EP3375531A1 - Dispensing device for a fluid and manufacturing method of such a dispensing device - Google Patents

Abstract

Device for dispensing a fluid, comprising a supply duct, a distribution duct arranged to conduct a fluid in a dispensing direction, a deformable pouch, a supply valve (4), a dispensing valve (5). According to the invention: the dispensing valve (5) is held in the device by clamping its connecting element (11a) between internal walls of the distribution duct, and / or - The supply valve (4) is held in the device by clamping its connecting member (11b) between internal walls of the distribution duct or the supply duct.

Description

Technical area

The present invention relates to a device for dispensing a fluid and a method for making such a device.

The technical field of the invention is in a non-limiting manner that of soap dispensing devices, cosmetic, or other, for volumes to be dispensed more or less important, for example, a device attached to a wall for dispensing large volumes of soap or a device of the advertising sample type for smaller volumes of cosmetics.

State of the art

Devices are known for dispensing a fluid such as that described in the document FR2962986 .

Such a device according to the state of the art is manufactured by introducing a dispensing valve on the side of a deformable bag arranged to be deformed by pressure. The valve in the state of the prior art is thus clipped on a portion of the pocket, called bottom wall, arranged to accommodate it.

A major disadvantage of this type of device manufacturing method according to the state of the art is that, because of the difficulty of insertion of the valve in the device, it can be time consuming and / or damage the valve during assembly affecting the tightness of the device.

The object of the present invention is to solve at least this problem posed by the state of the art.

Presentation of the invention

• de préférence un conduit d'alimentation,
• un conduit de distribution agencé pour conduire un fluide selon une direction de distribution,
• une poche déformable,
• de préférence une valve d'alimentation, qui, dans un état ouvert, permet un passage de fluide du conduit d'alimentation vers l'intérieur de la poche, et, dans un état fermé, ne le permet pas, et
• une valve de distribution, qui, dans un état ouvert, permet un passage de fluide de l'intérieur de la poche vers le conduit de distribution, et, dans un état fermé, ne le permet pas.

Such an objective is achieved with a device for dispensing a fluid (liquid and / or gas), comprising:

• preferably a feed duct,
• a distribution duct arranged to conduct a fluid in a distribution direction,
• a deformable pocket,
• preferably a supply valve, which, in an open state, allows fluid passage of the supply duct to the inside of the bag, and, in a closed state, does not allow it, and
• a dispensing valve, which, in an open state, allows a passage of fluid from the interior of the pocket to the dispensing conduit, and, in a closed state, does not allow it.

The dispensing valve is preferably held in the device by clamping between internal walls of the dispensing duct.

• par exemple par serrage par le coulissement de la valve de distribution le long du conduit de distribution,
• plus particulièrement de préférence par serrage dans le conduit de distribution, typiquement après un déplacement ou une insertion de la valve de distribution dans le conduit de distribution (typiquement le déplacement de la valve de distribution dans le conduit de distribution crée une déformation de matière de la valve de distribution ou d'un élément de jonction solidaire de celle-ci pour réaliser un serrage de de cet élément de jonction solidaire ou directement de la valve de distribution).

More generally, the dispensing valve is preferably maintained in the device according to the invention by clamping:

• for example by clamping by the sliding of the dispensing valve along the distribution duct,
• more particularly preferably by clamping in the dispensing duct, typically after a displacement or insertion of the dispensing valve in the dispensing duct (typically the displacement of the dispensing valve in the dispensing duct creates a material deformation of the dispensing duct. dispensing valve or a connecting element secured thereto for effecting clamping of this integral joining element or directly of the dispensing valve).

The dispensing valve is preferably, in its closed state, kept pressed against a part (called dispensing seat) of an inner wall of the dispensing duct.

Preferably, the dispensing valve can be connected to a connecting element, the dispensing valve and the connecting element being preferably integral and in one piece.

The dispensing valve and the connecting element are preferably integrally contained in the dispensing duct.

In the case where the dispensing valve is held in the device by clamping between internal walls of the distribution duct, the dispensing valve is preferably held in the device by clamping the connecting element between the inner walls of the duct. distribution. In addition, the supply valve and the dispensing valve can be connected by the connecting element, the two valves and the connecting element being integral and in one piece and the two valves being held in the device by clamping the connecting element between the inner walls of the distribution duct.

In the case where the dispensing valve is maintained in the device according to the invention by clamping in the dispensing duct, typically after a displacement or an insertion in the dispensing duct, the dispensing valve is preferably maintained in the device according to the invention. the invention by clamping the connecting element in the distribution conduit, typically after a displacement or insertion of the dispensing valve into the dispensing conduit.

In addition, the device according to the invention may comprise a reservoir (preferably non-deformable or semi-rigid), so that the supply conduit connects the reservoir to the deformable bag. In this case, the device according to the invention may comprise a passage (for example streaks) arranged to allow an air passage of the distribution duct towards the interior of the tank without passing through the pocket or the supply duct. . This passage is preferably located between an inner wall of the dispensing duct and the connecting element.

In addition, the supply valve may comprise a supply membrane comprising a free end relative to the connecting element, this free end being arranged to move to move the supply valve between its open and closed states. and a joining part with the joining element.

In addition, the supply membrane may extend from its joining portion to its free end at least partly in the distribution direction.

In addition, the supply membrane may preferably be flat and extend from its joining portion to its free end at an angle less than 45 ° with respect to the dispensing direction.

In addition, the supply membrane may extend from its joining portion to its free end at an angle greater than 5 ° with respect to the dispensing direction. Preferably, this angle is between 5 ° and 45 °. Even more preferably, this angle is between 5 ° and 20 °.

In addition, the free end of the feed membrane (and preferably only the free end of the feed membrane, and not its joining portion) may be in the pocket.

