FR2913008A1 - Plastic panel for forming wall of e.g. cubical shaped container, has hollow piece with receiving site extending between lateral edges of panel and receiving elongated reinforcement element that stiffens and rigidifies adapted section - Google Patents

Abstract

The panel (1) has a hollow surface piece (2) formed of two skins defining smooth and non-smooth surfaces of the panel. The skins are connected, by material bridges, in places distributed on surfaces of the skins. The bridges are formed by deformations (3'') of the skin (3') towards another skin defining the smooth surface. The hollow piece has a sectioned receiving site (5) extending between lateral edges (6, 6') of the panel. The sites receive a metallic elongated reinforcement element (7) that stiffens and rigidifies an adapted section.

Description

DESCRIPTION

  The present invention relates to the field of packaging, in particular temporary and / or for the purpose of transport, in particular of bulk parts, and relates to a wall panel and a container-type container, as well as its constituent parts, in particular the walls constituting it and forming its different sides. These containers, which can accommodate heavy loads and are generally intended to be moved, should optimally meet the following three criteria: high structural strength, low empty weight and low cost.

  The known containers with structure and screened walls respond satisfactorily to the first criterion, but not to the second. In addition, the maintenance of these mesh containers is tedious and their cost is high. In addition, they do not provide continuous walls, which limits their application to parts and articles having a size greater than a minimum size, and do not provide a flat and smooth internal surface. Known containers with continuous walls, with smooth or non-smooth internal surfaces, also meet at best only two of the three aforementioned criteria.

  Indeed, in the case of solid and relatively thick walls, the container has the desired strength, but a high empty weight, and, in the case of thin or hollow walls, preferably in a light material, the container has a low weight but reports insufficient structural strength.

  In an attempt to overcome the limitations of the aforementioned known solutions, and to provide a solution satisfactorily satisfying the first two aforementioned antagonistic criteria, with a low cost price, the Applicant has already developed and marketed, under the name RAUBOX, a container whose walls are formed of panels each consisting essentially of a hollow piece of space in one piece. This piece is formed of at least two skins defining the two opposite faces of the panel, the two skins being interconnected at localized locations distributed on their surface by means of material bridges, for example formed by deformations of the non-planar skin to -2- flat skin (skin gluing). These hollow surface pieces are preferably formed by blowing. The object of the present invention is to improve the solution known to the applicant, particularly in terms of strength and strength, both in terms of the constituent elements of the walls and the container itself, while also ensuring easy access to the volume. interior of the container and a possibility of partial or total disassembly quick and tedious. For this purpose, the main subject of the present invention is a plastic panel, in particular intended to form a wall or part of a wall of a container or container, this panel having a generally rectangular or square shape and comprising at least a substantially plane and flat continuous face, said panel consisting essentially of an integral hollow piece of space, formed of at least two skins defining the two opposite faces of the panel, the two skins being connected together in distributed localized locations; on their surface by means of material bridges, for example formed by localized deformations of one of the two skins to the skin defining the smooth face, panel characterized in that the hollow surface piece comprises at least one profiled receiving site extending between two opposite lateral edges of said panel, the or each site receiving, with maintenance, an elongated consolidation element and / or stiffening, preferably metal, of adapted section, forming a reinforcing element.

