Top cover front cross beam assembly, connecting structure of top cover front cross beam assembly and side wall assembly and vehicle

Abstract

The utility model relates to a top cover front cross beam assembly, a connecting structure of the top cover front cross beam assembly and a side wall assembly and a vehicle. The top cover front cross beam assembly comprises a top cover front cross beam outer plate and a top cover front cross beam inner plate which are fixedly connected together. A first protruding structure is arranged in the middle area of the top cover front cross beam outer plate, and first step parts are arranged at the two ends of the top cover front cross beam outer plate correspondingly. A second protruding structure is arranged in the middle area of the top cover front cross beam inner plate. Second step parts are arranged at the two ends of the top cover front cross beam inner plate respectively. The strength of the top cover front cross beam assembly and the strength of the connecting structure of the top cover front cross beam assembly and the side wall assembly can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bodies, in particular to a top cover front crossbeam assembly and a connection structure between the top cover front crossbeam assembly and a side panel assembly, and a vehicle. Background Art

[0002] In the prior art, the strength and stiffness of the front cross beam of the automobile roof and its connection with the side panel assembly have an important impact on the automobile's snow pressure, collision pressure, NVH and other performance. Therefore, in order to ensure the strength and stiffness of the front cross beam of the roof, it is generally adopted to add a reinforcement cavity or a reinforcement bracket to the front cross beam of the roof. The reinforcement bracket method will increase the number of body sheet metal parts because the reinforcement bracket needs to be screwed to the side panel and the front cross beam of the roof; while the method of adding a reinforcement cavity will sacrifice some head space.

[0003] For another example, patent document CN 217804929 U discloses a roof crossbeam connecting plate, a body component and a vehicle for a vehicle, including at least one elastic pre-fastener, which is arranged on the first surface of the roof crossbeam connecting plate and can be elastically snapped into a corresponding through hole opened on the roof crossbeam, so that the roof crossbeam is snapped into the roof crossbeam connecting plate. Although this structure has the advantages of easy installation and not easy to loosen, it still has the following disadvantages: First, this structure requires an additional bending process, which increases the difficulty of the process and increases the mold cost and punching cost. Secondly, the addition of a flanging structure to the roof crossbeam connecting plate will cause the material sheet in the bending area to be lengthened, thereby reducing the material utilization rate. Finally, there is no counterweight block set on the front crossbeam of the roof, and low-frequency road noise will be generated when the vehicle is driving under certain working conditions, which will bring a bad experience to the passengers.

[0004] Therefore, it is necessary to develop a new front cross beam of the roof and a structure and a vehicle connected with the side enclosure assembly. Summary of the invention

[0005] The utility model aims to provide a roof front cross beam assembly and a connection structure between the roof front cross beam assembly and a side panel assembly, and a vehicle, which can improve the strength of the roof front cross beam assembly and the connection structure between the roof front cross beam assembly and the side panel assembly.

[0006] In the first aspect, the utility model describes a roof front cross beam assembly, comprising a roof front cross beam outer plate and a roof front cross beam inner plate fixedly connected together; a first protruding structure is provided in the middle area of ​​the roof front cross beam outer plate, and first step portions are respectively provided on both end portions of the roof front cross beam outer plate; a second protruding structure is provided in the middle area of ​​the roof front cross beam inner plate, and second step portions are respectively provided on both end portions of the roof front cross beam inner plate.

[0007] Optionally, the inner plate of the front cross beam of the roof is a thermoformed plate. The thermoformed plate has high strength, which further improves the structural strength of the inner plate of the front cross beam of the roof.

[0008] Optionally, the two ends of the front cross beam outer plate of the roof are respectively provided with a first bonding surface, the cross section of the first bonding surface is in the shape of a Chinese character "J", and includes the top surface of the first step portion and welding surfaces located on both sides of the first step portion. The first bonding surface with a cross section in the shape of a Chinese character "J" has a higher structural strength.

[0009] Optionally, a second bonding surface is provided at each end of the inner plate of the front cross beam of the roof, and the cross section of the second bonding surface is in the shape of a Chinese character "J", including the top surface of the second step portion and welding surfaces located on both sides of the second step portion. The second bonding surface with a cross section in the shape of a Chinese character "J" has a higher structural strength.

