RS56005B1 - SELF-ASSEMBLY NON-PERFORMANCE FOOD BOX AND FORM FOR IT - Google Patents

Abstract

Self-folding impervious box for food and tool for its formation include a box (1) with a tool (11) for its formation. The box (1) is made of cardboard or cardboard coated on the inner side with a polyethylene film based on aluminum metallization. The box (1) has a base (3) and four side walls (2). Next to two opposite side walls (2) in the compartment (8) are placed recesses (9) for sauces or marinade. The compartment (8) is limited by the side wall (2) and a folded corner side walls (5,6) which are connected to one another and fixed by the bent tongues (5.3, 6.3) so that the folded flap (6.3) is pulled through the slot (4) on the folded tongue (5.3) and locked therein. The box (1) is covered with a lid (10) so that the fittings (10.1) of the lid are located above the recesses (9). The tool (11) for the box (1) forming has a metallic base (11.1) made of stainless steel on which there are fixed four inclined guides (11.2) which form the side walls (2) of the box (1). There are also another two embodiments of the box (1).

Description

Technical field

The invention belongs to the field of packaging for transporting materials, e.g. cardboard boxes.

According to the international classification of patents, the invention is marked with the basic classification symbols: B65DS1/34 (2006.01), which includes packaging for food packaging that needs to be heated in the packaging; B65D5/40 (2006.01) which covers rigid or semi-rigid packaging of polygonal cross-section, e.g. boxes, cartons shaped by paper folding, specially adjusted for liquid.

Technical problem

The technical problem is how to construct transport packaging for ready meals, fried and fatty products. products that are consumed with the use of sauces or marinades, impermeable and at the same time retain their shape when packaging hot dishes, packaging that can be printed on the outside and that on the inside meets all the requirements of food packaging related to health and microbiotics, packaging that is transported in trays, which affects the low cost of transportation and is easily formed at the place of packaging, packaging that, if necessary, can be disinfected with means approved for use with food. packaging that also has space for sauces or marinades, packaging that competes with PET packaging in terms of product price, and on the inside, without being completely satisfactory in that sense and aesthetically, does not betray the structure of the cardboard used to form the packaging, while at the same time fulfills a protective, storage, transport use and ecological function, and complies with the standards and regulations that regulate issues in this area.

State of the art

It is generally accepted that the packaging material is the most important element in creating the appearance of the packaging and it practically dictates the choice of technology for its production. These facts have influenced the strong development of cardboard packaging in addition to polymer materials, which in combination with them enable safer packaging in light cardboard boxes made of special cardboard coated with polymer foils resistant to temperature, humidity, etc.

In industrial production with high productivity, the process in which there is a manual part in the packaging slows down the production process, which is due to slower packaging and more expensive. Strict requirements have been set in terms of the precision of the packaging used, so the volume occupied by polymer packaging is much larger, which also affects the cost of transportation and storage, especially if the packaging is filled in smaller facilities throughout the territory covered by the food manufacturer. Also, polymer packages that come out at high temperatures, in the sense of packaging hot foods, are prone to deformation due to elevated temperature, which spoils the design of the packaging or raises the price, because increasing the thickness of the material reduces the effect caused by heating.

This invention in this sense, is transported in trays, can be branded. it is easily formed by hand, with the help of tools, it is leak-proof, it does not lose its shape due to the packaging of hot food or the heating of food packed in a box, it is locked with a locking system and tongues and does not open during transport except by strong deformation due to an impact, it has two tubs that are formed from the sides into which sauce or marinade can be poured, which allows the end consumer to use it elegantly and as such does not exist until now.

Some solutions are known from the patent documentation, which as such differ from the solution from the patent application that is submitted.

In the patent application P-2102/83, a dispenser package for liquid substances is shown, which consists of a flexible outlet part in which the liquid product is located, and a relatively rigid material rests on this part, and this package is opened according to a break line or according to a cut pattern in a relatively rigid material using one hand by pressing the package in a "V" shape towards the depression that is also formed in the shape of a pyramid. Pressure is concentrated and force is concentrated on the formed protrusion, so that barrier materials can be used in the construction of the package to form a holding protrusion and a certain opening through which the injected substance leaks. In this way, the material can be packed under pressure. A spongy material can also be placed in the packaging itself, which controls the amount of the substance squeezed out during use.

