Cosmetic product packaging assembly, packaging and dispensing device, refill and associated assembly method

Abstract

Cosmetic product packaging assembly, packaging and dispensing device, refill and associated assembly method The assembly comprises: a bottle (16) having a neck (26) having an internal surface (38) defining an access passage to an interior volume (28), a connector (18) comprising a barrel (60), a collar (62) and at least one radial projection extending from the barrel (60), The internal surface (38) of the neck (26) defines at least one concave region (48). The or each radial projection is suitable for pressing against the concave region (48) of the internal surface (38) when the collar (62) is arranged to bear on an edge (42) of the neck (26). The concave region (48) cooperates with the or each radial projection to generate an axial stress force of the collar (62) on the external edge (42) towards the interior volume (28). Figure for abstract: Figure 3

Description

Title of the invention: Cosmetic product packaging assembly, packaging and dispensing device, refill and associated assembly method

[0001] The present invention relates to a cosmetic product packaging assembly comprising: - a bottle defining an interior volume for receiving a fluid cosmetic product and a neck having an internal surface defining an access passage to the interior volume extending along an elevation axis and opening at an external edge of the neck; - a connector comprising a barrel intended to be inserted into the access passage of the neck, a collar projecting at an outer end of the barrel to apply to the outer edge of the neck and at least one radial projection extending from the barrel.

[0002] 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.

[0003] 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 November 30, 2009, relating to cosmetic products.

[0004] 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.

[0005] 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.

[0006] 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.

[0007] 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 carbon footprint of packaging.

[0008] Consumers who habitually use a cosmetic product must make recurring purchases of packaging containing the same product. cosmetics, these packagings being mostly single-use.

[0009] 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.

[0010] 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.

[0011] These complex elements, in particular the pump, are difficult to recycle.

[0012] To limit the quantity 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.

[0013] 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.

[0014] Such packaging, however, does not give complete satisfaction. Indeed, the assembly and disassembly of the dispensing mechanism is a manipulation which is carried out directly by the user. To simplify assembly / disassembly, and to guarantee a seal for the product during disassembly and after assembly, it is known from JP6609515 to maintain in the container a connector which carries the dip tube.

[0015] However, this connector must be securely fastened in the neck to prevent the connector from being removed when the pump is disassembled. If the connector is not securely fastened, the user may get their hands dirty trying to reattach it, which is not desirable.

[0016] Furthermore, the JP6609515 connector is very complex, and has many parts ensuring on the one hand, a robust assembly and on the other hand, an effective seal. The multitude of parts involved, in particular the need to correctly position sealing gaskets, makes setting up a recharge tedious for the user.

[0017] Other product packagings comprising refills are described in JP6164937B2, JP5578545B2, JP5578545B2, JP6023861B1, FR2927888A1, FR2931462A1, JP5250492B2, EP2409774A2 and EP2105209B1.

[0018] An aim of the invention is therefore to provide a cosmetic product packaging assembly which allows a user to reuse the dispensing mechanism several times, while ensuring a reliable and sealed connection of a product refill, while limiting the risk of contact with the cosmetic product.

[0019] To this end, the invention relates to a cosmetic product packaging assembly of the aforementioned type, characterized in that the internal surface of the neck defines at least at least one concave region, the or each radial projection being capable of being applied against the concave region of the internal surface when the collar is arranged to bear on the edge of the neck, the concave region cooperating with the or each radial projection to generate an axial stress force from the collar on the external edge towards the internal volume.

[0020] The shape effect between the radial projection and the concave region naturally biases the radial projection toward the interior of the container. This generates a significant biasing force toward the interior volume, which firmly presses the collar against the outer rim of the neck (sometimes referred to as the "lip") to establish a robust and sealed contact between the collar and the outer rim.

[0021] In particular, the biasing force results from the fact that the diameter of the concave region increases towards its bottom, which decreases the pressure exerted on the radial projection as it moves towards the bottom of the concave region.

