EP1448312B1 - Laterally-actuated fluid dispensing device - Google Patents

Laterally-actuated fluid dispensing device Download PDF

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Publication number
EP1448312B1
EP1448312B1 EP02800588A EP02800588A EP1448312B1 EP 1448312 B1 EP1448312 B1 EP 1448312B1 EP 02800588 A EP02800588 A EP 02800588A EP 02800588 A EP02800588 A EP 02800588A EP 1448312 B1 EP1448312 B1 EP 1448312B1
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EP
European Patent Office
Prior art keywords
reservoir
laterally
actuator
elements
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP02800588A
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German (de)
French (fr)
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EP1448312A1 (en
Inventor
Giuseppe Stradella
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.)
RG SAS Di Rosaria Galli and Co
Tebro SA
Original Assignee
RG SAS Di Rosaria Galli and Co
Tebro SA
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Publication of EP1448312A1 publication Critical patent/EP1448312A1/en
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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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • 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
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • B05B11/062—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump designed for spraying particulate material

Definitions

  • the present invention relates to a fluid dispenser device, and more particularly to a fluid dispenser device with lateral actuation.
  • the user must slightly force on the bottom of the device to perform this operation, and at the moment when it takes place, part of the force is released so that the arm or the hand of the user can be dragged into this same axial direction, which can cause a risk of injury, especially when the dispensing orifice is introduced into the nostril.
  • the document EP-A-0 557 714 which shows a device according to the preamble of claim 1, describes a fluid device comprising a multidose reservoir inside which extends a rhombic structure able to move axially a body of pump relative to a fluid device head.
  • the devices with lateral actuation, in which the user does not itself exert an axial force on the device, but instead exerts a lateral or transverse force to the device.
  • the axis of distribution of the product for example by means of a button or a pivoting lateral lever, this transverse force being transformed into an axial force.
  • the user holds the device in his hand by gripping the body of the device, or more generally the part which incorporates the dispensing orifice, a finger, for example the thumb, being used to press the lateral actuating element.
  • a finger for example the thumb
  • the actuation requires a greater or lesser axial force.
  • the transfer of the radial force exerted by the user in an axial force allowing the actuation is not total, so that the user must press harder in a device with lateral actuation that it would not be obliged to do if it exerted an axial pressure.
  • the user must either exert a large force, which is not always possible, especially with children or the elderly, or we must provide actuating means large enough to allow easier transfer. This increase in the size of the device however often has a disadvantage whether in terms of cost of manufacture or storage, or even from a point of view of ergonomics of use.
  • the object of the present invention is to provide a side-actuated fluid dispensing device which does not reproduce the aforementioned drawbacks.
  • the object of the present invention is to provide a lateral-actuated fluid dispenser device which in all cases makes it possible to perform lateral actuation by means of the smallest possible radial force.
  • the present invention therefore relates to a fluid dispenser device comprising a body, a product reservoir containing one or more doses of fluid, a piston adapted to slide in said reservoir to dispense a dose of product each actuation of the device , and actuating means for moving said piston, characterized in that said device comprises at least two lateral actuating elements distributed around said body, said lateral actuating elements being moved simultaneously in a direction approximately transverse to the central axis of the device and each cooperating with a peripheral edge of said actuating means to exert an axial force thereon.
  • the present invention also relates to a fluid dispenser device comprising a body, a product reservoir containing one or more doses of fluid, an air flow generation system, such as an air flush or a bellows, connected to said reservoir, and actuating means for actuating said air flow generating system, characterized in that said device comprises at least two lateral actuating elements distributed around said body, said elements of lateral actuation being moved simultaneously in a direction about transverse to the central axis of the device, and each cooperating with a peripheral edge of said actuating means to exert an axial force thereon.
  • an air flow generation system such as an air flush or a bellows
  • each lateral actuating element is made in the form of a lever pivotally mounted on said body.
  • each lever comprises a radial flange connected on the one hand to the body of the device and on the other hand supporting an actuating wing extending approximately axially towards the bottom of the device, said actuating wing being elastically deformed between a position resting and an actuating position when the user exerts a radial force on it, and returning elastically to its rest position when the user releases its force.
  • said actuating elements each comprise a cam surface cooperating with the peripheral edge of the actuating means.
  • said cam surface is an inclined plane whose slope is variable during the displacement of the actuating elements, said slope being maximum at the beginning of the actuation and minimum at the end of actuation, so that the transfer of the radial actuating force exerted by the user on said actuating elements in an axial force of displacement of the means of actuation is maximum at the end of actuation.
  • the reservoir contains a single dose of product expelled in a single actuation of the device.
  • the reservoir contains at least two doses, dose-splitting means being provided for fractionating the contents of the reservoir in several doses.
  • said actuating means are connected to said piston.
  • said actuating means are formed by or connected to said reservoir.
  • the dose splitting means are adapted to limit the stroke of the piston in the reservoir, each partial stroke corresponding to a dose of product.
  • said dose splitting means are made on the lateral actuating elements.
  • said dose splitting means are made by a notch in the planar cam surface of at least one lateral actuating element, said notch cooperating with the body to define the actuating end of said actuating elements.
  • At least one lateral actuating element comprises a notch in its plane cam surface cooperating with the body to define the actuating end of the operating elements.
  • said peripheral edge of the actuating means is the lower peripheral edge.
