EP1893449A1 - Energieabsorberelement und dieses verwendende kraftfahrzeugkarosserie - Google Patents
Energieabsorberelement und dieses verwendende kraftfahrzeugkarosserieInfo
- Publication number
- EP1893449A1 EP1893449A1 EP06762135A EP06762135A EP1893449A1 EP 1893449 A1 EP1893449 A1 EP 1893449A1 EP 06762135 A EP06762135 A EP 06762135A EP 06762135 A EP06762135 A EP 06762135A EP 1893449 A1 EP1893449 A1 EP 1893449A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy absorber
- absorber element
- section
- cross
- pipe section
- 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- Withdrawn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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/123—Deformation involving a bending action, e.g. strap moving through multiple rollers, folding of members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
Definitions
- the present invention relates to an energy absorbing member and a vehicle body in which it is used.
- the object of the present invention is to specify an energy-absorbing element which achieves high rigidity with small transverse dimensions and with low material and expense.
- an energy absorber element having a pipe section, in which the cross section of the pipe section has at least one concavity.
- the more or less rounded additional edges resulting from the concavity act stiffening without requiring an increase in the transverse dimensions of the energy absorber element and without having to increase the wall cross-sectional area of the tube section and thus the amount of material and weight used.
- the pipe section is expediently a section of a profile that is roll-formed from a steel strip.
- edges of the steel strip are suitably welded together for stiffening.
- the weld is preferably in the concavity, so that any irregularities and protrusions of the weld do not hinder the assembly of the energy absorber element.
- the side walls of the tube section are longer in cross-section than an imaginary cross-sectioned thread that connects the outermost points of the cross-section without dipping into the concavity.
- the length of the side walls of the pipe section is at least a quarter larger than the length of the thread.
- a comparatively simple, but effective for stiffening cross-sectional shape of the pipe section are two connected by a web hollow sections.
- a mounting flange for connecting the energy absorber element to a body part is expediently welded to a longitudinal end of the pipe section.
- the energy absorbing element is preferably arranged extending between a side member and a cross member of the body in the vehicle longitudinal direction to yield at low speed in the event of a frontal collision and to protect the side member from deformation.
- the energy absorber element can be mounted in a motor vehicle bodywork in a simple and reliable manner by inserting a longitudinal end of the tube section into an open end of a pipe-like body part, in particular a longitudinal carrier. It can in the tubular body part by at least one of the Ka rosette part crossing pin element, such as a rivet or screw to be supported.
- flange plates fastened to mutually facing ends of the longitudinal member and the energy absorber may be screwed together.
- Fig. 1 is a perspective view of a
- Cross member of a motor vehicle body which is connected via two energy absorber elements according to the invention with two side rails;
- FIG. 2 is an enlarged view of a pipe section of the energy absorber element
- FIG 3 shows a section through the energy absorber element and a longitudinal member receiving it.
- Fig. 4 shows an alternative embodiment of
- FIG. 5 shows a further alternative embodiment of the cross member and of an energy absorbing element acting thereon
- Fig. 6 shows a modified embodiment of the cross member and a thereto attacking energy absorber element
- Fig. 1 is a schematic partial view of a
- the cross member 1 is composed of two sheets 4, 5, wherein the inner sheet 4 is formed into an approximately U-shaped cross-section with upwardly and downwardly projecting edge webs, and the substantially planar outer sheet 5, the open side of the U-section covered and welded to the protruding edges.
- the longitudinal members 2 are shown in the figure for the sake of simplicity as tubes with rectangular cross-section, but they can be welded together in the same way as the cross member 1 of individual sheets.
- the energy absorber elements 3 each comprise a pipe section 6, which is obtained by roll forming a sheet steel strip into a hollow profile and depositing a piece of this hollow profile.
- each 2 mounting flanges 7 are welded, of which in Fig. 1 only one can be seen.
- the mounting flanges 7 are in each case on the upper and lower legs of the U-section of the sheet 4 of the cross member 1 and are held on them by screws.
