EP1814672B1 - Flexible part forming an output valve and a return spring for a dispensing device - Google Patents
Flexible part forming an output valve and a return spring for a dispensing device Download PDFInfo
- Publication number
- EP1814672B1 EP1814672B1 EP05815619A EP05815619A EP1814672B1 EP 1814672 B1 EP1814672 B1 EP 1814672B1 EP 05815619 A EP05815619 A EP 05815619A EP 05815619 A EP05815619 A EP 05815619A EP 1814672 B1 EP1814672 B1 EP 1814672B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pusher
- outlet valve
- seat
- dispenser
- member according
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1028—Pumps having a pumping chamber with a deformable wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1028—Pumps having a pumping chamber with a deformable wall
- B05B11/1033—Pumps having a pumping chamber with a deformable wall the deformable wall, the inlet and outlet valve elements being integrally formed, e.g. moulded
Definitions
- the present invention relates to a fluid dispenser member comprising a body intended to be mounted or fixed on a tank opening, a pusher axially displaceable back and forth on the body and a flexible part connecting the body to the pusher.
- the piece forms return spring means which urge the pusher in the rest position.
- the piece forms a movable outlet valve member cooperating with an outlet valve seat formed by the pusher.
- the invention also relates to a fluid dispenser comprising a fluid reservoir and a dispensing member mounted on the reservoir. Such a dispensing member and such a dispenser may in particular be used in the fields of perfumery, cosmetics or even pharmacy.
- FR-2 674 024 discloses a pump comprising a body integrally formed with a portion of the reservoir.
- the pump further comprises a pusher movable axially back and forth relative to the body.
- the pump also comprises an inner part made of a flexible elastic material. This internal part makes the junction between the body and the pusher.
- the pusher forms an inlet manifold that defines an inlet opening that communicates with the reservoir.
- This inlet manifold is arranged axially centrally.
- the pusher comprises a side skirt which extends downwardly from a bearing wall on which it can exert pressure to move the pusher.
- the peripheral side skirt of the pusher extends in a variable manner around the inlet manifold.
- the inner part is mounted on the inlet pipe and forms a movable inlet valve member in selective sealing engagement with the inlet opening formed by the pipe.
- the piece forms return spring means in the form of a tubular sleeve elastically deformable by elongation. This return sleeve extends around the inlet tubing inside the peripheral skirt of the pusher.
- the inner piece also forms an anchor heel in engagement with the pusher, more particularly at the lower end of the side skirt. The spring sleeve thus connects the anchor heel to the part of the part forming the inlet valve.
- the inner part forms a deformable annular lip which bears tightly around an outlet valve seat.
- This annular lip thus fulfills a role of movable outlet valve member for the pressurized fluid within the chamber formed between the pusher and the inner part.
- the outlet valve movable member lip extends from the anchor heel substantially concentrically around the spring sleeve.
- the functions of return spring and movable outlet valve member are provided by two separate parts of the inner part. This of course makes the internal part more complicated to manufacture.
- the present invention aims to overcome the aforementioned drawbacks of the prior art by defining a dispensing member whose flexible inner part is easier to manufacture and assemble.
- the present invention provides a fluid dispenser member comprising a body for attachment to a reservoir opening, the body defining a fluid inlet communicating the reservoir with the interior of the body, a pusher axially displaceable back and forth on and relative to the body between a rest position and a depressed position, the pusher forming a fluid dispensing orifice, a flexible part connecting the body to the pusher, the piece forming means for return spring urging the pusher in the rest position, the piece forming a movable outlet valve member cooperating with a seat formed by the pusher, the part comprising means for holding in engagement with the body to fix the part on the body , the piece comprising anchoring means engaged with the pusher for securing the piece to the pusher, the holding means being surrounded by the anchoring means, the part comprising an elastically deformable part which extends between the means of holding and the anchoring means, characterized in that the elastically deformable portion forms both the return spring means and the movable outlet valve member.
- the dispensing member of the present invention has an architecture or design substantially similar to that of the document of the aforementioned prior art, namely that the flexible piece has a diameter less than the level of its connection to the body at the level of its connection to the pusher, which amounts to saying that the holding means are surrounded by the anchoring means, even if the holding means and the anchoring means are axially offset.
- the movable outlet valve member is deformable radially outwardly from its seat between the rest position and the depressed position.
- the movable outlet valve member and its seat are of annular shape, the movable outlet valve member surrounding the seat from the outside.
- the return spring means comprise an inverted dome-shaped annular crown.
- the deformable portion forms a corolla that extends outwardly around the holding means to the anchoring means, the corolla having in section a siphon shape or gooseneck recumbent.
- the corolla comprises a first inner section which extends radially outwards by forming an upward curvature and a second outer section connected outside the first section and which extends radially outwards in forming a bend down.
- the movable outlet valve member is formed at the junction of the first and second sections. We can say that the means of are formed radially inside the first section and the anchoring means are formed radially outside the second section.
- the part also forms a movable member of the inlet valve biased resiliently by elastic tabs on an inlet valve seat.
- the flexible part forms both the movable members of the inlet valve and the outlet valve and the return spring means.
- the invention also relates to a fluid dispenser comprising a fluid reservoir and a dispensing member as defined above.
- a fluid dispenser is shown which is more particularly suitable for dispensing pasty or viscous products such as creams. Therefore, it is more particularly a cosmetic dispenser. However, it is not excluded to distribute other types of fluid, such as gels, pasta in various fields including the food field.
