ES2456492T3 - Lid part for a container - Google Patents

Abstract

Cover part for a container for baby food powder, said cover part (2) substantially made of a thermoplastic material and comprising a connection part (5) for connection to an edge of a container part and a lid ( 4) that said cover (5) is rotatably connected to said cover (4) having a central part and a circumferential cover flange (8) extending from said central part (2), said connection part (5) comprising a wall (11) provided with an access opening (6) of a size sufficient to allow a hand to pass with a shovel to recover the contents, an area of said access opening being at least 50 cm2, and a first circumferential flange (7) surrounding said access opening (6) and extending outwardly from said wall (11), said first circumferential flange (7) has a first outer perimeter near said wall (11) and a second outer perimeter near from the edge of said pri mer flange (7), so that said first flange (7) narrows outwardly from said wall (11), characterized by the fact that said lid flange (8) having a first internal perimeter near said part central (2) and a second internal perimeter near the edge of said lid flange (8), said second internal perimeter of said lid is smaller than said first perimeter near the edge of said lid flange (8), so that said lid flange (8) narrows inwardly from said central part (2), where the perimeters of said lid flange (8) and the first flange (7) are mutually adapted to allow said lid (4) to close in a sealed manner in said first flange (7) of said connecting part (5) so that the cooperative conical shapes of the lid flange (8) and the first flange (7) pull the lid (4) onto the wall ( 11) of the connecting part (5) where an additional seal is provided between the edge d the cover flange (8) and the surface of the wall (11) surrounding the first flange (7).

Description

 Lid part for a container

Background

 [0001] The present invention relates to a lid portion for a container. [0002] W02007 / 142522 of the present applicant discloses such a cover part. In the container assembly described in that application, a container part has a circumferential wall that can be made substantially of cardboard coated with a material for sealing the circumferential wall of the container content, and a lid part fixed to an edge of the container part. The applicant uses the container for baby food powdered milk. The cover part has a connection part and a cover that is articulated or rotatably coupled to the connection part. The cover rests on the connection part. The closure of the cover in the connection part can be improved. [0003] W02008 / 034172 discloses a resealable flexible container lid with pivotable second part. The second part closes around an edge surrounding an opening of the container. The disclosure calls it "tangential traction". The edge forms an integrally formed part of the vessel wall. The second part should pivot around, or turn upwardly with respect to, a first part connected to the lid. This may require almost elastomeric behavior. This construction puts a load on the lid, particularly when frequent opening and closing is required while maintaining a good seal. In addition, the lid does not engage another part through a hinge. [0004] EP-1,625,948 discloses a liquid paint container having a plastic wall with an integral formed peripheral flange. It has a plastic lid with a grooved wall to receive the flange and an inward circumferential projection that locks under said peripheral flange, providing a pressurized action. The lid is not rotatably connected to the rest of the container. [0005] JP-2004-001815 discloses a plastic container with a separate lid. The described embodiments have several locking edges and corresponding circumferential projections and recesses that make these caps too bulky to open in daily use. [0006] JP-2006-282199 discloses a container for powdered milk, for example. The container has a separate lid. This lid has a second, circumferential skirt fixed to the outer wall of the container and a first circumferential skirt connected to the lid. A band, removable circumferential, connects the first and second skirts. The first skirt has an inward projection hitch behind a circumferential projection part outside the vessel wall. [0007] US-6,889,867 discloses a plastic container comprising a lid with a closing flap to seal the container in a sealed manner to avoid moisture loss, that is to say that moisture leaves the container. The lid is placed on the rest of the container and rotates resulting in corresponding threads. The sealing of the lid on the rest of the container is achieved using a crest. The lid also has a relatively small circular dispensing hole with a wall with grooves through which cleaning wipes can be passed and exiting the container. The dispensing hole has a circumferential wall to receive a sealed circumferential wall of the closure flap. The lid is designed to have moisture inside the container. To that end, the opening is round and remains as small as possible. [0008] US4284200 discloses a safety dispensing closure for children. The lid has an edge and the opening is surrounded by an edge. Both edges have an extension lip so that the lid breaks the surrounding edge of the opening. The lid has a handle that is closely spaced from a fulcrum so that a means is needed to remove the lid, thus providing a child safety lock. [0009] US6761279 discloses a packaging for viscous food product, according to the preamble of claim 1. The packaging has a container and a closure fit on the container. The closure as a base and a lid. The base has specific provisions to cooperate with provisions in the container to fix the base to the container so that the edge of the container is left free for the sealing of a sealing membrane at the edge. Fixing provisions make this packaging relatively complex. In addition, the sealing of the lid can be improved. In addition, the stacking of these packages can compromise the sealing of the lid.

