CN116096271A

CN116096271A - Wiper for containers containing products, in particular cosmetic products

Info

Publication number: CN116096271A
Application number: CN202180051982.5A
Authority: CN
Inventors: 斯特凡·勒鲁
Original assignee: LOreal SA
Current assignee: LOreal SA
Priority date: 2020-08-25
Filing date: 2021-08-19
Publication date: 2023-05-09
Also published as: FR3113571B1; US20230320474A1; EP4203744A1; EP4203744B1; FR3113571A1; WO2022043177A1

Abstract

The wiper is intended to be equipped with a container containing a product, in particular a cosmetic product. The wiper comprises a tubular coupling body (12), a wiping member (14) supported by the coupling body and defining a wiping aperture (16) having a passage section smaller than that of the coupling body, and at least one retention bump (18) protruding from the coupling body towards the outside. The outer diameter of the retention bump (18) is greater than or equal to the axial distance between the wiping aperture (16) of the wiping member and the positive end face (12 a) of the wiper, which is axially located on one side of the retention bump. The coupling body (12) comprises at least one end portion (20) axially between the front face (12 a) and a bearing surface (18 a) of the retention ridge oriented axially towards the wiping member (14), the at least one end portion having a thickness decreasing in the direction of the front face (12 a).

Description

Wiper for containers containing products, in particular cosmetic products

The present invention relates to a wiper intended to be equipped with a device for packaging and applying products, in particular cosmetic products.

"cosmetic product" is understood as a product as defined in the 93/35/EEC instructions on cosmetic products by the european society and the council of europe 11 and 30 a 2009.

It may be, in particular, a cosmetic composition, a cosmetic primer (or "base coat"), a composition applied to another product (or "top coat"), or a cosmetic treatment composition.

More specifically, packaging and application devices equipped with a wiper according to the present application are intended to apply a cosmetic product (in particular a make-up or care product) to keratin materials and/or keratin fibres, and to apply mascara in particular to the eyelashes.

"keratin materials" are preferably understood as human keratin materials, in particular skin appendages, more particularly keratin fibres.

"keratin fibres" are understood in particular as the eyelashes and/or eyebrows, preferably the eyelashes. For the purposes of this application, this term "keratin fiber" also extends to synthetic false eyelashes.

"mascara" is understood to mean a composition intended to be applied to the eyelashes or false eyelashes.

The packaging and applicator may also be intended for applying a fluid lip product, such as a lip gloss or a lip gloss.

The packaging and applicator according to the present application is also applicable to other fluid products such as eye shadows, concealers or skin tone correction agents, liquid foundations, or nail varnishes.

Typically, the application of cosmetic products involves depositing a desired amount of a substance onto the intended keratin surfaces to achieve the desired effect.

Conventionally, packaging and applicators comprise: a container for storing a product, the container being provided with a neck; and an applicator removably mounted between a position for withdrawing the product contained in the container and an application position in which the applicator is separate from the container. The applicator includes a product applicator member (e.g., a mascara brush or eyeliner) that is immersed in the product contained in the container in a withdrawn position of the applicator.

A wiper is coupled to the neck of the storage container, the wiper comprising a wiping member, the wiping member being manufactured, for example, in the form of an annular lip, and the applicator member rubbing against the wiping member when the applicator is introduced into or removed from the container.

Conventionally, the wiper comprises a tubular coupling body supporting the wiping member and provided at its upper end with a radial flange mounted axially bearing against the upper end face of the neck of the container. The flange defines an upper front face of the wiper. The outer diameter of the applicator member of the applicator is substantially less than or equal to the inner diameter of the coupling body of the wiper. The "outer diameter of the applicator member" is understood to be the total diameter of the applicator member, that is to say the diameter of the core and of the application elements protruding from the core in the undeformed state.

At present, in particular for the application of mascara, it is necessary to be able to propose an applicator equipped with an applicator member of increased external diameter, which in turn becomes greater than the internal diameter of the coupling body of the wiper.

