CN110573433A

CN110573433A - closure for a container and container having such a closure

Info

Publication number: CN110573433A
Application number: CN201880024530.6A
Authority: CN
Inventors: B·克尼格塞德
Original assignee: Aptar Freyung GmbH
Current assignee: Aptar Freyung GmbH
Priority date: 2018-04-05
Filing date: 2018-04-05
Publication date: 2019-12-13
Anticipated expiration: 2038-04-05
Also published as: ES2836198T3; US20210002044A1; WO2019192714A1; EP3573901B8; CN110573433B; EP3573901B1; RU2019120189A; EP3573901A1; PL3573901T3; AR115337A1; BR112019011128A2; JP2021517541A; KR20190117478A

Abstract

The present invention relates to a closure for a container having a base member and a flip top lid attached to the base member by a hinge such that the flip top lid is movable between a fully open position and a fully closed position. The flip top cover has a tab extending outwardly therefrom and the skirt has a tongue member extending from an upper region of the skirt of the base member. The invention also relates to a container having such a closure.

Description

Closure for a container and container having such a closure

The present invention relates to a closure or closure device for a container and to a container provided with such a closure.

Such closures or dispensing devices are particularly useful for dispensing products contained in containers to which they are attached.

The product to be dispensed is usually a fluid product, such as a liquid or powdered or granular product, for example in the field of food or beverages, but can also be used in other applications, for example for cleaning substances, detergents or other products.

more particularly, the present invention relates to a closure having a flip top lid attached to a base member by a hinge, while such flip top lid is movable between fully open and fully closed positions as the flip top lid is typically rotated substantially about the hinge between its open and closed positions.

Such a product is known, for example, from US 7,051,888B 2.

It is an object of the present invention to provide a reinforced closure or dispensing device having a base member and a flip top lid attached to the base member.

This object is achieved by a closure for a container according to claim 1 and a container with such a closure according to claim 14. Claims 2 to 13 relate to particularly advantageous implementations of a closure according to claim 1, and claim 15 is a particularly advantageous implementation of a container having such a closure according to claim 14.

According to the present invention, a closure for a container comprises a base element and a flip top lid attached directly or indirectly to the base element by a hinge. The connection of the flip top cover to the base element is achieved in that: the flip top cover is movable between a fully open and a fully closed position, between which the flip top cover is normally rotated.

According to the invention, the base element has a skirt with attachment means for attaching the closure to the container, wherein the skirt has an upper region and a lower region, the upper region being closer to the flip top lid than the lower region when the flip top lid is in its fully closed position.

The attachment means are adapted to attach the closure element to a container, preferably to the neck of a container, such as a bottle, so that a product, typically a fluid product, such as a liquid or powder or granular product, can be dispensed from the container through the neck and through the closure, of course with the flip top lid in its open position.

The closure has an orientation in which the lower portion or underside is attached to the container, in particular the neck of the container, and the upper portion is defined by the opposing portion of the closure at which the flip top lid is disposed when in its closed position. Thus, a vertical x-axis may be defined, extending vertically from top to bottom through the closure.

typically, such closures have a substantially circular form, the neck of a typical container being also substantially circular, such that the skirt of such a closure also has a substantially cylindrical form, wherein the cylinder has a substantially circular cross-section, and wherein the vertical x-axis is the longitudinal axis of such a cylinder or such a substantially cylindrical form.

Thus, a direction orthogonal or perpendicular to the vertical direction or x-axis is defined as an inward direction or an outward direction, also referred to as a radial direction, even if the shape of the closure is not strictly circular. Thus, the outward direction would be a direction orthogonal to the vertical x-axis direction, from the interior of the closure to the exterior of the closure, e.g., starting from the x-axis and being orthogonal or perpendicular to the x-axis.

According to the invention, the skirt of the base element has a tongue-like member extending from an upper region or edge of said skirt into an upward or vertically upward direction, i.e. in a direction substantially parallel to said vertical x-axis.

In this connection, it must be noted that an extension of the tongue into an upward or vertically upward direction is only given if the extension of the tongue has at least one part which extends into an upward or vertically upward direction. Thus, in addition to an extension in a vertically upward direction, the tongue member may also extend in an inward or outward or radial direction.

