Cosmetic product dispenser jar with anti-residual effect

Abstract

The invention provides a cosmetic product dispenser jar (1) comprising: - a body (6) defining a variable-volume chamber (11) for storing the product; - a piston (7) mounted for translational movement within the body (6); - a rotating actuating element (5) mounted for rotational movement relative to the body (6); - a drive system (8) comprising a threaded rod (81) passing through the body (6), the piston (7) being screwed onto the rod (81) and moving in translation along the X-axis within the body (6) by the rotation of the rod (81) via the actuating element (5), the drive system (8) having a dispensing orifice (80). The actuating element (5) is located at the top of the jar (1) and has a curved upper wall (52) for receiving the product. Figure 4 (for the abstract)

Description

Title of the invention: Cosmetic product dispenser jar with anti-residual residue means. Technical field of the invention

[0001] The invention relates to a cosmetic product dispenser jar. This jar includes product dispensing means for delivering identical doses of product with each actuation of an actuating element. The actuating element is designed so that actuation is performed via a simple and easy gesture for the user.

[0002] The invention also relates to a method of dispensing a cosmetic product from such a jar.

[0003] The cosmetic product is fluid, of the cream type. Technical background

[0004] We know of cosmetic product dispenser pots, which allow for the delivery of doses of fluid product.

[0005] In general, these pots are equipped with a variable volume chamber containing the product. A piston, actuated by a mechanical system, compresses the chamber to force the release of a dose of product through a distribution orifice.

[0006] One of the disadvantages is that the dose distributed differs from one intake to another depending on the actuation movement operated by the user on the mechanical system.

[0007] Moreover, the actuation movement sometimes requires gestures that are not natural, or even awkward.

[0008] Finally, some product may continue to come out of the orifice after the actuation is complete, due to a phenomenon known as "residual" effect. This excess product, dispensed after the user has already taken their dose, stagnates around the dispensing orifice and can thus be contaminated by bacteria present in the environment or that were on the user's finger. Summary of the invention

[0009] The present invention aims to overcome the various disadvantages stated above, by means of a cosmetic product dispenser pot, equipped with product distribution means, which are easily operated by the user with improved and simplified gestures, and which allows the delivery of an identical dose of product repeatedly, without residual effect, and while preserving the intrinsic properties of the product contained inside the pot by preventing any contact between the product and the user's fingers.

[0010] This pot must be simple to manufacture, refillable, and designed with a view to easy recyclability.

[0011] This goal is achieved by means of a cosmetic product dispenser pot having a central X-axis and comprising:

[0012] - a hollow body partially defining a variable volume chamber for storing product;

[0013] - a piston mounted to move in translation inside the body and forming a bottom movable chamber to vary its volume

[0014] - a rotary actuation element, mounted to rotate freely relative to the body;

[0015] - a drive system comprising a threaded rod extending along the X-axis and passing through the body, the piston being screwed onto the rod and moving in translation along the X axis within the body by the rotation of the rod via the actuating element, the drive system having a product supply conduit opening onto a distribution orifice defined by a free end of the drive system.

[0016] The pot is characterized primarily in that the actuation element is located in the upper part of the pot and has a curved upper wall for receiving the product.

[0017] The main idea of ​​this invention is to provide a pot with the actuation element located at the top of the pot, and no longer at the bottom of the pot as was customary in the prior art.

[0018] This arrangement improves the dispensing process. With one hand, the user holds the body of the jar, and with the other hand, they turn the rotating dispensing mechanism and take the cream. Thus, the hand used to turn the dispensing mechanism and the hand used to take the product are the same, the other hand remaining in grip of the jar during both the operation and the retrieval of the product.

[0019] In the prior art, it was necessary to turn the actuating element at the bottom of the pot, then raise the hand to retrieve the dose of product that came out at the top of the pot.

[0020] In the invention, the actuation element has two functions, that of actuation of the distribution, and that of recovery of a dose of product.

[0021] The upper wall of the actuating element is slightly curved inwards towards the body, so as to define a reservoir for retaining a dose of liquid product, which extends all around the dispensing orifice. This reservoir shape allows the product to be held without overflowing from the upper wall. It also allows the user to more easily retrieve their dose of product with their finger by scraping this reservoir.

[0022] According to the different embodiments of the invention, which may be considered together or separately: The drive system is mounted as a fixed unit with the actuating element to rotate with it. the pot has a cross-section, perpendicular to the X axis, of oval or oblong shape. The pot is activated to dispense a dose of product by rotating the actuating element through 180°. The pot also includes a base into which the body is inserted, and a retaining ring for holding the body in position in the base, the actuation element being mounted on the ring. The body, piston, and drive system form a removable refill. The body, piston, drive system, base, ring and actuating element are designed from the same material. the pot includes anti-residual means consisting of a cam and cam follower system operating an axial translation of the drive system relative to the body and the actuating element. The cam and cam follower system consists of a cooperation between a cam formed by a ramp provided on the body and having sections with variable slope, and a cam follower formed by at least one protruding pin of the drive system and sliding on the ramp during the rotation of the drive system via the actuation element. With each rotational actuation of the actuation element, the drive system moves in translation relative to the body from an initial position, where the free end of the drive system is flush with said upper wall, to a raised position, where the free end of the drive system protrudes from said upper wall, as long as the pawl slides on a ramp section having an upward slope, and then from the raised position back to the initial position when the pawl slides on an adjacent ramp section having a downward slope. The drive system includes spring means forcing it to return to its initial position after each actuation. These spring means consist of a flexible plate extending radially from the rod and being axially butted against a radial shoulder of the body. The stem is hollow, and has openings for the passage of the product from the chamber to the product supply conduit to the distribution orifice. - the pot also includes a sealing lid for the pot mounted on the ring and having means for locking the actuating element against rotation.

[0023] The invention also relates to a method for dispensing a cosmetic product from a jar as described above, comprising the following steps:

[0024] - rotate the actuating element relative to the body over an angular portion predetermined less than half a turn, which simultaneously results in: • on the one hand a translation of the piston relative to the drive system within the body towards the actuating element, which results in a reduction of the chamber volume with compression, which results in the escape of a dose of product through the distribution orifice; • on the other hand, a translation of the entire drive system and piston from an initial position to a raised position;

[0025] - continue to rotate the actuating element relative to the body until it has completed the U-turn, which simultaneously results in: • on the one hand a translation of the piston relative to the drive system8 in the direction of the actuating element, which causes the end of the dose of product to escape through the distribution orifice; • on the other hand, a translation of the entire drive system and piston from its raised position to its initial position away from the actuation element, which leads to an increase in the volume of the chamber with decompression to stop the distribution of the product. Brief description of the figures

[0026] Other features and advantages of the invention will become apparent upon reading the detailed description that follows, for an understanding of which reference should be made to the accompanying drawings in which:

[0027] Fig. 1 is a general perspective view of a pot according to the invention, closed with its lid.

[0028] Fig. 2 is a general perspective view of the pot without its lid.

[0029] Fig. 3 is an exploded view of the pot.

[0030] Fig. 4 is a cross-sectional view of the pot according to Fig. 1.

[0031] Figure 5 shows several perspective views of the drive system according to the invention;

[0032] The [Fig.6] is a perspective view of the actuation element;

[0033] Fig. 7 is a perspective view of the refill surmounted by the ring;

[0034] Fig. 8 is a perspective view of the refill body. Detailed description of the invention

[0035] In the following description, elements having an identical structure or analogous functions will be designated by the same references.

[0036] By convention, the "axial" direction corresponds to that of principal extension of the receptacle, illustrated by the X axis on [Fig.1], and the "radial" direction is orthogonal to the axial direction.

[0037] In the detailed description of the figures that follows, the terms "upper" and "lower" or "top" and "bottom" will be used without limitation with reference to the axial direction. Thus, the term "upper" refers to a part located near a lid of the pot 1, and the term "lower" refers to a part located near a base of the pot 1.

[0038] Similarly, the terms "outside or external" and "inside or internal" are used with reference to the radial direction, an outside element being radially further away from the X axis than an inside element.

[0039] The pot 1 according to the invention consists of several parts mounted one inside the other along the mounting axis X, as illustrated by figures 1 to 3.

[0040] In this case, the jar 1 consists of a base 2 in which is mounted a refill 10 which conditions the cosmetic product, on which is mounted a ring 4 on which is mounted a rotating actuation element 5, which is itself capped with a lid 3. The rotating actuation element 5 is thus found in the upper part of the jar 1, at the level of the lid 3.

[0041] Inside the refill 10 are a piston 7 and a drive system 8.

[0042] All the parts mentioned, with the exception of the drive system 8, have an oval or oblong shape in the cross-section, along a plane perpendicular to the X axis. Therefore, the different parts are indexed to each other so that the oval or oblong shapes are well aligned axially.

[0043] The cosmetic product is packaged in refill 10.

[0044] Preferably, the cosmetic product is fluid, of the cream or foundation type.

[0045] The cosmetic product has a viscosity that allows it to be ejected via a distribution orifice 80 located in the upper part of the jar 1.

[0046] More specifically, as illustrated in [Fig.4], the cosmetic product is packaged in a chamber 11 of the refill 10.

[0047] The refill 10 is mainly made up of a hollow body 6 through which the drive system 8 passes, and inside which a piston 7 is mounted.

[0048] The hollow body 6 has a peripheral wall 61 surmounted by a three-tiered neck 64.

[0049] The body 6 also has a collar 62 extending radially outwards, at the junction between the peripheral wall 61 and the neck 64. This collar 62 is able to cooperate with an upper rim 23 of the base 2 so that the refill 10 can be suspended inside the base 2. Indeed, the collar 62 rests on the upper rim 23 of the base 2 at the end of assembly.

[0050] In the present case, the base 2 has a peripheral wall 21 and a bottom 26.

[0051] The drive system 8 has a cylindrical rod 81 extending over its entire the height of the body 6. This rod 81 has a threaded part, then a hollow part 83 with openings 84 leading into the chamber 11, and extends into a head 86 defining a conduit 89 for supplying the product to a distribution orifice 80 defined by the upper end of the head 86.

[0052] The drive system 8 is suspended inside the body 6. More particularly, the head 86 of the drive system 8 has at least two pins 87, diametrically opposed, which rest on an internal rib 65 provided for this purpose in the neck 64 of the body 6.

[0053] The piston 7 is mounted in the lower part of the body 6, and has a contour conforming to the inner shape of the peripheral wall 61 of the body 6 so that there is contact between the piston 7 and the body 6, at least on a sealing line.

[0054] The piston 7 has a central orifice provided with an internal thread 71 suitable for cooperating with an external thread 82 of the threaded part of the rod 81. Thus the piston 7 is placed inside the body 6 by screwing onto the rod 81 through the underside of the refill 10.

[0055] The piston 7 forms the bottom of the refill 10.

[0056] The piston 7 is mobile in axial translation inside the body 6. Indeed, each time the drive system 8 rotates, i.e. the rod 81 rotates in the manner of a worm screw, the piston 7 is driven axially by cooperation of the internal threads 71 ​​and external threads 82.

[0057] The chamber 11 storing the product is defined by the peripheral wall 61 of the body 6, by the piston 7, by the three stages of the neck 64 of the body 6, and by the rod 81 of the drive system 8.

[0058] This chamber 11 has a variable volume between a configuration where the volume is maximum, as illustrated in [Fig.4], when the piston 7 is in the lower position inside the body 6, and a configuration where the volume is minimum, when the piston 7 is in the upper position in the body 6 and comes against the first stage 69 of the neck 64 of the body 6.

[0059] When piston 7 is in the raised position, it means that all the cosmetic product has been dispensed, and refill 10 is empty. It is then possible to change refill 10 from pot 1 and put a new one in base 2.

[0060] With each actuation, the piston 7 rises slightly in the body 6, so as to decrease the volume of the chamber 11 and create a compression of the product, to force the product to pass through the openings 84 of the hollow part of the rod 81 and then through the product supply conduit 89 to the distribution orifice 80.

[0061] When the product exits the dispensing orifice 80, it flows over an upper wall 52 of the actuating element 5. This upper wall 52 is curved towards the inside of the container 1, so as to form a product retention basin. This allows the user to easily retrieve the product without it overflowing from the actuating element 5.

[0062] This actuating element 5 is mounted securely to the drive system 8 by means of rotational locking means. The actuating element 5 is, however, axially free with respect to the drive system 8.

[0063] These means of locking against rotation consist of a first circular ring 58, as illustrated in [Fig.6], extending axially from the upper wall 52 of the actuating element 5, and having axial ribs 59, this first ring 58 with its ribs 59 being able to fit inside a correspondingly shaped housing 88 provided inside the head 86 of the drive system 8.

[0064] This housing is particularly visible in figures 7, 5a, 5c.

[0065] In this case, the housing 88 consists of an annular space 88b surrounding the product supply conduit 89, and extended by axial grooves 88a. The annular space 88b accommodates the first ring 58, while the grooves 88a accommodate the ribs 59.

[0066] Thus, when the actuating element 5 rotates, it drives the head 86 of the drive system 8 in rotation thanks to the ribs 59 locked in the grooves 88a.

[0067] In the illustrated example, the external surface of the first ring 58 has four regularly spaced axial ribs. In this case, the four ribs are arranged at 90° to each other. The head 86 of the drive system 8 thus has four axial grooves distributed accordingly around the housing 88, at 90° to each other.

[0068] The actuating element 5 is also axially locked relative to the base 2, thanks to an intermediate piece, in this case the ring 4.

[0069] This ring 4 is fixed to the base 2 by elastic interlocking.

[0070] Any other means of fastening may be envisaged within the framework of the present invention.

[0071] This elastic interlocking is achieved at the level of an oval or oblong peripheral wall 41 of the ring 4 which cooperates with the oval or oblong upper periphery 23 of base 2. Due to their oval or oblong shapes, ring 4 and base 2 are automatically blocked from rotating relative to each other.

[0072] The ring 4 also has a transverse upper wall 47 surmounted by a collar 46 defining an opening into which the collar 64 of the body 6 and the head 86 of the drive system 8 can be inserted.

[0073] The neck 46 of the ring 4 is provided with means for axial fixation with the actuating element 5. In this case, the axial locking means consist of an external rib 45 of the neck 46 of the ring 4 adapted to fit inside a groove 56 provided for this purpose in a second circular ring 50 of the actuating element 5. More precisely, this second circular ring 50 extends axially from the upper wall 52 of the actuating element 5, and has a radius greater than the first circular ring 58. In this way, the second circular ring 50 surrounds the first circular ring 58.

[0074] Conversely, the axial locking means could very well correspond to a rib extending from an inner wall of the second circular ring 50 and adapted to fit inside a groove provided for this purpose in the outer wall of the neck 46 of the ring 4.

[0075] Optionally, the second circular ring 50 is provided with axial slots 57 so as to make this second circular ring 50 more flexible during its elastic interlocking with the neck 46 of the ring 4.

[0076] Preferably, the second circular ring 50 has two diametrically opposed axial slots 57.

[0077] By the elastic interlocking of the actuating element 5 on the base 2, followed by the elastic interlocking of the base 2 on the ring 4, the actuating element 5 is found to be axially locked with respect to the base 2.

[0078] The ring 4 also has means for axially locking the refill 10 relative to the base 2. These axial locking means consist of a shoulder 42 formed on the peripheral wall 41 of the ring 4, adapted to rest on a shoulder 60 of the collar 62 of the body 6, so as to exert axial pressure on the refill 10 when the ring 4 is mounted on the base 2. Thus the collar 62 is clamped between the ring 4 and the base 2, and the body 6 of the refill 10 can no longer move axially relative to the base 2 or relative to the ring 4.

[0079] The actuating element 5 is indeed axially blocked relative to the base 2, but is mobile in rotation relative to the base 2, and also relative to the ring 4. Indeed, the objective is that the user can hold the base 2 in one hand, and rotate the actuating element 5 in the other hand.

[0080] The annular groove 56 and the annular rib 45 allow axial locking, but leave a degree of freedom with respect to rotation.

[0081] Given the oblong or oval shape of the pot 1, it is intended that the user will turn the actuating element 5 half a turn to deliver a dose of product, so that the actuating element 5 is correctly repositioned on the body 6, with an alignment of its oval / oblong shape with the oval / oblong shape of the base 2.

[0082] The pot 1 is also equipped with means for positioning the actuating element 5 relative to the ring 4, and therefore a fortiori relative to the base 2.

[0083] These positioning means consist of two projections 55 extending from an internal surface of a third circular ring 54 extending axially from the upper wall 52 of the actuating element 5, and adapted to cooperate with two notches 44 provided for this purpose in a circular overthickness 43 of the neck 46 of the ring 4.

[0084] This third ring 54 has a radius greater than the second circular ring 50. In this way, the third ring 54 surrounds the second ring 50.

[0085] The two projections 55 are diametrically opposed at the level of the third circular ring 54.

[0086] Similarly, the two notches 44 are diametrically opposed at the level of the circular overthickness 43.

[0087] When each protrusion 55 enters each notch 44, the user feels the passage of a notch, like a hard point, which means that he has reached the end of the rotation for the delivery of a dose of product.

[0088] The two projections 55 are arranged on an axis of symmetry of the actuating element 5, perpendicular to the X axis, in the direction of the length of the oblong or oval shape of the actuating element 5.

[0089] Similarly, the two notches 44 are arranged on an axis of symmetry of the ring 4, perpendicular to the X axis, in the direction of the length of the oblong oval shape of the ring 4.

[0090] Thus, at each rotation of 180°, the projections 55 find the notches 44, and the actuating element 5 is again aligned with the ring 4 and the base 2.

[0091] The thread of the rod 81 of the drive system 8 is dimensioned so that, for each half-turn of the actuating element 5, the piston 7 travels axially, delivering a precise dose of product. In this way, with each actuation, the same quantity of product exits through the dispensing orifice 80. Therefore, there is no variation in the quantity of product dispensed from one dose to the next.

[0092] In the illustrated example, the projections 55 of the third circular ring 54 are offset by 90° with respect to the slots 57 of the second circular ring 50.

[0093] When the lid 3 is placed in position on the pot 1, it is no longer possible to access or rotate the actuating element 5. This is because the lid 3 has means for preventing the rotation of the actuating element 5.

[0094] These means of blocking against rotation consist of an extension of the peripheral wall 31 of the cover 3, which comes to cover entirely the peripheral wall 51 of the actuating element 5, as well as a part of the peripheral wall 41 of the ring 4. Thus, when the cover 3 is put in place on the ring 4, the user no longer has access to the actuating element 5 and can no longer turn the latter.

[0095] Advantageously, the pot 1 has anti-residual flow means designed to prevent product from continuing to flow out of the dispensing orifice 80 once the actuating element 5 has completed its half-turn. This phenomenon frequently occurs in fluid product dispensers, because the product is compressed and carried into the conduit 89, and tends to continue flowing out of the dispensing orifice 80 due to the inertia of its movement and the viscosity of the product.

[0096] These anti-residual means are intended to create a release in chamber 11 in order to reduce the pressure in chamber 11, and to stop the distribution of product completely.

[0097] This expansion is achieved by a descent of the entire drive system 8 and piston 7 inside the body 6, so as to increase the volume inside the chamber 11.

[0098] This release must take place at the end of the actuation, that is to say just before the actuation element 5 has completed its half-turn.

[0099] To do this, the pins 87 of the head 86 of the drive system 8 are used, which rest on the internal rib 65 of the neck of the body 6. Advantageously, the internal rib 65 consists of a ramp 65 with sections of variable slope, acting as a cam, while the pins 87 act as cam followers.

[0100] The first section of the ramp 65a has an upward slope, i.e. oriented towards the upper part of the pot 1, over a first angular section of at least 90°. Thus, the drive system 8 and its associated piston 7 will rise axially relative to the body 6 during the first phase of actuation of the actuating element 5, i.e. over a first angular stroke of at least 90°, corresponding to said first angular section.

[0101] The second ramp section 65b, adjacent to the first ramp section, has a downward slope, i.e., oriented towards the bottom 26 of the pot 1, on a second angular section allowing it to reach a total of 180°. Thus, the drive system 8 and its associated piston 7 will descend axially relative to the body 6 during the second phase of actuation of the actuating element 5, i.e., on a second angular stroke which allows the half-turn of the actuation element 5 to be completed.

[0102] The descent of the drive system 8 and its piston 7 de facto results in an increase in the volume of the chamber 11, even if the piston 7 has still moved axially upwards relative to the drive system 8 following the end of the rotation of the actuating element 5.

[0103] Thus, with each rotary actuation of the actuating element 5, the drive system 8 and the piston 7 move in translation relative to the body 6:

[0104] - from an initial position, where the free end of the head 86 of the system the drive 8, i.e. the free end of the product supply conduit 89, is flush with the upper wall 52 of the actuating element 5,

[0105] - towards a raised position, where the free end of the drive system 8 protrudes from the upper wall 52, as long as the pawns 87 slide on a section of ramp having an upward slope;

[0106] - then again towards the initial position, when the pawns 87 slide along a segment of an adjacent ramp having a downward slope.

[0107] Thus the rib 65 is provided with a first ascending ramp section 65a, followed by a second descending ramp section 65b, these first two sections corresponding to the rotation of a half turn of the actuating element 5, then is provided with a third ascending ramp section 65a followed by a fourth descending ramp section 65b, these last two sections corresponding to the rotation of another half turn of the actuating element 5. The rib 65 is thus provided in total with four ramp sections 65a, 65b.

[0108] This sudden increase in volume has the effect of decompressing chamber 11 and stopping the pressure of the product in the vicinity of the distribution orifice 80, thus preventing any residual effect.

[0109] No excess product overflows from the orifice 80 after actuation. The dispensed dose of product can be collected by the user after actuation by running their finger along the upper wall 52 of the body 6. After collecting this dose of product, the upper wall 52 of the actuation element 5 remains clean all around the orifice 80 because no more product is coming out. This reduces the risk of contamination of the product inside the container 1.

[0110] Preferably, the product supply conduit 89 opens at an opening 53 in the actuation element 5. The opening 53 is dimensioned so as to be as close as possible to the conduit 89, to prevent product from getting between the conduit and the first ring 58 of the actuation element 5.

[0111] Advantageously, the drive system 8 includes spring means forcing it to return to the initial position after each actuation.

[0112] These spring means consist of a flexible plate 85 extending radially from the rod 81 and coming into axial contact against a radial shoulder 67 of the body 6.

[0113] More specifically, this radial shoulder 67 of the body 6 is formed by the second stage of the neck 64.

[0114] For example, the plate 85 has a relatively thin thickness allowing it to be more supple and flexible.

[0115] For example, the plate 85 is perforated to make it more flexible, as illustrated in particular in [Fig.5].

[0116] According to the invention, this plate 85 is abutted against the radial shoulder 67, without being deformed when there is no actuation. During actuation, the rod 81 and the head 86 of the drive system 8 move over a small upward axial stroke, while the plate 85 remains at a constant axial height, abutted against the radial shoulder 67, and deforms. At the end of the actuation, the stress exerted by the plate 85 on the stop 67 is gradually released and causes the rod 81 and head 86 assembly to descend.

[0117] Preferably, the body 6, piston 7, drive system 8, base 2, ring 4, and actuating element 5 are made of the same plastic material. The lid 3 is also preferably made of the same plastic material. This saves the user from having to sort the different parts of their container 1, according to the materials, in order to dispose of it in different recycling bins.

[0118] The plastic material may be selected from polypropylene (PP), recycled polypropylene (R-PP), polyethylene terephthalate (PET), recycled polyethylene terephthalate (R-PET), a thermoplastic elastomer (TPE), polyethylene (PE), such as low-density polyethylene (LDPE) and / or high-density polyethylene (HDPE), a composite material, a post-consumer recycled material (PCR and / or a similar material). Preferably, it is recycled or non-recycled polypropylene and / or polyethylene terephthalate.

[0119] Thus, advantageously, the body 6, the piston 7, the drive system 8, the base 2, the ring 4, the actuating element 5 and the cover 3 are made of plastic material selected from polypropylene and / or polyethylene terephthalate.

[0120] The use of plastics, in particular similar plastics, for the entire container 1 facilitates recycling. In particular, polypropylene and polyethylene terephthalate are two plastics whose recycling cycle is well known.

[0121] Pot 1 can be produced by 3D printing.

[0122] In particular, the body 6, the piston 7, the drive system 8, the base 2, the ring 4, the actuation element 5 and the cover 3 can be made by 3D printing. Such a printing process makes it possible to create these pieces very freely, featuring patterns and shapes that contribute to the aesthetic appearance of pot 1.

[0123] To use jar 1 and dispense a dose of cosmetic product, the user must:

[0124] - rotate the actuating element 5 relative to the body 6 over an angular portion predetermined less than half a turn, which simultaneously results in: • on the one hand a translation of the piston 7 relative to the drive system 8 within the body 6 in the direction of the actuating element 5, which results in a reduction of the volume of the chamber 11 with a compression, which results in the escape of a dose of product through the distribution orifice 80; • on the other hand, a translation of the entire drive system 8 and piston 7 from an initial position to a raised position;

[0125] - continue to rotate the actuating element 5 relative to the body 6 until this that he has completed the U-turn, which simultaneously entails: • on the one hand a translation of the piston 7 relative to the drive system 8 in the direction of the actuating element 5, which causes the end of the dose of product to escape through the distribution orifice 80; • on the other hand, a translation of the entire drive system 8 and piston 7 from its raised position to its initial position away from the actuation element 5, which results in an increase in the volume of the chamber 11 with decompression to stop the distribution of product.

[0126] Generally, whether the pot 1 incorporates the anti-residual residue system or not, the user can reduce the dose of product dispensed by turning the actuating element 5 clockwise through an angular sector of less than 180°, for example, a quarter turn, and then turning the actuating element 5 counterclockwise to return it to its starting position. Thus, only half a dose of product will have been dispensed.

[0127] After removing the lid 3 from the pot 1, in order to easily remove the refill 10 from the pot 1 when the refill 10 is empty, the base 2 optionally has two raised gripping areas 25 which the user can press to locally deform the base 2, in order to release the ring 4 from the base 2.

[0128] These attachment zones 25 are located in the upper part of the peripheral wall 21 of the base 2, and are diametrically opposed, and situated on the long sides of the base 2.

[0129] Thus, with one hand, he presses these two areas 25 together, thereby releasing the joint formed by the ring 4. The user can then easily remove the ring 4 from the base 2, and by removing the ring 4 it carries with it the actuation element 5 which is axially attached to ring 4.

[0130] The user can thus have access to the collar 64 of the body 6 and grip it so as to remove the refill 10 from the base 2.

[0131] It can thus insert a new refill 10 inside the base 2, then reuse the sub-assembly formed by the ring 4 and the actuation element 5 to mount them on the new refill 10 while fitting the ring 4 onto the base 2. The pot 1 is thus refilled and ready to be reused.

[0132] It should be noted that, even without the gripping areas, the user can press the base 2 in the same place, to deform it, and release the ring 4.

[0133] When not in use, the user closes the pot 1 with the lid 3.

[0134] Preferably, the cover 3 conforms to the shape of the actuation element 5 so as to be able to close the distribution orifice tightly.

[0135] Each refill 10 is fitted with a cap to seal the dispensing opening airtight before first use. The user removes this cap after inserting the refill 10 into the base 2.

[0136] The configurations shown in the cited figures are only possible examples, by no means limiting, of the invention which on the contrary encompasses variants of forms and designs within the reach of a person skilled in the art.

