WO2005063553A1 - Large bodywork part - Google Patents

Large bodywork part Download PDF

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Publication number
WO2005063553A1
WO2005063553A1 PCT/EP2004/013113 EP2004013113W WO2005063553A1 WO 2005063553 A1 WO2005063553 A1 WO 2005063553A1 EP 2004013113 W EP2004013113 W EP 2004013113W WO 2005063553 A1 WO2005063553 A1 WO 2005063553A1
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WO
WIPO (PCT)
Prior art keywords
body part
tabs
profile
part according
inner profile
Prior art date
Application number
PCT/EP2004/013113
Other languages
German (de)
French (fr)
Inventor
Andreas Dehn
Axel Fedeler
Artur Kurz
Rüdiger Röhrl
Original Assignee
Daimlerchrysler Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Priority to JP2006544244A priority Critical patent/JP2007515331A/en
Publication of WO2005063553A1 publication Critical patent/WO2005063553A1/en

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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
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars

Definitions

  • the invention relates to a large-area body part, in particular a hood or a front hood, according to the
  • bonnets or bonnets which are designed to be particularly impact-absorbing in certain areas.
  • the bonnets are designed in such a way that the impact energy that must be absorbed in the event of an impact can be reduced by deformation of the bonnet.
  • the intrusion depth of the bonnet must not exceed a certain level in order to avoid contact with drive units located below the bonnet.
  • DE 101 09 663 AI shows an impact-absorbing hood, which has a stiffening inner profile and is provided with an outer paneling.
  • the outer cladding is connected to the inner profile via connection elements.
  • the connection elements in DE 101 09 663 AI are designed as a bow, which are joined to the planking by adhesive layers.
  • the adhesive layers run around constantly on the bars, so that the bonnet is particularly stiffened in these areas. To the hood over her
  • the brackets have either elongated holes or beads in their side walls.
  • connection elements which connect the outer cladding to the inner profile are designed as tabs which protrude from the inner profile and are arranged at a distance from one another.
  • the cladding is therefore only at a few support points on the inner profile, so that a favorable deformation behavior is achieved in the event of a head impact.
  • the tabs are designed to support the planking.
  • each tab has a flange that receives an adhesive layer and on which the paneling can rest at points.
  • the stiffness can also be adjusted by varying the flange dimensions.
  • the tabs and the inner profile can advantageously be formed in one piece in order to save manufacturing costs.
  • the inner profile comprises a frame which overlaps an edge area of the outer paneling and which forms at least one recess.
  • the outer planking and the frame are connected to one another in these edge regions.
  • Profile struts arranged in the manner of a truss can run within the recess formed by the frame, the tabs projecting from the profile struts. This has the advantage that, depending on the respective impact area, for example the child's head impact area or the adult impact area, the stiffness can be designed in a simple manner.
  • two profile struts can be arranged within the recess of the frame, which run in the longitudinal direction of the vehicle and which adjoin a partial region of the recess which is closed with a structural component.
  • two tabs can protrude mirror-symmetrically upwards from the profile struts, resulting in a W-shaped cross section of the profile strut and the tabs. This cross-section brings about an optimal deformation behavior, especially in the close vicinity.
  • the tabs can also be arranged asymmetrically. The arrangement of the tabs on the inner profile is selected depending on the desired rigidity of the hood.
  • Fig. 1 is a plan view of an inner profile of a hood
  • Fig. 2 shows a cross section along line II-II.
  • Figure 1 shows an inner profile 1 of a hood, not shown.
  • the inner profile 1 comprises a frame 2, which forms a recess 3.
  • two profile struts 4 and 5 are arranged in the vehicle longitudinal direction.
  • the profile struts 4 and 5 are connected to a structural component 6, which closes a portion of the recess 3.
  • three openings 7, 8 and 9 are made in the inner profile 1, which are separated from one another by the profile struts 4 and 5.
  • the profile strut 4 is designed as a channel profile 12 with two legs 13 and 14.
  • a tab 15 or 16 is connected to each leg 13 or 14.
  • the tab 15 or 16 has a flange 17 or 18 at its free end.
  • the top of the flange 17 or 18 runs essentially parallel to the outer paneling 19 of the hood.
  • An adhesive layer 20 is applied between the upper side of the flange 17 or 18 and the lower side of the outer paneling 19, which connects the outer paneling 19 to the inner profile 1.
  • the forces are conducted into the outer paneling 19. Due to the punctiform or lini-shaped support of the outer paneling 19, the latter can yellow and thereby forwards the forces over the flanges 17 or 18 into the tabs 15 and 16 and thus into the inner profile 1.
  • the stiffness of the bonnet can be optimally designed.
  • the energy absorption of the bonnet can be positively influenced through a targeted selection of the adhesive stiffness and / or strength and the size of the adhesive surface. The shortening of the adhesive surface can be used to save adhesive.

