DE102006007665A1 - Roof for motor vehicle has outer casing with inner support foam which is thickened as required - Google Patents

Roof for motor vehicle has outer casing with inner support foam which is thickened as required Download PDF

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Publication number
DE102006007665A1
DE102006007665A1 DE200610007665 DE102006007665A DE102006007665A1 DE 102006007665 A1 DE102006007665 A1 DE 102006007665A1 DE 200610007665 DE200610007665 DE 200610007665 DE 102006007665 A DE102006007665 A DE 102006007665A DE 102006007665 A1 DE102006007665 A1 DE 102006007665A1
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DE
Germany
Prior art keywords
motor vehicle
shell
vehicle according
structure component
inner 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Withdrawn
Application number
DE200610007665
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German (de)
Inventor
Arno Keller
Achim Dockweiler
Bertram Heydenreich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication date
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Priority to DE200610007665 priority Critical patent/DE102006007665A1/en
Publication of DE102006007665A1 publication Critical patent/DE102006007665A1/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/05—Inlet covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/004—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material the metal being over-moulded by the synthetic material, e.g. in a mould

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Superstructure Of Vehicle (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The motor vehicle has a roof with a support structure which be made exclusively of a casing which is formed in the visible outer bodywork, and through a connected inner structural component made of a metallic foam. The inner structural component is thickened as required. The casing can be of steel, aluminium or magnesium or a thermplastic or thermosetting material. The foam can be of aluminium or magnesium foam.

Description

Die Erfindung betrifft ein Kraftfahrzeug mit zumindest einem Deckel nach dem Oberbegriff des Patentanspruchs 1.The The invention relates to a motor vehicle with at least one cover according to the preamble of claim 1.

Die derzeit im Kraftfahrzeugbau verwendeten Deckel, wie beispielsweise Türen, Motorhauben oder Kofferraumklappen, bestehen überwiegend aus einer Innenschale und einer Außenschale. Die Innen- und Außenschale werden dabei üblicherweise gebildet aus umgeformten Stahl- oder Aluminiumblechen gebildet. Neuerdings kommen auch Innen- und Außenschalen aus Kunststoffen vermehrt zum Einsatz. Die beiden Schalen sind durch Bördeln, Kleben oder andere Fügetechniken miteinander verbunden und bilden so in Schalenbauweise eine steife Struktur. In hoch beanspruchten Bereichen, zum Beispiel im Anbindungsbereich eines Scharniers, einer Gasfeder oder eines Klappenschlosses, werden zusätzliche Verstärkungsbauteile an die Innen- und/oder Außenschale gefügt.The currently used in motor vehicle cover, such as doors, Hoods or bootlids, consist mainly of an inner shell and an outer shell. The inner and outer shell are usually there formed formed from formed steel or aluminum sheets. The interior and exterior shells are also made of plastics increasingly used. The two shells are by crimping, gluing or other joining techniques connected together and thus form a shell in shell construction Structure. In highly stressed areas, for example in the connection area a hinge, a gas spring or a flap lock additional reinforcement components to the inner and / or outer shell together.

Die Herstellung der Innen- und Außenschalen erfordert jedoch sehr aufwendige Werkzeuge, die in der Herstellung sehr teuer sind. Bei Änderungen der Geometrie des Deckels ist vielfach die Bearbeitung des gesamten Werkzeugsatzes erforderlich. Für einzelne Varianten ist meist ein eigener Werkzeugsatz für alle eingesetzten Einzelteile erforderlich. Dies schränkt die Flexibilität bei Änderungen und bei der Darstellung von Varianten ein, da Geometrieänderungen hohe Werkzeugkosten verursachen.The Production of the inner and outer shells However, it requires very elaborate tools that are in production are very expensive. In case of changes Geometry of the lid is often the machining of the whole Tool kit required. For individual Variants is usually a separate tool set for all individual parts used required. This restricts the flexibility in case of changes and in the representation of variants, since geometry changes cause high tooling costs.

