Composed element, multi-layered board and panel-shaped...

A - Human Necessities – 47 – B

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A47B 47/04 (2006.01) A47B 96/20 (2006.01) F16B 12/26 (2006.01) B27N 3/02 (2006.01) B32B 21/00 (2006.01)

Patent

CA 2741593

Composed element, wherein this composed element comprises at least two panel- shaped elements (2-3), which substantially are formed from a board material; wherein said panel-shaped elements (2-3) are interconnected at an angle by means of coupling means comprising a tongue (13) and a groove (14), which coupling means substantially are made as profiled parts in the board material; and wherein said coupling means also comprise locking elements (15-16), which, in coupled condition, prevent the moving apart of the tongue and groove, characterized in that the panel-shaped elements (2-3) are formed on the basis of board material in the form of particle board consisting of two or more layers, which layers, in respect to the average fineness of the particles, show a different degree of fineness, respectively a basic layer (138, 139) with coarser particles, more particularly chips, and at least one outer layer (136, 137), or at least a more outward-situated layer, which is of a finer composition than the composition of the basic layer (138, 139), in other words, with particles, chips, respectively, which on average are finer.

La présente invention concerne un élément composite, lequel comprend au moins deux éléments (2-3) en forme de panneau essentiellement réalisés à partir d'un matériau en panneau. Ces éléments (2-3) de type panneau sont reliés entre eux en formant un angle au moyen d'éléments de raccordement comprenant une languette (13) et une rainure (14), ces éléments de raccordement se présentent essentiellement comme des éléments profilés dans le matériau en panneau; les moyens de raccordement comprennent également des éléments de verrouillage (15-16) qui, à l'état raccordé, empêche le déplacement de la languette et de la rainure. L'élément composite se caractérise en ce que les éléments (2-3) en forme de panneau sont formés sur la base d'un matériau en panneau se présentant sous la forme d'un panneau de particules constitué d'au moins deux couches, lesquelles couches, en fonction de la finesse moyenne des particules, présentent un degré de finesse différent, respectivement une couche de base (138, 139) avec des particules plus grossières, plus particulièrement des copeaux, et au moins une couche extérieure (136, 137), ou au moins une couche située plus à l'extérieur dont la composition est plus fine que la composition de la couche de base (138, 139), en d'autres termes, avec des particules, des copeaux, respectivement, qui sont en moyenne plus fins.

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