EP0790369A1 - Board with improved properties - Google Patents

Board with improved properties Download PDF

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Publication number
EP0790369A1
EP0790369A1 EP97102025A EP97102025A EP0790369A1 EP 0790369 A1 EP0790369 A1 EP 0790369A1 EP 97102025 A EP97102025 A EP 97102025A EP 97102025 A EP97102025 A EP 97102025A EP 0790369 A1 EP0790369 A1 EP 0790369A1
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EP
European Patent Office
Prior art keywords
board
boards
corner
width
board according
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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.)
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Application number
EP97102025A
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German (de)
French (fr)
Inventor
Carl-Walter Roth
Hans-Dieter Dold
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Holzwerk Rotenbach GmbH
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Holzwerk Rotenbach GmbH
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Publication of EP0790369A1 publication Critical patent/EP0790369A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/10—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of wood or with an outer layer of wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/04—Forming boards or similar elements the form surface being of wood

Definitions

  • the present invention relates to a board, in particular a side board, for example for cladding ceilings and walls.
  • the cladding of ceilings or walls with boards is known.
  • the walls to be shuttered are provided with a slatted frame and the boards are attached to this.
  • the boards used here often have connecting elements, for example, a groove on one of their narrow sides and a tongue on the other narrow side. The boards can thus be pushed into one another and ensure largely seamless formwork.
  • the processing of tongue and groove boards requires a high accuracy of fit of the connecting elements, so that twisted or bent boards can not be fitted or only with difficulty.
  • the fitting requires precise manual work, which is particularly problematic under adverse environmental conditions, such as cold.
  • the present invention is therefore based on the technical problem of providing boards that overcome the aforementioned disadvantages, in particular are simple and inexpensive to produce, are stable when fitted, and ensure complete formwork.
  • the technical problem underlying the invention is solved by providing a board with the features of the main claim.
  • the invention provides a board with a front, a back and two end faces and two narrow sides, the narrow sides each having a connection shape for a composite installation that extends over the entire length of the board, and wherein the connection shape is a corner recess between the narrow side and Front is designed so that the width of the front is less than that of the back.
  • narrow sides are understood to mean the sides of an elongated board which limit the width, while the end faces limit the length of the board.
  • the front of a board is understood to mean the side that is reduced in width by the corner recesses emanating from the narrow sides. No such corner recesses are formed between the narrow sides and the back.
  • a connection formation for a composite installation is to be understood as the design of the board, which is a stable and gapless arrangement the boards enable each other to form a wood composite.
  • the board according to the invention thus has on both narrow sides on the same board side, that is to say the front side, in each case a corner recess which extends over the entire length of the board.
  • Such boards can be produced without problems, for example by means of circular saw technology, in one or more work steps, which has proven to be particularly advantageous compared to the production of tongue and groove boards.
  • the boards according to the invention are mutually fitted, that is, the front of a board lies in one plane with the backs of the adjacent boards and vice versa, so that the board areas formed on the basis of the corner recesses overlap and form overlapping surfaces which press against one another and the surface to be boarded cover.
  • tongue and groove boards there can be no fitting problems, since the recesses always match.
  • the drying of boards leads to a shrinkage behavior, which is particularly undesirable in conventional boards when the boards have already been fitted. In such a case, translucent fading distances occur.
  • the boards according to the invention have the advantage that the natural shrinkage behavior occurring during the drying process becomes particularly stable and impermeable Connection of the boards leads.
  • the boards bend against the radius of curvature of the annual rings.
  • the recesses that is, particularly preferably in the direction of the convex side of the grain, i.e. the annual rings, the overlapping surfaces created by the corner recesses press against one another, since the individual, mutually laid boards bend in a bowl-shaped manner, alternately bending in opposite directions.
  • boards can be processed in a freshly sawn state in a particularly advantageous manner, since the boards have a particularly pronounced shrinkage behavior and thus ensure a correspondingly good seal of the wood composite.
  • the invention is therefore also characterized in that, despite a drying process taking place in the fitted state and the associated, natural shrinkage behavior of the wood in the boards according to the invention no translucent shrinkage intervals occur, but rather a particularly stable and gapless seal is guaranteed.
  • the board according to the invention is designed as a side board, that is to say it comes from the side regions of a tree trunk and accordingly has annual rings lying there.
