EP1851047A1 - Composite material for a folding vehicle roof and method for production of a composite material - Google Patents

Composite material for a folding vehicle roof and method for production of a composite material

Info

Publication number
EP1851047A1
EP1851047A1 EP06705883A EP06705883A EP1851047A1 EP 1851047 A1 EP1851047 A1 EP 1851047A1 EP 06705883 A EP06705883 A EP 06705883A EP 06705883 A EP06705883 A EP 06705883A EP 1851047 A1 EP1851047 A1 EP 1851047A1
Authority
EP
European Patent Office
Prior art keywords
layer
composite material
leather
middle layer
vehicle roof
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Withdrawn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
EP06705883A
Other languages
German (de)
French (fr)
Inventor
Jutta Sommer
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.)
Wilhelm Karmann GmbH
Original Assignee
Wilhelm Karmann GmbH
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 Wilhelm Karmann GmbH filed Critical Wilhelm Karmann GmbH
Publication of EP1851047A1 publication Critical patent/EP1851047A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/08—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position
    • B60J7/12—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position foldable; Tensioning mechanisms therefor, e.g. struts
    • B60J7/1226—Soft tops for convertible vehicles
    • 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
    • B32B27/40—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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one 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
    • 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
    • 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
    • B32B5/024—Woven 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/04—4 layers
    • 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
    • B32B2274/00—Thermoplastic elastomer 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/08—Natural leather
    • 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
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/06—Roofs, roof membranes
    • 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
    • B32B2605/08—Cars
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor

Definitions

  • the invention relates to a composite material for a folding vehicle roof and to a method for producing such a composite material, in which a closed vehicle roof with a vehicle interior facing lower layer is at least partially designed as a woven textile layer.
  • Cabriolet vehicles known from practice are each formed with a vehicle roof, which can be converted from a first state covering a vehicle interior into a second state releasing the vehicle interior.
  • so-called Faltverdecke compared to so-called RHT covers (retractable hard-top) in the stored state on a low storage space requirement.
  • a flexible convertible top cover with the vehicle roof closed is clamped by convertible top elements extending in the vehicle longitudinal direction as well as in the vehicle transverse direction and is in a storage area together with the convertible top element when the vehicle roof is open . stored in folded condition.
  • the flexible top cover is made of leather and gives a convertible vehicle a very exclusive overall impression.
  • the leather becomes disadvantageously brittle and brittle with increasing service life, as a result of which lasting or dense encapsulation of the vehicle interior with the vehicle roof closed is not guaranteed in the long term.
  • folding tops are increasingly with soft top covers or. with synthetic-material roofing materials, such as woven fabric top cloths or PVC materials, in use, whose functionality over foldable leather covers over a longer service life is available.
  • folding tops with woven top fabric or PVC materials give a convertible vehicle compared to a vehicle, which is executed with a leather folding top, a lower-quality aesthetic overall impression, which, however, undesirable because of the design-related higher acquisition costs compared to sedans.
  • the present invention is therefore an object of the invention to provide a composite material for a foldable vehicle roof and a method for producing a composite material, in particular for a convertible vehicle having a long life, a convertible vehicle, especially with the vehicle roof closed an exclusive and gives an overall impression and is easy to produce.
  • this object is achieved with a composite material for a folding vehicle roof of a convertible vehicle according to the features of claim 1 and a method for producing a composite material according to the features of claim 5.
  • the composite material according to the invention for a foldable vehicle roof of a convertible vehicle in which a sub-layer facing a vehicle interior when the vehicle roof is closed is at least partially designed as a woven textile layer, with its closed when closed Vehicle roof facing away from the vehicle interior by a middle layer is connected to an outer leather layer, when used in the field of a convertible folding top compared to conventional leather characterized by a longer life and gives a convertible vehicle that with a folding top with a fabric fabric with woven Upper or made of PVC material, a more exclusive or more individual overall impression.
  • the composite material By means of the method according to the invention for producing a composite material which consists of a textile underlayer, an outer leather layer and at least one middle layer which connects the lower layer and the leather layer, the composite material can be produced in a simple manner, the composite material for joining the lower layer the leather layer is acted upon only with such an energy input that the middle layer undergoes at least partially melting during the bonding process.
