CH716857A2 - Container closure. - Google Patents

Abstract

The invention relates to a container closure (11) for closing the pouring opening (33) of a container (13), comprising a screw cap (15) with a free edge (25) and a guarantee ring (17) which is attached to the free edge via predetermined breaking webs (63) (25) of the jacket (15) is connected and has engagement means (37), a first retaining strap (19a) with a first and a second end (39,41) wherein the first end (39) with the free edge (25) of the Screw cap (15) is firmly connected and the second end (41) is firmly connected to the guarantee ring (17) and a second retaining strap (19b) with a third and a fourth arm end (51,53), the third end (51) is firmly connected to the free edge (25) of the screw cap (15) and the fourth end (53) is firmly connected to the guarantee ring (17). 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) or on the guarantee ring (17). A first tongue (43) with a first tongue end (45) and a second tongue (47) adjoining the first tongue (43) with a second tongue end are arranged between the second and the third end (41,51). 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).

Description

Field of invention

The invention relates to a container closure for closing a container according to the preamble of claim 1 and a container with such a container closure according to the preamble of claim 19.

State of the art

From the prior art in the field of plastic closure caps with a guarantee ring, closure caps are known which are held captive on the container and close its pouring opening. Such closure caps are also known which have two retaining straps which connect a threaded part of the closure cap to a security ring of the closure cap. The two retaining straps can act as a hinge around which the threaded part can be folded away from the guarantee ring or from the container to be closed.

Such a closure cap is known from EP 2 308 772 A1. The retaining straps are C-shaped and each have a weakening at their center of curvature at which the retaining strap can be bent. As a result, the retaining straps act together as a hinge for the threaded part. At the open edge of the threaded part, a protruding piece is formed which protrudes downward. In the unfolded position of the threaded part, the protruding piece comes into contact with the retaining ring of the container neck, which retaining ring holds the guarantee ring on the container neck. The protruding piece holds the threaded part in the unfolded position and prevents the threaded part from being an obstacle when a product contained in the container is poured out. When drinking from the bottle on which the closure cap is placed, however, the threaded part is a hindrance because it is in the way of the user.

In US 2018/0370701 A1 a closure cap is disclosed which also has two retaining straps. However, the ends of the retaining straps are alternately connected to the guarantee ring and the open edge of the threaded part, i.e. the ends of the retaining straps which are connected to the open edge of the threaded part and to the guarantee ring alternate. This gives the threaded part a certain stability when it is held in the open position on the bottle neck. The threaded part can rest against the bottle neck with its upper side or its cylindrical side wall. With this solution of a captive closure cap, however, the threaded part in the open position is even closer to the container neck than with the above solution and consequently proves to be very annoying when drinking from the bottle.

Object of the invention

It is therefore the object of the present invention to propose a container closure which does not have the above disadvantages; it therefore enables the user to drink from the container or bottle as unhindered as possible.

description

The object set is achieved in a container closure for closing a container by the features cited in the characterizing section of claim 1. Further developments and / or advantageous design variants are the subject of the dependent claims.

The invention is characterized in that the first, second, third and fourth ends are arranged successively in the circumferential direction on the free edge or on the guarantee ring and that between the second and the third end, the first tongue and one to the The second tongue adjoining the first tongue are arranged with a second tongue end, the second tongue being part of the guarantee ring and, in the open position, the first tongue end coming into contact with the second tongue end. The first and second tongues interact in a surprising manner with the specially arranged retaining straps. The successive arrangement of the first, second, third and fourth ends and the precisely coordinated length of the retaining straps enable the first and second tongues to be brought into congruence when the screw cap is screwed on. Because the first and second tongues are arranged directly next to one another, only a small pivoting of the tongues relative to one another is necessary so that they overlap. Since the tongues overlap, they can lock together in the open position and fix the screw cap in the open position.

In a preferred embodiment of the invention, the second tongue end is designed as an extension on the edge of the guarantee ring facing the screw cap. As a result, the first tongue end can latch onto the second tongue end in the open position of the screw cap.

It has proven to be useful if the extension is a radially outwardly protruding step. As a result, the first tongue end can latch in a stable manner at the transition from the extension to the second tongue in the open position. It is also conceivable that the extension is oriented obliquely downwards in the direction of the container in order to strengthen the holding effect of the screw cap.

