EP1638852A1 - Dosing device for a flexible recipient comprising a reclosable stopper - Google Patents

Dosing device for a flexible recipient comprising a reclosable stopper

Info

Publication number
EP1638852A1
EP1638852A1 EP04767422A EP04767422A EP1638852A1 EP 1638852 A1 EP1638852 A1 EP 1638852A1 EP 04767422 A EP04767422 A EP 04767422A EP 04767422 A EP04767422 A EP 04767422A EP 1638852 A1 EP1638852 A1 EP 1638852A1
Authority
EP
European Patent Office
Prior art keywords
container
opening
head
membrane
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04767422A
Other languages
German (de)
French (fr)
Inventor
Christian Guillot
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.)
Janvier SA
Original Assignee
Janvier 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 Janvier SA filed Critical Janvier SA
Publication of EP1638852A1 publication Critical patent/EP1638852A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D35/40—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 metering discharge
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2075—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is raised by the pressure of the contents and thereby opening the valve

Definitions

  • the present invention relates to a metering device intended for a flexible container provided with a resealable cap for products in a pasty state.
  • a flexible container is often used to contain a cosmetic product in a pasty state such as sunscreen for example.
  • this product must be delivered in specific doses.
  • the pressure exerted on the walls of the tube by the user does not guarantee that a constant dose is obtained, this pressure being variable in duration and in intensity. Dosing devices must therefore be used.
  • the constraints to be observed for these metering devices intended for everyday use are: - the simplicity of use, - the simplicity of the device making it possible to guarantee a low economic cost compatible with mass production, - a minimal bulk, - a large ease of transport.
  • dosing does not require great precision.
  • Various existing dosing solutions have been described and used, based on the use of pumps. However, these solutions are unsuitable for use for tubes of sunscreen to be carried in a pocket.
  • pumps are relatively complex devices and therefore of high cost.
  • Piston devices have also been described, comprising a metering chamber fixed near the opening of the container, in which slides a piston subjected to the action of the pressure of the liquid between two extreme positions, the piston being able to be provided with spring type return means. The movement of the piston defines filling positions of the metering chamber and delivery of the metered amount.
  • the devices present a mode of operation which can be complex and impose a position of use.
  • the devices used include a large number of parts, incompatible with the use in a distribution of large distribution.
  • devices using a membrane have been described, comprising a membrane associated with a rod carrying a head allowing to close the opening of a container and to define positions for filling and delivering the dose of liquid.
  • the documents GB 1 054 307 and US 3 134514 describe such devices.
  • the dosage is a precision dosage obtained by filling a cavity formed in the body of the rod.
  • the openings present on the membrane and allowing the liquid to pass through it are closed by a fold of the membrane under the effect of the pressure during the delivery phase.
  • the object of the invention relates to a metering device intended for a flexible container provided with a resealable cap, for products in a pasty state, characterized in that it comprises: - a cylindrical part integral with the sealing lip or neck of the container, - a membrane fixed to the cylindrical part in which openings are made, - a cylindrical body disposed in the center of the membrane of cross section greater than the opening of the container, - a head provided the end of the cylindrical body whose section increases from the cylindrical body, the maximum section of the head being of diameter substantially equal to the opening of the container, and in that the body and the head integral with the membrane can move in the axis of the container opening, when pressure is exerted on the walls of the container and applied to the membrane, between: a first shutter position at rest, the head closing the opening of the container by its part of maximum section when no pressure is exerted, and a second stopper shutter position, the cylindrical body having a diameter greater than the opening resting on the edge thereof, thereby closing the
  • the described configuration of the device makes it possible to obtain the desired dosage from a simple geometry.
  • a direct passage is kept between the body of the container and the outside, so as to guarantee sufficient pressure to deliver the product to the outside of the container.
  • the elastic nature of the membrane makes it possible to bring the body and the head into the rest position when the pressure is removed on the walls of the container.
  • the use of an elastic membrane avoids the use of springs or other return means. This approach allows the device to be used in all positions, with an opening directed upwards or downwards.
  • the membrane has a generally annular shape with the same axis as the opening, delimited on its outer edge by the cylindrical part and on its inner edge by the cylindrical body.
  • the membrane has a generally frustoconical shape in the rest position, the top of which is oriented towards the interior of the container.
  • the annular and frustoconical shape of the membrane allows, by its cantilever orientation, to accentuate the elastic pressure tending to bring the device back to its rest position.
  • the membrane comprises a cylindrical portion having corrugations in the form of a bellows which can exert an elastic pressure to bring the body and the head into the rest position when the pressure is removed on the walls of the container.
  • the device is made in one piece of elastomer. The structure of the device allows it to be made in one piece, this piece being made of elastomer thus ensuring the elasticity of the membrane.
  • the cylindrical part is fixed by clamping on the sealing lip or the neck of the container.
  • the device is incorporated in a ring provided with a thread, to be screwed onto the sealing lip or onto the neck of the container.
  • the device is produced by overmolding on the sealing lip or the neck of the container.
  • Figure 4 is a cross-sectional view according to a second embodiment.
  • Figures 1, 2, 3 show a metering device 2 according to the invention, fixed on a flexible container 3 provided with a resealable opening 4 for cosmetic products.
  • the body 5 of the flexible container 3 can be produced by extrusion in polyethylene for example, then a head 6 made of polypropylene by molding is welded to this body 5.
  • the head 6 has a neck 7, on the external wall of which a thread is formed 8, and a shoulder 9.
  • the reclosable cap 4 is composed of a base 10 and a cap 12.
  • the base 10 which comprises: - an outer covering skirt 13, of the same axis that the neck 7, of diameter substantially equal to the diameter of the shoulder 9 of the head 6.
  • - fixing means constituted by a fixing skirt 14 of the same axis as the outer skirt 13 but of smaller diameter having an internal thread 15 cooperating with an external thread 8 formed on the neck 7 of the container 3 for screwing the base 10 on the head 6.
  • - sealing means constituted by an inner sealing lip 16 of the same axis as the two skirts 13 and 14 also provided on the base 10, this lip 16 having an outside diameter adjusted to that of the inside diameter of the neck 7 of the container 3, so as to seal it when the base 10 is screwed onto the head 6.
  • - means for locking the cap constituted by a vertical cylindrical wall 17 of the same axis as the skirts 13 and 14 directed towards the outside of the container and comprising an internal return 18.
  • the base 10 is connected by a hinge constituted by a veil 22n 12 of generally circular shape.
  • This cap 12 comprises:
  • - Locking means constituted by a cylindrical wall 24 of axis perpendicular to the cap 12, and of radius adjusted to the cylindrical wall 17 intended to be blocked by the return 18 present thereon when the plug 4 is closed.
  • the device 2 which is the subject of the invention comprises, in a first embodiment: - a cylindrical part 26 fixed on the sealing lip 16, with an outside diameter adjusted to the inside diameter of the sealing lip 16 to ensure its maintenance in position, - a membrane 27 fixed on the cylindrical part 26 in which are formed openings 28 allowing the product to pass from the body of the container 5 to the opening 20, this membrane having a generally frustoconical shape, the top being oriented towards the inside the container 3, - a cylindrical body 29 disposed at the center of the membrane 27 of section greater than the opening 20 of the container, - a head 30 formed at the end of the cylindrical body 29, the section of which increases from the body cylindrical 29, the maximum section of the head 30 being of diameter substantially equal to the opening 20 of the container.
  • the device 2 is made in a single piece of elastomer, which guarantees great simplicity of assembly and low economic cost.
  • Figure 1 shows the device 2 in the rest position. The opening 20 is closed off by the part of maximum section of the head 30. The cap 12 is closed, the finger 25 sealing the opening 20. If the cap is open, the head 30 remains in the closed position of the opening 20 in the absence of pressure exerted on the walls of the container 3.
  • Figure 2 shows the device 2 during the delivery of a dose of product. When pressure is exerted on the walls of the container 3, it is applied to the membrane 27.
  • FIG. 3 shows the device 2 in the stop position. Under the effect of the pressure, the cylindrical body 29 and the head 30 continue their course until the cylindrical body 29 of diameter greater than the opening 20 come and lean on the edge of it. In this position, the opening 20 is closed.
  • FIG. 4 represents a second embodiment of the device 2, in which the membrane 27 comprises a cylindrical portion 33 having corrugations in the form of bellows 34 which can exert an elastic pressure to bring the body 29 and the head 30 into the rest position when the pressure is removed on the walls of the container 3.
  • the invention is not limited to the embodiment described, it embraces it on the contrary all the variants.
  • the method of fixing the metering device 2 to the container 3 can take various forms.

