WO2022053429A1

WO2022053429A1 - Container having a sealing edge

Info

Publication number: WO2022053429A1
Application number: PCT/EP2021/074480
Authority: WO
Inventors: Markus BLUMENSCHEIN
Original assignee: Jokey Se
Priority date: 2020-09-14
Filing date: 2021-09-06
Publication date: 2022-03-17
Also published as: EP4211048A1; DE202020105258U1

Abstract

The invention relates to a container having a lid, wherein: the container (1) and/or the lid (2) are preferably plastic parts; the container (1) comprises a peripheral sidewall (3), which forms an upper container edge (4) and a container opening (5), and a container bottom (6); the container (1) and lid (2) comprise mutually corresponding fastening means (7, 8) for detachably fastening the lid to the container (1); the upper container edge (4) is a sealing edge and is adapted to become sealingly joined, or is sealingly joined, to a sealing film (9) that closes the container openings (5). According to the invention, a peripheral skirt (15) is integrally moulded on the upper container edge (4) so as to be radially outside with respect thereto, which skirt comprises a groove (16) that extends over the entire circumference and is open to the container opening (5) and has a radially inner and a radially outer groove flank (16a, 16b), wherein the lid (2) comprises a fully peripheral sealing lip (21) which projects from the lid underside (2A) and, in the closed position of the lid (2) on the container (1), sealingly abuts at least the radially outer groove flank and sealingly closes the container (1) when the sealing film (9) is removed.

Description

Sealed rim container

The invention relates to a container with a lid according to the preamble of claim 1, wherein the container is closed or can be closed with a sealing foil.

Such containers with lids, in which the container is sealed with a removable sealing film, are used in many different ways. The container is sealed airtight by the sealing film. In this way, the contents of the container are particularly protected from environmental influences, for example if the contents of the container consist of perishable goods such as food, a composition with volatile components or the like. The container often contains several portions of container content, so that after the container has been opened for the first time by removing the sealing film, a remainder of the container content remains in the container for later use. However, the container can then no longer be sealed tightly with the sealing film. In this case, the lid is generally designed as a slip-on lid, as for example in the case of the container according to EP 3153422A1. The lid that is put on after the sealing film has been removed then offers a certain protection against coarser particles or objects, but the slip-on lid that is put on does not close the container in a liquid-tight manner. This means there is a risk that when the corresponding container is transported with the sealing foil removed, the container interior stops undesired leakage even when the lid is on. There is also the problem that, despite the lid being put on, the remaining contents of the container can spoil relatively quickly, since air can enter the interior of the container due to the leak between the container and the lid. Correspondingly, if the contents of the container contain volatile components, these volatile components can escape through the leak between the container and the lid and undesirably change the contents of the container.

In order to avoid these disadvantages, partially emptied food containers are often provided with a film such as cling film or the like, but this is rather makeshift and does not represent a satisfactory solution with safe handling of the container. It is also known to close the container with a piece of film or plastic-coated textile material or the like, which is provided with an elastic band around the entire edge area, so that the elastic band rests against the outside of the container under pretension. Although this improves the airtightness of the container, an additional object is then required for closing the container and there is also no adequate transport security for the already opened container.

The invention is therefore based on the object of partially or completely solving the problems described above. In particular, the task is to provide a generic container with sealing film and lid, which protects the contents of the container from environmental influences and a safe even after initial removal of the sealing film from the container and partial emptying of the container contents Transport of the container closed again with the lid made possible without the contents of the container escaping unintentionally.

This object is achieved by a container with a lid according to claim 1 . Advantageous embodiments result from the dependent claims.

According to the invention, a circumferential skirt is formed on the upper edge of the container, radially on the outside, which has a fully circumferential groove open to the container opening with a radially inner and a radially outer groove flank, with the lid having a completely circumferential sealing web protruding from the underside of the lid which in the closed position of the lid on the container ("lid closed position") bears sealingly at least on the radially outer flank of the groove. To be more precise, the sealing web bears in a sealing manner on the inside of the outer flank of the groove. Through the sealing connection of the upper container edge with the seal foil, the container is closed, preferably liquid-tight and airtight, whereby a first sealing area for the container is formed This also applies to containers that are originally sealed with the sealing foil if the lid is fixed in its closed position on the container. As a result, in addition to the sealing film when the container is originally closed, a second sealing area is provided as the first sealing area through the interaction of the sealing web with the groove flank, which also remains intact when the container is partially or completely removed or sealed. unsealed sealing film prevents the contents of the container from escaping, for example when the container is being transported ters . The container closed again with the lid can thus, for example, be carried along by the respective person after the container contents have been partially emptied, without there being any risk of the contents of the container escaping. The lid can be fixed to the container with a press fit and/or with a positive fit, for example by forming a latching connection between the container and the lid. The sealing area between the sealing web and the groove side of the container groove is preferably liquid-tight. This also protects the rest of the contents of the container from external environmental influences, such as air ingress from the environment and/or volatilization of components of the contents of the container, so that the durability of the remaining contents of the container is significantly increased by the second sealing area. Furthermore, as a result, the use of additional means for closing the container is not necessary. In the case of containers that are originally closed by means of the sealing foils, the lid also protects the sealing foil from external damage, as is also usual with a conventional slip-on lid, and also enables several originally closed or partially emptied containers to be safely stacked one on top of the other.

