EP3107817B1 - Closure cover with tamperproof securing means, and packaging unit provided therewith - Google Patents

Description

The invention relates to a closure lid with tamper evidence for an open end of a packaging container and a packaging unit with such a closure lid, as described in the claims 1 and 9.

There are already widely known closure lid and packaging containers therewith, in which there is provided between these a tamper-evident device in order to allow the consumer or end user an apparent control of the originality of the package contents. In the case of a multiplicity of packaging units, a receiving groove designed circumferentially around the circumference for receiving the outer edge of the closure lid is provided in the region of the open end of the packaging container. The outer groove wall prevents direct access for gripping the closure lid in order to remove it. Only by separating a portion of the outer groove wall access to the edge of the closure lid can be done and thus the removal process can be performed.

The DE 200 17 211 U1 describes a generic plastic container with a closure lid, which has a tamper evidence. The packaging container has a flange radially projecting over a container wall. The closure lid has an end wall and an apron arranged at the edge wall on the end wall, which defines a longitudinal axis. The apron forms on its side facing away from the end wall an open lid end. In an outer peripheral region of the end wall, a support surface is formed on its side facing the open lid end, which defines a support plane, and adjoins the skirt at the edge of the support surface. The apron is formed by a plurality of apron parts spaced apart in the circumferential direction, wherein the skirt parts are each delimited circumferentially by apron part ends. The skirt parts are further arcuately curved in the circumferential direction, in particular by circular arc sections formed. Between the respective circumferentially facing each other Schürzenenteilenden the skirt parts a space is formed, wherein a tamper evident arranged in the free space and connected to the facing Schürzenenteilenden. At the tamper-evident flap, it faces the support surface

Side at least one locking means provided, which is arranged in the axial direction of the supporting surface defined by the support plane distant in the direction of the open lid end. On the latching means one of the support plane facing locking surface is formed, wherein the latching surface is arranged in the radial direction in overlapping position with respect to the support surface. The axial distancing of the locking means of the support surface is used to receive a portion of the flange of the container and for engaging behind. The latching surface of the tamper-evident flap is formed by a first end face of the tamper-evident flap, wherein the first end face is arranged in the circumferential direction in a continuous manner away from the supporting surface.

From the EP 1 160 171 A2 is a trained as a lid container closure has become known, which has a tamper evidence. The tamper-evident is formed as almost over the entire outer circumference of the lid continuous tear-off. The tear-off ring has latching projections which engage behind the flange arranged on the container on its side facing the container bottom. For separating the tear-off ring, predetermined separation regions are provided both on the skirt and along the peripheral extent of the outer upper edge of the cover.

Another closure lid for a container to be worn describes the WO 2006/089432 A1 , The closure lid is formed from two ring parts which are to be connected to one another and are continuous over the circumference, wherein a lid segment is inserted between the ring parts and held in this position by the two ring parts. As a tamper-evident as a nearly over the entire outer circumference of the lid continuous tear-off is formed. The tear-off ring has internally arranged and circumferentially spaced latching projections, which engage behind the container disposed on the flange on its side facing the container bottom. In a peripheral portion of the tear-off is formed interrupted to allow access to a Aufrerering arranged Aufrisslasche.

The WO 2013/156369 A1 describes a combination packaging container comprising a cup-shaped inner container with a container casing, a bottom and with a flange arranged in the region of its open end. A section of the floor forms a footprint. The container casing of the inner container is of a cuff-shaped Surrounded outside. Supporting means are used for nesting of several identical combination packaging containers.
The DE 202 01 426 U1 describes a tamper-evident closure for containers which have a lid formed by a plastic molding, with a breakable at a predetermined breaking point latch member which locks the lid to the container. The latch member is connected at its two, the skirt facing end portions each have a predetermined breaking point with this. In addition, the latch member is connected via a further predetermined breaking point on its side facing the mirror of the lid side with the skirt. On the inner surface of the latch part, an inwardly projecting nose is arranged immediately adjacent to the further predetermined breaking point, which engages under an outwardly projecting edge flange of the container. The entire latch part has a continuously rectilinear longitudinal extent in the circumferential direction.
The present invention has for its object to provide a closure lid for a trained with a radially projecting flange packaging container having a tamper-evident device and in its manufacture and assembly is simple and inexpensive. In addition, but also designed with such a closure lid packaging unit to be created.

This object of the invention is achieved by the features of claim 1. The advantage resulting from the features of claim 1 lies in the fact that thereby takes place between the Schurzenteilenden with a corresponding design of the flange, a chord-shaped engaging behind the tamper-evident flap on the flange. Thus, depending on the circumferential length or chord length of the tamper-evident flap in the region of the latching surface, the extent of the hacking can be determined. Furthermore, it can also be dispensed with the arrangement of additional projections or approaches to the formation of locking means on the tamper-evident. As a result, the formation of the tool for molding the closure lid and possibly also the removal from the mold can be simplified and thus made more cost-effective. Furthermore, a certain warping of the tamper-evident flap over its circumferential extent between its attachment regions at the two skirt part ends can be achieved. Depending on the selected radius of curvature, the radial projection of the second end face of the tamper-evident flap over the container jacket or the outer envelope of the flange can thus be determined. In addition, as seen from the end wall to the open end of the lid at least partially seen in axial section training of the tamper evident can be achieved. As a result, not only the detection and gripping of the opening tab in the region of the open lid end can be facilitated, but also an automated placement and subsequent pressing of the closure lid onto the packaging container can be made possible. Thus, the radially outwardly projecting second end face of the tamper evident strap form the beginning of an insertion bevel so as to facilitate the placement movement and then a secure locking of the tamper evident within the radial cross section of the flange can be achieved.