It has proven to be advantageous if the extension has a height between 1 and 4 mm and preferably between 2 and 3 mm. This height is sufficient to keep the screw cap stable in the open position and so that the first tongue end does not jump over the extension. On the other hand, the height is not too high, so that the first and second retaining straps would have to be overstretched in order to pull the first tongue end over the extension. The first tongue can advantageously be bent when it is pulled over the extension and then snaps into place below the step on the second tongue.

In a further particularly preferred embodiment of the invention, the first tongue adjoins the second end or the third end and the second tongue adjoins the second or third end depending on the position of the first tongue. As a result, the two tongues connect directly to the second and third ends. In combination with the direct arrangement of the first and second tongues next to one another, a rotation of the first tongue in the circumferential direction is made possible when the screw cap is unscrewed, whereby the two tongues are brought into congruence.

In a further particularly preferred embodiment of the invention, the first tongue is received in the closed position in a first recess provided on the guarantee ring. As a result, the first tongue can be made as long as possible without the guarantee ring having to be increased in height. The long first tongue makes it possible to arrange the screw cap in the open position as far away as possible from the container neck. As a result, the screw cap is not in the way of the user when drinking from the container.

A reinforcing section is expediently formed below the first recess on the guarantee ring. Since the first recess inevitably represents a weakening of the guarantee ring, the area of the guarantee ring below the first recess is reinforced. For example, the guarantee ring can have an increased thickness towards the outside at this point. The reinforcement ensures that the guarantee ring is sufficiently stable despite the first recess, in particular when the container closure is bounced onto the container neck and the screw cap is unscrewed from the container neck for the first time.

It is preferred if the length of the first tongue is between 70 and 90% of the height of the guarantee ring and preferably between 75 and 85% of the height of the guarantee ring. This dimensioning means that the first tongue is as long as possible without the height of the guarantee ring deviating from the standard height of a conventional guarantee ring.

In a preferred embodiment of the invention, the length of the first and the second retaining strap is dimensioned such that the first and the second tongue are brought into congruence when the screw cap is transferred into the open position. As already stated above, the precisely dimensioned length of the retaining straps in combination with the special arrangement of the tongues and the retaining straps with respect to one another leads to the two tongues being coincident. This is particularly advantageous since the tongues are rotated with respect to one another automatically when the screw cap is unscrewed, which in turn leads to particularly simple handling of the container closure.

It is preferred if the predetermined breaking webs are arranged at regular intervals along the open edge. The guarantee ring is therefore held in a sufficiently stable manner on the screw cap so that the container closure can be bounced onto the container neck. The screw cap can also be unscrewed with even force thanks to the even spacing of the predetermined breaking bars.

Conveniently, a second and third recess for receiving the first and second retaining band is provided on the edge of the guarantee ring facing the first and second retaining band. As a result, the first and second retaining straps can be formed from the guarantee ring in a space-saving manner and without additional material expenditure. For example, the first and second retaining straps can be cut out of the guarantee ring or shaped during the manufacturing process of the closure cap. Furthermore, the provision of the retaining straps does not increase the height of the guarantee ring and no additional material expenditure is necessary.

In a further preferred embodiment of the invention, the second and fourth ends include an opening angle 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 of the screw cap as the apex. As a result, the first and second retaining straps have exactly the length that leads to the functions described above, in particular to cover the first and second tongues when unscrewing.

It has proven to be expedient if an inwardly protruding inner cone, e.g. in the form of a sealing cylinder or a sealing ring, is formed on the cover disk and is designed to cooperate in a sealing manner with the inner wall of the container neck in the closed position. The closure cap can therefore act as a so-called "cone-sealer" and reliably seals the bottle neck.

In a further preferred embodiment of the invention, the first and second retaining straps have a width between 3 mm and 7 mm and preferably a width between 4 mm and 5 mm. This dimensioning ensures that the retaining straps do not tear off unintentionally, especially if the predetermined breaking webs are torn off. In addition, the guarantee ring is not too high and can be joined together to form a seal with standardized container necks with external threads.

The invention is also characterized in that the closure cap is designed to interact with a standardized container neck with an external thread and a retaining ring. The closure cap can therefore be placed on standardized container necks, in particular on PET beverage bottles. Containers which are assembled with the closure cap according to the invention therefore do not have to be specially adapted to the closure cap.

