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EP2148711A2 - Protection hood for a fluid product dispensing head - Google Patents

Protection hood for a fluid product dispensing head

Info

Publication number
EP2148711A2
EP2148711A2 EP08805809A EP08805809A EP2148711A2 EP 2148711 A2 EP2148711 A2 EP 2148711A2 EP 08805809 A EP08805809 A EP 08805809A EP 08805809 A EP08805809 A EP 08805809A EP 2148711 A2 EP2148711 A2 EP 2148711A2
Authority
EP
European Patent Office
Prior art keywords
cover
dispensing head
head
dispensing
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08805809A
Other languages
German (de)
French (fr)
Inventor
Ludovic Petit
Xavier Pottier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar France SAS
Original Assignee
Valois 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 Valois SAS filed Critical Valois SAS
Publication of EP2148711A2 publication Critical patent/EP2148711A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0021—Mouthpieces therefor
    • A61M15/0025—Mouthpieces therefor with caps
    • 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
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters

Definitions

  • the present invention relates to a protective cover for a dispensing head of a fluid dispenser, in particular of the nasal spray type, as well as such a dispensing head and a fluid dispenser comprising such a protective cap.
  • This type of removable cover when it is placed in the closed position, sealingly closes the dispensing orifice with the aid of a shutter element fixed to the bottom of the cover. It may be a deformable pad or elastomeric stopper, of material different from that of the cover and fixed on the bottom wall of the cover. The closure by the plug or stopper is directly at or inside the orifice, which ensures a good seal. But after several successive uses of the dispenser, there is a risk of irreversible deformation of this type of buffer or elastomeric plug, resulting in unreliable sealing. In addition, the dimensions of the shutter element must be adapted precisely to each type of dispensing orifice.
  • the hood itself must be precisely adapted to the dimensions of the dispensing head, and its manufacture therefore requires precise dimensional control to allow a perfect sealing cooperation between the closure element and the orifice.
  • product may evaporate, with the risk of incomplete dose distribution at the next actuation.
  • Product can also dry inside the dispensing head which can plug the orifice and make dispensing the product difficult or impossible.
  • the introduction of the hood on the head can be difficult, if not impossible, if the dimensions are not precisely adapted.
  • the documents EP-0 131 501, WO 2007/009872 and EP-0 775 530 disclose other devices of the state of the art, comprising protective caps simply removably nested on the dispensing head at their level. lower edge.
  • the present invention aims to provide a protective cover which does not have the aforementioned drawbacks.
  • the present invention aims to provide a protective cover which ensures a better seal, with an improved service life of the dispensing device.
  • the present invention also aims to provide a protective cover that is simple and inexpensive to manufacture and assemble.
  • the present invention also aims to provide a protective cover that easily adapts to the dispensing heads of existing dispensers, and which does not require any modification of the dispensing head, offering better dimensional compensation.
  • the present invention therefore relates to a protective cover, intended to cover in a closed position a dispensing head of a fluid dispenser, said head comprising an end wall incorporating a dispensing orifice and a side wall, said cover comprising inside at least one sealing profile which, in the closed position, cooperates sealingly with the side wall of the head, close to said dispensing orifice.
  • said at least one sealing profile is disposed projecting on a lateral inner wall and / or bottom of the cover.
  • said at least one sealing profile in the closed position, is deformed and / or compressed in a sealed manner against the dispensing head.
  • said at least one sealing profile comprises at least one lip and / or a bead and / or a tongue and / or a flange and / or a ring.
  • a side wall of the cover has an at least partially conical shape.
  • it is made of a substantially rigid plastic material.
  • it comprises fixing means for holding it firmly on the dispensing head.
  • the present invention also relates to a dispensing head of a fluid dispenser, characterized in that it comprises a cap as described above.
  • the dispensing head comprises a nasal pusher having an axial central distribution orifice made in the end wall of said dispensing head, said cap being made in the form of a hollow sleeve attached around said nasal pusher, said bonnet having an annular sealing profile projecting from its side inner wall, and which cooperates sealingly, with the side wall of the dispensing head in the closed position.
  • the dispensing head comprises a nasal pusher having an axial central distribution orifice made in the end wall of said dispensing head, said cap being made in the form of a hollow sleeve attached around said nasal pusher, said bonnet having an annular sealing profile projecting from its bottom wall, and which cooperates sealingly, with the side wall of the dispensing head in the closed position.
  • the present invention also relates to a fluid dispenser, comprising a product reservoir and a dispensing member such as a pump or a valve, characterized in that it comprises a dispensing head as described above.
  • FIG. 1 is a schematic longitudinal sectional view of a protective cover according to a first embodiment of the invention, in the closed position on a nasal dispensing head,
  • FIG. 2 is an enlarged partial view of the cover of FIG. 1,
  • FIG. 3 is a diagrammatic view in longitudinal section of a protective cover according to a second embodiment of the invention, in the closed position on a nasal dispensing head,
  • FIG. 4 is an enlarged partial view of the cover of FIG. 3.
  • the present invention covers a protective cover and a dispensing head and a fluid dispenser comprising such a protective cover.
  • the protective cover according to the invention applies to any type of distributor, the latter will not be described in detail below.
  • Figures 1 to 4 show schematically a protective cover 5 according to the invention, covering a dispensing head 4, preferably having the shape of a nasal spray pusher adapted to spray a spray into a nostril.
  • the cover 5 of the invention is not limited to the protection of this type of pusher.
  • the hood of the invention is in fact applied to any type of dispensing head comprising a product dispensing orifice capable of evaporating and / or drying and / or plugging the dispensing orifice.
  • the pusher 4 comprises in its axial end wall 40 an axial distribution port 401.