Summary of the invention

  [0010] The invention is intended to provide a lid portion for a container that is easy to open and close in use. daily, according to claim 1.   [0011] An advantage of the invention is to provide a lid portion that provides a good seal of a container, preferably airtight, preferably also after frequent daily use.

[0012] Another advantage of the invention is to provide a lid portion that allows a container which produces a minimum amount of waste.

[0013] The present invention relates to a container for powdered baby food. In such a container, it is important that no foreign objects are introduced into the container and contaminate the dust. On the other hand the container needs to be opened repeatedly.

[0014] Powdered baby formula milk is normally recovered from the container using a measuring spoon. The measuring spoon is frequently included in the package. Therefore, in order to properly recover dust from the container, the access opening should be as large as possible.

[0015] All these demands seem to be difficult to gather in a single container. For example, the easiest way to provide good content sealing, however, is to make the access opening as small as possible. Additionally, a better seal is normally achieved with (semi) permanent closing means.

[0016] The cover part of the invention, however, makes it possible. The present invention provides a lid portion for a container with an access opening that is large enough so that the contents (eg dust) can be examined in the container, while having a seal that effectively reduces the entry of foreign objects. It was surprisingly found that the present cover part with a large access opening could be repeatedly closed while maintaining a good seal.

[0017] The lid portion of the present invention provides a good seal that prevents foreign objects from reaching a container it is covering. And yet, the lid of the lid parts needs to be opened and closed frequently more times per day, and provides a good seal after frequent use. Preferably, the sealing is achieved in an easy manner. In fact, it was discovered that in one embodiment, approximately 2-5 N of opening force would be acceptable. For the closing force, in one embodiment a force of approximately 6 -15 N would be acceptable.

[0018] Since the container it is covering needs to be disposable, it is preferably economical to produce in large quantities and provide minimal waste. In addition, it would be beneficial if the lid part is easy to handle in production as well as in the production of a complete container. Additionally, a good seal is particularly desired if the contents of the packaging are hygroscopic. A better closure will reduce the exchange of air (with high water content) between the inside and outside of the container, thus reducing the formation of nodules in the hygroscopic material, for example baby milk powder. Therefore, the present invention is particularly useful for storing baby powder milk in an environment with a tropical climate.

[0019] The lid portion of the invention can be used for containers with for example a cardboard wall, but is not limited to such use. Normally, such a cardboard wall is covered or coated with one or more sealing layers to seal the contents of the container from environmental influences. An example of such a package is described in W02005075314 and W02007142522 of the applicant.

[0020] The lid portion is particularly suitable used with a dust storage container. In fact, it is well suited for storing hygroscopic powder, in particular food products such as baby milk. Manual opening and closing preferably require very limited effort and / or force. Preferably, the lid can be opened manually with one hand. This is particularly relevant for the packaging of baby milk powder, since the mother is preferably able to open and close the package while carrying the baby.

