EP2799198A1 - Composé de chants support - Google Patents

Composé de chants support Download PDF

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Publication number
EP2799198A1
EP2799198A1 EP14157810.4A EP14157810A EP2799198A1 EP 2799198 A1 EP2799198 A1 EP 2799198A1 EP 14157810 A EP14157810 A EP 14157810A EP 2799198 A1 EP2799198 A1 EP 2799198A1
Authority
EP
European Patent Office
Prior art keywords
recess
rod
shaped element
contact surface
contact surfaces
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
EP14157810.4A
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German (de)
English (en)
Other versions
EP2799198B1 (fr
Inventor
Johannes Schmid
Lars Weimer
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.)
Homag GmbH
Original Assignee
Homag Holzbearbeitungssysteme 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 Homag Holzbearbeitungssysteme GmbH filed Critical Homag Holzbearbeitungssysteme GmbH
Publication of EP2799198A1 publication Critical patent/EP2799198A1/fr
Application granted granted Critical
Publication of EP2799198B1 publication Critical patent/EP2799198B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures

Definitions

  • the invention relates to a lightweight board, in particular sandwich panel, according to the preamble of patent claim 1 and a method for producing a lightweight board.
  • Lightweight panels of the type mentioned are used for example for the production of room doors, furniture elements, panel elements or the like. These lightweight panels are often designed as sandwich panels.
  • the thin-walled cover layers of the sandwich panels usually consist of a veneer, plastic or metal plate layer of low wall thickness, which is glued to an outer side of the middle layer.
  • the middle layer is understood to mean a filling material layer which largely consists of webs which are interconnected and enclose cavities of very different shapes. Preference is given to honeycomb or tubular structures, on the one hand give additional strength in conjunction with the cover layers, on the other hand - based on their volume - have an extremely low weight.
  • the relatively easy to be damaged middle layer is accessible from the edges or edge regions of the lightweight board and must therefore be protected and covered for design reasons.
  • the coverage of such narrow surfaces is generally done with so-called narrow-area coating tapes.
  • narrow-area coating tapes In order to avoid a "key" of the narrow-surface coating tape, ie forming a cross-sectional curved coating profile, as well as damage of the narrow surface coating by impact loads, a so-called support edge in the adjoining the narrow-area coating tape area of the Provided workpiece surface, which is connected to the adjacent cover layers via an adhesive.
  • the applicant is exclusively lightweight or sandwich panels and methods for producing the same known in which such a support edge has a substantially rectangular cross-section.
  • the EP 1 640 128 Al a lightweight panel and a method in which / in the lightweight panel at one of the narrow surfaces, a groove is milled with a rectangular cross section is / in which the support edge is introduced with the rectangular cross section by means of an adhesive / is.
  • the EP 1 961 533 a method in which the support edge is introduced in the region of the narrow surface of the lightweight panel in a section between two cover layers, without previously one of the support edge substantially corresponding recess was created in this section. Instead, the introduction of the support edge is accompanied by a plastic deformation of the lightweight panel center layer.
  • the invention is based on the idea that the inadequate stability and fatigue strength of lightweight panels of the prior art in the area of narrow surfaces is due primarily to poor adhesive quality between the support edge and inner surfaces of the recess, and that the quality of an adhesive bond substantially by the size the adhesive bonding surface is determined.
  • the lightweight panel of the present invention has a recess with two opposing recess contact surfaces and a depth extension direction and a rod-shaped member with two bar contact surfaces, wherein the bar contact surfaces each adjacent to a recess contact surface and at least one of these preferably via an adhesive with an adjacent recess contact surface is connected, configured such that at least one recess contact surface and at least one rod contact surface comprises an area whose extension direction is different from the depth direction of the recess.
