DE29924443U1 - Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elements - Google Patents
Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elementsInfo
- Publication number
- DE29924443U1 DE29924443U1 DE29924443U DE29924443U DE29924443U1 DE 29924443 U1 DE29924443 U1 DE 29924443U1 DE 29924443 U DE29924443 U DE 29924443U DE 29924443 U DE29924443 U DE 29924443U DE 29924443 U1 DE29924443 U1 DE 29924443U1
- Authority
- DE
- Germany
- Prior art keywords
- bonnet
- arched
- hood
- adjoins
- support elements
- 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 - Lifetime
Links
- 230000000284 resting effect Effects 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 3
- 239000002984 plastic foam Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003677 Sheet moulding compound Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
Description
K 7379 Gbm2K 7379 Gbm2
Karosseriehaube, insbesondere Motorraumhaube eines KraftfahrzeugsBody hood, in particular engine compartment hood of a motor vehicle
Die Erfindung betrifft eine Karosseriehaube, insbesondere eine Motorraumhaube eines Kraftfahrzeugs nach dem Oberbegriff des Anspruchs 1.The invention relates to a body hood, in particular an engine compartment hood of a motor vehicle according to the preamble of claim 1.
Bei einer Fußgänger-Fahrzeug-Kollision, insbesondere bei einem Frontaufprall eines Fahrzeugs auf einen Fußgänger wird dieser an den Füßen meist ausgehebelt und schlägt mit dem Oberkörper und Kopf auf die Motorraumhaube. Herkömmliche Motorraumhauben weisen eine Haubenwand auf, die sich wenigstens an seitlichen Auflageteilen eines Fahrzeugaufbaus abstützt und die den Motorraum frei überspannt. Zum Schutz von Fußgängern bei einem Aufprall auf die Motorraumhaube ist bereits bekannt, diese in einem mittleren Haubenwandbereich als potentiellem Aufschlagbereich eines Fußgängers nachgiebig und verformbar auszubilden.In a pedestrian-vehicle collision, particularly in a head-on collision between a vehicle and a pedestrian, the pedestrian is usually lifted off the ground at the feet and hits the hood with his upper body and head. Conventional hoods have a hood wall that is supported at least by the side support parts of a vehicle body and that freely spans the engine compartment. To protect pedestrians in the event of an impact with the hood, it is already known to make the hood flexible and deformable in a central hood wall area as a potential impact area for a pedestrian.
Aufgabe der Erfindung ist es, eine gattungsgemäße Karosseriehaube, insbesondere eine Motorraumhaube so weiterzubilden, dass der Fußgängerschutz bei einer Fußgänger-Fahrzeug-Kollision verbessert wird.The object of the invention is to further develop a generic body hood, in particular an engine compartment hood, in such a way that pedestrian protection is improved in the event of a pedestrian-vehicle collision.
Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.This object is solved with the features of claim 1.
Nach Anspruch 1 ist die Haubenwand in Sandwichbauweise ausgebildet mit einem Oberteil als durchgehendem Blechteil, vorzugsweise aus Stahl, Aluminium, Materialien wie SMC (Sheet-Molding-Compound) und CFK (carbonfaserverstärkter Kunststoff), oder eine Sandwichbauweise mit verschiedenen Materialkombinationen einer damit verbundenen Zwischenlage aus energieabsorbierendem Material, vorzugsweise als Wabenstruktur, als AIu- oder Kunststoffschaum oder als strukturiertes Polypropylen oder Polyurethan, und einem damit verbundenen Unterteil als durchgehendem Blechteil, vorzugsweise aus Stahl oder Aluminium.According to claim 1, the hood wall is designed in a sandwich construction with an upper part as a continuous sheet metal part, preferably made of steel, aluminum, materials such as SMC (sheet molding compound) and CFRP (carbon fiber reinforced plastic), or a sandwich construction with various material combinations, an intermediate layer of energy-absorbing material connected thereto, preferably as a honeycomb structure, as aluminum or plastic foam or as structured polypropylene or polyurethane, and a lower part connected thereto as a continuous sheet metal part, preferably made of steel or aluminum.
