EP3416898A1 - Sealing device for a container neck - Google Patents

Sealing device for a container neck

Info

Publication number
EP3416898A1
EP3416898A1 EP17704024.3A EP17704024A EP3416898A1 EP 3416898 A1 EP3416898 A1 EP 3416898A1 EP 17704024 A EP17704024 A EP 17704024A EP 3416898 A1 EP3416898 A1 EP 3416898A1
Authority
EP
European Patent Office
Prior art keywords
membrane
neck
lip
skirt
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17704024.3A
Other languages
German (de)
French (fr)
Inventor
Michel Luzzato
Franck HANCARD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novembal USA Inc
Original Assignee
Novembal USA Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novembal USA Inc filed Critical Novembal USA Inc
Publication of EP3416898A1 publication Critical patent/EP3416898A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck

Definitions

  • the present invention relates to a closure device for a container neck.
  • the invention relates generally to plugs, typically made of plastic, which comprise a tubular skirt, designed to surround the neck of a container to be plugged and that their inner face is fixed removably to the face external of this neck: this attachment is for example made by screwing, as in FR 2 987 607, the plugs then being generally called screw caps, or this removable attachment can be made by jamming, as in FR 2 908 746, the plugs are then generally called snap caps or "snap".
  • the skirt is surmounted by a closing wall from the periphery of which the skirt extends axially: this closure wall extends across the container neck to close it when the skirt is fixed on the neck.
  • a lip extending from the closure wall is arranged inside the skirt: when the skirt is attached to the neck, the outer face of this lip, that is to say its face turned radially away from the central axis of the skirt, rests tightly against an inner face of the neck so as to seal the closure of the neck.
  • This sealing lip has its outer face which is generally bulged to ensure the most tight contact possible with the neck, the lip then being typically described as "olive lip”.
  • US 5,458,252 discloses a plug having a lip of this type, inside which is arranged a deformable membrane.
  • This membrane includes a central portion and a peripheral portion connecting the central portion to the lip.
  • the plug of US 5 458 252 finds particular application in the field of packaging for medical use: the membrane is designed to deform during an increase in pressure inside a container closed by the cap. More precisely, during such an increase in pressure, the central and peripheral portions of the membrane do not deform together, but successively: in a first phase, only the central portion deforms, by articulation of a flexible hinge provided for in FIG.
  • the object of the present invention is to improve the lip caps, for example olive lip, by strengthening the tightness of their interface with the neck of a container they close, even in case of circumstances damaging to this seal , especially in case of heating of the container neck and / or plug for sterilization or other purposes.
  • the invention relates to a closure device for a container neck, as defined in claim 1.
  • One of the basic ideas of the invention is to seek to "re-press" the lip against the inner face of the neck after the skirt has been attached to the neck and, more generally, after the closure device has been installed. on the neck, including, where appropriate, after circumstances such as heating of the closure device and / or the container neck for sterilization or other purposes, which are detrimental to the sealing performance of the interface between the neck and the closure device, in particular between the neck and the lip.
  • the invention provides for integrating a bistable membrane capable of deforming between two stable configurations, while remaining axially fixed, by its peripheral end, to the lip.
  • the entire membrane, except its peripheral end is disposed on an axial side of the geometric plane at which its peripheral end is fixedly attached to the lip
  • the entire membrane, except its peripheral end is disposed on the other axial side of this geometric plane: it is understood that passing the membrane from the first to the second configuration, the membrane is deformed tending to expand the lip transversely, that is to say say by tending to spread the lip radially outwards over the entire periphery of the lip.
  • the membrane is designed so that in the second configuration, this membrane continues to apply to the lip part of these expansion forces, which is to say that when the closure device is in place on the neck, the membrane, once passed in the second configuration, press the lip against the neck.
  • the membrane Due to its arrangement within the closure device according to the invention, the membrane is designed to pass from its first to its second configuration under the effect of an overpressure inside the container, the intensity of this overpressure obviously having to be sufficient to deform the membrane from its first configuration, intrinsically stable, to at least one deformed state from which the membrane tends to reach a stable state corresponding to its second configuration.
  • this overpressure inside the container is preferably obtained by inverting the bottom of the container at the end of the capping of a container having a bottom consisting of an invertible membrane, such as that described in the international application. published under the number WO 2015/192918.
  • the closure device according to the invention can be manufactured simply, economically and efficiently, in particular by molding plastic material either in one piece or in two pieces to be assembled together. , advantageously made of the same plastic material.
  • FIG. 1 is a perspective view of a first embodiment of a closure device according to the invention, shown in a state not yet assembled;
  • FIG. 1 is a longitudinal section of the closure device of Figure 1;
  • FIG. 3 is a view similar to Figure 2, showing the closure device of Figure 1 in the assembled state;
  • Figure 4 is a view similar to Figure 3, showing the closure device, in the assembled state, installed on a container neck;
  • FIG. 5 is a view similar to Figure 4, showing the closure device in a service configuration, subsequent to that shown in Figure 4;
  • FIG. 6 and 7 are views respectively similar to Figures 4 and 5, illustrating a second embodiment of a closure device according to the invention
  • FIGS. 8 to 1 1 are views respectively similar to Figures 2 to 5, illustrating a third embodiment of a closure device according to the invention.
  • FIGS. 12 to 14 are views respectively similar to Figures 3 to 5, illustrating a fourth embodiment of a closure device according to the invention.
  • FIGS. 1 to 5 show a closure device 1 adapted to be fixed by screwing, removably, onto a neck 2 of a container 3, shown in FIGS. 4 and 5, on which only part of this container 3 is visible.
  • the neck 2 is integral with the rest of the container 3, especially when the latter is a glass or plastic bottle, or adapted to be secured permanently to a wall of the container, at a opening through this wall.
  • the closure device 1 and the neck 2 have respective shapes extending around central longitudinal axes which are substantially merged, under the reference XX, when the closure device 1 is fixed on the neck 2 as in FIGS. 5.
  • the terms "upper” and “high” correspond to a direction generally parallel to the axis XX and from the main body of the container 3 to the free end of its neck 2, that is to say a direction directed towards the upper part of the figures, while the terms “lower” and “bottom” correspond to a direction of opposite direction.
  • the adjective “interior” designates a direction transverse to the axis XX which is oriented towards this axis
  • the adjective “outside” designates a direction transverse to the axis, which is oriented in opposite directions.
  • the neck 2 comprises a tubular body 4 with a circular base, of axis X-X. As shown in Figures 4 and 5, the body 4 defines, at its upper end, a rim 5 at which the liquid contained in the container 3 or, more generally, the contents of this container is intended to be discharged. On the outer face of the body 4, the neck 2 comprises a thread 6 projecting from an outer face 4A of the body 4.
  • the closure device 1 comprises two distinct components which, in order to dispose of the closure device in a functional state illustrated in FIG. 3, are fixedly joined to one another. These two components are a plug 10 and an insert 20.
  • the plug 10 when the closure device 1 is considered fixed on the neck 2, is open at its lower end and closed at its upper end by a closure wall January 1.
  • This closure wall 1 1 extends across or even perpendicular to the axis X-X and has a solid disc shape which is substantially centered on the axis X-X.
  • the plug 10 also comprises a tubular skirt 12, which is centered on the axis X-X and which extends axially downwards from the outer periphery of the closure wall January 1.
  • the skirt 12 thus laterally has an outer face 12A and an inner face 12B, which, in the example considered in the figures, are both circular, centered on the axis X-X.
  • the closure wall 1 1 extends both above the neck 2, being arranged in particular at axial plumb 5, and across this neck, being arranged in particular across the entire opening of this neck.
  • the skirt 12 externally surrounds the body 4 of the neck 2, its inner face 12B facing the outer face 4A of this body 4.
  • the skirt 12 is internally provided with removable fastening means to the neck 2, these fixing means being constituted, in the embodiment considered here, a net 13 which projects from the inner face 12B of the skirt and which is wound helically on this inner face 12B.
  • Fixing the closure device 1 on the neck 2 is to screw the thread 13 around the body 4 of the neck, the thread 13 engaging the thread 6 of the body 4, until the closure wall 1 1 is downwards against the rim 5, as shown in FIGS. 4 and 5.
  • the withdrawal of the closure device 1 from the collar 2 consists of unscrewing the thread 13 vis-à-vis the net 6, to the clear.
  • the plug 10 further comprises an annular lip 14, which extends axially downwardly from the closure wall 1 1, centrally on the axis XX, inside the skirt 12: when the closure device 1 is fixed on the neck 2 as in Figures 4 and 5, an outer face 14A of the lip 14 is pressed sealingly against an inner face 4B of the body 4 of the neck 2 to seal the closure of this neck by the capping device.
  • the outer face 14A of the lip 14 is bulged outwardly, in particular to increase the extent and / or the intensity of the contact between the lip 14 and the body 4 of the neck 2.
  • the inner face 12B of the skirt 12 is provided at its upper end with a projecting heel 15 which strangles locally the inner periphery of the skirt 12 relative to the remainder of the inner face 12B of the skirt.
  • this heel 15 tightly adjusts the outer periphery of the rim 5 of the neck 2, the neck thus found, in a way, pinched between the lip 14 and the heel 15.
  • the insert 20 comprises, in turn, a membrane 21 and an annular ring 22, which surrounds the periphery of the membrane 21.
  • the membrane 21 extends generally transversely to the axis XX, being arranged inside the skirt 12, and the central axis of the ring 22 is substantially coincident with the axis XX, so that, for convenience, this central axis of the ring 22 is also designated later under the reference XX.
  • the ring 22 is designed, in particular by its external dimensioning, to be engaged and fixed inside the lip 14 of the plug 10 so as to achieve the fixed assembly between the plug 10 and the insert 20.
  • the ring 22 is fitted, in particular force-fitted, inside the lip 14, so as to be stuck fixedly against the inner face 14B of the lip 14.
  • the inner face 14B of the lip 14 has a counterpane which contributes to maintaining the position of the ring 22 inside the lip 14 in the assembled state of the closure device 1.
  • the membrane 21 has two concentric parts, namely a central portion 23 and a peripheral portion 24, which, when the insert 20 is assembled to the stopper 10, are substantially centered on the axis XX.
  • the central portion 23 has a generally disc shape and the peripheral portion 24 has a generally annular shape.
  • the central portion 23 and the peripheral portion 24 are joined to each other by a flexible hinge 25 which runs around the axis XX: thus, the outer periphery of the central portion 23 is, over its entire extent, connected to the inner periphery of the peripheral portion 24 by the flexible hinge 25 which thus connects directly to each other these outer and inner peripheries.
  • the flexible hinge 25 makes it possible to locally bend the membrane 21, by relative articulation between its central portion 23 and its peripheral portion 24 around a geometric axis of articulation running around the X-X axis.
  • the peripheral portion 24 constitutes a peripheral end 21A of the membrane 21, forming a flexible hinge 26 joining the ring 22.
  • This flexible hinge 26 extends around the axis XX and allows the relative articulation between the peripheral portion 24 and the ring 22 around a geometric axis of articulation which runs around the axis XX.
  • this peripheral end 21 A and this ring 22 are fixed relative to each other in the direction of the axis XX, so that, in the assembled state of the closure device 1 as in Figure 3, the peripheral end 21 A of the membrane 21 is connected to the lip 14 of the cap 10 fixedly in the direction of the axis XX, by running over the entire inner periphery of the lip 14 at a geometrical plane P which is transverse, or, as here, perpendicular to the axis XX.
  • a geometrical plane P which is transverse, or, as here, perpendicular to the axis XX.
  • peripheral end 21 A of the diaphragm 21 constitutes the part of the flexible hinge 26, which remains fixed axially with respect to the lip 14, the remainder of this flexible hinge 26 being constituted by a peripheral band of the peripheral portion 24 of the membrane 21, this peripheral band connecting to each other the peripheral end 21 to the rest of the peripheral portion 24.
  • the membrane 21 is deformable between two stable configurations, namely a first configuration, shown in Figures 3 and 4, and a second configuration shown in Figure 5.
  • the whole of the membrane 21, except its peripheral end 21A is arranged on the lower side of the geometrical plane P, with its central part 23 which is further away axially from this geometrical plane P than its peripheral part 24.
  • the entire diaphragm 21, except its peripheral end 21A is disposed on the upper side of the geometrical plane P, with its central portion 23 which is further away axially from this geometrical plane P than its peripheral portion 24.
  • the peripheral end 21 A is axially fixed at the geometrical plane P, the axial positioning between this peripheral end 21A and the geometric plane P is unchanged when the membrane 21 is deformed between its first and second configurations.
  • the membrane 21 is designed so that, once in its second deformation configuration, the membrane maintains at least a portion of the aforementioned expansion forces, thereby firmly pressing the lip 14 against the neck 2 , which reinforces the sealing of the contact between the outer face 14A of the lip 14 and the inner face 4B of the body 4 of the neck 2 compared to the sealing of this contact when the membrane 21 is in its first configuration.
  • the membrane 21 occupying the second configuration thus applies to the lip 14 a force F 'which is transverse and centrifugal with respect to the axis XX, as indicated in FIG. 5.
  • the capacity of the membrane 21 to thus press the lip 14 against the neck 2 once this membrane has passed into the second configuration results from the structure and the arrangement of its central portion 23 , its peripheral portion 24 and its flexible hinge 25.
  • an overpressure is created inside the container 3: by its arrangement inside and across the neck 2, the membrane 21 is sensitive to a fluidic force F, shown in Figure 5, generated inside the container 3, in particular inside the neck 2, by the aforementioned overpressure.
  • the origin of this overpressure is not limiting of the invention, as long as the intensity of the overpressure is sufficient to deform the membrane 21 from its first configuration to its second configuration or at the very least, to an intermediate deformed state from which the membrane 21 will tend, by return to a stable state, to its second configuration rather than to its first configuration.
  • the above-mentioned overpressure results from the inversion of a wall, in particular of the bottom, of the container 3.
  • the central portion 23 of the membrane 21 is provided on its upper face with a spacer 27.
  • this spacer 27 has for example an annular shape, centered on the axis XX and circular base.
  • the spacer 27 is axially closer to the closure wall January 1.
  • the axial dimensioning of the spacer 27 is provided so that, when the membrane 21 reaches the second deformation configuration, the spacer 27 abuts axially against the closing wall January 1, thereby forcing the membrane 21 downwards, in the direction of the geometric plane P: this constraint advantageously strengthens the pressing action of the lip 14 against the neck 2 by the membrane 21 and, there-by, the sealing of the contact between the lip and the neck.
  • the manufacturing specificities of the closure device 1 described so far are not limiting of the invention.
  • a practical embodiment consists in producing, on the one hand, the plug 10 in one piece by molding a plastic material and, on the other hand, the insert 20 in one piece by molding.
  • a plastic material which is advantageously the same as that of the plug 10.
  • the plug 10 and / or the insert 20 are advantageously made of a semi-rigid plastic material, such as polypropylene or polyethylene, preferably shaping by molding.
  • the insert 20 that the ring 22, the central portion 23 and the peripheral portion 24 are molded together. More generally, the ring 22, the central portion 23 and the peripheral portion 24 are advantageously integral with each other.
  • this plug corresponds to pre-existing embodiments: thus, the capping device 1 can be obtained by assembling a pre-existing plug constituting the plug 10, with the insert 20.
  • FIGS. 6 and 7 show an alternative embodiment of the closure device 1, in the form of a closure device 101.
  • the closure device 101 comprises a plug 1 10 which is functionally or even, as here, structurally similar to the plug 10 of the closure device 1.
  • the cap 1 10 will not be described here further.
  • the closure device 101 also comprises an insert 120 including a membrane 121 and a ring 122.
  • the ring 122 is functionally, or, as here, structurally similar to the ring 22 of the insert 20 of the closure device 1.
  • the ring 122 will not be described here further.
  • the membrane 121 it is distinguished from the membrane 21 of the insert 20 by the fact that, rather than being made in the form of concentric parts such as the central portion 23 and the peripheral portion 24 of the membrane 21, this membrane 121 consists of a web 128. As clearly visible in FIGS. 6 and 7, this web 128 has, outside its peripheral end corresponding to the peripheral end 121 A of the membrane 121, a substantially homogeneous thickness, being understood that this thickness corresponds to the smallest dimension of the three dimensions of the web 128 and is delimited between the lower and upper faces of the web 128.
  • the sail conformation of the membrane 121 allows the latter to deform between the first and second configurations, by continuously bending the web 128, as shown in FIGS. 6 and 7.
  • the behavior of the membrane 121 is similar to that of the membrane 21, in particular in connection with the application to the membrane 121 of the fluidic force F and the application by the membrane 121 of the force F to the sealing lip of the plug 1 10.
  • FIGS. 8 to 11 show an alternative embodiment of the closure device 1, in the form of a closure device 201.
  • the closure device 201 comprises a plug 210 including a skirt 212 and a lip 214 which are functionally or even, as here, structurally similar to the skirt 12 and the lip 14 of the plug 10 of the closure device 1.
  • the plug 210 differs from the plug 10 in that, unlike the latter, the plug 210 is not, at its upper end, closed by a closure wall similar to the closure wall January 1. More specifically, the plug 210 comprises, at its upper end, a discoidal crown 21 1, which is centered on the axis XX and which is perforated in its central region, that is to say traversed from one side to the other by a hole 21 1 A.
  • the skirt 12 and the lip 214 extend axially downwards from the ring 21 1, similarly to the arrangement of the skirt 12 and the lip 14 from the relevant peripheral region of the closure wall 1 1 of the plug 10.
  • the ring 21 1 extends to the axial plumb of the rim 5 of the neck 2.
  • the plug 210 comprises a membrane 221 which, functionally, is similar to the membrane 21 of the plug 10, in the sense that this membrane 221 is deformable between the first and second configurations defined above.
  • the membrane 221 is structurally distinct from the membrane 21 in that its peripheral end 221 A is joined directly to the lip 214, the membrane 221 thus projecting from the inside 214B of the lip 214, as can be seen on Figures 8 to 1 1.
  • the membrane 221 is not associated with a ring, such as the ring 22 of the closure device 1, and is not integrated with an insert other than the plug, such as the insert 20 of the closure device 1: in contrast, the membrane 221 is integrated in the plug 210, without interposing between the membrane 221 and the lip 214 an intermediate piece.
  • the membrane 221 is advantageously integral with the lip 214, especially molded with this lip.
  • the hole 21 1 A of the ring 21 1 is found disposed at the axial plumb with the diaphragm 221, so that the closure of the plug 10 upwards is provided jointly by the ring 21 1 and the membrane 221, although, as in the embodiment shown in the figures, this ring 21 1 and this membrane 221 are not located at the same level along the axis XX.
  • the closure device 201 behaves similarly to the closure device 1, in particular in connection with the application on the membrane 221 of the fluidic force F to pass this membrane from its first deformation configuration to its second configuration deformation, as well as in connection with the application to the lip 214 of the force F 'by the membrane 221 when the latter occupies its second deformation configuration.
  • the cap 210 of the closure device 201 does not correspond to a pre-existing plug.
  • the manufacture, in particular by molding, of the plug 210 therefore requires specific provisions.
  • the latter comprises an insert, intended to close the hole 21 1 A of the ring 21 1: this insert thus constitutes a cap 230 of closure, which in Figure 8 , is shown disassembled plug 210 while, in Figures 9 to 1 1, this cap 230 is assembled to the plug 210.
  • This assembly is to fix the cap 230 to the hole 21 1 A of the ring 21 1, and by any appropriate means for example by welding, gluing, wedging, etc.
  • this cap can be made of very diverse materials: by way of non-limiting example, the cap 230 can be made of a multilayer complex, having reinforced capacity for protecting the contents of the container 3 against oxygen and / or ultraviolet, more generally having enhanced capacity for preserving the product contained in the container 3. Whatever its constituent material, the cap 230 may advantageously integrate, on its upper side, a marking, such as an advertisement.
  • FIG. 12 to 14 is shown an alternative embodiment of the closure device 101, in the form of a closure device 301.
  • the closure device 301 comprises a plug 310 which is functionally similar to the plug 1 10 of the closure device 101, in the sense that the plug 310 includes a closure wall 31 1, a skirt 312 and a lip 314 respectively similar to those of the cap 1 10.
  • the closure device 301 also comprises a membrane 321 which is similar to the membrane 121 of the closure device 101, with the structural difference that the membrane 321 is, at its peripheral end 321 A, joined directly to the lip 314, according to similar considerations to the junction of the membrane 221 to the lip 214. More specifically, as an alternative to the embodiment provided for the junction between the lip 214 and the membrane 221 of the closure device 201, the membrane 321 does not extend protruding from an inner face of the lip 314, but protruding from a lower end 314C of the lip 314, as clearly visible in Figure 12.
  • the closure device 301 includes a fluid 340 which, as shown in Figures 12 to 14, fills a free volume V310 of the cap 310.
  • This free volume V310 is delimited jointly by the closure wall 31 1 , the lip 314 and the membrane 321, being closed by them in a substantially hermetic manner.
  • the fluid 340 is compressed, by reducing the free volume V310, and once the membrane 321 is in the second deformation configuration as on 14, this fluid 340 remains compressed so that it forces the membrane 321 downwards.
  • this compressed fluid is, in a way, similar to that of the spacer 27 of the closure device 1, in the sense that, in constraining the membrane 321 downwards while the latter occupies its second deformation configuration, the force F 'applied by this membrane 321 to the lip 314 is increased in order to press this lip against the collar 2.
  • the fluid 340 is a gas. Furthermore, also as a non-limiting disposition, the filling of the free volume V310 by the fluid 340, such as the injection of gas, is carried out during the manufacture of the plug 310, in particular during its molding.
  • the presence, in the free volume V310 of the plug 310, of the fluid 340 tends to reinforce the seal at the interface between the closure device 301 and the neck 2 because the lip 314 s is more pressing on this neck than in the absence of such a fluid, provided that the fluid is present in a compressed state, that is to say with a pressure at least slightly above atmospheric pressure, and this independently of the deformation configuration of the membrane 321.
  • the plugs 10, 1, 10, 210 and / or 310 may be designed as plugs "snap"; in this case, their detachable fastening means at the neck 2, provided on the inner face of their skirt, comprise a clip, continuous or interrupted on the inner periphery of the skirt, this clip being adapted to be wedged, removably, under an external projecting boss of the body 4 of the neck 2;
  • the plugs 10, 1 10, 210 and / or 310 incorporate ruptible means witnesses of their first opening, for example in the form of an annular strip centered on the axis XX which is connected by frangible bridges to the lower end of their skirt and which, at the first opening of the cap, is retained permanently around the neck 2 by an ad hoc relief thereof; if necessary, during the manufacture of the cap, these frangible bridges are made by cutting the skirt and / or this band is partially folded towards the inside of the cap to form a stop which, during the first opening of the cap, cooperates, in particular by axial support, with the aforementioned relief of the neck; in all cases, the plug manufacturing operations relating to these bridges and / or this strip are advantageously carried out at least partially concomitant with the assembly of the closure device when the latter includes, in addition to its plug, a reported component, such as capping 1 and 101 including the plug 10, 1 10 and the insert 20, 120, or such as the capping device
  • the membrane comprises concentric parts, as for the membranes 21 and 221, more than two concentric parts may be provided in order to facilitate and / or amplify the deformation of this membrane, in particular as a function of the outside diameter of the membrane ; and or
  • the axial level, at which the peripheral end of the membrane is joined to either the ring or directly to the lip is not limited to those considered in the figures; in particular, for the case where the membrane belongs to an insert such as the insert 20 or 120, this membrane can extend projecting as well from an inner face of the corresponding ring, as for the membrane 21, that the the lower end of this ring, as for the membrane 121; and for the case where the membrane is joined directly to the lip of the plug as for the plugs 210 and 310, this membrane can extend projecting as well from an inner face of the lip, as for the membrane 221 which extends protruding from the inner face 214B of the lip 214, as from the lower end of the lip, as for the membrane 321 which protrudes from the lower end 314C of the lip 314.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

