EP0642990A1 - Device for dispensing a fluid product - Google Patents

Device for dispensing a fluid product Download PDF

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Publication number
EP0642990A1
EP0642990A1 EP94401892A EP94401892A EP0642990A1 EP 0642990 A1 EP0642990 A1 EP 0642990A1 EP 94401892 A EP94401892 A EP 94401892A EP 94401892 A EP94401892 A EP 94401892A EP 0642990 A1 EP0642990 A1 EP 0642990A1
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EP
European Patent Office
Prior art keywords
lever
dispensing
head
axis
pusher
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94401892A
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German (de)
French (fr)
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EP0642990B1 (en
Inventor
Philippe Renault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Publication date
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Publication of EP0642990B1 publication Critical patent/EP0642990B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
    • B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • B65D83/205—Actuator caps, or peripheral actuator skirts, attachable to the aerosol container
    • B65D83/206—Actuator caps, or peripheral actuator skirts, attachable to the aerosol container comprising a cantilevered actuator element, e.g. a lever pivoting about a living hinge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1056—Actuation means comprising rotatable or articulated levers
    • B05B11/1057—Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user

Definitions

  • the present invention relates to a device for dispensing a fluid product, that is to say in the form of a liquid or a more or less viscous paste or cream.
  • the fluid product can be dispensed in sprayed form, that is to say in the form of fine droplets, spray or aerosol or in the form of foam.
  • Many devices are known for dispensing a fluid product in spray form or foam. They generally comprise a container containing the fluid product to be dispensed, this container possibly being pressurized or not, and being provided with a device for dispensing the product (valve or pump).
  • This distribution member conventionally contains a part movable in translation which is actuated by pressing.
  • the movable part of the dispensing member generally consists of a dispensing head comprising a channel, a product dispensing nozzle and a pusher on which is pressed to push in the movable part of the dispensing member.
  • the user can act directly manually on the dispensing head but, to reduce the effort necessary to actuate the dispensing member, it is known to use a lever.
  • the dispensing head and the container are generally capped with a cover on which the lever is articulated, the articulation being able to be constituted by a film hinge, the lever then being molded in one piece with the cover, or be constituted by another system, the lever and the cover forming two separate parts.
  • Said lever is provided with a support element on the plunger of the dispensing head.
  • the pusher preferably has a flat upper surface, which is generally perpendicular to the axis of translation of the moving part. This pusher may include guide elements for the support element so as to prevent any lateral movement of said support element.
  • Said support element is located between the articulation of the lever on the cover and the free end of the lever on which the user presses.
  • An opening is, of course, made in the cover, vis-à-vis the spray nozzle of the dispensing head.
  • Distribution devices of this type are, for example, described in EP-A 0 402 436, FR-A 2 319 540 and FR-A 2 675 403.
  • the support elements were constituted either by a needle, or by a cam having in section, in the plane of rotation, the shape of a segment of a circle, or by a sphere or a sphere cap.
  • This type of support element has the following drawback: the result of the forces applied by the user on the lever, and the frictional forces of the elements of the dispensing member on the sprayer itself, causes a deformation of the movable part of the dispensing member, which under the effect of this force no longer slides in a plane corresponding to the axis of the sprayer itself.
  • the force fulcrum slides on the plunger of the dispensing head and there is a modification of the support conditions.
  • FIG. 1 a device is shown comprising a movable part 1 moving in translation along the axis XX in a tubular element 2 coaxial.
  • a lever 3 is provided with a support element 4 constituted by a cam having in section the shape of a segment of a circle.
  • the support element 4 presses on the surface perpendicular to the axis XX of translation of the movable part 1 forming a pusher.
  • the theoretical force exerted Ft is perpendicular to the straight line joining the fulcrum to the articulation point, and it therefore forms an angle ⁇ with the axis XX.
  • the object of the invention is, in particular, to remedy these drawbacks.
  • cam support element a cam having in section, in a mean plane of rotation of the lever, a shape such as the force exerted. by the user is transmitted to the surface of the dispensing head at a constant point, located on the axis of translation of the movable part of the dispensing member or on a parallel to said axis of translation.