After use, when the applicator is returned into the container, if the applicator member is still loaded with product, the radial friction that occurs between said member and the coupling body of the wiper causes the product to deposit on the radial flange of the wiper and thus causes contamination and fouling.

Furthermore, this fouling problem may also occur in the case of an applicator member equipped with an applicator having an outer diameter equal to the inner diameter of the coupling body of the applicator.

To remedy such fouling, one solution includes increasing the inner diameter of the coupling body of the wiper so that the inner diameter remains greater than the outer diameter of the applicator member of the applicator.

However, this makes it necessary to increase the diameter of the neck of the container and thus the overall diameter of the container.

The main drawback of this solution is therefore that special moulds have to be manufactured to produce these larger containers.

Furthermore, this makes it necessary to package a larger quantity of product in such a container. Finally, the use of larger containers may result in users having a negative perception of the appearance of the container.

The present invention aims to overcome these disadvantages.

The present invention relates to a wiper intended to be equipped with a reservoir containing a product, in particular a cosmetic product, comprising a tubular coupling body, a wiping member supported by the coupling body and defining a wiping aperture having a passage section smaller than that of the coupling body, and at least one retention bump protruding from the coupling body towards the outside.

According to a general feature, the outer diameter of the retention bump is greater than or equal to the axial distance between the wiping aperture of the wiping member and the positive end face of the wiper, which is axially located on one side of the retention bump.

According to another general feature, the coupling body comprises at least one end portion axially between the front face and a bearing face of the retention bump oriented axially towards the wiping member, the at least one end portion having a thickness decreasing in the direction of the front face.

According to another general feature, the retention ridge is axially arranged at a distance from a front face which is laterally retracted towards the inner side with respect to the retention ridge.

The expression "axially arranged at a distance" is understood to mean that the retention bump is located at a non-zero axial distance from the front end face of the wiper. In other words, the retention bump is axially spaced from the front face of the wiper.

The coupling body may be fully accommodated inside the neck of the associated storage container, taking into account the construction of the wiper.

This makes it possible to fasten the wiper inside the neck of the storage container at a non-zero distance from the upper positive end surface of the neck and thereby free the portion of the inner surface of the neck adjacent to the upper end.

When the product applicator is introduced into the storage container, the applicator member of the applicator in turn rubs against the wiper in a region axially at a distance from the upper front face of the neck of the container, so that the problems of contamination and fouling can be eliminated without increasing the size of the neck.

Since there is no wiper in the upper part of the neck of the container, it is also possible to increase the lateral dimension of the applicator member of the applicator by a value equal to the thickness of the wiper.

Furthermore, the special shape of the end portion of the coupling body of the wiper makes it possible to limit the risk of the applicator member of the applicator getting stuck when it is introduced into the container equipped with the wiper, in particular when the applicator is introduced in an inclined manner.

Preferably, the end portion of the coupling body of the wiper has a gradually decreasing thickness. This end portion may have a beveled, in particular frustoconical, shape.

Advantageously, the thickness of the end portion of the coupling body of the wiper is at least at the front face.

In one embodiment, the lateral space requirement of the coupling body of the wiper is defined by the retention ridge. Thus, no portion of the coupling body extends radially beyond the retention ridge.

In another embodiment, the lateral space requirement of the coupling body is defined by a support flange of said body, which extends obliquely from the front end face of the wiper.

Preferably, the coupling body of the wiper may have an outer surface from which the retention ridge extends, the outer surface being free of inflection points at least between the retention ridge and the front face. The outer surface of the coupling body thus extends completely axially at least in this region.

The coupling body may have an outer diameter between the front face and the retention ridge that is greater than an outer diameter of the body between the retention ridge and the wiping member.

In one embodiment, the bearing surface of the retention bump extends radially. Alternatively, the bearing surface may extend obliquely on one side of the wiping member. This increases the force for coupling the wiper to the associated storage container.

Preferably, the wiper is manufactured in one piece, in particular by moulding. Alternatively, the wiper may be made in several pieces, for example by providing a wiping member attached to the coupling body.