[0021] To prevent a hand from coming into intense contact with the contents, the lid is preferably provided with gripping provisions for gripping and retaining the scoop measuring spoon. This also limits the choice of dimensions. The dimensions of the stem of such a spoon are therefore limited. On the other hand, this can also limit the dimensions of the packaging container. The spoon stem in one embodiment is long enough to allow a person to reach the bottom of the container. Said first circumferential flange has a first perimeter near said connection part and a second perimeter near the edge of said flange at one end of said flange outward from said connection part, said second perimeter of first circumferential flange is larger than its first perimeter, and said cover has a first internal perimeter near said cover and a second internal perimeter near the edge of said cover flange, said second, internal perimeter of said cover is smaller than said first perimeter near the edge of said lid flange, said perimeters of said lid flange and first flange mutually adapted to allow said lid to be sealed in a sealed manner on said first flange of said connection portion with its lid flange surrounding said first flange. This allows for easy closing and opening, especially for daily use. Also, by sealing the lid flange around the first flange, it is easier to release the lid portion after molding.

[0022] The first flange on the connecting part together with the lid flange in one embodiment provides a pressure-sealed seal. The corresponding lid flange (sealing flange on the lid) thus joins with the other first flange so that there is proper sealing interference. This sealing interference can provide adequate sealing pressure to prevent wet air from entering or leaving the container or can be implemented to ensure a sufficiently small space to prevent the introduction of foreign objects into the container. These configurations also allow to provide sealing performance using conventional engineering plastics and can help avoid additional costs of bi-injected elastomeric materials.

[0023] In addition, the flange and lid flange, which may also be referred to as chimney and pressure boss configurations, respectively, could be exchanged to influence the same mechanism and / or two "chimney" configurations; They could be used instead. Note that the chimney configuration can have similar curvature in the inner and outer wall, which allows it to be injection molded so that the configuration can be undone from the mold without special floating cores and therefore allows faster cooling, duration of the lower cycle and therefore lower cost. In addition, the arrangement of these sealing configurations allows robust pressure-closing performance for relatively large diameter openings.

[0024] In addition, the arrangement of flanges or pressure seal configurations can be adjusted to allow sufficient sealing performance, adequate opening force and adequate closing force. Also, the retention provided by the pressure seal prevents the lid from opening partially or completely or from being partially open when the packaging is disturbed by external forces. The specific curvature, angle and cut geometry of the flanges (chimney and sealing flange configurations) and their assembled interference can be adjusted to vary the sealing pressure, opening and closing force that may be required.

[0025] In one embodiment, the area of the access opening is at least about 60 cm2. This allows even better one-hand access. In another embodiment, the area of the access opening is at least about 75 cm2.

[0026] Preferably, the area of the access opening is less than about 250 cm2. Thus, it is possible to provide easy access for an adult hand, and still allows the lid to be sealed sealed in a simple action. In one embodiment, the area of the access opening is less than about 200 cm2. These upper and lower limits provide good compensation between easy access for a human hand, sufficient rigidity, good closure, and the possibility of providing a shovel or spoon that can be held in the lid and reach the bottom of a container assembly .

[0027] In an embodiment of the invention said first flange is attached to said access opening. This can further increase the stiffness in the lid part.

[0028] Alternatively, said first flange is deployed or widened from said access opening, thereby increasing a perimeter of said first flange.

[0029] In one embodiment, said first circumferential circumferential flange at its outer periphery is enlarged near or at said edge of said first flange. Alternatively, or additionally, the inner periphery of the cover flange is enlarged near or at said edge.

[0030] In one embodiment, said second internal perimeter of said lid flange is approximately 2-7

� smaller than said first perimeter of said connection part. Especially when it was made of a thermoplastic material, it was found to provide a good seal, but it was still easy enough to open.

[0031] In one embodiment, said access opening is substantially round or substantially elliptical. This in most cases will provide a moisture proof seal. In some applications, even a rectangular opening with rounded corners may be acceptable with respect to the degree of sealing. These shapes allow a good seal. In order to provide a moisture-proof closure for hygroscopic powders, it is preferred that large straight parts (in view of the dimensions discussed) be avoided in the access opening or first flange and the lid.

[0032] In one embodiment, an area of said access opening is at least 50 � of the area of the connection part. This allows enough space to allow a hand to pass with a shovel to retrieve the content. On the other hand, it allows proper sealing, and allows a suitable shovel or spoon to be fixed inside the lid.

