CN118302366A - Opening device for a package and package with an opening device - Google Patents

Abstract

An opening device (3) for a package (1) having a body (2) filled with a pourable product is described. The opening device (3) comprises a collar (9) having an inner surface (15) defining a flow channel (10) for the pourable product and having a pouring outlet (11), a closure assembly (12) coupled to the collar (9) and configured to selectively open and close the pouring outlet (11), and one or more annular protruding elements (19) extending from the inner surface (15) and into the flow channel (10). The closure assembly (12) includes a closure (17) and a sealing lip (18) extending from the closure (17), the closure (17) being configured to selectively open and close the pouring outlet (11) when in an open position and a closed position, respectively. When the closure (17) is in the closed position, the sealing lip (18) extends into the flow channel (10). The sealing lip (18) interacts with at least one of the one or more annular protruding elements (19) to cooperate with the annular protruding element (19) to seal the pouring outlet (11) when the closure (17) is in the closed position.

Description

Opening device for a package and package with an opening device

Technical Field

The present invention relates to an opening device for packages, in particular packages having a body filled with a pourable product, even more particularly a pourable food product.

Furthermore, the present invention relates to a package having a body filled with a pourable product, even more specifically a pourable food product, and an opening device coupled to the body.

Background

It is well known that many liquid or pourable food products, such as fruit juice, milk-based beverage, drinkable yoghurt, wine, tomato sauce, salt, sugar, etc., are sold in packages, in particular in sealed packages made of sterile packaging material.

A typical example is a parallelepiped-shaped package for pourable food products, called Tetra Brik Aseptic (registered trademark), made by sealing and folding a laminated strip packaging material. The packaging material has a multilayer structure comprising a paperboard and/or paper base layer covered on both sides with layers of heat-seal plastic material, such as polyethylene. For aseptic packages of long-storage products, the packaging material also comprises a layer of oxygen-barrier material, for example aluminium foil, superimposed on the layer of heat-seal plastic material and then covered by a further layer of heat-seal plastic material forming the inner surface of the package eventually contacting the food product.

This type of package therefore comprises a body formed of a multilayer packaging material and having a designated pouring opening which allows the pourable product to be poured from the package. In addition, the package may include an opening device coupled to the body and disposed about the designated pour opening. The opening device is designed to seal the package and allow for controlled pouring prior to first opening the opening device.

A typical opening device includes a collar having an inner surface defining a flow passage and having a pouring outlet, and a closure assembly configured to selectively open and close the pouring outlet.

Some closure assemblies also include a closure and a sealing lip that extends from the closure into the flow channel when the closure covers the pouring outlet. In addition, the sealing lip contacts the inner surface to seal the flow channel such that the pourable product does not leak from the flow channel.

Although the known opening devices work satisfactorily, there is still a desire in the art to improve the known opening devices, in particular in order to improve the sealing effect obtained by the coupling between collar and sealing lip.

Disclosure of Invention

It is therefore an object of the present invention to provide an improved opening device for packages, in particular packages having a body formed of a multi-layer packaging material filled with a pourable product, even more particularly packages filled with a product of a pourable food product, in a simple and low cost manner.

In particular, it is an object of the present invention to provide in a simple and low-cost manner an improved opening device for packages, in particular packages having a body formed of a multi-layer packaging material and filled with a pourable product, more particularly packages filled with a pourable food product, which opening device has improved sealing properties.

Another object of the present invention is to provide a package, in particular a package having a body formed of a multi-layer packaging material, filled with a pourable product, in particular a pourable food product, having an opening device, in particular an opening device with improved sealing properties, in a simple and low cost manner.

According to the present invention, an opening device according to the independent claim is provided.

Further advantageous embodiments of the opening device are specified directly or indirectly in the claims depending on claim 1.

According to the present invention, there is also provided a package according to claim 13, claim 14 or claim 15.

Drawings

Non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of a portion of a package having an opening device according to the present invention, with some parts removed for clarity;

FIG. 2 is a perspective view of the package of FIG. 1, and focuses on the details of the opening device of FIG. 1, with some components removed for clarity;

FIG. 3 is a perspective view of a detail of the opening device of FIG. 1 with some components removed for clarity;

FIG. 4 is a cross-sectional view of the opening device of FIG. 1 with some components removed for clarity;

FIG. 5a is an enlarged cross-sectional view of a detail of the opening device of FIG. 1, with parts removed for clarity; and

Fig. 5b is an enlarged cross-sectional perspective view of a detail of the opening device of fig. 1, with parts removed for clarity.