[0010] Optionally, a counterweight is installed on the inner plate of the front cross beam of the roof, and the counterweight is located in a cavity between the outer plate of the front cross beam of the roof and the inner plate of the front cross beam of the roof. By adding a counterweight on the inner plate of the front cross beam of the roof, low-frequency road noise of the car is solved, and the comfort of the passengers is improved.

[0011] Optionally, an expansion glue is provided on the inner plate of the front cross beam of the roof at a position corresponding to the counterweight. By spraying the expansion glue on the inner plate of the front cross beam of the roof, abnormal noise caused by too small a gap or bolt attenuation between the counterweight and the inner plate of the front cross beam of the roof can be reduced.

[0012] Optionally, a ceiling lining mounting bracket is further included, one end of which is welded to the outer plate of the front cross beam of the roof and the inner plate of the front cross beam of the roof, thereby improving the structural strength of the ceiling lining mounting bracket.

[0013] In a second aspect, a connection structure of a roof front cross beam assembly and a side panel assembly described in the utility model comprises a side panel assembly, a roof front cross beam assembly and a roof front cross beam support plate at a side panel end, wherein the side panel assembly comprises a roof front cross beam support plate at a side panel end, an A-pillar upper inner plate, a side panel outer plate and a side panel outer plate upper reinforcement member fixedly connected together;

[0014] The top cover front cross beam assembly adopts the top cover front cross beam assembly described in the utility model;

[0015] The front cross beam support plate of the side enclosure end top cover has a first end and a second end; the first end of the front cross beam support plate of the side enclosure end top cover is provided with a third step portion that is compatible with the second step portion on the inner plate of the front cross beam of the top cover, and is fixedly connected to the inner plate of the front cross beam of the top cover; the middle part of the front cross beam support plate of the side enclosure end top cover is provided with a fourth step portion that is compatible with the first step portion on the outer plate of the front cross beam of the top cover, and is fixedly connected to the outer plate of the front cross beam of the top cover; the second end of the front cross beam support plate of the side enclosure end top cover is fixedly connected to the upper inner plate of the A-pillar.

[0016] Optionally, the front crossbeam support plate of the side panel end top cover is provided with pre-hanging bolts;

[0017] The outer plate of the front cross beam of the roof is provided with a process through hole at a position corresponding to the pre-hanging bolt. The provision of the pre-hanging bolt can solve the problems of pre-hanging assembly positioning of the side panel assembly and the front cross beam of the roof.

[0018] In a third aspect, a vehicle described in the utility model adopts the connection structure of the top cover front cross beam assembly and the side panel assembly as described in the utility model.

[0019] Beneficial effects of the utility model:

[0020] (1) The utility model provides a protruding structure in the middle area of ​​the top cover front cross beam outer plate and the top cover front cross beam inner plate, and the protruding structure can improve the overall strength of the top cover front cross beam outer plate and the top cover front cross beam inner plate. At the same time, the utility model provides step portions at the ends of the top cover front cross beam outer plate and the top cover front cross beam inner plate. After the top cover front cross beam assembly is connected to the side enclosure assembly through the top cover front cross beam support plate at the side enclosure end, two step portions can be formed at the connection between the top cover front cross beam assembly and the side enclosure assembly. The two step portions are used to strengthen the structure, reduce the stress deformation of the connection part between the top cover front cross beam assembly and the side enclosure assembly, and further ensure the strength of the connection between the top cover front cross beam assembly and the side enclosure assembly.

[0021] (2) The utility model solves the low-frequency road noise of the vehicle by adding a counterweight block to the inner plate of the front cross beam of the roof, thereby improving the comfort of the passengers.

