DE102007032029A1 - Front-end for motor vehicle i.e. automobile, has honeycomb structure part upstream to profile part i.e. aluminum-extruding press profile, of leg rest and formed to be flexible than profile part, which extends over automobile width - Google Patents
Front-end for motor vehicle i.e. automobile, has honeycomb structure part upstream to profile part i.e. aluminum-extruding press profile, of leg rest and formed to be flexible than profile part, which extends over automobile width Download PDFInfo
- Publication number
- DE102007032029A1 DE102007032029A1 DE200710032029 DE102007032029A DE102007032029A1 DE 102007032029 A1 DE102007032029 A1 DE 102007032029A1 DE 200710032029 DE200710032029 DE 200710032029 DE 102007032029 A DE102007032029 A DE 102007032029A DE 102007032029 A1 DE102007032029 A1 DE 102007032029A1
- Authority
- DE
- Germany
- Prior art keywords
- profile
- profile part
- motor vehicle
- automobile
- honeycomb structure
- 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- Withdrawn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
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
- B62D25/08—Front or rear portions
- B62D25/082—Engine compartments
- B62D25/084—Radiator supports
-
- 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
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
- B60R19/12—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement vertically spaced
-
- 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
- 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
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
- B60R2019/1866—Cellular structures
-
- 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
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
- B60R2019/188—Blow molded structures
Abstract
Description
Die Erfindung betrifft einen Vorbau eines Kraftfahrzeugs, insbesondere eines Kraftwagens, gemäß den Merkmalen des Oberbegriffs des Patentanspruchs 1.The The invention relates to a stem of a motor vehicle, in particular of a motor vehicle, according to the characteristics of the preamble of claim 1
Um die gesetzlichen Vorgaben für den Fußgängeraufprallschutz zu erfüllen, hat sich im Serienfahrzeugbau durchgesetzt, zusätzlich zu einer oberen Abstützebene eine untere Lastebene für den Beinanprall vorzusehen. Diese untere Beinabstützung ist so gestaltet, dass bei einem Fußgängeranprall die Beine nicht unter das Fahrzeug abtauchen können. Die untere Beinabstützung ist daher häufig als verripptes Kunststoffteil ausgebildet, das sich an der Tragstruktur des Kraftfahrzeugs abstützt.Around the legal requirements for pedestrian impact protection to meet, has prevailed in series production, in addition to an upper support plane, a lower Provide load level for the leg impact. This lower one Leg support is designed to withstand a pedestrian impact your legs can not submerge under the vehicle. The lower leg support is therefore often as ribbed Plastic part formed on the support structure of the motor vehicle supported.
Aus
der
Obwohl sich die Extrusion von derartigen Hohlkörpern mit variablen Wandstärken relativ einfach realisieren lässt, sind derartige Abstützungen jedoch in der Entwicklung relativ aufwendig, da das Teil für die unterschiedlichsten Belastungsfälle ausgelegt werden muss.Even though the extrusion of such hollow bodies with variable Wall thicknesses relatively easy to implement, However, such supports are relatively in development consuming, because the part for a variety of load cases must be interpreted.
Es besteht daher die Aufgabe der Erfindung darin, eine untere Beinabstützung für einen Vorbau eines Kraftfahrzeugs dahingehend weiterzuentwickeln, dass unter Beibehaltung der positiven Kraft-Weg-Kennung die Entwicklungsumfänge verkürzt werden.It Therefore, the object of the invention is a lower leg support for a stem of a motor vehicle to evolve to that while maintaining the positive force-path identifier the development scopes be shortened.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Patentanspruchs 1 gelöst.These Task is according to the invention with the features of claim 1.
Vorteilhafte Ausgestaltungen ergeben sich aus den Merkmalen der Unteransprüche.advantageous Embodiments result from the features of the subclaims.
Erfindungsgemäß weist der Vorbau eines Kraftfahrzeugs, insbesondere eines Kraftwagens eine untere Beinabstützung auf, die – in Fahrtrichtung gesehen – in zwei Steifigkeitsbereiche unterteilt ist. Die Beinabstützung umfasst dabei ein Deformationsprofilteil und ein dem Deformationsprofilteil vorgelagerten Bereich, der nachgiebiger als das Deformationsprofilteil ausgebildet ist. Aufgrund des zweigeteilten Steifigkeitsverlaufs kann auf komplizierte Wandstärkenvariationen im Deformationsprofilteil verzichtet und beispielsweise Strangpressprofile eingesetzt werden. Durch den vorgelagerten nachgiebigen Bereich lässt sich ein gezielter Energieabbau beim ersten Kontakt des Beins mit der Stoßfängereinheit realisieren. Danach wird durch das Deformationsprofilteil ein gezielter Widerstand gegen das Untertauchen des Beins bewirkt. Von Vorteil ist, dass der erste Impuls auf das Fußgängerbein dadurch gering gehalten werden kann, jedoch im weiteren Verlauf des Aufpralls ausreichender Widerstand gegen das Untertauchen aufgebracht wird. Der zweigeteilte Steifigkeitsverlauf kann durch ein einziges Teil realisiert werden, aber auch durch zwei oder mehr separate Teile.According to the invention the stem of a motor vehicle, in particular a motor vehicle a Lower leg support, which - seen in the direction of travel - in two stiffness ranges is divided. The leg support includes a deformation profile part and a deformation profile part upstream region, the more yielding than the deformation profile part is trained. Due to the two-part stiffness course can on complicated wall thickness variations in the deformation profile part dispensed with and, for example, extruded profiles are used. By the upstream yielding area can be a targeted energy reduction at the first contact of the leg with the Realize bumper unit. After that is going through the deformation profile part a targeted resistance to submersion of the leg. The advantage is that the first impulse on the Pedestrian leg can be kept low, but in the further course of the impact sufficient resistance is applied against immersion. The two-part stiffness course can be realized by a single part, but also by two or more separate parts.