  • FIGURE of the drawing shows a composite material according to the invention for a foldable vehicle roof of a convertible vehicle in a highly schematic representation.
  • a region of a composite material 1 for a foldable vehicle roof of a convertible vehicle is shown, in which a closed vehicle roof facing a vehicle interior lower layer is designed as a woven textile layer, as provided in conventional top covers of folding covers on the vehicle interior facing side becomes .
  • the composite material 1 On the side facing away from the vehicle interior when the vehicle roof is closed, the composite material 1 is provided with a leather layer 3 which is 0.8 mm thick and which is fixedly connected to the lower layer or textile layer 2 by a middle layer 4 arranged between the leather layer 3 and the lower layer 2 ,
  • the middle layer 4 is presently designed as a soft thermoplastic and non-reactive plastic film, the melting point in a range of 130 0 C to 170 0 C, preferably at about 150 0 C, located during the bonding process between the lower layer 2 and the leather layer 3 not changed.
  • the plastic film can be designed as a soft polyurethane film, by means of which the desired firm connection between the lower layer 2 and the leather layer 3 can be produced.
  • the leather layer 3 is embodied on its side facing the middle layer 4 with an intermediate layer 5 impregnating the leather layer 3 and increasing adhesion between the leather layer 3 and the middle layer 4.
  • the middle layer also improves the water impermeability of the composite material 1 in comparison to conventional leather folding and also has a significant influence on the flexibility of the composite material 1. Therefore, the flexibility of the composite material 1 by varying the material of the middle layer 4 in a simple manner changeable.
  • the leather layer 3 On its side facing away from the intermediate layer 5 is the leather layer 3, which by means of a dyeing process, during which the leather layer 3 is provided with a pigmentation, executed with a desired color and additionally formed with a surface embossing, so that the foldable vehicle roof with the composite material according to the invention in closed state has a particularly high-quality appearance.
  • a leather layer is first provided with the pigmentation during a dyeing process and dyed in the desired shade. Subsequently, the dyed leather layer is provided in a suitable tool with the desired surface embossing. To reduce residual moisture, the dyed and embossed leather layer is subjected to an annealing process, during which the leather layer 3 shrinks about 7%.
  • leather layer 3 is inserted together with the middle layer 4 and the lower layer 2 in a suitably preheated joining tool.
  • the joining tool the leather layer 3, the middle layer 4 and the lower layer 2 are pressed together and heated so that the middle layer 4 at least partially melting has, after their solidification, the three layers 2, 3 and 4 are firmly connected.
  • the composite material 1 constructed and produced in the described manner is designed in comparison with conventional top materials with a higher flexural strength and a higher basis weight, which, in addition to a novel surface finish or a new appearance, also has a pleasant feel and is characterized by an improved sound insulation is.
  • a foldable vehicle roof of a convertible vehicle embodied with the composite material according to the invention gives a viewer a high degree of exclusivity and also makes possible an individual embodiment of a convertible vehicle, since the composite material according to the invention can be carried out in a simple manner with a coloration desired by the buyer ,
  • the leather layer 3 of several items that are connected to each other via sewing when the naturally limited by their area leather parts individually are not sufficient to fully cover the passenger compartment to be spanned. After sewing, the leather parts sewn together are connected to the underlayer via the middle layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

A composite material (1) for a folding vehicle roof of a cabriolet vehicle is disclosed, whereby, with a closed vehicle roof, a lower layer (2), facing the vehicle interior, is at least partly embodied as a woven textile layer, connected, on the side thereof facing away from the vehicle interior, in the closed state by means of an intermediate layer (4), to an external leather layer (3). On production of the composite material (1) the same is subjected to an energy input for connection of the lower layer (2) to the leather layer (3) sufficient that the intermediate layer (4) undergoes an at least partial fusion.

Description

VERBUNDMATERIAL FÜR EIN FALTBARES FAHRZEUGDACH UND VERFAHREN ZUR HERSTELLUNG EINES VΞRBUNDMATERIALSCOMPOSITE MATERIAL FOR A FOLDABLE VEHICLE ROOF AND METHOD FOR PRODUCING A COMPOSITE MATERIAL
Die Erfindung betrifft ein Verbundmaterial für ein faltbares Fahrzeugdach sowie ein Verfahren zur Herstellung eines solchen Verbundmaterials, bei dem eine bei geschlossenem Fahrzeugdach einem Fahrzeuginnenraum zugewandte Unterschicht wenigstens bereichsweise als gewebte Textilschicht ausgeführt ist .The invention relates to a composite material for a folding vehicle roof and to a method for producing such a composite material, in which a closed vehicle roof with a vehicle interior facing lower layer is at least partially designed as a woven textile layer.
