EP2190685A2 - Türband für automobil, tür für automobil und herstellungsverfahren dafür - Google Patents
Türband für automobil, tür für automobil und herstellungsverfahren dafürInfo
- Publication number
- EP2190685A2 EP2190685A2 EP08832534A EP08832534A EP2190685A2 EP 2190685 A2 EP2190685 A2 EP 2190685A2 EP 08832534 A EP08832534 A EP 08832534A EP 08832534 A EP08832534 A EP 08832534A EP 2190685 A2 EP2190685 A2 EP 2190685A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- zone
- box
- structural section
- strip
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title description 7
- 238000003466 welding Methods 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 4
- 230000000750 progressive effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 3
- 238000001962 electrophoresis Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
Definitions
- the present invention relates to a door strip for a motor vehicle, a motor vehicle door and methods of manufacturing the same.
- the door 1 comprises a strip 2 which is structurally sized to withstand sudden stresses by the door 1.
- the strip 2 is made by roller burnishing followed by a laser welding 21.
- the resistance welding or SR is an electrical resistance welding method. The welding is performed by points between two electrodes, without adding material.
- On the strip 2 is then fixed, by resistance welding, SR, or riveting 12, a box 3 consisting of a thin sheet of trim, or bodywork.
- the door most often comprises a rivet 15 which requires a joint drilling of the box 3 and the strip 2. This drilling is currently difficult or requires expensive tooling solutions.
- the slightest change in shape, including local, impacting the rabbet, requires the modification of the production tools of the box 3 and the strip 2.
- the strip 2 is in no way independent of the shape of the box 3.
- the present invention overcomes these disadvantages by proposing a solution separating the structural form, thus allowing to separately optimize the constraints of each category.
- the subject of the invention is a motor vehicle door strip, characterized in that it comprises a substantially U-shaped section structural section, a box support piece comprising a substantially flat central zone facing the branches of said U, an upper zone and a lower zone, the structural section being fixed by the branches of the U on the central zone of the box support piece, by simultaneous welding SEFG laser welding of the two branches of the U.
- An advantage of the device according to the invention is that the U-shaped structural section meets the structural constraints, while the box support part meets the shape constraints of the box. This simplifies the solutions of the structural problems, while offering a diversity and a flexibility in the design of the forms.
- the support piece has in its upper zone, respectively lower, any shape, complementary to the shape of an upper zone, respectively lower, of a door box, and can be directly attached to this box.
- Another advantage of the device according to the invention is to allow the realization of a strip having a hollow body with two rabbets, said rabbets being curvable.
- Another advantage of the device according to the invention is to allow easy drilling of the support member for the realization of an opening for the passage of a cataphoresis.
- Another advantage of the device according to the invention is to provide a simpler manufacturing process, more economical and transferable anywhere in the world.
- FIG. 1 (already described) illustrates a motor vehicle door, seen in section, according to the prior art
- Figure 2 illustrates a motor vehicle door, sectional view, according to the invention
- Figure 3 illustrates a step of the method of manufacturing a door strip according to the invention.
- a motor vehicle door strip 2 according to the invention comprises a structural section
- a caisson support member 5 comprising a substantially flat central zone 6 facing the branches of said U, an upper zone 7 and a lower zone 8.
- the structural section 4 is fixed by the branches of the U on the central zone 6 of the caisson support part 5. This fixing is advantageously carried out by welding by laser solder Electric Weld Wire Gas or SEFG simultaneous of the two branches of the U.
- SEFG Weld Wire Gas
- SEFG Welding type Electric Weld Wire Gas or SEFG is an electric arc welding, with electrode wire in solid steel, consumable, under a gaseous protective atmosphere.
- the central portion 6 of the box support member 5 is substantially planar to correspond to the branches of the U of the structural section 4 which is rectilinear.
- the upper zone 7, respectively the lower zone 8, may be of any shape, and is advantageously curved to correspond to the shape of the caisson 3 in its upper zone 9, respectively lower 10, at the level of the rabbets.
- the structural section 4 can thus be made of a material, and have a thickness, determined to withstand the forces that can be experienced by the door strip.
- the structural section 4 can be made of THLE (steel with very high elastic limit) or aluminum.
- the structural section 4 is not limited in thickness to 2 mm.
- the structural section 4 has a simple rectilinear shape. It can be obtained by hot stamping, stamping on a progressive tool. Its particularly simple shape advantageously makes it possible to cut it into an existing preform. This pre existing profile can be purchased by the meter.
- the support part 5 is the part of the strip 2 which assumes the shape constraints of the strip. Thus, its central portion 6 is substantially planar so as to be welded to the structural section 4.
- the upper zone 7, respectively the lower zone 8, of the support part 5, are shaped, as transition elements, in order to adapt to the shape of an upper zone 9, respectively lower 10, of a door box 3.
- the box can be directly assembled on the support part 5, to achieve an upper rabbet, respectively lower, directly adaptable, for example, to the curve of the window.
- the support part 5 not having to withstand very high structural stresses may have a reduced thickness.
- its material may be steel sheet or aluminum.
- the support piece 5 is made of steel or aluminum, to be welded by laser brazing, optionally, on a structural section 4 steel, or aluminum.
- the casing 3 made of aluminum or, more often, steel, can be welded to a support piece 5 of similar material.
- a box 3 may be riveted to a support part 5 of different material.
- the support part 5, of reduced thickness and made of a material of average mechanical characteristics, can advantageously be achieved by stamping on a progressive tool.
