Structure with rear vehicle seat belt support

Abstract

Motor vehicle structure (12); the structure (12) comprising: a rear wheel arch; a partition (26) delimiting the rear wheel arch, the partition (26) comprising an upper surface (28); a mounting bracket (20) for a rear seat belt retractor above the rear wheel arch, said mounting bracket (20) comprising a lower surface (34) opposite the upper surface (28); the structure (12) further comprising a mounting insert (36) with adhesive means (56) between the lower surface (34) and the upper surface (28), said adhesive means (56) being configured to connect the partition (26) to the mounting bracket (20). Figure to be published with the abbreviation: Figure 3

Description

Title of the invention: Structure with rear seat belt support for motor vehicle

[0001] The invention relates to the assembly between the underbody and the superstructure of a motor vehicle. The invention concerns a rear seat belt anchor point for a motor vehicle. More specifically, the invention relates to a motor vehicle structure with a seat belt support on a wheel arch. The invention also relates to a motor vehicle.

[0002] During vehicle assembly, known as body-in-white assembly, the underbody is permanently and securely attached to the upper body structure before other equipment is installed inside the vehicle body. Some components, however, are pre-mounted on the underbody or the upper structure and then come into direct contact or are in close proximity during the underbody-upper structure assembly. In some cases, it is necessary to provide clearance between two components respectively positioned on the underbody and on the upper structure. It is then necessary to create a connection between these two sub-assemblies that meets the dynamic and static stiffness requirements of the assembly and to ensure a fit within the tolerance ranges.In particular, it is necessary to respect the tolerance intervals in the environment of the rear wheel arch, as elements such as the partitions and reinforcing parts of said rear wheel arch are present on the underbody, and after assembly are found in the immediate vicinity of the rear seat belt retractor support, which is itself supported by the upper structure.

[0003] Document FR3102449 describes a side panel arrangement for a motor vehicle body structure, comprising a first sheet metal piece. An inflatable insert completely covers the upper surface of this first sheet metal piece and includes a rigid support of the same shape and dimensions as the first sheet metal piece, as well as a sealing bead extending along the peripheral contour of the lower surface of the support and made of a material capable of inflating when heated to a predetermined temperature. The inflation creates a physical and acoustic barrier between the external environment and the cavities of the vehicle structure. The quarter panel liner comprises an upper and a lower portion, against the inner and outer faces of which a rear seat belt retractor bracket and the upper portion of a rear fender liner are respectively welded.There is a need to improve the respect for the games between the different elements.

[0004] Document FR3102437 describes a connection between a rear wheel arch and a seat belt retractor comprising an elongated part including at least one retractor mounting hole and reinforcing ribs, and having an outer edge intended to be welded to a portion of the wheel arch. The retractor support also includes an extension plate. This plate has a circular hole at its front end for attaching it to a rear wheel arch reinforcement. There is a need to optimize the assembly between the underbody and the superstructure while respecting the tolerance ranges.

[0005] A method for joining at least one rear wheel arch and at least one rear seat latch reinforcement of the vehicle is also known. This method consists of welding a connecting piece to a rear wheel arch and then welding the rear seat latch reinforcement to the connecting piece. However, the need to weld parts requires suitable tooling and skilled personnel, and introduces a delay in vehicle assembly, all of which contribute to increasing the assembly cost.

[0006] The invention aims to address at least one of the problems or drawbacks encountered in the prior art. In particular, the invention aims to improve the quality of the assembly of a motor vehicle. The invention also aims to optimize the rigidity of a motor vehicle structure and the number of fastening operations.

[0007] According to a first aspect, the invention proposes a motor vehicle structure; the structure comprising: a rear wheel arch; a partition delimiting the rear wheel arch, the partition comprising an upper surface; a rear seat belt retractor mounting support above the rear wheel arch, said mounting support comprising a lower surface opposite the upper surface; notable in that the structure further comprises a mounting insert with adhesive means between the lower surface and the upper surface, said adhesive means being configured to connect the partition to the mounting support.

