JP2023520293A - Spout for packaging, lid/spout assembly for packaging, and packaging with spout - Google Patents

Abstract

A spout 4, 4', 4'', 4''', 4'''' having at least an annular portion 10, the annular portion 10 comprising a pour outlet 12 and an inlet opening 11 for a pourable product. The spout, which holds and delimits the flow path 16, will now be described. The annulus 10 has an inner surface 17 that delimits a flow path 16 . The inner surface 17 has at least a main surface portion 25 and an inclined surface portion 24 . The main surface portion 25 and the inclined surface portion 24 are defined by the first line of intersection of the inner surface 17 and the first plane of intersection I resulting in at least one first one-dimensional curve F, the inner surface 17 and the second It is designed such that the second line of intersection of the plane of intersection I' results in at least one second one-dimensional curve F'. A first one-dimensional curve F and a second one-dimensional curve F' define a respective first portion F1 on the inclined surface portion 24 and a respective second portion F2 on the main surface portion 25, respectively. have. The first one-dimensional curve F is superimposable on the second one-dimensional curve F' such that at least the respective first portions F1 and the respective second portions F2 are superimposed.

Description

The present invention relates to a spout for a packaging filled with a pourable product, more particularly a food filled with a pourable food, in particular a packaging having a sealed body. .

Advantageously, the present invention relates to a packaging, in particular a packaging having a sealed body, which is filled with a pourable product, more particularly with a pourable food product. It also relates to a lid/spout assembly for

Advantageously, the present invention provides a package filled with a pourable product, more particularly a pourable food product, and having a spout, in particular a package having a sealed body. It also relates to materials.

As is known, many liquid or pourable foods such as fruit juices, ultra-high-temperature treated (UHT) milk, wine, tomato sauce, etc. are packaged in sterile packaging. It is sold in packaging made from the material, specifically sealed packaging.

A typical example is the parallelepiped-shaped packaging for pourable food products known as Tetra Brik Aseptic®, which seals the laminated strip packaging material, Created by folding. The 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-sealing plastic material, eg polyethylene. In the case of aseptic packaging for long-term shelf-life products, the packaging material also has a layer of oxygen barrier material, e.g. aluminum foil, which is superimposed on the layer of heat-sealing plastic material, which ultimately comes into contact with the food. covered with another layer of heat-sealable plastic material that forms the inner surface of the

Some of the known wrappers, in particular the respective closure bodies of wrappers formed from the wrapper, have designated pour openings by which the pourable product flows out of the wrapper. allowed to flow out. Typically, the designated pour opening is covered by an isolation membrane, which separates the interior of the packaging from the outside environment and permits the pourable product to flow out through the designated pour opening. The pourable product will be opened or removed or broken or cut or perforated before it first flows. It is also known to provide a lid/spout assembly having a spout positioned on the body about a designated pour opening. The spout has a spout to allow the pourable product to flow out of the packaging in a controlled manner, and the lid/spout assembly allows the spout to be selectively closed and opened. It has a lid that

The spout includes an annulus carrying a pour spout at a first axial end and an inlet opening located at a second axial end. The annulus has an inner surface that delimits a flow path extending between the inlet opening and the pour outlet.

The annular portion also includes a plurality of inner protrusions. It has been found that these internal protrusions, although advantageous with respect to the removal of the isolation membrane, can disturb the flow back of the pourable product into the wrapper after the pouring action is completed.

Accordingly, there is a felt need in the art to improve such spouts in order to eliminate such inconveniences.

It is therefore an object of the present invention to provide a packaging, in particular a packaging having a sealed body, which is filled with a pourable product, more particularly with a pourable food product. To provide an improved spout for a vehicle in a simple, straightforward and low cost manner.

Specifically, one object of the present invention is a packaging material, particularly a sealed body, filled with a pourable product, more particularly with a pourable food product. which reduces or even eliminates any backflow disturbance of the pourable product in a straightforward and low cost manner. It is to be.

Yet another object of the present invention is a packaging that is filled with a pourable product, more particularly a pourable food product, in particular a packaging that has a sealed body. To provide an improved lid/spout assembly for an air conditioner in a simple, straightforward and low cost manner.

Specifically, one object of the present invention is to provide a packaging material, particularly a sealed body, that is filled with a pourable product, more particularly with a pourable food product. An improved lid/spout assembly for a packaging material having: It should be provided in a simple, straightforward and low-cost manner.