- the rear ends of the pipe sections 6 are each inserted into the longitudinal members 2 and secured in these by screws 8, each extending through holes in the walls of the longitudinal member 2 and the pipe section 6 inserted therein.
- FIG. 3 shows a section through a side member 2 and the tube section 6 inserted therein at the level of the screw 8.
- Cross-sectional shape of the pipe section 6 are understood as derived from a rectangular basic shape, in each case a concavity in the form of a groove 9 is formed with a rectangular cross-section in the two longitudinal sides of the rectangle.
- the bottoms of the two grooves 9 touch each other, and at the bottom of one of the two grooves 9, designated 9a, meet the edges 10 of the steel strip on each other, from which the pipe section 6 is roll-formed, so that a cross-sectional shape of two rectangular hollow sections 11, ver - bound by a double-walled web 12, results.
- the edges 10 are welded together and to the bottom of the opposite groove 9.
- the localization of the weld at the bottom of the groove 9a thus has the advantage, on the one hand, that the edges 10 can be connected to each other and to the bottom of the opposite groove 9b in a single operation, which gives the pipe section 6 a higher rigidity than if these soils intercommunicate unconnected would be.
- any projections which may arise can not hinder a fitting insertion of the pipe section 6 into the longitudinal member 2.
- the length of the wall of the pipe section 6 in cross-section is about twice the length. ge a narrow side greater than the length of an imaginary, wrapped around the pipe section 6 thread. At a ratio of the side lengths of the rectangular basic form of z. B. 1 to 1.5, this means that the wall length is about 40% larger than that of the thread.
- the multi-folded cross-sectional structure required for accommodating this large wall length with a total of 12 edges instead of four in a simple rectangular cross-section leads to a rigidity compared to the rectangular cross-section even if the wall cross-sectional area and thus the amount of material used and the weight of the pipe section according to the invention not larger than that of the simple rectangle profile.
- Fig. 4 shows an alternative embodiment of
- the horizontal flanges 7 of FIG. 1 are here replaced by two vertical flanges 7a, 7b, of which the one 7a on the U-shaped plate 4 of the cross girder 1 and the other at one End of one of the energy absorber elements 3 is welded and which are held together by screws 14.
- Fig. 5 shows in an enlarged partial view of another alternative embodiment of the cross member 1 and one of the attached energy absorber elements 3.
- the energy absorber element 3 is fixed to the cross member 1 as shown in Fig. 4 by two vertical flanges 7a, 7b screwed together.
- the energy absorber element 3 does not intervene here in the longitudinal member 2, but the mutually facing ends of the energy absorber element 3 and the longitudinal members 2 are respectively closed by a welded flange plate 7c or 7d which, like the flange plates 7a, 7b, is connected by screws 14 are.
- Weld seams between the U-shaped plate 4 and the flange plate 7a or between the energy absorber berelement 3 and the flange plate 7c are designated 15.
- connection via flanges 7 or 7a, 7b between the energy absorber element 3 and the cross member 1 can also be replaced by a direct welding with welds 15.
- the inner plate 4 of the cross member has here no simple U-profile as in the embodiments considered above, but the increased rigidity because of a double, wherein the grooves 9 of the energy absorber element 3 are aligned with a gap 16 between two U-profile webs of the inner panel 4.
- a double U-profile can also be combined with the embodiments described above.
