RU204932U1 - TWO-STRIP TRAY - Google Patents

Abstract

The utility model relates to the field of containers and packaging for storing and transporting products and materials. A two-strip tray made of corrugated cardboard with a solid bottom for placing predominantly packaged products is made of a flat workpiece divided into a bottom, walls, strips, connecting and power valves with cuts and fold lines. The tray is converted into a volumetric state by fastening four, which are a continuation of the ends of two strips of connecting valves with perpendicular strips, single or double walls by gluing or tongue-slot locks. Reinforcement of the planks from the inside by force valves oriented along the planks guarantees the rigidity of the tray in the vertical direction and suitability for stacking along the planks and ends of the walls fastened to the planks. 6 c.p. f-ly, 11 ill.

Description

The utility model relates to the field of containers and packaging for storing and transporting products and materials and can be used as an industrially manufactured, mainly disposable, disposable container for placement, transportation over long distances, followed by storage and sale of various food products, presented mainly in packaged or piece form. Very often, such containers are used as part of stacks, hence the requirements for strength and rigidity.

Boxes, boxes, trays made of corrugated cardboard are used daily in mass volumes, therefore, it is important for packaging manufacturers and consumers to optimize the operational properties of packaging and the amount of main and auxiliary materials consumed for each packaging unit, which is determined by the purpose of packaging for a specific group of goods and technology. obtaining a blank and assembling a product ready for filling.

The technological features of the packaging production, determined by the design of the product for mass production by an industrial method, as well as the time, additional technical means and materials for converting the box after the industrial production of the blank from the flat folded state to the volumetric one, are of significant importance for both manufacturers and consumers of packaging. to fill with any product. Even small, at first glance, differences in technical solutions from already known samples may turn out to be significant in assessing the overall efficiency of both the technical effect and the associated economic effect.

At present, in connection with the development of technologies for manufacturers of mass products, as a rule, food, it becomes possible to automate the assembly of group packaging on gluing machines with program control and to automate the loading of packaged products into it. At the same time, there is a need for manual assembly of group packaging in small businesses where gluing machines are not available. For this reason, it is useful for the manufacturer of blanks used for the assembly of group packaging to have a design of a universal tray, for the production of which corrugated cardboard is required, obviously no more than for well-known common designs, and allowing, along with automated assembly-gluing-destruction and subsequent disposal, simple manual assembly. and disassembly.

Widely known and widespread trays made of corrugated cardboard of a simplified design, made of one blank with lid and bottom flaps, with a side seam formed by fastening the wall with glue or wire staples with a narrow docking flap with the formation of a closed shell (see diagram # 0200 according to the international catalog FEFCO - European Federation of Corrugated Board Manufacturers, Belgium). To use the tray for its intended purpose, before filling, four valves connected to the walls and folding inward forming the bottom should be folded in pairs and fastened with staples, glue or adhesive tape. All other things being equal, material consumption for the cover and bottom flaps is determined by the width of the tray, as a rule, the width of the flaps with such a simple cutting pattern is equal to half the width of the tray. It is necessary to use means of fastening valves and devices for the use of these means, as a rule, adhesive tape with a total length of at least the length of the box, however, the rigidity of the bottom of the box formed by two connected halves is less than the rigidity of a solid one-piece bottom, and for this reason boxes with by connecting the bottom with adhesive tape may not withstand heavy fillings, such as glass jars, metal cans, hard cheeses, etc. In this case, the issue of non-opening of the bottom is solved by setting an internal insert according to the size of the bottom, which leads to an additional consumption of material. It is obvious that stacking of such trays is difficult due to the undeveloped support surface for placing each next upper tray.

Known open box with longitudinal strips resting in the area of the ends on transverse horizontally oriented strips (number 0209 in the catalog of FEFCO - European Federation of Corrugated Board Manufacturers, Belgium). Such a scheme for organizing the supporting surface for stacking does not allow to ensure sufficient rigidity of the support contour of the open box formed by the strips, which can be easily deformed during the assembly of the stack if it is not precisely aligned with the contour of the loaded box of the same type installed on it, especially several loaded boxes. Such a box, which has a single glue seam and a bottom fastened from two halves with an adhesive tape, is often supplemented in practice with a plug-in one-piece insert along the bottom contour.