In addition, the dispensing valve may comprise a dispensing membrane comprising a free end relative to the connecting element, this free end being arranged to move to move the dispensing valve between its open and closed states and a portion connecting with the connecting element.

In addition, the dispensing membrane may extend from its joining portion to its free end at least partly in the distribution direction.

In addition, the dispensing membrane may preferably be flat and extend from its joining portion to its free end at an angle less than 45 ° with respect to the dispensing direction. In addition, this angle is preferably greater than 0.1 °. Preferably, this angle is between 0.1 ° and 45 °. Even more preferably, this angle is between 0.1 ° and 15 °.

In addition, the free end of the dispensing membrane may be in the dispensing duct.

In addition, the dispensing device according to the invention may further comprise a return means integral with the membrane of the dispensing valve and resting on an inner wall of the dispensing duct, arranged to exert a force on the dispensing membrane. returning the dispensing valve from its open position to its closed position.

In addition, the joining portion of the supply membrane may be further away from the pouch than the joining portion of the dispensing membrane.

In addition, the connecting element can be located between the distribution and supply valves.

In addition, the distribution duct may comprise opposite internal walls coming closer as one approaches the dispensing valve (ie, according to the embodiment considered, as one closer to the joining element and / or the single piece).

In addition, the dispensing device according to the invention may further comprise an opening between the distribution and supply ducts, said opening being blocked by the connecting element.

In addition, the dispensing device according to the invention may further comprise guide means arranged to guide the free end of the supply membrane through the opening of the dispensing duct into the pocket.

The dispensing device according to the invention may further comprise a closure valve located in the distribution duct between the dispensing valve and an outlet of the distribution duct towards the outside of the device according to the invention. The closure valve and the dispensing valve (with possibly also the supply valve) are preferably integral in one piece.

• par exemple par serrage par le coulissement de la valve de distribution le long du conduit de distribution,
• plus particulièrement de préférence par serrage dans le conduit de distribution, de préférence par un serrage entre des parois internes du conduit de distribution (de préférence, selon le mode de réalisation considéré, jusqu'à ce que la valve de distribution soit maintenue dans le dispositif par serrage de l'élément de jonction entre les parois internes du conduit de distribution).

According to another aspect of the invention, there is provided a method of manufacturing a fluid dispensing device according to the invention, characterized in that it comprises a step of insertion of the dispensing valve by the dispensing duct and a step of moving this dispensing valve by sliding thereof in the dispensing duct to position the dispensing valve to obtain a device according to the invention, preferably until the dispensing valve is held in the device by clamping:

• for example by clamping by the sliding of the dispensing valve along the distribution duct,
• more particularly preferably by clamping in the distribution duct, preferably by clamping between internal walls of the dispensing duct (preferably, according to the embodiment under consideration, until the dispensing valve is held in the device by clamping the connecting element between the inner walls of the distribution duct).

In addition, the insertion may comprise a passage from the supply valve of the distribution duct to the supply duct through the opening.

In addition, the insertion may comprise guiding, by the guiding means, the free end of the supply membrane through the opening of the dispensing duct into the pocket.

Description of the Figures and Embodiments

• la figure 1 est une vue en coupe de profil d'un mode de réalisation d'un dispositif selon l'invention,
• la figure 2 est une vue de dessus du dispositif selon l'invention de la figure 1, sans sa poche,
• la figure 3 est une vue en perspective et en coupe du dispositif selon l'invention de la figure 1,
• la figure 4 est une vue en coupe frontale du dispositif selon l'invention de la figure 1,
• la figure 5 est une vue de profil des valves 4, 5 du dispositif de la figure 1,
• la figure 6 est une vue, selon la même coupe de profil que la figure 1, du dispositif selon l'invention illustrant son procédé de fabrication,
• la figure 7 est une vue de coupe de profil d'une variante de dispositif 16 selon l'invention,
• la figure 8 est une vue en perspective de valves 4, 5, 28 de la variante de la figure 7,
• la figure 9 est une vue de coupe de profil d'une autre variante de dispositif 16 selon l'invention,
• la figure 10 est un agrandissement de la zone 44 de la figure 9,
• la figure 11 est une vue de coupe d'une partie de la variante de la figure 9, selon le plan de coupe 45 de la figure 9,
• la figure 12 est un agrandissement de la zone 46 de la figure 11,
• la figure 13 est une vue de coupe en perspective d'une autre variante de dispositif 16 selon l'invention, cette coupe étant réalisée selon un plan de coupe vertical qui est un plan de symétrie de cette variante de dispositif 16, et
• la figure 14 est un agrandissement de la zone 47 de la figure 13.

Other advantages and particularities of the invention will appear on reading the detailed description of implementations and non-limiting embodiments, and the following appended drawings:

• the figure 1 is a profile sectional view of an embodiment of a device according to the invention,
• the figure 2 is a top view of the device according to the invention of the figure 1 , without his pocket,
• the figure 3 is a perspective view in section of the device according to the invention of the figure 1 ,
• the figure 4 is a front sectional view of the device according to the invention of the figure 1 ,
• the figure 5 is a profile view of the valves 4, 5 of the device of the figure 1 ,
• the figure 6 is a view, according to the same profile section as the figure 1 , the device according to the invention illustrating its manufacturing process,
• the figure 7 is a profile sectional view of a device variant 16 according to the invention,
• the figure 8 is a perspective view of valves 4, 5, 28 of the variant of figure 7 ,
• the figure 9 is a profile sectional view of another variant of device 16 according to the invention,
• the figure 10 is an enlargement of area 44 of the figure 9 ,
• the figure 11 is a sectional view of part of the variant of the figure 9 according to the sectional plan 45 of the figure 9 ,
• the figure 12 is an enlargement of area 46 of the figure 11 ,
• the figure 13 is a perspective sectional view of another variant of device 16 according to the invention, this section being made according to a vertical sectional plane which is a plane of symmetry of this variant of device 16, and
• the figure 14 is an enlargement of area 47 of the figure 13 .

