Lid assembly for a package, lid spout group for a package, and package having a lid spout group

Abstract

A lid assembly (4) is described that includes a connecting ring (10), a lid (11), and a hinge element (12) that hinges the lid (11) to the connecting ring (10) and contacts a contact portion (13) of the lid (11). The lid (11) includes a cover wall (20) configured to cover the spout (9) and a side wall (21) protruding from the cover wall (20). The side wall (21) includes an end portion (22) connected to the cover wall (20) and a rim portion (23) facing the end portion (22). The rim portion (23) includes a rim surface (24) facing the connecting ring (10). The rim surface (24) includes a first portion (26), a second portion (27) connected to the first portion (26), and a third portion (28) connected to the second portion (27) and closer to the contact portion (13) than the first portion (26). The second portion (27) is transverse to the first portion (26) and the third portion (28).

Description

[Technical field]

[0001] The present invention relates to a lid assembly for a package, in particular a package having a body formed from a multi-layer packaging material and filled with a pourable product, in particular a pourable food product.

[0002] Advantageously, the present invention also relates to a lid spout group for a package, in particular a package having a body made from a multi-layer packaging material, filled with a pourable product, in particular a pourable food product, and provided with a lid and spout assembly.

[0003] Advantageously, the invention also relates to a package, in particular a package having a body formed from a multi-layer packaging material, filled with a pourable product, in particular a pourable food product, and provided with a lid assembly, in particular a lid spout assembly. [Background technology]

[0004] As is well known, many liquid or pourable food products, such as fruit juice, UHT (Ultra High Temperature Treated) milk, wine, tomato sauce, etc., are sold in packages, especially sealed packages, made from sterile packaging material.

[0005] A typical example is the parallelepiped-shaped pourable food package known as Tetra Brik Aseptic®, which is made by sealing and folding a laminated strip packaging material. This packaging material has a multi-layer structure with a base layer of carton and / or paper, covered on both sides with a layer of heat-sealable plastic material, e.g. polyethylene. In the case of aseptic packaging for long-term storage products, the packaging material comprises a layer of oxygen barrier material, e.g. aluminum foil, which is superimposed with a layer of heat-sealable plastic material and covered with another layer of heat-sealable plastic material to form the inner side of the package that ultimately contacts the food product.

[0006] Some known packages include a body formed from a multi-layer packaging material and a lid spout group disposed on the body, the lid spout group including a spout having a spout and a lid assembly coupled to the spout and configured to selectively close and open the spout.

[0007] The lid assembly includes a connecting ring disposed about a portion of the spout, a lid configured to selectively move between a closed position and an open position configured to close and open the spout, and a hinge element hingedly connecting the lid to the connecting ring, the lid being repeatedly movable between the closed and open positions.

[0008] Although known lid assemblies function satisfactorily, there is a need felt in the art to provide further improved lid assemblies.

[0009] In particular, there is a need in this field to provide correct positioning of the lid assembly in the closed position to avoid the possibility of the lid assembly becoming jammed. Summary of the Invention [Problem to be solved by the invention]

[0010] It is therefore an object of the present invention to provide an improved lid assembly for a package, in particular a package having a body formed from a multi-layer packaging material and filled with a pourable product, in particular a pourable food product, which is simple and low cost.

[0011] In particular, it is an object of the present invention to provide an improved lid assembly for packages, particularly those having a body formed from a multi-layer packaging material and filled with pourable products, particularly pourable food products, which provides improved positioning of the lid in the closed position and avoids jamming.

[0012] It is a further object of the present invention to provide an improved lid spout group for packages, in particular for packages having a body formed from a multi-layer packaging material and filled with a pourable product, more particularly a pourable food product, in a simple and cost-effective manner.

[0013] It is a further object of the present invention to provide an improved lid spout group for a package, in particular a package having a body formed from a multi-layer packaging material and filled with a pourable product, more particularly a pourable food product, in which the lid is easily placed in the closed position and jamming is avoided, in a simple and cost-effective manner.

[0014] A further object of the present invention is to provide a simple and low-cost package, in particular a package having a body formed from a multi-layer packaging material and filled with a pourable product, in particular a pourable food product, including an improved lid assembly, in particular a lid assembly which comes with an improved positioning of the lid in the closed position and makes it possible to avoid any jamming. [Means for solving the problem]

[0015] According to the present invention there is provided a lid assembly as set forth in claim 1.

[0016] Further advantageous embodiments of the lid assembly are defined in the claims which depend directly or indirectly on claim 1.

[0017] According to the present invention there is provided a lid spout group as claimed in claim 14.

[0018] According to the present invention there is provided a package as claimed in claim 15.

[0019] Non-limiting embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief description of the drawings]

[0020] [Figure 1]FIG. 1 is a schematic perspective view of a portion of a package with a lid assembly according to the present invention, with parts removed for clarity; [Diagram 2] FIG. 2 is a side view of the lid assembly of FIG. 1 with parts removed for clarity. [Diagram 3] FIG. 2 is an enlarged view of a portion of the lid assembly of FIG. 1 with parts removed for clarity. [Figure 4] FIG. 2 is an enlarged detail of the lid assembly of FIG. 1 with parts removed for clarity. [Diagram 5] FIG. 2 is a cross-sectional view showing details of the lid spout group of the package of FIG. 1 with parts removed for clarity. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Number 1 indicates a package (only partially shown to the extent necessary for understanding the invention) which, as a whole, comprises the following: - a body 2, in particular made of a multi-layer packaging material, which is filled with a pourable product, in particular a pourable food product; and a lid spout group 3 arranged on the body 2 and having at least a spout 8 (see FIG. 5 ) arranged on the body 2 and a lid assembly 4 connected to the spout 8 .

[0022] The multi-layer packaging material may comprise a layer of fibrous material, such as paper or paperboard, and at least two layers of heat-sealable plastic material, such as polyethylene, sandwiched between the layers of fibrous material, one of the two layers of heat-sealable plastic material defining the inner surface of the body 2 in contact with the pourable product.

[0023] Preferably, the multi-layer packaging material may comprise a layer of gas- and light-barrier material, such as an aluminum foil or an ethylene vinyl alcohol (EVOH) film, in particular arranged between one of the layers of heat-sealable plastic material and the layer of fibrous material. Preferably, the multi-layer packaging material may comprise a further layer of heat-sealable plastic material interposed between the layer of gas- and light-barrier material and the layer of fibrous material.

[0024] Preferably, each body 2 may be formed from a respective blank of multi-layer packaging material, which may more preferably be provided in the form of a web.

[0025] In particular, the web may be formed from a plurality of blanks arranged in series to form the web. More particularly, the web may be comprised of a plurality of repeating patterns arranged in series, each pattern defining a respective blank.

[0026] Preferably, the body 2 may be obtained by forming a tube from a multi-layer packaging material, sealing the tube longitudinally, filling the tube with a pourable product, sealing the tube transversely and cutting.

[0027] According to a preferred, non-limiting embodiment, each spout 8 may be applied onto each body 2 during or after molding, filling and sealing of each body 2 .

[0028] Alternatively, each spout 8 may be applied onto the multi-layer packaging material prior to placing the multi-layer packaging material within the multi-layer packaging material, or while advancing the multi-layer packaging material through a packaging machine for forming, filling and sealing the body 2 from the multi-layer packaging material.

[0029] According to some possible non-limiting embodiments, each spout 8 and each lid assembly 4 may be formed from a polymer, particularly by a respective molding process.

[0030] Preferably, each lid assembly 4 may be formed as a single piece, ie, the various components of the lid assembly 4 may be integrally connected to one another.

[0031] In particular, each spout 8 may be moulded into the multi-layer packaging material or body 2 .

[0032] Alternatively, each spout 8 may be glued and / or welded and / or ultrasonically bonded to the multi-layer packaging material or body 2 .

[0033] Preferably, the lid assembly 4 may be coupled to the spout 8 before or after applying the spout 8 onto the body 2 or onto the web of packaging material.

[0034] According to certain preferred, non-limiting embodiments, the spout 8 and lid assembly 4 are obtained from a polymeric material and are specifically molded.

[0035] With particular reference to FIG. 1, the body 2 may extend along a longitudinal axis A, a first lateral axis B and a second lateral axis.

[0036] Preferably, the body 2 may be of parallelepiped shape.

[0037] According to some preferred, non-limiting embodiments, the body 2 comprises a first wall (not shown, known) that is in particular transverse, more in particular perpendicular to the axis A, from which the body 2 extends along the axis A. Preferably, the first wall defines a support wall of the package 1, in particular the body 2, that is designed to come into contact with a support surface, such as, for example, a shelf, when in use, e.g. exposed in a point of sale, or when stored. In particular, when placed on a support surface, the first wall defines a bottom wall.

[0038] The body 2 may comprise one or more side walls 5 which are (fixedly) connected to the first wall portion and extend from the first wall portion, in particular substantially parallel to the axis A.

[0039] The body 2 may comprise a second wall 6 opposite the first wall and (fixedly) connected to at least a part of the side wall 5. In particular, the side wall 5 may be interposed between the first wall and the second wall 6. In particular, the second wall 6 may define a top wall when the first wall is placed on a support surface.

[0040] According to some non-limiting embodiments, the first wall and the second wall 6 may be parallel to each other.

[0041] According to an alternative, non-limiting embodiment not shown, the first wall and the second wall 6 may be inclined relative to each other.

[0042] The second wall 6 may carry a respective lid spout group 2 , in particular a respective spout 8 .

[0043] According to some preferred non-limiting embodiments, the package 1, in particular the body 2, may comprise an interior space configured to accommodate and / or contain a pourable product. In particular, the first wall, the side wall 5 and the second wall 6 define the interior space.

[0044] More specifically, and with particular reference to FIG. 5, the spout 8 comprises: - a spout 9 configured to allow the outflow of a pourable product from the package 1, in particular from the body 2; a collar 16 provided with and / or carrying a spout 9; The present invention may include at least the following.

[0045] Preferably, the spout 8 may comprise a base frame 7 configured to couple and / or to be coupled to the body 2 , in particular the second wall portion 6 .

[0046] More specifically, the collar 16 may extend along a longitudinal axis, in particular parallel to the axis A, and may carry and / or be provided with a pour spout 9 at a first axial end thereof and an inlet opening 17 for a pourable product at a second axial end thereof opposite to the first axial end. Preferably, the collar 16 may be integrally connected to the base frame 7.

[0047] In particular, the collar 16 may define and / or include a flow path 18 for the pourable product that extends between the inlet opening 17 and the spout 9. In use, the collar 16 receives the pourable product from the interior space through the inlet opening 17 and allows the flow of the pourable product out of the spout 9.

[0048] Preferably, the collar 16 may include an inner surface 30 that defines the flow passage 18. More preferably, the collar 16 may include an outer surface 31 opposite the inner surface 30.

[0049] With particular reference to FIGS. 1-4, the lid assembly 4 includes: a connecting ring 10 which can be arranged and / or is arranged around a part of the spout 8, in particular around the collar 16; - a lid 11 configured to selectively close and open the spout 9 of the spout 8; - a hinge element 12 for hingedly connecting the lid 11 to the connecting ring 10; At least the following is provided.

[0050] The hinge element 12 may be configured to allow movement of the lid 11 between a closed position (shown in Figures 1-3) in which the lid 11 is configured to close and / or cover the spout 9, in particular to prevent the flow of pourable product through the spout 9, and an open position (not shown) in which the lid 11 is configured to release the spout 9, in particular to allow the flow of pourable product through the spout 9.

[0051] In particular, the hinge element 12 may define a hinge axis E, in particular transverse to, and more particularly perpendicular to, the longitudinal axis of the collar 16, and the lid 11 may be angularly movable about the hinge axis E to move the lid 11 between a closed position and an open position.

[0052] 1, 2 and 4, the hinge element 12 contacts the lid 11 at a contact portion 13 and may contact the connecting ring 10 specifically at a contact portion 14 of the connecting ring 10.

[0053] Preferably, the hinge element 12 may be integrally connected to the lid 11 and the connecting ring 10 .

[0054] With particular reference to Figures 2 and 4, the hinge element 12 may include one or more coupling elements 15, and in a specific non-limiting embodiment, two coupling elements 15 are shown secured to the coupling ring 10 at coupling portion 14 and to the lid 11 at coupling portion 13.

[0055] Preferably, the lid assembly 11 may have a central axis F that is in particular perpendicular to the hinge axis E and / or parallel to the longitudinal axis of the collar 16 .

[0056] 1-4, the lid 11 includes a cover wall 20 configured to cover the spout 9, particularly when the lid 11 is in the closed position, and a side wall 21 protruding from the cover wall 20. In particular, the side wall 21 surrounds a portion of the collar 16 when the lid 11 is in the closed position.

[0057] More specifically, the side wall 21 comprises an end portion 22 connected, in particular integrally connected, to the cover wall 20 and a rim portion 23 opposite the end portion 22 .

[0058] Furthermore, the rim portion 23 comprises a rim surface 24 facing the connecting ring 10 , in particular an end surface 25 of the connecting ring 10 .

[0059] In particular, the profile of rim surface 24 defines and / or corresponds to the profile of rim portion 23. More particularly, the profile of rim surface 24 is selected to facilitate positioning of lid 11 in the closed position and to avoid jamming of lid 11.

[0060] More specifically, the rim surface 24 and the respective profile, particularly the end surface 25 and the respective profile, may be annular.

[0061] Preferably, the rim surface 24 and the end surface 25 may be substantially parallel to each other. In other words, the profile of the rim surface 24 and the profile of the end surface 25 are substantially parallel to each other. In particular, this is obtained by the fact that the profiles of the rim surface 24 and the end surface 25 are annular, the rim surface 24 being spaced apart from the end surface 25 but following the shape of the end surface 25.

[0062] More specifically, rim surface 24 and end surface 25 define a space disposed between rim surface 24 and end surface 25 .

[0063] More specifically, the rim surface 24 comprises a first portion 26, a second portion 27 connected to the first portion 26, and a third portion 28 connected to the second portion 27. The third portion 28 is closer to the contact portion 13 than the first portion 26.

[0064] In particular, the second portion 27 is interposed between the first portion 26 and the third portion 28 and connects the first portion 26 and the third portion 28 to each other.

[0065] In other words, the second portion 27 has a first end and a second end opposite the first end. The first end is connected to the first portion 26, and the second end is connected to the third portion 28.

[0066] Furthermore, the second portion 27 is disposed transversely, in particular perpendicularly, to the first portion 26 and the third portion 28 .

[0067] Preferably, the first portion 26 and the third portion 28 are parallel to each other.

[0068] Preferably, the rim surface 24 may comprise a fourth portion 29 connected to the third portion 28 and extending to the contact portion 13. In particular, the fourth portion 29 is transverse to the third portion 28.

[0069] More specifically, the first portion 26 lies in a first plane H1, the second portion 27 lies in a second plane H2, and the third portion 28 lies in a third plane H3.

[0070] Preferably, the second plane H2 is transverse, in particular perpendicular, to the first plane H1 and to the third plane H3.

[0071] Furthermore, the first plane H1 and the third plane H3 may be disposed parallel to each other with a gap therebetween.

[0072] According to certain preferred non-limiting embodiments, end face 25 may include a first section 35, a second section 36 connected to first section 35, and a third section 37 connected to second section 36 and closer to coupling section 14 than first section 35. Additionally, end face 25 may include a fourth section 38 connected to third section 37 and extending to coupling section 14.

[0073] In particular, the second section 36 may be arranged transversely, in particular perpendicularly, to the first section 35 and the third section 37 .

[0074] Preferably, the first section 35, the second section 36 and the third section 37 face the first portion 26, the second portion 27 and the third portion 28, respectively, and may be parallel to the first portion 26, the second portion 27 and the third portion 28. Furthermore, the fourth section 38 may be parallel to the fourth portion 29 and face the fourth portion 29.

[0075] According to some preferred non-limiting embodiments, the lid 11 may be symmetrical about a plane of symmetry S.

[0076] In particular, the plane of symmetry S may divide the rim surface 24 and the end surface 25 into respective first and second halves, each of which is disposed on one side of the sidewall 21.

[0077] More specifically, hinge elements 12 are substantially interposed between each first half and each second half.

[0078] Thus, each of the first portion 26, the second portion 27, the third portion 28 and especially the fourth portion 29 may comprise a respective first half and a second half.

[0079] More specifically, each first half of first portion 26 may be connected to a first half of second portion 27, which in turn may be connected to a first half of third portion 28, which in turn may be connected in particular to a first half of fourth portion 29.

[0080] Similarly, each second half of the first portion 26 may be connected to the second half of the second portion 27, which may be connected to the second half of the third portion 28, and in particular to the second half of the fourth portion 29.

[0081] Similarly, each of the first section 35, second section 36, third section 37 and especially fourth section 38 may comprise a respective first half and second half.

[0082] More specifically, each first half of first section 35 may be connected to a first half of second section 36, the first half of second section 36 may be connected to a first half of third section 37, and the first half of third section 37 may in particular be connected to the front half of fourth section 38.

[0083] As a similar example, each second half of the first section 35 may be connected to the second half of the second section 36, which in turn may be connected to the second half of the third section 37, which in turn may be connected to the second half of the fourth section 38, among others.

[0084] More specifically, the first half of the first portion 26 may extend between a respective first angular position and a respective second angular position, in particular with respect to the central axis F. Furthermore, the first half of the second portion 27 may extend between a respective second angular position and a respective third angular position (in particular with respect to the central axis F). In the illustrated specific embodiment, the second angular position and the third angular position are equal to each other, i.e., the third angular position corresponds to the second angular position, in particular since the second portion 27 extends parallel to the central axis F. The first half of the third portion 28 may extend between a respective third angular position and a respective fourth angular position (in particular with respect to the central axis F). The first angular position is different from the second angular position, and the fourth angular position is different from the third angular position. In other words, the first angular position and the fourth angular position are different from the second angular position and the third angular position, respectively.

[0085] Similarly, the second half of the first portion 26 may extend between a respective first angular position and a respective second angular position, in particular with respect to the central axis F. Furthermore, the second half of the second portion 27 may extend between a respective second angular position and a respective third angular position (in particular with respect to the central axis F). In the particular embodiment shown, the second angular position and the third angular position are equal to each other, i.e. the third angular position corresponds to the second angular position, in particular such that the second portion 27 extends parallel to the central axis F. The second half of the third portion 28 may extend between a respective third angular position and a respective fourth angular position (in particular with respect to the central axis F). The first angular position is different from the second angular position, and the fourth angular position is different from the third angular position. In other words, the first angular position and the fourth angular position are different from the second angular position and the third angular position, respectively.

[0086] Furthermore, the angular positions may extend from 0° facing the contact portion 13 to 180° facing the contact portion 13. In particular, the plane of symmetry S comprises a position with an angular position of 0° and a position with an angular position of 180°. More specifically, the positions of 0° and 180° are on the plane of symmetry S, while all other positions between the angular positions larger than 0° and smaller than 180° are not on the plane of symmetry S.

[0087] Preferably, the second angular position corresponds to an angular position less than or equal to 120°, preferably less than or equal to 100°, more particularly less than or equal to 90°. In this way, the risk of clogging can be further reduced, since the connection area between the first part 26 and the second part 27, i.e. the point where the first part 26 joins with the second part 27, is sufficiently far away from the contact part 13. Furthermore, this means that possible undesired contact between the connection area and the spout 8 occurs at an angle of the lid 11 relative to the hinge axis E, i.e. an angle at which the lid 11 has almost reached the closed position, already reducing the risk of such undesired contact.

[0088] According to certain preferred non-limiting embodiments, the lid assembly 4 may include a retention device to hold the lid assembly 4 coupled to the spout 8 when the lid assembly 4 is coupled to the spout 8. In particular, the retention device may be configured to limit axial movement of the coupling ring 10 along the central axis F.

[0089] More particularly, the spout 8 may comprise a retaining element 34, for example a continuous or discontinuous ring integral with and protruding from the collar 16. The retaining device may comprise a retaining element 34.

[0090] The connecting ring 10 may comprise a main ring 39 and a number of flap elements (not shown) protruding from an inner surface of the main ring 39 and specifically facing the outer surface 31 of the collar 16 and configured to interact with the retaining elements to limit axial movement of the connecting ring 10 when the lid assembly 4 is coupled to the spout 8.

[0091] In particular, each flap element may be coupled to a respective portion of the main ring 39. Preferably, each flap element may define a V-shape with its respective portion of the main ring 39.

[0092] Preferably, the retaining device may comprise a flap element.

[0093] According to certain preferred non-limiting embodiments, the lid assembly 4 may also include a breakable connecting bridge 40 connecting the connecting ring 10 and the lid 11 to one another. The connecting bridge 40 is designed to irreversibly break during the initial control of the lid 11 from the closed position to the open position.

[0094] In particular, the connecting bridge 40 may be breakably connected to the rim surface 24 or the end surface 25 .

[0095] More specifically, each connecting bridge 40 may be arranged in a respective seat 41 of the connecting ring 10 , in particular the main ring 39 .

[0096] Advantageously, the lid 11 may further comprise a sealing ring protruding away from the cover wall 20 and in particular connected to the cover wall 20 and configured to interact with the collar 16 so as to seal the spout 9 when the lid 11 is in the closed position.

[0097] In particular, the sealing ring may be configured to protrude at least partially into the flow passage 18 and engage an inner surface 30 of the collar 16 when the lid 11 is in the closed position.

[0098] According to some preferred non-limiting embodiments, the lid assembly 4 may also comprise a closure membrane 32 preferentially operably coupled to the lid 11, particularly by a coupling structure 33 secured to the lid 11 and the closure membrane 32, and configured to close and seal at least the flow passage 18 prior to a first movement of the lid 11 from the closed position to the open position. In particular, prior to the initial movement of the lid 11 from the closed position to the open position, the closure membrane 32 may be fused to the inner surface 30 of the collar 16, particularly rupturably fused to the inner surface 30 along the line of weakness 42.

[0099] Additionally, during the initial movement of the lid 11 from the closed to the open position, the closure membrane 32 breaks away from the inner surface 30 of the collar 16. In particular, the closure membrane 32 breaks along the line of weakness 42.

[0100] Thereafter, with the lid 11 now in the closed position, the closing membrane 32 may be placed within the flow channel 18 to close (but not seal) the flow channel 18.

[0101] In use, a user receives the package 1 with the lid 11 in the closed position so as to seal the spout 9 and prevent the pouring product from exiting through the spout 9.

[0102] To enable pouring from the spout 9, the lid 11 needs to be controlled from a closed position to an open position. The first time the lid 11 is controlled from a closed position to an open position, the connecting bridge 40, and in particular the closure membrane 32, irreversibly ruptures.

[0103] Thereafter, the lid 11 can again be controlled from the open position to the closed position.

[0104] The advantages of the lid assembly 4 and / or lid spout group 3 and / or package 1 according to the present invention will be apparent from the foregoing description.