Known open tray similar to the claimed utility model purpose, having a solid bottom with walls adjacent to the bottom and two bendable strips for organizing stacking, which can be considered as the closest analogue [Electronic resource] // Home / Office Delivery: Official site.- Access mode: https: //do-dostavka.m/productypechene-akulchev-kupelka-s-iablokom-i-koricei-750-g/ (Date of access 01.02.2021), the design of which is oriented towards machine assembly-gluing and in which glue connection in the regions of the top of each volumetric upper corner of the tray is made between the connecting flap, which is a continuation of the strip mating with the wall, and the flap bent inside the tray towards the adjacent wall, while the folded flaps are in contact with the adjacent wall.

The disadvantages of the closest analogue include the fact that for the assembly of the tray it is required to perform additional adhesive joints of the adjacent walls with each valve bent away from the walls of the walls, that is, each corner of the tray has two gluing areas. It is through the additional overlapping glue joints that the loaded tray is destroyed by tearing off the adjacent wall when trying to move the tray horizontally by gripping the adjacent wall. The cut of the construction of the closest analogue can be glued manually, but requires fixtures, and the productivity of such work is deliberately low.

In addition, a flat horizontal strip with a thickness of one layer of material has a small rigidity compared to a reinforced wall and, if loaded from above, with an error in the positioning of the upper trays, it can cause deformation of the strip or two strips with the subsequent skewing of the stack.

The task of the utility model is to improve and develop modern group packaging used in trade in terms of improving the design of an open tray.

The technical result of the utility model is the design of a two-strip tray with a solid bottom, predominantly for filling both light and heavy food products with the least possible material consumption in the manufacture of tray blanks, the possibility of automatic and manual assembly of the tray directly at the packaging consumer, as well as ensuring the possibility of reliable stacking of trays. when transporting and displaying products in sales areas.

The technical result of the utility model is achieved by the fact that a two-strip tray made of corrugated cardboard with a solid bottom for placing mainly food products is made of a flat rectangular blank, divided by cuts, notches and fold lines on the bottom, walls, strips and connecting and power valves adjacent to the walls and strips characterized in that each of the two opposite load-bearing walls of the tray carries a bent inside the volume of the tray along the fold line located at the height of the tray parallel to the plane of the bottom of the bar resting on the ends oriented from the corners of the tray in the opposite direction and made in the form of extended sections of the extension of the ends of the two closing the contour of the tray the walls of the power valves, and two made in the form of extensions of the ends of the strip adjacent to the load-bearing wall by connecting valves bent along the bending lines are fastened to the walls closing the contour of the tray.

The essence of the utility model is illustrated by drawings, where

in fig. 1 shows the appearance of the closest analogue - a two-plate tray with a solid bottom;

in fig. 2 shows a flat billet of a two-strip tray with a solid bottom in the form of a reamer for cutting corrugated cardboard with an indication of the tray elements;

in fig. 3 shows the appearance of a two-strip solid bottom tray in the assembled state;

in fig. 4 shows a flat billet of a two-strip tray with a solid bottom in the form of a reamer for cutting corrugated cardboard with places of execution of elements of locks of the "slot-tongue" type with lines of weakened strength of the material along the contours of these elements, allowing to perform both machine gluing and manual assembly of the tray;

in fig. 5 shows the appearance of a two-strip chute with a solid bottom, assembled with the help of elements of locks of the "slot-tongue" type;

in fig. 6 shows a flat billet of a two-strip tray with a solid bottom in the form of a reamer for cutting corrugated cardboard with the image of a foldable element in the wall closing the tray contour, which provides a convenient grip of the tray located higher in the stack;

in fig. 7 shows the appearance of a two-strip chute with a solid bottom having bendable elements on the walls closing the contour of the chute in the assembled state;

in fig. 8 shows a flat billet of a two-strip tray with a solid bottom and double-thickness walls closing the tray contour in the form of a reamer for cutting corrugated cardboard with an indication of the tray elements;

in fig. 9 shows the appearance of a double-lath chute with a solid bottom and double-thickness walls closing the contour of the chute in the assembled state;

in fig. 10 shows a flat billet of a two-strip tray with a solid bottom and double-thickness walls closing the tray contour in the form of a reamer for cutting corrugated cardboard with an indication of the tray elements in a universal design;

in fig. 11 shows the external view of a two-strip chute with a solid bottom and double thickness walls closing the contour of the chute in a universal design and assembled state.

A two-strip tray with a solid bottom is made of a flat rectangular workpiece (Fig. 2), divided by cuts (solid lines that form the outer contour of the workpiece and the contours of the cutouts) and fold lines (dashed lines) into sections that form a solid bottom 1, symmetric with respect to the central axes of symmetry two load-bearing walls 4, carrying one strip 5 each, having two connecting valves 6, two walls 2 closing the contour of the tray and four power valves 3.

