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 internal 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 radial projection(s) are adapted to bear against the concave region (48) of the internal surface (38) when the collar (62) is positioned against an edge (42) of the neck (26). The concave region (48) cooperates with the radial projection(s) to generate an axial force exerted by the collar (62) on the outer edge (42) towards the internal volume (28). Figure for the summary: 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 internal volume for receiving fluid cosmetic product and a neck having an internal surface defining an access passage to the internal volume extending along an axis of elevation and opening onto 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 from one 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 face 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 of 30 November 2009 on 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 in order to help meet global challenges.

[0005] It is therefore essential to design products that reduce the quantity of materials used and / or to replace them 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, notably 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 eco-responsible reusable containers, in particular refillable or re-filled at home or in stores, in order to reduce the carbon footprint of packaging.

[0008] Consumers who regularly use a cosmetic product must make recurring purchases of packaging containing the same cosmetic product, this packaging being mostly for single use.

[0009] Most cosmetic product packaging with simple structures is now made of materials that can be recycled after use, in order to reduce the amount of waste produced.

[0010] However, some packaging has more complex elements, particularly when equipped with dispensing mechanisms, such as pumps mounted on the bottle containing the product.

[0011] These complex components, particularly the pump, are difficult to recycle.

[0012] To limit the amount of waste produced, it is known, for example, from JP6609515 that the dispensing mechanism is mounted removablely on the bottle containing the cosmetic product. Thus, when the cosmetic product in the bottle is used up, the empty bottle can be disassembled and recycled. The pump is then assembled onto a refill of product.

[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] However, such packaging is not entirely satisfactory. Indeed, the assembly and disassembly of the dispensing mechanism is a task performed directly by the user. To simplify assembly / disassembly and ensure product sealing during disassembly and after assembly, it is known to JP6609515 to retain a connector within the container that carries the dip tube.

[0015] However, this connector must be securely fixed in the neck to prevent it from being pulled out when the pump is disassembled. If the connector is not properly fixed, the user is likely to get their hands dirty putting it back in place, which is undesirable.

[0016] Furthermore, the JP6609515 connector is very complex, comprising numerous parts that ensure both robust assembly and effective sealing. The multitude of parts involved, particularly the need to correctly position the sealing gaskets, makes recharging a tedious process for the user.

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

[0018] One object of the invention is therefore to offer a cosmetic product packaging assembly which allows a user to reuse the dispensing mechanism several times, while ensuring a reliable and leak-proof connection of a product refill, 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 one concave region, the radial projection or projection being suitable for applying against the concave region of the internal surface when the collar is positioned to rest on the edge of the neck, the concave region cooperating with the radial projection or projection to generate an axial stress force from the collar on the outer edge towards the inner volume.

[0020] The shape effect between the radial projection and the concave region naturally forces the radial projection inwards towards the container. This generates a significant force towards the internal volume, which firmly presses the collar against the outer edge of the neck (sometimes referred to as the "drinking edge") to establish a robust and watertight contact between the collar and the outer edge.

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

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

[0023] The applied force thus ensures robust retention of the connector in position within the neck and firm application of the collar to the outer edge. This retention is particularly effective, especially when the dispensing mechanism is being handled by a user for assembly and disassembly.

[0024] The support of the collar on the outer edge generally makes it possible to do without the presence of intermediate parts, in particular seals between the removable dispensing mechanism and the connector, which could be incorrectly repositioned when putting the dispensing mechanism back on a product refill.

[0025] To this end, the axial distance separating the inner surface of the collar adapted to bear against 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 against 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 subjected to elastic tension along the axis. elevation, 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 one 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 radial projection(s).

[0027] Since contact is ensured between the collar and the outer edge of the bottle when the concave region engages with the radial protrusion(s), the axial force guarantees a permanent seal, even during handling by a user. Thus, it is possible to eliminate the need for a seal between the connector barrel and the bottle neck below the collar. The radial protrusion(s) can therefore be designed in a simple, non-sealing manner, and no sealing gasket is required. This effect is achieved 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 ensures a seal without the presence of any blocking or retaining elements for the connector. Thus, thanks to this static seal, the user can open the bottle while maintaining a seal at the connector.

