EP4159083A1 - Shell of a rechargeable device for packaging a cosmetic product and associated packaging device - Google Patents

Shell of a rechargeable device for packaging a cosmetic product and associated packaging device Download PDF

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Publication number
EP4159083A1
EP4159083A1 EP22198907.2A EP22198907A EP4159083A1 EP 4159083 A1 EP4159083 A1 EP 4159083A1 EP 22198907 A EP22198907 A EP 22198907A EP 4159083 A1 EP4159083 A1 EP 4159083A1
Authority
EP
European Patent Office
Prior art keywords
shell
refill
elastomeric material
ring
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22198907.2A
Other languages
German (de)
French (fr)
Other versions
EP4159083B1 (en
Inventor
Christophe Coquard
Floriane PERONNE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chanel Parfums Beaute SAS
Original Assignee
Chanel Parfums Beaute SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chanel Parfums Beaute SAS filed Critical Chanel Parfums Beaute SAS
Publication of EP4159083A1 publication Critical patent/EP4159083A1/en
Application granted granted Critical
Publication of EP4159083B1 publication Critical patent/EP4159083B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0068—Jars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02—Internal fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/048—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical
    • B65D77/0486—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical the inner container being coaxially disposed within the outer container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/048—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical
    • B65D77/0486—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical the inner container being coaxially disposed within the outer container
    • B65D77/0493—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical the inner container being coaxially disposed within the outer container and retained at a distance of the inner side-wall of the outer container, e.g. within a bottle neck
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D2034/005—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes with a cartridge

