BOX FOR USE WITH FOOD.

Abstract

A food container (1) is provided, comprising: a first container (2), a cover (3) for closing an opening (5) of the first container (2), a second container (4) having an opening (5) identical to that of the first container (2), the containers (2, 4) being stackable in a complementary manner and such that the first container (2) can close the opening (5) of the second container (4), characterized in that the container (1) comprises at least a pair of snap-fit ​​tabs (11, 12) pivotally articulated to the cover (3) on opposite first edges of the cover (3), each snap-fit ​​tab (11,12) has a proximal snap (13) for coupling with a fitting cavity provided below a periphery (14) of the opening (5) of the first container (2) and has a distal snap (17) for coupling with a fitting cavity provided below a periphery (14) of the opening (5) of the second container (4).,

Description

FOOD CONTAINER DESCRIPTION OF THE INVENTION The present invention relates to a food container for transporting and preserving food. Boxes intended for transporting food, notably for food to be eaten at school or work, or for storing food in a refrigerator or freezer, generally comprise a container to hold the food and a removable lid that can be attached to the container. Boxes are typically closed by a snap that secures the lid to a top that surrounds the container. This type of closure, notably found on plastic boxes, is achieved by pressing down on the lid, possibly followed by localized pressure applied to the snap. Some box closure systems also provide locking mechanisms with two to four hooks. These hooks, which are usually mounted movably on the lid, allow the box to be securely and airtight closed. It may be necessary to divide the contents of the box into compartments or provide several boxes to separate the food, for example, to differentiate lunch from dinner or to avoid mixing all the food in the same container. However, handling and storing multiple boxes can be complicated, and the user, especially a child, may quickly find themselves overwhelmed by the number of components, no longer knowing which lid goes with which container. The user may also lose a lid or one of the boxes. One of the objectives of the present invention is to provide a food container that is easy to use and that solves at least one of the disadvantages mentioned above. To this end, one objective of the invention is a food container comprising: a first container, a lid to close an opening of the first container, RPQZ ίΠ / ΖΖηΖ / Ε / ΥΙΛΙ - 2 a second container having an opening identical to that of the first container, the containers having complementary shapes and therefore being stackable so that the first container can close the opening of the second container, characterized in that the box comprises at least a pair of fastening snap tabs pivotally articulated to the lid on the first opposite edges of the lid, each fastening snap tab having a proximal snap to collaborate with a fastening snap cavity formed under the periphery of the opening of the first container and having a distal snap to collaborate with a fastening snap cavity formed under a periphery of the opening of the second container. The box can be used in a simplified configuration with only the first container and its lid. The lid secures the box by closing it with the proximal snaps of the locking tabs. In a more complex configuration, the box can be used with two stacked containers. The first container is secured by the proximal snaps, and the second container is secured by the distal snaps. The locking tabs, hinged to the lid, allow the two stacked containers to be closed and held together without adversely affecting the box's balance when used in its simplified version and placed flat on a table, for example. The food container may also comprise a pair of additional retaining snap tabs pivotally articulated to the lid over the second opposite edges of the lid, each additional retaining snap tab having an additional proximal snap to cooperate with the retaining snap cavity formed under a periphery of the opening of the first container. Another object of the invention is a food container, comprising: a first container, a lid to close an opening of the first container, a second container having an opening identical to that of the first container; the containers have complementary shapes and are therefore stackable. RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 3 such that the first container can close the opening of the second container, characterized in that the box comprises: a first pair of retaining snap tabs pivotally articulated to the lid on the first opposite edges of the lid, each retaining snap tab of the first pair having only a proximal snap to cooperate with a retaining snap cavity formed beneath a periphery of the opening of the first container, a second pair of retaining snap tabs pivotally articulated to the lid on the second opposite edges of the lid, each retaining snap tab of the second pair having only a distal snap to cooperate with the retaining snap cavity formed beneath a periphery of the opening of the second container. The food-grade coating may also include one or more of the features described below, considered alone or in combination. The box may comprise a seal interposed between the lid and the surrounding peripheral part that surrounds the opening of the first container. The length of the retaining snap tabs