DE3712926A1 - COMPOSITE, ESPECIALLY CONTROL PANEL FOR MOTOR VEHICLES, AND METHOD FOR THE PRODUCTION THEREOF - Google Patents

COMPOSITE, ESPECIALLY CONTROL PANEL FOR MOTOR VEHICLES, AND METHOD FOR THE PRODUCTION THEREOF

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Publication number
DE3712926A1
DE3712926A1 DE19873712926 DE3712926A DE3712926A1 DE 3712926 A1 DE3712926 A1 DE 3712926A1 DE 19873712926 DE19873712926 DE 19873712926 DE 3712926 A DE3712926 A DE 3712926A DE 3712926 A1 DE3712926 A1 DE 3712926A1
Authority
DE
Germany
Prior art keywords
composite
glass fiber
composite according
fibers
foam
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Withdrawn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
DE19873712926
Other languages
German (de)
Inventor
Hans-Guenther Dip Haldenwanger
Siegfried Dr Ing Schaeper
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Priority to DE19873712926 priority Critical patent/DE3712926A1/en
Publication of DE3712926A1 publication Critical patent/DE3712926A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • 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
    • B32B5/24—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 one layer being a fibrous or filamentary layer
    • B32B5/245—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 one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance 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
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B60R21/045—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the instrument panel or dashboard
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • 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
    • B32B2266/0278—Polyurethane
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/08—Reinforcements
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B32B2305/186—Knitted fabrics
    • 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
    • B32B2313/00—Elements other than metals
    • B32B2313/04—Carbon
    • 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
    • B32B2375/00—Polyureas; Polyurethanes
    • 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
    • B32B2377/00—Polyamides
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a composite element, especially a control panel for motor vehicles, having a core of polyurethane foam, a film, which acts as finish, on one side of the core and a composite element which acts as a support. The state of the art was always prone to a certain number of problems, owing to the relatively high weight of such control panels. The invention remedies this situation in that it devises a composite element which comprises fibres and/or filaments and the like and is especially composed of one or more glass fibre mats, which are advantageously completely permeated by flexible polyurethane foam, which acts as a filling foam. Surprisingly, a composite element of this type nonetheless is sufficiently strong, so that there is no longer any need for the known metal plates with large inherent weights.

Description

Die Erfindung betrifft einen Verbund, insbesondere Schalttafel für Kraftfahrzeuge, nach dem Oberbegriff des Anspruchs 1, sowie ein Verfahren zu seiner Herstellung.The invention relates to a composite, in particular Control panel for motor vehicles, according to the preamble of Claim 1, and a method for its production.

Im Stand der Technik sind weiche, halbharte und harte PUR-Schäume für die unterschiedlichsten Anwendungszwecke bekannt (vgl. beispielsweise Kunststoff-Kompendium, Franck/Biederbick, 1. Aufl., Würzburg: Vogel 1984, dort S. 213).In the prior art, soft, semi-hard and hard PUR foams for a wide variety of applications known (see e.g. plastic compendium, Franck / Biederbick, 1st ed., Würzburg: Vogel 1984, there S. 213).

In der Kraftfahrzeugindustrie sind ähnliche Auskleidungen schon als Armaturenbrett verwendet worden (vgl. beispielsweise die DE-AS′en 11 81 566 und 12 69 518 der vorliegenden Anmelderin).Similar linings are used in the automotive industry already been used as a dashboard (cf. for example, DE-AS's 11 81 566 and 12 69 518 of present applicant).

