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EP0628355A1 - Dispenser head, particularly for pasty products, and dispenser equipped therewith - Google Patents

Dispenser head, particularly for pasty products, and dispenser equipped therewith Download PDF

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Publication number
EP0628355A1
EP0628355A1 EP94401125A EP94401125A EP0628355A1 EP 0628355 A1 EP0628355 A1 EP 0628355A1 EP 94401125 A EP94401125 A EP 94401125A EP 94401125 A EP94401125 A EP 94401125A EP 0628355 A1 EP0628355 A1 EP 0628355A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
end piece
nozzle
snap
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94401125A
Other languages
German (de)
French (fr)
Other versions
EP0628355B1 (en
Inventor
Jean-Louis Gueret
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.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Publication of EP0628355A1 publication Critical patent/EP0628355A1/en
Application granted granted Critical
Publication of EP0628355B1 publication Critical patent/EP0628355B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B11/0005—Components or details
    • B05B11/0008—Sealing or attachment arrangements between sprayer and container
    • B05B11/0013—Attachment arrangements comprising means cooperating with the inner surface of the container
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1032—Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • 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
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
    • 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
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/18—Controlling escape of air from containers or receptacles during filling

Definitions

  • the invention relates to a head for a product dispenser, of the type which includes a nozzle intended to be placed on a container containing the product to be dispensed, this nozzle comprising a bottom provided with a sleeve in which is fixed by snap-fastening. a part to which a pump is linked, sealing means being provided between the end piece and the part to cooperate when this part has been slammed on the sleeve of the end piece.
  • a head of this kind is known from FR-A-2 669 244 which provides, in particular, a transfer part capable of being slammed into the sleeve of the nozzle, while the pump is crimped onto the transfer part.
  • the container containing the product to be dispensed consists of a flexible pocket on which the endpiece is placed. This head allows, with liquids, to fill the pocket then to slam the transfer part without practically introducing air into the pocket.
  • viscous products in particular pasty products
  • viscous products generally contain air but, in addition, the filling of the container, in particular of the pocket, with the viscous product is almost inevitably accompanied by imprisonment of air pockets or "air prisoners" "harmful for further use.
  • the object of the invention is, above all, to provide a head for a product dispenser, of the kind defined above, which makes it possible to fill the container, in particular with a viscous or pasty product, reducing to a minimum or preferably by removing the "prisoners of air".
  • a head for a product dispenser is characterized in that the end piece includes retaining means capable of holding the said part in a pre-snap position where the sealing means between part and end piece do not yet cooperate and that passage means are provided between the external surface of the part and the internal surface of the sleeve in which the part is engaged in the pre-snap position to maintain communication between the interior of the container and the exterior in this pre-snap position.
  • the sealing means may comprise a sealing lip forming a cylindrical skirt coaxial with the end piece, provided in the center of the bottom of the end piece around a passage opening, this lip being suitable for applying in a sealed manner against the internal cylindrical surface of the part when it is slammed on the nozzle; advantageously, the retaining means are suitable for holding the part in a pre-snap position such that the lower edge of the part is located above the upper edge of the sealing lip.
  • the retaining means may comprise a peripheral bead provided on the internal wall of the sleeve of the nozzle suitable for retaining the lower edge of the part in the pre-snap position, the crossing of this bead being possible by exerting sufficient effort.
  • the aforesaid part has a cylindrical shape suitable for marrying the internal surface of the sleeve itself cylindrical and the passage means are arranged to determine longitudinal channels between said surfaces, ensuring communication between the interior of the container and the exterior when the part is in the pre-snap position.
  • the above passage means may include longitudinal grooves provided on the external surface of the part and parallel to the generatrices of this part, the length being sufficient so that their upper end is located above the upper edge of the sleeve of the end piece. the part is in the pre-snap position.
  • the said part can be a transfer part independent of the pump body, which is fixed to said part, in particular by crimping.
  • the part can be an integral part of the pump body and be constituted by a cylindrical skirt which snaps directly into the sleeve of the nozzle.
  • the invention also relates to a product dispenser, in particular a pasty product, equipped with a head as defined above.
  • Figure 1 of these drawings is a partial axial sectional view, with parts on the outside, of a distributor head according to the invention, while the part on which the pump is fixed is in the pre-plating position.
  • Figure 2 shows, similarly to Figure 1, the distributor head after breakdown of the part carrying the pump.