These embodiments being in no way limiting, it will be possible in particular to consider variants of the invention comprising only a selection of characteristics described subsequently isolated from the other characteristics described (even if this selection is isolated within a sentence comprising these other characteristics), if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art. This selection comprises at least one feature preferably functional without structural details, or with only a part of the structural details if this part alone is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art.

We will now describe with reference to Figures 1 to 5 a fluid distribution device 16 according to a preferred embodiment of the invention.

The fluid in the device 16 preferably comprises a liquid.

This fluid may consist of either a liquid or a mixture of liquid and gas (for example a foam) or a gel.

• un réservoir 17 de ce fluide,
• un conduit d'alimentation 6, directement relié au réservoir 17 et agencé pour conduire selon une direction de distribution 10 le fluide provenant du réservoir 17,
• un conduit de distribution 8 agencé pour conduire le fluide selon la direction de distribution 10,
• une poche déformable 2,
• une valve d'alimentation 4, qui, dans un état ouvert, permet un passage de fluide du conduit d'alimentation 6 vers l'intérieur de la poche 2, et, dans un état fermé, ne le permet pas, et
• une valve de distribution 5, qui, dans un état ouvert, permet un passage de fluide de l'intérieur de la poche 2 vers le conduit de distribution 8, et, dans un état fermé, ne le permet pas.

The device 16 comprises:

• a reservoir 17 of this fluid,
• a supply duct 6, directly connected to the reservoir 17 and arranged to conduct, in a dispensing direction, the fluid coming from the reservoir 17,
• a distribution duct 8 arranged to conduct the fluid in the dispensing direction 10,
• a deformable pocket 2,
• a supply valve 4, which, in an open state, allows fluid passage of the supply duct 6 to the inside of the bag 2, and, in a closed state, does not allow it, and
• a dispensing valve 5, which, in an open state, allows a passage of fluid from the inside of the bag 2 to the distribution duct 8, and, in a closed state, does not allow it.

The deformable bag 2 is arranged to be deformed by pressing by pressing on it in a direction of pressure 3. It is also arranged to open or close the supply valve 4 or dispensing valve 5, as the pocket 2 is pressed or released.

In a closed state, the supply valve 4 prevents a passage of fluid from the supply duct 6 to the inside of the bag 2.

In a closed state, the dispensing valve 5 prevents a passage of fluid from the interior of the bag 2 to the dispensing duct 8.

The pocket is delimited by a bottom wall 14 and a deformable lid 15.

The dispensing valve 5 is held in the device by clamping between internal walls of the distribution duct 8.

The supply duct 6 extends along the distribution direction 10.

The distribution duct 8 extends along the distribution direction 10.

The supply and distribution ducts 6 are in the extension of one another, ie they extend along the same axis parallel to the distribution direction 10.

The dispensing valve 5 is not on the side of the deformable bag 2 but inside the distribution duct 8. The dispensing valve 5 is neither clipped nor welded but held by clamping between the inner walls of the duct. distribution 8.

The supply valve 4 and the distribution valve 5 are connected by a connecting element 11. The two supply valves 4 and distribution 5 and the connecting element 11 are integral and in a single piece 12. This unique 12 piece is monobloc. It is made of a single material. The realization in one block of the feed valves 4 and distribution 5 reduces the insertion time of these valves. There is no other clamping piece for tightening the supply and distribution valves 4 and 5.

Note that the dispensing valve 5 is completely contained in the distribution duct 8.

Note that the junction element 11 is completely contained in the distribution duct 8 (compression ready of this junction element 11).

The two supply and distribution valves 4 are held in the device 16 by clamping the joining element 11 between the internal walls of the distribution duct 8. The tightening of the joining element 11 is a compression (ie a reduction of the section of the joining element 11 in a plane parallel to the view of the figure 4 between a free position of the part 12 before mounting in the device 16 and its position mounted inside the device 16 as illustrated in FIG. figure 1 ) typically between 5% and 80%, preferably of the order of 25% +/- 5%. The joining element 11 typically has a hardness of 70-80 Shore A.

The supply valve 4 comprises a supply membrane 7. The supply membrane 7 comprises a free end 21 with respect to the connecting element 11. This free end 21 is arranged to move to move the valve power supply 4 between its open and closed states. The supply membrane 7 also comprises a connecting portion 22 with the joining element 11. This joining portion 22 is located in the supply duct 6.

The dispensing valve 5 comprises a dispensing membrane 9. The dispensing diaphragm 9 comprises a free end 19 with respect to the connecting element 11. This free end 19 is arranged to move to make the dispensing valve 5 pass between its states open and closed. The distribution membrane 9 also comprises a joining portion 20 with the joining element 11.

The joining portion 20, 22 of each of the supply and distribution valves 5 attached to the joining element 11, and the joining element 11, are arranged on the side of the supply and supply ducts 6. and not inside the pocket 2.

The supply membrane 7 extends from its joining portion 22 to its free end 21. This extension is at least partly in the dispensing direction 10. The supply membrane 7 is flat. It extends from its junction portion 22 to its free end 21 at an angle 18 preferably less than 45 ° with respect to the dispensing direction 10.

The supply membrane 7 extends from its joining portion 22 towards its free end 21 at an angle preferably greater than 5 ° with respect to the dispensing direction 10.

Thus, it facilitates the fact of arranging the free end of the supply membrane 7 in the pocket 2.

In a preferred embodiment of the device according to the invention, the angle between the supply membrane 7 and the dispensing direction 10 is 15 °.

The free end 21 of the supply membrane 7 is in the pocket 2 and not in the supply duct 6. The free end 21 is the end which is not on the side of the joining element 11. The free end 21 can deform and / or move.

The joining portion 22 of the supply membrane 7 is not in the pocket 2. The joining portion 22 is on the supply duct 6 side with respect to the bottom wall 14.

The distribution membrane 9 extends from its joining portion to its free end. This extension is at least partly in the distribution direction 10. The distribution membrane 9 is flat. It extends from its joining portion to its free end at an angle preferably less than 15 ° with respect to the distribution direction 10.

In a preferred embodiment of the device according to the invention illustrated on the figure 1 , the angle between the dispensing membrane 9 and the dispensing direction 10 is very slightly greater than 0 ° (typically between 0.1 ° and 1 °). This very weak angle is not noticeable on the figure 1 but is sufficient to press the dispensing valve 5 in its closed state for a good seal. In other variants, one can have larger values of this angle (typically between 1 ° and 5 °).

The free end 19 of the distribution membrane 9 is in the distribution duct 8 and not in the pocket 2. The free end 19 of the dispensing membrane 9 is the end that is not on the side of the dispensing membrane. Junction element 11. The free end 19 of the distribution membrane 9 can deform and / or move.

• la valve d'alimentation 4 (plus exactement son extrémité libre 21) se plaque contre la paroi de fond 14 à l'intérieur de la poche 2 (plus exactement, contre une partie de la paroi de fond appelée siège d'alimentation 23) et est donc maintenue dans son état fermé, et
• la valve de distribution 5 (plus exactement son extrémité libre 19) s'écarte d'une paroi du conduit de distribution 8 et est donc maintenue dans son état ouvert ;

et le fluide contenu dans la poche 2 passe à travers la valve de distribution 5 selon la direction de pression 3 et est expulsé du dispositif 16 par le conduit de distribution 8 selon la direction de distribution 10.When pressing the pocket 2 (more exactly, on the lid 15) in the direction of pressure 3, an overpressure is created in the pocket 2, and:

• the supply valve 4 (more exactly its free end 21) is pressed against the bottom wall 14 inside the pocket 2 (more exactly, against a part of the bottom wall called the feeding seat 23) and is thus kept in its closed state, and
• the dispensing valve 5 (more exactly its free end 19) deviates from a wall of the distribution duct 8 and is thus kept in its open state;

and the fluid contained in the bag 2 passes through the dispensing valve 5 in the pressure direction 3 and is expelled from the device 16 via the dispensing pipe 8 in the dispensing direction 10.

• la valve d'alimentation 4 (plus exactement son extrémité libre 21) s'écarte de la paroi de fond 14 (plus exactement, de son siège d'alimentation 23) à l'intérieur de la poche 2 et est donc maintenue dans son état ouvert, et
• la valve de distribution 5 (plus exactement son extrémité libre 19) se plaque contre une paroi interne du conduit de distribution 8 (plus exactement, contre une partie de cette paroi interne appelée siège de distribution 24) et est donc maintenue dans son état fermé,

et le liquide contenu dans le conduit d'alimentation 6 passe par le trou B à travers la valve d'alimentation 4 parallèlement à la direction de pression 3 et on re-rempli ainsi la poche 2 de liquide provenant du réservoir 17 par le conduit d'alimentation 6.When the pressure exerted on the pocket 2 (more exactly, on the lid 15) is released in the direction of pressure 3, a depression is created in the pocket 2, and:

• the supply valve 4 (more exactly its free end 21) deviates from the bottom wall 14 (more exactly, its feed seat 23) inside the pocket 2 and is therefore maintained in its state open, and
• the dispensing valve 5 (more exactly its free end 19) is pressed against an inner wall of the dispensing duct 8 (more exactly, against a part of this internal wall called the dispensing seat 24) and is thus kept in its closed state,

and the liquid contained in the supply duct 6 passes through the hole B through the supply valve 4 parallel to the pressure direction 3 and thus refilled the liquid bag 2 from the tank 17 via the duct feeding 6.

When no pressure is exerted on the bag 2 (more exactly, on the lid 15) in the direction of pressure 3, the supply valve 4 and the dispensing valve 5 are both maintained in their closed state.

The device 16 also comprises a return means 29. The return means 29 is integral with the dispensing membrane 9 of the dispensing valve 5. It is supported on an inner wall of the dispensing duct 5 and is arranged to exert an force on the dispensing membrane 9. This force returns the dispensing valve 5 from its position open to its closed position. Thus, the dispensing valve 5 is in the closed state when a pressure variation on the bag 2 is negative or zero.

As illustrated on the figure 5 at least a portion of (preferably all) the joining portion 22 of the supply membrane 7 is further away from the bag 2 (or lid 15) than all the joining portion 20 of the dispensing membrane 9. The joining element 11 is located between the distribution and supply valves 4.

The figure 2 represents the cutting plane AA of the figure 4 . This cutting plane AA is perpendicular to the distribution direction 10.

The figure 4 is a view of the device 16 in frontal section along the plane AA shown in FIG. figure 2 .

The internal walls of the distribution duct 8 are opposite and come closer when approaching parallel to the direction 10 (from one end of the distribution duct 8 opposite the supply duct 6) of the single piece 12. The approximation of these walls makes it possible to tighten the joining element 11 between them.

The joining element 11 is held in the device 16 by clamping between internal walls of the distribution duct 8 at a step M formed by these internal walls. This step M goes up towards the pocket 2.

The device 16 also comprises an opening D. The opening D is located between the supply and supply ducts 8 and 6. The opening D (allowing the passage of the supply membrane 7 during its assembly) is blocked by the connecting element 11.

• comprimer l'élément de jonction 11 pour le maintien de la valve de distribution 5,
• assurer l'étanchéité de l'ouverture D entre le conduit d'alimentation 6 et le conduit de distribution 8, de sorte que du fluide ne puisse pas passer directement entre le conduit d'alimentation 6 et le conduit de distribution 8 mais doive passer par l'intermédiaire de la poche 2,
• remonter l'élément de jonction 11 en direction de la poche 2.

The step M is arranged for:

• compressing the joining element 11 to hold the dispensing valve 5,
• sealing the opening D between the supply duct 6 and the distribution duct 8, so that fluid can not pass directly between the supply duct 6 and the distribution duct 8 but must pass through through the pocket 2,
• reassemble the joining element 11 towards the pocket 2.

The device 16 also comprises guide means F (comprising a plane inclined with respect to the distribution direction 10) arranged to guide the free end 21 of the supply membrane 7 through the opening D of the distribution duct 8 into the pocket 2.

We notice on the figure 1 at least part of the (preferably all) feed seat 23 is further away from the cover 15 than is the dispensing seat 24.

The device 16 also comprises an output element (optional) 13 making it possible, for example, to transform a jet of fluid into a spray. The output element 13 makes it possible to reduce the circumference of the distribution duct 8. The output element 13 is disposed on the side of one end of the distribution duct 8 opposite to the supply duct 6.

It is now described with reference to the figure 6 a method of manufacturing the fluid dispensing device 16 according to the invention.

The method comprises a step of inserting the dispensing valve 5 (ie preferably the single piece 12) by the distribution duct 8. The method also comprises a step of displacing this dispensing valve 5 (ie preferably single piece 12) parallel to the dispensing direction 10 in the distribution duct 8 to position the dispensing valve 5 (ie preferably the single piece 12) to obtain the device 16 as described above with reference to the Figures 1 to 5 , ie until the connecting element 11 comes to plug the opening D and / or until the dispensing valve 5 is held in the device by clamping (of the connecting element 11) between internal walls of the distribution duct 8.

The displacement of the dispensing valve 5 (preferably the single piece 12) is effected by sliding of the dispensing valve 5 (preferably the single single piece 12) in the dispensing duct 8.

The step M makes it possible to finalize the tightening of the dispensing valve 5 (more exactly of the joining element 11) during the assembly of the device 16, so that the sliding of the dispensing valve 5 in the distribution duct 8 comprises at the level of the step M, a displacement of the dispensing valve 5 in the direction of the bag 2 (ie towards its seat). This ensures a good seal.

The insertion step comprises a passage from the supply valve 4 of the distribution duct 8 to the supply duct 6 by the opening D. This insertion step comprises a guide, by the guide means F, of the free end 21 of the supply membrane 7 through the opening D of the distribution duct 8 into the pocket 2 .

The output element 13 is finally inserted into the device 16, on the side of one end of the distribution duct 8 opposite to the supply duct 6.

Of course, the invention is not limited to the examples that have just been described and many adjustments can be made to these examples without departing from the scope of the invention.

1. 1) la valve d'alimentation 4 peut être reliée au réservoir 17 et former une seule pièce.
2. 2) la valve de distribution 5 peut être solidaire de l'élément de jonction 11 comme décrit précédemment, sans que cet élément de jonction 11 ne soit nécessairement solidaire de la valve d'alimentation 4. Dans ce cas, la valve de distribution 5 est maintenue dans le dispositif 16 par serrage de l'élément de jonction 11 entre des parois internes du conduit de distribution 8. La valve d'alimentation 4 peut être fixée par n'importe quel autre moyen, par exemple fixé par clipsage en la montant par « le dessus » en passant du côté de la poche 2, même s'il est vrai que cette variante est moins avantageuse de celle représentée sur la figure 1 ; Ainsi, en référence à la figure 5, on peut considérer l'élément de jonction 11 en deux éléments 11a et 11b séparés (et de préférence non solidaires), la valve de distribution 5 étant solidaire de l'élément de jonction 11a, la valve d'alimentation 4 étant solidaire de l'élément de jonction 11b (la ligne de découpe 25 illustre cette possible séparation). La valve de distribution 5 est alors maintenue dans le dispositif 16 par serrage de l'élément de jonction 11a entre des parois internes du conduit de distribution 8; La valve d'alimentation 4 peut de préférence être alors maintenue dans le dispositif 16 par serrage de l'élément de jonction 11b entre des parois internes du conduit de d'alimentation 6 ;
3. 3) le dispositif 16 peut comprendre plusieurs valves de distribution et/ou d'alimentation (par exemple pour distribuer plusieurs fluides), ces valves de distribution et d'alimentation comprenant de préférence au moins une paire constituée d'une valve de distribution et d'une valve d'alimentation, les valves de chaque paire étant soit solidaires par exemple sous la forme d'une pièce unique 12 comme précédemment décrit, soit séparées comme décrit au point 2) ci-dessus ; Dans le cas de deux fluides à distribuer, le dispositif 16 peut comprendre deux valves de distribution portées par un insert supportant ces deux valves de distribution, l'ensemble formé par ces deux valves de distribution et par l'insert étant de préférence monté par serrage dans un conduit de sortie dans lequel débouchent les conduits de distribution de chacune de ces valves de distribution, et au moins une, de préférence chacune de ces valves de distribution, est maintenue par serrage dans son conduit de distribution sur le même principe que décrit en référence aux figures.
4. 4) le couvercle 15 et la paroi 27 du réservoir 17 peuvent être réalisés en une seule pièce (une seule matière). En particulier, le corps de pompe 48 peut être inséré dans un tube à simple paroi ou à double parois, par exemple par coextrusion.

