CN110857123A

CN110857123A - Vehicle body structure for vehicle

Info

Publication number: CN110857123A
Application number: CN201910796118.2A
Authority: CN
Inventors: D.普伊斯纳
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2018-08-24
Filing date: 2019-08-23
Publication date: 2020-03-03
Also published as: DE102018214371A1

Abstract

The invention relates to a body structure for a vehicle with a support structure for assembling a roof assembly having a roof rack, wherein the support structure has a roof rail facing upwards, wherein each roof rail has a shell-like outer panel part of the vehicle exterior, a shell-like inner panel part of the vehicle interior and a skin panel part covering the outer panel part, wherein the outer panel part, the inner panel part and the skin panel part are joined together with their longitudinal flanges of the vehicle interior in a horizontal plane, forming a flange connection. According to the invention, the flange connection forms an adhesive flange extending over the flange width. The flange width of the adhesive flange is designed such that the adhesive flange can be used as a uniform mounting base for different roof assemblies.

Description

Vehicle body structure for vehicle

Technical Field

The invention relates to a body structure for a two-track vehicle according to the preamble of claim 1.

Background

The body structure of a two-track vehicle has a load-bearing structure to which a roof assembly (Dachbaugruppe) can be fitted. The roof assembly may be prepared as a separate pre-assembled unit. Depending on the vehicle variant to be produced, the roof assembly can be a full roof sheet part for forming a full roof vehicle variant, which covers the roof of the vehicle body in a completely closed-surface manner, a sliding roof assembly (Schiebedach-Baugruppe, sometimes also referred to as a convertible roof assembly) for forming a sliding roof vehicle variant, or a panoramic roof assembly (Panoramadach-Baugruppe) for forming a panoramic roof vehicle variant.

In a vehicle body structure of this type, a roof assembly to be mounted on a vehicle body-side carrier structure has a roof rack. The load-bearing structure on the vehicle body side is formed by a lateral roof rail extending on both sides in the transverse direction of the vehicle. Each roof rail has a shell-shaped vehicle exterior panel outer, a shell-shaped vehicle interior panel inner, and a skin panel member covering the panel outer. The sheet metal outer part, the sheet metal inner part and the sheet metal jacket part are joined together with their longitudinal flanges of the vehicle interior in a horizontal plane with a flange connection being formed.

Disclosure of Invention

The object of the present invention is to provide a body structure for a vehicle, in which simple assembly of a roof assembly is made possible and in which, in particular, a body-side support structure can be used uniformly for the assembly of different roof assemblies.

This object is achieved by the features of claim 1. Preferred developments of the invention are disclosed in the dependent claims.

According to the characterizing part of claim 1, the flanged connection of the vehicle interior formed by the longitudinal flanges of the sheet metal inner part, the sheet metal outer part and the sheet metal outer part is realized as an adhesive flange extending over the flange width. The core idea of the invention is that the flange width of the adhesive flange is designed such that the adhesive flange can be used as a uniform mounting base for different roof assemblies. These roof assemblies are full roof sheet parts for forming full roof vehicle variants, sliding roof assemblies for forming sliding roof vehicle variants or panoramic roof assemblies for forming panoramic roof vehicle variants, which cover the roof of the vehicle body in a fully closed-surface manner.

The roof assembly to be assembled can be brought into adhesive connection with the adhesive flange and can be joined to the joining sides of the skin panel parts, in particular by laser welding. The joining side of the shell sheet metal part can be a component of a common mounting base for the roof assembly, which is formed by the joining side of the shell sheet metal part and the adhesive flange.

In one technical implementation, the roof assembly may have a longitudinal edge tab. The longitudinal edge tabs serve as coupling profiles for joining at the joining side edges of the shell sheet parts. The longitudinal edge webs can be transferred at the longitudinal edges into the roof skin of the roof skin panel part towards the vehicle interior. The roof skin is arranged with a free mounting gap above the adhesive flange. The roof rack is in a screwed connection with the rack support positioned in the assembly space when inserted into the roof housing. In the case of this screw connection, the roof rack bolts are guided through the screw holes of the roof shell and the rack bracket and screwed with nuts. The nut clamps the roof rack bracket to the roof rack in the state of being placed in the roof housing. In order to enable a problem-free assembly of the roof rack without deformations in the roof skin, the rack carrier is supported with its carrier feet in an adhesive connection on the adhesive flange.

