FR3087324A1 - DISPENSING HEAD OF A COSMETIC PRODUCT, ASSOCIATED PACKAGING AND DISPENSING DEVICE AND METHOD - Google Patents

Abstract

The invention relates to a dispensing head (14) for a cosmetic product suitable for cooperating with a sampling device and comprising: - a cap (30) suitable for being connected to a reservoir (12) for the cosmetic product and comprising at least one distribution duct (44) for the cosmetic product, and - a cap (32) articulated on the cap (30), movably mounted between a closed position and an open position. The distribution duct (44) is suitable for receiving the cap (32) in the closed position by defining a first sealing surface. The distribution duct (44) is suitable for receiving the sampling device (20) in the open position by defining a second sealing surface (62). The first sealing surface and the second sealing surface (62) are axially separated.

Description

The present invention relates to a cosmetic product dispensing head, the dispensing head being adapted to cooperate with a sampling device, the dispensing head comprising a cap suitable for being connected to a reservoir of the cosmetic product, the cap comprising at least one conduit for dispensing the cosmetic product opening downstream into an opening for dispensing the cosmetic product along the main axis.

The invention also relates to a device for packaging and dispensing a cosmetic product closed by such a dispensing head.

The dispensing head is intended in particular to close the reservoir of a device for packaging and dispensing a cosmetic product for dyeing the hair.

More generally, the cosmetic product is for example a hair product, a hygiene product, a facial and / or body care product, a make-up product, or a sun protection product.

A cosmetic product is advantageously a product as defined in Regulation EC No. 1223/2009 of the European Parliament and of the Council, dated November 30, 2009, relating to cosmetic products.

EP 1 015 114 describes a dispensing head of the aforementioned type.

This head comprises a cap connected to a reservoir, the cap comprising a conduit for distributing a liquid contained in the reservoir.

The head comprises a rod making it possible to draw liquid from the distribution duct.

The cap is then unscrewed from the reservoir in order to be able to use the collected liquid.

Such a distribution head is not entirely satisfactory.

In particular, the removal and distribution of the product is particularly tedious because of the need to unscrew the cap each time it is used.

In addition, when the cap is unscrewed, the liquid contained in the tank is in the open air, which can cause the liquid to be spilled out of the tank in the event of the tank falling and oxidation of the liquid in contact with air. .

In particular, the contact of the cosmetic product with oxygen is liable to cause its deterioration, or even the degradation of its properties.

An object of the invention is therefore to provide a dispensing head allowing simple and precise removal of the cosmetic product from a reservoir, while ensuring reliable and effective sealing over time.

To this end, the invention relates to a dispensing head of the aforementioned type, in which the dispensing head further comprises a cap articulated on the cap, 2 movably mounted between a closed position of the dispensing opening of the product. cosmetic product and an open position of the opening for dispensing the cosmetic product, the dispensing duct being suitable for receiving the cap in the closed position by defining a first sealing surface, the dispensing duct 5 being suitable for receiving the pickup device in the open position by defining a second sealing surface, the first sealing surface and the second sealing surface being axially separated along the main axis.

The two sealing surfaces being separated axially, the repeated removal of cosmetic product by the sampling device in the open position 10 does not affect the first sealing surface and thus guarantees long-term preservation of the product, without oxidation.

In addition, the axial separation of the sealing surfaces simplifies the method of manufacturing the head by separating the constraints on the manufacturing tolerances due respectively to the sampling device and to the cap.

The axial separation of the sealing surfaces allows a more suitable design of the cap and thus avoids play at each sealing surface.

In a particular embodiment of the invention, the dispensing head has the characteristic according to which the first sealing surface is located downstream of the second sealing surface.

The first sealing surface being upstream of the second sealing surface, the protection of the first sealing zone is even more important against possible deterioration due to repeated withdrawals by the sampling device.

According to one variant, the first sealing surface defines a first passage section 25 for the cosmetic product and the second sealing surface defines a second passage section for the cosmetic product, the area of the first passage section being different from 1. area of the second passage section.

The difference in passage section allows greater separation between the two sealing surfaces.

According to one variant, the distribution duct comprises a shoulder connecting the first sealing surface and the second sealing surface.

The shoulder serves as a bearing surface limiting the insertion of the sampling device in the sampling duct and thus allows more efficient removal of the cosmetic product.

3 According to one variant, the shoulder is an inclined wall forming an angle of between 5 ° and 85 °, preferably between 20 ° and 70 °, in particular close to 45 ° with the main axis.

The inclined wall facilitates the flow of the residual product possibly present in the distribution duct following the sampling and thus avoids the drying of this product and the clogging of the distribution duct.

Furthermore, the inclination of the wall provides an effect of centering and assistance in positioning and inserting a sampling device adapted to cooperate with the dispensing head.

Such an inclination also allows easier demolding of the dispensing head, advantageously carried out by an injection molding process.

According to one variant, the shoulder defines at least one through-vent capable of extending between the reservoir and the distribution duct, downstream of the second sealing surface.

15 The vent allows air to be taken back from the tank.

The formation of a vacuum in the reservoir when the cosmetic product is withdrawn is avoided and the use of the dispensing head is thus more efficient and more pleasant.

According to one variant, the sampling device is a syringe.

The syringe allows simple, rapid and precise removal of the cosmetic product.

According to a variant, the cap comprises a peripheral collar and a central pin, the central pin projecting from the peripheral collar, the distribution duct being suitable for receiving the central pin in the closed position resting on the first sealing surface. .

The pin allows a tight closure of the distribution duct and easier passage of the cap from the open position to the closed position.

The pin also more effectively maintains the cap in the closed position, while ensuring a sufficient seal.

According to a variant, the central pin has a transverse closure surface 30 directed away from the distribution duct in the closed position, the central pin comprising a retaining stud projecting out of the transverse closure surface along the side. 'main axis in the closed position, the retaining stud being able to fit into the sampling device and to keep the sampling device integral with the cap.

4 The retaining pad makes it easier to store the dispensing head with the sampling device and prevents cosmetic product from drying out at the end of the sampling device and the mouth.

The retention stud prevents the user from losing the sampling device and allows easier identification of the suitable sampling device associated with the packaging and dispensing device.

According to a variant, the distribution head further comprises a dip tube, the dip tube being arranged upstream of the distribution duct and cooperating in a sealed manner with the downstream cap, the dip tube being suitable for being introduced upstream at least. partially in the tank.

The dip tube allows tight cooperation between the head and the reservoir as well as more efficient removal of the cosmetic product.

The subject of the invention is also a device for packaging and dispensing a cosmetic product, comprising a sampling device, a reservoir for the cosmetic product and a dispensing head as defined above, connected to the reservoir and cooperating with the device. debit.

A subject of the invention is also a method for packaging and dispensing a cosmetic product comprising the following steps: - providing a packaging and dispensing device as defined above, the cap being in the closed position, the first sealing surface providing the seal between the distribution duct and the cap; - operation of the cap to move the cap from the closed position to the open position; insertion of the sampling device into the distribution duct, the second sealing surface ensuring the seal between the distribution duct and the sampling device; and - removal of cosmetic product using the sampling device.

According to one variant, the method further comprises the following steps, after the removal step: - operation of the cap to move the cap from the open position to the closed position; and - fixing of the sampling device on the retaining stud.

Other characteristics and advantages of the invention will become apparent on reading the description which follows, given solely by way of example, and made with reference to the appended drawings in which: FIG. 1 is a view of section along a median axial plane of a dispensing head according to the invention cooperating with a sampling device, the cap being in the closed position; FIG. 2 is a view similar to FIG. 1, the cap being in the open position; and - Figure 3 is a top view of Figure 2, the sampling device having been removed.

In what follows, the terms “internal” and “external” are generally understood in relation to the direction of circulation of the cosmetic product.

The term "external" is understood to be closer to the output of the device while the term "internal" is understood to be understood as further from this output.

Likewise, in what follows, the terms “upstream” and “downstream” are generally understood in relation to the direction of circulation of the cosmetic product.

The term “downstream” is understood to be closer to the outlet of the device while the term “upstream” is understood to be understood to be further from this outlet.

A device 10 for packaging and dispensing a cosmetic product is illustrated in FIGS. 1 to 3.

The cosmetic product is, for example, a cosmetic product for coloring, care or make-up.

It advantageously contains a compound capable of being degraded by contact with air, in particular by contact with oxygen in the air.

The device 10 extends along a main distribution axis A-A '.

In what follows, the terms “longitudinal” and “transverse” are generally understood with respect to the main axis A-A ′.

The term "longitudinal" is understood to be parallel to the main axis A-A 'while the term "transverse" is understood to be orthogonal to the main axis A-A'.

The device 10 comprises a reservoir 12 containing the cosmetic product and a dispensing head 14, mounted on the reservoir 12.

The reservoir 12 extends along the main axis A-A '.

The reservoir 12 has a side wall 16, a bottom not shown in the figures and a downstream end 18.

The side wall 16 is advantageously of cylindrical shape with axis A-A '.

The term “cylinder” is understood to mean a surface obtained by the union of all the straight lines, called generatrices, having the same direction and intersecting a given curve called the directrix.

Advantageously, the directrix of the side wall 16 is circular in shape.

As a variant, the directrix of the side wall 16 is oblong in shape.

6 At the downstream end 18, the reservoir 12 defines an upper opening intended for the outlet of the cosmetic product from the reservoir 12.

The distribution head 14 extends along the main distribution axis A-A '.

As can be seen in FIG. 2, the dispensing head 14 is suitable for cooperating with a device 20 for removing the cosmetic product.

The sampling device 20 is configured to take a predetermined quantity of cosmetic product from the reservoir 12.

Advantageously, the sampling device 20 is a syringe, as can be seen in FIGS. 1 and 2.

In known manner, the syringe comprises a cylinder 22, a piston 24 movable in the cylinder 22 by means of a rod and a sampling duct 26 disposed at one end of the cylinder 22.

The movement of the piston 24 in the cylinder 22 is suitable for creating a vacuum in the cylinder 22 and in the sampling duct 26 in order to suck the cosmetic product from the reservoir 12 towards the cylinder 22.

The distribution head 14 comprises a tubular duct 28 connected to the downstream end 18 of the reservoir 12.

The dispensing head 14 further comprises a cap 30 mounted on the tubular duct 28 and a cap 32 articulated on the cap 30.

Advantageously, the distribution head 14 further comprises a dip tube 33.

The tubular duct 28 extends along the main axis A-A '.

The tubular duct 28 has an inner peripheral surface 34 directed towards the main axis A-A 'and an outer peripheral surface 36 directed away from the main axis A-A'.

The outer peripheral surface 36 of the tubular duct 28 has an external thread 38.

The cap 30 is mounted on the tubular duct 28.

The cover 30 comprises an external skirt 39, which at least partially covers the external peripheral surface 36 of the tubular duct 28, an internal sealing skirt 40, a transverse collar 42 and a distribution duct 44.

The outer skirt 39 and the inner skirt 40 form two concentric cylinders 30 free at an upstream end and extending along the main axis A-A '.

The outer skirt 39 has an inner peripheral surface 46, having an internal thread 48 complementary to the thread 38 of the tubular duct 28.

The thread 48 is disposed on a downstream region of the outer skirt 39 adjacent to the transverse flange 42.

A downstream region of the inner peripheral surface 46 of the outer skirt 39 is in this example devoid of thread and 7 has a smooth surface.

The tapping 48 is able to cooperate with the thread 38 to allow the screwing of the cap 30 on the tubular duct 28.

The inner skirt 40 has an outer peripheral surface 50 directed away from the main axis A-A '.

The outer peripheral surface 50 is adapted to cooperate with at least part of the inner peripheral surface 34 of the tubular duct 28.

The transverse flange 42 joins the downstream ends of the outer skirt 39 and the inner skirt 40.

The transverse flange 42 extends transversely from the outer skirt 39 to the distribution duct 44.

The distribution duct 44 projects from the transverse flange 42 upstream 10 of the distribution head 14.

The distribution duct 44 is suitable for being inserted into the tubular duct 28.

The distribution duct 44 is connected upstream to the dip tube 33 and opens downstream into a distribution opening 52 of the cosmetic product along the main axis A-A ′.

The cap 32 is suitable for passing from a closed position of the dispensing opening 52 of the cosmetic product, visible in FIG. 1, to an open position of the dispensing opening 52 of the cosmetic product, visible on figure 2.

As can be seen in FIG. 3, the dispensing opening 52 is here located away from the center of the transverse flange 42 in a transverse plane.

Alternatively, the dispensing opening 52 is located substantially in the center of the transverse flange 42 in a transverse plane.

The distribution duct 44 advantageously has a chamfer 54 forming a distribution lip at the level of the distribution opening 52.

The distribution duct 44 further comprises a first sleeve 56 projecting from the chamfer 54 upstream of the distribution head 14.

The first sleeve 56 is advantageously cylindrical in shape and extends along the main axis A-A '.

The distribution duct 44 is suitable for receiving the cap 32 in the closed position by defining a first sealing surface 58.

The first sealing surface 58 advantageously extends over at least a part of the internal surface of the first sleeve 56.

The first sealing surface 58 advantageously extends over the entire periphery of the first sleeve 56 and has a cylindrical shape extending along the main axis A-A '.

The distribution duct 44 further comprises a second sleeve 60 placed upstream of the first sleeve 56.

8 The second sleeve 60 is preferably cylindrical in shape and extends along the main axis A-A '.

The distribution duct 44 is suitable for receiving the sampling device 20 in the open position by defining a second sealing surface 62.

The second sealing surface 62 advantageously extends over at least a part of the internal surface of the second sleeve 60.

The second sealing surface 62 advantageously extends over the entire periphery of the second sleeve 60 and has a cylindrical shape along the main axis A-A '.

As can be seen in Figures 1 and 2, the first sealing surface 58 and the second sealing surface 62 are axially separated along the main axis A-A '.

In particular, the first sealing surface 58 is located downstream of the second sealing surface 62.

As a variant, provision can be made for the second surface 62 to be located downstream of the first sealing surface 58.

The first sealing surface 58 defines a first passage section for the cosmetic product and the second sealing surface 62 defines a second passage section for the cosmetic product.

The area of the first passage section is different from the area of the second passage section.

In particular, the first passage section has an area greater than the area of the second passage section.

Alternatively, the first passage section has an area smaller than the area of the second passage section.

The distribution duct 44 further comprises a first shoulder 64 connecting the first sealing surface and the second sealing surface.

The first shoulder 64 connects between the first sleeve 56 and the second sleeve 60.

The first shoulder 64 forms a bearing surface limiting the insertion of the cap 32 into the distribution duct 44 in the closed position.

The first shoulder 64 is advantageously an inclined wall forming an angle a of between 5 ° and 85 °, preferably between 20 ° b70 °, and in particular close to 45 ° with the main axis AA 'in section in a median axial On .

The first shoulder 64 thus facilitates the flow of the residual cosmetic product possibly present in the distribution duct 44 following a withdrawal 9 of cosmetic product from the reservoir 12.

The first shoulder 64 thus prevents the drying of the cosmetic product in the distribution duct 44 and the blocking of the distribution duct 44.

In an advantageous embodiment, the first shoulder 64 defines at least one through-vent 66 capable of extending between the reservoir 12 and the distribution duct 44, downstream of the second sealing surface 62.

As visible in FIG. 3, the first shoulder 64 advantageously defines four vents 66 arranged regularly on the transverse periphery of the first shoulder 64.

Each vent 66 advantageously defines a cylindrical air circulation duct extending parallel to the main axis A-A '.

Each vent 66 allows an air intake at the level of the reservoir 12.

The formation of a vacuum in the reservoir 12 when the cosmetic product is withdrawn is thus avoided and the use of the dispensing head 14 is more pleasant for a user of the device 10.

The distribution duct 44 further comprises a third sleeve 68 placed upstream of the second sleeve 60 and a second shoulder 70 connecting the second sleeve 60 and the third sleeve 68.

The third sleeve 68 is preferably cylindrical in shape and extends along the main axis A-A '.

The third sleeve 68 is suitable for fitting into the downstream opening of the dip tube 33.

The second shoulder 70 forms a bearing surface limiting the insertion of the sampling device 20 in the open position.

The cap 32 is mounted on the cap 30.

The cap 32 is movable between the closed position of the dispensing opening 52 of the cosmetic product and the open position of the dispensing opening 52 of the cosmetic product.

In particular, the cap 32 is movable in rotation about a horizontal axis B-B 'extending in a plane perpendicular to the main axis A-A', by means of an articulation 72.

The cap 32 can be moved by the user by pivoting it about the axis B-B 'between the closed position preventing the passage of the cosmetic product to the outside and the open position allowing this passage.

The articulation 72 is here a film of material between the cap 32 and the cap 30.

Advantageously, the cap 32, the cap 30 and the articulation 72 are integral.

The cap 32 has a peripheral flange 74 and a central pin 76.

The central pin 76 protrudes from the peripheral flange 74.

The central pin 76 has a downstream sleeve 78 which extends from the peripheral flange 74 and an upstream transverse wall 80 which sealingly closes the downstream sleeve 78 at its free edge.

As visible in Figure 1, in the closed position, the peripheral flange 74 is applied to the transverse flange 42 of the cap 30.

In the closed position, the distribution duct 44 receives the central pin 76 resting on the first sealing surface 58.

In particular, the central pin 76 is inserted into the central lumen of the distribution duct 44 while being guided by the chamfer 54.

The cap 32 is held in the closed position by pressing the first sealing surface 58 on the downstream sleeve 78.

In the open position, the central pin 76 is placed away from the internal lumen to clear the dispensing opening 52 of the dispensing duct 44.

The cosmetic product is then able to flow through the dispensing opening 52.

In an advantageous embodiment, the central pin 76 has a transverse closing surface 82 directed away from the distribution duct 44 in the closed position.

In particular, the transverse closure surface 82 extends over the upstream transverse wall 80.

The central stud 76 includes a retaining stud 84 protruding outwardly from the transverse closure surface 82 along the main axis A-A 'in the closed position.

The retaining stud 84 is able to fit into the sampling device 20 and to keep the sampling device 20 integral with the cap 32.

In particular, the retaining stud 84 is suitable for being inserted into the sampling conduit 26 of the syringe at the free end of the syringe.

This pushes any product residue that may be at the free end of the sampling device 20 and keeps the free end clear.

The retaining pad 84 thus facilitates the storage of the dispensing head 14 with the sampling device 20 and prevents cosmetic product from drying out at the end of the sampling device 20 and clogging the sampling duct 26.

The dip tube 33 11 is disposed upstream of the distribution channel 44 and cooperates in a sealed manner with the cap 30 downstream.

The dip tube 33 is suitable for being introduced at least partially upstream into the reservoir 12.

5 The dip tube 33 receives the distribution duct 44 in a sealed manner.

In particular, the dip tube 33 receives the third sleeve 68.

The method of mounting the device 10 for packaging and dispensing a cosmetic product will now be described.

Initially, the cap 30 is provided separate from the tubular conduit 28, as shown in Figure 1.

The cover 30 is positioned opposite the tubular duct 28 and the cover 30 is then moved in translation along the main axis A-A 'in the direction of the reservoir 12.

The tubular duct 28 is then partially inserted into the outer skirt 39.

The cover 30 is then screwed onto the tubular duct 28 until the transverse flange 42 of the cover 30 comes into contact with the tubular duct 28.

The internal skirt 40 is then inserted in a sealed manner into the tubular duct 28.

The cap 32 is placed in the closed position and the sampling device 20 is advantageously snapped onto the retaining stud 84.

The method of using the device 10 for packaging and dispensing a cosmetic product will now be described.

Initially, the cap 32 is in the closed position and the sampling device 20 is snapped onto the retaining stud 84.

In particular, the central pin 76 is inserted into the first sleeve 54 bearing 25 on the first sealing surface 58.

The user grasps the sampling device 20 and separates it from the cap 32.

The user moves the cap 32 from the closed position to the open position thanks to the articulation 72 to release the distribution duct 44.

The user then inserts the sampling device 20 into the distribution duct 44.

In particular, the user inserts the sampling duct 26 of the sampling device 20 in the second sleeve 60 resting on the second sealing surface 62, as visible in FIG. 2.

The user takes the cosmetic product by means of the sampling device 20 by moving the piston 24 in the cylinder 22.

The cosmetic product then circulates from the reservoir 12 to the sampling device 20, passing 12 through the distribution duct 44.

Simultaneously, air circulates from the distribution duct 44 to the reservoir 12, passing through the vents 66, thus avoiding a depression in the reservoir 12.

Then, the user closes the cap 32 by folding it down thanks to the articulation 72 and the user fixes the sampling device 20 on the retaining stud 84.

The central pin 76 then again obstructs the distribution duct 44 resting on the first sealing surface 58.

Thus, outside periods of use, the cap 32 prevents contact of the cosmetic product with the air and therefore prevents its oxidation.

Thanks to the invention described above, the removal of the cosmetic product is carried out in a simple manner while ensuring reliable and effective sealing over time.

In particular, the repeated removal of cosmetic product by the sampling device 20 in the open position can cause a local deformation at the level of the second sealing surface 62.

The first sealing surface 58 and the second sealing surface 62 being separated axially, this repeated removal does not affect the first sealing surface 58 and therefore does not affect the sealing of the dispensing head 14 in position. closing.

Thus, the dispensing head 14 according to the invention guarantees long-term preservation of the cosmetic product without oxidation.

In addition, the separation of the two sealing surfaces 58, 62 simplifies the manufacturing process of the dispensing head 14 by separating the constraints on the manufacturing tolerances linked respectively to the sampling device 20 and to the cap 32.

Indeed, the sampling device 20 and the cap 32 possibly being designed with different materials and manufacturing methods, the constraints and manufacturing tolerances are also different.

