EP0545390A1 - Board with postforming edge - Google Patents

Board with postforming edge Download PDF

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Publication number
EP0545390A1
EP0545390A1 EP92120582A EP92120582A EP0545390A1 EP 0545390 A1 EP0545390 A1 EP 0545390A1 EP 92120582 A EP92120582 A EP 92120582A EP 92120582 A EP92120582 A EP 92120582A EP 0545390 A1 EP0545390 A1 EP 0545390A1
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EP
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Prior art keywords
coating
wood
plate
postforming
edge
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EP92120582A
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German (de)
French (fr)
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EP0545390B1 (en
Inventor
Franz Dreer
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005—Coating boards, e.g. with a finishing or decorating layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/06—Making particle boards or fibreboards, with preformed covering layers, the particles or fibres being compressed with the layers to a board in one single pressing operation

Definitions

  • the invention relates to a plate with a postforming edge according to the preamble of patent claim 1.
  • a plate with a so-called postforming edge has already become known in the embodiment that such a plate is provided with a plastic coating, which e.g. consists of a melamine laminate, in which coating several layers are bound in the lamination process by melamine resin and thus results in a relatively thin plastic coating of the plate.
  • a plastic coating which e.g. consists of a melamine laminate, in which coating several layers are bound in the lamination process by melamine resin and thus results in a relatively thin plastic coating of the plate.
  • the postforming edge in such a way that e.g. a fold is milled from the top of the panel with a width of e.g. 45 mm and that in the area of this fold the material of the plate is removed to such an extent that one gets close to the coating glued to the underside.
  • This fold is milled so deep that only a thin coating surface, consisting of a layer of material and an underlying coating, remains on the underside of the plate.
  • a fillet is milled on the front edge of the fold in the transition area between the front edge of this fold and the material layer that has remained. Then the front edge is machined in the later desired radius of the postforming edge.
  • a hot-melt adhesive is then poured into the previously milled fillet, and the plastic material of the remaining material layer is deformed under pressure and heat, so that it is pulled over the radius end face of the fold and thereby a so-called postforming edge is achieved.
  • postforming edges could only be produced with plastic coatings, because these plastic coatings can withstand the high heat loads required for the deformation and because they have good surface resilience, which has the advantage that the production of the postforming edge was made possible without tearing the plastic material or other damage .
  • the invention is therefore based on the object of developing a plate of the type mentioned in such a way that a postforming edge can be formed with a wood-based material.
  • the invention is characterized by the technical teaching of claim 1.
  • An essential feature of the invention is that the plate is now coated with a wood-based material, or that in a second embodiment the plate already consists of a wood-based material as a whole (MDF chipboard, plywood plate or the like) and that for the first time such a wood-based material forms one Postforming edge can be reshaped.
  • this method for producing a postforming edge was only known for plastic laminates, but not for wood-based materials.
  • the coating carrier is also milled in order to form this coating carrier together with the coating as a postforming edge.
  • such a postforming edge is formed from a wood material, as will be explained below.
  • Such a wood material can e.g. a wood veneer (peeled or knife veneer) or plywood.
  • a coated wood which consists of a decorative layer made of wood, which is glued to a carrier material made of tissue, paper, PVC, thin paper or the like.
  • the present invention includes so-called MDF boards with a decorative coating, which consists of a paper or PVC material.
  • a postforming edge is also formed here, the MDF board consisting of wood fibers being reshaped in accordance with the invention in connection with the decorative coating lying above it.
  • the invention has thus recognized that for the production of postforming edges with real wood or the like arranged on the visible side, it is not sufficient to deform this real wood veneer alone because it is so thin and brittle that it would inevitably splinter and break. Instead, the invention proposes to deform a coating consisting of several layers, so that the thin and brittle real wood veneer is supported and stabilized and is now available can be deformed.
  • inventions fall under the inventive concept, which comprises that these plates either consist of a solid material, i.e. are filled as a continuous or that these plates form cavity structures, which contributes to a substantial saving in weight.
  • Such hollow structures essentially consist of strips which form a circumferential frame, this frame defining a central, central cavity, and this frame being covered on both sides (top and bottom) by the wood-based material.
  • carrier materials mentioned namely MDF, plywood or chipboard
  • sandwich constructions made of the most diverse materials mentioned above can be glued to the wood-based material according to the invention, in order then to form the postforming edge using the postforming method known per se.
  • a plate 1 which can consist of an MDF material, a chipboard material or a plywood material.
  • the plate 1 has on its top 3 a coating 2, which is also attached to the bottom 4.
  • the coatings 2 are e.g. thin film-like surfaces, which can be connected to the surface of the plate 1 in the lamination process.
  • a fold 5 is first milled into the material of the plate 1 from the top 3 of the plate 1, the overlying coating 2 also being removed in this area.
  • the fold depth of the fold 5 is now increased, so that the section that remains has only a thin material layer 6 and a coating 2 that forms the underside 4.
  • the material layer 6 is formed from the remaining material of the plate 1 in order to give the coating 2 on the underside 4 the mechanical stability necessary for the subsequent forming.
  • a rounding 7 is formed, which is designed as a groove 13.
  • this rounding 7 is deepened and enlarged by a groove cutter 8 which is subsequently moved up.
  • a fold 9 is then milled into the upper side 3, which has a depth that corresponds to the thickness of the material 2.6.
  • the front area of the material 2.6 is then cut off to its width in order to ensure that this cut edge is formed exactly in the area of the fold 9 and thus it leads to a smooth transition from the upper side 3 to the material 2.6 when the postforming edge is finished (see also FIG. 3).
  • FIG. 2 shows an enlarged section of the conditions according to the innovation.
  • the material layer 6 is formed from the material of the plate 1 and supports the coating 2 during milling, and that a hot melt adhesive 14 has now been poured into the area of the groove 13 in order to ensure the smoothest possible transition in this area guarantee.
  • the coating carrier 6 consists of a wood material, as was defined in the manner above. This means that it is a wood veneer (peeled or knife veneer), chipboard, hardboard, plywood or MDF. If the outer layer 2 consists of a wood veneer, then the coating carrier 6 is part of the plate 1 and can additionally be stabilized with paper, Tissue, etc.
  • the material layer 2, 6 produced in this way is bent in the direction of the arrow 15 in accordance with FIG. 2, pressure and heat being used in order to ensure that this material is fully and wrinkle-free against the rounded end face 21 of the plate 1.
  • a glue is applied to the inside of the material layer 6 in order to ensure adherence to the rounded end face 21.
  • the material is now bent over and thus forms the postforming edge according to the invention, which is now formed for the first time from a composite of a wood material with any top layer.
  • the coating 2 is sucked onto the processing table by applying a vacuum in order to stabilize this coating surface.
  • the thickness of the material layer 6 very small, e.g. in the range of 0.1 to about 1 mm.
  • FIG. 4 shows a construction of a plate according to the invention, it being essential that this plate is designed as a hollow plate for reasons of weight saving.
  • the coating 2 consists of a very thin decorative paper, which e.g. is printed with a wood grain, a solid color or any other color.
  • This coating 2 is glued to a veneer layer 17, this veneer layer 17 e.g. can consist of a three-layer plywood material.
  • this can consist of an MDF material or of a thin chipboard or hardboard.
  • the veneer layer 17 consists of three layers 22, 23, 24 glued shut off to one another.
  • veneer layer 17 is thinned so that only the cover layer 22, which is directly adjacent to the thin coating 2, runs around the postforming edge 16, while all other layers 23, 24 in the area of the upper side 3 of plate 1 remain.
  • the very thin coating 2 is thus only supported by the cover layer 22 and is thereby stabilized in the area of the postforming edge 16.
  • the frame consisting of strips 19, 20.
  • two strips 19, 20 have been glued to one another and that the outer strip 20 has the machined end face 21 in each case.
  • the strip 19, 20 may consist of a single piece.
  • the strips 19, 20 form a frame-like structure, forming a central cavity 18, so as to greatly reduce the weight of the entire plate.
  • FIG. 4 the upper part of the plate is now shown in FIG. 4, the plate being able to be continued beyond the line of symmetry.
  • an L-shaped postforming edge is then formed or a U-shaped postforming edge is formed, as is shown in FIG. 3.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Table Devices Or Equipment (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

