WO2022122791A1 - Dispositif de conditionnement d'un produit, notamment un produit cosmétique, comprenant un bouchon verrouillé et déverrouillé par pression axiale - Google Patents

Dispositif de conditionnement d'un produit, notamment un produit cosmétique, comprenant un bouchon verrouillé et déverrouillé par pression axiale Download PDF

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Publication number
WO2022122791A1
WO2022122791A1 PCT/EP2021/084714 EP2021084714W WO2022122791A1 WO 2022122791 A1 WO2022122791 A1 WO 2022122791A1 EP 2021084714 W EP2021084714 W EP 2021084714W WO 2022122791 A1 WO2022122791 A1 WO 2022122791A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
assembly
main body
locking
cup
Prior art date
Application number
PCT/EP2021/084714
Other languages
English (en)
Inventor
Jordan MOLINIE
Maxim STIMPFLING
Olivier Danjean
Original Assignee
L'oreal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR2013029A external-priority patent/FR3117463B1/fr
Priority claimed from FR2013031A external-priority patent/FR3117460B1/fr
Application filed by L'oreal filed Critical L'oreal
Publication of WO2022122791A1 publication Critical patent/WO2022122791A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0068—Jars
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/051—Airtight containers

Definitions

  • TITLE Device for packaging a product, notably a cosmetic product, comprising a cap locked and unlocked by axial pressure
  • the present invention relates to the field of the packaging of cosmetic products.
  • the present invention also relates to the field of the locking/unlocking of two assemblies exhibiting axial mobility one relative to the other.
  • the invention finds a favoured application in devices for packaging a product, notably a cosmetic product, but could be applied to other systems comprising two assemblies mobile axially one relative to the other and needing to be locked/unlocked one relative to the other.
  • a “cosmetic product” is understood, in particular within the meaning of the present invention, to be a product as defined in Regulation (EC) No 1223/2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products.
  • the packaging device is intended for the packaging of a cosmetic product, such as a care product, for example a cream, so that it can be applied to the epidermis of a user, or else a make-up product, such as foundation or face powder, for example.
  • a cosmetic product such as a care product, for example a cream
  • a make-up product such as foundation or face powder
  • Such a device for packaging a cosmetic product may, for example, be in the form of a receptacle or pot that has a wide opening and is equipped with a lid or cap screwed onto said receptacle for closing it off.
  • Pots comprising a cap snap-fastened onto the top of an insert and creating an axial seal with said insert are also known.
  • KR102015834 - Bl describes an inner cap intended to be snap-fastened onto the neck of a pot via a flexible snap-fastening tab, an outer cap comprising a radial projection towards the inner cap and intended to prevent the flexible snap-fastening tab from disengaging from the receptacle in a position in which said receptacle is closed.
  • An unlocking button is provided on the inner cap. When said button is pressed axially, a support plate is moved axially towards the receptacle. When the button is released, it moves axially to its initial position under the action of an elastic element, thereby causing the support plate and thus the outer cap to move. The movement of the outer cap, and notably of the radial projection thereof, releases the flexible snap-fastening tab of the inner cap.
  • the retention of the cap on the receptacle is not sufficient to oppose an axial force applied to the cap in a direction away from the receptacle.
  • the axial sealing between the cap and the insert is not satisfactory either and requires additional components, such as an additional sealing film mounted in said insert and/or a sealing plate pressing axially against the lip of the insert.
  • One objective of the invention is to provide a cosmetic-product packaging device that is more ergonomic than the known packaging devices while at the same time providing a good seal between the cap and the receptacle and improved axial retention between the cap and the receptacle.
  • Another objective of the invention is to make the cup more readily interchangeable, and thus in particular to simplify the replacing of an empty cup with a full refill cup within the device.
  • a subject of the invention is a device for packaging a product, in particular a cosmetic product, comprising:
  • receptacle extending along an elevation axis and comprising, for example, an internal volume delimited by a lower wall and a lateral wall;
  • a cap or lid mounted removably on the receptacle so that it can be moved between a locked position in which the cap is retained in a sealed manner in the cup by radial friction and an unlocked position in which the cap can be separated axially from the receptacle along the elevation axis, leaving access to the interior of the cup.
  • the fixing ring When the cap is in the unlocked position, the fixing ring remains in position to retain the cup on the receptacle.
  • the cup is retained on the receptacle via the ring fixed to said receptacle, allowing reliable retention of the cup on the receptacle and easy replacement of the cup.
  • the cap is configured to close off the cup and provide the sealing for said cup in the locked position.
  • the reliability of the sealing and the retention through radial friction between the cap and the cup in the locked position is also enhanced. Specifically, when the cap is screwed directly onto the receptacle, poor screwing may lead to a lack of sealing.
  • sealing between the cap and the cup is continuous peripheral sealing.
  • the sealing between the cap and the cup is static over 360°.
  • Sealing is preferably annular.
  • the ring is screwed onto the receptacle.
  • Fixing the ring to the receptacle by screwing improves the reliability of the retention of the cup on the receptacle. Because fixing is achieved by screwing of the ring, the cup can be easily replaced.
  • the cup comprises a body of cylindrical overall shape extending along the elevation axis, a bottom, for example closed, a lateral wall forming, for example, a substantially circular contour and delimiting a cavity intended to contain a product. Provision could also be made for the lateral wall to delimit two or a plurality of cavities each intended to contain a product.
  • the cup advantageously comprises an annular end rim of the lateral wall which extends radially outwards and which presses axially against the receptacle, the fixing ring being mounted on the receptacle and pressing axially on said annular end rim of the cup.
  • the outside diameter of the wall of the cup is, advantageously, substantially smaller than the inside diameter of the end part of the receptacle, so as to be inserted into said receptacle.
  • the fixing ring may comprise an annular mounting skirt collaborating with the receptacle and an annular flange extending from an upper end of the mounting skirt radially inwards, said annular flange pressing axially on the annular end rim of the cup.
  • the annular flange extends in a substantially oblique direction and comprises at least one axial rib extending from a lower surface of the annular flange towards the cup.
  • the inside diameter, or more generally the shortest dimension in the transverse direction, of the axial rib is less than the inside diameter of the cup.
  • the ring comprises two axial ribs extending from a lower surface of the annular flange towards the cup.
  • the mounting skirt of the ring comprises, for example, a tapped thread intended to collaborate with a screw thread of the receptacle.
  • the outer axial rib comes to press axially against the annular end rim of the cup and the inner axial rib comes to press against an elbow that connects the annular end rim and the lateral wall of the cup.
  • the annular flange could extend in a purely radial direction.
  • the cap comprises a first assembly and a second assembly, the first assembly being axially mobile with respect to the second assembly between the position in which the cap is locked, in which position the first assembly is axially close to the second assembly, and the position in which said cap is unlocked, in which position the first assembly is axially distanced from the second assembly.
  • the cap further comprises an unlocking member borne by the first assembly and axially mobile with respect to said first assembly between a rest position and an unlocked position in which the first assembly is axially distanced from the second assembly.
  • a return member arranged between the unlocking member and the sealing member or the locking member and configured to return the unlocking member to its rest position.
  • the first assembly formed by the main body and the washer is mobile axially with respect to the second assembly formed by the locking member and the sealing member, between a position in which the cap is locked, in which position the cap is retained in a sealed manner in the cup by radial friction, and a position in which the cap is unlocked, in which position the cap can be detached axially from the receptacle, allowing access to the interior of the cup.
  • the assembly comprising the main body, the annular washer, the locking member and the sealing member, and the unlocking member forms a locking/unlocking mechanism internal to the cap and allowing the cap to be locked or unlocked relative to the cup.
  • the cap locking/unlocking mechanism is housed in the main body, making it possible to minimize the axial size of the cap, and thus of the product packaging device as a whole.
  • the locking/unlocking of the cap is performed by pressing purely axially in the one same direction.
  • the cap When the cap is in the unlocked position, the cap can be removed axially in the direction away from the receptacle in order to allow access to the inside of the cup.
  • the ring When the cap is removed, the ring remains in position to retain the cup on the receptacle.
  • the set of gestures required for opening the receptacle is modified so as to simplify the handling of said receptacle, while at the same time ensuring frictional retention and satisfactory radial sealing.
  • simply pressing axially on the cap allows radial retention by friction between the cap, notably the sealing member, and the cup to be achieved in order to lock the cap on the cup and ensures sealing
  • simply pressing axially on the unlocking button allows the receptacle to be opened without unscrewing the cap.
  • the cap can thus be locked/unlocked with just one hand.
  • Such handling through axial pressure is easier than a cap screwed onto a receptacle, particularly for users who have difficulty screwing a cap firmly onto a receptacle.
  • the cap comprises at least two elastically deformable flexible prongs extending between the main body and the locking member, said prongs being elastically flexed or compressed between the main body and the locking member when the cap is in the locked position.
  • “Elastically deformable” means any member which, on account of the material used, the shape and/or the dimensions thereof, is capable of deforming under the action of an external force and of reverting to its initial position when said external force ceases.
  • each flexible prong act like an elastic member configured to return the locking member to its initial relaxed position.
  • each flexible prong could be substituted by or associated with any other type of elastically deformable element, such as a helical spring, a block of compressible material, or the like, provided that it has a capacity for elastic deformation in a given axial direction.