Definitions

  • the present invention relates to the field of refillable packaging devices for cosmetic products.
  • cosmetic product is understood to mean in particular all products for making up the skin, including the lips, and all compositions intended for bodily application, including so-called care products such as moisturizing creams. It relates in particular to the field of refills for rechargeable devices for packaging cosmetic products.
  • a packaging device for a cosmetic product generally designates any container used to contain a cosmetic product with a view to its conservation, transport, marketing or use. Pots, bottles, cases, etc. are thus designated, for example. used to contain a cosmetic product.
  • refill is meant a removable element comprising a tank adapted to contain a cosmetic product, and which can be put in place and removed from a shell which forms the external surface of the refillable cosmetic product packaging device consisting of a shell and a recharge.
  • the refill Once in place in the hull, the refill must be correctly maintained in the hull. In particular, care should be taken to prevent the refill from escaping from the shell, during its transport or its use during which the pot can take any orientation, in particular a complete reversal of the packaging device, whether this results from a voluntary action or not. In addition, the refill must not move in the shell when using the conditioning device. The refill must remain fixed during the dispensing of the product, for example when the user takes product from the refill.
  • the refill must be able to be easily extracted from the shell, with a view to its replacement.
  • Known rechargeable packaging devices generally comprise systems for maintaining the refill in the shell which are visible and unsightly, and/or which require industrially complex or costly adaptations.
  • the document JP2013119399 thus discloses a pot of cosmetic product comprising a refill, the tank of which is of generally cylindrical shape of revolution and comprises reliefs which slide, by correspondence of shape, in vertical grooves provided in the shell of the pot to prevent the tank from rotating.
  • the document EP0661012 also discloses a refill pot device, comprising an inner tank or receptacle which engages by form correspondence in an outer receptacle forming a shell, the inner receptacle being able in particular to comprise a peripheral bead which cooperates with a groove formed inside from the neck of the outer container.
  • WO2019058087 also discloses a refill pot device of close configuration, comprising an inner tub or receptacle which form-fits into an outer receptacle forming a shell, the shell having a peripheral bead which cooperates with a groove formed on the outer surface of tank.
  • the upper part of the shell has a neck comprising slots into which radial beads of the tank are inserted to allow the latter to be held in rotation.
  • the refill packaging devices known in the state of the art are based on a correspondence of shape between the shell and the refill, which allows for example by clipping (that is to say snap-fastening or other relative mechanical engagement ) maintaining the refill in the hull.
  • This requires a particular conformation of the shell and of the refill, which prevents for example being able to use a shell of conventional shape, such as a standard glass container, to form a refillable packaging device, and, similarly, prevents use a refill in the form of a tank of conventional shape, for example a glass or stainless steel tank of conventional shape.
  • the invention aims to solve all or part of the aforementioned problems.
  • the invention relates to a shell for a refillable device for packaging a cosmetic product which is adapted to receive a refill adapted to contain the cosmetic product.
  • the shell has an opening forming a neck, this opening being adapted to receive the refill in order to place it in a receiving volume defined by an interior wall of the shell.
  • the shell further comprises a ring connected to the neck, said ring extending over at least a portion of the inner wall of the shell forming said neck.
  • the ring has an inner surface at which is linked an element of elastomeric material which is at least partly in relief vis-à-vis said inner surface of the ring.
  • the shell thus formed is capable of maintaining a refill of suitable shape, thanks to the element made of elastomeric material.
  • the support obtained, nevertheless allowing the extraction of the refill, uses the elastic properties and the coefficient of friction of the elastomeric material.
  • the implementation of the recharge is thus very simple.
  • the element made of elastomeric material being carried on an attached ring and connected to the shell, the invention can be implemented on shells of very varied constitutions and shapes.
  • the element made of elastomeric material can be molded onto the ring.
  • the ring can be formed from a plastic material.
  • the ring and the element of elastomeric material that it presents can be formed together by bi-material injection.
  • the ring can thus be produced by known and controlled industrial processes, which provide good cohesion between the ring and the element made of elastomeric material that it carries.
  • the elastomeric material used can be an elastomeric thermoplastic or an elastomeric silicone. It may have a hardness of between 20 degrees shore and 80 degrees shore, and preferably between 40 degrees shore and 60 degrees shore. The elastomeric material used and its hardness allow it to deform under reasonable effort, compatible with application at a cosmetic product refill.
  • the element made of elastomeric material can form discrete studs distributed over the surface of the inner wall of the shell.
  • the element made of elastomeric material can form at least two studs and preferably at least three studs distributed over a periphery of the surface of the inner surface of the ring in its part situated on the surface of the inner wall of the neck of the shell.
  • the element made of elastomeric material can extend along one or more strips parallel to the opening of the shell.
  • the reception volume can be of generally cylindrical shape of revolution, or frustoconical, or straight prismatic.
  • the shell may consist mainly of plastic material, glass, stainless steel, aluminum, or wood.
  • the shell can be formed from one of the aforementioned materials, with the exception of the ring and the element made of elastomeric material.
  • the shell has an aesthetic aspect which can be essential in the field of cosmetic products.
  • the ring can be linked to the neck of the shell by clipping and/or by gluing. Any other known rigid and reliable connection mode can be used.
  • this bonding be done between the ring and the external wall of the shell, and/or between the ring and the internal wall of the shell, and/or on the periphery of the neck of the hull.
  • the invention also relates to a packaging device for a cosmetic product comprising a shell as defined above, a refill in which the refill comprises a side wall having a clearance vis-à-vis the inner wall of the shell, except at the level of all or part of the element made of elastomeric material, so that support zones for the element made of elastomeric material are formed on said side wall of the refill.
  • the means allowing this maintenance can be invisible (if the shell is opaque) or at the very least very discreet, so that they do not harm the aesthetics of the pot that is made up.
  • the element made of elastomeric material can be deformed in said bearing zones by compression on the side wall of the refill, compared to a configuration that the element made of elastomeric material adopts in the absence of external stresses.
  • the deformation of the element made of elastomeric material on the support zones increases the force which it exerts on the inner surface of the shell, and thus increases the friction which opposes the extraction of the refill.
  • the side wall of the refill is devoid of asperities such as grooves, orifices, pins or snap rings, at least in a zone of interaction of said side wall with the element made of elastomeric material .
  • the side wall of the refill is devoid of roughness below an element of the tank intended to come into vertical support on the shell (edge, peripheral bead, etc.).
  • the maintenance of the refill does not does not require forming on it any particular shape intended to cooperate with means for holding the shell.
  • the refill tank of which is filled with a cosmetic product the shell and the refill can be configured so that a force necessary for extracting the refill is greater or equal to twice, and preferably greater than or equal to two and a half times the weight of the refill.
  • the shape, the dimensions and the constitution of the element made of elastomeric material are configured so as to obtain the force necessary for the extraction of the desired refill.
  • This holding force allows relatively easy removal of the refill for its replacement. It corresponds to a desirable specification for pots of conventional cosmetic products.
  • the tank may comprise a lid connected by snap-fastening or screwing to the rest of said tank. This allows nomadic use of the tank alone, without the shell, to transport the cosmetic product it contains.
  • the packaging device can in particular be a jar, for example a jar of cream.
  • FIG. 1 represents, in a three-dimensional view, a first example of a refill 1 adapted to be used in a refillable cosmetic product packaging device in accordance with one embodiment of the invention.
  • the refill 1 comprises a tank 2 which is hollow, that is to say the shape of which provides a volume suitable for receiving a cosmetic product.
  • the tank 2 has a generally cylindrical shape, which can be straight or slightly flared (truncated cone). Any hollow shape can nevertheless be envisaged to form the vessel, in particular any straight prismatic shape, in particular having a square, rectangular, pentagonal, hexagonal, octagonal, etc. base.
  • the tank 2 has in particular a side wall 3 and a bottom 4.
  • the tank comprises, in the example shown, an upper edge 5. Edge 5 is formed around an open face 6 of tank 2.
  • the edge 5 can be projecting, that is to say it forms a rim at the periphery of the open face 6.
  • a rim can allow the clipping of a stopper on the tank 2.
  • Such a rim can also form a support zone for the tank when it is inserted into a corresponding shell.
  • the tank 2 has a thread 15 allowing the adaptation of a screw cap on the tank. The tank 2 can thus be used on its own, independently of the shell described below in section figure 2 , in order to transport the cosmetic product it contains.
  • a cosmetic product for example a cream
  • the open face 6 of the tank can be covered with a removable cap, for example a product protection pad, bearing for example on the rim 5 and/or on a shoulder formed in the upper part of the tank.
  • the tank can also include a lid, for example heat-sealed, covering the open face 6 and having to be removed during the first use of the refill.
  • the open face can be free, directly exposing the product contained in tank 2 of the refill, or be provided with a regulating device such as a sieve, a net, or other device suitable for the product to be dispensed.
  • the refill thus has a simple form.
  • the refill and in particular its side wall 3 and more particularly the outer surface 7 of this side wall 3, is devoid of asperities or other latching means.
  • asperity we mean a volume, relief or hollow, formed on a surface and of dimensions much greater than any roughness linked to the material constituting the said surface.
  • the side wall surface 3 in particular has no groove, no orifice, no pin or no snap ring.
  • the side wall 3 nevertheless comprises a peripheral bead 16 providing a bearing surface.
  • the side wall 3 is thus devoid of any snap-fastening means vis-à-vis a shell adapted to receive the tank 2, as detailed below.
  • the refill can thus be easily produced, or can consist of a standard container, for example a plastic, glass, or stainless steel pot.
  • the manufacturing cost of the tank (and ultimately of the packaging device) can thus be reduced, compared to packaging devices in which the tank must include specific fixing elements in a shell.
  • FIG. 2 represents an example of a shell 8 that can be used to form a packaging device for a cosmetic product (in this case a jar) with a refill 1, for example the refill of the figure 1 .
  • the shell designates an element adapted to receive a refill and in which the refill will be maintained.
  • the hull of the figure 2 thus forms a receiving volume adapted to receive the refill 1 through an opening 9. More particularly, an inner wall 14 of the shell 2 defines the receiving volume of the tank 2 of the refill 1.
  • the shell 8 comprises a main body 10
  • the main body 10 is of substantially prismatic shape with a square base, the side faces of which have a slight convexity.
  • the shell 8 constituting a visible part of the pot once the latter is formed, it has an important aesthetic function.
  • the main body 10 of the shell 8 is surmounted by a neck 11 provided with a thread 12 allowing the installation of a screw cover (not shown in figure 2 ).
  • a shoulder 13 is formed close to the mouth of the neck 11.
  • the shoulder 13 is dimensioned so as to be able to receive in support an element of the tank 2 of the refill 1, namely the peripheral bead 16 in the example of embodiment shown.
  • the shoulder 13 is optional, the refill being able to bear vertically, in other embodiments, on other surfaces of the shell, for example an edge of the tank 2 of the refill 1 can bear directly on the neck 11, or for example, in the absence of a rim on the tank 2 of the refill, the bottom 4 of the tank can rest on a bottom of the shell, if the latter has a bottom.
  • a shell 8 without bottom can be advantageous to facilitate the extraction of the refill. More particularly, the shell 8 comprises according to the present invention a ring 17 which is connected to the neck 11. The ring 17 covers the neck 11 in the example shown, and is connected to it by clipping. Other binding modes, such as gluing, can be used as an alternative or in addition to clipping.
  • the ring 17 here comprises the shoulder 13 allowing the vertical support of the tank 2 of the refill 1.
  • the ring 17 comprises an inner surface 18 to which is bonded an element of elastomeric material 19.
  • the element made of elastomeric material 19 is intimately linked to the ring 17.
  • the element made of elastomeric material 19 can be molded over the ring 17.
  • An overmolding of the element 19 of elastomeric material on the ring 17 is possible in particular on a ring 17 made of plastic material, in particular of hard plastic material such as polypropylene.
  • ring 17 and elastomeric material element 19 can be formed by bi-material injection.
  • the elastomeric materials that can be used to form the element made of elastomeric material include all elastomeric thermoplastics (TPE) as well as elastomeric silicones.
  • TPE elastomeric thermoplastics
  • the materials that can be used advantageously have a shore hardness of between 19 degrees shore and 80 degrees shore (preferably between 40 and 60 degrees shore).
  • the hardness of the material used is an important optimization parameter, and is chosen in particular according to the dimensions of the refill tank and according to the material used to form the ring 17 and its configuration.
  • the elastomeric material element 19 is in relief vis-à-vis the inner surface 18 of the ring 17.
  • the element of elastomeric material 19 forms a peripheral band on the inner surface 18 of the ring.
  • This strip has three pads 20, distributed along the periphery of the inner surface 18 carrying said strip.
  • These studs 20 form the parts of the element made of elastomeric material 19 having a function of maintaining the refill 1 in the receiving volume, as detailed below.
  • the number, dimensions, shape, and orientation of the pads 20 may vary depending on the application considered. More generally, the configurations that can be envisaged for the element made of elastomeric material are numerous.
  • the studs 20 have a vertical arrangement, that is to say they form a relief having an elongated shape from the top (opening of the neck 11 of the shell 8) downwards. (bottom of the shell 8 if said shell has a bottom).
  • the studs 20 are oriented perpendicular to a plane materialized by the opening 9 of the shell provided for the introduction of the refill 1.
  • the studs 20 can thus be designated as gadroons, in this embodiment.
  • the number of studs formed by the element made of elastomeric material can be adapted easily, with few modifications in the production tools.
  • the rest of the element made of elastomeric material 19 can be in relief or flush with the inner surface 18 of ring 17.
  • the distribution of the three studs 20 is preferably regular, that is to say that the studs are equidistant along the strip formed by the element of elastomeric material 19. They are thus formed with an angle of 120° between them. , if the ring 17 is circular. More generally, when the ring 17 has a shape of revolution, this results in a regular angular distribution of the studs 20 in the ring.
  • the element of elastomeric material 19 extends continuously in the form of a strip, on a periphery of the inner surface 18 of the ring 17, according to another variant of this embodiment , the elastomeric material element 19 can be formed of several studs 20 without them being linked together by a strip of elastomeric material.
  • the hull of the figure 2 can be formed mainly (for example with the exception of the ring 17 and the element of elastomeric material 19) in various materials.
  • the shell can be formed from glass. Any shade of glass can be used, in particular transparent, translucent, opaque, colored or not.
  • the shell can be made of many other materials, depending on the desired look, volume, shape, desired closure method, etc.
  • the shell can be made of plastic material, wood, metal (such as stainless steel, tinplate, or aluminum).
  • FIG. 3 represents, according to a cross-sectional view, a packaging device, namely a pot, formed from the shell of the figure 2 and charging the figure 1 .
  • the conditioning device shown in figure 3 is further equipped with a cover 21 adapted to cooperate with the thread 12.
  • the cutting plane is a diametral plane of the hull 8, as represented on the figure 2 .
  • the pot shown in picture 3 thus comprises a shell 8, in the form of a thick-walled container, which forms a reception volume in which the refill 1 is received.
  • the shape of the interior volume of the shell 8 thus corresponds, within a clearance, to the exterior shape of the tank 2 (for example cylindrical or slightly frustoconical).
  • the depth of this volume is slightly greater than the overall height of the refill 1, so that the peripheral bead 16 of the refill rests on the shoulder 13 formed by the ring 17 at the mouth of the neck 11.
  • FIG 4 represents a detail view of the interaction between the shell 8 and the refill 1 in the pot of the picture 3 , according to the same cutting plane as that of the picture 3 .
  • FIG 4 reveals in particular the clipping of the ring 17 on the neck 11 of the tank 2.
  • the neck 11 can thus have a shape suitable for clipping, for example thanks to a groove 22 formed in the upper part of the neck 11.
  • the figure 4 also shows the support formed between the peripheral bead 16 and the shoulder 13 of the ring 17.
  • the ring 17 extends along the upper part of the inner wall 14 of the tank. When a refill 1 is in position in the shell 8, in the example shown, it only interacts with the shell with the ring 17.
  • a clearance J1 for example of the order of 1 to 3 mm for a jar of cosmetic cream of conventional volume, for example of the order of 60 mL, exists between the inner wall 14 of shell 8 and outer surface 7 of side wall 3 of tank 2.
  • each stud 20 forms a projection with a thickness greater than the clearance J, when the stud is not subjected to an external mechanical stress, in particular when the pad 20 is not deformed by compression.
  • the thickness of the pad can be of the order of 1 mm, for example of the order of 0.9 mm.
  • each stud 20 When the refill 1 is in the shell 8, each stud 20 is compressed and therefore has a thickness equal to the clearance J.
  • the stud 20 thus fills the clearance J and, due to its elasticity, exerts a bearing force on the side wall 3 of tank 2 of refill 1.
  • FIG. 5 An example of the distribution of the studs is visible at figure 5 .
  • figure 5 represents the ring 17 of the embodiment of the figures 2 to 4 , bottom view, that is to say with in the foreground the face of the joint facing the bottom of the hull when the ring 17 is connected to the hull.
  • the three studs 20 distributed regularly, at 120° angles between them, allow uniform support and perfect centering of the tank 2 when it is in place in the shell 8, in interaction with the ring 17.
  • Each support zone, formed at the level of each stud 20, forms a zone ensuring that the tank 2 (and therefore the refill 1) is held in the shell 8.
  • a force tending to extract the refill 1 from the shell 8 is exerted, a force opposing its extraction is created, by reaction, at the studs, due to the interaction between each stud 20 and the side wall 3 of the refill 1 on which the studs 20 are compressed. This force is generated by friction of stud 20 on the outer wall of tank 2.
  • the tank 2 As long as the tank 2 is stationary in the shell 8, it is a so-called dry friction force, the intensity of which is, for each stud 20, at most equal to the coefficient of friction static between the studs 20 multiplied by the force exerted between the inner wall 14 of the shell 8 and the stud 20 due to its compression.
  • the force tending to extract the tank from the shell 8 exceeds the sum of the maximum static friction forces exerted at the level of the studs 20, the refill 1 begins to move vis-à-vis the shell 8 for its extraction.
  • the material which constitutes it, the total bearing surface (sum of the bearing surfaces) between said element made of elastomeric material and the outer surface 7 of the side wall 3 of the tank, and the sum of the forces exerted due to the compression of said element made of elastomeric material are determining parameters when determining the configuration of the element made of elastomeric material.
  • the force required to extract the refill be at least twice greater than the weight of the full refill, for example of the order two and a half times the weight of the full refill.
  • the studs 20 have, in the example shown, a rounded shape in the so-called vertical direction which also corresponds to the direction of introduction (and extraction) of the refill, which allows a progressive compression of the pads during the insertion of the refill 1 in the shell 8.
  • the pads 20 could alternatively have a beveled or chamfered shape to obtain the same effect.
  • the present invention is obviously not limited to the embodiment detailed above.
  • the respective configuration of the element made of elastomeric material, of the refill and/or of the shell can be very different from the configurations described above.
  • the presence of studs on the element made of elastomeric material is optional, provided that at least part of said element made of elastomeric material is in relief relative to the inner surface of the ring.
  • Very varied shapes of elements made of elastomeric material can be envisaged.
  • the tank can have various shapes and constructions, depending on the application considered.
  • the shell can have various shapes and constitutions.
  • the tank may be cubic, cylindrical, cubic or parallelepiped, spherical, and may or may not have a bottom, or be provided with an orifice in its bottom to facilitate the extraction of a refill.
  • the invention thus developed allows the removable retention of a cosmetic product refill in a shell in order to form an aesthetic and refillable cosmetic product packaging device by exchanging the refill.
  • Holding is obtained by friction of the element made of elastomeric material on an external surface of a wall of the refill.
  • the holding means in particular the element made of elastomeric material, can be totally invisible once the pot is made, and can be barely visible in the shell.
  • the refill can have a shape that is simple to produce, because the outer surface of the tank of the refill which is intended to interact with the element of elastomeric material of the shell for holding the refill does not require the formation of no special mechanical clipping device.
  • a pre-existing vessel e.g. a conventional glassware vessel, a single tank made of plastic, metal, etc. can thus be used without adaptation as a tank for the refill of the cosmetic product packaging device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)