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

[0030] The presence of an annular projection maximizes the area of ​​interaction with the concave region of the neck and consequently ensures an axial load force from the collar to the internal volume, distributed angularly along the entire outer edge. This guarantees a robust seal between the collar and the outer edge in all angular positions along the outer edge, particularly in the event of irregularities in the outer edge's dimensions.

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

[0032] Since the seal between the connector and the bottle neck is ensured at the collar and 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 positioning of the connector shaft in the neck during its installation, by allowing a local circumferential deformation of the annular protrusion.

[0033] According to one variant, the packaging assembly for a cosmetic product according to the invention comprises the following feature: - the concave region has at least one undercut part under which the radial projection or projections are applied, the axial stress force resulting from the cooperation between the radial projection or projections and the undercut part.

[0034] The undercut section effectively retains the radial protrusion or protrusions 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 addresses, in particular, the specific problems that arise during the production of the glass bottle. In this case, the blown bottle is subject to significant technical constraints that limit the forming possibilities. Thus, creating a thread in the neck that would allow a part to be screwed inside the neck, or any other attachment or retaining 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 one variant, the packaging assembly for a cosmetic product according to the invention comprises the following feature: - the connector is configured to removably receive a fluid cosmetic product dispensing mechanism, the dispensing mechanism advantageously containing a pump motor.

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

[0039] According to one variant, the packaging assembly for a cosmetic product according to the invention comprises the following feature: - the shaft defines a central housing delimited by an internal surface of the shaft, the or each radial projection projecting out opposite the central housing from an external surface of the shaft, the shaft defining a vent opening into the central housing and into the external surface at an axial distance 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 protrusion, the barrel defining an internal housing for receiving the dispensing mechanism, offers a particularly simple design, which can be made in one piece.

[0041] The presence of at least one air vent through the barrel allows the pressure to be equalized between the central housing of the connector and the internal volume of the bottle during the dispensing of liquid cosmetic product from the internal volume, thus ensuring a smooth and leak-free dispensing. It also allows the bottle to be filled via the connector and the dip tube by ensuring air is expelled through the vent(s).

[0042] The vent is positioned on the outer surface of the barrel in such a way as to limit the risk of the air inlet to the vent becoming obstructed by a buildup of formula that might form between the outer surface of the barrel and the inner surface of the bottle neck. In particular, the vent is not placed in the area where the space between the outer surface of the barrel and the inner surface of the neck is smallest.

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

[0044] The construction of the connector with two successive regions, each region respectively providing sealing with the neck of the bottle and mechanical positioning 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 radial projection or projection are thus placed in the sealing region, separately from the mechanical shimming 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 feature: - the barrel has a plurality of bracing fins projecting towards the inner surface from the intermediate mechanical support region.

[0047] Since the packaging assembly is intended to receive a dispensing mechanism or a cap in a removable manner, the shims allow the connector to be retained 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 feature: - it includes a dip tube extending axially from the barrel.

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

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

[0051] - a conditioning set as defined above,

[0052] - a removablely 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 conditioning set as defined above; - a removable access passage sealing plug on the connector, in a watertight seal against the collar.

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

[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 support on the outer edge and the generation of an axial stress force of the collar on the outer edge towards the inner volume by cooperation between the or each radial projection and the concave region.

[0056] The invention will be better understood upon reading the following description, given solely by way of non-limiting example, and made with reference to the accompanying drawings, in which:

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

[0058] [Fig.2] [Fig.2] is a cross-sectional view 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 cross-section along a median vertical plane, of a conditioning assembly of the conditioning and distribution device or the refill,

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

[0061] [Fig.5] [Fig.5] is a vertical cross-sectional view of the refill's sealing cap,

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

[0063] In all that follows, the terms "inside" and "outside," and "internal" and "external," are understood in relation to the internal volume of the packaging and dispensing device for a cosmetic product or refill. The term "inside" or "internal" associated with an element means that this element is generally closer to or oriented towards the internal volume, whereas the term "outside" or "external" generally means that the element is further away from or oriented towards the outside of the internal volume.

[0064] An example of a cosmetic product packaging assembly 11 according to the invention can be seen in figures 1 to 3.

[0065] This packaging assembly 11 is intended to form part of either a cosmetic product packaging and dispensing device 12, visible in [Fig.1], or 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.1], the conditioning and dispensing device 12 comprises a conditioning assembly including a bottle 16, a connector 18 mounted in the bottle 16, and a dip tube 20 mounted at a free end of the connector 18.

