Closure device for sterile liquid containers

Abstract

The present invention relates to a closure device for a sterile paper or paper-based container that can be used to contain a liquid product. In particular, the invention relates to a three-part closure device. The closure device has a spout that can be secured to the outer surface of the container, a cap having a resealable lid portion permanently connected to a retainer portion via a hinge, and a barrier disruption device that is movably attached to the spout and configured to disrupt the liquid-tight seal of the paper or paper-based container when the cap is twisted. The invention also relates to an assembly including the container and the closure device, as well as a method for providing the assembly.

Description

[Technical Field]

[0001] The present invention relates to a closure device for sterile paper or paper-based containers that can be used to store liquid products. In particular, the invention relates to a three-part closure device having a spout that can be secured to the exterior surface of the container, a cap having a resealable lid portion permanently connected to a retainer portion via a hinge, and a barrier disruption device movably attached to the spout and configured to disrupt the liquid-tight seal / barrier of the paper or paper-based container when the cap is twisted.

[0002] The present invention also relates to an assembly comprising a sterile container and said closure device, as well as a method for providing said assembly. In particular, the present invention relates to an assembly in which the container consists of paper or paper-based packaging, often called "cartons", commonly used for delivering liquid consumables, for example dairy products such as milk and fruit juices. [Background technology]

[0003] For cartons for sensitive foods such as milk and juice, it is important that the closure is completely sealable, clean and hygienic, yet functional in terms of easy opening and closing of the spout.

[0004] The containers and cartons are made, for example, from laminated packaging materials, which may include, for example, multi-layer paper or paperboard sheets laminated with one or more barrier layers for retaining liquids and / or preventing the transmission of air and flavor-spoilers through the paperboard. The barrier layers may, for example, comprise polyethylene or aluminum layers.

[0005] The spout of the closure may be attached to a location on the exterior surface of the carton, and the barrier on the carton may be positioned so that it can be broken by a barrier breaking element on the closure when the closure is first opened.

[0006] Patent document 1 discloses a closure device in which a barrier-breaking element / piercing element moves spirally toward the barrier, causing the barrier to fold away from the spout, allowing liquid to be poured from the carton into the spout.

[0007] Additionally, Patent Documents 2 and 3 disclose closure devices that have a rotatable cutting device at the spout, which forms a hole through a certain area of ​​the carton wall, allowing liquid in the carton to be poured through the spout.

[0008] A drawback of these closure devices known from the prior art is that after opening the spout opening for pouring liquid from the carton, the screw cap is removed from the closure device, increasing the risk that the user will misplace or lose the cap.

[0009] Closure devices are known in which the screw cap is retained in the closure device after opening the spout for pouring liquid from the carton, which prevents the user from misplacing or losing the lid when manipulating the carton, for example when pouring liquid from the carton.

[0010] Patent Document 4 discloses a stopper / hinge-type closure device for a packaging container with a long neck. The stopper includes a bridge for checking whether the screw-type stopper is open or not, and a hinge portion with an inner groove, which allows the stopper body / lid to be connected to a fixing ring for maintaining the set opening angle of the stopper body when opened, preventing the stopper body from sagging or shaking, and allowing for elastic opening and closing operations.

[0011] Patent Document 5 discloses a closure device including a cap including a ring axially held on a container portion defining the container opening, and two arcuate arms. Each of the arms is connected to the cap on the one hand and to the ring on the other hand by a film hinge and a bendable part. These arms allow the cap to tilt outward relative to the container so as to be released from the container opening, but the arms are thin and easily damaged or deformed. The complex structure of the closure device makes it extensive to manufacture.

[0012] However, such closures, in which the screw cap is retained by the closure after the closure is opened, are not suitable for sterile liquid-containing containers because the barrier of the carton cannot be opened by the closure. [Prior art documents] [Patent documents]

[0013] [Patent Document 1] U.S. Patent No. 6,851,576 [Patent Document 2] International Publication No. 2010 / 109155 [Patent Document 3] International Publication No. 2010 / 128302 [Patent Document 4] US Patent Application Publication No. 2012 / 0298666 [Patent Document 5] U.S. Patent No. 6,475,491 Summary of the Invention [Problem to be solved by the invention]

[0014] A first object of the present invention is to provide a closure device for sterile containers in which all parts are interlocked and / or interactively interlocked after the closure device is opened for the first time.

[0015] A second object of the present invention is to provide a closure that indicates to the consumer whether the closure has been previously opened, which may indicate that the product within the container may be contaminated.

[0016] A third object of the present invention is to provide a liquid-tight closure device that is easy to open and close and that is not susceptible to damage and / or deformation.

[0017] A fourth object of the present invention is to provide a closure device that is simple and economical to manufacture.

[0018] A fifth object of the present invention is to provide a closure device that, when in the open position, does not interfere with the dispensing operation.

[0019] A sixth object of the present invention is to provide a closure device that is easy to use due to improved opening and closing functionality compared to the prior art. [Means for solving the problem]

[0020] The present invention provides a fluid-tight hinged closure for sterile paper or paperboard-based containers that allows for turn / twist and flip opening and closing for consumer ease of use.

[0021] According to an exemplary embodiment, the present invention provides a closure device having three parts: a spout, a cap, and a barrier-breaking element. The spout is A longitudinal center axis defining an axial direction z, a circumferential direction c, and a radial direction r of the spout; an annular longitudinal neck portion extending along the axial direction z from a first axial end to a second axial end to define a dispensing opening, the annular longitudinal neck portion further having female first threads for interacting with the barrier-breaking element and male second threads for interacting with the cap; an annular flange portion for attaching / securing the closure device to the container, the annular flange portion extending outward from the second axial end of the neck portion in the radial direction r; The cap is an annular tamper-evident band retained around the neck portion; a holder rotatably held around the neck; a lid including an annular longitudinal skirt having an inner tapered portion configured to interact with the male second threads of the spout; a hinge portion having a rotation axis, the lid portion being configured to be rotatable about the rotation axis relative to the holding portion, the hinge portion permanently connecting the annular skirt of the lid portion to the holding portion along a predetermined circumferential range (circumferential length); a first breakable section, the tamper-evident band configured to be coupled to the retaining portion along the first breakable section prior to an initial opening of the closure device, the first breakable section configured to be broken upon the initial opening; a second breakable section, the lid configured to be coupled to the retainer along the second breakable section prior to the initial opening, the second breakable section configured to be broken upon the initial opening; the lid is configured to be movable between a first position in which the lid sealingly covers the dispensing opening, a second position in which the lid unsealingly covers the dispensing opening, and a third position in which the lid is at least partially positioned on a side of the dispensing opening; The barrier disruption element is a male third thread configured to interact with the female first thread of the spout; and and a barrier disruption portion configured to disrupt the barrier of the container upon initial opening.