- the dispenser comprises a reservoir which here consists of an inner flexible pouch 6 and an outer shell 5, which is preferably rigid.
- the outer shell 5 defines a neck 51 and the flexible pouch 6 defines an opening 61.
- This opening 61 may for example be folded over the neck 51 as seen in the figures.
- the flexible pouch 6 constitutes a fluid reservoir of volume variable as fluid is removed from the bag.
- tank associated with the dispensing member of the invention In particular, it is possible to use a reservoir comprising a barrel and a follower piston slidably mounted inside the barrel. This is another tank of the airless type. It is also possible to use more conventional constant volume tanks such as glass, plastic or metal flasks. In this case, the dispensing member of the invention must be provided with a dip tube.
- the dispensing member of the invention is mounted on the opening 61 of the pocket 6, which coincides here with the neck 51 of the rigid outer shell 5.
- the dispensing member of the invention comprises three constituent elements, namely a body 1, a pusher 2 and a flexible part 3.
- the dispenser member may comprise a protective cover 4 which caps the pusher and a part of the body.
- the body 1, the pusher 2 and the protective cover 4 can be made by injection molding a relatively rigid plastic material.
- the flexible part 3 it can be made by injection molding a softer plastic material, such as an elastomer.
- the flexible part 3 has elastic deformability characteristics at least in certain places of its extent. In other words, some parts of the flexible part may be rigid while other parts may be elastically deformable.
- the deformability characteristic can be conferred by the material used to form the flexible part, or by the configuration, the architecture or the wall thickness.
- the body 1 is preferably made in one piece. However, it is not excluded that it consists of two, three or four pieces reported together.
- the body 1 here comprises an outer fixing ring 11 engaged around the neck 51 of the rigid shell 5.
- This ring 11 can be provided with any appropriate attachment means allowing a firm and preferably definitive fixation of the body 1 on the rigid shell 5, or more generally on the fluid reservoir.
- This external fixing ring 11 is connected to an inner sleeve 12 which, in its lower part, penetrates inside the neck 51.
- the sleeve 12 wedges the opening 61 of the flexible bag 6 against the inner wall of the neck 51 of the rigid outer shell 5. The opening 61 can even be wedged between the neck 61 and the outer fixing ring 11.
- the Internal bushing 12 forms a reentrant thrust profile 121, the function of which will be explained hereinafter.
- the sleeve 12 is extended by a substantially horizontal annular flange 13 which closes the opening 61 of the pocket 6.
- This annular flange 13 acts as a roof or shoulder retreating for the fluid reservoir.
- the flange 13 extends upwards in the form of a substantially cylindrical pipe 14 which terminates in a free upper end.
- This tubing 14 is internally provided with an inlet flange 15 which defines both a fluid product inlet 16 and an inlet valve seat 17. It can be said that the fluid reservoir extends to the fluid inlet 16.
- the tubing 14 forms a pump chamber shaft.
- the body 1 may have a perfect symmetry of revolution about a vertical axis X.
- the fixing ring 11, the sleeve 12 and the tubing 14 may be of circular cylindrical shape with a common generator coincides with the X axis. other words, the ring 11, the sleeve 12 and the tubing 14 extend concentrically: the sleeve 12 extends inside the ring 11 and the tubing 14 extends inside the socket 12.
- the pusher 2 comprises a bearing surface 21 on which can be pressed with one or more finger (s) of a hand to move it axially back and forth relative to the body 1.
- the bearing surface 21 extends substantially perpendicular to the axis X.
- the bearing surface 21 is extended downwardly by a peripheral side skirt 25 whose lower free end defines a bead of stop 251 intended to cooperate with the retaining end profile 121.
- the skirt 25 has an outer diameter smaller than the internal diameter of the sleeve 12.
- the pusher 2 forms a dispensing nozzle internally defining an outlet conduit 23 opening at a dispensing orifice 24. The user can collect the fluid dispensed at this dispensing orifice 24.
- the nozzle extends radially or laterally outwards.
- the pusher 2 also defines a seat flange 22 which extends downwardly from the bearing surface 21.
- the seat flange 22 is of substantially cylindrical annular shape whose generator is also confused with the X axis.
- the seat flange 22 has a diameter smaller than that of the side skirt 25, but greater than the outside diameter of the tubing 14.
- the pusher 2 is mounted on the body 1 with its skirt 25 engaged inside. of the sleeve 12. The pusher 2 is prevented from disengaging from the body 1 because of the engagement between the bead 251 and the profile 121.
- the flexible piece 3 is preferably made in one piece.
- the part 3 comprises a fixing sleeve 33 engaged inside the tubing 14 at its free upper end.
- the sleeve 33 may be engaged in force inside the tube 14. It is possible, however, to design latching means to assist in the attachment of the sleeve 33 to the tube 14.
- the sleeve 33 protrudes axially beyond the The free end of the tubing 14.
- the sleeve extends radially outwardly by a resiliently deformable portion 34 similar to a corolla which has a substantially sign-shaped cross-sectional configuration. lying down or siphon.
- the elastically deformable portion or corolla comprises a first internal section 35 similar to an annular ring curved upwardly in the form of an inverted dome which is then extended by a second outer section 36 bent downwards.
- the sections 35 and 36 meet at a substantially cylindrical portion.
- the elastically deformable portion 34 forms a movable outlet valve member 38 intended to come into selective sealing contact with the outer wall of the seat flange 22 formed by the pusher 2.