  • each of the flexible prongs is elastically flexed between the interior surface of the end wall of the main body and the locking member.
  • the flexible prongs are in their initial position.
  • the elastically deformable flexible prongs extend as a projection from one of either the locking member or the main body in a substantially oblique direction towards the other of either the main body or the locking member, said prongs being flexed elastically against the other of either the main body or the locking member when the cap is in the locked position.
  • the elastically deformable flexible prongs extend as a projection from the locking member in a substantially oblique direction towards the main body, said prong being flexed elastically or compressed against the main body, notably the interior surface of the end wall, when the cap is in the locked position.
  • the flexible prongs are formed as one with the locking member.
  • the elastically deformable flexible prongs extend as a projection from the main body of the cap, notably from the interior surface of the end wall of the main body, towards the locking member, said prong being flexed elastically or compressed against the locking member when the cap is in the locked position.
  • the flexible prongs are formed as one with the main body.
  • the cap comprises at least two elastically deformable flexible prongs extending between the first assembly and the second assembly, said prongs being elastically flexed or compressed between the first assembly and the second assembly when the cap is in the locked position.
  • the main body of the cap comprises an outer annular axial skirt radially surrounding the ring, and an inner annular axial skirt coaxial with the outer skirt.
  • the inner annular axial skirt is, for example, connected to said outer skirt by an upper end wall.
  • Said inner skirt comprises at least one, and preferably at least two, circumferential locking slots extending in a circumferential direction and each intended to collaborate with a locking portion of the locking member when the cap is in the locked position.
  • Said inner skirt further comprises at least one, and preferably at least two, unlocking slots extending in an axial direction orthogonal to the locking slots and each intended to collaborate with an unlocking finger of the unlocking member.
  • the unlocking slots each pass across an associated locking slot. In other words, the slots together form a substantially cross-shaped recess.
  • the orthogonal positioning of the slots ensures reliable retention of the cap in the locked position, and notably of the locking member in the main body.
  • a different number of locking slots and unlocking slots for example more than or equal to three slots, could be provided.
  • the assemblies formed of a locking slot and of an unlocking slot are advantageously evenly spaced in the circumferential direction.
  • the number of unlocking slots is at least equal to the number of locking slots.
  • the outer skirt has an axial dimension greater than the axial dimension of the inner skirt.
  • the free end of the outer skirt of the main body is axially offset from the free end of the mounting skirt of the ring.
  • the free end of the inner skirt is chamfered in a direction inclined towards the inside and collaborates with a surface of the locking portion when the cap is in the unlocked position, said surface being matched in terms of shape to the free end of the inner skirt.
  • the chamfered free end is inclined by an angle of between 40° and 50°, for example equal to 45°, with respect to the elevation axis.
  • the locking member comprises:
  • locking tabs which are flexible radially with respect to the rigid body and each comprise an axial portion connected to said rigid body and the locking portion projecting from the free end of the axial portion in a direction substantially inclined towards the inside.
  • a “rigid body” means a body that is not caused to deform during correct operation and normal use of the device. This qualifier “rigid” is therefore to be interpreted as contrasting with the term “deformable”, likewise in the context of correct operation and normal use of the device.
  • the locking tab or tabs are also elastically deformable, which is to say configured to deform under the action of an external force and to revert to their initial position when said external force ceases.
  • the elastically deformable flexible prongs extend as a projection from one of either the rigid body of the locking member or the main body in a substantially oblique direction towards the other of either the main body or the rigid body, said prongs being flexed elastically or compressed against the other of either the main body or the rigid body when the cap is in the locked position.
  • the elastically deformable flexible prongs extend as a projection from the rigid body of the locking member in a substantially oblique direction towards the main body, said prong being flexed elastically or compressed against the main body, notably the interior surface of the end wall, when the cap is in the locked position.
  • the flexible prongs are formed as one with the locking member.
  • the elastically deformable flexible prongs extend as a projection from the main body of the cap, notably from the interior surface of the end wall of the main body, towards the locking member, said prong being flexed elastically or compressed against the locking member when the cap is in the locked position.
  • the flexible prongs are formed as one with the main body.
  • the free end of the flexible prongs is permanently in contact with the interior surface of the end wall of the main body.
  • the rigid body comprises at least a cylindrical base radially surrounding the inner skirt of the main body and an annular lip connected to the cylindrical base and pressing axially against the ring.
  • the elastically deformable flexible prongs each project out from the annular lip in a substantially oblique direction towards the main body. According to another embodiment, the elastically deformable flexible prongs each project out from the base in a substantially oblique direction towards the main body.
  • a combination of flexible prongs projecting out from the base of the locking member and of flexible prongs projecting out from the annular lip or the external contour of the transverse wall of the locking member could also be provided.
  • the base comprises at least one, and preferably at least two, axial cutouts, each locking tab extending into one of said axial cutouts.
  • the locking member comprises a transverse portion connecting the cylindrical base and the annular lip, said transverse portion comprising a first passage in which a mounting prong of the washer is mounted and a second passage intended to receive a fixing skirt of the sealing member.
  • the elastically deformable flexible prongs could project out from the transverse portion in a substantially oblique direction towards the main body.
  • the sealing member comprises a rigid support secured to the locking member and an annular sealing membrane or gasket secured to said support, for example by overmoulding.
  • Said sealing membrane is configured to deform elastically under the pressure of the washer against said membrane and come into radial contact with the cup in order to seal the cup and retain the cap through friction.
  • “Elastically deformable” means any member which, on account of the material used, the shape and/or the dimensions thereof, is capable of deforming under the action of an external force and of reverting to its initial position when said external force ceases.
  • the sealing membrane is thus configured to deform under the axial pressure of the first assembly and to revert to its initial position when said pressure ceases.
  • the outside diameter, or more generally the greatest dimension in the transverse direction, of the sealing membrane in the non-deformed position of said membrane is less than the inside diameter of the axial rib of the annular flange of the mounting ring.
  • the outside diameter, or more generally the greatest dimension in the transverse direction, of the sealing membrane when said membrane is in the deformed position is greater than the inside diameter of the axial rib of the annular flange of the mounting ring.
  • the axial rib of the mounting ring collaborates with the membrane when said membrane is in the deformed position, allowing additional axial retention of the cap in the cup.
  • the annular sealing membrane comprises, for example, a radial portion secured to the rigid support and an axial portion projecting from the radial portion towards the main body.
  • the axial portion comprises a radial projection extending towards the inside, notably towards the fixing skirt of the support.
  • the annular washer notably the main portion thereof, is intended to come to press axially on said radial projection when force is applied to the main body with the cap in the locked position.
  • Said axial portion is configured to deform and adopt a curved shape, namely a shape that is concave towards the inside or in other words bulging outwardly in the radial direction, when the annular washer presses axially on the radial projection.
  • the curved or bulging shape of the axial portion of the sealing membrane is in tight radial contact with the lateral wall of the cup.
  • the cap finding itself in the locked position, is held on the cup by radial friction.
  • the sealing membrane is deformed in the radial direction so as to exhibit a greatest exterior dimension in the radial direction, typically a greatest outside diameter, greater than a greatest interior dimension in the radial direction, typically a greatest inside diameter, of the lateral wall of the cup.
  • the sealing membrane When the cap is in the unlocked position, the sealing membrane exhibits a greatest exterior dimension in the radial direction, typically a greatest outside diameter, that is less than a greatest interior dimension in the radial direction, typically a greatest inside diameter, of the lateral wall of the cup.
  • Such a bulging shape of the sealing membrane makes it possible to maintain elastic mobility in the radial direction between the cap and the cup, something which can be beneficial for absorbing the manufacturing tolerances of the components of the cap and/or of the cup.
  • the bulging shape of the sealing membrane also makes it possible to obtain sealing along a horizontal generatrix, thereby improving sealing.
  • the radial expansion of the sealing membrane during the axial movement of the main body means that the cap can be retained reliably on the cup through radial friction, while at the same time ensuring satisfactory sealing between said cap and the cup.
  • the inside diameter of the axial portion is greater than the outside diameter of the washer and the inside diameter of the radial projection is less than the outside diameter of the washer.
  • the outside diameter of the axial portion is less than the inside diameter of the cup.
  • the outside diameter of the axial portion is greater than the inside diameter of the cup, generating the tight radial retention of the cap on the cup.
  • the annular sealing membrane is made from an elastically deformable material, for example an elastomer.
  • the support of the sealing member is made from a rigid material, namely configured not to deform under the action of an external force.
  • the radial projection extends inwards, notably towards the fixing skirt of the rigid support.
  • the radial projection is, for example, annular.
  • the radial projection is advantageously situated axially at some distance from the free upper end of the axial portion.
  • the washer comprises a rib extending axially towards the axial portion of the sealing membrane in a direction inclined towards the inside and intended to collaborate with said axial portion when force is applied to the main body with the cap in the locked position so as to deform said axial portion by radial separation towards the cup.
  • the radial separation of the sealing membrane during the axial movement of the main body means that the cap can be retained reliably on the cup through radial friction, while at the same time ensuring satisfactory sealing between said cap and the cup.
  • the axial portion may comprise an external surface of bulging or curved shape, when no force is being applied to the membrane.