The invention also relates to a device for packaging and applying a product, in particular a cosmetic product, comprising: a storage container for said product, the storage container being equipped with a neck; an applicator provided with at least one applicator member and removably mounted between a withdrawn position, in which the applicator member is inside the storage container, and an application position, in which the applicator is separated from the container; and a wiper as defined above secured inside the neck of the reservoir, said applicator member of the applicator passing through the wiper when said applicator is separated from the reservoir.

Said retention ridge of the wiper engages in at least one groove in the neck of the storage container, the front face of the wiper being axially retracted inside the neck relative to the front face of said neck.

Advantageously, the width of the front face of the wiper is less than or equal to the outer diameter of the distal end of the applicator member of the applicator.

This further reduces the risk of the applicator member of the applicator getting stuck on the wiper when it is introduced into the container.

In one embodiment, the outer diameter of the applicator member of the applicator may be greater than the inner diameter of the coupling body of the wiper and less than the inner diameter of the neck of the storage container.

The invention will be better understood from a detailed description of an embodiment given by way of a purely non-limiting example and illustrated by the accompanying drawings, in which:

figure 1 is a front view of a wiper according to a first exemplary embodiment of the present invention,

figure 2 is a cross-sectional view along the axis II-II in figure 1,

fig. 3 is a cross-sectional view of the packaging and applicator, equipped with the wiper of fig. 1 and 2 in a closed position,

figure 4 is a detail view of figure 3,

[ FIG. 5]

Fig. 6 is a detailed view of the device of fig. 3, showing the introduction of an applicator into the container of the device,

figure 7 is a front view of a wiper according to a second exemplary embodiment of the present invention,

figure 8 is a cross-sectional view along axis VIII-VIII in figure 7,

FIG. 9 is a cross-sectional view of a wiper according to one exemplary embodiment, an

Fig. 10 is a cross-sectional view of a wiper according to another exemplary embodiment.

Fig. 1 and 2 show a wiper, indicated as a whole by 10, intended to be equipped with a storage container for a product, in particular a cosmetic product.

The wiper 10 has a longitudinal axis X-X'. The wiper 10 is shown in a position that is assumed to be vertical.

In the following description, the directions "axial" and "transverse" are defined with reference to a standard orthogonal reference frame, which includes:

a vertical axis X pointing from the bottom to the top,

a horizontal axis Y perpendicular to the vertical axis X, and

a horizontal axis Z perpendicular to the axes X and Y.

The axial direction is defined with reference to a vertical axis X and the transverse direction is defined with reference to a plane perpendicular to the vertical axis X and containing axes Y and Z.

The wiper 10 includes: a tubular body 12 having a longitudinal axis X-X' for coupling in the neck of an associated container; and a wiping member 14 extending from the body. The wiping member 14 here has a frustoconical shape. The wiping member 14 defines a wiping aperture 16 having a channel cross-section smaller than the channel cross-section of the body 12. The wiper 10 further includes retention bumps 18 that protrude radially from the coupling body 12.

The body 12, wiping member 14 and ridge 18 are integrally formed. In other words, the body 12, the wiping member 14 and the ridge are made in one piece. The wiper 10 is manufactured in one piece, in particular by moulding. By way of indication, the wiper 10 may be made of, for example, a rigid material (e.g., PE, PP, PET, etc.).

The coupling body 12 of the wiper extends along an axis X-X'. The axis X-X' forms an axis of extension of the body 12. The body 12 is axially delimited by an upper front face 12a. The front face 12a forms the upper front face of the wiper 10. The front face 12a is axially located on the opposite side of the wiping member 14 relative to the protuberance 18. The front face 12a here extends transversely.

In the illustrated embodiment, the body 12 has a circular cross-section. In variants, the body 12 may have a polygonal (in particular square) or elliptical cross-section.

Since the body 12 has a circular cross-section in this example, in the following description the term "transverse" is equivalent to the term "radial".

