DE10160442B4 - Automotive headliner - Google Patents
Automotive headliner Download PDFInfo
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- DE10160442B4 DE10160442B4 DE10160442A DE10160442A DE10160442B4 DE 10160442 B4 DE10160442 B4 DE 10160442B4 DE 10160442 A DE10160442 A DE 10160442A DE 10160442 A DE10160442 A DE 10160442A DE 10160442 B4 DE10160442 B4 DE 10160442B4
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- layer
- headliner
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- headliner according
- thermoplastic
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- 239000006260 foam Substances 0.000 claims abstract description 19
- 229920000098 polyolefin Polymers 0.000 claims abstract description 12
- 229920001169 thermoplastic Polymers 0.000 claims description 22
- 239000004416 thermosoftening plastic Substances 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 14
- -1 Polypropylene Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000002984 plastic foam Substances 0.000 claims description 4
- 240000000797 Hibiscus cannabinus Species 0.000 claims description 2
- 240000006240 Linum usitatissimum Species 0.000 claims description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000012783 reinforcing fiber Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002557 mineral fiber Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 244000198134 Agave sisalana Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0212—Roof or head liners
- B60R13/0225—Roof or head liners self supporting head liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Automobil-Dachhimmel bestehend aus einer oberen und einer unteren Polyolefin-Schicht, die an einer Vielzahl von Teilbereichen (3) so miteinander verschweißt sind, dass sich zwischen den Schichten nicht verschweißte, Luftpolster enthaltende Bereiche (4) befinden, an denen die obere Schicht aufgewölbt ist, dadurch gekennzeichnet, dass beide Schichten eine faserverstärkte Polyolefinlage (1, 1') und mit dieser haftend verbunden, eine geschlossenzellige Schaumfolie (2, 2') aus einem vernetzten Polyolefin enthalten, wobei die Schaumfolien miteinander verschweißt sind.Automotive headliner consisting of an upper and a lower polyolefin layer, which are welded together at a plurality of subregions (3), that between the layers not welded, containing air cushion Areas (4) where the top layer is arched, characterized in that both layers comprise a fiber-reinforced polyolefin layer (1, 1 ') and adhesively connected thereto, a closed-cell Foam sheet (2, 2 ') of a crosslinked polyolefin, wherein the foamed sheets are welded together.
Description
Die Erfindung betrifft einen Dachhimmel aus zwei miteinander verbundenen Schichten aus faserverstärkten Thermoplast-Lagen und Kunststoff-Schaumfolien, zwischen denen sich Bereiche mit Luftpolstern befinden.The The invention relates to a headliner of two interconnected Layers of fiber reinforced Thermoplastic layers and plastic foams, between which Areas with air cushions are located.
Kraftfahrzeug-Innenteile werden in zunehmendem Maße aus Kunststoffen hergestellt. Für Dachhimmel werden dabei vor allem Schaumstoffbahnen, insbesondere aus Polyurethan oder Polyolefinen verwendet, die an ihrer Unterseite mit einer Kunststoffolie abgedeckt sind. Die genannten Schaumstoffe können zwar schwache Stöße abfedern, bei einem starken Aufprall, z.B. bei einem Unfall oder beim Fahren über ein tiefes Schlagloch, werden sie aber so stark zusammengedrückt, daß der Kopf des Fahrgasts praktisch direkt an das harte Metallblech des Automobildachs anschlägt.Automotive interior parts are becoming increasingly made of plastics. For headliner In particular, foam webs, in particular of polyurethane, are used or polyolefins used on their underside with a plastic film are covered. Although the foams mentioned can absorb weak shocks, in a strong impact, e.g. in an accident or when driving over a deep pothole, but they are so strongly compressed that the head the passenger practically directly to the hard metal sheet of the automobile roof strikes.
Das
Die EP-O 657 281 A1 beschreibt ein Bauelement als Aufprallschutz und zur Schalldämmung im Automobilinnenraum, bestehend aus einer Kunststoff-Schaumschicht, z.B. aus Polyurethan, und einem damit kraftschlüssig verbundenen Tragkörper aus einem naturtaserverstärkten Thermoplasten.The EP-O 657 281 A1 describes a component as impact protection and for sound insulation in the automotive interior, consisting of a plastic foam layer, e.g. made of polyurethane, and a non-positively connected support body a natural fiber reinforced Thermoplastics.
