Cosmetic product packaging device

Abstract

A device (1) for packaging a product, in particular a cosmetic product, comprising: - a container (10) extending along an elevation axis (Z-Z') and comprising an internal volume; - a lid (20) hinged with respect to the container (10) between a closed position in which the lid cooperates with the container (10) and closes the access to the internal volume of the container (10) and an open position in which the lid (20) is pivoted away from the container (10) to allow access to the internal volume. The device comprises a reinforcing member (40) mounted in the lid (20) and comprising at least one reinforcing element (42) extending from the reinforcing member (40) towards the lid (20) along the elevation axis (Z-Z') and rigidly fixed to the lid (20).

Description

[0001] The present invention relates to the field of packaging of cosmetic products.

[0002] The term "cosmetic product" is particularly understood in the meaning of the present invention as meaning the products defined in Regulation (EC) No. 1223 / 2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products.

[0003] More particularly, the packaging device according to the present invention is intended for packaging a cosmetic product, such as a makeup product, for example an anhydrous makeup product in the form of a compact powder, or a non-anhydrous formula product, for example a hot-pour formula product, intended to be applied to the cutaneous surface of a user, for example a foundation or a face powder.

[0004] Such a cosmetic product packaging device can for example be in the form of a box comprising a container delimiting an internal cavity and a lid hinged to the container between a closed position of the box, in which the lid cooperates with the container to close the internal cavity, and an open position of the box, in which the lid is spaced apart from the container to release access to the internal cavity.

[0005] It is known practice to equip such a packaging assembly with a support member intended to receive at least one cosmetic product. The support member is mounted in the internal cavity of the container and forms an insert arranged in the container. This design, which comprises a container and a support member separate from one another, makes it possible to use two different materials for these elements, so that the container / support member assembly can provide its expected mechanical and aesthetic functions, while having the best manufacturing cost.

[0006] The known product packaging assemblies are not entirely satisfactory in terms of weight.

[0007] There is therefore a need to provide a device for packaging a cosmetic product that is lighter than the known packaging devices, while maintaining a satisfactory rigidity of the device.

[0008] In particular, making the cosmetic product packaging device lighter is an important consideration during its design, not only in order to reduce the amount of material, in particular plastic material, used to manufacture the device, thereby reducing its manufacturing cost, but also in order to reduce the resources and energy required for its manufacture, transport and recyclability, thereby also addressing the problem of reducing its ecological impact during its lifetime.

[0009] However, this objective must be reconciled with the need to ensure the integrity and structural rigidity of these new generations of cosmetic product packaging devices, at least comparable to that of the previous generation of cosmetic product packaging devices.

[0010] The subject of the present invention is a device for packaging a product, in particular a cosmetic product, comprising:

[0011] - a container extending along an elevation angle axis and comprising an internal volume delimited, for example, by a lower wall and a peripheral wall;

[0012] - a lid hinged with respect to said container between a closed position, in which it cooperates with the container and closes the access to the internal volume of said container, and an open position, in which it is pivoted away from the container to allow access to said internal volume.

[0013] The device comprises a reinforcing member mounted in the lid. One of the reinforcing member or the lid comprises at least one reinforcing element extending along the elevation angle axis from one of the reinforcing member or the lid towards the other of the lid or the reinforcing member and rigidly fixed to the other of the lid or the reinforcing member.

[0014] In other words, the reinforcing member can comprise a reinforcing element extending towards the lid, or the lid can comprise a reinforcing element extending towards the reinforcing member.

[0015] By means of the reinforcing member, it is possible to significantly reduce the thickness, in particular of the lid, thus reducing the weight and the quantity of material used to manufacture the product packaging device while maintaining the constant rigidity of the assembly formed by the lid and the reinforcing member.

[0016] Preferably, the lid and / or the reinforcing member are made of plastic, in particular thermoplastic polymer.

