EP2502838B1 - Seal structure, in particular for resealable container lids, resealable container lid containing this seal structure and container comprising this container lid - Google Patents

Abstract

The lid (2) has a lid surface having an upper side, a lower side, circumferential edge (6), and a zone (12) for a dispensing aperture delimited by a circumferential weakening profile. A lever tab (14) is fastened to the lid surface via a fastener (24). The lever tab includes a closure module to an end portion (16), where the module comprises a closure collar that is rested against an upper side of the surface, and is extended along the aperture in a sealing manner when the tab is placed on the upper side of the surface. A reclosable aperture closure is framed by the collar. An independent claim is also included for a method for manufacturing a reclosable container.

Description

The present invention relates to a seal construction for resealable container lid, a resealable container lid, containing this seal construction, and a container containing this container lid.

Disposable containers for liquids have been used for a long time in a wide variety of shapes and sizes. This is particularly often the case with beverage cans made of light metal, in which the can lid is equipped with a so-called clip closure. According to a first embodiment variant, by pressing this clip closure, the cover piece forming the dispensing opening is pressed in the direction of the can interior and remains permanently connected to the can lid. According to a further embodiment variant, this closure is removed together with the area forming the dispensing opening or cover piece when the flip-top closure is actuated. Such closure systems can be found for example in the WO 97/030902 . DE 100 18 685 C2 . US 4,148,410 . EP 564 725 A1 . WO 2005/056400 A1 and GB 2 379 917 A described. Once these locking systems have been actuated, an effective resealing of the containers with the lid piece pressed down or pushed out is basically no longer possible. This is perceived as very disadvantageous, especially in the case of larger beverage containers, since they are generally not drunk completely empty after the first opening. For example, if it is sugar-containing soft drinks, there is a risk during the summer months that insects get into the container. In addition, the freshness, taste and quality of the drink suffer when it is kept unlocked. In particular, beverages containing milk and yoghurt, when exposed to ambient air for a prolonged period of time, permanently lose their taste and quality or even become completely inedible. The non-resealable closure systems have proved to be particularly disadvantageous in beverage containers containing carbonated beverages. Without a suitable closure, the carbon dioxide escapes very quickly with the result that the beverage loses its characteristic flavor.

There has therefore been no lack of attempts to get to resealable beverage cans. A first approach is based on can ends, which contain a discharge opening from the outset. Suggestions that go in this direction can be found eg in the WO 2007/039367 A1 . WO 2008/054636 A2 . DE 20 2005 019 224 U1 . US 3,952,911 and DE 601 01 995 T2 , However, such containers are regularly not nearly as dense as, for example, over a longer period of time, such as beverage cans, which are made of a can body and a can lid, which has no predetermined dispensing opening. Also, the production of such beverage containers with a predetermined discharge opening usually very material and labor intensive and costly, if you want to achieve a high degree of tightness, especially after resealing.

For beverage containers which have no predetermined dispensing opening, according to a further embodiment, reclosable systems are obtained in that after the first opening operation the lid or part of the lid is provided with an additional cover. Such systems are eg in the DE 100 18 685 C2 and DE 92 11 883 U1 disclosed. Instead of providing a complete cover of the can lid, also rotatably mounted on the can lid partial covers are known. According to the DE 203 00 327 U1 For example, after an initial rupture or rupture of a dispensing opening in the lid surface, a planar element can be pivoted about a pivot point on the lid surface via the dispensing opening. From a comparable locking mechanism is in the WO 2005/056400 A1 Made use of. From the WO 99/67150 A1 For example, a resealable can lid is known in which the dispensing opening is initially closed with a removable film that is integral with the can end. After removing this film, a cap connected to the can lid via a living hinge can be inserted flush with the dispensing opening. The in the WO 99/67150 A1 described closure variant is suitable for beverage cover made of plastic materials.

The US 4,887,712 deals with a beverage can, whose discharge opening can be generated via a clip closure. The outlet opening forming surface of the can lid is in this case pressed in the direction of the can interior and is captively connected to the can lid. The locking bracket rotatably mounted about an attachment point, the locking lug opposite an indentation, which corresponds to the contour of the dispensing opening and can be introduced after rotation of the closure bracket in this purpose for the purpose of closing. A sufficient degree of tightness, in particular gas tightness, is can not be obtained with this embodiment. That in the GB 2 379 917 A described closure system essentially corresponds to the US 4,887,712 ,

From the DE 89 11 286 U1 also a can lid protrudes with a rotatably mounted on the cover wall tear tab. This rotatably mounted pull tab has a closure element, which is present in the closed position above the opened dispensing opening and can engage in it in a locking manner. The tear tab is integrally formed with the closure element of sheet metal.

The WO 2004/056667 A1 discloses a beverage can closure in which the grip tab is designed to reseal the dispensing opening resulting from the breaking of a frangible line. Also in this embodiment, the grip tab is pivotally mounted vertically rotatable about an axis disposed in the cover and the closure means is adapted in shape and size of the discharge opening to ensure a reasonably tight closure.

In the DE 299 14 231 U1 one arrives at a resealable Dosedeckel by the entire can lid is removed via a less stable in the region of the Abziehlasche fold edge of the edge of the can. In this case, the integrity of the can lid is not destroyed, so that it can be plugged after use of the can again on the edge of the can.

