EP1560767A1

EP1560767A1 - Pail comprising a safety seal

Info

Publication number: EP1560767A1
Application number: EP03775180A
Authority: EP
Inventors: Richard Kellerer; Jens Bartusel
Original assignee: Schoeller Wavin Systems Services GmbH
Current assignee: Schoeller Allibert GmbH
Priority date: 2002-11-15
Filing date: 2003-10-13
Publication date: 2005-08-10
Anticipated expiration: 2023-10-13
Also published as: WO2004045978A1; BR0316251A; HRP20050539A2; AU2003283264B2; MXPA05005181A; CA2506311C; AU2003283264A1; CA2506311A1; EP1560767B1; US20060138156A1

Abstract

The invention relates to a container (1), in particular a plastic container, preferably in the form of a pail. Said pail comprises a lid (2) for sealing the container, which has a receiving area (4), in which the edge (3) of the container that delimits the container opening engages and is held in the sealed position. The invention is characterised in that counteracting detent elements (10-14) and sealing surfaces (16-19) are provided in the receiving area of the lid and on the edge of the container opening. Said detent elements are configured in such a way that when the container is sealed, the sealing surfaces are securely pressed against each other, forming a seal that can only be released by destroying the lid.

Description

Bucket with safety lock

The present invention relates to a container according to the preamble of claim 1.

Containers for the safe transport of liquid or pasty hazardous substances have been known for a long time. What these containers have in common is that, on the one hand, they must have sufficient tightness in order to avoid the escape of the transported hazardous substances. On the other hand, you must also have a short-circuit that ensures that the container is securely closed even under extreme loads. In particular, such containers and their connections must withstand a load that can also occur in the event of accidents, such as the container falling from a certain height.

For such containers, in particular buckets or barrel-like containers are known from the prior art, the lid of which is firmly screwed on with a screw cap. To secure it, metallic clips can also be provided, which press the lid onto the container or prevent the screw cap from being unscrewed. In addition, there are closure systems in which the lid is flanged accordingly after being applied to the container in order to achieve the tightness. Systems are also known in which the lid or closure is glued or welded or in which additional sealing foils are glued or welded.

All these containers or locking systems have the disadvantage in common that they are complex and complicated to handle, in particular taking into account the need for extensive automated handling of such objects and thus also the closing process.

It is therefore an object of the present invention to provide a tight and securely closable container, which is used for the transport of liquid or pasty hazardous substances is suitable, both the production and the handling should be inexpensive and effective.

This object is achieved by a container with the features of claim 1. Advantageous refinements are the subject of the dependent claims.

The container according to the invention, which is preferably designed in the form of a bucket or in a barrel-like shape, has a lid for closing the container, the lid having an area in which the edge of the container opening of the container engages in the closed state and is held there , To this extent, the container according to the invention is based on known containers.

However, the present invention takes a completely different way from the known prior art in order to achieve the present object. The basis of the container according to the invention is the realization that the provision of locking elements which can be connected to one another in a form-fitting manner and of correspondingly interacting sealing surfaces enables a container to be sealed securely and tightly. The use of interlocking connections by means of locking elements and corresponding sealing surfaces ensures that both handling and manufacture are kept simple. This ensures effective use of the container.

The form-fitting connections of latching elements are preferably designed such that the cover can only be detached from the container if at least part of the cover or part of the container is destroyed. This gives the user a verifiable first opening guarantee, since only a container that has never been opened is intact, while a container that has already been opened has damage to the lid or the container.

According to an advantageous embodiment of the container, the area around the lid and the edge of the container opening, which interlock when closed, or the detent elements, which form the positive connection, and the sealing surfaces are designed in such a way that the lid is placed on or closed of the container by a Translational movement of the lid to the container takes place. In particular, it is advantageous if the lid is simply slipped on or clipped onto the container from above. This enables the container to be closed automatically by a machine, since a translational movement or the mounting or clipping on of a machine can be carried out easily.

According to an advantageous embodiment, at least two, preferably three or more pairs of locking elements are provided on the area around the lid or on the edge of the container opening, since several pairs of locking elements enable multiple securing and thus contribute to the secure closure of the container. Here, latching element pairs are not only to be understood as two latching elements which mutually bring about a form fit, but under certain circumstances also a multitude of latching elements, which, however, due to their similar design and the same mode of operation, are only regarded as one latching element pair. For example, this applies to locking elements that are formed only by a subdivision.