The material of the sealing web preferably corresponds to the material of the central area of the cover and/or other partial areas of the cover. The material of the sealing area of the groove flanks preferably corresponds to the material of the side wall of the container. As a result, the container and lid can be produced particularly easily, in particular using the injection molding process, preferably in each case using the 1-component injection molding process. The container preferably consists of a plastic material which can be sealed with a suitable sealing film under the action of heat. In general, within the scope of the invention, the sealing foil can be, for example, a light metal foil such as aluminum foil or else a plastic foil or the like.

It goes without saying that the sealing web of the lid in the closed position of the lid rests around the entire circumference of the container in a sealing manner at least on the radially outer groove flank of the container groove accommodating the lid sealing web. In addition, the sealing web can optionally also rest against the radially inner groove flank of the container groove, without this being absolutely necessary. If there is no sealing area on the inner groove flank, the container groove can be formed with a lower height and the container can therefore be produced more compactly and cost-effectively. In particular, the sealing area between the cover sealing web and the radially outer groove flank of the container groove can also extend over a greater height (i.e. extension in the direction of the main container axis) than the optionally additionally provided sealing area of the sealing web with the radially inner groove flank of the container groove. With regard to the container height above the possible sealing area between the sealing web and the radially inner (generally: "inner") groove flank, a non-sealing area can be provided between the sealing web and the inner groove flank, in which, for example, an area such as in particular the edge area of the sealing film in the case of the original sealed Container can be arranged, whereby this edge area of the sealing film is not adhered to the container in a sealing manner. This film edge area can, for example, only be flanged or folded over in order to be arranged in the described non-sealing area between the sealing web and the inner ("internal") groove flank . This fringe area Sealing film can be used, for example, to be able to grip the sealing film manually in order to be able to loosen or pull it off the originally sealed container in some areas in order to gain access to the container contents. In particular, this film edge area can also only extend over part of the container circumference, for example be arranged locally, in particular in the form of a tab on the sealing film, which protrudes radially from it and/or can be gripped manually in order to wrap the sealing film (generally abbreviated to: "Foil" ) to be able to pull off the container.

The fastening means of the lid preferably surround the container edge radially on the outside in its closed position, ie in its position closing the container. Preferably, the fastening means of the lid and / or the fastening means of the container are as fully around the lid or. the container encircling edge formed, for example as a clamping edge, preferably in each case as a locking edge.

Preferably, the sealing web of the lid (generally: "sealing web") is spaced in the closed position of the lid with its lower edge in the direction of the container height from the groove bottom of the container groove Containers, which can be designed in particular as clamping and/or latching means, are guaranteed. The lid can be manually pressed onto the container in the longitudinal direction of the container in order to close the container by means of the lid, with the said distance between the underside of the sealing web and the bottom of the groove ensures that the sealing web is always arranged in its desired position relative to the container in order to ensure a reliable Create a seal between the lid and the container. At the same time, this ensures that the fastening means between the container and the lid can reliably interact to fix the lid to the container.