The roof rack support is in one embodiment a U-shaped sheet metal carrier with a carrier head, which is in contact with the roof shell and in which threaded bores are formed, and with carrier legs, which project therefrom and form support feet.

In terms of assembly technology, it is preferred that the adhesive flange has a tool access opening which is closed, in particular, on the circumferential side. Through the tool access opening, the roof rack bolt can be extended towards the vehicle bottom. Tool access is available through the access opening during assembly to facilitate tightening of the nut.

It is particularly preferred that the mounting base formed by the housing sheet metal parts and the adhesive flange can be used uniformly for different roof parts, namely a full roof sheet metal part for forming a full roof vehicle variant, a sliding roof assembly for forming a sliding roof vehicle variant or a panoramic roof assembly for forming a panoramic roof vehicle variant, which covers the roof of the vehicle body in a completely closed-surface manner.

In view of the rigidity requirements of the vehicle body, it is preferred that the sunroof frame is implemented in at least two parts, more precisely formed by an upper, exterior-side housing frame and a lower, invisible (sichtgesch ü tzten) reinforcement frame.

In one embodiment variant, the reinforcing frame, which is not visible, can have reinforcing frame longitudinal struts. In the case of an assembled roof assembly, the reinforcing frame longitudinal strut can be supported with its strut longitudinal edge on the vehicle exterior in an adhesive connection on the adhesive flange. In contrast, the exterior-side shell frame can have a shell longitudinal strut with an exterior-side shell sheet longitudinal strip which merges towards the exterior of the vehicle at a longitudinal edge into a longitudinal edge web, which serves as a coupling contour for joining to the exterior shell sheet part on the exterior of the vehicle. The longitudinal strips of casing sheet material are spaced from the adhesive flanges via the above-mentioned fitting spaces. In the case of this particular embodiment, the reinforcing frame longitudinal struts can form, together with the adhesive flanges, the skin sheet metal parts and the skin longitudinal struts, a hollow profile which is closed in cross section, as a result of which the body rigidity in the region of the roof can be increased considerably in a simple manner.

As mentioned above, in the case of panoramic sunroof vehicle variants and in the case of sliding sunroof vehicle variants, the sunroof frame is implemented in two parts, to be precise with an upper housing frame on the exterior side and an invisible reinforcement frame arranged thereunder. The housing frame can have a front housing transverse strut which is closed toward the front of the vehicle by a front windshield flange on which the upper edge of the front windshield is supported. In order to increase the rigidity of the vehicle body, a front U-shaped roof cross member base part can be provided, which in cross section has a lower profile base with front and rear raised profile legs, which respectively merge into a front base part flange and into a rear base part flange. Here, the front base member flange is joined to the front windshield flange of the front housing transverse strut.

In the following, a structural measure is described by means of which the roof cross member base part can be used as an identical part both in a panoramic sunroof vehicle variant and in a sliding sunroof vehicle variant:

in the case of a panoramic sunroof vehicle variant, the front edge of the panoramic sunroof glass and the upper front windshield edge merge into one another flush with one another next to the ground in the case of a connecting seam, that is to say without a lateral strip of outer skin arranged between them on the viewing side. In this case, the panoramic sunroof glass completely covers the housing transverse struts of the housing frame. In the case of this vehicle variant, the rear base component flange of the roof cross rail base component can be joined to the underside of the lateral shell strut with the interposition of the front reinforcing frame lateral strut.

