DE10339831B3 - Cross member behind outer skin of bumper of motor vehicle has plastically deformable profile with upper and lower surfaces each having on end of cross member at least one cut-out located perpendicularly to direction of impact force - Google Patents
Cross member behind outer skin of bumper of motor vehicle has plastically deformable profile with upper and lower surfaces each having on end of cross member at least one cut-out located perpendicularly to direction of impact force Download PDFInfo
- Publication number
- DE10339831B3 DE10339831B3 DE2003139831 DE10339831A DE10339831B3 DE 10339831 B3 DE10339831 B3 DE 10339831B3 DE 2003139831 DE2003139831 DE 2003139831 DE 10339831 A DE10339831 A DE 10339831A DE 10339831 B3 DE10339831 B3 DE 10339831B3
- Authority
- DE
- Germany
- Prior art keywords
- cross member
- bumper
- profile
- motor vehicle
- cut
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
Abstract
Description
Die Erfindung betrifft einen Querträger für ein Kraftfahrzeug nach dem Oberbegriff des Anspruchs 1.The The invention relates to a cross member for a motor vehicle according to the preamble of claim 1.
Derartige Querträger sind direkt hinter der Stoßfängeraußenhaut, die in der Regel aus lackiertem Kunststoff gefertigt ist, positioniert. Die Querträger nehmen die bei leichten Auffahrstößen wirkenden Kräfte durch Verformung auf.such crossbeam are directly behind the bumper skin, which is usually made of painted plastic, positioned. The crossbeams take the forces acting on light collision surges through Deformation on.
Bekannte Querträger weisen einen offenen oder geschlossenen eckigen Querschnitt auf und folgen in ihrer Kontur der Stoßfängeraußenhaut, um möglichst wenig Leerweg bei einem Aufprall aufzuweisen, und so die wirkenden Kräfte direkt aufnehmen zu können. Fertigungsbedingt weisen hierbei die freien Enden der Querträger scharfe Kanten auf.Known crossbeam have an open or closed square cross-section and follow in their contour of the bumper skin to possibly have little free travel in an impact, and so the acting personnel to record directly. For manufacturing reasons, the free ends of the cross member have sharp Edges up.
Kommt es zu einer Krafteinwirkung auf den Stoßfänger, so wird der Stoßfänger an den seitlichen Trägerabschnitt des Querträgers gedrückt. Hierbei kann sich die scharfe Kante des seitlichen Trägerabschnitts durch den weichen Kunststoff der Stoßfängeraußenhaut stanzen und diese dauerhaft beschädigen, wodurch ein Austausch erforderlich wird.comes If there is a force on the bumper, so the bumper the lateral support section of the crossbeam pressed. Here, the sharp edge of the lateral support portion punch through the soft plastic of the bumper skin and this permanently to damage, whereby an exchange is required.
Aus
der
Weiterhin
ist aus der
Um derartige Beschädigungen zu vermeiden, ist es im Stand der Technik üblich, zum einen gummierte bzw. geschäumte Auflagen auf den scharfen Kanten der Trägerenden des Querträgers aufzubringen, die bei einem Andrücken der Stoßfängeraußenhaut auf diese Kanten eine Abzeichnung auf der Stoßfängeraußenhaut verhindern.Around such damage To avoid it is common in the art, for a gummed or foamed To apply overlays on the sharp edges of the beam ends of the cross member when pressed the bumper skin to prevent these edges from marking on the bumper skin.
Eine andere praktizierte Lösung ist, dass in einem weiteren Werkzeuggang bei der Formgebung des Querträgers eine Umformung der Trägerenden derart vorgenommen wird, dass die vorstehende scharfe Kante nach innen eingedrückt wird, so dass im Falle eines Andrückens der Stoßfängeraußenhaut an den Querträger ein flächiges Anliegen in diesem Bereich verwirklicht wird.A other practiced solution is that in another tooling in the shaping of the crossbeam a deformation of the carrier ends such Make sure the protruding sharp edge is inside pressed is, so that in case of pressing the bumper skin on the crossbeam a flat Concerns in this area is realized.
