EP0368724B1 - Dispensing head for an additive, to be mounted on a container, and container provided with such a dispensing head - Google Patents

Dispensing head for an additive, to be mounted on a container, and container provided with such a dispensing head Download PDF

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Publication number
EP0368724B1
EP0368724B1 EP89403005A EP89403005A EP0368724B1 EP 0368724 B1 EP0368724 B1 EP 0368724B1 EP 89403005 A EP89403005 A EP 89403005A EP 89403005 A EP89403005 A EP 89403005A EP 0368724 B1 EP0368724 B1 EP 0368724B1
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EP
European Patent Office
Prior art keywords
container
dispensing head
chamber
tube
additive
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.)
Expired - Lifetime
Application number
EP89403005A
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German (de)
French (fr)
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EP0368724A1 (en
Inventor
Vincent De Laforcade
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LOreal SA
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LOreal SA
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/68—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
    • B65D83/682—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
    • B65D83/685—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head with one product being located in a chamber within, or forming part of, the dispensing head, e.g. for admixture during dispensing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/242—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for mixing or discharging of two or more components

Definitions

  • the invention relates to a dispensing head for an additive, intended to be mounted on the outlet of a container containing a product, generally delivered in the form of aerosol-foam or paste, said head being of the type which comprise a central channel for the passage of the product from the container and a chamber surrounding the central channel and containing the additive, means for removing the additive being provided towards the end of the chamber opposite the container, while means for entering the product into said chamber are provided to allow this product to drive the additive out of the chamber, in order to form beads of additive in the product delivered at the outlet of the central channel, a sliding element relative to the central channel being provided to close the passage between the container and the chamber, the central channel of the head comprising a section integral with the end of the head remote from the container and f bordered by a cylindrical wall which stops at a distance, considered along the active cylindrical surface extending the wall downwards, from the bottom wall of the chamber.
  • a dispensing head of this kind is known, for example from FR-A-1 341 226 and makes it possible to add to the product of the container an additive such as a dye or a perfume, at the time of use; this avoids prolonged storage contact between the additive and the product and possible deterioration.
  • the storage of the dispensing head however poses problems with regard to the conservation of the additive and its protection against the ambient atmosphere.
  • it is desirable that the mounting of the dispensing head on the container is carried out simply and quickly.
  • the object of the invention is, above all, to provide a dispensing head of the type defined above in which, during storage, the chamber containing the additive is well isolated from the atmosphere, said head having to allow rapid mounting on the container. , with simple commissioning.
  • a dispensing head for an additive intended to be mounted on the outlet of a container containing a product, generally delivered in the form of an aerosol-foam or paste comprises a central channel for the passage of the product. coming from the container and a chamber surrounding the central channel and containing the additive, means for removing the additive being provided towards the end of the chamber opposite the container, while means for entering the product into said chamber are provided to allow this product to drive the additive out of the chamber, in order to form beads of additive in the product delivered at the outlet of the central channel, a sliding element relative to the central channel being provided to close the passage between the container and the chamber, the central channel of the head comprising a section integral with the end of the.
  • the head remote from the container and formed by a cylindrical wall which stops at a distance, considered along the imaginary cylindrical surface extending the wall downward, from the bottom wall of the chamber, and is characterized in that the element is a tube mounted to slide relative to this central channel section and to a sleeve fixed to the bottom of the chamber, said tube having towards its end intended to be turned towards the container with openings in its wall, the assembly being such that in a storage position, the tubing cooperates only a minimum with said central channel section, this minimum cooperation being sufficient to ensure a tight closure, and the openings of said tubing do not communicate with the annular chamber which is thus isolated, while in a second working position, the tubing has been moved by sliding relative to the central channel section, and said openings establish communication between this central channel and the annular chamber.
  • the tubing is slidably mounted inside said central channel section.
  • the dispensing head comprises, on the container side, an outer wall forming a cylindrical sleeve, the inner surface of which is capable of closing the openings of the above-mentioned tubing when the latter is in the storage position; the cylindrical sleeve is extended, on the side opposite to the container, by a part tapered flare that connects to an outer cylindrical wall of the dispensing head.
  • the openings provided in the tubing can be formed by longitudinal notches which open onto the end of said tubing intended to be located towards the container.
  • the dispensing head is intended to be mounted on an outlet nozzle of a container, of cylindrical shape; the sleeve of the dispensing head is suitable for engaging with gentle friction on said nozzle, and the sliding tube has an outside diameter substantially equal to that of the nozzle so that the placement of the dispensing head on the container causes the tubing to slide under the action of the thrust of said nozzle.
  • the end of the central channel opening towards the outside is extended by a frustoconical part flaring on the side opposite to the container, and in particular allowing the product of the container to expand.
