JAR DESIGNED TO HOLD A REMOVABLE COSMETIC PRODUCT CARTRIDGE

Abstract

A cosmetic product container (1) includes a body (12) for receiving a removable cosmetic product cartridge (300), and a mechanism for guiding the movement of the removable cartridge (300) relative to the body (12). The mechanism includes a drive ring (100), a retaining ring (200) for the removable cartridge (300), a kinematic linkage between the drive ring (100) and the body (12) with a single degree of freedom, rotating about the reference axis (O), a kinematic linkage between the drive ring (100) and the retaining ring (200) with a single degree of freedom, translating along the reference axis (O), and a kinematic linkage between the retaining ring (200) and the body (12) with a single degree of freedom, a helical movement along the helical path. (Shorthand figure: 1)

Description

Title of the invention: Jar for holding a removable cartridge of cosmetic product. Technical field of the invention.

[0001] The invention relates to a jar intended to contain, for individual use, a removable cartridge containing a cosmetic product, for example a skincare cream or a makeup powder. It also relates to a jar containing the removable cartridge. PREVIOUS STATE OF THE ART

[0002] Document WO 2023 / 280 429 proposed a pot of the preceding type, equipped with a guide mechanism for the removable cartridge to facilitate its insertion into the pot body. Specifically, a threaded connection is made directly between the removable cartridge and the pot body, guiding a relative helical movement between the cartridge and the pot body during insertion and removal. However, handling the cartridge for removal proves difficult, with a risk of soiling. Furthermore, the pot body is closed by a screw-on lid, which rests directly against the removable cartridge. The tolerance chains required to define the airtight contact between the lid and the cartridge are such that it is difficult to achieve the desired seal without imposing very strict manufacturing and assembly tolerances, incompatible with industrial production. Description of the invention

[0003] The invention aims to remedy the drawbacks of the prior art and to propose a pot intended to hold a removable cartridge of cosmetic product whose mechanism allows the replacement of the cartridge with good ergonomics, and preferably without affecting the sealing.

[0004] To this end, according to a first aspect of the invention, a container for a cosmetic product is proposed, comprising a body for receiving a removable cartridge of cosmetic product, and a mechanism for guiding the movement of the removable cartridge relative to the body between a position of use in which the removable cartridge is housed in the body and a replacement position in which the removable cartridge is at least partially protruding from the body parallel to a reference axis, along a helical path around the reference axis. According to the invention, the mechanism comprises a drive ring, a retaining ring for the removable cartridge, and a kinematic linkage between the drive ring and the body, with a single degree of freedom of movement, in rotation around the reference axis, a kinematic link between the drive ring and the retaining ring with a single degree of freedom of movement, in translation along the reference axis, and a kinematic link between the retaining ring and the body, with a single degree of freedom of movement, of helical movement along the helical trajectory.

[0005] The guiding mechanism transforms a rotational movement of the drive ring relative to the body into a helical movement of the cartridge relative to the body. By holding the container body with one hand and rotating the drive ring with the other, the consumer can insert or remove the cartridge from the body smoothly and without undue effort, without direct contact with either the cartridge or the retaining ring.

[0006] In one embodiment, the drive ring covers an annular upper edge of the body, making it easily accessible. Preferably, the drive ring has an outer face facing radially outwards and not covered by the body. Even more preferably, the outer face of the drive ring forms a surface of revolution around the reference axis, for example, cylindrical or frustoconical. This covering of the annular upper edge of the body can be achieved by a flange on the drive ring.

[0007] According to one embodiment, the kinematic link between the body and the drive ring comprises one or more circular or arc-shaped slides and one or more slides capable of sliding in the circular or arc-shaped slide(s).

[0008] In the present description and claims, a slide means a groove having a bottom, a bottomless slot or a series of one or more grooves and one or more slots, defining a linear, curved or rectilinear trajectory.

[0009] The arc-shaped or circular slide(s) may be formed on the body and the slide(s) on the drive ring, or vice versa. Alternatively, one or more slides formed on the body may be associated with one or more slides formed on the drive ring, and one or more slides formed on the drive ring may be associated with one or more slides formed on the body.

