Necessary for use of cosmetic product, and associated filling process

Abstract

Cosmetic product dispensing kit and associated filling method. The kit includes a packaging and dispensing device comprising: a bottle (16) with a neck (26) defining an access passage to an internal volume, a connector (18) defining a central housing for receiving a removable mechanism for dispensing the liquid cosmetic product, and a dip tube (20) extending from the connector (18). It includes a filling container (14) which includes a dispensing head equipped with a cannula (150). The container (14) is movable relative to the bottle (16) between a storage position and a filling position in which the cannula (150) is inserted into the central housing and / or into the dip tube (20) to allow the transfer of the product from the container (14) to the bottle (16) through the dip tube (20). Figure for the abbreviation: Figure 5

Description

Title of the invention: Cosmetic product application device and associated filling method

[0001] The present invention relates to a cosmetic product user kit comprising a cosmetic product packaging and dispensing device and a filling container, the packaging and dispensing device comprising: - a bottle having an internal volume intended to contain a fluid cosmetic product, the bottle having a neck defining an access passage to the internal volume; - a connector inserted into the neck, the connector defining a central housing for receiving a removable mechanism for dispensing the fluid cosmetic product; - a dip tube extending the connector, the dip tube being received in the internal volume, the dip tube opening into the central housing;

[0002] the filling container defining an internal volume for receiving cosmetic product to be introduced into the bottle.

[0003] The cosmetic product is, for example, a hair product, a hygiene product, a face and / or body care product, a makeup product, or a sun protection product.

[0004] More generally, a cosmetic product is a product as defined in Regulation (EC) No 1223 / 2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products.

[0005] The proposal of eco-responsible, environmentally friendly solutions whose design and development take into account environmental issues is becoming a major concern in order to help meet global challenges.

[0006] It is therefore essential to design products that reduce the amount of materials used and / or replace them with more environmentally friendly materials and / or use recyclable materials in order to reduce the carbon footprint of the product.

[0007] In this context, it is important to develop packaging that generates less waste, in particular optimized for the quantity of products transported, notably by redesigning and / or resizing them in order to reduce the volume and weight of the quantity of packaging.

[0008] The objective is to offer eco-responsible reusable containers, in particular refillable or re-filled at home or in stores, in order to reduce the carbon footprint of packaging.

[0009] Consumers who regularly use a cosmetic product must make recurring purchases of packaging containing the same cosmetic product, this packaging being mostly for single use.

[0010] Most cosmetic product packaging with simple structures is now made of materials that can be recycled after use, in order to reduce the amount of waste produced.

[0011] However, some packaging has more complex elements, particularly when equipped with dispensing mechanisms, such as pumps mounted on the bottle containing the product.

[0012] These complex elements, in particular the pump, are difficult to recycle.

[0013] To limit the amount of waste produced, it is known, for example, from JP6609515 that the dispensing mechanism is mounted removablely on the bottle containing the cosmetic product. Thus, when the cosmetic product in the bottle is used up, the empty bottle can be disassembled and recycled. The pump is then assembled onto a refill of product.

[0014] The pump, which is relatively expensive and difficult to recycle, is therefore reused several times, which limits the environmental impact and reduces the cost of use.

[0015] Such a container, however, is not entirely satisfactory. Indeed, only the removable dispensing mechanism is reused several times, each bottle being single-use, which still generates waste that must be recycled.

[0016] Furthermore, the refill bottle is generally of the same quality as the primary container purchased by the consumer. In the case of bottles made of high-quality or aesthetically pleasing materials, the cost of the bottle, both financially and environmentally, is significant, particularly in relation to the cost of the dispensing mechanism.

[0017] Thus, even if refills are used by the consumer, these represent a cost which remains significant for the consumer, especially in comparison with that of the primary container.

[0018] Other product packagings including refills are described in JP6164937B2, JP5578545B2, JP5578545B2, JP6023861B1, FR2927888A1, FR2931462A1, JP5250492B2, EP2409774A2 and EP2105209B1.

[0019] One object of the invention is therefore to offer a necessary means of using cosmetic products that significantly limits the environmental impact and the cost of repeated use of cosmetic product from a primary container equipped with a dispensing mechanism.

[0020] To this end, the invention relates to a cosmetic product use kit of the aforementioned type, characterized in that the filling container includes a dispensing head equipped with a cannula, the filling container being movable relative to the bottle between a storage position away from the bottle and a filling position in which the cannula is inserted into the central housing and / or into the dip tube to allow the transfer of the product from the internal volume of the filling container to the internal volume of the bottle through the dip tube.

[0021] The dispensing head fitted with a cannula on the filling container fits easily into the central housing and / or into the dip tube, so that the user can easily fill the bottle of liquid cosmetic product through the dip tube.

[0022] Thus, the user can reuse the cosmetic product bottle of the primary packaging and dispensing device by filling it with cosmetic product using a filling container through the connector and dip tube mounted on the bottle. The bottle, the dispensing mechanism, the connector, and the dip tube of the primary packaging and dispensing device can then all be used multiple times.

[0023] Since the filling container is intended solely for filling the bottle, the materials composing it can be chosen to be inexpensive and optimized for recycling.

[0024] Thus, the environmental impact is greatly reduced, and the cost of reusing the primary conditioning and distribution device is minimal and much lower than the cost of the primary purchase of this device.

[0025] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the contact between the cannula and the connector and / or the dip tube is airtight in the filling position.

[0026] The airtight seal between the cannula and the connector prevents any liquid cosmetic product from flowing back into the central compartment during bottle filling. Thus, the cosmetic product exiting the filling container is directed exclusively to the dip tube to be completely reintroduced into the bottle's interior.

[0027] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature:

[0028] The dip tube is a separate part from the connector, assembled onto the connector. Manufacturing the dip tube, particularly by extrusion, as a separate part from the connector, itself produced in particular by molding, simplifies manufacturing. and allows the use of less expensive materials to make it, which reduces costs.

[0029] Furthermore, the length of the dip tube, which is determined by the internal height of the bottle, can then be modified while retaining a standard connector. This standardization of the connector for a plurality of bottles further reduces manufacturing costs.

[0030] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: the filling container includes a storage container having a neck, the dispensing head being mounted on the neck in a leak-proof manner.

[0031] Since the dispensing head is a separate part, hermetically sealed onto the neck of the container, the choice of materials for each part can be optimized according to their distinct mechanical functions and cost. Nevertheless, the hermetically sealed assembly ensures safe use of the filling container, without risk of leakage of the cosmetic product during filling.

[0032] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: the connector includes a barrel defining the central housing, the barrel defining at least one air passage vent connecting the internal volume of the bottle and the central housing of the connector.