According to a preferred embodiment of the container, the at least two, preferably three or more pairs of locking elements are designed such that at least one of these pairs of locking elements is designed so differently from the other pairs of locking elements that the movement to release the locking element pair is different from the other locking element pairs. This means that not all of the locking element pairs can be released at once by a single movement of a part of the cover or the receiving area of the cover or the edge of the container opening. Rather, it is ensured by the different movement that is required to solve all the locking element pairs that a complicated movement is necessary. In particular, it has proven useful to provide at least two types of locking element pairs that require opposite movements to release the locking. In particular, it is contemplated here that, for example, part of the area around the opening must be moved both outwards and inwards. In particular, this goes beyond the fact that different, in particular opposite, dissolving movements are required for circumferential locking elements on opposite sides. Rather, there are different ones Latching element pairs meant, which are arranged adjacent to one another, for example one above the other.

The provision of different types of locking element pairs, which differ in the different movement when releasing the locking, also has the advantage that in this way, elements for a positive connection also have a sufficient oil-exchange effect for those also on the frame area of the cover or on the edge of the Container opening provided sealing surfaces can be generated. Even if the sealing surfaces are pressed against each other by appropriate dimensioning of the lid and container opening, the provision of different types of locking element pairs, as described above, ensures additional surface pressure, which can be safely maintained in many stressful situations.

In addition to separately arranged sealing surfaces, corresponding sealing surfaces can preferably also already be provided on the locking elements producing the positive connection, since in particular when using different types of locking elements with different directions of movement for releasing the locking, mutual wedging can also be brought about, which leads to the fact that positive locking elements are to a certain extent pressed together and thus form sealing surfaces.

According to a preferred embodiment, additional sealing means can be provided in the area of the lid and / or at the edge of the container, in particular in the form of inserted or injected sealing rings.

In order to implement the so-called first opening guarantee, it can also be advantageous to provide a predetermined separation point in the area around the lid and / or at the edge of the container opening in order to be able to easily separate corresponding areas which ensure a secure and permanent connection. In particular, it is advantageous in this case to provide a predetermined separation point in the area of the receiving area or the edge of the container opening, which leads to the part of the receiving area and / or the edge being separated that the one or more differently acting detent elements Has ment pairs, since in particular this type of locking element pairs can ensure that the positive connection is not detachable.

According to a preferred embodiment, the receiving area of the lid has a substantially U-shaped cross section, the opening area being open at the bottom in order to receive the edge of the container opening from there. The legs of the U-shaped receiving area then enclose the edge of the container opening and hold it positively by means of latching elements, while the sealing surfaces come into close contact with one another in order to ensure the sealing effect.

While it is of course possible to provide a large number of different combinations of latching hooks, latching lugs, latching grooves and the like, and correspondingly designed sealing surfaces, the preferred embodiment of the present invention has in the U-shaped receiving area which is formed by an outer and an inner leg, on the inside of the outer leg two locking lugs or hooks, which interact with two locking lugs on the outside of the edge of the container opening. In addition, the outer leg of the U-shaped receiving area on the outside has a further latching hook which interacts with an undercut of the edge formation of the container opening, which is provided in a double-walled part of the edge formation on the outer web of the edge. The arrangement of latching hooks or lugs both on the inside and on the outside of the outer leg of the U-shaped receiving area and the corresponding design of corresponding undercuts or latching elements on the edge area of the container opening form two different types of latching element pairs distinguish that one type of locking element pairs can be released in their latching when the outer leg is moved outwards, while the other type of locking element pairs requires an movement of the outer leg inward in order to release the locking.

This simple design of the locking element pairs ensures, on the one hand, that the lid can be placed on the container in a simple manner by vertical movement from top to bottom, and, on the other hand, this triple locking effect a secure arrangement of the lid on the container. The different types of locking element pairs with the opposite opening movements also ensure that the cover cannot be removed without damage.

In order to enable easy opening of the container without the use of special tools and to ensure that the lid is easy to put on, a constriction is formed in the outer leg of the U-shaped receiving area, so that a film hinge is formed in this area, which forms a lower segment of the outer leg. On the one hand, this film hinge means that the lower segment of the outer leg can carry out the corresponding movements in order to get past the latching lugs or hooks and undercuts when the container is closed or the lid is put on. In addition, the film hinge or the constriction offers the possibility of severing the lower segment by simply cutting with a cutting tool, such as a knife, along the film hinge. Since the locking elements of the receiving area are preferably provided in the lower segment of the outer leg to form two different locking element pairs, only a locking action remains after the separation, which can be released by correspondingly slight movement of the outer leg of the receiving area. At the same time, this only remaining detent after the first opening of the container enables the container to be used again and to be closed again, without, however, then guaranteeing secure closure with the first opening guarantee.