The flip top cover disclosed herein has a projection extending outwardly or radially outwardly from the flip top cover in a direction orthogonal or substantially orthogonal to the upward or vertically upward direction or x-axis direction into which the tongue member extends. It has to be noted in this connection that the extension of the projection provides at least one component directed outwards or radially outwards, while the extension of the projection may also have other components in part, for example in the vertical direction, so that the projection does not have to extend only in the radially outwards or outwards direction, but may also extend in part in the upwards or downwards direction, so that the extension comprises components in the outwards direction and in the vertical direction or x-axis direction.

According to the invention, the tongue member and the projection are positioned and arranged such that, during movement of the flip top lid between its fully closed position and its fully open position, the projection and the tongue member are in contact with each other over a first predetermined angular range of the position of the flip top lid relative to the base element during movement of the flip top lid between its fully closed position and its fully open position, whereby the projection exerts a force on the tongue member in an inward or radially inward direction, while the tongue member exerts a reaction force on the projection.

The magnitude of the applied force and reaction force can be set by a specific geometrical configuration and dimensions, in particular of the tongue member, such as its thickness, and it can also be influenced and can be determined from the choice of the material used for the closure, in particular of the tongue member, and its mechanical properties, such as its stiffness and elasticity.

The tongue member and the projection are positioned such that the reaction force supports movement of the flip top cover in a direction toward its fully open position when the flip top cover is within a second predetermined angular range relative to the base element.

In a preferred embodiment, a first predetermined angular range is set extending over a range of about 70 ° to 190 °, preferably over a range of about 80 ° to 140 °, within which first predetermined angular range the projection and the tongue member are in contact with each other.

The second predetermined angular range preferably extends over about 30 ° to 90 °, preferably about 40 ° to 60 °.

In this respect, it must also be noted that in the case where the flip top cover is within a third predetermined angular range with respect to the base element, which is substantially immediately adjacent to the second predetermined angular range, both of which are within the first predetermined angular range, the reaction force may support the movement of the flip top cover in the direction towards its fully closed position.

In a preferred embodiment, there is a "neutral position" between the second and third predetermined angular ranges, and movement of the flip top cover within the range of its fully open position or its fully closed position is supported when the flip top cover is moved slightly into the second predetermined angular range or the third predetermined angular range.

According to the invention, the tongue element or at least its outer surface extends in its upper part at least partially into the inward or radially inward direction.

The closure for a container according to the present invention has the advantage that when the flip top lid is in its open or fully open position, the flip top lid is effectively retained in that position so that the flip top lid does not inadvertently move to its closed or intermediate position during use or during dispensing of a product contained in the respective container.

Furthermore, the device is particularly user-friendly, since due to the forces and reaction forces generated by the tongue member and the outlet there is a direct feedback to the user, which is automatically felt by the user when operating the flip top lid, so that the user gets an automatic feedback about when the flip top lid is in its fully open position.

An important advantage is achieved by the particular form and geometric arrangement of the tongue element, or at least its outer surface, which extends at least partially into the inward or radially inward direction in its upper portion, since this provides a uniform development of the forces and reaction forces generated between the tongue element and the projection, so that these forces do not change abruptly or with a high gradient, thereby ensuring that a smooth movement of the flip top lid from its closed position to its fully open position is achieved, and vice versa, which in particular avoids splashing or spilling of the product contained in the respective container, in particular in those cases where the product is a liquid product and in particular for opening the closure for the first time when the respective container is still completely filled with the product to be dispensed, in particular liquid.

This controlled development of forces and reaction forces between the tongue member and the projection cannot be achieved with a tongue member that extends substantially only in the vertical direction.

The precise development of the forces and reaction forces between the tongue member and the projection can be fine-tuned, also depending on the material used for manufacturing the closure, but it is always necessary that the tongue member, or at least its outer surface, extends at least partially into an inward or radially inward direction with respect to the starting position of the tongue member at the upper portion or edge of the skirt or with respect to the outer surface of the skirt.

The extension into the inward or radially inward direction may already start with respect to the vertical extension of the tongue, e.g. already at about 10% or 20% of the total vertical extension of the tongue element, counted from the upper portion or upper edge of the skirt.

In one embodiment it is also possible that the tongues extending from the upper or upper part or upper edge of the skirt part start to flex or bend partly inwards directly in relation to the outer surface of the skirt part or the radial or inward/outward position of the skirt part until the tongue elements or the outer surface thereof have reached their maximum inwardly directed position.

In a preferred embodiment, the outer surface of the tongue element has a continuously flared or continuously differentiable form, i.e. a form without any edges, and it may comprise a convex and a concave form, in a particular embodiment the outer surface shows a substantially S-shape or a partly S-shape. It must also be noted, however, that in another embodiment the outer surface of the tongue element may also comprise one or more edges.