The closure cap is expediently made of a plastic material, preferably HDPE (high density polyethylene) or PP (polypropylene). The closure cap can therefore be produced with standard plastic materials, from which known closure caps with a guarantee ring are also produced.

In a further preferred embodiment of the invention, the screw cap, the guarantee ring, the retaining straps, the predetermined breaking webs and the first and second tongues are made in one piece. As a result, the container closure can be produced in an injection mold without the need for further processing steps in order to shape the first and second retaining straps and the first and second tongues. The inner cone is preferably also produced in one piece together with the other parts of the container closure.

In a particularly preferred embodiment of the invention, the guarantee ring distributed over the circumference arranged slots with an upper edge and a lower edge, wherein the upper edge is formed by a circular arc-shaped portion of the guarantee ring and the lower edge by a radially inwardly inclined Wall portion is formed and the lower edge of each slot forms the projections, whereby engagement means are formed for a positive engagement with the retaining ring. Since the engagement means in the form of the inwardly inclined wall sections are not completely present on the guarantee ring and there are also slots, the shape 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 be moved inward 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 ring is stretched along its circumference. The guarantee ring is held so tightly by the wall sections on the retaining ring that the predetermined breaking webs safely tear before the wall sections are secured. In the radial outward direction, however, the wall sections are flexible or movable. As a result, the wall sections can be removed from the injection mold or the injection molding tool with little effort. For the same reason, the application force for bouncing open the container closure is significantly reduced compared to the prior art. An expansion of the guarantee ring, which can lead to permanent damage to the container closure, is largely prevented during demolding and bouncing.

In a further preferred embodiment, a projection is formed on the guarantee ring below the first and second recess. As a result, the guarantee ring is reliably held on 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.

Another aspect of the invention relates to a container having 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.

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 is in contact with the second tongue and the support ring in the open position. The additional contact on the support ring in the open position makes the holder more stable because there are two support points. In addition, the screw cap is opened to the maximum.

Further advantages and features emerge from the following description of three exemplary embodiments of the invention with reference to the schematic representations. These show in a representation not true to scale: FIG. 1: a side view of a container closure which is in a closed position; FIG. 2: an axonometric view from below of the container closure from FIG. 1; FIG. 3: an axonometric view of the container closure from FIG. 1 placed on the neck of a container; FIG. 4: a side view of the container closure, in which the closure cap is unscrewed from the container neck. FIG. 5: an axonometric view of the container closure from FIG. 4; FIG. 6: a side view of the container closure with the screw cap in an open position; FIG. 7: an axonometric view of the container closure with the screw cap in the open position; FIG. 8: an axonometric view of the container closure placed on the container neck with the screw cap in the open position; FIG. 9: a detailed view of the guarantee ring and FIG. 10: a sectional view of the guarantee ring from FIG. 9 with visualized angles of inclination.

In FIGS. 1 to 8, a container closure is shown, which is designated as a whole by the reference numeral 11. The closure cap 11 is held captive on a container 13, in particular on a bottle 13. The container 13 is indicated in FIGS. 3 to 6 and 8. The closure cap 11 comprises a screw cap 15, a guarantee ring 17 and a first and a second retaining strap 19a, 19b.

The screw cap 15 comprises a cover plate 21 and a first cylindrical jacket 23 with a free edge 25. An internal thread 27 is formed on the inside of the jacket 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 jacket. An external thread 31, which cooperates with the internal thread 27, is formed on the container neck 29. As a result, the screw cap 15 can be screwed onto and unscrewed from the container neck 29. The closure cap 11 closes the pouring opening 33, which is provided inside the container neck 29. The closure cap 11 is designed to interact with a standardized container neck 29 with an external thread 31 and a retaining ring 35.

The guarantee ring 17 is held in a form-fitting manner on the container neck 13. For this purpose, a retaining ring 35 is formed on the outside of the container neck 29, which can be gripped under by projections 37 formed on the inside of the guarantee ring 17 (FIGS. 9 and 10). The guarantee ring 17 can be rotated relative to the container neck 29.

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 guarantee ring 17. As a result, the container closure 11 is held captive on the container 13.

The second arm 19b has a third end 51 and a fourth end 53. The third end 51 is firmly connected to the free edge 25. The fourth end 53 is firmly connected to the guarantee ring 17. As a result, the closure cap 11 is also held captive on the container 13.

