AT17738U1 - Cap for closing a container - Google Patents

Abstract

The invention relates to a closure cap (11) for closing the pouring opening of a container, having a cylindrical threaded part (15) with an open edge (27) and an internal thread which can interact with an external thread of a container neck of the container, a guarantee band (17), which is adapted to be held on a projection formed on the container neck and a holding device (19,21) having a first and a second end (41,43,45,47), the first end (41,43) having the open edge (27) of the threaded part (15) is firmly connected and the second end (45,47) is firmly connected to the guarantee band (17). The holding device has two first outer holding straps (19a, 19b) and at least one second inner holding strap (21a, 21b), the at least one second holding strap (21a, 21b) being arranged between the first holding straps (19a, 19b) and the first Retaining straps (19a, 19b) are longer than the at least one second retaining strap (21a, 21b).

Description

description

CAP FOR SEALING A CONTAINER

FIELD OF THE INVENTION

The invention relates to a closure cap for closing the pouring opening of a container according to the preamble of claim 1 and a container according to the preamble of claim 20.

STATE OF THE ART

Closure caps are known from the prior art in the field of plastic closure caps with a tamper-proof strip, which caps are held captively on the container and close the pouring opening. However, such closure caps have the disadvantage that in the open state the closure caps held on the container impede operation of the container. For example, the cap may get in the way of pouring liquid from the container, or the cap may get in the way of the user drinking directly from the container.

[0003] The holding function is also important insofar as there are already legal provisions which oblige closures of beverage bottles to be captively connected to the beverage bottle even when they are open.

OBJECT OF THE INVENTION

It is therefore an object of the invention to prevent the disadvantages described above by creating a captive closure cap which is not a hindrance to any use of the container to be closed.

DESCRIPTION

The solution of the task is achieved with a cap for closing the pouring opening of a container by the features listed in the characterizing section of claim 1. Further developments and/or advantageous embodiment variants are the subject matter of the dependent patent claims.

The invention is characterized in that the holding device has two first outer straps and at least one second inner strap, the at least one second strap being arranged between the first straps and the first straps being longer than the at least one second strap. The different lengths of the first retaining straps and the at least one second retaining strap make it possible for the threaded part to be forced into a position after unscrewing from the container neck, in which the threaded part is fixed. This limits the range of motion of the threaded part after unscrewing. When drinking from the container or pouring liquid from the container, the threaded part does not get in the way.

The invention is preferably characterized in that the first tethers and the at least one second tether from a first position, in which first position they are arranged within the tamperproof band, can be pulled into a second position in which they are outside of the tamperproof band are arranged. The retaining straps can be made from the guarantee strip and do not have to be additionally produced or attached to the guarantee strip.

In a further preferred embodiment of the invention, the first retaining straps are formed in the first position within the guarantee strip and have a C-shape. The C-shape allows the retaining straps to be folded together in the first position and accordingly to save space within the guarantee strap and when

Unscrew the threaded part unfold to the second position.

In a further preferred embodiment of the invention, the at least one second retaining strap is formed in the first position within the guarantee strip and has a C-shape. As a result, the at least one second retaining strap also has the advantages set out in the paragraph above.

In a particularly preferred embodiment of the invention, the first tethers and the at least one second tether cooperate to latch in the second position, whereby the threaded portion is fixed when the first and second tethers are in the second position. The function of latching the threaded part in the second position of the retaining straps can be achieved in a simple and surprising manner in that the retaining straps are cut out of the guarantee strip by cuts in a predefined shape.

The invention is also characterized in that the first tethers and the at least one second tether form a snap joint by the at least one second tether is bent in the second position and the first two tethers are stretched. The defined lengths of the retaining straps have the effect that when the threaded part is unscrewed, the at least one second retaining strap is bent and the first retaining straps are stretched in the second position. The bent second retaining strap has a restoring force and tensions the first retaining straps. As a result, the threaded part is fixed in the second position. From the second position of the retaining straps, the threaded part can also be screwed back onto the container by overcoming the restoring force of the second retaining strap in order to close it again.

It has proven to be useful if two second tethers are present. This allows a stable snap joint to be realized from two first and two second retaining straps.

In a further particularly preferred embodiment of the invention, the first and second retaining straps are formed by cuts on the tamper-proof strip from the tamper-proof strip. The retaining straps therefore do not have to be arranged as additional elements on the guarantee strap and the threaded part, but can be cut out of the guarantee strap. The C-shape is particularly easy to produce by cutting.