Aus der DE 102 23 367 A1 ist es bekannt, eine Außenverkleidung eines Kraftfahrzeugs bzw. eines Karosserieelements zumindest teilweise aus Metallschaum auszubilden. Das Karosserieelement kann beispielsweise eine Motorhaube sein.From the DE 102 23 367 A1 It is known to form an outer lining of a motor vehicle or a body element at least partially made of metal foam. The body member may be, for example, a hood.

Aufgabe der Erfindung ist es, ein Kraftfahrzeug mit zumindest einem Deckel zu schaffen, der mit geringen Werkzeugkosten aus wenigen Einzelteilen herstellbar ist.task The invention is a motor vehicle with at least one cover to create, with low tooling costs from a few individual parts can be produced.

Diese Aufgabe wird mit einem Kraftfahrzeug mit zumindest einem Deckel mit den Merkmalen des Patentanspruchs 1 gelöst.These Task is with a motor vehicle with at least one lid solved with the features of claim 1.

Kerngedanke der Erfindung ist es, dass ein Deckel eines Kraftfahrzeugs nur mehr aus einer einzigen Schale besteht, die die sichtbare Außenhaut bildet. Diese einzige Schale ist verbunden mit einem Innenstrukturbauteil aus einem metallischen Schaum. Der metallische Schaum wird in der Regel geschlossenporig sein. Zur Herstellung wird meist ein Metallpulver mit einem Treibmittel vermischt. Nahe am Schmelzpunkt des Metalls gibt dieses ein Treibgas ab und schäumt so das Metall auf – ähnlich wie Hefe, die einen Teig Blasen werfen lässt. Das Innenstrukturbauteil aus dem metallischen Schaum wird mit der Außenhaut beispielsweise durch Bördeln oder Kleben gefügt.core idea The invention is that a cover of a motor vehicle only more consists of a single shell, which forms the visible outer skin. This single shell is connected to an inner structure component from a metallic foam. The metallic foam is in the Usually be closed pores. For the production is usually a metal powder mixed with a propellant. Close to the melting point of the metal This gives off a propellant and foams up the metal - much like Yeast that makes a dough throw bubbles. The inner structure component from the metallic foam is with the outer skin, for example by Beading or Gluing joined.

Der Deckel weist so aufgrund der Schale, die die sichtbare Außenhaut bildet, eine hochwertige Oberfläche auf, die der Güteklasse „Class A" entspricht. Dabei kann die Schale auch aus mehreren Teilen bestehen. Die gesamte Innenstruktur des Deckels wird nur durch das Innenstrukturbauteil gebildet. Alle erforderlichen Verstärkungen der hoch beanspruchten Bereiche sind in der Geometrie des Innenstrukturbauteils, zum Beispiel durch Aufdickungen, integriert. Auf der der Schale abgewandten Seite des Innenstrukturbauteils ist keine zusätzliche Schale mehr erforderlich. Bei Bedarf kann die Oberfläche des Innenstrukturbauteils in optisch sensiblen Bereichen durch Verkleidungen abgedeckt werden. Die tragende Struktur des Deckels wird aber ausschließlich gebildet durch das Innenstrukturbauteil und je nach Ausführung durch die Schale.Of the Lid so points due to the shell, which is the visible outer skin forms, a high-quality surface on, the class "Class A "corresponds The shell can also consist of several parts. The entire interior structure the lid is formed only by the inner structure component. All required reinforcements of the highly stressed areas are in the geometry of the inner structure component, for example, by thickening, integrated. On the shell opposite side of the inner structure component is no additional shell more required. If necessary, the surface of the inner structure component be covered in visually sensitive areas by panels. The but supporting structure of the lid is made exclusively through the inner structure component and, depending on the design, through the shell.