  • Figure 3 shows, similarly to Figure 1, an alternative embodiment in which the part intended to be slammed on the nozzle is an integral part of the body of a piston pump.
  • Figure 4 finally, shows, similarly to Figure 2, a dispenser head in which the piece slammed into the sleeve of the nozzle is an integral part of the body of a diaphragm pump.
  • a head 1 for a dispenser D of pasty product P for example a cream.
  • the head 1 comprises a tip 2 in the form of a bowl comprising a cylindrical wall 3 and a transverse bottom 4.
  • the tip is placed on a container 5 constituted by a flexible pocket.
  • Most of the wall 3 is threaded into the pocket 5 and fixed in a sealed manner, for example by welding.
  • the bottom 4 is provided with a cylindrical sleeve 6 projecting into the bowl.
  • an opening 7 is provided in the central part of the bottom 4, surrounded by the sleeve.
  • This opening 7 is surrounded by a sealing lip 8 forming a cylindrical skirt, coaxial with the sleeve 6 and projecting into the bowl.
  • the bottom 4 On the side opposite to the lip 8, the bottom 4 has tongues 9 projecting downwards, distributed over the periphery of the opening 7, playing an anti-prisoner role, that is to say preventing bonding faces of the pocket 5 against each other when the product is removed.
  • the sleeve 6 has on its internal surface, in the vicinity of its upper end, a groove 10 intended for a snap fastening of a part 11 comprising a snap ring 12 suitable for cooperating with the groove 10.
  • the part 11 has a shape cylindrical of revolution, the outside diameter of which is equal to the inside diameter of the sleeve 6.
  • the lip 8 is applied sealingly against the internal wall of the part 11.
  • This part 11, in the example of FIGS. 1 and 2 is a transfer part on which is crimped, along an edge 13, a pump 14 provided with a tubular actuating rod 15.
  • the part 11 has, on its outer surface, grooves or ridges 16 parallel to the generatrices, distributed over the entire periphery and extending from the lower edge of the part 11 to a line L situated below the snap ring 12.
  • the sleeve 6 has, on its internal wall, a retaining means R constituted by a peripheral bead 17 located below the groove 10. This bead 17 is able to cooperate with the lower edge of the part 11, as illustrated in the Figure 1, to retain this part in a pre-snap position.
  • the axial length of the grooves 16 is chosen such that the line L, of the upper ends of the grooves 16, is located above the upper edge of the sleeve 6 so that communication remains between the interior of the pocket 5 and the exterior, in this pre-breakdown position, by means of said grooves 16.
  • the passage means between the interior of the pocket 5 and the exterior, for this pre-snap position, may include grooves on the internal surface of the sleeve 6, or ribs on the external surface of the part 11 and / or the internal surface of the sleeve 6.
  • the bead 17 has a reduced radial dimension so that it can be crossed by the lower edge of the part 11 for the purpose of breakdown, if a sufficient pushing force is exerted.
  • the upper end of the end-piece 2 has a rim 2 a suitable for snapping onto the end of a rigid cylindrical envelope E serving to protect the flexible bag 5.
  • the filling of the bag 5 is carried out as follows.
  • the pocket 5 After having fitted the pocket 5 with the nozzle 2, devoid of the part 11, the pocket 5 is filled with product P through the opening 7.
  • This filling can be carried out under vacuum or in the open air. At the end of filling, it returns to atmospheric pressure (if it has been operated under vacuum) and the part 11 is installed in the pre-snap position, as illustrated in FIG. 1, the lower edge of the part 11 being in abutment against the bead 17.
  • the assembly is placed under vacuum so that the air which may have remained trapped in the product P is evacuated through the grooves or grooves 16.
  • the breakdown is carried out of the part 11 by pushing it into the sleeve 6 until the rod 12 enters the groove 10 and it is returned to atmospheric pressure.
  • the invention makes it possible to fill the bag 5 with a pasty product, in a correct manner vis-à-vis the functional and compatibility tests.
  • part 111 intended to be slammed into the sleeve 106 is an integral part of the body of the pump 114 which is of the piston type q.
  • Figure 4 shows another alternative embodiment in which the part 211 shown in the slammed position in the sleeve 206, is an integral part of the body of a pump 214, with diaphragm M, equipped with a valve 18 made of elastomeric material.
  • the invention makes it possible to fill the flexible bag 5, 105, 205 under vacuum without creating "air traps” and to snap the part 11, 111, 211 from its pre-slam position, just after emptying.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

La tête (1) pour distributeur de produit, comprend un embout (2) destiné à être placé sur un récipient (5) contenant le produit à distribuer, cet embout (2) comportant un fond (4) muni d'un manchon (6) dans lequel est fixé par claquage une pièce (11) à laquelle est liée une pompe (14) ; des moyens d'étanchéité (8) sont prévus entre l'embout (2) et la pièce (11) pour coopérer lorsque cette pièce (11) a été claquée sur le manchon (6) de l'embout. L'embout comporte de moyens de retenue (R) propres à maintenir la susdite pièce dans une position de pré-claquage où les moyens d'étanchéité (8) entre pièce et embout ne coopèrent pas encore et des moyens de passage (16) sont prévus entre la surface extérieure de la pièce (11) et la surface interne du manchon (6)dans lequel la pièce est engagée en position de pré-claquage pour maintenir une communication entre l'intérieur du récipient (5) et l'extérieur, dans cette position de pré-claquage.

