EP0545390A1 - Panneau avec un bord postformé - Google Patents

Panneau avec un bord postformé 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
Authority
EP
European Patent Office
Prior art keywords
coating
wood
plate
postforming
edge
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.)
Granted
Application number
EP92120582A
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German (de)
English (en)
Other versions
EP0545390B1 (fr
Inventor
Franz Dreer
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Individual
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Individual
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Publication of EP0545390A1 publication Critical patent/EP0545390A1/fr
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Classifications

    • 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.

Landscapes

  • 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)
EP92120582A 1991-12-02 1992-12-02 Panneau avec un bord postformé Expired - Lifetime EP0545390B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9114920U 1991-12-02
DE9114920U DE9114920U1 (de) 1991-12-02 1991-12-02 Platte mit Postformingkante

Publications (2)

Publication Number Publication Date
EP0545390A1 true EP0545390A1 (fr) 1993-06-09
EP0545390B1 EP0545390B1 (fr) 1995-03-29

Family

ID=6873807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120582A Expired - Lifetime EP0545390B1 (fr) 1991-12-02 1992-12-02 Panneau avec un bord postformé

Country Status (3)

Country Link
EP (1) EP0545390B1 (fr)
AT (1) ATE120396T1 (fr)
DE (2) DE9114920U1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014971A1 (fr) * 1993-05-15 1996-05-23 Hermann Fendt Procede pour la fabrication d'elements de panneaux revetus
EP0733450A1 (fr) * 1995-03-21 1996-09-25 Homag Maschinenbau Ag Procédé et dispositif pour revêtir le cÔté étroit d'une pièce avec des matériaux en bois
EP1103207A3 (fr) * 1999-11-24 2001-10-04 Franz Dreer Elément de meuble en bois, en particulier pour des caravanes, et son procédé de fabrication
EP1344629A1 (fr) * 2002-03-11 2003-09-17 Westag & Getalit AG Procédé de postformage pour revêtir les côtés minces d'une plaque
ES2207993A1 (es) * 2000-06-27 2004-06-01 Industrias San Isidro, S.L. Procedimiento de fabricacion de paneles para muebles y panel asi obtenido.
WO2004054769A1 (fr) * 2002-12-17 2004-07-01 Firma Theodor Hymmen Procede et dispositif pour usiner des panneaux en materiau derive du bois
EP1518663A1 (fr) * 2003-09-23 2005-03-30 Grupo Antolin Ingenieria, S.A. Méthode et installation pour la production d'un panneau laminé à arête vive
EP1886805A1 (fr) * 2006-08-08 2008-02-13 Vöhringer GmbH Plaque en matériau dérivé du bois
EP3626125A1 (fr) * 2018-09-18 2020-03-25 Bulthaup GmbH & Co. KG Plaque et procédé de fabrication d'une plaque
WO2020207673A1 (fr) * 2019-04-11 2020-10-15 Kaindl Invest Gmbh Panneau de postformage

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311830A1 (de) * 1993-04-14 1994-10-20 Henkel Kgaa Ummantelung von Kanten mit Beschichtungswerkstoffen
IT1270109B (it) * 1994-09-30 1997-04-28 Bipan Spa Procedimento per produrre pannelli a base di legno con spigoli arrotondati laccati e pannelli cosi' prodotti
ES2088768B1 (es) * 1994-12-12 1997-03-16 Patentes Novedades Sa Procedimiento para recubrimiento de tableros aglomerados de particulas
DE102005003123A1 (de) * 2005-01-21 2006-08-10 Fritz Egger Gmbh & Co. Verfahren zur Herstellung eines Paneels, insbesondere Fussbodenpaneels und Paneel, insbesondere Fussbodenpaneel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578535A (en) * 1967-07-22 1971-05-11 Gerhard Gohlfennen Machine for folding edges of a plastics sheet facing about a door panel,or the like
DE2357051A1 (de) * 1973-11-15 1975-05-28 Klessmann Ima Norte Maschfab Verfahren und vorrichtung zum beschichten von holz- oder holzwerkstoffplatten mit abgerundeten kanten
EP0370353A2 (fr) * 1988-11-19 1990-05-30 Gruber & Weber Procédé de fabrication d'un laminat de postformage
EP0389400A2 (fr) * 1989-01-20 1990-09-26 José Miguel Menendez Ochoa Procédé de postformage de revêtements
EP0458242A1 (fr) * 1990-05-23 1991-11-27 G. STEFANI S.p.A. Procédé et dispositif de fabrication de pièces de construction en forme de plaques avec un bord postformé

