DE102004047512A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- DE102004047512A1 DE102004047512A1 DE200410047512 DE102004047512A DE102004047512A1 DE 102004047512 A1 DE102004047512 A1 DE 102004047512A1 DE 200410047512 DE200410047512 DE 200410047512 DE 102004047512 A DE102004047512 A DE 102004047512A DE 102004047512 A1 DE102004047512 A1 DE 102004047512A1
- Authority
- DE
- Germany
- Prior art keywords
- reinforcement
- hood
- vehicle
- body part
- bonnet
- 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- Withdrawn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
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
Abstract
Description
Die Erfindung betrifft ein flächiges Karosserieteil gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to a planar Body part according to the preamble of claim 1
Betrachtet
man den bevorzugten Einsatz bei der Erfindung, nämlich bei der einen Bestandteil
des Vorderwagens bildenden Motorhaube eines Kraftfahrzeugs, so sieht
die moderne Entwicklung in zunehmendem Maße die Berücksichtigung der Verhältnisse
beim Kopfaufprall eines Fußgängers vor.
Die Verringerung der Verletzungsgefahren bei einem derartigen Kopfaufprall
wird konstruktiv dadurch verkompliziert, dass der Kopfaufprall mit
unterschiedlicher Intensität
und an unterschiedlichen Stellen der Haube je nach dem erfolgt,
ob es sich bei dem Fußgänger um
ein Kind oder einen Erwachsenen handelt, wobei für die Konstruktion diese Werte
Normen beziehungsweise normenartigen Zusammenstellungen (DIN 33402;
Report des EEVC, Dezember 1998; Richtlinie 2003/102/EG des Europäischen Parlaments
und des Rates) entnommen werden. In der überwiegenden Mehrzahl der Fälle sind
die Haubenkonstruktionen so getroffen, dass beim Kopfaufprall gefährliche
Verzögerungsspitzen
durch entsprechend „weiche" Gestaltung der Haube
vermieden werden. Das bedeutet, dass durch entsprechende konstruktive
Gestaltung der Haube ein möglichst
großer
Deformationsweg an der Stelle des Kopfaufpralls zur Verfügung gestellt
wird, wozu in aller Regel die Haube Dämpfungsschichten aufweist (
Zum
Stand der Technik gehört
auch eine Haubenkonstruktion mit einer Softnose, sodass die Haube örtlich unterschiedliche
Festigkeiten beziehungsweise Nachgiebigkeiten aufweist. Eine Sandwichkonstruktion
mit diesen Eigenschaften zwecks Optimierung für verschiedene Fußgängergrößen offenbart
die
Während diese
Konstruktionen, wie bereits bemerkt, hohe Verzögerungsspitzen des Kopfes beim
Aufprall durch Sicherstellen von Deformationswegen, also einer allmählichen
Abbremsung des Kopfes, zum Ziel haben, sieht die Motorhaube nach der
In der Erkenntnis, dass diese Zusammenhänge die Möglichkeit geben, ein flächiges Karosserieteil, insbesondere eine Motorhaube, zu schaffen, das beziehungsweise die trotz eines relativ kleinen Deformationswegs „fußgängerfreundlich" ist, betrifft die Erfindung ein gattungsgemäßes Karosserieteil und behandelt die Aufgabe, dieses an die unterschiedlichen Verhältnisse beim Kopfaufprall von großen (Erwachsenen) und kleinen (Kindern) Personen anzupassen. Die erfindungsgemäße Lösung dieser Aufgabe besteht in den kennzeichnenden Merkmalen des Hauptanspruchs, vorteilhafte Ausbildungen der Erfindung beschreiben die Unteransprüche.In the realization that these relationships give the possibility of a sheet-like body part, In particular, a hood, to create, or the despite a relatively small deformation path is "pedestrian friendly", concerns the Invention, a generic body part and treats the task, this to the different circumstances at the head impact of large (Adults) and small (children) persons. The inventive solution to this problem consists in the characterizing features of the main claim, advantageous Embodiments of the invention describe the dependent claims.