  • This frustoconical part is preferably bordered, at its outer end, by a peripheral ring, closing the annular chamber, ring in which are provided through holes constituting the outlet means for the additive.
  • Radial partitions in particular regularly angularly spaced apart, are advantageously provided in the chamber which surrounds the central channel.
  • the ratio of the diameter of the central channel to the sum of the diameters of the additive outlet holes is chosen according to the desired length for the beads formed in the product dispensed and according to the viscosity of the additive.
  • the dispensing head is closed, at its end remote from that intended to be mounted on the container, by a cover, in particular heat-sealed.
  • the other end of the dispensing head chamber is closed by the tubing in the storage position; if necessary, this closure may be supplemented by another heat-sealed cap on the corresponding end of the dispensing head.
  • the invention also relates to a container containing a product, generally delivered in the form of aerosol-foam or paste, characterized in that it is equipped with a dispensing head as defined above.
  • Figure 1 of these drawings shows in perspective with cut parts, a dispensing head according to the invention in the storage position, before mounting on the container.
  • Figure 2 shows, similarly to Figure 1, the dispensing head mounted on the container.
  • FIG. 3 is a section along line III-III of FIG. 4.
  • FIG. 4 finally, is a section along line IV-IV of FIG. 3.
  • a dispensing head 1 for an additive 2 is intended to be mounted on the outlet 3 of a container 4 containing a product.
  • the container 4 is a pressurized container capable of delivering, when the user exerts pressure on a valve, an aerosol-foam through the outlet 3.
  • the dispensing head 1 could be mounted on the outlet of a container of another type, for example on the outlet of a tube with a deformable wall, containing a paste, in particular a toothpaste.
  • the head 1 comprises a central channel 5 for the passage of the product coming from the container 4 and an annular chamber 6 surrounding the central channel 5 and the cylindrical wall 7 limiting this channel.
  • Chamber 6 contains the additive 2 and is limited towards the outside by a cylindrical wall 8 coaxial with the wall 7.
  • Radial partitions 9, between the wall 8 and the wall 7, are regularly spaced in the annular chamber 6 so as to compartmentalize it in the peripheral direction.
  • the cylindrical outer wall 8 is engaged with clamping and is fixed, in particular by welding, in a flange 10 ⁇ which is connected to a cylindrical sleeve 11 coaxial but of smaller diameter, by a frustoconical part 12 whose diameter gradually decreases from the flange 10 ⁇ towards the sleeve 11.
  • This frustoconical part 12 constitutes, as it were, the bottom of the annular chamber 6.
  • the partitions 9 extend up to the part 12 of which they are integral (see FIG. 4); the lower end of each partition 9 is inclined so as to match the surface of the part 12.
  • the cylindrical wall 7 forms a section integral with the end 13 of the head remote from the container 4.
  • the wall 7 stops at a certain distance d from the bottom wall 12, this distance d being considered along the cylindrical surface fictitious extending the wall 7 downwards.
  • the internal diameter of the sleeve 11 is equal to that of the wall 7.
  • a cylindrical tube 14 is slidably mounted relative to the section of the central channel 5 formed by the wall 7, inside this channel.
  • the tubing 14 has, towards its end intended to be turned towards the container 4, openings 15 in its wall, regularly distributed on the outskirts. These openings 15 are advantageously constituted by longitudinal notches which open onto the end of the tube 14 facing the container 4.
  • the assembly is designed so that, in a storage position, shown in FIG. 1, the tubing 14 cooperates only a minimum with the wall 7, enough however for the engagement of the upper end of the tubing 14 in the wall 7 provides a sealed closure, while the openings 15 do not communicate with the annular chamber 6 and are closed by the internal surface of the sleeve 11.
  • the annular chamber 6 is thus isolated from the central channel 5, on the space corresponding to the distance d , through the wall of the pipe 14.
  • the outlet 3 of the container is provided with a nozzle of cylindrical shape whose diameter is substantially equal to that of the tube 14; the sleeve 11 is suitable for engaging with gentle friction on said cylindrical nozzle of the outlet 3 so that the positioning of the head 1 on the container 4 causes the tubing 14 to slide inside the cylindrical wall 7 under the thrust of said outlet nozzle 3.
  • the end of the central channel 5 opening towards the outside is extended by a frustoconical part 16 flaring on the side opposite to the container 4 and allowing in particular the foam, coming from the container, to expand before taking charge the additive, for example a dye, which prevents destruction of the streaks formed by the additive.
  • This frustoconical part 16 is bordered, at its outer end, by a peripheral crown 17 closing the annular chamber 2. Passage holes 18, regularly spaced, are provided in this crown 17 and constitute the outlet means for the additive.
  • the ratio of the diameter of the central channel 5 to the sum of the diameters of the outlet holes 18 of the additive is chosen according to the desired length for the beads or ridges formed in the dispensed product, and according to the viscosity of the additive.
  • the dispensing head is closed by a heat-sealed cap on its end 13, and, on the other hand, by the tube 14 which occupies the position of FIG. 1.
  • a second heat-sealed lid could be provided on the end of the sleeve 11.
  • this sleeve 11 After removing the cover covering the end 13, and, if necessary, the cover covering the lower part of the sleeve 11, this sleeve 11 is engaged on the outlet nozzle 3. This causes the tubing to sink. 14 in the channel 5 as shown in FIG. 2. The annular chamber 6 is then placed in communication through the openings 15, with the central channel 5.
  • the ratio between the sum of the surfaces of the openings 15 and the transverse surface of the tubing 14 defines the proportion of foam which will enter the chamber 6, and therefore the length of the streaks on the strand of foam which leaves the channel 5.
  • the dispensing head according to the invention is particularly suitable for adding an additional product 2 to a main product leaving the channel 5 in the form of foam.
  • this head could also be suitable for adding an additional product to a main product leaving in the form of a paste.

