Patent ID: 7784230
Filing Date: 2010-08-31
Classification: E04B

Abstract:
1. A block made of solid wood or pressboard for the construction of a solid wall by staggered stacking, the block comprising: an upper face and a lower face and two opposite ends; a pair of flanges on the upper face and a pair of grooves on the lower face for the assembly of the block by tongue and groove joint, a longitudinal axis of the flanges on the upper face and a longitudinal axis of the grooves on the lower face facing each other two by two on the same vertical axis, a diameter of each groove is greater than a diameter of the flange in the same vertical axis; the upper face comprising an upper bearing surface located within and delimited by adjacent interior edges of the pair of flanges; the lower face comprising a lower supported surface located within and delimited by adjacent interior edges of the pair of grooves; a splined tongue and groove joint at each of the two ends, parallel to the wall facings and perpendicular to the upper and lower faces, for a symmetrical assembly at the two ends of the block; at each splined tongue and groove joint, a group of two countersunk holes perpendicular to the upper face, passing through the block up to the lower face and located on an axis that is parallel to the flanges and between the latter, in the same longitudinal axis as the splined tongue and groove joints; means for screwing or nailing inserted into each of the countersunk holes at a depth equal to at least one third of the thickness of the block; and wherein the flanges and grooves present a profile in a semicircle.