In the first position, the second retaining straps are expediently separated from the first retaining straps by a first cut. The first and second retaining straps are separated from each other only by the first cut and require little space on the guarantee strip. This also allows the number of cuts to be kept low.

A web is expediently formed between the second retaining straps on the guarantee strip. Due to the fact that the web has C-shaped indentations, which originate from the C-shaped curves of the second retaining straps, the second retaining straps are held on the web before the closure cap is opened for the first time. A radial force, which arises when the threaded part is unscrewed, is necessary in order to pull the second retaining straps out of the web and unfold them. It is also conceivable that the sheets are only separated from one another by a cut and therefore there is no web on the guarantee strip.

In a further particularly preferred embodiment of the invention, the first and second tethers each have a first and second leg, wherein the first and second legs are connected to each other by an arch and the first legs have first ends which are connected to the open edge of the threaded portion are fixedly connected, and the second legs have second ends which are fixedly connected to the guarantee strip. The tethers are folded together within the tamper evident band and unfold upon unscrewing the threaded portion by pulling the first and second legs apart. In the second position, the first and second tethers assume a predefined length to implement a snap joint.

Because the first and second legs are advantageously separated from one another by a second cut in the first position, the first and second retaining straps can be produced on the anti-tamper strip by a few cuts with a specific length and shape. The second cuts preferably have a horizontal orientation extending towards the open edge of the threaded portion.

The arches of the first retaining straps or the arches of the second retaining straps are expediently facing one another in the first position. As a result, the retaining straps can be arranged on the guarantee strap or cut out of it in as space-saving a manner as possible.

It is advantageous if the first retaining straps are separated from the guarantee strip by a third cut. The third cuts are preferably aligned vertically. As a result, the first ends of the first retaining straps are separated from the guarantee strip and can be detached from the guarantee strip.

The second retaining straps are expediently each separated from the guarantee strip by a fourth cut. The fourth cuts are formed together with the first cuts in such a way that first and second ends are formed on the second retaining straps, which connect the second retaining straps to the threaded part or the guarantee strip.

In a preferred embodiment, the first and fourth cuts are C-shaped. As a result, arcs are formed on the first and second retaining straps, on which the retaining straps can be unfolded from the first position.

Appropriately, the second cuts of the first retaining straps and the third cuts or the first cuts and the second cuts of the second retaining straps are connected to one another. This allows the first and second tethers to deploy from the first position.

The invention is also preferably characterized in that a plurality of projections is formed on the inside of the guarantee strip and the first and second retaining straps are formed above the projections from the guarantee strip. The protrusions do not interfere with the first and second tethers because they are formed in a lower band portion, whereas the tethers are located in an upper band portion. The anti-tamper strip preferably has a height of between 4 and 8 mm and particularly preferably between 5 and 6 mm.

In a particularly preferred embodiment of the invention, the guarantee strip has slots distributed over the circumference with an upper edge and a lower edge, the upper edge being formed by a section of the guarantee strip running in the shape of a circular arc and the lower edge being formed by a section of the guarantee strip which is inclined inwards in the radial direction Wall section is formed and the lower edge of each slot forms the engagement means for positive engagement in an abutment arranged in the region of the container neck. Since the engagement means in the form of the inwardly inclined wall sections are not present over the entire circumference of the anti-tamper strip and slots are also present, the design of which further reduces the use of material, the material requirement for plastic can be significantly reduced by up to 5%. In addition, the wall section cannot move inwards in the radial direction, as a result of which the guarantee ring is held on the retaining ring and can only be pulled over it when the guarantee band is stretched at its circumference. The anti-tamper strip is held so firmly by the wall sections on the retaining ring that the predetermined breaking elements will surely tear before the wall sections are held in place. However, the wall sections are flexible or moveable in the radial outward direction. As a result, the wall sections can be demolded from the injection mold or the injection mold with little effort. For the same reason, the application force for snapping open the closure cap is significantly reduced compared to the prior art. An expansion of the guarantee band, which can lead to permanent damage to the closure cap, is largely prevented when demolding and pressing on.

Another aspect of the invention relates to a container with a container neck and a

A closure cap having the features above which screws onto and off the neck of a container.