Detailed Description

Numeral 1 indicates the whole package (only partially shown to the extent necessary for an understanding of the invention) comprising:

-a body 2, in particular a body 2 formed of a multi-layer packaging material, filled and/or fillable with a pourable product, in particular a pourable food product, and in particular having a designated pouring opening (not shown and known per se) configured to allow the pourable product to flow out of body 2;

And

Opening device 3, in particular formed of a polymeric material, coupled to body 2 around a designated pouring opening and configured to seal the designated pouring opening and be controllable so as to open the designated pouring opening and allow pouring of the pourable product.

The pourable product may be milk, tomato sauce, milk-based beverage, drinkable yoghurt, water, sugar, salt, fruit juice, emulsion, etc.

According to some preferred non-limiting embodiments, the packaging material may comprise: at least one layer of fibrous material, such as a layer of paper or paperboard; and at least two layers of heat-seal plastic material, such as polyethylene, with layers of fibrous material interposed between each other. One of the two layers of heat-seal plastic material may define an inner surface of the body 2 that contacts the pourable product.

Preferably, the packaging material may also comprise a layer of a gas-and light-blocking material, such as an aluminium foil or an ethylene vinyl alcohol (EVOH) film, which is in particular arranged between one of the layers of heat-seal plastic material and the layer of fibrous material. Preferably, but not necessarily, the packaging material may further comprise a further layer of heat-sealable plastic material interposed between the layer of light-blocking and gas-blocking material and the layer of fibrous material.

Preferably, each package 1, in particular the respective body 2, is obtainable from a respective blank of multilayer packaging material. In particular, the blank may define a precursor of the respective package 1, in particular of the respective body 2.

In more detail, the respective blank may comprise a respective designated pouring opening, which may in particular be covered by a separating film. The separation membrane may be formed of a gas barrier material, in particular, the separation membrane may be defined by a portion of a layer of a gas barrier and light barrier material and/or a layer of a heat seal plastic material.

According to some preferred, non-limiting embodiments, the multi-layer packaging material may be provided in the form of a roll, whereby the blanks may be arranged continuously with respect to each other. In forming package 1, the web is formed into a tube, sealed longitudinally, filled with pourable product and sealed transversely and cut according to the extension of the blank.

According to a preferred, non-limiting embodiment, each opening device 3 may be applied, in particular molded or glued, to the respective body 2 or to the respective packaging blank. Preferably, each opening device 3 may be molded onto the respective packaging blank and around the designated pouring opening. In particular and as will be explained further below, a first portion of the opening device 3 may be molded onto a corresponding package blank, and a second portion of the opening device 3 may be applied onto the first portion after the first portion is molded.

In particular, the opening devices 3 can be molded by means of corresponding molds.

With particular reference to fig. 1 and 2, the body 2 may extend along a longitudinal axis a, a first transverse axis B perpendicular to the longitudinal axis a, and a second transverse axis C perpendicular to the first transverse axis B and the longitudinal axis a. In particular, the extension of package 2 along longitudinal axis a may be greater than the extension of package 2 along first and second lateral axes B, C.

Preferably, the body 2 may be parallelepiped-shaped.

According to some preferred non-limiting embodiments, the body 2 may comprise a first wall (not shown and known per se) which is in particular transverse, even more in particular perpendicular to the longitudinal axis a, from which the body 2 may extend along the longitudinal axis a. Preferably, the first wall may define a support surface of the package 1, in particular of the body 2, which may be designed to be in contact with a support, such as a shelf, in use, for example when displayed in a point of sale or when stored. In particular, the first wall may define a bottom wall when arranged on the support.

Preferably, the body 2 may further comprise a side wall 4, the side wall 4 being (fixedly) connected to the first wall and extending from the first wall along the longitudinal axis a (in particular substantially parallel to the longitudinal axis a).

Preferably, the body 2 may further comprise a second wall 5 opposite the first wall and (fixedly) connected to the side wall 4. In particular, the side wall 4 may be interposed between the first wall and the second wall 5.

In particular, the second wall 5 may define a top wall when the package 1 is arranged on the support.

According to the non-limiting embodiment shown, the first wall and the second wall 5 may be parallel to each other.