carried by the distal snaps can be such that once the lid has been placed on the first container, the ends of the retaining snap tabs and the bottom of the first container are in the same plane. The first container and the second container can be the same size. Alternatively, the second container can be a different height than the first container. One of the first and second containers can be made of an opaque material and the other can be made of a transparent or translucent material so that it is possible to see through it. Proximal and / or distal clasps can be made up of hooks having one end curved back on itself in the shape of a crossbar. RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ The snap fastening tabs and / or the snap fastening tabs - Four additional ones can be produced as a single piece with the lid. They can be pivotally attached to the lid by a respective hinge. Another objective of the invention is an assembly comprising the food container and an additional container configured to be housed in the first or second container. The additional box can be sized so that it can be housed in the middle of the first or second container in four different positions. The additional box may comprise an additional container whose shape is partially adapted to the interior of the first and / or second container. The additional container may have two opposite concave side walls that conform to the concave side walls of the first or second container; the concave side walls of the additional container are connected to each other by two opposite convex side walls that are shorter than the concave side walls. The additional box may comprise an additional lid provided with two corner tabs having a respective edge face extending tangentially from a respective vertex of the additional lid and conforming to a respective inner side wall of the first and / or second container. The first and / or second container may have at least two adjustment ribs that form an adjustment stop for a respective corner tab of the additional lid. The second container may have at least two adjustment ribs configured to fit within two complementary notches formed in the bottom of the first container to improve the stability of the stacking of the first container on top of the second container. DESCRIPTION OF THE FIGURES The invention will be better understood from the following description, with reference to the attached schematic figures which, by way of example, present one embodiment of this invention. Figure 1 shows an overall perspective view of a food container, in the closed and immobilized position according to a first RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 5 usage settings. Figure 2 is a cross-sectional view of the food-grade box of Figure 1, without an additional box inside. Figure 3 is an exploded view of an assembly comprising the food-grade box of Figure 1, and an additional box. Figure 4 is a view from the bottom of a first container of the food container of Figure 1. Figure 5 is a perspective view of the elements of the food container of Figure 1, in the closed and immobilized position according to a second configuration of use. Figure 6 is a perspective view of a lid for the food container shown in Figure 1. Figure 7 is a view from the bottom of the lid of the food container in Figure 6. Figure 8 is a perspective view of the additional box in Figure 3. Figure 9 is a top view of the additional box inside a second container of the food-use box of Figure 1. Figure 10 is a perspective view similar to Figure 1 for a second modality of the box for use with food. Figure 11 is a cross-sectional view similar to Figure 2 for a third modality of the box for use with food. In these figures, identical elements have the same reference numbers. The following modalities are examples. Although the description refers to one or more modalities, this does not necessarily mean that each reference relates to the same modality or that the features apply to only one modality. Simple features of the various modalities can also be combined or interchanged to provide other modalities. For the remainder of the description, the longitudinal, vertical, and transverse directions indicated in Figure 1 by the trihedron (L, V, T) that is fixed with respect to the RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 6 box 1 will be adopted in a non-limiting manner. The horizontal (L, T) and vertical (V) refer to the distribution of the elements in the figures corresponding to the box that is placed flat. Figures 1 to 9 show a first modality of a box 1 for use with food for transport and preservation of food. Box 1 comprises a first container 2, a lid 3 for closing an opening 5 of the first container 2, a second container 4 having an opening 5 identical to that of the first container 2, and at least one pair of fastening snap tabs 11,12 pivotally hinged to the lid 3 on the first opposite edges of the lid 3. The first and second containers 2, 4 are containers that respectively have an opening 5, at least one side wall 6, notably four side walls 6 in the case of a box 1 of a generally substantially parallelepiped shape, that is to say with two identical opposite side walls 6 or four identical side walls 6, and a bottom 7 (figures 2, 3, 4 and 9). The first and / or second container 2, 4 have, for example, at least two concave side walls 6 (Figures 4 and 9). The side walls defined as concave are side walls whose recesses substantially