Refillable cosmetic container with a long ramp bayonet fitting

Abstract

The invention relates to a longitudinal axis (X) device for packaging a refill (100) of cosmetic product, the device comprising an external container (200) having a cavity for receiving the refill (100), the refill (100) being able to be removably fixed by a temporary joining mechanism comprising a wing portion (120) mounted on the refill (100) and having a guide groove (123) intended to cooperate with a fixing protrusion (222) of a guide portion (220) mounted on the external container (200). Figure 6

Description

Title of the invention: Refillable cosmetic container equipped with a long ramp bayonet

[0001] The present invention relates to a mini refillable cosmetic container with a locking system comprising a long ramp bayonet. It also relates to a cosmetic process comprising the use of this cosmetic container.

[0002] More generally, a cosmetic product is a product as defined in Regulation (EC) No 1223 / 2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products.

[0003] The cosmetic product may include, in particular, a makeup product such as a foundation or tinted cream, a care product such as a body gel or a moisturizing or anti-aging cream, a hair product such as a styling or hair care spray. Technological background

[0004] Cosmetic devices comprising a refill placed in a container are known.

[0005] Documents US8998020, JP2010241505, US9861177, WO202179060 describe refillable conditioning devices.

[0006] In recent years, particularly in the field of cosmetics, this type of refillable device has been developed with the aim of reducing the manufacturing costs of cosmetic packaging, and reducing its impact on the environment.

[0007] Document KR20240017468A discloses a refillable cosmetic container, comprising a refill container having a first space formed for storing the contents, and having a locking part extending downwards outwards; and a main container body having a second space formed for receiving the refill container, and having a guide part formed for guiding movement of the locking part, in which the guide part includes a fixing groove, which is a space in which the locking part is fixed, and the locking part includes a guide projection which can be coupled to the fixing groove.

[0008] Document KR20240017587A discloses a refillable cosmetic container comprising a refill container with a first space provided inside for storing the contents and a wing-shaped part formed outside;

[0009] A container body with a second space provided inside to receive the refill container and a wing receiving part formed to come into contact with the wing part;

[0010] A projecting coupling portion designed to project from the outer surface of the wing receiving portion; and

[0011] An elastic concave part provided on an end part of the wing part to be elastically deformable by the protruding coupling part, so that when the refill container is coupled to the container body, it is elastically deformed by the protruding coupling part, and then the elastic deformation is released to be fixed to the protruding coupling part.

[0012] 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 more sustainable products, thereby reducing the amount of materials used and / or replacing them with more environmentally friendly materials and / or using recyclable materials to decrease the product's carbon footprint.

[0013] In this context, it is important to develop products that generate less waste, particularly those optimized for the quantity of products 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 recharged at home or in stores, in order to reduce the carbon footprint of the products.

[0014] There is a growing need to gradually replace non-reusable packaging devices with packaging devices comprising a reusable outer container and a refill of cosmetic product, the outer container being able to be kept once the cosmetic product has been used, only the refill being thrown away.

[0015] Once the refill is empty, the user generally only needs to unlock it from the open end of the external container, to remove it and replace it with a new refill.

[0016] However, it is important on the one hand that the packaging device has the aesthetic qualities required by the user, and on the other hand that the handling of replacing a used refill is also as simple as possible for the user.

[0017] Thus, the type of conditioning device must be easy to use and must allow for easy removal of the refill it contains and for the installation of a easily recharged, meaning requiring little effort or attention from the user.

[0018] The packaging device must also allow the removable assembly to be easily locked onto the open end of the case. Furthermore, the refill must be reliably held within the packaging device; that is, the removable refill must not accidentally move into its unlocked position.

[0019] The packaging device must also be sufficiently robust to remain intact during transport.

[0020] Definition of the invention

[0021] The invention relates to a device with a longitudinal axis X for packaging a refill of a cosmetic product, the device comprising an external container having a cavity for receiving the refill and having an open upper end and a lower end delimited by a first bottom, the refill being able to be removably fixed to the open end of the external container by a temporary joining mechanism between an insertion position in which the refill is retained in the external container and an extraction position in which the refill is extracted from the external container, the refill being delimited below by a second bottom, the temporary joining mechanism comprising a wing part mounted on the refill and provided with a guide groove intended to cooperate with a fixing protrusion of a guide part mounted on the external container,The guide section forms a guide ramp and defines an angular stroke of the refill relative to the external container around the longitudinal axis X, between 70° and 90°, to move from a refill unlocking position from the external container, in which the wing section disengages from the guide ramp, to a refill locking position in the external container, in which the fixing protrusion is engaged in the guide groove.