Die einzige Schale kann sowohl aus einem Stahl-, Aluminium- oder einem Magnesiumblech als auch aus einem thermoplastischen oder duroplastischen Kunststoff bestehen. Zur Herstellung des Deckels kann die Schale und das Innenstrukturbau teil jeweils separat hergestellt und anschließend miteinander gefügt werden. Alternativ kann aber auch die Schale in ein Schäumwerkzeug eingelegt werden und gegebenenfalls unter Zuhilfenahme eines Haftvermittlers direkt mit dem metallischen Schaum hinterspritzt werden. Das Innenstrukturbauteil wird also bereits bei der Herstellung mit der Schale verbunden. Bei einer Schale aus einer dünnen Folie ist es sogar denkbar, dass die dünne Folie in das Werkzeug eingelegt wird, und erst durch das Einspritzen des Schaums in Form gebracht wird.The single shell can be made of either a steel, aluminum or a Magnesium sheet as well as a thermoplastic or thermosetting Plastic exist. To make the lid, the shell and the inner structure part each made separately and then together together become. Alternatively, but also the shell in a foaming tool be inserted and optionally with the help of a bonding agent be back-injected directly with the metallic foam. The inner structure component So it is already connected to the shell during production. at a shell of a thin one Foil it is even conceivable that the thin foil inserted into the tool is, and only brought into shape by the injection of the foam becomes.

Gegenüber dem Stand der Technik ist der erfindungsgemäße Deckel mit geringen Werkzeugkosten aus wenigen Einzelteilen herstellbar. Es sind keine zusätzlichen Verstärkungsbauteile mehr erforderlich, da deren Funktionen in das Innenstrukturbauteil integriert sind. Somit sind auch keine teuren Werkzeuge mehr für Verstärkungsbauteile erforderlich. Geometrisch vielfältige Inserts, wie zum Beispiel Gewindebuchsen können direkt eingespritzt werden. Die Investitionskosten für Gußwerkzeuge sind wesentlich geringer als für die Umformwerkzeuge für vergleichbare Blechteile.Compared to the State of the art is the lid according to the invention with low tooling costs can be produced from a few individual parts. There are no additional ones reinforcing members more necessary because their functions integrated into the internal structure component are. Thus, no expensive tools for reinforcing components required. Geometrically diverse Inserts, such as threaded bushings, can be injected directly. The Investment costs for casting tools are much lower than for the forming tools for comparable Sheet metal parts.

Darüber hinaus bietet der erfindungsgemäße Deckel Potential zur Gewichtsreduzierung. Das Innenstrukturbauteil weist bei Einsatz von Aluminium- oder Magnesiumschäumen eine hohe Festigkeit bei einem geringen spezifischen Gewicht auf. Die Schale kann sehr dünn gehalten werden, wenn sie vollflächig am Innenstrukturbauteil anliegt. Dabei können auch die Schale und das Innenstrukturbauteil aus unterschiedlichen Materialen bestehen. So kann beispielsweise eine Schale aus Kunststoff und ein Innenstrukturbauteil aus einem Aluminiumschaum zum Einsatz kommen, die beispielsweise miteinander verklebt sind.In addition, the lid according to the invention offers potential for weight reduction. The internal structure component has a high strength with a low specific weight when using aluminum or magnesium foams. The shell can be kept very thin when it rests against the entire surface of the inner structure component. In this case, the shell and the inner structure component from under consist of different materials. Thus, for example, a shell made of plastic and an inner structural component of an aluminum foam can be used, which are glued together, for example.

Ein Deckel im Sinne der Erfindung kann beispielsweise eine Fahrzeugtür, eine Motorhaube, eine Heckklappe oder ein Tankdeckel sein.One Lid according to the invention may, for example, a vehicle door, a Bonnet, a tailgate or a fuel cap be.

Claims (8)