Erfindungsgemäß wird somit eine Sandwichbauweise vorgeschlagen mit einem Oberteil als durchgehendem Blechteil vorzugsweise aus Stahl oder Aluminium und einem entsprechenden Unterteil als durchgehendem Blechteil. Dazwischen liegt eine flächig mit dem Oberteil und dem Unterteil verbundene Zwischenlage aus energieabsorbierendemAccording to the invention, a sandwich construction is proposed with an upper part as a continuous sheet metal part, preferably made of steel or aluminum, and a corresponding lower part as a continuous sheet metal part. In between there is an intermediate layer made of energy-absorbing material, which is connected flatly to the upper part and the lower part.
K7379Gbm2 .··.·": ."K7379Gbm2 .··.·": ."
-2--2-
Material. Dieses Material weist vorzugsweise eine Wabenstruktur auf, die aus dünnen Blechen oder aus Kunststoff hergestellt ist oder es wird ein Schaummaterial verwendet.Material. This material preferably has a honeycomb structure made of thin sheets or plastic, or a foam material is used.
Ein wesentlicher Konstruktionsvorteil ist hier darin zu sehen, dass keine hohen lokalen Steifigkeiten vorliegen, die bei einem Fußgängeraufprall zu ungünstigen Kraftspitzen führen können. Zudem ist durch die Zwischenlage die Haubenelastizität reduziert. Die Energieabsorption erfolgt hier im wesentlichen in der Zwischenlage, wobei auch durch die verformenden Blechteile Energie absorbiert wird.A key design advantage here is that there are no high local stiffnesses that could lead to unfavorable force peaks in the event of a pedestrian impact. In addition, the elasticity of the hood is reduced by the intermediate layer. Energy absorption here essentially takes place in the intermediate layer, with energy also being absorbed by the deforming sheet metal parts.
Durch eine Lochung des Unterteils und der Zwischenlage ist als zusätzlicher, vorteilhafter Effekt eine Schall-Dämmwirkung erreichbar.By perforating the lower part and the intermediate layer, a sound insulation effect can be achieved as an additional, advantageous effect.
Anhand einer Zeichnung wird die Erfindung näher erläutert.
Es zeigen:The invention is explained in more detail using a drawing.
Show it:
Fig. 1 und 2 eine schematische Darstellung einer Motorhaube in einem unverformten und verformten Zustand.Fig. 1 and 2 show a schematic representation of a hood in an undeformed and deformed state.
In Fig. 1 ist eine Motorhaube 1 dargestellt, die eine Haubenwand 2 aufweist, die in Sandwichbauweise ausgebildet ist, mit einem Oberteil 9 als durchgehendem Blechteil, einer Zwischenlage 15 aus energieabsorbierendem Material und einem damit verbundenen Unterteil 10 ebenfalls als durchgehendem Blechteil.Fig. 1 shows a hood 1 which has a hood wall 2 which is designed in a sandwich construction, with an upper part 9 as a continuous sheet metal part, an intermediate layer 15 made of energy-absorbing material and a lower part 10 connected thereto, also as a continuous sheet metal part.
Die Blechteile 9, 10 bestehen vorzugsweise aus Stahl oder Aluminium. Die Zwischenlage 15 ist vorzugsweise als Wabenstruktur verschiedener Materialien, Aluschaum, Kunststoffschaum oder strukturiertes Polypropylen oder Polyurethan ausgebildet Auch bei einer solchen Sandwichbauweise ergeben sich vorteilhaft keine hohen lokalen Steifigkeiten, die Haubenelastizität wird reduziert und die Energieabsorption erfolgt im wesentlichen in der Zwischenlage 15, wie dies im Aufprallfall in Fig. 2 gezeigt ist.The sheet metal parts 9, 10 are preferably made of steel or aluminum. The intermediate layer 15 is preferably designed as a honeycomb structure of various materials, aluminum foam, plastic foam or structured polypropylene or polyurethane. Even with such a sandwich construction, there are advantageously no high local stiffnesses, the hood elasticity is reduced and the energy absorption takes place essentially in the intermediate layer 15, as is shown in the case of an impact in Fig. 2.