[0008] It will be understood that the invention proposes a structural insert placed between the rear wheel arch partition and the roller support, so as to ensure the connection between the partition and the roller support.

[0009] The invention adds an adhesive insert between the seat belt support and its wheel arch. The insert provides additional fastening without requiring any additional fastening steps. Correct vehicle assembly is ensured, thus maintaining the quality of the motor vehicle.

[0010] Patent EP1412226 describes a method for soundproofing a hollow body, such as part of a motor vehicle body. This method consists of filling the hollow body with at least one open-cell foam. According to this document, At least part of the body is filled by pouring foam flakes into it. This does not in any way ensure that any play is maintained between two pieces.

[0011] Preferably, the adhesive means comprise foam.

[0012] Preferably, the structure has a vertical separation between the partition and the fixing support, said vertical separation extending over the entire length of the fixing support, the adhesive means passing vertically through said vertical separation.

[0013] Preferably, the adhesive means comprise a first adhesive face glued to the lower surface, and a second adhesive face glued to the upper surface.

[0014] Preferably, the fixing insert comprises a reinforcement extending into the adhesive means.

[0015] Preferably, the partition comprises an upper portion forming the upper surface, and a front portion; the structure further comprises a reinforcing piece fixed to the front portion; the reinforcing piece includes fixing holes cooperating with the fixing insert, and / or the fixing insert includes fixing means cooperating with the reinforcing piece.

[0016] Preferably, the reinforcing piece includes an opening, the fixing insert passing through said opening.

[0017] Preferably, the opening is longitudinally away from the adhesive means.

[0018] Preferably, the mounting support comprises an upper horizontal face intended to be attached to the belt retractor, and a lower horizontal flange forming the lower surface; the adhesive means being glued to said lower horizontal flange.

[0019] Preferably, the fixing insert comprises a vertical arm extending from the lower surface, the vertical arm being vertically away from the adhesive means.

[0020] Preferably, the lower surface and the upper surface are parallel.

[0021] Preferably, the upper surface forms the top of the wheel arch.

[0022] According to a second aspect, the invention proposes a motor vehicle comprising a structure, remarkable in that the structure conforms to the invention and in that the structure includes a vertical gap between the lower surface and the upper surface, said vertical gap comprising a height between 5 mm and 15 mm.

[0023] According to a third aspect, the invention provides a method for assembling a motor vehicle structure, the assembly method comprising the following steps: a) assembly of a unit comprising a rear wheel arch; a partition delimiting the rear wheel arch, the partition comprising a surface upper; a rear seat belt retractor mounting bracket above the rear wheel arch, said mounting bracket comprising a lower surface opposite the upper surface; notable in that the method further comprises the steps b) insertion of an expandable mounting insert between the lower surface and the upper surface, said expandable mounting insert comprising adhesive means; said adhesive means being configured to connect the partition to the mounting bracket; c) expansion of the adhesive means between the partition and the mounting bracket to connect them; d) bonding of the adhesive means to the lower surface and / or the upper surface.

[0024] Preferably, step c) expansion includes a substep of applying paint to the structure.

[0025] Preferably, step a) assembly includes a sub-step of making a base including the rear wheel arch and the partition delimiting the rear wheel arch; a sub-step of making a superstructure including a side pillar, the fixing support being connected to the side pillar; a sub-step of fixing the superstructure to the base by positioning the fixing support above the wheel arch.

[0026] 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.

[0027] 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.

[0028] Fig. 1 is a side view of a motor vehicle according to the invention.

[0029] Fig. 2 shows a portion of the structure of a motor vehicle according to the invention.

[0030] Fig. 3 represents a longitudinal cross-sectional view of a rear wheel arch assembly for a motor vehicle according to the invention.

[0031] Fig. 4 is a diagram of a method for assembling a motor vehicle according to the invention.

[0032] 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 other steps in the process 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 directed outward from the vehicle and inward from the vehicle.

[0033] 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" This corresponds to the vehicle's main direction of travel. The term "transverse" refers to a direction perpendicular to the vehicle's main direction of travel. The term "front" refers to the vehicle's main direction of travel. The term "rear" refers to the opposite of the front of the vehicle.

