EP4298028A1 - Device for sealing a fluid product vessel - Google Patents

Device for sealing a fluid product vessel

Info

Publication number
EP4298028A1
EP4298028A1 EP22710679.6A EP22710679A EP4298028A1 EP 4298028 A1 EP4298028 A1 EP 4298028A1 EP 22710679 A EP22710679 A EP 22710679A EP 4298028 A1 EP4298028 A1 EP 4298028A1
Authority
EP
European Patent Office
Prior art keywords
axial
radial
neck
fixing
cover
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.)
Pending
Application number
EP22710679.6A
Other languages
German (de)
French (fr)
Inventor
David Fabien
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.)
Aptar France SAS
Original Assignee
Aptar France SAS
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 Aptar France SAS filed Critical Aptar France SAS
Publication of EP4298028A1 publication Critical patent/EP4298028A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D51/00Closures not otherwise provided for
    • B65D51/002Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, 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
    • B65D41/32Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/58Caps or cap-like covers combined with stoppers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D45/00Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/30Annular members, e.g. with snap-over action or screw-threaded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D51/00Closures not otherwise provided for
    • B65D51/18Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D55/00Accessories for container closures not otherwise provided for
    • B65D55/02Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/06Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D55/00Accessories for container closures not otherwise provided for
    • B65D55/02Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/06Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
    • B65D55/08Annular elements encircling container necks
    • B65D55/0863Plastic snap-on cap-like collars having frangible parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2251/00Details relating to container closures
    • B65D2251/0003Two or more closures
    • B65D2251/0006Upper closure
    • B65D2251/0015Upper closure of the 41-type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2251/00Details relating to container closures
    • B65D2251/0003Two or more closures
    • B65D2251/0068Lower closure
    • B65D2251/009Lower closure of the 51-type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • B65D2401/25Non-metallic tear-off strips

