WO2024018134A1 - Ribbed bumper reinforcement under the front optical unit of a motor vehicle - Google Patents

Ribbed bumper reinforcement under the front optical unit of a motor vehicle Download PDF

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Publication number
WO2024018134A1
WO2024018134A1 PCT/FR2023/050933 FR2023050933W WO2024018134A1 WO 2024018134 A1 WO2024018134 A1 WO 2024018134A1 FR 2023050933 W FR2023050933 W FR 2023050933W WO 2024018134 A1 WO2024018134 A1 WO 2024018134A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcement
motor vehicle
external wall
upper edge
front bumper
Prior art date
Application number
PCT/FR2023/050933
Other languages
French (fr)
Inventor
Guillaume Royer
Julien BOUDAN
Rodolphe Peron
Thibault Gourvennec
Original Assignee
Stellantis Auto 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 Stellantis Auto Sas filed Critical Stellantis Auto Sas
Publication of WO2024018134A1 publication Critical patent/WO2024018134A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1886—Bumper fascias and fastening means therefor

Definitions

  • the present invention relates to the field of motor vehicles, more particularly the field of bumpers of motor vehicles.
  • the fronts of current motor vehicles integrate more additional parts linked to the evolution of technologies (optics, radars, sensors, structural parts, etc.). This has the effect of making the front faces of motor vehicles heavier, thus causing the deformation and/or sagging of the front bumpers, therefore making them non-compliant from a rigidity point of view.
  • the published patent document FR 2 931 418 A1 discloses an adjustable device for mounting a vehicle bumper comprising a transverse profile comprising stiffening means arranged inside the profile.
  • the solution in the document presents room for improvement, because although it can limit the deformation of the bumper during a frontal impact, the solution does not effectively limit the sagging of the bumper. may be caused by heavy parts.
  • the device disclosed requires an assembly operation prior to mounting the bumper on the motor vehicle which complicates the assembly of the latter.
  • the present invention aims to overcome at least one of the disadvantages of the aforementioned state of the art. More particularly, the invention aims to propose a simple, efficient and economical solution making it possible to improve the rigidity and quality of the bumper assemblies of motor vehicles, without degrading the aesthetics of the assemblies.
  • the subject of the invention is a front bumper for a motor vehicle, said bumper comprising:
  • the reinforcement fixed against an internal face of the external wall, said reinforcement being intended to be fixed on a body of the motor vehicle; remarkable in that the reinforcement comprises a central part and two side ends supporting, respectively, the two opposite side portions of the upper edge of the external wall.
  • the central part of the reinforcement extends upwards beyond the upper edge of the external wall.
  • the external wall comprises, under each of the two opposite lateral portions of the upper edge, at least one opening intended to receive a daytime running light, each of the two lateral ends of the reinforcement being located, transversely to the motor vehicle, between the 'at least one corresponding opening and the central part.
  • each of the two lateral ends of the reinforcement extends, transversely to the motor vehicle, over at least 25% and not more than 60% of the lateral portion of the upper edge of the external wall.
  • the upper edge of the external wall at the level of the two opposite side portions, forms a longitudinal reference of said external wall.
  • each of the two lateral ends of the reinforcement comprises at least one longitudinal rib.
  • each of the ribs comprises an inclined front end, so as to facilitate the assembly of the external wall and the internal reinforcement.
  • each of the ribs comprises a height corresponding to at least twice a thickness of the upper edge of the external wall.
  • the invention also relates to a motor vehicle comprising a body on which is mounted an internal reinforcement belonging to a front bumper of said motor vehicle, remarkable in that said front bumper is according to the invention.
  • the two lateral portions of the upper edge of the external wall are stiffened under the headlights by the lateral ends of the internal reinforcement of the bumper of the invention, which makes it possible to effectively avoid the risk of sagging of the lateral portions in order to to guarantee a fixed position of the front headlights and the conformity of the adjustments of the bumper to the body of the motor vehicle.
  • the shape of the ribs arranged to the right of the lateral ends makes it easier to assemble the external wall with the internal reinforcement, resulting in a saving of time during assembly, and also makes it possible to further protect the external wall from any damage. .
  • FIG 1 represents an exploded view of the bumper of the invention comprising an internal reinforcement and an external wall;
  • FIG 2 represents a front view of a side portion of an upper edge of the external wall
  • FIG 3 represents an internal view of the assembled bumper, showing a lateral end of the reinforcement provided with at least one rib in contact with the lateral portion of the external wall;
  • FIG 4 represents an enlarged and perspective view of the lateral end of the reinforcement.
  • Figure 1 represents an exploded view of the front bumper 2 of a motor vehicle 4, said bumper 2 comprising an internal reinforcement 6 and an external wall 8.
  • the internal reinforcement 6 corresponds to a single piece made of molded plastic.
  • the reinforcement 6 is intended to be fixed to an internal face 8.1 of the external wall 8 preferably by clipping and/or by screwing, and to be fixed to a body of the motor vehicle 4 and preferably by screwing, so as to allow the maintaining several components of the front face of said motor vehicle 4 (optics and/or headlights and/or radars and/or sensors, etc.).
