EP4230368A2 - Closing device with an anchor ring and a tamper ring and its method of manufacturing - Google Patents

Abstract

The present invention relates to a closure device for closing a container, comprising a closure cap with a cap cover extending perpendicularly to a closure axis and a cap skirt adjoining the cap cover on the circumferential side and extending axially, an anchor ring, a guarantee ring and a connecting element, the closure device having a The closure base can be connected in that the closure cap either closes an opening in the closure base with a closing movement or opens it with an opening movement and that the anchor ring remains in engagement with the closure base both in an open position of the closure cap and in a closed position of the closure cap, with the connecting element remaining connects the locking cap to the anchor ring.

Description

The present invention relates to a closure device for closing a container, a semi-finished product for a closure device, a method for producing a closure device and a closure device produced by this method.

From the EP 3 805 126 A1 closure devices for containers are known which have a closure cap, an anchor ring and a guarantee ring, the anchor ring being permanently connected to the closure cap via a connecting band. The permanent connection to the anchor ring ensures that the closure cap does not get lost when used by a consumer of the container equipped with the closure device and does not end up in the environment as unwanted waste. The guarantee ring also represents a clearly visible guarantee security that is well known to consumers.

In the case of these closure devices described in the prior art, however, tearable webs are always arranged both between the anchor ring and the guarantee ring and between the closure cap and the anchor ring. While the bars between anchor ring and guarantee ring can be broken with a simple turning movement, the consumer has to use force to break the bars between anchor ring and cap. The tearing force is often too high for comfortable and easy opening.

The attachment of tearable webs between the anchor ring and the guarantee ring is absolutely necessary, since this is precisely how a guarantee security is provided.

The attachment of easily tearable webs between the anchor ring and the cap is not absolutely necessary as an additional safeguard.

Against this background, it is an object of the present invention to provide a closure device with a closure cap connected to an anchor ring, which allows simplified opening.

This object is achieved according to the invention by a closure device for closing a container, comprising a closure cap with a cap lid extending radially to a closure axis and a cap skirt adjoining the cap lid on the circumference and extending axially, an anchor ring, a guarantee ring and a connecting element, the closure device being such is formed and can be connected to a closure base, that the closure cap optionally closes an opening of the closure base by a closing movement or opens it by an opening movement and that the anchor ring remains in engagement with the closure base both in an open position of the closure cap and in a closed position of the closure cap , wherein the connecting element connects the closure cap to the anchor ring, wherein the connecting element is designed in such a way that the closure cap remains connected to the anchor ring via the connecting element even after an opening movement of the closure cap has been carried out for the first time, wherein a guide means is provided on the cap jacket of the closure cap, which is arranged and designed in such a way that it can be brought into engagement with corresponding guide means on the closure base and that the opening movement and the closing movement of the closure cap include a rotary movement of the closure cap about an axis of rotation aligned along the closure axis, with the anchor ring being over before the first opening movement of the closure cap at least one tearable bar is connected to the guarantee ring, wherein the anchor ring, the guarantee ring and the at least one tearable bar are designed in such a way that the at least one tearable bar can be torn by the opening movement of the closure cap for the first time, so that the guarantee ring can be detached from the anchor ring, wherein the closure cap is connected to the anchor ring exclusively via the connecting element both before the first opening movement and after the first opening movement of the closure cap.

In one embodiment of the closure device according to the invention, the closure base can be a container neck formed in one piece with the container.

However, in one embodiment of the closure device according to the invention, the closure base can also be a base element which is a further component of the closure device and is brought into connection with the container in order to provide a pouring spout for the container.

In one embodiment of the closure device according to the invention, the closure device comprises a base element designed as a closure base, the base element comprising the guide means corresponding to the guide means of the closure flap.

The object on which the invention is based is also achieved by a semi-finished product for a closure device comprising a closure cap with a cap cover extending radially to a closure axis and a cap jacket adjoining the cap cover on the circumferential side and extending axially, an anchor ring, a guarantee ring and a connecting element, wherein the Connecting element connects the closure cap to the anchor ring, the closure cap being connected to the anchor ring via at least one non-tearable web in addition to the connecting element, the connection element and the non-tearable web being designed and arranged in such a way that the closure cap relative to the anchor ring in is fixed in an essentially unchangeable position, the connecting element being designed in such a way that when a user uses the closure device resulting from cutting or punching the non-tearable web in connection with a closure base, the closure cap can also be pulled over the connecting element after an opening movement of the closure cap remains connected to the anchor ring, with a guide means being provided on the cap jacket of the closure cap, which is arranged and designed in such a way that it can be brought into engagement with a corresponding guide means on a closure base, the anchor ring of the closure cap being connected to the guarantee ring is connected.