  • the present invention therefore relates to a device for dispensing a fluid product comprising a container provided with a dispensing member comprising a dispensing head movable in translation and provided with a pusher, and a cover covering the container. and the dispensing head, cover on which a lever is articulated, the lever carrying a support element capable of pressing on the pusher of the dispensing head to depress the dispensing head of the dispensing member characterized by the fact that the support element has in section, in a plane of rotation of the lever, a shape such that a force applied to the end of the lever is transmitted at a constant point of the pusher of the dispensing head and that at during the insertion of the head the point of application of the force moves parallel to the axis of translation of the head of the dispensing member.
  • the bearing element is a cam whose cross section in a plane of rotation of the lever is limited by an involute of a circle centered on the axis of articulation of the lever, this axis of articulation being located at -above the plane on which the pressing force is exerted on the pusher.
  • the involute of a circle is advantageously that which is tangent to the plunger of the dispensing head when the lever is in the rest position.
  • the point of application of the force is preferably located in the center of the plunger of the dispensing head, on the axis of translation of the movable head of the dispensing member. Under these conditions, the point of application of the force is located on the axis of translation of the movable part of the dispensing member. The deformations are thus reduced.
  • the axis of the articulation between the lever and the cover is formed by a film hinge.
  • the lever and the cover are molded in one piece. It is also possible to conform the lever and the cover into two separate parts, the articulation being formed by any conventional arrangement, for example by engagement of two pins made on the lever in corresponding recesses of the cover.
  • Figure 2 shows in partial section an assembly 101 according to the invention comprising a container 102 (partially shown) on which is fixed a pump 103 whose movable part consists of a dispensing head 104 provided with a spray nozzle 105
  • the container 102 and the dispensing head 104 are capped by a cover 106 provided with a lever 107 fixed to the cover 106 by a film hinge 108.
  • the film hinge 108 is linear and is located in the vicinity of the connection point. between the peripheral skirt 111 of the cover fixed by snap-fastening on the container 102 and the upper surface of the cover.
  • the lever 107 is formed by a cut in the upper surface of the cover.
  • the lever 107 carries a support element 109, which is constituted by a cam whose lateral surfaces are parallel to the median plane of the lever and are slightly spaced from one another.
  • the bearing surface 109 a of the element 109 is cylindrical, of generatrices parallel to the articulation axis formed by the film hinge 108. In other words, the direction of the generatrices is perpendicular to the plane of FIG. 2.
  • the section of the surface 109 a by the median plane of the lever 107, orthogonal to the generatrices, is an involute of the circle C, centered on the film hinge 108 and tangent to the axis XX of the head 104.
  • the upper surface 104 a of the head 104 is planar, orthogonal to the axis XX and is limited by a circular contour centered on the said axis XX.
  • the head 104 is cylindrical of revolution.
  • the upper surface 104 is a pusher.
  • the involute 109a of the circle C is selected so as to be tangent to the center of the pusher 104, at a point P, on the axis XX when the assembly is at rest.
  • the axis of rotation of the lever 107 is located above the plane of the plunger 104, that is to say the side of said pusher 104 has opposite to the container 102.
  • Lateral guide means can be provided between the cam 109 and the head 104. It can be, for example, a groove or a shoulder (not shown), provided on the pusher 104 a , with which cooperates the cam 109 for holding in a direction perpendicular to the plane of FIG. 2.
  • the cover 106 is provided with an opening 110 arranged opposite the nozzle 105 so as to allow the jet of sprayed fluid product to pass.
  • FIG. 3 makes it possible to understand the operation of the assembly and the mode of action of the cam 109 in the involute of a circle.
  • the profile 109 a is the involute of the circle C, centered on the axis of articulation 108 and tangent to the axis XX of the pusher. At rest, the involute 109 a is tangent to the face 104 a , at its center P.
  • the friction between the parts is reduced and the sliding conditions of the head 104 are improved.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

Device for dispensing a fluid product comprising a container (102) fitted with a dispensing means (103) comprising a translationally movable dispensing head (104) with a push piece (104a), and a cap (106) that fits over the container (102) and dispensing head (104), hinged to which cap is a lever (107) supporting a pressure component (109) designed to press on the push piece (104a) of the dispensing head (104) in order to depress the dispensing head (104). The pressure component (109) is of such a shape, in section in a plane of rotation of the lever (107), that a force applied to the end of the lever (107) is transmitted to a constant point (P) on the push piece of the dispensing head (104) and that, as the head (104) is depressed, the point of application (P) of the force is displaced parallel with the axis of translation (X-X) of the head (104) of the dispensing means. The pressure component (109) is in the shape more particularly of an involute of a circle (C). <IMAGE>