The guarantee ring 17 is held on the free edge 25 with a plurality of predetermined breaking webs 63, which break when the screw cap 15 is unscrewed from the container neck 29. The predetermined breaking webs 63 are preferably arranged at regular intervals on the guarantee ring 17.

It is preferred if the first and the second arm 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.

According to FIGS. 1 to 3, the screw cap 15 is in a closed position in which it is bounced or screwed onto the container neck 29. When unscrewing from the container neck 29, the first and second retaining straps 19a, 19b are pulled upward in the axial direction. The retaining straps are also elastically stretchable so that the screw cap 15 can be unscrewed from the container neck 29 and folded away.

A second and a third recess 65, 67 are provided on the guarantee ring 17. The first and second retaining straps 19a, 19b are received in the first and second cutouts 65, 67, respectively. This makes it possible to work the first and second retaining straps 19a, 19b directly out of the guarantee ring 17, for example by cutting them out of the guarantee ring 17.

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 or on the guarantee ring 17. A first tongue 43 with a first tongue end 45 and a second tongue 47 with a second tongue end 49 are arranged between the second end 41 of the first tether 19a and the third end 51 of the second tether 19b. The first tongue 43 is formed on the free edge 25 as an extension of the jacket 23. The second tongue 47 is part of the guarantee ring 17. The first and second tongues 43, 47 preferably adjoin one another directly. Furthermore, the first and second tongues 43, 47 preferably directly adjoin the second end 41 and the third end 51, respectively. The second tongue end is designed as an extension, in particular as a step 55 protruding radially outward. The step has a height of preferably 2 to 3 mm. A first recess 57 is provided on the guarantee ring 17, in which the first tongue 43 is received in the closed position. As a result, the first tongue 43 can be made as long as possible. This in turn has the advantage that the screw cap 15 in the open position is far away from the container neck 29 and does not disturb the user when drinking from the container. The first tongue 43 preferably has a length of 75 to 85% of the height of the guarantee ring 17.

Since the first recess 57 represents a weakened area for the guarantee ring 17, it is reinforced below the first recess 57. The reinforcement section 59 is realized in that the wall thickness of the guarantee ring 17 below the first recess 57 is increased. The wall thickness of the reinforcement section 59 is preferably between 2 and 3 mm. By providing the reinforcement section, the guarantee ring 17 is sufficiently stable to be able to be bounced onto the container neck 29.

When moving the screw cap 15 from its unscrewed position into its open position, the first and second retaining straps 19a, 19b act as a hinge around which the screw cap 15 can be folded into the open position. The length of the first and second retaining straps 19a, 19b is such that the first tongue end 45 is pulled against the step 55 in the open position and is pulled into the corner of the step. In the open position, the first and second retaining straps 19a, 19b are preferably tensioned or elastically stretched. In the open position, the jacket 23 can also have contact with the support ring 72 of the container 13, which is formed at the transition between the container neck 29 and the container body 28.

The arrangement of the ends of the straps 19a, 19b, so that in the circumferential direction of the first end 39, the second end 41, the third end 51 and the fourth end 53 follows and a certain length of the first and second straps 19a, 19b have 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 their tongue ends 45, 49 are brought into congruence. The tongues 43, 47 can therefore be automatically transferred from an arrangement in which they are arranged next to one another to an arrangement in which the tongue ends 45, 49 overlap by rotating the screw cap 15.

Since the closure cap 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 guarantee ring 17. The second end 41 and the fourth end 53 close an opening angle 75 of at least 60 degrees and at most 90 degrees and preferably at least 70 and at most 80 degrees with respect to the center point 73 as the vertex.

If the closure cap 11 is bounced onto the container neck 29, the pouring opening 33 is closed by the closure cap 11 and the closure cap 11 is in the closed position. When the screw cap 15 is unscrewed from the container neck 29, the predetermined breaking webs 63 break. The guarantee ring 17 rotates with the screw cap 15. During unscrewing, the first and second retaining straps 19a, 19b can straighten up and the first and second tongues 43, 47 are displaced towards one another.

As already described above, the screw cap 15 is folded into the open position after it has been unscrewed from the container neck 29 in that the first tongue end 45 is locked on the step 55. By choosing the opening angle 75, the first and second retaining straps 19a, 19b have a length which enables the screw cap 15 to be unscrewed from the container neck 29 and the tongues 43, 47 to be rotated relative to one another. The length of the first and second retaining straps 19a, 19b must be precisely coordinated. If the length of the retaining straps is too long, the first tongue end 45 is not held sufficiently firmly on the step 55. If the length of the retaining straps is too short, the screw cap 15 snaps back from the open position and prevents the filling material from being poured out of the pouring opening 33.

