Re-usable cardboard packaging comprises bottom rectangular and trapezoidal flaps, rectangular flaps comprise inclined parts articulated to rest of flap which project as tenons

摘要

In the packaging the first two bottom flaps (10,11) adjoining two second folding lines parallel to walls (1,2) of greatest length have a rectangular shape. They comprises a part (10a,11a) articulated on the rest of the flap by a folding line leaving one end of the second folding line and inclined at 45o to it. This part has dimensions perpendicular to the second folding line greater than the corresponding dimension of the flap so as to project as a tenon. Two second bottom flaps (12,13) adjoining two folding lines parallel to two shorter walls (3,4) have a trapezoidal shape and have a dimension perpendicular to the second folding line equal to the corresponding dimension of the articulated part of the first flaps.