EP3993910A1

EP3993910A1 - Portable distributor with a pump without air return and a pump with air return

Info

Publication number: EP3993910A1
Application number: EP20735011.7A
Authority: EP
Inventors: Cédric Stéphane LEMAÎTRE; Mélanie Christiane Manuela PORRAS; Bruno STUART-TORRIE; Yvan BILQUEZ SÉBASTIEN
Original assignee: Laboratoires Clarins SAS
Current assignee: Laboratoires Clarins SAS
Priority date: 2019-07-03
Filing date: 2020-07-03
Publication date: 2022-05-11
Anticipated expiration: 2040-07-03
Also published as: FR3098098B1; FR3098098A1; WO2021001562A1; EP3993910B1

Abstract

A portable distributor (10) of one or more fluid or pasty products, comprises: a first pump without air return (16A) and a second pump with air return (16B, 16C), a push button (82) for pressing on a nozzle (52A) of the first pump (16A) and on a nozzle (54B, 54C) of the second pump (16B, 16C), and distribution ducts for channeling fluids escaping from the nozzles (54A, 54B, 54C) toward at least one distribution orifice (66). The distribution duct coming from the first pump (16A) has a volume greater than the distribution duct coming from the second pump (16B, 16C), with a difference in volume equal to the volume delivered by a pumping cycle of the nozzle of the first pump.

Description

DESCRIPTION

TITLE: PORTABLE DISTRIBUTOR WITH ONE PUMP WITHOUT AIR INTAKE AND ONE PUMP

AIR RECOVERY TECHNICAL FIELD OF THE INVENTION

The invention relates to a portable dispenser of several fluid products in parallel to constitute a mixture, for example of several cosmetic body care products, in particular facial care, makeup or perfumery, and / or several pharmaceutical products. The expression “fluid products” will include here liquid products, as well as creams, gels and pasty products which are sufficiently malleable to be dispensed using pumps.

STATE OF THE PRIOR ART

In the document EP3241459A1 is described and illustrated a dispenser of one or more fluid or pasty products comprising a dispenser body, a dispensing head fixed relative to the dispenser body, comprising two dispensing orifices, and a set of pumping comprising a two pumps, each connected to one of the distribution orifices, and each provided with a tubular nozzle defining an ejection axis passing through the associated distribution orifice, the ejection axes being parallel to an axis reference of the distributor and distant from each other, the nozzles being movable in translation relative to the distributor body parallel to the ejection axes. A rotating intermediate ring is interposed between the head and the body of the distributor. The intermediate ring is guided in rotation and fixed in translation with respect to the distributor body about the reference axis of the distributor. A kinematic connection between the rotating intermediate ring and the two nozzles makes it possible to transform a rotational movement without translation of the rotating ring relative to the distributor body around the reference axis of the distributor into a translational movement without rotation of the nozzle. the first pump and the nozzle of the second pump relative to the distributor body parallel to the reference axis of the distributor. This kinematic connection comprises a pusher interposed between the pumping assembly and the rotating intermediate ring, the pusher being connected to the distributor body by a sliding connection capable of guiding a translational movement without rotation of the pusher relative to the distributor body. The pusher is able to press on the jets of the two pumps when the intermediate ring rotates with respect to the distributor body about the reference axis of the distributor. The pusher comprises two parallel distribution conduits, each for channeling the fluid escaping from one of the nozzles to the associated distribution orifice. The dispensing head forms a flared cup which allows the user to mix the two fluids to obtain the desired end product.

[0003] The operation of the distributor can be considered satisfactory if neither of the two pumps requires priming, or if the two pumps require a priming and pressurizing cycle. It is then ensured that from the first use, the distributor will distribute the two products in the desired proportion. If, on the other hand, only one of the two pumps requires priming, the first pumping cycle will not be satisfactory, insofar as only one product, that coming from the pump not requiring priming, will be delivered.

[0004] Furthermore, the ergonomics of use of such a dispenser is not completely satisfactory, insofar as the user must hold the body or the head of the dispenser with one hand and with the other access to the intermediate ring, which is located under the flare head. Furthermore, the device is not suitable for dispensing products from pumps that do not have the same volume or have different priming characteristics. It is therefore not suitable for dispensing products with different flow characteristics, for example different viscosities, densities or surface tensions, requiring different types of pumps, or for products one of which is sensitive. in contact with air and the other not.

[0005] Document WO2010 / 003091 also discloses a distributor with two sprinkler pumps, actuated by a common pusher and provided with distribution conduits for guiding fluids escaping from the pumps to a common distribution orifice, in proportions that can be varied using an adjuster. The two pumps can either be both return air pumps or both pumps without return air. This document does not disclose a distributor whose two pumps are of different types, one with air intake and the other not.