In der DE-43 11 592 A1 sind Kraftfahrzeug-Innenverkleidungsteile beschrieben, die sich durch eine hohe Steifigkeit auszeichnen. Eine spezielle Ausführungsform besteht aus zwei flächig miteinander verbundenen Lagen aus naturfaserverstärkten thermoplastischen Kunststoffen, wobei eine Lage Hohlkammern aufweist. Die Verkleidungsteile werden hergestellt, indem man auf ein mit Vertiefungen versehenes Unterwerkzeug zunächst ein vorerhitztes, flächiges Vlies aus Thermoplastfasern und Naturfasern auflegt und dieses Vlies durch Verpressen mittels eines mit entsprechenden Erhebungen versehenen ersten Oberwerkzeuges formt und zu einer kompakten Lage konsolidiert. Dann wird das erste Oberwerkzeug entfernt, ein zweites vorerhitztes Vlies wird auf die erste Lage aufgelegt und mittels eines zweiten, nicht mit Erhebungen versehenen Oberwerkzeugs wieder durch Verpressen konsolidiert und an den erhabenen Stellen der ersten Lage mit dieser verbunden. Auf diese Weise bilden sich an den vertieften Stellen der unteren Lage Hohlkammern aus. Um ein Einfallen der Lagen zu verhindern, muß während der Herstellung des Verbundteils durch Düsennadeln Luft unter Druck in die Hohlkammern eingepreßt werden. Hierbei handelt es sich ersichtlich um ein recht kompliziertes Verfahren.In DE 43 11 592 A1 motor vehicle interior trim parts are described, which are characterized by a high rigidity. A special one embodiment consists of two areas interconnected layers of natural fiber reinforced thermoplastic Plastics, wherein a layer has hollow chambers. The trim parts are prepared by pointing to a well Lower tool first a preheated, areal Fleece made of thermoplastic fibers and natural fibers hangs up and this fleece by pressing by means of a provided with corresponding elevations first upper tool and consolidated to a compact position. Then the first upper tool is removed, a second preheated Fleece is placed on the first layer and by means of a second, not provided with elevations upper tool again by pressing consolidated and connected with the first location in the sublime places. In this way, the lower parts are formed at the recessed areas Location hollow chambers off. To prevent a collapse of the layers, must during the Production of the composite part by nozzle needles air under pressure pressed into the hollow chambers become. This is obviously quite complicated Method.
Der Erfindung lag nun die Aufgabe zugrunde, einen Automobil-Dachhimmel zu entwickeln, der nicht nur schwache Stöße abfedert, sondern zwar steif, aber doch so verformbar ist, daß er auch bei einem stärkeren Aufprall dem Fahrgast noch Schutz bietet. Ferner sollte der Dachhimmel schallschluckend sein, so daß er zur Lärmdämpfung geeignet ist. Der Dachhimmel sollte ferner einfach herstellbar sein. Diese Aufgaben sind bei dem erfindungsgemäßen Automobil- Dachhimmel gelöst.Of the Invention was now the object of an automobile headliner to develop, which not only cushions weak shocks, but stiff, but it is so deformable that he even with a stronger one Impact the passenger still offers protection. Furthermore, the headliner should to be sonorous, so that he is suitable for noise reduction. The headliner should also be easy to produce. These tasks are in the automotive Roof sky solved.
