CN111278671A - Body structure of motor vehicle - Google Patents
Body structure of motor vehicle Download PDFInfo
- Publication number
- CN111278671A CN111278671A CN201780089859.6A CN201780089859A CN111278671A CN 111278671 A CN111278671 A CN 111278671A CN 201780089859 A CN201780089859 A CN 201780089859A CN 111278671 A CN111278671 A CN 111278671A
- Authority
- CN
- China
- Prior art keywords
- roof panel
- body structure
- vehicle body
- roof
- reinforcing frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 16
- 210000002105 tongue Anatomy 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/06—Fixed roofs
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a body structure of a motor vehicle, comprising: -a roof panel (l) comprising an inner edge (1.2) defining an opening (4) for receiving a sunroof; a reinforcing frame (2) for supporting a roof window, having an inner edge (2.2) defining an opening (4) substantially matching the opening of the roof panel (1); the outer edge (2.l) of the stiffening frame (2) is provided with a U-shaped groove (2.3) in the fixing area (3), which U-shaped groove has two side portions (2.31, 2.33) and a central portion (2.32), the stiffening frame (2) being welded to the roof panel (1) in the central portion (2.32) of the U-shaped groove (2.3). The invention also relates to a vehicle having such a body structure and to a method for producing such a body structure.
Description
Technical Field
The present invention relates to a body structure of a motor vehicle. The invention further relates to a vehicle having such a body structure and to a method of manufacturing such a vehicle.
Background
Document JP 5040525B 2 discloses a body structure of a motor vehicle. The vehicle is equipped with a sunroof. In order to limit the deformation of the vehicle body in the event of an accident, i.e. when the vehicle rolls over, the vehicle is equipped with longitudinal reinforcements (34). The roof rail (40) is attached to a tongue (50) extending from the longitudinal stiffener. The tongues are less rigid and they can absorb impact energy by deforming them, thus maintaining the shape of the vehicle interior and the health of the vehicle occupants.
Document FR 3013281 a1 discloses a body structure of a motor vehicle. A roof panel (22) is provided with a sunroof (30). The reinforcement frame (24) is intended to reinforce the rigidity of the roof panel. As shown in fig. 14 of the document, the reinforcement frame has an opening (40) at a mounting point (21) of the roof rail. In this region, the reinforcing frame (24) does not contact the roof panel (22). Therefore, in the step of assembling the roof rail to the roof panel, the risk of deformation of the roof panel is high.
Disclosure of Invention
The present invention aims to propose a body structure of a motor vehicle in which the step of assembling the roof rail to the roof does not produce any deformation of the roof.
The invention achieves this object by proposing a body structure of a motor vehicle, comprising: a roof panel including an outer edge bounding an outer dimension of the roof panel and an inner edge defining an opening for receiving a sunroof; a reinforcement frame for supporting a sunroof, the reinforcement frame having an outer edge defining an outer dimension of the reinforcement frame and an inner edge defining an opening substantially matching the opening of the roof panel; at least one fixing region at which the roof rail can be fixed to the roof panel, an outer edge of the reinforcement frame being provided with a U-shaped groove at the fixing region, the reinforcement frame being welded to the roof panel at a central portion of the U-shaped groove.
According to a preferred embodiment, the roof panel and the reinforcing frame are welded by cold metal transition technology (CMT).
According to a preferred embodiment, the reinforcing frame is welded to the roof panel at least on some portions of the respective inner edges of the reinforcing frame and the roof panel.
According to a preferred embodiment, the roof panel (1) comprises an opening (1.3) for receiving an accessory of the roof rail, wherein the size of the opening (1.3) substantially matches the size of the U-shaped recess (2.3) of the reinforcement frame (2).
According to a preferred embodiment, the vehicle body structure includes a vehicle body side and a roof rail, and the roof rail is fixed to the roof panel by a bolt that passes through an opening of the roof panel, through the U-shaped groove of the reinforcement frame, and through the groove of the vehicle body side.
