STACKABLE CONTAINER DEVICE

Abstract

A stackable container device comprising a platform having a horizontal base (12d), two longitudinal walls (12l), and two solid transverse walls (12t). This device includes two transverse walkways oriented horizontally on the inner side of the platform, forming, with a horizontal upper edge (28) of the platform walls at their corners where the longitudinal and transverse walls meet, a stacking support. Corresponding to each transverse wall (12t), the container device includes a reinforcement device (13) provided, on the one hand, with a section (30) extending at a right angle to the transverse wall (12t), forming the walkway, and on the other hand, with two folded sections (37, 39) for attaching the walkway (30), stabilizing it horizontally at the level of the upper edge.These folded panels include an intermediate panel (37) extending under the sidewalk and a fixing panel (39) extending vertically and stably from the intermediate panel.

Description

[0001] The present invention relates to a stackable container device.

[0002] More particularly, the invention relates to a stackable container device comprising a platform having a horizontal base, two longitudinal walls and two solid transverse walls, the container device further comprising two transverse walkways which are oriented horizontally on the inside side of the platform, determining, with a horizontal upper edge of the platform walls at its corners at the junction of the longitudinal and transverse walls, a stacking support.

[0003] An example of this type of device is found in document EP0870689, which describes the use of walkways folded and attached to the transverse walls and fixed to the ends of the longitudinal walls. The walkways are integrated into the platform. End transverse plates can be slid under the walkways. Each plate has three flaps: a central flap that corresponds to a central section of the corresponding transverse wall, and lateral flaps that are angled under the walkways, from the central flap towards the longitudinal walls. The top and bottom edges of the lateral flaps are cut at an angle to fit over chamfered upper corners of the platform.The assembly of these end cross plates is relatively complex because it requires careful control of the dimensional variations of both the platform and the plates themselves, even though the platform's chamfers and the angled cuts of the cross plates can facilitate centering. Furthermore, in addition to the need to precisely control the insertion clearances, sliding the plates under the curbs is an operation that can prove difficult to automate. Indeed, the curbs can present obstacles to plate insertion. Other container devices are known from documents WO 88 / 02724, GB 09467, FR 1 358 881, and US 2010 / 247272. The present invention aims, in particular, to improve existing solutions and / or to propose alternatives.

[0004] In addition to the constraints mentioned above in relation to one of the solutions in document EP0870689, other constraints may need to be considered when designing container devices with high mechanical resistance to stacking. Reinforcing stacking trays is beneficial, especially for products such as relatively dense fruits and vegetables, which increase stress during vertical stacking. However, it is crucial not to overly complicate their structure or design.

[0005] To this end, the invention relates to a stackable container device according to claim 1. In various embodiments of the container device according to the invention, one may optionally also use one and / or the other of the following provisions: The fixing panel extends vertically downwards; the sidewalk panel is connected to the corresponding transverse wall by being in continuity of material with this transverse wall and folded perpendicularly with respect to this transverse wall; the fixing panel is fixed to the inner face of the corresponding transverse wall; each reinforcement device is added to the platform and has on the one hand a main panel extending in relation to the entire corresponding transverse wall of the platform, from the bottom of the platform to the upper edge of the platform and on the other hand its intermediate panel which is connected at the top of the main panel as well as its fixing panel which is fixed to the inner face of the main panel; each added reinforcement device includes two lateral tabs connected vertically to the free lateral ends of the main panel by being against an inner face of the longitudinal walls of the platform;The two lateral tabs extend vertically from the bottom of the tray to the top edge of the tray; each added reinforcement device is made of cardboard of a different thickness than the tray receiving it.

[0006] Other objects, features and advantages of the invention will become apparent during the following description of several embodiments, given by way of non-limiting examples, with regard to the accompanying drawings.

