FR3133842A1 - Notch conditioning device - Google Patents

Abstract

Notch packaging device The invention relates to a cosmetic product packaging device comprising a first part, the first part comprising a neck, the neck comprising a given surface, the given surface having a thread. The given surface is further provided with a radially projecting ramp (34), the ramp (34) having an increasing radial dimension in a screwing direction of the thread up to a notch (36), the ramp (34) being arranged on the given surface so that a surface interacting with the thread comes into contact with the ramp (34). Figure for abstract: Fig 4

Description

Notch conditioning device

The present invention relates to a cosmetic product packaging device comprising a first part, the first part comprises a neck, the neck comprising a given surface, the given surface having a thread.

By packaging device we mean any packaging which allows the sale, transport, protection and storage of the product it contains.

A cosmetic product is advantageously a product as defined in EC Regulation No. 1223/2009 of the European Parliament and of the Council, dated November 30, 2009, relating to cosmetic products.

The product contained in the device according to the invention is, for example, a makeup product, such as mascara, eyeliner or any other viscous cosmetic product.

The thread allows a second part to be joined to the first part by screwing.

It is known to produce mascara packaging and application devices with, on the container at the base of the neck a relief and, on the closing capsule, a fin which can cross the relief by elastic deformation in order to generate a sensation tactile and/or audible, felt by the consumer as confirming the closure of the container.

It turns out that the plastic material wears out and deforms plastically by undergoing a matting phenomenon following multiple successive openings of the container, so that said sensation tends to decrease in intensity, or even become imperceptible.

Document EP 2 253 554 A1 proposes, instead, that one of the parts includes an elastically deformable tab and the other part has a relief, the tab and the relief being arranged to cooperate in such a way that the rotation of the second piece relative to the first causes the tab to cross the relief by bending, with a component of flexion parallel to the axis of rotation, this crossing being accompanied by the production of a tactile and/or sound sensation which can be felt by the user.

However, this requires that each of the two pieces have a particular shape, one with the tab and the other with the relief, so that this makes the production of the pieces more complex.

In addition, there is a risk of wear when bending the leg.

An aim of the invention is therefore to obtain a cosmetic product packaging device offering sensory feedback of screwing to a simple and solid user.

For this purpose, the subject of the invention is a conditioning device of the aforementioned type, in which the given surface is further provided with a radially projecting ramp, the ramp having an increasing radial dimension in a screwing direction of the thread until 'to a notch, the ramp being arranged on the given surface so that a surface interacting with the thread comes into contact with the ramp.

The progressive increase in the radial dimension of the ramp leads to an increase in the screwing force. The user is therefore informed of the progress of the screwing by this hard passage. In addition, the ramp is capable of interacting with a surface that does not have additional relief, such as a fin or a flexible tab. In addition, the ramp is not a deformable part, likely to become permanently deformed. Finally, the contact between the ramp and the surface interacting with the thread being radial extending along a circumferential band, the contact surface between these two elements is large, which makes it possible to avoid matting of the parts over time. Finally, when the surface interacting with the thread comes into contact with the ramp, a phenomenon of localized elastic ovalization of the part presenting this surface occurs, maintaining the deformation of the part presenting the surface in the elastic domain making it possible to improve the durability and reliability of the generation of tactile sensations, felt by the consumer as confirming the closure of the container.

The device according to the invention may comprise one or more of the following characteristics, taken individually or in any technically possible combination:

- the neck has a distal end, the distal end of the neck being one end of the first part, the thread being arranged between the ramp and the distal end of the neck;

This allows the hard point to be towards the end of the screwing.

- the given surface is an exterior surface of the neck;

Such geometry is suitable for any bottle, such as lip gloss, foundation, mascara or eyeliner.

- the first part is a container capable of containing a cosmetic product;

Screwing until the hard notch passes allows, for example, to indicate the correct closure of the container.

- the ramp has a reduction in the radial dimension after the notch;

The sudden change in radial dimension after the notch causes a clicking sensation by the variation in resistance, in particular by the relaxation of the surface cooperating with the thread.