recede into the interior of the container 2, 4. The horizontal section of the first container 2 and the second container 4 thus presents a generally substantially rectangular or square shape with rounded corners and concave side walls 6. The first container 2 and the second container 4 have multiple axes of symmetry, such as two midlines (rectangle) or, for example, two midlines and two diagonals (square). Containers 2 and 4 have complementary shapes and are therefore stackable, with the first container 2 closing the opening 5 of the second container 4 (Figures 2 and 3). The interconnection is achieved by means of an outer peripheral rim 16 of the bottom 7 of the first container 2, which complements a surrounding peripheral part 15 that surrounds the opening 5 of the second container 4. In the first configuration, the first and second containers 2, 4 are the same size (Figures 2 and 3). Therefore, the first and second containers 2, 4 are RQQZ ίΠ / ΖΖηΖ / Ε / ΥΙΛΙ - 7 interchangeable. The same mold can be used to make both containers 2 and 4, which allows for a reduction in manufacturing costs. Containers 2 and 4 are produced, for example, each as a single piece, for example, from plastic, such as PP (polypropylene). Of the first and second containers, 2 and 4, one can be made of an opaque material and the other of a transparent or translucent material so that it is possible to see through it. Lid 3 is configured to close the opening 5 of the first container 2 (Figures 1 to 3 and 6). For example, it has a substantially flat top surface 9, surrounded by a slightly sloped periphery 10. Lid 3 may have an internal cavity that complements that of the first container 2 in order to increase the overall storage volume (refer to the cross-sectional view in Figure 2). The fastening snap tabs 11, 12 are pivotally articulated to the lid 3. The cover 3 and the fastening tabs 11, 12 can be manufactured as a single piece, for example, from a single material. The two fastening tabs 11, 12 can be pivotally attached to the cover 3 by a respective hinge 8 formed, for example, from a reduced thickness of material. In another example, the cover 3 and the fastening tabs 11, 12 are produced as a single piece from two materials, and the fastening tabs 11, 12 are pivotally attached by a respective hinge 8 made of a flexible material. According to other embodiments, the fastening tabs 11, 12 are attached to the cover 3 by a mechanical connection, for example, by snaps or bolts. Each retaining clasp tab 11,12 has a proximal clasp 13 to cooperate with a retaining clasp cavity formed beneath a periphery 14 of the opening 5 of the first container 2 so as to immobilize the first container 2 closed by the retaining clasp of the proximal clasps 13 of the first container 2. Each tab of the fastening clasp 11,12 also has a distal clasp 17 to cooperate with a shaped fastening cavity beneath a periphery 14 of the opening 5 of the second container 4 so as to immobilize the second container 4 RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 8 closed by the securing clasp of the distal clasps 17 to the second container 4. The second distal clasp 17 is located at a certain distance from the first proximal clasp 13 along the body of the securing clasp tabs 11,12 (figures 2 and 6). The fastening tabs 11, 12 extend from opposite first sides of the cap 3, notably in a substantially vertical direction, that is to say, a direction perpendicular to the plane of the upper surface 9. The bodies of the fastening tabs 11, 12 may be substantially curved, the curvature following the extension of the periphery 10. The fastening tabs 11, 12 may have material reinforcements above the periphery 10. The two fastening tabs 11, 12 may be identical to each other. The fastening cavities with which the proximal snaps 13 of the fastening tabs 11, 12 are configured to cooperate are connected, for example, to each other in a peripheral groove 35 formed beneath the peripheral surround 15 of the opening 5 of the first container 2 (Figures 4 and 9). In the illustrative example, the peripheral surround 15 has straight sides so that the peripheries 14 that cooperate with the proximal snaps 13 are wider at the midpoints of the side walls 6. The top of the peripheral surround 15 may be flat. Because the first and second containers 2, 4 have the same opening 5, the second container 4 has the same peripheral surrounding part 15 and the same peripheral groove 35 formed under the peripheral surrounding part 15, to cooperate with the distal snaps 17 of the fastening snap tabs 11, 12. The proximal snaps 13 and / or the distal snaps 17 may also be identical. The proximal snaps 13 and / or distal snaps 17 can be formed from hooks having one end curved back on itself in the form of a crossbar (Figures 3 and 6). The hooks project perpendicular to the bodies of the snap-on tabs 11, 12. The crossbars of the hooks engage in the snap-on cavities of the peripheral slot 35. The self-curved, bar-shaped ends allow for better acquisition in the peripheral slot 35. RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 9 In the example, once the lid 3 has been placed on the first container 2, the length of the retaining clasp tabs 11, 12 that carry the distal clasps 17 does not exceed the height of the first container 2 so that the first container 2 can be closed and immobilized by the lid 3 while still being able to be placed flat underneath in equilibrium, as shown in figure 5. In