[0022] The invention provides a bayonet-type device with long ramps and a click at the end of the ramp to facilitate focusing. With the device according to the invention, it is possible to lock a cartridge in an external container, screwed in approximately a quarter turn, without play, and in a manner robust for transport.

[0023] Advantageously, the angular distance between two free ends of the same ramp is between 80° and 100°, preferably between 85° and 100° and more preferably between 87° and 95°. Preferred modes of implementation

[0024] Preferably, the application element according to the invention has one or more of the following characteristics, taken alone or in combination:

[0025] The guide part is located on an intermediate ring integral with the external container.

[0026] The wing part is mounted on an intermediate part, in particular a pump body, via a connecting part.

[0027] The guide groove is located at a free end of the wing part.

[0028] The guide groove is a concave relief forming a recess in the part wing.

[0029] The wing part has a guide protrusion located between a free end of the wing part and the guide groove.

[0030] The fixing protrusion is disposed at one end of the guiding part.

[0031] The fixing protrusion is a convex relief with its concavity facing the bottom of the external container.

[0032] A guide protrusion of the wing part cooperates with a fixing groove of the guide part.

[0033] The guide part includes an engagement part for sliding the guide protrusion during the rotation of the refill.

[0034] The fixing protrusion forms a stop defining a pre-locking position of the refill in the external container.

[0035] The pre-locking position and the locking position are separated from each other by an angular stroke of between 5° and 10° around the longitudinal axis X.

[0036] The refill is equipped with a pump dispensing system to dispense the cosmetic product contained in the refill, the pump dispensing system comprising a pump body and a push button movable relative to the pump body between a dispensing position and a storage position.

[0037] The wing part is fixed to the pump body.

[0038] The device comprises two guide parts symmetrical to each other with respect to the longitudinal axis X and two successive guide parts are angularly separated by a free space intended for the insertion of the wing part under the guide part. Description of the figures

[0039] Other features and advantages of the invention will become apparent from the following detailed description, non-limiting examples of its implementation, and from examination of the accompanying drawing, in which:

[0040] [Fig.1],

[0041] Figure 1 shows, in exploded view, an example of a device according to the invention, the external container not being shown.

[0042] [Fig.2],

[0043] Figure 2 represents, in isolation, a first perspective view of the part lower part of the pump body with integrated bayonet of the device according to [Fig.l],

[0044] [Fig.3],

[0045] Fig. 3 represents, in isolation, a second perspective view of the lower part of the pump body with integrated bayonet of the device according to Fig. 1,

[0046] [Fig. 4],

[0047] Fig. 4 represents, in isolation, a first perspective view of the hull fret insert of the device according to Fig. 1.

[0048] [Fig.5],

[0049] Fig. 5 represents, in isolation, a second perspective view of the hull fret insert of the device according to Fig. 1.

[0050] [Fig.6],

[0051] Figure 6 shows a perspective view of the fret insert at the beginning of its assembly with the pump body bayonet.

[0052] [Fig.7],

[0053] Figure 7 shows a perspective view of the fret insert in position intermediate of its assembly with the bayonet of the pump body,

[0054] [Fig. 8],

[0055] Figure 8 shows a perspective view of the fret insert assembled with the pump body bayonet,

[0056] [Fig.9],

[0057] Fig. 9 represents a longitudinal section of a lower portion of the device of Fig. 1, the fret insert being assembled with the bayonet of the pump body,

[0058] A conditioning device according to the invention of longitudinal axis X is illustrated in Fig. 1, comprising a refill 100 equipped with a pump dispensing system and an external container 200 in which the refill 100 can be fixed when not in use.

[0059] The 100 refill and can each be manufactured in one piece by injection molding.

[0060] The refill 100 comprises a transparent, injection-molded and blown bottle, elongated in shape in the example shown. The bottle is cylindrical and has, at its upper end, a neck 25 defining an opening for attaching the dispensing system. The bottle includes a body 101 closed at its lower end by a rounded base 59 and connected to the neck 25 by the shoulder 54. Preferably, the bottle is made of mineral glass, for example, transparent.

[0061] Preferably, the refill 100 is made of plastic material and the external container 200 is made of glass.

[0062] The pump distribution system includes a pump and a push button movable along an X axis relative to the pump 2.

[0063] The pump is assembled to a pump body 110 with integrated bayonet, the pump body 110 being made in one piece with an internally threaded mounting skirt (not shown) intended to screw onto the neck 25 of the refill by means of the additional thread 91.

[0064] The pump body 110 preferably includes a pump cover 5, also called a "frette", in particular metallic, arranged to be fixed on the pump body 110. This pump cover 5 contributes to the aesthetics of the device and may also have a function of retaining the pump.

[0065] The 100 refill can be made in particular of plastic material such as PET, for example transparent.

[0066] The external container 200 or shell comprises a container body, the upper end of which defines an opening on which is fixed a ring 40 or shell collar insert made of thermoplastic material, in particular POM.

[0067] The ring 40 is assembled onto the shell, in particular clipped onto the shell. A shell flange 6, in particular made of aluminum, is glued onto the ring 40, especially to improve the aesthetics.

[0068] Figs. 2 and 3 show the pump body 110 comprising a locking part 122 extending upwards on a wing part 120 deployed radially around the longitudinal axis X from a junction part 111 extending parallel to the longitudinal axis X from an underside face of the shoulder 113.

[0069] The pump body 110 is provided with an outer cylindrical skirt 61 having, above the shoulder 63, a cylindrical shape, as well as an inner cylindrical skirt 62, defining with the wing part 120, a space to house the ramp of the ring 200. The inner cylindrical skirt is interrupted at the rear of the locking part 125.

[0070] Furthermore, the wing portion 120 is advantageously formed of a material that is elastically deformed by the force applied when the refill 100 and the external container 200 are assembled. Consequently, the assembly between the refill 100 and the external container is easier and more robust.

[0071] More specifically, the wing part 120 includes a guide protrusion 122 coupled to a fixing groove 223 of the guide part 220 of the ring 200. The wing part 120 may include an extension part 124 connecting the guide protrusion 122 and the joining part 111.

[0072] The guide projection 122 can be formed to project upwards from one end (free end) of the extension part 124.

[0073] The guide projection 122 can be connected to the extension part 124 via a guide groove 123 adapted to engage with a fixing protrusion 222 of the guide part 220 of the ring 200.

[0074] The guide projection 122 may have a first curved surface 1221 which forms an ascending surface of the guide projection 122 and may include a second surface 1222 which forms a descending surface of the guide projection 122 and connects the first surface 1221 to the guide notch 123.

[0075] The process of fixing the refill 100 and the external container is shown in [Fig.6] to [Fig.9].

[0076] During this process, the wing part 120 can be elastically deformed downwards.

[0077] During the process of fixing the refill 100 and the external container, the first surface 1221 can come into contact with the first upward curved surface 2221 of the guide protrusion 222, and the first surface 1221 can go beyond the first upward surface 2221 of the fixing protrusion 222 and come into contact with the second downward curved surface 2222 of the fixing protrusion 222.

[0078] In the example shown, the mounting groove 223 forms a flat-bottomed recess, but it could be otherwise. In particular, the bottom could be concave, with the concavity facing the body of the container.

[0079] The guide part 220 includes an engagement part 224 defining the amplitude of the stroke of the guide projection 122 before its contact with the fixing protrusion 222, the fixing protrusion 222 being able to slide under the lower surface of the engagement part 224 before passing through the fixing protrusion 222 to slide again on the surface of the fixing groove 223.

[0080] To fix the refill to the external container, the user inserts the refill into the container. He rotates the refill around the X axis so that each wing part 120 is placed in the free space separating two guide parts 220. He rotates the refill by an angle close to 90° around the longitudinal axis X, so that the protrusion 222 joins the guide groove 123 and engages in the guide groove 123 to lock the position of the refill in the external container.