[0033] The presence of an air passage vent equalizes the pressure between the central housing of the connector and the internal volume of the bottle when distributing product from the internal volume by means of a distribution mechanism fitted to the bottle, such as a pump, but also when introducing the liquid cosmetic product into the internal volume during a filling operation from the filling container, which ensures a fluid distribution through the dip tube.

[0034] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: the distribution head includes at least one partial sealing element of each air passage vent arranged around the cannula, the organ partial closure being positioned opposite the air passage vent in contact with the drum in the central housing in the filling position.

[0035] The presence of the partial vent closure limits the air passage cross-section through the vent during the filling of the cosmetic product, without completely obstructing it. Thus, the air passage vent can be sized to ensure sufficient air intake when the dispensing mechanism is activated, during normal use of the packaging and dispensing device. However, The partial sealing device still allows air to escape through the vent during filling, while forming an obstacle to the exit of cosmetic product via the vent during filling, particularly in the event that the user is not able to control the level of cosmetic product reintroduced into the bottle.

[0036] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the partial obturation device is a cylindrical peripheral skirt extending coaxially around the cannula.

[0037] The cylindrical peripheral skirt geometry of the partial sealing element allows the partial sealing element to be positioned opposite each air vent, regardless of the insertion angle or orientation of the cannula in the central housing and regardless of the number or size of each vent. The skirt thus simplifies the use of the filling container by the user, while limiting the risk of product overflow.

[0038] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - in the filling position, the partial sealing element and the connector shaft define between them at least one upstream air evacuation path into which the air passage vent opens.

[0039] The upstream path defined by the partial sealing device and the barrel equalizes the pressure between the central housing and the internal volume during filling, while ensuring control of the evacuated air flow and creating an obstacle by capillary action to the exit of the excess cosmetic product.

[0040] The upstream path can be defined by an upstream channel or by a simple non-sealing contact between the sealing member and the connector shaft, the non-sealing contact being able to be obtained by the presence of a structure on the wall of the sealing member and / or the shaft, such as a roughness for example obtained by hornbeam graining, a precise or particular dimensional geometry (for example triangular or oval) delimiting a space between the sealing member and the connector shaft or by the choice of a pair of materials preventing the achievement of a sealling contact between the sealing member and the shaft (for example both made of polyethylene terephthalate with a Young's modulus advantageously greater than 2 GPa).

[0041] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the partial obturation device has at least one longitudinal rib projecting radially, the upstream path being delimited laterally by the rib, the rib advantageously having an increasing radial extent along the partial obturation device from a free edge of the partial obturation device.

[0042] The longitudinal rib defines the upstream path while offering low manufacturing cost and simple dimensioning. The use of a rib ensures easy demolding and allows the formula to be contained within the upstream path in case of slight overflow through the vent.

[0043] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the connector has a collar protruding from an outer end of the barrel to apply to an outer edge of the neck, the distribution head comprising a transverse wall, the cannula protruding from the transverse wall, the collar and the transverse wall defining between them at least one downstream air evacuation path into which the upstream path opens in the filling position.

[0044] The downstream path defined by the collar and the transverse wall allows air to pass from the vent to the outside of the conditioning device, collecting the air expelled through the upstream path. This produces an overall pressure equalization between the internal volume of the bottle and the outside of the conditioning device.

[0045] The downstream path can be defined by a downstream channel or by a simple non-sealing contact between the collar and the transverse wall, the non-sealing contact being able to be obtained by the presence of a structure on the wall of the collar and / or the transverse wall, such as a roughness for example obtained by hornbeam graining, a precise or particular dimensional geometry delimiting a space between the collar and the transverse wall or even by the choice of a pair of materials preventing the realization of a sealling contact between the collar and the transverse wall (for example both made of polyethylene terephthalate with a Young's modulus advantageously greater than 2 GPa).

[0046] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the downstream path is defined by at least one radial air passage groove on the transverse wall.

[0047] The radial groove ensures simple manufacturing of the downstream path and precise dimensioning thereof, minimizing the impact on the part.

[0048] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the filling container contains a fluid cosmetic product in its internal volume, the upstream path having a minimal passage cross-section configured to allow air to pass through while preventing the passage of the fluid cosmetic product.

[0049] The minimum passage cross-section of the upstream path allows air to pass through during filling as long as the bottle is not full. However, this cross-section prevents the liquid cosmetic product from passing through once it reaches the vent(s). Thus, the bottle filling stops automatically when the liquid cosmetic product reaches the upstream path, preventing any risk of overflow of the liquid cosmetic product during filling, even if the user cannot control the filling, for example, because the bottle is opaque by design or due to product residue.

[0050] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the filling container has an end opposite the dispensing head having a shape configured to prevent stable vertical support of the filling container resting on this end.

[0051] The shape of the end opposite the dispensing head forces the user to store the refill container preferably with the dispensing head facing downwards, so that the liquid cosmetic product is located at the level of the dispensing head during storage. Thus, the absence of air being introduced into the bottle after the refill container is placed on the connector prevents the generation of an unpleasant noise when pressure is first applied to the refill container.

[0052] According to one variant, the necessary equipment for using a cosmetic product according to the invention comprises the following feature: - the cannula defines an orifice for the distribution of the fluid cosmetic product, connected to the internal volume, the cannula having an internal partition disposed in the orifice and separating the internal orifice into at least two distinct channels for the circulation of the fluid cosmetic product within the orifice.

[0053] Separating the internal orifice into two distinct channels reduces the local passage area for the cosmetic product. This increases its retention by capillary action, particularly when it is very fluid, in order to prevent its flow through the internal orifice, especially by gravity, before the deliberate application of pressure to the filling container by a user.

[0054] The invention also relates to a method for filling a cosmetic product, the method comprising the following steps: - provision of a cosmetic product use kit as defined above, with the filling container in a storage position; - insertion of the cannula into the central housing and / or the dip tube to move the filling container into the filling position; - flow of the fluid cosmetic product contained in the internal volume of the filling container through the cannula; - filling the internal volume of the bottle via the dip tube.

[0055] In particular, the step of flowing the fluid cosmetic product contained in the internal volume of the filling container through the cannula is carried out by generating an overpressure within the internal volume of the filling container, in particular by a user exerting pressure on the wall, provided to be flexible, of the filling container defining the internal volume so as to reduce its physical volume, this overpressure having the effect of causing the fluid cosmetic product to flow out of the internal volume of the filling container, through the cannula.

[0056] Alternatively, this step of flowing the fluid cosmetic product contained in the internal volume of the filling container through the cannula could be carried out by means of a piston system fitted to the filling container and allowing its internal volume to be modified.