this example, the length of the retaining clasp tabs 11, 12 that carry the distal clasps 17 are such that, once the lid 3 has been placed on the first container 2, the ends of the retaining clasp tabs 11, 12 (for example, the hooks of the second distal clasps 17) and the bottom of the first container 2 are in the same plane, that is to say, they touch the support plane (figures 2 and 5). Grooves can form noticeably in the fastening snap tabs 11, 12 between the proximal snaps 13 and the distal snaps 17 (Figure 6). The fastening snap tabs 11, 12 can have a particular design; in this instance, they form the arms of a small man's restraint ring. The box 1 may further comprise a seal 21 interposed between the lid 3 and a peripheral surrounding portion 15 that surrounds the opening 5 of the first container 2 (Figures 2 and 3). The seal 21 is, for example, an extruded silicone seal. According to a modality that can be observed in figures 6 and 7, the lid 3 comprises a channel 22 formed on the periphery of lid 3 to accommodate the seal 21. The inner wall 23 of the channel 22 can be larger than the outer wall 24 in order to guide the interconnection of the lid 3 within the opening 5 of the first container 2. In order to obtain a sealed closure, and notably in order to compress the seal 21 when the box 1 is equipped with one, the box 1 may comprise a pair of retaining snap tabs 18, 19 pivotally articulated to the lid 3 on the second opposite edges of the lid 3, each additional retaining snap tab 18, 19 having an additional proximal snap 20 to cooperate with a shaped retaining snap cavity beneath a periphery 14 of the opening 5 of the first container 2 so as to immobilize the first container 2 closed by the retaining snap of the additional proximal snaps 20 to the first container 2 (Figures 6 and 7). The two additional snap fastening tabs 18, 19 can be RPQZ ίΠ / ΖΖηΖ / Ε / ΥΙΛΙ - 10 identical to each other. Cap 3 thus has two fastening snap tabs 11, 12 on the first two opposite sides and two additional fastening snap tabs 18, 19 on the other two sides. The two additional snap tabs 18, 19 can be produced as one piece with the cap 3 and the two snap tabs 11, 12. As with the snap tabs 11, 12, the two additional snap tabs 18, 19 can be pivotally attached to the cap 3 by means of a respective hinge 32. Similar to the proximal snaps 13, the additional proximal snaps 20 can be formed from hooks having one end curved back on itself in the form of a crossbar. The hooks project perpendicular to the bodies of the additional snap tabs 18, 19. The crossbars of the hooks engage in the snap cavities of the peripheral groove 35 formed beneath the peripheral surrounding portion 15 that surrounds the opening 5 of the first container 2. In the illustrative example, the surrounding peripheral portion 15 thus has four wider peripheries 14 located at the four midpoints of the side walls 6 of the first container 2 (Figure 9). These four peripheries 14 are identical and work with the identical hooks of the proximal snaps 13 of the retaining snap tabs 11, 12 and the additional proximal snaps 20 of the additional retaining snap tabs 18, 19 to immobilize the closed first container 2. Grooves can be formed on the additional fastening tabs 18, 19, notably between the additional proximal snaps 20 and the ends of the tabs 18, 19 (Figure 6). The additional fastening tabs 18, 19 can have a particular design and, in this instance, are produced in the form of arches, one of which symbolizes the mouth of the little man. The first container 2 can therefore be sealed in a sealed manner thanks to seal 21 and is immobilized at four points, while the second container 4, in this instance, is sealed at two points. RPQZ ίΠ / ΖΖηΖ / Ε / ΥΙΛΙ - 11 According to another embodiment which has not been shown, the box 1 comprises four fastening snap tabs 11, 12 pivotally articulated to the lid 3 on the four sides of the lid 3, each fastening snap tab 11,12 having a proximal snap 13 and a distal snap 17. In that case, the first and second containers 2, 4 can be closed and immobilized by the lid 3 at four points. Box 1 can additionally house an additional box 25 inside the first or second container 2, 4 as shown in Figures 8 and 9 or in Figure 3 which shows assembly 100 comprising the food-grade box 1 and the additional box 25. The additional box 25 can be observed by the user in the first or second container 2, 4 when the latter is transparent or translucent. The additional box 25 comprises an additional container 26 and an additional lid 27. The additional container 26 is made, for example, of plastic such as PP (polypropylene). The additional container 26 may have a shape that partially fits inside the first and / or second container 2, 4, enabling it to be held in position. For example, the additional container 26 has two opposite concave side walls that conform to the concave side walls 6 of the first or second container 2, 4 (Figures 8 and 9). The concave side walls of the additional container 26 are connected to each other by two opposite convex side walls that are shorter than the concave side walls. The horizontal cross-section of the additional container 26 thus has the general shape of a peanut. The additional lid 27 has, for example, the same general shape as the opening of the additional container 26. It can be made of polymer, such as a polyolefin polymer, notably LDPE (low-density polyethylene), in order to allow for a sealed closure. The additional