Landscapes

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

Abstract

The invention relates to a dosing device (2) for a flexible recipient (3) comprising a reclosable stopper (4) for cosmetic products. Said device is characterised in that it comprises a cylindrical part (26) fixed to the sealing lip (16) or the neck (7) of the recipient (3), a membrane (27) fixed to the cylindrical part (26) provided with openings (28), a cylindrical body (29) arranged at the centre of the membrane (27), the cross-section thereof reaching higher than the opening (20) of the recipient, and a head (30) which is arranged at the end of the cylindrical body (29), the cross-section of said head increasing from the cylindrical body (29). The maximum diameter of the cross-section of the head (30) is essentially equal to the opening (20) of the recipient.

Description

Dispositif doseur pour récipient souple muni d'un bouchon refermable La présente invention concerne un dispositif doseur destiné à un récipient souple muni d'un bouchon refermable pour produits à l'état pâteux. Un récipient souple est souvent utilisé pour contenir un produit cosmétique se trouvant à l'état pâteux comme une crème solaire par exemple. Ce produit, pour être efficace, doit être délivré en doses déterminées. Toutefois, la pression exercée sur les parois du tube par l'utilisateur ne garantit pas l'obtention d'une dose constante, cette pression étant variable en durée et en intensité. Des dispositifs de dosage doivent donc être utilisés. Les contraintes à respecter pour ces dispositifs de dosage destinés à une utilisation courante sont : - la simplicité d'utilisation, - la simplicité du dispositif permettant de garantir un coût économique faible compatible avec une production de masse, - un encombrement minimal, - une grande facilité de transport. Le dosage ne nécessite toutefois pas une grande précision. Diverses solutions existantes de dosage ont été décrite et utilisées, basées sur l'utilisation de pompes. Toutefois, ces solutions sont peu adaptées à l'utilisation pour des tubes de crème solaires devant être transportés dans une poche. De plus, les pompes sont des dispositifs relativement complexes et donc d'un coût élevé. Des dispositifs à pistons ont également été décrits, comportant une chambre de dosage fixée à proximité de l'ouverture du récipient, dans laquelle coulisse un piston soumis à l'action de la pression du liquide entre deux positions extrêmes, le piston pouvant être muni de moyens de rappel de type ressort. Le mouvement du piston définit des positions de remplissage de la chambre de dosage et de délivrance de la quantité dosée. Les documents DE 4 310 019, EP 0 560 839, EP 1 164 362, décrivent de tels dispositifs. Ces dispositifs présente un mode de fonctionnement pouvant être complexe et imposer une position d'utilisation. D'autre part, les dispositifs utilisés comportent un nombre de pièces important, incompatible avec l'utilisation dans une diffusion de grande distribution. Enfin, des dispositifs utilisant une membrane ont été décrits, comportant une membrane associée à une tige portant une tête permettant d'obturer l'ouverture d'un récipient et de définir des positions de remplissage et de délivrance de la dose de liquide. Les documents GB 1 054 307 et US 3 134514 décrivent de tels dispositifs. Dans le premier document, le dosage est un dosage de précision obtenu par le remplissage d'une cavité ménagée dans le corps de la tige. Dans le second document, les ouvertures présentes sur la membrane et permettant au liquide de la traverser sont fermées par un pli de la membrane sous l'effet de la pression lors de la phase de délivrance. Dans les deux cas, le liquide est maintenu dans une chambre de dosage bien définie. De ce fait la pression appliquée au liquide dans la chambre de dosage est relativement faible. Ainsi, Le document US 3 134 514 indique que le récipient doit être retourné, son ouverture dirigée vers le sol, pour délivrer le liquide, alors que le document GB 1 054 307 s'applique à des fluides sous pressions pouvant être des gaz. Ces dispositifs permettent de garantir une bonne précision, mais ils ne conviennent pas à des liquides pâteux et à une utilisation courante. La présente invention permet de pallier à ces inconvénients en fournissant une solution basée sur un nombre de pièces restreint, et d'utilisation simple, pouvant être utilisé dans toutes les positions. A cet effet, l'objet de l'invention porte sur dispositif doseur destiné à un récipient souple muni d'un bouchon refermable, pour produits à l'état pâteux, caractérisé en ce qu'il comporte : - une partie cylindrique solidaire de la lèvre d'étanchéité ou du col du récipient, - une membrane fixée sur la partie cylindrique dans laquelle sont ménagées des ouvertures, - un corps cylindrique disposé au centre de la membrane de section supérieure à l'ouverture du récipient, - une tête ménagée à l'extrémité du corps cylindrique dont la section augmente à partir du corps cylindrique, la section maximale de la tête étant de diamètre sensiblement égal à l'ouverture du récipient, et en ce que le corps et la tête solidaires de la membrane peuvent se déplacer dans l'axe de l'ouverture du récipient, lorsqu'une pression est exercée sur les parois du récipient et appliquée sur la membrane, entre : - une première position d'obturation au repos, la tête obturant l'ouverture du récipient par sa partie de section maximale lorsque aucune pression n'est exercée, et - une seconde position d'obturation de butée, le corps cylindrique de diamètre supérieur à l'ouverture prenant appui sur le bord de celle-ci, obturant ainsi l'ouverture sous l'effet de la pression, les positions successives prises par le corps cylindrique et la tête lors de leur course intermédiaire entre les deux positions d'obturation ménageant un espace de forme annulaire entre le bord de l'ouverture et une partie de la tête de section inférieure au diamètre de l'ouverture permettant la délivrance du produit contenu dans le récipient. La configuration décrite du dispositif permet d'obtenir le dosage voulu à partir d'une géométrie simple. De plus, un passage direct est conservé entre le corps du récipient et l'extérieur, de façon à garantir une pression suffisante pour délivrer le produit à l'extérieur du récipient. Avantageusement, la nature élastique de la membrane permet de ramener le corps et la tête en position de repos lorsque la pression est supprimée sur les parois du récipient. L'utilisation d'une membrane élastique permet d'éviter l'utilisation de ressorts ou autres moyens de rappel. Cette approche permet d'utiliser le dispositif dans toutes les positions, avec une ouverture dirigée vers le haut ou vers le bas. Selon une possibilité, la membrane présente une forme générale annulaire de même axe que l'ouverture, délimitée sur son bord extérieur par la partie cylindrique et sur son bord intérieur par le corps cylindrique. Avantageusement, la membrane présente en position de repos une forme générale tronconique dont le sommet est orienté vers l'intérieur du récipient. La forme annulaire et tronconique de la membrane permet par son orientation en porte-à-faux d'accentuer la pression élastique tendant à ramener le dispositif vers sa position de repos. Selon une autre possibilité, la membrane comporte une portion cylindrique présentant des ondulations en forme de soufflet pouvant exercer une pression élastique pour ramener le corps et la tête en position de repos lorsque la pression est supprimée sur les parois du récipient. Avantageusement, le dispositif est réalisé d'une seule pièce en élastomère. La structure du dispositif permet sa réalisation en une seule pièce, cette pièce étant en élastomère assurant ainsi l'élasticité de la membrane. Selon une possibilité, la partie cylindrique est fixée par serrage sur la lèvre d'étanchéité ou le col du récipient. Selon une autre possibilité, le dispositif est incorporé dans une bague munie d'un pas de vis, pour être vissée sur la lèvre d'étanchéité ou sur le col du récipient. Selon une autre possibilité, le dispositif est réalisé par surmoulage sur la lèvre d'étanchéité ou le col du récipient. L'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant deux formes d'exécution du dispositif doseur. La figure 1 en est une vue en coupe transversale selon un premier mode de réalisation en position d'obturation de repos. La figure 2 en est une vue en coupe transversale selon un premier mode de réalisation en position intermédiaire. La figure 3 en est une vue en coupe transversale selon un premier mode de réalisation en position d'obturation de butée. La figure 4 en est une vue en coupe transversale selon un second mode de réalisation. Les figures 1 , 2, 3 représentent un dispositif doseur 2 selon l'invention, fixé sur un récipient souple 3 muni d'une ouverture refermable 4 pour produits cosmétiques. Le corps 5 du récipient souple 3 peut être réalisé par extrusion en polyéthylène par exemple, puis une tête 6 réalisée en polypropylène par moulage est soudée sur ce corps 5. La tête 6 présente un col 7, sur la paroi externe duquel est ménagé un filetage 8, et un épaulement 9. Le bouchon refermable 4 est composé d'une embase 10 et d'un capuchon 12. Sur la tête 6 est vissée l'embase 10 qui comporte : - une jupe extérieure d'habillage 13, de même axe que le col 7, de diamètre sensiblement égal au diamètre de l'épaulement 9 de la tête 6. - des moyens de fixation constitués par une jupe de fixation 14 de même axe que la jupe extérieure 13 mais de diamètre inférieur présentant un taraudage interne 15 coopérant avec un filetage externe 8 ménagé sur le col 7 du récipient 3 pour le vissage de l'embase 10 sur la tête 6.The present invention relates to a metering device intended for a flexible container provided with a resealable cap for products in a pasty state. A flexible container is often used to contain a cosmetic product in a pasty state such as sunscreen for example. To be effective, this product must be delivered in specific doses. However, the pressure exerted on the walls of the tube by the user does not guarantee that a constant dose is obtained, this pressure being variable in duration and in intensity. Dosing devices must therefore be used. The constraints to be observed for these metering devices intended for everyday use are: - the simplicity of use, - the simplicity of the device making it possible to guarantee a low economic cost compatible with mass production, - a minimal bulk, - a large ease of transport. However, dosing does not require great precision. Various existing dosing solutions have been described and used, based on the use of pumps. However, these solutions are unsuitable for use for tubes of sunscreen to be carried in a pocket. In addition, pumps are relatively complex devices and therefore of high cost. Piston devices have also been described, comprising a metering chamber fixed near the opening of the container, in which slides a piston subjected to the action of the pressure of the liquid between two extreme positions, the piston being able to be provided with spring type return means. The movement of the piston defines filling positions of the metering chamber and delivery of the metered amount. The documents DE 4 310 019, EP 0 560 839, EP 1 164 362, describe such devices. These devices present a mode