  • Side boards are characterized by a particularly large shrinkage during the drying process, so that the formwork thus produced covers the surface to be formulated particularly tightly. Due to the shrinkage behavior of the side goods (keying), the overlapping areas of the boards are pressed together particularly firmly.
  • the boards according to the invention can also be made from prismatic goods or plywood.
  • the angle ⁇ enclosed by the corner recess is 90 ° to 179 °, preferably 90 ° to 110 °, particularly preferably 90 °, between the sides delimiting the corner recess.
  • the depth of the corner recess in the board thickness can therefore be the same across the depth of the corner recess in the board width (angle ⁇ equals 90 °) or continuously from the corner of the recess, in this case, the deepest point of the recess in the board width increase, but at the lowest point of the recess in the board width, that is, the corner of the corner recess, the depth of the recess in the board thickness must be 50% of the board thickness.
  • the geometry and dimensions of the two corner recesses of a board are preferably identical since otherwise, accuracy of fit when the boards are used as intended is only guaranteed if the boards are fitted to one another with the appropriate, precise orientation of their different narrow sides. In such a case, which also belongs to the invention, the boards cannot simply be fitted alternately into one another, but instead may have to be rotated once.
  • the invention relates to a board according to the invention, in which the depth of the corner recess in the board width is 3 mm to 25 mm (based on the board width on the back).
  • the invention provides a further embodiment of one of the boards mentioned, the thickness of the board being 18 mm to 40 mm.
  • the depth of the recess in the board thickness is accordingly preferably 9 mm to 20 mm.
  • Also preferred according to the invention are boards whose width (rear) is 80 mm to 200 mm and / or whose length is 1 m to 6.5 m.
  • the boards according to the invention are made from softwood and hardwood, in particular from spruce, fir, pine, larch or Douglas fir.
  • the corner recesses of the boards according to the invention are preferably produced by milling. According to the invention it can be provided that the boards mentioned are manufactured by means of circular saw technology. Boards made in this way point the advantage that there is no need for planing, since the boards produced by circular saw technology have a sufficiently calibrated surface. In addition, no branches are knocked out and there are no knotholes, since there is no planing.
  • the invention also relates to wood composites which contain at least one, but preferably at least two, of the boards according to the invention, for example wall or ceiling cladding.
  • FIG. 1 shows a board 1 according to the invention with a front side 2, a rear side 3 and narrow sides 4, the narrow sides 4 being formed by the narrow side regions 6.1, 6.2 and 6.3.
  • the back 3 has a width B R.
  • the front side 2 with the width B V has two corner recesses 5 in the transition area to the narrow sides 4, which extend over the entire length of the board 1 and act as a connection shape for a composite installation.
  • the two corner recesses 5 each have a depth T B based on the board width B R.
  • the width of the front B V is thus reduced by 2xT B compared to the width B R of the rear 3.
  • the corner recesses 5 have a board thickness D at their corner point 6.4, that is, at the lowest point of the corner recess 5 in board width B R , a depth T D (equal to the depth of corner recess 5 in board thickness D) of 50% of board thickness D. .
  • Figure 1 also shows the grain 7, that is, the structure and orientation of the annual rings.
  • the corner recesses 5 are oriented in the direction of the convex side of the grain 7.
  • FIG. 2 shows two boards according to the invention from FIG. 1 fitted into one another.
  • the boards 1 are mutually fitted into one another, that is to say in an alternating arrangement of the front and rear sides, so that the narrow side regions 6.1, 6.2 and 6.3 adjoin one another.
  • the wood composites produced with the boards according to the invention accordingly have alternating front and rear sides 3 of the boards on one side in each case.
  • FIG. 3 shows another, likewise preferred embodiment of the invention, in which the angle ⁇ between the narrow side areas 6.1 and 6.2 is approximately 100 °.
  • FIG. 4 shows two boards of FIG. 3 fitted into one another.
  • connection shapes shown in FIGS. 1 and 3 are also possible.
  • FIG. 5 shows, for example, a further embodiment of the invention, according to which the narrow side areas 6.1 and 6.3 do not run perpendicular to the front or back of the board, but rather both run at an identical angle ⁇ (less than 90 °) to the front or back.
  • the narrow side area 6.2 can run parallel or inclined to the front or back of the board. It is essential to the invention that at the corner 6.4 of the corner recess 5 the board thickness is 50% of the total board thickness and the dimension and geometry of the connection formations enables a mutual, precisely fitting arrangement of the boards according to the invention.
  • FIG. 6 shows two boards of FIG. 5 fitted into one another.
  • the first board is measured and fastened at an angle. All other boards are simply inserted and fastened without using a template and without measuring. Due to the shrinkage process during the drying process, the left board shown in FIGS. 2, 4 and 6 bends in such a way that the convex side of the curved (bowl) board faces the convex side of the grain. The right board shown in FIGS. 2, 4 and 6 bends in the opposite orientation due to the shrinkage behavior, so that a particularly firm connection between the boards is achieved.
  • the arrows in FIGS. 2, 4 and 6 indicate the orientation of the pressure of the connection formations on one another caused by the shrinkage behavior.