  • a bearing surface 44 for actuating the distributor can be provided, as well as means for connection 7 of the head 4 on a dispensing member, such as a pump or a valve (not shown).
  • a dispensing member such as a pump or a valve (not shown).
  • the head comprises in the expulsion channel leading to the orifice 401 an internal nozzle or insert 8 to limit the dead volume and create a spray through the orifice 401.
  • the dispensing head thus has an end wall 40, which incorporates the dispensing orifice 401, and a side wall 42.
  • This wall lateral 42 may itself comprise an edge side wall 420 located near the end wall 40 and a base side wall 421 located at the base of the pusher, close to the bearing surface 6.
  • a removable protective cover 5 is shown in its closed position in the figures, in the form of a hollow sleeve.
  • the cover comprises a lateral inner wall 52 and an axial bottom wall 50.
  • the cover according to the invention may comprise a lateral wall 52 of at least partially conical shape, and therefore particularly well adaptable to different types of pushers.
  • the cover 5 is made in the form of an elongated hollow sleeve, it can of course have any other suitable shape.
  • the cover may also comprise, as represented in FIGS. 1 and 3, fastening means 521 on its lateral wall 52, to hold it securely in the closed position on the dispensing head 4.
  • the fastening means of the cover on the head 4 may have any suitable form.
  • the cover can be fixed by snapping or screwed on a thread provided on the pusher.
  • the cover can be attached to the head 4 or to another element of the dispenser, such as for example a fixing ring or the product container (not shown).
  • the fixing means 521 according to the two embodiments described can cooperate with the pusher 4 at its base side wall 421, as can be seen in FIGS. 1 and 3.
  • the hood according to the invention comprises at least one sealing profile 500, 520 which is arranged projecting on one of its walls. internal, near said dispensing orifice.
  • the profile is advantageously made integrally with the cover, for example during the molding thereof, which allows all possible forms for said at least one sealing profile.
  • the hood according to the invention may be formed of a single piece, preferably a substantially rigid plastic material, which allows both to cooperate with the head tightly, and to be handled easily, reliably and safely by the user.
  • the cover comprises inside at least one sealing profile 520 disposed projecting on a lateral internal wall 52.
  • Said at least one sealing profile 520 is positioned so that in the closed position, it cooperates sealingly with the head, at its side edge wall 420, not far from the dispensing orifice 401.
  • the sealing profile is in the form of a double annular sealing bead 520 projecting from the lateral inner wall 52 of the cover 5.
  • the sealing profile could comprise a single annular bead instead of two.
  • the cover may comprise several other sealing beads to ensure optimum sealing of the device. These sealing beads 520, in the closed position, are deformed and / or sealed against the edge side wall 420 of the dispensing head, located towards the upper end of the pusher, close to the orifice.
  • the sealing profile represented by a double annular bead in Figures 1 and 2, could of course be replaced by or further comprise at least one lip, a tongue, a flange, a ring, or any other form projecting from an inner wall of the hood, and capable in the closed position of sealingly cooperate with the edge side wall 420 of the pusher 4.
  • the dispensing orifice 401 of the nasal pusher 4 is formed at the bottom of a kind of bowl 402 provided in the end wall of the head 4.
  • This embodiment corresponds to a head typical nasal distribution.
  • the cover engages around the nasal pusher until its bottom wall 50 bears on the end wall 40 of the head 4, insofar as the respective dimensions of the cover 5 and of the head 4 allow it, as is the case in Figures 1 and 2.
  • the bottom wall 50 may also not come into contact of the end wall 40 of the head, as long as the sealing profile 520 sealingly engages with the edge side wall 420 of the head in the closed position.
  • the cover of the invention makes it possible to easily compare the dimensional tolerances, creating a greater or lesser volume of air as a function of these. Sealing being performed on the lateral side of the head, there is no longer any obligation to provide a hood very precisely adapted to the head, and the manufacture of the hood becomes simpler and less expensive.
  • FIGS. 3 and 4 show a second embodiment of the invention wherein the hood sealing profile is different.
  • the other elements, corresponding to the same numerical references as in FIGS. 1 and 2, will therefore not be explained again.
  • the cover 5 comprises a sealing profile in the form of an annular sealing flange or sleeve 500 projecting from its bottom wall 50, and which cooperates in a leaktight manner with the wall lateral edge 420 of the head 4 in the closed position.
  • the annular flange 500 is integral with the cover and may have a decreasing thickness from the bottom wall 50 of the cover.
  • Figure 4 which shows an enlarged detail of Figure 3, the flange 500 is thicker at its base 510 than at its free end 520.
  • the shape of this annular flange allows both a good strength and good resistance at its base 510, and good flexibility and good sealing capacity at its free end 520.
  • the free end 520 of the annular sealing flange 500 fits around the axial end of the pusher.
  • the annular flange cooperates sealingly with the wall 4.
  • the bottom wall of the cover 50 does not bear against the end wall 40 of the head 4. Only the flange 500 bears against the edge side wall 420 of the head.
  • Fixing means 521 of the hood to the head similar to those of the first embodiment may also be provided.
  • the present invention thus provides a sealed protective cover of the dispensing orifice of a fluid dispenser, which is easy to set up and remove, which ensures sealing of the orifice in the closed position even after many uses, and simultaneously prevents any evaporation or drying of the product at said dispensing orifice in this closed position.
  • the shape of the cover, as well as the shape, the position and the number of the (s) profile (s) of sealing can be any.
  • the sealing profile (s) are not necessarily made integrally with the cover, but may for example be molded (s) or the like.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention relates to a protection hood for covering, in a closing position, the dispensing head (4) of a fluid product dispenser, said head comprising an end wall (40) including a dispensing opening (401) and a side wall (42), said hood including in the inside at least one sealing profile (500, 520) that, in a closing position, sealingly interacts with the side wall (42) of the head (4) in the vicinity of said dispensing device.