DISCLOSURE OF THE INVENTION

[0006] The invention aims to remedy at least some of the drawbacks of the state of the art and to provide a portable dispenser with several pumps, suitable for the simultaneous dispensing of products having different natures or behaviors.

To do this is proposed, according to a first aspect of the invention, a portable dispenser of one or more fluid or pasty products, in particular one or more cosmetic products, body care, in particular facial care, for make-up or perfumery, comprising: a pumping assembly comprising at least a first pump without air intake and at least one second air intake pump, the first pump comprising a tubular nozzle, the second pump comprising a tubular nozzle , a pusher, the pusher being able to press on the nozzle of the first pump and on the nozzle of the second pump, a first distribution duct for channeling a first fluid escaping from the nozzle of the first pump to at least a first distribution orifice passing through an outer wall of the distributor, and a second distribution duct for channeling a second fluid escaping from the nozzle of the second pump to at least one distribution orifice ibution passing through the outer wall of the distributor, which may be the first distribution orifice or a second distribution orifice, the first distribution duct having a volume greater than the second distribution duct, with a difference in volume greater than twice the volume delivered by a pumping cycle of the nozzle of the first pump. [0008] During one or more first pumping cycles, which can be qualified as priming cycles, the two pumps are primed, without distributing fluid. The priming of the pump without air intake is however faster than the priming of the air intake pump which must pressurize the fluid reservoir where it plunges. The volume differential between the two distribution ducts makes it possible to compensate for this difference in behavior of the two pumps, by allowing the fluid coming from the pump without air intake to fill the volume available in the first distribution duct, without escaping. through the first distribution orifice while the return air pump completes its priming over one or more cycles. In practice, it has been observed that the number of priming cycles for the pump without air intake varies, depending on the initial state of the associated reservoir and the viscosity of the fluid, from 1 to 5. The number of cycles air intake pump priming is greater, greater than 5 and up to 10. By dimensioning the difference in volume between the two ducts according to the particular application, it is possible to obtain either an inlet simultaneous of the two fluids at the level of the distribution orifice (s), or even an arrival of the fluid from the air intake pump before the arrival of the fluid from the pump without air intake. Such a sequencing may be desired if the presence of the product coming from the air intake pump is necessary when the product coming from the pump without air intake emerges at the level of the first distribution orifice.

[0009] During subsequent pumping cycles, the pumps are active and distribute the products in the desired proportions.

According to one embodiment, the first duct comprises an intermediate delay chamber, connected to the dispensing orifice by a portion of the second duct having at least locally a cross section of less than 4 mm ² , preferably less than 2 mm ² . The passage section is chosen so as to minimize the flow of liquid filling the intermediate timing chamber. The blocking effect is all the more effective when the product delivered by the first pump has a high surface tension or a high viscosity. [0011] According to one embodiment, the pusher integrates at least part of the first distribution duct to channel a first fluid escaping from the nozzle of the first pump towards the distribution orifice, and at least part of the second distribution duct for channeling a fluid escaping from the nozzle of the second pump towards the distribution orifice. Preferably, the part of the first distribution duct integrated in the pusher has a volume greater than the part of the second distribution duct integrated in the pusher, with a difference in volume greater than or equal to the volume delivered by a pumping cycle of the nozzle. the first pump, preferably greater than twice the volume delivered by a pumping cycle of the nozzle of the first pump. Thus, not only the function of transmitting the thrust force on the nozzles, but also a function of guiding the flows, and of storing a dose of the product delivered by the first pump, are combined in the pusher.

[0012] In practice, the pusher may be made up of several assembled parts. Preferably, the pusher comprises at least two parts, each preferably obtained by molding, preferably capable of being each obtained by molding in a mold, the parts of which are movable relative to one another in translation parallel to the reference axis. . The desired kinematics is thus obtained with simple geometries, therefore simple tools. Preferably, at least one elastomeric static sealing gasket is provided, positioned between the parts of the pusher in order to seal the conduits. [0013] Preferably, the first dispensing orifice is provided with a non-return valve. The non-return valve opposes the flow of air in the first duct, and prevents an untimely flow of the product contained in the first duct.

[0014] According to a preferred embodiment, the second distribution duct is able to channel the second fluid escaping from the nozzle of the second pump to the first distribution orifice. The products dispensed by the first pump and the second pump are therefore routed to a common dispensing orifice, in order to flow together out of the dispensing orifice. Depending on the type of product dispensed, the dispensing orifice may open onto a flat, concave or convex surface of the dispensing head. A concave surface forming a bowl will be preferred in particular if the product dispensed is relatively fluid, or if it is desired that the user be able to mix the product or products dispensed before their application. [0015] According to one embodiment, the distributor further comprises a distributor body in which the pumping assembly is housed, the pusher being linked to the distributor body by a sliding connection capable of guiding a translational movement without rotation of the pusher relative to the distributor body, parallel to a reference axis of the distributor, the nozzle of the first pump and the nozzle of the second pump being movable in translation relative to the distributor body parallel to the reference axis. This guidance mode is particularly simple. Other guidance modes can however be envisaged. In particular, provision can be made for a pivoting movement of the pusher with respect to a pivot axis perpendicular to the translation axes of the first pump and of the second pump.

