Container open at two ends and resealable by a deformable cap

Abstract

Resealable container for fluid cosmetic product. The invention relates to a container (1) for a fluid cosmetic product (P), comprising a main body (2) extending between a first end (21) having a dispensing orifice (DO) and a second end (22) opposite the first end (21), said container comprising a first sealing element (3) adapted to selectively close and uncover the dispensing orifice (DO), wherein the second end (22) has an air intake orifice (VO), and wherein the container (1) comprises a second sealing element (4) adapted to selectively close and uncover the air intake orifice (VO). Figure for the abstract: Fig. 8

Description

Title of the invention: Container open at two ends and resealable by a deformable capsule

[0001] The present invention relates to the field of containers for liquid cosmetic products.

[0002] More specifically, the invention relates to a container for a liquid cosmetic product whose internal volume must be refilled with liquid cosmetic product for subsequent use by a user. To this end, the main bottle may, for example, be provided with a dispensing means for delivering the liquid cosmetic product contained in the internal volume of the main bottle to the user, such as a pump, a dispensing cap, or the like.

[0003] A cosmetic product is in particular a product as defined in Regulation 20 EC No 1223 / 2009 of the European Parliament and of the Council dated 30 November 2009 on cosmetic products.

[0004] Furthermore, the term "fluid" cosmetic product should be understood to mean a cosmetic product capable of flowing under its own weight. Generally speaking, a fluid cosmetic product is understood to be a liquid or viscous cosmetic product whose maximum consistency at room temperature (25°C) is such that it can flow under its own weight. By way of example, such a product may be in the form of a liquid with a viscosity on the order of magnitude of that of water, for example, between 1 and 10 times the viscosity of water, a foam, a cream, a paste, or a gel.

[0005] In this field, containers for fluid cosmetic products are known, comprising a main body defining an internal volume adapted to receive the fluid cosmetic product and extending along a longitudinal axis between a first end, called the distribution end, having a distribution orifice in fluidic communication with the internal volume, and a second end opposite to the first end; said container being able to adopt a storage configuration and a distribution configuration, and being provided with a first sealing element adapted to close the distribution orifice in the storage configuration and to clear the distribution orifice in the distribution configuration.

[0006] Documents WO9530590A1, US2005067046A1, WO2013136491A1 and WO2016031429Al describe examples of such a container whose main body is in the form of a flexible pouch made of two sheets sealed together to define an internal volume, and of which a portion is designed to be cut out to provide an opening for dispensing the liquid cosmetic product contained within. pouch. Thus, to refill a main bottle, the user of such a flexible pouch cuts out a part of the pouch giving access to its internal volume through a dispensing orifice, places this dispensing orifice opposite the opening of a main bottle and exerts pressure on the flexible pouch or rolls the flexible pouch on itself, in order to cause the liquid cosmetic product to exit from the internal volume of the flexible pouch into the internal volume of the main bottle.

[0007] A container of the aforementioned type is also known from document WO2021085362A1. The main body of this container is formed of two relatively rigid shells joined together to define an internal volume, and a portion of this portion is designed to be cut out to provide a dispensing orifice for the liquid cosmetic product contained in the main body. To refill a main bottle, the user of such a container cuts out a portion of the main body, forming a dispensing cannula that provides access to its internal volume through a dispensing orifice. This dispensing orifice is then positioned opposite the opening of a main bottle, and the liquid cosmetic product contained in the container's internal volume is poured into the main bottle by gradually tilting the container relative to the main bottle until the container is completely empty.

[0008] Such containers, whether in the form of a flexible pouch or a relatively rigid shell, present a number of drawbacks, particularly in terms of yield rate, i.e., the capacity of the internal volume to be completely emptied of the liquid cosmetic product it contains, as well as ease and cleanliness of use. The invention aims in particular to provide a container of the aforementioned type that is reusable after complete or partial use, so as to save cosmetic product.

[0009] The development of eco-responsible, environmentally friendly solutions, whose design and development take environmental issues into account, is becoming a major concern in order to help meet global challenges. It is therefore essential to design products that reduce the amount of materials used and / or replace them with more environmentally friendly materials and / or use recyclable materials in order to decrease the product's carbon footprint and / or reduce its environmental impact.

[0010] In this context, it is important to develop products that generate less waste, particularly those optimized for the quantity of product transported, notably by redesigning and / or resizing them to reduce the volume and weight of packaging. The objective is to offer eco-responsible, reusable products, particularly those that can be refilled at home or in stores, in order to reduce the carbon footprint of the products. Another objective of the invention is the considerable reduction in the filling time for viscous, serum-type formulas.

[0011] In order to overcome all or part of these drawbacks, the present invention proposes a container for a fluid cosmetic product, comprising a main body defining an internal volume adapted to receive the fluid cosmetic product and extending along a longitudinal axis X between: a first end, called the dispensing end, having a dispensing orifice in fluidic communication with the internal volume, and a second end opposite the first end; said container being able to adopt a storage configuration and a dispensing configuration, and being provided with a first sealing element adapted to close the dispensing orifice in the storage configuration and to open the dispensing orifice in the dispensing configuration, the second end of the main body is an air intake end and has an air intake orifice in fluidic communication with the internal volume,and the container is provided with a second sealing element adapted to close the air intake orifice in the storage configuration and to open the air intake orifice in the dispensing configuration, such that the transition from the storage configuration to the dispensing configuration and the opening of the dispensing orifice and the air intake orifice by the first and second sealing elements causes the flow by gravity of the liquid cosmetic product contained in the internal volume of the container; the second sealing element comprises a capsule that is at least partially deformable and has its concavity facing the main body; in the storage configuration of the container, the capsule is in a relaxed position and in the dispensing configuration of the container, the capsule is in a compressed position.

[0012] Preferably, the capsule is capable of deforming if the user applies pressure to the capsule towards the main body. Air can then enter to regulate the pressure inside the main body, resulting in a rapid flow of the product. The capsule then returns to its original shape, notably to ensure a seal with the bottle. The container can be used multiple times if necessary.

[0013] Preferably, the second sealing element comprises a rod extending along the longitudinal axis X and a concave capsule with concavity facing the rod, the capsule extending radially around the longitudinal axis X and ending with a peripheral retaining part at least partially deformable around one perimeter and interrupted circumferentially around the longitudinal axis X, by openings separated from each other by contact tabs, the rod defining a non-symmetrical envelope surface of revolution around the axis and ending with a free end delimiting a retaining relief to the main body.

[0014] According to the invention, the capsule is deformable around its perimeter and the openings located between the tabs forming fins allow air to infiltrate into the second The sealing element passes between the stem and the bottom of the bottle to enter the main body above the product to be dispensed. Preferably, the stem is hollow for better deformation and conformity to the bottle during filling, thus creating a better seal between uses.

[0015] The legs can form an inclination with the platform, in particular with an angle greater than 90° and less than 150°. The inclined slope system allows air to infiltrate gradually, in particular to better control the flow rate of the product.

[0016] The rod forming a spike is delimited by a wall whose outer face is advantageously not symmetrical of revolution with respect to the longitudinal axis X. This geometry causes the formation of a progressive air passage promoting a gradual airflow, for a better experience perceived by the user.

[0017] Thanks to these provisions, the invention offers a container for fluid cosmetic product, whose rate of restitution, simplicity, ergonomics and cleanliness of use are improved.In particular, the implementation within the container according to the invention of an air return orifice opposite the dispensing orifice allows, when the air return orifice is cleared by the sealing element associated with it and the dispensing orifice is placed in fluidic communication with the internal volume of the main bottle after clearing of the associated sealing element, to cause a continuous and substantially laminar gravity flow of the fluid cosmetic product received in the internal space of the container towards the internal volume of the main bottle to be refilled, avoiding any bubbling phenomenon, due to an air return through the dispensing orifice which would take place during the flow of the product out of the container, slowing down this flow, or stagnation of residual cosmetic product inside the container, if this container were devoid of such an air return orifice.Thus, the container according to the invention makes it possible to achieve an improved, if not substantially complete, restitution rate by simple gravity flow of the fluid cosmetic product it contains, without requiring any particular deformation of its main body to cause the fluid cosmetic product to exit, in a reduced time and minimizing the risk of soiling or spillage of the cosmetic product outside the main bottle to be refilled by avoiding the bubbling phenomenon due to air intake at the distribution orifice, the air intake taking place through the air intake orifice at the second end of the main body, opposite the first end of the main body which is equipped with the distribution orifice.