of operation which can be complex and impose a position of use. On the other hand, the devices used include a large number of parts, incompatible with the use in a distribution of large distribution. Finally, devices using a membrane have been described, comprising a membrane associated with a rod carrying a head allowing to close the opening of a container and to define positions for filling and delivering the dose of liquid. The documents GB 1 054 307 and US 3 134514 describe such devices. In the first document, the dosage is a precision dosage obtained by filling a cavity formed in the body of the rod. In the second document, the openings present on the membrane and allowing the liquid to pass through it are closed by a fold of the membrane under the effect of the pressure during the delivery phase. In both cases, the liquid is kept in a well-defined dosing chamber. As a result, the pressure applied to the liquid in the metering chamber is relatively low. Thus, the document US Pat. No. 3,134,514 indicates that the container must be turned over, its opening directed towards the ground, to deliver the liquid, while the document GB 1,054,307 applies to pressurized fluids which may be gases. These devices ensure good accuracy, but they are not suitable for pasty liquids and for everyday use. The present invention overcomes these drawbacks by providing a solution based on a limited number of parts, and simple to use, which can be used in all positions. To this end, the object of the invention relates to a metering device intended for a flexible container provided with a resealable cap, for products in a pasty state, characterized in that it comprises: - a cylindrical part integral with the sealing lip or neck of the container, - a membrane fixed to the cylindrical part in which openings are made, - a cylindrical body disposed in the center of the membrane of cross section greater than the opening of the container, - a head provided the end of the cylindrical body whose section increases from the cylindrical body, the maximum section of the head being of diameter substantially equal to the opening of the container, and in that the body and the head integral with the membrane can move in the axis of the container opening, when pressure is exerted on the walls of the container and applied to the membrane, between: a first shutter position at rest, the head closing the opening of the container by its part of maximum section when no pressure is exerted, and a second stopper shutter position, the cylindrical body having a diameter greater than the opening resting on the edge thereof, thereby closing the opening under the effect of pressure, the successive positions taken by the cylindrical body and the head during their intermediate travel between the two shutter positions sparing an annular space between the edge of the opening and a part of the section head less than the diameter of the opening allowing the delivery of the product contained in the container. The described configuration of the device makes it possible to obtain the desired dosage from a simple geometry. In addition, a direct passage is kept between the body of the container and the outside, so as to guarantee sufficient pressure to deliver the product to the outside of the container. Advantageously, the elastic nature of the membrane makes it possible to bring the body and the head into the rest position when the pressure is removed on the walls of the container. The use of an elastic membrane avoids the use of springs or other return means. This approach allows the device to be used in all positions, with an opening directed upwards or downwards. According to one possibility, the membrane has a generally annular shape with the same axis as the opening, delimited on its outer edge by the cylindrical part and on its inner edge by the cylindrical body. Advantageously, the membrane has a generally frustoconical shape in the rest position, the top of which is oriented towards the interior of the container. The annular and frustoconical shape of the membrane allows, by its cantilever orientation, to accentuate the elastic pressure tending to bring the device back to its rest position. According to another possibility, the membrane comprises a cylindrical portion having corrugations in the form of a bellows which can exert an elastic pressure to bring the body and the head into the rest position when the pressure is removed on the walls of the container. Advantageously, the device is made in one piece of elastomer. The structure of the device allows it to be made in one piece, this piece being made of elastomer thus ensuring the elasticity of the membrane. According to one possibility, the cylindrical part is fixed by clamping on the sealing lip or the neck of the container. According to another possibility, the device is incorporated in a ring provided with a thread, to be screwed onto the sealing lip or onto the neck of the container. According to another possibility, the device is produced by overmolding on the sealing lip or the neck of the container. The invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing showing two embodiments of the metering device. Figure 1 is a cross-sectional view according to a first embodiment in the closed position of rest. Figure 2 is a cross-sectional view according to a first embodiment in the intermediate position. Figure 3 is a cross-sectional view according to a first embodiment in the stop closure position. Figure 4 is a cross-sectional view according to a second embodiment. Figures 1, 2, 3 show a metering device 2 according to the invention, fixed on a flexible container 3 provided with a resealable opening 4 for cosmetic products. The body 5 of the flexible container 3 can be produced by extrusion in polyethylene for example, then a head 6 made of polypropylene by molding is welded to this body 5. The head 6 has a neck 7, on the external wall of which a thread is formed 8, and a shoulder 9. The reclosable cap 4 is composed of a base 10 and a cap 12. On the head 6 is screwed the base 10 which comprises: - an outer covering skirt 13, of the same axis that the neck 7, of diameter substantially equal to the diameter of the shoulder 9 of the head 6. - fixing means constituted by a fixing skirt 14 of the same axis as the outer skirt 13 but of smaller diameter having an internal thread 15 cooperating with an external thread 8 formed on the neck 7 of the container 3 for screwing the base 10 on the head 6.