Nachteilig hat sich jedoch immer wieder bemerkbar gemacht, daß aus Stabilitätsgründen relativ schwere, feste Kunststoff­ träger verstärkt und unverstärkt, bzw. starre Blechträger aus Stahl oder Aluminium mit Löchern als tragendes Verbund­ element eingesetzt wurden, die zurechtgeschnitten und gestanzt bzw. geschweißt oder geklebt werden mußten. Das bei der Serie im AUDI 200 eingesetzte Gewicht für das Ar­ maturenbrett beträgt ca. 5670 g, wovon 3500 g auf den Stahl­ blechträger entfallen, während der PUR-Schaum 1506 g und die Folie (PVC/ABS-Haut) 632 g umfassen. Es dürfte einleuchten, daß bei der Kraftfahrzeugherstellung als Ziel immer wieder die Gewichtsersparnis im Vordergrund steht.The disadvantage, however, has repeatedly made itself felt, that for reasons of stability, relatively heavy, solid plastic Reinforced and unreinforced supports, or rigid sheet metal supports made of steel or aluminum with holes as a load-bearing composite element that was cut and cut had to be punched or welded or glued. The Weight used for the Ar in the series in the AUDI 200 dashboard is approx. 5670 g, of which 3500 g on the steel Sheet carriers are eliminated, while the PUR foam 1506 g and the Cover film (PVC / ABS skin) 632 g. It should be clear that in automotive manufacturing as a goal again and again the focus is on saving weight.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zu­ grunde, den eingangs erwähnten Verbund derart zu verbessern, daß er die geschilderten Nachteile sicher vermeidet und trotzdem bei ausreichender Festigkeit erheblich leichter und kostengünstiger ist. Ein weiteres Ziel der Erfindung ist es, das Verfahren zu seiner Herstellung schneller und einfacher zu gestalten. The present invention therefore has the object reasons to improve the aforementioned network in such a way that he avoids the disadvantages described and nevertheless considerably lighter and with sufficient strength is cheaper. Another object of the invention is the process of making it faster and easier to design.  

Diese Aufgabe wird erfindungsgemäß durch den im Anspruch 1 gekennzeichneten Verbund bzw. durch das Verfahren nach Anspruch 8 gelöst.This object is achieved by the in claim 1 characterized association or by the method according to Claim 8 solved.

Überraschenderweise hat sich also gezeigt, daß es erfindungs­ gemäß möglich ist, tatsächlich auf den starren Blechträger zu verzichten und diesen durch einfache Fasern und der­ gleichen zu ersetzen. Das Gewicht der Glasfasermatte beträgt ca. 500 g, und somit nur ca. 1/7 des Blechträgers. Das Gewicht des erfindungsgemäßen Verbundes liegt bei ca. 3 kg/m2, so daß eine Gewichtsersparnis von glatt 50 bis 60% erzielt werden kann.Surprisingly, it has been shown that it is possible according to the invention to actually do without the rigid sheet metal support and to replace it with simple fibers and the like. The weight of the glass fiber mat is approx. 500 g, and thus only approx. 1/7 of the sheet carrier. The weight of the composite according to the invention is approximately 3 kg / m 2 , so that a weight saving of 50 to 60% can be achieved.

Vorteilhafterweise ist das Verbundelement als Glasfasermatte ausgebildet, die vollständig vom PUR-Weichschaum durch­ drungen ist. Einerseits kann die Glasfasermatte ein Vor­ formling mit Abstandsnocken sein und andererseits eine Spreizmatte, die zwischen zwei Glasfasermatten angeordnet ist. Es können im erfindungsgemäßen Rahmen die Glasfasern durch Kohlenstoff, Aramid, Jute oder PET-Fasern ersetzt werden.The composite element is advantageously in the form of a glass fiber mat trained completely by the flexible PUR foam is urgent. On the one hand, the glass fiber mat can be a front be shaped with spacing cams and on the other hand one Spreading mat arranged between two fiberglass mats is. The glass fibers can be used within the scope of the invention replaced by carbon, aramid, jute or PET fibers will.

In verfahrensgemäßer Hinsicht kann gegenüber dem Stand der Technik auf den separaten Arbeitsgang, das Herstellen des Blechträgers, verzichtet werden.In procedural terms, the state of the art Technology on the separate operation, the manufacturing of the sheet metal support.

Weitere Vorteile und Merkmale ergeben sich aus den vorstehenden Unteransprüchen.Further advantages and features result from the above subclaims.

Im folgenden werden verschiedene Ausführungsbeispiele anhand der Zeichnung näher erläutert.Various exemplary embodiments are described below the drawing explained in more detail.

Es zeigt:It shows:

Fig. 1 eine schematische Schnittansicht eines ersten Ausführungsbeispiels einer erfin­ dungsgemäßen Schalttafel; Figure 1 is a schematic sectional view of a first embodiment of an inventive control panel.