Within the meaning of the present invention, a semi-finished product is to be understood as an intermediate product in the production of a closure device, the intermediate product not being identical to the finished end product. In particular, the semi-finished product can differ from the finished closure device in that at least one further process step of the manufacturing process must be carried out, e.g. cutting or punching, in order to arrive at a finished closure device.

For the purposes of the present invention, a non-tearable web is understood to mean a web which cannot be torn with the ordinary physical force applied in everyday life by a consumer (user) of containers with closure devices. In other words, a non-tearable web in the sense of the present invention is to be understood as a web that can only be torn or destroyed by applying an extraordinary amount of force--relative to the opening of container closures--or with the aid of tools.

In one embodiment, the anchor ring and the at least one non-tearable bar are designed in such a way that the at least one non-tearable bar cannot be torn when the closure cap is opened for the first time, so that the guarantee ring cannot be detached from the anchor ring in this way.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the anchor ring is a complete ring extending over an angle of 360 degrees and the guarantee ring is an additional complete ring extending over an angle of 360 degrees.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the connecting element is a hinge element, the hinge element being designed and arranged in such a way that the closure cap can be pivoted relative to the anchor ring about a pivot axis perpendicular to the closure axis. With regard to the semi-finished product, this means that the hinge allows the closure cap to pivot when the non-tearable web is cut.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the connecting element comprises an elongate connecting band.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the connecting element is a single, elongate connecting band.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the guide means of the closure cap is an internal thread. This can then be brought into engagement with a corresponding external thread of the closure base.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the guide means of the closure cap is a bayonet element.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the bayonet element comprises at least one projection which projects radially inwards and extends in the circumferential direction in the closed state of the closure cap in a defined plane perpendicular to the axis of the closure, or at least one projection which is formed radially outwards and in the circumferential direction, in the closed state of the closure cap, in a defined plane perpendicular to the closure axis extending recess.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, a means for torque transmission between the anchor ring and the closure cap is provided.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the cap jacket has a protrusion protruding in the axial direction, which is arranged in a correspondingly designed recess of the anchor ring when the closure cap is closed.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the anchor ring has a projection protruding in the axial direction, which is arranged in a corresponding recess of the cap jacket when the closure cap is closed.

This combination of projection and recess serves to transmit a torque applied to the closure cap or the anchor ring, such as this acts when a consumer rotates the opening to open it, to the other element (anchor ring or closure cap). It is not absolutely necessary that the projection and the edge of the recess do not touch when there is no torque. Torque acting unilaterally on one of the anchor ring or cap elements (which occurs when the consumer grasps only one of the two elements during the opening rotary movement) causes a slight but sufficient relative displacement of the anchor ring and cap so that the protrusion and the edge of the corresponding recess engage so that the torque can be transmitted from the cap to the anchor ring or from the anchor ring to the cap.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the anchor ring is arranged in the axial direction between the closure cap and the guarantee ring.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the anchor ring has stop elements which can be brought into engagement with corresponding stop elements of the closure base in order to limit a rotational movement between the anchor ring and the closure base.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the closure cap has stop elements engageable with corresponding stop members of the closure base to limit rotational movement between the closure cap and the closure base.

In one embodiment of the closure device according to the invention or in one embodiment of the semi-finished product according to the invention, the guarantee ring has stop elements which can be brought into engagement with corresponding stop elements of the lock base in order to limit a rotary movement between the guarantee ring and the lock base.

In one embodiment of the closure device according to the invention, the closure device comprises a base element, the base element having a channel extending along the closure axis with an inlet opening and a pouring opening. In this embodiment, the base element represents the closure base.

In one embodiment of the closure device according to the invention, the base element has the guide means that correspond to the guide means of the cap jacket.

In one embodiment of the closure device according to the invention, the closure device comprises a cutting device with a cutting element which is arranged at least in sections within the channel.

In one embodiment of the closure device according to the invention, the closure cap comprises a driver device, the driver device and the cutting device being designed and arranged in such a way that when the closure cap is opened for the first time, the cutting element moves from an initial position of the cutting element to a position pointing from the pouring opening to the inlet opening Direction is effected, so that the cutting element is at least partially movable through the input opening.

In one embodiment of the closure device according to the invention, the closure device is designed such that when the closure cap is opened for the first time, the tearable webs tear first and then the cutting element moves at least in sections through the inlet opening.