In the patent application P-547/84, the drawings and description show a container that is hermetically sealed with heat, for edible oils and other types of oil, as well as the preparation for its manufacture, which has a laminated wall construction, from suitable partitions or layers of oil-retaining, which are mutually compatible at least in terms of draining and heat binding. Such wall construction includes central layers of aluminum foil and fluorochemically treated cardboard, interconnected with a suitable adhesive, a layer of isonomer, such as surlin, formed on the outer surface of the cardboard and foil, and a layer of thermoplastic material, such as polyethylene, formed on each outer surface of surlin. As an alternative embodiment in some applications, the sarlin layer can be omitted from the surface of the foil, and the outer layer of thermoplastic material can be applied directly to the surface of the foil.

In patent application P-134/92, the invention relates to a packaging container and the use of packaging materials for its production. The packaging container contains a skeletal layer of plastic mass and filler mixed into the plastic mass in an amount between 50% and 80% of the total mass of the skeletal layer. To facilitate the opening of the container, the container has a tear mark embedded in the packaging material. Along the mark, the material in the packing container must be torn off to create an opening through which the contents of the packing container can escape. The mark according to the invention consists of a continuous notch in the skeletal layer or a similar linear depression that weakens the packaging material with a penetration depth of about 10-30% of the total thickness of the skeletal layer. The indentation reduces the inherent tear resistance of the skeletal layer to 60-80%.

Presentation of the essence of the invention

The novelty of the invention is reflected in the fact that the combined self-stacking, leak-proof food packaging box is quickly formed with the help of tools in the first stage. The tool is made of prochromic sheet, and consists of a bottom on which four sheet metal guides are fixed at an angle so that they form a bottom whose width and length are slightly larger than the bottom of the box, four sides are slightly smaller and serve to form the shape of the box. On that occasion, in the first phase, the sheet is positioned above the tool, pushed down and entering the tool template, the corner sides are bent around the bending lines and the side sides of the box are formed. The box at this stage takes the form of a hemmed pyramid turned upside down with the elements for locking the box in a position from which a lock can easily be formed. The lock of the box is formed by tongues that enter one another and due to the tension created by the bending of the corner sides and the arrangement of the slots, it is impossible to unfold the box. The tabs form a lock on the outside of the box and do not disturb the compactness of the space in which the food is placed, and at the same time participate in the formation of space for tubs for sauces or marinade on both sides of the box. Tubs, as a separate element obtained by simply bending the tub assembly, are inserted into the space between the locked corner sides and side panels. The lid of the box is provided as a separate element with its disassembly.

The essence of the invention is that the manual formation of the box is accelerated, that no auxiliary elements are needed to lock the box from the outside, and that the tubs are formed without auxiliary elements, and the advantages are that the end consumer can consume bite-sized pieces of food by dipping them in the sauce that is placed in the tubs, and it is aesthetically simpler and cleaner for them to use and consume food.

The above-mentioned aesthetic moment, the tubs, that is, the spaces for the sauce, in the box give a very nice visual effect that distinguishes this product from the ones known so far.

The subject invention also has the advantage that sauce tubs may or may not be formed, and the box uses the same lid to close the box without tubs and with tubs.

Such a self-stacking box with a forming tool is transported and stored in trays. except for tubs that can be delivered to sales points already bent for insertion. In this way, the costs of transportation and storage are reduced, and the forming tool enables the box to be formed quickly and easily.

Brief description of the draft images

The invention is described in detail on the example of execution and shown on the drawing on which:

- Figure 1 shows an axonometric view of a self-stacking airtight food box, without a lid;

- Fig. 2 shows a self-assembling airtight food box, view "R" of fig. 3; - Fig. 3 shows the section "A-A" from Fig. 2;

- figure 4, shows view "Q" from fig. 2;

- picture 5, shows an unfolded food box without tubs;

- picture 6, shows the unfolded tub;

- picture 7, shows the lid of the box;

- picture 8, shows variant I of the unfolded box without tubs;

- picture 9, shows variant II of the unfolded box without tubs;

- figure 10, shows a tool for forming a food box;

- picture 11, shows the view "R" from picture 10;

- figure 12, shows the initial stage of forming the box in the forming tool;

Detailed description of the invention

The subject invention is a cardboard box coated with a protective layer that allows the self-assembling box to be healthy and microbiotically correct for direct contact with food. For example the cardboard can be coated on the inside with PET films with or without aluminum metallization. The aluminum layer is applied to the foil by bombarding until the metallized layer adheres to the side of the foil that sticks to the cardboard. Aluminized foil has a thickness of 8-12 microns. The metallized layer is used for the purpose of more permanent food protection and visual effect. Cardboard that is covered with foil without metallization is used for the needs of users who heat packaged foods in microwave ovens.

