EP4007510A1 - Bande de chant - Google Patents

Bande de chant

Info

Publication number
EP4007510A1
EP4007510A1 EP20740544.0A EP20740544A EP4007510A1 EP 4007510 A1 EP4007510 A1 EP 4007510A1 EP 20740544 A EP20740544 A EP 20740544A EP 4007510 A1 EP4007510 A1 EP 4007510A1
Authority
EP
European Patent Office
Prior art keywords
strip
thickness
edge
sloping
edge strip
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.)
Pending
Application number
EP20740544.0A
Other languages
German (de)
English (en)
Inventor
Joerg Dietz
Henrich ALTENHOFF
Jens Meyer Zu Drewer
Annika ROTHENBURG
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.)
Surteco GmbH
Original Assignee
Surteco 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 Surteco GmbH filed Critical Surteco GmbH
Publication of EP4007510A1 publication Critical patent/EP4007510A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B95/00—Fittings for furniture
    • A47B95/04—Keyplates; Ornaments or the like
    • A47B95/043—Protecting rims, buffers or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/20—Furniture panels or like furniture elements
    • A47B96/201—Edge features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge

Definitions

  • the invention relates to an edge strip for attachment to a narrow surface on a material panel, in particular a furniture panel, with a strip body which has a rear side as a mounting surface for attachment to the material panel and a front side as a visible side or for a visible surface.
  • Such an edge strip or cover strip is also referred to simply as an edge or edge band. It is preferably used to coat the narrow surfaces or end faces of material plates, that is, plate-shaped workpieces, such as. B. furniture panels or countertops (e.g. kitchen countertops).
  • material plates are z. B. as wooden panels or wood-based panels (z. B. chipboard, fiberboard or the like) or as composite panels. They are usually on one or both sides with a (single-colored or multi-colored) surface decoration, e.g. B. a coating or a print provided.
  • the edge strip is attached to the material plate, for. B. conventionally by means of hot melt adhesives.
  • the edge strip can be provided on its back with an adhesion promoter (primer) which is arranged on the underside of the strip core.
  • the edge strips can also be provided with a (reactivatable) melt layer or functional layer during production, which is then melted on during processing with suitable sources (e.g. laser radiation, hot air, plasma, microwave or the like).
  • suitable sources e.g. laser radiation, hot air, plasma, microwave or the like.
  • an enamel layer or functional layer is arranged on the back of the strip body, optionally with the interposition of an adhesion promoter layer.
  • the edge strips known from the prior art and intended for the narrow surface coating are usually produced with oversize, that is, they have an overall width that is greater than the thickness of the material plate.
  • edge strip After the edge strip has been attached to the narrow surface of the material plate, (mechanical) processing takes place, e.g. B. a machining to adapt the edge strip to the plate contour or plate thickness. In practice, it is common to form a radius or a chamfer on the edge band.
  • a machining In the edge strips of the type described above, which are provided on the visible side with a decor, for. B. a decorative print or a decorative coating, a disruptive interruption in the decor of the furniture panel occurs in the course of this mechanical processing. This is because, as a rule, the edge band has a decorative layer on the one hand and the material panel is provided on its surfaces with a decoration or a decorative layer, the decorative layer of the edge band being adapted to the surface decoration if necessary.
  • edge strips with a transparent strip core are also known from practice, which are also referred to as 3D edges (cf., for example, EP 0857442 A2 or DE 202016 105552 U1).
  • 3-D edges have a transparent strip core or strip body and a rear-side decoration which is visible through the transparent strip core from the front side of the strip, even after subsequent machining of the surface of the strip.
  • the present invention is preferably concerned with edge strips which have a strip core made of a non-transparent material, preferably made of a non-transparent, thermoplastic plastic and with a front-side decoration which forms the visible surface.
  • DE 19940329 A1 describes a method for fastening the edge strips on the narrow sides of furniture panels, the edge strips being applied directly to the narrow sides and being bonded with the narrow sides in an adhesive manner.
  • the edge strips can be used with an overhang on both sides in relation to the respective narrow side, with the overhangs being melted to seal the joints. Then the melted cover strip material can be removed with the production of cover strips congruent with the narrow sides, for. B. by means of a scraper or the like.
  • the invention is based on the object of creating an edge strip of the type described above, which is economical to manufacture and dispose of work is characterized by an improved visual appearance (in the assembled state) and in particular avoids the optical disadvantages described in the transition area between edge decoration and surface decoration. In particular, the annoying frame effect should be avoided or reduced ver with edge strips with decor.
  • the invention teaches in a generic edge strip of the type described above that the strip core (viewed in cross section) has a central area with a maximum thickness D and with a width b, that the strip core protrudes as an assembly projection on both sides of the central area Has side area, which at least in the area adjacent to the Mittenbe rich area has a thickness d that is less than the maximum thickness D of the middle area, that the front of the strip body at least in the middle area, preferably over the entire width of the middle area with a decoration is provided and that the side areas or assembly overhangs can be or will be separated from the central area without damaging the decoration in the central area after the edge strip has been attached to the material panel.
  • the central area preferably has a width b that corresponds to the thickness of the material plate.
  • the central area preferably has a (wall) thickness reduction at the lateral transitions to the side areas with the formation of (edge) sloping and / or curved edge areas which are also provided with the decoration and to which the side areas adjoin (outside) .
  • the Side areas to be separated are consequently to be distinguished from the sloping edge surfaces, because the side areas are geometrically demarcated or offset areas from the central area and consequently from the (sloping) edge areas.
  • the side regions preferably have a constant (or essentially constant) thickness over at least a limited region.
  • an edge strip is made available which, in a basically known manner, has a width exceeding the panel thickness and is consequently processed after attachment to the narrow surface, e.g. B. by machining (e.g. with a milling cutter and / or scraper).