  The invention also relates to a container of cubic or rectangular parallelepiped shape, consisting, on the one hand, of a support frame comprising at least one generally rectangular base frame, closed or not, and four uprights extending vertically from four corners of said rectangle, and, secondly, by walls closing the lateral sides, the bottom and top of said container, containing characterized in that at least one of its walls, preferably at least some of its side walls , from above or from the bottom, preferably all its walls, consist (s) (each) in at least one panel as evoked above, assembled (s) removably with said support frame and mounted (s) with their flat faces directed towards the inside of said container. The invention will be better understood from the following description, which refers to preferred embodiments, given by way of non-limiting examples, and explained with reference to the appended diagrammatic drawings, in which: FIGS. 1A and 1B are views, respectively in perspective and front view, of a composite panel formed of two panels according to a first embodiment of the invention; FIGS. 1C and 1D are partial sectional views at a different scale along A-A and B-B of the panel of FIG. 1B; Figures 2A and 2B are views, respectively exploded perspective and partially in section along A-A, of a panel according to a second embodiment of the invention; FIGS. 3A and 3B are respectively perspective and front views of a composite panel formed of two panels according to an alternative embodiment of the first embodiment of the invention; 3C to 3G are sectional views, at different scales, of the panel of FIG 3B, respectively according to the sectional planes AA (FIG 3C), BB (FIG 3D), CC (FIG 3E), DD (Fig. 3F) and EE (Fig. 3G); Figure 4 is a perspective view of a support frame of a container according to the invention; Figures 5 to 8 are perspective views of a container according to the invention in the form of a container, equipped with its side and bottom walls and illustrating the possibilities of articulation of some of these walls; Figures 9 and 10 are respectively perspective and side elevation views of a composite panel according to Figures 1A and 1B in a position substantially folded on itself, slightly further apart than the fully folded composite panel of Figures 7 and 8; ; Figures 11A and 11B are views, on a different scale, in section along A-A and B-B of the composite panel of Figure 10; Figures 12 to 14 are views respectively in perspective, in side elevation. from behind and from above a container according to the invention in the form of a carriage; FIGS. 15 and 16 are sectional views along the planes AA and BB of the container of FIG. 13 (the wheels having been omitted), and FIG. 17 is a sectional view along the plane CC of the container of FIG. Figure 14 (the wheels and the top wall having been omitted). Figures 1 to 3 show a panel 1 of plastic material, in particular for. forming a wall or wall portion of a container 20, this panel 1 having a generally rectangular or square shape and having at least one face 1 'substantially smooth continuous. This panel 1 consists essentially of a hollow piece surface 2 in one piece, formed of at least two skins 3 and 3 'defining the two opposite faces smooth 1' (smooth skin 3) and not smooth 1 '(non-smooth skin 3 ') of the panel 1, the two skins being interconnected at localized locations distributed on their surface by means of material bridges 4, for example formed by localized deformations 3' of a 3 'of the two skins 3 , 3 'to the skin 3 defining the smooth face 1' (for example by skin gluing).

  According to the invention, the hollow surface piece 2 comprises at least one profiled reception site 5, 17 extending between two opposite lateral edges 6 and 6 'of said panel 1, the or each site 5 receiving, with maintenance, an element elongate 7, 17 'consolidation and / or stiffening, preferably metal, adapted section forming a reinforcing element. Preferably, the panel 1 comprises at least two profiled reception sites 5, 17, each site 5 is defined between the two skins 3 and 3 ', unitarily over its entire extension or by consecutive segments 5' aligned and each site 5 or 5 'site segment is constituted by functional cooperation of a formation 8 or deformation 8' of the non-smooth skin 3 ', profiled in the longitudinal direction of the site 5 considered, with the smooth skin 3 or with a formation or deformation 9 in facing the inner face of the smooth skin 3, in order to achieve a blocking of a profiled reinforcing element 7, housed at said site 5, in a plane perpendicular to its longitudinal axis X, while allowing its guided sliding according to this axis. Advantageously, the hollow surface piece 2 is a blow-formed piece and each reception profile 5 is constituted by at least two segments or bearing zones 5 'in the form of profiled chambers, defined each between two material bridges 4 connecting the two skins 3 and 3 ', aligned with each other in the direction of extension of the receiving site 5 in question and each formed by a portion of non-smooth skin 3' of substantially U-section cooperating with a portion facing the skin 3. The portion of non-smooth skin 3 'is provided with at least one projection 8 or recess 8' of wedging seeking the reinforcing member considered 7 against the portion of smooth skin 3 facing.