  • said device comprises two lateral actuating elements diametrically opposed to each other with respect to said body.
  • a fluid dispensing device called a single dose or unit dose, that is to say it contains only a single dose of product in its reservoir.
  • a single dose or unit dose that is to say it contains only a single dose of product in its reservoir.
  • the detailed description below will therefore be made with reference to this particular embodiment of the invention, but it is clear that the present invention is not limited to this type of device, but could on the contrary also be applied to bidose-type devices, that is to say containing two doses, or even several doses.
  • the dispensing device comprises a body 10 in which is disposed a fluid reservoir 20 connected on the one hand to distribution means 30 and on the other hand to a dispensing orifice 25.
  • the dispensing means 30 shown in FIGS. 1 and 2 are made in the form of a flush of air which is adapted to generate a flow of compressed air which, when the needle 31 connected to the flush 30 comes pierce the membrane of the reservoir 20, expels the sealing ball 22 by driving with it the product contained inside the reservoir 20 towards the dispensing orifice 25.
  • the fluid is generally a powder.
  • This axial compression of the piston 40, which forms the flushing actuating means 30, requires an increasing force as and when the air is compressed because of the resistance of this air until this compressed air is released during actuation.
  • the device comprises at least two lateral actuation elements distributed around said body (10).
  • these lateral actuating elements 50, 60 are formed on said body 10, in particular integrally.
  • These lateral actuating members 50,60 are adapted to cooperate with an edge 41 of said piston 40, preferably by means of a cam surface 55, which is preferably formed by an inclined plane.
  • said edge 41 is the lower outer peripheral edge.
  • each lateral actuating element 50, 60 is made in a similar manner, and advantageously comprises a radial flange 51 which is connected on the one hand to the body 10 and which is further extended by a flange 52 extending downwardly in the drawings, and having said respective cam surface 55, 65.
  • this cam surface 55, 65 of each lateral actuating element 50, 60 advantageously cooperates with the edge.
  • device 41 which in this case is the lower outer edge, and the fact that the cam surface is in the form of an inclined plane, the point of contact between the respective lateral actuating element and the means of actuation formed by the piston 40 remains said outer edge 41 throughout the actuating stroke.
  • a particularly interesting aspect of the present invention is that in fluid dispensing devices, especially those comprising one or two doses, the actuating force is increasingly important during the actuating stroke, to become maximum just before the distribution.
  • the present invention makes it possible to respond to this feature by the fact that the slope of the cam surface 55 or 65 respectively of each lateral actuating element 50 or 60, which is formed by an inclined plane, varies during actuation.
  • the slope is quite large, which implies a relatively small force transfer
  • the slope is significantly lower, so that the transfer of the radial force exerted by the user is much higher at that moment.
  • the transfer of force becomes maximum at the end of the actuating stroke, at the moment when the resistance of the dispensing device is also maximal, so that the present invention actually allows actuation of the device by means of a relatively constant force exerted on the two lateral actuating elements 50, 60.
  • the modification of the slope during actuation involves an increasing transfer of the actuating force of the user, which compensates for the increase in the resistance of the hunt. in the example shown in the figures.
  • the dispensing means 30 are made in the form of a piston 30 that moves in a sealed manner in the reservoir 20.
  • the actuating means 40 can then either be connected to said piston 30, as shown in Figure 3, or connected to said reservoir 20, as shown in Figure 4, to induce a relative axial displacement between these two elements.
  • the reservoir 20 may comprise a single dose of product, in which case this dose is dispensed in a single operation.
  • the reservoir may comprise two or more doses of product, in which case dose splitting means are advantageously provided to limit the stroke of the piston in the reservoir.
  • the actuating means may comprise resilient return means in the rest position after each actuation.
  • stop means 59, 69 are provided to define the actuating end of the actuating elements.
  • These stop means may be in the form of notches 59, 69 made in the cam surface 55, 65 of at least one of the lateral actuating elements 50, 60, preferably in each of them. As shown in FIG. 2, these notches 59, 69 cooperate at the end of the actuating stroke with the lower edge of the body 10.
  • these notches 59, 69 can also be used to define the dose splitting means, by defining the end of actuation stroke of the piston in the reservoir, the next dose being dispensed at the next actuation.
  • the use of two or more lateral actuating elements of the present invention provides improved ergonomics, and in particular provides symmetry at the moment of actuation, that is to say that the user exerts about the same radial force on each of the lateral actuating elements 50, 60. It follows a strong stability of the distribution device as a whole in both the axial direction, since the user no longer exerts axial force on the device, and in the radial position, since the user exerts the same force on each side of the device.
  • the device is not necessarily a single dose, but could be a bidose or even a device with more than two doses, as long as means of fractionation of doses are provided in the device.
  • these dose splitting means may be part of the lateral actuating elements.
  • the dispensing means are not limited to the air flush shown in the drawings, but other dispensing means, in particular a piston sliding in the reservoir are conceivable.
  • the device may comprise more than two lateral actuation elements, for example three or four, distributed at regular intervals around the body of the device.
  • peripheral edge with which each lateral actuating element cooperates is not necessarily the lower edge, nor is it necessarily formed by a sharp edge, but could on the contrary be an inclined edge corresponding to the surface. cam actuating elements.
  • Other modifications are also possible by those skilled in the art without departing from the scope of the present invention as defined by the appended claims.

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  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Description

La présente invention concerne un dispositif de distribution de produit fluide, et plus particulièrement un dispositif de distribution de produit fluide à actionnement latéral.The present invention relates to a fluid dispenser device, and more particularly to a fluid dispenser device with lateral actuation.