[0007] Regarding the drawings: there figure 1 is a perspective view of a container device according to the invention in a first embodiment with its platform shown from a three-quarter top view and the isolated reinforcement devices before assembly to the platform; the figure 2 is a perspective view of the container device according to the invention in its first embodiment, with its tray shown flat before shaping, from a three-quarter top view, and the isolated reinforcement devices; the figure 3 is a perspective view of the container device according to the invention in its first embodiment, with its platform shown from a three-quarter top view and the reinforcement devices positioned for assembly to the platform; the figure 4 is a perspective view of the container device according to the invention in its first embodiment, with its tray shown from a three-quarter top view and the reinforcement devices positioned at the beginning of their assembly to the tray, at the moment of insertion of the reinforcement devices into the tray; the figure 5 is a perspective view of the container device according to the invention in its first embodiment, with its platform shown from a three-quarter top view, having the reinforcement devices positioned in the platform and after the beginning of a folding process to form sidewalks; the figure 6 is a perspective view of the container device according to the invention in its first embodiment, with its tray shown from a three-quarter top view and the reinforcement devices when their assembly to the tray is complete; the figure 7 is a perspective view of the type of figure 1 for a variant of the first embodiment of the container device according to the invention with its tray and its reinforcement devices isolated before assembly to the tray; the figure 8 is a perspective view of the type of figure 7 by representing the container device according to the invention in its embodiment variant of the first embodiment with the reinforcement devices positioned in the approach after a first lateral folding for their assembly to the tray; the figure 9 is a perspective view of the type of figure 8 by representing the container device according to the invention in its embodiment variant of the first embodiment with the reinforcement devices positioned at the beginning of their assembly in the tray; the figure 10 is a perspective view of the type of figure 9 by representing the container device according to the invention in its embodiment variant of the first embodiment, with the reinforcement devices positioned in the tray and after the start of a folding process to form sidewalks; the figure 11 is a perspective view of the type of figure 10 by representing the container device according to the invention in its embodiment variant of the first embodiment with the reinforcement devices as positioned in the tray when their assembly to the tray is finalized; the figure 12 is a top view of the container device according to the invention in a second embodiment with its tray shown flat before shaping, the reinforcement devices being integrated of material with the rest of the tray; the figure 13 is a perspective view of the container device according to the invention in its second embodiment, with its tray shown from a three-quarter top view and the reinforcement devices positioned before their shaping, after the shaping of the rest of the tray; the figure 14 is a perspective view of the type of figure 13 by representing the container device according to the invention in its second embodiment with the reinforcement devices positioned after the start of a sidewalk shaping fold; the figure 15 is a perspective view of the type of figure 14 by representing the container device according to the invention in its second embodiment with the reinforcement devices shown after a final folding to conform the reinforcement devices with their sidewalls; the figure 16 is a principle view in longitudinal section showing a folding variant of the first embodiment with added reinforcement devices.

[0008] Referring to the figures, reference numeral 10 designates a container device according to the invention, comprising a cardboard tray 12 and two reinforcing devices 13. In the various figures, the same reference numerals designate identical or similar elements. The tray and the reinforcing devices are shown as being made of cardboard, but they may be made of any semi-rigid material having equivalent properties of mechanical strength and foldability.

[0009] In the embodiment shown in the figures, the container device 10 is essentially rectangular in shape, with its platform 12 having a rectangular horizontal base 12D. The length of this base determines the longitudinal direction, and the width corresponds to the transverse direction. The height of the platform is, for example, approximately one-third of its width. The container device thus serves as a reference frame for defining the longitudinal and transverse directions.

[0010] Such a tray 12 has standard dimensions typically used to hold fruits or vegetables. For example, such a tray can hold melons. When transporting melons, if containers are stacked, their vertical compression resistance must be significant because melons are relatively dense and heavy. Indeed, the trays stacked, for example, on a pallet, must support a very significant mass, especially those at the bottom of the stack, given the weight of the filled trays stacked to the top.

[0011] The container devices 10 according to the invention are stackable and intended for this purpose, subject to the constraints explained above. Each container device 10 has its own tray 12, which comprises two longitudinal walls 12L and two solid transverse walls 12T. These transverse walls 12T are substantially rectangular and are solid, being connected vertically to the longitudinal walls 12L and horizontally to the bottom wall 12D. The tray 12 is made of cardboard with parallel corrugations arranged longitudinally. In the transverse walls 12T, the corrugations are aligned vertically for good resistance to vertical compression of the transverse walls. The reinforcement devices 13 are also made of cardboard with parallel corrugations arranged parallel to the corrugations of the tray.

