CONTAINER CAP

Description

Field of invention

[0001] The invention relates to a container closure for closing a container according to the preamble of claim 1 and to a container with such a container closure according to the preamble of claim 14. State of the art

[0002] In the prior art of plastic container closures with a tamper-evident ring, closures are known which are captive and seal the container's pouring opening. Closures are also known which have two retaining straps connecting a threaded portion of the closure to a tamper-evident ring. These two retaining straps can act as a hinge, allowing the threaded portion to be folded away from the tamper-evident ring and thus from the container to be sealed.

[0003] Such a container closure is known from EP 2 308 772 A1. The retaining straps are C-shaped and each has a weakening at its center of curvature where the retaining strap can be bent. This allows the retaining straps to act together as a hinge for the threaded part. A protruding piece is formed at the open edge of the threaded part, which projects downwards. In the open position of the threaded part, the protruding piece comes into contact with the retaining ring of the container neck, which holds the tamper-evident ring to the container neck. The protruding piece holds the threaded part in the open position and prevents it from being an obstruction when pouring out a product contained in the container. However, when drinking from the bottle onto which the container closure is attached, the threaded part is an obstruction, as it gets in the way of the user.

[0004] US Patent 2018 / 0370701 A1 discloses a container closure which also features two retaining bands. However, the ends of the retaining bands are connected alternately to the tamper-evident ring and the open edge of the threaded portion. This provides the threaded portion with some stability when held against the bottle neck in the open position. The threaded portion can rest against the bottle neck with either its top surface or its cylindrical side wall. However, with this captive container closure design, the threaded portion is even closer to the bottle neck in the open position than in the previous design and therefore proves to be quite bothersome when drinking from the bottle.US Patent 2019 / 0344944 discloses a container closure with a screw cap and a tamper-evident ring according to the preamble of claim 1, wherein the cap and the ring are held together by two retaining bands after the cap has been unscrewed from a container. In addition to the two retaining bands, a first tab may also be cut out of the ring. This creates a second tab on the retaining ring between the recess formed by cutting out the first tab and the depression in which one of the retaining bands lies. When the cap is held in an open position by the two retaining bands on the tamper-evident ring, the outer surfaces of the first and second tabs lie against each other. Object of the invention

[0005] It is therefore an object of the present invention to propose a container closure which does not have the aforementioned disadvantages; that is, it allows the user to drink from the container or bottle as freely as possible. Description

[0006] The problem is solved in a container closure for sealing a container by the features listed in the characterizing section of claim 1. Further developments and / or advantageous embodiments are the subject of the dependent claims.

[0007] In the open position, the first tongue end makes contact with the second tongue end, and the two tongues lock together, securing the screw cap in the open position. The first and second tongues interact in a surprising way with the specially arranged retaining straps. The sequential arrangement of the first, second, third, and fourth ends, and the precisely calibrated length of the retaining straps, ensure that the first and second tongues align when the screw cap is unscrewed. Because the first and second tongues are positioned directly next to each other, only a slight pivoting of the tongues relative to each other is necessary for them to overlap. Since the tongues overlap, they can lock together in the open position, securing the screw cap in this position.

[0008] The invention is characterized in that the second tongue end is designed as a projection on the edge of the tamper-evident ring facing the screw cap, and the projection is a radially outwardly projecting step. This allows the first tongue end to engage with the second tongue end in the open position of the screw cap and to lock securely into place at the transition between the step and the second tongue in the open position. It is also conceivable that the projection is oriented obliquely downwards towards the container to enhance the holding effect of the screw cap.

[0009] It has proven advantageous for the extension to have a height between 1 and 4 mm, and preferably between 2 and 3 mm. This height is sufficient to hold the screw cap stably in the open position and prevent the first tongue end from jumping over the extension. On the other hand, the height is not so great that the first and second retaining bands would have to be overstretched to pull the first tongue end over the extension. It is advantageous for the first tongue to be bent as it is pulled over the extension and then snap into place below the step on the second tongue.

[0010] In a further particularly preferred embodiment of the invention, the first tongue abuts the second end or the third end, and the second tongue abuts the second or third end, depending on the position of the first tongue. This allows the two tongues to connect directly to the second and third ends. Combined with the direct arrangement of the first and second tongues side by side, this enables the first tongue to rotate circumferentially when the screw cap is unscrewed, thereby bringing the two tongues into alignment.

