EP3654800B1 - Cam mechanism, in particular for a cosmetic product applicator - Google Patents
Cam mechanism, in particular for a cosmetic product applicator Download PDFInfo
- Publication number
- EP3654800B1 EP3654800B1 EP18752595.1A EP18752595A EP3654800B1 EP 3654800 B1 EP3654800 B1 EP 3654800B1 EP 18752595 A EP18752595 A EP 18752595A EP 3654800 B1 EP3654800 B1 EP 3654800B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- rod
- skirt
- cam mechanism
- rotation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000002537 cosmetic Substances 0.000 title claims description 13
- 230000000295 complement effect Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 4
- 235000011837 pasties Nutrition 0.000 claims description 4
- 239000000463 material Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920001634 Copolyester Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000007934 lip balm Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
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
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
- A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
- A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw
-
- 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
- A45D2200/054—Means for supplying liquid to the outlet of the container
- A45D2200/055—Piston or plunger for supplying the liquid to the applicator
Definitions
- the present disclosure relates to an applicator as used in the field of cosmetic products, and more particularly to a cam mechanism which can be used in such an applicator.
- a cam mechanism can however be used for other applications.
- Such an applicator is described in the document FR 928 233 .
- the mechanism disclosed in this document is a telescopic mechanism comprising three elements.
- a ring mounted to rotate with respect to the body of the applicator makes it possible to drive a first of the elements in rotation, which successively triggers a rotation of the other two elements, one after the other, and expels the cosmetic product out of it.
- the document FR 2 922 532 A1 discloses another cosmetic applicator comprising a telescopic mechanism.
- the present invention relates to a cam mechanism according to claim 1.
- a cam mechanism in particular for an applicator for a cosmetic product, comprising a rod, a sheath, a sleeve, a skirt and a body, in which the sheath is integral in rotation with the rod and capable of sliding relative to the rod, the skirt is integral in rotation with the sleeve and capable of sliding relative to the sleeve, the sleeve is integral in rotation with the body and capable of sliding relative to the body, the sheath cooperating with the skirt so that the rotation of the sleeve relative to the skirt causes axial movement of the skirt relative to the sleeve, the sleeve cooperating with the rod and the sleeve so that the rotation of the rod relative to the sleeve causes axial movement of the sleeve relative to the rod, the axial movement of the sleeve
- a cam mechanism is, within the meaning of the present disclosure, a mechanism making it possible to transform a rotational movement into a translational movement or the reverse.
- the body, the rod, the sleeve, the sleeve and the skirt are assembled so that a rotation of the rod causes, in fine , a translation of the skirt.
- the sleeve is simultaneously integral in rotation with the rod and configured to slide relative to the rod.
- the skirt is simultaneously integral in rotation with the sleeve and configured to slide relative to the sleeve.
- the sleeve is simultaneously integral in rotation with the body and configured to slide relative to the body.
- the axial direction is defined by the axis of the rotation considered.
- a radial direction is a direction perpendicular to the axial direction and intersecting this axis.
- an axial plane is a plane containing the axis and a radial plane is a plane perpendicular to this axis.
- the sleeve and the sleeve are driven in an axial movement relative to the rod, which forms a first deployment.
- the rotation of the rod causes rotation of the sleeve.
- the rotation of the sleeve in turn causes an axial movement of the skirt, which forms a second deployment.
- the various parts of the cam mechanism according to the present disclosure are deployed simultaneously, which makes it possible to distribute the forces between the parts and to limit their wear.
- the deployment of the mechanism measured for example by the axial speed of the skirt relative to the rod, is faster than for the devices of the state of the art.
- this mechanism is particularly compact and allows, in its use in a cosmetic applicator, a regular distribution rate due to the simultaneity of the two deployments.
- the rod, the sheath, the sleeve, the skirt and the body are coaxial.
- the cam mechanism may be a telescopic mechanism configured to deploy in the axial direction.
- the rod, the sleeve, the skirt, the sleeve and the body are arranged radially around each other, particularly in that order.
- the rod, the sheath, the sleeve, the skirt and the body are not necessarily symmetrical in revolution, at least because of the means of securing in rotation that they may have.
- the rod has a thread engaged with a complementary thread of the sleeve.
- a thread can designate indifferently a male thread or a female thread, sometimes called tapping.
- tapping a male or female thread of the rod is engaged with a complementary female or male thread, respectively, of the sleeve.
- the skirt has a thread engaged with a complementary thread of the sleeve.
- an alternative to the threads could comprise at least one radial protuberance, for example of the rod, engaged in a helical slot, for example of the sleeve.
- the sleeve comprises a tubular body and a transverse wall extending transversely with respect to the tubular body, said transverse wall comprising said complementary thread of the sleeve.
- the tubular body can extend in the axial direction, around the axis.
- the complementary thread can be provided on the outer periphery of the wall or in an internal hole in the wall.