For example, the feed valves 4 and distribution 5 can be spaced apart and not integral without departing from the scope of the invention. In different variables, possibly combinable with each other:

1. 1) the supply valve 4 can be connected to the reservoir 17 and form a single piece.
2. 2) the dispensing valve 5 can be secured to the joining element 11 as described above, without this connecting element 11 necessarily being integral with the supply valve 4. In this case, the dispensing valve 5 is maintained in the device 16 by clamping the connecting element 11 between internal walls of the distribution duct 8. The supply valve 4 can be fixed by any other means, for example fastened by clipping in the amount by "The top" while passing from the side of the pocket 2, even if it is true that this variant is less advantageous than that represented on the figure 1 ; So, with reference to the figure 5 it is possible to consider the joining element 11 in two separate elements 11a and 11b (and preferably not integral), the dispensing valve 5 being integral with the connecting element 11a, the supply valve 4 being integral with the junction element 11b (the cutting line 25 illustrates this possible separation). The dispensing valve 5 is then held in the device 16 by clamping the joining element 11a between internal walls of the distribution duct 8; The supply valve 4 can then preferably be held in the device 16 by clamping the connecting element 11b between internal walls of the feed duct 6;
3. 3) the device 16 may comprise a plurality of dispensing and / or supply valves (for example for dispensing a plurality of fluids), these dispensing and supply valves preferably comprising at least one pair consisting of a dispensing valve and a supply valve, the valves of each pair being either integral for example in the form of a single piece 12 as previously described, or separated as described in point 2) above; In the case of two fluids to be dispensed, the device 16 may comprise two dispensing valves carried by an insert supporting these two dispensing valves, the assembly formed by these two dispensing valves and by the insert being preferably mounted by clamping. in an outlet duct in which the distribution ducts of each of these dispensing valves open, and at least one, preferably each of these dispensing valves, is clamped in its dispensing duct on the same principle as described in FIG. reference to the figures.
4. 4) the cover 15 and the wall 27 of the reservoir 17 can be made in one piece (a single material). In particular, the pump body 48 may be inserted into a single-wall or double-walled tube, for example by coextrusion.

We will now describe, with reference to Figures 7 to 14 different device variants 16 according to the invention. These variants will only be described for their differences with respect to the embodiment of the Figures 1 to 6 . In particular, the reference signs already introduced will not be fully described again.

With reference to Figures 7 and 8 it is noted that a variant of device 16 according to the invention further comprises a tooth or protuberance 26 arranged to sink into the joining element 11 (or in the element 11a). Thus, this tooth or protrusion 26 prevents the dispensing valve 5 from slipping inside the dispensing duct 8.

• un état ouvert, qui permet un passage du fluide du conduit de distribution 8 vers l'extérieur du dispositif 16, et
• un état fermé, qui empêche un passage du fluide du conduit de distribution 8 vers l'extérieur du dispositif 16.

The clamping forces exerted by the distribution duct 8 on the element 11 have a component perpendicular to the inner walls of the distribution duct 8 in contact with the element 11, the combination 52 of all the components of these clamping forces preferably substantially perpendicular to the inner walls of the conduit 8 in contact with the element 11 (or perpendicular to the dispensing direction 10) or at least forming an angle 53 greater than 45 ° with respect to the inner walls of the conduit 8 in contact with the element 11 (or relative to the dispensing direction 10). In addition, again with reference to Figures 7 and 8 it should be noted that an alternative device 16 according to the invention further comprises a closing valve 28 situated in the distribution duct 8 between the dispensing valve 5 and the outlet 30 of the dispensing duct 8 towards the outside of the device 16. This closure valve 28 has:

• an open state, which allows a passage of the fluid from the distribution duct 8 towards the outside of the device 16, and
• a closed state, which prevents a passage of the fluid from the distribution duct 8 towards the outside of the device 16.

The valve 28 is maintained by being itself compressed and deformed in the distribution duct 8, in this embodiment by the walls of the duct 8 which approach as previously described.

When pressing the pocket 2 (more exactly, on the lid 15) in the direction of pressure 3, an overpressure is created in the pocket 2, and the closing valve 28 deviates from its seat 49 (which is a wall of the distribution duct 8) and is thus kept in its open state.

When the pressure exerted on the pocket 2 (more exactly, on the cover 15) in the direction of pressure 3 is released, a depression is created in the pocket 2, and the closing valve 28 is pressed against its seat 49 ( which is an inner wall of the distribution duct 8) and is thus kept in its closed state.

This allows a better sealing of the device 16 in particular to prevent drying of the fluid in the conduit 8.

The device 16 preferably comprises a tooth or protuberance 31 arranged to be inserted into the valve 28.

Thus, this tooth or protrusion 31 prevents the dispensing valve 5 from slipping inside the dispensing duct 8.

The tooth 31 is made by drilling a hole 39 through the device 16 into the distribution duct 8. Once the valve 28 is in place in the duct 8, the hole 39 is plugged by the valve 28.

• une partie de support, dans la première matière (rigide), comprenant de préférence :
  • ∘ une plaque 33 délimitant une paroi inférieure du conduit de distribution 8 et/ou
  • ∘ un bouchon 13 (réduction de sortie, forme « applicateur » ou moyens pour générer un spray du fluide), et
• les valves 28, 5 (et éventuellement 4) dans la deuxième matière (plus souple que la première matière).

With reference to the figure 8 , the closing valve 28 and the dispensing valve 5 (with possibly also the supply valve 4) are preferably integral in one piece 32. This piece 32 is preferably made by bi-injection of a first and second a second matter. Exhibit 32 includes:

• a support part, in the first (rigid) material, preferably comprising:
  • A plate 33 delimiting a bottom wall of the distribution duct 8 and / or
  • A stopper 13 (output reduction, "applicator" shape or means for generating a spray of the fluid), and
• the valves 28, 5 (and possibly 4) in the second material (more flexible than the first material).

Note that the valve 28 comprises a concave groove 54 arranged to let the fluid when the valve 28 is in its open state.

• situé entre les parois intérieures du conduit de distribution 8 et l'élément 11 ou 11a (plus exactement entre la marche M et l'élément 11 ou 11a), et
• agencé pour permettre un passage d'air du conduit de distribution 8 vers l'intérieur du réservoir 17 sans passer par la poche 2, même lorsque l'on relâche la pression exercée sur la poche 2 (plus exactement, sur le couvercle 15) selon la direction de pression 3.