[0018] Thanks to these provisions, the invention offers a container for a fluid cosmetic product, the yield rate, simplicity, ergonomics, and cleanliness of use of which are improved because the container is resealable by the second sealing element. In particular, product savings can be achieved because any unused product can be stored in the container for future use instead of being discarded if the product is only partially used. Similarly, the container can be resealed for refilling and reuse if the product is completely used.

[0019] Thanks to these provisions, the invention proposes a container for fluid cosmetic product forming a primary pack.

[0020] Preferably, the dispensing orifice and / or the air return orifice are centered on the longitudinal axis of the main body of the container. This promotes the speed and laminar flow of the liquid cosmetic product out of the container, as well as the balancing of the container, which is advantageous for its connection to the main bottle.

[0021] In a conventional manner, the main bottle extends along a longitudinal axis, defines an internal volume and includes a neck delimiting an opening, a bottom and a side wall connecting said bottom to said neck by being connected to the latter by a shoulder.

[0022] Furthermore, preferably, the first end of the main body includes a dispensing cannula with a dispensing orifice, the outer diameter of which preferably corresponds substantially to the inner diameter of the neck of the main bottle. These arrangements further improve the reliability of the coupling between the container and the main bottle and limit the risk of the main bottle being contaminated by the cosmetic product during a refilling operation. This is achieved by providing a dispensing cannula on the container adapted to be inserted at least partially into the opening of the neck of the main bottle, thus ensuring a clean and spill-free transfer of the liquid cosmetic product from the container to the main bottle.Furthermore, the implementation of such a dispensing cannula helps to limit the risk of the container tipping around an axis perpendicular to the longitudinal axis when coupled to the main bottle, and thus improves the stability of the assembly formed by the container coupled to the main bottle.

[0023] In a particularly advantageous embodiment, especially with regard to reducing the environmental impact of the container, both during its manufacture and its transport and distribution, as well as at the end of its life, the main body comprises an inner layer adapted for contact with the liquid cosmetic product and made, for example, of plastic, and an outer layer made, for example, of a cellulose material, such as paper, cardboard, or paper or cardboard pulp, or of plastic. The inner layer only provides a sealing and impermeability function to oxygen and water vapor for the cosmetic product received within the main body of the container, and not a function structural integrity of the container, this function being ensured essentially by the outer layer, we can thus minimize the amount of plastic material used to make the container, in particular by using a cellulosic material, especially recycled and / or recyclable, for the outer layer.

[0024] According to a particularly advantageous embodiment of the invention, the dispensing orifice has a first cross-section, and the air return orifice has a second cross-section smaller than or equal to the first cross-section. By providing a larger area, a larger cross-section for the flow of the fluid cosmetic product, at the air return orifice than at the dispensing orifice, it is ensured that the flow of the fluid cosmetic product through the dispensing orifice is not limited or hindered by the air intake capacity of the main body of the container through the air return orifice. The emptying rate of the main body of the container is thus optimized. Advantageously, the cross-section of the air return orifice is greater than or equal to twice the cross-section of the dispensing orifice. For example, the cross-section of the dispensing orifice is approximately 5 mm² and the cross-section of the air return orifice is approximately 10 mm².

[0025] In particular, the internal volume of the main body contains a fluid cosmetic product having a viscosity at room temperature (20°C) between 0.001 Pa.s and 10 Pa.s.

[0026] Preferred embodiments

[0027] Preferably, the container according to the invention has one or more of the following characteristics, taken alone or in combination.

[0028] The concave capsule internally comprises at least one projecting relief adapted to abut against the main body in the dispensing configuration and to move away from the main body in the storage configuration. Advantageously, the relief is a projection in the shape of an arc of a circle, a portion of a circle, a semicircle, or a straight or curved portion of material.

[0029] The rod defines a hollow ribbon for the passage of air.

[0030] The stem is hollow.

[0031] The first sealing element comprises a first cover suitable for being assembled at the first end by screwing, snapping, press fitting, clipping, in storage configuration.

[0032] It forms a recharge.

[0033] It forms a primary pack.

[0034] It is delimited by a protective rim extending along the longitudinal axis X.

[0035] The invention also proposes an assembly comprising a container as described above and a main bottle extending along a longitudinal axis, defining an internal volume and comprising a neck delimiting an opening, a base and a wall A lateral connection linking said base to said neck, being connected to the latter by a shoulder. According to an advantageous arrangement, the internal volume of the main bottle is greater than or equal to, and preferably substantially equal to, the internal volume of the main body of the container. Thus, the container constitutes a refill for the main bottle, and can, in particular, be used single-use and discarded once the liquid cosmetic product it contains has been transferred into the main bottle. For example, the internal volume of the main bottle and the internal volume of the container are approximately 30 mL.

[0036] Furthermore, the present invention also relates to a method of using such an assembly, comprising the steps, preferably successive, of: providing a main bottle whose internal volume must be refilled with fluid cosmetic product; providing a container of fluid cosmetic product; clearing the dispensing orifice by the first sealing element; placing the main body of the container on the main bottle by aligning the dispensing orifice of the main body and the neck opening, in particular by making the longitudinal axis of the main body coincide with the longitudinal axis of the main bottle;Open the air intake opening by applying pressure to the second sealing element, so as to cause the liquid cosmetic product contained in the internal volume of the container to flow by gravity into the internal volume of the main bottle; close the air intake opening by releasing the second sealing element when a desired quantity of cosmetic product has flowed into the main bottle.

[0037] The process according to the invention creates a new gesture linked to the operation of the second sealing element.

[0038] The invention also relates to a resealable refill comprising a container of fluid cosmetic product as defined above.

[0039] The invention will be better understood upon reading the following description, accompanied by non-limiting examples of its implementation, with reference to the accompanying drawings, in which:

[0040] [Fig. 1] represents in perspective a container of fluid cosmetic product according to the invention;

[0041] [Fig.2] illustrates the bottle according to the invention in longitudinal section before refilling;

[0042] [Fig.3] illustrates the bottle according to the invention in longitudinal section after refilling;

[0043] [Fig.4] shows in longitudinal section the stages of use of a container according to the invention to achieve the refilling of the main bottle with liquid cosmetic product by the container.

[0044] [Fig.5] illustrates a capsule according to the invention seen in inclined perspective from below;

[0045] [Fig.6] shows in perspective a longitudinal section of the upper part of the bottle fitted with the cap of [Fig.5];

[0046] [Fig.7] represents a longitudinal section of the capsule according to the invention, taken in isolation;

[0047] [Fig.8] shows another longitudinal section of the upper part of the bottle equipped with the capsule of [Fig.5];

[0048] [Fig.9] represents a longitudinal section of the upper part of the bottle equipped with the capsule of [Fig.5], the capsule being in the released position;

[0049] [Fig. 10] represents a longitudinal section of the upper part of the bottle fitted with the cap of [Fig.5], the cap being at the beginning of being pushed in;

[0050] [Fig. 11] represents a longitudinal section of the upper part of the bottle fitted with the cap of [Fig.5], the cap being fully inserted.

[0051] Fig. 1 illustrates in perspective a particularly advantageous embodiment of the container 1 for a fluid cosmetic product according to the invention.

[0052] As can be seen in particular in this [Fig. 1], as well as in Figures 2 to 4, the container 1 according to the invention comprises a main body 2, defining an internal volume 20 adapted to receive a fluid cosmetic product P with which the internal volume of a main bottle is to be refilled. The container 1 is delimited by a protective rim 200 which extends the bottom 12 of the body 2 outwards from the container 1.

[0053] The main body 2 of the container 1 extends along a longitudinal axis X between a first end 21, the distribution end of the fluid cosmetic product P, and a second end 22, opposite the first end 21 and called the air intake end.

[0054] The first end 21 of the main body 2 has a distribution orifice DO, in fluidic communication with the internal volume 20 of the main body 2 and through which the fluid cosmetic product P contained in the internal space 20 of the main body can be distributed out of the container 1, in particular towards a main bottle to be refilled. The second end 22 of the main body 2 has an air intake orifice VO, in fluidic communication with the internal volume 20 of the main body 2 and through which air is admitted into the internal volume 20 of the main body 2 as the fluid cosmetic product contained within it flows out of the internal volume 20 of the main body 2 through the distribution orifice.

[0055] The DO distribution and VO air return ports are aligned with each other and centered on the longitudinal axis X of the main body 2. The invention could also be implemented with DO distribution and VO air return ports eccentric with respect to the longitudinal axis X.

[0056] The container 1 according to the invention can adopt a storage configuration in which the fluid cosmetic product P is received in a sealed manner in the volume internal 20 of the main body 2 and a distribution configuration, in which the fluid cosmetic product P contained in the internal volume 20 of the main body 2 can be distributed outside the main body 2 through the distribution orifice DO.

[0057] For this purpose, the main body 2 of the container 1 according to the invention is provided with a first sealing element 3 adapted to seal the distribution orifice DO in storage configuration and to clear the distribution orifice DO in distribution configuration.

[0058] Furthermore, and according to the invention, the main body 2 of the container 1 is provided with a second sealing element 4 adapted to seal the air return orifice VO in storage configuration and to clear the air return orifice VO in distribution configuration.

[0059] Thanks to these arrangements, the passage of the container 1 from its storage configuration to its distribution configuration, by the release of the first and second sealing elements 3, 4 respectively from the distribution orifice DO and the air intake orifice VO, causes the flow by gravity of the fluid cosmetic product P contained in the internal volume 20 of the main body 2 of the container 1, through the distribution orifice DO, in particular towards the main bottle to be refilled.

[0060] In the example shown, the main body 2 and more broadly the container 1 is made in the form of a cylindrical container, in particular from a sheet of thermoplastic material.

[0061] The first sealing element includes in particular a stopper or a service cap.

[0062] Advantageously, the main body 2 and more generally in the illustrated embodiment, the container 1 has a structure comprising an inner layer adapted for contact with the fluid cosmetic product P and made for example of plastic material, and an outer layer made for example of cellulosic material, such as paper, cardboard or paper or cardboard pulp, or of plastic material.

[0063] The container 1 according to the invention is intended to constitute a refill of fluid cosmetic product P 10 illustrated in figures 2, 3 and 4. The main bottle 10 to be refilled extends along a longitudinal axis X, defines an internal volume 100 adapted to receive the fluid cosmetic product P and includes a neck 11 delimiting an opening O, a bottom 12 opposite the opening along the longitudinal axis X' and a side wall 13 connecting the bottom 12 to the neck 11 by being connected to the neck 11 by means of a shoulder 14.

[0064] According to a particularly advantageous embodiment of the invention, the container 1 is provided with means for facilitating and improving the reliability of the coupling of the container 1 in dispensing configuration and main bottle 10 to be refilled with fluid cosmetic product P.

[0065] Thus, the first end 21 of the main body 2 advantageously includes a receiving housing centered on the distribution orifice DO, adapted to receive the neck 11 of the main bottle 10 and whose external radial dimension preferably corresponds substantially to the external diameter De of the neck of the main bottle 10.

[0066] Furthermore, the first end 21 of the main body 2 includes a dispensing cannula 212 having the dispensing orifice DO, and whose outer diameter of preferably corresponds substantially to the inner diameter Di of the neck 11 of the main bottle 10. In this way, when the container 1 is placed on the main bottle 10, the dispensing cannula 212 is inserted through the opening O into the neck 11 of the main bottle 10, with play, with a slight rubbing contact or even with a slight tightening.

[0067] Advantageously, the dispensing cannula 212 having the dispensing orifice DO extends along the longitudinal axis X. This ensures that the dispensing orifice DO is located inside the neck 11 when the container 1 is coupled to the main bottle 10 to be refilled along the longitudinal axis X, as can be seen in particular in figures 7 to 10.

[0068] According to a particularly advantageous arrangement, the cross-sectional area S2 of the air return orifice VO is preferably less than or equal to the cross-sectional area SI of the distribution orifice DO. For example, the cross-sectional area SI of the distribution orifice DO is approximately 5 mm² and the cross-sectional area S2 of the air return orifice VO is approximately 10 mm².

[0069] The fluid cosmetic product P intended to be contained in the container 1 and transferred to the main bottle 10 preferably has a viscosity at room temperature (20°C) of between 0.001 Pa.s and 10 Pa.s. Such a fluid cosmetic product P may, for example, be a body hygiene composition, such as a shower gel or cream, a makeup composition, such as a liquid foundation, a skincare composition, such as a serum or other, or a hair product, such as a shampoo or hair coloring product.

[0070] We will now describe the different successive stages of use of an assembly comprising a container 1 of fluid cosmetic product P and a main bottle 10 to be refilled with product.