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE453728C (de) * 1924-06-22 1927-12-16 Theodor Von Karman Dr Baustoff fuer Leichtbau
LU47845A1 (fr) * 1965-01-25 1965-03-25
DE1528282A1 (de) * 1966-02-22 1970-02-12 Skogsaegarnas Ind Aktiebolag Verfahren zum Verstaerken der vorzugsweise profilierten Kanten von Spanplatten,sowie auch eine in dieser Weise kantverstaerkte Platte
DE1703323C3 (de) * 1968-05-02 1978-03-09 Furnier- Und Sperrholzwerk J.F. Werz Jr. Kg Werzalit-Pressholzwerk, 7141 Oberstenfeld Verfahren zur Herstellung und Beschichtung profilierter Spanpreßteile
SE368848B (fr) * 1969-08-29 1974-07-22 Oesterr Doka Schalung
DE2209995A1 (de) * 1972-03-02 1973-09-27 Laubach Gmbh Furnier Verfahren zur herstellung eines mehrschichtigen holzwerkstueckes sowie mehrschichtiges holzwerkstueck
DE7304666U (de) * 1973-02-08 1975-02-27 Rottmann H Elementbau Gmbh Holzplatte mit einer oder mehreren abgerundeten Kanten oder Flächen
DE2625955C2 (de) * 1976-06-10 1978-08-31 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur Herstellung eines mittleren Rahmenteiles, einer sogenannten Zarge, für das Gehäuse eines technischen Gerätes
DD284192A5 (de) * 1989-05-24 1990-11-07 Veb Wtz Der Holzverarbeitenden Industrie,Dd Nachformbarer holzwerkstoff
DE9010615U1 (de) * 1990-05-16 1990-09-20 Hans Feierabend GmbH, 37574 Einbeck Aus zellulosehaltigen Werkstoffen bestehende oberflächlich beschichtete Platten
DE9103355U1 (de) * 1991-03-19 1991-06-20 Gruber + Weber GmbH & Co KG, 7562 Gernsbach Postforming-Element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578535A (en) * 1967-07-22 1971-05-11 Gerhard Gohlfennen Machine for folding edges of a plastics sheet facing about a door panel,or the like
DE2357051A1 (de) * 1973-11-15 1975-05-28 Klessmann Ima Norte Maschfab Verfahren und vorrichtung zum beschichten von holz- oder holzwerkstoffplatten mit abgerundeten kanten
EP0370353A2 (fr) * 1988-11-19 1990-05-30 Gruber & Weber Procédé de fabrication d'un laminat de postformage
EP0389400A2 (fr) * 1989-01-20 1990-09-26 José Miguel Menendez Ochoa Procédé de postformage de revêtements
EP0458242A1 (fr) * 1990-05-23 1991-11-27 G. STEFANI S.p.A. Procédé et dispositif de fabrication de pièces de construction en forme de plaques avec un bord postformé

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014971A1 (fr) * 1993-05-15 1996-05-23 Hermann Fendt Procede pour la fabrication d'elements de panneaux revetus
EP0733450A1 (fr) * 1995-03-21 1996-09-25 Homag Maschinenbau Ag Procédé et dispositif pour revêtir le cÔté étroit d'une pièce avec des matériaux en bois
EP1103207A3 (fr) * 1999-11-24 2001-10-04 Franz Dreer Elément de meuble en bois, en particulier pour des caravanes, et son procédé de fabrication
ES2207993A1 (es) * 2000-06-27 2004-06-01 Industrias San Isidro, S.L. Procedimiento de fabricacion de paneles para muebles y panel asi obtenido.
EP1344629A1 (fr) * 2002-03-11 2003-09-17 Westag & Getalit AG Procédé de postformage pour revêtir les côtés minces d'une plaque
WO2004054769A1 (fr) * 2002-12-17 2004-07-01 Firma Theodor Hymmen Procede et dispositif pour usiner des panneaux en materiau derive du bois
EP1518663A1 (fr) * 2003-09-23 2005-03-30 Grupo Antolin Ingenieria, S.A. Méthode et installation pour la production d'un panneau laminé à arête vive
EP1886805A1 (fr) * 2006-08-08 2008-02-13 Vöhringer GmbH Plaque en matériau dérivé du bois
EP3626125A1 (fr) * 2018-09-18 2020-03-25 Bulthaup GmbH & Co. KG Plaque et procédé de fabrication d'une plaque
WO2020207673A1 (fr) * 2019-04-11 2020-10-15 Kaindl Invest Gmbh Panneau de postformage

Also Published As

Publication number Publication date
DE59201776D1 (de) 1995-05-04
DE9114920U1 (de) 1993-02-04
EP0545390B1 (fr) 1995-03-29
ATE120396T1 (de) 1995-04-15

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