Definitions

  • the present invention relates to a device for closing a fluid reservoir, for example a bottle containing a pharmaceutical fluid product.
  • a preferred field of application of the present invention is that of stoppers that can be pierced using a needle to remove all or part of the fluid contained in the reservoir.
  • a closure device of this type comprises a cap made of relatively flexible material, such as an elastomer, which is inserted by force into the neck of the reservoir.
  • the cap is pushed into its closed position, in which it closes off the reservoir in a leaktight manner, and a metal cap is mounted, in particular crimped, around the cap to fix it to the neck of the reservoir.
  • a cap made of metal generally aluminum
  • the use of a cap made of metal is likely to generate metal particles during the crimping of the cap on the neck of the reservoir, potentially harmful for the fluid contained in the reservoir.
  • the use of room metal is disadvantageous in terms of recycling and respect for the environment.
  • the removable protective cover can generally be removed and put back in place easily, so that it is impossible to know whether or not product has already been taken from the reservoir. The integrity of the fluid contained in the reservoir is also not guaranteed.
  • this type of closure device does not allow assembly at high speeds, using for example a machine that can simultaneously assemble several tens of closure devices.
  • the object of the present invention is to remedy the aforementioned drawbacks.
  • the object of the present invention is in particular to provide a closure device which guarantees the integrity of the fluid contained in the reservoir until it is used.
  • Another object of the present invention is to provide a closure device which includes a tamper-proof first-use indicator.
  • Another object of the present invention is to provide a closure device which makes it possible to use a stopper provided with a coating on the face in contact with the fluid product.
  • the present invention also aims to provide a closure device which is simple and inexpensive to manufacture and assemble.
  • the present invention therefore relates to a closure device for a fluid reservoir comprising a neck provided with an upper axial edge, said closure device comprising:
  • a plug comprising a radial plate and an axial barrel, said axial barrel penetrating inside said neck during assembly, said plug comprising sealing means for sealing with said reservoir,
  • said fixing ring comprising a cylindrical axial sleeve provided on the upper side with a radial flange extending radially inwards and comprising a central opening, said cylindrical axial sleeve comprising on the lower side of the first attachment means for attachment to said neck of said tank,
  • a cover comprising a radial disc and a cylindrical axial casing extending axially downwards from said radial disc, said cover comprising second fixing means
  • a locking element comprising a cylindrical axial wall and complementary fixing means cooperating in the assembled state with said second fixing means of said lid, said axial wall comprising on part of its periphery a tearable tab defined between two grooves forming bridges of thin material, said tongue comprising on one side a gripping part and ending on the opposite side with a flared part, so that at the end of tearing, said axial wall opens over its entire height, thus allowing to remove said blocking element from said obturation device.
  • said axial shaft of said plug has on its outer surface at least one sealing bead which cooperates with the inside of said neck of said tank to guarantee the tight sealing of said tank.
  • said radial plate of said stopper has an outer diameter greater than the outer diameter of said axial shaft, and comprises at least one annular projection extending downwards which, in the closed position, cooperates with said upper axial edge of said neck.
  • said annular projection is peripheral and is, when assembling said closure device on said neck of said reservoir, crushed on said upper axial edge of said neck to achieve sealing with said reservoir.
  • said radial plate includes a central stitching zone defined inside an axial ring.
  • the radially outer edge of said axial ring is conical, widening upwards.
  • said radial flange of said fixing ring is positioned on said radial plate of said plug, said central opening receiving said axial ring and said tapping zone of said plug.
  • the radial edge of said central opening snaps onto said conical radially outer edge of said axial ring.
  • said first means for fixing said fixing ring are snap-fastening means, comprising at least one radial profile extending radially inwards.
  • said first fixing means comprise a single radial profile which extends over the entire periphery of said cylindrical axial sleeve.
  • the internal diameter of said axial casing of said cover is identical to or very slightly greater than the external diameter of said axial sleeve of said fixing ring, so that in the assembled state of the closure device, said axial casing is positioned around said axial sleeve with little or no clearance between them.
  • said second means for fixing said cover comprise one or more projection(s) extending radially outwards.
  • said complementary fastening means of said locking element comprise one or more profiles extending radially inwards, said profiles snapping onto said one or more projection(s) forming said second fastening means of said cover.
  • said axial wall of said locking element comprises, on its lower axial edge, an annular radial wall extending radially inwards, the radially internal edge of said annular radial wall having a diameter smaller than the external diameter of said cylindrical axial sleeve of said fixing ring, and less than the outer diameter of said tank.
  • said device is devoid of metal.
  • the present invention also relates to an assembly comprising a fluid reservoir comprising a neck and a closure device as described above, for fixing and holding a stopper on said neck.
  • Figure 1 is a schematic cut-out perspective view of a closure device fixed to a tank, according to an advantageous embodiment
  • FIG. 1 is a schematic view in vertical section of the closure device of Figure 1
  • Figure 3 is a schematic cut-out and exploded perspective view of the closure device of Figure 2
  • Figure 4 is a view similar to that of Figure 3, in exploded perspective,
  • Figure 5 is a schematic cut-out perspective view of the fastening ring of the closure device of Figure 2
  • Figure 6 is a schematic cut-out perspective view of the cap of the closure device of Figure 2
  • Figure 7 is a schematic perspective view of the blocking element of the closure device of Figure 2
  • FIG. 8 is a schematic cut-out perspective view from below of the cover of the closure device of FIG. 2,
  • Figure 9 is a schematic exploded perspective view of the closure device of Figure 1, after removal of the locking element and the cover,
  • FIG. 10 is a schematic view in vertical section of the closure device of FIG. 2 during assembly, according to an advantageous variant embodiment.
  • Figures 11 and 12 are schematic views in vertical section of the closure device of Figure 2, respectively before and after assembly on a tank.
  • Reservoir 1 may in particular be in the form of a bottle.
  • Reservoir 1 contains a fluid product, in particular of the pharmaceutical type.
  • a closure device is fixed to the neck 2 of the tank 1.
  • This closure device comprises a plug 10, a fixing ring 20, a lid 30 and a blocking element 40.
  • the stopper 10 provided to seal off the reservoir 1 is preferably made of an elastically deformable material, such as for example rubber or any other suitable elastomeric material.
  • This stopper 10 comprises a radial plate 11 and an axial shaft 12 which is approximately cylindrical. In the closed position, the axial shaft 12 penetrates inside said neck 2.
  • the cap 10 includes sealing means to achieve sealing with the reservoir.
  • the axial barrel 12 comprises on its outer surface at least one peripheral sealing bead 13 which cooperates with the inside of the neck 2 of the tank 1 to guarantee the sealed closure of the tank.
  • the radial plate 11 has an outer diameter greater than the outer diameter of the axial shaft 12, and comprises at its radially outer edge an annular projection 14 extending downwards.
  • this annular projection 14 will deform and ensure a certain spring effect as well as dimensional compensation, to optimize assembly and/or sealing in the assembled state. .
  • the annular projection 14 is peripheral and is, during assembly of the closure device on the neck 2 of the reservoir 1, crushed on the upper axial edge 3 of the said neck 2 to produce sealing with tank 1 .
  • the sealing bead 13 is no longer mandatory, and could either be completely omitted, or replaced by several parts of beads separated from each other and distributed over the periphery of the axial shaft 12, without sealing function
  • the radial plate 11 includes a tapping zone 15 intended to be pierced by a suitable device, such as a syringe, to withdraw all or part of the fluid contained in the reservoir 1 .
  • This stitching zone 15 is preferably central and defined inside an axial ring 16, as can be seen in particular in FIG. 6.
  • the radially outer edge of said axial ring 16 is slightly conical, flaring upwards .
  • the internal surface of plug 10 which comes into contact with the fluid contained in reservoir 1 may be covered with a coating, in particular a thin film of ETFE (ethylene tetrafluoroethylene), in order to limit interactions between plug 10 and the fluid product.