Description

La présente invention concerne un dispositif de distribution d'un produit fluide, c'est-à-dire sous forme de liquide ou de pâte ou crème plus ou moins visqueuse. Le produit fluide peut être distribué sous forme pulvérisée, c'est-à-dire sous forme de fines gouttelettes, de spray ou d'aérosol ou sous forme de mousse.The present invention relates to a device for dispensing a fluid product, that is to say in the form of a liquid or a more or less viscous paste or cream. The fluid product can be dispensed in sprayed form, that is to say in the form of fine droplets, spray or aerosol or in the form of foam.

On connait de nombreux dispositifs pour la distribution d'un produit fluide sous forme pulvérisée ou de mousse. Ils comprennent généralement un récipient contenant le produit fluide à distribuer, ce récipient pouvant être pressurisé ou non, et étant muni d'un organe de distribution du produit (valve ou pompe). Cet organe de distribution contient classiquement une partie mobile en translation qui est actionnée par enfoncement. La partie mobile de l'organe de distribution est généralement constituée d'une tête de distribution comportant un canal, une buse de distribution du produit et un poussoir sur lequel on appuie pour enfoncer la partie mobile de l'organe de distribution. L'utilisateur peut agir directement manuellement sur la tête de distribution mais, pour diminuer l'effort nécessaire pour actionner l'organe de distribution, il est connu d'utiliser un levier. Dans ce cas, la tête de distribution et le récipient sont généralement coiffés d'un capot sur lequel est articulé le levier, l'articulation pouvant être constituée par une charnière-film, le levier étant alors moulé d'une pièce avec le capot, ou être constitué par un autre système, le levier et le capot formant deux pièces distinctes. Ledit levier est muni d'un élément d'appui sur le poussoir de la tête de distribution. Le poussoir a, de préférence, une surface supérieure plane, qui est généralement perpendiculaire à l'axe de translation de la pièce mobile. Ce poussoir peut comporter des éléments formant guide pour l'élément d'appui de façon à empêcher tout déplacement latéral dudit élément d'appui. Ledit élément d'appui est situé entre l'articulation du levier sur le capot et l'extrémité libre du levier sur laquelle appuie l'utilisateur. Une ouverture est, bien entendu, ménagée dans le capot, au vis-à-vis de la buse de pulvérisation de la tête de distribution. Des dispositifs de distribution de ce type sont, par exemple, décrits dans EP-A 0 402 436, FR-A 2 319 540 et FR-A 2 675 403.Many devices are known for dispensing a fluid product in spray form or foam. They generally comprise a container containing the fluid product to be dispensed, this container possibly being pressurized or not, and being provided with a device for dispensing the product (valve or pump). This distribution member conventionally contains a part movable in translation which is actuated by pressing. The movable part of the dispensing member generally consists of a dispensing head comprising a channel, a product dispensing nozzle and a pusher on which is pressed to push in the movable part of the dispensing member. The user can act directly manually on the dispensing head but, to reduce the effort necessary to actuate the dispensing member, it is known to use a lever. In this case, the dispensing head and the container are generally capped with a cover on which the lever is articulated, the articulation being able to be constituted by a film hinge, the lever then being molded in one piece with the cover, or be constituted by another system, the lever and the cover forming two separate parts. Said lever is provided with a support element on the plunger of the dispensing head. The pusher preferably has a flat upper surface, which is generally perpendicular to the axis of translation of the moving part. This pusher may include guide elements for the support element so as to prevent any lateral movement of said support element. Said support element is located between the articulation of the lever on the cover and the free end of the lever on which the user presses. An opening is, of course, made in the cover, vis-à-vis the spray nozzle of the dispensing head. Distribution devices of this type are, for example, described in EP-A 0 402 436, FR-A 2 319 540 and FR-A 2 675 403.