Description

Capot de protection pour tête de distribution de produit fluide Protective cover for fluid dispensing head
La présente invention concerne un capot de protection d'une tête de distribution d'un distributeur de produit fluide, notamment du type à pulvérisation nasale, ainsi qu'une telle tête de distribution et un distributeur de produit fluide comportant un tel capot de protection.The present invention relates to a protective cover for a dispensing head of a fluid dispenser, in particular of the nasal spray type, as well as such a dispensing head and a fluid dispenser comprising such a protective cap.
Il est connu dans l'état de la technique d'utiliser un capot amovible pour obturer l'orifice de distribution d'un tel distributeur. De tels capots sont notamment décrits dans les documents WO 00/61454 et WO 98/00354.It is known in the state of the art to use a removable cover to close the dispensing orifice of such a dispenser. Such covers are described in particular in WO 00/61454 and WO 98/00354.
Ce type de capot amovible, lorsqu'il est mis en position de fermeture, obture de manière étanche l'orifice de distribution à l'aide d'un élément d'obturation fixé au fond du capot. Il peut s'agir d'un tampon déformable ou bouchon élastomère, de matériau différent de celui du capot et fixé sur la paroi de fond du capot. L'obturation par le tampon ou bouchon se fait directement au niveau ou à l'intérieur de l'orifice, ce qui assure une bonne étanchéité. Mais après plusieurs utilisations successives du distributeur, il existe un risque de déformation irréversible de ce type de tampon ou bouchon élastomère, ce qui entraîne une étanchéité peu fiable. De plus, les dimensions de l'élément d'obturation doivent être adaptées précisément à chaque type d'orifice de distribution. Le capot lui-même doit être précisément adapté aux dimensions de la tête de distribution, et sa fabrication nécessite donc un contrôle dimensionnel précis pour permettre une parfaite coopération étanche entre l'élément d'obturation et l'orifice. En particulier, si l'obturateur n'est pas dimensionné de manière adéquate, du produit peut s'évaporer, avec le risque d'une distribution de dose incomplète lors de l'actionnement suivant. Du produit peut également sécher à l'intérieur de la tête de distribution ce qui peut boucher l'orifice et rendre la distribution du produit difficile, voire impossible. Dans d'autres cas, la mise en place du capot sur la tête peut s'avérer difficile, voire impossible, si les dimensions ne sont pas précisément adaptées. Les documents EP-O 131 501 , WO 2007/009872 et EP-O 775 530 décrivent d'autres dispositifs de l'état de la technique, comprenant des capots de protection simplement emboîtés de manière amovible sur la tête de distribution au niveau de leur bord inférieur.This type of removable cover, when it is placed in the closed position, sealingly closes the dispensing orifice with the aid of a shutter element fixed to the bottom of the cover. It may be a deformable pad or elastomeric stopper, of material different from that of the cover and fixed on the bottom wall of the cover. The closure by the plug or stopper is directly at or inside the orifice, which ensures a good seal. But after several successive uses of the dispenser, there is a risk of irreversible deformation of this type of buffer or elastomeric plug, resulting in unreliable sealing. In addition, the dimensions of the shutter element must be adapted precisely to each type of dispensing orifice. The hood itself must be precisely adapted to the dimensions of the dispensing head, and its manufacture therefore requires precise dimensional control to allow a perfect sealing cooperation between the closure element and the orifice. In particular, if the shutter is not dimensioned adequately, product may evaporate, with the risk of incomplete dose distribution at the next actuation. Product can also dry inside the dispensing head which can plug the orifice and make dispensing the product difficult or impossible. In other cases, the introduction of the hood on the head can be difficult, if not impossible, if the dimensions are not precisely adapted. The documents EP-0 131 501, WO 2007/009872 and EP-0 775 530 disclose other devices of the state of the art, comprising protective caps simply removably nested on the dispensing head at their level. lower edge.
La présente invention a pour but de fournir un capot de protection qui ne présente pas les inconvénients précités.The present invention aims to provide a protective cover which does not have the aforementioned drawbacks.
En particulier, la présente invention a pour but de fournir un capot de protection qui garantit une meilleure étanchéité, avec une durée de vie améliorée du dispositif de distribution.In particular, the present invention aims to provide a protective cover which ensures a better seal, with an improved service life of the dispensing device.
La présente invention a aussi pour but de fournir un capot de protection qui soit simple et peu coûteux à fabriquer et à assembler.The present invention also aims to provide a protective cover that is simple and inexpensive to manufacture and assemble.
La présente invention a également pour but de fournir un capot de protection qui s'adapte facilement sur les têtes de distribution des distributeurs existants, et qui ne nécessite aucune modification de la tête de distribution, en offrant une meilleure compensation dimensionnelle.The present invention also aims to provide a protective cover that easily adapts to the dispensing heads of existing dispensers, and which does not require any modification of the dispensing head, offering better dimensional compensation.
La présente invention a donc pour objet un capot de protection, destiné à recouvrir dans une position de fermeture une tête de distribution d'un distributeur de produit fluide, ladite tête comprenant une paroi d'extrémité incorporant un orifice de distribution et une paroi latérale, ledit capot comprenant à l'intérieur au moins un profil d'étanchéité qui, en position de fermeture, coopère de manière étanche avec la paroi latérale de la tête, à proximité dudit orifice de distribution.The present invention therefore relates to a protective cover, intended to cover in a closed position a dispensing head of a fluid dispenser, said head comprising an end wall incorporating a dispensing orifice and a side wall, said cover comprising inside at least one sealing profile which, in the closed position, cooperates sealingly with the side wall of the head, close to said dispensing orifice.
