WO2024184860A1

WO2024184860A1 - Packaging body with inner bars and method for assembly/disassembly of said packaging body

Info

Publication number: WO2024184860A1
Application number: PCT/IB2024/052245
Authority: WO
Inventors: Javier PALMERO; Ernesto MATEU
Original assignee: Tecnicarton S.L.
Priority date: 2023-03-09
Filing date: 2024-03-08
Publication date: 2024-09-12

Abstract

The invention relates to a packaging body (100), comprising: a quadrangular base (20); two walls (30, 32) with a horizontal folding line (34); on each side of said base other than said walls: a plinth piece (50) going vertically upwards, two lateral uprights (51, 52), a horizontal cross member (53) from one upright to another, a horizontal bar (54) from one upright to another, and a wall panel (60) located between the uprights, in a position external to said main bar with respect to the packaging body; four corner pieces (90) located in correspondence with the corners of the base; and four locking devices (31) in vertical correspondence with the corners of the base. The invention also relates to a method for disassembly of said packaging body, comprising: disengaging said locking devices, allowing said uprights to pivot towards the inside of the packaging body, causing said walls to fold towards the inside of the packaging body; and a method for assembly in the reverse order.

Description

PACKAGING BODY WITH INNER BARS AND METHOD FOR ASSEMBLY/DISASSEMBLY OF SAID PACKAGING BODY

Field of the invention

The present invention relates to a packaging body comprising at least two inner bars, which can be used to accommodate a load, and to a packaging comprising said packaging body. The present invention also relates to a method for assembly/disassembly of said packaging body. The packaging body of the present invention is especially, but not necessarily, a box body of large dimensions with plastic walls.

The present invention therefore falls within in the sector of transport, storage and/or handling of goods.

Background of the invention

In the sector there are generally prismatic, folding-type packagings, with inner bars to accommodate the load they carry. The body of these folding packagings is made up of four walls and a base, and is provided with wall locking devices to maintain the shape of the packaging body once assembled. The packaging body may be complemented with a packaging lid.

Once the packaging is assembled, its structural stability is maintained based on the rigidity of its walls, and these in turn maintain their structural stability based on the rigidity of the material from which they are made. This material can be plastic, cardboard, wood, metal or the like, although in many fields of the sector for transport, storage and/or handling of goods, the use of plastic or plastic-coated cardboard has been imposed for various reasons, including the light weight of the packaging, recyclability and ease of manufacture.

See for example document ES2850548 Al.

However, in cases where plastic or plastic-coated cardboard is used for the walls of packagings of the above type, the ability to stack packagings may be compromised. In particular, in packagings comprising a weakening line at the junction of the walls to the base, to provide the ability to fold the walls with respect to the base, for assembly and disassembly of the packaging, it is common for the packaging to eventually give way at the level of said weakening line in the event of stacking a load on the packaging.

Non-folding type packagings may include a reinforcing flap on the sides of the walls which, bent at 90° with respect to the main wall panel, is attached to the adjoining wall and provides greater structural stability to the packaging. Although this may not be sufficient, in foldingtype packagings this reinforcement flap, if it exists, cannot even be continuous, since it must disappear at the height of the aforementioned weakening line for folding, otherwise folding would not be possible. This discontinuity not only eliminates at its height the positive effect of a reinforcing flap in maintaining the structural stability of the packaging, but also has a horizontal area in which the stresses generated by the stacking of a load on the packaging can be concentrated, causing the packaging to yield.

It should be added that, in the case of large-sized bodies, in certain applications it is required for the operator to disassemble an assembled box body to be able to perform such disassembly work while at all times being located on the outside of the box body in correspondence with the same side of the box body.