[0034] 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.

[0035] In this description, the ranges of values ​​include the bounds that delimit them.

[0036] In the present description, the equality between the values ​​is not to be understood in the strict sense insofar as each equality allows a variation of at most 10%, preferably at most 5%, more preferably at most 2%, between these values.

[0037] 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.

[0038] In this description, the technical characteristics are defined in the assembly mounting configuration, unless otherwise explicitly stated.

[0039] Throughout the description, the different figures use the same reference signs to designate identical or similar entities.

[0040] Figure 1 represents a motor vehicle 10 according to the invention. The motor vehicle 10 comprises energy storage means and at least one motor (not shown) adapted to drive said motor vehicle 10.

[0041] 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 delimits various compartments of the motor vehicle 10, including the passenger compartment 14, the cargo area, and the engine compartment (not shown). The passenger compartment 14 has front seats and rear seats 16. The rear seats 16 are equipped with seat belts (not shown). Each seat belt comprises a webbing that is tensioned by a retractor 18.

[0042] The rear seat belt retractors 18 are generally attached to the vehicle structure 12 by means of a retractor mounting bracket 20, so that the stresses experienced by the belt webbing when it is locked are transmitted to the entire structure 12 via a lateral pillar. This lateral pillar is a rear pillar.

[0043] The motor vehicle 10 comprises a subframe 22. The subframe 22 includes rear wheel arches 24. Each of these rear wheel arches 24 is delimited by a partition 26. Each partition 26 surrounds a rear wheel arch 24. The partition 26 includes an upper surface 28. The upper surface 28 is generally horizontal. The upper surface 28 forms a platform. The rear wheel arch 24 extends vertically beneath the upper surface 28.

[0044] A reinforcing piece 30 is fixed to the partition 26. The reinforcing piece 30 extends transversely against the partition 26 and the fixing support 20. The reinforcing piece 30 connects the partition 26 and the fixing support 20.

[0045] During the assembly of the motor vehicle 10, the structure 12 is formed by joining an upper structure 46 and the subframe 22. The upper structure 46, as well as the elements directly attached to it such as the mounting bracket 20, is placed on the subframe 22. The clearances between the upper structure 46 and the subframe 22 must be precisely adjusted to ensure the rigidity of the assembly of the motor vehicle 10. More specifically, the elements supported by the upper structure 46, such as the mounting bracket 20, and the opposing elements supported by the subframe 22, such as the partition 26 and the reinforcing piece 30, have a precisely defined clearance.

[0046] The motor vehicle can, for example, be a private motor vehicle or a commercial motor vehicle.

[0047] Figure 2 shows a portion of structure 12 of a motor vehicle. The motor vehicle may correspond to the one shown in relation to Figure 1. The seat belt retractor is not shown for clarity.

[0048] The partition 26 comprises an upper portion 66 forming the upper surface 28, and a front portion 32 extending below the upper surface 28. The reinforcing piece 30 is fixed to the upper surface 28 and to the front portion 32. The reinforcing piece 30 generally extends vertically. The reinforcing piece 30 extends longitudinally against the front portion 32 and transversely across the upper surface 28. The reinforcing piece 30 extends longitudinally against the fixing support 20.

[0049] The reinforcing piece 30 comprises a front face 42 extending transversely and vertically. The front face 42 is a frontal face. The reinforcing piece 30 comprises a lateral face 44 extending longitudinally. The front face 42 is above the upper surface 28. The front face 42 extends vertically from the upper surface 28. The lateral face 44 is transversely attached to the front portion 32.

[0050] The mounting bracket 20 comprises a lower surface 34, opposite the upper surface 28. They are perpendicular to each other. The lower surface 34 is generally flat. Preferably, the lower surface 34 and the upper surface 28 are horizontal.

[0051] The mounting bracket 20 includes an upper horizontal face 68 intended to be attached to the belt retractor. The upper horizontal face 68 forms the top of the mounting bracket 20.

