阅读说明：本技术 用于涂敷化妆品的容器的机构和包括这种机构的容器 (Mechanism for a container for applying a cosmetic product and container comprising such a mechanism ) 是由 马克·埃蒙森 马克·乔尔达因 于 2021-04-16 设计创作，主要内容包括：本发明提供了一种用于涂敷化妆品的容器的机构和包括这种机构的容器。机构被设计成通过至少一次旋转运动使化妆品离开,所述机构包括至少一个塑料护套以及位于护套外部的一个塑料壳体,护套的塑料材料和壳体的塑料材料选自聚丙烯和/或聚对苯二甲酸乙二醇酯。(The present invention provides a mechanism for applying a container of cosmetic product and a container comprising such a mechanism. The mechanism is designed to move the cosmetic product away by at least one rotary motion, said mechanism comprising at least one plastic sheath and one plastic housing located outside the sheath, the plastic material of the sheath and the plastic material of the housing being chosen from polypropylene and/or polyethylene terephthalate.)

1. Mechanism (20) for applying a container of cosmetic product (12), designed to move away the cosmetic product (12) by at least one rotary motion, comprising at least:

-a sheath (24) comprising internally at least one helical groove (27);

-a guide (22) rotatably mounted in the sheath (24);

-a cup (26) carrying a cosmetic product (12), said cup being mounted in said guide (22);

-an outer casing (28) surrounding the sheath (24);

the sheath (24) and the housing (28) are made of a plastic material selected from polypropylene and/or polyethylene terephthalate.

2. Mechanism according to the preceding claim, wherein the housing (28) is held on the sheath (24) by at least one thickened material portion (50) located between the sheath (24) and the housing (28), so that the sheath (24) and the housing (28) are at least fixed so as to be translatable.

3. Mechanism according to the preceding claim, wherein said at least one thickened material portion (50) ensures a press fit of the housing (28) around the jacket (24).

4. Mechanism according to the preceding claim, wherein said at least one portion of thickened material (50) is located on an inner surface (52) of said housing (28) and/or on an outer surface (46) of said jacket (24).

5. Mechanism according to the preceding claim, wherein it comprises a plurality of portions of thickened material (50) distributed on an inner surface (52) of the casing (28) and/or on an outer surface (46) of the jacket (24).

6. Mechanism according to any one of claims 4 or 5, wherein said at least one thickened material portion (50) is a material protrusion arranged around the periphery of the inner surface (52) of the housing (28) and/or the periphery of the outer surface (46) of the jacket (24).

7. The mechanism of claim 6, wherein the at least one thickened material portion (50) is two material protrusions arranged around the periphery of an inner surface (52) of the housing (28).

8. Mechanism according to any one of the preceding claims, wherein said at least one thickened material portion (50) is arranged on a lower portion of the casing (28) and/or the sheath (24) opposite an upper portion comprising an opening (42) through which the cosmetic product can exit.

9. Mechanism according to any one of the preceding claims, wherein the cup (26) is made of a plastic material chosen from polypropylene and/or polyethylene terephthalate.

10. Mechanism according to any one of the preceding claims, wherein the housing (28) and the sheath (24) are fused at least one point, called assembly point (40), so as to be fixed both in rotation and in translation.

11. A container (10) for applying a cosmetic product, comprising a lid (14) and an actuating base (16) comprising a mechanism (20) according to any one of the preceding claims, the actuating base (16) allowing the entry and/or exit of a cosmetic product (12).

12. Coating container according to the preceding claim, wherein the lid (14) is made of a plastic material chosen from polypropylene and/or polyethylene terephthalate and/or the base (16) is made of a plastic material chosen from polypropylene and/or polyethylene terephthalate.

Technical Field

The present invention relates to a mechanism for applying a container of a cosmetic product, in particular a stick of lipstick, and to a container comprising such a mechanism.

Background

In general, a container for applying a cosmetic product, in particular a lipstick stick, comprises means for moving the cosmetic product between a retracted position and an application position in which the cosmetic product can be applied by friction.

The actuation of the mechanism is generally controlled manually by applying a rotary motion to the base of the container, which is transmitted to the mechanism to cause an axial movement of the cup containing the cosmetic product.

Mechanisms of this type generally comprise at least one housing (also called a sleeve) fitted on a sheath that participates in the movement of the cosmetic product. The housing is a visible aesthetic component because it extends outside the base of the container that houses the remainder of the mechanism.

Traditionally, the housing and the sheath are made as two separate parts, the materials of which can be freely chosen. In such a design, the two components must be integrally bonded to each other.