  • ETFE ethylene tetrafluoroethylene
  • the fixing ring 20 is provided to fix and hold the stopper 10 on the neck 2 of the reservoir 1 .
  • This fixing ring 20 comprises a cylindrical axial sleeve 21 provided on the upper side with a radial flange 22 extending radially inwards and comprising a central opening 23.
  • said radial flange 22 is positioned on radial plate 11 of plug 10, with opening 23 receiving axial ring 16 and stitching zone 15 of plug 10.
  • the radial edge of said central opening 23 snaps onto the radially outer edge of said axial ring 16 when the latter is slightly conical.
  • the cylindrical axial sleeve 21 comprises first fixing means 25, in particular by snap-fastening, to be fixed on the neck 2 of the reservoir 1 .
  • first fixing means 25 comprise a radial profile extending radially inwards. In the example shown, this radial profile is peripheral, but it could as a variant comprise several lugs distributed over the periphery. Other fastening means on the neck 2 of the reservoir 1 can also be envisaged.
  • the cover 30 comprises a radial disc 31 which, in the assembled state, is positioned on the upper surface of the radial flange 22 of the fixing ring 20, as can be seen in particular in FIGS. 1 and 2.
  • the cover 30 also comprises a cylindrical axial casing 32 extending axially downwards from said radial disc 31, the internal diameter of said axial casing 32 being identical to or very slightly greater than the external diameter of the axial sleeve 21 of the fixing ring. 20.
  • said axial casing 32 is positioned around the axial sleeve 21 with little or no clearance between them.
  • the axial casing 32 only extends over a small part of the height of the axial sleeve 21 .
  • the axial casing 32 comprises second fixing means 33, such as one or more projection(s) extending radially outwards, which will be described in more detail below.
  • second fixing means 33 are advantageously provided at the lower axial edge of the axial casing 32.
  • the lower surface of the radial disc 31 comprises a central recess 35 delimited by an annular axial projection 36, said central recess 35 being found in the assembled state above the stitching zone 15 of the plug 10.
  • the annular axial projection 36 is connected to the axial casing 32 by a plurality of radial bridges 37 distributed around the periphery. In this implementation, it is therefore the annular axial projection 36 and the radial bridges 37 which are, in the assembled state, in contact with the upper surface of the radial flange 22 of the fixing ring 20.
  • the locking element 40 comprises a cylindrical axial wall 41 whose internal diameter is greater than the external diameter of the axial casing 32 and that of the second fixing means 33 of the cover 30.
  • the axial wall 41 comprises complementary fixing means 43, advantageously at its upper axial edge.
  • these complementary fixing means comprise one or more profiles 43 extending radially inwards, with the internal diameter of said profiles 43 which is identical to or slightly greater than the external diameter of the axial casing. 32 but less than the outer diameter of the projections 33 of the cover 30.
  • the profiles 43 of the locking element 40 snap onto the projection(s) 33 of the cover 30.
  • the outer shape of the profiles 43 and projections 33 can be produced in the conventional manner, with inclined planes sliding one over the other during the assembly phase, and radial surfaces forming snap-fastening stops after assembly.
  • the cover 30 comprises several separate projections 33, for example two or three, distributed over the periphery, but a single projection 33 extending radially outwards over the entire periphery could also be envisaged.
  • the blocking element 40 comprises a single profile 43 extending radially inwards over the entire periphery, but several separate profiles 43 distributed over the periphery could also be envisaged.
  • the second fixing means 33 of the cover 30 and the complementary fixing means 43 of the blocking element 40 could be made differently, without necessarily forming a snap.
  • the cover 30 and the blocking element 40 then form a unitary sub-assembly.
  • Other alternative fixings are also possible.
  • the axial wall 41 comprises on part of its periphery a tearable tab 42 defined between two grooves 44, 45 which form bridges of thin material.
  • This tab 42 has a gripping part 46 that the user can grasp to tear the tab over part of the periphery of the blocking element 40.
  • the tearable tab 42 ends on the side opposite to the gripping part 46 by a flared part 42', so that at the end of tearing, the axial wall 41 opens over its entire height, thus making it possible to remove the blocking element 40 from the closure device.
  • said axial wall 41 On its lower axial edge, said axial wall 41 comprises an annular radial wall 49 extending radially inwards.
  • the radially inner edge of said annular radial wall 49 has a diameter smaller than the outer diameter of cylindrical axial sleeve 21 of fixing ring 20.
  • this annular radial wall 49 In the assembled state, this annular radial wall 49 is positioned axially under said cylindrical axial sleeve 21 , thus preventing withdrawal of the locking element 40 by upward axial traction.
  • the radially internal edge of the annular radial wall 49 also has a diameter smaller than the external diameter of the reservoir 1 .
  • the cap 10 makes the seal with the neck 2 of the tank 1, the fixing ring 20 fixes and maintains said cap 10 in its sealing position, the cover 30 protects the cap 10 and prevents access to its tapping zone 15, and the element of It blocking 40 prevents the removal of the cover 30 while being maintained in the blocking position on the one hand by the snap-fastening with the cover 30 and on the other hand by the axial blocking carried out by the fixing ring 20 at the level of the wall.
  • annular radial 49 In the assembled state, the closure device therefore forms an unremovable sub-assembly.
  • the fixing ring 20 is first assembled on the stopper 10, advantageously with a snap-fastening of one on the other at the level of the central opening 23. Then, in In the example of FIG. 10, the cover 30 is assembled on the fastening ring 20 from above, and then the locking element 40 snaps onto the cover 30 from below, according to the arrow F1.
  • the stopper/fixing ring unit can first be placed in the blocking element 40, then the cover 30 can be snapped on from above.
  • the assembly of the cover 30 and of the blocking element 40 around the plug-fixing ring unit can be done in a single step, the plug-fixing ring unit then being sandwiched between the cover 30 and the blocking element 40.
  • the assembly of the closure device on the neck 2 of the reservoir 1 is advantageously done by axial thrust downwards of the closure device, according to the arrow F2 in FIG.
  • the presence of the central recess 35 in the lid 30 guarantees that during assembly, all of the force F2 exerted on the lid 30 is transmitted to the fixing ring 20, without direct interaction between the lid 30 and the cap 10.
  • said at least one sealing bead 13 are chosen so that sealing is guaranteed in the assembled state, without generating excessive forces during assembly. This makes it possible to use an assembly machine with baskets or nests that can simultaneously assemble several tens of devices, for example a hundred.
  • the closure device After assembly of the closure device on the tank, the closure device includes a tamper-proof first use indicator. Indeed, as long as the tear-off tab 42 is not torn, and the blocking element 40 removed, the cover 30 cannot be removed. The contents of the tank are therefore perfectly protected. After removal of the blocking element 40, the cover 30 can also be removed. On the other hand, it is then no longer possible to replace another locking element 40, because this assembly must necessarily be done before assembly on the tank 1.
  • the internal diameter of the annular radial wall 49 being smaller than the external diameter of the reservoir 1, it is not possible to assemble a blocking element 40 over the reservoir 1.
  • the internal diameter of the annular radial wall 49 being smaller than the external diameter of the cylindrical axial sleeve 21 of the ring 20, it is not possible to assemble a locking element 40 over the fixing ring 20.
  • variant embodiments are possible, without departing from the scope of the present invention, as defined by the appended claims.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

Device for sealing a vessel (1), comprising: - a stopper (10) for sealing the vessel (1), the stopper (10) comprising sealing means (13; 14) for sealing the vessel (1), - an attachment ring (20) for attaching the stopper (10) to the vessel; (1), the ring (20) comprising a sleeve (21) provided with a radial flange (22) comprising a central opening (23), and first attachment means (25) to be attached to the vessel (1), - a cover (30) comprising a radial disc (31) and second attachment means (33), - a blocking element (40) comprising an axial wall (41) and complementary attachment means (43) engaging in the assembled state with the second means (33) for attaching the cover (30), the axial wall (41) comprising, on one portion of its periphery, a tearable tab (42) defined between two grooves (44, 45) forming bridges of thin material, the tab (42) comprising, on one side, a gripping portion (46) and ending, on the opposite side, with a flared portion (42') such that, once torn, the axial wall (41) opens out along the entire height thereof, thus making it possible to remove the blocking element (40) from the sealing device.