Abstract

The board (1) has narrow sides (4) with connections extending over their length. These connections are corner recesses (5) between the narrow sides and the forward side (2). Thus the width (BV) of this forward side is less than that of the backward one (3). The corner recesses lie in the direction of the convex side of the grain (7) of the board. The angle ( alpha ) enclosed by the corner recess is preferably between 90 degrees and 110 degrees . The depth of the corner recess into the board's width is between 3mm and 25mm. The thickness (D) of the board is between 18mm and 40mm. The width of the board is between 80mm and 200mm and its length between 1m and 6.5m. The board is made of coniferous wood, particularly spruce, pine, larch or Douglas fir.

Description

Die vorliegende Erfindung betrifft ein Brett, insbesondere ein Seitenbrett, beispielsweise zur Verschalung von Decken und Wänden.The present invention relates to a board, in particular a side board, for example for cladding ceilings and walls.

Die Verschalung von Decken oder Wänden mit Brettern ist bekannt. Herkömmlicherweise werden die zu verschalenden Wände mit einem Lattengerüst versehen und auf diesem die Bretter befestigt. Die dabei verwendeten Bretter weisen häufig Verbindungselemente zum Beispiel an einer ihrer Schmalseiten eine Nut und an der anderen Schmalseite eine Feder auf. Die Bretter lassen sich so ineinander einschieben und gewährleisten eine weitgehend lückenlose Verschalung. Die Verarbeitung von Nut und Feder aufweisenden Brettern erfordert jedoch eine hohe Paßgenauigkeit der Verbindungselemente, so daß verdrehte oder verbogene Bretter nicht oder nur unter Schwierigkeiten eingepaßt werden können. Zudem erfordert das Einpassen präzise manuelle Handarbeit, die insbesondere unter widrigen Umweltbedingungen, beispielsweise Kälte, mit Problemen behaftet ist.The cladding of ceilings or walls with boards is known. Conventionally, the walls to be shuttered are provided with a slatted frame and the boards are attached to this. The boards used here often have connecting elements, for example, a groove on one of their narrow sides and a tongue on the other narrow side. The boards can thus be pushed into one another and ensure largely seamless formwork. The processing of tongue and groove boards, however, requires a high accuracy of fit of the connecting elements, so that twisted or bent boards can not be fitted or only with difficulty. In addition, the fitting requires precise manual work, which is particularly problematic under adverse environmental conditions, such as cold.

Der vorliegenden Erfindung liegt somit das technische Problem Zugrunde, Bretter bereitzustellen, die die vorgenannten Nachteile überwinden, insbesondere einfach und kostengünstig herzustellen sind, in eingepaßtem Zustand stabil sind, sowie eine lückenlose Verschalung gewährleisten.The present invention is therefore based on the technical problem of providing boards that overcome the aforementioned disadvantages, in particular are simple and inexpensive to produce, are stable when fitted, and ensure complete formwork.

Das der Erfindung zugrundeliegende, technische Problem wird durch die Bereitstellung eines Brettes mit den Merkmalen des Hauptanspruches gelöst. Die Erfindung stellt insbesondere ein Brett mit einer Vorder-, einer Rückseite und zwei Stirn- und zwei Schmalseiten bereit, wobei die Schmalseiten jeweils eine sich über die ganze Länge des Brettes erstreckende Verbindungsausformung für eine Verbundverlegung aufweisen, und wobei die Verbindungsausformung als Eckausnehmung zwischen Schmalseite und Vorderseite ausgeführt ist, so daß die Breite der Vorderseite geringer als die der Rückseite ist.The technical problem underlying the invention is solved by providing a board with the features of the main claim. In particular, the invention provides a board with a front, a back and two end faces and two narrow sides, the narrow sides each having a connection shape for a composite installation that extends over the entire length of the board, and wherein the connection shape is a corner recess between the narrow side and Front is designed so that the width of the front is less than that of the back.

Im Zusammenhang der vorliegenden Erfindung werden unter Schmalseiten die Seiten eines länglichen Brettes verstanden, die die Breite begrenzen, während die Stirnseiten die Länge des Brettes begrenzen. Im Zusammenhang der vorliegenden Erfindung wird unter der Vorderseite eines Brettes die Seite verstanden, die durch die von den Schmalseiten ausgehenden Eckausnehmungen in ihrer Breite reduziert werden. Zwischen den Schmalseiten und der Rückseite werden keine derartigen Eckausnehmnungen ausgebildet. Unter einer Verbindungsausformung für eine Verbundverlegung ist die Ausgestaltung des Brettes zu verstehen, die eine stabile und lückenlose Anordnung der Bretter zueinander zu einem Holzverbund ermöglicht.In the context of the present invention, narrow sides are understood to mean the sides of an elongated board which limit the width, while the end faces limit the length of the board. In the context of the present invention, the front of a board is understood to mean the side that is reduced in width by the corner recesses emanating from the narrow sides. No such corner recesses are formed between the narrow sides and the back. A connection formation for a composite installation is to be understood as the design of the board, which is a stable and gapless arrangement the boards enable each other to form a wood composite.

Das erfindungsgemäße Brett weist also an beiden Schmalseiten auf derselben Brettseite, das heißt, der Vorderseite, jeweils eine sich über die gesamte Länge des Brettes erstreckende Eckausnehmung auf. Derartige Bretter lassen sich problemlos, beispielsweise mittels der Kreissägentechnik, in einem oder mehreren Arbeitsgängen herstellen, was sich insbesondere als vorteilhaft gegenüber der Herstellung von Nut und Feder aufweisenden Brettern erweist. Die erfindungsgemäßen Bretter werden wechselseitig, das heißt, die Vorderseite eines Brettes liegt in einer Ebene mit den Rückseiten der benachbarten Bretter und umgekehrt, eingepaßt, so daß die aufgrund der Eckausnehmungen gebildeten Brettbereiche überlappen und Übergriffsflächen bilden, die sich gegeneinander abdrücken und die zu verschalende Oberfläche abdecken. Anders als bei herkömmlichen, Nut und Feder aufweisenden Brettern können keine Paßprobleme entstehen, da die Ausnehmungen immer aufeinanderpassen.The board according to the invention thus has on both narrow sides on the same board side, that is to say the front side, in each case a corner recess which extends over the entire length of the board. Such boards can be produced without problems, for example by means of circular saw technology, in one or more work steps, which has proven to be particularly advantageous compared to the production of tongue and groove boards. The boards according to the invention are mutually fitted, that is, the front of a board lies in one plane with the backs of the adjacent boards and vice versa, so that the board areas formed on the basis of the corner recesses overlap and form overlapping surfaces which press against one another and the surface to be boarded cover. Unlike conventional, tongue and groove boards, there can be no fitting problems, since the recesses always match.

