EP2459317B1 - Removable attachment system - Google Patents

Removable attachment system Download PDF

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Publication number
EP2459317B1
EP2459317B1 EP10752086.8A EP10752086A EP2459317B1 EP 2459317 B1 EP2459317 B1 EP 2459317B1 EP 10752086 A EP10752086 A EP 10752086A EP 2459317 B1 EP2459317 B1 EP 2459317B1
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EP
European Patent Office
Prior art keywords
sleeve
ring
locking
neck
sectors
Prior art date
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Application number
EP10752086.8A
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German (de)
French (fr)
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EP2459317A1 (en
Inventor
Alain Behar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar France SAS
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Aptar France SAS
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Publication date
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Publication of EP2459317A1 publication Critical patent/EP2459317A1/en
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Classifications

    • 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

Definitions

  • the present invention relates to a fastening system for fixing a dispensing member, such as a pump or a valve, on a neck of a fluid reservoir to form a fluid dispenser, the system comprising a fastening ring having receiving means for receiving the dispensing member and hooking means for engaging around the neck of the reservoir.
  • These attachment means generally comprise flexible axial tabs separated by axial slots.
  • the system includes a locking sleeve engaged around the ring to lock the tabs engaged around the neck.
  • the preferred fields of application of the present invention are those of perfumery, cosmetics or even pharmacy.
  • the fixing ring comprises receiving means, such as a housing, for receiving the dispensing member, which may for example comprise a projecting collar intended to be engaged by snapping into the housing of the ring.
  • the fixing ring also comprises a fastening skirt of substantially cylindrical shape forming the flexible tabs which define an internal wall possibly provided with one or more attachment profile (s) intended (s) to come engaged with the neck of the tank.
  • the neck of the tank forms a projecting annular external reinforcement under which the attachment profile (s) engage in the final assembly position.
  • the locking sleeve serves to prevent the disengagement of the internal profiles of the legs of the skirt from below the external protruding protruding collar.
  • the locking sleeve maintains the snap profiles of the ring captive of the neck of the tank.
  • it is intended to achieve the skirt of the ring with longitudinal axial slots so as to divide the skirt into several tabs separated by slots. It is necessary that the skirt of the ring may deform radially outwardly during the passage of the neck reinforcement.
  • the function of the locking sleeve is to prevent this radial deformation towards the outside of the skirt of the ring, once the fastening profiles are engaged below the reinforcement of the neck.
  • the final mounting position in which the locking sleeve prevents the ring from disengaging from the neck, is a definitive position, in that it is no longer possible to remove the locking sleeve from the ring for allow removal of the ring from the neck. Therefore, to remove a dispensing assembly using such a fastening system, it is necessary to destroy the sleeve, the ring or the neck. Indeed, the holding of the locking sleeve is considerable so that its tensile strength can not be overcome by pulling axially above without damaging or destroying.
  • Disassembling the dispenser i.e. removing the dispensing assembly from the reservoir, may, however, be useful in some circumstances.
  • a screw fastening system is generally used.
  • the ring fastening system and locking ring is not suitable, since the establishment of the sleeve on the ring is generally final.
  • Disassembly can also be useful to be able to recycle the distributor by separating these different constituent materials. This is theoretically possible with the fastening ring system and locking sleeve, but requires the destruction of the ring, the sleeve or collar, which is a random operation and therefore difficult to industrialize.
  • the present invention proposes that the locking sleeve forms a plurality of locking sectors intended to engage the tabs to lock them around the neck and several unlocking sectors out of contact with the ring, the sleeve being movable around of the ring between a mounting position in which the locking sectors are engaged with the tabs and the unlocking sectors are located at the slots, and a disassembly position in which the locking sectors are located at the slots and the unlocking sectors are located at the legs to allow them to deform to free themselves from their grip with the collar.
  • the locking sleeve is movable in pure rotation without axial component around the fixing ring, which itself remains perfectly static with respect to the neck. It is the relative rotational movement between the sleeve and the ring which will allow to go from the mounting position to the disassembly position, in which the fastening system can again be removed from the neck.
  • the present invention provides a particularly clever arrangement that resides in one-piece construction of the ring and the sleeve, the latter being connected together by bridges of breakable material.
  • indexation relative two parts is automatically performed by their one-piece molding, and we no longer have to worry about the angular position of the sleeve relative to the ring.
  • the ring comprises a crenellated skirt thus forming the tabs and the slots, a plate intended to bear on the neck, with a seal possibly interposed, and a receiving housing, advantageously by snapping, for the distribution organ.
  • the sleeve can be initially connected by lower internal edges of the locking sectors to the upper outer edge of the skirt of the ring integrally, axially above each leg.
  • the locking sectors penetrate at least partially into the slots in disassembly position, thus preventing the return to the mounting position.
  • the locking sectors will fulfill an additional function of locking in disassembly position, in that the insertion of the locking sectors in the corresponding slots prevents any subsequent free rotation of the sleeve on the ring.
  • the locking sectors then perform a function of latch or latch being received, without possible return, inside the slots.
  • the neck forms rotational locking means to prevent free rotation of the ring on the neck.
  • These locking means may be in various forms, and more particularly in the form of protruding or recessed profiles at any point of the neck likely to interfere with the ring. It is not necessary that the ring is perfectly static in rotation on the neck: it is only necessary that the rotation of the ring on the neck is not free, but on the contrary limited by an abutment.
  • the sleeve, and more particularly the locking sectors only come into contact with the ring at the level of the tabs. In this way, the friction and clamping forces between the sleeve and the ring are concentrated at the tabs.
  • the unlocking sectors are wider than the legs. This facilitates the positioning of the tabs at the unlocking sectors.
  • a clearance space is preferably present between a tab and its unlocking sector in disassembly position.
  • the locking sectors are formed by studs which protrude inwardly from the sleeve of a substantially cylindrical inner wall.
  • the unlocking sectors are formed by a portion of the sleeve connecting the locking sectors to each other, so that the sleeve is continuous over its entire periphery.
  • the unlocking sectors are thus constituted by material, and more particularly a wall, but it is not in contact with the ring so as to create the clearance space.
  • the sleeve has a cylindrical outer wall which is interrupted at the locking sectors which form recesses.
  • the fastening system may further comprise a trim band, preferably metal, engaged around the sleeve to hide it.
  • a trim band preferably metal
  • This hoop can even fulfill a locking function, in particular when the sleeve is not continuous over its entire periphery (unlocking sectors formed by indentations or slots).
  • the principle of the invention lies in the fact of removing the locking of the tabs by a pure rotational movement of the locking sleeve. This principle can all the more easily be implemented that it does not require indexing between the sleeve and the ring and that locking in disassembled position is assured without complicating the configuration of the system.
  • the fixing system of the invention comprises a fixing ring 1 associated with a locking sleeve 2.
  • the fastening system is associated with a dispensing member 3, which may be a pump or a valve.
  • the fastening system and the dispensing member constitute a dispensing assembly, which may optionally be completed by a trim band 5.
  • This dispensing assembly is intended to be mounted in a fixed and tight manner on a neck 4 of a reservoir. of fluid, thus constituting a fluid dispenser, such as can be meet in the fields of perfumery, cosmetics or pharmacy. It is a dispenser whose actuation of the dispenser is done manually using one or more finger (s).
  • the dispensing member 3 comprises a body 31 provided at its lower end with a fluid inlet 32 which may optionally be provided with a dip tube (not shown). At its upper end, the body 31 forms a collar (not shown) which protrudes radially outwards and which is generally used for fixing the dispensing member 3 in the fastening system of the invention, as it is will see below.
