EP2956379A1 - Fastening device for sealing a fluid product reservoir - Google Patents

Fastening device for sealing a fluid product reservoir

Info

Publication number
EP2956379A1
EP2956379A1 EP14713151.0A EP14713151A EP2956379A1 EP 2956379 A1 EP2956379 A1 EP 2956379A1 EP 14713151 A EP14713151 A EP 14713151A EP 2956379 A1 EP2956379 A1 EP 2956379A1
Authority
EP
European Patent Office
Prior art keywords
neck
ring
shoulder
flaps
under
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.)
Granted
Application number
EP14713151.0A
Other languages
German (de)
French (fr)
Other versions
EP2956379B1 (en
Inventor
Ghislain Fournier
Mickaël SWAL
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 Stelmi SAS
Original Assignee
Aptar Stelmi 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 Stelmi SAS filed Critical Aptar Stelmi SAS
Publication of EP2956379A1 publication Critical patent/EP2956379A1/en
Application granted granted Critical
Publication of EP2956379B1 publication Critical patent/EP2956379B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B65D41/16—Snap-on caps or cap-like covers
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
    • B65D45/322—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member the clamping device being an annular member moved axially to clamp the closure by using radial pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1049—Attachment arrangements comprising a deformable or resilient ferrule clamped or locked onto the neck of the container by displacing, e.g. sliding, a sleeve surrounding the ferrule
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means

Definitions

  • the present invention relates to a fastener for sealingly sealing a fluid reservoir which may be in the form of a vial, a cartridge, a pre-filled syringe, a cartridge, etc.
  • the reservoir forms a neck provided with an outer peripheral reinforcement defining with the remainder of the neck a lower shoulder under which the fastening device will hang.
  • the preferred field of application of the present invention is that of tanks closed by means of a closure member pierceable by means of a needle.
  • the present invention can also be applied to other fields such as those of pharmacy, perfumery or cosmetics where the closure member is associated with a pump or a valve.
  • FR-2 764 584 which describes a fixing device for fixing a pump or a valve on the neck of a tank.
  • This fixing device comprises a fixing ring comprising a peripheral skirt which is engaged axially around the neck to below its shoulder. The skirt is provided with flaps whose free ends point inwards and upwards to come into abutting contact against the shoulder and thus provide a snap of the fixing ring on the neck of the reservoir.
  • This fixing ring can be made of metal or injected molded plastic material. To ensure the seal at the neck, an O-ring is crushed by the fixing ring on the upper edge of the neck.
  • the present invention aims to overcome the aforementioned drawbacks of the prior art by defining a fixing device which can engage under the shoulder of the neck to ensure a perfect fixation and sealing, without depending on the thickness and the compressibility of the closure member and the manufacturing tolerance of the neck.
  • Another object of the present invention is to achieve fixing under the shoulder of the neck with a suitable compression of the closure member.
  • the present invention provides a fixing device for closing a fluid reservoir formed with a collar provided with an outer peripheral reinforcement defining with the remainder of the neck a lower shoulder, said fixing device comprising a fixing ring.
  • the fixing ring comprising a peripheral skirt which is engaged axially around the neck to below the lower shoulder, said skirt being provided with fastening elements each forming a zone contact strip adapted to come into potentially supported engagement with the neck under the lower shoulder to secure the ring to the neck, characterized in that the contact areas are located at different axial heights on the inner periphery of the skirt without axial overlap , so that some contact areas come into operant engagement under the lower shoulder, while others contact ones will never be in operative engagement under the lower shoulder of the neck, or vice versa.
  • the free ends of the flaps which form contact zones, extend all at the same level or at the same axial height, so that there is only one position snap.
  • the present invention has solved this problem by arranging the contact areas at different axial levels or heights so that at least some contact areas can be housed under the shoulder with an acceptable bearing force, while the others Contact zones can either remain around the peripheral reinforcement or be located below the shoulder at a distance from it. There are as many mounting positions as there are different axial heights for the contact areas. By arranging the contact areas at different axial heights, an acceptable fixing and sealing is guaranteed, whatever the tolerances of the closure member in terms of size and compression and the manufacturing tolerances of the neck of the reservoir. It is even possible to implement shutter members with significantly different dimensional and compression characteristics. The spreading of the contact zones over a certain axial height multiplies the possibilities of fixing under the shoulder, whereas there is only one possibility of fixing in the aforementioned documents of the prior art.
  • the hooking elements are radially movable to pass over the outer reinforcement of the neck and engage under the lower shoulder.
  • the attachment elements are constrained in the deformed position when passing over the outer peripheral reinforcement of the neck.
  • the contact zones define two distinct axial heights.
  • the contact areas of each level are sufficiently wide to ensure a robust attachment to the neck of the tank. It is obvious that the multiplication of height or level for the contact zones necessarily implies a reduction in their grip under the shoulder of the neck.
  • the closure member is axially deformable. This is valid when the closure member is in the form of a disk or an elastomer pellet closing the opening of the neck. This is also valid when the closure member is in the form of a pump or a valve equipped with an elastomeric neck gasket.
  • the fixing ring is made of plastic. However, it is also possible to make the metal fixing ring.
  • the fastening device further comprises a locking hoop which is engaged around the peripheral skirt in a final mounting position for locking at least part of the fastening elements under the shoulder. inferior.
  • the locking ring is not functionally necessary. However, it can still be implemented, simply for aesthetic reasons, to hide the fixing ring.
  • the locking hoop is temporarily held on the fixing ring in a pre-assembled position.
  • the fixing ring and the locking ring together constitute a unitary entity that is easily manipulated during assembly on a tank neck.
  • the hooking elements comprise tabs that extend freely downwards, these lugs forming upwardly directed flanges which define the contact zones of different axial heights.
  • the fixing device further comprises a locking ring forming a locking ring which engages around the tabs in a final mounting position for locking at least a portion of the tabs under the lower shoulder, this locking ring being advantageously elastically deformable.
  • the peripheral skirt forms vertical blades separated by axial slots, the locking ring forming several vertical branches which are arranged in the axial slots between two vertical blades in the final mounting position. In this way, the vertical branches of the locking ring interlock in the skirt of the fixing ring without creating radial excess thickness.
  • the vertical branches may have a configuration and a wall thickness identical to the vertical blades of the peripheral skirt, so that the vertical branches of the hoop complete the peripheral skirt. The radial wall thickness of the fastener is then limited to that of the skirt.
  • the fastening elements comprise flaps whose free ends point inwards and upwards, these free ends forming the contact zones some of which engage under the shoulder to thus achieve the attachment of the fixing ring on the neck of the tank.
  • These flaps are similar to those of FR-2 764 584 and EP-006 032, except with regard to the differentiated axial heights of the contact zones.
  • the flaps comprise at least two short flaps and at least two long flaps, defining contact zones having two distinct axial heights, the short flaps being locked below the shoulder by a locking collar which is engaged around the peripheral skirt.
  • the short flaps each form a base opposite their free end, which projects radially outwardly more than the base of the long flaps to engage the locking ferrule. Since the short flaps are undoubtedly arranged below the shoulder of the neck, even if it is the long flaps which are engaged with the shoulder of the neck, they guarantee the inguermontizat of the fixing device, since they are blocked under the shoulder by the locking collar. Thus, even if a malicious user managed to disengage the long flaps from below the shoulder, the short flaps would abut against the shoulder, and because of their locking by the locking collar, the fastener does not could not be removed from the tank.
  • the present invention also defines a fluid reservoir comprising a neck provided with a fastening device as defined above for maintaining a sealing member sealingly on the neck.
  • the spirit of the present invention lies in the fact of providing zones of contact or attachment of the fixing ring at different or differentiated levels or different heights so that at least one part of these contact areas can engage under the shoulder of the neck without having to worry about the dimensional, dynamic, compression or manufacturing tolerances of the constituent elements.
  • the realization of the plastic fastening device which by definition has a certain elasticity or flowability, allows to confer an even greater flexibility of use. Indeed, a slight deformation or creep of the fastening elements at their contact areas is possible.
  • FIG. 1 is a greatly enlarged perspective view of a fastening device according to a first embodiment of the invention
  • FIG. 2 is a cross-sectional view through the fastening device of FIG. 1 ready to be mounted on a tank neck;
  • FIGS. 3a and 3b are partial perspective views of the fixing device of FIGS. 1 and 2 while being mounted on a tank neck,
  • FIG. 4 is a perspective view of a fastening device according to a second embodiment of the invention ready to be mounted on a tank neck;
  • FIG. 5 is a cross-sectional view of the fastening device of FIG. 4 in the final mounting position on a tank neck
  • Figures 6 and 7 are perspective views of the fixing device of Figures 4 and 5 being mounted on a tank neck.
  • This fixing device comprises a fixing ring 2 and a locking ring 3 intended to be mounted on a tank 1 to maintain a closure member 4.
  • the locking ring 3 may be an optional element in some cases of application.
  • the reservoir 1, which may be plastic or glass, is formed with a body 13 for containing fluid and a neck 10 at its upper part. It can be seen that the neck 10 extends from the body 13 with a cylindrical section 14, then forms a shoulder 12 towards the outside and ends with another cylindrical section of greater diameter forming an outer peripheral reinforcement 11. The shoulder 12 thus forms the transition between the reinforcement 1 1 and the remainder of the neck which joins the body 1.
  • the neck also defines an annular edge 15.
  • the reservoir may be in the form of a vial, a carpule, a pre-filled syringe, a cartridge, etc. The bottom of the tank is fixed or removable.
  • the closure member 4 is a disk or a pellet of elastically deformable material, such as rubber or other elastomeric material. Its thickness is of the order of 0.5mm to 30mm and a hardness of 30 to 70 shore A. The shutter member 4 will be crushed on the annular edge 15 of the neck 10 with a force to reduce its thickness up to 40%.
  • the closure member may also be in the form of a removable plug or fixed, or a neck joint associated with a dispensing member, such as a pump or a valve.
  • the fixing ring 2 is preferably made by injection molding of suitable plastic material, such as for example polyethylene or polypropylene.
  • the fixing ring 2 comprises a substantially plane top plate comprising a central ring 20 defining internally an opening 201.
  • the upper plate also comprises radial flanges 202 which extend outwardly from the central crown 20 in the manner of spokes.
  • the flanges 202 are spaced from each other and are connected on the outer periphery to vertical axial blades 22 which are separated from each other, either by axial slots 23 or by axial windows 25a, 25b.
  • Fastening elements, in the form of tabs 26a, 26b extend downwards from spacers 24a, 24b which connect together some blades 22.
  • the blades 22, the spacers 24a, 24b and the tabs 26a, 26b form together a peripheral skirt 21 which is both split at the slots 23 and perforated at the windows 25a, 25b.
  • the vertical axial slots 23 are open at their two axial ends, since the blades 22 which are adjacent to a slot 23 are connected to each other only at the level of the central ring 20.
  • the blades 22 which are adjacent to a window 25b are connected together by the spacer 24b. It is the same for the blades 22 which are adjacent to the windows 25a: they are connected together by the spacer 24a.
  • three blades 22 are connected together by a spacer 24a and a spacer 24b, the end plates being adjacent to two axial slots 23.
  • the windows 25a are smaller than the windows 25b, since the spacer 24a is axially higher than the spacer 24b.
  • the window sill forms the upper edge of the legs 26a and 26b.
  • These flanges form contact zones 27a, 27b intended to potentially come into engagement under the shoulder 12 of the neck 10. Since the spacers 24a and 24b have different heights, the contact zones 27a and 27b are also located at different locations. different levels or heights, as is clearly visible in Figure 2. It can clearly be seen that the tab 26a is higher than the tab 26b, so that one can qualify the tab 26a of long leg and the tab 26b of short leg.
  • each tab 26a , 26b defines only one contact area 27a, 27b, so that the contact areas are distributed over the inner periphery of the skirt 21 without ever being superimposed axially. It may also be noted that the tabs 26a, 26b extend inside the spacers 24a, 24b, so that they are set back with respect to a lower edge 28 formed jointly by the blades 22 and the spacers 24a, 24b, as can be seen in Figure 1.
  • the closure member 4 is disposed or pre-mounted inside the fixing ring 2, in contact with the upper plate formed by the central ring 20 and its flanges 202.
  • the peripheral edge of the body shutter 4 can be engaged within the re-entrant step 221 formed by the blades 22.
  • the shutter member 4 is accessible from the outside through the opening 201.
  • the locking band 3 comprises an upper disc 32 defining a central passage 34 which is aligned with the opening 201 of the ring 2.
  • the disc 32 On its outer periphery, the disc 32 is provided with a plurality of vertical axial branches 33, which preferably have a Likewise, the branches 33 form a re-entrant step 331, like that 221 of the blades 22.
  • the branches 33 are connected together at their lower end by a locking ring 31 which is preferably continuous over its entire periphery.
  • the locking ferrule 3 may be made of a relatively flexible or elastically deformable material, such as polyethylene or polypropylene.
  • the locking hoop 3 can be temporarily and not definitively mounted on the fixing ring 2 by engaging the locking ring 31 around the re-entrant step 221 of the blades 22 which are advantageously provided with retaining profiles. 222.
  • the locking ring 31 may advantageously be made with corresponding profiles on its inner face to cooperate with retaining profiles 222 of the re-entrant step.
  • the locking ring 3 and the fixing ring 2 together form a rigid entity difficult to dismantle. This integral entity can be easily handled, especially when mounting the fixing ring on a tank neck.
  • the locking ring 3 can be advantageously oriented on the fixing ring 2 so as to position the vertical branches 33 above and opposite the vertical axial slots 23. To this end, it can be provided means for orientation or indexing for angularly positioning the 3 on the ring 2 in the position shown in Figure 1.
  • the peripheral skirt 21 is engaged around the neck 10 of the tank 1.
  • the locking ring 3 is still in its pre-assembled provisional position.
  • the contact zone 27a of the long tab 26a fails to fit under the shoulder 12 of the neck 10, while the contact zone 27b of the short tab 26b is engaged under the shoulder 12.
  • the height of the peripheral reinforcement 1 1, the thickness or the compressibility of the shutter element 4 does not allow the long tabs to engage under the shoulder 12.
  • the long legs 26a could have engaged under the shoulder 12, but in this case, the contact areas 27b can not would then be more in contact with the shoulder 12.
  • the blade 22 which is adjacent to the long tab 26a is slightly outwardly deformed, and is forced to remain in this state.
  • the vertical branches 33 of the locking band 3 are arranged in the axial vertical slots 23 so as to fill them.
  • the branches 33 complete the peripheral skirt 21 at the slots 23.
  • the locking ring 31 comes into alignment with the outer wall of the blades and is contiguous with the lower edge 28. Only the windows 25a , 25b remain open. Realizing the branches 23 with a wall thickness equal to or less than those of the blades 22, they interlock perfectly in the windows without creating radial extra thickness, neither inwardly nor outwardly. A fastening device is thus obtained whose radial thickness around the neck is limited to that of the peripheral skirt 21.
  • the branches 33 and the ring 31 consolidate the ring 2.
  • the fixing ring 2 ' comprises a central ring 20' defining an opening 201 '. From the ring 20 'extend four radially outward flanges 202' which extend downwards by four axial vertical blades 22 'connecting a lower ring 24'.
  • the skirt 21 ' is here formed by the four blades 22' and the ring 24 '.
  • the blades 22 ' are separated by slots 23' which extend from the ring 20 'to the ring 24': the slots 23 'are thus open axially at their upper ends.
  • the ring 24' forms a flap 26a ', 26b' which points upwardly and inwardly in a respective slot 23 '.
  • the free ends of these flaps form contact areas 27a ', 27b' able to come into contact with the shoulder 12 of the neck.
  • Two of these flaps 26a ' are long and the other two flaps 26b' are short, so that the contact areas 27a 'of the flaps 26a' are higher axially than the contact areas 27b 'of the flaps 26b'. In other words, the axial heights of the contact areas 27a 'and 27b' are different or different.
  • the thickness of the flaps is preferably equal to or less than the wall thickness of the ring 24 ', so that the flaps can be housed in the slots 23' without projecting either inwardly or towards the 'outside.
  • the flaps can therefore be fully included in their respective slots.
  • the flaps are originally formed with their inward orientation, as this avoids a subsequent operation of folding the flaps inwardly below the shoulder 12 of the neck.
  • the flaps, and thus the ring itself, will preferably be molded of plastic in the state shown in Figure 4.
  • the shutter member 4 is housed under the ring 20 'and the flanges 202' between the blades 22 '.
  • the shutter member may be the same or similar to that of the first embodiment.
  • the locking ferrule 3 ' comprises an upper disc 32' which defines a central passage 34 'which is aligned with the opening 201', as can be seen in FIG. 5.
  • a substantially cylindrical envelope 33 ' extends downwards from the outer periphery of the disk 20 '. This envelope 33 'forms at its lower end a locking ring 31' which internally forms a latching housing.
  • the ring 31 ' is engaged with the ratchet bead 221' of the blades 22 ', so as to form a solidary entity easily manipulated, especially during mounting on the neck 10.
  • the ring 24 ' is engaged axially around the reinforcement 1 1 of the neck until the short flaps 26b' are housed under the shoulder 12 of the neck. Then, an additional support force on the fret 3 'makes it possible to check if it is possible to make down the ring 24 'until the long flaps 26a' are also housed under the shoulder 12.
  • the hoop 3 ' forms just above the crown 31' a rib 31 1 which bears against the short flaps 26b 'to lock them under the shoulder 12, but not against the long flaps 26a', because their base 262 is set back.
  • the fastening of the fastening device would still be ensured by the short flaps 26b' which are blocked by the rib 31 1 of the band 3 '.
  • FIGS. 1 to 7 illustrate rings having contact zones defining two different axial heights
  • two different axial heights can cover a relatively large tolerance range, while maintaining sufficient strength and tightness.
  • the contact zones that remain inoperative are either located below the shoulder 12 without touching it, or at the level of the reinforcement 1 1 without ever reaching under the shoulder 12.
  • a fixing ring which can be produced in a standard manner, which can be associated with organs various types of shutter, and which can be mounted on tanks with relatively large neck tolerances.
  • the tabs 26a, 26b and the reentrant flaps 26a ', 26b' are only two particular non-limiting embodiments: indeed, the present invention can be declined with any type of fastening element capable of coming into effect. taken with a lower shoulder formed by the neck of a tank.
  • the size of the fixing device is greatly reduced, since the locking ring 3 does not create extra thickness at the peripheral skirt of the fixing ring.

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

Abstract

A fastening device for sealing a fluid product reservoir (1) formed with a neck(10) provided with an outer peripheral reinforcement (11) defining, with the rest of the neck, a lower shoulder (12), said fastening device comprising a retaining ring (2) for holding a sealing member (4) on the neck (10), the retaining ring (2) comprising a peripheral skirt (21) that is axially engaged around the neck as far as under the lower shoulder (12), said skirt (21) being provided with hooking elements (26a, 26b) each forming a contact area (27a, 27b) capable of potentially engaging with the neck (10) under the lower shoulder (12) to secure the ring (2) on the neck (10), characterised in that the contact areas (27a, 27b) are located at different axial heights, such that certain contact areas (27a, 27b) come into operative engagement under the lower shoulder (12), while other contact areas (27a, 27b) remain inoperative.

Description

Dispositif de fixation pour obturer un réservoir  Fastening device for closing a tank
de produit fluide  Fluid product
La présente invention concerne un dispositif de fixation pour obturer de manière étanche un réservoir de produit fluide qui peut se présenter sous la forme d'un flacon, d'une carpule, une seringue pré-remplie, d'une cartouche, etc. Le réservoir forme un col pourvu d'un renfort périphérique extérieur définissant avec le reste du col un épaulement inférieur sous lequel le dispositif de fixation va s'accrocher. Le domaine d'application privilégié de la présente invention est celui des réservoirs obturés à l'aide d'un organe d'obturation perçable à l'aide d'une aiguille. Toutefois, la présente invention peut également s'appliquer à d'autres domaines comme ceux de la pharmacie, de la parfumerie ou de la cosmétique où l'organe d'obturation est associé à une pompe ou une valve. The present invention relates to a fastener for sealingly sealing a fluid reservoir which may be in the form of a vial, a cartridge, a pre-filled syringe, a cartridge, etc. The reservoir forms a neck provided with an outer peripheral reinforcement defining with the remainder of the neck a lower shoulder under which the fastening device will hang. The preferred field of application of the present invention is that of tanks closed by means of a closure member pierceable by means of a needle. However, the present invention can also be applied to other fields such as those of pharmacy, perfumery or cosmetics where the closure member is associated with a pump or a valve.
Dans l'art antérieur, on connaît déjà le document FR-2 764 584 qui décrit un dispositif de fixation pour fixer une pompe ou une valve sur le col d'un réservoir. Ce dispositif de fixation comprend une bague de fixation comportant une jupe périphérique qui est engagée axialement autour du col jusqu'en dessous de son épaulement. La jupe est pourvue de rabats dont les extrémités libres pointent vers l'intérieur et vers le haut pour venir en contact de butée contre l'épaulement et ainsi réaliser un encliquetage de la bague de fixation sur le col du réservoir. Cette bague de fixation peut être réalisée en métal ou en matière plastique injectée moulée. Pour garantir l'étanchéité au niveau du col, un joint torique est écrasé par la bague de fixation sur le bord supérieur du col. Même si l'on considère que la bague de fixation de ce document peut être réalisé avec une tolérance faible, voire nulle, l'encliquetage des rabats sous l'épaulement du col dépend de l'épaisseur du joint de col, de sa compressibilité, et de la hauteur du renfort périphérique dont les tolérances de fabrication peuvent être grandes, particulièrement dans le cas d'un réservoir en verre. Compte tenu de ces paramètres variables, il n'est pas garanti que les rabats puissent parvenir en dessous de l'épaulement du col ou qu'ils viennent en contact de l'épaulement avec une force suffisante pour réaliser l'étanchéité au niveau du joint de col. De ce fait, la bague de fixation du document FR-2 764 584 ne peut garantir une fixation stable et étanche de la pompe ou de la valve sur le col du réservoir. Le document EP-0 006 032 décrit un dispositif de fixation du même type pour obturer un flacon contenant un matériau lyophilisé. Les problèmes rencontrés avec la bague de fixation de ce document sont très proches de ceux du document FR-2 764 584 précité. In the prior art, FR-2 764 584 is already known which describes a fixing device for fixing a pump or a valve on the neck of a tank. This fixing device comprises a fixing ring comprising a peripheral skirt which is engaged axially around the neck to below its shoulder. The skirt is provided with flaps whose free ends point inwards and upwards to come into abutting contact against the shoulder and thus provide a snap of the fixing ring on the neck of the reservoir. This fixing ring can be made of metal or injected molded plastic material. To ensure the seal at the neck, an O-ring is crushed by the fixing ring on the upper edge of the neck. Even if it is considered that the fixing ring of this document can be made with little or no tolerance, the snapping of the flaps under the shoulder of the neck depends on the thickness of the neck seal, its compressibility, and the height of the peripheral reinforcement whose manufacturing tolerances can be large, particularly in the case of a glass tank. Given these variable parameters, it is not guaranteed that the flaps can reach below the shoulder of the neck or that they come into contact with the shoulder with a shoulder. sufficient force to achieve sealing at the neck joint. Therefore, the fixing ring of the document FR-2 764 584 can not guarantee a stable and sealed attachment of the pump or the valve on the neck of the reservoir. EP-006 032 discloses a fastener of the same type for sealing a vial containing a freeze-dried material. The problems encountered with the fixing ring of this document are very close to those of document FR-2 764 584 cited above.
La présente invention a pour but de remédier aux inconvénients précités de l'art antérieur en définissant un dispositif de fixation qui peut venir en prise sous l'épaulement du col pour garantir une fixation et une étanchéité parfaite, sans dépendre de l'épaisseur et de la compressibilité de l'organe d'obturation et de la tolérance de fabrication du col. Un autre but de la présente invention est de réaliser la fixation sous l'épaulement du col avec une compression convenable de l'organe d'obturation.  The present invention aims to overcome the aforementioned drawbacks of the prior art by defining a fixing device which can engage under the shoulder of the neck to ensure a perfect fixation and sealing, without depending on the thickness and the compressibility of the closure member and the manufacturing tolerance of the neck. Another object of the present invention is to achieve fixing under the shoulder of the neck with a suitable compression of the closure member.
Pour atteindre ces buts, la présente invention propose un dispositif de fixation pour obturer un réservoir de produit fluide formé avec un col pourvu d'un renfort périphérique extérieur définissant avec le reste du col un épaulement inférieur, ledit dispositif de fixation comportant une bague de fixation pour maintenir un organe d'obturation sur le col, la bague de fixation comportant une jupe périphérique qui est engagée axialement autour du col jusqu'en dessous de l'épaulement inférieur, ladite jupe étant pourvue d'éléments d'accrochage formant chacun une zone de contact apte à venir potentiellement en prise appuyée avec le col sous l'épaulement inférieur pour fixer la bague sur le col, caractérisé en ce que les zones de contact sont situées à des hauteurs axiales différentes sur la périphérie interne de la jupe sans superposition axiale, de sorte que certaines zones de contact viennent en prise opérante sous l'épaulement inférieur, alors que d'autres zones de contact ne seront jamais en prise opérante sous l'épaulement inférieur du col, ou inversement.  To achieve these aims, the present invention provides a fixing device for closing a fluid reservoir formed with a collar provided with an outer peripheral reinforcement defining with the remainder of the neck a lower shoulder, said fixing device comprising a fixing ring. to maintain a closure member on the neck, the fixing ring comprising a peripheral skirt which is engaged axially around the neck to below the lower shoulder, said skirt being provided with fastening elements each forming a zone contact strip adapted to come into potentially supported engagement with the neck under the lower shoulder to secure the ring to the neck, characterized in that the contact areas are located at different axial heights on the inner periphery of the skirt without axial overlap , so that some contact areas come into operant engagement under the lower shoulder, while others contact ones will never be in operative engagement under the lower shoulder of the neck, or vice versa.
Dans l'art antérieur précité, les extrémités libres des rabats, qui forment des zones de contact, s'étendent toute au même niveau ou à la même hauteur axiale, de sorte qu'il n'y a qu'une seule position d'encliquetage. La présente invention a résolu ce problème en disposant les zones de contact à des niveaux ou hauteurs axiales différentes de sorte qu'au moins certaines zones de contact pourront venir se loger sous l'épaulement avec une force d'appui acceptable, alors que les autres zones de contact pourront soit rester autour du renfort périphérique, soit être situées en dessous de l'épaulement à distance de celui-ci. Il y a autant de positions de fixation qu'il y a de hauteurs axiales différentes pour les zones de contact. En disposant les zones de contact à des hauteurs axiales différentes, on garantit une fixation et une étanchéité acceptable, quelque soit les tolérances de l'organe d'obturation en termes de dimension et de compression et les tolérances de fabrication du col du réservoir. On peut même mettre en œuvre des organes d'obturation présentant des caractéristiques dimensionnelles et de compression nettement différentes. L'étalement des zones de contact sur une certaine hauteur axiale multiplie les possibilités de fixation sous l'épaulement, alors qu'il n'y a qu'une seule possibilité de fixation dans les documents précités de l'art antérieur. In the aforementioned prior art, the free ends of the flaps, which form contact zones, extend all at the same level or at the same axial height, so that there is only one position snap. The present invention has solved this problem by arranging the contact areas at different axial levels or heights so that at least some contact areas can be housed under the shoulder with an acceptable bearing force, while the others Contact zones can either remain around the peripheral reinforcement or be located below the shoulder at a distance from it. There are as many mounting positions as there are different axial heights for the contact areas. By arranging the contact areas at different axial heights, an acceptable fixing and sealing is guaranteed, whatever the tolerances of the closure member in terms of size and compression and the manufacturing tolerances of the neck of the reservoir. It is even possible to implement shutter members with significantly different dimensional and compression characteristics. The spreading of the contact zones over a certain axial height multiplies the possibilities of fixing under the shoulder, whereas there is only one possibility of fixing in the aforementioned documents of the prior art.
Selon une forme de réalisation avantageuse, les éléments d'accrochage sont mobiles radialement pour passer au-dessus du renfort extérieur du col et venir en prise sous l'épaulement inférieur. De préférence, les éléments d'accrochage sont contraints en position déformée lors du passage au-dessus du renfort périphérique extérieur du col.  According to an advantageous embodiment, the hooking elements are radially movable to pass over the outer reinforcement of the neck and engage under the lower shoulder. Preferably, the attachment elements are constrained in the deformed position when passing over the outer peripheral reinforcement of the neck.
Selon un autre aspect intéressant, les zones de contact définissent deux hauteurs axiales distinctes. De cette manière, les zones de contact de chaque niveau sont suffisamment étendues pour garantir une fixation robuste sur le col du réservoir. Il est évident que la multiplication de hauteur ou de niveau pour les zones de contact implique nécessairement une réduction de leur prise sous l'épaulement du col.  According to another interesting aspect, the contact zones define two distinct axial heights. In this way, the contact areas of each level are sufficiently wide to ensure a robust attachment to the neck of the tank. It is obvious that the multiplication of height or level for the contact zones necessarily implies a reduction in their grip under the shoulder of the neck.
Avantageusement, l'organe d'obturation est déformable axialement. Ceci est valable lorsque l'organe d'obturation se présente sous la forme d'un disque ou d'une pastille en élastomère obturant l'ouverture du col. Ceci est également valable lorsque l'organe d'obturation se présente sous la forme d'une pompe ou d'une valve équipée d'un joint de col en élastomère. De préférence, la bague de fixation est réalisée en matière plastique. Cependant, il est également possible de réaliser la bague de fixation en métal. Advantageously, the closure member is axially deformable. This is valid when the closure member is in the form of a disk or an elastomer pellet closing the opening of the neck. This is also valid when the closure member is in the form of a pump or a valve equipped with an elastomeric neck gasket. Preferably, the fixing ring is made of plastic. However, it is also possible to make the metal fixing ring.
Selon une autre caractéristique intéressante de l'invention, le dispositif de fixation comprend en outre une frette de blocage qui est engagée autour de la jupe périphérique dans une position finale de montage pour bloquer au moins une partie des éléments d'accrochage sous l'épaulement inférieur. Bien évidemment, lorsque les éléments d'accrochage assurent à eux seuls la fixation de la bague sur le col, cette frette de blocage n'est pas fonctionnellement nécessaire. Cependant, elle peut quand même être mise en œuvre, simplement pour des raisons esthétiques, pour masquer la bague de fixation. Avantageusement, la frette de blocage est maintenue provisoirement sur la bague de fixation dans une position pré-montée. Ainsi, la bague de fixation et la frette de blocage constituent ensemble une entité solidaire qui est facilement manipulable lors du montage sur un col de réservoir.  According to another advantageous characteristic of the invention, the fastening device further comprises a locking hoop which is engaged around the peripheral skirt in a final mounting position for locking at least part of the fastening elements under the shoulder. inferior. Of course, when the fastening elements alone ensure the fixing of the ring on the neck, the locking ring is not functionally necessary. However, it can still be implemented, simply for aesthetic reasons, to hide the fixing ring. Advantageously, the locking hoop is temporarily held on the fixing ring in a pre-assembled position. Thus, the fixing ring and the locking ring together constitute a unitary entity that is easily manipulated during assembly on a tank neck.
Selon un premier mode de réalisation pratique de l'invention, les éléments d'accrochage comprennent des pattes qui s'étendent librement vers le bas, ces pattes formant intérieurement des rebords orientés vers le haut qui définissent les zones de contact de hauteurs axiales différentes. Avantageusement, le dispositif de fixation comprend en outre une frette de blocage formant une couronne de blocage qui en prise autour des pattes dans une position finale de montage pour bloquer au moins une partie des pattes sous l'épaulement inférieur, cette couronne de blocage étant avantageusement élastiquement déformable. Selon une caractéristique intéressante, la jupe périphérique forme des lames verticales séparées par des fentes axiales, la frette de blocage formant plusieurs branches verticales qui sont disposées dans les fentes axiales entre deux lames verticales en position finale de montage. De cette manière, les branches verticales de la frette de blocage s'imbriquent dans la jupe de la bague de fixation sans créer de surépaisseur radiale. En effet, les branches verticales peuvent présenter une configuration et une épaisseur de paroi identiques aux lames verticales de la jupe périphérique, de sorte que les branches verticales de la frette viennent compléter la jupe périphérique. L'épaisseur de paroi radiale du dispositif de fixation est alors limitée à celle de la jupe. According to a first practical embodiment of the invention, the hooking elements comprise tabs that extend freely downwards, these lugs forming upwardly directed flanges which define the contact zones of different axial heights. Advantageously, the fixing device further comprises a locking ring forming a locking ring which engages around the tabs in a final mounting position for locking at least a portion of the tabs under the lower shoulder, this locking ring being advantageously elastically deformable. According to an interesting feature, the peripheral skirt forms vertical blades separated by axial slots, the locking ring forming several vertical branches which are arranged in the axial slots between two vertical blades in the final mounting position. In this way, the vertical branches of the locking ring interlock in the skirt of the fixing ring without creating radial excess thickness. Indeed, the vertical branches may have a configuration and a wall thickness identical to the vertical blades of the peripheral skirt, so that the vertical branches of the hoop complete the peripheral skirt. The radial wall thickness of the fastener is then limited to that of the skirt.
Selon un second mode de réalisation pratique de l'invention, les éléments d'accrochage comprennent des rabats dont les extrémités libres pointent vers l'intérieur et vers le haut, ces extrémités libres formant les zones de contact dont certaines viennent en prise sous l'épaulement pour ainsi réaliser l'accrochage de la bague de fixation sur le col du réservoir. Ces rabats sont similaires à ceux des documents FR-2 764 584 et EP-0 006 032, excepté en ce qui concerne les hauteurs axiales différenciées des zones de contact. Avantageusement, les rabats comprennent au moins deux rabats courts et au moins deux rabats longs, définissant des zones de contact ayant deux hauteurs axiales distinctes, les rabats courts étant bloqués en-dessous de l'épaulement par une frette de blocage qui est engagée autour de la jupe périphérique. De préférence, les rabats courts forment chacun une base opposée à leur extrémité libre, qui fait davantage saillie radialement vers l'extérieur que la base des rabats longs pour venir en prise avec la frette de blocage. Etant donné que les rabats courts sont assurément disposés en dessous de l'épaulement du col, même si ce sont les rabats longs qui sont en prise avec l'épaulement du col, ils garantissent l'indémontabilité du dispositif de fixation, étant donné qu'ils sont bloqués sous l'épaulement par la frette de blocage. Ainsi, même si un utilisateur malveillant parvenait à dégager les rabats longs d'en dessous de l'épaulement, les rabats courts viendraient en butée contre l'épaulement, et du fait de leur verrouillage par la frette de blocage, le dispositif de fixation ne pourrait pas être retiré du réservoir.  According to a second practical embodiment of the invention, the fastening elements comprise flaps whose free ends point inwards and upwards, these free ends forming the contact zones some of which engage under the shoulder to thus achieve the attachment of the fixing ring on the neck of the tank. These flaps are similar to those of FR-2 764 584 and EP-006 032, except with regard to the differentiated axial heights of the contact zones. Advantageously, the flaps comprise at least two short flaps and at least two long flaps, defining contact zones having two distinct axial heights, the short flaps being locked below the shoulder by a locking collar which is engaged around the peripheral skirt. Preferably, the short flaps each form a base opposite their free end, which projects radially outwardly more than the base of the long flaps to engage the locking ferrule. Since the short flaps are undoubtedly arranged below the shoulder of the neck, even if it is the long flaps which are engaged with the shoulder of the neck, they guarantee the indémontabilité of the fixing device, since they are blocked under the shoulder by the locking collar. Thus, even if a malicious user managed to disengage the long flaps from below the shoulder, the short flaps would abut against the shoulder, and because of their locking by the locking collar, the fastener does not could not be removed from the tank.
La présente invention définit également un réservoir de produit fluide comprenant un col pourvu d'un dispositif de fixation tel que défini ci-dessus pour maintenir un organe d'obturation de manière étanche sur le col.  The present invention also defines a fluid reservoir comprising a neck provided with a fastening device as defined above for maintaining a sealing member sealingly on the neck.
L'esprit de la présente invention réside dans le fait de prévoir des zones de contact ou d'accrochage de la bague de fixation à des niveaux ou hauteurs distinctes différentes ou différenciées de sorte qu'au moins une partie de ces zones de contact puissent venir en prise sous l'épaulement du col sans avoir à se soucier des tolérances dimensionnelles, dynamiques, de compression ou de fabrication des éléments constitutifs. La réalisation du dispositif de fixation en matière plastique, qui par définition présente une certaine élasticité ou fluabilité, permet de conférer une souplesse d'utilisation encore plus grande. En effet, une légère déformation ou fluage des éléments d'accrochage au niveau de leurs zones de contact est envisageable. The spirit of the present invention lies in the fact of providing zones of contact or attachment of the fixing ring at different or differentiated levels or different heights so that at least one part of these contact areas can engage under the shoulder of the neck without having to worry about the dimensional, dynamic, compression or manufacturing tolerances of the constituent elements. The realization of the plastic fastening device, which by definition has a certain elasticity or flowability, allows to confer an even greater flexibility of use. Indeed, a slight deformation or creep of the fastening elements at their contact areas is possible.
L'invention sera maintenant plus amplement décrite, en référence aux dessins joints, donnant à titre d'exemples non limitatifs deux modes de réalisation de l'invention.  The invention will now be more fully described, with reference to the accompanying drawings, giving by way of non-limiting examples two embodiments of the invention.
Sur les figures :  In the figures:
La figure 1 est une vue en perspective fortement agrandie d'un dispositif de fixation selon un premier mode de réalisation de l'invention,  FIG. 1 is a greatly enlarged perspective view of a fastening device according to a first embodiment of the invention,
La figure 2 est une vue en coupe transversale à travers le dispositif de fixation de la figure 1 prêt à être monté sur un col de réservoir,  FIG. 2 is a cross-sectional view through the fastening device of FIG. 1 ready to be mounted on a tank neck;
Les figures 3a et 3b sont des vues partielles en perspective du dispositif de fixation des figures 1 et 2 en cours de montage sur un col de réservoir,  FIGS. 3a and 3b are partial perspective views of the fixing device of FIGS. 1 and 2 while being mounted on a tank neck,
La figure 4 est une vue en perspective d'un dispositif de fixation selon un second mode de réalisation de l'invention prêt à être monté sur un col de réservoir,  FIG. 4 is a perspective view of a fastening device according to a second embodiment of the invention ready to be mounted on a tank neck;
La figure 5 est une vue en coupe transversale du dispositif de fixation de la figure 4 en position finale de montage sur un col de réservoir, et  FIG. 5 is a cross-sectional view of the fastening device of FIG. 4 in the final mounting position on a tank neck, and
Les figures 6 et 7 sont des vues en perspective du dispositif de fixation des figures 4 et 5 en cours de montage sur un col de réservoir.  Figures 6 and 7 are perspective views of the fixing device of Figures 4 and 5 being mounted on a tank neck.
On se référera tout d'abord aux figures 1 et 2 pour décrire la structure d'un dispositif selon le premier mode de réalisation de l'invention. Ce dispositif de fixation comprend une bague de fixation 2 et une frette de blocage 3 destinée à être montée sur un réservoir 1 pour maintenir un organe d'obturation 4. La frette de blocage 3 peut être un élément optionnel dans certains cas d'application. Le réservoir 1 , qui peut être en plastique ou en verre, est formé avec un corps 13 servant à contenir du produit fluide et un col 10 à sa partie supérieure. On voit que le col 10 s'étend à partir du corps 13 avec une section cylindrique 14, puis forme un épaulement 12 vers l'extérieur et se termine par une autre section cylindrique de diamètre supérieure formant un renfort périphérique extérieur 1 1 . L'épaulement 12 forme ainsi la transition entre le renfort 1 1 et le restant du col qui fait la jonction avec le corps 1 . Le col définit également un bord annulaire 15. Le réservoir peut se présenter sous la forme d'un flacon, d'une carpule, d'une seringue pré-remplie, d'une cartouche, etc. Le fond du réservoir est fixe ou amovible. Reference will firstly be made to FIGS. 1 and 2 to describe the structure of a device according to the first embodiment of the invention. This fixing device comprises a fixing ring 2 and a locking ring 3 intended to be mounted on a tank 1 to maintain a closure member 4. The locking ring 3 may be an optional element in some cases of application. The reservoir 1, which may be plastic or glass, is formed with a body 13 for containing fluid and a neck 10 at its upper part. It can be seen that the neck 10 extends from the body 13 with a cylindrical section 14, then forms a shoulder 12 towards the outside and ends with another cylindrical section of greater diameter forming an outer peripheral reinforcement 11. The shoulder 12 thus forms the transition between the reinforcement 1 1 and the remainder of the neck which joins the body 1. The neck also defines an annular edge 15. The reservoir may be in the form of a vial, a carpule, a pre-filled syringe, a cartridge, etc. The bottom of the tank is fixed or removable.
Dans l'exemple représenté, l'organe d'obturation 4 est un disque ou une pastille en matériau élastiquement déformable, comme par exemple du caoutchouc ou tout autre matériau élastomère. Son épaisseur est de l'ordre de 0.5mm à 30mm et sa une dureté de 30 à 70 shore A. L'organe d'obturation 4 va être écrasé sur le bord annulaire 15 du col 10 avec une force permettant de diminuer son épaisseur jusqu'à 40%. Bien que non représenté, l'organe d'obturation peut également se présenter sous la forme d'un bouchon amovible ou fixe, ou encore d'un joint de col associé à un organe de distribution, tel qu'une pompe ou une valve.  In the example shown, the closure member 4 is a disk or a pellet of elastically deformable material, such as rubber or other elastomeric material. Its thickness is of the order of 0.5mm to 30mm and a hardness of 30 to 70 shore A. The shutter member 4 will be crushed on the annular edge 15 of the neck 10 with a force to reduce its thickness up to 40%. Although not shown, the closure member may also be in the form of a removable plug or fixed, or a neck joint associated with a dispensing member, such as a pump or a valve.
La bague de fixation 2 est de préférence réalisée par injection moulage de matière plastique appropriée, comme par exemple du polyéthylène ou polypropylène. La bague de fixation 2 comprend un plateau supérieur sensiblement plan comprenant une couronne centrale 20 définissant intérieurement une ouverture 201 . Le plateau supérieur comprend également des brides radiales 202 qui s'étendent vers l'extérieur à partir de la couronne centrale 20 à la manière de rayons. Les brides 202 sont espacées les unes des autres et se raccordent sur la périphérie externe à des lames verticales axiales 22 qui sont séparées les unes des autres, soit par des fentes axiales 23, soit par des fenêtres axiales 25a, 25b. Des éléments d'accrochage, sous la forme de pattes 26a, 26b s'étendent vers le bas à partir d'entretoises 24a, 24b qui relient ensemble certaines lames 22. Les lames 22, les entretoises 24a, 24b et les pattes 26a, 26b forment ensemble une jupe périphérique 21 qui est à la fois fendue au niveau des fentes 23 et ajourée au niveau des fenêtres 25a, 25b. On peut remarquer que les fentes axiales verticales 23 sont ouvertes à leurs deux extrémités axiales, étant donné que les lames 22 qui sont adjacentes à une fente 23 ne sont raccordées entre elles qu'au niveau de la couronne centrale 20. A l'inverse, les lames 22 qui sont adjacentes à une fenêtre 25b sont reliées ensemble par l'entretoise 24b. Il en est de même pour les lames 22 qui sont adjacentes aux fenêtres 25a : elles sont reliées ensemble par l'entretoise 24a. Dans le mode de réalisation non limitatif des figures 1 à 3b, trois lames 22 sont reliées ensemble par une entretoise 24a et une entretoise 24b, les lames d'extrémité étant adjacentes à deux fentes axiales 23. The fixing ring 2 is preferably made by injection molding of suitable plastic material, such as for example polyethylene or polypropylene. The fixing ring 2 comprises a substantially plane top plate comprising a central ring 20 defining internally an opening 201. The upper plate also comprises radial flanges 202 which extend outwardly from the central crown 20 in the manner of spokes. The flanges 202 are spaced from each other and are connected on the outer periphery to vertical axial blades 22 which are separated from each other, either by axial slots 23 or by axial windows 25a, 25b. Fastening elements, in the form of tabs 26a, 26b extend downwards from spacers 24a, 24b which connect together some blades 22. The blades 22, the spacers 24a, 24b and the tabs 26a, 26b form together a peripheral skirt 21 which is both split at the slots 23 and perforated at the windows 25a, 25b. It may be noted that the vertical axial slots 23 are open at their two axial ends, since the blades 22 which are adjacent to a slot 23 are connected to each other only at the level of the central ring 20. Conversely, the blades 22 which are adjacent to a window 25b are connected together by the spacer 24b. It is the same for the blades 22 which are adjacent to the windows 25a: they are connected together by the spacer 24a. In the nonlimiting embodiment of Figures 1 to 3b, three blades 22 are connected together by a spacer 24a and a spacer 24b, the end plates being adjacent to two axial slots 23.
On peut remarquer que les fenêtres 25a sont plus petites que les fenêtres 25b, étant donné que l'entretoise 24a est plus haute axialement que l'entretoise 24b. En se référant à la figure 2, on peut voir que le seuil des fenêtres forme le rebord supérieur des pattes 26a et 26b. Ces rebords forment des zones de contact 27a, 27b destinées à venir potentiellement en prise sous l'épaulement 12 du col 10. Etant donné que les entretoises 24a et 24b présentent des hauteurs différentes, les zones de contact 27a et 27b sont également situées à des niveaux ou hauteurs différentes, comme cela est clairement visible sur la figure 2. On peut nettement voir que la patte 26a est plus haute que la patte 26b, de sorte que l'on peut qualifier la patte 26a de patte longue et la patte 26b de patte courte. En d'autres termes, la distance séparant la zone de contact 27a de l'organe d'obturation 4 est plus courte que la distance séparant la zone de contact 27b de l'organe d'obturation 4. Il faut noter que chaque patte 26a, 26b ne définit qu'une seule zone de contact 27a, 27b, de sorte que les zones de contact sont réparties sur la périphérie interne de la jupe 21 sans jamais se superposer axialement. On peut également remarquer que les pattes 26a, 26b s'étendent à l'intérieur des entretoises 24a, 24b, de sorte qu'elles sont disposées en retrait par rapport à un bord inférieur 28 formé conjointement par les lames 22 et les entretoises 24a, 24b, comme on peut le voir sur la figure 1 . Les lames 22, à proximité de leur jonction avec les brides 202, forment un gradin rentrant 221 qui peut être pourvu de profils de retenue 222, visibles sur la figure 3b. It should be noted that the windows 25a are smaller than the windows 25b, since the spacer 24a is axially higher than the spacer 24b. Referring to Figure 2, it can be seen that the window sill forms the upper edge of the legs 26a and 26b. These flanges form contact zones 27a, 27b intended to potentially come into engagement under the shoulder 12 of the neck 10. Since the spacers 24a and 24b have different heights, the contact zones 27a and 27b are also located at different locations. different levels or heights, as is clearly visible in Figure 2. It can clearly be seen that the tab 26a is higher than the tab 26b, so that one can qualify the tab 26a of long leg and the tab 26b of short leg. In other words, the distance separating the contact zone 27a from the shutter member 4 is shorter than the distance separating the contact zone 27b from the shutter member 4. It should be noted that each tab 26a , 26b defines only one contact area 27a, 27b, so that the contact areas are distributed over the inner periphery of the skirt 21 without ever being superimposed axially. It may also be noted that the tabs 26a, 26b extend inside the spacers 24a, 24b, so that they are set back with respect to a lower edge 28 formed jointly by the blades 22 and the spacers 24a, 24b, as can be seen in Figure 1. The blades 22, near their junction with the flanges 202, form a re-entrant step 221 which can be provided with retaining profiles 222, visible in Figure 3b.
L'organe d'obturation 4 est disposé ou pré-monté à l'intérieur de la bague de fixation 2, en contact avec le plateau supérieur formé par la couronne centrale 20 et ses brides 202. Le bord périphérique de l'organe d'obturation 4 peut être en prise à l'intérieur du gradin rentrant 221 formé par les lames 22. L'organe d'obturation 4 est accessible de l'extérieur à travers l'ouverture 201 .  The closure member 4 is disposed or pre-mounted inside the fixing ring 2, in contact with the upper plate formed by the central ring 20 and its flanges 202. The peripheral edge of the body shutter 4 can be engaged within the re-entrant step 221 formed by the blades 22. The shutter member 4 is accessible from the outside through the opening 201.
La frette de blocage 3 comprend un disque supérieur 32 définissant un passage central 34 qui est aligné avec l'ouverture 201 de la bague 2. Sur sa périphérie externe, le disque 32 est pourvu de plusieurs branches axiales verticales 33, qui présentent de préférence un profil comparable ou identique à celui des lames 22. On peut par exemple remarquer que les branches 33 forment un gradin rentrant 331 , comme celui 221 des lames 22. Les branches 33 sont reliées ensemble à leur extrémité inférieure par une couronne de blocage 31 qui est de préférence continue sur toute sa périphérie. La frette de blocage 3 peut être réalisée en un matériau relativement souple ou élastiquement déformable, comme du polyéthylène ou du polypropylène. The locking band 3 comprises an upper disc 32 defining a central passage 34 which is aligned with the opening 201 of the ring 2. On its outer periphery, the disc 32 is provided with a plurality of vertical axial branches 33, which preferably have a Likewise, the branches 33 form a re-entrant step 331, like that 221 of the blades 22. The branches 33 are connected together at their lower end by a locking ring 31 which is preferably continuous over its entire periphery. The locking ferrule 3 may be made of a relatively flexible or elastically deformable material, such as polyethylene or polypropylene.
Comme visible sur la figure 1 , la frette de blocage 3 peut être montée de manière provisoire et non définitive sur la bague de fixation 2 en engageant la couronne de blocage 31 autour du gradin rentrant 221 des lames 22 qui sont avantageusement pourvues des profils de retenue 222. La couronne de blocage 31 peut avantageusement être réalisée avec des profils correspondants sur sa face intérieure pour coopérer avec les profils de retenue 222 du gradin rentrant. Dans cette configuration provisoire prémontée, la frette de blocage 3 et la bague de fixation 2 forment ensemble une entité solidaire difficilement démontable. Cette entité solidaire peut être manipulée aisément, notamment lors du montage de la bague de fixation sur un col de réservoir. On peut remarquer que la frette de blocage 3 peut être avantageusement orientée sur la bague de fixation 2 de manière à positionner les branches verticales 33 au-dessus et en regard des fentes axiales verticales 23. Pour ce faire, il peut être prévu des moyens d'orientation ou d'indexation permettant de positionner angulairement la frette 3 sur la bague 2 dans la position représentée sur la figure 1 . As can be seen in FIG. 1, the locking hoop 3 can be temporarily and not definitively mounted on the fixing ring 2 by engaging the locking ring 31 around the re-entrant step 221 of the blades 22 which are advantageously provided with retaining profiles. 222. The locking ring 31 may advantageously be made with corresponding profiles on its inner face to cooperate with retaining profiles 222 of the re-entrant step. In this premounted provisional configuration, the locking ring 3 and the fixing ring 2 together form a rigid entity difficult to dismantle. This integral entity can be easily handled, especially when mounting the fixing ring on a tank neck. It can be noted that the locking ring 3 can be advantageously oriented on the fixing ring 2 so as to position the vertical branches 33 above and opposite the vertical axial slots 23. To this end, it can be provided means for orientation or indexing for angularly positioning the 3 on the ring 2 in the position shown in Figure 1.
En se référant à la figure 3a, on voit que la jupe périphérique 21 est engagée autour du col 10 du réservoir 1 . La frette de blocage 3 est toujours dans sa position provisoire pré-montée. On peut remarquer que la zone de contact 27a de la patte longue 26a ne parvient pas à se loger sous l'épaulement 12 du col 10, alors que la zone de contact 27b de la patte courte 26b est engagée sous l'épaulement 12. On est ici dans un cas d'application dans lequel la hauteur du renfort périphérique 1 1 , l'épaisseur ou la compressibilité de l'élément d'obturation 4 ne permet pas aux pattes longues de s'engager sous l'épaulement 12. Avec une hauteur de renfort périphérique 1 1 ou plus faible, et/ou un organe d'obturation moins épais ou plus souple, les pattes longues 26a auraient pu s'engager sous l'épaulement 12, mais dans ce cas, les zones de contact 27b ne seraient alors plus en contact avec l'épaulement 12. Sur la figure 3a, la lame 22 qui est adjacente à la patte longue 26a est légèrement déformée vers l'extérieur, et est contrainte de rester dans cet état.  Referring to FIG. 3a, it can be seen that the peripheral skirt 21 is engaged around the neck 10 of the tank 1. The locking ring 3 is still in its pre-assembled provisional position. It may be noted that the contact zone 27a of the long tab 26a fails to fit under the shoulder 12 of the neck 10, while the contact zone 27b of the short tab 26b is engaged under the shoulder 12. On is here in an application case in which the height of the peripheral reinforcement 1 1, the thickness or the compressibility of the shutter element 4 does not allow the long tabs to engage under the shoulder 12. With a peripheral reinforcement height 1 1 or lower, and / or a closure member less thick or more flexible, the long legs 26a could have engaged under the shoulder 12, but in this case, the contact areas 27b can not would then be more in contact with the shoulder 12. In Figure 3a, the blade 22 which is adjacent to the long tab 26a is slightly outwardly deformed, and is forced to remain in this state.
Une poussée axiale sur le disque 32 de la frette de blocage 3 va permettre à la couronne de blocage 31 de quitter sa position provisoire prémontée, de glisser avec frottement autour des lames 22 pour gagner la position finale de montage, dans laquelle elle vient se loger en dessous des lames 22 et des entretoises 24a, 24b en contact avec la face externe des pattes 26a, 26b. La couronne de blocage 31 va bloquer les pattes courtes 26b sous l'épaulement 22 et contraindre très fortement les pattes longues 26a contre le renfort périphérique 1 1 . Ceci est représenté sur la figure 3b, sur laquelle on peut voir que la couronne 33 est légèrement déformée vers l'extérieur au niveau de la patte longue 26a qui ne peut s'engager sous l'épaulement 12, ou du moins que partiellement. La lame 22 qui est adjacente à cette patte longue 26a est toujours légèrement inclinée vers l'extérieur. Il est à noter que la lame 22 qui est à la fois adjacente à la patte longue 26a et à la branche 33 a été partiellement découpée sur la figure 3b pour laisser apparaître l'engagement incomplet de la patte longue 26a sous l'épaulement 12. An axial thrust on the disc 32 of the locking collar 3 will allow the locking ring 31 to leave its premounted provisional position, sliding frictionally around the blades 22 to gain the final mounting position, in which it is housed below the blades 22 and spacers 24a, 24b in contact with the outer face of the tabs 26a, 26b. The locking ring 31 will block the short tabs 26b under the shoulder 22 and strongly force the long tabs 26a against the peripheral reinforcement January 1. This is shown in Figure 3b, on which it can be seen that the ring 33 is slightly deformed outwardly at the long tab 26a which can not engage under the shoulder 12, or at least partially. The blade 22 which is adjacent to this long leg 26a is always slightly inclined towards outside. It should be noted that the blade 22 which is both adjacent to the long tab 26a and to the branch 33 has been partially cut in FIG. 3b to reveal the incomplete engagement of the long tab 26a under the shoulder 12.
Selon une caractéristique de l'invention, les branches verticales 33 de la frette de blocage 3 sont disposées dans les fentes verticales axiales 23 de manière à les combler. De ce fait, les branches 33 complètent la jupe périphérique 21 au niveau des fentes 23. On peut également remarquer que la couronne de blocage 31 vient en alignement avec la paroi externe des lames et est jointive avec le bord inférieur 28. Seules les fenêtres 25a, 25b restent ouvertes. En réalisant les branches 23 avec une épaisseur de paroi égale ou inférieure à celles des lames 22, elles s'imbriquent parfaitement dans les fenêtres sans créer de surépaisseur radiale, ni vers l'intérieur ni vers l'extérieur. On obtient ainsi un dispositif de fixation dont l'épaisseur radiale autour du col est limitée à celui de la jupe périphérique 21 . De plus, les branches 33 et la couronne 31 consolident la bague 2.  According to one characteristic of the invention, the vertical branches 33 of the locking band 3 are arranged in the axial vertical slots 23 so as to fill them. Thus, the branches 33 complete the peripheral skirt 21 at the slots 23. It can also be noted that the locking ring 31 comes into alignment with the outer wall of the blades and is contiguous with the lower edge 28. Only the windows 25a , 25b remain open. Realizing the branches 23 with a wall thickness equal to or less than those of the blades 22, they interlock perfectly in the windows without creating radial extra thickness, neither inwardly nor outwardly. A fastening device is thus obtained whose radial thickness around the neck is limited to that of the peripheral skirt 21. In addition, the branches 33 and the ring 31 consolidate the ring 2.
Dans le second mode de réalisation des figures 4 à 7, la bague de fixation 2' comprend une couronne centrale 20' définissant une ouverture 201 '. A partir de la couronne 20' s'étendent quatre brides 202' radialement vers l'extérieur qui se prolongent vers le bas par quatre lames verticales axiales 22' connectant un anneau inférieur 24'. La jupe 21 ' est ici formée par les quatre lames 22' et l'anneau 24'. Les lames 22' sont séparées par des fentes 23' qui s'étendent de la couronne 20' jusqu'à l'anneau 24' : les fentes 23' sont donc ouvertes axialement à leurs extrémités supérieures. Entre chaque paire de lames 22', l'anneau 24' forme un rabat 26a', 26b' qui pointe vers le haut et vers l'intérieur dans une fente respective 23'. Les extrémités libres de ces rabats forment des zones de contact 27a', 27b' aptes à venir en contact appuyé contre l'épaulement 12 du col. Deux de ces rabats 26a' sont longs et les deux autres rabats 26b' sont courts, de sorte que les zones de contact 27a' des rabats 26a' sont plus haut axialement que les zones de contact 27b' des rabats 26b'. En d'autres termes, les hauteurs axiales des zones de contact 27a' et 27b' sont différentes ou distinctes. On peut aussi remarquer que l'épaisseur des rabats est avantageusement égale ou inférieure à l'épaisseur de paroi de l'anneau 24', de sorte que les rabats peuvent venir se loger dans les fentes 23' sans faire saillie ni vers l'intérieur ni vers l'extérieur. Les rabats peuvent donc être entièrement compris dans leurs fentes respectives. De préférence, les rabats sont formés d'origine avec leur orientation vers l'intérieur, car ceci permet d'éviter une opération ultérieure de pliage des rabats vers l'intérieur en dessous de l'épaulement 12 du col. Les rabats, et de ce fait la bague elle-même, seront de préférence moulés en matière plastique dans l'état représenté sur la figure 4. On peut également remarquer que la base 261 des rabats courts 26b' vient en affleurement avec le bord externe de l'anneau 24', alors que la base 262 des rabats longs 26a' est situé en retrait par rapport au bord externe de l'anneau 24', pour des raisons qui seront données ci-après. A proximité de leurs extrémités supérieures, les lames 22' forment extérieurement un cordon d'encliquetage 221 ' destiné à coopérer avec la frette de blocage 3' en position provisoire pré-montée. In the second embodiment of Figures 4 to 7, the fixing ring 2 'comprises a central ring 20' defining an opening 201 '. From the ring 20 'extend four radially outward flanges 202' which extend downwards by four axial vertical blades 22 'connecting a lower ring 24'. The skirt 21 'is here formed by the four blades 22' and the ring 24 '. The blades 22 'are separated by slots 23' which extend from the ring 20 'to the ring 24': the slots 23 'are thus open axially at their upper ends. Between each pair of blades 22 ', the ring 24' forms a flap 26a ', 26b' which points upwardly and inwardly in a respective slot 23 '. The free ends of these flaps form contact areas 27a ', 27b' able to come into contact with the shoulder 12 of the neck. Two of these flaps 26a 'are long and the other two flaps 26b' are short, so that the contact areas 27a 'of the flaps 26a' are higher axially than the contact areas 27b 'of the flaps 26b'. In other words, the axial heights of the contact areas 27a 'and 27b' are different or different. Can also note that the thickness of the flaps is preferably equal to or less than the wall thickness of the ring 24 ', so that the flaps can be housed in the slots 23' without projecting either inwardly or towards the 'outside. The flaps can therefore be fully included in their respective slots. Preferably, the flaps are originally formed with their inward orientation, as this avoids a subsequent operation of folding the flaps inwardly below the shoulder 12 of the neck. The flaps, and thus the ring itself, will preferably be molded of plastic in the state shown in Figure 4. It can also be seen that the base 261 of the short flaps 26b 'flush with the outer edge of the ring 24 ', while the base 262 of the long flaps 26a' is set back from the outer edge of the ring 24 ', for reasons which will be given below. Near their upper ends, the blades 22 'externally form a ratchet bead 221' intended to cooperate with the locking ring 3 'in pre-assembled temporary position.
L'organe d'obturation 4 est logé sous la couronne 20' et les brides 202' entre les lames 22'. L'organe d'obturation peut être identique ou similaire à celui du premier mode de réalisation.  The shutter member 4 is housed under the ring 20 'and the flanges 202' between the blades 22 '. The shutter member may be the same or similar to that of the first embodiment.
La frette de blocage 3' comprend un disque supérieur 32' qui définit un passage central 34' qui est aligné avec l'ouverture 201 ', comme visible sur la figure 5. Une enveloppe sensiblement cylindrique 33' s'étend vers le bas à partir de la périphérie externe du disque 20'. Cette enveloppe 33' forme à son extrémité inférieure une couronne de blocage 31 ' qui forme intérieurement un logement d'encliquetage.  The locking ferrule 3 'comprises an upper disc 32' which defines a central passage 34 'which is aligned with the opening 201', as can be seen in FIG. 5. A substantially cylindrical envelope 33 'extends downwards from the outer periphery of the disk 20 '. This envelope 33 'forms at its lower end a locking ring 31' which internally forms a latching housing.
Dans une position provisoire pré-montée représentée sur la figure 6, la couronne 31 ' est en prise avec le cordon d'encliquetage 221 ' des lames 22', de manière à constituer une entité solidaire facilement manipulable, notamment lors du montage sur le col 10. L'anneau 24' est engagé axialement autour du renfort 1 1 du col jusqu'à ce que les rabats courts 26b' se logent sous l'épaulement 12 du col. Ensuite, une force d'appui supplémentaire sur la frette 3' permet de vérifier s'il est possible de faire descendre l'anneau 24' jusqu'à ce que les rabats longs 26a' se logent également sous l'épaulement 12. Si ce n'est pas possible en raison de l'épaisseur et/ou de la compression de l'organe d'obturation et/ou de la tolérance de fabrication du col, l'accrochage de la bague 2' est assurée par les rabats courts 26b' dont les zone de contact 27b' sont en contact appuyé contre l'épaulement 12. Le rabats longs 26a' restent alors engagés autour du renfort 1 1 , comme visible sur la figure 6. Cependant, ils sont entièrement logés dans leurs fenêtres respectives 23', d'autant plus que leurs bases 262 est en retrait par rapport au bord externe de l'anneau 24'. Une force suffisante sur la frette 3' permet de la faire descendre autour de la jupe 21 ' à partir de la position pré-montée de la figure 6 pour atteindre la position finale de montage de la figure 7. La couronne 31 ' est alors en prise encliquetée autour de l'anneau 24'. Avantageusement, la frette 3' forme juste au-dessus de la couronne 31 ' une nervure 31 1 qui appuie contre les rabats courts 26b' pour les bloquer sous l'épaulement 12, mais pas contre les rabats longs 26a', du fait que leur base 262 est situé en retrait. Ainsi, au cas où les rabats longs 26a' venaient à être désengagés d'en-dessous de l'épaulement 12, l'accrochage du dispositif de fixation serait tout de même assuré par les rabats courts 26b' qui sont bloqués par la nervure 31 1 de la frette 3'. In a provisional position pre-assembled shown in Figure 6, the ring 31 'is engaged with the ratchet bead 221' of the blades 22 ', so as to form a solidary entity easily manipulated, especially during mounting on the neck 10. The ring 24 'is engaged axially around the reinforcement 1 1 of the neck until the short flaps 26b' are housed under the shoulder 12 of the neck. Then, an additional support force on the fret 3 'makes it possible to check if it is possible to make down the ring 24 'until the long flaps 26a' are also housed under the shoulder 12. If this is not possible because of the thickness and / or compression of the body of shutter and / or manufacturing tolerance of the neck, the attachment of the ring 2 'is provided by the short flaps 26b' whose contact areas 27b 'are in contact pressed against the shoulder 12. The long flaps 26a' then remain engaged around the reinforcement 1 1, as visible in Figure 6. However, they are fully housed in their respective windows 23 ', especially since their bases 262 is set back from the outer edge of the ring 24 . A sufficient force on the hoop 3 'makes it possible to lower it around the skirt 21' from the pre-assembled position of FIG. 6 to reach the final mounting position of FIG. 7. The ring 31 'is then in plug snapped around the ring 24 '. Advantageously, the hoop 3 'forms just above the crown 31' a rib 31 1 which bears against the short flaps 26b 'to lock them under the shoulder 12, but not against the long flaps 26a', because their base 262 is set back. Thus, in the case where the long flaps 26a 'were to be disengaged from below the shoulder 12, the fastening of the fastening device would still be ensured by the short flaps 26b' which are blocked by the rib 31 1 of the band 3 '.
Bien que les figures 1 à 7 illustrent des bagues présentant des zones de contact définissant deux hauteurs axiales différentes, on peut envisager une bague avec davantage de zones de contact de hauteurs différentes. Toutefois, deux hauteurs axiales différentes permettent de couvrir un domaine de tolérance relativement important, tout en conservant une tenue et une étanchéité suffisantes. Certaines zones de contact 27a, 27a' viennent en prise opérante sous l'épaulement inférieur 12, alors que d'autres zones de contact 27b, 27b' ne seront jamais en prise opérante sous l'épaulement inférieur 12 du col 10, ou inversement. Les zones de contact qui restent inopérantes sont soit situées en-dessous de l'épaulement 12 sans le toucher, soit au niveau du renfort 1 1 sans jamais parvenir sous l'épaulement 12.  Although FIGS. 1 to 7 illustrate rings having contact zones defining two different axial heights, it is possible to envisage a ring with more contact zones of different heights. However, two different axial heights can cover a relatively large tolerance range, while maintaining sufficient strength and tightness. Some contact areas 27a, 27a 'come into operant engagement under the lower shoulder 12, while other contact areas 27b, 27b' will never be operatively engaged under the lower shoulder 12 of the neck 10, or vice versa. The contact zones that remain inoperative are either located below the shoulder 12 without touching it, or at the level of the reinforcement 1 1 without ever reaching under the shoulder 12.
Grâce à l'invention, on obtient une bague de fixation qui peut être réalisées de manière standard, qui peut être associée à des organes d'obturation de natures diverses, et qui peut être montée sur des réservoirs ayant des tolérances de col relativement grandes. Les pattes 26a, 26b et les rabats rentrants 26a', 26b' ne constituent que deux modes de réalisation particuliers non limitatifs : en effet, on peut décliner la présente invention avec n'importe quel type d'élément d'accrochage apte à venir en prise avec un épaulement inférieur formé par le col d'un réservoir. Thanks to the invention, a fixing ring is obtained which can be produced in a standard manner, which can be associated with organs various types of shutter, and which can be mounted on tanks with relatively large neck tolerances. The tabs 26a, 26b and the reentrant flaps 26a ', 26b' are only two particular non-limiting embodiments: indeed, the present invention can be declined with any type of fastening element capable of coming into effect. taken with a lower shoulder formed by the neck of a tank.
Grâce à l'invention, l'encombrement du dispositif de fixation est fortement réduit, étant donné que la frette de blocage 3 ne crée pas de surépaisseur au niveau de la jupe périphérique de la bague de fixation.  Thanks to the invention, the size of the fixing device is greatly reduced, since the locking ring 3 does not create extra thickness at the peripheral skirt of the fixing ring.

