Patent ID: 7356971
Filing Date: 2008-04-15
Classification: E04F

Abstract:
1. A locking system for mechanical joining of floorboards having a core, said locking system comprising: for horizontal joining of a first and a second joint edge portion of a first and a second floorboard respectively at a vertical joint plane: for vertical joining of the first and second joint edge portions: the first and second floorboards within their joint edge portions for the vertical joining having coacting upper and coacting lower contact surfaces, wherein at least the upper coacting contact surfaces comprise surface portions in said tongue groove and on said tongue; wherein the tongue, the tongue groove, the locking element and the locking groove have a configuration that allows insertion of the locking element into the locking groove by inward angling of the second floorboard towards the first floorboard while maintaining contact between the joint edge portions, and wherein the tongue, the tongue grove, the locking element and the locking groove have a configuration that allows insertion of the locking element into the locking groove by a substantially vertical snap action.