  • the dispensing member 3 also comprises an actuating rod (not shown) on which is mounted a pusher 33, advantageously forming a dispensing orifice 34.
  • the pusher 33 is axially displaceable back and forth against a return spring (not shown). At each actuation, the fluid product, in metered form or not, is dispensed through the orifice 34. This is a quite conventional design for a pump or a valve in the aforementioned fields of application.
  • the neck 4 of the reservoir (not shown) comprises an annular shoulder 41 which may be considered as already integral part of the tank body. From this shoulder 41, the neck forms a first narrowed section 42 which is surmounted by an annular reinforcement 43 which protrudes outwardly. The upper end of the neck is formed by an annular edge 45 which defines the opening 40 of the reservoir.
  • the neck 4 is provided with rotational locking means 44, which are here formed at the annular reinforcement 43. However, it is also possible to form these locking means at another location of the neck 4, as for example at the section 42, the shoulder 41 or the annular edge 45.
  • the function of these rotation locking means 44 is to lock the fixing ring 1 in rotation on the neck 4 so that it does not rotate freely.
  • the rotational locking means 44 on the figure 1 are in the form of notches or recesses having for example a projecting edge on which the fixing ring abuts and prevents it from turning freely.
  • the projecting ridges make it possible to block rotation in both directions. However, blocking only in one direction is also possible.
  • the locking means are preferably in the form of a raised or recessed configuration, but it is also possible to envisage locking means in the form of materials making it possible to increase the frictional forces between the fixing ring 1 and the neck 4.
  • the fixing ring 1 comprises, quite conventionally, receiving means 11 which are designed to receive the dispensing member 3 in a fixed and sealed manner, for example by snapping its protruding flange into a specially adapted housing which is formed by receiving means 11. Other reception techniques can of course be used to receive in a fixed and sealed manner the dispensing member 3 in the fixing ring 1.
  • the fixing ring forms an opening 13 which is intended for the passage of the actuating rod of the dispensing member 3.
  • the receiving means form an annular plate 14 which is intended to come into abutment, with a neck seal possibly interposed, on the annular upper edge 45 of the neck 4.
  • the annular plate 14 therefore has mainly a sealing function between the fixing ring 1 and the neck 4 of the tank.
  • the plate 14 is extended on its outer periphery by a cylindrical skirt 15 which extends downwards.
  • the skirt 15 is crenellated so as to define a plurality of axial tabs 16 separated by axial slots 18. This is clearly visible on the figure 2 .
  • the skirt 15 forms here five legs flexible axial 16 and five axial slots 18 which are evenly distributed around the perimeter of the skirt 15.
  • a function of the slots 18 is to give some flexibility to the axial tabs 16. In this way, they are slightly deformable, particularly in the direction radial outward to allow mounting of the fixing ring 1 on the neck 4, as will be seen below.
  • the inner wall of the lugs 16 is formed with one or more attachment profile (s) 17 intended (s) to be housed under the annular reinforcement 43 at the narrowed section 42.
  • the slots 18 are wider than the tabs 16.
  • the slots 18 are open downwards and extend upwards to the vicinity of the plate 14.
  • the locking sleeve 2 has a generally cylindrical general configuration.
  • the sleeve defines an inner wall 2i and an outer wall 2e which are both substantially cylindrical: "their cylindricity" being interrupted only at the level of several locking sectors 26 which protrude inwards with respect to the inner wall 2i.
  • the external wall 2e is also hollowed out at the level of the locking sectors 26, but it is also conceivable to make the external wall 2e perfectly cylindrical, that is to say by filling the recesses formed at the locking sectors 26.
  • These locking sectors 26 are here five in number and are evenly distributed around the periphery of the sleeve 2, corresponding to the lugs 16 of the skirt 15.
  • the locking sectors 26 are separated by unlocking sectors 28 which form part of the sleeve and internal walls 2i and external 2e.
  • the unlocking sectors 28 form an integral part of the greater cylindrical part of the sleeve 2.
  • the wall thickness at the locking sectors 26 may be identical to that of the unlocking sectors 28.
  • the wall thickness of the locking sectors is greater than that of the sectors.
  • Unlocking 28 It can be noted that the sleeve 2 is continuous over its entire periphery at the locking sectors 26 and unlocking 28.
  • the unlocking sectors 28 in the form of windows or windows. It is possible to indent or partially indent the unlocking sectors 28.
  • the purpose of the locking sectors 26 is to define an internal diameter which is smaller than the diameter at the level of the unlocking sectors 28.
  • the locking sectors 26 may extend over the entire height of the sleeve 2, or only on a lower part, as is the case in the figures. It is however preferable that the sectors 26 extend only on a lower part of the sleeve to perform an additional blocking function in disassembled position, as will be seen below.
  • the locking sleeve 2 is intended to be engaged around the fixing ring 1 so as to block the lugs 16 of the ring 1 around the neck 4.
  • This is a quite conventional function for a sleeve of classic lock.
  • the particularity of the present invention lies in the fact that the locking sleeve 2 comes into contact with the ring 1 at the locking sectors 26, while the unlocking sectors 28 remain out of contact.
  • the fixing ring 1 is intended to be mounted on the neck 4 so that the tabs 16 surround the neck 4, with the attachment profiles 17 engaged under the annular reinforcement 43 at the sector narrowed 42. This is visible on the figure 4 .
  • the tabs 16 are flexible, they alone are not sufficient to maintain in a stable and sealed manner the fixing ring on the neck 4.
  • the dispenser can be actuated by the user by pressing axially on the pusher 33 so as to move it axially back and forth.
  • the engagement of the lugs 16 around the neck 4 locked in position by the sleeve 2 ensures a perfect attachment of the dispensing member 3 on the tank neck. Sealing is ensured by the crushing of the plate 14 (or the neck seal) on the upper edge 45 of the neck.
  • the unlocking sectors 28 have an internal diameter greater than the external diameter of the skirt 15 and lugs 16, there is an intermediate gap E which allows the lugs 16 to deform freely radially outwardly so that they can disengage from below the annular reinforcement 43.
  • the clearance space is even greater since it is limited only by the inner wall of the trim ring 5 engaged around of the sleeve 2.
  • the locking sectors 26 are partially engaged inside the slots 18. This is possible because the height of the sectors of v The lock 26 is less than the height of the slots 18.
  • the locking sectors 26 are trapped in the slots 18, thus preventing free rotation of the sleeve 2 around the ring 1 in the disassembly position.
  • the engagement of the sectors 26 in the slots 18 also prevents an axial pulling withdrawal of the sleeve 2.
  • the blocking of the sectors 26 inside the slots 18 thus ensures that it is no longer possible to return to the mounting position from the dismantling position.
  • This particular function locking sectors is particularly useful when it is desirable to not be able to reassemble the distribution assembly on the tank.
  • the fixing ring 1 and the locking sleeve 2 can be made separately, for example by injection molding plastic material. It is then necessary when mounting the fastening system to angularly position the sleeve 2 relative to the ring 1 so that the locking sectors 26 are positioned correctly relative to the tabs 16. This requires an indexing of the ring and the sleeve and appropriate tools to position them angularly relative to each other. To avoid this indexing and positioning operation, the present invention provides for integrally molding the ring 1 and the sleeve 2. The two parts are then connected together by bridges of breakable material 12 which are intended to be broken during the engagement of the sleeve 2 around the ring 1.
  • bridges of breakable material 12 are for example located at the lower inner edge 27 of the locking sectors 26 which is in contact with the upper outer edge 19 of the skirt 15, which also forms the peripheral edge of the plate 14. This is clearly visible on the figure 3 .
  • the sleeve 2 is connected to the ring 1 by five bridges of breakable material located at each of the locking sectors 26.
  • the problem of mutual indexing of the two parts no longer arises, since the mutual orientation of the two parts stems directly from their one-piece molding.
  • the sleeve 2 is in contact with the ring only at the level of the locking sectors 26 at the exit of the mold, but also in the final mounting position in which the locking sectors 26 are in contact with the tabs. we can see it on the figure 3 the clearance space E is already present between the unlocking sectors 28 and the skirt 15 at the outlet of the mold.
  • the present invention it is possible to disassemble a fastening system of the ring / sleeve type by a simple rotation of the sleeve by compared to the ring. In addition, it is impossible to reassemble the system on a neck once in disassembly position.

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Description

La présente invention concerne un système de fixation pour fixer un organe de distribution, tel qu'une pompe ou une valve, sur un col d'un réservoir de produit fluide pour constituer un distributeur de produit fluide, le système comprenant une bague de fixation ayant des moyens de réception destinés à recevoir l'organe de distribution et des moyens d'accrochage destinés à venir en prise autour du col du réservoir. Ces moyens d'accrochage comprennent généralement des pattes axiales souples séparées par des fentes axiales. D'autre part, le système comprend un manchon de verrouillage engagé autour de la bague pour bloquer les pattes en prise autour du col. Les domaines d'application privilégiés de la présente invention sont ceux de la parfumerie, de la cosmétique ou encore de la pharmacie.The present invention relates to a fastening system for fixing a dispensing member, such as a pump or a valve, on a neck of a fluid reservoir to form a fluid dispenser, the system comprising a fastening ring having receiving means for receiving the dispensing member and hooking means for engaging around the neck of the reservoir. These attachment means generally comprise flexible axial tabs separated by axial slots. On the other hand, the system includes a locking sleeve engaged around the ring to lock the tabs engaged around the neck. The preferred fields of application of the present invention are those of perfumery, cosmetics or even pharmacy.

Dans l'art antérieur, on connaît déjà ce type de système de fixation utilisant une bague de fixation associée à un manchon de verrouillage, par exemple, tel que décrit dans les documents US 4 359 116 ou EP 0 704 251 . En général, la bague de fixation comprend des moyens de réception, comme par exemple un logement, permettant de recevoir l'organe de distribution, qui peut par exemple comprendre une collerette saillante destinée à être engagée par encliquetage dans le logement de la bague. Outre ces moyens de réception, la bague de fixation comprend également une jupe de fixation de forme sensiblement cylindrique formant les pattes souples qui définissent une paroi interne éventuellement pourvue d'un ou de plusieurs profil(s) d'accrochage destiné(s) à venir en prise avec le col du réservoir. Conventionnellement, le col du réservoir forme un renfort externe annulaire saillant sous lequel le ou les profil(s) d'accrochage viennent en prise en position finale de montage. Le manchon de verrouillage a pour fonction d'empêcher le désengagement des profils internes des pattes de la jupe d'en dessous du renfort externe saillant du col. En d'autres termes, le manchon de verrouillage maintient les profils d'accrochage de la bague prisonniers du col du réservoir. Pour permettre aux profils de la jupe de passer au-delà et en dessous du renfort annulaire saillant du col, il est prévu de réaliser la jupe de la bague avec des fentes axiales longitudinales de manière à diviser la jupe en plusieurs pattes séparées par des fentes. Il est nécessaire que la jupe de la bague puisse se déformer radialement vers l'extérieur lors du passage du renfort du col. Le manchon de verrouillage a pour fonction d'empêcher cette déformation radiale vers l'extérieur de la jupe de la bague, une fois que les profils d'accrochage sont en prises en dessous du renfort du col.In the prior art, this type of fastening system is already known using an attachment ring associated with a locking sleeve, for example, as described in the documents US 4,359,116 or EP 0 704 251 . In general, the fixing ring comprises receiving means, such as a housing, for receiving the dispensing member, which may for example comprise a projecting collar intended to be engaged by snapping into the housing of the ring. In addition to these receiving means, the fixing ring also comprises a fastening skirt of substantially cylindrical shape forming the flexible tabs which define an internal wall possibly provided with one or more attachment profile (s) intended (s) to come engaged with the neck of the tank. Conventionally, the neck of the tank forms a projecting annular external reinforcement under which the attachment profile (s) engage in the final assembly position. The locking sleeve serves to prevent the disengagement of the internal profiles of the legs of the skirt from below the external protruding protruding collar. In other words, the locking sleeve maintains the snap profiles of the ring captive of the neck of the tank. To allow the profiles of the skirt to pass beyond underneath the annular reinforcement protruding from the neck, it is intended to achieve the skirt of the ring with longitudinal axial slots so as to divide the skirt into several tabs separated by slots. It is necessary that the skirt of the ring may deform radially outwardly during the passage of the neck reinforcement. The function of the locking sleeve is to prevent this radial deformation towards the outside of the skirt of the ring, once the fastening profiles are engaged below the reinforcement of the neck.

En général, la position finale de montage, dans laquelle le manchon de verrouillage empêche la bague de se désengager du col, est une position définitive, en ce sens qu'il n'est plus possible de retirer le manchon de verrouillage de la bague pour permettre le retrait de la bague à partir du col. Par conséquent, pour retirer un ensemble de distribution utilisant un tel système de fixation, il faut détruire le manchon, la bague ou le col. En effet, la tenue du manchon de verrouillage est considérable de sorte que sa résistance à la traction ne peut être surmontée en tirant axialement dessus sans l'abîmer ou la détruire.In general, the final mounting position, in which the locking sleeve prevents the ring from disengaging from the neck, is a definitive position, in that it is no longer possible to remove the locking sleeve from the ring for allow removal of the ring from the neck. Therefore, to remove a dispensing assembly using such a fastening system, it is necessary to destroy the sleeve, the ring or the neck. Indeed, the holding of the locking sleeve is considerable so that its tensile strength can not be overcome by pulling axially above without damaging or destroying.

Le démontage du distributeur, c'est-à-dire le retrait de l'ensemble de distribution à partir du réservoir, peut cependant s'avérer utile dans certaines circonstances. Lorsque le réservoir est destiné à être à nouveau rempli une fois qu'il a été vidé, on utilise en général un système de fixation à visser. En effet, le système de fixation à bague et frette de blocage s'avère peu adapté, étant donné que la mise en place du manchon sur la bague est généralement définitive. Le démontage peut également s'avérer utile pour pouvoir recycler le distributeur en séparant ces différents matériaux constitutifs. Ceci est théoriquement possible avec le système de fixation à bague et manchon de verrouillage, mais nécessite la destruction de la bague, du manchon ou du col, ce qui est une opération aléatoire et donc difficilement industrialisable.Disassembling the dispenser, i.e. removing the dispensing assembly from the reservoir, may, however, be useful in some circumstances. When the reservoir is intended to be refilled once it has been emptied, a screw fastening system is generally used. Indeed, the ring fastening system and locking ring is not suitable, since the establishment of the sleeve on the ring is generally final. Disassembly can also be useful to be able to recycle the distributor by separating these different constituent materials. This is theoretically possible with the fastening ring system and locking sleeve, but requires the destruction of the ring, the sleeve or collar, which is a random operation and therefore difficult to industrialize.

La présente invention a pour but d'étendre la capacité d'utilisation du système de fixation à bague et manchon aux applications où il est nécessaire de retirer l'ensemble de distribution du réservoir. Un autre but de la présente invention est de permettre ce démontage sans rajouter de pièces supplémentaires au distributeur. Un autre but est de pouvoir retirer le système de fixation du col de manière industrielle au moyen d'une opération simple et garantie. Un démontage aisé par le consommateur dans un but de recyclage est également recherché. Une fabrication, une mise en oeuvre et un montage/démontage simples et peu coûteux restent toujours un objectif de la présente invention.It is an object of the present invention to extend the usability of the ring and sleeve fastening system to applications where it is necessary to remove the dispensing assembly from the reservoir. Another purpose of this The invention is to allow this disassembly without adding additional parts to the distributor. Another object is to be able to remove the neck fastening system industrially by means of a simple and guaranteed operation. Easy disassembly by the consumer for the purpose of recycling is also sought. Simple and inexpensive manufacture, implementation and assembly / disassembly are still an object of the present invention.

Pour atteindre ces buts, la présente invention propose que le manchon de verrouillage forme plusieurs secteurs de verrouillage destinés à venir en prise avec les pattes pour les bloquer autour du col et plusieurs secteurs de déverrouillage hors de contact de la bague, le manchon étant déplaçable autour de la bague entre une position de montage dans laquelle les secteurs de verrouillage sont en prise avec les pattes et les secteurs de déverrouillage sont situés au niveau des fentes, et une position de démontage dans laquelle les secteurs de verrouillage sont situés au niveau des fentes et les secteurs de déverrouillage sont situés au niveau des pattes pour leur permettre de se déformer pour se libérer de leur prise avec le col. Ainsi, le manchon de verrouillage est déplaçable en rotation pure sans composante axiale autour de la bague de fixation, qui elle, reste parfaitement statique par rapport au col. C'est le déplacement rotatif relatif entre le manchon et la bague qui va permettre de passer de la position de montage à la position de démontage, dans laquelle le système de fixation peut à nouveau être retiré du col.To achieve these objects, the present invention proposes that the locking sleeve forms a plurality of locking sectors intended to engage the tabs to lock them around the neck and several unlocking sectors out of contact with the ring, the sleeve being movable around of the ring between a mounting position in which the locking sectors are engaged with the tabs and the unlocking sectors are located at the slots, and a disassembly position in which the locking sectors are located at the slots and the unlocking sectors are located at the legs to allow them to deform to free themselves from their grip with the collar. Thus, the locking sleeve is movable in pure rotation without axial component around the fixing ring, which itself remains perfectly static with respect to the neck. It is the relative rotational movement between the sleeve and the ring which will allow to go from the mounting position to the disassembly position, in which the fastening system can again be removed from the neck.