Claims

Revendications claims
1 .- Dispositif de fixation pour obturer un réservoir de produit fluide1 .- Fixing device for closing a fluid reservoir
(1 ) formé avec un col (10) pourvu d'un renfort périphérique extérieur (1 1 ) définissant avec le reste du col un épaulement inférieur (12), ledit dispositif de fixation comportant une bague de fixation (2) pour maintenir un organe d'obturation (4) sur le col (10), la bague de fixation(1) formed with a neck (10) provided with an outer peripheral reinforcement (1 1) defining with the remainder of the neck a lower shoulder (12), said fixing device comprising a fixing ring (2) for holding an organ shutter (4) on the neck (10), the fixing ring
(2) comportant une jupe périphérique (21 ) qui est engagée axialement autour du col jusqu'en dessous de l'épaulement inférieur (12), ladite jupe (21 ) étant pourvue d'éléments d'accrochage (26a, 26b ; 26a', 26b') formant chacun une zone de contact (27a, 27b ; 27a', 27b') apte à venir potentiellement en prise appuyée avec le col (10) sous l'épaulement inférieur (12) pour fixer la bague (2) sur le col (10), (2) comprising a peripheral skirt (21) which is engaged axially around the neck to below the lower shoulder (12), said skirt (21) being provided with hooking elements (26a, 26b; 26a; , 26b ') each forming a contact zone (27a, 27b; 27a', 27b ') adapted to potentially engage with the neck (10) under the lower shoulder (12) to secure the ring (2) to the neck (10),
caractérisé en ce que les zones de contact (27a, 27b ; 27a', 27b') sont situées à des hauteurs axiales différentes sur la périphérie interne de la jupe (21 ) sans superposition axiale, de sorte que certaines zones de contact (27a; 27a') viennent en prise opérante sous l'épaulement inférieur (12), alors que d'autres zones de contact (27b ; 27b') ne seront jamais en prise opérante sous l'épaulement inférieur (12) du col (10), ou inversement.  characterized in that the contact areas (27a, 27b; 27a ', 27b') are located at different axial heights on the inner periphery of the skirt (21) without axial superimposition, so that certain contact areas (27a; 27a ') engage operatively under the lower shoulder (12), while other contact areas (27b; 27b') will never be operatively engaged under the lower shoulder (12) of the neck (10), Or vice versa.
2.- Dispositif de fixation selon la revendication 1 , dans lequel les éléments d'accrochage (26a, 26b ; 26a', 26b') sont mobiles radialement pour passer au-dessus du renfort extérieur (1 1 ) du col et venir en prise sous l'épaulement inférieur (12). 2. Fastening device according to claim 1, wherein the fastening elements (26a, 26b; 26a ', 26b') are radially movable to pass over the outer reinforcement (1 1) of the neck and come into engagement under the lower shoulder (12).
3.- Dispositif de fixation selon la revendication 1 ou 2, dans lequel les zones de contact (27a, 27b ; 27a', 27b') définissent deux hauteurs axiales distinctes. 3. Fastening device according to claim 1 or 2, wherein the contact zones (27a, 27b; 27a ', 27b') define two distinct axial heights.
4. - Dispositif de fixation selon l'une quelconque des revendications précédentes, dans lequel l'organe d'obturation (4) est déformable axialement. 4. - Fixing device according to any one of the preceding claims, wherein the closure member (4) is axially deformable.
5. - Dispositif de fixation selon l'une quelconque des revendications précédentes, dans lequel la bague de fixation (2) est réalisée en matière plastique. 5. - Fixing device according to any one of the preceding claims, wherein the fixing ring (2) is made of plastic material.
6. - Dispositif de fixation selon l'une quelconque des revendications précédentes, comprenant en outre une frette de blocage (3) qui est engagée autour de la jupe périphérique (21 ) dans une position finale de montage pour bloquer au moins une partie des éléments d'accrochage (26a, 26b ; 26a', 26b') sous l'épaulement inférieur (12). 6. - Fixing device according to any one of the preceding claims, further comprising a locking ring (3) which is engaged around the peripheral skirt (21) in a final mounting position for locking at least a portion of the elements hooking means (26a, 26b; 26a ', 26b') under the lower shoulder (12).
7. - Dispositif de fixation selon la revendication 6, dans lequel la frette de blocage (3) est maintenue provisoirement sur la bague de fixation (2) dans une position pré-montée. 7. - Fastening device according to claim 6, wherein the locking ring (3) is held temporarily on the fixing ring (2) in a pre-assembled position.
8. - Dispositif de fixation selon l'une quelconque des revendications précédentes, dans lequel les éléments d'accrochage (2) comprennent des pattes (26a, 26b) qui s'étendent librement vers le bas, ces pattes (26a, 26b) formant intérieurement des rebords orientés vers le haut qui définissent les zones de contact (27a, 27b) de hauteurs axiales différentes, chaque patte (26a, 26b) formant une seule zone de contact (27a, 27b). 8. - Fastening device according to any one of the preceding claims, wherein the fastening elements (2) comprise tabs (26a, 26b) which extend freely downwards, these tabs (26a, 26b) forming internally upwardly directed flanges which define the contact areas (27a, 27b) of different axial heights, each tab (26a, 26b) forming a single contact area (27a, 27b).
9. - Dispositif de fixation selon l'une quelconque la revendication 8, comprenant en outre une frette de blocage (3) formant une couronne de blocage (31 ) qui en prise autour des pattes (26a, 26b) dans une position finale de montage pour bloquer au moins une partie des pattes (26a, 26b) sous l'épaulement inférieur (12), cette couronne de blocage (31 ) étant avantageusement élastiquement déformable. 9. - Fixing device according to any claim 8, further comprising a locking ring (3) forming a locking ring (31) which engages around the tabs (26a, 26b) in a final mounting position to block at least a portion of the tabs (26a, 26b) under the lower shoulder (12), the locking ring (31) being advantageously elastically deformable.
10. - Dispositif de fixation selon l'une quelconque la revendication 9, dans lequel la jupe périphérique (21 ) forme des lames verticales (22) séparées par des fentes axiales (23), la frette de blocage (3) formant plusieurs branches verticales (33) qui sont disposées dans les fentes axiales (23) entre deux lames verticales (22) en position finale de montage. 10. - Fastening device according to any one of claim 9, wherein the peripheral skirt (21) forms vertical blades (22) separated by axial slots (23), the locking ring (3) forming a plurality of vertical branches. (33) which are arranged in the axial slots (23) between two vertical blades (22) in the final mounting position.
1 1 . - Dispositif de fixation selon l'une quelconque des revendications 1 à 7, dans lequel les éléments d'accrochage comprennent des rabats (26a', 26b') dont les extrémités libres pointent vers l'intérieur et vers le haut, ces extrémités libres formant les zones de contact (27a', 27b') dont certaines viennent en prise sous l'épaulement (12) pour ainsi réaliser l'accrochage de la bague de fixation (2) sur le col (10) du réservoir (1 ). 1 1. Fastening device according to any one of claims 1 to 7, wherein the fastening elements comprise flaps (26a ', 26b') whose free ends point inwards and upwards, these free ends forming the contact areas (27a ', 27b'), some of which engage under the shoulder (12) to thus effect the attachment of the fixing ring (2) on the neck (10) of the reservoir (1).
12. - Dispositif de fixation selon l'une quelconque la revendication12. - Fixing device according to any claim
1 1 , dans lequel les rabats (26a', 26b') comprennent au moins deux rabats courts (26b') et au moins deux rabats longs (26a'), définissant des zones de contact (27a', 27b') ayant deux hauteurs axiales distinctes, les rabats courts (26b') étant bloqués en-dessous de l'épaulement (12) par une frette de blocage (3) qui est engagée autour de la jupe périphérique (21 ). 1 1, wherein the flaps (26a ', 26b') comprise at least two short flaps (26b ') and at least two long flaps (26a'), defining contact zones (27a ', 27b') having two heights separate axles, the short flaps (26b ') being locked below the shoulder (12) by a locking band (3) which is engaged around the peripheral skirt (21).
13. - Dispositif de fixation selon l'une quelconque la revendication13. - Fixing device according to any claim
12, dans lequel les rabats courts (26b') forment chacun une base (261 ) opposée à leur extrémité libre, qui fait davantage saillie radialement vers l'extérieur que la base (262) des rabats longs (26a') pour venir en prise avec la frette de blocage (3). 12, wherein the short flaps (26b ') each form a base (261) opposite their free end, which projects radially outwardly more than the base (262) of the long flaps (26a') to engage with the locking collar (3).
14.- Réservoir de produit fluide (1 ) comprenant un col (10) pourvu d'un dispositif de fixation selon l'une quelconque des revendications précédentes pour maintenir un organe d'obturation (4) sur le col (10). 14. Fluid reservoir (1) comprising a neck (10) provided with a fixing device according to any one of the preceding claims for holding a closure member (4) on the neck (10).
EP14713151.0A 2013-02-14 2014-02-11 Fastening device for sealing a fluid product reservoir Active EP2956379B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1351270A FR3001953B1 (en) 2013-02-14 2013-02-14 FIXING DEVICE FOR SEPARATING A FLUID PRODUCT TANK.
PCT/FR2014/050255 WO2014125201A1 (en) 2013-02-14 2014-02-11 Fastening device for sealing a fluid product reservoir

Publications (2)

Publication Number Publication Date
EP2956379A1 true EP2956379A1 (en) 2015-12-23
EP2956379B1 EP2956379B1 (en) 2017-04-12

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EP14713151.0A Active EP2956379B1 (en) 2013-02-14 2014-02-11 Fastening device for sealing a fluid product reservoir

Country Status (10)

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US (1) US9802736B2 (en)
EP (1) EP2956379B1 (en)
JP (1) JP6306613B2 (en)
KR (1) KR102190758B1 (en)
CN (1) CN105008238B (en)
DK (1) DK2956379T3 (en)
FR (1) FR3001953B1 (en)
IL (1) IL240058B (en)
PL (1) PL2956379T3 (en)
WO (1) WO2014125201A1 (en)

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FR3067013B1 (en) * 2017-06-06 2021-05-28 Albea Services ASSEMBLY OF A DISTRIBUTION DEVICE FOR BOTTLE
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Also Published As

Publication number Publication date
CN105008238B (en) 2017-09-29
PL2956379T3 (en) 2017-09-29
CN105008238A (en) 2015-10-28
FR3001953A1 (en) 2014-08-15
US9802736B2 (en) 2017-10-31
WO2014125201A1 (en) 2014-08-21
EP2956379B1 (en) 2017-04-12
FR3001953B1 (en) 2016-01-01
KR20150117283A (en) 2015-10-19
JP6306613B2 (en) 2018-04-04
DK2956379T3 (en) 2017-07-24
IL240058B (en) 2018-12-31
IL240058A0 (en) 2015-09-24
US20150360826A1 (en) 2015-12-17
JP2016511726A (en) 2016-04-21
KR102190758B1 (en) 2020-12-14

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