[0017] Advantageously, the lid and / or the reinforcing member are made of polyolefin, for example polypropylene (PP), polyethylene (PE), high or low density polyethylene (HDPE, LDPE) or linear low density polyethylene (LLDPE).

[0018] The lid and / or the reinforcing member can also be made of polyethylene terephthalate (PET) or another copolyester, or even a thermoplastic polymer with good impact resistance, for example acrylonitrile-butadiene-styrene (ABS) or styrene-acrylonitrile (SAN) copolymer or another styrene polymer.

[0019] Typically, the lid and / or the reinforcing member are made of a polymer selected from the group comprising polyolefins, polyesters or styrene polymers.

[0020] When the lid and the reinforcing member are made of, for example, polyolefins, the weight of the lid / reinforcing member assembly will be greatly reduced.

[0021] In particular, the density of polypropylene is 0.9, while the density of a thermoplastic polymer such as acrylonitrile-butadiene-styrene (ABS) is 1.05.

[0022] Thus, for an equivalent amount of plastic, the weight of the lid / stiffening member assembly is lighter.

[0023] The observed weight reduction is between 15% and 50% compared to a packaging device having no stiffening member in the lid.

[0024] Moreover, thermoplastic plastics, in particular polyolefins, copolyesters such as polyethylene terephthalate (PET) or styrene polymers such as acrylonitrile-butadiene-styrene (ABS) or styrene-acrylonitrile (SAN) copolymers are highly recyclable and thus their use meets environmental requirements.

[0025] The lid and / or the stiffening member can thus be made of recyclable polyolefins, recyclable copolyesters such as polyethylene terephthalate (PET) or recyclable styrene polymers such as acrylonitrile-butadiene-styrene (ABS) or styrene-acrylonitrile (SAN) copolymers.

[0026] The lid and the stiffening member are advantageously made of the same material, so that they can be recycled together.

[0027] Advantageously, the stiffening element comprises a network of ribs or stiffening protrusions comprising at least one plurality of ribs extending along the elevation axis from one of the lid or the stiffening member towards the other one of the lid or the stiffening member.

[0028] The ribs of the network of ribs are advantageously connected to each other.

[0029] The stiffening member comprises a base, wherein the stiffening element extends along the elevation axis from an upper surface of the base towards a lower surface of the upper wall of the lid.

[0030] According to one embodiment, the stiffening element is integral with the base of the stiffening member.

[0031] In other words, the stiffening element and the base of the stiffening member form a single piece formed of a single material during a single molding operation.

[0032] According to one embodiment, the stiffening element is mechanically fixed, for example by ultrasonic welding, to the lid.

[0033] According to one embodiment, the upper end of each rib of the stiffening network of ribs is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the lower surface of the upper wall of the lid. As a variant, any other means of fixation can be provided, for example adhesive bonding or laser welding.

[0034] According to another embodiment, the stiffening element is integral with the lid. In this case, the lower end of each rib of the stiffening network of ribs is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the upper surface of the base of the stiffening member.

[0035] The network of reinforcing ribs forms a net comprising a plurality of contiguous shapes.

[0036] For example, the net comprises a plurality of contiguous polygonal shapes.

[0037] The net is advantageously symmetrical with respect to a median plane passing through the center of the reinforcing member.

[0038] The net can be a grid comprising a plurality of contiguous quadrilaterals, for example rectangles, squares or any other quadrilateral.

[0039] The term "grid" refers to a set of two sets of horizontal and vertical lines in a plane.

[0040] For example, the grid comprises a first set of substantially identical quadrilaterals and a second set of quadrilaterals arranged on each side of the first set, the second set of quadrilaterals having different dimensions.

[0041] The grid is advantageously symmetrical with respect to a median plane passing through the center of the reinforcing member.

[0042] For example, the net comprises a plurality of contiguous hexagons, for example in a honeycomb arrangement.

[0043] According to one embodiment, the network of reinforcing ribs comprises a central protrusion and a plurality of radial protrusions extending radially outward from the central protrusion.

[0044] The central protrusion has for example a closed or non-closed contour.

[0045] Advantageously, the radial protrusions are regularly spaced around the central protrusion.

[0046] As a variant, different arrangements of radial protrusions around the central protrusion can be provided.

[0047] The number of radial protrusions can be greater than or equal to four.

[0048] Purely by way of example, the radial protrusions can extend from the central protrusion to the contour of the base. As a variant, the radial protrusions can extend radially onto a portion of the base.

[0049] For example, the radial protrusions extend radially between the central protrusion and the contour of the base while being connected to the central protrusion. Such a configuration can be particularly advantageous when the reinforcing member is fixed to the cover by adhesive bonding.

[0050] As a variant, a space can be provided in the radial direction between each end of the radial protrusion and the central protrusion. This configuration can be particularly advantageous when the reinforcing member is fixed to the lid by ultrasonic welding, if the radial protrusion and the central protrusion are to be joined together, in which case, during this process, an unstable behavior of the material is liable to occur at the junction between the radial protrusion and the central protrusion.

[0051] It is also possible to provide only radial protrusions without central protrusions, or as a variant, only central protrusions without radial protrusions.

[0052] As a variant or in addition, the central protrusion and / or the radial protrusion(s) can also form part of the lid and extend along the elevation axis towards the reinforcing member.

[0053] Advantageously, the height of the reinforcing element is adjusted so that the outer surface of said reinforcing element has a shape that matches the shape of the inner surface of the upper wall of the lid.

[0054] For example, the height of the reinforcing element gradually increases towards the center of the reinforcing element, thereby forming a domed outer surface that follows the shape of the inner surface of the upper wall of the lid.

[0055] According to one embodiment, the device comprises a reflective surface mounted on the lower surface of the reinforcing member on the side opposite the reinforcing element.

[0056] According to one embodiment, the device comprises a support member mounted in the internal volume of the container and intended to receive at least one cosmetic product.

[0057] For example, the internal volume of the support member is intended to receive a disc comprising at least one compartment for a cosmetic product.

[0058] Further purposes, features and advantages of the application will become apparent from reading the following description, given solely by way of non-limiting example, and with reference to the attached drawings, in which:

[0059] [ Figure 1 ] shows a perspective view of a product packaging device according to one embodiment of the application in the closed configuration;

[0060] [ Figure 2 ] is Figure 1 a cross-sectional view on the median plane M of the device in

[0061] [ Figure 3 ] shows Figure 1 a cross-sectional view of the device in

[0062] [ Figure 4 ] isFigure 1 exploded perspective view of the device in

[0063] [ Figure 5 ] is a top view of the device in Figure 1

[0064] [ Figure 6 ] is a cross-sectional view along the line VI-VI of the reinforcing member in Figure 5

[0065] [ Figure 7 ] is a perspective view of a reinforcing member according to another embodiment;

[0066] [ Figure 8 ] is a cross-sectional view on the median plane PI of the reinforcing member of Figure 7

[0067] [ Figure 9 ] is a perspective view of a reinforcing member according to another embodiment;

[0068] [ Figure 10 ] is a cross-sectional view on the median plane P2 of the reinforcing member of Figure 9

[0069] [ Figure 11 ] shows a cross-sectional view of a support member of the device in Figure 1

[0070] [ Figure 12 ] shows a perspective view of a support member according to another embodiment.

[0071] Figures 1 to 4 A device 1 for packaging a product is presented.

[0072] By "product" is meant a cosmetic product, for example a finely ground compact solid product in the form of a compact powder, intended to be applied to the cutaneous surface of a user, for example. The compact powder can be a foundation, a face powder or an eye shadow, for example, picked up directly with the fingers or with a puff or with a brush. However, the invention is not limited to cosmetic products. Other types of products can also be provided, for example anhydrous paints.

[0073] In the remainder of the description, reference will be made to a standard orthonormal system X, Y, Z, in which Z corresponds to the elevation axis representative of the vertical direction. Figure 2 and Figure 3 The median section M in

[0074] The device 1 is, for example, a makeup case, and comprises a container 10 and a lid 20 hinged with respect to said container 10 between a closed position visible in Figure 2 and an open position visible in Figure 3 .​​​​​

[0075] As illustrated, the device 1 comprises a support member 30 or a tray intended for receiving at least one cosmetic product.

[0076] As a variant, it can be provided that the device 1 does not comprise a support member 30 and that the cosmetic product is placed directly in the container 10.

[0077] The device 1 further comprises a reinforcing member or insert 40 intended to be mounted in the lid 20, and a reflective wall 50, for example a mirror, rigidly fixed to the reinforcing member 40.

[0078] As a variant, it can be provided that the device 1 does not have a reflective wall 50.

[0079] The container 10 comprises a body of overall shape parallelpiped extending along an elevation axis Z-Z’ assumed to be vertical in the figures. The body can be provided with any other shape, for example cylindrical.

[0080] The body of the container 10 comprises an internal volume 11 for receiving a cosmetic product. The internal volume 11 is delimited by a lower wall 12 or bottom, which is substantially flat, and arranged in a plane XY containing a longitudinal axis X and a transverse axis Y, two side walls 13, a front wall 14 and a rear wall 15. Said side walls 13, front wall 14 and rear wall 15 form a generally square or rectangular profile. Other regular or irregular profile shapes are also possible, in particular circular, polygonal or oblong shapes.

[0081] The lid 20 is mounted on the support member 30 by a hinge comprising a same axis of rotation A1 parallel to the longitudinal axis X. As a variant, it can be provided that the lid 20 is mounted directly on the container 10, in particular on its rear wall 15, by a hinge.

[0082] The lid 20 comprises an internal volume 21 delimited by an upper wall 22, two side walls 23, a front wall 24 and a rear wall 25.

[0083] The rear wall 25 of the lid is rotatably mounted on said axis of rotation A1.

[0084] The front wall 24 of the lid 20 can comprise a retention member projecting in a continuation of said front wall along the vertical axis Z in the closed position of the lid. The retention member is intended to cooperate, for example by snap fit, with a corresponding retention member 17 of the container 10, in order to retain the lid on said container 10 in the closed position of said lid 20.

[0085] The lid 20 is movable between Figure 1 and Figure 2 the closed position illustrated and Figure 3The lid 20 is movable between a closed position, in which it cooperates with the container 10 and closes the access to the inner cavity 11, and an open position, in which it is pivoted about the axis Al away from the container 10 to allow access to the inner volume 11.

[0086] In the closed position, the lid 20 is arranged above the container 10.

[0087] The support member 30 is mounted in the inner cavity 11 of the container 10 and is intended to receive a tray (not shown) containing a cosmetic product. This tray forms an insert or complement which can be removed in order to replace or change the cosmetic product after it has been used up. When the tray is changed, the support member 30 is fixed in the container 10.

[0088] Because the support member 30 is separate from the container 10, two different materials can be used, namely a first material for the container 10 and a second material for the support member 30. The quality of the second material is lower than the quality of the material of the container 10. Thus, the density and therefore the price of the second material can be lower than the density and therefore the price of the first material, making it possible to obtain a support member which is cheaper and lighter than the container 10.

[0089] The support member 30 comprises an inner volume 31 for receiving a cosmetic product (not shown) contained in the tray. As shown, the inner volume 31 comprises a single compartment for receiving the tray. As a variant, it can be provided that the support member 30 comprises a plurality of compartments, for example four, each intended to receive a tray containing a cosmetic product as shown. Figure 12 The inner volume 31 of the support member 30 can be provided to comprise at least two separate compartments. It can also be provided that the (cosmetic) product(s) are contained directly in the container 10.