  • the bulging shape of the sealing membrane means that a large area for contact between said membrane and the cup can be provided.
  • the annular membrane is configured to pivot about the junction between the radial portion and the axial portion between an initial position and a sealing position in which said axial portion is in radial contact with the receptacle.
  • the rib is delimited axially by an upper end and a lower end, the outside diameter of the upper end being greater than the inside diameter of the sealing membrane, and the outside diameter of the upper end being less than the inside diameter of the sealing membrane.
  • the inside diameter of the axial portion of the sealing membrane is less than the outside diameter of the washer and greater than the lower end of the rib of the washer.
  • the rib is, for example, annular.
  • rib segments for example four or more of these, intended to collaborate with the axial portion of the sealing membrane, could be anticipated.
  • the rib projects, for example, from a main portion of the annular washer.
  • the rigid support comprises a base, a fixing skirt projecting axially from the base and collaborating with the locking member, notably the base.
  • the fixing skirt is mounted, for example, in the second passage of the transverse portion of the locking member.
  • the main body further comprises at least two intermediate- skirt segments each situated radially between the inner skirt and the outer skirt.
  • Each intermediate- skirt segment comprises a recess intended to accept a fixing hook of the annular washer.
  • the unlocking member comprises:
  • - a body of cylindrical overall shape mounted radially inside the inner skirt of the main body, for example an upper wall, and
  • each unlocking finger comprising a chamfered or inclined lower end matched in terms of shape to the chamfered surface of the locking portion of the locking tab of the locking member.
  • the chamfered lower end of the unlocking finger or fingers is intended to collaborate with said chamfered surface of the locking portion when said unlocking member is forced into the unlocked position.
  • a different number of unlocking fingers for example more than or equal to three, could be provided.
  • the unlocking fingers are of the same number as the assemblies made up of a locking slot and of an unlocking slot and these are, preferably, situated at the same angular positions in the circumferential direction as these assemblies.
  • the unlocking member further comprises at least one, and preferably two, guide fingers which are each intended to be inserted into a corresponding guide slot of the inner skirt of the main body.
  • the guide fingers are the same in number as the unlocking fingers, said guide fingers and said unlocking fingers are uniformly distributed in the circumferential direction, a guide finger alternating with an unlocking finger.
  • the assemblies formed of a guide finger provided on the unlocking member and of a guide slot provided on the inner skirt of the main body in particular provide axial guidance of the unlocking member with respect to the main body.
  • the invention relates to a method for locking/unlocking the cap of a device for packaging a product with respect to a cup intended to contain a product and mounted removably in a receptacle extending along an elevation axis.
  • the device comprises a fixing ring fixed removably on the receptacle and configured to retain the cup in the receptacle.
  • the cap is mounted removably on the receptacle so that it can be moved between a locked position in which the cap is retained in a sealed manner in the cup by radial friction and an unlocked position in which the cap can be separated axially from the receptacle along the elevation axis, leaving access to the interior of the cup.
  • the cap is forced into the locked position by axial pressure on said cap towards the cup, and the cap is forced into an unlocked position by axial pressure on said cap towards the cup, in the same direction as the axial pressure for locking the cap.
  • the fixing ring remains in position to retain the cup on the receptacle.
  • the cap comprises a first assembly and a second assembly, the first assembly being axially mobile with respect to the second assembly between the position in which the cap is locked, in which position the first assembly is axially close to the second assembly, and the position in which said cap is unlocked, in which position the first assembly is axially distanced from the second assembly.
  • the cap further comprises an unlocking member borne by the first assembly and axially mobile with respect to said first assembly between a rest position and an unlocked position in which the first assembly is axially distanced from the second assembly. According to the locking/unlocking method, the cap is forced into the locked position by axial pressure on the first assembly and the cap is forced into an unlocked position by axial pressure on the unlocking member.
  • the cap comprises a main body, an annular washer or mounting plate secured to said main body, a locking member mounted in the main body and mobile axially with respect to said main body between a relaxed position and a locked position in which said locking member is secured to the main body, a sealing member secured to the locking member in contact with said annular washer when the cap is in the locked position, an unlocking member mobile axially with respect to the main body between a rest position and an unlocked position in which the locking member is separated from the main body, and a return member arranged between the unlocking member and the sealing member or the locking member and configured to return the unlocking member to its rest position.
  • the cap is forced into a locked position by axial pressure on the main body towards the locking member until a flexible locking tab of the locking member engages in a locking slot of the main body, the axial movement of the main body causing the axial movement of the washer towards the sealing member until an annular sealing membrane deforms, and in the locked position, the cap is retained in a sealed manner in the cup by radial friction of the deformed annular sealing membrane with said cup, the cap comprising at least two flexible prongs extending between the locking member and the main body and configured to flex elastically between said locking member and said main body in the locked position.
  • the cap is forced into an unlocked position by axial pressure, in the same direction as the axial pressure for locking the cap, on the unlocking member towards the locking member until the flexible locking tab of the locking member is moved radially outwards, the flexible prongs of said cap being configured to relax so as to revert to their initial shape so as to move the washer axially away from the sealing member.
  • the invention also covers any technically conceivable possibility for structurally inverting the components used within the device.
  • the flexible locking tab could be borne by the main body and the locking slot could be provided on the locking member, without departing from the scope of the present invention.
  • Document US 2014/353274 - Al which describes a bottle comprising a container, a hollow insert screwed into the neck of the container and a bottle stopper configured to close off the insert.
  • the stopper comprises a lid mounted in said insert, a button able to move in the lid and a lock comprising locking tabs collaborating with catches provided respectively on the lid, the button and the insert when the stopper is in a locked position on the bottle.
  • the user raises the lid while maintaining pressure on the button in order to move the locking tabs radially inwards, away from the catches of the insert and of the button. The user can then remove the stopper in the same axial direction as the direction of the force applied in order to detach the stopper.
  • JP 536383182 - B2 which describes a product packaging assembly comprising an insert comprising locking tabs snap-fastened into a container and a lid screw-fitted onto the insert.
  • the assembly comprises a locking/unlocking system arranged in the end wall of the container and configured to dislodge the locking tabs from the container by pressing the locking system axially towards the insert. Once said tabs have been dislodged from the container, the user can remove the insert by pulling it in the same direction as the direction of the pressure for dislodging said tabs.
  • Another objective of the invention is to propose a system comprising two assemblies able to move one relative to the other and comprising a mechanism for locking/unlocking said assemblies which is more ergonomic while at the same time providing greater mutual axial retention of the two assemblies.
  • one subject of the invention is a system comprising a first assembly and a second assembly, which assemblies are coaxial and configured to adopt two distinct relative axial positions, said first assembly being axially mobile with respect to the second assembly between a locked position in which the first assembly is axially close to the second assembly and an unlocked position in which the first assembly is axially distanced from the second assembly.
  • the system comprises a locking/unlocking mechanism comprising:
  • transition from the unlocked position to the locked position is achieved by the first assembly moving closer towards the second assembly, and the transition from the locked position to the unlocked position is achieved by axial pressure on the unlocking member in combination with the relaxation of the elastically deformable member.
  • the actions required for locking and unlocking the two assemblies relative to one another are modified to allow for easier manipulation thereof, while at the same time guaranteeing axial retention and satisfactory unlocking.
  • “Elastically deformable” means any member which, on account of the material used, the shape and/or the dimensions thereof, is capable of deforming under the action of an external force and of reverting to its initial position when said external force ceases.
  • the axial pressure on the unlocking member and the relaxation of the elastic member are achieved along the one same axis, which is to say in the one same axial direction.
  • the first assembly comprises at least a main body and the second assembly comprises at least a locking member.
  • the locking member is mounted in the main body and is axially mobile with respect to said main body between a relaxed position and a locked position in which said locking member is secured to the main body.
  • the first assembly notably the main body, comprises at least an inner annular axial skirt.
  • the locking element of the locking/unlocking mechanism comprises at least one, and preferably at least two, circumferential locking slots made in the inner annular skirt of the first assembly and extending in a circumferential direction, the locking/unlocking mechanism further comprising at least one, and preferably at least two, locking tabs borne by the second assembly and each intended to collaborate with a circumferential locking slot in the locked position.
  • the locking/unlocking mechanism further comprises at least one, and preferably at least two, unlocking slots made in said inner skirt of the first assembly and extending in an axial direction orthogonal to the locking slots and each intended to collaborate with an unlocking finger of the unlocking member.
  • the unlocking slots each pass across an associated locking slot.
  • the slots together form a substantially cross-shaped recess.
  • the orthogonal positioning of the slots ensures reliable retention of the cap in the locked position, and notably of the second assembly in the first assembly.
  • a different number of locking slots and unlocking slots for example more than or equal to three slots, could be provided.
  • the assemblies formed of a locking slot and of an unlocking slot are advantageously evenly spaced in the circumferential direction.
  • the number of unlocking slots is at least equal to the number of locking slots.
  • each locking tab of the locking/unlocking mechanism comprises a locking portion comprising an inclined end surface.
  • locking tabs there are, for example, the same number of locking tabs as there are assemblies made up of a locking slot and of an unlocking slot and these are preferably situated at the same angular positions in the circumferential direction as these assemblies.