[0022] The male second thread of the spout can occupy a region located between a first plane and a second plane in the axial direction z. The second plane may be located between the first plane and the second axial end of the spout. Furthermore, the pivot axis of the hinge portion may be located in a third plane located between the first plane and the second axial end of the neck portion.

[0023] When the lid is disposed in the first closed position, the cap has a central longitudinal axis corresponding to the central longitudinal axis of the spout. Thus, the cap may have an axial extent that includes the axial extent (axial length) of both the annular longitudinal skirt and the retainer, and extends between the first and second axial ends of the spout.

[0024] The hinge portion may be disposed at a so-called elevated position such that the axial range of the holding portion disposed below the hinge portion is 100% to 200% longer, preferably 100% to 150%, than the axial range of the holding portion disposed opposite the hinge portion in the circumferential direction.Furthermore, the holding portion may be dome-shaped below the hinge portion.

[0025] Such an elevated hinge portion allows for easy opening and closing of the lid in that the lid is easily positioned around the spout when operated by a consumer. If the hinge portion were not elevated, the spout could become an obstacle that prevents the lid from being positioned around the spout when operating the lid from the third position to the second position.

[0026] The third plane may be located between the first plane and the second plane, adjacent to the second plane, or between the second plane and the second axial end of the neck portion. Furthermore, the third plane of the pivot axis may be located parallel to the first plane P1 and the second plane P2.

[0027] The spout may further include first and second retaining rings / bead rings. The first bead ring may be positioned between the flange portion and the second bead ring and configured to retain an annular tamper-evident band. The second bead ring may be positioned between the first bead ring and the second screw and configured to retain the retaining portion.

[0028] The axial distance between the first bead ring and the flange portion may define a first annular recess in the neck portion for receiving and retaining a tamper-evident band of the cap.

[0029] The tamper-evident band may extend 360° annularly around the spout when the closure is assembled. Further, the first frangible section may also extend 360° annularly around the spout. Thus, after the cap is twisted a predetermined distance from the spout, the first tamper-evident band can be completely separated from the retaining portion.

[0030] The first annular recess may have a plurality of ribs / axially disposed shoulders extending between the flange portion of the spout and the first bead ring.

[0031] Additionally, the tamper-evident band may include a plurality of beaded sections that extend radially toward the spout when the closure is assembled. The beaded sections may be separated by grooves.

[0032] Thus, when the closure device is assembled, the grooves of the tamper-evident band abut against the ribs of the spout, thereby restricting movement of the tamper-evident band in the circumferential direction c when the cap is twisted and breaking the connecting bridge of the first breakable section when the closure device is opened for the first time.

[0033] In one aspect of the invention, the structure of the tamper-evident band and ribs may enable the lid portion to be twisted around the spout in the circumferential direction c a predetermined distance, for example 45°, in the range of 5° to 60° or 25° to 50° or 30°, before the first breakable section breaks and separates the tamper-evident band from the retaining portion.

[0034] The retainer can also be considered a second tamper-evident band having two functions: first, to retain the retainer of the cap around the spout after the closure is opened, and second, to indicate to the consumer whether the closure has been previously opened by providing tamper evidence. The retainer can be connected to the annular skirt of the lid by connecting a bridge located in the second breakable section prior to the first opening of the closure. The connecting bridge is broken when the closure is opened for the first time.

[0035] The second breakable section may extend along the circumferential direction c between a first end point and a second end point of the hinge section, so that when the connecting bridge of the second breakable section is broken, the lid section is connected only to the holding section via the hinge section.

[0036] The predetermined circumferential range of the hinge portion may be within any of the ranges of 10° to 100°, 20° to 80°, and 30° to 65°.

[0037] The second breakable section may have a circumferential range within any one of the ranges of 260° to 350°, 280° to 340°, and 295° to 330°.

[0038] The retaining portion may further include an annular flexible band disposed on an inner surface of the retaining portion, facing the spout when the closure is assembled. The flexible band may have a radial extent that bends downward, i.e., toward the tamper-evident band, before the cap is assembled to the spout of the closure. After the cap is assembled onto the spout, the flexible band bends in the other direction, i.e., upward, so that the flexible band abuts the second beaded ring of the spout. This allows the retaining portion to be freely oriented on the spout, and the lid portion, when in the open position, can be oriented away from the direction of liquid pouring from the spout, thereby providing an open position that does not interfere with pouring operations.

[0039] The male second thread of the spout may include a first section and a second section. The first section may extend in the circumferential direction c within any of the ranges of 250° to 340°, 280° to 330°, and 290° to 320°, and may have a helix angle of 0°. The second section may extend in the circumferential direction c within any of the ranges of 20° to 110°, 30° to 80°, 35° to 60°, and 40° to 50°, and may have a helix angle of 15° within any of the ranges of 5.0° to 20.0°, 6.0° to 9.0°, and 14.0° to 16.0°.

[0040] The male thread may further include a third section extending within any of the ranges of 250° to 340°, 280° to 330°, and 290° to 320° in the circumferential direction c, and may have a helix angle of 0°.

[0041] Furthermore, the male thread may include a fourth section extending in the circumferential direction c within any one of the ranges of 20° to 110°, 30° to 80°, 35° to 60°, and 40° to 50°, and may have a helix angle within any one of the ranges of 5.0° to 20.0°, 6.0° to 9.0°, and 14.0° to 16.0°, for example, 15°. The fourth section may be disposed parallel to and adjacent to the second section.

[0042] The inner inclined portion of the lid portion of the cap may have a circumferential range of, for example, 50° within any of the ranges of 20° to 70°, 30° to 60°, and 40° to 60°.

[0043] Furthermore, the inner inclined portion may have a helix angle within any of the ranges of 5.0° to 10.0°, 6.0° to 9.0°, and 7.0° to 8.0°.

[0044] According to another exemplary embodiment of the closure device, the first breakable section is configured to be broken / destroyed, i.e., its connecting bridge is broken, before the barrier breaking element breaks the barrier of the container upon initial opening of the closure device.

[0045] Additionally, a second breakable section may be configured to break after the barrier breaking element breaks the barrier of the container upon initial opening of the closure device.