Another object of the present invention is a packaging that is filled with a pourable product, and more particularly a packaging that is filled with a pourable food product, in particular a packaging having a sealed body. One object is to provide a packaging material with an improved spout in a simple, straightforward and low cost manner.

Specifically, one object of the present invention is a packaging material, particularly a sealed body, that is filled with a pourable product, more particularly with a pourable food product. and a spout that reduces or even eliminates any disturbance of the backflow of a pourable product in a simple, clear and low-cost manner.

According to the invention, a spout according to claim 1 is provided.

Further advantageous embodiments of the spout are defined in the respective independent claims 2-14.

According to the invention there is also provided a lid/spout assembly according to claim 15 .

According to the present invention there is also provided a packaging material according to claims 16 and 17.

Five non-limiting embodiments of the invention will now be described, by way of illustration, with reference to the accompanying drawings.

1 is a schematic perspective view of a portion of a packaging material having a spout according to a first embodiment of the invention, with parts removed for clarity; FIG. Figure 2 is an enlarged top view of a portion of the packaging material of Figure 1, with parts removed for clarity; 2 is a cross-sectional view of some details of the spout of FIG. 1 and a lid placed on the spout, with parts removed for clarity; FIG. 2 is a cross-sectional view of some details of the spout of FIG. 1, with parts removed for clarity; FIG. Figure 2 is an enlarged perspective view of the spout of Figure 1 with parts removed for clarity; Fig. 3 is an enlarged perspective view of a spout according to a second embodiment of the invention, with parts removed for clarity; Figure 4 is an enlarged perspective view of a spout according to a third embodiment of the invention, with parts removed for clarity; Figure 4 is an enlarged perspective view of a spout according to a fourth embodiment of the invention, with parts removed for clarity; FIG. 5 is an enlarged perspective view of a spout according to a fifth embodiment of the invention, with parts removed for clarity;

Number 1 designates the packaging as a whole (only partially shown to the extent necessary to understand the invention), the packaging comprising:
- a sealed body 2, in particular a sealed carton packaging, filled with a pourable product, in particular a pourable food product, in particular pourable; a sealed body 2 having a designated pour opening (not shown, known per se) configured to allow the product to flow out of the body 2; A sealed body 2 having a spout 4 arranged and/or positionable around a designated pour opening and a lid 5 connected and/or connectable to the spout 4. It has a lid/spout assembly 3 connected to it.

According to some preferred non-limiting embodiments, the body 2 is obtained from a packaging material having a multilayer structure (not shown, known per se), in particular a composite packaging material. be done.

Preferentially, the packaging material is provided in web form.

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

Preferentially, the packaging material comprises at least one layer of fibrous material, e.g. paper or cardboard, and at least two layers of heat-sealable plastics material, e.g. polyethylene, interposing the layers of fibrous material between each other. layer. One of these two layers of heat-sealable plastic material defines the inner surface of the body 2 that contacts the pourable product.

Preferably, the packaging material comprises a gas barrier and light barrier material, such as aluminum foil or ethylene glycol, specifically placed between one of the layers of heat-sealing plastic material and the layer of textile material. It also has a layer of vinyl alcohol (EVOH) film. Preferentially, but not necessarily, the packaging material also comprises another layer of heat-sealing plastic material interposed between the layer of gas and light barrier material and the layer of fibrous material.

According to one preferred non-limiting embodiment, the spout 4 is attached to the base packaging material 2 before, during or after forming, filling and sealing the body 2 .

Alternatively, the spout 4 may be provided prior to placing the packaging material inside a packaging machine for forming, filling and sealing the body 2 from the packaging material, or while the packaging material is advancing through the packaging machine. , may be attached to the packaging material.

Specifically, attachment of the spout 4 to the packaging material or body 2 is performed by a molding process and/or adhesive bonding and/or ultrasonic bonding.

Preferentially, the lid 5 is connected to the spout 4 before or after attaching the spout 4 to the body 2 or packaging material.

Referring specifically to FIG. 1, the body 2 extends along a longitudinal axis A, a first transverse axis B and a second transverse axis C. As shown in FIG. Specifically, the extension of the packaging material 2 along the longitudinal axis A is greater than the extension of the packaging material 2 along the first horizontal axis B and the second horizontal axis C.