[0011] In a further particularly preferred embodiment of the invention, the first tongue is received in a first recess provided on the tamper-evident ring when in the closed position. This allows the first tongue to be as long as possible without increasing the height of the tamper-evident ring. The long first tongue also makes it possible to position the screw cap as far away from the container neck as possible when open. This ensures that the screw cap does not obstruct the user when drinking from the container.

[0012] Advantageously, a reinforcing section is formed below the first notch on the tamper-evident ring. Since the first notch inevitably weakens the tamper-evident ring, the area of ​​the ring below it is reinforced. For example, the tamper-evident ring may have a greater thickness at this point. This reinforcement ensures that the tamper-evident ring remains sufficiently stable despite the first notch, especially when the container closure is forced onto the container neck and the screw cap is unscrewed for the first time.

[0013] Preferably, the length of the first tongue is between 70 and 90% of the height of the warranty ring, and preferably between 75 and 85% of the height of the warranty ring. This dimensioning ensures that the first tongue is as long as possible without the height of the warranty ring deviating from the standard height of a conventional warranty ring.

[0014] In a preferred embodiment of the invention, the length of the first and second retaining bands is dimensioned such that the first and second tongues are brought into alignment when the screw cap is moved into the open position. As explained above, the precisely dimensioned length of the retaining bands, in combination with the specific arrangement of the tongues and the retaining bands relative to each other, results in the alignment of the two tongues. This is particularly advantageous because the rotation of the tongues relative to each other occurs automatically when the screw cap is unscrewed, which in turn leads to particularly easy handling of the container closure.

[0015] It is preferable for the break-off tabs to be arranged at regular intervals along the open edge. This ensures the tamper-evident ring is held securely to the screw cap, allowing the container closure to be forced onto the container neck. The consistent spacing of the break-off tabs also allows the screw cap to be unscrewed with a uniform force.

[0016] Advantageously, a second and third recess are provided on the edge of the guarantor ring facing the first and second retaining bands to accommodate them. This allows the first and second retaining bands to be formed from the guarantor ring in a space-saving manner and without additional material. For example, the first and second retaining bands can be cut out of the guarantor ring or formed during the manufacturing process of the container closure. Furthermore, the height of the guarantor ring is not increased by providing the retaining bands, and no additional material is required.

[0017] In a further preferred embodiment of the invention, the second and fourth ends enclose an opening angle of at least 60 degrees and at most 90 degrees, and preferably at least 70 degrees and at most 80 degrees, with respect to the center point of the screw cap as the apex. This ensures that the first and second retaining straps have precisely the length required for the functions described above, in particular for covering the first and second tongues when unscrewing.

[0018] It has proven advantageous to have an inwardly projecting inner cone, for example in the form of a sealing cylinder or a sealing ring, molded onto the cap disc. This cone is designed to seal against the inner wall of the container neck when closed. The container cap can therefore act as a so-called "cone sealer" and reliably seals the bottle neck.

[0019] In a further preferred embodiment of the invention, the first and second retaining bands have a width between 3 mm and 7 mm, and preferably a width between 4 mm and 5 mm. This dimension prevents the retaining bands from tearing unintentionally, particularly if the predetermined breaking points are damaged. Furthermore, the tamper-evident ring is not too high and can be sealed with standardized externally threaded container necks.

[0020] The invention is also characterized in that the container closure is designed to interact with a standardized container neck with an external thread and retaining ring. The container closure can therefore be fitted onto standardized container necks, particularly those of PET beverage bottles. Containers assembled with the container closure according to the invention therefore do not need to be specially adapted to the container closure.

[0021] Advantageously, the container closure is made of a plastic material, preferably HDPE (high-density polyethylene) or PP (polypropylene). The container closure can therefore be manufactured using standard plastic materials from which familiar container closures with a tamper-evident ring are also made.

[0022] In a further preferred embodiment of the invention, the screw cap, the tamper-evident ring, the retaining bands, the break-off tabs, and the first and second tongues are manufactured in one piece. This allows the container closure to be produced in a single injection mold without the need for further processing steps to form the first and second retaining bands and the first and second tongues. Preferably, the inner cone is also manufactured in one piece together with the other parts of the container closure.