Afin d'assurer que les secteurs de verrouillage sont positionnés angulairement au même niveau que les pattes axiales souples correspondantes, il est nécessaire d'orienter correctement le manchon par rapport à la bague. Ceci peut être effectué lors du montage du système de fixation en indexant la position relative des deux pièces. Cependant, cela complique l'opération de montage. Pour éviter cette opération d'indexation, la présente invention prévoit une disposition particulièrement astucieuse qui réside à réaliser de manière monobloc la bague et le manchon, ceux-ci étant reliés ensemble par des ponts de matière cassables. Ainsi, l'indexation relative des deux pièces est automatiquement réalisée de par leur moulage monobloc, et on n'a ainsi plus à se soucier de la position angulaire du manchon par rapport à la bague.In order to ensure that the locking sectors are positioned angularly at the same level as the corresponding flexible axial tabs, it is necessary to correctly orient the sleeve with respect to the ring. This can be done when mounting the fastening system by indexing the relative position of the two parts. However, this complicates the mounting operation. To avoid this indexing operation, the present invention provides a particularly clever arrangement that resides in one-piece construction of the ring and the sleeve, the latter being connected together by bridges of breakable material. Thus, indexation relative two parts is automatically performed by their one-piece molding, and we no longer have to worry about the angular position of the sleeve relative to the ring.

Selon une forme de réalisation pratique, la bague comprend une jupe crénelée formant ainsi les pattes et les fentes, un plateau destiné à venir en appui sur le col, avec un joint éventuellement interposé, et un logement de réception, avantageusement par encliquetage, pour l'organe de distribution. Dans ce cas, le manchon peut être initialement relié par des arêtes internes inférieures des secteurs de verrouillage à l'arête externe supérieure de la jupe de la bague de manière monobloc, axialement au-dessus de chaque patte.According to a practical embodiment, the ring comprises a crenellated skirt thus forming the tabs and the slots, a plate intended to bear on the neck, with a seal possibly interposed, and a receiving housing, advantageously by snapping, for the distribution organ. In this case, the sleeve can be initially connected by lower internal edges of the locking sectors to the upper outer edge of the skirt of the ring integrally, axially above each leg.

Dans certains cas, il est préférable, voire indispensable, de ne plus pouvoir remonter le système de fixation sur le col une fois démonté. Ceci permet notamment d'éviter les contrefaçons et les fraudes. Selon l'invention, il est prévu que les secteurs de verrouillage pénètrent au moins partiellement dans les fentes en position de démontage, empêchant ainsi de revenir en position de montage. Ainsi, les secteurs de verrouillage vont remplir une fonction supplémentaire de verrouillage en position de démontage, en ce sens que l'insertion des secteurs de verrouillage dans les fentes correspondantes empêche toute rotation libre ultérieure du manchon sur la bague. Les secteurs de verrouillage remplissent alors une fonction de loquet ou de verrou en étant reçus, sans retour possible, à l'intérieur des fentes.In some cases, it is preferable, even essential, not to be able to reassemble the fastening system on the neck once disassembled. This makes it possible to avoid counterfeiting and fraud. According to the invention, it is provided that the locking sectors penetrate at least partially into the slots in disassembly position, thus preventing the return to the mounting position. Thus, the locking sectors will fulfill an additional function of locking in disassembly position, in that the insertion of the locking sectors in the corresponding slots prevents any subsequent free rotation of the sleeve on the ring. The locking sectors then perform a function of latch or latch being received, without possible return, inside the slots.

Afin d'assurer la rotation du manchon sur la bague, il est indispensable que les forces de frottement en rotation entre la bague et le col soient supérieures aux forces de frottement en rotation entre le manchon et la bague, au moins lorsque les secteurs de verrouillage sont en prise avec les pattes. Avantageusement, le col forme des moyens de blocage en rotation pour empêcher une rotation libre de la bague sur le col. Ces moyens de blocage peuvent se présenter sous diverses formes, et plus particulièrement sous la forme de profils saillants ou en creux ménagés à n'importe quel endroit du col susceptible de venir en interférence avec la bague. Il n'est pas nécessaire que la bague soit parfaitement statique en rotation sur le col : il est seulement nécessaire que la rotation de la bague sur le col ne soit pas libre, mais au contraire limitée par une mise en butée.To ensure the rotation of the sleeve on the ring, it is essential that the rotational friction forces between the ring and the neck are greater than the rotational friction forces between the sleeve and the ring, at least when the locking sectors. are engaged with the paws. Advantageously, the neck forms rotational locking means to prevent free rotation of the ring on the neck. These locking means may be in various forms, and more particularly in the form of protruding or recessed profiles at any point of the neck likely to interfere with the ring. It is not necessary that the ring is perfectly static in rotation on the neck: it is only necessary that the rotation of the ring on the neck is not free, but on the contrary limited by an abutment.

Selon une autre caractéristique de l'invention, le manchon, et plus particulièrement les secteurs de verrouillage, ne viennent en contact de la bague qu'au niveau des pattes. De cette manière, les forces de frottement et de serrage entre le manchon et la bague sont concentrées au niveau des pattes.According to another characteristic of the invention, the sleeve, and more particularly the locking sectors, only come into contact with the ring at the level of the tabs. In this way, the friction and clamping forces between the sleeve and the ring are concentrated at the tabs.

Selon un autre aspect intéressant de l'invention, les secteurs de déverrouillage sont plus larges que les pattes. On facilite ainsi le positionnement des pattes au niveau des secteurs de déverrouillage.According to another interesting aspect of the invention, the unlocking sectors are wider than the legs. This facilitates the positioning of the tabs at the unlocking sectors.

Selon un mode de réalisation pratique, un espace de débattement est de préférence présent entre une patte et son secteur de déverrouillage en position de démontage. Avantageusement, les secteurs de verrouillage sont formés par des plots qui font saillie vers l'intérieur du manchon à partir d'une paroi interne sensiblement cylindrique. Avantageusement, les secteurs de déverrouillage sont formés par une partie du manchon reliant les secteurs de verrouillage entre eux, de sorte que le manchon est continu sur toute sa périphérie. Les secteurs de déverrouillage sont ainsi constitués par de la matière, et plus particulièrement une paroi, mais celle-ci n'est pas en contact de la bague de manière à créer l'espace de débattement. En variante, il est également possible de réaliser des secteurs de déverrouillage sous la forme d'une absence de matière, ce qui résulte en une échancrure ou fente entre les secteurs de verrouillage. Mais de préférence, le manchon présente une paroi externe cylindrique qui est interrompue au niveau des secteurs de verrouillage qui forment des évidements.According to a practical embodiment, a clearance space is preferably present between a tab and its unlocking sector in disassembly position. Advantageously, the locking sectors are formed by studs which protrude inwardly from the sleeve of a substantially cylindrical inner wall. Advantageously, the unlocking sectors are formed by a portion of the sleeve connecting the locking sectors to each other, so that the sleeve is continuous over its entire periphery. The unlocking sectors are thus constituted by material, and more particularly a wall, but it is not in contact with the ring so as to create the clearance space. Alternatively, it is also possible to make unlocking sectors in the form of a lack of material, resulting in a notch or slot between the locking sectors. But preferably, the sleeve has a cylindrical outer wall which is interrupted at the locking sectors which form recesses.

Selon un autre aspect de l'invention, le système de fixation peut en outre comprendre une frette d'habillage, de préférence métallique, engagée autour du manchon pour le masquer. Cette frette peut même remplir une fonction de blocage, en particulier lorsque le manchon n'est pas continu sur toute sa périphérie (secteurs de déverrouillage formés par des échancrures ou fentes).According to another aspect of the invention, the fastening system may further comprise a trim band, preferably metal, engaged around the sleeve to hide it. This hoop can even fulfill a locking function, in particular when the sleeve is not continuous over its entire periphery (unlocking sectors formed by indentations or slots).

Le principe de l'invention réside dans le fait de supprimer le verrouillage des pattes par un déplacement rotatif pur du manchon de verrouillage. Ce principe peut d'autant plus facilement être mis en oeuvre qu'il ne nécessite aucune indexation entre le manchon et la bague et qu'un verrouillage en position démontée est assuré sans compliquer la configuration du système.The principle of the invention lies in the fact of removing the locking of the tabs by a pure rotational movement of the locking sleeve. This principle can all the more easily be implemented that it does not require indexing between the sleeve and the ring and that locking in disassembled position is assured without complicating the configuration of the system.

L'invention sera maintenant plus amplement décrite en référence aux dessins joints donnant à titre d'exemple non limitatif un mode 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 example an embodiment of the invention.

Sur les dessins :

  • La figure 1 est une vue explosée d'un distributeur de produit fluide utilisant un système de fixation selon l'invention en position avant montage,
  • La figure 2 est une vue en perspective agrandie du système de fixation de l'invention avant montage,
  • La figure 3 est une vue similaire à celle de la figure 2 avec une partie du système de fixation découpée pour laisser apparaître l'intérieur,
  • La figure 4 est une vue en perspective du distributeur de la figure 1 avec le système de fixation prémonté sur le col de réservoir,
  • La figure 5 est une vue similaire à celle de la figure 4 avec le système de fixation en position finale de montage avec une partie découpée pour laisser apparaître l'intérieur,
  • La figure 6 est une vue agrandie découpée avec le poussoir retiré en position de démontage après rotation du manchon 2 autour de la bague 1, et La figure 7 est une vue en perspective du distributeur à l'état démonté.
On the drawings:
  • The figure 1 is an exploded view of a fluid dispenser using a fastening system according to the invention in position before assembly,
  • The figure 2 is an enlarged perspective view of the fastening system of the invention before assembly,
  • The figure 3 is a view similar to that of the figure 2 with a part of the fastening system cut out to reveal the interior,
  • The figure 4 is a perspective view of the distributor of the figure 1 with the pre-mounted fastening system on the tank neck,
  • The figure 5 is a view similar to that of the figure 4 with the fastening system in the final mounting position with a cut-out part to reveal the interior,
  • The figure 6 is an enlarged view cut with the pusher removed in disassembly position after rotation of the sleeve 2 around the ring 1, and La figure 7 is a perspective view of the dispenser in the disassembled state.

Le système de fixation de l'invention comprend une bague de fixation 1 associée à un manchon de verrouillage 2. Sur la figure 1, le système de fixation est associé à un organe de distribution 3, qui peut être une pompe ou une valve. Le système de fixation et l'organe de distribution constituent un ensemble de distribution, qui peut éventuellement complété par une frette d'habillage 5. Cet ensemble de distribution est destiné à être monté de manière fixe et étanche sur un col 4 d'un réservoir de produit fluide, constituant ainsi un distributeur de produit fluide, tel que l'on peut en rencontrer dans les domaines de la parfumerie, de la cosmétique ou encore de la pharmacie. Il s'agit d'un distributeur dont l'actionnement de l'organe de distribution s'effectue manuellement à l'aide d'un ou de plusieurs doigt(s).The fixing system of the invention comprises a fixing ring 1 associated with a locking sleeve 2. On the figure 1 , the fastening system is associated with a dispensing member 3, which may be a pump or a valve. The fastening system and the dispensing member constitute a dispensing assembly, which may optionally be completed by a trim band 5. This dispensing assembly is intended to be mounted in a fixed and tight manner on a neck 4 of a reservoir. of fluid, thus constituting a fluid dispenser, such as can be meet in the fields of perfumery, cosmetics or pharmacy. It is a dispenser whose actuation of the dispenser is done manually using one or more finger (s).

L'organe de distribution 3 comprend un corps 31 pourvu à son extrémité inférieure d'une entrée de produit fluide 32 qui peut optionnellement être pourvue d'un tube plongeur (non représenté). A son extrémité supérieure, le corps 31 forme une collerette (non représentée) qui fait saillie radialement vers l'extérieur et qui sert généralement à la fixation de l'organe de distribution 3 dans le système de fixation de l'invention, comme on le verra ci-après. L'organe de distribution 3 comprend également une tige d'actionnement (non représentée) sur laquelle est monté un poussoir 33, formant avantageusement un orifice de distribution 34. Le poussoir 33 est déplaçable axialement en va-et-vient à l'encontre d'un ressort de rappel (non représenté). A chaque actionnement, du produit fluide, sous forme dosée ou non, est distribué à travers l'orifice 34. Il s'agit là d'une conception tout à fait classique pour une pompe ou une valve dans les domaines d'application précités.The dispensing member 3 comprises a body 31 provided at its lower end with a fluid inlet 32 which may optionally be provided with a dip tube (not shown). At its upper end, the body 31 forms a collar (not shown) which protrudes radially outwards and which is generally used for fixing the dispensing member 3 in the fastening system of the invention, as it is will see below. The dispensing member 3 also comprises an actuating rod (not shown) on which is mounted a pusher 33, advantageously forming a dispensing orifice 34. The pusher 33 is axially displaceable back and forth against a return spring (not shown). At each actuation, the fluid product, in metered form or not, is dispensed through the orifice 34. This is a quite conventional design for a pump or a valve in the aforementioned fields of application.

Le col 4 du réservoir (non représenté) comprend un épaulement annulaire 41 qui peut être considéré comme faisant déjà partie intégrante du corps du réservoir. A partir de cet épaulement 41, le col forme une première section rétrécie 42 qui est surmontée d'un renfort annulaire 43 qui fait saillie vers l'extérieur. L'extrémité supérieure du col est formée par un bord annulaire 45 qui délimite l'ouverture 40 du réservoir. Selon l'invention, le col 4 est pourvu de moyens de blocage en rotation 44, qui sont ici formés au niveau du renfort annulaire 43. Toutefois, il est également possible de former ces moyens de blocage à un autre endroit du col 4, comme par exemple au niveau de la section 42, de l'épaulement 41 ou encore du bord annulaire 45. La fonction de ces moyens de blocage en rotation 44, comme on le verra ci-après, est de bloquer la bague de fixation 1 en rotation sur le col 4 afin qu'elle ne tourne pas librement. Les moyens de blocage en rotation 44 sur la figure 1 sont réalisés sous la forme d'encoches ou de creux présentant par exemple une arête saillante sur laquelle la bague de fixation vient en butée et l'empêche ainsi de tourner librement. Avantageusement, les arêtes saillantes permettent de bloquer la rotation dans les deux sens. Toutefois, un blocage uniquement dans un sens est également possible. A la place de ces encoches, on peut également réaliser des moyens de blocage sous d'autres formes, comme par exemple des cannelures sur le renfort saillant 43, le secteur 42, l'épaulement 41 ou encore le bord annulaire 45. On peut également former des moyens de blocage en rotation sous la forme d'un ou de plusieurs profil(s) saillant(s) disposé(s) sur le col. Les moyens de blocage se présentent de préférence sous la forme d'une configuration en relief ou en creux, mais on peut également envisager des moyens de blocage sous la forme de matériaux permettant d'augmenter les forces de frottement entre la bague de fixation 1 et le col 4.The neck 4 of the reservoir (not shown) comprises an annular shoulder 41 which may be considered as already integral part of the tank body. From this shoulder 41, the neck forms a first narrowed section 42 which is surmounted by an annular reinforcement 43 which protrudes outwardly. The upper end of the neck is formed by an annular edge 45 which defines the opening 40 of the reservoir. According to the invention, the neck 4 is provided with rotational locking means 44, which are here formed at the annular reinforcement 43. However, it is also possible to form these locking means at another location of the neck 4, as for example at the section 42, the shoulder 41 or the annular edge 45. The function of these rotation locking means 44, as will be seen below, is to lock the fixing ring 1 in rotation on the neck 4 so that it does not rotate freely. The rotational locking means 44 on the figure 1 are in the form of notches or recesses having for example a projecting edge on which the fixing ring abuts and prevents it from turning freely. Advantageously, the projecting ridges make it possible to block rotation in both directions. However, blocking only in one direction is also possible. Instead of these notches, it is also possible to achieve locking means in other forms, such as for example splines on the projecting reinforcement 43, the sector 42, the shoulder 41 or the annular edge 45. forming rotational locking means in the form of one or more protruding profile (s) arranged on the neck. The locking means are preferably in the form of a raised or recessed configuration, but it is also possible to envisage locking means in the form of materials making it possible to increase the frictional forces between the fixing ring 1 and the neck 4.

On se référera maintenant indifféremment aux figures 1, 2 et 3 pour décrire en détail le système de fixation de l'invention, et plus particulièrement la bague de fixation 1 et son manchon de verrouillage associé 2.We will now refer indifferently to figures 1 , 2 and 3 to describe in detail the fixing system of the invention, and more particularly the fixing ring 1 and its associated locking sleeve 2.

La bague de fixation 1 comprend de manière tout à fait conventionnelle des moyens de réception 11 qui sont conçus pour recevoir de manière fixe et étanche l'organe de distribution 3, par exemple par encliquetage de sa collerette saillante dans un logement spécialement adapté qui est formé par les moyens de réception 11. D'autres techniques de réception peuvent bien entendu être utilisées pour recevoir de manière fixe et étanche l'organe de distribution 3 dans la bague de fixation 1. En son centre, la bague de fixation forme une ouverture 13 qui est destinée au passage de la tige d'actionnement de l'organe de distribution 3. Sur sa périphérie externe, les moyens de réception forment un plateau annulaire 14 qui est destiné à venir en appui, avec un joint de col éventuellement interposé, sur le bord supérieur annulaire 45 du col 4. Le plateau annulaire 14 a donc principalement une fonction d'étanchéité entre la bague de fixation 1 et le col 4 du réservoir. Le plateau 14 se prolonge sur sa périphérie externe par une jupe cylindrique 15 qui s'étend vers le bas. La jupe 15 est crénelée de manière à définir plusieurs pattes axiales 16 séparées par des fentes axiales 18. Ceci est clairement visible sur la figure 2. La jupe 15 forme ici cinq pattes axiales souples 16 et cinq fentes axiales 18 qui sont réparties de manière régulière sur le pourtour de la jupe 15. Une fonction des fentes 18 est de conférer une certaine souplesse aux pattes axiales 16. De cette manière, elles sont légèrement déformables, particulièrement en direction radiale vers l'extérieur pour permettre le montage de la bague de fixation 1 sur le col 4, comme on le verra ci-après. Avantageusement, la paroi interne des pattes 16 est formée avec un ou plusieurs profil(s) d'accrochage 17 destiné(s) à venir se loger sous le renfort annulaire 43 au niveau de la section rétrécie 42. Ceci est visible sur la figure 4. Avantageusement, les fentes 18 sont plus larges que les pattes 16. Les fentes 18 sont ouvertes vers le bas et s'étendent vers le haut jusqu'à proximité du plateau 14. En variante non représentée, il est possible d'étendre la jupe 16 vers le haut au-delà du plateau 14 pour former une paroi de guidage. Il s'agit là d'une conception globale tout à fait conventionnelle pour une bague de fixation dans les domaines de la parfumerie, de la cosmétique ou encore de la pharmacie.The fixing ring 1 comprises, quite conventionally, receiving means 11 which are designed to receive the dispensing member 3 in a fixed and sealed manner, for example by snapping its protruding flange into a specially adapted housing which is formed by receiving means 11. Other reception techniques can of course be used to receive in a fixed and sealed manner the dispensing member 3 in the fixing ring 1. In its center, the fixing ring forms an opening 13 which is intended for the passage of the actuating rod of the dispensing member 3. On its outer periphery, the receiving means form an annular plate 14 which is intended to come into abutment, with a neck seal possibly interposed, on the annular upper edge 45 of the neck 4. The annular plate 14 therefore has mainly a sealing function between the fixing ring 1 and the neck 4 of the tank. The plate 14 is extended on its outer periphery by a cylindrical skirt 15 which extends downwards. The skirt 15 is crenellated so as to define a plurality of axial tabs 16 separated by axial slots 18. This is clearly visible on the figure 2 . The skirt 15 forms here five legs flexible axial 16 and five axial slots 18 which are evenly distributed around the perimeter of the skirt 15. A function of the slots 18 is to give some flexibility to the axial tabs 16. In this way, they are slightly deformable, particularly in the direction radial outward to allow mounting of the fixing ring 1 on the neck 4, as will be seen below. Advantageously, the inner wall of the lugs 16 is formed with one or more attachment profile (s) 17 intended (s) to be housed under the annular reinforcement 43 at the narrowed section 42. This is visible on the figure 4 . Advantageously, the slots 18 are wider than the tabs 16. The slots 18 are open downwards and extend upwards to the vicinity of the plate 14. As a variant not shown, it is possible to extend the skirt 16 upwards beyond the plate 14 to form a guide wall. This is a global design quite conventional for a fixing ring in the fields of perfumery, cosmetics or pharmacy.

Le manchon de verrouillage 2 présente une configuration générale sensiblement cylindrique. Le manchon définit une paroi interne 2i et une paroi externe 2e qui sont toutes deux sensiblement cylindriques : « leur cylindricité » n'étant interrompue qu'au niveau de plusieurs secteurs de verrouillage 26 qui font saillie vers l'intérieur par rapport à la paroi interne 2i. On peut également remarquer que la paroi externe 2e est également évidée au niveau des secteurs de verrouillage 26, mais il est également envisageable de réaliser la paroi externe 2e de manière parfaitement cylindrique, c'est-à-dire en comblant les évidements formés au niveau des secteurs de verrouillage 26. Ces secteurs de verrouillage 26 sont ici au nombre de cinq et sont répartis de manière régulière sur le pourtour du manchon 2, de manière correspondante aux pattes 16 de la jupe 15. Les secteurs de verrouillage 26 sont séparés par des secteurs de déverrouillage 28 qui forment une partie du manchon et des parois internes 2i et externes 2e. En d'autres termes, les secteurs de déverrouillage 28 font partie intégrante de la majeure partie cylindrique du manchon 2. On peut ainsi considérer que le manchon de verrouillage 2 est une pièce parfaitement cylindrique, hormis au niveau des secteurs de verrouillage 26, qui sont formés par des zones décalées radialement vers l'intérieur. L'épaisseur de paroi au niveau des secteurs de verrouillage 26 peut être identique à celle des secteurs de déverrouillage 28. En variante, lorsque la paroi externe 2e est parfaitement cylindrique, l'épaisseur de paroi des secteurs de verrouillage est supérieure à celle des secteurs de déverrouillage 28. On peut remarquer que le manchon 2 est continu sur toute sa périphérie au niveau des secteurs de verrouillage 26 et de déverrouillage 28. En variante, il est également possible de former les secteurs de déverrouillage 28 sous la forme de fenêtres ou d'échancrures à la manière des fentes 18. Il est possible d'échancrer partiellement ou entièrement les secteurs de déverrouillage 28. Le but des secteurs de verrouillage 26 est de définir un diamètre interne qui est inférieur au diamètre au niveau des secteurs de déverrouillage 28. Ainsi, la paroi interne des secteurs de verrouillage 26 peut venir en contact serrant autour de la bague de fixation 1 et plus particulièrement en contact de la jupe 15, alors que les secteurs de déverrouillage 28 vont rester hors de contact de la bague. Les secteurs de verrouillage 26 peuvent s'étendre sur toute la hauteur du manchon 2, ou seulement sur une partie inférieure, comme cela est le cas sur les figures. Il est cependant préférable que les secteurs 26 ne s'étendent que sur une partie inférieure du manchon pour réaliser une fonction supplémentaire de blocage en position démontée, comme on le verra ci-après.The locking sleeve 2 has a generally cylindrical general configuration. The sleeve defines an inner wall 2i and an outer wall 2e which are both substantially cylindrical: "their cylindricity" being interrupted only at the level of several locking sectors 26 which protrude inwards with respect to the inner wall 2i. It may also be noted that the external wall 2e is also hollowed out at the level of the locking sectors 26, but it is also conceivable to make the external wall 2e perfectly cylindrical, that is to say by filling the recesses formed at the locking sectors 26. These locking sectors 26 are here five in number and are evenly distributed around the periphery of the sleeve 2, corresponding to the lugs 16 of the skirt 15. The locking sectors 26 are separated by unlocking sectors 28 which form part of the sleeve and internal walls 2i and external 2e. In other words, the unlocking sectors 28 form an integral part of the greater cylindrical part of the sleeve 2. It can thus be considered that the locking sleeve 2 is a perfect part. cylindrical, except at the level of the locking sectors 26, which are formed by radially inwardly offset zones. The wall thickness at the locking sectors 26 may be identical to that of the unlocking sectors 28. As a variant, when the external wall 2e is perfectly cylindrical, the wall thickness of the locking sectors is greater than that of the sectors. Unlocking 28. It can be noted that the sleeve 2 is continuous over its entire periphery at the locking sectors 26 and unlocking 28. In a variant, it is also possible to form the unlocking sectors 28 in the form of windows or windows. It is possible to indent or partially indent the unlocking sectors 28. The purpose of the locking sectors 26 is to define an internal diameter which is smaller than the diameter at the level of the unlocking sectors 28. Thus, the inner wall of the locking sectors 26 can come into tight contact around the fixing ring 1 and more particularly surely in contact with the skirt 15, while unlocking 28 sectors will remain out of contact with the ring. The locking sectors 26 may extend over the entire height of the sleeve 2, or only on a lower part, as is the case in the figures. It is however preferable that the sectors 26 extend only on a lower part of the sleeve to perform an additional blocking function in disassembled position, as will be seen below.

