Lower deflector and rear bumper skirt of a motor vehicle

Abstract

The invention relates to a fairing assembly (26) for a motor vehicle. The fairing assembly (26) comprises a lower deflector (24) with a first transverse edge (28), a general surface (30); a rear bumper skin (16) having an upper wall (18) extending vertically, a lower wall (20) extending longitudinally inwards and having a second transverse edge (32) running parallel to the first transverse edge. The bumper skin forms a skirt. The lower deflector (24) includes a guide protrusion (42) projecting longitudinally from the first transverse edge (28) and comprising a surface inclined (44) relative to the general plane (30) at an angle of inclination between 10° and 60°, the inclined surface (44) being able to cooperate with the second transverse edge (32) during the assembly of the lower deflector (24) and the bumper skin.The guide protrusion (42) represents a guide ramp. Figure to be published with the abbreviation: Figure 4.

Description

Title of the invention: Lower deflector and rear bumper skirt for a motor vehicle

[0001] The invention relates to the assembly of a motor vehicle. The invention concerns an interface between a deflector and a bumper skin of a motor vehicle. The invention provides a fairing assembly for a motor vehicle. The invention also relates to a motor vehicle.

[0002] Typically, at the rear, lighting devices are integrated into the bodywork of the motor vehicle. There, they are located next to the bumper and possibly the side fenders. They are also integrated into the rear opening. These rear lighting devices, commonly called taillights, illuminate the area around the vehicle and emit standardized signals to other road users. For safety reasons, the taillights must emit a sufficiently intense beam of light to make the vehicle visible from a predetermined distance. Since the light source of a rear lighting device is susceptible to failure, access must be provided for its replacement.

[0003] A bumper system must meet different criteria depending on the speed of the impact to be absorbed. For example, for a collision speed of 50 km / h, the bumper system absorbs the impact energy using a dedicated shock absorber. The absorber deforms irreversibly. Conversely, for a low-speed impact, the bumper system is designed to absorb the impact without requiring subsequent repair. Low speed refers to an impact at a speed of 10 km / h or less. During this type of impact, the bumper skin deforms elastically upon contact with the obstacle, then returns to its original position without any remaining permanent deformation after the obstacle involved in the collision has moved away.

[0004] Furthermore, the underbody of the motor vehicle commonly features a deflector. The deflector is configured to guide airflow between the underbody and the ground when the motor vehicle is in motion. It masks certain irregularities in the body floor and presents an essentially flat, inclined air surface. This limits the generation of turbulence and reduces primary energy consumption. It also contributes to acoustic comfort.

[0005] Document FR3102120 B1 describes a rear bumper for a motor vehicle. The bumper includes a fairing element and a docking area for an underfloor deflector. The docking area includes two docking platforms projecting from the docking area. Each of the platforms The docking mechanism is designed to work with a deflector mounting bracket to secure each bracket between one of the docking platforms and a mounting claw connected to a structural element of the motor vehicle. The bumper includes a sloping surface connecting the docking area to the docking platform. The rear bumper includes a guide element for centering the underfloor deflector relative to the docking platforms.

[0006] The present solution avoids certain situations of axial stoppage before the bumper skin reaches its assembled position against the deflector. However, there is still a need to avoid other cases of stoppage during the assembly of the bumper skin onto the lower deflector.

[0007] The invention aims to address at least one of the problems or drawbacks encountered in the prior art. In particular, the invention aims to facilitate the assembly of a bumper and a deflector for a motor vehicle. The invention also aims to optimize the cost, weight, and simplification of the assembly of a bumper and a deflector for a motor vehicle.

[0008] According to a first aspect, the invention provides a fairing assembly for a motor vehicle, the fairing assembly comprising: a lower deflector with a first transverse edge, a general plane; a bumper skin having an upper wall extending vertically, a lower wall extending longitudinally inwards and having a second transverse edge running alongside the first transverse edge; notable in that the lower deflector includes a guide protrusion projecting longitudinally from the first transverse edge and comprising a surface inclined with respect to the general plane at an angle of inclination between 10° and 60°, the inclined surface being able to cooperate with the second transverse edge during the assembly of the lower deflector and the bumper skin.