In its closed position on the container, the sealing web of the lid is preferably spaced at least partially around the circumference, particularly preferably over the entire circumference, in the radial direction from the radially inner groove flank or bears against the radially inner groove flank with a smaller contact pressure force than on the radially outer groove flank. The radial distance between the sealing web and the radially inner groove flank is preferably dimensioned in such a way, based on the width of the distance in the radial direction, that the sealing film can or does engage in a partial area in this distance. is arranged in particular with the original sealed container. This distance thus preferably corresponds to >1 times or >1.25 times or >1.5 times the thickness of the sealing film. In the originally sealed container, the sealing web is preferably spaced radially from said partial film area. This distance can thus be in the range of a few hundredths of a millimeter to a few tenths of a millimeter, for example between 2/100 mm and 5/10 mm or >5/100 mm or >10/100 mm, without being limited to this. Preferably, this distance is <10% or <5% or <2% of the width of the groove at the height of the edge area of the foil engaging in the groove. This partial area of the sealing film that engages in the groove can in particular be an edge area of the film that is not sealed to the container, in particular in the form of an edge area of the film that extends only over part of the circumference of the container, such as in particular a manually grippable tab, but possibly also as a complete film edge area . After removing the lid from the original sealed one As a result, the unsealed film edge area or the tab in question must be gripped manually in order to detach or remove the sealing film from the container. to remove . Said distance between the sealing ridge and the radially inner groove flank or the area of lower contact pressure of the sealing ridge on the inner groove flank compared to the contact pressure on the outer groove flank can extend over part of the groove depth, for example over > 20% or > 50% of the groove depth , particularly preferably over the entire groove depth. Said distance or area of lower contact pressure preferably extends at least over the area of the groove depth in which the partial area of the sealing film engages. The "groove depth" is understood here in particular as the distance between the upper edge of the radially outer groove flank and the groove base in the direction of the container height. This distance ensures on the one hand that when the lid is placed on the container and thus when the sealing web engages in the container groove The area of the sealing foil arranged in the container groove is not damaged, in particular when the container is originally closed or closed again, which also applies accordingly to the removal of the lid from the container in order to reliably form the (second) sealing area between the container and the lid.This also prevents said sealing area from warping or deforming in the area of the film edge area arranged in the groove due to the material thickness of the same, which could lead to leakage could lead to . It must be taken into account here that the edge area of the film that engages in the groove is often not smooth but somewhat wrinkled due to the curvature of the container. A possible embodiment is already given by the fact that in the closing Position of the lid on the container the lid sealing rib rests against the radially inner groove flank with a smaller contact pressure than on the radially outer groove flank. In this way, too, the sealing area between the sealing ridge and the groove flanks is essentially provided by the interaction of the radially outer groove flank with the sealing ridge and when an area of the sealing film engages in the container groove, the surface pressure between the sealing ridge and said film area is reduced, which reduces the risk of Damage to said foil area when fastening and/or removing the lid from the container is reduced and the tightness of the second sealing area is increased.

The radial distance between the sealing web and the inner groove flank is particularly preferably formed over the entire circumference. On the one hand, this avoids different contact forces being present in the sealing area between the sealing web and the radially outer and/or radially inner groove flank when the partial area of the sealing film engages in the container groove. On the other hand, this ensures that the lid can be placed back on the container in any rotated position about the main axis of the container when it is placed back on the container after the first partial removal of the container contents. This applies in particular to the design of the container as a round container with a round lid. Said distance can also extend only partially around the container, in particular at least over the entire circumferential extent of the film edge region engaging in the groove. If there are several twisted positions of the lid relative to the longitudinal axis of the lid, in which the lid can be fixed to the container, for example for a tank with an oval, square or rectangular tank Öf fnung, it is preferably in each of the possible arrangements or. Twisted positions of the lid to the container given a corresponding distance between the sealing web and the radially inner flank of the groove. As a result, in any possible twisted position of the lid relative to the container when the lid is attached to the container, the foil edge region that engages in the groove can be arranged in such a distance between the container and the lid, which is advantageous when the container is closed again. Within the scope of the invention, the terms “completely” and “partially” each relate generally to the scope of the container and/or lid, unless the specific context indicates otherwise.

The container groove accommodating the sealing web is preferably part of an at least essentially U-shaped channel, the U-shaped channel preferably being formed directly on the upper container edge. The radially outer groove flank and the radially outer leg of the channel and/or the groove base and the channel floor, which connects the radially inner and outer channel leg, each preferably match as a component area of the container. The radially inner leg of the channel preferably has a greater height than the inner side of the groove, with this region of the leg of the channel protruding above the side of the groove preferably representing a connecting region of the groove with the upper edge of the container. The channel legs each form a side wall of the channel. It is assumed here that the inner and outer groove flanks have the same height, starting from the groove base. Said distance between the sealing web and the inner groove flank or area of lower contact pressure preferably also extends over the connection area of the groove with the upper container edge. The statements on the training This distance between the sealing web and the inner groove flank generally also applies to the distance between the sealing web and the area of the inner channel leg which protrudes beyond the inner groove flank.

