CLOSURE ASSEMBLY FOR A BEVERAGE CONTAINER AND METHOD FOR REPEATABLY CLOSING A BEVERAGE CONTAINER WITH A CLOSURE ASSEMBLY

Abstract

The invention relates to a closure assembly (1) for a beverage container (2), at least comprising a lid element (3) having an opening (4), and a closure element (5) for repeatably closing the opening (4), said closure element being disposed on the lid element (3); wherein the lid element (3) has an outer side (6) and an inner side (7), and the opening (4) has an opening edge (8) and an opening plane (9) formed by the opening edge (8); wherein the closure element (5) has at least one base part (10), a tab (11) and a cover (12); wherein the base part (10) comprises a frame part (13) which is disposed on the opening edge (8) and has a window (14), the tab (11) being pivotably connected to the frame part (13) by means of a first axis of rotation (16); and wherein the cover (12) closes the window (14) in an initial position (16) of the closure arrangement (1) and is connected pivotably to the frame part (13) via a second axis of rotation (17) or via a hinge (33). The invention also relates to a method for repeatably closing an opening (4) of a beverage container (2) with a closure assembly (1).

Claims

1. A closure assembly for a beverage container, at least comprising a lid having an opening and a closure for repeatably closing the opening, the closure disposed on the lid; wherein the lid has an outer side and an inner side and the opening has an opening edge and an opening plane formed by the opening edge; wherein the closure comprises at least one base part, a tab, and a cover; wherein the base part comprises a frame part, the frame part being disposed at the opening edge; wherein the frame part further comprises a window; wherein the tab is pivotably connected to the frame part at a first axis of rotation; wherein, when the cover is in a starting position, the closure assembly closes the window and is connected to the frame part pivotably at a second axis of rotation by a hinge; and wherein the tab is connected permanently to the cover by a guiding device; wherein the cover is configured such that, when the tab pivots about the first axis of rotation, the cover can pivot about the second axis of rotation at the hinge to an opening position; and wherein the window is configured to be open such that movement of the cover to the opening position allows liquid to flow from a first side of the lid to a second side of the lid.

2. The closure assembly of claim 1, wherein the tab and the cover rotate between the starting position and the opening position in a common direction of turning about the first axis of rotation or the second axis of rotation.

3. The closure assembly of claim 1, wherein the first axis of rotation and the second axis of rotation are parallel to each other.

4. The closure assembly of claim 1, wherein the frame part and the cover form a sealing surface closing the window in the starting position.

5. The closure assembly of claim 1, wherein the guiding device comprises at least one guide path situated on the cover and at least one guide pin engaging with the guide path and arranged on the tab, and the guide pin is movable along the guide path while pivoting the tab and the cover.

6. The closure assembly of claim 5, wherein, when the cover is in the starting position, the at least one guide pin is situated in the starting position in a locking position on the cover, and the guide pin only enters the guide path upon pivoting of the tab about the first axis of rotation from the locking position, and the pivoting of the cover wherein the cover is configured to pivot about the second axis of rotation only after the at least one guide pin enters the guide path.

7. The closure assembly of claim 6, wherein the guide path extends in a direction transverse to the first axis of rotation and transverse to the second axis of rotation or the hinge; wherein, when in the starting position the first axis of rotation is situated between a first portion and a second portion, wherein the first portion is at the second axis of rotation or the hinge, and wherein the second portion is at a projection of the guide pin and the locking position.

8. The closure assembly of claim 7, wherein, when the tab is in a maximum pivoted end position, the at least one guide pin is situated between the first portion and the second portion.

9. The closure assembly of claim 1, wherein the tab is connected to the base part in the starting position by a seal, wherein the connection created by the seal is broken when the tab pivots around the first axis of rotation.

10. The closure assembly of claim 1 further comprising a first seal running around the opening, the first seal being situated between the inner side and a bearing surface of the frame part.

11. The closure assembly of claim 1 further comprising a second seal running around the window at least in the starting position, the second seal being situated between the frame part and the cover.

12. The closure assembly of claim 1, wherein the frame part is captively attached to the lid along the opening edge.

13. The closure assembly of claim 1, wherein the closure is configured to form a repeatable gas-tight closing of the opening when in the starting position.