In a preferred embodiment, the closure is arranged such that the opening angle of the flip top lid between its fully closed position and its fully open position is at least equal to 180 °, preferably greater than 180 °. Such a large opening angle ensures in particular that, upon dispensing, the flip-top lid does not interfere at all with the dispensing of any product, even if the user fails to operate the device in a perfect manner during dispensing (for example by tilting the container to which the closure according to the invention is attached).

In a preferred embodiment the hinge comprises two or at least two separate parts arranged at a distance in the circumferential direction of the closure. These two parts of the hinge can be realized, for example, by two elastic tabs connecting the flip top cover with the base element. Such a hinge is easy to manufacture, in particular by injection moulding, and provides reliable operation, closing and/or opening of the flip top lid. Preferably, the closure is provided such that it can also be molded with the lid in the closed position.

In a preferred embodiment, the tongue member and said projection are positioned between these two parts of the hinge, for example between two elastic pieces. This particular realization leads to a stable and reliable functioning of the closure, in particular a stable and reliable movement of the flip top between its open position and its closed position, in particular due to the fact that the tongue member and the projection exert a force and a reaction force on each other.

According to a further preferred embodiment, the tongue member has a lower portion which extends into the upward and inward direction of the closure, preferably in a radially inward direction of the closure, since the closure is preferably a closure having a substantially circular form with a substantially cylindrical or partly cylindrical skirt.

Preferably, the outer surface of the tongue element is curved, preferably convexly curved, which enables a smooth development of forces and reaction forces during opening and closing of the flip top lid.

In a preferred embodiment, the upper portion of the tongue member extends only in the vertical or upward direction.

In a preferred embodiment, the tongue element and the projection are arranged such that during movement of the flip top from its fully closed position to its fully open position the projection first abuts an outer surface of said tongue element at a predetermined angular position, preferably in an area having a most outward or radially outward position, such that upon further movement (in particular rotation) of the flip top into its fully open position the tongue member remains in contact with the outer surface of said tongue member and moves along the tongue member such that it then comes into contact with a portion of said tongue element or its outer surface, which outer surface extends at least partially into a more inward direction.

in a preferred embodiment, the outer surface of the tongue member has an at least partially convexly formed cross-section at its lower portion, which cross-section preferably transforms in a more upward direction into a concavely formed cross-section, and further preferably at its uppermost portion, the cross-section of the outer surface of the tongue member is formed substantially linearly. This particular arrangement (structure) achieves a particularly smooth and preferred development of forces and reaction forces between the tongue elements and the projections during operation of the flip top lid and movement of the flip top lid between its open position and its closed position.

preferably, the protrusion of the flip top cap is positioned at an upper portion of the flip top cap and extends, preferably radially outwardly, while the term "radially outwardly" is also used in the case where the flip top cap has a form that at least partially deviates from a circular or cylindrical form, such as when the closure has an oval or other form.

according to a preferred embodiment, the angular extension of the projection and/or the tongue member in the circumferential direction of the closure is in the region of about 10 ° to 40 °, further preferably in the region of 15 ° to 30 °, for example about 25 °, which on the one hand enables a reliable functioning of the device and a secure and reliable interaction between the projection and the tongue member, while on the other hand keeps the elements small enough to use as little material as possible and thereby also reduces the overall weight of the closure, which is an important cost factor for the manufacture of the closure.

in a preferred embodiment, the angular extension of the projection and the tongue member in the circumferential direction are substantially identical and overlap, however, in another preferred embodiment, the angular extension of the projection is smaller than the angular extension of the tongue member in the circumferential direction of the closure.

According to a further preferred embodiment, the height of the skirt of the base element is different over its circumferential extension, preferably the height of the skirt is greatest in the circumferential region where the tongue members and/or the projections are located. This has the advantage that the protrusion and the tongue member are located in close proximity to each other, which enables the size of the protrusion and/or the tongue member to be minimized, while still maintaining a high stability and thus a reliable interaction between these two elements during operation of the closure. Preferably, the skirt has a lowest height on opposite sides thereof, which increases the overall size of the opening provided by the closure when the flip top lid is in its fully open position.

Preferably, the upper edge of the skirt extends continuously, i.e. without any edges, which both increases stability while maintaining the above-mentioned advantages, and additionally provides a particularly extraordinary visual appearance of the closure, in addition to the functional advantages as described above.