In general, the container according to the invention with a lid can have any geometry, for example as a round container, elliptical or oval container, rectangular container, container with an irregular shape or the like, said geometry being particularly relevant to the upper edge of the container or. the container opening refers.

The radial distance between the sealing web of the cover and the inner groove flank is particularly preferably arranged at the level of the sealing region of the sealing web with the radially outer groove flank. This refers to the closed position of the lid on the container. Said radial distance can extend over part or preferably the entire height of the sealing area. This results in the advantages described above in a special way. This also makes it possible for the edge area of the sealing film that engages in the container groove to be arranged relatively deep in the container groove, without thereby impairing the sealing area between the sealing web and the outer groove flank or when the lid is placed and thus when the sealing web is engaged into the container groove to damage said foil area.

In general, within the scope of the invention, the area of the sealing film that engages in the container groove can optionally also be connected to the container edge or arrested the radially inner groove flank, for example, be arrested sealingly, but preferably no arrest or is. sealing detention tion of the same given. This considerably simplifies the sealing of the container by means of the sealing foil and also the detachment of the sealing foil from the container.

The radially outer groove flank of the container is preferably arranged with its upper edge below the upper edge of the container. On the one hand, this results in a favorable geometry of the container with the lid, since this avoids an upwardly projecting lid edge region in the region of the radially outer edge of the lid. This avoids the containers getting caught with one another when they are arranged next to one another. In particular, this also makes it easier to seal the container by means of the sealing film by using a sealing plate, which can be heated, for example, since this prevents the upper edge of the radially outer flank of the groove from coming into contact with the sealing tool during the sealing process, which causes the groove flank upper edge could be damaged. The sealing film is preferably sealed exclusively to the upper, at least essentially flat, container edge. As a result, the container sealing as well as the detachment of the sealing foil from the container in order to allow access to the container contents is made significantly easier.

On its radially outer edge, the lid preferably has an apron which is pulled downwards and preferably completely surrounds the lid, which skirt surrounds the container groove radially on the outside. The cover apron preferably overlaps the container groove over its entire height and preferably protrudes beyond the groove in the direction of the container bottom. The fastening means for fixing the lid in its closed position on the container are preferably arranged on the lid apron. The ones with the lid fasteners The corresponding fastening means of the container are preferably arranged on the outside of the container, preferably on the outside of the outer groove flank of the container groove, if necessary also on a flange or projection that extends from the bottom of the groove or the outer groove flank in the direction of the container bottom and which partially or completely surrounds the container can . However, such a flange or projection is preferably not provided. The lower edge of the radially outer groove flank is particularly preferably designed as a fastening area as fastening means of the container for the lid. The fastening means of the cover, preferably in the form of a clamping or, in particular, latching edge, works together with the lower edge of the groove on the outside, fixing the cover. The lower edge of the groove flank can be gripped under by the snap-in edge of the cover. As an alternative or in addition, the explanations regarding the lower edge of the groove can also relate to the radially outer boundary of the groove base, with this boundary preferably being in the form of an edge. The bottom of the groove and the outer flank of the groove preferably converge to form an edge. As a result, the lid and container are structurally simple overall, can be produced with little use of material and can therefore be produced inexpensively and can be produced easily as an injection molded part with very narrow tolerances, and with high tightness of the second sealing area. In particular, this avoids fastening means on the inside of the outer flank of the groove, which would be complex to manufacture in terms of shaping, and also result in less tightness in the second sealing area due to the then more complicated geometry of the fastening connection between container and lid and thus also the sealing geometry between the container and the lid, which includes the lid sealing web. Such a complex component geometry metry, for example with a bead-shaped elevations and / or depression as a fastening area of the container, which are always associated with a certain delay in the manufacture of components, for example due to material shrinkage of containers produced by injection molding or. Cover , is thus avoided .

In the closed position of the lid, the lid apron provided with the lid fastening means, which can form the outer circumference of the lid, preferably rests with a certain prestress on an area of the same that preferably extends around the entire circumference of the container, preferably an area on the outside of the container. Said container area is preferably the radially outermost edge area of the container, particularly preferably the outer groove flank of the container groove and/or a partial area of the groove base. This ensures that the lid is securely fastened to the container, even when the sealing film is removed. Furthermore, the sealing web of the container is subjected to a radial force against the outer groove flank, more precisely against the inside of the outer groove flank, resulting in a particularly high tightness of the second sealing area of the container, ie even when the sealing foil is removed. As a result, the containers and lids can also be easily manufactured using the injection molding process.