[0016] According to one embodiment, the dispenser further comprises a dispensing head movable relative to the dispenser body, and a kinematic connection between the dispensing head and the pusher to transform a movement of the dispensing head relative to the distributor body in a translational movement of the pusher relative to the distributor body parallel to the reference axis of the distributor. The movement of the dispensing head may for example be a translational movement without rotation, or a helical movement. According to a particularly advantageous embodiment, the dispensing head is movable in rotation about the reference axis of the dispenser and fixed in translation, relative to the dispenser body. The absence of translational movement of the dispensing head makes it possible to limit its height, and to simplify the forms of guiding the rotational movement of the dispensing head relative to the body of the dispenser. The simplified shapes are thus capable of being obtained by an injection molding process, in a mold whose parts are movable relative to each other in translation only, by an axial movement preferably parallel to the reference axis. This embodiment is discussed in detail in French patent application No. 1851890 filed on March 5, 2018, the content of which is incorporated here by reference. [0017] According to one embodiment, the kinematic connection between the dispensing head and the nozzle comprises an annular guide track located at a distance constant of the reference axis of the distributor and having one or more undulations in an axial direction parallel to the reference axis of the distributor and a set of one or more sliding surfaces cooperating with the annular guide track, the annular guide and the assembly of one or more sliding surfaces being arranged such that a rotation of the dispensing head about the reference axis of the dispenser causes a relative translation between the annular guide track and the set of one or more sliding surfaces parallel to the reference axis of the distributor, combined with relative rotation between the annular guide track and the assembly of one or more sliding surfaces around the reference axis of the distributor.

[0018] According to a particularly advantageous embodiment, the annular guide track is continuous and makes it possible to perform a complete revolution of the dispensing head around the reference axis of the dispenser. This continuity allows the user to use the dispenser without worrying about any initial position. Preferably, the position of the pumping assembly and of the kinematic connection between the distribution head and the nozzle reached after one revolution is identical to the starting position and corresponds to an integer number of pumping cycles, number which can be greater than or equal to one.

According to a preferred embodiment, the annular guide track and the assembly of one or more sliding surfaces are arranged such that the dispensing head can rotate around the reference axis of the dispenser in a forward direction and in a retrograde direction, preferably over more than one turn. The desired transformation of the non-translational rotational movement of the dispensing head into a non-rotating translational movement of the nozzle is thus obtained in both directions of rotation of the dispensing head.

[0020] According to one embodiment, the outer wall of the dispenser through which the dispensing orifice passes is a wall of the dispensing head. The distribution head therefore serves both to initiate the pumping movement and to collect the products distributed by the distributor. To accommodate the relative translational and rotational movement between the dispensing head and the pusher, one can provide the first distribution duct and the second distribution duct include a common chamber of variable height measured parallel to the axis of reference, extending between the pusher and the first dispensing orifice. This common chamber has a variable volume and makes it possible to accumulate the two products distributed by the two pumps before they flow out of the common distribution orifice. According to a first variant embodiment, the common chamber is delimited by two cylindrical sections (67, 110) capable of sliding one inside the other parallel to the reference axis of the distributor and of rotating with respect to one another. Another around the reference axis of the distributor, one of the two cylindrical sections being fixed relative to the dispensing head, the other of the two cylindrical sections being fixed relative to the pusher. According to another variant embodiment, the common chamber is delimited by a deformable wall, for example an accordion wall, having a first end fixed in translation with respect to the dispensing head and a second end fixed in translation with respect to the pusher.

To ensure the seal between the moving parts, one can advantageously provide that the common chamber is sealed by an annular seal bearing against a seal seat, and capable of rotating relative to the annular seal seat when the dispenser head rotates relative to the dispenser body around the reference axis.

The jets of the two pumps preferably have an identical working stroke. However, it is possible to envisage one of the two pumps having a shorter useful stroke than the other, in which case it is possible to provide a dead stroke of the pusher before the pusher comes to bear on the pump nozzle, the useful stroke of which is the shortest.