- the sleeve is configured to bear axially on the transverse wall of the sleeve.
- the transverse wall exerts on the sleeve a force which drives the sleeve to slide in the axial direction.
- means for securing the rod in rotation with the sheath and / or means for securing the skirt with the sleeve and / or means for securing the sleeve with the body comprise a radial protuberance engaged in a axial slit.
- the axial slot can be a groove, a cutout or the like.
- the slot can extend substantially axially.
- the protrusion can be a rib, a tongue, a lug or the like.
- the protrusion may project radially, in the direction of the slot.
- the slot forms a guide for the axial sliding of the protuberance, while limiting its radial travel, therefore ensuring a connection in rotation.
- This disclosure also relates to an applicator for a liquid or pasty product, in particular a cosmetic product, comprising a reservoir capable of containing said product and a release mechanism.
- a reservoir capable of containing said product and a release mechanism.
- cam as previously described.
- the reservoir may be formed between the skirt of the cam mechanism and a wall of the applicator comprising an opening for dispensing the product. The movement of the skirt relative to the rod can reduce the size of the reservoir, and consequently cause the product to be dispensed through the opening.
- the applicator comprises an applicator tip provided with an opening communicating with the interior of the reservoir, and the cam mechanism is housed at one end of the applicator opposite the opening.
- the skirt is part of a piston configured to push the product out of the reservoir.
- the body of the cam mechanism forms the body of the applicator defining the reservoir.
- the body of the applicator and the body of the cam mechanism are one and the same part.
- the body of the cam mechanism may be a separate part from the body of the applicator; in these embodiments, the cam mechanism can be housed in the body of the applicator, the body of the cam mechanism being locked in rotation, or even axially, relative to the body of the applicator.
- the applicator comprises a base rotatably mounted relative to the body and the rod is rotatably integral with the base.
- the rotation of the base causes a rotation of the rod and the deployment of the cam mechanism which follows.
- the axial position of the rod relative to the base and / or to the body can be fixed.
- top, bottom, top, bottom are to be understood in a relative sense only, with reference to the drawings. They make it possible to distinguish two essentially opposite locations, without prejudging the orientation of the device in space.
- straight line connecting a “high” point to a “low” point is not necessarily vertical in the usual sense of the term.
- FIGS. figures 1 to 4 A cam mechanism according to one embodiment and an applicator comprising such a mechanism are illustrated in the FIGS. figures 1 to 4 .
- the figure 1 is a perspective view of an applicator 100 of a liquid or pasty product, in particular as an applicator of a cosmetic product, for example of the lipstick, lip balm, cream, lip gloss, complexion corrector, foundation type, eye shadow, etc.
- the applicator 100 comprises a body 110, here substantially tubular, or even with symmetry of revolution, about an axis X.
- the axis X here defines an axial or longitudinal direction.
- the body forms a reservoir capable of containing said product.
- the body 110 is optionally provided, at one of its ends, here its upper end, with an applicator tip 112 which may be integral with the body 110, or alternatively be formed by a part. independent attached to the body 110.
- the shape of the tip optimizes the application of the product.
- the tip 112 has a bevelled outer surface 113, inclined with respect to the X axis of the applicator.
- the bevelled outer surface 113 may be textured or made of another material that is more pleasant to the touch, this other material being, for example, molded onto the end piece 112.
- the product is dispensed onto the applicator tip 112 through an opening 114.
- the opening 114 opens onto the applicator tip 112, more particularly onto the outer surface 113, and communicates fluidly with the reservoir of product.
- the applicator 100 comprises a cam mechanism 10.
- the cam mechanism 10 comprises a rod 20, a sleeve 30, a sleeve 40 and a skirt 50.
- the cam mechanism 10 is shown fully extended.
- the rod 20 is substantially rectilinear and here extends along the X axis of the applicator.
- the rod 20 is in this case a solid rod, but it could also be provided hollow.
- the rod 20 has a thread 22, in this case a male thread.
- the thread 22 may be provided on an outer periphery of the rod 20.
- the thread 22 extends substantially over the entire length of the rod 20, in the axial direction.
- the rod 20 could include a non-threaded part, for example at its upper end, so as to form a stop and prevent the element engaged with the thread 22 from coming out of it.
- the rod 20 comprises at least one axial slot, in this case two diametrically opposed grooves 24.
- the grooves 24 extend substantially axially.
- the grooves 24 are recessed towards the inside of the rod 20.
- the grooves 24 interrupt the thread 22.
- the rod 20 could have an oblong shape in cross section, the thread 22 being provided at least on the walls curved oblong shape.
- the rod 20 can be assembled to a base 26, typically at one of its ends, for example its lower end.
- the base 26 comprises a base 27 in the form of a disc, substantially circular, from which protrudes an edge 28, here substantially cylindrical.
- the edge 28 projects from the base 27 on the same side as the rod 20.