Disclosure of the invention

The present invention therefore relates, in a first aspect, to a packaging body with inner bars, which in an assembled state comprises: a quadrangular base, preferably in the form of a pallet; on each of first opposite sides of said base, a wall going vertically upwards, including, from side to side, a horizontal folding line that divides it into a lower plinth portion and a main upper portion; on each of second opposite sides of said base, other than said first sides of said base:

- a plinth piece going vertically upwards, - two uprights flanking said plinth piece,

- a horizontal cross member extending from one upright to the other upright and attached to these uprights,

- a hollow horizontal main bar extending from one upright to the other upright and attached to said uprights at a height greater than that of said horizontal cross member, and

- a wall panel located in the opening created by the plinth piece and the uprights, in a position external to the main bar with respect to the packaging body; four comer pieces located in correspondence with the comers of the base, each corner piece being integrally attached to the base, to the adjacent plinth portion and to the adjacent plinth piece, and each comer piece being pivotally attached to the adjacent upright in correspondence with the end of the corresponding cross member, in such a way that the uprights, the plinth portions and the plinth pieces are arranged on the inner face of the comer pieces with respect to the packaging body and in such a manner that each of the two assemblies formed by two uprights, the cross member extending between said two uprights and the main bar extending between said two uprights is collapsible with respect to the assembly formed by the base, corner pieces, plinth portions and plinth pieces with respect to a collapse line coinciding with said cross member; and four locking devices, each one in vertical correspondence with each of the corners of the base, designed to lock the walls and uprights in a vertical position.

Optionally, the packaging body also comprises two disengagement devices, each one on each of said main bars, each of said disengagement devices comprising:

- an elongated through hole in the wall of the respective main bar,

- a pin arranged in a sliding manner inside the respective main bar in a position coaxial with same, said pin having a section with a first diameter and a section with a second diameter smaller than said first diameter, said pin extending along said elongated through hole, in correspondence with said first diameter pin section, and to an end of the respective bar, in correspondence with said second diameter pin section,

- a helical spring arranged without stress on said second diameter pin section, between the end of the second diameter pin section joined to the first diameter pin section and the free end of the second diameter pin section,

- a handle connected to or integral with said pin, accessible through said elongated through hole, and - a through hole in an upright, in correspondence with the free end of the second diameter pin section, wherein the position and dimensions of said upright through hole are such that said upright through hole allows passage therethrough of the second diameter pin section but does not allow passage of said spring.

Preferably, all the handles of the disengagement devices can be operated by an operator who is located at all times on the outside of the packaging body in correspondence with the same side of the packaging body, which will be the side of the packaging body opposite the side of the packaging body on which the packaging through holes are located.

Preferably, the wall panels are removable.

Preferably, each upright comprises at least one recess, open outwardly with respect to the packaging body.

If the wall panels are removable and each upright comprises at least one recess, open outwardly with respect to the packaging body, then the wall panels can be removed, accessories can be placed in said recess(es), for example hooks, guides or bars, typically one or more additional bars, and the wall panels can be put back in place. In this way, the inside of the packaging body can be adapted as desired, for example to accommodate the load to be transported.

Preferably, said plinth portions and said plinth pieces have the same height.

Preferably, each of the comer pieces has two wings forming an angle in correspondence with the comer of the base and a height greater than the height of the plinth portions and the plinth pieces, respectively. Alternatively, but not preferably, only two corner pieces, located in correspondence with diagonally opposite corners of the base, have said configuration.

The folding line joining the main portions of the walls to the respective plinth portions of the walls may be a weakening line, a discontinuous perforation line, or a line of any type used in the art to allow folding along that line. The present invention also relates, in a second aspect, to a packaging provided with a packaging body according to the invention and a coupled packaging lid.

Likewise, the present invention relates, in a third aspect, to a method for assembly/disassem- bly of a packaging body according to the invention.

In particular, said method for assembly/disassembly comprises: i) for disassembly, from the assembled state of the packaging body:

- disengaging said locking devices, so that said walls and said uprights are detached from one another,

- allowing said uprights to pivot towards the inside of the packaging body, by the action of gravity, with respect to the collapse lines coinciding with said cross members, together with said wall panels and said bars, until said bars are housed in the space delimited by said plinth pieces and said plinth portions,

- causing said walls to fold towards the inside of the packaging body, along the respective folding lines, until they rest on said wall panels; ii) for assembly, from the disassembled state:

- pulling the walls upwardly, so that they unfold along the respective folding lines, until the walls are in a vertical position,

- pulling said uprights, so that they pivot upwardly with respect to the collapse lines coinciding with said crossbars, together with said wall panels and said bars, until said uprights are in a vertical position,

- applying said locking devices, so that said walls and said uprights are joined together.

In the case of a packaging with a packaging body according to the invention and a coupled packaging lid: phase i) will comprise a previous step for removing said packaging lid from said packaging body in an assembled state, and optionally an added phase for placing said packaging lid on said packaging body in a disassembled state; and phase ii) will comprise a prior step for removing said packaging lid from said packaging body in a disassembled state, and optionally an added phase for placing said packaging lid on said packaging body in an assembled state.

It should be understood that terms such as “height”, “horizontal”, “vertically”, etc. are defined in relation to a packaging in the usual handling position, i.e. with its base substantially parallel to the ground and its walls supported by said base.

Brief description of the drawings

The features and advantages of the present invention will become more apparent from the following detailed description of embodiments thereof, described, by way of non-limiting example, with reference to the attached drawings, wherein:

Figure 1 is a perspective view of a packaging made up of a packaging body according to an embodiment of the invention and a packaging lid, in an assembled state,

Figure 2 is a perspective view of the packaging body of the packaging of Figure 1,

Figure 3 is an exploded perspective view, with the walls removed for clarity, of the packaging body of Figure 2,

Figure 4 is a perspective view of the packaging body of Figure 2 in a first disassembly step,

Figure 5 is a perspective view of the packaging body of Figure 2 in a second disassembly step,

Figure 6 is a perspective view of the packaging body of Figure 2 at the end of the second disassembly step,

Figure 7 is a perspective view of the packaging body of Figure 2 in a third disassembly step,

Figure 8 is a perspective view of the packaging body of Figure 2 at the end of the third disassembly step,

Figure 9 is a perspective view of the packaging of Figure 1, in the disassembled state,

Figure 10 is a perspective view of a packaging body according to a second embodiment of the invention,

Figures 11A and 1 IB are detail views of a first end of a main bar with a disengagement device, with the disengagement device in the idle state and in the actuated state respectively, Figures 12A and 12B are detail views equivalent to Figures 11A and 11B, but partially transparent, and

Figures 13A and 13B are partially transparent detail views of a second end of the main bar with the disengagement device according to Figures 10 and 11, with the disengagement device in the idle state and in the actuated state, respectively.

Parts common to more than one figure are identified with the same references in all figures.

Detailed description of embodiments of the invention

Figures 2 and 3 depict a packaging body 100 according to a first embodiment of the present invention.

Said packaging body 100 comprises a quadrangular base 20 in the form of a loading pallet.

On each of first opposite sides 22 of said base, a wall 30, 32 is arranged going vertically upwards, and each of said walls 30, 32 includes a horizontal folding line 34 extending from side to side of the wall, such that each wall 30, 32 is divided into a lower plinth portion 36 and a main upper portion 38.

In the present embodiment, each of said folding lines 34 is a weakening line, although they may be a discontinuous perforation line or a line of any type used in the art to allow folding along that line without departing from the scope of the invention.

In the present embodiment, the wall 30 comprises two vertical cuts 42 of equal length, starting from the upper edge of said wall 30, and a window folding line 44 joining the lower ends of said cuts 42. The wall 30 thereby comprises a window 40 that can swing with respect to said window folding line 44, into or out of the packaging body 100, thus reducing the effective height of the wall 30. Said window 40 can be used to facilitate access to the inside of the packaging body 100 or checking of the load being transported, for example.

On each of second opposite sides 24 of said base, the packaging body 100 comprises a plinth piece 50, two uprights 51, 52 flanking said plinth piece 50, a horizontal cross member 53 which is attached by its ends to said uprights 51, 52, and a main horizontal bar 54 which is attached by its ends to said uprights 51, 52 at a height greater than that of said cross member 53.

Said plinth portions 36 and said plinth pieces 50 have the same height, although this is not necessary.

Said cross members 53 are located adjacent to the upper edge of said plinth pieces 50, and said main bars 54 are located at the height of the upper ends of the uprights 51, 52.

Said uprights 51, 52 and said cross members 53 are high density polyethylene (HDPE) injection molded parts, rendering them pieces with high stiffness and high strength.

Said uprights 51, 52, said horizontal cross members 53 and said main bars 54 form a frame on each of said second sides 24, which provide high structural stability to the packaging body 100 when subjected to stresses resulting from stacking a packaging body on the packaging body 100 (or stacking any other type of load on the packaging body 100). Said main bars 54 can also be used to accommodate the load to be transported.

Wall panels 60 close the openings created by said plinth pieces 50 and said uprights 51, 52. Said wall panels 60 are located on the outside of said main bars 54 with respect to the packaging body 100, so that the main bars 54 remain inside the packaging body 100 to perform their function.

Each upright 51, 52 comprises a vertical groove 71, 72 along its entire height. Each pair of uprights 51, 52 flanking the same plinth piece 50 have their slots 71, 72 facing each other, and each wall panel 60 is inserted in a pair of said slots 71, 72 facing each other and is slidable along said slots 71, 72 facing each other. In addition, each upright 51, 52 comprises two bar receiving recesses 80, capable of housing the ends of additional bars 56. Each of said recesses 80 is open outwardly with respect to the packaging body through a flared channel 82, which forces the ends of the additional bars 56 to snap into the recesses 80 and become press-fitted inside said recesses 80. In this manner, said wall panels 60 can be easily removed from the openings by simply sliding them upwardly along said slots 71, 72 facing each other, additional bars 56 (two additional bars 56 are illustrated in the figures on each second side 24, but only one additional bar 56 could be arranged on each second side 24) can be arranged in said recesses 80, and said wall panels 60 can be put back in place in the openings by simply sliding them downwardly along said slots 71, 72 facing each other. In this way, the number of bars can be adapted to the desired task.

In the present embodiment, each upright 51, 52 comprises two bar receiving recesses 80. However, it is evident from the teachings of the present description that each upright may comprise a different number of recesses, either for receiving bars, or for receiving any other type of accessory. In case the recesses are intended to house additional bar ends, it is preferable that a recess located in an upright corresponds to a recess opposite same located at the same height, so that a bar can be housed horizontally in such recesses.

In the present embodiment, each upright 51, 52 is made of a single piece. However, the uprights may be modular, created from modules comprising recess(es) and/or modules comprising no recess, available at various heights. In this way, for each use of the packaging body, specific uprights can be formed, varying both the number of recesses and the height at which they are located.

The packaging body 100 also comprises a corner piece 90 at each of the corners of the base 20. Each corner piece 90 is integrally attached to the base 20, to the adjacent base portion 36 and to the adjacent plinth piece 50. In addition, each comer piece 90 is pivotally attached to the adjacent upright 51, 52, the point of attachment of the corner piece 90 to the upright 51, 52 coinciding with the corresponding end of the cross member 53. The uprights 51, 52, the plinth portions 36 and the plinth pieces 50 are arranged on the inner face of the corner pieces 90 with respect to the packaging body 100. Therefore, each of the two assemblies formed by two uprights 51, 52, the crossbar 53 extending between said two uprights 51, 52 and the main bar 54 extending between said two uprights 51, 52, carrying if applicable also the corresponding wall panel 60, is collapsible on the assembly formed by the base 20, the corner pieces 90, the plinth portions 36 and the plinth pieces 50 with respect to a collapse line coinciding with said crossbar 53.

Each of the corner pieces 90 has two wings forming an angle positioned on the corresponding corner of the base 20 and a height greater than the height of the plinth portions 36 and the plinth pieces 50, respectively. In this way, in the event that the walls 30, 32 or the uprights 51, 52 are not locked and tend to tip outwardly with respect to the packaging body 100, the vertical projection of the wings of the corner pieces 90 will retain said walls 30, 32 or the uprights 51, 52, allowing only a slight inclination.

Finally, the packaging body 100 comprises four locking devices 31, for locking the walls 30, 32 and the uprights 51, 52 in a vertical position. Said locking devices 31 are arranged in vertical correspondence with each of the comers of the base 20. Two locking devices 31 are attached to the wall 30 and two locking devices 31 are attached to the opposite wall 32. Each locking device 31 comprises a wedge-shaped portion 33 and an L-shaped portion 35, 37, which are made of a single piece. Said wedge-shaped portion 33 has a face attached to the corresponding wall 30, 32, a face at an acute angle with respect to said attached face, and a face perpendicular to said attached face. Said L-shaped portion has a first section 35 shaped like a quadrangular plate and a second section 37 shaped like a quadrangular plate, said first section 35 being attached on one side to said perpendicular face of said wedge-shaped portion 33 and on the opposite side to one side of said second section 37. Said first section 35 is attached to the corresponding wall 30, 32 and has a thickness less than the maximum thickness of said wedge-shaped portion 33. Said second section 37 projects from said first section 35 at an angle of 90 degrees over a distance greater than the maximum thickness of said wedge-shaped portion 33. Each locking device 31 is positioned such that the uprights 51, 52 are housed on the first section 35 of the L-shaped portion of the corresponding locking device 31, between the perpendicular face 37 of said wedge-shaped portion 33 of the corresponding locking device 31 and the second section 37 of the L-shaped portion of the corresponding locking device 31.

Alternatively, each locking device may comprise only the wedge portion, since the weight of the main bars 54, and optionally of the additional bars 56, and of the load suspended from the bars if applicable, will keep the uprights 51, 52 supported against the perpendicular face of said wedge-shaped portion 33, in addition to the effect of retaining the vertical projection of the wings of the corner pieces 90 described above. However, this alternative is not preferred since, at the time of assembly of the packaging body 100, the stop function of the second section 37 of the L-shaped portion of the corresponding locking device 31 will give safety and agility to the method for assembly.

According to other embodiments, not shown, the locking device may comprise a Velcrotype fastener or a magnetized fastener, or any other releasable interlocking means known in the prior art.

On the other hand, Figure 1 shows a packaging comprising a packaging body 100 and a packaging lid 200, in an assembled state, while Figure 9 shows the packaging of Figure 1 in a disassembled state.

Figure 10 depicts a packaging body 300 according to a second embodiment of the present invention.

In the present embodiment, the wall 130 comprises a window folding line 144 from one side of the wall to the other. The wall 130 thereby comprises a window 140 that can swing with respect to said window folding line 144, into or out of the packaging body 300, thus reducing the effective height of the wall 130. Said window 140 can be used to facilitate access to the inside of the packaging body 300 or checking of the load being transported, for example. Otherwise, the packaging body 300 is analogous to the packaging body 100.

Figures 4 to 8 show different moments in a method for assembly/disassembly (depending on the order in which they are described) of the packaging body 100.

First, the method for disassembly of the packaging body 100 will be described, starting from the assembled state shown in Figure 2.

However, if the packaging body 100 in the assembled state is supplemented with a packaging lid 200, according to Figure 1, a prior step will be performed in which the packaging lid 200 will be removed from the packaging body 100 in the assembled state.

Figure 4 shows the packaging body 100 in an initial disassembly phase in which the locking devices 31 have been unfolded by moving the walls 30, 32 towards the outside of the packaging body 100, so that said walls 30, 32 and said uprights 51, 52 are disengaged from one another. In this case, the disengagement consists of each of the uprights 51, 52 exiting the housing formed by the perpendicular face 37 of said wedge-shaped portion 33 of the corresponding locking device 31 and the second section 37 of the L-shaped portion of the corresponding locking device 31. For this purpose, the walls 30, 32 are moved away from the uprights 51, 52, until the uprights 51, 52 effectively exit said housing. It should be observed that, given that the comer pieces 90 have a height such that they protrude vertically upwards from the plinth portions 36 and the plinth pieces 50, the walls 30, 32 are supported at a small angle with respect to the vertical, without tipping completely out of the packaging body 100. It is noted that this effect would equally be achieved with only two comer pieces according to the present invention, provided that such corner pieces are located at diagonally opposite corners of said base 20.

In the present embodiment, each of the main bars 54 incorporates a disengagement device to cause such movement of the walls 30, 32 and thereby the disengagement of the locking devices 31. In the figures only one disengagement device is illustrated, it being understood that another similar disengagement device is located on the other main bar. The illustrated disengagement device comprises a through hole 400 in the wall of the main bar 54. The through hole 400 is elongated in the axial direction of the main bar 54. In this embodiment, the through hole 400 coincides with the end of the main bar 54, thus forming a sort of recess at the end edge of the main bar 54, but it should be understood that the through hole 400 may be located at another axial position of the main bar 54. The illustrated disengagement device also comprises a pin inserted in an axially sliding manner in the main bar 54 and having a section 406 with a first diameter and a section 408 with a second diameter smaller than said first diameter, a helical spring 402 arranged on the second diameter pin section 408, and a handle 404. The handle 404 is simply a screw screwed into a corresponding hole in the first diameter pin section 406, which protrudes through the through hole 400 so that an operator can push it in one axial direction or the other and thus cause the pin to slide within the main bar 54. Finally, the illustrated disengagement device comprises a through hole 410 in an upright 52, in correspondence with the free end of the second diameter pin section 408. The position and dimensions of said upright through hole 410 are such that said upright through hole 410 allows passage therethrough of the second diameter pin section 408 but does not allow passage therethrough of said helical spring 402.

Therefore, to reach the situation of Figure 4, the operator in charge of disassembling the packaging body 100 pulls the wall 30 towards him/her, disengaging it from the corresponding locking device 31 and actuates the disengagement device by pushing the handle 404 against the thrust of the helical spring 402, which is thereby compressed, taking the pin 406, 408 from the position of Figures 11 A, 12A and 13A to the position of Figures 1 IB, 12B and 13B, respectively, the second diameter pin section 408 projecting through the upright through hole 410 and pushing the wall 32 such that it disengages it from the corresponding locking device 31.

The operator can thereby disengage all the locking devices 31, being located at all times on the outside of the packaging body 100 in correspondence with the same side of the packaging body, in this case the side in correspondence with the wall 30.

It should be observed that, once the operator stops pushing the handle 404, the helical spring 402 will return to its idle state, returning the pin 406, 408 to a position where it does not protrude from the upright 51. This allows the packaging box to be reassembled unobstructed by the pin 406, 408.

Figures 12 and 13 show the present embodiment with the respective wall panels 60 removed, which, coupled with the larger scale of representation in these figures, makes the respective attachment tabs 501, 502 forming the slots 71, 72 of the respective uprights 51, 52 clearly visible.

In Figure 5, the uprights 51, 52 are pivoting towards the inside of the packaging body, by the action of gravity, with respect to the folding lines that coincide with the crossbars 53, together with the wall panels 60 and the bars 54, 56. In Figure 6, said uprights 51, 52 have pivoted completely until they are all coplanar, and said wall panels 60 are also coplanar with respect to one another. At this point, said bars 54, 56 have been housed in the space delimited by said plinth portions 36 and said plinth pieces 50.

Figures 7 and 8 show that said walls 30, 32 are being folded towards the inside of the packaging body 100, by the folding lines 34, the main portions 38 therefore being directed towards said wall panels 60 already collapsed. In particular, Figure 7 shows that the wall 32 has been fully folded to rest on the wall panels 60, and the wall 30 is still in an upright position awaiting folding; and Figure 8 shows that both walls 30, 32 have been fully folded to rest on the wall panels 60. It should be observed that, in this embodiment, the walls 30, 32 are of such a height that, when folded, they overlap to some extent, without this representing a problem. Of course, an embodiment in which the walls 30, 32 have a height such that, when folded, they do not overlap would likewise be within the scope of the invention.

If the packaging body 100 is supplemented with a packaging lid 200, an added step will be performed in which the packaging lid 200 will be placed on the packaging body 100 in a disassembled state, according to Figure 9.

Logically, for the assembly of the packaging body 100, starting from the disassembled state shown in Figure 8, the method will be the reverse of that described above.

However, if the packaging body 100 in the disassembled state is supplemented with a packaging lid 200, according to Figure 9, a previous step will be performed in which the packaging lid 200 will be removed from the packaging body 100 in the disassembled state.

According to Figure 7, said walls 30, 32 are first pulled upwardly, such that they will unfold along the folding lines 34, until the main portions 38 are in a vertical upright position. In particular, Figure 7 shows that the wall 30 has been fully unfolded to the vertical position while the wall 32 still rests on the wall panels 60, awaiting to be raised.

In Figure 6, both walls 30, 32 have been raised and are already positioned vertically, while the uprights 51, 52 are collapsible and coplanar with respect to one other, said wall panels 60 also being coplanar with respect to one other. At this point, the bars 54, 56 remain housed in the space delimited by the plinth portions 36 and the plinth pieces 50.

In Figure 5, the uprights 51, 52 are pivoting upwardly with respect to the collapse lines coinciding with the cross members 53, together with the wall panels 60 and the bars 54, 56.

Figure 4 shows how the uprights 51, 52 have already surpassed the wedge-shaped portions 33 of the corresponding locking devices 31 and are abutting with the second sections 37 of the L-shaped portion of the corresponding locking devices 31. For this phase it is important for said second sections 37 to project from the respective first sections 35 over a distance greater than the maximum thickness of the respective wedge-shaped portions 33, given that otherwise, during the passage of the uprights 51, 52 over the wedge-shaped portions 33, the pivoting movement of the uprights 51, 52 could be so fast that the uprights 51, 52 would skip said second sections 37, therefore without the latter performing their stop function. In other words, the stop function of the second section 37 of the L-shaped portion of the locking devices 31 brings efficiency (safety and agility) to the method for assembly and may be nullified if said second sections 37 project from the respective first sections 35 over a distance equal to or less than the maximum thickness of the respective wedge-shaped portions 33.

Once the uprights 51, 52 have surpassed the wedge-shaped portions 33, have abutted with the second sections 37 and have been housed on each first section 35, between each perpendicular face 37 and each second section 37, according to Figure 2, the packaging body 100 is assembled.

However, if the packaging body 100 in the assembled state is supplemented with a packaging lid 200, an added step will be performed in which the packaging lid 200 will be placed on the packaging body 100 in the disassembled state, according to Figure 1.

Of course, in keeping with the principle of the present invention, the embodiments and details of construction may widely vary from that described and illustrated herein without departing from the scope of the present invention.

Claims

1. A packaging body with inner bars, comprising: a quadrangular base; on each of first opposite sides of said base, a wall going vertically upwards, including, from side to side, a horizontal folding line dividing said wall into a lower plinth portion and a main upper portion; characterized in that it further comprises: on each of second opposite sides of said base, other than said first sides of said base:

- a plinth piece going vertically upwards,

- two uprights flanking said plinth piece,

- a horizontal cross member extending from one upright to the other upright and attached to said uprights,

- a main horizontal bar extending from one upright to the other upright and attached to said uprights at a height greater than that of said horizontal cross member, and

- a wall panel located in the opening created by the plinth piece and the uprights, in a position external to said main bar with respect to the packaging body; four comer pieces located in correspondence with the comers of the base, each corner piece being integrally attached to the base, to the adjacent plinth portion and to the adjacent plinth piece, and each comer piece being pivotally attached to the adjacent upright in correspondence with the end of the corresponding cross member, in such a way that the uprights, the plinth portions and the plinth pieces are arranged on the inner face of the comer pieces with respect to the packaging body and in such a manner that each of the two assemblies formed by two uprights, the cross member extending between said two uprights and the main bar extending between said two uprights is collapsible with respect to the assembly formed by the base, corner pieces, plinth portions and plinth pieces with respect to a collapse line coinciding with said cross member; and four locking devices, each one in vertical correspondence with each of the corners of the base, designed to lock the walls and uprights in a vertical position.

2. The packaging body according to claim 1, characterized in that it also comprises two disengagement devices, each one on each of said main bars, each of said disengagement devices comprising:

- an elongated through hole in the wall of the respective main bar,

- a handle connected to or integral with said pin, accessible through said elongated through hole, and

- a through hole in an upright, in correspondence with the free end of the second diameter pin section, wherein the position and dimensions of said upright through hole are such that said upright through hole allows passage therethrough of the second diameter pin section but does not allow passage of said spring.

3. The packaging body according to claim 2, characterized in that all the handles of the disengagement devices can be operated by an operator who is located at all times on the outside of the packaging body in correspondence with the same side of the packaging body, which is the side of the packaging body opposite the side of the packaging body on which the packaging through holes are located.

4. The packaging body according to any one of the preceding claims, characterized in that said base is a pallet.

5. The packaging body according to any one of the preceding claims, characterized in that the wall panels are removable.

6. The packaging body according to any one of the preceding claims, characterized in that each upright comprises at least one accessory receiving recess.

7. The packaging body according to claim 6, characterized in that said recesses are open outwardly with respect to the packaging body.

8. The packaging body according to any one of the preceding claims, characterized in that said uprights are made of a single piece.

9. The packaging body according to any one of claims 1 to 7, characterized in that at least one of said uprights is made up of modules.

10. The packaging body according to any one of claims 1 to 7, characterized in that at least one of said uprights is made up of modules comprising at least one of said accessory receiving recesses and/or modules comprising no accessory receiving recesses.

11. The packaging body according to any one of claims 9 or 10, characterized in that all modules have the same height or not all modules have the same height.

12. The packaging body according to any one of the preceding claims, characterized in that said plinth portions and said plinth pieces have the same height.

13. The packaging body according to any one of the preceding claims, characterized in that each of the corner pieces has two wings forming an angle in correspondence with the corner of the base and a height greater than the height of the plinth portions and the plinth pieces, respectively.

14. The packaging body according to any one of the preceding claims, characterized in that each pair of uprights flanking the same plinth piece each comprise a vertical groove, facing each other, and the corresponding wall panel has a horizontal dimension such that it is inserted in said grooves of the uprights.

15. A method for disassembly of a packaging body according to claim 1, from the assembled state of said packaging body, characterized in that it comprises:

- providing a packaging body according to any one of the preceding claims, - disengaging said locking devices, so that said walls and said uprights are detached from one another,

- causing said walls to fold towards the inside of the packaging body, along the respective folding lines, until they rest on said wall panels.

16. The method for disassembly of a packaging body according to any one of claims 2 to 14, from the assembled state of said packaging body, characterized in that it comprises:

- providing a packaging body according to any one of the preceding claims,

- disengaging said locking devices, so that said walls and said uprights are detached from one another, by means of said disengagement means,

17. A method for assembly of a packaging body from the disassembled state of said packaging body, characterized in that it comprises:

- providing a disassembled packaging body according to the preceding claim,

- pulling the walls upwardly, so that they unfold along the respective folding lines, until said walls are in a vertical position,