  • the reinforcement 6 includes a rigidity greater than that of the external wall 8.
  • the reinforcement 6 extends transversely (along the Y axis) up to approximately half of the transverse extent of the external wall 8.
  • the bumper 2 is preferably symmetrical with respect to a central axis of symmetry parallel to the vertical direction Z.
  • the external wall 8 comprises an upper edge 8.2 with two opposite side portions 8.3 intended to be arranged directly under two headlights of the motor vehicle 4.
  • the reinforcement 6 comprises a central part 6.1 extending upwards (along the Z axis) beyond the upper edge 8.2 of the external wall 8 when said reinforcement 6 is fixed to the external wall 8.
  • the central part 6.1 of the reinforcement 6 may include holes allowing the passage of screws and/or clips belonging to the external wall 8.
  • the central part 6.1 extends upwards beyond the upper edge 8.2 by a distance corresponding to at least 10% of a vertical extent of the external wall 8 (along the Z axis), this allows to guarantee that a significant surface area of the central part 6.1 is fixed to the body, so as to guarantee sufficient rigidity to the reinforcement 6.
  • the reinforcement 6 also comprises two side ends 6.2 making it possible to rigidly support each of the two opposite side portions 8.3 of the upper edge 8.2 of the external wall 8. Details concerning the side ends 6.2 and their arrangement with the side portions 8.3 will be given in this description.
  • Figure 2 represents a front view of the side portion 8.3 of the upper edge 8.2 of the external wall 8.
  • the external wall 8 comprises at least one opening 10 intended to receive a daytime running light 10.1 under each of the two opposite side portions 8.3 of the upper edge 8.2 of the motor vehicle.
  • the side portion 8.3 includes three daytime running lights 10.1.
  • these daytime running lights make it possible to provide rigidity to the extreme sides of the lateral portions 8.3, and the lateral ends 6.2 of the reinforcement 6 make it possible to guarantee the rigidity of the lateral portions 8.3, in particular between the central part 6.1 and the daytime running lights 10.1. This makes it possible to better support the two headlights of the motor vehicle while avoiding the sagging of the side portions 8.3.
  • Figure 3 represents an internal view of the assembled bumper 2
  • Figure 3 shows the lateral end 6.2 of the reinforcement 6 provided with at least one rib 6.3 in contact with the lateral portion 8.3 of the external wall 8.
  • the lateral end 6.2 extends transversely to the motor vehicle between the opening 10.1 and the central part 6.1 of the reinforcement 6.
  • the lateral end 6.2 extends over at least 10% and not more than 80% of the transverse extent of the lateral portion 8.3, and more preferably, the lateral end 6.2 extends over 25% to 65% of said transverse extent.
  • daytime running lights 10.1 comprise an internal housing 10.2 directly attached to the reinforcement 6 and providing rigidity to the extreme side of the lateral portion 8.3.
  • the upper edge 8.2 forms a longitudinal reference of the external wall 8 at the level of the lateral portion 8.3.
  • the upper edge 8.2 extends longitudinally towards the rear (following the direction of travel of the motor vehicle) with a length L of between 5 mm and 100 mm.
  • the lateral end 6.2 comprises a longitudinal length equal to the length L of the upper edge 8.2 at the level of the lateral portion 8.3, so as to maintain contact and guarantee rigidity between the lateral end 6.2 and the upper edge 8.2 over the entire length.
  • Figure 4 represents an enlarged and perspective view of the lateral end 6.2 of the reinforcement 6 provided with at least one longitudinal rib 6.3.
  • the lateral end 6.2 comprises between two and ten ribs 6.3, and more preferably four ribs as illustrated.
  • each rib 6.3 extends in the vertical direction Z and comprises a height h corresponding to at least twice a thickness e of the upper edge 8.2 of the lateral portion 8.3, the height h can correspond to at plus five times the thickness e.
  • the ribs 6.3 make it possible to guarantee the homogeneity and continuity of the rigidity over the entire length L of the lateral portion 8.3.
  • Each of the ribs 6.3 comprises a front end 6.4 inclined relative to the longitudinal direction
  • the shape and inclination of the front end 6.4 of the ribs 6.3 arranged to the right of the lateral ends 6.2 make it possible to facilitate the assembly between the external wall 8 and the reinforcement 6.
  • the longitudinal direction substantially to a mounting direction of the external wall 8 with the reinforcement 6.
  • the inclination of the front end 6.4 in the direction X ensures, during the assembly process, that the wall 8 of the bumper is supported on the reinforcement 6 and thus facilitates its assembly. This advantageously saves time and avoids damaging the external wall 8 and/or the reinforcement 6.
  • the stiffening of the lateral portion of the external wall under the headlight of the motor vehicle makes it possible to avoid any risk of sagging due to the mass of said headlight, without using an additional part.