The invention relates to a sealing device (1) which includes a tubular skirt (12), suitable for being removably attached to a neck (2) of a container (3) in order to seal said neck, and an annular lip (14), arranged inside the skirt, and suitable for resting sealingly against an inner surface (4B) of the neck when the skirt is attached to the neck. The invention also includes a membrane (21), which is arranged inside the skirt, by extending transversely to the axis, in which one peripheral end (21 A) is connected to the lip in a stationary manner in the direction of the axis by forming a flexible hinge (26) providing a relative connection between the lip and the membrane, said flexible hinge running along the entire periphery of the lip, generally on a geometric plane (P) transverse to the axis, and which is deformable by connecting the flexible hinge between a first stable configuration, in which all of the membrane, except for the peripheral end thereof, is arranged on a first axial side of the geometric plane, rotated opposite a wide mouth (5) of the neck when the skirt is attached to said neck; and a second stable configuration, in which the entire membrane, except for the peripheral end thereof, is arranged on the opposite side of the geometric plane, the axial positioning between the peripheral end of the membrane and the geometric plane being unchanged when the membrane switches between the first and second configurations. In order to reinforce the seal of the interface between the sealing device and the neck, even when the circumstances might damage said seal, the membrane (21) is designed so that, when the skirt is attached to the neck and the lip is resting against the neck, the membrane switches from the first configuration to the second configuration under an overpressure inside the container, and then the membrane, once in the second configuration, presses the lip against the neck.