Dans la plupart des dispositifs de distribution de produit fluide, que ce soit dans le domaine de la pharmacie, de la parfumerie, de la cosmétique, voire d'autres domaines voisins, le produit est généralement expulsé au moyen d'une force d'actionnement réalisée de manière axiale. Cette force est souvent exercée par l'utilisateur en appuyant avec son pouce sur le fond du dispositif et en maintenant la tête du dispositif qui incorpore l'orifice de distribution avec d'autres doigts de la même main. Ce type de dispositif de distribution procure un certain nombre d'inconvénients, notamment dans le cas d'applications nasales, puisqu'il crée souvent un déplacement axial de l'ensemble du dispositif au moment de l'actionnement, notamment dû à la résistance que fournit le dispositif pendant l'actionnement. L'utilisateur doit légèrement forcer sur le fond du dispositif pour réaliser cet actionnement, et au moment où celui-ci a lieu, une partie de la force est libérée de sorte que le bras ou la main de l'utilisateur peut être entraîné dans cette même direction axiale, ce qui peut entraîner un risque de blessure, notamment lorsque l'orifice de distribution est introduit à l'intérieur de la narine.In most fluid dispensing devices, whether in the field of pharmacy, perfumery, cosmetics or even other neighboring areas, the product is generally expelled by means of an actuating force. performed axially. This force is often exerted by the user by pressing with his thumb on the bottom of the device and maintaining the head of the device that incorporates the dispensing orifice with other fingers of the same hand. This type of dispensing device provides a number of disadvantages, especially in the case of nasal applications, since it often creates an axial displacement of the entire device at the time of actuation, in particular due to the resistance that provides the device during actuation. The user must slightly force on the bottom of the device to perform this operation, and at the moment when it takes place, part of the force is released so that the arm or the hand of the user can be dragged into this same axial direction, which can cause a risk of injury, especially when the dispensing orifice is introduced into the nostril.

Le document EP-A-0 557 714, qui montre un dispositif selon le préambule de la revendication 1, décrit un dispositif de produit fluide comportant un réservoir multidose à l'intérieur duquel s'étend une structure rhombique apte à déplacer axialement un corps de pompe relativement à une tête de dispositif de produit fluide.The document EP-A-0 557 714, which shows a device according to the preamble of claim 1, describes a fluid device comprising a multidose reservoir inside which extends a rhombic structure able to move axially a body of pump relative to a fluid device head.

Pour remédier à ce problème, il a été proposé d'utiliser les dispositifs à actionnement latéral, dans lesquels l'utilisateur n'exerce plus lui-même une force axiale sur le dispositif, mais au contraire exerce une force latérale ou transversale à l'axe de distribution du produit, par exemple au moyen d'un bouton ou d'un levier latéral pivotant, cette force transversale étant transformée en une force axiale. Dans ce type connu de dispositif de distribution à actionnement latéral, l'utilisateur maintient le dispositif dans sa main en agrippant le corps du dispositif, ou plus généralement la partie qui incorpore l'orifice de distribution, un doigt, par exemple le pouce, étant utilisé pour appuyer sur l'élément d'actionnement latéral. Selon le dispositif de distribution utilisé, en particulierTo remedy this problem, it has been proposed to use the devices with lateral actuation, in which the user does not itself exert an axial force on the device, but instead exerts a lateral or transverse force to the device. the axis of distribution of the product, for example by means of a button or a pivoting lateral lever, this transverse force being transformed into an axial force. In this known type of side-actuated dispensing device, the user holds the device in his hand by gripping the body of the device, or more generally the part which incorporates the dispensing orifice, a finger, for example the thumb, being used to press the lateral actuating element. Depending on the distribution device used, in particular

selon le type de pompe, ou plus généralement le type de moyen de distribution nécessaire pour réaliser l'expulsion du produit, l'actionnement nécessite une force axiale plus ou moins importante. Or, dans les dispositifs de distribution à actionnement latéral connus, le transfert de la force radiale exercée par l'utilisateur en une force axiale permettant l'actionnement n'est pas total, de sorte que l'utilisateur doit appuyer plus fort dans un dispositif à actionnement latéral qu'il ne serait obligé de le faire s'il exerçait une pression axiale. L'utilisateur doit alors soit exercer une force importante, ce qui n'est pas toujours possible, notamment avec des enfants ou les personnes âgées, ou alors on doit prévoir des moyens d'actionnement de dimension suffisamment grande pour permettre un transfert plus aisé. Cette augmentation de la dimension du dispositif présente toutefois souvent un inconvénient que ce soit en terme de coût de fabrication ou de stockage, ou même d'un point de vue de l'ergonomie d'utilisation.depending on the type of pump, or more generally the type of dispensing means necessary to carry out the expulsion of the product, the actuation requires a greater or lesser axial force. However, in known lateral actuation dispensing devices, the transfer of the radial force exerted by the user in an axial force allowing the actuation is not total, so that the user must press harder in a device with lateral actuation that it would not be obliged to do if it exerted an axial pressure. The user must either exert a large force, which is not always possible, especially with children or the elderly, or we must provide actuating means large enough to allow easier transfer. This increase in the size of the device however often has a disadvantage whether in terms of cost of manufacture or storage, or even from a point of view of ergonomics of use.

La présente invention a pour but de fournir un dispositif de distribution de produit fluide à actionnement latéral qui ne reproduit pas les inconvénients susmentionnés.The object of the present invention is to provide a side-actuated fluid dispensing device which does not reproduce the aforementioned drawbacks.

Plus particulièrement, la présente invention a pour but de fournir un dispositif de distribution de produit fluide à actionnement latéral qui permet dans tous les cas de réaliser un actionnement latéral au moyen d'une force radiale la plus faible possible.More particularly, the object of the present invention is to provide a lateral-actuated fluid dispenser device which in all cases makes it possible to perform lateral actuation by means of the smallest possible radial force.

La présente invention a également pour but de fournir un tel dispositif de distribution de produit fluide à actionnement latéral qui soit simple et peu coûteux à fabriquer, assembler et utiliser.It is another object of the present invention to provide such a side-actuated fluid dispenser device which is simple and inexpensive to manufacture, assemble and use.

La présente invention a également pour but de fournir un tel dispositif de distribution de produit fluide à actionnement latéral qui soit compact ergonomique et fiable.It is another object of the present invention to provide such a side-operated fluid dispenser device which is ergonomically compact and reliable.

La présente invention a donc pour objet un dispositif de distribution de produit fluide comportant un corps, un réservoir de produit contenant une ou plusieurs doses de produit fluide, un piston adapté à coulisser dans ledit réservoir pour distribuer une dose de produit à chaque actionnement du dispositif, et des moyens d'actionnement pour déplacer ledit piston, caractérisé en ce que ledit dispositif comporte au moins deux éléments d'actionnement latéral répartis autour dudit corps, lesdits éléments d'actionnement latéral étant déplacés simultanément dans une direction environ transversale à l'axe central du dispositif, et coopérant chacun avec un bord périphérique desdits moyens d'actionnement pour exercer une force axiale sur ceux-ci.The present invention therefore relates to a fluid dispenser device comprising a body, a product reservoir containing one or more doses of fluid, a piston adapted to slide in said reservoir to dispense a dose of product each actuation of the device , and actuating means for moving said piston, characterized in that said device comprises at least two lateral actuating elements distributed around said body, said lateral actuating elements being moved simultaneously in a direction approximately transverse to the central axis of the device and each cooperating with a peripheral edge of said actuating means to exert an axial force thereon.

La présente invention a aussi pour objet un dispositif de distribution de produit fluide comportant un corps, un réservoir de produit contenant une ou plusieurs doses de produit fluide, un système de génération d'écoulement d'air, tel qu'une chasse d'air ou un soufflet, relié audit réservoir, et des moyens d'actionnement pour actionner ledit système de génération d'écoulement d'air, caractérisé en ce que ledit dispositif comporte au moins deux éléments d'actionnement latéral répartis autour dudit corps, lesdits éléments d'actionnement latéral étant déplacés simultanément dans une direction environ transversale à l'axe central du dispositif, et coopérant chacun avec un bord périphérique desdits moyens d'actionnement pour exercer une force axiale sur ceux-ci.The present invention also relates to a fluid dispenser device comprising a body, a product reservoir containing one or more doses of fluid, an air flow generation system, such as an air flush or a bellows, connected to said reservoir, and actuating means for actuating said air flow generating system, characterized in that said device comprises at least two lateral actuating elements distributed around said body, said elements of lateral actuation being moved simultaneously in a direction about transverse to the central axis of the device, and each cooperating with a peripheral edge of said actuating means to exert an axial force thereon.

Avantageusement, chaque élément d'actionnement latéral est réalisé sous la forme d'un levier monté pivotant sur ledit corps.Advantageously, each lateral actuating element is made in the form of a lever pivotally mounted on said body.

Avantageusement, chaque levier comporte une bride radiale reliée d'une part au corps du dispositif et supportant d'autre part une aile d'actionnement s'étendant environ axialement vers le fond du dispositif, ladite aile d'actionnement étant déformée élastiquement entre une position de repos et une position d'actionnement lorsque l'utilisateur exerce une force radiale sur elle, et revenant élastiquement vers sa position de repos lorsque l'utilisateur relâche sa force.Advantageously, each lever comprises a radial flange connected on the one hand to the body of the device and on the other hand supporting an actuating wing extending approximately axially towards the bottom of the device, said actuating wing being elastically deformed between a position resting and an actuating position when the user exerts a radial force on it, and returning elastically to its rest position when the user releases its force.

De préférence, lesdits éléments d'actionnement comportent chacun une surface de came coopérant avec le bord périphérique des moyens d'actionnement.Preferably, said actuating elements each comprise a cam surface cooperating with the peripheral edge of the actuating means.

Avantageusement, ladite surface de came est un plan incliné dont la pente est variable pendant le déplacement des éléments d'actionnement, ladite pente étant maximale au début de l'actionnement et minimale en fin d'actionnement, de telle sorte que le transfert de la force d'actionnement radiale exercée par l'utilisateur sur lesdits éléments d'actionnement en une force axiale de déplacement des moyens d'actionnement est maximal en fin d'actionnement.Advantageously, said cam surface is an inclined plane whose slope is variable during the displacement of the actuating elements, said slope being maximum at the beginning of the actuation and minimum at the end of actuation, so that the transfer of the radial actuating force exerted by the user on said actuating elements in an axial force of displacement of the means of actuation is maximum at the end of actuation.

Selon une première variante de réalisation, le réservoir contient une dose unique de produit expulsée en un seul actionnement du dispositif.According to a first variant embodiment, the reservoir contains a single dose of product expelled in a single actuation of the device.

Selon une seconde variante de réalisation, le réservoir contient au moins deux doses, des moyens de fractionnement de dose étant prévus pour fractionner le contenu du réservoir en plusieurs doses.According to a second variant embodiment, the reservoir contains at least two doses, dose-splitting means being provided for fractionating the contents of the reservoir in several doses.

Selon un mode de réalisation de l'invention, lesdits moyens d'actionnement sont reliés audit piston.According to one embodiment of the invention, said actuating means are connected to said piston.

Selon un autre mode de réalisation, lesdits moyens d'actionnement sont formés par ou reliés audit réservoir.According to another embodiment, said actuating means are formed by or connected to said reservoir.

Avantageusement, les moyens de fractionnement de dose sont adaptés à limiter la course du piston dans le réservoir, chaque course partielle correspondant à une dose de produit.Advantageously, the dose splitting means are adapted to limit the stroke of the piston in the reservoir, each partial stroke corresponding to a dose of product.

Avantageusement, lesdits moyens de fractionnement de dose sont réalisés sur les éléments d'actionnement latéral.Advantageously, said dose splitting means are made on the lateral actuating elements.

Avantageusement, lesdits moyens de fractionnement de dose sont réalisés par une encoche dans la surface de came plane d'au moins un élément d'actionnement latéral, ladite encoche coopérant avec le corps pour définir la fin de course d'actionnement desdits éléments d'actionnement.Advantageously, said dose splitting means are made by a notch in the planar cam surface of at least one lateral actuating element, said notch cooperating with the body to define the actuating end of said actuating elements. .