With its shape and strength, box 1 enables food packaging and heating for up to 15 minutes at 140°C. Box 1 is leak-proof, without elements that stick, and therefore safer than the possibility of semi-liquid food leaking. Boxes with corners, edges or bottoms glued, which is avoided by this solution, are susceptible to leakage due to weakening of the joint caused by inadequate gluing or damage due to transport or packaging formation, and therefore are not used as such for packaging semi-liquid food.

An important criterion for the selection of m aterial was the choice of cardboard that enables branding, in terms of printing, followed by formation and durability. Box 1 (si. 1) is made in such a way that it retains the technical characteristics by using cardboard with a grammage of 200-400 gr/m<2>, for packing lures with a volume of up to 0.71 that do not exceed a weight of 0.5 kg. The cardboard included in the box can be coated on the outside or not, depending on the requirements for printing on the cardboard.

The prepared cardboard, coated with or without a layer, is pressed and cut in a machine equipped with a tool with knives (not shown). In the tool there are knives for cutting along the contours and making slits 4 of the shaped opening A (si. 5) of the box 1 and internal knives that partially enter the cardboard so that the planned lines 3.1, 5.1, 5.2, 6.1, 6.2, 7.1 of bending are performed on the cardboard. The shaped assembly B (si. 6) for tubs 9 is prepared on a similar tool with knives so that the contour is cut and the bending lines 9.3, 9.4, 9.5, 9.6, 9.7, 9.8, 9.16 are drawn.

The central part of the shaped split A represents the bottom 3 of a square shape, the sides of which represent the lines 3.1 of bending, which are continued by the side sides 2 of the shape of an isosceles, upside-down trapezoid. Corner sides 5 and 6 of the shape of an isosceles triangle are alternately arranged between the side sides 2, which are separated from the side sides 2 by the bending lines 5.1 and 6.1. On the line of the corner side 5 and on the bending line 5.2, there is a tab 5.3 with a slot 4, and next to the tab 5.3, there is a flap 7, in the shape of a regular trapezoid, which is separated from the corner side by the bending line 7.1 5. By straightening the sides 2, the diagonal side 5 is bent around the line 5.2 of the fold so that both halves of the bent corner side 5 lie on each other and remain on the outside of the box, so the flap 7 is folded around the line 7.1 of the fold and wrapped around the other adjacent half of the corner side 5, thus securing them from separation.

On the line of the corner side 6 and on the inner line 6.2 of the bend, a tab 6.3 is made, and next to the tab 6.3, a fold 7 of the shape of a regular trapezoid is made, which is connected to the corner side 6 by the line 7.1 of the bend. The corner side 6 is folded around the line 6.2 of the bend so that both halves of the bent corner side 6 rest on each other and remain on the outside of the box, so the fold 7 is folded around the line 7.1 bends and wraps around the other adjacent half of the corner side 6 and is thus secured against separation.

Shaped unfolding B is formed by surfaces 9.9, 9.10, 9.11, 9.12, 9.13, 9.14, 9.15 between which the bending lines 9.3 9.4, 9.5, 9.6, 9.7, 9.8, 9.16 are drawn. The shaped unfolding B includes the surface 9.9 of the shape of a regular isosceles trapezoid with a base represented by the line 9.3 of bending, on which the surface 9.10 of the shape of a regular isosceles hexagon of parallel sides 9.3, 9.4 continues. On surface 9.10, the surface 9.11 of the shape of a regular trapezoid continues with the bending line 9.4. The two surfaces 9.12 of the shape of a trapezoid are continued to the surface 9.10 with the lines 9.8 of bending, and the two surfaces 9.13 of the shape of a many-sided triangle are continued to them with the lines 9.16 of bending. On the two surfaces 9.13, the two surfaces 9.14 in the form of a many-sided triangle continue with the bending lines 9.7. The two surfaces 9.15 of the form of an isosceles triangle continue to the two surfaces 9.14 with the lines 9.6 of the folds and continue to the surface 9.11 with the lines 9.5 of the folds. The tub 9 formed in this way is placed in the space 8 of the box 1.