[0022] (3) The utility model adds pre-hanging bolts to the front cross beam support plate of the top cover at the side panel end. The provision of the pre-hanging bolts can firstly effectively solve the pre-hanging assembly problem of the front cross beam assembly of the top cover and the side panel assembly. Secondly, the use of the pre-hanging bolts to replace the existing bending and flanging structure can effectively reduce the difficulty of parts and mold forming, thereby reducing costs from the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a front cross beam assembly of a roof provided from an exterior perspective according to an embodiment of the present application;

[0024] Figure 2 is a structural schematic diagram of a front cross beam assembly of a roof from an in-vehicle perspective according to a specific embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the connection structure between the counterweight block and the inner plate of the front cross beam of the top cover in a specific embodiment of the present application;

[0026] Figure 4 It is a structural schematic diagram of a roof front crossbeam assembly and a side panel assembly from a vehicle interior perspective of a specific embodiment of the present application;

[0027] Figure 5 It is a structural schematic diagram of a roof front crossbeam assembly and a side panel assembly from a vehicle exterior perspective of a specific embodiment of the present application;

[0028] Figure 6 It is a cross-sectional view of the overlap between the front crossbeam assembly of the roof and the side panel assembly of a specific embodiment of the present application;

[0029] Figure 7 is a cross-sectional view of a counterweight block of a specific embodiment of the present application;

[0030] Figure 8 It is a structural schematic diagram of a front crossbeam support plate of a side panel end top cover according to a specific embodiment of the present application;

[0031] Among them, 1-top cover front cross beam outer plate; 11-ceiling lining mounting hole; 12-process through hole; 13-first raised structure; 14-first fitting surface; 15-first step portion; 3-top cover front cross beam inner plate; 31-second step portion, 32-second fitting surface; 33-bolt through hole; 34-second weight reduction hole; 35-second raised structure; 4-counterweight block; 41-projection welding nut; 5-bolt; 6-side enclosure end top cover front cross beam support plate; 61-third step portion; 62-fourth step portion; 63-pre-hung bolt; 64-welding through hole; 65-third fitting surface; 66-fourth fitting surface; 7-A column upper inner plate; 8-side enclosure outer plate; 9-side enclosure outer plate upper reinforcement; 10-patch plate. DETAILED DESCRIPTION

[0032] The following will refer to the accompanying drawings and preferred embodiments to illustrate the implementation of the utility model. Those skilled in the art can understand other advantages and effects of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the utility model. It should be understood that the preferred embodiments are only for illustrating the utility model, not for limiting the scope of protection of the utility model.

[0033] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0034] like Figures 1 to 3 As shown, in an embodiment of the present application, a roof front cross beam assembly includes a roof front cross beam outer plate 1, a ceiling lining mounting bracket 2, a roof front cross beam inner plate 3 and a counterweight block 4.

[0035] like Figure 1 As shown, in one implementation of the embodiment of the present application, a first protruding structure 13 is provided on the outer plate 1 of the front cross beam of the roof.

[0036] Specifically, the first protruding structure 13 is disposed in the middle area of ​​the roof front cross beam outer plate 1 , and is used to structurally reinforce the roof front cross beam outer plate 1 , thereby improving the structural strength of the roof front cross beam outer plate 1 .

[0037] like Figure 1 As shown, in one implementation of the embodiment of the present application, first step portions 15 are respectively provided on both ends of the roof front cross beam outer plate 1; the ends of the roof front cross beam outer plate 1 are strengthened by the first step portions 15.

[0038] like Figure 1 As shown, in one implementation of the embodiment of the present application, first fitting surfaces 14 are respectively provided on both ends of the top cover front cross beam outer plate 1 for welding with the side panel end top cover front cross beam support plate 6.

[0039] Specifically, the cross section of the first bonding surface 14 is in the shape of a Chinese character "J", which includes the top surface of the first step portion 15 and welding surfaces located on both sides of the first step portion 15.

[0040] like Figure 1 As shown, in one implementation of the embodiment of the present application, a process hole 12 is provided on the outer plate 1 of the front cross beam of the roof.

[0041] like Figure 1 As shown, in one implementation of the embodiment of the present application, a weight-reducing hole may be provided at a local position on the outer plate 1 of the front cross beam of the roof, for example, a first weight-reducing hole is provided on the first step portion 15 to reduce the weight of the outer plate 1 of the front cross beam of the roof.