  The part 2 is generally of flat and flat constitution, accepting elements 7 and 17 'rectilinear. In this case, the smooth faces 1 'and not smooth 1 "provide flat and flat contact surfaces, substantially continuous for the smooth face 1' and discontinuous for the non-smooth face 1". However. the part 2 can also be curved and the elements 7 and 17 'have a suitable curvature. The reinforcing elements 7 may be solid rods or bars or hollow or non-hollow profiled elements. The invention thus provides a panel both lightweight and resistant, the reinforcing elements 7 providing an integrated reinforcement structure, in the form of multiple inserts, in intimate contact with the hollow part 2. Such a panel 1 has substantially a resistance close to that of a metal screen wall, for a weight close to that of a hollow plastic wall, by the advantageous exploitation of the intimate cooperation of the part 2 and reinforcements 7 integrated and the judicious choice and distribution optimized locations of these reinforcements. In addition, said panel 1 has on one side a completely smooth face, preferably flat and flat. The profiled chambers constituting the continuous receiving sites 5 or mutually aligned segments 5 'thereof (discontinuous sites) may, depending on the respective shapes of the reinforcing elements 7 and said chambers, be in contact on a surface area. greater or lesser external of said reinforcing elements 7. The contact zones may be of surface type (FIGS. 1C and 1D) or linear (FIG. 2B), these contact surfaces being maximized with the skin 3. As the views show in section of Figures 1 to 3, the non-planar skin 2 'has hollow hulls or recesses (its) profiled (e) s forming, by cooperation with the flat skin 2, the profiled chambers 5, 5' transversely continuous or segmented. These chambers comprise, as shown in FIGS. 1C, 2B, 3E and 3F, protruding formations or ribs 8 (FIGS. 1C, 3E and 3F) or recessed deformations or grooves 8 (FIG. 2B) at the level of the non-planar skin 2 and grooves, depressions or deformable areas profiled surface 9 at the plane skin 2, immobilizing, preferably slightly under stress, the reinforcing elements 7 in the plane perpendicular to their longitudinal axis X.

  The reinforcing elements 7 thus constitute primary lines or zones of stiffening and the bridges of material 4 making it possible to transmit the stresses impacting the part 2 outside the zones of skin 3 in contact with the elements 7 towards these lines or zones, which preferably extend in the direction of greater dimension of the panel 1. In order to allow an interaction of the panel 1 with an element or an adjoining part, it is advantageously provided that each reinforcing element 7 comprises at each of its two ends 7 'a means 10, 10' of attachment, articulation, abutment or contact or similar connection, these means 10, 10 'protruding laterally from the hollow surface piece 2 and one of said means optionally ensuring further a blocking of the reinforcing element 7 in the direction of its longitudinal axis X. Thus, all the forces can be transmitted between the panel 1 and its environment by the s means 10, 10 'and be taken directly by the reinforcing elements 7 and distributed over the surface of the panel 1. The latter may comprise either one or preferably two or more reinforcing elements 7, distributed homogeneously on the width or height of the panel 1, or distributed according to a predefined non-homogeneous scheme, responding to targeted solicitations or distributed in a specific pattern. In accordance with a characteristic of the invention, particularly apparent from the embodiment of FIG. 2, the hollow surface piece 2 comprises along its opposite lateral sides, corresponding to the lateral edges 6 and 6 'of the panel 1 and perpendicular to the extension direction of the profiled receiving sites of the transverse reinforcement elements 7, lateral profiled sites 11 for receiving two longitudinal reinforcing elements 12, possibly corresponding to the wings of a U-shaped frame 12 ', these longitudinal reinforcing elements 12 also providing an axial locking of the transverse reinforcing elements 7. A panel 1 is thus obtained, the strength and rigidity of which are increased simultaneously in the longitudinal and transverse directions, with the possibility of taking up peripheral forces. The mounting of the reinforcing elements in this embodiment is shown in FIG. 2A and consists in first inserting the transverse reinforcement elements 7 in the sites 5, then inserting the longitudinal reinforcing elements 12 in the sites 11. last block elements 7 in sites 5). The segment of the U-shaped frame 12 'connecting the two flanges 12 may optionally cooperate with a concordantly shaped reception site formed on the corresponding side of the hollow part 2, adjacent to said segment in the inserted position of the U. In accordance with another characteristic of the invention, illustrated in Figures 5 to 8 of the accompanying drawings, the part 2 may comprise, along at least one of its opposite lateral sides, corresponding to the side edges 6 and 6 'of the panel 1 and perpendicular to the direction of extension of the receiving profiled sites 5 of the transverse reinforcement elements 7, projections 13 conferring on the lateral edge concerned a crenellated configuration, said projections 13 being provided with through passages 13 'aligned with each other.

