Cosmetic product use kit and associated filling method

Abstract

Cosmetic product use kit, and associated filling method The kit comprises a packaging and dispensing device which comprises: a bottle (16) having a neck (26) defining a passage for access to an interior volume, a connector (18) defining a central housing for receiving a removable mechanism for dispensing the fluid cosmetic product, a dip tube (20) extending the connector (18). It comprises a filling container (14) which comprises a dispensing head provided 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 abstract: figure 5

Description

Title of the invention: Cosmetic product use kit, and associated filling method

[0001] The present invention relates to a cosmetic product use kit comprising a cosmetic product packaging and dispensing device and a filling container, the packaging and dispensing device comprising: - a bottle having an interior volume intended to contain a fluid cosmetic product, the bottle having a neck defining an access passage to the interior 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 interior 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 facial 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, dated 30 November 2009, relating to 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 to help meet global challenges.

[0006] It is therefore essential to design products that allow the quantity of materials used to be reduced and / or replaced with more environmentally friendly materials and / or to 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, in particular 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 reusable eco-responsible containers, particularly those that can be refilled or refilled at home or in stores in order to reduce the footprint. carbon from packaging.

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

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

[0011] However, some packaging has more complex elements, particularly when it is 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 removably mounted on the bottle containing the cosmetic product. Thus, when the cosmetic product contained in the bottle runs out, the used bottle can be dismantled and recycled. The pump is then assembled on a refill full 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] However, such a container is not entirely satisfactory. In fact, only the removable dispensing mechanism is reused several times, each bottle being, however, for single use, which still generates waste that must be recycled.

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

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

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

[0019] An aim of the invention is therefore to offer a cosmetic product use kit making it possible to significantly limit the environmental impact and the cost of recurring use of a cosmetic product from a primary container equipped with a dispensing mechanism.

[0020] To this end, the invention relates to a kit for using a cosmetic product. of the aforementioned type, characterized in that the filling container comprises a dispensing head provided 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 provided with a cannula on the filling container is easily inserted into the central housing and / or into the dip tube, so that the user can easily fill the bottle with fluid 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 the dip tube mounted on the bottle. The bottle, the dispensing mechanism, the connector and the dip tube of the primary packaging and dispensing device are then all usable several times.

[0023] Since the filling container is only intended 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 packaging and distribution device is minimal and much lower than the cost of the primary purchase of this device.

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

[0026] The sealed contact between the cannula and the connector prevents fluid cosmetic product from rising into the central housing when filling the bottle. Thus, the cosmetic product leaving the filling container is directed exclusively towards the dip tube to be reintroduced entirely into the interior volume of the bottle.

[0027] According to a variant, the kit for using a cosmetic product according to the invention comprises the following characteristic:

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

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

[0030] According to a variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: the filling container comprises a storage container having a neck, the dispensing head being mounted on the neck in a sealed manner.

[0031] Since the dispensing head is a separate part, tightly mounted on the neck of the container, the choice of materials for each of the parts can be optimized according to their distinct mechanical functions and their cost. Nevertheless, the tight mounting guarantees safe use of the filling container, without risk of leakage of the cosmetic product during filling.

[0032] According to a variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: the connector comprises a barrel defining the central housing, the barrel defining at least one air passage vent connecting the interior 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 interior volume of the bottle when dispensing product from the interior volume by means of a dispensing mechanism fitted to the bottle, such as a pump, but also when introducing the fluid cosmetic product into the interior volume during an operation of filling it from the filling container, which guarantees fluid dispensing through the dip tube.

[0034] According to a variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: the dispensing head comprises at least one member for partially closing the or each air passage vent, arranged around the cannula, the partial closing member being arranged opposite the air passage vent in contact with the barrel in the central housing in the filling position.

[0035] The presence of the partial closure member of the vent limits the air passage section through the vent when filling the cosmetic product, without completely obstructing it. Thus, the air passage vent can be sized to guarantee sufficient air suction when actuating the dispensing mechanism, during normal use of the packaging and dispensing device. Nevertheless, the partial closure member still allows air to escape through the vent when filling, while forming an obstacle to the exit of cosmetic product via the vent when filling, in particular in the case where the user is not able to check the level of cosmetic product reintroduced into the bottle.