Box 1 (si. 1 and si. 2) is formed in tool 11 (si. 10 and si. 11). The molded assembly A is placed above the tool 11 on the inclined guides 11.2 and the part of the molded assembly A is pressed by hand against the bottom 3 until the bottom 3 is pressed against the base 11.1 between the inclined guides 11.2. In doing so, the side sides 2 of the shaped assembly A are pressed against the oblique guides 11.2 and the corner sides 5, 6 are bent around the bending lines 5.2, 6.2, as shown in fig. 12. Then both bending lines 5.1 of the corner side 5 coincide with each other so that they form the line of the two joined side sides 2 of box 1. This also applies to the corner page 6 whose two outer bending lines 6.1 coincide with each other. This forms a box with a bottom 3 and four sides 2 as well as four folded corner sides 5, 6. A folded tab 5.3 with a slot 4 is formed on the top of the folded corner sides 5 and a folded tab 6.3 is formed on the folded corner sides 6. The folded corner pages 5, 6 are rotated in the directions 5.4, 6.4, (si. 12) are connected and locked together by passing the folded tab 6.3 through the slot 4 on the folded tab 5.3. The folded corner sides 5, 6, locked in this way, pressed against each other, are secured by folding the flap 7 around the folding line 7.1 and wrapping it around the folded corner side 5 and wrapping it around the folded corner side 6. This gives a space 8 which is limited by one side 2 and the folded corner sides 5, 6 in which, along with two opposite sides 2, tubs 9 are placed.

Tub 9 includes a middle tub 9.1 and two side tubs 9.2. The tub 9 is formed from the shaped assembly B by bending the surfaces 9.9, 9.10, 9.11, 9.12, 9.13, 9.14, 9.15 around the lines 9.3, 9.4, 95, 9.6, 9.7, 9.8. 9.16 bending. The first folding takes place around the folding line 9.3, then it folds in the opposite direction around the folding line 9.4, then the folding takes place so that the side tubs 9.2 and the middle tubs 9.1 are obtained. The tub 9 formed in this way is inserted into the space 8 between the lateral side 2 and the folded and locked corner sides 5, 6.

The box 1 is covered with a cover 10 that includes the central surface 10.3 of the shape of a rectangle that covers the box 1 and the side surfaces 10.1 of the shape of a regular trapezoid that cover the tubs 9. The side surfaces 10.2 of the shape of a regular trapezoid of the cover are pulled inside the box 1 when they match.

Cover 10 is formed by surfaces 10.1, 10.2 and 10.3, which continue with each other with bending lines 10.4 and 10.5;

Two more versions of the box were proposed. Variant I (si. 8) includes a box 1 with a shortened bottom 3.2 in the form of a rectangle, the longer sides of which continue with two lateral sides 2 and two shortened lateral sides 2.1 which continue with its shorter sides. Tubs 9 are placed on opposite side panels 2, as in the basic design. Variant II (fig. 9) includes a box 1 with an extended bottom 3.3 in the form of a rectangle, on the shorter sides of which two lateral sides 2 and two extended lateral sides 2.2 continue on its longer sides.

The forming of the box 1 is performed in the forming tool 11 as described above and shown in (si. 12). The tool is made of prochromic sheet metal and has a base 11.1 on which four oblique guides 11.2 are fixed, equidistant from the center of the base so that the edges 11.3 of the oblique guides 11.2 are perpendicular to the main axes of the base 11.1 of the tool. The oblique guides 11.2 correspond to the bending angle of the sides 2. The corners between the oblique sides 11.2 are the space where the folded corner sides 5, 6 are formed. Edible ready meals, fried and fatty products are poured into the box 1, and sauces or marinades are poured into the tub 9.

