ES1059148U - Compact tray for transport and storage of perishable products cardboard, preferably contained in tubs. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Compact cardboard tray for the transport and storage of perishable products, preferably contained in tubs, of the type that are constituted from the development of a compact cardboard sheet equipped with folding and cutting lines that define after assembly, some end caps (1) that have extreme extensions that make up corner reinforcements (4) to facilitate stacking between trays, and some side walls (2) that have a wide flap (3) that folds and leans on the interior of said side walls (2), characterized in that the corner reinforcements (4) have a prismatic configuration with a triangular section, of height coinciding with the height of the end wall (1), whose hypotenuse or diagonal sector (5) forms an angle to with the end cap (1) between 20º and 25º minimizing the space occupied by the reinforcements inside the tray, thus defining a large useful volume. (Machine-translation by Google Translate, not legally binding)

Description

Compact cardboard tray for transport and storage of perishable products, preferably contained in tubs.

Object of the invention

The present invention relates to a tray of compact cardboard that is of preferred application to facilitate the transport and storage of containers such as tubs or similar containing perishable products such as strawberries, cherries or others.

It is an object of the invention that the tray be conceive so that it presents a reinforced structure in its corners that determine a great robustness to support the weight of the boxes that are stacked superiorly.

Corner reinforcements thus conceived are they will constitute supports of upper flaps that support the stacking preventing such tapes from penetrating inside the tray and therefore the top stacked tray.

Complementarily and in combination with the Exposed objectives are contemplated as an object of the invention that corner reinforcements in their mounting situation occupy the smallest possible space inside the tray due to optimize the capacity of the tray getting a larger volume useful, and therefore a better distribution of the packages that transport and store the tray, especially tub type containers in which perishable products are housed.

Background of the invention

During the design of boxes or trays intended to the transport of fruit and vegetable products becomes very important the development of a reinforced corner structure, either in boxes or trays of corrugated cardboard or compact cardboard, which allow to support the load of the respective boxes or trays that They are stacked superiorly during transport.

Various solutions are known that contemplate the incorporation of extreme sectors defined in the testeros or on the sides of the box or tray, which conveniently bends define reinforcements in the corners on whose edges or upper edges directly supports the stacking box superiorly, which is centered and conveniently adjusted in vertical position by corresponding flaps normally provided in the corners themselves or in the front of the box lower that constitute anchoring means that are introduced into defined windows in the box immediately above.

As evolution of this solution it is contemplated that the upper edges of the corner braces are protected by a flat surface called placket that folds up be supported on said edges and whose upper face constitutes a contact surface on which the box is supported top stacked.

The reinforcement must therefore present the sufficient robustness and show adequate geometry to distribute the stacking loads that the placket supports.

In the case that the box incorporates corners of low robustness and its design does not favor an adequate distribution of loads, the placket may yield due to the weight of the stacking of boxes penetrating inside the box and behind it the box arranged superiorly.

In corrugated cardboard boxes the juxtaposition of several sectors folded in the corners creates thick zones considerable that are sufficient to avoid the dejection of the caps and the introduction of the upper box, however in boxes Compact cardboard is important a corner design that allows an adequate distribution of loads.

The utility model ES 1 024 498 for example, refers to a reinforced cardboard box that is designed in corrugated cardboard that has some extensions of its heads which conveniently folded and internally coupled in the armed of the box form a dihedral in the corners doubling or tripling the thickness of the cardboard sheet, thus constituting a corner reinforcement on whose upper edges a placket that constitutes the support surface of the box that is stack top.

This booster solution, which could be considered adequate in the case of using corrugated cardboard, not it would be enough for boxes made of compact cardboard, since that the placket would not have a sufficient support surface and would end up winning before a stacking weight less than the maximum which would normally support the corrugated cardboard box.

On the other hand some designs of corner in compact cardboard boxes that increase the surface of support on which the placket rests for greater reinforcement, but they occupy an appreciable space inside the box what goes on detriment of the useful volume of the box that is reduced by the location of the reinforcements in the corners.

This loss of space has a special impact in the case that the products that houses the box or tray are find contents in containers of certain rigidity, such as tubs, which are limited in size and therefore its possible ability to house more products.

Description of the invention

The compact cardboard tray that constitutes the object of this invention comes to satisfactorily solve the problem described above by incorporating corner reinforcements that combine a design optimized for the uniform distribution of the weight of the top-stacked boxes with the reduction of the space occupied by said reinforcements of corner inside the tray.

This result is achieved from about corner reinforcements of triangular prismatic configuration of height coinciding with that of the heads, which has a inclined sector consisting of the hypotenuse that forms an angle between 20 ° and 25 ° with the tester.

Triangular prismatic reinforcements are obtained from extreme extensions to the tester equipped with lines bending that define four consecutive sectors that conveniently folded make up the reinforcement in which the first sector is attached to the inner side of the side wall of the tray, the second sector of smaller amplitude is attached to that first sector, the third sector consists of the inclined sector described above and the fourth sector is attached to the inner face of the testero.

This angle that forms the third sector of the reinforcement with the tester defined between 20 ° and 25 ° determines a increase of the useful volume of the box with respect to the useful volume that obtained as a result of adopting other reinforcement solutions with another geometry, therefore in this way some ideal conditions for transporting containers such as tubs getting a better use of the interior space of the tray.

The tray has a placket that extends superior to the tester in the vicinity of each of the corners that fold to rest on the upper edges of the corner reinforcement constituting horizontal supports for the tray stacking. The upper edge of the mentioned third sector that is in a diagonal position helps to avoid that the placket penetrates by collapsing inside the tray by the weight of stacked trays.