[0010] Where applicable, the slide(s) are dovetailed, in the sense that once inserted into the arc or circular slide(s), they cannot, under normal use, be extracted by pulling parallel to the reference axis.

[0011] Where applicable, the slide(s) shall have end stops for the associated slides, in order to limit the amplitude of rotation of the ring training in relation to the body.

[0012] According to one embodiment, the kinematic link between the body and the retaining ring comprises one or more helical or helical-arc slides and one or more slides adapted to slide in the helical or helical-arc slide(s). Preferably, N helical-arc slides are arranged at an angle 2Vw to each other around the reference axis, where N is an integer greater than or equal to 3. In practice, to limit friction, N=3 is preferred, which preserves the isostaticity of the mechanism.

[0013] The helical or helical arc slide(s) are preferably formed in the body, and the associated slides are mounted on the retaining ring, projecting radially outwards. The slides may be formed by guide pins, for example, cylindrical pins. In one embodiment, the body has one or more insertion slides allowing the insertion of the slide(s) of the kinematic linkage between the body and the retaining ring into the helical or helical arc slide(s) of the kinematic linkage between the body and the retaining ring.

[0014] According to one embodiment, the kinematic link between the drive ring and the retaining ring comprises one or more guide rails, oriented parallel to the reference axis, and one or more slides capable of sliding in the guide rail(s).

[0015] According to one embodiment, the mechanism comprises one or more guide pins, each constituting both a slide among the slide(s) of the kinematic linkage between the drive ring and the retaining ring and a slide among the slide(s) of the kinematic linkage between the body and the retaining ring. The desired guidance is thus obtained with significant economy of means.

[0016] Preferably, the guide pin(s) are integral with the retaining ring and pass through one or more bottomless guide slides formed in the drive ring to establish the kinematic link between the drive ring and the retaining ring. They then enter one or more helical slides formed in the pot body to establish the kinematic link between the retaining ring and the body. The guide slide(s) are formed in a wall of the drive ring located radially between a wall of the retaining ring that carries the pin(s) and a wall of the pot body, in which the helical slide(s) are formed.

[0017] According to one embodiment, the retaining ring slides in translation inside the drive ring.

[0018] According to one embodiment, the retaining ring comprises a shoulder ring retainer, preferably flat, intended to come into contact with a collar of the removable cartridge.

[0019] According to one embodiment, the retaining ring includes an annular step designed to come into contact with a shoulder formed on the body. In other words, at least a portion of the retaining ring is configured to abut against at least a portion of the body in the operating position. This feature allows for greater control over the position of the various rings within the container and ensures a seal for the container.

[0020] According to one embodiment, in the operating position, the annular step of the retaining ring and the drive ring are located at the same radial distance from the reference axis.

[0021] According to one embodiment, in the operating position, the annular step of the retaining ring and the drive ring are located at the same radial distance from the reference axis.

[0022] According to one embodiment, the body has a closed or open bottom.

[0023] According to one embodiment, the pot further comprises a lid, preferably The lid is screwed onto an external thread formed on an outer wall of the body. It protects the contents of the container while securing the drive ring and retaining ring. In one embodiment, the lid, when closed, rests against a flat annular surface of the removable cartridge when the cartridge is housed in the container. The lid then holds the cartridge, drive ring, and retaining ring in position.

[0024] According to one embodiment, the body has a height measured parallel to the reference axis, and a large diameter, measured in a plane perpendicular to the reference axis, greater than one and a half times the height.

[0025] According to one embodiment, the pot further comprises a removable cartridge housed within the body and secured by friction to the retaining ring. This connection allows the removable cartridge to follow the movement of the retaining ring relative to the body. The cartridge can be separated from the retaining ring by applying sufficient force or torque. Other types of connection may be considered if necessary.

[0026] According to one embodiment, the removable cartridge contains a cosmetic product and is closed by a lid, preferably rigid, preferably discoidal, and preferably equipped with an opening ring or a tab. BRIEF DESCRIPTION OF THE FIGURES

[0027] Other features and advantages of the invention will become apparent upon reading the The following description refers to the attached figures.

