WO2010051788A1

WO2010051788A1 - Device for opening and closing a beverage container

Info

Publication number: WO2010051788A1
Application number: PCT/DE2009/001445
Authority: WO
Inventors: Friedhelm Nebel
Original assignee: 4Pack Gmbh
Priority date: 2008-11-07
Filing date: 2009-10-16
Publication date: 2010-05-14
Also published as: DE102009024735A1

Abstract

The invention relates to a closing and opening device (4) for a beverage container (1), comprising a fastening section (19) for fastening to the open end (2) of the beverage container (1) and a lid (6) by which the device (4) can be opened and closed by applying a pressure force onto the same, wherein by applying a first pressure force (F1) from outside onto a central region of the lid (6) the device (4) opens, and by applying a second pressure force (F2) from outside on the radial edge of the lid (6) the device (4) closes. In order to be able to achieve a fully sealed closure of said device prior to the first time the closing and opening device (4) is opened, additionally a protective film (33) is designed or attached in a gas- and fluid-tight manner on the closing and opening device (4), which is arranged such that it is destroyed the first time a force (F1) is applied onto the lid (6) for opening said device.

Description

Device for opening and closing a beverage container

The invention relates to a closing and opening device for opening and closing a beverage container according to the preamble of claim 1.

Such a generic closure and opening device is known from DE 10 2005 015 505 A1. Compared to otherwise conventional devices for opening and closing a beverage container that can be operated only using both hands of a user, this type of closing and opening device allows its operation with only one hand and with a relatively small amount of force. The special feature of this closure is its lid, which can reversibly change its geometry. Thus, the lid in the closed state has the geometry of a spherical section. By the action of a force exerted, for example, by a finger on the center of the ball portion, the cover can be deformed to the extent that this dent inwards and at the edge at least one opening for removal of the liquid from the container releases. A subsequent action of a second force on the edge of the lid leads to a reverse deformation of the same in its initial geometry, in which the lid again closes and seals the liquid container. The described operation is achieved in this known closing and opening device by a arranged below the cover multi-armed support and spring structure which is connected to the lid and supports it in its deformation.

DE 10 2007 035 728 A1 further developments of this closing and opening device are known, which relate to the attachment of the same to a beverage can, the formation of a pouring or drinking section and an improved seal. The improved sealing is achieved by elastic locking means on the cover element and in conjunction therewith. achieved menwirkende elastic locking means on the base part of the closing and opening device, which connect the cover member and the base member under the action of the two forces mentioned together or can release again. In addition, the lid member has axially and radially aligned sealing lips which rest in the closed state of the closing and opening device sealingly on the base part. This closing and opening device prevents in its closed position even after a first opening the same safe that unwanted objects or animals can penetrate into the still partially filled with the drink beverage container, whereby the use value of such a beverage container is greatly increased compared to conventional beverage cans.

While these known closure and opening devices have a number of advantages, they are not readily adapted to contain carbonated liquids such as mineral water or beer sufficiently tightly in the beverage container. This is because such liquids constantly emit carbon dioxide, which builds up in the beverage container overpressure relative to the pressure of the ambient air. This overpressure raises the lid, so that disadvantageously at least the carbon dioxide can escape. In addition, it has been shown that the generic type closing and opening device is axially comparatively large, even in the closed state, ie increases the length of the beverage container, which is considered disadvantageous.

Against this background, the invention has the object, a generically designed closing and opening device for beverage containers educate so that it is completely gas-tight and liquid-tight in the closed state and after their initial opening. However, the attachment of this closing and opening device on the beverage container should be designed so that it is gas-tight and liquid-tight at each actuation state. The solution of this problem arises from the features of the main claim, while advantageous developments and refinements of the invention are the dependent claims.