- the ramp is such that crossing the notch by a surface interacting with the thread results in a tactile production likely to be felt by a user;

The clicking sensation informs the user of the progress of the screwdriving.

- the packaging device comprises a second part having a surface having a complementary thread capable of cooperating with the thread of the first part to allow closing of the packaging device by screwing the second part onto the first part, the ramp being arranged so that the surface of the second part comes into contact with the ramp when screwing the second part onto the first part;

The second part closes the first part by screwing, the notch allowing sensory feedback to the user regarding the closure of the device.

- the second part comprises at least one protrusion projecting axially from a connected end of the second part, an interior surface of the at least one protrusion being able to come into contact with the ramp when screwing the second part onto the first piece;

The at least one protrusion contributes to increasing contact between the ramp and the second part and thus to sensory feedback to the user

- the at least one protrusion is arranged such that the at least one protrusion is the first part of the second part in contact with the ramp when screwing the second part onto the first part; and or

- the first part comprises at least one stop projecting radially downstream of the ramp, the protrusion extending against the stop in the closed position of the packaging device.

The stop marks the closure of the device.

The invention will be better understood on reading the description which follows, given solely by way of example, and made with reference to the appended drawings, in which:

there is a partial perspective view of the first part of a packaging device of one embodiment of the invention,

there is a side view of the ramp of the first room of the ,

there is a front view of the ramp of the first room of the ,

there is a sectional view of the exterior shape of the first part of the at the level of the plane P represented on the ,

there is a partial perspective view of the device according to one embodiment during screwing of the second part, shown in transparency, onto the first part, and

there is a partial perspective view of the device of the , in which the second part, shown in transparency, is screwed onto the first part.

The packaging device 10 illustrated in Figures 1 to 4 is, for example, intended to contain mascara, eyeliner or any other viscous cosmetic product.

The device 10 comprises a first part 12.

The first part 12 is, for example, a container capable of containing the cosmetic product.

The first part delimits an interior volume for receiving the cosmetic product.

The device 10 further comprises a second part 14, for example an application member.

The first piece 12 has a neck 16.

Pass 16 extends mainly around a main axis A-A’.

The main axis A-A’ extends in a main direction.

The neck 16 here delimits an access passage 18 to the interior volume.

The access passage 18 is intended to allow the partial passage of the second part 14.

The neck 16 has a distal end 20 opposite the rest of the first part 12.

The distal end 20 is one end of the first part along the main axis A-A’.

The access passage 18 is delimited at the level of the distal end 20.

The neck 16 has a thread 22 on a given surface 24, more particularly on an exterior surface of the neck 16.

Each of the threads 22 and the given surface 24 extends around the main axis A-A’.

The thread 22 has a distal end 30 and a proximal end 32.

The distal end 30 is the end of the thread 22 closest to the distal end 20 of the neck 16.

The proximal end 32 is the end of the thread 22 closest to the interface between the neck 16 and the rest of the first part 12.

The thread 22 forms a helix around the axis A-A' between the distal end 30 and the proximal end 32 on the exterior surface 24 of the neck 16.

The thread 22 has a screwing direction going from the distal end 30 towards the proximal end 32.

The direction of screwing is represented by an arrow F in the figures.

The given surface 24, here the exterior surface of the neck 16, is also provided with at least one ramp 34 projecting radially.

The or each ramp 34 is arranged on the given surface 24 so that a surface having a thread interacting with the thread 22 comes into contact with the ramp 34, more particularly at the end of screwing the threaded surface with the thread 22.

The or each ramp 34 is arranged at a distance from the proximal end 32 of the thread 22 in the main direction, for example between 1.7 mm and 2.0 mm.

Said distance is chosen according to the arrangement of the surface intended to interact with the thread and the ramp 34.

In the example shown, the given surface 24 is provided with two ramps, the ramps being the image of one another by rotation of 180° around the axis A-A'.

The given surface 24 is, for example, provided with a given number of ramps, the ramps being the image of one another by rotation of an angle around the axis A-A', the angle being equal to 360° divided by the given number of ramps.

