Patent ID: 8438814
Filing Date: 2013-05-14
Classification: B32B,E04C,E04F,F16B,Y10T

Abstract:
1. A floor covering, comprising a plurality of floor panels; each panel comprising coupling elements on at least two opposite edges made in one piece with the panel, said coupling elements enabling said panels to be mutually coupled to one another, wherein said coupling elements enable interlocking of the edges in a direction perpendicular to a plane of the coupled panels, as well as in a direction perpendicular to the edges concerned, and parallel to a plane of the coupled floor panels; said coupling elements comprising a tongue and a groove, said groove being bordered by an upper lip and a lower lip, and said coupling elements comprising coupling parts which enable interlocking of the edges in a horizontal direction; said upper and lower lips having lip upper and lip lower abutment surfaces, respectively, and said tongue having tongue upper and tongue lower abutment surfaces on an upper and lower side of the tongue, respectively; wherein said upper lip extends beyond said lower lip; wherein in coupled condition of two of such panels, said lip upper and said lip lower abutment surfaces in a vertical direction engage respectively the tongue upper and tongue lower abutment surfaces, thereby keeping the coupled panels in a same general plane; and wherein said coupling elements are configured such that two adjacent coupled panels are mutually disconnectable by rotating their bottom sides towards one another, said configuration including an arcuate area on a tongue upper side that engages and rotates relative to the lip upper abutment surface during uncoupling of the panels and a free space between a free end of the lower lip of one panel and an opposing part under the tongue of the other panel.