[0067] The conditioning and dispensing device 12 further includes a dispensing mechanism 22, which is here removably mounted on the bottle 16 and in the connector 18 to allow access to the bottle 16 and permit refilling of the bottle 16 through the connector 18 and the dip tube 20.

[0068] Bottle 16 is preferably made in one piece.

[0069] It includes here a reservoir 24 extending along an elevation axis A-A' which is here vertical, and a neck 26 which extends the reservoir 24 along the elevation axis A-A'.

[0070] The reservoir 24 defines an internal volume 28 containing a fluid cosmetic product, the reservoir 24 extending along the elevation axis A-A' visible on the [Fig.1].

[0071] The reservoir 24 has a side wall 30, of polygonal or rounded section, a bottom 32 closing the side wall 30 downwards and a shoulder 34 from which the neck 26 projects upwards.

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

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

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

[0075] As can be seen in [Fig.3], the collar 26 protrudes from the shoulder 34 along the elevation axis A-A'.

[0076] With reference to [Fig.3], the neck 26 has an internal surface 38 directed towards the elevation axis A-A', an external surface 40 opposite the elevation axis A-A' and an external edge 42 (or "drinking") connecting the internal surface 38 to the external surface 40, transversely to the elevation axis A-A'.

[0077] The internal surface 38 defines an access passage 44 to the internal volume 28, the access passage 44 extending along the elevation axis A-A'. It opens inwards into the internal volume 28 and outwards to the outside of the bottle 16.

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

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

[0081] Advantageously, the concave intermediate region 48 is annular and comprises a first upper part 52 undercut, adjacent to the upper region 46 and a second lower part 54 undercut, adjacent to the lower region 50. The first undercut part 52 and the second undercut part 54 are annular.

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

[0084] The external surface 40 has 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 of glass, the outer edge 42 is not flat and includes for example a bead 58 projecting outwards.

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

[0088] As seen in [Fig.4], the connector 18 has an inner barrel 60 and an outer collar 62 projecting radially from the barrel 60.

[0089] The connector 18 is suitable for being mounted in an inserted position in the bottle 16, from an assembly position away from the bottle 16.

[0090] The collar 62 protrudes radially in a continuous manner around the barrel 60. It applies in a tight 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 shaft 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 dropped edge extending opposite the shaft 26.

[0093] The collar 62 defines an annular sealing relief 64 with the distribution mechanism 22, the annular relief 64 projecting outwards opposite the shaft 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 on the [Fig.3].

[0095] With reference in particular to figures 3 and 4, the barrel 60 presents successively, along the elevation axis A-A', an external region 66 for sealing the collar 62 with the external edge 42, an intermediate region 68 for mechanical retention in the neck 26 and an internal region 70 for connection to the dip tube 20.

[0096] The shaft 60 has along successive regions 66, 68, 70, an internal surface 72 directed towards the elevation axis A-A' and an external surface 73 placed opposite the internal surface 38 of the neck 26.

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

[0098] The outer region for the realization of a seal 66 is adjacent to the collar 62. It includes a retaining projection 76 of generally annular shape, the retaining projection 76 extending radially away from the elevation axis A-A' from the external 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 part 52.

[0101] By way of shape effect, the cooperation between the concave intermediate region 48 of the neck 26 and the annular projection 76 of the connector 18 generates a stress force applying the collar 62 on the outer edge 42 of the neck 26, the stress force being directed towards the inner volume 28 along the elevation axis A-A'.

[0102] For this purpose, the axial distance separating the inner surface of the collar 62 adapted to bear against the outer edge 42 of the neck 26 and the portion of the annular projection 76 closest to this surface is advantageously less than the axial distance separating the outer edge 42 of the neck 26 and the portion of the concave intermediate region 48 closest to this outer edge 42.

[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 tension along the elevation axis A-A', so that the inner surface of the collar 62 is pressed against the outer edge of the neck, thereby improving the seal at this interface.

[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 has at least one axial notch 78 allowing gas to flow through the annular projection 76, particularly 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 internal volume 28 by shape effect between the annular projection 76 and the concave intermediate region 48 ensures that the collar 62 is applied tightly to the outer edge 42 of the neck 26 over the entire periphery of the neck 26.