14. A closure element comprising at least one base part, a tab, and a cover; wherein the base part comprises a frame part having a window; wherein the tab is pivotably connected to the frame part by a first axis of rotation; wherein the cover in a starting position of the closure assembly closes the window and is connected to the frame part pivotably by a second axis of rotation or by a hinge; and wherein the tab is connected permanently to the cover by a guiding device.

15. (canceled)

16. A method for repeatably operating an opening of a beverage container having a closure assembly, wherein the closure assembly comprises at least one lid having an opening as well as a closure for repeatably closing the opening, the closure disposed on the lid; wherein the lid has an outer side and an inner side and the opening has an opening edge and an opening plane formed by the opening edge; wherein the closure comprises at least one base part, a tab, and a cover; wherein the base part comprises a frame part having a window, arranged at the opening edge; wherein the tab is pivotably connected to the frame part by a first axis of rotation; wherein the cover is connected to the frame part pivotably by a second axis of rotation within a hinge; wherein the tab is connected permanently to the cover by a guiding device; wherein the method, starting from a starting position in which the window is closed by the cover, comprises: pivoting the tab about the first axis of rotation, wherein pivoting the tab about the first axis of rotation pivots the cover about the second axis of rotation around the hinge until the cover reaches an open position to open the window wherein, while the window is open, liquid can flow from a first side of the lid to a second side of the lid through the window; and pivoting the tab and the cover back in order to close the window once again.

17. The closure assembly of claim 7, wherein, when the tab is in a maximum pivoted end position, the second axis of rotation or the hinge is vertically situated between the at least one guide pin and the first axis of rotation.

18. The method of claim 16, wherein the tab further comprises a guide pin and wherein the cover further comprises a guide path such that rotation of the tab about the first axis of rotation also rotates the cover about the second axis of rotation.

Description

[0083] The invention and its technical setting shall be explained more closely in the following with the aid of the accompanying figures. It should be pointed out that the invention is not to be limited to the indicated exemplary embodiments. In particular, unless otherwise stated explicitly, it is also possible to extract partial aspects from the situations explained in the figures and combine them with other parts and teachings of the present description. In particular, it should be noted that the figures and in particular the depicted size relations are only schematic. There are shown:

[0084] FIG. 1: a beverage container having a lid element in a perspective view;

[0085] FIG. 2: a closure assembly in a starting position in a perspective view;

[0086] FIG. 3: the closure assembly of FIG. 2 in an end position in a perspective view;

[0087] FIG. 4: the closure assembly of FIG. 3 in a perspective view and cross sectioned;

[0088] FIG. 5: the closure assembly of FIGS. 2 and 3 in an opening position, in a side view and cross sectioned;

[0089] FIG. 6: the closure assembly of FIGS. 2 to 5 in a back-pivoted starting position in a perspective view;

[0090] FIG. 7: the closure assembly of FIG. 6 in a perspective view and cross sectioned;

[0091] FIG. 8: the closure assembly of FIGS. 6 and 7 in a side view and cross sectioned;

[0092] FIG. 9: a frame part of a closure element of the closure assembly of FIGS. 2 to 8 in a perspective view;

[0093] FIG. 10: the frame part of FIG. 9 in a perspective view and cross sectioned;

[0094] FIG. 11: the frame part of FIGS. 9 and 10 in a top view from an outer side;

[0095] FIG. 12: the frame part of FIGS. 9 to 11 in a top view from an inner side;

[0096] FIG. 13: a cover of a closure element of the closure assembly of FIGS. 2 to 8 in a perspective view;

[0097] FIG. 14: the cover of FIG. 13 in a perspective view and cross sectioned;

[0098] FIG. 15: the cover of FIGS. 13 and 14 in a top view from an outer side;

[0099] FIG. 16: a tab of a closure element of the closure assembly of FIGS. 2 to 8 in a perspective view;

[0100] FIG. 17: the tab of FIG. 16 in a top view from an outer side;

[0101] FIG. 18: the tab of FIGS. 16 and 17 in a top view from an inner side;

[0102] FIG. 19: a covering of a closure element of the closure assembly of FIGS. 2 to 8 in a perspective view;

[0103] FIG. 20: a part of another closure element in a view from an outer side;

[0104] FIG. 21: the part of FIG. 20 in a side view and cross sectioned;

[0105] FIG. 22: the part of FIGS. 20 and 21 in a view from an inner side;

[0106] FIG. 23: a tab for the closure element of FIG. 20 in a perspective view;

[0107] FIG. 24: the other closure element of FIG. 20 in a perspective view and cross sectioned;

[0108] FIG. 25: the closure element of FIG. 24 in a side view and cross sectioned; and

[0109] FIG. 26: an enlarged detail of FIG. 25.