- the seat flange 22 forms an outlet valve seat for the movable outlet valve member 38 formed by the elastically deformable portion 34 of the piece 3.
- the elastically deformable portion forms an anchoring ring 37 in gripping engagement
- This ring 37 fulfills a function of anchoring means of the flexible part 3 inside the pusher 2.
- the second outer section 36 extends outside the seat flange 22, but inside the skirt 25.
- the first inner section 35 it extends substantially between the seat flange 22 and the tubing 14.
- the configuration of the resiliently deformable portion 34 in the form of a coated sign collar or siphon gives it a deformability characteristic which allows the movable outlet valve member 38 to take off from its seat 22 by a radial outward movement.
- the elastically deformable portion is spaced at 38 from the seat 22 by a distance e which defines an annular gap through which the fluid can escape towards the distribution duct 23.
- the flexible part 3 can also form a movable inlet valve member 31 in selective sealing engagement with the inlet valve seat 17 formed by the body 1.
- the movable inlet valve member 31 is resiliently urged on its seat by resilient tabs 32 integrally formed by the flexible part 3. These resilient tabs 32 connect the movable valve member inlet 31 to the retaining sleeve 33.
- the movable member of the inlet valve 31 may be in the form of a cup or a bowl adapted to engage sealingly inside the sealing seat 17, and the inlet 16 of fluid product.
- the body 1, the pusher 2 and the flexible part 3 together form a pump chamber 10 closed at its inlet by the inlet valve and at its outlet by the outlet valve.
- the dispensing member is in the rest position.
- This rest position is determined by the rest position of the flexible part 3.
- the elastically deformable portion 34 more particularly at the level of the first internal section 35, performs a function of return spring means which make it possible to solicit the pusher 2 in the rest position relative to the body 1.
- This rest position corresponds to the position of the pusher 2 farthest from the body 1.
- This rest position can also be defined by the abutment of the bead 251 in 121.
- the rest position would not correspond to the rest position of the flexible part 3, since it would remain constantly under stress.
- the pump chamber 10 defines a maximum useful volume, with its closed inlet valve and its outlet valve also closed. Indeed, the movable member 31 is pressed on its seat 17 while the movable member 38 is in sealing contact against its seat 22.
- the axial displacement of the pusher 2 has the effect of deforming the first inner section 34 so as to further pronounce its inverted dome shape.
- Depressing the pusher 2 has the effect of pressing the movable valve member inlet 31 on its seat 17 and reduce the effective volume of the chamber 10, which has the effect of exerting pressure on the organ movable outlet valve 38 so that it comes off its seat 22.
- the valve member 38 is moved away from its seat 22 by a distance e.
- the pressurized fluid within the chamber 10 is forced through the outlet valve open to the dispensing conduit 23 and the dispensing orifice 24 where it can be collected by the user.
- the fully depressed position is reached when the bearing wall 21 abuts against the retaining sleeve 33. This is shown in FIG. figure 3 .
- the first section 35 then has a configuration in the form of an annular channel.
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
Description
La présente invention concerne un organe de distribution de produit fluide comprenant un corps destiné à être monté ou fixé sur une ouverture de réservoir, un poussoir déplaçable axialement en va-et-vient sur le corps et une pièce souple reliant le corps au poussoir. La pièce forme des moyens de ressort de rappel qui sollicitent le poussoir en position de repos. D'autre part, la pièce forme un organe mobile de clapet de sortie coopérant avec un siège de clapet de sortie formé par le poussoir. L'invention concerne également un distributeur de produit fluide comprenant un réservoir de produit fluide et un organe de distribution monté sur le réservoir. Un tel organe de distribution et un tel distributeur peuvent notamment être utilisés dans les domaines de la parfumerie, de la cosmétique ou encore de la pharmacie.The present invention relates to a fluid dispenser member comprising a body intended to be mounted or fixed on a tank opening, a pusher axially displaceable back and forth on the body and a flexible part connecting the body to the pusher. The piece forms return spring means which urge the pusher in the rest position. On the other hand, the piece forms a movable outlet valve member cooperating with an outlet valve seat formed by the pusher. The invention also relates to a fluid dispenser comprising a fluid reservoir and a dispensing member mounted on the reservoir. Such a dispensing member and such a dispenser may in particular be used in the fields of perfumery, cosmetics or even pharmacy.
De l'art antérieur, on connaît par exemple le document
La présente invention a pour but de remédier aux inconvénients précités de l'art antérieur en définissant un organe de distribution dont la pièce interne souple est plus facile à fabriquer et à monter.The present invention aims to overcome the aforementioned drawbacks of the prior art by defining a dispensing member whose flexible inner part is easier to manufacture and assemble.