Aus der Praxis bekannte Cabriolet-Fahrzeuge sind jeweils mit einem Fahrzeugdach ausgebildet , welches aus einem einen Fahrzeuginnenraum überdeckenden ersten Zustand in einen den Fahrzeuginnenraum freigebenden zweiten Zustand überführbar ist . Dabei weisen so genannte Faltverdecke gegenüber so genannten RHT-Verdecken (Retractable-Hard-Top) in abgelegtem Zustand einen geringen Stauraumbedarf auf .Cabriolet vehicles known from practice are each formed with a vehicle roof, which can be converted from a first state covering a vehicle interior into a second state releasing the vehicle interior. In this case, so-called Faltverdecke compared to so-called RHT covers (retractable hard-top) in the stored state on a low storage space requirement.
Bei den stauraumgünstigen Faltverdecken wird ein flexibler Verdeckbezug bei geschlossenem Fahrzeugdach von in Fahrzeuglängsrichtung als auch in Fahrzeugquerrichtung verlaufenden Verdeckelementen aufgespannt und ist bei geöffnetem Fahrzeugdach in einem Ablagebereich gemeinsam mit den Verdeck- element.en in gefaltetem Zustand abgelegt .In the case of the foldable covers which are suitable for storage space, a flexible convertible top cover with the vehicle roof closed is clamped by convertible top elements extending in the vehicle longitudinal direction as well as in the vehicle transverse direction and is in a storage area together with the convertible top element when the vehicle roof is open . stored in folded condition.
Unter anderem sind aus der Praxis Lederfaltverdecke bekannt, deren flexibler Verdeckbezug aus Leder besteht und einem Cabriolet-Fahrzeug einen sehr exklusiven Gesamteindruck verleiht .Among other things, leather folding tops are known in practice, the flexible top cover is made of leather and gives a convertible vehicle a very exclusive overall impression.
Das Leder wird jedoch mit zunehmender Lebensdauer nachteil- hafterweise spröde und brüchig, wodurch eine dauerhafte bzw. dichte Kapselung des Fahrzeuginnenraums bei geschlossenem Fahrzeugdach auf Dauer nicht gewährleistet ist . Aus diesem Grund sind zunehmend Faltverdecke mit Verdeckbezügen bzw . mit Verdeckmaterialien auf synthetischer Basis , wie Verdeckstoffe mit gewebter Oberware oder PVC-Materia- lien, im Einsatz , deren Funktionalität gegenüber faltbaren Lederverdecken über eine längere Betriebsdauer zur Verfügung steht .However, the leather becomes disadvantageously brittle and brittle with increasing service life, as a result of which lasting or dense encapsulation of the vehicle interior with the vehicle roof closed is not guaranteed in the long term. For this reason, folding tops are increasingly with soft top covers or. with synthetic-material roofing materials, such as woven fabric top cloths or PVC materials, in use, whose functionality over foldable leather covers over a longer service life is available.
Faltverdecke mit gewebter Oberware oder aus PVC-Materialien verleihen jedoch einem Cabriolet-Fahrzeug im Vergleich zu einem Fahrzeug, welches mit einem Lederfaltverdeck ausgeführt ist , einen minderwertigeren ästhetischen Gesamteindruck, was j edoch aufgrund der konstruktiv bedingten höheren Anschaffungskosten im Vergleich zu Limousinen unerwünscht ist .However, folding tops with woven top fabric or PVC materials give a convertible vehicle compared to a vehicle, which is executed with a leather folding top, a lower-quality aesthetic overall impression, which, however, undesirable because of the design-related higher acquisition costs compared to sedans.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verbundmaterial für ein faltbares Fahrzeugdach sowie ein Verfahren zur Herstellung eines Verbundmaterials insbesondere für ein Cabriolet-Fahrzeug zur Verfügung zu stellen, das eine hohe Lebensdauer aufweist, einem Cabriolet-Fahrzeug insbesondere bei geschlossenem Fahrzeugdach einen exklusiven und wertigen Gesamteindruck verleiht und auf einfach Art und Weise herstellbar ist .The present invention is therefore an object of the invention to provide a composite material for a foldable vehicle roof and a method for producing a composite material, in particular for a convertible vehicle having a long life, a convertible vehicle, especially with the vehicle roof closed an exclusive and gives an overall impression and is easy to produce.