Avantageusement, ledit au moins un profil d'étanchéité est disposé en saillie sur une paroi interne latérale et/ou de fond du capot.Advantageously, said at least one sealing profile is disposed projecting on a lateral inner wall and / or bottom of the cover.
Avantageusement, ledit au moins un profil d'étanchéité, en position de fermeture, est déformé et/ou comprimé de manière étanche contre la tête de distribution.Advantageously, said at least one sealing profile, in the closed position, is deformed and / or compressed in a sealed manner against the dispensing head.
Avantageusement, ledit au moins un profil d'étanchéité comprend au moins un lèvre et/ou un bourrelet et/ou une languette et/ou une bride et/ou un anneau.Advantageously, said at least one sealing profile comprises at least one lip and / or a bead and / or a tongue and / or a flange and / or a ring.
Avantageusement, il est réalisé en une seule pièce monobloc. Avantageusement, une paroi latérale du capot a une forme au moins partiellement conique.Advantageously, it is made in one piece. Advantageously, a side wall of the cover has an at least partially conical shape.
Avantageusement, il est réalisé en un matériau plastique sensiblement rigide.Advantageously, it is made of a substantially rigid plastic material.
Avantageusement, il comporte des moyens de fixation pour le maintenir fixement sur la tête de distribution.Advantageously, it comprises fixing means for holding it firmly on the dispensing head.
La présente invention a aussi pour objet une tête de distribution d'un distributeur de produit fluide, caractérisé en ce qu'elle comporte un capot tel que décrit ci-dessus.The present invention also relates to a dispensing head of a fluid dispenser, characterized in that it comprises a cap as described above.
Avantageusement, la tête de distribution comporte un poussoir nasal comportant un orifice de distribution central axial réalisé dans la paroi d'extrémité de ladite tête de distribution, ledit capot étant réalisé sous la forme d'un manchon creux se fixant autour dudit poussoir nasal, ledit capot comportant un profil d'étanchéité annulaire se projetant depuis sa paroi interne latérale, et qui coopère de manière étanche, avec la paroi latérale de la tête de distribution en position fermée.Advantageously, the dispensing head comprises a nasal pusher having an axial central distribution orifice made in the end wall of said dispensing head, said cap being made in the form of a hollow sleeve attached around said nasal pusher, said bonnet having an annular sealing profile projecting from its side inner wall, and which cooperates sealingly, with the side wall of the dispensing head in the closed position.
Avantageusement, la tête de distribution comporte un poussoir nasal comportant un orifice de distribution central axial réalisé dans la paroi d'extrémité de ladite tête de distribution, ledit capot étant réalisé sous la forme d'un manchon creux se fixant autour dudit poussoir nasal, ledit capot comportant un profil d'étanchéité annulaire se projetant depuis sa paroi de fond, et qui coopère de manière étanche, avec la paroi latérale de la tête de distribution en position fermée.Advantageously, the dispensing head comprises a nasal pusher having an axial central distribution orifice made in the end wall of said dispensing head, said cap being made in the form of a hollow sleeve attached around said nasal pusher, said bonnet having an annular sealing profile projecting from its bottom wall, and which cooperates sealingly, with the side wall of the dispensing head in the closed position.
La présente invention a encore pour objet un distributeur de produit fluide, comportant un réservoir de produit et un organe de distribution tel qu'une pompe ou une valve, caractérisé en ce qu'il comporte une tête de distribution telle que décrite ci-dessus.The present invention also relates to a fluid dispenser, comprising a product reservoir and a dispensing member such as a pump or a valve, characterized in that it comprises a dispensing head as described above.
D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description détaillée suivante de deux modes de réalisation avantageux de l'invention, donnés à titre d'exemples non limitatifs, en référence aux dessins joints, sur lesquels : - la figure 1 est une vue schématique en coupe longitudinale d'un capot de protection selon un premier mode de réalisation de l'invention, en position de fermeture sur une tête de distribution nasale,Other features and advantages of the present invention will emerge during the following detailed description of two advantageous embodiments of the invention, given by way of non-limiting examples, with reference to the accompanying drawings, in which: - Figure 1 is a schematic longitudinal sectional view of a protective cover according to a first embodiment of the invention, in the closed position on a nasal dispensing head,
- la figure 2 est une vue partielle agrandie du capot de la figure 1 ,FIG. 2 is an enlarged partial view of the cover of FIG. 1,
- la figure 3 est une vue schématique en coupe longitudinale d'un capot de protection selon un deuxième mode de réalisation de l'invention, en position de fermeture sur une tête de distribution nasale,FIG. 3 is a diagrammatic view in longitudinal section of a protective cover according to a second embodiment of the invention, in the closed position on a nasal dispensing head,
- la figure 4 est une vue partielle agrandie du capot de la figure 3.FIG. 4 is an enlarged partial view of the cover of FIG. 3.
La présente invention couvre un capot de protection ainsi qu'une tête de distribution et un distributeur de produit fluide comportant un tel capot de protection. Le capot de protection selon l'invention s'appliquant à tout type de distributeur, ce dernier ne sera pas décrit en détail ci-après.The present invention covers a protective cover and a dispensing head and a fluid dispenser comprising such a protective cover. The protective cover according to the invention applies to any type of distributor, the latter will not be described in detail below.