In contrast to the panoramic sunroof vehicle variant described above, in the sliding sunroof vehicle variant the front housing transverse strut of the housing frame has a housing transverse web strip on the viewing side. The lateral strip of outer skin is arranged in the longitudinal direction of the vehicle between the upper front edge of the windscreen and the front edge of the sliding roof window. In contrast to the panoramic sunroof vehicle variant, the front windshield flange merges at the vertical sheet side into the lateral sheet strip of the housing on the viewing side. Which is offset in height by a step height from the front windshield flange. To compensate for this step height, the rear base part flange in the sliding roof vehicle variant is joined to the front housing transverse strut with the front reinforcing frame transverse strut inserted. By means of the front stiffening frame transverse strut of the sliding roof vehicle variant, the step height between the rear base part flange and the housing transverse strut is eliminated. In this way, the front roof cross member base part can be used as an identical piece both in the case of a sliding roof vehicle variant and in the case of a panoramic sunroof vehicle variant.

Drawings

An embodiment is described below with the aid of the figures.

Wherein:

fig. 1 shows a full roof vehicle variant in a view from above;

FIG. 2 shows a partial cross-sectional illustration along section plane B-B from FIG. 1;

fig. 3 and 4 show views of a sliding roof vehicle variant corresponding to fig. 1 and 2, respectively;

figure 5 shows an exploded illustration of the sunroof frame from the sliding roof vehicle variant of figures 3 and 4;

fig. 6 to 8 show views of a panoramic sunroof vehicle variant corresponding to fig. 3 to 5, respectively;

FIG. 9 shows a partial cross-sectional illustration along the cross-sectional plane A-A from FIG. 6; and is

Fig. 10 shows a partial sectional illustration along the sectional plane a-a from fig. 3.

List of reference numerals

1 full roof panel part

3 vehicle roof outer cover

5 lateral longitudinal edge

7 longitudinal edge tab

9 front windshield flange

11 edge of front windshield

13 front windshield

15 load bearing structure

17 roof rail

19 sheet material outer part

21 sheet material inner part

23 shell sheet material parts

25 longitudinal flange

27 flanged connection

29 joining side edges

30 mounting base

31 baggage rack

33 luggage carrier support

35 assembly gap

37 luggage rack bolt

41 screw hole

43 bracket top

45 bracket supporting leg

47 nut

49 tool access opening

51 skylight frame

53 sliding skylight

55 upper casing frame

57 lower reinforcing frame

59 longitudinal brace rod of reinforced frame

61 transverse stay bar of reinforced frame

63 longitudinal strut of the housing

64 shell transverse plate strip

65 casing transverse stay bar

67 brace bar longitudinal edge

68 closed hollow profile

69 front edge of panoramic roof glass

71 panoramic sunroof glass

73 connecting seam

74 bonding bead (Kleberaupen)

75 base member

77 bottom of the profile

79 front base member flange

81 rear base member flange

83 lateral plate strip of outer shell

85 vertical plate side

I full roof vehicle variant scheme

II sliding type skylight vehicle variant scheme

III panoramic sunroof vehicle variant

VD whole roof assembly

SD sliding skylight assembly

PGD panoramic sunroof assembly

S-shaped screw connection

K-bond connection

L-shaped welded joint

△ h step height

b flange width.

Detailed Description

Fig. 1 shows a motor vehicle according to a full roof vehicle variant I, in which the roof of the vehicle body is covered by a full roof panel section 1 in a completely closed manner. The full roof panel part 1 in fig. 2 has a large-area panel skin 3, which merges in the transverse direction y of the vehicle at the longitudinal edge 5 laterally outward of the vehicle into a longitudinal edge web 7 bent therefrom. Furthermore, the full roof panel part 1 has a front screen flange 9 (shown only in fig. 9 and 10) on the front side, on which an upper edge 11 of a front screen 13 is supported.

As can be seen from fig. 2, the full roof panel component 1 is supported on a carrier structure 15 on the vehicle body side with a lateral roof rail 17. The roof rail 17 is formed from a shell-like outer sheet metal part 19 of the vehicle exterior and a shell-like inner sheet metal part 21 of the vehicle interior, which in cross section delimit a closed hollow contour. The sheet metal outer part 19 is overlapped in fig. 2 with an additional jacket sheet metal part 23. In the assembled position shown in fig. 2, the longitudinal flanges 25 of the vehicle interior of the sheet metal outer part 19, the sheet metal inner part 21 and the skin sheet metal part 23 are joined together in the horizontal plane xy at the spot-welded position with the flange connection 27 being formed.