Description

Dispositif de bouchage pour un col de récipient  Clogging device for a container neck
La présente invention concerne un dispositif de bouchage pour un col de récipient. L'invention a trait, de manière générale, aux bouchons, typiquement réalisés en matière plastique, qui comprennent une jupe tubulaire, conçue pour entourer le col d'un récipient à boucher et pour que leur face intérieure se fixe de manière amovible à la face extérieure de ce col : cette fixation est par exemple réalisée par vissage, comme dans FR 2 987 607, les bouchons étant alors généralement appelés des bouchons vissés, ou bien cette fixation amovible peut être réalisée par coincement, comme dans FR 2 908 746, les bouchons étant alors généralement appelés des bouchons clipsés ou « snapés ». Dans tous les cas, la jupe est surmontée d'une paroi de fermeture depuis la périphérie de laquelle la jupe s'étend axialement : cette paroi de fermeture s'étend en travers du col de récipient pour l'obturer lorsque la jupe est fixée sur le col. De plus, une lèvre, qui s'étend depuis la paroi de fermeture, est agencée à l'intérieur de la jupe : lorsque la jupe est fixée au col, la face extérieure de cette lèvre, c'est-à-dire sa face tournée radialement à l'opposé de l'axe central de la jupe, s'appuie de manière étanche contre une face intérieure du col de manière à étancher l'obturation de ce col. Cette lèvre d'étanchéité a sa face extérieure qui est généralement renflée pour assurer un contact le plus étanche possible avec le col, la lèvre étant alors typiquement qualifiée de « lèvre olive ». The present invention relates to a closure device for a container neck. The invention relates generally to plugs, typically made of plastic, which comprise a tubular skirt, designed to surround the neck of a container to be plugged and that their inner face is fixed removably to the face external of this neck: this attachment is for example made by screwing, as in FR 2 987 607, the plugs then being generally called screw caps, or this removable attachment can be made by jamming, as in FR 2 908 746, the plugs are then generally called snap caps or "snap". In all cases, the skirt is surmounted by a closing wall from the periphery of which the skirt extends axially: this closure wall extends across the container neck to close it when the skirt is fixed on the neck. In addition, a lip extending from the closure wall is arranged inside the skirt: when the skirt is attached to the neck, the outer face of this lip, that is to say its face turned radially away from the central axis of the skirt, rests tightly against an inner face of the neck so as to seal the closure of the neck. This sealing lip has its outer face which is generally bulged to ensure the most tight contact possible with the neck, the lip then being typically described as "olive lip".
US 5 458 252 divulgue un bouchon ayant une lèvre de ce type, à l'intérieur de laquelle est agencée une membrane déformable. Cette membrane inclut une partie centrale, ainsi qu'une partie périphérique reliant la partie centrale à la lèvre. Le bouchon de US 5 458 252 trouve une application particulière dans le domaine des emballages à usage médical : la membrane est conçue pour se déformer lors d'une augmentation de la pression à l'intérieur d'un récipient fermé par le bouchon. Plus précisément, lors d'une telle augmentation de pression, les parties centrale et périphérique de la membrane ne se déforment pas conjointement, mais successivement : dans une première phase, seule la partie centrale se déforme, par articulation d'une charnière souple prévue à la jonction entre les parties centrale et périphérique, ce qui tend à renforcer l'étanchéité de la fermeture du récipient résultant du fait que la partie centrale passe d'un côté à l'autre de la partie périphérique qui reste stationnaire par rapport à la lèvre ; puis, dans une seconde phase, comme la partie centrale est complètement déformée, c'est la partie périphérique qui se déforme, par articulation d'une charnière souple qui est prévue à la jonction entre l'extrémité périphérique de la partie périphérique et la lèvre d'étanchéité et dont la position axiale est inchangée pendant toute la déformation de la membrane, ce qui conduit à écarter la lèvre vis-à-vis du récipient et donc à rompre l'étanchéité de la fermeture du récipient par le bouchon, notamment pour éviter la rupture du récipient par explosion. Ainsi, l'enseignement de US 5 458 252 consiste à ce que, en cas de surpression interne du récipient, la déformation de l'intégralité de sa membrane entre deux configurations stables doit aboutir à la neutralisation de l'effet de fermeture étanche procuré par la lèvre. US 5,458,252 discloses a plug having a lip of this type, inside which is arranged a deformable membrane. This membrane includes a central portion and a peripheral portion connecting the central portion to the lip. The plug of US 5 458 252 finds particular application in the field of packaging for medical use: the membrane is designed to deform during an increase in pressure inside a container closed by the cap. More precisely, during such an increase in pressure, the central and peripheral portions of the membrane do not deform together, but successively: in a first phase, only the central portion deforms, by articulation of a flexible hinge provided for in FIG. the junction between the central and peripheral parts, which tends to reinforce the tightness of the closure of the container resulting from the fact that the central portion passes from one side to the other of the peripheral portion which remains stationary relative to the lip ; then, in a second phase, as the central part is completely deformed, it is the peripheral part which is deformed, by articulation of a flexible hinge which is provided at the junction between the peripheral end of the peripheral part and the lip sealing and the axial position is unchanged throughout the deformation of the membrane, which leads to move the lip vis-à-vis the container and thus to break the seal of the closure of the container by the stopper, in particular to prevent rupture of the container by explosion. Thus, the teaching of US 5 458 252 is that, in case of internal overpressure of the container, the deformation of the entire membrane between two stable configurations must result in the neutralization of the sealing effect provided by the lip.
Ceci étant rappelé, certaines circonstances tendent à dégrader les performances d'étanchéité des lèvres du type évoqué précédemment. En effet, lors des diverses opérations de préparation, de remplissage et/ou de bouchage du récipient, le fait d'échauffer, par exemple à des fins de stérilisation ou d'autres, le col du récipient et/ou le bouchon fait courir un risque d'altération des caractéristiques d'étanchéité à l'interface entre le bouchon et le col en raison de leur déformation sous l'effet de la chaleur. En particulier, par fluage de la matière plastique la constituant, la lèvre tend à ne plus s'appuyer suffisamment fort contre le col, avec des risques ultérieurs de fuite et/ou de contamination du contenu du récipient.  This being recalled, certain circumstances tend to degrade the sealing performance of the lips of the type mentioned above. Indeed, during the various operations of preparation, filling and / or closure of the container, the fact of heating, for example for sterilization or other purposes, the neck of the container and / or the cap runs a risk of alteration of the sealing characteristics at the interface between the plug and the neck due to their deformation under the effect of heat. In particular, by creep of the plastic material constituting it, the lip tends to no longer press hard enough against the neck, with subsequent risks of leakage and / or contamination of the contents of the container.
Pour contrecarrer la perte d'étanchéité à l'interface entre le bouchon et le col, il est connu de recouvrir la paroi de fermeture du bouchon d'une couche en élastomère qui, lorsque la jupe est fixée au col, se retrouve interposée axialement entre la paroi de fermeture et le buvant du col. Un tel revêtement en élastomère supporte, sans altération de ses performances d'étanchéité, par exemple réchauffement du col de récipient et/ou du bouchon. Toutefois, l'intégration de ce revêtement dans le bouchon est coûteuse et induit d'autres problèmes, en particulier sur la facilité d'ouverture du bouchon.  To counteract the leakage at the interface between the plug and the neck, it is known to cover the closure wall of the plug with an elastomeric layer which, when the skirt is attached to the neck, is found interposed axially between the closing wall and the mouth of the neck. Such an elastomer coating withstands, without altering its sealing performance, for example heating the container neck and / or the plug. However, the integration of this coating in the cap is expensive and induces other problems, particularly the ease of opening the cap.
Le but de la présente invention est d'améliorer les bouchons à lèvre, par exemple à lèvre olive, en renforçant l'étanchéité de leur interface avec le col d'un récipient qu'ils ferment, même en cas de circonstances dommageables à cette étanchéité, notamment en cas d'échauffement du col de récipient et/ou du bouchon à des fins de stérilisation ou autres.  The object of the present invention is to improve the lip caps, for example olive lip, by strengthening the tightness of their interface with the neck of a container they close, even in case of circumstances damaging to this seal , especially in case of heating of the container neck and / or plug for sterilization or other purposes.
A cet effet, l'invention a pour objet un dispositif de bouchage pour un col de récipient, tel que défini à la revendication 1 .  For this purpose, the invention relates to a closure device for a container neck, as defined in claim 1.
Une des idées à la base de l'invention est de chercher à « ré-appuyer » la lèvre contre la face intérieure du col après que la jupe ait été fixée au col et, plus généralement, après que le dispositif de bouchage ait été installé sur le col, y compris, le cas échéant, après que soient intervenues des circonstances, telles qu'un échauffement du dispositif de bouchage et/ou du col de récipient à des fins de stérilisation ou autres, dommageables aux performances d'étanchéité de l'interface entre le col et le dispositif de bouchage, en particulier entre le col et la lèvre. Pour ce faire, l'invention prévoit d'intégrer au dispositif de bouchage une membrane bistable à même de se déformer entre deux configurations stables, tout en restant axialement fixée, par son extrémité périphérique, à la lèvre. Dans la première configuration, toute la membrane, excepté son extrémité périphérique, est disposée d'un côté axial du plan géométrique au niveau duquel son extrémité périphérique est liée fixement à la lèvre, tandis que, dans la seconde configuration, toute la membrane, excepté son extrémité périphérique, est disposée de l'autre côté axial de ce plan géométrique : on comprend qu'en passant la membrane de la première à la seconde configuration, cette membrane se déforme en tendant à expandre la lèvre transversalement, c'est-à-dire en tendant à écarter la lèvre radialement vers l'extérieur sur toute la périphérie de la lèvre. Selon l'invention, la membrane est conçue pour que dans la seconde configuration, cette membrane continue d'appliquer à la lèvre une partie de ces efforts d'expansion, ce qui revient à dire que, lorsque le dispositif de bouchage est en place sur le col, la membrane, une fois passée dans la seconde configuration, presse la lèvre contre le col. Dès lors, on comprend qu'en prévoyant de passer la membrane de sa première à sa seconde configuration après un potentiel relâchement de l'appui de la lèvre contre le col, ce relâchement résultant notamment d'un échauffement du dispositif de bouchage et/ou du col lors des diverses opérations de préparation, de remplissage et/ou de bouchage du récipient, la lèvre est ré-appuyée fermement contre le col, ce qui restaure, voire améliore l'étanchéité procurée par cette lèvre. One of the basic ideas of the invention is to seek to "re-press" the lip against the inner face of the neck after the skirt has been attached to the neck and, more generally, after the closure device has been installed. on the neck, including, where appropriate, after circumstances such as heating of the closure device and / or the container neck for sterilization or other purposes, which are detrimental to the sealing performance of the interface between the neck and the closure device, in particular between the neck and the lip. To do this, the invention provides for integrating a bistable membrane capable of deforming between two stable configurations, while remaining axially fixed, by its peripheral end, to the lip. In the first configuration, the entire membrane, except its peripheral end, is disposed on an axial side of the geometric plane at which its peripheral end is fixedly attached to the lip, while in the second configuration, the entire membrane, except its peripheral end, is disposed on the other axial side of this geometric plane: it is understood that passing the membrane from the first to the second configuration, the membrane is deformed tending to expand the lip transversely, that is to say say by tending to spread the lip radially outwards over the entire periphery of the lip. According to the invention, the membrane is designed so that in the second configuration, this membrane continues to apply to the lip part of these expansion forces, which is to say that when the closure device is in place on the neck, the membrane, once passed in the second configuration, press the lip against the neck. Therefore, it is understood that by planning to pass the membrane from its first to its second configuration after a potential relaxation of the support of the lip against the neck, this relaxation resulting in particular from a heating of the closure device and / or neck during the various operations of preparation, filling and / or capping of the container, the lip is re-pressed firmly against the neck, which restores, or even improves the seal provided by this lip.
De par son agencement au sein du dispositif de bouchage conforme à l'invention, la membrane est prévue pour passer de sa première à sa seconde configuration sous l'effet d'une surpression à l'intérieur du récipient, l'intensité de cette surpression devant évidemment être suffisante pour déformer la membrane depuis sa première configuration, intrinsèquement stable, jusqu'à au moins un état déformé à partir duquel la membrane tend à atteindre un état stable correspondant à sa seconde configuration. Ceci étant, l'origine de cette surpression n'est pas limitative de l'invention. A titre d'exemple, cette surpression à l'intérieure du récipient est préférentiellement obtenue par retournement du fond du récipient à l'issue du bouchage d'un récipient comportant un fond constitué d'une membrane inversible, tel celui décrit dans la demande internationale publiée sous le numéro WO 2015/192918.  Due to its arrangement within the closure device according to the invention, the membrane is designed to pass from its first to its second configuration under the effect of an overpressure inside the container, the intensity of this overpressure obviously having to be sufficient to deform the membrane from its first configuration, intrinsically stable, to at least one deformed state from which the membrane tends to reach a stable state corresponding to its second configuration. This being the case, the origin of this overpressure is not limiting of the invention. By way of example, this overpressure inside the container is preferably obtained by inverting the bottom of the container at the end of the capping of a container having a bottom consisting of an invertible membrane, such as that described in the international application. published under the number WO 2015/192918.
Les formes de réalisation de la membrane sont nombreuses et sujettes à diverses variantes, comme exemplifié par la suite. Dans tous les cas, le dispositif de bouchage conforme à l'invention peut être fabriqué de manière simple, économique et performante, notamment par moulage de matière plastique soit en une seule pièce, soit en deux pièces à assembler l'une à l'autre, avantageusement constituées de la même matière plastique.  The embodiments of the membrane are numerous and subject to various variations, as exemplified thereafter. In any case, the closure device according to the invention can be manufactured simply, economically and efficiently, in particular by molding plastic material either in one piece or in two pieces to be assembled together. , advantageously made of the same plastic material.
Des caractéristiques additionnelles avantageuses du dispositif de bouchage conforme à l'invention sont spécifiées aux revendications dépendantes. L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins sur lesquels : Additional advantageous features of the closure device according to the invention are specified in the dependent claims. The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings in which:
- la figure 1 est une vue en perspective d'un premier mode de réalisation d'un dispositif de bouchage conforme à l'invention, montré dans un état non-encore assemblé ;  - Figure 1 is a perspective view of a first embodiment of a closure device according to the invention, shown in a state not yet assembled;
- la figure 2 est une section longitudinale du dispositif de bouchage de la figure 1 ; - Figure 2 is a longitudinal section of the closure device of Figure 1;
- la figure 3 est une vue similaire à la figure 2, montrant le dispositif de bouchage de la figure 1 à l'état assemblé ; - Figure 3 is a view similar to Figure 2, showing the closure device of Figure 1 in the assembled state;
- la figure 4 est une vue similaire à la figure 3, montrant le dispositif de bouchage, à l'état assemblé, installé sur un col de récipient ;  - Figure 4 is a view similar to Figure 3, showing the closure device, in the assembled state, installed on a container neck;
- la figure 5 est une vue similaire à la figure 4, montrant le dispositif de bouchage dans une configuration de service, subséquente à celle montrée à la figure 4 ;  - Figure 5 is a view similar to Figure 4, showing the closure device in a service configuration, subsequent to that shown in Figure 4;
- les figures 6 et 7 sont des vues respectivement similaires aux figures 4 et 5, illustrant un deuxième mode de réalisation d'un dispositif de bouchage conforme à l'invention ;  - Figures 6 and 7 are views respectively similar to Figures 4 and 5, illustrating a second embodiment of a closure device according to the invention;
- les figures 8 à 1 1 sont des vues respectivement similaires aux figures 2 à 5, illustrant un troisième mode de réalisation d'un dispositif de bouchage conforme à l'invention ; et  - Figures 8 to 1 1 are views respectively similar to Figures 2 to 5, illustrating a third embodiment of a closure device according to the invention; and
- les figures 12 à 14 sont des vues respectivement similaires aux figures 3 à 5, illustrant un quatrième mode de réalisation d'un dispositif de bouchage conforme à l'invention.  - Figures 12 to 14 are views respectively similar to Figures 3 to 5, illustrating a fourth embodiment of a closure device according to the invention.
Sur les figures 1 à 5 est représenté un dispositif de bouchage 1 adapté pour être fixé par vissage, de manière amovible, sur un col 2 d'un récipient 3, représenté sur les figures 4 et 5 sur lesquelles seulement une partie de ce récipient 3 est visible. En pratique, le col 2 est soit venu de matière avec le reste du récipient 3, notamment lorsque ce dernier est une bouteille en verre ou en matière plastique, soit adapté pour être solidarisé à demeure sur une paroi du récipient, au niveau d'une ouverture traversant cette paroi.  FIGS. 1 to 5 show a closure device 1 adapted to be fixed by screwing, removably, onto a neck 2 of a container 3, shown in FIGS. 4 and 5, on which only part of this container 3 is visible. In practice, the neck 2 is integral with the rest of the container 3, especially when the latter is a glass or plastic bottle, or adapted to be secured permanently to a wall of the container, at a opening through this wall.
Le dispositif de bouchage 1 et le col 2 présentent des formes respectives s'étendant autour d'axes longitudinaux centraux qui sont sensiblement confondus, sous la référence X-X, lorsque le dispositif de bouchage 1 est fixé sur le col 2 comme sur les figures 4 et 5. Par commodité, la suite de la description est orientée en considérant que les termes « supérieur » et « haut » correspondent à une direction globalement parallèle à l'axe X-X et allant du corps principal du récipient 3 vers l'extrémité libre de son col 2, c'est-à-dire une direction dirigée vers la partie haute des figures, tandis que les termes « inférieur » et « bas » correspondent à une direction de sens opposée. De plus, l'adjectif « intérieur » désigne une direction transversale à l'axe X-X qui est orientée vers cet axe, tandis que l'adjectif « extérieur » désigne une direction transversale à l'axe, qui est orientée en sens opposé. The closure device 1 and the neck 2 have respective shapes extending around central longitudinal axes which are substantially merged, under the reference XX, when the closure device 1 is fixed on the neck 2 as in FIGS. 5. For convenience, the following description is oriented by considering that the terms "upper" and "high" correspond to a direction generally parallel to the axis XX and from the main body of the container 3 to the free end of its neck 2, that is to say a direction directed towards the upper part of the figures, while the terms "lower" and "bottom" correspond to a direction of opposite direction. In addition, the adjective "interior" designates a direction transverse to the axis XX which is oriented towards this axis, while the adjective "outside" designates a direction transverse to the axis, which is oriented in opposite directions.
Le col 2 comporte un corps 4 tubulaire à base circulaire, d'axe X-X. Comme représenté sur les figures 4 et 5, le corps 4 délimite, à son extrémité haute, un buvant 5 au niveau duquel le liquide contenu dans le récipient 3 ou, plus généralement, le contenu de ce récipient est destiné à être déversé. Sur la face extérieure du corps 4, le col 2 comporte un filet 6 en saillie depuis une face extérieure 4A du corps 4.  The neck 2 comprises a tubular body 4 with a circular base, of axis X-X. As shown in Figures 4 and 5, the body 4 defines, at its upper end, a rim 5 at which the liquid contained in the container 3 or, more generally, the contents of this container is intended to be discharged. On the outer face of the body 4, the neck 2 comprises a thread 6 projecting from an outer face 4A of the body 4.
Comme bien visible sur les figures 1 à 3, le dispositif de bouchage 1 comporte deux composants distincts qui, pour disposer du dispositif de bouchage dans un état fonctionnel illustré à la figure 3, sont assemblés fixement l'un à l'autre. Ces deux composants sont un bouchon 10 et un insert 20.  As clearly visible in FIGS. 1 to 3, the closure device 1 comprises two distinct components which, in order to dispose of the closure device in a functional state illustrated in FIG. 3, are fixedly joined to one another. These two components are a plug 10 and an insert 20.
Le bouchon 10, lorsque le dispositif de bouchage 1 est considéré fixé sur le col 2, est ouvert à son extrémité inférieure et fermée à son extrémité supérieure par une paroi de fermeture 1 1 . Cette paroi de fermeture 1 1 s'étend en travers, voire à la perpendiculaire de l'axe X-X et présente une forme discoïdale pleine qui est sensiblement centrée sur l'axe X-X.  The plug 10, when the closure device 1 is considered fixed on the neck 2, is open at its lower end and closed at its upper end by a closure wall January 1. This closure wall 1 1 extends across or even perpendicular to the axis X-X and has a solid disc shape which is substantially centered on the axis X-X.
Le bouchon 10 comporte également une jupe 12 tubulaire, qui est centrée sur l'axe X-X et qui s'étend axialement vers le bas depuis la périphérie extérieure de la paroi de fermeture 1 1 . La jupe 12 présente ainsi latéralement une face extérieure 12A et une face intérieure 12B, qui, dans l'exemple considéré sur les figures, sont toutes les deux à base circulaire, centrée sur l'axe X-X.  The plug 10 also comprises a tubular skirt 12, which is centered on the axis X-X and which extends axially downwards from the outer periphery of the closure wall January 1. The skirt 12 thus laterally has an outer face 12A and an inner face 12B, which, in the example considered in the figures, are both circular, centered on the axis X-X.
Comme représenté sur les figures 4 et 5, lorsque le dispositif de bouchage 1 est fixé sur le col 2, la paroi de fermeture 1 1 s'étend à la fois au-dessus du col 2, en étant disposée notamment à l'aplomb axial du buvant 5, et en travers de ce col, en étant notamment agencée en travers de toute l'ouverture de ce col. De plus, la jupe 12 entoure extérieurement le corps 4 du col 2, sa face intérieure 12B étant en regard de la face extérieure 4A de ce corps 4.  As shown in Figures 4 and 5, when the closure device 1 is fixed on the neck 2, the closure wall 1 1 extends both above the neck 2, being arranged in particular at axial plumb 5, and across this neck, being arranged in particular across the entire opening of this neck. In addition, the skirt 12 externally surrounds the body 4 of the neck 2, its inner face 12B facing the outer face 4A of this body 4.
La jupe 12 est intérieurement munie de moyens de fixation amovible au col 2, ces moyens de fixation étant constitués, dans la forme de réalisation considérée ici, d'un filet 13 qui est en saillie depuis la face intérieure 12B de la jupe et qui s'enroule en hélice sur cette face intérieure 12B. La fixation du dispositif de bouchage 1 sur le col 2 consiste à visser le filet 13 autour du corps 4 du col, ce filet 13 mettant en prise le filet 6 de ce corps 4, jusqu'à ce que la paroi de fermeture 1 1 soit plaquée vers le bas contre le buvant 5, comme représenté sur les figures 4 et 5. A l'inverse, le retrait du dispositif de bouchage 1 vis-à-vis du col 2 consiste à dévisser le filet 13 vis-à-vis du filet 6, jusqu'à l'en dégager. Le bouchon 10 comporte en outre une lèvre 14 annulaire, qui s'étend axialement vers le bas depuis la paroi de fermeture 1 1 , de manière centrée sur l'axe X-X, à l'intérieur de la jupe 12 : lorsque le dispositif de bouchage 1 est fixé sur le col 2 comme sur les figures 4 et 5, une face extérieure 14A de la lèvre 14 est appuyée de manière étanche contre une face intérieure 4B du corps 4 du col 2 afin d'étancher la fermeture de ce col par le dispositif de bouchage. The skirt 12 is internally provided with removable fastening means to the neck 2, these fixing means being constituted, in the embodiment considered here, a net 13 which projects from the inner face 12B of the skirt and which is wound helically on this inner face 12B. Fixing the closure device 1 on the neck 2 is to screw the thread 13 around the body 4 of the neck, the thread 13 engaging the thread 6 of the body 4, until the closure wall 1 1 is downwards against the rim 5, as shown in FIGS. 4 and 5. On the other hand, the withdrawal of the closure device 1 from the collar 2 consists of unscrewing the thread 13 vis-à-vis the net 6, to the clear. The plug 10 further comprises an annular lip 14, which extends axially downwardly from the closure wall 1 1, centrally on the axis XX, inside the skirt 12: when the closure device 1 is fixed on the neck 2 as in Figures 4 and 5, an outer face 14A of the lip 14 is pressed sealingly against an inner face 4B of the body 4 of the neck 2 to seal the closure of this neck by the capping device.
A titre d'aménagement avantageux visant à renforcer l'étanchéité de cette fermeture, la face extérieure 14A de la lèvre 14 est renflée vers l'extérieur, notamment afin d'augmenter l'étendue et/ou l'intensité du contact entre la lèvre 14 et le corps 4 du col 2.  As an advantageous arrangement for strengthening the tightness of this closure, the outer face 14A of the lip 14 is bulged outwardly, in particular to increase the extent and / or the intensity of the contact between the lip 14 and the body 4 of the neck 2.
Egalement à titre d'aménagement optionnel visant à renforcer l'étanchéité de la fermeture du col 2 par le dispositif de bouchage 1 , la face intérieure 12B de la jupe 12 est pourvue, à son extrémité supérieure, d'un talon 15 saillant, qui étrangle localement la périphérie intérieure de la jupe 12 par rapport au reste de la face intérieure 12B de la jupe. Lorsque le dispositif de bouchage 1 est fixé au col 2, ce talon 15 ceinture de manière ajustée la périphérie extérieure du buvant 5 du col 2, le col se retrouvant ainsi, en quelque sorte, pincé entre la lèvre 14 et le talon 15.  Also as an optional arrangement for enhancing the tightness of the closure of the neck 2 by the closure device 1, the inner face 12B of the skirt 12 is provided at its upper end with a projecting heel 15 which strangles locally the inner periphery of the skirt 12 relative to the remainder of the inner face 12B of the skirt. When the closure device 1 is attached to the neck 2, this heel 15 tightly adjusts the outer periphery of the rim 5 of the neck 2, the neck thus found, in a way, pinched between the lip 14 and the heel 15.
Comme bien visible sur les figures 1 et 2, l'insert 20 comprend, quant à lui, une membrane 21 et une bague 22 annulaire, qui entoure la périphérie de la membrane 21 . Lorsque le bouchon 10 et l'insert 20 sont assemblés l'un à l'autre, la membrane 21 s'étend globalement de manière transversale à l'axe X-X, en étant agencée à l'intérieur de la jupe 12, et l'axe central de la bague 22 est sensiblement confondu avec l'axe X-X, de sorte que, par commodité, cet axe central de la bague 22 est également désigné par la suite sous la référence X-X.  As clearly visible in FIGS. 1 and 2, the insert 20 comprises, in turn, a membrane 21 and an annular ring 22, which surrounds the periphery of the membrane 21. When the plug 10 and the insert 20 are joined to each other, the membrane 21 extends generally transversely to the axis XX, being arranged inside the skirt 12, and the central axis of the ring 22 is substantially coincident with the axis XX, so that, for convenience, this central axis of the ring 22 is also designated later under the reference XX.
La bague 22 est conçue, notamment de par son dimensionnement extérieur, pour être engagée et fixée à l'intérieur de la lèvre 14 du bouchon 10 de manière à réaliser l'assemblage fixe ente le bouchon 10 et l'insert 20. Suivant une forme de réalisation pratique, la bague 22 est emmanchée, notamment emmanchée en force, à l'intérieur de la lèvre 14, de manière à se retrouver coincée fixement contre la face intérieure 14B de la lèvre 14. Suivant un aménagement, qui est alternatif ou complémentaire à cet emmanchement et qui n'est pas représenté en détail sur les figures, la face intérieure 14B de la lèvre 14 présente une contredépouille qui participe au maintien en position de la bague 22 à l'intérieur de la lèvre 14 à l'état assemblé du dispositif de bouchage 1 . De même, en complément ou en alternative à l'emmanchement de la bague 22 à l'intérieur de la lèvre 14, d'autres aménagements d'assemblage peuvent être envisagés, tels qu'un soudage, un collage, un clipsage, etc. de l'insert dans le bouchon. Le cas échéant, la fixation de la bague 22 à l'intérieur de la lèvre 14 est renforcée par pincement périphérique de la bague 22, moyennant une déformation radiale de la lèvre 14, dirigée vers l'axe X-X, lorsque le dispositif de bouchage 1 est installé sur le col 2, comme sur les figures 4 et 5. The ring 22 is designed, in particular by its external dimensioning, to be engaged and fixed inside the lip 14 of the plug 10 so as to achieve the fixed assembly between the plug 10 and the insert 20. In a form practical embodiment, the ring 22 is fitted, in particular force-fitted, inside the lip 14, so as to be stuck fixedly against the inner face 14B of the lip 14. According to an arrangement, which is alternative or complementary at this fitting and which is not shown in detail in the figures, the inner face 14B of the lip 14 has a counterpane which contributes to maintaining the position of the ring 22 inside the lip 14 in the assembled state of the closure device 1. Likewise, in addition to or as an alternative to the fitting of the ring 22 inside the lip 14, other assembly arrangements may be envisaged, such as welding, gluing, clipping, etc. of the insert in the cap. If necessary, the fixing of the ring 22 inside the lip 14 is reinforced by peripheral nip of the ring 22, by means of a radial deformation of the lip 14, directed towards the axis XX, when the closure device 1 is installed on the neck 2, as in Figures 4 and 5.
Comme bien visible sur les figures 1 à 3, la membrane 21 comporte deux parties concentriques, à savoir une partie centrale 23 et une partie périphérique 24, qui, lorsque l'insert 20 est assemblé au bouchon 10, sont sensiblement centrées sur l'axe X-X. Dans la forme de réalisation considérée sur les figures, la partie centrale 23 présente une forme globalement discoïdale et la partie périphérique 24 présente une forme globalement annulaire. Pour des raisons qui apparaîtront plus loin, la partie centrale 23 et la partie périphérique 24 sont jointes l'une à l'autre par une charnière souple 25 qui court tout autour de l'axe X-X : ainsi, la périphérie extérieure de la partie centrale 23 est, sur toute son étendue, reliée à la périphérie intérieure de la partie périphérique 24 par la charnière souple 25 qui relie ainsi directement l'une à l'autre ces périphéries extérieure et intérieure. La charnière souple 25 permet de plier localement la membrane 21 , par articulation relative entre sa partie centrale 23 et sa partie périphérique 24 autour d'un axe géométrique d'articulation courant tout autour de l'axe X-X.  As clearly visible in FIGS. 1 to 3, the membrane 21 has two concentric parts, namely a central portion 23 and a peripheral portion 24, which, when the insert 20 is assembled to the stopper 10, are substantially centered on the axis XX. In the embodiment considered in the figures, the central portion 23 has a generally disc shape and the peripheral portion 24 has a generally annular shape. For reasons that will appear later, the central portion 23 and the peripheral portion 24 are joined to each other by a flexible hinge 25 which runs around the axis XX: thus, the outer periphery of the central portion 23 is, over its entire extent, connected to the inner periphery of the peripheral portion 24 by the flexible hinge 25 which thus connects directly to each other these outer and inner peripheries. The flexible hinge 25 makes it possible to locally bend the membrane 21, by relative articulation between its central portion 23 and its peripheral portion 24 around a geometric axis of articulation running around the X-X axis.
A sa périphérie extérieure, la partie périphérique 24 constitue une extrémité périphérique 21 A de la membrane 21 , en formant une charnière souple 26 de jonction avec la bague 22. Cette charnière souple 26 s'étend tout autour de l'axe X-X et permet l'articulation relative entre la partie périphérique 24 et la bague 22 autour d'un axe géométrique d'articulation qui court autour de l'axe X-X.  At its outer periphery, the peripheral portion 24 constitutes a peripheral end 21A of the membrane 21, forming a flexible hinge 26 joining the ring 22. This flexible hinge 26 extends around the axis XX and allows the relative articulation between the peripheral portion 24 and the ring 22 around a geometric axis of articulation which runs around the axis XX.
Quelle que soit la forme de réalisation de la jonction entre l'extrémité périphérique 21 A de la membrane 21 et la bague 22, cette extrémité périphérique 21 A et cette bague 22 sont fixes l'une par rapport à l'autre dans la direction de l'axe X-X, de sorte que, à l'état assemblé du dispositif de bouchage 1 comme sur la figure 3, l'extrémité périphérique 21 A de la membrane 21 est liée à la lèvre 14 du bouchon 10 de manière fixe dans la direction de l'axe X-X, en courant sur toute la périphérie intérieure de la lèvre 14 au niveau d'un plan géométrique P qui est transversal, voire, comme ici, perpendiculaire à l'axe X-X. Dans la forme de réalisation considérée sur les figures 1 à 5, on comprend que l'extrémité périphérique 21 A de la membrane 21 constitue la partie de la charnière souple 26, qui reste fixe axialement par rapport à la lèvre 14, le reste de cette charnière souple 26 étant constitué par une bande périphérique de la partie périphérique 24 de la membrane 21 , cette bande périphérique reliant l'une à l'autre l'extrémité périphérique 21 A au reste de la partie périphérique 24. Par articulation de ses charnières souples 25 et 26, la membrane 21 est déformable entre deux configurations stables, à savoir une première configuration, montrée sur les figures 3 et 4, et une seconde configuration montrée sur la figure 5. Dans la première configuration, l'intégralité de la membrane 21 , excepté son extrémité périphérique 21 A, est disposée du côté inférieur du plan géométrique P, avec sa partie centrale 23 qui est davantage éloignée axialement de ce plan géométrique P que sa partie périphérique 24. Dans la seconde configuration, l'intégralité de la membrane 21 , excepté son extrémité périphérique 21 A, est disposée du côté supérieur du plan géométrique P, avec sa partie centrale 23 qui est davantage éloignée axialement de ce plan géométrique P que sa partie périphérique 24. Bien entendu, du fait que l'extrémité périphérique 21 A est fixe axialement au niveau du plan géométrique P, le positionnement axial entre cette extrémité périphérique 21 A et le plan géométrique P est inchangé lorsque la membrane 21 est déformée entre ses première et seconde configurations. Whatever the embodiment of the junction between the peripheral end 21 A of the diaphragm 21 and the ring 22, this peripheral end 21 A and this ring 22 are fixed relative to each other in the direction of the axis XX, so that, in the assembled state of the closure device 1 as in Figure 3, the peripheral end 21 A of the membrane 21 is connected to the lip 14 of the cap 10 fixedly in the direction of the axis XX, by running over the entire inner periphery of the lip 14 at a geometrical plane P which is transverse, or, as here, perpendicular to the axis XX. In the embodiment considered in FIGS. 1 to 5, it is understood that the peripheral end 21 A of the diaphragm 21 constitutes the part of the flexible hinge 26, which remains fixed axially with respect to the lip 14, the remainder of this flexible hinge 26 being constituted by a peripheral band of the peripheral portion 24 of the membrane 21, this peripheral band connecting to each other the peripheral end 21 to the rest of the peripheral portion 24. By articulation of its flexible hinges 25 and 26, the membrane 21 is deformable between two stable configurations, namely a first configuration, shown in Figures 3 and 4, and a second configuration shown in Figure 5. In the first configuration, the the whole of the membrane 21, except its peripheral end 21A, is arranged on the lower side of the geometrical plane P, with its central part 23 which is further away axially from this geometrical plane P than its peripheral part 24. In the second configuration, the entire diaphragm 21, except its peripheral end 21A, is disposed on the upper side of the geometrical plane P, with its central portion 23 which is further away axially from this geometrical plane P than its peripheral portion 24. Of course, fact that the peripheral end 21 A is axially fixed at the geometrical plane P, the axial positioning between this peripheral end 21A and the geometric plane P is unchanged when the membrane 21 is deformed between its first and second configurations.
Lorsque le dispositif de bouchage 1 est fixé au col 2, comme sur les figures 4 et 5, la déformation de la membrane 21 de sa première configuration à sa seconde configuration conduit à ce que la membrane 21 applique à la lèvre 14, au travers de la bague 22, des contraintes d'expansion transversale de la lèvre 14, c'est-à-dire des contraintes, globalement radiales à l'axe X-X et dirigées vers l'extérieur, qui tendent à écarter la lèvre 14 vers l'extérieur sur toute la périphérie de cette lèvre. Or, dans la mesure où la face extérieure 14A de la lèvre 14 est contrainte en positionnement vis-à-vis du col 2 de par son appui contre la face intérieure 4B du corps 4 de ce col, les efforts d'expansion précités conduisent à ce que la lèvre 14 soit pressée contre le col 2, c'est-à- dire appuyée contre la face intérieure 4B de ce col davantage que cette lèvre est appuyée lorsque la membrane 21 est dans sa première configuration. De plus, la membrane 21 est conçue de sorte que, une fois qu'elle est dans sa seconde configuration de déformation, la membrane maintient au moins une partie des efforts d'expansion précités, en pressant ainsi fermement la lèvre 14 contre le col 2, ce qui renforce l'étanchéité du contact entre la face extérieure 14A de la lèvre 14 et la face intérieure 4B du corps 4 du col 2 comparativement à l'étanchéité de ce contact lorsque la membrane 21 est dans sa première configuration. En particulier, de par sa conception, la membrane 21 occupant la seconde configuration applique ainsi à la lèvre 14 un effort F' qui est transversal et centrifuge par rapport à l'axe X-X, comme indique sur la figure 5. Dans la forme de réalisation considérée sur les figures 1 à 5, la capacité de la membrane 21 à ainsi presser la lèvre 14 contre le col 2 une fois que cette membrane est passée dans la seconde configuration, résulte de la structure et de l'agencement de sa partie centrale 23, de sa partie périphérique 24 et de sa charnière souple 25. Pour entraîner la déformation de la membrane 21 de sa première configuration à sa seconde configuration alors que le dispositif de bouchage 1 est fixé au col 2, une surpression est à créer à l'intérieur du récipient 3 : de par son agencement à l'intérieur et en travers du col 2, la membrane 21 est sensible à un effort fluidique F, indiqué sur la figure 5, généré à l'intérieur du récipient 3, en particulier à l'intérieur du col 2, par la surpression précitée. En pratique, comme évoqué précédemment, l'origine de cette surpression n'est pas limitative de l'invention, du moment que l'intensité de la surpression soit suffisante pour déformer la membrane 21 depuis sa première configuration jusqu'à sa seconde configuration ou, à tout le moins, jusqu'à un état déformé intermédiaire à partir duquel la membrane 21 tendra, par rappel vers un état stable, vers sa seconde configuration plutôt que vers sa première configuration. A titre d'exemple, la surpression précitée résulte du retournement d'une paroi, en particulier du fond, du récipient 3. When the closure device 1 is fixed to the neck 2, as in FIGS. 4 and 5, the deformation of the membrane 21 from its first configuration to its second configuration results in the membrane 21 applying to the lip 14, through the ring 22, transverse expansion stresses of the lip 14, that is to say stresses, generally radial to the axis XX and directed outwards, which tend to move the lip 14 outwards on the whole periphery of this lip. However, insofar as the outer face 14A of the lip 14 is constrained in positioning vis-à-vis the neck 2 by its support against the inner face 4B of the body 4 of the neck, the said expansion efforts lead to that the lip 14 is pressed against the neck 2, that is to say pressed against the inner face 4B of the neck more than the lip is pressed when the membrane 21 is in its first configuration. In addition, the membrane 21 is designed so that, once in its second deformation configuration, the membrane maintains at least a portion of the aforementioned expansion forces, thereby firmly pressing the lip 14 against the neck 2 , which reinforces the sealing of the contact between the outer face 14A of the lip 14 and the inner face 4B of the body 4 of the neck 2 compared to the sealing of this contact when the membrane 21 is in its first configuration. In particular, by design, the membrane 21 occupying the second configuration thus applies to the lip 14 a force F 'which is transverse and centrifugal with respect to the axis XX, as indicated in FIG. 5. In the embodiment considered in FIGS. 1 to 5, the capacity of the membrane 21 to thus press the lip 14 against the neck 2 once this membrane has passed into the second configuration, results from the structure and the arrangement of its central portion 23 , its peripheral portion 24 and its flexible hinge 25. To cause the deformation of the membrane 21 from its first configuration to its second configuration while the closure device 1 is attached to the neck 2, an overpressure is created inside the container 3: by its arrangement inside and across the neck 2, the membrane 21 is sensitive to a fluidic force F, shown in Figure 5, generated inside the container 3, in particular inside the neck 2, by the aforementioned overpressure. In practice, as mentioned above, the origin of this overpressure is not limiting of the invention, as long as the intensity of the overpressure is sufficient to deform the membrane 21 from its first configuration to its second configuration or at the very least, to an intermediate deformed state from which the membrane 21 will tend, by return to a stable state, to its second configuration rather than to its first configuration. By way of example, the above-mentioned overpressure results from the inversion of a wall, in particular of the bottom, of the container 3.
Suivant une disposition optionnelle, qui est mise en œuvre dans le premier mode de réalisation considéré sur les figures 1 à 5, la partie centrale 23 de la membrane 21 est pourvue, sur sa face supérieure, d'une entretoise 27. Comme bien visible sur la figure 1 , cette entretoise 27 présente par exemple une forme annulaire, centrée sur l'axe X-X et à base circulaire. Lorsque la membrane 21 passe de sa première à sa seconde configuration, l'entretoise 27 se rapproche axialement de la paroi de fermeture 1 1 . De plus, le dimensionnement axial de l'entretoise 27 est prévu pour que, lorsque la membrane 21 atteint la seconde configuration de déformation, l'entretoise 27 bute axialement contre la paroi de fermeture 1 1 , contraignant ainsi la membrane 21 vers le bas, en direction du plan géométrique P : cette contrainte renforce avantageusement l'action de pressage de la lèvre 14 contre le col 2 par la membrane 21 et, par-là, l'étanchéité du contact entre la lèvre et le col.  According to an optional arrangement, which is implemented in the first embodiment considered in Figures 1 to 5, the central portion 23 of the membrane 21 is provided on its upper face with a spacer 27. As visible on Figure 1, this spacer 27 has for example an annular shape, centered on the axis XX and circular base. When the membrane 21 passes from its first to its second configuration, the spacer 27 is axially closer to the closure wall January 1. In addition, the axial dimensioning of the spacer 27 is provided so that, when the membrane 21 reaches the second deformation configuration, the spacer 27 abuts axially against the closing wall January 1, thereby forcing the membrane 21 downwards, in the direction of the geometric plane P: this constraint advantageously strengthens the pressing action of the lip 14 against the neck 2 by the membrane 21 and, there-by, the sealing of the contact between the lip and the neck.
On notera que les spécificités de fabrication du dispositif de bouchage 1 décrit jusqu'ici ne sont pas limitatives de l'invention. Ceci étant, une forme de réalisation pratique consiste à réaliser, d'une part, le bouchon 10 d'une seule pièce par moulage d'une matière plastique et, d'autre part, l'insert 20 d'une seule pièce par moulage d'une matière plastique qui est avantageusement la même que celle du bouchon 10. En particulier, le bouchon 10 et/ou l'insert 20 sont avantageusement constitués d'une matière plastique semi-rigide, telle que du polypropylène ou du polyéthylène, préférentiellement mise en forme par moulage. Il en résulte pour l'insert 20 que la bague 22, la partie centrale 23 et la partie périphérique 24 sont venues de moulage ensemble. Plus généralement, la bague 22, la partie centrale 23 et la partie périphérique 24 sont avantageusement venues de matière ensemble. Quant au bouchon 10, on notera que, considéré isolément, ce bouchon correspond à des réalisations préexistantes : ainsi, le dispositif de bouchage 1 peut être obtenu par assemblage d'un bouchon préexistant, constituant le bouchon 10, avec l'insert 20. It will be noted that the manufacturing specificities of the closure device 1 described so far are not limiting of the invention. This being so, a practical embodiment consists in producing, on the one hand, the plug 10 in one piece by molding a plastic material and, on the other hand, the insert 20 in one piece by molding. a plastic material which is advantageously the same as that of the plug 10. In particular, the plug 10 and / or the insert 20 are advantageously made of a semi-rigid plastic material, such as polypropylene or polyethylene, preferably shaping by molding. This results for the insert 20 that the ring 22, the central portion 23 and the peripheral portion 24 are molded together. More generally, the ring 22, the central portion 23 and the peripheral portion 24 are advantageously integral with each other. As for the plug 10, it will be noted that, considered in isolation, this plug corresponds to pre-existing embodiments: thus, the capping device 1 can be obtained by assembling a pre-existing plug constituting the plug 10, with the insert 20.
Sur les figures 6 et 7 est représenté un mode de réalisation alternatif du dispositif de bouchage 1 , sous forme d'un dispositif de bouchage 101 .  FIGS. 6 and 7 show an alternative embodiment of the closure device 1, in the form of a closure device 101.
Le dispositif de bouchage 101 comprend un bouchon 1 10 qui est fonctionnellement, voire, comme ici, structurellement similaire au bouchon 10 du dispositif de bouchage 1 . Le bouchon 1 10 ne sera donc pas décrit ici plus avant.  The closure device 101 comprises a plug 1 10 which is functionally or even, as here, structurally similar to the plug 10 of the closure device 1. The cap 1 10 will not be described here further.
Le dispositif de bouchage 101 comprend également un insert 120 incluant une membrane 121 et une bague 122. La bague 122 est fonctionnellement, voire, comme ici, structurellement similaire à la bague 22 de l'insert 20 du dispositif de bouchage 1 . La bague 122 ne sera donc pas décrite ici plus avant.  The closure device 101 also comprises an insert 120 including a membrane 121 and a ring 122. The ring 122 is functionally, or, as here, structurally similar to the ring 22 of the insert 20 of the closure device 1. The ring 122 will not be described here further.
Quant à la membrane 121 , elle se distingue de la membrane 21 de l'insert 20 par le fait que, plutôt que d'être réalisée sous forme de parties concentriques comme la partie centrale 23 et la partie périphérique 24 de la membrane 21 , cette membrane 121 est constituée d'un voile 128. Comme bien visible sur les figures 6 et 7, ce voile 128 présente, en dehors de son extrémité périphérique correspondant à l'extrémité périphérique 121 A de la membrane 121 , une épaisseur sensiblement homogène, étant entendu que cette épaisseur correspond à la dimension la plus petite des trois dimensions du voile 128 et est délimitée entre les faces inférieure et supérieure du voile 128. La conformation en voile de la membrane 121 permet à cette dernière de se déformer entre les première et seconde configurations, par cintrage continu du voile 128, comme montré sur les figures 6 et 7.  As for the membrane 121, it is distinguished from the membrane 21 of the insert 20 by the fact that, rather than being made in the form of concentric parts such as the central portion 23 and the peripheral portion 24 of the membrane 21, this membrane 121 consists of a web 128. As clearly visible in FIGS. 6 and 7, this web 128 has, outside its peripheral end corresponding to the peripheral end 121 A of the membrane 121, a substantially homogeneous thickness, being understood that this thickness corresponds to the smallest dimension of the three dimensions of the web 128 and is delimited between the lower and upper faces of the web 128. The sail conformation of the membrane 121 allows the latter to deform between the first and second configurations, by continuously bending the web 128, as shown in FIGS. 6 and 7.
En fonctionnement, le comportement de la membrane 121 est similaire à celui de la membrane 21 , en particulier en lien avec l'application à la membrane 121 de l'effort fluidique F et à l'application par la membrane 121 de l'effort F' à la lèvre d'étanchéité du bouchon 1 10.  In operation, the behavior of the membrane 121 is similar to that of the membrane 21, in particular in connection with the application to the membrane 121 of the fluidic force F and the application by the membrane 121 of the force F to the sealing lip of the plug 1 10.
Sur les figures 8 à 1 1 est représenté un mode de réalisation alternatif au dispositif de bouchage 1 , sous forme d'un dispositif de bouchage 201 .  FIGS. 8 to 11 show an alternative embodiment of the closure device 1, in the form of a closure device 201.
Le dispositif de bouchage 201 comporte un bouchon 210 incluant une jupe 212 et une lèvre 214 qui sont fonctionnellement, voire, comme ici, structurellement similaires à la jupe 12 et à la lèvre 14 du bouchon 10 du dispositif de bouchage 1 . Le bouchon 210 se distingue du bouchon 10 par le fait que, contrairement à ce dernier, le bouchon 210 n'est pas, à son extrémité supérieure, fermé par une paroi de fermeture similaire à la paroi de fermeture 1 1 . Plus précisément, le bouchon 210 comporte, à son extrémité supérieure, une couronne 21 1 discoïdale, qui est centrée sur l'axe X-X et qui est ajourée dans sa région centrale, c'est-à-dire traversée de part en part par un trou 21 1 A. La jupe 12 et la lèvre 214 s'étendent axialement vers le bas depuis la couronne 21 1 , de manière similaire à l'agencement de la jupe 12 et de la Ièvre14 depuis la région périphérique concernée de la paroi de fermeture 1 1 du bouchon 10. Ainsi, lorsque le bouchon 210 est fixé au col 2 du récipient 3, comme sur les figures 10 et 1 1 , la couronne 21 1 s'étend à l'aplomb axial du buvant 5 de ce col 2. The closure device 201 comprises a plug 210 including a skirt 212 and a lip 214 which are functionally or even, as here, structurally similar to the skirt 12 and the lip 14 of the plug 10 of the closure device 1. The plug 210 differs from the plug 10 in that, unlike the latter, the plug 210 is not, at its upper end, closed by a closure wall similar to the closure wall January 1. More specifically, the plug 210 comprises, at its upper end, a discoidal crown 21 1, which is centered on the axis XX and which is perforated in its central region, that is to say traversed from one side to the other by a hole 21 1 A. The skirt 12 and the lip 214 extend axially downwards from the ring 21 1, similarly to the arrangement of the skirt 12 and the lip 14 from the relevant peripheral region of the closure wall 1 1 of the plug 10. Thus, when the plug 210 is attached to the neck 2 of the container 3, as in Figures 10 and 1 1, the ring 21 1 extends to the axial plumb of the rim 5 of the neck 2.
Par ailleurs, le bouchon 210 comprend une membrane 221 qui, fonctionnellement, est similaire à la membrane 21 du bouchon 10, dans le sens où cette membrane 221 est déformable entre les première et seconde configurations définies précédemment. La membrane 221 se distingue structurellement de la membrane 21 par le fait que son extrémité périphérique 221 A est jointe directement à la lèvre 214, la membrane 221 s'étendant ainsi en saillie depuis la face intérieure 214B de la lèvre 214, comme bien visible sur les figures 8 à 1 1 . En d'autres termes, à la différence de la membrane 21 , la membrane 221 n'est pas associée à une bague, telle que la bague 22 du dispositif de bouchage 1 , et n'est pas intégrée à un insert distinct du bouchon, tel que l'insert 20 du dispositif de bouchage 1 : au contraire, la membrane 221 est intégrée au bouchon 210, sans intercaler entre cette membrane 221 et la lèvre 214 une pièce intermédiaire.  Furthermore, the plug 210 comprises a membrane 221 which, functionally, is similar to the membrane 21 of the plug 10, in the sense that this membrane 221 is deformable between the first and second configurations defined above. The membrane 221 is structurally distinct from the membrane 21 in that its peripheral end 221 A is joined directly to the lip 214, the membrane 221 thus projecting from the inside 214B of the lip 214, as can be seen on Figures 8 to 1 1. In other words, unlike the membrane 21, the membrane 221 is not associated with a ring, such as the ring 22 of the closure device 1, and is not integrated with an insert other than the plug, such as the insert 20 of the closure device 1: in contrast, the membrane 221 is integrated in the plug 210, without interposing between the membrane 221 and the lip 214 an intermediate piece.
En pratique, la membrane 221 est avantageusement venue de matière avec la lèvre 214, notamment venue de moulage avec cette lèvre. Au sein du bouchon 210, le trou 21 1 A de la couronne 21 1 se retrouve disposé à l'aplomb axial de la membrane 221 , de sorte que la fermeture du bouchon 10 vers le haut est assurée conjointement par la couronne 21 1 et la membrane 221 , même si, comme dans l'exemple de réalisation considéré sur les figures, cette couronne 21 1 et cette membrane 221 ne sont pas situées au même niveau le long de l'axe X-X.  In practice, the membrane 221 is advantageously integral with the lip 214, especially molded with this lip. Within the plug 210, the hole 21 1 A of the ring 21 1 is found disposed at the axial plumb with the diaphragm 221, so that the closure of the plug 10 upwards is provided jointly by the ring 21 1 and the membrane 221, although, as in the embodiment shown in the figures, this ring 21 1 and this membrane 221 are not located at the same level along the axis XX.
En fonctionnement, le dispositif de bouchage 201 se comporte de façon similaire au dispositif de bouchage 1 , notamment en lien avec l'application sur la membrane 221 de l'effort fluidique F pour passer cette membrane de sa première configuration de déformation à sa seconde configuration de déformation, ainsi qu'en lien avec l'application à la lèvre 214 de l'effort F' par la membrane 221 lorsque cette dernière occupe sa seconde configuration de déformation.  In operation, the closure device 201 behaves similarly to the closure device 1, in particular in connection with the application on the membrane 221 of the fluidic force F to pass this membrane from its first deformation configuration to its second configuration deformation, as well as in connection with the application to the lip 214 of the force F 'by the membrane 221 when the latter occupies its second deformation configuration.
Comparativement au bouchon 10 du dispositif de bouchage 1 , on comprend que le bouchon 210 du dispositif de bouchage 201 ne correspond pas à un bouchon préexistant. La fabrication, notamment par moulage, du bouchon 210 nécessite donc des dispositions spécifiques.  Compared to the cap 10 of the closure device 1, it is understood that the cap 210 of the closure device 201 does not correspond to a pre-existing plug. The manufacture, in particular by molding, of the plug 210 therefore requires specific provisions.
A titre d'aménagement optionnel du dispositif de bouchage 201 , ce dernier comporte une pièce rapportée, destinée à fermer le trou 21 1 A de la couronne 21 1 : cette pièce rapportée constitue ainsi une coiffe 230 de fermeture, qui, sur la figure 8, est montrée désassemblée du bouchon 210 tandis que, sur les figures 9 à 1 1 , cette coiffe 230 est assemblée au bouchon 210. Cet assemblage consiste à fixer la coiffe 230 au trou 21 1 A de la couronne 21 1 , et ce par tous moyens appropriés, par exemple par soudage, par collage, par coincement, etc. Dans la mesure où la coiffe 230 ne participe pas à la fermeture étanche du col 2, cette coiffe peut être réalisée en des matériaux très divers : à titre d'exemple non limitatif, la coiffe 230 peut être réalisée en un complexe multicouche, ayant des capacités renforcées de protection du contenu du récipient 3 contre l'oxygène et/ou les ultraviolets, plus généralement ayant des capacités renforcées de conservation du produit contenu dans le récipient 3. Quel que soit son matériau constitutif, la coiffe 230 peut avantageusement intégrer, sur sa face supérieure, un marquage, tel qu'une mention publicitaire. As an optional arrangement of the closure device 201, the latter comprises an insert, intended to close the hole 21 1 A of the ring 21 1: this insert thus constitutes a cap 230 of closure, which in Figure 8 , is shown disassembled plug 210 while, in Figures 9 to 1 1, this cap 230 is assembled to the plug 210. This assembly is to fix the cap 230 to the hole 21 1 A of the ring 21 1, and by any appropriate means for example by welding, gluing, wedging, etc. Insofar as the cap 230 does not participate in the tight closure of the neck 2, this cap can be made of very diverse materials: by way of non-limiting example, the cap 230 can be made of a multilayer complex, having reinforced capacity for protecting the contents of the container 3 against oxygen and / or ultraviolet, more generally having enhanced capacity for preserving the product contained in the container 3. Whatever its constituent material, the cap 230 may advantageously integrate, on its upper side, a marking, such as an advertisement.
Sur les figures 12 à 14 est représenté un mode de réalisation alternatif au dispositif de bouchage 101 , sous la forme d'un dispositif de bouchage 301 .  In Figures 12 to 14 is shown an alternative embodiment of the closure device 101, in the form of a closure device 301.
Le dispositif de bouchage 301 comporte un bouchon 310 qui est fonctionnellement similaire au bouchon 1 10 du dispositif de bouchage 101 , dans le sens où ce bouchon 310 inclut une paroi de fermeture 31 1 , une jupe 312 et une lèvre 314 respectivement similaires à celles du bouchon 1 10.  The closure device 301 comprises a plug 310 which is functionally similar to the plug 1 10 of the closure device 101, in the sense that the plug 310 includes a closure wall 31 1, a skirt 312 and a lip 314 respectively similar to those of the cap 1 10.
Le dispositif de bouchage 301 comporte également une membrane 321 qui est similaire à la membrane 121 du dispositif de bouchage 101 , à la différence structurelle près que la membrane 321 est, à son extrémité périphérique 321 A, jointe directement à la lèvre 314, suivant des considérations similaires à la jonction de la membrane 221 à la lèvre 214. Plus précisément, en variante à la forme de réalisation prévue pour la jonction entre la lèvre 214 et la membrane 221 du dispositif de bouchage 201 , la membrane 321 ne s'étend pas en saillie depuis une face intérieure de la lèvre 314, mais s'étend en saillie depuis une extrémité inférieure 314C de cette lèvre 314, comme bien visible sur la figure 12.  The closure device 301 also comprises a membrane 321 which is similar to the membrane 121 of the closure device 101, with the structural difference that the membrane 321 is, at its peripheral end 321 A, joined directly to the lip 314, according to similar considerations to the junction of the membrane 221 to the lip 214. More specifically, as an alternative to the embodiment provided for the junction between the lip 214 and the membrane 221 of the closure device 201, the membrane 321 does not extend protruding from an inner face of the lip 314, but protruding from a lower end 314C of the lip 314, as clearly visible in Figure 12.
De plus, il est prévu que le dispositif de bouchage 301 intègre un fluide 340 qui, comme montré sur les figures 12 à 14, remplit un volume libre V310 du bouchon 310. Ce volume libre V310 est délimité conjointement par la paroi de fermeture 31 1 , la lèvre 314 et la membrane 321 , en étant fermé par ces dernières de manière sensiblement hermétique. Ainsi, lorsque la membrane 321 passe de sa première configuration de déformation à sa seconde configuration de déformation, le fluide 340 est comprimé, par réduction du volume libre V310, et, une fois que la membrane 321 est dans la seconde configuration de déformation comme sur la figure 14, ce fluide 340 reste comprimé de sorte qu'il contraint la membrane 321 vers le bas. L'effet de ce fluide comprimé est, en quelque sorte, similaire à celui de l'entretoise 27 du dispositif de bouchage 1 , dans le sens où, en contraignant vers le bas la membrane 321 alors que cette dernière occupe sa seconde configuration de déformation, on renforce l'effort F' qu'applique cette membrane 321 à la lèvre 314 afin de presser cette lèvre contre le col 2. In addition, it is expected that the closure device 301 includes a fluid 340 which, as shown in Figures 12 to 14, fills a free volume V310 of the cap 310. This free volume V310 is delimited jointly by the closure wall 31 1 , the lip 314 and the membrane 321, being closed by them in a substantially hermetic manner. Thus, when the membrane 321 moves from its first deformation configuration to its second deformation configuration, the fluid 340 is compressed, by reducing the free volume V310, and once the membrane 321 is in the second deformation configuration as on 14, this fluid 340 remains compressed so that it forces the membrane 321 downwards. The effect of this compressed fluid is, in a way, similar to that of the spacer 27 of the closure device 1, in the sense that, in constraining the membrane 321 downwards while the latter occupies its second deformation configuration, the force F 'applied by this membrane 321 to the lip 314 is increased in order to press this lip against the collar 2.
A titre d'exemple non limitatif, le fluide 340 est un gaz. Par ailleurs, également à titre de disposition non limitative, le remplissage du volume libre V310 par le fluide 340, tel que l'injection de gaz, est réalisé au cours de la fabrication du bouchon 310, notamment au cours de son moulage.  By way of non-limiting example, the fluid 340 is a gas. Furthermore, also as a non-limiting disposition, the filling of the free volume V310 by the fluid 340, such as the injection of gas, is carried out during the manufacture of the plug 310, in particular during its molding.
On notera que, à titre avantageux, la présence, dans le volume libre V310 du bouchon 310, du fluide 340 tend à renforcer l'étanchéité à l'interface entre le dispositif de bouchage 301 et le col 2 du fait que la lèvre 314 s'appuie davantage sur ce col qu'en l'absence d'un tel fluide, sous réserve que le fluide soit présent dans un état comprimé, c'est-à-dire avec une pression au moins légèrement supérieure à la pression atmosphérique, et ce indépendamment de la configuration de déformation de la membrane 321 .  It will be noted that, advantageously, the presence, in the free volume V310 of the plug 310, of the fluid 340 tends to reinforce the seal at the interface between the closure device 301 and the neck 2 because the lip 314 s is more pressing on this neck than in the absence of such a fluid, provided that the fluid is present in a compressed state, that is to say with a pressure at least slightly above atmospheric pressure, and this independently of the deformation configuration of the membrane 321.
Divers aménagements et variantes aux dispositifs de bouchage décrits jusqu'ici sont par ailleurs envisageables. A titre d'exemples :  Various arrangements and variants to corking devices described so far are also possible. As examples:
- les différents modes de réalisation décrits précédemment peuvent être au moins partiellement combinés entre eux pour donner lieu à de nouveaux modes de réalisation ;  the various embodiments described above can be at least partially combined with one another to give rise to new embodiments;
- plutôt que d'être vissés, les bouchons 10, 1 10, 210 et/ou 310 peuvent être conçus en tant que bouchons « snapés » ; dans ce cas, leurs moyens de fixation amovible au col 2, prévus sur la face intérieure de leur jupe, comprennent un clip, continu ou interrompu sur la périphérie intérieure de la jupe, ce clip étant adapté pour se coincer, de manière amovible, sous un bossage saillant extérieur du corps 4 du col 2 ;  - rather than being screwed, the plugs 10, 1, 10, 210 and / or 310 may be designed as plugs "snap"; in this case, their detachable fastening means at the neck 2, provided on the inner face of their skirt, comprise a clip, continuous or interrupted on the inner periphery of the skirt, this clip being adapted to be wedged, removably, under an external projecting boss of the body 4 of the neck 2;
- à titre d'option, non représentée sur les figures, les bouchons 10, 1 10, 210 et/ou 310 intègrent des moyens ruptibles témoins de leur première ouverture, par exemple sous forme d'un bandeau annulaire centré sur l'axe X-X, qui est relié par des ponts frangibles à l'extrémité basse de leur jupe et qui, lors de la première ouverture du bouchon, est retenu à demeure autour du col 2 par un relief ad hoc de ce dernier ; le cas échéant, lors de la fabrication du bouchon, ces ponts frangibles sont réalisés par découpage de la jupe et/ou ce bandeau est partiellement replié vers l'intérieur du bouchon afin de former une butée qui, lors de la première ouverture du bouchon, coopère, notamment par appui axial, avec le relief précité du col ; dans tous les cas, les opérations de fabrication du bouchon, relatives à ces pontets et/ou à ce bandeau sont avantageusement réalisées de manière au moins partiellement concomitante à l'assemblage du dispositif de bouchage lorsque ce dernier inclut, en plus de son bouchon, un composant rapporté, tel que les dispositifs de bouchage 1 et 101 incluant le bouchon 10, 1 10 et l'insert 20, 120, ou encore tel que le dispositif de bouchage 201 incluant le bouchon 210 et la coiffe 230 ; - As an option, not shown in the figures, the plugs 10, 1 10, 210 and / or 310 incorporate ruptible means witnesses of their first opening, for example in the form of an annular strip centered on the axis XX which is connected by frangible bridges to the lower end of their skirt and which, at the first opening of the cap, is retained permanently around the neck 2 by an ad hoc relief thereof; if necessary, during the manufacture of the cap, these frangible bridges are made by cutting the skirt and / or this band is partially folded towards the inside of the cap to form a stop which, during the first opening of the cap, cooperates, in particular by axial support, with the aforementioned relief of the neck; in all cases, the plug manufacturing operations relating to these bridges and / or this strip are advantageously carried out at least partially concomitant with the assembly of the closure device when the latter includes, in addition to its plug, a reported component, such as capping 1 and 101 including the plug 10, 1 10 and the insert 20, 120, or such as the capping device 201 including the cap 210 and the cap 230;
- pour le cas où la membrane comprend des parties concentriques, comme pour les membranes 21 et 221 , plus de deux parties concentriques peuvent être prévues afin de faciliter et/ou amplifier la déformation de cette membrane, notamment en fonction du diamètre extérieur de la membrane ; et/ou  in the case where the membrane comprises concentric parts, as for the membranes 21 and 221, more than two concentric parts may be provided in order to facilitate and / or amplify the deformation of this membrane, in particular as a function of the outside diameter of the membrane ; and or
- le niveau axial, auquel l'extrémité périphérique de la membrane est jointe soit à la bague, soit directement à la lèvre, n'est pas limité à ceux considérés sur les figures ; en particulier, pour le cas où la membrane appartient à un insert tel que l'insert 20 ou 120, cette membrane peut s'étendre en saillie aussi bien depuis une face intérieure de la bague correspondante, comme pour la membrane 21 , que de l'extrémité basse de cette bague, comme pour la membrane 121 ; et pour le cas où la membrane est jointe directement à la lèvre du bouchon comme pour les bouchons 210 et 310, cette membrane peut s'étendre en saillie aussi bien depuis une face intérieure de la lèvre, comme pour la membrane 221 qui s'étend en saillie depuis la face intérieure 214B de la lèvre 214, que depuis l'extrémité inférieure de la lèvre, comme pour la membrane 321 qui s'étend en saillie depuis l'extrémité inférieure 314C de la lèvre 314.  the axial level, at which the peripheral end of the membrane is joined to either the ring or directly to the lip, is not limited to those considered in the figures; in particular, for the case where the membrane belongs to an insert such as the insert 20 or 120, this membrane can extend projecting as well from an inner face of the corresponding ring, as for the membrane 21, that the the lower end of this ring, as for the membrane 121; and for the case where the membrane is joined directly to the lip of the plug as for the plugs 210 and 310, this membrane can extend projecting as well from an inner face of the lip, as for the membrane 221 which extends protruding from the inner face 214B of the lip 214, as from the lower end of the lip, as for the membrane 321 which protrudes from the lower end 314C of the lip 314.