Typically, a metal material (such as anodized aluminum) is selected for the housing, and a plastic material is selected for the sheath of the mechanism.

The metallic material of the housing enables the housing to be mounted on the sheath by crimping, stamping or gluing, these techniques having the advantage of ensuring an axial and rotational connection between the housing and the sheath.

On the other hand, the presence of two different materials, metal and plastic, has drawbacks, in particular during the recycling process, which has to separate the two parts.

In particular, the object of the present invention is to propose a new design of the mechanism which is able to solve at least some of the drawbacks of the prior art.

Disclosure of Invention

The invention therefore relates to a mechanism for applying a container of cosmetic product, designed to move the product away by at least one rotary motion, said mechanism comprising at least:

-a sheath comprising internally at least one helical groove;

-a guide rotatably mounted in the sheath;

-a cup carrying a cosmetic product, said cup being mounted in a guide;

-an outer housing surrounding the sheath;

the sheath and the housing are made of a plastic material selected from polypropylene and/or polyethylene terephthalate.

Plastic parts can be easily obtained by injection moulding and form a light weight mechanism.

In addition, the plastic material can be dyed, thus ensuring aesthetic quality.

Furthermore, the use of plastic material, in particular similar plastic material for the whole mechanism, facilitates recycling. In particular, polypropylene and polyethylene terephthalate are two plastic materials, the recycling of which is well known.

According to various embodiments of the invention, the following features can be employed, either collectively or individually:

-the guide is surrounded by a jacket,

-rotation of the guide relative to the jacket induces an axial movement of the cup,

the cup is made of a plastic material chosen from polypropylene and/or polyethylene terephthalate,

-the guide is made of a plastic material selected from polypropylene and/or polyethylene terephthalate,

all the components of the mechanism are made of a plastic material chosen from polypropylene and/or polyethylene terephthalate,

the housing is held on the sheath by at least one thickened material portion located between the sheath and the housing, so that the sheath and the housing are at least fixed to be able to translate,

the thickened material portions also enable the sheath and the housing to be fixed so as to be rotatable,

-the at least one thickened material portion ensures a press fit of the housing around the jacket,

-the at least one thickened material portion is located on the inner surface of the shell,

-said at least one thickened material portion is located on the outer surface of the sheath,

the means comprise a plurality of thickened material portions distributed over the inner surface of the housing,

the means comprise a plurality of portions of thickened material distributed over the outer surface of the sheath,

-the at least one thickened material portion is a material protrusion arranged around the circumference of the inner surface of the housing,

-the at least one thickened material portion is a material protrusion arranged around the circumference of the outer surface of the sheath,

-the at least one thickened material portion is two material protrusions arranged around the circumference of the inner surface of the shell,

said at least one thickened material portion is arranged on a lower portion of the casing and/or the sheath opposite to the upper portion, which comprises an opening through which the cosmetic product can exit,

the housing and the sheath are fused at least one point, called the assembly point, to be fixed in rotation and in translation,

the housing has an outer surface on which the at least one assembly point is visible,

the mechanism comprises a plurality of assembly points,

a plurality of assembly points distributed around the circumference of the housing,

a plurality of assembly points are evenly distributed around the circumference of the housing,

a plurality of assembly points are distributed over the entire height of the housing,

a plurality of assembly points are evenly distributed over the entire height of the housing,

-the at least one assembly point is a pattern such as a logo, a letter, text or the like.

The invention also relates to a container for applying a cosmetic product, comprising a lid and an actuating base comprising a mechanism as described below, the actuating base allowing the cosmetic product to enter and/or exit.

Advantageously, the cover is made of a plastic material chosen from polypropylene and/or polyethylene terephthalate and/or the base is made of a plastic material chosen from polypropylene and/or polyethylene terephthalate.

Advantageously, the means comprising the assembly points described below are obtained by a method for obtaining assembly points comprising the step of obtaining said at least one assembly point by welding.

Advantageously, the welding is obtained by hot stamping.

Drawings

The invention will be better understood and other characteristics and advantages thereof will become apparent from the following detailed description of at least one embodiment of the invention, given by way of purely illustrative and non-limiting example, with reference to the accompanying schematic drawings in which:

FIG. 1 is an axial cross-sectional view showing the container after the mechanism according to the present invention is mounted on the container's actuating base;

FIG. 2 is an axial cross-sectional view showing the mechanism of FIG. 1;

FIG. 3 is a perspective view of a sheath-housing assembly including the mechanism of FIG. 2;

FIG. 4 is an axial cross-sectional view of the assembly of FIG. 3;

FIG. 5 is an enlarged view of FIG. 4;

fig. 6 is a perspective view of a housing of the assembly of fig. 2.