Description

L'invention est relative à une tête de distribution pour un additif, destinée à être montée sur la sortie d'un récipient contenant un produit, délivré généralement sous forme d'aérosol-mousse ou de pâte, ladite tête étant du genre de celles qui comportent un canal central pour le passage du produit en provenance du récipient et une chambre entourant le canal central et contenant l'additif, des moyens de sortie de l'additif étant prévus vers l'extrémité de la chambre opposée au récipient, tandis que des moyens d'entrée du produit dans ladite chambre sont prévus pour permettre à ce produit de chasser l'additif hors de la chambre, afin de former des cordons d'additif dans le produit délivré à la sortie du canal central, un élément coulissant par rapport au canal central étant prévu pour fermer le passage entre le récipient et la chambre, le canal central de la tête comprenant une section solidaire de l'extrémité de la tête éloignée du récipient et formée par une paroi cylindrique qui s'arrête à une distance, considérée le long de la surface cylindrique active prolongeant la paroi vers le bas, de la paroi de fond de la chambre.The invention relates to a dispensing head for an additive, intended to be mounted on the outlet of a container containing a product, generally delivered in the form of aerosol-foam or paste, said head being of the type which comprise a central channel for the passage of the product from the container and a chamber surrounding the central channel and containing the additive, means for removing the additive being provided towards the end of the chamber opposite the container, while means for entering the product into said chamber are provided to allow this product to drive the additive out of the chamber, in order to form beads of additive in the product delivered at the outlet of the central channel, a sliding element relative to the central channel being provided to close the passage between the container and the chamber, the central channel of the head comprising a section integral with the end of the head remote from the container and f bordered by a cylindrical wall which stops at a distance, considered along the active cylindrical surface extending the wall downwards, from the bottom wall of the chamber.

Une tête de distribution de ce genre est connue, par exemple d'après FR-A-1 341 226 et permet d'ajouter au produit du récipient un additif tel qu'un colorant ou un parfum, au moment de l'utilisation ; ceci permet d'éviter un contact prolongé au stockage entre l'additif et le produit et une altération éventuelle.A dispensing head of this kind is known, for example from FR-A-1 341 226 and makes it possible to add to the product of the container an additive such as a dye or a perfume, at the time of use; this avoids prolonged storage contact between the additive and the product and possible deterioration.

Le stockage de la tête de distribution pose toutefois des problèmes en ce qui concerne la conservation de l'additif et sa protection contre l'atmosphère ambiante. En outre, il est souhaitable que le montage de la tête de distribution sur le récipient s'effectue simplement et rapidement.The storage of the dispensing head however poses problems with regard to the conservation of the additive and its protection against the ambient atmosphere. In addition, it is desirable that the mounting of the dispensing head on the container is carried out simply and quickly.

L'invention a pour but, surtout, de fournir une tête de distribution du genre défini précédemment dans laquelle, lors du stockage, la chambre contenant l'additif soit bien isolée de l'atmosphère, ladite tête devant permettre un montage rapide sur le récipient, avec une mise en service simple.The object of the invention is, above all, to provide a dispensing head of the type defined above in which, during storage, the chamber containing the additive is well isolated from the atmosphere, said head having to allow rapid mounting on the container. , with simple commissioning.

Selon l'invention, une tête de distributiori pour un additif destinée à être montée sur la sortie d'un récipient contenant un produit, délivré généralement sous forme d'un aérosol-mousse ou de pâte, comporte un canal central pour le passage du produit en provenance du récipient et une chambre entourant le canal central et contenant l'additif, des moyens de sortie de l'additif étant prévus vers l'extrêmité de la chambre opposée au récipient, tandis que des moyens d'entrée du produit dans ladite chambre sont prévus pour permettre à ce produit de chasser l'additif hors de la chambre, afin de former des cordons d'additif dans le produit délivré à la sortie du canal central, un élément coulissant par rapport au canal central étant prévu pour fermer le passage entre le récipient et la chambre, le canal central de la tête comprenant une section solidaire de l'extrémité de la. tête éloignée du récipient et formée par une paroi cylindrique qui s'arrête à une distance, considérée le long de la surface cylindrique fictive prolongeant la paroi vers le bas, de la paroi de fond de la chambre, et est caractérisée par le fait que l'élément est une tubulure montée coulissante relativement à cette section de canal central et à un manchon fixé sur le fond de la chambre, ladite tubulure comportant vers son extrémité destinée à être tournée vers le récipient des ouvertures dans sa paroi, l'ensemble étant tel que dans une position de stockage, la tubulure ne coopère qu'un minimum avec ladite section de canal central, cette coopération minimum étant suffisante pour assurer une fermeture étanche, et les ouvertures de ladite tubulure ne communiquent pas avec la chambre annulaire qui se trouve ainsi isolée, tandis que dans une seconde position de travail, la tubulure a été déplacée par coulissement relativement à la section de canal central, et lesdites ouvertures établissent une communication entre ce canal central et la chambre annulaire.According to the invention, a dispensing head for an additive intended to be mounted on the outlet of a container containing a product, generally delivered in the form of an aerosol-foam or paste, comprises a central channel for the passage of the product. coming from the container and a chamber surrounding the central channel and containing the additive, means for removing the additive being provided towards the end of the chamber opposite the container, while means for entering the product into said chamber are provided to allow this product to drive the additive out of the chamber, in order to form beads of additive in the product delivered at the outlet of the central channel, a sliding element relative to the central channel being provided to close the passage between the container and the chamber, the central channel of the head comprising a section integral with the end of the. head remote from the container and formed by a cylindrical wall which stops at a distance, considered along the imaginary cylindrical surface extending the wall downward, from the bottom wall of the chamber, and is characterized in that the the element is a tube mounted to slide relative to this central channel section and to a sleeve fixed to the bottom of the chamber, said tube having towards its end intended to be turned towards the container with openings in its wall, the assembly being such that in a storage position, the tubing cooperates only a minimum with said central channel section, this minimum cooperation being sufficient to ensure a tight closure, and the openings of said tubing do not communicate with the annular chamber which is thus isolated, while in a second working position, the tubing has been moved by sliding relative to the central channel section, and said openings establish communication between this central channel and the annular chamber.