[0022] This stress force pushes the collar downwards and creates the necessary tension for applying the collar to the outer edge of the neck, which guarantees not only contact but also application pressure ensuring sealing at the advantageously linear and peripheral contact with the outer edge of the neck.

[0023] The biasing force therefore ensures that the connector is held securely in position in the neck and that the collar is firmly applied to the outer edge. This hold is particularly effective, especially when a user is handling the dispensing mechanism for assembly and disassembly.

[0024] The support of the collar on the outer edge generally makes it possible to avoid the presence of intermediate parts, in particular joints between the removable dispensing mechanism and the connector, which would be likely to be incorrectly repositioned when replacing the dispensing mechanism on a product refill.

[0025] For this purpose, the axial distance separating the inner surface of the collar adapted to bear on the outer edge of the neck and the portion of the radial projection closest to this surface is advantageously less than the axial distance separating the outer edge of the neck and the portion of the concave region closest to this outer edge. Thus, in the assembled position of the connector in the neck of the bottle, with the collar bearing on the outer edge of the neck and the radial projection constrained in the concave region, the axial portion of the connector located between the inner surface of the collar and the radial projection is elastically stressed in traction along the elevation axis, so that the inner surface of the collar is pressed against the outer edge of the neck, thereby improving the seal at this interface.

[0026] According to a variant, the filling kit for a cosmetic product according to the invention comprises the following feature: - the contact between the collar and the outer edge of the neck is watertight along the outer edge when the concave region cooperates with the or each radial projection.

[0027] Since contact is guaranteed between the collar and the outer edge of the bottle when the concave region cooperates with the or each radial projection, the axial stress force guarantees the permanent presence of a sealed contact, even during handling by a user. Thus, it is possible to dispense with the presence of a seal between the barrel of the connector and the neck of the bottle below the collar. The or each radial projection can therefore be designed in a simple and non-sealed manner, and no seal is necessary. This effect is obtained even if the outer edge of the neck has an irregular surface, for example because the bottle is made of glass.

[0028] This specific geometry guarantees a seal without the presence of blocking or holding elements of the connector. Thus, thanks to this static seal, the user can open the bottle while maintaining a seal at the connector.

[0029] According to a variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - the radial projection extending from the barrel is an annular projection.

[0030] The presence of an annular projection maximizes the area of cooperation with the concave region of the neck and consequently ensures an axial biasing force from the collar towards the inner volume distributed angularly over the entire outer edge. This guarantees a robust seal between the collar and the outer edge in all angular positions along the outer edge, in particular in the event of rib irregularity of the outer edge.

[0031] According to a variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - the annular projection defines an axial notch, the contact between the annular projection and the internal surface being non-tight opposite the axial notch.

[0032] Since the seal between the connector and the neck of the bottle is guaranteed at the level of the collar and the outer edge, it is not necessary for the annular projection to guarantee this seal. It is therefore possible to provide it with at least one axial notch which facilitates the wedging of the barrel of the connector in the neck when it is put in place, by allowing a local circumferential deformation of the annular projection.

[0033] According to a variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - the concave region has at least one undercut portion below to which the or each radial projection applies, the axial stress force resulting from the cooperation between the or each radial projection and the undercut portion.

[0034] The undercut portion effectively retains the or each radial projection and the undercut profile ensures the inward direction of the axial stress force applied to the collar, even if the profile of the concave region varies locally due to manufacturing constraints.

[0035] Such an arrangement responds in particular to the specific problems which arise during the production of the glass bottle. In this case, the bottle which is blown is subject to significant technical constraints which limit the forming possibilities. Thus, the production of a screw thread in the neck which would allow a part to be screwed inside the neck or any other attachment or holding element inside the neck is not feasible.

[0036] Advantageously, the concavity of the neck results from the exploitation of a natural phenomenon which appears during the manufacture of the glass neck, the manufacture of such an undercut part is therefore simplified.