Anspruch 6 gibt eine vorteilhafte konstruktive Ausbildung eines derartigen Karosserieteils an, die jedoch auch bei Verzicht auf die Anpassung an die unterschiedlichen Verhältnisse bei großen und kleinen Fußgängern einsetzbar ist.claim 6 gives an advantageous structural design of such Body part on, but also waiving the adjustment to the different circumstances at big and small pedestrians can be used is.
Ein
Ausführungsbeispiel
der Erfindung wird im Folgenden anhand der Zeichnung erläutert, deren Figuren
eine Motorhaube von unten her betrachtet, teils vor der endgültigen Montage
(
Betrachtet
man zunächst
Erfindungsgemäß wird nun
von unten her an der Anordnung
Weiterhin
ist aus den
Da
zum Aufbau des erfindungsgemäßen flächigen Karosserieteils
vom Prinzip her nur zwei Hauptbauteile, nämlich Deckschicht
Die
erfindungsgemäße und in
den Figuren dargestellte Motorhaube arbeitet beim Kopfaufprall eines
Fußgängers also
so, dass zunächst
im speziellen Aufprallbereich die Verstärkung
Für die Verstärkung hat sich die Verwendung von unverstärkten oder kurzfaserverstärkten Kunststoffen als zweckmäßig erwiesen, die mittels Spritzgießen auf die Unterseite der Deckschicht aufgetragen werden.For the reinforcement has itself the use of unreinforced or short fiber reinforced Plastics proved to be useful, the by injection molding be applied to the underside of the topcoat.
Wie bereits bemerkt, kann die Verstärkung nur örtlich auf der Deckschicht vorgesehen sein; es ist jedoch auch möglich, die Verstärkung ganzflächig aufzutragen.As Already noticed, the gain can only be localized be provided the cover layer; However, it is also possible that reinforcement Apply over the entire surface.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410047512 DE102004047512A1 (en) | 2004-09-28 | 2004-09-28 | 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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410047512 DE102004047512A1 (en) | 2004-09-28 | 2004-09-28 | 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 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004047512A1 true DE102004047512A1 (en) | 2006-03-30 |
Family
ID=36011679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410047512 Withdrawn DE102004047512A1 (en) | 2004-09-28 | 2004-09-28 | 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 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004047512A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008031012A1 (en) | 2008-06-30 | 2009-12-31 | GM Global Technology Operations, Inc., Detroit | Structural component for bonnet chassis structure of bonnet of e.g. motor vehicle, has function metal sheet and connection metal sheet, which are connected together by plastic structure, where metal sheet exhibits reinforcement element |
RU2527586C1 (en) * | 2010-12-03 | 2014-09-10 | Ниссан Мотор Ко., Лтд. | Hood inner panel |
DE102019204065A1 (en) * | 2019-03-25 | 2020-10-01 | Volkswagen Aktiengesellschaft | Locking device for a flap element, locking arrangement and motor vehicle |
US11286005B2 (en) | 2019-09-03 | 2022-03-29 | Honda Motor Co., Ltd. | Hood frame reinforcement for deflection mitigation |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19846645A1 (en) * | 1998-10-09 | 2000-04-13 | Volkswagen Ag | Vehicle bonnet arrangement |
DE10059795A1 (en) * | 2000-12-01 | 2002-06-13 | Volkswagen Ag | Collision-damping engine bonnet for road vehicle comprises upper plate to which under-structure is connected, together with frame within which is reinforcement structure |
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 |
DE10062155A1 (en) * | 2000-12-14 | 2002-06-20 | Volkswagen Ag | Automobile motor hood cover has a stiffening structure, bonded to the frame and/or bow by adhesive layers as nominal fracture points, to dampen impact forces on a collision and reduce the head injury criterion for pedestrians |