Bekanntermaßen führt das Trocknen von Brettern zu einem Schwundverhalten, das bei herkömmlichen Brettern besonders dann unerwünscht ist, wenn die Bretter bereits eingepaßt sind. In einem derartigen Fall treten nämlich lichtdurchlässige Schwundabstände auf. Die erfindungsgemäßen Bretter weisen demgegenüber den Vorteil auf, daß das natürliche, während des Trockenvorgangs auftretende Schwundverhalten zu einer besonders stabilen und undurchlässigen Verbindung der Bretter führt. Während des Trockenvorgangs biegen sich die Bretter, insbesondere bei der Verwendung von Brettern aus Seitenware, entgegen dem Krümmungsradius der Jahresringe. Bei entsprechender Anordnung der Ausnehmungen, das heißt, besonders bevorzugt in Richtung der konvexen Seite der Maserung, also der Jahresringe, drücken die durch die Eckausnehmungen entstandenen Übergriffsflächen aufeinander, da sich die einzelnen, wechselseitig verlegten Bretter schüsselförmig, jeweils alternierend in entgegengesetzter Orientierung verbiegen. In besonders vorteilhafter Weise können demgemäß Bretter in frisch gesägtem Zustand verarbeitet werden, da die Bretter ein besonders ausgeprägtes Schwundverhalten aufweisen und damit eine entsprechend gute Abdichtung des Holzverbundes gewährleisten. Der Wegfall des kosten- und zeitaufwendigen Trockenvorganges, der beispielsweise bei Nut und Feder aufweisenden Brettern notwendig ist, stellt eine weitere, besonders vorteilhafte Eigenschaft der Erfindung dar. Die Erfindung zeichnet sich also auch dadurch aus, daß trotz eines im eingepaßten Zustands stattfindenen Trockenvorganges und dem damit verbundenen, natürlichen Schwundverhalten des Holzes bei den erfindungsgemäßen Brettern keine lichtdurchlässigen Schwundabstände auftreten, sondern vielmehr eine besonders stabile und lückenlose Abdichtung gewährleistet ist.As is known, the drying of boards leads to a shrinkage behavior, which is particularly undesirable in conventional boards when the boards have already been fitted. In such a case, translucent fading distances occur. In contrast, the boards according to the invention have the advantage that the natural shrinkage behavior occurring during the drying process becomes particularly stable and impermeable Connection of the boards leads. During the drying process, especially when using boards made of side products, the boards bend against the radius of curvature of the annual rings. With an appropriate arrangement of the recesses, that is, particularly preferably in the direction of the convex side of the grain, i.e. the annual rings, the overlapping surfaces created by the corner recesses press against one another, since the individual, mutually laid boards bend in a bowl-shaped manner, alternately bending in opposite directions. Accordingly, boards can be processed in a freshly sawn state in a particularly advantageous manner, since the boards have a particularly pronounced shrinkage behavior and thus ensure a correspondingly good seal of the wood composite. The elimination of the costly and time-consuming drying process, which is necessary, for example, with tongue and groove boards, represents a further, particularly advantageous property of the invention. The invention is therefore also characterized in that, despite a drying process taking place in the fitted state and the associated, natural shrinkage behavior of the wood in the boards according to the invention no translucent shrinkage intervals occur, but rather a particularly stable and gapless seal is guaranteed.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen entnehmbar.Further advantageous embodiments of the invention can be found in the subclaims.

In einer bevorzugten Ausführungsform ist demgemäß vorgesehen, daß das erfindungsgemäße Brett als Seitenbrett ausgeführt ist, das heißt, aus den Seitenbereichen eines Baumstammes stammt und dementsprechend liegende Jahresringe aufweist. Seitenbretter zeichnen sich durch einen besonders großen Schwund während des Trockenvorganges aus, so daß die damit hergestellten Verschalungen die zu verschalende Oberfläche besonders dicht abdecken. Durch das Schwundverhalten der Seitenware (Schüsselung) werden die sich überlappenden Bereiche der Bretter besonders fest aufeinandergedrückt. Selbstverständlich können die erfindungsgemäßen Bretter jedoch auch aus prismierter Ware oder Sperrholz gefertigt werden.In a preferred embodiment it is accordingly provided that the board according to the invention is designed as a side board, that is to say it comes from the side regions of a tree trunk and accordingly has annual rings lying there. Side boards are characterized by a particularly large shrinkage during the drying process, so that the formwork thus produced covers the surface to be formulated particularly tightly. Due to the shrinkage behavior of the side goods (keying), the overlapping areas of the boards are pressed together particularly firmly. Of course, however, the boards according to the invention can also be made from prismatic goods or plywood.