  These passages 13 'thus form a receiving site 5 for a reinforcing element 7, which may also fulfill another function such as a function of assembly, attachment or articulated hinge axis hinge type. According to still another characteristic of the invention, as shown in FIGS. 1, 3, 5 to 13 and 15 to 17 of the accompanying drawings, the part 2 may comprise, along at least one of its lateral sides parallel to the extension direction of the profiled sites 5 for receiving the transverse reinforcement elements 7, a crenellated configuration edge 14 capable of coming into interpenetrating engagement with the crenellated edge 14 complementary to a hollow surface piece 2 identical or not and oriented in a similar manner , to form a composite panel 15, 15 'of substantially double surface, the projecting portions 16 of said crenellated edge 14 being provided with through passages 16' aligned with each other, the respective through-passages 16 'of two hollow surface pieces 2 cooperating to form a composite panel 15, 15 'of double surface being all mutually aligned, so as to constitute a profiled receiving site 17 for an elongated element -8 - 17 'of assembly and reinforcement rod type or the like, round or polygonal section. In order to allow two panels 1 forming a composite panel 15 to be folded over one another (FIGS. 1 and 7 to 11), it can advantageously be provided that the hollow surface piece 2 also has a crenellated configuration as seen in FIG. plane of the outer surface S of the skin defining the non-smooth face 3 ', in the lateral zone of the crenellated edge 14, with alternating regions 18 and 18' of progressive increase and decrease, with inverse rates, of the thickness of said piece 2 in the direction of the edge concerned, the regions 18 whose thickness increases corresponding to the projections 16 of the crenellated edge 14 and the regions 18 'whose thickness decreases corresponding to the crenellations arranged between these projecting parts 16, the through-passages 16 'being situated in the thickened ends of said projecting portions 16, at maximum distance from the skin defining the smooth face 3 of the hollow areal piece 2, and shaped to receive an elongated member 17 'forming a pivot axis. In this embodiment (panel 15), the projections 16 may be constituted by the skin portions of the part 2 forming the passages 16 '. According to a very advantageous embodiment of the invention, also apparent from Figures 1 and 7 to 11 of the accompanying drawings, the crenellated edge 14 and the alternating regions 18 and 18 'to increasing and decreasing thickness toward the free ends of the parts projections 16 and 25 of the crenellations have mutual configurations and proportions such that a panel 1 can be assembled with an identical panel 1 to form a composite panel 15, and in that the decreasing thickness regions 18 'have a complementary shape of those of the increasing thickness regions 18 and the pivot axis X 'is situated in the plane of the outer surface of the skin defining the non-smooth face 3', thus allowing complete folding of a panel 1 on the other. Thus, two panels 1 identical, that is to say whose parts 2 were manufactured with the same tool, can be assembled together to form a double composite panel 15 fully collapsible on 35 itself. A panel 1 according to the invention may also include both projections 13 on one or both opposite side edges 6 and 6 'and a crenelated edge 14 with longitudinal projections 16 (see Figures 5 and 6). In order to facilitate the sliding introduction of the reinforcing elements 7 into the sites 5, at least in a preferred direction, it may be provided that the localized deformations 3 "of the non-smooth skin 3 ', which in pairs define segments 5 5 of receiving sites 5, each have, at one of the openings of the segment 5 'that it delimits, a wall portion 3 "' inclined towards said opening, so as to form with the wall portion inclined 3 "'of the other deformation 3" of the pair forming the segment 5' considered, a self-centering means of the elongated reinforcing element 7 during its introduction by sliding in said site segment 5 ', all the segments 5 'of the same site 5 advantageously having each of the wall portions 3 "' similarly inclined (Figures 1 and 2).