[0012] The two transverse walls 12T of the tray are each provided with at least one upper stacking tenon 16 projecting from the horizontal upper edge of the transverse walls. In practice, the dimensions of the tenons 16 are standardized, as are their locations. Thus, the various manufacturers of stackable trays use these standard dimensions and locations. The tray 12 includes a notch 18 at the junction of the tray's base 12D and each transverse wall 12T to receive a corresponding stacking tenon 16 when trays are stacked.

[0013] The tray 12 has longitudinal walls 12L that define a vertical recess 12V along part of its length and part of its height, centered in the middle of the length of this longitudinal wall. Each vertical recess 12V is open with a flare at the top of the tray, above a central area at the bottom of the longitudinal wall. Such a recess 12V is of a conventional type and does not require further description. Furthermore, the longitudinal walls 12L are equipped at the top of their recess 12V with an upper flap 12R, which also does not require further description.

[0014] Plateau 12 is made from a blank that was initially flat, like the figure 2 represents it. Each longitudinal wall 12L has an external side wall 22 that runs the entire length and height of the platform, except for the central portion at the top of the external side wall, which defines the vertical recess. Furthermore, each longitudinal wall 12L has two internal panels 24 that are initially attached to each lateral end of each transverse wall 12T. The connection of each internal panel 24 to its transverse walls 12T is made by folding along a vertical fold line 26. The figure 2 clearly shows each fold line 26 on the initial plate, defining the cardboard side that serves as the base for constructing the tray. Each inner panel 24 extends along part of the length of the corresponding longitudinal wall 12L and along the entire height of this longitudinal wall to those end zones which are longitudinally on each side of the central zone at the bottom of the longitudinal wall.

[0015] At each end of the platform, a horizontal top slice 28 is defined by the upper faces of the platform walls at its corners where the longitudinal and transverse walls meet. These corners have vertical fold lines 26. Each top slice 28 defines a stacking support at the top of the end areas of the longitudinal walls 12L and at the top of the transverse walls 12T, in the center of which the tenons 28 provide a break in this top slice.

[0016] The container arrangement further includes two transverse walkways 30 oriented substantially horizontally, forming a stacking support with the horizontal upper section 28 of the platform walls at its corners, where the longitudinal and transverse walls meet. The transverse walkways 30 are adjacent to the upper ends of the transverse walls 12T, these upper faces forming portions of the upper section 28 of the platform. The transverse walkways 30 are oriented towards the interior of the platform from these upper faces. The transverse walkways 30 may be slightly inclined downwards and inwards towards the platform by a few degrees.

[0017] The tray 12 is formed from the blank by folding the outer side walls 22 along a horizontal folding axis so that each outer side wall 22 is perpendicular to the tray's base 12D. Each inner panel 24 is folded perpendicularly to its transverse wall 12T by folding along the corresponding folding line 26. Finally, each transverse wall 12T, fitted with its inner panels 24 folded at right angles, is folded along a horizontal folding axis so that each transverse wall 12T is perpendicular to the tray's base 12D while the inner panels 24 are slid parallel to the side walls 22, along the inner faces of these walls. The inner panels 24 are bonded to the corresponding end areas of the outer side walls 22. This bonding method is conventional. The tray 12 can be formed using a conventional forming machine.

[0018] In general, corresponding to each solid transverse wall 12T of the platform, each of the reinforcement devices 13 is provided on the one hand with a panel 30 extending at a right angle to the corresponding transverse wall 12T, forming the corresponding sidewalk, and on the other hand with two folded panels for attaching the sidewalk panel 30 to the container device, stabilizing this sidewalk horizontally at the level of the upper horizontal edge 28. These folded panels include an intermediate panel 37 extending under the sidewalk and a fixing panel 39 extending vertically from the intermediate panel, being stable relative to the corresponding transverse wall.