Abstract

L'invention porte sur une coque pour dispositif rechargeable de conditionnement de produit cosmétique. La coque (8) est adaptée à recevoir une recharge adaptée à contenir ledit produit cosmétique. La coque (8) comporte une ouverture (9) formant un col (11) de la coque et qui est adaptée à recevoir la recharge afin de la mettre en place dans un volume de réception défini par une paroi intérieure (14) de la coque. La coque comporte en outre une bague (17) liée au col (11), ladite bague (17) recouvrant au moins en partie une portion de la paroi intérieure de la coque formant ledit col (11). La bague comporte une surface intérieure (18) à laquelle est liée un élément en matériau élastomérique (19) qui est au moins pour partie en relief vis-à-vis de ladite surface intérieure de la bague.La coque (8) ainsi formée est apte à maintenir une recharge dans le volume de réception, grâce aux reliefs de matériau élastomérique formés sur la surface intérieure de la bague.L'invention porte également sur un dispositif de conditionnement pour produit cosmétique comportant une telle coque (8) et une recharge.The invention relates to a shell for a refillable cosmetic product packaging device. The shell (8) is adapted to receive a refill adapted to contain said cosmetic product. The shell (8) has an opening (9) forming a neck (11) of the shell and which is adapted to receive the refill in order to place it in a reception volume defined by an interior wall (14) of the shell . The shell further comprises a ring (17) connected to the neck (11), said ring (17) at least partially covering a portion of the inner wall of the shell forming said neck (11). The ring has an inner surface (18) to which is bonded an element of elastomeric material (19) which is at least partly in relief vis-à-vis said inner surface of the ring. The shell (8) thus formed is capable of maintaining a refill in the receiving volume, thanks to the reliefs of elastomeric material formed on the inner surface of the ring. The invention also relates to a packaging device for cosmetic product comprising such a shell (8) and a refill.

Description

La présente invention concerne le domaine des dispositifs rechargeables de conditionnement pour produit cosmétique. Par produit cosmétique, on entend notamment tous les produits pour le maquillage de la peau, y compris les lèvres, et toutes les compositions destinées à une application corporelle, y compris les produits dits de soin tels que les crèmes hydratantes. Elle porte en particulier sur le domaine des recharges pour dispositifs rechargeables de conditionnement de produit cosmétique.The present invention relates to the field of refillable packaging devices for cosmetic products. The term “cosmetic product” is understood to mean in particular all products for making up the skin, including the lips, and all compositions intended for bodily application, including so-called care products such as moisturizing creams. It relates in particular to the field of refills for rechargeable devices for packaging cosmetic products.

Un dispositif de conditionnement pour produit cosmétique désigne de manière générale tout contenant employé pour contenir un produit cosmétique en vue de sa conservation, son transport, sa commercialisation, ou son utilisation. Sont ainsi par exemple désignés les pots, flacons, étuis, etc. employés pour contenir un produit cosmétique.A packaging device for a cosmetic product generally designates any container used to contain a cosmetic product with a view to its conservation, transport, marketing or use. Pots, bottles, cases, etc. are thus designated, for example. used to contain a cosmetic product.

Par recharge, on entend un élément amovible comportant une cuve adaptée à contenir un produit cosmétique, et qui peut être mis en place et retiré d'une coque qui forme la surface externe du dispositif rechargeable de conditionnement de produit cosmétique constitué par une coque et une recharge.By refill, is meant a removable element comprising a tank adapted to contain a cosmetic product, and which can be put in place and removed from a shell which forms the external surface of the refillable cosmetic product packaging device consisting of a shell and a recharge.

Une fois en place dans la coque, la recharge doit être correctement maintenue dans la coque. En particulier, il convient d'éviter que la recharge ne puisse s'échapper de la coque, lors de son transport ou de son utilisation lors desquels le pot peut prendre toute orientation, notamment un renversement complet du dispositif de conditionnement, que cela résulte d'une action volontaire ou non. En outre, la recharge ne doit pas bouger dans la coque lors de l'utilisation du dispositif de conditionnement. La recharge doit rester fixe lors de la distribution du produit, par exemple lorsque l'utilisatrice prélève du produit dans la recharge.Once in place in the hull, the refill must be correctly maintained in the hull. In particular, care should be taken to prevent the refill from escaping from the shell, during its transport or its use during which the pot can take any orientation, in particular a complete reversal of the packaging device, whether this results from a voluntary action or not. In addition, the refill must not move in the shell when using the conditioning device. The refill must remain fixed during the dispensing of the product, for example when the user takes product from the refill.

Néanmoins, la recharge doit pouvoir être extraite facilement de la coque, en vue de son remplacement.Nevertheless, the refill must be able to be easily extracted from the shell, with a view to its replacement.

Les dispositifs de conditionnement rechargeables connus comportent généralement des systèmes de maintien de la recharge dans la coque qui sont visibles et peu esthétiques, et/ou qui nécessitent des adaptations industriellement complexes ou coûteuses.Known rechargeable packaging devices generally comprise systems for maintaining the refill in the shell which are visible and unsightly, and/or which require industrially complex or costly adaptations.

Le document JP2013119399 divulgue ainsi un pot de produit cosmétique comportant une recharge dont la cuve est de forme générale cylindrique de révolution et comporte des reliefs qui coulissent, par correspondance de forme, dans des rainures verticales ménagées dans la coque du pot pour empêcher la cuve de tourner.The document JP2013119399 thus discloses a pot of cosmetic product comprising a refill, the tank of which is of generally cylindrical shape of revolution and comprises reliefs which slide, by correspondence of shape, in vertical grooves provided in the shell of the pot to prevent the tank from rotating.

Le document EP0661012 divulgue également un dispositif de pot à recharge, comportant une cuve ou récipient intérieur qui s'engage par correspondance de forme dans un récipient extérieur formant coque, le récipient intérieur pouvant en particulier comporter un bourrelet périphérique qui coopère avec une rainure formée à l'intérieur du col du récipient extérieur.The document EP0661012 also discloses a refill pot device, comprising an inner tank or receptacle which engages by form correspondence in an outer receptacle forming a shell, the inner receptacle being able in particular to comprise a peripheral bead which cooperates with a groove formed inside from the neck of the outer container.

Le document WO2019058087 divulgue également un dispositif de pot à recharge de configuration proche, comportant une cuve ou récipient intérieur qui s'engage par correspondance de forme dans un récipient extérieur formant coque, la coque comportant un bourrelet périphérique qui coopère avec une rainure formée sur la surface extérieure de la cuve. La partie supérieure de la coque présente un col comportant des fentes dans lesquelles sont introduits des bourrelets radiaux de la cuve pour permettre un maintien en rotation de cette dernière.The document WO2019058087 also discloses a refill pot device of close configuration, comprising an inner tub or receptacle which form-fits into an outer receptacle forming a shell, the shell having a peripheral bead which cooperates with a groove formed on the outer surface of tank. The upper part of the shell has a neck comprising slots into which radial beads of the tank are inserted to allow the latter to be held in rotation.

Ainsi, les dispositifs de conditionnement à recharge connus dans l'état de la technique sont fondés sur une correspondance de forme entre la coque et la recharge, qui permet par exemple par clipsage (c'est-à-dire encliquetage ou autre engagement mécanique relatif) le maintien de la recharge dans la coque. Cela nécessite une conformation particulière de la coque et de la recharge, qui empêche par exemple de pouvoir utiliser une coque de forme classique, tel qu'un récipient en verre standard, pour former un dispositif de conditionnement rechargeable, et, similairement, empêche d'utiliser une recharge sous la forme d'une cuve de forme classique, par exemple une cuve en verre ou en acier inoxydable de forme classique.Thus, the refill packaging devices known in the state of the art are based on a correspondence of shape between the shell and the refill, which allows for example by clipping (that is to say snap-fastening or other relative mechanical engagement ) maintaining the refill in the hull. This requires a particular conformation of the shell and of the refill, which prevents for example being able to use a shell of conventional shape, such as a standard glass container, to form a refillable packaging device, and, similarly, prevents use a refill in the form of a tank of conventional shape, for example a glass or stainless steel tank of conventional shape.

L'invention vise à résoudre tout ou partie des problèmes précités.The invention aims to solve all or part of the aforementioned problems.

Ainsi, l'invention porte sur une coque pour dispositif rechargeable de conditionnement de produit cosmétique qui est adaptée à recevoir une recharge adaptée à contenir le produit cosmétique. La coque comporte une ouverture formant un col, cette ouverture étant adaptée à recevoir la recharge afin de la mettre en place dans un volume de réception défini par une paroi intérieure de la coque. La coque comporte en outre une bague liée au col, ladite bague s'étendant sur au moins une portion de la paroi intérieure de la coque formant ledit col. La bague comporte une surface intérieure à laquelle est liée un élément en matériau élastomérique qui est au moins pour partie en relief vis-à-vis de ladite surface intérieure de la bague.Thus, the invention relates to a shell for a refillable device for packaging a cosmetic product which is adapted to receive a refill adapted to contain the cosmetic product. The shell has an opening forming a neck, this opening being adapted to receive the refill in order to place it in a receiving volume defined by an interior wall of the shell. The shell further comprises a ring connected to the neck, said ring extending over at least a portion of the inner wall of the shell forming said neck. The ring has an inner surface at which is linked an element of elastomeric material which is at least partly in relief vis-à-vis said inner surface of the ring.

La coque ainsi formée est apte à maintenir une recharge de forme adaptée, grâce à l'élément en matériau élastomérique. Le maintien obtenu, permettant néanmoins l'extraction de la recharge, utilise les propriétés élastiques et le coefficient de frottement du matériau élastomérique. La mise en oeuvre de la recharge est ainsi très simple. L'élément en matériau élastomérique étant porté sur une bague rapportée et liée à la coque, l'invention peut être mise en oeuvre sur des coques de constitutions et de formes très variées.The shell thus formed is capable of maintaining a refill of suitable shape, thanks to the element made of elastomeric material. The support obtained, nevertheless allowing the extraction of the refill, uses the elastic properties and the coefficient of friction of the elastomeric material. The implementation of the recharge is thus very simple. The element made of elastomeric material being carried on an attached ring and connected to the shell, the invention can be implemented on shells of very varied constitutions and shapes.