According to a preferred embodiment, the vehicle body structure includes a vehicle body side, in which the outer edge of the reinforcement frame is not in contact with the roof panel outside the fixing region, and the outer edge is dispersedly or continuously bonded to the vehicle body side.
The invention also relates to a motor vehicle having a sunroof and a body structure according to the invention.
The invention also relates to a method of manufacturing a motor vehicle comprising a body structure according to the invention, in which method the reinforcing frame is assembled to the roof panel on a welding line of a production line and the roof rail is assembled to the roof panel on an assembly line, i.e. downstream in the production line.
Drawings
Other features or advantages of the invention appear with the aid of the accompanying drawings, which show:
FIG. 1: a bottom view of the vehicle body structure of the invention;
FIG. 2: a cross-sectional view of the vehicle body structure of the invention.
Detailed Description
Fig. 1 shows a body structure according to the invention, seen from the bottom (in the direction of the body structure when mounted in a motor vehicle). The roof panel 1 has an outer edge 1.1 of a substantially rectangular shape. The roof panel 1 has an opening 4 for receiving a sunroof defined by an inner edge 1.2 of the roof panel 1. The roof panel may be made of metal and stamped and cut to the desired dimensions. On the left side of fig. 1, the roof panel has an arcuate shape intended to match the design of the windshield of the motor vehicle. The roof panel also has cutouts to allow attachment to the sides of the vehicle body.
The vehicle body structure of the invention is also provided with a reinforcing frame 2 for reinforcing the structure. The frame 2 has a substantially rectangular outer edge 2.1 and an inner edge 2.2 defining an opening 4, the opening 4 being substantially similar to an opening of a roof panel. Similar to the roof panel 1, the frame may be made of metal and stamped and cut to the desired dimensions to meet mechanical requirements. According to a preferred embodiment, the inner edge 2.2 of the reinforcement frame 2 is welded to the inner edge 1.2 of the roof panel 1.
In the example shown, the body structure has four fixing regions 3. The roof rail may be fixed to the structure in these areas 3. As can be seen from the enlarged view of the fixing area, the frame is provided with a U-shaped recess 2.3. The U-shaped groove has two side portions 2.31 and 2.33 and a central portion 2.32. A bolt (6 in fig. 2D) fixing the roof rail 5 is received in an opening 1.3 of the roof panel 1. The openings may be centrally located in the recess 2.3 of the frame 2 and their respective dimensions substantially match each other.
According to the invention, the roof panel 1 and the reinforcing frame 2 are welded together at the central portion 2.32. This feature ensures that the roof panel 1 is sufficiently rigid to not deform when attaching the roof rail 5 to the roof panel 1.
Fig. 2 shows a plurality of cross sections of the body structure of the invention, including in the fixing region 3 and outside the fixing region. The left side of each cross section is the outer edge and the right side of each cross section is the inner edge or opening 4.
Fig. 2A shows the roof panel 1 and the reinforcing frame 2 in the fixing region 3. The cross-section is defined as a in fig. 1: section A. From left to right in this example, the outer edge 1.1 of the roof panel, which is curved on itself, the opening 1.3, the weld W between the frame and the roof panel at the central portion 2.32 of the U-shaped groove 2.3, and the weld W at the inner edges of the roof panel and the frame can be seen.
Fig. 2B shows a graph according to a defined in fig. 1: a and a cross section corresponding to fig. 2A, which has a part of the side of the Body In White (BIW) or the body side 7. The side of the body has an aperture 7.3, which aperture 7.3 is aligned with the opening 1.3 of the roof panel and the U-shaped recess 2.3 of the frame. The holes 7.3 are intended to receive bolts 6 for fixing the roof rail. The roof panel may be, but need not be, welded to the vehicle body side at the fixing region.