Les figures 1 à 4 représentent schématiquement un capot de protection 5 selon l'invention, recouvrant une tête de distribution 4, ayant avantageusement la forme d'un poussoir de pulvérisation nasale adapté à pulvériser un spray dans une narine. Bien entendu, le capot 5 de l'invention ne se limite pas à la protection de ce type de poussoir. Le capot de l'invention s'applique en fait sur tout type de tête de distribution comprenant un orifice de distribution de produit susceptible de s'évaporer et/ou de sécher et/ou de boucher l'orifice de distribution.Figures 1 to 4 show schematically a protective cover 5 according to the invention, covering a dispensing head 4, preferably having the shape of a nasal spray pusher adapted to spray a spray into a nostril. Of course, the cover 5 of the invention is not limited to the protection of this type of pusher. The hood of the invention is in fact applied to any type of dispensing head comprising a product dispensing orifice capable of evaporating and / or drying and / or plugging the dispensing orifice.
En référence aux figures 1 et 3, le poussoir 4 comprend dans sa paroi d'extrémité axiale 40 un orifice de distribution axial 401. Du côté opposé, une surface d'appui 44 pour actionner le distributeur peut être prévue, ainsi que des moyens de connexion 7 de la tête 4 sur un organe de distribution, tel qu'une pompe ou une valve (non représentée). D'autres variantes sont aussi possibles, selon le type de distribution utilisé. Avantageusement, la tête comporte dans le canal d'expulsion menant à l'orifice 401 un gicleur interne ou insert 8 pour limiter le volume mort et créer une pulvérisation à travers l'orifice 401. La tête de distribution présente ainsi une paroi d'extrémité 40, qui incorpore l'orifice de distribution 401 , et une paroi latérale 42. Cette paroi latérale 42 peut elle-même comprendre une paroi latérale de bordure 420 située à proximité de la paroi d'extrémité 40 et une paroi latérale de base 421 située à la base du poussoir, à proximité de la surface d'appui 6.Referring to Figures 1 and 3, the pusher 4 comprises in its axial end wall 40 an axial distribution port 401. On the opposite side, a bearing surface 44 for actuating the distributor can be provided, as well as means for connection 7 of the head 4 on a dispensing member, such as a pump or a valve (not shown). Other variants are also possible, depending on the type of distribution used. Advantageously, the head comprises in the expulsion channel leading to the orifice 401 an internal nozzle or insert 8 to limit the dead volume and create a spray through the orifice 401. The dispensing head thus has an end wall 40, which incorporates the dispensing orifice 401, and a side wall 42. This wall lateral 42 may itself comprise an edge side wall 420 located near the end wall 40 and a base side wall 421 located at the base of the pusher, close to the bearing surface 6.
Un capot de protection amovible 5 est représenté dans sa position de fermeture sur les figures, sous la forme d'un manchon creux. Le capot comprend une paroi interne latérale 52 et une paroi axiale de fond 50. De manière avantageuse, le capot selon l'invention peut comporter une paroi latérale 52 de forme au moins partiellement conique, et donc particulièrement bien adaptable à différents types de poussoirs. Bien que dans ce mode de réalisation le capot 5 soit réalisé sous la forme d'un manchon creux allongé, il peut bien entendu avoir toute autre forme appropriée.A removable protective cover 5 is shown in its closed position in the figures, in the form of a hollow sleeve. The cover comprises a lateral inner wall 52 and an axial bottom wall 50. Advantageously, the cover according to the invention may comprise a lateral wall 52 of at least partially conical shape, and therefore particularly well adaptable to different types of pushers. Although in this embodiment the cover 5 is made in the form of an elongated hollow sleeve, it can of course have any other suitable shape.
Le capot peut également comporter, comme représenté sur les figures 1 et 3, des moyens de fixation 521 sur sa paroi latérale 52, pour le maintenir solidement en position de fermeture sur la tête de distribution 4. Les moyens de fixation du capot sur la tête 4 peuvent avoir toute forme quelconque appropriée. Par exemple, le capot peut être fixé par encliquetage ou vissé sur un filetage prévu sur le poussoir. Le capot peut être fixé sur la tête 4 ou à un autre élément du distributeur, tel que par exemple une bague de fixation ou le récipient de produit (non représentés). Les moyens de fixation 521 selon les deux modes de réalisation décrits, peuvent coopérer avec le poussoir 4 au niveau de sa paroi latérale de base 421 , comme visible sur les figures 1 et 3.The cover may also comprise, as represented in FIGS. 1 and 3, fastening means 521 on its lateral wall 52, to hold it securely in the closed position on the dispensing head 4. The fastening means of the cover on the head 4 may have any suitable form. For example, the cover can be fixed by snapping or screwed on a thread provided on the pusher. The cover can be attached to the head 4 or to another element of the dispenser, such as for example a fixing ring or the product container (not shown). The fixing means 521 according to the two embodiments described can cooperate with the pusher 4 at its base side wall 421, as can be seen in FIGS. 1 and 3.
En position de fermeture, le capot réalise l'étanchéité de l'orifice de distribution 401. Pour ce faire, le capot selon l'invention comprend au moins un profil d'étanchéité 500, 520 qui est disposé en saillie sur une de ses parois internes, à proximité dudit orifice de distribution. Le profil est avantageusement réalisé de manière monobloc avec le capot, par exemple lors du moulage de celui-ci, ce qui autorise toutes formes possibles pour ledit au moins un profil d'étanchéité. Avantageusement, le capot selon l'invention peut être formé d'une seule pièce monobloc, de préférence en un matériau plastique sensiblement rigide, qui permet à la fois de coopérer avec la tête de manière étanche, et d'être manipulé de manière aisée, fiable et sans risque par l'utilisateur.In the closed position, the hood seals the dispensing orifice 401. To do this, the hood according to the invention comprises at least one sealing profile 500, 520 which is arranged projecting on one of its walls. internal, near said dispensing orifice. The profile is advantageously made integrally with the cover, for example during the molding thereof, which allows all possible forms for said at least one sealing profile. Advantageously, the hood according to the invention may be formed of a single piece, preferably a substantially rigid plastic material, which allows both to cooperate with the head tightly, and to be handled easily, reliably and safely by the user.