Abstract

The invention relates to a large bodywork part, in particular an engine bonnet or a front lid, which is configured to damp an impact in the event of a head colliding with said part. To this end, the bodywork part comprises a reinforcing internal section (1) and an external panel (19), which are interconnected by means of connection elements. The aim of the invention is to achieve optimal energy absorption at low cost. To achieve this, the connection elements (15, 16) are configured in the form of tongues, which project from the internal section (1) and lie at a distance from one another.

Description

Großflächiges Karosserieteil Large body part
Die Erfindung betrifft ein großflächiges Karosserieteil, insbesondere eine Motorhaube oder eine Fronthaube, gemäß demThe invention relates to a large-area body part, in particular a hood or a front hood, according to the
Oberbegriff des Patentanspruchs 1.Preamble of claim 1.
Um die Schwere von Verletzungen, insbesondere Kopfverletzungen, bei Fußgängern oder anderen Aufprallbeteiligten zu reduzieren, sind Motorhauben beziehungsweise Fronthauben bekannt geworden, die in bestimmten Bereichen besonders aufpralldämpfend ausgelegt sind. Dazu sind die Motorhauben so gestaltet, dass die Aufprallenergie, die beim Aufprall aufgenommen werden muss, durch Deformation der Motorhaube abgebaut werden kann. Die Intrusionstiefe der Motorhaube darf dabei ein bestimmtes Maß nicht übersteigen, um Kontakt mit unterhalb der Motorhaube angeordneten Antriebsaggregaten zu vermeiden.In order to reduce the severity of injuries, in particular head injuries, to pedestrians or other parties involved in the impact, bonnets or bonnets have become known which are designed to be particularly impact-absorbing in certain areas. For this purpose, the bonnets are designed in such a way that the impact energy that must be absorbed in the event of an impact can be reduced by deformation of the bonnet. The intrusion depth of the bonnet must not exceed a certain level in order to avoid contact with drive units located below the bonnet.
Die DE 101 09 663 AI zeigt eine aufpralldämpfend ausgelegte Motorhaube, die ein versteifendes Innenprofil aufweist und mit einer Außenbeplankung versehen ist . Die Außenbeplankung steht mit dem Innenprofil über Anschlusselemente in Verbindung. Die Anschlusselemente in der DE 101 09 663 AI sind als Spriegel ausgeführt, die mit der Beplankung durch Kleberschichten gefügt sind. Die Kleberschichten verlaufen um laufend auf den Spriegeln, so dass in diesen Bereichen die Motorhaube besonders versteift ist . Um die Motorhaube über ihreDE 101 09 663 AI shows an impact-absorbing hood, which has a stiffening inner profile and is provided with an outer paneling. The outer cladding is connected to the inner profile via connection elements. The connection elements in DE 101 09 663 AI are designed as a bow, which are joined to the planking by adhesive layers. The adhesive layers run around constantly on the bars, so that the bonnet is particularly stiffened in these areas. To the hood over her
Erstreckung mit unterschiedlichen Steifigkeiten in verschiedenen Bereichen auszubilden, weisen die Spriegel in ihren Seitenwänden entweder Langlöcher oder Sicken auf.To form extension with different stiffness in different areas, the brackets have either elongated holes or beads in their side walls.
Um die Sicken beziehungsweise Langlöcher zu fertigen, ist ein erhöhter Fertigungsaufwand notwendig. Es besteht daher die Aufgabe, ein großflächiges Karosserieteil zu schaffen, das bei Einhaltung der vorgesehenen Grenzwerte für die Kopfbelastung beim Kopfaufprall kostengünstig zu fertigen ist .In order to manufacture the beads or elongated holes, an increased manufacturing effort is necessary. There is therefore the task of creating a large body part that can be manufactured inexpensively if the intended limit values for the head load are met in the event of a head impact.