L'élément en matériau élastomérique peut être surmoulé sur la bague.The element made of elastomeric material can be molded onto the ring.

La bague peut être formée d'un matériau plastique. La bague et l'élément en matériau élastomérique qu'elle présente peuvent être formés ensemble par injection bi-matière. La bague peut ainsi être produite par des procédés industriels connus et maîtrisés, qui offrent une bonne cohésion entre la bague et l'élément en matériau élastomérique qu'elle porte.The ring can be formed from a plastic material. The ring and the element of elastomeric material that it presents can be formed together by bi-material injection. The ring can thus be produced by known and controlled industrial processes, which provide good cohesion between the ring and the element made of elastomeric material that it carries.

Le matériau élastomérique employé peut être un thermoplastique élastomère ou un silicone élastomère. Il peut avoir une dureté comprise entre 20 degrés shore et 80 degrés shore, et de préférence comprise entre 40 degrés shore et 60 degrés shore Le matériau élastomérique employé et sa dureté en permettent la déformation sous un effort raisonnable, compatible de l'application à une recharge de produit cosmétique. L'élément en matériau élastomérique peut former des plots discrets répartis sur la surface de la paroi intérieure de la coque.The elastomeric material used can be an elastomeric thermoplastic or an elastomeric silicone. It may have a hardness of between 20 degrees shore and 80 degrees shore, and preferably between 40 degrees shore and 60 degrees shore. The elastomeric material used and its hardness allow it to deform under reasonable effort, compatible with application at a cosmetic product refill. The element made of elastomeric material can form discrete studs distributed over the surface of the inner wall of the shell.

L'élément en matériau élastomérique peut former au moins deux plots et de préférence au moins trois plots répartis sur une périphérie de la surface de la surface intérieure de la bague dans sa partie située sur la surface de la paroi intérieure du col de la coque. L'élément en matériau élastomérique peut s'étendre selon une ou plusieurs bandes parallèles à l'ouverture de la coque.The element made of elastomeric material can form at least two studs and preferably at least three studs distributed over a periphery of the surface of the inner surface of the ring in its part situated on the surface of the inner wall of the neck of the shell. The element made of elastomeric material can extend along one or more strips parallel to the opening of the shell.

Différentes configurations de l'élément en matériau élastomérique permettent d'adapter les zones d'appui à l'application, le maintien de la recharge, la force de maintien, l'esthétique, la complexité de mise en œuvre, etc.Different configurations of the elastomeric material element make it possible to adapt the support zones to the application, the holding of the refill, the holding force, the aesthetics, the complexity of implementation, etc.

Dans une telle coque, le volume de réception peut être de forme générale cylindrique de révolution, ou tronconique, ou prismatique droite.In such a shell, the reception volume can be of generally cylindrical shape of revolution, or frustoconical, or straight prismatic.

Il s'agit de configurations particulièrement adaptées à la mise en œuvre de l'invention. La coque peut être constituée majoritairement en matériau plastique, en verre, en acier inoxydable, en aluminium, ou en bois.These are configurations particularly suited to the implementation of the invention. The shell may consist mainly of plastic material, glass, stainless steel, aluminum, or wood.

Par majoritairement, il est entendu à plus de 50% en volume. En particulier, la coque peut être formée de l'un des matériaux précités, à l'exception de la bague et de l'élément en matériau élastomérique. La coque revêt en effet un aspect esthétique qui peut être primordial dans le domaine des produits cosmétiques.By predominantly, it is understood to be more than 50% by volume. In particular, the shell can be formed from one of the aforementioned materials, with the exception of the ring and the element made of elastomeric material. The shell has an aesthetic aspect which can be essential in the field of cosmetic products.

La bague peut être liée au col de la coque par clipsage et/ou par collage. Tout autre mode de liaison rigide et fiable connu peut être employé.The ring can be linked to the neck of the shell by clipping and/or by gluing. Any other known rigid and reliable connection mode can be used.

Lorsqu'un collage est réalisé entre la bague et le col, ce collage être fait entre la bague et la paroi externe de la coque, et/ou entre la bague et la paroi interne de la coque, et/ou sur la périphérie du col de la coque.When a bonding is carried out between the ring and the neck, this bonding be done between the ring and the external wall of the shell, and/or between the ring and the internal wall of the shell, and/or on the periphery of the neck of the hull.

L'invention porte également sur un dispositif de conditionnement pour produit cosmétique comportant une coque telle que précédemment définie, une recharge dans lequel la recharge comporte une paroi latérale présentant un jeu vis-à-vis de la paroi intérieure de la coque, sauf au niveau de tout ou partie de l'élément en matériau élastomérique, de sorte que des zones d'appui de l'élément en matériau élastomérique sur ladite paroi latérale de la recharge sont formées.The invention also relates to a packaging device for a cosmetic product comprising a shell as defined above, a refill in which the refill comprises a side wall having a clearance vis-à-vis the inner wall of the shell, except at the level of all or part of the element made of elastomeric material, so that support zones for the element made of elastomeric material are formed on said side wall of the refill.

Le maintien de la recharge dans la coque étant assuré dans des zones d'appui, les moyens permettant ce maintien peuvent être invisibles (si la coque est opaque) ou à tout le moins très discrets, de sorte qu'ils ne nuisent pas à l'esthétique du pot qui est constitué.The maintenance of the refill in the shell being ensured in the support zones, the means allowing this maintenance can be invisible (if the shell is opaque) or at the very least very discreet, so that they do not harm the aesthetics of the pot that is made up.

L'élément en matériau élastomérique peut être déformé dans lesdites zones d'appui par compression sur la paroi latérale de la recharge, comparativement à une configuration que l'élément en matériau élastomérique adopte en l'absence de sollicitations extérieures.The element made of elastomeric material can be deformed in said bearing zones by compression on the side wall of the refill, compared to a configuration that the element made of elastomeric material adopts in the absence of external stresses.

La déformation de l'élément en matériau élastomérique sur les zones d'appui augmente la force qu'il exerce sur la surface intérieure de la coque, et augmente ainsi les frottements qui s'opposent à l'extraction de la recharge.The deformation of the element made of elastomeric material on the support zones increases the force which it exerts on the inner surface of the shell, and thus increases the friction which opposes the extraction of the refill.

Dans un mode de réalisation, la paroi latérale de la recharge est dénuée d'aspérités telles que des rainures, orifices, pions ou anneaux d'encliquetage, au moins dans une zone d'interaction de ladite paroi latérale avec l'élément en matériau élastomérique. En particulier, la paroi latérale de la recharge est dénuée d'aspérité en dessous d'un élément de la cuve destiné à venir en appui vertical sur la coque (rebord, bourrelet périphérique, etc).In one embodiment, the side wall of the refill is devoid of asperities such as grooves, orifices, pins or snap rings, at least in a zone of interaction of said side wall with the element made of elastomeric material . In particular, the side wall of the refill is devoid of roughness below an element of the tank intended to come into vertical support on the shell (edge, peripheral bead, etc.).

N'étant pas fondée sur un principe d'encliquetage ou de vissage, ou autre engagement d'un élément dans un élément de forme correspondante, le maintien de la recharge ne nécessite pas de former sur celle-ci une quelconque forme particulière destinée à coopérer avec des moyens de maintien de la coque.Not being based on a principle of snapping or screwing, or other engagement of an element in an element of corresponding shape, the maintenance of the refill does not does not require forming on it any particular shape intended to cooperate with means for holding the shell.

Dans un dispositif de conditionnement tel que défini ci-dessus, dont la cuve de la recharge est remplie d'un produit cosmétique, la coque et la recharge peuvent être configurées de sorte qu'une force nécessaire à l'extraction de la recharge est supérieure ou égale à deux fois, et préférentiellement supérieure ou égale à deux fois et demi le poids de la recharge. En particulier, la forme, les dimensions et la constitution de l'élément en matériau élastomérique sont configurées de sorte à obtenir la force nécessaire à l'extraction de la recharge souhaitée.In a packaging device as defined above, the refill tank of which is filled with a cosmetic product, the shell and the refill can be configured so that a force necessary for extracting the refill is greater or equal to twice, and preferably greater than or equal to two and a half times the weight of the refill. In particular, the shape, the dimensions and the constitution of the element made of elastomeric material are configured so as to obtain the force necessary for the extraction of the desired refill.

Cette force de maintien permet un retrait relativement aisé de la recharge en vue de son remplacement. Elle correspond à une spécification souhaitable pour les pots de produits cosmétiques classiques.This holding force allows relatively easy removal of the refill for its replacement. It corresponds to a desirable specification for pots of conventional cosmetic products.

Enfin, dans le dispositif de conditionnement tel que décrit précédemment, la cuve peut comporter un couvercle lié par encliquetage ou vissage au reste de ladite cuve. Cela permet un usage nomade de la cuve seule, sans la coque, pour transporter le produit cosmétique qu'elle contient.Finally, in the packaging device as described above, the tank may comprise a lid connected by snap-fastening or screwing to the rest of said tank. This allows nomadic use of the tank alone, without the shell, to transport the cosmetic product it contains.

Le dispositif de conditionnement peut notamment être un pot, par exemple un pot de crème.The packaging device can in particular be a jar, for example a jar of cream.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-après.Other features and advantages of the invention will appear further in the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs :

  • la figure 1 représente, selon une vue tridimensionnelle, un premier exemple d'une recharge pouvant être mise en œuvre dans un dispositif de conditionnement d'un produit cosmétique conforme à un mode de réalisation de l'invention ;
  • la figure 2 représente, selon une vue tridimensionnelle, un premier exemple d'une coque pour dispositif rechargeable de conditionnement de produit cosmétique selon un premier exemple de mode de réalisation de l'invention ;
  • la figure 3 représente, selon une vue en coupe, un dispositif de conditionnement pour produit cosmétique, à savoir un pot, comportant la coque de la figure 2 et la recharge de la figure 1 ;
  • la figure 4 représente, selon une vue partielle en coupe, l'interaction entre la coque et la recharge dans le dispositif de conditionnement de la figure 3 ;
  • la figure 5 représente, selon une vue schématique, une bague mise en œuvre dans le mode de réalisation de l'invention des figures 2 à 4.
In the accompanying drawings, given by way of non-limiting examples:
  • there figure 1 represents, according to a three-dimensional view, a first example of a refill that can be implemented in a device for packaging a cosmetic product in accordance with one embodiment of the invention;
  • there figure 2 shows, in a three-dimensional view, a first example of a shell for a rechargeable device for packaging cosmetic products according to a first example embodiment of the invention;
  • there picture 3 shows, in a cross-sectional view, a packaging device for a cosmetic product, namely a jar, comprising the shell of the figure 2 and charging the figure 1 ;
  • there figure 4 represents, according to a partial sectional view, the interaction between the shell and the refill in the packaging device of the picture 3 ;
  • there figure 5 represents, according to a schematic view, a ring implemented in the embodiment of the invention of the figures 2 to 4 .