  • the rod-shaped element and the recess are designed such that the rod-shaped element is at least partially positively received in the recess. This leads to a simple and easy separable fixation of the rod-shaped element in the recess, which leads to improved stability and fatigue strength and easy assembly of the lightweight board.
  • the lightweight board has two cover layers and a central layer arranged between them, wherein the middle layer preferably has a lower density than the cover layers, preferably has a honeycomb structure and is particularly preferably designed as a paper honeycomb.
  • the middle layer preferably has a lower density than the cover layers, preferably has a honeycomb structure and is particularly preferably designed as a paper honeycomb.
  • the depth extension direction of the recess is arranged normal to the narrow surface of the lightweight panel and the profile profiles of the recess and rod contact surfaces are each symmetrical to each other in relation to a center line of the lightweight panel in the depth direction.
  • This preferred embodiment leads to a simple and inexpensive plate structure and a simple and inexpensive lightweight construction board.
  • the symmetrical configuration of the recess and the rod-shaped element results in a more uniform plate loading and thus avoids local stress peaks, which in turn leads to improved strength and a longer service life.
  • the profile profiles of the recess contact surfaces are particularly preferably configured identically to the adjacent rod contact surfaces. Identical in this context is to be understood that the profile profiles are substantially equal to each other, where locally deviations from each other may be present, for example, to create local open spaces between adjacent areas.
  • This embodiment makes it possible to form an adhesive layer which has a substantially constant thickness and thus a uniform adhesive quality or adhesive bond strength in the depth direction of extension of the recess.
  • the recess height of the recess which is defined as a distance to the center line of the lightweight panels perpendicular spacing of the two recess contact surfaces, increases in the depth direction.
  • This preferred embodiment in addition to the advantage that in such a particularly simple manner, an increase in adhesive area is generated, to the advantage that such an embodiment also leads to a positive connection between the support edge and recess, which the quality of connection and thus the stability and fatigue strength the lightweight panel additionally improved.
  • the rod-shaped element has edge processing on at least one longitudinal edge facing the plate interior, so that a free space is created between the rod contact surface and the adjacent recess contact surface, wherein the edge processing is carried out in particular in the form of a chamfer or a radius.
  • the profile profile of the rod contact surfaces and that of the recess contact surfaces is wave-shaped.
  • Such an embodiment results in a large adhesive surface between recess contact surface and rod contact surface and thus in a good connection quality, without the support edge deep into the recess contact surfaces penetrates.
  • the additional positive locking increases the stability and fatigue strength of the lightweight board.
  • the recess on at least one of the lightweight block narrow side facing longitudinal edges and the rod-shaped element on at least one of the plate interior facing longitudinal edges edge processing in particular a chamfer or a radius, so here in each case a free space between the rod contact surfaces and each adjacent Recess contact surfaces is created.
  • the free space at the narrow side facing the longitudinal edges allows that provided on the support edge adhesive at a directed in the depth direction of the recess feeding the support edge is “scraped” and thus escapes the adhesive zone between the support edge and recess, which in turn in a more stable and more durable lightweight panel results.
  • the recess and the rod-shaped element are designed such that the rod-shaped element can be clicked into the recess. This leads to a particularly simple installation of the rod-shaped element in the recess and beyond to the same advantages as they were already listed in the previous point with respect to the positive connection.