The invention is based on the finding that the closing and opening devices known from DE 10 2005 015 505 A1 and DE 10 2007 035 728 A1 must be equipped with additional gas-tight and liquid-tight sealing means in order to achieve improved tightness. In this case, much higher requirements are directed to the tightness before the first opening of the device than to the sealing properties after the initial opening of the same. To comply with a predetermined maximum length of a beverage container, including closing and opening device according to the invention, the arranged below the cover multi-armed support and spring structure is changed in their construction.

The invention is therefore based on a closure and opening device for a beverage container having a fastening portion for attachment to the open end of the beverage container and a lid, with which the device can be opened and closed by exerting a compressive force on the same, by exercising a first pressing force F1 from the outside to a central region of the lid opens the device and closes by the exertion of a second compressive force F2 from the outside to the radial edge of the lid, the device in which the attachment portion and the lid with a multi-arm, elastic support and spring structure are connected, which is arranged radially inside the mounting portion and axially below the lid, and that sealing means are present on the closing and opening device, which seal the same in the closed state.

In order to achieve a fully sealed closure of the same before the first opening of the closing and opening device, it is additionally provided that axially below the support and spring structure, ie away from the lid, a protective film on the closing and opening device is gas- or liquid-tight formed or attached, which is arranged such that these at a first time exercise of a force acting on the lid F1 to open the same components of the support and spring structure or is destroyed by a separate, connected to the support structure and spring separation device.

The integration of a protective film in the closing and opening device allows notwithstanding the previously known generic devices that such equipped beverage containers can now also accept carbonated drinks without having to be expected before the first use with a leakage of carbon dioxide or the drink. The closing and opening device according to the invention is therefore ideal for beverage cans made of metal or plastic, in which, for example, mineral water, lemonade or beer should be kept. After the first opening of the closing and opening device to the beverage container, this can be closed again with the known closing mechanism so far that a liquid and gas outlet is at least greatly inhibited. In any case, this closing and opening device prevents the unwanted intrusion of animals or foreign matter into the beverage container.

The inventive design or coupling of the support and spring structure of the closing and opening device with a separator that automatically destroys the protective film when first pressed the same that the drink can be removed from the beverage container allows a very practical use of the same.

In a further development of the closing and opening device according to the features of the main claim is provided that by the fixing portion and the multi-arm, elastic support and spring structure of the closing and opening device referred to as a cover base component is formed, which has on its cover remote and therefore close to the drink side the protective film, and to which the lid is fastened. The production of the lid in a separate manufacturing process appears to be appropriate because of the comparatively complicated structure of the lid base, but it is also possible to produce the lid together with the lid base in a plastic injection molding process in a common tool, the lid base and the lid over a plastic -Filmschamier are initially connected to each other captive, but separated from each other for their final assembly at this point and are connected to one another for the later functions meaningful other place again.

With regard to the separating device can also be provided that it is connected to the radially inner ends of the arms of the support and spring structure and therefore arranged in the center of the closing and opening device.

The separating device has in a preferred embodiment of individual, knife-like cutting, which are arranged aligned in the direction of the protective film. Although these cutting the separator consist of relatively thin plastic parts, these are due to the small thickness of the protective film and the need for a single use very well suited for destroying the protective film.

In an advantageous embodiment of the closing and opening device is also provided that the cutting of the separation device in the center of the lid base are connected to each other by means of a preferably round connector, on which the lid is fastened. Through this combination of separation device and cover is also advantageously achieved that the cover located in the closed position is curved so that it can easily lift the cutting of the separator and keep safe from the first use of the protective film. In this context, according to another embodiment of the invention, it is provided that the said connecting piece, on which the cutting edges of the separating device are fastened, has a receiving opening on its side facing the cover, into which a pin protruding axially from the center of the lid can be inserted or removed in a captive manner. is latched.

The pin on the lid preferably has a blind hole centrally or coaxially with respect to its longitudinal axis, so that its deformability with respect to the Einfäddeins is improved in the receiving opening of the connector of the lid base compared to a solid design of the pin.