  According to a further feature of the invention, corresponding to a variant embodiment of the invention shown in Figures 3, 12 and 17 of the accompanying drawings, the surface hollow part 2 may have at least one cut 19 closed by a plate 19 ' in a material different from that forming said hollow part 2, for example transparent. Of course, this cutout 19 is located outside the zones receiving the reinforcing elements 7, 17 '. In this embodiment, the panel 1 may have only one reinforcing element 17 ', optionally shared with an adjoining panel 1, these panels together forming a composite panel 15'. The present invention also relates, as shown in FIGS. 4 to 8 and 12 to 17, to a container 20 of cubic or rectangular parallelepiped shape, in particular of the container type, constituted, on the one hand, by a support frame 21 comprising at least one base frame 22 of rectangular general shape, closed or not, and four uprights 23 extending vertically from the four corners of said rectangle, and, secondly, by walls closing the lateral sides, the bottom and the top of said containing 20. This container 20 is characterized in that at least one of its walls, advantageously at least some of its side walls, from above and / or from the bottom, preferably all its walls, consists (each) of at least one panel 1 according to any one of claims 1 to 9. removably assembled with said support frame 21 and mounted (s) with their smooth faces 3, 1 '(or skins with a smooth face) directed towards inside said con 20. Preferably, the side walls are each formed by a composite panel 15 or 15 'constituted by the assembly of two panels 1, the assembly connection, at the mutually nested crenelated edges 14 of said two panels 1, being either articulated about a pivot axis, with through-passages 16 'and a round-section connecting element 17' cooperating to form a hinge (composite panel 15), that is of a rigid nature with through-passages 16 'and an assembly element 17 'with polygonal section (composite panel 15'). According to a characteristic of the container 20, when it has a rectangular parallelepiped shape, each of the walls closing one of the two opposite large lateral sides consists of a composite panel 15 composed of two identical panels 1, connected in an articulated manner and integrating each at least two elongate reinforcements 7 extending in a direction parallel to that of the axis X 'of the pivot joint. The reinforcements 7 of the lower panel 1 then comprise at one of their ends 7 'protruding a portion 10' of a pivoting hinge-type hinge or the like about an axis X ", the complementary parts 24 of said hinges being secured to an upright 23 of the support armature 21, and the other ends 7 'of the reinforcing elements 7 of said panels 1 are provided with connection or contact means 10 protruding laterally from the hollow surface part 2 and able to cooperate , removably, with complementary connection means formed or reported on the uprights 23 of each pair flanking one of the two walls of the two opposite large lateral sides of the container 20.

  According to a characteristic of the container 20, when it has a rectangular parallelepipedal shape, each of the walls closing one of the two small opposite lateral sides consists of a composite panel 15 'composed of two panels 1 identical or not rigidly assembled to each other at at their respective mutually nested crenellated edges 14, via an elongated reinforcing member 17 'passing through the passages 16' of the projections 16 of said edges 14. Each composite panel 15 'then has on at least one of its sides Laterally, perpendicular to the axial direction X of the reinforcing element 17 'ensuring the assembly of the two panels 1, projections 13 conferring on the edge also a crenellated configuration and provided with through passages 13' aligned with each other, said passages 13 'receiving an elongated element 25 extending over the entire height of the lateral side concerned of said pa composite lamb 15 '. As shown in FIGS. 5 to 8, each of the two sides of the composite panel 15 advantageously has projections 13 provided with passages 13 'each receiving an elongate element 25, one of said elongate elements 25 cooperating with a corresponding upright 23 of the support frame 21, and where appropriate with the base frame 22, to form a pivotally mount about an axis X "'for said composite panel 15', in the manner of a door or a leaf. and as shown in FIGS. 2, 7, 8 and 12, the walls closing the bottom and the top of the container 20 consist of panels 1 whose hollow surface piece 2 comprises along its opposite lateral sides corresponding to the lateral edges 6 and 6 'of the panel 1, perpendicular to the direction of extension of the profiled sites 5 for receiving the transverse reinforcing elements 7, the lateral profiled sites 11 for receiving two longitudinal reinforcing elements 12, possibly corresponding to the wings of a U-shaped frame 12 ', these longitudinal reinforcing elements 12 also ensuring an axial locking of the transverse reinforcing elements 7. In order to ensure a recovery of peripheral forces at the bottom, the basic frame 22 has a U-shaped structure each of the segments has an internal recess portion 22 ', these portions 22' forming strip-shaped bearing surfaces receiving in a wedged manner the panel 1 forming the bottom wall. The mounting of the bottom panel 1 (Fig. 2) on the base frame 22 is such that two U 12 'and 22 overlap each other head to tail. To limit the number of different component parts and to ensure a low cost, it is advantageous that the two composite panels 15 forming the opposite side walls of the two long sides of said container 20, the two composite panels 15 'forming the side walls opposite of the two short sides and the two panels 1 forming the bottom and top walls, are respectively mutually identical, in terms of their structure, their dimensions and their constituent elements (panels 1, hollow parts 2, reinforcements 7 , 12 and 17 '). In accordance with two practical embodiments of the container 20, the base frame 22 may be provided with wheels and a fastening member 27 and wheelhouse (FIGS. 12 to 14), or may be associated with an infrastructure of the type standardized pallet. Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims (21)