Pour atteindre ces buts, la présente invention propose un organe de distribution de produit fluide comprenant un corps destiné à être fixé sur une ouverture de réservoir, le corps définissant une entrée de produit fluide faisant communiquer le réservoir avec l'intérieur du corps, un poussoir déplaçable axialement en va-et-vient sur et par rapport au corps entre une position de repos et une position enfoncée, le poussoir formant un orifice de distribution de produit fluide, une pièce souple reliant le corps au poussoir, la pièce formant des moyens de ressort de rappel sollicitant le poussoir en position de repos, la pièce formant un organe mobile de clapet de sortie coopérant avec un siège formé par le poussoir, la pièce comprenant des moyens de maintien en prise avec le corps pour monter fixement la pièce sur le corps, la pièce comprenant des moyens d'ancrage en prise avec le poussoir pour solidariser la pièce au poussoir, les moyens de maintien étant entourés par les moyens d'ancrage, la pièce comprenant une partie élastiquement déformable qui s'étend entre les moyens de maintien et les moyens d'ancrage, caractérisé en ce que la partie élastiquement déformable forme à la fois les moyens de ressort de rappel et l'organe mobile de clapet de sortie. Contrairement à l'art antérieur précité, les fonctions de ressort et d'organe mobile de clapet de sortie sont ici assurées par une seule et même partie de la pièce souple. La pièce souple de la présente invention se passe ainsi d'une lèvre d'étanchéité distincte assurant la fonction d'organe mobile de clapet de sortie.To achieve these objects, the present invention provides a fluid dispenser member comprising a body for attachment to a reservoir opening, the body defining a fluid inlet communicating the reservoir with the interior of the body, a pusher axially displaceable back and forth on and relative to the body between a rest position and a depressed position, the pusher forming a fluid dispensing orifice, a flexible part connecting the body to the pusher, the piece forming means for return spring urging the pusher in the rest position, the piece forming a movable outlet valve member cooperating with a seat formed by the pusher, the part comprising means for holding in engagement with the body to fix the part on the body , the piece comprising anchoring means engaged with the pusher for securing the piece to the pusher, the holding means being surrounded by the anchoring means, the part comprising an elastically deformable part which extends between the means of holding and the anchoring means, characterized in that the elastically deformable portion forms both the return spring means and the movable outlet valve member. In contrast to the aforementioned prior art, the functions of spring and movable outlet valve member are here provided by one and the same part of the flexible part. The flexible part of the present invention thus has a separate sealing lip ensuring the function of movable outlet valve member.
L'organe de distribution de la présente invention présente une architecture ou conception sensiblement similaire à celle du document de l'art antérieur précité, à savoir que la pièce souple présente un diamètre inférieur au niveau de sa connexion sur le corps qu'au niveau de sa connexion sur le poussoir, ce qui revient à dire que les moyens de maintien sont entourés par les moyens d'ancrage, même si les moyens de maintien et les moyens d'ancrage sont axialement décalés.The dispensing member of the present invention has an architecture or design substantially similar to that of the document of the aforementioned prior art, namely that the flexible piece has a diameter less than the level of its connection to the body at the level of its connection to the pusher, which amounts to saying that the holding means are surrounded by the anchoring means, even if the holding means and the anchoring means are axially offset.
Selon une forme de réalisation avantageuse, l'organe mobile de clapet de sortie est déformable radialement vers l'extérieur depuis son siège entre la position de repos et la position enfoncée. De préférence, l'organe mobile de clapet de sortie et son siège sont de forme annulaire, l'organe mobile de clapet de sortie entourant le siège de l'extérieur.According to an advantageous embodiment, the movable outlet valve member is deformable radially outwardly from its seat between the rest position and the depressed position. Preferably, the movable outlet valve member and its seat are of annular shape, the movable outlet valve member surrounding the seat from the outside.
Selon une forme de réalisation pratique, les moyens de ressort de rappel comprennent une couronne annulaire en forme de dôme renversé.According to a practical embodiment, the return spring means comprise an inverted dome-shaped annular crown.
Selon un autre aspect, la partie déformable forme une corolle qui s'étend vers l'extérieur autour des moyens de maintien vers les moyens de d'ancrage, la corolle présentant en section une forme de siphon ou de col de cygne couché. Avantageusement, la corolle comprend une première section intérieure qui s'étend radialement vers l'extérieur en formant une courbure vers le haut et une seconde section extérieure raccordée à l'extérieur de la première section et qui s'étend radialement vers l'extérieur en formant un coude vers le bas. De préférence, l'organe mobile de clapet de sortie est formée au niveau de la jonction des première et seconde sections. On peut ainsi dire que les moyens de maintien sont formés radialement à l'intérieur de la première section et les moyens d'ancrage sont formés radialement à l'extérieur de la seconde section.In another aspect, the deformable portion forms a corolla that extends outwardly around the holding means to the anchoring means, the corolla having in section a siphon shape or gooseneck recumbent. Advantageously, the corolla comprises a first inner section which extends radially outwards by forming an upward curvature and a second outer section connected outside the first section and which extends radially outwards in forming a bend down. Preferably, the movable outlet valve member is formed at the junction of the first and second sections. We can say that the means of are formed radially inside the first section and the anchoring means are formed radially outside the second section.
Selon une autre caractéristique de l'invention, la pièce forme également un organe mobile de clapet d'entrée sollicité élastiquement par des pattes élastiques sur un siège de clapet d'entrée. Ainsi, tout comme dans le document précité de l'art antérieur, la pièce souple forme à la fois les organes mobiles de clapet d'entrée et de clapet de sortie et les moyens de ressort de rappel.According to another characteristic of the invention, the part also forms a movable member of the inlet valve biased resiliently by elastic tabs on an inlet valve seat. Thus, as in the aforementioned document of the prior art, the flexible part forms both the movable members of the inlet valve and the outlet valve and the return spring means.
L'invention concerne également un distributeur de produit fluide comprenant un réservoir de produit fluide et un organe de distribution tel que défini ci-dessus.The invention also relates to a fluid dispenser comprising a fluid reservoir and a dispensing member as defined above.