Further advantages and features emerge from the following description of an embodiment of the invention with reference to the schematic representations. It shows in a representation that is not true to scale:

[0027] FIG. 1: a side view of a closure cap with a guarantee band;

[0028] FIG. 2: an isometric view of the closure cap from FIG. 1 in a first position;

[0029] FIG. 3: an isometric view of a container neck and the closure cap from FIG. 1 in a second position,

[0030] FIG. 4: a side view of the closure cap and the upper part of a container,

[0031] FIG. 5: a perspective view of the guarantee band with retaining projections in a second embodiment, with the threaded part being unscrewed from the container neck,

[0032] FIG. 6: a perspective view of the guarantee band from FIG. 5,

[0033] FIG. 7: a longitudinal section through the anti-tamper strip from FIG. 5 in a perspective view and

[0034] FIG. 8: a detailed view of an inwardly inclined wall section of the anti-tamper strip with visualized angles of inclination.

In the figures 1 to 4, a closure cap is shown, which is denoted by the reference numeral 11 as a whole. The closure cap 11 is held captive on a container 13, in particular on a bottle 13. The closure cap 11 comprises a cylindrical threaded part 15, a guarantee strip 17 and two first, outer retaining straps 19a, 19b and two second, inner retaining straps 21a, 21b.

The threaded portion 15 includes a bottom 23 and a first cylindrical shell 25 with an open edge 27. On the inside of the shell 25 an internal thread 29 is formed. The container 13 comprises a container body 31 and a container neck 33 adjoining the container body 31. The container neck 33 is designed as a second cylindrical shell. An external thread 35 is formed on the container neck 33 and interacts with the internal thread 29 . As a result, the threaded part 15 can be screwed onto and off the container neck 33 . The closure cap 11 closes the pouring opening 37 which is provided within the container neck 33 .

The anti-tamper strip 17 is held on the container neck 33 in a form-fitting manner. For this purpose, an annular projection is formed on the outside of the container neck 33, which projections 39 formed on the inside of the anti-tamper strip 17 can reach under. The guarantee strip 17 can be rotated relative to the container neck 33 . As FIG. 2 shows, the first and second retaining straps 19a, 19b, 21a, 21b are cut out of the anti-tamper strip 17 above the projections 39. FIG. The projections 39 are therefore not in the way of the tethers.

The first tethers 19a, 19b each have a first end 41a, 41b and a second end 43a, 43b. The first ends 41a, 41b are firmly connected to the open edge 27. The second ends 43a, 43b are firmly connected to the anti-tamper strip 17. As a result, the closure cap 11 is held captive on the container 13 .

The second tethers 21a, 21b each have a first end 45a, 45b and a second end 47a, 47b. The first ends 45a, 45b are firmly connected to the open edge 27. The second ends 47a, 47b are firmly connected to the anti-tamper strip 17.

The first tethers 19a, 19b and the second tethers 21a, 21b are cut by cuts with predetermined shapes from the guarantee band and are located in a first

Position in which the threaded part 15 is screwed onto the container neck 33, inside the guarantee band 17. The second tethers are arranged inside the first tethers and are shorter than the first tethers. If the threaded part 15 is unscrewed from the container neck 33, the first and second retaining straps 19a, 19b, 21a, 21b are pulled out of the guarantee strip into a second position.

The cuts, which will be described in more detail below, give the first and second tethers 19a, 19b, 21a, 21b a C-shape. The first and second straps therefore each have a first leg 49a, 51a and a second leg 49b, 51b. The first and second legs 49a, 51a, 49b, 51b are each connected to one another by a bend 53a, 53b, 55a, 55b. The first ends and second ends 41a, 41b, 43a, 43b correspond to the ends of the first legs 49a and the second legs 49b of the first retaining straps. The first ends and second ends 45a, 45b, 47a, 47b correspond to the ends of the first legs 51a and the second legs 51b of the second retaining straps. The arcs 53a, 53b, 55a, 55b face each other.

For reasons of clarity, the reference numbers for the sections can only be seen in FIG. The second straps 21a, 21b connect directly to the first straps 19a, 19b and are separated from them by first C-shaped cuts 57a, 57b. The first and second legs 49a, 49b, 51a, 51b are each separated from one another by second cuts 59a, 59b, 61a, 61b. So that the first retaining straps 19a, 19b can be transferred from the first position to the second position and can be moved out of the guarantee strap 17, they are separated from the guarantee strap 17 by third cuts 63a, 63b or are cut out of it. The second retaining straps 21a, 21b are separated from the guarantee strap 17 by fourth C-shaped cuts 65a, 65b and can be transferred into the second position when the threaded part 15 is unscrewed because of the fourth cuts.