Dans les dispositifs proposés jusqu'à présent, les éléments d'appui étaient constitués soit par un pointeau, soit par une came ayant en section, dans le plan de rotation, la forme d'un segment de cercle, soit par une sphère ou une calotte de sphère. Ce type d'élément d'appui comporte l'inconvénient suivant : la résultante des forces, appliquées par l'utilisateur sur le levier, et des forces de frottement des éléments de l'organe de distribution sur le pulvérisateur lui-même, entraîne une déformation de la partie mobile de l'organe de distribution, qui sous l'effet de cette force ne coulisse plus dans un plan correspondant à l'axe du pulvérisateur lui-même. De plus, le point d'appui de la force glisse sur le poussoir de la tête de distribution et il y a modification des conditions d'appui.In the devices proposed so far, the support elements were constituted either by a needle, or by a cam having in section, in the plane of rotation, the shape of a segment of a circle, or by a sphere or a sphere cap. This type of support element has the following drawback: the result of the forces applied by the user on the lever, and the frictional forces of the elements of the dispensing member on the sprayer itself, causes a deformation of the movable part of the dispensing member, which under the effect of this force no longer slides in a plane corresponding to the axis of the sprayer itself. In addition, the force fulcrum slides on the plunger of the dispensing head and there is a modification of the support conditions.

Ces inconvénients sont illustrés schématiquement sur la figure 1 annexée. Sur cette figure 1, est représenté un dispositif comportant une pièce mobile 1 se déplaçant en translation selon l'axe X-X dans un élément tubulaire 2 coaxial. Un levier 3 est muni d'un élément d'appui 4 constitué par une came ayant en section la forme d'un segment de cercle. L'élément d'appui 4 appuie sur la surface la perpendiculaire à l'axe X-X de translation de la pièce mobile 1 formant poussoir. La force théorique exercée Ft est perpendiculaire à la droite joignant le point d'appui au point d'articulation, et elle fait, par conséquent, un angle α avec l'axe X-X. De plus, il est nécessaire de tenir compte des forces de frottement Ff et la force résultante transmise F fait, avec l'axe X-X, un angle supérieur à l'angle α. La force de descente Fd est faible. L'élément mobile 1 a donc tendance à pivoter et à se déformer. Lors de son enfoncement dans l'élément tubulaire 2, l'élément mobile 1 va donc frotter contre les parois internes de l'élément tubulaire 2 et il est possible que ce frottement aille jusqu'à bloquer l'élément mobile 1. Les différents éléments de l'organe de distribution deviennent fragiles, car ils sont soumis à des déformations chaque fois que l'organe de distribution est actionné. En outre, le point d'appui de la came 4 sur la surface 1a se déplace lors de l'enfoncement du poussoir, ce qui modifie les conditions d'application de la force sur l'organe de distribution en fonction de l'abaissement du levier.These drawbacks are illustrated schematically in Figure 1 attached. In this figure 1, a device is shown comprising a movable part 1 moving in translation along the axis XX in a tubular element 2 coaxial. A lever 3 is provided with a support element 4 constituted by a cam having in section the shape of a segment of a circle. The support element 4 presses on the surface perpendicular to the axis XX of translation of the movable part 1 forming a pusher. The theoretical force exerted Ft is perpendicular to the straight line joining the fulcrum to the articulation point, and it therefore forms an angle α with the axis XX. In addition, it is necessary to take account of the friction forces Ff and the resulting transmitted force F makes, with the axis XX, an angle greater than the angle α. The descent force Fd is low. The mobile element 1 therefore tends to pivot and to deform. When it is inserted into the tubular element 2, the mobile element 1 will therefore rub against the internal walls of the tubular element 2 and it is possible that this friction will go so far as to block the mobile element 1. The different elements of the dispensing member become fragile, because they are subjected to deformations each time the dispensing member is actuated. In addition, the fulcrum of the cam 4 on the surface 1a moves upon depression of the plunger, which changes the conditions of application of the force on the dispensing member according to the lowering lever.

En résumé, les inconvénients évoqués conduisent à une déformation globale de l'ensemble des pièces de l'organe de distribution, pouvant entraîner des frottements excessifs, des blocages des différentes pièces coulissantes, et surtout une fragilisation globale de l'organe de distribution.In summary, the drawbacks mentioned lead to an overall deformation of all the parts of the distribution, which can cause excessive friction, blockages of the various sliding parts, and above all overall weakening of the dispensing member.

L'invention a pour but, notamment, de remédier à ces inconvénients.The object of the invention is, in particular, to remedy these drawbacks.