[0057] According to one variant, the filling process according to the invention comprises the following feature: - the connector includes a barrel defining the central housing, the barrel defining at least one air passage vent between the internal volume of the bottle and the central housing, the dispensing head including at least one partial closure element for the vent or vents arranged around the cannula, the partial closure element partially blocking the vent from the central housing in the filling position, the partial closure element and the barrel defining between them at least one upstream air evacuation path into which the vent opens,

[0058] the process comprising, during the filling of the internal volume, the evacuation of the air contained in the internal volume of the bottle successively through the vent, then through the upstream path, the filling being prevented when the liquid cosmetic product reaches the upstream path.

[0059] The invention will be better understood upon reading the following description, given solely by way of non-limiting example, and made with reference to the accompanying drawings, in which:

[0060] [Fig. 1] [Fig. 1] is a cross-sectional view along a median vertical plane of a cosmetic product packaging and dispensing device according to the invention, equipped with a removable dispensing mechanism,

[0061] [Fig.2] [Fig.2] is an elevational view of a bottle of the conditioning and dispensing device and a filling container in a bottle filling position,

[0062] [Fig.3] [Fig.3] is an enlarged view, taken in cross-section along a median vertical plane of the conditioning and dispensing device without the removable dispensing mechanism,

[0063] [Fig.4] [Fig.4] is a perspective view of a connector extended by a dip tube intended to be mounted in the conditioning and dispensing device,

[0064] [Fig.5] [Fig.5] is a cross-sectional view along the median vertical plane of a detail of the bottle of the conditioning and dispensing device and the filling container in the filling position,

[0065] [Fig.6] [Fig.6] is a perspective view of the dispensing head of the filling container,

[0066] [Fig.7] [Fig.7] is an end view of a cannula variant of the distribution head.

[0067] In all that follows the terms "inside" and "outside", and "internal" and "external" are understood in relation to the internal volume of the cosmetic product packaging and dispensing device 12 or of the filling container 14. The term "inside" or "internal" associated with an element means that this element is generally closer to or oriented towards the internal volume, whereas the term "outside" or "external" generally means that the element is further away from or oriented towards the outside of the internal volume.

[0068] An example of the necessary use of cosmetic product 10 is visible in figures 2 and 5.

[0069] This kit 10 includes a device for conditioning and dispensing a cosmetic product 12 intended to be reused after the cosmetic product it contains has been used up and a refilling container 14, intended for refilling the conditioning and dispensing device 12 with cosmetic product to allow its reuse.

[0070] As seen in [Fig.1], the conditioning and dispensing device 12 comprises a conditioning assembly 11 (see also [Fig.3]) including a bottle 16, a connector 18 mounted in the bottle 16, and a dip tube 20 mounted at a free end of the connector 18.

[0071] The conditioning and dispensing device 12 further includes a dispensing mechanism 22, which is here removably mounted on the bottle 16 and in the connector 18 to allow access to the bottle 16 and permit refilling of the bottle 16 through the connector 18 and the dip tube 20.

[0072] Bottle 16 is preferably made in one piece.

[0073] It includes here a reservoir 24 extending along an elevation axis A-A' which is here vertical, and a neck 26 which extends the reservoir 24 along the elevation axis A-A'.

[0074] The reservoir 24 defines an internal volume 28 containing a fluid cosmetic product, the reservoir 24 extending along the elevation axis A-A' visible on the [Fig.1].

[0075] The reservoir 24 has a side wall 30, of polygonal or rounded section, a bottom 32 closing the side wall 30 downwards and a shoulder 34 from which the neck 26 projects upwards.

[0076] The side wall 30, the bottom 32 and the shoulder 34 define the internal volume 28.

[0077] The side wall 30 extends along the elevation axis A-A'. It is, for example formed of a rigid material and can receive ornaments. Advantageously, the side wall 30, or even the entire reservoir 24 and neck 26, is / are formed of glass.

[0078] The base 32 defines a support for the bottle 16 when it is placed on a surface perpendicular to the elevation axis A-A'. Here it presents a curved surface 36 defining a hollow.

[0079] As can be seen in [Fig.3], the collar 26 protrudes from the shoulder 34 along the elevation axis A-A'.

[0080] With reference to [Fig.3], the neck 26 has an internal surface 38 directed towards the elevation axis A-A', an external surface 40 opposite the elevation axis A-A' and an external edge 42 (or "drinking") connecting the internal surface 38 to the external surface 40, transversely to the elevation axis A-A'.

[0081] The internal surface 38 defines an access passage 44 to the internal volume 28, the access passage 44 extending along the elevation axis A-A'. It opens inwards into the internal volume 28 and outwards to the outside of the bottle 16.

[0082] The minimum diameter of the access passage 44 is for example between 9.5 and 25 mm, and in particular close to 12 mm.

[0083] From top to bottom on [Fig.3], the internal surface 38 defines at least one upper region 46 adjacent to the outer edge 42, at least one concave intermediate region 48 and at least one lower region 50 adjacent to the shoulder 34, the concave intermediate region 48 being located between the upper region 46 and the lower region 50 moving along the elevation axis A-A'.

[0084] The concave intermediate region 48 includes at least one undercut part 52, 54.

[0085] Advantageously, the concave intermediate region 48 is annular and comprises a first upper part 52 undercut, adjacent to the upper region 46 and a second lower part 54 undercut, adjacent to the lower region 50. The first undercut part 52 and the second undercut part 54 are annular.

[0086] The maximum depth of the concave intermediate region 48 taken in the same median plane passing through the elevation axis A-A', between the point of the upper region 46 closest to the elevation axis A-A', and between the point of the concave intermediate region 48 furthest from the elevation axis A-A', is greater than 0.1 mm, in particular between 0.1 mm and 0.4 mm, this depth being taken perpendicular to the elevation axis A-A'.

[0087] The point in the upper region 46 closest to the elevation axis A-A' is located above the point in the concave intermediate region 48 furthest from the elevation axis A-A'.

[0088] The external surface 40 has an external thread 56 on which the distribution mechanism 22 is intended to be mounted reversibly.

[0089] The outer edge 42 is arranged substantially perpendicular to the elevation axis A-A' at the end of the neck 26 opposite the reservoir 24.

[0090] In particular when the bottle 16 is formed of glass, the outer edge 42 is not flat and includes for example a bead 58 projecting outwards.

[0091] Advantageously, the bead 58 is annular around the elevation axis A-A'.

[0092] As seen in [Fig.4], the connector 18 has an inner barrel 60 and an outer collar 62 projecting radially from the barrel 60.

[0093] The connector 18 is suitable for being mounted in an inserted position in the bottle 16, from an assembly position away from the bottle 16.