L'invention sera maintenant plus amplement décrite en référence aux dessins joints donnant à titre d'exemple non limitatif un mode de réalisation de l'invention.The invention will now be more fully described with reference to the accompanying drawings giving by way of non-limiting example an embodiment of the invention.
Sur les figures :
- La
figure 1 est une vue en coupe transversale verticale à travers un distributeur de produit fluide comprenant un organe de distribution selon une forme de réalisation de l'invention ; et - Les
figures 2 ,3 et 4 sont des vues en section transversale verticale agrandies de l'organe de distribution de lafigure 1 , au cours de différentes phases d'actionnement.
- The
figure 1 is a vertical cross-sectional view through a fluid dispenser comprising a dispensing member according to an embodiment of the invention; and - The
figures 2 ,3 and 4 are enlarged vertical cross-sectional views of the dispensing member of thefigure 1 , during different phases of actuation.
En se référant à la
Le distributeur comprend un réservoir qui est ici constitué d'une poche souple interne 6 et d'une coque externe 5, qui est de préférence rigide. La coque externe 5 définit un col 51 et la poche souple 6 définit une ouverture 61. Cette ouverture 61 peut par exemple être repliée sur le col 51 comme on le voit sur les figures. La poche souple 6 constitue un réservoir de produit fluide de volume variable à mesure que du produit fluide est extrait de la poche. On peut ainsi parler de réservoir « airless » ou sans reprise d'air, dans lequel le produit fluide est à l'abri de l'air extérieur. On peut bien entendu imaginer d'autres types de réservoir associés à l'organe de distribution de l'invention. On peut en particulier utiliser un réservoir comprend un fût et un piston-suiveur monté de manière coulissante à l'intérieur du fût. Il s'agit là encore d'un réservoir du type airless. On peut également utiliser des réservoirs plus conventionnels à volume constant comme des flacons en verre, en matière plastique ou en métal. Dans ce cas, l'organe de distribution de l'invention devra être pourvu d'un tube-plongeur.The dispenser comprises a reservoir which here consists of an inner
L'organe de distribution de l'invention est monté sur l'ouverture 61 de la poche 6, qui coïncide ici avec le col 51 de la coque externe rigide 5. L'organe de distribution de l'invention comprend trois éléments constitutifs, à savoir un corps 1, un poussoir 2 et une pièce souple 3. Optionnellement, l'organe de distribution peut comprendre un capot de protection 4 qui vient coiffer le poussoir et une partie du corps. Le corps 1, le poussoir 2 ainsi que le capot de protection 4 peuvent être réalisés par injection moulage d'un matériau plastique relativement rigide. Quant à la pièce souple 3, elle peut être réalisée par injection moulage d'une matière plastique plus souple, comme par exemple un élastomère. Ainsi, la pièce souple 3 présente des caractéristiques de déformabilité élastique à au moins certains endroits de son étendue. En d'autres termes, certaines parties de la pièce souple peuvent être rigides alors que d'autres parties peuvent être élastiquement déformables. La caractéristique de déformabilité peut être conférée par le matériau utilisé pour former la pièce souple, ou encore par la configuration, l'architecture ou l'épaisseur de paroi.The dispensing member of the invention is mounted on the
On se référera maintenant plus particulièrement à la
Le corps 1 est de préférence réalisé de manière monobloc. Toutefois, il n'est pas exclu qu'il soit constitué de deux, trois ou quatre pièces rapportées ensemble. Le corps 1 comprend ici une bague externe de fixation 11 en prise autour du col 51 de la coque rigide 5. Cette bague 11 peut être pourvue de tout moyen d'accrochage approprié permettant de réaliser une fixation ferme et de préférence définitive du corps 1 sur la coque rigide 5, ou plus généralement sur le réservoir de produit fluide. Cette bague de fixation externe 11 est reliée à une douille interne 12 qui, dans sa partie basse, pénètre à l'intérieur du col 51. Avantageusement, la douille 12 coince l'ouverture 61 de la poche souple 6 contre la paroi interne du col 51 de la coque externe rigide 5. L'ouverture 61 peut même être coincée entre le col 61 et la bague de fixation externe 11. Ceci garantit une parfaite étanchéité entre la poche souple 6 et le corps 1. A son extrémité libre supérieure, la douille interne 12 forme un profil de butée rentrant 121, dont la fonction sera expliquée ci-après. A son extrémité inférieure, la douille 12 se prolonge par une bride annulaire sensiblement horizontale 13 qui referme l'ouverture 61 de la poche 6. Cette bride annulaire 13 fait fonction de toit ou d'épaulement rentrant pour le réservoir de produit fluide. Sur sa périphérie interne, la bride 13 se prolonge vers le haut sous la forme d'une tubulure sensiblement cylindrique 14 qui se termine par une extrémité supérieure libre. Cette tubulure 14 est pourvue intérieurement d'une collerette d'entrée 15 qui définit à la fois une entrée de produit fluide 16 et un siège de clapet d'entrée 17. On peut dire que le réservoir de produit fluide s'étend à l'intérieur de la tubulure 14 jusqu'au niveau de la collerette d'entrée 15. Dans sa partie supérieure, la tubulure 14 forme un fût de chambre de pompe. Le corps 1 peut présenter une symétrie parfaite de révolution autour d'un axe vertical X. La bague de fixation 11, la douille 12 et la tubulure 14 peuvent être de forme cylindrique circulaire avec une génératrice commune confondue avec l'axe X. En d'autres termes, la bague 11, la douille 12 et la tubulure 14 s'étendent de manière concentrique : la douille 12 s'étend à l'intérieur de la bague 11 et la tubulure 14 s'étend à l'intérieur de la douille 12.The