[0033] Alternatively, an area of said access opening is approximately 60-70 � of the area of the connection part. This seems to be an appropriate compensation.

[0034] In one embodiment, an internal diameter of the access opening is at least 9-13 cm. In an embodiment of a diameter of the connection part is at least 10-13 cm. These dimensions provide good sealing and sufficient contents of the container.

[0035] In one embodiment, said lid flange is made of a thermoplastic material that allows its perimeters to expand by placing said lid on said first flange, and where said first and second perimeter of said lid flange, if said lid it is not closing said opening, it is smaller than the perimeters of said first flange.

[0036] In one embodiment, said thickness of said first flange in view of its thermoplastic material is selected to provide a rigid flange.

[0037] In one embodiment, said cover part is made of a thermoplastic polymer selected from the group consisting of polyethylene (PE) and polypropylene (PP). These materials are easy to obtain and process. In addition, these materials provide an amount of flexibility and elasticity that allows for good sealing and daily use. If desired, some of the parts of the lid part may be of a more elastic elastomeric material in a molding process. A lid flange closing around the first flange can for example be molded from a more elastic polymeric material, this material as such is known in the art. Alternatively, an end portion of the lid flange can be made of a more elastic elastomeric material. This can occur in a molding process.

[0038] In one embodiment, said cover is made of a thermoplastic material with an elasticity such that it allows the sealing of said cover in said connection part through said cover flange on said first flange.

[0039] Alternatively, said connection part comprises a wall provided with said access opening, and said first flange extends from said wall, said wall and said cover when closing said access opening provide closure for a top part of said part of container

[0040] In one embodiment, said connection part comprises a circumferential edge having a circumferential groove for receiving said edge of said container part. In one embodiment, a circumscribed area of said circumferential edge is larger than the area of the access opening.

[0041] In one embodiment, said connection part comprises stacking cams. In another embodiment, said stacking cams are provided in the positions around the first flange. These cams allow the stacking of lid parts during the production of the containers, and also allow the containers to be stacked. The position of the cams prevents loads on the lid, and forces from the lateral direction.

[0042] The invention further relates to a container assembly comprising a container part with a circumferential wall and a bottom wall, and a lid part according to claims 1-18.

[0043] The invention as currently claimed serves to improve the closure of such a container assembly. According to one aspect of the invention, said connection part has stacking provisions that include said access opening and that are complementary with stacking provisions in the lower part of said container part.

[0044] According to one embodiment, the invention also provides a cover part for a container assembly, said cover part comprising a connection part comprising a circumferential U-shaped edge for receiving an upper edge of a gable of a container part, where an internal wall of said U-shaped edge comprises reinforcement ribs extending beyond the legs of said U-shaped edge, and said connection part comprising a surrounding circumferential support surface an upper surface of said cover part, said reinforcement ribs and said support surface mutually located such that when said cover part is stacked on a second said cover part, extensible lower extremities of said reinforcement ribs rest on said surface circumferential support of said second cover part while maintaining the legs of said U-shaped edge of said part of ta free pa from said circumferential support surface of said second said cover part.

[0045] The inventions described all relate to improving the closure of a container. In fact, they all refer to improving the reliability of this closure. In certain embodiments, stacking provisions are provided so that these include the lid when sealing the access opening. The stacking provisions in the connection part are thus arranged around the access opening. In this way, when container assemblies are stacked on top of each other, they do not load the lid with forces that can compromise sealing. As the containers are frequently used for powdered milk for babies and children, for example, it is very important that the container assembly be sealed and remain sealed.

[0046] In one embodiment, said stacking provisions in said connection part comprise cams. These cams can be produced in an easy manner, for example as extended wall parts. Alternatively, one or more edges may be provided around the access opening. Such edges are positioned so as to allow opening and access to the lid for opening and closing.