[0046] The barrier-breaking element has breaking teeth separated by slits disposed between the teeth to allow liquid within the container to pass through the slits and enter the spout after the barrier of the container is broken. Each tooth may further have a tip disposed at a first axial end of the barrier-breaking element, the tip configured to interact with and break the barrier of the container when the closure 1 is first opened.

[0047] In another exemplary aspect of the present invention, the hinge portion may be disposed around the periphery of the annular skirt. Inside The inclined portion may further have a tangent center point located at a circumferential distance within any one of the ranges of 150° to 180°, 170° to 180°, and 175° to 180° from the tangent center point. In this specification, the inner inclined portion is also referred to as a female thread.

[0048] In yet another embodiment, the axial range of the retaining portion disposed below the hinge portion may be 100% to 200%, preferably 100% to 150%, longer than the axial range of the retaining portion disposed opposite the hinge portion.Furthermore, the retaining portion may be dome-shaped below the hinge portion.

[0049] The hinge portion may have a butterfly shape including a pair of spaced apart trapezoidal ends separated by a central portion, which may have any shape, such as a rectangular structure.

[0050] When the lid is flipped from the second position to the third position, the hinge deforms slightly, thereby securing the closure device in its third position. The butterfly hinge system may be adapted to bias the lid away from the circumferentially arranged retainers when the closure device is in the open position. Thus, the lid must be flipped back to the second position before the closure device can be rotated to the first position.

[0051] The term "flip-up" should be understood as the external force that needs to be applied to the lid in order to move it between the second and third positions.

[0052] In yet another aspect of the closure device, the second axial end of the spout may have a sealing tongue that extends toward the central axis of the spout, and the sealing tongue may be inclined in a direction toward the first axial end of the spout.

[0053] Further, the end wall of the lid portion of the cap may have a bore seal having a common central axis with the annular longitudinal skirt, both the bore seal and the skirt extending in the same longitudinal direction, and arranged such that the second axial end of the spout is located between the skirt and the bore seal when the lid portion is in the first position.

[0054] Furthermore, the radial extent of the sealing tongue may be less than or equal to the radial distance between the inner surface of the annular longitudinal skirt and the bore seal of the lid, providing a fluid-tight seal.

[0055] The bore seal may further have a longitudinal extent that gradually increases from a first position of the bore seal proximate the hinge portion to a second position of the bore seal distal to the hinge portion.

[0056] The bore seal may further help to guide and align the lid over the spout when the lid is brought from the open / third position to the second position.

[0057] The disclosed embodiments of the closure device may be configured for use with any liquid packaging container, i.e., a container comprising a multi-ply paper or paperboard sheet laminated with one or more barrier layers to retain liquid and / or prevent the transmission of air and flavor-spoilers through the paperboard. Such liquid packaging containers are commonly used, for example, for dispensing dairy products such as milk and juice. For example, closure devices for such applications are made from polyethylene, and the disclosed closure devices of the present invention are preferably made from this material.

[0058] The terms "initial opening of the closure device" or "prior to first opening of the closure device" should be interpreted as the position of the closure device after assembly, e.g., when neither the first nor the second breakable section has been broken.

[0059] The term "first position of the lid" should be interpreted as the position immediately before the second breakable section is broken, and therefore the position after the first breakable section has been broken and the barrier breaking element has broken the barrier and entered the carton.

[0060] The present invention also includes an assembly having a paper or paperboard based container and a closure device disclosed in any of the above-described embodiments secured thereto.

[0061] Additionally, the present invention includes a method for providing a closure device as disclosed in any of the above embodiments, said method comprising: providing a spout; providing a cap; providing a barrier disruption element; and mounting the cap and the barrier-breaking element onto the spout.

[0062] The steps of providing the spout, the cap and the barrier-breaking element may be performed by molding.

[0063] The above-mentioned preferred and / or optional features of each aspect may be used alone or in any suitable combination in other aspects of the invention.

[0064] To facilitate understanding of the present invention, the following drawings are attached: [Brief explanation of the drawings]

[0065] [Figure 1] 1 is a perspective view of a closure device according to the present invention, with the lid positioned between a second position and a third position. [Figure 2] 2 is a perspective view of the same closure device shown in FIG. 1 from a different angle, with the lid in a third position. [Figure 3A] FIG. 2 is a side view of the spout according to the first embodiment. [Figure 3B] FIG. 1 is a geometrical diagram showing the orientation of the annular longitudinal neck of the spout. [Figure 4] FIG. 10 is a side view of the cap of the closure device. [Figure 5] FIG. 10 is a side view of a barrier disruption element of the closure device. [Figure 6] FIG. 1 is a side view of a spout with a barrier-breaking element therein. [Figure 7] FIG. 2 is a cross-sectional side view of the cap. [Figure 8A] FIG. 1 is a cross-sectional side view of the closure device when assembled, before twisting the cap. [Figure 8B] FIG. 8B is a side view of the closure device shown in FIG. 8A. [Figure 8C] FIG. 8C is a bottom view of the closure device shown in FIGS. 8A and 8B. [Figure 9A] 10 is a side view of the closure device after the cap has been twisted to break the first frangible section. FIG. [Figure 9B] FIG. 9B is a bottom view of the closure device shown in FIG. 9A. [Figure 10] 1 is a perspective view of the closure device after twisting the cap until the barrier-breaking element breaks the barrier of the container. FIG. [Figure 11] 10 is a perspective view of the closure device after twisting the cap until the second breakable section is broken. FIG. [Figure 12A] FIG. 11 is a cross-sectional view of the closure device of FIG. [Figure 12B] 10 is a cross-sectional view of the closure device with the lid flipped up to an intermediate position between the second and third positions after twisting the cap until the barrier-breaking element breaks the barrier of the container. FIG. [Figure 12C] 10 is a cross-sectional view of the closure device with the lid flipped up to a third position to dispense liquid from the container. FIG. [Figure 13] FIG. 10 is a side view of a spout according to a second embodiment. [Figure 14] 14 is a perspective view of a closure device having a spout shown in FIG. 13. FIG. [Figure 15] 1 is a perspective view of a closure device showing an embodiment of a hinge portion. FIG. [Figure 16] FIG. 1 is a perspective view of a portion of a container / carton with a closure device secured thereto. DETAILED DESCRIPTION OF THE INVENTION

[0066] In the drawings, like reference numerals are used to denote like parts, elements or features unless otherwise expressly stated or implicitly understood from the context.