The two pumps immerse in separate tanks, to deliver separate products, which are mixed at the time of distribution, at the distribution orifice or slightly upstream. According to one embodiment, the dispenser body comprises a wall delimiting a peripheral reservoir into which opens a pump body of the second pump, the pump body of the second pump. first pump immersed in another variable volume reservoir preferably housed inside the peripheral reservoir. The wall of the peripheral reservoir can be opaque or transparent. Likewise, the inner reservoir can be opaque or transparent. The transparency of the walls makes it possible in particular to view the levels of the fluids contained in the reservoirs.

[0025] According to one embodiment, the two ejection axes are offset with respect to the reference axis. The three axes may or may not be coplanar to optimize the direction of the resulting force on the pusher.

[0026] According to a particularly advantageous embodiment, the pumping assembly comprises at least a third pump, comprising a tubular nozzle defining a third ejection axis fixed relative to the distributor body and parallel to the first ejection axis, the nozzle of the third pump being movable in translation relative to the distributor body parallel to the third ejection axis, the pusher being able to press on the nozzle of the third pump when the distribution head rotates relative to the distributor body around of the reference axis of the distributor, and comprising a third distribution duct for channeling a fluid escaping from the nozzle of the third pump towards the distribution orifice. The three ejection axes can be coplanar, or form an isosceles, or even equilateral, triangle to minimize the bulk. One of the three ejection axes can, if necessary, be coincident with the reference axis. The three pumps can be immersed in three separate enclosures to pump three distinct fluids corresponding, if necessary, to three distinct products to be mixed. Alternatively, two of the three pumps can immerse in a common enclosure, which makes it possible, for a given stroke of the pusher, to obtain very different proportions for the fluid delivered by a single pump and for the fluid delivered by two pumps in parallel.

Preferably, the dispenser body comprises one or more walls defining a fixed volume reservoir into which at least the pump body of the second pump of the pumping assembly opens, the wall or walls preferably comprising one or more several outer walls of the distributor body. Preferably, the dispenser comprises at least one variable-volume reservoir comprising at least one movable wall and into which the pump body of the first pump of the pumping assembly is immersed. According to one embodiment, the variable volume reservoir is formed by a cylindrical barrel closed by a piston. Alternatively, the variable volume reservoir is formed by a deformable pocket.

[0029] In the event that the dispenser has several reservoirs, all can be of fixed volume or of variable volume, or some can be of fixed volume and others of variable volume. BRIEF DESCRIPTION OF THE FIGURES

Other characteristics and advantages of the invention will emerge on reading the following description, with reference to the appended figures, which illustrate:

[FIG. 1] Figure 1, an exploded view from a first viewing angle of a dispenser according to one embodiment of the invention;

[FIG. 2] Figure 2, an exploded view from another angle of view of the dispenser of Figure 1;

[FIG. 3] Figure 3, a sectional view, along a section plane III-III illustrated in Figure 4, of the distributor of Figure 1, in a high reference position, between two pumping cycles; [FIG.4] Figure 4, a sectional view, along a sectional plane IV-IV illustrated in Figure

6, of the distributor of FIG. 1, in the upper reference position;

[FIG. 5] Figure 5, a sectional view, along a V-V section plane illustrated in Figure 6, of the dispenser of Figure 1, in the high reference position;

[FIG.6] Figure 6, a sectional view, along a sectional plane VI-VI illustrated in Figure 3, of the distributor of Figure 1;

[FIG. 7] FIG. 7, a detail of FIG. 4, in the high position;

[FIG.8] Figure 8, the detail of Figure 4, but in a low position of the dispenser; [FIG. 9] FIG. 9, an exploded view of a sub-assembly of the distributor of FIG. 1;

[FIG. 10] FIG. 10, an exploded view of the sub-assembly of FIG. 9, taken from another angle of view;

[FIG. 11] Figure 11, a bottom view of an upper part of the sub-assembly of Figure 9;

[FIG. 12] FIG. 12, a top view of a lower part of the sub-assembly of FIG. 9.

[0031] For greater clarity, identical or similar elements are identified by identical reference signs in all of the figures. DETAILED DESCRIPTION OF EMBODIMENTS

Referring to Figures 1 and 2, a portable dispenser 10 according to one embodiment of the invention comprises a dispenser body 12, a pumping assembly 14 comprising three parallel pumps 16 A, 16B, 16C, a head of distribution 22 covering the pumping assembly 14, movable in rotation relative to the distributor body 12 around an axis of revolution 100 which is also a reference axis of the distributor 10, a kinematic connection 24 between the distribution head 22 and the pumping assembly 14, and an optional outer cover 26.

For the remainder of the description, it will be arbitrarily considered that the cover 26 is located "above" the body 12 of the distributor, and that the reference axis 100 of the distributor is oriented vertically. We will thus use the term "upper" to denote what is turned "up" or what is "above", and the term "lower" to denote what is turned "down" or what is. "Below".