[0047] In one embodiment, said cams are positioned at the corners of a rectangle that includes said cover when sealing said access opening. By positioning the stacking provisions in the connecting part in this way, stacking without rotation can be made possible.

[0048] In one embodiment, the height of said cams is at least the height of said cover when sealing said access opening. In fact, when the stacking provisions in the connection part are at least as high as the lid, they prevent the bottom of a next container assembly stacked on top of this container assembly from even touching the lid.

[0049] In one embodiment, said connecting part comprises a circumferential edge to receive an upper edge of a gable of said container part in a groove, the internal perimeter of said edge being complementary to the perimeter enclosing said stacking provisions of said cover part for supplying complementary stacking means to stack a series of cover parts. Thus, the stacking provisions in the connection part have a function during production, that is to keep the lid parts stacked and positioned, and then keep the container assemblies stacked securely without loading the lids.

[0050] In an embodiment of the U-shaped lid, said bearing surface is connected to said U-shaped edge and defines an access opening that is closed by said lid. The invention further relates to a container comprising the lid part as described above, and a container part, wherein said container part comprises a lower part and connected to said lower part a wall of the circumferential container ending at an edge to receive said cover part.

[0051] The various aspects discussed in this patent can be combined to provide additional advantages.

Description of the drawings

[0052] The invention will be further elucidated in reference to an embodiment of a lid part and a container assembly using this lid part shown in the accompanying drawings, which show in: Fig. 1 use of the lid part in a container assembly; Fig. 2 a top view in perspective on a lid part with an open lid; Fig. 3 a perspective view of figure 2 from below; Fig. 4 a bottom view of a lid part with a closed lid; Fig. 5 a cross section as indicated in figure 4; Fig. 6 a detail of a cross section of the cover flange, and Fig. 7 stacked lid parts.

Detailed description of embodiments

[0053] In Figure 1, a container assembly 1 with a lid portion 2 of the invention is presented. The container has a container part 3. The container part 3 can be made of cardboard, coated with a synthetic coating layer known in the art to make it suitable for containing food or liquids. The container part can also be made of plastic or metal. Preferably, it is used to hold food or liquids. In one embodiment, the container part 3 may have a synthetic coating layer on its inner surface, and a sealing membrane sealing sheet is attached below the edge or edge of the container part 3, in a form of realization approximately 1-3 cm below the edge. The sealing sheet can be fixed to the inner surface of the container part 3, for example through heat sealing. Thus, some space can be provided between the lid and the seal to store, for example, a shovel or measuring spoon.

[0054] The cover part 2 is subsequently elaborated in figures 2 and 3, showing a 3D view of the cover part 2 with open cover 4 from above (figure 2) and from below (figure 3). The cover part 2 comprises a connection part 5, a (live) hinge 9 and a cover 4. The cover 4 is thus rotatably connected to the connection part 5. The connection part 5 defines an access opening 6. In In this embodiment, a first flange 7 joins the access opening 6. The lid 4 has a lid flange 8 that fits into the first flange 7 to close the access opening 6 and to tightly seal a container assembly 1. In this embodiment, the access opening is almost elliptical. The access opening 6 can also be round. Alternatively, it can be rectangular with rounded corners. However, in all three embodiments, it is important that the flange of the lid 8 fit around the flange 7 to seal the access opening 6 tightly.

[0055] The connection part 5 further comprises a wall 11 having said access opening 6. On the wall 11, cam elements 14 are provided. The use of such cams 14 as such is also explained in W02007142522 of the present applicant. These cams 14 provide part of stacking means for stacking the cover parts in production. In addition, these cams 14 provide part of stacking means for stacking complete container assemblies for example in warehouses. In this embodiment, the cams 14 are provided in the connection part 5. An advantage of this is that the cover 4 is not loaded. Thus, the quality of closure may not be compromised. Still, the height of the lid 4 in the closed position is equal to or substantially equal to the height of the cams.

14. Thus, when the container assemblies are stacked, the loading of the containers will keep the pressed lids close, while avoiding loads from other directions.