[0094] The collar 62 protrudes radially in a continuous manner around the barrel 60. It applies in a sealed manner to the outer edge 42 of the neck 26 in the inserted position.

[0095] The collar 62 has a radial extent relative to the shaft 60 of between 50% and 100% of the maximum radial extent of the outer edge 42 of the neck 26.

[0096] In this example, the collar 62 is devoid of a dropped edge extending opposite the shaft 26.

[0097] The collar 62 defines an annular sealing relief 64 with the distribution mechanism 22, the annular relief 64 projecting outwards opposite the shaft 60.

[0098] The barrel 60 is inserted into the access passage 44 of the neck 26 of the bottle 16 in an inserted position visible in particular on the [Fig.3].

[0099] With reference in particular to figures 3 and 4, the barrel 60 presents successively, along the elevation axis A-A', an external region 66 for sealing the collar 62 with the external edge 42, an intermediate region 68 for mechanical retention in the neck 26 and an internal region 70 for connection to the dip tube 20.

[0100] The shaft 60 has along successive regions 66, 68, 70, an internal surface 72 directed towards the elevation axis A-A' and an external surface 73 placed opposite the internal surface 38 of the neck 26.

[0101] The internal surface 72 defines a central receiving housing 74 for the distribution mechanism 22.

[0102] The outer region for the realization of a seal 66 is adjacent to the collar 62. It includes a retaining projection 76 of generally annular shape, the retaining projection 76 extending radially away from the elevation axis A-A' from the outer surface 73.

[0103] The annular projection 76 is applied against the internal surface 38 of the neck 26 in the inserted position.

[0104] In this position, the annular projection 76 is retained in the concave intermediate region 48 by its cooperation with the concave intermediate region 48 under the undercut upper part 52.

[0105] By way of shape effect, the cooperation between the concave intermediate region 48 of the neck 26 and the annular projection 76 of the connector 18 generates a stress force applying the collar 62 on the outer edge 42 of the neck 26, the stress force being directed towards the inner volume 28 along the elevation axis A-A'.

[0106] For this purpose, the axial distance separating the inner surface of the collar 62 adapted to bear against the outer edge 42 of the neck 26 and the portion of the annular projection 76 closest to this surface is advantageously less than the axial distance separating the outer edge 42 of the neck 26 and the portion of the concave intermediate region 48 closest to this outer edge 42.

[0107] Thus, in the assembled position of the connector 18 in the neck 26 of the bottle 16, with the collar 62 resting on the outer edge 42 of the neck 26 and the annular projection 76 constrained in the concave intermediate region 48, the axial portion of the connector 18 located between the inner surface of the collar 62 and the annular projection 76 is elastically stressed in tension along the elevation axis A-A', so that the inner surface of the collar 62 is pressed against the outer edge of the neck, thereby improving the seal at this interface.

[0108] The stress force creates and / or reinforces the seal between the outer edge 42 and the collar 62 over the entire angular extent of the collar 62 around the elevation axis A-A', in particular by pressing the collar 62 against the bead 58 of the outer edge 42.

[0109] The axial stress force in the inserted position is in particular between 0.5 N and 10 N.

[0110] In the example shown in [Fig.4], the annular projection 76 has at least one axial notch 78 allowing gas to flow through the projection annular 76, especially when the annular projection 76 is applied against the concave intermediate region 48.

[0111] Even if no seal exists between the annular projection 76 and the neck 26, in particular since the axial notch 78 allows gases to pass through, the generation on the collar 62 of an axial stress force directed towards the internal volume 28 by shape effect between the annular projection 76 and the concave intermediate region 48 ensures that the collar 62 is applied in a sealed manner on the outer edge 42 of the neck 26 over the entire periphery of the neck 26.

[0112] As can be seen in [Fig.4], the outer region for sealing 66 and the intermediate region for mechanical retention 68 define an annular constriction 80 at their junction.

[0113] The intermediate mechanical retaining region 68 comprises at least one radially projecting structure, here an H-shaped projecting structure 82, at least one air passage vent 84, at least one lower fin 86 and an upper internal stop 88 for shimming the distribution mechanism 22, projecting into the central housing 74.

[0114] The protruding H-shaped structure 82 is designed to secure the connector 18 in the collar 26 when the connector 18 is in its inserted position. Each protruding H-shaped structure 82 extends from the outer surface 73 into the intermediate mechanical retention region 68.

[0115] Each protruding structure in H 82 comprises a first doublet 90 of fins 96, 98, a second doublet 92 of fins 96, 98 and an intermediate circumferential upright 94.

[0116] Each fin 96, 98 of a doublet 90, 92 projects radially from the shaft 60. It extends axially along the intermediate mechanical retention region 68, over the entire length between the outer sealing region 66 and the connection region to the dip tube 70.

[0117] Each pair of fins 90, 92 comprises a first fin 96 and a second parallel fin 98, arranged side-by-side.

[0118] The first fins 96 of the doublets 90, 92 are adjacent. They are arranged opposite each other, being connected by the circumferential intermediate upright 94.

[0119] The intermediate amount 94 also links the fins 96, 98 within a doublet 90, 92 together.

[0120] The distance between two fins 96, 98 within a doublet 90, 92 is generally between 10% and 50%, and in particular 30%, of the distance connecting the first fins 96 opposite each doublet 90, 92.

[0121] In the example shown in [Fig.4], the connector 18 comprises two protruding structures in H 82 diametrically opposed with respect to the elevation axis A-A'.

[0122] The axial notch 78 of the annular projection 76 opens here opposite the H-structure 82.

[0123] Each vent 84 is provided between two H-shaped structures 82 at the level of the annular constriction 80. It defines a through passage of air between the internal volume 28 of the bottle 16 and the central receiving housing 74 of the connector 18.

[0124] Advantageously, when the connector 18 is produced by molding, the shaft 60 defines a parting line (not shown) passing through the elevation axis A-A' between two H-shaped structures 82. This parting line results from the demolding of the connector 18 during its manufacture. Advantageously, each vent 84 is provided by a shape within the parting line, so that the parting line passes through each vent 84.

[0125] The integration of the vents 84 into the parting line avoids having small diameter pins in the mold which could easily break and generate connectors 18 which would lack vents 84.

[0126] In the example of [Fig.4], the connector 18 defines two opposing vents 84, located on either side of each H-structure 82.

[0127] Each lower fin 86 is disposed under each vent 84 on the outer surface 73 in the intermediate mechanical retaining region 68. Each lower fin 86 extends axially from each vent 84 to the junction between the intermediate mechanical retaining region 68 and the connection region to the dip tube 70.

[0128] With reference to [Fig.3], the internal stop 88 is annular. It extends radially in the central receiving housing 74, from the internal surface 72 in the mechanical retaining region 68. The upper internal stop 88 is disposed under the vent 84 along the elevation axis A-A'.