Der Dachhimmel besteht aus zwei Schichten, die beide eine faserverstärkte Thermoplastlage und, mit dieser haftend verbunden, eine geschlossenzellige Schaumfolie enthalten. Die Schaumfolien sind dabei einander gegenüberliegend angeordnet und miteinander verschweißt. Die Thermoplastlage kann alle üblichen faserbildenen Thermoplasten enthalten, vorzugsweise Polyolefine und insbesondere Polypropylen, weiterhin enthält sie nicht thermoplastische Fasern als Verstärkung. Geeignet sind bevorzugt solche aus Naturfasern, wie Flachs, Jute, Hanf, Sisal, Kenaf und Baumwolle, aber auch mineralische Fasern z.B. Glasfasern. Die Schaumfolie besteht aus einem vernetzten Polyolefin, vorzugsweise aus Polypropylen oder Polyethylen. Sie sollte möglichst geschlossenzellig sein, ihre Dichte liegt vorzugsweise zwischen 30 und 100 kg/m3. Die Dicke der Thermoplastlage beträgt vorzugsweise 2 bis 10 mm, die der Schaumfolie 1 bis 2 mm. Beide Schichten haben zusammen ein Flächengewicht von vorzugsweise 200 bis 2000, insbesondere von 400 bis 1500 g/m2.The headliner consists of two layers, both of which contain a fiber-reinforced thermoplastic layer and, adhering to it, a closed-cell foam film. The foam sheets are arranged opposite one another and welded together. The thermoplastic layer may contain all conventional fiber-forming thermoplastics, preferably polyolefins and in particular polypropylene, furthermore it does not contain thermoplastic fibers as reinforcement. Suitable are preferably those of natural fibers such as flax, jute, hemp, sisal, kenaf and cotton, but also mineral fibers such as glass fibers. The foam sheet consists of a crosslinked polyolefin, preferably polypropylene or polyethylene. It should be closed-celled as far as possible, its density is preferably between 30 and 100 kg / m 3 . The thickness of the thermoplastic layer is preferably 2 to 10 mm, that of the foam sheet 1 to 2 mm. Both layers together have a basis weight of preferably 200 to 2000, in particular from 400 to 1500 g / m 2 .
Erfindungswesentlich ist, daß die beiden Schichten nur an einer Vielzahl von Teilbereichen miteinander verschweißt sind, so daß sich zwischen den Schichten nicht verschweißte, Luftpolster enthaltende Bereiche befinden, an denen die obere Schicht aufgewölbt ist. Die verschweißten Bereiche können verschiedenartige Gestalt haben, sie können z.B. rund, oval oder rechteckig sein. Sie machen vorzugsweise 10 bis 80 % der Fläche des Dachhimmels aus, die Höhe der Aufwölbung kann 50 bis 300 %, bezogen auf die Dicke der oberen Schicht, betragen. Die ein Luftpolster enthaltende Aufwölbung ist bei einem starken Stoß nach innen verformbar und kann dadurch einen Aufprall abpuffern.essential to the invention is that the two layers only at a plurality of subregions with each other welded are, so that between the layers not welded, containing air cushion Areas are located where the top layer is arched. The welded Areas can be varied Have shape, they can e.g. be round, oval or rectangular. They prefer to do 10 up to 80% of the area of the headliner, the height the bulge may be 50 to 300%, based on the thickness of the upper layer. The bulge containing an air cushion is at a strong Push to deformable inside and can buffers an impact.
Auf die obere, dem Blechdach zugewandte Schicht des Dachhimmels kann ein Abdeckvlies, z.B. aus Polyesterfasern oder eine Aluminiumfolie aufgebracht sein; an der unteren, dem Fahrgastraum zugewandten Seite kann eine 1 bis 3 mm dicke Polsterschicht aus Kunststoffschaum, z.B. auf Basis von Polyurethan oder Polypropylen, sowie eine Dekorschicht, z.B. ein Vlies oder eine Folie, angebracht sein.On the upper, the sheet metal roof facing layer of the headliner, a cover fleece, for example, be applied from polyester fibers or an aluminum foil; On the lower, the passenger compartment side facing a 1 to 3 mm thick cushion layer of plastic foam, for example based on polyurethane or polypropylene, and a decorative layer, such as a nonwoven or a film attached be.
