WO2022101385A1

WO2022101385A1 - Lid-spout assembly for a package and package having a lid-spout assembly

Info

Publication number: WO2022101385A1
Application number: PCT/EP2021/081474
Authority: WO
Inventors: Maurizio FILIPPINI; Francesca TAVONI
Original assignee: Tetra Laval Holdings and Finance SA
Current assignee: Tetra Laval Holdings and Finance SA
Priority date: 2020-11-16
Filing date: 2021-11-12
Publication date: 2022-05-19
Anticipated expiration: 2023-05-16
Also published as: CN116390887A; US20230406578A1; US12473123B2; EP4001150A1; JP2023549403A; MX2023004484A

Abstract

There is described a lid-spout assembly (3) for a package (1) having a main body (2) comprising a designated pour opening and being filled with a pourable product. The lid- spout assembly (3) comprises at least a spout (10) having a pouring outlet (11), a lid (12) configured to selectively close and open the pouring outlet (11) and a tethering element (13) tethering the lid (12) to the spout (10) and/or the main body (2). The spout (10) comprises a base frame (14) coupling and/or configured to couple the spout (10) to the main body (2) about the designated pour opening and a collar (15) carrying and/or comprising the pouring outlet (11) and being fixed to and protruding from the base frame (14). The lid (12) is moveable at least in a closed position in which the lid (12) closes and/or seals the pouring outlet (11) and an open position in which the lid (12) opens the pouring outlet (11). The lid (12) comprises an interaction ridge (29) being configured to interact with the collar (15) so as to determine a closing force with the lid (12) being arranged in the closed position for retaining the lid (12) in the closed position.

Description

LID-SPOUT ASSEMBLY FOR A PACKAGE AND PACKAGE HAVING A LIDSPOUT ASSEMBLY

TECHNICAL FIELD

The present invention relates to a lid-spout assembly for a package , in particular a package having a sealed main body, filled with a pourable product , even more particular filled with a pourable food product .

Advantageously, the present invention also relates to a package , in particular a package having a sealed main body, filled with a pourable product , even more particular filled with a pourable food product , and comprising a lid-spout assembly .

BACKGROUND ART

As is known, many pourable food products , such as fruit j uice , UHT (ultra-high-temperature treated) milk, wine , tomato sauce , etc . , are sold in packages , in particular sealed packages , made of sterili zed packaging material .

A typical example is the parallelepiped-shaped package for pourable food products known as Tetra Brik Aseptic ( registered trademark) , which is made by sealing and folding a laminated strip packaging material . The packaging material has a multilayer structure compris ing a carton and/or paper base layer, covered on both sides with layers of heat-seal plastic material , e . g . polyethylene . In the case of aseptic packages for long-storage products , the packaging material also comprises a layer of oxygen-barrier material , e . g . an aluminum foil , which is superimposed on a layer of heat-seal plastic material , and is in turn covered with another layer of heat-seal plastic material forming the inner face of the package eventually contacting the food product .

Some known packages comprise each a sealed main body having a designated pour opening and a lid-spout assembly arranged on the main body about the designated pour opening and configured to allow for a controlled outpouring of the pourable product .

Each lid-spout assembly comprises a spout having a pouring outlet and a lid removably coupled to the spout so as to selectively close and open the pouring outlet .

In order to avoid any unwanted littering of the lid, the lid-spout assembly may also comprises a tethering element connecting the lid and the spout with one another .

During the first-time use , the lid is brought to an open position .

After the first-time use it may be possible to arrange the lid in a closed position so as to cover the pouring outlet .

An inconvenience is that it may occur that the lid may move from the closed position to the open position in an uncontrolled manner .

Therefore , a des ire is felt in the sector to further improve such lid-spout assemblies .

DISCLOSURE OF INVENTION

It is therefore an obj ect of the present invention to provide in a straightforward and low-cost manner an improved lid-spout assembly for a package , in particular a package having a sealed main body, filled with a pourable product , even more particular filled with a pourable food product .

In particular, it is an obj ect of the present invention to provide in a straightforward and low-cost manner an improved lid-spout assembly for a package , in particular a packaging having a sealed main body, filled with a pourable product , even more particular fi lled with a pourable food product , which ensures that the lid does not unintentionally move from the closed position to the open position . It is a further obj ect of the present invention to provide in a straightforward and low-cost manner a package , in particular a package having a sealed main body, filled with a pourable product , in particular filled with a pourable food product , having an improved lid-spout assembly, in particular the lid-spout assembly ensuring that the lid does not unintentionally move from the closed position to the open position .

According to the present invention, there is provided a lid-spout assembly according to the independent claim .

Further advantageous embodiments of the lid-spout assembly are speci fied in the respective dependent claims .

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

BRIEF DESCRIPTION OF THE DRAWINGS

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

Figure 1 is a schematic perspective view of a package having a lid-spout assembly according to the present invention being in a first configuration, with parts removed for clarity;

Figure 2 is a schematic perspective view of the package of Figure 1 with the lid-spout assembly being in a second configuration, with parts removed for clarity;

Figure 3 is an enlarged side view of the lid-spout assembly of Figure 1 being in the first configuration, with parts removed for clarity;

Figure 4 is an enlarged lateral section view of the lid-spout assembly being in the first configuration, with parts removed for clarity;

Figure 5 is an enlarged lateral section view of the lid-spout assembly being in a third configuration, with parts removed for clarity;

Figure 6a is an enlarged section view of a detail of the lid-spout assembly being in the first configuration, with parts removed for clarity; and

Figure 6b is an enlarged section view of a detail of the lid-spout assembly being in the third configuration, with parts removed for clarity .

BEST MODES FOR CARRYING OUT THE INVENTION

Number 1 indicates as a whole a package comprising : a ( sealed) main body 2 , in particular a sealed composite body, being filled with a pourable product , in particular a pourable food product , and having a designated pour opening (not shown and known as such) configured to allow for an outflow of the pourable product from main body 2 ; and

- a lid-spout assembly 3 coupled to main body 2 arranged and/or arrangeable about the designated pour opening and configured to allow for a controlled outpouring of the pourable product from main body 2 .

According to some preferred non-limiting embodiments , main body 2 is obtained from a packaging material , in particular a composite packaging material , having a multilayer structure (not shown and known as such) .

Preferentially, the packaging material is provided in the form of a web .

Preferentially, main body 2 is obtained by forming a tube from the packaging material , longitudinally sealing the tube , filling the tube with the pourable product and by transversally sealing and cutting the tube .

Preferentially, the packaging material comprises at least one layer of fibrous material , such as e . g . paper or cardboard, and at least two layers of heat-seal plastic material , e . g . polyethylene , interposing the layer of fibrous material in between one another . One of these two layers of heat-seal plastic material defines the inner face of main body 2 contacting the pourable product .

Preferably, the packaging material also comprises a layer of gas- and light-barrier material , e . g . aluminum foil or ethylene vinyl alcohol (EVOH) film, in particular being arranged between one of the layers of the heat-seal plastic material and the layer of fibrous material . Preferentially, the packaging material also comprises a further layer of heat-seal plastic material being interposed between the layer of gas- and light-barrier material and the layer of fibrous material .

According to some non-limiting embodiments , lid-spout assembly ( ies ) 3 is/are applied to the packaging material prior to arranging the packaging material within or during advancement of the packaging material through a packaging machine for forming, filling and sealing main bodies 2 from the packaging material carrying lid-spout assembly ( ies ) 3 .

In particular, application of lid-spout assembly ( ies ) 3 to the packaging material occurs by means of a molding process and/or adhesive bonding and/or ultrasonic bonding .

With particular reference to Figures 1 and 2 , main body 2 extends along a longitudinal axis , a first transversal axis and a second transversal axis . In particular, the extension of package 2 along the longitudinal axis is larger than the extension of package 2 along the first transversal axis and the second transversal axis .

Preferentially, main body 2 is parallelepiped-shaped .

In more detail , main body 2 may comprise a first wall portion, in particular being transversal , even more particular perpendicular, to the longitudinal axis , from which main body 2 extends along the longitudinal axis . Preferentially, the first wall portion defines a support surface of package 1 , in particular of main body 2 , which is designed to be put in contact with a support , such as e . g . a shel f , when, in use , being e . g . exposed within a sales point or when being stored . In particular, when being arranged on a support the first wall portion defines a bottom wall portion of main body 2 and/or package 1 .

In further detai l , main body 2 may also comprise a plurality of lateral walls 4 being ( fixedly) connected to the first wall portion and extending, in particular substantially parallel to the longitudinal axis , from the first wall portion .

In even further detail , main body 2 may also comprise a second wall portion 5 opposite to the first wall portion and being ( fixedly) connected to at least some of lateral walls 4 . In particular, lateral walls 4 are interposed between the first wall portion and second wall portion 5 . In particular, when main body 2 is arranged on a support second wall portion 5 defines a top wall portion .

According to the non-limiting embodiment shown, the first wall portion and second wall portion 5 are inclined with respect to one another . In particular, while the first wall portion has a hori zontal orientation when being placed on the support , second wall portion 5 is inclined with respect to the first wall portion and the support .

Alternatively, the first wall portion and second wall portion 5 may be parallel to one another .

According to some preferred non-limiting embodiments , second wall portion 5 carries and/or comprises the designated pour opening and lid-spout assembly 3 is mounted to second wall portion 5 .

Furthermore , package 1 , in particular main body 2 , comprises an inner space configured to contain and/or containing the pourable product .

With particular reference to Figures 1 to 6b, lid-spout assembly 3 comprises at least :

- a spout 10 being connected or being connectable to main body 2 about the designated pouring outlet and having a pouring outlet 11 configured to allow for a ( controlled) outflow of the pourable product from spout 10 itsel f ( and main body 2 and/or package 1 and/or the inner space ) ;

- a lid 12 configured to selectively close and open pouring outlet 11 ; and

- a tethering element 13 (permanently) tethering and/or coupling lid 12 to spout 10 and/or main body 2 .

According to some preferred non-limiting embodiments , lid-spout assembly 3 , in particular spout 10 , lid 12 and tethering element 13 , is/are formed and/or molded, in particular simultaneously molded, from a polymer and preferentially in a single piece . In particular, lid-spout assembly 3 is directly molded on the package material about the designated pouring outlet , even more particular prior to the folding of the packaging material .

In more detail , spout 10 may comprise at least :

- a base frame 14 coupling and/or configured to couple spout 10 to main body 2 , in particular to second wall portion 5 , about the designated pour opening; and

- a collar 15 carrying and/or comprising pouring outlet 11 and being fixed to and protruding from base frame 14 .

In even more detail , collar 15 may extend along a central axis A and carries and/or comprises pouring outlet 11 at a first axial end of collar 15 . Furthermore , collar 15 may also comprise an inlet opening 16 for the pourable product positioned at a second axial end of collar 15 opposite to the first axial end .

Preferentially, collar 15 delimits and/or compri ses a flow channel 17 for the pourable product , in particular extending between inlet opening 16 and pouring outlet 11 . In use , collar 15 is configured such to receive the pourable product from the inner space through inlet opening 16 and such that the pourable product flows out of pouring outlet 11 .

According to some preferred non-limiting embodiments , collar 15 comprises a rim 18 delimiting pouring outlet 11 , and in particular a rim 19 opposite to rim 18 delimiting inlet opening 16 . In particular, rim 18 is arranged at the first axial end of collar 15 and preferentially rim 19 is arranged at the second axial end of collar 15 .

Preferentially, rim 18 radially protrudes inwards and/or towards central axis A. In other words , rim 18 restricts the cross-section of pouring outlet 11 .

Moreover, rim 18 , even more also rim 19 , may have a respective circular shape . Alternatively, rim 18 and/or the rim 19 could have a square and/or a rectangular and/or an elliptical and/or an oval shape .

According to some preferred non-limiting embodiments , collar 15 , in particular rim 18 , is designed such to allow a consumer to drink from spout 10 , in particular collar 15 . Moreover, collar 15 may have a tubular configuration . Preferentially, collar 15 has an annular cross- sectional profile with respect to a cross-sectional plane perpendicular to central axis A. In particular, the cross- sectional profile has a circular shape . Alternatively, the cross-sectional profile could have an oval or square or elliptical or rectangular shape .

Preferentially, collar 15 is shaped such to facilitate the outflow of the pourable product from collar 15 itsel f .

With particular reference to Figures 3 , 4 and 5 , base frame 14 comprises a first annular portion 23 and a second annular portion 24 axially displaced from one another with respect to central axis A and configured to interpose and/or interposing a portion of main body 2 , in particular second wall portion 5 , between one another . In particular, the portion of main body 2 , in particular of second wall portion 5 , is at the designated pour outlet .

According to some preferred non-limiting embodiments , lid 12 is controllable between at least :

- a closed position ( see Figures 5 and 6b ) in which lid 12 is configured to close and/or seal pouring outlet 11 , in particular for impeding an outflow of the pourable product out of pouring outlet 11 ; and

- an open position ( see Figure 2 ) in which lid 12 is configured to open and/or free pouring outlet 11 ( lid 11 is configured to be and/or is detached from pouring outlet 11 ) , in particular for allowing an outflow of the pourable product through pouring outlet 11 .

In more detail , l id 12 may be angularly moveable around a hinge axis B and lid 12 may be in a first angular position and in a second angular position with respect to hinge axis B when being controlled in respectively the closed position and the open position .

With particular reference to Figures 4 and 6a, lidspout assembly 3 also comprises a coupling membrane 25 , in particular an annular coupling membrane 25 , rupturably connecting lid 12 and collar 15 to one another . In particular, coupling member 25 is designed to irreversibly rupture the first-time lid 12 is controlled in the open position .

In particular, coupling membrane 25 is integral to lid 12 and collar 15 , in particular rim 18 , prior to the firsttime control of lid 12 in the open position .

Moreover, coupling membrane 25 may also be designed such to seal flow channel 17 ( and as a consequence inner space 7 ) from an outer environment prior to the first-time control of lid 12 in the open position .

In further detail , the coupling membrane 25 is connected to lid 12 along an annular contact portion .

Advantageously, lid-spout assembly 3 is arranged in an initial configuration ( see Figures 1 , 3 , 4 and 6a ) with coupling membrane 25 being intact ( i . e . coupling membrane 25 is not ruptured) . Furthermore , lid-spout assembly 3 is in a used configuration ( see Figures 2 , 5 , 6b ) with coupling membrane 25 being irreversibly ruptured .

In other words , prior to a first-time control of lid 12 in the open position, lid-spout as sembly 3 is in the initial configuration and after the first-time control of lid 12 in the open position, lid-spout assembly 3 is in the used configuration .

In particular, it should be noted that each lid- spout assembly 3 is immediately after the formation of the respective package 1 in the initial configuration so that the consumer receives the package 1 with lid-spout assembly 3 sealing the inner space of package 1 .

Moreover, lid 12 may be controllable between the closed position and the open position with lid-spout assembly 3 being in the used configuration .

In further detail , lid 12 may be in an initial position, in particular distinct from the closed position and the open position, with lid-spout assembly 3 being in the initial configuration . In other words , lid 12 may be in the initial position with coupling membrane 25 being intact .

In particular, lid 12 is designed so that after the first-time control of lid 12 from the initial position to the open position, lid 12 is repeatedly controllable between the open position and the closed position .

In particular, l id 12 is arranged in a third angular position, in particular distinct from the first angular position and the second angular position, with respect to hinge axis B when being positioned in the initial position .

With particular reference to Figures 1 to 6b, lid 12 comprises at least a main ( top ) wall 26 and a side wall 27 protruding from main wall 26 .

In particular, main wall 26 is configured to cover pouring outlet 11 and side wall 27 is configured to at least partially protrude into flow channel 17 , in particular with lid 12 being in the closed position . Even more particular, side wall 27 is also configured to interact with collar 15 , in particular rim 18 so as to laterally seal pouring outlet 15 with lid 12 being in the closed position .

Moreover, side wall 27 may have a tubular shape .

In even further detail , side wall 27 extends along a central axis C and comprises a first axial end connected to main wall 26 and a second axial end opposite to the first axial end, in particular the second axial end being a free and/or open end ( i . e . side wall 27 delimits an opening at the second axial end) . Alternatively, the second axial end of side wall 27 could be a free and closed end ( i . e . the second axial end could comprise a wall closing also the second axial end) . Moreover, main wall 26 may have a ( substantially) disclike shape .

In more detail , side wall 27 has an annular cross- sectional shape (with respect to a cross-section plane perpendicular to central axis A) .

Preferentially, an external dimension ( diameter ) of side wall 27 ( substantially) equals an internal dimension ( diameter ) of collar 15 , in particular relative to rim 18 .

Preferentially, lid 12 also comprises a gripping element 28 configured to allow the consumer to grip gripping element 28 itsel f and to facilitate controlling of lid 12 between the closed position and the open position and/or from the initial position to the open position .

Advantageously, lid 12 comprises an interaction ridge 29 configured to interact with ( at least a portion of ) collar 15 , in particular rim 18 , so as to determine a closing force with lid 12 being arranged in the closed position for retaining lid 12 in the closed position . In particular, interaction ridge 29 is designed together with the portion of collar 15 , in particular rim 18 , to define a locking assembly for releasably locking lid 12 in the closed position .

