et du bas de caisse 5. Cette paroi longitudinale d’appui 23 forme notamment une équerre avec la paroi principale longitudinale 11 du renfort 7, qui constitue un creux dirigé latéralement vers l’intérieur du véhicule. La liaison de la paroi longitudinale d’appui 23 avec les parois supérieures 17 du pied avant 3 et du bas de caisse 5 a pour fonction lors d’un choc frontal sévérisé de permettre de contrer le mouvement de flexion de la structure avant 1 du véhicule automobile. Figure 1 is a perspective view of a lower portion of the front structure 1 of a motor vehicle. In this case, this portion 1 corresponds to the right side of the vehicle (not shown in its entirety), it comprises a front leg 3, with an angled profile, to which the rocker panel 5 is connected, and also a reinforcement 7 of frontal impact. This reinforcement 7 is in fact placed in the front leg 3 and extends longitudinally from a front wall 9 of the latter as far as the rocker panel 5. It is in particular formed of a perforated longitudinal main wall 11, of an upper edge 13 and a lower edge 15. The main wall 11 is inclined by less than 30 ° relative to the vertical, and advantageously by more than 15 °. The upper edge 13 is supported on the upper walls 17 of the front leg 3 and the rocker panel 5, the connection between the parts being produced by welds of electrical resistance. The lower edge 15 is in turn positioned vis-à-vis a lower junction rebate 19 of the front leg 3 and the rocker panel 5, and it in particular comprises a tab 21 which projects downwards. This tab 21 is in fact located on a front part of the reinforcement 7 and is housed in the lower joining rebate 19 of the front leg and the rocker panel, so as to serve as a support zone for a lifting jack (not represented). Figure 2 is a view of a cross section of the lower portion of the front structure 1 of Figure 1 along the axis II- IL This view shows that the upper edge 13 of the reinforcement 7 further comprises a longitudinal wall of support 23 on the upper walls 17 of the front leg 3 and of the rocker panel 5. This longitudinal support wall 23 in particular forms a square with the main longitudinal wall 11 of the reinforcement 7, which constitutes a hollow directed laterally towards the interior of the vehicle. The connection of the longitudinal support wall 23 with the upper walls 17 of the front leg 3 and the rocker panel 5 has the function, during a severe frontal impact, of making it possible to counter the bending movement of the front structure 1 of the vehicle automobile.
Sur cette figure 2, il est également possible d’observer la patte 21 qui fait fonction d’appui cric 21 et qui est agencée en saillie du bord inférieur 15 du renfort 7 sur la feuillure de jonction inférieure 19 du pied avant 3 et du bas de caisse 5. Un trou 25 de fixation du cric (non représenté) est positionné dans le bas de cette patte 21, ce trou 25 sert également à fixer un crochet pour le bridage lors du transport routier, ferroviaire ou maritime. In this FIG. 2, it is also possible to observe the tab 21 which acts as a jack support 21 and which is arranged projecting from the lower edge 15 of the reinforcement 7 on the lower junction rebate 19 of the front leg 3 and of the bottom body 5. A hole 25 for fixing the jack (not shown) is positioned at the bottom of this tab 21, this hole 25 also serves to fix a hook for clamping during road, rail or sea transport.
La figure 3 est une vue d’une coupe transversale de la structure avant 1 de la figure 1 selon l’axe III- III. Cette coupe se situe dans la deuxième moitié du renfort 7, au niveau d’un ajour 27 de la paroi principale longitudinale 11. Avantageusement, plusieurs ajours sont répartis sur la paroi principale 11 du renfort 7 (figure 1), ils sont en particulier destinés principalement à l’alléger mais également à permettre de laisser les pinces de soudure lors du ferrage des différentes pièces. Figure 3 is a view of a cross section of the front structure 1 of Figure 1 along the axis III-III. This section is located in the second half of the reinforcement 7, at the level of an opening 27 of the longitudinal main wall 11. Advantageously, several openings are distributed over the main wall 11 of the reinforcement 7 (FIG. 1), they are in particular intended mainly to lighten it but also to allow the welding tongs to be left during the fitting of the different parts.