In order to achieve resealable can closures, which have a higher degree of tightness, are according to the DE 10 2005 057 755 A1 and the DE 10 2005 004 759 A1 To integrate threaded fasteners in the can lid. In this case, it may be provided, for example, that the first time the threaded closure is actuated, a securing foil is destroyed.

From the DE 693 02 424 T2 is a resealable can lid closure, in which can be pushed and clamped on a pivotable about an attachment point tensile or tear tab made of metal, a plastic sleeve. The peripheral edges of this plugged sleeve are designed such that the dispensing opening can be completely covered. So that the rotatably mounted pull tab with the plastic sleeve attached thereto remains above the dispensing opening, a groove is provided on the outer peripheral edge of the tab, which engages in a latching manner in the peripheral beading area of the can lid. In this way, although the position of the pull tab is fixed over the discharge opening, a particularly high degree of tightness is not associated with this.

From the WO 2009/014409 A For example, a resealable beverage can lid is known in which the opening tool and the resealable beverage can closure are attached to one and the same hinged hinge which is present on the top side of the lid surface. Once the opening tool has penetrated into the inside of the can after the punching out of the provided with a not completely circumferential line of weakness opening area, only the lid closure can be moved over the common folding hinge. This lid closure forms a unitary component that can be folded into and out of the can opening as such.

The EP 1 826 132 A relates to a resealable closure for beverage cans, which can be used as a separate component in a can opening, which has been produced with a conventional lever tab. This separate component closure has a base part with an opening, which can be inserted into the can opening, as well as a movable along a hinged hinge closure part.

The reclosable cover variants known from the prior art are still always associated with disadvantages and leave desires open, for example with regard to the tightness of carbonated beverages. Also, the previously known from the prior art resealable lid systems are not usually suitable to with sufficient reliability in mass production to withstand the pasteurization, which many drinks are subjected to regular. If the dispensing or capping system does not allow for pasteurization which generally has temperatures in excess of 70 ° C and internal pressures of up to 7 bar, one is forced to resort to preservatives.

As far as the known from the prior art systems allow pasteurization at all, without the proposed resealable closure system is affected, this often succeeds only by having to use plastic components on the inside of the can lid. Here, however, one goes into the risk that components of the plastic material used in dissolved form get into the pasteurized beverage.

The present invention therefore an object of the invention to provide a resealable container lid, which is no longer subject to the disadvantages of the prior art and in particular allows a simple and reliable production in mass production and leads to beverage containers, where after first opening and reclosing the drink still over a longer period of time its original quality and, in carbonated drinks, the original concentration of dissolved carbon dioxide retains.

Accordingly, there has been found a seal construction for a reclosable container lid, comprising an elastic seal body and, in particular, adjacent to this elastic seal body, a seal pad having a bead facing toward the elastic seal body with a ridge and shoulders extending therefrom in opposite directions, the elastic one Sealing body, the bead facing, over a first and spaced thereof a second wedge-shaped elastic web, which taper in the direction of the bead and each rest against each other on opposite bead shoulders, which extend away from the ridge of the bead, and / or brought into abutment and further comprising a first seal wall spaced from the first resilient web opposite the direction of the second web and a second seal wall spaced from the second resilient web opposite the first one Direction of the first ridge, which are each spaced farther from the ridge of the bead than the first and second elastic web and which bear against the seal pad when the elastic webs bear against the bead shoulders.

• einen elastischen Dichtungskörper und, insbesondere anliegend an diesen elastischen Dichtungskörper, eine Dichtungsunterlage mit einer in Richtung des elastischen Dichtungskörpers gewandten Sicke mit einem Grat und sich hiervon in entgegengesetzten Richtungen erstreckende Schultern, wobei der elastische Dichtungskörper, der Sicke zugewandt, über einen ersten und beabstandet hiervon einen zweiten keilförmigen elastischen Steg,welche sich in Richtung der Sicke verjüngen und die jeweils einander an gegenüberliegenden Sickenschultern, welche sich von dem Grat der Sicke weg erstrecken, anliegen und/oder zur Anlage bringbar sind, sowie ferner über eine erste Dichtungswandung, beabstandet von dem ersten elastischen Steg entgegen der Richtung des zweiten Stegs und eine zweite Dichtungswandung, beabstandet von dem zweiten elastischen Steg entgegen der Richtung des ersten Stegs, verfügt, die jeweils weiter beabstandet von dem Grat der Sicke sind als der erste bzw. zweite elastische Steg und die an der Dichtungsunterlage anliegen, wenn die elastischen Stege an den Sickenschultern anliegen.

Furthermore, a reclosable container lid was found, comprising a lid surface having a top and a bottom and with peripheral edge and an area for a dispensing opening, bounded by at least one fully or partially circumferential weakening profile, characterized by at least one of the area for the dispensing opening, in particular adjacent, partially or completely circumferential bead on top of the lid surface; a lever tab rotatably attached to the lid surface via a fastener for at least partially opening the area to form the dispensing opening having a first end portion and an opposing second end portion, the first end portion in the open position being at least partially overlapped with a portion of the area for the dispensing aperture is or is present and wherein the second end region is located with respect to the first end region beyond the attachment means; wherein the lever tab on or adjacent to the second end region has a closure module which a closure collar, which is applied to the top of the lid surface or rests and which surrounds the dispensing opening in the closed position when applied to the top of the lid surface, in particular sealing, and, in particular bordered by the closure collar, comprising a reclosable opening closure;
wherein the closure collar has at least one circumferential seal, which can be applied to the upper side of the lid surface adjacent to the dispensing opening or rests and which sealingly interacts with the bead or is sealingly engageable; and
this seal comprising:

• an elastic sealing body and, in particular adjacent to this elastic sealing body, a sealing pad with a bead facing towards the elastic sealing body with a ridge and shoulders extending therefrom in opposite directions, the elastic sealing body facing the bead over a first and spaced therefrom a second wedge-shaped elastic web which tapers in the direction of the bead and which abut and / or abut each other on opposite bead shoulders which extend away from the ridge of the bead, and furthermore via a first sealing wall spaced from the bead first elastic web opposite to the direction of the second web and a second sealing wall spaced from the second elastic web opposite to the direction of the first web, each spaced farther from the ridge of the bead than the first and second, respectively elastic web and bear against the seal pad when the elastic webs rest against the bead shoulders.

Under Öffnerstellung in the context of the present invention, that orientation of the lever tab on the cover surface to be understood, in which the lever tab can be actuated to release the area for the discharge opening. The closure position in the sense of the present invention is understood to mean that orientation of the lever tab in which the closure module of the lever tab is present above the dispensing opening and can be connected or in particular connected to form a resealable closure.

Depending on the type of container, the lid surface can be made of plastic, metal or cardboard or comprise one or more of these materials. The same applies to the container body / the container. Cover surface according to the present invention comprises a flat structure, for example a metal and / or plastic layer. Of course, the lid surface of the container lid according to the invention may also be a multi-layered structure, for example comprising a metallic lid surface which has at least one plastic foil as a protective layer on the underside.

The container lid according to the invention may be an integral part or a separate component of a container. In the latter case, the container lid and container body can be connected to each other in a liquid-tight manner, for example by a person skilled in the art, e.g. by gluing or pressing, for example by means of a fold. For example, the peripheral edge of the lid surface may also include a flange for connection to the container body. In the case lid according to the invention, in a preferred embodiment, the peripheral edge may have an extension which extends axially away from the upper side of the lid surface. In this case, it may be provided in an advantageous embodiment that the axial extension of the edge is formed such that the extent of expansion is greater than the extent of expansion of the lever tab in the axial extent with respect to the cover surface in the Öffnerstellung when the area for the Discharge opening is still intact. In particular, the latter embodiment of a container lid according to the invention makes it possible to easily stack containers that are equipped with such container lids on each other.

A container body or container for the purposes of the present invention includes constructions with as well as without bottom element. This takes into account the fact that eg Metal beverage cans are often made in two parts or three parts. In other words, in the case of a two-part container, this container is connected to a container lid from a container body which already has a, in particular integral, bottom element. In a three-piece container this is made of a bottom element, a container wall and a container lid.

The reclosable container lids of the present invention can be used for a variety of container types. By way of example, beverage cans for e.g. carbonated drinks, milk cartons, (liquid) yoghurt containers or packaging for fruit juices. In addition to containers for drinks, the container lid according to the invention can of course also be used for containers in which liquid or powdered foods such as oil, vinegar or flour are offered. Also, the container lid according to the invention for such containers into consideration, with which means for personal hygiene such as shampoos and shower gels are available on the market.

The shape and size of the area for the discharge opening in the lid surface can vary within wide ranges and usually depends on the particular type of use of the container with which the lid according to the invention is provided. In one embodiment, it may be provided that the area for the discharge opening spaced. is present from the attachment means and in particular adjacent to the edge of the lid surface. The area for the dispensing opening is defined in an expedient embodiment by a completely or partially circumferential weakening profile. An advantage of the container lids according to the invention is that as long as the area for the discharge opening has remained intact, a passage of liquid through the container lid is made impossible with the highest level of security. In the case of beverage cans in particular, such a fluid-tight area for the dispensing opening is often also called score plate, and the weakening profile limiting or defining this area is also called score profile.

Fastening means for such lever tabs on the lid surface, as they can be used with the container lid according to the invention, are generally known. As far as its opening mechanism is concerned, the lever tab of the container lid according to the invention is also referred to in the prior art as a clip closure. In particular in the opener position, the first end region of the lever tab, in many cases also referred to as a latching nose, overlaps with a section of the area of the dispensing opening. By lifting the second end region of the lever lug, force is exerted on a section of the area of the delivery opening by means of leverage via the first end region or via the latching lug. causing the weakening profile to yield at or adjacent to the force application point and to pivot the area of the cover surface that previously covered the dispensing opening toward the interior of the container, thereby releasing the dispensing opening. The fastening means is preferably a rivet and is preferably in the center of the lid surface. In particular, depending on the size of the lid surface, especially relative to the size of the dispensing opening, the fastening means can also be attached to a different location of the lid surface.

The second end region of the lever tab comprises a closure module which is provided with a resealable opening closure, for example in the form of a flap or cover flap. This flap can be connected to the closure module, in particular the closure collar, for example via a hinge or a film hinge. In one embodiment, the resealable opening closure preferably has, on its side facing the upper side of the cover surface, a reversible first locking unit which, in interaction with a second locking unit corresponding thereto, provides a tight and reversibly operable opening closure on the locking collar. This may be, for example, a tongue and groove connection system. The closure collar according to the present invention comprises both a receiving element for the resealable opening closure and the extension of the closure module to the first end region, for example, to the connection to the first end of the holding element.