[0009] During assembly, the guide extension and its lower surface cooperate with the edge of the bumper skin. The inclined surface then folds the second transverse edge down to its predefined assembled position. The invention prevents jamming during the alignment of the deflector and the bumper skin. Manual assembly requires less precision from the operator, and therefore saves time. The invention improves ergonomics. The risk of incorrect positioning is reduced. Consequently, the attachment is more secure.

[0010] Preferably, the lower deflector comprises a guide groove in the longitudinal extension of the inclined surface, the lower wall being in said guide groove.

[0011] Preferably, the guide protrusion includes a vertically projecting stiffening rib.

[0012] Preferably, the lower deflector comprises a central panel, the stiffening rib extending longitudinally along the central panel.

[0013] Preferably, the lower wall comprises an upper surface below the inclined surface, the fairing assembly comprising a gap between the upper surface and the inclined surface, the gap increasing from the second transverse edge towards the upper wall.

[0014] Preferably, the angle of inclination is between 30° and 50°.

[0015] Preferably, the lower wall has a curved profile between the upper wall and the second transverse edge, said curved profile being tangent to the general plane at the level of the guide protrusion.

[0016] Preferably, the lower deflector includes a corner with a fixing stud attached to the bumper skin, the guide protrusion extending from said fixing stud.

[0017] Preferably, the lower wall includes a clearance delimited by the second transverse edge, the clearance including an entrance opposite the guide protrusion.

[0018] Preferably, the lower deflector comprises a lateral end, the guide protrusion being transverse to said lateral end.

[0019] Preferably, the lower deflector comprises a first longitudinal edge extending longitudinally to the first transverse edge, the guiding protrusion being aligned longitudinally on the first longitudinal edge.

[0020] Preferably, the inclined surface extends towards the upper wall.

[0021] Preferably, the guide protrusion comprises a length of at least 2 cm.

[0022] Preferably, the guide protrusion comprises a length of at least 4 cm.

[0023] Preferably, the bumper skin comprises a longitudinal end, the vertical wall forming the longitudinal end.

[0024] Preferably, the guide protrusion comprises an end opposite the first transverse edge; said opposite end being vertically at a distance from the lower wall.

[0025] Preferably, the lower deflector comprises a guide angle in the longitudinal extension of the inclined surface and cooperating with the lower wall.

[0026] Preferably, the fixing stud includes a fixing hole.

[0027] Preferably, the clearance extends transversely over at least half of the bumper skin.

[0028] According to another aspect, the invention provides a fairing assembly for a motor vehicle, the fairing assembly comprising: a lower deflector with a first transverse edge, a bumper skin with a vertically extending upper wall, and a longitudinally extending lower wall comprising an upper surface, a second transverse edge running alongside the first transverse edge; notable in that the lower deflector includes a guide arm extending from the first transverse edge along the upper surface towards the upper wall, the guide arm being inclined relative to the upper surface and being adapted to guide the lower wall when it is positioned against the first transverse edge. Such an assembly facilitates mounting.

[0029] According to another aspect, the invention provides a fairing assembly for a motor vehicle, the fairing assembly comprising: a lower deflector with a first transverse edge, a general plane; a bumper skin with a longitudinal end, an upper wall extending vertically, a lower wall extending longitudinally inwards, the lower wall comprising a second transverse edge running alongside the first transverse edge; notable in that the lower deflector comprises a longitudinal projection with a guide surface inclined relative to the general plane at an angle of inclination between 10° and 60°; the guide surface extending longitudinally from the first guide edge along the lower wall in order to cooperate with the second transverse edge during the assembly of the lower deflector and the bumper skin. This assembly facilitates manual assembly.

[0030] According to another aspect, the invention proposes a motor vehicle comprising a fairing assembly; remarkable in that the fairing assembly conforms to the invention.

[0031] Preferably, the bumper skin is a rear bumper skin.

[0032] Preferably, the lower wall is a single piece, the motor vehicle including a lighting device with a light-emitting diode; or the lower wall includes a main part and a removable panel attached to the main part, the motor vehicle including a lighting device with a bulb, the removable panel being transverse to the level of the lighting device.

