Floor panel for forming a floor covering
AssigneeFlooring Industries Limited, Sarl
InventorPieter DEVOS
Life of this patent
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Abstract
A floor panel for forming a floor covering comprises a substrate consisting of at least two substrate layers differing in density and, on at least one pair of opposite edges, is provided with coupling parts of the so-called push-lock type. Vertically active locking surfaces, where they cooperate in the coupled condition of two of such floor panels, define a tangent line which is horizontal or does not deviate more than 50 degrees from the horizontal. The locking surfaces are situated closer to the upper side of the first substrate layer than to the lower side of the first substrate layer.
Claims20
A floor panel for forming a floor covering, wherein said floor panel comprises:
- a substrate and a top layer located above the substrate;
- wherein the floor panel comprises coupling parts on at least two opposite edges, which coupling parts allow that said floor panel can be coupled to another of said floor panel by means of a turning movement of one floor panel in respect to the other floor panel;
- wherein these coupling parts, in the coupled condition of two of such floor panels, effect a locking in a first direction in a plane of the floor panels and perpendicular to said edges, as well as effect a locking in a second direction transverse to the plane of the floor panels;
- wherein the coupling parts are made as a tongue and a groove;
- wherein the substrate comprises a first substrate layer and a second substrate layer located above the first substrate layer;
- wherein the first substrate layer comprises a thermoplastic material and a filling material;
- wherein the first substrate layer constitutes more than half of the thickness of the floor panel;
- wherein the first substrate layer is foamed;
- wherein the second substrate layer comprises a thermoplastic material and plasticizers;
- wherein the coupling parts are manufactured from the material of the substrate and are made in one piece therewith.
Dependencies are inferred from the claim text.