The second cuts 59a, 59b of the first straps 19a, 19b are connected to the third cuts 63a, 63b. The second cuts 61a, 61b of the second retaining straps 21a, 21b are connected to the first cuts 57a, 57b. As a result, the first and the second retaining straps 19a, 19b, 21a, 21b can be pulled out of the anti-tamper strip 17 when the threaded part 15 is unscrewed and unfolded into the second position.

The fourth cuts 65a, 65b are set in such a way that a web 67 is formed on the anti-tamper strip 17 between the two second retaining straps 21a, 21b.

The cuts have a precisely predefined length, so that the first and second retaining straps 19a, 19b, 21a, 21b have a length that is precisely matched to one another. Surprisingly, this allows the first tethers and the second tethers to interact in such a way that they snap in the second position, whereby the threaded portion 15 is fixed when the first and second tethers are in the second position. The first straps and the second straps can form a snap joint in that the second straps are bent in the second position and the two first straps are stretched. The threaded part 15 is snapped in the second position and does not disturb the user by changing its position. Also, when liquid is poured out of the container 13, the threaded portion 15 cannot fold into the liquid flow since it is held in the second position by the first and second retaining straps 19a, 19b, 21a, 21b.

In the first position, the first and second retaining straps 19a, 19b, 21a, 21c are held in the guarantee strip by their C-shape. The fact that the first and second retaining straps lie in the guarantee strip 17 indicates that the threaded part 15 has not yet been unscrewed and the closure cap 11 is unopened. It is therefore not mandatory for the threaded part 15 to be connected to the guarantee band 17 by additional predetermined breaking elements 69 . However, a plurality of frangible elements 69 can be provided between the open edge 27 and the guarantee strip 17, as is shown in FIG.

According to the following figure description of Figures 5 to 8, the projections 39 can be formed in a further embodiment. This embodiment of the protrusions

39 is the content of the Swiss patent applications with the application numbers 01467/19 and 01695/19, the priorities of which were claimed and the disclosures of which are hereby incorporated into the present patent application. Slots 81 are provided on the guarantee ring distributed over the circumference of the guarantee band 17 . The shooters 81 each have an upper edge 83 and a lower edge 85 . The upper edge 83 is formed by a section of the anti-tamper strip 17 in the shape of a circular arc. The lower edge 85 corresponds to the free edge of a wall section 87 inclined inwards in the radial direction. Due to the inner inclination of the wall section 87, the lower edge 85 has a smaller radius than the guarantee band 17 and can therefore strike an abutment of the container neck 33 if the threaded part 15 of the container neck 33 is unscrewed. The abutment is realized by a retaining ring 89 which is formed below the external thread 35 on the container neck 33 . When the threaded part 15 is unscrewed, the lower edge 85 grips the retaining ring 89 in a form-fitting manner, as a result of which the anti-tamper strip 17 is reliably held on the retaining ring 89 even under high axial forces.

Each wall section 87 has a first section 91 and two second sections 93 . The first partial section 91 represents a jacket section that is folded inwards and is preferably flat. The second sections 93 adjoin the inward-facing sides of the first section 91 and connect it to the anti-tamper strip 17. The second sections 93 can be curved or planar and face one another at an angle inwards. The lower edge 85 of the slot 81 corresponds to the free edges of the first section 91 and the second sections 93 and lies in a plane 95 which is shown in FIG. The plane 95 is preferably oriented perpendicularly to the central axis 97 of the closure cap 11 . These described design features of the wall section 87 have the advantage that the wall section 87 can bear against the retaining ring 89 with the entire lower edge 85 and does not yield upwards in the event of an axial tensile force. As a result, the anti-tamper strip 17 is held inseparably on the retaining ring 89 or can only be removed from the retaining ring 89 with destruction. A movement of the first subsection 91 inward in the radial direction is prevented by the provision of the second subsections 93 . However, a movement of the first section 91 outwards in the radial direction is possible. This movement is flexible and the wall portion 87, after being pushed radially outward, returns to its normal inwardly inclined position. This has the further advantage that the closure cap can be easily removed from the mold and pressed onto the container neck 33 with little force. The flexibility of the wall section 87 means that it can be removed from an injection mold and pressed onto a container neck 33 without the risk of the wall section 87 being damaged.