The flange connection 27 of the vehicle interior is realized in fig. 2 as an adhesive flange extending over a flange width b. The adhesive flange 27 forms in fig. 2 together with the joining side 29 of the skin sheet part 23 a mounting base 30 for the full roof assembly VD, which is constructed from the full roof sheet part 1 and the roof rack 31 in the lateral direction. In fig. 2, one of the roof racks 31 is in a screwed connection S with a U-shaped sheet metal bracket 33 serving as a rack support in the case of insertion into the roof housing 3. The sheet metal bracket 33 is arranged in fig. 2 in an assembly gap 35, which extends in the vehicle vertical direction z between the roof skin 3 and the adhesive flange 27. In the case of this screw connection S, the roof rack bolt 37 passes through the screw holes 41 of the roof housing 3 and the panel bracket 33. The threaded holes 41 of the sheet metal bracket 33 are formed in fig. 2 in a bracket top 43 which is in contact with the roof skin 3. The bracket top 43 has bracket legs 45 projecting downward therefrom, which are in adhesive connection K with the adhesive flange 27. The roof rack bolt 37 is screwed in fig. 2 to a nut 47, which clamps the sheet metal bracket 33 to the roof rack 31 when the roof housing 3 is inserted.

The adhesive flange 27 has a tool access opening 49 in fig. 2, through which tool access opening 49 both the luggage rack bolt 37 and the nut 47 protrude toward the vehicle bottom. Simplified tool access to the nut 47 is ensured by means of the tool access opening 49.

The mounting base 30 shown in fig. 2, constructed of the adhesive flange 27 and joining side 29, can be used not only to assemble a full roof assembly VD, but rather to assemble a sliding roof assembly SD (fig. 3, 4 and 5) or a panoramic roof assembly PGD (fig. 6, 7 and 8), as described below:

fig. 3 therefore relates to a sliding roof vehicle variant II in which the sliding roof assembly SD is mounted on a body-side carrier structure 15. The sliding roof assembly SD has a skylight frame 51 (fig. 5) that frames a sliding roof glass 53 (fig. 3 or 4). The skylight frame 51 is formed in two parts in fig. 5, namely an upper, viewing-side housing frame 55 and a lower, non-visible reinforcing frame 57. The stiffening frame 57 is constructed in fig. 5 from two stiffening frame longitudinal struts 59, which are connected to one another via front and rear stiffening frame transverse struts 61. In the same way, the upper, viewing-side housing frame 55 is likewise of frame-like closed design, to be precise with lateral housing longitudinal struts 63, which are connected to one another via front and rear housing transverse struts 65. In fig. 4, the reinforcing frame longitudinal strut 59 is supported with its strut longitudinal edge 67 (S-shaped arc (S-Schwung)) on the adhesive flange 27 in the adhesive connection K on the vehicle exterior. The reinforcing-frame longitudinal brace 59 forms, in fig. 3, together with the adhesive flange 27, the skin sheet metal part 23 and the skin longitudinal brace 63, a hollow contour 68 which is closed in the cross section yz, as a result of which the body rigidity can be increased easily in terms of construction.

Fig. 6 to 9 show a panoramic sunroof vehicle variant III in which the upper front windshield edge 11 (fig. 9) and the front edge 69 of the panoramic sunroof 71 merge into one another in a face-to-face and flush manner with respect to one another, with the joining seam 73 being interposed, that is to say without the outer skin transverse web 64 (see fig. 10) arranged between them on the viewing side. In fig. 9, the panoramic sunroof glass 71 covers the housing lateral stay 65 of the housing frame 55. The housing frame 55 together with the reinforcing frame 57 is in fig. 8 an integral part of the roof frame 51 which is embodied in two parts, as is the case in the sliding roof assembly SD shown in fig. 5.

In fig. 7, the panoramic sunroof assembly PGD likewise has longitudinal edge webs 7, sheet metal brackets 33 and a strut longitudinal edge 67 (S-Schlag) of the vehicle exterior of the reinforcing frame 57, which is fixed in a welded and adhesively bonded connection L, K at the mounting base 30 of the carrying structure 15.