In one embodiment of the semi-finished product according to the invention, a single non-tearable web is provided. This is advantageous because a single web can be cut up from the semi-finished product with little effort during the manufacturing process of a closure device.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over a circumferential angle of at least 1 degree.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over a circumferential angle of at least 2 degrees.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over a circumferential angle of at least 5 degrees.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over a circumferential angle of at most 15 degrees.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over a circumferential angle of at most 20 degrees.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over a circumferential angle of at most 25 degrees.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over an arc length of at least 1 millimeter.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over an arc length of at least 2 millimeters.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over an arc length of at most 6 millimeters.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web extends over an arc length of at most 12 millimeters.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web has a reduced wall thickness compared to the cap jacket adjoining the web in the axial direction.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web has a reduced wall thickness compared to the anchor ring adjoining the web in the axial direction.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web has a reduced wall thickness compared to the cap jacket adjoining the web in the axial direction and the anchor ring adjoining the web in the axial direction.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web has a reduced wall thickness compared to the cap jacket adjoining the web in the axial direction and/or the anchor ring adjoining the web in the axial direction, with the reduction of the Wall thickness relative to the cap jacket and/or anchor ring is between 25 and 75 percent, preferably between 25 and 50 percent and particularly preferably between 25 and 35 percent.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web is a material film extending in the circumferential direction.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web is connected on the one hand to the radially outward-pointing outer surface of the cap jacket and on the other hand to the radially outward-pointing outer surface of the anchor ring.

In one embodiment of the semi-finished product according to the invention, the inner surface of the non-tearable web pointing radially inwards corresponds to an imaginary axial extension of the inner surface of the cap skirt pointing radially inwards.

In one embodiment of the semi-finished product according to the invention, the at least one non-tearable web is made from the same material as the closure cap and the anchor ring.

In one embodiment of the semi-finished product according to the invention, the semi-finished product is obtained by an injection molding process.

The object on which the invention is based is also achieved by a method for producing a closure device with the steps: (a) producing a semi-finished product according to the invention by an injection molding method; (b) Cutting or punching the at least one non-tearable web so that the closure cap is connected to the anchor ring exclusively via the connecting element. Step (b) takes place after step (a).

In one embodiment of the method according to the invention for producing the closure device, the following further step is provided: (c) Assembling the according to the invention Semi-finished product and at least one further element such as a base element and/or a cutting device.

In one embodiment of the method according to the invention, step (b) takes place before step (c).

In one embodiment of the method according to the invention, step (b) takes place after step (c).

The object on which the invention is based is also achieved by a closure device obtainable by a method according to the invention for producing a closure device with the steps: (a) producing a semi-finished product according to the invention by an injection molding process; (b) Cutting or punching the at least one non-tearable web so that the closure cap is connected to the anchor ring exclusively via the connecting element.

In one embodiment of this closure device according to the invention, step (c) of the method according to the invention is also provided.

Fig. 1:

eine Frontalansicht einer ersten Ausführungsform eines erfindungsgemäßen Halbzeuges,

Fig. 2:

eine Seitenansicht der ersten Ausführungsform eines erfindungsgemäßen Halbzeuges,

Fig. 3:

eine Schnittansicht der ersten Ausführungsform eines erfindungsgemäßen Halbzeuges,

Fig. 4:

eine perspektivische Ansicht einer ersten Ausführungsform der erfindungsgemäßen Verschlussvorrichtung in einer halb geöffneten Position.

Fig. 5:

eine Frontalansicht einer zweiten Ausführungsform eines erfindungsgemäßen Halbzeuges,

Fig. 6:

eine Seitenansicht der zweiten Ausführungsform eines erfindungsgemäßen Halbzeuges,

Fig. 7:

eine Schnittansicht der zweiten Ausführungsform eines erfindungsgemäßen Halbzeuges,

Fig. 8:

eine perspektivische Ansicht einer zweiten Ausführungsform einer erfindungsgemäßen Verschlussvorrichtung in einer halb geöffneten Position,

Fig. 9:

eine erste Schnittansicht einer dritten Ausführungsform eines erfindungsgemäßen Halbzeuges (unmittelbar nach dem Spritzgießen),

Fig. 10:

eine zweite Schnittansicht der Ausführungsform des Halbzeuges aus Fig. 9 nach dem Umlegen der Haltemittel,

Fig. 11:

eine Schnittansicht einer dritten erfindungsgemäßen Ausführungsform der Verschlussvorrichtung, die sich aus dem Halbzeug aus Fig. 10 ergibt,

Fig. 12:

eine Schnittansicht der dritten erfindungsgemäßen Ausführungsform nach Montage eines Basiselements mit Schneid- und Mitnehmervorrichtung und

Fig. 13:

eine perspektivische Ansicht der dritten erfindungsgemäßen Verschlussvorrichtung in einer halb geöffneten Position.