De préférence, la tubulure est montée coulissante à l'intérieur de ladite section de canal central.Preferably, the tubing is slidably mounted inside said central channel section.

Avantageusement, la tête de distribution comporte, du côté du récipient, une paroi extérieure formant manchon cylindrique dont la surface intérieure est propre à fermer les ouvertures de la susdite tubulure lorsque celle-ci est en position de stockage ; le manchon cylindrique est prolongé, du côté opposé au récipient, par une partie tronconique évasée qui se raccorde à une paroi cylindrique extérieure de la tête de distribution.Advantageously, the dispensing head comprises, on the container side, an outer wall forming a cylindrical sleeve, the inner surface of which is capable of closing the openings of the above-mentioned tubing when the latter is in the storage position; the cylindrical sleeve is extended, on the side opposite to the container, by a part tapered flare that connects to an outer cylindrical wall of the dispensing head.

Les ouvertures prévues dans la tubulure peuvent être constituées par des échancrures longitudinales qui débouchent sur l'extrémité de ladite tubulure destinée à se trouver vers le récipient.The openings provided in the tubing can be formed by longitudinal notches which open onto the end of said tubing intended to be located towards the container.

Généralement, la tête de distribution est destinée à être montée sur un ajutage de sortie d'un récipient, de forme cylindrique; le manchon de la tête de distribution est propre à s'engager à frottement doux sur ledit ajutage, et la tubulure coulissante a un diamètre extérieur sensiblement égal à celui de l'ajutage de sorte que la mise en place de la tête de distribution sur le récipient provoque le coulissement de la tubulure sous l'action de la poussée dudit ajutage.Generally, the dispensing head is intended to be mounted on an outlet nozzle of a container, of cylindrical shape; the sleeve of the dispensing head is suitable for engaging with gentle friction on said nozzle, and the sliding tube has an outside diameter substantially equal to that of the nozzle so that the placement of the dispensing head on the container causes the tubing to slide under the action of the thrust of said nozzle.

Avantageusement, l'extrémité du canal central s'ouvrant vers l'extérieur est prolongée par une partie tronconique s'évasant du côté opposé au récipient, et permettant notamment au produit du récipient de s'expanser.Advantageously, the end of the central channel opening towards the outside is extended by a frustoconical part flaring on the side opposite to the container, and in particular allowing the product of the container to expand.

Cette partie tronconique est de préférence bordée, à son extrémité extérieure, par une couronne périphérique, fermant la chambre annulaire, couronne dans laquelle sont prévus des trous de passage constituant les moyens de sortie pour l'additif.This frustoconical part is preferably bordered, at its outer end, by a peripheral ring, closing the annular chamber, ring in which are provided through holes constituting the outlet means for the additive.

Des cloisons radiales, notamment régulièrement espacées angulairement, sont avantageusement prévues dans la chambre qui entoure le canal central.Radial partitions, in particular regularly angularly spaced apart, are advantageously provided in the chamber which surrounds the central channel.

Le rapport du diamètre du canal central à la somme des diamètres des trous de sortie de l'additif est choisi selon la longueur souhaitée pour les cordons formés dans le produit distribué et selon la viscosité de l'additif.The ratio of the diameter of the central channel to the sum of the diameters of the additive outlet holes is chosen according to the desired length for the beads formed in the product dispensed and according to the viscosity of the additive.

Pour le stockage, la tête de distribution est fermée, à son extrémité éloignée de celle destinée à être montée sur le récipient, par un opercule, en particulier thermoscellé. L'autre extrémité de la chambre de la tête de distribution est fermée par la tubulure en position de stockage; le cas échéant, cette fermeture peut être complétée par un autre opercule thermoscellé sur l'extrémité correspondante de la tête de distribution.For storage, the dispensing head is closed, at its end remote from that intended to be mounted on the container, by a cover, in particular heat-sealed. The other end of the dispensing head chamber is closed by the tubing in the storage position; if necessary, this closure may be supplemented by another heat-sealed cap on the corresponding end of the dispensing head.