Selon la présente invention, on a trouvé qu'on peut éviter les inconvénients décrits ci-dessus en utilisant comme élément d'appui du levier une came ayant en section, dans un plan moyen de rotation du levier, une forme telle que la force exercée par l'utilisateur soit transmise à la surface de la tête de distribution en un point constant, situé sur l'axe de translation de la partie mobile de l'organe de distribution ou sur une parallèle audit axe de translation.According to the present invention, it has been found that the drawbacks described above can be avoided by using as cam support element a cam having in section, in a mean plane of rotation of the lever, a shape such as the force exerted. by the user is transmitted to the surface of the dispensing head at a constant point, located on the axis of translation of the movable part of the dispensing member or on a parallel to said axis of translation.

La présente invention a, par conséquent, pour objet un dispositif de distribution d'un produit fluide comportant un récipient muni d'un organe de distribution comprenant une tête de distribution mobile en translation et munie d'un poussoir, et un capot coiffant le récipient et la tête de distribution, capot sur lequel est articulé un levier, le levier portant un élément d'appui susceptible d'appuyer sur le poussoir de la tête de distribution pour enfoncer la tête de distribution de l'organe de distribution caractérisé par le fait que l'élément d'appui a en section, dans un plan de rotation du levier, une forme telle qu'une force appliquée à l'extrémité du levier soit transmise en un point constant du poussoir de la tête de distribution et qu'au cours de l'enfoncement de la tête le point d'application de la force se déplace parallèlement à l'axe de translation de la tête de l'organe de distribution.The present invention therefore relates to a device for dispensing a fluid product comprising a container provided with a dispensing member comprising a dispensing head movable in translation and provided with a pusher, and a cover covering the container. and the dispensing head, cover on which a lever is articulated, the lever carrying a support element capable of pressing on the pusher of the dispensing head to depress the dispensing head of the dispensing member characterized by the fact that the support element has in section, in a plane of rotation of the lever, a shape such that a force applied to the end of the lever is transmitted at a constant point of the pusher of the dispensing head and that at during the insertion of the head the point of application of the force moves parallel to the axis of translation of the head of the dispensing member.

De préférence, l'élément d'appui est une came dont la section dans un plan de rotation du levier est limitée par une développante d'un cercle centré sur l'axe d'articulation du levier, cet axe d'articulation étant situé au-dessus du plan sur lequel s'exerce la force d'appui sur le poussoir. La développante de cercle est avantageusement celle qui est tangente au poussoir de la tête de distribution lorsque le levier est en position de repos.Preferably, the bearing element is a cam whose cross section in a plane of rotation of the lever is limited by an involute of a circle centered on the axis of articulation of the lever, this axis of articulation being located at -above the plane on which the pressing force is exerted on the pusher. The involute of a circle is advantageously that which is tangent to the plunger of the dispensing head when the lever is in the rest position.

Le point d'application de la force est, de préférence, situé au centre du poussoir de la tête de distribution, sur l'axe de translation de la tête mobile de l'organe de distribution. Dans ces conditions, le point d'application de la force est situé sur l'axe de translation de la pièce mobile de l'organe- de distribution. On en réduit ainsi les déformations.The point of application of the force is preferably located in the center of the plunger of the dispensing head, on the axis of translation of the movable head of the dispensing member. Under these conditions, the point of application of the force is located on the axis of translation of the movable part of the dispensing member. The deformations are thus reduced.

Avantageusement, l'axe de l'articulation entre le levier et le capot est formé par une charnière-film. Dans ce cas, le levier et le capot sont moulés en monobloc. Il est possible également de conformer le levier et le capot en deux pièces distinctes, l'articulation étant formée par toute disposition classique, par exemple par engagement de deux tourillons réalisés sur le levier dans des évidements correspondants du capot.Advantageously, the axis of the articulation between the lever and the cover is formed by a film hinge. In this case, the lever and the cover are molded in one piece. It is also possible to conform the lever and the cover into two separate parts, the articulation being formed by any conventional arrangement, for example by engagement of two pins made on the lever in corresponding recesses of the cover.

La description donnée ci-dessous d'un mode de réalisation d'un ensemble selon l'invention, à titre illustratif et non limitatif, en référence au dessin annexé, permettra de mieux comprendre l'invention.The description given below of an embodiment of an assembly according to the invention, by way of illustration and not limitation, with reference to the appended drawing, will allow a better understanding of the invention.