Fig. 2C shows the following along the line B defined in fig. 1: b cross section. This part is outside the fixing area 3. The outer edge 1.1 of the roof panel can here also be welded to the body side 7, preferably by laser welding (marked W in the figure) to the body side 7. The inner edge of the roof panel and the frame may also be welded together. However, the outer edge of the reinforcing frame does not contact the roof panel. The shape of the reinforcing frame 2 is such that a gap exists between the roof panel and the outer edge of the frame. The frame may be suspended, or may be glued or welded to the side of the vehicle body. Point G in fig. 2C indicates the glue between the reinforcement frame 2 and the vehicle body side 7. When the roof rail 5 is mounted on the roof panel, the region outside the fastening region is not subjected to forces, so that a reinforcing frame, which is in contact with the roof panel 1 here, does not have to be designed.
Fig. 2D shows cross section a: fixed area 3 in a. This figure corresponds to figure 2B after the roof rail 5 has been installed. Here, a roof rail 5 with a bolt 6 can be seen, which bolt 6 serves to fix the rail to the roof panel. The bolt passes through the opening 1.3 of the roof panel, through the U-shaped recess 2.3 and through the hole 7.3. The bolt 6 may be made of a screw engaging a nut in the beam. Such accessories and corresponding water seals for protecting the inner layers of a vehicle from rain are known to those skilled in the art. The roof rail is an elongated profile which may comprise an inner reinforcement and may be provided with a pillar comprising a bolt for attaching the cross member to the roof panel at a fixing area. The roof rail and the accessory may take any suitable form, shape or size without departing from the scope of the present invention.
In fig. 2D it is shown in particular that the welding between the roof panel 1 and the frame 2 is effected during the step of tightening the bolts 6. The stress that is generated when the bolts 6 are tightened and that may damage the shape of the roof panel 1 is offset by the presence of the reinforcement frame 2.
The invention also relates to a motor vehicle (not shown) equipped with a body structure according to the invention. The motor vehicle has a sunroof mounted on a vehicle body structure. The sunroof may be of any type, i.e. fixed, pivotable and/or slidable, panoramic, transparent or opaque, … … type of vehicle made of fabric or glass, not necessarily equipped with a roof rail, but comprising features allowing the mounting of the roof rail, in particular features of the body structure of the invention. The recess/aperture may be covered by a suitable cover and the roof rail may be installed as an after market.
The invention further relates to a method of manufacturing a motor vehicle comprising a body structure according to the invention. In the method of the invention, the roof panel is assembled to the reinforcement frame in a welding line and the roof rail is assembled to the roof panel in an assembly line that is downstream of the welding line in the production line.
Claims (8)
1. A body structure of a motor vehicle, the structure comprising:
a roof panel (1) comprising an outer edge (1.1) bounding an outer dimension of the roof panel and an inner edge (1.2) defining an opening (4) for receiving a sunroof;
a reinforcing frame (2) for supporting the roof window, having an outer edge (2.1) defining the outer dimensions of the reinforcing frame (2) and an inner edge (2.2) defining an opening (4) substantially matching the opening of the roof panel (1);
at least one fastening region (3) in which the roof rail (5) can be fastened to the roof panel (1),
it is characterized in that the preparation method is characterized in that,
the outer edge (2.1) of the reinforcing frame (2) is provided with a U-shaped groove (2.3) in the fixing region (3), which U-shaped groove has two side portions (2.31, 2.33) and a central portion (2.32), the reinforcing frame (2) being welded to the roof panel (1) in the central portion (2.32) of the U-shaped groove (2.3).
2. The vehicle body structure according to claim 1, characterized in that the roof panel (1) and the reinforcing frame (2) are welded by cold metal transfer technique.
3. The vehicle body structure according to claim 1 or 2, characterized in that the reinforcing frame (2) is further welded to the roof panel at least on certain portions of the respective inner edges (1.2, 2.2) of the reinforcing frame and the roof panel (1).