[0052] A fastening insert 36 is placed between the lower surface 34 and the upper surface 28. The fastening insert 36 connects the lower surface 34 to the upper surface 28. It is fixed there. It includes fastening means fixed to the upper surface 28 and to the lower surface 34.

[0053] The reinforcing piece 30 includes an opening 38 that cooperates with the fastening insert 36. During assembly, the fastening insert 36 is positioned on the upper surface 28 by being inserted through the reinforcing piece 30 via the opening 38. The opening 38 includes guiding means 62 that ensure the correct positioning of the fastening insert 36. The opening 38 is longitudinally open.

[0054] The fastening insert 36 includes one or more fastening means 40 that allow the initial fastening of the fastening insert 36 to the reinforcement piece 30. The fastening means 40 allow at least temporary fastening. The fastening means 40 may include at least one hook. The fastening means 40 interact with the front face 42. The reinforcement piece 30 includes fastening holes that cooperate with the fastening insert 36. The fastening holes are complementary to the fastening means 40.

[0055] Figure 3 shows a longitudinal cross-sectional view at the level of the fixing insert, of a rear wheel arch assembly for a motor vehicle. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 2.

[0056] The structure 12 has a vertical separation 54, vertically between the partition 26 and the mounting bracket 20, said vertical separation 54 extending along the entire length of the mounting bracket 20. The vertical separation 54 forms a vertical gap 72 between the lower surface 34 and the upper surface 28, said vertical gap 72 having a height between 5 mm and 15 mm. This vertical gap allows for the consideration of geometric variations in the different elements, as well as the oscillations of the assembly robots handling the base and the upper structure.

[0057] The fastening insert 36 includes a plate 48 between the lower surface 34 and the upper surface 28. The plate 48 extends horizontally and essentially longitudinally. It forms a stiffening core for the fastening insert. The plate 48 passes through the opening 38. The fastening insert 36 includes a gripping tab 50. The gripping tab 50 is vertically and longitudinally spaced away from the plate 48.

[0058] A vertical arm 52 extends vertically to connect the plate 48 to the gripping tab 50. The gripping tab 50 is used during assembly to insert the fastening insert 36, more specifically the plate 48, into the opening 38. The guiding means 62 are configured to allow the correct positioning of the plate 48 by an operator. The guiding means 62 include, for example, a cross-section of the plate 48 that has a shape complementary to the opening 38. This reduces the risk of assembly errors.

[0059] The fixing insert 36 carries adhesive means 56. Said adhesive means 56 are configured to connect the partition 26 to the fixing support 20. The adhesive means 56 pass vertically through the vertical partition 54. The plate 48 is a frame extending into the adhesive means 56. The vertical arm 52 is vertically spaced from the adhesive means 56. The opening 38 is longitudinally spaced from the adhesive means 56.

[0060] The adhesive means 56 comprise a first adhesive face 58 bonded to the lower surface 34, and / or a second adhesive face 60 bonded to the upper surface 28. The adhesive means 56 are attached to the plate 48. The adhesive means 56 comprise, for example, a polyurethane foam.

[0061] According to an alternative of the invention, prior to bonding, the adhesive means comprise an epoxy resin.

[0062] According to an alternative of the invention, the adhesive means comprise an adhesive film.

[0063] The mounting support 20 comprises a horizontal lower flange 70 forming the lower surface 34. The adhesive means 56 are against the horizontal lower flange 70. The horizontal lower flange 70 is vertically opposite the upper horizontal face 68. The horizontal lower flange 70 and the upper portion 66 are connected, directly or indirectly, by the adhesive means 56. The plate 48 is between the upper portion 66 and the horizontal lower flange 70.

[0064] According to an alternative or option of the invention, the fixing insert includes fixing pins fixed to the lower surface or the upper surface.

[0065] According to an alternative of the invention, the adhesive means are glued to only one of the lower and upper surfaces.

[0066] According to an alternative of the invention, the adhesive means are separated from the lower surface or the upper surface, in particular by the plate.