  • assembly protrusions with reduced thickness or a partially reduced thickness area are specifically provided on both sides of this edging strip, so that in the course of adapting the strip to the panel thickness, only a small, decor-free edge with a reduced thickness is created and the decor in the center area of the strip remains undamaged .
  • the contour of the strip in the central area is already adapted to the intended appearance, including the decoration that extends over the entire width of the central area.
  • the measures according to the invention can avoid or at least reduce the frame effect in the case of edge strips with decoration, in particular in the case of plastic edges. This is particularly important in the case of relatively thick edge strips with a thickness of more than 1 mm, preferably more than 2 mm, e.g. B. at least 3 mm interesting, the z. B. can be used with a wood decor as a substitute for solid wood edging.
  • the invention is a different idea than z. B. DE 19940329 A1 is based, in which a double-sided overhang is used specifically for joint sealing to close the joint that z. B. is created by a hot melt adhesive to make it invisible between the cover strip and the narrow side.
  • the edge strip according to the invention can be produced economically in a simple manner using existing production techniques.
  • the strip body is preferably made in one piece, particularly preferably by extrusion.
  • the strip body is made in particular from at least one thermoplastic material.
  • the strip body is consequently produced with conventional extrusion techniques and then the decoration can be applied to the front or visible side using also known techniques, e.g. B. by a decorative print or by decorative coating.
  • the decor can in particular be the reproduction of natural or artificial structures, e.g. B. a decor in wood look or stone look.
  • the term decor also includes single-colored or multi-colored color designs or color combinations.
  • the strip body itself is preferably not designed to be transparent, but made of a solid-colored or colored plastic, the color of the plastic of the strip body preferably being adapted to the color or main color or basic color of the decoration.
  • the shape of the edge strip or the strip core is of particular importance in order to provide the specially provided, reduced-thickness protrusions. There are various options for producing such a bar.
  • the strip core with the Dickenreduzie tion and the sloping edge surfaces is produced directly by extrusion.
  • the extrusion tool for plastic extrusion is consequently adapted to the cross-sectional shape of the (finished) strip core, so that the extrusion immediately creates a strip core with the defined central area and the defined side areas. It is advantageous here that no further processing is required after the extrusion to produce the side areas with reduced thickness.
  • the strip core is first produced in a conventional basic shape by extrusion, e.g. B. with a uniform thickness across the width of the bar without the already sloping edge surfaces are made.
  • extrusion e.g. B. with a uniform thickness across the width of the bar without the already sloping edge surfaces are made.
  • an existing standard extrusion tool can be used for edge production during extrusion.
  • the sloping edge surfaces are then introduced by reducing the thickness.
  • This can e.g. B. can be done very easily by mechanical processing, z. B. by means of a scraper or cutter.
  • the reduction in thickness can take the form of a notch or notches on both sides that are introduced mechanically.
  • this manufacturing technique and thus also existing machines or machine parts can be used, whereby according to the invention the notches are not made on the rear side of the bar, but rather serve on the front side and not to create kinks, but only for a front-side thickness reduction to create the protrusion essential to the invention .
  • the front side of the strip body is provided with a decoration, at least in the middle area, which is preferably applied by printing, in which case known printing techniques, particularly preferably digital printing, can be used. Alternatively, however, analog printing processes can also be used.
  • the decoration can be designed as a coating (for example by means of a film).
  • the strip body is seen at least partially or fully ver with a surface structure in the central area, z. B. by embossing.
  • embossing is usually applied after printing or coating.
  • the thickness d of the side areas (at least in some areas) less than 50%, preferably less than 30%, e.g. B. is less than 20% of the thickness D of the central area.
  • the thinner the side area the smaller the open edge structure of the strip that remains after milling, which is not provided with a decoration.
  • the thickness of the side areas can e.g. B. (at the transition to the central area) less than 1 mm, preferably less than 0.6 mm.
  • the sloping transition or the sloping edge surfaces can have a depth of 1 mm with 5 mm, e.g. B. 1 mm to 3 mm.
  • the sloping transition or the sloping edge surface can have a width of 1 mm to 3 mm, e.g. B. 1 mm to 2 mm.
  • the width of the side areas, which defines the protrusion over the plate, is on both sides, for. B. at least 1 mm z. B. more than 1.5 mm.
  • the side areas have a (substantially) constant thickness at least over a certain width area.
  • the strip core can be provided with a melting layer or functional layer on the back, which is melted or reactivated during processing with suitable sources (e.g. laser radiation, IR light, hot air, plasma, microwaves or the like).
  • suitable sources e.g. laser radiation, IR light, hot air, plasma, microwaves or the like.
  • suitable sources e.g. laser radiation, IR light, hot air, plasma, microwaves or the like.
  • Such edging strips with their own melt layer can be produced by conventional precoating or alternatively by coextrusion.
  • the strip body is preferably made of thermoplastic material, e.g. B. made of PVC, ABS, PP, PMMA or PC. If a (polymer) functional layer or hot melt layer / hot melt adhesive layer is provided, this can also be produced in the usual way, e.g. B. EVA, TPU, PP / APAO, polyamide or other polymers or polymer blends or hot melt adhesives.
  • the strip core can be provided with a colored grain to further reduce the frame effect.
  • a colored interruption of the frame effect formed is generated in the exposed areas, which are only very small according to the invention.
  • a grain through, i.e. H. the formation of color vortices in the edge band base color of the strip body is z.
  • B. achieved through the use of moving or static mixing parts in the extrusion of edge bands made of thermoplastics through differently colored polymers.
  • extrudate melts of different colors are used, which are swirled in front of or within the profile nozzle by means of movable or static mixing elements, so that different color gradients and color swirls are generated in the profile cross-section.
  • the invention also relates to a furniture panel with an edge strip attached to a narrow surface, initially also with an unprocessed edge strip, in which the strip core with the Sobe range (on both sides) protrudes beyond the thickness of the material plate.