[0019] In the first embodiment as represented in the figure 1 to the figure 6 The two reinforcement devices 13 are cardboard pieces that are added to the tray. Each reinforcement device 13 intended to be added to the tray 12 has on one side a main panel 33 and on the other side, connected at the top of the main panel, the sidewalk 30 which is formed by a panel folded at a right angle to the main panel.

[0020] Each added reinforcement device 13 includes a notch 35 designed to receive, when the container devices 10 are stacked, the corresponding stacking tenon 16 belonging to the container device 10 adjacent to the reinforcement device 13 in question. This tenon 16, by engaging in the notch 35 and the corresponding notch 18 of the platform, allows the stacked container devices to be secured.

[0021] Each reinforcement device 13 has its own attachment points which, in addition to the attachment to the main panel 33, allow the sidewalk to be fixed within the container device by securing it horizontally. These attachment points lock the sidewalk panels 30 in a horizontal position relative to the rest of the container device, preventing the sidewalks from sagging when these devices are stacked.

[0022] These additional attachment bodies are based on the same general principle for the different modes of implementation.

[0023] In the first illustrated embodiment of the figure 1 to the figure 6 Each added reinforcement device 13 includes, in its attachment members, the two folded attachment panels for the sidewalk panel. In these two panels, on the one hand, the intermediate panel 37 is intended to extend under the sidewalk 30, and on the other hand, the fixing panel 39 is intended to extend downwards from the intermediate panel 37, being fixed to the inner face of the main panel 33. When the reinforcement device 13 is in the platform 12, the intermediate panel 37 extends inclined under the sidewalk panel 30, being oriented, from a free end of the sidewalk panel on the inner side of the platform, on one side towards the corresponding main panel 33 and on the other side towards the bottom 12D of the platform.

[0024] The operation of the container device 10 according to the first embodiment is already partly apparent from the preceding description and will now be detailed.

[0025] In the first phase of the assembly example, as shown in the figure 3 The reinforcement devices 13 are positioned in approach for their assembly to the platform 12. The reinforcement devices 13 are presented vertically, above and substantially in planes parallel to the transverse walls 12T. The reinforcement devices 13 are then ready to be lowered vertically towards the bottom wall 12D of the platform.

[0026] In the second phase of the assembly example, as shown in the figure 4 At the beginning of their assembly onto the platform, the reinforcement devices 13 are positioned for insertion into the platform 12. They are lowered approximately parallel to the corresponding transverse wall 12T and then brought together by horizontal translation, possibly combined with pivoting around a horizontal axis, for bonding to the inner face of their transverse wall. Thus, each reinforcement device 13 is inserted into the platform 12 with its main face 33 extending along the entire length of the corresponding transverse wall 12T of the platform, from the bottom 12D of the platform to the upper edge 28 of the platform. Advantageously, the insertion movements are relatively simple and allow for mechanization using a machine that can then be of robust design due to its simple architecture and economical manufacture.

[0027] In the third assembly example phase, the top of the reinforcement devices is transformed. The reinforcement devices are folded back towards the inside of the tray.

[0028] There figure 5 This shows the beginning of the folding process that shapes the sidewalks 30. This folding is achieved through pivoting of transverse and horizontal axes. The sidewalk 30 is pivoted relative to the upper end of the main panel 33 to achieve a horizontal orientation. The intermediate panel 37 is pivoted relative to the free end of the sidewalk panel 30, opposite the main panel, to be oriented at an angle beneath the sidewalk. The fixing panel 39 is pivoted relative to the free end of the intermediate panel 37, opposite the sidewalk 30, to be oriented vertically beneath said sidewalk, directed downwards and positioned against the main panel 33 with adhesive.

[0029] Thus, as represented in the figure 6 The assembly of the platform 12 and the reinforcement devices 13 is complete. To summarize, the sidewalk section 30 is folded at a right angle, horizontally, and directed towards the inside of the platform. The sidewalk section 30 cantilevers away from the base 12D, horizontally flush with the upper edge 28 of the corresponding corners of the platform.

