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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=83280349

Family Applications (1)

Country Status (3)

Family Cites Families (5)

• 2022
  • 2022-07-19 FR FR2207375A patent/FR3138082A1/fr active Pending
• 2023
  • 2023-06-21 WO PCT/FR2023/050933 patent/WO2024018134A1/fr not_active Ceased
  • 2023-06-21 EP EP23742128.4A patent/EP4558360A1/de active Pending

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