- the rod 20 and the edge 28 are each substantially orthogonal to the base 27.
- the rod 20 and the base 26 are made in one piece.
- the rod 20 and the base 26 could form two distinct parts, assembled to one another.
- the sleeve 30 is substantially cylindrical, here with a circular section, and more particularly coaxial with the rod 20.
- the sleeve 30 is, in this embodiment, placed radially outside the rod 20, that is to say radially around the rod 20.
- the sleeve 30 has a thread 32, in this case a male thread.
- the thread 32 may be provided on an outer periphery of the sleeve 30.
- the thread 32 extends substantially over the entire length of the sleeve 30, in the axial direction.
- the sleeve 30 comprises, at one of its ends, here its lower end, a bearing portion 36.
- the bearing portion 36 here has a larger external section than the external section of the thread. 32.
- the sleeve 30 could include a non-threaded part, for example at its end opposite to the bearing part 36, so as to form a stop and prevent the element engaged with the thread 32 from coming off it. .
- the radially internal surface of the sleeve 30 is here a smooth, non-threaded surface with a diameter greater than the diameter of the thread 22.
- the sleeve 30, and more particularly said radially internal surface comprises at least one radial protuberance, in this case two diametrically opposed ribs 34.
- the ribs 34 extend substantially axially.
- the ribs 34 project towards the inside of the sleeve 30, that is to say radially towards the rod 20.
- the ribs 34 of the sleeve 30 are engaged in the grooves 24 of the rod 20.
- the grooves 24 and the ribs 34 thus form rotational locking means, whereby the sleeve 30 is integral in rotation with the rod 20 but the sleeve 30 remains free in translation with respect to rod 20.
- the sleeve 40 is here coaxial with the rod 20 and placed, in this embodiment, radially outside the rod 20 and the sleeve 30, that is to say radially around the rod 20 and the sleeve 30
- the sleeve 40 comprises a tubular body 41 and a transverse wall 46 extending transversely with respect to the tubular body 41.
- the tubular body 41 is substantially cylindrical around the axis X, of circular section.
- the internal diameter of the tubular body 41 may be greater than the external diameter of the rod 20 and of the sleeve 30.
- the transverse wall 46 extends substantially perpendicularly relative to the tubular body 41, in this case towards the inside of the tubular body 41.
- the transverse wall 46 comprises an orifice the periphery of which is provided with a thread. 42.
- Said orifice may be formed substantially in the center of the transverse wall 46, which forms a ring around said orifice.
- the thread 42 of the sleeve is a complementary thread to the thread 22 of the rod 20.
- the complementary thread 42 is in this case a female thread.
- the complementary thread 42 extends substantially over the entire thickness of the transverse wall 46, in the axial direction.
- the thread 22 of the rod and the complementary thread 42 of the sleeve thus form cam means, by which the rotation of the rod 20 relative to the sleeve 40 causes axial movement of the sleeve 40 relative to the rod 20.
- the rotation of the rod 20 relative to the body 110 causes axial movement of the sleeve 40 relative to the body 110 .
- the sleeve 40 has at least one axial slot, in this case a cutout 44 (see figures 3 and 4 ).
- the cutout 44 extends substantially axially.
- the sleeve 30 is configured to bear axially on the transverse wall 46 of the sleeve 40.
- the bearing portion 36 bears against the transverse wall 46.
- the bearing portion is even axially secured to the sleeve 40, here by clipping.
- the sleeve 30 is then integral in translation with respect to the sleeve 40 but remains free in rotation with respect to the latter.
- an axial movement of the sleeve 40 drives the sleeve 30 in the same axial direction with respect to the rod 20, at least in one direction, here in both directions.
- the skirt 50 is here coaxial with the sleeve 30 and placed, in this embodiment, radially outside the rod 20 and the sleeve 30, that is to say radially around the rod 20 and the sleeve 30, and radially inside the sleeve 40, at least inside the tubular body 41.
- the skirt 50 has a thread 52 on its internal surface.
- the thread 52 of the skirt is a complementary thread to the thread 32 of the sleeve 30.
- the complementary thread 52 is in this case a female thread.
- the complementary thread 52 extends substantially over the entire length of the skirt 50, in the axial direction.
- the thread 32 of the sleeve and the complementary thread 52 of the skirt thus form cam means, by which the rotation of the sleeve 30 relative to the skirt 50 causes axial movement of the skirt 50 relative to the sleeve 30.
- the radially outer surface of the skirt 50 is here a smooth, non-threaded surface with a diameter smaller than the internal diameter of the sleeve 40.
- the sleeve 40 and the skirt 50 are able to slide relative to each other. the other, especially in the axial direction.
- the skirt 50 may comprise at least one radial protuberance, in this case a tongue 54.
- the tongue 54 can be provided only on a lower part of the skirt 50.
- the tongue 54 forms projects outwards from the skirt 50, that is to say radially towards the sleeve 40.
- the tongue 54 of the skirt 50 is engaged in the cutout 44 of the sleeve 40.
- the cutout 44 and the tongue 54 thus form means for locking in rotation, whereby the skirt 50 is integral in rotation with the sleeve 40 but free in translation with respect to the latter.
- the cam mechanism 10 is a telescopic mechanism in which the rod 20, the sleeve 30, the skirt 50, the sleeve 40 and the body 110 are coaxial and arranged around each other radially in that order, from the inside to the outside.
- this order could be changed, at the very least reversed.
- the rotation of the rod 20 relative to the sleeve 40 causes, via the cooperation of the grooves 24 and the ribs 34, a corresponding rotation of the sleeve 30, while the skirt 50 is integral in rotation with the sleeve 40 due to the engagement of the tongue 54 in the slot 44.
- the sleeve 30 is driven in rotation relative to the skirt 50, which causes, due to the cooperation of the threads 32, 52, an axial movement of the skirt 50
- the axial displacement of the skirt 50 relative to the sleeve 30 forms a second deployment.
- this telescopic mechanism allows the simultaneous double deployment of the members of the cam mechanism 10 in the axial direction. This allows for regular deployment and therefore better controlled distribution of the product. In addition, this makes it possible to have a compact mechanism and therefore to be able to contain more product in a given volume.
- the body 110 of the cam mechanism 10 can form the body of the applicator 100.
- the cam mechanism 10 can preferably be provided opposite the opening 114 for dispensing the product.
- the body 110 is made of transparent material, for example copolyester or polycarbonate.
- the body 110 can be covered with a covering element 115, in particular opaque, extending axially, here in a substantially cylindrical manner.
- a covering element 115 in particular opaque, extending axially, here in a substantially cylindrical manner.
- the covering element 115 is here mounted on a ring 116 integral with the body 110 and bears on a shoulder 117 of the body 110.
- the covering element 115 can be made of metal, for example aluminum, or of a material. thermoplastic possibly covered with a metallic coating.
- the covering element can be fixed by snap-fastening, gluing, screwing, or even recessing.
- a hoop 118 for example made of thermoplastic material, may at least partially surround the body 110 and / or the covering element 115.
- the hoop 118 can bear on the ring 116 of the body 110.
- the hoop 118 may be provided. to facilitate the gripping of the applicator 100 by the user.
- the hoop 118 is here an aesthetic element which also serves for fixing the cover.
- the applicator 100 can also include a base 120 rotatably mounted on the body 110, preferably at one end of the body 110 opposite the applicator tip 112, in this case a lower end of the body 110.
- the base 120 here a ring, can be assembled to the body 110 by means known per se.
- the base 120 has for axis of rotation the X axis of the applicator 100.
- the hoop 118 and the base 120 are integral.
- the applicator 100 can also include a cap 130 configured to cover the applicator tip 112 and, where appropriate, to seal it. Sealing means (not shown) can be provided inside the cap 130 and / or at the interface between the cap 130 and the body 110, the covering element 115 or the band 118, as appropriate. .
- the cam mechanism 10 can be mounted in the applicator 110 as follows: the rod 20 can be mounted integral in rotation with the base 120, for example by fixing the base 26 inside the base 120, typically by gluing, hooping, crimping, etc. Splines can be provided between the base 26 and the base 120 for driving in rotation, and / or a snap can be provided for the axial locking.
- the sleeve 40 can be housed in the body 110.
- the applicator has locking means for locking the sleeve 40 in rotation with respect to the body 110.
- the sleeve 40 here has a lug 48. , projecting radially from its outer surface, and configured to cooperate with an axial slot 111 of the inner surface of the body 110.
- the sleeve 40 is locked in rotation with respect to the body 110.
- the skirt 50 locked in rotation with respect to the sleeve 40, is also locked in rotation with respect to the body 110.
- the rod 20 and consequently the sleeve 30, integral in rotation with the rod 20 are mounted to rotate relative to the body 110.
- it is possible to drive the rod 20 in rotation relative to the sleeve 40 by simply rotating the base 120 relative to the body 110.
- the skirt 50 has, in its upper part, a piston element 58 with which said skirt 50 forms a piston configured to push the product out of the tank.
- the applicator 100 comprises a reservoir formed in the body 110, between the applicator tip 112 and the skirt 50, more particularly the piston element 58.
- the piston element 58 closes the body 110 transversely to its axis. X displacement.
- the piston element 58 comprises a scraper collar 56, arranged radially around an upper part of the skirt 50.
- the scraper collar 56 comprises a substantially frustoconical part formed of a flexible material, for example. example of polyethylene, base density polyethylene, or polypropylene.
- the scraper collar 56 is force-fitted in the body 110, so that its free end is folded over the body 110 by an elastic restoring force. This force makes it possible not only to guarantee the tightness of the reservoir, located here in the upper part of the body 110 with respect to the scraper collar 56, but also to scrape the walls of the body 110, when the skirt 50 is raised, so as to minimize the remainder of unused product in the tank.
- the upper end of the piston member 58 can be configured to substantially conform, at least in part, to the interior shape of the applicator tip 112. This is facilitated by the fact that, as is the case, has seen previously, the piston element 58 is locked in rotation with respect to the body 110, here by means of the sleeve 40.
- the applicator 100 can be an applicator of a solid cosmetic product such as a stick of lipstick.
- the open end of the body 110 could be opened more widely to allow the exit of the stick of lipstick.
- the piston element 58 could comprise a cup or any other suitable means for keeping the cosmetic product solid. In such embodiments, a scraper collar is not useful.
- axis of the cam mechanism 10 is here coincident with the X axis of the applicator 100, these axes could be distinct, mutually parallel or not.
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Description
Le présent exposé concerne un applicateur tel qu'utilisé dans le domaine des produits cosmétiques, et plus particulièrement un mécanisme de came pouvant être employé dans un tel applicateur. Un tel mécanisme de came peut toutefois être utilisé pour d'autres applications.The present disclosure relates to an applicator as used in the field of cosmetic products, and more particularly to a cam mechanism which can be used in such an applicator. Such a cam mechanism can however be used for other applications.
Dans le domaine des applicateurs cosmétiques, on connaît des applicateurs de produit liquide ou pâteux comprenant un corps, dans lequel est contenu le produit, et un mécanisme permettant d'expulser le produit du corps par une ouverture prévue dans le corps.In the field of cosmetic applicators, there are known applicators for liquid or pasty product comprising a body, in which the product is contained, and a mechanism making it possible to expel the product from the body through an opening provided in the body.
Un tel applicateur est décrit dans le document
Un besoin pour un nouveau type de mécanisme de came a cependant été constaté.A need for a new type of cam mechanism has, however, been observed.
La présente invention concerne un mécanisme de came selon la revendication 1. Les caractéristiques préférées de l'invention sont exposées dans les revendications dépendantes. A cet effet, le présent exposé concerne un mécanisme de came, en particulier pour un applicateur pour produit cosmétique, comprenant une tige, un fourreau, un manchon, une jupe et un corps, dans lequel le fourreau est solidaire en rotation de la tige et apte à coulisser par rapport à la tige, la jupe est solidaire en rotation du manchon et apte à coulisser par rapport au manchon, le manchon est solidaire en rotation du corps et apte à coulisser par rapport au corps, le fourreau coopérant avec la jupe de sorte que la rotation du fourreau par rapport à la jupe provoque un mouvement axial de la jupe par rapport au fourreau, le manchon coopérant avec la tige et le fourreau de sorte que la rotation de la tige par rapport au manchon provoque un mouvement axial du manchon par rapport à la tige, le mouvement axial du manchon entraînant, au moins dans un sens, le fourreau en coulissement par rapport à la tige.The present invention relates to a cam mechanism according to claim 1. Preferred features of the invention are set out in the dependent claims. To this end, the present disclosure relates to a cam mechanism, in particular for an applicator for a cosmetic product, comprising a rod, a sheath, a sleeve, a skirt and a body, in which the sheath is integral in rotation with the rod and capable of sliding relative to the rod, the skirt is integral in rotation with the sleeve and capable of sliding relative to the sleeve, the sleeve is integral in rotation with the body and capable of sliding relative to the body, the sheath cooperating with the skirt so that the rotation of the sleeve relative to the skirt causes axial movement of the skirt relative to the sleeve, the sleeve cooperating with the rod and the sleeve so that the rotation of the rod relative to the sleeve causes axial movement of the sleeve relative to the rod, the axial movement of the sleeve causing, at least in one direction, the sleeve to slide relative to the rod.
Un mécanisme de came est, au sens du présent exposé, un mécanisme permettant de transformer un mouvement de rotation en un mouvement de translation ou l'inverse. Comme il sera détaillé par la suite, dans le présent mécanisme de came, appelé plus simplement « mécanisme », le corps, la tige, le fourreau, le manchon et la jupe sont assemblés de sorte qu'une rotation de la tige entraîne, in fine, une translation de la jupe.A cam mechanism is, within the meaning of the present disclosure, a mechanism making it possible to transform a rotational movement into a translational movement or the reverse. As will be detailed later, in the present cam mechanism, called more simply "mechanism", the body, the rod, the sleeve, the sleeve and the skirt are assembled so that a rotation of the rod causes, in fine , a translation of the skirt.