Avantageusement, au moins un élément d'actionnement latéral comporte une encoche dans sa surface de came plane coopérant avec le corps pour définir la fin de course d'actionnement des éléments d'actionnement.Advantageously, at least one lateral actuating element comprises a notch in its plane cam surface cooperating with the body to define the actuating end of the operating elements.

Avantageusement, ledit bord périphérique des moyens d'actionnement est le bord périphérique inférieur.Advantageously, said peripheral edge of the actuating means is the lower peripheral edge.

De préférence, ledit dispositif comporte deux éléments d'actionnement latéral diamétralement opposés l'un à l'autre par rapport audit corps.Preferably, said device comprises two lateral actuating elements diametrically opposed to each other with respect to said body.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante d'un mode de réalisation particulier de celle-ci, faite en référence aux dessins joints, donnés à titre d'exemple non limitatif, et sur lesquels,

  • la figure 1 est une vue schématique en section transversale partiellement éclatée d'un dispositif de distribution de produit fluide selon la présente invention, en position de repos,
  • la figure 2 est une vue similaire à celle de la figure 1, en position d'actionnement du dispositif,
  • la figure 3 est une vue schématique d'un autre mode de réalisation de la présente invention, et
  • la figure 4 est une vue schématique d'encore un autre mode de réalisation de la présente invention.
Other features and advantages of the present invention will become more apparent in the following detailed description of a particular embodiment thereof, with reference to the accompanying drawings, given by way of non-limiting example, and in which,
  • FIG. 1 is a schematic cross-sectional view, partially broken away, of a fluid dispenser device according to the present invention, in the rest position,
  • FIG. 2 is a view similar to that of FIG. 1, in the operating position of the device,
  • FIG. 3 is a schematic view of another embodiment of the present invention, and
  • Figure 4 is a schematic view of yet another embodiment of the present invention.

L'exemple représenté sur les figures est un dispositif de distribution de produit fluide appelé monodose ou unidose, c'est à dire qu'il ne contient qu'une seule dose de produit dans son réservoir. La description détaillée ci-après sera donc faite en référence à ce mode de réalisation particulier de l'invention, mais il est clair que la présente invention ne se limite pas à ce type de dispositif, mais pourrait au contraire également s'appliquer à des dispositifs de type bidose, c'est à dire contenant deux doses, ou même plusieurs doses.The example shown in the figures is a fluid dispensing device called a single dose or unit dose, that is to say it contains only a single dose of product in its reservoir. The detailed description below will therefore be made with reference to this particular embodiment of the invention, but it is clear that the present invention is not limited to this type of device, but could on the contrary also be applied to bidose-type devices, that is to say containing two doses, or even several doses.

En référence à la figure 1, le dispositif de distribution comporte un corps 10 dans lequel est disposé un réservoir de produit fluide 20 relié d'une part à des moyens de distribution 30 et d'autre part à un orifice de distribution 25.With reference to FIG. 1, the dispensing device comprises a body 10 in which is disposed a fluid reservoir 20 connected on the one hand to distribution means 30 and on the other hand to a dispensing orifice 25.

Les moyens de distribution 30 représentés sur les figures 1 et 2 sont réalisés sous la forme d'une chasse d'air qui est adaptée à générer un écoulement d'air comprimé qui, lorsque le pointeau 31 relié à la chasse d'air 30 vient percer la membrane du réservoir 20, expulse la bille d'obturation 22 en entraînant avec lui le produit contenu à l'intérieur du réservoir 20 en direction de l'orifice de distribution 25. Dans ce cas, le produit fluide est généralement une poudre. Pour actionner ce dispositif, il est donc nécessaire de comprimer le piston 40 de la chasse d'air 30, le déplacement axial dudit piston 40 comprimant l'air à l'intérieur de la chambre de la chasse d'air, jusqu'à ce que le pointeau 31 vienne percer la membrane 21 du réservoir 20 libérant ainsi l'écoulement d'air en direction d'abord de la bille d'obturation 22 puis de l'orifice de distribution 25. Cette compression axiale du piston 40, qui forme le moyen d'actionnement de la chasse d'air 30, nécessite une force croissante au fur à mesure qu'on comprime l'air, en raison de la résistance de cet air, jusqu'à ce que cet air comprimé soit libéré lors de l'actionnement.The dispensing means 30 shown in FIGS. 1 and 2 are made in the form of a flush of air which is adapted to generate a flow of compressed air which, when the needle 31 connected to the flush 30 comes pierce the membrane of the reservoir 20, expels the sealing ball 22 by driving with it the product contained inside the reservoir 20 towards the dispensing orifice 25. In this case, the fluid is generally a powder. To actuate this device, it is therefore necessary to compress the piston 40 of the air flush 30, the axial displacement of said piston 40 compressing the air inside the flushing chamber, until that the needle 31 comes to pierce the membrane 21 of the reservoir 20 thus releasing the flow of air by first direction of the sealing ball 22 and the dispensing orifice 25. This axial compression of the piston 40, which forms the flushing actuating means 30, requires an increasing force as and when the air is compressed because of the resistance of this air until this compressed air is released during actuation.

Selon l'invention, le dispositif comporte au moins deux éléments d'actionnement latéral répartis autour dudit corps (10). De préférence, il y a deux éléments d'actionnement 50, 60 qui sont diamétralement opposés par rapport au corps 10. De préférence, ces éléments d'actionnement latéral 50, 60 sont formés sur ledit corps 10, notamment de manière monobloc. Ces éléments d'actionnement latéral 50,60 sont adaptés à coopérer avec un bord 41 dudit piston 40, de préférence au moyen d'une surface de came 55, qui est de préférence formée par un plan incliné. Avantageusement, ledit bord 41 est le bord périphérique externe inférieur.According to the invention, the device comprises at least two lateral actuation elements distributed around said body (10). Preferably, there are two actuating elements 50, 60 which are diametrically opposed relative to the body 10. Preferably, these lateral actuating elements 50, 60 are formed on said body 10, in particular integrally. These lateral actuating members 50,60 are adapted to cooperate with an edge 41 of said piston 40, preferably by means of a cam surface 55, which is preferably formed by an inclined plane. Advantageously, said edge 41 is the lower outer peripheral edge.