Fig. 2 eine schematische Schnittansicht einer zweiten Ausführungsform der erfindungsge­ mäßen Schalttafel; Fig. 2 is a schematic sectional view of a second embodiment of the panel according to the invention;

Fig. 3a-c schematische Schnittansichten noch weiterer Ausführungsbeispiele der erfin­ dungsgemäßen Schalttafel; Fig. 3a-c schematic cross-sectional views of still further embodiments of the OF INVENTION to the invention panel;

Fig. 4 eine schematische Schnittansicht eines noch weiteren Beispiels einer erfindungsgemäßen Schalttafel; Fig. 4 is a schematic sectional view of still another example of a panel according to the invention;

Fig. 5 eine ähnliche Schnittansicht zu den obigen Figuren für ein noch weiteres Beispiel der erfindungsgemäßen Schalttafel; Fig. 5 is a similar sectional view to the above figures for yet another example of the control panel according to the invention;

Fig. 6 eine ähnliche Schnittansicht zu den vorstehenden Figuren für ein weiteres Bei­ spiel der erfindungsgemäßen Schalttafel; Fig. 6 is a similar sectional view to the preceding figures for a further example of the control panel according to the invention;

Fig. 7 eine ähnliche Schnittansicht zu den obigen Figuren für ein noch weiteres Beispiel der erfindungsgemäßen Schalttafel; Fig. 7 is a similar sectional view to the above figures for yet another example of the control panel according to the invention;

Fig. 8 eine weitere ähnliche Schnittansicht der erfindungsgemäßen Schalttafel zu den vor­ stehenden Figuren; und Fig. 8 is another similar sectional view of the control panel according to the invention to the figures before; and

Fig. 9 eine schematische Querschnittsansicht im Ausschnitt durch den von Glasfaser durchsetzten PUR-Weichschaum. Fig. 9 is a schematic cross-sectional view in detail through the PUR soft foam interspersed with glass fiber.

In Fig. 1 ist die Schnittansicht der erfindungsgemäßen Schalttafel 10 im Ausschnitt gezeigt. Sie besteht aus einer obersten Schicht, nämlich einer als Folie dienenden Haut 14, die als PVC/ABS-Folie oder PVC-Haut ausgebildet ist und eine glatte oder genarbte abwischbare Oberfläche für das Ar­ maturenbrett schafft. Bei dieser Ausführungsform ist die Glasfasermatte 16 zweilagig und mit Abstandsnocken 17 ver­ sehen, die die beiden Lagen 16 miteinander verbindet. Der PUR-Weichschaum 12 durchdringt diese Glasfasermatten voll­ ständig und füllt ebenfalls die Hohlräume zwischen den beiden Lagen 16 aus. Es sei jedoch angemerkt, daß erfindungs­ gemäß das Verbundelement 16 nicht unbedingt aus einer zwei­ lagigen Glasfasermatte 16 bestehen muß, sondern ggf. eine einlagige Glasfasermatte oder dergleichen vorgesehen werden kann. Denkbar sind beispielweise auch PET-Fasern, Jute oder Aramid für das Verbundelement 16.In Fig. 1 the sectional view of the control panel 10 according to the invention is shown in detail. It consists of an uppermost layer, namely a skin 14 serving as a film, which is designed as PVC / ABS film or PVC skin and creates a smooth or grained wipeable surface for the dashboard Ar. In this embodiment, the glass fiber mat 16 has two layers and is seen with spacing cams 17 , which connects the two layers 16 to one another. The PUR soft foam 12 penetrates these glass fiber mats continuously and also fills the voids between the two layers 16 . However, it should be noted that, according to the invention, the composite element 16 does not necessarily have to consist of a two-layer glass fiber mat 16 , but if necessary a single-layer glass fiber mat or the like can be provided. For example, PET fibers, jute or aramid are also conceivable for the composite element 16 .

In Fig. 2 wird eine ähnliche Schnittansicht im Ausschnitt gezeigt, bei der beim Verbundelement 16 die Abstandsnocken 17 weggelassen worden sind. Stattdessen wird zwischen den beiden Glasfasermatten eine Spreizmatte 18 eingesetzt, die wiederum vom PUR-Weichschaum 12 gleichmäßig und vollständig durchdrungen ist.A similar sectional view is shown in detail in FIG. 2, in which the spacer cams 17 have been omitted from the composite element 16 . Instead, an expansion mat 18 is inserted between the two glass fiber mats, which in turn is uniformly and completely penetrated by the PUR soft foam 12 .

