PACKAGING BOX Russian patent published in 2017 - IPC B65D1/22 

FIELD: packaging industry.

SUBSTANCE: container box has the shape of a parallelepiped, is made of a rigid laminate, and comprises four sidewalls and a bottom. The bottom is equipped with bearing projections along the perimeter, made in one piece with the bottom. The end bearing projections of each bottom side are spaced from the nearby bottom corner formed by two adjacent bottom sides. Along the lower part of the sidewalls, slit-like grooves are formed to accommodate the bearing bottom projections therein. The sidewalls parts located below the slit-like grooves represent the supporting parts of the sidewalls. At the upper part of each sidewall, seating projections and seating recesses are formed, arranged respectively over the supporting recesses and projections of the sidewalls supporting part. The lateral butts of the two first opposite box sidewalls are provided with connecting projections made in one piece with the respective sidewall. The second opposite sidewalls have the length larger than the distance between the two first sidewalls with connecting projections. Along the lateral butts on the second opposite sidewalls slit-like grooves are formed to accommodate the connecting projections therein. The supporting part of each sidewall is formed of at least three supporting projections and two supporting recesses therebetween. The end supporting projections of each lateral side are spaced from the nearby box corner to provide the possibility to abut on the bottom of a box corner between two adjacent side walls. The supporting recesses on each lateral side are arranged above the corresponding bottom bearing projections and are made with the possibility to abut on the bearing bottom projections. All the slit-like grooves in the sidewalls have geometrical dimensions to accommodate the connecting projections with interference therein to form a rigid connection not intended for disengagement.

EFFECT: increasing the strength and reliability of the design.

11 cl, 5 dwg