Comme représenté sur les dessins, chaque élément d'actionnement latéral 50, 60 est réalisé de manière similaire, et comporte avantageusement une bride radiale 51 qui est reliée d'une part au corps 10 et qui se prolonge d'autre part par une aile 52 s'étendant vers le bas sur les dessins, et qui comporte ladite surface de came respective 55, 65. Comme représenté sur les dessins, cette surface de came 55, 65 de chaque élément d'actionnement latéral 50, 60 coopère avantageusement avec le bord périphérique 41, qui dans ce cas est le bord externe inférieur, et du fait que la surface de came est réalisée sous la forme d'un plan incliné, le point de contact entre l'élément d'actionnement latéral respectif et le moyen d'actionnement formé par le piston 40 reste ledit bord externe 41 tout au long de la course d'actionnement.As shown in the drawings, each lateral actuating element 50, 60 is made in a similar manner, and advantageously comprises a radial flange 51 which is connected on the one hand to the body 10 and which is further extended by a flange 52 extending downwardly in the drawings, and having said respective cam surface 55, 65. As shown in the drawings, this cam surface 55, 65 of each lateral actuating element 50, 60 advantageously cooperates with the edge. device 41, which in this case is the lower outer edge, and the fact that the cam surface is in the form of an inclined plane, the point of contact between the respective lateral actuating element and the means of actuation formed by the piston 40 remains said outer edge 41 throughout the actuating stroke.

Le fait de prévoir au moins deux éléments d'actionnement identiques et actionnés simultanément permet de démultiplier le transfert de force transversale en force axiale sur le piston 40, de sorte que l'utilisateur n'a plus qu'à exercer une force relativement faible sur les éléments d'actionnement latéral pour réaliser l'actionnement du dispositif, même si ce dispositif présente une résistance importante.The fact of providing at least two identical actuating elements and actuated simultaneously makes it possible to reduce the transfer of transverse force in axial force on the piston 40, so that the user only has to exert a relatively weak force on the lateral actuating elements for effecting the actuation of the device, even if this device has a high resistance.

Un aspect particulièrement intéressant de la présente invention est que dans les dispositifs de distribution de produit fluide, notamment ceux comportant une ou deux doses, l'effort d'actionnement est de plus en plus important au cours de la course d'actionnement, pour devenir maximal juste avant la distribution. La présente invention permet de répondre à cette particularité par le fait que la pente de la surface de came 55 respectivement 65 de chaque élément d'actionnement latéral 50 respectivement 60, qui est formée par un plan incliné, varie lors de l'actionnement. Ainsi, dans la position représentée sur la figure 1, la pente est assez importante, ce qui implique un transfert de force relativement faible, alors que dans la position représentée sur la figure 2, la pente est nettement moindre, de sorte que le transfert de la force radiale exercée par l'utilisateur est nettement supérieur à ce moment là. Ainsi, le transfert de force devient maximal en fin de course d'actionnement, au moment où la résistance du dispositif de distribution est également maximale, de sorte que la présente invention permet en fait un actionnement du dispositif au moyen d'une force relativement constante exercée sur les deux éléments d'actionnement latéral 50, 60. La modification de la pente en cours d'actionnement implique un transfert croissant de la force d'actionnement de l'utilisateur, qui compense l'augmentation de la résistance de la chasse d'air dans l'exemple représenté sur les figures.A particularly interesting aspect of the present invention is that in fluid dispensing devices, especially those comprising one or two doses, the actuating force is increasingly important during the actuating stroke, to become maximum just before the distribution. The present invention makes it possible to respond to this feature by the fact that the slope of the cam surface 55 or 65 respectively of each lateral actuating element 50 or 60, which is formed by an inclined plane, varies during actuation. Thus, in the position shown in Figure 1, the slope is quite large, which implies a relatively small force transfer, whereas in the position shown in Figure 2, the slope is significantly lower, so that the transfer of the radial force exerted by the user is much higher at that moment. Thus, the transfer of force becomes maximum at the end of the actuating stroke, at the moment when the resistance of the dispensing device is also maximal, so that the present invention actually allows actuation of the device by means of a relatively constant force exerted on the two lateral actuating elements 50, 60. The modification of the slope during actuation involves an increasing transfer of the actuating force of the user, which compensates for the increase in the resistance of the hunt. in the example shown in the figures.

Dans les modes de réalisation représentés sur les figures 3 et 4, les moyens de distribution 30 sont réalisés sous la forme d'un piston 30 se déplaçant de manière étanche dans le réservoir 20. Les moyens d'actionnement 40 peuvent alors être soit reliés audit piston 30, comme représenté sur la figure 3, soit reliés audit réservoir 20, comme représenté sur la figure 4, pour induire un déplacement axial relatif entre ces deux éléments. Dans ce cas, la situation est identique, à savoir que la résistance est maximale en fin de course d'actionnement, et la présente invention permet également d'y remédier tel que décrit ci-dessus. Le réservoir 20 peut comporter une seule dose de produit, auquel cas cette dose est distribuée en un seul actionnement. En variante, le réservoir peut comporter deux ou plusieurs doses de produit, auquel cas des moyens de fractionnements de doses sont avantageusement prévus pour limiter la course du piston dans le réservoir. Dans ce cas, les moyens d'actionnement peuvent comporter des moyens élastiques de retour en position de repos après chaque actionnement.In the embodiments shown in FIGS. 3 and 4, the dispensing means 30 are made in the form of a piston 30 that moves in a sealed manner in the reservoir 20. The actuating means 40 can then either be connected to said piston 30, as shown in Figure 3, or connected to said reservoir 20, as shown in Figure 4, to induce a relative axial displacement between these two elements. In this case, the situation is identical, namely that the resistance is maximum at the end of the actuating stroke, and the present invention also makes it possible to remedy it as described above. The reservoir 20 may comprise a single dose of product, in which case this dose is dispensed in a single operation. Alternatively, the reservoir may comprise two or more doses of product, in which case dose splitting means are advantageously provided to limit the stroke of the piston in the reservoir. In this case, the actuating means may comprise resilient return means in the rest position after each actuation.