[0037] According to a variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - the connector is configured to removably receive a mechanism for dispensing the fluid cosmetic product, the dispensing mechanism advantageously containing a pump motor.

[0038] The removable reception of a dispensing mechanism by the connector ensures simple and reliable dispensing of the fluid cosmetic product contained in the bottle, while allowing easy replacement of the bottle with a new bottle of a refill when the cosmetic product is exhausted in the initial bottle.

[0039] According to a variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - the barrel defines a central housing delimited by an internal surface of the barrel, the or each radial projection projecting away from the central housing from an external surface of the barrel, the barrel defining a vent opening into the central housing and into the external surface axially away from the radial projection.

[0040] The design of the connector with a barrel intended to be inserted into the neck of the bottle, in contact with the internal surface of the neck in the presence of the or each retaining projection, the barrel defining an internal housing for receiving the dispensing mechanism, offers a particularly simple design, which can be produced in a single piece.

[0041] The presence of at least one air passage vent through the barrel makes it possible to equalize the pressure between the central housing of the connector and the interior volume of the bottle when dispensing fluid cosmetic product from the interior volume, which guarantees smooth and leak-free dispensing. It also allows the bottle to be filled via the connector and the dip tube, ensuring air evacuation through the vent(s).

[0042] The placement of the vent in the external surface of the barrel is carried out so as to limit the risk of the air inlet for the vent becoming obstructed by a build-up of formula which would form between the external surface of the barrel and the internal surface of the neck of the bottle. In particular, the vent is not placed in the area where the space between the external surface of the barrel and the internal surface of the neck is the smallest.

[0043] According to one variant, the packaging assembly for a cosmetic product according to the invention comprises at least one of the following characteristics: - the barrel has an external region for creating a seal and an intermediate region for mechanical maintenance; - the or each radial projection is located in the region for producing a seal, the collar projecting radially from an outer edge of the region for producing a seal.

[0044] The constitution of the connector with two successive regions, each region respectively providing the seal with the neck of the bottle and the mechanical wedging in the neck of the bottle, offers better efficiency of each of the functions of the connector and possibly, a lower manufacturing cost.

[0045] The collar and the or each radial projection are thus placed in the region for producing a seal, separately from the mechanical wedging and centering functions which are present in the mechanical holding region.

[0046] According to one variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - the barrel comprises a plurality of wedging fins projecting towards the internal surface from the intermediate mechanical holding region.

[0047] The packaging assembly being intended to receive a dispensing mechanism or a cap in a removable manner, the wedging fins make it possible to retain the connector inserted and centered in the neck of the bottle during the various manipulations of the packaging assembly.

[0048] According to one variant, the packaging assembly for a cosmetic product according to the invention comprises the following characteristic: - it has a dip tube extending the barrel axially.

[0049] The dip tube extends the barrel of the connector so that it is always in contact with fluid cosmetic product, even when the product level in the bottle is low. This limits the loss of product, once the dispensing through the distribution mechanism is no longer possible.

[0050] The invention also relates to a device for packaging and dispensing cosmetic products comprising:

[0051] - a packaging assembly as defined above,

[0052] - a removably mounted cosmetic product dispensing mechanism in the connector, resting on the collar.

[0053] The invention also relates to a cosmetic product refill, the refill comprising: - a packaging set as defined above; - a plug for closing the access passage removably mounted on the connector, in watertight contact with the collar.

[0054] The invention also relates to a method of mounting such a packaging assembly, the method comprising the following steps: - provision of a bottle defining an interior volume for receiving a fluid cosmetic product and a neck having an internal surface defining an access passage to the interior volume extending along an elevation axis and opening at an external edge of the neck; - inserting the barrel of a connector into the access passage of the neck, the connector comprising a flange projecting at an outer end of the barrel to apply to the outer edge of the neck and at least one radial projection extending from the barrel;

[0055] characterized in that the internal surface of the neck defines a concave region, the method comprising the application of the or each radial projection against the concave region to place the collar in abutment on the outer edge and the generation of an axial biasing force of the collar on the outer edge towards the interior volume by cooperation between the or each radial projection and the concave region.