Es handelt sich in beiden Fällen um Lösungen, die das zugrundeliegende Problem vollständig ausräumen. Allerdings ist dabei nachteilig, dass es sich in beiden Fällen um kosten- und fertigungsaufwendige Lösungen handelt, die zudem zusätzliche Werkzeuggänge erforderlich machen.It is in both cases to solutions, which completely eliminate the underlying problem. However, it is there disadvantageous that in both cases cost and production-consuming solutions which also requires additional toolpaths do.
Die Aufgabe der vorliegenden Erfindung vor diesem Hintergrund ist es daher, die Nachteile der bisherigen Querträger auszuräumen und einen Querträger zu schaffen, der eine Beschädigung der Stoßfängeraußenhaut durch die vorstehende scharfe Kante der Querträgerenden vermeidet.The Object of the present invention against this background is it Therefore, to overcome the disadvantages of the previous cross member and to create a cross member, the damage the bumper skin avoids by the projecting sharp edge of the cross member ends.
Erreicht wird dies nach der Erfindung durch einen Querträger für ein Kraftfahrzeug mit den Merkmalen des Patentanspruches 1.Reached This is according to the invention by a cross member for a motor vehicle with the Features of claim 1.
Die Unteransprüche haben vorteilhafte Weiterbildungen der Erfindung zum Gegenstand.The under claims have advantageous developments of the invention the subject.
Erfindungsgemäß weisen die Querträger an ihren Enden Aussparungen auf, die eine Verformung der Querträgerenden bei einer Krafteinwirkung auf den Stoßfänger in diesem Bereich ermöglichen. Die scharfe Kante an den Enden des Querträgers wird durch eine Krafteinwirkung auf den Stoßfänger in diesem Bereich abgeknickt in eine schräg nach innen verlaufende Position. Die zuvor scharfe Kante ist somit nicht mehr vorhanden, so dass die Stoßfängeraußenhaut durch diese nicht mehr beschädigt werden kann.According to the invention the crossbeams at their ends recesses, which is a deformation of the cross member ends allow for a force on the bumper in this area. The sharp edge at the ends of the cross member is by a force on the bumper in this area kinked in an obliquely inward running position. The previously sharp edge is thus no longer present, so that the bumper skin no longer damaged by this can be.
Hierdurch wird die Herstellung des Querträgers vereinfacht, da der zuvor erforderliche zusätzliche Werkzeuggang zur Verformung der Trägerenden wegfällt. Im Falle einer Krafteinwirkung auf den Stoßfänger wird diese Verformung durch die Krafteinwirkung selbst bewirkt. Die Querträgerenden werden somit erst im Falle einer tatsächlichen Belastung des Querträgers in die gewünschte Form derart gebracht, dass im Falle eines Andrückens der Stoßfängerhaut an den Querträger ein flachiges Anliegen in diesen Bereich verwirklicht wird ohne dabei die Stoßfängeraußenhaut zu beschädigen.As a result, the production of the cross member is simplified because the previously required additional tool path for the deformation of the carrier ends is eliminated. In the case of a force on the bumper this deformation is caused by the force itself. The cross member ends are thus brought in the event of an actual load on the cross member in the desired shape such that in the case of pressing the bumper skin to the cross member, a flat concerns in this area is realized without damaging the bumper outer skin.
Ein Ausführungsbeispiel der Erfindung ist nachstehend anhand von Zeichnungen näher beschrieben. Es zeigenOne embodiment The invention is described below with reference to drawings. Show it
Der
Querträger
Der
Querträger
An
den beiden Querträgerenden
Es wird des Weiteren berücksichtigt, dass der erfindungsgemäße Querträger bei mehreren Kraftfahrzeugen mit unterschiedlichen Stoßfängergestaltungen sowohl als Front- als auch Heckquerträger einsetzbar ist.It will also be taken into account that the cross member according to the invention in several vehicles with different bumper designs can be used both as a front and rear cross member.