Erfindungsgemäß wird diese Aufgabe mit einem Verbundmaterial für ein faltbares Fahrzeugdach eines Cabriolet-Fahrzeugs gemäß den Merkmalen des Patentanspruches 1 und einem Verfahren zur Herstellung eines Verbundmaterials gemäß den Merkmalen des Patentanspruches 5 gelöst .According to the invention this object is achieved with a composite material for a folding vehicle roof of a convertible vehicle according to the features of claim 1 and a method for producing a composite material according to the features of claim 5.
Das erfindungsgemäße Verbundmaterial für ein faltbares Fahrzeugdach eines Cabriolet-Fahrzeugs, bei dem eine bei geschlossenem Fahrzeύgdach einem Fahrzeuginnenraum zugewandte Unterschicht wenigstens bereichsweise als gewebte Textil- schicht ausgeführt ist , die mit ihrer bei geschlossenem Fahrzeugdach dem Fahrzeuginnenraum abgewandten Seite durch eine Mittelschicht mit einer äußeren Lederschicht verbunden ist, ist beim Einsatz im Bereich eines Cabriolet-Faltverdecks im Vergleich zu herkömmlichen Leder durch eine höhere Lebensdauer gekennzeichnet und verleiht einem Cabriolet- Fahrzeug, dass mit einem Faltverdeck mit einem Verdeckstoff mit gewebter Oberware oder aus PVC-Material ausgeführt ist , einen exklusiveren bzw. individuelleren Gesamteindruck.The composite material according to the invention for a foldable vehicle roof of a convertible vehicle, in which a sub-layer facing a vehicle interior when the vehicle roof is closed is at least partially designed as a woven textile layer, with its closed when closed Vehicle roof facing away from the vehicle interior by a middle layer is connected to an outer leather layer, when used in the field of a convertible folding top compared to conventional leather characterized by a longer life and gives a convertible vehicle that with a folding top with a fabric fabric with woven Upper or made of PVC material, a more exclusive or more individual overall impression.
Dies wird durch die spezielle Ausgestaltung des Verbundstoffs mit einer wertigen Lederoberschicht und der über die Mittelschicht damit fest verbundenen textilen Unterschicht erreicht , denn dieses Schichtmaterial ist im Vergleich zu konventionellen Verdeckstoffen mit einer höheren Biegestei- figkeit und einem größeren Flächengewicht ausgeführt, was zu einer Verbesserung der Akustik im Pahrzeuginnenraum aufgrund einer Erhöhung der Schallisolierung bei gleichzeitig hochwertiger Optik führt .This is achieved by the special design of the composite with a high-grade leather upper layer and the textile underlayer fixedly connected to it via the middle layer, since this layer material is designed to have a higher flexural rigidity and a higher basis weight than conventional top materials, which leads to an improvement in the Acoustics in the passenger compartment due to an increase in sound insulation and high-quality optics leads.
Mittels des erfindungsgemäßen Verfahrens zur Herstellung eines Verbundmaterials, das aus einer textilen Unterschicht , einer äußeren Lederschicht und wenigstens einer Mittelschicht besteht, die die Unterschicht und die Lederschicht miteinander verbindet, ist das Verbundmaterial auf einfache Art und Weise herstellbar, das Verbundmaterial zum Verbinden der Unterschicht mit der Lederschicht lediglich mit einem derartigen Energieeintrag beaufschlagt wird, dass die Mittelschicht während des Verbindprozesses wenigstens bereichsweise Auf- schmelzungen erfährt .By means of the method according to the invention for producing a composite material which consists of a textile underlayer, an outer leather layer and at least one middle layer which connects the lower layer and the leather layer, the composite material can be produced in a simple manner, the composite material for joining the lower layer the leather layer is acted upon only with such an energy input that the middle layer undergoes at least partially melting during the bonding process.