In order to enable a uniform closure of the container, it is preferred if the latching elements or pairs of latching elements are arranged circumferentially around the container opening or around the lid, whereby an interruption or subdivision of a latching element by recesses, webs etc. may lead to a corresponding plurality of locking elements is formed, but in the sense of the present invention, the purpose of uniform closing and treatment as one locking element or two locking elements in a pair of locking elements is retained.

The measures described above make it possible to use conventional materials in the container according to the invention without taking special measures have to. Plastics based on the polyolefins, in particular polyethylene and polypropylene, are preferred. The preferably additionally used sealants generally do not require any special requirements with regard to the selection of the material, although depending on the application there may nevertheless be special requirements with regard to the selection of the material. Only the dimensioning of the components, for example the wall thicknesses, has to be adapted very much in accordance with the application in order to be able to withstand the necessary forces even under special loads, such as accidents.

Further advantages, characteristics and features of the present invention will become clear in the following detailed illustration of an exemplary embodiment with reference to the attached drawings. The drawings show in a purely schematic manner in

Fig.l is a side view of a container with a lid in part

elevation; 2 shows a detailed view from FIG. 1 in various stages of closure (partial images abis c); 3 shows a cross-sectional view along the section line D - D from FIG. 2b;

4 shows a cross-sectional view along the section line D - D from FIG. 2c;

5 shows a perspective view of the container with the lid attached;

6 shows a partial perspective view of the container with the cover removed;

7 shows two containers stacked one inside the other;

8 shows a cross-sectional view (partial image a) of two stacked lids and a detailed view (partial image b) from FIG. 8 a; and in Figure 9 is a plan view of the lid of the container.

1 shows a side view with a partial cross-sectional view of a container 1 according to the invention in the closed state, that is to say with the cover 2 in place. In this state, the edge 3 of the container opening engages in the receiving area 4 of the cover and is held firmly therein. In the exemplary embodiment shown, the container 1 is in the form of a bucket on which a pivotable handle 27 is arranged for easier carrying. As can be seen in the partial sectional view of FIG. 1, the container 1 has a slightly inwardly curved base 30 which has support feet 31 on its outer edge, so that the base 30 is slightly spaced from the standing surface. The container 1 also has a slightly conical, but essentially cylindrical outer contour in order to enable empty containers to be stacked one on top of the other.

2 shows in its partial images a) to c) a detailed view of the cut-open area with the receiving area 4 and the edge 3 of the container opening, namely in different stages of closing the container 1.

In FIG. 2a) the container is still completely open, with the cover 2 being slightly placed on the container opening or on the edge 3 of the container opening. As can be clearly seen in this detailed view, the receiving area 4 is essentially U-shaped on the circumference of the cover 2, the receiving area being open at the bottom in order to receive the web 9 of the edge 3 of the container opening from there. The frame area 4 thus has two legs 5 and 6, namely an outer leg 5 and an inner leg 6, which are connected to one another in the connecting area 7 at the foot of the U. The inner area of the cover 2 is connected to the receiving area 4 via the edge connection 22, the edge connection 22 in turn forming an opposite U with the inner leg 6 of the receiving area 4, so that the inner area 32 of the cover 2 is at the height of the upper area of the receiving area 4 is arranged. Nevertheless, the receiving area 4 forms a circumferential stacking hand in the exemplary embodiment shown, so that closed containers 1 can be stacked one above the other, wherein the receiving area 4 largely prevents mutual slipping.

On the outer leg 5 of the receiving area 4, two latches 12 and 13 are provided on the inside, while on the outside a latch hook 14 is formed almost at the lower end of the outer leg 5. The locking lugs 12 and 13 or the locking hooks 14 are spaced approximately uniformly along the outer leg 5. In the immediate vicinity of the locking lug 13 and in the area between the locking lug 12 and the locking lug 13, a constriction is provided in the outer leg 5 of the U-shaped receiving area 4, so that a film hinge 15 is formed, a groove 20 being formed on the inside of the outer leg 5 immediately adjacent to the detent 13.