A two-plate tray using automatic assembly by gluing is assembled by setting walls 2 and associated power valves 3 along a common bend line with a bottom in a vertical position relative to bottom 1, followed by bending of power valves 3 along a common bending line of power wall 4 with bottom 1 in the opposite direction. The next stage of gluing includes the application of glue in the places of future contact of the connecting valves 6 and the walls closing the contour of the tray 2. At the last stage of the assembly, the bending of the load-bearing walls 4 is performed until contact with the power valves 3, the bend of the strips 5 into the volume of the tray until contact with the power valves 3, the bend connecting valves 6 to power contact with the walls 2 closing the contour of the tray and obtaining an adhesive joint in four areas of contact of the walls with the connecting valves. The appearance of the assembled tray is shown in FIG. 3.

The connection made forms four spatial rigid corners in the upper part of the tray, formed by the two sides of the tray 2 and 4 and by the bar 5, supported by the power valves 3 with the fixation of the formed rigid figure by the connecting valve 6 in contact with the side of the tray 4. By using the power valves 3 as of the elements reinforcing the bar, the tray can be made more rigid, as well as with a greater length of the load-bearing wall 4 in comparison with the closest analogue, in which the bar, made in the form of a flat platform, has much less resistance to deflection when loaded from above and is not reinforced from below by power elements , since the power valves, in contrast to the proposed solution, are directed along the walls that do not have strips, as can be seen from FIG. one.

Unlike the closest analogue, which requires four additional areas of connection of the walls closing the contour of the tray with the walls supporting the strips, the adhesive connection is performed for each of the four corners of the inventive tray only in one contact area, which reduces the consumption of the adhesive by about half.

The thickness of the corrugated cardboard, due to the greater rigidity of the structure of the inventive tray in comparison with the closest analogue, can be assigned less, which will ensure the achievement of the technical result in terms of achieving a lower material consumption.

On the other hand, for the manufacture of a tray with optimal complex characteristics (strength, stiffness, cost), corrugated board of a lower class with lower strength and rigidity can be used than for the construction of the tray of the closest analogue.

The listed features of the proposed tray and the resulting properties directly affect the achievement of the technical result and for this reason are essential.

It should be noted that a two-strip tray can be assembled by gluing and without the use of automated gluing machines without loss of operational properties, but with lower productivity. It is possible to manually assemble the tray by making the connection according to the above scheme by placing staples in the contact areas of the connecting valves 6 with the walls 2 closing the tray contour, that is, in the places where the adhesive is applied.

Possible execution of the proposed tray, which does not require gluing.

FIG. 4 shows a flat billet of a two-strip tray in the form of a reamer for cutting corrugated cardboard with the places of execution of the elements of the “slot-tongue” type locks, which allow performing both machine gluing and manual assembly of the tray both with and without the use of glue. A feature of the cut of the inventive tray is the execution of the free end part of each connecting flap 6 mated with the strip 5, designed in the form of a tongue 7 of the lead-in part of a locking lock of the "slot-tongue" type, having slots and a cutout 8 in appropriate places on the wall 2 closing the contour of the tray. The lock 7 is inserted into the cutout 8 and is fixed by elastic forces in the slot of the wall 2 that closes the contour of the tray, reliably maintaining a tight force contact between the walls 2 and 4 of the tray, forming, when using the connecting valve 6, a rigid volumetric angle in the upper part of the tray.

It should be emphasized the versatility of the considered version of the two-strip tray, which can be used both for automated gluing and for manual assembly without any changes in design and cut. There are no obstacles for automated gluing of the tray, which has elements of locks for manual assembly, which is another advantage over the closest analogue.

To ensure convenient and reliable removal of the two-strip tray from the stack when gripping with two hands, in the upper part of the walls 2 closing the tray contour, elements 9 bent inside the tray volume can be made, shaped with two cuts and a fold line (Fig. 6, Fig. 7). The presence of such elements improves the conditions for the use and movement of trays in sales areas. When the elements 9 are fastened to the walls 2, the rigidity of the walls 2 closing the contour of the tray increases due to the local doubling of the thickness in the region of the middle of the loaded wall without additional material, which contributes to the achievement of the technical effect of the utility model in terms of improving the design of the tray. Fastening the load-bearing wall 4 by gluing with the power valves 3 in contact with the wall increases the rigidity of the tray structure.

