ES1301379U - REINFORCED CARDBOARD CONTAINER, AND PALLETIZED STRUCTURE THAT INCLUDES SAID CONTAINER (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Reinforced cardboard container (40), comprising a body obtained with a single strip (20) of cardboard, the body comprising: an upper mouth, at least partially open, delimited by upper parts of side walls of the body; a bottom configured to be supported on a pallet (70), the bottom being formed by lower flaps (47, 48) connected to the lower part of at least four side walls by lower horizontal folds (49); and a lateral contour formed by a plurality of flat side walls, said plurality including two mutually facing first side walls (44) and two mutually facing second side walls (45), which configure four corner areas of the lateral contour of the body, the walls being flat sides of said plurality arranged around and perpendicular to the bottom, the side walls of said plurality being connected one after the other, in series, by respective vertical folds (42) parallel to each other, each side wall being delimited laterally by the vertical folds (42), and two end side walls of the folded band (20) being mutually joined; the reinforced container (40) being characterized in that the folded strip (20) constituting the body is a die-cut strip (20) of double-walled corrugated cardboard, with only three smooth sheets (21) and two corrugated sheets (22) arranged between two of the smooth sheets (21), and the two corrugated sheets (22) forming vertical grooves (23) in the plurality of side walls of the side contour; each corner zone further comprises a reinforcing pillar, formed by at least three respective flat corner side walls (46a, 46b), constituting said plurality of flat side walls, connected one after the other, in series, folded by respective vertical folds (42), each reinforcing pillar of each corner area including a respective multilayer wall comprising at least one respective triple lateral wall of double-walled corrugated cardboard formed by said at least three respective lateral walls (44, 45, 46a , 46b) with their respective flat surfaces in mutual contact; each reinforcing pillar of each corner zone comprises a plurality of right angles of double-walled corrugated cardboard, formed by the at least three respective flat corner side walls (46a, 46b), each right angle of double-walled corrugated cardboard formed by a first flat corner side wall (46a) and a second flat corner side wall (46b), connected in series one immediately after the other, folded perpendicularly by one of said vertical folds (42); each right angle of double-walled corrugated cardboard of the plurality of right angles of each reinforcement pillar, each first side wall (44), each second side wall (45), each corner side wall (46a, wherein the four pluralities of right angles of double-walled corrugated cardboard of the reinforcing pillars are jointly configured to reinforce the reinforced container (40) against vertical compressive forces and against horizontal forces, including said horizontal forces longitudinal and transverse forces, and to keep the reinforcing pillars in position in the face of said efforts, and to enable the upper mouth to support one and/or two sets of reinforced container (40) and pallet (70) in stack. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

REINFORCED CARDBOARD CONTAINER, AND PALLETIZED STRUCTURE THAT

INCLUDES SAID CONTAINER

TECHNIQUE SECTOR

The technical field of the present invention is semi-rigid containers of polygonal cross section, for example, boxes, cardboard containers, formed by folding paper-based sheets.

OBJECT OF THE INVENTION

According to a first aspect, the present invention presents a reinforced container comprising a body obtained with a single strip of cardboard. The body comprises an upper mouth, at least partially open, delimited by upper parts of side walls of the body, configured to support one or more stacked reinforced container and pallet assemblies. The body also comprises a bottom configured to be supported on a pallet, formed by lower flaps connected to the lower part of the side walls by lower horizontal folds.

BACKGROUND OF THE INVENTION AND TECHNICAL PROBLEM TO BE RESOLVED

On the one hand, document ES2653920A1, from the same inventor as the present application, proposes a large reinforced container, that is, with a base width of 60 centimeters or more and a height of 90 centimeters or more, to be supported on a pallet. . The reinforced container is made of several pieces: a flat base piece folded and attached to a tubular body 61. The flat base piece is daisy-shaped, and is formed from the union of a plurality of flat pieces: a bottom center and a plurality of wall panels joined at their ends to the central bottom, extending radially. The base flat piece is made of a plurality of separate cardboard flat pieces in order to take advantage of the higher compressive strength of the corrugated cardboard in the same direction as the corrugated corrugated cardboard grooves.

On the other hand, document ES2717723A1, from the same inventor as the present application, concerns a reinforced body made of several pieces: a first body and a second body made of corrugated cardboard, with lower and upper open mouths. Both bodies are joined together by adhesive that joins the inner lateral contour of one body with the outer lateral contour of the other body, by linearly introducing one body inside the other according to a relative linear movement parallel to the axis of vertical symmetry of the bodies.

On the other hand, the documents EP3616896B1 and US201816753041A1, from the same inventor of the present application, propose a reinforced polygonal drum made of glued corrugated laminar material. The drum comprises two pieces of cardboard: a tubular body and a base body. The polygonal tubular body includes a band made of at least one corrugated sheet and one flat sheet joined together, for example, single-sided corrugated cardboard, rolled at least two full turns, and a base body of single-walled corrugated cardboard in background functions that completely closes the background of the body. Depending on the number of complete turns, a multilayer wall is obtained with a desired number of smooth and corrugated sheets, that is, a container with personalized mechanical resistance to compression and expansion that is easily manufactured, and with a low-cost raw material such as simple cardboard. expensive. Said drum is for containing bulk products, to replace the classic plastic or metal drums, particularly steel drums, with volumes typically between 200 and 1250 liters.

On the other hand, document ES1276909Y9 proposes a reinforced container made from several sheets of rigid corrugated cardboard: a first sheet 40 for the formation of the body, and one or more second sheets 60 to laterally reinforce the container on at least two side walls. of the body facing each other. The body has a lateral contour formed by four or eight serrated side walls, four lower flaps 52, 53 that arise from the side walls and define a bottom, and some upper flaps attached to the side walls from which they arise that determine a reinforced upper mouthpiece. .

On the other hand, document ES1274749U, from the same inventor of the present application, proposes a palletized structural assembly for the transport and handling of fruit and vegetable products, where, instead of having a single stack of mutually nested boxes on the same pallet in a container of a road vehicle, the palletized structure comprises a single structural stack including a plurality of pallets, wherein each pallet supports a plurality of boxes limited in number to two or three boxes, and wherein each tray is made from a single flat cardboard development of five sheets joined together, three smooth sheets, and two corrugated sheets sandwiched between the smooth sheets.

On the other hand, the document ES2169629A1 discloses a reinforced container 1 comprising a rectangular body with a partially open upper mouth and four tubular struts 4 located in the nooks or corners of the body to withstand the vertical stresses, when stacking a container full of goods one on top. on the other, and to stabilize the body avoiding undesirable deformations due to the flexibility of the semi-rigid material - preformed folded die-cut corrugated cardboard plate - with which the body is made. In the corners of the body are made pairs of cuts 8 (Fig. 1) that delimit some sectors of material deflected towards the interior of the container that form orthogonal brackets 9 at these corners to keep the struts 4 upright. In each corner, openings 5 folded towards the interior of the sectors displaced towards the interior of the container, reveal parts of the struts 4 that serve as a support and sliding surface for tightening and closing some straps or bands 3 that surround the container 1, ensuring stability and avoiding deformations due to expansion efforts of the side walls of the container body. The stability and the mitigation of the expansion strain are avoided thanks to the fact that the straps 3 are not located in the four edge portions of the corner of the rectangular body, but are located in each corner or three straps 3 are located in correspondence with three openings 5 of the clamps 9 equidistant (Fig. 2).

On the other hand, in document ES1172234U, the reinforced container is made of cardboard, without specifically selecting a specific cardboard from among a wide variety of types of cardboard described, and it comprises five pieces in combination: a body obtained with a single corrugated cardboard sheet , and four column elements 300 that are struts or tubular elements. The body has a rectangular side contour of four serrated side walls, and has braces, called inner channels 115, 116, 117, defined by partially cut fold lines at the corners of the container body. The clamps serve to position the column elements 300 inside the body of the reinforced container.

On the other hand, document US4874125A proposes a rectangular cardboard box (Fig. 8) with a bottom closed by four lower flaps and an upper lid also closed by upper flaps, which originate from the bottom and top of four side walls, which define together a rectangular closed box.

In said document US4874125A, the cardboard box is obtained with a single single-wall corrugated cardboard sheet, with two smooth sheets and one corrugated sheet sandwiched between the smooth sheets (Figs. 3 and 7).

However, this same document US4874125A describes that, instead of increasing the compressive strength by modifying the construction of the corrugated cardboard using a double-walled or triple-walled cardboard structure, the invention proposes, on the contrary, moving away from this alternative, elements cardboard reinforcement that can be formed with the single cardboard sheet, extending the height of the cardboard box, and positioned at the corners of two adjacent side walls. Thus, the reinforcing elements are folded (Figs. 2-3 and 6-7), forming either a double-walled multilayer reinforcing element in contact with the long side walls (Figs. 3 and 8), or a reinforcing element L-shaped double-walled multilayer in contact with both the long and short sidewalls (Fig. 7).

Also, the document US4874125A itself describes that the reinforcing elements are made up of a plurality of panels that are folded 180 degrees relative to each other (Figs. 3 and 7), in contact, forming one or two multilayer walls.

Thus, the box of the embodiment of Fig. 3 of document US4874125A has the disadvantage of being reinforced only in one of the two mutually perpendicular horizontal directions, for example longitudinally, but it is poorly reinforced transversely, in the other perpendicular horizontal direction.

In the box of the embodiment of Fig. 7 of document US4874125A, to achieve longitudinal and transversal reinforcement, that is, in both horizontal directions, four panels of equal width (Figs. 5 and 7) with four 180 folds are necessary. ° and a 90° fold to define an L-shaped reinforcing element in each corner of the box (Figs. 7-8), carries the necessary disadvantage of causing an increase in surface development in the constitutive band of the body. , considerably increasing the manufacturing costs of the reinforced container.

On the other hand, document ES1218995U, considered the closest document to the state of the art, proposes a reinforced container comprising a body obtained with a single cardboard strip, the body comprising:

- a reinforced upper mouthpiece, at least partially open, delimited by upper parts of side walls of the body, wherein the upper mouthpiece is reinforced by eight folded upper flaps, by respective eight upper horizontal folds perpendicular to vertical folds, and each one of them is attached to the top of one of the eight side walls: two larger side walls 1, two smaller side walls 2 or four walls 3 as a chamfer, acting as reinforcements for each of the eight side walls 1, 2. 3;

- a bottom, at least partially open, for fixing to a pallet, the bottom being formed by the union of lower flaps connected to the lower part of at least four side walls by lower horizontal folds; and

- a lateral contour formed by a plurality of flat side walls, said plurality including two mutually facing larger side walls 1 and two mutually facing smaller side walls 2 that delimit four corner zones of the lateral contour of the body, arranged around the bottom and perpendicular to the same, connected one after the other, in series, by respective vertical folds 4 parallel to each other, and two of said mutually end side walls of the folded cardboard web or development being joined, preferably by an end side panel or fixing/joining tab.

On the one hand, a drawback of reinforced containers to contain large volumes is that they must offer high mechanical resistance to both vertical compression and expansion, as well as to buckling, as well as a minimum manufacturing cost: cost of raw material and cost of assembly of the container from the plate, depending on the manual, automatic assembly or partially manual and partially automatic assembly of the container.

The documents FR3085881B1, ES2749298B2, US11465382B2 and EP3795345A1, from the same inventor as the present application, disclose machines for the automatic assembly of a wide variety of reinforced containers, including the container of document ES1218995U.

A drawback of the reinforced containers currently used to be arranged on a pallet in container and pallet sets, for example, of the type such as the aforementioned ES1218995U or ES1172234U, is that their mechanical resistance to compression and/or expansion and/or buckling is severely limited. and also exhibit intolerable deformations due to the semi-rigid nature of the cardboard with which they are made.

This limited mechanical resistance produces that, for the transport of certain products, for example, a wide range of fruits and/or vegetables, the height of the container is typically limited to about 60 centimeters.

Another drawback is that, for the transport of certain products, for example, a wide range of fruits and/or vegetables, each structural assembly of pallet and reinforced container on pallet is only generally stacked at two heights, although for container measurements, the container and pallet sets can be stacked three heights, to avoid frequent losses of the contained product due to the poor mechanical resistance of the reinforced containers.