  • the invention is economical and makes it possible to ensure a gain in mass at least thanks to the use of the already existing internal reinforcement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The present invention relates to a front bumper (2) for a motor vehicle (4), the bumper comprising: an outer wall (8) comprising an upper edge (8.2) with two opposite side portions (8.3) intended to be arranged directly under two headlights of the motor vehicle; a reinforcement (6) attached to an inner face (8.1) of the outer wall, the reinforcement being intended to be attached to a body of the motor vehicle; characterised in that the reinforcement comprises a central part (6.1) and two lateral ends (6.2) supporting the two opposite side portions, respectively, of the upper edge of the outer wall. The invention also relates to a motor vehicle comprising a body on which an internal reinforcement belonging to a front bumper of the motor vehicle is mounted, characterised in that the front bumper is in accordance with the invention.

Description

DESCRIPTION DESCRIPTION
TITRE : RENFORT NERVURÉ DE PARE-CHOCS SOUS L’OPTIQUE AVANT D’UN VÉHICULE AUTOMOBILE TITLE: RIBBED BUMPER REINFORCEMENT UNDER THE FRONT LIGHT OF A MOTOR VEHICLE
Domaine technique Technical area
La présente invention revendique la priorité de la demande française 2207375 déposée le 19 juillet 2022, dont le contenu (texte, dessins et revendications) est ici incorporé par référence. The present invention claims priority from French application 2207375 filed on July 19, 2022, the content of which (text, drawings and claims) is herein incorporated by reference.
La présente invention concerne le domaine des véhicules automobiles, plus particulièrement le domaine des pare-chocs des véhicules automobiles. The present invention relates to the field of motor vehicles, more particularly the field of bumpers of motor vehicles.
Technique antérieure Prior art
Les faces avant des véhicules automobiles actuels intègrent davantage de pièces supplémentaires liés à l’évolution des technologies (optiques, radars, capteurs, pièces de structures, etc.). Cela a pour effet d’alourdir les faces avant des véhicules automobiles, causant ainsi la déformation et/ou l’affaissement des pare-chocs avant, les rendant donc non-conformes d’un point de vue rigidité. The fronts of current motor vehicles integrate more additional parts linked to the evolution of technologies (optics, radars, sensors, structural parts, etc.). This has the effect of making the front faces of motor vehicles heavier, thus causing the deformation and/or sagging of the front bumpers, therefore making them non-compliant from a rigidity point of view.
Le document de brevet publié FR 2 931 418 A1 divulgue un dispositif réglable de montage d'un pare-chocs de véhicule comprenant un profilé transversal comportant des moyens de rigid ification disposés à l'intérieur du profilé. The published patent document FR 2 931 418 A1 discloses an adjustable device for mounting a vehicle bumper comprising a transverse profile comprising stiffening means arranged inside the profile.
Cependant, la solution du document présente une marge d’amélioration, car bien qu’elle puisse permettre de limiter la déformation du pare-chocs lors d'un choc frontal, la solution ne permet pas de limiter efficacement l’affaissement du pare- chocs pouvant être causé par des pièces lourdes. De plus, le dispositif divulgué nécessite une opération de montage préalable au montage du pare-chocs sur le véhicule automobile qui complexifie l’assemblage de ce dernier. However, the solution in the document presents room for improvement, because although it can limit the deformation of the bumper during a frontal impact, the solution does not effectively limit the sagging of the bumper. may be caused by heavy parts. In addition, the device disclosed requires an assembly operation prior to mounting the bumper on the motor vehicle which complicates the assembly of the latter.
Exposé de l'invention Presentation of the invention
La présente invention a pour objectif de pallier au moins un des inconvénients de l’état de la technique susmentionné. Plus particulièrement, l’invention a pour objectif de proposer une solution simple, performante et économique permettant d’améliorer la rigidité et la qualité des assemblages des pare-chocs des véhicules automobiles, et cela, sans dégrader l’esthétisme des assemblages. À cet effet, l’invention a pour objet un pare-chocs avant pour véhicule automobile, ledit pare-chocs comprenant : The present invention aims to overcome at least one of the disadvantages of the aforementioned state of the art. More particularly, the invention aims to propose a simple, efficient and economical solution making it possible to improve the rigidity and quality of the bumper assemblies of motor vehicles, without degrading the aesthetics of the assemblies. To this end, the subject of the invention is a front bumper for a motor vehicle, said bumper comprising:
- une paroi externe comprenant un bord supérieur avec deux portions latérales opposées destinées à être disposés directement sous deux projecteurs dudit véhicule automobile ; - an external wall comprising an upper edge with two opposite side portions intended to be placed directly under two headlights of said motor vehicle;
- un renfort fixé contre une face interne de la paroi externe, ledit renfort étant destiné à être fixé sur une caisse du véhicule automobile ; remarquable en ce que le renfort comprend une partie centrale et deux extrémités latérales soutenant, respectivement, les deux portions latérales opposées du bord supérieur de la paroi externe. - a reinforcement fixed against an internal face of the external wall, said reinforcement being intended to be fixed on a body of the motor vehicle; remarkable in that the reinforcement comprises a central part and two side ends supporting, respectively, the two opposite side portions of the upper edge of the external wall.
Selon un mode de réalisation, la partie centrale du renfort s’étend vers le haut au- delà du bord supérieur de la paroi externe. According to one embodiment, the central part of the reinforcement extends upwards beyond the upper edge of the external wall.
