TRAY Russian patent published in 2022 - IPC B65D5/20 B65D5/22 B65D5/30 

FIELD: cardboard packaging.

SUBSTANCE: invention relates to cardboard packaging. The tray is made of a sheet cardboard blank by bending its parts along the fold lines, having a rectangular bottom, from which the first two opposite side walls are bent along the fold lines, with the location of their side flaps in the form of continuations of these walls along their length on the fold lines of the second side walls. walls from the bottom. The second two opposite side walls are bent from the bottom and pressed from the outside to the side flaps of the first side walls. The first of the said side walls is made each with a part in the form of a continuation of these walls in height, bent from the wall, having side flaps in the form of a continuation of this part along its length and located on top at the ends of the second side walls with a bend of the side flaps belonging to it along the outer surface of the second side walls towards the bottom. At each site where the side flaps of the first side walls adjoin the second walls, a cut is made on these second side walls to form a trapezoidal petal with a smaller base facing away from the bottom and being the fold line of the formed petal. At each section of the adjoining side valves of the first side walls to the second walls, cuts are made in these side valves to form petals of a trapezoidal shape with a large base facing the bottom and being the fold line of the formed petal. Each side flap of the parts of the first side walls is made with a trapezoid-shaped tongue in the form of a continuation of the flap along its length, the smaller base of which is connected to the side flap and which is made with the possibility of entering into the combined openings from the trapezoid-shaped cuts of the petals when it is bent inside the tray or for adhesive attachment tongue outside the tray over the combined cuts of the trapezoidal petals.

EFFECT: cardboard packaging improvement.

1 cl, 4 dwg