Avantageusement, des moyens de butée 59, 69 sont prévus pour définir la fin de course d'actionnement des éléments d'actionnement. Ces moyens de butée peuvent être réalisés sous la forme d'encoches 59, 69 réalisées dans la surface de came 55, 65 d'au moins un des éléments d'actionnement latéral 50, 60, de préférence dans chacun d'eux. Comme représenté sur la figure 2, ces encoches 59, 69 coopèrent en fin de course d'actionnement avec le bord inférieur du corps 10. Dans l'exemple susmentionné, dans lequel un piston coulisse dans un réservoir comportant deux ou plusieurs doses, ces encoches 59, 69 peuvent également permettre de définir les moyens de fractionnement de doses, en définissant la fin de course d'actionnement du piston dans le réservoir, la dose suivant étant distribuée lors de l'actionnement suivant.Advantageously, stop means 59, 69 are provided to define the actuating end of the actuating elements. These stop means may be in the form of notches 59, 69 made in the cam surface 55, 65 of at least one of the lateral actuating elements 50, 60, preferably in each of them. As shown in FIG. 2, these notches 59, 69 cooperate at the end of the actuating stroke with the lower edge of the body 10. In the abovementioned example, in which a piston slides in a reservoir comprising two or more doses, these notches 59, 69 can also be used to define the dose splitting means, by defining the end of actuation stroke of the piston in the reservoir, the next dose being dispensed at the next actuation.

En plus d'une démultiplication de la force d'actionnement sur le dispositif de distribution de produit fluide, et donc une facilitation de l'actionnement de celui-ci, l'utilisation de deux ou plusieurs éléments d'actionnement latéral de la présente invention fournit une ergonomie améliorée, et en particulier assure une symétrie au moment de l'actionnement, c'est à dire que l'utilisateur exerce environ la même force radiale sur chacun des éléments d'actionnement latéral 50, 60. Il s'ensuit une forte stabilité du dispositif de distribution dans son ensemble à la fois dans la direction axiale, puisque l'utilisateur n'exerce plus de force axiale sur le dispositif, et dans la positon radiale, puisque l'utilisateur exerce la même force de chaque côté du dispositif. Ceci n'était pas le cas avec le dispositif à actionnement latéral connu, dans lequel le dispositif était tenu dans la main et la force exercée seulement au moyen d'un doigt sur un côté du dispositif. Selon l'importance de la force à exercer, ceci pouvait entraîner un déséquilibre au niveau de la force radiale, et donc un déplacement du dispositif dans son ensemble dans la direction de cette force radiale. La présente invention surmonte donc cet inconvénient, qui peut être important lorsque l'orifice de distribution 25 est introduit dans une narine, auquel cas la précision de la distribution et l'absence de risque de blessures est favorisé par la présente invention.In addition to a reduction of the actuating force on the fluid dispensing device, and thus a facilitation of the actuation thereof, the use of two or more lateral actuating elements of the present invention provides improved ergonomics, and in particular provides symmetry at the moment of actuation, that is to say that the user exerts about the same radial force on each of the lateral actuating elements 50, 60. It follows a strong stability of the distribution device as a whole in both the axial direction, since the user no longer exerts axial force on the device, and in the radial position, since the user exerts the same force on each side of the device. This was not the case with the known lateral actuation device, in which the device was held in the hand and the force exerted only by means of a finger on one side of the device. Depending on the magnitude of the force to be exerted, this could cause an imbalance in the radial force, and thus a displacement of the device as a whole in the direction of this radial force. The present invention overcomes this disadvantage, which can be important when the dispensing orifice 25 is introduced into a nostril, in which case the accuracy of the distribution and the absence of risk of injury is promoted by the present invention.

Bien que la présente invention ait été décrite en référence à un mode de réalisation particulier de celle-ci, il est clair qu'elle n'est pas limitée à celui-ci. Comme déjà mentionné, le dispositif n'est pas nécessairement un monodose, mais pourrait être un bidose ou même un dispositif comportant plus que deux doses, du moment que des moyens de fractionnement de doses sont prévus dans le dispositif. Avantageusement, comme expliqué ci-dessus, ces moyens de fractionnement de doses peuvent faire partie des éléments d'actionnement latéral. De même, les moyens de distribution ne sont pas limités à la chasse d'air représentée sur les dessins, mais d'autres moyens de distribution, en particulier un piston coulissant dans le réservoir sont envisageables. D'autre part, le dispositif peut comporter plus de deux éléments d'actionnement latéral, par exemple trois ou quatre, répartis à intervalles réguliers autour du corps du dispositif. De même, le bord périphérique avec lequel coopère chaque élément d'actionnement latéral n'est pas nécessairement le bord inférieur, et n'est pas non plus nécessairement formé par une arête vive, mais pourrait au contraire être un bord incliné correspondant à la surface de came des éléments d'actionnement. D'autres modifications sont également réalisables par l'homme du métier sans sortir du cadre de la présente invention tel que défini par les revendications annexées.Although the present invention has been described with reference to a particular embodiment thereof, it is clear that it is not limited thereto. As already mentioned, the device is not necessarily a single dose, but could be a bidose or even a device with more than two doses, as long as means of fractionation of doses are provided in the device. Advantageously, as explained above, these dose splitting means may be part of the lateral actuating elements. Similarly, the dispensing means are not limited to the air flush shown in the drawings, but other dispensing means, in particular a piston sliding in the reservoir are conceivable. On the other hand, the device may comprise more than two lateral actuation elements, for example three or four, distributed at regular intervals around the body of the device. Likewise, the peripheral edge with which each lateral actuating element cooperates is not necessarily the lower edge, nor is it necessarily formed by a sharp edge, but could on the contrary be an inclined edge corresponding to the surface. cam actuating elements. Other modifications are also possible by those skilled in the art without departing from the scope of the present invention as defined by the appended claims.