  1) Plastic panel, in particular intended to form a wall or a part of wall of a container or container, this panel having a generally rectangular or square shape and having at least one substantially smooth continuous face, said panel consisting essentially of a hollow piece of a single piece, formed by at least two skins defining the two opposite faces of the panel, the two skins being interconnected at localized locations distributed on their surface by means of material bridges, for example formed by localized deformations of one of the two skins to the skin defining the smooth face, panel (1) characterized in that the hollow surface piece (2) comprises at least one profiled receiving site (5, 17) extending between two opposite lateral edges (6 and 6 ') of said panel (1), the or each site (5, 17) receiving, with maintenance, an elongated element (7, 17') of consolidation and / or stiffening , preferentially metallic, of adapted section, forming a reinforcing element.   2) Panel according to claim 1, characterized in that it comprises at least two profiled reception sites (5, 17), in that each site (5, 17) is defined between the two skins (3 and 3 ') , unitarily throughout its extension or in consecutive aligned segments (5 ') and in that each site (5) or site segment (5') is constituted by functional cooperation of a formation (8) or deformation (8) ') non-smooth skin (3'), profiled in the longitudinal direction of the site (5) considered, with the smooth skin (3) or with a formation or deformation (9) facing the inner face of the smooth skin (3), for blocking a profiled reinforcing element (7, 17 '), housed at said site (5, 17), in a plane perpendicular to its longitudinal axis (X), while allowing its sliding guided along this axis.   3) Panel according to any one of claims 1 and 2, characterized in that the hollow surface piece (2) is a blow-formed piece, preferably of generally flat and flat constitution, and in that each profiled receiving site ( 5) is constituted by at least two segments or bearing regions (5 ') in the form of profiled chambers, each defined between two material bridges (4) connecting the two skins (3 and 3'), aligned with each other in the direction extension of the reception site (5) - 14 - each formed by a portion of the non-smooth skin (3 ') with a substantially U-shaped section cooperating with a portion facing the smooth skin (3), the portion non-smooth skin (3 ') being provided with at least one projection (8) or recess (8') for wedging the reinforcing element considered (7) against the portion of smooth skin (3) in look.   4) Panel according to any one of claims 1 to 3, characterized in that each reinforcing element (7) comprises at each of its two ends (7 ') a means (10, 10') for attachment, articulation, abutment or contact or similar connection, these means (10, 10 ') protruding laterally from the hollow surface piece (2) and one of said means optionally further ensuring a locking of the reinforcing member (7) in the direction of its longitudinal axis (X).   5) Panel according to any one of claims 1 to 3, characterized in that the hollow surface piece (2) comprises along its opposite lateral sides, corresponding to the side edges (6 and 6 ') of the panel (1) and perpendicular to the extension direction of the profiled receiving sites of the transverse reinforcement elements (7), lateral profiled sites (11) for receiving two longitudinal reinforcing elements (12), possibly corresponding to the wings of a U-shaped frame (12 '), these longitudinal reinforcing elements (12) also ensuring axial locking of the transverse reinforcing elements (7).   6) Panel according to any one of claims 1 to 5, characterized in that the hollow surface piece (2) comprises, along at least one of its opposite lateral sides, corresponding to the side edges (6 and 6 ') of the panel (1) and perpendicular to the direction of extension of the receiving profiled sites (5) of the transverse reinforcing elements (7), projections (13) conferring on the lateral edge (13 ") concerned a crenellated configuration, said projections (13) being provided with through passages (13 ') aligned with each other.   