ES2489190T3 - One piece foldable reinforced case - Google Patents

Abstract

A reinforced, collapsible box (10) comprising a collapsible structure that folds along preformed fold lines (11), wherein the box is made entirely of corrugated cardboard and/or composite materials and is designed to provide a support for loads placed perpendicular to the base, whereby the entire box is made as a single piece starting from a single die and has side supports (26) extending over two opposite edges of the base, first fins intermediate (13) extending from the other two edges, second external flaps (14) extending from said intermediate flaps (13), lateral flaps (15, 16) which are divided by fold lines (18) from sections (19) which connect said lateral supports (26) to said first intermediate fins (13), the lateral fins (15, 16) extending from the corner sections (19) on both sides of the second fins (14)external, by which the matrix from which the box is built can be folded thanks to the folding lines (21) which extend at 45º in the corner sections, and in which the fins (15, 16 ) sides have flanges (24) which, during assembly, are inserted into corresponding receptacles (23) characterized in that said receptacles (23) have elastic cuts (23') present on the corner section of the base, and in that said receptacles they accommodate additional flanges (22) present on the central outer wings (14), and in that said receptacles are doubled in size so as to accommodate pairs of these flanges (22, 24).

Description

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E11723669

05-08-2014

DESCRIPTION

One piece foldable reinforced case

Technical field

The present invention relates to a foldable reinforced single-piece box, for the packaging, transport and storage of products in general, particularly in the sectors of fruit, vegetables and industry in which the box has the characteristics of Be tough, stable, easy to stack and simple to assemble.

The present invention can be used advantageously in the sector for the transport, storage and sale of fruit and vegetables and other goods in the food sector, in the retail and wholesale distribution industry and also in the industrial sector.

Prior art

The prior art has long included boxes made entirely of corrugated cardboard and / or composite materials to contain fruit and / or vegetables.

Boxes made of corrugated cardboard and / or composite materials are widely used in the fruit and vegetable sector and in other non-food sectors but suffer from a series of related problems, in general, with the fact that the production process requires Considerable quantities of raw material with large quantities of cardboard that are disposed of as waste in order to produce reinforced corners, especially on the sides of the smaller sides or the faces of the larger sides of the box.

This often leads to the manufacture of boxes without horizontal or lateral support elements, colloquially known in the sector as "pavements", or to the manufacture of boxes with lateral edges with a uniform height in order to avoid a considerable expense of cardboard and / or other composite materials.

Another drawback is that a box made of cardboard and / or composite materials is often supplied as a flat die which is difficult to assemble.

For the same reasons, cardboard boxes and / or composite material of the known type that are already assembled are difficult to deploy and return to their flat state necessary to facilitate storage in the preparation for reuse or for recycling or recycling operations. destruction prior to disposal as waste.

French patent document FR-A-2236738 discloses a one-piece cardboard box formed from a matrix having a bottom panel, side and end wall panels, corner connector panels intersecting edges of which are attached, respectively, to a side and end wall panel, a locking panel attached to at least one of the connector panels at each end of the cardboard box and, optionally, one or more top panels. The connector panels have a diagonal fold line that divides the panel into a first triangular reinforcement section fixed to an end wall panel and a second triangular reinforcement section fixed to a side wall panel. The locking panel is attached to the second triangular section of the connector panel. In the cardboard assembly box, the triangular sections of each connector panel are folded in front contact and arranged outside the end wall panel with the first triangular section sandwiched between the end wall panel and the second triangular section. The locking panel extends over the upper edge of the first triangular section and the end wall panel inside the cardboard box where it is fixed in front contact with the inner surface of the end wall panel to maintain the box cardboard in the mounted position.

Description of the invention

The purpose of the present invention is to overcome the drawbacks and disadvantages of the prior art by providing a one-piece box with reinforced corners, which can be used, advantageously, for fruit and vegetable products, which can be stacked a stable way prepared for transport and / or storage conservation.

The invention also provides a one-piece box with reinforced corners of a preset height.

Another purpose of the present invention is to provide a one-piece box with reinforced corners which can be quickly and easily assembled by the personnel who will be loading the box.

A further purpose of the present invention is to provide a one-piece box with reinforced corners which can be manufactured with the minimum amount of raw material needed thereby achieving an economic advantage.

These objectives are achieved by a one-piece box with reinforced corners with the characteristics described in the main claim.

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The claims dependent on this document describe advantageous example embodiments of the invention.

The box according to the present invention comprises a folding structure, folded along preformed folding lines, made entirely of corrugated cardboard and / or composite materials, with suitable elements to provide a solid support for loads at right angles to the bottom of the box itself.

In accordance with the present invention, each side element has a support of the type known colloquially in the sector as "pavement".

The box mounted in this way completely and advantageously solves the problems typical of the known technique.

In addition, the box is made of one piece and, therefore, requires a minimum amount of light corrugated cardboard. At the same time, it provides adequate resistance to share tensions thanks to the mechanical characteristics of corrugated cardboard and / or composite materials.

This one-piece box with reinforced corners has considerable vertical stiffness and solidity, can be easily mounted and solidly stacked on similar boxes. It is also easy to deploy to make it flat to occupy a volume that is a fraction of the space occupied by the open mounted box.

In accordance with the present invention, the structure comprises a base surface comprising the bottom of the box and two lateral surfaces with opposite corners.

Each of the side elements has a lower flap and an upper flap which, during assembly, are inserted into corresponding grooves in the bottom of the box and the pavement respectively.

According to the standards specified by the European Federation of Corrugated Cardboard Manufacturers, the pavement can be on the long side or on the short side of the box.

Brief description of the drawings

Other particularities and advantages of the invention will appear more clearly from the following description of an exemplary embodiment with reference to the attached drawings, given purely by way of non-limiting example, in which:

-Figure 1 shows a plan view of the open box;

- Figures 2 shows the box during assembly.