The side of the inner leg 6 opposite the inside of the outer leg 5 is designed as a smooth sealing surface 16, which is somewhat inclined with respect to the vertical.

Immediately in the connection area 7 of the legs 5 and 6 of the U-shaped receiving area 4, space is provided in the curvature 29 of the U-shaped receiving area for receiving a sealing ring (not shown).

The container 1 has an edge at the container opening, which is double-walled in the lower part. In this lower section of the edge formation 3 of the container 1, an outer web 8 is thus also provided in addition to the inner web 9 and forms the double wall. The edge 3 of the container 1 thus has two sections, namely an upper first section in which the edge 3 is single-walled with the web 9 and a lower second section in which the edge 3 is double-walled with the outer web 8 and the inner Web 9 is formed. In the first, upper section of the edge formation 3 of the container 1, two latching hooks 10 and 11 are provided on the outside of the web 9, which are formed in cross section essentially as almost triangular projections.

The second, lower section of the edge formation 3 of the container 1 has openings 25 on its upper side. At the same time, the outer web 8 forms an undercut 21 with the edge of the opening 25.

On the inside of the inner web 9 of the rim formation 3 of the container 1, a flat, smooth sealing surface 17 is formed, which corresponds to the sealing surface 16 of the receiving area 4 of the cover.

The closing process is now shown in the sub-images b) and c) of FIG. 2. FIG. 2 b) shows that the web 9 is guided with the lid 2 into the U-shaped area 4 when the container 1 is closed, the latching lug 13 initially projecting on the latching hook 10. supplied, while the lower end of the outer leg 5 is inserted with the latching hook 14 into the opening 25 of the double-walled section of the edge formation 3 of the container 1.

When the container 1 is further closed with the lid 2, which is shown in partial image c) of FIG. 2, the locking lug 12 also slides past the locking hook 10 and the locking lug 13 on the second locking hook 11. The locking lugs 12 and 13 or The latching hooks 10 and 11 are designed in such a way that they have corresponding inclined surfaces which allow mutual sliding in the closing direction, while sliding back by the positive locking is not possible. At the same time, when the closure is completely closed, the lower part of the outer leg 5 is completely accommodated in the double-walled section of the edge formation 3, the latching hook 14 coming to rest under the undercut 21. It is clear here that the lower segment 33 of the outer leg 5 is pressed outwards by the latching hook 11 when it is closed, while the lower segment 33 of the outer leg 5 for insertion into the opening 25 of the double-walled edge formation 3 is pushed by the latching hook 14 must be bent inside. This is made possible in particular by the design of the film hinge 15, which enables a different movement of the lower segment 33 in accordance with the phases in which the cover 2 is put on.

In the fully closed state it can be seen that on the one hand the locking lugs 12 and 13 form positive connections with the locking hooks 10 and 11, while the locking hook 14 also forms a positive connection with the undercut 21. To release the total of 3 locking element pairs, it would be necessary to move the outer leg 5 to release the locking element pairs 12 and 10 or 11 and 13 outwards, while a release of the locking element pair 14 and 21 would require an inward movement. The inclined surface 13, which is supported on the nose 11, further increases the locking of the locking element pair 14 and 21, since a lever effect is established in the direction of the locking position. However, it is therefore not possible to release the latching without destroying the receiving area 4, ie cutting open or detaching the lower segment 33 along the film hinge 15. Only when the lower segment 33 is released by cutting off along the film hinge can the remaining segment Locking can be released via the locking element pair 12 and 10. This also has the advantage that the container can still be used and closed even after it has been opened for the first time, which is visible to everyone due to the fact that the lower segment 33 remains in the double-walled section of the edge formation.

In addition to the formation of the locking element pairs, a seal is produced when the container is closed by the sealing surfaces 16 and 17 coming into contact, in particular in clamping contact, by correspondingly adapting the dimensions of the lid 2 to the container 1 or to the edge 3 of the container and the corresponding design of the latching between the frame area 4 and the edge 3. In addition, the latching element pairs, in particular the latching element pair 12 and 10, also press sealing surfaces against one another, specifically the sealing surfaces 18 and 19, as shown in FIG. 2c. In addition, in the curvature region 29 of the U-shaped receiving region, a sealing ring which is shown may be pressed and is pressed by the upper end of the web 9 against the connecting region 7 of the receiving region 4, so that an additional sealing effect is achieved.