So kann vorzugsweise das Deformationsprofilteil als ein Strangpressprofil, insbesondere ein Aluminiumstrangpressprofil, ausgebildet sein. Dadurch lässt sich eine kostengünstige Beinabstützung auch im Rahmen von Leichtbaumaßnahmen realisieren.So may preferably be the deformation profile part as an extruded profile, in particular an aluminum extruded profile, be formed. By doing so leaves an inexpensive leg support also in the Realize the framework of lightweight construction measures.
Sofern der vorgelagerte Bereich ein Kunststoffteil ist, können die Beinaufprallwerte durch Wahl des entsprechenden Materials einfach abgestimmt werden.Provided the upstream area is a plastic part can the leg impact values by simply selecting the appropriate material be matched.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass das Kunststoffteil eine Wabenstruktur aufweist, wobei die Waben in Fahrzeughochrichtung ausgerichtet sind. Dadurch lässt sich eine weiche Struktur mit hohen Energieabsorptionswerten erreichen, da auch nicht betroffene Randbereiche in den Energieabbau einbezogen werden.A preferred embodiment of the invention is the plastic part has a honeycomb structure, the honeycombs aligned in the vehicle vertical direction. By doing so leaves to achieve a soft structure with high energy absorption values, since non-affected edge areas are also included in the energy reduction become.
Weitere vorteilhafte Ausgestaltungen der Erfindung werden im Folgenden anhand der Zeichnung näher erläutert. Dabei zeigen:Further advantageous embodiments of the invention will be described below explained in detail the drawing. Showing:
Die
untere Beinabstützung
Das
Deformationsprofilteil
Kommt
es nunmehr zu einem Fußgängeranprall mit einer
erfindungsgemäßen Beinabstützung, so
wird zunächst über den vorgelagerten Bereich
Im Rahmen der Erfindung, können verschiedene Möglichkeiten zur Lastniveauanpassung über die beiden Steifigkeitsbereiche erfolgen. Dies kann einerseits über besondere Materialwahl und andererseits durch besondere Gestaltung der beiden Teilbereiche erfolgen.in the Within the scope of the invention, various possibilities may exist for load level adjustment over the two stiffness ranges respectively. On the one hand, this can be done by special material selection and on the other hand by special design of the two sections respectively.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102004019149 A1 [0003] DE 102004019149 A1 [0003]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710032029 DE102007032029A1 (en) | 2007-07-10 | 2007-07-10 | Front-end for motor vehicle i.e. automobile, has honeycomb structure part upstream to profile part i.e. aluminum-extruding press profile, of leg rest and formed to be flexible than profile part, which extends over automobile width |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710032029 DE102007032029A1 (en) | 2007-07-10 | 2007-07-10 | Front-end for motor vehicle i.e. automobile, has honeycomb structure part upstream to profile part i.e. aluminum-extruding press profile, of leg rest and formed to be flexible than profile part, which extends over automobile width |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007032029A1 true DE102007032029A1 (en) | 2009-01-15 |
Family
ID=40121358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710032029 Withdrawn DE102007032029A1 (en) | 2007-07-10 | 2007-07-10 | Front-end for motor vehicle i.e. automobile, has honeycomb structure part upstream to profile part i.e. aluminum-extruding press profile, of leg rest and formed to be flexible than profile part, which extends over automobile width |
Country Status (1)
Country | Link |
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DE (1) | DE102007032029A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2540575A3 (en) * | 2011-06-30 | 2013-03-27 | Benteler Automobiltechnik GmbH | Bumper assembly for a motor vehicle |
DE102014008149A1 (en) * | 2014-05-30 | 2015-12-03 | Daimler Ag | Front end support for a passenger car |
DE102014017969A1 (en) * | 2014-12-04 | 2016-06-09 | Audi Ag | Bumper assembly of a vehicle body |
DE102016008931A1 (en) * | 2016-07-21 | 2017-06-22 | Daimler Ag | Cross member for a vehicle and vehicle body with such a cross member |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004019149A1 (en) | 2004-04-21 | 2005-11-24 | Daimlerchrysler Ag | Multi-part bumper unit |
-
2007
- 2007-07-10 DE DE200710032029 patent/DE102007032029A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004019149A1 (en) | 2004-04-21 | 2005-11-24 | Daimlerchrysler Ag | Multi-part bumper unit |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2540575A3 (en) * | 2011-06-30 | 2013-03-27 | Benteler Automobiltechnik GmbH | Bumper assembly for a motor vehicle |
DE102014008149A1 (en) * | 2014-05-30 | 2015-12-03 | Daimler Ag | Front end support for a passenger car |
DE102014008149B4 (en) * | 2014-05-30 | 2020-12-10 | Daimler Ag | Front end carrier for a passenger car |
DE102014017969A1 (en) * | 2014-12-04 | 2016-06-09 | Audi Ag | Bumper assembly of a vehicle body |
DE102016008931A1 (en) * | 2016-07-21 | 2017-06-22 | Daimler Ag | Cross member for a vehicle and vehicle body with such a cross member |
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Legal Events
Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: CW CONCEPT CONSULTING GMBH, GRATKORN, AT Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, 7, DE |
|
8128 | New person/name/address of the agent |
Representative=s name: SCHMIDT, A., DIPL.-ING. DR.-ING., PAT.-ANW., 70499 |
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R012 | Request for examination validly filed | ||
R005 | Application deemed withdrawn due to failure to request examination | ||
R409 | Internal rectification of the legal status completed | ||
R409 | Internal rectification of the legal status completed | ||
R012 | Request for examination validly filed |
Effective date: 20140618 |
|
R016 | Response to examination communication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |