WO2017182681A1 - Reinforcement for cardboard packaging, reinforcement-equipped cardboard packaging system, and method for the production of said reinforcement - Google Patents

Reinforcement for cardboard packaging, reinforcement-equipped cardboard packaging system, and method for the production of said reinforcement Download PDF

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Publication number
WO2017182681A1
WO2017182681A1 PCT/ES2016/070389 ES2016070389W WO2017182681A1 WO 2017182681 A1 WO2017182681 A1 WO 2017182681A1 ES 2016070389 W ES2016070389 W ES 2016070389W WO 2017182681 A1 WO2017182681 A1 WO 2017182681A1
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WO
WIPO (PCT)
Prior art keywords
reinforcement
cardboard
packaging
layer
sheet
Prior art date
Application number
PCT/ES2016/070389
Other languages
Spanish (es)
French (fr)
Inventor
Luis Felipe REGO GARCÍA DE ALBA
Original Assignee
Genetic Pop, Sl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Genetic Pop, Sl filed Critical Genetic Pop, Sl
Priority to EP16899313.7A priority Critical patent/EP3446995A4/en
Publication of WO2017182681A1 publication Critical patent/WO2017182681A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/441—Reinforcements
    • B65D5/445—Reinforcements formed separately from the container

Definitions

  • the present invention corresponds to the technical field of reinforcements for cardboard packaging, such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding their folding lines.
  • These cardboard packaging can be made by simple cardboard or by corrugated cardboard, to shape boxes, trays or other packaging modes. Initially, the preparation of these packaging was made with simple cardboard, but the need to obtain a higher load capacity resulted in the use of other types of cardboard, such as corrugated cardboard formed by at least one layer of internal cardboard that forms a series of corrugations or flutes and which is comprised between two outer layers of cardboard or paper.
  • corrugated cardboard formed by at least one layer of internal cardboard that forms a series of corrugations or flutes and which is comprised between two outer layers of cardboard or paper.
  • Corrugated cardboard packaging can use corrugated cardboard of one, two or more layers of inner corrugation.
  • corrugated cardboard although it increases the load capacity compared to a simple cardboard, before heavy products, does not solve the problem of the lack of resistance in the corners, given that the option of increasing the thickness of the cardboard to make the packaging more resistant it stops being profitable from a certain thickness, reason why the packaging with corrugated cardboard would also collapse. Therefore, the use of corrugated cardboard is not enough and the application of some type of reinforcement is necessary in these conflicting zones that are the corners.
  • Reference document US8317671 relates to a method of manufacturing a piece of cardboard to form a cardboard box having an upper wall, a lower wall, and two side walls. This method comprises a first step consisting of advancing a band of non-corrugated cardboard along a path, this band of uncorrugated cardboard is the one that when folded by the folding lines will shape a packing box.
  • the second stage consists in laminating at least one first belt and a second belt of reinforcing material for the first surface of the advance web of the non-corrugated cardboard.
  • the first and second ribbons have a width less than the width of the non-corrugated cardboard web.
  • the first tape is positioned and adheres, substantially in all but not beyond a first longitudinally extended panel portion of the non-corrugated cardboard web, and the second tape is positioned on, and adhered to, substantially all but not further , of a second panel portion longitudinally extended from the band.
  • the first tape and the second tape do not extend through the longitudinal fold lines.
  • the third stage consists of cutting the non-corrugated cardboard strip and the first and second laminated tapes through its length into a cardboard box having panels corresponding to the upper wall, the lower wall, and the two side walls of the box of cardboard, whereby the first tape and the second tape are located inside the cardboard box when the piece of cardboard is folded to form the same, reinforcing it.
  • the invention consists in the execution of a cardboard box and its reinforcements in a single process. This complicates its manufacture and makes it expensive, since it requires a special machine to carry out the process.
  • the reinforcements are formed by equal sheets stuck on top of each other without any sequence or order, which generates that from a certain thickness the sheet thus generated could no longer bend. This supposes the existence of a limitation in the thickness of the reinforcement.
  • This invention focuses on simple, non-corrugated cardboard, which is why the option of reinforcement of packaging made by corrugated cardboard is excluded, this being one of the most used today.
  • Reference document US8443975 defines an edge protector, comprising a first section formed from a laminate of paper or cardboard layers.
  • the first section is formed in an angled configuration defining a first and a second side, which define a first vertex between them.
  • the first vertex defines a first inner corner and a second outer corner and, said first and second sides and the first vertex define a first width.
  • the protector comprises a second section formed from a laminate of paper or cardboard layers that cover a central element or core. This core and the laminate are arranged in an angled configuration similar to that of the first section, defining a third and fourth side defining a second vertex between them.
  • the second vertex defines in turn a third interior corner and a fourth exterior corner and, the third and fourth lateral and the second vertex define a second width that is smaller than the first width and where, the layers that cover the central element or core they wrap around the fourth outer corner and extend inward towards the third inner corner.
  • the first and second sections are adhered to each other with the first and third sides joined together and the second and fourth sides also joined together.
  • an edge protector is proposed which has an angular shape and is formed by a series of layers superimposed on each other and constituted in two sections, one with the sides of greater length than the other and both adhered by their laterals respectively two two. This edge protector is placed in the corners of the packaging and comes to improve the resistance of the same.
  • this type of protector while effective in protecting the edges of packaging, presents certain drawbacks mainly due to its configuration in the form of a right angle, since it is defined as a protector formed by two sections, both arranged at right angles, glued one to the other and prepared to be placed in the corners of a package.
  • the raised edge protector does not facilitate its placement in the disassembled packaging, because if placed, the package must be previously assembled and transported already assembled, since the protectors have a right angle shape and by the very constitution of the same based on sheets pasted along the entire width of the sections that form it, this arrangement at right angles is fixed and invariable.
  • this edge protector applied at the edges of the packaging, rests on points of the base of the packaging that do not have any type of reinforcement, so that this support of each protector supposes a concentration of efforts in said points of the basis by which the package can even collapse.
  • the reinforcement for cardboard packaging such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding by its folding lines that is presented here, comprises a longitudinal reinforcement profile formed by two longitudinal segments arranged in the same horizontal forming an angle of 180 ° and a central zone of union thereof, capable of bending to form an angle between the segments comprised between 180 ° and 0 °.
  • the longitudinal profile has a laminated structure formed by at least one first and second superimposed layers, and means of joining between layers.
  • Said first and second layers are formed by a first sheet of cardboard whose width is greater than or equal to twice the width of the longitudinal profile, the first layer being formed by an intermediate zone of said first sheet, of width equal to the width of the profile longitudinal, and the second layer formed by two lateral bands of the first sheet on both sides of the intermediate zone and folded on it.
  • each segment of the longitudinal profile comprises at least one additional layer disposed between the first and the second layer, wherein said at least one additional layer is formed by a cardboard sheet whose width is equal to the width of said segment of the profile , where both segments have the same number of additional layers.
  • the longitudinal profile further comprises at least one intermediate layer arranged between the first layer and the second layer, formed by a cardboard sheet of width equal to the value resulting from adding the width of both segments of the profile and the from the central area of it.
  • the at least one intermediate layer of the longitudinal profile is located on the central line of the cross section thereof.
  • the cross section of the longitudinal profile comprises at least two intermediate layers, where the intermediate layers are located symmetrically with respect to the center line of said cross section.
  • the longitudinal profile of the reinforcement is susceptible to bending towards both sides.
  • the cross section of the longitudinal profile comprises at least one intermediate layer located asymmetrically with respect to the center line of said cross section, close to the first or second layer of the section and the profile is susceptible to bending towards the opposite side to that in which the intermediate layers are arranged.
  • the width of the central joining area of both segments of the longitudinal profile has a value greater than or equal to the value of the thickness of the profile in said segments and less than twice that thickness and , the longitudinal profile is capable of forming a minimum angle between the 90 ° segments.
  • the width of the central joining zone of both segments of the longitudinal profile has a value greater than or equal to twice the thickness of said segments and, it is capable of forming a minimum angle between the segments of 0 °.
  • the joining means between layers of the longitudinal profile are formed by a glue or adhesive material.
  • each longitudinal profile is suitable to be placed on at least two parallel folding lines of the packaging, where each bending line has its beginning on one side of the cardboard sheet flat and the end thereof on the opposite side of said sheet and where, in a folded position of the package, each of these fold lines comprises at least two vertical edges of junction between sides and a horizontal edge of the base of the package .
  • the packaging is formed by a sheet of corrugated cardboard, comprising two outer layers of coating and at least one layer of corrugation between them and, each longitudinal profile of the reinforcement is integrated inside said sheet, on at least one of said corrugation layers of the cardboard sheet.
  • each longitudinal profile of the reinforcement is located on said cardboard sheet of the package.
  • the placement of reinforcements can be done manually, by sticking them on the lines of bending, or mechanized in the case of corrugated cardboard packaging, integrating the placement of reinforcements, previously made, in the process itself of the corrugated cardboard sheet. In this way, the reinforcement is introduced between the end layers of the corrugated board during the manufacture thereof.
  • the first phase consists in placing a first sheet of cardboard.
  • the second phase is formed by folding the side strips of the first cardboard sheet, which form the second layer of the longitudinal profile, on the intermediate zone of said sheet, which forms the first layer of said profile.
  • the third phase consists in the union by means of joining the layers forming the profile.
  • the process comprises an intermediate phase, located between the first and the second phase, in which are placed on the first layer, at least one pair of additional layers, where each additional layer is arranged on one of the segments of the longitudinal profile.
  • the intermediate phase further comprises placing at least one intermediate layer in a certain position with respect to the additional layers and the cross section of the profile.
  • the packaging installation is reinforcement and the reinforcement manufacturing process for packaging proposed here provides a significant improvement of the state of the art.
  • a reinforcement is obtained formed by two segments joined by a central zone that performs the functions of hinge, so that the reinforcement does not have a fixed position of the segments and that favors the possible variation of the angle between them and by so much also of the angle of the corners of the packaging in which they are placed.
  • This is achieved by combining layers whose width is that of the entire profile and with layers that are only arranged in the area of the segments and not in the central area. In this way, said central area has a smaller thickness than the segments and allows its folding according to the needs.
  • This reinforcement thus allows, by varying the arrangement of the additional and intermediate layers, obtain a reinforcement capable of bending both sides, when the The distribution of the intermediate layers is symmetrical or, it allows it to bend only towards one of the sides, when this distribution is asymmetric, in which case the bending is done towards the opposite side to the one with the greatest presence of intermediate layers. Also, depending on the width of the central area of the reinforcement, which acts as a hinge, bending is allowed between 0 and 90 ° or between 0 and 180 °. This facilitates the existence of several options of the reinforcements depending on the subsequent needs of the packaging and the destination of the same.
  • reinforcements are increased and therefore those of the packaging with them, since the reinforcements can be installed in a package that is presented in the form of a flat sheet with folding lines and subsequently once arrived at their destination, they allow their folding for the assembly of the packaging. They also allow a folded subsequent to the use of the packaging, for storage.
  • the reinforcement can be placed on the surface of the cardboard sheet and, in the case of corrugated cardboard in addition, there is the option of locating the reinforcements inside the sheet, on at least one of the layers of corrugation and between the two outer layers of coating.
  • the packaging presents a visual continuity that is much more aesthetic than in the case that the reinforcement is arranged on the outside.
  • Figures 1.1 and 1.2.- Shows two diagrams of the cross section, with the second layer open and closed respectively, of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.
  • Figure 2 shows a plan view of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.
  • Figures 3.1 and 3.2.- They show the segments of a reinforcement in the positions of maximum and minimum angle between them respectively of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.
  • Figure 4 shows a profile view of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.
  • Figures 5.1 to 5.6.- They respectively show perspective views of a cardboard sheet for packaging with reinforcement for cardboard packaging in different packaging assembly positions, for a first preferred embodiment of the invention.
  • Figure 6 shows a diagram of the cross section of a reinforcement for cardboard packaging, for a second preferred embodiment of the invention.
  • the reinforcement 1 for cardboard packaging 2 such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding their fold lines 3 proposed here, comprises a longitudinal profile of reinforcement formed by two longitudinal segments 5 arranged in the same horizontal forming a angle of 180 ° and a central zone 6 of union thereof, capable of bending to form an angle between the segments comprised between 180 ° and 0 °
  • the longitudinal profile has a laminated structure formed by a first 7 and a second superimposed layers 8, and means of joining between layers.
  • Said first 7 and second layers 8 are formed by a first sheet of cardboard whose width is greater than twice the width of the longitudinal profile, the first layer 1 being formed by an intermediate zone 4 of said first sheet, of width equal to the width of the longitudinal profile, and the second layer 2 formed by two lateral bands 10 of the first sheet on both sides of the intermediate zone 4 and folded thereon.
  • both segments 5 of the longitudinal profile comprise four additional layers 1 1 disposed between the first 1 and the second layer 2, thus fulfilling that both segments 5 they present the same number of additional layers 1 1.
  • These additional layers 1 1 are each formed by a cardboard sheet whose width is equal to the width of said segment 5 of the profile.
  • the longitudinal profile further comprises three intermediate layers 12.1, 12.2, 12.3, arranged between the first layer 1 and the second layer 2.
  • the intermediate layers 12.1 , 12.2, 12.3, each one of them is formed by a cardboard sheet of width equal to the value resulting from adding the width of both segments 5 of the profile and that of the central zone 6 thereof.
  • the arrangement of the same in the cross section of the profile in this first preferred embodiment of the invention, consists of an intermediate layer 12.2 located on the center line of the cross section of the profile and the other two intermediate layers 12.1, 12.3, located symmetrically with respect to said central line.
  • the profile is susceptible to bending to both sides.
  • the width of the central zone 6 of union of both segments 5 of the longitudinal profile have a value greater than twice the thickness of said segments.
  • the thickness of the segments 5 has a value of 0.3 cm, while the width of the central zone 6 is 1 cm, greater than 0.6 cm which corresponds to twice the width of the central area 6. thickness of the segments 5.
  • the profile can form a minimum angle of 0 or between segments 5.
  • the joining means between layers of the longitudinal profile are formed by adhesive material.
  • a second preferred embodiment of the invention is presented in this specification, in which the reinforcement 1 for cardboard packaging 2 differs from that proposed in the first preferred embodiment of the invention in the distribution of layers existing between the first one and the other. and the second layer 2, in the cross section of the profile.
  • the cross section comprises in each of the segments 5 of the profile, three additional layers 11 formed by a cardboard sheet whose width is equal to the width of each segment 5 and where both segments 5 have the same number of additional layers 1 1.
  • the cross section further comprises an intermediate layer 12.4 located asymmetrically with respect to the center line of said section. In particular, this intermediate layer 12.4 is disposed proximate to the first layer 1 of the section.
  • the reinforcement 1 of this second preferred embodiment of the invention is capable of bending towards one of the sides, in particular towards the side opposite to that in which the intermediate layers are arranged, which in this case is a single intermediate layer 12.4.
  • the segments 5 are shown in the position of maximum angle, of 180 °.
  • the thickness of the segments 5 of the profile has a value of 0.3 cm, while the width of the central zone is 0.5 cm, less than 0.6 cm. corresponds to twice the thickness of the segments 5.
  • the longitudinal profile is capable of forming a minimum angle between said segments 5, of 90 °, as shown in Figure 7.2.
  • packaging 2 of cardboard with reinforcement 1 for packaging the reinforcement 1 being as defined in the first preferred embodiment of the invention proposed in this specification and where the cardboard packaging 2 is formed by a flat cardboard sheet with folding lines 3, such as that shown in Figure 5.1, for subsequent assembly by bending by said folding lines 3.
  • the reinforcement 1 formed by each longitudinal profile as defined in the first embodiment is suitable to be placed in two parallel folding lines 3 of the packaging 2.
  • Each bending line 3 of this packaging 2 has its start on a side 13.1 of the flat cardboard sheet and the end thereof on the opposite side 13.2 of said sheet.
  • each of these folding lines 3 comprises at least two vertical edges 14 of connection between the sides of the package 2 and a horizontal edge 15 of the base of the package 2 .
  • the cardboard sheet forming the packaging 2 is made of corrugated cardboard, formed by a sheet of corrugated cardboard, comprising two outer layers of coating 16 and two layers of corrugation 9 therebetween.
  • the longitudinal profile of the reinforcement in each of the folding lines 3 is integrated inside the cardboard sheet, on one of said corrugation layers 9 thereof, although for clarity , Figures 5.1 to 5.6 show the longitudinal profiles on the cardboard sheet.
  • the process of placing the reinforcements is done mechanically, placing the profiles, previously made, between the two outer layers 16 of the sheet of corrugated cardboard during the processing thereof. In this way there is a finish of the packaging 2 much more aesthetic and with visual continuity.
  • This process presents a first phase of laying a first sheet of cardboard. Once said first sheet is placed, a second phase takes place consisting of the folding of the side bands 10 of said first cardboard sheet, to form the second layer 8 of the longitudinal profile on the intermediate zone 4 of said sheet, which forms the first layer 7 of said profile.
  • the third and last phase is formed by the connection by means of the joining means, which in this first preferred embodiment of the invention are formed by an adhesive material, of said layers forming the profile.
  • the process further comprises an intermediate phase between the first and the second phase.
  • This intermediate phase consists of the placement of the four pairs of additional layers 11 on the first layer 7, where each of the additional layers 1 1 of each pair is disposed respectively on one of the segments 5 of the longitudinal profile.
  • said intermediate phase further comprises placing the three intermediate layers 12.1, 12.2, 12.3, in a certain position with respect to the additional layers and the cross section of the profile.
  • these intermediate layers are located one of them on the middle line of the cross section of the profile and the other two, symmetrically with respect to it.
  • the reinforcement thus obtained, has a central area that acts as a hinge and allows the segments that make up the profile of the reinforcement, can vary the angle between them.
  • the reinforcement can present some or other characteristics, such as bending towards a single side or both, or vary the minimum angle between segments that can be reached.
  • This type of packaging installation with reinforcement takes into consideration the reinforcement of the corners of the packaging, and also the reinforcement of the area in which said corner reinforcements support, which is also a zone of stress accumulation.
  • This is achieved by reinforcements formed by continuous longitudinal profiles that are placed in a folding line that integrates two vertical sides, from one side of the packaging to the other side.
  • the process of carrying out the reinforcement is a simple procedure, which only consists in the possible placement of additional and intermediate layers between a first and a second layer and the gluing thereof, forming at the same time the central area that acts of hinge and contributes to the reinforcement the remarkable advantages that already have been mentioned.

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  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

The invention relates to a reinforcement (1) for cardboard packaging (2) supplied flat, said reinforcement comprising a longitudinal profile including two segments (5) and a central connecting zone (6) which can be bent to form an angle of between 180º and 0º between the segments. The longitudinal profile includes a first layer (1) and a second layer (2) which are stacked on top of one another, and connecting means. The invention also relates to a reinforcement-equipped packaging system, which reinforcement (1) can be positioned at least along two parallel fold lines (3) of the packaging (2), each fold line (3) comprising at least two vertical edges (14) and one horizontal edge (15). The invention further relates to the reinforcement (1) production method comprising: positioning a first sheet, bending the bands (10) that form the second layer (8) of the profile onto the intermediate zone (4) that forms the first layer (7), and joining same using connecting means.

Description

DESCRIPCIÓN  DESCRIPTION

Refuerzo para empaques de cartón, instalación de empaque de cartón con refuerzo y proceso de elaboración de dicho refuerzo Reinforcement for cardboard packaging, installation of carton packaging with reinforcement and process of making said reinforcement

Campo técnico de la invención TECHNICAL FIELD OF THE INVENTION

La presente invención corresponde al campo técnico de los refuerzos para empaques de cartón, tales como cajas, bandejas, o similares, que se suministran en forma plana, para su posterior montaje mediante plegado por sus líneas de doblado. The present invention corresponds to the technical field of reinforcements for cardboard packaging, such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding their folding lines.

Antecedentes de la Invención Background of the Invention

En la actualidad existe una gran utilización de empaques de cartón, tanto para transportar productos, como para almacenarlos o incluso como modo de exhibición de los mismos. At present there is a great use of cardboard packaging, both to transport products, to store them or even as a way to display them.

Estos empaques de cartón, pueden estar realizados mediante cartón simple o mediante cartón corrugado, para dar forma a cajas, bandejas u otros modos de empaque. En un principio, la elaboración de estos empaques se realizaba con cartón simple pero, la necesidad de obtener una mayor capacidad de carga derivó en la utilización de otro tipo de cartones, como el cartón corrugado formado por al menos una capa de cartón interna que forma una serie de ondulaciones o flautas y que está comprendida entre dos capas exteriores de cartón o papel. These cardboard packaging can be made by simple cardboard or by corrugated cardboard, to shape boxes, trays or other packaging modes. Initially, the preparation of these packaging was made with simple cardboard, but the need to obtain a higher load capacity resulted in the use of other types of cardboard, such as corrugated cardboard formed by at least one layer of internal cardboard that forms a series of corrugations or flutes and which is comprised between two outer layers of cardboard or paper.

Los empaques de cartón corrugado pueden utilizar cartón corrugado de una, dos o más capas de corrugado interior. Corrugated cardboard packaging can use corrugated cardboard of one, two or more layers of inner corrugation.

Así pues, según se ha ido necesitando una mayor capacidad de carga, se ha realizado empaques con uno u otro tipo de cartón, variando ciertos factores, como el espesor de laminación del cartón que lo forma o, en el caso de cartón corrugado, el tipo de corrugado, con más o menos densidad de flautas, es decir, de las ondas del corrugado, el número de capas corrugadas... , con lo que se obtiene una mayor capacidad de carga. No obstante, cuando los productos que contienen estos empaques son productos pesados, y además, como suele ocurrir, estos empaques se apilan unos encima de otros, sobretodo las zonas de las esquinas de los mismos están sometidas a unas cargas elevadas que pueden acabar por no soportar y terminan cediendo. El uso de cartón corrugado, aunque aumenta la capacidad de carga respecto a un cartón simple, ante productos pesados, no soluciona el problema de la falta de resistencia en las esquinas, dado que la opción de ir aumentando el espesor del cartón para hacer los empaques más resistentes deja de ser rentable a partir de un cierto espesor, por lo que el empaque con cartón corrugado igualmente colapsaría. Por tanto, la utilización de cartón corrugado no es suficiente y es necesaria la aplicación de algún tipo de refuerzo en estas zonas conflictivas que son las esquinas. Therefore, as it has been needed a greater capacity of load, has made packaging with one or another type of cardboard, varying certain factors, such as the thickness of lamination of the cardboard that forms it or, in the case of corrugated cardboard, the type of corrugated, with more or less density of flutes, that is to say, of corrugated waves, the number of corrugated layers ..., with which a greater capacity of load is obtained. However, when the products containing these packages are heavy products, and also, as is often the case, these packages are stacked on top of each other, especially the corner areas of the same are subjected to high loads that may end up not supporting and end up yielding. The use of corrugated cardboard, although it increases the load capacity compared to a simple cardboard, before heavy products, does not solve the problem of the lack of resistance in the corners, given that the option of increasing the thickness of the cardboard to make the packaging more resistant it stops being profitable from a certain thickness, reason why the packaging with corrugated cardboard would also collapse. Therefore, the use of corrugated cardboard is not enough and the application of some type of reinforcement is necessary in these conflicting zones that are the corners.

Como modo de ejemplo del estado de la técnica, puede mencionarse los siguientes documentos de referencia US8317671 y US8443975, que tratan de resolver este problema de los empaques. El documento de referencia US8317671 se refiere a un método de fabricación de una pieza de cartón para formar una caja de cartón que tiene una pared superior, una pared inferior, y dos paredes laterales. Este método comprende una primera etapa consistente en hacer avanzar una banda de cartón no corrugado a lo largo de una trayectoria, esta banda de cartón no corrugado es la que al plegarse por las líneas de plegado va a conformar una caja de empaque. As an example of the state of the art, the following reference documents US8317671 and US8443975, which attempt to solve this packaging problem, can be mentioned. Reference document US8317671 relates to a method of manufacturing a piece of cardboard to form a cardboard box having an upper wall, a lower wall, and two side walls. This method comprises a first step consisting of advancing a band of non-corrugated cardboard along a path, this band of uncorrugated cardboard is the one that when folded by the folding lines will shape a packing box.

La segunda etapa consiste en laminar al menos una primera cinta y una segunda cinta de material de refuerzo para la primera superficie de la banda de avance del cartón no corrugado. La primera y la segunda cintas tienen una anchura menor que la anchura de la banda de cartón no corrugado. The second stage consists in laminating at least one first belt and a second belt of reinforcing material for the first surface of the advance web of the non-corrugated cardboard. The first and second ribbons have a width less than the width of the non-corrugated cardboard web.

La primera cinta se posiciona y adhiere, sustancialmente en todo pero no más allá de una primera porción de panel extendida longitudinalmente de la banda de cartón no corrugado, y la segunda cinta está posicionada sobre, y adherida, sustancialmente en todo, pero no más allá, de una segunda porción de panel extendida longitudinalmente de la banda. La primera cinta y la segunda cinta no se extienden a través de las líneas de plegado longitudinales. The first tape is positioned and adheres, substantially in all but not beyond a first longitudinally extended panel portion of the non-corrugated cardboard web, and the second tape is positioned on, and adhered to, substantially all but not further , of a second panel portion longitudinally extended from the band. The first tape and the second tape do not extend through the longitudinal fold lines.

La tercera etapa consiste en cortar la banda de cartón no corrugado y la primera y segunda cintas laminadas a través de su longitud en una caja de cartón que tiene paneles correspondientes a la pared superior, la pared inferior, y las dos paredes laterales de la caja de cartón, por lo que la primera cinta y la segunda cinta están situadas en el interior de la caja de cartón cuando la pieza de cartón se pliega para formar la misma, reforzándola. The third stage consists of cutting the non-corrugated cardboard strip and the first and second laminated tapes through its length into a cardboard box having panels corresponding to the upper wall, the lower wall, and the two side walls of the box of cardboard, whereby the first tape and the second tape are located inside the cardboard box when the piece of cardboard is folded to form the same, reinforcing it.

En este caso, la invención consiste en la ejecución de una caja de cartón y sus refuerzos en un solo proceso. Esto complica su fabricación y la vuelve costosa, ya que requiere de una máquina especial para poder llevar a cabo el proceso. In this case, the invention consists in the execution of a cardboard box and its reinforcements in a single process. This complicates its manufacture and makes it expensive, since it requires a special machine to carry out the process.

En este caso además, los refuerzos están formados por láminas iguales pegadas una encima de otra sin ninguna secuencia u orden, lo que genera que a partir de un determinado espesor la lámina así generada ya no podría doblarse. Esto supone la existencia de una limitación en el espesor del refuerzo. In this case also, the reinforcements are formed by equal sheets stuck on top of each other without any sequence or order, which generates that from a certain thickness the sheet thus generated could no longer bend. This supposes the existence of a limitation in the thickness of the reinforcement.

Esta invención se centra en el cartón simple, no corrugado, por lo que está excluyéndose la opción de refuerzo de empaques realizados mediante cartón corrugado, siendo éste uno de los más utilizados en la actualidad. This invention focuses on simple, non-corrugated cardboard, which is why the option of reinforcement of packaging made by corrugated cardboard is excluded, this being one of the most used today.

Otro inconveniente de esta caja de cartón así realizada es que los refuerzos se colocan en los cantos, utilizándolo para soporte vertical u horizontal, pero sin tener en cuenta el punto de apoyo de dicho refuerzo. Another drawback of this cardboard box thus made is that the reinforcements are placed on the edges, using it for vertical or horizontal support, but without taking into account the point of support of said reinforcement.

El documento de referencia US8443975 define un protector de borde, que comprende una primera sección formada a partir de un laminado de capas de papel o cartón. La primera sección está formada en una configuración en ángulo que define un primer y un segundo laterales, que definen un primer vértice entre los mismos. El primer vértice define una primera esquina interior y una segunda esquina exterior y, dichos primer y segundo laterales y el primer vértice definen una primera anchura. Reference document US8443975 defines an edge protector, comprising a first section formed from a laminate of paper or cardboard layers. The first section is formed in an angled configuration defining a first and a second side, which define a first vertex between them. The first vertex defines a first inner corner and a second outer corner and, said first and second sides and the first vertex define a first width.

El protector comprende una segunda sección formada a partir de un laminado de capas de papel o cartón que recubren un elemento central o núcleo. Este núcleo y el laminado están dispuestos en una configuración en ángulo similar al de la primera sección, definiendo un tercer y cuarto laterales que definen un segundo vértice entre los mismos. The protector comprises a second section formed from a laminate of paper or cardboard layers that cover a central element or core. This core and the laminate are arranged in an angled configuration similar to that of the first section, defining a third and fourth side defining a second vertex between them.

El segundo vértice define a su vez una tercera esquina interior y una cuarta esquina exterior y, el tercer y cuarto laterales y el segundo vértice definen una segunda anchura que es menor que la primera anchura y donde, las capas que recubren el elemento central o núcleo se envuelven alrededor de la cuarta esquina exterior y se extienden hacia dentro hacia la tercera esquina interior. La primera y la segunda secciones están adheridas entre sí con el primer y el tercer laterales unidos entre sí y el segundo y cuarto laterales también unidos entre sí. En este caso se propone un protector de borde que presenta forma de ángulo y está formado por una serie de capas superpuestas entre sí y constituidas en dos secciones, una con los laterales de mayor longitud que la otra y ambas adheridas por sus laterales respectivamente dos a dos. Este protector de borde se coloca en las esquinas de los empaques y viene a mejorar la resistencia de las mismas. The second vertex defines in turn a third interior corner and a fourth exterior corner and, the third and fourth lateral and the second vertex define a second width that is smaller than the first width and where, the layers that cover the central element or core they wrap around the fourth outer corner and extend inward towards the third inner corner. The first and second sections are adhered to each other with the first and third sides joined together and the second and fourth sides also joined together. In this case, an edge protector is proposed which has an angular shape and is formed by a series of layers superimposed on each other and constituted in two sections, one with the sides of greater length than the other and both adhered by their laterals respectively two two. This edge protector is placed in the corners of the packaging and comes to improve the resistance of the same.

No obstante, este tipo de protector aunque resulta eficaz en la protección de los bordes de empaques, presenta ciertos inconvenientes debido principalmente a su configuración en forma de ángulo recto, pues se define como un protector formado por dos secciones, ambas dispuestas en ángulo recto, pegadas una a la otra y preparadas para colocarse en las esquinas de un empaque. However, this type of protector, while effective in protecting the edges of packaging, presents certain drawbacks mainly due to its configuration in the form of a right angle, since it is defined as a protector formed by two sections, both arranged at right angles, glued one to the other and prepared to be placed in the corners of a package.

Así pues, es un dato significativo a tener en cuenta el hecho de que los empaques en la actualidad, suelen presentarse desmontados, en forma plana con unas líneas de doblez marcadas. De este modo, su transporte resulta más fácil y económico, al poder realizarlo en forma de paquetes planos hasta el punto de utilización y al igual ocurre con el almacenamiento de los empaques en el punto de destino. Una vez allí, en el momento en que se necesita utilizar uno de los empaques, se realiza su montaje, siguiendo las líneas de doblez, de forma rápida y sencilla. Thus, it is a significant fact to take into account the fact that the packaging currently, usually presented disassembled, in flat form with a fold lines marked. In this way, its transport is easier and more economical, since it can be carried out in the form of flat packages up to the point of use and the same happens with the storage of the packages at the point of destination. Once there, when you need to use one of the packaging, it is assembled, following the fold lines, quickly and easily.

Teniendo en cuenta esta realidad, el protector de borde planteado no facilita su colocación en los empaques desmontados, pues en caso de colocarse, el empaque debe montarse previamente y transportarse ya montado, ya que los protectores presentan forma de ángulo recto y por la propia constitución del mismo a base de láminas pegadas a lo largo de toda la anchura de las secciones que lo forman, esta disposición en ángulo recto resulta fija e invariable. Taking into account this reality, the raised edge protector does not facilitate its placement in the disassembled packaging, because if placed, the package must be previously assembled and transported already assembled, since the protectors have a right angle shape and by the very constitution of the same based on sheets pasted along the entire width of the sections that form it, this arrangement at right angles is fixed and invariable.

Tampoco posibilita que una vez montado el empaque éste pueda plegarse modificando en ángulo de sus bordes, lo que hace el uso de estos empaques más incómodo y con reducidas posibilidades en cuanto a variación de su forma a conveniencia. Esto conlleva un aumento del coste en transporte y en espacio de almacenado de los empaques suministrados con estos protectores y por tanto montados. Por tanto, aun siendo un protector que resuelve el refuerzo de las zonas de los bordes de los empaques, no resulta práctico ni eficaz en el caso de los empaques que se suministran en forma de lámina plana a montar en destino, que en la actualidad, son la inmensa mayoría, debido a la forma en ángulo recto inamovible de este protector. Así mismo, este protector de borde, aplicado en los bordes de los empaques, se apoyan en puntos de la base del empaque que no presentan ningún tipo de refuerzo, por lo que este apoyo de cada protector supone una concentración de esfuerzos en dichos puntos de la base por los que el empaque puede llegar a colapsar igualmente. Descripción de la invención Nor does it allow that once the package is assembled, it can be folded, modifying its edges at an angle, which makes the use of these packages more uncomfortable and with reduced possibilities in terms of variation of their shape at convenience. This entails an increase in the cost of transportation and storage space of the packages supplied with these protectors and therefore assembled. Therefore, even though it is a protector that solves the reinforcement of the areas of the edges of the packaging, it is not practical or effective in the case of the packages that are supplied in the form of a flat sheet to be assembled at the destination, which at present, they are the immense majority, due to the immovable right-angled shape of this protector. Likewise, this edge protector, applied at the edges of the packaging, rests on points of the base of the packaging that do not have any type of reinforcement, so that this support of each protector supposes a concentration of efforts in said points of the basis by which the package can even collapse. Description of the invention

El refuerzo para empaques de cartón, tales como cajas, bandejas, o similares, que se suministran en forma plana, para su posterior montaje mediante plegado por sus líneas de doblado que aquí se presenta, comprende un perfil longitudinal de refuerzo formado por dos segmentos longitudinales dispuestos en una misma horizontal formando un ángulo de 180° y una zona central de unión de los mismos, susceptible de doblado para formar un ángulo entre los segmentos comprendido entre 180° y 0°. The reinforcement for cardboard packaging, such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding by its folding lines that is presented here, comprises a longitudinal reinforcement profile formed by two longitudinal segments arranged in the same horizontal forming an angle of 180 ° and a central zone of union thereof, capable of bending to form an angle between the segments comprised between 180 ° and 0 °.

El perfil longitudinal presenta una estructura laminada formada por al menos una primera y una segunda capas superpuestas y, unos medios de unión entre capas. Dichas primera y segunda capas están formadas mediante una primera lámina de cartón cuyo ancho es mayor o igual que el doble del ancho del perfil longitudinal, siendo la primera capa la formada por una zona intermedia de dicha primera lámina, de ancho igual al ancho del perfil longitudinal, y la segunda capa la formada por sendas bandas laterales de la primera lámina a ambos lados de la zona intermedia y plegadas sobre la misma. The longitudinal profile has a laminated structure formed by at least one first and second superimposed layers, and means of joining between layers. Said first and second layers are formed by a first sheet of cardboard whose width is greater than or equal to twice the width of the longitudinal profile, the first layer being formed by an intermediate zone of said first sheet, of width equal to the width of the profile longitudinal, and the second layer formed by two lateral bands of the first sheet on both sides of the intermediate zone and folded on it.

Según una realización preferente, cada segmento del perfil longitudinal comprende al menos una capa adicional dispuesta entre la primera y la segunda capa, donde dicha al menos una capa adicional está formada por una lámina de cartón cuyo ancho es igual al ancho de dicho segmento del perfil, donde ambos segmentos presentan igual número de capas adicionales. De acuerdo con una realización preferida, el perfil longitudinal comprende además al menos una capa intermedia dispuesta entre la primera capa y la segunda capa, formada por una lámina de cartón de ancho igual al valor resultante de sumar el ancho de ambos segmentos del perfil y el de la zona central del mismo. According to a preferred embodiment, each segment of the longitudinal profile comprises at least one additional layer disposed between the first and the second layer, wherein said at least one additional layer is formed by a cardboard sheet whose width is equal to the width of said segment of the profile , where both segments have the same number of additional layers. According to a preferred embodiment, the longitudinal profile further comprises at least one intermediate layer arranged between the first layer and the second layer, formed by a cardboard sheet of width equal to the value resulting from adding the width of both segments of the profile and the from the central area of it.

En este caso y según una realización preferente, la al menos una capa intermedia del perfil longitudinal está situada sobre la línea central de la sección transversal del mismo. In this case and according to a preferred embodiment, the at least one intermediate layer of the longitudinal profile is located on the central line of the cross section thereof.

Tanto en dicho caso en que exista una capa intermedia sobre la línea central de la sección transversal del perfil longitudinal, como en el caso en que no, según una realización preferente, la sección transversal del perfil longitudinal comprende al menos dos capas intermedias, donde las capas intermedias están situadas de forma simétrica respecto a la línea central de dicha sección transversal. Así mismo, tanto en los casos en que exista una capa intermedia del perfil longitudinal situada sobre la línea central de la sección transversal del mismo, o capas intermedias dispuestas en dicha sección de forma simétrica o bien, capas intermedias dispuestas de forma simétrica además de en la línea central de la sección, de acuerdo con una realización preferida, el perfil longitudinal del refuerzo es susceptible de doblado hacia ambos lados. In both cases in which there is an intermediate layer on the center line of the cross section of the longitudinal profile, as in the case where not, according to a preferred embodiment, the cross section of the longitudinal profile comprises at least two intermediate layers, where the intermediate layers are located symmetrically with respect to the center line of said cross section. Likewise, both in cases where there is an intermediate layer of the longitudinal profile located on the center line of the cross section thereof, or intermediate layers arranged in said section symmetrically or intermediate layers arranged symmetrically in addition to the centerline of the section, according to a preferred embodiment, the longitudinal profile of the reinforcement is susceptible to bending towards both sides.

Según otra realización preferente, la sección transversal del perfil longitudinal comprende al menos una capa intermedia situada de forma asimétrica respecto a la línea central de dicha sección transversal, próxima a la primera o a la segunda capa de la sección y el perfil es susceptible de doblado hacia el lado contrario a aquel en el que están dispuestas las capas intermedias. According to another preferred embodiment, the cross section of the longitudinal profile comprises at least one intermediate layer located asymmetrically with respect to the center line of said cross section, close to the first or second layer of the section and the profile is susceptible to bending towards the opposite side to that in which the intermediate layers are arranged.

De acuerdo con otro aspecto, en una realización preferente, el ancho de la zona central de unión de ambos segmentos del perfil longitudinal tiene un valor mayor o igual que el valor del espesor del perfil en dichos segmentos y menor que el doble de dicho espesor y, el perfil longitudinal es susceptible de formar un ángulo mínimo entre los segmentos de 90°. According to another aspect, in a preferred embodiment, the width of the central joining area of both segments of the longitudinal profile has a value greater than or equal to the value of the thickness of the profile in said segments and less than twice that thickness and , the longitudinal profile is capable of forming a minimum angle between the 90 ° segments.

Según otra realización preferida, el ancho de la zona central de unión de ambos segmentos del perfil longitudinal tiene un valor mayor o igual que el doble del espesor de dichos segmentos y, es susceptible de formar un ángulo mínimo entre los segmentos de 0 °. En una realización preferente, los medios de unión entre capas del perfil longitudinal están formados por una cola o material adhesivo. According to another preferred embodiment, the width of the central joining zone of both segments of the longitudinal profile has a value greater than or equal to twice the thickness of said segments and, it is capable of forming a minimum angle between the segments of 0 °. In a preferred embodiment, the joining means between layers of the longitudinal profile are formed by a glue or adhesive material.

En esta memoria se presenta a su vez, una instalación de empaques de cartón con refuerzo para empaques, siendo el refuerzo como el definido en esta memoria y donde el empaque de cartón, está formado por una lámina de cartón en forma plana con líneas de doblado, para su posterior montaje mediante plegado por dichas líneas de doblado. In this report is presented in turn, an installation of cardboard packaging with reinforcement for packaging, the reinforcement being as defined in this specification and where the cardboard packaging, is formed by a sheet of cardboard in a flat with folding lines , for subsequent assembly by bending by said bending lines.

En esta instalación de empaques de cartón con refuerzo para empaque, el refuerzo formado por cada perfil longitudinal es apto para colocarse al menos en dos líneas de doblado paralelas del empaque, donde cada línea de doblado tiene su inicio en un lateral de la lámina de cartón plana y el final de la misma en el lateral opuesto de dicha lámina y donde, en una posición plegada del empaque, cada una de estas líneas de doblado comprende al menos dos aristas verticales de unión entre laterales y una arista horizontal de la base del empaque. In this installation of cardboard packaging with reinforcement for packaging, the reinforcement formed by each longitudinal profile is suitable to be placed on at least two parallel folding lines of the packaging, where each bending line has its beginning on one side of the cardboard sheet flat and the end thereof on the opposite side of said sheet and where, in a folded position of the package, each of these fold lines comprises at least two vertical edges of junction between sides and a horizontal edge of the base of the package .

Según una realización preferente de la invención, el empaque está formado por una lámina de cartón corrugado, que comprende dos capas externas de recubrimiento y al menos una capa de corrugación entre las mismas y, cada perfil longitudinal del refuerzo está integrado en el interior de dicha lámina, sobre al menos una de dichas capas de corrugación de la lámina de cartón. According to a preferred embodiment of the invention, the packaging is formed by a sheet of corrugated cardboard, comprising two outer layers of coating and at least one layer of corrugation between them and, each longitudinal profile of the reinforcement is integrated inside said sheet, on at least one of said corrugation layers of the cardboard sheet.

De acuerdo con otra realización preferida, sea la lámina de cartón del empaque del tipo que sea, cada perfil longitudinal del refuerzo está situado sobre dicha lámina de cartón del empaque. According to another preferred embodiment, whether the cardboard sheet of the packaging of whatever type, each longitudinal profile of the reinforcement is located on said cardboard sheet of the package.

La colocación de los refuerzos puede realizarse manualmente, mediante pegado de los mismos sobre las líneas de doblado, o bien de forma mecanizada en el caso de empaques de cartón corrugado, integrando la colocación de los refuerzos, previamente realizados, en el propio proceso de realización de la lámina de cartón corrugado. De este modo, se introduce el refuerzo entre las capas extremas de recubrimiento del cartón corrugado, durante la fabricación del mismo. The placement of reinforcements can be done manually, by sticking them on the lines of bending, or mechanized in the case of corrugated cardboard packaging, integrating the placement of reinforcements, previously made, in the process itself of the corrugated cardboard sheet. In this way, the reinforcement is introduced between the end layers of the corrugated board during the manufacture thereof.

Se propone a su vez, en esta memoria, un proceso de elaboración de refuerzo para empaques de cartón, según el refuerzo y la instalación de empaques con refuerzo definidas en esta memoria. Este proceso presenta las siguientes fases: It is proposed in turn, in this specification, a process of making reinforcement for cardboard packaging, according to the reinforcement and installation of reinforced packaging defined in this specification. This process has the following phases:

La primera fase consiste en la colocación de una primera lámina de cartón. A continuación, la segunda fase está formada por el doblado de las bandas laterales de la primera lámina de cartón, que forman la segunda capa del perfil longitudinal, sobre la zona intermedia de dicha lámina, que forma la primera capa de dicho perfil. The first phase consists in placing a first sheet of cardboard. Next, the second phase is formed by folding the side strips of the first cardboard sheet, which form the second layer of the longitudinal profile, on the intermediate zone of said sheet, which forms the first layer of said profile.

Por último, la tercera fase consiste en la unión mediante los medios de unión de las capas que forman el perfil. Finally, the third phase consists in the union by means of joining the layers forming the profile.

Según una realización preferente, el proceso comprende una fase intermedia, situada entre la primera y la segunda fase, en la que se colocan sobre la primera capa, al menos una pareja de capas adicionales, donde cada capa adicional se dispone sobre uno de los segmentos del perfil longitudinal. According to a preferred embodiment, the process comprises an intermediate phase, located between the first and the second phase, in which are placed on the first layer, at least one pair of additional layers, where each additional layer is arranged on one of the segments of the longitudinal profile.

En este caso y de acuerdo con una realización preferida, la fase intermedia comprende además la colocación de al menos una capa intermedia en una determinada posición respecto a las capas adicionales y a la sección transversal del perfil. In this case and according to a preferred embodiment, the intermediate phase further comprises placing at least one intermediate layer in a certain position with respect to the additional layers and the cross section of the profile.

Con el refuerzo para empaques de cartón, la instalación de empaque son refuerzo y el proceso de elaboración de refuerzo para empaques que aquí se propone se obtiene una mejora significativa del estado de la técnica. Esto es así pues se consigue un refuerzo formado por dos segmentos unidos mediante una zona central que realiza las funciones de bisagra, de manera que el refuerzo no presenta una posición fija de los segmentos y eso favorece la posible variación del ángulo entre los mismos y por tanto también del ángulo de las esquinas del empaque en el que se colocan. Esto se consigue combinando capas cuyo ancho es el de todo el perfil y con capas que únicamente se encuentran dispuestas en la zona de los segmentos y no en la zona central. De este modo, dicha zona central presenta un menor espesor que los segmentos y permite su doblado en función de las necesidades. Este refuerzo permite de este modo, variando la disposición de las capas adicionales e intermedias, obtener un refuerzo susceptible de doblado hacia ambos lados, cuando la distribución de las capas intermedias es simétrica o bien, permite su doblado únicamente hacia uno de los lados, cuando esta distribución es asimétrica, en cuyo caso el doblado se realiza hacia el lado contrario al que presenta mayor presencia de capas intermedias. Igualmente, en función del ancho de la zona central del refuerzo, que ejerce de bisagra, se permite el doblado del mismo entre 0 y 90° o bien entre 0 y 180°. Esto facilita la existencia de varias opciones de los refuerzos en función de las necesidades posteriores de los empaques y el destino de los mismos. De este modo, se aumenta las posibilidades de estos refuerzos y por tanto las de los empaques con los mismos, ya que los refuerzos pueden ser instalados en un empaque que viene presentado en forma de una lámina plana con líneas de doblado y posteriormente una vez llegado a su destino, permiten su doblado para el montaje del empaque. Igualmente permiten un doblado posterior a la utilización del empaque, para su almacenaje. With the reinforcement for cardboard packaging, the packaging installation is reinforcement and the reinforcement manufacturing process for packaging proposed here provides a significant improvement of the state of the art. This is so that a reinforcement is obtained formed by two segments joined by a central zone that performs the functions of hinge, so that the reinforcement does not have a fixed position of the segments and that favors the possible variation of the angle between them and by so much also of the angle of the corners of the packaging in which they are placed. This is achieved by combining layers whose width is that of the entire profile and with layers that are only arranged in the area of the segments and not in the central area. In this way, said central area has a smaller thickness than the segments and allows its folding according to the needs. This reinforcement thus allows, by varying the arrangement of the additional and intermediate layers, obtain a reinforcement capable of bending both sides, when the The distribution of the intermediate layers is symmetrical or, it allows it to bend only towards one of the sides, when this distribution is asymmetric, in which case the bending is done towards the opposite side to the one with the greatest presence of intermediate layers. Also, depending on the width of the central area of the reinforcement, which acts as a hinge, bending is allowed between 0 and 90 ° or between 0 and 180 °. This facilitates the existence of several options of the reinforcements depending on the subsequent needs of the packaging and the destination of the same. In this way, the possibilities of these reinforcements are increased and therefore those of the packaging with them, since the reinforcements can be installed in a package that is presented in the form of a flat sheet with folding lines and subsequently once arrived at their destination, they allow their folding for the assembly of the packaging. They also allow a folded subsequent to the use of the packaging, for storage.

Esto facilita enormemente la logística de los empaques, permitiendo mejorar la resistencia de los mismos en las zonas más sometidas a esfuerzos, como son los bordes o esquinas, sin que ello suponga inconvenientes o aumento de costes en el transporte o almacenaje posteriores y manteniendo los espesores del empaque en valores económicos y asumibles. This greatly facilitates the logistics of the packaging, allowing to improve the resistance of the same in areas most subject to stress, such as edges or corners, without this entailing inconveniences or increased costs in the subsequent transport or storage and maintaining the thicknesses of packaging in economic and assumable values.

Resultan por tanto unos refuerzos para empaques muy eficaces y versátiles, que al tiempo que aumentan la resistencia de los mismos, mantienen sus costes de transporte y almacenaje y presentan una manejabilidad de los refuerzos para de este modo poder variar el doblado de los empaques según interese. They are therefore reinforcements for packaging very effective and versatile, which while increasing the resistance of the same, maintain their costs of transport and storage and have a manageability of the reinforcements to thus be able to vary the folding of the packaging according to interest .

Por otra parte, la instalación de empaques con refuerzos de este tipo permite su disposición en empaques de cartón de cualquier tipo, tanto corrugado como cartón simple. On the other hand, the installation of packaging with reinforcements of this type allows its disposal in cardboard packaging of any type, both corrugated and simple cardboard.

En cualquiera de estos tipos el refuerzo puede colocarse sobre la superficie de la lámina de cartón y, en el caso de cartón corrugado además, existe la opción de ubicar los refuerzos en el interior de la lámina, sobre al menos una de las capas de corrugación y entre las dos capas externas de recubrimiento. In any of these types the reinforcement can be placed on the surface of the cardboard sheet and, in the case of corrugated cardboard in addition, there is the option of locating the reinforcements inside the sheet, on at least one of the layers of corrugation and between the two outer layers of coating.

De este modo, el empaque presenta una continuidad visual que resulta mucho más estética que en el caso de que el refuerzo se disponga en el exterior. Breve descripción de los dibujos In this way, the packaging presents a visual continuity that is much more aesthetic than in the case that the reinforcement is arranged on the outside. BRIEF DESCRIPTION OF THE DRAWINGS

Con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se aporta como parte integrante de dicha descripción, una serie de dibujos donde, con carácter ilustrativo y no limitativo, se ha representado lo siguiente: In order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, a series of drawings is provided as an integral part of said description where, in an illustrative and non-limiting manner, it has been represented the following:

Las Figuras 1.1 y 1.2.- Muestra sendos esquemas de la sección transversal, con la segunda capa abierta y cerrada respectivamente, de un refuerzo para empaques de cartón, para un primer modo de realización preferente de la invención. Figures 1.1 and 1.2.- Shows two diagrams of the cross section, with the second layer open and closed respectively, of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.

La Figura 2.- Muestra una vista en planta de un refuerzo para empaques de cartón, para un primer modo de realización preferente de la invención. Las Figuras 3.1 y 3.2.- Muestran los segmentos de un refuerzo en las posiciones de ángulo máximo y mínimo entre los mismos respectivamente de un refuerzo para empaques de cartón, para un primer modo de realización preferente de la invención. Figure 2 shows a plan view of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention. Figures 3.1 and 3.2.- They show the segments of a reinforcement in the positions of maximum and minimum angle between them respectively of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.

La Figura 4.- Muestra una vista en perfil de un refuerzo para empaques de cartón, para un primer modo de realización preferente de la invención. Figure 4 shows a profile view of a reinforcement for cardboard packaging, for a first preferred embodiment of the invention.

Las Figuras 5.1 a 5.6.- Muestran respectivamente unas vistas en perspectiva de una lámina de cartón para empaque con refuerzo para empaques de cartón en distintas posiciones de montaje del empaque, para un primer modo de realización preferente de la invención. Figures 5.1 to 5.6.- They respectively show perspective views of a cardboard sheet for packaging with reinforcement for cardboard packaging in different packaging assembly positions, for a first preferred embodiment of the invention.

La Figura 6.- Muestra un esquema de la sección transversal de un refuerzo para empaques de cartón, para un segundo modo de realización preferente de la invención. Figure 6 shows a diagram of the cross section of a reinforcement for cardboard packaging, for a second preferred embodiment of the invention.

Las Figuras 7.1 y 7.2.- Muestran los segmentos de un refuerzo en las posiciones de ángulo mínimo y máximo entre los mismos respectivamente de un refuerzo para empaques de cartón, para un segundo modo de realización preferente de la invención. Figures 7.1 and 7.2.- They show the segments of a reinforcement in the positions of minimum and maximum angle between them respectively of a reinforcement for cardboard packaging, for a second preferred embodiment of the invention.

Descripción detallada de un modo de realización preferente de la invención A la vista de las figuras aportadas, puede observarse cómo en un primer modo de realización preferente de la invención, el refuerzo 1 para empaques 2 de cartón, tales como cajas, bandejas, o similares, que se suministran en forma plana, para su posterior montaje mediante plegado por sus líneas de doblado 3 que aquí se propone, comprende un perfil longitudinal de refuerzo formado por dos segmentos 5 longitudinales dispuestos en una misma horizontal formando un ángulo de 180° y una zona central 6 de unión de los mismos, susceptible de doblado para formar un ángulo entre los segmentos comprendido entre 180° y 0° DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION In view of the figures provided, it can be seen how, in a first preferred embodiment of the invention, the reinforcement 1 for cardboard packaging 2, such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding their fold lines 3 proposed here, comprises a longitudinal profile of reinforcement formed by two longitudinal segments 5 arranged in the same horizontal forming a angle of 180 ° and a central zone 6 of union thereof, capable of bending to form an angle between the segments comprised between 180 ° and 0 °

Como se muestra en las Figuras 1.1 y 1.2, el perfil longitudinal presenta una estructura laminada formada por una primera 7 y una segunda capas 8 superpuestas y, unos medios de unión entre capas. Dichas primera 7 y segunda capas 8 están formadas mediante una primera lámina de cartón cuyo ancho es mayor que el doble del ancho del perfil longitudinal, siendo la primera capa 1 la formada por una zona intermedia 4 de dicha primera lámina, de ancho igual al ancho del perfil longitudinal, y la segunda capa 2 la formada por sendas bandas 10 laterales de la primera lámina a ambos lados de la zona intermedia 4 y plegadas sobre la misma. As shown in Figures 1.1 and 1.2, the longitudinal profile has a laminated structure formed by a first 7 and a second superimposed layers 8, and means of joining between layers. Said first 7 and second layers 8 are formed by a first sheet of cardboard whose width is greater than twice the width of the longitudinal profile, the first layer 1 being formed by an intermediate zone 4 of said first sheet, of width equal to the width of the longitudinal profile, and the second layer 2 formed by two lateral bands 10 of the first sheet on both sides of the intermediate zone 4 and folded thereon.

Como se muestra en dicha Figura 1 , en este primer modo de realización preferente de la invención, ambos segmentos 5 del perfil longitudinal comprenden cuatro capas adicionales 1 1 dispuestas entre la primera 1 y la segunda capa 2, cumpliéndose de este modo que ambos segmentos 5 presentan un mismo número de capas adicionales 1 1. Estas capas adicionales 1 1 están formadas cada una de ellas, por una lámina de cartón cuyo ancho es igual al ancho de dicho segmento 5 del perfil. As shown in said Figure 1, in this first preferred embodiment of the invention, both segments 5 of the longitudinal profile comprise four additional layers 1 1 disposed between the first 1 and the second layer 2, thus fulfilling that both segments 5 they present the same number of additional layers 1 1. These additional layers 1 1 are each formed by a cardboard sheet whose width is equal to the width of said segment 5 of the profile.

En este primer modo de realización preferente de la invención, como puede observarse en la misma Figura 1 , el perfil longitudinal comprende además tres capas intermedias 12.1 , 12.2, 12.3, dispuestas entre la primera capa 1 y la segunda capa 2. Las capas intermedias 12.1 , 12.2, 12.3, están formadas cada una de ellas por una lámina de cartón de ancho igual al valor resultante de sumar el ancho de ambos segmentos 5 del perfil y el de la zona central 6 del mismo. In this first preferred embodiment of the invention, as can be seen in the same Figure 1, the longitudinal profile further comprises three intermediate layers 12.1, 12.2, 12.3, arranged between the first layer 1 and the second layer 2. The intermediate layers 12.1 , 12.2, 12.3, each one of them is formed by a cardboard sheet of width equal to the value resulting from adding the width of both segments 5 of the profile and that of the central zone 6 thereof.

La disposición de las mismas en la sección transversal del perfil, en este primer modo de realización preferente de la invención, consiste en una capa intermedia 12.2 situada sobre la línea central de la sección transversal del perfil y las otras dos capas intermedias 12.1 , 12.3, situadas de forma simétrica respecto a dicha línea central. Así pues, en este primer modo de realización preferente de la invención y con una sección transversal como la definida, el perfil es susceptible de doblado hacia ambos lados. The arrangement of the same in the cross section of the profile, in this first preferred embodiment of the invention, consists of an intermediate layer 12.2 located on the center line of the cross section of the profile and the other two intermediate layers 12.1, 12.3, located symmetrically with respect to said central line. Thus, in this first preferred embodiment of the invention and with a cross section as defined, the profile is susceptible to bending to both sides.

En este primer modo de realización preferente de la invención, como se muestra en las Figuras 2 y 3.1 , en la que el perfil se dispone con ambos segmentos 5 formando un ángulo de 180°, el ancho de la zona central 6 de unión de ambos segmentos 5 del perfil longitudinal tiene un valor mayor que el doble del espesor de dichos segmentos. Así pues, en este primer modo de realización, el espesor de los segmentos 5 presenta un valor de 0'3 cm, mientras que el ancho de la zona central 6 es de 1 cm, mayor que 0'6 cm que corresponde al doble del espesor de los segmentos 5. In this first preferred embodiment of the invention, as shown in Figures 2 and 3.1, in which the profile is arranged with both segments 5 forming an angle of 180 °, the width of the central zone 6 of union of both segments 5 of the longitudinal profile have a value greater than twice the thickness of said segments. Thus, in this first embodiment, the thickness of the segments 5 has a value of 0.3 cm, while the width of the central zone 6 is 1 cm, greater than 0.6 cm which corresponds to twice the width of the central area 6. thickness of the segments 5.

Con estas condiciones, y como se muestra en la Figura 3.2, el perfil puede formar un ángulo mínimo de 0o entre los segmentos 5. En este primer modo de realización preferente de la invención, los medios de unión entre capas del perfil longitudinal están formados por material adhesivo. With these conditions, and as shown in Figure 3.2, the profile can form a minimum angle of 0 or between segments 5. In this first preferred embodiment of the invention, the joining means between layers of the longitudinal profile are formed by adhesive material.

Se presenta en esta memoria un segundo modo de realización preferente de la invención, en el que el refuerzo 1 para empaques 2 de cartón se diferencia del propuesto en el primer modo de realización preferente de la invención en la distribución de capas existente entre la primera 1 y la segunda capas 2, en la sección transversal del perfil. A second preferred embodiment of the invention is presented in this specification, in which the reinforcement 1 for cardboard packaging 2 differs from that proposed in the first preferred embodiment of the invention in the distribution of layers existing between the first one and the other. and the second layer 2, in the cross section of the profile.

Así pues, como se muestra en la Figura 6, en este segundo modo de realización la sección transversal comprende en cada uno de los segmentos 5 del perfil, tres capas adicionales 11 formadas por una lámina de cartón cuyo ancho es igual al ancho de cada segmento 5 y donde ambos segmentos 5 presentan igual número de capas adicionales 1 1. La sección transversal comprende además una capa intermedia 12.4 situada de forma asimétrica respecto a la línea central de dicha sección. En concreto, esta capa intermedia 12.4 se encuentra dispuesta próxima a la primera capa 1 de la sección. Thus, as shown in Figure 6, in this second embodiment the cross section comprises in each of the segments 5 of the profile, three additional layers 11 formed by a cardboard sheet whose width is equal to the width of each segment 5 and where both segments 5 have the same number of additional layers 1 1. The cross section further comprises an intermediate layer 12.4 located asymmetrically with respect to the center line of said section. In particular, this intermediate layer 12.4 is disposed proximate to the first layer 1 of the section.

Así pues, con esta determinada sección transversal, el refuerzo 1 de este segundo modo de realización preferente de la invención, es susceptible de doblado hacia uno de los lados, en concreto hacia el lado contrario a aquel en el que están dispuestas las capas intermedias, que en este caso es una única capa intermedia 12.4. En la Figura 7.1 se muestra los segmentos 5 en la posición de ángulo máximo, de 180°. En este segundo modo de realización preferente de la invención, el espesor de los segmentos 5 del perfil presenta un valor de 0'3 cm, mientras que el ancho de la zona central es de 0'5 cm, menor que 0'6 cm que corresponde al doble del espesor de los segmentos 5. Con estas condiciones, el perfil longitudinal es susceptible de formar un ángulo mínimo entre dichos segmentos 5, de 90°, tal y como se muestra en la Figura 7.2. Thus, with this particular cross section, the reinforcement 1 of this second preferred embodiment of the invention is capable of bending towards one of the sides, in particular towards the side opposite to that in which the intermediate layers are arranged, which in this case is a single intermediate layer 12.4. In Figure 7.1 the segments 5 are shown in the position of maximum angle, of 180 °. In this second preferred embodiment of the invention, the thickness of the segments 5 of the profile has a value of 0.3 cm, while the width of the central zone is 0.5 cm, less than 0.6 cm. corresponds to twice the thickness of the segments 5. Under these conditions, the longitudinal profile is capable of forming a minimum angle between said segments 5, of 90 °, as shown in Figure 7.2.

En esta memoria se propone además una instalación de empaques 2 de cartón con refuerzo 1 para empaques, siendo el refuerzo 1 como el definido en el primer modo de realización preferente de la invención planteado en esta memoria y donde el empaque 2 de cartón, está formado por una lámina de cartón en forma plana con líneas de doblado 3, como la que se muestra en la Figura 5.1 , para su posterior montaje mediante plegado por dichas líneas de doblado 3. Como se muestra en dicha Figura 5.1 , en este primer modo de realización preferente de la invención, el refuerzo 1 formado por cada perfil longitudinal como el definido en el primer modo de realización, es apto para colocarse en dos líneas de doblado 3 paralelas del empaque 2. Cada línea de doblado 3 de este empaque 2 tiene su inicio en un lateral 13.1 de la lámina de cartón plana y el final de la misma en el lateral opuesto 13.2 de dicha lámina. In this specification, it is also proposed to install packaging 2 of cardboard with reinforcement 1 for packaging, the reinforcement 1 being as defined in the first preferred embodiment of the invention proposed in this specification and where the cardboard packaging 2 is formed by a flat cardboard sheet with folding lines 3, such as that shown in Figure 5.1, for subsequent assembly by bending by said folding lines 3. As shown in said Figure 5.1, in this first mode of preferred embodiment of the invention, the reinforcement 1 formed by each longitudinal profile as defined in the first embodiment, is suitable to be placed in two parallel folding lines 3 of the packaging 2. Each bending line 3 of this packaging 2 has its start on a side 13.1 of the flat cardboard sheet and the end thereof on the opposite side 13.2 of said sheet.

Una vez colocados los refuerzos 1 , el empaque 2 empieza a plegarse por las líneas de doblado 3 del mismo, tal y como se muestra en las Figuras 5.2 a 5.6. Puede observarse así mismo en estas figuras que, en una posición plegada del empaque 2, cada una de estas líneas de doblado 3 comprende al menos dos aristas verticales 14 de unión entre laterales del empaque 2 y una arista horizontal 15 de la base del empaque 2. Once the reinforcements 1 are placed, the package 2 begins to fold by the folding lines 3 thereof, as shown in Figures 5.2 to 5.6. It can also be observed in these figures that, in a folded position of the package 2, each of these folding lines 3 comprises at least two vertical edges 14 of connection between the sides of the package 2 and a horizontal edge 15 of the base of the package 2 .

De este modo, además de estar reforzándose la zona de las esquinas del empaque 2, estos refuerzos 1 apoyan al mismo tiempo sobre una zona de la base que también se ve reforzada, de manera que estas zonas en la que confluyen las fuerzas que soportan los refuerzos 1 de las esquinas, sí son capaces de soportar dichos esfuerzos transmitidos por los refuerzos 1 , evitando el colapso del empaque tanto por las esquinas como por la base. En este primer modo de realización preferente de la invención, la lámina de cartón que forma el empaque 2 es de cartón corrugado, formada por una lámina de cartón corrugado, que comprende dos capas externas de recubrimiento 16 y dos capas de corrugación 9 entre las mismas. Como se muestra en la Figura 4, el perfil longitudinal del refuerzo en cada una de las líneas de doblado 3, está integrado en el interior de la lámina de cartón, sobre una de dichas capas de corrugación 9 de la misma, aunque para mayor claridad, en las Figuras 5.1 a 5.6 se ha representado los perfiles longitudinales sobre la lámina de cartón. In this way, in addition to reinforcing the area of the corners of the packaging 2, these reinforcements 1 support at the same time on a zone of the base that is also reinforced, so that these areas in which the forces that support the reinforcements 1 of the corners, yes they are able to support said efforts transmitted by the reinforcements 1, avoiding the collapse of the packaging both at the corners and the base. In this first preferred embodiment of the invention, the cardboard sheet forming the packaging 2 is made of corrugated cardboard, formed by a sheet of corrugated cardboard, comprising two outer layers of coating 16 and two layers of corrugation 9 therebetween. As shown in Figure 4, the longitudinal profile of the reinforcement in each of the folding lines 3, is integrated inside the cardboard sheet, on one of said corrugation layers 9 thereof, although for clarity , Figures 5.1 to 5.6 show the longitudinal profiles on the cardboard sheet.

En este primer modo de realización preferente de la invención, el proceso de colocación de los refuerzos se realiza mecánicamente, colocando los perfiles, previamente realizados, entre las dos capas externas de recubrimiento 16 de la lámina de cartón corrugado durante la elaboración de la misma. De este modo queda un acabado del empaque 2 mucho más estético y con continuidad visual. In this first preferred embodiment of the invention, the process of placing the reinforcements is done mechanically, placing the profiles, previously made, between the two outer layers 16 of the sheet of corrugated cardboard during the processing thereof. In this way there is a finish of the packaging 2 much more aesthetic and with visual continuity.

En esta memoria se propone además, un proceso de elaboración de refuerzo 1 para empaques 2 de cartón, según el refuerzo y la instalación de empaques con refuerzo definidas en el primer modo de realización preferente de la invención presentados en esta memoria. In this specification, a reinforcement process 1 for cardboard packaging 2 is also proposed, according to the reinforcement and the installation of reinforced packaging defined in the first preferred embodiment of the invention presented in this specification.

Este proceso presenta una primera fase de colocación de una primera lámina de cartón. Una vez colocada dicha primera lámina, tiene lugar una segunda fase consistente en el doblado de las bandas 10 laterales de dicha primera lámina de cartón, para formar la segunda capa 8 del perfil longitudinal sobre la zona intermedia 4 de dicha lámina, que forma la primera capa 7 de dicho perfil. La tercera y última fase está formada por la unión mediante los medios de unión, que en este primer modo de realización preferente de la invención están formados por un material adhesivo, de dichas capas que forman el perfil. This process presents a first phase of laying a first sheet of cardboard. Once said first sheet is placed, a second phase takes place consisting of the folding of the side bands 10 of said first cardboard sheet, to form the second layer 8 of the longitudinal profile on the intermediate zone 4 of said sheet, which forms the first layer 7 of said profile. The third and last phase is formed by the connection by means of the joining means, which in this first preferred embodiment of the invention are formed by an adhesive material, of said layers forming the profile.

En este primer modo de realización preferente de la invención, el proceso comprende además una fase intermedia entre la primera y la segunda fase. In this first preferred embodiment of the invention, the process further comprises an intermediate phase between the first and the second phase.

Esta fase intermedia consiste en la colocación de las cuatro parejas de capas adicionales 11 sobre la primera capa 7, donde cada una de las capas adicionales 1 1 de cada pareja se dispone respectivamente sobre uno de los segmentos 5 del perfil longitudinal. Así mismo, en este primer modo de realización preferente de la invención, dicha fase intermedia comprende además la colocación de las tres capas intermedias 12.1 , 12.2, 12.3, en una determinada posición respecto a las capas adicionales y a la sección transversal del perfil. En este primer modo de realización preferente de la invención, estas capas intermedias, como ya se ha descrito, están situadas una de ellas sobre la línea media de la sección transversal del perfil y las otras dos, de forma simétrica respecto a la misma. This intermediate phase consists of the placement of the four pairs of additional layers 11 on the first layer 7, where each of the additional layers 1 1 of each pair is disposed respectively on one of the segments 5 of the longitudinal profile. Likewise, in this first preferred embodiment of the invention, said intermediate phase further comprises placing the three intermediate layers 12.1, 12.2, 12.3, in a certain position with respect to the additional layers and the cross section of the profile. In this first preferred embodiment of the invention, these intermediate layers, as already described, are located one of them on the middle line of the cross section of the profile and the other two, symmetrically with respect to it.

La forma de realización descrita constituye únicamente un ejemplo de la presente invención, por tanto, los detalles, términos y frases específicos utilizados en la presente memoria no se han de considerar como limitativos, sino que han de entenderse únicamente como una base para las reivindicaciones y como una base representativa que proporcione una descripción comprensible así como la información suficiente al experto en la materia la información suficiente para aplicar la presente invención. Con el refuerzo para empaques de cartón, la instalación de empaque son refuerzo y el proceso de elaboración de refuerzo para empaques que aquí se presenta se consiguen importantes mejoras respecto al estado de la técnica. The described embodiment constitutes only an example of the present invention, therefore, the specific details, terms and phrases used herein are not to be considered as limiting, but are to be understood only as a basis for the claims and as a representative basis that provides an understandable description as well as sufficient information to the person skilled in the art with sufficient information to apply the present invention. With the reinforcement for cardboard packaging, the packaging installation is reinforcement and the packaging reinforcement manufacturing process presented here achieves important improvements with respect to the state of the art.

Así pues, el refuerzo así obtenido, presenta una zona central que actúa a modo de bisagra y permite que los segmentos que conforman el perfil del refuerzo, puedan variar el ángulo existente entre los mismos. Thus, the reinforcement thus obtained, has a central area that acts as a hinge and allows the segments that make up the profile of the reinforcement, can vary the angle between them.

Esto facilita la colocación de los refuerzos cuando el empaque está sin montar, en forma de lámina horizontal de cartón, ya que luego, al montar el empaque, plegándolo por las líneas de doblado del mismo, los refuerzos son susceptibles de permitir ese mismo doblado. This facilitates the placement of the reinforcements when the package is unmounted, in the form of a horizontal sheet of cardboard, since then, when assembling the package, folding it by the folding lines thereof, the reinforcements are capable of allowing that same bending.

Esto se consigue gracias a la distribución de capas en el interior del perfil del refuerzo, de manera que además presenta la ventaja de que en función de la distribución que se realice, el refuerzo pueda presentar unas u otras características, como puede ser doblar hacia un único lado o hacia los dos, o variar el ángulo mínimo entre segmentos que se puede alcanzar. This is achieved thanks to the distribution of layers inside the profile of the reinforcement, so that it also has the advantage that depending on the distribution that is made, the reinforcement can present some or other characteristics, such as bending towards a single side or both, or vary the minimum angle between segments that can be reached.

Con todo esto resulta un refuerzo muy versátil además de sencillo y muy eficaz para soportar los esfuerzos a los que se someten las esquinas de los empaques, siendo además la resistencia de estos refuerzos modulable según interese, pues dependiendo de los esfuerzos de carga que se prevean, se puede realizar un refuerzo con segmentos de mayor o menor espesor. De esta manera se puede aumentar de forma significativa la resistencia de los empaques, tanto como se precise, sin tener que aumentar el espesor de la lámina que forma dicho empaque, lo que supone un ahorro económico significativo. La instalación de empaque con este refuerzo resulta así mismo apta para cualquier tipo de cartón, no limitándose por tanto a ningún tipo en concreto. With all this is a very versatile reinforcement as well as simple and very effective to withstand the stresses to which the corners of the packings are subjected, being also the resistance of these reinforcements modulable according to interest, because depending on the loading efforts that are foreseen , a reinforcement can be made with segments of greater or smaller thickness. In this way, the strength of the packages can be significantly increased, as much as necessary, without having to increase the thickness of the sheet forming said packaging, which represents a significant economic saving. The packaging installation with this reinforcement is also suitable for any type of cardboard, therefore not limited to any particular type.

Este tipo de instalación de empaque con refuerzo tiene en consideración el refuerzo de las esquinas de los empaques, y además el refuerzo de la zona en la que apoyan dichos refuerzos de esquina, que también es una zona de acumulación de tensiones. Ello se consigue mediante refuerzos formados por perfiles longitudinales continuos que se colocan en una línea de doblado que integra dos laterales verticales, desde un lateral del empaque hasta el otro lateral. Por otra parte, el proceso de realización del refuerzo es un procedimiento sencillo, que únicamente consiste en la posible colocación de capas adicionales e intermedias entre una primera y una segunda capa y el pegado de las mismas, formando al mismo tiempo la zona central que actúa de bisagra y aporta al refuerzo las ventajas destacables que ya se han mencionado. This type of packaging installation with reinforcement takes into consideration the reinforcement of the corners of the packaging, and also the reinforcement of the area in which said corner reinforcements support, which is also a zone of stress accumulation. This is achieved by reinforcements formed by continuous longitudinal profiles that are placed in a folding line that integrates two vertical sides, from one side of the packaging to the other side. On the other hand, the process of carrying out the reinforcement is a simple procedure, which only consists in the possible placement of additional and intermediate layers between a first and a second layer and the gluing thereof, forming at the same time the central area that acts of hinge and contributes to the reinforcement the remarkable advantages that already have been mentioned.

Claims

REIVINDICACIONES Refuerzo (1) para empaques (2) de cartón, tales como cajas, bandejas, o similares, que se suministran en forma plana, para su posterior montaje mediante plegado por sus líneas de doblado (3), caracterizada por que comprende un perfil longitudinal de refuerzo formado por dos segmentos (5) longitudinales dispuestos en una misma horizontal formando un ángulo de 180° y una zona central (6) de unión de los mismos, susceptible de doblado para formar un ángulo entre los segmentos comprendido entre 180° y 0o, donde el perfil longitudinal presenta una estructura laminada formada por al menos una primera (1) y una segunda capas (2) superpuestas, donde dichas primeraReinforcement (1) for packaging (2) of cardboard, such as boxes, trays, or the like, which are supplied in a flat form, for subsequent assembly by folding by its folding lines (3), characterized in that it comprises a longitudinal profile of reinforcement formed by two longitudinal segments (5) arranged in the same horizontal forming an angle of 180 ° and a central zone (6) of union thereof, capable of bending to form an angle between the segments comprised between 180 ° and 0 or , where the longitudinal profile has a laminated structure formed by at least one first (1) and one second layer (2) superimposed, where said first (I) y segunda capas (2) están formadas mediante una primera lámina de cartón cuyo ancho es mayor o igual que el doble del ancho del perfil longitudinal, siendo la primera capa (1) la formada por una zona intermedia (4) de dicha primera lámina, de ancho igual al ancho del perfil longitudinal, y la segunda capa (2) la formada por sendas bandas (10) laterales de la primera lámina a ambos lados de la zona intermedia (4) y plegadas sobre la misma y, unos medios de unión entre capas. (I) and second layers (2) are formed by a first sheet of cardboard whose width is greater than or equal to twice the width of the longitudinal profile, the first layer (1) being formed by an intermediate zone (4) of said first sheet, width equal to the width of the longitudinal profile, and the second layer (2) formed by two lateral bands (10) of the first sheet on both sides of the intermediate zone (4) and folded on it and, some means of union between layers. Refuerzo (1) para empaques (2) de cartón, según la reivindicación 1 , caracterizada por que cada segmento (5) del perfil longitudinal comprende al menos una capa adicionalReinforcement (1) for cardboard packaging (2), according to claim 1, characterized in that each segment (5) of the longitudinal profile comprises at least one additional layer (I I) dispuesta entre la primera (1) y la segunda capa (2), donde dicha al menos una capa adicional (1 1) está formada por una lámina de cartón cuyo ancho es igual al ancho de dicho segmento (5) del perfil, donde ambos segmentos (5) presentan igual número de capas adicionales (1 1). (II) disposed between the first (1) and the second layer (2), wherein said at least one additional layer (11) is formed by a cardboard sheet whose width is equal to the width of said segment (5) of the profile , where both segments (5) have the same number of additional layers (1 1). Refuerzo (1) para empaques (2) de cartón, según la reivindicación 2, caracterizada por que el perfil longitudinal comprende además al menos una capa intermedia (12.1 , 12.2, 12.3) dispuesta entre la primera capa (1) y la segunda capa (2), formada por una lámina de cartón de ancho igual al valor resultante de sumar el ancho de ambos segmentos (5) del perfil y el de la zona central (6) del mismo. Reinforcement (1) for cardboard packaging (2), according to claim 2, characterized in that the longitudinal profile also comprises at least one intermediate layer (12.1, 12.2, 12.3) disposed between the first layer (1) and the second layer ( 2), formed by a sheet of cardboard of width equal to the value resulting from adding the width of both segments (5) of the profile and that of the central zone (6) thereof. Refuerzo (1) para empaques (2) de cartón, según la reivindicación 3, caracterizada por que la al menos una capa intermedia (12.2) del perfil longitudinal está situada sobre la línea central de la sección transversal del mismo. Reinforcement (1) for cardboard packaging (2), according to claim 3, characterized in that the at least one intermediate layer (12.2) of the longitudinal profile is located on the center line of the cross section thereof. Refuerzo (1) para empaques (2) de cartón, según cualquiera de las reivindicaciones 3 y 4, caracterizada por que la sección transversal del perfil longitudinal comprende al menos dos capas intermedias (12.1 , 12.3), donde las capas intermedias (12.1 , 12.3) están situadas de forma simétrica respecto a la línea central de dicha sección transversal. Reinforcement (1) for cardboard packaging (2) according to any of claims 3 and 4, characterized in that the cross section of the longitudinal profile comprises at least two intermediate layers (12.1, 12.3), where the intermediate layers (12.1, 12.3 ) they are located symmetrically with respect to the center line of said cross section. 6- Refuerzo (1) para empaques (2) de cartón, según cualquiera de las reivindicaciones 4 y 5, caracterizada por que el perfil longitudinal es susceptible de doblado hacia ambos lados. 6- Reinforcement (1) for cardboard packaging (2), according to any of claims 4 and 5, characterized in that the longitudinal profile is susceptible to bending to both sides. - Refuerzo (1) para empaques (2) de cartón, según cualquiera de las reivindicaciones 3 y 4, caracterizada por que la sección transversal del perfil longitudinal comprende al menos una capa intermedia (12.4) situada de forma asimétrica respecto a la línea central de dicha sección transversal, próxima a la primera (1) o a la segunda capa (2) de la sección y el perfil es susceptible de doblado hacia el lado contrario a aquel en el que están dispuestas las capas intermedias (12.4). 8- Refuerzo (1) para empaques (2) de cartón, según cualquiera de las reivindicaciones anteriores, caracterizada por que el ancho de la zona central (6) de unión de ambos segmentos (5) del perfil longitudinal tiene un valor mayor o igual que el valor del espesor del perfil en dichos segmentos (5) y menor que el doble de dicho espesor y, el perfil longitudinal es susceptible de formar un ángulo mínimo entre los segmentos de 90°.
Figure imgf000020_0001
Refuerzo (1) para empaques (2) de cartón, según cualquiera de las reivindicaciones 1 a - Reinforcement (1) for cardboard packaging (2), according to any of claims 3 and 4, characterized in that the cross section of the longitudinal profile comprises at least one intermediate layer (12.4) located asymmetrically with respect to the center line of said cross section, close to the first (1) or to the second layer (2) of the section and the profile is susceptible to bending towards the opposite side to that in which the intermediate layers (12.4) are arranged. 8- Reinforcement (1) for packaging (2) cardboard, according to any of the preceding claims, characterized in that the width of the central area (6) of union of both segments (5) of the longitudinal profile has a value greater than or equal that the value of the thickness of the profile in said segments (5) and less than twice said thickness and, the longitudinal profile is capable of forming a minimum angle between the segments of 90 °.
Figure imgf000020_0001
Reinforcement (1) for cardboard packaging (2) according to any of claims 1 to 7, caracterizada por que el ancho de la zona central (6) de unión de ambos segmentos (5) del perfil longitudinal tiene un valor mayor o igual que el doble del espesor de dichos segmentos (5) y, es susceptible de formar un ángulo mínimo entre los segmentos de 0o. 7, characterized in that the width of the central area (6) of union of both segments (5) of the longitudinal profile has a value greater than or equal to twice the thickness of said segments (5) and, is capable of forming an angle minimum between the segments of 0 or . 10- Refuerzo (1) para empaques (2) de cartón, según cualquiera de las reivindicaciones anteriores, caracterizada por que los medios de unión entre capas del perfil longitudinal están formados por una cola o material adhesivo. 10- Reinforcement (1) for cardboard packaging (2), according to any of the preceding claims, characterized in that the joining means between layers of the longitudinal profile are formed by a glue or adhesive material. 1- Instalación de empaque (2) de cartón con refuerzo (1), como el definido en las reivindicaciones 1 a 10, donde el empaque (2) está formado por una lámina de cartón en forma plana con líneas de doblado (3), para su posterior montaje mediante plegado por dichas líneas de doblado (3), caracterizado por que el refuerzo (1) formado por cada perfil longitudinal es apto para colocarse al menos en dos líneas de doblado (3) paralelas del empaque (2), donde cada línea de doblado (3) tiene su inicio en un lateral (13.1) de la lámina de cartón plana y el final de la misma en el lateral opuesto (13.2) de dicha lámina y donde, en una posición plegada del empaque (2), cada una de estas líneas de doblado (3) comprende al menos dos aristas verticales (14) de unión entre laterales y una arista horizontal (15) de la base del empaque. 1- Packaging installation (2) cardboard with reinforcement (1), as defined in claims 1 to 10, where the package (2) is formed by a sheet of cardboard in a flat with folding lines (3), for subsequent assembly by bending by said bending lines (3), characterized in that the reinforcement (1) formed by each longitudinal profile is apt to be placed at least in two parallel bending lines (3) of the package (2), where each fold line (3) has its beginning on one side (13.1) of the flat cardboard sheet and the end thereof on the opposite side (13.2) of said sheet and where, in a folded position of the package (2) , Each of these Bending lines (3) comprises at least two vertical edges (14) joining between sides and a horizontal edge (15) of the base of the packaging. 12- Instalación de empaque (2) de cartón con refuerzo (1), según la reivindicación 1 1 , caracterizado por que el empaque (2) está formado por una lámina de cartón corrugado, que comprende dos capas externas de recubrimiento (16) y al menos una capa de corrugación (9) entre las mismas y, cada perfil longitudinal del refuerzo (1) está integrado en el interior de dicha lámina, sobre al menos una de dichas capas de corrugación (9) de la lámina de cartón. 12- Packaging installation (2) cardboard with reinforcement (1), according to claim 1 1, characterized in that the package (2) is formed by a sheet of corrugated cardboard, comprising two outer layers of coating (16) and at least one corrugation layer (9) between them and, each longitudinal profile of the reinforcement (1) is integrated inside said sheet, on at least one of said corrugation layers (9) of the cardboard sheet. 13- Instalación de empaque (2) de cartón con refuerzo (1), según la reivindicación 1 1 , caracterizado por que cada perfil longitudinal del refuerzo (1) está situado sobre la lámina de cartón del empaque (2). 14- Proceso de elaboración de refuerzo (1) para empaques (2) de cartón, según lo definido en las reivindicaciones 1 a 13, caracterizado por que comprende las siguientes fases:13- Packaging installation (2) cardboard with reinforcement (1), according to claim 1 1, characterized in that each longitudinal profile of the reinforcement (1) is located on the cardboard sheet of the packaging (2). 14- Process for manufacturing reinforcement (1) for cardboard packaging (2), as defined in claims 1 to 13, characterized in that it comprises the following phases: - colocación de una primera lámina de cartón; - placement of a first sheet of cardboard; - doblado de las bandas (10) laterales de la primera lámina de cartón, que forman la segunda capa (8) del perfil longitudinal, sobre la zona intermedia (4) de dicha lámina, que forma la primera capa (7) de dicho perfil;  - folding of the side bands (10) of the first cardboard sheet, forming the second layer (8) of the longitudinal profile, on the intermediate zone (4) of said sheet, which forms the first layer (7) of said profile ; - unión mediante los medios de unión de las capas que forman el perfil.  - Union by the joining means of the layers forming the profile. 15- Proceso de elaboración de refuerzo (1) para empaques (2) de cartón, según la reivindicación 14, caracterizado por que comprende una fase intermedia, situada entre la primera y la segunda fase, en la que se colocan sobre la primera capa (7), al menos una pareja de capas adicionales (1 1), donde cada capa adicional (1 1) se dispone sobre uno de los segmentos (5) del perfil longitudinal. 15- Process for manufacturing reinforcement (1) for packaging (2) of cardboard, according to claim 14, characterized in that it comprises an intermediate phase, located between the first and the second phase, in which they are placed on the first layer ( 7), at least one pair of additional layers (11), where each additional layer (11) is arranged on one of the segments (5) of the longitudinal profile. 16- Proceso de elaboración de refuerzo (1) para empaques (2) de cartón, según la reivindicación 15, caracterizado por que la fase intermedia comprende además la colocación de al menos una capa intermedia (12.1 , 12.2, 12.3) en una determinada posición respecto a las capas adicionales (1 1) y a la sección transversal del perfil. 16- Process for manufacturing reinforcement (1) for packaging (2) of cardboard, according to claim 15, characterized in that the intermediate phase also comprises the placement of at least one intermediate layer (12.1, 12.2, 12.3) in a certain position with respect to the additional layers (11) and the cross section of the profile.
PCT/ES2016/070389 2016-04-18 2016-05-23 Reinforcement for cardboard packaging, reinforcement-equipped cardboard packaging system, and method for the production of said reinforcement WO2017182681A1 (en)

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EP16899313.7A EP3446995A4 (en) 2016-04-18 2016-05-23 REINFORCEMENT FOR CARDBOARD PACKAGING, CARDBOARD PACKAGING WITH REINFORCING, AND METHOD FOR PREPARING THE SAME

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ESP201630482 2016-04-18
ES201630482A ES2644972B2 (en) 2016-04-18 2016-04-18 Reinforcement for cardboard packaging, installation of cardboard packaging with reinforcement and process of elaboration of said reinforcement

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US1989794A (en) * 1934-06-01 1935-02-05 Crown Willamette Paper Company Padding strip for furniture and other articles
US3913822A (en) * 1974-12-19 1975-10-21 Connelly Containers Inc Two component double thickness shipping containers
US5211618A (en) * 1992-08-03 1993-05-18 The Mead Corporation Self-centering laminated process for corrugated containers and blank therefor
US5944252A (en) * 1997-03-18 1999-08-31 Connelly Containers, Inc. Corrugated board container and method of making the same
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ES2644972B2 (en) 2018-04-06
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ES2644972A1 (en) 2017-12-01

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