[0028] [Fig.1] Fig.1 illustrates a schematic exploded isometric view of a pot and a removable cartridge.

[0029] [Fig.2] Fig.2 illustrates a schematic cross-sectional view of the pot, from the side when the removable cartridge is in a replacement position.

[0030] [Fig.3] The [Fig.3] illustrates a detailed schematic cross-sectional view of the pot, from the side when the removable cartridge is in a replacement position, following detail O of the [Fig.2],

[0031] [Fig.4] Fig.4 illustrates a detailed schematic cross-sectional view of the pot, from the side when the removable cartridge is in a position of use.

[0032] For clarity, identical or similar elements are identified by identical reference signs throughout the figures. DETAILED description of implementation methods

[0033] Figures 1 to 4 illustrate a pot 1 comprising a body 12 whose outer shell preferably has rotational symmetry about a reference axis O. The body 12 has a preferably closed, preferably flat, bottom 18. The body 12 has an annular upper edge 20, extended vertically towards the bottom by a lateral wall 22 of the body 12.

[0034] The body 12 is preferably a single piece and made of a material suitable for injection molding, for example HDPE or PP. However, other types of material are possible, allowing for additive manufacturing or machining. The body 12 can thus be made of a noble or natural material, for example metal or wood.

[0035] In a storage or use position, the pot 1 rests on its base 18, and the reference axis O is oriented vertically, defining an upward direction which will be used in the following to position the constituent elements of the pot relative to each other.

[0036] The lateral wall 22 of the body 12 comprises a thin portion A forming a surface of revolution around the reference axis O and which includes the annular upper edge 20, an annular thick portion B, located vertically below the thin portion A along the reference axis O, and whose thickness, measured in the radial direction, is greater than the thickness of the rest of the wall 22, and a continuous portion C, of ​​relatively constant thickness, located vertically below the thick portion B, and constituting the link between the thick portion B and the bottom 18. This portion is preferably curved, and forms a first flat shoulder 30.

[0037] The lateral wall 22 of the body 12 has an inner face 22a oriented radially towards the reference axis O. On the inner face 22a, at the level of the thick portion B, open three helical-shaped slides 24, each extending over an angle less than 2V3, and preferably less than T / 2, around the reference axis O. The three helical slides 24 are preferably equidistant from each other. The three helical slides 24 have the same helix pitch and each extends over an identical height, measured parallel to the reference axis O, which is preferably greater than 2 mm, for example, a height greater than 8 mm. They are not through-slides in the sense that they do not radially pass through the thick portion B. Each helical slide 24 has two ends forming, respectively, a lower stop 32 and an upper stop 34.

[0038] On the inner face 22a also open three insertion slides 26 parallel to each other and preferably parallel to the reference axis O which each extend vertically from one of the helical slides 24 towards the upper edge 20. The insertion slides 26 are non-through on the thick portion B, and where applicable through on a part 26' at the level of the thin portion A.

[0039] The wall 22 of the body 12 has an outer face 22b, facing radially outwards and opposite the inner face 22a. The outer face 22b has radial gripping projections 28 ([Fig.3]) on the thin portion A at the upper edge 20, each extending in an arc around the reference axis O and separated in pairs by the through portions 26' of the insertion slides 26. The upper edge 20 of the body 12, with the annular projection 28, forms the thin portion A. Alternatively, in an embodiment where the insertion slides 26 are not through-holes along their entire height, the gripping projections 28 can be replaced by a single annular gripping projection.

[0040] The thin portion A is configured to fit into an annular cavity 102 of a drive ring 100, the annular cavity 102 being delimited by a drive flange 104 of the drive ring 100 ([Fig. 3]). The annular cavity 102 has a second gripping projection 106, preferably annular, or optionally composed of several arc-shaped portions. The annular cavity 102 of the drive ring 100 constitutes an annular slide 108 whose profile is complementary to that of the gripping projections 28, which allows the body 12 and the drive ring 100 to be linked while preserving a single degree of rotational freedom about the axis O.

[0041] The drive ring 100 has a drive wall 110 of generally cylindrical shape, connected by an upper drive edge 112 to the drive collar 104.