7) Panel according to any one of claims 1 to 6, characterized in that the hollow surface piece (2) comprises, along at least one of its lateral sides parallel to the direction of extension of the profiled sites (5). ) receiving the transverse reinforcing elements (7), a crenellated edge (14) adapted to come into interpenetrating engagement with the crenellated edge (14) complementary to a hollow piece (2) identical or not and oriented from similarly, to form a composite panel (15, 15 ') of substantially double surface, the projecting portions (16) of said serrated edge (14) being provided with through-passages (16') aligned with one another, the through-passages (16 ' ) respectively of two hollow surface pieces (2) cooperating to form a composite panel (15, 15 ') of double surface being all mutually aligned, so as to form a profiled receiving site (17) for an elongated element (17') of assem and reinforcing rod type or the like, round or polygonal section.   8) Panel according to claim 7, characterized in that the hollow surface piece (2) also has a crenellated configuration seen in the plane of the outer surface of the skin defining the non-smooth face (3 '), in the lateral zone of the edge (14) with a crenated configuration, with alternating regions (18 and 18 ') of progressive increase and decrease, with inverse rates, of the thickness of said piece (2) towards the edge concerned, the regions ( 18) whose thickness increases corresponding to the projections (16) of the crenellated edge (14) and the regions (18 ') whose thickness decreases corresponding to the crenellations arranged between these projections (16), the through-passages (16' ) being located in the thickened ends of said projecting portions (16), at a maximum distance from the skin defining the smooth face (3) of the hollow surface piece (2), and shaped to receive an elongated member (17 ') forming pivotem ent.   9) Panel according to any one of claims 7 and 8, characterized in that the crenellated edge (14) and the alternating regions (18 and 18 ') to increasing and decreasing thickness towards the free ends of the projections (16) and crenellations have mutual configurations and proportions such that a panel (1) can be assembled with an identical panel (1) to form a composite panel (15), and in that the decreasing thickness regions (18 ' ) have a shape complementary to those of the increasing thickness regions (18) and the pivot axis (X ') is located in the plane of the outer surface of the skin defining the non-smooth face (3'), thus allowing a complete folding of one panel (1) on the other.   10) Panel according to any one of claims 1 to 9, characterized in that the surface hollow part (2) has at least one cutout (19) closed by a plate (19 ') of a material different from that forming said piece hollow (2), for example transparent.-16-   11) Panel according to any one of claims 1 to 10, characterized in that the localized deformations (3 ") of the non-smooth skin (3 '), which define in pairs segments (5') of reception sites ( 5), each have, at one of the openings of the segment (5 ') which it delimits, a wall portion (3 "') inclined towards said opening, so as to form with the wall portion inclined (3 "') of the other deformation (3") of the pair forming the segment (5') considered, a means of self-centering the elongate reinforcing element (7) during its introduction by sliding in said site segment (5 '), all the segments (5') of the same site (5) advantageously each having similarly inclined wall portions (3 '').   12) Container of cubic or rectangular parallelepiped shape, in particular of the container type, constituted, on the one hand, by a support frame comprising at least one base frame of generally rectangular shape, closed or not, and four uprights extending vertically to from the four corners of said rectangle, and, secondly, by walls closing the lateral sides, the bottom and top of said container, containing (20) characterized in that at least one of its walls, preferably at least some its side walls, top or bottom, preferably all its walls, consist (each) in at least one panel (1) according to any one of claims 1 to 11, assembled (s) removably with said support armature (21) and mounted (s) with their smooth faces (3, 1 ') directed towards the inside of said container (20).   13) Container according to claim 12, characterized in that the side walls are each formed by a composite panel (15 or 15 ') constituted by the assembly of two panels (1), the assembly connection at the edges crenelated (14) mutually interleaved of said two panels (1), being either hinged about a pivot axis (X), with through-passages (16 ') and a round-section connecting element (17') cooperating to form a hinge, being of rigid nature with through passages (16 ') and an assembly element (17') with polygonal section.   