[0056] The connection part 5 is subsequently provided with a circumferential edge 12, which can be called a U-shaped edge. It has a groove 13 to receive an upper edge of the gable of the container part 3. The fixing of the part Connection 5 to the wall of the container can be performed through any means known in the art. In one embodiment, a hot melt adhesive is provided in slot 13.

[0057] Figure 4 shows a bottom-up view of a lid part 2 with the lid closed. In this drawing, a cross section is indicated. This cross section is subsequently shown in Figure 5. This cross section shows more clearly how the cover flange 8 of the cover 4 closes on the flange 7 of the connection part 5. In Figure 7, this is shown with more detail.

[0058] Figure 5 also shows the edge of connection part 12 more clearly. In the view of Figure 5, reinforcement ribs 20 indicate that they provide additional stiffness to edge 12.

[0059] Figure 6 shows a detail of the lid flange 8 which closes on the flange 7 of the container part 5. The lid flange 8 fits tightly around the flange 7 of the connection part 5. In the situation of figure 7, where the cover is closed in the connection part 5, the perimeter 23 at the edge 15 of the flange 7 is identical to the perimeter (internal) of the cover flange 8 in position 22. In position 16 , the cover flange 8 is enlarged. Flange 7 protrudes. It is formed so that its outer circumferential surface fits against the inner circumferential surface of the lid flange 8. The lid flange 8 is made of a thermoplastic material. This allows a certain degree of elasticity. Especially, here the cover flange has a thickness in view of the elasticity of the thermoplastic material used. The lid flange 8 fits somewhat elastically around the relatively rigid flange 7. To close the lid and facilitate doing so frequently, the lower end of the lid flange 8 has a beveled edge. This makes it easier to turn the edge of the lid flange 8 over the edge of the flange 7. When it is not fitted over the flange 7, the lid and in particular the lid flange 8 is sized so that the smallest internal perimeter of the lid flange is smaller than the smallest (limiting or external) perimeter of the flange 7. Preferably, the outer perimeter of the flange 7 at the edge 15 is larger than the internal perimeter of the flange 8 in position 22. Thus, Cap 4 cannot be removed spontaneously. In one embodiment, the flange 7 protrudes. The shape of the cover flange follows this shape or follows it when stretched a little. The cover flange 8 is stretched a little to fit elastically around the flange 7. This makes a tight seal possible. In the embodiment shown in the drawings, the smallest diameter of the flange 7 is 101.89 mm, the largest diameter is 112.65 mm. In one embodiment, the thermoplastic material is polypropylene (PP). In this case, the internal diameters of the lid are for example 101.36 mm and 112.12 mm. The external diameters are for example 104.0 mm and 114.8 mm. For this material, the thinnest part of the cover flange 8, D1, can be approximately 0.7-0.8 mm and the thickest part D2 is approximately 1.1-1.2 mm. The height of the cover flange is approximately 3.9-4.5 mm, and the height of a corresponding flange 7 is approximately 2.9-3.1 mm. In practice, the diameter of the lid flange will be approximately 3-7 � smaller than the corresponding diameter of the flange 7. In practice, the lid flange 8 will narrow slightly inwards, at an angle of approximately 2- 5 degrees Due to its elasticity, the lid flange 8 when closed around the first flange 7, will extend a bit and the lid flange 8 will no longer be narrowed, and tightly fits around the first flange 7. In the drawing, the shapes Cooperating conics of the lid flange 8 and the flange 7 pull the lid onto the outer surface of the wall 11 of the connection portion to provide additional sealing of the edge of the lid flange 8 and the wall surface

eleven.

[0060] To provide the cover flange 8 with a certain amount of elasticity while at the same time providing a connection part and in particular its flange 7 with sufficient rigidity, and to allow the cover part to be made economically and in large quantities, in one embodiment the lid part is made of thermoplastic material. In particular, it is made of polyethylene (PE) or polypropylene (PP). The material in one embodiment is flexible and elastic enough to allow the lid flange 8 to be stretched around the flange 7. Thus, a tight seal is possible.

