BEVERAGE CONTAINER CLOSURE ASSEMBLY AND PROCEDURE FOR REPEATEDLY CLOSING A BEVERAGE CONTAINER BY MEANS OF A CLOSURE ASSEMBLY
Patent Information
- Authority / Receiving Office
- MX · MX
- Patent Type
- Patents
- Current Assignee / Owner
- ARDAGH METAL BEVERAGE HLDG GERMANY GMBH
- Filing Date
- 2022-12-02
- Publication Date
- 2026-05-19
Smart Images
Figure MX434487B0
Abstract
Description
BEVERAGE CONTAINER CLOSURE ASSEMBLY AND PROCEDURE FOR REPEATEDLY CLOSING A BEVERAGE CONTAINER BY MEANS OF A CLOSURE ASSEMBLY The present invention relates to a closure assembly for a beverage container, in particular a beverage can. The present invention further relates to a method for repeatedly closing an opening of a beverage container having a closure assembly, in particular the closure assembly described. The closure assembly comprises at least one lid element with an opening and includes a closure element non-separably disposed on the lid element and serving to repeatedly close the opening, particularly gas-tightly. The lid element is made of metal. The beverage container is used to store a contents, for example a fluid, and is positively pressurized in the closed state. Specifically in the case of cans of carbonated beverages, the beverage container, before being opened for the first time, can have an internal pressure of up to 6.2 bar. Both one-time-opening and resealable closure assemblies are known for sealing beverage containers. The advantage of resealable closure assemblies is obvious. With these, a beverage container can be sealed, particularly gas-tight, even after being partially emptied, preventing the escape of the stored fluid and, specifically in the case of carbonated beverages, the loss of carbonation. Commonly known resealable closure assemblies involve complex components or complex procedures for opening and closing the assembly. In particular, in this memory, a captive arrangement of the closure assembly on the lid element or on the beverage container is desired, in such a way that all constituent parts of the beverage container can be recycled. US patent 2012 / 248113 A1 discloses a resealable closure for a beverage can. In this patent, a lever supported on the can lid is rotated, pushing a flap into the beverage container. To secure the LCCC ίη / ZZΖΠZ / E / YΙΛΙ closure in an open position, the lever must then be at least partially arranged in the beverage container. It is an object of the invention to solve, at least partially, the problems that exist with respect to the prior art and, in particular, to provide a closure assembly for a beverage container, by means of which the closure assembly can be repeatedly resealed, in particular gas-tight. In particular, the intention is that a locking element of the locking assembly be simultaneously and captively arranged or fixed onto the beverage container. Furthermore, it is also intended that the beverage container can be closed by means of the closure assembly even after the initial opening, ensuring the airtightness of the beverage container (with respect to atmospheric pressure) both in the case of low pressure in the beverage container and even in the case of a pressure of up to 6.2 bar inside the beverage container. In addition, it is desired to specify a procedure as simple as possible for repeatedly closing an opening of a beverage container that has a closure assembly. These objects are obtained by means of a locking assembly according to the features of claim 1 and by means of a method according to the features of claim 20. Further advantageous embodiments of the locking assemblies and the method are specified in the dependent claims. It is indicated that the features individually specified in the dependent claims can be combined with each other in a technologically significant manner and define further embodiments of the invention. Moreover, the features specified in the claims are specified more precisely and discussed in more detail in the description, with further preferred embodiments of the invention being presented. This is aided by a closure assembly for a beverage container. The closure assembly comprises a lid with an opening and a locking element disposed over the lid for repeatedly closing the opening. The lid has an outer and an inner side, and the opening has an opening edge and an opening plane formed by the opening edge. The locking element has at least a base portion, a tab, and a lever element. The base portion has a frame portion, disposed over the opening edge and having a window, and a tab, which is rotatably connected to the frame portion for the purpose of closing the opening. LCCC ίη / ZZΖΠZ / E / YΙΛΙ window and therefore the opening. The tab is rotatably connected (only) via a first axis of rotation to the frame part. The lever element is connected (only) via a second axis of rotation to the tab and (only) via a third axis of rotation to the flap. Specifically, the lid element is a known lid, for example, a beverage can lid, which is or can be attached to the beverage can. Preferably, the lid element is not separately attached (it can only be destructively separated) from the beverage container. In particular, the lid element is made of a metal or an alloy. The inner side of the lid element forms that side of the lid element that faces the contents of the beverage container, with the outer side of the lid element forming that side of the lid element that faces the opposite side of the contents. The opening in the lid element is, in particular, simultaneously the (sole) pouring opening for the contents of the beverage container. Specifically, the shape of the opening is not specified. Specifically, the opening is not rotationally symmetric. However, a rotationally symmetric opening can also be closed by means of the memory closure element described herein and is therefore encompassed by the term “opening.” A new state of the locking element refers in particular to the state of the locking element before the tab is actuated, i.e., turned, for the first time. In the new state, the tab is in its initial, non-rotating position. If the tab is in this initial, non-rotating position, the flap has not been rotated, and therefore the window or opening closes. The tab is rotatable between an initial non-rotating position and a final position rotated to its maximum extension. In the tab's final position, the tab is fully rotated, and the window or opening opens to its maximum extent. In particular, in the initial position, the contents of the beverage container are sealed, specifically gas-tight, from the surrounding environment, particularly with respect to a pressure inside the beverage container of at least 3 bar, preferably at least 5 bar, and particularly preferably at least 6.2 bar. However, a seal is maintained even if the pressure inside the beverage container matches the ambient pressure. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ The locking element is a single piece; that is, the individual components—base, tab, and lever—are captively connected to each other (via the axes of rotation, specifically only via the axes of rotation). These components can be produced independently and connected during an assembly process. In particular, the first axis of rotation and the second axis of rotation are arranged parallel to each other and spaced apart. Specifically, the frame portion is positionally fixed and immovable on the opening edge. The lever, flap, and tab are connected to the lid via the frame portion. The lever, flap, and tab are arranged so that they are movable relative to the frame portion. In particular, the third axis of rotation is also arranged parallel to the other axes of rotation. During a rotary motion of the tab, the tab rotates relative to the frame portion around the first axis of rotation. Due to the spacing between the first and second axes of rotation, the second axis of rotation—that is, the connection between the lever element and the tab—also rotates around the first axis of rotation during this first rotary motion. Specifically, the third axis of rotation is arranged separately from the second axis of rotation, and optionally also separately from the first axis of rotation. In particular, the position of the third axis of rotation relative to the first axis of rotation changes due to the rotation of the second axis of rotation around the first axis of rotation. The spacing between the second and third axes of rotation is either constant or defined by the lever element on which these two axes of rotation are arranged. Specifically, the tab is rotated from an initial non-rotational position in a first rotary motion around the first axis of rotation, and as a result of this first rotary motion, the flap is rotated relative to the frame portion. The motion of this first rotary motion is coupled, via the lever element, to the motion of, for example, a second rotary motion of the flap. In particular, the tab, the base portion, and the lever element interact in the manner of an articulated lever, such that a first rotary movement of the tab around the first axis of rotation by means of a first angular extension causes a second rotary movement of the tab relative to the opening plane, and a first LCCC ίη / ZZΖΠZ / E / YΙΛΙ Additional rotary motion of the tab by a first additional angular extension causes a third rotary motion of the fin. In the present memory, the second rotary motion and the third rotary motion are of different magnitude. Specifically, the flap is connected to the frame portion (only) via a fourth axis of rotation, or optionally via a hinge. In the case of a hinge, not only rotational but also translational movement of the flap relative to the frame portion is possible, for example, in the case of a film hinge. In the case of a film hinge, the flap and frame portion are connected to each other via an elastically deformable section. If the fin is connected to the frame part via a fourth axis of rotation, i.e., if only rotational movement of the fin relative to the frame part around the axis is possible, the action of an articulated lever is clearly understandable from the different angular extensions of the second rotary motion and the third rotary motion. In the case of a hinged lever, as with any lever, according to the lever principle, a long stroke with little pulling or pushing force is converted into a short stroke with great force, or vice versa. The special characteristic of a hinged lever lies in the fact that the transmission ratio of the applied force to the resulting force, or of the primary stroke to the secondary stroke, varies continuously during the movement. In this memoir, it is specifically proposed that, starting from the initial position, a first rotational movement of the tab initially causes only a small second rotational movement of the fin, or that this second rotational movement only occurs at first beyond a minimal extension of the first rotational movement. If the tab rotates progressively further, i.e., to its final position, the lid rotates with increasing intensity. In the case of a constant rotational speed of the tab around the first axis of rotation, it is particularly common for the rotational speed of the fin to vary, for example, around the fourth axis of rotation. Specifically, the initial rotational speed of the fin is very low, i.e., starting from the initial position, while the rotational speed of the fin increases as the tab completes its first rotational movement. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ In particular, the acting forces or torques vary inversely with respect to the rotational speeds or the speeds of the respective rotary motion. Specifically, in the case of a very low rotational speed of the flap, a very high torque can be transmitted to the flap, such that, precisely in the region of the initial position—that is, when the flap rests against the frame to close the window—a high torque is present to seal the connection between the flap and the frame or to open the flap, i.e., to perform the second rotary motion. In particular, starting from a non-rotating initial position, the first rotational movement of the tab by at least 45 degrees, preferably at least 50 degrees, and particularly and preferably at least 55 degrees, causes the second rotational movement by at most 5 degrees, preferably at most 3 degrees, and particularly and preferably at most 2.5 degrees. Specifically, it is the case that, starting from a non-rotating initial position, the first rotational movement of the tab by at least 55 degrees causes the second rotational movement by at most 2.5 degrees. In particular, starting from the initial non-rotating position, the first rotational movement of the tab by at most 150 degrees, preferably at most 160 degrees, and particularly and preferably at most 165 degrees, causes the second rotational movement of at least 30 degrees, preferably at least 32 degrees, and particularly and preferably at least 34 degrees. In particular, it is the case that, for example, starting from the initial non-rotating position, the first rotational movement of the tab by at most 150 degrees causes the second rotational movement of at least 34 degrees. In particular, starting from the initial non-rotating position, the first rotational movement of the tab between 150 and 180 degrees causes the second rotational movement of at least 30 to 50 degrees. In particular, the fin connects to the frame part via a hinge. In particular, the frame portion is captively positioned on the opening edge. Specifically, the frame portion is positioned over the opening edge via a form-fit connection and is removable from the opening edge only by destroying the frame portion. Specifically, the frame portion is installed over the opening edge by means of plastic deformation of the frame portion. The plastic deformation, for example, LCCC ίη / ZZΖΠZ / E / YΙΛΙ can be carried out by means of a heat treatment of the frame part, for example at least local heating. Specifically, the sealing element allows for a repeatable gas-tight seal of the opening. In particular, the sealing element therefore allows not only for liquids to be sealed, but also for gas to be sealed. This way, in the specific case of carbonated liquids, an effective seal of the opening is possible even after the initial opening of the sealing element. Specifically, a first gasket is provided between the inner side and a contact surface of the frame portion, surrounding the opening. Specifically, the contact surface is oriented at least partially parallel to a partial surface of the inner side of the lid element. The first gasket is positioned in the region of this partial surface. Specifically, the first gasket is attached to the frame portion and positioned over this partial surface during the installation of the frame portion onto the lid element. Specifically, the first gasket can be produced, or is produced together with the frame portion and optionally also with the flap, during a two-component injection molding process. Specifically, a second gasket is located between the frame and the sash, encircling the window. This second gasket allows the window or opening to be sealed by means of a sealed connection between the sash and the frame. Specifically, the second gasket is positioned over the frame or the sash. Specifically, the second gasket can be produced, or is produced together with the frame and optionally also with the sash, during a two-component injection molding process. In particular, the frame part and / or the fin and / or the tab and / or the lever element is produced from a plastic with a modulus of elasticity of at least 1100 MPa [megapascals], in particular at least 1300 MPa, preferably at least 1600 MPa. Preferably, the first gasket and / or the second gasket is produced from a plastic with a Shore A hardness of at most 60, in particular at most 45, preferably at most 35. Specifically, the tab is connected to the base via a sealing element, only in its initial non-rotating position. This connection is broken when the tab is rotated for the first time. The sealing element indicates the condition of the closure or the beverage container. An intact sealing element indicates that the closure has not yet been sealed. LCCC ίη / ZZΖΠZ / E / YΙΛΙ activated, meaning the beverage container has not yet been opened. Conversely, a damaged sealing element indicates that the locking element has been activated at least once, meaning the beverage container has been opened at least once. Specifically, the base portion has a ventilation element, in which, after an initial rotational movement of the flange, a fluidic connection is formed between the inner and outer sides via the ventilation element; wherein the initial rotational movement of the flange causes a deformation of the ventilation element. Specifically, the ventilation element is positioned on the frame portion or on the fin. Specifically, the ventilation element is integrally connected to the base portion. Specifically, the ventilation element can be produced or is produced together with the frame portion and / or the fin during a two-component injection molding process. Specifically, the vent element is tubular in design and enables a fluid connection between the interior of the beverage container and its surroundings. In particular, pressure relief, i.e., between the interior of the beverage container and its surroundings, is possible through the vent element. Specifically, the vent element has, along its tubular shape, a minimum opening cross-section, preferably constant, of 1 to 4 mm². Specifically, this minimum opening cross-section is reduced locally to zero in the deformed state of the vent element, such that when the flange is in its initial position, the fluid connection is severed, and therefore venting through the vent element is no longer possible. The ventilation element can be alternatively designed, for example rigidly, such that the flange closes the minimum opening cross-section by means of a flange closing element, by virtue of the closing element assuming a position in the minimum opening cross-section. Specifically, in the initial non-rotating position of the tab, the fin forms a hermetic seal with the frame portion. After a first rotational movement of the tab, this hermetic seal can be broken by a second rotational movement of the fin. A fluid connection from the inner to the outer side is achieved solely by breaking the hermetic seal. Specifically, in the case of commercial beverage can lids, the maximum force (greatest force) required to rotate the tab is, on average, approximately 21 N [newtons]. This is, in particular, the force measured in devices of LCCC ίη / ZZΖΠZ / E / YΙΛΙ is a fully automatic opening force measurement common in beverage can lid production facilities. This is also the maximum force that the end customer / consumer must apply to open the can. In particular, the force required to rotate the tab is at most 20 N, preferably at most 15 N, particularly and preferably at most 10 N. In particular, the force required to rotate the tab can be considerably lower (specifically, reduced by more than 20%) than with conventional fasteners, because cutting the material is not required; the seals simply need to be broken by moving parts relative to each other. With conventional fasteners, material cutting occurs, for example, when cutting plastic or metal, which requires a large force or high torque. In the case of the locking element proposed herein, the function is simply to rotate the flap away from the frame to open the window or opening. In this specification, prior to flap rotation, a vent is used to release pressure, preventing the flap from moving against any internal pressure within the beverage container. However, flap rotation can also occur with low torques even without a vent or release element, as a low torque on the tab is converted into a high torque on the flap due to the implemented articulated lever principle. Specifically, the tab assumes a self-locking position at least in a non-rotating initial position or in the region of a fully rotated final position. This region encompasses an angle range of up to 10 degrees around the fully rotated final position. Specifically, this self-locking position is stable; that is, a torque is required to dislodge the tab from this position. Specifically, this self-locking position exists only in the region of the fully rotated final position. Specifically, the tab is held in the initial position, particularly after the first actuation or rotation of the tab, by means of elastic deformation of another component of the locking element. The elastic deformation of this other component allows for the formation of a form fit or a force fit, which prevents further rotational movement of the tab.This shape adjustment or force adjustment can be removed again, in particular, by actuating the tab. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ Force-fit connections require a normal force on the surfaces to be joined. Relative displacement of these surfaces is prevented as long as the opposing force caused by static friction is not exceeded. Connections are called form-fit connections if the connecting partners are held together by a geometric arrangement. Form-fit connections arise from the interlocking of at least two connecting partners. In this way, the connecting partners cannot be released from one another even in the absence of power transmission or when a power transmission is interrupted. In other words, in the case of a form-fit connection, one of the connecting partners blocks the path of the other. In particular, the tab, in an initial non-rotating position, is arranged to be protected from the environment by a protective fin. Specifically, the protective flap is rotatably connected (only) via a fifth axis of rotation to the flange. Specifically, the fifth axis of rotation is arranged at least parallel to the first, second, and third axes of rotation. Specifically, the fifth axis of rotation is arranged separately from each of the first, second, and third axes of rotation. Specifically, the protective flap is rotated in a first direction of rotation around the fifth axis of rotation for the purpose of actuating the tab and opening the flap. Specifically, in this specification, the tab is rotated in a second, opposite direction of rotation around the first axis of rotation (i.e., relative to the frame portion), such that the flap is then actuated by the lever element. Specifically, in this specification, the protective flap is supported, at least temporarily, on the locking assembly. In particular, the protective flap covers the opening and / or window and therefore allows at least parts of the closing element to be arranged in order to protect them from the environment. Specifically, the protective flap has a sealing element through which it connects, preferably cohesively, to the locking mechanism, for example, the frame, (only) before the locking mechanism is first actuated. The first movement of the protective flap causes the sealing element to break, making it possible for a user to easily identify that the beverage container has been opened at least once. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ The use of the closure assembly described above is proposed for the repeatable airtight sealing (and opening) of a beverage can. A locking element is also proposed, specifically for the locking assembly described above. The locking assembly has at least a base portion, a tab, and a lever element. The base portion comprises a frame portion, which rests on the opening edge and includes a window, and a flap, which is rotatably connected to the frame portion for the purpose of closing the window and thus the opening. The tab is rotatably connected to the frame portion via a first axis of rotation only. The lever element is connected to the tab via a second axis of rotation only and to the flap via a third axis of rotation only. In particular, the base part is a one-piece injection-molded part that is formed using at least two materials, specifically one material for at least one gasket and / or the ventilation element and one material for at least one of the frame and flap parts. Specifically, the locking element comprises three injection-molded parts: a base part, a lever element, and a tab, which are assembled to form the locking element. Specifically, these components are captively connected to each other (via the axes of rotation, specifically only via the axes of rotation). A method is also proposed for repeatedly closing an opening of a beverage container having a closure assembly, in particular the closure assembly described. The closure assembly at least comprises a lid element of the beverage container with an opening and a closure element disposed over the lid element and used to repeatedly close the opening. The lid element has an outer side and an inner side, and the opening has an opening edge and an opening plane formed by the opening edge. The closure element has at least a base portion, a tab, and a lever element. The base portion has a frame portion, disposed over the opening edge and having a window, and a tab, which is rotatably connected to the frame portion for the purpose of closing the window and thus the opening.The tab is rotatably connected (only) via a first axis of rotation to the frame portion. The lever element is connected (only) via a second axis of rotation to the tab and (only) via a third axis of rotation to the fin. Starting from an initial non-rotating position of the tab, in which the window is closed by means of the flap, the procedure has at least the following stages: LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ a) rotating the tab around the first axis of rotation by means of a first angular extension in a first rotary motion, wherein the tab is thus rotated in relation to the opening plane by means of a second rotary motion; b) perform a first additional rotary movement of the tab by a first additional angular extension, wherein the flap is thus rotated in relation to the opening plane by a third rotary movement; in which the second rotary motion and the third rotary motion are of different magnitude. In particular, preferably starting from the initial position, the tab can be rotated by a first angular extension during the course of a first rotary motion, in which the tab moves through an angular extension of zero degrees, i.e., it is not (yet) rotated. The first angular extension in this particular case is at least 5 degrees, preferably at least 15 degrees, and particularly and preferably at least 25 degrees. In particular, the tab, the base part, and the lever element interact in the manner of an articulated lever, such that a first rotary movement of the tab around the first axis of rotation by means of a first angular extension causes a second rotary movement of the flap in relation to the opening plane, and a further first rotary movement of the tab by means of a further first angular extension causes a third rotary movement of the flap. Specifically, the base portion incorporates a vent element. Following an initial rotational movement of the tab from its non-rotating position, a fluid connection is established between the inner and outer sides via the vent element, thereby achieving pressure equalization between the beverage container and its surroundings. This initial rotational movement of the tab causes the vent element to deform. Specifically, in the initial non-rotating position of the flap, the fin forms a hermetic seal with the frame. After the first rotational movement of the flap, this hermetic seal is broken by the second rotational movement of the fin. Pressure equalization between the contents of the beverage container and the environment is achieved solely by breaking the hermetic seal (between the fin and the frame). LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ The statements made with respect to the closure assembly apply equally to the closure element, the use of the closure assembly and the closure element, and the procedure, and vice versa. The use of indefinite articles (“a” and “an”), particularly in the claims and in the description reflecting those claims, should be understood as such and not in a numerical sense. When terms or components are introduced using such articles, they should be understood to be present at least in the singular, but in particular may also be present in the plural. As a precaution, it should be noted that the numerical terms (“first”, “second”,…) used herein serve primarily (and only) to distinguish between several similar items, dimensions, or processes; that is, they do not imperatively specify a dependency and / or sequence of such items, dimensions, or processes. If a dependency and / or sequence is necessary, it is explicitly specified herein or is evident to a person skilled in the art from studying the specific embodiment being described. When a component can be present in the plural (“at least one”), the description relating to one of these components may apply to all or a proportion of the multiplicity of such components, although this is not mandatory. The invention and its technical field will be discussed in more detail below based on the accompanying figures. It should be noted that the invention is not intended to be restricted by the specified exemplary embodiments. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the substantive subject matter discussed in the figures and combine them with other constituents and findings of the present description. In particular, it should be noted that the figures, and especially the proportions illustrated, are only schematic. In the figures: Figure 1 shows a lid element in a perspective view; Figure 2 shows a closing element in an exploded view illustration in perspective; Figure 3 shows a closure assembly in a cross-sectional side view; Figure 4 shows a part of the base of the closing element according to Figure 3; Figure 5 shows the closure assembly according to Figure 3 in a perspective view, with the tab in an initial position; Figure 6 shows the closure assembly according to Figure 5 in a cross-section perspective view; LCCC Ln / Zznz / E / YIAI Figure 7 shows the closure assembly according to Figure 3 in a perspective view, with the tab in a rotated position; Figure 8 shows the closure assembly according to Figure 7 in a cross-section perspective view; Figure 9 shows the closure assembly according to Figure 3 in a perspective view, with the tab in a final position; Figure 10 shows the closure assembly according to Figure 9 in a cross-section perspective view; Figure 11 shows the closing assembly according to Figure 3 in a cross-sectional side view, with the flap closing the window; Figure 12 shows the closure assembly according to Figure 11 in a cross-sectional side view, with the lid rotated by 1 degree angularly; Figure 13 shows the closure assembly according to Figures 11 and 12 in a cross-sectional side view, with the lid rotated by 10 angular degrees; Figure 14 shows the closure assembly according to Figures 11 to 13 in a cross-sectional side view, with the lid rotated by 20 angular degrees; Figure 15 shows the closure assembly according to Figures 11 to 14 in a cross-sectional side view, with the lid rotated by 30 degrees; Figure 16 shows the closure assembly according to Figures 11 to 15 in a cross-sectional side view, with the tab arranged in the final position; Figure 17 shows a closure assembly