La figure 1 représente, selon une vue tridimensionnelle, un premier exemple d'une recharge 1 adaptée à être utilisée dans un dispositif rechargeable de conditionnement de produit cosmétique conforme à un mode de réalisation de l'invention.There figure 1 represents, in a three-dimensional view, a first example of a refill 1 adapted to be used in a refillable cosmetic product packaging device in accordance with one embodiment of the invention.

La recharge 1 comporte une cuve 2 qui est creuse, c'est-à-dire dont la forme ménage un volume adapté à recevoir un produit cosmétique. Dans l'exemple ici représenté, la cuve 2 présente une forme générale cylindrique, pouvant être droite ou légèrement évasée (en tronc de cône). Toute forme creuse peut néanmoins être envisagée pour former la cuve, notamment toute forme prismatique droite, notamment ayant une base carrée, rectangulaire, en pentagone, hexagonale, octogonale, etc.The refill 1 comprises a tank 2 which is hollow, that is to say the shape of which provides a volume suitable for receiving a cosmetic product. In the example shown here, the tank 2 has a generally cylindrical shape, which can be straight or slightly flared (truncated cone). Any hollow shape can nevertheless be envisaged to form the vessel, in particular any straight prismatic shape, in particular having a square, rectangular, pentagonal, hexagonal, octagonal, etc. base.

La cuve 2 présente en particulier une paroi latérale 3 et un fond 4.The tank 2 has in particular a side wall 3 and a bottom 4.

La cuve comporte, dans l'exemple représenté, un bord 5 supérieur. Le bord 5 est formé autour d'une face ouverte 6 de la cuve 2.The tank comprises, in the example shown, an upper edge 5. Edge 5 is formed around an open face 6 of tank 2.

Selon un mode de réalisation non représenté, le bord 5 peut être débordant, c'est-à-dire qu'il forme un rebord à la périphérie de la face ouverte 6. Un tel rebord peut permettre le clipsage d'un bouchon sur la cuve 2. Un tel rebord peut également former une zone d'appui pour la cuve lorsqu'elle est insérée dans une coque correspondante. Dans l'exemple de mode de réalisation ici représenté, la cuve 2 présente un filetage 15 permettant l'adaptation d'un bouchon vissé sur la cuve. La cuve 2 est ainsi utilisable à elle seule, indépendamment de la coque décrite ci-après à la figure 2, afin de transporter le produit cosmétique qu'elle contient.According to an embodiment not shown, the edge 5 can be projecting, that is to say it forms a rim at the periphery of the open face 6. Such a rim can allow the clipping of a stopper on the tank 2. Such a rim can also form a support zone for the tank when it is inserted into a corresponding shell. In the exemplary embodiment shown here, the tank 2 has a thread 15 allowing the adaptation of a screw cap on the tank. The tank 2 can thus be used on its own, independently of the shell described below in section figure 2 , in order to transport the cosmetic product it contains.

Un produit cosmétique, par exemple une crème, peut être ainsi être contenu dans le volume ménagé à l'intérieur de la cuve. La face ouverte 6 de la cuve peut être recouverte d'un capuchon amovible, par exemple une pastille de protection du produit, prenant par exemple appui sur le rebord 5 et/ou sur un épaulement formé en partie haute de la cuve. La cuve peut également comporter un opercule, par exemple thermoscellé, recouvrant la face ouverte 6 et devant être ôté lors de la première utilisation de la recharge. La face ouverte peut être libre, exposant directement le produit contenu dans la cuve 2 de la recharge, ou être muni d'un dispositif de régulation tel qu'un tamis, un filet, ou autre dispositif adapté au produit à distribuer. La recharge a ainsi une forme simple.A cosmetic product, for example a cream, can thus be contained in the volume provided inside the tank. The open face 6 of the tank can be covered with a removable cap, for example a product protection pad, bearing for example on the rim 5 and/or on a shoulder formed in the upper part of the tank. The tank can also include a lid, for example heat-sealed, covering the open face 6 and having to be removed during the first use of the refill. The open face can be free, directly exposing the product contained in tank 2 of the refill, or be provided with a regulating device such as a sieve, a net, or other device suitable for the product to be dispensed. The refill thus has a simple form.

En l'occurrence la recharge, et en particulier sa paroi latérale 3 et plus particulièrement la surface externe 7 de cette paroi latérale 3, est dénuée d'aspérités ou autre moyen d'encliquetage.In this case the refill, and in particular its side wall 3 and more particularly the outer surface 7 of this side wall 3, is devoid of asperities or other latching means.

Par aspérité, on entend un volume, relief ou creux, formé sur une surface et de dimensions bien supérieures aux éventuelles rugosités liées au matériau constitutif de ladite surface. La surface paroi latérale 3 ne comporte en particulier aucune rainure, aucun orifice, aucun pion ou aucun anneau d'encliquetage.By asperity, we mean a volume, relief or hollow, formed on a surface and of dimensions much greater than any roughness linked to the material constituting the said surface. The side wall surface 3 in particular has no groove, no orifice, no pin or no snap ring.

Dans l'exemple de mode de réalisation ici représenté, la paroi latérale 3 comporte néanmoins un bourrelet périphérique 16 offrant une surface d'appui. La paroi latérale 3 est ainsi dénuée de tout moyen d'encliquetage vis-à-vis d'une coque adaptée à recevoir la cuve 2, comme détaillé ci-après.In the exemplary embodiment shown here, the side wall 3 nevertheless comprises a peripheral bead 16 providing a bearing surface. The side wall 3 is thus devoid of any snap-fastening means vis-à-vis a shell adapted to receive the tank 2, as detailed below.

La recharge peut ainsi être facilement produite, ou peut consister en un contenant standard, par exemple un pot en plastique, en verre, ou en acier inoxydable.The refill can thus be easily produced, or can consist of a standard container, for example a plastic, glass, or stainless steel pot.

Il est possible d'employer en tant que recharge un récipient préexistant, par exemple un récipient de verrerie classique, sans adaptation, en tant que recharge d'un dispositif de conditionnement de produit cosmétique.It is possible to use as a refill a pre-existing container, for example a conventional glassware container, without adaptation, as a refill for a cosmetic product packaging device.

Le coût de fabrication de la cuve (et au final du dispositif de conditionnement) peut ainsi être réduit, comparativement à des dispositifs de conditionnement dont la cuve doit comporter des éléments spécifiques de fixation dans une coque.The manufacturing cost of the tank (and ultimately of the packaging device) can thus be reduced, compared to packaging devices in which the tank must include specific fixing elements in a shell.

La figure 2 représente un exemple de coque 8 pouvant être employée pour former un dispositif de conditionnement pour produit cosmétique (en l'occurrence un pot) avec une recharge 1, par exemple la recharge de la figure 1.There picture 2 represents an example of a shell 8 that can be used to form a packaging device for a cosmetic product (in this case a jar) with a refill 1, for example the refill of the figure 1 .

La coque désigne un élément adapté à recevoir une recharge et dans lequel la recharge sera maintenue. La coque de la figure 2 forme ainsi un volume de réception adapté à recevoir la recharge 1 par une ouverture 9. Plus particulièrement, une paroi intérieure 14 de la coque 2 définit le volume de réception de la cuve 2 de la recharge 1. La coque 8 comporte un corps principal 10. Dans l'exemple représenté, le corps principal 10 est de forme sensiblement prismatique à base carrée, dont les faces latérales présentent une légère convexité. La coque 8 constituant une partie visible du pot une fois ce dernier constitué, elle a une fonction esthétique importante. Le corps principal 10 de la coque 8 est surmonté d'un col 11 doté d'un pas de vis 12 permettant la mise en place d'un couvercle à vis (non représenté à la figure 2).The shell designates an element adapted to receive a refill and in which the refill will be maintained. The hull of the figure 2 thus forms a receiving volume adapted to receive the refill 1 through an opening 9. More particularly, an inner wall 14 of the shell 2 defines the receiving volume of the tank 2 of the refill 1. The shell 8 comprises a main body 10 In the example shown, the main body 10 is of substantially prismatic shape with a square base, the side faces of which have a slight convexity. The shell 8 constituting a visible part of the pot once the latter is formed, it has an important aesthetic function. The main body 10 of the shell 8 is surmounted by a neck 11 provided with a thread 12 allowing the installation of a screw cover (not shown in figure 2 ).

Un épaulement 13 est formé à proximité de l'embouchure du col 11. L'épaulement 13 est dimensionné de sorte à pouvoir recevoir en appui un élément de la cuve 2 de la recharge 1, à savoir le bourrelet périphérique 16 dans l'exemple de mode de réalisation représenté.A shoulder 13 is formed close to the mouth of the neck 11. The shoulder 13 is dimensioned so as to be able to receive in support an element of the tank 2 of the refill 1, namely the peripheral bead 16 in the example of embodiment shown.

L'épaulement 13 est optionnel, la recharge pouvant prendre appui vertical, dans d'autres modes de réalisation, sur d'autres surfaces de la coque, par exemple un rebord de la cuve 2 de la recharge 1 peut prendre appui directement sur le col 11, ou par exemple en l'absence de rebord sur la cuve 2 de la recharge, le fond 4 de la cuve peut prendre appui sur un fond de la coque, si cette dernière comporte un fond. Une coque 8 sans fond peut être avantageuse pour faciliter l'extraction de la recharge. Plus particulièrement, la coque 8 comporte selon la présente invention une bague 17 qui est liée au col 11. La bague 17 recouvre le col 11 dans l'exemple représenté, et lui est lié par clipsage. D'autre modes de liaison, tels que le collage, peuvent être utilisés en alternative ou en complément au clipsage.The shoulder 13 is optional, the refill being able to bear vertically, in other embodiments, on other surfaces of the shell, for example an edge of the tank 2 of the refill 1 can bear directly on the neck 11, or for example, in the absence of a rim on the tank 2 of the refill, the bottom 4 of the tank can rest on a bottom of the shell, if the latter has a bottom. A shell 8 without bottom can be advantageous to facilitate the extraction of the refill. More particularly, the shell 8 comprises according to the present invention a ring 17 which is connected to the neck 11. The ring 17 covers the neck 11 in the example shown, and is connected to it by clipping. Other binding modes, such as gluing, can be used as an alternative or in addition to clipping.