Le poussoir 2 comprend une surface d'appui 21 sur laquelle on peut appuyer à l'aide d'un ou de plusieurs doigt(s) d'une main pour le déplacer axialement en va-et-vient par rapport au corps 1. La surface d'appui 21 s'étend de manière sensiblement perpendiculaire à l'axe X. Sur sa périphérie externe, la surface d'appui 21 se prolonge vers le bas par une jupe latérale périphérique 25 dont l'extrémité inférieure libre définit un bourrelet de butée 251 destiné à coopérer avec le profil rentrant de butée 121. La jupe 25 présente un diamètre externe inférieur au diamètre interne de la douille 12. D'autre part, le poussoir 2 forme un embout de distribution définissant intérieurement un conduit de sortie 23 débouchant au niveau d'un orifice de distribution 24. L'utilisateur peut recueillir le produit fluide distribué au niveau de cet orifice de distribution 24. Dans la forme de réalisation représentée sur les dessins, l'embout s'étend radialement ou latéralement vers l'extérieur. On peut toutefois imaginer un embout de distribution qui s'étend verticalement de manière axiale ou excentrée. Selon l'invention, le poussoir 2 définit également une bride de siège 22 qui s'étend vers le bas à partir de la surface d'appui 21. La bride de siège 22 est de forme annulaire sensiblement cylindrique dont la génératrice est également confondue avec l'axe X. La bride de siège 22 présente un diamètre inférieur à celui de la jupe latérale 25, mais supérieur au diamètre externe de la tubulure 14. Le poussoir 2 est monté sur le corps 1 avec sa jupe 25 engagée à l'intérieur de la douille 12. Le poussoir 2 est empêché de se désengager du corps 1 du fait de la prise entre le bourrelet 251 et le profil 121.The
Selon l'invention, la pièce souple 3 est réalisée de préférence de manière monobloc. La pièce 3 comprend un manchon de fixation 33 en prise à l'intérieur de la tubulure 14 au niveau de son extrémité supérieure libre. Le manchon 33 peut être engagé en force à l'intérieur de la tubulure 14. On peut toutefois imaginer des moyens d'encliquetage pour aider à la fixation du manchon 33 sur la tubulure 14. Le manchon 33 fait saillie axialement au-delà de l'extrémité libre de la tubulure 14. Le manchon se prolonge radialement vers l'extérieur par une partie élastiquement déformable 34 semblable à une corolle qui présente une configuration en section transversale sensiblement en forme de col de signe couché ou de siphon. Plus précisément, la partie élastiquement déformable ou corolle comprend une première section interne 35 semblable à une couronne annulaire recourbée vers le haut sous la forme d'un dôme renversé qui se prolonge ensuite par une seconde section externe 36 coudée vers le bas. Les sections 35 et 36 se rejoignent au niveau d'une partie sensiblement cylindrique. A cet endroit, la partie élastiquement déformable 34 forme un organe mobile de clapet de sortie 38 destiné à venir en contact étanche sélectif avec la paroi externe de la bride de siège 22 formée par le poussoir 2. On peut également dire que la bride de siège 22 forme un siège de clapet de sortie pour l'organe mobile de clapet de sortie 38 formé par la partie élastiquement déformable 34 de la pièce 3. A son extrémité libre externe, la partie élastiquement déformable forme une couronne d'ancrage 37 en prise serrante étanche à l'intérieur de la jupe latérale 25. Cette couronne 37 remplit une fonction de moyens d'ancrage de la pièce souple 3 à l'intérieur du poussoir 2.According to the invention, the
Ainsi, on peut voir sur les figures que la seconde section externe 36 s'étend à l'extérieur de la bride de siège 22, mais à l'intérieur de la jupe 25. Quant à la première section interne 35, elle s'étend sensiblement entre la bride de siège 22 et la tubulure 14. La configuration de la partie élastiquement déformable 34 en forme de col de signe couché ou de siphon lui confère une caractéristique de déformabilité qui permet à l'organe mobile de clapet de sortie 38 de se décoller de son siège 22 par un mouvement radial vers l'extérieur. On peut notamment voir sur la