Le manchon de verrouillage 2 est destiné à être engagé autour de la bague de fixation 1 de manière à bloquer les pattes 16 de la bague 1 autour du col 4. Il s'agit là d'une fonction tout à fait conventionnelle pour un manchon de verrouillage classique. La particularité de la présente invention réside dans le fait que le manchon de verrouillage 2 vient en contact avec la bague 1 au niveau des secteurs de verrouillage 26, alors que les secteurs de déverrouillage 28 restent hors de contact. Nous avons déjà vu précédemment que la bague de fixation 1 est destinée à être montée sur le col 4 de manière à ce que les pattes 16 entourent le col 4, avec les profils d'accrochage 17 engagés sous le renfort annulaire 43 au niveau du secteur rétréci 42. Ceci est visible sur la figure 4. Toutefois, étant donné que les pattes 16 sont souples, elles ne suffisent pas à elles seules à maintenir de manière stable et étanche la bague de fixation sur le col 4. Il est donc nécessaire de bloquer les pattes 16 en position autour du col 4, et ceci est réalisé à l'aide du manchon de verrouillage 2, dont les secteurs de verrouillage 26 vont s'engager à frottement et serrage autour des pattes 16 comme on peut le voir sur la figure 5. Le système de fixation est alors dans sa position finale de montage. Il est bien entendu nécessaire que les secteurs de verrouillage soient positionnés au niveau des pattes 16 (un secteur de verrouillage par patte). Lorsque le manchon de verrouillage est suffisamment rigide de lui-même, la fonction de verrouillage est entièrement remplie par les secteurs de verrouillage. En revanche, lorsque le manchon de verrouillage n'est pas suffisamment rigide, comme cela peut être le cas lorsque les secteurs de déverrouillage sont constitués par des échancrures ou fenêtres, il est alors nécessaire d'utiliser une frette d'habillage 5 qui est engagée à frottement autour du manchon de verrouillage 2, comme on peut le voir sur la figure 5. Lorsque le manchon est de lui-même suffisamment rigide, la frette d'habillage 5 ne remplit alors qu'une fonction esthétique en maquant la bague de fixation 1 et le manchon de verrouillage 2.The locking sleeve 2 is intended to be engaged around the fixing ring 1 so as to block the lugs 16 of the ring 1 around the neck 4. This is a quite conventional function for a sleeve of classic lock. The particularity of the present invention lies in the fact that the locking sleeve 2 comes into contact with the ring 1 at the locking sectors 26, while the unlocking sectors 28 remain out of contact. We have already seen previously that the fixing ring 1 is intended to be mounted on the neck 4 so that the tabs 16 surround the neck 4, with the attachment profiles 17 engaged under the annular reinforcement 43 at the sector narrowed 42. This is visible on the figure 4 . However, since the tabs 16 are flexible, they alone are not sufficient to maintain in a stable and sealed manner the fixing ring on the neck 4. It is therefore necessary to block the tabs 16 in position around the neck 4, and this is achieved with the aid of the locking sleeve 2, whose locking sectors 26 will engage friction and clamping around the tabs 16 as can be seen on the figure 5 . The fastening system is then in its final mounting position. It is of course necessary that the locking sectors are positioned at the tabs 16 (a tab locking sector). When the locking sleeve is sufficiently rigid on its own, the locking function is completely filled by the locking sectors. On the other hand, when the locking sleeve is not rigid enough, as may be the case when the unlocking sectors are constituted by indentations or windows, it is then necessary to use a covering band 5 which is engaged. frictionally around the locking sleeve 2, as can be seen on the figure 5 . When the sleeve is of itself sufficiently rigid, the trim band 5 then fulfills only an aesthetic function by masking the fixing ring 1 and the locking sleeve 2.

Dans la position de montage représentée sur la figure 5, le distributeur peut être actionné par l'utilisateur en appuyant axialement sur le poussoir 33 de manière à le déplacer axialement en va-et-vient. L'engagement des pattes 16 autour du col 4 bloquées en position par le manchon 2 assure une fixation parfaite de l'organe de distribution 3 sur le col de réservoir. L'étanchéité est assurée par l'écrasement du plateau 14 (ou du joint de col) sur le bord supérieur 45 du col.In the mounting position shown on the figure 5 , the dispenser can be actuated by the user by pressing axially on the pusher 33 so as to move it axially back and forth. The engagement of the lugs 16 around the neck 4 locked in position by the sleeve 2 ensures a perfect attachment of the dispensing member 3 on the tank neck. Sealing is ensured by the crushing of the plate 14 (or the neck seal) on the upper edge 45 of the neck.

Selon l'invention, il est possible de déplacer en rotation le manchon de verrouillage 2 par rapport à la bague de fixation 1. Ce déplacement en rotation peut être effectué en appliquant le couple directement sur la frette d'habillage 5 qui est fixement engagé autour du manchon 2. On peut même prévoir des profils d'accrochage particuliers au niveau de la frette 5 ou du manchon 2 pour augmenter la tenue en rotation de la frette 5 sur le manchon 2. On peut ainsi tourner le manchon 2 autour de la bague 1 jusqu'à une position de démontage qui est représentée sur la figure 6. On peut voir que les secteurs de verrouillage 26 sont maintenant positionnés au niveau des fentes 18, alors que les pattes 26 sont situées au niveau des secteurs de déverrouillage 28. Etant donné que les secteurs de déverrouillage 28 présentent un diamètre interne supérieur au diamètre externe de la jupe 15 et des pattes 16, il existe un espace intercalaire de débattement E qui permet aux pattes 16 de se déformer librement radialement vers l'extérieur de sorte qu'elles peuvent se désengager d'en dessous du renfort annulaire 43. Dans le cas où les secteurs de déverrouillage sont réalisés sous la forme d'une échancrure ou d'une fenêtre, l'espace de débattement est encore plus grand puisqu'il n'est limité que par la paroi interne de la frette d'habillage 5 engagée autour du manchon 2. D'autre part, on peut remarquer que les secteurs de verrouillage 26 sont partiellement engagés à l'intérieur des fentes 18. Ceci est possible du fait que la hauteur des secteurs de verrouillage 26 est inférieure à la hauteur des fentes 18. De cette manière, les secteurs de verrouillage 26 sont prisonniers des fentes 18, empêchant ainsi la rotation libre du manchon 2 autour de la bague 1 en position de démontage. L'engagement des secteurs 26 dans les fentes 18 empêchent également un retrait par traction axiale du manchon 2. Le blocage des secteurs 26 à l'intérieur des fentes 18 garantit ainsi qu'il n'est plus possible de revenir vers la position de montage à partir de la position de démontage. Cette fonction particulière des secteurs de verrouillage est notamment utile lorsqu'il est souhaitable de ne plus pouvoir remonter l'ensemble de distribution sur le réservoir.According to the invention, it is possible to rotate the locking sleeve 2 with respect to the fixing ring 1. This rotational movement can be effected by applying the torque directly to the trim band 5 which is fixedly engaged around of the sleeve 2. One can even provide particular fastening profiles at the hoop 5 or the sleeve 2 to increase the rotational strength of the hoop 5 on the sleeve 2. It is thus possible to turn the sleeve 2 around the ring 1 to a disassembly position which is shown in FIG. figure 6 . It can be seen that the locking sectors 26 are now positioned at the slots 18, while the tabs 26 are located at the unlocking sectors 28. Since the unlocking sectors 28 have an internal diameter greater than the external diameter of the skirt 15 and lugs 16, there is an intermediate gap E which allows the lugs 16 to deform freely radially outwardly so that they can disengage from below the annular reinforcement 43. In the case where the unlocking sectors are made in the form of a notch or a window, the clearance space is even greater since it is limited only by the inner wall of the trim ring 5 engaged around of the sleeve 2. On the other hand, it can be seen that the locking sectors 26 are partially engaged inside the slots 18. This is possible because the height of the sectors of v The lock 26 is less than the height of the slots 18. In this way, the locking sectors 26 are trapped in the slots 18, thus preventing free rotation of the sleeve 2 around the ring 1 in the disassembly position. The engagement of the sectors 26 in the slots 18 also prevents an axial pulling withdrawal of the sleeve 2. The blocking of the sectors 26 inside the slots 18 thus ensures that it is no longer possible to return to the mounting position from the dismantling position. This particular function locking sectors is particularly useful when it is desirable to not be able to reassemble the distribution assembly on the tank.

A partir de la position de démontage représentée sur la figure 6, il est alors possible de retirer l'ensemble de distribution, comme représenté sur la figure 7.From the disassembly position shown on the figure 6 , it is then possible to remove the distribution assembly, as shown on the figure 7 .

Afin de permettre la rotation du manchon 2 sur la bague 1, il est nécessaire d'empêcher la rotation de la bague 1 sur le col 4. Pour cela, il faut que les forces de frottement entre la bague et le col soient supérieures aux forces de frottement entre la bague 1 et le manchon 2. Ceci peut s'opérer en ajustant de manière appropriée les différentes forces de frottement, mais de préférence on se sert des moyens de blocage en rotation 44 prévus sur le col 4.To allow rotation of the sleeve 2 on the ring 1, it is necessary to prevent the rotation of the ring 1 on the neck 4. For this, it is necessary that the frictional forces between the ring and the neck are greater than the forces friction between the ring 1 and the sleeve 2. This can take place in suitably adjusting the different frictional forces, but preferably rotational locking means 44 provided on the neck 4 are used.