[0108] As can be seen in [Fig.4], the outer region for sealing 66 and the intermediate region for mechanical retention 68 define an annular constriction 80 at their junction.

[0109] The intermediate mechanical retaining region 68 comprises at least one radially projecting structure, here an H-shaped projecting structure 82, at least one air passage vent 84, at least one lower fin 86 and an upper internal stop 88 for shimming the distribution mechanism 22, projecting into the central housing 74.

[0110] The protruding H-shaped structure 82 is designed to secure the connector 18 in the collar 26 when the connector 18 is in its inserted position. Each protruding H-shaped structure 82 extends from the outer surface 73 into the intermediate mechanical retention region 68.

[0111] Each protruding structure in H 82 comprises a first doublet 90 of fins 96, 98, a second doublet 92 of fins 96, 98 and an intermediate circumferential upright 94.

[0112] Each fin 96, 98 of a doublet 90, 92 projects radially from the shaft 60. It extends axially along the intermediate mechanical retention region 68, over the entire length between the outer sealing realization region 66 and the connection region to the dip tube 70.

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

[0114] The first fins 96 of the doublets 90, 92 are adjacent. They are arranged opposite each other, being connected by the circumferential intermediate upright 94.

[0115] The intermediate amount 94 also links the fins 96, 98 within a doublet 90, 92 together.

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

[0121] The integration of the vents 84 into the parting line avoids having small diameter pins in the mold which could easily break and generate connectors 18 which would lack vents 84.

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

[0123] Each lower fin 86 is disposed under each vent 84 on the outer surface 73 in the intermediate mechanical retaining region 68. Each lower fin 86 extends axially from each vent 84 to the junction between the intermediate mechanical retaining region 68 and the connection region to the dip tube 70.

[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 retaining region 68. The upper internal stop 88 is disposed under the vent 84 along the elevation axis A-A'.

[0125] In the inserted position, the fins 96, 98 of each protruding structure in H 82 and the lower fins 86 are applied to the internal surface of the collar 38. The connector 18 is thus kept centered and wedged in the access passage 44.

[0126] The connection region to the dip tube 70 comprises successively along the elevation axis A-A', from the outside to the inside, a receiving cylinder 100 and a fixing cylinder 102.

[0127] The receiving cylinder 100 is adjacent to the intermediate mechanical retaining region 68. It has a lower annular stop 104 for shimming the distribution mechanism 22, which projects radially from the internal surface of the receiving cylinder 100.

[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 having here a conical end 106.

[0130] The connector 18 is advantageously made of and consisting of an elastically deformable material, in particular a material having a Young's modulus between 1 GPa and 3 GPa. This material is, for example, polyethylene or polypropylene.

[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 engaging the fixing cylinder 102 in its outer end.

[0133] The dip tube 20 defines an internal conduit 108 connecting the internal volume 28 of the bottle 16 to the central receiving housing 74 in the inserted position.

[0134] In this position, the dip tube 20 is inserted into the inner volume 28. It has a length adapted so that its lower end dips into the cosmetic product, even when the level of cosmetic product is low in the bottle.

[0135] The dip tube 20 is preferably made of material, advantageously obtained at a lower cost by an extrusion process, and made of a material such as polyethylene.

[0136] The distribution mechanism 22 is reversibly mountable / dismountable between a mounted position on the collar 26 and a dismounted position away from the collar 26.

[0137] As seen in [Fig.1], the distribution mechanism 22 comprises a base 110, a pump body 112 mounted in the base 110, a distribution actuation member 114 operable by a user and optionally a cap 116.

[0138] The base 110 of the distribution mechanism 22 includes an external peripheral ring 118, an internal support and sealing ring 120 disposed in the external ring 118 and a transverse connecting wall 122 connecting the external ring 118 to the internal ring 120.

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

[0140] The internal support ring 120 is arranged coaxially with the external fret 118. It protrudes outwards from an inner edge of the transverse connecting wall 122.

[0141] The transverse connecting wall 122 protrudes perpendicularly to the axis of the outer fret 118 in the intermediate space between the outer fret 118 and the inner ring 120. It has an annular shape which closes the intermediate space.

[0142] The external fret 118 has, under the transverse connecting wall 122, on the side opposite the internal support ring 120, an internal thread 115 complementary to the external thread 56 disposed on the neck 26 of the bottle 16.