Further, it is preferably provided in this context that the receiving opening is cup-shaped on the connecting piece and has on its inner wall an annular groove into which an annular web of the pin can be latched. By this construction, a mechanically very strong connection between the lid and lid base can be achieved.

In order to destroy the protective film which prevents outgassing of carbonic acid prior to the first use of the beverage container with a structurally very simple and therefore inexpensive to produce means when first used safely, is provided according to an embodiment that the connecting piece is formed thorn-shaped. The connector has, for example, a conical outer geometry, which tapers towards the undestroyed protective film. This outer geometry of the connector allows piercing the protective film when an opening force F1 acts on the center of the lid, without the need for the above-mentioned cutting a separate cutting tool.

With regard to the detailed construction of the lid base, it is judged to be advantageous if, viewed radially inwardly following the fastening section, it has a flat circular collar and, subsequently, first locking means which engage with second locking means. Opening means on the lid by the action of the force acting centrally on the lid opening F1 and acting upon the action of the radially acting on the outside of the lid force F2 closing cooperates in one sense Klips connection.

For radially inwardly effective stiffening of the lid base is provided that this has integrally formed on the collar support arms which extend radially inwardly and are connected to segments of a support ring which surrounds the separator in compliance with a radial distance circular. This support ring then serves the cover as an abutment and path limitation when it is pressed in an opening operation under the action of the force F1 with its central region axially towards the protective film or to the bottom of the beverage container.

Preferably, it is provided for holding this segmented support ring, that in each case two support arms are arranged adjacent to an arm of the support and spring structure on the lid base. In addition, it is provided in this design that in each case a further support arm is arranged directly between each two groups of two of those support arms which receive between each one arm of the support and spring structure. Preferably, three of said support arms each carry a segment of the support ring. The arms of the support and spring structure extend radially from the said flat circular collar between each two segments of the support ring through to the connector, which as described above also serves to hold the lid.

According to a further embodiment of the invention, it is provided that the protective film, which closes the beverage container before its first use gas and liquid-tight, consists of a metal and is glued to the lid base on the lid-side. The protective film may also be coated on its side facing the beverage with a plastic coating. According to another variant it can be provided that the protective film as well as the other components of the lid base consists of a plastic and is manufactured with this in a manufacturing process or in a separate manufacturing process.

To reduce the manufacturing costs of the closing and opening device according to the invention can be provided with a reduced functional scope (no support ring as a central abutment for the lid) that the arms of the support and spring structure itself are designed as a separator for destroying the protective film. In this construction, the costs for the production of an injection mold in comparison to the previously described designs can be reduced. In order to destroy safely with the arms of the support and spring structure, the protective film at a first opening operation of the closing and opening device, the arms of the support and spring structure on the side facing the protective film have sharp release agent or sections.

In a further development of the closing and opening device according to the invention it can be provided that the lid base can be connected directly to the beverage container. This can be realized in that the attachment portion of the lid base for connecting the same with the open end of the beverage container as a gas and liquid-tight thread, snap closure, flanging or gluing is formed.

According to another variant it can be provided that the lid base is not formed directly connected to the wall of the beverage container connectable, but that the lid base is formed in a central opening of a separate lid of the beverage container liquid and gas-tight used. This separate lid may be made of a metal or a plastic. In any case, it is judged to be advantageous if the attachment portion of the lid base is formed so that it is solvable only from the beverage container with great force, so that abuse can be safely avoided.

With regard to the arms of the supporting and spring structure, it should be noted that these each have at least one fold wrapped in the axial direction of the closing and opening device. This at least one fold allows for the elastic properties of the material of the arms of the support and spring structure that they undergo a deformation of an opening operation of the lid to build up a restoring force, and that these arms give this restoring force to the lid again when this in the closing direction is pressed.

In order to optimize the spring properties of the arms of the support and spring structure can be provided according to a particular embodiment of the invention that these arms are formed narrowing from radially outward to radially inward.