  • the lightweight board is formed as a sandwich plate and the recess extends into the cover layers of the sandwich panel, so that a fold is formed, on which the rod-shaped element can be supported.
  • the present invention provides a method for producing a lightweight board, in particular lightweight board according to one of claims 1 to 10, having the features of claim 11.
  • a lightweight board in particular lightweight board according to one of claims 1 to 10, having the features of claim 11.
  • the profiling of the rod-shaped element and the supply of this rod-shaped element to the recess in the same processing station leads to a particularly fast and cost-effective production process, since two process steps are combined by this embodiment in a processing station and thus eliminates the transport time of the workpiece between these two stations.
  • the adhesive is provided on at least one rod contact surface prior to insertion of the rod-shaped element into the recess in a region which corresponds to a region of the rod-shaped element which migrates towards the interior of the plate when inserted into the recess.
  • FIGS. 1a, 2a and 3a The basic structure of a lightweight board 1 of the embodiments of the present invention is in the FIGS. 1a, 2a and 3a shown schematically. These embodiments are designed as a sandwich plate, wherein the lightweight board in the context of this invention, one-layered, for example made of light wood, a foam or plastic, may be formed.
  • the lightweight board 1 of the present embodiment comprises two thin-walled cover layers 2 and 3, which may consist for example of wood, wood materials, plastic, metal or other suitable materials.
  • the cover layers are designed as MDF chipboard.
  • the cover layers can also be designed in a multi-layered manner. Between the cover layers 2, 3, a middle layer or core layer 4 is provided, which has a lower density than the cover layers 2, 3.
  • the core layer 4 is preferably formed from a lightweight filler, which preferably has a honeycomb-like structure and in most applications has a high void content, the present invention is not limited thereto.
  • the middle layer 4 is formed as a paper honeycomb. It should be noted, however, that the core layer 4 may also be formed of the same or similar material as the cover layers 2, 3 and only has a lower density than these. In the present embodiments, the core layer 4 is bonded to the cover layers 2 and 3, wherein any other joining technologies and an integral design are conceivable here.
  • the lightweight board 1 also has a recess 5 into which a rod-shaped element or a supporting edge 6 is inserted.
  • the support edge 6 is preferably formed in the present embodiments as MDF, chip or plastic edge, wherein any other materials are conceivable here.
  • the recess 5 is designed such that it extends into the cover layers 2, 3, so that here a fold is formed, on which an inserted support edge 6 can be supported in a depth direction a of the recess 5.
  • the recess 5 and the support edge 6 are designed so that the support edge 6 on the lightweight slab surface 7 is flush with the cover layers 2, 3. This in turn makes it possible for a decorative edge 8, in particular a narrow-area coating tape, to be connected both to the cover surface side surfaces facing the narrow surface and to the support edge side surface.
  • the support edge 6 has opposite support edge contact surfaces 9 and 10, which each have a profile profile in the depth direction a of the recess 5.
  • the recess 5 has opposite recess contact surfaces 11 and 12, which likewise have a profile profile in the depth direction a of the recess 5.
  • the profile profiles of the two support edge contact surfaces 9, 10 and the two recess contact surface 11, 12 are each formed symmetrically to a lightweight panel center line m in the depth direction a.
  • the supporting edge contact surfaces 9, 10 are connected to the recess contact surfaces 11, 12 with an adhesive, in particular an EVA, PVAc or PU adhesive.
  • an adhesive in particular an EVA, PVAc or PU adhesive.
  • the present invention is particularly concerned with the formation of the connection between the support edge contact surfaces 9, 10 and the recess contact surfaces 11, 12.
  • three preferred embodiments of this embodiment between the aforementioned contact surfaces will be described with reference to the accompanying figures.
  • the recess contact surfaces 11, 12 of the recess 5 a profile profile in the depth direction a, in which the recess height, ie the distance of the recess contact surfaces 11, 12 perpendicular to the depth extension direction a, in the depth direction a continuous, here linear increases.