Description

Dispositif d'obturation d'un réservoir de produit fluide Closing device for a fluid reservoir
La présente invention concerne un dispositif d'obturation d'un réservoir de produit fluide, par exemple d’un flacon contenant un produit fluide pharmaceutique. Un domaine d’application privilégié de la présente invention est celui des bouchons pouvant être percés à l’aide d’une aiguille pour prélever tout ou partie du produit fluide contenu dans le réservoir. The present invention relates to a device for closing a fluid reservoir, for example a bottle containing a pharmaceutical fluid product. A preferred field of application of the present invention is that of stoppers that can be pierced using a needle to remove all or part of the fluid contained in the reservoir.
En général, un dispositif d'obturation de ce type comprend un bouchon en matériau relativement souple, tel qu'un élastomère, qui est inséré à force dans le col du réservoir. Lors de l'assemblage, le bouchon est poussé dans sa position de fermeture, dans laquelle il obture le réservoir de manière étanche, et une capsule métallique est montée, notamment sertie, autour du bouchon pour le fixer sur le col du réservoir. In general, a closure device of this type comprises a cap made of relatively flexible material, such as an elastomer, which is inserted by force into the neck of the reservoir. During assembly, the cap is pushed into its closed position, in which it closes off the reservoir in a leaktight manner, and a metal cap is mounted, in particular crimped, around the cap to fix it to the neck of the reservoir.
Cette mise en œuvre connue implique plusieurs inconvénients. This known implementation involves several drawbacks.
Ainsi, si la capsule n'est pas trouée pour permettre le perçage du bouchon pour prélever le fluide contenu dans le réservoir, il faut retirer complètement cette capsule avant utilisation, ce qui peut être difficile. Ceci implique aussi un risque de retrait accidentel du bouchon, avec de ce fait un risque de perte du fluide contenu dans le réservoir. Thus, if the capsule is not perforated to allow the drilling of the stopper to withdraw the fluid contained in the reservoir, this capsule must be completely removed before use, which can be difficult. This also involves a risk of accidental removal of the cap, with thereby a risk of loss of the fluid contained in the reservoir.
D'un autre côté, si la capsule est trouée pour permettre un perçage du bouchon, cette partie non recouverte par la capsule n'est pas protégée, notamment pendant le transport et le stockage, avec par conséquent un risque pour l'intégrité du fluide contenu dans le réservoir. Dans ce cas, il est quasiment impossible de savoir si le bouchon a déjà été percé ou non, avec par conséquent une incertitude sur le contenu du réservoir. On the other hand, if the capsule is perforated to allow drilling of the cap, this part not covered by the capsule is not protected, in particular during transport and storage, with consequently a risk for the integrity of the fluid. contained in the tank. In this case, it is almost impossible to know whether the cap has already been pierced or not, with consequently uncertainty about the contents of the tank.
Par ailleurs, l'utilisation d'une capsule en métal, généralement en aluminium, est susceptible de générer des particules métalliques lors du sertissage de la capsule sur le col du réservoir, potentiellement néfastes pour le fluide contenu dans le réservoir. Plus généralement, l'utilisation de pièce métallique est désavantageuse en termes de recyclage et de respect de l'environnement. Furthermore, the use of a cap made of metal, generally aluminum, is likely to generate metal particles during the crimping of the cap on the neck of the reservoir, potentially harmful for the fluid contained in the reservoir. More generally, the use of room metal is disadvantageous in terms of recycling and respect for the environment.
Pour surmonter ces inconvénients, il a été proposé d'utiliser une bague de fixation en plastique pour fixer et maintenir le bouchon sur le réservoir, avec un élément de blocage assemblé autour de la bague pour maintenir sa fixation, et un couvercle disposé de manière amovible sur la bague ou sur l'élément de blocage, pour protéger le bouchon jusqu'à l'utilisation du dispositif. Le document WO2017001459 décrit un dispositif de ce type. To overcome these drawbacks, it has been proposed to use a plastic fixing ring to fix and hold the cap on the tank, with a blocking element assembled around the ring to hold its fixing, and a cover arranged in a removable manner. on the ring or on the blocking element, to protect the cap until the device is used. The document WO2017001459 describes a device of this type.
Les dispositifs de ce type présentent également des inconvénients.Devices of this type also have drawbacks.
Ainsi, le couvercle de protection amovible peut généralement être retiré et remis en place aisément, de sorte qu'il est impossible de savoir si du produit a déjà été prélevé ou non depuis le réservoir. L'intégrité du fluide contenu dans le réservoir n'est pas non plus garantie. Thus, the removable protective cover can generally be removed and put back in place easily, so that it is impossible to know whether or not product has already been taken from the reservoir. The integrity of the fluid contained in the reservoir is also not guaranteed.
De plus, la complexité de ce type de dispositif d'obturation ne permet pas un assemblage à hautes cadences, en utilisant par exemple une machine pouvant assembler simultanément plusieurs dizaines de dispositifs d'obturation. In addition, the complexity of this type of closure device does not allow assembly at high speeds, using for example a machine that can simultaneously assemble several tens of closure devices.
Le document DE102017127313 décrit un autre dispositif de l'état de la technique. Document DE102017127313 describes another prior art device.
La présente invention a pour but de remédier aux inconvénients susmentionnés. The object of the present invention is to remedy the aforementioned drawbacks.
La présente invention a notamment pour but de fournir un dispositif d'obturation qui garantit l'intégrité du fluide contenu dans le réservoir jusqu'à son utilisation. The object of the present invention is in particular to provide a closure device which guarantees the integrity of the fluid contained in the reservoir until it is used.
La présente invention a aussi pour but de fournir un dispositif d'obturation qui comporte un témoin de premier usage infalsifiable. Another object of the present invention is to provide a closure device which includes a tamper-proof first-use indicator.
La présente invention a également pour but de fournir un dispositif d'obturation qui permet d'utiliser un bouchon pourvu d'un revêtement sur la face en contact avec le produit fluide. Another object of the present invention is to provide a closure device which makes it possible to use a stopper provided with a coating on the face in contact with the fluid product.
La présente invention a également pour but de fournir un dispositif d'obturation qui est totalement dépourvu de métal. La présente invention a aussi pour but de fournir un dispositif d'obturation qui peut être assemblé à hautes cadences, en particulier dans une machine d'assemblage pouvant assembler plusieurs dizaines, par exemple cent, dispositifs simultanément. The present invention also aims to provide a closure device which is completely free of metal. Another object of the present invention is to provide a closure device which can be assembled at high speeds, in particular in an assembly machine which can assemble several tens, for example one hundred, devices simultaneously.
La présente invention a aussi pour but de fournir un dispositif d'obturation qui est simple et peu coûteux à fabriquer et à assembler. The present invention also aims to provide a closure device which is simple and inexpensive to manufacture and assemble.
La présente invention a donc pour objet un dispositif d'obturation d'un réservoir de produit fluide comportant un col pourvu d'un bord axial supérieur, ledit dispositif d'obturation comportant : The present invention therefore relates to a closure device for a fluid reservoir comprising a neck provided with an upper axial edge, said closure device comprising:
- un bouchon comportant un plateau radial et un fût axial, ledit fût axial pénétrant à l'intérieur dudit col lors de l'assemblage, ledit bouchon comportant des moyens d'étanchéité pour réaliser l'étanchéité avec ledit réservoir, - a plug comprising a radial plate and an axial barrel, said axial barrel penetrating inside said neck during assembly, said plug comprising sealing means for sealing with said reservoir,
- une bague de fixation pour fixer ledit bouchon sur ledit col, ladite bague de fixation comportant un manchon axial cylindrique pourvu du côté supérieur d'une bride radiale s'étendant radialement vers l'intérieur et comprenant une ouverture centrale, ledit manchon axial cylindrique comportant du côté inférieur des premiers moyens de fixation pour se fixer sur ledit col dudit réservoir, - a fixing ring for fixing said stopper to said neck, said fixing ring comprising a cylindrical axial sleeve provided on the upper side with a radial flange extending radially inwards and comprising a central opening, said cylindrical axial sleeve comprising on the lower side of the first attachment means for attachment to said neck of said tank,
- un couvercle comportant un disque radial et une enveloppe axiale cylindrique s'étendant axialement vers le bas à partir dudit disque radial, ledit couvercle comportant des seconds moyens de fixation, - a cover comprising a radial disc and a cylindrical axial casing extending axially downwards from said radial disc, said cover comprising second fixing means,
- un élément de blocage comportant une paroi axiale cylindrique et des moyens de fixation complémentaires coopérant à l'état assemblé avec lesdits seconds moyens de fixation dudit couvercle, ladite paroi axiale comportant sur une partie de sa périphérie une languette déchirable définie entre deux rainures formant ponts de matière de faible épaisseur, ladite languette comportant d'un côté une partie de préhension et se terminant du côté opposé par une partie évasée, de sorte qu'en fin de déchirement, ladite paroi axiale s'ouvre sur toute sa hauteur, permettant ainsi de retirer ledit élément de blocage dudit dispositif d'obturation. Avantageusement, ledit fût axial dudit bouchon comporte sur sa surface extérieure au moins un bourrelet d'étanchéité qui coopère avec l'intérieur dudit col dudit réservoir pour garantir l'obturation étanche dudit réservoir. - a locking element comprising a cylindrical axial wall and complementary fixing means cooperating in the assembled state with said second fixing means of said lid, said axial wall comprising on part of its periphery a tearable tab defined between two grooves forming bridges of thin material, said tongue comprising on one side a gripping part and ending on the opposite side with a flared part, so that at the end of tearing, said axial wall opens over its entire height, thus allowing to remove said blocking element from said obturation device. Advantageously, said axial shaft of said plug has on its outer surface at least one sealing bead which cooperates with the inside of said neck of said tank to guarantee the tight sealing of said tank.
Avantageusement, ledit plateau radial dudit bouchon a un diamètre externe supérieur au diamètre externe dudit fût axial, et comporte au moins une projection annulaire s'étendant vers le bas qui, en position d'obturation, coopère avec ledit bord axial supérieur dudit col. Advantageously, said radial plate of said stopper has an outer diameter greater than the outer diameter of said axial shaft, and comprises at least one annular projection extending downwards which, in the closed position, cooperates with said upper axial edge of said neck.
Avantageusement, ladite projection annulaire est périphérique et est, lors de l'assemblage dudit dispositif d'obturation sur ledit col dudit réservoir, écrasée sur ledit bord axial supérieur dudit col pour réaliser l'étanchéité avec ledit réservoir. Advantageously, said annular projection is peripheral and is, when assembling said closure device on said neck of said reservoir, crushed on said upper axial edge of said neck to achieve sealing with said reservoir.
Avantageusement, ledit plateau radial comporte une zone de piquage centrale définie à l'intérieur d'un anneau axial. Advantageously, said radial plate includes a central stitching zone defined inside an axial ring.
Avantageusement, le bord radialement externe dudit anneau axial est conique en s'évasant vers le haut. Advantageously, the radially outer edge of said axial ring is conical, widening upwards.
Avantageusement, à l'état assemblé dudit dispositif d'obturation, ladite bride radiale de ladite bague de fixation se positionne sur ledit plateau radial dudit bouchon, ladite ouverture centrale recevant ledit anneau axial et ladite zone de piquage dudit bouchon. Advantageously, in the assembled state of said closure device, said radial flange of said fixing ring is positioned on said radial plate of said plug, said central opening receiving said axial ring and said tapping zone of said plug.
Avantageusement, le bord radial de ladite ouverture centrale s'encliquète sur ledit bord radialement externe conique dudit anneau axial. Advantageously, the radial edge of said central opening snaps onto said conical radially outer edge of said axial ring.
Avantageusement, lesdits premiers moyens de fixation de ladite bague de fixation sont des moyens d'encliquetage, comportant au moins un profil radial s'étendant radialement vers l'intérieur. Advantageously, said first means for fixing said fixing ring are snap-fastening means, comprising at least one radial profile extending radially inwards.
Avantageusement, lesdits premiers moyens de fixation comportent un seul profil radial qui s'étend sur toute la périphérie dudit manchon axial cylindrique. Advantageously, said first fixing means comprise a single radial profile which extends over the entire periphery of said cylindrical axial sleeve.
Avantageusement, le diamètre interne de ladite enveloppe axiale dudit couvercle est identique ou très légèrement supérieur au diamètre externe dudit manchon axial de ladite bague de fixation, de sorte qu'à l'état assemblé du dispositif d'obturation, ladite enveloppe axiale se positionne autour dudit manchon axial avec pas ou peu de jeu entre eux. Avantageusement, lesdits seconds moyens de fixation dudit couvercle comportent une ou plusieurs projection(s) s'étendant radialement vers l'extérieur. Advantageously, the internal diameter of said axial casing of said cover is identical to or very slightly greater than the external diameter of said axial sleeve of said fixing ring, so that in the assembled state of the closure device, said axial casing is positioned around said axial sleeve with little or no clearance between them. Advantageously, said second means for fixing said cover comprise one or more projection(s) extending radially outwards.
Avantageusement, lesdits moyens de fixation complémentaires dudit élément de blocage comportent un ou plusieurs profils s'étendant radialement vers l'intérieur, lesdits profils s'encliquetant sur ladite une ou plusieurs projection(s) formant lesdits seconds moyens de fixation dudit couvercle. Advantageously, said complementary fastening means of said locking element comprise one or more profiles extending radially inwards, said profiles snapping onto said one or more projection(s) forming said second fastening means of said cover.
Avantageusement, ladite paroi axiale dudit élément de blocage comporte, sur son bord axial inférieur, une paroi radiale annulaire s'étendant radialement vers l'intérieur, le bord radialement interne de ladite paroi radiale annulaire ayant un diamètre inférieur au diamètre externe dudit manchon axial cylindrique de ladite bague de fixation, et inférieur au diamètre externe dudit réservoir. Advantageously, said axial wall of said locking element comprises, on its lower axial edge, an annular radial wall extending radially inwards, the radially internal edge of said annular radial wall having a diameter smaller than the external diameter of said cylindrical axial sleeve of said fixing ring, and less than the outer diameter of said tank.
Avantageusement, ledit dispositif est dépourvu de métal. Advantageously, said device is devoid of metal.
La présente invention a aussi pour objet un ensemble comportant un réservoir de produit fluide comprenant un col et un dispositif d'obturation tel que décrit ci-dessus, pour fixer et maintenir un bouchon sur ledit col. The present invention also relates to an assembly comprising a fluid reservoir comprising a neck and a closure device as described above, for fixing and holding a stopper on said neck.
Ces caractéristiques et avantages et d’autres de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante, faite en référence aux dessins joints, donnés à titre d’exemples non limitatifs, et sur lesquels : These characteristics and advantages and others of the present invention will appear more clearly during the following detailed description, made with reference to the attached drawings, given by way of non-limiting examples, and in which:
La figure 1 est une vue schématique en perspective découpée d’un dispositif d'obturation fixé sur un réservoir, selon un mode de réalisation avantageux, Figure 1 is a schematic cut-out perspective view of a closure device fixed to a tank, according to an advantageous embodiment,
La figure 2 est une vue schématique en section verticale du dispositif d'obturation de la figure 1 , Figure 2 is a schematic view in vertical section of the closure device of Figure 1,
La figure 3 est une vue schématique en perspective découpée et éclatée du dispositif d'obturation de la figure 2, Figure 3 is a schematic cut-out and exploded perspective view of the closure device of Figure 2,
La figure 4 est une vue similaire à celle de la figure 3, en perspective éclatée, Figure 4 is a view similar to that of Figure 3, in exploded perspective,
La figure 5 est une vue schématique en perspective découpée de la bague de fixation du dispositif d'obturation de la figure 2, La figure 6 est une vue schématique en perspective découpée du bouchon du dispositif d'obturation de la figure 2, Figure 5 is a schematic cut-out perspective view of the fastening ring of the closure device of Figure 2, Figure 6 is a schematic cut-out perspective view of the cap of the closure device of Figure 2,
La figure 7 est une vue schématique en perspective de l'élément de blocage du dispositif d'obturation de la figure 2, Figure 7 is a schematic perspective view of the blocking element of the closure device of Figure 2,
La figure 8 est une vue schématique en perspective découpée de dessous du couvercle du dispositif d'obturation de la figure 2, FIG. 8 is a schematic cut-out perspective view from below of the cover of the closure device of FIG. 2,
La figure 9 est une vue schématique en perspective éclatée du dispositif d'obturation de la figure 1, après retrait de l'élément de blocage et du couvercle, Figure 9 is a schematic exploded perspective view of the closure device of Figure 1, after removal of the locking element and the cover,
La figure 10 est une vue schématique en section verticale du dispositif d'obturation de la figure 2 en cours d'assemblage, selon une variante de réalisation avantageuse, et FIG. 10 is a schematic view in vertical section of the closure device of FIG. 2 during assembly, according to an advantageous variant embodiment, and
Les figures 11 et 12 sont des vues schématiques en section verticale du dispositif d'obturation de la figure 2, respectivement avant et après assemblage sur un réservoir. Figures 11 and 12 are schematic views in vertical section of the closure device of Figure 2, respectively before and after assembly on a tank.
Les termes "axial" et "radial" se réfèrent à l'axe central longitudinal du dispositif. Les termes "haut", "bas", "supérieur" et "inférieur" se réfèrent à la position droite du dispositif représentée sur les figures 11 et 12. The terms "axial" and "radial" refer to the central longitudinal axis of the device. The terms "up", "down", "upper" and "lower" refer to the upright position of the device shown in Figures 11 and 12.
Un réservoir 1 , qui peut être en plastique ou en verre, est formé avec un col 2 à sa partie supérieure. Le réservoir 1 peut notamment se présenter sous la forme d’un flacon. Le réservoir 1 contient un produit fluide, notamment du type pharmaceutique. A tank 1, which can be plastic or glass, is formed with a neck 2 at its upper part. Reservoir 1 may in particular be in the form of a bottle. Reservoir 1 contains a fluid product, in particular of the pharmaceutical type.
Selon l'invention, un dispositif d'obturation est fixé sur le col 2 du réservoir 1. Ce dispositif d'obturation comporte un bouchon 10, une bague de fixation 20, un couvercle 30 et un élément de blocage 40. According to the invention, a closure device is fixed to the neck 2 of the tank 1. This closure device comprises a plug 10, a fixing ring 20, a lid 30 and a blocking element 40.
Le bouchon 10 prévu pour obturer de manière étanche le réservoir 1 est de préférence en matériau élastiquement déformable, comme par exemple du caoutchouc ou tout autre matériau élastomère approprié. The stopper 10 provided to seal off the reservoir 1 is preferably made of an elastically deformable material, such as for example rubber or any other suitable elastomeric material.
Ce bouchon 10 comporte un plateau radial 11 et un fût axial 12 environ cylindrique. En position d'obturation, le fût axial 12 pénètre à l'intérieur dudit col 2. Le bouchon 10 comporte des moyens d'étanchéité pour réaliser l'étanchéité avec le réservoir. This stopper 10 comprises a radial plate 11 and an axial shaft 12 which is approximately cylindrical. In the closed position, the axial shaft 12 penetrates inside said neck 2. The cap 10 includes sealing means to achieve sealing with the reservoir.
Selon une première variante avantageuse des moyens d'étanchéité, le fût axial 12 comporte sur sa surface extérieure au moins un bourrelet d'étanchéité 13 périphérique qui coopère avec l'intérieur du col 2 du réservoir 1 pour garantir l'obturation étanche du réservoir. According to a first advantageous variant of the sealing means, the axial barrel 12 comprises on its outer surface at least one peripheral sealing bead 13 which cooperates with the inside of the neck 2 of the tank 1 to guarantee the sealed closure of the tank.