Die Erfindung löst diese Aufgabe, indem die Anschlusselemente, die die Außenbeplankung mit dem Innenprofil verbinden, als vom Innenprofil abstehende Laschen ausgebildet sind, die voneinander beabstandet angeordnet sind. Durch die Anbindung der Beplankung über Laschen an das Innenprofil sind nur noch einige wenige Kleberschichten notwendig. Die Beplankung liegt demnach nur noch an wenigen Auflagepunkten an dem Innenprofil an, so dass ein günstiges Deformationsverhalten beim Kopfaufprall erreicht wird. Gleichzeitig können so die Anforderungen, hinsichtlich der Torsionssteifigkeit und der Beulsteifigkeit der Motorhaube eingehalten werden. Die Laschen sind so ausgebildet, dass sie die Beplankung abstützen. Bei einem Aufprall werden demnach die Kräfte über die Laschen in das Innenprofil weitergeleitet, so dass durch Variation der Größe der Laschen als auch der Form der Laschen in unterschiedlichen Bereichen der Motorhaube verschiedene Steifigkeitswerte umgesetzt werden können. Zudem übernimmt die Beplankung zusätzliche Deformationsarbeit. Gleichzeitig ist die Fertigung vereinfacht, wenn Innenprofil und Laschen als Tiefziehteil gefertigt werden .The invention solves this problem in that the connection elements which connect the outer cladding to the inner profile are designed as tabs which protrude from the inner profile and are arranged at a distance from one another. By connecting the planking to the inner profile via tabs, only a few adhesive layers are required. The cladding is therefore only at a few support points on the inner profile, so that a favorable deformation behavior is achieved in the event of a head impact. At the same time, the requirements regarding torsional rigidity and buckling rigidity of the bonnet can be met. The tabs are designed to support the planking. In the event of an impact, the forces are therefore transmitted via the straps into the inner profile, so that different stiffness values are implemented in different areas of the bonnet by varying the size of the straps and the shape of the straps can. The planking also takes on additional deformation work. At the same time, production is simplified if the inner profile and tabs are manufactured as deep-drawn parts.
Für eine haltbare Befestigung der Laschen an der Außenbeplankung weist jede Lasche einen Flansch auf, der eine Kleberschicht aufnimmt und an dem die Beplankung punktuell aufliegen kann. Durch Variation der Flanschbemessungen kann ebenfalls eine Anpassung der Steifigkeit erfolgen.For a durable attachment of the tabs to the outer paneling, each tab has a flange that receives an adhesive layer and on which the paneling can rest at points. The stiffness can also be adjusted by varying the flange dimensions.
Vorteilhafterweise können die Laschen und das Innenprofil einteilig ausgebildet sein, um Fertigungskosten zu sparen. In einer bevorzugten Ausfühxungsform umfasst das Innenprofil einen Rahmen, der in Überdeckung mit einem Randbereich der Außenbeplankung verläuft und der zumindest eine Aussparung bildet. In diesen Randbereichen sind die Außenbeplankung und der Rahmen miteinander verbunden.The tabs and the inner profile can advantageously be formed in one piece in order to save manufacturing costs. In a preferred embodiment, the inner profile comprises a frame which overlaps an edge area of the outer paneling and which forms at least one recess. The outer planking and the frame are connected to one another in these edge regions.
Innerhalb der durch den Rahmen gebildeten Aussparung können fachwerkartig zueinander angeordnete Profilstreben verlaufen, wobei die Laschen von den Profilstreben abstehen. Das hat den Vorteil, dass in Abhängigkeit des jeweiligen Auf- prallbereicb.es, zum Beispiel Kinderkopfaufschlagbereich o- der Erwachsenenaufprallbereich, in einfacher Weise die Steifigkeit gestaltet werden kann.Profile struts arranged in the manner of a truss can run within the recess formed by the frame, the tabs projecting from the profile struts. This has the advantage that, depending on the respective impact area, for example the child's head impact area or the adult impact area, the stiffness can be designed in a simple manner.
In einer Ausführungsform können zwei Profilstreben innerhalb der Aussparung des Rah-rnens angeordnet sein, die in Fahrzeuglängsrichtung verlaufen und die sich an einen Teilbereich der Aussparung anschließen, der mit einem Strukturbauteil geschlossen ist. Gemäß Anspruch 8 können in einer weiteren Ausführungsform zwei Laschen spiegelsymmetrisch von den Profilstreben schräg nach oben abstehen, wodurch sich ein W-förmiger Querschnitt der Profilstrebe und der Laschen ergibt. Dieser Querschnitt bewirkt besonders in den angrenzenden Nahbereichen ein optimales Deformationsverhalten. Wahlweise können die Laschen auch asymmetrisch angeordnet sein. Die Anordnung der Laschen an dem Innenprofil wird in Abhängigkeit der gewünschten Steifigkeit der Motorhaube gewählt.In one embodiment, two profile struts can be arranged within the recess of the frame, which run in the longitudinal direction of the vehicle and which adjoin a partial region of the recess which is closed with a structural component. According to claim 8, in a further embodiment, two tabs can protrude mirror-symmetrically upwards from the profile struts, resulting in a W-shaped cross section of the profile strut and the tabs. This cross-section brings about an optimal deformation behavior, especially in the close vicinity. Optionally, the tabs can also be arranged asymmetrically. The arrangement of the tabs on the inner profile is selected depending on the desired rigidity of the hood.
