RU159340U1 - FOLDING TRAY - Google Patents

Abstract

The utility model relates to containers and packaging. The folding tray is formed from a cardboard blank containing a bottom and side walls and end walls that are bent along the inflection lines from the bottom. The end walls are made with valves that are a continuation of the end walls in the direction along the line of inflection of these walls, and the side walls are made on both sides with bends directed at an angle of 45 ° from the corners of the bottom of the tray to the upper edges of these walls. The end wall valves are attached to the side walls on their inner side by means of glue applied to the surface of the valves and / or to the adjacent side wall sections separated by folds. In this case, the end walls from the side of the open opening of the box are made with protruding tongues, which are a continuation of the end walls and are located in the plane of these walls, for placement when stacked in through holes made on the bend line of the end walls from the bottom. 8 ill.

Description

The utility model relates to containers and packaging and relates to the design of a folding tray or box intended for storage and transportation of food and industrial goods.

A folding box or folding tray is a very convenient package. The convenience of this package is that when folded it does not take up much space, which becomes very cost-effective for its transportation and transportation. When folded, a pack of such packages also takes up little space, which makes it convenient to place such packs directly at packaging posts.

A folding cardboard box made of one flat blank, divided by bending lines into sections, forming the main bottom of a rectangular shape and perpendicular to it, the first pair of side walls, to each of which at its end is attached a main valve bent along the corresponding bending line perpendicular to the main bottom with it with a locking assembly, and the second pair of side walls is formed by the corresponding main valves closed between themselves, the main bottom is equipped with two bent to the inner surface l main bottom and forming an additional bottom made rectangular additional valves, while the main bottom is made longer than the length of the side walls of the first pair, with the formation of external flanges (RU 116839, B65D 5/00, publ. 10.06.2012).

The disadvantage of this box is its complexity in terms of the formation of protrusions in the bottom and the formation of a two-layer bottom.

Known folding tray formed from a cardboard blank of corrugated cardboard containing a bottom, side walls and stiffeners, the bottom has a rectangular shape, the stiffeners are a continuation of two opposite side walls, made in pairs on each side wall and rigidly attached to other side walls with the inner side of the tray, and the side walls to which the stiffening ribs are attached have bends on both sides directed at an angle of 45 ° from the corners of the bottom of the tray to its upper edge (RU 18696, B65D 5/36, published on July 10, 2001).

In this tray, the stiffeners are in the form of isosceles right-angled triangles, the hypotenuses of which coincide with the fold lines of the side walls, and ventilation holes are made in the side walls.

Such a box is economical to manufacture, convenient to operate, however, its operational efficiency is still not high enough, due to the peculiarity of its design. The design of such a tray is built on the possibility of folding and unfolding the tray to demonstrate the goods. But such a tray cannot be stacked, as there are no means of reliably supporting one tray on another. This makes it impossible to simultaneously move several trays that could be stacked one on top of the other.

This utility model is aimed at achieving a technical result, which consists in improving performance due to the formation of elements that allow folding trays to be stacked one on top of the other in the stack without sliding the drawers and without failures in the stack.

The specified technical result is achieved in that in a folding tray formed of a cardboard blank containing the bottom and side walls and end walls folded along the inflection lines from the bottom, the end walls are made with valves that are an extension of the end walls in the direction along the inflection line of these walls, and side walls are made on both sides with bends directed at an angle of 45 ° from the corners of the bottom of the tray to the upper edges of these walls, while the valves of the end walls are attached to the side walls from their inner side with using glue applied to the surface of the valves and / or adjacent to these valves sections of the side walls separated by folds, at least two opposing walls on the side of the open opening of the tray are made with protruding tongues, which are an extension of these walls and are located in the plane of these walls to accommodate them when stacked in through holes made on the bend line of these walls from the bottom.

In addition, the end walls and adjacent valves can be made with protrusions for forming support angular elements for placing on them the top of the upper box located in the stack.

These features are significant and are interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

The present utility model is illustrated by a concrete example of execution, which, however, is not the only possible, but clearly demonstrate the possibility of achieving the desired technical result.

In FIG. 1 shows a blank for a folding box;

FIG. 2 shows the design of the side walls with folding parts;

FIG. 3 - shows the position of the side walls when folding the tray;

FIG. 4 - shows the application of an adhesive composition for connecting the walls to each other;

FIG. 5 - folding box when folded;

FIG. 6 - folding the box;

FIG. 7 - box in the unfolded position;

FIG. 8 - presents a stack of folding drawers.