It is preferred if the inclined wall sections 87 have a reduced wall thickness compared to the rest of the guarantee band 17 . FIG. 8 shows that the area of the lower edge 85 has the smallest wall thickness. As a result, the radially outward flexibility of the wall section 87 described above is further improved. The wall thickness of the wall section 87 increases linearly downwards, starting from the lower edge 35 .

The anti-tamper strip 17 is shown without the threaded part 15 in FIGS. In FIGS. 7 and 8 it can be clearly seen that above the slits 81 on the anti-tamper strip 17 an annular bead 99 is formed, on which the upper edges 83 lie.

A first and second angle of inclination 101,103 are entered in FIG. The first angle of inclination 101 indicates the inclination of the first section 91 relative to the plane of the lower edge 85 . The first angle of inclination 101 has a magnitude between 60 and 80 degrees and preferably between 65 and 75 degrees. The greater the first angle of inclination 101, the better the stability of the wall sections 87 against vertical forces or axial tensile forces caused by the unscrewing of the threaded part 15. However, the first angle of inclination 101 must not be too large, otherwise the retaining ring 89 will not be sufficient can be undercut.

The second inclination angle 103 gives the inclination of the slot 81 with respect to the plane

the bottom edge 95. The connecting line 105, which represents the inclination of the slot, is a connection of the upper edge 83 with the lower edge 85 in a plane which is spanned by the central axis 97 and the connecting line 105. The second angle of inclination 103 is enclosed by the connecting straight line 105 and the plane 95. The second angle of inclination 103 has a magnitude between 30 and 50 degrees and preferably between 35 and 45 degrees. The greater the second angle of inclination 103, the easier it is for the container closure 11 to be removed from the mold.

LEGEND:

11 locking cap

13 containers, bottle

15 Cylindrical threaded part

17 guarantee band

19a, 19b First, outer straps

21a,21b Second inner straps

23 floor

25 Cylindrical Shell

27 Open edge

29 internal thread

31 container body

33 container neck

35 external thread

37 pouring opening

39 projections

41a, 41b First ends of the first tethers 43a, 43b Second ends of the first tethers 45a, 45b First ends of the second tethers 47a, 47b Second ends of the second tethers 49a First legs of the first tethers 49b Second legs of the first tethers 51a First legs of the second tethers 51b Second legs of the second retaining straps 53a, 53b Arch of the first retaining straps

55a, 55b Arch of the second tethers 57a, 57b First cuts of the first tethers 59a, 59b Second cuts of the first tethers 61a, 61b Second cuts of the second tethers 63a, 63b Third cuts of the first tethers 65a, 65b Fourth cuts of the second tethers 67 web

69 predetermined breaking elements

81 slots

83 top edge

85 lower edge

87 wall section

89 retaining ring

91 First part

93 Second part

95 level

97 central axis

99 ring bead

101 First angle of inclination

103 Second angle of inclination

105 connecting line

Claims (20)