14) Container according to claim 13, characterized in that, the container (20) having a rectangular parallelepiped shape, each of the walls closing one of the two opposite long side sides consists of a composite panel (15) consisting of two panels (1) identical, hingedly interconnected and each incorporating at least two elongated reinforcements (7) extending in a direction parallel to that of the axis (X ') of the pivot joint, the reinforcements (7) ) of the lower panel (1) having at one of their ends (7 ') projecting a portion (10') of a pivoting hinge-type hinge or the like about an axis (X "). complementary (24) of said hinges being secured to an upright (23) of the support frame (21), the other ends (7 ') of the reinforcements of said panels being provided with means (10) for connecting or conl: act, protruding laterally from the hollow surface piece (2) and ap to cooperate, removably, with complementary connecting means formed or reported on the uprights (23) of each pair flanking one of the two walls of the two large opposite side sides of the container (20).   15) Container according to claim 13, characterized in that, the container (20) having a rectangular parallelepiped shape, each of the walls closing one of the two small opposite lateral sides consists of a composite panel (15 ') composed of two panels (1 ) which are identical or not rigidly connected to each other at their mutually interlaced crenated edges (14) via an elongated reinforcing element (17 ') passing through the passages (16') of the projecting parts (16 '). ) of said edges (14), each composite panel (15 ') having on at least one of its lateral sides, perpendicular to the axial direction (X) of the reinforcing element (17') ensuring the assembly of the two panels ( 1), projections (13) conferring on the relevant edge also a crenellated configuration and provided with through-passages (13 ') aligned with one another, said passages (13') receiving an elongated element (25) extending over the whole length side of said composite panel (15 ').   16) Container according to claim 15, characterized in that each of the two lateral sides of the composite panel (15 ') has projections (13) provided with passages (13') each receiving an elongated element (25), one of said elongated elements (25) co-operating with a corresponding upright (23) of the support armature (21), and if necessary with the base frame (22), to form a pivotally mounting about an axis (X "' ) for said composite panel (15 '), in the manner of a door or a leaf.   17) Container according to any one of claims 12 to 16, characterized in that the walls closing the bottom and the top of the container-18- (20) consist of panels (1) whose hollow surface piece (2) comprises along its opposite lateral sides corresponding to the lateral edges (6 and 6 ') of the panel (1), perpendicular to the direction of extension of the profiled sites (5) for receiving the transverse reinforcing elements (7), profiled sites lateral elements (11) for receiving two longitudinal reinforcing elements (12), possibly corresponding to the wings of a U-shaped frame (12 '), these longitudinal reinforcing elements (12) also ensuring axial locking of the transverse reinforcement elements ( 7).   18) Container according to any one of claims 12 to 17, characterized in that the base frame (22) has a U-shaped structure each of the segments has an internal part recess (22 '), these parts (22'). ) forming band-shaped bearing surfaces stably receiving the panel (1) forming the bottom wall.   19) Container according to any one of claims 12 to 18, characterized in that the two composite panels (15) forming the opposite side walls of the two long sides of said container (20), the two composite panels (15 ') forming the The opposite side walls of the two short sides and the two panels (1) forming the bottom and top walls are respectively mutually identical, in their structure, their dimensions and their constituent elements.   20) container according to any one of claims 12 to 19, characterized in that the base frame (22) is provided with wheels and a member (27) for attachment and wheelhouse.   21) Container according to any one of claims 10 to 19, characterized in that the base frame (22) is associated with a standard pallet type infrastructure.