Bei der Herstellung des erfindungsgemäßen Dachhimmels werden zunächst die Ausgangsmaterialien für die beiden Schichten hergestellt. Dazu werden kontinuierlich Bahnen der Schaumfolie und eines Mischvlieses aus Thermoplastfasern und Naturfasern oder Mineralfasern zusammengeführt. Dabei werden die jeweiligen einander zugewandten Oberflächen der Bahnen auf Temperaturen oberhalb des Erweichungspunktes des Thermoplasten, z.B. durch Anblasen mit Heißluft, erwärmt; dann werden die beiden Bahnen, vorzugsweise mittels Walzen, miteinander verpreßt. Dadurch ergibt sich eine gute Verbindung von Vlies und Schaumfolie und es wird eine Verbundbahn erhalten, die noch flexibel ist.at the production of the headliner according to the invention are first the Starting materials for the two layers made. These are continuously webs the foam sheet and a mixed fleece of thermoplastic fibers and Natural fibers or mineral fibers combined. Here are the respective facing surfaces of the webs at temperatures above the softening point of the Thermoplastics, e.g. by blowing with hot air, heated; then the two Webs, preferably by means of rollers, pressed together. Thereby results in a good connection of fleece and foam sheet and it will get a composite rail that is still flexible.
Von dieser Verbundbahn werden passende Zuschnitte abgeschnitten. Ein über den Schmelzpunkt des Thermoplasten vorgewärmter Zuschnitt, der im fertigen Dachhimmel die Oberschicht bildet, wird dann, mit der Schaumfolienseite nach oben, in das mit noppenförmigen Erhebungen versehene Unterwerkzeug einer Presse eingelegt. Auf diesen Zuschnitt wird ein weiterer vorgewärmter Zuschnitt, der in dem fertigen Dachhimmel die Unterschicht bildet, mit der Schaumfolienseite nach unten aufgelegt. Gleichzeitig wird die Presse mit einem glatten Oberwerkzeug luftdicht abgeschlossen und durch seitlich angebrachte Düsen wird Luft zwischen die Zuschnitte eingeblasen. Durch die beiden geschlossenzelligen Schaumfolien kann die Luft nicht entweichen, so daß durch den sich aufbauenden Luftdruck der untere Zuschnitt auf das Unterwerkzeug gepreßt wird und sich dort um die Noppen herum dicht anlegt. Die Zuschnitte berühren sich nur an den Auflagestellen der erhöhten Noppen, dazwischen bildet sich ein zusammenhängender Hohlraum mit einem Luftpolster aus. Die – im Fall von Polypropylen als Thermoplast – 180 bis 200 °C heißen Zuschnitte werden dann miteinander verpreßt.From this composite web cut off suitable blanks. One over the Melting point of the thermoplastic preheated blank, which is in the finished Roof lining forms the upper layer, then becomes, with the foam film side to the top, in the nubby Elevations provided lower tool of a press inserted. On this Cutting is another preheated blank, which in the finished roof lining forms the lower layer, with the foam film side placed down. At the same time, the press with a smooth Upper tool hermetically sealed and laterally mounted Nozzles will Air is blown in between the blanks. Through the two closed cell Foam sheets can not escape the air, so that through the build up air pressure of the lower blank on the lower tool pressed and is there tight around the pimples. The blanks touch forms only at the support points of the raised nubs, in between a coherent one Cavity with an air cushion off. The - in the case of polypropylene as a thermoplastic - 180 to 200 ° C hot blanks are then pressed together.
Dabei schmelzen die Thermoplastfasern vollständig auf, während das vernetzte Polyolefin der Schaumfolie nicht aufschmilzt, sondern nur erweicht, so daß das Luftpolster formstabil erhalten bleibt. An den Berührungsstellen der beiden Schichten verschweißen die erweichten Schaumfolien miteinander. In der kalten Presse erstarrt dann der Thermoplast wieder, das Vlies konsolidiert und bildet die naturfaserverstärkte Thermoplastlage.there The thermoplastic fibers completely melt while the crosslinked polyolefin the foam sheet does not melt, but only softens, so that the air cushion remains dimensionally stable. At the points of contact of the two layers weld together the softened foam sheets together. Frozen in the cold press then the thermoplastic again, the fleece consolidates and forms the natural fiber reinforced Thermoplastic location.