Detailed Description

By convention, the "axial" direction corresponds to the main direction of extension of the container, as indicated by axis a in the figures, and the "radial" direction is orthogonal to the axial direction.

In the following detailed description of the drawings, the terms "upper" and "lower" or "top" and "bottom" will be used in a non-limiting manner with reference to the axial direction.

Similarly, the terms "outer, outer or outer" and "inner, inner or inner" are used with reference to a radial direction, the outer element being radially further from the axis a than the inner element.

In the following description, elements having the same structure or similar function will be denoted by the same reference numerals.

An example of an embodiment of a container 10 (also referred to as a housing) for cosmetic products 10 is shown in fig. 1.

In the example of embodiment, the cosmetic product is a stick 12 of cosmetic product, more particularly a stick 12 of lipstick intended to be applied by friction, or a lip balm.

The container 10 comprises at least one lid 14 associated with an actuating base 16 having a complementary shape, the base 16 and the lid 14 together defining the outer contour of the container 10.

The container 10 further includes a mechanism 20 for dispensing a stick 12 of cosmetic product.

In a non-limiting manner, the lid 14, base 16 and mechanism 20 of the container 10 have a cylindrical shape with a circular cross-section.

Preferably, the lid 14 is removable. The lid 14 is able to occupy at least one open position, in which the lid 14 is separated from the base 16, and a closed position, in which the lid 14 is fixed to the base 16 (figure 1), in particular in view of the application of the cosmetic product.

The lower portion of the cover 14 internally comprises at least one annular projection 18 intended to cooperate with an outer cylindrical surface of the mechanism 20.

Advantageously, the annular projection 18 ensures that the lid 14 is kept in the closed position and participates in obtaining an airtight closure during use of the mechanism 20, so as to guarantee a good preservation of the stick 12 of cosmetic product.

The cover 14 comprises a lower edge 19 which, in the closed position, can abut against the upper edge 17 of the actuating base 16.

In one embodiment, not shown, the base 16 may include a shoulder extending radially where an upper portion of the base 16 joins a lower portion of larger diameter. Thus, in the closed position, the lower edge of the lid 14 may abut against the shoulder.

An example of an embodiment of the mechanism 20 is shown in fig. 2.

The mechanism 20 has a main axis extending along an axial direction, which coincides with the main axis a of the container 10.

Mechanism 20 is intended to be removably or non-removably mounted on an actuation base 16 (e.g., actuation base 16 of cosmetic container 10 described above).

In the case of a removable mechanism 20, the mechanism 20 is intended to be replaceable, particularly but not limited to after the cosmetic product 12 has been completely depleted.

The mechanism 20 of the cosmetic product 12 and its entry and/or exit mechanism described below are given as non-limiting examples only.

In an exemplary embodiment, the mechanism 20 includes an inner guide 22 whose rotation relative to an outer sheath 24 causes an axial movement of a cup 26 carrying the stick 12 of cosmetic product, thereby enabling the stick 12 of cosmetic product to enter and/or exit. In other words, the guide 22 is rotatably mounted in the sheath 24. A cup 26 is mounted in the guide 22.

Cup 26 includes at least one lug (not visible), and preferably two diametrically opposed lugs.

The lugs are correspondingly engaged with a slide 25 of the guide 22, said slide 25 extending linearly in the axial direction. Advantageously, each slider 25 comprises, at each of its upper and lower ends, an angled recess 25a forming an abutment for the lugs of the cup 26.

A jacket 24 surrounds the guide 22. The jacket 24 comprises internally two helical grooves 27, the free ends of the lugs cooperating respectively with the helical grooves 27, each lug passing radially through the associated slide 25 of the guide 22 to engage with the groove 27.

The mechanism 20 also includes a housing 28 (also referred to as a sleeve or bushing). The housing 28 surrounds the sheath 24.

According to the invention, the housing 28 and the sheath 24 are made of plastic material.

The plastic material of the housing 28 and the plastic material of the sheath 24 may be selected from polypropylene and/or polyethylene terephthalate.

The housing 28 and the sheath 24 may be made of the same plastic material, or may be made of two different plastic materials. Preferably, the housing 28 and the sheath 24 are made of the same plastic material.

Advantageously, a cup 26 and/or a guide 22 made of a plastic material chosen from polypropylene and/or polyethylene terephthalate are also provided.

Advantageously, therefore, all the components of the mechanism 20 are made of a plastic material chosen from polypropylene and/or polyethylene terephthalate.

The plastic parts can be easily obtained by injection molding and form a light weight mechanism 20.

In addition, the plastic material can be dyed, thus ensuring aesthetic quality.

Furthermore, the use of plastic materials, particularly similar plastic materials for the entire mechanism 20, facilitates recycling. In particular, polypropylene and polyethylene terephthalate are two plastic materials, the recycling of which is well known.

Advantageously, the cover 14 and/or the base 16 are also made of a plastic material chosen from polypropylene and/or polyethylene terephthalate.

The cover 14 and base 16 may be made of the same plastic material, or may be made of two different plastic materials. Preferably, the cover 14 and base 16 are made of the same plastic material.

Advantageously, the entire container 10, i.e. the entire mechanism 20, as well as the lid 14 and the base 16 are made of a plastic material selected from polypropylene and/or polyethylene terephthalate, in particular of the same plastic material.

Likewise, the use of plastic material, in particular similar plastic material for the entire container 10, facilitates obtaining such components: the component can be easily obtained by injection moulding and forms a lightweight container 10.

In addition, the plastic material can be coloured, thus ensuring aesthetic quality.

Furthermore, the use of plastic materials, particularly similar plastic materials for the entire mechanism 20, facilitates recycling. In particular, polypropylene and polyethylene terephthalate are two plastic materials, the recycling of which is well known.

The guide 22 includes a knob 30. The knob 30 is axially positioned at the lower end of the guide 22.

The knob 30 is intended to enable the guide 22 to be rotated, so as to cause an axial upward or downward movement of the cup 26 and therefore of the stick 12 of cosmetic product, depending on the direction of rotation.

In this embodiment, the knob 30 is a separate component that is attached to the guide 22. Alternatively, the knob 30 is made in one piece with the guide 22 of the mechanism 20.

In such a container 10, the knob 30 of the mechanism 20 is actuated by the base 16 after the lid 14 has been previously removed.

In an alternative embodiment, the housing 28 and/or the sheath 24 extend axially beyond the knob to prevent access to the knob 30 or at least to make access to the knob 30 difficult. Such a configuration makes it possible to limit the actuation of the mechanism 20 by the user even before said mechanism 20 has been associated with the respective seat 16.

Thus, the knob 30 and the base 16 must be connected together axially on the one hand and rotationally on the other hand to ensure that any rotational movement applied to the base 16 is transmitted to the knob 30 of the mechanism 20.

To this end, the actuation base 16 comprises fixing means for axially connecting the actuation base 16 with the knob 30 of the mechanism 20.

The securing means comprises four tabs 32 extending axially upwardly from a lower portion of the actuating base 16.

The four tabs 32 of the actuation base 16 are regularly angularly distributed by 90 °. The tab 32 is inserted into a complementary hole centrally provided in the knob 30 of the mechanism 20. Advantageously, the tab 32 is flexible.

The free end of each tab 32 is configured to form a hook 34 that engages an upper edge 36 of a hole in the knob 30 to axially lock the actuation base 16.

The securing tabs 32 enable the actuation base 16 to be axially connected to the knob 30 of the mechanism 20.

Rotational locking of the knob 30 and base is achieved by the tabs 32 and complementary indentations of the knob 30 (i.e., a set of ridges 38 that extend axially parallel to one another on the inner surface of the knob 30 and the outer surface of the tabs 32 of the base 16).

In such a mechanism 20, the housing 28 and sheath 24 are fixed to be able to rotate and translate.

To this end, the housing 28 is further held on the sheath 24 by at least one thickened material portion 50 located between the sheath 24 and the housing 28, so that the sheath 24 and the housing 28 are at least fixed to be able to translate.

In other words, the thickened material portion 50 ensures a press fit of the housing 28 around the sheath 24, thereby improving retention of the housing and sheath, particularly in terms of wear and rotation relative to each other. Furthermore, the use of a thickened material portion 50 between the housing 28 and the sheath 24 (in other words in the inner region of the mechanism 20) enables a good visual appearance of the mechanism 20 to be maintained.

Accordingly, lofted material portions 50 may be positioned on an inner surface 52 of shell 28 (the embodiment shown herein), or on an outer surface 46 of jacket 24 (not shown), or on both an inner surface 52 of shell 28 and an outer surface 46 of jacket 24 (not shown).

For example, the thickened material portion may be a single thickened portion 50. Advantageously, the thickened material portion may be a thickened portion 50, such as a protrusion, extending around the entire periphery of the inner surface 52 of the housing 28 and/or the entire periphery of the outer surface 46 of the jacket 24, for example.

Mechanism 20 may also include a plurality of thickened material portions 50 distributed on an inner surface 52 of housing 28 and/or outer surface 46 of jacket 24.