Gemäß einer weiteren, bevorzugten Ausführungsform der Erfindung beträgt der durch die Eckausnehmung eingeschlossene Winkel α, das heißt der Winkel zwischen den die Eckausnehmung begrenzenden Seiten 90° bis 179°, vorzugsweise 90° bis 110°, besonders bevorzugt 90°. Die Tiefe der Eckausnehmung in der Brettdicke kann daher über die Tiefe der Eckausnehmung in der Brettbreite gleich sein (Winkel α gleich 90°) oder von der Ecke der Ausnehmung, das heißt in diesem Fall, dem tiefsten Punkt der Ausnehmung in der Brettbreite an, stetig zunehmen, wobei jedoch am besagten tiefsten Punkt der Ausnehmung in der Brettbreite, das heißt, der Ecke der Eckausnehmung, die Tiefe der Ausnehmung in der Brettdicke 50 % der Brettdicke betragen muß. Die Geometrie und Abmessungen der beiden Eckausnehmungen eines Brettes sind vorzugsweise identisch, da andernfalls Paßgenauigkeit bei bestimmungsgemäßer Verwendung der Bretter nur gewährleistet ist, wenn die Bretter unter entsprechender, paßgenauer Orientierung ihrer verschiedenen Schmalseiten zueinander eingepaßt werden. Die Bretter können in einem solchen, auch zur Erfindung gehörenden Fall, nicht einfach alternierend ineinander eingepaßt werden, sondern müssen gegebenenfalls einmal gedreht werden.According to a further preferred embodiment of the invention, the angle α enclosed by the corner recess is 90 ° to 179 °, preferably 90 ° to 110 °, particularly preferably 90 °, between the sides delimiting the corner recess. The depth of the corner recess in the board thickness can therefore be the same across the depth of the corner recess in the board width (angle α equals 90 °) or continuously from the corner of the recess, in this case, the deepest point of the recess in the board width increase, but at the lowest point of the recess in the board width, that is, the corner of the corner recess, the depth of the recess in the board thickness must be 50% of the board thickness. The geometry and dimensions of the two corner recesses of a board are preferably identical since otherwise, accuracy of fit when the boards are used as intended is only guaranteed if the boards are fitted to one another with the appropriate, precise orientation of their different narrow sides. In such a case, which also belongs to the invention, the boards cannot simply be fitted alternately into one another, but instead may have to be rotated once.

In einer weiteren, besonders bevorzugten Ausführungsform betrifft die Erfindung ein erfindungsgemäßes Brett, bei dem die Tiefe der Eckausnehmung in der Brettbreite 3 mm bis 25 mm beträgt (bezogen auf die Brettbreite der Rückseite). Die Erfindung sieht eine weitere Ausführungsform eines der genannten Bretter vor, wobei die Dicke des Brettes 18 mm bis 40 mm beträgt. Die Tiefe der Ausnehmung in der Brettdicke beträgt demgemäß bevorzugt 9 mm bis 20 mm. Erfindungsgemäß ebenfalls bevorzugt sind Bretter, deren Breite (Rückseite) 80 mm bis 200 mm und/oder deren Länge 1 m bis 6,5 m beträgt.In a further, particularly preferred embodiment, the invention relates to a board according to the invention, in which the depth of the corner recess in the board width is 3 mm to 25 mm (based on the board width on the back). The invention provides a further embodiment of one of the boards mentioned, the thickness of the board being 18 mm to 40 mm. The depth of the recess in the board thickness is accordingly preferably 9 mm to 20 mm. Also preferred according to the invention are boards whose width (rear) is 80 mm to 200 mm and / or whose length is 1 m to 6.5 m.

In besonders bevorzugter Weise ist vorgesehen, die erfindungsgemäßen Bretter aus Nadelholz und Laubholz, insbesondere aus Holz der Fichte, Tanne, Kiefer, Lärche oder Douglasie zu fertigen.In a particularly preferred manner, the boards according to the invention are made from softwood and hardwood, in particular from spruce, fir, pine, larch or Douglas fir.

In bevorzugter Weise werden die Eckausnehmungen der erfindungsgemäßen Bretter durch Fräsen hergestellt. Erfindungsgemäß kann vorgesehen werden, daß die genannten Bretter mittels der Kreissägentechnik hergestellt werden. Derartig hergestellte Bretter weisen den Vorteil auf, daß ein Hobeln entfällt, da die durch die Kreissägentechnik hergestellten Bretter eine ausreichend kalibrierte Oberfläche aufweisen. Zudem werden keine Äste ausgeschlagen und es entstehen keine Astlöcher, da das Hobeln entfällt.The corner recesses of the boards according to the invention are preferably produced by milling. According to the invention it can be provided that the boards mentioned are manufactured by means of circular saw technology. Boards made in this way point the advantage that there is no need for planing, since the boards produced by circular saw technology have a sufficiently calibrated surface. In addition, no branches are knocked out and there are no knotholes, since there is no planing.