In a preferred embodiment, it is provided that the closure module, in particular the closure collar, on the side facing the upper side of the lid surface has at least one third locking device, which preferably corresponds substantially to the contour of the area for the dispensing opening, so that by actuating the locking device the closure module, in particular irreversibly connected or connected to the dispensing opening, wherein preferably the closure collar, partially or completely, bears under pretension on the upper side of the lid surface. The third locking device for preferably irreversible attachment of the closure module to the dispensing opening is advantageously a, in particular circumferential, ring snap connection or a snap hook snap connection. Such locking device systems are known in the art. As a rule, these systems can not be removed again after they have been locked.

In a particularly expedient embodiment, it is provided that the weakening profile surrounds the area for the dispensing opening except for a distance region, in particular adjacent to the first end region in the opener position and laterally offset to the line formed by the fastening means and the first end portion of the lever tab in the Öffnerstellung , In many cases, it has proven to be advantageous if, after the first break-up of the weakening profile, the area for the dispensing opening is not completely released, but remains connected to the lid area via the said spacing area. In particular, when closed container with the container lid according to the invention are closed, care should be taken that the area for the discharge opening does not fall into the beverage as a separate component after actuation of the lever tab. In this case, it has proven to be advantageous if this distance range, which prevents the falling-in of the separated area for the dispensing opening, is adjacent to the point at which the first end area or the detent nose of the lever tab attaches for the purpose of initial destruction of the weakening profile.

In particular, when using cover surfaces made of metal, for example light metal, one works regularly on or bulges in the lid surface for the purpose of stiffening the lid structure. Such structures are also known to the person skilled in the art as so-called beads and can be used e.g. be formed straight or curved.

In particular, such container lid according to the invention have proved to be expedient in which, in particular adjacent to the area for the discharge opening, a partially or completely circumferential bead is present on the top of the lid surface. This bead is preferably a bulge extending axially upwards from the upper side of the cover surface.

According to a further embodiment of a container lid according to the invention it is provided that the closure collar has at least one, in particular circumferential, seal, which is on the top of the lid surface, in particular adjacent to the dispensing opening, can be applied or applied. It is particularly advantageous if the seal with the particular peripheral bead sealingly interacts or is sealingly engageable.

In an expedient embodiment, the container lid according to the invention further comprises at least one indentation on the upper side of the lid surface, which in the Öffnerstellung the lever tab at least partial overlap with the second end portion thereof and in particular arranged laterally offset from the line formed in the open position by the second end region and the fastening means. The at least one indentation in the cover surface serves to facilitate reaching under the second end region of the lever lug so as to be able to guide the lever lug upwards in the area of the second end region, whereby the first end region, ie the latching lug against the overlapping area of the delivery opening is pressed. If the second end portion of the lever tab is particularly close to the lid edge, which often extends axially upwardly relative to the lid surface away from the top of the lid surface, little space is left regularly to lift the second end portion of the lever tab. This handling deficit is offset by the provision of said recesses in the lid surface, which are overlapped with the second end portion of the lever tab. In this case, indentations, preferably in a mirror-inverted arrangement, are particularly advantageously applied to different sides of a line which extends from the second end region to the first end region in the opening position. In this embodiment, the opening process made particularly favorable. It has also been found to be particularly advantageous alternatively or in particular additionally to provide finger grip recesses, in particular rounded, openings in the second end region of the lever lug, preferably in a region in which the lever lug with the indentations in the cover surface described above are in the opener position overlaps. As a result, we facilitate the intervention, ie the operation of the lever tab again.

Particular preference is given to those embodiments of the container lid according to the invention, in which the lever tab has a holding element, in particular a holding tongue made of metal, via which or the lever tab, in particular the first end portion of the lever tab, is fastened by means of the fastening means on the lid surface. The retaining element is regularly in the plane of the lever tab or the locking collar of the lever tab. It may preferably be present, at least in parts, during the opening process in a plane which differs from that in which the closure collar is present. While the first end of the retaining element generally faces or is connected to the first end region of the lever tongue, the attachment point for the fastening element with which the lever flap is fastened to the cover surface is generally present at the opposite second end of the lever element.

If it is intended to manufacture the closure collar made of plastic, it has proven to be particularly pragmatic to inject the end region of the lever lug, preferably the closure collar in the region of this first end region, against the holding element, in particular the holding tongue. Here, that end portion of the holding element, in particular the holding tongue, also called the first end of the holding element, which faces the end portion at which the fastening means connects the holding element, in particular the retaining tongue with the lid surface, also called the second end of the holding element, encapsulated with plastic material. The injection molding of metal components or components thereof by means of injection molding is known in the art.

Connection systems for attaching the lever tab to the cover surface by means of a fastening means, such as a rivet, possibly with the inclusion of a holding element, such as a holding tongue or holding strut, as they can be used for the container lid according to the invention are known from the prior art and are found for example, described in the DE 693 02 424 T2 . US 4,148,410 . EP 564 725 A1 . WO 2007/048897 A2 . DE 100 18 685 C2 . US 4,887,712 . DE 89 11 286 U1 and DE 102 61 232 A1 ,

The object underlying the invention is further solved by a container lid according to claim 1. In these containers, any fluids can be included. Suitable fluids include liquids, viscous pourable materials and also particulate bulk materials.