By the axial distancing the locking surface of the support surface formed by the end wall, a defined receiving space is created, in which in the locked position of the closure lid, the flange of the packaging container is receivable. This makes it possible to produce inexpensively manufactured packaging units, in which the packaging container itself can be produced inexpensively in a large quantity. This makes it possible to arrange or form the tamper-evident flap or the tamper-evident tabs distributed over the circumference of the lid edge, the placement of this closure lid being effected by a simple placement movement in the axial direction on the packaging container. By the axial Aufschiebebewegung or Aufsetzbewegung the locking means are initially elastically deformed, that these from their overlapping position with respect to the support surface be relocated so far that they reach behind the original after securing the flange and an axial lifting movement is prevented secured.

It is also advantageous that can be dispensed with the provision of additional locking means and the front side of the tamper evident even forms the locking surface for engaging behind the flange. Due to the continuous axial distancing of the locking surface formed by the end face so a receiving slot is formed, in which after placement of the closure lid, a portion of the flange can be accommodated. As a result, the outer circumference of the end wall is maintained as a completely peripheral bearing area, the tamper evident plates themselves being arranged only in the peripheral region of the skirt between their skirt parts.

Through the development according to claim 2 it is achieved that a predefined separation region between the tamper-evident tabs and the skirting member ends facing this can be created.

As a result of the embodiment according to claim 3, a central separation of the individual tamper-evident tabs in the axial direction can be achieved, as a result of which a detachment of the closure lid from the packaging container is also made possible only after the separation of the predetermined separation region. In addition, such an additional waste component is avoided because the separated originality tab remains connected to each of these facing Schürzenenteilenden.

Also advantageous is an embodiment according to claim 4, since thus a predefined longitudinal course of the predetermined separation region can be created.

According to one embodiment, as described in claim 5, a better pre-centering of the closure cap in the region of the flange is thus achieved for the placement movement. In addition, however, in the area of the apron or its apron parts due to the axial distancing in the area of the apron parts snapping the closure lid can be achieved on the flange of the packaging container. Due to the elastic deformability of the material of the closure lid so the apron during placement on the Flange are widened in the radial direction, so that in the closed position by the extension also a rear engagement of the flange is achieved.

In this case, an embodiment according to claim 6 proves advantageous because thereby the closure cap is additionally stiffened and beyond a certain centering or sealing effect between the closure lid and the packaging container can be achieved depending on the extent of the radial distancing.

According to an advantageous development according to claim 7, a closure lid matched to the respective packaging container as well as the contents filled therein can be created. In addition, but also the design options and the visual appearance can be easily adapted to an even greater extent to the most diverse conditions of use.

However, an advantage is also an embodiment according to claim 8, as a certain mass fraction of the closure lid can be formed from an easy to recycle material.

The object of the invention is, however, independently solved by the features of claim 9. The resulting from the combination of features of the characterizing part of this claim advantages are that a packaging unit can be created in which standardized on simple and inexpensive to produce packaging container a closure lid can be placed and locked so coupled and still a flawless, visual display of the untouched content can be reached through the originality tab. For an assembly is created, which is inexpensive to produce in large quantities. As a result of the flange formed on the packaging container, a simple coupling element is created with which the closure lid is latched in a secured manner via at least two tamper-evident straps.

In the embodiment according to claim 10 such a simple and secure locking of the closure cap is achieved on the flange of the packaging container. By resting the support surface of the end wall on the flange and the additional engagement behind the same of the at least one locking means is thus a secure axial retention of the closure lid on the packaging container, in particular its flange, achieved. The radial alignment of the closure lid takes place between the skirt or its apron parts and the outer envelope of the flange.

It is also possible an embodiment according to claim 11, since thus also an additional completion of the receiving space or filling space and the contents arranged therein in a gas- and / or liquid-tight manner can be achieved. Thus, the closure lid can only serve as an indication of originality and only by the closure element at least a liquid-tight closure can be achieved.

Finally, however, a training, as described in claim 12, possible, as this, on the one hand, the stability of the packaging container and on the other hand, the insulating behavior can be further improved. In addition, but also a certain proportion of the material for the formation of the inner container can be saved as the cuff-shaped outer part takes over a significant share of the support function and the transfer of stacking forces or compressive forces between the flange and the bottom.

It is also advantageous if a plurality of latching means are arranged one behind the other in the circumferential direction, which protrude in the radial direction from the tamper-evident flap in the direction of the longitudinal axis, since in this way uniformly distributed latching stops are formed over the circumferential extension of the individual tamper-evident tabs which are formed on the underside and thus the bottom of the facing side of the flange can be supported thereon. Thus, the tamper evident plates can be adjusted in their circumferential direction almost identical to the circumferential course of the skirt or its apron parts, in which case, however, the locking means or locking elements are to be formed as additional, projecting beyond the inner circumference components.

It is also advantageous if the tamper-evident flap is arranged on the edge along the end wall and connected thereto at least in sections. Thus, even in the connection region of the tamper-evident strap to the edge of the end wall, an additional connection can be created in order to increase the circumferential stability of the tamper-evident straps themselves.

Fig. 1

einen Verpackungsbehälter mit darauf angebrachtem Verschlussdeckel, in schaubildlicher Darstellung, teilweise geschnitten;

Fig. 2

den Verschlussdeckel nach Fig. 1, in schaubildlicher Darstellung;

Fig. 3

den Verschlussdeckel nach Fig. 2, in Draufsicht, teilweise geschnitten;

Fig. 4

ein Detail des Verschlussdeckels nach den Fig. 2 und 3, im Axialschnitt gemäß den Linien IV-IV in Fig. 3 sowie vergrößerter Darstellung;

Fig. 5

ein weiteres Detail des Verschlussdeckels nach den Fig. 2 und 3, im Axialschnitt gemäß den Linien V-V in Fig. 3 sowie vergrößerter Darstellung;

Fig. 6

eine weitere mögliche, jedoch nicht vom Schutzumfang umfasste Ausbildung eines Verschlussdeckels, in schaubildlicher Darstellung.