[0023] In a particularly preferred embodiment of the invention, the guarantor ring has slots distributed around its circumference, each with an upper edge and a lower edge. The upper edge is formed by a circular arc-shaped section of the guarantor ring, and the lower edge is formed by a wall section inclined radially inwards. The lower edge of each slot forms the projections, thereby creating engagement means for a positive-locking engagement with the retaining ring. Since the engagement means, in the form of the inwardly inclined wall sections, are not present on the entire circumference of the guarantor ring, and since the slots are also present, the shape of which further reduces material usage, the plastic material requirement can be significantly reduced by up to 5%.Furthermore, the inward wall section is immovable in the radial direction, thus holding the tamper-evident ring to the retaining ring and preventing it from being pulled over the retaining ring until it is stretched along its circumference. The wall sections hold the tamper-evident ring so firmly to the retaining ring that the predetermined breaking points will reliably tear before the wall sections' retention is overcome. However, the wall sections are flexible and movable in the outward radial direction. This allows the wall sections to be demolded from the injection mold with minimal effort. For the same reason, the application force required to snap the container closure onto the mold is significantly reduced compared to prior art. Stretching of the tamper-evident ring, which could lead to permanent damage to the container closure, is largely prevented during demolding and snapping.

[0024] In a further preferred embodiment, a projection is formed on the guarantor ring below the first and second recesses. This ensures that the guarantor ring is reliably held against the retaining ring in the area of ​​the retaining straps and tongues. This is particularly important when the screw cap is unscrewed and pivoted into the open position.

[0025] Another aspect of the invention relates to a container comprising a container body, a container neck adjoining the container body, an external thread formed on the container neck and a container closure according to the description above.

[0026] In a preferred embodiment of the invention, a support ring is formed at the transition from the container neck to the container body, and the screw cap, in the open position, is in contact with the second tongue and the support ring. The additional contact at the support ring in the open position makes the holder more stable, as there are two contact points. Furthermore, the screw cap is opened to its maximum extent.

[0027] Further advantages and features will become apparent from the following description of three exemplary embodiments of the invention with reference to the schematic diagrams. These are shown in a representation not to scale: Figure 1: A side view of a container closure in a closed position; Figure 2: An axonometric bottom view of the container closure from Figure 1; Figure 3: An axonometric view of the container closure from Figure 1 Figure 1fitted onto the neck of a container; Figure 4: a side view of the container closure, in which the screw cap has been unscrewed from the container neck. Figure 5: an axonometric view of the container closure made of Figure 4 Figure 6: a side view of the container closure with the screw cap in an open position; Figure 7: an axonometric view of the container closure with the screw cap in the open position; Figure 8: an axonometric view of the container closure placed on the container neck with the screw cap in the open position; Figure 9: a detail view of the tamper-evident ring; and Figure 10: a sectional view of the tamper-evident ring. Figure 9 with visualized tilt angles.

[0028] In the Figures 1 to 8A container closure is shown, which is collectively designated by reference numeral 11. The container closure 11 is captive and attached to a container 13, in particular a bottle 13. The container 13 is indicated in Figures 3 to 6 and 8. The container closure 11 comprises a screw cap 15, a tamper-evident ring 17, and a first and a second retaining band 19a, 19b.

[0029] The screw cap 15 comprises a cover disc 21 and a first cylindrical shell 23 with a free rim 25. An internal thread 27 is formed on the inside of the shell 23. The container 13 comprises a container body 28 and a container neck 29 adjoining the container body 28. The container neck 29 is designed as a second cylindrical shell. An external thread 31 is formed on the container neck 29, which engages with the internal thread 27. This allows the screw cap 15 to be screwed onto and off the container neck 29. The container closure 11 closes the pouring opening 33, which is provided within the container neck 29. The container closure 11 is designed to engage with a standardized container neck 29 with an external thread 31 and a retaining ring 35.

[0030] The guarantee ring 17 is positively engaged with the container neck 13. For this purpose, a retaining ring 35 is formed on the outside of the container neck 29, which can be engaged by projections 37 formed on the inside of the guarantee ring 17 ( Figures 9 and 10 The guarantee ring 17 is rotatable relative to the container neck 29.