[0143] In the mounted position, the transverse connecting wall 122 is arranged in tight contact with the collar 62 of the connector 18. The annular relief 64 of the collar 62 rests on the internal support ring 120 over its entire angular extent to ensure the seal.

[0144] This sealing is ensured with a minimum number of parts and in particular without the presence of sealing gaskets, on the one hand, between the collar 62 and the outer edge 42 of the neck 26 and on the other hand, between the collar 62 and the transverse wall 122.

[0145] Thus, the re-entry of air into the internal volume 28 during the actuation of the distribution mechanism 22 is carried out exclusively in a controlled manner by the vent or vent 84. This limits the risk of leakage of cosmetic product outside the internal volume 24.

[0146] In addition, the assembly / disassembly of the dispensing mechanism 22 to refill the bottle 16 is simplified and made more reliable by the absence of a sealing gasket, avoiding the need for the user to handle such a gasket (especially one soiled by cosmetic product) and / or to procure one for replacement.

[0147] The external flange 118 defines a receiving volume for the pump body 112, the pump body 112 comprising successively along the elevation axis A-A', a first sleeve 126 and a second sleeve 128, the first sleeve 126 having a diameter greater than the diameter of the second sleeve 128.

[0148] In the mounted position, the first sleeve 126 is in watertight contact with the inner surface 72 of the intermediate mechanical retaining region 68 of the connector 18 by its cooperation with the upper internal stop 88. The second sleeve 128 is in watertight contact with the inner surface of the connection region to the plunger tube of the connector 70 by its cooperation with the lower annular stop 104.

[0149] The two sleeves 126, 128 define a space for a pump motor (not shown) intended to pump the liquid present in the internal volume 28 of the bottle 16 when a moving element of the pump motor is moved by the actuation member 114.

[0150] The actuation member 114 includes a hood 130 and a distribution nozzle 132.

[0151] The actuation member 114 protrudes outwards from the internal support ring 120.

[0152] The hood 130 is engaged on the pump motor. It is moveable inwards by a user to actuate the pump motor and pump fluid cosmetic product from the internal volume 28 through the dip tube 20, the connection region 70, then into the pump motor to be conveyed to the dispensing nozzle 132.

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

[0154] The cap 116 is movable between a covering position of the distribution mechanism 22 and a use position of the distribution mechanism 22.

[0155] Figure 2 illustrates a 200 refill comprising a packaging set 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 includes 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 further detail.

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

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

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

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

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

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

[0163] The outer wall 206 for sealing purposes includes on its inner surface, a protrusion 214 and a groove 216.

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

[0165] The protrusion 214, in particular formed from material with the rest of the cap 202, is advantageously composed of a material such as polypropylene or polyethylene terephthalate.

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

[0167] In the sealed closed 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 protrusion 214.

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

[0172] The sealing 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 sealing member 204.

[0173] The height of the obturator 204 is generally less than that of the outer skirt 208. For example, it is between 20% and 95% of the height of the outer skirt 208, projected onto the elevation axis A-A'.

[0174] In the sealed position, the cap 202 is screwed onto the neck 26 of the bottle 16, the internal thread 210 being engaged in the external thread 56. As seen in [Fig.2], the sealing member 204 is positioned opposite the air vent 84, the sealing member 204 sealing the vent 84. The risk of cosmetic product rising through a vent 84 is therefore limited.

[0175] As seen in [Fig.6], in the sealed closed position, the contact between the protrusion 214 protruding from the plug 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 elastically non-deformable material. The sealing nature of the contact between the protrusion 214 and the collar 62 is ensured by the interaction between the rigid material composing the plug 202 and the elastically deformable material composing the connector 18.

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

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

[0179] In the mounted position of the distribution mechanism 22, visible in [Fig.1], 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 away 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 sealing position of 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 the seal.

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

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

[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 sealing member 204 of the plug 202 is then inserted into the central receiving housing 74 of the connector 18. It seals each vent 84.

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

[0189] The internal 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 cap 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 internal volume 28.

[0191] The stopper 202 is then assembled onto the neck 26 of the bottle 16. In the example shown in the figures, the thread 210 of the outer 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 part 52. This generates, by a shape effect, an axial stress force of the collar 72 against the outer edge 42 of the neck 26, and advantageously a watertight contact between the bead 58 and the collar 62.