A board (1) with a postforming edge consists of a backing material such as, for example, chip fibre, solid wood, plywood, MDF or the like which carries on at least one surface a coating (2) of a relatively thin material, at least one end face (21) of the board being designed as a postforming edge which consists of at least two mutually dependent materials, namely the coating (2) and a coating backing (6, 22) which are together bent around the board end face, for example forming a radius, and are connected to this end face in a positive-locking manner. The mutual dependency is given firstly by a requisite rigidity and the cohesion during the cutting operations and secondly by adequate flexibility and thermal stressing capacity during the bending around the rounded edge of the board. The coating backing is made of a wooden material.

Description

Gegenstand der Erfindung ist eine Platte mit Postformingkante nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a plate with a postforming edge according to the preamble of patent claim 1.

Eine Platte mit einer sogenannten Postforming- kante ist bereits schon in der Ausführungsform bekannt geworden, daß eine solche Platte mit einer Kunststoffbeschichtung versehen ist, die z.B. aus einem Melamin-Schichtstoff besteht, bei welcher Beschichtung mehrere Schichten im Laminierverfahren durch Melaminharz gebunden sind und so eine relativ dünne Kunststoffbeschichtung der Platte ergibt.A plate with a so-called postforming edge has already become known in the embodiment that such a plate is provided with a plastic coating, which e.g. consists of a melamine laminate, in which coating several layers are bound in the lamination process by melamine resin and thus results in a relatively thin plastic coating of the plate.

Als Plattenmaterial ist es bekannt, hierfür eine Spanfaserplatte zu verwenden oder eine MDF-Platte oder eine Sperrholzplatte.As board material it is known to use a particle board or an MDF board or a plywood board.

Es ist ferner bekannt, die Postformingkante so herzustellen, daß zunächst z.B. von der Oberseite der Platte her ein Falz ausgefräst wird mit einer Breite von z.B. 45 mm und daß im Bereich dieses Falzes das Material der Platte soweit weggenommen wird, daß man bis in die Nähe der an der Unterseite angeklebten Beschichtung gelangt.It is also known to manufacture the postforming edge in such a way that e.g. a fold is milled from the top of the panel with a width of e.g. 45 mm and that in the area of this fold the material of the plate is removed to such an extent that one gets close to the coating glued to the underside.

Man fräst diesen Falz also so tief, daß lediglich an der Unterseite der Platte nur noch eine dünne Beschichtungsfläche, bestehend aus einer Materialschicht und aus einer darunterliegenden Beschichtung, stehenbleibt.This fold is milled so deep that only a thin coating surface, consisting of a layer of material and an underlying coating, remains on the underside of the plate.