Vor
dem Verpressen können
an der Oberseite des oberen Zuschnitts die Polsterschicht
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10160442A DE10160442B4 (en) | 2001-02-08 | 2001-12-08 | Automotive headliner |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20102194U DE20102194U1 (en) | 2001-02-08 | 2001-02-08 | Automotive headlining |
DE20102194.3 | 2001-02-08 | ||
DE10160442A DE10160442B4 (en) | 2001-02-08 | 2001-12-08 | Automotive headliner |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10160442A1 DE10160442A1 (en) | 2002-08-29 |
DE10160442B4 true DE10160442B4 (en) | 2007-09-27 |
Family
ID=7952693
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20102194U Expired - Lifetime DE20102194U1 (en) | 2001-02-08 | 2001-02-08 | Automotive headlining |
DE10160442A Expired - Fee Related DE10160442B4 (en) | 2001-02-08 | 2001-12-08 | Automotive headliner |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20102194U Expired - Lifetime DE20102194U1 (en) | 2001-02-08 | 2001-02-08 | Automotive headlining |
Country Status (1)
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DE (2) | DE20102194U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE44893E1 (en) | 2004-03-26 | 2014-05-13 | Hanwha Azdel, Inc. | Fiber reinforced thermoplastic sheets with surface coverings |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20004753U1 (en) | 2000-03-15 | 2001-07-26 | Lear Corp Gmbh & Co Kg | Interior trim part |
DE10132192B4 (en) | 2001-07-03 | 2021-10-07 | Volkswagen Ag | Side wall cladding in a vehicle |
DE10254488A1 (en) * | 2002-04-01 | 2003-10-16 | Matthias Trautmann | Air bag component for automobile passenger compartment has pressurized air chamber on side facing passenger compartment for providing cushioning in accident situation |
DE10227406A1 (en) * | 2002-06-20 | 2004-01-08 | Volkswagen Ag | Shaped inner element of a roof, in particular, for a motor vehicle comprises an energy absorption layer which faces the external roof shell and constitutes an integral part of the inner element |
US7157034B2 (en) * | 2003-04-03 | 2007-01-02 | Azdel, Inc. | Twin-sheet thermoforming process |
DE10319967A1 (en) | 2003-05-05 | 2004-11-25 | Quadrant Plastic Composites Ag | Nonwoven composite element |
DE10339125A1 (en) * | 2003-08-22 | 2005-03-17 | Seeber Ag & Co. Kg | Flat arrangement |
DE10342613A1 (en) * | 2003-09-12 | 2005-04-14 | Seeber Ag & Co. Kg | Multilayer trim part for a motor vehicle |
DE20317241U1 (en) * | 2003-11-08 | 2005-03-24 | Quadrant Plastic Composites Ag | Composite material for automotive interior parts |
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CN101177131B (en) * | 2007-09-14 | 2010-07-07 | 奇瑞汽车有限公司 | Sound-insulation endergonic front warehouse structure and manufacturing method thereof |
JP5387085B2 (en) * | 2009-03-24 | 2014-01-15 | トヨタ紡織株式会社 | Vehicle ceiling structure |
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- 2001-02-08 DE DE20102194U patent/DE20102194U1/en not_active Expired - Lifetime
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DE8802249U1 (en) * | 1988-02-22 | 1988-07-07 | Pelzer, Helmut, 5804 Herdecke | Motor vehicle headliner as lining of the interior roof surface |
DE4311592A1 (en) * | 1993-04-08 | 1994-10-13 | Roeder & Spengler Stanz | Process and apparatus for producing parts containing plastic |
EP0657281A1 (en) * | 1993-11-29 | 1995-06-14 | C.A. Greiner & Söhne Gesellschaft M.B.H. | Laminated building element |
DE19910274A1 (en) * | 1999-03-08 | 2000-09-21 | Sandler C H Gmbh | Roof covering and process for its manufacture |
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USRE44893E1 (en) | 2004-03-26 | 2014-05-13 | Hanwha Azdel, Inc. | Fiber reinforced thermoplastic sheets with surface coverings |
Also Published As
Publication number | Publication date |
---|---|
DE20102194U1 (en) | 2001-05-10 |
DE10160442A1 (en) | 2002-08-29 |
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