Weitere Vorteile und vorteilhafte Weiterbildungen des Gegenstandes nach der Erfindung ergeben sich aus der Beschreibung, der Zeichnung und den Patentansprüchen . In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes nach der Erfindung schematisch vereinfacht dargestellt , welches in der nachfolgenden Beschreibung näher erläutert wird.Further advantages and advantageous developments of the subject matter of the invention will become apparent from the description, the drawings and the claims. In the drawing, an embodiment of the article according to the invention is shown schematically simplified, which will be explained in more detail in the following description.
Die einzige Figur der Zeichnung zeigt ein erfindungsgemäß ausgeführtes Verbundmaterial für ein faltbares Fahrzeugdach eines Cabriolet-Fahrzeugs in stark schematisierter Darstellung.The single FIGURE of the drawing shows a composite material according to the invention for a foldable vehicle roof of a convertible vehicle in a highly schematic representation.
In der Figur ist ein Bereich eines Verbundmaterials 1 für ein faltbares Fahrzeugdach eines Cabriolet-Fahrzeugs dargestellt, bei dem eine bei geschlossenem Fahrzeugdach einem Fahrzeuginnenraum zugewandte Unterschicht als gewebte Textilschicht ausgeführt ist, wie sie auch bei konventionellen Verdeckbezügen von Faltverdecken an der dem Fahrzeuginnenraum zugewandten Seite vorgesehen wird .In the figure, a region of a composite material 1 for a foldable vehicle roof of a convertible vehicle is shown, in which a closed vehicle roof facing a vehicle interior lower layer is designed as a woven textile layer, as provided in conventional top covers of folding covers on the vehicle interior facing side becomes .
Auf der bei geschlossenem Fahrzeugdach dem Fahrzeuginnenraum abgewandten Seite ist das Verbundmaterial 1 mit einer vorliegend 0 , 8 mm dicken Lederschicht 3 ausgeführt, die durch eine zwischen der Lederschicht 3 und der Unterschicht 2 angeordneten Mittelschicht 4 mit der Unterschicht bzw. der Textilschicht 2 fest verbunden ist .On the side facing away from the vehicle interior when the vehicle roof is closed, the composite material 1 is provided with a leather layer 3 which is 0.8 mm thick and which is fixedly connected to the lower layer or textile layer 2 by a middle layer 4 arranged between the leather layer 3 and the lower layer 2 ,
Die Mittelschicht 4 ist vorliegend als eine weiche thermoplastische und nicht reaktive Kunststofffolie ausgeführt, deren Schmelzpunkt in einem Bereich von 1300C bis 1700C, vorzugsweise bei etwa 1500C, liegt, der sich während des Verbindungsprozesses zwischen der Unterschicht 2 und der Lederschicht 3 nicht verändert . So kann die Kunststofffolie beispielsweise als eine weiche Polyurethanfolie ausgeführt sein, mittels der die gewünschte feste Verbindung zwischen der Unterschicht 2 und der Lederschicht 3 herstellbar ist . Die Lederschicht 3 ist vorliegend auf ihrer der Mittelschicht 4 zugewandten Seite mit einer die Lederschicht 3 imprägnierende und eine Haftung zwischen der Lederschicht 3 und der Mittelschicht 4 erhöhende Zwischenschicht 5 ausgeführt .The middle layer 4 is presently designed as a soft thermoplastic and non-reactive plastic film, the melting point in a range of 130 0 C to 170 0 C, preferably at about 150 0 C, located during the bonding process between the lower layer 2 and the leather layer 3 not changed. For example, the plastic film can be designed as a soft polyurethane film, by means of which the desired firm connection between the lower layer 2 and the leather layer 3 can be produced. In the present case, the leather layer 3 is embodied on its side facing the middle layer 4 with an intermediate layer 5 impregnating the leather layer 3 and increasing adhesion between the leather layer 3 and the middle layer 4.