These double-height stacking practices are very frequent and common for a wide range of fruits and/or vegetables, for example, for the transport of melons and watermelons, and a very considerable part of the volume of the container of the land transport vehicle is empty, Said empty transport volume is of the order of 33.33% and only the remaining 66.66% is usually occupied with cargo, undesirably increasing the transport costs of containers full of product.

Also, this non-optimized transport with empty transport volumes of product, results in an increase in the cost of the carbon footprint (polluting emissions) of each kilogram of product transported in the reinforced container.

Another drawback of reinforced containers formed from several parts is that their assembly cost is considerable. In addition, the logistics and storage of such a large number of parts is complex and has associated costs related to storage, stock management, etc.

It would be desirable to obtain a versatile reinforced container that offers high mechanical resistance at the same time as a minimum cost, both a minimum manufacturing cost and a minimum cost of placement at the point of sale, reducing the carbon footprint per kilogram of product contained in the container. reinforced container, transported and placed at the point of sale.

EXPLANATION OF THE INVENTION

In order to solve the drawbacks set forth in the previous section, the present invention presents a reinforced cardboard container that comprises a body obtained with a single cardboard band.

The cardboard container is advantageously obtained with a single cardboard band, providing simplified logistics, storage and stock management of raw materials, resulting in lower production costs of the cardboard container.

The body comprises an upper mouth, at least partially open, delimited by upper parts of side walls of the body.

The body further comprises a bottom, at least partially open, configured to be supported on a pallet. The bottom is formed by lower flaps connected to the lower part by side walls by lower horizontal folds.

Preferably, the bottom is formed by lower flaps connected to the lower part of two or four side walls by lower horizontal folds.

Since the upper mouth is at least partially open, it has the advantage of providing a minimum development of cardboard surface for the only band constituting the body, minimizing production costs of the reinforced container, while the structural resistance of the reinforced container is maintained, configured to form part of a set of a single pallet and only one or two reinforced containers supported on said pallet at the same height during transport.

In addition, the body has a lateral contour formed by a plurality of lateral walls. flat.

Said plurality of side walls includes two mutually facing first side walls and two mutually facing second side walls. The first and second side walls form four corner areas of the lateral contour of the body. The first and second side walls are arranged around the bottom, surrounding it, and are perpendicular to the bottom.

The side walls of said plurality of side walls are connected one after the other, in series, by respective mutually parallel vertical folds. Likewise, each side wall is laterally delimited by the vertical folds.

Likewise, two mutually end side walls of the folded strip are mutually joined, preferably by a joining end side panel.

In the reinforced container, the folded strip constituting the body is a die-cut strip of double-walled corrugated cardboard, with only three smooth sheets and two corrugated sheets arranged between two of the smooth sheets.

In the folded band constituting the body, the two corrugated sheets form vertical grooves, perpendicular to the bottom, in the plurality of side walls of the lateral contour, to reinforce the compressive strength of the reinforced container, that is, to increase the vertical loads to the that the reinforced container is put in use.

In the reinforced container, the specific and intentional choice of the structure of said cardboard, double-walled corrugated cardboard, with only five sheets, has the advantage of providing an optimal relationship between the mechanical resistance of the container and that which requires a minimum development of the surface and/or thickness of the strip with which the body is obtained, also making it possible to easily produce the strip in conventional corrugated cardboard installations, both due to development measures and cardboard structure, at reduced costs.

Preferably, the two corrugated sheets are of different corrugation amplitude from one another to increase the mechanical resistance of the container.

Advantageously, double-walled corrugated cardboard is a material that has the advantage of being recyclable and also with a reduced biodegradation time, compared, for example, to the high biodegradation times of plastic materials, including extruded or molded plastic materials, or of metallic materials.

In addition, corrugated cardboard is attractive for its lightness, compared to containers reinforced with plastic or metal bodies, conferring a reduction in the footprint of carbon for each kilo of product that can be contained and transported in the reinforced container, while lowering production costs in the transport of the reinforced container to the point of sale of the contained product.

Likewise, in the reinforced container, each corner zone of the lateral contour of the body further comprises a reinforcing pillar formed by at least three respective flat corner side walls constituting said plurality of flat side walls.

In each reinforcing pillar of each corner zone, the respective at least three corner side walls are connected one after the other, in series, folded by at least three vertical folds.

In each reinforcing pillar of each corner zone, the respective at least three respective corner side walls between mutually adjacent first and second side walls.

Each reinforcing pillar of each corner zone includes a respective multi-layer wall that comprises at least one respective triple lateral wall of double-walled corrugated cardboard formed by at least three respective lateral walls with respective flat surfaces thereof in mutual contact, attached / coplanar with each other.

In the reinforced container, each reinforcing pillar of each corner zone comprises a plurality of right angles of double-walled corrugated cardboard, formed by the at least three respective flat corner side walls. Each double wall corrugated cardboard right angle is formed by a first flat corner side wall and a second flat corner side wall, connected in series one immediately following the other, folded perpendicularly by one of said vertical folds.

In the reinforced container, each double-wall corrugated cardboard right angle of the plurality of right angles of each reinforcing pillar, each first side wall, each second side wall, each corner side wall and each vertical fold has a respective vertical extension continuous that extends from the bottom to the upper mouth.

The four pluralities of double-walled corrugated cardboard right angles of the reinforcing pillars are jointly configured to reinforce the reinforced container against vertical compressive forces and against horizontal forces, said horizontal forces including longitudinal and transverse forces.

Additionally, the four pluralities of double-walled corrugated cardboard right angles of the reinforcing pillars are jointly configured to hold the reinforcement pillars. reinforcement in position before said vertical compression forces and before said horizontal forces, including said horizontal forces longitudinal and transversal forces.

Additionally, the four pluralities of right angles of double-walled corrugated cardboard of the reinforcement pillars enable the upper mouth to support one and/or two sets of reinforced container and pallet in stack, forming a stack of two and/or three structural sets , each structural assembly comprising a single pallet and only one or two reinforced containers supported on said pallet at the same height.

Advantageously, the four pluralities of right angles of double-walled corrugated cardboard prevent positional deviation and/or deformation of the reinforcing pillar in the face of vertical compressive forces and horizontal forces, including said horizontal forces longitudinal and transversal forces, avoiding the collapse of the container reinforced full of product in stacking, and avoiding undesired losses.

Advantageously, the 90 degree angulation of each one of the right angles of the plurality of right angles in each reinforcing pillar does not necessarily crush, as would happen undesirably in a 180 degree fold, the two corrugated sheets constituting double-sided corrugated cardboard. wall, these four pluralities of right angles maintaining a high resistance to vertical compression despite the folding by the vertical folds.

Advantageously, the plurality of right angles included in each reinforcing pillar formed with the plurality of flat side walls of the lateral contour of the body, offer the possibility of using a smaller amount of raw material from the single band with which the body is constituted (for example, using a smaller cardboard surface and/or a smaller cardboard thickness, translated into less development of corrugated sheets), since the plurality of right angles act as a plurality of reinforcement brackets constituting each reinforcement pillar, to achieve improved compressive strength and improved horizontal strength in two mutually perpendicular directions, longitudinal and transverse.

For example, these cardboard brackets offer the possibility of reducing the horizontal distance between the extreme vertical folds of the at least three corner side walls in the flat development of the strip and/or the thickness of the strip, in order to achieve the aforementioned improved strength. .

Advantageously, jointly / synergistically, the four pluralities of continuous angles extended between the bottom and the upper mouth, reduce the horizontal oscillations of the side walls and the upper mouth of the reinforced container, when faced with efforts lateral, transversal and longitudinal horizontals, due to the swaying effect during handling, and/or storage and/or transport full of product, avoiding possible collapses in stacking with product inside.

In other words, in the reinforced container in a stacked situation, this continuity ensures that the stresses are transmitted between the upper mouth and the bottom of the reinforced container, distributed by the reinforcement points, like cardboard pillars, which form said side walls. corner and said vertical folds forming right angles in the reinforcement pillars.

Thus, in the present invention, it will be understood that each right angle of the four pluralities of right angles has a respective vertical extension corresponding to the height of the container, the right angles not having overlapping or separations that make them lose their structural resistance.

Thus, in the present invention, it will be understood that each sidewall of the plurality of body contour sidewalls includes at least one vertical panel sector continuous from the bottom to the top mouthpiece.

Preferably, some of the first and/or second side walls, in addition to the aforementioned continuous vertical panel sectors, may also include ventilation holes for the product to be contained in other sectors of some of the first and/or second side walls.

Each of these at least three corner side walls in each of the four corner areas are of a smaller width (smaller distance between vertical folds) than the first and second side walls, in order to arrange these structural pillars in the corners or corners of the container strategically, while the development on the surface of the cardboard is minimal to optimize production costs.

Advantageously, said width of each corner side wall can be selected from a greater range of measurements, thanks to the effect of the plurality of right angles of each pillar and the synergistic effect, in cooperation, of the four plurality of right angles, as shown has detailed above.

Advantageously, the at least three respective corner sidewalls, the multilayer wall comprising at least one respective triple sidewall of double-walled corrugated cardboard formed by at least three respective sidewalls, and the right angles of vertical folds in each corner zone , act synergistically forming a structural pillar in each corner area.

These pillars are advantageously formed from parts of the band constituting the body itself, not from separate pieces, thus minimizing the manufacturing costs of the container, including a simplification of stocks that results in lower manufacturing costs.

Thanks to the arrangement in each corner area of the reinforcing pillars, which extend continuously from the bottom to the upper mouth, a distance corresponding to the height of the reinforced container, the mechanical resistance of the reinforced container is advantageously increased, for example, before stacking, and the deformations due to the flexibility of the semi-rigid material (double-wall corrugated cardboard) are reduced, avoiding the collapse of the reinforced container in a stacked situation.

The plurality of vertical folds of right angles, that is to say, at 90 degrees, of each one of the corner zones act as cornered vertical pillars of increased resistance, both against vertical compression forces and horizontal expansion forces.

The increased resistance to expansion and the lower deformation of the side walls under expansion stresses is due to the fact that, in the lateral contour of the body, the linear distance between adjacent vertical folds is reduced, for example, compared to a conventional container with a lateral contour Rectangular, free of reinforcement pillars formed with the band constituting the body.

Other optional features of the first aspect of the invention are described in the detailed discussion of preferred embodiments, together with their respective advantages.

According to a second aspect, the present invention presents a palletized structure. The palletized structure comprises two or three palletized structural assemblies, stacked vertically one on top of the other. Each palletized structural assembly comprises only one or two of the reinforced containers according to any one of the preceding claims and a pallet in which said one or two reinforced containers are supported at the same level or height.

The object of the second aspect of the invention also benefits from the technical effects and advantages described in the first aspect of the invention.

Other optional features of the second aspect of the invention are described in the detailed discussion of preferred embodiments, together with their respective advantages.

According to another aspect, the present invention describes a manufacturing method of the reinforced container of the first aspect of the invention.

The claims of the reinforced container object, of the first aspect of the invention, have been drafted in such a way that it is possible to verify a possible infringement whether the reinforced container is in a stacked situation or not, and whether the reinforced container is supported on a pallet as if not.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing and other advantages and characteristics will be more fully understood from the following detailed lists of embodiment examples with reference to the attached drawings, which should be taken for illustrative and non-limiting purposes, in which:

Fig. 1 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a first embodiment;

Fig. 2 is a top plan view of the reinforced container of the present invention according to the first embodiment, obtained with the single band of Fig. 1;

Fig. 3 is an enlarged view of detail I of Fig. 2;

Fig. 4 is a representative enlarged top perspective view of the carton structure of the reinforced container of the embodiment of Fig. 2 at the top mouth;

Fig. 5 is a bottom plan view of the reinforced container of Fig. 2;

Fig. 6 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a second embodiment;

Fig. 7 is a top plan view of the reinforced container of the present invention according to the second embodiment, obtained with the single band of Fig. 6;

Fig. 8 is an enlarged view of detail II of Fig. 7;

Fig. 9 is a representative enlarged top perspective view of the carton structure of the reinforced container of the embodiment of Fig. 7 at the top mouth;

Fig. 10 is an enlarged view of detail III of Fig. 7;

Fig. 11 is a bottom plan view of the reinforced container of Fig. 7;

Fig. 12 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a third embodiment;

Fig. 13 is a cross section of a top plan view of the reinforced container of the present invention, according to the third embodiment, obtained with the single band of Fig.

Fig. 14 is an enlarged view of detail IV of Fig. 13;

Fig. 15 is a bottom plan view of the reinforced container of Fig. 12;

Fig. 16 is a top perspective view of the reinforced container according to the third embodiment of Fig. 13;

Fig. 17 is an enlarged view of detail V of Fig. 16;

Fig. 18 is a bottom perspective detail view, from inside the reinforced container, of a corner area of the reinforced container of Fig. 16, where a reinforcing pillar is arranged;

Fig. 19 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a fourth embodiment;

Fig. 20 is a cross section of a top plan view of the reinforced container of the present invention, according to the fourth embodiment, obtained with the single band of Fig. 19;

Fig. 21 is an enlarged view of detail VI of Fig. 20;

Fig. 22 is a bottom plan view of the reinforced container of Fig. 20;

Fig. 23 is an enlarged view of detail VII of Fig. 22;

Fig. 24 is a plan view of a plurality of plates with which the single strip is obtained with which the body of the reinforced container of the present invention is obtained, according to a variant of the fourth embodiment;

Fig. 25 is a plan view of the single band obtained from the plurality of plates in Fig. 24;

Fig. 26 is a top perspective view of the reinforced container of the fourth embodiment obtained with the single band of Fig. 19 or 25;

Fig. 27 is an enlarged view of detail VIII of Fig. 26;

Fig. 28 is a bottom perspective detail view, from inside the reinforced container, of a corner area of the reinforced container of Fig. 26, where a reinforcing pillar is arranged;

Fig. 29 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a fifth embodiment;

Fig. 30 is a cross section of a top plan view of the reinforced container of the present invention according to the fifth embodiment, obtained with the single strip of Fig. 29;

Fig. 31 is an enlarged view of detail VI of Fig. 30;

Fig.30;Fig. 32 is a bottom plan view of the reinforced container of l

Fig.30;

Fig. 33 is an enlarged view of detail VII of Fig. 32;

Fig.34 is a top perspective view of the reinforced container of the fifth embodiment obtained with the single band of Fig. 29;

Fig. 35 is an enlarged view of detail XI of Fig. 34;

Fig. 36 is a bottom perspective detail view, from inside the reinforced container, of a corner area of the reinforced container of Fig. 34, where a reinforcing pillar is arranged;

Fig. 37 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a sixth embodiment;

Fig. 38 is a cross section of a top plan view of the reinforced container of the present invention, according to the sixth embodiment, obtained with the single strip of Fig. 37;

Fig. 39 is an enlarged view of detail XII of Fig. 38;

Fig. 40 is a bottom plan view of the reinforced container of Fig. 38;

Fig. 41 is an enlarged view of detail XIII of Fig. 40;

Fig. 42 is a top perspective view of the reinforced container of the sixth embodiment obtained with the single band of Fig. 37;

Fig. 43 is an enlarged view of detail XIV of Fig. 42;

Fig. 44 is a bottom perspective detail view, from inside the reinforced container, of a corner area of the reinforced container of Fig. 42, where a reinforcing pillar is arranged;

Fig. 45 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a seventh embodiment;

Fig. 46 is a top plan view of the reinforced container of the present invention according to the seventh embodiment, obtained with the single band of Fig. 45;

Fig. 47 is an enlarged view of detail XV of Fig. 46;

Fig. 48 is a bottom plan view of the reinforced container of Fig. 46, where the upper left corner area has been partially cut away;

Fig. 49 is an enlarged view of detail XVI of Fig. 48, corresponding to the partially sectioned upper left corner area of Fig. 48;

Fig. 50 is a plan view of the only band with which the body of the reinforced container of the present invention is obtained, according to a variant of the seventh embodiment;

Fig. 51 is a cross section of a top plan view of the reinforced container of the present invention, according to the variant of the seventh embodiment, obtained with the single band of Fig. 50;

Fig. 52 is an enlarged view of detail XVII of Fig. 51;

Fig. 53 is a bottom plan view of the reinforced container of Fig. 51;

Fig. 54 is an enlarged view of detail XVIII of Fig. 53;

Fig. 55 is a top perspective view of the reinforced container obtained with the only strip of any one of Figs. 45 or 50

Fig. 56 is an enlarged view of detail XIX of Fig. 55;

Fig. 57 is a bottom perspective detail view, from inside the reinforced container, of a corner area of the reinforced container of Fig. 55, where a reinforcing pillar is arranged;

Fig. 58 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to an eighth embodiment;

Fig. 59 is a cross section of a top plan view of the reinforced container of the present invention, according to the eighth embodiment, obtained with the single band of Fig. 58;

Fig. 60 is an enlarged view of detail XX of Fig. 59;

Fig. 61 is a bottom plan view of the reinforced container of Fig. 59;

Fig. 62 is an enlarged view of detail XXI of Fig. 61;

Fig. 63 is a top perspective view of the reinforced container of the eighth embodiment obtained with the single band of Fig. 58;

Fig. 64 is an enlarged view of detail XXII of Fig. 63;

Fig. 65 is a detail view in lower perspective, from inside the reinforced container, of a corner area of the reinforced container of Fig. 63, where it is arranged a reinforcement pillar;

Fig. 66 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a ninth embodiment;

Fig. 67 is a cross section of a top plan view of the reinforced container of the present invention, according to the ninth embodiment, obtained with the single strip of Fig. 66;

Fig. 68 is an enlarged view of detail XXIII of Fig. 67;

Fig. 69 is a bottom plan view of the reinforced container of Fig. 67;

Fig. 70 is an enlarged view of detail XXIV of Fig. 69;

Fig. 71 is a top perspective view of the reinforced container of the ninth embodiment obtained with the single strip of Fig. 66;

Fig. 72 is an enlarged view of detail XXV of Fig. 71;

Fig. 73 is a bottom perspective detail view, from inside the reinforced container, of a corner area of the reinforced container of Fig. 66, where a reinforcing pillar is arranged;

Fig. 74 shows a section according to the vertical plane of the upper flaps folded by horizontal folds in the upper mouth of the reinforced container of Figs. 71-73;

the Figs. 74a and 74b show respective sections according to respective vertical planes of respective alternative embodiments of upper flaps folded by horizontal folds at the upper mouth of the reinforced container, similar to the embodiment of Fig. 74;

Fig. 75 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to a tenth embodiment;

Fig. 76 is a cross section of a top plan view of the reinforced container of the present invention, according to the tenth embodiment, obtained with the single strip of Fig. 75;

Fig. 77 is an enlarged view of detail XXVI of Fig. 76;

Fig. 78 is a bottom plan view of the reinforced container of Fig. 76;

Fig. 79 is a top perspective view of the reinforced container of the tenth embodiment obtained with the single band of Fig. 75;

Fig. 80 is an enlarged view of detail XXVII of Fig. 79;

Fig. 81 is a plan view of the single band with which the body of the reinforced container of the present invention is obtained, according to an eleventh and/or a twelfth embodiment;

Fig. 82 is a cross section of a top plan view of the reinforced container of the present invention, according to the eleventh embodiment, obtained with the single strip of Fig. 81;

Fig. 83 is an enlarged view of detail XXVIII of Fig. 81;

Fig. 84 is a top perspective view of an assembled tongue and groove element corresponding to a first embodiment of a retaining element for immobilizing the reinforcement pillars with respect to the first and/or second side walls, used in the reinforced container of Figs. 82-83;

Fig. 85 is a top perspective view of an unassembled tongue and groove element, where its male and female parts are uncoupled, not inserted into each other;

Fig. 86 is a side view of an assembled tongue-and-groove element corresponding to a second embodiment of a retaining element for immobilizing the reinforcement pillars with respect to the first and/or second side walls;

Fig. 87 is a view where the tongue and groove element has the male part inserted into the female part;

Fig. 88 is a top perspective view of the reinforced container of the eighth embodiment obtained with the single band of Fig. 81 and shown in Figs. 82-83;

Fig. 89 is an enlarged view of detail XXIX of Fig. 88;

the Figs. 90 and 91 are respective cross sections of top plan views of the reinforced container of the present invention, according to the eleventh or twelfth embodiments, respectively, including the first embodiment of retaining elements of Fig. 84 and the second embodiment of retaining elements of Fig. 84. Fig. 87, respectively;

Fig. 92 shows a schematic side view of the reinforced container of the first aspect of the invention, according to any embodiment, stacked and supported on a respective pallet, and at the same time represents a schematic side view of the palletized structure of the second aspect of the invention. the invention according to a first embodiment;

Fig. 93 is the other side view of Fig. 92;

Fig. 94 shows a schematic side view of the reinforced container of the first aspect of the invention, according to any embodiment, stacked and supported on a respective pallet, and represents at the same time a schematic side view of the palletized structure of the second aspect of the invention according to a second embodiment;

Fig. 95 is the other side view of Fig. 94;

Fig. 96 shows a schematic side view of the reinforced container of the first aspect of the invention, according to any embodiment, stacked and supported on a respective pallet, and at the same time represents a schematic side view of the palletized structure of the second aspect of the invention. the invention according to a third embodiment;

Fig. 97 is the other side view of Fig. 96; and

Fig. 98 shows a schematic side view of the reinforced container of the first aspect of the invention, according to any embodiment, stacked and supported on a respective pallet, and at the same time represents a schematic side view of the palletized structure of the second aspect of the invention. the invention according to a fourth embodiment.

DETAILED DISCLOSURE OF PREFERRED EMBODIMENTS

In the figures, the reference 40 designates generically the reinforced container (40) of the first aspect of the invention.

The common features for all embodiments of the reinforced container (40) are described below, making explicit reference to the figures of the third embodiment of Figs. 12 to 18, for simplicity, unless it is made explicit that it is a concrete and/or particular embodiment of a specific embodiment.

Common to all embodiments, Figs. 13, 15 and 16 show that the reinforced container (40) comprises a body, obtained with a single band (20) of die-cut corrugated cardboard shown in Fig. 12.

Common to all embodiments, Figs. 13, 15 and 16 show that the body comprises a lateral contour formed by a plurality of flat side walls, an upper mouthpiece, and a bottom.

Common to all embodiments, the upper mouthpiece, best shown in Figs.

16 and 18, is at least partially open and is delimited by upper parts of the flat side walls of the body.

In the specific case of Fig. 16, the upper mouth is delimited by first and second upper flaps (51, 52) joined to the upper part of first and second side walls (44, 45), and folded by horizontal folds. superiors (53), which will be described in detail later.

In the specific cases of the embodiments of Figs. 1-11, an upper punched cut line (17) delimiting the upper parts of the first and second side walls (44, 45), once folded, delimits the mouth open at the top of the reinforced container (40).

The Figs. 13, 15 and 16 show that the body also comprises a bottom, configured to be supported on a pallet (70), formed by lower flaps (47, 48) connected to the lower part of four side walls by respective lower horizontal folds ( 49).

Thus, in Fig. 12, the only band (20), which corresponds in this specific case to a single plate (10) stamped with weakened fold and cut lines, the bottom is formed by folding the two lower panels (8) larger, and two lower lower panels (7) smaller, around the respective lower horizontal weakened lines (9) punched, becoming two lower lower flaps (47) larger and two lower lower flaps (48) smaller perpendicular to the side walls of the body, folded around the respective lower horizontal folds (49), as shown in Figs. 12-16.

In Figs. 13 and 16, the body has a lateral contour formed by a plurality of flat side walls, which define a closed polygonal cross section that reinforces the reinforced container (40) against horizontal forces.

Common to all embodiments, following in Figs. 13, 15 and 16, said plurality of flat sidewalls includes two mutually facing first sidewalls (44) and two mutually facing second sidewalls (45).

The first and second side walls (44, 45) form four corner zones of the lateral contour of the body.

Common to all embodiments, Figs. 13, 15 and 16 show that the first and second side walls (44, 45) are arranged around the bottom, surrounding it, and are perpendicular to the bottom.

In the embodiments of Figs. 12-91, the first and second side walls (44, 45) are delimited on the upper side by respective upper horizontal folds (53) formed around the respective upper weakened horizontal lines (13) punched out of the band (20), as shown the Figs. 1, 6, 12, 19, 25, 29, 37, 45, 50, 58, 66, 75, 81.

The first and second side walls (44, 45) are delimited below by respective lower horizontal folds (49) formed around respective lower weakened horizontal lines (9) punched out of the band (20), as It is seen in Figs. 1, 6, 12, 19, 25, 29, 37, 45, 50, 58, 66, 75, 81.

Common to all embodiments, the side walls (44, 45, 46a, 46b) of said plurality of side walls are connected one after the other, in series, by respective vertical folds (42) parallel to each other. Likewise, each side wall (44, 45, 46a, 46b) is delimited laterally by the vertical folds (42).

Also, common to all embodiments, two mutually end side walls of the folded band (20) are mutually attached.

Preferably, said end side walls can be joined by a joining end side panel (3), as shown in Figs. 13 and 16, the body forming a lateral contour of cross section closed by an end lateral portion (43) of connection, as shown in Fig. 13.

This union of mutually extreme side walls may be by gluing and/or stapling, preferably in an overlapping area, among other options.

Alternatively, the band may lack said joining end panel (3) and may be butt-joined, with adjacent end edges joined by, for example, an adhesive strip attached to both ends of the band, among other options.

The Figs. 12 and 17-18 show that the band (20) constituting the body is a band (20) punched out of double-walled corrugated cardboard. That is, the body is made up of only five sheets: three smooth sheets (21) and two corrugated sheets (22) arranged between two of the smooth sheets (21), as shown in Fig. 17.

Fig. 17 shows that the corrugated sheets (22) are of different corrugation amplitude from each other to increase the mechanical resistance of the reinforced container (40).

Furthermore, Figs. 12, 16 and 18 show that the corrugated sheets form vertical grooves (23), arranged perpendicular to the bottom, in each of the side walls of the plurality of side walls, to increase the compressive strength of the reinforced container (40).

For the other embodiments of the reinforced container (40), this structure of the corrugated cardboard and the orientation of the grooves (23) is shown in detail in Figs. 1, 4, 6, 9, 26-28, 34-36, 42-44, 55-57, 63-65, 71-73, 79-80 and 88-89.

Returning to the reinforced container (40) of Figs. 12-18, common to all embodiments, each double-wall corrugated cardboard right angle of the plurality of right angles of each reinforcing pillar, each side wall and each vertical fold (42) of the body has a continuous vertical extension that extends extends from bottom to top upper mouth, to reinforce compression (vertically) and expansion (horizontally / laterally / radially) the reinforced container (40).

Common to all embodiments, Figs. 13, 14, 16 and 18 show that, in the reinforced container (40), each corner zone of the lateral contour of the body further comprises a reinforcing pillar formed by at least three respective constitutive planar corner side walls (46a, 46b). of said plurality of flat sidewalls.

Following in these figures, commonly to all the embodiments, in each reinforcing pillar of each corner zone, the respective corner side walls (46a, 46b) are connected one after the other, in series, folded respective vertical folds ( 42).

In the particular embodiment of Figs. 6-11, Figs. 7 and 10 show that a reinforcing pillar comprises three corner side walls (46a, 46b), two first side walls (46a) and a second side wall (46b), while Figs. 7-8 shows that each of the other three reinforcing pillars comprise four corner side walls (46a, 46b), two first side walls (46a) and two second side walls (46b) alternately serialized.

In each of the specific embodiments of Figs. 1-5 and 12-28, each of the four corner areas of the lateral contour of the body comprises a reinforcing pillar formed by four respective corner side walls (46a, 46b), two first side walls (46a) and two second side walls (46b) serialized alternately.

Common to all embodiments, continuing in Figs. 12-18, each reinforcing pillar of each corner zone includes a respective multi-layer wall comprising at least one respective triple lateral wall of double-walled corrugated cardboard formed by said at least three respective lateral walls (44, 45, 46a, 46b) with respective flat surfaces thereof in mutual contact.

Common to all embodiments, Figs. 14, 16, 18, 21, 26, 28, 31, 34, 36, 39, 42, 44, 55, 57, 65, 73, 77, 79, 88 and 91 show that, in the reinforced container (40), each reinforcing pillar of each corner area comprises a plurality of double-walled corrugated cardboard right angles formed by the at least three respective flat corner side walls (46a, 46b).

Common to all embodiments, following in Figs. 14, 16, 18, 21, 26, 28, 31, 34, 36, 39, 42, 44, 55, 57, 65, 73, 77, 79, 88 and 91, each double-wall corrugated cardboard right angle is formed by a first flat corner side wall (46a) and a second flat corner side wall (46b), connected in series one immediately following the another, folded perpendicularly by one of said vertical folds (42), respectively.

Preferably, following these Figs. 14, 16, 18, 21, 26, 28, 31, 34, 36, 39, 42, 44, 55, 57, 65, 73, 77, 79, 88 and 91, each triple multilayer wall of each reinforcement pillar is a respective solid double-walled corrugated cardboard that can be inscribed by one or more respective rectangles. Each reinforcing pillar is made up of the plurality of right angles and the multilayer wall or walls that delimit a cross section that essentially comprises one or more rectangles.

Advantageously, the configuration of this solid increases the resistance while optimizing the internal volume of the reinforced container (40), either with a rectangular or octagonal exterior and/or interior lateral contour, as will be detailed later.

In Figs. 3, 8, 14, 18, 21, 28, 36, 77, 83 the solid of the reinforcing pillar can be inscribed in a rectangle, that is to say, said cross section of the reinforcing pillar comprises a rectangle.

In Figs. 44, 57, 65 and 73, the solid cardboard of the reinforcing pillar can be inscribed in two rectangles, that is to say, said cross section of the reinforcing pillar comprises two rectangles arranged in the shape of an L.

In the particular case of Figs. 12-18, Figs. 14 and 18 show in detail that each reinforcing pillar of each corner area comprises four right angles of double-walled corrugated cardboard formed by two first corner side walls (46a) and two second corner side walls (46b), alternately arranged.

In the fifth embodiment, Figs. 31, 34 and 36 show in detail that each reinforcing pillar of each corner area comprises eight right angles of double-walled corrugated cardboard formed by four first corner side walls (46a) and four second corner side walls (46b). ), arranged alternately.

In the particular embodiment of Figs. 6-11, Figs. 7 and 10 show that a reinforcing pillar comprises two double-wall corrugated cardboard right angles formed by two first corner side walls (46a) and a second corner side wall (46a), while Figs. 7-8 show that each of the other three reinforcing pillars comprise four right angles of double-walled corrugated cardboard formed by four corner side walls (46a, 46b), two first side walls (46a) and two second side walls (46a, 46b). 46b) serialized alternately.

Common to all embodiments, seeing for example Figs. 16 and 18, in the container reinforced (40), each double-walled corrugated cardboard right angle of the plurality of right angles of each reinforcing pillar, each first side wall (44), each second side wall (45), each corner side wall (46a, 46b) and each vertical fold (42) has a respective continuous vertical extension that extends from the bottom to the upper mouth.

In Figs. 92-98, said respective continuous vertical extensions from the bottom to the upper mouth have a measurement corresponding to the vertical dimension (D1) or height of the reinforced container (40).

Common to all embodiments, although express reference is made here to Figs.

14, 16 and 18, in the reinforced container (40), the four pluralities of double-walled corrugated cardboard right angles of the reinforcement pillars are synergistically configured together to reinforce the reinforced container (40) against vertical compression forces. and under horizontal stresses, said horizontal stresses including both longitudinal and transverse stresses.

Common to all embodiments, although express reference is made here to Figs.

14, 16 and 18, in the reinforced container (40), the four pluralities of double-wall corrugated cardboard right angles of the reinforcing pillars are synergistically configured together to maintain the reinforcing pillars in position under said vertical forces at compression and before said horizontal forces, both longitudinal and transversal.

Common to all embodiments, although express reference is made here to Figs.

14, 16 and 18, in the reinforced container (40), the four pluralities of double-walled corrugated cardboard right angles of the reinforcing pillars are synergistically configured together to enable the upper mouth to support one (Figs. 94, 95 and 98) or two sets (Figs. 92, 93 and 96) of reinforced container (40) and pallet (70) stacked.

The upper mouth of the lower container (40) of the stack is configured to support a stacked reinforced container (40) and pallet (70) assembly, in the three-high stacks of Figs. 92, 93 and 96.

The upper mouth of the lower container (40) of the stack is configured to support two sets of reinforced container (40) and pallet (70) in stack, in the two-high stacks of Figs. 94, 95 and 98.

Optionally, Figs. 18, 28, 44, 57, 65, 73, 79 and 88, show that the corner side walls (46a, 46b) are delimited above and below by respective folded cut-out lines (57), which are separated from each other. a vertical distance corresponding to the vertical height of the reinforced container, associated with a distance from the bottom to the upper mouth.

The folded cut-out lines (57), folded into the interior volume of the body, are formed by folding portions of cut-out lines (17), extending essentially parallel to each other, of the unfolded band (20). , as seen in Figs. 1, 6, 12, 19, 25, 29, 37, 45, 50, 58, 66, 75, 81.

In said figures of the unfolded strip (20), each first and each second sector of the smaller panel (6a, 6b), forming each first and each second corner side wall (46a, 46b) is delimited above and below by a pair of portions of punched cut lines (17) of the unfolded band (20), which are separated from each other by a vertical distance corresponding to the vertical height of the reinforced container (40), once formed, associated with the distance from the bottom to the upper mouth or vertical dimension (D1) of the container shown in Figs. 92-98.

Optionally, each cut-out line (17) can be linear as in Figs. 1, 6, 45, 50, 66 and 81, or it may be a broken cutout line (17) as in Figs.

12, 19, 24, 25, 29, 37 and 58 and/or a combination of these options as shown in Fig. 75.

Continuing in said figures of the unfolded band (20), the portions of lower punched cut lines (17) of the unfolded band (20) are aligned and essentially coincide with the lower weakened horizontal lines (9).

Continuing in said figures of the unfolded band (20), each lower punched cut line portion (17) is sandwiched between two adjacent lower weakened horizontal lines (9) once the band (20) has the opposite end side panels joined, preferably with the joining end panel (3), as shown for example in Figs. 25 26.

In the embodiments of Figs. 1-11, the upper punched cut line portions (17) of the unfolded band (20) are aligned with and essentially coincident with the tops of the sidewalls.

In the embodiments of Figs. 1-11, each lower punched cut line portion (17) is sandwiched between the upper punched portions of the first and second adjacent side panel sectors (4, 5), once the band (20) has the extreme side panels opposite joined, preferably with the joining end panel (3), as shown in Figs. 2, 7 and 10.

Preferably, in the embodiments of Figs. 1-5 and 12-91, in each corner area, the reinforcement pillar is formed by at least four respective corner side walls (46a, 46b), at least two first corner side walls (46a) and at least two second corner side walls (46b), constituting said plurality of walls flat sides, connected one after the other, in series, folded by at least five respective vertical folds (42). Furthermore, in each corner area, the reinforcing pillar comprises at least four right angles formed by the at least four respective corner side walls (46a, 46b). Each right angle is formed by one of said first flat corner side walls (46a) and one of said second flat corner side walls (46b), connected one immediately after the other, folded perpendicularly by vertical folds (42) .

This preferred option advantageously increases the resistance of the reinforced container (40), both to compression and to horizontal forces, both longitudinal and transverse with a minimum development of raw material for the band (20) constituting the body of the reinforced container (40).

In the embodiments of Figs. 1-91, the first corner side walls (46a) and second corner side walls (46b) are arranged alternately.

Preferably, in the embodiments of Figs. 1-5 and 12-91, in the reinforced container (40), the distance measurement between the vertical folds (42) delimiting the first corner side walls (46a) is at least 25% greater than the distance measurement between the vertical folds (42) delimiting the second corner side walls (46b). The measurement of separation between vertical folds (42) of the second corner side walls (46b) is corresponding, in turn, to twice the thickness of the double-wall corrugated cardboard die-cut band (20).

Optionally, the distance between vertical folds (42) of the second corner side walls (46b) is between 6 and 20 millimeters.

Optionally, the measurement of separation between vertical folds (42) of the first corner side walls (46a) is, at least, a measurement between 7.5 and 25 millimeters. For example, this measurement can be between 10 and 40 millimeters.

It is noted that the drawings are a schematic representation.

In another option, in the embodiments of the reinforced container (40) of Figs. 1-5 and 12-91, the distance between the vertical folds (42) delimiting the first corner side walls (46a) can be, for example, between 200 and 600% greater (between two and six times greater ) that the measurement of separation between the vertical folds (42) delimiting of the second corner side walls (46b).

In the alternative embodiment of Figs. 6-11, in the reinforced container (40), the measurement of separation between the vertical folds (42) delimiting the first corner side walls (46a) is equal to the measurement of separation between the vertical folds (42) delimiting the the second corner side walls (46b), the measurement of separation between vertical folds (42) corresponding to twice the thickness of the double-wall corrugated cardboard die-cut band (20).

In an example of this alternative option, the measurement of separation between vertical folds (42) of the first and second corner side walls (46a) can be between 6 and 20 millimeters.

Thus, advantageously, the reinforced container (40) of the present invention improves both transverse and longitudinal resistance, thanks to the plurality of right angles of each reinforcement pillar, using a minimum development of cardboard (minimum raw material), making it possible to use solutions with corner side walls (46, 46b) of equal and/or different measurements between vertical folds (42), reducing the surface area and/or thickness of the cardboard, minimizing raw material, and lowering production costs of the reinforced container (40).

Preferably, as shown in Figs. 1-23 and 26-91, in the reinforced container (40), the corrugated cardboard strip (20) constituting the body is a single die-cut sheet (10) that includes a plurality of panel sectors (4, 5, 6a, 6b) in series, the plurality of side walls (44, 45, 46a, 46b) of the body being formed by said panel sectors (4, 5, 6a, 6b).

This preferred option maintains all the advantages related to improved resistance, while optimizing the manufacturing costs of the reinforced container (40), by using a single blank blank to obtain the body of the reinforced container (40).

Preferably, in the embodiments of the reinforced container (40) of Figs. 1-91, in the band (20) of double-walled corrugated cardboard constituting the body, a plurality of panel sectors (4, 5, 6a, 6b) serialized, connected by respective weakened vertical lines (2) punched, parallel to each other. , which define in the folded body the vertical folds (42) that connect some side walls (44, 45, 46a, 46b) with others.

In this preferred option, the weakened vertical lines (2) stamped facilitate the correct folding of the corner side walls (46a, 46b) by the vertical folds (42) so that advantageously the plurality of right angles and the corner side walls ( 46ab, 46b) are positionally and angularly defined, keeping the reinforcement pillar in its position, advantageously avoiding unwanted excessive internal stresses caused due to forced folding, excessive internal stresses that may eventually open laterally when the reinforcement pillar is folded, undesirably adopting the open pillar in the form of an "accordion" or "bellows", partially extended or fully extended, which dramatically loses its resistance, and, subsequently, it causes the reinforced container (40) to collapse under stacked conditions.

In another option shown in Figs. 24 and 26-28, corresponding to the variant of the fourth embodiment, the band (20) of double-walled corrugated cardboard constituting the body are several sheets (10) die-cut of double-walled corrugated cardboard with end panels for joining each sheet (10 ) attached to each other. In the band (20) constituting the body, each of the plates (10) comprises a plurality of panel sectors (4, 5, 6a, 6b), the plurality of side walls (44, 45, 46a, 46b) being formed ) of the body by the plurality of panel sectors (4, 5, 6a, 6b) of the plates (10).

This band option (20) made up of several plates (10) has the advantage of simplifying production, improving handling, and therefore production costs, of reinforced containers (40) of a development of considerable measures, for example, those reinforced containers (40) with measurements such that their interior volume covers at least 80% of the surface area of a pallet (70) measuring approximately 1000 x 800 millimeters, approximately 1000 x 1200 millimeters or approximately 1140 x 1140 mm.

Preferably, in the reinforced container (40) of Figs. 1-91, each of the vertical extensions of the side walls (44, 45, 46a, 46b), each of the vertical extensions of the folds (42) and each right angle of each plurality of right angles have an equal dimension. vertical (D1) between 500 and 1200 millimeters, as additionally shown in Figs. 92-98, to reinforce the reinforced container (40) and to enable the stacking of two or three palletized structural assemblies, each palletized structural assembly comprising one or two reinforced containers (40) supported at the same height on a respective pallet (70). .

That is, thanks to the reinforcement provided by the structural reinforcement pillars formed by 90° right angles, with the same vertical dimension (D1) between 500 and 1200 millimeters, constituting the plurality of side walls (44, 45, 46a, 46b) of the body itself, in each corner area, the reinforced containers (40) advantageously:

- they do not have a height - distance between the bottom and the upper mouthpiece - limited to about 60 centimeters, and said distance can now be any one between 50 and 120 centimeters, or even more; and

- They can be stacked in palletized structural assemblies both at two and three heights, one on top of the other, each reinforced container (40) being supported on a pallet (70).

For example, the reinforced containers (40) of the present invention can be stacked in two palletized structural assemblies, each reinforced container (40) having a height of, for example, 100 centimeters, as shown in Figs. 94-95 and 98, and also the reinforced containers (40) of the present invention can be stacked in three palletized structural assemblies, each reinforced container (40) having a height of 60 centimeters, as shown in Figs. 92-93 and 96.

Thus, the volume occupied in transport containers is increased, reducing the carbon footprint per kilo of product transported, and the cost associated with the development of cardboard (cardboard band) necessary per kilo of product transported can be optimized.

The structural resistance of the reinforcement pillar is determined by the number of corner side walls (46a, 46b), by the configuration of the corner side walls (46a, 46b) and their measurements, in one or more multilayer walls. of double wall corrugated cardboard triple sidewall, and the number of vertical folds (42), including number of vertical folds (42) that form a right angle between corner sidewalls (46a, 46b).

Optionally, in the embodiments of Figs. 1-74 and 81-91 of the reinforced container (40), each reinforcing pillar of each corner zone includes at least two first corner side walls (46a) with their surfaces in contact. In each reinforcing pillar of each corner area, one of these first corner side walls (46a) is in contact with a first or second side wall (44, 45). These at least two first corner side walls (46a) and a first or second side wall (44, 45) form a triple side wall in each corner area.

Thus, advantageously, the reinforced container (40) has improved resistance with a minimum use of raw material, in addition, the arrangement of the multilayer wall in contact with a first or second side wall (44, 45) optimizes the interior volume of the reinforced container. (40) to be filled with product.

Additionally, in the embodiments of Figs. 1-6 and 19-73 of the reinforced container (40), in each reinforcement pillar of each corner area, one of the corner side walls (46a) is in contact with a first side wall (44), the first being side wall (44) larger than the second side walls (45), forming these side walls a triple side wall in each corner area.

Thus, advantageously, the reinforced container (40) has improved resistance with a minimum use of raw material, thanks to the provision of the oriented reinforcement pillar reinforcing the larger side walls that are weaker due to the greater distance between vertical folds. (42) delimiting side walls (44, 45, 46a, 46b).

In the embodiments of Figs. 29-73, in the reinforced container (40), each reinforcing pillar of each corner area comprises nine vertical folds (42) and the corner flat side wall surfaces (46a, 46b) form nine right angles.

Following the option of Figs. 37-73, each corner area comprises at least two first corner side walls (46a) with their surfaces in contact, and one of these first corner side walls (46a) is in contact with a first side wall (44), these first two corner side walls (46a) and first side wall (44) forming a triple side wall multilayer wall.

Continuing in the option of Figs. 37-73, each corner zone comprises at least two other first corner side walls (46a) with their surfaces in contact, and one of these other two corner side walls (46a) is in contact with a second side wall (45a). ), these other first two corner side walls (46a) and the second side wall (45) forming another multilayer triple side wall wall.

In the option of Figs. 37-73, in the reinforced container (40), in each corner zone, the first corner side walls (46a) of one multi-layer wall are perpendicular to the other first corner side walls (46a) of the other multi-layer wall, forming an L-shaped triple sidewall multilayer double wall in each corner area.

Thus, advantageously, the perpendicular arrangement of these two multilayer walls that are substantially L-shaped and that together include nine right angles following different orientations, in each corner area of the reinforced container (40), provides improved resistance both to compression and to longitudinal and transversal horizontal efforts, with a minimum raw material used.

Preferably, in Figs. 1-73 and 79-91, the outer side contour of the reinforced container (40) is rectangular in shape to maximize the volume to be contained by the reinforced container (40).

In the option of Figs. 75-80, in each corner zone of the reinforced container (40), the reinforcement pillar is formed by five respective corner side walls (46a, 46b), three first corner side walls (46a) and two second side walls of corner (46b), constituting said plurality of flat side walls, connected one after the other, in series, folded by respective vertical folds (42).

Following this option of Figs. 75-80, in each corner area of the reinforced container (40), the reinforcing pillar comprises four right angles formed by the flat surfaces of the flat corner side walls (46a, 46b), each right angle being formed by a first wall corner side wall (46a) and second corner side wall (46b), connected one immediately after the other, folded perpendicularly by the folds (42).

Continuing in the option Figs. 75-80, in each corner area of the reinforced container (40), the reinforcing pillar includes a multi-layer wall comprising at least one triple corner side wall, formed by three first corner side walls (46a) with their surfaces at mutual contact, the multi-layer wall being arranged diagonally with respect to the first and second contiguous side walls (44, 45), forming a body with an octagonal inner and outer side contour with a multi-layer chamfer wall of at least triple side walls on each pillar of reinforcement of the corner area.

Thus, advantageously, the diagonal arrangement of the triple multilayer wall and the diagonal arrangement of the associated right angles in the corner areas makes the reinforced container (40) have improved resistance both to compression and to longitudinal and transverse horizontal forces, with a minimum development of material (minimum raw material used).

Advantageously, Figs. 75-80 show that, thanks to the diagonal arrangement of the right angles, the outer and inner lateral contour of the reinforced container (40) has an octagonal shape to increase the resistance of the container and mitigate deformations of the first and second side walls (44, 45), due to the smaller horizontal distance between the extreme vertical folds (42) of the first and second side walls 844, 45), as shown in Fig. 78, in addition to favoring adequate ventilation between palletized structures that include said reinforced containers. (40).

Preferably, in all the embodiments of the reinforced container (40), in each corner area, the reinforcing pillars are immobilized at their respective lower and/or upper ends by lower and/or upper parts of the band (20) constituting the body. , to immobilize the corner side walls (46a, 46b) folded by vertical folds (42) and to immobilize the right angle of folding of each pair of first corner side wall (46a) and second flat corner side wall (46b). connected one immediately after the other.

Said immobilization offers an improved resistance to compression and/or expansion and/or to bending in storage conditions and/or in conditions of handling and/or transport of the reinforced container (40), while maintaining low costs. of production, since said immobilization is by lower and/or upper parts of the band (20) constituting the body, and not by additional elements to the band (20) constituting the body.

The following paragraphs describe a multitude of embodiments for such immobilization.

In a first option, shown in the embodiments of the reinforced container (40) of Figs. 19-80, in each corner zone, a lower part (18) of the lower flaps (47, 48) cooperates with a lower part (6d) of the corner side walls (46a, 46b) to serve as an immobilization stop. transverse and/or longitudinal bottom of the corner side walls (46a, 46b).

In a first variant of the first option, shown in the embodiments of the reinforced container (40) of Figs. 19-80, in each corner zone, said lower part (18) of the lower flaps (47, 48) includes at least one lower cut line of the lower flaps (47, 48) in contact with a lower part (6d ) of the corner side walls (46a, 46b), which includes a lower projection of the first corner side walls (46a), to immobilize the reinforcing pillar from below by means of a snap connection.

In a second variant of the first option, shown in the embodiments of the reinforced container (40) of Figs. 19-74, in each corner zone, said lower cut line of the lower flaps (47, 48) delimits at least one cavity (19) of the lower flaps (47, 48) where the lower part (6d) is inserted. ) of the corner side walls (46a, 46b), which includes a lower projection of the first corner side walls (46a), to immobilize the reinforcing pillar from below by means of a snap connection.

In a second option, in the embodiments of Figs. 1-18, in each corner area, the reinforcing pillars are immobilized at their respective lower and/or upper ends by lower and/or upper parts of the band (20) constituting the body in a glue connection arranged on at least upper and/or lower portions the surfaces of the corner side walls (46a, 46b) and/or on at least the upper and/or lower portions arranged in the corner areas of the first and/or second side walls (44, Four. Five).

In this second option, said lower and/or upper immobilization part of the folded band (20) constituting the body corresponds to said tail, and said tail can be a gluing area included in the plate (10) or plates (10) with which the band (20) is obtained, and/or some beads of glue, and/or some beads of glue parallel to each other, and/or including the case of cold glue as thermo-meltable "hot-melt", and/or said glue also includes the case of adhesive strips, for example, double-sided adhesive strips.

Preferably, in the embodiments of Figs. 12-91 of the reinforced container (40), the upper mouth is reinforced by first upper flaps (51) attached to the upper part of two mutually facing side walls. The first upper flaps (51) are folded by upper horizontal folds (53) perpendicular to the vertical folds (42). In the reinforced container (40), each first upper flap (51) comprises a horizontal shelf flap (54) for stacking support and an end flap (55) for joining the first upper flaps (51) to one of the two walls. mutually facing sides.

Thus, the at least partially open upper mouthpiece, now reinforced with the first upper flaps (51), advantageously provides:

- a reinforced mouthpiece with improved stability and reliability for stacking support;

- Minimizes deformations under longitudinal and transversal forces, for example, under radial expansion forces that tend to open the mouth and/or oscillations in the upper mouth with respect to the bottom (bowing).

Preferably, in the embodiments of Figs. 12-91 of the reinforced container (40), the upper mouth is reinforced by second upper flaps (52) joined to the upper part of two other folded second mutually facing side walls. The second upper flaps (52) are folded by other upper horizontal folds (53) perpendicular to the vertical folds (43). In the reinforced container (40), each second upper flap (52) includes another horizontal shelf flap (54) for stacking support and/or another end flap (55) for joining the second upper flaps (52) to one of the two other mutually facing side walls.

Thus, the at least partially open upper mouthpiece, now reinforced with the first and second upper flaps (51, 52), advantageously provides:

- a more reinforced mouthpiece, with more improved stability and reliability, for support in stacking;

- further minimizes deformations under longitudinal and transversal forces, for example, under radial expansion forces that tend to open the mouth and/or oscillations in the upper mouth with respect to the bottom (bowing).

Optionally, in the die-cut unfolded bands (20) from which the the body of the embodiments of Figs. 12-9 show that each first top flap (51) and/or each second top flap (52) is formed from serrated top panels (14, 15, 16) that are connected to the top of the first and/or or second side walls (44, 45) by respective upper weakened horizontal lines (13) stamped.

Continuing in the bands (20) of these embodiments, each one of said serrated upper panels (14, 15, 16) includes a shelf flap (14) that will form the folded shelf flap (54), an end panel (15) that will form the end flap (55) folded, as well as an optional intermediate panel (16) which will form an optional intermediate flap (56), for example, the embodiment of Fig. 74b does not have said intermediate flap (56).

Continuing in the bands (20) of these embodiments, each one of said serrated upper panels (14, 15, 16) are connected in series to each other by respective upper weakened horizontal lines (13) punched around which the respective horizontal folds tops (53) of the first and/or second top flaps (51, 52) will remain located.

In the embodiment of Figs. 63-73, each first and/or second upper flap (51, 52) can be attached to a respective first and/or second side wall (44, 45) by gluing, with glue or adhesive arranged on the joining flaps (55). ) and or in at least the portion of each side wall where the joining flap is in contact for said joining, using glue applied manually and/or with a machine, using adhesive strips, thermo-melt glue, among other options.

In the embodiments of Figs. 12-65 and 74-91, each first and/or second top flap (51, 52) can be attached to a respective first and/or second side wall (44, 45) by interlocking, with at least a respective portion of the end flap (55a) inserted into at least one respective punched cutout (5a) made in the first and/or second side wall (44, 45).

In the embodiments of Figs. 12-91, each first and second upper flap (51, 52) comprises a horizontal shelf flap (54) for stacking support and an end flap (55) for joining the upper flaps (51, 52) to the side walls.

Preferably, Figs. 18, 28, 36, 44, 57, 65, 73, 79 and 89 show in detail that, for the embodiments of Figs. 12-91, in the reinforced container (40), in each corner area of the upper mouth, a respective lateral connection flap portion (54e) of the first and/or second upper flaps (51, 52) is arranged for join the first upper flaps (51) with the second upper flaps (52) in the corner areas.

Advantageously, this joining of the first and second upper flaps together with the lateral connecting flap portions (54e) provides that the upper mouthpiece acts as a closed polygonal ring, and not as individual reinforced slats, which:

- provides a highly reinforced mouthpiece, with improved stability and reliability, for support in stacking;

- Minimizes even greater deformations under longitudinal and transversal stresses, for example, under radial expansion stresses that tend to open the mouthpiece and/or oscillations in the upper mouthpiece with respect to the bottom (bowing).

Optionally, said joints with the lateral connection flap portions (54e) can be by gluing and/or by snapping.

Optionally, in the embodiments of Figs. 12-91, the lateral connection flap portions (54e) are arranged at the lateral ends of the second upper flaps (52), each lateral connection flap portion (54e) remaining, embraced, between a respective end of a flap. horizontal shelf (54) and a respective end of the end flap (55) joining the first upper flaps (51).

The figures of the unfolded band (20) of Figs. 12-91 show the portion of the lateral connection panel (14e) of the horizontal shelf panel (14), corresponding to each portion of the lateral connection flap (54e) in the folded band (20) constituting the body.

Preferably, Figs. 18, 28, 36, 44, 57, 65, 73, 79 and 88 show in detail that, for the reinforced container (40) embodiments of Figs. 12-91, in each corner area, at least part of one side end (55e) of a first and/or second top flap (51, 52) is adjacent to at least one of the corner side walls (46a, 46b). ) to serve as longitudinal and/or transverse upper stop of the folded corner side walls (46a, 46b) of the reinforcement pillar.

Advantageously, this upper stop in each corner zone, longitudinal and/or transverse, of a first and/or second upper flap (51, 52) adjacent to the corner side walls (46a, 46b), reinforces the reinforcement pillar formed by the corner side walls (46a, 46b) and vertical folds (42) forming a plurality of right angles in each corner of the reinforced container (40), under longitudinal and/or transverse load stresses due to storage and/or handling and/or transport, this stop of each corner area being in contact with corner side walls (46a, 46b), keeping in position the reinforcing pillars formed by the parts of the folded band (20) constituting the body.

Following these preferred embodiments detailed in Figs. 18, 28, 36, 44, 57, 65, 73, 79 and 88, in each corner zone, at least part of a lateral end of a first and/or second upper flap (51, 52) is configured to be in use contact with at least one of the lateral walls of corner (46a, 46b) to serve as upper longitudinal and/or transverse stop of the folded corner side walls (46a, 46b) of the reinforcing pillar.

In the option of Fig. 18, at least part of a lateral end (55e) of the end flap (55) joining a first upper flap (51) serves as a longitudinal upper stop.

In the option of Fig. 28, at least part of a lateral end (55e) of the end flap (55) joining a second upper flap (52) serves as a transverse upper stop.

In Figs. 19 and 29 of the unfolded band (20), it can be seen that the lateral end (55e) is obtained from a lateral end panel (15e) located in the upper serialized panels (14, 15, 16) forming the first and/or second upper flaps (51, 52).

Preferably, Figs. 36, 44, 57, 65, 73, 79 and 88 show in detail that, for the reinforced container (40) embodiments of Figs. 29-91, in each corner area of the reinforced container:

at least part of a lateral end (55e) of a first upper flap (51) is adjacent to a corner side wall (46a, 46b) to serve as an upper stop for longitudinal immobilization of the folded corner side walls (46a, 46b). of the reinforcing pillar, and

at least part of a lateral end (55e) of the second upper flap (52) is adjacent to another corner side wall (46a, 46b) to serve as an upper stop for transverse immobilization of the corner side walls (46a, 46b). folded reinforcement pillar.

Advantageously, this upper double stop in each corner area, longitudinal and transverse, of the first and second upper flaps (5152) adjacent to the respective corner side walls (46a, 46b), reinforces the reinforcing pillar formed by the corner side walls. (46a, 46b) and vertical folds (42) forming a plurality of right angles at each corner of the reinforced container (40), under longitudinal and/or transverse load stresses due to storage, and/or handling and/or transportation, leaving this double stop of each corner in contact with corner side walls (46a, 46b), thus keeping in position the reinforcing pillars formed by the parts of the folded band (20) constituting the body.

In the option of Fig. 36, in each corner area of the reinforced container (40), at least part of one side end (55e) of the end flap (55) joining the first upper flap (51), and optionally part of a lateral end (56e) of the intermediate flap (56) of the first upper flap (51) serves as a longitudinal upper stop adjacent to a first lateral wall (46a). In addition, in Fig. 36, in each corner area of the reinforced container (40), at least part of a lateral end (55e) of the end flap (55) joining the second upper flap (52), and optionally part of a lateral end (56e) of the intermediate flap (56) of the second upper flap (52) serves as a transverse upper stop adjacent to two second lateral walls (46b).

In the option of Figs. 44, 57 and 65, in each corner area of the reinforced container (40), at least part of a lateral end (55e) of the end flap (55) joining the first upper flap (51) serves as a longitudinal upper stop. adjacent to a second side wall (46b). Furthermore, in Figs. 44, 57 and 65, in each corner area of the reinforced container (40), at least part of a lateral end (55e) of the end flap (55) joining the second upper flap (52) serves as a transverse upper stop. adjacent to another second side wall (46a).

In the option of Fig. 73, in each corner area of the reinforced container (40), at least part of one side end (55e) of the end flap (55) joining the first upper flap (51) folded with triangular horizontal column shape (Fig. 74), and also part of a lateral end (56e) of the intermediate flap (56) of the first upper flap (51) in the shape of a triangular horizontal column (Fig. 74) serves as a stop longitudinal top of the corner side walls (46a, 46b). In addition, in Fig. 73, at least part of a lateral end (55e) of the extreme flap (55) joining the second upper flap (52) in the shape of a triangular horizontal column (Fig. 74), and also part of a lateral end (56e) of the intermediate flap (56) of the second upper flap (52) in the shape of a triangular horizontal column (Fig. 74), serves as a transverse upper stop for the corner side walls (46a, 46b) .

Preferably, in the embodiments of the reinforced container (40) of Figs. 19-44 and 58 65, 75-80, in each corner zone, at least one upper part (14a) of the first and/or second upper flap (51, 52) cooperates with at least one upper part (6u) of one of said corner side walls (46a, 46b) to serve as an upper immobilization stop for said folded corner side walls (46a, 46b).

Advantageously, said upper part (14a) helps to keep the reinforcing pillars in position in the face of vertical compressive forces and horizontal forces, both transverse and longitudinal, preventing the collapse of the reinforced container (40) in the face of said forces.

Optionally, in the reinforced container (40) embodiments of Figs. 19-44 and 58-65 and 75-80, in each corner zone, the upper part (14a) of the first and/or second upper flap (51, 52) includes at least one upper cut line that delimits a cavity upper part, wherein at least the upper part (6u) of the corner side walls (46a, 46b) including an upper projection is locked in a snap connection.

Advantageously, a joint by snapping does not require a bonding agent, which simplifies and cheapens the production of the folded band (20) constituting the body.

Optionally, in the reinforced container (40) embodiments of Figs. 12-18, 37-73 and 81-91, in each corner zone, an upper extreme lateral part (54u) of the shelf flap (54) of the first and/or second upper flap (51, 52) is supported on stacking in an upper part (57) of said corner side walls (46a, 46b) that includes a folded upper cut punch line to serve as an upper immobilization stop for the folded corner side walls (46a, 46b).

In the unfolded band (20) of Figs. 12-18, 37-73 and 81-91, the upper extreme lateral part (54a) is obtained from an upper extreme lateral portion (14u) of the upper serialized panels (14, 15, 16), specifically located in the side end of shelf panel (14).

Preferably, as shown by the embodiments of the reinforced container (40) of Figs. 1-91, in each corner zone, the folded corner side walls (46a, 46b) of the reinforcing pillar are immobilized at their lower and upper ends by respective lower and upper parts, respectively, of the band (20) constituting the body. Many examples of said upper and lower parts have been detailed in previous paragraphs.

Advantageously, this option improves the maintenance of the reinforcing pillars in their position, avoiding their positional deviation, resulting in an increase in the structural resistance of the reinforced container (40), in a simple and efficient way, at reduced costs when immobilizing by lower and upper parts of the band (20) constituting the body. The preceding paragraphs comprise a multitude of embodiments of said lower and upper parts.

Additionally, in the reinforced container (40), the corner side walls (46a, 46b) of the reinforcement pillars are immobilized with respect to the first and/or second side walls (44, 45) by a retaining element.

Thus, possible undesired relative movements between the first and second side walls (44, 45) and the reinforcing pillars of the reinforced container (40) are advantageously mitigated, during stacking conditions, during handling, storage and/or transport, maintaining a high resistance, for example, in the face of longitudinal and/or transverse load stresses that tend to sway the reinforced container (40) in stacking.

The following paragraphs describe some options for making said retaining element, which can be optionally combined with each other in the same reinforced container (40).

In a first option shown in Figs. 92-98, the reinforcing pillars are immobilized with respect to the first and/or second side walls (44, 45) by straps (80), corresponding to the retaining element, which surround, at least partially and/or completely, the Lateral contour of the body on the outer side.

In Figs. 94-95 and 97, the reinforcing pillars are immobilized with respect to the first and second side walls (44, 45) by straps (80), corresponding to the retaining element, which completely surround the outer lateral contour of the body.

In Figs. 92-93 and 96, the reinforcing pillars are immobilized with respect to the first and/or second side walls (44, 45) by some straps (80), corresponding to the retaining element, two straps (80), the lower and upper , completely encircle the outer lateral contour of the body. The intermediate strap (80) partially surrounds the outer lateral contour of each reinforced container, since it surrounds two reinforced containers (40).

In a second option, for example, in the embodiments of the reinforced container (40) of Figs. 1-18, in each corner area, the corner side walls (46a, 46b) of each reinforcing pillar are immobilized with respect to the first and/or second side walls (46a, 46b) by glue arranged on the surfaces of the corner side walls (46a, 46b) and/or the first and/or second side walls (44, 45), including the retaining element said tail.

Said retaining element that includes glue comprises the case of beads of glue applied manually or automatically, during and/or after the folding of the band (20) constituting the body, in the corner areas, for example, on the surfaces of the corner side walls (46a, 46b) and/or on the portions arranged in the corner areas of the first and/or second side walls (44, 45).

Said retaining element that includes glue also includes the case of adhesive strips that include glue or adhesive, for example, at least one double-sided adhesive strip, adhered manually or automatically, before, during and/or after the folding of the band ( 20) constituting the body, in the corner areas, for example, on the surfaces of the corner side walls (46a, 46b) and/or on the portions arranged in the areas of corner of the first and/or second side walls (44, 45).

In a third option, in the embodiments of the reinforced container (40) of Figs. 81-91, in each corner zone, the corner side walls (46a, 46b) in the reinforcement pillars are immobilized with respect to the first and/or second side walls (46a, 46b) by tongue and groove elements (90, 95 ), corresponding to the retaining element, inserted into holes (12) of the corner side walls (46a, 46b), each tongue-and-groove element (90, 95) comprising a male part (92, 97) and a female part (91, 95). 96) where the male element (92, 97) is insertable.

In the eleventh embodiment of reinforced container (40) of Figs. 81-85 and 88-90, a first embodiment of tongue and groove elements (90) includes a corresponding male part (92) with a headed threaded rod, and a female part having a threaded hole in a headed part. In said threaded hole, the thread of the rod is threaded to assemble the male and female part on both sides of the hole (12) of the corner side walls (46a, 46b), as shown in Figs. 82-83, 88 and 90.

Preferably, each reinforcement pillar is immobilized by a plurality of tongue and groove elements (90), optionally at least three, as shown in Fig. 88.

In the twelfth embodiment of reinforced container (40) of Figs. 81, 86-87 and 91, each corner zone includes a piece with a protrusion (97), optionally supported in a kind of buckle, corresponding to the male part, inserted in a hole (96), corresponding to the female part, made in an end portion of an elongated element (98).

Thus, for example, Fig. 91 shows that in the reinforced container (40), two elongated elements (98) each join two respective pillars facing each other in two first and/or second side walls (44, Four. Five).

The elongated elements (98) have drilled in both end portions, distal and proximal, at least one hole (96) that remains on the outside of the lateral contour of the reinforced container (40), leaving the parts with protuberances (97) arranged at the least one in each corner area on the outer side of the outer lateral contour of the body.

Optionally, in Fig. 91, the reinforced container also comprises a tongue-and-groove element (95) arranged in each corner area on the outer side of the outer lateral contour of the body.

Preferably, in the reinforced container (40), the bottom is at least partially open, which has the advantage of providing minimal cardboard surface development. for the only band (20) constituting the body, minimizing production costs of the reinforced container (40), while maintaining the structural resistance of the reinforced container (40) configured to form part of a single pallet assembly (70) and only one or two reinforced containers (40) supported on said pallet (40) at the same height during transportation.

Optionally, the lower flaps (47, 48) are joined together, by gluing and/or fitting.

In the embodiments of Figs. 66-74, in the reinforced container (40), the lower flaps (47, 48) joined together, by gluing, by glue/adhesive arranged between the overlapping portions of the lower flaps (47, 48).

With this gluing of the lower flaps (47, 48) the possible unwanted relative movements between parts of the body, such as the first and second side walls (44, 45) and the reinforcing pillars of the reinforced container (40) are advantageously further mitigated. , during stacking conditions, during handling, storage and transport, maintaining a high resistance, for example, before the longitudinal and/or transversal load stresses that tend to sway the reinforced container (40) in stacking.

In the embodiments of Figs. 1-65 and 75-91, in the reinforced container (40), the lower flaps (47, 48) joined together, by interlocking, by punched cut lines (19a) arranged in portions of the lower flaps (47 , 48).

Advantageously, a snap joint does not necessarily require a bonding agent, for example, adhesive/glue, for joining some parts of the body with others, which can be beneficial in terms of cost depending on the volume and nature of the order.

The second aspect of the invention refers to a palletized structure, the embodiments of which are shown in Figs. 92-98.

In said Figs. 92-98, the palletized structure comprises only two or three palletized structural assemblies, stacked vertically one on top of the other. That is, it is a stack that comprises two or three heights (levels) of said sets.

Each palletized structural assembly comprises only one or two of the reinforced containers (40) of the first aspect of the invention and a pallet (70) where said one or two reinforced containers (40) are supported at the same level or height.

In the first embodiment of Figs. 92-93, the palletized structure has only three heights, with a reinforced container (40) supported on each pallet (70) on the same level, one next to the other. In addition, the distance or vertical dimension (D1) between the bottom and the mouth The top of each reinforced container is preferably between 500 and 700 millimeters, for example, said distance (D1) is 600 millimeters.

In the second embodiment of Figs. 94-95, the palletized structure has only two heights, with a reinforced container (40) supported on each pallet (70) on the same level, one next to the other. In addition, the distance or vertical dimension (D1) between the bottom and the upper mouth of each reinforced container is preferably between 850 and 1,200 millimeters, for example, said distance (D1) is between 900 and 1,000 millimeters.

In the third embodiment of Figs. 96-97, the palletized structure has only three heights, with only two reinforced containers (40) supported on each pallet (70) on the same level, one next to the other. In addition, the vertical distance (D1) between the bottom and the upper mouth of each reinforced container is preferably between 500 and 700 millimeters, for example, said distance (D1) is 600 mm.

In the fourth embodiment of Fig. 98, the palletized structure has only two heights, with a reinforced container (40) supported on each pallet (70) on the same level, side by side. In addition, the distance or vertical dimension (D1) between the bottom and the upper mouth of each reinforced container is preferably between 850 and 1,200 millimeters, for example, said distance (D1) is between 900 and 1,000 millimeters.

Preferably, in Figs. 92-98, the reinforcement pillars of the one or two reinforced containers (40) supported at the same height on the pallet (70) are immobilized with respect to their respective first and/or second side walls (44, 45) of the body by at least least one single-line retaining element that tightly surrounds said one or two reinforced containers (40) by the outer lateral contour thereof. Thus, the at least one single-wire retaining element avoids possible positional deviations of the reinforcing pillars, for example, deviations from the vertical and/or longitudinal and transverse lateral deviations, which reduce the mechanical resistance of the reinforced container (40).

In Figs. 92-95, the reinforcing pillars are immobilized with respect to their respective first and/or second side walls (44, 45) of the body by straps (80), corresponding to the single-wire retaining element, which tightly and completely surround the lateral contour. outside of the body.

In Figs. 96-98, the reinforcing pillars are immobilized with respect to their respective first and/or second side walls (44, 45) of the body by some straps (80), corresponding to the single-wire retaining element, two straps (80), the lower one and upper, tightly and completely encircle the outer lateral contour of the body. The intermediate strap (80) tightly and partially surrounds the outer lateral contour of each reinforced container, since it surrounds two reinforced containers (40).

Preferably, the outer lateral contour of said one or two reinforced containers (40) supported on the pallet (70) at the same level or height occupy at least 80% of the base surface of the pallet (70).

Preferably, Figs. 92-98 show that the base surface of the pallet (70) can be any of the following (measured in millimeters by millimeters): 800 x 600, 1000 x 800, 1200 x 1000, and 1140 x 1140, that is, the The longest lateral measurement of the pallet (70) is between 800 and 1200 mm, and the shortest lateral measurement of the pallet (70), perpendicular to the longest lateral measurement of the pallet (70), is between 600 and 1140 mm.

The scope of the present invention is given by the following claims.