Advantageously, it is provided that the arms of the supporting and spring structure are connected radially outwardly with a circular stiffening portion which has on its side facing the lid an axially outwardly facing annular abutment portion.

Furthermore, it can be provided in this exemplary embodiment that the cover has web-shaped centering elements which are arranged in an annular manner on its inner side and which cooperate with the annular abutment section on the cover base. The abutment portion limited at a pressure on the center of the lid whose free mobility axially downwards and also allows the reversible forming process of the lid, in which the edge of the lid lifts from its closed position and enters its open position. In addition, it can be provided that the cover has radially outward on its axial inner side a latching hook, which engages behind a closure collar formed on the lid base for closing the closing and opening device. For this purpose, an annular groove is preferably formed on the lid base, which covers the locking collar of the lid base radially partially. The latching hook may be formed in one piece or segmented, in the latter case, the segments of the latching hook follow a circular line.

Finally, it can be provided for further stiffening the Deckenibais that on the lid base axially below the annular groove an annular stiffening portion is formed.

The statements make it clear that the use of the closure and opening device according to the invention in beverage cans or beverage bottles made of glass, a light metal or a plastic is to be assessed as extremely advantageous.

Reference to an accompanying drawing, an embodiment of a closing and opening device according to the invention will be explained below. In this shows

1 is a schematic cross-sectional sectional view through an upper portion of a beverage container and a closure and opening device attached thereto with a lid base and a lid attached thereto,

2 is a perspective view of the underside of the lid base of FIG. 1,

3 is a perspective view of the underside of the lid of FIG. 1, 4 shows a schematic plan view of a lid base according to a further embodiment,

Fig. 5 is a schematic cross-sectional sectional view through the lid base of FIG. 4 at the point A-A and by a lid attached thereto, and

Fig. 6 is a schematic cross-sectional sectional view through a lid base similar to Fig. 5 and by a lid attached thereto.

Accordingly, Fig. 1 shows the upper end of a formed as a can beverage container 1, to which a closing and opening device 4 is attached according to the invention. This closing and opening device 4 is made in two parts, namely in the form of the lid 6 and the lid base 7. Before the closing and opening device 4 is attached to the upper end 2 of the beverage container 1, the lid 6 with its centrally located pin 8 in a cup-shaped receiving opening 34 in a connector 22 of the lid base 7 captively clipped. This will be discussed in more detail below.

The structural design of the lid 6 and the lid base 7 can be seen in detail in Figures 2 and 3. The cover 6 is made of a flexible plastic and is circular. While its axially outwardly facing surface is largely smooth, on the opposite side of the centrally disposed pin 8 and six web-like first locking means 10 are arranged in a circle. These first locking means 10 have at their free end in each case a thickening 24 which can be engaged and disengaged into a second locking means 9 formed as a circular pocket on the lid base 7, which is shown in the right half of FIG. In Fig. 2, the circular shape of the bottom 23 of the second locking means 9 is clearly visible. The first and second locking means 9, 10 are out of order Engage when the lid 6 has been actuated in the opening direction, and they are engaged when the lid 6 is in itself in its closed position.

The cover 6 has at its radially outer end a radially aligned sealing lip 12, which conforms in the closed position of the lid 6 to the outside of the lid base 7. It seals, after the closing and opening device 4 was first opened, the beverage container 1 at least against the unwanted Endringen of foreign substances or animals. This sealing effect is reinforced by an axially aligned, circular sealing lip 11, which is arranged radially between the first-mentioned sealing lip 12 and the first locking means 10 on the cover 6. Both sealing lips 11, 12 are also able to largely inhibit outgassing of carbon dioxide from the beverage container located in the beverage for many minutes, so that after a first opening of the closing and opening device 4, the carbonated beverage is relatively long edible.