L'invention concerne également un récipient contenant un produit, délivré généralement sous forme d'aérosol-mousse ou de pâte, caractérisé par le fait qu'il est équipé d'une tête de distribution telle que définie précédemment.The invention also relates to a container containing a product, generally delivered in the form of aerosol-foam or paste, characterized in that it is equipped with a dispensing 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'un mode de réalisation particulier décrit avec référence aux dessins ci-annexés, mais qui n'est nullement limitatif.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 a particular embodiment described with reference to the attached drawings, but which is in no way limiting.

La figure 1, de ces dessins, montre en perspective avec parties coupées, une tête de distribution conforme à l'invention en position de stockage, avant son montage sur le récipient.Figure 1 of these drawings shows in perspective with cut parts, a dispensing head according to the invention in the storage position, before mounting on the container.

La figure 2 montre, semblablement à la figure 1, la tête de distribution montée sur le récipient.Figure 2 shows, similarly to Figure 1, the dispensing head mounted on the container.

La figure 3 est une coupe selon la ligne III-III de la figure 4.FIG. 3 is a section along line III-III of FIG. 4.

La figure 4, enfin, est une coupe suivant la ligne IV-IV de la figure 3.FIG. 4, finally, is a section along line IV-IV of FIG. 3.

En se reportant à la figure 1 des dessins, on peut voir une tête de distribution 1 pour un additif 2, cette tête étant destinée à être montée sur la sortie 3 d'un récipient 4 contenant un produit. Dans l'exemple considéré, le récipient 4 est un récipient pressurisé propre à délivrer, lorsque l'utilisateur exerce une pression sur une soupape, un aérosol-mousse à travers la sortie 3. Il est clair cependant que la tête de distribution 1 pourrait être montée sur la sortie d'un récipient d'un autre type, par exemple sur la sortie d'un tube à paroi déformable, contenant une pâte, en particulier une pâte dentifrice.Referring to Figure 1 of the drawings, one can see a dispensing head 1 for an additive 2, this head being intended to be mounted on the outlet 3 of a container 4 containing a product. In the example considered, the container 4 is a pressurized container capable of delivering, when the user exerts pressure on a valve, an aerosol-foam through the outlet 3. It is clear however that the dispensing head 1 could be mounted on the outlet of a container of another type, for example on the outlet of a tube with a deformable wall, containing a paste, in particular a toothpaste.

La tête 1 comporte un canal central 5 pour le passage du produit en provenance du récipient 4 et une chambre annulaire 6 entourant le canal central 5 et la paroi cylindrique 7 limitant ce canal. La chambre 6 contient l'additif 2 et est limitée, vers l'extérieur, par une paroi cylindrique 8 coaxiale à la paroi 7. Des cloisons radiales 9, entre la paroi 8 et la paroi 7, sont régulièrement espacées dans la chambre annulaire 6 de manière à la compartimenter dans le sens périphérique. La paroi extérieure cylindrique 8 est engagée avec serrage et est fixée, notamment par soudure, dans une collerette 10̸ qui est raccordée à un manchon cylindrique 11 coaxial mais de plus petit diamètre, par une partie tronconique 12 dont le diamètre diminue progressivement de la collerette 10̸ vers le manchon 11. Cette partie tronconique 12 constitue, en quelque sorte, le fond de la chambre annulaire 6. Les cloisons 9 s'étendent jusqu'à la partie 12 dont elles sont solidaires (voir figure 4) ; l'extrémité inférieure de chaque cloison 9 est inclinée de manière à venir épouser la surface de la partie 12.The head 1 comprises a central channel 5 for the passage of the product coming from the container 4 and an annular chamber 6 surrounding the central channel 5 and the cylindrical wall 7 limiting this channel. Chamber 6 contains the additive 2 and is limited towards the outside by a cylindrical wall 8 coaxial with the wall 7. Radial partitions 9, between the wall 8 and the wall 7, are regularly spaced in the annular chamber 6 so as to compartmentalize it in the peripheral direction. The cylindrical outer wall 8 is engaged with clamping and is fixed, in particular by welding, in a flange 10̸ which is connected to a cylindrical sleeve 11 coaxial but of smaller diameter, by a frustoconical part 12 whose diameter gradually decreases from the flange 10̸ towards the sleeve 11. This frustoconical part 12 constitutes, as it were, the bottom of the annular chamber 6. The partitions 9 extend up to the part 12 of which they are integral (see FIG. 4); the lower end of each partition 9 is inclined so as to match the surface of the part 12.

La paroi cylindrique 7 forme une section solidaire de l'extrémité 13 de la tête éloignée du récipient 4. La paroi 7 s'arrête à une certaine distance d de la paroi de fond 12, cette distance d étant considérée le long de la surface cylindrique fictive prolongeant la paroi 7 vers le bas.The cylindrical wall 7 forms a section integral with the end 13 of the head remote from the container 4. The wall 7 stops at a certain distance d from the bottom wall 12, this distance d being considered along the cylindrical surface fictitious extending the wall 7 downwards.

Le diamètre interne du manchon 11 est égal à celui de la paroi 7.The internal diameter of the sleeve 11 is equal to that of the wall 7.