Preferentially, the body 2 is parallelepiped-shaped.

According to some preferred non-limiting embodiments, the body 2 is in particular transverse, more particularly perpendicular to the longitudinal axis A (not shown, known per se). ) from which the body 2 extends along the longitudinal axis A. Preferably, the first wall portion defines a support surface for the packaging material 1, in particular the body 2, which support surface is exposed during use, e.g. in a sales point, or during storage. It is designed to be in contact with a support, for example a shelf, when it is being held. Specifically, the first wall portion defines a bottom wall portion when positioned on the support.

Preferably, the body 2 is (fixedly) connected to the first wall portion and extends from the first wall portion, in particular substantially parallel to the longitudinal axis A, on a plurality of sides. It also has side walls 6 .

Preferably, the body 2 also has a second wall portion 7 opposite the first wall portion and connected (fixedly) to at least some of the side walls 6 . Specifically, the side wall portion 6 is interposed between the first wall portion and the second wall portion 7 . Specifically, when placed on the support, the second wall portion 7 defines a top wall portion.

According to some non-limiting examples, the first wall portion and the second wall portion 7 may be parallel to each other.

According to a non-limiting alternative embodiment not shown, the first wall portion and the second wall portion 7 may be inclined with respect to each other.

According to some non-limiting embodiments, the second wall portion 7 holds and/or has designated pour openings.

According to some preferred non-limiting embodiments, the packaging 1, in particular the body 2, is configured to accommodate and/or has an interior space for accommodating a pourable product. Specifically, a first wall portion, a lateral wall portion 6 and a second wall portion 7 delimit the interior space.

According to one preferred, non-limiting embodiment, the packaging 1 has an isolation membrane (not shown, known per se) covering the designated pour opening. Specifically, the isolation membrane isolates the inner space from the external environment in the area of the designated pour opening, specifically at the designated pour opening. Preferentially, the separator comprises gas barrier and light barrier materials such as aluminum foil or ethylene vinyl alcohol (EVOH) film.

Specifically, during first use (for further details see further below), the isolation membrane is at least partially removed to allow the pourable product to flow out of the inner space and body 2 . be

According to one preferred non-limiting embodiment, the separating membrane is defined by a portion of the packaging material, in particular a layer of the packaging material which is different from the layer of textile material.

With particular reference to FIGS. 1-5, the spout 4 comprises at least an annular portion 10 which allows the pourable product to enter the annular portion 10, in particular from the inner space of the body 2. It has an inlet opening 11 configured to allow pouring and a pour outlet 12 configured to allow pourable product to flow out of the annulus 10 (and packaging 1).

Preferentially, the spout 4 has a base frame configured to couple and/or couple the spout 4 to the body 2, in particular to the second wall portion 7, around the designated pour opening. It also has a part 13 . Specifically, the base frame portion 13 holds the annular portion 10 .

More particularly, the annular portion 10 extends along a longitudinal (central) axis E, in particular parallel to the longitudinal axis A.

Preferentially, the outlet 12 is at a first axial end 14 of the annular portion 10 and the inlet opening 11 is at a second axial end of the annular portion 10 opposite the first axial end 14 . are arranged in the portion 15, respectively.

Specifically, the annulus 10 defines (and/or has) a channel 16 for the pourable product that extends between the inlet opening and the pour outlet 12 . In use, the annulus 10 is configured to receive the pourable product from the interior space through the inlet opening 11 and to flow the pourable product out of the pour outlet 12 .

Preferentially, the outlet 12 extends in a first plane H1 and the inlet opening 11 in a second plane H2 axially displaced from the first plane H1 with respect to the longitudinal axis E. . Specifically, the first plane H1 and the second plane H2 are perpendicular to the longitudinal axis E. FIG.

Preferentially, the annulus 10 also has an inner surface 17 that delimits the flow path 16 .

Even more preferentially, the annulus 10 also has an outer surface 18 facing the inner surface 17 .

Preferentially, the annular portion 10 is arranged at a first axial end 14 and a first rim 19 delimiting the pour outlet 12, and at a second axial end 15, the inlet opening. a second rim 20 delimiting 11;

Specifically, the annulus 10 is designed to allow the pourable product remaining in the channel 16 after the pouring action to flow back. A backflow of such pourable product occurs through the inlet opening 11 into the inner space of the body 2 .