Sur ce dessin :

  • la figure 1 est une vue schématique en coupe d'un ensemble de distribution selon l'art antérieur dont la description a été donnée ci-dessus,
  • la figure 2 est une vue partielle en coupe d'un ensemble de distribution selon l'invention, en position de repos,
  • la figure 3 est un schéma illustrant le fonctionnement d'un ensemble de distribution selon l'invention.
On this drawing :
  • FIG. 1 is a schematic sectional view of a dispensing assembly according to the prior art, the description of which has been given above,
  • FIG. 2 is a partial sectional view of a dispensing assembly according to the invention, in the rest position,
  • Figure 3 is a diagram illustrating the operation of a distribution assembly according to the invention.

La figure 2 représente en coupe partielle un ensemble 101 selon l'invention comportant un récipient 102 (partiellement représenté) sur lequel est fixée une pompe 103 dont la partie mobile est constituée d'une tête de distribution 104 munie d'une buse de pulvérisation 105. Le récipient 102 et la tête de distribution 104 sont coiffés par un capot 106 muni d'un levier 107 fixé au capot 106 par une charnière-film 108. La charnière-film 108 est linéaire et elle est située au voisinage du point de raccordement entre la jupe périphérique 111 du capot fixée par claquage sur le récipient 102 et la surface supérieure du capot. Le levier 107 est formé par une découpure dans la surface supérieure du capot.Figure 2 shows in partial section an assembly 101 according to the invention comprising a container 102 (partially shown) on which is fixed a pump 103 whose movable part consists of a dispensing head 104 provided with a spray nozzle 105 The container 102 and the dispensing head 104 are capped by a cover 106 provided with a lever 107 fixed to the cover 106 by a film hinge 108. The film hinge 108 is linear and is located in the vicinity of the connection point. between the peripheral skirt 111 of the cover fixed by snap-fastening on the container 102 and the upper surface of the cover. The lever 107 is formed by a cut in the upper surface of the cover.

Le levier 107 porte un élément d'appui 109, qui est constitué par une came dont les surfaces latérales sont parallèles au plan médian du levier et sont faiblement écartées l'une de l'autre. La surface d'appui 109a de l'élément 109 est cylindrique, de génératrices parallèles à l'axe d'articulation formé par la charnière-film 108. Autrement dit, la direction des génératrices est perpendiculaire au plan de la figure 2. La section de la surface 109a, par le plan médian du levier 107, orthogonal aux génératrices, est une développante du cercle C, centré sur la charnière-film 108 et tangent à l'axe X-X de la tête 104.The lever 107 carries a support element 109, which is constituted by a cam whose lateral surfaces are parallel to the median plane of the lever and are slightly spaced from one another. The bearing surface 109 a of the element 109 is cylindrical, of generatrices parallel to the articulation axis formed by the film hinge 108. In other words, the direction of the generatrices is perpendicular to the plane of FIG. 2. The section of the surface 109 a , by the median plane of the lever 107, orthogonal to the generatrices, is an involute of the circle C, centered on the film hinge 108 and tangent to the axis XX of the head 104.

La surface supérieure 104a de la tête 104 est plane, orthogonale à l'axe X-X et est limitée par un contour circulaire centré sur ledit axe X-X. La tête 104 est cylindrique de révolution. La surface supérieure 104a constitue un poussoir.The upper surface 104 a of the head 104 is planar, orthogonal to the axis XX and is limited by a circular contour centered on the said axis XX. The head 104 is cylindrical of revolution. The upper surface 104 is a pusher.

La développante 109a du cercle C est choisie de manière à être tangente au centre du poussoir 104a, en un point P, sur l'axe X-X lorsque l'ensemble est au repos.The involute 109a of the circle C is selected so as to be tangent to the center of the pusher 104, at a point P, on the axis XX when the assembly is at rest.

L'axe de rotation du levier 107, constitué par la charnière-film 108, est situé au-dessus du plan du poussoir 104a, c'est-à-dire du côté dudit poussoir 104a opposé au récipient 102.The axis of rotation of the lever 107, consisting of the film hinge 108, is located above the plane of the plunger 104, that is to say the side of said pusher 104 has opposite to the container 102.