The fastening means for fixing the lid to the container are preferably designed as latching means, which ensures that the lid is securely seated on the container even when the sealing foil is removed.

Preferably, the fastening means of the container for

Determination of the lid in its closed position at height of the groove base and the container groove accommodating the cover sealing web and/or below the groove base. "Below" here means directed towards the bottom of the container. This prevents the container fastening means from influencing the design of the groove, in particular the outer groove flank, during container manufacture, which could otherwise be the case, for example, with an injection-molded container due to material shrinkage.

Particularly preferably, the fastening means of the lid for fixing the lid to the container in the closed position of the lid are arranged at the level of the groove base or below it. As a result, the lid is particularly adapted to an advantageously designed container, in which the fastening means are preferably arranged at the level of or below the bottom of the groove.

The fastening means of the container and lid are preferably arranged below the sealing area of the sealing web of the lid engaging in the groove in relation to the height of the container. This ensures that the sealing area between container and lid could not be impaired by moldings of the respective fastening means in the sealing area, as could be the case in particular with material shrinkage of injection-molded plastic containers with plastic lids. Furthermore, this makes it possible in a special way that when the lid is fixed on the container, the sealing area can be pressed against the sealing area of the radially outer groove flank of the container groove with a particularly favorable effect of force on it, for example by a lid edge resting under prestress on the outer edge of the container, such as the above described cover apron. As a result, with a simple production process Position of container and lid given a high tightness of the second sealing area as well as a secure fixing of the lid on the container.

The radially inner and/or the radially outer groove flank preferably extends at least essentially parallel to the main axis of the container. The main axis of the container extends generally through the center of the container bottom and the center of the container opening. The inner and/or outer groove flank can independently of one another have an angle of less than or equal to 30° or less than or equal to 20°, preferably less than or equal to 15° or less than or equal to 10° or less than or equal to 5° to the main axis of the container. This can also apply to both groove flanks. As a result, the container can be easily produced in terms of molding in the injection molding process, and the container is also reliably sealed by the second sealing means, due to a particularly favorable application of force to the lid sealing web on the radially outer and/or radially inner groove flank.

Preferably, the inside and/or outside of the radially outer groove flank are smooth-walled, with the inside of this groove flank being oriented toward the inside of the groove and the outside toward the outside of the container. Preferably, the inside of the radially inner groove flank is smooth-walled, with the inside of this groove flank being oriented toward the interior of the groove. Preferably, the inner side of the radially inner leg of the channel, which is oriented toward the inside of the channel and thus toward the inside of the groove, is smooth-walled. Due to the smooth-walled design, projections or beads protruding in the radial direction, such as e.g. B. Fastening or latching beads, and/or located in radial ler direction stabbing indentations of the respective inner or Outside areas avoided. "Convexity" is generally understood to mean a radial indentation, which is also avoided here. Furthermore, the radially inner and/or radially outer groove flanks do not form an undercut when viewed in the direction of the main axis of the container, so the groove preferably has a constant width over its height or widens, preferably continuously, from the bottom of the groove to the opening of the groove. This enables short manufacturing cycles of the container in the injection molding process. The container can also be easily demolded from the injection molding tool as a result, since the groove and/or the groove flanks preferably have no undercut over their height , thereby avoiding the risk of damage to the sealing and/or fastening areas of the container during demoulding.This also enables high dimensional accuracy of the container produced, in particular the inner and/or outer surfaces mentioned, and thus high tightness of the second sealing area of the container .

The radially outer groove flank of the container preferably forms the outer edge of the container and/or the bottom of the container groove delimits the container edge in the direction of the container bottom. This results in a particularly compact design of the container. Furthermore, this results in a particularly low use of material for the production of the container, which means that it is inexpensive. Furthermore, this simple design ensures that the sealing areas of the container, ie the sealing edge and/or the sealing area of the container groove can be manufactured with high precision, in particular using the injection molding process.

Preferably, the one receiving the lid sealing rib

Container groove Part of a preferably at least essentially Chen U-shaped channel, wherein the channel is preferably formed directly on the upper edge of the container. The outer leg of the channel preferably has a greater height than the radially inner groove flank, the groove being defined in that the radially inner and outer groove flanks have the same height, ie the same extension in the direction of the main container axis. This also results in the aforementioned advantages in a special way. Furthermore, the container has a particularly compact design and has a relatively small diameter in relation to the container volume. Furthermore, in this way the cover can have a relatively small diameter in relation to the container volume. This reduces the material requirement in the manufacture of the container and/or lid. Furthermore, this results in a particularly favorable geometry of the fastening area of the container and lid with regard to a secure attachment of the lid to the container and also with regard to a good seal of the container, comprising or consisting of container and lid.