Einführend sei festgehalten, dass in den unterschiedlich beschriebenen Ausführungsformen gleiche Teile mit gleichen Bezugszeichen bzw. gleichen Bauteilbezeichnungen versehen werden, wobei die in der gesamten Beschreibung enthaltenen Offenbarungen sinngemäß auf gleiche Teile mit gleichen Bezugszeichen bzw. gleichen Bauteilbezeichnungen übertragen werden können. Auch sind die in der Beschreibung gewählten Lageangaben, wie z.B. oben, unten, seitlich usw. auf die unmittelbar beschriebene sowie dargestellte Figur bezogen und sind diese Lageangaben bei einer Lageänderung sinngemäß auf die neue Lage zu übertragen.
In der Fig. 1 ist schematisch vereinfacht eine Verpackungseinheit 1 gezeigt, welcher unter anderem einen Verpackungsbehälter 2 umfasst, der seinerseits ein offenes Ende 4 sowie ein durch bzw. mit einem Boden 5 verschlossenes Ende 6 aufweist. Zwischen dem offenen Ende 4 und dem Boden 5 erstreckt sich eine Behälterwand 7. Im Bereich des offenen Endes 4 ist weiters ein die Behälterwand 7 radial überragender Flansch 8 vorgesehen.
Der Verschlussdeckel 3 dient zum Verschließen des offenen Endes 4 des Verpackungsbehälters 2 und ist ein weiterer Bestandteil der Verpackungseinheit 1. Dabei sei erwähnt, dass jene Bauteile, nämlich der Verpackungsbehälter 2 und der Verschlussdeckel 3, welche die Verpackungseinheit 1 bilden, auch als Verpackungsbaugruppe bzw. auch nur generell als Verpackung bezeichnet werden können.
Der Verschlussdeckel 3 umfasst eine Stirnwand 9, an welcher randseitig eine Schürze 10 daran angeordnet bzw. ausgebildet ist. Weiters definiert die Behälterwand 7 zwischen dem offenen Ende 4 und dem verschlossenen Ende 6 bzw. auch die Schürze 10 des Verschlussdeckels 3 eine Längsachse 11, welche je nach gewählter Raumform des Verpackungsbehälters 2 bzw. des Verschlussdeckels 3 auch als Mittellängsachse bezeichnet werden kann. Die Längsachse 11 erstreckt sich in Axialrichtung und ist eine imaginäre Achse.For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
In each case, in a highly simplified, schematic representation:

Fig. 1

a packaging container with cap attached thereto, in perspective view, partially cut;

Fig. 2

the cap after Fig. 1 in a schematic representation;

Fig. 3

the cap after Fig. 2 partially sectioned in plan view;

Fig. 4

a detail of the cap after the FIGS. 2 and 3 , in axial section according to the lines IV-IV in Fig. 3 and enlarged view;

Fig. 5

another detail of the cap after the FIGS. 2 and 3 , in axial section according to the lines VV in Fig. 3 and enlarged view;

Fig. 6

another possible, but not included in the scope of protection training a cap, in perspective view.

By way of introduction, it should be noted that in the differently described embodiments, identical parts are provided with the same reference numerals or the same component designations, wherein the disclosures contained in the entire description can be applied mutatis mutandis to the same parts with the same reference numerals or identical component names. Also, the position information selected in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
In the Fig. 1 schematically a packaging unit 1 is shown which, inter alia, comprises a packaging container 2, which in turn has an open end 4 and an end 6 closed by or with a bottom 5. Between the open end 4 and the bottom 5 extends a container wall 7. In the region of the open end 4, a container wall 7 radially projecting flange 8 is further provided.
The closure lid 3 is used to close the open end 4 of the packaging container 2 and is another part of the packaging unit 1. It should be noted that those components, namely the packaging container 2 and the closure lid 3, which form the packaging unit 1, as a packaging assembly or can also be generally referred to as packaging.
The closure lid 3 comprises an end wall 9, on which an apron 10 is arranged or formed on the edge side. Furthermore, the container wall 7 defines, between the open end 4 and the closed end 6 or also the skirt 10 of the closure lid 3, a longitudinal axis 11 which, depending on the selected spatial form of the packaging container 2 or the closure lid 3, can also be referred to as the central longitudinal axis. The longitudinal axis 11 extends in the axial direction and is an imaginary axis.

Furthermore, the closure lid 3 in the region of the skirt 10 comprises at least one tamper-evident flap 12. The number and circumferential arrangement of the tamper-evident flap 12 and the tamper-evident tabs 12 can be freely selected depending on the size ratios of the closure cap 3. Thus, at least two tamper-evident tabs 12 are to be provided, with preferably several, in particular three, such tamper-evident tabs 12 being distributed over the circumference of the closure lid 3 in this exemplary embodiment.

The apron 10 further forms on its side facing away from the end wall 9 side of an open lid end 13, which is designed to receive the packaging container 2 with its flange 8.