The lid base 7 is also substantially circular in shape and has at its radially outer end an axially aligned mounting portion 19 which is gas- and liquid-tightly connected to the upper end 2 of the beverage container 1. In the embodiment shown in Fig. 1, the lid base 7 and the beverage container 1 are screwed together, with an external thread 3 of the beverage container 1 and an internal thread 5 of the lid base 7 engage with each other. A sealing means 18 arranged between the external thread 3 of the beverage container 1 and the internal thread 5 of the lid base 7 assists or permits the desired gas-tight and liquid-tight sealing in the region of this connection point.

Viewed from radially outside to radially inward, an annular collar 21 adjoins the attachment section 19, from which three arms 14, 15, 16 of a support and spring structure 13 for the cover 6 extend radially inward in this exemplary embodiment. These arms 14, 15, 16 are Because of their flat, band-shaped geometry and their folding in the longitudinal direction intended and suitable to hold the cover 6 resilient. The embodiment according to FIG. 2 shows that the arms 14, 15, 16 of the supporting and spring structure 13 each have two folds 17 looped in the axial direction of the closing and opening device 4.

Further, extending from the collar 21, a plurality of rigid support arms 28, 29, 30 radially inwardly on the cover base 7, wherein in the embodiment shown in FIG. 2 each two support arms 28, 29 an arm 14, 15, 16 of the support - And spring structure 13 place between them. Between each two such groups of support arms 28, 29 each have a further support arm 30 is arranged. These support arms 28, 29, 30, in comparison to the arms 14, 15, 16 of the supporting and spring structure 13, have a rather carrier-shaped geometry, i. they are rather narrow in the circumferential direction of the lid base 7 and comparatively high in the direction of the cover 6.

The carrier-shaped support arms 28, 29, 30 are radially inwardly connected to a segmented support ring 20, wherein in each case three of the support arms 28, 29, 30 are connected to a segment 25, 26, 27. The individual segments 25, 26, 27 are separated from one another by the radially inwardly pointing arms 14, 15, 16 of the supporting and spring structure 13. The support ring 20 serves as an abutment and Wegbegrenzer for the cover 6 when it is pressed axially in an opening movement by engaging a force F1 on the center thereof down.

As shown particularly in FIG. 1, a protective film 33 is formed on the cover-remote side of the lid base 7, or fastened there in a gas-tight and liquid-tight manner. This protective film 33 makes it possible that, prior to the first actuation of the closing and opening device 4, neither a gas under overpressure nor the liquid present in the beverage container 1 can escape from it. To destroy this protective film 33 is a separator 31 which is integrated in the lid base 7. As shown particularly in FIG. 2, the separating device 31 in this exemplary embodiment consists of three cutting edges 32 whose sharp-edged sides point in the direction of the protective film 33. The cutting edges 32 of the separating device 31 are connected to a connecting piece 22 arranged in the center of the lid base 7 and are arranged to be axially movable radially within the supporting ring 20. For this purpose, the cutting edges 32 maintain a radial distance to the radial inner side of the support ring segments 25, 26, 27.

For this purpose, the connector 22 on its side facing the lid 6 a receiving opening 34 in the form of a bore or a blind hole, in which the axially from the center of the lid 6 protruding pin 8 can be latched (see Fig. 1 and Fig. 3).

Fig. 1 also indicates a differently designed separating device, in which no separate cutting edges are formed on the lid base 7. In this embodiment, the arms 14, 15, 16 of the support and spring structure 13 even on their side facing the protective film 33 sharp and / or sharp release agent 35, which destroy the protective film 33 at a first opening operation of the closing and opening device 4. The separated protective film 33 'is shown in Fig. 1 by two dotted lines.

FIGS. 4 to 6 show a closure and opening device consisting of a cover and cover and features of the other exemplary embodiments of the invention.