Particularly preferably, the fastening means of the lid skirt interact with the radially outer lower edge of the container groove accommodating the lid sealing web, in order to fix the lid on the container. This results in a particularly compact design of the container and also a particularly precise fit of the sealing web on the corresponding sealing surface of the respective groove flank, in particular the radially outer groove flank. This applies in particular when the cover skirt rests against the corresponding fastening area of the container with a certain pretension in the closed position of the cover. This preload can be given in the radial and/or axial direction of the main axis of the container. This is in particular favorably the cover sealing web is pressed against the container sealing surface.

Preferably, there is a distance between the upper edge of the container and the section of the lid that overlaps it, which allows the sealing foil to be arranged. This ensures that when the lid is placed on the container, the sealing foil is not damaged, particularly in the area of the sealed connection with the container.

The lid is preferably designed in such a way that in its closed position on the container it has a central area which spans radially inward to the upper container edge and which is arranged completely above a flat sealing film which spans the container opening in terms of its surface area. The lid thus does not reach into the container opening with a partial area. As a result, an evenly arranged sealing film can be provided which spans the container opening and which closes the container, in particular in the original state.

The sealing edge on the upper edge of the container is preferably designed to be flat over the extent of the container circumference, said plane being arranged perpendicularly to the main axis of the container. This allows the container to be sealed easily using a sealing tool with a flat contact surface on the sealing film over the entire container circumference, which makes sealing easier. The upper edge of the container the sealing area between the sealing film and the upper edge of the container preferably has a radial extension of greater than/equal to 1 mm or greater than/equal to 2 mm, preferably greater than/equal to 3 mm, for example up to 4 mm or more. The invention is described below using an exemplary embodiment and explained in the drawings. All features of the exemplary embodiment are also generally disclosed within the scope of the invention, independently of one another or in combination with one another. The same features are provided with the same reference numbers. Show it:

FIG. 1: a side view of a container according to the invention with a lid and sealing film;

Figure 2 is a sectional view along line A-A of the container of Figure 1;

FIG. 3: an exploded representation of the container with sealing film and lid according to FIG. 1;

FIG. 4: an enlarged cross-sectional view of the edge area of the container with lid and sealing film according to FIG. 2;

Figure 5: a schematic enlarged representation of the sealing area according to Figure 4.

FIGS. 1-5 show a container with a lid, the container 1 and/or the lid 2 preferably being designed as plastic parts. The container 1 has a peripheral side wall 3, which forms an upper container edge 4 and a container opening 5, and a container bottom 6. The container is designed here as a round container, without being limited to this. Container 1 and lid 2 have mutually corresponding fastening edges 7, 8 for releasably fastening the lid to container 1, the fastening edge of the lid surrounding the container edge radially on the outside in its container-closing position. The upper container edge 4 is designed as a sealing edge and is adapted to be connected to a sealing film 9 that closes the container openings 5. or with such a sealing film 9 which closes the lid opening 5 and is sealed.

On the upper container edge 4, a circumferential skirt 15 is formed radially on the outside, which has a circumferential groove 16 that is open towards the container opening 5 and has a radially inner and a radially outer groove flank 16a, 16b. The lid 2 has a completely circumferential sealing web 21 that protrudes from the underside of the lid 2A and, in the closed position of the lid 2 on the container 1, rests sealingly at least on the radially outer groove flank, and when the sealing foil 9 is removed closes the container 1 in a sealing manner.

In the closed position of the lid, the sealing web 21 of the lid 2 is at a distance from the bottom of the groove 16c with its lower edge 21a in the direction of the height of the container (see FIG. 5). In its closed position on the container, the sealing web 21 of the lid 2 is spaced at least partially around the circumference, here over the entire circumference, in the radial direction from the radially inner groove flank 16a by the distance d. The distance d is dimensioned in such a way that the sealing web can be separated from an area of the sealing foil that engages in the groove, e.g. a pull-on tab that is to be gripped manually, is radially spaced and thus, particularly in the original closed container, does not come into contact with said film edge area, or at most with low surface pressure. If necessary, the sealing web 21 can also bear against the radially inner groove flank 16a with a smaller pressing force than on the radially outer groove flank 16b. When the sealing film 9 is arranged on the container, in particular when the container is originally sealed, a tab 9a of the sealing foil 9 , or generally an edge area of the sealing foil , is arranged . The radial distance between the sealing web 21 and the inner groove flank 16a is formed over the entire circumference. The radial distance d between the sealing web 21 of the cover 2 and the inner groove flank 16a is arranged at the level of the sealing region 21a of the sealing web 21 with the radially outer groove flank 16b. The radially outer groove flank 16b of the container groove 16 is arranged with its upper edge 16b below the upper container edge 4 .