[0056] The invention will be better understood on reading the following description, given solely as a non-limiting example, and made with reference to the appended drawings, in which:

[0057] [Fig-1] [Fig.l] is a view, taken in section along a median vertical plane, of a cosmetic product packaging and dispensing device according to the invention, provided with a removable dispensing mechanism,

[0058] [Fig.2] [Fig.2] is a view, taken in section along a median vertical plane, of a cosmetic product refill according to the invention,

[0059] [Fig.3] [Fig.3] is an enlarged view, taken in section along a median vertical plane, of a packaging assembly of the packaging and dispensing device or of the refill,

[0060] [Fig.4] [Fig.4] is a perspective view of a connector extended by a tube plunger intended to be mounted in the packaging assembly or in the refill,

[0061] [Fig.5] [Fig.5] is a vertical sectional view of the refill closure cap,

[0062] [Fig.6] [Fig.6] is an enlarged view of [Fig.2] with respect to the sealing embodiment regions.

[0063] 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 or the refill. 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 outside of the interior volume.

[0064] An example of a cosmetic product packaging assembly 11 according to the invention is visible in Figures 1 to 3.

[0065] This packaging assembly 11 is intended to form a part either of a cosmetic product packaging and dispensing device 12, visible in [Fig. 1], or of a refill 200, visible in [Fig. 2], intended to replace a packaging assembly 11 of a packaging and dispensing device 12 in which the cosmetic product is exhausted or expired.

[0066] As seen in [Fig.l], the packaging and dispensing device 12 comprises a packaging assembly 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.

[0067] 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.

[0068] The bottle 16 is preferably made in one piece.

[0069] 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'.

[0070] 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].

[0071] The reservoir 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.

[0072] The side wall 30, the bottom 32 and the shoulder 34 define the interior volume 28.

[0073] The side wall 30 extends along the elevation axis A-A'. It is for example formed from a rigid material and can receive ornaments. Advantageously, the wall lateral 30, or even the entire reservoir 24 and the neck 26, is (are) formed of glass.

[0074] The bottom 32 defines a support for the bottle 16 when it is placed on a surface perpendicular to the elevation axis A-A'. Here it has a curved surface 36 defining a hollow.

[0075] As visible in [Fig.3], the neck 26 projects from the shoulder 34 along the elevation axis A-A'.

[0076] 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'.

[0077] 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.

[0078] The minimum diameter of the access passage 44 is for example between 9.5 and 25 mm, and in particular close to 12 mm.

[0079] 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 when moving along the elevation axis A-A'.

[0080] The concave intermediate region 48 comprises at least one undercut portion 52, 54.

[0081] 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.

[0082] 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'.

[0083] 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'.

[0084] The external surface 40 comprises an external thread 56 on which the distribution mechanism 22 is intended to be mounted reversibly.

[0085] 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.

[0086] 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.

[0087] Advantageously, the bead 58 is annular around the elevation axis A-A'.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] In this example, the collar 62 is devoid of a fallen edge extending opposite the barrel 26.

[0093] 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.

[0094] 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].

[0095] 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.

[0096] 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.

[0097] The internal surface 72 defines a central receiving housing 74 of the distribution mechanism 22.

[0098] 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.

[0099] The annular projection 76 is applied against the internal surface 38 of the neck 26 in the inserted position.

[0100] 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.

[0101] 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'.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] The axial stress force in the inserted position is in particular between 0.5 N and 10 N.

[0106] 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.

[0107] 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.

[0108] As visible in [Fig.4], the external region for producing a seal 66 and the intermediate mechanical holding region 68 define an annular constriction 80 at their junction.