[0033] Preferably, the lower deflector comprises a longitudinal end, the first transverse edge being at said longitudinal end.

[0034] Preferably, the removable panel includes means for fixing at a distance from the guide protrusion.

[0035] Each feature introduced by the expression "preferably" given in relation to one of the aspects of the invention applies to all other aspects of the invention.

[0036] The invention will be well understood and other aspects and advantages will become clear upon reading the following description, given with reference to the attached figures listed below.

[0037] Fig. 1 is a side view of a motor vehicle according to the invention.

[0038] Figure 2 is a bottom view of an assembly including a lower deflector and a bumper skin for a motor vehicle according to a first embodiment of the invention.

[0039] Fig. 3 is an exploded view showing a wheel arch and a fairing assembly. motor vehicle according to a first embodiment of the invention.

[0040] Figure 4 is an enlargement of an assembly interface between a deflector lower and a bumper skin of a motor vehicle according to a first embodiment of the invention.

[0041] Figure 5 shows one end of a lower deflector of a motor vehicle according to a first embodiment of the invention.

[0042] Figure 6 illustrates a fairing assembly and a vehicle lighting device automobile according to a second embodiment of the invention.

[0043] In the following description, the term "include" is synonymous with "include" and is not limiting in that it permits the presence of other elements in the motor vehicle or the assembly to which it relates. It is understood that the term "include" includes the terms "consist of". The terms "external" and "internal" shall respectively designate what is oriented towards the outside of the vehicle and towards the inside of the vehicle.

[0044] In this description, the terms "longitudinal," "longitudinally," "transverse," and "transversely" are used with respect to the vehicle's frame of reference in the mounting configuration. The term "longitudinal" refers to the principal direction of travel of the vehicle. The term "transverse" refers to a direction perpendicular to the principal direction of travel of the vehicle. The term "front" refers to the principal direction of travel of the vehicle. The term "rear" refers to the opposite of the front of the vehicle.

[0045] The X-axis represents the longitudinal direction, the Y-axis represents the transverse direction, and the Z-axis represents the vertical direction of the motor vehicle. These three axes define a right-handed trihedron whose orientation is preserved throughout the figures.

[0046] In this description, the ranges of values ​​include the bounds that delimit them.

[0047] In this description, the terms "vertical" and "horizontal" are not to be understood in their strict sense. Indeed, they allow an inclination of at most 20°, preferably at most 10°, more preferably at most 5°, and even more preferably at most 2°; with respect to the strict meaning of these terms.

[0048] In this description, the technical characteristics are defined in the assembly mounting configuration, unless otherwise explicitly stated.

[0049] Throughout the description, the different figures use the same reference signs to designate identical or similar entities.

[0050] Figure 1 represents a motor vehicle 10, according to an embodiment of the invention. The motor vehicle 10 comprises energy storage means and at least one motor (not shown) adapted to drive said motor vehicle 10.

[0051] The motor vehicle 10 comprises a structure 12. The structure 12 forms an outer body, or the main frame of the motor vehicle. The structure 12 delineates different compartments of the motor vehicle 10, including the passenger compartment, the cargo area, and the engine compartment (not shown). The structure 12 may be formed from an assembly of stamped and welded sheet metal parts.

[0052] The structure 12 connects various parts of the motor vehicle 10, including the openings. The structure 12 forms a mounting support for the powertrain, suspension systems, steering system, braking systems, bumper systems 14, and rear bumper system.

[0053] Each bumper system 14 includes metallic or plastic shock absorbers. These shock absorbers are covered by a bumper skin 16. The bumper skin 16 forms an outer casing. It materializes as a veil. Its positioning accuracy contributes to the perceived quality through the mechanical clearances it defines with adjacent entities.

[0054] The bumper skin 16 is essentially flexible. It is capable of reversibly deforming in the event of a low-speed impact, for example, during a parking maneuver. The bumper skin 16 connects the rear wheel arches. It extends to the underbody. The bumper skin 16 includes a lower skirt. The bumper skin 16 comprises an upper wall 18 and a lower wall 20. The upper wall 18 extends vertically. Longitudinally, it forms the outer end of the bumper skin 16.