  • the locking/unlocking mechanism comprises at least a portion that is chamfered in a direction inclined towards the inside and made at the free end of the inner skirt of the first assembly, and collaborates with the inclined surface of the locking portion in the unlocked position, said inclined surface being matched in terms of shape to the chamfered portion.
  • the chamfered portion is inclined by an angle of between 40° and 50°, for example equal to 45°, with respect to the elevation axis.
  • the unlocking member of the locking/unlocking mechanism comprises:
  • each unlocking finger comprises a chamfered lower end matched in terms of shape to the chamfered surface of the locking portion of the locking tab of the locking/unlocking mechanism, the chamfered lower end of the unlocking finger or fingers being intended to collaborate with said chamfered surface of the locking portion when said unlocking member is forced into the unlocked position.
  • the unlocking member may, for example, further comprise at least one, and preferably two, guide fingers which are each intended to be inserted into a corresponding guide slot of the inner skirt of the first assembly.
  • the guide fingers are the same in number as the unlocking fingers, said guide fingers and said unlocking fingers are uniformly distributed in the circumferential direction, a guide finger alternating with an unlocking finger.
  • the assemblies formed of a guide finger provided on the unlocking member and of a guide slot provided on the inner skirt of the first assembly in particular provide axial guidance of the unlocking member with respect to the first assembly.
  • the elastically deformable member of the locking/unlocking mechanism comprises at least two elastically deformable flexible prongs extending as a projection from one of either the assembly or the first assembly in a substantially oblique direction towards the other of either the first assembly or the second assembly, said prongs being flexed elastically against the other of either the first assembly or the second assembly in the locked position.
  • the second assembly comprises a rigid body radially surrounding the inner skirt of the first assembly, the locking tabs of the locking/unlocking mechanism being flexible radially with respect to said rigid body and each comprising an axial portion connected to said rigid body and the locking portion projecting from the free end of the axial portion in a direction substantially inclined towards the inside.
  • the elastically deformable flexible prongs extend as a projection from the rigid body of the second assembly in a substantially oblique direction towards the first assembly. Said prongs are elastically flexed against the first assembly in the locked position.
  • a “rigid body” means a body that is not caused to deform during correct operation and normal use of the device. This qualifier “rigid” is therefore to be interpreted as contrasting with the term “deformable”, likewise in the context of correct operation and normal use of the device.
  • the flexible prongs of the locking/unlocking mechanism act like an elastic member configured to return the locking member to its initial relaxed position.
  • the flexible prongs could be substituted by or associated with any other type of elastically deformable element, such as a helical spring, a block of compressible material, or the like, provided that it has a capacity for elastic deformation in a given axial direction.
  • each of the flexible prongs of the locking/unlocking mechanism is flexed elastically against the first assembly, notably the interior surface of the main body.
  • each of the flexible prongs In the unlocked position, each of the flexible prongs is in its initial position.
  • each flexible prong is in permanent contact with the first assembly, notably the interior surface of the end wall thereof.
  • the elastically deformable flexible prongs extend as a projection from one of either the locking member or the main body in a substantially oblique direction towards the other of either the main body or the locking member, said prongs being flexed elastically against the other of either the main body or the locking member when the cap is in the locked position.
  • the elastically deformable flexible prongs extend as a projection from the locking member in a substantially oblique direction towards the main body, said prong being flexed elastically or compressed against the main body, notably the interior surface of the end wall, when the cap is in the locked position.
  • the flexible prongs are formed as one with the locking member.
  • the elastically deformable flexible prongs extend as a projection from the main body of the cap, notably from the interior surface of the end wall of the main body, towards the locking member, said prong being flexed elastically or compressed against the locking member when the cap is in the locked position.
  • the flexible prongs are formed as one with the main body.
  • the locking tab or tabs are also elastically deformable, which is to say configured to deform under the action of an external force and to revert to their initial position when said external force ceases.
  • the rigid body of the second assembly comprises at least a cylindrical base radially surrounding the inner skirt of the first assembly, the base comprising at least one, and preferably at least two, axial cutouts, each locking tab of the locking/unlocking mechanism extending into one of said axial cutouts.
  • each elastically deformable flexible prong of the locking/unlocking mechanism projects out from the base in a substantially oblique direction towards the first assembly.
  • the rigid body of the second assembly comprises a transverse portion projecting radially from the base.
  • each elastically deformable flexible prong of the locking/unlocking mechanism projects out from the transverse portion of the second assembly in a substantially oblique direction towards the first assembly.
  • a combination of flexible prongs projecting out from the base of the second assembly and of flexible prongs projecting out from the transverse wall of the second assembly could also be provided.
  • the invention also covers any technically conceivable possibility for structurally inverting the components used within the device.
  • the flexible locking tab could be borne by the first assembly and the locking slot could be provided on the second assembly, without departing from the scope of the present invention.
  • the first assembly In the unlocked position, the first assembly can be extracted axially in the direction away from the second assembly.
  • one subject of the invention is a method for locking/unlocking a first assembly with respect to a second assembly of a system, said assemblies being coaxial and configured to adopt two distinct relative axial positions, said first assembly being axially mobile with respect to the second assembly between a locked position in which the first assembly is locked onto the second assembly and an unlocked position in which the first assembly is axially distanced from the second assembly.
  • the system comprises a locking/unlocking mechanism comprising an unlocking member borne by the first assembly and axially mobile with respect to said first assembly between a rest position and an unlocked position, and at least two elastically deformable members borne by one of either the second assembly or the first assembly, said elastically deformable members being flexed elastically between the first and the second assembly in the locked position.
  • transition from the unlocked position to the locked position is achieved by the first assembly moving closer towards the second assembly, and the transition from the locked position to the unlocked position is achieved by axial pressure on the unlocking member in combination with the relaxation of the elastically deformable members.
  • the first assembly is unlocked from the second assembly by axial pressure on the unlocking member, in the same direction as the axial pressure for locking the first assembly onto the second assembly, in combination with the relaxation of at least one elastically deformable member elastically flexed between the first and the second assembly in the locked position.
  • the first assembly comprises at least an inner annular axial skirt and the locking/unlocking mechanism comprises at least one, and preferably at least two, circumferential locking slots made in the inner annular skirt of the first assembly and extending in a circumferential direction, the locking/unlocking mechanism further comprising at least one, and preferably at least two, locking tabs borne by the second assembly and each intended to collaborate with a circumferential locking slot in the locked position.
  • the locking/unlocking mechanism further comprises at least one, and preferably at least two, unlocking slots made in said inner skirt of the first assembly and extending in an axial direction orthogonal to the locking slots and each intended to collaborate with an unlocking finger of the unlocking member.
  • the first assembly is locked onto the second assembly by axial pressure on the first assembly towards the second assembly until the flexible locking tab engages in a corresponding locking slot, the elastically deformable member of the locking/unlocking mechanism being configured to become compressed against the first assembly in the locked position, and
  • the first assembly is unlocked from the second assembly by axial pressure, in the same direction as the axial pressure for locking the first assembly onto the second assembly, on the unlocking member towards the second assembly until the flexible locking tab borne by the second assembly moves radially outwards, the elastically deformable member of the locking/unlocking mechanism being configured to relax in order to revert to its initial shape so as to move the first assembly axially away from the second assembly.
  • FIG 1 depicts an exploded perspective view of a product packaging device according to one embodiment of the invention
  • FIG 2 is an exploded view in cross section of part of the device of Figure 1;
  • FIG 3 depicts a view in cross section of the device of Figure 1, in which the cap is in the unlocked position;
  • FIG 4 is a detail view of Figure 3;
  • FIG 5 depicts a view in cross section of the device of Figure 1, in which the cap is in the locked position
  • FIG 6 is a detail view of Figure 5;
  • FIG 7 depicts a view in cross section of a product packaging device according to another embodiment of the invention, in which view the cap is in the unlocked position;
  • FIG 8 is a detail view of Figure 7;
  • FIG 9 depicts a view in cross section of the device of Figure 7, in which the cap is in the locked position;
  • FIG 10 is a detail view of Figure 9;
  • FIG 14 illustrate the steps of locking and unlocking the cap
  • FIG 18 illustrate the steps of locking and unlocking the cap according to another embodiment of the invention.
  • inner or internal and outer or external parts are used with reference to the inside of the product packaging device, the inner or internal parts being closer to the elevation axis Z-Z' than the outer or external parts.
  • a “product” means a cosmetic product, such as, for example, a care product, for example a cream, intended to be applied to the epidermis or to the keratinous fibres of a user, or else a make-up product, such as, for example, foundation or face powder or else a finely ground, compacted solid product in the form of a compact powder, intended to be applied, for example, to the epidermis of the user.
  • a cosmetic product such as, for example, a care product, for example a cream, intended to be applied to the epidermis or to the keratinous fibres of a user
  • a make-up product such as, for example, foundation or face powder or else a finely ground, compacted solid product in the form of a compact powder, intended to be applied, for example, to the epidermis of the user.
  • the invention is not limited to a cosmetic product.
  • Other types of products such as, for example, paint, or else food products, of the butter type, could also be
  • the device 1 for packaging a product comprises a receptacle 10 or pot, a cup or insert 20 mounted removably in the receptacle 10 and a fixing ring 30 fixed removably to the receptacle 10.