Schließlich betrifft die Erfindung auch Holzverbunde, die mindestens eines, bevorzugt jedoch mindestens zwei der erfindungsgemäßen Bretter enthalten, zum Beispiel Wand- oder Deckenverschalungen.Finally, the invention also relates to wood composites which contain at least one, but preferably at least two, of the boards according to the invention, for example wall or ceiling cladding.

Die vorliegende Erfindung wird anhand der Figuren näher erläutert.The present invention is explained in more detail with reference to the figures.

Die Figuren zeigen:

Figur 1
einen Querschnitt durch eine besonders bevorzugte Ausführung des erfindungsgemäßen Brettes.
Figur 2
einen Querschnitt durch zwei aneinandergepaßte erfindungsgemäße Bretter nach Figur 1.
Figur 3
einen Querschnitt durch eine weitere, bevorzugte Ausführungsform der Erfindung.
Figur 4
einen Querschnitt durch zwei aneinandergepaßte, erfindungsgemäße Bretter nach Figur 3.
Figur 5
einen Querschnitt durch eine weitere, bevorzugte Ausführungsform der Erfindung.
Figur 6
einen Querschnitt durch zwei aneinandergepaßte, erfindungsgemäße Bretter nach Figur 5.
The figures show:
Figure 1
a cross section through a particularly preferred embodiment of the board according to the invention.
Figure 2
2 shows a cross section through two matched boards according to the invention according to FIG. 1.
Figure 3
a cross section through a further preferred embodiment of the invention.
Figure 4
3 shows a cross section through two matched boards according to the invention according to FIG. 3.
Figure 5
a cross section through a further preferred embodiment of the invention.
Figure 6
a cross section through two matched boards according to the invention according to Figure 5.

Die Figur 1 zeigt ein erfindungsgemäßes Brett 1 mit einer Vorderseite 2, einer Rückseite 3 und Schmalseiten 4, wobei die Schmalseiten 4 von den Schmalseitenbereichen 6.1, 6.2 und 6.3 gebildet werden. Die Rückseite 3 weist eine Breite BR auf. Die Vorderseite 2 mit der Breite BV weist im Übergangsbereich zu den Schmalseiten 4 zwei Eckausnehmungen 5 auf, die sich über die ganze Länge des Brettes 1 erstrecken und als Verbindungsausformung für eine Verbundverlegung fungieren. Die beiden Eckausnehmungen 5 weisen jeweils, bezogen auf die Brettbreite BR, die Tiefe TB auf. Die Breite der Vorderseite BV ist also um 2xTB gegenüber der Breite BR der Rückseite 3 vermindert. Die Eckausnehmungen 5 weisen in der Brettdicke D an ihrem Eckpunkt 6.4, das heißt, am tiefsten Punkt der Eckausnehmung 5 in der Brettbreite BR, eine Tiefe TD (gleich Tiefe der Eckausnehmung 5 in der Brettdicke D) von 50 % der Brettdicke D auf. Die beiden an den Schmalseiten 4 angeordneten Eckausnehmungen 5 weisen einen Winkel α = 90° zwischen den die Eckausnehmung begrenzenden Schmalseitenbereichen 6.1 und 6.2 auf.FIG. 1 shows a board 1 according to the invention with a front side 2, a rear side 3 and narrow sides 4, the narrow sides 4 being formed by the narrow side regions 6.1, 6.2 and 6.3. The back 3 has a width B R. The front side 2 with the width B V has two corner recesses 5 in the transition area to the narrow sides 4, which extend over the entire length of the board 1 and act as a connection shape for a composite installation. The two corner recesses 5 each have a depth T B based on the board width B R. The width of the front B V is thus reduced by 2xT B compared to the width B R of the rear 3. The corner recesses 5 have a board thickness D at their corner point 6.4, that is, at the lowest point of the corner recess 5 in board width B R , a depth T D (equal to the depth of corner recess 5 in board thickness D) of 50% of board thickness D. . The two corner recesses 5 arranged on the narrow sides 4 have an angle α = 90 ° between the narrow side regions 6.1 and 6.2 delimiting the corner recess.

Die Figur 1 läßt ferner die Maserung 7, das heißt, die Struktur und Orientierung der Jahresringe erkennen. Die Eckausnehmungen 5 sind in Richtung auf die konvexe Seite der Maserung 7 orientiert.Figure 1 also shows the grain 7, that is, the structure and orientation of the annual rings. The corner recesses 5 are oriented in the direction of the convex side of the grain 7.

Die Figur 2 zeigt zwei ineinander eingepaßte, erfindungsgemäße Bretter der Figur 1. Die Bretter 1 werden wechselseitig, das heißt, in alternierender Anordnung der Vorder- und Rückseiten in einer Ebene, ineinander eingepaßt, so daß die Schmalseitenbereiche 6.1, 6.2 und 6.3 aneinander angrenzen. Die mit den erfindungsgemäßen Brettern hergestellten Holzverbunde weisen demgemäß auf jeweils einer Seite alternierend Vorder- 2 und Rückseiten 3 der Bretter auf.FIG. 2 shows two boards according to the invention from FIG. 1 fitted into one another. The boards 1 are mutually fitted into one another, that is to say in an alternating arrangement of the front and rear sides, so that the narrow side regions 6.1, 6.2 and 6.3 adjoin one another. The wood composites produced with the boards according to the invention accordingly have alternating front and rear sides 3 of the boards on one side in each case.