The wiping member 14 axially continues the body 12. The wiping member 14 axially continues the body 12 on the opposite side of the radial front face 12a. The wiping member 14 extends radially towards the inside and axially downwards. The wiping member 14 is axially delimited by a lower front face 14a. The front face 14a forms the lower front face of the wiper 10. The front faces 12a, 14a define the axial height of the wiper 10. The wiping aperture 16 opens to the front face 14a.

The wiper ridge 18 is arranged to axially bear against an associated reservoir and to couple the wiper 10, as will be described in more detail below.

The protuberance 18 protrudes radially outward from the outer surface 12b of the coupling body. A protuberance 18 extends from the outer surface 12 b.

The protuberance 18 is located axially at a distance from the front face 12a of the body, i.e. at a non-zero axial distance from the front face 12a. The protuberance 18 is axially delimited by a lower bearing surface 18a and an upper retention surface 18b on the opposite side of the bearing surface 18 a. The bearing surface 18a is here radial. In a variant, the bearing surface 18a may extend obliquely downwards. The retention surface 18b here has a rounded shape. In a variant, the retention surface 18b may be radial. The retention surface 18b is oriented axially toward the front face 12a of the body. The raised upper retention surface 18b is located axially at a distance from the front face 12a of the body. The bearing surface 18a is axially oriented toward the wiping member 14.

In the illustrated embodiment, the protuberance 18 has an annular shape. Alternatively, the ridges 18 may be discontinuous in the circumferential direction. In a variant, it is also possible to provide at least two (upper and lower) retention protuberances which are axially spaced apart from each other, the upper protuberances being axially held at a distance from the front face 12a of the coupling body.

Outer diameter D of ridge 18 _ext Greater than or equal to the axial distance H between the wiping aperture 16 of the wiping member and the front face 12a of the coupling body ₁ 。

In the embodiment shown, the passage section of the wiping aperture 16 is constant. On one side of the wiping hole 16, an axial distance H ₁ The measurement is made with reference to the front face 14a to which the wiping hole opens. Alternatively, if the passage section of the wiping hole 16 is variable, the axial distance H ₁ The measurement is carried out with the area of the wiping hole having the smallest diameter as a reference.

Inner diameter D of the coupling body 12 of the wiper _int May be greater than or equal to the axial distance H ₁ . Inner diameter D of coupling body 12 _int Measured over a cylindrical region of the body. Inner diameter D _int May for example be measured axially at the bulge 18. Inner diameter D _int Commonly referred to as the "well diameter" of the wiper.

The coupling body 12 comprises an end portion 20 axially between the protuberance 18 and the front face 12a of said body, which end portion has a thickness that varies along its length. The thickness of the end portion 20 decreases in the direction of the front face 12a of the tubular body. The thickness of the end portion 20 is minimal in the area of connection to the front face 12a. In other words, the thickness of the end portion 20 is smallest at the front face 12a. The thickness of the end portion 20 gradually decreases in the direction of the front face 12a. The end portion 20 is beveled. The end portion 20 here has a frustoconical shape and flares outwardly.

In the illustrated embodiment, the reduced thickness end portion 20 extends over the entire area of the tubular body 12 axially between the protuberance 18 and the front face 12a. The end portion 20 is axially delimited by the front face 12a. Alternatively, in this region axially between the protuberance 18 and the front face 12a, the tubular body 12 may, for example, have a constant thickness portion continued by the end portion 20. In this case, the end portion 20 may also be axially delimited by the front face 12a. In another variant, it may be provided that the end portion 20 is continued by a constant thickness portion delimited by the front face 12a.

The front face 12a of the wiper is retracted inwardly with respect to the protuberance 18, taking into account the lateral or radial direction. The outer surface 12b of the coupling body extends entirely axially. In other words, the outer surface 12b is straight. Only the protuberance 18 protrudes radially from the outer surface 12b of the coupling body. The outer surface 12b has no protrusions other than the ridges 18. The radial space requirement of the coupling body 12 is defined by the protuberance 18. At the upper end of the coupling body 12, the coupling body has no radial flange protruding from the outer surface 12b of the body towards the outside. More generally, the outer surface 12b has no inflection points.

In the embodiment shown, the coupling body 12 has a first outer diameter between the front face 12a and the bulge 18 (that is to say in this case in the end portion 20). The coupling body 12 has a second outer diameter, smaller than the first outer diameter, between the protuberance 18 and the area connected to the wiping member 16.

In this example, the outer surface 12b thus has a stepped shape with a large diameter axial region axially above the protuberance 18 and a small diameter axial region axially below the protuberance. Alternatively, a coupling body 12 having only one outer diameter may be provided.

Fig. 3 shows a device 30 for packaging and applying a cosmetic product P, comprising a storage container 32 containing said product and equipped with a wiper 10, and an applicator 34 for the product.

The container 32 extends along a longitudinal (in this case vertical) geometric axis 36. The axis 36 of the container is coaxial with the axis X-X' of the wiper 10. The container 32 defines, on the inside, an internal reservoir 38 for storing the cosmetic product P. The container 32 includes a lower end forming a bottom and an opposite open end forming a neck 40. The neck 40 is separated from the perimeter of the container by an annular shoulder. The free upper edge of the container 32 defines an access opening for accessing the reservoir 38. More specifically, the neck 40 defines this opening.

In the illustrated embodiment, the container 32 has a circular cross-section. In variants, the container 32 may have a polygonal (in particular square) or oval cross-section.

The applicator 34 includes a stem 42, a gripping member 44 secured to the stem, and an applicator member 46 mounted at the free end of the stem.

The gripping member 44 of the applicator is configured to form a lid that can removably close the container 32. To provide for removable mounting on the container 32, the gripping member 44 in this case includes threads that engage external threads on the neck 40 of the container. Alternatively, other types of removable fastening may be provided, such as clip fastening.

The applicator member 46 is fastened to the stem 42 on the opposite side from the grip member 44. In the mounted position on the container, the axis 43 of the rod 42 is coaxial with the axis 36 of the container. In fig. 3, the applicator member 46 has been schematically illustrated.

The applicator member 46 may be, for example, a molded mascara brush, or be formed of twisted arms with bristles held therebetween. Alternatively, the applicator member 46 may be provided for applying other types of products than mascara, such as lipsticks or eyeliners. Thus, the applicator member 46 may have a form other than a brush or comb, such as a straight or curved applicator tip, foam, felt, flocked end piece, frit, textile material, sponge, or the like.

Applicator member 46 has an outer diameter D ₄₆ The outer diameter may be constant or variable along its length (as is the case in the illustrated exemplary embodiment). In the case of variable outer diameter, outer diameter D ₄₆ The value of (2) varies between a minimum value and a maximum value.

The wiper 10 is mounted in the neck 40 of the container. As shown more clearly in fig. 4, in the mounted position, the protuberance 18 of the wiper is engaged in a recess 50 provided in the inner surface of the neck 40 of the associated storage container and couples the wiper to the container.

The recess 50 is axially delimited by a bearing surface 50a, which is radial here, against which the raised bearing surface 18a of the wiper bears axially, and an upper retention surface 50b opposite the bearing surface 50 a. The retention surface 50b bears against the raised retention surface 18b of the wiper. The retention surface 50b here has a frustoconical shape. In a variant, the retention surface 50b may be radial.

The inner diameter of the neck 40 of the container axially below the recess 50 is less than or equal to the inner diameter above the recess 50.

In the installed position, the wiper 10 is fully contained within the container 32. The front face 12a of the tubular body of the wiper is offset axially towards the inside with respect to the upper front face 40a of the neck of the container. The wiper 10 leaves the upper front face 40a of the neck of the container completely free. The wiper 10 also leaves the upper portion of the inner surface of the neck adjacent this front face 40a completely free.

The protuberance 18 and the end portion 20 of the tubular body of the wiper are fully housed in the neck 40 of the container. In the illustrated exemplary embodiment, the tubular body 12 of the wiper is fully received in the neck 40 of the container. The wiping member 14 extends in both the neck 40 and the reservoir 38 of the container.

