Cardboard case for chicken eggs on a paper pulp backing

摘要

The utility model relates to the field of packaging. A cardboard case for chicken eggs on a substrate is made in the form of a box having a bottom for accommodating the substrate and side walls bent from the bottom and located along the substrate with their edge edges above the eggs. One pair of oppositely positioned side walls is provided with flaps that are bent away from the side walls and positioned end-to-end above the substrate to form a lid. These valves are made with end portions folded away from the valves and located towards the inside of the box perpendicular to the valves in their position forming a lid. The length of the side walls with which the valves are connected, measured along the line of inflection of these walls from the bottom, is made greater than the length of the bottom, measured along the same line of inflection. The end edges of the side walls, with which the valves are connected, are made beveled towards the fold line of these walls from the bottom and the fold line of the valves forming the cover. On the end portions of each line of inflection of the end part of the valve, cutouts are made with the formation of a hook in each cutout, the protrusion facing the valve side. The other two oppositely located side walls are made with fold lines for laying them on the convex profile of the end parts of the first of the mentioned side walls and with the end part bent along the bend line located under the cover. Each of the other two oppositely located side walls is made with one hole on the end part inflection line, located on the symmetry axis of the side wall and at a distance from the edge of this side wall, and with one open cutout on the edge of the folded end part of the wall. The axis of symmetry of the open cut is aligned with the axis of symmetry of the hole. The case is suitable for any type of substrates, the space between the walls of the case and the eggs is minimized and displacement of the substrate relative to the walls of the case 5 il.