[0129] In the inserted position, the fins 96, 98 of each protruding structure in H 82 and the lower fins 86 are applied to the internal surface of the collar 38. The connector 18 is thus kept centered and wedged in the access passage 44.

[0130] The connection region to the dip tube 70 comprises successively along the elevation axis A-A', from the outside to the inside, a receiving cylinder 100 and a fixing cylinder 102.

[0131] The receiving cylinder 100 is adjacent to the intermediate mechanical retaining region 68. It has a lower annular stop 104 for shimming the distribution mechanism 22, which projects radially from the internal surface of the receiving cylinder 100.

[0132] The diameter of the receiving cylinder 100 is greater than the diameter of the fixing cylinder 102.

[0133] The fixing cylinder 102 extends internally to a free end having here a conical end 106.

[0134] The connector 18 is advantageously made of and consisting of an elastically deformable material, in particular a material having a Young's modulus between 1 GPa and 3 GPa. This material is, for example, polyethylene or polypropylene.

[0135] The dip tube 20 is cylindrical. It has an outer end engaged on the fixing cylinder 102 and a free inner end.

[0136] The dip tube 20 extends the barrel 60 of the connector 18. It is assembled with the connector 18 by engaging the fixing cylinder 102 in its outer end.

[0137] The dip tube 20 defines an internal conduit 108 connecting the internal volume 28 of the bottle 16 to the central receiving housing 74 in the inserted position.

[0138] In this position, the dip tube 20 is inserted into the inner volume 28. It has a length adapted so that its lower end dips into the cosmetic product, even when the level of cosmetic product is low in the bottle.

[0139] The dip tube 20 is preferably made of material, advantageously obtained at a lower cost by an extrusion process, and made of a material such as polyethylene.

[0140] The distribution mechanism 22 is reversibly mountable / dismountable between a mounted position on the collar 26 and a dismounted position away from the collar 26.

[0141] As seen in [Fig.1], the distribution mechanism 22 comprises a base 110, a pump body 112 mounted in the base 110, a distribution actuation member 114 operable by a user and optionally a cap 116.

[0142] The base 110 of the distribution mechanism 22 includes an external peripheral ring 118, an internal support and sealing ring 120 disposed in the external ring 118 and a transverse connecting wall 122 connecting the external ring 118 to the internal ring 120.

[0143] The external fret 118 is cylindrical with axis corresponding to the elevation axis A-A' in the mounted position.

[0144] The internal support ring 120 is arranged coaxially with the external fret 118. It protrudes outwards from an inner edge of the transverse connecting wall 122.

[0145] The transverse connecting wall 122 protrudes perpendicularly to the axis of the outer fret 118 in the intermediate space between the outer fret 118 and the inner ring 120. It has an annular shape which closes the intermediate space.

[0146] The external fret 118 has, under the transverse connecting wall 122, on the side opposite the internal support ring 120, an internal thread 115 complementary to the external thread 56 disposed on the neck 26 of the bottle 16.

[0147] In the mounted position, the transverse connecting wall 122 is arranged in tight contact with the collar 62 of the connector 18. The annular relief 64 of the collar 62 rests on the internal support ring 120 over its entire angular extent to ensure the seal.

[0148] This sealing is ensured with a minimum number of parts and in particular without the presence of sealing gaskets, on the one hand, between the collar 62 and the outer edge 42 of the neck 26 and on the other hand, between the collar 62 and the transverse wall 122.

[0149] Thus, the re-entry of air into the internal volume 28 during the actuation of the distribution mechanism 22 is carried out exclusively in a controlled manner by the vent or vent 84. This limits the risk of leakage of cosmetic product outside the internal volume 24.

[0150] In addition, the assembly / disassembly of the dispensing mechanism 22 to refill the bottle 16 is simplified and made more reliable by the absence of a sealing gasket, avoiding the need for the user to handle such a gasket (especially one soiled by cosmetic product) and / or to procure one for replacement.

[0151] The external flange 118 defines a receiving volume for the pump body 112, the pump body 112 comprising successively along the elevation axis A-A', a first sleeve 126 and a second sleeve 128, the first sleeve 126 having a diameter greater than the diameter of the second sleeve 128.

[0152] In the mounted position, the first sleeve 126 is in watertight contact with the inner surface 72 of the intermediate mechanical retaining region 68 of the connector 18 by its cooperation with the upper internal stop 88. The second sleeve 128 is in watertight contact with the inner surface of the connection region to the plunger tube of the connector 70 by its cooperation with the lower annular stop 104.

[0153] The two sleeves 126, 128 define a space for a pump motor (not shown) intended to pump the liquid present in the internal volume 28 of the bottle 16 when a moving element of the pump motor is moved by the actuation member 114.

[0154] The actuation member 114 includes a hood 130 and a distribution nozzle 132.

[0155] The actuation member 114 protrudes outwards from the internal support ring 120.

[0156] The hood 130 is engaged on the pump motor. It is moveable inwards by a user to actuate the pump motor and pump fluid cosmetic product from the internal volume 28 through the dip tube 20, the connection region 70, then into the pump motor to be conveyed to the dispensing nozzle 132.

[0157] The cap 116 defines an interior overlap space.

[0158] The cap 116 is movable between a covering position of the distribution mechanism 22 and a use position of the distribution mechanism 22.

[0159] As seen in [Fig.2], the filling container 14 comprises a storage container 134 for a cosmetic product and a dispensing head 136 mounted on the storage container 134.

[0160] The filling container 14 is movable between a storage position away from the bottle 16 and a filling position engaged in the connector 18 of the bottle 16, after dismantling the dispensing mechanism 22.

[0161] The storage container 134 extends along an axis B-B'. It defines an internal volume 137 and has a neck 140 projecting outwards from the internal volume 137. The internal volume 137 contains at least one refill dose of liquid cosmetic product intended to be introduced into the internal volume 28 of the bottle 16, via the connector 18 and the dip tube 20.

[0162] An end 138 of the storage container 134 opposite the neck 26 along the axis B-B' of the filling container 14 has a shape configured to prevent stable vertical support of the axis B-B' of the filling container 14 when the latter is supported on this end 138. The end 138 is in particular in the form of a domed bottom and / or a flat bottom having an angle of inclination with respect to a plane perpendicular to the axis B-B' of the filling container 14.

[0163] In the example illustrated in [Fig.2], the bottom of the storage container 134 at the end 138 is flat and has an angle of inclination between 25° and 55° with respect to the plane perpendicular to the axis of the container B-B'.

[0164] The neck 140 is cylindrical in shape with axis B-B'. It defines an outer surface and an inner surface.