[0042] like Figure 1 As shown, in the embodiment of the present application, the outer plate 1 of the front cross beam of the roof is a plate-shaped component, and a ceiling lining mounting hole 11 is provided on the outer plate 1 of the front cross beam of the roof.

[0043] Specifically, the ceiling lining mounting hole 11 is a hole structure for the ceiling lining mushroom buckle to pass through, and the mushroom buckle refers to a device of the ceiling lining. There are two ceiling lining mounting holes 11, which are respectively arranged on both ends of the outer plate 1 of the front cross beam of the roof.

[0044] like Figure 2 As shown, in one implementation of the embodiment of the present application, a second protrusion structure 35 is provided in the middle area of ​​the inner plate 3 of the front cross beam of the roof, which is used to strengthen the structure of the inner plate 3 of the front cross beam of the roof, thereby improving the structural strength of the inner plate 3 of the front cross beam of the roof.

[0045] like Figure 2 As shown, in one implementation of the embodiment of the present application, second step portions 31 protruding toward the interior of the vehicle are respectively provided on both ends of the inner plate 3 of the front cross beam of the roof, and the inner plate 3 of the front cross beam of the roof is strengthened by the second step portions 31, which can further improve the structural strength of the inner plate 3 of the front cross beam of the roof.

[0046] like Figure 2 As shown, in one implementation of the embodiment of the present application, second fitting surfaces 32 are respectively provided on both ends of the inner plate 3 of the front cross beam of the roof, and the second fitting surfaces 32 are used for welding with the front cross beam support plate 6 of the side panel end roof.

[0047] Specifically, the cross section of the second bonding surface 32 is in the shape of a Chinese character “J”, and includes the top surface of the second step portion 31 and welding surfaces located on both sides of the second step portion 31 .

[0048] In one implementation of the embodiment of the present application, the inner plate 3 of the front cross beam of the roof is a thermoformed plate. The thermoformed plate has high strength, which further improves the structural strength of the inner plate 3 of the front cross beam of the roof.

[0049] like Figure 2 , Figure 3 and Figure 7 As shown, in one implementation of the embodiment of the present application, a counterweight 4 is installed on the inner plate 3 of the front cross beam of the roof, and the counterweight 4 is located in the cavity between the outer plate 1 of the front cross beam of the roof and the inner plate 3 of the front cross beam of the roof.

[0050] Specifically, a bolt through hole 33 is provided in the middle of the inner plate 3 of the front cross beam of the roof, and a projection welding nut 41 is provided on the counterweight 4. The counterweight 4 is fixed to the inner plate 3 of the front cross beam of the roof by bolts 5 through the bolt through hole 33 and the projection welding nut 41, so as to realize the installation of the counterweight 4. The use of the projection welding nut 41 can make the installation of the counterweight 4 more secure. The projection welding nut 41 can be a T-shaped projection welding nut or a welding square nut.

[0051] like Figure 2As shown, in one implementation of the embodiment of the present application, a second weight-reducing hole 34 can also be set at a local position on the inner plate 3 of the front cross beam of the roof, and the second weight-reducing hole 34 is set around the counterweight block area to reduce the weight of the inner plate 3 of the front cross beam of the roof.

[0052] Before assembling the counterweight 4, an expansion glue is provided on the inner plate 3 of the front cross beam of the top cover at a position corresponding to the counterweight 4. By spraying the expansion glue on the inner plate 3 of the front cross beam of the top cover, the abnormal noise caused by too small a gap or bolt attenuation between the counterweight 4 and the inner plate 3 of the front cross beam of the top cover can be reduced.

[0053] like Figures 1 to 3 As shown, in one implementation of the embodiment of the present application, the outer plate 1 of the front cross beam of the roof cover and the inner plate 3 of the front cross beam of the roof cover are welded together, and one end of the ceiling lining mounting bracket 2 is respectively connected to the outer plate 1 of the front cross beam of the roof cover and the inner plate 3 of the front cross beam of the roof cover (by electric welding), thereby improving the structural strength of the ceiling lining mounting bracket 2.