[0067] The adhesive means 56 comprise foam. Said foam is heat-expandable. The foam increases its initial size upon expansion. The foam is configured to expand from 90% to 500% under the effect of heat. Preferably, the foam expands from 95% to 150% under the effect of heat; more preferably, the foam expands from 95% to 105% under the effect of heat. The expanded adhesives 56 possess characteristics that ensure the structural stability of the assembly over time and contribute to its rigidity. Once expanded, the foam is hard, rigid, and provides the mechanical strength of the assembly. The adhesives 56 are made of a thermoplastic or thermosetting material, selected from the group including polypropylenes, polyamides, polyphthalamides, polyetheretherketones, polyphenylene sulfides, polyamide-imides, polyetherimides, polyarylamides, polyepoxides, unsaturated polyesters, vinyl esters, and polyester-vinylesters. For example, the composite material comprises a matrix of a plastic material as described above with reinforcement. For example, the plastic material is polyamide PA66, including fiber reinforcement. For example, the reinforcement comprises glass or carbon fibers.

[0068]

[0069] The remainder of the fastening insert 36, namely the gripping tab 50, the vertical arm 52, and the plate 48, is made of a rigid injected plastic or composite material. The plastic material may be a thermoplastic or a thermosetting material. In 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.

[0070] Figure 4 shows a diagram of a method for assembling a motor vehicle according to the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 3. The assembly corresponds to one of the preceding figures.

[0071] The assembly process comprises the following steps:

[0072] a) assembly 100 of a set comprising a rear wheel arch; a partition delimiting the rear wheel arch, the partition comprising an upper surface; a rear seat belt retractor mounting bracket above the rear wheel arch, said mounting bracket comprising a lower surface opposite the upper surface.

[0073] b) insertion 102 of an expandable fixing insert between the lower surface and the upper surface, said expandable fixing insert comprising adhesive means; said adhesive means being configured to connect the partition to the fixing support.

[0074] c) expansion 104 of the adhesive means between the partition and the fixing support in order to connect them.

[0075] d) bonding 106 of the adhesive means to the lower surface and / or the upper surface.

[0076] Step a) assembly 100 comprises a substep 110 of realization of a underbody including the rear wheel arch and the partition delimiting the rear wheel arch; a sub-step of realization 112 of a superstructure comprising a lateral pillar, the fixing support being connected to the lateral pillar; a sub-step of fixing 114 of the superstructure to the underbody by positioning the fixing support above the wheel arch.

[0077] Furthermore, the fixing support is connected by screwing or welding to the reinforcing piece, thus contributing to the connection between the base and the upper structure.

[0078] In step b) 102 insertion, an operator inserts the fastening insert into the opening of the reinforcement piece, holding it by the gripping tab. The operator's precise positioning of the fastening insert is ensured by the complementary shapes of the opening in the reinforcement piece and the fastening insert itself. The operator then connects the fastening means of the fastening insert to the fastening holes in the reinforcement piece. This provides temporary fixation of the fastening insert in its precise location, pending final fixation in step d) gluing 106. In this way, and notwithstanding the movement of the assembly on the production line, the fastening insert remains correctly positioned and the quality of the final assembly is maintained.

[0079] Step c) 104 includes a substep of applying paint 108 to the structure. The substep of applying paint 108 to the structure can be carried out by cataphoresis in a paint bath. The paint is dried by polymerization in an oven, for example at a temperature between 160 and 210°C for 30 to 90 minutes.

[0080] This will lead to the polymerization of the adhesive, which will expand and fill the space between the partition and the fixing support. The increase and maintenance of temperature activate the expansion of the precursor of the adhesive, causing it to transform into a foam. Thus, it swells and its volume multiplies. After swelling, the expanded adhesive hardens under the action of heat and acquires structural rigidity characteristics that ensure the mechanical strength of the assembly.

[0081] Once expanded, at step d) bonding 106, the adhesive means will stick to the sheet metal and secure the fixing support with the partition.

[0082] The invention comprises the combination of all the embodiments illustrated by all the figures.

[0083] Figures 2 and 3 are isometric views. They each respect a specific scale, real angles and real proportions.