Further features, advantages and uses of the present invention are evident from the figures discussed below. These show:

Figure 1:

a front view of a first embodiment of a semi-finished product according to the invention,

Figure 2:

a side view of the first embodiment of a semi-finished product according to the invention,

Figure 3:

a sectional view of the first embodiment of a semi-finished product according to the invention,

Figure 4:

a perspective view of a first embodiment of the closure device according to the invention in a half-open position.

Figure 5:

a front view of a second embodiment of a semi-finished product according to the invention,

Figure 6:

a side view of the second embodiment of a semi-finished product according to the invention,

Figure 7:

a sectional view of the second embodiment of a semi-finished product according to the invention,

Figure 8:

a perspective view of a second embodiment of a closure device according to the invention in a half-open position,

Figure 9:

a first sectional view of a third embodiment of a semi-finished product according to the invention (immediately after injection molding),

Figure 10:

a second sectional view of the embodiment of the semi-finished product 9 after turning over the holding means,

Figure 11:

a sectional view of a third embodiment of the closure device according to the invention, which consists of the semi-finished product 10 results

Figure 12:

a sectional view of the third embodiment according to the invention after assembly of a base element with a cutting and driver device and

Figure 13:

a perspective view of the third closure device according to the invention in a half-open position.

Figures 1 and 2 show a semi-finished product 100 according to the invention, which also includes a base element 14 providing a pouring channel 15 and a cutting device 18 arranged in the channel 15 . The intermediate product shown does not yet represent a finished, i.e. functional closure device 1, since the closure cap 2 is connected to the anchor ring 5 via the non-tearable web 101, so that an axial relative movement of the closure cap 2 and anchor ring 5 - with the purpose of opening the pouring opening 17 to release the channel 15 - is not possible without a great deal of effort or without the use of tools for a consumer.

In 2 the connecting element 7 designed as a hinge can be seen. However, in the state shown here, the non-tearable web 101 prevents a pivoting movement from being able to be carried out. As soon as the non-tearable web 101 is cut, it is possible to pivot the closure cap 2, at least for the relative angular position of the closure cap 2 in relation to the base element 14, in which the guide means 9 of the cap jacket 4 and the guide means 10 of the base element 14 are embodied Closure base 8 allow such pivotal movement. The tearable webs 11 which connect the guarantee ring 6 arranged axially below the anchor ring 5 to the anchor ring 5 are also clearly visible in the representation shown here.

3 discloses a cross-sectional view of the preform 100 with respect to a cutting plane that intersects both the hinge and the non-rupturable web 101. FIG. The anchor ring 5 is fixed in relation to the base element 14 by retaining elements 21 which are directed radially inwards and axially towards the closure cap 2 and are designed as tabs, in that the retaining elements 21 engage with a circumferential angle, i.e. one extending over a circumferential angle of 360 degrees and perpendicular to the closure axis 50 running, retaining ring 22 of the base member 14 are. The cutting device is shown here in its starting position, in which the cutting elements 19 are still completely within the channel 15 defined by the base element 14, through which The driver element 20' arranged in the closure cap 2 initiates a movement of the cutting elements 19 in the direction of the inlet opening 16 of the channel 15 when the closure cap 2 rotates - as soon as this is also possible after the non-tearable web 101 has been cut.

This in 3 Semi-finished product 100 shown also has a guide means 9 on the cap jacket 4 of the closure cap 2 and a corresponding guide means 10 on the base element 14, which are designed as bayonet elements. The bayonet element of the closure cap 2 is a projection that protrudes radially inwards on the cap jacket 4 and the bayonet element of the base element 14 is a ring element that protrudes radially outwards from the base surface of the outer surface of the channel 15, which does not extend completely over the circumferential angle of 360, but at a certain angular position not shown here has an interruption, so that in this angular position the radially inwardly projecting and designed as a guide means 9 projection of the cap jacket 4 and the radially outwardly projecting ring element are disengaged. This specific angular position can be reached by rotating the closure cap 2 . However, as long as the non-tearable web 101 is intact, pivoting of the closure cap 2 and an associated exposure of the inlet opening 16 are prevented even in this angular position. As soon as the non-tearable web 101 has been cut, pivoting of the closure cap 2 is only possible with this angular position of the closure cap 2 and base element 14 .