According to a non-limiting alternative embodiment, not shown, the first wall and the second wall 5 may be inclined with respect to each other. In particular, the second wall 5 may define an inclined top or may define a portion of a mountain-shaped top.

According to some non-limiting embodiments, the second wall 5 may carry and/or comprise a designated pouring opening.

According to some preferred non-limiting embodiments, the package 1, in particular the body 2, may comprise an inner space configured to contain and/or contain a pourable product. In particular, the first wall, the side wall 4 and the second wall 5 may delimit an inner space.

With particular reference to fig. 1 to 5b, the opening device 3 may comprise:

a collar 9 defining a flow channel 10 for a pourable product and having a pouring outlet 11; and

A closure assembly 12 coupled to collar 9 and configured to selectively open and close pouring outlet 11.

Furthermore, the opening device 3 may also comprise a base frame 13, the base frame 13 being configured to couple the opening device 3 and/or to have coupled (configured to couple and/or coupling opening device 3) the opening device 3 to the body 2, in particular to the second wall 5, and around the designated pouring opening.

In particular, the collar 9 may extend from the base frame 13.

Preferably, the collar 9 and the base 13 may be integrally connected to each other. Even more preferably, the collar 9 and the base 13 may be made in one piece.

In addition, the closure assembly 12 may be manufactured as a separate component. In particular, the closure assembly 12 may be coupled to the collar 9 after the collar 9 is formed.

More specifically, collar 9 may also include an inlet opening 14, which inlet opening 14 is configured to allow introduction of a pourable product into flow channel 10. In particular, the inlet opening 14 may be arranged opposite the pouring outlet 11.

In more detail, the collar 9 may extend along the central axis E. In particular, the pouring outlet 11 and the inlet opening 14 may be arranged at respective axial ends of the collar 9.

Furthermore, the collar 9 comprises an inner surface 15 delimiting the flow channel 10.

In addition, collar 9 may also include an outer surface 16 opposite inner surface 15.

With particular reference to fig. 1,3, 4 and 5a, the closure assembly 12 includes a closure 17 configured to selectively open and close the pouring outlet 11.

The closure 17 is movable between:

A closed position in which closure 17 closes and/or covers pouring outlet 11, in particular for preventing the flow of pourable product from pouring outlet 11; and

An open position in which closure 17 is removable from pouring outlet 11, in particular for allowing the pourable product to flow out through pouring outlet 11.

In other words, the closure 17 may be configured to selectively open and close the pouring outlet 11 when in the open and closed positions, respectively.

Preferably, the closure 17 is reversibly movable between a closed position and an open position.

The closure assembly 12 further includes a sealing lip 18, particularly an annular sealing lip 18, extending from the closure 17. In particular, the sealing lip 18 may be integrally connected to the closure 17.

In more detail, the sealing lip 18 may extend into the flow channel 10 when the closure 17 is in the closed position.

Advantageously and with particular reference to fig. 4, 5a and 5b, the opening device 3 further comprises one or more annular protruding elements 19, in the specific case shown three, which extend from the inner surface 15 and into the flow channel 10. Each of the one or more annular protruding elements 19 may be integral with the inner surface 15.

When the closure 17 is in the closed position, the sealing lip 18 interacts with, in particular contacts, at least one of the one or more annular protruding elements 19 to seal the pouring outlet 11 in cooperation with the annular protruding element 19. In particular, the interaction between the sealing lip 18 and the annular projecting element 19 determines the tightness of the opening device 3 when the closure 17 is in the closed position.

More specifically, by sealing the pouring outlet 11 when the closure 17 is arranged in the closed position, it is ensured that the pourable product does not leak out of the flow channel 10 when the closure 17 is in the closed position.

More precisely, the overall sealing of the pouring spout 11 is caused by the interaction of the sealing lip 18 with at least one of the one or more annular protruding elements 19 and the presence of the closure 17.

With particular reference to figures 1, 3 and 5a, the closure 17 comprises a main wall 25 and a lateral annular wall 26, the lateral annular wall 26 being integrally connected to the main wall 25 and protruding laterally from the main wall 25. In particular, when the closure 17 is arranged in the closed position, the main wall 25 covers the pouring outlet 11 (in other words, the main wall 25 is superposed on the pouring outlet 11) and the lateral annular wall 26 at least partially surrounds the collar 9, in particular facing the outer surface 16.

Preferably, the sealing lip 18 is integrally connected to the main wall 25, in particular the inner surface 27 of the main wall 25, and extends from the main wall 25, in particular the inner surface 27 of the main wall 25.