Under packaging container 2 cup or cup-shaped containers are understood, which are preferably made of a plastic material. In this case, the cross section or the spatial form can be chosen very different. For example, the packaging container 2 may be made of any plastic material or an alternative material by a deep-drawing process, an injection molding process or a foaming process. In most cases cups are used with a circular cross-section, which also deviating cross-sectional shapes, such as polygonal cup shapes, are conceivable. However, planar container walls 7 may also be connected to one another via rounded transition regions. In such cup cross-sections, the position of the tamper-evident device or the tamper-indicating device, in particular the tamper-evident strap 12 with its latching means 28, is then adapted to the respective spatial form. Thus, for example, the tamper-evident flap 12 could be arranged in a corner region or a transitional region between container walls 7 disposed immediately adjacent to the one according to FIG Fig. 1 to 5 described behind reaching the flange 8 on its bottom 5 facing the bottom to reach. As a further component of the tamper-evident device, however, the flange 8 of the packaging container 2 also counts.

Regardless, it would also be possible to form the packaging container 2 to form the packaging unit 1 by a so-called combination packaging container. In this case, the packaging container 2 comprises an inner container 14 and a cuff-shaped outer part 15. The inner container 14 is preferably produced in a deep-drawing process, but also the production in an injection molding or other molding process of a plastic material is possible. The inner container 14 in turn has a container bottom 16 and a container shell 17. Also, this inner container 14 may, as has already been described above for the packaging container 2, the open end 4 and the closed end 6 have. In the area of the open end 4, in turn, the flange 8 is arranged or formed. The cuff-shaped outer part 15 is arranged in the region of the container shell 17 and covers it at least in some areas.

Furthermore, it is possible that the open end 4 of the packaging container 2 or of the inner container 14 can be closed with an additional closure element 18. The closure member 18 may be formed of a variety of materials and may also be referred to as a sealing plate or the like. The closure element 18 can serve to complete the filling space or receiving space of the packaging container 2 after it has been filled with the contents against the external environment. This closing of the filling space with the closure element 18 can take place, for example, by a cohesive connection of the closure element 18 or a coating applied thereto, with the flange 8. This can be done for example by a bonding process, a welding process, in particular a sealing process, or the like in a known manner.

In the Fig. 2 to 5 is a possible and possibly independent embodiment of the closure lid 3 is shown, again for like parts, the same reference numerals or component designations as in the preceding Fig. 1 be used. To avoid unnecessary repetition, the detailed description in the previous one Fig. 1 referred or referred.

The closure lid 3 shown here comprises the end wall 9 and the apron 10 arranged on the edge wall 9 on the edge side.

The apron 10 is formed by a plurality of - in the present case three pieces - in the circumferential direction spaced from each other arranged skirt parts 19 to 21. It should be noted that the number of skirt parts 19 to 21 is at least two pieces but can also be more than three pieces. In a further consequence, the design and arrangement of the tamper-evident flap 12 or the tamper-evident tabs 12 will be described only for a peripheral portion of the closure lid 3, whereby the further tamper-evident tabs 12 may be of similar construction to the tamper-evident flap 12 described in detail. The skirt parts 19 to 21 - in the present embodiment, the two skirt parts 19 and 20 - are each circumferentially bounded by skirt part ends 22, 23.

How better of the Fig. 5 can be seen, here the closure cap 3 is shown in its put on the packaging container 2, coupled position. It should be noted that the cross section or the formation of the end wall 9 can be freely selected depending on the design of the packaging container 2 and the contents. The flange 8 of the packaging container 2 protrudes in the radial direction over the container wall 7 of the packaging container 2 and is arranged to extend in a plane aligned perpendicular to the longitudinal axis 11. Seen in axial section, the flange 8 forms almost a rectangular cross-section. In this case, the preferably over the circumference continuous flange 8 forms a first coupling element, which is in the closed position with at least one formed on the closure lid 3 further coupling element in coupling engagement. In the present exemplary embodiment, the further coupling elements or the other coupling elements are formed by the tamper-evident straps 12 or their components, which are described in more detail below.

In the case of a circularly formed packaging container 2, the flange 8 forms on its side facing the closure lid 3 a bearing surface 24 in the form of an annular surface. In a different cross-sectional shape, the flange 8 has a corresponding shape of the support surface 24 from.

The end wall 9 forms at least in its outer peripheral region at its side facing the open lid end 13 a support surface 25, which in turn defines a support plane 26. This support 26 is also aligned in the vertical direction with respect to the longitudinal extent of the longitudinal axis 11. The apron 10 or its skirt parts 19 to 21 are arranged on the edge wall subsequently to the support surface 25 on the end wall 9.

How better from a synopsis of FIGS. 2 and 3 can be seen, between the each in the circumferential direction facing each other Schürzenenteilenden 22, 23 of the skirt parts 19, 20, a free space 27 is formed. This clearance 27 extends circumferentially continuously between each facing Schürzenenteilenden 22, 23 and starting from the support surface 25 over the full height or axial extent of the skirt 10 and the skirt parts 19 to 21 and is in the Fig. 3 entered as a straight line between the facing each other Schürzenteilenden 22, 23.

The above-described tamper-evident flap 12 is arranged in the free space 27 and connected to the respectively facing skirt part ends 22, 23.

How better of the Fig. 4 can be seen, in which also the closure lid 3 an attached position is shown on the packaging container 2, at least one locking means 28 is provided on the tamper-evident flap 12 on its side facing the support surface 25. The latching means 28 is arranged in the axial direction of the defined by the support surface 25 support plane 26 in the direction of the open lid end 13. Furthermore, on the latching means 28 one of the support plane 26 facing locking surface 29 is formed.

The axial distancing of the locking surface 29 of the support surface 25 is at least chosen so large that the flange 8 can be used with its axial thickness between the latching means 28 formed on the locking surface 29 and the support surface 25 or received.

Furthermore, the locking surface 29 of the locking means 28 is seen in the radial direction, arranged in overlapping position with respect to the support surface 25. Thus, not only a portion of the flange 8 between the locking means 28 and the support surface 25 are received, but the locking surface 29 of the locking means 28 engages behind the flange 8 in the radial direction towards the longitudinal axis 11. Thus, in the closed position or coupling position of the flange 8 spatially between the locking means 28, namely the locking surface 29 and the support surface 25 is arranged.