In fig. 9 a panoramic sunroof vehicle variant III is shown in a partial sectional illustration along the sectional plane a-a from fig. 6. The housing frame 55 therefore has a front housing transverse strut 65 which is closed at the front of the vehicle by a front windshield flange 9, on which an upper front windshield edge 11 is supported. The front housing transverse strut 65 has associated with it a front U-shaped roof cross member base part 75 which has in cross section a lower profile base 77 with front and rear raised profile sides. These profile sides transition into the forward base member flange 79 and into the rearward base member flange 81. The forward base component flange 79 is joined directly to the front windshield flange 9 of the forward housing cross brace 65 in fig. 9. The panoramic sunroof glass 71 completely covers the housing lateral stays 65 of the upper housing frame 55. The rear base member flange 81 of the roof cross rail base member 75 is joined directly to the bottom surface of the housing cross stay 65 in fig. 9.

In fig. 10, a sliding roof vehicle variant II with a sliding roof assembly SD is shown in a view according to fig. 9. In the sliding roof assembly SD, the housing transverse stay 65 at the front of the housing frame 55 has a housing transverse plate bar 64 on the viewing side. The housing transverse strip of sheet metal is arranged in the vehicle longitudinal direction x between the upper front windshield edge 11 and the front edge 69 of the sliding roof window 53. In fig. 10, the front windshield flange 9 merges at the vertical sheet-metal side 85 into the lateral casing sheet-metal strip 64 on the viewing side. The lateral sheet metal strip of the housing is offset in height in fig. 9 by a step height Δ h from the front windshield flange 9.

In order to compensate for the step height Δ h, the rear base part flange 81 in fig. 10 is no longer joined directly at the bottom face of the housing transverse strut 65 (see fig. 9), but rather in the case of the reinforcing frame transverse strut 61 which is inserted in the front. By means of the front reinforcing frame transverse strut 61, the step height Δ h between the rear base part flange 81 and the outer shell transverse strut 65 is eliminated, so that the front roof cross rail base part 75 can be used as an identical piece both in the case of the sliding roof vehicle variant II and in the case of the panoramic roof vehicle variant III.

Claims

1. A body structure for a vehicle with a carrier structure (15) for mounting a roof assembly (VD, SD, PGD) having a roof rack (31), wherein the carrier structure (15) has a roof rail (17) which is oriented laterally upwards, wherein each roof rail (17) has a shell-like vehicle-exterior sheet metal part (19), a shell-like vehicle-interior sheet metal part (21) and a skin sheet metal part (23) covering the sheet metal part (19), wherein the sheet metal part (19), the sheet metal part (21) and the skin sheet metal part (19) are joined together with their vehicle-interior longitudinal flanges (25) in a horizontal plane (xy) with the formation of a flange connection (27), characterized in that the flange connection (27) forms a bonding flange which extends over a flange width (b), and the flange width (b) of the adhesive flange (27) is designed such that the adhesive flange (27) can be used as a uniform mounting base (30) for different roof assemblies (VD, SD, PGD), namely a full roof sheet metal part (1) for forming a full roof vehicle variant (I) which covers the roof of the vehicle body in a completely closed-surface manner, a sliding roof assembly (SD) for forming a sliding roof vehicle variant (II) or a panoramic roof assembly (PGD) for forming a panoramic roof vehicle variant (III).

2. The vehicle body structure according to claim 1, characterized in that the roof assembly (SD, VD, PGD) is joined both in the adhesive connection (K) with the adhesive flange (27) and at the joining side (29) of the shell sheet metal part (23), in particular in the laser welded connection (L), and in particular the joining side (29) of the shell sheet metal part (23) is an integral part of a common mounting base (30).