Claims

Demands

1. Structure (12) of a motor vehicle (10); the structure (12) comprising: a rear wheel arch (24); a partition (26) delimiting the rear wheel arch (24), the partition (26) comprising an upper surface (28); a rear seat belt retractor mounting bracket (20) above the rear wheel arch (24), said mounting bracket (20) comprising a lower surface (34) opposite the upper surface (28); characterized in that the structure (12) further comprises a mounting insert (36) with adhesive means (56) between the lower surface (34) and the upper surface (28), said adhesive means (56) being configured to connect the partition (26) to the mounting bracket (20).

2. Structure (12) according to claim 1, characterized in that the adhesive means (56) comprise foam; preferably, the structure (12) has a vertical separation (54) between the partition (26) and the fixing support (20), said vertical separation (54) extending over the entire length of the fixing support (20), the adhesive means (56) passing vertically through said vertical separation (54).

3. Structure (12) according to any one of claims 1 to 2, characterized in that the adhesive means (56) comprise a first adhesive face (58) bonded to the lower surface (34), and a second adhesive face (60) bonded to the upper surface (28); preferably, the fixing insert (36) comprises a reinforcement extending into the adhesive means (56).

4. Structure (12) according to any one of claims 1 to 3, characterized in that the partition (26) comprises an upper portion (66) forming the upper surface (28), and a front portion (32); the structure (12) further comprises a reinforcing piece (30) fixed to the front portion (32); the reinforcing piece (30) comprises fixing holes cooperating with the fixing insert (36), and / or the fixing insert (36) comprises fixing means (40) cooperating with the reinforcing piece (30).

5. Structure (12) according to claim 4, characterized in that the reinforcing piece (30) comprises an opening (38), the fastening insert (36) passing through said opening (38); preferably, the opening (38) is longitudinally at a distance from the adhesive means (56).

6. Structure (12) according to any one of claims 1 to 5, characterized in that the fixing support (20) comprises an upper horizontal face (68) intended to be fixed to a reel (18), and a lower horizontal flange (70) forming the lower surface (34); the adhesive means (56) being glued to said lower horizontal flange (70).

7. Structure (12) according to any one of claims 1 to 6, characterized in that the fixing insert (36) comprises a vertical arm (52) extending from the lower surface (34), the vertical arm (52) being vertically distanced from the adhesive means (56).

8. Motor vehicle (10) comprising a structure (12), characterized in that the structure (12) conforms to any one of claims 1 to 7 and in that the structure (12) comprises a vertical gap (72) between the lower surface (34) and the upper surface (28), said vertical gap (72) comprising a height between 5 mm and 15 mm.

9. Method of assembling a structure (12) of a motor vehicle (10), the assembly method comprising the following steps: • a) assembly (100) of an assembly comprising a rear wheel arch (24); a partition (26) delimiting the rear wheel arch (24), the partition (26) comprising an upper surface (28); a mounting bracket (20) for a rear seat belt retractor above the rear wheel arch (24), said mounting bracket (20) comprising a lower surface (34) opposite the upper surface (28); characterized in that the method further comprises the steps • b) insertion (102) of an expandable mounting insert (36) between the lower surface (34) and the upper surface (28), said expandable mounting insert (36) comprising adhesive means (56); said adhesive means (56) being configured to connect the partition (26) to the fixing support (20);• c) expansion (104) of the adhesive means (56) between the partition (26) and the fixing support (20) in order to connect them;

10. • d) bonding (106) of the adhesive means (56) to the lower surface (34) and / or the upper surface (28); preferably, step c) expansion (104) includes a substep of applying paint (108) to the structure (12). Assembly method according to claim 9, characterized in that step a) assembly (100) comprises a substep of making (110) a base (22) including the rear wheel arch (24) and the partition (26) delimiting the rear wheel arch (24); a substep of making (112) a superstructure comprising a side pillar, the fixing support (20) being connected to the side pillar; a substep of fixing (114) the superstructure to the base (22) by positioning the fixing support (20) above the rear wheel arch (24).

Images