[0036] According to a variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - the partial sealing member is a cylindrical peripheral skirt extending coaxially around the cannula.

[0037] The cylindrical peripheral skirt geometry of the partial closure member allows the partial closure member to be placed opposite the or each air passage vent, regardless of the angle of insertion or orientation of the cannula in the central housing and regardless of the number or extent of the or each vent. The skirt therefore simplifies the use of the filling container by the user, while limiting the risk of product overflow.

[0038] According to a variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - in the filling position, the partial sealing member and the barrel of the connector 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 member and the barrel equalizes the pressure between the central housing and the interior volume during filling, while ensuring control of the flow of evacuated air and creating an obstacle by capillary effect at the exit of the excess cosmetic product.

[0040] The upstream path can be defined by an upstream channel or by a simple non-sealed contact between the closure member and the barrel of the connector, the non-sealed contact being able to be obtained by the presence of a structure on the wall of the closure member and / or the barrel, 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 closure member and the barrel of the connector or even by the choice of a pair of materials preventing the creation of a sealed contact between the closure member and the barrel (for example both made of polyethylene terephthalate with a Young's modulus advantageously greater than 2 GPa).

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

[0042] The longitudinal rib defines the upstream path while providing low cost of fa-

[0043]

[0044]

[0045]

[0046]

[0047]

[0048]

[0049] construction and ease of sizing. The use of a rib ensures ease of demolding and allows the formula to be contained in the upstream path in the event of slight overflow of the latter through the vent. According to one variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - the connector comprises a collar projecting at an outer end of the barrel to be applied to an outer edge of the neck, the dispensing head comprising a transverse wall, the cannula projecting relative to 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. The downstream path defined by the collar and the cross wall allows the passage of air from the vent to the outside of the packaging device, collecting the air evacuated by the upstream path. This produces an overall pressure equalization between the interior volume of the bottle and the exterior of the packaging device. The downstream path can be defined by a downstream channel or by a simple non-tight contact between the collar and the transverse wall, the non-tight contact being able to be obtained by the presence of a structure on the wall of the collar and / or of 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 creation of a tight 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). According to one variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - the downstream path is defined by at least one radial air passage groove on the transverse wall. The radial groove ensures simple manufacturing of the downstream path and precise sizing of the latter, minimizing the impact on the part. According to one variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - the filling container contains a fluid cosmetic product in the internal volume, the upstream path having a minimum passage section configured to allow the passage of air while preventing the passage of the fluid cosmetic product. The minimum passage section of the upstream path allows the passage of air during filling as long as the bottle is not full. However, this section prevents the

[0050]

[0051]

[0052]

[0053]

[0054] fluid cosmetic product to pass when it reaches the vent(s). Thus, an automatic stop of the filling of the bottle occurs when the fluid cosmetic product reaches the upstream path, this preventing any risk of overflow of the fluid cosmetic product during filling, even if the user cannot control the filling, for example because the bottle is opaque by construction or due to product residue. According to one variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - the filling container has an end opposite the dispensing head having a shape configured to prevent stable vertical maintenance of the filling container resting on this end. The shape of the end opposite the dispensing head forces the user to store the filling container preferably with the dispensing head facing downwards, the fluid cosmetic product therefore being located at the level of the dispensing head during storage. Thus, the absence of air introduced into the bottle after placing the filling container on the connector avoids the generation of an unsightly sound emission when pressure is first applied to the filling container. According to one variant, the kit for using a cosmetic product according to the invention comprises the following characteristic: - the cannula defines an orifice for dispensing the fluid cosmetic product, connected to the internal volume, the cannula comprising an internal partition arranged in the orifice and separating the internal orifice into at least two separate channels for circulating the fluid cosmetic product within the orifice. The separation of the internal orifice into two distinct channels reduces the local passage section for the cosmetic product. This increases its retention by capillary action, particularly when it is very fluid, in order to prevent it from flowing through the internal orifice, particularly by gravity, before the voluntary application of pressure on the filling container by a user. The invention also relates to a method for filling a cosmetic product, the method comprising the following steps: - supply of a cosmetic product use kit as defined above, the filling container being 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 tube diver.