With reference to Figures 9 to 12 it will be noted that an "atmospheric" variant of device 16 according to the invention comprises a passage 34 (for example striations):

• located between the inner walls of the distribution duct 8 and the element 11 or 11a (more exactly between the step M and the element 11 or 11a), and
• arranged to allow an air passage of the distribution duct 8 towards the inside of the tank 17 without passing through the pocket 2, even when the pressure exerted on the pocket 2 (more exactly, on the cover 15) is released according to the direction of pressure 3.

Thus in this variant, the device 16 is no longer airtight.

Streaks made under the element 11 or 11a in the extension of the distribution channel allow with the deformation of a flexible portion of material of the element 11 or 11a to create micro channels. These micro channels are at the bottom of the streaks (hollow).

The valves 4, 5 are sealed to prevent leakage of the fluid (which may be either a liquid or a mixture of liquid and gas (for example a foam) or in a gel) of the bag 2 towards the outside of the device 16.

• lorsque l'on appui sur la poche 2 (plus exactement, sur le couvercle 15) selon la direction de pression 3, on crée une surpression dans la poche 2, de manière à expulser du fluide 35 de la poche 2 vers le conduit de distribution 8 puis vers l'extérieur du dispositif 16, mais
• lorsque l'on relâche la pression exercée sur la poche 2 (plus exactement, sur le couvercle 15) selon la direction de pression 3 :
  • ∘ du fluide 35 est aspiré du réservoir 17 vers le conduit de d'alimentation 6 puis vers la poche 2, et
  • ∘ de l'air 36 passe de l'extérieur du dispositif 16 vers le conduit de distribution 8 et/ou vers un autre conduit dédié 37, puis vers le passage 34 puis vers un trou 38 puis vers le réservoir 17 (sans passer par la poche 2 ou par le conduit d'alimentation 6 ou par la valve d'alimentation 4),

de sorte que, dans le réservoir 17, de l'air 36 remplace du fluide 35 aspiré du réservoir 17 vers la poche 2.By cons, the dispensing valve 5 is no longer airtight, so that:

• when pressing the pocket 2 (more exactly, on the lid 15) in the direction of pressure 3, an overpressure is created in the bag 2, so as to expel fluid 35 from the bag 2 to the distribution conduit 8 then out of device 16 but
• when the pressure exerted on the pocket 2 (more exactly, on the cover 15) is released in the direction of pressure 3:
  • ∘ fluid 35 is sucked from the reservoir 17 to the feed duct 6 and then to the bag 2, and
  • ∘ air 36 passes from the outside of the device 16 to the distribution duct 8 and / or to another dedicated conduit 37, then to the passage 34 and then to a hole 38 and then to the reservoir 17 (without passing through the pocket 2 or by the supply duct 6 or by the supply valve 4),

so that in the reservoir 17, air 36 replaces fluid sucked from the reservoir 17 to the pocket 2.

The passage 34 typically consists of streaks of microscopic height (typically between 50 and 600 microns) forming microchannels.

Finally, with reference to Figures 13 and 14 it should be noted that an alternative device 16 according to the invention may not comprise a supply valve 4.

In this variant, the supply duct 6, the reservoir 17 and the bag 2 are merged (unlike the previous variants and embodiments for which these elements were clearly distinct).

When pressing the pocket 2 in the direction of pressure 3, an overpressure is created in the pocket 2, and the dispensing valve 5 (more exactly its free end 19) deviates from a wall of the distribution duct 8 and is therefore kept in its open state; and the fluid 35 contained in the bag 2 passes through the dispensing valve 5 according to the course 42 and is expelled from the device 16 by the distribution duct 8 in the distribution direction 10.

When the pressure exerted on the bag 2 (more exactly, on the lid 15) in the direction of pressure 3 is released, a depression is created in the bag 2, and the dispensing valve 5 (more exactly its free end 19 ) is pressed against an inner wall of the dispensing duct 8 (more exactly, against a part of this internal wall called dispensing seat 24) and is thus kept in its closed state without air can come in from the outside of the device 16 towards the inside of the bag 2.

The manufacturing method of this variant of device 16 comprises a step of insertion of the dispensing valve 5 by the dispensing duct 8 and a step of displacing this dispensing valve 5 by sliding it in the dispensing duct. 8 until the dispensing valve is held in the device 16 by clamping between internal walls of the dispensing duct 8 (i.e. by clamping forces exerted by the dispensing duct 8 on the valve 5 or on the element 11a, these clamping forces having a component perpendicular to the inner walls of the distribution duct 8 in contact respectively with the valve 5 or the element 11a, the combination 52 of all the components of these forces. clamping device is preferably substantially perpendicular to the inner walls of the conduit 8 in contact respectively with the valve 5 or the element 11a (or perpendicular to the direction of distribution 10) or at least forming an angle 53 greater than 45 ° relative to the inner walls of the conduit 8 in contact respectively with the valve 5 or the element 11a (or with respect to the dispensing direction 10)).

• une première position 40 avant l'insertion de la valve de distribution 5 dans le conduit de distribution 8, et
• une deuxième position 41 à la fin de l'insertion de la valve de distribution 5 dans le conduit de distribution 8.

Each of the Figures 13 and 14 illustrates two positions of the dispensing valve:

• a first position 40 before the insertion of the dispensing valve 5 into the dispensing duct 8, and
• a second position 41 at the end of the insertion of the dispensing valve 5 in the distribution duct 8.