[0165] The outer surface of the neck 140 has a thread (visible in [Fig.5]) to receive the distribution head 136.

[0166] The inner surface of the neck 140 defines an access channel 144 to the internal volume 137.

[0167] The storage container 134 is advantageously made in one piece of a flexible material, allowing a user to apply pressure to the storage cavity 134 by squeezing it between their fingers.

[0168] The storage container 134 is preferably made of a less expensive material than the bottle 16. The material is, for example, polyethylene, polypropylene or polyethylene terephthalate.

[0169] As seen in [Fig. 6], the dispensing head 136 comprises a cylindrical skirt 146 for mounting on the storage container 134, a transverse wall 148 closing the cylindrical skirt 146 outwards, a cannula 150 protruding from the transverse wall 148 and a partial obturator 152 of the or each vent 84 of the connector 18 when the cannula 150 is inserted into the connector 18.

[0170] The skirt 146 has a thread on its internal surface (visible in [Fig.5]), the thread of the skirt 146 being complementary to the thread of the neck 140.

[0171] The transverse wall 148 closes the outer edge of the skirt 146, the inner edge of the skirt 146 delimiting an insertion opening for the neck 140.

[0172] The transverse wall 148 comprises on its external transverse surface at least one radial air evacuation groove 154, preferably a plurality of radial grooves 154. Each radial groove 154 extends from the inner edge of the partial sealing member 152 to the peripheral edge of the transverse wall 148.

[0173] In the example of figures 6 and 7, the transverse wall 148 has a plurality of radial grooves 154 distributed angularly around the partial obturation member 152.

[0174] The cannula 150 protrudes from the transverse wall 148 opposite the cylindrical skirt 146. It defines an orifice 156 for the distribution of the cosmetic product

[0175] The diameter of the dispensing orifice 156 is advantageously between 1 mm and 6 mm. Such a diameter ensures that when no pressure is applied to the filling container 14, with the cannula directed downwards, the cosmetic product is retained in the dispensing orifice 156 by capillary action.

[0176] In a variant shown in [Fig. 7], the cannula 150 has an internal partition 158. The internal partition 158 is located inside the dispensing orifice 156 and creates two separate circulation channels 160 for the fluid cosmetic product. Since the separate circulation channels 160 for the cosmetic product have a transverse extent smaller than the internal diameter of the dispensing orifice 156, capillary retention of a lower viscosity cosmetic product is ensured.

[0177] In the example shown in [Fig.7], the separate circulation channels 160 of the fluid cosmetic product have the same passage cross-section.

[0178] The partial obturation member 152 is formed of a cylindrical peripheral skirt projecting on the transverse wall 148. It extends coaxially around the cannula 150, radially away from the cannula 150. Its length, taken along the axis of container B-B', is less than the length of the cannula 150, taken along the same axis B-B'.

[0179] The partial sealing member 152 has at least one longitudinal rib 162 projecting radially from its outer surface. Each longitudinal rib 162 extends along the partial sealing member 152 from an inner edge from the partial obturation organ 152 to a free outer edge of the partial obturation organ 152.

[0180] Each longitudinal rib 162 advantageously has a radial extent increasing from the free outer edge of the partial obturation member 152 towards the inner edge of the partial obturation member 152. Each longitudinal rib 162 advantageously has a thickness increasing from the free outer edge of the partial obturation member 152 towards the inner edge of the partial obturation member 152.

[0181] The minimum radial extent of the longitudinal rib 162, taken at the level of the free outer edge is for example less than 0.3 mm, is in particular between 0.02 mm and 0.2 mm, and is in particular close to 0.035 mm, when taken radially with respect to the axis B-B' from the cylindrical outer surface of the skirt.

[0182] In the example of [Fig.6], the partial sealing member 152 has a plurality of longitudinal ribs 162 distributed angularly around the axis of the container B-B' on the partial sealing member 152.

[0183] The dispensing head 136 is screwed onto the neck 140. The dispensing orifice 156 of the cannula 150 opens into the access channel 144 of the neck 140 and is fluidly connected to the internal volume 137 of the storage container 134

[0184] In the filling position, the cannula 150 and the partial sealing member 152 were inserted into the central receiving recess 74 of the connector 18 visible in [Fig. 5]. The cannula 150 is inserted tightly, particularly at the lower annular stop 104 in the region of connection to the dip tube 70 of the connector 18.

[0185] The transverse wall 148 rests on the collar 62 of the connector 18 in the filling position.

[0186] The seal between the outer surface of the cannula 150 and the inner surface of the connection region to the dip tube 70 ensures that the cosmetic product present in the internal volume 137 of the filling container 14 flows exclusively into the dip tube 20 towards the internal volume 28, without being able to pass into the central receiving housing 74 between the cannula 150 and the regions 46, 48.

[0187] As can be seen in [Fig.5], in the filling position, the partial sealing member 152 is arranged opposite each vent 84 and is in contact, via the ribs 162, with the internal surface 72 in the intermediate mechanical retention region 68.

[0188] The cooperation between the irregular outer surface of the partial sealing member 152 and the inner surface 72 in the intermediate mechanical holding region 68 defines at least one upstream path 164 for the evacuation of air expelled during the filling of the inner volume, into which the vent 84 opens.

[0189] Each upstream path 164 is laterally delimited by two adjacent longitudinal ribs 162.

[0190] The minimum air passage cross-section of each upstream path 164, taken here at the level of the free edge of the partial obturation member 152, is advantageously less than 10% of the cross-section of the internal orifice of the cannula 150. These cross-sections are taken in projection in a plane perpendicular to the elevation axis A-A'.

[0191] The minimum air passage cross-section of each upstream path 164 is generally less than 0.5 mm2, in particular between 0.3 mm2 and 0.5 mm2.

[0192] At the minimum air passage section of each upstream path 164, its maximum radial extent, taken perpendicular to the elevation axis A-A', is generally less than 0.3 mm, in particular between 0.02 mm and 0.2 mm.

[0193] A person skilled in the art is able to dimension the sections of the upstream path 164 (and of the downstream path 166 defined below) according to the viscosity of the product contained in the bottle 16 so that they allow the passage of air but not of the product.

[0194] The cosmetic product contained in the bottle may in particular have a viscosity at 25°C of between 3 cP (centiPoise) or 0.003 Pa.s (Pascal.second) for the most fluid products, corresponding for example to an oil, in particular a hair, face or body care oil, and 50 P (Poise) or 5 Pa.s (Pascal.second) for the most viscous products, corresponding for example to a cream, in particular a makeup cream such as a face foundation.