The axial separation of the two sealing surfaces 58, 62 then allows a more suitable design of the cap 30 in which the manufacturing tolerances of the first sleeve 56 and of the second sleeve 60 are respectively adapted to the tolerances of the cap 32 and of the device. debit 20.

The dispensing head 14 according to the invention also avoids allowing play to appear at the level of each sealing surface 58,

Claims (13)

CLAIMS 1.- Dispensing head (14) of a cosmetic product extending along a main distribution axis (A-A '), the dispensing head (14) being able to cooperate with a sampling device (20), the dispensing head (14) comprising: - a cap (30) suitable for being connected to a reservoir (12) of the cosmetic product, the cap (30) comprising at least one distribution duct (44) of the cosmetic product opening downstream on a dispensing opening (52) of the cosmetic product along the main axis (AA); characterized in that the dispensing head (14) further comprises: - a cap (32) articulated on the cap (30), movably mounted between a closed position of the dispensing opening (52) of the cosmetic product and a opening position of the dispensing opening (52) of the cosmetic product, the dispensing duct (44) being suitable for receiving the cap (32) in the closed position by defining a first sealing surface (58), the distribution duct (44) being suitable for receiving the sampling device (20) in the open position by defining a second sealing surface (62), the first sealing surface (58) and the second surface d 'seal (62) being axially separated along the main axis (A-A'). 2. A dispensing head (14) according to claim 1, wherein the first sealing surface (58) is located downstream of the second sealing surface (62). 3. A dispensing head (14) according to claim 1 or 2, wherein the first sealing surface (58) defines a first passage section for the cosmetic product and the second sealing surface (62) defines a second section. passage of the cosmetic product, the area of the first passage section being different from the area of the second passage section. 4. A dispensing head (14) according to any preceding claim, wherein the dispensing duct (44) comprises a shoulder (64) connecting the first sealing surface (58) and the second sealing surface. (62). 5. A dispensing head (14) according to claim 4, wherein the shoulder (64) is an inclined wall forming an angle (a) between 5 ° and 85 °, preferably between 20 ° and 70 °, and in particular close to 45 ° zec the main axis (A-A '). 14 6. A dispensing head (14) according to claim 4 or 5, wherein the shoulder (64) defines at least one through-vent (66) suitable for extending between the reservoir (12) and the distribution duct ( 44), downstream of the second sealing surface (62). 7. A dispensing head (14) according to any preceding claim, wherein the sampling device (20) is a syringe. 10 8. A dispensing head (14) according to any preceding claim, wherein the cap (32) comprises a peripheral flange (74) and a central pin (76), the central pin (76) projecting from the peripheral flange (74), the distribution duct (44) being suitable for receiving the central pin (76) in the closed position resting on the first sealing surface (58). 15 9. A dispensing head (14) according to claim 8, wherein the central pin (76) has a transverse closing surface (82) directed away from the dispensing duct (44) in the closed position, the central stud (76) comprising a retaining stud (84) projecting out of the transverse closure surface (82) along the main axis (A-A ') in the closed position, the retaining stud ( 84) being able to fit into the sampling device (20) and to keep the sampling device (20) integral with the cap (32). 10. A dispensing head (14) according to any one of the preceding claims, wherein the dispensing head (14) further comprises a dip tube (33), the dip tube (33) being disposed upstream of the conduit. distribution (44) and cooperating in a sealed manner with the cap (30) downstream, the dip tube (33) being suitable for being introduced upstream at least partially into the reservoir (12). 30 11.- Device for packaging and dispensing (10) a cosmetic product, comprising: - a sampling device (20); - a reservoir (12) for the cosmetic product; and - a dispensing head (14) according to any one of the preceding claims, connected to the reservoir (12) and cooperating with the sampling device (20). 15 12.- A method of packaging and dispensing a cosmetic product comprising the following steps: - providing a packaging and dispensing device (10) according to claim 11, the cap (32) being in the closed position, the first sealing surface (58) providing the seal between the distribution duct (44) and the cap (32); - operation of the cap (32) to move the cap (32) from the closed position to the open position; - Insertion of the sampling device (20) in the distribution duct (44), the second sealing surface (62) ensuring the seal between the distribution duct (44) and the sampling device (20); and 5 - removal of cosmetic product using the sampling device (20). 13.- The method of claim 12, wherein the method further comprises the following steps, after the sampling step: - operation of the cap (32) to pass the cap (32) from the open position to the closed position; and - fixing the sampling device (20) on the retaining stud (84).