Selon un mode de réalisation, la paroi externe comprend, sous chacune des deux portions latérales opposées du bord supérieur, au moins un ajour destiné à recevoir un feu diurne, chacune des deux extrémités latérales du renfort étant située, transversalement au véhicule automobile, entre l’au moins un ajour correspondant et la partie centrale. According to one embodiment, the external wall comprises, under each of the two opposite lateral portions of the upper edge, at least one opening intended to receive a daytime running light, each of the two lateral ends of the reinforcement being located, transversely to the motor vehicle, between the 'at least one corresponding opening and the central part.
Selon un mode de réalisation, chacune des deux extrémités latérales du renfort s’étend, transversalement au véhicule automobile, sur au moins 25% et pas plus de 60% de la portion latérale de bord supérieur de la paroi externe. According to one embodiment, each of the two lateral ends of the reinforcement extends, transversely to the motor vehicle, over at least 25% and not more than 60% of the lateral portion of the upper edge of the external wall.
Selon un mode de réalisation, le bord supérieur de la paroi externe, au niveau des deux portions latérales opposées, forme un renvoi longitudinal de ladite paroi externe. According to one embodiment, the upper edge of the external wall, at the level of the two opposite side portions, forms a longitudinal reference of said external wall.
Selon un mode de réalisation, chacune des deux extrémités latérales du renfort comprend au moins une nervure longitudinale. According to one embodiment, each of the two lateral ends of the reinforcement comprises at least one longitudinal rib.
Selon un mode de réalisation, chacune des nervures comprend une extrémité avant inclinée, de manière à faciliter l’assemblage de la paroi externe et le renfort interne.According to one embodiment, each of the ribs comprises an inclined front end, so as to facilitate the assembly of the external wall and the internal reinforcement.
Selon un mode de réalisation, l’inclinaison de l’extrémité avant de chacune des nervures est d’au moins 20° par rapport à la direction longitudinale. Selon un mode de réalisation, chacune des nervures comprend une hauteur correspondant à au moins deux fois une épaisseur du bord supérieur de la paroi externe. According to one embodiment, the inclination of the front end of each of the ribs is at least 20° relative to the longitudinal direction. According to one embodiment, each of the ribs comprises a height corresponding to at least twice a thickness of the upper edge of the external wall.
L’invention a également pour objet un véhicule automobile comprenant une caisse sur laquelle est monté un renfort interne appartenant à un pare-chocs avant dudit véhicule automobile, remarquable en ce que ledit pare-chocs avant est selon l’invention. The invention also relates to a motor vehicle comprising a body on which is mounted an internal reinforcement belonging to a front bumper of said motor vehicle, remarkable in that said front bumper is according to the invention.
Avantageusement, les deux portions latérales du bord supérieur de la paroi externe sont rigidifiées sous les projecteurs par les extrémités latérales du renfort interne du pare-chocs de l’invention, ce qui permet d’éviter efficacement le risque d’affaissement des portions latérales afin de garantir une position fixe des projecteurs avant et la conformité des ajustements du pare-chocs sur la caisse du véhicule automobile. Advantageously, the two lateral portions of the upper edge of the external wall are stiffened under the headlights by the lateral ends of the internal reinforcement of the bumper of the invention, which makes it possible to effectively avoid the risk of sagging of the lateral portions in order to to guarantee a fixed position of the front headlights and the conformity of the adjustments of the bumper to the body of the motor vehicle.
De plus, la forme des nervures disposées au droit des extrémités latérales permet de faciliter l’assemblage de la paroi externe avec le renfort interne, résultant en un gain de temps lors du montage, et permet également de préserver davantage la paroi externe de tout endommagement. In addition, the shape of the ribs arranged to the right of the lateral ends makes it easier to assemble the external wall with the internal reinforcement, resulting in a saving of time during assembly, and also makes it possible to further protect the external wall from any damage. .
Brève description des dessins Brief description of the drawings
[Fig 1] représente une vue éclatée du pare-chocs de l’invention comprenant un renfort interne et une paroi externe ; [Fig 1] represents an exploded view of the bumper of the invention comprising an internal reinforcement and an external wall;
[Fig 2] représente une vue de face d’une portion latérale d’un bord supérieur de la paroi externe ; [Fig 2] represents a front view of a side portion of an upper edge of the external wall;
[Fig 3] représente une vue interne du pare-chocs assemblé, montrant une extrémité latérale du renfort pourvue d’au moins une nervure en contact avec la portion latérale de la paroi externe ; [Fig 3] represents an internal view of the assembled bumper, showing a lateral end of the reinforcement provided with at least one rib in contact with the lateral portion of the external wall;
[Fig 4] représente une vue agrandie et en perspective de l’extrémité latérale du renfort. [Fig 4] represents an enlarged and perspective view of the lateral end of the reinforcement.