[0030] To recap, the intermediate panel 37 extends under the sidewalk 30, and the fixing panel 39 extends downwards from the intermediate panel 37, being fixed to the inner face of the main panel. The intermediate panel 37 is inclined under the sidewalk panel, oriented, from a free end of the sidewalk panel on the inside of the platform, on one side towards the corresponding main panel and on the other towards the bottom of the platform. It thus acts as a brace to stiffen the sidewalk along its entire length and maintain its horizontal orientation. The fixing panel 39 stabilizes the assembly in position. To save material, the fixing panel is of reduced height, as shown in the figures; the bonding ensures good assembly strength even if the bottom of the fixing panel 39 does not bear against the bottom of the platform.

[0031] Several advantages can be derived from the platform reinforcement solution using the reinforcement device 13 with its crush-resistant sidewalk 30. The sidewalks 30 are stabilized, providing good resistance when stacking the container devices.

[0032] In addition, with the reinforcement devices 13 which are added, the main panels 33 provide an improvement in the vertical compression resistance of the container device, by doubling the transverse walls of the tray.

[0033] Advantageously, the dimensional variations of both the platform and the reinforcement device are easily managed, resulting in a stackable container that is both robust and easy to assemble. Furthermore, the geometry of the reinforcement device minimizes material waste by reducing offcuts.

[0034] Advantageously, the geometry of the reinforcement system incorporating a walkway allows this walkway to occupy minimal space within the platform. Indeed, this walkway is sturdy without being too bulky and without being difficult to secure firmly within the platform.

[0035] Advantageously, each added reinforcement device 13 can have a different thickness than the thickness of the tray 12 receiving it. Thus, to obtain a container device with good vertical compression resistance characteristics, it is possible to use a base tray made of, for example, relatively thin cardboard with single fluting, and to choose to use an added reinforcement device 13 that is thicker and, for example, has double fluting.

[0036] Advantageously, the reinforcement devices 13 do not interfere with the proper use of the stacking support tenons 16.

[0037] The container device can be formed using a standard forming machine for the tray and a specific forming machine for the added reinforcement. The same machine can be used to form the added reinforcement and assemble it into the tray.

[0038] As an alternative assembly method, the added reinforcement device can have its sidewall pre-formed before assembly to the platform. The added reinforcement device can be assembled to the corresponding transverse wall of the platform before the platform is formed, this shaping of the platform being carried out when the reinforcement devices are already added to the side to be formed.

[0039] The assembly of the reinforcement devices within the tray can be carried out quite flexibly, given that the tray can be of a standard type. For example, the main face of each reinforcement device can be lowered almost vertically, more or less parallel to the corresponding transverse wall of the tray, and then, when the bottom of the main face is approaching or touching the bottom, the reinforcement device can be laterally glued against the transverse wall.

[0040] The mechanization of the assembly can be modular, for example by retaining an existing tabletop forming machine for standard tabletops. This mechanization can be relatively simple due to the straightforward assembly movements of the reinforcement device within the tabletop.

[0041] In the variant of the first embodiment as represented in the figure 7 to the figure 11 Each added reinforcement device 13 comprises, in addition to the configuration described above, two lateral tabs 43 which are connected vertically to the free lateral ends of the main panel 33. Each tab 43 is against an inner face of the longitudinal walls of the tray. A vertical fold 46 is present at the intersection of the main panel 33 and each lateral tab. The two lateral tabs 43 extend vertically from the bottom 12D of the tray 12 to the upper edge 28 of the tray.

[0042] In the first phase of the assembly example, as shown in the figure 8 The reinforcement devices 13 are positioned for assembly with the platform 12, after the lateral tabs 43 have been bent perpendicularly to their adjacent main face. The reinforcement devices 13 are presented vertically, above and substantially in planes parallel to the transverse walls 12T, with the tabs 43 on the inside of the platform. The reinforcement devices 13 are then ready to be lowered vertically towards the back wall 12D of the platform, the lateral tabs 43 sliding against the inner faces of the inner panels 24 belonging to the longitudinal walls 12L of the platform.

[0043] The remaining assembly operations are carried out on the same principle as described previously.