[0055] The motor vehicle 10 further includes a lighting device 22. The lighting device 22 is capable of emitting light radiation. It includes an electric light source, for example a light bulb or a light-emitting diode; Generally referred to by the acronym LED, which stands for "Light-Emitting Diode," the lighting device 22 is capable of illuminating the vehicle's surroundings and generating a regulatory light signal. The lighting device 22 is integrated into the bumper cover 16.

[0056] The motor vehicle 10 includes a lower deflector 24. The lower deflector 24 is preferably a rear lower deflector. It is attached to the underbody. It is arranged under the passenger compartment floor. It is an underfloor deflector. It forms a generally flat and smooth panel. The lower deflector 24 extends longitudinally over at least one-quarter, preferably at least one-third, of the length of the structure 12. Its surface follows the airflow under the body when the vehicle is in motion. Its contribution to aerodynamics reduces engine power consumption.

[0057] The lower deflector 24 and the bumper skin 16 generally form a single unit, such as a fairing assembly 26. The fairing assembly 26 is understood as an assembly forming a contoured cover over components of the motor vehicle. It may be a protective assembly.

[0058] The motor vehicle can, for example, be a private motor vehicle or a commercial motor vehicle.

[0059] Figure 2 shows a fairing assembly 26 for a motor vehicle, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to Figure 1. The present fairing assembly 26 is a rear fairing assembly.

[0060] The fairing assembly 26 comprises, on the one hand, a bumper skin 16 and, on the other hand, a lower deflector 24. The lower deflector 24 covers various vehicle components. It covers an exhaust system in the case of an internal combustion engine, or a battery pack in the case of an electric motor. The lower deflector 24 forms a horizontal panel. It is essentially smooth. It has recesses with mounting holes. The lower deflector 24 has a first transverse edge 28 and a general plane 30. The first transverse edge 28 is generally horizontal. It may be a rear edge and form a longitudinal end. It is straight or serrated. The general plane 30 is a mid-plane. It may be a main plane. It is optionally horizontal.

[0061] The bumper skin 16 has an upper wall 18 extending vertically and a lower wall 20 extending longitudinally inwards. In this case, the lower wall 20 extends forwards from the upper wall 18. The lower wall 20 has a second transverse edge 32 running parallel to the first transverse edge 28. The second transverse edge 32 lies longitudinally against the first edge Transverse 28. They are parallel and / or of complementary shapes. They form an assembly interface.

[0062] Longitudinally, the bumper skin 16 comprises a first end 34 and a second end 36; which are, for example, a front end and a rear end. They are respectively formed by the lower wall 20 and the upper wall 18.

[0063] The lower wall 20 includes a recess 38 delimited by the second transverse edge 32. The recess 38 is a longitudinal recess. It forms a cutout. It extends primarily transversely. It extends from the first end 34. The recess 38 includes an inlet 40 opposite a guide protrusion. The inlet 40 is on the side of the first end 34. The recess 38 extends transversely over at least half of the bumper skin 16. The lower deflector 24 closes the recess 38.

[0064] In the present embodiment, the lower wall 20 is a single piece. It is made from a single piece of material. It is produced by molding. The motor vehicle includes a rear light unit with a light-emitting diode (not shown). The compactness of such a light source allows its replacement via remote physical access to the bumper skin 16, for example from the outside.

[0065] According to an alternative embodiment of the invention, the bumper skin is a front bumper skin. The fairing assembly is a front fairing assembly.

[0066] Figure 3 shows a fairing assembly 26 for a motor vehicle, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 2. A wheel arch of the structure 12 is shown, as well as a rear crossmember forming a shock absorber.

[0067] The lower deflector 24 includes a guide protrusion 42 projecting longitudinally from the first transverse edge 28. The guide protrusion 42 is a longitudinal protrusion. It generally forms a branch or a wing. It serves as a guide ramp. The guide protrusion 42 includes a surface inclined relative to the general plane 30 at an angle of inclination between 10° and 60°. The guide protrusion 42, in particular the inclined surface, is adapted to cooperate with the second transverse edge during the assembly of the lower deflector 24 and the bumper skin 16.