- des moyens d'étanchéité constitués par une lèvre intérieure d'étanchéité 16 de même axe que les deux jupes 13 et 14 également ménagée sur l'embase 10, cette lèvre 16 présentant un diamètre extérieur ajusté à celui du diamètre intérieur du col 7 du récipient 3, de manière à assurer son étanchéité lors du vissage de l'embase 10 sur la tête 6.- sealing means constituted by an inner sealing lip 16 of the same axis as the two skirts 13 and 14 also provided on the base 10, this lip 16 having an outside diameter adjusted to that of the inside diameter of the neck 7 of the container 3, so as to seal it when the base 10 is screwed onto the head 6.
- des moyens de verrouillage du capuchon, constitués par une paroi cylindrique verticale 17 de même axe que les jupes 13 et 14 dirigée vers l'extérieur du récipient et comportant un retour intérieur 18.- means for locking the cap, constituted by a vertical cylindrical wall 17 of the same axis as the skirts 13 and 14 directed towards the outside of the container and comprising an internal return 18.
- une paroi orientée perpendiculairement à l'axe du col en forme de coupelle 19 dans laquelle est ménagée un orifice rond constituant l'ouverture 20 du récipient.- A wall oriented perpendicular to the axis of the cup-shaped neck 19 in which is formed a round orifice constituting the opening 20 of the container.
L'embase 10 est reliée par une charnière constituée par un voile 22n 12 de forme générale circulaire. Ce capuchon 12 comporte :The base 10 is connected by a hinge constituted by a veil 22n 12 of generally circular shape. This cap 12 comprises:
- une première paroi extérieure cylindrique d'habillage 23, de même diamètre que la jupe d'habillage 13.a first cylindrical outer covering wall 23, of the same diameter as the covering skirt 13.
- des moyens de verrouillage, constitués par une paroi cylindrique 24 d'axe perpendiculaire au capuchon 12, et de rayon ajusté à la paroi cylindrique 17 destinée à être bloqué par le retour 18 présent sur celle-ci lorsque le bouchon 4 est fermé.- Locking means, constituted by a cylindrical wall 24 of axis perpendicular to the cap 12, and of radius adjusted to the cylindrical wall 17 intended to be blocked by the return 18 present thereon when the plug 4 is closed.
- un doigt cylindrique 25 faisant saillie sur la face intérieure du capuchon 12 et de diamètre sensiblement égal au diamètre de l'ouverture du récipient 20, venant prendre appui sur les bords de celle-ci lorsque le bouchon 4 est fermé, de façon à assurer l'étanchéité. Le dispositif 2 objet de l'invention, comporte, dans un premier mode de réalisation : - une partie cylindrique 26 fixée sur la lèvre d'étanchéité 16, de diamètre extérieur ajusté au diamètre intérieur de la lèvre d'étanchéité 16 pour assurer son maintien en position, - une membrane 27 fixée sur la partie cylindrique 26 dans laquelle sont ménagées des ouvertures 28 permettant le passage du produit du corps du récipient 5 vers l'ouverture 20, cette membrane présentant une forme générale tronconique, le sommet étant orienté vers l'intérieur du récipient 3, - un corps cylindrique 29 disposé au centre de la membrane 27 de section supérieure à l'ouverture 20 du récipient, - une tête 30 ménagée à l'extrémité du corps cylindrique 29 dont la section augmente à partir du corps cylindrique 29, la section maximale de la tête 30 étant de diamètre sensiblement égal à l'ouverture 20 du récipient. Le dispositif 2 est réalisé d'une seule pièce en élastomère ce qui garantit une grande simplicité de montage et un coût économique faible. La figure 1 représente le dispositif 2 en position de repos. L'obturation de l'ouverture 20 est réalisée par la partie de section maximale de la tête 30. Le capuchon 12 est refermé, le doigt 25 assurant l'étanchéité de l'ouverture 20. Si le capuchon est ouvert, la tête 30 reste en position d'obturation de l'ouverture 20 en l'absence de pression exercée sur les parois du récipient 3. La figure 2 représente le dispositif 2 lors de la délivrance d'une dose de produit. Lorsqu'une pression est exercée sur les parois du récipient 3, elle est appliquée sur la membrane 27. Le corps cylindrique 29 et la tête 30, solidaires de la membrane 27 se déplacent dans l'axe de l'ouverture 20, libérant ainsi un espace de forme annulaire 32 entre le bord de l'ouverture 20 et une partie de la tête 30 de section inférieure au diamètre de l'ouverture. Dans cette configuration, le produit contenu dans le récipient 3 est délivré. Un passage direct est présent entre le corps du récipient et l'extérieur, passant par les ouvertures 28 et l'espace annulaire 32, ce qui permet une délivrance de la dose de produit aisée en transmettant une pression satisfaisante. La figure 3 représente le dispositif 2 en position de butée. Sous l'effet de la pression, le corps cylindrique 29 et la