FOLDABLE CARDBOARD BOX Russian patent published in 2007 - IPC B65D5/32 

FIELD: packages, particularly for confectionery.

SUBSTANCE: foldable box comprises bottom made of flat blank with end and side walls and flanges, removable lid with flanges made as lid sides and fastening members. The fastening members are formed as cuts and tabs cooperating with the cuts. Lid includes two similar flat blanks separated into sections with fold lines. The sections create double upper and two double opposite end walls as fold lines are superimposed with each other. The opposite end walls are retained by fastening members. Box bottom has fold line to separate thereof from walls and fold lines parallel thereto, which create three serial sections with each side. Inner side walls have flanges, which may be located between outer and inner walls of end box board in folded position. Each fold line separating bottom from outer wall of the board has cuts. Fold line of inner board wall adjoining bottom has tabs to be engaged with cuts.

EFFECT: increased box rigidity and strength.

2 dwg