[0109] 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 setting the distribution mechanism 22, projecting into the central housing 74.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] Each pair of fins 90, 92 comprises a first fin 96 and a second fin 98 which are parallel, arranged side by side.

[0114] 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.

[0115] The intermediate amount 94 also connects the fins 96, 98 within a doublet 90, 92 between them.

[0116] 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.

[0117] 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'.

[0118] The axial notch 78 of the annular projection 76 opens here opposite the H-shaped structure 82.

[0119] 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.

[0120] 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, so that the joint plane passes through each vent 84.

[0121] 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.

[0122] In the example of [Fig.4], the connector 18 defines two opposite vents 84, located on either side of each H 82 structure.

[0123] 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.

[0124] 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'.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] The diameter of the receiving cylinder 100 is greater than the diameter of the fixing cylinder 102.

[0129] The fixing cylinder 102 extends internally to a free end here having a conical end 106.

[0130] 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.

[0131] The dip tube 20 is cylindrical. It has an outer end engaged on the fixing cylinder 102 and a free inner end.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] The external hoop 118 is cylindrical with an axis corresponding to the elevation axis A-A' in the mounted position.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] This sealing is ensured with a minimal number of parts and in particular without the presence of sealing joints, 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.

[0145] 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 interior volume 24.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] The actuating member 114 comprises a cover 130 and a dispensing nozzle 132.

[0151] The actuating member 114 projects outwardly from the internal support ring 120.

[0152] 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.

[0153] The cap 116 defines an interior covering space.

[0154] The cap 116 is maneuverable between a position for covering the dispensing mechanism 22 and a position for using the dispensing mechanism 22.

[0155] [Fig.2] illustrates a refill 200 comprising a packaging assembly 11 intended to replace the packaging assembly 11 of the packaging and dispensing device 12 when the cosmetic product it contains is exhausted or expired.

[0156] The packaging assembly 11 of the refill 200 comprises a bottle 16, a connector 18, and a dip tube 20 mounted at an inner end of the dip tube 20. The bottle 16, the connector 18 and the dip tube 20 of the refill 200 are advantageously identical respectively to the bottle 16, the connector 18 and the dip tube 20 of the packaging and dispensing device 12 and will not be described in more detail.

[0157] With reference to Figures 2, 5, and 6, the refill 200 further comprises a cap 202 removably mounted on the bottle 16 of the packaging assembly 11.

[0158] The cap 202 is intended to seal the access passage 44 to the interior volume 28 defined by the neck 26 of the bottle 16 during storage and transport of the refill 200. For use of the refill 200, the cap 202 is movable between a position for sealing the access passage 44 and a position for releasing the access passage 44.

[0159] As visible in [Fig.5], the cap 202 comprises an external skirt 208 intended to be fixed on the neck 26 of the bottle 16, an external wall 206 for providing sealing, and a closure member 204 of the or each vent 84 of the connector 18, projecting from the external wall 206 and extending radially inside the external skirt 208.

[0160] Advantageously, the external skirt 208 is cylindrical and extends around the elevation axis A-A' when the plug 202 is in its position for sealing the access passage 44.

[0161] The external skirt 208 has an internal thread 210 on its internal surface 212, the internal thread 210 being complementary to the external thread 56 of the neck 26.

[0162] The outer wall 206 here extends perpendicular to the elevation axis A-A' in the closed position. It closes the outer skirt 208.

[0163] The outer sealing wall 206 comprises on its inner surface, a protuberance 214 and a groove 216.

[0164] The protrusion 214 is annular and projects inwardly into the outer skirt 208.

[0165] The protuberance 214, in particular made of the same material as the rest of the cap 202, is advantageously composed of a material such as polypropylene or polyethylene terephthalate.

[0166] The groove 216 is set back in the internal surface of the external wall 206. It has a ring shape.

[0167] In the sealed closing position, the annular relief 64 of the collar 62 is received in the groove 216, as visible in [Fig.6].