As can also be seen from FIG. 2c, the positive connection in the locking element pair 13, 11 is reinforced by the fact that a groove 20 is formed on the inside of the film hinge 15, in which the locking hook 11 can additionally engage. 3 and 4 show in cross section details from FIGS. 2b and 2c along the respective section line DD. 3 and 4 show how the web 9 engages between the outer leg 5 and the imid leg 6 when closing the container 1. The sectional views make it clear that intermediate walls 23 or reinforcing walls 24 are provided both between the outer web 8 and the inner web 9 of the edge formation 3 and between the inner leg 6 and the edge connection 22 of the cover 2, so that the second lower section of the Edge formation 3 with the double-walled edge formation on the top has openings 25 which have a substantially rectangular cross section. Correspondingly, the lower region of the outer leg 5 is provided with corresponding cutouts into which the intermediate walls 23 can engage in the closed state. 3 and 4, part of the handle 27 can also be seen, which is likewise articulated in the double-walled region of the edge formation 3.

5 shows a perspective view of the container 1 with the cover 2 attached. In this perspective view it can be seen particularly well how the handle 27 is pivoted in the double-walled area of the edge 3, in particular on the outer web 8.

In addition, the partition walls 23 or the reinforcement walls 24 and the openings 25 can be seen very well in this illustration. 5 also shows the design of the stack supports 26, which are arranged on the outside of the container 1 below the edge formation 3 in the region of the articulation of the handle 27, the mode of operation of the stack supports 26 being better illustrated in FIG. 7.

A cover flap 28 is also provided on the cover 2, which enables the cover 2 to be released after the lower segment 33 of the outer leg 5 of the receiving region 4 has been separated (as shown above).

6 also shows a perspective view of part of the container 1 and a cover 2 removed therefrom. Again, the openings 25 and the partition walls 23 between the outer web 8 and the inner web 9 of the container and the reinforcing walls 24 of the are particularly good Cover 2 can be seen. In addition, it can be seen in this illustration that the outer leg 5 of the receiving area 4, on which the locking hook 14 is provided at the lower end, has a plurality of cutouts 34 so that the outer leg 5 can engage in the openings 25 and the intermediate walls 23 in the area of the Find 34 slots.

7 shows, in a side view or in a partial sectional view, two containers 1 and 1 'stacked one inside the other. The function of the stack supports 26 and 26 ′, which are seated on the upper edge of the web 9 when stacked one inside the other, becomes clear here. This prevents the stacked buckets from jamming and ensures a defined load transfer. The side view of FIG. 7 also clearly shows that the locking hooks 10 and 11 are designed as circumferential strips on the edge 3 and on the web 9. As can be seen in partial images a) and b) in FIG. 8, not only the containers can be stacked one inside the other, but also the lids can be stacked one inside the other, as shown in FIG. 8 a). According to the detailed drawing in FIG. 8 b), the connecting area 7 of the receiving area 4 forms a circumferential stacking hand, into which the lower end of the inner leg 6 of the cover 2 ′ lying above it can engage. In the cross-sectional view of FIGS. 8 a) and b), however, a reinforcement wall 23 is clipped on, so that the inner leg 6 does not appear clearly. The dimensions of the outer leg 5 are such that the lower end of the leg 5 with the latching hook 14 is somewhat shorter than the lower end of the inner leg 6, so that the outer leg 5 ends above the connecting region 7 of a cover 2 arranged underneath ,

FIG. 9 shows a plan view of the cover 2, the uniform subdivision of the circumference of the cover 2 with the receiving area 4 by the reinforcing walls 24 and the recesses 34 or latching hooks 14. Although, of course, a large number of latching hooks 14 along the circumference of the lid 2 are formed by the recesses 34, this plurality of latching hooks 14 is to be understood as a latching element in the sense of this application, since in particular all latching hooks 14 of the circumferential undercut 21 cooperate and therefore form a pair of latching elements. Nevertheless, a pair of latching elements can of course also be formed from a multiplicity of latching hooks or latching lugs according to the understanding of the term used here.