As illustrated in particular in Figures 3 to 6, and in more detail in Figures 7 and 8, the body 12 of the distributor 10, of cylindrical outer shape with a circular, oval or elliptical base centered on the reference axis 100 of the distributor, comprises a base 28, a hoop 30 attached to the base 28, a was 32 housed in an enclosure formed by a cylindrical outer wall 36 of the base, and a plate of support 38 clamped between the hoop 30 and the base 28. The plate 38 bears against an upper annular rim of the base 28 and against an upper annular rim of the barrel 32 with the interposition of one or more seals 39, so as to define two separate, non-communicating volumes 40, 42. The plate 38 is pierced with one or more openings 48 to bring the volume 40 to atmospheric pressure, inside the barrel 32 (FIG. 4).

The plate 38 is provided with three housing wells 50A, 50B, 50C, each to house one of the pumps 16 A, 16B, 16C of the pumping assembly 14. Each pump 16 A, 16B, 16C, comprises a pump body 52 A, 52B, 52C snapped into the associated well 50A, 50B, 50C, an internal mechanism of known type, and a tubular nozzle 54A, 54B, 54C movable in translation relative to the pump body 52 A, 52B, 52C between a rest position and a depressed position, both to actuate the mechanism of the associated pump 16 A, 16B, 16C and to deliver a dose of the pumped fluid through its outlet orifice. The translation axis of each nozzle 200A, 200B, 200C, hereinafter called the ejection axis, is parallel to the reference axis 100 of the distributor 10. A first pump 16A opens into the shaft 32, the other two 16B , 16C opening into the reservoir 42 located outside the barrel 32. Optionally, seals can be placed in each well 50A, 50B, 50C to ensure or reinforce the seal around the pump body 52 A, 52B, 52C associated. Thus the reservoir 42 located outside the barrel 32 has a constant volume and completely sealed with respect to the outside, the only communication with the outside being carried out by means of the pumps 16B, 16C, which are of the return air pump type. The barrel 32 constitutes for its part a housing for a sealed flexible bag 156 in which the pump body 52 A plunges. The pump 16A is a pump without air intake. In this embodiment, the ejection axes 200A, 200B, 200C are not coplanar, although other configurations are possible.

The plate 38 is also provided with two guide tubes 58 and indexing pins 62.

The dispensing head 22 is made in two parts, namely an upper part 64 and a lower part 65, on which the upper part 64 is snap-fastened. The upper part 64 has an upper face 164 in the form of a cup, pierced with a dispensing orifice 66 centered on the reference axis 100, which opens into a well 67. An annular seal 102 is fixed. by snap-fastening to the upper part 64 of the distribution head 22, inside the well 67. The distribution orifice 66 is closed by an elastomeric membrane 104 having at least one notch 106 to form a non-return valve. The membrane 104 is clamped between the annular seal 102 and the upper part 64 of the dispensing head 22.

The lower part 65 forms a cylindrical outer wall 68 provided at its free end with a guide flange 70, which fits into a reserved annular space, axially delimited by the plate 38 and by an annular shoulder 72 plane formed at the free end of the hoop 30, the cylindrical outer wall 68 being positioned facing a cylindrical guide bearing surface formed by the inner wall 130 of the hoop 30, so as to provide the rotational guidance without translation of the dispensing head 22 relative to the body 12 of the dispenser 10 around the reference axis 100. The collar 70 has two notches, each serving as a housing for an indexing tab 76.

The lower part 65 of the dispensing head 22 has an inner face turned towards the plate 38, provided with a cylindrical inner skirt 78 projecting towards the plate 38 (Figure 6). This skirt 78 has an end flange, located at a constant distance from the reference axis of the distributor, which forms an annular guide track 80 and has one or more corrugations, in this case two in number, in one direction. axial parallel to the reference axis 100 of the distributor 10. [0041] Between the distribution head 22 and the plate 38 of the body 12 of the distributor

10 is disposed a pusher 82 which constitutes, with the annular guide track 80, the kinematic connection making it possible to transform the rotational movement of the dispensing head 22 into a translational movement of the nozzles 54A, 54B, 54C.

The pusher 82, illustrated in detail in Figures 9 to 12, comprises an upper part 82.1, a lower part 82.2, and a collar 184, the three parts being fixed by gluing or any other suitable means, for example by snap-fastening, if necessary with the interposition of an elastomeric seal or of an overmolded ring in the same material 82.3 as the upper parts 82.1 and lower 82.2, which allows controlled welding and a perfect seal. The pusher 82 is positioned inside the outer wall 68 of the dispensing head 22, and has a circular outer periphery in sliding contact with the inner face of the outer wall 68.