[0054] like Figures 4 to 6 As shown, in an embodiment of the present application, a connection structure of a roof front cross beam assembly and a side panel assembly includes a side panel assembly and a roof front cross beam assembly as described in the embodiment of the present application.

[0055] like Figure 6 As shown, in one implementation of the embodiment of the present application, the side panel assembly includes a side panel end top cover front cross beam support plate 6, an A-pillar upper inner plate 7, a side panel outer plate 8, a side panel outer plate upper reinforcement 9 and a patch plate 10.

[0056] like Figure 4 , Figure 5 and Figure 6 As shown, in one implementation of the embodiment of the present application, the side panel assembly is welded by the side panel end top cover front cross beam support plate 6, the A-pillar upper inner plate 7, the side panel outer plate 8 and the side panel outer plate upper reinforcement 9. The side panel outer plate upper reinforcement 9 is made of a thermoformed plate, and a patch plate 10 is arranged on the side panel outer plate upper reinforcement 9, and the patch plate 10 is also made of a thermoformed plate. The strength of the side panel assembly and the structural strength of the connection between the top cover front cross beam and the side panel assembly are further improved.

[0057] like Figure 6 As shown, in one implementation of the embodiment of the present application, the specific connection method of the various parts of the side panel assembly is as follows: the side panel outer panel upper reinforcement 9 is welded to the side panel outer panel 8 to form a cavity structure, and the side panel outer panel upper reinforcement 9 is located on the inner side of the side panel outer panel 8. The patch plate 10 is welded to the side panel outer panel upper reinforcement 9. The A-pillar upper inner panel 7 is welded to the side panel outer panel upper reinforcement 9 to form a cavity structure.

[0058] like Figure 4 and Figure 8As shown, in one implementation of the embodiment of the present application, a third step portion 61 adapted to the second step portion 31 is further provided on the front cross beam support plate 6 of the side panel end top cover, and the third step portion 61 protrudes toward the inner side of the vehicle.

[0059] like Figure 4 As shown, in one implementation of the embodiment of the present application, the side panel end top cover front cross beam support plate 6 is provided with a third bonding surface 65 at a position corresponding to the second bonding surface 32 of the top cover front cross beam inner plate 3, wherein the third bonding surface 65 includes the top surface of the third step portion 61 and welding surfaces located on both sides of the third step portion 61. The side panel end top cover front cross beam support plate 6 is welded to the second bonding surface 32 of the top cover front cross beam inner plate 3 through the third bonding surface 65 to form a first overlap portion.

[0060] like Figure 4 and Figure 8 As shown, in one implementation of the embodiment of the present application, a fourth bonding surface 66 is provided on the side end top cover front cross beam support plate 6 at a position corresponding to the first bonding surface 14 on the top cover front cross beam outer plate 1, and a second lap joint is formed by welding the fourth bonding surface 66 to the first bonding surface 14.

[0061] The connection between the top cover front cross beam assembly and the side enclosure assembly is structurally reinforced by the third step portion 61 and the fourth step portion 62 on the side enclosure end top cover front cross beam support plate 6, thereby reducing the stress deformation of the first overlap portion and the second overlap portion.

[0062] like Figure 4 As shown, in one implementation of the embodiment of the present application, a welding through hole 64 is provided on the front cross beam support plate 6 of the top cover at the side enclosure end, and the welding of the front cross beam assembly of the top cover and the side enclosure assembly is achieved by welding through the through hole 64 .

[0063] like Figure 5 and Figure 8 As shown, a pre-hanging bolt 63 is provided on the side panel end top cover front cross beam support plate 6, and the pre-installation positioning of the side panel assembly and the top cover front cross beam during the welding process is realized by the pre-hanging bolt 63. A process through hole 12 is provided on the top cover front cross beam outer plate 1 at a position corresponding to the pre-hanging bolt 63.

[0064] Based on the roof front cross beam of any of the above embodiments, an embodiment of the present application further proposes a vehicle, which includes a connection structure between the roof front cross beam assembly and the side panel assembly of the above embodiments.