Preferentially, interaction ridge 29 and/or side wall 27 may also be configured to laterally close and/or seal in collaboration with collar 15 and/or rim 18 pouring outlet 11 .

In more detail , interaction ridge 29 is integral to side wall 27 and ( radially) protrudes from side wall 27 , in particular from an outer surface 30 of side wall 27 .

Moreover, interaction ridge 29 may have an annular shape .

Preferentially, interaction ridge 29 is axially displaced from the contact portion, in particular such that interaction ridge 29 is interposed between main wall 26 and the contact portion . In other words , the contact portion is axially closer to the second axial end of side wall 27 than interaction ridge 29 .

According to some preferred non-limiting embodiments , interaction ridge 29 is arranged such that the contact portion is axially closer to rim 18 than interaction ridge 29 , in particular with lid 12 being in the initial position and/or with lid-assembly 3 being in the initial configuration and/or prior to the first-time control of lid 12 in the open position .

In particular, interaction ridge 29 is axially displaced from rim 18 with lid 12 being in the initial position and/or lid-spout assembly 3 being in the initial configuration .

Moreover, interaction ridge 29 may be arranged and designed such that once lid-spout assembly 3 is in the used configuration and lid 12 is controlled in the closed position, interaction ridge 29 is placed within flow channel 17 .

Furthermore , side wall 27 may be designed such that a main portion of side wall 27 carrying interaction ridge 29 is arranged outside of flow channel 17 with lid 12 being arranged in the initial position and/or with lid-spout assembly 3 being in the initial configuration .

Moreover, side wall 27 may be designed such that a first portion 31 of side wall 27 is placed within flow channel 17 and a second portion 32 of side wall 27 is arranged outside of flow channel 17 with lid 12 being in the closed position .

Preferentially, first portion 31 comprises a part of outer surface 30 that faces an inner surface 33 of collar 15 delimiting flow channel 17 .

In further detail , interaction ridge 29 may comprise an interaction surface 34 , in particular facing main wall 26 . The interaction surface 34 may be designed to abut against an abutment surface 35 of collar 15 , in particular of rim 18 . Preferentially, abutment surface 35 faces inlet opening 16 and/or rim 19 .

According to some preferred non-limiting embodiments , tethering element 13 is connected to collar 15 . In particular, the connection between tethering element 13 and collar 15 defines hinge axis B .

Moreover, tethering element 13 may be bendable and/or flexible and/or deflectable .

Preferentially, tethering element 13 is configured to modi fy its shape in dependence on the position of lid 12 . Even more preferentially, tethering element 13 is controllable between at least a first configuration with lid 12 being in the closed position and a second configuration ( distinct from the first configuration) with lid 12 being in the open configuration .

With particular reference to Figures 1 to 5 , lid spoutassembly 3 further comprises a retaining group 38 configured to interact with tethering element 13 and/or lid 12 for ( at least ) temporarily retaining lid 12 in the open position . In particular, "temporarily retaining" means that the interaction is such that tethering element 13 and/or lid 12 can be disengaged from retaining group 38 again .

In particular, tethering element 13 is designed to be ( temporarily) coupled to retaining group 38 for retaining lid 12 in the open position .

Preferentially, lid spout-assembly 3 further comprises a connection base 39 fixed to and protruding, in particular laterally protruding away, from base frame 14 and carrying retaining group 38 .

Preferentially, retaining group 38 comprises a hook element 40 configured to interact with tethering element 13 for retaining lid 12 in the open position .

Preferentially, hook element 40 transversally, in particular perpendicularly, extends from connection base 39 .

According to some preferred non-limiting embodiments , tethering element 13 comprises a recess 41 configured to engage retaining group 38 , in particular hook element 40 , so as to ( at least ) temporarily fix lid 12 in the open position .

In use , the outpouring of the pourable product from package 1 requires to control lid 12 in the open position so as to open pouring outlet 11 . In particular, the first-time lid 12 is controlled in the open position, in particular from the initial position, lid-spout assembly 3 is controlled from the initial configuration to the used configuration and afterwards , it is possible to repeatedly control lid 12 between the closed position and the open position .

Each time lid 12 is controlled in the closed position, interaction ridge 29 interacts with collar 15 , in particular rim 18 , so as to lock lid 12 in the closed position by generating a closing force . This closing force must be overcome in order to move lid 12 again to the open position .