According to the invention there is further provided a sealing construction according to claim 14, comprising an elastic sealing body and, in particular adjacent to this elastic sealing body, a sealing pad with a facing in the direction of the elastic sealing body bead with a ridge and extending therefrom in opposite directions extending shoulders, wherein the elastic sealing body facing the bead, over a first and spaced therefrom a second wedge-shaped elastic web which tapers in the direction of the bead and which respectively face each other at opposite bead shoulders extending from the ridge of the bead, abutment or be brought, and also via a first Dichtungswandung, spaced from the first elastic web opposite to the direction of the second web and a second Dichtungswandung, spaced from the second elastic web opposite to the direction the first ridge, each spaced farther from the ridge of the ridge than the first and second resilient ridges and abutting the seal pad when the resilient ridges abut the bead shoulders.

The present invention was based on the surprising finding that container closures according to the invention are accessible, which for the first time permit a reliable and tight resealing of container systems provided with so-called clip closures, as known from beverage cans. Of particular advantage in connection with the container lids according to the invention is further that, although non-metallic components can be used for their preparation, for example, plastics, which in the container provided with this container lid filled fluid neither during the filling process, nor during an optional pasteurization -, sterilization or other preservation or treatment step, and is not exposed to the subsequent storage or transportation of such plastic materials. In particular, under the usual pasteurization conditions, where temperatures in the range of 50 to 70 ° C and pressures up to 7 bar are used, it is indicated for food hygiene reasons, to any contact with plastic parts that are not adapted to such rigid conditions without. Another advantage associated with the container lids according to the invention represents the great process variability in the completion of fluid-filled containers according to the invention. It is even conceivable that the lever lobes only after the attachment of the container lid according to the invention to the container body filled with fluid on the surface the lid is attached. It has also proven to be particularly practical that the containers obtainable with the container lids according to the invention can readily be set up in such a way that they can be stacked one above the other, that is to say in direct contact with one another. A marketing advantage not negligible advantage is also due to the fact that the resealable opening closure of the container lid according to the invention can be provided in a particularly simple manner with logos or brand names. This opening closure can be made in a separate manufacturing step and then inserted into the lever tab to form the closure module.

Figuren 1 a) bis g)

einen erfindungsgemäßen Gebindedeckel bzw. ein erfindungsgemäßes Gebinde in unterschiedlichen Nutzungsstadien;

Figur 2

einen erfindungsgemäßen Gebindedeckel mit einem verschlossenen Öffnungsverschluss;

Figur 3a) und b)

einen erfindungsgemäßen Gebindedeckel mit geöffnetem Öffnungsverschluss;

Figur 4

eine schematische Draufsicht auf einen erfindungsgemäßen Gebindedeckel ohne Hebellasche;

Figur 5

eine schematische perspektivische Draufsicht auf die Unterseite des Verschlusskragens der Hebellasche;

Figur 6

einen erfindungsgemäßen Gebindedeckel in der Querschnittsansicht;

Figur 7

eine Vergrößerung des Abschnitts A gemäß Figur 6;

Figur 8

eine vergrößerte Darstellung des Abschnitts B gemäß Figur 6 und

Figur 9

eine schematische perspektivische Ansicht einer Ausführungsform einer dritten Arretierungsvorrichtung eines erfindungsgemäßen Gebindedeckels.

Further features and advantages of the invention will become apparent from the following description, are explained in the preferred embodiments of the invention by way of example with reference to schematic drawings. Showing:

FIGS. 1 a) to g)

a container lid according to the invention or a container according to the invention in different stages of use;

FIG. 2

a container lid according to the invention with a closed opening closure;

Figure 3a) and b)

a container lid according to the invention with open aperture closure;

FIG. 4

a schematic plan view of a container lid according to the invention without lever tab;

FIG. 5

a schematic perspective top view of the underside of the locking collar of the lever tab;

FIG. 6

a container lid according to the invention in the cross-sectional view;

FIG. 7

an enlargement of the section A according to FIG. 6 ;

FIG. 8

an enlarged view of the section B according to FIG. 6 and

FIG. 9

a schematic perspective view of an embodiment of a third locking device of a container lid according to the invention.

FIG. 1 a) shows a container according to the invention 1 with a container lid 2 according to the invention and a container or container 4. The container lid 2 has a peripheral edge 6, which is fluid-tight manner via a rabbet joint 8 with the container 4. The container lid 2 is also equipped with a lid surface 10 in which there is an area 12 for a dispensing opening. The container lid 2 moreover has a lever tab 14 with a first end region 16 in the form of a latching nose and an opposite second end region 18. The area for the dispensing opening 12 is delimited by a weakening profile 20 FIG. 1a ) reproduced embodiment, the can lid 10 and the area 12 for the discharge opening made of a light metal, for example aluminum, made. For the mechanical reinforcement of the area 12 received Cover surface is provided therein a circumferential bead 22. To reinforce the dispensing opening, a circumferential bead 25 is provided adjacent to the area 12. The lever tab 14 lies in the in FIG. 1a ) reproduced embodiment in the so-called Öffnerstellung. That is, the first end portion and the detent 16 is in partial overlap with the area 12 for the discharge opening. The lever tab 14 is connected via a fastening means 24 in the form of a rivet to the lid surface 10. This connection is achieved via a holding tongue or strut 26 which extends from the fastening means 24 in the direction of the area 12 for the dispensing opening and opens into the first end area 16.