In the open position, the screw cap 15 is held captive on the container 13 and 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 out of the container 13. The first and second retaining straps 19a, 19b make it possible for the screw cap 15, after it has been unscrewed from the container neck 29, to be moved into the open position in a forced folding movement. Due to the forced operation and the step 55, there is only one open position and not several. The length and the cross section of the first and the second retaining strap 19a, 19b are preferably dimensioned such that the first and the second retaining strap 19a, 19b are elastically tensioned in the open position of the screw cap 15. As a result, the screw cap 15 in the open position is pulled onto the container neck 29 and the step 55 and is held on this without wobbling. The elastic pretensioning of the first and second retaining straps 19a, 19b also makes it possible for the screw cap to be transferred several times from the open position to the closed position and vice versa. As a result, the container neck 29 can be opened and closed several times and the screw cap 15 is held in the open position in a stable and wobble-free manner every time it is opened.

The projections 37 can be designed in accordance with the following description of the figures of FIGS. 9 and 10. This embodiment of the projections 37 is the content of the Swiss patent applications with the application numbers 01467/19 and 01695/19, the priorities of which have been claimed and the content of which is hereby incorporated into the present patent application. Slits 97 are provided on the guarantee ring, distributed over the circumference of the guarantee ring 17. The slots 97 each have an upper edge 99 and a lower edge 101. The upper edge 99 is formed by an arcuate section of the guarantee ring 17. The lower edge 101 corresponds to the free edge of an inwardly inclined wall section 103 in the radial direction. The lower edge 101 has a smaller radius than the guarantee ring 17 due to the inner inclination of the wall section 103 and can therefore strike an abutment (retaining ring 35) of the container neck 29 if 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 the retaining ring 35 in a form-fitting manner, as a result of which the guarantee ring 17 is reliably held on the retaining ring 35 even with high axial forces.

Each wall section 101 has a first sub-section 105 and two second sub-sections 107. The first sub-section 105 represents a jacket section which is folded inward and is preferably of planar design. The second sub-sections 107 adjoin the inwardly facing sides of the first sub-section 105 and connect this to the guarantee ring 17. The second sub-sections 107 can be curved or flat and face one another obliquely inward. The lower edge 101 of the slot 97 corresponds to the free edges of the first section 105 and the second section 107 and lies in a plane 109, which is shown in FIG. The 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 wall section 103 can rest with the entire lower edge 101 on the retaining ring 35 and does not yield in the manner of a barb when an axial tensile force is applied upwards. As a result, the guarantee ring 17 is permanently held on the retaining ring 35 or can only be removed from the retaining ring 35 with destruction. A movement of the first subsection 105 inward in the radial direction is prevented by the provision of the second subsections 107. However, a movement of the first partial section 105 outward in the radial direction is possible. This movement is flexible and the wall section 103 returns to its inwardly inclined basic position after it has been pressed radially outward. This has the further advantage that the guarantee ring 17 can be easily removed from the mold and can be bounced onto the container neck 29 together with the screw cap 15 with little force. Demolding from an injection mold and bouncing onto the container neck 29 can take place due to the flexibility of the wall section 103 without the risk of the wall section 103 being damaged.

It is preferred if the inclined wall sections 103 have a wall thickness that is reduced compared to the rest of the guarantee ring 17. In FIG. 10 it is shown that the area of the lower edge 101 has the smallest wall thickness. As a result, the flexibility of the wall section 103 described above is further improved radially outward. The wall thickness of the wall section 103 increases linearly downwards starting from the lower edge 101.

In FIGS. 9 and 10, the guarantee ring 17 is shown without the screw cap 15. It can be clearly seen in FIGS. 9 and 10 that an annular bead 111 is formed on the guarantee ring 17 above the slots 97, on which the upper edges 99 lie.

In FIG. 10, a first and a second angle of inclination 113, 115 are entered. The first angle of inclination 113 indicates the inclination of the first subsection 105 with respect to the plane of the lower edge 101. The first angle of inclination 113 has a size between 60 and 80 degrees and preferably between 65 and 75 degrees. The larger the first angle of inclination 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 angle of inclination 113 must not be too large, since otherwise the retaining ring 35 will not be sufficient can be undercut.