[0061] In one embodiment, the volume of a container with the lid portion is approximately 0.5-2 liters. This volume is determined by depth, width and height of the container. In order to be able to provide a measuring blade with a length long enough to reach the bottom of the container within the container, one of the dimensions of the diagonal cross section or the width or depth is preferably in the same order of magnitude as the bowl height In addition, it is preferred that the blade can be fixed inside the lid. In practice, the container can have a depth of approximately 9-13 cm, a width of approximately 11-16 cm, and a height of approximately 10-18 cm. The shovel or spoon will have a total length of approximately 9-11 cm. The access opening will thus need to have a larger diameter of at least about 9-11 cm, depending on the total length of the bucket or shovel used. The area of the access opening 6 will be at least about 50 � of the cross-sectional area of the container equipped with the lid portion. An upper limit that can be achieved will be approximately 85 �. In the example presented, this number will be approximately 60-70�. This will allow the lid to be large enough, both in the area and in the maximum diameter. At the same time, it will leave enough space to allow the stacking cams 14 in the connection part 5.

[0062] A large access opening is preferred for easy entry with a shovel. In addition, for hygienic reasons when a full container is offered to the public in a warehouse, the shovel can be provided fixed in clamps provided inside the lid or between the lid and the sealing of the product that is additionally provided in the container below of the lid (that is, in the space provided between the lid and product sealing). In one embodiment, the cover has at least minimum dimensions for mounting the blade.

[0063] For easy opening, said cover 4 comprises an opening lip 21, here fixed to the edge of the cover flange

8. The opening lip 21 is at its edge blocked by a tamper-sensitive band 22. This band 22 has cams that hold the edge of the opening lip 21. The band 22 is fixed to the connection part 5 through Fine bridges of material. These bridges should be thin enough to break if the opening lip 21 passes the cams of the band 22.

[0064] Figure 7 shows two stacked lid parts 2.2�. The cams 14 in the connection part 5 provide a secure stacking to define the position of the cover parts to produce the container assemblies, while avoiding the loading of the cover 4. Here, the stacking cams are provided in the wall 11 In fact, as already indicated in Figure 1, a first use of cams 14 is provided with a part of stacking means that work together with complementary stacking provisions in the lower part of the container part, in particular in the bottom. This allows the safe stacking of different containers on top of each other. In addition, since stacking provisions in the lid part are provided in the connection part around the lid (in the closed position), when container assemblies provided with the lid parts are stacked, the lid closure does not It is compromised. In the embodiment shown, the stacking provisions in the lid portion extend little over the lid for an even safer closure or not to compromise the closure.

[0065] A second use of the stacking provisions in the cover part is possible if the position of these stacking provisions is adapted to the dimension of the connection part. Thus, the effect and use of the stacking lid parts described above is realized.

[0066] The position of the stacking provisions 14 in the connection part is such that a container assembly stacked on the cover part cannot rotate. That is, it cannot rotate on an axis perpendicular to the access opening. To that end, the cams 14 are in this embodiment provided at the corners of a (virtual) rectangle. The complementary stacking provisions at the bottom of the container part provide a stop on the sides of the rectangle against the stacking provisions 14 in the lid part 2.

[0067] In this embodiment, the stacking provisions in the container part are provided by a circumferential edge at the bottom of the container part as indicated in Figure 1.

[0068] It is also clear that the aforementioned description and drawings are included to illustrate some embodiments of the invention, and not limit the scope of protection. Starting from this disclosure, many more embodiments will be apparent to an expert in the field that are within the scope of this invention and that are obvious combinations of state of the art techniques and the disclosure of this patent, as it is limited by the appended claims.

Claims (18)

one.