Une tubulure 14 cylindrique est montée coulissante relativement à la section du canal central 5 formé par la paroi 7, à l'intérieur de ce canal.A cylindrical tube 14 is slidably mounted relative to the section of the central channel 5 formed by the wall 7, inside this channel.

La tubulure 14 comporte, vers son extrémité destinée à être tournée vers le récipient 4, des ouvertures 15 dans sa paroi, régulièrement réparties sur la périphérie. Ces ouvertures 15 sont avantageusement constituées par des échancrures longitudinales qui débouchent sur l'extrémité de la tubulure 14 tournée vers le récipient 4.The tubing 14 has, towards its end intended to be turned towards the container 4, openings 15 in its wall, regularly distributed on the outskirts. These openings 15 are advantageously constituted by longitudinal notches which open onto the end of the tube 14 facing the container 4.

L'ensemble est prévu pour que, dans une position de stockage, représentée sur la figure 1, la tubulure 14 ne coopère qu'un minimum avec la paroi 7, suffisamment cependant pour que l'engagement de l'extrémité haute de la tubulure 14 dans la paroi 7 assure une fermeture étanche, tandis que les ouvertures 15 ne communiquent pas avec la chambre annulaire 6 et sont fermées par la surface interne du manchon 11. La chambre annulaire 6 se trouve ainsi isolée du canal central 5, sur l'espace correspondant à la distance d, par la paroi de la tubulure 14.The assembly is designed so that, in a storage position, shown in FIG. 1, the tubing 14 cooperates only a minimum with the wall 7, enough however for the engagement of the upper end of the tubing 14 in the wall 7 provides a sealed closure, while the openings 15 do not communicate with the annular chamber 6 and are closed by the internal surface of the sleeve 11. The annular chamber 6 is thus isolated from the central channel 5, on the space corresponding to the distance d , through the wall of the pipe 14.

Dans une position de travail, représentée sur la figure 2, la tubulure 14 a été enfoncée axialement dans la paroi 7 d'une distance suffisante pour qu'une communication entre la chambre 2 et le canal central 5 soit établie par les ouvertures 15.In a working position, shown in FIG. 2, the tubing 14 has been inserted axially into the wall 7 by a sufficient distance so that communication between the chamber 2 and the central channel 5 is established by the openings 15.

La sortie 3 du récipient est munie d'un ajutage de forme cylindrique dont le diamètre est sensiblement égal à celui de la tubulure 14 ; le manchon 11 est propre à s'engager à frottement doux sur ledit ajutage cylindrique de la sortie 3 de sorte que la mise en place de la tête 1 sur le récipient 4 provoque le coulissement de la tubulure 14 à l'intérieur de la paroi cylindrique 7 sous la poussée dudit ajutage de sortie 3.The outlet 3 of the container is provided with a nozzle of cylindrical shape whose diameter is substantially equal to that of the tube 14; the sleeve 11 is suitable for engaging with gentle friction on said cylindrical nozzle of the outlet 3 so that the positioning of the head 1 on the container 4 causes the tubing 14 to slide inside the cylindrical wall 7 under the thrust of said outlet nozzle 3.

L'extrémité du canal central 5 s'ouvrant vers l'extérieur est prolongée par une partie tronconique 16 s'évasant du côté opposé au récipient 4 et permettant notamment à la mousse, provenant du récipient, de s'expanser avant de prendre en charge l'additif, par exemple un colorant, ce qui évite la destruction des striures formées par l'additif.The end of the central channel 5 opening towards the outside is extended by a frustoconical part 16 flaring on the side opposite to the container 4 and allowing in particular the foam, coming from the container, to expand before taking charge the additive, for example a dye, which prevents destruction of the streaks formed by the additive.

Cette partie tronconique 16 est bordée, à son extrémité extérieure, par une couronne périphérique 17 fermant la chambre annulaire 2. Des trous de passage 18, régulièrement espacés, sont prévus dans cette couronne 17 et constituent les moyens de sortie pour l'additif.This frustoconical part 16 is bordered, at its outer end, by a peripheral crown 17 closing the annular chamber 2. Passage holes 18, regularly spaced, are provided in this crown 17 and constitute the outlet means for the additive.

Le rapport du diamètre du canal central 5 à la somme des diamètres des trous de sortie 18 de l'additif est choisi selon la longueur souhaitée pour les cordons ou striures formés dans le produit distribué, et selon la viscosité de l'additif.The ratio of the diameter of the central channel 5 to the sum of the diameters of the outlet holes 18 of the additive is chosen according to the desired length for the beads or ridges formed in the dispensed product, and according to the viscosity of the additive.

Pour le stockage, la tête de distribution est fermée par un opercule thermoscellé sur son extrémité 13, et, d'autre part, par la tubulure 14 qui occupe la position de la figure 1. Eventuellement, on pourrait prévoir un deuxième opercule thermoscellé sur l'extrémité du manchon 11.For storage, the dispensing head is closed by a heat-sealed cap on its end 13, and, on the other hand, by the tube 14 which occupies the position of FIG. 1. Optionally, a second heat-sealed lid could be provided on the end of the sleeve 11.

L'utilisation d'une tête 1 de distribution conforme à l'invention résulte immédiatement des explications qui précèdent.The use of a dispensing head 1 in accordance with the invention immediately results from the foregoing explanations.