[0067] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiments and examples contained herein, and is intended to include modifications of the embodiments, including parts of the embodiments and combinations of elements of different embodiments, as falling within the scope of the following claims.

[0068] It will be understood that, for clarity, certain features of the invention are described above in the context of separate embodiments, and may also be provided in combination in a single embodiment. Conversely, various features of the invention are, for brevity, described in the context of a single embodiment, and may also be provided separately or in any suitable subcombination. In particular, it will be understood that features described in connection with one particular embodiment may be interchanged with features described in connection with other embodiments.

[0069] 1 shows an embodiment of a closure device 1 of the present invention. The closure device 1 has three parts: a spout 100, a cap 200 and a barrier-breaking element 700.

[0070] A first embodiment of the spout 100 is shown in FIGS. 1, 3A and 8, and a second embodiment of the spout is shown in FIGS.

[0071] 4 and 7 show cap 200 in detail, and FIG. 5 shows barrier-breaking element 700 in detail.

[0072] 1 and 3A, the spout 100 has an annular longitudinal neck 102 presenting an inner surface 124 and an outer surface 122. The neck 102 extends in an axial direction z, and the inner surface 124 is oriented along a central axis A oriented parallel to the axial direction z, as shown in FIG. L The inner surface 124 defines a through passage 120 having a central longitudinal axis A. L , which defines the walls of a flow channel 120. The flow channel 120 defines a first base axial end 104 at the base of the spout 100 and a second top axial end 106 at the top of the spout 100. The first axial end 104 defines a first base opening 116 of the flow channel, and the second top axial end defines a second top opening 118 that forms a dispensing opening 118 of the spout 100.

[0073] For convenience, in the following description, the term "upward" refers to the central axis A of the spout 100. L , which corresponds to the axial longitudinal direction z running from the first opening 116 to the second opening 118, and the term "downward" corresponds to the opposite direction. The terms "upper"-"lower", "top"-"bottom" and "up"-"down" refer to relative positions with respect to these directions, and the terms "in"-"out" refer to relative positions with respect to a direction perpendicular to these directions.

[0074] At the first base end 104, the spout 100 exhibits a radially outwardly extending annular flange 110 configured to be secured to a container, which may be in the form of a paper or paperboard based container / carton. (not shown) Barrier (not shown) may be welded to the outer surface of the carton at a location on the carton that allows it to be easily disrupted by the barrier disruption element 700.

[0075] The inner surface 124 and outer surface 122 of the spout 100 have threads, i.e., female first threads 107 and male second threads 108, respectively. The first threads 107 interact with third threads 708 located on the outer surface 712 of the barrier-breaking element 700, also see FIG. 5. The second threads 108 of the spout 100 interact with the inner beveled portion 322 of the lid portion 300 of the cap 200 when the closure 1 is opened or closed, also see FIG. 7.

[0076] The second thread 108 includes a first section 108a and a second section 108b. The first section 108a extends approximately 300° in the circumferential direction c and has a helix angle of 0°, as shown in FIG. 3B. The second section 108b extends approximately 60° in the circumferential direction c and has a helix angle of 15°.

[0077] Furthermore, the second screw 108 occupies a region 109 located between a first plane P1 and a second plane P2 in the axial direction z. The first plane P1 is located at the same height as the second bead ring 115. The second plane P2 is located between the first plane P1 and the second axial end 106.

[0078] As shown in FIG. 2, the cap 200 (Figure 1) The hinge portion 500 has a rotation axis A P The cover 300 has a rotation axis A P It allows the robot to rotate around the axis of rotation A. P teeth , th Plane P2 (Figure 3A) The third plane P3 is located at the same height as the first plane P1. P3 is shown in FIG.

[0079] The spout 100 may have a sealing tongue 112 disposed at the second axial end 106, as shown in Figure 8A. The sealing tongue 112 is aligned with the longitudinal central axis A of the spout 100 in the radial direction r. L , to enhance the sealing properties of the closure device 1.

[0080] The sealing tongue 112 may also be angled in a direction towards the first axial end of the spout.

[0081] The radial extent of the sealing tongue 112 may be less than or equal to the radial distance between the inner surface of the annular longitudinal skirt and the bore seal of the lid portion of the cap 200, as will be explained in more detail with respect to FIG.

[0082] The first screw 107 has a helix angle of about 7°, although the helix angle can be selected from 5° to 15°, and occupies the entire inner surface of the spout 100 in the axial direction.

[0083] The outer surface 122 of the spout is provided with two axially displaced bead rings 114, 115, referred to as first bead ring 114 and second bead ring 115. Both first bead ring 114 and second bead ring 115 are annular and extend radially from the spout 100.

[0084] The first bead ring 114 is positioned between the second bead ring 115 and the flange portion 110 of the spout 100, and is positioned at an axial distance that is the distance in the axial direction z from both the second bead ring 115 and the flange portion 110.

[0085] The axial distance between the first bead ring 114 and the flange portion 110 defines a first annular recess 126 in the neck portion 102 for receiving and retaining the first tamper-evident band 450 of the cap 200. The annular recess 126 has a plurality of ribs 129, shown as axially disposed shoulders, that extend between the flange portion 110 and the first bead ring 114.

[0086] Additionally, the axial distance between the first bead ring 114 and the second bead ring 115 defines a second annular recess 127 in the neck portion 102 for receiving and retaining the second tamper-evident band / retaining portion 400 of the cap.

[0087] 1 and 4, the cap 200 of the closure device 1 comprises a first tamper-evident band 450, a retaining portion 400, a lid portion 300, and a hinge portion 500 that permanently connects the lid portion 300 to the retaining portion 400.

[0088] The lid portion 300 is configured to seal the spout 100 when in the closed position to prevent fluid from passing therethrough. The lid portion 300 has an end wall 321 and an annular longitudinal skirt 320 extending from the periphery of the end wall 321. The longitudinal skirt 320 has one internal thread / internal bevel 322 configured to interact with the external threads 108 to movably couple the lid portion 300 of the cap 200 to the spout 100. (Figure 7) It has the following characteristics.

[0089] Annular skirt 320 has an outer surface 324 with a plurality of parallel spines 328 to enhance the consumer's grip.

[0090] The retaining portion 400 of the cap 200 is disposed circumferentially around the neck portion 102 between the first tamper-evident band 450 and the lid portion 300 when the lid portion 300 is in the closed position.

[0091] First tamper-evident band 450 is circumferentially held between first bead ring 114 and flange portion 110 of spout 100. Prior to opening closure device 1 for the first time, first tamper-evident band 450 is connected to retaining portion 400 by first breakable section 650 disposed between first tamper-evident band 450 and retaining portion 400. First breakable section 650 has a plurality of connecting bridges 651 that are broken upon opening closure device 1 for the first time to physically separate first tamper-evident band 450 and retaining portion 400.

[0092] Prior to the initial opening of the closure device 1, the retaining portion 400 is connected to the lid portion 300 via the hinge portion 500 and to the second breakable section 600 via the connecting bridge 601. The hinge portion 500 permanently connects the lid portion 300 to the retaining portion 400, but the connecting bridge 601 of the second breakable section 600 is broken upon the initial opening of the closure device 1 after the first breakable section 650 is broken. However, the hinge portion 500 is not broken upon opening of the closure device 1, and the lid portion 300 rotates around the pivot axis A of the hinge portion 500 after the second breakable section 600 is broken, as shown in Figures 1 and 2. P It is possible to rotate around the center.

[0093] When the closure device 1 is opened to allow the liquid in the carton to be poured, the lid portion 300 is rotated away from the dispensing opening 118, and the lid portion 300 is positioned on the side of the dispensing opening 118 of the spout 100. Thus, the lid portion 300 is rotated about the pivot axis A P The central axis A of the spout 100 is L 1 and moves / springs away from the nozzle 110, far enough away to allow nearly unrestricted discharge of the contents from the dispensing opening 118 of the spout 100, as shown in FIG.

[0094] The cap 200 is rotatable around the spout 100 by the retaining portion 400 and moves freely in the circumferential direction, thus allowing the consumer to move the lid portion 300 in the circumferential direction c so that it does not get in the way when pouring.

[0095] Figure 5 shows a detailed view of a barrier-breaking element 700 configured to break the barrier of a carton to which the closure device 1 is secured. The element 700 generally has an open cylindrical shape that is coaxially disposed within the spout 100, as shown in Figure 6. A barrier-breaking portion 702 having a plurality of teeth 709, each having a tip 711, is disposed at a first axial end 704 of the element 700. The tips 711 interact with and break the barrier of the carton when the closure device 1 is first opened.

[0096] As shown in Figure 5, element 700 has third threads 708 disposed on an outer surface 712 that interact with first threads 107 of spout 100 when closure device 1 is initially opened. Third threads 708 are disposed above barrier breaching portion 702 and occupy an area extending from second axial end 706 to barrier breaching portion 702. As shown in Figure 8A, before closure device 1 is assembled and initially opened, second axial end 706 of element 700 interlocks with second axial end 106 of spout 100. (Figure 3A) Alternatively, element 700 is located adjacent second axial end 106 and preferably abuts the sealing tongue of spout 100. Thus, when assembled, element 700 is completely surrounded by neck portion 102 of spout 100.

[0097] The first and third threads 107, 708 have a helix angle such that when the cap is twisted, and thus the closure device is initially opened, the element 700 is displaced / rotated in the axial direction z and the circumferential direction c towards the carton, i.e., away from the lid portion of the cap. The element 700 is rotated by interaction with the cap, which is illustrated in Figures 8C and 8D below. Figure 9B This will be explained in more detail with reference to the central axis A. L Rotation of element 700 about causes tip 711 to move through the barrier of the carton by breaking / cutting portions of the barrier.

[0098] Preferably, the tip 711 has a shape that allows it to cleanly cut open a large piece of the barrier by pressing against a weakened area of ​​the barrier without cutting into the carton barrier and causing the torn portion to enter the carton contents.

[0099] Similar barrier disruption elements are known in the art, inter alia, from US Pat. Nos. 5,623,999 and 5,723,925, which are incorporated herein by reference.

[0100] The weakened area of ​​the barrier may, for example, comprise a partial-depth notch, i.e., a partially cut area that maintains its barrier properties until broken. The partial-depth notch may be a circular half-cut that the tip 711 of the tooth-like barrier breaking portion 702 can interact with when the cap is first rotated. Thus, the tip 711 can ride over and push against the circular half-cut portion of the barrier, breaking it. The tip 711 can move a total of less than 360°, preferably about 300°, as it interacts with the circular half-cut portion, thereby creating an open-loop slit. The barrier breaking portion 702 then enters the carton and pushes the barrier inward, as shown in FIG. 5 of U.S. Patent No. 5,999,523 and FIG. 4 of U.S. Patent No. 5,999,523.

[0101] tip 711 The barrier rupture segments / teeth ensure that the barrier does not move circumferentially through 360° and that the barrier does not fall off and enter the carton contents. 709 is the tip 711 The barrier disruption element 700 may also be disposed within the spout 100 to separate the segments so that the barrier does not obstruct or impede the liquid during dispensing of the liquid from the carton. 709 may push the barrier inward.

[0102] 5, each tooth 709 is separated by a slit 710. Slits 710 are located between each tooth 709 and allow liquid within the carton to pass through slits 710 and into spout 100 after the carton's barrier is breached, and thus after barrier breaching portion 702 is positioned inside the carton. Slits 710 therefore ensure that liquid is not impeded by barrier breaching portion 702 during dispensing of the liquid from the carton.

[0103] 7 is a cross-sectional side view of the cap 200 before it is assembled to the spout 100. The lid 300 is open at its lower end and closed at its upper end by an end wall 321 which, at its outer periphery, presents an annular longitudinal skirt / tubular skirt 320 extending axially downwards, the annular longitudinal skirt 320 being aligned with the central axis A. C It is centered at and has a circular base.

[0104] The inner surface 326 of the annular skirt 320 has an inner beveled portion 322 having a first tangent center point that is approximately 170-180° from the tangent center point of the hinge portion 500. The inner beveled portion also has a subtend of approximately 30° in the circumferential direction c.

[0105] In the illustrated embodiment, the lid 300 has a central axis A within the longitudinal skirt 320. C An annular longitudinal bore seal 310 is provided extending axially downward from end wall 321 so as to be centered about the annular longitudinal skirt 320. Annular longitudinal bore seal 310 thus shares a common central axis with annular longitudinal skirt 320.

[0106] Although not shown, the bore seal 310 can have a longitudinal extent that gradually increases from a first position proximate the hinge 500 to a second position distal the hinge 500. The longitudinal extent of the bore seal can be adapted to avoid collision between the bore seal 310 and the spout sealing tongue when the lid 300 is manipulated from the third / open position towards the second position, as further described below with respect to Figures 10, 11 and 12A-12C.

[0107] In Figure 7, it can be seen that retainer 400 includes an annular flexible band 405 that extends downwardly at approximately 45° on an inner surface 404 of retainer 400 that faces spout 100 during assembly. Flexible band 405 is bent in the other direction to extend upwardly at approximately 45° during assembly of the closure device, as shown in Figure 8A.

[0108] 8A, flexible band 405 abuts against second bead ring 115 of spout 100 such that retainer 400 is held between first bead ring 114 and second bead ring 115. Instead of flexible band 405, retainer 400 has multiple flaps arranged in a circular fashion similar to the arrangement of the flexible band and therefore having the same function.

[0109] The first tamper-evident band 450 has a plurality of beads 455 that extend radially toward the spout when the closure is assembled. The beads 455 are separated by grooves 456, shown in Figure 7.

[0110] When the closure device 1 is assembled as shown in FIG. 8A, the groove 456 of the first tamper-evident band 450 (Figure 7) The spout is 100mm and the ribs are 129mm. (Figure 3A) and the cap 200 when the closure device 1 is first opened. (Figure 7) 8B, which shows the assembled closure device 1, the connecting bridge 651 of the first breakable section 600 is broken when the cap 200 is twisted for the first time. (Figure 7) Additionally, the configuration of the ribs 129 of the spout 100 allows the cap 200 to be twisted approximately 10 to 60 degrees before the first tamper-evident band 450 is restricted from moving, and therefore before the connecting bridge 651 of the first breakable section 650 is broken.

[0111] 8C shows a bottom view of the assembled closure device 1, thus looking at the closure device 1 from the base opening 116 toward the top opening 118, which is covered by the lid 300. The lid has two cams, referred to as first cam 340 and second cam 342, which are also shown in FIGS. 1, 2, 7, and 8A. The first cam 340 and second cam 342 are configured to interact with the barrier disruption element 700 when the closure device 1 is initially opened. The barrier disruption element shows first protrusion 740 and second protrusion 742 positioned to interact with the first cam 340 and second cam 342 when the closure device 1 is initially opened.

[0112] The first cam 340 and the second cam 342 are aligned with the central axis A of the lid 300. C (See FIG. 8) and the bore seal of the lid, and are separated by approximately 180° in the circumferential direction C.

[0113] Figure 9B As shown, the first cam 340 is positioned to abut against the first protrusion 740 and the second cam 342 is positioned to abut against the second protrusion 742, allowing the teeth 709 of the barrier disruption element 700 to exit the base opening 116.

[0114] However, when the closure device 1 is assembled, there is no interaction between the first cam 340 and the first protrusion 740 or the second cam 342 and the second protrusion 742 .

[0115] The aforementioned interaction between the spout rib 129 and the groove 456 of the first tamper-evident band 450 causes the connecting bridge 651 of the first breakable section 650 to break before the first cam 340 and the second cam 342 interact with the first protrusion 740 and the second protrusion 742. This is to assure the consumer that the closure 1 has not been opened unless the connecting bridge 651 of the first breakable section 650 has been broken.

[0116] 9A shows the closure device 1 after the connecting bridge 651 of the first breakable section 650 has been broken. The first breakable section 650 therefore provides a clean break between the first tamper-evident band 450 and the retainer 400 upon initial opening. Once broken, the first breakable section 650 provides evidence that the closure device 1 has been at least partially opened, and therefore provides so-called "tamper evidence."

[0117] After the connecting bridge 651 of the first breakable section 650 is broken, the first cam 340 and second cam 342 of the lid 300 engage with the first protrusion 740 and second protrusion 742 of the element 700, respectively. This is shown in Figure 9B, which shows the closure device 1 in a view similar to Figure 8C. By continuing to twist the cap to open the closure device, the first cam 340 and second cam 342 push against the first protrusion 740 and second protrusion 742, displacing the element 700 towards the carton in the axial direction z and the circumferential direction c. The axial lengths of the first cam 340 and second cam 342 and the circumferential direction c of the lid 300 determine the relative position of the element 700. Inside Due to the shape of the second thread 108 of the spout 100 interacting with the ramp 322, the element 700 is pushed in the circumferential direction c by a length corresponding to the length of the first section 108a of the second thread 108, and therefore by approximately 300°.

[0118] Figure 10 shows As shown in Figure 9B 1 shows the closure device 1 after the cap 200 has been twisted approximately 300° after the first cam 340 and second cam 342 have engaged the first protrusion 740 and second protrusion 742, thus causing the barrier breaking portion 702 to protrude from the first base opening of the spout 100, thereby breaking the barrier of the carton and placing the barrier breaking portion 702 within the carton. Further, it is shown that the connecting bridge of the first breakable section 650 has been broken, while the connecting bridge 601 of the second breakable section 600 remains intact. If the lid portion 300 were still connected to the retainer 400 in this position, the lid portion 300 would remain in the first position. Place It is referred to as something.

[0119] 11 shows the closure device 1 after continued twisting of the cap 200 to open the lid portion 300 of the closure device 1. Inside Due to the configuration of the second threads 108 of the spout 100 interacting with the ramp portion 322, the lid portion 300 of the cap is forced upward in the circumferential direction c and in the axial direction z by a length corresponding to the length of the second section 108b of the second threads 108, which is approximately 60°. Thus, the connecting bridge 601 of the second breakable section 600 is broken as the retaining portion 400 is retained by the second bead ring. The lid portion 300 is now rotated about the pivot axis A, as shown in FIGS. 1, 2, 12B and 12C, by the hinge portion 500 that secures the lid portion 300 to the retaining portion 400. P In this position, the lid 300 is ready to be flipped up. Place It is referred to as something.

[0120] The second breakable section 600 provides a clean break, upon initial opening, between the retaining portion 400 and the portion of the lid portion 300 that is not hinged to the retaining portion 400. Once broken, the breakable section 600 provides evidence that the closure device 1 has been fully opened, thereby providing tamper evidence.

[0121] 12A to 12C show the flip-up operation of the lid portion 300, and all show cross-sectional side views of the same closure device 1. FIG.

[0122] In Figure 12A, the cap 200 has already been twisted along the first section 108a of the second screw 108, and thus the barrier-breaking portion 702 of the barrier-breaking element 700 has been moved into the carton. The connecting bridge of the second breakable section 600 is therefore ready to be broken, and the shape of the closure device is the same as that shown in Figure 10. The lid 300 is therefore in the first position. Place To be placed.

[0123] In FIG. 12B, the lid portion 300 is separated from the holding portion 400 along the second breakable section, but is secured to the holding portion 400 by the hinge portion 500. Furthermore, the lid portion 300 is secured to the second position. Place and , the third position / feed position shown in FIG. 12C Place and 12B shows the lid in the same position as shown in FIG.

[0124] Figure 12C shows the third place Place The lid is shown in place, allowing the contents of the carton to be easily poured through the dispensing opening of the spout 100, as also shown in FIG.

[0125] 12A-12C, the retaining portion 400 has an increased axial extent at the point where the hinge portion 500 is fixed to the retaining portion 400 compared to the other side of the retaining portion 400 from which the contents of the container can be dispensed from the closure device 1. In this way, the hinge portion 500 is elevated, as also shown in FIG. 15. The axial extent of this retaining portion is approximately 120% longer than the axial extent of the retaining portion 400 located opposite the hinge portion 500.

[0126] Figure 13 shows a spout 100 according to a second embodiment of the present invention, and Figure 14 shows the spout 100 positioned within a closure device 1. The only difference between the first and second embodiments of the spout 100 is the shape of the threads, and therefore the remainder of the spout is as disclosed for the first embodiment, and therefore will not be repeated for the second embodiment.

[0127] The second thread 108 includes a first section 108a, a second section 108b, a third section 108c, and a fourth section 108d. The first section 108a extends approximately 330° in the circumferential direction c and has a helix angle of 0°. The second section 108b extends approximately 60° in the circumferential direction c and has a helix angle of approximately 15°. The third section 108c extends approximately 300° in the circumferential direction c and has a helix angle of 0°, and the fourth section 108d extends approximately 60° in the circumferential direction c and has a helix angle of approximately 15°.

[0128] The first and third sections 108a, 108c are arranged adjacent to and parallel to each other and offset in the axial direction z, allowing the inclined portion of the lid to interact with the first section 108a and / or the third section 108c of the second screw 108 when the cap is twisted.

[0129] The second section 108b and the fourth section 108d are arranged adjacent to and parallel to each other and offset in the axial direction z, allowing the sloped portion of the lid to interact with the second section 108b and / or the fourth section 108d when the cap is twisted.

[0130] The second screw 108 occupies a region 109 located between a first plane P1 and a second plane P2 in the axial direction z. The first plane P1 is located adjacent to and above the second bead ring 115. The second plane P2 is located between the first plane P1 and the second axial end 106.

[0131] As can be seen in FIG. 14, the assembly of the closure device is the same as that shown in the first embodiment of the spout in FIG.

[0132] 15 shows an example of a hinge portion 500 having a butterfly hinge system including a pair of spaced apart trapezoidal ends 502, 504 separated by a central portion 506, which may have a rectangular shape and curved longitudinal edges. The butterfly hinge system is adapted to bias the lid portion 300 away from the circumferentially arranged retaining portions 400 when the closure device 1 is in the open position, as shown in FIG.

[0133] 15 further illustrates the termination points 602, 604 of the breakable section 600 separated by the hinge portion 500. It can be seen that the circumferential extent of the retaining portion 400 below the hinge portion 500 exhibits a curved shape that extends upwardly towards the hinge portion 500, such that the retaining portion 400 is dome-shaped below the hinge portion 500. The dome-shaped region of the retaining portion 400 can have a circumferential extent in the circumferential direction c of approximately 30° to 100° around the entire circumference of the retaining portion 400.

[0134] However, the holding portion 400 may have other shapes than the dome-shaped structure shown below the hinge portion, and the pivot axis A P in a third plane P3 between the first plane P1 and the second axial end of the spout 100.

[0135] Generally, with reference to Figures 1 to 15, the lid 300 is resealably disposed on the spout 100. Inside The ramp 322 (see FIG. 7) is configured to interact with the external threads 108 of the spout 100 so that the lid 300 is aligned with the central axis A of the spout 100. L and can be rotated / twisted about its axis and twisted off of the spout 100 to bring the closure device 1 from a first / closed position (see FIG. 10) to a second position (see FIG. 11) in which the lid portion 300 non-sealingly covers the dispensing opening 118, and twisted onto the spout 100 to bring the closure device 1 from the second position to the first / closed position.

[0136] In the second position, the central axis A of the annular longitudinal skirt 320 of the lid 300 C is the longitudinal central axis A of the spout 100 L is different.

[0137] When the closure device 1 is moved from the first position / closed position to the second position, the lid 300 Inside The inclined portion 322 is rotated until it is released to a position where it does not interact with the male screw 108, and the rotation axis A of the hinge portion 500 is PThe lid portion 300 can be moved away from the spout 100 to a third position by flipping / pivoting the lid portion 300 about the center, allowing contents, e.g., liquid, to be dispensed through the dispensing opening 118 of the spout 100 (see Figures 2 and 12C).

[0138] Figure 16 shows an example of a carton 50 with a closure device 1, with the lid 300 in an open third position. As can be seen, the flange 110 of the spout 100 is secured to the outer surface of the carton 50, which can be done by hot air or ultrasonic welding, for example.

[0139] With reference to all the figures, the following sequence of steps allows the user to open the closure device 1 from the assembled position to the third / open position. a) providing the closing device 1 in a closed assembly position, b) The lid portion 300 of the cap 200 is First breakable section 650 is rotated / twisted approximately 45° in a counterclockwise direction with a helix angle of 0° until the connecting bridge 651 of 650 breaks; c) rotating the lid 300 an additional approximately 300° at a helix angle of 0° until the barrier disruption element 700 disrupts the barrier of the carton 50 and the barrier disruption portion 702 is permanently positioned within the carton 50, thereby rotating the lid 300 to the first position; Place Place d) Place the lid in the second position. Place Continuing to rotate approximately 60° towards the second section 108b of the external thread 108 and the inner ramp 322 causes the lid portion 300 to separate from the retaining portion 400 along the second breakable section 600, thus breaking the connecting bridge 601, and then e) The cover 300 is rotated around the axis A P The third place centered on Place Upon flipping up, the dispensing opening 118 of the spout 100 is opened to dispense liquid from the carton 50 .

[0140] Furthermore, the following steps allow the user to close the closure device 1 starting from the third / open position. d) Place the lid 300 back onto the spout 100 to the second position. Place Return, e) Rotate the cap 200 clockwise until the closure device 1 is liquid tight.

