RU217771U1 - EGG PACKAGING - Google Patents

Abstract

The utility model relates to the field of packaging for special purposes, mainly for eggs, and is aimed at improving the safety of packaged products. The achieved result is to create the most optimal conditions for placing eggs of any categories with a simultaneous increase in the area of the supporting surface of the package, which together ensures an increase in the safety of the packaged products. The egg package contains a receiving part connected to the lid along the inflection line in the form of a tray with rows of cells for eggs and separating stops for them. The essence of the solution lies in the fact that the cup-shaped shape of the cell is formed by smoothly conjugated annular segments of the spherical surface in the upper part and the cone-shaped lower part conjugated with them with reliefs formed by the dampers of the side walls. The dampers of the side walls are made in the form of alternating bulges outside the cell and concavities deep into the cell, the width and depth of which increases towards the base of the cell. At the same time, the outward bulges of the cell are formed with an approach to the annular segment of the spherical surface. 5 z.p. f-ly, 10 ill.

Description

Field of technology to which the utility model belongs

The utility model relates to the field of containers and packaging intended for the placement, storage and transportation of fragile items, mainly eggs.

State of the art

Known packaging containers for eggs (see patent RLJ 137768, IPC: B65D 85/00, 02/27/2014), including a three-dimensional rectangular base with rows of cells, the inner surfaces of which contain seats close to the shape of eggs of a given size, and hollow ledges located on the four sides of each cell and in contact with each other by means of stiffening ribs, while the edges of the protrusions facing the centers of the cells have a concave shape corresponding to the shape of eggs of a given standard size.

The disadvantages of this and similar designs, for example, see patents RU 2361797, 20.07.2009; RU 167083, 12/20/2016; RU 2476361, 02/27/2013, should be attributed to a narrow purpose: only for eggs of a given size.

However, often, the manufacturer prefers to use a universal container that allows you to place eggs of any size in it and at the same time ensure their safety during transportation and storage.

Universal packages are known, in which the cells are made with expansion grooves on the side walls, which are recesses on one side of the cell and protrusions on the other. In various sources, these expansion grooves are also referred to as ribs, pillows, dampers (see, for example, US patents 5494164, 02/27/1996; US 4650076, 03/17/1987; CN 206375207, 08/04/2017; 08/14/1984; US 6012583, 01/11/2000).

As a rule, in the area of such reliefs (protrusions, ribs, dampers), the cell wall has a smaller thickness and can be easily deformed, which makes it possible to place and hold eggs of different sizes in the same cell.

Most often, protrusions (dampers) are directed inside the cavity of the cell, and when a small egg is placed in it, they function as lodgements and elastic support for the egg in the volume of the cell. In the case of a large egg, the above-mentioned reliefs straighten out under the pressure of the latter, providing elastic expansion of the walls and the possibility of placing the egg in the cell.

As the closest analogue for the claimed technical solution adopted packaging for eggs, made by molding of expanded polystyrene or pressed paper pulp, see patent RU 2500596, IPC: B65D 85/32, publ. 12/10/2013.

Similar features of the closest analogue with the claimed package are as follows: the egg package contains a base (receiving part) connected to the lid along the inflection line in the form of a rectangular tray in plan, in which two rows of cells are made to accommodate semi-ellipsoid eggs, or rather, cup-shaped, between cells are dividing stops. On the side walls of each cell, dampers are made in the form of protrusions elongated from the bottom up along the wall, directed into the cell. The bottom (base) of the cell has an annular bulge directed inside the cell and forming an additional damper. Along the perimeter of the tray and the lid, flanging is made and elements of the locking mechanisms are located.

The disadvantages of the closest analogue should include the fact that not all categories of eggs in the known design created favorable conditions for placement. Thus, straight and narrow protrusions (dampeners) extended along the height of the cell walls have a relatively high rigidity and, if a large egg is placed in the cell, keep it hanging over the base of the cell, exerting excessive pressure in the middle part of the egg, which is most vulnerable to pressure.

The objective of the proposed utility model is to create a universal packaging for eggs that allows you to place eggs of any category (CO, C1, C2) and provides the best safety for all categories.