La figure 4 montre une vue élargie de la partie avant du renfort 7 de la portion inférieure de la structure avant 1 de la figure 1. Cette partie avant du renfort 7 comprend une paroi avant d’appui 29 sur la paroi avant 9 du pied avant 3. Cette paroi d’appui 29 forme en particulier une équerre avec la paroi principale longitudinale 11 du renfort 7, mais également une équerre avec la paroi longitudinale d’appui 23 sur les parois supérieures 17 du pied avant 3 et du bas de caisse 5. Lors d’un choc frontal sévérisé, la liaison de la paroi d’appui 29 avec la paroi avant 9 du pied avant 3 a pour fonction de reprendre l’appui du pied avant 3 au moment de la poussée de la roue avant (non représentée) du véhicule sur le bas du pied avant 3. Figure 4 shows an enlarged view of the front part of the reinforcement 7 of the lower portion of the front structure 1 of Figure 1. This front part of the reinforcement 7 comprises a front support wall 29 on the front wall 9 of the front foot 3. This support wall 29 forms in particular a square with the main longitudinal wall 11 of the reinforcement 7, but also a square with the longitudinal support wall 23 on the upper walls 17 of the front leg 3 and the rocker panel 5 During a severe frontal impact, the connection of the support wall 29 with the front wall 9 of the front foot 3 has the function of resuming the support of the front foot 3 at the moment of the pushing of the front wheel (not shown) of the vehicle on the bottom of the front leg 3.
La figure 5 représente une vue élargie de la partie arrière du renfort de la portion inférieure de la structure avant 1 de la figure 1. Cette partie arrière du renfort 7 est en fait constituée d’une paroi arrière d’ appui 31 sur une paroi verticale 33 du bas de caisse 5, plus précisément du renfort de bas de caisse 5, la liaison entre les pièces étant réalisée par des points de soudure à résistance électrique. Comme illustré sur la figure 5, la paroi arrière d’appui 31 forme en fait une équerre avec la paroi principale longitudinale 11 du renfort 7, et elle est également pourvue d’une patte d’appui 35 située sur la paroi verticale 33 du renfort de bas de caisse 5. En cas de choc frontal sévérisé la liaison de la paroi arrière d’appui 31 avec la paroi verticale 33 du renfort de bas de caisse 5 a, comme la paroi longitudinale d’appui 11 du renfort 7, pour fonction de contrer le mouvement de flexion de la structure avant 1 du véhicule automobile. FIG. 5 represents an enlarged view of the rear part of the reinforcement of the lower portion of the front structure 1 of FIG. 1. This rear part of the reinforcement 7 is in consists of a rear support wall 31 on a vertical wall 33 of the rocker panel 5, more precisely of the rocker panel reinforcement 5, the connection between the parts being produced by welds of electrical resistance. As illustrated in FIG. 5, the rear support wall 31 in fact forms a square with the main longitudinal wall 11 of the reinforcement 7, and it is also provided with a support lug 35 located on the vertical wall 33 of the reinforcement underbody 5. In the event of a severe frontal impact, the connection of the rear support wall 31 with the vertical wall 33 of the underbody reinforcement 5a, like the longitudinal support wall 11 of the reinforcement 7, for its function to counter the bending movement of the front structure 1 of the motor vehicle.
De façon générale, les renforts situés dans la portion inférieure de la structure avant d’un véhicule selon l’invention ont pour avantage d’être en une seule pièce majoritairement verticale s’étendant entre les parois inférieure et supérieure du bas de caisse et du pied avant, en l’occurrence au niveau de la feuillure de jonction inférieure et des parois supérieures dudit bas de caisse et dudit pied avant. Avantageusement, le renfort assure, en plus de la fonction de renfort, le rôle d’appui cric. Cette invention est encore plus avantageuse en ce que ces renforts appui cric intégré, du fait de leur faible delta de masse, peuvent en fait également s’adapter autant dans l’environnement des véhicules thermiques que des véhicules électriques afin d’ assurer la prestation avec un choc frontal sévérisé. In general, the reinforcements located in the lower portion of the front structure of a vehicle according to the invention have the advantage of being in a single piece, mainly vertical, extending between the lower and upper walls of the rocker panel and the front leg, in this case at the lower junction rebate and the upper walls of said rocker panel and said front leg. Advantageously, the reinforcement provides, in addition to the reinforcement function, the role of jack support. This invention is even more advantageous in that these integrated jack support reinforcements, because of their low mass delta, can in fact also adapt as much in the environment of thermal vehicles as of electric vehicles in order to provide the service with severe frontal impact.

