WO2022034065A1 - Cage enveloppante détachable pour palettes - Google Patents

Cage enveloppante détachable pour palettes Download PDF

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Publication number
WO2022034065A1
WO2022034065A1 PCT/EP2021/072256 EP2021072256W WO2022034065A1 WO 2022034065 A1 WO2022034065 A1 WO 2022034065A1 EP 2021072256 W EP2021072256 W EP 2021072256W WO 2022034065 A1 WO2022034065 A1 WO 2022034065A1
Authority
WO
WIPO (PCT)
Prior art keywords
vertical
detachable
enveloping
attached
cage
Prior art date
Application number
PCT/EP2021/072256
Other languages
English (en)
Inventor
Eduardo CIFUENTES OJEDA
Josep QUIÑONERO CAMPANO
Original Assignee
Sumal, 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 Sumal, Sl filed Critical Sumal, Sl
Publication of WO2022034065A1 publication Critical patent/WO2022034065A1/fr

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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
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • B65D19/385—Frames, corner posts or pallet converters, e.g. for facilitating stacking of charged pallets

Definitions

  • the present invention relates to the field of detachable enveloping cages for pallets.
  • This type of cages consists of different parts which may be engaged with each other and attached around a previously loaded pallet, providing certain retention to the load of the pallet and also providing support to superimpose an additional loaded pallet superimposed to said detachable enveloping cage, allowing to increase the packaging density of products and the shipping speed.
  • the end structures are attached to each other by an upper bar with hooks on its ends acting as releasable connectors and preventing the separation of the end structures.
  • Said upper bar does not provide any rigidity to the cage assembly, nor does it increase its resistance to horizontal stresses.
  • the end structures present an upper beam attached to two vertical uprights, forming an open frame in the shape of an inverted “U”, and which further includes guide profiles, with at least one non-parallel section (with increasing separation in the descending direction), connected by a sliding connector.
  • the sliding movement of the sliding connector along the corresponding non-parallel sections of the guide profiles causes an elastic deformation of the open frame, causing the lower end portions of the vertical uprights to move closer to each other, where the pallet coupling configurations are attached, thus allowing to couple and release the pallet through the control of the elastic deformation of each end structure by the sliding movement of the sliding connector.
  • the dimensions of the pallets are standardised, and the width of the pallet transport vehicles has been optimised to allow putting a certain number of pallets side by side, considering said standardised dimensions.
  • the coupling configurations remain connected with the pallet by causing the end portions of the vertical uprights to move closer to each other, since the coupling configurations are located on the outside of the pallet and they compress it when they are mutually coupled.
  • This arrangement increases the width of the pallet and cage assembly, relative to the pallet width, whereby the load capacity of a vehicle may be reduced.
  • the present invention solves these and other problems.
  • the present invention relates to a detachable enveloping cage for pallets, that is, a structure in the shape of a cage formed by several elements which may be assembled around a loaded pallet, enveloping it, and which may be disassembled, giving access to the load of the pallet.
  • the proposed detachable enveloping cage comprises, in a manner known per se, the following elements:
  • each adjusting device includes two opposing guide profiles, each one attached to at least the lower portion of one of the vertical uprights, the separation between the two guide profiles being non-uniform at least in a lower portion.
  • the adjusting device also includes a sliding connector slidingly attached to a lower portion of both guide profiles for the adjustment of their separation.
  • the open frame in the shape of an inverted “u” may be elastically deformed, causing the lower ends of the vertical uprights to move closer to and/or away from each other, by the adjusting device. This allows to move the two coupling configurations attached to the vertical uprights of the same end structure closer to or away from each other, allowing them to engage and disengage a pallet.
  • the rigidity of the open frame will depend on said elasticity modulus and also its geometry.
  • the form of the open frame in the shape of a “U”, facilitates the deformability of said open frame, even when it is made from a very rigid material such as, for instance, metallic materials or steel.
  • the previously mentioned guide profiles are embedded in the open frame, between the vertical uprights, and are attached to at least a lower portion of the vertical uprights.
  • the guide profiles are not parallel; rather, they are separated by a non-uniform distance.
  • said distance will increase or decrease, preferably in a uniform manner, in the descending direction; in other words, the separation between both guide profiles is larger or smaller each time, as they approach their lower end.
  • said two guide profiles, embedded in the same end structure are symmetrical.
  • the attachment of an upper end of each guide profile to the beam of the open frame is also contemplated.
  • the adjusting device will also include a sliding connector, connected to both guide profiles allowing its sliding movement along said guide profiles.
  • the sliding connector has two connection ends separated by a pre-set distance, each one being attached to one of the guide profiles.
  • the end structures may be elastically deformed by modifying the separation between the coupling configurations, allowing for the controlled coupling and release of said coupling configurations to a pallet.
  • the present invention also proposes, in a known manner in the state of the art, the following characteristics:
  • each vertical upright includes a support foot on its lower end, and each beam includes a horizontal support surface vertically aligned with said support foot and intended for its coupling with a support foot of a superimposed enveloping cage;
  • each coupling configuration comprises a retaining tab, located above said support foot and contained within the enveloping cage, which includes a vertical platen, protruding perpendicularly to the inner side of the end structure, parallel at a distance from the perimeter of the enveloping cage, and a retaining end, perpendicular to the vertical platen and protruding towards the exterior of the enveloping cage.