[0031] The first arm 19a has a first end 39 and a second end 41. The first end 39 is firmly connected to the free edge 25. The second end 41 is firmly connected to the guarantor ring 17. This ensures that the container closure 11 is permanently attached to the container 13.

[0032] The second arm 19b has a third end 51 and a fourth end 53. The third end 51 is firmly connected to the free rim 25. The fourth end 53 is firmly connected to the guarantor ring 17. This ensures that the container closure 11 is additionally and irrevocably held to the container 13.

[0033] The tamper-evident ring 17 is held at its free edge 25 by a plurality of predetermined breaking points 63, which break when the screw cap 15 is unscrewed from the container neck 29. The predetermined breaking points 63 are preferably arranged at regular intervals on the tamper-evident ring 17.

[0034] It is preferred that the first and second arms 19a, 19b have a width between 4 mm and 5 mm, or have a width which corresponds to at least 15% of the height of the guarantee ring, so that they are sufficiently stable.

[0035] The screw cap 15 is located according to the Figures 1 to 3 in a closed position, in which it is pressed or screwed onto the container neck 29. When unscrewed from the container neck 29, the first and second retaining bands 19a, 19b are pulled upwards in an axial direction. The retaining bands are also elastically stretchable so that the screw cap 15 can be unscrewed from the container neck 29 and folded away.

[0036] The guarantee ring 17 has a second and a third recess 65, 67. The first and second retaining bands 19a, 19b are accommodated in the first and second recesses 65 and 67, respectively. This makes it possible to machine the first and second retaining bands 19a, 19b directly out of the guarantee ring 17, for example by cutting them out.

[0037] The first, second, third, and fourth ends 39, 41, 51, 53 are arranged successively in the direction of rotation at the free edge 25 and at the guarantor ring 17, respectively. Between the second end 41 of the first retaining band 19a and the third end 51 of the second retaining band 19b, a first tongue 43 with a first tongue end 45 and a second tongue 47 with a second tongue end 49 are arranged. The first tongue 43 is formed at the free edge 25 as an extension of the sleeve 23. The second tongue 47 is part of the guarantor ring 17. The first and second tongues 43, 47 preferably abut each other directly. Furthermore, the first and second tongues 43, 47 preferably abut directly the second end 41 and the third end 51, respectively. The second tongue end can be formed as a projection, in particular as a radially outwardly projecting step 55, as shown in the Figures 5 , 7 and 8The step has a height of preferably 2 to 3 mm. A first recess 57 is provided on the guarantor ring 17, in which the first tongue 43 is received in the closed position. This allows the first tongue 43 to be as long as possible. This, in turn, has the advantage that the screw cap 15 is located far from the container neck 29 in the open position and does not interfere with the user when drinking from the container. Preferably, the first tongue 43 has a length of 75 to 85% of the height of the guarantor ring 17.

[0038] Since the first recess 57 weakens the guarantor ring 17, the ring is reinforced below the first recess 57. The reinforcement section 59 is achieved by increasing the wall thickness of the guarantor ring 17 below the first recess 57. Preferably, the wall thickness of the reinforcement section 59 is between 2 and 3 mm. The provision of the reinforcement section makes the guarantor ring 17 sufficiently stable to be pressed onto the container neck 29.

[0039] When the screw cap 15 is moved from its unscrewed position to its open position, the first and second retaining bands 19a, 19b act as a hinge around which the screw cap 15 can be folded into the open position. The first and second retaining bands 19a, 19b are dimensioned such that the first tongue end 45 is drawn against the step 55 and into the step corner in the open position. In the open position, the first and second retaining bands 19a, 19b are preferably under tension or elastically stretched. The sleeve 23 can also be in contact with the support ring 72 of the container 13 in the open position, which is formed at the transition between the container neck 29 and the container body 28.

[0040] The arrangement of the ends of the retaining straps 19a, 19b, i.e., that in the circumferential direction the first end 39 is followed by the second end 41, the third end 51, and the fourth end 53, and the first and second retaining straps 19a, 19b are of a specific length, has the advantage that when the screw cap 15 is unscrewed from the container neck 29, the first tongue 43 and the second tongue 47, or rather their tongue ends 45, 49, are brought into alignment. The tongues 43, 47 can therefore be automatically transformed from an arrangement in which they are arranged side by side to an arrangement in which the tongue ends 45, 49 overlap by rotating the screw cap 15.