Le fourreau est simultanément solidaire en rotation de la tige et configuré pour coulisser par rapport à la tige. De même, la jupe est simultanément solidaire en rotation du manchon et configurée pour coulisser par rapport au manchon. Enfin le manchon est simultanément solidaire en rotation du corps et configuré pour coulisser par rapport au corps.The sleeve is simultaneously integral in rotation with the rod and configured to slide relative to the rod. Likewise, the skirt is simultaneously integral in rotation with the sleeve and configured to slide relative to the sleeve. Finally, the sleeve is simultaneously integral in rotation with the body and configured to slide relative to the body.
Au sens du présent exposé, la direction axiale est définie par l'axe de la rotation considérée. Une direction radiale est une direction perpendiculaire à la direction axiale et coupant cet axe. De même, un plan axial est un plan contenant l'axe et un plan radial est un plan perpendiculaire à cet axe.For the purposes of the present disclosure, the axial direction is defined by the axis of the rotation considered. A radial direction is a direction perpendicular to the axial direction and intersecting this axis. Likewise, an axial plane is a plane containing the axis and a radial plane is a plane perpendicular to this axis.
Dans le présent mécanisme, lorsque la tige est mise en rotation par rapport au corps et donc par rapport au manchon, le manchon et le fourreau sont entraînés selon un mouvement axial par rapport à la tige, ce qui forme un premier déploiement. De manière simultanée, comme le fourreau et la tige sont solidaires en rotation, la rotation de la tige entraîne une rotation du fourreau. La rotation du fourreau entraîne à son tour, un mouvement axial de la jupe, ce qui forme un deuxième déploiement.In the present mechanism, when the rod is rotated relative to the body and therefore relative to the sleeve, the sleeve and the sleeve are driven in an axial movement relative to the rod, which forms a first deployment. Simultaneously, as the sleeve and the rod are integral in rotation, the rotation of the rod causes rotation of the sleeve. The rotation of the sleeve in turn causes an axial movement of the skirt, which forms a second deployment.
Ainsi, contrairement aux dispositifs de l'état de la technique, les différentes pièces du mécanisme de came selon le présent exposé se déploient simultanément, ce qui permet de répartir les efforts entre les pièces et de limiter leur usure. En outre, le déploiement du mécanisme, mesuré par exemple par la vitesse axiale de la jupe par rapport à la tige, est plus rapide que pour les dispositifs de l'état de la technique. De plus, ce mécanisme est particulièrement compact et permet, dans son utilisation dans un applicateur cosmétique, un débit de distribution régulier du fait de la simultanéité des deux déploiements.Thus, unlike the devices of the state of the art, the various parts of the cam mechanism according to the present disclosure are deployed simultaneously, which makes it possible to distribute the forces between the parts and to limit their wear. In addition, the deployment of the mechanism, measured for example by the axial speed of the skirt relative to the rod, is faster than for the devices of the state of the art. In addition, this mechanism is particularly compact and allows, in its use in a cosmetic applicator, a regular distribution rate due to the simultaneity of the two deployments.
Dans certains modes de réalisation, la tige, le fourreau, le manchon la jupe et le corps sont coaxiaux. Le mécanisme de came peut être un mécanisme télescopique configuré pour se déployer selon la direction axiale. Dans certains modes de réalisation, la tige, le fourreau, la jupe, le manchon et le corps sont agencés radialement les uns autour des autres, en particulier dans cet ordre.In some embodiments, the rod, the sheath, the sleeve, the skirt and the body are coaxial. The cam mechanism may be a telescopic mechanism configured to deploy in the axial direction. In some embodiments, the rod, the sleeve, the skirt, the sleeve and the body are arranged radially around each other, particularly in that order.
La tige, le fourreau, le manchon, la jupe et le corps ne sont pas nécessairement à symétrie de révolution, au moins en raison des moyens de solidarisation en rotation qu'ils peuvent présenter.The rod, the sheath, the sleeve, the skirt and the body are not necessarily symmetrical in revolution, at least because of the means of securing in rotation that they may have.
Dans certains modes de réalisation, la tige comporte un filetage engagé avec un filetage complémentaire du manchon. Au sens du présent exposé, un filetage peut désigner indifféremment un filetage mâle ou un filetage femelle, parfois appelé taraudage. Ainsi, on comprend qu'un filetage mâle ou femelle de la tige est engagé avec un filetage complémentaire femelle ou mâle, respectivement, du manchon.In some embodiments, the rod has a thread engaged with a complementary thread of the sleeve. Within the meaning of the present disclosure, a thread can designate indifferently a male thread or a female thread, sometimes called tapping. Thus, it is understood that a male or female thread of the rod is engaged with a complementary female or male thread, respectively, of the sleeve.
De manière similaire mais indépendante, dans certains modes de réalisation, la jupe comporte un filetage engagé avec un filetage complémentaire du fourreau.Similarly but independently, in certain embodiments, the skirt has a thread engaged with a complementary thread of the sleeve.
Selon une variante, une alternative aux filetages pourrait comprendre au moins une protubérance radiale, par exemple de la tige, engagée dans une fente hélicoïdale, par exemple du manchon. Ces éléments peuvent être inversés.According to a variant, an alternative to the threads could comprise at least one radial protuberance, for example of the rod, engaged in a helical slot, for example of the sleeve. These elements can be reversed.
Dans certains modes de réalisation, le manchon comprend un corps tubulaire et une paroi transversale s'étendant transversalement par rapport au corps tubulaire, ladite paroi transversale comportant ledit filetage complémentaire du manchon. Le corps tubulaire peut s'étendre dans la direction axiale, autour de l'axe. Le filetage complémentaire peut être prévu sur le pourtour externe de la paroi ou dans un orifice interne de la paroi.In certain embodiments, the sleeve comprises a tubular body and a transverse wall extending transversely with respect to the tubular body, said transverse wall comprising said complementary thread of the sleeve. The tubular body can extend in the axial direction, around the axis. The complementary thread can be provided on the outer periphery of the wall or in an internal hole in the wall.
Dans certains modes de réalisation, le fourreau est configuré pour prendre appui axialement sur la paroi transversale du manchon. Ainsi, lors du mouvement axial du manchon, au moins dans un sens, la paroi transversale exerce sur le fourreau une force qui entraîne le fourreau en coulissement dans la direction axiale.In certain embodiments, the sleeve is configured to bear axially on the transverse wall of the sleeve. Thus, during the axial movement of the sleeve, at least in one direction, the transverse wall exerts on the sleeve a force which drives the sleeve to slide in the axial direction.
Dans certains modes de réalisation, des moyens de solidarisation en rotation de la tige avec le fourreau et/ou des moyens de solidarisation de la jupe avec le manchon et/ou des moyens de solidarisation du manchon avec le corps comprennent une protubérance radiale engagée dans une fente axiale. La fente axiale peut être une rainure, une découpe ou analogue. La fente peut s'étendre sensiblement axialement. La protubérance peut être une nervure, une languette, un ergot ou analogue. La protubérance peut faire saillie radialement, en direction de la fente. Ainsi, la fente forme un guide pour le coulissement axial de la protubérance, tout en limitant sa course radiale, donc en assurant une solidarisation en rotation.In certain embodiments, means for securing the rod in rotation with the sheath and / or means for securing the skirt with the sleeve and / or means for securing the sleeve with the body comprise a radial protuberance engaged in a axial slit. The axial slot can be a groove, a cutout or the like. The slot can extend substantially axially. The protrusion can be a rib, a tongue, a lug or the like. The protrusion may project radially, in the direction of the slot. Thus, the slot forms a guide for the axial sliding of the protuberance, while limiting its radial travel, therefore ensuring a connection in rotation.
Le présent exposé concerne également un applicateur de produit liquide ou pâteux, en particulier de produit cosmétique, comprenant un réservoir apte à contenir ledit produit et un mécanisme de came tel que précédemment décrit. Le réservoir peut être formé entre la jupe du mécanisme de came et une paroi de l'applicateur comportant une ouverture pour la distribution du produit. La mise en mouvement de la jupe par rapport à la tige peut diminuer la taille du réservoir, et par suite provoquer la distribution du produit par l'ouverture.This disclosure also relates to an applicator for a liquid or pasty product, in particular a cosmetic product, comprising a reservoir capable of containing said product and a release mechanism. cam as previously described. The reservoir may be formed between the skirt of the cam mechanism and a wall of the applicator comprising an opening for dispensing the product. The movement of the skirt relative to the rod can reduce the size of the reservoir, and consequently cause the product to be dispensed through the opening.
Ainsi, dans certains modes de réalisation, l'applicateur comprend un embout applicateur muni d'une ouverture communicant avec l'intérieur du réservoir, et le mécanisme de came est logé à une extrémité de l'applicateur opposée à l'ouverture.Thus, in certain embodiments, the applicator comprises an applicator tip provided with an opening communicating with the interior of the reservoir, and the cam mechanism is housed at one end of the applicator opposite the opening.
Dans certains modes de réalisation, la jupe appartient à un piston configuré pour pousser le produit hors du réservoir.In some embodiments, the skirt is part of a piston configured to push the product out of the reservoir.
Dans certains modes de réalisation, le corps du mécanisme de came forme corps de l'applicateur définissant le réservoir. En d'autres termes, dans ces modes de réalisation, le corps de l'applicateur et le corps du mécanisme de came sont une même pièce. Alternativement, le corps du mécanisme de came peut être une pièce distincte du corps de l'applicateur ; dans ces modes de réalisation, le mécanisme de came peut être logé dans le corps de l'applicateur, le corps du mécanisme de came étant bloqué en rotation, voire aussi axialement, par rapport au corps de l'applicateur.In some embodiments, the body of the cam mechanism forms the body of the applicator defining the reservoir. In other words, in these embodiments, the body of the applicator and the body of the cam mechanism are one and the same part. Alternatively, the body of the cam mechanism may be a separate part from the body of the applicator; in these embodiments, the cam mechanism can be housed in the body of the applicator, the body of the cam mechanism being locked in rotation, or even axially, relative to the body of the applicator.