Claims

REVENDICATIONS
1. Véhicule automobile comprenant, de chaque côté latéral : 1. Motor vehicle comprising, on each lateral side:
- un pied avant (3) avec un profil coudé ; - a front leg (3) with a bent profile;
- un bas de caisse (5) longitudinal relié au pied avant (3); - a longitudinal rocker panel (5) connected to the front leg (3);
- un renfort (7) disposé dans le pied avant (3) et s’étendant longitudinalement depuis une paroi avant (9) dudit pied (3) jusque dans le bas de caisse (5); - a reinforcement (7) disposed in the front leg (3) and extending longitudinally from a front wall (9) of said leg (3) as far as the rocker panel (5);
caractérisée en ce que characterized in that
le renfort (7) est un embouti (7) comprenant une paroi principale longitudinale (11) inclinée de moins de 30° par rapport à la verticale, un bord inférieur (15) en vis-à-vis d’une feuillure de jonction inférieure (19) du pied avant (3) et du bas de caisse (5), et un bord supérieur (13) en appui sur des parois supérieures (17) du pied avant (3) et du bas de caisse (5). the reinforcement (7) is a deep-drawn (7) comprising a longitudinal main wall (11) inclined less than 30 ° relative to the vertical, a lower edge (15) facing a lower junction rebate (19) of the front leg (3) and the rocker panel (5), and an upper edge (13) bearing on upper walls (17) of the front leg (3) and the rocker panel (5).
2. Véhicule selon la revendication 1, caractérisé en ce que l’inclinaison de la paroi principale (11) par rapport à la verticale est supérieure à 15°. 2. Vehicle according to claim 1, characterized in that the inclination of the main wall (11) relative to the vertical is greater than 15 °.
3. Véhicule selon l’une des revendications 1 et 2, caractérisé en ce que le bord supérieur (13) de l’embouti (7) comprend une paroi longitudinale d’appui (23) sur les parois supérieures (17) du pied avant et du bas de caisse, ladite paroi longitudinale (23) formant une équerre avec la paroi principale (11). 3. Vehicle according to one of claims 1 and 2, characterized in that the upper edge (13) of the stamping (7) comprises a longitudinal bearing wall (23) on the upper walls (17) of the front foot and underbody, said longitudinal wall (23) forming a square with the main wall (11).
4. Véhicule selon la revendication 3, caractérisé en ce que l’équerre forme un creux dirigé latéralement vers l’intérieur dudit véhicule. 4. Vehicle according to claim 3, characterized in that the bracket forms a hollow directed laterally towards the interior of said vehicle.
5. Véhicule selon l’une des revendications 1 à 4, caractérisé en ce que l’embouti (7) comprend une patte (21) faisant saillie vers le bas depuis le bord inférieur (15), ladite patte (21) étant logée dans la feuillure de jonction inférieure (19) du pied avant (3) et du bas de caisse (5), de manière à servir de zone d’appui d’un cric de levage du véhicule. 5. Vehicle according to one of claims 1 to 4, characterized in that the stamping (7) comprises a tab (21) projecting downward from the lower edge (15), said tab (21) being housed in the lower joining rebate (19) of the front leg (3) and the rocker panel (5), so as to serve as a support zone for a jack for lifting the vehicle.
6. Véhicule selon la revendication 5, caractérisé en ce que la patte (21) est située sur une moitié avant de l’embouti (7). 6. Vehicle according to claim 5, characterized in that the tab (21) is located on a front half of the stamping (7).
7. Véhicule selon l’une des revendications 1 à 6, caractérisé en ce que l’embouti (7) comprend une paroi avant d’appui (29) sur la paroi avant (9) du pied avant (3), ladite paroi (29) avant formant une équerre avec la paroi principale (11). 7. Vehicle according to one of claims 1 to 6, characterized in that the pressed (7) comprises a front support wall (29) on the front wall (9) of the front leg (3), said wall ( 29) before forming a square with the main wall (11).
8. Véhicule selon l’une des revendications 3 et 4, et selon la revendication 7, caractérisé en ce que la paroi avant d’appui (29) sur la paroi avant (9) du pied avant (3) forme une équerre avec la paroi longitudinale d’appui (23) sur les parois supérieures (17) du pied avant (3) et du bas de caisse (5). 8. Vehicle according to one of claims 3 and 4, and according to claim 7, characterized in that the front support wall (29) on the front wall (9) of the front leg (3) forms a square with the longitudinal support wall (23) on the upper walls (17) of the front leg (3) and the rocker panel (5).
9. Véhicule selon l’une des revendications 1 à 8, caractérisé en ce que l’embouti (7) comprend une paroi arrière d’appui (31) sur une paroi verticale (33) du bas de caisse, ladite paroi arrière (31) formant une équerre avec la paroi principale (11) et comprend une patte d’appui (35) sur ladite paroi verticale (33) du bas de caisse (3). 9. Vehicle according to one of claims 1 to 8, characterized in that the pressed (7) comprises a rear support wall (31) on a vertical wall (33) of the rocker panel, said rear wall (31 ) forming a square with the main wall (11) and comprises a support lug (35) on said vertical wall (33) of the rocker panel (3).
10. Véhicule selon l’une des revendications 1 à 9, caractérisé en ce que la paroi principale (11) comprend plusieurs ajours (27) destinés à alléger l’embouti (7). 10. Vehicle according to one of claims 1 to 9, characterized in that the main wall (11) comprises several openings (27) intended to lighten the stamping (7).
EP19842587.8A 2018-12-21 2019-11-22 Front rocker panel structure reinforcement with integrated jack support function Withdrawn EP3898386A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1873743A FR3090558B1 (en) 2018-12-21 2018-12-21 FRONT SIDE SIDE STRUCTURE REINFORCEMENT WITH INTEGRATED JACK SUPPORT FUNCTION
PCT/FR2019/052787 WO2020128178A1 (en) 2018-12-21 2019-11-22 Front rocker panel structure reinforcement with integrated jack support function