- 1 1
- Querträgercrossbeam
- 2 2
- Profilprofile
- 3 3
- Aussparungrecess
- 44
- Flanschflange
- 5 5
- Gestanzte Durchbrechungenpunched perforations
- 6 6
- s-förmige Abwinkelungs-shaped angling
- 77
- scharfe Kantesharp edge
- 8 8th
- QuerträgerendeCrossmember end
- 9 9
- Mittelbereich Querträgerthe central region crossbeam
- 1010
- vordere Schlitzkantefront slot edge
- 1111
- hintere Schlitzkanterear slot edge
- 12 12
- obere nachgebende Flächeupper yielding area
- 13 13
- untere nachgebende Flächelower yielding area
- 14 14
- Aufprallflächeimpact surface
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003139831 DE10339831B3 (en) | 2003-08-29 | 2003-08-29 | Cross member behind outer skin of bumper of motor vehicle has plastically deformable profile with upper and lower surfaces each having on end of cross member at least one cut-out located perpendicularly to direction of impact force |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003139831 DE10339831B3 (en) | 2003-08-29 | 2003-08-29 | Cross member behind outer skin of bumper of motor vehicle has plastically deformable profile with upper and lower surfaces each having on end of cross member at least one cut-out located perpendicularly to direction of impact force |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10339831B3 true DE10339831B3 (en) | 2005-01-20 |
Family
ID=33521573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003139831 Expired - Fee Related DE10339831B3 (en) | 2003-08-29 | 2003-08-29 | Cross member behind outer skin of bumper of motor vehicle has plastically deformable profile with upper and lower surfaces each having on end of cross member at least one cut-out located perpendicularly to direction of impact force |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10339831B3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1888377A1 (en) * | 2005-05-25 | 2008-02-20 | Gestamp HardTech AB | A bumper beam |
EP2052916A3 (en) * | 2007-10-26 | 2009-09-09 | Honda Motor Co., Ltd. | Bumper beam structure for vehicle |
EP1963138A4 (en) * | 2005-12-15 | 2017-04-12 | Gestamp HardTech AB | A bumper beam |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4119638C1 (en) * | 1991-06-14 | 1992-07-02 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Support for forces induced via car bumper - has two longitudinal girders, each with front recesses for transverse girder |
DE19912272A1 (en) * | 1999-03-18 | 2000-09-28 | Benteler Werke Ag | Bumper assembly |
-
2003
- 2003-08-29 DE DE2003139831 patent/DE10339831B3/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4119638C1 (en) * | 1991-06-14 | 1992-07-02 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Support for forces induced via car bumper - has two longitudinal girders, each with front recesses for transverse girder |
DE19912272A1 (en) * | 1999-03-18 | 2000-09-28 | Benteler Werke Ag | Bumper assembly |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1888377A1 (en) * | 2005-05-25 | 2008-02-20 | Gestamp HardTech AB | A bumper beam |
EP1888377A4 (en) * | 2005-05-25 | 2010-03-03 | Gestamp Hardtech Ab | A bumper beam |
EP1963138A4 (en) * | 2005-12-15 | 2017-04-12 | Gestamp HardTech AB | A bumper beam |
EP2052916A3 (en) * | 2007-10-26 | 2009-09-09 | Honda Motor Co., Ltd. | Bumper beam structure for vehicle |
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Legal Events
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8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GM GLOBAL TECHNOLOGY OPERATIONS, INC., DETROIT, MI |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: STRAUSS, P., DIPL.-PHYS.UNIV. MA, PAT.-ANW., 65191 |
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8380 | Miscellaneous part iii |
Free format text: PFANDRECHT |
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8380 | Miscellaneous part iii |
Free format text: PFANDRECHT AUFGEHOBEN |
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8380 | Miscellaneous part iii |
Free format text: PFANDRECHT |
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8327 | Change in the person/name/address of the patent owner |
Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC , ( N. D. , US |
|
R081 | Change of applicant/patentee |
Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC (N. D. GES, US Free format text: FORMER OWNER: GM GLOBAL TECHNOLOGY OPERATIONS, INC., DETROIT, MICH., US Effective date: 20110323 |
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R082 | Change of representative | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |