RU2603557C2 - Angular pad for receiving walls of protective frame and folding protective frame, which can be assembled and disassembled - Google Patents

Abstract

FIELD: manufacturing technology.

SUBSTANCE: polygonal protective frame with several sides contains side walls, each of which has near at least one upper or lower edge of each side an end section, which comprises a plate and an adjacent post located in fact perpendicular to each other, and several pairs of angle pads. Each angular pad has in each corner of the protective frame a top angular strap and a lower angular strap. Each of these straps has cavities oriented in two directions. Each cavity is limited by at least one outer side partition and one inner side partition and receives along each of two outer side partitions, respectively, posts and adjacent plates. Polygonal protective frame additionally contains elements under tension, each of which tightens together closer to each other angular pads of each pair for pulling them to each other. Each angular pad comprises an outer process located in the corner of the angular pad to accommodate an expansion element.

EFFECT: invention provides disassembling and assembling of the frame providing it with rigidity and strength.

9 cl, 77 dwg

Description

This invention relates to an angular element, commonly referred to as a “connecting elbow” or “corner pad”, for assembling the side walls of the protective frame, and more specifically, the trellised container, i.e. one in which the walls consist of spaced planks.

The invention also relates to a device and method for assembling such a protective frame containing corner pads.

Finally, this invention also relates to a protective frame that can be assembled and disassembled thanks to such an assembly device.

"Protective frame" means any container or container containing at least two adjacent walls and intended to contain an item.

Typically, the assembly of various walls of the protective frame requires the use of fasteners in the form of nails, glue or screws.

This assembly method has various disadvantages. For example, if the walls are not properly assembled, it is very difficult and even impossible to separate them without damaging the sections of the walls in order to reassemble them.

For example, patent FR2805521 is known in which a protective frame is disclosed comprising a pair of corner plates (upper corner plate and lower corner plate) for assembly with the possibility of disassembling two adjacent walls of the protective frame. However, a device of this type for assembly, in General, requires the use of additional means of fastening to maintain the corner pads in position, when the protective frame is assembled.

The aim of the invention is to provide an assembly system that makes installation easier, i.e. assembly and disassembly of the protective frame, and gives stability and rigidity to the protective frame. In addition, the corner pads must be operable without the use of additional means for fixing. At the same time, a quick assembly and disassembly of the protective frame within a few minutes is possible.

Another objective of this invention is to provide a guarantee of the integrity of the device, i.e. protective frame after installation, and the safety of the protective frame (lack of access to the contents).

Another problem posed here relates to the strength of the device and even the assembled protective frame and, in addition, the maintenance of the assembled corner pads with the protective frame.

The resulting problem relates to the speed of installation and / or removal of the corner pads from the assembled protective frame, in addition to the clearance adjustment possibly required in the protective frame, especially in height.

For this purpose, an angled pad is proposed for assembling a protective frame without the obligatory use of tools. Each corner pad has cavities oriented in two intersecting directions and configured to receive the walls of the protective frame with the possibility of assembly with which the corner fastening pad is made, each cavity being bounded by the outer side wall (edge wall) and the inner side wall of the corner pad. For clarity, later in this document, the various walls of the corner lining are referred to as "partitions" so as not to confuse them with the walls of the protective frame. The corner plate also has at least one protrusion provided with a transverse retaining portion, the protrusion being adapted to be connected into a groove made in the wall of the protective frame, more preferably parallel to the wall edge, and held therein by supporting its transverse portion.

This shape of the protrusion provided with a transverse holding section, more preferably flat and thin, parallel to the edges of the (lower or upper) wall of the protective frame, provides the maneuverability of the corner pads.

A groove, such as the one in question, may have an open or closed loop.

For example, the wall of the protective frame is usually made using trims, for example, a lower truss, an upper truss and two side trims (one right and one left), called “uprights”.

Upper, lower, right and left means the installation in the right place of the objects in question when the protective frame is assembled according to the invention.

Essentially, according to the first example, the groove can only be made in the lower edge of the upper wall strip, and such a groove, therefore, has an open contour. In this case, the transverse retaining portion of the protrusion is connected under the upper bar.

Essentially, it is not necessary to make the grooves, both horizontal and vertical, in the walls of the protective frame in order to be able to fix the corner lining.

According to a second example, a groove, such as the one under consideration, may be a casing of certain sizes, made in the upper wall strip, such a groove, therefore, has a closed circuit.

The same applies to the lower bar.

Essentially, no nails or tools are required to assemble the protective frame.

More preferably, each groove of the walls of the protective frame should be made according to the shape and location of the protrusion of the corner fastening lining, which the groove should take.

Typically, two external connecting partitions of the corner lining form a 90 ° angle between them. However, this angle can vary to adapt to the type of protective frame that you want to assemble.

More preferably, the protrusion provided with its transverse retaining portion forms an elastically deformable retainer. The resilient design of the protrusion thus makes it possible to insert it into the groove and to remove it from the groove without damaging the corner bonding pad or the protective frame.

More preferably, the transverse holding portion of the protrusion has an asymmetric shape, for example, the shape of a knife blade to facilitate insertion of the protrusion into the groove and / or extraction of the protrusion from the groove.

More preferably, the protrusion has a substantially engaging portion, for example, an opening, which can be used to insert a tool into it to facilitate detachment of the protrusion from the corresponding groove.

According to a preferred embodiment, each outer side wall has at least one protrusion, wherein each protrusion is adapted to interact with a corresponding groove in the wall for forming the protective frame. The presence of protrusions only on the outer side partitions of the corner pads makes it possible to substantially facilitate disassembly of the protective frame.

According to another preferred embodiment, each inner partition has at least one protrusion, each protrusion being configured to interact with another corresponding groove located, more preferably, on the inner surface of the walls intended to form the protective frame. Preferably, the grooves of the walls of the protective frame for receiving the protrusions of the inner side partitions can pass through. At the same time, during disassembly of the protective frame, it is possible to enter the tool into the groove to push the protrusion backward inward towards the protective frame to remove it and there is the possibility of removing the corner lining.

Therefore, in the case where the corner patch has protrusions on both the inner side partitions and the outer side partitions, the protrusions of the inner side partitions are preferably longer than the protrusions of the outer side partitions, so that the latter do not interfere with the grooves of the protrusions of the inner side partitions.

Preferably, the corner pad comprises a transverse baffle, and more preferably orthogonal to the inner and outer side baffles, forming the abutment surface of the base.

In this case, when the transverse partition is the upper partition, the corner plate forms the upper corner plate, and the protrusions, at the same time, are located at the lower ends of the corresponding side partitions. When the transverse baffle is a lower baffle, the corner pad forms the bottom corner pad, and the protrusions, at the same time, are located at the upper ends of the respective side partitions.

Preferably, the transverse partition has a guide wall serving as a lateral supporting surface of an element (for example, another protective frame), which must be mounted on the protective frame, for wedging during installation. More preferably, the guide wall is installed in the continuation of the outer side partitions of the corner lining.

These guide walls are preferably located on the upper corner plate and can have an expanded shape to facilitate installation on top of another element on the protective frame. This is used, in particular, to enhance the support in the desired position of this other stackable element.

The corner fastening pad may also have a variety of other differences. For example:

- The transverse partition may have a perforated section, for example, with an opening, which can provide the input tool, made with the possibility of engagement of the engagement of the inner protrusion to carry out its extraction from the groove.

- The upper corner pad may have anti-skid teeth on the upper surface of its transverse baffle, also to enhance retention in place of another stacked on top element, for example, another protective frame. These teeth are more preferably pointed in shape, with such a narrowing that an element stacked on top can be fixed to them.

- The lower corner pad may have, on the lower surface of its transverse partition, means for securing the protective frame to a support member, for example, a cargo pallet. This fixing means may also be teeth or retainers, or any other mechanical engagement system, and also even a chemical means such as glue.

According to another aspect of the invention, a polygonal protective frame is provided, comprising:

- walls, where each wall has at least one groove,

- and several corner pads,

where at least one of the corner pads refers to the type of pads described above.

More preferably, all used upper corner pads are identical, and all used lower corner pads are identical. In addition, the number of upper corner pads is equal to the number of lower corner pads. In addition, it is also possible to have upper corner pads identical to lower corner pads.

According to a preferred embodiment, the protective frame comprises a covering element configured to cover the upper opening formed by the walls of the protective frame on top of the protective frame.

Preferably, the upper corner pads cover the covering element at the corners of the protective frame. This type of configuration makes it possible to seal the protective frame, which cannot be opened accidentally. The covering element can be removed when disassembling the protective frame.

According to another preferred embodiment, the protective frame comprises a cargo pallet on which the walls are mounted.

Preferably, the lower corner pads are secured to the cargo pallet from above.

To install the walls of the protective frame are moved between the rails in the lower corner pads, equipped with protrusions, which due to elastic deformation slip into the corresponding grooves of the walls.

The upper corner pads are slid downward on the upper ends of the walls of the protective frame with the pressure applied to each corner plate until the tabs snap into place in the corresponding grooves.

Then fixing the covering element is possible.

Disassembly is performed using two movements:

- More preferably, first, the inner protrusions of the upper corner pads are removed from their respective grooves, if these internal protrusions exist:

- If the protective frame is covered by a covering element that cannot be removed independently of the upper corner pads, the inner protrusions must be removed from the upper corner fastening pads by introducing an object, for example, about 7 cm long and 7 mm maximum in diameter, such as a screwdriver, in each groove (which should be made with the possibility of a through passage), and the protrusions should go out of their casing with moving inward the protective frame.

- If the protective frame is not covered by the covering element or if the covering element is removable, the inner protrusions should be slightly separated from the upper corner fastening plates to ensure their exit from their casing and by pulling the corner plate up.

Preferably, the protrusions have a cutout used as an engagement portion, for example an opening into which a tool can be inserted to facilitate detachment of the protrusion.

The tool can be inserted through the perforated portions of the transverse septum of the upper corner pads to capture these portions of the engagement of the inner protrusions.

Two methods can also be performed simultaneously, if required, i.e. insert the tool into the grooves to push the protrusions inward, and at the same time insert another tool into the engagement areas.

- Then, the ends of the protrusions should be separated from the outer side partitions to ensure they exit the casing and pull the corner lining up.

In the case where the corner pads have only external protrusions, only this second step is required.

In this case, the internal protrusions may have a geometry that provides them with increased elasticity to facilitate disassembly.

A similar approach is used to dismantle the lower corner pads.

Another solution to at least some of the problems arises is an assembly device comprising a pair of corner plates and a tensile element connecting the corner plates of the pair to each other to attract them to each other.

The at least partial solution proposed here is that the tensile member comprises an elastic member.

More preferably, each corner pad has an outer process in the corner, i.e. a protrusion for installing an elastic element on it, for which this process is equipped with a retaining edge.

At the same time, installation in place and removal are quick and easy.

According to a first embodiment, the tensile element comprises an elongated rigid rod structure resting on opposite ends on the corner fastening pads of the pair to attract them to each other.

This results in strength and stiffness of retention.

More preferably, each corner fastener plate should thus have a through channel extending along the direction in which the elongated rigid bar structure connecting the pair of corner beads in question passes, and the bar structure on the side wall of the channel should be supported by a length adjusting means.

Also considered is a polygonal protective frame containing:

- side walls, each having near the at least one upper or lower edge of each side an extreme portion containing here a bar and an adjacent rack located essentially perpendicular to each other,

- and several pairs of corner plates, which, along each of their two outer side walls, respectively, take up racks and adjacent slats, moreover, these pairs of corner plates are each equipped with a tensile element of the assembly device described hereinabove.

To protect and preserve the contents and hold the corner pads in the assembled protective frame, the protective frame preferably comprises a covering element configured to cover the upper opening formed by the side walls on top of the protective frame, and an upper corner fastening pad of each pair of corner fastening pads covers the covering element at the corner of the protective frame.

For the same purpose and for movement, it is provided that the protective frame may include a cargo pallet on which the side walls are located, with each lower corner plate of a pair of corner plates being attached to the cargo pallet from above.

For the purpose of quick and convenient installation and removal, as well as obtaining free internal volumes for loading, it is recommended that the tensile element or each element outside the corners of the protective frame be located.

For stability and sufficient mechanical strength of the protective frame, it is recommended to install in each corner element inside between each outer side partition and the inside partition (inside the side partitions), at a distance essentially parallel to the partition, along which at least one polygonal support with a cross section greater than the thickness of the partition is located located in the cavity between the inner side wall and the external side wall to limit:

- the first volume into which the rack of the side wall of the protective frame under consideration is received, which is essentially pressed against the inner side wall, and

- a second adjacent volume into which an adjacent bar is received, which is essentially pressed against the outer side wall.

In this case, it is not necessary to make cuts in the planks under consideration, in contrast to the solution FR 2805521, where the partitions form transverse structures relative to the cavity in which, in addition, they limit the volume. At the same time, the interaction between the cutouts in the walls of the protective frame and the transverse reinforcing parts in the corner pads can contribute to better holding the corner pads and walls in the desired position.

For the strength and stability of the device equipped with these corner plates, it is recommended that the internal side partitions be connected to each other near the first corner of each corner plate in place of the angle from which the connecting and supporting partition for the walls of the protective frame are connected to a polygonal corner support located close to the outer side the wall.

In order to obtain a free internal volume for loading the protective frames, it is recommended that the base of each corner element is essentially triangular in shape and located on the side where the partitions are located and in the area located outside of the first and second volumes, free of any completed structure having a height of more than a quarter of the height partitions.

In order to facilitate stacking of the protective frames, it is also recommended to limit the surface opposite to where the side partitions rise, the bases of the corner plates with supporting walls that converge to the first corner, and wedging in the corners of the protective frames placed on top.

In addition, the maneuvers of these protective frames must be further facilitated if each supporting wall is extended by a guiding edge inclined outward and to a height less than the height of the supporting wall.

For stability, it is recommended that the supporting walls continue the outer side partitions, to the outer edge of the corner plates on the surface opposite the base.

For the same purpose, it is recommended that the truncated first corner of the corner pads and the corner pads themselves be made without a guiding edge and / or the connection of the support walls in the corner with a corner wall of reduced height.

To solve at least some of the aforementioned problems, an angular patch is additionally proposed having cavities oriented in two directions and configured to receive walls of the protective frame with which the angular is assembled, each cavity being bounded by at least one outer side wall and one inner side the partition, and the corner plate additionally has a process, a protrusion, provided with a retaining edge on the outside, for engaging with it a tensile element, d barking possible convergence with each other two corner fittings of this type.

"Outer" means that the appendix is located on the visible surface when the corner pad is assembled with the walls of the protective frame, for example. Preferably, this process is located at the intersection of the outer side walls in the corner that they form.

More preferably, there is also a protrusion provided with transverse holding portions, the protrusion being adapted to be connected in a groove parallel to the wall edge of the protective frame and held therein by the abutment surface of the transverse portion, the protrusion and its transverse holding portion essentially forming a fixing clip.

“Transverse” here means that the actually holding portion extends in an intersecting direction, even orthogonal to the protrusion direction.

In this case, the use of corner pads having together an external process provided with a retaining flange and at least one fixing clip makes it possible to quickly and easily assemble and disassemble the protective frame that does not require special tools. When the protective frame is disassembled and folded, it becomes transportable, and all the elements that the frame contains are assembled and held together. The presence of the latch is not absolutely necessary when the protective frame is complex, but it becomes very useful when it is mounted, for structural strength and for safety requirements, in particular, if the tensile element fails, for example, if the tensile element breaks. In addition, when the protective frame is mounted, the joint presence of retainers and processes, with which the tensile elements are engaged, makes it possible to strengthen the protective frame, and guarantees a very simple exposure during installation, i.e. such that the side walls of the protective frame stand exactly, for example. This makes it possible, in particular, when stacking several protective frames, ensuring the horizontal position of the covering element (if the protective frame is equipped with a covering element); while the stack of protective frames becomes more stable.

Preferably, the transverse holding portion of one of the protrusions has an asymmetric shape, for example, the shape of a knife blade, which facilitates the insertion and removal of the protrusion to secure the corner lining and remove it if necessary.

According to a preferred embodiment, in particular in the case where the protrusion in question is an internal protrusion, i.e. integral with the internal partition, at least one of the protrusions has an engagement portion.

According to another preferred embodiment, the outer side wall of the at least one orientable cavity of the corner pad has at least one protrusion, and the inner side wall of the same orientable cavity has at least one protrusion, the protrusion of the inner side wall being longer than the protrusion of the external side wall.

More preferably, each of the two outer side partitions has a protrusion. This embodiment makes it possible in essence the simplest implementation.

According to another embodiment, each of the two inner side partitions has a protrusion. If the protrusions are only on the internal partitions, this makes it possible to make an angular lining, the removal of which is more difficult, which guarantees better integrity of the contents.

If the protrusions are on the internal partitions in addition to the protrusions on the external partitions, then the benefits are combined. In this latter case, preferably, the protrusions of the inner side walls are longer than the protrusions of the outer side walls. Indeed, as mentioned above in this document, this makes it possible to disconnect, optionally, the internal or external protrusions first, while the grooves of the internal protrusions must be made through with the possibility of a through passage in them.

More preferably, the corner pad according to the invention comprises a base partition transverse to the inner and outer side partitions to form a support surface of the base.

According to a preferred embodiment, and it is further preferred that the corner plate comprises internal protrusions provided with an engagement portion, the base wall having a perforated portion.

According to another preferred embodiment, each cavity has at least one transverse reinforcing part on at least one of the inner and outer side partitions, configured to interact with a groove orthogonal to the edges of the walls, which can pass through to allow relative installation of the side wall of the protective frame and corner lining. More preferably, each transverse reinforcing member is orthogonal to at least one of the partitions, which makes it possible to produce an angular patch using injection molding that does not require machining. The transverse reinforcing part and the orthogonal groove have, however, a complementary orientation, making it possible to insert the reinforcing part into the groove.

These transverse reinforcing details make it possible to give rigidity to some sections of the structure. Parts are made with a profile that, despite their presence, provides sufficient flexibility to the corner pad to facilitate insertion or extraction of the protrusions. It also requires the implementation of openings and vertical grooves in the walls of the protective frame, with the possibility of receiving data transverse reinforcing parts. They additionally make it possible also to ensure that the corner lining is installed in the right place.

In addition, preferably the corner plate has at least one rib configured to be sunk into the wall for wedging with compensation for possible gaps. This rib has, more preferably, a tapering shape for more successful recession into the wall during insertion of the corner patch.

This invention also relates to a device for assembling a protective frame containing side walls, and containing at least a first and a second corner pads, such as described above in this document, and a tensile element configured to connect to each other of the first and second corner overlays when coupling with their external shoots.

More preferably, the tensile member comprises an elastic member that makes it possible to connect the first and second corner pads using their outer process.

Finally, the present invention further relates to an assembled protective frame that can be disassembled, comprising at least one side wall, and the following constituent elements configured to be assembled and disassembled, i.e. made with the possibility of separation to disassemble the protective frame into parts:

at least one assembly device, such as described above in this document,

- at least one third and one fourth corner fastening pads, such as described above in this document, while the side walls of the protective frame are assembled using corner pads, and

- a cargo pallet forming the bottom of the base of the protective frame.

The protective frame is essentially devoid of any other retention means for assembling the protective frame as a single unit.

According to a preferred embodiment, the first and second corner pads form the lower corner pads mounted on the cargo pallet at two adjacent corners of the cargo pallet, the third and fourth corner pads form the upper corner pads, the side wall is assembled using two lower corner pads and two upper corner pads , and a tensile element connecting the first, second, third and fourth corner pads. Moreover, for fastening and fixing the assembly of the protective frame, only two connecting rods are required. In addition, if the protective frame is rectangular, i.e. if it contains four walls, of which two opposite walls are longer than the other two, preferably the connecting rods connect four corner pads located at the four corners of the longest walls, so that the tension in the connecting rods becomes greater. In this case, the assembly is more durable.

Preferably, at least two corner pads are fixedly attached to the cargo pallet, for example, with nails, glue, or clips. The fastening of the corner pads to the cargo pallet makes it possible, in particular, to limit the number of operations carried out during the assembly or disassembly of the protective frame.

Preferably, the wall of the protective frame has at least one orthogonal groove at the edge of the side wall and with the possibility of a through passage through it. While the wall is made with the possibility of receiving a transverse reinforcing parts on at least one of the inner and outer side partitions, when the corner plate is provided with them.

More preferably, the wall of the protective frame comprises at least one groove parallel to the edge of the side wall for receiving the transverse holding portion of the protrusion. If there is no horizontal groove, then the corner pad must be dimensioned so that the transverse retaining portion is clamped under the bar that makes up the wall.

Preferably, the protective frame, which contains several side walls, comprises a covering element configured to cover the upper opening, which the side walls of the protective frame form between them. The presence of a coating element is preferred for protecting and isolating the contents of the protective frame when the latter is full.

Finally, this invention relates to a protective frame, which is disassembled into parts and which can be assembled, containing at least one side wall and the following constituent elements, made with the possibility of Assembly and disassembly, i.e. made with the possibility of separation for the assembly of the protective frame:

at least one assembly device, such as described above in this document,

- at least one third and one fourth of the corner pads, such as described above in this document, and

- a cargo pallet forming the bottom of the base of the protective frame,

and a packaging device, such that the first and second corner pads form the lower corner pads mounted on the cargo pallet, the third and fourth corner pads, form the upper corner fastening pads installed on the cargo pallet at least one side wall designed to form a protective the carcass is laid flat on a cargo pallet, more preferably over the corner pads, and the tensile element connects the first and second corner pads together.

Preferably, the two lower corner pads mounted on the cargo pallet are secured to two corners of the cargo pallet that are not adjacent, for example, diagonally opposed to a square or rectangular cargo pallet, which makes it possible to attach the connecting rods crosswise to provide better retention of all elements together.

Essentially, for a four-wall enclosure, two tie rods are required. Each connecting rod connects the two lower corner pads, mounted on the cargo pallet, using their appendage. The connecting rods intersect, which makes it possible to hold together all the elements when the protective frame is disassembled into parts.

Preferably, the four side walls of the protective frame are laid flat and crosswise on the cargo pallet, i.e. crosswise in pairs, more preferably above the upper corner pads, which can be detached in advance to hold them in place.

The joint work of these various elements makes it possible to obtain a device for packaging the protective frame, ensuring its installation in less than 2 minutes.

In addition, such a device facilitates the reuse of elements and, for example, loads of protective frames.

The invention according to the preferred embodiment should be well understood and its advantages should be clear after reading the following detailed description, which is for information only and is in no way limiting, with reference to the accompanying drawings, where:

Figure 1 shows an example of a protective frame that can be assembled using corner pads.

FIG. 2 shows an exploded view of a protective frame according to an embodiment, where the corner pads include fixing clips and guide walls.

Fig. 3a) shows a perspective view of an assembled protective frame according to an embodiment in which the upper corner pads have latches and guide walls, and Fig. 3b) shows a perspective view of an assembled protective frame according to an embodiment where the upper corner pads have latches, but do not have guide walls.

Figures 4a) -4d) show details of fragments I-III and III '.

Figure 5 shows a profile view of an assembled safety cage according to an embodiment in which the corner pads include retainers and guide walls.

Figure 6 shows a section A-A in Figure 5.

Figure 7 shows a section B-B in Figure 5.

On figa) are shown with increasing detail of fragment IV.

On fig.8b) isometric fragment IV is shown.

On Figa) are shown with increasing detail of fragment V.

Fig. 9b) shows a perspective fragment V.

Fig. 10a) shows a stack of two protective frames according to an embodiment of the invention, where the corner pads include fixing clips and guide walls; 10b) are shown with increasing detail of fragment VI, and FIG. 10c) are shown with increasing detail of fragment VII.

11 shows a first example of an embodiment of an angular lining configured to be used as a lower or upper angular lining.

On Fig shows a second example of an embodiment of the upper corner lining.

On Fig shows a third example of an embodiment of a corner lining, made with the possibility of use as the lower or upper corner lining.

On figa) shows in perspective a protective frame according to a variant implementation, in which the tabs of the latches of the corner pads are clamped on the strips that make up the walls of the protective frame, on fig.14b) are shown with increasing detail of fragment VIII, and Fig.14c) are shown with increasing details of fragment IX.

On Fig shows a fourth example of a variant of execution of the corner lining, made with the possibility of use as the lower or upper corner lining, which has internal latches made with the possibility of being clamped on the wall strip of the protective frame.

On Fig shows a fifth embodiment of the upper corner lining, which has only internal latches made with the possibility of being clamped on the wall strip of the protective frame.

On Fig additionally shows a sixth embodiment of the lower or upper corner lining, which has only external latches made with the possibility of being clamped on the wall strip of the protective frame.

FIGS. 18 and 19 show a pair of corner pads made with a connecting rod in FIG. 18 a) and 18 b) show a top view and a profile view of the top corner pads, and FIG. 19 a) 19 b) show a top view and a profile view of the lower corner lining.

On figa) shows a protective frame assembled using devices containing a pair of corner pads and an elastic connecting rod in Fig.20b) -20d) are shown with increasing fragments X, XI and XII.

On figa) shows a protective frame Fig.20a) in disassembled form, and on fig.21b) shows a cross section and a top view of the lower corner lining with the side walls of the assembled protective frame.

On figa) shows two stacked protective frames, and Fig.22b) and 22c) are shown with an increase of fragments XIII and XIV.

On Fig shown in profile a protective frame assembled using devices containing a pair of corner pads and an elastic connecting rod.

On Fig shows the protective frame according to Fig in disassembled form.

25 shows stacking of two protective frames assembled by means of devices comprising a pair of corner plates and a rigid connecting rod (i.e., a rigid rod structure).

On Fig shows the protective frame according to Fig in disassembled form.

On Fig shows a rigid rod structure, made with the possibility of use as a connecting rod.

FIGS. 28-31 additionally show another example of an embodiment of an angular lining configured to be used as the lower and upper angular lining, in various forms, comprising external retainers and tapering ribs.

32-35, finally, shows the various states of the protective frame, which can be assembled and disassembled with the help of corner pads containing clamps, tapering ribs and an external process provided with a lip for engaging in it a tensile element for connecting the corner pads to each other with another elastic connecting rod.

Identical elements in FIGS. 1-35 are indicated by the same reference numbers.

A protective frame, such as shown, is polygonal, more preferably with four sides. The frame comprises four side walls 3, a cargo pallet 5 and a covering element 4, these various elements being connected to each other by means of four upper corner plates 1 and four lower corner plates 2. Essentially, the upper corner plate 1 and the lower corner plate 2 can make a pair of corner overlays. The protective frame is, for example, rectangular, two walls 3 are longer than the other two, perpendicular to them.

Preferably, a covering element 4 is provided for closing the upper opening formed between the side walls 3 on top of the protective frame. The upper corner fastening plate 1 of each pair of corner plates covers this covering element at the corner of the protective frame, while ensuring its retention. Thus, conventional constriction strips are eliminated.

The carcass shown in FIG. 1 is in an assembled configuration, ready to receive one or more items in its internal volume bounded by side walls 3 located on the cargo pallet 5, with the upper 1 corner plate or lower on each corner of the latter 2 corner pad.

According to this example, the walls 3 are made of wooden planks. However, all forms and materials are suitable in this case.

Likewise, a cargo pallet 5 is typically an element made of wood, but any type of base or support adapted to receive a protective frame may be suitable.

The cargo pallet 5 may include a system of legs containing a series of legs (not shown) that separate the cargo pallet from the ground or several (here three) racks 51 on which a horizontal part 52 is mounted on top, adapted to the shape defined by the walls 3.

Here, the horizontal part 52 is a rectangle and forms the base, more preferably solid and flat, for the protective frame. Each side wall 3 here has the form of a wall of a trellised container. Each side wall 3 contains several (here three) strips 32 extending horizontally and installed one above the other with a gap, and several (here two) vertical racks 33 connecting together the lateral ends of the strips 32.

The strips 32 and corresponding adjacent posts 33 are perpendicular to each other on each side of the protective frame. They can be made of wood and fastened together, for example, with nails. As shown, the struts 33, a priori, are all identical, have a rectangular or trapezoidal section and are located inside the protective frame with respect to the strips 32.

On each side wall 3 of the strut 33 extend from the lower edge 321 of the lower bar 32 to the upper edge 322 of the upper bar 32.

Therefore, at the location of the lowermost wall portion, the lower edge of each side wall 3 is formed by the lower edge 321 of the corresponding lower strip 32 and the lower ends of the respective struts 33. In addition, this lower edge is essentially straight along the entire length of the side wall 3 under consideration, which does not have in particular, the protruding down section.

On the opposite side, in place of the extreme upper portion, the upper edge of each side wall 3 is formed by the corresponding upper edge 322 of the upper slats 32 and the upper ends of the uprights 33. This upper end also extends substantially directly along the side wall 3 without an upwardly extending portion.

More preferably, the protective frame is assembled using a set of upper corner pads 1, which are all identical, and a set of lower corner pads 2, which are all identical. The upper 1 and lower 2 corner pads can also all be identical, but not necessary. The lower corner pads 2 and the upper corner pads 1 may themselves be different. Moreover, the upper corner pads 1 may or may not have guide walls 14, for example.

Each corner pad (1, 2) should preferably be a monoblock, i.e. one piece and made of plastic, such as polypropylene and, for example, die-cast.

However, there are various alternatives for making the upper corner lining 1 or the lower corner lining 2.

According to a preferred embodiment, the walls have at least one groove 3 configured to receive the protrusion (111, 121, 211, 221) of the corner lining (1, 2), when these protrusions are not long enough and can be clamped on the strips of the protective frame , eg.

Regardless of the embodiment, the upper corner plate 1 has cavities 15 oriented in two intersecting directions and configured to receive the walls of the protective frame 3 under consideration during assembly using the corner plate 1. Each cavity 15 is open at least on one side and is limited to two other sides of the outer side wall 11 and the inner side wall 12.

For reception with wedging of the considered side wall 3 of the protective frame, each partition 11 of the considered corner lining 1 is covered from the inside at a certain distance by the inner side partition 12, located essentially parallel to it.

These outer side walls 11 converge to the first corner 18 of the corner lining.

Here, the angle 18 is a right angle, more preferably with a truncated apex.

The upper corner pads 1 may also have various structural reinforcing elements 16, common in the art. Reinforcing parts 16 also ensure proper installation of the considered wall 3 of the protective frame during assembly using the corner lining 1.

The structural reinforcing elements 16 preferably consist of polygonal supports located close to the inner side wall 12. These supports are a priori identical. Rectangular supports are more preferred. They are used as a reinforcing part and to limit the cavity 15, for receiving the walls of the protective frame located close to them (and wedging). Their cross section is approximately half the width "l" of the cavity 15, to limit the two cavities located between the considered inner side wall 12 and the outer side wall 11, along which it rises.

In this case, two adjacent and interconnected volumes make it possible to receive the planks 32 and racks 33 under consideration. Preferably, the supporting surfaces are perpendicular to each other.

The supports 16 thus limit the first volume longitudinally, pressing the considered strut 33 into it. These supports 16 are located here at the end of these volumes, opposite the first corner 18. At this end, the second volume is opened at position 150.

At its end near the angle 18 and, therefore, opposite to the position 150, where it is open, this second cavity is preferably bounded by a partition 114 and an axially extending portion 124 extending the partition 12. In this case, partitions 114 can be considered limiting the angular support 181.

Each upper corner fastening pad 1 has, more preferably a partition 13 extending across the inner side partition 12 and the outer side partition 11, forming a supporting surface of the base. The base 13 is preferably a solid plate, but may include perforated zones.

Moreover, along each outer side wall 11, and as a support on the base 13, it should be possible to receive, essentially parallel to this partition 11, the side wall 3 of the protective frame. In the shown embodiment, the support is the extreme portion of one of these side walls 3, which contains here made essentially perpendicular to each other, strips 32 and the corresponding adjacent rack 33.

More preferably, the upper surface of the transverse baffle 13 of the upper corner bonding plate 1 has anti-slip spikes 131, more preferably spiked spikes that hold the protective frames stacked on top of each other.

According to an embodiment (for example, shown in FIG. 12), the upper corner pad 1 has two outer protrusions 111, each connected to the outer side wall 11, and two inner protrusions 121, each connected to the inner side wall 12.

Each protrusion (111, 121) is provided with a transverse holding portion (112, 122). Moreover, each protrusion (111, 121) is made with the possibility of connection with a groove 31 made in the wall 3 of the protective frame and held in it with the support surface of its transverse section (112, 122).

12, the inner protrusions 121 have a shape that provides them with an elasticity greater than that of the outer protrusions 111. In fact, such a shape can facilitate disassembly of the assembled protective frame. The inner protrusions 121 thus have, more preferably, an engagement portion 123, here an opening. The engaging portion 123 can, for example, be used to insert a tool therein to facilitate detaching the inner protrusion 121, to remove the upper corner bonding pads 1.

In this case, the transverse partition 13 further has, more preferably, perforated portions 132. Perforated portions 132 provide an insertion tool to come into contact with the engagement portions 123.

According to this embodiment of the upper corner lining 1, from the transverse partition 13 are located: on the side of its lower surface, the outer and inner side partitions 11, 12 and, where applicable, on the side of its upper surface, the guide wall 14. More preferably, the guide wall 14 is located in the continuation of the outer side walls 11 of the upper corner lining 1. More preferably, the guide wall 14 has a slightly expanded shape, i.e. with an edge inclined outward and with a height h2 less than the height h3 of the guide wall, which helps to install in the right place an element (for example, another protective frame) that fits on top of the protective frame, while contributing to its wedging.

An angled patch having a guide wall 14 could of course be used as a lower corner pad, but the guide wall 14 then loses its primary function, or makes assembly less convenient.

It may be further provided that if the first angle (18, 28) is truncated, the corner pads are without guide walls 14, or it is preferable that these guide walls 14 are made in a corner with an angled wall located of a reduced height.

It should also be noted that the base (13, 23) has a substantially triangular shape in this place and can be located on the side where the partitions (11, 21, 12, 22) are located and in its area located outside the first and second volumes (l5a , 15b; 25a, 25b), free from any completed structure that rises to a height exceeding a quarter of the height of the partitions. Such constructions here may not be performed at all, which should free up even more space for loading the protective frame.

In this embodiment, it is also preferable when the protrusions (111, 121) are present both on the inner side partition 12 and the outer side partition 11 of the corner lining 1, while the inner protrusions 121 of the inner side partitions 12 are longer than the outer protrusions 111 of the outer side partitions 11.

In fact, it is possible to remove the inner protrusion 121 by inserting, as far as possible, the tool into the engagement portion 123 with the passage through the perforated portion 132, but it is also possible to remove the inner protrusion 121 by inserting the tool into the groove 31 (which should be able to pass through) which holds the transverse portion 122, and pushing it towards the inside of the protective frame. In this case, it is also necessary that the length of the inner protrusions 121 is greater than the length of the outer protrusions 111. This length also contributes to giving greater elasticity.

According to another embodiment (for example, shown in FIG. 13), the upper or lower corner plate 1, 2, respectively, has only two outer protrusions 111, each connected to the outer side wall 11 and provided with a transverse holding section 112 configured to connect to a groove 31 in the wall 3 of the protective frame. The outer protrusion 111, while being held by the supporting surface of the transverse section 112. Perforated sections 132 are not required.

In this embodiment, the upper or lower corner plate 1, 2, respectively, also do not have a guide wall 14.

However, it is obvious that the upper corner plate 1 may have a guide wall 14 and contain only the outer protrusions 111 or only the inner protrusions 121, or not have the guide wall 14 and contain the inner and outer protrusions 111 and 121, respectively.

If the upper corner bonding pad has only internal protrusions 121, with or without a guide wall 14, then preferably the internal protrusions 121 have engaging portions 123, and the transverse partition 13 has perforated portions 132 to facilitate removal of these elements during disassembly of the protective frame. Or, the groove 31 to which the inner protrusion 121 is connected is more preferably made with a through passage to allow the tool to be inserted to push the clamp back while removing the corner bonding pad.

The lower corner pad 2, shown as an example in FIG. 11, has cavities 25 oriented in two intersecting directions and configured to receive the walls 3 of the protective frame that are assembled using the corner tabs 2.

Each cavity 25 is bounded by an outer lateral partition 21 and an inner lateral partition 22.

The outer side walls 21 converge to the first corner 28 of the lower corner lining 2.

Here, the angle 28 is a right angle, more preferably truncated.

The lower corner pads 2 may also have various structural reinforcing elements 26, well known in the art. Reinforcing parts 26 also contribute to the proper installation of the walls 3 of the protective frame under consideration, which are assembled using corner pads 2.

The structural reinforcing elements 26 are preferably polygonal supports installed close to the inner side wall 22. These supports are a priori identical. They are more preferably rectangular. They are used as a reinforcing part and as a limiter of the cavity 25, for placement close to them (and wedging) the walls of the protective frame. Their cross section is approximately half the width "l" of the cavity 25 to limit the two cavities located between the considered inner side wall 22 and the outer side wall 21 along which it is installed.

Essentially, two adjacent and interconnected volumes should make it possible to receive the strips 32 and racks 33 in them. Preferably, the supporting surfaces are perpendicular to each other.

The supports 26 thus limit longitudinally the first volume receiving the rack 33 in question here. These supports 26 are located here at the ends of these volumes opposite the first corner 28. At this end, the second volume opens at position 250.

At its longitudinal end, near the corner 28 and, therefore, opposite to the position 250 where it is open, this second cavity is preferably bounded by a partition 214 and with an alignment with a portion 224 extending the partition 12. It can be considered that the partitions 214 limit the angular support 281 .

Each lower corner fastening pad 2 has, for example, two protrusions 211, each connected to the outer side wall 21, and two protrusions 221, each connected to the inner side wall 22.

Each protrusion (211, 221) is provided with a transverse holding portion (212, 222). Moreover, each protrusion (211, 221) is adapted for connecting to the groove 31 in the wall 3 of the protective frame and holding it using the supporting surface of its transverse section (212, 222).

Similarly to the upper corner pads 1 according to the first embodiment, it is preferable if the protrusions (211, 221) are present on both the inner and outer side partitions 22 and 21, the inner protrusions 221 of the inner side partitions 22 being longer than the outer protrusions 211 of the outer side partitions 21.

Each lower corner pad 2 also has a transverse baffle 23 on the outer and inner side partitions 21 and 22, respectively, forming a bearing surface of the base. The base 23 is preferably a solid plate.

The transverse partition 23 also contains on its upper surface the outer and inner side partitions 21 and 22. On its lower surface, the transverse partition 23 may, for example, have elements for connecting to the cargo pallet 5, for example, nails (not shown here).

Essentially, along each outer side wall 21 and with its butt facing the base 23, the side wall 3 of the protective frame must be adapted to receive substantially parallel to this wall 21. In the embodiment shown, this is an extreme portion of one of these side walls 3, which therefore therefore comprises a plank 32 arranged substantially perpendicular to one another and a corresponding adjacent post 33.

For reception with a wedging of the considered side wall 3 of the protective frame, each partition 21 of the considered corner lining 2 is essentially installed inside at a certain distance from the inner side wall 22, located essentially parallel to it.

The upper corner pad 1 according to the embodiment of FIG. 13, for example, can form both an upper corner pad and a lower corner pad. In addition, the upper corner pad 1 according to this second embodiment is similar to the lower corner pad 2 shown in FIG. 11, for example, but does not include the inner protrusions 221. In this case, it is possible to assemble the protective frame using the corner pads, which are all are identical, both lower and upper.

According to the exemplary embodiments shown, the protrusion 121 in FIG. 12 is more easily elastically deformed than the protrusion 211 or 221. However, all the protrusions (111, 121, 211, 221) may have the same shape as the protrusion 121 in FIG. 12.

Similarly, only the protrusion 121 has an engagement portion 123, however, all the protrusions (111, 121, 211, 221) could have an engagement portion, such as a hole, to facilitate their removal from the corresponding groove 31.

The transverse holding portion (112, 122, 212, 222) of the protrusion (111, 121, 211, 221) may also have an asymmetric shape, for example, the shape of a knife blade, such as a transverse section 112, which makes the insertion and removal of corner pads easier.

According to the examples shown, the opposing transverse holding portions (112, 122, 212, 222) of the protrusions (111, 121, 211, 221), for example, portions 222-212 or 122-112, have gaps between them that are visible in Fig. 11c) and 12c), for example. However, these transverse holding portions (112, 122, 212, 222) can be wider, resulting in overlapping of the outer protrusions (112, 212) with the inner protrusions (122, 222), which does not interfere with the functioning of the invention.

The shape of the upper and lower corner pads 1 and 2 makes it possible to install protective frames on each other, which facilitates their transportation and storage. For example, the upper corner pads 1 are configured to receive a cargo pallet 5 of another protective frame.

According to other embodiments shown in FIGS. 14-17, the corner pad (1, 2) has inner protrusions (121, 221) and / or outer protrusions (111, 211) provided with transverse holding portions (112, 122, 212, 222), made with the possibility of connection with the edge of the strip of the wall 3 of the protective frame and holding it by supporting its transverse section (112, 122, 212, 222).

Similarly, the transverse holding portion (112, 122, 212, 222) of the protrusion (111, 121, 211, 221) may have an asymmetric shape, for example, the shape of a knife blade. The inner protrusions may have a shape that provides them with an increase in elasticity, such as the shape of the protrusion 121, which makes it easier to disassemble the assembled protective frame. Such a protrusion, more preferably, has an engagement portion 123, here is an opening configured to be used to insert a tool therein to facilitate detachment of the protrusion and removal of the corner lining.

In this case, the transverse wall (13) preferably has a perforated portion 132. The perforated portions 132 permit insertion of a tool for connecting to the engaging portions 123.

It is also possible to remove the inner protrusion (121, 221) by pushing inward the protective frame of the transverse section (122, 222) pressed against the wall plate.

It is obvious that the upper corner plate 1 may have a guide wall 14 and contain only the outer protrusions 111 or only the inner protrusions 121, or the outer protrusions 111 and the inner protrusions 121, or not have the guide wall 14 and contain the inner protrusions 121 and / or the outer protrusions 111.

When long protrusions (111, 121, 211, 221) are present on both the inner side walls (12, 22) and the outer side walls (11, 21), preferably the inner protrusions (121, 221) of the inner side walls (12, 22 ) longer than the outer protrusions (111, 211) of the outer side walls (11, 21).

When the corner pad is used as the bottom corner pad 2, preferably the transverse wall 23 includes, for example, elements for connecting to the cargo pallet 5 (not shown here) on its outer surface.

Similarly, it is quite obvious that the lower corner plate 2 may have connection elements with the cargo pallet 5 and contain only external protrusions 211 or only internal protrusions 221, or both external protrusions 211 and internal protrusions 221, or may not have elements connected to the cargo pallet 5 and comprise inner protrusions 221 and / or outer protrusions 211.

The use of long protrusions has the main advantage that it does not require machining the groove 31 in the wall of the protective frame.

Preferably, each corner pad (1, 2) has an outer process (or protrusion) (19, 29) in the corner (18, 28) under consideration for mounting the elastic element 6. This process is more preferably provided with a retaining lip that prevents the elastic from slipping unexpectedly element 6.

The outer process (19, 29) makes it possible, for example, to connect the upper corner lining 1 and the lower corner lining 2 with each other so that a pair is formed, using the tensile element 6 essentially making them closer (here, pulling them together friend).

To limit internal obstacles, which is synonymous with lost loading space, preferably each tensile element (6, 7) is located outside the corners of the protective frame. Each element extends (vertically) along the height of the protective frame, between the upper and lower corner fastening pad 1 and 2 of the pair in question.

According to a preferred embodiment, the tensile member is an elastic member 6. The member may be made of tensile rubber.

According to another embodiment shown in Figs. 25-27, the tensile member may include an elongated rigid bar structure 7 mounted rotatably on the corner pads (1, 2) of the pair. This rod structure 7 is provided with a length adjusting means 71 distributed along its length, which rests on the corner plates according to the angular position of the rod structure 7, for attracting the plates to each other.

To this end, each corner plate (1, 2) preferably has a through channel (17, 27) extending along the direction (here vertical) of the length of the rod structure 7 mounted on the protective frame between the corner plates 1 and 2 (compare, for example, corner fastening plates Fig. 18 and 19). Using the means for adjusting the length of the rod structure 7, it relies essentially on the outer edge of the channel (17, 27). This rod structure 7 may be screws, and the outer edge may be provided with a corresponding thread. The movable top can facilitate the rotation of the rod structure 7. Mounted on protective frames, these frames should not pass, respectively, below or above the corner plates (1, 2) of the pair in question.

In this solution with rod structures, each through channel (17, 27) should preferably be carried out immediately near the first truncated angle under consideration (18, 28) so that the rigid rod structure 7 passes through the corner supports (181, 281).

Corner supports (181, 281) are located close to the partitions (114, 214) in a truncated corner, in height, which can be equal to the height of the partitions (11, 12). These angular supports (181, 281) are triangular here.

As for the internal partitions (12, 22), they are connected to each other in the vicinity of this first corner (18, 28), in place of the corner (120, 220), from which the connecting and supporting partitions (124, 224) for the side wall 3 the protective frame is connected to the backup (181, 281). The partition (124, 224) is bent here at right angles for longitudinal restriction, at one end, of two volumes (15a, 15b; 25a, 25b) that make up the cavities (15, 25) of the corner lining under consideration, which are open (downward for the upper corner pads 1 and up for the lower corner pads 2).

To facilitate installation balance, the appendage (19, 29) should more preferably be performed on an inclined wall, creating a connection between adjacent outer side partitions (11, 21). The process (19, 29) can be located, for example, at half the height of the H / 2 septum (cf. FIG. 20b).

To further strengthen the wedging of the corner pads and the strength of the protective frame assembly, the corner pads (1, 2) may also include tapering ribs 8, as shown, in particular, in FIGS. 28 and 31.

In the shown embodiment, the tapering rib 8 is presented on the transverse reinforcing member 9, and three tapering ribs 8 are presented on the inner side wall. These ribs 8 can, of course, be installed on any partition of any corner lining, provided that they are recessed into the wall of the protective frame during installation in place of the corner lining.

In the embodiment shown, each of the two transverse reinforcing parts 9 is orthogonal to the inner and outer baffles of the oriented cavities where present.

Essentially, the corner pads may include transverse reinforcing members 9 to stiffen some parts of the structure. These transverse reinforcing members 9 are profiled such that, regardless of presence, they provide sufficient flexibility to the outer side partitions to facilitate insertion or removal of the protrusions when the outer side partitions are provided with them. This requires the opening and vertical grooves 34 in the walls of the protective frame with the possibility of placing these transverse reinforcing parts 9. They, in addition, make it possible to install in the right place the corresponding corner lining.

Essentially, the upper corner plate 1 and the lower corner plate 2, both provided with an external process (19, 29), form a pair of corner plates made with the possibility of working together with an elastic tensile element that provides packaging (for storage, for example) and assembly protective frame, for example, as shown in Fig.32-33.

Corner pads a pair of corner pads may also include ribs 8, protrusions provided with transverse holding portions, guide walls, etc. These differences can essentially be adjusted according to specific requirements.

Here, the corner pads of the device, providing the assembly of the protective frame with the possibility of disassembling, as well as its packaging after disassembling, have fixing clips on the outer side partitions made with the possibility of connection with horizontal grooves 31 made in the walls of the protective frame, the outer process, narrowing ribs 8 and transverse reinforcing parts 9, made with the possibility of connection with the opening vertical grooves 34 made in the walls.

The protective frame, which can be disassembled as shown, here contains the following constituent elements, made with the possibility of assembly and disassembly:

- four pairs of corner pads and two elastic working in tension element,

- cargo pallet 5, forming the bottom of the base of the protective frame,

- four side walls having horizontal grooves 31 and vertical grooves 34, made with the possibility of placing latches and transverse reinforcing parts 9.

Essentially, when the protective frame is installed, the lower corner pads are fastened to the cargo pallet, the walls and corner pads being properly installed, and each of the connecting rods connects two lower corner pads and two upper corner pads.

When the protective frame is disassembled, pairs of corner bonding pads and tie rods are used as a packaging device.

The lower corner plates are always attached to the cargo pallet 5, but the upper corner plates are now mounted on the cargo pallet 5, and the four walls 3, intended to form a protective frame 3, are laid flat on the cargo pallet 5 crosswise. The two connecting rods are then connected to each other by two lower diagonally opposed corner pads, so that they cross over the walls 3 laid flat, which makes it possible to hold all the elements together.

This invention essentially makes it possible to easily install on each other protective frames, mounted or disassembled.

Claims (9)

1. A polygonal protective frame having several sides and containing:
- side walls (3), each of which has, in the vicinity of at least one upper or lower edge of each side, an extreme portion that comprises a bar (32) and an adjacent post (33) located essentially perpendicular to each other, and
- several pairs of corner plates, each of which contains, in each corner of the protective frame, an upper corner plate (1) and a lower corner plate (2), each of which:
· Has cavities (15, 25) oriented in two directions, where each cavity is bounded by at least one external lateral partition (11, 21) and one internal lateral partition (12, 22), and
· Takes, along each of the two outer side partitions (11, 21), respectively, the specified racks (33) and adjacent slats (32),
characterized in that said polygonal protective frame further comprises tensile elements (6, 7), each of which pulls together, closer to each other, the corner pads (1, 2) of each pair for pulling them together, each the corner pad contains an outer process (19, 29) located in the corner of the corner pad to accommodate the tensile element. 2. A polygonal protective frame according to claim 1, characterized in that each outer process (19, 29) is equipped with a holding flange, while one of the tensile elements (6, 7) engages in a corresponding holding flange, making it possible to approach each other the other two of these corner pads. 3. The polygonal protective frame according to claim 1, characterized in that each corner pad (1, 2) further comprises a protrusion (111, 121, 211, 221) provided with a transverse holding section (112, 122, 212, 222), wherein the protrusion (111, 121, 211, 221) is made with the possibility of connection in the groove (31), parallel to the edge of one of the side walls (3) of the protective frame, and holding it by supporting its transverse holding section (112, 122, 212, 222). 4. The polygonal protective frame according to claim 3, characterized in that the transverse holding portion (112, 122, 212, 222) of one of the protrusions has an asymmetric shape. 5. The polygonal protective frame according to claim 3, characterized in that at least one of the protrusions (111, 121, 211, 221) of each corner lining has an engagement portion (123). 6. Polygonal protective frame according to claim 1, characterized in that at least one of the side walls (3) has at least one through groove (34) made on the edge of said side wall (3) and orthogonal to it. 7. The polygonal protective frame according to claim 6, characterized in that in each said orientable cavity (15, 25) there is a transverse reinforcing part (9) on at least one of the inner and outer side partitions (12, 22) and (11 , 21), configured to interact with the through groove (34) on the edge of the side wall facing toward it (3) and configured to pass through it to provide relative positioning of the side wall facing towards it (3) and the corner lining (1, 2). 8. The polygonal protective frame according to claim 1, characterized in that each tensile element (6, 7) contains at least one elastic element. 9. The polygonal protective frame according to claim 1, characterized in that it further comprises a cargo pallet (5) forming the bottom of the base of the protective frame, the lower corner pads (2) mounted on the cargo pallet (5), each of the side walls ( 3), facing the two lower corner plates (2), mounted on the adjacent corners of the cargo pallet (5), is assembled using these two lower corner plates (2) and the corresponding two upper corner plates (1), and tensile elements ( 6, 7) connect with each other these two lower corner lining (2) and two upper corner lining (1), assembled from each of these side walls (3).

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