Avantageusement, le plateau radial 11 a un diamètre externe supérieur au diamètre externe du fût axial 12, et comporte au niveau de son bord radialement extérieur une projection annulaire 14 s'étendant vers le bas. Lors de l'assemblage du dispositif d'obturation sur le réservoir, cette projection annulaire 14 va se déformer et assurer un certain effet ressort ainsi qu'une compensation dimensionnelle, pour optimiser l'assemblage et/ou l'étanchéité à l'état assemblé. Advantageously, the radial plate 11 has an outer diameter greater than the outer diameter of the axial shaft 12, and comprises at its radially outer edge an annular projection 14 extending downwards. When assembling the closure device on the tank, this annular projection 14 will deform and ensure a certain spring effect as well as dimensional compensation, to optimize assembly and/or sealing in the assembled state. .
Selon une seconde variante avantageuse des moyens d'étanchéité, la projection annulaire 14 est périphérique et est, lors de l'assemblage du dispositif d'obturation sur le col 2 du réservoir 1 , écrasée sur le bord axial supérieur 3 dudit col 2 pour réaliser l'étanchéité avec le réservoir 1 . Dans cette variante, le bourrelet d'étanchéité 13 n'est plus obligatoire, et pourrait soit être complètement omis, soit remplacé par plusieurs parties de bourrelets séparées les unes des autres et réparties sur la périphérie du fût axial 12, sans fonction d'étanchéité According to a second advantageous variant of the sealing means, the annular projection 14 is peripheral and is, during assembly of the closure device on the neck 2 of the reservoir 1, crushed on the upper axial edge 3 of the said neck 2 to produce sealing with tank 1 . In this variant, the sealing bead 13 is no longer mandatory, and could either be completely omitted, or replaced by several parts of beads separated from each other and distributed over the periphery of the axial shaft 12, without sealing function
Le plateau radial 11 comporte une zone de piquage 15 destinée à être percée par un dispositif approprié, tel qu'une seringue, pour prélever tout ou partie du produit fluide contenu dans le réservoir 1 . Cette zone de piquage 15 est de préférence centrale et définie à l'intérieur d'un anneau axial 16, comme visible notamment sur la figure 6. Avantageusement, le bord radialement externe dudit anneau axial 16 est légèrement conique en s'évasant vers le haut. The radial plate 11 includes a tapping zone 15 intended to be pierced by a suitable device, such as a syringe, to withdraw all or part of the fluid contained in the reservoir 1 . This stitching zone 15 is preferably central and defined inside an axial ring 16, as can be seen in particular in FIG. 6. Advantageously, the radially outer edge of said axial ring 16 is slightly conical, flaring upwards .
Eventuellement, la surface interne du bouchon 10 qui vient en contact avec le produit fluide contenu dans le réservoir 1 peut être recouverte d'un revêtement, notamment un film mince en ETFE (éthylène tétrafluoroéthylène), afin de limiter les interactions entre le bouchon 10 et le produit fluide. La bague de fixation 20 est prévue pour fixer et maintenir le bouchon 10 sur le col 2 du réservoir 1 . Optionally, the internal surface of plug 10 which comes into contact with the fluid contained in reservoir 1 may be covered with a coating, in particular a thin film of ETFE (ethylene tetrafluoroethylene), in order to limit interactions between plug 10 and the fluid product. The fixing ring 20 is provided to fix and hold the stopper 10 on the neck 2 of the reservoir 1 .
Cette bague de fixation 20 comporte un manchon axial cylindrique 21 pourvu du côté supérieur d'une bride radiale 22 s'étendant radialement vers l'intérieur et comprenant une ouverture centrale 23. En position assemblée du dispositif d'obturation, visible notamment sur les figures 1 et 2, ladite bride radiale 22 se positionne sur le plateau radial 11 du bouchon 10, avec l'ouverture 23 recevant l'anneau axial 16 et la zone de piquage 15 du bouchon 10. Avantageusement, le bord radial de ladite ouverture centrale 23 vient s'encliqueter sur le bord radialement externe dudit anneau axial 16 lorsque celui-ci est légèrement conique. This fixing ring 20 comprises a cylindrical axial sleeve 21 provided on the upper side with a radial flange 22 extending radially inwards and comprising a central opening 23. In the assembled position of the closure device, visible in particular in the figures 1 and 2, said radial flange 22 is positioned on radial plate 11 of plug 10, with opening 23 receiving axial ring 16 and stitching zone 15 of plug 10. Advantageously, the radial edge of said central opening 23 snaps onto the radially outer edge of said axial ring 16 when the latter is slightly conical.
Sur son côté inférieur, le manchon axial cylindrique 21 comporte des premiers moyens de fixation 25, notamment par encliquetage, pour se fixer sur le col 2 du réservoir 1 . Ces premiers moyens de fixation 25 comportent un profil radial s'étendant radialement vers l'intérieur. Dans l'exemple représenté, ce profil radial est périphérique, mais il pourrait en variante comporter plusieurs ergots répartis sur la périphérie. D'autres moyens de fixation sur le col 2 du réservoir 1 sont aussi envisageables. On its lower side, the cylindrical axial sleeve 21 comprises first fixing means 25, in particular by snap-fastening, to be fixed on the neck 2 of the reservoir 1 . These first fixing means 25 comprise a radial profile extending radially inwards. In the example shown, this radial profile is peripheral, but it could as a variant comprise several lugs distributed over the periphery. Other fastening means on the neck 2 of the reservoir 1 can also be envisaged.
Le couvercle 30 comporte un disque radial 31 qui à l'état assemblé vient se positionner sur la surface supérieure de la bride radiale 22 de la bague de fixation 20, comme visible notamment sur les figures 1 et 2. The cover 30 comprises a radial disc 31 which, in the assembled state, is positioned on the upper surface of the radial flange 22 of the fixing ring 20, as can be seen in particular in FIGS. 1 and 2.
Le couvercle 30 comporte également une enveloppe axiale cylindrique 32 s'étendant axialement vers le bas à partir dudit disque radial 31 , le diamètre interne de ladite enveloppe axiale 32 étant identique ou très légèrement supérieur au diamètre externe du manchon axial 21 de la bague de fixation 20. Ainsi, à l'état assemblé, ladite enveloppe axiale 32 se positionne autour du manchon axial 21 avec pas ou peu de jeu entre eux. The cover 30 also comprises a cylindrical axial casing 32 extending axially downwards from said radial disc 31, the internal diameter of said axial casing 32 being identical to or very slightly greater than the external diameter of the axial sleeve 21 of the fixing ring. 20. Thus, in the assembled state, said axial casing 32 is positioned around the axial sleeve 21 with little or no clearance between them.
Avantageusement, comme visible sur les figures, l'enveloppe axial 32 ne s'étend que sur une petite partie de la hauteur du manchon axial 21 . Advantageously, as can be seen in the figures, the axial casing 32 only extends over a small part of the height of the axial sleeve 21 .
L'enveloppe axiale 32 comporte des seconds moyens de fixation 33, tels qu'une ou plusieurs projection(s) s'étendant radialement vers l'extérieur, qui seront décrits plus en détails ci-après. Ces seconds moyens de fixation 33 sont avantageusement prévus au niveau du bord axial inférieur de l'enveloppe axiale 32. The axial casing 32 comprises second fixing means 33, such as one or more projection(s) extending radially outwards, which will be described in more detail below. These second fixing means 33 are advantageously provided at the lower axial edge of the axial casing 32.
Avantageusement, comme visible sur la figure 8, la surface inférieure du disque radial 31 comporte un évidement central 35 délimité par une projection axiale annulaire 36, ledit évidement central 35 se retrouvant à l'état assemblé au-dessus de la zone de piquage 15 du bouchon 10. Dans l'exemple représenté sur la figure 8, la projection axiale annulaire 36 est reliée à l'enveloppe axiale 32 par une pluralité de ponts radiaux 37 répartis autour de la périphérie. Dans cette mise en œuvre, ce sont donc la projection axiale annulaire 36 et les ponts radiaux 37 qui sont, à l'état assemblé, en contact avec la surface supérieure de la bride radiale 22 de la bague de fixation 20. Advantageously, as can be seen in FIG. 8, the lower surface of the radial disc 31 comprises a central recess 35 delimited by an annular axial projection 36, said central recess 35 being found in the assembled state above the stitching zone 15 of the plug 10. In the example shown in Figure 8, the annular axial projection 36 is connected to the axial casing 32 by a plurality of radial bridges 37 distributed around the periphery. In this implementation, it is therefore the annular axial projection 36 and the radial bridges 37 which are, in the assembled state, in contact with the upper surface of the radial flange 22 of the fixing ring 20.
L'élément de blocage 40 comporte une paroi axiale cylindrique 41 dont le diamètre interne est supérieur au diamètre externe de l'enveloppe axiale 32 et à celui des seconds moyens de fixation 33 du couvercle 30. The locking element 40 comprises a cylindrical axial wall 41 whose internal diameter is greater than the external diameter of the axial casing 32 and that of the second fixing means 33 of the cover 30.
La paroi axiale 41 comporte des moyens de fixation complémentaires 43, avantageusement au niveau de son bord axial supérieur. Dans l'exemple représenté sur les figures, ces moyens de fixation complémentaires comprennent un ou plusieurs profils 43 s'étendant radialement vers l'intérieur, avec le diamètre interne desdits profils 43 qui est identique ou légèrement supérieur au diamètre externe de l'enveloppe axiale 32 mais inférieur au diamètre externe des projections 33 du couvercle 30. Ainsi, à l'état assemblé, les profils 43 de l'élément de blocage 40 s'encliquètent sur la ou les projection(s) 33 du couvercle 30. Pour optimiser cet encliquetage, la forme extérieure des profils 43 et projections 33 peuvent être réalisées de manière classique, avec des plans inclinés glissant l'un sur l'autre lors de la phase d'assemblage, et des surfaces radiales formant butées d'encliquetage après assemblage. The axial wall 41 comprises complementary fixing means 43, advantageously at its upper axial edge. In the example shown in the figures, these complementary fixing means comprise one or more profiles 43 extending radially inwards, with the internal diameter of said profiles 43 which is identical to or slightly greater than the external diameter of the axial casing. 32 but less than the outer diameter of the projections 33 of the cover 30. Thus, in the assembled state, the profiles 43 of the locking element 40 snap onto the projection(s) 33 of the cover 30. To optimize this snap-fastening, the outer shape of the profiles 43 and projections 33 can be produced in the conventional manner, with inclined planes sliding one over the other during the assembly phase, and radial surfaces forming snap-fastening stops after assembly.