La bague 17 comporte ici l'épaulement 13 permettant l'appui vertical de la cuve 2 de la recharge 1.The ring 17 here comprises the shoulder 13 allowing the vertical support of the tank 2 of the refill 1.

Selon l'invention, la bague 17 comporte une surface intérieure 18 à laquelle est liée un élément en matériau élastomérique 19.According to the invention, the ring 17 comprises an inner surface 18 to which is bonded an element of elastomeric material 19.

L'élément en matériau élastomérique 19 est intimement lié à la bague 17. Typiquement, l'élément en matériau élastomérique 19 peut être surmoulé sur la bague 17.The element made of elastomeric material 19 is intimately linked to the ring 17. Typically, the element made of elastomeric material 19 can be molded over the ring 17.

Un surmoulage de l'élément en matériau élastomérique 19 sur la bague 17 est possible notamment sur une bague 17 réalisée en matériau plastique, en particulier en matériau plastique dur tel que le polypropylène.An overmolding of the element 19 of elastomeric material on the ring 17 is possible in particular on a ring 17 made of plastic material, in particular of hard plastic material such as polypropylene.

Alternativement, la bague 17 et l'élément en matériau élastomérique 19 peuvent être formés par injection bi-matière.Alternatively, ring 17 and elastomeric material element 19 can be formed by bi-material injection.

Les matériaux élastomériques utilisables pour former l'élément en matériau élastomérique comprennent tous les thermoplastiques élastomères (TPE) ainsi que les silicones élastomères. Les matériaux utilisables ont avantageusement une dureté shore comprise entre 19 degrés shore et 80 degrés shore (de préférence entre 40 et 60 degrés shore).The elastomeric materials that can be used to form the element made of elastomeric material include all elastomeric thermoplastics (TPE) as well as elastomeric silicones. The materials that can be used advantageously have a shore hardness of between 19 degrees shore and 80 degrees shore (preferably between 40 and 60 degrees shore).

La dureté du matériau employé est un paramètre important d'optimisation, et est choisi notamment selon les dimensions de la cuve de la recharge et selon le matériau utilisé pour former la bague 17 et sa configuration.The hardness of the material used is an important optimization parameter, and is chosen in particular according to the dimensions of the refill tank and according to the material used to form the ring 17 and its configuration.

L'élément en matériau élastomérique 19 est en relief vis-à-vis de la surface intérieure 18 de la bague 17.The elastomeric material element 19 is in relief vis-à-vis the inner surface 18 of the ring 17.

En d'autres termes, sur au moins une partie de l'élément en matériau élastomérique 19, ce dernier est en saillie par rapport à la surface intérieure 18.In other words, over at least part of the element made of elastomeric material 19, the latter projects with respect to the inner surface 18.

Dans l'exemple de mode de réalisation représenté, l'élément en matériau élastomérique 19 forme une bande périphérique sur la surface intérieure 18 de la bague. Cette bande comporte trois plots 20, répartis le long de la périphérie de la surface intérieure 18 portant ladite bande.In the exemplary embodiment shown, the element of elastomeric material 19 forms a peripheral band on the inner surface 18 of the ring. This strip has three pads 20, distributed along the periphery of the inner surface 18 carrying said strip.

Ces plots 20 forment les parties de l'élément en matériau élastomérique 19 ayant une fonction de maintien de la recharge 1 dans le volume de réception, comme détaillé ci-après.These studs 20 form the parts of the element made of elastomeric material 19 having a function of maintaining the refill 1 in the receiving volume, as detailed below.

Le nombre, les dimensions, la forme, et l'orientation des plots 20 peuvent varier selon l'application considérée. Plus généralement, les configurations envisageables pour l'élément en matériau élastomérique sont nombreuses.The number, dimensions, shape, and orientation of the pads 20 may vary depending on the application considered. More generally, the configurations that can be envisaged for the element made of elastomeric material are numerous.

Dans l'exemple de mode de réalisation représenté, les plots 20 ont une disposition verticale, c'est-à-dire qu'ils forment un relief ayant une forme allongée du haut (ouverture du col 11 de la coque 8) vers le bas (fond de la coque 8 si ladite coque a un fond).In the exemplary embodiment shown, the studs 20 have a vertical arrangement, that is to say they form a relief having an elongated shape from the top (opening of the neck 11 of the shell 8) downwards. (bottom of the shell 8 if said shell has a bottom).

De manière plus générale, les plots 20 sont orientés perpendiculairement à un plan matérialisé par l'ouverture 9 de la coque prévue pour l'introduction de la recharge 1. Les plots 20 peuvent ainsi être désignés comme des godrons, dans ce mode de réalisation.More generally, the studs 20 are oriented perpendicular to a plane materialized by the opening 9 of the shell provided for the introduction of the refill 1. The studs 20 can thus be designated as gadroons, in this embodiment.

Dans ce mode de réalisation, le nombre de plots formés par l'élément en matériau élastomérique peut être adapté facilement, avec peu de modifications dans les outils de production.In this embodiment, the number of studs formed by the element made of elastomeric material can be adapted easily, with few modifications in the production tools.

A l'exception des plots 20 qui sont nécessairement en relief vis-à-vis de la surface intérieure 18 de la bague 17, le reste de l'élément en matériau élastomérique 19 peut être en relief ou à fleur de la surface intérieure 18 de la bague 17.With the exception of the studs 20 which are necessarily in relief vis-à-vis the inner surface 18 of the ring 17, the rest of the element made of elastomeric material 19 can be in relief or flush with the inner surface 18 of ring 17.

La répartition des trois plots 20 est de préférence régulière, c'est-à-dire que les plots sont équidistants le long de la bande formée par l'élément en matériau élastomérique 19. Ils sont ainsi formés avec 120° d'angle entre eux, si la bague 17 est circulaire. Plus généralement, lorsque la bague 17 a une forme de révolution, cela se traduit par une répartition angulaire régulière des plots 20 dans la bague.The distribution of the three studs 20 is preferably regular, that is to say that the studs are equidistant along the strip formed by the element of elastomeric material 19. They are thus formed with an angle of 120° between them. , if the ring 17 is circular. More generally, when the ring 17 has a shape of revolution, this results in a regular angular distribution of the studs 20 in the ring.

Tandis que dans le mode de réalisation représenté, l'élément en matériau élastomérique 19 s'étend continument sous la forme d'une bande, sur une périphérie de la surface intérieure 18 de la bague 17, selon une autre variante de ce mode de réalisation, l'élément en matériau élastomérique 19 peut être formé de plusieurs plots 20 sans qu'ils soient liés entre eux par une bande de matériau élastomérique.While in the embodiment shown, the element of elastomeric material 19 extends continuously in the form of a strip, on a periphery of the inner surface 18 of the ring 17, according to another variant of this embodiment , the elastomeric material element 19 can be formed of several studs 20 without them being linked together by a strip of elastomeric material.

De nombreuses autres configurations de l'élément en matériau élastomérique 19 sont envisageables, par exemple une bande unique en relief vis à vis de la surface intérieure 18 de la bague, une bande en zig-zag, ou ondulante, une combinaison d'une ou plusieurs bandes et de plots 20, etc.Numerous other configurations of the element made of elastomeric material 19 are possible, for example a single band in relief with respect to the inner surface 18 of the ring, a zig-zag or undulating band, a combination of one or several strips and pads 20, etc.

La coque de la figure 2 peut être formée majoritairement (par exemple à l'exception de la bague 17 et de l'élément en matériau élastomérique 19) en divers matériaux. Par exemple, la coque peut être formée en verre. Toute nuance de verre peut être employée, notamment transparent, translucide, opaque, coloré ou non.The hull of the figure 2 can be formed mainly (for example with the exception of the ring 17 and the element of elastomeric material 19) in various materials. For example, the shell can be formed from glass. Any shade of glass can be used, in particular transparent, translucent, opaque, colored or not.

La coque peut être réalisée en de nombreux autres matériaux, selon l'aspect recherché, le volume, la forme, le mode de fermeture souhaité, etc. Notamment, la coque peut être en matériau plastique, en bois, en métal (tel que l'acier inoxydable, le fer blanc, ou l'aluminium).The shell can be made of many other materials, depending on the desired look, volume, shape, desired closure method, etc. In particular, the shell can be made of plastic material, wood, metal (such as stainless steel, tinplate, or aluminum).

La figure 3 représente, selon une vue en coupe, un dispositif de conditionnement, à savoir un pot, formé de la coque de la figure 2 et de la recharge de la figure 1.There picture 3 represents, according to a cross-sectional view, a packaging device, namely a pot, formed from the shell of the figure 2 and charging the figure 1 .

Le dispositif de conditionnement représenté à la figure 3 est en outre équipé d'un couvercle 21 adapté à coopérer avec le pas de vis 12.The conditioning device shown in figure 3 is further equipped with a cover 21 adapted to cooperate with the thread 12.

Le plan de coupe est un plan diamétral de la coque 8, tel que représenté sur la figure 2.The cutting plane is a diametral plane of the hull 8, as represented on the figure 2 .

Le pot représenté à la figure 3 comporte ainsi une coque 8, sous la forme d'un récipient à paroi épaisse, qui forme un volume de réception dans lequel est reçu la recharge 1.The pot shown in picture 3 thus comprises a shell 8, in the form of a thick-walled container, which forms a reception volume in which the refill 1 is received.

Dans l'exemple représenté la forme du volume intérieur de la coque 8 correspond ainsi à un jeu près, à la forme extérieure de la cuve 2 (par exemple cylindrique ou légèrement tronconique). La profondeur de ce volume est légèrement supérieure à la hauteur hors tout de la recharge 1, de sorte que le bourrelet périphérique 16 de la recharge prend appui sur l'épaulement 13 formé par la bague 17 à l'embouchure du col 11.In the example shown, the shape of the interior volume of the shell 8 thus corresponds, within a clearance, to the exterior shape of the tank 2 (for example cylindrical or slightly frustoconical). The depth of this volume is slightly greater than the overall height of the refill 1, so that the peripheral bead 16 of the refill rests on the shoulder 13 formed by the ring 17 at the mouth of the neck 11.