[0071] In a first step, a master bottle 10 as illustrated in [Fig.2] is provided, the internal volume 100 of which is empty and must be loaded or refilled with fluid cosmetic product P as shown in [Fig.3], as well as a container 1 as described previously.

[0072] In a second step, illustrated in [Fig. 4], the container 1 is positioned and coupled onto the main bottle 10 to be refilled. The second sealing element 4 is pressed to begin filling. Furthermore, the longitudinal axis X of the main body 2 of the container 1 is aligned with the longitudinal axis X' of the main bottle 10, and the dispensing orifice DO of the main body 2 of the container 1 is aligned with the opening O of the neck 11 of the main bottle 10.

[0073] More specifically, when coupling the container 1 to the main bottle 10, the container 1 is moved along the longitudinal axis X towards the main bottle 10. In this distribution configuration, with the distribution orifices DO and air return VO clear, the fluid cosmetic product P is free to flow simply under the effect of gravity through the distribution orifice DO towards the internal volume 100 of the main bottle 10, until almost complete emptying of the internal volume 20 of the main body 2 of the container.

[0074] Advantageously, the internal volume 100 of the main bottle 10 is substantially equal to the internal volume 20 of the main body 2 of the container 1. As an example, the internal volume 100 of the main bottle 10 and the internal volume 20 of the main body 2 of the container 1 are close to 30 ml.

[0075] The main body 2 of the container 1 can then be separated from the main bottle 10 after closing the second sealing element if desired.

[0076] Finally, the neck 11 of the main bottle 10 can be closed, for example by means of a stopper, or be equipped with a distribution means, such as a pump, a dispensing cap or other, allowing the distribution of the fluid cosmetic product P outside the main bottle 10.

[0077] Figure 5 represents a stopper 4, forming the second sealing means 4, intended to be attached to the bottom 12 of the container 1, so as to be able to close the container 1 hermetically. It comprises a cap 54 and a stem 52 formed inside the body 53 of the cap 54, the cap 54 defining the top of the stopper 4. The stem 52 is oriented perpendicularly to the longitudinal axis X towards the inside of the container 1.

[0078] The cap 54 includes a peripheral retaining portion 55, adapted to bear against a surface, in particular against the bottom 12 of the main bottle 10. The peripheral retaining portion 55 is at least partially elastically deformable. It is interrupted circumferentially by openings 60, giving rise to tabs 58 spaced circumferentially apart from each other and separated from each other by openings 60 located between the tabs 58.

[0079] The capsule comprises a body 53 connecting at its upper end to the peripheral retaining portion 55, forming a single piece with the retaining portion. The portion of retention 55 is arranged to rest against the outer face of the bottom 12 of the container 1. In the example shown, the stopper 4 is monolithic.

[0080] As can be seen in [Fig.6], the body 53 has a flat wall perpendicular to the longitudinal axis X connecting to an inclined wall extended by the peripheral retaining part 55. The capsule 54 could have a completely different shape, for example a hemisphere, ogive, or half-cube shape, for example.

[0081] The cap defines, with the base 12, a free space of variable height located under the capsule 54 and around an upper portion of the stem 52.

[0082] As can be seen in [Fig.7], the rod 52 carried by the capsule 54 internally defines a hollow space 91 elongated along the longitudinal axis X, this hollow space 91 being symmetrical about revolution or substantially symmetrical about revolution about the axis X. The rod 52 can, for example, have a length along the axis X much greater than its width perpendicular to the axis X, for example more than twice, or even more than three times greater than its width.

[0083] The rod 52 externally defines a non-symmetrical envelope surface 93 of revolution about the axis X, facilitating air circulation between the rod 52 and the bottom wall 12. The rod may, in particular, have a generally elongated longitudinal cross-section. In a preferred embodiment, the envelope surface 93 is non-symmetrical with respect to a median plane perpendicular to the longitudinal axis X.

[0084] In the example shown, the envelope surface 93 has, at at least one point along its length, a cross-section with respect to the longitudinal axis X that is not continuously circular, as can be seen in [Fig. 8]. The envelope surface 93 has a generatrix along the longitudinal axis X that is not strictly rectilinear. The tangent T at any point of this generatrix, in a cutting plane containing the axis X, makes, for example, an angle θ with the axis X that is always strictly less than 90° and, for example, always less than or equal to 60°.

