Patent ID: 7866111
Filing Date: 2011-01-11
Classification: E04F

Abstract:
1. A floor laying system for joining together floorboards along side edges thereof in which grooves are made, comprising: a separate profiled rail, which is disposed between the side edges of the boards and couples together the boards, the profiled rail having a plurality of legs projecting to opposite sides from a central longitudinal center plane of the profiled rail, wherein each of the legs is designed to lockingly engage in a groove in the respective opposing side edges of the floorboards, wherein each leg of the profiled rail has a first section having a thereto connecting, projecting flange for engagement in a corresponding recess which opens into the groove in the side edge of the respective floorboard, in which the flanges of the profiled rail and the corresponding recesses in the grooves diverge towards that side of the floorboards which forms a top surface layer thereof, and wherein the legs of the profiled rail have a respective second section that converges towards that side of the floorboards which forms a bottom side thereof, wherein the first section of each leg bears against a first beveled face of the groove, whilst the second section of each leg bears against a second beveled face of the groove in the side edge of the respective floorboard, and wherein the first beveled face of the one of two coupled-together floorboards is substantially diametrically opposite the second beveled face of the other of the coupled-together floorboards, in addition to which a slot running substantially parallel with the top and bottom sides of the respective board opens into the groove in each floorboard between the said recesses and the second beveled face, whereby said slot creates a resilient tongue having a springing and holding-together function on the floorboards, which responds to the movements of the material due to changes in temperature and humidity.