Building Panel With Compressed Edges And Method Of Making Same
AssigneeValinge Aluminium AB
InventorDarko Pervan
Life of this patent
Estimating the term…
Abstract
Floorboards comprising a core and a surface layer with curved edge portions, which are formed by a compression of the core.
Claims20
A floorboard comprising:
- a locking system,
- a wood fiber based core, and
- a surface layer arranged on an upper side of the core, outer flat parts of the surface layer constituting a floor surface in a horizontal plane, a plane perpendicular to the horizontal plane and at the outer edge of the surface layer constituting a vertical plane, the floorboard has an edge portion with an edge surface which is located under the horizontal plane, the edge surface at the vertical plane is at a distance from the horizontal plane which constitutes an edge depth and which exceeds the thickness of the surface layer,
- wherein the floor surface and the edge surface are made in one piece of the same material, a part of the core in the edge portion under the edge surface adjacent to the vertical plane and at a vertical distance from the edge surface, has a higher density than a part of the core under the floor surface adjacent to the edge portion and at the same vertical distance from the floor surface.
A method to make a floorboard, with a locking system, a wood fiber based core and a surface layer arranged on the upper side of the core, the outer flat parts of the surface layer constituting a floor surface in a horizontal plane, the floorboard has an edge portion with an edge surface which is located under the horizontal plane wherein the surface layer is applied on the core to form a floor element,
- the floor element is cut into floor panels,
- a pressure is applied on the surface of an edge portion of the floor panel such that the core under the surface layer is compressed and the surface layer is permanently bended towards a rear side.
A method of making a building panel, with a wood fiber based core and a surface layer arranged on the upper side of the core, the outer flat parts of the surface layer constituting a panel surface and a horizontal plane, the building panel has an edge portion with an edge surface which is located under the horizontal plane wherein,
- the surface layer is applied on the core to form a building element,
- the building element is cut into building panels,
- a pressure is applied on the surface of an edge portion of the building panel such that the core under the surface layer is compressed and the surface layer is permanently bended towards the rear side of the core.
Dependencies are inferred from the claim text.