[0085] The rod 52 is mounted to slide in the passage 34 of the container 1. For this purpose, an upper part 41 of the capsule 54 has a shape complementary to that of the bottom 12, so that the rod 52 can slide in the passage 34. The inner face of the plate 41 comprises, in the example shown, two ribs 70 and 71, in the form of arcs of a circle, extending radially on either side of the rod 52 of the stopper 4 and forming stops.

[0086] The stem 52 engages against the wall 44 defining the passage 34. The free end 57 of the peripheral retaining portion 55 of the cap 54 rests against the upper wall of the base 12, regardless of the position of the cap between the maximum insertion position and the maximum release position. In the maximum release position, the free ends of the tabs 58 can come flush with the base 12.

[0087] The ribs 70 and 71 come to rest against the base 12 of the refill in the position of maximum insertion of the plug 4. They are distant from the base 12 of the refill in the position of maximum release of the plug 4. In order to define a passage for air between the rod 52 and the base 12, the rod 52 may have a protruding relief 46 defining an air circulation channel 88. For example, an air circulation channel 88 may be located between the protruding relief 46 and the retaining collar 92, as shown in [Fig. 5].

[0088] Furthermore, in the maximum release position of the stopper 4, the device remains sealed at atmospheric pressure as long as the stopper 4 is not extracted from the bottom 12 of the container 1. The force to extract the stopper 4 from the bottom 12 is greater than the weight of the container 1 filled with product P.

[0089] The rod 52 extends longitudinally along the longitudinal axis X and has a conduit body 91 with a maximum outside diameter less than the inside diameter of the passage 44 ending with a retaining collar 92 with a maximum outside diameter greater than the inside diameter of the passage 44.

[0090] The capsule 54 can be umbrella-shaped, with an outer diameter greater than the inner diameter of the passage 34. To make the container 1, the cap 14 can be applied to the main body 2 by pushing the cap 14 into the passage 34 from outside the main body.

[0091] The stem 52 terminates with a free end bordered by an annular bead 73 forming an inner rim 48 which extends radially outwards from the lower end 44 and has a first outer surface 59 which is circumferentially continuous to provide a contact area with the inner surface 30 of the bottom 12 radially surrounding the central passage 34.

[0092] The rod 52 extends longitudinally opposite the inner rim 48 and has a maximum outside diameter less than the outside diameter of the rim 48. The rim 48 has an outside diameter greater than the diameter of the narrowed passage 35.

[0093] On [Fig.9], the first inner rim 48 is in contact with the inner surface 30 of the wall 12. Air passes slightly between the bottom 12 and the stem 52 as materialized by a simple arrow on [Fig.9], to possibly join the interior of the container 1.

[0094] As illustrated in [Fig. 10], in the event of pressure P applied to the stopper (represented by a double arrow in [Fig. 10]) by a user, the stopper is moved so that the rim 48 is pushed into the passage 34 towards the inside of the container 1. This movement occurs until the ribs 70 and 71 come to rest against the outer face of the transverse wall of the bottom 12, to mark the end of the stopper's stroke.

[0095] In [Fig. 11], the stopper is shown at the end of its travel. In this configuration, the air inside the internal volume 20 can escape between the stem 52, the annular rim 73, and the wall 12 via the ventilation spaces 100, following the arrows shown in [Fig. 11]. In this configuration, the airflow into the container 1 is greater than the airflow in the configuration of [Fig. 10]. The cross-sectional area of ​​the air passage between the stem 52 and the bottom 12 is larger than in [Fig. 10], reaching its maximum at the stop.

[0096] Air circulates between the rod 52 and the bottom 12, notably by using the air circulation channel 88. Alternatively, the air circulation channel 88 could also be formed by a notch, a cutout or a recess, made in the rod 52.

[0097] The container according to the invention has the following additional advantages:

[0098] In the example shown, the container comprises only three parts in total, namely a main body, a first and a second sealing element,

[0099] By positioning the air intake opposite the product flow, pressure regulation is faster,

[0100] No need for a dip tube,

[0101] No need to squeeze the refill,

[0102] The juice passage diameter can be fully optimized and maximized.

[0103] The invention has been illustrated by an example concerning a refill. The refill container could be a primary pack, for example a shampoo bottle.

[0104] The invention is not limited to the illustrated embodiments. Other presentations of the display are in particular part of the present invention. Those skilled in the art will understand that the embodiments described above can be combined to form new embodiments provided they are technically compatible.