Claims

REVENDICATIONS
1 .- Dispositif de bouchage (1 ; 101 ; 201 ; 301 ) pour un col (2) d'un récipient (3), comprenant : 1 .- Closing device (1; 101; 201; 301) for a neck (2) of a container (3), comprising:
- une jupe (12 ; 212 ; 312), qui présente une forme globalement tubulaire, centrée sur un axe (X-X), et dont une face intérieure (12B) est adaptée pour se fixer de manière amovible à une face extérieure (4A) d'un col (2) d'un récipient (3), le dispositif de bouchage obturant le col lorsque la jupe est fixée à celui-ci ;  - a skirt (12; 212; 312), which has a generally tubular shape, centered on an axis (XX), and an inner face (12B) is adapted to be removably attached to an outer face (4A) d a neck (2) of a container (3), the closure device closing the neck when the skirt is attached thereto;
- une lèvre (14 ; 214 ; 314), qui présente une forme globalement annulaire, centrée sur l'axe (X-X), qui est agencée à l'intérieur de la jupe, et dont une face extérieure (14A) s'appuie de manière étanche contre une face intérieure (4B) du col (2) lorsque la jupe est fixée à ce col ; et  - a lip (14; 214; 314), which has a generally annular shape, centered on the axis (XX), which is arranged inside the skirt, and an outer face (14A) is supported by sealingly against an inner face (4B) of the neck (2) when the skirt is attached to this neck; and
- une membrane (21 ; 121 ; 221 ; 321 ) :  a membrane (21; 121; 221; 321):
- qui est agencée à l'intérieur de la jupe (12 ; 212 ; 312), en s'étendant globalement de manière transversale à l'axe (X-X),  - which is arranged inside the skirt (12; 212; 312), extending generally transversely to the axis (X-X),
- dont une extrémité périphérique (21 A ; 121 A ; 221 A ; 321 A) est liée à la lèvre (14 ; 214 ; 314) de manière fixe dans la direction de l'axe (X-X) en formant une première charnière souple (26) d'articulation relative entre la lèvre et la membrane, cette première charnière souple courant sur toute la périphérie de la lèvre globalement au niveau d'un plan géométrique (P) qui est transversal, voire perpendiculaire, à l'axe, et  a peripheral end (21A, 121A, 221A, 321A) is fixedly connected to the lip (14; 214; 314) in the direction of the axis (XX), forming a first flexible hinge ( 26) of relative articulation between the lip and the membrane, this first flexible hinge running over the entire periphery of the lip generally at a geometrical plane (P) which is transverse or even perpendicular to the axis, and
- qui est déformable par articulation de la première charnière souple entre une première configuration stable, dans laquelle l'intégralité de la membrane, excepté son extrémité périphérique (21 A ; 121 A ; 221 A ; 321 A), est disposée d'un premier côté du plan géométrique (P), qui est tourné, selon l'axe (X-X), à l'opposé d'un buvant (5) du col (2) lorsque la jupe (12 ; 212 ; 312) est fixée à ce col, et une seconde configuration stable, dans laquelle l'intégralité de la membrane, excepté son extrémité périphérique, est disposée d'un second côté du plan géométrique (P), qui est axialement opposé audit premier côté, le positionnement axial entre l'extrémité périphérique de la membrane et le plan géométrique étant inchangé lorsque la membrane passe entre les première et seconde configurations,  - Which is deformable by articulation of the first flexible hinge between a first stable configuration, in which the entire membrane, except its peripheral end (21A; 121A; 221A; 321A), is disposed of a first side of the geometric plane (P), which is rotated, along the axis (XX), opposite a rim (5) of the neck (2) when the skirt (12; 212; 312) is fixed to this collar, and a second stable configuration, in which the entire membrane, except its peripheral end, is disposed on a second side of the geometric plane (P), which is axially opposite to said first side, the axial positioning between the peripheral end of the membrane and the geometric plane being unchanged when the membrane passes between the first and second configurations,
caractérisé en ce que la membrane (21 ; 121 ; 221 ; 321 ) est conçue pour que, lorsque la jupe (12; 212; 312) est fixée au col (2) et que la lèvre (14 ; 214 ; 314) est appuyée contre ce col, la membrane passe de sa première configuration à sa seconde configuration sous l'effet d'une surpression à l'intérieur du récipient (3) puis la membrane, une fois qu'elle est dans la seconde configuration, presse la lèvre contre le col. characterized in that the diaphragm (21; 121; 221; 321) is designed so that when the skirt (12; 212; 312) is attached to the neck (2) and the lip (14; 214; 314) is supported against this neck, the membrane passes from its first configuration to its second configuration under the effect of an overpressure inside the container (3) and the membrane, once it is in the second configuration, press the lip against the collar.
2. - Dispositif de bouchage (1 ; 101 ; 201 ; 301 ) suivant la revendication 1 , caractérisé en ce que la membrane (21 ; 121 ; 221 ; 321 ) est conçue pour, lorsqu'elle est dans la seconde configuration, appliquer à la lèvre (14 ; 214 ; 314) un effort (F') qui est transversal et centrifuge par rapport à l'axe (X-X). 2. - Closing device (1; 101; 201; 301) according to claim 1, characterized in that the diaphragm (21; 121; 221; 321) is adapted to, when in the second configuration, apply to the lip (14; 214; 314) a force (F ') which is transverse and centrifugal with respect to the axis (XX).
3. - Dispositif de bouchage (1 ; 101 ; 201 ; 301 ) suivant l'une des revendications 1 ou 2, caractérisé en ce que la première charnière souple (26) articule la membrane (21 ; 121 ; 221 ; 321 ) et la lèvre (14 ; 214 ; 314) l'une par rapport à l'autre autour d'un axe géométrique d'articulation qui court autour de l'axe (X-X). 3. - Closing device (1; 101; 201; 301) according to one of claims 1 or 2, characterized in that the first flexible hinge (26) articulates the membrane (21; 121; 221; 321) and the lip (14; 214; 314) relative to each other about a geometric axis of articulation which runs around the axis (XX).
4. - Dispositif de bouchage (1 ; 201 ) suivant l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (21 ; 221 ) comprend au moins deux parties concentriques (23, 24) qui : 4. - Closing device (1; 201) according to any one of the preceding claims, characterized in that the membrane (21; 221) comprises at least two concentric parts (23, 24) which:
- sont sensiblement centrées sur l'axe (X-X),  - are substantially centered on the axis (X-X),
- sont jointes l'une à l'autre par une seconde charnière souple (25) courant autour de l'axe (X-X), et  - are joined to each other by a second flexible hinge (25) running about the axis (X-X), and
- incluent, d'une part, une partie centrale (23), qui, dans chacune des première et seconde configurations, est la plus éloignée axialement du plan géométrique (P), et, d'autre part, une partie périphérique (24), qui, à sa périphérie extérieure, forme l'extrémité périphérique (21 A ; 221 A) de la membrane.  - include, on the one hand, a central part (23), which, in each of the first and second configurations, is the furthest axially from the geometrical plane (P), and, on the other hand, a peripheral part (24) which, at its outer periphery, forms the peripheral end (21A, 221A) of the membrane.
5. - Dispositif de bouchage (1 ; 201 ) suivant la revendication 4, caractérisé en ce que les parties concentriques (23, 24) de la membrane (21 ; 221 ) sont jointes en étant venues de matière ensemble. 5. - Closing device (1; 201) according to claim 4, characterized in that the concentric portions (23, 24) of the membrane (21; 221) are joined by being material together.
6. - Dispositif de bouchage (101 ; 301 ) suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que la membrane (121 ; 321 ) est constituée d'un voile (128), qui, en dehors de l'extrémité périphérique (121 A ; 321 A) de la membrane, présente une épaisseur sensiblement homogène et qui se déforme entre les première et seconde configurations par cintrage continu. 6. - Closing device (101; 301) according to any one of claims 1 to 3, characterized in that the membrane (121; 321) consists of a web (128), which, apart from the peripheral end (121 A; 321 A) of the membrane, has a substantially homogeneous thickness and which deforms between the first and second configurations by continuous bending.
7. - Dispositif de bouchage (1 ; 101 ; 301 ) suivant l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de bouchage comprend en outre une paroi de fermeture (1 1 ; 31 1 ) : 7. - Closing device (1; 101; 301) according to any one of the preceding claims, characterized in that the closure device further comprises a closure wall (1 1; 31 1):
- qui présente une forme globalement discoïdale, sensiblement centrée sur l'axe - which has a generally discoidal shape, substantially centered on the axis
(X-X) et pleine, - depuis laquelle s'étendent axialement la jupe (12 ; 312) et la lèvre (14 ; 314), et(XX) and full, - from which axially extend the skirt (12; 312) and the lip (14; 314), and
- qui s'étend à la fois à l'aplomb axial du buvant (5) du col (2) et en travers de toute l'ouverture du col lorsque la jupe (12 ; 312) est fixée au col. - Which extends both to the axial plumb of the rim (5) of the neck (2) and across the entire opening of the neck when the skirt (12; 312) is attached to the neck.
8.- Dispositif de bouchage (1 ) suivant la revendication 7, caractérisé en ce que la membrane (21 ) est pourvue, sur sa face axialement tournée vers la paroi de fermeture (1 1 ), d'au moins une entretoise (27) qui, lorsque la membrane passe de la première configuration à la seconde configuration, se rapproche axialement de la paroi de fermeture, jusqu'à buter contre cette paroi de fermeture une fois que la membrane est dans la seconde configuration de manière à contraindre la membrane en direction du plan géométrique (P). 8.- Closing device (1) according to claim 7, characterized in that the membrane (21) is provided on its face axially facing the closure wall (1 1), at least one spacer (27) which, when the membrane passes from the first configuration to the second configuration, approaches axially to the closing wall, until it abuts against this closing wall once the membrane is in the second configuration so as to constrain the membrane by direction of the geometric plane (P).
9. - Dispositif de bouchage (301 ) suivant l'une des revendications 7 ou 8, caractérisé en ce que la membrane (321 ), la lèvre (314) et la paroi de fermeture (31 1 ) délimitent entre elles un volume libre (V310), qui est fermé de manière hermétique et qui est rempli d'un fluide (340) de sorte que le fluide contenu dans le volume libre est comprimé lorsque la membrane passe de la première configuration à la seconde configuration, puis contraint la membrane en direction du plan géométrique (P) une fois que la membrane est dans la seconde configuration. 9. - Closing device (301) according to one of claims 7 or 8, characterized in that the membrane (321), the lip (314) and the closure wall (31 1) delimit between them a free volume ( V310), which is hermetically closed and filled with a fluid (340) so that the fluid contained in the free volume is compressed as the membrane passes from the first configuration to the second configuration, and then constrains the membrane to direction of the geometric plane (P) once the membrane is in the second configuration.
10. - Dispositif de bouchage (201 ) suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de bouchage comprend en outre une couronne (21 1 ) de jonction entre la jupe (212) et la lèvre (214), laquelle couronne : 10. - Closing device (201) according to any one of claims 1 to 6, characterized in that the closure device further comprises a ring (21 1) connecting the skirt (212) and the lip (214). ), which crown:
- présente une forme globalement discoïdale, centrée sur l'axe (X-X) et traversée, dans sa région centrale, par un trou (21 1 A) qui est disposé à l'aplomb axial de la membrane (221 ),  has a generally discoidal shape, centered on the axis (X-X) and traversed, in its central region, by a hole (21 1 A) which is arranged at the axial plumb with the membrane (221),
- depuis laquelle s'étendent axialement la jupe (212) et la lèvre (214), et  - from which axially extend the skirt (212) and the lip (214), and
- qui s'étend à l'aplomb axial du buvant (5) du col (2) lorsque la jupe est fixée au col.  - Which extends to the axial plumb of the rim (5) of the neck (2) when the skirt is attached to the neck.
1 1 . - Dispositif de bouchage (201 ) suivant la revendication 10, caractérisé en ce que le dispositif de bouchage comprend en outre une coiffe (230) de fermeture, qui est rapportée et fixée au trou (21 1 A) de la couronne (21 1 ). 1 1. - Closing device (201) according to claim 10, characterized in that the closure device further comprises a closure cap (230), which is attached and fixed to the hole (21 1 A) of the ring (21 1). .
12. - Dispositif de bouchage (1 ; 101 ) suivant l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de bouchage comprend un insert (20 ;12. - Closing device (1; 101) according to any one of the preceding claims, characterized in that the closure device comprises an insert (20;
120) qui inclut à la fois la membrane (21 ; 121 ) et une bague (22 ; 122) : 120) which includes both the diaphragm (21; 121) and a ring (22; 122):
- qui présente une forme globalement annulaire, centrée sur l'axe (X-X) et entourant la membrane,  - which has a generally annular shape, centered on the axis (X-X) and surrounding the membrane,
- à laquelle est jointe l'extrémité périphérique (21 A ; 121 A) de la membrane, et - to which is joined the peripheral end (21 A; 121 A) of the membrane, and
- qui est agencée et fixée à l'intérieur de la lèvre (14). - which is arranged and fixed inside the lip (14).
13. - Dispositif de bouchage (1 ; 101 ) suivant la revendication 12, caractérisé en ce que la bague (22 ; 122) et l'extrémité périphérique (21 A ; 121 A) de la membrane (21 ;13. - Closing device (1; 101) according to claim 12, characterized in that the ring (22; 122) and the peripheral end (21 A; 121 A) of the membrane (21;
121 ) sont venues de matière ensemble. 121) came from matter together.
14. - Dispositif de bouchage (201 ; 301 ) suivant l'une quelconque des revendications 1 à 1 1 , caractérisé en ce que l'extrémité périphérique (221 A ; 321 A) de la membrane (221 ; 321 ) est jointe à la lèvre (214 ; 214) de manière que la membrane s'étend en saillie soit depuis une face intérieure (214B) de la lèvre (214), soit depuis une extrémité inférieure (314C) de la lèvre (314), qui est tournée, selon l'axe (X-X), à l'opposé du buvant (5) du col (2) lorsque la jupe est fixée au col et que la lèvre est appuyée contre ce col. 14. - Closing device (201; 301) according to any one of claims 1 to 1 1, characterized in that the peripheral end (221 A; 321 A) of the membrane (221; 321) is joined to the lip (214; 214) so that the membrane protrudes either from an inner face (214B) of the lip (214) or from a lower end (314C) of the lip (314) which is rotated, along the axis (XX), opposite the rim (5) of the neck (2) when the skirt is attached to the neck and the lip is pressed against this neck.
15. - Dispositif de bouchage (201 ; 301 ) suivant la revendication 14, caractérisé en ce que la membrane (221 ; 321 ) et la lèvre (214 ; 314) sont jointes en étant venues de matière ensemble. 15. - Closing device (201; 301) according to claim 14, characterized in that the membrane (221; 321) and the lip (214; 314) are joined by being integral material.
EP17704024.3A 2016-02-15 2017-02-14 Sealing device for a container neck Withdrawn EP3416898A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1651197A FR3047728B1 (en) 2016-02-15 2016-02-15 CLOSURE DEVICE FOR A CONTAINER COLLAR
PCT/EP2017/053196 WO2017140637A1 (en) 2016-02-15 2017-02-14 Sealing device for a container neck

Publications (1)

Publication Number Publication Date
EP3416898A1 true EP3416898A1 (en) 2018-12-26

Family

ID=55542989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17704024.3A Withdrawn EP3416898A1 (en) 2016-02-15 2017-02-14 Sealing device for a container neck

Country Status (8)

Country Link
US (1) US20200062458A1 (en)
EP (1) EP3416898A1 (en)
CN (1) CN108602591A (en)
BR (1) BR112018014554A2 (en)
CA (1) CA3014829A1 (en)
FR (1) FR3047728B1 (en)
MX (1) MX2018009168A (en)
WO (1) WO2017140637A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11903900B2 (en) * 2018-10-03 2024-02-20 Takeda Pharmaceutical Company Limited Packaging for multiple containers
FR3096969B1 (en) * 2019-06-07 2021-06-25 Albea Services Set for closing a tube and tube including this set
WO2021189127A1 (en) * 2020-03-24 2021-09-30 Husky Injection Molding Systems Ltd. Closure device for a container

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE766814A (en) * 1971-05-06 1971-10-01 Tavernier Herwig R L SYNTHETIC SCREW CAP.
IT1262644B (en) * 1993-07-26 1996-07-04 Bormioli Metalplast Spa CAPSULE FOR BOTTLES CONTAINING LIQUID LIQUIDS.
US5458252A (en) * 1994-06-03 1995-10-17 American Precision Plastics Corporation Invertible, pressure-responsive sealing cap
US5769263A (en) * 1997-01-21 1998-06-23 Alcoa Closure Systems International, Inc. Compartmentalized top cover promotional closure
JP3750371B2 (en) * 1998-09-29 2006-03-01 凸版印刷株式会社 Inner parts for heat-resistant pressure cap
CN2368800Y (en) * 1999-05-24 2000-03-15 天津顶盛塑料制品有限公司 Stopper with inside unit
CN2534114Y (en) * 2001-12-25 2003-02-05 舒建平 Bottle cap for hot filling closure
FR2908746B1 (en) 2006-11-20 2009-01-09 Tetra Laval Holdings & Finance CAP FOR A COLLAR OF A CONTAINER AND METHOD OF MANUFACTURING SUCH A PLUG
FR2987607B1 (en) 2012-03-05 2015-07-24 Tetra Laval Holdings & Finance CAP FOR A COLLAR OF CONTAINER
EP2957522B1 (en) 2014-06-17 2017-05-03 Sidel Participations Container provided with a curved invertible diaphragm

Also Published As

Publication number Publication date
CA3014829A1 (en) 2017-08-24
FR3047728B1 (en) 2019-08-09
BR112018014554A2 (en) 2018-12-11
MX2018009168A (en) 2018-11-19
WO2017140637A1 (en) 2017-08-24
US20200062458A1 (en) 2020-02-27
FR3047728A1 (en) 2017-08-18
CN108602591A (en) 2018-09-28

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