According to this utility model, the design of a folding tray is considered, allowing it to be used in stacking mode.

A folding tray is formed from a cardboard blank (Fig. 1). The tray contains a bottom 1 and long side walls 2 that are bent along the inflection lines from the bottom and short end walls 3. The side walls 2 from the side adjacent to the end walls are made on both sides with folds 4 directed at an angle of 45 ° from the corners of the bottom of the tray to the upper edges these walls. Thus, edge sections 5 are formed on the side walls of a triangular shape, which can bend along folds (lines of weakened section) from the surface of the central part of the side walls 2 (Fig. 2).

The end walls 3 are made with valves 6, which are a continuation of the end walls in the direction along the line of inflection of these walls relative to the bottom 1. Valve 6 by dissection of the material in the workpiece is separated from the side walls.

In the assembled design of the valve tray, 6 end walls are attached to the side walls on their inner side with the help of glue applied to the surface of the valves 6 and / or the adjacent sections 5 of the triangular shape of the side walls.

In FIG. 2, 3 and 4 show the moments of fastening the walls while folding the tray. To do this, first side walls 2 are bent from the bottom (Fig. 2) and edge sections 5 are bent from these walls in triangular shape, superimposing them for each side wall on its central part, as shown in FIG. 3. After that, on the valve 6 of the end walls from their outer side and / or on the externally located surfaces of a triangular shape, the edge sections 5 are applied with adhesive (Fig. 4, adhesive points 7 are shown by crosses). Then the end walls pressed against them by valves 6 are laid on a triangular shape of the edge sections 5. Allow the adhesive composition to dry. As a result, we get a tray in an assembled flat villa, as shown in FIG. 5. In this assembly, the end wall valves are connected to the side walls.

To open the assembled assembly and form from it a box-shaped tray with a bottom and an open top, it is necessary to pull the end walls and straighten the assembly, as shown in FIG. 6. As a result, we get an open box-shaped tray (Fig. 7). To fold the tray, pressure is exerted externally on the side walls, while the tray comes first to the position shown in FIG. 6, and then folds and forms a flat structure, as shown in FIG. 5.

A feature of the design of this folding tray is that at least two walls opposite each other from the side of the open opening of the tray are made with protruding tongues 8, which are a continuation of these walls. In the examples of FIG. 1-8, such protruding tabs 8 are made on the end walls 3. These protruding tabs 8 are located in the plane of these walls. These tabs are used to place them when stacked in through holes 9 made on the inflection line of these end walls from the bottom. Thus, on each end wall there is one tongue and one hole. The same solution can be made for the side walls or for the end and side walls at the same time.

When the tray is opened and the box box is formed from the blank, the protruding tongues are located in the plane of the end walls. And when stacking, when an unfolded tray (with goods or product) is laid on a pallet 10 laid on a pallet and the next unfolded tray (with goods or product) is installed on top with the support resting on the walls of the lower-lying tray (Fig. 8). In this case, the protruding tabs 8 of the lower tray enter the holes of the end wall of the upper tray and fix it from displacements in the direction of the end walls and from displacements in the direction of the side walls. Thus, the location of the language of one tray in the hole of the upper tray forms a locking device or latch trays to eliminate their relative displacements. If the tabs and holes are made on all walls of the tray, then this solution enhances the indestructibility of the stack.

As well as a possible embodiment of the folding tray, the end walls and the adjacent valves can be made with protrusions 11 to form the supporting corner elements 12 for placing on them the top of the upper box located in the stack. This allows ventilation channels 13 to be formed between the trays to ventilate the products and to monitor the condition of the products in each drawer.

This utility model is industrially applicable, can be made using corrugated cardboard box forming technologies and allows the formation of non-collapsible stacks.

Claims (2)

1. A folding tray formed from a cardboard blank containing the bottom and end walls bent along the inflection lines from the bottom, end walls are made with valves that extend the end walls in the direction along the inflection line of these walls, and the side walls are made on both sides with bends directed at an angle of 45 ° from the corners of the bottom of the tray to the upper edges of these walls, while the valves of the end walls are attached to the side walls from the inside using adhesive applied to the surface of the valves and / and whether on adjacent to these valves sections of the side walls separated by folds, characterized in that at least two opposing walls on the side of the open opening of the tray are made with protruding tongues that are an extension of these walls and located in the plane of these walls, for placing them when stacked in through holes made on the bend line of these walls from the bottom. 2. A folding tray according to claim 1, characterized in that the end walls and adjacent valves are made with protrusions for forming support angular elements for placing on them the bottom of the upper box located in the stack.

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