  • the ring 30 retains the cup 20 in the receptacle 10.
  • the device 1 further comprises a cap or lid 40 fixed removably on the receptacle 10 so that it can be moved between a locked position, visible in Figures 5 and 6, in which the cap 40 is retained in a sealed manner in the cup 20 by radial friction, and an unlocked position, visible in Figures 3 and 4, in which the cap 40 can be separated axially from the receptacle, leaving access to the interior of the cup 20.
  • the cap 40 is configured to close off the cup 20 and provide the sealing for said cup 20 in the locked position.
  • the receptacle 10 comprises a body with a cylindrical overall shape and extends along an elevation axis Z-Z' that is presumed to be vertical in the figures. Any other shape could be provided for the body, for example parallelepipedal.
  • the body of the receptacle 10 comprises an internal volume 11 for receiving the cup 20.
  • the internal volume 11 is delimited by a lower wall 12 or bottom that is substantially flat and disposed in a plane XY containing the longitudinal axis X and the transverse axis Y, and a lateral wall 13 forming a substantially circular contour.
  • Other, regular or irregular, contour shapes are also possible, in particular square, polygonal or oblong shapes.
  • the receptacle 10 further comprises an open end part 14 allowing access to the internal volume 11 and connected to said lateral wall 13 by a shoulder 15.
  • the end part 14 has, on its periphery, a screw thread 16 intended to collaborate with a tapped thread 32, visible in Figures 1 and 3 to 10, formed in the ring 30.
  • the cup or the insert 20 is intended to be inserted into the internal volume 11 of the receptacle 10.
  • the device 1 may have no cup 20.
  • the cup 20 may form the receptacle.
  • the device 1 may have no fixing ring 30 and the cap 40 is mounted directly on the open end 14 of the receptacle 10.
  • the cup 20 comprises a body of cylindrical overall shape extending along the elevation axis L " -T .
  • the body of the cup 20 has a lower closed bottom 21, and a lateral wall 22 forming a substantially circular contour and delimiting a cavity 23 that is intended to contain a product.
  • the cup 20 comprises an annular end rim 24 at the end of the lateral wall 22, which rim has an outside diameter greater than the outside diameter of the lateral wall 22.
  • the annular end rim 24 presses axially against the end part 14 of the receptacle 10.
  • the outside diameter of the wall 22 of the cup 20 is substantially smaller than the inside diameter of the end part 14 of the receptacle 10 so as to be inserted into said receptacle 10.
  • the ring 30 comprises a body of annular overall shape and extends along an elevation axis Z-Z' that is presumed to be vertical in the figures.
  • the ring 30 comprises an annular mounting skirt 31 comprising a tapped thread 32 intended to collaborate with the screw thread 16 of the receptacle 10 so that said ring 30 can be screwed onto or unscrewed from the receptacle 10.
  • the ring 30 further comprises an annular flange 33 extending radially inwards from an upper end of the mounting skirt 31. As illustrated, the annular flange 33 extends in a substantially oblique direction and comprises two axial ribs 33a, 33b extending from a lower surface of the annular flange 33 towards the cup 20.
  • the inside diameter, or more generally the shortest dimension in the transverse direction, of the inner axial rib 33b is less than the inside diameter of the lateral wall 22 of the cup 20.
  • the outer axial rib 33a comes to press axially against the annular end rim 24 of the cup 20 and the inner axial rib 33b comes to press against the elbow (not referenced) that connects the annular end rim 24 and the lateral wall 22 of the cup 20.
  • the two ribs could be made for the two ribs to press axially against the annular end rim 24 of the cup 20.
  • the flange 33 of the ring 30 could be made to have only the inner axial rib 33b or to have no axial ribs. In that case, the lower surface of said flange 33 would press axially directly on the annular end rim 24 of the cup 20.
  • annular flange 33 could extend in a purely radial direction.
  • the cup 20 is retained effectively on the receptacle 10 by means of the ring 30 screwed onto said receptacle 10. Because fixing is achieved by screwing of the ring 30, the cup 20 can be easily replaced. Specifically, the cup 20 can be easily detached from the receptacle 10, notably with a view to replacing it when the product contained in said cup has been used up. The cup thus acts as a refill.
  • the cap 40 is configured to close off the cup 20 and provide the sealing for said cup 20.
  • the cap 40 extends along an elevation axis Z-Z' that is presumed to be vertical in the figures.
  • the cap 40 comprises a main body 50 of cylindrical overall shape, an annular washer or mounting plate 60 secured to said main body 50, a locking member 70 mounted in the main body 50, a sealing member 80 secured to the locking member 70 and an unlocking member 90 mobile axially with respect to the main body 50.
  • the locking member 70 is mobile axially with respect to said main body 50 between a relaxed position and a locked position.
  • the unlocking member 90 is mobile axially with respect to the main body 50 between a rest position and an unlocked position.
  • the main body 50, the annular washer 60, the locking member 70, the sealing member 80 and the unlocking member 90 are coaxial.
  • the locking member 70 is made from a material that has a high elastic deformation threshold.
  • the main body 50, the annular washer 60 and the unlocking member 90 are made from a plastics material.
  • these elements are advantageously made from the one same material.
  • the use of polyolefins for the production of these elements promotes the recycling of the elements of the cap and thus allows environmental requirements to be met.
  • the assembly comprising the main body 50, the annular washer 60, the locking member 70 and the unlocking member 90 forms a locking/unlocking mechanism internal to the cap 40 and allowing the cap 40 to be locked or unlocked relative to the cup 20.
  • the cap 40 is a system comprising a first assembly and a second assembly.
  • the main body 50 and the washer 60 form the first assembly
  • the locking member 70 and the sealing member 80 form the second assembly.
  • the first and the second assembly are coaxial and configured to adopt two distinct relative axial positions.
  • the first assembly can be moved axially with respect to the second assembly between a locked position, visible in Figures 5 and 6, in which the cap 40 is retained in a sealed manner in the cup by radial friction, and an unlocked position, visible in Figures 3 and 4, in which the cap 40 can be separated axially from the receptacle, leaving access to the interior of the cup 20.
  • the transition of the cap from the unlocked position to the locked position is achieved by the first assembly moving closer towards the second assembly, and the transition from the locked position to the unlocked position is achieved by axial pressure on the unlocking member 90 in combination with the relaxation of the elastically deformable members 76 that extend between the second assembly and the first assembly and are elastically flexed between the first and the second assembly in the locked position.
  • the main body 50 of the cap 40 comprises an outer annular axial skirt 51 radially surrounding the ring 30, and an inner annular axial skirt 52, coaxial with the outer skirt 51 and connected to said outer skirt by an upper end wall 53.
  • the main body 50 further comprises an intermediate skirt 54 situated radially between the inner skirt 52 and the outer skirt 51.
  • the intermediate skirt 54 comprises a recess 54a intended to accept a fixing hook 63 of the annular washer 60.
  • the intermediate skirt 54 is not annular and comprises three segments which are arranged circumferentially in a uniform manner, for example with 120° between two adjacent segments.
  • At least two segments, or more than three segments, could be provided.
  • the outer skirt 51 has an axial dimension greater than the axial dimension of the inner skirt 52 and of the intermediate skirt 54.
  • the outer skirt 51 radially surrounds the mounting skirt 31 of the ring 30.
  • the outer skirt 51 lies flush with the mounting skirt 31 of the ring 30.
  • the inner skirt 52 of the main body 50 comprises circumferential locking slots 55, in this instance three of them, extending in a circumferential direction and uniformly spaced from one another.
  • the locking slots 55 are each intended to collaborate with a locking portion 75b of the locking member 70.
  • the inner skirt 52 of the main body 50 further comprises unlocking slots 56, in this instance three of them, extending in an axial direction, along the vertical axis Z.
  • the unlocking slots 56 are each intended to collaborate with an unlocking finger 93 of the unlocking member 90.
  • the unlocking slots 56 are orthogonal to the locking slots 55 and each pass across an associated locking slot. In other words, the slots 55, 56 together form a substantially cross-shaped recess.
  • the orthogonal positioning of the slots 56, 55 ensures reliable retention of the cap 40 in the locked position, and notably of the locking member 70 in the main body 50.
  • the inner skirt 52 could comprise at least one, and preferably at least two, locking slots and at least one, and preferably at least two, unlocking slots.
  • the inner skirt 52 of the main body 50 also comprises guide slots 58, in this instance three of them, interposed between the unlocking slots 56 and extending in an axial direction, along the vertical axis Z.
  • the guide slots 58 are each intended to collaborate with a guide finger 95 of the unlocking member 90.
  • the inner skirt 52 could comprise at least one, and preferably at least two, guide slots 58.
  • the inner skirt 52 comprises, at its free end, portions 57 that is chamfered in an obliquely inwards direction.
  • each chamfered portion 57 is inclined by an angle of between 40° and 50°, for example equal to 45°, with respect to the elevation axis L " -T .
  • the annular washer 60 comprises a substantially planar main portion 61 and three mounting prongs 62 projecting axially from the main portion 61 towards the main body 50.
  • the mounting prongs 62 are arranged circumferentially in a uniform manner, for example with 120° between two adjacent prongs.