In the embodiment shown here, both the guide means 9 of the cap jacket (protrusion) and the guide means 10 of the base element 14 (ring element) extend in the circumferential direction in a plane perpendicular to the closure axis 50, so that with a rotation of the closure cap 2 and the anchor ring connected to it 5 at least as long as there is no axial relative movement between the closure cap 2 and the base element 14 as long as the two guide means 9 and 10 are in engagement with one another.

4 shows a closure device 1 according to the invention, which is obtained by cutting up the non-tearable web 101 (101'). A state of the closure device 1 is shown here as it results after the closure device 1 has been opened for the first time by a consumer. With an initial opening rotary movement, radially inner stop elements of the guarantee ring 6, which are not visible here, engage with corresponding stop elements of the base element 14, so that a co-rotational movement of the guarantee ring 6 with anchor ring 5 and closure cap 2 is blocked. The resulting gravitational forces tear (break) the tearable webs 11 between anchor ring 5 and guarantee ring 6.

In 4 the torn, tearable webs 11' are clearly visible. After this tearing of the tearable webs 11 , the guarantee ring 6 is detached from the anchor ring 5 - as shown here - with the guarantee ring 6 remaining on the base element 14 . The consumer can thus clearly see that an opening rotary movement has taken place for the first time. After the guarantee ring 6 has been detached, the closure device 1 can be put into the state shown here, in which the closure cap 2 is swiveled slightly upwards, without any further major expenditure of force. To do this, the closure cap 2 must be rotated to the angular position in which the guide means 9 of the cap skirt 4 of the closure cap 2 and the guide means 10 of the base element 14 disengage. In the embodiment shown here, this angular position is selected in such a way that in this angular position the cutting element 19 was moved by the driver device 20 (here exclusively consisting of a driver element 20`) at most in the direction of the inlet opening or partly also through the inlet opening 16. As soon as this angular position is reached, the consumer can pivot the closure cap 2 via the hinge and thereby release the pouring opening 17 - and all this without having to break a series of tearable webs again.

The in the Figures 1, 2 and 3 shown first embodiment of the semi-finished product 100 according to the invention differs from that in 4 shown first embodiment of the closure device 1 according to the invention exclusively in that in the closure device 1 according to the invention the non-tearable web 101 is cut, while in the embodiments according to FIG Figures 1, 2 and 3 is still intact.

The in the Figures 5, 6 and 7 shown second embodiment of the semi-finished product 100 according to the invention differs from that in FIGS Figures 1, 2 and 3 The first embodiment shown of the semi-finished product 100 according to the invention exclusively consists in the fact that two additional projections 12 extending axially in the direction of the anti-tamper ring 6 are provided on the lower edge of the cap jacket 4, which are each arranged in a correspondingly designed recess 13 of the anchor ring 5. The features and advantages described above in the Figures 1, 2 and 3 The first embodiment shown are therefore also valid for the second embodiment of the semi-finished product 100 according to the invention. The same reference numbers are used for the same or similar elements. Only the differences are described below.

The two projections 12 arranged on the cap jacket 4 have a triangular basic shape, with the projections 12 being formed as mirror images of one another with respect to a plane containing the hinge and the classified matter in the middle. The shape of the recesses 13 of the anchor ring 5 is also triangular. in the in figure 5 In the frontal view shown, the projections 12 resemble the canine teeth of a vampire or the tusks of a young walrus. In combination, the projections 12 and the recesses 13 allow a transmission Torque from the closure cap 2 to the anchor ring 5 or vice versa from the anchor ring 5 to the closure cap 2. This is particularly advantageous for closure devices 1 with larger diameters, since here the transmission of the torque via the hinge is often insufficient to ensure a sufficiently good Co -To ensure the rotation of the anchor ring 5 and the closure cap 2 during the opening rotation or closing rotation.

In the 8 The second embodiment shown of the closure device 1 according to the invention results from cutting the non-tearable web 101 of the second embodiment of the semi-finished product 100 according to the invention. Therefore, this embodiment of the closure device 1 according to the invention differs from that in 4 shown embodiment also only in relation to the projection-recess combinations described. All in relation to the first, in 4 The statements made in the embodiment shown therefore also apply to the 8 shown, second embodiment of the closure device according to the invention 1.

In the Figures 9 to 13 shows the different stages of a semi-finished product 100 or a closure device 1 during a manufacturing method according to the invention and the subsequent intended use.

9 12 shows, as a starting point, a third embodiment of a semi-finished product 100 according to the invention, the semi-finished product 100 being shown in a state in which it is located immediately after injection molding. In the embodiment shown here, two diametrically opposed, non-tearable webs 101 are provided, each of which is designed as an axially extending bracket and connect the radially outer side of the cap jacket 4 to the radially outer side of the anchor ring 5 . In this depiction, which illustrates the immediate state after the injection molding, the holding means 21 embodied as tabs are also still in a position aligned radially with respect to the anti-tamper ring 6 .