[0090] The support member 30 further comprises two housings 33, 34 for receiving accessories, for example brushes.

[0091] The two housings 33, 34 are respectively arranged on one side of the inner volume 31. As shown in Figure 4 and Figure 11 The housings 33, 34 respectively comprise a protrusion or central reinforcement 33a, 34a which protrudes outwardly from the bottom of the respective housing. This protrusion is generally produced during the molding, for example injection molding, of the material used to form the support member 30 and makes it possible to locally reinforce the support member 30.

[0092] As a variant, it can be provided that the support member 30 has only one housing for receiving an accessory or has no such housing.

[0093] The inner volume 31 of the support member 30 is delimited by a bottom wall 35 and a peripheral wall 36 forming a closed profile.

[0094] The reinforcing member 40 is mounted in the inner cavity 21 of the lid 20 and forms a block on which a reflective surface 50, for example a mirror, can be fixed.

[0095] Because the reinforcing member 40 is separate from the lid 10, two different materials can be used, i.e. the lid 20 in a first material and the reinforcing member 40 in a second material. The quality of the second material is lower than the quality of the material of the lid 20. Thus, the density and therefore the price of the second material can be lower than the density and therefore the price of the first material, enabling to obtain a reinforcing member 40 cheaper and lighter than the lid 20.

[0096] The reinforcing member 40 comprises a substantially flat base 41 axially delimited by an upper surface 41a and a lower surface 41b. The reinforcing member 40 further comprises a network of ribs 42 or reinforcing protrusions extending along a vertical axis Z from the upper surface 41a of the base 41 towards the lower surface 22a of the upper wall 22 of the lid 20.

[0097] The upper end of each rib 42a of the reinforcing network 42 is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the lower surface 22a of the upper wall 22 of the lid 20.

[0098] As a variant, the reinforcing network 42 can form part of the lid 20 and can extend along the elevation axis towards the reinforcing member 40. In this case, the lower end of each rib 42a of the reinforcing network 42 is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the upper surface 41a of the base 41 of the reinforcing member 40.

[0099] As shown in Figure 2 , Figure 3 and Figure 7 , the height of the ribs 42a of the reinforcing network 42 increases towards the center of the base 41, thereby following the shape of the inner surface 22a of the upper wall 22 of the lid 20 to form a domed outer surface 43.

[0100] Generally, the height of the ribs 42a of the reinforcing network 42 is adjusted so that the outer surface 43 of said reinforcing network 42 has a shape matching the shape of the inner surface 22a of the upper wall 22 of the lid 20.

[0101] The ribs 42a and the reinforcing member 40 form a single piece from a single material during a single molding operation.

[0102] As shown, the reinforcing network 42 forms a grid, i.e. a continuous rectangular arrangement. Generally, the grid comprises a plurality of consecutive quadrilaterals, for example rectangles, squares or any other quadrilateral.

[0103] As shown in Figure 5As shown, the grid comprises a first set of substantially identical rectangles and a second set of quadrilaterals arranged on each side of said first set. The quadrilaterals of the second set have different dimensions.

[0104] The first set of rectangles of the grid can be provided with different dimensions.

[0105] The grid is symmetrical with respect to a median plane passing through the center of the reinforcing member 40.

[0106] The term "grid" refers to a set of two horizontal and vertical lines in a plane.

[0107] Figure 7 and Figure 8 The embodiment shown differs from the embodiment of Figures 1 to 6 only in the shape of the rib network 42, wherein identical elements have identical reference numerals.

[0108] As shown in Figure 7 and Figure 8 The reinforcing member 40' comprises a substantially flat base 41 axially delimited by an upper surface 41a and a lower surface 41b. The reinforcing member 40' further comprises a rib network 42 or reinforcing protrusion extending along a vertical axis Z from the upper surface 41a of the base 41 towards the lower surface 22a of the upper wall 22 of the lid 20.

[0109] The reinforcing rib network 42 of the reinforcing member 40' further comprises a central protrusion 42a having a closed profile extending along the vertical axis Z from the upper surface 41a of the base 41 towards the lower surface 22a of the upper wall 22 of the lid 20. The upper end of said central protrusion 42a is mechanically fixed, for example by ultrasonic welding, to the lower surface 22a of the wall 22 of the lid 20. As a variant, the reinforcing rib network 42 can form part of the lid 20 and can extend along the elevation axis towards the reinforcing member 40'. In this case, the lower end of the central protrusion 42a of the reinforcing rib network 42 is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the upper surface 41a of the base 41 of the reinforcing member 40'.

[0110] As a variant, a central protrusion having a non-closed profile can be provided.

[0111] The reinforcing member 40' further comprises a plurality of radial protrusions 42b extending radially outward from the central protrusion 42a.

[0112] The radial protrusions 42b extend along the vertical axis Z from the upper surface 41a of the base 41 towards the lower surface 22a of the upper wall 22 of the lid 20.

[0113] The upper end of each of the radial protrusions 42b is mechanically fixed, for example by ultrasonic welding, to the lower surface 22a of the wall 22 of the lid 20.

[0114] As shown in the figure, the radial protrusions 42b are regularly spaced around the central protrusion 42a. As a variation, different arrangements of the radial protrusions 42b around the central protrusion 42a can be provided.

[0115] As shown, the number of radial protrusions 42b is equal to 24. As a variation, a different number of radial protrusions can be provided, for example, more than or equal to four.

[0116] By way of example only, the radial protrusion 42b extends from the central protrusion 42a to the outline of the base 41. As a variation, the radial protrusion 42b may extend radially to a portion of the base 41.

[0117] like Figure 8 As shown, the height of the radial protrusions 42 of the reinforcing rib network 42 increases toward the central protrusion 42b arranged at the center of the base 41, thereby forming a dome outer surface 43 that follows the shape of the inner surface 22a of the upper wall 22 of the cover 20.

[0118] Typically, the height of the radial protrusions 42b of the reinforcing rib network 42 is adjusted such that the outer surface 43 of the reinforcing rib network 42 has a shape that matches the shape of the inner surface 22a of the upper wall 22 of the cover 20.

[0119] Especially in Figure 7 and Figure 8 In the illustrated embodiment, the radial protrusion 42b extends radially between the central protrusion 42a and the contour of the base 41 while connecting to the central protrusion 42a. This configuration may be particularly advantageous when the reinforcing member is fixed to the cover by adhesive bonding.

[0120] As a variation, on the one hand, space can be provided in the radial direction between each end of the radial protrusion 42b and the central protrusion 42a. This configuration may be particularly advantageous when the reinforcing member 40' is fixed to the cover 20 by ultrasonic welding, in which case unstable material behavior is likely to occur at the joint between the radial protrusion and the central protrusion if the radial protrusion 42b is to be connected to the central protrusion 42a.

[0121] Alternatively, only radial protrusions can be set without central protrusions, or as a variant, only central protrusions can be set without radial protrusions.

[0122] As a variation or supplement, a central protrusion and / or one or more radial protrusions may also be provided to form part of the cover 20 and extend along the elevation axis toward the reinforcing member 40'.

[0123] The central protrusion 42a, the radial protrusions 42a and the reinforcement member 40' form a single piece formed of a single material during a single molding operation.

[0124] In Figure 9 and Figure 10 the embodiment shown, the same elements have the same reference numerals, the reinforcement member 40" differs from the reinforcement member 40 shown in Figures 2 to 6 only by the shape and the arrangement of the reinforcing protrusions.

[0125] The reinforcement member 40" comprises a substantially flat base 41 axially delimited by an upper face 41a and a lower face 41b. The reinforcement member 40" further comprises a network of ribs 42 or reinforcing protrusions extending along the vertical axis Z from the upper face 41a of the base 41 towards the lower face 22a of the upper wall 22 of the lid 20.