By this engaging behind the locking means 28 can not be easily removed from the packaging container 2 with attached to the open end 4 closure lid 3, without the tamper-evident device destroyed or deformed so far that an indication of an opening is already present. Thus, the tamper-evident device, in particular the tamper-evident flap 12 with the latching means 28 arranged or formed thereon, serves as an indication that the filling space or the contents filled therein are still in a so-called originality state.

To remove the closure lid 3 from its original position locked to the flange 8, at least one of the tamper-evident tabs 12 must first be removed to such an extent that At least the latching means 28 and the latching surfaces 29 arranged thereon or formed are disengaged from the flange 8. This means that the locking surface 29 seen in the radial direction has been spent at least to its predominant area proportion outside the outer peripheral contour of the flange 8.

In this embodiment shown here, the latching surface 29 is formed by a first end face 30 of the tamper-evident flap 12. The first end face 30 of the tamper-evident tab 12 is facing the support surface 25. Furthermore, the first end face 30 and thus also the latching surface 29 are arranged in the circumferential direction continuously distanced from the support surface 25 in the axial direction. As a result, a continuous receiving slot 31 is formed in the present case between the latching surface 29 and the support surface 25. The latching surface 29 is aligned in the unopened original position of the tamper-evident flap 12 planar and parallel with respect to the support surface 25. The latching surface 29 on the front side 30 of the tamper-evident flap 12 corresponds to a wall thickness of the tamper-evident flap 12, but can be seen to be wider in extent depending on the arrangement later described obliquely with respect to the longitudinal axis 11. The latching surface is determined solely by the wall thickness of the tamper-evident flap 12, wherein in this embodiment no projections projecting beyond the wall thickness are provided for forming the latching means 28.

How better of the Fig. 3 can be seen, the first end face 30 of the tamper-evident flap 12 between the each circumferentially facing each other Schürzenenteilenden 22, 23 formed rectilinear. Since the skirt 10 and the apron parts 19 to 21 forming these are arcuately curved in the case of the closure lids 3 shown here, in particular by circular arc sections, a chord emerges from the preferred straight course of the first end face 30, which results in a gripping behind the flange 8 leads. The extent of the gripping engagement of the locking surface 29 increases from the two skirt part ends 22, 23 to half of the longitudinal extent of the first end face 30 and reaches the maximum there. In a non-straight course of the end face 30, such as by an arcuate longitudinal course, with a radius of curvature of the skirt 10 to larger radius of curvature, a rear engagement can also be achieved.

If the closure lid 3 is placed on the packaging container 2, the supporting surface 25 formed by the end wall 9 lies at least in regions on the flange 8. In the latched position of the tamper-evident tabs 12, the flange 8 is engaged behind by the at least one latching surface 29 of the latching means 28 in the radial direction on the longitudinal axis 11.

In order to achieve a simple placement of the closure lid 3 on the packaging container 2, in particular the flange 8, a second end face 32 of the tamper-evident flap 12 arranged in the region of the open lid end 13 is curved in an arcuate manner. The arcuate curvature is aligned with the side facing away from the longitudinal axis 11 side. Thus, the second end face 32 extends in the longitudinal direction between the facing Schürzenenteilenden 22, 23 curved. By this bulge of the tamper-evident flap 12 in the area of the open lid end 13, the detection of the tamper-evident flap 12 can be facilitated.

In order to achieve an unhindered placement of the closure lid 3 with already existing and integrally connected with the apron parts 19 to 21 tamper evident plates 12, the bulging of the second end face 32 seen at least in the central region of the tamper evident 12 in the circumferential direction form as far as that the radial outer boundary of the Flange 8 is surmounted by the second end face 32 of the tamper-evident flap 12 in the radial direction.

Seen in axial section - see Fig. 4 - An outer envelope of the flange 8 is indicated in dash-dotted lines. Due to the curved longitudinal course of the second end face 32 in the region of the open lid end 13, the tamper-evident flap 12 is seen in cross-section or axial section at least in the region of half the circumferential extent, starting from the first end face 30 with the latching surface 29 arranged there or formed on the latching surface 29 the longitudinal axis 11 averted side formed widening. In this way, an inclination of the tamper-evident flap 12 is achieved, at least in its middle area, with the inclination decreasing with respect to the longitudinal axis 11 towards the skirting-part ends 22, 23. Furthermore, the wall thickness of the tamper-evident flap 12 can also be designed to decrease starting from the first end face 30 towards the second end face 32. This creates a wider area in the area of the latching surface 29 than in the area of the second end side 32 distanced therefrom.

How better of the Fig. 2 can be seen, at least between one of the Schürzenenteilenden 22, 23 and the associated tamper-evident strap 12, a predetermined separation region 33 may be formed.

Regardless of or in addition to this, it would also be possible for at least one such desired separation region 33 to be formed or formed directly in the tamper-evident flap 12 between the skirting-part-ends 22, 23 facing one another. This one is in the Fig. 2 indicated in dotted lines in the central region of the tamper-evident 12.

Depending on the material used to form the closure lid 3, the predetermined separation region 33 may be formed, for example, by a weakening line in the material or by a plurality of perforations arranged one behind the other.

This makes it possible to solve the axial locking of the closure lid 3 in the region of its tamper-evident flap 12 with the flange 8 of the packaging container 2, so as to obtain access to the filling space and the filling material filled with it. Depending on the number and arrangement of the apron parts 19 to 21 or the tamper-evident plates 12 arranged therebetween, a plurality of predetermined separation regions 33 distributed over the circumference may also be provided.