The neck 16, more particularly the given surface 24, has an increased radial dimension at the level of the ramp(s) 34 by said ramp(s) 34.

The or each ramp 34 is adapted so that the contact between the ramp 34 and the surface having the tapping interacting with the thread 22 gradually increases from a point contact to a maximum surface contact, then, in a particular embodiment, decreases from maximum surface contact to reduced surface contact.

The contact causes a localized elastic deformation of the surface interacting with the ramp 34.

The maximum surface contact is, for example, between 4.5 mm² and 5.5 mm² for each ramp.

The maximum surface contact corresponds, for example, to a localized movement of the surface interacting with the ramp 34 with a volume of 1 mm ³ for each ramp.

Said localized displacement here causes an ovalization of said surface.

The reduced surface contact is strictly less than the maximum surface contact. The ratio of the reduced surface contact to the maximum surface contact is for example less than or equal to 0.8.

The reduced surface contact is, for example, between 3.5 mm² and 4.4 mm².

The reduced surface contact is similar, for example, to a linear contact, or alternatively to a point contact.

The reduced surface contact extends, for example, over a radial portion representing at least 30° around the axis A-A’.

The ramp 34 here has an increasing radial dimension in the screwing direction F of the thread 22 up to a notch 36.

The notch 36 forms one end of the ramp 34 in the screwing direction where the ramp 34 has a reduction in its radial dimension after the notch 36.

The notch 36 is arranged beyond the proximal end 32 of the thread 22 in the screwing direction F.

The ramp 34 is such that the crossing of the notch 36 by a tapped surface interacting with the thread 22 results in a tactile production likely to be felt by a user handling the device 10.

The ramp 34 extends between an upstream end 38 and a downstream end 40.

The radial dimension of the ramp 34 increases from the upstream end 38 to the notch 36.

The notch 36 coincides with the downstream end 40 or the radial dimension of the ramp 34 decreases strictly from the notch 36 to the downstream end 40.

In the example shown, the downstream end 40 is distinct from the notch 36. The radial dimension of the ramp 34 increases from the upstream end 38 to the notch 36 then decreases strictly from the notch 36 to the downstream end 40 .

The notch 36 is alternatively a point location or a location having an angular radial extent.

In the example shown, the notch 36 extends over a radial angular extent greater than or equal to 10°, here between 10° and 15°.

At the notch, the radial dimension of the ramp 34 is substantially constant.

Between the notch 36 and the downstream end 40, the ramp 34 here has a break 37. The radial dimension of the ramp 34 here decreases more strictly after the break 37 than before the break 37.

In the example shown, the ramp 34 has, between the start of the notch 36 and the break 37, a radial angular extent of between 30° and 35°.

The thread 22 is arranged between the ramp 34 and the distal end 20 of the neck 16. More particularly, the thread 22 is arranged between the ramp 34 and the distal end 20 of the neck 16 in the main direction.

The upstream end 38 extends substantially in alignment with the proximal end 32 of the thread 22 in the main direction.

In the example shown, the ramp 34 has a side surface 41 and an upper surface 42.

The ramp 34 extends between the upper surface 42 and a base 43 in the axial direction parallel to the main axis A-A'.

The base 43 is here perpendicular to the main axis A-A’.

The base 43 is, for example, confused with the base of the neck 16.

The lateral surface 41 extends parallel to the main axis A-A’.

The lateral surface 41 defines the radial end of the ramp 34, so that the radial dimension of the ramp 34 is measured at the level of the lateral surface 41.

The upper surface 42 extends opposite the thread 22.

The upper surface 42 connects the lateral surface 41 to a portion of the given surface 24, more particularly a cylindrical portion of the given surface 24, extending between the ramp 34 and the thread 22. More particularly, the lateral surface 41 and the upper surface 42 are connected by a fillet and the upper surface 42 and said portion of the given surface are connected, for example by a fillet.

In a first portion extending from the upstream end 38 to an intermediate vertex of the upper surface 42, for example up to the notch 36, here to the start of the notch 36 from the upstream end 36, the ramp 34 has a height, measured in the axial direction between the base 43 and the upper surface 42, increasing from the upstream end 38 towards the intermediate summit in the circumferential direction.

In the first portion, the upper surface 42 is substantially planar and forms an angle α of between 3° and 10°, more particularly equal to 5°, with the local radial direction, said radial direction being defined for each half-plane. extending from the main axis A-A' and comprising said main axis A-A'.

In the first portion, the upper surface 42 is inclined so that the interior of the upper surface is closer to the thread 22 in the main direction relative to the exterior of the upper surface.

In a second portion extending from the intermediate summit opposite the first portion, the height of the ramp 34 decreases from the intermediate summit in the circumferential direction.

More particularly, here, at the level of the notch 36, the height of the ramp 34 is substantially constant. Then, at the end of notch 36, the height of ramp 34 decreases rapidly to a quasi-linear zone up to the downstream end 40.

The quasi-linear zone extends over an angular radial extent of between 17° and 23°.

The first part 12 here also advantageously comprises at least one portion projecting radially from the given surface. Said portion here is a stop 44. The first part 12 more particularly comprises a stop 44 per ramp 34.

Each stop 44 extends at the downstream end 40 of the corresponding ramp 34.

The or each stop 44 extends in a radial plane relative to the main axis A-A’. Here, the two stops 44 extending in the same radial plane.

More particularly, the or each stop 44 comprises a surface extending along the respective radial plane, said surface forming the stop element.

The or each stop 44 forms a radially projecting stop downstream of the corresponding ramp 34.

The or each stop 44 forms a stop for movement in the circumferential direction.

The first part 12 is solid, that is to say not deformable.

The first part 12 is here made of glass.

An example of a second part 14 is, partially, shown in transparency in Figures 5 and 6.

The second part 14 is movable between a product application configuration in which the second part 14 is outside the interior volume of the first part 12 and a storage configuration in which the second part 14 is partly inserted into the interior volume and held fixed on the first part 12.

The second part 14 has a linked end 46.

The second part 14 and the first part 12 are secured in the storage configuration at the linked end 46.

In the storage configuration, the linked end 46 of the second part 14 extends around the neck 16 of the first part.

The second part 14 has a surface 47 carrying a complementary thread 48 capable of cooperating with the thread 22 of the first part 12 to allow closure, here watertight, of the device 10 by screwing the second part 14 onto the first part 12.

The second part 14 comprises, here, a gripping member 50, here also forming a stopper.

The gripping member 50 has a generally cylindrical shape.

The second part 14, here the gripping member 50, internally has the complementary tapping 48.

Surface 47 is an interior surface of the second part 14, here of the gripping member 50.

The closure here is such that it corresponds to a stopping of the second part 14 relative to the first part 12 in a precise configuration, in particular thanks to the cooperation of the second part 14 with the stop 44.

The second part 14, more particularly here the gripping member 50, is, for example, provided with at least one protrusion 52 projecting axially, more particularly at the level of the linked end 46.

More particularly, the second part 14 comprises an excrescence 52 per stop 44 of the first part 12.

Each protrusion 52 has an interior surface included in the surface 47.

The interior surface of each protrusion 52 extends in continuity with the surface carrying the tapping in the direction parallel to the main axis of the tapping 48.

Each protrusion 52 has a thickness, measured radially, equal to the thickness of the rest of the gripping member.

Each protrusion 52 also has a radial surface 54, extending along a radial plane relative to the main axis of the tapping 48.

Each protrusion 52 is adapted to extend against, more particularly so that the radial surface 54 extends against, the corresponding stop 44, when the second part 14 is entirely screwed onto the first part 12, as will be described more precisely below. -After.

The ramp 34 is arranged so that the surface 47 comes into contact with the ramp 34 during the screwing of the second part 14 on the first part 12, more particularly at the end of the screwing of the second part 14 on the first part 12.

The interior surface of each protrusion 52 is arranged to come into contact with the corresponding ramp 34, when screwing the second part 14 onto the first part 12.

The at least one protrusion is arranged such that the at least one protrusion 52 is the first part of the second part 14 in contact with the ramp 34 when the second part 14 is screwed onto the first part 12.

The second part 14 further comprises a rod extending the gripping member 50 and an application element located at one end of the rod.

In the storage configuration, the gripping member 50 is integral with the first part 12 and forms a plug by closing the interior volume of the first part 12, the rod passing through the access passage 18 of the first part 12 and the the application element being located in the interior volume.

The gripping member 50 is able to deform elastically in contact with the ramp 34.

Furthermore, in an advantageous embodiment, the rod comprises a sealing member intended to allow watertight closure of the first part 12, by screwing the second part 14 onto the first part 12.

The sealing member is, for example, a skirt arranged around the rod, close to the gripping member 50.

Alternatively, the sealing member is, for example, a compressible seal.

The rod and the application element are suitable for being engaged in the interior volume of the first part.

The application element is for example a mascara brush comprising a twisted metal core and bristles held transversely between the turns of the core or a tip, flocked or not, elastically deformable or not, or a foam, or a felt, or a paintbrush or a brush without a metal core, for example a brush or a comb made by injection of plastic material.

An example of a method of using the cosmetic product packaging device will now be described.

The device is supplied, the second part 14 being in application configuration, that is to say separated from the first part 12.

To join the first part 12 and the second part 14, a user grasps the gripping member 50 of the second part 14.

The user then screws the second part 14 onto the first part 12 by cooperation of the thread 22 and the complementary tapping 48, the screwing being carried out in the screwing direction F.

When the surface 47 presenting the complementary tapping 48, and further comprising here the interior surface of the protrusion 52, comes into contact with the ramp 34, the force to be applied to continue screwing increases by interaction, particularly in the radial direction, of the surface 47 of the second part 14 with the increase in the radial dimension of the first part 12 at the level of the ramp 34.

The contact between the ramp 34 and the surface 47 gradually increases from point contact to maximum surface contact, visible on the , then, in the present particular embodiment, decreases from maximum surface contact to reduced surface contact, visible on the .

In the embodiment shown, the interior surface of the protrusion 52 first comes into contact with the ramp 34, followed by the surface portion extending between the thread and the linked end 46.

Then, the user continues to screw the second part onto the first part.

The contact between the ramp 34 and the surface 47 increases, so that the screwing force to be applied increases.

The contact causes a localized elastic deformation of the surface 47.

The variation of the radial dimension and here of the height of the ramp then increases the contact surface between the surface 47 and the ramp 34. This allows in particular a distribution of the forces applied to the surface 47.

The ramp allows progressive deformation of the surface 47 in contact with the ramp 34, both here in the radial direction and in the direction of the main axis A-A'. This notably avoids matting of said surface by a sudden contact which does not allow this deformation.

Here, the contact between the ramp 34 and the surface 47 corresponds to the maximum surface contact when the interior surface of the protrusion 52 passes at the level of the notch 36.

Then, after the maximum surface contact and the notch have passed, the screwing force decreases.

The variation of the radial dimension and here the height of the ramp also makes it possible to reduce the contact surface between the surface 47 and the ramp 34.

In addition, the stress exerted on the surface 47 by the progressive deformation is released, here suddenly, which gives a sensation of click to the user, which informs him of the passage of the notch 36.

In the storage configuration, contact is minimal.

Furthermore, in the storage configuration, the radial surface 54 of the protrusion 52 extends against the stop 52.

Thus, the ramp causes, initially, a feeling of reinforced tightening thanks to the increase in the radial dimension of the ramp, then, secondly, a relaxation by relaxation of the stress exerted on the surface, giving a click feeling to user.

When the surface 47 crosses the notch 36, here in the screwing direction F, this results in a tactile production likely to be felt by the user handling the device 10.

Crossing the notch, and the corresponding tactile production, then indicate to the user that the second part 14 is screwed onto the first part 12, that is to say in the storage configuration of the second part 14, shown on the .

Thus, the first part 12 is closed by the second part 14.

Conversely, to use the device, the user grasps the gripping member 50 of the second part 14 and applies a force to unscrew the second part 14 from the first part 12 in the opposite direction to the screwing direction F.

The notch 36 also represents a maximum, at least local, of the radial dimension in the opposite direction to the screwing direction F.

Thus, the passage of notch 36 requires the application of a force strictly greater than the displacement force of the complementary tapping 48 on the thread 22.

Thus, the notch 36 has a function to prevent unwanted unscrewing of the second part, for example self-unscrewing or unscrewing by a child, by requiring additional force to be applied for the passage of the notch 36.

When the surface 47 crosses the notch 36, here in the opposite direction to the screwing direction F, this also results in a tactile production likely to be felt by the user handling the device 10.

The cooperation of the surface 47 with the ramp 34 then slows down the first part of the unscrewing.

The user then continues to unscrew the second part 14 from the first part 12 until the complementary thread 48 no longer cooperates with the thread 22.

The application element extends outside the first part 12.

The user can then apply the cosmetic product.

The device of the invention therefore allows sensory feedback to the user relating to the screwing of a second part onto the first part, advantageously presenting a braking function when the device opens and an anti-self-unscrewing function. .

The ramp forms rigid contact with the tapped surface, so that the parts do not deform irreversibly.

In addition, the force exerted by the user is distributed over the large contact surface between the ramp and the second part, in particular compared to the passage of a simple fin, so that the parts do not wear excessively. outstanding.

Furthermore, the second part 14 does not have a particular shape, but only a usual threaded surface. Thus, adding a ramp 34 to the first part 12 does not require adapting the design of the second part 14.

Claims (10)

Cosmetic product packaging device (10) comprising a first part (12), the first part (12) comprising a neck (16), the neck (16) comprising a given surface (24), the given surface (24) having a thread (22), in which the given surface (24) is further provided with a radially projecting ramp (34), the ramp (34) having an increasing radial dimension in a screwing direction (F) of the thread ( 22) up to a notch (36), the ramp (34) being arranged on the given surface (24) so that a surface interacting with the thread (22) comes into contact with the ramp (34). Packaging device according to claim 1, in which the neck (16) has a distal end (20), the distal end (20) of the neck (16) being an end of the first part (12), the thread (22 ) being arranged between the ramp (34) and the distal end (20) of the neck (16). Packaging device according to claim 1 or 2, in which the given surface (24) is an exterior surface of the neck (16). Packaging device according to any one of claims 1 to 3, in which the first part (12) is a container capable of containing a cosmetic product. Packaging device according to any one of claims 1 to 4, in which the ramp (34) has a reduction in the radial dimension after the notch (36). Packaging device according to claim 5, in which the ramp (34) is such that the crossing of the notch (36) by a surface (47) interacting with the thread (22) results in a tactile production capable of being felt by a user . Packaging device according to any one of claims 1 to 6, comprising a second part (14) having a surface (47) having a complementary thread (48) capable of cooperating with the thread (22) of the first part (12) to allow closing of the packaging device (10) by screwing the second part (14) onto the first part (12), the ramp (34) being arranged so that the surface (47) of the second part (14) comes into contact with the ramp (34) when screwing the second part (14) onto the first part (12). Packaging device according to claim 7, in which the second part (14) comprises at least one protrusion (52) projecting axially from a linked end (46) of the second part (14), an interior surface of the at least one protrusion (52) being capable of coming into contact with the ramp (34) when screwing the second part (14) onto the first part (12). Packaging device according to claim 8, in which the at least one protrusion is arranged such that the at least one protrusion (52) is the first part of the second part (14) in contact with the ramp (34) during the screwing the second part (14) onto the first part (12). Packaging device according to claim 8 or 9, in which the first part (12) comprises at least one stop (44) projecting radially downstream of the ramp (34), the protrusion (52) extending against the stop (44) in the closed position of the conditioning device (10).