Kraftfahrzeug mit zumindest einem Deckel, dadurch gekennzeichnet, dass die tragende Struktur des Deckels ausschließlich gebildet wird durch eine Schale, die die sichtbare Außenhaut bildet, und durch ein damit verbundenes Innenstrukturbauteil aus einem metallischen Schaum.Motor vehicle with at least one lid, characterized in that the supporting structure of the lid is exclusively formed by a shell, which forms the visible outer skin, and by an associated inner structural member of a metallic foam. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass im Bereich hoher Beanspruchungen das Innenstrukturbauteil Aufdickungen aufweist.Motor vehicle according to claim 1, characterized in that that in the region of high stresses, the inner structure component thickening having. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schale aus einem Stahl-, Aluminium- oder Magnesiumblech oder aus einem thermoplastischen oder duroplastischen Kunststoff besteht.Motor vehicle according to one of the preceding claims, characterized characterized in that the shell of a steel, aluminum or Magnesium sheet or of a thermoplastic or thermosetting Plastic exists. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der metallische Schaum des Innenstrukturbauteils ein Aluminium- oder Magnesiumschaum ist.Motor vehicle according to one of the preceding claims, characterized in that the metallic foam of the inner structure component an aluminum or Magnesium foam is. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Innenstrukturbauteil mit der Schale durch Kleben oder Bördeln verbunden ist.Motor vehicle according to one of the preceding claims, characterized characterized in that the inner structure component with the shell through Gluing or beading connected is. Kraftfahrzeug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Innenstrukturbauteil auf die Schale aufgespritzt ist.Motor vehicle according to one of claims 1 to 4, characterized in that the inner structure component on the shell is sprayed on. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schale vollflächig am Innenstrukturbauteil anliegt.Motor vehicle according to one of the preceding claims, characterized characterized in that the shell over its entire surface on the inner structure component is applied. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Deckel eine Fahrzeugtür, eine Motorhaube, eine Heckklappe oder eine Tankklappe ist.Motor vehicle according to one of the preceding claims, characterized in that the cover is a vehicle door, a bonnet, a tailgate or a fuel filler flap.
DE200610007665 2006-02-18 2006-02-18 Roof for motor vehicle has outer casing with inner support foam which is thickened as required Withdrawn DE102006007665A1 (en)

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DE200610007665 DE102006007665A1 (en) 2006-02-18 2006-02-18 Roof for motor vehicle has outer casing with inner support foam which is thickened as required

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DE200610007665 DE102006007665A1 (en) 2006-02-18 2006-02-18 Roof for motor vehicle has outer casing with inner support foam which is thickened as required

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008027431A1 (en) * 2008-06-09 2009-12-10 GM Global Technology Operations, Inc., Detroit Motor vehicle, has passenger compartment with visible surfaces formed in sections by component e.g. loudspeaker grille made of metal foam, where component is arranged at outlet opening of venting nozzle and is back-illuminated
DE102011101727A1 (en) 2011-05-17 2012-01-05 Daimler Ag Flap e.g. bonnet, for motor vehicle, has exterior paneling part designed as metal sheet component and connected with foamed body and inner part, which is formed as surface-area that is smaller than exterior paneling part
DE102011118182A1 (en) * 2011-11-10 2013-05-16 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Flap arrangement for motor car such as passenger vehicle, has inner and outer skins which are connected with each other in overlapping manner, and a reinforcement element which is attached to the outer skin through a horizontal bond

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318540A1 (en) * 1993-06-04 1994-12-08 Bayerische Motoren Werke Ag Method and device for producing a composite component
DE19925840B4 (en) * 1999-06-01 2004-07-08 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Body part for motor vehicles and method for the production thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318540A1 (en) * 1993-06-04 1994-12-08 Bayerische Motoren Werke Ag Method and device for producing a composite component
DE19925840B4 (en) * 1999-06-01 2004-07-08 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Body part for motor vehicles and method for the production thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008027431A1 (en) * 2008-06-09 2009-12-10 GM Global Technology Operations, Inc., Detroit Motor vehicle, has passenger compartment with visible surfaces formed in sections by component e.g. loudspeaker grille made of metal foam, where component is arranged at outlet opening of venting nozzle and is back-illuminated
DE102011101727A1 (en) 2011-05-17 2012-01-05 Daimler Ag Flap e.g. bonnet, for motor vehicle, has exterior paneling part designed as metal sheet component and connected with foamed body and inner part, which is formed as surface-area that is smaller than exterior paneling part
DE102011118182A1 (en) * 2011-11-10 2013-05-16 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Flap arrangement for motor car such as passenger vehicle, has inner and outer skins which are connected with each other in overlapping manner, and a reinforcement element which is attached to the outer skin through a horizontal bond

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