WO2014081273A1 - Structurally reinforced plastic box - Google Patents
Structurally reinforced plastic box Download PDFInfo
- Publication number
- WO2014081273A1 WO2014081273A1 PCT/MX2012/000119 MX2012000119W WO2014081273A1 WO 2014081273 A1 WO2014081273 A1 WO 2014081273A1 MX 2012000119 W MX2012000119 W MX 2012000119W WO 2014081273 A1 WO2014081273 A1 WO 2014081273A1
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- WO
- WIPO (PCT)
- Prior art keywords
- box
- boxes
- reinforced plastic
- structurally reinforced
- plastic box
- Prior art date
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Classifications
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/24—Boxes or like containers with side walls of substantial depth for enclosing contents with moulded compartments or partitions
- B65D1/243—Crates for bottles or like containers
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
- B65D1/42—Reinforcing or strengthening parts or members
- B65D1/48—Reinforcements of dissimilar materials, e.g. metal frames in plastic walls
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24012—Materials
- B65D2501/24019—Mainly plastics
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/2405—Construction
- B65D2501/24063—Construction of the walls
- B65D2501/2407—Apertured
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/2405—Construction
- B65D2501/24121—Construction of the bottom
- B65D2501/24133—Grid, mesh
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/2405—Construction
- B65D2501/24146—Connection between walls or of walls with bottom
- B65D2501/24152—Integral
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24197—Arrangements for locating the bottles
- B65D2501/24203—Construction of locating arrangements
- B65D2501/2421—Partitions
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24197—Arrangements for locating the bottles
- B65D2501/24203—Construction of locating arrangements
- B65D2501/24261—Ribs on the side walls
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24197—Arrangements for locating the bottles
- B65D2501/24292—Means for locking the bottles in place
- B65D2501/24299—Rigid
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24363—Handles
- B65D2501/24541—Hand holes
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24554—Stacking means
- B65D2501/24585—Stacking means for stacking or joining the crates together one upon the other, in the upright or upside-down position
- B65D2501/24605—Crates with stacking feet or corner elements
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24554—Stacking means
- B65D2501/24585—Stacking means for stacking or joining the crates together one upon the other, in the upright or upside-down position
- B65D2501/24611—Crates with stacking ribs on the side walls
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24764—Reinforcements
- B65D2501/24789—Means used for reinforcing
- B65D2501/24808—The wall being reinforced by making it thicker or double-walled
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24764—Reinforcements
- B65D2501/24789—Means used for reinforcing
- B65D2501/24821—Reinforcing elements made from a material different to the one of the part being reinforced
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/24—Boxes or like containers with moulded compartments or partitions
- B65D2501/24006—Details relating to bottle crates
- B65D2501/24764—Reinforcements
- B65D2501/24828—Location of the reinforcing means
- B65D2501/24847—Oriented mainly vertically
Definitions
- the present invention is in the field of products useful for transporting containers and / or bottles. Specifically, the present invention relates to a structurally reinforced plastic box that is used for loading and transporting various types of containers and / or bottles.
- document US 5, 417,343 discloses a stackable bottle case of plastic material, in which the side walls are reinforced by vertical columns with profiled holes extending to the upper marginal edge of the side walls of the box and together with the upper marginal edge of a circumferential stacking edge for load reduction.
- the object of this invention is to provide a bottle case that shows maximum rigidity with optimal weight minimization so that load transfer in the stack is possible without danger of damaging the case.
- the load that this geometry can withstand is not very high and in case of any blow, whether caused by the forklift or the fall to the floor during handling, the structure would be damaged and its load capacity lost.
- US 4,548,320 refers to a box for containers that is composed of a plurality of vertical columns that extend from the top to the bottom of the box, each having a pair of members protruding outward.
- the walls supported by said members contribute to the structural strength of the box by providing for the transmission of compression forces directly from the upper stacking edge to the bottom of the box when it is under forces derived from stacking.
- the weight of this box is also excessive, therefore increasing the cost of the box by the amount of plastic material needed and consequently the molding cycle would be very high, also greatly influencing the rise in manufacturing cost.
- US 6,367,630 describes a container with high strength especially suitable for stacking when stacked with another similar when full and for nesting with another similar when empty.
- the container includes a conical receptacle that has vertical walls that are covered by a lid.
- the receptacle has an abruptly enlarged upper perimeter joined to a lower perimeter by a horizontal shelf, which resists buckling of the walls under heavy loads.
- the lid has grooves in the support surfaces of stacking in which the reinforcing members are arranged.
- the reinforcement members may include winged mounts arranged in slits in the lid that are designed to better distribute the shells through the receptacle.
- this type of box is extremely heavy and therefore expensive and even worse when inserting the structural elements in the box, the weight increases considerably. Depending on the material used to reinforce the structure, recycling the box may not be efficient and quite expensive.
- One of the objectives of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles that has high resistance and structural support to the load, thus providing greater stacking capacity, thereby achieving optimum use of the vertical space, thereby reducing the use of space intended for horizontal storage.
- Another objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles, which is lighter compared to conventional boxes and without this affecting its mechanical properties in terms of strength, stiffness and stability mainly.
- a further objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles, which provides greater resistance to the impacts caused by blows or falls, which occur during the mobilization or transport of plastic boxes.
- Another objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles that, due to its structural and reinforcing characteristics, can be produced by a smaller amount of plastic material and therefore achieve a shorter cycle, to in order to optimize its manufacturing and reduce costs.
- Another objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles, that is completely recyclable without any separation of the different materials that make up said box and with a useful life far superior to the boxes conventional.
- the structurally reinforced plastic box according to the present invention in which the reinforcing characteristics are achieved from the strategic injection of a foamed thermoplastic material into specific areas of the structure of said box.
- Figure 1A shows a perspective view of the plastic box according to the present invention.
- Figure IB shows a perspective view from the bottom surface of the plastic box according to the present invention.
- Figure 2A shows a front view of the plastic box according to the present invention.
- Figure 2B shows a right side view of the plastic box according to the present invention.
- Figure 3A is a detailed view of the section of the columns of the plastic box according to the present invention, showing the strategic space of the structure of the box that will be injected with foamed thermoplastic material.
- Figure 3B is a detailed view of the section of the columns of the plastic box according to the present invention, showing the same column after injecting the foamed thermoplastic material.
- Figure 4 is a detailed view of the upper part of one of the columns of the structurally reinforced plastic box according to the present invention, where the hole is shown to facilitate the exit of air and gases when injecting the foamed thermoplastic material.
- Figure 5 illustrates the stacking of structurally reinforced plastic boxes according to the present invention.
- Figure 6A shows the effect of the loading force on the stacked structure formed by the structurally reinforced plastic boxes according to the present invention, when stowed.
- Figure 6B shows the areas where the structural resistance effect of the strategic injection of the foamed thermoplastic material is presented when the structurally reinforced plastic boxes according to the present invention are stacked.
- the present invention relates to a structurally reinforced plastic box for containing containers and / or bottles that has high resistance and structural support to the load, thus providing greater stacking capacity, thereby achieving optimum utilization of the vertical space.
- the structurally reinforced plastic box turns out to be lighter compared to conventional boxes without affecting its mechanical properties and is produced by a smaller amount of plastic material and therefore a shorter cycle is achieved, in order to optimize its manufacturing and reduce costs.
- the plastic box as shown in Figure 1A is made by a plastic injection process.
- Said plastic box comprises long parallel side walls (1), short parallel side walls (2), as well as a base (3) and an open surface (4) and a compartment that has separation elements by means of cross walls (5) which is between said parallel side walls (1) and (2) that serves to contain a plurality of packages and / or bottles.
- figure IB shows a perspective view from the bottom surface of the plastic box according to the present.
- the long parallel side walls (1) as shown in Figure 2A, have at least one horizontal rectangular hole (6) in its central upper part and vertical rectangular gaps along its length. structure, as well as holes at the ends (7) and below the at least one horizontal rectangular hole
- the short parallel side walls (2) as shown in Figure 2B, also have a horizontal rectangular hole (9) in its central upper part and vertical rectangular holes in the ends of its structure (7) as well as at least one horizontal rectangular hole (8) below the horizontal rectangular hole
- the long parallel side walls (1) are connected to the short parallel side walls (2) by means of columns (10) projecting in each of the corners of the base (3), said columns (10) have a hollow in the lower part and a hole (11) in the upper part.
- said columns (10) are injected with a foamed thermoplastic material (12), which is regularly composed of a polyolefin such as PE (polyethylene) and a foaming agent, which gives greater resistance to the structure of the box.
- a foamed thermoplastic material (12) which is regularly composed of a polyolefin such as PE (polyethylene) and a foaming agent, which gives greater resistance to the structure of the box.
- Figure 3A shows the hollow of the columns (10) of the plastic box that will be injected with the foamed thermoplastic material (12), specifically in Figure 3B the same column (10) is shown after injecting the foamed thermoplastic material ( 12).
- Each of the hollow columns (10) of the box has a volume which is injected with the foamed thermoplastic material (12).
- the plastic box once it has been reinforced from the injection of the foamed thermoplastic material (12), obtains a high resistance and structural support to the load, which is greater than 500 kilograms, thus allowing greater stacking capacity, it is that is to say, from 4 to 5 stowage of height achieving an optimum use of the vertical space contributing a saving in the warehouse space.
- Figure 5 shows an example of the stacking of 2 structurally reinforced plastic boxes according to the present invention
- Figure 6A shows the effect of the loading force on the stacked structure (13) formed by the structurally reinforced plastic boxes according to the present invention when they are stowed.
- the columns (10) reinforced with the foamed thermoplastic material (12) form a structural support column that allows stacking, providing great load resistance to the integral structure that is formed, this can be seen in figure 6B where a cross-section of the structural column (14) formed from the columns (10) of the structurally reinforced plastic boxes according to the present invention is shown.
- the box plastic of the present invention has an approximate weight of 1400 grams without the injection of the foamed thermoplastic material (12), once said material has been injected, the structurally reinforced plastic box increases in weight by approximately 1600 grams
- the plastic box of the present invention is easy to handle by users and by multiple means of transportation and storage.
- the structurally reinforced plastic box in order to optimize its manufacturing, can be produced with less raw material and therefore a shorter cycle is achieved compared to traditional boxes; While traditional boxes are produced in a cycle of between 40 to 50 seconds, the structurally reinforced plastic box is produced in a cycle of between 30 and 35 seconds. With this, the cost is reduced through the reduction of the molding time, which allows to obtain a higher production rate.
- the improvements made in the structurally reinforced plastic box of the present invention give it greater resistance to impacts caused by blows or falls and in general to the rough and intense handling thereof; therefore, there is an increase in storage security since, for example, if a forklift hits the structure of the box, it does not break unlike the boxes conventional avoiding the accidents that can be generated.
- the structurally reinforced plastic box of the present invention obtains a longer useful life compared to conventional boxes and at the end of it, can be recycled without the need to separate the materials.
- the structurally reinforced plastic box of the present invention has greater sustainability due to the use of higher recycling percentages, thereby reducing the ecological impact caused by disposal of these boxes.
- thermoplastic foam in the columns of the box managed to increase the load capacity of the box by 17.75%.
- thermoplastic foam in the columns according to the present invention was placed with the injection of thermoplastic foam in the columns according to the present invention, one on top of the other, and a load was applied until the first box collapsed, (which in this case was also the one in the top position), with a result of 24,300 Newtons.
- the strategic injection of thermoplastic foam in the columns of the box managed to increase the load capacity of the boxes by 20.9%.
- the objectives set for this invention are achieved by having an injected plastic box which, being structurally reinforced with thermoplastic foam in the columns, higher stacks are achieved, to take full advantage of the warehouse spaces; with a box weight less and with a lower production cycle, thereby achieving a significant reduction in manufacturing cost.
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Stackable Containers (AREA)
Abstract
The invention relates to a box for containing packagings and/or bottles, consisting of a plastic material and comprising inner dividers and corner reinforcements. The corners of the box have a hollow column structure and the hollow space is filled with foamed thermoplastic material, preferably polyolefins such as polyethylene. In this way, a combination of lightness and resistance is achieved that allows material savings, higher stacking of boxes, resistance to collisions and knocks from careless or violent handling, and the subsequent recycling of the box at the end of its service life without having to separate the materials for said recycling.
Description
CAJA PLÁSTICA REFORZADA ESTRUCTURALMENTE STRUCTURED REINFORCED PLASTIC BOX
Campo de la Invención Field of the Invention
La presente invención se ubica en el campo de los productos útiles para el transporte de envases y/o botellas. Específicamente, la presente invención se refiere a una caja plástica reforzada estructuralmente que se emplea para la carga y transporte de diversos tipos de envases y/o botellas. The present invention is in the field of products useful for transporting containers and / or bottles. Specifically, the present invention relates to a structurally reinforced plastic box that is used for loading and transporting various types of containers and / or bottles.
Antecedentes de la Invención En muchas industrias, existe una gran dinámica para cargar, descargar y transportar una gran diversidad de productos, los cuales frecuentemente se encuentran envasados y/o embotellados. Background of the Invention In many industries, there is great dynamics for loading, unloading and transporting a wide variety of products, which are frequently packaged and / or bottled.
El transporte de muchos de estos productos, usualmente envasados y/o embotellados ya sea en vidrio o en algún envase plástico, se lleva a cabo mediante el uso de cajas plásticas, las cuales constantemente son manipuladas, apiladas o estibadas y transportadas sobre tarimas, por medio de montacargas; sin demasiado cuidado y están expuestas todo el tiempo a impactos y al permanente estrés de la carga. The transport of many of these products, usually packaged and / or bottled either in glass or in a plastic container, is carried out through the use of plastic boxes, which are constantly handled, stacked or stowed and transported on pallets, by forklift medium; without too much care and are exposed all the time to impacts and permanent stress of the load.
Como resulta evidente, estas interacciones a las cuales están sujetas las cajas son muy frecuentes y regularmente se hacen por personal poco capacitado y a una velocidad tal que dichos impactos ocasionan rupturas muchas veces irreversibles que conllevan a la
inevitable sustitución de las cajas con el consecuente gasto por renovación de las mismas. As is evident, these interactions to which the boxes are subject are very frequent and are regularly done by poorly trained personnel and at such a speed that such impacts cause often irreversible ruptures that lead to inevitable replacement of the boxes with the consequent expense for their renewal.
Todo esto sin mencionar que, debido a la resistencia estructural normal de las cajas convencionales, el apilamiento es limitado y frecuentemente se corre el riesgo de que las columnas de las cajas inferiores, sobre las cuales se estiban las demás cajas superiores asi como el peso en general resultante de la estibación del producto, se dañen al grado de vencerse por efecto de la gran carga a la cual están sometidas, produciendo esto accidentes considerables y grandes pérdidas de producto. All this without mentioning that, due to the normal structural resistance of the conventional boxes, the stacking is limited and frequently there is a risk that the columns of the lower boxes, on which the other upper boxes are stowed as well as the weight in In general resulting from the stowage of the product, they are damaged to the degree of expiration due to the effect of the large load to which they are subjected, resulting in considerable accidents and large product losses.
En este mismo sentido, debido a las diferentes necesidades de transportación de los envases y/o botellas contenidos en las cajas, usualmente se llegan a colocar varios envases o botellas por cada caja teniendo un peso aproximado de entre 20 y 30 kilogramos, sin contar el peso propio de la caja. En este sentido, otro gran problema que se presenta es que las cajas que se pretenden estibar, necesitan brindar simultáneamente una resistencia superior a la carga a fin de que puedan soportar el peso de las estibas al que están sujetas, exigiendo al máximo la resistencia estructural y mecánica de dichas cajas. In this same sense, due to the different transportation needs of the containers and / or bottles contained in the boxes, several containers or bottles are usually placed for each box having an approximate weight of between 20 and 30 kilograms, not counting the own weight of the box. In this sense, another big problem that arises is that the boxes that are intended to be stowed, need to simultaneously provide a higher resistance to the load so that they can withstand the weight of the pallets to which they are subjected, demanding the maximum structural resistance and mechanics of these boxes.
Este factor es clave y trascendental, pues cuando las cajas se refuerzan para darles mayor fuerza mecánica estructural, regularmente su peso se incrementa; por ejemplo para que una caja soporte por arriba de los 300 kilogramos su peso en plástico seguramente será superior a los 2 kilogramos. Y si se utilizan elementos externos para reforzarlas, el peso
de la caja será superior en función del material de refuerzo que se utilice. Esto, resulta contraproducente, pues al determinar la carga total que las cajas podrían soportar, hay que considerar también el propio peso de las cajas superiores que se estibaran sobre las que forman la base, convirtiéndose el mismo peso de la caja en una limitante para la estibación, al tener que cargar más peso del tiene que cargar por el propio contenido de la caja, es decir, envase y/o producto. This factor is key and transcendental, because when the boxes are reinforced to give them greater structural mechanical strength, their weight is regularly increased; For example, for a box to support above 300 kilograms, its weight in plastic will surely be greater than 2 kilograms. And if external elements are used to reinforce them, the weight of the box will be superior depending on the reinforcement material used. This is counterproductive, because when determining the total load that the boxes could bear, it is also necessary to consider the weight of the upper boxes that are stowed on which they form the base, making the same weight of the box a limitation for stowage, having to carry more weight has to be loaded by the contents of the box, that is, packaging and / or product.
Más aún, en las cajas plásticas convencionales el golpeo frecuente a su estructura por efecto del uso de las uñas de los montacargas para su manipulación, daña a la caja en general y a corto plazo la convierte en inutilizable debido a que los impactos le generan rupturas irreparables. Además, es muy frecuente que las cajas caigan a diferentes alturas debido a su manipulación, lo cual genera su fácil ruptura y su necesario reemplazo, debido a que su estructura es relativamente frágil en vista de los fuertes y constantes impactos a los que están sometidas. Moreover, in conventional plastic boxes the frequent hit to its structure due to the use of forklift nails for handling, damages the box in general and in the short term makes it unusable because the impacts generate irreparable ruptures . In addition, it is very common that the boxes fall to different heights due to their manipulation, which generates their easy break and their necessary replacement, because their structure is relatively fragile in view of the strong and constant impacts to which they are subjected.
Otro factor que daña las cajas es el manejo que le dan los usuarios, ya que al ser sometida a trabajo rudo y pesado, al paso del tiempo, frecuentemente a corto plazo, las cajas tienen que ser remplazadas, debido a su baja resistencia, pues los impactos vencen la estructura de las cajas convencionales y no resisten la carga a la cual están sometidas. Another factor that damages the boxes is the handling that users give them, since when subjected to heavy and heavy work, over time, often in the short term, the boxes have to be replaced, due to their low resistance, because the impacts overcome the structure of conventional boxes and do not resist the load to which they are subjected.
De esta forma, es evidente que los daños a las cajas son frecuentes y cotidianos, lo cual resulta normalmente en el desecho de las cajas, impactando en
gran medida los costos de operación de las industrias.In this way, it is evident that the damages to the boxes are frequent and daily, which normally results in the disposal of the boxes, impacting on Largely operating costs of industries.
Este problema persiste en la industria y existe la necesidad de una caja reforzada que, debido a su estructura, pueda soportar principalmente carga superior para la estibación de las mismas ya considerando tanto el peso del envase, del producto y de la propia caja, pero que a la vez tenga un gran soporte estructural a los impactos ocasionados por golpes o caldas, logrando que la caja pueda mantener la estabilidad estructural al ser estibada, reduciendo el espacio horizontal para almacenamiento y aprovechando el espacio vertical. This problem persists in the industry and there is a need for a reinforced box that, due to its structure, can mainly withstand higher load for stowage of the same and considering both the weight of the container, the product and the box itself, but that at the same time it has a great structural support to the impacts caused by blows or broths, achieving that the box can maintain the structural stability when stowed, reducing the horizontal space for storage and taking advantage of the vertical space.
En la actualidad, no existe una caja que brinde una resistencia estructural tal que soporte cargas mayores a las cajas convencionales, esto es, no existe una caja tal que su uso permita estibar más cajas que las que por práctica normal un técnico sabe que una columna estibada puede resistir sin desbalancearse y sin que las cajas inferiores que soportan toda la carga superior se venza. At present, there is no box that provides structural strength such that it supports higher loads than conventional boxes, that is, there is no box such that its use allows stowage more boxes than what a technician normally knows that a column Stowed can withstand unbalanced and without the lower boxes that support the entire upper load expires.
Para tratar de solucionar los problemas anteriormente descritos, se han efectuado diversos intentos por proporcionar cajas mas resistentes a las cargas, por lo que existen documentos relacionados con este tipo de cajas reforzadas estructuralmente, tal como el documento US 3, 997, 074 que describe una caja rectangular abierta de la parte superior que esta formada de un material plástico y que internamente está reforzada con un reforzamiento de longitud continua, el cual se extiende sustancialmente a lo largo de las orillas superiores de las dos paredes laterales
opuestas de la caja de manera, bajando adyacentes hacia las 4 orillas de las esquinas verticales de la caja, y a lo largo de las orillas de la parte inferior de las otras dos paredes laterales opuestas de la caja. Este documento indica que esta configuración del refuerzo, el cual puede ser una vara metálica de acero, tiene múltiples ventajas, como la de servir como puntales cuando las cajas se apilan una encima de otra o bien fortalecer a estructura general de la caja cuando se levanta o se maneja. Sin embargo, el peso de dichas cajas es excesivo y el costo de manufactura de las cajas puede resultar muy alto por la introducción de la varilla metálica. Además, cuando la vida útil de la caja llegue a su fin, ésta no podrá ser reciclada directamente ya que requerirá de la separación del plástico y el metal. To try to solve the problems described above, various attempts have been made to provide more load-resistant boxes, so there are documents related to this type of structurally reinforced boxes, such as US 3, 997, 074 describing a open rectangular box of the upper part that is formed of a plastic material and that is internally reinforced with a continuous length reinforcement, which extends substantially along the upper edges of the two side walls opposite the box so, down adjacent to the 4 edges of the vertical corners of the box, and along the banks of the bottom of the other two opposite side walls of the box. This document indicates that this configuration of the reinforcement, which can be a metallic steel rod, has multiple advantages, such as serving as struts when the boxes are stacked one on top of the other or strengthening the overall structure of the box when it is lifted. Or it drives. However, the weight of such boxes is excessive and the manufacturing cost of the boxes can be very high due to the introduction of the metal rod. In addition, when the useful life of the box comes to an end, it cannot be recycled directly as it will require the separation of plastic and metal.
Asimismo, el documento US 5, 417,343 revela una caja de botellas apilable de material plástico, en la cual las paredes laterales están reforzadas por columnas verticales con huecos perfilados que se extienden hasta el borde marginal superior de las paredes laterales de la caja y junto con el borde marginal superior de un borde circunferencial de apilamiento para la reducción de la carga. El objeto de esta invención es brindar una caja de botellas que muestra máxima rigidez con la minimización óptima de peso de modo que la transferencia de carga en el apilamiento es posible sin peligro de dañar la caja. Sin embargo, la carga que puede soportar esta geometría no es muy alta y en caso de que presente algún golpe, ya sea ocasionado por el montacargas o por la caída al
piso durante el manejo, se dañaría la estructura y perdería su capacidad de carga. Likewise, document US 5, 417,343 discloses a stackable bottle case of plastic material, in which the side walls are reinforced by vertical columns with profiled holes extending to the upper marginal edge of the side walls of the box and together with the upper marginal edge of a circumferential stacking edge for load reduction. The object of this invention is to provide a bottle case that shows maximum rigidity with optimal weight minimization so that load transfer in the stack is possible without danger of damaging the case. However, the load that this geometry can withstand is not very high and in case of any blow, whether caused by the forklift or the fall to the floor during handling, the structure would be damaged and its load capacity lost.
Así también, el documento US 4,548,320 se refiere a una caja para envases que se compone de una pluralidad de columnas verticales que se extienden desde la parte superior a la inferior de la caja, teniendo cada una un par de miembros que sobresalen hacia fuera. En la caja según la presente invención, de una manera tal que las paredes soportadas por dichos miembros contribuyen a la resistencia estructural de la caja previendo la transmisión de fuerzas de compresión directamente desde el borde superior de apilamiento a la parte inferior de la caja cuando está bajo fuerzas derivadas del apilamiento. Sin embargo, el peso de esta caja también es excesivo, incrementando por consiguiente el costo de la caja por la cantidad de material plástico necesario y por consecuencia el ciclo de moldeo sería muy alto, influyendo también considerablemente en la elevación del costo de manufactura. Also, US 4,548,320 refers to a box for containers that is composed of a plurality of vertical columns that extend from the top to the bottom of the box, each having a pair of members protruding outward. In the box according to the present invention, in such a way that the walls supported by said members contribute to the structural strength of the box by providing for the transmission of compression forces directly from the upper stacking edge to the bottom of the box when it is under forces derived from stacking. However, the weight of this box is also excessive, therefore increasing the cost of the box by the amount of plastic material needed and consequently the molding cycle would be very high, also greatly influencing the rise in manufacturing cost.
Por otro lado, el documento US 6, 367,630 describe un contendor con alta resistencia especialmente adecuado para apilarse cuando está apilado con otro similar cuando está lleno y para anidarse con otro similar cuando está vacío. El contenedor incluye un receptáculo cónico que tiene paredes verticales que están cubiertas por una tapa. El receptáculo tiene un perímetro superior abruptamente ampliado unido a un perímetro inferior por una repisa horizontal, que resiste el pandeo de las paredes bajo cargas pesadas. La tapa tiene ranuras en las superficies de soporte de
apilamiento en la que los miembros de refuerzo están dispuestos. Los miembros de refuerzo pueden incluir monturas aladas dispuestas en hendiduras en la tapa que están diseñadas para distribuir mejor las carqas a través del receptáculo. Sin embargo, este tipo de caja es extremadamente pesada y por lo mismo costosa y peor aun al insertar los elementos estructurales en la caja, el peso aumenta considerablemente. Dependiendo del material que se utilice para reforzar la estructura, reciclar la caja puede no llegar a ser eficiente y bastante costoso. On the other hand, US 6,367,630 describes a container with high strength especially suitable for stacking when stacked with another similar when full and for nesting with another similar when empty. The container includes a conical receptacle that has vertical walls that are covered by a lid. The receptacle has an abruptly enlarged upper perimeter joined to a lower perimeter by a horizontal shelf, which resists buckling of the walls under heavy loads. The lid has grooves in the support surfaces of stacking in which the reinforcing members are arranged. The reinforcement members may include winged mounts arranged in slits in the lid that are designed to better distribute the shells through the receptacle. However, this type of box is extremely heavy and therefore expensive and even worse when inserting the structural elements in the box, the weight increases considerably. Depending on the material used to reinforce the structure, recycling the box may not be efficient and quite expensive.
Más aún, en el documento US 2, 634,021 se refiere a cajas para contener productos embotellados, que están fuertemente reforzadas de una manera segura e higiénica. Las cajas según este documento cuentan con elementos de refuerzo los cuales facilitan el apilamiento mientras evitan que la caja se deforme o se rompa a pesar del uso duro al cual este tipo de cajas son sometidas. También se indica que los medios para reforzar fuertemente este tipo de cajas están dispuestos en cada una de ellas de manera tal que se evita la proyección de las paredes de la caja hacia el interior y previene que partes de dichos elementos entre en contacto con el contenido de la caja y lo dañen. Sin embargo, este tipo de diseño requiere de varias partes plásticas que después tienen que ser unidas o pegadas de cierta forma; en este caso con ribetes o remaches, lo cual hace que el proceso de manufactura sea realmente complicado y que además, complica el problema de reciclar eficientemente la caja al termino de su vida útil, dependiendo del material
que se utilice para dichos ribetes o remaches. Moreover, in US 2, 634,021 it refers to boxes for containing bottled products, which are strongly reinforced in a safe and hygienic manner. The boxes according to this document have reinforcement elements which facilitate stacking while preventing the box from being deformed or broken despite the hard use to which this type of boxes are subjected. It is also indicated that the means for strongly reinforcing this type of boxes are arranged in each of them in such a way that the projection of the walls of the box towards the interior is avoided and prevents parts of said elements from coming into contact with the contents. of the box and damage it. However, this type of design requires several plastic parts that then have to be joined or glued in a certain way; in this case with rims or rivets, which makes the manufacturing process really complicated and also complicates the problem of efficiently recycling the box at the end of its useful life, depending on the material that is used for such trims or rivets.
En vista de lo anterior, persiste la necesidad de brindar una caja con alta resistencia estructural a la carga y a los impactos, que sea ligera y por lo mismo brinde un ciclo de producción más corto comparada con las cajas convencionales y que con esto disminuya el costo de producción; además que sea 100% reciclable sin ninguna separación de los materiales. Sumario de la Invención In view of the above, there is still a need to provide a box with high structural resistance to load and impact, which is light and therefore provides a shorter production cycle compared to conventional boxes and thus decreases the cost of production; also that it is 100% recyclable without any separation of the materials. Summary of the Invention
Uno de los objetivos de la presente invención es proporcionar una caja plástica reforzada estructuralmente, para contener envases y/o botellas que presente alta resistencia y soporte estructural a la carga, brindando asi mayor capacidad de apilamiento, con lo que se logra un aprovechamiento óptimo del espacio vertical, reduciendo de este modo la utilización del espacio destinado para almacenamiento horizontal. One of the objectives of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles that has high resistance and structural support to the load, thus providing greater stacking capacity, thereby achieving optimum use of the vertical space, thereby reducing the use of space intended for horizontal storage.
Otro objetivo de la presente invención es proporcionar una caja plástica reforzada estructuralmente, para contener envases y/o botellas, que sea más ligera comparada con las cajas convencionales y sin que esto afecte sus propiedades mecánicas en cuanto a resistencia, rigidez y estabilidad principalmente. Another objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles, which is lighter compared to conventional boxes and without this affecting its mechanical properties in terms of strength, stiffness and stability mainly.
Un objetivo más de la presente invención es proporcionar una caja plástica reforzada estructuralmente, para contener envases y/o botellas, que brinde mayor resistencia a los impactos ocasionados
por golpes o caídas, que se producen durante la movilización o transporte de las cajas plásticas. A further objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles, which provides greater resistance to the impacts caused by blows or falls, which occur during the mobilization or transport of plastic boxes.
Otro objetivo de la presente invención es brindar una caja plástica reforzada estructuralmente, para contener envases y/o botellas que, debido a sus características estructurales y de reforzamiento pueda ser producida mediante menor cantidad de material plástico y por consiguiente lograr un ciclo más corto, a fin de optimizar su fabricación y reducir los costos. Another objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles that, due to its structural and reinforcing characteristics, can be produced by a smaller amount of plastic material and therefore achieve a shorter cycle, to in order to optimize its manufacturing and reduce costs.
Más aún, otro objetivo de la presente invención es brindar una caja plástica reforzada estructuralmente, para contener envases y/o botellas, que sea completamente reciclable sin ninguna separación de los diferentes materiales que componen dicha caja y con una vida útil muy superior a las cajas convencionales. Moreover, another objective of the present invention is to provide a structurally reinforced plastic box, to contain containers and / or bottles, that is completely recyclable without any separation of the different materials that make up said box and with a useful life far superior to the boxes conventional.
Estos y otros objetivos son alcanzados mediante la caja plástica reforzada estructuralmente según la presente invención, en la cual las características de reforzamiento se logran a partir de la inyección estratégica de un material termoplástico espumado en zonas específicas de la estructura de dicha caja. These and other objectives are achieved by the structurally reinforced plastic box according to the present invention, in which the reinforcing characteristics are achieved from the strategic injection of a foamed thermoplastic material into specific areas of the structure of said box.
Breve Descripción de las Figuras de la Invención La figura 1A muestra una vista en perspectiva de la caja plástica según la presente invención. La figura IB muestra una vista en perspectiva desde la superficie inferior de la caja plástica según la presente invención . Brief Description of the Figures of the Invention Figure 1A shows a perspective view of the plastic box according to the present invention. Figure IB shows a perspective view from the bottom surface of the plastic box according to the present invention.
La figura 2A muestra una vista frontal de la caja plástica según la presente invención. La figura 2B
muestra una vista lateral derecha de la caja plástica según la presente invención. Figure 2A shows a front view of the plastic box according to the present invention. Figure 2B shows a right side view of the plastic box according to the present invention.
La figura 3A es una vista detallada de la sección de las columnas de la caja plástica según la presente invención, en donde se muestra el espacio estratégico de la estructura de la caja que será inyectado con material termoplástico espumado. La figura 3B es una vista detallada de la sección de las columnas de la caja plástica según la presente invención, que muestra la misma columna después de inyectar el material termoplástico espumado. Figure 3A is a detailed view of the section of the columns of the plastic box according to the present invention, showing the strategic space of the structure of the box that will be injected with foamed thermoplastic material. Figure 3B is a detailed view of the section of the columns of the plastic box according to the present invention, showing the same column after injecting the foamed thermoplastic material.
La figura 4 es una vista detallada la parte superior de una de las columnas de la caja plástica reforzada estructuralmente según la presente invención, donde se muestra el orificio para facilitar la salida de aire y gases al momento de inyectar el material termoplástico espumado. Figure 4 is a detailed view of the upper part of one of the columns of the structurally reinforced plastic box according to the present invention, where the hole is shown to facilitate the exit of air and gases when injecting the foamed thermoplastic material.
La figura 5 ilustra el apilamiento de las cajas plásticas reforzadas estructuralmente según la presente invención. Figure 5 illustrates the stacking of structurally reinforced plastic boxes according to the present invention.
La figura 6A muestra el efecto de la fuerza de carga sobre la estructura apilada que forman las cajas plásticas reforzadas estructuralmente según la presente invención, cuando son estibadas. La Figura 6B muestra las zonas en donde se presenta la resistencia estructural efecto de la inyección estratégica del material termoplástico espumado cuando se apilan las cajas plásticas reforzadas estructuralmente según la presente invención.
Descripción Detallada de la Invención Figure 6A shows the effect of the loading force on the stacked structure formed by the structurally reinforced plastic boxes according to the present invention, when stowed. Figure 6B shows the areas where the structural resistance effect of the strategic injection of the foamed thermoplastic material is presented when the structurally reinforced plastic boxes according to the present invention are stacked. Detailed description of the invention
La presente invención se refiere a una caja plástica reforzada estructuralmente para contener envases y/o botellas que presenta alta resistencia y soporte estructural a la carga, brindando asi mayor capacidad de apilamiento, con lo que se logra un aprovechamiento óptimo del espacio vertical. A su vez, la caja plástica reforzada estructuralmente resulta ser más ligera comparada con las cajas convencionales sin que esto afecte sus propiedades mecánicas y se produce mediante menor cantidad de material plástico y por consiguiente se logra un ciclo más corto, a fin de optimizar su fabricación y reducir los costos. The present invention relates to a structurally reinforced plastic box for containing containers and / or bottles that has high resistance and structural support to the load, thus providing greater stacking capacity, thereby achieving optimum utilization of the vertical space. In turn, the structurally reinforced plastic box turns out to be lighter compared to conventional boxes without affecting its mechanical properties and is produced by a smaller amount of plastic material and therefore a shorter cycle is achieved, in order to optimize its manufacturing and reduce costs.
Según la presente invención, la caja plástica como se muestra en la figura 1A, está hecha por un proceso de inyección de plásticos. Dicha caja plástica comprende paredes laterales paralelas largas (1), paredes laterales paralelas cortas (2), asi como una base (3) y una superficie abierta (4) y un compartimiento que presenta elementos de separación por medio de paredes cruzadas (5) el cual se encuentra entre dichas paredes laterales paralelas (1) y (2) que sirve para contener una pluralidad de envases y/o botellas. Asimismo la figura IB muestra una vista en perspectiva desde la superficie inferior de la caja plástica según la presente. According to the present invention, the plastic box as shown in Figure 1A, is made by a plastic injection process. Said plastic box comprises long parallel side walls (1), short parallel side walls (2), as well as a base (3) and an open surface (4) and a compartment that has separation elements by means of cross walls (5) which is between said parallel side walls (1) and (2) that serves to contain a plurality of packages and / or bottles. Also, figure IB shows a perspective view from the bottom surface of the plastic box according to the present.
Las paredes laterales paralelas largas (1) , como se muestra en la figura 2A, presentan al menos un hueco rectangular horizontal (6) en su parte superior central y huecos rectangulares verticales a lo largo de su
estructura, así como huecos a los extremos (7) y por debajo del al menos un hueco rectangular horizontalThe long parallel side walls (1), as shown in Figure 2A, have at least one horizontal rectangular hole (6) in its central upper part and vertical rectangular gaps along its length. structure, as well as holes at the ends (7) and below the at least one horizontal rectangular hole
(8) . Las paredes laterales paralelas cortas (2), como se muestra en la figura 2B, presentan también, un hueco rectangular horizontal (9) en su parte superior central y huecos rectangulares verticales en los extremos de su estructura (7) así como al menos un hueco rectangular horizontal (8) debajo del hueco rectangular horizontal(8). The short parallel side walls (2), as shown in Figure 2B, also have a horizontal rectangular hole (9) in its central upper part and vertical rectangular holes in the ends of its structure (7) as well as at least one horizontal rectangular hole (8) below the horizontal rectangular hole
(9) . (9).
Las paredes laterales paralelas largas (1) se encuentran conectadas con las paredes laterales paralelas cortas (2) por medio de columnas (10) que se proyectan en cada una de las esquinas de la base (3) , dichas columnas (10) presentan un hueco en la parte inferior y un orificio (11) en la parte superior. The long parallel side walls (1) are connected to the short parallel side walls (2) by means of columns (10) projecting in each of the corners of the base (3), said columns (10) have a hollow in the lower part and a hole (11) in the upper part.
En las figuras 3A y 3B, de acuerdo con la presente invención, dichas columnas (10) se inyectan con un material termoplástico espumado (12), que se compone regularmente por una poliolefina como por ejemplo PE (polietileno) y un agente espumante, lo cual le brinda mayor resistencia a la estructura de la caja. Asimismo la figura 3A muestra el hueco de las columnas (10) de la caja plástica que será inyectado con el material termoplástico espumado (12), específicamente en la figura 3B se muestra la misma columna (10) después de inyectar el material termoplástico espumado (12). Cada una de las columnas (10) huecas de la caja presenta un volumen el cual se inyecta con el material termoplástico espumado (12). In Figures 3A and 3B, according to the present invention, said columns (10) are injected with a foamed thermoplastic material (12), which is regularly composed of a polyolefin such as PE (polyethylene) and a foaming agent, which gives greater resistance to the structure of the box. Also, Figure 3A shows the hollow of the columns (10) of the plastic box that will be injected with the foamed thermoplastic material (12), specifically in Figure 3B the same column (10) is shown after injecting the foamed thermoplastic material ( 12). Each of the hollow columns (10) of the box has a volume which is injected with the foamed thermoplastic material (12).
En este sentido, cuando el material termoplástico espumado (12) se inyecta en los huecos formados en las
columnas (10), el aire y los gases de proceso presentes, son expulsados a través del orificio (11) que se localiza en la parte superior de dichas columnas (10) tal como se muestra en la Figura 4. In this sense, when the foamed thermoplastic material (12) is injected into the gaps formed in the columns (10), the air and process gases present, are expelled through the hole (11) that is located in the upper part of said columns (10) as shown in Figure 4.
La caja plástica, una vez que ha sido reforzada a partir de la inyección del material termoplástico espumado (12) obtiene una alta resistencia y soporte estructural a la carga, la cual es superior a los 500 kilogramos permitiendo asi una mayor capacidad de apilamiento, es decir, de 4 a 5 estibas de altura logrando un aprovechamiento óptimo del espacio vertical aportando un ahorro en el espacio de almacén. La figura 5 muestra un ejemplo del apilamiento de 2 cajas plásticas reforzadas estructuralmente según la presente invención y la figura 6A muestra el efecto de la fuerza de carga sobre la estructura apilada (13) que forman las cajas plásticas reforzadas estructuralmente según la presente invención cuando son estibadas. Cuando las cajas plásticas están apiladas, las columnas (10) reforzadas con el material termoplástico espumado (12) forman una columna estructural de soporte que permite el apilamiento, brindando gran resistencia a la carga a la estructura integral que se forma, esto se puede apreciar en la figura 6B donde se muestra un corte transversal de la columna estructural (14) formada a partir de las columnas (10) de las cajas plásticas reforzadas estructuralmente según la presente invención . The plastic box, once it has been reinforced from the injection of the foamed thermoplastic material (12), obtains a high resistance and structural support to the load, which is greater than 500 kilograms, thus allowing greater stacking capacity, it is that is to say, from 4 to 5 stowage of height achieving an optimum use of the vertical space contributing a saving in the warehouse space. Figure 5 shows an example of the stacking of 2 structurally reinforced plastic boxes according to the present invention and Figure 6A shows the effect of the loading force on the stacked structure (13) formed by the structurally reinforced plastic boxes according to the present invention when they are stowed. When the plastic boxes are stacked, the columns (10) reinforced with the foamed thermoplastic material (12) form a structural support column that allows stacking, providing great load resistance to the integral structure that is formed, this can be seen in figure 6B where a cross-section of the structural column (14) formed from the columns (10) of the structurally reinforced plastic boxes according to the present invention is shown.
En el estado del arte se han descrito cajas plásticas convencionales las cuales tienen un peso superior a los 2000 gramos. Por otro lado, la caja
plástica de la presente invención tiene un peso aproximado de 1400 gramos sin la inyección del material termoplástico espumado (12), una vez inyectado dicho material, la caja plástica reforzada estructuralmente aumenta en peso aproximadamente a 1600 gramos Al reducir el peso en comparación con las cajas convencionales se obtiene una estructura más ligera, sin que esto afecte sus propiedades mecánicas en cuanto a resistencia, rigidez y estabilidad principalmente, a su vez la caja plástica de la presente invención resulta fácil de manipular por los usuarios y por los múltiples medios de transportación y almacenamiento. Conventional plastic boxes which weigh more than 2000 grams have been described in the state of the art. On the other hand, the box plastic of the present invention has an approximate weight of 1400 grams without the injection of the foamed thermoplastic material (12), once said material has been injected, the structurally reinforced plastic box increases in weight by approximately 1600 grams By reducing the weight compared to the boxes Conventionally, a lighter structure is obtained, without affecting its mechanical properties in terms of strength, stiffness and stability, in turn, the plastic box of the present invention is easy to handle by users and by multiple means of transportation and storage.
En este sentido, a fin de optimizar su fabricación, la caja plástica estructuralmente reforzada, puede ser producida con menos materia prima y por lo tanto se logra un ciclo más corto en comparación con las cajas tradicionales; mientras que las cajas tradicionales se producen en un ciclo de entre 40 a 50 segundos, la caja plástica reforzada estructuralmente se produce en un ciclo de entre 30 y 35 segundos. Con ello, se reduce el costo a través de la reducción del tiempo de moldeo, lo que permite obtener una tasa de producción mayor. In this sense, in order to optimize its manufacturing, the structurally reinforced plastic box can be produced with less raw material and therefore a shorter cycle is achieved compared to traditional boxes; While traditional boxes are produced in a cycle of between 40 to 50 seconds, the structurally reinforced plastic box is produced in a cycle of between 30 and 35 seconds. With this, the cost is reduced through the reduction of the molding time, which allows to obtain a higher production rate.
Más aún, las mejoras hechas en la caja plástica reforzada estructuralmente de la presente invención, le brindan mayor resistencia a los impactos ocasionados por golpes o caídas y en general a la manipulación ruda e intensa de éstas; por lo tanto, existe un aumento de la seguridad del almacenamiento ya que, por ejemplo, si un montacargas llega a golpear la estructura de la caja, ésta no se rompe a diferencia de las cajas
convencionales evitando asi, los accidentes que con ello se pueden generar. Moreover, the improvements made in the structurally reinforced plastic box of the present invention, give it greater resistance to impacts caused by blows or falls and in general to the rough and intense handling thereof; therefore, there is an increase in storage security since, for example, if a forklift hits the structure of the box, it does not break unlike the boxes conventional avoiding the accidents that can be generated.
Por otra parte, la caja plástica reforzada estructuralmente de la presente invención, obtiene una vida útil más larga en comparación con las cajas convencionales y al final de ésta, se puede reciclar sin necesidad de separar los materiales. On the other hand, the structurally reinforced plastic box of the present invention, obtains a longer useful life compared to conventional boxes and at the end of it, can be recycled without the need to separate the materials.
A su vez, la caja plástica reforzada estructuralmente de la presente invención, tiene una mayor sustentabilidad debido al uso de mayores porcentajes de reciclaje reduciendo con esto el impacto ecológico que ocasiona desechar estas cajas. In turn, the structurally reinforced plastic box of the present invention has greater sustainability due to the use of higher recycling percentages, thereby reducing the ecological impact caused by disposal of these boxes.
Ej emplo Example
A fin de comprobar las ventajas que presenta la caja plástica reforzada estructuralmente inyectada estratégicamente con material termoplástico espumado (12) según la presente invención, ésta fue sometida a pruebas mecánicas de esfuerzos a compresión permitiendo comprobar el efecto y el cambio en sus propiedades que se produce al inyectar el material termoplástico espumado (12) que se compone de PE (polietileno) y un de agente espumante. In order to verify the advantages of the structurally reinforced plastic box strategically injected with foamed thermoplastic material (12) according to the present invention, it was subjected to mechanical tests of compressive stresses allowing to verify the effect and the change in its properties that occurs by injecting the foamed thermoplastic material (12) which is composed of PE (polyethylene) and a foaming agent.
Se realizaron pruebas de resistencia estructural y comportamiento mecánico para demostrar las ventajas de la caja plástica reforzada estructuralmente según la presente invención: se tomaron dos cajas, como la descrita en las figuras de esta invención, una sin material termoplástico espumado y otra con el material termoplástico espumado (12) ya inyectado. Structural strength and mechanical behavior tests were performed to demonstrate the advantages of the structurally reinforced plastic box according to the present invention: two boxes were taken, as described in the figures of this invention, one without foamed thermoplastic material and another with the thermoplastic material foamed (12) already injected.
En la primera prueba, se colocó una sola caja sin
material termoplástico espumado en un equipo de laboratorio para compresión y se aplicó carga hasta que colapso la caja; el resultado obtenido fue de 23,100 Newtons. Por otra parte, se colocó ahora una sola caja plástica reforzada estructuralmente que fue inyectada estratégicamente en las columnas con el material termoplástico espumado (12), como la que se describe en la presente invención, y de igual forma fue sometida a un esfuerzo de compresión hasta que colapso; obteniendo un resultado de 27,200 Newtons. Como se observa la inyección estratégica de la espuma termoplástica en las columnas de la caja logró incrementar en 17.75% la capacidad de carga de la caja. In the first test, a single box was placed without Foamed thermoplastic material in a laboratory equipment for compression and loading was applied until the case collapsed; The result was 23,100 Newtons. On the other hand, a single structurally reinforced plastic box was now placed that was strategically injected into the columns with the foamed thermoplastic material (12), such as that described in the present invention, and likewise was subjected to a compression effort until it collapses; obtaining a result of 27,200 Newtons. As can be seen, the strategic injection of the thermoplastic foam in the columns of the box managed to increase the load capacity of the box by 17.75%.
En una segunda prueba, se colocaron dos cajas sin material termoplástico espumado, una sobre de otra, en el mismo equipo de laboratorio para compresión; se aplicó una carga hasta que colapso la primera caja, (que en este caso fue la que se encontraba en la posición superior), con un resultado de 20,100 Newtons. Posteriormente se colocaron dos cajas reforzadas estructuralmente con la inyección de espuma termoplástica en las columnas según la presente invención, una sobre otra, y se aplicó una carga hasta que colapso la primera caja, (que en este caso también fue la que se encontraba en la posición superior) , con un resultado de 24,300 Newtons. Como se observa en esta segunda prueba, la inyección estratégica de espuma termoplástica en las columnas de la caja logró incrementar en 20.9% la capacidad de carga de las cajas. In a second test, two boxes without foamed thermoplastic material, one envelope from another, were placed in the same laboratory equipment for compression; a load was applied until the first box collapsed, (which in this case was the one in the upper position), with a result of 20,100 Newtons. Subsequently, two structurally reinforced boxes were placed with the injection of thermoplastic foam in the columns according to the present invention, one on top of the other, and a load was applied until the first box collapsed, (which in this case was also the one in the top position), with a result of 24,300 Newtons. As observed in this second test, the strategic injection of thermoplastic foam in the columns of the box managed to increase the load capacity of the boxes by 20.9%.
Con estas pruebas de laboratorio se puede concluir
que en el trabajo cotidiano, al estibar varios niveles de cajas según la presente invención con producto por pallet y varios pallets con cajas, uno encima de otro, la distribución de la carga permitirá lograr torres de cuatro o cinco niveles de pallets con cajas según la presente invención y producto. Como referencia, las cajas convencionales se estiban sólo a 2.5 a 3.0 niveles . With these laboratory tests you can conclude that in the daily work, when stowage several levels of boxes according to the present invention with product by pallet and several pallets with boxes, one on top of the other, the distribution of the load will allow to achieve towers of four or five levels of pallets with boxes according to the Present invention and product. As a reference, conventional boxes are stowed only at 2.5 to 3.0 levels.
Por lo tanto, se logran los objetivos planteados para esta invención al tener una caja de plástico inyectada que al ser reforzada estructuralmente con espuma termoplástica en las columnas se logran estibas más altas, para aprovechar al máximo los espacios de los almacenes; con un peso de la caja menos y con un ciclo de producción menor, logrando con eso una reducción importante en el costo de manufactura.
Therefore, the objectives set for this invention are achieved by having an injected plastic box which, being structurally reinforced with thermoplastic foam in the columns, higher stacks are achieved, to take full advantage of the warehouse spaces; with a box weight less and with a lower production cycle, thereby achieving a significant reduction in manufacturing cost.
Claims
1. Una caja plástica reforzada estructuralmente fabricada mediante inyección de plástico, caracterizada porque comprende paredes laterales paralelas largas (1), paredes laterales paralelas cortas (2), asi como una base (3), una superficie abierta (4) y un compartimiento que presenta elementos de separación por medio de paredes cruzadas (5) el cual se encuentra entre dichas paredes laterales paralelas (1) y (2) que sirve para contener una pluralidad de envases y/o botellas, en donde las columnas (10) se inyectan con un material termoplástico espumado (12) en los huecos por la parte inferior de dichas columnas (10) brindando a la estructura integral de la caja alta resistencia ( 13 ) y capacidad superior de soporte a la carga (14). 1. A structurally reinforced plastic box manufactured by plastic injection, characterized in that it comprises long parallel side walls (1), short parallel side walls (2), as well as a base (3), an open surface (4) and a compartment that it presents separation elements by means of crossed walls (5) which is between said parallel side walls (1) and (2) which serves to contain a plurality of containers and / or bottles, in which the columns (10) are injected with a foamed thermoplastic material (12) in the gaps at the bottom of said columns (10) providing the integral structure of the box with high resistance (13) and superior load bearing capacity (14).
2. La caja plástica reforzada estructuralmente según la reivindicación 1, caracterizada porque el material termoplástico espumado (12) se compone de una poliolefina tal como el PE (polietileno) y un agente espumante . 2. The structurally reinforced plastic box according to claim 1, characterized in that the foamed thermoplastic material (12) is composed of a polyolefin such as PE (polyethylene) and a foaming agent.
3. La caja plástica reforzada estructuralmente según la reivindicación 1, caracterizada porque el reforzamiento estructural estratégico que le brinda la inyección del material termoplástico hace que la caja sea susceptible de brindar mayor capacidad de apilamiento, con lo cual se logra un aprovechamiento óptimo del espacio vertical en los almacenes.
3. The structurally reinforced plastic box according to claim 1, characterized in that the strategic structural reinforcement provided by the injection of the thermoplastic material makes the box capable of providing greater stacking capacity, thereby achieving optimum use of the vertical space In the stores.
4. La caja plástica reforzada estructuralmente según la reivindicación 1, caracterizada porque resulta ser mucho más ligera comparada con las cajas convencionales e incluso contra otras cajas reforzadas convencionalmente, sin que esto afecte sus propiedades sobre resistencia estructural y mecánica de dichas cajas . 4. The structurally reinforced plastic box according to claim 1, characterized in that it turns out to be much lighter compared to conventional boxes and even against other conventionally reinforced boxes, without this affecting their properties on structural and mechanical resistance of said boxes.
5. La caja plástica reforzada estructuralmente según la reivindicación 1, caracterizada además porque el reforzamiento estructural estratégico que le brinda la inyección del material termoplástico hace que la caja tenga mucha mayor resistencia a los impactos ocasionados por golpes o caídas que se producen durante la movilización o transporte de éstas, logrando brindarle a la caja una vida útil muy superior a las cajas convencionales. 5. The structurally reinforced plastic box according to claim 1, further characterized in that the strategic structural reinforcement provided by the injection of the thermoplastic material causes the box to have much greater resistance to impacts caused by shocks or falls that occur during mobilization or transport of these, managing to provide the box with a useful life far superior to conventional boxes.
6. La caja plástica reforzada estructuralmente según la reivindicación 1, caracterizada porque para su producción se requiere menor cantidad de material plástico y por consiguiente se logra un ciclo más corto, a fin de optimizar su fabricación y reducir los costos . 6. The structurally reinforced plastic box according to claim 1, characterized in that a smaller amount of plastic material is required for its production and therefore a shorter cycle is achieved, in order to optimize its manufacturing and reduce costs.
7. La caja plástica reforzada estructuralmente según la reivindicación 1, caracterizada porque es completa y fácilmente reciclable pues no hay necesidad de separar los diferentes materiales que la componen.
7. The structurally reinforced plastic box according to claim 1, characterized in that it is completely and easily recyclable as there is no need to separate the different materials that compose it.
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PCT/MX2012/000119 WO2014081273A1 (en) | 2012-11-22 | 2012-11-22 | Structurally reinforced plastic box |
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PCT/MX2012/000119 WO2014081273A1 (en) | 2012-11-22 | 2012-11-22 | Structurally reinforced plastic box |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104816864A (en) * | 2015-04-17 | 2015-08-05 | 柳州蔚园塑料彩印包装有限责任公司 | Material conveying plastic basket |
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EP2316631A1 (en) * | 2008-07-15 | 2011-05-04 | Sergio Sosa Bravo | Process for producing moulded plastic articles having walls reinforced with the injection of foamed thermoplastics |
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EP1484154A1 (en) * | 2003-06-06 | 2004-12-08 | Plamatec AG | Multimaterial injection molding using the core-back process |
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