[0168] The groove 216 advantageously has a maximum depth greater than the maximum height of the annular relief 64 of the collar 62, in particular between 105% and 110% of the maximum height of the annular relief 64 of the collar 62.

[0169] The depth of the groove 216 and the height of the collar 62 are measured in projection on the elevation axis A-A'.

[0170] Advantageously, the groove 216 is radially further from the center of the outer wall 206 than the protuberance 214.

[0171] The closure member 204 is here formed of an internal skirt projecting from the external wall 206 on the side of the external skirt 208. The internal skirt is cylindrical and solid.

[0172] The closure member 204 is radially closer to the center of the outer wall 206 than the protrusion 214 and the groove 216. The protrusion 214 and the groove 216 are thus arranged in the intermediate space between the outer skirt 208 and the closure member 204.

[0173] The height of the closure member 204 is generally less than that of the external skirt 208. It is for example between 20% and 95% of the height of the external skirt 208, in projection on the elevation axis A-A'.

[0174] In the sealed closing position, the cap 202 is mounted by screwing onto the neck 26 of the bottle 16, the internal thread 210 being engaged in the external thread 56. As visible in [Fig.2], the closure member 204 is arranged opposite the or each air passage vent 84, the closure member 204 closing the or each vent 84. The risk of cosmetic product rising through a vent 84 is therefore limited.

[0175] As seen in [Fig.6], in the sealed closure position, the contact between the protrusion 214 projecting from the cap 202 and an outer surface of the collar 62 of the connector 18 defines a first annular sealing region 218 on the collar 62.

[0176] Advantageously, the plug 202, and therefore the protrusion 214, are made of a relatively rigid and non-elastically deformable material. The watertight nature of the contact between the protrusion 214 and the collar 62 is ensured by the cooperation between the rigid material making up the plug 202 and the elastically deformable material making up the connector 18.

[0177] In this closed position, the annular relief 64 present on the collar 62 is housed in the groove 216 of the cap 202.

[0178] Advantageously, the annular relief 64 remains arranged away from the cap 202, which prevents it from being deformed, in particular irreversibly, during storage and transport of the refill 200. Thus, the annular relief 64 remains intact, and in particular not crushed or not deformed, before the first installation of the dispensing mechanism 22, which facilitates the establishment of a reliable seal after assembly of the dispensing mechanism 22.

[0179] In the mounted position of the distribution mechanism 22, visible in [Fig.l], the cooperation between the annular relief 64 of the collar 62 and the transverse wall 122 of the distribution mechanism 22 defines a second annular sealing region 220 on the collar 62.

[0180] The second annular sealing region 220 is disposed spaced apart from and around the first sealing region 218.

[0181] The first annular sealing region 218 is exclusively intended for creating a seal between the plug 202 and the collar 62 when the plug 202 is in its position for sealing the access passage 44.

[0182] The second annular sealing region 220 is exclusively intended for creating a seal between the distribution mechanism 22 and the collar 62.

[0183] Preferably, the second annular sealing region 220 is located axially opposite the outer edge 42 of the neck 26, in particular when this outer edge 42 has a bead 58. This is particularly useful when the distribution mechanism 22 has a flat transverse surface for achieving sealing.

[0184] An example of a method for manufacturing and assembling a refill 200 will now be described.

[0185] Initially, a pre-assembly of the dip tube 20, the connector 18 and the plug 202 is advantageously carried out to form at least one single-piece movable assembly.

[0186] For this purpose, the dip tube 20 is assembled on the connector 18 by inserting the fixing cylinder 102 of the connection region 70 into the inner conduit 108 of the dip tube 20.

[0187] The closure member 204 of the plug 202 is then inserted into the central receiving housing 74 of the connector 18. It closes each vent 84.

[0188] A bottle 16 having an empty interior volume 28 is provided.

[0189] The interior volume 28 is then filled with fluid cosmetic product, for example by an operator or via an automatic filling nozzle.