[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 the physical volume thereof, this overpressure having the effect of causing the flow of the fluid cosmetic product outside 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 equipping the filling container and making it possible to modify its internal volume.

[0057] According to a variant, the filling method according to the invention comprises the following characteristic: - the connector comprises a barrel defining the central housing, the barrel defining at least one air passage vent between the interior volume of the bottle and the central housing, the dispensing head comprising at least one member for partially closing the or each vent arranged around the cannula, the partial closing member partially blocking the vent from the central housing in the filling position, the partial closing member and the barrel defining between them at least one upstream air evacuation path into which the vent opens,

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

[0059] The invention will be better understood on reading the description which follows, given solely as a non-limiting example, and made with reference to the appended drawings, in which:

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

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

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

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

[0064] [Fig.5] [Fig.5] is a sectional view along the median vertical plane of a detail of the bottle of the packaging and dispensing device and of 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 dispensing head.

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

[0068] An example of a cosmetic product use kit 10 is visible in Figures 2 and 5.

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

[0070] As seen in [Fig.l], the packaging and dispensing device 12 comprises a packaging assembly 11 (see also [Fig.3]) comprising 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 packaging and dispensing device 12 further comprises 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 to authorize a new filling of the bottle 16 through the connector 18 and the dip tube 20.

[0072] The bottle 16 is preferably made in one piece.

[0073] Here it comprises 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 interior volume 28 containing a fluid cosmetic product, the reservoir 24 extending along the elevation axis A-A' visible in [Fig.l].

[0075] The tank 24 comprises 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 interior 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 entirety of the reservoir 24 and the neck 26, is (are) formed of glass.

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

[0079] As visible in [Fig.3], the neck 26 projects from the shoulder 34 along the elevation axis A-A'.

[0080] With reference to [Fig. 3], the neck 26 comprises 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 interior volume 28, the access passage 44 extending along the elevation axis A-A'. It opens inwards, into the interior volume 28 and outwards, outside 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 in [Fig. 3], the inner 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 comprises at least one undercut portion 52, 54.

[0085] Advantageously, the concave intermediate region 48 is annular and comprises a first upper undercut portion 52, adjacent to the upper region 46 and a second lower undercut portion 54, adjacent to the lower region 50. The first undercut portion 52 and the second undercut portion 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 of the upper region 46 closest to the elevation axis A-A' is located above the point of the concave intermediate region 48 furthest from the elevation axis A-A'.

[0088] The external surface 40 comprises 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 from glass, the outer edge 42 is not flat and comprises, for example, an outwardly projecting bead 58.

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

[0092] As visible in [Fig.4], the connector 18 comprises an inner barrel 60 and an outer collar 62 projecting radially relative to the barrel 60.

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

[0094] The collar 62 projects radially continuously around the barrel 60. It is applied 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 barrel 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 fallen edge extending opposite the barrel 26.

[0097] The collar 62 defines an annular relief 64 for sealing with the distribution mechanism 22, the annular relief 64 projecting outwards opposite the barrel 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 in [Fig.3].

[0099] With reference in particular to figures 3 and 4, the barrel 60 successively has, along the elevation axis A-A', an external region 66 for producing a seal between the collar 62 and 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 barrel 60 has, along the 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 of the distribution mechanism 22.

[0102] The outer sealing region 66 is adjacent to the collar 62. It comprises 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 portion 52.

[0105] By 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 to the outer edge 42 of the neck 26, the stress force being directed towards the interior 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 come to bear on 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 traction 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 comprises at least one axial notch 78 allowing gas to circulate through the annular projection 76, in particular 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 interior volume 28 by shape effect between the annular projection 76 and the concave intermediate region 48 guarantees 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 seen in [Fig.4], the outer region for producing a seal 66 and the intermediate mechanical holding region 68 define an annular constriction 80 at their junction.

[0113] The intermediate mechanical holding 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 wedging the distribution mechanism 22, projecting into the central housing 74.

[0114] The H-shaped protruding structure 82 is intended to ensure the wedging of the connector 18 in the neck 26 when the connector 18 is in its inserted position. Each H-shaped protruding structure 82 extends from the external surface 73 into the intermediate mechanical holding region 68.