The sealing film 9 is sealed exclusively with the upper, at least essentially planar container edge 4, which forms the sealing edge. In the originally closed container, the sealing foil 9 spans the container opening in one plane. The central area of the cover, which covers the container opening when the container is closed, is arranged completely above the container opening, preferably also when the sealing film is removed. Between the lid area that extends over the sealing edge and the sealing edge or A distance is provided at the upper edge of the container, in which the sealing film extends when the container is originally sealed, the distance preferably being greater than/equal to the film thickness.

On its radially outer edge, the lid 2 has a skirt 25 which is drawn downwards and which surrounds the container groove 16 radially on the outside and here also completely overlaps in terms of height. The cover skirt 25 extends over the entire height of the groove flank 16b on the radially outer side and is pulled downwards beyond this towards the bottom of the container. A fastening means 8 , preferably as a latching means, here in the form of a full-circumferential latching edge, is arranged on the cover skirt 25 for fixing the cover in its closed position. The fastening means 8 of the cover skirt 25 work together to fix the cover on the container with a partial area of the container groove, here with the radially outer lower edge 16d of the radially outer groove flank of the container groove 16 .

The fastening means 7 of the container 1 are for fixing the lid 2 in its closed position at the level of the groove base 16c, here on the lower edge of the radially outer groove flank or. arranged on the outer edge of the groove base, they can optionally also be arranged below the same, for which purpose a flange or projection protruding towards the container bottom can be arranged on the groove base. The fastening means 8 of the cover are arranged to fix the cover in its closed position at the level of the groove base 16c or below it. The fastening means 7 , 8 of the container and lid are arranged in relation to the height of the container below the sealing area of the sealing web 21 of the lid engaging in the groove 16 . The radially inner and/or radially outer groove flank 16a, 16b extend at least essentially parallel to the main axis H of the container. The groove widens continuously from the bottom of the groove to the opening of the groove without forming an undercut in relation to the height of the groove. The radially outer groove flank of the container forms the outer edge of the container and/or the groove base 16c delimits the container edge in the direction of the container bottom. The inside and/or outside of the radially outer groove flank 16a and the inside of the radially inner groove flank are smooth-walled. Furthermore, the inner side of the radially inner leg of the channel is designed with smooth walls. The radially inner groove flank 16a thus has no radial concavity or radial bulging, which also applies alternatively or additionally to the outer groove flank 16b.

When the lid is fixed to the container, the upper side of the radially outer groove flank rests against the lid area that extends over the groove flank.

The sealing web 21 receiving container groove 16 is as part of a preferably or. according to the exemplary embodiment at least essentially U-shaped channel 18 is formed. The channel is formed directly on the upper container edge 4 . The radially outer groove flank or the groove base can in this case the radially outer leg or Form the base, i.e. the floor, of the channel. The radially inner leg 18a of the channel 18 is preferably formed as an extension of the inner groove flank 16a groove, so that this leg is constructed higher in the direction of the main container axis than the inner groove flank. The area of the channel 18 that protrudes beyond the groove 16 to the upper edge of the container forms a flange 18 f that preferably runs completely around the container and is arranged here as an extension of the inner groove flank in relation to the main axis of the container. The inner groove flank 16a is set more obliquely to the main container axis than the outer groove flank 16b. The groove flange 18f is set more obliquely to the main axis of the container than the outer groove flank 16b. The flange 18 f preferably encloses an angle of <30° or <20°, preferably <10°, for example <10°, with the main axis of the container. approx . 5° a . The flange 18 f here merges steplessly and preferably without a transition area into the inner groove flank, preferably in a straight line continuation of the groove flank. The flange 18 f encloses the same angle here with the main axis H of the container as do the inner flanks of the groove with the main axis of the container, generally the two differ Angle of flange and inside groove flank to the main axis of the container by <30° or <20°, preferably <10° or <5° or practically not. The inner leg 18a of the channel 18 is smooth-walled here, without inward arching, deepening and/or bulging in the radial direction. The smooth-walled design of the radially inner and/or outer groove flank and/or the radially inner channel leg also preferably includes that this also has no bead.