[0065] In the description of this specification, the description with reference to the terms "embodiment", "any embodiment" or "implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or implementations in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or implementations described in this specification and the features of the different embodiments or implementations, unless they are contradictory.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

Claims

1. A roof front cross beam assembly, comprising a roof front cross beam outer plate (1) and a roof front cross beam inner plate (3) fixedly connected together; characterized in that: A first convex structure (13) is provided in the middle area of the outer panel (1) of the front cross member of the roof panel, and first step portions (15) are respectively provided at both ends of the outer panel (1) of the front cross member of the roof panel; a second convex structure (35) is provided in the middle area of the inner panel (3) of the front cross member of the roof panel, and second step portions (31) are respectively provided at both ends of the inner panel (3) of the front cross member of the roof panel.

2. The top cover front cross beam assembly according to claim 1, characterized in that: The inner panel (3) of the front cross member of the roof panel is a hot forming plate.

3. The top cover front cross beam assembly according to claim 1, characterized in that: First fitting surfaces (14) are respectively provided at both ends of the outer panel (1) of the front cross member of the roof panel. The cross section of the first fitting surface (14) is in a "ji" shape, which includes the top surface of the first step portion (15) and the welding surfaces on both sides of the first step portion (15).

4. The roof front cross beam assembly according to claim 1, characterized in that: Second fitting surfaces (32) are also respectively provided at both ends of the inner panel (3) of the front cross member of the roof panel. The cross section of the second fitting surface (32) is in a "ji" shape, which includes the top surface of the second step portion (31) and the welding surfaces on both sides of the second step portion (31).

5. The roof front cross beam assembly according to claim 1, characterized in that: A counterweight block (4) is installed on the inner panel (3) of the front cross member of the roof panel, and the counterweight block (4) is located in the cavity between the outer panel (1) of the front cross member of the roof panel and the inner panel (3) of the front cross member of the roof panel.

6. The roof front cross beam assembly according to claim 5, characterized in that: Expansion glue is provided at a position corresponding to the counterweight block (4) on the inner panel (3) of the front cross member of the roof panel.

7. The roof front cross beam assembly according to claim 3, characterized in that: It further includes a ceiling lining mounting bracket (2), and one end of the ceiling lining mounting bracket (2) is respectively welded to the outer panel (1) of the front cross member of the roof panel and the inner panel (3) of the front cross member of the roof panel.

8. A connection structure of a roof front cross beam assembly and a side panel assembly, comprising a side panel assembly, a roof front cross beam assembly and a side panel end roof front cross beam support plate (6), wherein: The side wall assembly includes a side wall end roof panel front cross member support plate (6), an upper inner panel (7) of the A-pillar, an outer panel (8) of the side wall, and an upper reinforcing member (9) of the outer panel of the side wall that are fixedly connected together; characterized in that: the front cross member assembly of the roof panel adopts the front cross member assembly of the roof panel as described in any one of claims 1 to 7; The side wall end roof panel front cross member support plate (6) has a first end and a second end; a third step portion (61) adapted to the second step portion (31) on the inner panel (3) of the front cross member of the roof panel is provided at the first end portion of the side wall end roof panel front cross member support plate (6), and is fixedly connected to the inner panel (3) of the front cross member of the roof panel; a fourth step portion (62) adapted to the first step portion (15) on the outer panel (1) of the front cross member of the roof panel is provided in the middle of the side wall end roof panel front cross member support plate (6), and is fixedly connected to the outer panel (1) of the front cross member of the roof panel; the second end portion of the side wall end roof panel front cross member support plate (6) is fixedly connected to the upper inner panel (7) of the A-pillar.

9. The connection structure of the top cover front cross beam assembly and the side panel assembly according to claim 8, characterized in that: The side wall end roof panel front cross member support plate (6) is provided with a pre-hanging bolt (63); A process through hole (12) is provided at a position corresponding to the pre-hanging bolt (63) on the outer panel (1) of the front cross member of the roof panel.

10. A vehicle, characterized in that: Adopt the connection structure of the front cross member assembly of the roof panel and the side wall assembly as described in claim 8 or 9.

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