[0081] During rotation, the protrusion 122 slides under the guide part 220 as shown in Figures 6 to 8, to fit into the fixing groove 223 as shown in Figures 8 and 9.

[0082] When releasing the coupling between the refill container 100 and the container body 200, the user rotates the refill counterclockwise while holding the outer container fixed. The user can slightly lift the ferrule insert to more easily release the coupling, causing the guide portion 220 to move upwards elastically. After deformation, the coupling between guide groove 123 and fixing protrusion 222 of wing part 120 can be released.

[0083] One end of the wing part 120 can be elastically deformed in the vertical direction by being pressed by the projection 222 preventing the separation of the guide part 220 and the wing part.

[0084] A guide protrusion 122 is formed on one end of the wing part 120, and the other end can be connected to the joining part 111.

[0085] Of course, the invention is not limited to the examples just described.

[0086] For example, the body of the refill can be made with a non-symmetrical shape of revolution.

[0087] The pump distribution system can be fixed to the external container with a seal, for example by providing a flexible seal.

Claims

Demands

1. A longitudinal axis (X) conditioning device for a refill (100) of cosmetic product, the device comprising an external container (200) having a cavity for receiving the refill (100) and having an open upper end and a lower end delimited by a first bottom, the refill (100) being able to be removably attached to the open end of the external container by a temporary junction mechanism between an insertion position in which the refill (100) is retained in the external container (200) and an extraction position in which the refill (100) is extracted from the external container (200), the refill being delimited below by a second bottom,characterized in that the temporary joining mechanism comprises a wing portion (120) mounted on the refill (100) and provided with a guide groove (123) intended to cooperate with a fastening protrusion (222) of a guide portion (220) mounted on the external container (200); the guide portion (220) forms a guide ramp and defines an angular stroke of the refill (100) relative to the external container (200) around the longitudinal axis (X) of between 70° and 90° to move from an unlocked position of the refill (100) from the external container (200), in which the wing portion (120) disengages from the guide ramp, and a locked position of the refill (100) in the external container (200) in which the fastening protrusion (222) is engaged in the guide groove (123).

2. Device according to claim 1, characterized in that the guiding part (200) is located on an intermediate ring (40) integral with the external container (200).

3. Device according to any one of the preceding claims, characterized in that the wing part (120) is mounted on an intermediate part, in particular a pump body, via a connecting part (111).

4. Device according to any one of the preceding claims, characterized in that the guide groove (123) is located at a free end of the wing part (120).

5. Device according to any one of the preceding claims, characterized in that the guide groove (123) is a concave relief forming a recess in the wing part (120).

6. Device according to any one of the preceding claims, characterized in that the wing part (120) has a guide protrusion (122) located between a free end of the wing part (120) and the guide groove (123).

7. Device according to any one of the preceding claims, characterized in that the fixing protrusion (222) is disposed at one end of the guiding part (220).

8. Device according to any one of the preceding claims, characterized in that the fixing protrusion (222) is a convex relief with concavity facing towards the bottom of the external container (200).

9. Device according to any one of the preceding claims, characterized in that a guide protrusion (122) of the wing part (120) cooperates with a fixing groove (223) of the guide part (220).

10. Device according to any one of the preceding claims, characterized in that the guide part (220) includes an engagement part (224) for sliding the guide protrusion (122) during the rotation of the refill (100).

11. Device according to any one of the preceding claims, characterized in that the fixing protrusion (222) forms a stop defining a pre-locking position of the refill (100) in the external container (200).

12. Device according to the preceding claim, characterized in that the pre-locking position and the locking position are separated from each other by an angular stroke of between 5° and 10° around the longitudinal axis (X).

13. Device according to any one of the preceding claims, characterized in that the refill (100) is equipped with a pump dispensing system for dispensing the cosmetic product contained in the refill (100), the pump dispensing system comprising a pump body and a push button movable relative to the pump body between a dispensing position and a storage position.

14. Device according to the preceding claim, characterized in that the wing part (120) is fixed on the pump body.

15. Device according to the preceding claim, characterized in that it comprises two guide parts (220) symmetrical to each other with respect to the longitudinal axis (X) and two successive guide parts (220) are angularly separated by a free space intended for the insertion of the wing part (120) under the guide part (220).

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