Ein Ausführungsbeispiel ist in den Figuren 1 und 2 dargestellt.An embodiment is shown in Figures 1 and 2.
Dabei zeigen:Show:
Fig. 1 eine Draufsicht auf ein Innenprofil einer Motorhaube sowieFig. 1 is a plan view of an inner profile of a hood and
Fig. 2 einen Querschnitt gemäß Linie II-II.Fig. 2 shows a cross section along line II-II.
Figur 1 zeigt ein Innenprofil 1 einer nicht näher dargestellten Motorhaube. Das Innenprofil 1 umfasst einen Rahmen 2, der eine Aussparung 3 bildet. Innerhalb der Aussparung 3 sind zwei Profilstreben 4 und 5 in Fahrzeuglängsrichtung angeordnet. Die Profil streben 4 und 5 sind an ein Strukturbauteil 6 angeschlossen, das einen Teilbereich der Aussparung 3 verschließt. Somit sind in dem Innenprofil 1 drei Öffnungen 7, 8 und 9 eingebracht, die durch die Profilstreben 4 und 5 voneinander getrennt sind. In dem der Windschutzscheibe zugewandten Randbereich 10 des Rahmens 2 sind weitere Materialausspaxungen 11 eingebracht. Wie insbesondere aus Figur 2 hervorgeht, ist die Profilstrebe 4 als Rinnenprofil 12 mit zwei Schenkeln 13 und 14 ausgebildet. An jeden Schenkel 13 beziehungsweise 14 schließt sich eine Lasche 15 beziehungsweise 16 an. Die Lasche 15 beziehungsweise 16 weist an ihrem freien Ende einen Flansch 17 beziehungsweise 18 auf. Die Oberseite des Flansches 17 beziehungsweise 18 verläuft im wesentlichen parallel zur Außenbeplankung 19 der Motorhaube. Zwischen der O- berseite des Flansches 17 beziehungsweise 18 und der Unterseite der Außenbeplankung 19 ist eine Kleberschicht 20 aufgebracht, die die Außenbeplankung 19 mit dem Innenprofil 1 verbindet .Figure 1 shows an inner profile 1 of a hood, not shown. The inner profile 1 comprises a frame 2, which forms a recess 3. Within the recess 3, two profile struts 4 and 5 are arranged in the vehicle longitudinal direction. The profile struts 4 and 5 are connected to a structural component 6, which closes a portion of the recess 3. Thus, three openings 7, 8 and 9 are made in the inner profile 1, which are separated from one another by the profile struts 4 and 5. In the edge area 10 of the frame 2 facing the windshield, further material openings 11 are introduced. As can be seen in particular from Figure 2, the profile strut 4 is designed as a channel profile 12 with two legs 13 and 14. A tab 15 or 16 is connected to each leg 13 or 14. The tab 15 or 16 has a flange 17 or 18 at its free end. The top of the flange 17 or 18 runs essentially parallel to the outer paneling 19 of the hood. An adhesive layer 20 is applied between the upper side of the flange 17 or 18 and the lower side of the outer paneling 19, which connects the outer paneling 19 to the inner profile 1.
Bei einem Aufprall auf die Motorhaube gemäß Pfeil F werden die Kräfte in die Außenbeplankung 19 geleitet . Durch die punktuelle bzw. lini nförmige Auflage der Außenbeplankung 19 kann diese nachgelben und leitet dadurch die Kräfte über die Flansche 17 bezi hungsweise 18 in die Laschen 15 und 16 und damit in das Innenprofil 1 weiter. In Abhängigkeit der Anzahl der Laschen sowie der Größe der Laschen kann somit eine optimale Auslegung der Steifigkeit der Motorhaube erfolgen. Gleichermaßen kann durch gezielte Auswahl der Klebstoffsteifigkeit und/oder -festigkeit sowie die Größe der Klebefläche die Energieaufnahme der Motorhaube positiv be- einflusst werden. Die Verkürzung der Klebefläche kann zur Einsparung von Klebstoff genutzt werden. In the event of an impact on the bonnet according to arrow F, the forces are conducted into the outer paneling 19. Due to the punctiform or lini-shaped support of the outer paneling 19, the latter can yellow and thereby forwards the forces over the flanges 17 or 18 into the tabs 15 and 16 and thus into the inner profile 1. Depending on the number of tabs and the size of the tabs, the stiffness of the bonnet can be optimally designed. Likewise, the energy absorption of the bonnet can be positively influenced through a targeted selection of the adhesive stiffness and / or strength and the size of the adhesive surface. The shortening of the adhesive surface can be used to save adhesive.