La figure 4 représente une vue de détail de l'interaction entre la coque 8 et la recharge 1 dans le pot de la figure 3, selon le même plan de coupe que celui de la figure 3. La figure 4 révèle notamment le clipsage de la bague 17 sur le col 11 de la cuve 2. A cette fin, le col 11 peut ainsi présenter une forme adaptée au clipsage, par exemple grâce à une gorge 22 formée en partie supérieure du col 11. La figure 4 montre également l'appui formé entre le bourrelet périphérique 16 et l'épaulement 13 de la bague 17.There figure 4 represents a detail view of the interaction between the shell 8 and the refill 1 in the pot of the picture 3 , according to the same cutting plane as that of the picture 3 . There figure 4 reveals in particular the clipping of the ring 17 on the neck 11 of the tank 2. To this end, the neck 11 can thus have a shape suitable for clipping, for example thanks to a groove 22 formed in the upper part of the neck 11. The figure 4 also shows the support formed between the peripheral bead 16 and the shoulder 13 of the ring 17.

La bague 17 s'étend le long de la partie supérieure de la paroi intérieure 14 de la cuve. Lorsqu'une recharge 1 est en position dans la coque 8, dans l'exemple représenté, elle n'est en interaction vis-à-vis de la coque qu'avec la bague 17.The ring 17 extends along the upper part of the inner wall 14 of the tank. When a refill 1 is in position in the shell 8, in the example shown, it only interacts with the shell with the ring 17.

En effet, un jeu J1, par exemple de l'ordre de 1 à 3 mm pour un pot de crème cosmétique de volume classique, par exemple de l'ordre de 60 mL, existe entre la paroi intérieure 14 de la coque 8 et la surface externe 7 de la paroi latérale 3 de la cuve 2.Indeed, a clearance J1, for example of the order of 1 to 3 mm for a jar of cosmetic cream of conventional volume, for example of the order of 60 mL, exists between the inner wall 14 of shell 8 and outer surface 7 of side wall 3 of tank 2.

L'élément en matériau élastomérique 19 est ménagé sur la surface intérieure de la bague 17. Il existe dans l'exemple représenté un jeu J entre l'élément en matériau élastomérique 19 et la surface externe 7 de la paroi latérale 3 de la cuve 2, à l'exception des zones en saillie dudit élément en matériau élastomérique 19. En pratique, chaque plot 20 forme une saillie d'une épaisseur supérieure au jeu J, lorsque le plot n'est pas soumis à une contrainte mécanique extérieure, notamment lorsque le plot 20 n'est pas déformé par compression.The elastomeric material element 19 is made on the inner surface of the ring 17. In the example shown, there is a clearance J between the elastomeric material element 19 and the outer surface 7 of the side wall 3 of the tank 2 , with the exception of the projecting zones of said element made of elastomeric material 19. In practice, each stud 20 forms a projection with a thickness greater than the clearance J, when the stud is not subjected to an external mechanical stress, in particular when the pad 20 is not deformed by compression.

Par exemple l'épaisseur du plot peut être de l'ordre de 1 mm, par exemple de l'ordre de 0,9 mm.For example, the thickness of the pad can be of the order of 1 mm, for example of the order of 0.9 mm.

Afin d'introduire la recharge 1 dans la coque 8 jusqu'à l'appui sur l'épaulement 13, il est nécessaire de déformer les plots 20 pour permettre l'introduction de la recharge 1 dans la coque 8.In order to introduce the refill 1 into the shell 8 until it presses against the shoulder 13, it is necessary to deform the studs 20 to allow the introduction of the refill 1 into the shell 8.

Lorsque la recharge 1 est dans la coque 8, chaque plot 20 est compressé et a donc une épaisseur égale au jeu J. Le plot 20 comble ainsi le jeu J et exerce du fait de son élasticité une force d'appui sur la paroi latérale 3 de la cuve 2 de la recharge 1.When the refill 1 is in the shell 8, each stud 20 is compressed and therefore has a thickness equal to the clearance J. The stud 20 thus fills the clearance J and, due to its elasticity, exerts a bearing force on the side wall 3 of tank 2 of refill 1.

Il y a avantageusement plusieurs plots d'appui répartis autour de la cuve 2, de sorte à répartir les appuis sur sa paroi latérale 3, et assurer un maintien efficace et uniforme de la cuve 2 dans la coque 8.There are advantageously several support studs distributed around the tank 2, so as to distribute the supports on its side wall 3, and ensure efficient and uniform maintenance of the tank 2 in the shell 8.

Un exemple de répartition des plots est visible à la figure 5. La figure 5 représente la bague 17 du mode de réalisation des figures 2 à 4, vue de dessous, c'est-à-dire avec au premier plan la face du joint orientée vers le fond de la coque lorsque la bague 17 est liée à la coque. Les trois plots 20 répartis régulièrement, à 120° d'angle entre eux, permettent un maintien uniforme et un parfait centrage de la cuve 2 lorsqu'elle est en place dans la coque 8, en interaction avec la bague 17.An example of the distribution of the studs is visible at figure 5 . There figure 5 represents the ring 17 of the embodiment of the figures 2 to 4 , bottom view, that is to say with in the foreground the face of the joint facing the bottom of the hull when the ring 17 is connected to the hull. The three studs 20 distributed regularly, at 120° angles between them, allow uniform support and perfect centering of the tank 2 when it is in place in the shell 8, in interaction with the ring 17.

Chaque zone d'appui, formée au niveau de chaque plot 20, forme une zone assurant un maintien de la cuve 2 (et donc de la recharge 1) dans la coque 8. Lorsqu'une force tendant à extraire la recharge 1 de la coque 8 est exercée, une force s'opposant à son extraction est créée, par réaction, au niveau des plots, du fait de l'interaction entre chaque plot 20 et la paroi latérale 3 de la recharge 1 sur laquelle les plots 20 sont comprimés. Cette force est générée par frottement du plot 20 sur la paroi externe de la cuve 2.Each support zone, formed at the level of each stud 20, forms a zone ensuring that the tank 2 (and therefore the refill 1) is held in the shell 8. When a force tending to extract the refill 1 from the shell 8 is exerted, a force opposing its extraction is created, by reaction, at the studs, due to the interaction between each stud 20 and the side wall 3 of the refill 1 on which the studs 20 are compressed. This force is generated by friction of stud 20 on the outer wall of tank 2.

Tant que la cuve 2 est immobile dans la coque 8, il s'agit d'une force de frottement dit sec, dont l'intensité est, pour chaque plot 20, au plus égale au coefficient de frottement statique entre le plots 20 multiplié par la force exercée entre la paroi intérieure 14 de la coque 8 et le plot 20 du fait de sa compression. Lorsque la force tendant à extraire la cuve de la coque 8 dépasse la somme des forces maximales de frottement statique exercées au niveau des plots 20, la recharge 1 commence à bouger vis-à-vis de la coque 8 pour son extraction.As long as the tank 2 is stationary in the shell 8, it is a so-called dry friction force, the intensity of which is, for each stud 20, at most equal to the coefficient of friction static between the studs 20 multiplied by the force exerted between the inner wall 14 of the shell 8 and the stud 20 due to its compression. When the force tending to extract the tank from the shell 8 exceeds the sum of the maximum static friction forces exerted at the level of the studs 20, the refill 1 begins to move vis-à-vis the shell 8 for its extraction.

Il apparait ainsi que le nombre de plots, leurs dimensions, le matériau élastomérique employé, ainsi que le matériau constituant la cuve 2 et l'état de surface externe 7 de la paroi latérale 3 de la cuve sont des paramètres qui permettent de moduler la force nécessaire à la mise en place et l'extraction de la recharge 1.It thus appears that the number of studs, their dimensions, the elastomeric material used, as well as the material constituting the tank 2 and the state of the external surface 7 of the side wall 3 of the tank are parameters which make it possible to modulate the force necessary for inserting and extracting refill 1.

En ce qui concerne l'élément en matériau élastomérique 19, le matériau qui le constitue, la surface d'appui totale (somme des surfaces d'appui) entre ledit élément en matériau élastomérique et la surface externe 7 de la paroi latérale 3 de la cuve, et la somme des forces exercées du fait de la compression dudit élément en matériau élastomérique sont des paramètres déterminants lors de la détermination de la configuration de l'élément en matériau élastomérique.With regard to the element made of elastomeric material 19, the material which constitutes it, the total bearing surface (sum of the bearing surfaces) between said element made of elastomeric material and the outer surface 7 of the side wall 3 of the tank, and the sum of the forces exerted due to the compression of said element made of elastomeric material are determining parameters when determining the configuration of the element made of elastomeric material.

Quel que soit le mode de réalisation considéré, il est recommandable, pour un pot de produit cosmétique, que la force nécessaire à l'extraction de la recharge soit au moins deux fois supérieure au poids de la recharge pleine, par exemple de l'ordre de deux fois et demi le poids de la recharge pleine.Whatever the embodiment considered, it is recommended, for a jar of cosmetic product, that the force required to extract the refill be at least twice greater than the weight of the full refill, for example of the order two and a half times the weight of the full refill.

La présence d'au moins trois plots régulièrement répartis, comme dans l'exemple représenté à la figure 5, permet en outre le centrage de la recharge dans la coque 8, comme évoqué ci-avant.The presence of at least three regularly distributed studs, as in the example shown in figure 5 , also allows the centering of the refill in the shell 8, as mentioned above.

Afin de faciliter la mise en place de la recharge 1 dans la coque 8, les plots 20 présentent, dans l'exemple représenté, une forme bombée selon la direction dite verticale qui correspond, en outre, à la direction d'introduction (et d'extraction) de la recharge, ce qui permet une compression progressive des plots lors de l'insertion de la recharge 1 dans la coque 8. Les plots 20 pourraient alternativement avoir une forme biseautée ou chanfreinée pour obtenir le même effet.In order to facilitate the placement of the refill 1 in the shell 8, the studs 20 have, in the example shown, a rounded shape in the so-called vertical direction which also corresponds to the direction of introduction (and extraction) of the refill, which allows a progressive compression of the pads during the insertion of the refill 1 in the shell 8. The pads 20 could alternatively have a beveled or chamfered shape to obtain the same effect.

La présente invention n'est évidemment pas limitée au mode de réalisation détaillé ci-avant. Notamment, la configuration respective de l'élément en matériau élastomérique, de la recharge et/ou de la coque peut être très différente des configurations décrites ci-avant. Par exemple, la présence de plots sur l'élément en matériau élastomérique est optionnelle, dès lors qu'au moins une partie dudit élément en matériau élastomérique est en relief par rapport à la surface intérieure de la bague. Des formes très variées d'éléments en matériau élastomérique sont envisageables.The present invention is obviously not limited to the embodiment detailed above. In particular, the respective configuration of the element made of elastomeric material, of the refill and/or of the shell can be very different from the configurations described above. For example, the presence of studs on the element made of elastomeric material is optional, provided that at least part of said element made of elastomeric material is in relief relative to the inner surface of the ring. Very varied shapes of elements made of elastomeric material can be envisaged.

