RS20150017A1 - SELF-ASSEMBLY NON-PERFORMANCE FOOD BOX AND FORM FOR IT - Google Patents

Abstract

The self-folding impermeable food box and its forming tool include a box (1) with a tool (11) for forming it. The box (1) is made of cardboard or cardboard coated on the inside with a polyethylene film based on aluminum metallization. The box (1) has a bottom (3) and four sides (2). Tubs (9) for sauces or marinades were placed along two opposite sides (2) in the space (8). The space (8) is limited by one lateral side (2) and the folded angular sides (5, 6) which are interconnected and locked by the folded tabs (5.3, 6.3) so that the folded tab (6.3) is drawn and locked through the slit (4) on the folded tab (5.3). The box (1) is covered by a lid (10) so that the parts (10.1) of the lid are above the tubs (9). The tool (11) for forming the box (1) has a metal base (11.1) made of stainless steel, to which four guide hairs are attached. (11.2) forming the sides (2) of the box (1). There are two other variants of performing the box (1).

Description

SELF-FOLDING WATERPROOF BOX FOR FOOD AND TOOL FOR

ITS FORMATION

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: B65D81/34 (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 consists in how to construct transport packaging for ready-made meals, fried and fatty products, products that are consumed with the use of sauces or marinades, which is leak-proof while retaining its shape when packaging hot dishes, packaging that can be printed on the outside and which 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 can, if necessary, be disinfected with means permitted 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 completely satisfying the aesthetic side and not betraying the structure of the cardboard used to form the packaging, while at the same time fulfilling a protective, storage, transport use and ecological function and complying 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 enables 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 along a break line or according to a notched 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 when constructing 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 be placed in the packaging itself, which controls the amount of the squeezed substance during use.

In the patent application P-547/84, the drawings and description show a vessel that is hermetically sealed by heat, for edible oils and other types of oil, as well as preparation for its manufacture, which has a laminated wall construction, of suitable partitions or layers resistant to oil, 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 by 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 vessel 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. Indentation reduces the inherent resistance to tearing 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 metal, and consists of a bottom on which four sheet metal guides are fixed at an angle so as to 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 benefits 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 thus it is aesthetically simpler and cleaner 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-folding box with a forming tool is transported and stored in trays, except for the tubs, which can be delivered to the points of sale already folded for insertion. In this way, transportation and storage costs 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 in which: - figure 1, shows the axonometric appearance of a self-assembling airtight food box, without a lid; - Fig. 2, shows a self-assembling airtight food box, view "P" with si. 3; - Fig. 3, shows a section "A-A" with si. 2; - figure 4, shows the "Q" view with si. 2; - figure 5, shows the unfolded food box without tubs; - figure 6, shows the unfolded tub; - figure 7, shows the lid of the box; - figure 8, shows variant l of the unfolded box without tubs; - figure 9, shows variant II of the unfolded box without tubs; - figure 10, shows the tool for forming the food box; - figure 11, shows view "R" with si. 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 covered 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 bombardment so that the metallized layer rests on 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 materials was the choice of cardboard that enables branding, in terms of printing, and then formation and durability. Box 1 (si. 1) is made in such a way that it retains its technical characteristics by using cardboard with a weight of 200-400 gr/m<2>, for packing food products 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, 7.2 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 are drawn.

Box 1 (si. 1 and si. 2) is formed in tool 1 1 (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 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 outer lines 5.1 of the bending of the corner side 5 coincide with each other so that they form the corner line of the two joined side sides 2 of the box 1. This also applies to the corner page 6 whose two outer lines 6.1 coincide with each other. This forms a box with a bottom 3 and four side pages 2 as well as four folded corner pages 5, 6 at the corners of the side pages 2. On the folded pages 5, a folded tab 5 with a slot 4 is formed on top, and on the folded pages 6 a folded tab 6.3 is formed. 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 pages 5, 6 thus locked, pressed against each other, are secured by folding the flap 7 around the folding line 7.1 over them. This resulted in a space 8, which is limited by one side 2 and folded corner sides 5, 6, in which, along with the 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 around the bending lines 9.3, 9.4, 9.5, 9.6, 9.7, 9.8. First, the folding takes place around the line 9.3, then it is folded in the opposite direction around the 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 which includes the central part 10.3 for the box 1 and parts 10.2 for the tubs 9. The parts 10.1 of the cover are pulled inside the box 1 when they match.

Two more versions of the box were proposed. Variant I (si. 8) includes a box with a shortened bottom 3.2 with two sides 2 and two shortened sides 2.1. On the opposite sides 2, tubs 9 are placed, as in the case of the basic version. Variant II (si. 9) includes a box with an extended bottom 3.3 with two side panels 2 and two extended side panels 2.2.

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 slanting guides 11.2 are fixed, equidistant from the center of the base and perpendicular to the main axes of the base 11.1 of the tool. The oblique lines 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 angular 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)

1. Self-folding airtight food box, which is made of cardboard or cardboard coated on the inside with a polyethylene film of aluminum metallization, characterized by the fact that it includes a box (1) with a bottom (3) and four sides (2) where tubs (9) are placed along the two opposite sides (2) in the space (8), while the box (1) with tubs (9) is closed from above with a lid (10). by inserting the parts (10.1) into the box (1). 2. The box, according to claim 1, characterized by the fact that the space (8) is limited by one side (2) and the corner sides (5, 6) which are mutually connected and locked by folded tabs (5.3, 6.3) so that the folded tab (6.3) is pulled through and locked through the slot (4) on the folded tab (5.3). 3. The box, according to claims 1 and 2, characterized by the fact that the corner sides (5, 6) are bent around the bending lines (5.2, 6.2) and secured by bending the flaps (7) over them. 4. Box, according to claim 1, characterized by the fact that the tub (9) includes a middle tub (9.1) and two side tubs (9.2). 5. A box according to claim 1, characterized by the fact that the cover (10) includes the central part (10.3) of the cover for the box (1), parts (10.2) for tubs (9) and parts (10.1) for being drawn into the box (l). 6. The box according to claim 1, characterized by the fact that the box (1) is made by folding the shaped cardboard (A) around the folding lines (3.1, 5.1, 5.2, 6.1, 6.2, 7.1). 7. Box, according to claim 1, characterized by the fact that the tub (9) is made by bending the shaped cardboard (B) around the bending lines (9.3, 9.4, 9.5, 9.6, 9.7, 9.8). 8. Box, according to claim 1 and variant I, characterized by the fact that the box (1) includes a shortened bottom (3.2) with two side faces (2) and two shortened side faces (2.1). 9. Box, according to claim 1 and variant II, characterized by the fact that the box (1) includes an extended bottom (3.3) with two side walls (2) and two extended side walls (2.2). 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, equidistant from the center of the base and perpendicular to the axis of the base (12) of the tool.