[0042] The drive wall 110 has an outer diameter smaller than an inner diameter of the inner face 22A of the body 12 in order to fit into the body 12. When the thin portion A of the body 12 is inserted into the annular cavity 102 of the drive ring 100, the drive wall 110 is preferably not in contact with the inner face 22a of the body 12. The radial thickness and axial height of the wall of the drive collar 104 are such that when the thin portion A is inserted into the annular cavity 102, the drive collar 104 is preferably flush with the outer face, and at a very short distance from the thick portion B, constituting an extension of the latter.

[0043] The drive wall 110 has three slotted drive slides 114. The three drive slides 114 are equidistant from each other. Each of these three slides 114 extends parallel to the reference axis O from a lower drive edge 116 of the drive wall 110 to the upper drive edge 112 over a distance less than the height of the drive ring 100.

[0044] The pot 1 includes a retaining ring 200. The retaining ring 200 is here made of two parts joined together, namely a retaining body 202 and a support ring 212 at an upper end 204 of the retaining body 202. This embodiment allows for the choice of two different materials for the support ring and the retaining body, and in particular the choice of an elastomer material for the support ring 212. However, an embodiment in a single part and a single material is also conceivable. The retaining body 202 constitutes a generally cylindrical retaining wall 206, which extends axially from the upper end portion 204 to an annular step 210 projecting radially and axially relative to the retaining wall 206.

[0045] The cylindrical wall 206 of the retaining body 202 has an outer diameter smaller than the inner diameter of the drive wall 110. The annular step 210 has an outer diameter smaller than the inner diameter of the continuous portion C of the wall 22 of the body 12 and substantially equal to the outer diameter of the drive ring 100. These dimensions allow the retaining ring 200 to be inserted inside the drive ring 100 and the continuous portion C of the wall 22 of the body 12.

[0046] The retaining body 202 has three guide slides 208, which here are made up of three guide pins projecting radially from the cylindrical wall of the retaining body 202, equally distributed around the reference axis.

[0047] During the assembly of the pot 1, the retaining ring 200 is inserted axially into the body 12. During this insertion, the guide slides 208 are each inserted into a guide rail 26 until they reach the associated helical rail 24. In this position, an annular space is defined between the inner face 22a of the wall 22 and the retaining body 202. This annular space is traversed by the guide pins 208. It is possible to insert the drive ring 100 axially into this annular space, aligning the three guide slides 208 with the three drive slides 114. When the drive ring 100 approaches a functional position (illustrated in [Fig. 2]), i.e., the position in which the drive ring 100 will be used by a consumer, the upper edge 20 of the wall 22 of the body 12 forming the thin portion A enters the annular cavity 102 of the drive ring 100. When the drive ring 100 enters the functional position, the second annular projection 106 of the annular cavity 102 and the annular projection 28 of the thin portion A interlock elastically, thus restricting the drive ring 100 to a pivoting movement around the reference axis O. The guide pins 208 of the retaining ring 200 then each pass through the drive wall 110 of the drive ring 100, via the slides slotted drive 114, to penetrate the helical slides 24 of the wall 22 of the body 12.

[0048] The pot 1 is configured to accommodate a removable cartridge 300. The removable cartridge 300 comprises a sealed chamber 304 whose upper end forms a radially projecting ring 302.

[0049] The dimensions of the tank 304 and the ring 302 are such that it is possible to insert the removable cartridge 300 into the retaining ring 200, until the ring 302 comes into axial contact against a flat shoulder 213 of the support ring 212. In particular, it is advantageous to provide that the wall of the tank 304 is slightly frustoconical, to avoid friction against the retaining ring 200.

[0050] Where appropriate, it may be provided that the ring 302 has an outside diameter greater than the outside diameter of the retaining body 202. In this case, the ring 302 enters at least partially into an annular recess 120 provided at the level of the upper drive edge 112.

[0051] The removable cartridge 300 is configured to contain one or more cosmetic products, in liquid, paste, or solid form, for example, a powder. The removable cartridge 300 is preferably provided with a lid 308, said lid 308 being discoidal and preferably rigid. The lid 308 is configured to seal the removable cartridge 300 and is intended to be at least partially removed upon first use, in particular by means of an opening ring 310.

