Abstract: A blank is provided which has a chassis of corrugated cardboard where a series of a quadrangular closure flap, a quadrangular cover panel, a first quadrangular lateral panel, a quadrangular bottom panel and a second quadrangular lateral panel are individuated by crease lines. Each panel is provided with left and right quadrangular flaps, respectively. The blank has four compression members of corrugated cardboard glued to an internal face of the chassis in correspondence of areas bordering the first and second quadrangular panels and the respective left and right quadrangular flaps. A box obtainable from the blank by folding is also provided.

Abstract: A method for customizing a blank of sheet material delimited by first and second opposite sides and third and fourth opposite sides orthogonal to the first and second sides involves doing, on a face of the blank, a first couple of first and second wave-shaped crease lines and a second couple of third and fourth wave-shaped crease lines, each wave-shaped crease line being crossed by straight crease tracts, so that the third side, the first, second, third and fourth wave-shaped crease lines and fourth side delimit in succession a first top panel, a first side panel, a bottom panel, a second side panel and a second top panel, doing first and second continuous straight crease lines parallel to each other and to the straight crease tracts and delimiting respective back and front wings of each of the first top panel, first side panel, bottom panel, second side panel and second top panel. Glue is transversally applied to the straight crease lines.

Abstract: The invention relates to a one piece blank of a corrugated cardboard sheet material designed for forming a belt intended to form a box having a length L, a width W and a height H, wherein this blank includes a main rectangular body (10) extending along a longitudinal direction and two protruding rectangular parts (11, 12) extending in a transverse direction and symmetrically with regard to the main body, so as to define two perpendicular branches, a first branch being defined by the main body and a second branch defined by the protruding parts, the main body (10) having a width (D1) larger than the length L and a length (D2) larger than at least twice the width W plus the height H (2W+2H) and each of the protruding parts having a length (d1) larger than the height H or the width W and a width (d2) larger than the width W or the height H.