In den Fig. 3a-c werden weitere Ausführungsbeispiele mit einer einlagigen Glasfasermatte 16 bzw. Fasern oder Fäden gezeigt. In diesem Fall ist jedoch der PUR-Weichschaum 12 unmittelbar auf die Folie 14 aufgeschäumt und die Glasfaser­ matte 16 bzw. die Fasern oder Fäden bilden erst den Abschluß auf der anderen Seite des Kerns 12. Allerdings sind auch hier die Glasfasermatte bzw. Fasern oder Fäden vom PUR- Schaum 12 durchdrungen. Auch hier weist jedoch der Schicht­ körper bzw. Verbund 10 eine ausreichende Festigkeit auf.In FIGS. 3a-c show further embodiments with a single layer of glass fiber mat 16 and the fibers or filaments are shown. In this case, however, the PUR soft foam 12 is foamed directly onto the film 14 and the glass fiber mat 16 or the fibers or threads only form the end on the other side of the core 12 . However, here too the glass fiber mat or fibers or threads are penetrated by the PUR foam 12 . Here too, however, the layer body or composite 10 has sufficient strength.

In Fig. 4 besteht das Verbundelement 16 ausschließlich aus einer Glasfaserspreizmatte, die unmittelbar an die Haut bzw. Folie 14 angrenzt und vollständig vom PUR-Schaum 12 durchdrungen ist.In Fig. 4, the composite element 16 consists exclusively of a glass fiber spreading mat which is directly adjacent to the skin or film 14 and is completely penetrated by the PUR foam 12 .

Eine weitere abgewandelte Ausführungsform ist in Fig. 5 wiederum in einer Ausschnittsansicht dargestellt. Die Glasfaserspreizmatte der Fig. 4 wurde hier durch geschnitzelte bzw. gehäckselte Glasfasern ersetzt, die parallel zur Längsachse der Folie 12 ausgerichtet und vom PUR-Schaum 12 durchsetzt sind. Bei den in Fig. 5 gezeigten geschnitzelten Glasfasern als Verbundelement 16 handelt es sich um Langfasern, die in die offene Form (nicht gezeigt) bei Einsatz bekannter Spritzschaumtechnik unter Verwendung eines Schneidwerkes an der Spritzpistole, eingeschäumt werden. Gerade diese Verfahrenstechnik ermöglicht eine besonders einfache und schnelle Durchführung.Another modified embodiment is again shown in FIG. 5 in a detail view. The Glasfaserspreizmatte of Fig. 4 has been replaced here with shredded or chopped glass fibers oriented parallel to the longitudinal axis of the film 12, and are penetrated by the polyurethane foam 12. The carved glass fibers shown in FIG. 5 as the composite element 16 are long fibers which are foamed into the open shape (not shown) when using known spray foam technology using a cutting mechanism on the spray gun. This process technology enables a particularly simple and quick implementation.

In Fig. 6 ist wiederum die als Finish dienende Folie mit 14 bezeichnet. An diese grenzt zum Inneren gerichtet eine als Verbundelement 16 dienende PUR-Weichschaumschicht 16 a ab, die mit zunehmender Entfernung in ihrer Konsistenz härter wird und in diesem Bereich (16 b) mit Glasfaserschnitzeln 16 c durchsetzt ist.In Fig. 6, the film serving as a finish is again designated by 14 . These borders directed towards the interior serving as a composite element 16 PUR soft foam layer 16 a from which is harder with increasing distance in consistency and (16 b) is passed through c with fiber chips 16 in this area.

Fig. 7 zeigt eine weitere Ausführungsform, die dem Ausführungsbeispiel der Fig. 4 ähnlich ist, wobei das Verbundelement 16 hier aus einer oberflächenparallel orientierten Glasfasermatte besteht. FIG. 7 shows a further embodiment, which is similar to the exemplary embodiment of FIG. 4, the composite element 16 here consisting of a glass fiber mat oriented parallel to the surface.

Fig. 8 zeigt ein weiteres Ausführungsbeispiel, das in seinem Prinzip dem Ausführungsbeispiel der Fig. 3 gleicht. Als Verbundelement 16 wurde im vorliegenden Ausführungsbeispiel jedoch eine Spreizmatte eingesetzt. FIG. 8 shows a further embodiment, which is basically the same as the embodiment of FIG. 3. As composite member 16 has been used, however, a Spreizmatte in the present embodiment.