[0195] The viscosity of the cosmetic product may be measured at 25°C using a viscometer or a mechanical rheometer, preferably with a cone-plate or parallel-plate structure. Preferably, the viscosity of the product is measured at 25°C and at a rotational speed of 200 revolutions per minute. Alternatively, the viscosity of the cosmetic product may be measured at 25°C using an optical rheometer, such as, for example, a DWS RheoLab™ instrument marketed by LS Instruments®, set to a frequency of 1000 Hz (1000 s⁻¹). Furthermore, the cosmetic product may exhibit Newtonian fluid properties.

[0196] Thus, the air present in the internal volume 28, expelled by the filling of cosmetic product from the internal volume 137 through the cannula 150, is able to escape to the outside by passing through the upstream path 164. This ensures a smooth filling of the cosmetic product in the internal volume 28, without the user having to develop a significant clamping force on the storage container 134.

[0197] The minimum air passage cross-section of the upstream path 164 is also chosen to prevent the upward movement of fluid cosmetic product from the internal volume 28 into the upstream path 164 by capillary action.

[0198] This ensures that the filling of cosmetic product into the inner volume stops almost automatically or is greatly prevented as soon as the cosmetic product reaches the inlet of the upstream path 164. Thus, even if a user cannot control the quantity of cosmetic product introduced during the filling of the inner volume 28, for example because he cannot view this quantity through the side wall 30 of the bottle 16, the overflow of cosmetic product out of the bottle 16 is prevented.

[0199] In the example described above, the upstream path 164 is defined by an upstream channel. Alternatively, the upstream path 164 is defined by a simple non-sealing contact between the partial sealing member 152 and the shaft 60, the non-sealing contact being able in particular to be obtained by the presence of a structure on the wall of the partial sealing member 152 and / or of the shaft 60, such as a roughness for example obtained by hornbeam graining, a precise or particular dimensional geometry (for example triangular or oval) delimiting a space between the partial sealing member 152 and the shaft 60 or even by the choice of a pair of materials preventing the achievement of a sealling contact between the partial sealing member 152 and the shaft 60 (for example, polyethylene terephthalate with a Young's modulus advantageously greater than 2 GPa).

[0200] Furthermore, the collar 62 and the transverse wall 148 define between them at least one downstream path 166 into which an upstream path 164 opens. Each downstream path 166 is defined by a radial groove 154.

[0201] The downstream paths 166 collect the air evacuated by each upstream path 164 to transport it freely to the outside of the conditioning and distribution device 12.

[0202] In the example described above, the downstream path 166 is defined by a downstream channel. Alternatively, the downstream path 166 is defined by a simple non-watertight contact between the collar 62 and the transverse wall 148, the non-watertight contact being able in particular to be obtained by the presence of a structure on the wall of the collar 62 and / or the transverse wall 148, such as a roughness for example obtained by hornbeam graining, a precise or particular dimensional geometry delimiting a space between the collar 62 and the transverse wall 148 or even by the choice of a pair of materials preventing the realization of a watertight contact between the collar 62 and the transverse wall 148 (for example, polyethylene terephthalate with a Young's modulus advantageously greater than 2 GPa).

[0203] Thus, each vent 84, the plurality of upstream paths 164 and downstream paths 166 define a continuous air circulation path from the internal volume 28 of the bottle 16 to the outside of the conditioning and dispensing device 12 of a fluid cosmetic product, the air circulation path allowing air to be evacuated during the filling of the internal volume 28 of the bottle 16.

[0204] A method for filling the packaging and dispensing device 12 with a fluid cosmetic product using a filling container 14 will now be described.

[0205] Initially, the dispensing mechanism 22 is in the mounted position on the neck 26 of the bottle 16 and the cap 116 is in its covering position.

[0206] A user can remove the cap 116 and operate the dispensing actuator 114 in order to activate the pump motor and dispense a dose of cosmetic product contained in the internal volume 28 of the bottle 16 through the dip tube 20, the pump motor, and the dispensing nozzle 132.

[0207] Air enters through the pump motor into connector 18, then through vents 84 into the internal volume 28 to compensate for the dose of cosmetic product dispensed.

[0208] When the internal volume 28 needs to be refilled with cosmetic product, the dispensing mechanism 22 is moved to the disassembled position.

[0209] The user rotates the base 110 of the dispensing mechanism 22 relative to the neck 26 of the bottle 16 to release the dispensing mechanism 22 from the neck 26 of the bottle 16. He extracts the dispensing mechanism 22 from the central receiving housing 74 which is then freely accessible.

[0210] Next, the user enters a filling container 14 having an internal volume 137 containing the fluid cosmetic product.

[0211] Due to the shape of the bottom at the end 138, the filling container 14 was stored with its dispensing head 136 at the bottom, under the storage container 134.

[0212] The cosmetic product is then present in the access channel 144 to the internal volume of the filling container 14, limiting the presence of gas at the beginning of the filling.

[0213] Then, the user inserts the cannula 150 and the partial sealing member 152 into the central receiving housing 74. The end of the cannula 150 is inserted in a leak-proof manner into the lower annular stop 104 of the connector 18. The filling container 14 occupies the filling position described above.

[0214] The user then applies pressure to the storage container 134, for example by squeezing it between their fingers. The cosmetic product contained in the internal volume 137 of the filling container 14 flows through the cannula 150, the connection region 70 of the connector 18, and then the dip tube 20 to the internal volume 28 of the bottle 16.

[0215] The entry of cosmetic product into the internal volume 28 expels air contained in this volume 28. This evacuated air follows the air circulation path, in particular successively the vents 84, the upstream paths 164 and advantageously the downstream paths 166 to escape out of the conditioning and distribution device 12. This maintains atmospheric pressure within the internal volume 28 of the bottle 16.

[0216] The internal volume 28 fills until the level of cosmetic product reaches the vents 84. The viscosity of the cosmetic product prevents the cosmetic product from entering the upstream paths 164. The user therefore feels resistance or even a blockage when applying pressure and the cosmetic product is unable to flow, preventing any overflow, as described above.

[0217] The user then removes the cannula 150 from the lower annular stop 104 and moves the filling container 14 into its storage position.

[0218] The user then reassembles the dispensing mechanism 22 in its mounted position on the neck 26 of the bottle 16, and then optionally passes the cap 116 into its covering position.

[0219] The cosmetic product conditioning and distribution device 12 is therefore ready for use again, having been refilled with fluid cosmetic product.

[0220] Alternatively, the partial obturation member 152 is devoid of longitudinal ribs 162. Rather, it comprises an irregular external surface delimiting calibrated and contiguous hollows forming the upstream paths 164 when the cannula 150 and the partial obturation member 152 are mounted in the connector 18.