[0105] In particular, the rim surface 24 having a first portion 26, a second portion 27, and a third portion 28 facilitates positioning of the lid 11 in the closed position and, further, avoids the possibility of the lid 11 becoming jammed if the user does not properly manipulate the lid 11.

[0106] Obviously, modifications may be made to the lid assembly 4 and / or the lid spout group 3 and / or the package 1 described herein without departing from the scope of protection defined in the appended claims.

Claims

1. A lid assembly (4) to be coupled to a spout of a package (1) to be filled with a pourable product, comprising: The lid assembly (4) comprises: a connecting ring (10) that can be placed around the spout (8); a lid (11) for selectively closing and opening the spout (8); a hinge element (12) that hinges the lid (11) to the connecting ring (10) and contacts a contact portion (13) of the lid (11); At least The lid (11) includes a cover wall (20) configured to cover the spout (9) and a side wall (21) protruding from the cover wall (20); The side wall (21) has an end (22) connected to the cover wall (20) and a rim portion (23) opposite the end (22); The rim portion (23) has a rim surface (24) facing the connecting ring (10), The rim surface (24) comprises a first portion (26), a second portion (27) connected to the first portion (26), and a third portion (28) connected to the second portion (27) and closer to the contact portion (13) than the first portion (26), The second portion (27) is transverse to the first portion (26) and the third portion (28). Lid assembly (4).

2. The second portion (27) is perpendicular to the first portion (26) and the third portion (28). The lid assembly of claim 1 .

3. said first portion (26) lies in a first plane (H1), said second portion (27) lies in a second plane (H2), and said third portion (28) lies in a third plane (H3); the second plane (H2) is transverse to the first plane (H1) and the third plane (H3); The lid assembly of claim 1 .

4. The second plane (H2) is perpendicular to the first plane (H1) and the third plane (H3); The lid assembly of claim 3 .

5. The first plane (H1) and the third plane (H3) are arranged parallel to each other with a gap therebetween. The lid assembly of claim 3 .

6. the rim surface (24) comprises a fourth portion (29) connected to the third portion (28) and extending to the contact portion (13); a fourth portion (29) transverse to said third portion (28); The lid assembly of claim 1 .

7. The connecting ring (10) has an end surface (25) facing the rim surface (24), The end surface (25) comprises a first portion (35), a second portion (36) connected to the first portion (35), and a third portion (37) connected to the second portion (36) and closer to the contact portion (14) of the connecting ring (10) than the first portion (35); The second section (36) is transverse to the first section (35) and the third section (37). The lid assembly of claim 1 .

8. The first section (35) faces the first portion (26) and is parallel to the first portion (26), the second section (36) faces the second portion (27) and is parallel to the second portion (27), and the third portion (37) faces the third portion (28) and is parallel to the third portion (28). The lid assembly of claim 7.

9. the connecting ring (10) comprises a main ring (39) and a plurality of flap elements protruding from an inner surface of the main ring (39) and interacting with retaining elements of the spout (8) to limit axial movement of the connecting ring (10) when the lid assembly (4) is coupled to the spout (8); The lid assembly of claim 1 .

10. The first portion (26) extends between a first angular position and a second angular position, the second portion (27) extends between a second angular position and a third angular position, and the third portion (28) extends between a third angular position and a fourth angular position. The lid assembly of claim 1 .

11. the second angular position is less than or equal to 120°; The lid assembly of claim 10.

12. a plurality of breakable connecting bridges (40) protruding from the connecting ring (10) and connected to the rim surface (24); The lid assembly of claim 1 .

13. The lid assembly (4) is made of a polymer. The lid assembly of claim 1 .

14. A lid spout group (3) comprising at least a spout (8) and a lid assembly (4) according to claim 1 coupled to said spout (8).

15. A package (1) filled with a pourable product, comprising a spout and a lid assembly (4) according to claim 1 coupled to said spout (8).

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