By raising the second end region 18 of the lever lug 14 in the opener position, the first end region or latching lug 16 is pressed against the overlapping region of the discharge opening area 12. Due to the recesses 28 and 30 provided in the cover surface 10, the second end region 18 can be grasped and lifted particularly comfortably even with container covers with a very small diameter (see FIG Figures 1b ) and 1c )). At the in FIG. 1 reproduced embodiment of a container lid 2 according to the invention, in which the second end portion 18 of the lever tongue 14 comes very close to the edge 6, the user is by the positioning of the indentations 28 and 30 in the lid surface 10 laterally in the Öffnerstellung by the first and second End portion 16, 18 spanned axis (see dashed line in Fig. 1a )) has been properly imposed on proper use. If the lever lug 14 is in a position rotated to the opener position, as a rule it is no longer possible to reach underneath the lever lug in the region of the second end region 18. The handling of the lever lobe 14 on the second end region 18 is facilitated in the illustrated embodiment by in that gripping recesses 19 and 21 are provided which, when the lever lug is in the open position, correspond to the position of the indentations 28 and 30, ie the gripper recess 19 lies above the indentation 28 and the gripper recess 21 lies above the indentation 30. In this way In particular with container covers with a small diameter or with such container lids, in which the second end region comes very close to the edge 6, a trouble lifting the lever tab on the second end portion 18 allows. By lifting the lever tab, as in the Figures 1b ), the weakening profile 20 is first destroyed only in one place. Upon further depression of the lever tab 14 up to the in Figure 1c ), the weakening profile 20 is almost completely torn or destroyed. Due to the interaction with the first end region 16, the separated area for the dispensing opening into the container interior pushed. The fact that the attenuation profile is not designed to be completely circumferential, but a distance range (see also reference numeral 52 in FIG Fig. 4 ), which does not require a weakening profile, it is possible to prevent this lid segment from falling into the interior of the container (details on this are also given below) FIG. 5 given).

After release of the area 12 for the dispensing opening, the lever tab 14 can be pushed back to the original horizontal orientation, as in Figure 1d ). Subsequently, the lever tab 14 can be moved over by a rotation through 180 ° in the plane of the lid surface 10 in the closed position (see Figure 1e )). The second end portion 18 is then above the discharge opening 12 before (see FIG. 1f )).

In the region of the second end region 18, the lever lug 14 has a closure module 36, comprising a substantially peripheral closure collar 32 and an opening closure 34. The reversibly operable opening closure 34 is present in the closure collar in the variant shown. The closure collar 32 is configured on the side facing the upper side of the lid surface 10 in such a way that the closure module 36 enclosing the closure collar 32 and the opening closure 34 can be pressed sealingly into the dispensing opening, such as Figure 1g ) shows.

FIG. 2 shows a representation of the container lid 2 according to the invention. The closure module 36, comprising the closure collar 32 and the opening closure 34, is present in the dispensing opening 12. The reversibly operable dispensing opening 34 in the form of a hinged lid is connected via a hinge 38 with the lever tab 14 and the locking collar 32. FIG. 2 The stop points 42 and 44 prevent rotation of the lever tab 14 beyond an angle of 180 ° and facilitate the correct adjustment of the closure module 36 in the closed position on the discharge opening 12th The attachment points 46 and 48 are responsible for ensuring that the lever tab 14 only in one direction of rotation (indicated by the arrow in FIG FIG. 2 ) can be transferred from the Öffnerstellung in the closed position.

FIGS. 3a ) and b) show a container lid 2 according to the invention, in which the opening closure 34 is in the open position. The opening closure 34 can over the in FIG. 3a ) shown position even further to the rear, that is, in the direction of the indentations 28 and 30 are folded as in Fig. 3b ). Preferably, the opening closure 34 is opened by suitable latching or locking possibilities in this unfolded Position kept reversible. In this way, a particularly trouble-free drinking of liquid from the in FIG. 3 illustrated container. The opening closure 34 may, as in FIG. 3a ), are used again for closing the container lid 2. In order to obtain a particularly tight closure, the peripheral edge 35 of the opening closure 34 is sealingly engageable with the inner edge 37 of the closure collar 32. Suitable latching or snap or clamp connections are familiar to the person skilled in the art.

FIG. 4 takes a schematic plan view of a container lid 2 according to the invention, but without lever tab. In the center of the lid surface 10 is the fastening means 24 for the lever tab (not shown). The area 12 for the discharge opening has circumferentially and adjacent to the weakening profile 20 on an upwardly curved peripheral bead 22, which serves to reinforce the area 12 spanned by the area. Also adjacent to the weakening profile 20 adjacent to the area 12 in the top surface 10 is a circumferential convex bead 50 before. How to get the FIG. 4 takes, the attenuation profile 20 is not designed completely encircling. Rather, laterally offset from the axis AA, there is a spacing region 52. Adjacent to this spacing region 52, upon actuation of the lever lug 14, the first end region or detent lug 16, which is in the closed position in overlapping sections with the area 12 for the dispensing opening, engages Area 12. By pressing the lever tab 14, the first end portion 16 against the area 12, the weakening profile 20 ruptures, so that upon further actuation of the lever tab, the entire area 12 is pressed into the container interior. The distance range 52 ensures that this area is not completely separated and can fall into the container interior. Rather, it is inside the container than inwardly folded lid surface segment.