Après avoir retiré l'opercule recouvrant l'extrémité 13, et, le cas échéant, l'opercule recouvrant la partie inférieure du manchon 11, on engage ce manchon 11 sur l'ajutage de sortie 3. Ceci provoque l'enfoncement de la tubulure 14 dans le canal 5 comme représenté sur la figure 2. La chambre annulaire 6 se trouve alors mise en communication par les ouvertures 15, avec le canal central 5.After removing the cover covering the end 13, and, if necessary, the cover covering the lower part of the sleeve 11, this sleeve 11 is engaged on the outlet nozzle 3. This causes the tubing to sink. 14 in the channel 5 as shown in FIG. 2. The annular chamber 6 is then placed in communication through the openings 15, with the central channel 5.

Lorsque l'on commande la sortie du produit contenu dans le récipient 4, une partie de ce produit, sous forme de mousse dans l'exemple considéré, pénètre dans la chambre 6 et chasse l'additif vers l'extérieur à travers les trous 18. L'autre fraction de la mousse sort directement par le canal central 5.When the output of the product contained in the container 4 is controlled, a portion of this product, in the form of foam in the example considered, enters the chamber 6 and drives the additive out through the holes 18 The other fraction of the foam leaves directly through the central channel 5.

L'additif chassé à travers les trous 18 va former des stries sur le boudin de mousse qui sort par le canal central 5.The additive chased through the holes 18 will form streaks on the foam rod which comes out through the central channel 5.

Le rapport entre la somme des surfaces des ouvertures 15 et la surface transversale de la tubulure 14 définit la proportion de mousse qui va pénétrer dans la chambre 6, et donc la longueur des stries sur le boudin de mousse qui sort du canal 5.The ratio between the sum of the surfaces of the openings 15 and the transverse surface of the tubing 14 defines the proportion of foam which will enter the chamber 6, and therefore the length of the streaks on the strand of foam which leaves the channel 5.

La tête de distribution conforme à l'invention convient particulièrement pour ajouter un produit additionnel 2 à un produit principal sortant du canal 5 sous forme de mousse. Toutefois, cette tête pourrait également convenir pour ajouter un produit additionnel à un produit principal sortant sous forme de pâte.The dispensing head according to the invention is particularly suitable for adding an additional product 2 to a main product leaving the channel 5 in the form of foam. However, this head could also be suitable for adding an additional product to a main product leaving in the form of a paste.

Claims (11)

  1. A dispensing head for an additive (2) intended to be mounted on the outlet (3) of a container (4) containing a product generally dispensed in the form of an aerosol foam or paste, the said head (1) comprising a central duct (5) for the passing of the product coming from the container (4) and a chamber (6) surrounding the central duct and containing the additive (2), means being provided for the emergence of the additive towards the end (13) of the chamber on the opposite side to the container, whilst means are provided for the intake of the product into the said chamber (6) to allow this product to eject the additive (2) out of the chamber so as to form strands of additive in the product delivered at the outlet of the central duct, an element (14) sliding relative to the central duct being provided to close the passage between the container and the chamber, the central duct (5) of the head comprising a section joined to the end (13) of the head remote from the container and formed by a cylindrical wall (7) which stops at a distance (d), considered along the fictitious cylindrical surface extending the wall (7) downwards, from the bottom wall (12) of the chamber (6), characterized in that the element (14) is a tube slidably mounted relative to this section (7) of the central duct (5) and to a sleeve (11) fixed to the bottom of the chamber, the said tube (14) comprising towards its end intended to be turned towards the container, openings (15) in its wall, the whole being such that in a storage position, the tube (14) only cooperates to a minimum extent with the said section (7) of the central duct (5), this minimum cooperation being sufficient to ensure a leakproof seal, and the openings (15) of the said tube do not communicate with the annular chamber (6) which is thus isolated, whilst in a second operative position, the tube (14) has been displaced by sliding relative to the section (7) of the central duct, and the said openings (15) establish a communication between this central duct (5) and the annular chamber (6).
  2. A dispensing head according to claim 1, characterized in that the tube (14) is slidably mounted inside the said section (7) of the central duct.
  3. A dispensing head according to claim 1 or 2, characterized in that it includes on the side of the container an external wall forming a cylindrical sleeve (11) whose internal surface is capable of closing the openings (15) of the above mentioned tube (14) when the latter is in the storage position.
  4. A dispensing head according to claim 3, characterized in that the cylindrical sleeve (11) is extended on the opposite side to the container by a flaring frustoconical portion (12) which is joined to an external cylindrical wall (10) of the dispensing head.
  5. A dispensing head according to any one of the preceding claims, characterized in that the openings (15) provided in the tube (14) are constituted by longitudinal slots which open in the end of the said tube (14) intended to be located towards the container.
  6. A dispensing head according to any one of the preceding claims, intended to be mounted on a cylindrical-shaped outlet nozzle of a container, characterized in that the sleeve (11) of the dispensing head is capable of engaging with slight friction on the said nozzle, and the sliding tube (14) has an external diameter substantially equal to that of the outlet nozzle, so that the positioning of the dispensing head (1) on the container (4) produces the sliding of the tube (14) under the thrust action of the said nozzle.
  7. A dispensing head according to any one of the preceding claims, characterized in that the end of the central duct (5) opening towards the outside is extended by a frustoconical portion (16) flaring on the opposite side to the container.
  8. A dispensing head according to claim 7, characterized in that the frustoconical portion (16) is edged at its outer and by a peripheral ring (13), closing the annular chamber (6), in which ring passage holes (18) are provided which constitute the outlet means for the additive (2).
  9. A dispensing head according to any one of the preceding claims, characterized in that radial partitions (9) are provided in the chamber (6) which surrounds the central duct (5).
  10. A dispensing head according to any one of the preceding claims, characterized in that for storage, its end (13) remote from that intended to be mounted on the container is closed by a cover, in particular, a heat-sealed cover, the other end of the chamber (2) being closed by the tube (14) in the storage position, it being possible for this closure to be completed, if required, by another cover heat-sealed on the corresponding end of the dispensing head.
  11. A container containing a product delivered generally in the form of an aerosol foam or paste, characterized in that it is fitted with a dispensing head according to any one of the preceding claims.
EP89403005A 1988-11-09 1989-10-31 Dispensing head for an additive, to be mounted on a container, and container provided with such a dispensing head Expired - Lifetime EP0368724B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814644 1988-11-09
FR8814644A FR2638718B1 (en) 1988-11-09 1988-11-09 DISPENSING HEAD FOR AN ADDITIVE, INTENDED TO BE MOUNTED ON A CONTAINER, AND CONTAINER PROVIDED WITH SUCH A DISPENSING HEAD