[0041] Since the container closure 11 is rotationally symmetrical, it has a center point 73. The center point 73 lies in the imaginary plane between the free edge 25 and the guarantor ring 17. The second end 41 and the fourth end 53 enclose an opening angle 75 of at least 60 degrees and at most 90 degrees, and preferably at least 70 degrees and at most 80 degrees, with respect to the center point 73 as the vertex.

[0042] When the container closure 11 is pressed onto the container neck 29, the pouring opening 33 is closed by the container closure 11 and the container closure 11 is in the closed position. When the screw cap 15 is unscrewed from the container neck 29, the predetermined breaking points 63 break. The tamper-evident ring 17 rotates with the screw cap 15. During unscrewing, the first and second retaining bands 19a, 19b can straighten and the first and second tongues 43, 47 are displaced relative to each other.

[0043] As described above, after unscrewing the screw cap 15 from the container neck 29, it is folded into the open position by the first tongue end 45 engaging with the step 55. The opening angle 75 is chosen so that the first and second retaining bands 19a, 19b are of a length that allows the screw cap 15 to be unscrewed from the container neck 29 and the tongues 43, 47 to be rotated relative to each other. The length of the first and second retaining bands 19a, 19b must be precisely matched. If the length of the retaining bands is too long, the first tongue end 45 will not be held securely enough against the step 55. If the length of the retaining bands is too short, the screw cap 15 will snap back from the open position and obstruct the pouring of contents from the pouring opening 33.

[0044] In the open position, the screw cap 15 is captive and securely held on the container 13. It is fixed to the container neck 29 in such a way that it does not protrude into the pouring opening 33 when liquid is poured from the container 13. The first and second retaining bands 19a and 19b allow the screw cap 15 to be moved into the open position in a guided, hinged motion after being unscrewed from the container neck 29. Due to the guided movement and the step 55, there is only one open position, not multiple. The length and cross-section of the first and second retaining bands 19a and 19b, respectively, are preferably dimensioned such that they are elastically tensioned in the open position of the screw cap 15. This pulls the screw cap 15 against the container neck 29 and the step 55 in the open position, holding it securely and without wobbling.The elastic pretension of the first and second retaining bands 19a, 19b also allows the screw cap to be moved repeatedly from the open position to the closed position and vice versa. This allows the container neck 29 to be opened and closed multiple times, and the screw cap 15 is held stably and without wobble in the open position each time after opening.

[0045] The projections 37 can be described according to the following figure description of the Figures 9 and 10This embodiment of the projections 37 is the subject of Swiss patent applications 01467 / 19 and 01695 / 19, the priorities of which have been claimed and whose disclosures are hereby incorporated into the present patent application. Slots 97 are provided on the guarantee ring 17, distributed around its circumference. Each slot 97 has an upper edge 99 and a lower edge 101. The upper edge 99 is formed by a circular arc section of the guarantee ring 17. The lower edge 101 corresponds to the free edge of a wall section 103 inclined inwards in a radial direction. Due to the inward inclination of the wall section 103, the lower edge 101 has a smaller radius than the guarantee ring 17 and can therefore abut a support (retaining ring 35) of the container neck 29 when the screw cap 15 is unscrewed from the container neck 29.The abutment is realized by the retaining ring 35, which is formed below the external thread 31 on the container neck 29. When the screw cap 15 is unscrewed, the lower edge 99 engages positively with the retaining ring 35, thereby reliably holding the guarantor ring 17 on the retaining ring 35 even under high axial forces.

