Patent ID: 6729091
Filing Date: 2004-05-04
Classification: E04F

Abstract:
Floor element, which is mainly in the form of a board with triangular, quadratic, rectangular, rhomboidal or polygonal shape as seen from above, which floor element is provided with edges, a lower side and a decorative upper layer, and two or more floor elements intended to be joined via tongue and groove characterized, in that said floor element at all edges are provided with holes, which holes extend inwards from the edge mainly parallel to the decorative upper layer, that the holes are arranged at a predetermined distance from the decorative upper layer and at a predetermined distance from the closest corner between two adjacent edges, said holes being intended to each receive one part of a guiding means, wherebya) said floor element has four edges having the same length and each edge being provided with a group of holes, said group of holes being arranged at a mutual distance of N and with a distance of N/2 between said holes and a closest corner between two adjoining edges, whereby the edge as a length of 2N, or b) said floor element has two opposite edges having a length greater than remaining two edges, each shorter edge being provided with a group of two holes, which holes in each group of holes are arranged at a mutual distance of N and with a distance of N/2 between said holes and a closest corner between two adjoining edges, each longer edge being provided with a group of three or more holes of which the outermost holes are arranged at a distance of L/2 from respective closest corner between two adjoining edges, the distance between two adjacent holes, arranged on the longer edges, being L, 2L, 3L, 4L, 5L or a combination thereof, each long edge having a length being greater than 3L, L being equal to N; wherein said holes are provided with an inner gripping edge and extend parallel to the edge joining closest to the edge at which the holes are arranged, and said inner gripping edge intersecting a lower side groove, which lower side groove is substantially perpendicular to the hole and thereby substantially parallel to the edge at which the hole, being intersected by the lower side groove, is arranged.