The invention also relates to a container having a closure as described above, while the closure is preferably attached to the container, for example by screwing onto the neck of the container or by pushing the closure onto the neck of the container. Thus, both the closure and the container, in particular the neck of the container, are provided with fastening means interacting with each other, whereas these fastening means may be threads, e.g. an internal thread at the skirt of the base element of the closure and a corresponding external thread at the neck of the container, but also corresponding protrusions for realizing a so-called snap-on closure are possible. The closure and the container or the neck of the closure and the container may also form an integral unit, as at least partly manufactured together or alternatively connected to each other by other means, for example by gluing or welding.

According to a particularly preferred embodiment, the container or in particular the neck of the container is provided with at least one protrusion at a predetermined height of the neck, which protrusion extends at least partially around, for example, the circumference of the neck of the container, while such protrusion is provided such that, when the closure is attached to the container, the tongue member extends in an inward or radially inward direction at a position (vertically) above said protrusion of the neck of the container. This particular implementation has the advantages of: the protrusion of the neck also supports and controls the development of forces and reaction forces generated between the tongue and the protrusion, particularly the tongue member.

these and other features and advantages of the closure or of the container with the closure will also be described in connection with the following description of an embodiment of the closure device according to the invention:

Fig. 1 shows a perspective view of an embodiment of a closure according to the invention in its fully closed position;

FIG. 2 shows a perspective view of the embodiment of FIG. 1 with the flip top cover in its fully open position;

FIG. 3 shows a cross-section according to an embodiment of the present invention with the flip top lid in its fully closed position;

FIG. 4 shows a section through the embodiment shown in FIG. 3 with the flip top cover in a partially open position;

FIG. 5 illustrates the embodiment shown in FIG. 3 with the flip top cover in its fully open position;

Fig. 6 is an enlarged view of the embodiment shown in fig. 3 with the flip top lid in its fully closed position.

Fig. 1 shows a perspective view of an embodiment of a closure 10 for a container according to the present invention. The closure 10 includes a base member 100 and a flip top cap 200, with the flip top cap 200 shown in its fully closed position in fig. 1.

The base element 100 comprises a substantially cylindrical skirt 110 having attachment means on its inner surface for attaching the closure to the container neck, see in particular fig. 3 as described below.

The closure 10 further comprises a flip top lid 200, which is shown in its fully closed position, while the flip top lid 200 is attached to said base element 100 by means of a hinge 150.

In this embodiment, the hinge 150 comprises two resilient pieces 152, which resilient pieces 152 are arranged at a distance from each other in the circumferential direction of the closure 10.

The base element 100 further comprises a tongue member 120 extending in an upward direction from the upper edge 160 of said skirt 110, i.e. in a direction parallel to a central or longitudinal vertical axis, such as the x-axis shown in fig. 1.

Further, the tongue member 120 and its outer surface extend into an inward direction in a portion thereof, as will be shown and explained in more detail below with reference to fig. 3.

the flip top cover 200 includes a projection 220 that extends outwardly from the flip top cover 200 in a direction orthogonal to the upward or vertical or x-axis direction into which the tongue member 120 extends.

Fig. 2 shows another perspective view of an embodiment of the closure according to the invention as shown in fig. 1, with the flip top lid in its fully open position.

As is clearly visible in fig. 2, the opening angle of the flip top lid, e.g. the angle around which the flip top lid 200 is rotated from its fully closed position to its fully open position, is significantly greater than 180 °, in the present invention the opening angle is about 250 °, see also fig. 5 below, for example.

The flip top cap 200 further comprises an inner ring 260 adapted to seal the closure against the neck of the container, see in particular fig. 3 below.

As is also clearly visible in fig. 2, the tab 220 of the flip top cover 100 and the tongue member 120 of the base element 100 interact with each other such that the flip top cover 200 is held and maintained in its fully open position. If the user wants to move or rotate the flip top cover 200 out of its fully open position shown in fig. 2 into the direction of the closed position, the tab 220 pushes against the outer surface of the tongue member 120, exerting a force on the tongue member 120, thereby creating a reaction force such that the user must exert a greater force to move the flip top cover 200 out of its fully open position, as would be the case if no tongue member or tab were present.

As mentioned before, the exact force can be set and fine-tuned, for example by selecting the specific thickness of the elements, in particular the tongue member, and by selecting the material of the tongue member with respect to its mechanical properties.

As is also clearly visible in fig. 2, the skirt 110 of the base element 100 comprises attachment means 132 and 134 on the inner surface of the skirt 110, which are adapted to attach the closure to the neck of a container, as will be described below in connection with fig. 3.