Advantageously, the inner surface 17 has at least an inclined surface portion 24 , in particular this improves the backflow of the pourable product into the inner surface of the body 2 towards the inlet opening 11 . make it possible.

Preferentially, the inner surface 17 also has at least a main surface portion 25 , specifically connected to the inclined surface portion 24 .

Even more preferentially, the main surface portion 25 is closer to the spout 12 than the inclined surface portion 24 and/or the inclined surface portion 24 is closer to the inlet opening 11 than the main surface portion 25 .

Specifically, the inclined surface portion 24 is transverse to the main surface portion 25 .

Preferentially, the inclined surface portion 24 is inclined with respect to the longitudinal axis E, in other words the inclined surface portion 24 is transverse to the longitudinal axis E, but not perpendicular. Even more preferentially, the main surface portion 25 is parallel to the longitudinal axis E.

According to some preferred non-limiting embodiments, the annular portion 10 carries (and/or has) a main portion 26 carrying (and/or having) a main surface portion 25 and an inclined surface portion 24 . and an auxiliary portion 27 . Preferentially, the main part 26 and the auxiliary part 27 are connected to each other.

Specifically, the main portion 26 holds and/or has the first rim 19 .

According to certain non-limiting embodiments shown in FIGS. 2-5, the auxiliary portion 27 holds and/or comprises the second rim 20 .

Advantageously, with particular reference to FIGS. 4 and 5,
- the first line of intersection of the (imaginary) first intersection plane I containing the longitudinal axis E and intersecting the inner surface 17 provides at least one first one-dimensional curve F, specifically the (intersection Since the plane I intersects two different parts of the inner surface 17) two first one-dimensional curves F are obtained,
a second intersection of a (virtual) second plane of intersection I′ intersecting the inner surface 17 containing the longitudinal axis E and angularly displaced with respect to the first plane of intersection I about the longitudinal axis E; The line provides at least one second one-dimensional curve F', in particular two second one-dimensional curves F' (because the intersection plane I' intersects two different parts of the inner surface 17). be
- each first one-dimensional curve F and each second one-dimensional curve F' has a respective first portion F1 on the inclined surface portion 24 and a respective second portion F2 on the main surface portion 25; has
- at least the respective first portions F1 and the respective second portions F2, preferentially the first one-dimensional curve F and the second one-dimensional curve F', are in a first plane of intersection; Each first one-dimensional curve F follows each second one-dimensional curve F' so that it is superimposable (matched) regardless of the relative angular displacement between I and the second plane of intersection I'. so that it is superimposable on
A main surface portion 25 and an inclined surface portion 24 are designed.

When changing the relative angular displacement between the first plane of intersection I and the second plane of intersection I′, the respective first portions and the respective second portions are still always superimposable. Note that . In other words, regardless of the relative angular displacement between the first intersecting plane I and the second intersecting plane I', the first portions F1 and the second portions F2 follow the first one-dimensional curve After superimposing F and the second one-dimensional curve F' on each other, they always coincide.

According to this specification, the use of the term overlapping means that the at least two objects and/or parts that are to be superimposed do not necessarily coincide, whereas the use of the term overlapping , means that the objects match.

Preferentially, the inclined surface portion 24 has rotational symmetry with respect to the center point of the inclined surface portion 24 . With particular reference to FIGS. 2-5, the angled surface portion 24 can be rotated/deformed as a result of any rotation of the angled surface portion 24 around any angle. It has rotational symmetry such that Note that the angled surface portion 24 is rotationally symmetrical about any angle between 0° and 360°. Thus, any angular movement about an axis of rotation that intersects the central point (specifically the axis of rotation is parallel, more specifically coaxial with the longitudinal axis E) results in a tilt after rotation/deformation. The surface portion will have the same shape as the slanted surface portion 24 .

Preferentially, the inclined surface portion 24 delimits a space, in particular a frusto-conical space. Specifically, the (frustoconical) space tapers towards the entrance opening 11 .

Preferentially, the inclined surface portion 24 lies on the outer surface of the virtual truncated cone. Specifically, the virtual truncated cone tapers towards the entrance opening 11 .