in a cross-sectional side view, with the tab in its initial position; Figure 18 shows the closure assembly according to Figure 17 in a cross-sectional side view, with the tab in a rotated position; Figure 19 shows an additional closing element in an exploded view illustration in perspective; Figure 20 shows a closure assembly with a closure element as per Figure 19 in a cross-section perspective view; Figure 21 shows the additional closure assembly according to Figure 20 in a cross-section perspective view; Figure 22 shows a protective flap closure assembly in a cross-sectional side view; LCCC ίη / ZZΖΠZ / E / YΙΛΙ Figure 23 shows the closing assembly according to Figure 22, with the protective flap in a rotated position; Figure 24 shows the closing assembly according to Figures 22 and 23, with the tab in the final position. Figure 1 shows a lid element 3 in a perspective view. The lid element 3 has an outer side 6, an inner side 7, and an opening 4. The opening 4 has an opening edge 8 and an opening plane 9 formed by the opening edge 8. The lid element 3 connects or can be connected to the beverage container 2. The lid element 3 is not separately connected to (only destructively separable from) the beverage container 2. The inner side 7 of the lid element 3 forms that side of the lid element 3 facing the contents of the beverage container 2, with the outer side 6 of the lid element 3 forming that side of the lid element 3 facing away from the contents and the surrounding environment 31. The opening 4 of the lid element 3 is the only pouring opening for the contents of the beverage container 2. Figure 2 shows a closure element 5 in an exploded view, arranged in perspective. Figure 3 shows a closure assembly 1 in a side section view. Figure 4 shows a base part 10 of the closure element 5 as shown in Figure 3. Figures 2 through 4 will be described together below. Reference is made to the statements relating to Figure 1. The closing assembly 1 comprises a lid element 3 with an opening 4 and a closing element 5 disposed over the lid element 3 and used to repeatedly close the opening 4. The lid element 3 has an outer side 6 and an inner side 7, and the opening 4 has an opening edge 8 and an opening plane 9 formed by the opening edge 8. The closing element 5 has a base portion 10, a tab 11, and a lever element 12. The base portion 10 has a frame portion 13, disposed over the opening edge 8 and having a window 14, and a flap 15, which is rotatably connected to the frame portion 13 for the purpose of closing the window 14 and thus the opening 4. The tab 11 is rotatably connected via a first rotation axis 16 to the frame portion 13.Lever element 12 is connected via a second rotation axis 17 to tab 11 and via a third rotation axis 18 to flap 15. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ A new state of the closing element 5, as illustrated in Figure 3, refers to the state of the closing element 5 before the tab 11 is actuated, i.e., rotated, for the first time. In the new state, tab 11 is in its initial position 20, i.e., a non-rotating state. If tab 11 is in its initial non-rotating position 20, flap 15 has also not rotated, and therefore window 14 or opening 4 is closed. The tab 11 can be rotated between the initial non-rotating position 20 and a final position 32 rotated to its maximum extension (see Figures 9 and 10). In the final position 32 of the tab 11, the flap 15 is in a fully rotated position, and the window 14 or opening 4 opens to its maximum extension. In the initial position 20, the contents of the beverage container 2 are gas-tight with respect to the environment 31 of the beverage container 2. The closing element 5 is formed as a single piece; that is, the individual components—base part 10, tab 11, and lever element 12—are captively connected to each other. As can be seen in Figure 2, these components can be produced independently of each other and connected during an assembly process. The first rotation axis 16 and the second rotation axis 17 are arranged parallel to each other and spaced 19 apart. Frame part 13 is positionally fixed and immovable on the opening edge 8. Lever element 12, flap 15, and tab 11 are connected to cover element 3 via frame part 13. Lever element 12, flap 15, and tab 11 are arranged so that they are movable relative to frame part 13. In particular, the third axis 18 of rotation is also arranged parallel to the other axes 16, 17 of rotation. During a rotary motion of tab 11, tab 11 in particular is rotated relative to frame part 13 around the first rotation axis 16. Due to the spacing 19 between the first rotation axis 16 and the second rotation axis 17, the second rotation axis 17, i.e., the connection between lever element 12 and tab 11, itself rotates around the first rotation axis 16 during the course of this first rotary motion 21. The third rotation axis 18 is arranged separately from the second rotation axis 17, and also separately from the first rotation axis 16. A position of the third rotation axis 18 in The relationship with the first axis 16 of rotation changes due to the rotation of the second axis 17 of rotation around the first axis 16 of rotation. The spacing between the second axis 17 of rotation and the third axis 18 of rotation is constant, or is defined by the lever element 12 on which said two axes 17, 18 of rotation are arranged. The tab 11 is rotatable from an initial non-rotatable position 20 in a first rotary motion 21 about the first axis 16 of rotation, and as a result of this first rotary motion 21, the flap 15 is rotatable with respect to the frame part 13. The movement of the first rotary motion 21 is coupled via the lever element 12 to a second rotary motion 23 of the flap 15. The tab 11, the base part 10, and the lever element 12 interact in the manner of an articulated lever, such that a first rotary movement 21 of the tab 11 around the first axis 16 of rotation by means of a first angular extension 22 causes a second rotary movement 23 of the flap 15 in relation to the opening plane 9, and an additional first rotary movement 21 of the tab 11 by means of an additional first angular extension 22 causes a third rotary movement 24 of the flap 15. In the present memory, the second rotary movement 23 and the third rotary movement 24 are of different magnitudes (see figures 7 to 10 and 11 to 16). The fin 15 is connected to the frame part 13 via a fourth rotation axis 33. The fourth rotation axis 33 is positionally and fixedly arranged between the frame part 13 and the fin 15. The fin 15 can also be connected to the frame part 13 via a hinge 25, whereby the fin 15 can perform not only rotational movement relative to the frame part 13 but also translational movement (not illustrated herein). Starting from the initial position 20, a first rotary movement 21 of the tab 11 initially causes only a small second rotary movement 23 of the fin 15, or this second rotary movement 23 only occurs at the first point beyond a minimal extension of the first rotary movement 21. If the tab 11 is rotated further and progressively, i.e., to the final position 32 of the tab 11, the fin 15 is rotated with increasing intensity. In the case of a constant rotational speed of tab 11 around the first axis 16 of rotation, the rotational speed of fin 15 around the fourth axis 33 of rotation varies. The rotational speed of fin 15 is initially very low. LCCC ίη / ZZΖΠZ / E / YΙΛΙ that is, starting from the initial position 20, while the rotational speed of the fin 15 increases as a first rotary movement 21 of the tab 11 progresses. The driving forces or torques vary inversely with respect to the rotational speeds or the speeds of the respective rotary motion. Therefore, in the case of a very low rotational speed of flap 15, a very high torque can be transmitted to flap 15, such that, specifically in the region of the initial position 20, i.e., when flap 