Cover part for a container for powdered baby food, said cover part (2) substantially made of a thermoplastic material and comprising a connection part (5) for connection to an edge of a container part and a cover ( 4) that said cover (5) is rotatably connected to said cover (4) having a central part and a circumferential cover flange (8) extending from said central part (2), said connection part (5) comprising a wall (11) provided with an access opening (6) of a sufficient size to allow a hand to pass with a shovel to recover the contents, an area of said access opening being at least 50 cm2, and a first circumferential flange (7) surrounding said access opening (6) and extending outwardly from said wall (11), said first circumferential flange (7) has a first outer perimeter near said wall (11) and a second outer perimeter near from the edge of said first flange (7), so that said first flange (7) narrows outwardly from said wall (11), characterized in that, said lid flange (8) having a first internal perimeter near said central part ( 2) and a second internal perimeter near the edge of said lid flange (8), said second internal perimeter of said lid is smaller than said first perimeter near the edge of said lid flange (8), such that said flange of cover (8) narrows inward from said central part (2), where the perimeters of said cover flange (8) and the first flange (7) are mutually adapted to allow said cover (4) to close in a sealed manner in said first flange (7) of said connecting part (5) so that the cooperating conical shapes of the lid flange (8) and the first flange (7) pull the lid (4) onto the wall (11) of the connection part (5) where an additional seal is provided between the edge of the cover flange (8) and the surface of the wall (11) surrounding the first flange (7).

2.

 Cover part according to claim 1, wherein said area is at least about 75 cm2.

3.

Cover part according to any of the preceding claims, wherein said area is less than about 200 cm2.

Four.

Cover part according to any of the preceding claims, wherein said first flange (7) joins said access opening (6).

5.

Cover part according to any of the preceding claims, wherein the cover flange (8) comprises an internal beveled edge at its edge.

6.

Cap part according to any of the preceding claims, wherein said first circumferential flange (7) circumferentially at its outer periphery widens near or at said edge of said first flange (7).

7.

Cap part according to any of the preceding claims, wherein said second inner perimeter of said cap flange (8) is approximately 2-7 � smaller than said first outer perimeter of said first flange (7).

8.

Cover part according to any of the preceding claims, wherein said access opening (6) is substantially round or substantially elliptical.

9.

Cover part according to any of the preceding claims, wherein an area of said access opening (6) is at least 50 � of the area of the connection part.

10.

Cover part according to any of the preceding claims, wherein an internal diameter of the access opening (6) is approximately 9-13 cm, and a diameter of the connection part (5) is approximately 10-13 cm.

eleven.

Cover part according to any of the preceding claims, wherein said cover flange (8) is made of a thermoplastic material that allows its perimeters to expand when said cover (4) is placed on said first flange (7), and wherein said first and second perimeter of said lid flange, if said lid is not closing said opening, it is smaller than the perimeters of said first flange.

12.

Cap part according to any of the preceding claims, wherein the thickness of said first flange (7) given its thermoplastic material is selected to provide a rigid flange.

13.

Cover part according to any of the preceding claims, wherein said cover part (4) is made of a thermoplastic polymer selected from the group consisting of polyethylene (PE) and polypropylene (PP).

14.

Cover part according to any of the preceding claims, wherein said cover is made of a thermoplastic material with an elasticity that allows a hermetic sealing of said cover (4) in said connection part (5) through said cover flange (8 ) and said first flange (7).

fifteen.

Cover part according to any of the preceding claims, wherein the cover part (2) is formed by injection molding so that the cover (4) is rotatably connected to the connection part (5) by a

live hinge (9).

16.

Cover part according to any of the preceding claims, wherein said connection part (5) comprises

a circumferential edge (12) having a circumferential groove (13) for receiving said edge of said part of the container. 17. Cap part according to any of the preceding claims, wherein said connecting part (5) comprises stacking cams (14). 18. Cover portion according to the preceding claim, wherein a circumscribed area of said circumferential edge (12) is larger than the area of the access opening (6). 19. The container comprising the lid part of the preceding claims and a container part, wherein said container part comprises a lower part and connected to said lower part a wall of the circumferential container 15 ending at an edge to receive said lid part.