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

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

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

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

[0119] The intermediate amount 94 also connects the fins 96, 98 within a doublet 90, 92 between them.

[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 projecting H-shaped structures 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-shaped 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 air passage between the interior 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 barrel 60 defines a joint plane (not shown) passing through the elevation axis A-A' between two H-shaped structures 82. This joint plane results from the demolding of the connector 18 during its manufacture. Advantageously, each vent 84 is formed by a shape within the joint plane, such that the joint plane passes through each vent 84.

[0125] The integration of the vents 84 in the joint plane avoids having small diameter pins in the mold which could easily break and generate connectors 18 on which vents 84 would be missing.

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

[0127] Each lower fin 86 is disposed below each vent 84 on the outer surface 73 in the intermediate mechanical holding region 68. Each lower fin 86 extends axially from each vent 84 to the junction between the intermediate mechanical holding region 68 and the dip tube connection region 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 holding region 68. The upper internal stop 88 is arranged under the or each vent 84 along the elevation axis A-A'.

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

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

[0131] The receiving cylinder 100 is adjacent to the intermediate mechanical holding region 68. It comprises a lower annular stop 104 for wedging 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 here having a conical end 106.

[0134] The connector 18 is advantageously made of a single material and is made of an elastically deformable material, in particular a material whose Young's modulus is 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 the engagement of the fixing cylinder 102 in its outer end.

[0137] The dip tube 20 defines an inner conduit 108 connecting the inner 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 interior volume 28. It has a length adapted so that its lower end plunges 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 lower cost by an extrusion process, and made of a material such as polyethylene.

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

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

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

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

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

[0145] The transverse connecting wall 122 projects perpendicular to the axis of the external hoop 118 into the intermediate space between the external hoop 118 and the internal crown 120. It has an annular shape which closes the intermediate space.

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

[0147] In the mounted position, the transverse connecting wall 122 is arranged in sealed 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 sealing.

[0148] This sealing is ensured with a minimal 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 intake of air into the interior volume 28 when the dispensing mechanism 22 is actuated is carried out exclusively in a controlled manner by the or each vent 84. This limits the risk of cosmetic product leaking out of the volume. interior 24.

[0150] Furthermore, the assembly / disassembly of the dispensing mechanism 22 to refill the bottle 16 is simplified and made more reliable by the absence of a seal, avoiding the user having to handle such a seal (in particular soiled by cosmetic product) and / or having to supply it to replace it.

[0151] The external hoop 118 defines a volume for receiving the pump body 112, the pump body 112 successively comprising, 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 sealing contact with the inner surface 72 of the intermediate mechanical holding region 68 of the connector 18 by its cooperation with the upper internal stop 88. The second sleeve 128 is in sealing contact with the inner surface of the region of connection to the dip tube of the connector 70 by its cooperation with the lower annular stop 104.

[0153] The two sleeves 126, 128 define a space for receiving a pump motor (not shown) intended to pump the liquid present in the interior volume 28 of the bottle 16 during the movement of a mobile element of the pump motor actuated by the actuating member 114.

[0154] The actuating member 114 comprises a cover 130 and a dispensing nozzle 132.

[0155] The actuating member 114 projects outwardly from the internal support ring 120.

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

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

[0158] The cap 116 is maneuverable between a position for covering the dispensing mechanism 22 and a position for using the dispensing 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 disassembly of 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 relative to the internal volume 137. The internal volume 137 contains at least one refill dose of fluid 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 maintenance of the axis B-B' of the filling container 14 when the latter is resting 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 relative 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 of between 25° and 55° relative 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 dispensing 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 of a single piece of flexible material, allowing a user to apply pressure to the storage cavity 134 by squeezing between his 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 visible 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 towards the outside, a cannula 150 projecting relative to the transverse wall 148 and a member 152 for partially closing 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 opening for insertion of 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 closure member partial 152 to the peripheral edge of the transverse wall 148.

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

[0174] The cannula 150 projects from the transverse wall 148 opposite the cylindrical skirt 146. It defines an orifice 156 for dispensing 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, the cannula being directed downwards, the cosmetic product is retained in the dispensing orifice 156 by capillarity.