[0068] In other words, the lower deflector 24 comprises a guiding protrusion 42 with an inclined surface extending longitudinally along the lower wall 20. The inclined surface is oblique to a horizontal direction. It is inclined to the general plane 30 at an angle of inclination between 10° and 60°. It extends towards the upper wall 18. The inclined surface forms an obstacle orienting the second transverse edge vertically towards the first when the bumper skin 16 is pushed longitudinally towards the inside of the vehicle.

[0069] According to an alternative of the invention, the guide protrusion is under the lower wall.

[0070] Figure 4 shows a fairing assembly 26 for a motor vehicle, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 3. A rear shock absorber carrying a rear crossmember is shown. The bumper skin 16, in particular the upper wall 18, runs along the rear crossmember.

[0071] The fairing assembly 26 comprises a lower deflector 24 extended rearward by a bumper skin 16. The lower deflector 24 includes a guide protrusion 42 projecting longitudinally from the first transverse edge 28. The guide protrusion 42 includes a surface inclined 44 with respect to the general plane 30 at an angle of inclination between 10° and 60°. The inclined surface 44 is adapted to cooperate with the second transverse edge 32 during the assembly of the lower deflector 24 and the bumper skin 16.

[0072] The lower wall 20 comprises a lower surface oriented towards the ground, and an upper surface 46 opposite the lower surface. The first transverse edge 28 forms a longitudinal end of the lower deflector 24. The lower wall 20 generally has a constant thickness. The inclined surface 44 extends towards the upper wall 18. The guide protrusion 42 points towards the upper wall 18.

[0073] The guide protrusion 42 forms a guide arm. In other words, the lower deflector 24 includes a guide arm extending from the first transverse edge 28 along the upper surface of the lower wall, towards the upper wall 18. The guide arm is inclined with respect to the upper surface 46 and is capable of deflecting the lower wall when it deviates from its reference position with respect to the first transverse edge 28.

[0074] The lower deflector 24 includes a guide groove 48. The guide groove 48 extends longitudinally. It is open transversely to the outside. It is formed by an angle bracket. The guide groove 48 is raised relative to the general plane 30. The guide groove 48 is in the longitudinal extension of the inclined surface 44 of the guide protrusion 42. The lower wall 20, in particular one of its longitudinal edges, referred to as the second longitudinal edge 50, is in said guide groove. Thus, after being guided by the guide protrusion 42, the second longitudinal edge 50 enters the guide groove 48 into its assembly position. This configuration facilitates the assembly of the fairing assembly 26.

[0075] The inclined surface 44 is generally a guide surface. The fairing assembly 26 has a gap 52 between the upper surface 46 and the surface inclined 44. The gap 52 is a vertical gap. The height of the gap 52 increases from the second transverse edge 32 towards the upper wall 18. The gap 52 increases continuously. It can be zero at the second transverse edge 32.

[0076] The lower wall 20 has a curved profile 54 between the upper wall 18 and the second transverse edge 32. The curved profile 54 forms an arc of a circle. The curved profile 54 lies in a plane extending vertically and longitudinally. The curved profile 54 changes shape along the transverse direction. For example, the radii of curvature of the curved profiles decrease towards the center. Each curved profile 54 is tangent to the general plane 30 at the guide protrusion 42. This feature optimizes guidance against the guide protrusion 42.

[0077] The lower deflector 24 comprises a first longitudinal edge 56 extending longitudinally to the first transverse edge 28. The guide protrusion 42 is aligned longitudinally with the first longitudinal edge 56. The first longitudinal edge 56 is in the longitudinal extension of the guide protrusion 42. It is parallel to, and runs along, the second longitudinal edge 50 of the lower wall 20.

[0078] Figure 5 shows a lower deflector 24 of a motor vehicle, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 4. In this case, a rear corner of the lower deflector 24 is shown.

