| 摘要 |
Hard panels formed from a wood-based material and having a decorative layer for floor coverings are provided, at least on two opposite edges, with coupling devices made in one piece with the panels wherein similar panels may be coupled together to form a floor covering, wherein these coupling devices provide for an interlocking in a direction perpendicular to the plane of coupled panels, as well as in a direction perpendicular to the edges concerned and parallel to the plane of coupled panels. These coupling devices are constituted of a tongue and a groove. The top side of the tongue has a protrusion that cooperates with a meshing recess located in the lower side of the upper lip of the groove of the coupling devices, and a portion extending generally parallel with the plane of the panel to form a contact surface cooperating with the lower side of the upper lip of the groove. |
| 主权项 |
1. A floor panel for forming a floor covering, wherein the floor panel is a laminate floor panel made of a board made from wood, upon which one or several layers, including a decorative layer, are provided;
wherein the floor panel is provided, at least at two opposite edges, with coupling parts made in one piece with the floor panel, as a result of which several of such floor panels can be mutually coupled to one another, wherein said coupling parts, in a coupled situation, provide for an interlocking in a direction perpendicular to a plane of the floor covering, as well as in a direction perpendicular to the edges concerned and parallel to the plane of the floor covering, wherein said coupling parts comprise a tongue and a groove, said groove being bordered by an upper lip and a lower lip, the distal end of the upper lip defining a first vertical plane (V1), and said lower lip extending further than the distal end of the upper lip; wherein said coupling parts comprise first cooperating surfaces, on the top side of the tongue and the bottom side of the upper lip respectively, said first cooperating surfaces, in the coupled situation, working in conjunction with one another and forming a first cooperating zone, and second cooperating surfaces, on an interlocking part that is situated on the lower lip, past the distal end of the upper lip, and on an opposite part of the other floor panel respectively, said second cooperating surfaces, in the coupled situation, working in conjunction with one another and forming a second cooperating zone; wherein the top side of said interlocking part defines a first horizontal level (N1), said first horizontal level (N1) intersecting the edge with the groove at a point situated proximally from said first vertical plane (V1), with respect to the edge of the groove; wherein said first cooperating zone is situated above said first horizontal level (N1); and wherein the bottom side of the edge with the tongue comprises a substantially flat portion, which is situated below said first horizontal level (N1). |