Abschließend wird unter Hinweis auf Fig. 9 die Struktur des PUR-Weichschaums 12 gezeigt, wie er die Hohlräume des Verbundelementes 16 vollständig durchdringt und ausfüllt, welches durch eine Wirrlage von Glasfasern gebildet wird. Hierdurch wird insbesondere deutlich, daß es sich bei dem Polyurethan-Schaum um eine weiche Konsistenz handelt, also um einen Füllschaum.Finally, with reference to FIG. 9, the structure of the flexible PUR foam 12 is shown how it completely penetrates and fills the cavities of the composite element 16 , which is formed by a tangled layer of glass fibers. This makes it particularly clear that the polyurethane foam has a soft consistency, that is to say a filling foam.

Claims (13)

1. Verbund, insbesondere Schalttafel für Kraftfahr­ zeuge, mit einem PUR-Schaum (12) als Kern, einer als Finish dienenden Folie (14) auf einer Seite des Kerns und einem Verbundelement (16) als Träger, dadurch gekennzeichnet, daß das Verbundelement (16) Fasern bzw. Fäden und dergleichen umfaßt.1. Composite, in particular control panel for motor vehicles, with a PUR foam ( 12 ) as the core, a finish film ( 14 ) on one side of the core and a composite element ( 16 ) as a carrier, characterized in that the composite element ( 16 ) Fibers or threads and the like comprises. 2. Verbund nach Anspruch 1, dadurch gekennzeichnet, daß das Verbundelement (16) aus einer oder mehreren Glasfaser- Matten, -Geweben oder -Gewirken besteht. 2. Composite according to claim 1, characterized in that the composite element ( 16 ) consists of one or more glass fiber mats, fabrics or knitted fabrics. 3. Verbund nach Anspruch 1, dadurch gekennzeichnet, daß die Fasern aus Kohlenstoff, Aramid oder anderen orientierten Synthetikfasern bestehen.3. Composite according to claim 1, characterized in that the fibers of carbon, aramid or others oriented synthetic fibers exist. 4. Verbund nach Anspruch 2, dadurch gekennzeichnet, daß der PUR-Weichschaum als Füllschaum die Glasfasermatte, das Gewebe oder Gewirk, vollständig durchdringt.4. Composite according to claim 2, characterized in that the PUR soft foam as filling foam is the glass fiber mat, the fabric or knitted fabric, completely penetrates. 5. Verbund nach Anspruch 2, dadurch gekennzeichnet, daß die Glasfasermatte doppellagig ist und zwischen den Lagen Abstandsnocken aufweist.5. Composite according to claim 2, characterized in that the glass fiber mat is double-layered and between the Layers has spacing cams. 6. Verbund nach Anspruch 2, dadurch gekennzeichnet, daß der Abstand der Glasfasermatten statt durch Abstandsnocken durch eine Spreizmatte erzeugt wird.6. Composite according to claim 2, characterized in that the distance of the glass fiber mats instead of through Distance cams is generated by an expansion mat. 7. Verbund nach Anspruch 2, dadurch gekennzeichnet, daß die Glasfasermatte als Glasfaser-Spreizmatte ausgebildet ist.7. Composite according to claim 2, characterized in that the glass fiber mat is designed as a glass fiber spreading mat is. 8. Verbund nach Anspruch 1, dadurch gekennzeichnet, daß die Fasern gehäckselt sind und insbesondere eine Länge zwischen 1 und 5 cm aufweisen. Es kann auch eine Endlosfasermatte verwendet werden.8. Composite according to claim 1, characterized in that the fibers are chopped and especially a length have between 1 and 5 cm. It can also be one Continuous fiber mat can be used. 9. Verbund nach Anspruch 1, dadurch gekennzeichnet, daß die Fasern parallel und senkrecht zur Oberfläche an­ geordnet bzw. ausgerichtet sind.9. Composite according to claim 1, characterized in that the fibers are parallel and perpendicular to the surface ordered or aligned. 10. Verbund nach Anspruch 1, dadurch gekennzeichnet, daß Krafteinleitungsbereiche durch Metall- oder Kunststoff­ einlegeteile verstärkt werden.10. Composite according to claim 1, characterized in that force application areas through metal or plastic inserts are reinforced. 11. Verfahren zum Herstellen eines Verbundes nach Anspruch 1, dadurch gekennzeichnet, daß die Folie und das Verbundelement in eine Form gelegt werden und daß dann der PUR-Schaum derart in die Form eingebracht wird, daß er als Füllschaum die Hohlräume des Verbundelementes durchdringt.11. Method for producing a composite according to Claim 1, characterized in that the film and the  Composite element are placed in a mold and then that PUR foam is introduced into the mold so that it as Filling foam penetrates the cavities of the composite element. 12. Verfahren nach Anspruch 11, dadurch gekennzeich­ net, daß die Fasern und dergleichen aus Schneidwerken- Spritzpistolen mit dem PUR-Schaumreaktionsgemisch als letz­ tes auf die Folie aufgespritzt werden.12. The method according to claim 11, characterized in net that the fibers and the like from cutting Spray guns with the PUR foam reaction mixture as the last be sprayed onto the film. 13. Verfahren nach Anspruch 11, dadurch gekennzeich­ net, daß der PUR-Schaum mit zunehmendem Abstand von der Folie in härter werdender Qualität erzeugt wird.13. The method according to claim 11, characterized in net that the PUR foam with increasing distance from the Foil in harder quality is produced.
DE19873712926 1987-04-16 1987-04-16 COMPOSITE, ESPECIALLY CONTROL PANEL FOR MOTOR VEHICLES, AND METHOD FOR THE PRODUCTION THEREOF Withdrawn DE3712926A1 (en)