[0079] The lower deflector 24 includes a guiding protrusion 42 projecting longitudinally from the first transverse edge 28 and comprising a surface inclined 44 with respect to the general plane 30 at an angle of inclination 60°. The angle of inclination 60° is between 10° and 60°. Preferably, the angle of inclination 60° is between 30° and 50°; more preferably, the angle of inclination 60° is between 40° and 45°. These values ​​of the angle of inclination 60° optimize the compactness and the support provided by the inclined surface 44. They facilitate the sliding of the second transverse edge during assembly.

[0080] The guide protrusion 42 comprises two ends that are longitudinally distant. One of them is an end 58 opposite the first transverse edge 28. Said opposite end 58 is vertically distant from the lower wall, and in particular from the upper surface.

[0081] The lower deflector 24 includes a guide groove 48 in the longitudinal extension of the inclined surface 44. The guide groove 48 is a lateral groove. It has a vertical band and a horizontal band both above and transversely outward from the vertical band. It provides support against the lower wall when it is seated there. The guide groove 48 forms an angle bracket which itself forms an edge of the lower deflector 24. Thus, the lower deflector 24 includes a guide angle in the longitudinal extension of the inclined surface 44 and cooperating with the lower wall. The angle's shape contributes to rigidity.

[0082] The guide protrusion 42 includes a stiffening rib 62. The stiffening rib 62 extends longitudinally. The stiffening rib 62 projects vertically above the inclined surface 44. The lower deflector 24 includes a central panel 64. It forms a main screen. It is generally horizontal. The stiffening rib 62 extends longitudinally along the central panel 64. The stiffening rib 62 extends along the guide groove 48 and / or the guide angle.

[0083] The lower deflector 24 includes a corner 66 with a mounting stud 68 fixed to the bumper skin (not shown). The guide protrusion 42 extends from said mounting stud 68. The mounting stud 68 includes a mounting hole 70. The lower wall includes additional assembly means fixed to said mounting hole 70. Thus, the guide protrusion 42 facilitates the alignment of the additional assembly means with the mounting hole 70. This reduces the risk of assembly defects.

[0084] The lower deflector 24 includes a lateral end 72. The guide protrusion 42 is transverse to the lateral end 72. This positioning provides guidance to the eccentric areas. This compensates for the flexibility of the bumper skin when an operator handles it by holding it in the middle.

[0085] The guide protrusion 42 comprises a length 74 of at least 2 cm; preferably, at least 4 cm. The length 74 is less than 10 cm, preferably 6 cm. The length 74 is an average length. It is measured between the first transverse edge 28 and the opposite end 58. The length 74 optimizes compactness and the guiding effect, thus enhancing the assembly assistance provided. The guide protrusion 42 has a width less than the length 74, which contributes to compactness and lightness.

[0086] Figure 6 shows a fairing assembly 26 for a motor vehicle, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 4. The fairing assembly 26 is substantially identical to those shown in the preceding figures. However, it differs from them in that the lower wall 20 is split.

[0087] The lower wall 20 comprises a main part 76 and a movable panel 78 connected to the main part 76. The main part 76 extends transversely over the entire width of the lower wall 20, preferably the entire width of the skin of bumper 16. The movable panel 78 is transversely between the lower deflector 24 and the main part 76. It optionally forms a pivoting flap.

[0088] The movable panel 78 includes connecting means 80 at a distance from the guide protrusion 42. The connecting means 80 include, for example, a hinge. They optionally include hooks cooperating with the main part 76. The guide protrusion 42 extends at a distance, projecting towards the opposite side of the movable panel 78.

[0089] The motor vehicle includes a light device 22 with a bulb (not shown). The movable panel 78 is transverse to the light device 22. This facilitates bulb replacement when necessary. The configuration of the guide protrusion 42 does not obstruct access to the light device 22.

[0090] It can be observed that the lower deflector 24, in particular the guiding protrusion 42, is identical between the two embodiments of the invention. Thus, the invention provides a solution adaptable to different configurations and different finishes of motor vehicles. This allows for economies of scale.