The second angle of inclination 115 indicates the inclination of the slot 97 relative to the plane of the lower edge 111. The straight connecting line 117, which represents the inclination of the slot 97, is a connection of the upper edge 99 with the lower edge 101 in a plane which is spanned by the axis of rotation 110 and the straight connecting line 117. The second angle of inclination 115 is enclosed by the connecting straight line 117 and the plane 109. The second angle of inclination 115 has a size between 30 and 50 degrees and preferably between 35 and 45 degrees. The greater the second angle of inclination 115, the easier it is for the guarantee ring 17 to be removed from the mold.

An inwardly projecting inner cone 87 (FIG. 4), for example in the form of a sealing cylinder or a sealing ring, is preferably integrally formed on the bottom 21 of the screw cap 15. The inner cone 87 is designed to cooperate in a sealing manner with the inner wall 89 of the container neck 29 in the closed position. The closure cap 11 can therefore act as a so-called “cone sealer” and reliably seals the container neck 29.

The closure cap 11 is made of a plastic. Preferred plastics include PP and HDPE.

Legend:

11 container closure 13 container, bottle 15 screw cap 17 guarantee ring 19a first retaining strap 19b second retaining strap 21 cover disc of screw cap 23 first cylindrical jacket 25 free edge 27 internal thread 28 container body 29 container neck 31 external thread 33 pouring opening 35 retaining ring 37 projections, engaging means 39 first end of First tether 41 Second end of the first tether 43 First tongue 45 First tongue end 47 Second tongue 49 Second tongue end 51 Third end of the second tether 53 Fourth end of the second tether 55 Extension, step 57 First recess 59 Reinforcing section 63 Breaking webs 65 Second recess 67 Third recess 69 Web section 72 support ring 73 center of the closure cap 75 opening angle 87 inner cone 89 inner wall 97 slots 99 upper edge 101 lower edge 103 wall section 105 first section 107 second sections 109 plane 110 axis of rotation 111 annular bead 113 first angle of inclination 115 second ne angle of inclination 117 connecting line

Claims (20)