Des moyens de guidage latéral peuvent être prévus entre la came 109 et la tête 104. Il peut s'agir, par exemple, d'une rainure ou d'un épaulement (non représenté), prévu sur le poussoir 104a, avec lequel coopère la came 109 pour un maintien suivant une direction perpendiculaire au plan de la figure 2.Lateral guide means can be provided between the cam 109 and the head 104. It can be, for example, a groove or a shoulder (not shown), provided on the pusher 104 a , with which cooperates the cam 109 for holding in a direction perpendicular to the plane of FIG. 2.

Le capot 106 est muni d'une ouverture 110 disposée en vis-à-vis de la buse 105 de façon à permettre le passage du jet de produit fluide pulvérisé.The cover 106 is provided with an opening 110 arranged opposite the nozzle 105 so as to allow the jet of sprayed fluid product to pass.

Le schéma de la figure 3 permet de comprendre le fonctionnement de l'ensemble et le mode d'action de la came 109 en développante de cercle.The diagram in FIG. 3 makes it possible to understand the operation of the assembly and the mode of action of the cam 109 in the involute of a circle.

Sur la figure 3, le levier 107 a été représenté en trait plein en position de repos, et en tirets en position d'enfoncement maximum.In FIG. 3, the lever 107 has been shown in solid lines in the rest position, and in dashes in the maximum insertion position.

On rappelle que le profil 109a est la développante du cercle C, centré sur l'axe d'articulation 108 et tangent à l'axe X-X du poussoir. Au repos, la developpante 109a est tangente à la face 104a, en son centre P.Recall that the profile 109 a is the involute of the circle C, centered on the axis of articulation 108 and tangent to the axis XX of the pusher. At rest, the involute 109 a is tangent to the face 104 a , at its center P.

Lorsque le levier 107 est enfoncé, pour tourner dans le sens d'horloge autour de l'axe d'articulation 108, la came 109 s'abaisse et enfonce la tête 104. Le profil 109a en développante de cercle reste en contact avec le point constant P (centre) de la face 104 a. Ce point P se déplace suivant l'axe X-X de la tête 104, auquel est tangent le cercle C.When the lever 107 is pressed, to rotate clockwise around the hinge pin 108, the cam 109 is lowered and presses the head 104. The profile 109 a in the involute of the circle remains in contact with the constant point P (center) of the face 104 a . This point P moves along the axis XX of the head 104, to which the circle C is tangential.

Les frottements entre les pièces se trouvent réduits et les conditions de coulissement de la tête 104 sont améliorées.The friction between the parts is reduced and the sliding conditions of the head 104 are improved.

Claims (7)