[0110] FIG. 1 shows a beverage container 2 having a lid element 3 in a perspective view. The lid element 3 has an outer side 6 and an inner side 7 and an opening 4. The opening 4 has an opening edge 8 and an opening plane 9 formed by the opening edge 8. The lid element 3 is or can be connected to the beverage container 2. The lid element 3 is inseparably (only destructively) connected to the beverage container 2. The inner side 7 of the lid element 3 forms the side of the lid element 3 facing toward the contents of the beverage container 2, while the outer side 6 of the lid element 3 forms the side of the lid element 3 facing away from the contents and toward the surroundings 28. The opening 4 of the lid element 3 is the single pouring opening for the contents of the beverage container 2.

[0111] FIG. 2 shows a closure assembly 2 in a starting position in a perspective view. FIG. 3 shows the closure assembly 2 of FIG. 2 in an end position 25 in a perspective view. FIG. 4 shows the closure assembly 2 of FIG. 3 in a perspective view and cross sectioned. FIG. 5 shows the closure assembly 2 of FIGS. 2 and 3 in an opening position 19 in a side view and cross sectioned. FIG. 6 shows the closure assembly 2 of FIGS. 2 to 5 in a back-pivoted starting position 16 in a perspective view. FIG. 7 shows the closure assembly 2 of FIG. 6 in a perspective view and cross sectioned. FIG. 8 shows the closure assembly 2 of FIGS. 6 and 7 in a side view and cross sectioned. FIGS. 2 to 8 shall be described together in the following. Reference is made to the remarks for FIG. 1.

[0112] The closure assembly 1 comprises a lid element 3 having an opening 4 as well as a closure element 5 for repeatably closing the opening 4, arranged on the lid element 3. The lid element 3 has an outer side 6 and an inner side 7 and the opening 4 has an opening edge 8 and an opening plane 9 formed by the opening edge 8.

[0113] The closure element 5 comprises a base part 10, a tab 11, and a cover 12. The base part 10 comprises a frame part 13 having a window 14, arranged at the opening edge 8. The tab 11 is connected to the frame part 13 only by a first axis of rotation 15 which it can pivot around. The cover 12 closes the window 14 in a starting position 16 of the closure assembly 1 and is connected pivotably to the frame part 13 only by a second axis of rotation 17 which it can pivot around. The tab 11 is connected to the cover 12 permanently, i.e., when the closure assembly 1 is in a state provided for the intended operation, by a guiding device 18. Thanks to the guiding device 18, the cover 12 can pivot by a pivoting of the tab 11 about the first axis of rotation 15 from the starting position 16 about the second axis of rotation 17 to an opening position 19 of the closure assembly 1 which frees up the window 14 and back again to the starting position 16.

[0114] The tab 11 and thus also the cover 12 can pivot between the nonpivoted starting position 16 and a maximally pivoted end position 25. In the end position 25 of the closure assembly 1, the tab 11 and the cover 12 are each in particular maximally pivoted and the window 14 and/or the opening 4 are maximally opened. Between the starting position 16 and the end position 25 a number of opening positions 19 are possible, in which the tab 11 and optionally the cover 12 in addition are situated in a position pivoted with respect to the starting position 16, yet not quite in the end position 25.

[0115] The tab 11 and the cover 12 rotate between the starting position 16 and the opening position 19 each time in a common direction of turning 32 about their axes of rotation 15, 17. Thus, the tab 11 and the cover 12 either rotate together in a first direction of turning or in a second direction of turning, opposite to the first direction of turning.