  • the Edge strip is consequently placed under protection in combination with the material plate in the already assembled but still unprocessed state. Starting from this state, the (two) side areas protruding beyond the plate thickness are then removed, e.g. B. by machining with a milling cutter and / or a scraper. The strip body is thus flush with the central area of the edging strip.
  • a decor-free edge is exposed, which, however, only has a very small thickness, namely a thickness d which corresponds to the reduced thickness of the side area at the transition to the central area.
  • the furniture panel is consequently placed under protection even in the assembled and finished state with the side areas removed.
  • the invention can preferably be used for edges or panels in the decor composite, in which the panels and edges have the same decor.
  • uses where the edge is in focus e.g. B. for monochrome panel surfaces with simulated wooden edges.
  • the edge is in focus, e.g. B. for monochrome panel surfaces with simulated wooden edges.
  • the use of real wood can be substituted and thus reduced.
  • the special geometry of the edge also reduces the post-processing required.
  • FIG. 1 shows an edge strip according to the invention in a first embodiment
  • FIG. 2 shows an edge strip according to the invention in a second embodiment and 3 shows a furniture panel with an edge strip according to the invention attached thereto.
  • a first embodiment of an edge strip 1 is shown for the narrow surface coating of a material plate 2, the material plate z. B. can be a furniture panel.
  • this material plate 2 is also shown simplified for better understanding.
  • the edge strip 1 has a strip body 3 made of thermoplastic material, for. B. is made by extrusion.
  • the strip body 3 has a rear side which serves as a mounting surface for attachment to the material plate 2.
  • the strip body 3 has a front side, which serves as a visible side and is provided with a decor 5, which z. B. is produced by a pressure on the last body 3.
  • the front side can also be equipped with an embossing 6, which is also only indicated in the figures.
  • Such an edge strip 1 is usually made with oversize, i. H. it has an overall width B which is greater than the thickness P of the material plate 2. The areas of the edge strip 1 protruding beyond the plate thickness P are removed after the strip has been attached to the furniture panel, e.g. B. by milling and / or with a scraper.
  • the strip core 3 - viewed in cross section - has a central region 3a which has a maximum thickness D (or also a uniform thickness D) and a width b which is less than the total width of the strip B. Furthermore, the strip core 3 on both sides of the central region 3a has a side region 3b as a mounting protrusion, which has a thickness d in the region adjoining the central region 3a, this thickness d of the side region being less than the (maximum) thickness D of the central region 3a. It can also be seen that the central area 3a at the lateral transitions 4 to the side areas 3b each have one (Wall) thickness reduction with the formation of (edge-side) sloping edge surfaces 4, these falling edge surfaces 4 (e.g.
  • the front side of the strip body is provided with the decor 5 at least in the central area and consequently also on the sloping edge surfaces 4.
  • the side areas 3b can also be provided with the decoration 5. It can also be seen that in the exemplary embodiments the side regions 3b have a constant or essentially constant thickness d completely (FIG. 1) or over a limited width region (FIG. 2).
  • FIGS. 1 and 3 show, by way of example, the state of the edge strip after it has been attached to the material panel 2, which is only indicated, so that the side areas 3b protrude beyond the panel thickness P in this state.
  • a comparison of FIGS. 1 and 3 shows that after this fastening, the side areas or assembly protrusions 3b are separated or removed, so that the edge strip 1 or its strip body 3 is flush with the surfaces of the furniture panel 2. It is important that with this removal of the side areas 3b, the decoration 5 is not damaged in the central area 3a and consequently also in the sloping edge surfaces 4.
  • There are only very small, decor-free edges or a decor-free edge which only has a thickness d which corresponds to the reduced thickness d of the side area 3b at the transition to the central area.
  • the central region (including the edge surfaces 4) has a width b which corresponds or substantially corresponds to the thickness P of the material plate 2. It is important that the subsequent machining process results in an exact adaptation of the strip to the panel thickness. Any manufacturing tolerances or assembly tolerances are consequently compensated for in the subsequent machining process, without this having a significant impact on the optical quality.
  • the fact that the thickness d of the side regions 3b is significantly less than the total thickness D or the maximum thickness D of the strip is particularly advantageous.
  • the thickness d is particularly preferably less than 20% of the thickness D.
  • a bar with a total thickness D of 3 mm is shown, in which the thickness d is only 0.5 mm.
  • the total width B is 23 mm and the width b of the central area 3a is 19 mm and thus corresponds to the thickness P of the plate, which is also 19 mm.
  • the central region of the central region 3a which has the thickness D and which is laterally adjoined by the edge surfaces 4, has a width c of approximately 15 mm in the exemplary embodiment. This means that the sloping edge surfaces 4 have a width x of 2 mm and, moreover, a depth y of 2.5 mm.
  • the strip core 3 of the edge strip 1 according to the invention is preferably produced by extrusion. After production of the strip core 3, the strip core with the decor 5, for. B. provided by printing and then (or before) optionally with an embossing 6.
  • the extrusion takes place with a tool adapted to the contour provided, d. H. the profile shown with the sloping edge surfaces 4 and the side areas 3b is created directly during the plastic extrusion.
  • Fig. 2 shows a modified embodiment in which the strip or the strip body 3 is initially produced with a conventional extrusion tool whose nozzle has an essentially rectangular cross-section, so that initially a strip body with a uniform thickness over the width without the sloping edge surfaces is produced. Only after the extrusion are the sloping edge surfaces 4 introduced by a reduction in thickness, specifically as a notch in the illustrated embodiment according to FIG. 2. The reason for this is the fact that, for a different context, corresponding tools are available for making notches in edge strips, so that in this embodiment according to FIG. 2, conventional extrusion tools and conventional processing tools can be used.
  • the edge strip 1 can moreover have an adhesion promoter layer and / or a melt layer on the rear side of the strip body 3 for attachment to the furniture panel. These measures are not shown.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Laminated Bodies (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