Description détaillée detailed description
La figure 1 représente une vue éclatée du pare-chocs avant 2 de véhicule automobile 4, ledit pare-chocs 2 comprenant un renfort interne 6 et une paroi externe 8. Préférentiellement, le renfort interne 6 correspond à une pièce monobloc fabriquée en plastique moulé. Le renfort 6 est destiné à être fixé à une face interne 8.1 de la paroi externe 8 de préférence par clipsage et/ou par vissage, et à être fixé à une caisse du véhicule automobile 4 et de préférence par vissage, de manière à permettre le maintien de plusieurs composants de la face avant dudit véhicule automobile 4 (optiques et/ou projecteurs et/ou radars et/ou capteurs, etc.). A cet égard, le renfort 6 comprend une rigidité supérieure à celle de la paroi externe 8.Figure 1 represents an exploded view of the front bumper 2 of a motor vehicle 4, said bumper 2 comprising an internal reinforcement 6 and an external wall 8. Preferably, the internal reinforcement 6 corresponds to a single piece made of molded plastic. The reinforcement 6 is intended to be fixed to an internal face 8.1 of the external wall 8 preferably by clipping and/or by screwing, and to be fixed to a body of the motor vehicle 4 and preferably by screwing, so as to allow the maintaining several components of the front face of said motor vehicle 4 (optics and/or headlights and/or radars and/or sensors, etc.). In this regard, the reinforcement 6 includes a rigidity greater than that of the external wall 8.
Préférentiellement, le renfort 6 s’étend transversalement (suivant l’axe Y) jusqu’à environ une moitié de l’étendue transversale de la paroi externe 8. Preferably, the reinforcement 6 extends transversely (along the Y axis) up to approximately half of the transverse extent of the external wall 8.
Il est à noter que le pare-chocs 2 est de préférence symétrique par rapport à un axe de symétrie central parallèle à la direction verticale Z. It should be noted that the bumper 2 is preferably symmetrical with respect to a central axis of symmetry parallel to the vertical direction Z.
La paroi externe 8 comprend un bord supérieur 8.2 avec deux portions latérales 8.3 opposées destinées à être disposées directement sous deux projecteurs du véhicule automobile 4. The external wall 8 comprises an upper edge 8.2 with two opposite side portions 8.3 intended to be arranged directly under two headlights of the motor vehicle 4.
Le renfort 6 comprend une partie centrale 6.1 s’étendant vers le haut (suivant l’axe Z) au-delà du bord supérieur 8.2 de la paroi externe 8 quand ledit renfort 6 est fixé à la paroi externe 8. The reinforcement 6 comprises a central part 6.1 extending upwards (along the Z axis) beyond the upper edge 8.2 of the external wall 8 when said reinforcement 6 is fixed to the external wall 8.
La partie centrale 6.1 du renfort 6 peut comprendre des trous permettant le passage de vis et/ou de clips appartenant à la paroi externe 8. The central part 6.1 of the reinforcement 6 may include holes allowing the passage of screws and/or clips belonging to the external wall 8.
De préférence, la partie centrale 6.1 s’étend vers le haut au-delà du bord supérieur 8.2 d’une distance correspondant à au moins 10% d’une étendue verticale de la paroi externe 8 (suivant l’axe Z), cela permet de garantir qu’une surface importante de la partie centrale 6.1 soit fixée à la caisse, de manière à garantir une rigidité suffisante au renfort 6. Preferably, the central part 6.1 extends upwards beyond the upper edge 8.2 by a distance corresponding to at least 10% of a vertical extent of the external wall 8 (along the Z axis), this allows to guarantee that a significant surface area of the central part 6.1 is fixed to the body, so as to guarantee sufficient rigidity to the reinforcement 6.
Le renfort 6 comprend également deux extrémités latérales 6.2 permettant de soutenir de manière rigide chacune des deux portions latérales 8.3 opposées du bord supérieur 8.2 de la paroi externe 8. Des détails concernant les extrémités latérales 6.2 et leur disposition avec les portions latérales 8.3 seront données dans la présente description. The reinforcement 6 also comprises two side ends 6.2 making it possible to rigidly support each of the two opposite side portions 8.3 of the upper edge 8.2 of the external wall 8. Details concerning the side ends 6.2 and their arrangement with the side portions 8.3 will be given in this description.
La figure 2 représente une vue de face de la portion latérale 8.3 du bord supérieur 8.2 de la paroi externe 8. Préférentiellement, la paroi externe 8 comprend au moins un ajour 10 destiné à recevoir un feu diurne 10.1 sous chacune des deux portions latérales 8.3 opposées du bord supérieur 8.2 du véhicule automobile. Figure 2 represents a front view of the side portion 8.3 of the upper edge 8.2 of the external wall 8. Preferably, the external wall 8 comprises at least one opening 10 intended to receive a daytime running light 10.1 under each of the two opposite side portions 8.3 of the upper edge 8.2 of the motor vehicle.
On peut voir sur la figure 2 que la portion latérale 8.3 comprend trois feux diurnes 10.1. Avantageusement, ces feux diurnes permettent d’apporter une rigidité aux côtés extrêmes des portions latérales 8.3, et les extrémités latérales 6.2 du renfort 6 permettent de garantir la rigidité des portions latérales 8.3, notamment entre la partie centrale 6.1 et les feux diurnes 10.1 . Cela permet de mieux supporter les deux projecteurs du véhicule automobile tout en évitant l’affaissement des portions latérales 8.3. We can see in Figure 2 that the side portion 8.3 includes three daytime running lights 10.1. Advantageously, these daytime running lights make it possible to provide rigidity to the extreme sides of the lateral portions 8.3, and the lateral ends 6.2 of the reinforcement 6 make it possible to guarantee the rigidity of the lateral portions 8.3, in particular between the central part 6.1 and the daytime running lights 10.1. This makes it possible to better support the two headlights of the motor vehicle while avoiding the sagging of the side portions 8.3.