  • the end structures are not supported on the pallet; rather, they are supported on the floor, or on a base of a lower detachable enveloping cage, by a support foot provided on its lower end. Therefore, when the enveloping cage is assembled, the end structures are not located on the pallet, but are located next to the pallet, supported directly on the floor, and therefore do not occupy a usable surface of the pallet.
  • said end structures are located opposite to the sides of the pallet, leaving the openings of the pallet accessible for the insertion of the forks of a pallet forklift.
  • the width of the end structures will be equal to or slightly smaller than the width of the pallets, ensuring that after assembling the cage around the pallet its width does not increase. This way, only the length of the pallet and cage assembly is increased, but not its width.
  • the support surface of the beams extends farther than the position vertically aligned with the support feet of the vertical uprights, also offering a support surface for the pallets of the superimposed cages. Therefore, in each level of the assembly of superimposed cages, there will be a pallet that will perform as a floor which will be supported on its ends directly on the beams of the cages located at a lower level, said pallets remaining attached to its enveloping cage by said retaining tabs constituting the coupling configuration.
  • each coupling configuration consist of a retaining tab formed by a vertical platen, perpendicular to the inner side of the open frame, intended for being inserted within the pallet through its side, the vertical platen remaining opposed to and abutting one of the corner blocks which conform the pallet on its interior.
  • Said vertical platen will, therefore, be parallel and separated from the side of the cage, that is, from the vertical plane defined by the side structure, by a distance equivalent to the width of a corner block of the pallet.
  • the end of the vertical platen farthest from the end structure includes a vertical retainer perpendicular to said vertical platen, facing the outside of the cage.
  • said retaining tabs being in a first initial position, are intended to be inserted into the pallet through its front end, through the openings intended for the insertion of the forks of a forklift.
  • the retaining tabs are anchored, partially surrounding the corner blocks of said front end of the pallet by forcing the separation of the retaining tabs by causing the expansive elastic deformation of the open frame constituting the end structure via the adjusting device.
  • the separation between the guide profiles will taper in a descending direction.
  • the sliding connector will have an interposed portion between the two guide profiles, for the transmission of expansive forces between the guide profiles connected to the lower portions of the vertical uprights when the sliding connector is slid in the descending direction.
  • the minimum distance between the guide profiles will exist in the lower end of said guide profiles and, in the resting position, when the sliding connector is above the lower end of the guide profiles, said minimum distance between the guide profiles will be smaller than the length of the interposed portion of the sliding connector.
  • the sliding connector may also include clamps at least partially enveloping the two guide profiles, so that when the sliding connector is slid in an ascending direction, the guide profiles are forced to move closer to one another, pulling the intermediate connector.
  • the adjusting device may also include a guide element attached to the sliding connector to guide its sliding movement in a vertical direction, this guide element preventing the sliding connector from jamming as a result of its non-linear, non-uniform descent along the two guide profiles.
  • said guide element will comprise two vertical bars guided and attached by their lower end to the sliding connector.
  • the adjusting device also include a handle connected to the sliding connector and above it for a user to carry out its vertical sliding movement, without the need to bend down.
  • said handle will be connected to the sliding connector by the guided vertical bars of the guide element.
  • a retainer in the adjusting device to block the sliding movement of the sliding connector.
  • said retainer will prevent its ascending sliding movement once it reaches the lower position of its stroke, when the separation between the lower portions of the vertical uprights is maximum.
  • Each one of the previously cited side structures will comprise a rigidised vertical quadrangle, connected to each vertical upright in at least two points. That is, each side structure consists of a quadrangle arranged in a vertical orientation, coinciding with a lateral plane of the perimeter of the cage. Said side quadrangle will be rigidised, that is, it will include elements which ensure its non-deformability in the vertical plane, such as, for example, diagonal elements, triangular bars or a solid or pierced sheet that covers its interior. Any of these solutions, firmly attached to the quadrangle, will prevent said quadrangle from deforming, thereby remaining rectangular.
  • the vertical quadrangle may have a perimetral frame, or may include only two crossbeams conveniently connected to one another to ensure that they remain parallel to each other.
  • connection of the side structure with each vertical upright in at least two points of the rigidised vertical quadrangle allows to achieve a rigid attachment between the side structure and the end structure.
  • the combination of the rigidised vertical quadrangle with the rigid attachments provides a rigid cage which resists lateral stresses, for example when several cages are superimposed with loaded pallets within a vehicle which experiences accelerations and decelerations.
  • the releasable connectors which connect the side structures to the vertical uprights, be located on an outer side of each end structure, opposite to its inner side.
  • releasable connectors were located in the inner side of the end structures, they would occupy part of the space intended for the load of the pallet, being liable to interfere therewith, and if they were located on the sides of the end structures, their width would increase, hindering the vehicle shipping optimisation of the pallet and cage assembly. Therefore, it is proposed that the releasable anchors be placed in the outer side of the end structures.
  • the side structures will have a length equal to or slightly larger than the combined length of the pallet and the two end structures, in order to access the releasable anchors located in the outer side of said end structures through the ends of the inner face of the side structures, which will engage the end structures by said releasable connectors.
  • the releasable connectors consist of vertical pins, attached to the ends of the side structures, inserted in openings complementary to the pins, attached to the vertical uprights of the end structures.
  • releasable connectors consist of vertical pins, attached to the vertical uprights of the end structures, inserted in openings complementary to the pins, attached to the ends of the side structures.
  • the releasable connectors may also include a sliding latch configured for retaining at least a pin within the complementary opening and for being manually releasable.
  • Fig. 1 shows a perspective view of a detachable enveloping cage assembled around a pallet, and coupled therewith;
  • Figs. 2 and 3 show a perspective view of the end structure in two different positions of elastic deformation, corresponding to a position of maximum separation of the coupling configurations, shown in Fig. 2, and a position of maximum closeness of the coupling configurations, shown in Fig. 3;
  • Figs. 4 and 5 show an enlarged perspective view of the retainer of the sliding connector in two different positions, corresponding to a released position, shown in Fig. 4, and a retained position, shown in Fig. 5, wherein the retainer is coupled to the handle of the adjusting device to prevent its ascending movement;
  • Fig. 6 shows a perspective view of the side structure
  • Figs. 7 and 8 show an enlarged perspective view of the releasable connectors, which connect the side structure with the end structure, in two different positions, corresponding to a disengaged position, shown in Fig. 7, and an engaged position, shown in Fig. 8.
  • the invention comprises two end structures 10, mutually opposed by their inner side, and located adjacent the two opposite sides of a pallet, and two side structures 20, each one extending from an end structure 10 to the other end structure 10.
  • the side structures 20 are connected to the end structures 10 by releasable connectors 21 , 22, which allow to assemble and disassemble the enveloping cage in a fast and simple manner, without the need for tools.
  • Each end structure 10 comprises two vertical uprights 12, each one formed by a rectangular section tube, welded by its upper end to an upper beam 11 , which in this example is formed by a platen, defining an open frame in the shape of an inverted “U”.
  • Each end structure 10 also includes an adjusting device 30 which serves to modify the separation between the lower ends of the vertical uprights 12 by an elastic deformation of said open frame.
  • Said deformation may be caused, for example, by the bending of the central area of the upper beam 11 , by the bending of the vertical uprights 12, or by a combination of said deformations.
  • the adjusting device 30 comprises two symmetrical guide profiles 31 , contained within the open frame.
  • Each guide profile has a substantially vertical section which runs from the upper beam 11 to the lower end of the end structure 10, and a substantially horizontal section which connects the substantially vertical section with the lower portion of the vertical uprights 12.
  • the lower portions of the substantially vertical sections of the two guide profiles 31 are not parallel, but their separation diminishes as they approach the lower end. Therefore, a channel of decreasing dimensions is defined between the guide profiles 31.
  • the adjusting device 30 also includes a sliding connector 32 simultaneously slidingly connected to the two guide profiles 31.
  • the sliding connector 32 has a defined unalterable length and, therefore, when sliding along the guide profiles 31 in a descending direction, it separates the guide profiles 31 , causing an elastic deformation of the open frame, and when sliding in the ascending direction brings the guide profiles 31 closer to each other.
  • the sliding connector 32 comprises an interposed portion and two holes, rings or tubular segments on its ends threaded through the two guide profiles.
  • the adjusting device 30 shown also includes a handle 34, located above the sliding connector 32, and connected thereto by a guide element 33, consisting of two vertical bars guided and attached by their lower end to the sliding connector 32.
  • the guide element 33 prevents the sliding connector 32 from turning during its sliding movement, and the handle 34 allows a user to comfortably actuate the sliding connector without having to bend down.
  • the proposed adjusting device 30 also comprises a retainer 35 in the shape of a hook that, when the sliding connector 32 is in a lower position of its stroke, may be manually attached to the handle 35 preventing an ascending sliding movement of the sliding connector 32.
  • each vertical upright 12 includes a support foot 13 intended for being supported on the same floor on which the pallet to which the enveloping cage is attached is supported.
  • each vertical upright 12 also includes a coupling configuration 40 consisting in a retaining tab 41 , 42.
  • Each retaining tab is formed by a vertical platen 41 attached to the lower portion of the vertical upright 12 and which protrudes perpendicularly to said end structure 10 by its inner side. Said vertical platen 41 will be parallel and separated from the side of the cage by a distance equal to the width of a corner block of the pallet, the retaining tab remaining contained within the enveloping cage, and therefore without producing an increase in the width of the pallet and cage assembly relative to the width of a pallet without a cage.
  • One end of the vertical platen 41 will be bent 90° towards the outside of the cage, forming a retaining end 42 which allows said retaining tab 41 , 42 to partially surround the corner block of the pallet by its interior, producing a firm grip.
  • Each pallet includes an upper load platform, and nine spacer blocks arranged in a three-by- three matrix, attached underneath the upper platform, defining four crossing channels for forks. It is also common for the spacer blocks to be connected three by three with each other by their base.
  • each side structure 20 comprises two crossbeams, formed by two rectangular tubular profiles, parallel and spaced one above the other in a vertical plane. The two crossbeams are rigidly connected with each other by triangular bars, forming a lattice beam.
  • Each vertical upright 12 will include, on the outer side of the end structure 10, two superimposed openings 22, each one configured for the insertion of a vertical bolt 21 attached on an inner face of the end of the side structure 20. Said inner face is the face opposing the other side structure 20.
  • the insertion of the bolts 21 within the holes 22 is achieved by a vertical shifting of the side structure 20 once the bolts 21 and the holes 22 are aligned, providing a rigid attachment between the end structure 10 and the side structure 20.
  • a sliding latch is also included, associated with one of said holes 22, which allows for the insertion of the bolt 21 but prevents its removal.
  • a manual knob allows an operator to release the sliding latch, allowing for the disassembly of the enveloping cage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

Une cage enveloppante détachable destinée à des palettes comprend deux structures d'extrémité opposées (10), comprenant une barre supérieure (11) et deux montants verticaux (12) formant un cadre ouvert en « U » inversé, et un dispositif de réglage (30) conçu pour provoquer une déformation élastique du cadre ouvert par modification de la séparation entre des parties inférieures des montants verticaux (12) ; quatre configurations d'accouplement (40), chacune étant fixée à la partie inférieure d'un montant vertical (12), permettant l'accouplement de la cage enveloppante aux coins d'une palette ; et deux structures latérales opposées (20), chacune étant reliée par des raccords amovibles (21, 22) à deux des montants verticaux (12) des structures d'extrémité opposées (10).
PCT/EP2021/072256 2020-08-11 2021-08-10 Cage enveloppante détachable pour palettes WO2022034065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES202031811U ES1254352Y (es) 2020-08-11 2020-08-11 Jaula envolvente desarmable para pales
ESU202031811 2020-08-11

Publications (1)

Publication Number Publication Date
WO2022034065A1 true WO2022034065A1 (fr) 2022-02-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/072256 WO2022034065A1 (fr) 2020-08-11 2021-08-10 Cage enveloppante détachable pour palettes

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ES (1) ES1254352Y (fr)
WO (1) WO2022034065A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH369404A (de) * 1958-12-03 1963-05-15 Grythyttans Stalmoebler Ab Ladeplatte mit lösbarer Güterstütze
ES207975U (es) 1974-11-29 1976-03-16 Combitainer Hispania Contenedor plegable.
DE7732613U1 (de) * 1977-10-22 1978-03-09 Aspa Foerdergeraete Flachpaletten-Stapelbuegel
JPS5561529U (fr) * 1978-10-23 1980-04-26
DE3015983A1 (de) 1980-04-25 1981-11-05 Gebhard 8882 Lauingen Kratzer Lager- und transportpalette
JPS6391432U (fr) * 1986-12-04 1988-06-13

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH369404A (de) * 1958-12-03 1963-05-15 Grythyttans Stalmoebler Ab Ladeplatte mit lösbarer Güterstütze
ES207975U (es) 1974-11-29 1976-03-16 Combitainer Hispania Contenedor plegable.
DE7732613U1 (de) * 1977-10-22 1978-03-09 Aspa Foerdergeraete Flachpaletten-Stapelbuegel
JPS5561529U (fr) * 1978-10-23 1980-04-26
DE3015983A1 (de) 1980-04-25 1981-11-05 Gebhard 8882 Lauingen Kratzer Lager- und transportpalette
JPS6391432U (fr) * 1986-12-04 1988-06-13

Also Published As

Publication number Publication date
ES1254352U (es) 2020-10-20
ES1254352Y (es) 2021-01-11

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