La bague de fixation 1 et le manchon de verrouillage 2 peuvent être réalisés séparément, par exemple par injection moulage de matière plastique. Il est alors nécessaire lors du montage du système de fixation de positionner angulairement le manchon 2 par rapport à la bague 1 afin que les secteurs de verrouillage 26 soient positionnés correctement par rapport aux pattes 16. Ceci nécessite une indexation de la bague et du manchon et un outillage approprié pour les positionner angulairement l'un par rapport à l'autre. Pour éviter cette opération d'indexation et de positionnement, la présente invention prévoit de mouler de manière monobloc la bague 1 et le manchon 2. Les deux pièces sont alors reliées ensemble par des ponts de matière cassables 12 qui sont destinés à être cassés lors de l'engagement du manchon 2 autour de la bague 1. Ces ponts de matière cassables 12 sont par exemple situés au niveau de l'arête intérieure inférieure 27 des secteurs de verrouillage 26 qui est en contact avec l'arête externe supérieure 19 de la jupe 15, qui forme également l'arête périphérique du plateau 14. Ceci est clairement visible sur la figure 3. De cette manière, le manchon 2 est relié à la bague 1 par cinq ponts de matière cassables situés au niveau de chacun des secteurs de verrouillage 26. Le problème de l'indexation mutuelle des deux pièces ne se pose plus, étant donné que l'orientation mutuelle des deux pièces découle directement de leur moulage monobloc. Ainsi, le manchon 2 n'est en contact de la bague qu'au niveau des secteurs de verrouillage 26 à la sortie du moule, mais également en position de montage finale dans laquelle les secteurs de verrouillage 26 sont en contact des pattes 16. Comme on peut le voir sur la figure 3, l'espace de débattement E est déjà présent entre les secteurs de déverrouillage 28 et la jupe 15 à la sortie du moule.The fixing ring 1 and the locking sleeve 2 can be made separately, for example by injection molding plastic material. It is then necessary when mounting the fastening system to angularly position the sleeve 2 relative to the ring 1 so that the locking sectors 26 are positioned correctly relative to the tabs 16. This requires an indexing of the ring and the sleeve and appropriate tools to position them angularly relative to each other. To avoid this indexing and positioning operation, the present invention provides for integrally molding the ring 1 and the sleeve 2. The two parts are then connected together by bridges of breakable material 12 which are intended to be broken during the engagement of the sleeve 2 around the ring 1. These bridges of breakable material 12 are for example located at the lower inner edge 27 of the locking sectors 26 which is in contact with the upper outer edge 19 of the skirt 15, which also forms the peripheral edge of the plate 14. This is clearly visible on the figure 3 . In this way, the sleeve 2 is connected to the ring 1 by five bridges of breakable material located at each of the locking sectors 26. The problem of mutual indexing of the two parts no longer arises, since the mutual orientation of the two parts stems directly from their one-piece molding. Thus, the sleeve 2 is in contact with the ring only at the level of the locking sectors 26 at the exit of the mold, but also in the final mounting position in which the locking sectors 26 are in contact with the tabs. we can see it on the figure 3 the clearance space E is already present between the unlocking sectors 28 and the skirt 15 at the outlet of the mold.

Grâce à la présente invention, il est possible de démonter un système de fixation de type bague/manchon par une simple rotation du manchon par rapport à la bague. De plus, il est impossible de remonter le système sur un col une fois en position de démontage.Thanks to the present invention, it is possible to disassemble a fastening system of the ring / sleeve type by a simple rotation of the sleeve by compared to the ring. In addition, it is impossible to reassemble the system on a neck once in disassembly position.

Claims (15)

  1. A fastener system (1, 2) for releasably fastening a dispenser member (3), such as a pump or a valve, on a reservoir neck (4), the system comprising:
    a fastener ring (1) including both reception means (11) for receiving the dispenser member (3), and fastener means that are suitable for coming into engagement with the reservoir neck, the fastener means including flexible axial tabs (16) that are suitable for fastening around the reservoir neck (4), the tabs (16) being separated by axial slots (18); and
    a locking sleeve (2) that is engaged around the fastener ring (1) so as to lock the tabs in engagement around the neck (4);
    said locking sleeve (2) forms a plurality of locking sectors (26) for comin g into engagement with the tabs (16) so as to lock them around the neck (4), and a plurality of non-locking sectors (28) not in contact with the ring (1),
    characterized in that the sleeve (2) is movable about the ring (1) between an assembled position in which the locking sectors (26) are in engagement with the tabs (16) and the non-locking sectors (28) are situated at the slots (18), and a disassembly position in which the locking sectors (26) are situated at the slots (18) and the non-locking sectors (28) are situated at the tabs (16) so as to enable the tabs to deform in order to disengage from the neck (4).
  2. A fastener system according to claim 1, wherein, in the disassembly position, the locking sectors (26) penetrate, at least in part, into the slots (18), thereby preventing any return to the assembled position.
  3. A fastener system according to claim 1 or claim 2, wherein the friction forces in turning between the ring (1) and the neck (4) are greater than the friction forces in turning between the sleeve (2) and the ring (1), at least when the locking sectors (26) are in engagement with the tabs (16).
  4. A fastener system according to claim 3, wherein the neck (4) forms turn-prevention means (44) so as to prevent the ring (1) from turning freely on the neck (4).
  5. A fastener system according to any preceding claim, wherein the sleeve (2) comes into contact with the ring (1) only at the tabs (16).
  6. A fastener system according to any preceding claim, wherein the non-locking sectors (28) are wider than the tabs (16).
  7. A fastener system according to any preceding claim, wherein the ring (1) and the sleeve (2) are made integrally as a single part, being connected together via breakable bridges of material (12).
  8. A fastener system according to any preceding claim, wherein the locking sectors (26) are connected to the ring (1) axially above the tabs (16).
  9. A fastener system according to any preceding claim, wherein, in the disassembly position, clearance (E) preferably exists between a tab (16) and its non-locking sector (28).
  10. A fastener system according to any preceding claim, wherein the locking sectors (26) are formed by lugs that project inwards from the sleeve from a substantially cylindrical inside wall (2i).
  11. A fastener system according to any preceding claim, wherein the non-locking sectors (28) are formed by a portion of the sleeve (2) that interconnects the locking sectors (26), such that the sleeve is continuous over its entire periphery.
  12. A fastener system according to any preceding claim, wherein the sleeve (2) presents a cylindrical outside wall (2e) that is interrupted at the locking sectors (26) that form recesses.
  13. A fastener system according to any preceding claim, further including a covering hoop (5) that is preferably made of metal, and that is engaged around the sleeve (2) so as to mask it.
  14. A fastener system according to any preceding claim, wherein the ring (1) comprises: a notched skirt (15) thereby forming tabs (16) and slots (18); a plate (14) for coming to bear against the neck (4), with a gasket possibly interposed therebetween; and a reception housing (11) for receiving the dispenser member (3), advantageously by snap-fastening.
  15. A fastener system according to claim 14, wherein the sleeve (2) is initially connected via bottom internal sharp edges (27) of the locking sectors (26) to the top external sharp edge (19) of the skirt (15) of the ring (1) as a single unit, axially above each tab (16).
EP10752086.8A 2009-07-27 2010-07-23 Removable attachment system Active EP2459317B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0955249A FR2948344B1 (en) 2009-07-27 2009-07-27 DETACHABLE FASTENING SYSTEM.
PCT/FR2010/051560 WO2011015760A1 (en) 2009-07-27 2010-07-23 Removable attachment system

Publications (2)

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EP2459317A1 EP2459317A1 (en) 2012-06-06
EP2459317B1 true EP2459317B1 (en) 2013-05-29

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US (1) US8757409B2 (en)
EP (1) EP2459317B1 (en)
CN (1) CN102448618A (en)
BR (1) BRPI1014391A2 (en)
ES (1) ES2423487T3 (en)
FR (1) FR2948344B1 (en)
WO (1) WO2011015760A1 (en)

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Also Published As

Publication number Publication date
CN102448618A (en) 2012-05-09
EP2459317A1 (en) 2012-06-06
US20120068030A1 (en) 2012-03-22
US8757409B2 (en) 2014-06-24
ES2423487T3 (en) 2013-09-20
FR2948344B1 (en) 2011-09-02
FR2948344A1 (en) 2011-01-28
WO2011015760A1 (en) 2011-02-10
BRPI1014391A2 (en) 2016-04-05

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