La figure 3 représente une vue interne du pare-chocs 2 assemblé, la figure 3 montre l’extrémité latérale 6.2 du renfort 6 pourvue d’au moins une nervure 6.3 en contact avec la portion latérale 8.3 de la paroi externe 8. Figure 3 represents an internal view of the assembled bumper 2, Figure 3 shows the lateral end 6.2 of the reinforcement 6 provided with at least one rib 6.3 in contact with the lateral portion 8.3 of the external wall 8.
L’extrémité latérale 6.2 s’étend transversalement au véhicule automobile entre l’ajour 10.1 et la partie centrale 6.1 du renfort 6. Préférentiellement, l’extrémité latérale 6.2 s’étend sur au moins 10% et pas plus de 80% de l’étendue transversale de la portion latérale 8.3, et plus préférentiellement, l’extrémité latérale 6.2 s’étend sur 25% à 65% de ladite étendue transversale. The lateral end 6.2 extends transversely to the motor vehicle between the opening 10.1 and the central part 6.1 of the reinforcement 6. Preferably, the lateral end 6.2 extends over at least 10% and not more than 80% of the transverse extent of the lateral portion 8.3, and more preferably, the lateral end 6.2 extends over 25% to 65% of said transverse extent.
On peut voir que les feux diurnes 10.1 comprennent un boîtier interne 10.2 directement fixé au renfort 6 et procurant la rigidité au côté extrême de la portion latérale 8.3. It can be seen that the daytime running lights 10.1 comprise an internal housing 10.2 directly attached to the reinforcement 6 and providing rigidity to the extreme side of the lateral portion 8.3.
Préférentiellement, le bord supérieur 8.2 forme un renvoi longitudinal de la paroi externe 8 au niveau de la portion latérale 8.3. Dans cette configuration, le bord supérieur 8.2 s’étend longitudinalement vers l’arrière (suivant le sens de roulage du véhicule automobile) d’une longueur L comprise entre 5 mm et 100 mm. Preferably, the upper edge 8.2 forms a longitudinal reference of the external wall 8 at the level of the lateral portion 8.3. In this configuration, the upper edge 8.2 extends longitudinally towards the rear (following the direction of travel of the motor vehicle) with a length L of between 5 mm and 100 mm.
De préférence, l’extrémité latérale 6.2 comprend une longueur longitudinale égale à la longueur L du bord supérieur 8.2 au niveau de la portion latérale 8.3, de façon à maintenir le contact et de garantir la rigidité entre l’extrémité latérale 6.2 et le bord supérieur 8.2 sur toute la longueur. Preferably, the lateral end 6.2 comprises a longitudinal length equal to the length L of the upper edge 8.2 at the level of the lateral portion 8.3, so as to maintain contact and guarantee rigidity between the lateral end 6.2 and the upper edge 8.2 over the entire length.
La figure 4 représente une vue agrandie et en perspective de l’extrémité latérale 6.2 du renfort 6 pourvue de l’au moins une nervure longitudinale 6.3. Préférentiellement, l’extrémité latérale 6.2 comprend entre deux et dix nervures 6.3, et plus préférentiellement quatre nervures telles qu’illustrées. Figure 4 represents an enlarged and perspective view of the lateral end 6.2 of the reinforcement 6 provided with at least one longitudinal rib 6.3. Preferably, the lateral end 6.2 comprises between two and ten ribs 6.3, and more preferably four ribs as illustrated.
En référence aux figures 3 et 4, chaque nervure 6.3 s’étend suivant la direction verticale Z et comprend une hauteur h correspondant à au moins deux fois une épaisseur e du bord supérieur 8.2 de la portion latérale 8.3, la hauteur h peut correspondre à au plus cinq fois l’épaisseur e. With reference to Figures 3 and 4, each rib 6.3 extends in the vertical direction Z and comprises a height h corresponding to at least twice a thickness e of the upper edge 8.2 of the lateral portion 8.3, the height h can correspond to at plus five times the thickness e.
Avantageusement, les nervures 6.3 permettent de garantir l’homogénéité et la continuité de la rigidité sur toute la longueur L de la portion latérale 8.3. Advantageously, the ribs 6.3 make it possible to guarantee the homogeneity and continuity of the rigidity over the entire length L of the lateral portion 8.3.