[0046] Each wall section 101 has a first subsection 105 and two second subsections 107. The first subsection 105 represents an inwardly folded shell section and is preferably flat. The second subsections 107 adjoin the inwardly facing sides of the first subsection 105 and connect it to the guarantor ring 17. The second subsections 107 can be curved or flat and are inclined inwards towards each other. The lower edge 101 of the slot 97 corresponds to the free edges of the first subsection 105 and the second subsections 107 and lies in a plane 109, which is Figure 10The plane 109 is preferably oriented perpendicular to the axis of rotation 110 of the container neck 29. These described design features of the wall section 103 have the advantage that the entire lower edge 101 of the wall section 103 can rest against the retaining ring 35 and does not yield under an upward axial tensile force, acting like a barb. This ensures that the tamper-evident ring 17 is held permanently to the retaining ring 35 and can only be removed by destroying it. The provision of the second sections 107 prevents inward movement of the first section 105 in a radial direction. However, outward movement of the first section 105 in a radial direction is possible. This movement is flexible, and the wall section 103 returns to its inwardly inclined initial position after being pushed radially outward.This has the further advantage that the guarantor ring 17 can be easily demolded and, together with the screw cap 15, can be pressed onto the container neck 29 with little force. The demolding from an injection mold and the pressing onto the container neck 29 can be carried out by the flexibility of the wall section 103 without any risk of damaging the wall section 103.

[0047] It is preferred that the inclined wall sections 103 have a reduced wall thickness compared to the rest of the guarantee ring 17. In the Figure 10 It has been shown that the area of ​​the lower edge 101 has the smallest wall thickness. This further improves the radial outward flexibility of the wall section 103 described above. The wall thickness of the wall section 103 increases linearly downwards from the lower edge 101.

[0048] In the Figures 9 and 10 The guarantee ring 17 is shown without the screw cap 15. In the Figures 9 and 10It is clearly visible that above the slots 97 on the guarantee ring 17 a ring ridge 111 is formed, on which the upper edges 99 lie.

[0049] In the Figure 10 A first and second inclination angle 113, 115 are shown. The first inclination angle 113 indicates the inclination of the first section 105 relative to the plane of the lower edge 101. The first inclination angle 113 has a magnitude between 60 and 80 degrees, preferably between 65 and 75 degrees. The larger the first inclination angle 113, the better the stability of the wall sections 103 against vertical forces or axial tensile forces caused by unscrewing the screw cap 15. However, the first inclination angle 113 must not be too large, otherwise the retaining ring 35 cannot be sufficiently engaged.

[0050] The second angle of inclination 115 specifies the inclination of the slot 97 relative to the plane of the lower edge 111. The connecting line 117, which represents the inclination of the slot 97, is a line connecting the upper edge 99 with the lower edge 101 in a plane spanned by the axis of rotation 110 and the connecting line 117. The second angle of inclination 115 is enclosed by the connecting line 117 and the plane 109. The second angle of inclination 115 has a magnitude between 30 and 50 degrees, and preferably between 35 and 45 degrees. The larger the second angle of inclination 115, the easier it is to demold the guarantor ring 17.

[0051] At the base 21 of the screw cap 15, there is preferably an inwardly projecting internal cone 87 ( Figure 4), e.g. in the form of a sealing cylinder or a sealing ring. The inner cone 87 is designed to interact sealingly with the inner wall 89 of the container neck 29 in the closed position. The container closure 11 can therefore act as a so-called "cone sealer" and reliably seals the container neck 29.

[0052] The container closure 11 is made of a plastic. PP and HDPE are among the preferred plastics. Legend:

[0053] 11 Container closure 13 Container, bottle 15 Screw cap 17 Guarantee ring 19a First retaining band 19b Second retaining band 21 Screw cap cover disc 23 First cylindrical shell 25 Free rim 27 Internal thread 28 Container body 29 Container neck 31 External thread 33 Pouring opening 35 Retaining ring 37 Projections, engagement features 39 First end of first retaining band 41 Second end of first retaining band 43 First tongue 45 First tongue end 47 Second tongue 49 Second tongue end 51 Third end of second retaining band 53 Fourth end of second retaining band 55 Extension, step 57 First recess 59 Reinforcement section 63 Breakaway ribs 65 Second recess 67 Third recess 69 Web section 72 Support ring 73 Center of the container closure 75 Opening angle 87 Inner cone 89 Inner wall 97 Slots 99 Top edge 101 Bottom edge 103 Wall section 105 First sub-section 107 Second sub-sections 109 Plane 110 Axis of rotation 111 Ring bead 113 First inclination angle 115 Second inclination angle 117 Connecting line