An der Stirnkante des Falzes wird im Übergangsbereich zwischen der Stirnkante dieses Falzes und der stehengebliebenen Materialschicht eine Hohlkehle eingefräst. Danach wird die Stirnkante in dem später gewünschten Radius der Postformingkante bearbeitet.A fillet is milled on the front edge of the fold in the transition area between the front edge of this fold and the material layer that has remained. Then the front edge is machined in the later desired radius of the postforming edge.

Danach wird in die vorher eingefräste Hohlkehle ein heißschmelzender Kleber eingefüllt, und unter Druck und Hitze wird das Kunststoffmaterial der stehengebliebenen Materialschicht verformt, so daß es über die einen Radius aufweisende Stirnkante des Falzes herübergezogen wird und hierdurch dann eine sogenannte Postformingkante erreicht wird.A hot-melt adhesive is then poured into the previously milled fillet, and the plastic material of the remaining material layer is deformed under pressure and heat, so that it is pulled over the radius end face of the fold and thereby a so-called postforming edge is achieved.

Bisher hatte man Postformingkanten nur mit Kunststoffbeschichtungen herstellen können, weil diese Kunststoffbeschichtungen die bei der Verformung notwendigen hohen Hitzebelastungen aushalten und weil sie eine gute Oberflächenbelastbarkeit aufweisen, was mit dem Vorteil verbunden ist, daß die Herstellung der Postformingkante ohne Einreissen des Kunststoffmaterials oder sonstiger Beschädigungen ermöglicht wurde.Previously, postforming edges could only be produced with plastic coatings, because these plastic coatings can withstand the high heat loads required for the deformation and because they have good surface resilience, which has the advantage that the production of the postforming edge was made possible without tearing the plastic material or other damage .

Es war also bei der Verwendung von Kunststoffmaterialien zur Herstellung einer Postforming- kante eine problemlose Verformung möglich.It was therefore possible to deform easily when using plastic materials to produce a postforming edge.

Bisher war es jedoch nicht bekannt, eine derartige Postformingkante mit einem Holzwerkstoff zu gestalten, weil dieser Holzwerkstoff, z.B. ein Holzfurnier, sehr empfindlich bei der Verformung einer derartigen Postformingkante ist.Until now, however, it was not known to design such a postforming edge with a wood material, because this wood material, e.g. a wood veneer, is very sensitive to the deformation of such a postforming edge.

Aus bestimmten ästhetischen Gründen ist es jedoch erwünscht, derartige Postformingkanten auch aus einem Holzwerkstoff zu gestalten.For certain aesthetic reasons, however, it is desirable to design such postforming edges also from a wood material.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Platte der eingangs genannten Art so weiterzubilden, daß eine Postformingkante mit einem Holzwerkstoff gebildet werden kann.The invention is therefore based on the object of developing a plate of the type mentioned in such a way that a postforming edge can be formed with a wood-based material.

Die Erfindung wird durch die technische Lehre des Anspruchs 1 gekennzeichnet.The invention is characterized by the technical teaching of claim 1.

Wesentliches Merkmal der Erfindung ist, daß nun erfindungsgemäss die Platte mit einem Holzwerkstoff beschichtet ist, oder daß in einer zweiten Ausführungsform die Platte bereits schon aus einem Holzwerkstoff insgesamt besteht (MDF-Spanplatte, Sperrholzplatte oder dergleichen) und daß nun erstmals ein derartiger Holzwerkstoff zu einer Postformingkante umgeformt werden kann.An essential feature of the invention is that the plate is now coated with a wood-based material, or that in a second embodiment the plate already consists of a wood-based material as a whole (MDF chipboard, plywood plate or the like) and that for the first time such a wood-based material forms one Postforming edge can be reshaped.

Wie eingangs ausgeführt, war dieses Verfahren zur Herstellung einer Postformingkante nur bei Kunststoff-Schichtstoffen bekannt, nicht aber bei Holzwerkstoffen. Bei der Erfindung wird der Beschichtungsträger mit angefräst, um diesen Beschichtungsträger zusammen mit der Beschichtung als Postformingkante auszubilden.As stated at the beginning, this method for producing a postforming edge was only known for plastic laminates, but not for wood-based materials. In the invention, the coating carrier is also milled in order to form this coating carrier together with the coating as a postforming edge.

Erfindungsgemäss wird aber eine derartige Postformingkante aus einem Holzwerkstoff gebildet, wie nachstehend erläutert wird.According to the invention, however, such a postforming edge is formed from a wood material, as will be explained below.

Ein derartiger Holzwerkstoff kann z.B. ein Holzfurnier (Schäl- oder Messerfurnier) oder ein Sperrholz sein. Ebenso kommt als Holzwerkstoff ein beschichtetes Holz in Betracht, welches aus einer Dekorschicht aus einem Holz besteht, welches auf einem Trägermaterial aus Gewebe, Papier, PVC, Dünnpapier oder dergleichen aufgeklebt ist.Such a wood material can e.g. a wood veneer (peeled or knife veneer) or plywood. Likewise suitable as wood material is a coated wood, which consists of a decorative layer made of wood, which is glued to a carrier material made of tissue, paper, PVC, thin paper or the like.