How better off again Fig. 5 can be seen, is arranged on one of the longitudinal axis 11 facing inner surface 34 of the skirt 10 and the apron 10 forming skirt parts 19 to 21 at least in sections a projecting in the direction of the longitudinal axis 11 extension 35 or formed. In this case, the extension 35 is arranged in the axial direction of the support plane 26 and the support surface 25 in the direction of the open lid end 13 at a distance. Between the outer sheath of the flange 8 and the inner surface 34 of the skirt 10 and the apron parts 19 to 21, a slight gap is formed, so as to ensure a safe and collision-free overlap of the flange 8 through the skirt 10 in the immediate transition region or connection area to the Support surface 25 of the end wall 9 to achieve. Depending on the extent of the projection of the extension 35 and its axial distancing from the support plane 26 can thus also in the apron 10 and the apron parts 19 to 21, a holder or up to an additional locking or fixing the closure cap 3 on the flange 8 and thus on the packaging container 2 can be achieved.

Furthermore, on the end wall 9, a projection 36, which protrudes in the direction of the open lid end 13 and preferably runs peripherally, may be arranged or formed. In this case, the projection 36 is arranged in the axial section of the skirt 10 in the radial direction in the direction of the longitudinal axis 11 is arranged at a distance. Furthermore, it would still be possible that the projection 36 also protrudes into the male open end 4 of the packaging container 2. Depending on the radial spacing and mutual coordination, the projection 36 can also serve to abut it against the inner surface of the packaging container 2 or the flange 8 and form a type of circumferential sealing lip.

The end wall 9 in the region of its edge-side support surface 25 forms in cooperation with the skirt 10 and the neck 36 a substantially U-shaped downwards in the direction of the open lid end 13 receiving space for the flange 8.

The closure lid 3 can be formed entirely from a material which can preferably be processed in an injection molding process. For example, plastics and compostable materials or the like have been reinforced. Thus, for example, polypropylene (PP), polyamide (PA), polystyrene (PS), polycarbonate (PC) and unspecified further, sprayable materials can be used here as plastics.

However, it would also be conceivable to produce the closure lid 3 in a deep-drawing process or another forming process.

Another possibility for the formation of the closure lid 3 would still be that this, as has already been described for the combination packaging container, is formed by a combination component. In this case, for example, a cover mirror 37 could be formed from a different material to the plastic material of a lid edge 38. To save mass of plastic material for forming the closure lid 3, for example, the lid mirror 37 may be formed in a predominant proportion of a carrier layer formed predominantly of paper or cardboard. The lid edge 38 may be formed, for example, by an injection molding process.

In the Fig. 6 is a further and possibly independent, not covered by the scope of protection embodiment of the closure lid 3 is shown, again for like parts, the same reference numerals or component names as in the preceding Fig. 1 to 5 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 to 5 referred or referred.
Also in this embodiment shown here is provided that arranged by the attached to the tamper evident 12 locking means 28 at a patch on the packaging container 2 position of the closure lid 3 acting in the axial direction latching between the locking means and the locking surfaces arranged thereon 29 and the flange 8 takes place. Thus, in this embodiment, a plurality of locking means 28 are arranged one behind the other on the tamper-evident flap 12 in the circumferential direction. These protrude in the radial direction from the tamper-evident flap 12, in particular from its inner side or inner surface, onto the longitudinal axis 11. These latching means 28 in turn also have the latching surfaces 29 which are arranged in the axial direction away from the support plane 25 defined by the support surface 25 in the direction of the open lid end 13.
The tamper-evident flap 12 has an arcuate, in particular circular-arc, longitudinal course which is aligned approximately in the manner of the skirt 10, wherein the tamper-evident flap 12 is arranged on the edge along the end wall 9 and connected thereto at least in sections. In order to enable separation or pivoting-up of the tamper-evident strap 12 here as well, it is also possible to provide a predetermined separation region or a weakened region in the transition region or attachment region of the tamper-evident flap 12 to the end wall 9. Furthermore, here too the tamper-evident flap 12 is arranged or accommodated between the skirt part ends 22, 23 of the respective skirt parts 19 to 21 facing each other in the circumferential direction. Furthermore, the tamper-evident tab 12 is connected to the skirting-member ends 22, 23 facing each other. The arrangement or the provision of the previously described desired separation region 33 can be carried out analogously to the previously described embodiments.
For technical reasons to form the individual locking means 28, which are designed here as web-shaped or finger-shaped extensions, in the lid edge 38 between the outer edge of the end wall 9 and the end wall 9 facing portion of the tamper-evident tab 12 additional recesses 39 may be provided. These serve to be able to form the individual locking means 28 in an injection molding process.

It should be noted that due to the provision of the recesses 39 in the region of the individual locking means 28 directly opposite the end wall 9 no physical support surface 25 is arranged, however, the locking means 28 engages with its locking surface 29, the flange 8 in the radial direction and thus also in the radial direction Direction seen in overlapping position with respect to the support surface 25 is arranged.

In these embodiments of the tamper-evident flap 12 described herein for forming a tamper-evident device between the packaging container 2 and the closure lid 3, the latching means 28 and / or the tamper-evident flap 12 are themselves elastically deformable in the radial direction for the placement process. Thus, a simple closing operation can be performed. After filling, the closure lid 3 is placed on the open end 4 of the packaging container 2 and pressed against it with a compressive force acting in the axial direction. In the course of Aufsetzbewegung the locking means 28 and the forming these original tabs 12 are widened by the flange 8 in the radial direction, whereby the latching means 28 is displaced with its locking surfaces 29 in the axial direction on the flange 8 on its bottom 5 side facing on further carried out Aufsetzbewegung are and then in a the flange 8 on its side facing away from the support surface 24 engages behind engaging detent position automatically. Thus, in an axial lifting movement of the closure lid 3, the latching surfaces 29 are brought to bear against the bottom 5 of the underside of the flange 8 and are supported thereon. Thus, a detachment of the closure lid 3 from the packaging container 2 can be effected only by severing or destroying at least one of the tamper-evident tabs 12.