It is also noteworthy that the placket has a lateral extension that collapses and adheres to the face exterior of the side wall in the armed situation of the tray.

Additionally it is planned that the tray incorporate superior highlights in the first and second sector that are attached to each other forming anchors conceived for introduction into holes made in the intersection between the bottom of the tray and the side to the object of facilitate the positioning and centering of the tray superiorly stacked These projections protrude superiorly through a notch between the placket and its lateral extension.

With this same purpose it is contemplated that in the flaps are some U-cuts in the vicinity of the tester that define a first fin that is attached to a second fin that protrudes from the fourth sector configuring anchoring means intended for introduction into windows defined in the intersection between the base of the tester and the bottom of the tray.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to an example preferred practical implementation of it, is accompanied as integral part of that description, a set of drawings where with an illustrative and non-limiting nature, what has been represented next:

Figure 1.- Shows a view corresponding to the development of the compact cardboard sheet from which it Get the tray.

Figure 2.- Shows a perspective view from the inside of one of the corners of the tray during assembly prior to the folding of the placket and its lateral extension.

Figure 3.- Shows a perspective view from the inside of one of the corners of the tray once navy.

Figure 4.- Shows a detail in section of the tray corner.

Figure 5.- Shows a perspective view from the outside of one of the corners of the tray.

Preferred Embodiment of the Invention

In view of the described figures the tray of compact cardboard for transport and storage of products perishable that constitutes the object of this invention is of the type of those that are constituted from the development of a sheet of compact cardboard equipped with folding and cutting lines that define after its assembly, some heads (1) that have extensions extremes that make up corner reinforcements (4) to facilitate the stacking between trays, and some side walls (2) that they have a wide flap (3) that folds and attaches to the interior of said side walls (2).

From this basic structuring the tray It stands out mainly because corner reinforcements (4) they have a prismatic configuration of triangular section, of height coinciding with the height of the tester (1), whose hypotenuse or diagonal sector forms an angle with the tester (1) included between 20 ° and 25 ° minimizing the space occupied by reinforcements in the inside of the tray thus defining a large volume Useful.

The extreme extensions to the testero are equipped of folding lines that define four consecutive sectors that once folded they form the corner reinforcement (4) in which a First sector (6) is attached to the internal face of the side wall (2) of the tray, a second sector (7) of smaller amplitude is attached to that first sector (6), a third sector it consists of the diagonal sector (5) and a fourth sector (8) is attached to the inner face of the tester (1), constituting the edges superior of the four sectors (5, 6, 7, 8) the surface of support of a placket (9) on which the stacking is supported upper, placket (9) that extends superiorly to the tester (1) and It has a lateral extension (10) that is attached on the face exterior of the side wall (2) in the armed situation.

The tray also has highlights (11) in the first and second sectors (6, 7) that are attached to each other constituting anchoring means that cross a notch (12) practiced between the placket (9) and its lateral extension (10) and that are intended for introduction into holes (13) practiced at the intersection between the bottom of the tray and the side wall (2) when the trays are stacked for positioning and centering.

The covers (9) have some U-shaped cuts (14) in the vicinity of the tester (1) that define first fins (15) that are attached to second fins (16) protruding from the fourth sector (8) constituting anchoring means intended for introduction into windows (17) defined at the intersection between the base of the tester (1) and the bottom of the tray.

Claims (4)

1. Compact cardboard tray for transport and storage of perishable products, preferably contained in tubs, of the type that are constituted from the development of a compact cardboard sheet equipped with folding and cutting lines that define after assembly, some heads (1) that have extreme extensions that form corner reinforcements (4) to facilitate stacking between trays, and side walls (2) that have a wide flap (3) that folds and attaches to the inside said side walls (2), characterized in that the corner reinforcements (4) have a prismatic configuration of triangular section, of height coinciding with the height of the tester (1), whose hypotenuse or diagonal sector (5) forms an angle with the tester (1) between 20 ° and 25 ° minimizing the space occupied by the reinforcements inside the tray thus defining a large useful volume. 2. Compact cardboard tray for transport and storage of perishable products, preferably contained in tubs according to claim 1, characterized in that the extreme extensions to the tester are provided with folding lines that define four consecutive sectors that once folded form the corner reinforcement (4 ) in which a first sector (6) is attached to the inner side of the side wall (2) of the tray, a second sector (7) of smaller amplitude is attached to that first sector (6), a third sector It consists of the diagonal sector (5) and a fourth sector (8) is attached to the inner face of the tester (1) constituting the upper edges of the four sectors (5, 6, 7, 8) the support surface of a placket (9) on which the upper stack is supported, placket (9) that extends superiorly to the tester (1) and has a lateral extension (10) that is attached on the outer face of the side wall (2) in the ar situation mado 3. Compact cardboard tray for transport and storage of perishable products, preferably contained in tubs according to previous claims characterized in that it has projections (11) in the first and second sector (6, 7) that are attached to each other constituting anchoring means that cross a notch (12) made between the placket (9) and its lateral extension (10) and that are intended for its introduction into holes (13) made at the intersection between the bottom of the tray and the side wall (2) ) when the trays are stacked for positioning and centering. 4. Compact cardboard tray for transport and storage of perishable products, preferably contained in tubs according to previous claims characterized in that the flaps (9) have U-cuts (14) in the vicinity of the tester (1) that define first fins (15) that are attached to second fins (16) protruding from the fourth sector (8) constituting anchoring means intended for introduction into windows (17) defined at the intersection between the base of the tester (1) and the bottom of the tray.