In particular, with lid 12 being in the closed position, interaction surface 34 abuts against abutment surface 35 .

The advantages of lid-spout assembly 3 and/or of package 1 according to the present invention will be clear from the foregoing description .

In particular, by providing for interaction ridge 29 it is possible to lock lid 12 in the closed position, thereby reducing or even avoiding any uncontrolled movement of lid 12 from the closed position to the open position .

Another advantage resides in that interaction ridge 29 in collaboration with collar 15 , in particular rim 18 , defines a seal laterally sealing pouring outlet 11 when lid 12 is arranged in the closed position . Preferentially, this allows to avoid and/or limit any ( substantial ) lateral leakages .

Clearly, changes may be made to lid-spout assembly 3 and/or package 1 as described herein without , however, departing from the scope of protection as defined in the accompanying claims .

Claims

1.- Lid-spout assembly (3) for a package (1) having a main body (2) comprising a designated pour opening and being filled with a pourable product; the lid-spout assembly (3) comprises at least:

- a spout (10) having a pouring outlet (11) ;

- a lid (12) configured to selectively close and open the pouring outlet (11) ; and

- a tethering element (13) tethering the lid (12) to the spout (10) and/or the main body (2) ; wherein the spout (10) comprises a base frame (14) coupling and/or configured to couple the spout (10) to the main body (2) about the designated pour opening; and

- a collar (15) carrying and/or comprising the pouring outlet (11) and being fixed to and protruding from the base frame ( 14 ) ; wherein the lid (12) is moveable at least in:

- a closed position in which the lid (12) closes and/or seals the pouring outlet (11) ; and

- an open position in which the lid (12) opens the pouring outlet (11) ; wherein the lid (12) comprises an interaction ridge (29) being configured to interact with the collar (15) so as to determine a closing force with the lid (12) being arranged in the closed position for retaining the lid (12) in the closed position.

2.- Lid-spout assembly according to claim 1, wherein the lid (12) comprises a side wall (27) ; wherein the interaction ridge (29) protrudes from the side wall (27 ) .

3.- Lid-spout assembly according to claim 2, wherein the collar (15) delimits a flow channel (17) and the side wall (27) is at least partially arranged outside of the flow channel (17) when the lid (12) is positioned in the closed position .

4.- Lid-spout assembly according to any one of the preceding claims, wherein the interaction ridge (29) has an annular shape.

5.- Lid-spout assembly according to any one of the preceding claims, wherein the collar (15) comprises a rim (18) delimiting the pouring outlet (11) ; wherein the interaction ridge (29) is configured to interact with the rim (18) so as to determine the closing force .

6.- Lid-spout assembly according to claim 5, wherein the rim (18) extends radially inwards.

7.- Lid-spout assembly according to any one of the preceding claims, and further comprising a rupturable coupling membrane (25) rupturably connecting the lid (12) and the collar (15) to one another.

8.- Lid-spout assembly according to claim 7, wherein the lid-spout assembly (3) is controllable from an initial configuration in which the rupturable coupling membrane (25) is intact to a used configuration in which the rupturable coupling membrane (25) has been irreversibly ruptured.

9.- Lid-spout assembly according to claim 8, wherein the lid (12) is in an initial position when the rupturable coupling membrane (25) is intact.

10.- Lid-spout assembly according to any one of claims 7 to 9, wherein the coupling membrane (25) is connected to the lid (12) along a contact portion; wherein the contact portion is axially displaced from the interaction ridge (29) .

11.- Lid-spout assembly according to claim 10, wherein 19 the contact portion is axially closer to the rim (18) than the interaction ridge (29) prior to the first-time control of the lid (12) in the open position.

12.- Lid-spout assembly according to any one of the preceding claims, wherein the collar (15) delimits a flow channel ( 17 ) ; wherein the interaction ridge (29) is arranged within the flow channel (17) with the lid (12) being in the closed position .

13.- Lid-spout assembly according to any one of the preceding claims, wherein the interaction ridge (29) comprises an interaction surface (34) designed to abut against an abutment surface (35) of the collar (15) .

14.- Package (1) comprising a main body (2) filled with a pourable product and at least one lid-spout assembly (3) according to any one of the preceding claims and coupled to the main body (2) .

15.- Package according to claim 13, wherein the main body (2) is formed from a multilayer composite packaging material .