L'invention concerne une bande de chant (1) destinée à être fixée à une surface étroite d'un panneau de matériau (2), dotée d'un corps de bande (3) qui présente une face arrière servant de surface de montage pour la fixation au panneau de matériau (2) et une face avant apparente qui est pourvue d'une décoration (5). La bande de chant est caractérisée en ce que l'âme de bande (3) présente une zone centrale (3a) avec une épaisseur maximale (D) et une largeur (b), en ce que l'âme de bande (3) présente une zone latérale (3b) faisant saillie des deux côtés de la zone centrale (3a), ladite zone latérale présentant une épaisseur (d), qui est inférieure à l'épaisseur maximale (D) de la zone centrale (3a), au moins dans la zone adjacente à la zone centrale (3a), en ce que la face avant de l'âme de bande (3) est pourvue d'une décoration (5), au moins dans la zone centrale (3a), de préférence sur toute la largeur (b) de la zone centrale (3a), et en ce que, après la fixation de la bande de chant (1) sur le panneau de matériau (2) les zones latérales ou saillies (3b) peuvent être séparées de la zone centrale (3a) sans endommager la décoration (5) dans la zone centrale (3a).
EP20740544.0A 2019-08-02 2020-06-26 Bande de chant Pending EP4007510A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019104261.3U DE202019104261U1 (de) 2019-08-02 2019-08-02 Kantenleiste
PCT/EP2020/068093 WO2021023436A1 (fr) 2019-08-02 2020-06-26 Bande de chant