cover 27 can be provided with two corner tabs 28, each having a respective edge face 29 extending tangentially to a respective corner of the additional cover 27 and conforming to a respective inner side wall 6 RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 12 of the first and / or second container 2, 4. In the case of an additional peanut-shaped box 25, the bode faces 20 extend tangentially from a vertex of a respective convex side wall. The corner tabs 28 are, for example, triangular in shape. Once the additional box 25 has been housed inside container 2, 4, the corner tabs 28 are oriented on the inside side of the additional container 26 and are brought into contact against the facing side walls 6 of the first or second container 2, 4, thereby holding the additional box 25 in position. The corner tabs 28 also make it easier to remove the additional lid 27 from container 26. The additional box 25 can be sized so that it can be housed in the middle of the first or second container 2, 4 in four different positions, specifically placed in the first or second container 2, 4 as in the drawing in Figure 9 or it can be rotated 90° or 180° or 270° about a center of rotation located in the center of container 2, 4. The first and / or second containers 2, 4 may additionally have at least two adjustment ribs 30 forming an adjustment stop for a respective corner tab 28 of the additional lid 27 (figures 3 and 9). The adjustment ribs 30 extend vertically over all or part of the side walls 6 of the first or second container 2, 4. The first and / or second container 2, 4 has, for example, four adjustment ribs 30 distributed between the midpoints of the four side walls 6, inside the containers 2, 4, at the level of the enlarged peripheries 14 of the surrounding peripheral part 15. The adjustment ribs 30 thus contribute to the adjustment of the additional box 25 in the first or second container 2, 4. These adjustment ribs 30 can be used to adjust the additional box 25 in conjunction with, or as an alternative to, the fact that the shape of the additional container 26 is partially conformed to the inside of the first and / or second container 2, 4. Furthermore, the second vessel 4 may have at least two fitting ribs 30 configured to fit within two complementary notches 31 formed in the bottom 7 of the first vessel 2 in order to improve the stability of the RPQZ ίη / ΖΖΠΖ / Ε / ΥΙΛΙ - 13 stacking of the first container 2 on top of the second container 4. These are, for example, the same fitting ribs 30 as those that provide the fit of the additional box 25 in the first or second container 2, 4. There are, for example, four complementary notches 31 formed in the bottom 7 of the containers 2, 4, for example, on the flange 16. The two containers 2, 4, if identical, thus have, for example, four adjustment ribs 30 that fit the additional box 25 into the first or second container 2, 4 and that adjust the assembly of the first container 2 with the second container 4 by cooperating with the complementary notches 31. Therefore, box 1 can be used in a simplified configuration, with only the first container 2 and its lid 3, the lid 3 immobilizing box 1 closed by the retaining clasp of the proximal clasps 13 of the retaining clasp tabs 11, 12 and, in this instance, the retaining clasp of the additional clasps 20 of the additional retaining clasp tabs 18, 19 (figure 5). This simplified version can be sealed when box 1 comprises a seal 21. The first container 2 of this single-level box 1 can thus be sealed and transported by itself. In a more complex configuration (Figure 1), the box 1 can be used with the two containers 2, 4 overlapping each other. The first container 2 is immobilized by closing the proximal snaps 13 and, in this instance, by the retaining snap of the additional snaps 20 of the additional retaining snap tabs 18, 19. The second container 4 is immobilized by closing the distal snaps 17 of the retaining snap tabs 11, 12. The locking tabs 11, 12 hinged to the lid 3 can close the two containers 2, 4 and keep them stacked together without adversely affecting the balance of the box 1 when used in its simplified version and placed flat on a table, for example. Figure 10 shows a second modality. This configuration differs from the first example in that here the second container 4 has a different height than the first container 2. The second container 4 of this RPQZ ίΠ / ΖΖηΖ / Ε / ΥΙΛΙ - 14 way it can be deeper or shallower than the first container 2. Thus, in figure 10, the second container 4 is taller than the first container 2. Figure 11 shows a third modality. Box 1 comprises a first pair of fastening snap tabs 5 pivotally articulated to the lid 3 on the first opposite edges of the lid 3 and a second pair of fastening snap tabs 33, 34 similarly pivotally articulated to the lid 3, on the second opposite edges of the lid 3. This modality differs from the previous examples in that, here, each retaining clasp tab of the first pair has only one proximal clasp 13 to collaborate 10 with the retaining clasp cavity formed under a periphery 14 of the opening 5 of the first container 2 and each retaining clasp tab 33, 34 of the second pair has only one distal clasp 17 to collaborate with a retaining clasp cavity formed under a periphery 14 of the opening 5 of the second container 4. The fastening snap tabs of the first pair can be produced 15 like the additional fastening snap tabs 18, 19 described in the first modality.