Claims (16)

  1. A fluid dispenser device comprising a body (10), a fluid reservoir (20) containing one or a plurality of doses of fluid, a piston (30) designed to sealingly slide in said reservoir so as to dispense a dose of fluid each time the device is actuated, and actuator means (40) for displacing said piston (30), said device being characterized in that it includes at least two laterally-actuated elements (50, 60) distributed around said body (10), said laterally-actuated elements (50, 60) being displaced simultaneously in a direction that is approximately transverse to the central axis of the device, and each co-operating with a peripheral edge (41) of said actuator means (40) so as to exert an axial force thereon.
  2. A fluid dispenser device comprising a body (10), a fluid reservoir (20) containing one or a plurality of doses of fluid, an air-flow generating system (30), such as a puffer or a bellows, connected to said reservoir, and actuator means (40) for actuating said air-flow generating system (30), said device being characterized in that it includes at least two laterally-actuated elements (50, 60) distributed around said body (10), said laterally-actuated elements (50, 60) being displaced simultaneously in a direction that is approximately transverse to the central axis of the device, and each co-operating with a peripheral edge (41) of said actuator means (40) so as to exert an axial force thereon.
  3. A device according to claim 1 or claim 2, in which each laterally-actuated element (50, 60) is made in the form of a lever pivotally mounted on said body (10).
  4. A device according to claim 3, in which each lever (50, 60) includes a radial flange (51, 61) firstly connected to the body (10) of the device, and secondly supporting an actuator blade (52, 62) extending approximately axially towards the bottom of the device, said actuator blade (52, 62) being deformed elastically between a rest position and an actuated position when the user exerts a radial force thereon, and returning resiliently to its rest position when the user withdraws the force.
  5. A device according to any preceding claim, in which said actuator elements (50, 60) each have a cam surface (55, 65) co-operating with the peripheral edge (41) of the actuator means (40).
  6. A device according to claim 5, in which said cam surface (55, 65) is a sloping plane having a slope that varies during displacement of the actuator elements, said slope being at a maximum at the start of actuation and at a minimum at the end of actuation so that the radial actuation force exerted by the user on said actuator elements (50, 60) is transformed into an axial force for displacing the actuator means (40) that is at a maximum at the end of actuation.
  7. A device according to any preceding claim, in which the reservoir (10) contains a single dose of fluid that is expelled in a single actuation of the device.
  8. A device according to any one of claims 1 to 6, in which the reservoir (10) contains at least two doses, dose-measuring means being provided to divide the contents of the reservoir into a plurality of doses.
  9. A device according to claim 7 or claim 8, in which said actuator means (40) are connected to said piston.
  10. A device according to claim 7 or claim 8, in which said actuator means (40) are formed by, or connected to, said reservoir (10).
  11. A device according to claim 8 and either claim 9 or claim 10, in which the dose-measuring means are designed to limit the stroke of the piston (30) in the reservoir (20), each partial stroke corresponding to one dose of fluid.
  12. A device according to claim 11, in which said dose-measuring means are provided on the laterally-actuated elements (50, 60).
  13. A device according to claim 5 and claim 12, in which said dose-measuring means are formed by a notch (59, 69) in the plane cam surface (55, 65) of at least one laterally-actuated element (50, 60), said notch (59, 69) co-operating with the body (10) to define the end of the actuating stroke of said actuator elements (50, 60).
  14. A device according to claim 5 and claim 14, in which at least one laterally-actuated element (50, 60) has a notch (59, 69) in its plane cam surface (55, 65), the notch co-operating with the body (10) to define the end of the actuating stroke of the actuator elements (50, 60).
  15. A device according to any preceding claim, in which said peripheral edge (41) of the actuator means (40) is the bottom peripheral edge.
  16. A device according to any preceding claim, in which said device includes two laterally-actuated elements (50, 60) that are diametrically opposite each other about said body (10).
EP02800588A 2001-10-04 2002-10-01 Laterally-actuated fluid dispensing device Expired - Lifetime EP1448312B1 (en)

Applications Claiming Priority (3)

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FR0112769A FR2830522B1 (en) 2001-10-04 2001-10-04 SIDE-OPERATED FLUID PRODUCT DISPENSING DEVICE
FR0112769 2001-10-04
PCT/EP2002/010993 WO2003031077A1 (en) 2001-10-04 2002-10-01 Laterally-actuated fluid dispensing device

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EP1448312B1 true EP1448312B1 (en) 2006-08-23

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EP (1) EP1448312B1 (en)
JP (1) JP4105629B2 (en)
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DE60214223D1 (en) 2006-10-05
EP1448312A1 (en) 2004-08-25
FR2830522B1 (en) 2004-02-13
JP4105629B2 (en) 2008-06-25
DE60214223T2 (en) 2007-07-19
WO2003031077A1 (en) 2003-04-17
FR2830522A1 (en) 2003-04-11
CN1308091C (en) 2007-04-04
US7353971B2 (en) 2008-04-08
CN1564715A (en) 2005-01-12
JP2005504632A (en) 2005-02-17

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