Figure imgaf001
The head (1) for product dispenser, comprises a nozzle (2) intended to be placed on a container (5) containing the product to be dispensed, this nozzle (2) comprising a bottom (4) provided with a sleeve (6 ) in which is fixed by snap a part (11) to which is linked a pump (14); sealing means (8) are provided between the end piece (2) and the part (11) to cooperate when this part (11) has been slammed on the sleeve (6) of the end piece. The end piece comprises retaining means (R) suitable for holding the above-mentioned part in a pre-snap position where the sealing means (8) between part and end piece do not yet cooperate and passage means (16) are provided between the external surface of the part (11) and the internal surface of the sleeve (6) in which the part is engaged in the pre-snap position to maintain communication between the interior of the container (5) and the exterior, in this pre-breakdown position.
Figure imgaf001

Description

L'invention est relative à une tête pour distributeur de produit, du genre de celles qui comprennent un embout destiné à être placé sur un récipient contenant le produit à distribuer, cet embout comportant un fond muni d'un manchon dans lequel est fixé par claquage une pièce à laquelle est liée une pompe, des moyens d'étanchéité étant prévus entre l'embout et la pièce pour coopérer lorsque cette pièce a été claquée sur le manchon de l'embout.The invention relates to a head for a product dispenser, of the type which includes a nozzle intended to be placed on a container containing the product to be dispensed, this nozzle comprising a bottom provided with a sleeve in which is fixed by snap-fastening. a part to which a pump is linked, sealing means being provided between the end piece and the part to cooperate when this part has been slammed on the sleeve of the end piece.

Une tête de ce genre est connue d'après FR-A-2 669 244 qui prévoit, notamment, une pièce transfert propre à être claquée dans le manchon de l'embout, tandis que la pompe est sertie sur la pièce transfert. Le récipient contenant le produit à distribuer est constitué par une poche souple sur laquelle est placé l'embout. Cette tête permet, avec des liquides, de remplir la poche puis de claquer la pièce transfert sans introduire pratiquement d'air dans la poche.A head of this kind is known from FR-A-2 669 244 which provides, in particular, a transfer part capable of being slammed into the sleeve of the nozzle, while the pump is crimped onto the transfer part. The container containing the product to be dispensed consists of a flexible pocket on which the endpiece is placed. This head allows, with liquids, to fill the pocket then to slam the transfer part without practically introducing air into the pocket.

L'expérience a montré que l'utilisation d'une telle tête pour des produits visqueux, notamment pâteux, n'est pas aussi satisfaisante que dans le cas de produits liquides. En effet, les produits visqueux contiennent généralement de l'air mais, en plus, le remplissage du récipient, notamment de la poche, avec le produit visqueux s accompagne pratiquement inévitablement d'un emprisonnement de poches d'air ou "prisonniers d'air" néfastes pour l'utilisation ultérieure.Experience has shown that the use of such a head for viscous products, in particular pasty products, is not as satisfactory as in the case of liquid products. In fact, viscous products generally contain air but, in addition, the filling of the container, in particular of the pocket, with the viscous product is almost inevitably accompanied by imprisonment of air pockets or "air prisoners" "harmful for further use.

L'invention a pour but, surtout, de fournir une tête pour distributeur de produit, du genre défini précédemment, qui permette d'effectuer le remplissage du récipient, notamment avec un produit visqueux ou pâteux, en réduisant au minimum ou de préférence en supprimant les "prisonniers d'air".The object of the invention is, above all, to provide a head for a product dispenser, of the kind defined above, which makes it possible to fill the container, in particular with a viscous or pasty product, reducing to a minimum or preferably by removing the "prisoners of air".

Selon l'invention, une tête pour distributeur de produit, du genre défini précédemment, est caractérisée par le fait que l'embout comporte des moyens de retenue propres à maintenir la susdite pièce dans une position de pré-claquage où les moyens d'étanchéité entre pièce et embout ne coopèrent pas encore et que des moyens de passage sont prévus entre la surface extérieure de la pièce et la surface interne du manchon dans lequel la pièce est engagée en position de pré-claquage pour maintenir une communication entre l'intérieur du récipient et l'extérieur dans cette position de pré-claquage.According to the invention, a head for a product dispenser, of the kind defined above, is characterized in that the end piece includes retaining means capable of holding the said part in a pre-snap position where the sealing means between part and end piece do not yet cooperate and that passage means are provided between the external surface of the part and the internal surface of the sleeve in which the part is engaged in the pre-snap position to maintain communication between the interior of the container and the exterior in this pre-snap position.

Dans ces conditions, pour le remplissage, il est possible de maintenir sous vide le produit du récipient alors que la pièce est en position de pré-claquage, grâce aux moyens de passage prévus à cet effet. Le claquage de la pièce pourra se faire sans retard, immédiatement après avoir fait le vide.Under these conditions, for filling, it is possible to maintain the product in the container under vacuum while the part is in the pre-snap position, thanks to the passage means provided for this purpose. The breakdown of the part can be done without delay, immediately after making a vacuum.

Les moyens d'étanchéité peuvent comprendre une lèvre d'étanchéité formant jupe cylindrique coaxiale à l'embout, prévue au centre du fond de l'embout autour d'une ouverture de passage, cette lèvre étant propre à s'appliquer de manière étanche contre la surface cylindrique interne de la pièce lorsqu'elle est claquée sur l'embout ; avantageusement, les moyens de retenue sont propres à maintenir la pièce dans une position de pré-claquage telle que le bord inférieur de la pièce se trouve au-dessus du bord supérieur de la lèvre d'étanchéité.The sealing means may comprise a sealing lip forming a cylindrical skirt coaxial with the end piece, provided in the center of the bottom of the end piece around a passage opening, this lip being suitable for applying in a sealed manner against the internal cylindrical surface of the part when it is slammed on the nozzle; advantageously, the retaining means are suitable for holding the part in a pre-snap position such that the lower edge of the part is located above the upper edge of the sealing lip.

Les moyens de retenue peuvent comprendre un bourrelet périphérique prévu sur la paroi interne du manchon de l'embout propre à retenir le bord inférieur de la pièce en position de pré-claquage, le franchissement de ce bourrelet étant possible en exerçant un effort suffisant.The retaining means may comprise a peripheral bead provided on the internal wall of the sleeve of the nozzle suitable for retaining the lower edge of the part in the pre-snap position, the crossing of this bead being possible by exerting sufficient effort.

Généralement, la susdite pièce a une forme cylindrique propre à épouser la surface interne du manchon lui-même cylindrique et les moyens de passage sont agencés pour déterminer des canaux longitudinaux entre lesdites surfaces, assurant la communication entre l'intérieur du récipient et l'extérieur lorsque la pièce est en position de pré-claquage.Generally, the aforesaid part has a cylindrical shape suitable for marrying the internal surface of the sleeve itself cylindrical and the passage means are arranged to determine longitudinal channels between said surfaces, ensuring communication between the interior of the container and the exterior when the part is in the pre-snap position.

Les susdits moyens de passage peuvent comprendre des rainures longitudinales prévues sur la surface extérieure de la pièce et parallèles aux génératrices de cette pièce, la longueur étant suffisante pour que leur extrémité supérieure se trouve au-dessus du bord supérieur du manchon de l'embout lorsque la pièce est en position de pré-claquage.The above passage means may include longitudinal grooves provided on the external surface of the part and parallel to the generatrices of this part, the length being sufficient so that their upper end is located above the upper edge of the sleeve of the end piece. the part is in the pre-snap position.

La susdite pièce peut être une pièce transfert indépendante du corps de pompe, lequel est fixé sur ladite pièce, en particulier par sertissage.The said part can be a transfer part independent of the pump body, which is fixed to said part, in particular by crimping.

En variante, la pièce peut faire partie intégrante du corps de pompe et être constituée par une jupe cylindrique venant se claquer directement dans le manchon de l'embout.Alternatively, the part can be an integral part of the pump body and be constituted by a cylindrical skirt which snaps directly into the sleeve of the nozzle.

L'invention est également relative à un distributeur de produit, en particulier de produit pâteux, équipé d'une tête telle que définie précédemment.The invention also relates to a product dispenser, in particular a pasty product, equipped with a head as defined above.

L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos d'exemples de réalisation décrits avec référence aux dessins ci-annexés mais qui ne sont nullement limitatifs.The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below in connection with exemplary embodiments described with reference to the attached drawings but which do not are in no way limiting.

La figure 1 de ces dessins, est une vue en coupe axiale partielle, avec parties en extérieur, d'une tête de distributeur selon l'invention, alors que la pièce sur laquelle est fixée la pompe est en position de préclaquage.Figure 1 of these drawings is a partial axial sectional view, with parts on the outside, of a distributor head according to the invention, while the part on which the pump is fixed is in the pre-plating position.

La figure 2 montre, semblablement à la figure 1, la tête pour distributeur après claquage de la pièce portant la pompe.Figure 2 shows, similarly to Figure 1, the distributor head after breakdown of the part carrying the pump.

La figure 3 montre, semblablement à la figure 1, une variante de réalisation dans laquelle la pièce destinée à être claquée sur l'embout fait partie intégrante du corps d'une pompe à piston.Figure 3 shows, similarly to Figure 1, an alternative embodiment in which the part intended to be slammed on the nozzle is an integral part of the body of a piston pump.

La figure 4, enfin, montre, semblablement à la figure 2, une tête pour distributeur dans laquelle la pièce claquée dans le manchon de l'embout fait partie intégrante du corps d'une pompe à membrane.Figure 4, finally, shows, similarly to Figure 2, a dispenser head in which the piece slammed into the sleeve of the nozzle is an integral part of the body of a diaphragm pump.

En se reportant aux figures 1 et 2 des dessins, on peut voir une tête 1 pour un distributeur D de produit pâteux P, par exemple une crème.Referring to Figures 1 and 2 of the drawings, one can see a head 1 for a dispenser D of pasty product P, for example a cream.

La tête 1 comprend un embout 2 en forme de cuvette comprenant une paroi cylindrique 3 et un fond transversal 4. L'embout est placé sur un récipient 5 constitué par une poche souple. La majeure partie de la paroi 3 est enfilée dans la poche 5 et fixée de manière étanche, par exemple par soudage.The head 1 comprises a tip 2 in the form of a bowl comprising a cylindrical wall 3 and a transverse bottom 4. The tip is placed on a container 5 constituted by a flexible pocket. Most of the wall 3 is threaded into the pocket 5 and fixed in a sealed manner, for example by welding.

Le fond 4 est muni d'un manchon cylindrique 6 en saillie dans la cuvette. Dans la partie centrale du fond 4, entourée par le manchon, est prévue une ouverture 7.The bottom 4 is provided with a cylindrical sleeve 6 projecting into the bowl. In the central part of the bottom 4, surrounded by the sleeve, an opening 7 is provided.

Cette ouverture 7 est entourée par une lèvre d'étanchéité 8 formant jupe cylindrique, coaxiale au manchon 6 et en saillie dans la cuvette. Du côté opposé à la lèvre 8, le fond 4 comporte des languettes 9 en saillie vers le bas, réparties sur la périphérie de l'ouverture 7, jouant un rôle d'anti-prisonnier, c'est-à-dire empêchant le collage des faces de la poche 5 l'une contre l'autre lorsque le produit est prélevé.This opening 7 is surrounded by a sealing lip 8 forming a cylindrical skirt, coaxial with the sleeve 6 and projecting into the bowl. On the side opposite to the lip 8, the bottom 4 has tongues 9 projecting downwards, distributed over the periphery of the opening 7, playing an anti-prisoner role, that is to say preventing bonding faces of the pocket 5 against each other when the product is removed.

Le manchon 6 comporte sur sa surface interne, au voisinage de son extrémité supérieure, une gorge 10 destinée à une fixation par claquage d'une pièce 11 comportant un jonc de claquage 12 propre à coopérer avec la gorge 10. La pièce 11 a une forme cylindrique de révolution dont le diamètre extérieur est égal au diamètre intérieur du manchon 6. Lorsque la pièce 11 est claquée dans le manchon 6, comme illustré sur la figure 2, la lèvre 8 s'applique de manière étanche contre la paroi interne de la pièce 11. Cette pièce 11, dans l'exemple des figures 1 et 2, est une pièce transfert sur laquelle est sertie, suivant une bordure 13, une pompe 14 munie d'une tige tubulaire 15 d'actionnement. La pièce 11 comporte, sur sa surface extérieure, des rainures ou stries 16 parallèles aux génératrices, réparties sur toute la périphérie et s'étendant depuis le bord inférieur de la pièce 11 jusqu'à une ligne L située au-dessous du jonc de claquage 12.The sleeve 6 has on its internal surface, in the vicinity of its upper end, a groove 10 intended for a snap fastening of a part 11 comprising a snap ring 12 suitable for cooperating with the groove 10. The part 11 has a shape cylindrical of revolution, the outside diameter of which is equal to the inside diameter of the sleeve 6. When the part 11 is snapped into the sleeve 6, as illustrated in FIG. 2, the lip 8 is applied sealingly against the internal wall of the part 11. This part 11, in the example of FIGS. 1 and 2, is a transfer part on which is crimped, along an edge 13, a pump 14 provided with a tubular actuating rod 15. The part 11 has, on its outer surface, grooves or ridges 16 parallel to the generatrices, distributed over the entire periphery and extending from the lower edge of the part 11 to a line L situated below the snap ring 12.

Le manchon 6 comporte, sur sa paroi interne, un moyen de retenue R constitué par un bourrelet périphérique 17 situé au-dessous de la gorge 10. Ce bourrelet 17 est propre à coopérer avec le bord inférieur de la pièce 11, comme illustré sur la figure 1, pour retenir cette pièce dans une position de pré-claquage. La longueur axiale des rainures 16 est choisie de manière telle que la ligne L, des extrémités supérieures des rainures 16, soit située au-dessus du bord supérieur du manchon 6 de sorte qu'une communication subsiste entre l'intérieur de la poche 5 et l'extérieur, dans cette position de pré-claquage, par l'intermédiaire desdites rainures 16.The sleeve 6 has, on its internal wall, a retaining means R constituted by a peripheral bead 17 located below the groove 10. This bead 17 is able to cooperate with the lower edge of the part 11, as illustrated in the Figure 1, to retain this part in a pre-snap position. The axial length of the grooves 16 is chosen such that the line L, of the upper ends of the grooves 16, is located above the upper edge of the sleeve 6 so that communication remains between the interior of the pocket 5 and the exterior, in this pre-breakdown position, by means of said grooves 16.

En variante, les moyens de passage, entre l'intérieur de la poche 5 et l'extérieur, pour cette position de pré-claquage, peuvent comprendre des rainures sur la surface interne du manchon 6, ou des nervures sur la surface externe de la pièce 11 et/ou la surface interne du manchon 6.As a variant, the passage means, between the interior of the pocket 5 and the exterior, for this pre-snap position, may include grooves on the internal surface of the sleeve 6, or ribs on the external surface of the part 11 and / or the internal surface of the sleeve 6.

Le bourrelet 17 a une dimension radiale réduite de sorte qu'il puisse être franchi par le bord inférieur de la pièce 11 en vue du claquage, si l'on exerce un effort de poussée suffisant.The bead 17 has a reduced radial dimension so that it can be crossed by the lower edge of the part 11 for the purpose of breakdown, if a sufficient pushing force is exerted.

L'extrémité supérieure de l' embout 2 comporte un rebord 2a propre à s'encliqueter sur l'extrémité d'une enveloppe rigide cylindrique E servant à protéger la poche souple 5.The upper end of the end-piece 2 has a rim 2 a suitable for snapping onto the end of a rigid cylindrical envelope E serving to protect the flexible bag 5.

Le remplissage de la poche 5 s'effectue comme suit.The filling of the bag 5 is carried out as follows.

Après avoir équipé la poche 5 de l'embout 2, dépourvu de la pièce 11, on remplit la poche 5 en produit P à travers l'ouverture 7.After having fitted the pocket 5 with the nozzle 2, devoid of the part 11, the pocket 5 is filled with product P through the opening 7.

Ce remplissage peut s'effectuer sous vide ou à l'air libre. En fin de remplissage, on revient à pression atmosphérique (si l'on a opéré sous vide) et on installe la pièce 11 en position de pré-claquage, comme illustré sur la figure 1, le bord inférieur de la pièce 11 étant en butée contre le bourrelet 17. On place l'ensemble sous vide de sorte que l'air qui a pu rester prisonnier du produit P est évacué en passant par les rainures ou stries 16. Lorsqu'un vide suffisant a été établi, on effectue le claquage de la pièce 11 en l'enfonçant dans le manchon 6 jusqu'à ce que le jonc 12 entre dans la rainure 10 et on remet à la pression atmosphérique.This filling can be carried out under vacuum or in the open air. At the end of filling, it returns to atmospheric pressure (if it has been operated under vacuum) and the part 11 is installed in the pre-snap position, as illustrated in FIG. 1, the lower edge of the part 11 being in abutment against the bead 17. The assembly is placed under vacuum so that the air which may have remained trapped in the product P is evacuated through the grooves or grooves 16. When a sufficient vacuum has been established, the breakdown is carried out of the part 11 by pushing it into the sleeve 6 until the rod 12 enters the groove 10 and it is returned to atmospheric pressure.

L'invention permet de remplir la poche 5 avec un produit pâteux, de façon correcte vis-à-vis des tests de fonctionnement et de compatibilité.The invention makes it possible to fill the bag 5 with a pasty product, in a correct manner vis-à-vis the functional and compatibility tests.

En se reportant à la figure 3 on peut voir une variante de réalisation selon laquelle la pièce 111 destinée à être claquée dans le manchon 106 fait partie intégrante du corps de la pompe 114 qui est du type à piston q.Referring to Figure 3 we can see an alternative embodiment in which the part 111 intended to be slammed into the sleeve 106 is an integral part of the body of the pump 114 which is of the piston type q.

Les autres éléments de cette figure 3 identiques ou jouant des rôles analogues à des éléments déjà décrits à propos de la figure 1 sont désignés par des références numériques égales à la somme du nombre 100 et de la référence utilisée sur les figures 1 et 2.The other elements of this FIG. 3 which are identical or play roles analogous to elements already described in connection with FIG. 1 are designated by numerical references equal to the sum of the number 100 and the reference used in FIGS. 1 and 2.