  • Each mounting prong 62 comprises a fixing hook 63 projecting radially outwards and intended to collaborate with a recess 54a of a segment of the intermediate skirt 54.
  • the annular washer 60 could comprise at least two mounting prongs 62.
  • the locking member 70 comprises a cylindrical base 71, an annular lip 72 connected to the cylindrical base 71 by a transverse portion 73.
  • the cylindrical base 71 radially surrounds the inner skirt 52 of the main body 50.
  • the transverse portion 73 comprises a first passage 73a in which the mounting prong 62 is mounted, and a second passage 73b intended to receive a fixing skirt 83 of the sealing member 80.
  • the base 71 comprises three axial cutouts 74 and three locking tabs 75 each extending into an axial cutout 74.
  • Each locking tab 75 comprises an axial portion 75a and a locking portion 75b projecting out from the free end of the axial portion 75a in a substantially inwardly oblique direction.
  • the locking portion 75b comprises a surface 75c that is chamfered or inclined towards the inside.
  • the chamfered surface 75c is matched in terms of shape to the chamfered portion 57 of the inner skirt 52.
  • the locking tabs 75 are flexible with respect to the base 71 of the locking member 70.
  • the locking tabs 75 are elastically deformable, which is to say configured, on account of their shape, to deform under the action of an external force and to revert to their initial position when said external force ceases.
  • the locking portion 75b of the locking tabs 75 is intended to snap-fasten into a corresponding locking slot 55 of the inner skirt 52 of the main body 50 when the cap 40 is in the locked position.
  • the annular lip 72 presses axially against the annular flange 33 of the ring 30.
  • the locking member 70 comprises elastically deformable flexible prongs 76 each projecting out from the annular lip 72 in a substantially oblique direction towards the main body 50. Each of said prongs 76 is configured to flex elastically against the main body 50 when the cap 40 is in the locked position.
  • the base 71 and the transverse wall 73 of the locking member 70 form a rigid body and the flexible prongs 76 extend out from said rigid body in a substantially oblique direction towards the main body 50.
  • the flexible prongs 76 are three in number, arranged at 120° in the circumferential direction.
  • the free end of the flexible prongs 76 is advantageously in permanent contact with the interior surface of the end wall 53 of the main body 50.
  • the flexible prongs 76 are elastically deformable, which is to say configured, on account of their shape, to deform under the action of an external force and to revert to their initial position when said external force ceases.
  • the flexible prongs 76 act like an elastic member configured to return the locking member 70 to its initial relaxed position.
  • the invention also covers any technically conceivable possibility for structurally inverting the components used within the device.
  • the flexible prongs could be borne by the main body.
  • the elastically deformable flexible prongs would be formed as one with the main body and could project out from the main body of the cap, notably from the interior surface of the end wall of the main body, towards the locking member.
  • the cap 40 comprises at least two elastically deformable flexible prongs 76 extending between the main body 50 and the locking member 70, said prongs 76 being elastically flexed or compressed between the main body 50 and the locking member 70 when the cap is in the locked position.
  • the sealing member 80 comprises a rigid support 81 comprising a base 82 and a fixing skirt 83 projecting axially from the base 82.
  • the fixing skirt 83 comprises a plurality of hooks 84, in this instance three of them, intended to collaborate with a corresponding radial projection 71b on the base 71 of the locking member 70.
  • the fixing skirt 83 is mounted in the second passage 73b of the transverse portion 73 of the locking member 70.
  • the sealing member 80 further comprises an annular sealing membrane or gasket 85 secured to said support 81, for example by overmoulding.
  • the annular sealing membrane 85 comprises a radial portion 86 secured to the rigid support 81 and an axial portion 87 projecting from the radial portion 86 towards the main body 50.
  • the axial portion 87 comprises a radial projection 88 extending inwards, notably towards the fixing skirt 83 of the support 81.
  • the radial projection 88 is annular in order to create a continuous peripheral seal that is static over 360°.
  • the radial projection 88 is situated axially at some distance from the free upper end 89 of the axial portion 87.
  • the radial projection 88 is intended to collaborate with the annular washer 60, notably the main portion 61 thereof, when force is applied to the main body 50 with the cap 40 in the locked position, as will be described in detail later on in the description.
  • the inside diameter of the axial portion 87 is greater than the outside diameter of the washer 60 and the inside diameter of the radial projection 88 is less than the outside diameter of the washer 60.
  • the outside diameter of the axial portion 87 is less than the inside diameter of the cup 20.
  • the outside diameter of the axial portion 87 is greater than the inside diameter of the cup 20, generating the tight radial retention of the cap 40 on the cup 20.
  • the axial retention of the cap 40 in the cup 20 is thus afforded mainly through the frictional radial contact between the sealing membrane 85 and the cup 20.
  • the outside diameter, or more generally the greatest dimension in the transverse direction, of the sealing membrane 85 in the non-deformed position of said membrane is less than the inside diameter of the inner axial rib 33b of the annular flange 33 of the mounting ring 30.
  • the outside diameter, or more generally the greatest dimension in the transverse direction, of the sealing membrane 85 when said membrane is in the deformed position is greater than the inside diameter of the inner axial rib 33b of the annular flange 33 of the mounting ring 30.
  • the axial rib 33b of the mounting ring 30 collaborates with the sealing membrane 85 when said membrane is in the deformed position, allowing additional axial retention of the cap 40 in the cup 20.
  • the annular sealing membrane 85 is made from an elastically deformable material, for example an elastomer.
  • the support 81 of the sealing member 80 is made from a material that is more rigid than the material of the sealing membrane. What is meant by a material that is “rigid” is a material that is configured not to deform under the action of an external force.
  • the support 81 is made from a rigid material such as plastic, metal, or any other material that is more rigid than the annular sealing membrane 85.
  • the unlocking member 90 takes the form of a push-button comprising a body 91 of cylindrical overall shape, an upper wall 92 and a plurality of unlocking fingers 93, in this instance three of them, which are intended to be inserted into a corresponding unlocking slot 56 in the inner skirt 51 of the main body 50.
  • a different number of unlocking fingers for example more than or equal to two, could be provided.
  • the body 91 of the unlocking member is mounted radially inside the inner skirt 52 of the main body 50.
  • Each unlocking finger 93 comprises a chamfered or inclined lower end 94 matched in terms of shape to the chamfered surface 75c of the locking portion 75b of the locking tab 75.
  • the body 91 of the unlocking member 90 delimits an internal duct 91a for receiving an upper end of a return member 98, in this instance a helical spring.
  • the return member 98 comprises a lower end, opposite to the upper end, intended to be mounted in a housing 82a made in the rigid support 81 of the sealing member 80.
  • the return member 98 is thus mounted between the unlocking member 90 and the sealing member 80 and is configured to return the unlocking member 90 to its initial rest position, visible in Figures 3 to 6.
  • the return member 98 could be mounted between the unlocking member 90 and the locking member 70.
  • the locking/unlocking of the cap 40 with respect to the cup 20 is achieved as follows.
  • each of the flexible prongs 76 of the locking member 70 is elastically flexed or compressed against the interior surface of the end wall 53 of the main body 50.
  • the washer 60 Because the washer 60 is secured to the main body 50, it moves axially simultaneously with the main body 50. Thus, as the main body 50 moves axially, the washer 60, and notably the main portion 61 thereof, moves along the axial portion 87 of the annular sealing membrane 85 until it comes to press axially on the radial projection 88 of said membrane 85.
  • the axial pressure on the radial projection 88 causes the elastic deformation of the axial portion 87 which adopts a shape that is curved, which is to say concave, towards the inside or, in other words, bulges towards the outside in the radial direction.
  • the curved or bulging shape of the axial portion 87 of the sealing membrane 85 is in tight radial contact with the lateral wall 22 of the cup 20.
  • the cap 40 finds itself in the locked position visible in Figures 5 and 6.
  • the sealing membrane 85 is thus configured to deform under the axial pressure of the first assembly against said membrane 85 and to revert to its initial position when said pressure ceases.
  • Such a bulging shape of the sealing membrane 85 makes it possible to maintain elastic mobility in the radial direction between the cap 40 and the cup 20, something which can be beneficial for absorbing the manufacturing tolerances of the components of the cap and/or of the cup 20.
  • the radial expansion of the sealing membrane 85 during the axial movement of the main body 50 means that the cap 40 can be retained reliably on the cup 20 through radial friction, while at the same time ensuring satisfactory sealing between said cap 40 and the cup 20.
  • the sealing membrane 85 is deformed in the radial direction so as to exhibit a greatest exterior dimension in the radial direction, typically a greatest outside diameter, greater than a greatest interior dimension in the radial direction, typically a greatest inside diameter, of the lateral wall 22 of the cup 20.
  • the user presses axially on the unlocking member 90 towards the locking member 70.
  • the unlocking fingers 93 move axially in the corresponding unlocking slot 56 of the inner skirt 52 of the main body 50 and the chamfered portion 94 thereof comes into contact with the inclined surface 75c of the locking portion 75b of the locking member 70.
  • Said chamfered portion 94 moves the flexible locking tab 75 radially outwards and the flexible prongs 76, flexed elastically in the locked position, relax to revert to their initial shape, causing the main body 50 to move axially away from the locking member 70 until the locking portion 75b of the locking tab 75 passes axially under the inner skirt 52 of the main body 50.
  • the relaxation of the flexible prongs 76 occurs along the same axis as the pressure on the unlocking button 90 to unlock the cap 40.
  • the washer 60 When the cap 40 is in the unlocked position, the washer 60 is situated axially some distance from the radial projection 88 of the sealing membrane 85, which reverts to its initial position, as visible in Figures 3 and 4.
  • the sealing membrane 85 When the cap 40 is in the unlocked position, the sealing membrane 85 exhibits a greatest exterior dimension in the radial direction, typically a greatest outside diameter, that is less than a greatest interior dimension in the radial direction, typically a greatest inside diameter, of the lateral wall 22 of the cup 20.
  • the locking/unlocking of the cap 40 is achieved by purely axial pressure in the one same direction, respectively on the cap 40 and on the unlocking button 90 borne by the cap 40.
  • the cap 40 When the cap 40 is in the unlocked position, the cap 40 can be removed axially in the direction away from the receptacle 10 in order to allow access to the inside of the cup 20.
  • the ring 30 remains in position to retain the cup 20 on the receptacle 10.
  • the mechanism for locking/unlocking the cap 40 is housed in the main body 50, making it possible to minimize the axial size of the cap 40, and thus of the product packaging device as a whole.
  • the rib 64 is inclined by an angle of between 40° and 50°, for example equal to 45°, with respect to the elevation axis L " -T .
  • the axial portion 87 here comprises an external surface of bulging or curved shape, when no force is being applied to the membrane.
  • the rib 64 here is annular.
  • rib segments 64 for example four or more of these, intended to collaborate with the axial portion 87 of the sealing membrane 85, could be anticipated.
  • the rib 64 is delimited axially by an upper end 64a connected to the main portion 61 of the washer 60, and a lower end 64b.
  • the outside diameter of the upper end 64a is greater than the inside diameter of the axial portion 87 of the sealing membrane 85 and the outside diameter of the lower end 64b is less than the inside diameter of the axial portion 87 of the sealing membrane 85.
  • the axial portion 87 is configured to pivot about its junction with the radial portion 86 between an initial position, visible in Figures 7 and 8, and a sealing position, visible in Figures 9 and 10, in which said axial portion 87 is in radial contact with the cup 20.
  • the locking member 70 has four flexible prongs 76, arranged at 90° in the circumferential direction.
  • the plane of section in Figures 7 to 11 has been chosen so that these flexible prongs 76 do not appear in these figures.
  • the flexible prongs 76 project out from the cylindrical base 71 of the locking member 70 in a substantially oblique direction towards the main body 50 and are configured to flex elastically against said main body 50 in the locked position.
  • the assemblies formed of a locking slot 55, of an unlocking slot 56, of a locking tab 75 and of an unlocking finger 93 are four in number, arranged at 90° in the circumferential direction and situated in the same angular positions as the flexible tabs 76, such that they are not visible in these figures.
  • the washer 60 When pressure is applied to the main body 50, the washer 60, secured to the main body 50, moves axially simultaneously with the main body 50 until the rib 64 comes to press against the free end 89 of the axial portion 87, thereby causing elastic deformation by radial separation of said axial portion 87 towards the cup 20.
  • the bulging external surface of the axial portion 87 is in tight radial contact with the lateral wall 22 of the cup 20.
  • the cap 40 finds itself in the locked position visible in Figures 9 and 10.
  • Such a bulging shape of the sealing membrane 85 means that a large area for contact between said membrane 85 and the cup 20 can be provided.
  • the radial separation of the sealing membrane 85 during the axial movement of the main body 50 means that the cap 40 can be retained reliably on the cup 20 through radial friction, while at the same time ensuring satisfactory sealing between said cap 40 and the cup 20.
  • the unlocking of the cap 40 is achieved in an identical way to the unlocking described in the previous embodiment and will not be repeated here.
  • the rib 64 of the washer 60 is situated axially some distance from the free end 89 of the axial portion 87 of the sealing membrane 85, which reverts to its initial position, as visible in Figures 6 and 7.
  • the locking/unlocking of the cap 40 is achieved by purely axial pressure in the one same direction, respectively on the cap 40 and on the unlocking button 90 borne by the cap 40.
  • the cap 40 When the cap 40 is in the unlocked position, the cap 40 can be removed axially in the direction away from the receptacle 10 in order to allow access to the inside of the cup 20.
  • the ring 30 remains in position to retain the cup 20 on the receptacle 10.
  • FIG. 11 to 14 illustrates, in general terms, a system comprising a first assembly 50, a second assembly 70 and a locking/unlocking mechanism configured to lock the first assembly 50 onto the second assembly 70 and to unlock said first assembly 50 from the second assembly 70.
  • the first assembly 50 and the second assembly 70 are coaxial and configured to adopt two distinct relative axial positions.
  • the first assembly 50 is mobile axially with respect to the second assembly 70 between a locked position in which the first assembly 50 is locked onto the second assembly 70 and an unlocked position in which the first assembly 50 is axially distanced from the second assembly 70.
  • One of the assemblies 50 is provided with an unlocking member or button 90.
  • the steps illustrated in Figures 15 to 18 illustrate the steps of locking/unlocking the two assemblies 50, 70.
  • the locking/unlocking mechanism comprises an unlocking member 90 borne by the first assembly 50 and axially mobile with respect to said first assembly between a rest position and an unlocked position.
  • the locking/unlocking mechanism further comprises at least two elastically deformable members or prongs 76 here borne by the second assembly 70.
  • the elastically deformable members 76 could be borne by the first assembly 50.
  • the transition of the two assemblies from the unlocked position to the locked position is achieved by the first assembly 50 moving closer towards the second assembly 70, and the transition from the locked position to the unlocked position is achieved by axial pressure on the unlocking member 90 in combination with the relaxation of the elastically deformable members 76 that are flexed elastically between the first and the second assemblies in the locked position.
  • the first assembly 50 illustrated entirely nonlimitingly in the form of the main body of a cap 40, comprises an inner skirt 52 comprising circumferential locking slots 55 extending in a circumferential direction and uniformly spaced apart from one another.
  • the number of circumferential locking slots 55 may be equal to one, two, or greater than or equal to three, preferably uniformly distributed in the circumferential direction.
  • the locking slots 55 are each intended to collaborate with a locking portion 75b of the second assembly 70.
  • the inner skirt 52 of the first assembly 50 further comprises unlocking slots 56 extending in an axial direction, along the vertical axis Z.
  • the number of unlocking slots 56 is at least equal to the number of locking slots 55.
  • the unlocking slots 56 are each intended to collaborate with an unlocking finger 93 of the unlocking member 90.
  • the unlocking slots 56 are orthogonal to the locking slots 55 and each pass across an associated locking slot. The orthogonal positioning of the slots 56, 55 ensures reliable retention of the second assembly 70 in the first assembly 50 in the locked position.
  • the inner skirt 52 comprises, at its free end, portions 57 that are chamfered in an obliquely inwards direction. As illustrated, the chamfered portions 57 are each made only in the continuation of a locking slot 55. As a variant, provision could be made for the entirety of the free end of the inner skirt 52 to be chamfered.
  • each chamfered portion 57 is inclined by an angle of between 40° and 50°, for example equal to 45°, with respect to the elevation axis L " -T .
  • the second assembly 70 illustrated entirely nonlimitingly in the form of the locking member 70, comprises a cylindrical base 71 (visible in Figure 2), an annular lip 72 connected to the cylindrical base 71 by a transverse portion 73.
  • the cylindrical base 71 radially surrounds the inner skirt 52 of the first assembly 50.
  • the base 71 comprises axial cutouts 74 and locking tabs 75 each extending into an axial cutout 74.
  • Each locking tab 75 comprises an axial portion 75a and a locking portion 75b projecting out from the free end of the axial portion 75a in a substantially inwardly oblique direction.
  • the locking portion 75b comprises a surface 75c that is chamfered or inclined towards the inside.
  • the chamfered surface 75c is matched in terms of shape to the chamfered portion 57 of the inner skirt 52.
  • the locking tabs 75 are flexible with respect to the base 71 of the locking member 70.
  • the locking tabs 75 are elastically deformable, which is to say configured, on account of their shape, to deform under the action of an external force and to revert to their initial position when said external force ceases.
  • the locking portion 75b of the locking tabs 75 is intended to snap-fasten into a corresponding locking slot 55 of the inner skirt 52 of the first assembly 50 when the assemblies 50, 70 are in the locked-together position.
  • the second assembly 70 further comprises a plurality of flexible prongs 76 projecting out from the annular lip 72 in a substantially oblique direction towards the first assembly 50.
  • the number of flexible prongs may be equal to two, or greater than or equal to three disjointed flexible prongs, preferably uniformly distributed in the circumferential direction.
  • the free end of the flexible prongs 76 is advantageously in permanent contact with the interior surface of the end wall 53 of the first assembly 50.
  • the flexible prongs 76 are elastically deformable, which is to say configured, on account of their shape, to deform under the action of an external force and to revert to their initial position when said external force ceases.
  • the flexible prongs 76 act like an elastic member configured to return the locking member 70 to its initial position.