FIG. 5 shows a schematic representation of a component of the lever tab 14 with the locking collar 32 as part of the closure module 36. The opening closure 34 and the retaining tongue are not shown for reasons of clarity. In FIG. 5 If you look at that side of the lever tab 14, which faces the top of the lid surface 10 in generic use. The closure collar 32 is provided on this side with a circumferential seal 54. The closure collar 32 extends in the illustrated variant into the first end region 16 and also serves to stiffen the lever tab. At this end portion 16, the retaining tongue or the holding element engages (not shown), which makes the attachment to the lid surface with the fastening means (not shown).

Out FIG. 6 is a cross-sectional view of a container lid according to the invention. The closure collar 32 of the closure module 36 is inserted into the dispensing opening 12 via detent teeth 56 as part of the third detent 55. The circumferential seal 54 on the underside of the closure collar 32 comes to rest on the peripheral bead 50 in a sealing manner. In the closure collar 32 of the opening closure 34 is embedded. FIG. 6 also takes the edge of the lid surface 2 forming fold 8 also goes out Fig. 6 the connection of the lever tab 14 via the fastening means 24 in the lid surface 10 forth. The fastener 54 used in the in Fig. 6 embodiment shown is a rivet rotatably supports the holding member 26, the first end 27 is overmolded with the plastic material of the first end portion 16 of the lever tongue 14. As Fig. 6 shows, in the illustrated embodiment, the locking collar 32 is connected only in the region of the first end portion 16 with the holding element.

FIG. 7 shows an enlargement of the detail A from FIG. 6 , The seal 54, which interacts with the bead 50, is configured with two wedge-shaped elastic webs 58, 60 which engage on opposite sides of the bead back. In addition, the seal 54 has adjacent and spaced from these sealing webs present sealing walls 62, 64, which are in contact with the top of the lid surface 18. With the in FIG. 7 The engagement of the snap hooks 56 below the peripheral edge of the discharge opening 12 is in this case adjusted so that in the locked or locked state, both the sealing webs 58 and 60 and the Seal wall elements 62 and 64 circumferentially pressed against the top of the lid surface 10. This seal contributes not insignificantly to a resealable container closure in the context of the present invention, which effectively prevents the escape of gases from an already opened container, for example carbon dioxide.

Fig. 8 If one takes an enlarged schematic sectional view of the section B according to Fig. 6 , Adjacent to the edge 11 of the lid surface 10, which delimits the dispensing area or the dispensing opening 12, the circumferential surface 50 extends in the lid surface, which extends axially away from the upper side of the lid surface 10. The closure module 36 is irreversibly connected to the cover surface 10 via ratchet teeth 56. The ratchet teeth 56 of the third Locking device 55 have been pushed into the discharge opening 12 in the closed position. This succeeds particularly well that 56 provided on the surface facing the lid edge surface of the ratchet surfaces 59. These beveled surfaces are pressed against the edge 11 when the closure module 36 is pressed into the dispensing opening 12. It is advantageous if the ratchet teeth 56 and the third locking device 55 are formed from relatively rigid, but nevertheless always resilient material. Suitable plastic materials having these properties are known in the art. The third locking device 55 may have, for example, two, three, four, five or more locking teeth 56 circumferentially along the edge 11 of the dispensing opening 12. In particular, if only a few ratchet teeth are used, for example two, three or four, it is advantageous if they are approximately equidistant from one another and preferably not only selectively cover the lid surface 10, but are made wider. Alternatively, it is also possible, as in Fig. 9 shown to configure the third locking device 55 circumferentially, so that locking teeth 56 along the entire circumference of the discharge opening 12, the lid opening 10 along the edge 11 under grasp or under reach. Once the edge 56 is engaged with the projection 61 under the lid surface 10 at the opening edge 11, the closure module 36 is sealingly engaged in the discharge opening 12 before. The sealing enclosure of the closure module 36 via the circumferential seal 54, which interacts with the top of the lid surface 10, is already closed Fig. 7 has been described in detail. Of the Fig. 8 Furthermore, a reclosable opening closure 34, which is embedded in the closure collar 32, is sealingly provided on the inner wall of the closure collar 32, for example via the circumferential beads 63 and 65.

Fig. 9 shows a schematic perspective plan view of an embodiment of the third locking device 55, which is configured circumferentially and forms a part of the closure collar 32 (not shown). This third locking device 55 has circumferentially over a total of eight ratchet teeth 56. The ratchet teeth are provided with a rounded contact surface 59 and a latching projection 61 which engages under the lid surface 10 at the edge 11 thereof (not shown) equipped. The respective ratchet teeth are made relatively wide in the illustrated variant and separated only by narrow incisions 67 from each other.

The features of the invention disclosed in the foregoing description, in the claims and in the drawings can be used individually as well as in any combination be essential for the realization of the invention in its various embodiments.