Optionnellement, la pièce souple 3 peut également former un organe mobile de clapet d'entrée 31 en prise sélective étanche sur le siège de clapet d'entrée 17 formé par le corps 1. Avantageusement, l'organe mobile de clapet d'entrée 31 est sollicité élastiquement sur son siège par des pattes élastiques 32 formées de manière monobloc par la pièce souple 3. Ces pattes élastiques 32 relient l'organe mobile de clapet d'entrée 31 au manchon de maintien 33. L'organe mobile de clapet d'entrée 31 peut présenter la forme d'une coupelle ou d'une cuvette adaptée à venir s'engager de manière étanche à l'intérieur du siège 17 obturant, ainsi l'entrée 16 de produit fluide.Optionally, the
Le corps 1, le poussoir 2 et la pièce souple 3 forment ensemble une chambre de pompe 10 fermée à son entrée par le clapet d'entrée et à sa sortie par le clapet de sortie. Dans la configuration représentée sur la
En appuyant sur la surface 21 du poussoir 2, celui-ci se déplace axialement vers le bas vers le corps 1. Ce déplacement axial, guidé par la douille 12, a pour effet de déformer la partie élastiquement déformable 34, plus particulièrement au niveau de sa première section interne 35. Toutefois, la seconde section externe 36 se déforme légèrement afin de permettre à l'organe mobile de clapet de sortie 38 de se décoller de son siège 22, comme on le voit sur la
C'est la configuration particulièrement avantageuse de la partie élastiquement déformable 35 qui permet de remplir à la fois les fonctions de ressort de rappel et d'organe mobile de clapet de sortie de la pompe.It is the particularly advantageous configuration of the elastically
On peut très bien imaginer un organe mobile de clapet d'entrée beaucoup plus simple, par exemple sous la forme d'un disque élastiquement déformable situé à l'intérieur du manchon de maintien 33.One can very well imagine a movable member of a much simpler inlet valve, for example in the form of an elastically deformable disk located inside the retaining
Claims (10)
- A fluid dispenser member comprising:a body (1) for fastening on a reservoir opening (61), the body defining a fluid inlet (16) causing the reservoir to communicate with the inside of the body;a pusher (2) that is axially displaceable towards and away from the body between a rest position and a depressed position, the pusher forming a fluid dispenser orifice (24); anda flexible part (3) connecting the body to the pusher, the part forming return spring means (35) urging the pusher towards the rest position, the part forming an outlet valve moving member (38) co-operating with a seat (22) formed by the pusher, the part having support means (33) engaged with the body to mount the part securely on the body, the part having anchor means (37) engaged with the pusher to secure the part to the pusher, the support means being surrounded by the anchor means, and the part including an elastically deformable portion (34) connecting the support means to the anchor means;the fluid dispenser member being characterized in that the elastically deformable portion (34) constitutes both the return spring means (35) and the outlet valve moving member (38).
- A dispenser member according to claim 1, in which the outlet valve moving member is radially deformable outwards from its seat between the rest position and the depressed position.
- A dispenser member according to claim 1 or claim 2, in which the outlet valve moving member and its seat are annular in shape, the outlet valve moving member surrounding the seat from the outside.
- A dispenser member according to any preceding claim, in which the return spring means comprise an annular ring (35) in the form of an upside-down dome.
- A dispenser member according to any preceding claim, in which the deformable portion forms a corolla shape (34) that extends outwards around the support means towards the anchor means, the corolla shape presenting a section in the form of a siphon or of a prone swan neck.
- A dispenser member according to claim 5, in which the corolla shape has an inner first section (35) that extends radially outwards, being upwardly curved, and an outer second section (36) connected to the outside of the first section and extending radially outwards forming a downwardly-directed bend.
- A dispenser member according to claim 6, in which the outlet valve moving member is formed at the junction between the first and second sections.
- A dispenser member according to claim 6 or claim 7, in which the support means are formed inside the first section and the anchor means are formed outside the second section.
- A dispenser member according to any preceding claim, in which the part also forms an inlet valve moving member (31) elastically urged by resilient tabs (32) against an inlet valve seat (17).
- A fluid dispenser comprising a fluid reservoir (6) and a dispenser member according to any preceding claim.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0452512A FR2877320B1 (en) | 2004-11-03 | 2004-11-03 | FLUID PRODUCT DISPENSING MEMBER AND FLUID PRODUCT DISPENSING DEVICE PROVIDED WITH SUCH A DISPENSING MEMBER |
PCT/FR2005/050915 WO2006048578A1 (en) | 2004-11-03 | 2005-10-28 | Flexible part forming an output valve and a return spring for a dispensing device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1814672A1 EP1814672A1 (en) | 2007-08-08 |
EP1814672B1 true EP1814672B1 (en) | 2008-03-19 |
Family