Dans l'exemple représenté sur les figures, le couvercle 30 comporte plusieurs projections 33 séparées, par exemple deux ou trois, réparties sur la périphérie, mais une seule projection 33 s'étendant radialement vers l'extérieur sur toute la périphérie serait aussi envisageable. De manière similaire, dans l'exemple représenté sur les figures, l'élément de blocage 40 comporte un seul profil 43 s'étendant radialement vers l'intérieur sur toute la périphérie, mais plusieurs profils 43 séparés répartis sur la périphérie seraient aussi envisageables. In the example shown in the figures, the cover 30 comprises several separate projections 33, for example two or three, distributed over the periphery, but a single projection 33 extending radially outwards over the entire periphery could also be envisaged. Similarly, in the example shown in the figures, the blocking element 40 comprises a single profile 43 extending radially inwards over the entire periphery, but several separate profiles 43 distributed over the periphery could also be envisaged.
En variante, les seconds moyens de fixation 33 du couvercle 30 et les moyens de fixation complémentaires 43 de l'élément de blocage 40 pourraient être réalisés différemment, sans nécessairement former un encliquetage. Ainsi, il est possible de fixer le couvercle 30 à l'élément de blocage 40 de manière non amovible, par exemple par soudage laser ou à ultrasons. Dans cette variante, le couvercle 30 et l'élément de blocage 40 forment alors un sous-ensemble unitaire. D'autres fixations alternatives sont aussi possibles. As a variant, the second fixing means 33 of the cover 30 and the complementary fixing means 43 of the blocking element 40 could be made differently, without necessarily forming a snap. Thus, it is possible to fix the cover 30 to the blocking element 40 in a non-removable manner, for example by laser or ultrasonic welding. In this variant, the cover 30 and the blocking element 40 then form a unitary sub-assembly. Other alternative fixings are also possible.
La paroi axiale 41 comporte sur une partie de sa périphérie une languette déchirable 42 définie entre deux rainures 44, 45 qui forment des ponts de matière de faible épaisseur. Cette languette 42 comporte une partie de préhension 46 que l'utilisateur peut saisir pour déchirer la languette sur une partie de la périphérie de l'élément de blocage 40. Comme visible sur la figure 9, la languette déchirable 42 se termine du côté opposé à la partie de préhension 46 par une partie évasée 42', de sorte qu'en fin de déchirement, la paroi axiale 41 s'ouvre sur toute sa hauteur, permettant ainsi de retirer l'élément de blocage 40 du dispositif d'obturation. The axial wall 41 comprises on part of its periphery a tearable tab 42 defined between two grooves 44, 45 which form bridges of thin material. This tab 42 has a gripping part 46 that the user can grasp to tear the tab over part of the periphery of the blocking element 40. As can be seen in FIG. 9, the tearable tab 42 ends on the side opposite to the gripping part 46 by a flared part 42', so that at the end of tearing, the axial wall 41 opens over its entire height, thus making it possible to remove the blocking element 40 from the closure device.
Sur son bord axial inférieur, ladite paroi axiale 41 comporte une paroi radiale annulaire 49 s'étendant radialement vers l'intérieur. Le bord radialement interne de ladite paroi radiale annulaire 49 a un diamètre inférieur au diamètre externe du manchon axial cylindrique 21 de la bague de fixation 20. A l'état assemblé, cette paroi radiale annulaire 49 vient se positionner axialement sous ledit manchon axial cylindrique 21 , empêchant ainsi un retrait de l'élément de blocage 40 par traction axiale vers le haut. Le bord radialement interne de la paroi radiale annulaire 49 a également un diamètre inférieur au diamètre externe du réservoir 1 . On its lower axial edge, said axial wall 41 comprises an annular radial wall 49 extending radially inwards. The radially inner edge of said annular radial wall 49 has a diameter smaller than the outer diameter of cylindrical axial sleeve 21 of fixing ring 20. In the assembled state, this annular radial wall 49 is positioned axially under said cylindrical axial sleeve 21 , thus preventing withdrawal of the locking element 40 by upward axial traction. The radially internal edge of the annular radial wall 49 also has a diameter smaller than the external diameter of the reservoir 1 .
A l'état assemblé du dispositif d'obturation, le bouchon 10 fait l'étanchéité avec le col 2 du réservoir 1 , la bague de fixation 20 fixe et maintient ledit bouchon 10 dans sa position d'obturation étanche, le couvercle 30 protège le bouchon 10 et empêche l'accès à sa zone de piquage 15, et l'élément de Il blocage 40 empêche le retrait du couvercle 30 tout en étant maintenu en position de blocage d'une part par l'encliquetage avec le couvercle 30 et d'autre part par le blocage axial réalisé par la bague de fixation 20 au niveau de la paroi radiale annulaire 49. A l'état assemblé, le dispositif d'obturation forme donc un sous-ensemble indémontable. In the assembled state of the closure device, the cap 10 makes the seal with the neck 2 of the tank 1, the fixing ring 20 fixes and maintains said cap 10 in its sealing position, the cover 30 protects the cap 10 and prevents access to its tapping zone 15, and the element of It blocking 40 prevents the removal of the cover 30 while being maintained in the blocking position on the one hand by the snap-fastening with the cover 30 and on the other hand by the axial blocking carried out by the fixing ring 20 at the level of the wall. annular radial 49. In the assembled state, the closure device therefore forms an unremovable sub-assembly.
Pour l'assemblage du dispositif d'obturation, la bague de fixation 20 est d'abord assemblée sur le bouchon 10, avec avantageusement, un encliquetage de l'une sur l'autre au niveau de l'ouverture centrale 23. Ensuite, dans l'exemple de la figure 10, le couvercle 30 est assemblé sur la bague de fixation 20 par au-dessus, et ensuite l'élément de blocage 40 vient s'encliqueter par en bas sur le couvercle 30, selon la flèche F1. En variante, on peut d'abord disposer l'unité bouchon - bague de fixation dans l'élément de blocage 40, puis venir encliqueter le couvercle 30 par en haut. Eventuellement, l'assemblage du couvercle 30 et de l'élément de blocage 40 autour de l'unité bouchon - bague de fixation peut se faire en une seule étape, l'unité bouchon - bague de fixation étant alors prise en sandwich entre le couvercle 30 et l'élément de blocage 40. For the assembly of the closure device, the fixing ring 20 is first assembled on the stopper 10, advantageously with a snap-fastening of one on the other at the level of the central opening 23. Then, in In the example of FIG. 10, the cover 30 is assembled on the fastening ring 20 from above, and then the locking element 40 snaps onto the cover 30 from below, according to the arrow F1. As a variant, the stopper/fixing ring unit can first be placed in the blocking element 40, then the cover 30 can be snapped on from above. Optionally, the assembly of the cover 30 and of the blocking element 40 around the plug-fixing ring unit can be done in a single step, the plug-fixing ring unit then being sandwiched between the cover 30 and the blocking element 40.
L'assemblage du dispositif d'obturation sur le col 2 du réservoir 1 se fait avantageusement par poussée axiale vers le bas du dispositif d'obturation, selon la flèche F2 sur la figure 11 . Ceci provoque simultanément l'insertion du bouchon 10 dans le col 2 du réservoir 1 , et la fixation, notamment l'encliquetage, de la bague de fixation 20 sur ledit col 2. La présence de l'évidement central 35 dans le couvercle 30 garantit que lors de l'assemblage, la totalité de la force F2 exercée sur le couvercle 30 est transmise à la bague de fixation 20, sans interaction directe entre le couvercle 30 et le bouchon 10. The assembly of the closure device on the neck 2 of the reservoir 1 is advantageously done by axial thrust downwards of the closure device, according to the arrow F2 in FIG. This simultaneously causes the insertion of the stopper 10 into the neck 2 of the tank 1, and the fixing, in particular the snap-fastening, of the fixing ring 20 on said neck 2. The presence of the central recess 35 in the lid 30 guarantees that during assembly, all of the force F2 exerted on the lid 30 is transmitted to the fixing ring 20, without direct interaction between the lid 30 and the cap 10.
Les dimensions et formes dudit au moins un bourrelet d'étanchéité 13 sont choisies de telle sorte que l'étanchéité soit garantie à l'état assemblé, sans générer des forces trop importantes lors de l'assemblage. Ceci permet d'utiliser une machine d'assemblage avec des paniers ou nests pouvant assembler simultanément plusieurs dizaines de dispositifs, par exemple une centaine. Après assemblage du dispositif d'obturation sur le réservoir, le dispositif d'obturation comporte un témoin de premier usage infalsifiable. En effet, tant que la languette déchirable 42 n'est pas déchirée, et l'élément de blocage 40 retiré, le couvercle 30 ne peut être retiré. Le contenu du réservoir est donc parfaitement protégé. Après retrait de l'élément de blocage 40, le couvercle 30 peut également être retiré. Par contre, il n'est alors plus possible de remettre un autre élément de blocage 40, car cet assemblage doit nécessairement se faire avant assemblage sur le réservoir 1. En effet, le diamètre interne de la paroi radiale annulaire 49 étant inférieur au diamètre externe du réservoir 1 , il n'est pas possible d'assembler un élément de blocage 40 par-dessus le réservoir 1. De même, le diamètre interne de la paroi radiale annulaire 49 étant inférieur au diamètre externe du manchon axial cylindrique 21 de la bague de fixation 20, il n'est pas possible d'assembler un élément de blocage 40 par dessus la bague de fixation 20. Bien entendu, des variantes de réalisation sont envisageables, sans sortir du cadre de la présente invention, tel que défini par les revendications annexées. The dimensions and shapes of said at least one sealing bead 13 are chosen so that sealing is guaranteed in the assembled state, without generating excessive forces during assembly. This makes it possible to use an assembly machine with baskets or nests that can simultaneously assemble several tens of devices, for example a hundred. After assembly of the closure device on the tank, the closure device includes a tamper-proof first use indicator. Indeed, as long as the tear-off tab 42 is not torn, and the blocking element 40 removed, the cover 30 cannot be removed. The contents of the tank are therefore perfectly protected. After removal of the blocking element 40, the cover 30 can also be removed. On the other hand, it is then no longer possible to replace another locking element 40, because this assembly must necessarily be done before assembly on the tank 1. Indeed, the internal diameter of the annular radial wall 49 being smaller than the external diameter of the reservoir 1, it is not possible to assemble a blocking element 40 over the reservoir 1. Similarly, the internal diameter of the annular radial wall 49 being smaller than the external diameter of the cylindrical axial sleeve 21 of the ring 20, it is not possible to assemble a locking element 40 over the fixing ring 20. Of course, variant embodiments are possible, without departing from the scope of the present invention, as defined by the appended claims.

