Patent ID: 6324803
Filing Date: 2001-12-04
Classification: E04F,Y10T

Abstract:
A building panel having a first edge and a second edge and a mechanical locking system for locking the first edge of the building panel to an identical building panel, the mechanical locking system comprising:a connector on the first edge and the second edge for forming a first mechanical connection locking the first edge to an edge on the identical building panel in a first direction at right angles to a principal plane of the panels, wherein the edge on the identical building panel is adapted to be substantially identical to the second edge of the building panel;a locking device arranged on an underside of the first and the second edges, the locking device forming a second mechanical connection adapted to lock said first edge to said edge of the identical building panel to each other in a second direction parallel to the principal plane of the panels and at right angles to the edges;said locking device comprises:a locking groove along the second edge and a locking strip along the first edge;the locking groove extending parallel to and open at a rear side of the second edge; andthe locking strip made from a material different than that of the building panel and extending throughout substantially an entire length of the first edge and provided with a locking element projecting from the locking strip and adapted to project into locking groove of the identical panel;the rear side of the building panel has a dovetail gripping edge with opposing outer gripping sides and extending substantially an entire length of the first edge; andthe locking strip is mechanically connected to the dovetail gripping edge by having a tongue or a lip, which extend from the strip to clamp against the opposing outer gripping sides of the dovetail gripping edge.