[0116] The first axis of rotation 15 and the second axis of rotation 17 are situated parallel to each other and at a spacing 20 from each other. The first axis of rotation 15 and the second axis of rotation 17 are each situated fixed in place on the closure assembly 1. Instead of the second axis of rotation 17, a hinge 33 can also be provided (see FIG. 8, indicated there; also FIGS. 20 to 22 and FIGS. 24 and 25), by which the components of the frame part 13 and the cover 12 are materially joined to each other.

[0117] The frame part 13 forms a frame enclosing the opening 4 and forms the window 14 enclosed by the frame. The tab 11 is situated at least in the area of the first axis of rotation 15 inside the frame. During the pivoting of the tab 11, one portion of the tab 11 is moved from the outer side 6 of the lid element 3 via the window 14 and the opening plane 9 to the inner side 7 of the lid element 3.

[0118] The frame part 13 and the cover 12 form a sealing surface 21 closing the window 14 in the starting position 16. In this way, the tightness is assured even with repeated opening and closing of the beverage container 2 through the repeatedly stressed sealing surface 21.

[0119] The guiding device 18 comprises two guide paths 22 situated on the cover 12 and two guide pins 23 engaging with the guide paths 22 and arranged on the tab 11. Each guide pin 23 is movable along the respective guide path 22 in the course of the pivoting of the tab 11 and the cover 12. The cover 12 has a guide path 22 on each of two mutually opposite sides. The tab 12 has two guide pins 23, each guide pin 23 cooperating with one guide path 22.

[0120] The guide pin 23 is a cylindrical extension of the tab 11, extending at least partly into the guide path 22.

[0121] The guide paths 22 of the cover 12 are situated between the guide pins 23 of the tab 11.

[0122] The guide path 22 and the guide pin 23 constitute a form fitting connection with respect to both directions of turning 32. Hence, a pivoting of the tab 11 about the first axis of rotation 15 can produce and control a pivoting of the cover 12 about the second axis of rotation 17.

[0123] The guide pin 23 is situated in the starting position 16 in a locking position 24 on the cover 12. The guide pin 23 only enters the guide path 22 from the locking position 24 upon pivoting of the tab 11 about the first axis of rotation 15, e.g., after surpassing an angle range of pivoting of at least 5 angle degrees about the first axis of rotation 15. The pivoting of the cover 12 then occurs about the second axis of rotation 17 only after the entry of the guide pin 23 in the guide path 22. Upon pivoting of the cover 12 back to the starting position 16, the guide pin 23 forces the cover 12 into a self-locking position 24 on the frame part 13. Thus, in the back pivoting, shortly before reaching the starting position 16, a local activation maximum needs to be surpassed in order for the cover 12 to snap in on the frame part 13. This self-locking position 24 also does not need to be exited until the pivoting of the cover 12 from the starting position 16 and into the opening position 19.

[0124] The guide paths 22 extend in a direction transverse to the first axis of rotation 15 and the second axis of rotation 17. In the starting position 16 and in a projection of the positions of the axes of rotation 15, 17 and the guide pins 23 in the opening plane 9, the first axis of rotation 15 is situated between the second axis of rotation 17 and the guide pins 23 as well as the locking position 24.

[0125] The guide pins 23 in a maximally pivoted end position 25 of the tab 11 and in a projection of the positions of the axes of rotation 15, 17 and the guide pins 23 in the opening plane 9 are situated between the first axis of rotation 15 and the second axis of rotation 17.

[0126] The projection occurs each time along a direction transverse to the opening plane 9. That is, the positions of the axes of rotation 15, 17 and the guide pins 23 are viewed from a position for example above the opening plane 9, the line of sight running perpendicular to the opening plane 9.

[0127] The base part 10 comprises in addition a covering 26 attached to it, which can be pivoted by the tab 11 relative to the frame part 13. The covering 26 forms a sheetlike element, which serves primarily to cover the cover 12 pivoted into the beverage container 2 when the closure assembly 1 is opened. This is supposed to prevent a soiling of the side of the cover 12 oriented toward the outer side 6 of the lid element 3, prior to the first activation of the tab 11.