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DE3843250A1 (en) * 1988-12-22 1990-07-05 Jv Kunststoffwerk FINISHED MOLDED PART
EP0425240A3 (en) * 1989-10-25 1992-03-04 Bridgestone Australia Ltd., Moulded panel
AU629702B2 (en) * 1989-10-25 1992-10-08 Bridgestone Australia Ltd. Moulded panel
GB2275684A (en) * 1993-01-07 1994-09-07 Ici Plc Semi-rigid foam
EP0623491A1 (en) * 1993-05-03 1994-11-09 Reydel Multilayered product, particularly adaptor for providing vehicle interior cover sheets
DE4401556A1 (en) * 1994-01-20 1995-07-27 Bayerische Motoren Werke Ag Component with plastic foam coating
EP0771644A3 (en) * 1995-11-03 1998-06-03 Bayer Ag Composite structures (sandwich elements) of polyurethan produced using recycled polyols, process of obtention and use thereof
DE19715033A1 (en) * 1997-04-11 1998-10-15 Opel Adam Ag Interior trim moulding for vehicle
EP1338496A1 (en) * 2002-02-21 2003-08-27 ArvinMeritor GmbH Accessory for a vehicle body and its manufacturing process
US7972676B2 (en) 2005-03-19 2011-07-05 Bayer Materialscience Ag Process for the production of fibre-reinforced composite parts
US8807590B2 (en) * 2011-08-23 2014-08-19 Faurecia Interior Systems, Inc Multi-layer vehicle airbag coverings

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843250A1 (en) * 1988-12-22 1990-07-05 Jv Kunststoffwerk FINISHED MOLDED PART
EP0425240A3 (en) * 1989-10-25 1992-03-04 Bridgestone Australia Ltd., Moulded panel
AU629702B2 (en) * 1989-10-25 1992-10-08 Bridgestone Australia Ltd. Moulded panel
GB2275684A (en) * 1993-01-07 1994-09-07 Ici Plc Semi-rigid foam
EP0623491A1 (en) * 1993-05-03 1994-11-09 Reydel Multilayered product, particularly adaptor for providing vehicle interior cover sheets
FR2704804A1 (en) * 1993-05-03 1994-11-10 Reydel Dev Laminate product intended in particular to achieve interior body trim elements.
DE4401556A1 (en) * 1994-01-20 1995-07-27 Bayerische Motoren Werke Ag Component with plastic foam coating
EP0771644A3 (en) * 1995-11-03 1998-06-03 Bayer Ag Composite structures (sandwich elements) of polyurethan produced using recycled polyols, process of obtention and use thereof
DE19715033A1 (en) * 1997-04-11 1998-10-15 Opel Adam Ag Interior trim moulding for vehicle
EP1338496A1 (en) * 2002-02-21 2003-08-27 ArvinMeritor GmbH Accessory for a vehicle body and its manufacturing process
US6869133B2 (en) 2002-02-21 2005-03-22 Arvinmeritor Gmbh Multi-layered vehicle body part and method of manufacture
US7972676B2 (en) 2005-03-19 2011-07-05 Bayer Materialscience Ag Process for the production of fibre-reinforced composite parts
US8807590B2 (en) * 2011-08-23 2014-08-19 Faurecia Interior Systems, Inc Multi-layer vehicle airbag coverings

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