1 - Dispositif de distribution d'un produit fluide comportant un récipient (102) muni d'un organe de distribution (103) comprenant une tête de distribution (104) mobile en translation, et munie d'un poussoir (104a), et un capot (106) coiffant le récipient (102) et la tête de distribution (104), capot sur lequel est articulé un levier (107), le levier portant un élément d'appui (109) susceptible d'appuyer sur le poussoir (104a) de la tête de distribution (104) pour enfoncer la tête de distribution (104) de l'organe de distribution (103), caractérisé par le fait que l'élément d'appui a, en section dans un plan de rotation du levier (107), une forme telle qu'une force appliquée à l'extrémité du levier (107) soit transmise en un point constant (P) du poussoir (104a) de la tête de distribution (104) et qu'au cours de l'enfoncement de la tête (104), le point d'application (P) de la force se déplace parallèlement à l'axe de translation (X-X) de la tête (104) de l'organe de distribution. 1 - Device for dispensing a fluid product comprising a container (102) provided with a dispensing member (103) comprising a dispensing head (104) movable in translation, and provided with a pusher (104a), and a cover (106) covering the container (102) and the dispensing head (104), cover on which a lever (107) is articulated, the lever carrying a support element (109) capable of pressing on the pusher (104a ) of the dispensing head (104) for driving in the dispensing head (104) of the dispensing member (103), characterized in that the support element has, in section in a plane of rotation of the lever (107), a shape such that a force applied to the end of the lever (107) is transmitted at a constant point (P) of the pusher (104a) of the dispensing head (104) and that during the insertion of the head (104), the point of application (P) of the force moves parallel to the axis of translation (XX) of the head (104) of the member of distribution. 2 - Dispositif selon la revendication 1, caractérisé par le fait que l'élément d'appui (109) est une came dont la section dans un plan de rotation du levier (107) est limité par une développante (109a) d'un cercle (C) centré sur l'axe d'articulation (108) du levier (107), cet axe d'articulation étant situé au-dessus du plan sur lequel s'exerce la force d'appui sur le poussoir. 2 - Device according to claim 1, characterized in that the support element (109) is a cam whose section in a plane of rotation of the lever (107) is limited by an involute (109a) of a circle (C) centered on the articulation axis (108) of the lever (107), this articulation axis being situated above the plane on which the pressing force is exerted on the pusher. 3 - Dispositif selon la revendication 2, caractérisé par le fait que le cercle (C) est tangent à l'axe (X-X) de la tête (104). 3 - Device according to claim 2, characterized in that the circle (C) is tangent to the axis (XX) of the head (104). 4 - Dispositif selon la revendication 2 ou 3, caractérisé par le fait que la développante de cercle (109a) est tangente au poussoir (104a) de la tête de distribution (104) lorsque le levier (107) est en position de repos. 4 - Device according to claim 2 or 3, characterized in that the involute of circle (109a) is tangent to the pusher (104a) of the dispensing head (104) when the lever (107) is in the rest position. 5 - Dispositif selon l'ensemble des revendications 3 et 4, caractérisé par le fait que le point d'application (P) de la force est situé au centre du poussoir (104a) de la tête de distribution (104), sur l'axe de translation (X-X) de la tête mobile (104) de l'organe de distribution. 5 - Device according to all of claims 3 and 4, characterized in that the point of application (P) of the force is located in the center of the pusher (104a) of the dispensing head (104), on the translation axis (XX) of the movable head (104) of the dispensing member. 6 - Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que l'axe d'articulation (108) du levier (107) est constitué par une charnière-film. 6 - Device according to one of claims 1 to 5, characterized in that the articulation axis (108) of the lever (107) is constituted by a film hinge. 7 - Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que le levier (107) et le capot (106) forment deux pièces distinctes articulables entre elles. 7 - Device according to one of claims 1 to 5, characterized in that the lever (107) and the cover (106) form two separate parts articulated together.
EP94401892A 1993-09-15 1994-08-25 Device for dispensing a fluid product Expired - Lifetime EP0642990B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9310988A FR2710035B1 (en) 1993-09-15 1993-09-15 Device for dispensing a fluid product.
FR9310988 1993-09-15

Publications (2)

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EP0642990A1 true EP0642990A1 (en) 1995-03-15
EP0642990B1 EP0642990B1 (en) 1996-10-02

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EP94401892A Expired - Lifetime EP0642990B1 (en) 1993-09-15 1994-08-25 Device for dispensing a fluid product

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US (1) US5431313A (en)
EP (1) EP0642990B1 (en)
DE (1) DE69400630T2 (en)
ES (1) ES2092384T3 (en)
FR (1) FR2710035B1 (en)

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US8893927B2 (en) 2004-05-24 2014-11-25 Pur Water Purification Products, Inc. Cartridge for an additive dispensing system
US8556127B2 (en) 2004-05-24 2013-10-15 Pur Water Purification Products, Inc. Additive dispensing system for a refrigerator
US7670479B2 (en) * 2004-05-24 2010-03-02 PUR Water Purification, Inc. Fluid container having an additive dispensing system
US9315314B2 (en) * 2014-06-27 2016-04-19 Westrock Dispensing Systems, Inc. Dual actuated aerosol devices
FR3081300A1 (en) * 2018-05-23 2019-11-29 L'oreal DISPENSING HEAD OF A COSMETIC COMPOSITION, DEVICE AND METHOD FOR DISPENSING THE SAME

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US8881944B2 (en) 2008-06-30 2014-11-11 S.C. Johnson & Son, Inc. Overcap for and a method of actuating a volatile material dispenser

Also Published As

Publication number Publication date
FR2710035A1 (en) 1995-03-24
FR2710035B1 (en) 1995-11-17
DE69400630T2 (en) 1997-05-15
US5431313A (en) 1995-07-11
DE69400630D1 (en) 1996-11-07
EP0642990B1 (en) 1996-10-02
ES2092384T3 (en) 1996-11-16

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