[0176] In a variant visible in [Fig.7], the cannula 150 has an internal partition 158. The internal partition 158 is arranged inside the dispensing orifice 156 and creates two separate circulation channels 160 for the fluid cosmetic product. The separate circulation channels 160 for the cosmetic product having a transverse extent less than the internal diameter of the dispensing orifice 156, the retention by capillarity of a cosmetic product of lower viscosity is ensured.

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

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

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

[0180] Each longitudinal rib 162 advantageously has a radial extent increasing from the free outer edge of the partial closure member 152 towards the inner edge of the partial closure member 152. Each longitudinal rib 162 advantageously has a thickness increasing from the free outer edge of the partial closure member 152 towards the inner edge of the partial closure 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, taking it radially relative to the axis B-B' from the cylindrical outer surface of the skirt.

[0182] In the example of [Fig.6], the partial closure member 152 comprises a plurality of longitudinal ribs 162 distributed angularly around the axis of the container B-B' on the partial closure 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 fluidically 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 have been introduced into the central receiving housing 74 of the connector 18 visible in [Fig. 5]. The cannula 150 is inserted in a sealed manner in particular at the level of the lower annular stop 104 in the connection region 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 region of connection 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 visible in [Fig.5], in the filling position, the partial closure 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 holding region 68.

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

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

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

[0191] The minimum air passage 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 level of 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 size the sections of the upstream path 164 (and the downstream path 166 defined below) depending on the viscosity of the product contained in the bottle 16 so that the latter 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 in particular be measured at 25°C using a viscometer or a mechanical rheometer, preferably having a cone-plate or parallel plate structure. Preferably, the viscosity of the product is measured at 25°C and at a rotation speed of 200 revolutions per minute. The viscosity of the cosmetic product may alternatively be measured at 25°C using an optical rheometer, such as for example a DWS RheoLab™ device marketed by the company LS Instruments®, set at a frequency of 1000 Hz (1000 s1). Furthermore, the cosmetic product may have the nature of a Newtonian fluid.

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

[0197] The minimum air passage section of the upstream path 164 is also chosen to prevent the rise of fluid cosmetic product coming from the interior volume 28 in the upstream path 164 by capillary effect.

[0198] This ensures that the filling of cosmetic product into the interior 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 when filling the interior volume 28, for example because he cannot view this quantity through the side wall 30 of the bottle 16, the overflow of cosmetic product from 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-sealed contact between the partial closure member 152 and the barrel 60, the non-sealed contact being able in particular to be obtained by the presence of a structure on the wall of the partial closure member 152 and / or the barrel 60, such as a roughness for example obtained by hornbeam graining, a precise or particular dimensional geometry (for example example triangular or oval) delimiting a space between the partial closure member 152 and the barrel 60 or by the choice of a pair of materials preventing the creation of a sealed contact between the partial closure member 152 and the barrel 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-sealed contact between the collar 62 and the transverse wall 148, the non-sealed contact being able in particular to be obtained by the presence of a structure on the wall of the collar 62 and / or of 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 production of a sealed 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 interior volume 28 of the bottle 16 to the exterior of the device 12 for packaging and dispensing a fluid cosmetic product, the air circulation path allowing the air to be evacuated when filling the interior volume 28 of the bottle 16.

[0204] A method of filling the packaging and dispensing device 12 with 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 actuate the actuating member 114 of the dispenser in order to activate the pump motor and dispense a dose of cosmetic product contained in the interior volume 28 of the bottle 16 through the dip tube 20, the pump motor, and the dispensing nozzle 132.

[0207] An air inlet occurs through the pump motor into the connector 18, then through the vents 84 into the interior volume 28 to compensate for the dose of cosmetic product dispensed.

[0208] When the interior volume 28 is to be refilled with cosmetic product, the dispensing mechanism 22 is moved into 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 grasps a filling container 14 having an internal volume 137 containing 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, below the storage container 134.

[0212] The cosmetic product is then present in the access channel 144 to the interior volume of the filling container 14, limiting the presence of gas at the start of 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 sealed 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 his 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, then the dip tube 20 to the internal volume 28 of the bottle 16.