DE10063586A1 (en) * | 2000-05-08 | 2002-08-29 | Volkswagen Ag | Energy-absorbent body part for motor vehicles has internal chambers formed by honeycomb profiles, containing airbags and connected to gas generator |
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 |
DE10117214A1 (en) * | 2001-04-06 | 2002-10-17 | Opel Adam Ag | Motor vehicle engine bonnet with injury-reducing facilities during collision with pedestrians has synthetic foam coating with front section of lower rigidity, rear section of higher rigidity, to simulate impact of child's and adult's head |
DE10123479A1 (en) * | 2001-05-15 | 2002-11-21 | Volkswagen Ag | Impact damping front hood for a vehicle comprises a deformation structure in the form of deformation cups which are attached to the inner sheet of the hood |
EP1357018A1 (en) * | 2000-12-13 | 2003-10-29 | Kabushiki Kaisha Kobe Seiko Sho | Panel structure for car body hood |
DE10360146A1 (en) * | 2003-12-20 | 2005-07-21 | Daimlerchrysler Ag | Large-scale body part |
-
2004
- 2004-09-28 DE DE200410047512 patent/DE102004047512A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19846645A1 (en) * | 1998-10-09 | 2000-04-13 | Volkswagen Ag | Vehicle bonnet arrangement |
DE10063586A1 (en) * | 2000-05-08 | 2002-08-29 | Volkswagen Ag | Energy-absorbent body part for motor vehicles has internal chambers formed by honeycomb profiles, containing airbags and connected to gas generator |
DE10059795A1 (en) * | 2000-12-01 | 2002-06-13 | Volkswagen Ag | Collision-damping engine bonnet for road vehicle comprises upper plate to which under-structure is connected, together with frame within which is reinforcement structure |
EP1357018A1 (en) * | 2000-12-13 | 2003-10-29 | Kabushiki Kaisha Kobe Seiko Sho | Panel structure for car body hood |
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 |
DE10062155A1 (en) * | 2000-12-14 | 2002-06-20 | Volkswagen Ag | Automobile motor hood cover has a stiffening structure, bonded to the frame and/or bow by adhesive layers as nominal fracture points, to dampen impact forces on a collision and reduce the head injury criterion for pedestrians |
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 |
DE10117214A1 (en) * | 2001-04-06 | 2002-10-17 | Opel Adam Ag | Motor vehicle engine bonnet with injury-reducing facilities during collision with pedestrians has synthetic foam coating with front section of lower rigidity, rear section of higher rigidity, to simulate impact of child's and adult's head |
DE10123479A1 (en) * | 2001-05-15 | 2002-11-21 | Volkswagen Ag | Impact damping front hood for a vehicle comprises a deformation structure in the form of deformation cups which are attached to the inner sheet of the hood |
DE10360146A1 (en) * | 2003-12-20 | 2005-07-21 | Daimlerchrysler Ag | Large-scale body part |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008031012A1 (en) | 2008-06-30 | 2009-12-31 | GM Global Technology Operations, Inc., Detroit | Structural component for bonnet chassis structure of bonnet of e.g. motor vehicle, has function metal sheet and connection metal sheet, which are connected together by plastic structure, where metal sheet exhibits reinforcement element |
RU2527586C1 (en) * | 2010-12-03 | 2014-09-10 | Ниссан Мотор Ко., Лтд. | Hood inner panel |
DE102019204065A1 (en) * | 2019-03-25 | 2020-10-01 | Volkswagen Aktiengesellschaft | Locking device for a flap element, locking arrangement and motor vehicle |
US11286005B2 (en) | 2019-09-03 | 2022-03-29 | Honda Motor Co., Ltd. | Hood frame reinforcement for deflection mitigation |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8120 | Willingness to grant licences paragraph 23 | ||
R012 | Request for examination validly filed |
Effective date: 20110423 |
|
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |