Pot for receiving a removable cartridge of cosmetic product

Abstract

A pot (1) for a cosmetic product comprises a body (12) intended to receive a removable cartridge (300) of cosmetic product, and a mechanism for guiding a movement of the removable cartridge (300) relative to the body (12). The mechanism comprises a drive ring (100), a retaining ring (200) of the removable cartridge (300), a kinematic connection between the drive ring (100) and the body (12), with a single degree of freedom of movement, in rotation about the reference axis (O), a kinematic connection 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 connection between the retaining ring (200) and the body (12), with a single degree of freedom of movement, of helical movement along the helical trajectory.

Description

TECHNICAL FIELD OF THE INVENTION

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

[0002] In document WO 2023 / 280 429 a pot of the above type was proposed, which is equipped with a mechanism for guiding the removable cartridge, to facilitate its insertion into the body of the pot. In this case, a threaded connection is made directly between the removable cartridge and the body of the pot, making it possible to guide a relative helical movement between the removable cartridge and the body of the pot during insertion and removal. However, handling the cartridge for its removal is difficult, with a risk of getting dirty. Furthermore, the body of the pot is closed by a screwed lid, which bears directly against the removable cartridge. The dimension chains to be respected to define the hermetic contact between the lid and the cartridge are then such that it is difficult to obtain the desired seal without imposing very strict manufacturing and assembly tolerances, incompatible with industrial manufacturing. STATEMENT OF THE INVENTION

[0003] The invention aims to remedy the drawbacks of the state of the art and to propose a pot intended to accommodate a removable cartridge of cosmetic product, the mechanism of which allows the cartridge to be replaced with good ergonomics, and preferably without compromising the seal.

[0004] To this end, according to a first aspect of the invention, a pot for a cosmetic product is proposed, comprising a body intended to receive a removable cartridge of cosmetic product, and a mechanism for guiding a 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 projecting relative to the body parallel to a reference axis, along a helical trajectory around the reference axis.According to the invention, the mechanism comprises a drive ring, a ring for holding the removable cartridge, a kinematic connection between the drive ring and the body, with a single degree of freedom of movement, in rotation around the reference axis, a kinematic connection between the drive ring and the holding ring with a single degree of freedom of movement, in translation along the reference axis, and a kinematic connection between the holding ring and the body, with a single degree of freedom of movement, of helical movement along the helical trajectory.

[0005] The guide mechanism allows a rotational movement of the drive ring relative to the body to be transformed into a helical movement of the cartridge relative to the body. By taking the body of the pot with one hand and applying the rotational movement of the drive ring with the other hand, the consumer can insert the cartridge into the body or extract it from it, without direct contact with either the cartridge or the retaining ring, smoothly and without excessive effort.

[0006] According to one embodiment, the drive ring covers an annular upper edge of the body, which makes it easily accessible. Preferably, the drive ring has an outer face facing radially outwards not covered by the body. More preferably, the outer face of the drive ring constitutes 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 collar of the drive ring.

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

[0008] Throughout the present description and the claims, the term "slide" means a groove having a bottom, a slot without a bottom or a series of one or more grooves and one or more slots, defining a linear, curved or rectilinear path.

[0009] The arcuate or circular slide(s) may be formed on the body and the slide(s) on the drive ring, or vice versa. It is also possible to envisage one or more slides formed on the body associated with one or more slides formed on the drive ring and one or more slides formed on the drive ring 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 arcuate or circular slide(s), they cannot, under normal use, be extracted by traction parallel to the reference axis.

[0011] Where appropriate, the slide(s) include end stops for the associated slides, in order to limit the amplitude of rotation of the drive ring relative to the body.

[0012] According to one embodiment, the kinematic connection between the body and the retaining ring comprises one or more helical or helical arc slides and one or more sliders capable of sliding in the helical or helical arc slide(s). Preferably, N helical arc slides are provided, arranged at an angle 2 π N from each other around the reference axis, where N is an integer greater than or equal to 3. In practice, to limit friction, we will prefer N=3, which allows the isostatism of the mechanism to be preserved.

[0013] The helical or helical arc slide(s) are preferably formed in the body, and the associated slides on the retaining ring, projecting radially outwards. The slides may consist of guide pins, for example cylindrical pins. According to one embodiment, the body comprises one or more insertion slides allowing the insertion of the slide(s) of the kinematic connection between the body and the retaining ring into the helical or helical arc slide(s) of the kinematic connection between the body and the retaining ring.

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

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

[0016] Preferably, said guide pin(s) are integral with the retaining ring, and pass through one or more bottomless guide slides formed in the drive ring to provide the kinematic connection between the drive ring and the retaining ring, then penetrate into one or more helical slides formed in the body of the pot to provide the kinematic connection 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 which carries the pin(s) and a wall of the body of the pot, 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 an annular retaining shoulder, preferably flat, intended to come into contact with a collar of the removable cartridge.

[0019] According to one embodiment, the retaining ring comprises an annular step intended 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 position of use. This characteristic allows increased control of the position of the different rings within the pot and to guarantee a seal of said pot.

[0020] According to one embodiment, in the position of use, 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 position of use, 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 comprises a closed or open bottom.

[0023] According to one embodiment, the pot further comprises a lid, preferably screwed onto an external thread formed on an external wall of the body. The lid protects the contents of the pot, while ensuring the immobility of the drive ring and the retaining ring. According to one embodiment, the lid in the closed position is intended to bear against a flat annular surface of the removable cartridge when the latter is housed in the pot. The lid then keeps the cartridge, the drive ring, and the 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 in the body, and secured by friction to the retaining ring. This securing 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 exerting sufficient force or torque. Other types of securing can be envisaged if necessary.

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

[0027] Other characteristics and advantages of the invention will emerge from reading the description which follows, with reference to the appended figures. [ Fig. 1 ] There figure 1 illustrates a schematic exploded isometric view of a pot and removable cartridge. Fig. 2 ] There figure 2 illustrates a schematic sectional view of the pot, from the side when the removable cartridge is in a replacement position. Fig. 3 ] There figure 3 illustrates a detailed schematic sectional view of the pot, from the side when the removable cartridge is in a replacement position, following detail O of the figure 2 . [ Fig. 4 ] There figure 4 illustrates a detailed schematic sectional view of the pot, from the side when the removable cartridge is in a use position.

[0028] For clarity, identical or similar elements are identified by identical reference signs throughout the figures. DETAILED DESCRIPTION OF EMBODIMENTS

[0029] On the figures 1 to 4 a pot is illustrated 1 comprising a body 12 whose outer envelope preferably has a symmetry of revolution around a reference axis O. The body 12 has a background 18 preferably closed, preferably flat. The body 12 has a top edge 20 annular, extended vertically towards the bottom by a side wall 22 of the body 12.

[0030] The body 12 is preferably a single piece, and preferably made of a material that can be manufactured in an injection mold, for example HDPE or PP. However, other types of material are also possible, allowing additive manufacturing or machining. The body 12 can thus be made from a noble or natural material, for example metal or wood.

[0031] In a storage or use position, the pot 1 rests on its bottom 18, and the reference axis 0 is oriented vertically, defining an upward direction which will be used later to position the constituent elements of the pot in relation to each other.

[0032] The side wall 22 of the body 12 has a thin portion A forming a surface of revolution around the reference axis 0 and which has the upper edge 20 annular, a thick portion B annular, located vertically below the thin portion A along the reference axis 0, 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 connection between the thick portion B and the bottom 18. This portion is preferably curved, and forms a first flat shoulder 30.

[0033] The side wall 22 of the body 12 has an inner face 22a radially rotated towards the reference axis O. On the inside face 22a open out, at the level of the thick portion B, three slides 24 of helical shape each extending over an angle less than 2 π 3 , and preferably less than π 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 extend over an identical height, measured parallel to the reference axis 0,which is preferably greater than 2mm, for example a height greater than 8mm. They are not through in the sense that they do not radially cross the thick portion B. Each helical slide 24 has two ends respectively forming a lower stop 32, and an upper stop 34.

[0034] On the inside face 22a also open three insertion slides 26 parallel to each other and preferably parallel to the reference axis 0 which each extend vertically from one of the helical slides 24 towards the upper edge 20. The insertion slides 26 are non-crossing on the thick portion B, and where appropriate crossing on a part 26' at the level of the thin portion A.

[0035] The wall 22 of the body 12 has an outer face22b, radially outward facing and opposite the inner face 22a. The outer face 22b has radial hooking projections 28 ( figure 3 ) on the thin portion A at the top edge 20, which each extend in an arc around the reference axis 0 and are separated two by two by the crossing parts 26' 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 non-crossing over their entire height, the hanging projections 28 can be replaced by a single annular hanging projection.

[0036] The thin portion A is configured to fit into an annular cavity 102 of a drive ring100, the annular cavity 102 being delimited by a drive collar 104 of the drive ring 100 ( figure 3 ). The annular cavity 102 has a second hanging projection 106, preferably annular, or where appropriate made up of several portions in an arc of a circle. The annular cavity 102 of the drive ring 100 constitutes an annular slide 108 whose profile is complementary to that of the hanging projections 28, which allows the body to be bound 12 and the drive ring 100 while preserving a single degree of freedom of rotation around the axis O.

[0037] The drive ring 100 has a training wall 110 generally cylindrical in shape, connected by an upper driving edge 112 to the training collar 104.

[0038] The training wall 110 has an outside diameter less than an inside diameter of the inner face 22A of the body 12 in order to insert 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 training wall 110 is preferably without contact with the inner face 22a of the body 12. The radial thickness and axial height of the drive collar wall 104 are such that when the thin portion A is inserted into the annular cavity 102, the training 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.

[0039] The training wall 110features three slotted drive rails 114. The three training slides 114 are equidistant from each other. Each of these three slides 114 is extended parallel to the reference axis 0 of a lower driving edge 116 of the training wall 110 towards the upper drive edge 112 over a distance less than the height of the drive ring 100.

[0040] The pot 1 has a retaining ring 200. The retaining ring 200 is made here in two parts joined to each other, namely a holding body 202 and a support ring 212 at an upper end 204 of the holding body 202.This design allows the choice of two different materials for the support ring and the holding body, and in particular the choice of an elastomer material for the support ring 212. But a single-piece, single-material construction is also possible. The holding body 202 constitutes a retaining wall 206 generally cylindrical, extending axially from the upper end portion 204 up to a ring step 210 radially and axially projecting from the retaining wall 206.

[0041] The cylindrical wall 206 of the holding body 202 has an outside diameter smaller than the inside diameter of the drive wall 110. The ring march 210 has an external diameter smaller than the internal diameter of the continuous portion C of the wall 22 of the body 12and substantially equal to the outside diameter of the drive ring 100. These dimensions allow the retaining ring to be inserted 200 inside the drive ring 100 and the continuous portion C of the wall 22 of the body 12.

[0042] The holding body 202 has three guide slides 208, which are here constituted by three guide pins projecting radially from the cylindrical wall of the holding body 202, equally distributed around the reference axis.

[0043] When assembling 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 reaching the helical slide 24associated. In this position, an annular space is delimited between the inner face 22a of the wall 22 and the holding body 202. This annular space is crossed by the guide pins 208. It is possible to insert the drive ring axially 100 in this annular space, making the three guide slides coincide 208 with the three drive slides 114. When the drive ring 100 approaches a functional position (illustrated in figure 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 100enters the functional position, the second annular projection 106 of the annular cavity 102 and the annular projection 28 of the thin portion A snap together elastically, which allows the drive ring to be restricted 100 to a pivot movement around the reference axis O. The guide pawns 208 of the retaining ring 200 then each cross the training wall 110 of the drive ring 100, via slotted drive rails 114, to penetrate the helical slides 24 of the wall 22 of the body 12.

[0044] The pot 1 is configured to accommodate a removable cartridge 300. The removable cartridge 300 has a tank 304 waterproof whose upper end forms a crown 302 radially protruding.

[0045] The dimensions of the tank 304 and the crown 302 are such that it is possible to insert the removable cartridge 300 in the retaining ring 200, until the crown 302 comes into axial abutment against a flat shoulder 213 of the support ring 212. In particular, it is advantageous to provide that the wall of the tank 304 be slightly truncated, to avoid friction against the retaining ring 200.

[0046] If necessary, it can be provided that the crown 302 has an outside diameter greater than the outside diameter of the holding body 202. In this hypothesis, the crown 302 penetrates at least partially into an annular recess 120 provided at the upper drive edge 112.

[0047] The removable cartridge 300is configured to contain one or more cosmetic products, in liquid, pasty or solid form, such as a powder. The removable cartridge 300 is preferably provided with a seal 308, said operculum 308 being discoidal and preferably rigid. The operculum 308 is configured to seal the removable cartridge 300 and is intended to be removed at least partially on first use, in particular using an opening ring 310.

[0048] The pot 1 preferably has a cover 10, illustrated on the figure 4 . The cover 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.

[0049] When the lid 10 is screwed onto the thread 36 of the body 12,the cover 10 rests against a flat annular bearing surface 118 of the crown 302.

[0050] When the lid 10 is screwed onto the thread 36 and that the cover 10 is supported on the flat annular surface 118, which allows the removable cartridge 300 to be held stationary in the pot 1.

[0051] When the consumer wants to insert a removable cartridge 300 new in the pot 1, he unscrews the lid 10 then rotates the drive ring 100 in a direction of unscrewing S in relation to the body 12 from the pot 1, using his hands for example. The guide slides 208 being positioned in the drive slides 114,the retaining ring is fixed in rotation, but free in axial translation relative to the drive ring. The guide slides 208 being also further inserted into the helical slides 24, the retaining ring follows, relative to the body 12, a helical trajectory around the axis O. As the guide slides 208 advance along the helical path, constrained by the drive ring 100 turned by the consumer, the retaining ring 200 rises, in relation to the body 12, to a replacement position (illustrated in figure 2 )

[0052] In the replacement position, the guide pins 208 butt against the upper stop 34, and / or the annular march 210 abuts against the lower drive edge 116 of the training body 110. The ring march 210in abutment allows the distribution of the force(s) induced by the rotation of the drive ring 100, and partially or totally relieve the guide pins 208 if the user attempts to move beyond the replacement position. The first shoulder 30 from the inner face 22a of the wall 22 of the body 12 and the lower drive edge 116 of the training 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.

