ES280815A1 - A procedure for the assembly of folding boxes (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Procedure for the assembly of folding boxes, characterized in that part of an elementary or stamped piece that is completely flat, with a single thickness of cardboard or cardboard, and has three fold lines in its corners, two of which are extension of the fold lines of the corresponding vertical side walls of the reinforced box and therefore form a right angle with equal sides that produce a square in the corner in question, whose two fold lines cause the folding of the parts of the cardboard to the outside of the box, the third line forming a diagonal that arises at the intersection of the two fold lines first mentioned and reaches the same opposite vertex or outer corner of the blank and causes a folding of the cardboard towards inside the box, with what is created, when assembling the box, a triangular flap that is attached to the vertical wall contiguous in the armed box; some slits of the contiguous vertical wall, in the area thereof that is below the triangular flange attached to it, these grooves being parallel and slightly spaced; a small flexible and independent sheet that is introduced from the edge of the cardboard through the flange created by the slits, then folded at its lower end to anchor it to the piece of cardboard and leaving a sufficient length of this sheet outside the edge for that, when producing the aforementioned triangular flap and attaching it to the contiguous vertical wall and, therefore, on the sheet in question, the free part of it that remains outside the edge, can be bent inwards over the triangular flap that it is thus retained, keeping the corner walls in the desired vertical position. (Machine-translation by Google Translate, not legally binding)