Als dritte Möglichkeit umfasst die vorliegende Erfindung sogenannte MDF-Platten mit Dekorbeschichtung, die aus einem Papier- oder PVC-Material besteht. Nach der technischen Lehre der Neuerung wird auch hier eine Postformingkante gebildet, wobei die aus Holzfasern bestehende MDF-Platte in Zusammenhang mit der darüberliegenden Dekorbeschichtung erfindungsgemäss umgeformt wird.As a third possibility, the present invention includes so-called MDF boards with a decorative coating, which consists of a paper or PVC material. According to the technical teaching of the innovation, a postforming edge is also formed here, the MDF board consisting of wood fibers being reshaped in accordance with the invention in connection with the decorative coating lying above it.

Als Material für die Platten, welche die verschiedenen Holzwerkstoffe tragen, kommen eine Reihe von Plattenarten in Betracht, Sie sämtlichst vom Erfindungsgedanken der vorliegenden Erfindung umfasst sind.As the material for the panels that carry the various wood-based materials, a number of panel types come into consideration, all of which are encompassed by the inventive concept of the present invention.

Die Erfindung hat also erkannt, daß zur Herstellung von Postformingkanten mit einem an der Sichtseite angeordneten Echtholz oder dgl. es nicht genügt, dieses Echtholzfurnier allein zu verformen, weil es so dünn und brüchig ist, daß es unweigerlich splittern und brechen würde. Stattdessen schlägt die Erfindung vor, eine aus mehreren Schichten bestehende Beschichtung zu verformen, so daß das dünne und brüchige Echtholzfurnier gestützt und stabilisiert wird und nun in überraschender Weise verformt werden kann.The invention has thus recognized that for the production of postforming edges with real wood or the like arranged on the visible side, it is not sufficient to deform this real wood veneer alone because it is so thin and brittle that it would inevitably splinter and break. Instead, the invention proposes to deform a coating consisting of several layers, so that the thin and brittle real wood veneer is supported and stabilized and is now available can be deformed.

Insbesondere werden bevorzugt Platten aus Sperrholzmaterial, MDF oder Spanplatten. Hierbei fallen Ausführungsformen unter den Erfindungsgedanken, der umfasst, daß diese Platten entweder aus einem Vollmaterial bestehen, d.h. als durchgehend gefüllt sind oder daß diese Platten Hohlraumkonstruktionen bilden, was zu einer wesentlichen Gewichtseinsparnis beiträgt.In particular, panels made of plywood material, MDF or chipboard are preferred. Here, embodiments fall under the inventive concept, which comprises that these plates either consist of a solid material, i.e. are filled as a continuous or that these plates form cavity structures, which contributes to a substantial saving in weight.

Derartige Hohlkonstruktionen bestehen im wesentlichen aus Leisten, die einen umlaufenden Rahmen bilden, wobei dieser Rahmen einen mittleren, zentralen Hohlraum definiert, und dieser Rahmen an beiden Seiten (Oberseite und Unterseite) von dem Holzwerkstoff abgedeckt ist.Such hollow structures essentially consist of strips which form a circumferential frame, this frame defining a central, central cavity, and this frame being covered on both sides (top and bottom) by the wood-based material.

Die erwähnten Trägermaterialien, nämlich MDF, Sperrholz oder Spanfaserplatten, können auch untereinander kombiniert werden. Z.B. können Sandwichkonstruktionen aus den vorher erwähnten verschiedenartigsten Materialien mit dem erfindungsgemässen Holzwerkstoff verklebt werden, um dann danach nach dem ansich bekannten Postforming-Verfahren die Postformingkante auszubilden.The carrier materials mentioned, namely MDF, plywood or chipboard, can also be combined with one another. E.g. Sandwich constructions made of the most diverse materials mentioned above can be glued to the wood-based material according to the invention, in order then to form the postforming edge using the postforming method known per se.

Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander.The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.

Alle in den Unterlagen - einschließlich der Zusammenfassung - offenbarten Angaben und Merkmale, insbesondere die in den Zeichnungen dargestellte räuliche Ausbildung werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem stand der Technik neu sind.All of the information and features disclosed in the documents - including the summary - and in particular the spatial structure shown in the drawings are claimed to be essential to the invention insofar as they are new to the prior art, individually or in combination.

Im folgenden wird die Erfindung anhand von mehrere Ausführungswege darstellenden Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere wesentliche Merkmale und Vorteile der Erfindung hervor.In the following, the invention will be explained in more detail with reference to drawings showing several possible embodiments. Further essential features and advantages of the invention emerge from the drawings and their description.

Es zeigen:

  • Figur 1a - 1h:
    • schrittweise Darstellung der Bearbeitung einer Platte zur Herstellung einer Postformingkante;
  • Figur 2:
    • Schnitt durch eine Platte nach der Erfindung vor Herstellung der Postformingkante;
  • Figur 3:
    • gleiche Darstellung wie in Figur 2 nach Herstellung der Postformingkante;
  • Figur 4:
    • schematisiert ein Schnitt durch eine weitere Ausgestaltung der Erfindung.
Show it:
  • Figure 1a - 1h:
    • step-by-step representation of the processing of a plate for producing a postforming edge;
  • Figure 2:
    • Section through a plate according to the invention before production of the postforming edge;
  • Figure 3:
    • same representation as in Figure 2 after production of the postforming edge;
  • Figure 4:
    • schematically shows a section through a further embodiment of the invention.