Claims (30)

1.- Reinforced cardboard container (40), comprising a body obtained with a single band (20) of cardboard, the body comprising: an upper mouthpiece, at least partially open, delimited by upper parts of side walls of the body; a bottom configured to be supported on a pallet (70), the bottom being formed by lower flaps (47, 48) connected to the lower part of at least four side walls by lower horizontal folds (49); and a lateral contour formed by a plurality of flat side walls, said plurality including two mutually facing first side walls (44) and two mutually facing second side walls (45), which configure four corner areas of the lateral contour of the body, the walls being flat sides of said plurality arranged around and perpendicular to the bottom, the side walls of said plurality being connected one after the other, in series, by respective vertical folds (42) parallel to each other, each side wall being delimited laterally by the vertical folds (42), and two end side walls of the folded band (20) being mutually joined; the reinforced container (40) being characterized in that the folded strip (20) constituting the body is a die-cut strip (20) of double-walled corrugated cardboard, with only three smooth sheets (21) and two corrugated sheets (22) arranged between two of the smooth sheets (21), and the two corrugated sheets (22) forming vertical grooves (23) in the plurality of side walls of the side contour; each corner zone further comprises a reinforcing pillar, formed by at least three respective flat corner side walls (46a, 46b), constituting said plurality of flat side walls, connected one after the other, in series, folded by respective vertical folds (42), each reinforcing pillar of each corner zone including a respective multilayer wall comprising at least one respective triple lateral wall of double-walled corrugated cardboard formed by said at least three respective lateral walls (44, 45, 46a , 46b) with their respective flat surfaces in mutual contact; each reinforcing pillar of each corner zone comprises a plurality of right angles of double-walled corrugated cardboard, formed by the at least three respective flat corner side walls (46a, 46b), each right angle of double-walled corrugated cardboard formed by a first flat corner side wall (46a) and a second flat corner side wall (46b), connected in series one immediately after the other, folded perpendicularly by one of said vertical folds (42); each right angle of double-walled corrugated cardboard of the plurality of right angles of each reinforcement pillar, each first side wall (44), each second side wall (45), each corner side wall (46a, 46b) and each fold vertical (42) has a respective continuous vertical extension that extends from the bottom to the upper mouth; and wherein the four pluralities of right angles of double-walled corrugated cardboard of the reinforcing pillars are jointly configured to reinforce the reinforced container (40) against vertical compressive forces and against horizontal forces, including said horizontal forces longitudinal and transverse forces, and to keep the reinforcing pillars in position before said efforts, and to enable the upper mouth to support one and/or two sets of reinforced container (40) and pallet (70) in stack. 2. - Reinforced container (40) according to claim 1, wherein, in each corner area: - the reinforcing pillar is formed by at least four respective corner side walls (46a, 46b), at least two first corner side walls (46a) and at least two second corner side walls (46b), constituting said plurality of flat side walls, connected one after the other, in series, folded by at least five respective vertical folds (42); and - the reinforcing pillar comprises at least four right angles formed by the at least four respective corner side walls (46a, 46b), each right angle being formed by one of said first flat corner side walls (46a) and one of said second flat corner side walls (46b), connected one immediately after the other, folded perpendicularly by the vertical folds (42). 3. - Reinforced container (40) according to claim 1 or 2, wherein the measure of separation between the vertical folds (42) delimiting the first corner side walls (46a) is at least 25% greater than the measure of spacing between the vertical folds (42) delimiting the second corner side walls (46b), being the measurement of spacing between vertical folds (42) of the second corner side walls (46b) corresponding, in turn, with twice the thickness of the band (20) die-cut from double-walled corrugated cardboard. 4. - Reinforced container (40) according to claims 1 or 2, wherein the measurement of separation between the vertical folds (42) delimiting the first corner side walls (46a) is equal to the measurement of separation between the vertical folds (42) delimiting the second corner side walls (46b), the separation measurement between vertical folds (42) corresponding to twice the thickness of the band (20) punched out of double wall corrugated cardboard. 5. - Reinforced container (40) any one of the preceding claims, wherein the band (20) of corrugated cardboard constituting the body is a single die-cut sheet (10) that includes a plurality of panel sectors (4, 5, 6a , 6b) serrated, connected by respective weakened vertical lines (2) punched, parallel to each other, which define in the folded body the vertical folds (42) that connect some side walls (44, 45, 46a, 46b) with others, being the plurality of side walls (44, 45, 46a, 46b) of the body formed by said panel sectors (4, 5, 6a, 6b). 6. - Reinforced container (40) according to any one of the preceding claims, wherein each of the vertical extensions of the side walls (44, 45, 46a, 46b) and each of the vertical extensions of the folds (42) and each right angle of each plurality of right angles have an equal vertical dimension (D1) between 500 and 1200 millimeters, to reinforce the reinforced container (40) and to enable the stacking of two or three palletized structural assemblies, each structural assemblage palletized comprising one or two reinforced containers (40) supported at the same height on a respective pallet (70). 7. - Reinforced container (40) according to any one of the preceding claims, wherein each reinforcing pillar of each corner area includes at least two first corner side walls (46a) with their surfaces in contact, and one of these first corner side walls (46a) are in contact with a first or second side wall (44, 45), these first two corner side walls (46a) and this first or second side wall (44, 45) forming a triple side wall in each corner area. 8. - Reinforced container (40) according to claim 7, wherein, in each reinforcing pillar of each corner area, one of the first corner side walls (46a) is in contact with a first side wall (44), the first side wall (44) being larger than the second side walls (45), these side walls forming a triple side wall in each corner area. 9. - Reinforced container (40) according to claim 8, wherein each reinforcing pillar of each corner area comprises nine vertical folds (42) and the surfaces of the corner flat side walls (46a, 46b) form nine angles straight, including each corner zone: - at least two first corner side walls (46a) with their surfaces in contact, and one of these first corner side walls (46a) is in contact with a first side wall (44), these side walls forming a multilayer wall of triple side wall; - at least two other first corner side walls (46a) with their surfaces in contact, and one of these other two corner side walls (46a) is in contact with a second side wall (45), these side walls forming another wall triple sidewall multilayer; and wherein, in each corner area, the first corner sidewalls (46a) of one multilayer wall are perpendicular to the other first corner sidewalls (46a) of the other multilayer wall, forming a triple sidewall multilayer wall with L shape in each corner area. 10. - Reinforced container (40) according to claim 2 and any one of claims 3 to 6, wherein in each corner area: - the reinforcing pillar is formed by five respective corner side walls (46a, 46b), three first corner side walls (46a) and two second corner side walls (46b), constituting said plurality of flat, connected side walls one after the other, in series, folded by respective vertical folds (42); - the reinforcing pillar comprises four right angles formed by the flat surfaces of the corner side walls (46a, 46b), each right angle being formed by a first corner side wall (46a) and a second corner side wall (46b). , connected one immediately after the other, folded perpendicularly; - the reinforcing pillar includes a multi-layer wall comprising at least one triple corner side wall, formed by three first corner side walls (46a) with their surfaces in mutual contact, the multi-layer wall being arranged diagonally with respect to the first and second side walls (44, 45) contiguous, forming an octagonal inner and outer side contour body with a multilayer chamfer wall of at least triple side walls in each corner area. 11. - Reinforced container (40) according to any one of the preceding claims, wherein, in each corner area, the reinforcing pillars are immobilized at their respective lower and/or upper ends by lower and/or upper parts of the band (20) constituting the body, to immobilize the corner side walls (46a, 46b) folded by vertical folds (42) and to immobilize the right angle of folding of each pair of first corner side wall (46a) and second side wall corner planes (46b) connected one immediately after the other. 12. - Reinforced container (40) according to claim 11, wherein, in each zone of corner, a lower part (18) of the lower flaps (47, 48) cooperates with a lower part (6d) of the corner side walls (46a, 46b) to serve as a transverse and/or longitudinal lower immobilization stop for the corners. corner side walls (46a, 46b). 13. - Reinforced container (40) according to claim 12, wherein, in each corner area, said lower part (18) of the lower flaps (47, 48) includes at least one lower cut line of the lower flaps ( 47, 48) in contact with a lower part (6d) of the corner side walls (46a, 46b). 14. - Reinforced container (40) according to claim 13, wherein, in each corner area, said lower cut line of the lower flaps (47, 48) delimits at least one cavity (19) of the lower flaps (47). , 48) where the lower part (6d) of the corner side walls (46a, 46b) is inserted, which includes a lower projection of the first corner side walls (46a), to immobilize the reinforcement pillar from below by a snap joint. 15. - Reinforced container (40) according to any one of the preceding claims, wherein the upper mouth is reinforced by first upper flaps (51), attached to the upper part of two mutually facing side walls, and folded by horizontal folds upper flaps (53) perpendicular to the vertical folds (42), where each first upper flap (51) comprises a horizontal shelf flap (54) for stacking support and an end flap (55) for joining the first upper flaps (51). ) to one of the two mutually facing side walls. 16. - Reinforced container (40) according to claim 15, wherein the upper mouth is reinforced by second upper flaps (52), attached to the top of two other second folded side walls facing each other, and folded by other horizontal folds upper flaps (53) perpendicular to the vertical folds (42), where each second upper flap (52) comprises another horizontal shelf flap (54) for stacking support and/or another end flap (55) for joining the second upper flaps (52) to one of the other two mutually facing side walls. 17. - Reinforced container (40) according to claim 16, wherein, in each corner area, in the upper mouth a respective portion of the lateral connection flap (54e) of the first and/or second upper flaps (51) is arranged. , 52) to join the first upper flaps (51) with the second upper flaps (52) in the corner areas. 18. - Reinforced container (40) according to any one of claims 15, 16 or 17, wherein, in each corner area, at least part of a lateral end (55e) of a first and/or second top flap (51, 52) is adjacent to at least one of the corner side walls (46a, 46b) to serve as longitudinal and/or transverse top stop of the folded corner side walls (46a, 46b). of the reinforcing pillar. 19. - Reinforced container (40) according to any one of claims 16, 17 or 18, wherein, in each corner area, at least part of a lateral end (55e) of a first upper flap (51) is adjacent to a corner side wall (46a, 46b) to serve as an upper stop for longitudinal immobilization the folded corner side walls (46a, 46b) of the reinforcement pillar, and at least part of one side end (55e) of the second upper flap (52) is adjacent to another corner side wall (46a, 46b) to serve as an upper stop for transversal immobilization of the folded corner side walls (46a, 46b) of the reinforcement pillar. 20. - Reinforced container (40) according to any one of the preceding claims 15 to 19, wherein, in each corner area, at least one upper part (14a) of the first and/or second upper flap (51, 52) it cooperates with at least one upper part (6u) of one of said corner side walls (46a, 46b) to serve as an upper immobilization stop for said folded corner side walls (46a, 46b). 21. - Reinforced container (40) according to claim 20, wherein, in each corner area, the upper part (14a) of the first and/or second upper flap (51, 52) includes at least one upper cut line delimiting an upper recess, in which at least the upper part (6u) of the corner side walls (46a, 46b) including an upper projection is immobilized in a snap connection. 22. - Reinforced container (40) according to any one of claims 15 to 21, wherein, in each corner area, an upper end lateral part (54u) of the shelf flap (54) of the first and/or second flap The upper part (51, 52) is supported in a stack in an upper part (57) of said corner side walls (46a, 46b) that includes a folded upper cut-out line to serve as an upper immobilization stop for the corner side walls. (46a, 46b) folded. 23. - Reinforced container (40) according to the combination of claim 12 with any one of claims 19 to 22, wherein, in each corner area, the folded corner side walls (46a, 46b) of the reinforcement pillar are immobilized at their lower and upper ends by respective lower and upper parts, respectively, of the band (20) constituting the body. 24. - Reinforced container (40) according to any one of the preceding claims, wherein the corner side walls (46a, 46b) of the reinforcement pillars are immobilized with respect to the first and/or second side walls (44, 45) by a retaining element. 25. - Reinforced container (40) according to claim 24, wherein the reinforcing pillars are immobilized with respect to the first and/or second side walls (44, 45) by straps (80), corresponding to the retaining element, which they surround, at least partially and/or completely, the lateral contour of the body on the outside. 26. - Reinforced container (40) according to claim 24 or 25, wherein, in each corner area, the corner side walls (46a, 46b) of each reinforcement pillar are immobilized with respect to the first and/or second walls sides (46a, 46b) by tail arranged on the surfaces of the corner side walls (46a, 46b) and/or the first and/or second side walls (44, 45), the retaining element including said tail. 27. - Reinforced container (40) according to any one of the preceding claims, wherein the bottom is at least partially open. 28. - Reinforced container (40) according to claim 27, wherein the lower flaps (47, 48) are joined together, preferably by gluing and/or fitting. 29. - Palletized structure, characterized in that it comprises two or three palletized structural assemblies, stacked vertically one on top of the other, each palletized structural assembly comprising only one or two of the reinforced containers (40) according to any one of the preceding claims and a pallet (70) wherein said one or two reinforced containers (40) are supported on the same level. 30. - Palletized structure according to claim 29, wherein the reinforcing pillars of one or two reinforced containers (40) supported at the same height on the pallet (70) are immobilized with respect to their respective first and/or second side walls ( 44, 45) by at least one single-line retaining element that surrounds said one or both reinforced containers (40) by their lateral contour on the outside.