Claims

1. A closure device (1) attached to a closed sterile paper or paperboard-based container (50) in a position that allows easy destruction of the barrier of said container (50), comprising: The closure device (1) has three parts: a spout (100), a cap (200), and a barrier-breaking element (700); The spout (100) is A longitudinal central axis (A) defines the axial (z), circumferential (c) and radial (r) directions of the spout (100). Ｌ )and, an annular longitudinal neck portion (102) extending along said axial direction (z) from a first axial end (104) to a second axial end (106) and defining a dispensing opening (118), said annular longitudinal neck portion (102) further comprising female first threads (107) for interfacing with said barrier-breaking element (700) and male second threads (108) for interfacing with said cap (200); an annular flange portion (110) for attaching the closure device (1) to the container (50), the annular flange portion (110) extending outward in the radial direction (r) from the first axial end (104) of the annular longitudinal neck portion (102); The cap (200) a retaining portion (400) rotatably held around the annular longitudinal neck portion (102); a closure (300) including an annular longitudinal skirt (320) having an inner beveled portion (322) configured to interact with the male second threads (108) of the spout (100); Rotation axis (A Ｐ ) and the cover part (300) has the rotation axis (A) with respect to the holding part (400). Ｐ a hinge portion (500) configured to be rotatable about a center of the annular longitudinal skirt (320) of the lid portion (300), the hinge portion (500) permanently connecting the annular longitudinal skirt (320) of the lid portion (300) to the holding portion (400) along a predetermined circumferential range; the lid (300) is operable between a first position in which the lid (300) sealingly covers the supply opening (118), a second position in which the lid (300) non-sealingly covers the supply opening (118), and a third position in which the lid (300) is at least partially positioned to a side of the supply opening (118); The barrier disruption element (700) comprises: a male third thread (708) configured to interact with the female first thread (107) of the spout (100); a barrier disruption portion (702) configured to disrupt the barrier of the container (50) upon initial opening of the closure device (1); The cap (200) further comprises: an annular tamper-evident band (450) held around said annular longitudinal neck portion (102); a first breakable section (650), wherein the tamper-evident band (450) is configured to be coupled to the retaining portion (400) along the first breakable section (650) prior to the initial opening, and wherein the first breakable section (650) is configured to be broken upon the initial opening; a second breakable section (600) configured such that the lid portion (300) is coupled to the retaining portion (400) along the second breakable section (600) prior to the initial opening, the second breakable section (600) configured to be broken upon the initial opening; the first frangible section (650) is configured to be broken upon initial twisting of the lid (300) before the barrier breaking portion (702) breaks the barrier of the container (50); The closure device (1), wherein the second breakable section (600) is configured to be broken after the barrier breaking element (700) breaks the barrier of the container (50) during the initial opening.

2. The male second thread (108) of the spout (100) is oriented in the axial direction (z) in a first plane (P １ ) and the second plane (P ２ occupying a region (109) located between The second plane (P ２ ) is the first plane (P １ ) and said second axial end (106), The rotation axis (A) of the hinge part (500) Ｐ ) is the first plane (P １ ) and the second axial end (106) of the annular longitudinal neck portion (102). ３ 2. The closing device (1) according to claim 1, wherein the closing device (1) is arranged on a

3. The third plane (P ３ ) is the second plane (P ２ 3. The closure device (1) according to claim 2, wherein the closure device (1) is arranged at the same height as the first plane (P1), or adjacent to the second plane (P2), or between the first and second planes (P1, P2).

4. The spout (100) further comprises a first bead ring (114) and a second bead ring (115); the first bead ring (114) is disposed between the annular flange portion (110) and the second bead ring (115); The closure device (1) according to any one of claims 1 to 3, wherein the second bead ring (115) is arranged between the first bead ring (114) and the second screw (108).

5. A closure device (1) according to any one of claims 1 to 4, wherein the first breakable section (650) extends 360° annularly around the spout (100).

6. The closure device (1) according to any one of claims 1 to 5, wherein the second breakable section (600) extends along the circumferential direction (c) between a first end point (502) and a second end point (504) of the hinge portion (500).

7. The male second screw (108) includes a first section (108a) and a second section (108b); The first section (108a) extends in the circumferential direction (c) within a range of 250° to 340° and has a helix angle of 0°; The closure device (1) according to any one of claims 1 to 6, wherein the second section (108b) extends in the circumferential direction (c) within a range of 20° to 110° and has a helix angle within a range of 5.0° to 20.0°.

8. The closure device (1) according to any one of the preceding claims, wherein the inner slope (322) comprises a circumferential extent in the range of 20° to 70°.

9. The closure device (1) according to any one of claims 1 to 8, wherein the inner sloped portion (322) has a helix angle in the range of 5.0° to 15.0°.

10. the hinge portion (500) is disposed about the periphery of the annular longitudinal skirt (320) and has a tangent center point; The closure device (1) according to any one of claims 1 to 9, wherein the inner inclined portion (322) includes a tangent center point located at a circumferential distance (c) in the range of 150° to 180° from the tangent center point of the hinge portion (500).

11. The second axial end (106) of the spout (100) is aligned with the longitudinal central axis (A Ｌ The closure device (1) according to any one of claims 1 to 10, comprising a sealing tongue (112) extending towards the

12. 12. A closure device (1) according to claim 11, wherein the sealing tongue (112) is inclined in a direction towards the first axial end (104) of the spout (100).

13. 13. A closure device (1) according to any one of claims 1 to 12, wherein the end wall (321) of the lid (300) has an annular longitudinal bore seal (310) which has a common central axis with the annular longitudinal skirt (320), both the annular longitudinal bore seal and the annular longitudinal skirt extending in the same longitudinal direction, and the annular longitudinal bore seal (310) is arranged such that, when the lid (300) is in the first position, the second axial end (106) of the spout (100) is arranged between the annular longitudinal skirt (320) and the annular longitudinal bore seal (310).

14. An assembly comprising a paper or paperboard based container (50) and a closure device (1) according to any one of claims 1 to 13.

15. A method for providing a closure device according to any one of claims 1 to 13, said method comprising: Providing a spout (100); providing a cap (200); Providing a barrier disruption element (700); and mounting said cap (200) and said barrier-breaking element (700) onto said spout.

16. 16. The method of claim 15, wherein the steps of providing the spout (100), the cap (200), and the barrier-breaking element (700) are performed by molding.

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