[0190] The assembly comprising the stopper 202, the connector 18 and the dip tube 20 is then inserted into the bottle 16, to place the connector 18 in its inserted position, by applying a force along the elevation axis A-A' directed towards the interior volume 28.

[0191] The stopper 202 is then assembled on the neck 26 of the bottle 16. In the example shown in the figures, the thread 210 of the external skirt 208 is engaged on the thread 65 of the neck 26 of the bottle 16.

[0192] The annular projection 76 is inserted into the concave intermediate region 48, under the upper undercut portion 52. This generates, by a shape effect, an axial force urging the collar 72 against the outer edge 42 of the neck 26, and advantageously a sealed contact between the bead 58 and the collar 62.

[0193] The refill 200 is then hermetically sealed, allowing the storage of the refill 200, while avoiding alteration of the fluid cosmetic product.

[0194] A method of using the refill 200 will now be described.

[0195] Initially, when the packaging and dispensing device 12 has a bottle 16 that needs to be replaced, for example because the interior volume 28 has a low level of fluid cosmetic product or the cosmetic product is expired, the user enters a 200 top-up.

[0196] The user maneuvers the plug 202 to move it into its position for releasing the access passage 44.

[0197] As indicated above, the separation between the first annular sealing region 218 and the second annular sealing region 220, as well as the groove 216 present on the cap 202 guarantee that the collar 62 of the refill 200 always has an integral annular relief 64 after disassembly of the cap 202.

[0198] The user then grasps the packaging and dispensing device 12, then maneuvers the dispensing mechanism 22 in order to move it into its disassembled position away from the neck 26.

[0199] The user then grasps the bottle 16 of the refill 200. He then moves the dispensing mechanism 22 to mount it on the neck 26 of the refill 200, in order to place the dispensing mechanism 22 in the mounted position on the refill 200.

[0200] In the mounted position, a seal is formed between the distribution mechanism 22 and the connector 18, by contact between the transverse wall 122 of the distribution mechanism 22 and the annular relief 64 of the collar 62.

[0201] The cosmetic product present in the interior volume 28 of the refill 200 can now be dispensed to the user via the dispensing mechanism 22.

[0202] The cap 202 of the refill 200, as well as the bottle 16, the connector 18 and the dip tube 20 of the packaging and dispensing device 12 can then be recycled, while the dispensing mechanism 22 is reused.

[0203] Thanks to the invention which has just been described, a user can reuse the distribution mechanism 22 several times.

[0204] The cosmetic product packaging assembly 11, used both in the initial packaging and dispensing device 12 and in the refill 200, remains simple in design and use, ensuring reliably, and with a reduced number of parts, a sealed connection respectively with the dispensing mechanism 22 and with the cap 202. The use of the refill 200 is therefore easy for the user, while limiting the risk of contact with the cosmetic product during handling.

[0205] Furthermore, the geometry of the neck 26 and the connector 18 ensures robust fixing of the connector 18 in the access passage 44 of the neck 26, including during erroneous handling by a user.

[0206] The reliability of the seal is also promoted by the radial spacing between, on the one hand, the sealing region 218 between the collar 62 and the plug 202 and, on the other hand, the sealing region 220 between the collar 62 and the distribution mechanism 22.

[0207] Such a refill 200 therefore allows the reuse of the distribution mechanism 22 a large number of times.

[0208] The environmental and economic impact for the packaging and dispensing device 12 is therefore reduced, the dispensing mechanism 22 being one of the most complex parts to recycle. This result is nevertheless obtained while maintaining ease of handling for the user when using a refill.

