Cover for cosmetic product packaging device

Abstract

The invention relates to a cover (22) for a cosmetic product packaging device (10), suitable for being attached to a packaging case (12), which comprises a hollow body (24), the hollow body (24) comprising first resilient interlocking reliefs (40), and a decorative part (28) comprising at least one face (F28) intended to be oriented away from the packaging case (12), with a decoration (48) and second resilient interlocking reliefs (56). The decorative part (28) is attached to the hollow body (24) so as to block an opening (26) of the hollow body (24), by resilient interlocking of the first and second resilient interlocking reliefs (40; 56). The resilient interlocking of the first and second resilient interlocking reliefs (40; 56) is removable without damaging the hollow body (24) or the decorative part (28).

Description

Domaine technique

[0001] This disclosure relates to the field of cosmetic product packaging devices. Technique antérieure

[0002] Users are particularly sensitive to the aesthetics of cosmetic packaging devices. However, users are looking for a personalized offering, including customizable aesthetics for packaging devices. Users also want to be able to adapt the customization of their cosmetic containers to suit their desires, throughout the lifetime of the cosmetic packaging device. Users therefore want the ability to remove a customization element and replace it with another, without having to purchase a new cosmetic packaging device.

[0003] An aim of the present invention is thus to propose a cover for a cosmetic product device which is easily customizable, without compromising the aesthetics of the cover in question.

[0004] It is known, in the field of beverage containers, far removed from the field of cosmetic products, to fix a means of personalization on a cap by means of a screw, as described in application US 2010 / 0187196 A1.

[0005] Application US 2012 / 0138563 A1, also in the field of beverage containers, proposes attaching a personalization element to a cap, to avoid confusing the containers of two different owners. The personalization element may take the form of a plate inserted into a corresponding housing at the top of the cap. According to another embodiment provided in this document, the personalization element takes the form of a flexible covering element, unrolled over the cap.

[0006] EP2954800A describes a hood with decoration.

[0007] These solutions do not present a degree of aesthetics adapted to the technical field of cosmetic product packaging devices. Résumé

[0008] This disclosure improves the situation.

[0009] The present disclosure provides a cover for a device for packaging at least one cosmetic product, the cover being adapted to be fixed on a cosmetic product packaging case, the cover comprising: a hollow body extending mainly in a longitudinal direction, comprising a first longitudinal end, defining a first outlet and intended to be oriented towards the housing of the packaging device, and a second longitudinal end, defining an outlet, opposite the first longitudinal end, the hollow body comprising at least one first elastic fitting relief, and a decorative part, the decorative part comprising at least one face intended to be oriented in a direction opposite the packaging housing, with a decoration, and at least one second elastic fitting relief, the decorative piece being fixed to the hollow body so as to block the second outlet of the hollow body, by elastic fitting of the at least one first and at least one second elastic fitting reliefs, the elastic fitting of the at least one first and at least one second elastic fitting reliefs being removable without damaging the hollow body or the decorative piece.

[0010] According to preferred embodiments, the hood for a packaging device may have one or more of the following characteristics, taken alone or in combination: the hollow body comprises a cap, defining an internal cavity, and an insert fixed inside the cap; the insert has a general shape of a sleeve extending in the longitudinal direction between a first longitudinal end of the insert and a second longitudinal end of the insert, the first longitudinal end of the insert being intended to be oriented towards the first longitudinal end of the hollow body or forming the first longitudinal end of the hollow body, the second longitudinal end of the insert preferably being solid with, more preferably, at least one through opening in the longitudinal direction;the cap is fixed on the insert by elastic fitting of at least one third elastic fitting relief of the cap with at least one fourth elastic fitting relief of the insert, the at least one third elastic fitting relief being on an internal face of the cap, the at least one fourth elastic fitting relief preferably being on an external surface of the insert; the insert has a means for fixing the cover on the housing of the packaging device, in particular at least one relief for fixing the cover on the housing, such as at least one elastic fitting relief, a thread or a diameter allowing adjusted or even tight mounting; the at least one first elastic fitting relief is formed by the cap; the at least one first elastic fitting relief is formed by the insert; the at least one first elastic fitting relief is formed on an external face of the insert;the at least one first elastic fitting relief is formed by at least one bead, the at least one second elastic fitting relief being formed by at least one elastically deformable tab extending from a face of the decorative piece, opposite the at least one face with a decoration; the at least one face with a decoration of the decorative piece is substantially flat; the at least one face with a decoration of the decorative piece is flush with the second end of the hollow body; the decorative piece comprises a decorative plate and a support plate for the decorative plate, the decorative plate being fixed, in particular glued, to the support plate; the cover comprises a clearance between the decorative piece and the second end of the hollow body, the clearance preferably being less than or equal to 1 mm, more preferably less than or equal to 0.5 mm, even more preferably less than or equal to 0.2 mm;each first elastic fitting relief comprises a first surface in contact with a second surface of an associated second elastic fitting relief, each first or second surface extending in a plane which forms an angle with the longitudinal direction, the angle preferably being greater than or equal to 30°, more preferably greater than or equal to 40°, and / or less than or equal to 60°, more preferably less than or equal to 50°; the at least one first elastic fitting relief and the at least one second elastic fitting relief are shaped to allow disassembly of the decorative part from the hollow body, by pushing on one of the decorative part and the hollow body in the longitudinal direction, the thrust preferably being between 10 N and 50 N;the decoration comprises at least one of: -- a color, in particular distinct from the color of the hollow body or the cap, where applicable, -- a pattern, -- at least one pellet made of a material or imitating the appearance of a material, -- a trademark, in particular a logo, and -- a hollow or protruding relief; the cap is a stopper; the hollow body is secured to a stem, an application element being arranged at one end of the stem opposite the hollow body; and the decorative part comprises a guide relief on a face opposite the at least one face with decoration, received in a complementary housing in the hollow body, in particular in the cap or the insert, where applicable. ;

[0011] According to another aspect, a device for packaging at least one cosmetic product is described, comprising a housing defining a volume for receiving at least one cosmetic product, and a cover as described above, in all its combinations, fixed to the housing.

[0012] The case may in particular be a bottle with a neck, preferably fitted with a pump, the cap being a stopper suitable for being fixed to the neck of the bottle.

[0013] Alternatively, the case may be a lipstick body, receiving a lipstick mechanism.

[0014] According to another aspect, there is described a tool for removing a decorative piece from a hood as described above in all its combinations, from the hollow body of the hood, the tool comprising a relief adapted to be received in the hollow body of the hood so as to be in contact with a face of the decorative piece, opposite the at least one face with a decoration, and to allow a push on the decorative piece.

[0015] Preferably, the tool comprises one or more of the following features, taken alone or in combination: - the tool further comprises a housing for receiving the cover, the relief of the tool protruding from a bottom of the housing; - the second longitudinal end of the insert being solid with at least one through opening in the longitudinal direction, the relief extending in a longitudinal direction, a longitudinal end of the relief of the tool having at least one positioning tab and dimensions adapted to be in contact with the face of the decorative part, opposite the at least one face with a decoration, through the at least one through opening in the insert and to allow a push on the face of the decorative part, opposite the at least one face with a decoration, as long as the hollow body of the cover is not in contact with the bottom of the housing, if applicable;- the height of the legs, measured in the longitudinal direction, is such that the legs push on the decorative part over a relative travel of the hollow body with respect to the tool, at least equal to the height of the first elastic fitting reliefs; - the relief of the tool has a cylindrical rod adapted to pass through all or part of the hollow body of the cover; and - the tool is shaped to allow the cover to be positioned on the tool in a finite number of angular positions.

[0016] According to yet another aspect, there is described an assembly of a cover for a cosmetic product packaging device, as described above in all its combinations, and of a tool, as described above, in all its combinations, adapted to allow the removal of the decorative part from the hollow body.

[0017] Finally, a method is described for removing a decorative part from a hood as described above in all its combinations, by means of a tool as described above, in all its combinations, the method comprising the steps of: place the hood on the tool; exert a relative thrust of the hood towards the tool, in the longitudinal direction. Brève description des dessins

[0018] Other features, details and advantages will become apparent upon reading the detailed description below, and upon analyzing the attached drawings, in which: There figure 1 shows an example of a perfume packaging device. The figure 2 is an exploded view of the perfume packaging device of the figure 1 . There figure 3 is an exploded view of the cap of the packaging device figures 1 And 2 . There figure 4 is a longitudinal sectional view of the plug insert of the figure 3 . There figure 5 is a sectional view of the support plate of a decorative part of the cap of the figure 3 . There figure 6 is a perspective view of the underside of the support plate of the figure 5 . There figure 7 is a sectional view along a first section plane VII-VII, of a portion of the packaging device figures 1 And 2 . There figure 8 is a sectional view along a second section plane VIII-VIII, of a portion of the packaging device figures 1 And 2 . There figure 9 represents an enlargement of a detail of the figure 8 . There figure 10 represents a sectional view of a tool that can be used to remove a decorative piece from the cap of the figure 3 . There figure 11 represents a perspective view of an assembly formed by the stopper fitted with a decorative piece of the figure 3 and the tool of the figure 10 , suitable for use in removing the decorative piece from the cap. The figure 12 illustrates by a sectional view, a first stage of the removal of the decorative piece from the cap of the figure 3 , with the tool of the figure 10 . There figure 13 illustrated by a sectional view, according to the same section plane as the figure 12 , a later step of removing the decorative piece from the cap of the figure 3 , using the tool of the figure 10 . Description des modes de réalisation

[0019] In the remainder of the description, elements that are identical or have the same function bear the same reference symbol. For the sake of brevity in this description, elements that are identical in several examples are not described in detail within the context of the detailed description of each of these examples. On the contrary, the following description primarily details the differences between the different examples.

[0020] There figure 1 illustrates an example of a device 10 of packaging a cosmetic product. Here, the packaging device 10 has a case 12, in the form of a bottle 12a. The bottle 12a contains a liquid cosmetic product, for example a perfume or eau de toilette.

[0021] The bottle 12a extends mainly in a longitudinal direction, in this case the direction of an axis A. In the following, we call the axis A, "the axis A of the bottle 12a " The bottle 12a is for example rotationally symmetric around the axis A of the bottle 12a, or even with symmetry of revolution around the axis A of the bottle 12a.

[0022] The bottle 12a here includes a bottle body 14, forming a collar 16. At the end of the pass 16, the bottle 12a has a fret 17,fixing a body 18 of a pump device 19 on the bottle body 14, especially on the pass 16 of the bottle 12a. The fret 17 is for example screwed onto the neck 16 of the bottle 12a. The pump device 19 also has a button 20 mobile in translation relative to the pump body 18, to operate the pump device 19. A dress skirt 21 covers the fret 17. The dress skirt 21 has an essentially aesthetic function.

[0023] The packaging device 10 also includes a hood 22. Here, the hood 22 takes the form of a cork 22a.

[0024] As seen in the figures, the cap 22a has a shape with rotational symmetry around an axis A1 of the cork 22a, corresponding to the axisA of the bottle 12a when the cork 22a is fixed on the bottle 12a.

[0025] As visible on the figures 2 And 3 , for example, the cork 22a includes here a hollow body 24, defining an internal cavity 26 opening at an upper end of the hollow body, and a decorative piece 28 at least partially closing the internal cavity 26.

[0026] In the illustrated example, the hollow body 24 includes a headdress 30, defining the internal cavity 26, and an insert 32 fixed inside the headdress 30 in the internal cavity 26.

[0027] The headdress 30 has essentially a dressing function. The headdress 30 has a general shape with rotational symmetry around the axis A1 of the cork 22a.

[0028] The internal cavity26 in the headdress 30 can be divided into two parts: - the lower part is designed to essentially accommodate the skirt 21 surrounding the fret 17 pump body fixing 18 on the collar 16 of the bottle 12a. This lower part is for example cylindrical, with a substantially circular section; - the upper part forms a housing 26a opening at the upper end of the hollow body 24, adapted to receive the upper end of the button 20 of the pump device 19 and the upper end of the insert 32. Here, the accommodation 26a is square in section with cut corners. At each cut corner a groove is formed 29, extending parallel to the axis A1 of the cork 22a.

[0029] As is particularly visible in the figures 8 And 9 , the headdress30 has reliefs 34 protruding into the internal cavity 26. Here, the salient reliefs 34 are located approximately at the boundary between the lower and upper parts 26a of the internal cavity 26. The reliefs 34 salient points extend substantially perpendicular to the direction of the axis A1 of the cork 22a. Here, the reliefs 34 protrusions extend substantially in a radial direction relative to the axis A1 of the cork 22a.

[0030] As visible on the figure 9 in particular, in a section plane including the axis A1 of the cork 22a, a surface S34 upper part of each relief 34 forms an angle a34 substantially straight with the axis A1 of the cork 22a. For example, the angle a34 between the surface S34 of each relief 34 and the axis A1of the cap is greater than or equal to 60°, preferably greater than or equal to 70°, and / or less than or equal to 120°, preferably less than or equal to 110°. Here, the angle a34 is equal to 75°. As shown above, the angle a34 can be obtuse.

[0031] Moreover, as is visible in particular on the figures 3 And 4 , the insert 32 has a general socket shape. In other words, the insert 32 has a generally cylindrical, hollow shape, with an axis A2 corresponding to the axis A1 of the cork 22a when the insert 32 is fixed in the cap 22a. A first end 32a of the insert 32 is empty or hollow. A second end 32b, opposite the first end 32a, is mostly full. Here, this second end 32b is a solid face comprising four openings 35crossing the solid face. The four openings 35 here have the form of angular sections of the same ring, with axis the axis A2 of the insert 32. The four openings 35 are here regularly distributed around the axis A2 of the insert 32.

[0032] The insert 32 has a collar 36 at its first end 32a. The collar 36 forms a dwelling here 38 suitable for covering a collar 39 of the dressing skirt 21 of the fret 17. In one embodiment, the collar 36 can be magnetized to ensure the cap is fixed 22a on the collar 16 of the bottle 12a. Here, however, the fixing of the cap 22a on the bottle 12a is achieved by friction of the insert 32 on the dressing skirt 21 of the fret 17. Flat spots46 longitudinal can be provided on the internal face of the insert 32 in order to adjust the friction between the insert 32 and the dressing skirt 21 of the fret 17.

[0033] Alternatively, the cap 22a can be fixed on the bottle 12a by screwing or elastic fitting, in particular by snap-fastening.

[0034] Furthermore, the insert 32 shape of the elastic casing reliefs 40 on the substantially cylindrical surface of the insert 32. Elastic casing reliefs 40 here take the form of bulges, arranged longitudinally near the second end 32b of the insert 32. The insert 32 as illustrated includes four such elastic fitting reliefs 40. The insert 32 may however include more or less elastic casing reliefs 40,including at least one elastic casing relief 40 or at least two elastic fitting reliefs 40, preferably at least three elastic fitting reliefs 40. Elastic casing reliefs 40 are preferably regularly distributed angularly around the axis A2 of the insert 32.

[0035] As is particularly visible on the figure 4 , each elastic casing relief 40 here presents a lower surface S40, oriented towards the first end of the insert 32, forming an angle a40 not flat and not straight with the axis A2 of the insert 32. For example, in a section plane of the insert 32 including the axis A2 of the insert 32 illustrated in the figure 4 , the angle a40 between the lower surface S40 of a bulge 40 and the axis A2is greater than or equal to 30°, preferably greater than or equal to 40° and / or less than or equal to 60°, preferably less than or equal to 50°. Here, for example, the angle a40 is approximately equal to 45°. As shown above, the angle a40 is preferably acute.

[0036] Each surface S40 has a height h40 measured along the direction of the axis A2 of the insert 32.

[0037] The insert 32 still has a surface 41 connecting the upper end of the surfaces S40 at the second end 32b longitudinal of the insert 32, which is cylindrical with a circular or even slightly truncated section, such that the diameter of this surface 41 decreases from the upper end of the surfaces S40 towards the second end 32b longitudinal of the insert 32.In a longitudinal section plane, including the axis A2 of the insert 32, the angle between the surface 41 and the axis A2 is thus for example greater than 0°, and / or less than or equal to 10°, preferably less than or equal to 5°. Alternatively, the surface 41 is of axis the axis A2 of the insert 32. The upper end of surface 41 may be rounded, when viewed in section.

[0038] The insert 32 also forms spurs 42 on the radially external face. The insert 32 as illustrated includes four such lugs 42. The insert 32 may however have more or less spurs 42, including at least one or two spurs 42, preferably at least three spurs 42. The spurs 42 are preferably regularly distributed angularly around the axis A1 of the cork 22a.

[0039] Each spur 42 protrudes from the cylindrical portion of the insert 32, radially outwards. Each lug 42 has a shape extending mainly circumferentially over the cylindrical portion of the insert 32.

[0040] As is particularly visible on the figure 4 , each spur 42 here has a triangular cross-section, the lower surface of which S42 forms a roughly right angle with the axis A2 of the insert 32. For example, in a section plane of the insert 32 including the axis A2 of the insert 32, the angle a42 between the lower surface S42 and the axis A2 of the insert 32 is greater than or equal to 60°, preferably greater than or equal to 70°, and / or less than or equal to 120°, preferably less than or equal to 110°. The angle a42 from the surface S42is preferably substantially equal to the angle a34 from the surface S34 upper part of each relief 34 of the headdress 30. Here, the angle a42 is equal to 75°. As shown above, the angle a42 can be obtuse.

[0041] Finally, the insert 32 presents here on its cylindrical portion, longitudinal ribs 44, extending longitudinally, over only a portion of the radially external surface of the insert 32. More precisely, the insert 32 has pairs of such longitudinal ribs 44. In particular, in the illustrated example, the insert 32 present four pairs of longitudinal ribs 44, regularly distributed on the radially external surface of the cylindrical portion of the insert 32.

[0042] Remarkably, an opening 35 and a bead 40are aligned along the axis direction A2 of the insert 32. Likewise, a spur 42 and a pair of longitudinal ribs 44 are here aligned according to the direction of the axis A2 of the insert 32. According to the particular embodiment shown in the figures, an opening 35, a roll 40, a spur 42 and a pair of longitudinal ribs 44 are aligned along the axis direction A2 of the insert 32.

[0043] As is particularly visible on the figure 8 , the headdress 30 is fixed here on the insert 32 by elastic fitting of the reliefs 34 headdress protrusions 30 with spurs 42 of the insert 32. To do this, the insert is introduced 32 in the headdress 30, this introduction being guided by the reception of the longitudinal ribs 44of the insert 32 in complementary grooves 47 in the headdress 30. This indexes the position of the insert 32 compared to the headdress 30. In other words, the insert 32 cannot be introduced into the headdress 30 than in a finite and restricted number of relative angular positions. Here, these relative angular positions are four in number. The insert 32 is then pushed into the cap 30 up to the elastic fitting of the reliefs 34 headdress protrusions 30 with spurs 42 of the insert 32.

[0044] It should be noted here that due to the angles a34, a42 substantially straight between the surfaces S34, S42 prominent reliefs 34 and spurs 42, which cooperate to ensure the fixation of the insert 32 in the headdress 30, and the direction of insertion of the insert 32in the headdress 30, which is parallel to the axis A1 of the cork 22a, the elastic fitting of the insert 32 in the headdress 30 is permanent. In other words, it is very difficult or even impossible to remove the insert 32 of the headdress 30, without damaging either of these two parts, in particular the protruding reliefs 34 of the headdress 30 and / or spurs 42 of the insert 32. This disassembly of the insert 32 compared to the headdress 30 is made all the more difficult by the reliefs 34 protrusions and spurs 42, if only by their shape, have a relatively high rigidity.

[0045] Fixing the insert 32 in the headdress 30 by elastic fitting appears to be particularly easy to produce, requiring no additional parts, and durable.

[0046] Of course, the insert 32 can be fixed in the headdress 30 by means other than an elastic fit. In particular, the insert 32 can be glued into the headdress 30. Alternatively or in addition, the insert 32 can be force-fitted into the cap 30 and be held there by friction.

[0047] The following describes the set piece in more detail. 28.

[0048] As visible on the figures 2 And 3 , the piece of decor 28 includes one side F28, facing outwards from the cap 22a, equipped with a decoration 48.

[0049] The decor 48 of the decorative piece 28 can in particular be chosen from: - a color, in particular distinct from the color of the hollow body 24, especially the headdress 30,- a pattern, in particular imitating a material - at least one pellet made of a material or imitating the appearance of a material, - a trademark, in particular a logo, - a hollow or protruding relief.

[0050] As is particularly visible on the figure 3 , the piece of decor 28 illustrated consists of a decorative plate 50, forming the face F28 equipped with the decor 48, and a support plate 52. The creation of the set piece 28 in at least two separate pieces is preferred because it allows for a greater variety of decorative plates 50, this one having only an aesthetic function. In particular, the decorative plate can be made from a greater variety of materials in this case. The support plate 52 then ensures the fixing of the decorative piece 28 on the insert 32 as will be described in more detail later.

[0051] Here, the decorative plate 50 is flat.

[0052] The decorative plate 50 is fixed on the support plate 52. For example, the decorative plate 50 is glued to the support plate 52. Other ways of fixing the decorative plate 50 on the support plate 52 are however possible. For example, the decorative plate 50 can be mounted tightly in a frame formed by the support plate 52.

[0053] The support plate 52 is notably illustrated in figures 5 And 6 .

[0054] As seen in these figures, the support plate 52 extends essentially perpendicular to an axis A3, median of the support plate 52, intended to match the axis A1 of the cork 22a when the piece of decor 28 is fixed in the cap 22a.

[0055] The support plate 52 has a substantially flat face, on which the decorative plate 50 is intended to be fixed.

[0056] The support plate 52 also has legs 54 whose free end has a hook shape 56. For example, in a sectional plane of the support plate 52, including the axis A3 normal to the support plate 52, the angle a56 between the upper surface S56 hooks 56 and the axis A3 normal to the support plate 52, is greater than or equal to 30°, preferably greater than or equal to 40° and / or less than or equal to 60°, preferably less than or equal to 50°. Preferably the angle a56 of the upper surface S56 equal to the angle a40 between the lower surface S40 of a bulge 40 of the insert 32 and the axis A2 of the insert 32.Here, for example, the angle a56 is approximately equal to 45°. As shown above, the angle a56 is preferably acute.

[0057] The support plate 52 also includes a tab 57. The tab 57 extends here from an angle of the support plate 52. The tab 57 extends along a main direction of extension parallel to the axis A3 normal to the support plate 52. The tab 57 is here substantially parallelepiped.

[0058] The support plate 52 also has through holes 58. Here, the holes through 58 are four in number. Each through hole 58 has a general shape of an angular sector of the same ring. The through holes 58 are regularly distributed angularly around the axis A3 normal to the support plate 52.Through holes 58 are equidistant from the center of the support plate 52. Through holes 58 can in particular allow excess glue to be removed from between the support plate 52 and the decorative plate 50 and / or to facilitate the molding of the support plate 52, including the casting of the legs 54 described below. Regarding the excess glue between the support plate 52 and the decorative plate 50, at least one of these plates 50, 52, including the support plate 52 may include recesses to accommodate at least some excess glue.

[0059] Edges protrude from the support plate 52, on its face opposite to its face intended to receive the decorative plate 50, from the radially inner edge of the through holes 58, each edge thus forming a crest 60. The ridges60 for example, have a height h60, measured along the direction of the axis A3 normal to the support plate 52 from the surface of the support plate 52 from which they protrude, substantially equal to the height of the openings 35 in the insert 32. So the ridges 60 are suitable for being received in openings 35 to partially block them, without extending beyond these openings 35.

[0060] As is particularly visible on the figures 8 And 9 , the piece of decor 28 is fixed on the insert 32 by elastic fitting of the hooks 56 legs 54 of the support plate 52 with the first elastic casing reliefs 34 in the form of beads, of the insert 32. The tab 57 of the support plate 52 can be received in accommodation 29complementary to the headdress 30, to guide the insertion, along a rectilinear trajectory, of the decorative piece 28 in the internal cavity 26 defined by the cap 30.

[0061] Once the set piece 28 fixed on the insert 32, the ridges 60 of the support plate 52 extend inside the openings 35 of the insert 32. However, the ridges 60 do not protrude from the openings 35 of the insert 32, towards the first end 32a of the insert 32.

[0062] Moreover, as can be seen on the figures 8 And 9 in particular, once the piece of decor 28 fixed on the insert 32, this is entirely received in the internal cavity 26 of the headdress 30. In other words, the surface forming the face F28of the decorative piece 28 is preferably flush or even slightly set back from the upper end of the cap 30. Thus, removal or attempted removal of the decorative piece is prevented by pressing on a portion of an edge of the decorative piece. 28 which would protrude from the headdress 30, in the direction of the axis A1 of the cork 22a.

[0063] Also, the decor piece 28 fixed on the insert 32, extends into the internal cavity 26 of the headdress 30 with a reduced clearance j. For example, the clearance j between the decorative piece 28 and the walls delimiting the internal cavity 26 of the headdress 30, at the upper end of the cap 22a,is for example less than or equal to 1 mm, preferably less than or equal to 0.5 mm, more preferably less than or equal to 0.2 mm. Thus, it is difficult or even impossible to introduce a rigid element into the gap between the decorative piece 28 and the headdress 30, allowing leverage to be achieved to try to remove the decorative piece 28 of the cork 22a.

[0064] However, due to the angles a40, a56 formed by surfaces S40, S56 rolls 40 and hooks 56, which are relatively slightly inclined relative to the direction of the axis A1 of the cork 22a, the elastic casing of the decorative piece 28 on the spur 42 can be disassembled without damaging the constituent parts of the cap 22a, especially without damaging the decorative piece 28, the headdress 30, nor the insert 42.This disassembly is facilitated by the relative flexibility of the legs 54. So, the rolls 40 and the legs 54 are for example designed to allow dismantling of the decorative piece 28 of the hollow body 24, by pushing one of the pieces of decor 28 and the hollow body 24 relative to each other, according to the direction of the axis A1 of the cork 22a. In this case, the force exerted, parallel to the axis A1 of the cork 22a, causes elastic deformation of the legs 54, the surface S56 hooks 56 following the ramp formed by the surface S40 of the bead 40, until the surface S40, S56 elastic casing are no longer facing each other at all. The thrust required for this disassembly is for example greater than or equal to 10 N, preferably greater than or equal to 15 N, and / or less than or equal to 50 N, preferably less than or equal to 30 N. This limits the risks of damaging a component part of the cap 22a. The thrust force is, according to a particular example, substantially equal to 20 N.

[0065] It should be noted that since the position in which the surfaces S40, S56 are no longer facing each other at all, the movement of withdrawal of the decorative piece 28 can continue, the brackets 56 depending on the surface 41 truncated cone at the top of the insert 32, because the legs 54 tend to return to a position substantially parallel to the axis A2 of the insert 32.

[0066] However, due to the configuration of the cap22a, access to the set piece 28 in order to exert such a thrust, is relatively difficult. In particular, it is not possible to exert such an effort on the decorative piece 28 by dipping a finger into the cork 22a. This limits the risk of the piece of decor being dismantled unexpectedly. 28.

[0067] It is proposed here to implement a tool 100, illustrated in figures 10 And 11 to remove the decorative piece 28 of the hollow body 24, especially when the user wants to change the room decor 28. There figure 11 illustrates the whole 200 formed by such a tool 100 and the cork 22a partners.

[0068] The tool 100 as illustrated includes a relief 102 suitable for being received in the hollow body 24 of the cork 22a, especially in the insert 32way to be in contact with the piece of decor 28. Here, this relief 102 takes the form of a cylindrical rod 104 projecting from a base 106 along the direction of an axis A4 intended to match the axis A1 of the cork 22a when it is received on the tool 100. The cylindrical stem 104 is for example hollow, in order to facilitate its production by molding. The cylindrical rod 104 has legs at its free end 108 shaped to be received in the openings 35 in the insert 32 and come into contact with the ridges 60 of the support plate 52 of the decorative piece 28, when the cork 22a is received on the tool 100. To enable this reception, the tool 100 shape, around the cylindrical stem 104, accommodation 110 shaped to receive the cap 22a.Housing 110 is delimited on the outside by walls 112. The walls 112 can in particular help to guide the relative movement of the cork 22a compared to the tool 100. Here, two of the walls 112 opposite have, at their summit, a recess 114 facilitating the removal of the hollow body 24 when the piece of decor 28 has been removed, as will be described later. Alternatively, a single wall 112 may present such a recess 114 or more than two walls 112. In particular, each wall 112 may present such a recess 114.

[0069] The base 106 of the tool 100 also features a base 107, at the foot of the relief 102. The cross section of this base 107 is complementary to housing 38 at the end 32a of the insert 32.However, the base 107 has a height h107, measured along the axis A4 of the tool, greater than or equal to the height of the housing 38 at the end 32a of the insert 32, measured along the direction of the axis A2.

[0070] The tool 100 is for example made of plastic material. The tool is preferably made of a material having a lower hardness than the material from which the cap is made 28 and / or soft to avoid damaging the cap 28 when the tool 100 is implemented. The edges of the tool 100 can also be rounded or chamfered

[0071] Implementation of the tool 100 is easy.

[0072] Firstly, illustrated in the figure 12 , we put the cap in place 22a on the tool 100, so that the legs 108 of the tool 100are in contact with the ridges 60 of the support plate 52. The legs 108 of the tool 100 can then extend at least partially through the openings 35 in the insert 32.

[0073] Positioning the cap 22a on the tool 100 can be facilitated by the walls 112 delimiting the accommodation 110, the walls 112 to guide the cork 22a on the cylindrical stem 104. Housing 110 thus has, here, a cross section complementary to the cross section of the upper part of the cap 30, rotationally symmetrical around the axis A1. It should be noted here that positioning is also facilitated by the fact that the stopper 22a has rotational symmetry around its axis A1, so that the four positions allowing the reception of the cap 22aon the tool 100, especially in housing 110, all result in the same configuration. On the contrary, a symmetry of revolution of the cap 28 appears less favorable to easy placement of the cap 22 has on the tool 100. It is indeed possible then that the legs 108 of the tools 100 are not directly opposite the ridges 60 of the support plate 52 and that a relative rotation of the cap 22a compared to the tool 100 is necessary, without visual cues to facilitate this positioning by relative rotation.

[0074] In particular in the latter case, a means of angular indexing of the cap may be provided. 22a in the tool 100 to ensure that the cap 22a is correctly installed on the tool 100 so that a push on the cork 22a to the tool 100actually allows the decorative piece to be removed 28.

[0075] In a second step, we push in the cork 22a in the accommodation 110 of the tool 100. In other words, we push on the cap 28, according to the direction of the axis A1 of the cork 22a, towards the tool 100. This thrust is guided by the walls 112 housing 110. This push translates into a push from the legs 108 on the ridges 60 holes 58 of the support plate 52. Due to the relatively significant inclination of the surfaces S40, S56 reliefs 40, 56 allowing the attachment of the decorative piece 28 on the insert 32 and / or due to the elasticity of these reliefs, in particular the legs 54 carrying the hooks 56, it is then possible to elastically “uncouple” the reliefs 56, 40and remove the decorative piece 28 of the cork 22a, without damaging the piece of decor 28, the headdress 30 or the insert 32.

[0076] The height h108 legs 108 added to the height h60 ridges 60 where applicable, may be at least greater than or equal to the height h40 rolls 40. Preferably, the height h108 legs 108 added to the height h60 ridges 60 where applicable, is preferably greater than or equal to the height h40 rolls 40 added to the height h41 from the surface 41 connecting the upper end of the surfaces S40 at the second end 32b longitudinal of the insert 32. In other words, the height h108 legs 108 added to the height h60 ridges 60where applicable, is preferably greater than or equal to the distance, measured in the direction of the axis A2 of the insert, between the lower (or free) end of the surface S56 hooks 56 and the second end 32b of the insert 32.

[0077] Preferably, the push on the cap 28 is possible on a stroke c whose length, measured in the direction of the axis A4 of the tool 100, is at least greater than or equal to the height h40 rolls 40. Preferably, the stroke has a length greater than or equal to the height h40 rolls 40 added to the height h41 from the surface 41 connecting the upper end of the surfaces S40 at the second end 32b longitudinal of the insert 32. In other words, the race cis preferably greater than or equal to the distance, measured along the direction of the axis A2 of the insert, between the lower (or free) end of the surface S56 hooks 56 and the second end 32b of the insert 32.

[0078] The stroke c is slightly less than or equal to the height h108 pasta 108 to prevent the bottom of the insert 32 is not in abutment on the upper end of the cylindrical rod 104 before the insert is in contact with the base 107.

[0079] The set piece 28 removed can then be kept, in particular for later reassembly on the cap 22a of the bottle 12a or on another hood 22 suitable for another case 12, possibly. A new piece of decor 28 can then be placed in the cap 22a,replacing the decorative piece 28 removed. This installation is carried out by elastic fitting, without requiring the use of any tool.

[0080] This disclosure is not limited to the embodiments described above, only as examples, but it encompasses all variants that may be envisaged by those skilled in the art within the framework of the protection sought. In particular, the different examples described above may be combined as long as their teachings are not contradictory.

[0081] For example, in the example described above, the packaging device for a cosmetic product is a perfume bottle equipped with a pump. However, the bottle may not have such a pump.

[0082] The attachment of a decorative piece as just described can also be carried out on a cap of a packaging device for applying a cosmetic product for the lips, in particular for a lipstick. The cap then has such a decorative piece. The cap can be attached to a lipstick body, comprising a lipstick mechanism.

[0083] It is also possible to implement a cap as described above, in a device for packaging and applying a liquid cosmetic product, in particular a mascara or a gloss. In this case, the cap may be integral with an applicator element of the liquid cosmetic product. For example, a rod connects the cap to the applicator element of the cosmetic product. The rod may be fixed or made of the same material as the insert in the cap. In this case, the free end of the cylindrical rod of the tool 100advantageously has a hole allowing the passage of the rod and the applicator element, when the cap is placed on the tool.

[0084] Furthermore, in the illustrated example, the tool 100 does not cooperate with the elastic fitting reliefs of the decorative piece, but pushes on the decorative piece. In fact, the elastic fitting reliefs of the decorative piece are not accessible from inside the insert. These elastic fitting reliefs are therefore invisible to a user, which contributes to the aesthetic appearance of the cap 22a. Alternatively, however, the elastic fitting reliefs of the decorative piece are fixed to the insert so as to be accessible from inside the insert. For example, the elastic fitting reliefs of the decorative piece may take the form of tabs passing through the openings in the insert and each be fixed to a rim of one of these openings. In this case, the tabs of the tool100 can cooperate directly with these elastic casing reliefs. This reduces the force required to dismantle the decorative part by pushing directly on the elastic casing tabs, which will then deform elastically following the complementary elastic casing reliefs. This further reduces the risk of damaging one of the parts of the cap when dismantling a decorative part.

[0085] According to another variant also, the elastic fitting reliefs of the decorative piece cooperate with complementary elastic fitting reliefs formed by the cap.

Claims

1. Cover (22) for a packaging device (10) for at least one cosmetic product, the cover (22) being suitable for attachment on a packaging casing (12) for a cosmetic product, the cover (22) comprising: - a hollow body (24) extending primarily in a longitudinal direction (A1), comprising a first longitudinal end (32a) defining a first opening and intended to be oriented towards the casing (12) of the packaging device (10), and a second longitudinal end defining an opening, opposite to the first longitudinal end (32a), the hollow body (24) comprising at least one first snap-fit relief (40), and - a decorative part (28), the decorative part (28) comprising at least one face (F28) intended to be oriented in a direction opposite to the packaging casing (12) and having a decoration (48), and at least one second snap-fit relief (56), the decorative part (28) being fixed to the hollow body (24) so as to close off the second opening (26) of the hollow body (24), by snap-fitting of the at least one first and at least one second snap-fit reliefs (40; 56), it being possible to disassemble the snap-fitting of the at least one first and at least one second snap-fit reliefs (40; 56) without damaging the hollow body (24) nor the decorative part (28).

2. Cover according to claim 1, wherein the hollow body (24) comprises a shroud (30) defining an internal cavity (26), and an insert (32) fixed inside the shroud (30), wherein the insert (32) has preferably a general shape of a sleeve extending in the longitudinal direction (A1; A2) between a first longitudinal end of the insert (32a) and a second longitudinal end of the insert (32b), the first longitudinal end of the insert (32a) being intended to be oriented towards the first longitudinal end of the hollow body (24) or forming the first longitudinal end of the hollow body (24), the second longitudinal end of the insert (32b) preferably being solid, with, again preferably, at least one through-opening (35) in the longitudinal direction (A1; A2).

3. Cover according to claim 2, wherein: the shroud (30) is fixed to the insert (32) by snap-fit of at least one third snap-fit relief (34) of the shroud (30) with at least one fourth snap-fit relief (42) of the insert (32), the at least one third snap-fit relief (34) being on an inner face of the shroud (30), the at least one fourth snap-fit relief (32) preferably being on an outer surface of the insert (32); and / or the insert (32) has a means for fixing the cover (22) to the casing (12) of the packaging device (10), in particular at least one relief for fixing the cover (22) on the casing (12), in particular at least one snap-fit relief, a threading, or a diameter allowing adjusted or even a tightly fitted assembly.

4. Cover according to claim 2 or 3, wherein the at least one first snap-fit relief is formed by the shroud (30).

5. Cover according to claim 2 or 3, wherein the at least one first snap-fit relief (40) is formed by the insert (32), wherein the at least one first snap-fit relief (40) is preferably formed on an outer face of the insert (32).

6. Cover according to claim 4 or 5, wherein the at least one first snap-fit relief is formed by at least one bead (40), the at least one second snap-fit relief (56) being formed by at least one resiliently deformable tab (54) extending from a face of the decorative part (28) that is opposite to the at least one face having a decoration (F28).

7. Cover according to any one of the preceding claims, wherein the at least one face (F28) having a decoration (48), of the decorative part (28), is substantially planar; and / or the at least one face (F28) having a decoration (48), of the decorative part (28), is flush with the second end of the hollow body (24); and / or the decorative part (28) comprises a decorative plate (50) and a support plate (52) for the decorative plate (50), the decorative plate (50) being fixed, in particular glued, to the support plate (52).

8. Cover according to any one of the preceding claims, comprising a clearance (j) between the decorative part (28) and the second end of the hollow body (24), the clearance (j) preferably being less than or equal to 1 mm, more preferably less than or equal to 0.5 mm, even more preferably less than or equal to 0.2 mm.

9. Cover according to any one of the preceding claims, wherein each first snap-fit relief (40) comprises a first surface (S40) in contact with a second surface (S56) of an associated second snap-fit relief (56), each first or second surface (S40; S56) extending in a plane which forms an angle (a56; a40) with the longitudinal direction (A1), the angle (a56; a40) preferably being greater than or equal to 30°, more preferably greater than or equal to 40°, and / or less than or equal to 60°, more preferably less than or equal to 50°.

10. Cover according to any one of the preceding claims, wherein the at least one first snap-fit relief (40) and the at least one second snap-fit relief (56) are shaped to allow disassembly of the decorative part (28) from the hollow body (24), by pushing on one among the decorative part (28) and the hollow body (24) in the longitudinal direction (A1), the force of the push preferably being between 10 N and 50 N.

11. Cover according to any one of the preceding claims, wherein the decoration (48) comprises at least one among: - a color, in particular other than the color of the hollow body (24) or of the shroud (30), when there is such, - a pattern, - at least one disc made of a material or imitating the appearance of a material, - a trademark, in particular a logo, and - a recessed or protruding relief.

12. Cover according to any one of the preceding claims, wherein the cover (22) is a cap (22a), wherein the hollow body (24) is preferably integral with a rod, an applicator member being arranged at the end of the rod that is opposite to the hollow body (24).

13. Packaging device (10) for at least one cosmetic product, comprising a casing (12) defining a volume for receiving at least one cosmetic product, and a cover (22) according to any one of the preceding claims, fixed on the casing (12), wherein the casing (12) is preferably a bottle (12a) with a neck (16), more preferably provided with a pump (19), the cover (22) being a cap (22a) suitable for fixing to the neck (16) of the bottle (12a), or wherein the casing is a lipstick body, receiving a lipstick mechanism.

14. Tool (100) for removing a decorative part (28) of a cover (22) according to any one of claims 1 to 12, from the hollow body (24) of the cover (22), the tool (100) comprising a relief (102) suitable for being received in the hollow body (24) of the cover (22) so as to be in contact with a face of the decorative part (28), opposite to the at least one face (F28) having a decoration (48), and to allow a push force to be applied on the decorative part (48), wherein the tool preferably comprises a housing (110) for receiving the cover (22), the relief (102) of the tool (100) projecting from a bottom (106) of the housing (110) and / or wherein the tool (100) is preferably shaped to allow positioning the cover (22) on the tool (100) in a finite number of angular positions.

15. Tool according to claim 14, the cover (22) being in accordance with claim 3, the second longitudinal end of the insert (32b) being solid with at least one through-opening (35) in the longitudinal direction (A1; A2), wherein the relief (102) extends in a longitudinal direction (A1, A4), a longitudinal end of the relief (102) of the tool (100) presenting at least one tab (108) having a position and dimensions suitable for coming into contact with the face of the decorative part (28) that is opposite to the at least one face (F28) having a decoration (48), through the at least one through-opening (35) in the insert (32) and to allow a push force to be exerted on the face of the decorative part (28) that is opposite to the at least one face (F28) having a decoration (48), as long as the hollow body (24) of the cover (22) is not in contact with the bottom (106, 107) of the housing (110), when there is such, wherein the height (h108) of the tabs (108), measured in the longitudinal direction (A, A1, A4), is preferably such that the tabs (108) push on the decorative part (28) over a relative travel of the hollow body (24) with respect to the tool (100) that is at least equal to the height (h40) of the first snap-fit reliefs (40); and / or wherein the relief (102) of the tool has preferably a cylindrical rod (104) suitable for traversing all or part of the hollow body (24) of the cover (22).

16. Method for removing a decorative part (28) from a cover (22) according to any one of claims 1 to 12, by means of a tool according to claim 14 or 15, the method comprising the steps of: placing the cover (22) in position on the tool (100); exerting a relative push force on the cover (22) in the direction of the tool (100), along the longitudinal direction (A1, A4).

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