Claims

1. Container closure (11) for closing the pour opening (33) of a container (13), having - a screw cap (15) with a free edge (25), a first cylindrical casing (23), a cover disk (21) and an inner thread (27) which is formed on the inside of the casing (23) and can interact with an outer thread (31) of a container neck (29) of the container (13), - a security ring (17) designed to be held on a first protrusion, in particular a holding ring (35), molded on the container neck (29), - a plurality of break-off webs (63) which releasably connect the security ring (17) to the free edge (25), - a first holding strip (19a) with a first and a second end (39, 41), wherein the first end (39) is fixedly connected to the free edge (25) of the screw cap (15), and the second end (41) is fixedly connected to the security ring (17), and - a second holding strip (19b) with a third and a fourth end (51, 53), wherein the third end (51) is fixedly connected to the free edge (25) of the screw cap (15), and the fourth end (53) is fixedly connected to the security ring (17), wherein a first tongue (43) with a first tongue end (45) is formed between the first and second holding strips (19a, 19b) on the free edge (17) in continuation of the casing (23), and the screw cap (15) can be folded from a closed position, in which it closes the pour opening (33), into an open position, in which it fully opens the pour opening (33), and vice versa, wherin the first, second, third and fourth ends (39, 41, 51, 53) are arranged one after the other in the circumferential direction on the free edge (25) and on the security ring (17), and the first tongue (43) and a second tongue (47) that has a second tongue end (49) and is adjacent to the first tongue (43) are arranged between the second and the third end (41, 51), wherein the second tongue (47) is part of the security ring (17) and in the open position, the first tongue end (45) comes into contact with the second tongue end (49). characterized in that the second tongue end (49) is formed as an extension (55) on the edge of the security ring (17) facing the screw cap (15)and that the extension is a radially outward protruding step (55).

2. Container closure to claim 1, characterized in that the extension (55) has a height between 1 and 4 mm, and preferably between 2 and 3 mm.

3. Container closure according to claim 1 or 2, characterized in that the first tongue (43) is adjacent to the second end (41) or the third end (51), and the second tongue (47) is adjacent to the second or third end (41, 43) depending on the position of the first tongue (43).

4. Container closure according to any one of the preceding claims, characterized in that in the closed position, the first tongue (43) is received in a first recess (57) provided on the security ring (17).

5. Container closure according to Claim 4, characterized in that a reinforcement section (59) is formed below the first recess (57) on the security ring (17).

6. Container closure according to any one of the preceding claims, characterized in that the length of the first tongue (43) is between 70 and 90% of the height of the security ring (17) and preferably between 75 and 85% of the height of the security ring.

7. Container closure according to any one of the preceding claims, characterized in that the length of the first and second holding strips (19a, 19b) is dimensioned in such a way that the first and the second tongues (43, 47) are brought into alignment when the screw cap (15) is transferred into the open position.

8. Container closure according to any one of the preceding claims, characterized in that a second and third recess (65, 67) for receiving the first and second holding strips (19a, 19b) is provided on the edge of the security ring (17) facing the first and second holding strips (19a, 19b).

9. Container closure according to any one of the preceding claims, characterized in that the second and fourth ends (41, 53) enclose an opening angle (75) of at least 60 degrees and at most 90 degrees, and preferably of at least 70 and at most 80 degrees, with respect to the center point (73) of the screw cap (15) as the apex.

10. Container closure according to any one of the preceding claims, characterized in that the first and second holding strips (19a, 19b) have a width between 3 mm and 7 mm, and preferably a width between 4 mm and 5 mm.

11. Container closure according to any one of the preceding claims, characterized in that the container closure (11) is designed to interact with a standardized container neck (29) with an outer thread (31) and a holding ring (35).

12. Container closure according to any one of the preceding claims, characterized in that the screw cap (15), the security ring (17), the first and second holding strips (19a, 19b), the break-off webs (64), and the first and second tongues (43, 47) are produced in one piece.

13. Container closure according to any one of claims 8 to 12, characterized in that a protrusion (37) is in each case formed on the security ring (17) below the second and third recesses (65, 67).

14. Container (13) having - a container body (28), - a container neck (29) adjoining the container body (28), - an outer thread (31) formed on the container neck (29), and - a container closure (11) according to one of the preceding claims.

15. Container according to Claim 14, characterized in that a support ring (72) is formed at the transition from the container neck (29) to the container body (28), and in the open position, the screw cap (15) is in contact with the second tongue (47) and the support ring (72).