Patent ID: 7908815
Filing Date: 2011-03-22
Classification: E04B,E04F,Y10T

Abstract:
1. A set of essentially identical floor panels, each of the floor panels comprising first and second connectors which are integrated with the floor panels and configured to connect a first floor panel to a second floor panel so that upper joint edges of said first and second floor panels in the connected state define a vertical plane, the first connector comprising an upwardly directed locking element at one of the floor panels cooperating with a locking groove in the other of said floor panels for connecting said first floor panel with said second floor panel in a horizontal direction perpendicular to said vertical plane, the second connector comprising a flexible tongue of molded plastic in a displacement groove in an edge of one of the floor panels, the displacement groove including an upper wall, a lower wall, and a side wall connecting the upper and lower walls, the flexible tongue is configured to cooperate with a tongue groove in the other of said floor panels for locking the floor panels together in a vertical direction parallel to the vertical plane, the flexible tongue is displaceable in the horizontal direction in the displacement groove, the tongue comprising at least two protrusions at a first long edge of the tongue, bendable in the horizontal plane, and extending essentially in the horizontal direction, the first long edge of the tongue is in the displacement groove and faces the sidewall, and the tongue has a second long edge which in the connected state extends outside the displacement groove beyond the vertical plane and the outer edge of the second long edge is essentially straight over substantially the whole length of the tongue.