TOP OR BOTTOM STRUCTURE FOR FOLDED CONTAINER Russian patent published in 2012 - IPC B65D5/06 

FIELD: transport, package.

SUBSTANCE: box blank from cardboard coated by plastic comprises first row of panels and connection panel integrated in single structure along punched lines and jointed to end part to make end closing means. End part comprises second row of panels consisting of four end panels integrated along additional punched lines with appropriate structural panels. First and third panels thereof serve to make outer panels of said end closing means. Second and fourth panels serve to make inner panels of end closing means. Punched lines on said second and fourth end panels are shaped to isosceles triangles, their bases being composed of punched lines in said second and fourth structural panels. End panels have appropriate free end sections. Note here that free end sections of second, third and fourth end panels have loosening lines extending along row with end panels. Free end section of first end panel extend outward from other end sections. Free end section of third end panel is cut on both sides in lateral symmetry about its center to leave central tab while free ends of second and fourth panels are cut on sides in contiguity with third end panel to make appropriate cutouts with appropriate inclined edges to diverge outward.

EFFECT: reliable joint of flaps.

9 cl, 5 dwg