When the gripping member 44 is in a position closing the container 32 (this position also corresponds to the position of extraction of the product by means of the applicator member 46), a portion of the stem 42 and a portion of said applicator member 46 are located inside the reservoir 38 of the container. The rod 42 of the applicator passes through the wiper 10.

At each use, the user separates the gripping member 44 of the applicator from the container 32 and uses an axial removal motion to remove the applicator 34 from the container. During this removal movement, excess product loaded on the applicator member 46 is removed as it passes through the wiper 10 and in particular through the wiping aperture 16.

The inner diameter of the wiping aperture 16 is smaller than the outer diameter D of the applicator member 46 ₄₆ Is a maximum value of (a). The inner diameter of the wiping aperture 16 is in accordance with the applicator member 46Is selected according to the desired degree of wiping. The inner diameter of the wiping aperture 16 may also be smaller than the outer diameter D of the applicator member 46 ₄₆ Is a minimum of (2).

In the illustrated embodiment, the outer diameter D of the applicator member 46 ₄₆ Is also greater than the inner diameter D of the tubular body 12 of the wiper _int . In a variation, an outer diameter D of the applicator member 46 may be specified ₄₆ Is smaller than the inner diameter D of the tubular body 12 of the wiper _int . Outer diameter D of applicator member 46 ₄₆ Is smaller than the inner diameter of the neck 40 of the container.

After use, as illustrated in fig. 5, when the applicator 34 is returned into the container 32, the applicator member 46 of the applicator more easily enters the neck 40 of the container without radial interference therebetween. In fig. 5, the direction of introduction of the applicator 34 is indicated by arrow F.

During this introduction, a radial gap 51 exists between the applicator member 46 of the applicator and the neck 40 of the container. The applicator member 46 is in radial contact with the wiper 10 in a region axially spaced from the front face 40a of the neck. As a result, any deposition of product on the front face 40a of the neck and fouling of this face is avoided.

Furthermore, as shown in fig. 6, if the user introduces the applicator 34 in an inclined manner with respect to the axis 36 of the container, the risk of the applicator member 46 getting stuck on the upper front face 12a of the wiper is limited due to the beveled end portion 20, which allows the tubular body 12 to have a smaller thickness at the front face 12a.

To this end, the width of the upper face 12a of the wiper is advantageously less than or equal to the outer diameter value of the distal end of the applicator member 46.

The wiper 10 illustrated in fig. 7 and 8, in which like elements have like reference numerals, differs from the first example primarily in the shape of the raised lower bearing surface 18a and the design of the wiping member 52.

The raised bearing surface 18a extends obliquely, i.e. downwardly, on one side of the wiping member 52. The recess in the neck of the container has a correspondingly shaped bearing surface in which the protuberance 18 engages.

The inclined orientation of the raised bearing surface 18a promotes retention of the wiper 10 in the neck of the container. Such an orientation may be provided, for example, when the wiper 10 is made of a flexible material (e.g., nitrile rubber). However, when the wiper is made of a rigid material, it is still possible to provide such an orientation of the raised bearing surface 18 a.

The wiping member 52 of the wiper extends from the coupling body 12. The wiping member 52 extends radially toward the inside and is located axially at a distance from the lower front face 12c axially located on the opposite side of the upper front face 12a. In this example, the front faces 12a, 12c define an axial height of the wiper 10.

The wiping member 52 is here in the form of a wavy annular lip, the inner edge of which defines a circular wiping orifice (not visible) having a passage section smaller than that of the coupling body 12.

In this example, the wiper 10 further includes an annular flange 54 that continues the outer surface 12b of the coupling body and extends obliquely upward. The flange 54 is configured to form a stop that can axially bear against a shoulder of the container, thereby separating the neck 40 of the container from its perimeter.

In this example, the outer diameter D of the protuberance 18 _ext Is also greater than or equal to the axial distance H between the wiping aperture of the wiping member and the front face 12a of the coupling body ₁ . Inner diameter D of the coupling body 12 of the wiper _int Greater than or equal to the axial distance H between the protuberance 18 and the flange 54 ₂ 。

In each of the above examples, the protuberance 18 is located axially at a distance from the front face 12a of the body.