[0215] The entry of cosmetic product into the interior 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 outside the packaging and dispensing device 12. This maintains atmospheric pressure within the interior volume 28 of the bottle 16.

[0216] The interior 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 blockage when applying pressure and the cosmetic product is unable to flow, avoiding any overflow, as described above.

[0217] The user then removes the cannula 150 from the lower annular stop 104 and places 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, then optionally moves the cap 116 into its covering position.

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

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

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

[0222] This filling is carried out in a very practical manner by the same dip tube 20 which is used to take up the cosmetic product during its dispensing by actuating the dispensing mechanism 22. The filling is carried out without having to monitor the level of the cosmetic product and by keeping the 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 to each upstream path 164 avoids or greatly limits the risk of overflow.

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

Claims

Claims

1. Cosmetic product use 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 interior volume (28) intended to contain a fluid cosmetic product, the bottle (16) having a neck (26) defining a passage for access to the interior volume (44), - a connector (18) inserted into the neck (26), the connector (18) defining a central housing (74) for receiving a removable dispensing mechanism (22) for the fluid cosmetic product, - a dip tube (20) extending the connector (18), the dip tube (20) being received in the interior 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) comprises a dispensing head (136) provided 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).,

2. Cosmetic product use kit (10) according to claim 1, wherein the contact between the cannula (150) and the connector (18) and / or the dip tube (20) is sealed in the filling position.

3. Cosmetic product use kit (10) according to any one of the preceding claims, in which the dip tube (20) is a separate part of the connector (18), assembled on the connector (18).

4. A cosmetic product use kit (10) according to any preceding claim, wherein the refill 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 kit (10) according to any one of the preceding claims, wherein the connector (18) comprises a barrel (60) defining the central housing (74), the barrel (60) defining at least one air passage vent (84) connecting the interior volume (28) of the bottle and the central housing (74) of the connector (18).

6. Cosmetic product use kit (10) according to claim 5, wherein the dispensing head (136) comprises at least one partial closure member (152) of the or each air passage vent (84), arranged around the cannula (150), the partial closure member (152) being arranged opposite the air passage vent (84) in contact with the barrel (60) in the central housing (74) in the filling position.

7. A cosmetic product use kit (10) according to claim 6, wherein the partial sealing member (152) is a cylindrical peripheral skirt extending coaxially around the cannula (150).

8. Cosmetic product use kit (10) according to any one of claims 6 or 7, wherein in the filling position, the partial closure 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.

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

10. Cosmetic product use kit (10) according to any one of claims 8 or 9, in which the connector (18) comprises a collar (62) projecting at an outer end of the barrel (60) to be applied to an outer edge (42) of the neck (26), the dispensing head (136) comprising a transverse wall (148), the cannula (150) projecting relative to 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.

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

12. A cosmetic product use kit (10) according to any one of claims 8 to 11, 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 allow the passage of air while preventing the passage of the fluid cosmetic product.

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

14. Cosmetic product use kit (10) according to any one of the preceding claims, in which the cannula (150) defines a dispensing orifice (156) for the fluid cosmetic product, connected to the internal volume (137), the cannula (150) comprising an internal partition (158) arranged in the orifice (156) and separating the internal orifice (156) into at least two separate channels (160) for circulation of the fluid cosmetic product within the orifice (156).

15. A method of 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, - flowing the fluid cosmetic product contained in the internal volume (137) of the filling container (14) to through the cannula (150), - filling the internal volume (28) of the bottle (16) via the dip tube (20).

16. A method of filling a cosmetic product according to claim 15, wherein the connector (20) comprises a barrel (60) defining the central housing (74), the barrel (60) defining at least one vent (84) for the passage of air between the interior volume (28) of the bottle (16) and the central housing (74), the dispensing head (136) comprising at least one partial closure member (152) for the or each vent (84) arranged around the cannula (150), the partial closure member (152) partially blocking the vent (84) from the central housing (74) in the filling position, the partial closure member (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 interior volume (28), the evacuation of the air contained in the interior volume (28) of the bottle (16) successively through the vent (84), then through the upstream path (164),filling being prevented when the fluid cosmetic product reaches the upstream path (164).,

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