Thus, FIG. 4 shows a schematic plan view of a cover base 57 or 59, which are shown in cross-sectional view along the section line AA in FIGS. 5 and 6 together with the associated cover 56 or 58. The cover base 57, 59 accordingly has a flat, annular collar 21 on the radially outward side, to which an annular groove 43 extends radially inward. closes. This annular groove 43 is partially covered by a detent collar 53, 55 so far radially, so that a radially outwardly on the lid 56, 58 formed and axially projecting latching hooks 51, 54 engage in the annular groove 43 and the locking collar 53, 55 can engage. The latching hook 51, 54 is circular. He may be formed in one piece or segmented.

For stiffening the Deckenibais 57, 59 outside the support and spring structure 13 is also provided that on the lid base 57, 59 axially below the annular groove 43, an annular stiffening portion 52 is formed, which points axially towards the interior of the beverage container 1.

The pin 8 on the lid 56, 58 preferably has centrally or coaxially a blind hole 47, so that its deformability in terms of Einfädeins in the receiving opening 49 of the connector 22 of the lid base 57, 59 is improved compared to a solid design of the pin.

Further, it is preferably provided in this context that the receiving opening 49 is cup-shaped on the connecting piece 22 and on its inner wall has an annular groove 50 into which an annular web 48 of the pin 8 can be latched. By this construction, a mechanically very strong connection between the cover 56, 58 and lid base 57, 59 can be achieved.

In order to safely destroy the protective film 33, which prevents outgassing of carbonic acid prior to the first use of the beverage container with a structurally very simple and therefore inexpensive to produce means upon first use, is provided according to an embodiment that the connecting piece 22 has an outer geometry 37 , which is in the direction of undecorated protective film 33 like a spike, so tapered, formed. This external geometry 37 of the connector 22 allows for puncture of the protective film 33 when an opening force F1 acts on the center of the lid 56, 58, even without separately formed cutters or separators. In order to optimize the spring properties of the arms 40, 41, 42 of the supporting and spring structure 13, it can be provided, as shown in FIG. 4, that these arms 40, 41, 42 are made narrower from the radially outward to the radially inward direction.

Furthermore, FIGS. 5 and 6 show that the arms 40, 41, 42 of the supporting and spring structure 13 are connected radially on the outside with a circular stiffening section 45, which has an annular abutment section 44 on its side facing the cover 56, 58. While in the direction of the interior of the beverage container 1 facing stiffening portion 45 stiffened the Deckenibais 57, 59 outside the support and spring structure 13, the annular abutment portion 44 serves directly for supporting the lid 56, 58, when this from its closed position to its open position or is brought from its open position to its closed position.

For storage of the lid 56, 58 during its forming or during an actuation process also formed on the axial inside of the lid 56, 58, annularly arranged web-shaped centering 46, which cooperate with the annular abutment portion 44 of the Deckenibais 57, 59 as described.

reference numeral

Beverage container Upper end of beverage container External thread of beverage container Closing and opening device Internal thread of closing and opening device Lid Lid base Pin on lid Locking means on lid base Latching means on lid Sealant, Axial sealing lip Sealant, Radial sealing lip Support and spring structure Arm of support and spring structure Arm of Support and spring structure Arm of the support and spring structure Fold on the arm 14, 15, 16 Sealant Attachment section of the cover base Support ring Collar in the opening plane of the cover base Connector of the arms of the support and spring structure Bottom of the locking means 9 on the cover base Axial end-side thickening of the locking means 10th on the cover Support ring segment Support ring segment Support ring segment Support arm Support arm 30 support arm

31 separating device

32 cutting edge

33 protective film

33 'Shattered protective film

34 receiving opening in the connector 22 for the pin 9 on the lid

35 separating means on one arm of the supporting and spring structure 37 mandrel-like outer geometry of the connecting piece 22

39 Lid on the lid base 0 Arm of the support and spring structure 1 Arm of the support and spring structure 2 Arm of the support and spring structure 3 Ring groove

44 Ring-shaped abutment 5 Stiffening section 6 Centering element 7 Blind hole in the pin 8 8 Ring web on the pin 8 9 Pot-shaped receiving opening for the pin 8