Claims

Claims

1. Cosmetic product packaging assembly (11) comprising: - a bottle (16) defining an interior volume (28) for receiving a fluid cosmetic product and a neck (26) having an internal surface (38) defining an access passage (44) to the interior volume (28) extending along an elevation axis (A-A') and opening at an outer edge (42) of the neck (26), - a connector (18) comprising a barrel (60) intended to be inserted into the access passage (44) of the neck (26), a collar (62) projecting at an outer end of the barrel (60) to be applied to the outer edge (42) of the neck (26) and at least one radial projection extending from the barrel (60), characterized in that the internal surface (38) of the neck (26) defines at least one concave region (48), the or each radial projection being suitable for being applied against the concave region (48) of the internal surface (38) when the collar (62) is arranged to bear on the edge (42) of the neck (26),the concave region (48) cooperating with the or each radial projection to generate an axial stress force from the collar (62) on the outer edge (42) towards the inner volume (28).,

2. A packaging assembly (11) according to claim 1, wherein the contact between the flange (62) and the outer edge (42) of the neck (26) is sealed along the outer edge (42) when the concave region (48) cooperates with the or each radial projection.

3. A packaging assembly (11) according to claim 2, wherein the radial projection extending from the barrel (60) is an annular projection (76).

4. A packaging assembly (11) according to claim 3, wherein the annular projection (76) defines an axial notch (78), the contact between the annular projection (76) and the inner surface (38) being non-sealing opposite the axial notch (78).

5. A packaging assembly (11) according to any preceding claim, wherein the concave region (48) has at least one undercut portion (52) under which the or each radial projection is applied, the axial biasing force resulting from the cooperation between the or each radial projection and the undercut part (52).

6. A packaging assembly (11) according to any preceding claim, wherein the connector (18) is configured to removably receive a dispensing mechanism (22) for the fluid cosmetic product, the dispensing mechanism (22) advantageously containing a pump motor.

7. A packaging assembly (11) according to any preceding claim, wherein the barrel (60) defines a central housing (74) delimited by an inner surface (72) of the barrel (60), the or each radial projection projecting away from the central housing (74) from an outer surface (73) of the barrel (60), the barrel (60) defining a vent (84) opening into the central housing (74) and into the outer surface (73) axially away from the radial projection.

8. Packaging assembly (11) according to any one of the preceding claims, in which the barrel (60) has an outer region for providing a seal (66) and an intermediate mechanical holding region (68).

9. A packaging assembly (11) according to claim 8, wherein the or each radial projection is located in the sealing region (66), the flange (62) projecting radially from an outer edge of the sealing region (66).

10. Packaging assembly (11) according to one of claims 8 or 9, in which the barrel (60) comprises a plurality of wedging fins (96, 98) projecting towards the internal surface (38) from the intermediate mechanical holding region (68).

11. Packaging assembly (11) according to any one of the preceding claims, comprising a dip tube (20) axially extending the barrel (60).

12. Device (12) for packaging and dispensing a cosmetic product comprising: - a packaging assembly (11) according to any one of the preceding claims, - a dispensing mechanism (22) for a cosmetic product removably mounted in the connector (18), resting on the collar (62).

13. Cosmetic product refill (200) comprising: - a packaging assembly (11) according to any one of claims 1 to 11, - a sealing plug (202) for the access passage (44) removably mounted on the connector (18), in sealed contact with the collar (62).

14. A method of mounting a packaging assembly (11) comprising the following steps: - provision of a bottle (16) defining an interior volume (28) for receiving a fluid cosmetic product and a neck (26) having an internal surface (38) defining an access passage (44) to the interior volume (28) extending along an elevation axis (A-A') and opening at an outer edge (42) of the neck (26), - inserting the barrel (60) of a connector (18) into the access passage (44) of the neck (26), the connector (18) comprising a collar (62) projecting at an outer end of the barrel (60) to be applied to the outer edge (42) of the neck (26) and at least one radial projection extending from the barrel (60), characterized in that the internal surface (38) of the neck (26) defines a concave region (48), the method comprising the application of the or each radial projection against the concave region (48) to place the collar (62) in abutment on the outer edge (42) and the generation of an axial biasing force of the collar (62) on the outer edge (42) towards the interior volume (28) by cooperation between the or each radial projection and the concave region (48).

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