ES1300569U - Cardboard packaging for large volume products (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Cardboard packaging for large-volume products, which is of the type that is made from the development of a die-cut cardboard sheet, in which two larger side faces are defined from transversal fold lines (1) and two smaller lateral faces (2), as well as an end tab (6) for lateral reinforcement, where both the larger lateral faces (1) and the smaller lateral faces (2) emerge below each rectangular sector (4-5) that determine the bottom of the container, whether open or closed, side faces that are extended at the top in respective folding sectors (9) that fold on themselves through respective end sectors (11) to define a double wall, which is stabilizes vertically by means of tabs (12) that can be inserted into grooves (13),as well as laterally through end appendices (10) emerging from the sides of two of the folding sectors (9) and nestable in the holes defined by the double wall of the projections of the adjacent side walls, characterized in that the rectangular sectors (5) that emerge from the smaller side walls, and that in the assembly of the box are superimposed on top of the rectangular sectors (4) that emerge from the larger side walls, present a notch (7) in correspondence with the vertices of the base of the box, which determines a seat for reception and immobilization of the inner end of stiffening mandrels (8) of the container,having foreseen that the folding sectors (9) that emerge from the smaller lateral faces laterally include some bevels (14) that in the assembly of the cantilever or twist of the mouth of the container define a seat or stepped recess determining a means of reception and immobilization from the upper end of the stiffening mandrels (8) of the container. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Cardboard packaging for large volume products

TECHNIQUE SECTOR

The present invention refers to a cardboard container for large-volume products, such as watermelons, melons, potato sacks, orange mesh, etc., whose large volume forces the container to be reinforced in correspondence with its vertical edges, by using stiffening mandrels.

The object of the invention is to provide a container with a structure that facilitates its automatic assembly by means of robotic machinery, with an assembly process different from the conventional one that avoids having to alternate several phases of automated assembly with phases of assembly by hand by the hand of specialized work.

BACKGROUND OF THE INVENTION

Large cardboard boxes are known that are normally mounted on pallets, boxes that logically have a great load capacity but must consequently support a significant weight.

These types of boxes, for their rigidity, present in correspondence with their vertical edges some die cuts that will determine in the assembly internal rings through which tubular struts, of circular section and cardboard, are passed, providing great rigidity and resistance. to great axial efforts, so that these struts coincide in length with the height of the box, so that through them the load is transmitted to the cardboard.

This type of box also has the particularity that to avoid undesired deformations in the mouth, the side walls are extended in folding flaps inwards which in turn fold 180°, forming an internal perimeter reinforcement cantilever.

Although this type of container satisfactorily fulfills the function for which it was intended, from an automated assembly point of view it presents a problem, and that is that this configuration means having to form the bottom of the box using automated machinery in the first instance, to then manually introduce the stiffening mandrels and then finish obtaining the reinforcement of the mouth of the box again by means of automated machinery.

Thus, this operational sequence means having to alternate automated assembly phases with manual assembly phases by specialized labor, it being evident that the times of one phase and the other are not the same, which negatively affects the performance of installation, as far as total executive times are concerned.

EXPLANATION OF THE INVENTION

The recommended cardboard packaging for large-volume products satisfactorily resolves the aforementioned problem based on a simple but effective solution that allows the operational sequence of packaging assembly to be completely varied, so that it can be formed automatically. the entire container in a single automatic process, so that in a final phase the stiffening mandrels are manually inserted into the completely finished box.

To this end, based on the structuring of this type of container, it has been planned to eliminate the use of die-cuts on the vertical edges that determined internal rings in the assembly through which tubular struts were passed, so that they stabilize in the interior of the container from seats provided both in the bottom of the box and in correspondence with the internal face of the perimeter projection at the level of the upper vertices of said container.

This allows the container assembly process to be completely varied, so that it can be fully automated, with the exception of the implementation of the aforementioned stiffening mandrels, which, as previously stated, will be implemented in a final phase quickly and efficiently. simple, by sliding and coupling its ends in the mentioned reception seats thereof.

More specifically, it has been provided that the flanges that emerge from the larger or smaller side walls that determine the base of the box, which can have an open or closed bottom, include cutouts in correspondence with the lower edges of the box, in such a way that these recesses present dimensions in plan according to the section of the stiffening mandrels, remaining superimposed and consequently sealed externally by the complementary flange emerging from the adjoining side wall, and therefore defining a stepped seat of thickness according to the thickness of the the cardboard sheet used, sufficient to laterally retain the stiffening mandrel, which, as has been repeatedly said, will be installed last, once the mouth of the box is obtained.

In this sense, the seat that is foreseen for these stiffening mandrels in correspondence with the internal face of the perimeter cantilever at the level of the upper vertices of said container is formed through the upper flanges that emerge from the greater and lesser side walls of the container. container, so that these upper tabs fold inwards to fold back on themselves 180° and engage through tabs that fit into respective slots established in correspondence with the upper edge of said larger and smaller side walls, forming a cantilever internal perimeter reinforcement with a double-walled structure, in which the lower wall has holes in correspondence with the upper vertices that define the already mentioned lateral retention seats for the upper free ends for stiffening the container.