Chacune des nervures 6.3 comprend une extrémité avant 6.4 inclinée par rapport à la direction longitudinale X d’un angle d’inclinaison a compris entre 20° et 45°, et préférentiellement étant égal à 30°. Each of the ribs 6.3 comprises a front end 6.4 inclined relative to the longitudinal direction
De façon avantageuse, la forme et l’inclinaison de l’extrémité avant 6.4 des nervures 6.3 disposées au droit des extrémités latérales 6.2 permettent de faciliter l’assemblage entre la paroi externe 8 et le renfort 6. En effet, la direction longitudinale X correspond sensiblement à une direction de montage de la paroi externe 8 avec le renfort 6. Advantageously, the shape and inclination of the front end 6.4 of the ribs 6.3 arranged to the right of the lateral ends 6.2 make it possible to facilitate the assembly between the external wall 8 and the reinforcement 6. In fact, the longitudinal direction substantially to a mounting direction of the external wall 8 with the reinforcement 6.
Dans cette configuration, l’inclinaison de l’extrémité avant 6.4 suivant la direction X permet d’assurer, lors du processus d’assemblage, l’accompagnement de la paroi 8 du pare-chocs sur le renfort 6 et ainsi faciliter son montage. Ce qui permet avantageusement d’assurer un gain de temps et d’éviter d’endommager la paroi externe 8 et/ou le renfort 6. In this configuration, the inclination of the front end 6.4 in the direction X ensures, during the assembly process, that the wall 8 of the bumper is supported on the reinforcement 6 and thus facilitates its assembly. This advantageously saves time and avoids damaging the external wall 8 and/or the reinforcement 6.
Avantageusement, la rigid ification de la portion latérale de la paroi externe sous le projecteur du véhicule automobile permet d’éviter tout risque d’affaissement dû à la masse dudit projecteur, et cela, sans utiliser une pièce additionnelle. Dans cette configuration, l’invention est économique et permet d’assurer un gain en masse au moins grâce à l’utilisation du renfort interne déjà existant. Advantageously, the stiffening of the lateral portion of the external wall under the headlight of the motor vehicle makes it possible to avoid any risk of sagging due to the mass of said headlight, without using an additional part. In this configuration, the invention is economical and makes it possible to ensure a gain in mass at least thanks to the use of the already existing internal reinforcement.

Claims

REVENDICATIONS
[Revendication 1 .] Pare-chocs avant (2) pour véhicule automobile (4), ledit pare-chocs (2) comprenant : [Claim 1.] Front bumper (2) for a motor vehicle (4), said bumper (2) comprising:
- une paroi externe (8) comprenant un bord supérieur (8.2) avec deux portions latérales (8.3) opposées destinées à être disposées directement sous deux projecteurs dudit véhicule automobile (4) ; - an external wall (8) comprising an upper edge (8.2) with two opposite side portions (8.3) intended to be arranged directly under two headlights of said motor vehicle (4);
- un renfort (6) fixé contre une face interne (8.1 ) de la paroi externe (8), ledit renfort (6) étant destiné à être fixé sur une caisse du véhicule automobile (4) ; caractérisé en ce que le renfort (6) comprend une partie centrale (6.1 ) et deux extrémités latérales (6.2) soutenant, respectivement, les deux portions latérales (8.3) opposées du bord supérieur (8.1 ) de la paroi externe (8). - a reinforcement (6) fixed against an internal face (8.1) of the external wall (8), said reinforcement (6) being intended to be fixed on a body of the motor vehicle (4); characterized in that the reinforcement (6) comprises a central part (6.1) and two lateral ends (6.2) supporting, respectively, the two opposite lateral portions (8.3) of the upper edge (8.1) of the external wall (8).
[Revendication 2.] Pare-chocs avant (2) selon la revendication 1 , caractérisé en ce que la partie centrale (6.1 ) du renfort (6) s’étend vers le haut au-delà du bord supérieur (8.2) de la paroi externe (8). [Claim 2.] Front bumper (2) according to claim 1, characterized in that the central part (6.1) of the reinforcement (6) extends upwards beyond the upper edge (8.2) of the wall external (8).
[Revendication 3.] Pare-chocs avant (2) selon l’une des revendications 1 et 2, caractérisé en ce que la paroi externe (8) comprend, sous chacune des deux portions latérales (8.3) opposées du bord supérieur, au moins un ajour (10) destiné à recevoir un feu diurne (10.1 ), chacune des deux extrémités latérales (6.2) du renfort (6) étant située, transversalement au véhicule automobile (4), entre l’au moins un ajour (10) correspondant et la partie centrale (6.1 ). [Claim 3.] Front bumper (2) according to one of claims 1 and 2, characterized in that the external wall (8) comprises, under each of the two opposite side portions (8.3) of the upper edge, at least an opening (10) intended to receive a daytime running light (10.1), each of the two lateral ends (6.2) of the reinforcement (6) being located, transversely to the motor vehicle (4), between the at least one corresponding opening (10) and the central part (6.1).
[Revendication 4.] Pare-chocs avant (2) selon la revendication 3, caractérisé en ce que chacune des deux extrémités latérales (6.2) du renfort (6) s’étend, transversalement au véhicule automobile (4), sur au moins 25% et pas plus de 60% de la portion latérale (8.3) de bord supérieur (8.2) de la paroi externe (8). [Claim 4.] Front bumper (2) according to claim 3, characterized in that each of the two lateral ends (6.2) of the reinforcement (6) extends, transversely to the motor vehicle (4), over at least 25 % and not more than 60% of the lateral portion (8.3) of the upper edge (8.2) of the external wall (8).