The collar 184 comprises, on its upper face facing the dispensing head 22, a track 88 which has corrugations located axially opposite the annular guide track 80. In a reference angular position of the dispensing head 22 relative to the pusher 82, these corrugations are complementary to the corrugations of the annular guide track 80. The flange 184 is formed so as to allow the inner skirt 78 of the dispensing head 22 to come in sliding contact axially with the track. 88.

The upper part 82.1 of the pusher 82 forms a sealing sleeve 110, centered on the reference axis 100, projecting towards the dispensing head and, inside this sealing sleeve 110, a tube 112 with two slots 114A, 114B parallel to the reference axis 100. The two slots 114A, 114B are separated from each other by a partition 116, and each have an outlet orifice positioned opposite the membrane 104. The seal 102 bears resiliently slidingly against the cylindrical inner face of the sealing sleeve 110. A variable-volume chamber 118 is thus formed directly downstream of the outlet orifices of the two slots 114A, 114B and upstream of the valve. non-return formed by the membrane 104, delimited by the tube 112, the sealing sleeve 110, the seal 102 and the membrane 104. As illustrated in FIG. 5, the pusher 82 comprises, on its lower face facing the plate 38, two guide rods 9 8 which are inserted into the guide tubes 58 of the plate 38 to constitute a telescopic link for guiding in translation of the pusher 82 relative to the plate 38 parallel to the reference axis 100 of the distributor 10, as illustrated in FIG. 5 . On the underside of the pusher 82 are formed tubular sleeves 94A, 94B, 94C in which are inserted, preferably with a tight fit, the nozzles 54A, 54B, 54C.

A distribution duct is provided in the pusher to connect the nozzle 54A to the outlet of the light 114A. This duct has a hole 120A aligned with the nozzle 54A, passing through the wall of the lower part 82.2 of the pusher 82 and opening into an intermediate timing chamber 122A in the form of a half-moon formed between the lower part 82.1 and the upper part 82.1 of the pusher 82. The light 114A of the tube 112 also opens into the timing chamber 122A. A U-shaped deflection wall 124, visible more particularly in FIGS. 9 to 12, forces the fluid leaving the hole 120A to fill the delay chamber 122 before exiting through the light 114A.

Each of the two nozzles 54B, 54C is aligned with a hole 120B, respectively 120C. The two holes 120B, 120C open into a common T-shaped duct 122B formed between the lower part 82.1 and the upper part 82.1 of the pusher 82. The light 114B of the tube 112 also opens into the common T-shaped duct 122B. An elastomeric static seal 126 seals the timing chamber 122A and the T-duct 122B.

The distributor 10 operates as follows: In a reference angular position of the dispensing head 22 relative to the body 12 of the dispenser 10, the contact between the corrugated guide track 80 of the dispensing head and the corrugated guide track 88 of the pusher 82 is surface and the distance between the upper face of the pusher 82 and the plate 38 is maximum, as illustrated in FIG. 7. The nozzles 54A, 54B, 54C of the pumps are at their neutral point. top and the springs (not shown) integrated in each of the pumps 16 A, 16B, 16C push the nozzles 54A, 54B, 54C and, through them, the pusher 82, parallel to the reference axis 100, so that the flange 70 of the dispenser head 22 bears axially against the shoulder 72 formed by the band 30 of the body 12 of the dispenser 10. This position is therefore a position stable equilibrium. The indexing tongues 76 are each retained by the lugs 62, so that this position is an indexed position.

To obtain the distribution of a dose of product, the user, after removing the cover 26, turns the distribution head 22 relative to the body 12 of the distributor 10 around the reference axis 100, from the indexed starting position up to the next indexed position defined by the indexing tabs 76 and the pairs of indexing pins 62, over a half turn, as illustrated in FIG. 8. The elastic snap-fastening of the tabs d The indexation 76 between the lugs 62 on arrival in the new indexed position can be perceived by the user by touch or by the ear.

The rotation of the dispensing head 22 relative to the pusher 82 imposes a relative sliding movement between the guide tracks 80 and 88. On approximately the first half of the angular travel, therefore on a quarter of a turn, the movement relative guide tracks 80 and 88 generates, by a cam effect, an axial movement of the pusher 82 towards the plate 38, pushing the nozzles 54A, 54B, 54C against the force of the springs integrated in the mechanisms of the pumps 16 A, 16B , 16C. The amplitude of this movement is such that the nozzles 54A, 54B, 54C cover at least part of their useful translational stroke, sufficient to trigger a pumping cycle. Remarkably, the pump without air intake 16A does not require priming and delivers the product contained in the deformable bag 156 from the first cycle of use. Air intake pumps, on the other hand, require the reservoir 42 to be pressurized during the first cycle of use.