[0044] In the second assembly phase, at the beginning of their attachment to the platform, the reinforcement devices 13 are positioned for insertion into the platform 12. They are lowered approximately parallel to the corresponding transverse wall 12T. Then, when the bottom of the main faces is close to the base 12D, the reinforcement devices are brought together with a horizontal translation combined, if necessary, with a pivoting around a horizontal axis for bonding to the inner face of their transverse wall. Following the same principle as previously explained, each reinforcement device 13 is inserted into the platform 12 with its main face 33 extending along the entire length of the corresponding transverse wall 12T of the platform.

[0045] There figure 9 corresponds to the figure 4 and shows said reinforcements 13 at this beginning of the assembly to the tray. Advantageously, the insertion movements are still relatively simple. The lateral tabs 43 triple the thickness of the end areas at the corners of the container device.

[0046] The lateral tabs 43 can be glued to the longitudinal walls. If the tabs are glued before the reinforcement device 13 is inserted into the plate 12, the reinforcement is lowered with the tabs 43 pressed towards their main face. If the tabs are glued after the reinforcement device 13 is inserted into the plate 12, during the gluing process, the tabs 43 are pressed towards their main face by pivoting within the plate along the fold 46. The tabs 43 are glued before the side rails 30 are folded down to their horizontal working position.

[0047] In the third assembly example phase, the top of the reinforcement devices 13 is folded inwards towards the inside of the tray. figure 10 corresponds to the figure 5 and shows the beginning of the folding process that allows the shaping of the sidewalks 30. The folding is carried out using the same pivots of transverse and horizontal axes as described previously. The sidewalk 30 is pivoted to a horizontal orientation. The intermediate panel 37 is pivoted relative to the free end of the sidewalk panel 30, ultimately being inclined under the sidewalk, passing between the lateral tabs 43. The fixing panel 39 is pivoted relative to the free end of the intermediate panel 37, passing between the lateral tabs 43, ultimately being oriented vertically under the said sidewalk, directed downwards and positioned against the main panel 33 with adhesive.

[0048] Thus, as the figure 11 The assembly of the platform 12 and the reinforcement devices 13 is complete. To summarize, the sidewalk section 30 is folded at a right angle, horizontally, and directed towards the inside of the platform. The sidewalk section 30 cantilevers away from the base 12D, horizontally flush with the upper face of the lateral tabs 43 on one side and the upper edge 28 of the corresponding corners of the platform on the other.

[0049] A second embodiment of the container device 10 is shown in the figure 12 to the figure 15 This container device differs from the first embodiment in several characteristics. The reinforcement devices 13 are different in that they have sections of sidewalk integrated with the rest of the platform, rather than being added separately.

[0050] Thus, according to this second embodiment, the sidewalk panel 30 is directly connected to the corresponding transverse wall 12T, being in continuity with the material of this transverse wall and folded perpendicularly to it. The fixing panel 39 is fixed to the inner face of the corresponding transverse wall 12T.

[0051] For the second embodiment of the container device, the assembly operations for attaching the reinforcement devices 13 to the tray 12 differ little from the operations described in relation to the first embodiment. The differences are described below.

[0052] At the very beginning of the assembly, as shown in the figure 13 , it is a matter of conforming the longitudinal walls and the transverse walls, the latter including their sidewalk section 30, their intermediate section 37 and their fixing section 39.

[0053] There figure 14 corresponds to the figure 5 and to the figure 10 to fold the sidewalk panel 30 into shape by pivoting it along the upper edge of the corresponding transverse wall 12T. The intermediate panel 37 and the fixing panel 39 are also folded by pivoting along horizontal folding axes.

[0054] As depicted in the figure 15 The sidewalk panels 30 are folded down to be horizontal on the inside side of the platform. The intermediate panel 37 is inclined under the sidewalk panel 30, as in the cases explained previously. The fixing panel 39 is glued to the inner face of the corresponding transverse wall 12T, extending downwards towards the bottom 12D of the platform.

[0055] In another variant represented at the figure 16Compared to the first embodiment, the fixing panel 39 is still glued to the inner face of the main panel 33, but it extends upwards, under the root of the sidewalk panel.