In Figur 1 ist eine Platte 1 dargestellt, die aus einem MDF-Material, einem Spanfaser-Material oder einem Sperrholz-Material bestehen kann. Die Platte 1 trägt an ihrer Oberseite 3 eine Beschichtung 2, die ebenso an der Unterseite 4 angebracht ist. Die Beschichtungen 2 sind z.B. dünne folienartige Flächen, die im Kaschierverfahren mit der Oberfläche der Platte 1 verbunden sein können.In Figure 1, a plate 1 is shown, which can consist of an MDF material, a chipboard material or a plywood material. The plate 1 has on its top 3 a coating 2, which is also attached to the bottom 4. The coatings 2 are e.g. thin film-like surfaces, which can be connected to the surface of the plate 1 in the lamination process.

Gemäss Figur 1 wird zunächst von der Oberseite 3 der Platte 1 her ein Falz 5 in das Material der Platte 1 eingefräst, wobei in diesem Bereich die obenliegende Beschichtung 2 ebenfallt entfernt wird.According to FIG. 1, a fold 5 is first milled into the material of the plate 1 from the top 3 of the plate 1, the overlying coating 2 also being removed in this area.

Gemäss Figur 1 wird nun die Falztiefe des Falzes 5 vergrößert, so daß der stehengebliebene Abschnitt nur noch aus einer dünnen Materialschicht 6 und aus einer die Unterseite 4 bildenden Beschichtung 2 besteht.According to FIG. 1, the fold depth of the fold 5 is now increased, so that the section that remains has only a thin material layer 6 and a coating 2 that forms the underside 4.

Wichtig ist, daß die Materialschicht 6 aus dem stehengebliebenen Material der Platte 1 gebildet ist, um der Beschichtung 2 an der Unterseite 4 die für die spätere Umformung notwendige mechanische Stabilität zu verleihen.It is important that the material layer 6 is formed from the remaining material of the plate 1 in order to give the coating 2 on the underside 4 the mechanical stability necessary for the subsequent forming.

Im Arbeitsvorgang nach Figur 1 wird im Bereich des Übergangs an der Stirnseite 21 des Falzes 5 in Richtung zu der stehengebliebenen Materialschicht 6 eine Rundung 7 eingefräst, die als Hohlkehle 13 ausgebildet ist.In the working process according to FIG. 1, in the area of the transition on the end face 21 of the fold 5 in the direction of the remaining material layer 6, a rounding 7 is formed, which is designed as a groove 13.

Gemäss Figur 1 wird diese Rundung 7 noch durch einen nachfolgend herangefahrenen Nutfräser 8 vertieft und vergrößert.According to FIG. 1, this rounding 7 is deepened and enlarged by a groove cutter 8 which is subsequently moved up.

Gemäss Figur 1f wird dann in die Oberseite 3 ein Falz 9 eingefräst, der eine Tiefe hat, die der Dicke des Materials 2,6 entspricht.According to FIG. 1f, a fold 9 is then milled into the upper side 3, which has a depth that corresponds to the thickness of the material 2.6.

In Figur 1 wird die Stirnseite 21 des Falzes 5 bearbeitet und es wird ein Radius 10 geformt, um die spätere Formgebung der Postformingkante zu erreichen.In Figure 1, the end face 21 of the fold 5 is machined and a radius 10 is formed in order to achieve the later shaping of the postforming edge.

Gemäss Figur 1 wird dann der vordere Bereich des Materials 2,6 auf Breite abgeschnitten, um zu erreichen, daß sich diese Schnittkante genau in den Bereich des Falzes 9 einformt und es hiermit zu einem glatten Übergang von der Oberseite 3 auf das Material 2,6 bei fertiggestellter Postformingkante kommt (vergl. auch Figur 3).According to FIG. 1, the front area of the material 2.6 is then cut off to its width in order to ensure that this cut edge is formed exactly in the area of the fold 9 and thus it leads to a smooth transition from the upper side 3 to the material 2.6 when the postforming edge is finished (see also FIG. 3).

Die Figur 2 zeigt die neuerungsgemässen Verhältnisse vergrössert im Schnitt.FIG. 2 shows an enlarged section of the conditions according to the innovation.

Es ist erkennbar, daß die Materialschicht 6 aus dem Material der Platte 1 gebildet ist und die Beschichtung 2 beim Fräsen stützt, und daß jetzt in den Bereich der Hohkehle 13 ein schmelzkleber 14 eingefüllt wurde, um einen möglichst satten und glatten Übergang in diesem Bereich zu gewährleisten.It can be seen that the material layer 6 is formed from the material of the plate 1 and supports the coating 2 during milling, and that a hot melt adhesive 14 has now been poured into the area of the groove 13 in order to ensure the smoothest possible transition in this area guarantee.

Wichtig ist nun, daß der Beschichtungsträger 6 aus einem Holzwerkstoff besteht, wie er in der Art vorstehend definiert wurde. Das heisst, es handelt sich also um ein Holzfurnier (Schäl- oder Messerfurnier), Spanplatte, Hartfaser, Sperrholz oder MDF. Besteht die Außenschicht 2 aus einem Holzfurnier, dann ist der Beschichtungsträger 6 Teil der Platte 1 und kann zur Stabilisation zusätzlich mit Papier, Gewebe usw. verbunden sein.It is now important that the coating carrier 6 consists of a wood material, as was defined in the manner above. This means that it is a wood veneer (peeled or knife veneer), chipboard, hardboard, plywood or MDF. If the outer layer 2 consists of a wood veneer, then the coating carrier 6 is part of the plate 1 and can additionally be stabilized with paper, Tissue, etc.