During the first use, the fluid of the deformable bag 156, delivered by the pump 16 A, fills the delay chamber 122A, while the pumps 16B, 16C carry out a pressurization of the reservoir 42, without delivering any fluid.

On the residual part of the rotation to the indexed final position, the springs of the pump mechanisms push the nozzles 54A, 54B, 54C which cause the push-button 38 to rise to the upper position. From the second pumping cycle and for subsequent cycles, the descent of the pusher 82 and the nozzles 54A, 54B, 54C jointly triggers the distribution of the products contained in the deformable bag 156 and in the reservoir 42 by the pumps 16 A, 16B, 16C. The product with which the timing chamber 122A has been filled in the previous cycle (s) is pushed back by the product coming from the pump 16A and travels to the outlet of the light 114A. In parallel, the product from the pumps 16B and 16C travels through the conduits 122B and the lumen 114B to the outlet of the lumen 114B.

The descent of the pusher 82 is accompanied by an enlargement of the volume of the chamber 118, which is filled with the products ejected through the outlet orifices of the lights 114A, 114B. The rise of the pusher in the residual part of the rotation to the indexed final position is accompanied by a reduction in the volume of the chamber 118 and an ejection of the mixture of products contained in the chamber 118 by the anti-valve. return 104. The user can then collect the dose of the two products mixed at the level of the cup 64.

For proper operation of the distributor, it is necessary to size the volume VA of the delay chamber 122A and the volume VB of the common duct 122B so that the difference in volume VA-VB between these two volumes is equal to the volume delivered by a pumping cycle of the pump 16A. Furthermore, it is advantageous for the maximum volume of the variable volume chamber 118 to be greater than or equal to the sum of the volumes delivered by the three pumps 16 A, 16B, 16C during a pumping cycle. This ensures that the ejection of the contents of the chamber 118 by the non-return valve 104 does not begin until the second part of the pumping cycle, when the pusher 82 rises. The description thus given of a pumping cycle on a half-turn is preferably independent of the direction of rotation of the distribution head 22, which can be either direct or retrograde. To ensure that the forces required to activate the pumps by direct or retrograde rotation are identical, appropriate symmetries are provided for the guide tracks 80 and 88. Furthermore, nothing prevents the user to turn the dispensing head 22 always in the same direction, therefore over more than one turn, each half-turn corresponding to a pumping cycle.

[0061] Of course, many modifications are possible.

The number of pumps and tanks can vary. For example, there may be only one air return pump and one pump without air return. It is also possible to envisage three pumps immersed in three different reservoirs, including at least one air intake pump and one pump without air intake. It is also possible to envisage embodiments with three pumps, the axes of which 200A, 200B, 200C are coplanar. Providing more than one pump for a given reservoir makes it possible, on the one hand, to increase the dose delivered for a given travel of translation of the pusher 82, and on the other hand to balance the forces on the pusher 82.

[0063] The useful strokes of the pumps can be identical or different. In this hypothesis, it is possible, for example, to provide for the pusher to be integral with the nozzle having the greatest useful stroke, and for the nozzles of the other pumps to be slidably mounted in the tubular sleeves 94A, 94B, 94C of the pusher.

The fixing of the pump or pumps 16 A, 16B, 16C to the body 12 of the distributor 10 can be carried out by any suitable means.

The general shape of the body 12 of the dispenser can vary. The dispensing head 22 is itself preferably cylindrical, but other choices can be made, in particular of a dispensing head having a symmetry of revolution of order N around the reference axis 100, N a number integer, for example equal to the number of pumping cycles obtained over one revolution of the distribution head 22.

The deformable pocket 156 can be replaced by a piston sliding on the walls of the barrel 32 and separating a variable volume in which the pump 16A plunges from an external environment at atmospheric pressure, as illustrated for example in the application

[0067] It is emphasized that all the characteristics, as they emerge for a person skilled in the art from the present description, the drawings and the attached claims, even if concretely they have only been described in relation to other particular characteristics, both individually and in any combination, may be combined with other characteristics or groups of characteristics disclosed herein, as far as this has not been expressly excluded or that technical circumstances make such combinations impossible or meaningless.