3. The vehicle body structure according to claim 1 or 2, characterized in that the roof module (VD, SD, PGD) has longitudinal edge webs (7) which can be joined at joining sides (29) of the shell sheet metal part (23), and the longitudinal edge webs (7) merge at longitudinal edges (5) into a roof shell (3) which extends with a free assembly space (Δ z) above the adhesive flange (27), and in particular the roof rack (31) is in a screw connection (S) with a rack bracket (33) arranged in the assembly space (35) in the case of insertion of the roof shell (3), and in the case of the screw connection (S) a screw (37) of the roof rack (31) passes through screw holes (39) of the roof shell (3) and the rack bracket (33), 41) and is screwed to a nut (47) which, when the roof housing (3) is inserted, clamps the luggage rack carrier (33) to the roof luggage rack (31), and the luggage rack carrier (33) is in adhesive connection (K) with its carrier foot (45) to the adhesive flange (27).

4. The body structure of claim 3, wherein the adhesive flange (27) has a tool access opening (49) which is closed, in particular on the peripheral side, through which the screw (37) projects toward the vehicle bottom and/or by which the nut (47) can be clamped.

5. The vehicle body structure according to claim 3 or 4, characterized in that the luggage rack support (33) is a U-shaped sheet metal bracket with a bracket top (43) in abutment with the roof shell sheet metal part (3) in which the screw hole (41) is configured and with bracket legs projecting therefrom which form the support feet (45).

6. The vehicle body structure according to one of claims 2 to 5, characterized in that the roof assembly (SD, PGD) has a sunroof frame (51) which surrounds a roof hatch in a frame-like manner, and the sunroof frame (51) is constructed at least in two parts from an upper, exterior-side shell frame (55) and a lower, invisible reinforcement frame (57), and the reinforcement frame (57) has a reinforcement frame longitudinal strut (59) which is supported with its vehicle-exterior strut longitudinal edge (67) in an adhesive connection (K) on the adhesive flange (27).

7. The body structure according to claim 6, characterized in that the shell frame (55) has a shell longitudinal strut (63) with a shell sheet longitudinal strip (83) on the exterior side, which transitions into the longitudinal edge web (7) at the longitudinal edge (5) towards the exterior of the vehicle and which is spaced apart from the adhesive flange (27) via the assembly space (35), and in that the reinforcing frame longitudinal strut (59) forms a hollow contour (68) which is closed in the cross section (yz) together with the adhesive flange (27), the shell sheet part (23) and the shell longitudinal strut (63).

8. The vehicle body structure according to claim 7, characterized in that the shell frame (55) has a front shell transverse strut (65) which is closed towards the front of the vehicle by a front windscreen flange (9) on which an upper windscreen edge (11) is supported, and a front U-shaped roof cross member base part (75) is provided which has, in cross section, a lower profiled bottom (77) with front and rear raised profiled side edges which transition into a front base part flange (79) and into a rear base part flange (81), whereby the front base part flange (79) is joined to the front windscreen flange (9) of the front shell transverse strut (65).

9. The vehicle body structure according to claim 8, characterized in that in the panoramic sunroof vehicle variant (III) the upper front windshield edge (11) and the front edge (69) of the panoramic sunroof glass (71) are situated next to each other opposite and transition flush to each other in the region of the connecting seam (73), that is to say without a housing transverse web (64) arranged between them on the exterior side, and the panoramic sunroof glass (71) covers the housing transverse strut (65), and the rear base part flange (81) of the roof cross member base part (75) is joined to the underside of the housing transverse strut (65) in the region of the front reinforcing frame transverse strut (61).

10. The vehicle body structure according to claim 8, characterized in that in the sliding roof vehicle variant (II) the front housing transverse strut (65) of the housing frame (55) has a housing transverse web strip (64) on the appearance side which is arranged in the vehicle longitudinal direction (x) between the upper front windshield edge (11) and the front edge (69) of the roof hatch (53), and in that the front windshield flange (9) transitions at the vertical web side (79) into the housing transverse web strip (83) on the appearance side, which is height-offset upwards by the front windshield flange (9) by a step height (△ h), and in order to compensate for the step height (△ h) the rear base component flange (81) is joined to the bottom face of the housing transverse strut (61) with the interposition of the reinforcing frame transverse strut (61) on the front of the sliding roof vehicle variant (II), which eliminates the situation of the base component flange (81) between the housing transverse strut (65) and the base component (63h) in the case of the sliding roof vehicle variant (II) being usable as a vehicle roof cross-top cross-view variant (75).