Fig. 3 shows a cross-section of the embodiment shown in fig. 1 and 2, with the flip top lid 200 in its fully closed position, and with the closure 10 attached to the neck 300 of the container.

As best seen in fig. 3, the neck 300 of the container includes an annular protrusion 330 extending in an outward direction at the outer surface of the neck 300.

The skirt 110 of the base member 100 of the closure 200 comprises inwardly projecting fastening means 132 and 134 at its inner surface, whereas when the closure 10 is mounted on the neck 300 of a container, the fastening means 132 comprising the various projections are positioned below the projections 330 of the neck 300, while the projections 134 of the skirt 100 are positioned above or vertically above the projections 330 of the neck 300 of the container.

In order to bring the closure 10 into its mounted position on the neck, the closure 10 is pushed onto the neck 300 of the container, so that the embodiment shown here is a so-called snap-on closure.

In this connection, however, it must also be noted that different fastening means may also be provided. The closure can also be realized, for example, as a closure with an internal thread corresponding to an external thread of the neck of the container, so that the closure can be screwed onto the neck of the container.

As also clearly seen in fig. 3, the inner ring 260 extending from the lower inner wall of the flip top cap 200 fits into the opening defined by the neck 300 of the container such that when it is in the fully closed position, the flip top cap 200 seals the opening of the neck 300 of the container.

fig. 4 also shows the embodiment shown in fig. 3 in cross-section, however, with the flip top cover 200 in a partially open position.

As best seen in fig. 4, the protrusion 220 abuts against the outer surface of the tongue member 120, such that said protrusion 220 exerts a force on said tongue member 120, which thereby generates a counter force.

Thus, the user will have to apply more force to further move or rotate the flip top cover 200 into the direction of its fully open position.

however, due to the fact that as the flip top lid is rotated further to its fully open position, as also clearly visible in fig. 4, the end of the projection 220 moves into the area of the tongue member 120 which is partially deflected or partially bent into an inward direction, the forces and reaction forces generated between these two elements are gradually reduced starting from a certain predetermined angle of rotation.

This has the advantage that: on the one hand, starting from a certain predetermined angle of rotation, the flip top cover 200 will be pushed further into its fully open position, however, the force is reduced such that the flip top cover does not "snap" as strongly into its fully open position, and this avoids any splashing or spilling of liquid from the container.

Fig. 5 shows the embodiment according to the invention as shown in fig. 4, however, with the flip top lid in its fully open position.

as is clearly visible in fig. 5, the projection 220 now fits substantially completely into the radially inwardly displaced region of the tongue element 110.

Thus, the particular form of the tongue member 120 or its outer surface, depending successfully on the angle of rotation, provides for a suitable development of the forces and reaction forces generated between the tongue 120 and the projection 220, so as to support, on the one hand, the movement of the flip top cap 200 into its fully open position after a particular angular position has been reached, and in particular the flip top cap is maintained and retained in its fully open position, and on the other hand to avoid generating too much force between these two elements, which would otherwise result in the flip top cap undesirably snapping strongly into its fully open position, as this often leads to splashing or spilling of the contents from the container, in particular in the case of a container comprising a liquid and in the case of a relatively full container.

In this respect, it must also be noted that in this embodiment, the closure is also substantially automatically effected such that when the user moves the flip top cover 200 from its fully open position back to the angled position, the movement of the flip top cover 200 back to its closed position is supported.

In other words, there is an angular position α 1, i.e., a "neutral position", and a slight movement to an angular position closer to the fully closed position results in a movement of the supporting flip top cover 200 along its closed position, whereas a movement beyond this angular position α 1 into the direction of its fully open position results in a support of a movement of the supporting flip top cover 200 into its fully open position, as described above.

Fig. 6 shows an enlarged partial view of the embodiment of fig. 3 with the flip top cover 200 in its fully closed position.

In fig. 6, an implementation of the tongue element 120 can be seen particularly well, which not only extends in the upward direction, but also has a section 122 in which the tongue element 120 also extends in the inward direction, in this case in the radially inward direction, and has a final or upper section 124, which also extends only in the upward direction.

the outer surface 126 of the tongue member 120 is thus curved and has a first partially convexly formed surface which, as it moves further upward, transforms into a substantially linearly or vertically extending, partially concavely formed cross-section before the upper region 124. The outer surface 126 of the tongue member 120 thus substantially depicts an S-shape or a portion of an S-shape.

in this embodiment, the thickness of the tongue member 120 is substantially constant, however, it is of course possible to have a tongue member with a different thickness over its extension.