ID=34952380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05815619A Active EP1814672B1 (en) | 2004-11-03 | 2005-10-28 | Flexible part forming an output valve and a return spring for a dispensing device |
Country Status (8)
Country | Link |
---|---|
US (1) | US7819290B2 (en) |
EP (1) | EP1814672B1 (en) |
CN (1) | CN100518953C (en) |
BR (1) | BRPI0517994A (en) |
DE (1) | DE602005005514T2 (en) |
ES (1) | ES2303698T3 (en) |
FR (1) | FR2877320B1 (en) |
WO (1) | WO2006048578A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007003311T5 (en) * | 2007-02-17 | 2009-12-31 | Ding, Yaowu, Taixing | Lotion pump and one-way valve contained therein |
ITRM20070538A1 (en) * | 2007-10-12 | 2009-04-13 | Emsar Spa | FLUID PRODUCTS DISPENSER. |
US20110303702A1 (en) * | 2010-06-11 | 2011-12-15 | Derxin (Shanghai) Cosmetics Co., Ltd. | Liquid spray head assembly |
RU2601453C2 (en) * | 2011-06-09 | 2016-11-10 | Айропак Текнолоджи Груп Аг | Pumping device for container intended for fluid medium |
DE102011052954A1 (en) | 2011-08-24 | 2013-02-28 | Alfred Von Schuckmann | Dispensers for pasty masses |
DE202011051538U1 (en) | 2011-10-05 | 2013-01-08 | Alfred Von Schuckmann | Dispensers for pasty masses |
FR2989598B1 (en) * | 2012-04-24 | 2016-01-01 | Lablabo | DEVICE FOR PACKAGING AND DISPENSING FLUID PRODUCTS WITH A MANUAL PUMP. |
EP2756888A1 (en) * | 2013-01-16 | 2014-07-23 | Ya-Tsan Wang | Cylinder assembly and dispensing pump using the same |
DE102014200867A1 (en) * | 2014-01-17 | 2015-08-06 | Aptar Radolfzell Gmbh | Dispenser for liquids |
DE102016106017A1 (en) * | 2015-10-07 | 2017-04-13 | Rpc Bramlage Gmbh | Dispensers for in particular liquid to pasty masses |
DE102016206893A1 (en) | 2016-04-22 | 2017-10-26 | Robert Bosch Gmbh | Apparatus and method for dosing a flowable product, preferably food |
GB201804287D0 (en) * | 2018-03-16 | 2018-05-02 | Innovation Junction Ltd | Spray containers |
CN111392231A (en) * | 2019-01-03 | 2020-07-10 | 丁要武 | Emulsion pump |
WO2020208073A1 (en) | 2019-04-09 | 2020-10-15 | Rpc Bramlage Gmbh | Dispenser for compounds in paste form |
WO2021093900A1 (en) * | 2019-11-12 | 2021-05-20 | 丁要武 | Bladder-type dispensing pump |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4347953A (en) * | 1980-05-30 | 1982-09-07 | Peter Bauer | Elastomer bulb dispensing pump |
FR2585439B1 (en) * | 1985-07-24 | 1988-01-08 | Cebal | DISPENSING HEAD FOR CREAMY OR PASTY PRODUCTS |
FR2604980B1 (en) * | 1986-10-13 | 1988-12-02 | Cebal | DISPENSER FOR PASTY PRODUCT AND METHOD FOR MANUFACTURING THE CORRESPONDING DISPENSER BODY |
DE3844854C2 (en) * | 1987-08-28 | 1994-08-11 | Andris Raimund Gmbh & Co Kg | Metering and spray pump |
FR2627460B1 (en) * | 1988-02-19 | 1990-06-29 | Cebal | DISPENSER FOR PASTY PRODUCT COMPRISING A SIDE DISPENSING AXIAL PUSH-BUTTON AND A MASKING ELEMENT OF ITS OUTPUT PORT |
FR2674024B1 (en) | 1991-03-11 | 1994-03-11 | Daniel Crosnier | METERING DEVICE ADAPTABLE TO VARIOUS CONTAINERS. |
FR2728809B1 (en) * | 1995-01-04 | 1997-04-04 | Daniel Crosnier | DOSING DEVICE ADAPTABLE TO VARIOUS CONTAINERS |
US5544789A (en) * | 1995-01-05 | 1996-08-13 | Calmar Inc. | Bellows pump dispenser |
FR2764005B1 (en) * | 1997-05-29 | 2004-12-10 | Sofab | ARTICULATED PISTON PUMP |
FR2804887B1 (en) * | 2000-02-15 | 2002-04-19 | Oreal | PUMP COMPRISING A MOBILE MEMBER PROVIDED WITH A CENTRAL CONDUIT AND A MEMBRANE COMPRISING MOUNTING MEANS COMPRISING ON THIS CENTRAL CONDUIT, AND CONTAINER THUS EQUIPPED |
AUPQ855800A0 (en) * | 2000-07-04 | 2000-07-27 | Brennan, James William | Dispenser head |
FR2813863B1 (en) * | 2000-09-08 | 2003-03-21 | Rexam Sofab | LIQUID PRODUCT DISTRIBUTOR |
NL1023670C1 (en) * | 2002-07-03 | 2004-01-06 | Keltub B V | Assembly of bellows and unrolling part, pump and method for the use thereof. |
JP4021268B2 (en) * | 2002-07-24 | 2007-12-12 | 勝利 増田 | Fluid discharge pump |
JP2005021826A (en) * | 2003-07-03 | 2005-01-27 | Katsutoshi Masuda | Piston and fluid container using the piston |
-
2004
- 2004-11-03 FR FR0452512A patent/FR2877320B1/en not_active Expired - Fee Related
-
2005
- 2005-10-28 ES ES05815619T patent/ES2303698T3/en active Active
- 2005-10-28 US US11/666,924 patent/US7819290B2/en not_active Expired - Fee Related
- 2005-10-28 DE DE602005005514T patent/DE602005005514T2/en active Active
- 2005-10-28 BR BRPI0517994-7A patent/BRPI0517994A/en not_active IP Right Cessation
- 2005-10-28 CN CNB2005800374140A patent/CN100518953C/en not_active Expired - Fee Related
- 2005-10-28 WO PCT/FR2005/050915 patent/WO2006048578A1/en active IP Right Grant
- 2005-10-28 EP EP05815619A patent/EP1814672B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE602005005514T2 (en) | 2009-04-23 |
BRPI0517994A (en) | 2008-10-21 |
US20080110934A1 (en) | 2008-05-15 |
US7819290B2 (en) | 2010-10-26 |
EP1814672A1 (en) | 2007-08-08 |
WO2006048578A1 (en) | 2006-05-11 |
CN100518953C (en) | 2009-07-29 |
FR2877320B1 (en) | 2008-08-29 |
ES2303698T3 (en) | 2008-08-16 |
FR2877320A1 (en) | 2006-05-05 |
DE602005005514D1 (en) | 2008-04-30 |
CN101052472A (en) | 2007-10-10 |
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