Claims

Patentansprüche claims
1. Großflächiges Karosserieteil, insbesondere eine Motorhaube oder eine Fronthaube, das für einen Kopfaufprall aufpralldämpfend ausgelegt ist, mit einem versteifenden Innenprofil und mit einer Außenbeplankung, die mit dem Innenprofil über Anschlusselemente verbunden ist, dadurch gekennzeichnet, dass die Anschlusselemente als vom Innenprofil (1) abstehende Laschen (15,16) ausgebildet sind, die voneinander beabstandet angeordnet sind.1. Large body part, in particular a bonnet or a front hood, which is designed to absorb a head impact, with a stiffening inner profile and with an outer paneling, which is connected to the inner profile via connecting elements, characterized in that the connecting elements as from the inner profile (1) protruding tabs (15,16) are formed, which are arranged spaced apart.
2. Großflächiges Karosserieteil nach Anspruch 1, dadurch gekennzeichnet, dass jede Lasche (15, 16) einen Flansch (17,18) aufweist, an dem die Beplankung (19) punktuell aufliegt.2. Large-area body part according to claim 1, characterized in that each tab (15, 16) has a flange (17, 18) on which the planking (19) rests at points.
3. Großflächiges Karosserieteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Laschen (15, 16) und das Innenprofil (1) einteilig ausgebildet sind.3. Large body part according to claim 1 or 2, characterized in that the tabs (15, 16) and the inner profile (1) are integrally formed.
4. Großflächiges Karosserieteil nach Anspruch 3, dadurch gekennzeichnet, dass das Innenprofil (1) einen Rahmen (2) umfasst, der in Überdeckung mit einem Randbereich der Außenbeplan kung (19) verläuft und der zumindest eine Aussparung (3) bildet.4. Large-area body part according to claim 3, characterized in that the inner profile (1) comprises a frame (2) which overlaps with an edge area of the outer covering kung (19) and which forms at least one recess (3).
5. Großflächiges Karosserieteil nach Anspruch 4, dadurch gekennzeichnet, dass innerhalb des Rahmens (2) in der Aussparung (3) fach erkartig zueinander angeordnete Profilstreben (4,5) verlaufen, wobei die Laschen (15,16) von den Profilstreben (4,5) abstehen.5. Large-area body part according to claim 4, characterized in that within the frame (2) in the recess (3) fold-like arranged profile struts (4,5), the tabs (15,16) of the profile struts (4, 5) stand out.
6. Großflächiges Karosserieteil nach Anspruch 5, dadurch gekennzeichnet, dass Profilstreben (4,5) innerhalb der Aussparung (3) angeordnet sind, die in Fahrzeuglängsrichtung verlaufen.6. Large body part according to claim 5, characterized in that profile struts (4,5) are arranged within the recess (3) which extend in the longitudinal direction of the vehicle.
7. Großflächiges Karosserieteil nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass ein Teilbereich der Aussparung (3) mit einem Strukturbauteil (6) geschlossen ist.7. Large-area body part according to claim 5 or 6, characterized in that a portion of the recess (3) is closed with a structural component (6).
8. Großflächiges Karosserieteil nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass zwei Laschen (15,16) spiegelsymmetrisch von den Profilstreben (4,5) schräg nach oben abstehen, wobei sich ein W-förmiger Querschnitt der Profilstrebe (4,5) und Laschen (15,16) ergibt.8. Large-area body part according to claim 5 or 6, characterized in that two tabs (15, 16) project mirror-symmetrically upwards from the profile struts (4,5), with a W-shaped cross section of the profile strut (4,5) and Tabs (15,16) results.
9. Großflächiges Karosserieteil nach Anspruch 1, dadurch gekennzeichnet, dass die Anzahl der Laschen (15,16) die Intrusionstiefe der Außenbeplankung (19) mit bestimmt. 9. Large-area body part according to claim 1, characterized in that the number of tabs (15, 16) also determines the intrusion depth of the outer paneling (19).
PCT/EP2004/013113 2003-12-20 2004-11-18 Large bodywork part WO2005063553A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006544244A JP2007515331A (en) 2003-12-20 2004-11-18 Large body parts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10360146.5 2003-12-20
DE10360146A DE10360146A1 (en) 2003-12-20 2003-12-20 Large-scale body part