The in the Figures 9 to 13 The third embodiment shown of a semi-finished product 100 according to the invention or a closure device 1 according to the invention differs from the first embodiment of a semi-finished product 100 according to the invention or a closure device 1 according to the invention shown in FIGS or similar elements, the same reference numbers are therefore used.

In a step of the manufacturing process that follows injection molding, the result of which 10 is shown, designed as tabs holding means of the anchor ring 5 are folded so that they are aligned in the direction of the cap 2 and thus in the Are able to engage with a retaining ring 22 of a base member 14, whereby the anchor ring 5 is fixed relative to the base member 14 in the axial direction.

In a further step, the non-tearable webs 101 designed as brackets are cut off. The result of this cutting is in 11 shown. The semi-finished product 100 has now become a functional closure device 1 . It is now easier for the consumer to use the closure device 1 since tearable webs 11 are only located between the anchor ring 5 and the guarantee ring 6, where they are absolutely necessary.

The in the Figures 1 to 8 and 12 and 13 The embodiments of semi-finished products 100 and closure devices 1 shown are all designed for aseptic beverage cartons, in which the closure device 1 cuts the pouring opening when it is opened for the first time. They therefore all contain a base element 14, a driver device and a cutting device 18.

In principle, a semi-finished product 100 according to the invention (as shown in Figures 9 and 10 shown, only without driver element 20`) or a closure device 1 according to the invention (as shown in FIG. 11, only without driver element 20') but also for beverage cartons with closure devices applied from the inside, which are primarily used for fresh products.

In 12 is now shown the result of an assembly step in which the closure device 1 from 11 is extended by further components, namely a base element 14 and a cutting device 18, so that an aseptic closure device 1 is formed as a result. This can now be attached to cardboard packaging, for example, so that, as in 13 shown, the guarantee ring 6 is released by an opening rotary movement of the closure cap 2 together with the anchor ring 5 by breaking the tearable webs 11 and the cutting element 19 penetrates through the inlet opening and thus creates an opening in the cardboard packaging material or a sealing surface provided for this purpose, through which the bulk material subsequently escapes of the cardboard packaging can be poured out via the channel 15.

In the Figures 9 to 11 radially inner stop elements 23 of the guarantee ring 6 can also be seen. With an opening rotary movement of the in 11 The closure device 1 shown engages with the corresponding stop elements (not shown here) of the base element 14 and causes the tearable webs 11 to break due to the resulting shearing forces.

In 12 a sealing ring 24 which is arranged on the cap cover 3 can also be seen. This sealing ring 24 comes in an assembled state with the base element 14 in engagement with the inner surface of the channel 15 of the base element 14 and thereby seals the pouring opening 17 in the closed state of the closure device 1.

While the invention has been shown and described in detail in the drawings and the foregoing description, this illustration and description is by way of example only and is not intended to limit the scope as defined by the claims. The invention is not limited to the disclosed embodiments.

Modifications to the disclosed embodiments will become apparent to those skilled in the art from the drawings, the specification, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plural. The mere fact that certain features are claimed in different claims does not preclude their combination. Reference signs in the claims are not intended to limit the scope.

Reference List

1

locking device

2

sealing cap

3

cap lid

4

cap coat

5

anchor ring

6

guarantee ring

7

fastener

8th

shutter base

9

Guide means of the cap skirt

10

Guide means of the breech base

11

Tearable bridge (intact)

11'

Tearable web (torn)

12

Lead for torque transmission

13

Recess for torque transmission

14

base element

15

channel

16

entrance opening

17

pouring opening

18

cutting device

19

cutting element

20

driver device

20'

driver element

21

holding element

22

retaining ring

23

Stop element on the guarantee ring

24

sealing ring

50

locking axis

100

Workpiece

101

Non-Tearable Bridge (intact)

101'

Non-Tearable Bridge (Cut)

Claims (22)