Description of an example embodiment

With reference to the accompanying drawings, the number 10 indicates in its entirety a one-piece box comprising a structure with reinforced corners folded along preformed fold lines 11 indicated by dashed lines in the figure, made entirely of corrugated cardboard and / or composite materials.

The knife cutting lines 12 are indicated in the figure as continuous unbroken lines.

A feature of the invention is that the smaller sides have two folding fins comprising a first middle fin 13 and a second outer fin 14.

The external fin 14 in turn, comprises lateral fins 15 and 16 which are divided by lateral walls 17 of a predetermined variable width which, when the box is mounted, form the internal corner sections of the box reinforcement.

Another feature of the present invention is that the lateral fins 15 and 16 are divided by folding lines 18 from the corner sections 19 which have a cut 20 located along the folding line 21 at an angle of 45 °.

The outer fins 14 have tabs 22 which are inserted into corresponding receptacles 23 located at opposite edges of the central surface of the cuts 23 ’which provides flexibility. The tabs have a height that is equal to the thickness of the material used.

The lateral fins 15 and 16 also have other tabs 24, which are inserted into the receptacles 23 whose dimensions are calculated as double in order to enable the insertion of the flanges 22 and 24.

There are other receptacles 25 made along the fold lines 21, at an angle of 45 °.

To mount this box, it is sufficient to fold the external fins 14 over the intermediate fins 13 which, in turn, are folded vertically with respect to the central surface and lift the lateral supports 26 thereto

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weather.

In this way, the lateral fins 15 and 16 fold inwards so that the flanges 24 can enter the receptacles 23.

The side walls 17, when the box is assembled, form the internal corner sections of reinforcement of the box and for this reason, the 45 ° are deflected with respect to their folding lines 11 so that they rest on the side supports 26.

During assembly, the corner sections 19 are moved to the vertical position to allow the folding lines 21 to move inwards and so that the cuts 20 remain included in the side walls 17 of reinforcement so that they are maintained closed by these.

A box according to the invention is, therefore, characterized in that it is very quick to mount even with the hands and is, above all, very resistant to compression once it has been assembled.

The compressive strength is provided by the side walls 17 which, once in position, form the inner corner sections of the housing reinforcement.

In addition, the box according to the present invention can be made with materials with grams per meter lower than the current materials while maintaining the same mechanical behavior.

The box according to the present invention can be made by limiting the cuttings and waste to the minimum necessary to prepare the box.

In addition, the volume is the same as that of the original material when it is flat. The solution according to the present invention enables a considerable reduction in costs throughout the production process and the use in comparison with traditional means; Hand assembly is the same as machine assembly.

The solution according to the present invention makes it possible to dispense with the use of paraffin and glue for assembly operations.

The product of this design can be constructed of any type of cardboard.

The system of joining by introduction of eyelashes in receptacles provides a resistance to "warping" which is the same as that of comparable products joined with glue.

Naturally, although the principle of the invention remains the same, construction details and embodiments may vary with respect to what has been described and illustrated purely by way of example, without departing from the scope of the present invention as defined in the attached claims.

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Claims (9)

5 10 fifteen twenty 25 30 35 E11723669 05-08-2014 1.-A foldable, reinforced box (10), comprising a folding structure that folds along lines (11) preformed folding, in which the box is made entirely of corrugated cardboard and / or composite materials and is designed to provide a support for loads placed perpendicular to the base, by which the box is made entirely as a single piece which starts from a single matrix and has lateral supports (26) that extend over two opposite edges of the base, first intermediate fins (13) that extend from the other two edges, second external fins (14) that extend from said intermediate fins (13), lateral fins (15, 16) which are divided by fold lines (18) from corner sections (19) which connect said lateral supports (26) to said first intermediate fins (13) , extending the lateral fins (15, 16) from the corner sections (19) on both sides of the second external fins (14), by which the matrix from which the box is constructed can be folded thanks to the folding lines (21) which extend at 45 ° in the corner sections, and in which the lateral fins (15, 16) have tabs (24) which, during assembly, are inserted into corresponding receptacles ( 23) characterized in that said receptacles (23) have elastic cuts (23 ') present on the corner section of the base, and because said receptacles accommodate additional flanges (22) present on the central external fins (14), and because said receptacles they have a double size so that they accommodate pairs of these tabs (22, 24). 2.-The folding box (10), reinforced according to the previous claim, characterized in that the supports can be made on the long sides or the short sides of the box. 3. The one-piece box according to claim 1, characterized in that the lateral wings (15, 16) are divided by folding lines (18) from the corner sections (19) which have a cut (20 ) located along the folding line (21) at an angle of 45 °. 4. The one-piece box according to claim 1, characterized in that the folding lines (18) comprise cut lines or split lines or semi-cut lines. 5. The one-piece box according to claim 1, characterized in that the tabs (22, 24) have a height that is equal to the thickness of the material used. 6. The box according to any one of the preceding claims, characterized in that there are other receptacles (25) made along the fold lines (21), at an angle of 45 °. 7. The box according to any one of the preceding claims, characterized in that during the assembly of the box the machine automatically folds the long sides and then lifts the heads (13, 14) so that the tabs (22 , 24) can be inserted into the receptacles (23) on the corner section (19). 8. The box according to any one of the preceding claims, characterized in that the lateral fins (15, 16) fold inwards so that the flanges (24) are inserted into the receptacles (23). 9. The box according to any one of the preceding claims, characterized in that during assembly the corner sections (19) are moved to the vertical position to allow the folding lines (21) to move inwards and to allow the cuts (20) to remain included in the lateral reinforcing walls (17) so that they are kept closed by them. 5