FR3158860A1 - POT INTENDED TO RECEIVE A REMOVABLE CARTRIDGE OF COSMETIC PRODUCT - Google Patents

Abstract

A jar (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) 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 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. (Abstract Figure: 1)

Description

POT INTENDED TO RECEIVE A REMOVABLE CARTRIDGE OF COSMETIC PRODUCT TECHNICAL FIELD OF THE INVENTION

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

In document WO 2023/280 429 a pot of the previous 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.

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 whose mechanism allows the cartridge to be replaced with good ergonomics, and preferably without affecting the seal.

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.

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.

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.

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

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.

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.

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 pulling parallel to the reference axis.

Where applicable, 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.

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 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.

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.

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).

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.

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.

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

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.

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 part of the retaining ring is configured to abut against at least part 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.

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.

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.

According to one embodiment, the body comprises a closed or open bottom.

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.

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.

According to one embodiment, the pot further comprises a removable cartridge housed in the body, and secured by friction to the retaining ring. This attachment 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 attachment may be considered if necessary.

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

Other characteristics and advantages of the invention will emerge from reading the description which follows, with reference to the appended figures.

FIG. 1 There FIG. 1 illustrates a schematic exploded isometric view of a pot and removable cartridge.

FIG. 2 There FIG. 2 illustrates a schematic sectional view of the pot, from the side when the removable cartridge is in a replacement position.

FIG. 3 There FIG. 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 FIG. 2 .

FIG. 4 There FIG. 4 illustrates a detailed schematic sectional view of the pot, from the side when the removable cartridge is in a use position.

For clarity, identical or similar elements are identified by identical reference signs throughout the figures.

DETAILED description of embodiments

On the figures1has4a pot is illustrated1comprising a body12whose outer envelope preferably has a symmetry of revolution around a reference axisO. The body12 has a background18 preferably closed, preferably flat. The body12has a top edge20 annular, extended vertically towards the bottom by a side wall22of the body12.

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 manufacturing by machining. The body 12 can thus be manufactured from a noble or natural material, for example metal or wood.

In a storage or use position, the pot 1 rests on its bottom 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.

The side wall22of the body12has a thin portionHAS forming a surface of revolution around the reference axisO and which has the upper edge20 annular, a thick portionBannular, located vertically below the thin portionHAS according to the reference axisO, and whose thickness, measured in the radial direction, is greater than the thickness of the rest of the wall22, and a continuous portionC, of relatively constant thickness, located vertically below the thick portionB, and constituting the link between the thick portionBand the bottom18This portion is preferably curved, and forms a first flat shoulder.30.

The side wall22of the body12has an inner face22 has radially rotated towards the reference axisO. On the inside face22 hasopen, at the level of the thick portionB, three slides24 of helical shape each extending over an angle less than , and preferably less than around the reference axisO. The three helical slides24are preferably equidistant from each other. The three helical slides24have the same helix pitch, and each extend over an identical height, measured parallel to the reference axisO, 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 portionB. Each helical slide24 has two ends respectively forming a lower stop32, and an upper stop34.

On the inside face22 hasalso open three insertion slides26 parallel to each other and preferably parallel to the reference axisOwhich each extend vertically from one of the helical slides24 towards the upper edge20. The insertion slides26 are non-crossing on the thick portionB, and where appropriate crossing on a part26 'at the level of the thin portionHAS.

The wall22of the body12has an outer face22 b, facing radially outwards and opposite the inner face22 has. The outer face22 bhas radial hooking projections28(FIG. 3) on the thin portionHAS at the top edge20, each of which extends in an arc around the reference axisOand are separated two by two by the crossing parts26 'insertion slides26. The upper edge20of the body12, with the annular projection28, forms the thin portionHAS. Alternatively, in an embodiment where the insertion slides26are non-crossing over their entire height, the hanging projections28can be replaced by a single annular hanging projection.

The thin portionHASis configured to fit into an annular cavity102 of a drive ring100, the annular cavity102 being delimited by a drive collar 104 of the drive ring100(FIG. 3). The annular cavity102 has a second hanging projection106, preferably annular, or where appropriate made up of several portions in an arc of a circle. The annular cavity102of the drive ring100 constitutes an annular slide108 whose profile is complementary to that of the hanging projections28, which allows the body to be bound12and the drive ring100while preserving a single degree of freedom of rotation around the axisO.

The drive ring100has a training wall110 generally cylindrical in shape, connected by an upper driving edge112to the training collar 104.

The training wall110 has an outside diameter less than an inside diameter of the inner face22 HASof the body12 in order to insert into the body12. When the thin portionHASof the body12 is inserted into the annular cavity102 of the drive ring 100, the training wall110 is preferably without contact with the inner face22 hasof the body12. The radial thickness and axial height of the drive collar wall104 are such that when the thin portionHASis inserted into the annular cavity102, the training collar104 is preferably flush with the outer face, and at a very short distance from the thick portionB, constituting an extension of the latter.

The training wall110 features three slotted drive rails114. The three drive slides114 are equidistant from each other. Each of these three slides114is extended parallel to the reference axisOof a lower driving edge116of the training wall110 towards the upper drive edge112over a distance less than the height of the drive ring100.

The pot1has a retaining ring200. The retaining ring200 is made here in two pieces joined to each other, namely a holding body202and a support ring212at an upper end204of the holding body202This 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 body202constitutes a retaining wall206generally cylindrical, extending axially from the upper end portion204up to a ring step210radially and axially projecting from the retaining wall206.

The cylindrical wall 206 of the holding body 202 has an outside diameter smaller than the inside diameter of the drive wall 110. The annular step 210 has an outside diameter smaller than the inside diameter of the continuous portion C of the wall 22 of the body 12 and substantially equal to the outside diameter of the drive ring 100. These dimensions make it possible to insert the holding ring 200 inside the drive ring 100 and the continuous portion C of the wall 22 of the body 12 .

The holding body202 has three guide slides208, which here consist of three guide pins projecting radially from the cylindrical wall of the holding body202, equally distributed around the reference axis.

When assembling the pot1, the retaining ring200 is inserted axially into the body12. During this insertion, the guide slides208 are each inserted into a guide rail26 until reaching the spiral slide24associated. In this position, an annular space is delimited between the inner face22 hasof the wall22and the holding body202This annular space is crossed by the guide pins.208. It is possible to insert the drive ring axially100 in this annular space, making the three guide slides coincide208with the three drive slides114. When the drive ring100 approaches a functional position (illustrated inFIG. 2), i.e. the position in which the drive ring100 will be used by a consumer, the upper edge20 of the wall22 of the body12 forming the thin portionHAS enters the annular cavity102 of the drive ring100. When the drive ring100 enters the functional position, the second annular projection106of the annular cavity102and the annular projection28 of the thin portionHAS snap together elastically, which restricts the drive ring100 to a pivot movement around the reference axisO. The guide pins208 of the retaining ring200 then each cross the training wall110 of the drive ring100, via slotted drive rails114, to penetrate the helical slides24of the wall22of the body12.

The pot1is configured to accommodate a removable cartridge300. The removable cartridge300has a tank304waterproof whose upper end forms a crown302 radially protruding.

The dimensions of the tank 304 and the crown 302 are such that it is possible to insert the removable cartridge 300 into 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 is slightly frustoconical, to avoid friction against the retaining ring 200 .

If necessary, it can be provided that the crown302has an outside diameter greater than the outside diameter of the holding body202. In this hypothesis, the crown302 penetrates at least partially into an annular recess120provided at the upper drive edge112.

The removable cartridge300is configured to contain one or more cosmetic products, in liquid, pasty or solid form, such as a powder. The removable cartridge300 is preferably provided with a cover308, said operculum308 being discoidal and preferably rigid. The operculum308is configured to seal the removable cartridge300and is intended to be removed at least partially on first use, in particular using an opening ring310.