Die Figur 3 zeigt eine andere, ebenfalls bevorzugte Ausführungsform der Erfindung, in der der Winkel α zwischen den Schmalseitenbereichen 6.1 und 6.2 etwa 100° beträgt.FIG. 3 shows another, likewise preferred embodiment of the invention, in which the angle α between the narrow side areas 6.1 and 6.2 is approximately 100 °.

Die Figur 4 zeigt zwei ineinander eingepaßte Bretter der Figur 3.FIG. 4 shows two boards of FIG. 3 fitted into one another.

Selbstverständlich sind auch andere als die in Figur 1 und 3 gezeigten Geometrien der Verbindungsausformungen möglich.Of course, other than the geometries of the connection shapes shown in FIGS. 1 and 3 are also possible.

Die Figur 5 zeigt beispielsweise eine weitere Ausführungsform der Erfindung, nach der die Schmalseitenbereiche 6.1 und 6.3 nicht senkrecht zur Vorderbeziehungsweise Rückseite des Brettes verlaufen, sondern beide in einem identischen Winkel β (kleiner 90°) zur Vorder- beziehungsweise Rückseite verlaufen. Der Schmalseitenbereich 6.2 kann dabei parallel oder geneigt zur Vorder- beziehungsweise Rückseite des Brettes verlaufen. Erfindungswesentlich ist, daß an der Ecke 6.4 der Eckausnehmung 5 die Brettdicke 50 % der Gesamtbrettdicke beträgt und die Abmessung und Geometrie der Verbindungsausformungen ein wechselseitiges, paßgenaues Anordnen der erfindungsgemäßen Bretter ermöglicht.FIG. 5 shows, for example, a further embodiment of the invention, according to which the narrow side areas 6.1 and 6.3 do not run perpendicular to the front or back of the board, but rather both run at an identical angle β (less than 90 °) to the front or back. The narrow side area 6.2 can run parallel or inclined to the front or back of the board. It is essential to the invention that at the corner 6.4 of the corner recess 5 the board thickness is 50% of the total board thickness and the dimension and geometry of the connection formations enables a mutual, precisely fitting arrangement of the boards according to the invention.

Die Figur 6 zeigt zwei ineinander eingepaßte Bretter der Figur 5.FIG. 6 shows two boards of FIG. 5 fitted into one another.

Bei der Verschalung mit den erfindungsgemäßen Brettern wird das erste Brett winkelgerecht eingemessen und befestigt. Alle weiteren Bretter werden ohne Verwendung einer Schablone und ohne Messen einfach eingeschoben und befestigt. Durch den Schwundvorgang während des Trockenvorganges biegt sich das in den Figuren 2, 4 und 6 dargestellte, linke Brett ein, und zwar so, daß die konvexe Seite des gebogenen (geschüsselten) Brettes der konvexen Seite der Maserung zugewandt ist. Das in den Figuren 2, 4 und 6 dargestellte, rechte Brett krümmt sich durch das Schwundverhalten in entgegengesetzter Orientierung ein, so daß eine besonders feste Verbindung zwischen den Brettern zustande kommt. Die Pfeile in den Figuren 2, 4 und 6 geben die durch das Schwundverhalten bewirkte Orientierung des Druckes der Verbindungsausformungen aufeinander an.When formwork with the boards according to the invention, the first board is measured and fastened at an angle. All other boards are simply inserted and fastened without using a template and without measuring. Due to the shrinkage process during the drying process, the left board shown in FIGS. 2, 4 and 6 bends in such a way that the convex side of the curved (bowl) board faces the convex side of the grain. The right board shown in FIGS. 2, 4 and 6 bends in the opposite orientation due to the shrinkage behavior, so that a particularly firm connection between the boards is achieved. The arrows in FIGS. 2, 4 and 6 indicate the orientation of the pressure of the connection formations on one another caused by the shrinkage behavior.

Claims (12)