In particular, the inner surface 27 may face the flow channel 10 when the closure 17 is in the closed position.

According to some preferred non-limiting embodiments, the opening device 3 may comprise at least two, preferably at least three annular protruding elements 19. Depending on the actual position of the sealing lip 18 within the flow channel 10 when the closure 17 is in the closed position, it may occur that the sealing lip 18 only contacts one of the annular protruding elements 19 (which is still sufficient to improve the tightness of the opening device 3, wherein the closure 17 is in the closed position). Such an example situation is for example shown in fig. 4 and 5 a.

It should be noted that the actual position of the sealing lip 18 may vary between successive placements of the closure member 17 in the closed position. Thus, the sealing lip 18 may have a position where the sealing lip 18 contacts only one of the annular protruding elements 19, but the sealing lip 18 may also have a position where the sealing lip 18 contacts two or more annular protruding elements 19.

In particular, by having more than one annular projecting element 19, it is ensured that the sealing lip 18 interacts with at least one of the annular projecting elements 19 in order to obtain a sealing effect, independently of the actual position.

Preferably, the annular protruding elements 19 are axially displaceable (with respect to the central axis E) with respect to each other.

Preferably, each annular projecting element 19 may comprise a tip portion 28.

According to some possible embodiments, each annular projecting element 19 may have a respective radial extension.

It is possible that the respective radial extensions of the annular protruding elements 19 may be different from each other, or that at least two annular protruding elements 19 may have the same radial extension, or that at least one annular protruding element 19 may have a different radial extension than the radial extension of the other annular protruding elements 19.

It is also possible that the radial extension of each annular protruding element 19 into the flow channel 10 may be such that each tip portion 28 may be located on and/or in contact with an imaginary cylinder surface (of an imaginary cylinder placed within the flow channel 10). In other words, when considering the cross section of the annular projecting element 19 with respect to the cross section having the central axis E, the respective points originating from the tip portion 28 are located on a straight line.

Preferably, at least one annular protruding element 19 may be arranged adjacent to the pouring outlet 11.

More precisely, the at least one annular protruding element 19 may be axially displaced from the edge 29 of the collar 9, adjacent to the edge 29, and with respect to the central axis E, the edge 29 defining the pouring outlet 11.

According to some preferred, non-limiting embodiments, one or more annular protruding elements 19 may protrude into the first region 30 of the flow channel 10. In particular, the first region 30 may extend from the pouring outlet 11 and towards the inlet opening 14.

Furthermore, the flow channel 10 may comprise a second region 31, which is different from the first region 30 and extends towards the inlet opening 14. In particular, the second region 31 may extend from the first region 30 to the inlet opening 14.

Preferably, the extension of the first region 30 may correspond to at most one third of the extension of the flow channel 10 from the pouring outlet 11 to the inlet opening 14. In other words, the extension of the second region 31 may correspond to at least two-thirds of the extension of the flow channel 10 from the pouring outlet 11 to the inlet opening 14. Thus, the extension of the sealing lip 18 can be kept within certain limits.

In more detail, the one or more annular protruding elements 19 may be arranged coaxially with respect to the central axis E. Specifically, each tip portion 28 may lie in a respective plane perpendicular to the central axis E.

Preferably, the sealing lip 18 may have an outer diameter equal to or substantially equal to the inner diameter of the collar 9. Alternatively, the outer diameter may be equal or substantially equal to the inner diameter defined by the one or more annular protruding elements 19. In this way, it is ensured that the sealing lip 18 is able to enter the flow channel 10 and to interact with at least one of the annular protruding elements 19, in particular irrespective of the actual position of the sealing lip 18 within the flow channel 10.

With particular reference to fig. 3, 4 and 5a, the sealing lip 18 may include at least one curved portion, and in particular at least one curved end portion 32.

In addition, the sealing lip 18 may also comprise a connecting portion 33, which connecting portion 33 is connected, in particular integrally connected, to the closure 17, in particular to the main wall 25, even more in particular to the inner surface 27.

Preferably, at least one curved portion, in particular the curved end portion 32, may be connected to the connecting portion 33.

Returning again to fig. 2, 3 and 4, the opening device 3 may further comprise a closing element 37, which closing element 37 is arranged and/or arrangeable within the flow channel 10 and is configured to close the flow channel 10 when arranged within the flow channel 10, i.e. the closing element 37 may be arranged within the flow channel 10 in order to interrupt the fluid connection between the inlet opening 14 and the pouring outlet 11.