50 ring groove

51 snap hooks

52 annular stiffening section

53 locking hooks

54 locking hooks

55 snap collar

56 Lid

57 Lid base

58 lids

59 lid base

F1 First pressure force

F2 Second pressing force

Claims

claims

1. Closing and opening device (4) for a beverage container (1) having a fastening portion (19) for attachment to the open end (2) of the beverage container (1) and a lid (6), with which the device (4) by applying a compressive force to the same can be opened and closed, wherein by exerting a first compressive force (F1) from outside to a central region of the lid (6), the device (4) opens and by the exercise of a second pressure force (F2) of Externally on the radial edge of the lid (6), the device (4) closes, in which the mounting portion (19) and the lid (6) are connected to a multi-arm, elastic support and spring structure (13) radially inside the Fixing portion (19) and axially below the lid (6) is arranged, and that sealing means on the closing and opening device (4) are present, which seal the same in the closed state, dadu characterized in that axially below the support and spring structure (13), ie far from the cover (6), a protective film (33) on the closing and opening device (4) gas-tight or liquid-tight manner is formed or attached, which is arranged in that, when a force (F1) acting on the lid (6) is exerted for the first time, it is opened by components of the supporting and spring structure (13) or by a separate separating device (31) connected to the supporting and spring structure (13) , 35, 37) is destroyed.

2. closing and opening device according to claim 1, characterized in that by the mounting portion (19) and the multi-arm, elastic support and spring structure (13) a lid base (7) is formed, the protective film (33) on its cover distant side and to which the separately produced cover (6) can be fastened.

3. Closing and opening device according to claim 1 or 2, characterized in that arms (14, 15, 16) of the support and spring structure (13) are connected radially inwardly with a connecting piece (22) and with the separating device (31, 35, 37).

4. closing and opening device according to claim 3, characterized in that the separating device (31) has individual cutting edges (32) which are arranged aligned in the direction of the protective film (33).

5. Closing and opening device according to claim 4, characterized in that the cutting edges (32) in the center of the lid base (7) by means of the connecting piece (22) are interconnected.

6. closing and opening device according to claim 3, characterized in that the connecting piece (22) waiving the cutting edges (32) itself as a separating tool for destroying the protective film (33) is formed and an outer geometry (37) which in the direction to the undamaged protective film (33) is formed like a spike.

7. closing and opening device according to claim 3, characterized in that the arms (14, 15, 16) of the support and spring structure (13) itself as a separating device for destroying the protective film (33) are formed.

8. closing and opening device according to claim 7, characterized in that the arms (14, 15, 16) of the support and spring structure (13) on their protective film (33) side facing sharp and / or sharp release agent or portions (35 ) exhibit.

9. Closing and opening device according to one of claims 1 to 8, characterized in that the cover (6) on the connecting piece (22) can be fastened.

10. Closing and opening device according to claim 9, characterized in that the connecting piece (22) on its side facing the cover (6) has a receiving opening (34, 49) into which an axially from the center of the lid (6) projecting pin (8) is captive inserted.

11. Closing and opening device according to claim 10, characterized in that the pin (8) centrally or coaxially to its longitudinal axis has a blind hole (47).

12. Closing and opening device according to claim 10, characterized in that the receiving opening (34, 49) is pot-shaped and has on its inner wall an annular groove (50) into which an annular web (48) of the pin (8) can be latched.

13. closing and opening device according to one of claims 2 to 12, characterized in that the lid base (7) following the mounting portion (19) radially inwardly seen a flat-shaped circular collar (21) and thereafter first locking means (9 ) which cooperate with second locking means (10) on the cover (6) by the action of the force (F1) acting centrally on the cover and cooperating closingly upon the action of the force (F2) acting radially on the outside of the cover (6).

14. closing and opening device according to claim 13, characterized in that the first locking means (9) are formed as an annular groove on the lid base (7).