Die so hergestellte Materialschicht 2,6 wird gemäss Figur 2 in Pfeilrichtung 15 umgebogen, wobei Druck und Hitze angewendet werden, um eine satte und faltenfreie Anlage dieses Materials an die gerundete Stirnseite 21 der Platte 1 zu gewährleisten.The material layer 2, 6 produced in this way is bent in the direction of the arrow 15 in accordance with FIG. 2, pressure and heat being used in order to ensure that this material is fully and wrinkle-free against the rounded end face 21 of the plate 1.

Gleichzeitig wird auf die Innenseite der Materialschicht 6 ein Leim aufgetragen, um eine Anhaftung an der gerundeten Stirnseite 21 zu gewährleisten.At the same time, a glue is applied to the inside of the material layer 6 in order to ensure adherence to the rounded end face 21.

Gemäss Figur 3 wird das Material nun umgebogen und bildet so die erfindungsgemässe Postforming-Kante, die nun erstmals aus einem Verbund eines Holzwerkstoffes mit einer beliebigen Deckschicht gebildet ist.According to FIG. 3, the material is now bent over and thus forms the postforming edge according to the invention, which is now formed for the first time from a composite of a wood material with any top layer.

Dies war vorher nicht möglich, weil entweder der Holzwerkstoff oder die Beschichtung als solche derart empfindlich in der Verarbeitung ist, daß bisher nur Laminate (Schichtstoffe) verarbeitet werden konnten.This was not possible before because either the wood material or the coating as such is so sensitive to processing that so far only laminates could be processed.

Um ein Einreissen des Holzwerkstoffes beim Beareiten z.B. im Übergang von Figur 1b nach Figur 1 zu verhindern, ist erfindungsgemäss vorgesehen, daß die Beschichtung 2 durch Anlegen von Vakuum an dem Bearbeitungstisch festgesaugt wird, um diese Beschichtungsfläche zu stabilisieren.In order to tear the wood material when spreading e.g. To prevent in the transition from FIG. 1b to FIG. 1, it is provided according to the invention that the coating 2 is sucked onto the processing table by applying a vacuum in order to stabilize this coating surface.

Auf diese Weise ist es möglich, die Dicke der Materialschicht 6 sehr klein zu halten, z.B. im Bereich von 0,1 bis etwa 1 mm.In this way it is possible to keep the thickness of the material layer 6 very small, e.g. in the range of 0.1 to about 1 mm.

Die Figur 4 zeigt eine erfindungsgemässen Aufbau einer Platte, wobei wesentlich ist, daß aus Gewichtsersparnisgründen diese Platte als Hohlplatte ausgebildet ist.FIG. 4 shows a construction of a plate according to the invention, it being essential that this plate is designed as a hollow plate for reasons of weight saving.

Es ist erkennbar, daß die Beschichtung 2 aus einem sehr dünnen Dekorpapier besteht, welches z.B. mit einer Holzmaserung, einer Unifarbe oder einer beliebig anderen Farbe bedruckt ist. Diese Beschichtung 2 ist auf einer Furnierschicht 17 aufgeklebt, wobei diese Furnierschicht 17 in ansich bekannter Weise z.B. aus einem dreischichtigen Sperrholzmaterial bestehen kann. In einer anderen Ausführungsform kann anstatt der Furnierschicht 17 diese aus einem MDF-Material bestehen oder aus einer Dünn-Spanplatte oder Hartfaserplatte.It can be seen that the coating 2 consists of a very thin decorative paper, which e.g. is printed with a wood grain, a solid color or any other color. This coating 2 is glued to a veneer layer 17, this veneer layer 17 e.g. can consist of a three-layer plywood material. In another embodiment, instead of the veneer layer 17, this can consist of an MDF material or of a thin chipboard or hardboard.

Im Ausführungsbeispiel nach Figur 4 besteht die Furnierschicht 17 aus drei abgesperrt zueinander verleimten Schichten 22,23,24.In the exemplary embodiment according to FIG. 4, the veneer layer 17 consists of three layers 22, 23, 24 glued shut off to one another.

Wichtig ist nun, daß die Furnierschicht 17 so in der Dicke verdünnt ist, daß nur noch die Deckschicht 22, die direkt benachbart zu der dünnen Beschichtung 2 ist, mit um die Postformingkante 16 herumläuft, während alle anderen Schichten 23,24 im Bereich der Oberseite 3 der Platte 1 verbleiben.It is now important that the veneer layer 17 is thinned so that only the cover layer 22, which is directly adjacent to the thin coating 2, runs around the postforming edge 16, while all other layers 23, 24 in the area of the upper side 3 of plate 1 remain.

Damit wird die sehr dünne Beschichtung 2 nur noch durch die Deckschicht 22 abgestützt und wird hierdurch im Bereich der Postformingkante 16 stabilisiert.The very thin coating 2 is thus only supported by the cover layer 22 and is thereby stabilized in the area of the postforming edge 16.

Es handelt sich hierbei um eine Hohlkonstruktion, die aus einem rahmenförmigen Aufbau besteht, wobei der Rahmen aus Leisten 19,20 besteht. Im gezeigten Ausführungsbeispiel ist dargestellt, daß zwei Leisten 19,20 aneinanderliegend verleimt wurden und daß die äußere Leiste 20 die bearbeitete Stirnseite 21 jeweils aufweist.It is a hollow construction that consists of a frame-shaped structure, the frame consisting of strips 19, 20. In the exemplary embodiment shown, it is shown that two strips 19, 20 have been glued to one another and that the outer strip 20 has the machined end face 21 in each case.