The exemplary embodiment illustrated in fig. 9 and 10, in which like elements have like reference numerals, differs from the example in fig. 2 and 8, respectively, in that the ridge 18 of the wiper extends axially to the front face 12a of the coupling body. The ridge 18 continues the front face 12a radially outwards. The raised retention surface 18b and the front face 12a of the coupling body are coplanar.

Claims

1. Wiper intended to be equipped with a storage container containing a product, in particular a cosmetic product, comprising: a tubular coupling body (12); a wiping member (14; 52) supported by the coupling body and defining a wiping aperture (16) having a passage section smaller than that of the coupling body; and at least one retention protuberance (18) protruding from the coupling body (12) towards the outside; the coupling body (12) comprises at least one end portion (20) axially between a front end face (12 a) of the wiper axially on one side of the retention bump and a bearing surface (18 a) of the retention bump (18) oriented axially towards the wiper member (14; 52), the at least one end portion having a thickness decreasing in the direction of the front end face (12 a), characterized in that the outer diameter of the retention bump (18) is greater than or equal to the axial distance between the wiping hole (16) of the wiper member and the front end face (12 a) of the wiper, the retention bump (18) being axially arranged at a distance from the front end face (12 a), the front end face (12 a) being laterally retracted towards the inside with respect to the retention bump (18).

2. Wiper according to claim 1, wherein the end portion (20) of the coupling body has a gradually decreasing thickness.

3. Wiper according to claim 1 or 2, wherein the thickness of the end portion (20) of the coupling body is at least at the front end face (12 a) minimal.

4. A wiper according to any one of the preceding claims, wherein the lateral space requirement of the coupling body (12) is defined by the retention ridge (18).

5. A wiper according to any one of claims 1 to 3, wherein the lateral space requirement of the coupling body (12) is defined by a support flange (54) of the body, which extends obliquely from the front end face (12 a) of the wiper.

6. Wiper according to any one of the preceding claims, wherein the coupling body (12) has an outer surface (12 b) from which the retention ridge (18) extends, said outer surface being free of inflection points at least between the retention ridge and the front end face (12 a).

7. Wiper according to any one of the preceding claims, wherein the coupling body (12) has an outer diameter between the front end face (12 a) and the retention ridge (18) that is greater than the outer diameter of the body between the retention ridge (18) and the wiping member (14).

8. A wiper according to any one of the preceding claims, wherein the bearing surface (18 a) of the retention ridge (18) extends radially.

9. Wiper according to any one of claims 1 to 7, wherein the bearing surface (18 a) of the retention bump (18) extends obliquely on one side of the wiping member (14; 52).

10. Wiper according to any one of the preceding claims, wherein the retention ridge (18) has an annular shape.

11. Wiper according to one of the preceding claims, which is manufactured in one piece, in particular by moulding.

12. Device for packaging and applying a product, in particular a cosmetic product, comprising: -a storage container (32) for said product, said storage container being equipped with a neck (40); an applicator (34) provided with at least one applicator member (46) and removably mounted between a withdrawn position, in which it is located inside the storage container (32), and an application position, in which it is separated from the container; and a wiper (10) according to any one of the preceding claims, which is fixed inside the neck (40) of the storage container, the applicator member (46) of the applicator passing through the wiper (10) when the applicator is detached from the storage container, the retention ridge (18) of the wiper engaging in at least one groove (50) in the neck (40) of the storage container, the front end face (12 a) of the wiper being axially retracted inside the neck (40) with respect to the front end face (40 a) of the neck.

13. The device of claim 12, wherein a width of the front face (12 a) of the wiper is less than or equal to an outer diameter of a distal end of the applicator member (46) of the applicator.

14. The device according to claim 12 or 13, wherein the outer diameter of the applicator member (46) of the applicator is larger than the inner diameter of the coupling body (12) of the wiper and smaller than the inner diameter of the neck (40) of the storage container.