The use of the proposed utility model ensures the creation of the most optimal placement conditions for eggs of any categories (sizes), contributing to their better preservation, while increasing the supporting surface area, and hence stability, of each cell individually and packaging as a whole, which also contributes to improving the safety of the packaged products .

Disclosure of the essence of the utility model

The above problem has been solved due to the fact that in the proposed egg packaging containing a receiving part connected to the lid along the inflection line in the form of a tray with rows of cells for eggs, made in a bowl shape with dampers on the side walls and base, and with dividing stops placed between rows of cells, according to the claimed utility model, the cup-shaped shape of the cell is formed by smoothly mating annular segments of the spherical surface in the upper part and the cone-shaped lower part associated with them with reliefs formed by the dampers of the side walls, made in the form of alternating bulges outside the cell and concavities deep into the cell, the width and depth of which increases towards the base of the cell, while the outward bulges of the cell are formed with an approach to the annular segment of the spherical surface.

The annular segments of the spherical surface form most of the height of the cell, about 2/3 of its height. The bulk of the reliefs is concentrated in the lower third of the cell.

Unlike the closest analogue, the side walls of the cells contain two types of dampers: bulges outside the cell and concavities deep into the cell. At the same time, a significant difference is the drop-shaped shape of the dampers, expanding downward, towards the base of the cell, in contrast to the straight "ribs" of the closest analogue.

The dampers expanding outwards and downwards towards the base of the cell increase the shock-absorbing properties of the landing nest and reduce the pressure on the egg during stacking, and also contribute to an increase in the area of the base of the cell, i.e. the area of its supporting surface, which helps to increase the stability of the package. This is especially important when stacking filled packages, forming a stack from them.

Moreover, the outwardly convex dampers, under load applied from above, further expand at the base, thereby further increasing the cell's bearing area.

The location of the internal drop-shaped dampers with an extension at the base of the cell allows you to fix the egg as tightly as possible in the lower part of the landing nest, regardless of its size, which eliminates the possibility of fluctuations and shaking of the egg inside the cell during transportation and storage.

Due to the fact that the depth and width of the drop-shaped protrusions decreases up the cell wall, pressure on a large egg in its middle part is eliminated while maintaining its maximum tight fit.

The proposed technical solution is mainly focused on packaging made of foamed polymeric material.

In preferred embodiments, each cell contains four convexities and concavities on the side wall.

The damper on the basis of the cell is made in the form of at least one annular bulge deep into the cell.

Preferably, a shaped recess is formed in the lid, passing on the inner surface of the lid into two protrusions, interacting with their vertices with separating stops of the receiving part when the lid is closed, which contributes to the rigidity of the package, prevents the lid from bending under pressure and increases the safety of the eggs placed in the package.

Brief description of the drawings

The essence of this utility model, the possibility of its industrial applicability and the achieved technical results are explained by examples of a specific implementation with reference to the attached drawings, which show:

in fig. 1 - packaging for eggs, general view in the closed state, perspective view;

in fig. 2 also, view A from Fig. 1 in FIG. 3 view B from FIG. 1;

in fig. 4 - packaging in the open state, inside view, perspective view;

in fig. 5 is view C of FIG. 4;

in fig. 6 - packaging in the open state, outside view, perspective view;

in fig. 7 is a view D of FIG. 4; in fig. 8 section A-A from FIG. 1;

in fig. 9 and 10 show the arrangement of eggs of different categories within the package.

Implementation of the utility model

An egg carton, the general view of which in the closed state is shown in Fig. 1-3, contains a cover 1 and a receiving part connected to it along the inflection line 2 in the form of a tray 3 of rectangular shape in plan, in which cup-shaped cells 4 for eggs are formed, placed in at least two rows, and dividing stops 5 between rows of cells (see Fig. 4-5).

The cup-shaped shape of the cell 4 is formed by smoothly mating annular segments of the spherical surface 6 and 7 and the cone-shaped part 8 with reliefs formed by the dampers of the side walls of the cell 4 (see Fig. 6).

These dampers are made in the form of alternating bulges 9 outside the cell and concavities 10 deep into the cell, the width and depth of which increases towards the base of the cell, which leads to the formation of a drop-shaped dampers. When this bulge 9 is formed with the approach to the nearest annular segment 7 of the spherical surface.