[0126] The upper end of each rib 42a of the network of reinforcing ribs 42 is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the lower face 22a of the upper wall 22 of the lid 20.

[0127] As a variant, the network of reinforcing ribs 42 can form part of the lid 20 and can extend along the elevation axis towards the reinforcement member 40". In this case, the lower end of each rib 42a of the network of reinforcing ribs 42 is mechanically fixed or rigidly fixed, for example by ultrasonic welding, to the upper face 41a of the base 41 of the reinforcement member 40".

[0128] As shown in Figure 10 the height of the ribs 42a of the network of reinforcing ribs 42 increases towards the center of the base 41, thereby following the shape of the inner face 22a of the upper wall 22 of the lid 20 to form a domed outer face 43.

[0129] Generally, the height of the ribs 42a of the network of reinforcing ribs 42 is adjusted so that the outer face 43 of said network of reinforcing ribs 42 has a shape matching the shape of the inner face 22a of the upper wall 22 of the lid 20.

[0130] The ribs 42a and the reinforcement member 40" form a single piece formed of a single material during a single molding operation.

[0131] As shown, the network of reinforcing ribs 42 forms a mesh, i.e. a continuous arrangement of shapes.

[0132] As shown, the mesh comprises a plurality of continuous polygonal shapes, in this case hexagons. As a variant, a continuous circular arrangement can be provided.

[0133] Preferably, the polygons of the mesh are substantially identical. The elements in the mesh can have different sizes.

[0134] In this case, the web has a honeycomb shape.

[0135] The web is symmetrical with respect to a median plane passing through the centre of the reinforcing member 40".

[0136] It is noted that the present application is not limited to the shape of the protrusions of the reinforcing rib network. In particular, other shapes can be provided, such as circular, polygonal, radial, protrusions with a closed profile, protrusions with an open profile, or a combination of protrusions of different shapes.

[0137] In general, the packaging device 1 comprises a reinforcing element formed by at least one protrusion extending from a base of the reinforcing member 40, 40', 40" along a vertical axis Z towards a lower surface 22a of an upper wall 22 of the lid 20 and mechanically fixed to said surface 22a so as to form a mechanical connection between said reinforcing member and said lid.

[0138] The lid 20 and / or the reinforcing member 40, 40', 40" can be made of plastic, for example polyolefin, such as polypropylene (PP), high-density or low-density polyethylene (HDPE, LDPE) or linear low-density polyethylene (LLDPE).

[0139] The lid 20 and / or the reinforcing member 40, 40', 40" can also be made of polyethylene terephthalate (PET) or another copolyester, or even a thermoplastic polymer, such as acrylonitrile-butadiene-styrene (ABS) or styrene-acrylonitrile (SAN) copolymer or another styrene material.

[0140] When the lid 20 and the reinforcing member 40, 40', 40" are made of polyolefin, the weight of the lid / reinforcing member assembly will be greatly reduced. In particular, the density of polypropylene is 0.9, while the density of a thermoplastic polymer such as acrylonitrile-butadiene-styrene (ABS) is 1.05.

[0141] Thus, for an equivalent amount of plastic, the lid / reinforcing member assembly is lighter.

[0142] Furthermore, polyolefins are recyclable, so the use of polyolefins complies with environmental requirements.

[0143] The lid 20 and / or the reinforcing member 40, 40', 40" can thus be made of recycled polyolefins.

[0144] The lid 20 and the reinforcing member 40, 40', 40" are advantageously made of the same material, so that they can be recycled together.

[0145] According to the present application, in particular the reinforcing ribs, it is possible to significantly reduce the wall thickness of the lid, thus reducing the overall weight of the product packaging device.