Claims

1. Portable dispenser (10) of one or more fluid or pasty products, in particular one or more cosmetic products, body care, in particular facial care, makeup or perfume, comprising: a pumping assembly (14 ) comprising at least a first pump (16A) and at least a second pump (16B, 16C), the first pump (16A) comprising a tubular nozzle (54A), the second pump (16b, 16C) comprising a tubular nozzle (54B , 54C), a pusher (82), the pusher (82) being able to press on the nozzle (54A) of the first pump (16A) and on the nozzle (54B, 54C) of the second pump (16B, 16C) , a first distribution duct for channeling a first fluid escaping from the nozzle (54A) of the first pump (16A) towards at least a first distribution orifice (66) passing through an outer wall (164) of the distributor, and a second distribution duct for channeling a second fluid escaping from the nozzle (54B, 54C) of the second pump (16 B, 16C) to at least one distribution orifice (66) passing through the outer wall of the distributor, which may be the first distribution orifice (66) or a second distribution orifice; characterized in that the first pump (16A) is a pump without air intake, the second pump (16B, 16C) is an air intake pump, and the first distribution duct has a volume greater than the second return duct. distribution, with a difference in volume greater than twice the volume delivered by a pumping cycle of the nozzle of the first pump.

2. Distributor according to claim 1, characterized in that the first duct comprises an intermediate delay chamber (122A), connected to the dispensing orifice by a portion (114A) of the second duct having at least locally a cross section less than 4 mm ² , preferably less than 2 mm ² .

3. Distributor (10) according to any one of the preceding claims, characterized in that the pusher (82) incorporates at least a part (120A, 122A, 114A) of the first distribution duct to channel a first fluid escaping from the nozzle (54A) from the first pump (16A) to the dispensing orifice (66), and at least part (120B, 122B, 114B) of the second dispensing duct for channeling a fluid escaping from the nozzle (54B, 54C) from the second pump (16B, 16C) to the dispensing orifice (66).

4. Dispenser according to claim 3, characterized in that the part (120A, 122A, 114A) of the first distribution duct integrated in the pusher (82) has a volume greater than the part (120B, 122B, 114B) of the second duct. distribution integrated in the pusher (82), with a difference in volume greater than or equal to the volume delivered by a pumping cycle of the nozzle (54A) of the first pump (16A), preferably greater than twice the volume delivered by a pumping cycle of the nozzle of the first pump. 5. Distributor (10) according to any one of the preceding claims, characterized in that the first distribution orifice (66) is provided with a non-return valve (104).

6. Distributor (10) according to any one of the preceding claims, characterized in that the second distribution duct is adapted to channel the second fluid escaping from the nozzle (54B, 54C) of the second pump (16B, 16C) towards the first dispensing orifice (66).

7. Dispenser (10) according to any one of the preceding claims, further comprising a distributor body (12) in which is housed the pumping assembly (14), the nozzle (54A) of the first pump (16A). and the nozzle (54B, 54C) of the second pump (16B, 16C) being movable in translation relative to the distributor body (12) parallel to the reference axis (100), the pusher being guided relative to the valve body distributor (12).

8. Dispenser (10) according to claim 7, characterized in that the pusher (82) is connected to the distributor body (12) by a sliding connection (58, 98) capable of guiding a translational movement without rotation of the pusher ( 82) in relation to the body distributor (12), parallel to the reference axis (100) of the distributor

(10)).

9. A dispenser (10) according to claim 8, further comprising a dispensing head (22) movable relative to the dispenser body (12), and a kinematic connection (24) between the dispensing head (22) and the pusher. (82) to transform a movement of the dispensing head (22) relative to the distributor body (12) into a translational movement of the pusher (82) relative to the distributor body (12) parallel to the reference axis (100) from the distributor. 10. Dispenser (10) according to claim 9, characterized in that the dispensing head (22) is movable in rotation about the reference axis (100) of the dispenser and fixed in translation, relative to the dispenser body ( 12).

1 1. A dispenser (10) according to any one of claims 9 to 10, characterized in that the outer wall (164) of the dispenser through which the dispensing orifice (66) is a wall of the dispensing head (22 ).

12. Distributor (10) according to claims 10 and 11, in combination, characterized in that the first distribution duct and the second distribution duct comprise a common chamber (118) of variable height measured parallel to the reference axis, extending between the pusher (82) and the first dispensing orifice (66).

13. Distributor (10) according to claim 12, characterized in that the common chamber (118) is delimited by two cylindrical sections (67, 110) able to slide one inside the other parallel to the reference axis ( 100) of the distributor and to rotate with respect to each other around the reference axis (100) of the distributor, one (67) of the two cylindrical sections being fixed with respect to the distribution head (22 ), the other (110) of the two cylindrical sections being fixed relative to the pusher (82).

14. Dispenser (10) according to claim 12, characterized in that the common chamber (118) is delimited by a deformable wall, for example an accordion wall, having a first end fixed in translation with respect to to the dispensing head (22) and a second end fixed in translation with respect to the pusher (82).

15. Dispenser according to any one of claims 11 to 14, characterized in that the common chamber (118) is sealed by an annular seal (102) bearing against a seal seat (110), and capable of rotate relative to the annular seal seat (110) as the dispenser head (22) rotates relative to the dispenser body (12) about the reference axis (100).