It will be clear to a person skilled in the art that various modifications may be made to the embodiments and that any features disclosed in connection with the embodiments or in the general description may be essential to the implementation of the invention either alone or in any combination thereof, without departing from the scope of the invention as defined in the appended claims.

Claims

1. A closure for a container having:

-a base element (100),

-a flip top cover (200) attached to the base element (100) by a hinge (150) such that the flip top cover (200) is movable between a fully open position and a fully closed position,

The base element (100) having a skirt (110) with attachment means (132, 134) for attaching the closure to a container, the skirt (110) having an upper region and a lower region, the upper region being closer to the flip top cap (200) than the lower region when the flip top cap is in its fully closed position,

The skirt (110) having a tongue member (120) extending from the upper region of the skirt (110) into an upward direction,

The flip top cover (200) having a projection (220) extending outwardly from the flip top cover (200) in a direction orthogonal to the upward direction into which the tongue member (120) extends,

The tongue member (120) and the projection (220) being positioned and arranged such that during movement of the flip top lid (200) between its fully closed position and its fully open position, within a first predetermined angular range of the position of the flip top lid (200) relative to the base element (100) during movement of the flip top lid between its fully closed position and its fully open position, the projection (220) and the tongue member (120) are in contact with each other such that the projection (220) exerts a force on the tongue member (120) in an inward direction and the tongue member (120) exerts a reaction force on the projection (220),

Such that the reaction force supports movement of the flip top cover (200) in a direction towards its fully open position when the flip top cover (200) is within a second predetermined angular range relative to the base element (100),

Wherein the tongue element (120) or an outer surface (122) thereof extends at an upper portion thereof at least partially into an inward direction.

2. A closure as claimed in claim 1, wherein the opening angle (α) of the flip-top lid (200) between its fully closed position and its fully open position is equal to 180 °, and preferably greater than 180 °.

3. The closure according to claim 1 or 2, wherein the hinge (150) comprises two parts, in particular two elastic tabs (152), which connect the flip top cover (200) and the base element (100).

4. A closure as claimed in claim 3, wherein said tongue member and said projection are positioned between said two parts of said hinge in the circumferential direction of said closure.

5. The closure according to any one of the preceding claims, wherein the tongue member (120) has a portion (122) extending in an upward and inward direction of the closure (10), preferably in a radially inward direction of the closure (10).

6. The closure according to any of the foregoing claims, wherein the upper portion (124) of the tongue member (120) extends only in an upward direction.

7. The closure according to any one of the preceding claims, wherein the outer surface (126) of the tongue member is curved, preferably in a convex form, in one portion (122) of the tongue member (120).

8. The closure according to any one of the preceding claims, wherein an outer surface (126) of the tongue member (110) has an at least partially convexly formed cross-section in a portion (122) thereof, which cross-section preferably transforms in a more upward direction into a concavely formed cross-section, while further preferably in an uppermost portion (124) of the tongue member (120) the cross-section of the outer surface (126) of the tongue member (120) is substantially linearly formed.

9. The closure according to any one of the preceding claims, wherein the projection of the flip top cap (200) is positioned at an upper portion of the flip top cap (200) and extends outwardly, preferably radially outwardly.

10. The closure according to any one of the preceding claims, wherein the angle of the projection (220) and/or the tongue (120) in the circumferential direction of the closure (10) extends in the region of about 10 ° to 40 °, preferably in the region of 15 ° to 30 °.

11. The closure according to any one of the preceding claims, wherein the angular extension of the projection (220) and the tongue member (120) along the circumference of the closure are identical and overlap.

12. The closure according to any one of claims 1 to 10, wherein the angular extension of the projection (220) in the circumferential direction of the closure is smaller than the angular extension of the tongue member (120).

13. The closure according to any one of the preceding claims, wherein the height of the skirt (110) of the base element (100) is different over its circumferential extension, while the height of the skirt (110) is greatest in the circumferential region in which the tongue members (120) and/or the projections (220) are positioned.

14. A container having a closure as claimed in any preceding claim.

15. A container according to claim 14, wherein the closure (10) is attached to a neck (300) of the container, and wherein the neck (300) comprises a protrusion (340) at its outer surface, wherein the tongue member (120) is arranged such that it extends in an inward direction at a position above the protrusion (340) of the neck (300) of the container.