Claims

Revendications Claims
1. Dispositif d'obturation d'un réservoir de produit fluide (1) comportant un col (2) pourvu d'un bord axial supérieur (3), ledit dispositif d'obturation comportant : 1. Closing device for a fluid reservoir (1) comprising a neck (2) provided with an upper axial edge (3), said closing device comprising:
- un bouchon (10) comportant un plateau radial (11) et un fût axial (12), ledit fût axial (12) pénétrant à l'intérieur dudit col (2) lors de l'assemblage, ledit bouchon (10) comportant des moyens d'étanchéité (13; 14) pour réaliser l'étanchéité avec ledit réservoir (1), - a plug (10) comprising a radial plate (11) and an axial shank (12), said axial shank (12) penetrating inside said neck (2) during assembly, said plug (10) comprising sealing means (13; 14) for sealing with said reservoir (1),
- une bague de fixation (20) pour fixer ledit bouchon (10) sur ledit col (2), ladite bague de fixation (20) comportant un manchon axial cylindrique (21) pourvu du côté supérieur d'une bride radiale (22) s'étendant radialement vers l'intérieur et comprenant une ouverture centrale (23), ledit manchon axial cylindrique (21) comportant du côté inférieur des premiers moyens de fixation (25) pour se fixer sur ledit col (2) dudit réservoir (1), - a fixing ring (20) for fixing said cap (10) on said neck (2), said fixing ring (20) comprising a cylindrical axial sleeve (21) provided on the upper side with a radial flange (22) s extending radially inwards and comprising a central opening (23), said cylindrical axial sleeve (21) comprising on the lower side first fixing means (25) for fixing to said neck (2) of said tank (1),
- un couvercle (30) comportant un disque radial (31) et une enveloppe axiale cylindrique (32) s'étendant axialement vers le bas à partir dudit disque radial (31), ledit couvercle (30) comportant des seconds moyens de fixation (33), - a cover (30) comprising a radial disc (31) and a cylindrical axial envelope (32) extending axially downwards from said radial disc (31), said cover (30) comprising second fixing means (33 ),
- un élément de blocage (40) comportant une paroi axiale cylindrique (41 ) et des moyens de fixation complémentaires (43) coopérant à l'état assemblé avec lesdits seconds moyens de fixation (33) dudit couvercle (30), caractérisé en ce que ladite paroi axiale (41) comporte sur une partie de sa périphérie une languette déchirable (42) définie entre deux rainures (44, 45) formant ponts de matière de faible épaisseur, ladite languette (42) comportant d'un côté une partie de préhension (46) et se terminant du côté opposé par une partie évasée (42'), de sorte qu'en fin de déchirement, ladite paroi axiale (41) s'ouvre sur toute sa hauteur, permettant ainsi de retirer ledit élément de blocage (40) dudit dispositif d'obturation. - a locking element (40) comprising a cylindrical axial wall (41) and complementary fixing means (43) cooperating in the assembled state with said second fixing means (33) of said cover (30), characterized in that said axial wall (41) comprises on part of its periphery a tearable tongue (42) defined between two grooves (44, 45) forming bridges of thin material, said tongue (42) comprising on one side a gripping part (46) and ending on the opposite side with a flared part (42'), so that at the end of tearing, said axial wall (41) opens over its entire height, thus making it possible to remove said blocking element ( 40) of said shutter device.
2. Dispositif selon la revendication 1, dans lequel ledit fût axial (12) dudit bouchon (10) comporte sur sa surface extérieure au moins un bourrelet d'étanchéité (13) qui coopère avec l'intérieur dudit col (2) dudit réservoir2. Device according to claim 1, wherein said axial shaft (12) of said plug (10) has on its outer surface at least one sealing bead (13) which cooperates with the inside of said neck (2) of said reservoir
(I) pour garantir l'obturation étanche dudit réservoir. (I) to ensure the sealing of said reservoir.
3. Dispositif selon la revendication 1 ou 2, dans lequel ledit plateau radial3. Device according to claim 1 or 2, wherein said radial plate
(I I) dudit bouchon (10) a un diamètre externe supérieur au diamètre externe dudit fût axial (12), et comporte au moins une projection annulaire (14) s'étendant vers le bas qui, en position d'obturation, coopère avec ledit bord axial supérieur (3) dudit col (2). (I I) said plug (10) has an outer diameter greater than the outer diameter of said axial shaft (12), and comprises at least one annular projection (14) extending downwards which, in the closed position, cooperates with said upper axial edge (3) of said neck (2).
4. Dispositif selon la revendication 3, dans lequel ladite projection annulaire (14) est périphérique et est, lors de l'assemblage dudit dispositif d'obturation sur ledit col (2) dudit réservoir (1 ), écrasée sur ledit bord axial supérieur (3) dudit col (2) pour réaliser l'étanchéité avec ledit réservoir (1 )· 4. Device according to claim 3, wherein said annular projection (14) is peripheral and is, when assembling said closure device on said neck (2) of said reservoir (1), crushed on said upper axial edge ( 3) said neck (2) to seal with said tank (1) ·
5. Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit plateau radial (11) comporte une zone de piquage (15) centrale définie à l'intérieur d'un anneau axial (16). 5. Device according to any one of the preceding claims, in which the said radial plate (11) comprises a central tapping zone (15) defined inside an axial ring (16).
6. Dispositif selon la revendication 5, dans lequel le bord radialement externe dudit anneau axial (16) est conique en s'évasant vers le haut. 6. Device according to claim 5, wherein the radially outer edge of said axial ring (16) is conical, widening upwards.
7. Dispositif selon la revendication 5 ou 6, dans lequel, à l'état assemblé dudit dispositif d'obturation, ladite bride radiale (22) de ladite bague de fixation (20) se positionne sur ledit plateau radial (11 ) dudit bouchon (10), ladite ouverture centrale (23) recevant ledit anneau axial (16) et ladite zone de piquage (15) dudit bouchon (10). 7. Device according to claim 5 or 6, wherein, in the assembled state of said closure device, said radial flange (22) of said fixing ring (20) is positioned on said radial plate (11) of said plug ( 10), said central opening (23) receiving said axial ring (16) and said stitching area (15) of said plug (10).
8. Dispositif selon la revendication 7, dans lequel le bord radial de ladite ouverture centrale (23) s'encliquète sur ledit bord radialement externe conique dudit anneau axial (16). 8. Device according to claim 7, in which the radial edge of the said central opening (23) snaps onto the said tapered radially outer edge of the said axial ring (16).
9. Dispositif selon l'une quelconque des revendications, dans lequel lesdits premiers moyens de fixation (25) de ladite bague de fixation (20) sont des moyens d'encliquetage, comportant au moins un profil radial s'étendant radialement vers l'intérieur. 9. Device according to any one of the claims, in which the said first fixing means (25) of the said fixing ring (20) are snap-fastening means, comprising at least one radial profile extending radially inwards. .
10. Dispositif selon la revendication 9, dans lequel lesdits premiers moyens de fixation (25) comportent un seul profil radial qui s'étend sur toute la périphérie dudit manchon axial cylindrique (21). 10. Device according to claim 9, wherein said first fixing means (25) comprise a single radial profile which extends over the entire periphery of said cylindrical axial sleeve (21).
11. Dispositif selon l'une quelconque des revendications précédentes, dans lequel le diamètre interne de ladite enveloppe axiale (32) dudit couvercle (30) est identique ou très légèrement supérieur au diamètre externe dudit manchon axial (21) de ladite bague de fixation (20), de sorte qu'à l'état assemblé du dispositif d'obturation, ladite enveloppe axiale (32) se positionne autour dudit manchon axial (21 ) avec pas ou peu de jeu entre eux. 11. Device according to any one of the preceding claims, in which the internal diameter of the said axial casing (32) of the said cover (30) is identical to or very slightly greater than the external diameter of the said axial sleeve (21) of the said fixing ring ( 20), so that in the assembled state of the closure device, said axial casing (32) is positioned around said axial sleeve (21) with little or no clearance between them.
12. Dispositif selon l'une quelconque des revendications précédentes, dans lequel lesdits seconds moyens de fixation (33) dudit couvercle (30) comportent une ou plusieurs projection(s) s'étendant radialement vers l'extérieur. 12. Device according to any one of the preceding claims, in which said second fixing means (33) of said cover (30) comprise one or more projection(s) extending radially outwards.
13. Dispositif selon la revendication 12, dans lequel lesdits moyens de fixation complémentaires (43) dudit élément de blocage (40) comportent un ou plusieurs profils s'étendant radialement vers l'intérieur, lesdits profils s'encliquetant sur ladite une ou plusieurs projection(s) formant lesdits seconds moyens de fixation (33) dudit couvercle (30). 13. Device according to claim 12, wherein said complementary fixing means (43) of said locking element (40) comprise one or more profiles extending radially inwards, said profiles snapping onto said one or more projections. (S) forming said second fixing means (33) of said cover (30).
14. Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite paroi axiale (41) dudit élément de blocage (40) comporte, sur son bord axial inférieur, une paroi radiale annulaire (49) s'étendant radialement vers l'intérieur, le bord radialement interne de ladite paroi radiale annulaire (49) ayant un diamètre inférieur au diamètre externe dudit manchon axial cylindrique (21) de ladite bague de fixation (20), et inférieur au diamètre externe dudit réservoir (1 ). 14. Device according to any one of the preceding claims, in which the said axial wall (41) of the said locking element (40) comprises, on its lower axial edge, an annular radial wall (49) extending radially inwards , the radially inner edge of said annular radial wall (49) having a diameter smaller than the outer diameter of said cylindrical axial sleeve (21) of said fixing ring (20), and smaller than the outer diameter of said tank (1).
15. Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit dispositif est dépourvu de métal. 15. A device according to any preceding claim, wherein said device is metal free.
16. Ensemble comportant un réservoir de produit fluide (1) comprenant un col (2) et un dispositif d'obturation (10) selon l'une quelconque des revendications précédentes, pour fixer et maintenir un bouchon (10) sur ledit col (2). 16. Assembly comprising a fluid reservoir (1) comprising a neck (2) and a closure device (10) according to any one of the preceding claims, for fixing and holding a cap (10) on said neck (2 ).
EP22710679.6A 2021-02-24 2022-02-22 Device for sealing a fluid product vessel Pending EP4298028A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2101797A FR3120059B1 (en) 2021-02-24 2021-02-24 Closing device for a fluid reservoir
PCT/FR2022/050320 WO2022180337A1 (en) 2021-02-24 2022-02-22 Device for sealing a fluid product vessel

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EP4298028A1 true EP4298028A1 (en) 2024-01-03

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US (1) US20240228125A9 (en)
EP (1) EP4298028A1 (en)
JP (1) JP2024510116A (en)
KR (1) KR20230150987A (en)
CN (1) CN117136161A (en)
FR (1) FR3120059B1 (en)
WO (1) WO2022180337A1 (en)

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EP4410700A1 (en) * 2023-02-06 2024-08-07 UAB Baltic caps Bottle stopper

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CA2985439A1 (en) 2015-06-29 2017-01-05 Antonio Mutterle Closing assembly for a bottle, associated bottle and assembly method
DE102017127313A1 (en) * 2017-11-20 2019-05-23 Bericap Holding Gmbh Plastic closure for containers

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JP2024510116A (en) 2024-03-06
WO2022180337A1 (en) 2022-09-01
US20240228125A9 (en) 2024-07-11
FR3120059A1 (en) 2022-08-26
FR3120059B1 (en) 2023-06-02
CN117136161A (en) 2023-11-28
KR20230150987A (en) 2023-10-31

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