  • the recess height at the end of the plate zugeren the end of the recess 5 is greater than at the workpiece narrow surface facing recess end.
  • the support edge 6 has a profile course in the Depth extension direction a, in which the support edge height, ie the distance of the support edge contact surfaces 9, 10 perpendicular to the depth direction a, linearly increases in a first section to a point 22 and from then on linearly decreases in a second section.
  • the profile profile of the supporting edge 6 in the depth direction of extension a in the first section has a small amount of pitch than in the second section.
  • the supporting edge 6 has a lower height on its side facing the interior of the plate than on its side facing the narrow surface.
  • the support edge 6 has in this case along its entire profile profile to a height which is greater than the minimum distance of the cover layers 2, 3 perpendicular to the depth direction a, so that the support edge 6 abuts against its inner side facing the plate interior against contact surfaces of the cover layers 2, 3.
  • a supporting edge or recessed contact surface profile profile leads to free spaces 13 which form between the supporting edge contact surfaces 9, 10 and the recess contact surfaces 11, 12 on areas of the recess 5 facing the plate interior.
  • both the support edge contact surfaces 9, 10, and the recess contact surfaces 11, 12 in the depth direction of a recess 5 a wave-shaped profile profile.
  • This wavy profile profile begins at the workpiece narrow surface initially with an increase, so that the support edge height, ie the distance of the recess contact surfaces 10, 11 perpendicular to the depth direction a, in the direction of depth a direction to a point 14 rises before this subsequently decreases to a point 15 and then rise again.
  • the waveform in this second preferred embodiment approximately corresponds to the course of a sinusoidal function.
  • the support edge 6 at its the plate interior facing longitudinal edges on an edge processing 16, which is formed in the present embodiment in the form of a radius. This Katenbearbeitung 16 causes between the support edge contact surfaces 9, 10 and the recess contact surfaces 11, 12 free spaces 17 arise.
  • FIGS. 3a and 3b show a third preferred embodiment of the support edge or recess contact surface profile profile in the depth direction of extension a.
  • the recess height ie, the distance of the recess contact surfaces 11, 12 perpendicular to the depth direction a, decreases from the narrow surface in the depth direction a to a point 18 to remain constant from then until the end of the recess 5.
  • the thickness of the support edge 6 is constant up to a point 19, which lies in the depth direction a further inside the workpiece than the point 18, and then decreases linearly.
  • clearances 21 between the recess contact surfaces 11, 12 and the support edge contact surfaces 9, 10 are created both on the recess side facing the plate interior and free spaces 20 on the recess side facing the narrow side.
  • a preferred embodiment of a method of manufacturing a previously described embodiment of the lightweight panel 1 will be described.
  • a plate-shaped workpiece of a type described above is first provided.
  • the recess contact surfaces 11, 12 are provided with a profile profile corresponding to the lightweight panel embodiment in the depth direction a. This is preferably done with a milling tool.
  • a support edge 6 is provided and the recess 5, wherein the support edge 6 in the feed device for feeding the support edge 6 to the recess 5 on the support edge contact surfaces 9, 10 with a profile profile corresponding to the embodiment is provided.
  • the support edge 6 is provided with an adhesive and finally introduced into the recess 5.
  • the adhesive is in this case provided on the support edge 6 in a region which, in an inserted state, corresponds to a region of the support edge 6 facing the plate interior.
  • recess and rod-shaped element can be provided at both longitudinal and transverse edges as well as in corner regions of a lightweight board.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Laminated Bodies (AREA)
EP14157810.4A 2013-05-03 2014-03-05 Panneau de construction léger Active EP2799198B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013208121.9A DE102013208121A1 (de) 2013-05-03 2013-05-03 Stützkantenverbund