  • the flexible prongs could be substituted by or associated with any other type of elastically deformable element, such as a helical spring, a block of compressible material, or the like, provided that it has a capacity for elastic deformation in a given axial direction.
  • any other type of elastically deformable element such as a helical spring, a block of compressible material, or the like, provided that it has a capacity for elastic deformation in a given axial direction.
  • the unlocking member 90 takes the form of a push-button comprising a body 91 of cylindrical overall shape, an upper wall 92 and a plurality of unlocking fingers 93 which are intended to be inserted into a corresponding unlocking slot 56 in the inner skirt 51 of the first assembly 50.
  • the body 91 of the unlocking member is mounted radially inside the inner skirt 52 of the first assembly 50.
  • Each unlocking finger 93 comprises a chamfered or inclined lower end 94 matched in terms of shape to the chamfered surface 75c of the locking portion 75b of the locking tab 75.
  • the locking/unlocking of the first assembly 50 with respect to the second assembly 70 is achieved as follows, the first assembly 50 being considered to be the component that is mobile axially with respect to the second assembly 70, and the second assembly 70 being considered as being axially fixed.
  • the user presses axially on the unlocking member 90 towards the second assembly 70, in the direction of the arrow F2 illustrated in Figure 13, in the same direction as the axial pressure for locking the first assembly 50 on the second assembly 70.
  • the unlocking fingers 93 move axially in the corresponding unlocking slot 56 of the inner skirt 52 of the first assembly 50 towards the second assembly 70.
  • the chamfered portion 94 of the unlocking fingers 93 comes respectively into contact with the inclined surface 75c of a locking portion 75b of the second assembly 70.
  • Said chamfered portion 94 moves the flexible locking tab 75 away radially outwards, in the direction of the arrow Y 1 illustrated in Figure 13.
  • the flexible prongs 76 elastically flexed in the locked position, relax to revert to their initial shape, causing the first assembly 50 to move axially, in the direction of the arrow F3 illustrated in Figure 14, away from the second assembly 70 until the locking portion 75b of the locking tab 75 of the second assembly 70 passes axially under the inner skirt 52 of the first assembly 50.
  • the locking/unlocking of the first assembly 50 with respect to the second assembly 70 is achieved by purely axial pressure in the one same direction, respectively on the first assembly 50 and on the unlocking button 90 borne by the first assembly 50.
  • unlocking button 90 When the unlocking button 90 is released, it returns to its initial position visible in Figure 11 through the agency of a return member (not illustrated in Figures 11 to 14) mounted axially between the unlocking member 90 and the second assembly 70.
  • the return member may be, for example, a spring or a flexible element.
  • the transition from the unlocked position to the locked position is achieved by the first assembly 50 moving axially closer towards the second assembly 70
  • the transition from the locked position to the unlocked position is achieved by axial pressure on the unlocking button 90 in combination with the relaxation of the flexible prongs 76 that are elastically flexed between the first and the second assemblies 50, 70.
  • the axial pressure on the unlocking button 90 and the relaxation of the flexible prongs 76 are achieved along the one same axis, which is to say in the one same axial direction.
  • the locking/unlocking mechanism comprises the unlocking member 90, the locking tabs 75, the locking slots 55 and unlocking slots 56, as well as the elastically deformable member, here in the form of at least two flexible prongs 76.
  • the flexible prongs 76 project out from an annular lip 72 of the locking member 70.
  • the flexible prongs 76 could project out either from the external contour of the transverse wall 73 or from the base 71.
  • a combination of flexible prongs 76 projecting out from the base 71 of the locking member 70 and of flexible prongs 76 projecting out from the annular lip or the external contour of the transverse wall 73 of the locking member 70 could also be provided.
  • the base 71 and the transverse wall 73 of the locking member 70 form a rigid body and the flexible prongs 76 extend out from said rigid body in a substantially oblique direction towards the first assembly 50.
  • the invention also covers any technically conceivable possibility for structurally inverting the components used within the device.
  • the flexible prongs 76 could be borne by the first assembly 50.
  • the elastically deformable flexible prongs would be formed as one with said first assembly 50 and could project out from the first assembly towards the second assembly 70.
  • the cap 40 comprises at least two elastically deformable flexible prongs 76 extending between the first assembly 50 and the second assembly 70, said prongs 76 being elastically flexed or compressed between the first assembly 50 and the second assembly 70 when the cap is in the locked position.
  • FIG. 15 to 18 illustrates, in general terms, a system comprising a first assembly 50, a second assembly 70 and a locking/unlocking mechanism configured to lock the first assembly 50 onto the second assembly 70 and to unlock said first assembly 50 from the second assembly 70.
  • the steps of locking/unlocking the two assemblies 50, 70 illustrated in Figures 15 to 18 only differ from the steps illustrated in Figures 11 to 14 by the fact that the flexible prongs 76 extend as a projection from the base 71 of the second assembly 70 in a substantially oblique direction towards the first assembly 50, said prong 76 being configured to flex elastically against the first assembly 50 when the cap 40 is in the locked position.
  • the flexible prongs 76 could extend as a projection either from the external contour of the transverse wall 73 or from the base 71.
  • the base 71 and the transverse wall 73 of the second assembly 70 form a rigid body and the flexible prongs 76 extend as a projection from said rigid body in a substantially oblique direction towards the first assembly 50.
  • the set of gestures required for opening the receptacle is modified so as to simplify the handling of said receptacle, while at the same time ensuring frictional retention and satisfactory radial sealing.
  • simply pressing axially on the cap allows radial retention by friction between the cap, notably the sealing gasket, and the cup to be achieved, in order to lock the cap on the cup and ensure sealing, and simply pressing axially on the unlocking button allows the receptacle to be opened without unscrewing the cap.
  • the cap can be locked/unlocked with just one hand.
  • the cup can be removed and fixed in place easily.

Landscapes

  • Closures For Containers (AREA)

Abstract

Dispositif (1) de conditionnement d'un produit, en particulier un produit cosmétique, comprenant : - un récipient (10) s'étendant le long d'un axe d'élévation (Z-Z') ; - une coupelle (20) montée de manière amovible dans le réceptacle (10) ; - une bague de fixation (30) fixée de manière amovible sur le récipient (10) et conçue pour retenir la coupelle (20) dans le récipient (10) ; et - un bouchon (40) monté de manière amovible sur le récipient (10) de manière à pouvoir être déplacé entre une position verrouillée dans laquelle le bouchon (40) est maintenu de manière étanche dans la coupelle (20) par frottement radial et une position déverrouillée dans laquelle le bouchon (40) peut être séparé axialement du récipient (10) le long de l'axe d'élévation (Z-Z'), laissant un accès à l'intérieur de la coupelle (20).
PCT/EP2021/084714 2020-12-10 2021-12-08 Dispositif de conditionnement d'un produit, notamment un produit cosmétique, comprenant un bouchon verrouillé et déverrouillé par pression axiale WO2022122791A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FRFR2013029 2020-12-10
FR2013029A FR3117463B1 (fr) 2020-12-10 2020-12-10 Dispositif de conditionnement d’un produit, notamment cosmétique, comprenant un capot verrouillé et déverrouillé par appui axial.
FRFR2013031 2020-12-10
FR2013031A FR3117460B1 (fr) 2020-12-10 2020-12-10 Système comprenant deux ensembles mobiles et un mécanisme de verrouillage/déverouillage desdits ensembles.

Publications (1)

Publication Number Publication Date
WO2022122791A1 true WO2022122791A1 (fr) 2022-06-16

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PCT/EP2021/084714 WO2022122791A1 (fr) 2020-12-10 2021-12-08 Dispositif de conditionnement d'un produit, notamment un produit cosmétique, comprenant un bouchon verrouillé et déverrouillé par pression axiale

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WO (1) WO2022122791A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5363831B2 (ja) 2009-02-23 2013-12-11 エム・エフ・ヴィ株式会社 容器装置
US20140353274A1 (en) 2013-06-04 2014-12-04 Emil Benson Bottle cap apparatus
US20180132592A1 (en) * 2016-11-11 2018-05-17 Ctk Co., Ltd. Cosmetic container configured to be opened and closed by operation of cap in one-touch manner
KR102015834B1 (ko) 2018-04-03 2019-08-29 (주)더페이스샵 화장품 용기용 원터치 캡
WO2020032310A1 (fr) 2018-08-08 2020-02-13 (주)장업시스템 Récipient de produit cosmétique ayant une structure d'ouverture et de fermeture par simple pression

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5363831B2 (ja) 2009-02-23 2013-12-11 エム・エフ・ヴィ株式会社 容器装置
US20140353274A1 (en) 2013-06-04 2014-12-04 Emil Benson Bottle cap apparatus
US20180132592A1 (en) * 2016-11-11 2018-05-17 Ctk Co., Ltd. Cosmetic container configured to be opened and closed by operation of cap in one-touch manner
KR102015834B1 (ko) 2018-04-03 2019-08-29 (주)더페이스샵 화장품 용기용 원터치 캡
WO2020032310A1 (fr) 2018-08-08 2020-02-13 (주)장업시스템 Récipient de produit cosmétique ayant une structure d'ouverture et de fermeture par simple pression

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