Closure device (1) for closing a container, comprising a closure cap (2) with a cap cover (3) extending radially to a closure axis (50) and a cap skirt (4) adjoining the cap cover on the peripheral side and extending axially, an anchor ring (5), a guarantee ring (6) and a connecting element (7), wherein the closure device (1) is designed and can be connected to a closure base (8) in such a way that the closure cap (2) optionally closes an opening in the closure base (8) by a closing movement or opens it by an opening movement, and that the anchor ring (5) is both in remains in engagement with the closure base (8) both in an open position of the closure cap (2) and in a closed position of the closure cap (2), wherein the connecting element (7) connects the closure cap (2) to the anchor ring (5), wherein the connecting element (7) is designed in such a way that the closure cap (2) remains connected to the anchor ring (5) via the connecting element (7) even after an opening movement of the closure cap (2) has been carried out for the first time, a guide means (9) being provided on the cap skirt (4) of the closure cap (2), which are arranged and designed in such a way that they can be brought into engagement with a corresponding guide means (10) on the closure base (8) and that the opening movement and the closing movement of the closure cap (2) comprises a rotary movement of the closure cap (2) about an axis of rotation (51) aligned along the closure axis (50), wherein the anchor ring (5) is connected to the guarantee ring (6) via at least one tearable web (11) before the first opening movement of the closure cap (2), the anchor ring (5), the guarantee ring (6) and the at least one tearable web (11) are designed in such a way that the at least one tearable web (11) can be torn by the opening movement of the closure cap (2) for the first time, so that the guarantee ring (6) can be detached from the anchor ring (5), the closure cap (2) being connected to the anchor ring (5) exclusively via the connecting element (7) both before the first opening movement and after the first opening movement of the closure cap (2). Having a semi-finished product (100) for a closure device provided for closing a container a closure cap (2) with a cap cover (3) extending radially to a closure axis (50) and a cap skirt (4) adjoining the cap cover (3) on the circumference and extending axially, an anchor ring (5), a guarantee ring (6) and a connecting element (7), wherein the connecting element (7) connects the closure cap (2) to the anchor ring (5), wherein the closure cap (2) is connected to the anchor ring (5) via at least one non-tearable web (101) in addition to the connecting element (7), wherein the connecting element (7) and the non-tearable web (101) are designed and arranged in such a way that the closure cap (2) is fixed in a substantially unchangeable position relative to the anchor ring (5), wherein the connecting element (7) is designed in such a way that when a user uses the closure device (1) resulting from cutting or punching the non-tearable web (101) in connection with a closure base (8), the closure cap (2) can also be removed remains connected to the anchor ring (5) via the connecting element (7) during an opening movement of the closure cap (2), a guide means (9) being provided on the cap jacket (4) of the closure cap (2), which is arranged and designed in such a way that it can be brought into engagement with a corresponding guide means (10) on a closure base (8), wherein the anchor ring (5) is connected to the guarantee ring via at least one tearable web (11), the anchor ring (5), the guarantee ring (6) and the at least one tearable web (11) being designed in such a way that the at least one tearable The web (11) can be torn apart by opening the closure cap (2) for the first time, so that the guarantee ring (6) can be detached from the anchor ring (5). Closure device (1) according to claim 1 or semi-finished product (100) according to claim 2, wherein the anchor ring (5) is a complete ring extending through an angle of 360 degrees, the anti-tamper ring (6) being an additional, full, 360 degree ring. Closure device (1) according to one of claims 1 or 3 or semi-finished product (100) according to one of claims 2 or 3,
the connecting element (7) being a hinge element, the hinge element being designed and arranged in such a way that the closure cap (2) can be pivoted relative to the anchor ring (5) about a pivot axis perpendicular to the closure axis. Closure device (1) according to one of claims 1 or 3 or semi-finished product (100) according to one of claims 2 or 3,
wherein the connecting element (7) comprises an elongate connecting strap, preferably a single elongate connecting strap. Closure device (1) according to one of claims 1 or 3 to 5 or semi-finished product (100) according to one of claims 2 to 5,
wherein the guide means (9) of the closure cap (2) is an internal thread. Closure device (1) according to one of claims 1 or 3 to 5 or semi-finished product (100) according to one of claims 2 to 5, wherein the guiding means (9) of the closure cap (2) is a bayonet element, wherein the bayonet element comprises at least one projection which projects radially inwards and extends in the circumferential direction in the closed state of the closure cap (2) in a defined plane perpendicular to the closure axis (50) or comprises at least one recess which is formed radially outwards and extends in the circumferential direction in the closed state of the closure cap (2) in a fixed plane perpendicular to the closure axis. Closure device (1) according to one of claims 1 or 3 to 7 or semi-finished product (100) according to one of claims 2 to 7,