tête 30 continuent leur course jusqu'à ce que le corps cylindrique 29 de diamètre supérieur à l'ouverture 20 vienne prendre appui sur le bord de celle-ci. Dans cette position, l'ouverture 20 est obturée. La course du corps cylindrique 29 et de la tête 30 entre les deux positions d'obturation de l'ouverture 20 permet la délivrance d'une dose sensiblement constante du produit contenu dans le récipient 3. La nature élastique de la membrane 27 permet au dispositif 2 de revenir dans sa position de repos lorsque la pression est supprimée sur les parois du récipient 3. La figure 4 représente un second mode d'exécution du dispositif 2, dans lequel la membrane 27 comporte une portion cylindrique 33 présentant des ondulations en forme de soufflet 34 pouvant exercer une pression élastique pour ramener le corps 29 et la tête 30 en position de repos lorsque la pression est supprimée sur les parois du récipient 3. L'invention ne se limite pas à la forme d'exécution décrite, elle en embrasse au contraire toutes les variantes. C'est ainsi notamment que le mode de fixation du dispositif doseur 2 au récipient 3 peut se présenter sous différentes formes. Au lieu de fixer le dispositif 2 par serrage de la partie cylindrique 26 dans la lèvre d'étanchéité 16, il est possible : - de réaliser un serrage direct sur le col 7 du récipient 3, - d'incorporer le dispositif doseur 2 dans une bague munie d'un pas de vis, pour être vissée sur le col 7 du récipient 3 ou dans l'embase 10. - de réaliser le dispositif 2 par bi-injection ou surmoulage sur un col 7 de récipient 3, la partie cylindrique 26 pouvant dans ce cas être constituée par l'intérieur du col 7 du récipient 3. - A cylindrical finger 25 projecting from the inner face of the cap 12 and of diameter substantially equal to the diameter of the opening of the container 20, coming to bear on the edges thereof when the cap 4 is closed, so as to ensure sealing. The device 2 which is the subject of the invention comprises, in a first embodiment: - a cylindrical part 26 fixed on the sealing lip 16, with an outside diameter adjusted to the inside diameter of the sealing lip 16 to ensure its maintenance in position, - a membrane 27 fixed on the cylindrical part 26 in which are formed openings 28 allowing the product to pass from the body of the container 5 to the opening 20, this membrane having a generally frustoconical shape, the top being oriented towards the inside the container 3, - a cylindrical body 29 disposed at the center of the membrane 27 of section greater than the opening 20 of the container, - a head 30 formed at the end of the cylindrical body 29, the section of which increases from the body cylindrical 29, the maximum section of the head 30 being of diameter substantially equal to the opening 20 of the container. The device 2 is made in a single piece of elastomer, which guarantees great simplicity of assembly and low economic cost. Figure 1 shows the device 2 in the rest position. The opening 20 is closed off by the part of maximum section of the head 30. The cap 12 is closed, the finger 25 sealing the opening 20. If the cap is open, the head 30 remains in the closed position of the opening 20 in the absence of pressure exerted on the walls of the container 3. Figure 2 shows the device 2 during the delivery of a dose of product. When pressure is exerted on the walls of the container 3, it is applied to the membrane 27. The cylindrical body 29 and the head 30, integral with the membrane 27 move in the axis of the opening 20, thus releasing a annular space 32 between the edge of the opening 20 and a part of the head 30 of section smaller than the diameter of the opening. In this configuration, the product contained in the container 3 is delivered. A direct passage is present between the body of the container and the outside, passing through the openings 28 and the annular space 32, which allows an easy delivery of the dose of product by transmitting a satisfactory pressure. Figure 3 shows the device 2 in the stop position. Under the effect of the pressure, the cylindrical body 29 and the head 30 continue their course until the cylindrical body 29 of diameter greater than the opening 20 come and lean on the edge of it. In this position, the opening 20 is closed. The stroke of the cylindrical body 29 and of the head 30 between the two closing positions of the opening 20 allows the delivery of a substantially constant dose of the product contained in the container 3. The elastic nature of the membrane 27 allows the device 2 to return to its rest position when the pressure is removed on the walls of the container 3. FIG. 4 represents a second embodiment of the device 2, in which the membrane 27 comprises a cylindrical portion 33 having corrugations in the form of bellows 34 which can exert an elastic pressure to bring the body 29 and the head 30 into the rest position when the pressure is removed on the walls of the container 3. The invention is not limited to the embodiment described, it embraces it on the contrary all the variants. Thus, in particular, the method of fixing the metering device 2 to the container 3 can take various forms. Instead of fixing the device 2 by tightening the cylindrical part 26 in the sealing lip 16, it is possible: - to carry out a direct tightening on the neck 7 of the container 3, - to incorporate the metering device 2 in a ring provided with a thread, to be screwed on the neck 7 of the container 3 or in the base 10. - to produce the device 2 by bi-injection or overmolding on a neck 7 of the container 3, the cylindrical part 26 which can in this case be constituted by the inside of the neck 7 of the container 3.