Publications (1)

Publication Number Publication Date
EP4007510A1 true EP4007510A1 (fr) 2022-06-08

Family

ID=71620395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20740544.0A Pending EP4007510A1 (fr) 2019-08-02 2020-06-26 Bande de chant

Country Status (3)

Country Link
EP (1) EP4007510A1 (fr)
DE (1) DE202019104261U1 (fr)
WO (1) WO2021023436A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019133335A1 (de) * 2019-12-06 2021-06-10 Homag Gmbh Vorrichtung sowie ein Verfahren zum Beschichten einer Fläche eines Werkstücks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701594A1 (de) 1997-01-18 1998-07-23 Doellken & Co Gmbh W Verfahren zum Herstellen einer Profilleiste, insbesondere einer Kantenleiste für die Möbelindustrie
DE19940329A1 (de) 1999-08-25 2001-03-01 Doellken & Co Gmbh W Verfahren zum Befestigen von Deckleisten auf den Schmalseiten von Möbelplatten
DE202007014991U1 (de) 2007-10-27 2009-03-12 Rehau Ag + Co Kantenleiste für Möbelstücke
ITUD20130027A1 (it) * 2013-02-27 2014-08-28 Spring Due S R L Metodo per la bordatura di pannelli, pannello cosi' ottenuto e dispositivo di rifilatura
DE202015104158U1 (de) 2015-08-07 2015-08-18 Döllken-Kunststoffverarbeitung Gmbh Kantenleiste
DE102016109362A1 (de) * 2016-05-20 2017-11-23 Fritz Egger Gmbh & Co. Og Vorrichtung und Verfahren zum Anbringen eines Kantenprofils sowie Möbelteil
DE202016105552U1 (de) 2016-10-06 2018-01-09 Döllken-Kunststoffverarbeitung Gmbh Möbelplatte

Also Published As

Publication number Publication date
WO2021023436A1 (fr) 2021-02-11
DE202019104261U1 (de) 2020-11-03

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