In einer anderen Ausführungsform kann es sein, daß die Leiste 19,20 aus einem einzigen Stück besteht.In another embodiment, the strip 19, 20 may consist of a single piece.

Wichtig ist, daß die Leisten 19,20 einen rahmenförmigen Aufbau unter Bildung eines mittleren Hohlraumes 18 bilden, um so das Gewicht der gesamten Platte stark zu vermindern.It is important that the strips 19, 20 form a frame-like structure, forming a central cavity 18, so as to greatly reduce the weight of the entire plate.

Damit ist es möglich, nun erstmals mit Holzwerkstoff beschichtete Platten, die PostformingKanten aus dem gleichen Holzwerkstoff aufweisen, im Freizeitmöbelbau einzusetzen, wo es auf eine große Gewichtsersparnis ankommt.This makes it possible for the first time to use panels coated with wood-based materials, which have postforming edges made from the same wood-based material, in leisure furniture construction, where great weight savings are important.

Der zeichnerischen Einfachheit halber ist in Figur 4 nun der obere Teil der Platte dargestellt, wobei jenseits der Symmetrielinie die Platte fortgesetzt sein kann. Es wird dann - gemäss Figur 4 - entweder eine L-förmige Postforming-Kante geformt oder es wird eine U-förmige Postforming- Kante geformt, wie dies in Figur 3 dargestellt ist.For the sake of drawing simplicity, the upper part of the plate is now shown in FIG. 4, the plate being able to be continued beyond the line of symmetry. According to FIG. 4, either an L-shaped postforming edge is then formed or a U-shaped postforming edge is formed, as is shown in FIG. 3.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

  • 1 Platte1 plate
  • 2 Beschichtung2 coating
  • 3 Oberseite3 top
  • 4 Unterseite4 bottom
  • 5 Falz5 fold
  • 6 Beschichtungsträger6 coating supports
  • 7 Rundung7 rounding
  • 8 Nutfräserr8 groove cutter
  • 9 Falz9 fold
  • 10 Radius10 radius
  • 11 Schnitt11 cut
  • 12 Kante12 edge
  • 13 Hohlkehle13 fillet
  • 14 Schmelzkleber14 hot melt adhesive
  • 15 Pfeilrichtung15 direction of arrow
  • 16 Postforming-Kante16 postforming edge
  • 17 Furnierschicht17 layer of veneer
  • 18 Hohlraum18 cavity
  • 19 Leiste19 bar
  • 20 Leiste20 bars
  • 21 Stirnseite21 end face
  • 22 Deckschicht (Beschichtungsträger)22 top layer (coating substrate)
  • 23 Schicht23 layer
  • 24 Schicht24 shift

Claims (8)

1. Platte mit Postformingkante, bestehend aus einem Trägermaterial, wie z.B. Spanfaser, Vollholz, Sperrholz, MDF oder dgl., die an mindestens einer Fläche eine Beschichtung aus einem relativ dünnen Material trägt, wobei mindestens eine Stirnseite der Platte als Postformingkante ausgebildet ist, dadurch gekennzeichnet, daß die Postformingkante aus mindestens zwei sich gegenseitig stützenden Materialien besteht, nämlich der Beschichtung (2) und einem Beschichtungsträger (6), welche zusammen um die einen Radius aufweisende Stirnseite der Platte herum gebogen ist und formschlüssig mit dieser Stirnseite verbudnen ist, und daß das relativ dünne Material des Beschichtungsträgers (6) als Materialschicht ein Teil der Platte (1) ist, die aus einem Holzwerkstoff, wie MDF, Hartfaser, Spanfaser, Sperrholz oder Massivholz besteht.1. Plate with postforming edge, consisting of a carrier material, such as Chipboard, solid wood, plywood, MDF or the like, which has a coating of a relatively thin material on at least one surface, at least one end face of the plate being designed as a postforming edge, characterized in that the postforming edge consists of at least two mutually supporting materials , namely the coating (2) and a coating carrier (6), which is bent together around the end face of the plate having a radius and is positively connected to this end face, and that the relatively thin material of the coating carrier (6) is a part of the material layer the plate (1), which consists of a wood material such as MDF, hard fiber, chipboard, plywood or solid wood. 2. Platte nach Anspruch 1, dadurch gekennzeichnet, daß der Holzwerkstoff ein Holzfurnier (Schäl- oder Messerfurnier) oder ein Sperrholz ist.2. Board according to claim 1, characterized in that the wood material is a wood veneer (peeling or knife veneer) or a plywood. 3. Platte nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Beschichtung (2) des Beschichtungsträgers (6) aus Papier, Dünnpapier, PVC oder dgl. besteht.3. Plate according to claim 1 and 2, characterized in that the coating (2) of the coating carrier (6) consists of paper, thin paper, PVC or the like. 4. Platte nach Anspruch 1, dadurch gekennzeichnet, daß der Holzwerkstoff als MDF-Platte ausgebidet ist, welches eine dünne folienartige Dekorschichtung aus Holz oder Papier trägt.4. Board according to claim 1, characterized in that the wood material is formed as an MDF board, which carries a thin film-like decorative layering of wood or paper. 5. Platte nach einem der Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Platte (1) aus einer Hohlkonstruktion besteht, die von einem aus Leisten (19,20) bestehenden Rahmen gebildet wird, wobei die Leisten (19,20) zwischen sich einen Hohlraum (18) definieren, der mit einem Trägermaterial (Schichten 22 bis 24) überspannt ist, welches die Beschichtung (2) trägt.5. Plate according to one of claims 1 to 4, characterized in that the plate (1) consists of a hollow structure which is formed by a frame consisting of strips (19, 20), the strips (19, 20) between them define a cavity (18) which is covered with a carrier material (layers 22 to 24) which carries the coating (2). 6. Platte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß mindestens im Bereich der Postformingkante (16) das mit der Platte (1) verbundene Trägermaterial (die Schichten 22 bis 24) verdünnt ausgebildet ist, und daß hier lediglich der verdünnte Bereich des Trägermaterials (Schicht 22) zusammen mit der damit verbundenen, außen liegenden Beschichtung (2) die Postformingkante (16) bildet.6. Plate according to one of claims 1 to 5, characterized in that at least in the region of the postforming edge (16) the carrier material connected to the plate (1) (the layers 22 to 24) is thinned, and that here only the thinned region of the carrier material (layer 22) together with the associated outer coating (2) forms the postforming edge (16). 7. Platte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Dicke des als Beschichtungsträgermaterial eingesetzten Holzwerkstoffes (6,22) im Bereich der Postformingkante (16) zwischen 0.1 bis 1 mm beträgt.7. Plate according to one of claims 1 to 6, characterized in that the thickness of the wood-based material used as the coating carrier material (6, 22) in the region of the postforming edge (16) is between 0.1 and 1 mm. 8. Platte nach Anspruch 1, dadurch gekennzeichnet, daß die Beschichtung (2) des Beschichtungsträgers (6) aus einem Holzfurnier besteht.8. Plate according to claim 1, characterized in that the coating (2) of the coating carrier (6) consists of a wood veneer.
EP92120582A 1991-12-02 1992-12-02 Board with postforming edge Expired - Lifetime EP0545390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9114920U 1991-12-02
DE9114920U DE9114920U1 (en) 1991-12-02 1991-12-02 Plate with postforming edge