Grundsätzlich verbessert auch die Mittelschicht die Wasserundurchlässigkeit des Verbundmaterials 1 im Vergleich zu herkömmlichen Lederfaltverdecken und hat zudem einen wesentlichen Einfluss auf die Flexibilität des Verbundmaterials 1. Deshalb ist die Flexibilität des Verbundmaterials 1 durch Variation des Materials der Mittelschicht 4 auf einfache Art und Weise veränderbar.Basically, the middle layer also improves the water impermeability of the composite material 1 in comparison to conventional leather folding and also has a significant influence on the flexibility of the composite material 1. Therefore, the flexibility of the composite material 1 by varying the material of the middle layer 4 in a simple manner changeable.
An seiner der Zwischenschicht 5 abgewandten Seite ist die Lederschicht 3 , welche mittels eines Färbeprozesses, während dem die Lederschicht 3 mit einer Pigmentierung versehen wird, mit einer gewünschten Farbe ausgeführt und zusätzlich mit einer Oberflächenprägung ausgebildet, so dass das faltbare Fahrzeugdach mit dem erfindungsgemäßen Verbundmaterial in geschlossenem Zustand ein besonders hochwertiges Aussehen aufweist .On its side facing away from the intermediate layer 5 is the leather layer 3, which by means of a dyeing process, during which the leather layer 3 is provided with a pigmentation, executed with a desired color and additionally formed with a surface embossing, so that the foldable vehicle roof with the composite material according to the invention in closed state has a particularly high-quality appearance.
Zur Herstellung des in der Figur dargestellten Verbundmaterials 1 wird eine Lederschicht zunächst während eines Färbeprozesses mit der Pigmentierung versehen und in dem gewünschten Farbton eingefärbt . Daran anschließend wird die gefärbte Lederschicht in einem geeigneten Werkzeug mit der gewünschten Oberflächenprägung versehen. Zur Reduzierung einer Restfeuchte wird die gefärbte und geprägte Lederschicht einem Temperverfahren unterzogen, während dem die Lederschicht 3 etwa 7 % schrumpft .To produce the composite material 1 shown in the figure, a leather layer is first provided with the pigmentation during a dyeing process and dyed in the desired shade. Subsequently, the dyed leather layer is provided in a suitable tool with the desired surface embossing. To reduce residual moisture, the dyed and embossed leather layer is subjected to an annealing process, during which the leather layer 3 shrinks about 7%.
Daran anschließend wird auf der der mit der Oberflächenprägung ausgeführten Seite abgewandten Seite der Lederschicht 3 eine imprägnierende und eine spätere Haftung zwischen der Mittelschicht 4 und der Lederschicht erhöhende Zwischenschicht 5 aufgebracht .Subsequently, on the side of the leather layer 3 facing away from the surface with the surface embossing, an impregnating and a later adhesion between the leather surface 3 is obtained Middle layer 4 and the leather layer-increasing intermediate layer 5 applied.
Anschließend wird die in der vorbeschriebenen Art und Weise vorbereitete Lederschicht 3 gemeinsam mit der Mittelschicht 4 und der Unterschicht 2 in ein entsprechend vorgewärmtes Fügewerkzeug eingelegt . In dem Fügewerkzeug werden die Lederschicht 3 , die Mittelschicht 4 und die Unterschicht 2 miteinander verpresst und derart erwärmt, dass die Mittelschicht 4 wenigstens bereichsweise Aufschmelzungen aufweist , nach deren Erstarren die drei Schichten 2 , 3 und 4 fest miteinander verbunden sind.Subsequently, the prepared in the manner described above, leather layer 3 is inserted together with the middle layer 4 and the lower layer 2 in a suitably preheated joining tool. In the joining tool, the leather layer 3, the middle layer 4 and the lower layer 2 are pressed together and heated so that the middle layer 4 at least partially melting has, after their solidification, the three layers 2, 3 and 4 are firmly connected.
Das in der beschriebenen Art und Weise aufgebaute und hergestellte Verbundmaterial 1 ist im Vergleich zu konventionellen Verdeckstoffen mit einer höheren Biegefestigkeit sowie einem höheren Flächengewicht ausgeführt', welches neben einer neuartigen Oberflächenbeschaffenheit bzw. einer neuen Optik auch eine angenehme Haptik aufweist sowie durch eine verbesserte Schallisolierung gekennzeichnet ist .The composite material 1 constructed and produced in the described manner is designed in comparison with conventional top materials with a higher flexural strength and a higher basis weight, which, in addition to a novel surface finish or a new appearance, also has a pleasant feel and is characterized by an improved sound insulation is.