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WO2005063553A1 true WO2005063553A1 (en) 2005-07-14

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047512A1 (en) * 2004-09-28 2006-03-30 Volkswagen Ag Planar bodywork part for a vehicle, especially a bonnet or hood, has a plastically deformable outer layer and reinforcing elements that have different loading strengths dependent on their location
DE102016015026A1 (en) 2016-12-16 2017-07-06 Daimler Ag Planking element for a vehicle. in particular for a passenger car

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JPH05278637A (en) * 1992-04-03 1993-10-26 Nissan Motor Co Ltd Hood mechanism for automobile
US6179364B1 (en) * 1998-05-13 2001-01-30 Honda Giken Kogyo Kabushiki Kaisha Bonnet for automobile
EP1104726A2 (en) * 1999-12-01 2001-06-06 Volkswagen Aktiengesellschaft Vehicle provided with a safety device for the protection of pedestrians
DE10062164A1 (en) * 2000-12-14 2002-06-20 Volkswagen Ag Automobile motor hood cover has a weaker zone at the level of a child's head than at the height of an adult head, to reduce the head injury criterion in the event of an impact collision with a pedestrian
DE10064345A1 (en) * 2000-12-21 2002-06-27 Volkswagen Ag Impact-damping engine bonnet has understructure connected to upper plate with its reinforcement structure stuck to plate only by adhesive points in central area leaving surrounding ring area free
DE10109663A1 (en) * 2000-12-14 2002-09-05 Volkswagen Ag Car bonnet has frame and reinforcing U-profiles inside this with crumple zone formed by lines of weakness near front of bonnet to reduce impact of collision with child and zone further back to reduce impact of collision with adult
DE10224425A1 (en) * 2002-06-01 2003-12-18 Thyssenkrupp Stahl Ag Flat metal component for motor vehicle bodies in monocoque construction, and especially front flap, has support of outer sheet provided only on individual points distributed over surface of inner sheet

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US5992923A (en) * 1998-05-27 1999-11-30 Henkel Corporation Reinforced beam assembly
JP2001233248A (en) * 2000-02-23 2001-08-28 Fuji Heavy Ind Ltd Front hood structure for vehicle
DE10200098A1 (en) * 2002-01-03 2003-07-17 Volkswagen Ag Automotive crash-energy absorbent hood, for absorbing energy from e.g. pedestrian, has center stiffening panel with detachable fixtures to inner sheet metal panel

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JPH05278637A (en) * 1992-04-03 1993-10-26 Nissan Motor Co Ltd Hood mechanism for automobile
US6179364B1 (en) * 1998-05-13 2001-01-30 Honda Giken Kogyo Kabushiki Kaisha Bonnet for automobile
EP1104726A2 (en) * 1999-12-01 2001-06-06 Volkswagen Aktiengesellschaft Vehicle provided with a safety device for the protection of pedestrians
DE10062164A1 (en) * 2000-12-14 2002-06-20 Volkswagen Ag Automobile motor hood cover has a weaker zone at the level of a child's head than at the height of an adult head, to reduce the head injury criterion in the event of an impact collision with a pedestrian
DE10109663A1 (en) * 2000-12-14 2002-09-05 Volkswagen Ag Car bonnet has frame and reinforcing U-profiles inside this with crumple zone formed by lines of weakness near front of bonnet to reduce impact of collision with child and zone further back to reduce impact of collision with adult
DE10064345A1 (en) * 2000-12-21 2002-06-27 Volkswagen Ag Impact-damping engine bonnet has understructure connected to upper plate with its reinforcement structure stuck to plate only by adhesive points in central area leaving surrounding ring area free
DE10224425A1 (en) * 2002-06-01 2003-12-18 Thyssenkrupp Stahl Ag Flat metal component for motor vehicle bodies in monocoque construction, and especially front flap, has support of outer sheet provided only on individual points distributed over surface of inner sheet

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PATENT ABSTRACTS OF JAPAN vol. 018, no. 055 (M - 1550) 28 January 1994 (1994-01-28) *

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DE10360146A1 (en) 2005-07-21

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