4. Vehicle body structure according to claim 1, 2 or 3, characterized in that the roof panel (1) comprises an opening (1.3) for accommodating an accessory of the roof rail, wherein the dimensions of the opening (1.3) substantially match the dimensions of the U-shaped recess (2.3) of the stiffening frame (2).
5. A vehicle body structure according to claim 4, characterized by comprising a vehicle body side (7) and at least one roof rail (5) fixed to the roof panel (1) in the fixing region (3), in which the longitudinal roof rail (5) is fixed to the roof panel (1) by means of a bolt (6) passing through the opening (1.3) of the roof panel (1), through the U-shaped groove (2.3) of the reinforcing frame (2) and through a hole (7.3) in the vehicle body side (7).
6. The vehicle body structure according to any one of claims 1 to 5, characterized by comprising a vehicle body side (7) in which, outside the fixing region (3), an outer edge (2.1) of the reinforcing frame (2) is not in contact with the roof panel (1) and is dispersedly or continuously bonded to the vehicle body side (7).
7. A motor vehicle having a roof window mounted on a vehicle body structure, characterized in that the vehicle body structure is a vehicle body structure according to any one of the preceding claims.
8. A method of manufacturing a motor vehicle comprising a body structure according to any one of claims 1 to 6, wherein the reinforcing frame (2) is assembled to the roof panel (1) on a welding line of a production line and the roof rail (5) is assembled to the roof panel on an assembly line, i.e. downstream of the welding line in the production line.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/081280 WO2018191919A1 (en) | 2017-04-20 | 2017-04-20 | Body structure of a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111278671A true CN111278671A (en) | 2020-06-12 |
Family
ID=63855494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780089859.6A Pending CN111278671A (en) | 2017-04-20 | 2017-04-20 | Body structure of motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111278671A (en) |
| WO (1) | WO2018191919A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0096846A2 (en) * | 1982-06-15 | 1983-12-28 | Adam Opel Aktiengesellschaft | Body for motor vehicles, especially for passenger cars, and method of manufacturing such a body |
| FR2887217A1 (en) * | 2005-06-15 | 2006-12-22 | Renault Sas | SUPPORT STRUCTURE OF A MOTOR VEHICLE PAVILION |
| CN203637527U (en) * | 2013-12-13 | 2014-06-11 | 东风汽车公司 | Reinforcing ring structure of automobile sunroof |
| CN203995597U (en) * | 2014-08-29 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Car body top cover and skylight reinforcing frame fit structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5040525B2 (en) * | 2007-08-27 | 2012-10-03 | トヨタ自動車株式会社 | Vehicle roof structure |
| DE102014104920B4 (en) * | 2013-11-19 | 2022-10-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Body structure with roof rails |
| CN105109311B (en) * | 2015-06-16 | 2017-07-11 | 武汉凯沃森天窗系统有限公司 | A kind of vehicle dormer window |
| CN204726208U (en) * | 2015-07-07 | 2015-10-28 | 神龙汽车有限公司 | A kind of baffle plate connection structure of skylight |
-
2017
- 2017-04-20 CN CN201780089859.6A patent/CN111278671A/en active Pending
- 2017-04-20 WO PCT/CN2017/081280 patent/WO2018191919A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0096846A2 (en) * | 1982-06-15 | 1983-12-28 | Adam Opel Aktiengesellschaft | Body for motor vehicles, especially for passenger cars, and method of manufacturing such a body |
| FR2887217A1 (en) * | 2005-06-15 | 2006-12-22 | Renault Sas | SUPPORT STRUCTURE OF A MOTOR VEHICLE PAVILION |
| CN203637527U (en) * | 2013-12-13 | 2014-06-11 | 东风汽车公司 | Reinforcing ring structure of automobile sunroof |
| CN203995597U (en) * | 2014-08-29 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Car body top cover and skylight reinforcing frame fit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018191919A1 (en) | 2018-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20231201 |