Claims

1. A device (1) for packaging a cosmetic product, comprising: - a container (10) extending along an elevation axis (Z-Z') and comprising an internal volume (11); - a lid (20) hinged with respect to the container (10) between a closed position in which it cooperates with the container (10) and closes access to the internal volume (11) of the container (10) and an open position in which it is pivoted away from the container (10) to allow access to the internal volume (11), the device comprising a stiffening member (40, 40', 40'') mounted in the lid (20) and one of the stiffening member (40, 40', 40'') or the lid (20) comprising at least one stiffening element (42) extending along the elevation axis (Z-Z') from one of the stiffening member (40, 40', 40'') or the lid (20) towards the other of the lid (20) or the stiffening member (40, 40', 40'') and rigidly fixed to the other of the lid (20) or the stiffening member (40, 40', 40''), characterized in that the stiffening element (42) comprises a network of stiffening ribs (42a, 42b) comprising at least one plurality of ribs (42a, 42b) extending along the elevation axis (Z-Z') from an upper surface (41a) of a base (41) of the stiffening member (40, 40', 40'') towards a lower surface (22a) of an upper wall (22) of the lid (20), wherein an upper end of each rib (42a, 42b) of the network of stiffening ribs (42a, 42b) is mechanically fixed to the lower surface (22a) of the upper wall (22) of the lid (20), or wherein the stiffening member is integral with the lid, the network of stiffening ribs comprising at least one plurality of ribs extending along the elevation axis (Z-Z') from a lower surface (22a) of an upper wall (22) of the lid (20) towards an upper surface (41a) of a base (41) of the stiffening member (40, 40', 40''), wherein a lower end of each rib (42a, 42b) of the network of stiffening ribs (42a, 42b) is mechanically or rigidly fixed to the upper surface (41a) of the base (41) of the stiffening member (40, 40', 40'').

2. The device (1) according to claim 1, wherein The lid (20) and / or the stiffening member (40, 40', 40'') are made of a polymer selected from the group comprising polyolefins, polyesters or styrene polymers.

3. The device (1) according to claim 1, wherein, The stiffening element (42) is integral with the base (41) of the stiffening member (40, 40', 40'').

4. The device (1) according to claim 1, wherein The stiffening element (42) is fixed to the lid (20) by ultrasonic welding.

5. The device (1) according to any one of claims 1 to 4, wherein, The network of stiffening ribs (42) forms a mesh comprising a plurality of continuous shapes.

6. The device (1) according to claim 5, wherein The mesh comprises a plurality of continuous polygonal shapes.

7. The device (1) according to claim 5, wherein The mesh is symmetrical with respect to a median plane passing through the center of the stiffening member (40, 40', 40'').

8. The device (1) according to claim 5, wherein The mesh comprises a plurality of contiguous quadrilaterals.

9. The device (1) according to claim 8, wherein The mesh comprises a first set of substantially identical quadrilaterals and a second set of quadrilaterals arranged on each side of the first set, the second set of quadrilaterals having different sizes.

10. The device (1) according to claim 5, wherein, The mesh comprises a plurality of contiguous hexagons.

11. The device (1) according to any one of claims 1 to 4, wherein, The reinforcement rib network (42) further comprises a central protrusion (42a) and a plurality of radial protrusions (42b) extending radially outward from the central protrusion (42a).

12. The device (1) according to claim 11, wherein The radial protrusions (42b) are regularly spaced around the central protrusion (42a).

13. The device (1) according to claim 1, wherein, The height of the reinforcement element (42) is adjusted so that the outer surface (43) of said reinforcement element (42) has a shape matching the shape of the inner surface (22a) of the upper wall (22) of the lid (20).

14. The device (1) according to claim 13, wherein The height of the reinforcement element (42) gradually increases towards the center of the reinforcement member (40, 40', 40").

15. The device (1) according to claim 1, comprising a reflective surface (50) mounted on the lower surface (41b) of the reinforcement member (40, 40', 40") on the side opposite the reinforcement element (42).

16. The device (1) according to claim 1, comprising a support member (30) mounted in the internal volume (11) of the container (10) and intended to receive at least one cosmetic product.

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