[0193] The 200 refill is then hermetically sealed, allowing the 200 refill to be stored, while preventing alteration of the fluid cosmetic product.

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

[0195] Initially, when the conditioning and dispensing device 12 presents a bottle 16 which needs to be replaced, for example because the internal volume 28 has a low level of liquid cosmetic product or the cosmetic product is expired, the user inserts a refill 200.

[0196] The user maneuvers the plug 202 to move it into its release position from 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, ensure that the collar 62 of the refill 200 always has an integral annular relief 64 after removal of the cap 202.

[0198] The user then grasps the conditioning and dispensing device 12, and 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 inner volume 28 of the refill 200 can now be distributed 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 conditioning and dispensing device 12 can then be recycled, while the dispensing mechanism 22 is reused.

[0203] Thanks to the invention just 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, reliably ensuring, with a reduced number of parts, a leak-proof 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 collar 26 and the connector 18 ensures a robust fixing of the connector 18 in the access passage 44 of the collar 26, including during erroneous handling by a user.

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

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

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

Claims

Demands

1. Cosmetic product packaging assembly (11) comprising: - a bottle (16) defining an internal volume (28) for receiving a fluid cosmetic product and a neck (26) having an internal surface (38) defining an access passage (44) to the internal volume (28) extending along an elevation axis (A-A') and opening onto an outer edge (42) of the neck (26), - a connector (18) comprising a barrel (60) for insertion into the access passage (44) of the neck (26), a collar (62) projecting from an outer end of the barrel (60) to fit onto 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 application against the concave region (48) of the internal surface (38) when the collar (62) is positioned to rest on the edge (42) of the neck (26),the concave region (48) cooperating with the radial projection(s) to generate an axial stress force from the collar (62) on the outer edge (42) towards the inner volume (28), and in that the contact between the collar (62) and the outer edge (42) of the neck (26) is watertight along the outer edge (42) when the concave region (48) cooperates with the radial projection(s).

2. Packaging assembly (11) according to claim 1, wherein the radial projection extending from the barrel (60) is an annular projection (76).

3. Packaging assembly (11) according to claim 2, wherein the annular projection (76) defines an axial notch (78), the contact between the annular projection (76) and the internal surface (38) being non-sealing with respect to the axial notch (78).

4. Packaging assembly (11) according to any one of the preceding claims, wherein the concave region (48) has at least one undercut portion (52) under which where each radial projection applies, the axial stress force resulting from the cooperation between the radial projection or projections and the undercut part (52).

5. Packaging assembly (11) according to any one of the preceding claims, 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.

6. Packaging assembly (11) according to any one of the preceding claims, wherein the drum (60) defines a central housing (74) delimited by an internal surface (72) of the drum (60), the or each radial projection projecting opposite the central housing (74) from an external surface (73) of the drum (60), the drum (60) defining a vent (84) opening into the central housing (74) and into the external surface (73) at an axial distance from the radial projection.

7. Packaging assembly (11) according to any one of the preceding claims, wherein the drum (60) has an outer region for achieving a seal (66) and an intermediate region for mechanical retention (68).

8. Packaging assembly (11) according to claim 7, wherein the or each radial projection is located in the sealing region (66), the collar (62) projecting radially from an outer edge of the sealing region (66).

9. Packaging assembly (11) according to any one of claims 7 or 8, wherein the drum (60) comprises a plurality of bracing fins (96, 98) projecting towards the inner surface (38) from the intermediate mechanical support region (68).

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

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

12. Cosmetic product refill (200) comprising: - a packaging assembly (11) according to any one of claims 1 to 10, - a sealing plug (202) for the access passage (44) removably mounted on the connector (18), in a tight seal against the collar (62).

13. A method for assembling a packaging unit (11) comprising the following steps: - providing a bottle (16) defining an internal volume (28) for receiving a liquid cosmetic product and a neck (26) having an internal surface (38) defining an access passage (44) to the internal volume (28) extending along an elevation axis (A-A') and opening onto an external 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) having a collar (62) projecting from an external end of the barrel (60) to bear against the external 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 applying the radial projection(s) against the concave region (48) to position the collar (62) bearing on the outer edge (42) and generating an axial stress force from the collar (62) on the outer edge (42) towards the inner volume (28) by cooperation between the radial projection(s) and the concave region (48).

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