15 is supported against frame part 13 for the purpose of closing window 14, a high torque is present to seal the connection between flap 15 and frame part 13 or to open flap 15, i.e., to perform the second rotary motion 23. Frame part 13 is captively positioned on opening edge 8. Frame part 13 is fitted onto opening edge 8 via a form-fit connection and can only be removed from opening edge 8 by destroying frame part 13. Frame part 13 is installed onto opening edge 8 by means of plastic deformation of the frame part 13. This plastic deformation can be achieved, for example, by heat treatment of frame part 13, such as local heating. Between the inner side 7 and a contact surface 26 of frame part 13, a first gasket 27 is arranged surrounding the opening 4. The contact surface 26 is oriented parallel to a partial surface of the inner side 7 of the cover element 3. The first gasket 27 is positioned in the region of this partial surface. The first gasket 27 is attached to frame part 13 and positioned over this partial surface during the installation of frame part 13 onto cover element 3. The first gasket 27 can be produced, or produced together with frame part 13, and optionally also with the fin 15, during a two-component injection molding process. It is also optional for the first gasket 27 to be produced separately and then positioned in the intended location between the contact surface 26 and cover element 3. Between frame part 13 and flange 15, a second gasket 28 is arranged around the window 14. This second gasket 28 allows the window 14 or opening 4 to be sealed by means of a sealed connection between flange 15 and frame part 13. The second gasket 28 is positioned over frame part 13. The second gasket 28 can be produced separately or together with frame part 13 during a two-component injection molding process. Alternatively, the second gasket 28 can be produced separately and then positioned as intended between flange 15 and frame part 13. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ The tab 11 is connected, only in an initial non-rotating position 20, via a sealing element 29 to the base part 10. The connection via the sealing element 29 is broken when the tab 11 makes its first rotational movement 21. The sealing element 29 serves to indicate the status of either the locking element 5 or the beverage container 2. An intact sealing element 29 indicates that the locking element 5 has not yet been activated, meaning the beverage container 2 has not yet been opened. Conversely, a damaged sealing element 29 indicates that the locking element 5 has been activated at least once, meaning the beverage container 2 has been opened at least once. Figure 5 shows closure assembly 1 according to Figure 3 in a perspective view, with tab 11 in its initial position 20. Figure 6 shows closure assembly 1 according to Figure 5 in a sectional perspective view. Figure 7 shows closure assembly 1 according to Figure 3 in a perspective view, with tab 11 in a rotated position. Figure 8 shows closure assembly 1 according to Figure 7 in a sectional perspective view. Figure 9 shows closure assembly 1 according to Figure 3 in a perspective view, with tab 11 in its final position 32. Figure 10 shows closure assembly 1 according to Figure 9 in a sectional perspective view. Figure 11 shows the closure assembly 1 according to Figure 3 in a cross-sectional side view, with the flap 15 closing the window 14. Figure 12 shows the closure assembly 1 according to Figure 11 in a cross-sectional side view, with the flap 15 having been rotated by one degree.Figure 13 shows the closure assembly 1 according to Figures 11 and 12 in a cross-sectional side view, with the flap 15 rotated by 10 degrees. Figure 14 shows the closure assembly 1 according to Figures 11 to 13 in a cross-sectional side view, with the flap 15 rotated by 20 degrees. Figure 15 shows the closure assembly 1 according to Figures 11 to 14 in a cross-sectional side view, with the flap 15 rotated by 30 degrees. Figure 16 shows the closure assembly 1 according to Figures 11 to 15 in a cross-sectional side view, with the tab 11 in its final position 32. Figures 5 to 16 will be described together below. Reference is made to the statements relating to Figures 2 to 4. Starting from an initial non-rotating position 20 (see Figures 5 and 6), the first rotary movement 21 of tab 11 by at least approximately 55 degrees causes the second rotary movement 23 of fin 15 by approximately one degree (see Figure 12). If the first rotary movement 21 of tab 11 is approximately 90 degrees, fin 15 is further rotated by the The third rotary motion 24, and the complete second rotary motion 23 (i.e., the preceding second rotary motion 23 and the third rotary motion 24 together) is approximately 10 angular degrees (see Figure 13). If the first rotary motion 21 of tab 11 is approximately 120 angular degrees, the second rotary motion 23 is approximately 20 angular degrees (see Figure 14). If the first rotary motion 21 of tab 11 is approximately 135 angular degrees, the second rotary motion 23 is approximately 30 angular degrees (see Figure 15). If the first rotary motion 21 of tab 11 is approximately 170 angular degrees, the second rotary motion 23 is approximately 45 angular degrees (see Figure 15). Starting from the initial non-rotating position 20, the first rotary movement of tab 11 is approximately 180 angular degrees, that is, in the final position 32 it causes the second rotary movement 23 of approximately 45 angular degrees (see figure 16). Starting from the initial position 20, a first rotary movement 21 of the tab 11 initially causes only a small second rotary movement 23 of the fin 15, or this second rotary movement 23 only occurs at the first point beyond a minimal extension of the first rotary movement 21 (Figures 11 and 12). If the tab 11 is rotated progressively further, i.e., to the final position 32 of the tab 11, the fin 15 is rotated with increasing intensity. In the case of a constant rotational speed of tab 11 around the first axis 16 of rotation, the rotational speed of fin 15 around the fourth axis 33 of rotation varies. The rotational speed of fin 15 is initially very low, i.e., starting from the initial position 20, while the rotational speed of fin 15 increases as the first rotational movement 21 of tab 11 progresses. The driving forces or torques vary inversely with respect to the rotational speeds or the speeds of the respective rotary motion. Therefore, in the case of a very low rotational speed of flap 15, a very high torque can be transmitted to flap 15, such that, specifically in the region of the initial position 20, i.e., when flap 15 is supported against frame part 13 for the purpose of closing window 14, a high torque is present to seal the connection between flap 15 and frame part 13 or to open flap 15, i.e., to perform the second rotary motion 23. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ The tab 11 assumes a self-locking position at its maximum final rotation. This self-locking position is stable; that is, a torque is required to move the tab 11 from this position. After the first actuation or rotation of the tab 11, the tab 11 is held in the initial position 20 by means of elastic deformation of another component of the locking element 5. The elastic deformation of the other component allows the formation of a form fit or a force fit, which prevents further rotational movement or backward rotational movement of the tab 11. This form fit or force fit can be removed, in particular, by actuating the tab 11. Figure 17 shows a closure assembly 1 in a side section view, with tab 11 in its initial position 20. Figure 18 shows the closure assembly 1 as shown in Figure 17 in a side section view, with tab 11 in a rotated position. Figures 17 and 18 will be described together below. Reference is made to the statements relating to Figures 2 through 16. The base part 10 has a ventilation element 30, in which, after a first rotational movement 21 of the tab 11, a fluidic connection is formed between the inner side 7 and the outer side 6 by means of the ventilation element 30. The first rotational movement 21 of the tab 11 causes a deformation of the ventilation element 30. The ventilation element 30 is positioned on the fin 15. The ventilation element 30 is integrally connected to the base part 10. The ventilation element 30 can be produced separately or together with the frame part 13 and the fin 15 during a two-component injection molding process. The vent element 30 is tubular in design and enables a fluidic connection between the interior or inner side 7 of the beverage container 3 and the environment 31 of the beverage container 2. Discharge, i.e., pressure equalization between the interior of the beverage container 2 and the environment 31 of the beverage container 2, is possible through the vent element 30. The vent element 30 has, along its tubular shape, a preferably constant minimum opening cross-section of 1 to 4 mm². This minimum opening cross-section is at least locally reduced to zero in the deformed state of the vent element 30, such that when the flange 11 is in its initial position 20, the fluidic connection is cut off, and therefore venting through the vent element 30 is not possible (see Figure 17). LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ In the case of the proposed closing element 5, the lid 15 is simply rotated away from the frame part 13 to open the window 14 or the opening 5. In this specification, prior to the rotation of the lid 15, venting occurs through a vent element 30, so that the lid 15 does not need to move against any internal pressure that may exist in the beverage container 2. However, the rotation of the lid 15 can also be achieved with low torques even without a vent or vent element 30, because a low torque on the tab 11 is converted into a high torque on the lid 15 due to the articulated lever principle implemented. Figure 19 shows an additional fastener element 5 in an exploded view in perspective. Figure 20 shows a fastener assembly 1 with a fastener element 5 as shown in Figure 19 in a sectional perspective view. Figure 21 shows the additional fastener assembly 1 as shown in Figure 20 in a sectional perspective view. Figures 19 to 21 will be described together below. Reference is made to the statements relating to Figures 2 to 18. In the case of the additional closing element 5, unlike the closing element 5 illustrated in Figures 2 to 18, the flap 15 is plug-in connected to the frame part 13 via a fourth rotation axis 33. Additionally, the lid element 3 is illustrated in this case in a different production state, specifically only with an initially angled outer edge and not with a folded outer edge (see figures 3 to 16). In particular, however, the arrangement of the closure element 5 is substantially independent of the production state of the lid element 3. Optionally, only the opening 4 in the lid element 3 is required for the placement of the closure element 5, while other deformation processes could then also take place at a later time. However, it is conventional for the lid element 3 to be fully deformed and for the closure element to then be placed on top of the lid element 3. The lid element 3 and the closure element 5 are then connected to the rest of the beverage container 2, i.e., to the base and wall, to form the finished beverage container 2. Whereas the base part 10 in the case of the closing element according to figures 2 to 18 is formed as a single piece (the frame part 13 and the fin 15 are cohesively connected on the fourth axis 33 of rotation), the base part 10 in the case of the additional closing element according to figures 19 to 21 is in the form of at least two parts (part 13 LCCC ίη / ZZΖΠZ / E / YΙΛΙ of frame and cover 15 form a plug-in connection, with the fourth axis 33 of rotation formed by means of the connection). Figure 22 shows a closure assembly 1 with a protective flap 34 in a side section view. Figure 23 shows the closure assembly 1 according to Figure 22, with the protective flap 34 in a rotated position. Figure 24 shows the closure assembly 1 according to Figures 22 and 23, with the flap 11 in a final position 32. Figures 22 to 24 will be described together below. Reference is made to the statements relating to Figures 19 to 21. Unlike the locking element 5 illustrated in Figures 19 to 21, the locking element 5 illustrated herein has a protective flap 34 that is rotatably connected to the tab 11, which now has a shorter design, via a fifth pivot axis 35. The protective flap 34 covers the opening 4 and / or the window 14, and therefore at least parts of the locking element 5 are arranged to protect themselves from the surrounding environment 31. The protective flap 34 has a sealing element 29 through which it connects to the frame part 13. The first movement of the protective flap 34 causes the sealing element 29 to be destroyed. It can be seen in Figure 23 that the protective flap 34 (starting from an initial position 20) initially moves in a first direction of rotation, and therefore the sealing element 29 is destroyed. It can be seen in Figures 23 and 24 that a further rotational movement of the protective flap 34 then causes the tab 11 to rotate (first rotational movement 21 in Figure 23), in which the protective flap 34 at least temporarily rests on the cover element 3. In Figure 24, the protective flap 34 and the tab 11 are arranged in a fully rotated final position 32, with the flap 15 likewise in an arrangement in which it has been rotated by the second rotary movement 23 and by the third rotary movement 24. LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ List of reference designations Closure set Drink container Cover element Opening Closing element External side Inner side Opening edge Opening plane Base part Eyelash Lever element Part of frame Window Fin First axis of rotation Second axis of rotation Third axis of rotation Spacing Starting position First rotary movement First angular extension Second rotary motion Third rotary motion Hinge Contact surface First meeting Second meeting Seal element Ventilation element Around Final position LCCC ίη / ΖΖΠΖ / Ε / ΥΙΛΙ Fourth axis of rotation Protective fin Fifth axis of rotation
Claims
1. A closure assembly (1) for a beverage container (2), comprising at least one lid element (3) with an opening (4) and comprising a closure element (5) disposed on the lid element (3) and serving to repeatedly close the opening (4); wherein the lid element (3) has an outer side (6) and an inner side (7), and the opening (4) has an opening edge (8) and an opening plane (9) formed by the opening edge (8); wherein the closure element (5) has at least a base portion (10), a tab (11), and a lever element (12); wherein the base part (10) has a frame part (13), which is disposed over the opening edge (8) and has a window (14), and a flap (15), which is rotatably connected to the frame part (13) for the purpose of closing the window (14) and thus the opening (4);wherein the tab (11) is rotatably connected via a first axis (16) of rotation to the frame part (13); wherein the lever element (12) is connected via a second axis (17) of rotation to the tab (11) and via a third axis (18) of rotation to the fin (15).; 2. Locking assembly (1) according to claim 1, wherein the first rotation axis (16) and the second rotation axis (17) are arranged in parallel and with a spacing (19) between them.
3. Closure assembly (1) according to any one of the preceding claims, wherein the tab (11) can be rotated from an initial unrotated position (20) in a first rotary motion (21) about the first axis (16) of rotation and, as a result of this first rotary motion (21), the flap (15) can be rotated with respect to the frame portion (13).