Publications (2)

Publication Number Publication Date
EP0368724A1 EP0368724A1 (en) 1990-05-16
EP0368724B1 true EP0368724B1 (en) 1992-12-30

Family

ID=9371730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403005A Expired - Lifetime EP0368724B1 (en) 1988-11-09 1989-10-31 Dispensing head for an additive, to be mounted on a container, and container provided with such a dispensing head

Country Status (7)

Country Link
US (1) US5007563A (en)
EP (1) EP0368724B1 (en)
JP (1) JPH06212B2 (en)
CA (1) CA2002168A1 (en)
DE (1) DE68904167T2 (en)
ES (1) ES2036831T3 (en)
FR (1) FR2638718B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102008035479A1 (en) 2008-07-30 2010-02-11 Henkel Ag & Co. Kgaa Dispenser for storing and delivering multi-component, paste-like composition including cosmetic or medical product composition for example toothpaste, comprises container for base component, and additive chamber

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DE19710885A1 (en) * 1997-03-15 1998-10-08 Kranz Reinhard Otto Dipl Ing D Soap dispenser holder
CA2283809C (en) * 1997-03-27 2006-10-31 Unilever Plc Device for storing a liquid, particularly a dilutable concentrate, co-operable with a spray dispenser
EP0867381A1 (en) * 1997-03-27 1998-09-30 Unilever N.V. Device for storing a liquid, particularly a dilutable concentrate, co-operable with a spray dispenser
FR2772289B1 (en) * 1997-12-17 2000-01-21 Monique Garot Mathieu METHOD FOR COATING ANY SUPPORT WITH DYEING MATERIAL AS WELL AS DEVICE FOR CARRYING OUT THIS METHOD
US7749247B2 (en) * 2005-08-04 2010-07-06 St. Jude Medical Puerto Rico, Llc Tissue puncture closure device with coiled automatic tamping system
US8336737B2 (en) 2006-07-11 2012-12-25 Rexam Airspray N.V. Foam dispenser
US20240109088A1 (en) * 2022-09-09 2024-04-04 Clayton Corporation Dispensing tip assembly including foodstuff additive dispenser for pressurized foodstuff container

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US2914220A (en) * 1957-04-19 1959-11-24 John J Spero Striping dispenser
US3002658A (en) * 1959-07-06 1961-10-03 Sigmund T Sajda Nozzle for applying colors
US3042263A (en) * 1959-11-13 1962-07-03 Sr John Gallo Striped paste dispenser
FR1341226A (en) * 1962-12-13 1963-10-25 Procter & Gamble Dispensing tip for mixing an additive with a base product when dispensing the latter
US3135428A (en) * 1963-02-18 1964-06-02 Gallo John Dispensing device
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008035479A1 (en) 2008-07-30 2010-02-11 Henkel Ag & Co. Kgaa Dispenser for storing and delivering multi-component, paste-like composition including cosmetic or medical product composition for example toothpaste, comprises container for base component, and additive chamber
DE102008035479B4 (en) * 2008-07-30 2015-05-07 Henkel Ag & Co. Kgaa Dispenser for storing and dispensing a multi-component, pasty composition

Also Published As

Publication number Publication date
JPH02174957A (en) 1990-07-06
DE68904167T2 (en) 1993-05-27
US5007563A (en) 1991-04-16
EP0368724A1 (en) 1990-05-16
CA2002168A1 (en) 1990-05-09
ES2036831T3 (en) 1993-06-01
DE68904167D1 (en) 1993-02-11
JPH06212B2 (en) 1994-01-05
FR2638718A1 (en) 1990-05-11
FR2638718B1 (en) 1991-02-15

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