Claims

1. Demands Container (1) for fluid cosmetic product (P), comprising a main body (2) defining an internal volume (20) adapted to receive the fluid cosmetic product (P) and extending along a longitudinal axis (X) between: a first end (21), called the dispensing end, having a dispensing orifice (DO) in fluidic communication with the internal volume (20), and; a second end (22) opposite the first end (21); said container (1) being able to adopt a storage configuration and a dispensing configuration, and being provided with a first sealing element (3) adapted to close the dispensing orifice (DO) in the storage configuration and to clear the dispensing orifice (DO) in the dispensing configuration, the second end (22) of the main body (2) is an air return end and has an air return orifice (VO) in fluidic communication with the internal volume (20),and the container (1) is provided with a second sealing element (4) adapted to seal the air return orifice (VO) in the storage configuration and to uncover the air return orifice (VO) in the dispensing configuration, such that the transition from the storage configuration to the dispensing configuration and the uncovering of the dispensing orifice (DO) and the air return orifice (VO) by the first and second sealing elements (3, 4) causes the flow by gravity of the fluid cosmetic product (P) contained in the internal volume (20) of the container (1), characterized in that the second sealing element (4) comprises a capsule (54) that is at least partially deformable with its concavity facing the main body (2); in the storage configuration of the container (1), the capsule (54) being in a relaxed position and in the dispensing configuration of the container (1), the capsule (54) being in a compressed position,and by the fact that the second sealing element (4) comprises a stem (52) extending along the longitudinal axis (X) and a concave capsule (54) with its concavity facing the stem (52), the capsule (54) extending radially around the longitudinal axis (X) and terminating in a peripheral retaining portion (55) at least partially deformable around one periphery and interrupted circumferentially around the longitudinal axis (X) by separate openings (60), between them by contact legs (58), the rod (52) defining an envelope surface (93) not symmetrical of revolution around the axis (X) and ending with a free end delimiting a retaining relief (92) to the main body (2).

2. Container according to claim 1, characterized in that the concave capsule (54) internally comprises at least one protruding relief adapted to butt against the main body (2) in dispensing configuration and to move away from the main body (2) in storage configuration.

3. A container according to any one of claims 1 or 2, characterized in that the stem (52) defines a hollow ribbon for the passage of air.

4. Container according to any one of claims 1 to 3, characterized in that the stem (52) is hollow.

5. Container according to any one of the preceding claims, characterized in that the first sealing element (3) comprises a first cover suitable for being assembled to the first end (21) by screwing, snapping, press fitting, clipping, in storage configuration.

6. Container according to the preceding claim, characterized in that it is delimited by a protective rim (200) extending along the longitudinal axis (X).

7. Longitudinal axis assembly (X) comprising a container (1) according to any one of the preceding claims and a main bottle (10) extending along a longitudinal axis (X), defining an internal volume (100) and comprising a neck (11) delimiting an opening (O), a bottom (12) and a side wall (13) connecting said bottom (12) to said neck (11) by being connected to the latter by a shoulder (14), said internal volume (100) of the main bottle (10) being in particular greater than or equal to, and preferably substantially equal to, the internal volume (20) of the main body (2) of the container (1).

8. A method of using an assembly according to the preceding claim, comprising the steps, preferably successive, of (i) providing a master bottle (10) whose internal volume (100) is to be refilled with fluid cosmetic product (P); (ii) providing a container (1) of fluid cosmetic product (P) according to any one of claims 1 to 7; (iii) clearing the dispensing orifice (DO) by the first sealing element (3); (iv)

9. place the main body (2) of the container (1) on the main bottle (10) by aligning the dispensing orifice (DO) of the main body (2) with the opening (O) of the neck (11), in particular by making the longitudinal axis (X) of the main body (2) coincide with the longitudinal axis (X') of the main bottle (10); (v) clear the air return orifice (VO) by exerting pressure on the second sealing element (4), so as to cause the flow by gravity of the fluid cosmetic product (P) contained in the internal volume (20) of the container (1), towards the internal volume of the main bottle (10), close the air return orifice (VO) by releasing the second sealing element when a desired quantity of cosmetic product has flowed into the main bottle (10). Resealable refill comprising a container (1) of fluid cosmetic product (P) according to any one of claims 1 to 6.

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