To use a tray with a relatively heavy filling, for example, cans or glass cans, it may be necessary to make the walls 2 that close the contour of the tray more rigid than in the case of strengthening the walls with bendable elements 9. The solution to the problem of increasing the rigidity of wall 2 is performed by double increasing its height relative to the height of the load-bearing walls (Fig. 8) and bending into the volume of the tray along the double fold line 10 (Fig. 9). In this case, the assembly of the tray by gluing is performed in the same sequence, taking into account the additional operation of bending wall 2 with the implementation of the adhesive connection in the same places as for the tray with wall 2 of single thickness.

The universal design of a tray with a wall of increased rigidity by fastening with fixing locks of the "slot-tongue" type is performed in the same way as in the case of a tray with a wall of single thickness (Fig. 11, Fig. 5), while the cuts and slots of the locks on the closing the contour of the tray to the wall is made symmetrically and mirrored with respect to the double fold line on the wall 2 (Fig. 10) and are aligned when the wall thickness is doubled by bending inside the volume of the tray.

The complex advantages of the claimed utility model in comparison with the closest analogue, determined by its design, are as follows:

in the possibility of choosing the most suitable version of the tray for an automated or manual assembly method;

in the consistency and simplicity of destruction actions for disposal;

in greater rigidity and strength of a two-strip tray with a solid bottom with an equal amount of material used for the workpiece, which is especially important for large batches of manufacture and use of trays;

limiting the billet of a two-strip tray to a rectangular contour without protruding elements, which simplifies the cutting of a cut, reduces material consumption, minimizes waste and ensures their reliable separation;

in the possibility of using the structure for both light and heavy filling,

which in general solves the problem of a utility model and provides a synergistic technical result.

The implementation of the utility model was verified during testing of a pilot batch of trays with a solid bottom having dimensions in length, width and height of 550x370x130 mm, respectively, and made of corrugated three-layer cardboard with a thickness of 4 mm. The trays were assembled from blanks obtained by plotter cutting in all cut options shown in Fig. 2, 4, 6, 8, 10. Typical variants of fastening the connecting valves 6 and the walls 4 closing the contour of the tray by gluing, brackets and locking locks of the "tongue-slot" type with the location of the slots on the walls 2, and the tongues on the connecting valves 6 of the strip 5 Loading of all tested versions of a tray made in accordance with the claimed utility model with cans and glass jars with a nominal and double load showed that the claimed two-strip tray with a solid bottom and reinforced by power valves with slats guaranteed to withstand filling, moving, stacking and transportation without destruction and disclosure tray. As a result of the tests, all the properties of the claimed utility model have been fully confirmed, the claimed technical result has been achieved.

Claims (7)

1. A two-strip tray made of corrugated cardboard with a solid bottom for placing mainly food products is made of a flat rectangular blank, divided by cuts, notches and fold lines on the bottom, walls, strips and connecting and power valves adjacent to the walls and strips, characterized in that each from two opposite load-bearing walls of the tray carries a bent inside the volume of the tray along the bend line located at the height of the tray parallel to the bottom plane, resting on the power valves oriented from the corners of the tray in the opposite direction and made in the form of extended sections of the extension of the ends of the two walls closing the circuit of the tray, and two made in the form of extensions of the ends of the strip adjacent to the load-bearing wall, by connecting valves bent along the bending lines, it is fastened to the walls closing the contour of the tray. 2. A two-strip tray according to claim 1, characterized in that the fastening of the connecting flaps of the strips with the walls closing the tray contour is performed by gluing at the contact points. 3. A two-strip tray according to claim 1, characterized in that the fastening of the connecting flaps of the strips with the walls closing the tray contour is performed by stapling at the contact points. 4. A double-lath tray according to claim 1, characterized in that in the upper part of each wall closing the contour of the tray, a bendable element with the possibility of additional fastening to the wall is highlighted by two cuts connected by a fold line. 5. A two-lath tray according to claim 1, characterized in that the fastening of the power valves with the load-bearing walls is made by gluing at the points of contact. 6. A two-strip tray according to claim 1, characterized in that the fastening of the connecting flaps of the strips with the walls closing the contour of the tray is made using locks of the "tongue-slot" type with the arrangement of the elements of the "tongue" locks on the connecting valves of the bars. 7. A two-strip tray according to claim 1, characterized in that the cut of the walls closing the tray contour is made of double height relative to the height of the load-bearing walls.

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