[0053] In the replacement position, the consumer can, if necessary, remove a used removable cartridge and insert a removable cartridge 300 new in the retaining ring 200, so that the crown 302 of the removable cartridge 300 rests on the support ring 212or, in the absence of a support ring 212, directly on the upper end 204 of the holding body 202.

[0054] 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 use position (illustrated in figure 4 ).

[0055] In the use position, the guide pins 208 butt against the lower stop 32, and / or the annular march 210 butts against the first shoulder 30 from the inner face 22a of the wall 22 of the body 12. The ring march 210 at the end allows to partially or totally relieve the guide pins 208 if the user attempts to move beyond the operating position. The annular holding shoulder 213is located inside the drive ring 200.

[0056] In addition, the annular march 210, in abutment against the first shoulder 30, also allows the position of use of the removable cartridge to be reached precisely 300, so that the crown 302 of said removable cartridge 300 comes into contact with the cover 10 when storing the product by the user. This position of use therefore allows the removable cartridge 300 to be watertight and not allow the product(s) it contains to leak into the pot 1.

[0057] The body 12, the drive ring 100, the retaining ring 200 and the cover 10 can be made of plastic and / or metal materials. The cover 10, the body 12, the drive ring 100, the retaining ring 200 and the removable cartridge300 are preferably injection molded parts.

[0058] The operculum 308 is preferably made of plastic and / or metallic materials and / or plant material such as paper, cardboard, plant plastics.

[0059] Naturally, the examples shown in the figures and discussed above are given for illustrative purposes only and are not limiting.

[0060] According to a variant not illustrated, the pot 1 has a background 18 closed and flat discoidal whose wall rises towards the thick portion B making a 90° angle. In other words, the continuous portion C forms a cylinder with a circular base.

[0061] The number of slides 24 and guide pin 208 can be any, preferably greater than or equal to three.

[0062] The body 12 from the pot 1 may, if necessary, be bottomless 18,or with an open bottom.

Claims

1. Pot (1) for cosmetic product, comprising a body (12) intended to receive a removable cartridge (300) of cosmetic product, and a mechanism for guiding a movement of the removable cartridge (300) relative to the body (12) between a position of use 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 projecting relative to the body (12) parallel to a reference axis (0), along a helical trajectory around the reference axis (O), characterized in thatthe mechanism comprises a drive ring (100), a retaining ring (200) for the removable cartridge (300), a kinematic connection between the drive ring (100) and the body (12), with a single degree of freedom of movement, in rotation around the reference axis (O), a kinematic connection 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 connection between the retaining ring (200) and the body (12), with a single degree of freedom of movement, of helical movement 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 thatthe 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 (0), for example cylindrical or frustoconical.

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

6. Pot (1) according to any one of the preceding claims, characterized in thatthe kinematic connection between the body (12) and the retaining ring (200) comprises one or more helical or helical arc slides (24) and one or more sliders capable of sliding in the helical or helical arc slide(s) (24).

7. Pot (1) according to claim 6, characterized in that the body (12) comprises one or more insertion slides (26) allowing the insertion of the slide(s) of the kinematic connection between the body (12) and the retaining ring (200) into the helical or helix arc slide(s) (24) of the kinematic connection 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 connection between the drive ring (100) and the retaining ring (200) comprises one or more guide slides (114) and one or more sliders capable of sliding in the guide slide(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 slider among the slider(s) of the kinematic connection between the drive ring (100) and the retaining ring (200) and a slider among the slider(s) of the kinematic connection between the body (12) and the retaining ring (200).

10. Pot (1) according to claim 9, characterized in thatsaid 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 provide the kinematic connection between the drive ring (100) and the retaining ring (200), then penetrate into one or more helical slides (24) formed in the body (12) of the pot (1) to provide the kinematic connection 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 holding wall (206) of the holding 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 thatthe retaining ring (200) comprises 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 portion of the retaining ring (200) is configured to abut against at least a portion of the body (12) in the use position.

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 thatthe removable cartridge (300) contains a cosmetic product and is closed by a cover (308), preferably rigid, preferably discoidal, and preferably equipped with an opening ring (310) or a tab.

Images