15. closing and opening device according to claim 13, characterized in that the second locking means (10) as from the inside of the lid (6) web-like projecting locking hooks are formed, each having an end-side thickening (24).

16. Closing and opening device according to one of the preceding claims, characterized in that the circular cover (6) has at its radial end an axially aligned sealing lip (11) and a radially oriented sealing lip (12).

17. Closing and opening device according to one of the preceding claims, characterized in that the lid base (7) on the collar (21) integrally formed support arms (28, 29, 30) which extend radially inwardly and with segments (25, 26 , 27) of a support ring (20) are connected, which surrounds the separating device (31, 35, 37) in compliance with a radial distance circular.

18. Closing and opening device according to claim 17, characterized in that in each case two support arms (28, 29) adjacent to an arm (14; 15; 16) of the support and spring structure (13) are arranged.

19, closing and opening device according to claim 17 or 18, characterized in that in each case a further support arm (30) is arranged directly between in each case two groups of two support arms (28, 29) between them an arm (14; ) receive the support and spring structure (13).

20. Closing and opening device according to claim 17, 18 or 19, characterized in that three support arms (28, 29, 30) carry a segment (25; 26; 27) of the support ring (20).

21. Closing and opening device according to one of claims 1 to 20, characterized in that the protective film (33) consists of a metal and is glued to the lid base (7).

22. Closing and opening device according to one of claims 1 to 20, characterized in that the protective film (33) as well as the other Ren components of the lid base (7) consists of a plastic and is manufactured with this in a manufacturing process or in a separate manufacturing process.

23. Closing and opening device according to one of the preceding claims, characterized in that the lid base (7) directly to the beverage container (1) is connectable.

24. Closing and opening device according to one of the preceding claims, characterized in that the lid base (7) in a central opening of a separate lid of the beverage container (1) is liquid and gas-tight used.

25. Closing and opening device according to one of the preceding claims, characterized in that the arms (14, 15, 16) of the support and spring structure (13) each have at least one looped in the axial direction of the closing and opening device fold (17).

26. closing and opening device according to one of the preceding claims, characterized in that the fastening portion (19) of the lid base (7) for connecting the same with the open end (2) of the beverage container (1) as a gas- and liquid-tight thread, Schnappver- conclusion, beading or bonding is formed.

27. Closing and opening device according to one of the preceding claims, characterized in that the fastening portion (19) is designed such that it can be released only with great force from the beverage container (1).

28. Closing and opening device according to one of the preceding claims, characterized in that the arms (40, 41, 42) of the support and Spring structure (13) are formed narrowing from radially outward to radially inward.

29. Closing and opening device according to one of the preceding claims, characterized in that the arms (40, 41, 42) of the support and spring structure (13) are connected radially outwardly with a circular stiffening portion (45), which at its to the lid ( 56, 58) facing side has an axially outwardly facing annular abutment portion (44).

30. closing and opening device according to claim 29, characterized in that the cover (56, 58) on its inner side annularly arranged ridge-shaped centering elements (46) which cooperate with the annular abutment portion (44) of the Deckenibais (57, 59).

31, closing and opening device according to claim 29 and / or 30, characterized in that the cover (56, 58) radially outwardly on its axial inside a latching hook (51, 54), which for closing the closing and opening device to an the lid base (57, 59) formed by locking collar (53, 55) engages under.

32. Closing and opening device according to claim 31, characterized in that on the lid base (57, 59) an annular groove (43) is formed, which covers the detent collar (53, 55) of the lid base (57, 59) radially partially.

33. Closing and opening device according to one of claims 28 to 30, characterized in that on the lid base (57, 59) axially below the annular groove (43) an annular stiffening portion (52) is formed.

34. Use of a closing and opening device according to one of the preceding claims, characterized in that it is provided with a drink can or a beverage bottle made of glass, made of a light metal or plastic is connected.