La figure 4 montre une autre variante de réalisation dans laquelle la pièce 211 représentée en position claquée dans le manchon 206, fait partie intégrante du corps d'une pompe 214, à membrane M, équipée d'un clapet 18 en matière élastomère.Figure 4 shows another alternative embodiment in which the part 211 shown in the slammed position in the sleeve 206, is an integral part of the body of a pump 214, with diaphragm M, equipped with a valve 18 made of elastomeric material.

Les différents éléments du distributeur de la figure 4 jouant des rôles analogues à des éléments déjà décrits à propos des figures 1 et 2 sont désignés par des références numériques égales à la somme du nombre 200 et des références utilisées sur les figures 1 et 2, sans que leur description soit reprise.The various elements of the dispenser of FIG. 4 playing roles similar to elements already described in connection with FIGS. 1 and 2 are designated by numerical references equal to the sum of the number 200 and the references used in FIGS. 1 and 2, without that their description be repeated.

Quel que soit le mode de réalisation, l'invention permet d'effectuer des remplissages de la poche souple 5, 105, 205 sous vide sans créer de "prisonniers d'air" et de claquer la pièce 11, 111, 211 a partir de sa position de pré-claquage, juste après avoir fait le vide.Whatever the embodiment, the invention makes it possible to fill the flexible bag 5, 105, 205 under vacuum without creating "air traps" and to snap the part 11, 111, 211 from its pre-slam position, just after emptying.

Bien entendu, dans le cas des figures 3 et 4, on pourrait prévoir une pièce transfert indépendante du corps de pompe lequel serait fixé, notamment par sertissage, sur cette pièce transfert.Of course, in the case of Figures 3 and 4, one could provide a transfer piece independent of the pump body which would be fixed, in particular by crimping, on this transfer piece.

Claims (8)