Ein mit dem erfindungsgemäßen Verbundmaterial ausgeführtes faltbares Fahrzeugdach eines Cabriolet-Fahrzeugs vermittelt einem Betrachter eine hohe Exklusivität und ermöglicht zudem eine individuelle Ausgestaltung eines Cabriolet-Fahrzeugs ,, da das Verbundmaterial nach der Erfindung auf einfache Art und Weise mit einer vom Käufer gewünschten Färbung ausgeführt werden kann.A foldable vehicle roof of a convertible vehicle embodied with the composite material according to the invention gives a viewer a high degree of exclusivity and also makes possible an individual embodiment of a convertible vehicle, since the composite material according to the invention can be carried out in a simple manner with a coloration desired by the buyer ,
Selbstverständlich liegt es im Ermessen des Fachmannes , die Lederschicht 3 aus mehreren Einzelteilen herzustellen, die über Vernähungen miteinander verbunden werden, wenn die naturgemäß von ihrer Fläche her begrenzten Lederteile einzeln nicht ausreichend sind, den zu überspannenden Fahrgastraum vollständig abdecken zu können. Nach dem Vernähen können die miteinander vernähten Lederteile über die Mittelschicht mit der Unterschicht verbunden werden.Of course, it is at the discretion of the skilled person to produce the leather layer 3 of several items that are connected to each other via sewing when the naturally limited by their area leather parts individually are not sufficient to fully cover the passenger compartment to be spanned. After sewing, the leather parts sewn together are connected to the underlayer via the middle layer.
Dadurch besteht die Möglichkeit, auch große Dachflächen, wie sie beispielsweise bei viersitzigen Cabriolets auftreten, mit dem Verbundmaterial zu überspannen sowie aufwändige Dachformen bei geschlossenem Fahrzeugdach mit der erforderlichen straffen Bespannung auszuführen. This makes it possible, even large roof areas, as they occur, for example, in four-seater convertibles to span with the composite material and perform elaborate roof shapes with the vehicle roof closed with the required tight clothing.
BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS
Verbundmaterial Unterschicht, Textilschicht Leders chi cht Mittelschicht Zwischenschicht Composite underlayer, textile layer Leather chi middle layer intermediate layer

Claims

PATENTANSPRUCHE PATENT CLAIMS
1. Verbundmaterial (1) für ein faltbares Fahrzeugdach eines Cabriolet-Fahrzeugs, bei dem eine bei geschlossenem Fahrzeugdach einem Fahrzeuginnenraum zugewandte Unterschicht (2) wenigstens bereichsweise als gewebte Textil- schicht ausgeführt ist, die auf ihrer bei geschlossenem Fahrzeugdach dem Fahrzeuginnenraum abgewandten Seite durch eine Mittelschicht (4 ) mit einer Lederschicht (3 ) verbunden ist .1. Composite material (1) for a foldable vehicle roof of a convertible vehicle, in which a vehicle interior with closed vehicle roof facing lower layer (2) is at least partially designed as a woven textile layer on its side facing away from the vehicle interior with a closed vehicle roof by a Middle layer (4) with a leather layer (3) is connected.
2. Verbundmaterial nach Anspruch 1, dadurch gekennzeichnet, dass die Mittelschicht (4) eine weiche thermoplastische Kunststofffolie ist, deren Schmelzpunkt in einem Bereich von 1300C bis 1700C, vorzugsweise bei etwa 1500C, liegt .2. Composite material according to claim 1, characterized in that the middle layer (4) is a soft thermoplastic film whose melting point in a range of 130 0 C to 170 0 C, preferably at about 150 0 C.
3. Verbundmaterial nach Anspruch 1 oder 2 , . dadurch gekennzeichnet, dass die der Mittelschicht (4) abgewandte Seite der Lederschicht (3 ) mit einer Oberflächenprägung ausgeführt ist .3. Composite material according to claim 1 or 2,. characterized in that the middle layer (4) facing away from the leather layer (3) is designed with a surface embossing.