[0052] The pot 1 preferably comprises a lid 10, illustrated in [Fig. 4]. The lid 10 is configured to be screwed onto a thread 36 of the body 12. The thread 36 is formed on the outer face of the wall 22 of the body 12.

[0053] When the cover 10 is screwed onto the thread 36 of the body 12, the cover 10 comes to rest against a flat annular bearing surface 118 of the ring 302.

[0054] When the cover 10 is screwed onto the thread 36 and the cover 10 is resting on the flat annular bearing surface 118, this allows the removable cartridge 300 to be held immobile in the pot 1.

[0055] When the consumer wants to insert a new removable cartridge 300 into the container 1, they unscrew the lid 10 and then rotate the drive ring 100 in a direction of unscrewing S relative to the body 12 of the container 1, using their hands for example. Since the guide slides 208 are positioned in the drive rails 114, the retaining ring is fixed in rotation, but free in axial translation relative to the drive ring. Since the guide slides 208 are also inserted into the helical slides 24, the retaining ring follows a helical trajectory around the axis O relative to the body 12. As the guide slides 208 advance along the helical trajectory, constrained by the drive ring 100 rotated by the consumer, the retaining ring 200 rises relative to the body 12 towards a replacement position (illustrated in [Fig.2]).

[0056] In the replacement position, the guide pins 208 abut against the upper stop 34, and / or the annular step 210 abuts against the lower drive edge 116 of the drive body 110. The annular step 210, when abutted, distributes the force(s) induced by the rotation of the drive ring 100 and partially or completely relieves the guide pins 208 if the user attempts to move beyond the replacement position. The first shoulder 30 of the inner face 22a of the wall 22 of the body 12 and the lower drive edge 116 of the drive body 110 of the drive ring 100 are therefore the limits of the vertical translation of the retaining ring 200 relative to the drive ring 100.

[0057] In the replacement position, the consumer can, if necessary, remove a used removable cartridge, and insert a new removable cartridge 300 into the retaining ring 200, so that the crown 302 of the removable cartridge 300 rests on the support ring 212 or, in the absence of a support ring 212, directly on the upper end 204 of the retaining body 202.

[0058] The consumer can then rotate the drive ring 100 in a screwing direction opposite to the unscrewing direction S in order to lower the retaining ring 200 to the operating position (illustrated in [Fig.4]).

[0059] In the operating position, the guide pins 208 abut against the lower stop 32, and / or the annular step 210 abuts against the first shoulder 30 of the inner face 22a of the wall 22 of the body 12. The annular step 210, when abutted, allows the guide pins 208 to be partially or completely relieved if the user attempts to move beyond the operating position. The retaining annular shoulder 213 is located inside the drive ring 200.

[0060] Furthermore, the annular step 210, abutting the first shoulder 30, also allows the user to precisely reach the operating position of the removable cartridge 300, so that the ring 302 of said removable cartridge 300 comes into contact with the cover 10 when the product is stored by the user. This operating position This allows the removable 300 cartridge to be airtight and prevent the product(s) it contains from leaking into the pot 1.

[0061] The body 12, the drive ring 100, the retaining ring 200, and the cover 10 can be made of plastic and / or metallic materials. The cover 10, the body 12, the drive ring 100, the retaining ring 200, and the removable cartridge 300 are preferably injection-molded parts.

[0062] The lid 308 is preferably made of plastic and / or metallic materials and / or plant material such as paper, cardboard, plant-based plastics.

[0063] Naturally, the examples shown in the figures and discussed above are given only for illustrative purposes and are not intended to be limiting.

[0064] According to an unillustrated variant, the pot 1 has a closed and flat discoidal base 18 whose wall rises towards the thick portion B at an angle of 90°. In other words, the continuous portion C forms a cylinder with a circular base.

[0065] The number of slides 24 and guide pins 208 can be any number, preferably greater than or equal to three.

[0066] The body 12 of the pot 1 may optionally be bottomless 18, or with an open bottom.