Lochungen des Unterteils 10 und evtl. der Zwischenlage 15 ergeben zudem eine vorteilhafte Schalldämmwirkung.Perforations in the lower part 10 and possibly the intermediate layer 15 also provide an advantageous sound insulation effect.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29924443U DE29924443U1 (en) | 1998-10-07 | 1999-09-03 | Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elements |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19846192A DE19846192A1 (en) | 1998-10-07 | 1998-10-07 | Body hood, in particular engine compartment hood of a motor vehicle |
| EP99116845A EP0992418B1 (en) | 1998-10-07 | 1999-09-03 | Bonnet , especially engine bonnet for a motor car |
| DE29924443U DE29924443U1 (en) | 1998-10-07 | 1999-09-03 | Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29924443U1 true DE29924443U1 (en) | 2003-03-27 |
Family
ID=26049360
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29924443U Expired - Lifetime DE29924443U1 (en) | 1998-10-07 | 1999-09-03 | Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elements |
| DE29924442U Expired - Lifetime DE29924442U1 (en) | 1998-10-07 | 1999-09-03 | Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elements |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29924442U Expired - Lifetime DE29924442U1 (en) | 1998-10-07 | 1999-09-03 | Bonnet, in particular, for covering motor of motor vehicle comprises central bonnet section which is only slightly arched for added flexibility, and adjoins arched side sections resting on support elements |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE29924443U1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008046910A1 (en) * | 2008-09-12 | 2010-03-18 | Volkswagen Ag | Flat external component, in particular front hood |
| DE102009059984A1 (en) | 2009-12-22 | 2011-06-30 | Volkswagen AG, 38440 | Front flap for a motor vehicle |
| DE102010019934A1 (en) | 2010-05-08 | 2011-11-10 | Volkswagen Ag | Body flap i.e. bonnet, for vehicle i.e. motor car, has absorbent foam dimensioned such that stiffener seam of inner shell is not filled or partly filled with foam during curing or binding of foam |
| DE102005012719B4 (en) * | 2005-03-19 | 2015-02-05 | Volkswagen Ag | Safety device for a vehicle, in particular for a motor vehicle |
| DE102008034133B4 (en) * | 2007-07-24 | 2016-06-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Vehicle hood with layered internal structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10314220C5 (en) * | 2003-03-28 | 2009-09-10 | Woco Industrietechnik Gmbh | Cover for at least one component in an engine compartment of a motor vehicle |
| FR3116038A1 (en) * | 2020-11-06 | 2022-05-13 | Psa Automobiles Sa | VEHICLE HOOD |
-
1999
- 1999-09-03 DE DE29924443U patent/DE29924443U1/en not_active Expired - Lifetime
- 1999-09-03 DE DE29924442U patent/DE29924442U1/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005012719B4 (en) * | 2005-03-19 | 2015-02-05 | Volkswagen Ag | Safety device for a vehicle, in particular for a motor vehicle |
| DE102008034133B4 (en) * | 2007-07-24 | 2016-06-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Vehicle hood with layered internal structure |
| DE102008046910A1 (en) * | 2008-09-12 | 2010-03-18 | Volkswagen Ag | Flat external component, in particular front hood |
| DE102008046910B4 (en) * | 2008-09-12 | 2020-08-20 | Volkswagen Ag | Front hood |
| DE102009059984A1 (en) | 2009-12-22 | 2011-06-30 | Volkswagen AG, 38440 | Front flap for a motor vehicle |
| WO2011085756A1 (en) | 2009-12-22 | 2011-07-21 | Volkswagen Aktiengesellschaft | Engine hood for a motor vehicle |
| DE102010019934A1 (en) | 2010-05-08 | 2011-11-10 | Volkswagen Ag | Body flap i.e. bonnet, for vehicle i.e. motor car, has absorbent foam dimensioned such that stiffener seam of inner shell is not filled or partly filled with foam during curing or binding of foam |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29924442U1 (en) | 2003-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20030430 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20030430 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20051011 |
|
| R158 | Lapse of ip right after 8 years |
Effective date: 20080401 |