In particular, the closing element 37 may be arranged within the flow channel 10.

Preferably, the closing element 37 is coaxially positionable with respect to the collar 9.

Preferably, the base 13, collar 9 and closing element 37 may be made in one piece.

In particular, the closing element 37 may be rupturably fixed to the collar 9, in particular the inner surface 15. Even more specifically, during the first movement of the closure element 37 away from the collar 9 and/or away from the flow channel 10, the closure element 37 is irreversibly broken, i.e. when the closure element 37 is replaced within the flow channel 10, the closure element 37 may again contact the collar 9, in particular the inner surface 15, but not be secured again to the collar 9, in particular the inner surface 15.

In more detail, the closing element 37 may comprise:

A membrane wall 38, which is rupturably fixed to collar 9, in particular inner surface 15; and

A coupling structure 39 extending from the membrane wall 38 and operatively coupling the closure element 37 to the closure assembly 12, in particular the closure 17.

Specifically, the coupling structure 39 may be integral with the membrane wall 38 and may extend from the membrane wall 38.

More specifically, the membrane wall 38 may be configured to be rupturably separated from the collar 9, in particular the inner surface 15, so as to allow a fluid connection between the inlet opening 14 and the pouring outlet 11, thereby allowing pouring of the pourable product.

In more detail, the membrane wall 38 is controllable between an activated position, in which the membrane wall 38 is arranged within the flow channel 10 for interrupting the fluid connection between the pouring outlet 11 and the inlet opening 14, and an inactivated position, in which the membrane wall 38 is positioned outside the flow channel 10 for allowing the fluid connection between the pouring outlet 11 and the inlet opening 14.

In particular, when the coupling structure 39 couples the closure element 37, in particular the main wall 25, to the closure 17, the membrane wall 38 is in the activated and deactivated positions when the closure 17 is in the closed and open positions, respectively.

More specifically, the coupling structure 39 may be welded and/or bonded and/or fused to the closure assembly 12, particularly the closure 17, and even more particularly the inner surface 27.

According to some preferred non-limiting embodiments, the closure assembly 12 may include a coupling ring 40 disposed about the collar 9.

In particular, the closure 17 may be coupled, in particular tied, even more particularly hinged, to the coupling ring 40.

Preferably, the closure 17 can be hinged to the coupling ring 40 and can be angularly moved about the hinge axis and between a closed position and an open position.

Preferably, the closure assembly 12 may also include one or more breakable coupling bridges that are rupturably connected to the coupling ring 40 and the closure 17, particularly the side walls 26, and are configured to irreversibly break during a first movement of the closure 17 from the closed position to the open position.

According to some non-limiting embodiments, the base 13, the collar 9, the annular projecting element 19 and the closing element 37 may be integrally formed, in particular in one piece. In particular, the base frame 13, the collar 9 and the closure element 37 may be formed during a moulding process, in particular during the moulding of the opening device 3 onto a respective package blank.

Furthermore, the closure assembly 12 may be coupled to the collar 9 after the base 13, collar 9 and closure element 37 are formed.

In other words, the base 13, the collar 9, the annular projecting element 19 and the closing element 37 may define a first portion of the opening device 3, while the closing assembly 12 may define a second portion of the opening device 3. Thus, after moulding the base 13, the collar 9, the annular projecting element 19 and the closing element 37, the closing assembly 12 is applied to the collar 9, in particular around the designated pouring opening.

In particular, the moulding of the first portion onto the body 2 or onto the blank defining the precursor of the body 2 depends on the use of the respective mould.

In use, a user receives the package 1 with the closure 17 in the closed position. In addition, the membrane wall 38 is in the activated position and still rupturably connected to the collar 9.

To obtain a pourable product, the user needs to control the closure 17 from the closed position to the open position, in particular also causing the membrane wall 38 to move from the activated position to the deactivated position and the membrane wall 38 to rupture from the collar 9. This then allows the pourable product to flow from the interior space through the flow channel 10 and out the pouring outlet 11.

Thereafter, the closure 17 can be repeatedly moved between the open and closed positions. Each time the closure 17 is moved to the closed position, the sealing lip 18 seals the flow channel 10 by interacting, in particular contacting, with at least one of the annular protruding elements 19.