Tête pour distributeur de produit, comprenant un embout destiné à être placé sur un récipient (5, 105, 205) contenant le produit à distribuer, cet embout comportant un fond (4, 104, 204) muni d'un manchon (6, 106, 206) dans lequel est fixé par claquage une pièce à laquelle est liée une pompe (14, 114, 214), des moyens d'étanchéité étant prévus entre l'embout (2, 102, 202) et la pièce (11, 111, 211) pour coopérer lorsque cette pièce a été claquée sur le manchon de l'embout, caractérisée par le fait que l'embout (2, 102, 202) comporte des moyens de retenue (R) propres à maintenir la susdite pièce (11, 111, 211) dans une position de pré-claquage où les moyens d'étanchéité (8, 108, 208) entre pièce et embout ne coopèrent pas encore et que des moyens de passage (16, 116, 216) sont prévus entre la surface extérieure de la pièce (11, 111, 211) et la surface interne du manchon (6, 106, 206) dans lequel la pièce est engagée en position de pré-claquage pour maintenir une communication entre l'intérieur du récipient (5, 105, 205) et l'extérieur dans cette position de préclaquage.Head for product dispenser, comprising a nozzle intended to be placed on a container (5, 105, 205) containing the product to be dispensed, this nozzle comprising a bottom (4, 104, 204) provided with a sleeve (6, 106 , 206) in which a part to which a pump (14, 114, 214) is attached by snap fastening, sealing means being provided between the end piece (2, 102, 202) and the part (11, 111 , 211) to cooperate when this part has been slammed on the sleeve of the end piece, characterized in that the end piece (2, 102, 202) comprises retaining means (R) suitable for holding the said part (11 , 111, 211) in a pre-snap position where the sealing means (8, 108, 208) between part and end piece do not yet cooperate and that passage means (16, 116, 216) are provided between the external surface of the part (11, 111, 211) and the internal surface of the sleeve (6, 106, 206) in which the part is engaged in the pre-snap position for maintain communication between the interior of the container (5, 105, 205) and the exterior in this pre-plating position. Tête selon la revendication 1, caractérisée par le fait que les moyens d'étanchéité comprennent une lèvre d'étanchéité (8, 108, 208) formant jupe cylindrique coaxiale à l'embout, prévue au centre du fond (4, 104, 204) de l'embout (2, 102, 202) autour d'une ouverture de passage (7, 107, 207), cette lèvre (8, 108, 208) étant propre à s'appliquer de manière étanche contre la surface cylindrique interne de la pièce (11, 111, 211) lorsque celle-ci est claquée sur l'embout, les moyen de retenue (R) étant propres à maintenir la pièce dans une position de pré-claquage telle que le bord inférieur de la pièce se trouve au-dessus de la lèvre d'étanchéité (8, 108, 208).Head according to claim 1, characterized in that the sealing means comprise a sealing lip (8, 108, 208) forming a cylindrical skirt coaxial with the end piece, provided in the center of the bottom (4, 104, 204) of the end piece (2, 102, 202) around a passage opening (7, 107, 207), this lip (8, 108, 208) being able to be applied in a sealed manner against the internal cylindrical surface of the part (11, 111, 211) when the latter is slammed onto the end piece, the retaining means (R) being suitable for holding the part in a pre-snap position such that the lower edge of the part is above the sealing lip (8, 108, 208). Tête selon la revendication 2, caractérisée par le fait que les moyens de retenue (R) comprennent un bourrelet périphérique (17, 117, 217) prévu sur la paroi interne du manchon (6, 106, 206) de l'embout propre à retenir le bord inférieur de la pièce (11, 111, 211) en position de pré-claquage, le franchissement de ce bourrelet étant possible en exerçant un effort suffisant.Head according to claim 2, characterized in that the retaining means (R) comprise a peripheral bead (17, 117, 217) provided on the internal wall of the sleeve (6, 106, 206) of the clean nozzle to be retained the lower edge of the part (11, 111, 211) in the pre-snap position, the crossing of this bead being possible by exerting sufficient effort. Tête selon l'une des revendications précédentes dans laquelle la pièce (11, 111, 211) a une forme cylindrique propre à épouser la surface interne du manchon, caractérisée par le fait que les moyens de passage (16, 116, 216) sont agencés pour déterminer des canaux longitudinaux entre lesdites surfaces, assurant la communication entre l'intérieur du récipient (5, 105, 205) et l'extérieur lorsque la pièce (11, 111, 211) est en position de pré-claquage.Head according to one of the preceding claims, in which the part (11, 111, 211) has a cylindrical shape suitable for conforming to the inner surface of the sleeve, characterized in that the passage means (16, 116, 216) are arranged to determine longitudinal channels between said surfaces, ensuring communication between the interior of the container (5, 105, 205) and the outside when the part (11, 111, 211) is in the pre-snap position. Tête selon la revendication 4, caractérisée par le fait que les moyens de passage comprennent des rainures longitudinales (16, 116, 216) prévues sur la surface extérieure de la pièce (11, 111, 211), parallèles aux génératrices de cette pièce, la longueur de ces rainures (16, 116, 216) étant suffisante pour que leur extrémité supérieure se trouve au-dessus du bord supérieur du manchon (6, 106, 206) de l'embout lorsque la pièce (11, 111, 211) est en position de pré-claquage.Head according to claim 4, characterized in that the passage means comprise longitudinal grooves (16, 116, 216) provided on the external surface of the part (11, 111, 211), parallel to the generatrices of this part, the length of these grooves (16, 116, 216) being sufficient so that their upper end is located above the upper edge of the sleeve (6, 106, 206) of the nozzle when the part (11, 111, 211) is in the pre-breakdown position. Tête selon l'une des revendications précédentes, caractérisée par le fait que la susdite pièce (11) est indépendante du corps de pompe, laquelle est fixée sur ladite pièce, en particulier par sertissage.Head according to one of the preceding claims, characterized in that the said part (11) is independent of the pump body, which is fixed to said part, in particular by crimping. Tête selon l'une des revendications 1 à 5, caractérisée par le fait que la susdite pièce (111, 211) fait partie intégrante du corps de pompe et est constituée par une jupe cylindrique venant se claquer directement dans le manchon (106, 206) de l'embout.Head according to one of claims 1 to 5, characterized in that the said part (111, 211) is an integral part of the pump body and is constituted by a cylindrical skirt which snaps directly into the sleeve (106, 206) from the mouthpiece. Distributeur de produit, en particulier de produit pâteux, caractérisé par le fait qu'il est équipé d'une tête (1) selon l'une des revendications précédentes.Product dispenser, in particular a pasty product, characterized in that it is equipped with a head (1) according to one of the preceding claims.
EP94401125A 1993-06-07 1994-05-20 Dispenser head, particularly for pasty products, and dispenser equipped therewith Expired - Lifetime EP0628355B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9306764A FR2706137B1 (en) 1993-06-07 1993-06-07 Head for a product dispenser, in particular a pasty product, and dispenser equipped with this head.
FR9306764 1993-06-07

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EP0628355A1 true EP0628355A1 (en) 1994-12-14
EP0628355B1 EP0628355B1 (en) 1997-07-23

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EP (1) EP0628355B1 (en)
JP (1) JP3636486B2 (en)
CA (1) CA2124899C (en)
DE (1) DE69404386T2 (en)
ES (1) ES2105553T3 (en)
FR (1) FR2706137B1 (en)

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Also Published As

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JP3636486B2 (en) 2005-04-06
CA2124899A1 (en) 1994-12-08
EP0628355B1 (en) 1997-07-23
ES2105553T3 (en) 1997-10-16
FR2706137B1 (en) 1995-08-18
FR2706137A1 (en) 1994-12-16
JPH072268A (en) 1995-01-06
DE69404386T2 (en) 1998-03-05
DE69404386D1 (en) 1997-09-04
US5509584A (en) 1996-04-23
CA2124899C (en) 2003-10-28

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