[0128] Upon activation of the tab 11 for the first time, the covering 26 is contacted by the tab 11 and pivots along with it. Thanks to the maximum pivoting of the tab 11, the covering 26 is moved into a self-locking end position, in which it remains regardless of the further activation of the tab 11. The self-locking is produced by an interaction between the covering 26 and the frame part 13.

[0129] The covering 26 is connected to the base part 10 across a seal element 27 only in a nonpivoted starting position 16. During a first-time pivoting of the covering 26, the connection formed through the seal element 27 is destroyed.

[0130] The seal element 27 serves to identify the condition of the closure element 5 or the beverage container 2. An undamaged seal element 27 indicates that the closure element 5 has not yet been activated, and so the beverage container 2 has not been opened. A damaged seal element 27, on the other hand, indicates that the closure element 5 was activated at least once, and so the beverage container 2 was opened at least once.

[0131] A first seal 30 running around the opening 4 is situated between the inner side 7 and a bearing surface 29 of the frame part 13. The bearing surface 29 is oriented parallel to a partial surface of the inner side 7 of the lid element 3. The first seal 30 is situated in the area of this partial surface. The first seal 30 is fastened to the frame part 13 and is arranged on the lid element 3 at this partial surface in the course of an assembly of the frame part 13.

[0132] A second seal 31 running around the window 14 at least in the starting position 16 is situated between the frame part 13 and the cover 12. This second seal 31 makes possible a sealing of the window 14 or the opening 4 by a tight connection between the cover 12 and the frame part 13.

[0133] The cover 12 comprises a vent element 34, a fluidic connection between the inner side 7 and the outer side 6 being formed during a first-time pivoting of the tab 11 by the vent element 34. The vent element 34 is formed by the second seal 31.

[0134] The vent element 34 is channel-shaped and makes possible a fluidic connection between the inside of the beverage container 2 and the surroundings 28 of the beverage container 2. Thanks to the vent element 34, a venting, i.e., a pressure equalization can occur between the inside of the beverage container 2 and the surroundings 28 of the beverage container 2. The vent element 34 is designed so that the tab 11 through a closing element 35 of the tab 11 closes the minimum opening cross section of the vent element 34 when the closing element 35 is placed in the minimum opening cross section.

[0135] The vent element 34 is formed by a channel 38 in the second seal 31. The channel 38 extends through an opening in the cover 12 arranged flush with it and the second seal 31 arranged thereon. The channel 38 or the minimum opening cross section in the second seal 31 is closed by a closing element 35 of the tab 11.

[0136] FIG. 9 shows a frame part 13 of a closure element 5 of the closure assembly 2 of FIGS. 2 to 8 in a perspective view. FIG. 10 shows the frame part 13 of FIG. 9 in a perspective view and cross sectioned. FIG. 11 shows the frame part 13 of FIGS. 9 and 10 in a top view from an outer side 6. FIG. 12 shows the frame part 13 of FIGS. 9 to 11 in a top view from an inner side 7. FIGS. 9 to 12 shall be described together in the following. Reference is made to the remarks for FIGS. 1 to 8.

[0137] The frame part 13 forms a frame enclosing the opening 4 of the lid element 3 and forms the window 14 enclosed by the frame. The tab 11 is situated at least in the area of the first axis of rotation 15 inside the frame. During the pivoting of the tab 11, at least one portion of the tab 11 is moved from the outer side 6 of the lid element 3 via the window 14 and the opening plane 9 to the inner side 7 of the lid element 3.

[0138] The first axis of rotation 15 and the second axis of rotation 17 are situated parallel to each other and at a spacing 20 from each other. The first axis of rotation 15 and the second axis of rotation 17 are each situated fixed in place on the frame part 13. Instead of the second axis of rotation 17, a hinge 33 can also be provided (only suggested here), by which the components of the frame part 13 and the cover 12 are materially joined to each other.

[0139] A first seal 30 running around the opening 4 is situated between the inner side 7 and a bearing surface 29 of the frame part 13. The bearing surface 29 is oriented parallel to a partial surface of the inner side 7 of the lid element 3. The first seal 30 is situated in the area of this partial surface. The first seal 30 is fastened to the frame part 13 and is arranged on the lid element 3 at this partial surface in the course of an assembly of the frame part 13.