Preferentially, the line of intersection of any cross-sectional plane perpendicular to the longitudinal axis E and intersecting the inclined surface portion 24 has a circular cross-sectional shape, in particular each circle having a defined diameter. Bring. Specifically, the defined diameter depends on the axial distance (along the longitudinal axis E) of the respective circle and inlet opening 11 . Even more specifically, the defined diameter decreases as the axial distance decreases.

Preferentially, the line of intersection of any cross-sectional plane perpendicular to longitudinal axis E and intersecting main surface portion 25 results in a circular cross-sectional shape.

According to some preferred non-limiting embodiments, the ramp surface portion 24 includes a first defining ring at a first axial end of the ramp surface portion 24 and a second axial end of the ramp surface portion 24 . and a second defining ring at one end, the second axial end being opposite the first axial end. Specifically, the first delimiting ring is closer to the outlet 12 than the second delimiting ring, and the second delimiting ring is closer to the inlet opening 11 than the first delimiting ring.

Preferentially, the first delimiting ring is larger than the second delimiting ring. Even more preferentially, the diameter of the first delimiting ring is greater than the diameter of the second delimiting ring.

According to some preferred non-limiting embodiments, the main surface portion 25 and the sloping surface portion 24 are connected to each other, especially at a first delimiting ring. Specifically, the main surface portion 25 switches continuously to the angled surface portion 24 . In other words, the diameter of the main surface portion 25 in the first delimiting ring is (substantially) equal to the diameter of the first delimiting ring.

According to some preferred non-limiting embodiments, main surface portion 25 delimits a cylindrical space. Specifically, the cylindrical and frusto-conical spaces are directly adjacent to each other (ie, the cylindrical and frusto-conical spaces have a common boundary surface).

According to some preferred non-limiting embodiments, the lid 5 is designed to at least-- in particular prevent the pourable product from flowing out of the pour spout 12. a closed configuration configured to cover and/or cover 12;
- an open configuration, in which the lid 5 is configured and/or disengaged from the spout 12, in particular to allow the pourable product to flow out through the spout 12; can be controlled between

According to some preferred non-limiting embodiments, the lid 5 includes a top wall 28 configured to cover the spout with the lid 5 controlled in a closed configuration, and a top wall 28 . and a side wall portion 29 projecting from and configured to at least partially surround the annular portion 10 with the lid portion 5 disposed in the closed configuration.

Preferentially, the top wall 28 and the side walls 29 delimit an interior space having a (substantially) cylindrical shape. Specifically, the internal space accommodates at least a portion of the annular portion 10 and the flow path 16 when the lid portion 5 is arranged in the closed configuration.

Advantageously, the lid/spout assembly 3 extends around at least a portion of the spout 4, particularly the annulus 10, such that the coupling ring 20 is inseparable from the spout 4, particularly the annulus 10. There is also a coupling ring 30 configured and/or arranged to be disposed around at least a portion of 10 .

Preferentially, the lid/spout assembly 3 also has a breakable coupling bridge 31 connecting the coupling ring 30 and the lid 5 to each other. The connecting bridge is designed to irreversibly break when controlling the lid 5 from the closed configuration to the open configuration.

Preferentially, the lid 5 is hinged to the coupling ring 27 and adapted for angular movement about the hinge axis. In particular, the hinge axis is preferably transverse, in particular perpendicular, to the longitudinal axis E and/or the longitudinal axis A.

Preferentially, the lid 5 is movable between at least a first angular position and a second angular position about a hinge axis by which the lid 5 is controlled into a closed configuration and an open configuration, respectively.

According to the illustrated non-limiting example, the spout 4 has a (polymer) cover member 33 designed to control and/or block the fluid connection between the inlet opening 11 and the spout 12 .

Preferentially, the cover member 33 is in an operating position (see FIGS. 2 and 3) in which the cover member 33 blocks the fluid connection between the inlet opening 11 and the pour outlet 12 and in which the cover member 33 closes the inlet opening 11 and a rest position (see FIGS. 4 and 5) that allows a fluid connection between the outlet 12 and the spout 12 .

Even more preferentially, with particular reference to Figures 2 and 3, the cover member 33 is positioned within the channel 16 when in the operating position. Specifically, the cover member 33 contacts the inner surface 17 , specifically at the second rim 20 .

Preferentially, the cover member 33 is (uniformly) fixed to the inner surface 17, specifically before the cover member 33 is first controlled from the working position to the rest position.

According to some preferred non-limiting embodiments, cover member 33 is reversibly controllable between an operating position and a rest position. Specifically, after being initially controlled from the operative position to the rest position, the cover member 33 only contacts the inner surface 17 and is not secured to the inner surface 17 .

Specifically, the packaging material 1 is delivered to the user with the cover member 33 in the operating position.

According to some preferred non-limiting embodiments, the cover member 33 specifically secures the closure element 14 to the inner surface 17 before initially controlling the cover member 33 from the operating position to the rest position. It has a connecting membrane 35 . Specifically, the bonding membrane 35 ensures sealing of any fluid connection between the inlet opening 11 and the pour outlet 12 .

Preferentially, the binding membrane 35 is configured to irreversibly break during the initial control of the cover member 35 from the working position to the rest position. This is accomplished by placing the cover member 33 back into its operative position after rupture of the binding membrane 35 so that there is contact between the cover member 33 and the inner surface 17, but the cover member 33 is not secured to the inner surface 17. means that

Specifically, the bonding film 35 has an annular shape.

According to some possible non-limiting examples, the cover member 33 is convex with respect to the second plane H2.

According to some non-limiting embodiments, the cover member 33 is welded and/or connected to the isolation membrane and/or at least partially defines the isolation membrane.

According to some non-limiting embodiments, the cover member 33 defines a portion of the isolation membrane and the one or more layers of packaging material define another portion of the isolation membrane.

According to some alternative embodiments, cover member 33 defines an isolation membrane.

According to some preferred non-limiting embodiments, any movement of the lid 5 will transfer motion to the cover member 33 so that, respectively, the cover member 33 is in the closed configuration with the lid 5 in the closed configuration. The cover member 33 is coupled to the lid 5 such that in the operating position, with the lid 5 in the open configuration, the cover member 33 is in the rest position.

According to some preferred non-limiting embodiments, the spout 4 also has a coupling member 34 connected to the cover member 33 and protruding therefrom and configured to couple the cover member 33 to the lid portion 5 . Specifically, the coupling member 33 is also connected to the lid 5 , specifically the upper wall 28 . Specifically, when the lid portion 5 is angularly moved about the hinge axis during use, the cover member 33 is also angularly moved about the hinge axis.

In use, the user receives the packaging 1 with the lids 5 each in the closed configuration. To allow the pourable product to flow out of the packaging 1, the user controls the lid 5 to the open configuration.

Controlling the lid 5 from the closed configuration to the open configuration also causes movement of the cover member 33 from its actuated and rest positions.

Specifically, when the cover member 33 is first moved from the operative position to the rest position, the binding membrane 35 irreversibly ruptures.

The presence of the inclined surface portion 24 ensures that any pourable product still present in the channel 16 flows back into the inner space of the body 2 .

Referring to FIG. 6, number 4' designates a second embodiment of a spout according to the invention, and since spout 4' is similar to spout 4, the following discussion will be limited to the differences between them. Wherever possible, the same reference numerals are used for identical or corresponding parts.

Specifically, spout 4' differs from spout 4 in that the line of intersection of any cross-sectional plane perpendicular to longitudinal axis E and intersecting inclined surface portion 24 results in an oval cross-sectional shape.

Specifically, spout 4' also differs from spout 4 in that the line of intersection of any cross-sectional plane perpendicular to longitudinal axis E and intersecting main surface portion 25 results in an oval cross-sectional shape.

Specifically, spout 4' further differs from spout 4 in that inclined surface portion 24 does not have rotational symmetry.

The operation of the packaging material 1 with the spout 4' is similar to the operation of the packaging material 1 with the spout 4, so reference is made to the description given above.

Referring to FIG. 7, number 4'' indicates a third embodiment of a spout according to the invention, spout 4'' being similar to spout 4, so the following description is limited to the differences between them. and where possible the same reference numerals are used for identical or corresponding parts.

Specifically, spout 4'' differs from spout 4 in that the line of intersection of any cross-sectional plane perpendicular to longitudinal axis E and intersecting inclined surface portion 24 results in an elliptical cross-sectional shape.