[Revendication 5.] Pare-chocs avant (2) selon l’une des revendications 1 à 4, caractérisé en ce que le bord supérieur (8.2) de la paroi externe (8), au niveau des deux portions latérales (8.3) opposées, forme un renvoi longitudinal de ladite paroi externe (8). [Revendication 6.] Pare-chocs avant (2) selon l’une des revendications 1 à 5, caractérisé en ce que chacune des deux extrémités latérales (6.2) du renfort (6) comprend au moins une nervure longitudinale (6.3). [Claim 5.] Front bumper (2) according to one of claims 1 to 4, characterized in that the upper edge (8.2) of the external wall (8), at the level of the two opposite side portions (8.3) , forms a longitudinal return of said external wall (8). [Claim 6.] Front bumper (2) according to one of claims 1 to 5, characterized in that each of the two lateral ends (6.2) of the reinforcement (6) comprises at least one longitudinal rib (6.3).
[Revendication 7.] Pare-chocs avant (2) selon la revendication 6, caractérisé en ce que chacune des nervures (6.3) comprend une extrémité avant (6.4) inclinée, de manière à faciliter l’assemblage de la paroi externe (8) et le renfort interne (6). [Claim 7.] Front bumper (2) according to claim 6, characterized in that each of the ribs (6.3) comprises an inclined front end (6.4), so as to facilitate the assembly of the external wall (8) and the internal reinforcement (6).
[Revendication 8.] Pare-chocs avant (2) selon la revendication 7, caractérisé en ce que l’inclinaison de l’extrémité avant (6.4) de chacune des nervures (6.3) est d’au moins 20° par rapport à la direction longitudinale (X). [Claim 8.] Front bumper (2) according to claim 7, characterized in that the inclination of the front end (6.4) of each of the ribs (6.3) is at least 20° relative to the longitudinal direction (X).
[Revendication 9.] Pare-chocs avant (2) selon l’une des revendications 1 à 8, caractérisé en ce que chacune des nervures (6.3) comprend une hauteur (h) correspondant à au moins deux fois une épaisseur (e) du bord supérieur (8.2) de la paroi externe (8.2). [Revendication 10.] Véhicule automobile (4) comprenant une caisse sur laquelle est montée un renfort interne (6) appartenant à un pare-chocs avant (2) dudit véhicule automobile (4), caractérisé en ce que ledit pare-chocs avant (2) est selon l’une des revendications 1 à 9. [Claim 9.] Front bumper (2) according to one of claims 1 to 8, characterized in that each of the ribs (6.3) comprises a height (h) corresponding to at least twice a thickness (e) of the upper edge (8.2) of the external wall (8.2). [Claim 10.] Motor vehicle (4) comprising a body on which is mounted an internal reinforcement (6) belonging to a front bumper (2) of said motor vehicle (4), characterized in that said front bumper ( 2) is according to one of claims 1 to 9.
PCT/FR2023/050933 2022-07-19 2023-06-21 Ribbed bumper reinforcement under the front optical unit of a motor vehicle WO2024018134A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FRFR2207375 2022-07-19
FR2207375A FR3138082A1 (en) 2022-07-19 2022-07-19 RIBBED BUMPER REINFORCEMENT UNDER THE FRONT LIGHT OF A MOTOR VEHICLE

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WO2024018134A1 true WO2024018134A1 (en) 2024-01-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207375A1 (en) 1972-11-21 1974-06-14 Lucas Electrical Co Ltd
DE102005009926A1 (en) * 2005-03-04 2006-09-07 Volkswagen Ag Method for fitting front bumper of automobile has guide elements attached under the headlights for gripping and aligning the top edge of the bumper
FR2931418A1 (en) 2008-05-21 2009-11-27 Peugeot Citroen Automobiles Sa Adjustable device i.e. armature, for mounting bumper on body shell of automobile, has transversal section placed along rolling axis of vehicle, and rigidification units placed inside section to limit deformation of bumper during shock
US8567853B2 (en) * 2011-07-29 2013-10-29 Nissan North America, Inc. Vehicle body structure
US10821926B2 (en) * 2018-02-09 2020-11-03 Ford Global Technologies Llc Bumper assembly and a bumper system at a front of a truck

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207375A1 (en) 1972-11-21 1974-06-14 Lucas Electrical Co Ltd
DE102005009926A1 (en) * 2005-03-04 2006-09-07 Volkswagen Ag Method for fitting front bumper of automobile has guide elements attached under the headlights for gripping and aligning the top edge of the bumper
FR2931418A1 (en) 2008-05-21 2009-11-27 Peugeot Citroen Automobiles Sa Adjustable device i.e. armature, for mounting bumper on body shell of automobile, has transversal section placed along rolling axis of vehicle, and rigidification units placed inside section to limit deformation of bumper during shock
US8567853B2 (en) * 2011-07-29 2013-10-29 Nissan North America, Inc. Vehicle body structure
US10821926B2 (en) * 2018-02-09 2020-11-03 Ford Global Technologies Llc Bumper assembly and a bumper system at a front of a truck

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