If a cuff-shaped outer part 15 is provided, this is usually wound from a planar blank to form a jacket. By winding the blank, ends facing each other are then connected together in an overlapping area. This is usually done by a so-called overlap seam. The winding and the subsequent connection of the two ends can, as already from the prior Technique is well known, for example, done by gluing. As an example, here on the EP 0 408 515 B1 referred or referred.

The unifying of the cuff-shaped outer part 15 with the inner container 14 or the application to the inner container 14 can be carried out or carried out in various ways.

A first possibility is to first wind the blank into a jacket and then to join the facing ends together. The outer part prepared in this way is then placed in a mold cavity of a thermoforming mold and only then subsequently the inner container 14 to be produced is formed by a deep-drawing process starting from a preheated layer of a deformable material. As a result, the material forming the inner container 14 is applied to the inner surface of the sleeve-shaped outer part 15. This production method can be referred to as a so-called inline method.

A second possibility provides, first to wrap the blank to a coat and then connect the ends facing each other. Separately, the inner container 14 is preferably made by a deep drawing process. Since the spatial shape of the inner container is always the same for certain products, but the printing of the applied outer part is dependent on the contents, it can be so easily taken into account in the subsequent joining process. Depending on requirements and requirements, the prepared inner container 14 can be combined with the corresponding outer part 15 to the combined packaging container. This can e.g. be carried out by either the cuff-shaped outer part 15 is pushed onto the inner container 14 or the inner container 14 is inserted into the cuff-shaped outer part 15.

There is also another possibility to apply the blank to the inner container 14. Here only a flat blank is prepared, but not yet formed into a cuff-shaped outer part 15. The inner container 14 is preferably manufactured separately by a deep drawing process. The inner container 14 is attached to apply the blank on a retaining mandrel, then pre-positioned the blank in the region of the container shell 17, possibly even connected thereto, and then to the container shell 17 wrapped around. The then overlapping ends of the blank are then connected together in their overlapping area.

The cuff-shaped outer part 14 is preferably formed from a cardboard material with a sufficient strength with respect to the recording and transmission of particular axially acting compressive forces and wound from a planar blank to a shell, as already well known. The blank is usually printed in its undeformed flat position and optionally provided with an additional coating. The material used is usually a cellulosic material, and this may also be a cardboard or strong paper produced in the recycling process. If a layer or position of the outer part 14 is formed from a recycled material, an additional layer of a higher-quality paper can be arranged or connected to at least one of the surfaces. This additional layer is used for perfect printing for the production of ornaments, labels and product information.

The sleeve-like or shell-like outer part 14 leads to an additional reinforcement or stiffening effect of the inner container 15 and thus of the entire combination packaging container.

This is given on the one hand a high strength and good thermal insulation and on the other hand, an optimal light protection for the contents of the packaging container.

In this case, it may in particular also be provided that the cardboard is additionally coated or sealed in the region of the cut edges with a water-repellent material. This is particularly advantageous when the packaging containers are exposed to increased moisture access. By coating the cardboard used for the outer part 14 with a water-repellent layer is namely prevented that it comes in a humid environment to swelling of the carton and finally to a detachment from the container shell 17 of the packaging container 2, in particular of the inner container 14.

As a container shell 17 that portion of the inner container 14 is understood, which extends between the open end 4, in particular the flange 8, and the bottom 5 in a predominantly axial direction. Preferably, the inner container 14 with its container casing 17 designed such that it tapers conically starting from the open end 4 towards the bottom 5.

As a material for the shell-like outer part 14 cardboard but also a plastic or an alternative plastic can be used with biodegradable properties. In particular, it is also possible to use a composite material which is composed of several layers of different materials, such as cardboard, plastic, but also metal foils. In the case of using a cardboard material is provided to provide the corresponding outer part 14 with a water-repellent layer. This can e.g. by using a laminated with a plastic film cardboard strip, which is tailored to take place.

An alternative to conventional, often no longer usable and thus after their use to waste packaging materials are packaging, which are formed for the greater part or even completely from compostable materials. They are made of biodegradable materials and consist partly or completely of renewable raw materials, such as starch, cellulose or polylactic acid. These materials are suitable as packaging materials for various products, for example for food.

The embodiments show possible embodiments of the packaging unit 1, in particular its closure cover 3, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather various combinations of the individual embodiments are possible with each other and this variation possibility due to Teaching for technical action by objective invention in the skill of those working in this technical field is the expert.

Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.

The task underlying the independent inventive solutions can be taken from the description.

Above all, the individual in the Fig. 1 ; 2 to 5 shown embodiments form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the packaging unit 1, this or its components have been shown partly unevenly and / or enlarged and / or reduced in size. <B> Reference Numbers </ b> 1 Packaging Unit 31 receiving slot 2 packaging container 32 second end face 3 cap 33 Sweet break area 4 open end 34 palm 5 ground 35 extension 6 closed end 36 approach 7 container wall 37 lid surface 8th flange 38 cover edge 9 bulkhead 39 recess 10 apron 11 longitudinal axis 12 originality tab 13 open lid end 14 inner container 15 outer part 16 container bottom 17 container jacket 18 closure element 19 skirt portion 20 skirt portion 21 skirt portion 22 Skirt portion end 23 Skirt portion end 24 bearing surface 25 supporting 26 support plane 27 free space 28 latching means 29 Rest area 30 first end face