Claims (10)

Patent claims 1. A self-stacking airtight food box, which is made of cardboard or cardboard coated on the inside with a polyethylene film of aluminum metallization, includes a box (1) with a bottom (3) and four sides (2), characterized by the fact that tubs (9) are placed along the two opposite sides (2) in the space (8), while the box (1) with the tubs (9) is closed from above with a cover (10) by retracting side surfaces (10.2) into the box (1); which is the space (8) in which the tubs (9) are placed is limited by one side (2) and the corner sides (5, 6) which are alternately arranged between the side sides (2) on the molded assembly (A) to form the box (1) and which are mutually connected and locked by the folded tabs (5.3, 6.3) produced on them, so that the folded tab (6.3) of the corner sides (6) pulled through and locked through the slot (4) performed on the folded tongue (5.3) of the corner side (5) and the central part of the shaped opening (A) represents the bottom (3) of the shape of a square, the sides of which are the lines (3.1) of bending, which are continued by the side sides (2) of the shape of an isosceles inverted trapezoid, with the corner sides (5, 6) of the shape of an isosceles triangle being alternately arranged between the sides (2) are lines (5.1, 6.1) separated from the side panels (2). 2. A box according to claim 1, characterized in that the corner side (5) is bent around its inner line (5.2) of the bend so that both halves of the bent corner side (5) lie on top of each other, while the flap (7) is bent around the line (7.1) of the bend and wrapped around the other adjacent half of the corner side (5). 3. A box according to claim 1, characterized in that the corner side (6) is bent around its inner line (6.2) of the bend so that both halves of the bent corner side (6) lie on top of each other, while the flap (7) is bent around the line (7.1) of the bend and wrapped around the other adjacent half of the corner side (6). 4. Box according to claim 1, characterized in that the tub (9) includes a middle tub (9.1) and two side tubs (9.2). 5. The box, according to claim 1, characterized by the fact that the cover (10) includes the central surface (10.3) of the shape of a rectangle, which is connected by the lines (10.5) of bending to the side surfaces of the shape (10.1) of the shape of a regular trapezoid and the lines (10.4) of bending connected to the outer surfaces (10.2) of the shape of a regular trapezoid. 6. Box according to claim 1, indicated by the fact that the tub (9) is made by bending the shaped assembly (B) along the lines (9.3, 9.4, 9.5, 9.6, 9.7, 9.8, 9.16) of the bends made between the surfaces (9.9, 9.10, 9.11, 9.12, 9.13, 9.14, 9.15) which form the breakdown (B). 7. The box, according to claim 1, 4, 6, characterized by the fact that the shaped opening (B) includes a surface (9.9) in the shape of a regular isosceles trapezoid with a base represented by a line (9.3) of bending, on which the surface (9.10) of the shape of a regular isosceles hexagon of parallel sides (9.3, 9.4) continues, so the surface continues on the surface (9,10) with a line (9.4) of bending (9.11) of the shape of a regular isosceles trapezoid, then the two surfaces (9.12) of the shape of the trapezoid are continued to the surface (9.10) with the lines (9.8) of the bends, and then the two surfaces (9.12) are continued with the lines (9.16) of the bends to the two surfaces (9.13) of the shape of the isosceles triangle, then the two surfaces (9.14) of the form are continued on the two surfaces (9.13) with the lines (9.7) of the bends of a many-sided triangle, and on two the surfaces (9.15) of the form of an isosceles triangle are continued with the lines (9.6) of the bends on the two surfaces (9.14) and with the lines (9.5) of the bends they are continued on the surface (9.11). 8. Box, according to claim 1 and variant I, characterized by the fact that the box (1) includes a shortened bottom (3.2) in the shape of a rectangle, the longer sides of which continue with two lateral sides (2) and the shorter sides of which continue with two shortened lateral sides (2.1). 9. The box, according to claim 1 and variant II, characterized by the fact that the box (1) includes an extended bottom (3.3) in the shape of a rectangle, the longer sides of which are extended by two extended lateral sides (2.2) and the shorter sides are extended by two lateral sides (2).<■> 10. A tool for forming a food box, indicated by the fact that it includes a base (11.1) of the tool on which four oblique guides (11.2) are fixed for guiding the sides (2) of the self-stacking impermeable food box according to one of the previous requirements equidistant from the center of the base so that the edges (11.3) of the oblique guides (11.2) are perpendicular to the axes of the base (11.1) of the tool.