Specifically, spout 4'' also differs from spout 4 in that the line of intersection of any cross-sectional plane perpendicular to longitudinal axis E and intersecting main surface portion 25 results in an elliptical cross-sectional shape.

Specifically, spout 4 ″ further differs from spout 4 in that the inclined surface portion 24 has a rotational symmetry of an angle of 180°. Thus, if the angled surface portion 24 is rotated about the longitudinal axis E through an angle of 180°, the angled surface portion 24 after rotation will be identical to the angled surface portion 24 .

The operation of the packaging material 1 with the spout 4'' is similar to the operation of the packaging material 1 with the spout 4, so reference is made to the description given above.

Referring to FIG. 8, number 4''' designates a fourth embodiment of a spout according to the invention, spout 4''' is similar to spout 4, so the following description will focus on the differences between them. and wherever possible the same reference numerals are used for the same or corresponding parts.

Specifically, the spout 4''' is spouted in that the line of intersection of any cross-sectional plane perpendicular to the longitudinal axis E and intersecting the inclined surface portion 24 results in a rounded rectangular cross-sectional shape. different from 4.

Specifically, the spout 4''' is also spouted in that the line of intersection of any cross-sectional plane perpendicular to the longitudinal axis E and intersecting the main surface portion 25 results in a rounded rectangular cross-sectional shape. different from 4.

Specifically, spout 4''' further differs from spout 4 in that the inclined surface portion 24 has a rotational symmetry of an angle of 180[deg.]. Thus, if the angled surface portion 24 is rotated about the longitudinal axis E through an angle of 180°, the angled surface portion 24 after rotation will be identical to the angled surface portion 24 .

Since the operation of the packaging material 1 with the spout 4''' is similar to the operation of the packaging material 1 with the spout 4, reference is made to the description given above.

Referring to FIG. 9, number 4'''' designates a fifth embodiment of a spout according to the invention, spout 4'''' being similar to spout 4, so that the following description will focus on the differences between them. Differences are limited and wherever possible the same reference numerals are used for identical or corresponding parts.

Specifically, the spout 4'''' is defined in that the line of intersection of any cross-sectional plane perpendicular to the longitudinal axis E and intersecting the inclined surface portion 24 results in a rounded rectangular cross-sectional shape. Differs from spout 4.

Specifically, the spout 4'''' is also in that the line of intersection of any cross-sectional plane perpendicular to the longitudinal axis E and intersecting the main surface portion 25 results in a rounded rectangular cross-sectional shape. Differs from spout 4.

Specifically, spout 4'''' further differs from spout 4 in that the inclined surface portion 24 has a rotational symmetry of an angle of 90[deg.]. Thus, if the angled surface portion 24 is rotated about the longitudinal axis E through an angle of 90°, the angled surface portion 24 after rotation will be identical to the angled surface portion 24 .

Since the operation of the packaging material 1 with the spout 4'''' is similar to the operation of the packaging material 1 with the spout 4, reference is made to the description given above.

The advantages of the spout 4, 4', 4'', 4''', 4'''' and/or the lid/spout assembly 3 and/or the wrapping 1 according to the invention are evident from the foregoing description. deaf.

Specifically, by providing the slanted surface portion 24, after the pourable product has been poured out of the packaging 1, all the pourable product flows back into the inner space of the body 2 without being disturbed. is guaranteed.

Changes may be made to the spout 4 and/or lid/spout assembly 3 and/or wrapping 1 described herein without departing from the scope of protection defined in the appended claims. The good is clear.

According to a non-limiting example not shown, the inner surface 17 may have auxiliary surface portions delimiting a cylindrical space. Specifically, the auxiliary surface portion is positioned closer to the entrance opening 11 than the slanted surface portion 24 .

Preferentially, according to such an alternative embodiment, the inclined surface portion 24 is interposed between and connected to the main surface portion 25 and the auxiliary surface portion.

Preferentially, according to such an alternative embodiment, the auxiliary surface portion has a second rim 20 .