[0140] The frame part 13 and the cover 12 form a sealing surface 21 closing the window 14 in the starting position 16. In this way, the tightness is assured even with repeated opening and closing of the beverage container 2 through the repeatedly stressed sealing surface 21.

[0141] FIG. 13 shows a cover 12 of a closure element 5 of the closure assembly 1 of FIGS. 2 to 8 in a perspective view. FIG. 14 shows the cover 12 of FIG. 13 in a perspective view and cross sectioned. FIG. 15 shows the cover 12 of FIGS. 13 and 14 in a top view from an outer side 6. FIGS. 13 to 15 shall be described together in the following. Reference is made to the remarks for FIGS. 1 to 8.

[0142] The guiding device 18 comprises two guide paths 22 situated on the cover 12 and two guide pins 23 engaging with the guide paths 22 and arranged on the tab 11 (see FIGS. 16 to 18). Each guide pin 23 is movable along the respective guide path 22 in the course of the pivoting of the tab 11 and the cover 12. The cover 12 has a guide path 22 on each of two mutually opposite sides. The tab 12 has two guide pins 23, each guide pin 23 cooperating with one guide path 22. The guide paths 22 extend in a direction transverse to the first axis of rotation 15 and the second axis of rotation 17.

[0143] The guide path 22 and the guide pin 23 constitute a form fitting connection with respect to both directions of turning 32. Hence, a pivoting of the tab 11 about the first axis of rotation 15 can produce and control a pivoting of the cover 12 about the second axis of rotation 17.

[0144] The guide pin 23 is situated in the starting position 16 in a locking position 24 on the cover 12. The guide pin 23 only enters the guide path 22 from the locking position 24 upon pivoting of the tab 11 about the first axis of rotation 15, e.g., after surpassing an angle range of pivoting of at least 5 angle degrees about the first axis of rotation 15. The pivoting of the cover 12 then occurs about the second axis of rotation 17 only after the entry of the guide pin 23 in the guide path 22. Upon pivoting of the cover 12 back to the starting position 16, the guide pin 23 forces the cover 12 into a self-locking position 24 on the frame part 13. Thus, in the back pivoting, shortly before reaching the starting position 16, a local activation maximum needs to be surpassed in order for the cover 12 to snap in on the frame part 13. This self-locking position 24 also does not need to be exited until the pivoting of the cover 12 from the starting position 16 and into the opening position 19. The self-locking is made possible by an elastically deformable locking element 36 on the cover 12.

[0145] A second seal 31 running around the window 14 at least in the starting position 16 is situated between the frame part 13 and the cover 12. This second seal 31 makes possible a sealing of the window 14 or the opening 4 by a tight connection between the cover 12 and the frame part 13.

[0146] The cover 12 comprises a vent element 34, a fluidic connection between the inner side 7 and the outer side 6 being formed during the first time pivoting of the tab 11 by the vent element 34. The vent element 34 is formed by the second seal 31. The vent element 34 is channel-shaped and makes possible a fluidic connection between the inside of the beverage container 2 and the surroundings 28 of the beverage container 2. Thanks to the vent element 34, a venting, i.e., a pressure equalization can occur between the inside of the beverage container 2 and the surroundings 28 of the beverage container 2. The vent element 34 is designed so that the tab 11 through a closing element 35 of the tab 11 (see FIG. 18) closes the minimum opening cross section of the vent element 34 when the closing element 35 is placed in the minimum opening cross section.

[0147] The vent element 34 is formed by a channel 38 in the second seal 31. The channel 38 extends through an opening in the cover 12 arranged flush with it and the second seal 31 arranged thereon. The channel 38 or the minimum opening cross section in the second seal 31 is closed by a closing element 35 of the tab 11.

[0148] FIG. 16 shows a tab 11 of a closure element 5 of the closure assembly 1 of FIGS. 2 to 8 in a perspective view. FIG. 17 shows the tab 11 of FIG. 16 in a top view from an outer side 6. FIG. 18 shows the tab 11 of FIGS. 16 and 17 in a top view from an inner side 7. FIGS. 16 to 18 shall be described together in the following. Reference is made to the remarks for FIGS. 1 to 8.