Claims

Demands

1. A jar (1) for cosmetic product, comprising a body (12) for receiving a removable cartridge (300) of cosmetic product, and a mechanism for guiding movement of the removable cartridge (300) relative to the body (12) between a use position in which the removable cartridge (300) is housed in the body (12) and a replacement position, in which the removable cartridge (300) is at least partially protruding from the body (12) parallel to a reference axis (O), along a helical path around the reference axis (O), characterized in that the mechanism comprises a drive ring (100), a retaining ring (200) for the removable cartridge (300), a kinematic linkage between the drive ring (100) and the body (12), with a single degree of freedom of movement, rotating about the reference axis (O),a kinematic link between the drive ring (100) and the retaining ring (200) with a single degree of freedom of movement, in translation along the reference axis (O), and a kinematic link between the retaining ring (200) and the body (12), with a single degree of freedom of movement, of helical motion along the helical trajectory.

2. Pot (1) according to claim 1, characterized in that the drive ring (100) covers an annular upper edge (20) of the body (12).

3. Pot (1) according to any one of claims 1 or 2, characterized in that the drive ring (100) has an outer face facing radially outwards not covered by the body (12).

4. Pot (1) according to claim 3, characterized in that the outer face of the drive ring (100) constitutes a surface of revolution around the reference axis (O), for example cylindrical or frustoconical.

5. Pot (1) according to any one of the preceding claims, characterized in that the kinematic link between the body (12) and the drive ring (100) comprises one or more circular or arc-shaped slides (24) and one or more slides capable of sliding in the circular or arc-shaped slide(s) (24).

6. Pot (1) according to any one of the preceding claims, characterized in that the kinematic link between the body (12) and the retaining ring (200) comprises one or more helical slides (24) or in a helical arc and one or more slides suitable for sliding in the slide(s) (24) in a helical or helical arc.

7. Pot (1) according to claim 6, characterized in that the body (12) has one or more insertion slides (26) allowing the insertion of the slide(s) of the kinematic link between the body (12) and the retaining ring (200) into the helical or helical arc slide(s) (24) of the kinematic link between the body (12) and the retaining ring (200).

8. Pot (1) according to any one of the preceding claims, characterized in that the kinematic link between the drive ring (100) and the retaining ring (200) comprises one or more guide rails (114) and one or more slides capable of sliding in the guide rail(s) (114).

9. Pot (1) according to claim 8 in combination with claim 6 or claim 7, characterized in that the mechanism comprises one or more guide pins (208), each constituting both a slide among the slide(s) of the kinematic link between the drive ring (100) and the retaining ring (200) and a slide among the slide(s) of the kinematic link between the body (12) and the retaining ring (200).

10. Pot (1) according to claim 9, characterized in that the guide pin(s) (208) are integral with the retaining ring (200), and pass through one or more guide slides (114) formed in the drive ring (100) to achieve the kinematic link between the drive ring (100) and the retaining ring (200), then enter one or more helical slides (24) formed in the body (12) of the pot (1) to achieve the kinematic link between the retaining ring (200) and the body (12) of the pot (1).

11. Pot (1) according to claim 10, characterized in that the guide slide(s) (114) are formed in a wall (110) of the drive ring (100) located radially between a retaining wall (206) of the retaining ring (200) which carries the pin(s) (208) and a wall (22) of the body (12) of the pot (1), in which the helical slide(s) (24) are formed.

12. Pot (1) according to any one of the preceding claims, characterized in that the retaining ring (200) has an annular retaining shoulder (213), preferably flat, intended to come into contact with a collar (302) of the removable cartridge (300).

13. Pot (1) according to claim 12, characterized in that in the position of use, the annular retaining shoulder (213) of the retaining ring (200) is located inside the drive ring (100).

14. Pot (1) according to any one of the preceding claims, characterized in that at least a part of the retaining ring (200) is configured to butt against at least a part of the body (12) in the position of use.

15. Pot (1) according to any one of the preceding claims, characterized in that it further comprises a removable cartridge (300) housed in the body and secured by friction to the retaining ring (200).

16. Pot (1) according to claim 15, characterized in that the removable cartridge (300) contains a cosmetic product and is closed by a lid (308), preferably rigid, preferably discoidal, and preferably equipped with an opening ring (310) or a tab.

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