Claims (17)

Spouts (4, 4', 4'', 4''', 4''') for packaging (1) filled with pourable product, having a designated pour outlet. Thus, said spout (4) has at least an annulus (10), said annulus (10) extending along a longitudinal axis (E) and culminating in a first axial end (14). an outlet (12) holding an inlet opening (11) for a product that can be poured at the second axial end (11) and between said outlet (12) and said inlet opening (11); delimiting a channel (16) for said pourable product extending to
said annulus (10) comprising an inner surface (17) delimiting said channel (16);
said inner surface (17) having at least a main surface portion (25) and an inclined surface portion (24);
said main surface portion (25) and said inclined surface portion (24)
A first line of intersection of a first intersection plane (I) containing said longitudinal axis (E) and intersecting said inner surface (17) yields at least one first one-dimensional curve (F). be
a second plane comprising said longitudinal axis (E) and angularly displaced with respect to said first plane of intersection (I) about said longitudinal axis (E) and intersecting said inner surface (17); at least one second one-dimensional curve (F') is obtained by a second intersection line (I') of the intersection plane (I') of
Said first one-dimensional curve (F) and said second one-dimensional curve (F') have respective first portions (F1) on said inclined surface portion (24) and said main surface portion (25). ) and a respective second portion (F2) in
at least said respective first portions (F1) and said respective second portions (F2) are between said first intersection plane (I) and said second intersection plane (I') a spout designed such that said first one-dimensional curve (F) is superimposable on said second one-dimensional curve (F') so that they are superimposed irrespective of the relative angular displacement of . The first one-dimensional curve (F) and the second one-dimensional curve (F') are at relative angles between the first intersecting plane (I) and the second intersecting plane (I') A spout according to claim 1, wherein said first one-dimensional curve (F) is superimposable on said second one-dimensional curve (F') so that they are superimposed irrespective of displacement. A spout according to claim 1 or 2, wherein said inclined surface portion (24) is inclined with respect to said longitudinal axis (E). A spout according to any one of claims 1 to 3, wherein said main surface portion (25) is parallel to said longitudinal axis (E). A spout according to any one of claims 1 to 4, wherein said angularly inclined surface portion (24) is transverse to said main surface portion (25). the line of intersection of any cross-sectional plane perpendicular to said longitudinal axis (E) and intersecting said inclined surface portion (24) is circular, or elliptical, or rounded square, or rounded rectangular; or an oval cross-sectional shape. Said inclined surface portion (24) has a first defining ring at a first axial end of said inclined surface portion (24) itself and a second defining ring at a second axial end of said inclined surface portion (24) itself. a second defining ring;
said first delimiting ring being closer to said outlet (12) than said second delimiting ring, said second delimiting ring being closer to said inlet opening (11) than said first delimiting ring;
7. A spout according to any preceding claim, wherein said first defining ring is larger than said second defining ring. A spout according to any one of the preceding claims, wherein said inclined surface portion (24) delimits a space that tapers towards said inlet opening (11). A spout according to any one of claims 1 to 8, wherein said beveled surface portion (24) has rotational symmetry with respect to the center of said beveled surface portion (24). Any rotation of said beveled surface portion (24) through any angle or 90° or 180° angle of said beveled surface portion (24) may result in the beveled surface portion (24) after rotation turning said beveled surface 10. A spout according to claim 9, having a rotational symmetry identical to that of the portion (24). A spout according to any one of the preceding claims, wherein said main surface portion (25) is arranged closer to said spout (12) than said inclined surface portion (24). further comprising a cover member (33) configured to block a fluid connection between said inlet opening (11) and said spout (12);
A spout according to any one of claims 1 to 11, wherein said cover member (33) is fixed to said inner surface (17). said cover member (33) is in an operating position in which at least said cover member (33) blocks said fluid connection between said inlet opening (11) and said spout (12); movable between a rest position enabling said fluid connection between said inlet opening (11) and said outlet (12);
A spout according to claim 12, wherein said cover member (33) is secured to said inner surface (17) before said cover member (33) is initially controlled from said operative position to said non-operative position. 13. or, further comprising a connecting member (34) connected to the cover member (33) and adapted to connect the cover member (33) to the lid (5) of the packaging (1). 13. The spout according to 13. A spout (4, 4', 4'', 4''', 4'''') according to any one of claims 1 to 14 and for selectively opening and closing said spout (12). A lid/spout assembly (3) for packaging, comprising a lid (5) configured to: Packaging (1) filled with a pourable product and having at least one spout (4, 4', 4'', 4''', 4''') according to claims 1 to 14. . 17. Packaging material according to claim 16, further comprising a body (2) having said designated spout and formed from a multi-layer composite packaging material.

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