Claims

26

Sealed rim container

Claims Container with a lid, the container (1) and/or the lid (2) preferably being designed as plastic parts, the container (1) having a peripheral side wall (3) which has an upper container edge (4) and a container opening ( 5) and has a container base (6), the container (1) and the lid (2) having fastening means (7, 8) which correspond to one another for the detachable fastening of the lid to the container (1), the upper container edge (4) is designed as a sealing edge and adapted to be sealingly connected to a sealing foil (9) closing the container openings (5), or is sealingly connected, characterized in that on the upper container edge (4) radially on the outside of this a peripheral skirt (15) is formed, which one to the container opening (5) towards open, fully circumferential groove (16) with a radially inner and a radially outer groove flank (16a, 16b), that the lid (2) a n from the underside (2A) of the lid, has a completely circumferential sealing web (21) which in the closed position of the lid (2) on the container (1) at least on the radially outer lying groove flank sealingly and with distant

Sealing foil (9) seals off the container (1). Container according to Claim 1, characterized in that the sealing web (21) of the lid (2) is spaced at a distance from the bottom (16c) of the groove (16) in the closed position of the lid with its lower edge (21a) in the direction of the container height. Container according to Claim 1 or 2, characterized in that the sealing web (21) of the lid (2) in its closed position on the container is spaced at least partially around the circumference in the radial direction from the radially inner groove flank (16a) or is attached to the radially inner groove flank (16a ) with a smaller contact pressure applied than on the radially outer groove flank (16b). Container according to Claim 3, characterized in that with the sealing foil (9) arranged to be sealed on the container, a region (9a) of the sealing foil (9) in the radial distance between the sealing web (21) of the lid (2) and the radially inner groove flank (16a ) is arranged. Container according to Claim 3 or 4, characterized in that the radial distance between the sealing web (21) and the inner groove flank (16a) is formed over the entire circumference. Container according to one of claims 3 to 5, characterized in that the radial distance between the sealing web (21) of the lid (2) and the inner groove flank (16a) at the level of the sealing area (21a) of the sealing tion web (21) is arranged with the radially outer groove flank (16b). Container according to one of Claims 1 to 6, characterized in that the radially outer groove flank (16b) of the container groove (16) is arranged with its upper edge (16b) below the upper container edge (4). Container according to one of Claims 1 to 7, characterized in that the sealing foil (9) is sealed exclusively with the upper container edge (4) which is at least essentially planar. Container according to one of Claims 1 to 8, characterized in that the lid (2) has a downwardly drawn skirt (25) on its radially outer edge, which surrounds the container groove (16) radially on the outside, and that on the lid skirt (25 ) a fastening means (8) for fixing the lid in its closed position is arranged on the container. Container according to one of Claims 1 to 9, characterized in that the fastening means (7, 8) of the container (1) and the lid (2) are designed as locking means. Container according to one of Claims 1 to 10, characterized in that the fastening means (7) of the container (1) for fixing the lid (2) in its closed position are arranged at the level of the groove base (16c) or below it. Container according to one of claims 1 to 11, characterized in that the fastening means (8) of the ckels for fixing the lid in its closed position are arranged at the level of the groove base (16c) or below it. Container according to one of Claims 1 to 12, characterized in that the fastening means (8) of the cover skirt (25) fasten the cover (2) to the container (1) with the radially outer lower edge of the container groove (16) receiving the sealing web (21). defining interaction. Container according to one of Claims 1 to 13, characterized in that the fastening means (7, 8) of the container and lid are arranged below the sealing area of the sealing web (21) of the lid engaging in the groove (16) in relation to the container height. Container according to one of Claims 1 to 14, characterized in that the radially inner and/or radially outer groove flank (16a, 16b) extend at least essentially parallel to the main axis H of the container. Container according to one of Claims 1 to 15, characterized in that the radially outer groove flank of the container forms the outer edge of the container and/or that the groove base (16c) delimits the container edge in the direction of the container bottom. Container according to one of Claims 1 to 16, characterized in that the container groove (16) receiving the sealing web (21) is part of an at least essentially U-shaped channel (18), and that the U 30-shaped channel (18) is formed directly on the upper edge of the container (4). Container according to one of claims 1 to 17, characterized in that the inside and / or outside of the radially outer groove flank (16b) is smooth-walled and / or that the inside of the radially inner groove flank (16a) is smooth-walled.