Claims (15)

1. A re-closable container lid (2) comprising a lid surface (10) with an upper and a lower side and with a surrounding edge (6) and with a region (12) for a discharge opening, limited by at least one fully or partially surrounding tear profile (20) characterized by
   at least one bead (25) which partially or fully surrounds the region (12) for the discharge opening, which is in particular adjacent, on the upper side of the lid surface (10); a lever bracket (14) which is rotatably attached via an attachment means (24) to the lid surface (10) for the at least partial opening of the region (12) to form the discharge opening with a first end section (16) and an opposite second end section (18), wherein the first end section (16) is present or can be brought in the opener position at least partially in overlap with a portion of the region (12) for the discharge opening, and wherein the second end section (18) is present on the other side of the attachment means (24) in relation to the first end section (16);
   wherein the lever bracket (14) comprises a locking module (36) on or adjacent to the second end section (18), which comprises a locking collar (32) which is in contact or can be brought into contact with the upper side of the lid surface (10) and which surrounds the discharge opening in the locking position when it is in contact with the upper side of the lid surface (10), in particular in the form of a seal, and in particular surrounded by the locking collar (32) comprises a re-closable opening lock (34);
   wherein the locking collar (32) comprises at least one, in particular surrounding, seal (54) which can be brought into contact or is in contact with the upper side of the lid surface (10), in particular adjacent to the discharge opening, and which interacts with the bead (25) to form a seal or can be made to interact to form a seal; and wherein said seal or seal construction (54) comprises an elastic seal body and, in particular in contact with this elastic seal body, a seal underlay with a bead (50) which faces in the direction of the elastic seal body with a ridge and shoulders which extend from this in opposite directions, wherein the elastic sealing body, facing the bead (50), has a first and, at a distance from this, a second wedge-shaped elastic rib (58, 60) which taper in the direction of the bead (50) and which are in contact with each other and/or can be brought into contact with each other respectively on opposite bead shoulders which extend away from the ridge of the bead (50), and further a first seal wall (62) which is at a distance from the first elastic rib (58) in the opposite direction of the second rib (60) and a second seal wall (64) which is at a distance from the second elastic rib (60) in the opposite direction to the first rib (58), which are respectively at a further distance from the ridge of the bead (50) than the first or second elastic rib (58, 60) and which are in contact with the seal underlay when the elastic ribs (58, 60) are in contact with the bead shoulders.
2. The container lid (2) according to claim 1, characterized in that the locking module (36) or the locking collar (32) comprises a third arresting device (55) on the side facing towards the upper side of the lid surface (10) so that by actuating the arresting device (55), the locking module (36) is connectable or connected, in particular in an irreversible manner, to the discharge opening, wherein the locking collar (32) is partially or fully in contact under pre-stress with the upper side of the lid surface (10).
3. The container lid (2) according to claim 1 or 2, characterized in that said container is a beverage can lid.
4. The container lid (2) according to any one of the preceding claims, characterized in that the surrounding edge (6) of the lid surface (10) comprises a flange.
5. The container lid (2) according to any one of the preceding claims, characterized in that the region (12) for the discharge opening is a notched metal sheet, and that the tear profile (20) is a notched profile.
6. The container lid (2) according to any one of the preceding claims, characterized in that the tear profile (20) surrounds the region (12) for the discharge opening up to a distance range (52), in particular adjacent to the first end section (16) in the opening position and offset to the side in relation to the line formed by the attachment means (24) and the first end section (16) in the opening position.
7. The container lid (2) according to any one of the preceding claims, characterized in that the attachment means (24) is present in the area of the centre of the lid surface (10) and/or is a rivet.
8. The container lid (2) according to any one of the preceding claims, characterized in that the region (12) for the discharge opening is at a distance from the attachment means (24) and in particular is adjacent to the edge (6) of the lid surface.
9. The container lid (2) according to any one of the preceding claims, characterized in that the re-closable opening lock (34) comprises a lid plate which is connected or connectable via an integrated hinge or a hinge (38) to the locking collar (32).
10. The container lid (2) according to any one of the preceding claims, further comprising at least one recess (28, 30) on the upper side of the lid surface (10) which in the opening position of the lever bracket (14) has at least a partial overlap with the second end section (18) of the latter, in particular is offset to the side in relation to the line formed in the opening position by the second end section (18) and the attachment means (24).
11. The container lid (2) according to any one of the preceding claims, characterized in that the lever bracket (14) comprises a holding element (26), in particular a holding tongue, via which the first end section (16) of the lever bracket (14) is attached by the attachment means (24) to the lid surface (10).
12. A re-closable container (1) comprising a container body (4) and a container lid (2) according to any one of the preceding claims which is connected in a fluid-sealed manner with said body.
13. The container (1) according to claim 12, characterized in that said container is a beverage can.
14. A seal construction (54) for a re-closable container lid, comprising an elastic seal body and, in particular in contact with this elastic seal body, a seal underlay with a bead (50) which faces in the direction of the elastic seal body with a ridge and shoulders which extend from this in opposite directions, wherein the elastic seal body, facing the bead (50), has a first and, at a distance from this, a second wedge-shaped elastic rib (58, 60) which taper in the direction of the bead (50) and which are in contact with each other and/or can be brought into contact with each other respectively on opposite bead shoulders which extend away from the ridge of the bead (50), and further a first seal wall (62) which is at a distance from the first elastic rib (58) in the opposite direction of the second rib (60) and a second seal wall (64) which is at a distance from the second elastic rib (60) in the opposite direction to the first rib (58), which are respectively at a further distance from the ridge of the bead (50) than the first or second elastic rib (58, 60) and which are in contact with the seal underlay when the elastic ribs (58, 60) are in contact with the bead shoulders.
15. The use of the seal construction according to claim 14 for re-closable container lids.

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