[0149] The tab 11 is U-shaped in configuration. At the ends of the side arms, the tab 11 has respectively inwardly pointing guide pins 23. In the middle of the side arms, the tab has outwardly pointing shafts to form the first axis of rotation 15. These shafts extend in the bearings fashioned as openings on the frame part 13. Further, the tab comprises a closing element 35 for closing the vent element 34.

[0150] FIG. 19 shows a covering 26 of a closure element 5 of the closure assembly 2 of FIGS. 2 to 8 in a perspective view. Reference is made to the remarks for FIGS. 1 to 8.

[0151] The covering 26 forms a sheetlike element, which serves primarily for covering the cover 12 pivoted into the beverage container 2 upon opening the closure assembly 1. The covering 26 is materially connected to the frame part 13 through contact points 37. During a first-time activation of the tab 11, the covering 26 is contacted by the tab 11 and pivots along with it. The covering 26 is connected to the base part 10 across a seal element 27 only in a nonpivoted starting position 16. During a first-time pivoting of the covering 26, the connection formed through the seal element 27 is destroyed.

[0152] FIG. 20 shows a part of another closure element 5 in a view from an outer side 6. FIG. 21 shows the part of FIG. 20 in a side view and cross sectioned. FIG. 22 shows the part of FIGS. 20 and 21 in a view from an inner side 7. FIG. 23 shows a tab 11 for the closure element 5 of FIG. 20 in a perspective view. FIG. 24 shows the other closure element 5 of FIG. 20 in a perspective view and cross sectioned. FIG. 25 shows the closure element 5 of FIG. 24 in a side view and cross sectioned. FIG. 26 shows an enlarged detail of FIG. 25. FIGS. 20 to 26 shall be described together in the following. Reference is made to the remarks for FIGS. 1 to 19.

[0153] The other closure element 5 of FIGS. 20 to 26 comprises, unlike the closure element 5 of FIGS. 2 to 19, a single-piece assembly of frame part 13 and cover 12. The closure element thus comprises only two injection molded parts, the base part 10 and the cover 12, as a combined injection molded part joined by a hinge 33, and the tab 11 as a separate injection molded part, these parts being assembled to form the closure element 5. These parts are connected to each other captively by the first axis of rotation 15 and the hinge 33.

[0154] In the case of the hinge 33, the parts which are movable relative to each other, namely the cover 12 and the frame part 13, are joined permanently to each other, here materially, by an elastically deformable connection. This connection is formed by an especially thin segment of the parts, which is thus elastically deformable. In the case of the hinge 33, the rotation occurs about the hinge 33 or an axis of the hinge 33, but this need not be fixed in its location. In particular, a translatory movement of the parts relative to each other is also possible, while this translatory movement can be limited to a minimum by its design.

[0155] In the case of the closure element 5 of FIGS. 20 to 26, the vent element 34 is formed by a channel 38 in the first seal 30. The channel 38 extends through an opening in the frame part 13 arranged flush with it and the first seal 30 arranged on the frame part 13. The channel 38 or the minimum opening cross section of the vent element 34 in the first seal 30 is closed by a closing element 35 arranged on the tab 11 (see FIG. 26).

LIST OF REFERENCE NUMBERS

[0156] 1 Closure assembly [0157] 2 Beverage container [0158] 3 Lid element [0159] 4 Opening [0160] 5 Closure element [0161] 6 Outer side [0162] 7 Inner side [0163] 8 Opening edge [0164] 9 Opening plane [0165] 10 Base part [0166] 11 Tab [0167] 12 Cover [0168] 13 Frame part [0169] 14 Window [0170] 15 First axis of rotation [0171] 16 Starting position [0172] 17 Second axis of rotation [0173] 18 Guiding device [0174] 19 Opening position [0175] 20 Spacing [0176] 21 Sealing surface [0177] 22 Guide path [0178] 23 Guide pin [0179] 24 Locking position [0180] 25 End position [0181] 26 Covering [0182] 27 Seal element [0183] 28 Surroundings [0184] 29 Bearing surface [0185] 30 First seal [0186] 31 Second seal [0187] 32 Direction of turning [0188] 33 Hinge [0189] 34 Vent element [0190] 35 Closing element [0191] 36 Locking element [0192] 37 Contact point [0193] 38 Channel