The pot1 preferably has a cover10, illustrated on theFIG. 4. The cover10 is configured to be screwed onto a thread36of the body12. The thread36is formed on the outer face of the wall22 of the body12.

When the lid10is screwed onto the thread36of the body12, the cover10 rests against a flat annular bearing surface118of the crown302.

When the lid10is screwed onto the thread36 and that the cover10is supported on the flat annular surface118, which allows the removable cartridge300to be kept still in the pot1 .

When the consumer wants to insert a removable cartridge300new in the pot1, he unscrews the lid10then rotates the drive ring100 in a direction of unscrewingSin relation to the body12 from the pot 1, using his hands for example. The guide slides208being positioned in the drive slides114, the retaining ring is fixed in rotation, but free in axial translation relative to the drive ring. The guide slides208being also further inserted into the helical slides24, the retaining ring follows, relative to the body12, a helical trajectory around the axisO. As the guide slides208advance along the helical path, constrained by the drive ring100 turned by the consumer, the retaining ring200 rises, in relation to the body12, to a replacement position (illustrated inFIG. 2)

In the replacement position, the guide pins208butt against the upper stop34, and/or the annular march210 butts against the lower drive edge116 of the training body110. The ring march210 in abutment allows the distribution of the force(s) induced by the rotation of the drive ring100, and partially or totally relieve the guide pins208if the user attempts to move beyond the replacement position. The first shoulder30 from the inner face22 hasof the wall22 of the body12 and the lower drive edge116 of the training body110 of the drive ring100 are therefore the limits of the vertical translation of the retaining ring200relative to the drive ring100.

In the replacement position, the consumer can, if necessary, extract 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 .

The consumer can then rotate the drive ring100 in a screwing direction opposite to the unscrewing directionSin order to lower the retaining ring200 to the use position (illustrated inFIG. 4).

In the use position, the guide pins208butt against the lower stop32, and/or the annular march210 butts against the first shoulder30 from the inner face22 hasof the wall22 of the body12. The ring march210 at the end allows to partially or totally relieve the guide pins208if the user attempts to move beyond the operating position. The annular holding shoulder213is located inside the drive ring200.

In addition, the annular march210, abutting against the first shoulder30, also allows you to precisely reach the position of use of the removable cartridge300, so that the crown302 of said removable cartridge300comes into contact with the cover10when storing the product by the user. This position of use therefore allows the removable cartridge300to be watertight and not allow the product(s) it contains to leak into the pot1.

The body12, the drive ring100, the retaining ring200and the cover10 can be made of plastic and/or metal materials. The cover10, the body12, the drive ring100, the retaining ring200and the removable cartridge300are preferably injection molded parts.

The operculum308 is preferably made of plastic and/or metallic materials and/or plant material such as paper, cardboard, plant plastics.

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

According to a variant not illustrated, the pot 1 has a closed and flat discoidal bottom 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 .

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

The body 12 of the pot 1 may, if necessary, be without a bottom 18 , or with an open bottom.

Claims (16)

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 (O), along a helical trajectory around the reference axis (O), characterized in that 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 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 holding ring (200) and the body (12), with a single degree of freedom of movement, of helical movement along the helical trajectory. Pot (1) according to claim 1, characterized in that the drive ring (100) covers an annular upper edge (20) of the body (12). 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). 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. 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. Pot (1) according to any one of the preceding claims, characterized in that the 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). 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 helical arc slide(s) (24) of the kinematic connection between the body (12) and the retaining ring (200). 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 slides capable of sliding in the guide slide(s) (114). 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). Pot (1) according to claim 9, characterized in that the said 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). 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. Pot (1) according to any one of the preceding claims, characterized in that the 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). Pot (1) according to claim 12, characterized in that in the position of use, the annular holding shoulder (213) of the holding ring (200) is located inside the drive ring (100). Pot (1) according to any one of the preceding claims, characterized in that at least part of the retaining ring (200) is configured to abut against at least part of the body (12) in the position of use. 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). Pot (1) according to claim 15, characterized in that the 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.