wherein the cap jacket (2) has at least one projection (12) protruding in the axial direction, which is arranged in a correspondingly designed recess (13) of the anchor ring (5) or the anchor ring (5) has at least one projection protruding in the axial direction, which is arranged in a corresponding recess of the cap jacket (2). Closure device (1) according to one of claims 1 or 3 to 8 or semi-finished product (100) according to one of claims 2 to 8, wherein the anchor ring has at least one tab that can be aligned radially inwards for axially supporting the anchor ring on a radial projection of a closure base connected to the semi-finished product or the closure device, and the tab being pivoted to the anchor ring. Closure device (1) according to one of claims 1 or 3 to 9 or semi-finished product (100) according to one of claims 2 to 9, wherein the closure device (1) or the semi-finished product (100) comprises a closure base (8) designed as a base element (14), wherein the base element (14) has a channel (15) extending along the closure axis (50) and having an inlet opening (16) and a pouring opening (17). Closure device (1) according to claim 10 or semi-finished product (100) according to claim 10, wherein the closure device (1) comprises a cutting device (18) with a cutting element (19) arranged at least in sections within the channel (15). Closure device (1) according to claim 11,
wherein the closure cap (2) comprises a driver device (20), wherein the driver device (20) and the cutting device (18) are designed and arranged in such a way that when the closure cap (2) is opened for the first time, a movement of the cutting element (19) from one starting position of the cutting element (19), starting in a direction pointing from the pouring opening (17) to the inlet opening (16), so that the cutting element (19) can be moved at least in sections through the inlet opening (16). Closure device (1) according to claim 12,
the closure device (1) being designed in such a way that when the closure cap (2) is opened for the first time, the tearable webs (11) tear first and then the cutting element (19) moves at least in sections through the inlet opening (16). Semi-finished product (100) according to one of claims 2 to 11,
there being a single non-rupturable web (101). Semi-finished product (100) according to one of claims 2 to 11 or 14,
wherein the at least one non-rupturable web (101) extends over a circumferential angle of at least 2 degrees, preferably at least 5 degrees. Semi-finished product (100) according to one of Claims 2 to 11 or 14 or 15,
wherein the at least one non-tearable web (101) has a reduced wall thickness compared to the cap jacket (2) adjoining the non-tearable (101) web in the axial direction. Semi-finished product (100) according to one of claims 2 to 11 or 14 to 16,
wherein the at least one non-rupturable web (101) is a circumferentially extending film of material. Semi-finished product (100) according to one of claims 2 to 11 or 14 to 17,
wherein the at least one non-tearable web (101) is made of the same material as the closure cap (2) and the anchor ring (5). Semi-finished product (100) according to one of claims 2 to 11 or 14 to 18,
obtainable by an injection molding process. Method for producing a closure device with the steps of producing a semi-finished product (100) according to one of Claims 2 to 11 or 14 to 19 by an injection molding process,
Cutting or punching the at least one non-tearable web (101) so that the closure cap (2) is connected to the anchor ring (5) exclusively via the connecting element (7). Closure device obtainable by a method according to claim 20. Closure device (1) for closing a container, comprising a closure cap (2) with a cap cover (3) extending radially to a closure axis (50) and a cap skirt (4) adjoining the cap cover on the peripheral side and extending axially, an anchor ring (5), a guarantee ring (6) and a connecting element (7), wherein the closure device (1) is designed and can be connected to a closure base (8) in such a way that the closure cap (2) optionally closes an opening in the closure base (8) by a closing movement or opens it by an opening movement, and that the anchor ring (5) is both in remains in engagement with the closure base (8) both in an open position of the closure cap (2) and in a closed position of the closure cap (2), wherein the connecting element (7) connects the closure cap (2) to the anchor ring (5), wherein the connecting element (7) is designed in such a way that the closure cap (2) remains connected to the anchor ring (5) via the connecting element (7) even after an opening movement of the closure cap (2) has been carried out for the first time, a guide means (9) being provided on the cap skirt (4) of the closure cap (2), which are arranged and designed in such a way that they can be brought into engagement with a corresponding guide means (10) on the closure base (8) and that the opening movement and the closing movement of the closure cap (2) comprises a rotary movement of the closure cap (2) about an axis of rotation (51) aligned along the closure axis (50), wherein the anchor ring (5) is connected to the guarantee ring (6) via at least one tearable web (11) before the first opening movement of the closure cap (2), the anchor ring (5), the guarantee ring (6) and the at least one tearable web (11) are designed in such a way that the at least one tearable web (11) can be torn by the opening movement of the closure cap (2) for the first time, so that the guarantee ring (6) can be detached from the anchor ring (5), wherein the anchor ring has at least one radially inwardly alignable tab for axially supporting the anchor ring on a radial projection of a closure base connected to the closure device, the tab being pivoted to the anchor ring.

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