Selon un premier mode de réalisation, visible sur les figures 1 et 2, le capot comprend à l'intérieur au moins un profil d'étanchéité 520 disposé en saillie sur une paroi interne latérale 52. Ledit au moins un profil d'étanchéité 520 est placé de telle sorte qu'en position de fermeture, il coopère de manière étanche avec la tête, au niveau de sa paroi latérale de bordure 420, peu éloignée de l'orifice de distribution 401.According to a first embodiment, visible in FIGS. 1 and 2, the cover comprises inside at least one sealing profile 520 disposed projecting on a lateral internal wall 52. Said at least one sealing profile 520 is positioned so that in the closed position, it cooperates sealingly with the head, at its side edge wall 420, not far from the dispensing orifice 401.
En référence à la figure 2, qui représente un détail agrandi de la figure 1 , le profil d'étanchéité se présente sous la forme d'un double bourrelet d'étanchéité annulaire 520 se projetant depuis la paroi interne latérale 52 du capot 5. Il est évident que le profil d'étanchéité pourrait comprendre un unique bourrelet annulaire au lieu de deux. De manière avantageuse, le capot peut comporter plusieurs autres bourrelets d'étanchéité afin de garantir une étanchéité optimale du dispositif. Ces bourrelets d'étanchéité 520, en position de fermeture, sont déformés et/ou comprimés de manière étanche contre la paroi latérale de bordure 420 de la tête de distribution, située vers l'extrémité supérieure du poussoir, proche de l'orifice. Le profil d'étanchéité, représenté par un double bourrelet annulaire sur les figures 1 et 2, pourrait bien entendu être remplacé par ou comprendre en outre au moins une lèvre, une languette, une bride, un anneau, ou tout autre forme venant en saillie depuis une paroi interne du capot, et capable en position de fermeture de coopérer de manière étanche avec la paroi latérale de bordure 420 du poussoir 4.With reference to FIG. 2, which represents an enlarged detail of FIG. 1, the sealing profile is in the form of a double annular sealing bead 520 projecting from the lateral inner wall 52 of the cover 5. it is obvious that the sealing profile could comprise a single annular bead instead of two. Advantageously, the cover may comprise several other sealing beads to ensure optimum sealing of the device. These sealing beads 520, in the closed position, are deformed and / or sealed against the edge side wall 420 of the dispensing head, located towards the upper end of the pusher, close to the orifice. The sealing profile, represented by a double annular bead in Figures 1 and 2, could of course be replaced by or further comprise at least one lip, a tongue, a flange, a ring, or any other form projecting from an inner wall of the hood, and capable in the closed position of sealingly cooperate with the edge side wall 420 of the pusher 4.
En référence à la figure 2, il est visible que l'orifice de distribution 401 du poussoir nasal 4 est ménagé au fond d'une sorte de cuvette 402 prévue dans la paroi d'extrémité de la tête 4. Cette réalisation correspond à une tête de distribution nasale typique. Lors de la fermeture, le capot s'engage autour du poussoir nasal jusqu'à ce que sa paroi de fond 50 vienne en appui sur la paroi d'extrémité 40 de la tête 4, dans la mesure où les dimensions respectives du capot 5 et de la tête 4 le permettent, comme c'est le cas sur les figures 1 et 2. Mais la paroi de fond 50 peut aussi ne pas venir en contact de la paroi d'extrémité 40 de la tête, du moment que le profil d'étanchéité 520 coopère de manière étanche avec la paroi latérale de bordure 420 de la tête en position de fermeture.Referring to Figure 2, it is visible that the dispensing orifice 401 of the nasal pusher 4 is formed at the bottom of a kind of bowl 402 provided in the end wall of the head 4. This embodiment corresponds to a head typical nasal distribution. When closing, the cover engages around the nasal pusher until its bottom wall 50 bears on the end wall 40 of the head 4, insofar as the respective dimensions of the cover 5 and of the head 4 allow it, as is the case in Figures 1 and 2. But the bottom wall 50 may also not come into contact of the end wall 40 of the head, as long as the sealing profile 520 sealingly engages with the edge side wall 420 of the head in the closed position.
En position de fermeture du capot, un petit volume d'air se retrouve emprisonné et intercalé entre la paroi d'extrémité 40 de la tête, la paroi de fond 50 du capot et le bourrelet annulaire 520. Le volume d'air emprisonné est suffisamment petit pour empêcher l'évaporation du produit et/ou son séchage à l'intérieur de l'orifice 401. Par contre, n'ayant pas d'élément d'obturation devant coopérer directement avec l'orifice de distribution 401 , le capot de l'invention permet de comparer aisément les tolérances dimensionnelles, créant un volume d'air plus ou moins grand en fonction de celles-ci. L'étanchéité étant réalisée sur le côté latéral de la tête, il n'y a plus d'obligation de prévoir un capot très précisément adapté à la tête, et la fabrication du capot en devient plus simple et moins coûteuse.In the closed position of the hood, a small volume of air is trapped and inserted between the end wall 40 of the head, the bottom wall 50 of the hood and the annular bead 520. The trapped air volume is sufficiently small to prevent the evaporation of the product and / or its drying inside the orifice 401. By cons, having no shutter element to cooperate directly with the dispensing orifice 401, the cover of the invention makes it possible to easily compare the dimensional tolerances, creating a greater or lesser volume of air as a function of these. Sealing being performed on the lateral side of the head, there is no longer any obligation to provide a hood very precisely adapted to the head, and the manufacture of the hood becomes simpler and less expensive.
Les figures 3 et 4 représentent un deuxième mode de réalisation de l'invention dans lequel le profil d'étanchéité du capot est différent. Les autres éléments, correspondant aux mêmes références numériques que sur les figures 1 et 2 ne seront donc pas explicités de nouveau.Figures 3 and 4 show a second embodiment of the invention wherein the hood sealing profile is different. The other elements, corresponding to the same numerical references as in FIGS. 1 and 2, will therefore not be explained again.
En référence à ces figures 3 et 4, le capot 5 comporte un profil d'étanchéité sous la forme d'une bride ou manchon d'étanchéité annulaire 500 se projetant depuis sa paroi de fond 50, et qui coopère de manière étanche avec la paroi latérale de bordure 420 de la tête 4 en position fermée. Avantageusement, la bride annulaire 500 est monobloc avec le capot et peut présenter une épaisseur décroissante à partir de la paroi de fond 50 du capot. En référence à la figure 4 qui représente un détail agrandi de la figure 3, la bride 500 est plus épaisse au niveau de sa base 510 qu'au niveau de son extrémité libre 520. La forme de cette bride annulaire permet à la fois une bonne solidité et une bonne résistance au niveau de sa base 510, et une bonne flexibilité et une bonne capacité d'étanchéité au niveau de son extrémité libre 520. Lors de la fermeture du capot, l'extrémité libre 520 de la bride d'étanchéité annulaire 500 s'emmanche autour de l'extrémité axiale du poussoir. La bride annulaire vient coopérer de manière étanche avec la paroi latérale de bordure 420 de la tête 4. Dans ce deuxième mode de réalisation, la paroi de fond du capot 50 ne vient pas en appui sur la paroi d'extrémité 40 de la tête 4. Seule la bride 500 vient en appui étanche contre la paroi latérale de bordure 420 de la tête. Des moyens de fixation 521 du capot à la tête, similaires à ceux du premier mode de réalisation peuvent également être prévus.With reference to these FIGS. 3 and 4, the cover 5 comprises a sealing profile in the form of an annular sealing flange or sleeve 500 projecting from its bottom wall 50, and which cooperates in a leaktight manner with the wall lateral edge 420 of the head 4 in the closed position. Advantageously, the annular flange 500 is integral with the cover and may have a decreasing thickness from the bottom wall 50 of the cover. Referring to Figure 4 which shows an enlarged detail of Figure 3, the flange 500 is thicker at its base 510 than at its free end 520. The shape of this annular flange allows both a good strength and good resistance at its base 510, and good flexibility and good sealing capacity at its free end 520. When closing the cover, the free end 520 of the annular sealing flange 500 fits around the axial end of the pusher. The annular flange cooperates sealingly with the wall 4. In this second embodiment, the bottom wall of the cover 50 does not bear against the end wall 40 of the head 4. Only the flange 500 bears against the edge side wall 420 of the head. Fixing means 521 of the hood to the head, similar to those of the first embodiment may also be provided.
De même que dans le premier mode de réalisation, seulement un petit volume d'air peut s'intercaler, en position de fermeture, entre la paroi d'extrémité 40 de la tête et la paroi de fond 50 du capot à l'intérieur de la bride annulaire. L'espace disponible pour ce volume d'air emprisonné en position fermée, est suffisamment petit pour empêcher toute évaporation ou séchage du produit à l'intérieur de l'orifice.As in the first embodiment, only a small volume of air can be inserted, in the closed position, between the end wall 40 of the head and the bottom wall 50 of the cover inside the the annular flange. The space available for this volume of air trapped in the closed position, is small enough to prevent any evaporation or drying of the product inside the orifice.
La présente invention fournit donc un capot de protection étanche de l'orifice de distribution d'un distributeur de produit fluide, qui est facile à mettre en place et à retirer, qui garantit une étanchéité de l'orifice en position fermée même après de nombreuses utilisations, et simultanément empêche toute évaporation ou séchage du produit au niveau dudit orifice de distribution dans cette position fermée.The present invention thus provides a sealed protective cover of the dispensing orifice of a fluid dispenser, which is easy to set up and remove, which ensures sealing of the orifice in the closed position even after many uses, and simultaneously prevents any evaporation or drying of the product at said dispensing orifice in this closed position.
La présente invention a été décrite ci-dessus en référence à deux modes de réalisation avantageux de celle-ci, mais il est clair qu'elle ne se limite pas à ces modes de réalisation.The present invention has been described above with reference to two advantageous embodiments thereof, but it is clear that it is not limited to these embodiments.
En particulier, la forme du capot, de même que la forme, la position et le nombre du(des) profil(s) d'étanchéité peuvent être quelconques. D'autre part, le(s) profil(s) d'étanchéité ne sont pas nécessairement réalisés de manière monobloc avec le capot, mais pourrai(en)t par exemple être surmoulé(s) ou similaire.In particular, the shape of the cover, as well as the shape, the position and the number of the (s) profile (s) of sealing can be any. On the other hand, the sealing profile (s) are not necessarily made integrally with the cover, but may for example be molded (s) or the like.
D'autres modifications peuvent être apportées par l'homme du métier sans sortir du cadre de la présente invention, tel que défini par les revendications annexées. Other modifications may be made by those skilled in the art without departing from the scope of the present invention, as defined by the appended claims.

Claims

Revendications claims
1.- Capot de protection, destiné à recouvrir dans une position de fermeture une tête de distribution (4) d'un distributeur de produit fluide, ladite tête comprenant une paroi d'extrémité (40) incorporant un orifice de distribution (401 ) et une paroi latérale (42), caractérisé en ce que ledit capot comprend à l'intérieur au moins un profil d'étanchéité (500, 520) qui, en position de fermeture, coopère de manière étanche avec la paroi latérale (42) de la tête (4), à proximité dudit orifice de distribution.1.- Protective cover, intended to cover in a closed position a dispensing head (4) of a fluid dispenser, said head comprising an end wall (40) incorporating a dispensing orifice (401) and a side wall (42), characterized in that said cover comprises inside at least one sealing profile (500, 520) which, in the closed position, cooperates sealingly with the lateral wall (42) of the head (4), close to said dispensing orifice.