In the example shown, each cell 4 contains four convexities 9 and concavities 10 on the side wall (see Fig. 7).

On the basis of cell 4, at least one annular bulge 11 is formed, directed deep into cell 4 and forming an additional damper.

Lid 1 repeats the shape of tray 3 in plan. Along the perimeter of the tray 3 and the perimeter of the lid 1, stiffening ribs are made in the form of flanges 12 13, respectively, which, when abutting against each other, form a packing stiffening belt. The lowering of the flanging on the end walls of the tray 3 and the lid 1 form the openings 14 (see Fig. 3) necessary for the ventilation of the package and the safety of the eggs.

The lid 1 is connected to the tray 3 by a locking mechanism, which in the given example is a valve 15 connected to the tray 3 along the inflection line, on which protrusions 16 are formed, interacting with slots 17 in the side wall of the lid 1 when the valve is placed inside the lid when locking (see Fig. Fig. 2, 9).

The lid 1 has a shaped recess 18 (see Figs. 1, 6, 8), which forms two thrust ledges 19 on the inner side (see Figs. 4, 7) directed away from the lid. These protrusions 19 (in a closed package) interact with their tops with the tops of the truncated pyramidal dividing stops 5 of the tray 3, and form elements of the vertical rigidity of the package with them.

Preferably, the package is thermoformed from foamed polymeric material.

The design works as follows.

When placed in a package of small eggs 20, for example, category C2 (see Fig. 9), the walls of the concavities 10 protruding into the internal volume of the cell 4 provide support for the egg 20 on the sides in the lower part and, together with the annular damper 11 of the cell base, prevent oscillation (shaking, beating) eggs during transportation.

The surfaces of the protrusions 19 of the cover 1, partially repeating the shape of the eggs, support the eggs from above, further reducing their possible vibration in the cell.

When large eggs 21 are placed in the package, for example, category C0 (see Fig. 10), under the pressure of the placed egg, the folds of the cell walls 4 in the area of bulges 9 and concavities 10 straighten out, providing an increase in the internal volume of the cell and densely but gently cover the placed in her an egg. At the same time, up the wall of cell 4, the depth and width of the drop-shaped dampers 9 and 10 decreases, which helps to eliminate pressure on a large egg in its middle part, while maintaining the tightest possible fit.

Thus, not only a damping effect is ensured when placing eggs of different categories, but also the creation of the most optimal conditions for eggs of all sizes.

Convex outwards, expanding to the base of the cell 4 dampers (bulges 9) provide high shock-absorbing properties of the seat and contribute to an increase in the area of support, both the cell and the package as a whole. This ensures the stability of the structure of the stack (foot) of filled packages.

Under load from above, the bulges 9 further expand, further increasing the supporting area of the cell at the base.

It should be understood that the examples of implementation are not the only possible and serve only for clarity of description.

Claims (6)

1. An egg package containing a receiving part connected to the lid along the inflection line in the form of a tray with rows of cells for eggs, made in a cup-shaped shape with dampers on the side walls and base, and with separating stops placed between the rows of cells, characterized in that the cup-shaped the shape of the cell is formed by smoothly conjugated annular segments of the spherical surface in the upper part and the cone-shaped lower part conjugated with them with reliefs formed by the dampers of the side walls, made in the form of alternating bulges outside the cell and concavities deep into the cell, the width and depth of which increases towards the base of the cell, while the outward bulges of the cell are formed with an approach to the annular segment of the spherical surface. 2. Packaging for eggs according to claim 1, characterized in that the annular segments of the spherical surface occupy 2/3 of the height of the cell. 3. Packaging for eggs according to claim 1, characterized in that each cell contains four bulges and concavities on the side wall. 4. An egg package according to claim 1, characterized in that a shaped recess is formed in the lid, passing on the inner surface of the lid into two protrusions, made with the possibility of interacting with the separating stops of the receiving part when the lid is closed. 5. Packaging for eggs according to claim 1, characterized in that the damper on the base of the cell is made in the form of an annular bulge deep into the cell. 6. Packaging for eggs according to claim 1, characterized in that it is made of foamed polymer material.

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