[0091] According to a preferred embodiment, the lower deflector 24 is made of a plastic or composite material. The plastic material may include a thermoplastic or thermosetting material. According to a preferred embodiment, the plastic material is selected from the group comprising polypropylene, polyamide, polyphthalamide, polyetheretherketone, polyphenylene sulfide, polyamide-imide, polyetherimide, polyarylamide, polyepoxide, unsaturated polyester, vinyl ester, or polyester-vinylester resins. For example, the composite material comprises a matrix of a plastic material as described above with reinforcement. For example, the reinforcement comprises glass or carbon fibers.

[0092] The lower deflector 24 comprises at least 10% by weight of recycled plastic material based on the total weight of the plastic material; preferably from 10 to 80% by weight; more preferably from 20 to 60% by weight or from 30 to 40% by weight. The use of recycled plastic material reduces the vehicle's environmental footprint.

[0093] The invention comprises the combination of all the embodiments illustrated by all the figures.

[0094] Figures 2 to 6 are isometric views. They each respect a specific scale, real angles and real proportions.

Claims

Demands

1. Fairing assembly (26) for motor vehicle (10), the fairing assembly (26) comprising: a lower deflector (24) with a first transverse edge (28), a general plane (30); a bumper skin (16) having an upper wall (18) extending vertically, a lower wall (20) extending longitudinally inwards and having a second transverse edge (32) running alongside the first transverse edge (28); characterized in that the lower deflector (24) includes a guide protrusion (42) projecting longitudinally from the first transverse edge (28) and comprising a surface inclined (44) with respect to the general plane (30) at an angle of inclination (60) between 10° and 60°, the inclined surface (44) being able to cooperate with the second transverse edge (32) during the assembly of the lower deflector (24) and the bumper skin (16).

2. Fairing assembly (26) according to claim 1, characterized in that the lower deflector comprises a guide groove (48) in the longitudinal extension of the inclined surface (44), the lower wall (20) being in said guide groove (48).

3. Fairing assembly (26) according to any one of claims 1 to 2, characterized in that the guide protrusion (42) comprises a stiffening rib (62) projecting vertically; preferably, the lower deflector (24) comprises a central panel (64), the stiffening rib (62) extending longitudinally along the central panel (64).

4. Fairing assembly (26) according to any one of claims 1 to 3, characterized in that the lower wall (20) comprises an upper surface (46) below the inclined surface (44), the fairing assembly (26) comprising a gap (52) between the upper surface (46) and the inclined surface (44), the gap (52) increasing from the second transverse edge (32) towards the upper wall (18), preferably, the angle of inclination (60) is between 30° and 50°

5. Jv. Fairing assembly (26) according to any one of claims 1 to 4, characterized in that the lower wall (20) has a curved profile (54) between the upper wall (18) and the second transverse edge (32), said curved profile (54) being tangent to the general plane (30) at the level of the guiding protrusion (42).

6. Fairing assembly (26) according to any one of claims 1 to 5, characterized in that the lower deflector (24) comprises a corner (66) with a fixing stud (68) fixed to the bumper skin (16), the guide protrusion (42) extending from said fixing stud (68).

7. Fairing assembly (26) according to any one of claims 1 to 6, characterized in that the lower wall (20) includes a clearance (3) delimited by the second transverse edge (32), the clearance including an inlet (40) opposite the guide protrusion (42).

8. Fairing assembly (26) according to any one of claims 1 to 7, characterized in that the lower deflector (24) comprises a lateral end (72), the guide protrusion (42) being transverse to said lateral end (72); preferably, the lower deflector (24) comprises a first longitudinal edge (56) extending longitudinally to the first transverse edge (28), the guide protrusion (42) being aligned longitudinally with the first longitudinal edge (56).

9. Motor vehicle (10) comprising a fairing assembly (26); characterized in that the fairing assembly (26) conforms to any one of claims 1 to 8; preferably, the bumper skin (16) is a rear bumper skin.

10. Motor vehicle (10) according to claim 9, characterized in that the lower wall (20) is a single piece, the motor vehicle (10) comprising a lighting device (22) with a light-emitting diode; or the lower wall (20) comprises a main part (76) and a removable panel (78) attached to the main part (76), the motor vehicle (10) comprising a lighting device with a bulb, the removable panel (78) being transverse to the lighting device.

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