Publications (2)

Publication Number Publication Date
EP2799198A1 true EP2799198A1 (fr) 2014-11-05
EP2799198B1 EP2799198B1 (fr) 2017-11-22

Family

ID=50230951

Family Applications (1)

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EP14157810.4A Active EP2799198B1 (fr) 2013-05-03 2014-03-05 Panneau de construction léger

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EP (1) EP2799198B1 (fr)
DE (1) DE102013208121A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748780A (en) * 1984-01-28 1988-06-07 Duropal-Werk Eberh. Wrede Gmbh & Co. Kg Composite panels and methods of making composite panels
EP0580067A1 (fr) * 1992-07-21 1994-01-26 Media Profili Srl Procédé pour la préparation des bords de panneaux déstinés à être recouverts, et panneaux ainsi obtenus
DE19947164C1 (de) * 1999-10-01 2001-08-23 Sanipa Gmbh Badeinrichtungen Verfahren zur Herstellung einer Softformingkante sowie Umleimer zur Verwendung in einem solchen Verfahren
EP1563970A1 (fr) * 2004-02-12 2005-08-17 IMA Klessmann GmbH Holzbearbeitungssysteme Procédé de fabrication de panneaux en bois ou matériaux de substitution du bois et panneau ainsi obtenu
EP1640128A1 (fr) 2004-09-27 2006-03-29 Homag Holzbearbeitungssysteme AG Procédé de collage de bordures sur des panneaux légers
EP1785272A1 (fr) * 2005-09-23 2007-05-16 Homag Holzbearbeitungssysteme AG Panneau léger et méthode pour sa fabrication
WO2007131904A1 (fr) * 2006-05-11 2007-11-22 Fritz Egger Gmbh & Co. Élément d'étanchéite pour un panneau de construction léger
EP1961533A1 (fr) 2007-02-26 2008-08-27 Homag Holzbearbeitungssysteme AG Procédé de collage de matériaux de rebord sur des panneaux de construction légers
DE102007014832B3 (de) * 2007-03-23 2008-09-11 Technische Universität Dresden Verfahren und Vorrichtung zur Schmalflächenbeschichtung eines plattenförmigen Sandwichmaterials und eine schmalflächenbeschichtete Sandwichplatte
EP2052822A1 (fr) * 2007-10-22 2009-04-29 SCM GROUP S.p.A. Procédé et appareil d'emboîture
EP2147778A1 (fr) * 2008-07-25 2010-01-27 Fritz Egger GmbH & Co Plaque de construction légère pour la construction de meubles
CH699797A1 (de) * 2008-10-28 2010-04-30 Woodwelding Ag Verfahren zum befestigen einer kante an einem leichtbauelement.
EP2298517A1 (fr) * 2009-09-22 2011-03-23 SCM Group S.p.A. Dispositif pour préparer un panneau pour l'application d'un bord de protection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310917A (en) * 1964-04-13 1967-03-28 Sam A Simon Building construction and modular panels therefor
DE3402923C2 (de) * 1984-01-28 1986-04-10 Duropal-Werk Eberh. Wrede GmbH & Co KG, 5760 Arnsberg Verbundplatte sowie Verfahren zur Herstellung einer Verbundplatte
EP0584041A1 (fr) * 1992-08-06 1994-02-23 Ciba-Geigy Ag Profile de recouvrement pour chant de panneau
US7621102B2 (en) * 2003-10-14 2009-11-24 E.M.E.H., Inc. Door edge construction

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748780A (en) * 1984-01-28 1988-06-07 Duropal-Werk Eberh. Wrede Gmbh & Co. Kg Composite panels and methods of making composite panels
EP0580067A1 (fr) * 1992-07-21 1994-01-26 Media Profili Srl Procédé pour la préparation des bords de panneaux déstinés à être recouverts, et panneaux ainsi obtenus
DE19947164C1 (de) * 1999-10-01 2001-08-23 Sanipa Gmbh Badeinrichtungen Verfahren zur Herstellung einer Softformingkante sowie Umleimer zur Verwendung in einem solchen Verfahren
EP1563970A1 (fr) * 2004-02-12 2005-08-17 IMA Klessmann GmbH Holzbearbeitungssysteme Procédé de fabrication de panneaux en bois ou matériaux de substitution du bois et panneau ainsi obtenu
EP1640128A1 (fr) 2004-09-27 2006-03-29 Homag Holzbearbeitungssysteme AG Procédé de collage de bordures sur des panneaux légers
EP1785272A1 (fr) * 2005-09-23 2007-05-16 Homag Holzbearbeitungssysteme AG Panneau léger et méthode pour sa fabrication
WO2007131904A1 (fr) * 2006-05-11 2007-11-22 Fritz Egger Gmbh & Co. Élément d'étanchéite pour un panneau de construction léger
EP1961533A1 (fr) 2007-02-26 2008-08-27 Homag Holzbearbeitungssysteme AG Procédé de collage de matériaux de rebord sur des panneaux de construction légers
DE102007014832B3 (de) * 2007-03-23 2008-09-11 Technische Universität Dresden Verfahren und Vorrichtung zur Schmalflächenbeschichtung eines plattenförmigen Sandwichmaterials und eine schmalflächenbeschichtete Sandwichplatte
EP2052822A1 (fr) * 2007-10-22 2009-04-29 SCM GROUP S.p.A. Procédé et appareil d'emboîture
EP2147778A1 (fr) * 2008-07-25 2010-01-27 Fritz Egger GmbH & Co Plaque de construction légère pour la construction de meubles
CH699797A1 (de) * 2008-10-28 2010-04-30 Woodwelding Ag Verfahren zum befestigen einer kante an einem leichtbauelement.
EP2298517A1 (fr) * 2009-09-22 2011-03-23 SCM Group S.p.A. Dispositif pour préparer un panneau pour l'application d'un bord de protection

Also Published As

Publication number Publication date
EP2799198B1 (fr) 2017-11-22
DE102013208121A1 (de) 2014-11-06

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