[0221] Thanks to the invention just described, a user can very simply and cleanly add liquid cosmetic product to the bottle 16, in order to use it for longer, rather than throwing it away or replacing the bottle 16 with a refill. This significantly limits the environmental impact and reduces the cost of reusing the packaging and dispensing device 12, since the refilling container 14 can be made of an easily recyclable and inexpensive material.

[0222] This filling is carried out very conveniently by the same dip tube 20 which is used to collect the cosmetic product during its distribution by activating the distribution mechanism 22. The filling is carried out without having to monitor the level of the cosmetic product and while keeping hands clean.

[0223] Indeed, the geometry of the connector 18 allows it to remain fixed in the neck 26 of the bottle 16 during filling, which confines the cosmetic product inside the bottle 16 and the filling container 14.

[0224] In addition, stopping the filling by blocking the cosmetic product at the entrance of each upstream path 164 avoids or greatly limits the risk of overflow.

[0225] The use of the filling container 14 therefore allows the dispensing mechanism 22 and the bottle 16 to be reused many times, without having to replace parts such as seals. This reduces the environmental and economic impact on the packaging and dispensing device 12, since the dispensing mechanism 22 is complex to recycle and the filling container 14 is advantageously made of a recyclable and inexpensive material.

Claims

1.

2. Demands Cosmetic product usage kit (10), comprising a cosmetic product packaging and dispensing device (12) and a filling container (14), the packaging and dispensing device (12) comprising: - a bottle (16) having an internal volume (28) intended to contain a fluid cosmetic product, the bottle (16) having a neck (26) defining an access passage to the internal volume (44), - a connector (18) inserted into the neck (26), the connector (18) defining a central receiving housing (74) for a removable dispensing mechanism (22) for the fluid cosmetic product, the connector (18) comprising a barrel (60) defining the central housing (74), the barrel (60) defining at least one air passage vent (84) connecting the internal volume (28) of the bottle and the central housing (74) of the connector (18), - a dip tube (20) extending from the connector (18), the dip tube (20) being received in the internal volume (28), the dip tube (20) opening into the central housing (74), the filling container (14) defining an internal volume (137) for receiving cosmetic product to be introduced into the bottle (16), characterized in that the filling container (14) includes a dispensing head (136) equipped with a cannula (150), the filling container (14) being movable relative to the bottle (16) between a storage position away from the bottle (16) and a filling position in which the cannula (150) is inserted into the central housing (74) and / or into the dip tube (20) to allow the transfer of the product from the internal volume (137) of the filling container (14) to the internal volume (28) of the bottle (16) through the dip tube (20). Cosmetic product use device (10) according to claim 1, wherein the contact between the cannula (150) and the connector (18) and / or the dip tube (20) is leak-proof in the filling position.

3. Cosmetic product use device (10) according to any one of the preceding claims, wherein the dip tube (20) is a separate part of the connector (18), assembled onto the connector (18).

4. Cosmetic product use device (10) according to any one of the preceding claims, wherein the filling container (14) comprises a storage container (134) having a neck (26), the dispensing head (136) being mounted on the neck (26) in a sealed manner.

5. Cosmetic product use device (10) according to any one of the preceding claims, wherein the dispensing head (136) comprises at least one partial sealing element (152) for the air passage vent (84) disposed around the cannula (150), the partial sealing element (152) being disposed opposite the air passage vent (84) in contact with the barrel (60) in the central housing (74) in the filling position.

6. Cosmetic product use device (10) according to claim 5, wherein the partial sealing device (152) is a cylindrical peripheral skirt extending coaxially around the cannula (150).

7. Cosmetic product use device (10) according to any one of claims 5 or 6, wherein in the filling position, the partial sealing member (152) and the barrel (60) of the connector (18) define between them at least one upstream air evacuation path (164) into which the air passage vent (84) opens.

8. Cosmetic product use device (10) according to claim 7, wherein the partial sealing member (152) has at least one radially projecting longitudinal rib (154), the upstream path (164) being laterally delimited by the rib (154), the rib (154) advantageously having an increasing radial extent along the partial sealing member (152) from a free edge of the partial sealing member (152).

9. Cosmetic product use aid (10) according to any one of claims 7 or 8, wherein the connector (18) has a collar (62) projecting from an outer end of the barrel (60) to fit onto an outer edge (42) of the neck (26), the distribution head (136) comprising a transverse wall (148), the cannula (150) projecting from the transverse wall (148), the collar (62) and the transverse wall (148) defining between them at least one downstream air evacuation path (166) into which the upstream path (164) opens in the filling position.

10. Cosmetic product use necessary (10) according to claim 9, wherein the downstream path (166) is defined by at least one radial air passage groove (162) on the transverse wall (148).

11. Cosmetic product use necessary (10) according to any one of claims 7 to 10, wherein the filling container (14) contains a fluid cosmetic product in the internal volume (137), the upstream path (164) having a minimum passage section configured to permit the passage of air while preventing the passage of the fluid cosmetic product.

12. Cosmetic product use necessary (10) according to any one of the preceding claims, wherein the filling container (14) has an end (138) opposite the dispensing head (136) having a shape configured to prevent stable vertical support of the filling container (14) resting on this end (138).

13. Cosmetic product use device (10) according to any one of the preceding claims, wherein the cannula (150) defines a distribution orifice (156) of the fluid cosmetic product, connected to the internal volume (137), the cannula (150) having an internal partition (158) disposed in the orifice (156) and separating the internal orifice (156) into at least two distinct channels (160) for the circulation of the fluid cosmetic product within the orifice (156).

14. A method for filling a cosmetic product, the method comprising the following steps: - providing a cosmetic product use kit (10) according to any one of the preceding claims, the filling container (14) being in a storage position, - inserting the cannula (150) into the central housing (74) and / or the dip tube (20) to move the filling container (14) into the filling position,

15. - flow of the fluid cosmetic product contained in the internal volume (137) of the filling container (14) through the cannula (150), - filling the internal volume (28) of the bottle (16) via the dip tube (20). A method for filling a cosmetic product according to claim 14, wherein the connector (20) comprises a barrel (60) defining the central housing (74), the barrel (60) defining at least one vent (84) for air passage between the internal volume (28) of the bottle (16) and the central housing (74), the dispensing head (136) comprising at least one partial sealing element (152) for the vent(s) (84) disposed around the cannula (150), the partial sealing element (152) partially blocking the vent (84) from the central housing (74) in the filling position, the partial sealing element (152) and the barrel (60) defining between them at least one upstream air evacuation path (164) into which the vent (84) opens, the method comprising, during the filling of the internal volume (28), the evacuation of the air contained in the internal volume (28) of the bottle (16) successively through the vent (84), then through the upstream path (164),Filling is prevented when the fluid cosmetic product reaches the upstream path (164).

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