Claims

Patentansprflche

1. Container, in particular plastic container, preferably in the form of a bucket, with a lid (2) for closing the container (1), which has a receiving area (4) into which the edge (3) of the container delimiting the container opening in the closed state engages and is held, characterized in that latching elements (10-14) and sealing surfaces (16-19) are provided at the receiving area of the lid and at the edge of the container opening, the latching elements being designed such that in the closed state of the container the Sealing surfaces are pressed securely against one another and in particular can only be detached by destroying the cover and / or edge, and seal.

2. Container according to claim 1, characterized in that the receiving area (4) of the lid and the edge (3) of the container opening are designed such that the closure of the container with the lid takes place essentially by a translational movement, in particular the lid from above is attached or clipped onto the container.

3. Container according to claim 1 or 2, characterized in that at least two, preferably three or more pairs of locking elements (12, 10; 13, 11; 14, 21) are provided, preferably at least one pair of locking elements being designed such that the solution to the Locking with different, in particular opposite movement takes place than with the other locking element pairs, so that in particular a movement of at least part of the receiving area (4) of the lid or the edge (3) of the container opening to release the locking of differently acting locking element pairs in different directions, in particular in opposite directions he follows.

4. Container according to the preceding claims, characterized in that the sealing surfaces (16-19) are provided separately from the latching elements and / or on the latching elements.

5. Container according to one of the preceding claims, characterized in that in the receiving area (4) and / or at the edge (3) of the container opening at least one, preferably a plurality of additional sealants, preferably in the form of in particular inserted or injected sealing rings, are provided.

6. Container according to one of the preceding claims, characterized in that the receiving area (4) of the lid and / or the edge (3) of the container opening has a predetermined separation point (15) for separating a part (3) of the receiving area and / or the edge , in particular of that part which has the or the differently acting detent element pairs, so that only identically acting detent element pairs remain in order to enable the container closed with the lid to be opened.

7. Container according to one of the preceding claims, characterized in that the receiving region (4) is substantially U-shaped in cross section and is open at the bottom, the edge of the container opening being at least partially straight in cross section in a first section and between the Legs (5,6) of the U-shaped receiving area is received, and in particular on an inside of one leg (5) and the corresponding side of the first section of the edge locking hooks, locking lugs or / and locking grooves (20) are provided, which are provided when closing interlock, while on the inside of the other leg (6) and the corresponding side of the first portion of the edge of the container opening sealing surfaces (16, 17) are provided.

8. Container according to claim 7, characterized in that on the inside of the outer leg (5) of the receiving area (4) at least two latching hooks (12, 13) and on the outside of the outer leg at least one latching hook (14) are provided.

9. A container according to claim 7 or 8, characterized in that the edge (3) of the container opening is at least partially, in particular in a second section, which extends over a partial area of the edge that can be inserted into the receiving area. is designed with a pelt wall, the outer leg (5) of the receiving area (4) engaging at least partially in the space between the double-walled edge.

10. A container according to claim 9, characterized in that the outer web (8) in the second section of the double-walled edge (3) has an undercut (21) or a locking element which with the locking hook (14) on the outside of the outer leg ( 5) of the receiving area cooperates and in particular forms a pair of latching elements (14, 21) which, opposite the latching elements (12, 13) on the inside of the outer leg of the inhalation area or the latching elements (10, 11) on the outside of the web (9 ) of the first section of the double-walled edge of the container opening has different, in particular opposing, opening movements to release the latching.

11. Container according to one of claims 7 to 10, characterized in that the outer Schenlcel (5) of the receiving area (4) of the lid (2) of a predetermined separation point (15) in the form of a film hinge for cutting with a cutting tool, in particular a knife , which is preferably arranged in such a way that the lower segment (33) of the outer leg (5) of the receiving area, which has two pairs of detent elements (21, 14; 13, 11) which act in particular differently, is separated, and in particular in the double-walled part of the edge (3) the container opening remains.

12. Container according to one of claims 7 to 11, characterized in that in the area of the connection (7) of the legs (5,6) of the receiving area (4) a sealing ring, in particular an O-ring is provided, which in the closed state with the upper end of the edge of the container opening is pressed into the receiving area.

13. Container according to one of the preceding claims, characterized in that the latching elements are arranged as circumferential hooks or lugs (10-13) on the edge of the container opening and / or on the receiving area.

14. Container according to one of the preceding claims, characterized in that the container with the lid at internal pressures of up to 1 bar, in particular up to 0.8 bar is securely and tightly sealed, especially with liquid and pasty substances, and in particular meets the UN approval requirements for the transport of liquid hazardous substances.