Claims (12)

1. A closure cover (3) with tamperproof securing means for an open end (4) of a packaging container (2), a flange (8) which protrudes radially over a container wall (7) being arranged on the packaging container (2), comprising
   a front wall (9),
   a skirt (10) which is arranged on the edge side on the front wall (9) and defines a longitudinal axis (11),
   at least one tamperproof tab (12),
   wherein the skirt (10) on its side remote from the front wall (9) forms an open cover end (13), wherein
   in an external peripheral region of the front wall (9) a support surface (25) is formed on the side thereof facing the open cover end (13), said support surface (25) defining a support plane (26) and the skirt (10) bearing against the support surface (25) on the edge side,
   wherein the skirt (10) is formed by a plurality of skirt parts (19, 20, 21) which are arranged spaced apart from one another in the peripheral direction and the skirt parts (19, 20, 21) are defined in each case on the periphery by skirt part ends (22, 23), and the skirt parts (19,20, 21) are configured so as to be curved in an arcuate manner in the peripheral direction, in particular by circular arc portions,
   and wherein a free space (27) is configured between the skirt part ends (22, 23) of the skirt parts (19, 20, 21) which face one another in each case in the peripheral direction, wherein the tamperproof tab (12) is arranged in the free space (27) and is connected to the skirt part ends (22, 23) which face one another,
   and at least one latching means (28) is provided on the tamperproof tab (12) on the side thereof facing the support surface (25), which latching means (28) in the axial direction is arranged spaced apart from the support plane (26) defined by the support surface (25), in the direction of the open cover end (13), and a latching surface (29) facing the support plane (26) is configured on the latching means (28),
   wherein the latching surface (29) of the latching means (28), viewed in the radial direction, is arranged in an overlapping position relative to the support surface (25), and the axial spacing of the latching means (28) from the support surface (25) serves for receiving a partial portion of the flange (8) and for engaging behind said flange (8) and wherein the latching surface (29) is formed by a first front face (30) of the tamperproof tab (12) and the first front face (30) is arranged continuously spaced apart from the support surface (25) in the peripheral direction,
   characterised in that
   the first front face (30) of the tamperproof tab (12) is configured to extend in a linear manner between the skirt part ends (22, 23) which respectively face one another in the peripheral direction, and in that a second front face (32) of the tamperproof tab (12) which is arranged in the region of the open cover end (13), viewed in the peripheral direction, has an arcuate longitudinal path protruding radially outwardly toward the side remote from the longitudinal axis (11) and extending in a curved manner and
   in that, viewed in axial section, the tamperproof tab (12) at least in the region of half of the peripheral extent thereof is configured to widen starting from the first front face (30) toward the side remote from the longitudinal axis (11), and thus the tamperproof tab (12) at least in the central region thereof has an oblique position relative to the longitudinal axis (11) and the oblique position relative to the longitudinal axis (11) in each case reduces toward the skirt part ends (22, 23).
2. The closure cover (3) according to claim 1, characterised in that a set rupture region (33) is configured at least between a skirt part end (22, 23) and the tamperproof tab (12) connected thereto.
3. The closure cover (3) according to claim 1, characterised in that at least one set rupture region (33) is configured in the tamperproof tab (12) between the skirt part ends (22, 23) facing one another.
4. The closure cover (3) according to claim 2 or 3, characterised in that the set rupture region (33) is configured by a weakened line in the material or a perforation.
5. The closure cover (3) according to one of the preceding claims, characterised in that an extension (35) protruding in the direction towards the longitudinal axis (11) is at least partially arranged on an inner surface (34) of the skirt parts (19 to 21) forming the skirt (10), said extension (35) being spaced apart in the axial direction from the support plane (26) in the direction towards the open cover end (13).
6. The closure cover (3) according to one of the preceding claims, characterised in that a preferably peripheral shoulder (36) protruding in the direction towards the open cover end (13) is arranged on the front wall (9), said shoulder (36) being arranged spaced apart from the skirt (10) in the radial direction, toward the longitudinal axis (11), and protruding into the open end (4) of the packaging container (2) to be received.
7. The closure cover (3) according to one of the preceding claims, characterised in that said closure cover (3) is formed by a combined component, wherein a cover top surface (37) is formed from a material which is different from the plastics material of a cover edge (38).
8. The closure cover (3) according to claim 7, characterised in that in a substantial proportion the cover top surface (37) is formed from a carrier layer formed primarily from paper or cardboard, the cover edge (38) being integrally formed thereon.
9. A packaging unit (1) comprising a packaging container (2) having an open end (4) and an end (6) closed by a base (5), wherein a container wall (7) extends between the open end (4) and the base (5), and a flange (8) protruding radially over the container wall (7) is arranged in the region of the open end (4), as well as a closure cover (3) for closing the open end (4), characterised in that the closure cover (3) is configured according to one of claims 1 to 8.
10. The packaging unit (1) according to claim 9, characterised in that in the closure cover (3) positioned on the packaging container (2), the support surface (25) formed by the front wall (9) bears against the flange (8), and the flange (8) is engaged behind by the at least one latching surface (29) of the latching means (28) of the tamperproof tab (12) in the radial direction toward the longitudinal axis (11) on its side facing the base (5).
11. The packaging unit (1) according to claim 9 or 10, characterised in that the open end (4) of the packaging container (2) is closed by an additional closure element (18), wherein the closure element (18) is connected by a material connection to the flange (8).
12. The packaging unit (1) according to one of claims 9 to 11, characterised in that the packaging container (2) is formed by a combination packaging container comprising an internal container (14) with a container base (16), a container casing (17) and a flange (8), as well as a sleeve-shaped external part (15) at least partially covering the internal container (14) in the region of its container casing (17).

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