Brett mit einer Vorder-, einer Rück-, zwei Stirn- und zwei Schmalseiten, wobei die Schmalseiten jeweils eine sich über die gesamte Länge des Brettes erstreckende Verbindungsausformung für eine Verbundverlegung aufweisen, dadurch gekennzeichnet, daß die Verbindungsausformungen als Eckausnehmungen (5) zwischen den Schmalseiten (4) und der Vorderseite (2) ausgeführt sind, so daß die Breite der Vorderseite (BV) geringer als die der Rückseite (BR) ist.Board with a front, a back, two end faces and two narrow sides, the narrow sides each having a connection shape for a composite installation extending over the entire length of the board, characterized in that the connection shapes as corner recesses (5) between the narrow sides (4) and the front (2) are designed so that the width of the front (B V ) is less than that of the rear (B R ). Brett nach Anspruch 1, dadurch gekennzeichnet, daß das Brett (1) aus Seitenware hergestellt ist.Board according to claim 1, characterized in that the board (1) is made from side goods. Brett nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Eckausnehmungen (5) in Richtung der konvexen Seite der Maserung (7) des Brettes (1) orientiert sind.Board according to one of claims 1 or 2, characterized in that the corner recesses (5) are oriented in the direction of the convex side of the grain (7) of the board (1). Brett nach einem der Ansprüch 1 bis 3, dadurch gekennzeichnet, daß der durch die Eckausnehmung (5) eingeschlossene Winkel (α) 90° bis 179°, vorzugsweise 90° bis 110° beträgt.Board according to one of claims 1 to 3, characterized in that the angle (α) enclosed by the corner recess (5) is 90 ° to 179 °, preferably 90 ° to 110 °. Brett nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Tiefe (TB) der Eckausnehmung (5) in der Brettbreite (BR) 3 mm bis 25 mm beträgt.Board according to one of claims 1 to 4, characterized in that the depth (T B ) of the Corner recess (5) in the board width (B R ) is 3 mm to 25 mm. Brett nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Dicke (D) des Brettes (1) 18 mm bis 40 mm beträgt.Board according to one of claims 1 to 5, characterized in that the thickness (D) of the board (1) is 18 mm to 40 mm. Brett nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Breite (BR) des Brettes (1) 80 mm bis 200 mm beträgt.Board according to one of claims 1 to 6, characterized in that the width (B R ) of the board (1) is 80 mm to 200 mm. Brett nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Länge des Brettes (1) 1 m bis 6,5 m beträgt.Board according to one of claims 1 to 7, characterized in that the length of the board (1) is 1 m to 6.5 m. Brett nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Brett (1) aus Nadelholz, insbesondere Fichte, Tanne, Kiefer, Lärche oder Douglasie hergestellt ist.Board according to one of claims 1 to 8, characterized in that the board (1) is made of coniferous wood, in particular spruce, fir, pine, larch or Douglas fir. Brett nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Eckausnehmungen (5) durch Fräsen hergestellt sind.Board according to one of claims 1 to 9, characterized in that the corner recesses (5) are made by milling. Brett nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß dieses in einem Arbeitsgang mittels der Kreissägentechnik hergestellt ist und eine ausreichend kalibrierte Oberfläche aufweist.Board according to one of claims 1 to 10, characterized in that it is produced in one operation by means of circular saw technology and has a sufficiently calibrated surface. Holzverbund aus mehreren Brettern, dadurch gekennzeichnet, daß mindestens eins, vorzugweise mindestens zwei Bretter nach einem der vorhergehenden Ansprüche in dem Holzverbund enthalten sind.Wood composite from several boards, characterized in that at least one, preferably at least two boards according to one of the preceding claims are contained in the wood composite.
EP97102025A 1996-02-15 1997-02-08 Board with improved properties Withdrawn EP0790369A1 (en)

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DE29602643U DE29602643U1 (en) 1996-02-15 1996-02-15 Board with improved properties
DE29602643U 1996-02-15

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Publication number Priority date Publication date Assignee Title
US6497079B1 (en) 2000-03-07 2002-12-24 E.F.P. Floor Products Gmbh Mechanical panel connection
US6526719B2 (en) 2000-03-07 2003-03-04 E.F.P. Floor Products Gmbh Mechanical panel connection
US6647689B2 (en) 2002-02-18 2003-11-18 E.F.P. Floor Products Gmbh Panel, particularly a flooring panel

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
JP2016164342A (en) * 2015-03-06 2016-09-08 アキレス株式会社 Heat insulation panel

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US4266382A (en) * 1979-05-18 1981-05-12 Champion International Corporation Hardboard panel siding
DE8913736U1 (en) * 1989-11-21 1990-04-19 Vente-Holz Gmbh, 5950 Finnentrop, De
US5050653A (en) * 1990-06-01 1991-09-24 Brown Donald W Laminated wood process for using waste offcut strips and products thereof
JPH05248074A (en) * 1992-03-04 1993-09-24 Eidai Co Ltd Combined decoration plate
JPH0842045A (en) * 1994-07-27 1996-02-13 Misawa Homes Co Ltd Ceiling panel

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Publication number Priority date Publication date Assignee Title
US4266382A (en) * 1979-05-18 1981-05-12 Champion International Corporation Hardboard panel siding
DE8913736U1 (en) * 1989-11-21 1990-04-19 Vente-Holz Gmbh, 5950 Finnentrop, De
US5050653A (en) * 1990-06-01 1991-09-24 Brown Donald W Laminated wood process for using waste offcut strips and products thereof
JPH05248074A (en) * 1992-03-04 1993-09-24 Eidai Co Ltd Combined decoration plate
JPH0842045A (en) * 1994-07-27 1996-02-13 Misawa Homes Co Ltd Ceiling panel

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497079B1 (en) 2000-03-07 2002-12-24 E.F.P. Floor Products Gmbh Mechanical panel connection
US6526719B2 (en) 2000-03-07 2003-03-04 E.F.P. Floor Products Gmbh Mechanical panel connection
US6647689B2 (en) 2002-02-18 2003-11-18 E.F.P. Floor Products Gmbh Panel, particularly a flooring panel

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NO970640L (en) 1997-08-18
DE29602643U1 (en) 1996-04-11
NO970640D0 (en) 1997-02-12
JPH108634A (en) 1998-01-13

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