Claims

REVENDICATIONS 1. Dispositif doseur (2) destiné à un récipient souple (3) muni d'un bouchon refermable (4), pour produits à l'état pâteux, caractérisé en ce qu'il comporte : - une partie cylindrique (26) solidaire de la lèvre d'étanchéité (16) ou du col (7) du récipient (3), - une membrane (27) fixée sur la partie cylindrique (26) dans laquelle sont ménagées des ouvertures (28), - un corps cylindrique (29) disposé au centre de la membrane (27) de section supérieure à l'ouverture (20) du récipient, - une tête (30) ménagée à l'extrémité du corps cylindrique (29) dont la section augmente à partir du corps cylindrique (29), la section maximale de la tête (30) étant de diamètre sensiblement égal à l'ouverture (20) du récipient, et en ce que le corps (29) et la tête (30) solidaires de la membrane (27) peuvent se déplacer dans l'axe de l'ouverture (20) du récipient (3), lorsqu'une pression est exercée sur les parois du récipient (3) et appliquée sur la membrane (27), entre : - une première position d'obturation au repos, la tête (30) obturant l'ouverture (20) du récipient (3) par sa partie de section maximale lorsque aucune pression n'est exercée, et - une seconde position d'obturation de butée, le corps cylindrique (29) de diamètre supérieur à l'ouverture (20) prenant appui sur le bord de celle-ci, obturant ainsi l'ouverture (20) sous l'effet de la pression, les positions successives prises par le corps cylindrique (30) et la tête (29) lors de leur course intermédiaire entre les deux positions d'obturation ménageant un espace (32) de forme annulaire entre le bord de l'ouverture (20) et une partie de la tête (30) de section inférieure au diamètre de l'ouverture (20) permettant la délivrance du produit contenu dans le récipient (3). CLAIMS 1. Dosing device (2) intended for a flexible container (3) provided with a resealable cap (4), for products in a pasty state, characterized in that it comprises: - a cylindrical part (26) integral the sealing lip (16) or the neck (7) of the container (3), - a membrane (27) fixed on the cylindrical part (26) in which openings (28) are formed, - a cylindrical body ( 29) disposed in the center of the membrane (27) of cross section greater than the opening (20) of the container, - a head (30) formed at the end of the cylindrical body (29) whose section increases from the cylindrical body (29), the maximum section of the head (30) being of diameter substantially equal to the opening (20) of the container, and in that the body (29) and the head (30) integral with the membrane (27) can move in the axis of the opening (20) of the container (3), when pressure is exerted on the walls of the container (3) and applied to the m embranne (27), between: - a first closed position at rest, the head (30) closing the opening (20) of the container (3) by its part of maximum section when no pressure is exerted, and - a second stop closing position, the cylindrical body (29) of diameter greater than the opening (20) resting on the edge thereof, thereby closing the opening (20) under the effect of pressure , the successive positions taken by the cylindrical body (30) and the head (29) during their intermediate travel between the two shutter positions providing a space (32) of annular shape between the edge of the opening (20) and a part of the head (30) of section smaller than the diameter of the opening (20) allowing the delivery of the product contained in the container (3).
2. Dispositif (2) selon la revendication 1 , caractérisé en ce que la nature élastique de la membrane (27) permet de ramener le corps (29) et la tête (30) en position de repos lorsque la pression est supprimée sur les parois du récipient (3). 2. Device (2) according to claim 1, characterized in that the elastic nature of the membrane (27) makes it possible to bring the body (29) and the head (30) into the rest position when the pressure is removed on the walls of the container (3).
3. Dispositif (2) selon l'une des revendications 1 ou 2, caractérisé en ce que la membrane (27) présente une forme générale annulaire de même axe que l'ouverture (20) délimitée sur son bord extérieur par la partie cylindrique et sur son bord intérieur par le corps cylindrique. 3. Device (2) according to one of claims 1 or 2, characterized in that the membrane (27) has a generally annular shape of the same axis as the opening (20) delimited on its outer edge by the cylindrical part and on its inner edge by the cylindrical body.
4. Dispositif (2) selon la revendication 3, caractérisé en ce que la membrane (27) présente, en position de repos, une forme générale tronconique dont le sommet est orienté vers l'intérieur du récipient (3). 4. Device (2) according to claim 3, characterized in that the membrane (27) has, in the rest position, a generally frustoconical shape whose apex is oriented towards the interior of the container (3).
5. Dispositif (2) selon l'une des revendications 1 ou 2, caractérisé en ce que la membrane (27) comporte une portion cylindrique (33) présentant des ondulations (34) en forme de soufflet pouvant exercer une pression élastique pour ramener le corps (29) et la tête (30) en position de repos lorsque la pression est supprimée sur les parois du récipient (3). 5. Device (2) according to one of claims 1 or 2, characterized in that the membrane (27) comprises a cylindrical portion (33) having corrugations (34) in the form of a bellows which can exert an elastic pressure to bring the body (29) and head (30) in the rest position when the pressure is removed on the walls of the container (3).
6. Dispositif (2) selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif (2) est réalisé d'une seule pièce en élastomère. 6. Device (2) according to one of claims 1 to 5, characterized in that the device (2) is made in one piece of elastomer.
7. Dispositif (2) selon l'une des revendications 1 à 6, caractérisé en ce que la partie cylindrique (26) est fixée par serrage sur la lèvre d'étanchéité (16) ou le col (7) du récipient (3). 7. Device (2) according to one of claims 1 to 6, characterized in that the cylindrical part (26) is fixed by clamping on the sealing lip (16) or the neck (7) of the container (3) .
8. Dispositif (2) selon l'une des revendications 1 à 6, caractérisé en ce que le dispositif (2) est incorporé dans une bague munie d'un pas de vis, pour être vissée sur le col (7) du récipient (3). 8. Device (2) according to one of claims 1 to 6, characterized in that the device (2) is incorporated in a ring provided with a thread, to be screwed onto the neck (7) of the container ( 3).
9. Dispositif (2) selon l'une des revendications 1 à 6, caractérisé en ce que le dispositif (2) est réalisé par surmoulage sur la lèvre d'étanchéité (16) ou le col (7) du récipient (3). 9. Device (2) according to one of claims 1 to 6, characterized in that the device (2) is produced by overmolding on the sealing lip (16) or the neck (7) of the container (3).
EP04767422A 2003-07-02 2004-06-23 Dosing device for a flexible recipient comprising a reclosable stopper Withdrawn EP1638852A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0308041A FR2856984B1 (en) 2003-07-02 2003-07-02 DOSING DEVICE FOR A FLEXIBLE CONTAINER HAVING A REFERMABLE OPENING
PCT/FR2004/001566 WO2005012124A1 (en) 2003-07-02 2004-06-23 Dosing device for a flexible recipient comprising a reclosable stopper