In particular, the sealing lip 18 contacts the at least one annular projecting element 19 in any angular position.

The advantages of the opening device 3 and/or the package 1 according to the invention will be apparent from the foregoing description.

In particular, by having one or more annular protruding elements 19, the tightness of the opening device 3 can be improved compared to prior art opening devices.

Another advantage is that the guarantee of tightness is independent of the actual position of the sealing lip 18, which sealing lip 18 may be slightly different each time the closure 17 is placed in the closed position.

Another advantage is seen in that the tightness is ensured for any shape of the sealing lip 18.

It is however evident that modifications may be made to the opening device 3 and/or to the package 1 described herein without departing from the scope of protection as defined in the appended claims.

Claims (15)

1. -Opening means (3) for a package (1), the package (1) having a body (2) filled with a pourable product;

The opening device (3) comprises:

-a collar (9) having an inner surface (15) defining a flow channel (10) of the pourable product and having a pouring outlet (11);

-a closure assembly (12) coupled to the collar (9) and configured to selectively open and close the pouring outlet (11); and

-One or more annular protruding elements (19) extending from the inner surface (15) and into the flow channel (10);

Wherein the closure assembly (12) comprises a closure (17) and a sealing lip (18) extending from the closure (17), the closure (17) being configured to selectively open and close the pouring outlet (11) when in an open position and a closed position, respectively;

wherein the sealing lip (8) extends into the flow channel (10) when the closure (17) is in the closed position;

Wherein, when the closure (17) is in the closed position, the sealing lip (18) interacts with at least one of the one or more annular protruding elements (19) to cooperate with the annular protruding element (19) to seal the pouring outlet (11).

2. -Opening device according to claim 1, comprising at least two annular protruding elements (19);

Wherein the annular protruding elements (19) are axially displaced from each other along a central axis (E) of the collar.

3. -Opening device according to claim 2, wherein each annular projecting element (19) comprises a tip portion (28);

wherein an imaginary cylindrical surface contacts a respective said tip portion (28) of each annular projecting element (19).

4. -An opening device according to claim 2 or 3, wherein each annular projecting element (19) has a respective radial extension;

wherein said respective radial extension of at least one annular protruding element (19) is different from said respective radial extension of the other annular protruding elements (19).

5. -Opening device according to any one of the previous claims, wherein at least one annular protruding element (19) is arranged adjacent to the pouring outlet (11).

6. -Opening device according to any one of the preceding claims, wherein the flow channel (10) comprises a first region (30) extending from the pouring outlet (11) and a second region (31) different from the first region (30), and the second region (31) extends from the first region (30) to the inlet opening (14) of the collar (9);

Wherein the extension of the first region (30) corresponds to at most one third of the extension of the flow channel (10) from the pouring outlet (11) to the inlet opening (14);

wherein the one or more annular protruding elements (19) extend into the first region (30) of the flow channel (10).

7. -Opening device according to any one of the previous claims, wherein each of said one or more annular protruding elements (19) is integral with said inner surface (15).

8. -Opening device according to any of the previous claims, wherein the sealing lip (19) comprises at least one curved portion (32).

9. -An opening device according to any of the preceding claims, further comprising a closing element (37) arranged and/or arrangeable within the flow channel (10) and configured to close the flow channel (10).

10. -An opening device according to claim 9, wherein the closing element (37) comprises a membrane wall (38) rupturably fixed to the inner surface (15) of the collar (9) and a coupling structure (39) extending from the membrane wall (38) and operatively coupling the membrane wall (38) to the closure (17).

11. -An opening device according to any one of the preceding claims, further comprising a base frame (13) configured to couple the opening device (3) around a designated pouring opening of the body (2);

Wherein the collar (9) extends from the base frame (13).

12. -Opening device according to any one of the previous claims, wherein the closing assembly (12) comprises at least one coupling ring (40) arranged around the collar (9);

wherein the closure (17) is coupled to the coupling ring (40).

13. -A package (1) filled and/or fillable with a pourable product, and comprising at least one opening device (3) according to any one of claims 1 to 12.

14. -A package according to claim 13, wherein the package (1) comprises a body (2) having a designated pouring opening and being formed of a multi-layer packaging material, wherein the opening device (3) is coupled to the body (2) and surrounds the designated pouring opening.

15. -Package according to claim 13 or 14, wherein the opening device (3) is moulded to the body (2) of the package (1).