1. Container closure (11) for closing the pouring opening (33) of a container (13), having - A screw cap (15) with a free edge (25), a first cylindrical casing (23), a cover disc (21) and an internal thread (27) formed on the inside of the casing (23), which has an external thread (31) a container neck (29) of the container (13) can interact, - a guarantee ring (17) which is designed to be held on a first projection formed on the container neck (29), in particular a retaining ring (35), - A plurality of predetermined breaking webs (63) which releasably connect the guarantee ring (17) to the free edge (25), - A first retaining strap (19a) with a first and a second end (39,41) wherein the first end (39) is firmly connected to the free edge (25) of the screw cap (15) and the second end (41) to the Guarantee ring (17) is firmly connected, and - A second retaining strap (19b) with a third and a fourth end (51,53), the third end (51) being firmly connected to the free edge (25) of the screw cap (15) and the fourth end (53) being connected to it the guarantee ring (17) is firmly connected, wherein a first tongue (43) with a first tongue end (45) on the free edge (17) in extension to the jacket (23) is formed between the first and the second retaining strap (19a, 19b) and the screw cap (15) can be folded from a closed position in which it closes the pouring opening (33) into an open position in which it completely releases the pouring opening (33) and vice versa, characterized, that 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) or on the guarantee ring (17) and that between the second and the third end (41,51) the first tongue (43) and a second tongue (47) adjoining the first tongue (43) with a second tongue end (49) are arranged, the second tongue (47 ) is part of the guarantee ring (17) and in the open position the first tongue end (45) comes into contact with the second tongue end (49). 2. Container closure according to claim 1, characterized in that the second tongue end (49) is designed as an extension (55) on the edge of the guarantee ring (17) facing the screw cap (15). 3. Container closure according to claim 1 or 2, characterized in that the extension is a step (55) projecting radially outward. 4. Container closure according to one of the preceding claims, characterized in that the extension (55) has a height between 1 and 4 mm and preferably between 2 and 3 mm. 5. Container closure according to one of the preceding claims, characterized in that the first tongue (43) adjoins the second end (41) or the third end (51) and the second tongue (47) depends on the position of the first tongue (43) ) is adjacent to the second or third end (41,43). 6. Container closure according to one of the preceding claims, characterized in that the first tongue (43) is received in the closure position in a first recess (57) provided on the guarantee ring (17). 7. Container closure according to claim 6, characterized in that a reinforcing section (59) is formed below the first recess (57) on the guarantee ring (17). 8. Container closure according to 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 guarantee ring (17) and preferably between 75 and 85% of the height of the guarantee ring. 9. Container closure according to one of the preceding claims, characterized in that the length of the first and the second retaining strap (19a, 19b) is dimensioned such that the first and the second tongue (43,47) when transferring the screw cap (15) in the open position can be brought into congruence. 10. Container closure according to one of the preceding claims, characterized in that on the edge of the guarantee ring (17) facing the first and second retaining straps (19a, 19b) a second and third recess (65, 67) for receiving the first and second retaining straps ( 19a, 19b) is provided. 11. Container closure according to one of the preceding claims, characterized in that the second and fourth ends (41, 53) have 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 ) include the screw cap (15) as the apex. 12. Container closure according to one of the preceding claims, characterized in that an inwardly protruding inner cone (87), for example in the form of a sealing cylinder or a sealing ring, is formed on the cover disc (21), which is designed with the inner wall (89). of the container neck (29) in the closed position to cooperate in a sealing manner. 13. Container closure according to one of the preceding claims, characterized in that the first and second retaining straps (19a, 19b) have a width between 3 mm and 7 mm and preferably a width between 4 mm and 5 mm. 14. Container closure according to one of the preceding claims, characterized in that the closure cap (11) is designed to interact with a standardized container neck (29) with an external thread (31) and a retaining ring (35). 15. Container closure according to one of the preceding claims, characterized in that the closure cap (11) is made of a plastic material, preferably PP or HDPE. 16. Container closure according to one of the preceding claims, characterized in that the screw cap (15), the guarantee ring (17), the first and second retaining straps (19a, 19b), the predetermined breaking webs (64) and the first and second tongue (43, 47) are made in one piece. 17. Closure cap according to one of the preceding claims, characterized in that the guarantee ring (17) has slots (95) distributed over the circumference with an upper edge (97) and a lower edge (99), the upper edge (97) being shaped like an arc of a circle extending portion of the guarantee ring (17) is formed and the lower edge (99) is formed by a radially inwardly inclined wall section (101) and that the lower edge (99) of each slot (95) forms projections (37), whereby engagement means are formed for a positive engagement with the retaining ring (35). 18. Container closure according to one of claims 10 to 17, characterized in that a projection (37) is formed on the guarantee ring (17) below the second and third recess (65, 67). 19. Having container (13) - a container body (28), - A container neck (29) adjoining the container body (28), - An external thread (31) formed on the container neck (29) and - A container closure (11) for closing a pouring opening (32) provided within the container neck (29), the container closure (11) having - A screw cap (15) with a free edge (25), a first cylindrical casing (23), a cover disc (21) and an internal thread (27) formed on the inside of the casing (23), which has an external thread (31) a container neck (29) of the container (13) can interact, - a guarantee ring (17) which is designed to be held on a projection formed on the container neck (29), in particular a retaining ring (35), - A plurality of predetermined breaking webs (63) which releasably connect the guarantee ring (17) to the free edge (25), - A first retaining strap (19a) with a first and a second end (39,41) wherein the first end (39) is firmly connected to the free edge (25) of the screw cap (15) and the second end (41) to the Guarantee ring (17) is firmly connected, and - A second retaining strap (19b) with a third and a fourth end (51,53), the third end (51) being firmly connected to the free edge (25) of the screw cap (15) and the fourth end (53) being connected to it the security ring (17) is firmly connected, with a first tongue (43) with a first tongue end (45) on the free edge (17) extending to the jacket (23) between the first and the second retaining strap (19a, 19b) is formed and the screw cap (15) can be folded from a closed position in which it closes the pouring opening (33) into an open position in which it completely releases the pouring opening (33) and vice versa, characterized, that the closure cap is a closure cap (11) according to one of claims 1 to 18. 20. Container according to claim 19, characterized in that a support ring (72) is formed at the transition from the container neck (29) to the container body (28) and the screw cap (15) in the open position with the second tongue (47) and the support ring (72) is in contact.