Publications (1)

Publication Number Publication Date
EP3898386A1 true EP3898386A1 (en) 2021-10-27

Family

ID=66676750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19842587.8A Withdrawn EP3898386A1 (en) 2018-12-21 2019-11-22 Front rocker panel structure reinforcement with integrated jack support function

Country Status (4)

Country Link
EP (1) EP3898386A1 (en)
CN (1) CN113195344B (en)
FR (1) FR3090558B1 (en)
WO (1) WO2020128178A1 (en)

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Publication number Priority date Publication date Assignee Title
JPS5965877U (en) * 1982-10-25 1984-05-02 マツダ株式会社 Automotive lower front pillar structure
JPS60131376A (en) * 1983-12-20 1985-07-13 Nissan Motor Co Ltd Joint structure of pillar and side sill
JPS61169376A (en) * 1985-01-23 1986-07-31 Nissan Motor Co Ltd Structure of joining part of pillar to sidesill
AU2003264503A1 (en) * 2002-09-24 2004-04-19 Daihatsu Motor Co., Ltd. Belt line part structure of car
JP4645541B2 (en) * 2006-07-10 2011-03-09 日産自動車株式会社 Car body rear structure
FR2922508B1 (en) 2007-10-23 2010-04-09 Peugeot Citroen Automobiles Sa STRUCTURE OF MOTOR VEHICLE
DE102010017384B4 (en) * 2010-06-16 2020-07-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Structure for a motor vehicle
JP5879938B2 (en) * 2011-11-04 2016-03-08 スズキ株式会社 Reinforcement structure for side panels at the rear of the vehicle
FR3024414B1 (en) * 2014-08-04 2016-08-26 Peugeot Citroen Automobiles Sa VEHICLE STRUCTURE WITH REINFORCEMENT BETWEEN ALUMINUM LONGERON AND FRONT FOOT
FR3027864B1 (en) * 2014-10-30 2016-11-18 Peugeot Citroen Automobiles Sa AUTOMOTIVE VEHICLE BODY LONGERON WITH MODULAR PIECE

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Publication number Publication date
WO2020128178A1 (en) 2020-06-25
CN113195344A (en) 2021-07-30
FR3090558A1 (en) 2020-06-26
FR3090558B1 (en) 2020-11-27
CN113195344B (en) 2023-10-03

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