The thickened material portions 50 can be discrete points distributed across the entire inner surface 52 of the shell 28 and/or across the entire outer surface 46 of the jacket 24.

The thickened material portions 50 can also be discrete points distributed around the entire perimeter of the inner surface 52 of the shell 28 and/or the entire perimeter of the outer surface 46 of the jacket 24 to form, for example, discontinuous protrusions.

Alternatively, there may be a thickened portion 50, such as a protrusion, extending around the entire perimeter of the inner surface 52 of the housing 28 and/or the entire perimeter of the outer surface 46 of the jacket 24.

In the embodiment shown here, the at least one thickened material portion 50 is two material projections 50 arranged around the periphery of the inner surface 52 of the housing 28, at the lower part of the housing 28 and of the jacket 24, where there are the two assembly points 40 mentioned below.

In the embodiment shown here, the housing 28 and the sheath 24 are both made of plastic material, and in addition they merge at least one point, the so-called assembly point 40, to be fixed so as to be able to rotate and translate.

The housing and sheath, which were previously two separate components, now form a single component and are permanently connected together at the at least one assembly point. This is achieved in particular by mixing the plastic materials of the housing and the sheath at the assembly point.

Advantageously, in the embodiment illustrated here, the mechanism 20 comprises two diametrically opposite assembly points 40.

The two assembly points 40 are arranged on the housing 28 and on a lower portion of the sheath 24 opposite to an upper portion comprising an opening 42 through which the cosmetic product can exit.

Thus, the two assembly points 40 are visible on the outer surface 44 of the housing 28.

In particular, in the embodiment shown here, each of the assembly points 40 is disposed on an outer surface 44 of the housing 28 and an outer surface 46 of the jacket 24.

The assembly points 40 are in the form of concave triangles having an upper apex 48 (i.e., an apex oriented toward the upper portion including the opening).

Advantageously, said at least one assembly point 40 is obtained by a method for obtaining said at least one assembly point, comprising a step of obtaining said at least one assembly point 40 by welding (such as, for example, hot stamping).

The hot stamping may be obtained by applying, tapping at least one heat-controlled punch on the outer and/or inner surface of the housing 28 and/or the jacket 24. The application time of the one or more punches is defined in accordance with the size of the mechanism 20, the type of plastic material, the thickness of the housing 28 and/or sheath 24, the desired degree of final fusion between the housing 28 and sheath 24.

To achieve the illustrated embodiment, two diametrically opposed triangular shaped punches are struck on the outer surfaces 44, 46 of the housing 28 and sheath 24.

In this manner, the shell 28 and the sheath 24 are fused together by heating and pressing the area forming the assembly point 40. In other words, in this region, the plastic materials of the housing 28 and the jacket 24 melt under heat and mix to form the assembly point 40, in particular after cooling of this region. The pressure applied during the stamping creates a mark forming the assembly point 40.

Melting of the housing 28 and sheath 24 may be detected by mixing of the materials of the housing 28 and sheath 24.

In the case of differently colored housings 28 and sheaths 24, the assembly points 40 may exhibit a color difference from the rest of the housing 28 and sheaths 24 due to the mixing of the two plastic materials. Thus, the assembly points 40 are visible. This color change is particularly noticeable when the assembly points 40 are located on the outer surfaces 44, 46 of the housing 28 and the jacket 24. This color difference is particularly noticeable in the area of the housing 28 adjacent to the jacket 24 and in the area of the jacket 24 adjacent to the housing 28.

The assembly points 40 may also be seen by indentation marks left by stamping on the outer surface 44 of the housing 28 and/or the outer surface 46 of the jacket 24.

Advantageously, the at least one assembly point 40 may exhibit a pattern, such as a logo, a letter, text or any other suitable pattern.

In the case of a plurality of assembly points 40, these may be distributed around the circumference of the housing 28, as illustrated here with two assembly points 40.

The assembly points 40 may also be distributed over the entire height of the housing 28 (not shown).

The distribution may be a regular distribution or a random distribution.

In another embodiment, not shown, the mechanism 20 may also include a single assembly point 40.

The presence of a thickened portion between the housing and the sheath and/or the fusion between these two components enables an advantageously simple, reliable and economical connection between the housing and the sheath, in contrast to known techniques such as clamping or gluing.

In practice, it is possible to assemble the two parts by clamping, but this is often not sufficient, in particular at the level of making the axial connection.

Another solution for assembling these two parts is the gluing technique. However, when the two parts are assembled by gluing, the use of glue poses a risk of contamination of the cosmetic product by the glue, the quantity and distribution of which are difficult to control with high precision during assembly.