- This embodiment is economically advantageous.
- the support part 5 can be pierced with an opening 13 between the two branches of the U. This allows easy passage of cataphoresis.
- the support part 5 is easy to drill.
- the structural section 4 by its U-shape does not have to be drilled for this implementation.
- the invention also relates to a door 1 of a motor vehicle comprising a door strip 2 according to any one of the preceding embodiments and a thin sheet door box 3 comprising an upper zone 9 and a lower zone 10, assembled by welding SR or riveting their upper zones 7, 9, and respective lower 8, 10, respectively.
- the manufacture of a motor vehicle door strip 2 comprises the following steps. Fabrication, by stamping or cutting, of a substantially U-shaped structural section 4. Fabrication, by stamping on a progressive tool, of a support part 5 of box, comprising a substantially flat central zone 6, an upper zone 7 and a lower zone 8, shaped in its upper zone, respectively lower, in any form, complementary to the shape of an upper zone 9, respectively lower 10, d a door box 3. SEFG synchronized double laser soldering welding, of the two branches of the U of the structural section 4, on the central zone 6 of the support part 5 of the box.
- FIG. 3 illustrates the welding step.
- the support part 5 is integral, possibly pierced with an opening 13. It is placed on a lower support 18.
- the structural section 4 is placed against the support part 5 in the end position.
- This assembly is held by a support exerted by means of an upper support 17.
- Two synchronized lasers 19, on either side of the profile 4, animated by a linear movement relative to said assembly each then realize one of the welds 11 between the structural section 4 and the support part 5.
- This welding assembly is advantageously carried out offline.
- the manufacture of a door 1 of a motor vehicle according to the invention comprises the following steps. Manufacture of a door strip 2 by the above method. Manufacturing a thin sheet door box 3 comprising an upper zone 9 and a lower zone 10, by any method known to those skilled in the art. Assembling said door strip 2 and said door box 3 by SR welding or riveting, their respective upper zones 7, 9 and 8, 10 respectively.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Body Structure For Vehicles (AREA)
- Laser Beam Processing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0757635A FR2921017B1 (fr) | 2007-09-17 | 2007-09-17 | Bandeau de porte pour vehicule automobile, porte de vehicule automobile et procedes de fabrication de ceux-ci |
| PCT/FR2008/051511 WO2009037411A2 (fr) | 2007-09-17 | 2008-08-20 | Bandeau de porte pour vehicule automobile, porte de vehicule automobile et procedes de fabrication de ceux-ci |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2190685A2 true EP2190685A2 (de) | 2010-06-02 |
Family
ID=39356616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08832534A Withdrawn EP2190685A2 (de) | 2007-09-17 | 2008-08-20 | Türband für automobil, tür für automobil und herstellungsverfahren dafür |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2190685A2 (de) |
| FR (1) | FR2921017B1 (de) |
| WO (1) | WO2009037411A2 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2956170B1 (fr) * | 2010-02-11 | 2012-02-24 | Peugeot Citroen Automobiles Sa | Ensemble comprenant deux pieces soudees l'une a l'autre et porte de vehicule automobile comportant un tel ensemble |
| FR2962670B1 (fr) | 2010-07-15 | 2012-07-13 | Renault Sa | Assemblage par brasage unilateral inductif d'une tole fine et d'un profile creux, et le procede correspondant. |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4240822C1 (de) * | 1992-12-04 | 1994-04-28 | Daimler Benz Ag | Schweißverbindung zwischen einem Stahlblech-Bauteil und einem Aluminiumblech-Bauteil sowie Abdeckteil |
| DE4240824A1 (de) * | 1992-12-04 | 1994-01-13 | Daimler Benz Ag | Schweiß-Verbindung eines Stahlblech-Bauteiles mit einem Aluminiumblech-Bauteil |
| DE19538595A1 (de) * | 1995-10-17 | 1997-04-24 | Thyssen Industrie | Kfz-Tür oder Kfz-Klappe |
| JPH11254968A (ja) * | 1998-03-13 | 1999-09-21 | Isuzu Motors Ltd | 車両のドア補強構造 |
| DE10037303A1 (de) * | 2000-07-28 | 2002-02-21 | Thyssenkrupp Technologies Ag | Verfahren zur Herstellung einer Tür eines Kraftfahrzeuges und nach diesem Verfahren hergestellte rahmenlose Tür |
| ITTO20010377A1 (it) * | 2001-04-18 | 2002-10-18 | U T S S P A | Procedimento per l'assemblaggio di una parte di carrozzeria di un autoveicolo quale una porta, un portellone o un cofano. |
| US6957848B2 (en) * | 2003-06-13 | 2005-10-25 | Shiloh Industries, Inc. | Engineered welded blank |
-
2007
- 2007-09-17 FR FR0757635A patent/FR2921017B1/fr not_active Expired - Fee Related
-
2008
- 2008-08-20 EP EP08832534A patent/EP2190685A2/de not_active Withdrawn
- 2008-08-20 WO PCT/FR2008/051511 patent/WO2009037411A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009037411A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2921017B1 (fr) | 2009-10-30 |
| WO2009037411A3 (fr) | 2009-05-07 |
| WO2009037411A2 (fr) | 2009-03-26 |
| FR2921017A1 (fr) | 2009-03-20 |
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Legal Events
| Date | Code | Title | Description |
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| 17P | Request for examination filed |
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| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
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| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| INTG | Intention to grant announced |
Effective date: 20130719 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20131130 |