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WO1996014971A1 (en) * 1993-05-15 1996-05-23 Hermann Fendt Process for producing coated panel units
EP0733450A1 (en) * 1995-03-21 1996-09-25 Homag Maschinenbau Ag Method and device for coating the narrow side of a workpiece with wooden materials
EP1103207A3 (en) * 1999-11-24 2001-10-04 Franz Dreer Furniture element comprised of wood material, particularly for caravans, and a method for its fabrication
EP1344629A1 (en) * 2002-03-11 2003-09-17 Westag & Getalit AG Postforming method for covering the narrow sides of flat workpieces
ES2207993A1 (en) * 2000-06-27 2004-06-01 Industrias San Isidro, S.L. Procedure is for manufacture of panels for furniture and uses board shaped by conventional process, edge of which is machined to achieve required form, arranging it in a superimposed mold
WO2004054769A1 (en) * 2002-12-17 2004-07-01 Firma Theodor Hymmen Method and device for processing wood plates
EP1518663A1 (en) * 2003-09-23 2005-03-30 Grupo Antolin Ingenieria, S.A. Process and facility for manufacturing an edged layered product
EP1886805A1 (en) * 2006-08-08 2008-02-13 Vöhringer GmbH Composite wood board
WO2020207673A1 (en) * 2019-04-11 2020-10-15 Kaindl Invest Gmbh Post-forming laminate

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IT1270109B (en) * 1994-09-30 1997-04-28 Bipan Spa PROCEDURE FOR PRODUCING WOOD-BASED PANELS WITH ROUND LACQUERED CORNERS AND PANELS SO PRODUCED
ES2088768B1 (en) * 1994-12-12 1997-03-16 Patentes Novedades Sa PROCEDURE FOR COATING PARTICLE BINDING BOARDS
DE102005003123A1 (en) * 2005-01-21 2006-08-10 Fritz Egger Gmbh & Co. Method for producing a panel, in particular floor panel and panel, in particular floor panel

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WO1996014971A1 (en) * 1993-05-15 1996-05-23 Hermann Fendt Process for producing coated panel units
EP0733450A1 (en) * 1995-03-21 1996-09-25 Homag Maschinenbau Ag Method and device for coating the narrow side of a workpiece with wooden materials
EP1103207A3 (en) * 1999-11-24 2001-10-04 Franz Dreer Furniture element comprised of wood material, particularly for caravans, and a method for its fabrication
ES2207993A1 (en) * 2000-06-27 2004-06-01 Industrias San Isidro, S.L. Procedure is for manufacture of panels for furniture and uses board shaped by conventional process, edge of which is machined to achieve required form, arranging it in a superimposed mold
EP1344629A1 (en) * 2002-03-11 2003-09-17 Westag & Getalit AG Postforming method for covering the narrow sides of flat workpieces
WO2004054769A1 (en) * 2002-12-17 2004-07-01 Firma Theodor Hymmen Method and device for processing wood plates
EP1518663A1 (en) * 2003-09-23 2005-03-30 Grupo Antolin Ingenieria, S.A. Process and facility for manufacturing an edged layered product
EP1886805A1 (en) * 2006-08-08 2008-02-13 Vöhringer GmbH Composite wood board
WO2020207673A1 (en) * 2019-04-11 2020-10-15 Kaindl Invest Gmbh Post-forming laminate

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DE9114920U1 (en) 1993-02-04
EP0545390B1 (en) 1995-03-29
DE59201776D1 (en) 1995-05-04
ATE120396T1 (en) 1995-04-15

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