4. Verbundmaterial nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, dass auf der Mittelschicht (4) zugewandten Seite der Lederschicht (3 ) eine die Lederschicht (3 ) imprägnierende 1 und eine Haftung zwischen der Lederschicht (3) und der Mittelschicht (4) erhöhende Zwischenschicht (5) aufgebracht ist .4. Composite material according to one of claims 1 to 3, characterized in that on the middle layer (4) facing side of the leather layer (3) a leather layer (3) impregnating 1 and a bond between the leather layer (3) and the middle layer (4 ) increasing intermediate layer (5) is applied.
5. Verfahren zur Herstellung eines Verbundmaterials (1) , das aus einer textilen Unterschicht (2 ) , einer äußeren Lederschicht (3 ) und wenigstens einer Mittelschicht (4) besteht , die die Unterschicht (2 ) und die Lederschicht (3 ) miteinander verbindet, wobei das Verbundmaterial (1) zum Verbinden der Unterschicht (2) mit der Lederschicht (3) mit einem derartigen Energieeintrag beaufschlagt wird, dass die Mittelschicht (4) während des Verbindprozesses wenigstens bereichsweise Aufschmelzungen erfährt .5. A method for producing a composite material (1), which consists of a textile lower layer (2), an outer leather layer (3) and at least one middle layer (4) comprising the lower layer (2) and the leather layer (3), wherein the composite material (1) for connecting the lower layer (2) to the leather layer (3) is subjected to such an energy input that the middle layer (4) undergoes at least partially reflow during the bonding process.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass das Verbundmaterial (1) während dem Verbinden der Unterschicht (2 ) mit der Lederschicht (3) mechanisch mit Druck beaufschlagt wird.6. The method according to claim 5, characterized in that the composite material (1) during the bonding of the lower layer (2) with the leather layer (3) is mechanically pressurized.
7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Mittelschicht (4) auf 1300C bis 1700C, vorzugsweise auf 1500C, erwärmt wird.7. The method according to claim 5 or 6, characterized in that the middle layer (4) to 130 0 C to 170 0 C, preferably to 150 0 C, is heated.
8. Verfahren nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Lederschicht (3 ) vor dem Verbinden mit der Unterschicht (2 ) zur Reduzierung einer Restfeuchte getempert wird.8. The method according to any one of claims 5 to 7, characterized in that the leather layer (3) prior to bonding to the lower layer (2) is tempered to reduce residual moisture.
9. Verfahren nach einem der Ansprüche 5 bis 8 , dadurch gekennzeichnet, dass die Lederschicht (3 ) vor dem Verbindungsprozess mit der Unterschicht (2) auf der der Mittelschicht (4) zugewandten Seite mit einer imprägnierenden und eine Haftung zwischen der Lederschicht (3 ) und der Mittelschicht (4) erhöhende Zwischenschicht (5) versehen wird.9. The method according to any one of claims 5 to 8, characterized in that the leather layer (3) prior to the bonding process with the lower layer (2) on the middle layer (4) facing side with an impregnating and adhesion between the leather layer (3) and the middle layer (4) increasing intermediate layer (5) is provided.
10. Verfahren nach einem der Ansprüche 5 bis 9 , dadurch gekennzeichnet, dass die Lederschicht (3) auf der der Mittelschicht (4) abgewandten Seite unter Druckbeaufschlagung mit einer Oberflächenprägung versehen wird.10. The method according to any one of claims 5 to 9, characterized in that the leather layer (3) on the middle of the layer (4) opposite side is provided under pressure with a surface embossing.
11. Verfahren nach einem der Ansprüche 5 bis 10 , dadurch gekennzeichnet , dass wenigstens auf der der Mittelschicht (4) abgewandten Seite der Lederschicht (3 ) eine Pigmentierung aufgebracht wird. 11. The method according to any one of claims 5 to 10, characterized in that at least on the middle layer (4) facing away from the leather layer (3) a pigmentation is applied.
EP06705883A 2005-02-10 2006-02-02 Composite material for a folding vehicle roof and method for production of a composite material Withdrawn EP1851047A1 (en)

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DE102005006033A DE102005006033A1 (en) 2005-02-10 2005-02-10 Composite material for a folding vehicle roof and method for producing a composite material
PCT/DE2006/000154 WO2006084432A1 (en) 2005-02-10 2006-02-02 Composite material for a folding vehicle roof and method for production of a composite material

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