- flanges 7b or 7c welded to the tube section 6 of the energy absorber 3 may also be replaced by flanges 7 'which, as shown in the partial view of an energy absorber element in Fig. 7, are obtained by slitting the tube section 6 along its edges and at right angles are.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005029738.2A DE102005029738B4 (de) | 2005-06-24 | 2005-06-24 | Energieabsorberelement und dieses verwendende Kraftfahrzeugkarosserie |
| PCT/EP2006/005995 WO2006136405A1 (de) | 2005-06-24 | 2006-06-22 | Energieabsorberelement und dieses verwendende kraftfahrzeugkarosserie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1893449A1 true EP1893449A1 (de) | 2008-03-05 |
Family
ID=36942647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06762135A Withdrawn EP1893449A1 (de) | 2005-06-24 | 2006-06-22 | Energieabsorberelement und dieses verwendende kraftfahrzeugkarosserie |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US7926868B2 (de) |
| EP (1) | EP1893449A1 (de) |
| CN (1) | CN101171158B (de) |
| DE (1) | DE102005029738B4 (de) |
| RU (1) | RU2374097C2 (de) |
| WO (1) | WO2006136405A1 (de) |
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| DE102005029738B4 (de) | 2005-06-24 | 2018-10-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Energieabsorberelement und dieses verwendende Kraftfahrzeugkarosserie |
| US8454064B2 (en) * | 2006-04-25 | 2013-06-04 | GM Global Technology Operations LLC | Arrangement and method for attaching a bumper to side members of a vehicle |
| DE102007015865A1 (de) * | 2007-04-02 | 2008-10-16 | GM Global Technology Operations, Inc., Detroit | Kraftfahrzeug-Rahmenstruktur und Crashbox dafür |
| DE102008020694B4 (de) * | 2008-04-24 | 2012-11-22 | Benteler Automobiltechnik Gmbh | Kraftfahrzeugrahmen |
| DE102008026996B4 (de) * | 2008-06-05 | 2022-10-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Baugruppe zur Lagerung eines Scheinwerfers |
| US8539737B2 (en) | 2008-09-19 | 2013-09-24 | Ford Global Technologies, Llc | Twelve-cornered strengthening member |
| JP4738474B2 (ja) * | 2008-12-26 | 2011-08-03 | 豊田鉄工株式会社 | 車両用衝撃吸収部材 |
| JP5133297B2 (ja) * | 2009-05-14 | 2013-01-30 | 株式会社神戸製鋼所 | バンパー構造 |
| US20110198890A1 (en) * | 2010-02-17 | 2011-08-18 | Gm Global Technology Operations, Inc. | Closed-section structural member for a vehicle |
| US8276955B2 (en) * | 2010-03-26 | 2012-10-02 | Ford Global Technologies, Llc | Zero stack-up telescopically collapsible energy absorbing rail and bracket assembly |
| KR101154697B1 (ko) * | 2010-06-30 | 2012-06-08 | 현대자동차주식회사 | 차량의 프론트 범퍼 빔 |
| DE102010035619B4 (de) * | 2010-08-26 | 2022-04-07 | Benteler Automobiltechnik Gmbh | Kraftfahrzeug mit einem Deformationselement |
| DE102010054638A1 (de) * | 2010-12-15 | 2012-06-21 | Benteler Automobiltechnik Gmbh | Stoßfänger für ein Kraftfahrzeug |
| DE102011102116A1 (de) * | 2011-05-20 | 2012-11-22 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Crashstruktur zur Anbindung an einen Vorderhilfsrahmen für ein Kraftfahrzeug |
| DE102012018217A1 (de) * | 2012-09-14 | 2014-03-20 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Karosserie für ein Kraftfahrzeug |
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| DE102013007348A1 (de) * | 2013-04-27 | 2014-10-30 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Stoßfängeranordnung und Verfahren zu deren Herstellung |
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| KR101601428B1 (ko) * | 2014-06-03 | 2016-03-09 | 현대자동차주식회사 | 차량용 크래쉬박스 |
| DE102014009941A1 (de) | 2014-07-04 | 2016-01-07 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Stoßfängeraufbau für ein Kraftfahrzeug |
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| US9789906B1 (en) * | 2016-03-23 | 2017-10-17 | Ford Global Technologies, Llc | Twenty-eight-cornered strengthening member for vehicles |
