Mechanical locking system for floor panels
AssigneeCeraloc Innovation AB
InventorDarko Pervan
Life of this patent
Estimating the term…
Abstract
Building panels provided with a locking system for vertical and horizontal locking of a first edge and a second edge of adjacent panels. The locking system includes a displaceable tongue at least partly arranged in a displacement groove, a tongue groove, a cavity provided in a strip at the first edge, and a protrusion extending downwards at the second edge. The displaceable tongue is arranged to be displaced at least partly into the tongue groove during locking, and wherein the protrusion is arranged to be located in least a portion of the cavity when the panels are locked vertically and horizontally.
Claims19
Floor panels comprising a plastic wear layer and one or several plastic core layers, the plastic wear layer and the one or several plastic core layers comprising a plastic material,
- wherein one plastic core layer of the one or several plastic core layers comprises several essentially vertical flexing grooves, the essentially vertical flexing grooves being formed at a rear side of the one plastic core layer,
- wherein the essentially vertical flexing grooves have a vertical extension of at least about one third of a thickness of the one plastic core layer,
- wherein said plastic wear layer comprises polyvinyl chloride,
- wherein said one or several plastic core layers comprise polyvinyl chloride and fillers, and
- wherein the essentially vertical flexing grooves are curved at edges of the floor panels along a longitudinal direction.
Floor panels comprising a plastic wear layer and one or several plastic core layers, the plastic wear layer and the one or several plastic core layers comprising a plastic material,
- wherein the floor panels each have a total thickness of less than 3 mm,
- wherein one plastic core layer of the one or several plastic core layers comprises several essentially vertical flexing grooves, the essentially vertical flexing grooves being formed at a rear side of the one plastic core layer,
- wherein the essentially vertical flexing grooves have a vertical extension of about one third of a thickness of the one plastic core layer,
- wherein said plastic wear layer comprises polyvinyl chloride, and
- wherein said one or several plastic core layers comprise polyvinyl chloride and fillers,
- wherein the floor panels are configured to be glued to a subfloor.
Floor panels comprising a plastic wear layer and one or several plastic core layers, the plastic wear layer and the one or several plastic core layers comprising a plastic material,
- wherein one plastic core layer of the one or several plastic core layers comprises several essentially vertical flexing grooves which have a longest dimension along a first direction, the essentially vertical flexing grooves being formed at a rear side of the one plastic core layer, wherein opposing surfaces of each of the several essentially vertical flexing grooves diverge along a vertical direction toward the rear side of the one plastic layer and away from each other along the first direction,
- wherein the essentially vertical flexing grooves have a vertical extension of at least about one third of a thickness of the one plastic core layer,
- wherein said plastic wear layer comprises polyvinyl chloride,
- wherein said one or several plastic core layers comprise polyvinyl chloride and fillers.
Dependencies are inferred from the claim text.