Plusieurs éléments en matériau élastomérique distincts peuvent être présents sur une même coque.Several distinct elastomeric material elements may be present on the same shell.

La cuve peut avoir des formes et des constitutions variées, selon l'application considérée. De même, la coque peut avoir des formes et des constitutions variées. Par exemple la cuve peut être cubique, cylindrique, cubique ou parallélépipédique, sphérique, et peut ou non présenter un fond, ou être dotée d'un orifice dans son fond pour faciliter l'extraction d'une recharge.The tank can have various shapes and constructions, depending on the application considered. Similarly, the shell can have various shapes and constitutions. For example, the tank may be cubic, cylindrical, cubic or parallelepiped, spherical, and may or may not have a bottom, or be provided with an orifice in its bottom to facilitate the extraction of a refill.

L'invention ainsi développée permet le maintien amovible d'une recharge de produit cosmétique dans une coque afin de former un dispositif de conditionnement de produit cosmétique esthétique et rechargeable par échange de la recharge. Le maintien est obtenu par friction de l'élément en matériau élastomérique sur une surface externe d'une paroi de la recharge. Les moyens de maintien, notamment l'élément en matériau élastomérique, peuvent être totalement invisibles une fois le pot constitué, et être peu visibles dans la coque.The invention thus developed allows the removable retention of a cosmetic product refill in a shell in order to form an aesthetic and refillable cosmetic product packaging device by exchanging the refill. Holding is obtained by friction of the element made of elastomeric material on an external surface of a wall of the refill. The holding means, in particular the element made of elastomeric material, can be totally invisible once the pot is made, and can be barely visible in the shell.

En outre, la recharge peut avoir une forme simple à produire, car la surface externe de la cuve de la recharge qui est destinée à interagir avec l'élément en matériau élastomérique de la coque pour le maintien de la recharge ne nécessite la formation d'aucun dispositif mécanique particulier de clipsage. Un récipient préexistant, par exemple un récipient de verrerie classique, une cuve simple en plastique, en métal, etc. peut ainsi être employé sans adaptation en tant que cuve de la recharge du dispositif de conditionnement de produit cosmétique.In addition, the refill can have a shape that is simple to produce, because the outer surface of the tank of the refill which is intended to interact with the element of elastomeric material of the shell for holding the refill does not require the formation of no special mechanical clipping device. A pre-existing vessel, e.g. a conventional glassware vessel, a single tank made of plastic, metal, etc. can thus be used without adaptation as a tank for the refill of the cosmetic product packaging device.

Claims (15)

Coque pour dispositif rechargeable de conditionnement de produit cosmétique, ladite coque (8) étant adaptée à recevoir une recharge (1) adaptée à contenir ledit produit cosmétique, la coque (8) comportant une ouverture (9) formant un col (11) de la coque et qui est adaptée à recevoir la recharge afin de la mettre en place dans un volume de réception défini par une paroi intérieure (14) de la coque, caractérisée en ce que ladite coque comporte en outre une bague (17) liée au col (11), ladite bague (17) s'étendant sur au moins une portion de la paroi intérieure de la coque formant ledit col (11), et en ce que ladite bague (17) comporte une surface intérieure (18) à laquelle est liée un élément en matériau élastomérique (19) qui est au moins pour partie en relief vis-à-vis de ladite surface intérieure de la bague (17). Shell for refillable cosmetic product packaging device, said shell (8) being adapted to receive a refill (1) adapted to contain said cosmetic product, the shell (8) comprising an opening (9) forming a neck (11) of the shell and which is adapted to receive the refill in order to place it in a reception volume defined by an interior wall (14) of the shell , characterized in that said shell further comprises a ring (17) connected to the neck (11), said ring (17) extending over at least a portion of the inner wall of the shell forming said neck (11), and in that said ring (17) has an inner surface (18) to which is bonded an element of elastomeric material (19) which is at least partly in relief vis-à-vis said inner surface of the ring (17 ). Coque selon la revendication 1, dans laquelle l'élément en matériau élastomérique (19) est surmoulé sur la bague (17).Hull according to Claim 1, in which the element made of elastomeric material (19) is molded over the ring (17). Coque selon la revendication 1, dans laquelle la bague (17) est formée d'un matériau plastique, dans laquelle ladite bague (17) et l'élément en matériau élastomérique (19) qui lui est lié sont formés ensemble par injection bi-matière.Shell according to Claim 1, in which the ring (17) is formed of a plastic material, in which the said ring (17) and the element of elastomeric material (19) which is connected to it are formed together by bi-material injection . Coque selon l'une des revendications précédentes, dans laquelle le matériau élastomérique est un thermoplastique élastomère ou un silicone élastomère.Shell according to one of the preceding claims, in which the elastomeric material is an elastomeric thermoplastic or an elastomeric silicone. Coque selon l'une des revendications précédentes, dans lequel le matériau élastomérique a une dureté comprise entre 20 degrés shore et 80 degrés shore, et de préférence comprise entre 40 degrés shore et 60 degrés shore.Hull according to one of the preceding claims, in which the elastomeric material has a hardness of between 20 degrees shore and 80 degrees shore, and preferably between 40 degrees shore and 60 degrees shore. Coque selon l'une des revendications 1 à 5, dans laquelle l'élément en matériau élastomérique forme des plots (20) discrets répartis sur la surface intérieure de la bague.Shell according to one of Claims 1 to 5, in which the element made of elastomeric material forms discrete studs (20) distributed over the inner surface of the ring. Coque selon l'une des revendications 1 à 5, dans laquelle l'élément en matériau élastomérique (19) s'étend selon une ou plusieurs bandes parallèles à l'ouverture (9) de la coque (8).Shell according to one of Claims 1 to 5, in which the element of elastomeric material (19) extends along one or more strips parallel to the opening (9) of the shell (8). Coque selon l'une des revendications précédentes, ledit volume de réception étant de forme générale cylindrique de révolution, ou tronconique, ou prismatique droite.Shell according to one of the preceding claims, said receiving volume being of generally cylindrical shape of revolution, or frustoconical, or straight prismatic. Coque selon l'une des revendications précédentes constituée majoritairement en matériau plastique, en verre, en acier inoxydable, en aluminium, ou en bois.Shell according to one of the preceding claims consisting mainly of plastic material, glass, stainless steel, aluminum or wood. Coque selon l'une des revendications précédentes, dans laquelle la bague (17) est liée au col (11) par clipsage et/ou par collage.Shell according to one of the preceding claims, in which the ring (17) is linked to the neck (11) by clipping and/or by gluing. Dispositif de conditionnement pour produit cosmétique comportant une coque (8) selon l'une des revendications précédentes et une recharge (1) dans lequel la recharge (1) comporte une paroi latérale (3) présentant un jeu (J1) vis-à-vis de la paroi intérieure (14) de la coque (8), sauf au niveau de tout ou partie de l'élément en matériau élastomérique (19), de sorte que des zones d'appui de l'élément en matériau élastomérique (19) sur ladite paroi latérale (3) de recharge sont formées.Packaging device for cosmetic product comprising a shell (8) according to one of the preceding claims and a refill (1) in which the refill (1) comprises a side wall (3) having a clearance (J1) vis-à-vis of the inner wall (14) of the shell (8), except at the level of all or part of the element made of elastomeric material (19), so that the support zones of the element made of elastomeric material (19) on said refill side wall (3) are formed. Dispositif de conditionnement pour produit cosmétique selon la revendication 11, dans lequel l'élément en matériau élastomérique (19) est déformé dans lesdites zones d'appui par compression sur la paroi latérale (3) de la recharge (1) comparativement à une configuration que l'élément en matériau élastomérique (19) adopte en l'absence de sollicitations extérieures.Packaging device for cosmetic product according to Claim 11, in which the element of elastomeric material (19) is deformed in the said bearing zones by compression on the side wall (3) of the refill (1) compared to a configuration that the element of elastomeric material (19) adopts in the absence of external stresses. Dispositif de conditionnement selon la revendication 11 ou la revendication 12, dans lequel ladite paroi latérale (3) de la recharge (1) est dénuée d'aspérités telles que des rainures, orifices, pions ou anneaux d'encliquetage, au moins dans une zone d'interaction de ladite paroi latérale (3) avec l'élément en matériau élastomérique (19).Packaging device according to Claim 11 or Claim 12, in which the said side wall (3) of the refill (1) is devoid of asperities such as grooves, orifices, pins or snap rings, at least in one area interaction of said side wall (3) with the element of elastomeric material (19). Dispositif de conditionnement selon l'une des revendications 11 à 13, la forme, les dimensions et la constitution de l'élément en matériau élastomérique étant configurées de sorte qu'une force nécessaire à l'extraction de la recharge (1) de la coque (8) est supérieure ou égale à deux fois, et préférentiellement supérieure ou égale à deux fois et demi, le poids de la recharge (1).Packaging device according to one of Claims 11 to 13, the shape, dimensions and construction of the element made of elastomeric material being configured so that a force necessary for extracting the refill (1) from the shell (8) is greater than or equal to twice, and preferably greater than or equal to two and a half times, the weight of the refill (1). Dispositif de conditionnement selon l'une des revendications 11 à 14, dans lequel la recharge comporte une cuve, et dans lequel la cuve comporte un couvercle lié par encliquetage ou vissage au reste de ladite cuve.Packaging device according to one of Claims 11 to 14, in which the refill comprises a tank, and in which the tank comprises a lid connected by snap-fastening or screwing to the rest of the said tank.
EP22198907.2A 2021-09-30 2022-09-29 Shell of a rechargeable device for packaging a cosmetic product and associated packaging device Active EP4159083B1 (en)

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FR2110306A FR3127485B1 (en) 2021-09-30 2021-09-30 Shell of a rechargeable device for packaging a cosmetic product and associated packaging device

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EP (1) EP4159083B1 (en)
JP (1) JP2023051857A (en)
KR (1) KR20230047037A (en)
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USD996720S1 (en) * 2021-04-09 2023-08-22 Ellikpark Co., Ltd. Cosmetic container
USD1018994S1 (en) * 2021-12-22 2024-03-19 Glow Recipe Cosmetic container

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FR3067327A1 (en) * 2017-06-07 2018-12-14 Verescence France GLASS RECHARGEABLE CONTAINER NOMAD
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CN115892720A (en) 2023-04-04
JP2023051857A (en) 2023-04-11
KR20230047037A (en) 2023-04-06
EP4159083B1 (en) 2024-04-03
US20230107932A1 (en) 2023-04-06
FR3127485B1 (en) 2023-10-06

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