Claims

CLAIMS 1. A food container comprising: a first container, a lid for closing an opening of the first container, a second container having an opening identical to that of the first container, the containers having complementary shapes and therefore being stackable so that the first container can close the opening of the second container, characterized in that the container comprises at least a pair of fastening snap tabs pivotally articulated to the lid on opposite first edges of the lid, each fastening snap tab having a proximal snap for engaging with a snap cavity formed beneath a periphery of the opening of the first container and having a distal snap for engaging with a snap cavity formed beneath a periphery of the opening of the second container.

2. The food container according to claim 1, characterized in that it comprises a pair of additional retaining snap tabs pivotally articulated to the lid on the second opposite edges of the lid, each additional retaining snap tab having an additional proximal snap to cooperate with a retaining snap cavity formed under a periphery of the opening of the first container.

3. A food container comprising: a first container, a lid for closing an opening of the first container, a second container having an opening identical to that of the first container, the containers having complementary shapes and therefore being stackable so that the first container can close the opening of the second container, characterized in that the container comprises: a first pair of fastening snap tabs pivotally articulated to the lid on the first opposite edges of the lid, each fastening snap tab of the first pair having only one proximal snap to cooperate with the fastening snap cavity formed beneath a periphery of the opening of the first container, a second pair of fastening snap tabs pivotally articulated to the lid on the second opposite edges of the lid,Each retaining clasp tab of the second pair has only one distal clasp to cooperate with the retaining clasp cavity formed beneath a periphery of the opening of the second container.

4. The food container according to one of the preceding claims, characterized in that it comprises a seal interposed between the lid and a peripheral surrounding part that surrounds the opening of the first container.

5. The food container according to one of the preceding claims, characterized in that the length of the retaining snap tabs bearing the distal snaps is such that, once the lid has been placed on the first container, the ends of the retaining snap tabs and the bottom of the first container are in the same plane.

6. The food container according to one of the preceding claims, characterized in that the first container and the second container are the same size.

7. The food container according to any one of claims 1 to 5, characterized in that the second container has a different height than the first container.

8. The food container according to one of the preceding claims, characterized in that of the first and second containers, one is made of an opaque material and the other is made of a transparent or translucent material so that it is possible to see through it.

9. The food container according to one of the preceding claims, characterized in that the proximal and / or distal clasps are formed of hooks having one end curved over itself in the form of a crossbar.

10. The food container according to one of the preceding claims, characterized in that the fastening snap tabs and / or the additional fastening snap tabs are produced as one piece with the lid and are pivotally articulated to the lid by a respective hinge.

11. An assembly comprising a food container according to one of the preceding claims, characterized in that it comprises an additional container configured to be housed in the first or second container.

12. The assembly according to claim 11, characterized in that the additional box is sized so that it can be housed in the middle of the first or second container in four different positions.

13. The assembly according to any of claims 11 and 12, characterized in that the additional box comprises an additional container in the shape of which it partially conforms to the interior of the first and / or second containers.

14. The assembly according to claim 13, characterized in that the additional container has two opposite concave side walls conforming to the concave side walls of the first or second container, the concave side walls of the additional container being connected to each other by two opposite convex side walls that are shorter than the concave side walls.

15. The assembly according to any one of claims 11 to 14, characterized in that the additional box comprises an additional lid provided with two corner tabs having a respective edge face extending tangentially from a respective vertex of the additional lid and conforming to a respective inner side wall of the first and / or second container.

16. The assembly according to claim 15, characterized in that the first and / or second containers have at least two adjustment ribs forming an adjustment stop for a respective corner tab of the additional lid.

17. The food container according to any one of claims 1 to 10, characterized in that the second container has at least two adjustment ribs configured to fit within two complementary notches formed in the bottom of the first container to improve the stability of the stacking of the first container on the second container.

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