Publications (1)

Publication Number Publication Date
EP1638852A1 true EP1638852A1 (en) 2006-03-29

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ID=33522686

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Application Number Title Priority Date Filing Date
EP04767422A Withdrawn EP1638852A1 (en) 2003-07-02 2004-06-23 Dosing device for a flexible recipient comprising a reclosable stopper

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Country Link
EP (1) EP1638852A1 (en)
FR (1) FR2856984B1 (en)
WO (1) WO2005012124A1 (en)

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Publication number Priority date Publication date Assignee Title
ES2803449T3 (en) 2008-02-18 2021-01-26 Essity Hygiene & Health Ab Disposable dispensing system comprising a collapsible container, a dispenser, and a method for dispensing liquid from said dispensing system
BRPI0822311A2 (en) 2008-02-18 2015-07-07 Sca Hygiene Prod Ab Disposable pump with suction mechanism
RU2452672C2 (en) * 2008-02-18 2012-06-10 Ска Хайджин Продактс Аб Throwaway pump with fluid return suction device
DK2262404T3 (en) 2008-02-18 2017-11-27 Sca Hygiene Prod Ab A disposable pump, a dispenser system comprising a pump and a method for dispensing liquid
KR101335570B1 (en) * 2012-03-12 2013-12-02 (주)연우 Tube type cosmetic case
EP3564147B1 (en) * 2018-05-03 2020-12-16 Aptar Radolfzell GmbH Fluid dispenser with compressible fluid storage

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Publication number Priority date Publication date Assignee Title
GB312291A (en) * 1927-12-24 1929-05-24 Nicholas Straussler Improvements in or relating to closure caps for collapsible tubes and other containers
US3794213A (en) * 1972-04-17 1974-02-26 G Schwartzman Tube mounted applicator
DE4310019C1 (en) * 1993-03-27 1994-04-21 Design Udo Suffa Gmbh S Elastically compressible plastics container for liq. - has dosing chamber ensuring constant dosed liq. delivery

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Also Published As

Publication number Publication date
FR2856984A1 (en) 2005-01-07
FR2856984B1 (en) 2005-09-09
WO2005012124A1 (en) 2005-02-10

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