Claims

Demands

1. A cosmetic product dispenser pot (1) having a central X axis and comprising: - a hollow body (6) partially defining a chamber (11) with variable volume for storing product; - a piston (7) mounted movable in translation inside the body (6) and forming a movable bottom of the chamber (11) to vary its volume, - a rotary actuation element (5), mounted movable in rotation relative to the body (6); - a drive system (8) comprising a threaded rod (81) extending along the X axis and passing through the body (6), the piston (7) being screwed onto the rod (81) and moving in translation along the X axis within the body (6) by the rotation of the rod (81) via the actuating element (5), the drive system (8) having a product supply conduit (89) opening onto a distribution orifice (80) defined by a free end of the drive system (8);the actuation element (5) being disposed in the upper part of the pot (1) and having a curved upper wall (52) for receiving the product, characterized in that the pot has a cross-section, perpendicular to the axis X, of oval or oblong shape, the actuation of the pot (1) for the distribution of a dose of product being done by rotation of the actuation element (5) by 180°.;

2. Pot (1) according to the preceding claim, characterized in that the drive system (8) is mounted integrally with the actuating element (5) to rotate with it.

3. Pot (1) according to any one of the preceding claims, characterized in that it also comprises a base (2) into which said body (6) is inserted, and a ring (4) for holding the body (6) in position in the base (2), the actuating element (5) being mounted on the ring (4).

4. Pot (1) according to any one of the preceding claims, characterized in that the body (6), the piston (7), and the drive system (8) form a removable refill (10).

5. Pot (1) according to any one of the preceding claims, characterized in that the body (6), the piston (7), the drive system (8), the base (2), the ring (4) and the actuating element (5) are made of the same material.

6. Pot (1) according to any one of the preceding claims, characterized in that it comprises anti-residual means consisting of a cam and cam follower system operating an axial translation of the drive system (8) relative to the body (6) and the actuating element (5).

7. Pot (1) according to the preceding claim, characterized in that the cam and cam follower system consists of a cooperation between a cam formed by a ramp (65) provided on the body (6) and having sections with variable slope, and a cam follower formed by at least one pin (87) projecting from the drive system (8) and sliding on the ramp (65) during the rotation of the drive system (8) via the actuating element (5).

8. Pot (1) according to the preceding claim, characterized in that, at each rotary actuation of the actuating element (5), the drive system (8) moves in translation relative to the body (6) from an initial position, where the free end of the drive system (8) is flush with said upper wall (52), to a raised position, where the free end of the drive system (8) protrudes from said upper wall (52), as long as the pin (87) slides on a ramp section (65) having an upward slope, and then from the raised position to the initial position when the pin (87) slides on an adjacent ramp section (65) having a downward slope.

9. Pot (1) according to any one of the preceding claims, characterized in that the drive system (8) includes spring means forcing it to return to the initial position after each actuation.

10. Pot (1) according to the preceding claim, characterized in that these spring means consist of a flexible plate (85) extending radially from the rod (81) and being axially abutted against a radial shoulder of the body (6).

11. Pot (1) according to any one of the preceding claims, characterized in that the stem (81) is hollow, and has openings (84) for the passage of the product from the chamber (11) to the product supply conduit (89) to the distribution orifice (80).

12.

13. Pot (1) according to one of the preceding claims, when it depends on claim 3, characterized in that it also comprises a lid (3) for sealing the pot (1) mounted on the ring (4) and having means for blocking the rotation of the actuating element (5). A method for dispensing a cosmetic product from a jar (1) according to claim 7, comprising the following steps: - rotate the actuating element (5) relative to the body (6) over a predetermined angular portion less than half a turn, which simultaneously causes: • on the one hand a translation of the piston (7) relative to the drive system (8) within the body (6) in the direction of the actuating element (5), which results in a reduction of the volume of the chamber (11) with a compression, which results in the escape of a dose of product through the distribution orifice (80); • on the other hand, a translation of the entire drive system (8) and piston (7) from an initial position to a raised position; - continue rotating the actuating element (5) relative to the body (6) until it has completed the half-turn, which simultaneously results in: • on the one hand a translation of the piston (7) relative to the drive system (8) in the direction of the actuating element (5), which causes the end of the dose of product to escape through the distribution orifice (80); • on the other hand, a translation of the entire drive system (8) and piston (7) from its raised position to its initial position away from the actuating element (5), which results in an increase in the volume of the chamber (11) with decompression to stop the distribution of the product.