In this way, the container will be obtained in a completely automated way in a linear process in which both the bottom and the mouth of the container are obtained through the corresponding machinery, to then introduce the four stiffening mandrels through said mouth and formed, to slide them up to the four internal vertical edges until they fit into the upper and lower seats provided in said areas, thus leaving the stiffening mandrels perfectly stabilized both laterally and superiorly.

BRIEF DESCRIPTION OF THE DRAWINGS

To complement the description that is going to be made below and in order to help a better understanding of the characteristics of the invention, according to a preferred example of its practical embodiment, a set of drawings is attached as an integral part of said description. where, with an illustrative and non-limiting nature, the following has been represented:

Figure 1.- Shows a plan development view of a cardboard container for large-volume products made in accordance with the object of the present invention.

Figures 2 to 7.- Show respective perspective views of the sequence of operative phases for assembling the container of figure 1.

Figure 8.- Shows a transparent perspective view, the fully assembled container.

Figure 9.- Shows, finally, a perspective detail of the container of the invention at the interior level of one of its edges, being able to observe the retention means provided for the mandrels that stiffen the container.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the outlined figures, it can be seen how the container of the invention is constituted from the development of a sheet of die-cut cardboard, in which, based on transversal folding lines, two larger lateral faces (1) and two smaller lateral faces (2), laterally assembled through an extreme tongue (6), so that both the larger lateral faces (1) and the smaller lateral faces (2) emerge below each respective rectangular sectors (4-5) that determine the bottom of the container, which depending on its width may have an open or closed bottom, in the first case to be implanted on a pallet or the like, side faces from which separate folding sectors (9) emerge at the top, determining a cantilever or internal perimeter reinforcement for the mouth of the container, which folds on itself through of respective end sectors (11) to define a double wall, which is stabilized vertically by means of tongues (12) that can be locked into slots (13) provided in correspondence with the folding lines of said folding sectors (9), while laterally the cantilever is stabilized by means of end appendages (10) provided in two of the folding sectors (9), appendages intended to be inserted between the gap defined by the double wall of the cantilever of the adjacent side wall.

Well then, in accordance with the essence of the invention, it has been provided that the rectangular sectors (5) that emerge from the smaller side walls, and that in the assembly of the box are superimposed on top of the rectangular sectors (4) that emerge from the larger side walls, present a notch (7) in correspondence with the vertices of the base of the box, which determines a reception and immobilization seat for the stiffening mandrels (8) of the container.

In a similar way, provision has been made for the folding sectors (9) that emerge from the smaller lateral faces to laterally include some bevels (14) which, in the reinforcement of the cantilever or reinforcement of the mouthpiece, define a stepped seat or recess in the double wall that it participates in said cantilever at the level of its edges, a seat that determines a reception and immobilization means for the stiffening mandrels (8) of the container.

From this structuring and as shown in figures 2 to 8, the assembly of the container can be done both manually and automatically, so that in either case it starts from the folding tubular structure that generates the laminar body when fixing the extreme tab (6) on the free edge of the opposite larger side wall (1), which will be supplied folded for a minimum volumetric occupation (figure 2), to proceed with the unfolding and formation of the tubular body of figure 3, to then form the bottom or base of the container, as shown in figure 4 and then the projection or perimeter reinforcement of the mouth of the container, as shown in figure 5, being able, as said, to carry out this entire process in an automated way without interruptions, so that in a later phase, the one shown in figure 6, the stiffening mandrels (8) are introduced through the reinforced mouth, so that once they rest on the base of the box (figure 7), they will move manually towards the internal and vertical edges of the box (figure 8), position in which the upper and lower ends of said stiffening mandrels (8) will be automatically locked in the seats defined by the bevels (14) and cutouts (7), all as shown in the detail of figure 9.

As previously stated, this assembly operation, different from the usual one, makes it possible to reduce the total times for assembling the boxes.

Finally, it only remains to point out that, as is evident, the distribution of bevels (14), end sectors (11) and notches (7) in elements that emerge from the larger side faces instead of the smaller ones and vice versa obeys mere criteria. of design, being equivalent solutions, in which the invention could also be embodied.

Claims (1)

1a.- Cardboard packaging for large-volume products, which, being of the type that is formed from the development of a die-cut cardboard sheet, in which two larger lateral faces are defined from transversal folding lines (1 ) and two smaller lateral faces (2), as well as an end tab (6) for lateral reinforcement, where both the larger lateral faces (1) and the smaller lateral faces (2) emerge below each rectangular sector (4- 5) that determine the bottom of the container, whether open or closed, side faces that are extended at the top in respective folding sectors (9) that fold on themselves through respective end sectors (11) to define a double wall, which it is stabilized vertically by means of tabs (12) that can be inserted into slots (13), as well as laterally through end appendixes (10) emerging from the sides of two of the folding sectors (9) and that can be inserted into the holes defined by the double wall of the projections of the contiguous side walls, characterized in that the rectangular sectors (5) that emerge from the smaller side walls, and that in the assembly of the box are superimposed on top of the rectangular sectors (4) that emerge from the side walls larger, have a notch in correspondence with the vertices of the base of the box, which determines a seat for reception and immobilization of the lower end of stiffening mandrels (8) of the container, having foreseen that the folding sectors (9) that emerge from the The smaller side faces laterally include some bevels (14) which, in the reinforcement of the cantilever or reinforcement of the mouth of the container, define a seat or stepped recess determining a means for receiving and immobilizing the upper end of the mandrels for stiffening the container.