2.- Capot selon la revendication 1 , dans lequel ledit au moins un profil d'étanchéité (500, 520) est disposé en saillie sur une paroi interne latérale (52) et/ou de fond (50) du capot (5).2. Hood according to claim 1, wherein said at least one sealing profile (500, 520) is disposed projecting on a lateral inner wall (52) and / or bottom (50) of the cover (5).
3.- Capot selon l'une quelconque des revendications précédentes, dans lequel ledit au moins un profil d'étanchéité (500, 520), en position de fermeture, est déformé et/ou comprimé de manière étanche contre la tête de distribution (4).3. Hood according to any one of the preceding claims, wherein said at least one sealing profile (500, 520), in the closed position, is deformed and / or sealed against the dispensing head (4). ).
4.- Capot selon l'une quelconque des revendications précédentes, dans lequel ledit au moins un profil d'étanchéité (500, 520) comprend au moins un lèvre et/ou un bourrelet et/ou une languette et/ou une bride et/ou un anneau.4. Hood according to any one of the preceding claims, wherein said at least one sealing profile (500, 520) comprises at least one lip and / or a bead and / or a tongue and / or a flange and / or a ring.
5.- Capot selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est réalisé en une seule pièce monobloc.5. Hood according to any one of the preceding claims, characterized in that it is made in one piece piece.
6.- Capot selon l'une quelconque des revendications précédentes, dans lequel une paroi latérale (52) du capot (5) a une forme au moins partiellement conique. 6. Hood according to any one of the preceding claims, wherein a side wall (52) of the cover (5) has a shape at least partially conical.
7.- Capot selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est réalisé en un matériau plastique sensiblement rigide.7. Hood according to any one of the preceding claims, characterized in that it is made of a substantially rigid plastic material.
8.- Capot selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des moyens de fixation (521 ) pour le maintenir fixement sur la tête de distribution.8. Hood according to any one of the preceding claims, characterized in that it comprises fixing means (521) for holding it fixedly on the dispensing head.
9.- Tête de distribution (4) d'un distributeur de produit fluide, caractérisé en ce qu'elle comporte un capot selon l'une quelconque des revendications précédentes.9. Dispensing head (4) of a fluid dispenser, characterized in that it comprises a cover according to any one of the preceding claims.
10.- Tête de distribution selon la revendication 9, comportant un poussoir nasal (4) comportant un orifice de distribution (401 ) central axial réalisé dans la paroi d'extrémité (40) de ladite tête de distribution (4), ledit capot (5) étant réalisé sous la forme d'un manchon creux se fixant autour dudit poussoir nasal (4), ledit capot (5) comportant un profil d'étanchéité annulaire (520) se projetant depuis sa paroi interne latérale, et qui coopère de manière étanche, avec la paroi latérale (420) de la tête (4) de distribution en position fermée.10. Dispensing head according to claim 9, comprising a nasal pusher (4) having a central axial distribution orifice (401) made in the end wall (40) of said dispensing head (4), said cover ( 5) being in the form of a hollow sleeve fixed around said nasal pusher (4), said cap (5) having an annular sealing profile (520) projecting from its lateral inner wall, and cooperating in a manner sealed, with the side wall (420) of the dispensing head (4) in the closed position.
11.- Tête de distribution selon la revendication 10, comportant un poussoir nasal (4) comportant un orifice de distribution (401 ) central axial réalisé dans la paroi d'extrémité (40) de ladite tête de distribution (4), ledit capot (5) étant réalisé sous la forme d'un manchon creux se fixant autour dudit poussoir nasal (4), ledit capot (5) comportant un profil d'étanchéité annulaire (500) se projetant depuis sa paroi de fond, et qui coopère de manière étanche, avec la paroi latérale (420) de la tête (4) de distribution en position fermée.11. Dispensing head according to claim 10, comprising a nasal pusher (4) having a central axial distribution orifice (401) formed in the end wall (40) of said dispensing head (4), said cover ( 5) being in the form of a hollow sleeve fixed around said nasal pusher (4), said cap (5) having an annular sealing profile (500) projecting from its bottom wall, and cooperating in a manner sealed, with the side wall (420) of the dispensing head (4) in the closed position.
12.- Distributeur de produit fluide, comportant un réservoir de produit et un organe de distribution tel qu'une pompe ou une valve, caractérisé en ce qu'il comporte une tête de distribution (4) selon l'une quelconque des revendications 9 à 11. 12.- fluid dispenser, comprising a product reservoir and a dispensing member such as a pump or a valve, characterized in that it comprises a dispensing head (4) according to any one of claims 9 to 11.
EP08805809A 2007-05-22 2008-05-19 Protection hood for a fluid product dispensing head Withdrawn EP2148711A2 (en)

Applications Claiming Priority (2)

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FR0755198A FR2916429B1 (en) 2007-05-22 2007-05-22 PROTECTIVE COVER FOR FLUID PRODUCT DISPENSING HEAD.
PCT/FR2008/050863 WO2008142357A2 (en) 2007-05-22 2008-05-19 Protection hood for a fluid product dispensing head

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WO2008142357A3 (en) 2009-03-26
FR2916429A1 (en) 2008-11-28
CN101678182A (en) 2010-03-24
US20100276457A1 (en) 2010-11-04
FR2916429B1 (en) 2012-10-05
JP2010527855A (en) 2010-08-19
WO2008142357A2 (en) 2008-11-27

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