4. A closing assembly (1) according to any one of the preceding claims, wherein the tab (11), the base portion (10), and the lever element (12) interact in the manner of a hinged lever, such that a first rotary movement (21) of the tab (11) about the first axis (16) of rotation by means of a first angular extension (22) causes a second rotary movement (23) of the flap (15) relative to the opening plane (9), and a further first rotary movement (21) of the tab (11) by means of a further first angular extension (22) causes a third rotary movement (24) of the flap (15), wherein the second rotary movement (23) and the third rotary movement (24) are of different magnitudes. LCCC ίη / ZZΖΠZ / E / YΙΛΙ 5. Locking assembly according to claim 4, wherein, starting from an initial non-rotated position (20), the first rotary movement (21) of the tab (11) by at least 45 angular degrees causes the second rotary movement (23) of at most 5 angular degrees.
6. Locking assembly (1) according to claim 5, wherein, starting from the initial unrotated position (20), the first rotary movement (21) of the tab (11) by at most 150 angular degrees causes the second rotary movement (23) of at least 30 angular degrees.
7. Closure assembly (1) according to any one of the preceding claims, wherein the flap (15) is connected to the frame part (13) via a hinge (25) or via a fourth (33) pivot axis.
8. Closure assembly (1) according to any one of the preceding claims, wherein the frame portion (13) is captively arranged on the opening edge (9).
9. Closure assembly (1) according to any one of the preceding claims, wherein the closure element (5) allows, in a repeatable manner, a gas-tight seal of the opening (4).
10. Closure assembly (1) according to any one of the preceding claims, wherein, between the inner side (7) and a contact surface (26) of the frame part (13), a first gasket (27) is arranged surrounding the opening (4).
11. Closure assembly (1) according to any one of the preceding claims, wherein, between the frame part (13) and the flap (15), a second seal (28) is arranged surrounding the window (14).
12. A closing assembly (1) according to any one of the preceding claims, wherein the tab (11) is connected, only in an initial unrotated position (20), through a sealing element (29) to the base portion (10); wherein the connection through the sealing element (29) is destroyed when a first rotary movement (21) of the tab (11) is performed for the first time.
13. A closure assembly (1) according to any one of the preceding claims, wherein the base portion (10) has a ventilation element (30), wherein, after a first rotational movement (21) of the tab (11), a fluidic connection is formed between the inner side (7) and the outer side (6) by means of the ventilation element (30); wherein the first rotational movement (21) of the tab (11) causes a deformation of the ventilation element (30). LCCC ίη / ZZΖΠZ / E / YΙΛΙ 14. Closure assembly (1) according to any one of the preceding claims 1 to 12, wherein, in the initial unrotated position (20) of the tab (11), the flap (15) forms a hermetic connection with the frame portion (13), wherein, after a first rotational movement (21) of the tab (11), the hermetic connection can be removed as a result of the second rotational movement (23) of the flap (15); wherein a fluidic connection of the inner side (7) with the outer side (6) is produced exclusively by means of the removal of the hermetic seal.
15. Closure assembly (1) according to any one of the preceding claims, wherein the force required for the first rotary movement (21) of the tab (11) is at most 20 newtons.
16. Locking assembly (1) according to any one of the preceding claims, wherein the tab (11) adopts a self-locking position in each case in an initial unrotated position (20) and in the region of a final position (32) rotated to the maximum.
17. Closure assembly (1) according to any one of the preceding claims, wherein the tab (11), in an initial unrotated position (20), is arranged to be protected from the environment (31) by means of a protective flap (34).
18. Closure assembly (1) according to claim 17, wherein the protective flap (34) is rotatably connected via a fifth rotation axis (35) to the tab (11).
19. Use of a closure assembly (1) according to any one of the preceding claims 1 to 18 for the repeatable airtight closure of a beverage can.
20. A method for repeatedly closing an opening (4) of a beverage container (2) having a closure assembly (1), wherein the closure assembly at least comprises a lid element (3) with an opening (4) and comprises a closure element (5) disposed over the lid element (3) and serving to repeatedly close the opening (4); wherein the lid element (3) has an outer side (6) and an inner side (7), and the opening (4) has an opening edge (8) and an opening plane (9) formed by the opening edge (8); wherein the closure element (5) has at least a base portion (10), a tab (11), and a lever element (12); wherein the base part (10) has a frame part (13), which is disposed over the opening edge (8) and has a window (14), and a flap (15), which is rotatably connected to the frame part (13) for the purpose of closing the window (14) and thus the opening (4);wherein the tab (11) is rotatably connected via a first axis (16) of rotation to the frame part (13); wherein the lever element (12) is connected via a second axis (17) of rotation to the tab (11) and via a third axis (18) of rotation to the flap (15); wherein, starting from an initial unrotated position (20) of the tab (11), in which the window (14) is closed by means of the flap (15), the procedure has at least the following steps: a) rotating the tab (11) about the first axis (16) of rotation by means of a first angular extension (22) in a first rotary motion (21), in which the flap (15) is thereby rotated relative to the opening plane (9) by means of a second rotary motion (23);b) performing a first additional rotary movement (21) of the tab (11) by means of a first additional angular extension (22), wherein the flap (15) rotates, therefore, in relation to the opening plane (9) by means of a third rotary movement (24); wherein the second rotary movement (23) and the third rotary movement (24) are of different magnitude.
21. Method according to claim 20, wherein the base portion (10) has a vent element (30), wherein, after a first rotational movement (21) of the tab (11) away from the initial unrotated position (20), a fluidic connection is formed between the inner side (7) and the outer side (6) by means of the vent element (30), and pressure compensation is thereby achieved between the beverage container (2) and the environment (31); wherein the first rotational movement (21) of the tab (11) causes a deformation of the vent element (30).
22. Method according to claim 20, wherein, in the initial unrotated position (20) of the tab (11), the fin (15) forms a hermetic connection with the frame part (13), wherein, after a first rotational movement (21) of the tab (11), the hermetic connection is removed as a result of the second rotational movement (23) of the fin (15); wherein pressure compensation between a beverage container (2) and the environment (31) is achieved exclusively by means of removing the hermetic seal.