[0056] In this variant, the sidewalk panel 30, the intermediate panel 37 and the fixing panel 39 are folded into shape before the transverse walls and the longitudinal walls are folded into shape.

[0057] In an alternative not shown on the basis of the second embodiment, the sidewalk panel 30, the intermediate panel 37 and the fixing panel 39 are attached directly to the corresponding transverse wall 12T but the fixing panel is folded with the fixing upwards rather than downwards.

[0058] More generally, the external side walls may have a horizontal top, located below the level of the top of the internal panels involved in determining the upper edge of the plateau.

[0059] The advantages of robustness and ease of implementation of the container device are essentially the same for the different embodiments.

[0060] In an alternative configuration not shown, the upper stacking lugs are arranged differently, for example, with two of them at the top of the transverse walls. The modifications to the notches and recesses are consistent with this arrangement.

Claims

1. A stackable container device for fruits and vegetables to form a stack of such container devices including a tray (12) having a horizontal bottom (12D), two longitudinal walls (12L) and two solid transverse walls (12T), the container device further comprising two transverse platforms that are oriented horizontally on the inner side of the tray while determining, with a horizontal upper edge (28) of the walls of the tray at its corners, a connection with the longitudinal and transverse walls, a stacking support for said stacking of said container devices, and, corresponding with each solid transverse wall (12T), the container device (10) comprises a reinforcing device (13) provided on the one hand with a face (30) extending at a right angle relative to the transverse wall (12T) while making up the corresponding platform, and on the other hand, two folded faces (37, 39) attaching the platform face (30) within the container device while stabilizing this platform horizontally at the horizontal upper edge (28), these folded faces comprising an intermediate face (37) extending below the platform and a fastening face (39) extending vertically from the intermediate face while being stable relative to the corresponding transverse wall, the intermediate face (37) extending inclined below the platform face (30) while being oriented, from a free end of the platform face on the inner side of the tray, on the one hand toward the corresponding transverse wall (12T) and on the other hand toward the bottom (12D) of the tray to serve as a brace for the platform face, each upper edge of the transverse walls defining a stacking support for said stack of said such container devices, the fastening face (39) being positioned against the primary face (33) with adhesion for a solid assembly, the height of the fastening face being reduced such that the bottom of the fastening face (39) does not bear on the bottom of the tray to save material, characterized in that the container device comprises an upper stacking wedge post (16) for said stacking of said such container devices on each of the two solid transverse walls (12T), protruding from the horizontal upper edge of the transverse wall, and a notch (18) of the connection of the bottom and the transverse wall to receive a corresponding post (16).

2. The container device according to the preceding claim, characterized in that the fastening face (39) extends vertically downward.

3. The container device according to any one of claims 1 and 2, characterized in that the platform face (30) is connected to the corresponding transverse wall (12T) while being in material continuity with this transverse wall and folded perpendicularly relative to this transverse wall.

4. The container device according to the preceding claim, characterized in that the fastening face (39) is fastened to the inner face of the corresponding transverse wall (12T).

5. The container device according to any one of claims 1 to 2, characterized in that each reinforcing device (13) is attached in the tray (12) and has a primary face (33) extending across from the entire corresponding transverse wall (12T) of the tray, from the bottom (12D) of the tray and up to the upper edge (28) of the tray, on the one hand, and its intermediate face (37) connected at the top of the primary face (33) as well as its fastening face (39), which is fastened to the inner surface of the primary face, on the other hand.

6. The container device according to the preceding claim, characterized in that each attached reinforcing device (13) comprises two side tongues (43) vertically connected to the free side ends of the primary face (33) while being against an inner face of the longitudinal walls of the tray.

7. The container device according to the preceding claim, characterized in that the two side tongues (43) extend vertically from the bottom (12D) of the tray and up to the upper edge (28) of the tray.

8. The container device according to any one of claims 5 to 7, characterized in that each attached reinforcing device (13) is made from cardboard with a thickness different from the thickness of the tray (12) receiving it.