| US10704638B2 (en) | 2016-04-26 | 2020-07-07 | Ford Global Technologies, Llc | Cellular structures with twelve-cornered cells |
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| US10562478B2 (en) * | 2018-02-23 | 2020-02-18 | Ford Global Technologies, Llc | Strengthening structure of a vehicle |
| US10829070B2 (en) * | 2018-02-23 | 2020-11-10 | Ford Global Technologies, Llc | Strengthening structure of a vehicle |
| EP3546295B1 (de) | 2018-03-30 | 2021-02-24 | voestalpine Krems GmbH | Energieabsorberelement für ein kraftfahrzeug |
| DE102018128321A1 (de) * | 2018-11-13 | 2020-05-14 | Bayerische Motoren Werke Aktiengesellschaft | Profilstrebe, insbesondere für ein Kraftfahrzeug |
| US11104283B2 (en) * | 2018-11-16 | 2021-08-31 | Aisin Seiki Kabushiki Kaisha | Vehicular energy absorbing member and manufacturing method thereof |
| EP3666597B1 (de) * | 2018-12-12 | 2020-11-18 | C.R.F. Società Consortile per Azioni | Stossfängerträger mit crash-box-modulen |
| EP3786000B1 (de) * | 2019-08-26 | 2025-12-24 | Volvo Car Corporation | Verbindungsvorrichtung zur verbindung eines fahrzeugaufpralldämpfungselements mit einer fahrzeugkarosseriekomponente |
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| DE102004014047B4 (de) * | 2004-03-19 | 2006-01-05 | Benteler Automobiltechnik Gmbh | Anbindung einer Crashbox an den Querträger |
| US7210717B1 (en) * | 2005-03-31 | 2007-05-01 | Ford Global Technologies, Llc | Lightweight bumper for automobiles |
| US7066508B1 (en) * | 2005-03-31 | 2006-06-27 | Ford Global Technologies, Llc | Bumper cross-section with hinges |
| DE202005008321U1 (de) * | 2005-04-27 | 2006-06-08 | Alcan Technology & Management Ag | Stoßstange mit Halterungen |
| DE102005029738B4 (de) | 2005-06-24 | 2018-10-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Energieabsorberelement und dieses verwendende Kraftfahrzeugkarosserie |
| EP1736369B1 (de) * | 2005-06-24 | 2013-01-16 | Benteler Automobiltechnik GmbH | Stossfänger für ein Kraftfahrzeug |
| JP4680784B2 (ja) * | 2006-01-17 | 2011-05-11 | 本田技研工業株式会社 | 自動車の前部車体構造 |
| US20070176442A1 (en) * | 2006-01-30 | 2007-08-02 | Nissan Technical Center North America, Inc. | Bumper stay |
| DE102007015865A1 (de) | 2007-04-02 | 2008-10-16 | GM Global Technology Operations, Inc., Detroit | Kraftfahrzeug-Rahmenstruktur und Crashbox dafür |
| US7503601B2 (en) * | 2007-05-31 | 2009-03-17 | Shape Corp. | B-shaped beam with radiused face but recessed center |
| DE102008020694B4 (de) | 2008-04-24 | 2012-11-22 | Benteler Automobiltechnik Gmbh | Kraftfahrzeugrahmen |
-
2005
- 2005-06-24 DE DE102005029738.2A patent/DE102005029738B4/de not_active Expired - Fee Related
-
2006
- 2006-06-22 EP EP06762135A patent/EP1893449A1/de not_active Withdrawn
- 2006-06-22 US US11/916,157 patent/US7926868B2/en not_active Expired - Fee Related
- 2006-06-22 WO PCT/EP2006/005995 patent/WO2006136405A1/de not_active Ceased
- 2006-06-22 RU RU2007140684/11A patent/RU2374097C2/ru not_active IP Right Cessation
- 2006-06-22 CN CN2006800150040A patent/CN101171158B/zh not_active Expired - Fee Related
-
2011
- 2011-02-24 US US13/033,823 patent/US8177269B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006136405A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080217935A1 (en) | 2008-09-11 |
| RU2007140684A (ru) | 2009-05-10 |
| DE102005029738A1 (de) | 2006-12-28 |
| US20110140465A1 (en) | 2011-06-16 |
| CN101171158B (zh) | 2010-11-10 |
| WO2006136405A1 (de) | 2006-12-28 |
| RU2374097C2 (ru) | 2009-11-27 |
| US7926868B2 (en) | 2011-04-19 |
| DE102005029738B4 (de) | 2018-10-04 |
| US8177269B2 (en) | 2012-05-15 |
| CN101171158A (zh) | 2008-04-30 |
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