• contrairement au cas des figures 1 à 12 pour lesquelles la valve de distribution 8 était insérée par le conduit de distribution 8 du côté de la sortie 30 faisant la jonction entre le conduit de distribution 8 et l'extérieur du dispositif 16,
• ici, dans le cas de la variante des figures 13 et 14, la valve de distribution 8 est insérée par le conduit de distribution 8 du côté de l'entrée 43 faisant la jonction entre le conduit de distribution 8 et la poche 2.

However:

• unlike in the case of Figures 1 to 12 for which the dispensing valve 8 was inserted through the dispensing duct 8 on the outlet side 30 joining the dispensing duct 8 and the outside of the device 16,
• here, in the case of the variant of Figures 13 and 14 , the dispensing valve 8 is inserted through the distribution duct 8 on the inlet side 43 making the junction between the distribution duct 8 and the pocket 2.

This valve 5 is integral with the connecting element 11a which has a slope 50 which increases when the valve 5 enters the distribution duct 8 by the rear 43. This slope 50 allows the progressive crushing of the material of the element 11a during its introduction by sliding along the distribution duct 8. The material thus compressed allows clamping with the distribution duct 8. The amplitude 51 of the deformation is typically of the order of 0.1 to 0.4 mm.

Note that in all embodiments, the distribution membrane 9 and the connecting element 11 or 11a (which is integral with the distribution membrane 9) are located side by side along the distribution direction 10 .

Note further that the seat 24 is limited to one face, preferably plane, of the distribution duct 8, and does not do all the round of a section of the distribution duct 8 which would be made in a plane perpendicular to the direction of distribution 10.

Of course, the various features, shapes, variants and embodiments of the invention can be associated with each other.

Claims (15)

Device (16) for dispensing a fluid, comprising: a supply duct (6), a distribution duct (8) arranged to conduct a fluid in a dispensing direction (10), a deformable pocket (2), - a supply valve (4), which, in an open state, allows a fluid passage of the supply duct (6) to the inside of the pocket (2), and, in a closed state, does not not allow, and - a dispensing valve (5), which, in an open state, allows a passage of fluid from the inside of the bag (2) to the distribution duct (8), and, in a closed state, does not allow it not, characterized in that the dispensing valve (5) is integral with a connecting element (11a) and is held in the device by clamping its connecting element (11a) between internal walls of the distribution duct (8), the valve of dispenser (5) comprising a dispensing membrane (9) comprising a free end (19) arranged to move to move the dispensing valve (5) between its open and closed states, in the closed state of the dispensing valve (5) its free end (19) pressing against a part of an inner wall of the distribution duct (8), this part being called the dispensing seat (24), and / or - The supply valve (4) is integral with a connecting element (11b) and is held in the device by clamping its connecting element (11b) between internal walls of the distribution duct (8) or the duct supply unit (6), the supply valve (4) comprising a supply membrane (7) comprising a free end (21) arranged: • to press against a portion, called the feeding seat (23), a bottom wall (14) inside the pocket 2 to maintain the supply valve (4) in its closed state, and • to move away from its feeding seat (23) inside the pocket (2) to keep the supply valve (4) in its open state. Device according to any one of the preceding claims, characterized in that the dispensing seat (24) is limited to one face of the dispensing duct (8) and does not run all the way around a section of the dispensing duct (8). ) which would be made in a plane perpendicular to the distribution direction (10). Device according to any one of the preceding claims, characterized in that the supply valve (4) and the distribution valve (5) are connected by the same connecting element (11, 11a, 11b), the two valves and the connecting element (11) being integral and in one piece (12) and the two valves being held in the device by clamping the connecting element (11) between the inner walls of the distribution duct (8). Device according to claim 3, characterized in that it further comprises an opening (D) between the distribution (8) and supply (6) ducts, said opening (D) being blocked by the connecting element ( 11). Device according to claim 4, characterized in that it comprises guiding means (F) arranged to guide the free end (21) of the supply membrane (7) through the opening (D) of the duct distribution (8) into the pocket (2). Device according to any one of the preceding claims, characterized in that the distribution duct (8) comprises opposite internal walls approaching as one approaches the dispensing valve (5). Device according to any one of the preceding claims, characterized in that the dispensing valve (5) and the connecting element (11a) are integral and in one piece. Device according to any one of the preceding claims, characterized in that the free end (19) of the dispensing membrane (9) is free with respect to the connecting element (11a), the dispensing membrane (9) further comprising a joining portion (20) with the joining member (11a). Device according to claim 8, characterized in that the distribution membrane (9) is preferably flat and extends from its joining portion (20) towards its free end (19) at an angle of between 0.1 and 45 ° with respect to the direction of distribution. Device according to any one of the preceding claims, characterized in that the free end (21) of the supply membrane (7) is free with respect to the connecting element (11b), the supply membrane ( 7) further comprising a joining portion (22) with the joining member (11b). Device according to claim 10, characterized in that the supply membrane (7) is preferably flat and extends from its joining portion (22) towards its free end (21) at an angle of between 5 ° and 45 ° with respect to the distribution direction (10). Device according to any one of claims 10 to 11, considered as dependent on claim 8 or 9, characterized in that the joining portion (22) of the supply membrane (7) is further away from the bag (2 ) that the joining portion (20) of the dispensing membrane (9). Method of manufacturing a fluid dispensing device (16) according to one of the preceding claims, characterized in that comprises a step of inserting the dispensing valve (5) by the dispensing duct (8) and a step of moving this dispensing valve (5) by sliding thereof in the dispensing duct (8) until the dispensing valve is held in the device by clamping. A method according to claim 13, considered as dependent on claim 4 or 5, characterized in that the insertion comprises a passage from the supply valve (4) of the distribution duct (8) to the supply duct (6) through the opening (D). Method according to claim 13 or 14, considered as dependent on claim 5, characterized in that the insertion comprises guiding, by the guide means, the free end of the supply membrane (7) through the opening (D) of the distribution duct (8) into the pocket (2).

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