Expectations 1. Closure cap (11) for closing the pouring opening (37) of a container (13), having - a cylindrical threaded part (15) with an open edge (27) and an internal thread (29) which is connected to an external thread (35) of a container neck (33) of the container (13), - a guarantee strip (17) which is designed to be held on a projection formed on the container neck (33) and - a holding device (19,21) with a first and a second End (41,43,45,47), the first end (41,45) being firmly connected to the open edge (27) of the threaded part (15) and the second end (43,47) to the guarantee band (17) firmly connected, characterized in that the holding device has two first outer holding straps (19a, 19b) and at least one second inner holding strap (21a, 21b), the at least one second holding strap (21a, 21b) between the first holding straps (19a, 19b) and the first retaining straps (19a, 19b) are longer as the at least one second retaining strap (21a, 21b). 2. Closure cap according to Claim 1, characterized in that the first retaining straps (19a, 19b) and the at least one second retaining strap (21a, 21b) move from a first position, in which first position they are arranged within the anti-tamper strip (17), in extendable to a second position in which they are located outside of the tamperproof band (17). 3. Closure cap according to claim 2, characterized in that the first retaining straps (19a, 19b) are formed in the first position within the guarantee strip (17) and have a C shape. 4. Closure cap according to claim 2 or 3, characterized in that the at least one second retaining band (21a, 21b) is formed in the first position within the guarantee band (17) and has a C-shape. 5. Closure cap according to one of Claims 2 to 4, characterized in that the first retaining straps (19a, 19b) and the at least one second retaining strap (21a, 21b) interact in such a way that they latch in the second position, as a result of which the threaded part (15 ) is fixed when the first and the at least one second tether (21a, 21b) are in the second position. 6. Closure cap according to one of Claims 2 to 5, characterized in that the first retaining straps (19a, 19b) and the at least one second retaining strap (21a, 21b) form a snap joint in that, in the second position, the at least one second retaining strap (21a , 21b) is bent and the first two straps (19a, 19b) are stretched. 7. Closure cap according to one of the preceding claims, characterized in that there are two second retaining straps (21a, 21b). 8. Closure cap according to one of the preceding claims, characterized in that the first and second retaining straps (19a, 19b, 21a, 21b) are made from the guarantee strip (17) by cuts (57,59,61,63,65) on the guarantee strip (17). 17) are trained. 9. Closure cap according to one of the preceding claims, characterized in that in the first position the second retaining straps (21a, 21b) are separated from the first retaining straps (19a, 19b) by a first cut (57a, 57b). 10. Closure cap according to one of Claims 7 to 9, characterized in that a web (67) is formed on the anti-tamper strip between the second retaining straps (21a, 21b). 11. Closure cap according to one of the preceding claims, characterized in that the first and second retaining straps (19a, 19b, 21a, 21b) each have a first and second leg (49a, 49b, 51a, 51b), the first and second legs (49a,49b,51a,51b) are connected to each other by an arch (53a,53b,55a,55b) and the first branches (49a, 51a) have first ends (41a, 41b, 45a, 45b) which are fixed to the open edge (27) of the threaded part (15), and the second branches (49b, 51b) have second ends ( 43a, 43b, 47a, 47b) which are firmly connected to the guarantee strip (17). 12. Closure cap according to claim 11, characterized in that the first and second legs (49a, 49b, 51a, 51b) are separated from each other in the first position by a second cut (59a, 59b, 61a, 61b). 13. Closure cap according to one of claims 11 or 12, characterized in that the arches (53a, 53b) of the first retaining straps (19a, 19b) or the arches (55a, 55b) of the second retaining straps (21a, 21b) in the first Position facing each other. 14. Closure cap according to one of the preceding claims, characterized in that the first retaining straps (19a, 19b) are each separated from the guarantee strip (17) by a third cut (63a, 63b). 15. Closure cap according to one of the preceding claims, characterized in that the second retaining straps (21a, 21b) are each separated from the guarantee strip (17) by a fourth cut (65a, 65b). 16. Closure cap according to claim 15, characterized in that the first and fourth cuts (57a, 57b, 65a, 65b) are C-shaped. 17. Closure cap according to one of claims 14 to 16, characterized in that the second cuts (59a, 59b) of the first retaining straps (19a, 19b) and the third cuts (63a, 63b) are connected to one another. 18. Closure cap according to one of claims 12 to 17, characterized in that the first cuts (57a, 57b) and the second cuts (61a, 61b) of the second retaining straps (21a, 21b) are connected to one another. 19. Closure cap according to one of the preceding claims, characterized in that a plurality of projections (39) are formed on the inside of the anti-tamper strip (17) and the first and second retaining strips (19a, 19b, 21a, 21b) above the projections (39 ) are formed from the guarantee band (17). 20. Container (13) having - a container body (31), - a container neck (33) adjoining the container body, - an external thread (35) formed on the container neck (33), and - a closure cap (11) for closing a pouring opening (37) provided in the container neck (33), the closure cap (11) having - a cylindrical threaded part (15) with an open edge (27) and an internal thread (29) which cooperates with the external thread (35) of the container neck (33). , - a guarantee strip (17), which is held on a projection formed on the container neck (33) and - a holding device (19,21) with a first and a second end (41,43,45,47), the first end (41,45) is firmly connected to the open edge (27) of the threaded part (15) and the second end (43,47) is firmly connected to the guarantee strip (17), characterized in that the closure cap is a closure cap (11) according to any one of claims 1 to 19. 4 sheets of drawings