Dans certains modes de réalisation, l'applicateur comprend une base montée rotative par rapport au corps et la tige est solidaire en rotation de la base. Ainsi, la rotation de la base entraîne une rotation de la tige et le déploiement du mécanisme de came qui s'ensuit. La position axiale de la tige par rapport à la base et/ou au corps peut être fixe.In some embodiments, the applicator comprises a base rotatably mounted relative to the body and the rod is rotatably integral with the base. Thus, the rotation of the base causes a rotation of the rod and the deployment of the cam mechanism which follows. The axial position of the rod relative to the base and / or to the body can be fixed.
L'invention et ses avantages seront mieux compris à la lecture de la description détaillée qui suit, de modes de réalisation de l'invention donnés à titre d'exemples non limitatifs. Cette description se réfère aux dessins annexés, sur lesquels :
- la
figure 1 est une vue en perspective d'un applicateur selon un mode de réalisation ; - la
figure 2 est une vue en coupe longitudinale de l'applicateur de lafigure 1 , dans laquelle le mécanisme de came est entièrement déployé ; - la
figure 3 est une vue en coupe selon le plan III-III de lafigure 2 ; - la
figure 4 est une vue en perspective éclatée de certaines pièces du mécanisme selon le mode de réalisation de lafigure 2 ; - la
figure 5 est une vue analogue à lafigure 2 , dans laquelle le mécanisme de came est entièrement rétracté.
- the
figure 1 is a perspective view of an applicator according to one embodiment; - the
figure 2 is a longitudinal sectional view of the applicator of thefigure 1 , in which the cam mechanism is fully extended; - the
figure 3 is a sectional view along the plane III-III of thefigure 2 ; - the
figure 4 is an exploded perspective view of certain parts of the mechanism according to the embodiment of thefigure 2 ; - the
figure 5 is a view similar to thefigure 2 , in which the cam mechanism is fully retracted.
Dans le présent exposé, les termes supérieur, inférieur, haut, bas sont à comprendre dans un sens relatif uniquement, en référence aux dessins. Ils permettent de distinguer deux localisations essentiellement opposées, sans préjuger de l'orientation du dispositif dans l'espace. En particulier, la droite reliant un point « haut » à un point « bas » n'est pas nécessairement verticale au sens usuel du terme.In the present disclosure, the terms top, bottom, top, bottom are to be understood in a relative sense only, with reference to the drawings. They make it possible to distinguish two essentially opposite locations, without prejudging the orientation of the device in space. In particular, the straight line connecting a “high” point to a “low” point is not necessarily vertical in the usual sense of the term.
Un mécanisme de came selon un mode de réalisation et un applicateur comprenant un tel mécanisme sont illustrés sur les
Le produit est distribué sur l'embout applicateur 112 à travers une ouverture 114. L'ouverture 114 débouche sur l'embout applicateur 112, plus particulièrement sur la surface externe 113, et communique fluidiquement avec le réservoir de produit.The product is dispensed onto the
Afin de pousser le produit contenu dans le réservoir à travers l'ouverture 114, l'applicateur 100 comprend un mécanisme de came 10. Comme indiqué précédemment, le mécanisme de came 10 comprend une tige 20, un fourreau 30, un manchon 40 et une jupe 50. Sur les
Comme illustré, la tige 20 est sensiblement rectiligne et s'étend ici selon l'axe X de l'applicateur. La tige 20 est en l'occurrence une tige pleine, mais elle pourrait également être prévue creuse. La tige 20 comporte un filetage 22, en l'occurrence un filetage mâle. Le filetage 22 peut être prévu sur une périphérie externe de la tige 20. Dans le présent mode de réalisation, le filetage 22 s'étend sensiblement sur toute la longueur de la tige 20, dans la direction axiale. Toutefois, la tige 20 pourrait comprendre une partie non filetée, par exemple à son extrémité supérieure, de façon à former une butée et empêcher l'élément engagé avec le filetage 22 de s'en dégager.As illustrated, the
En outre, la tige 20 comporte au moins une fente axiale, en l'occurrence deux rainures 24 diamétralement opposées. Les rainures 24 s'étendent sensiblement axialement. Les rainures 24 sont en retrait vers l'intérieur de la tige 20. Comme il ressort des
Par ailleurs, la tige 20 peut être assemblée à un socle 26, typiquement à une de ses extrémités, par exemple son extrémité inférieure. En l'espèce, le socle 26 comprend une embase 27 en forme de disque, sensiblement circulaire, de laquelle fait saillie une bordure 28, ici sensiblement cylindrique. La bordure 28 fait saillie de l'embase 27 du même côté que la tige 20. Dans ce mode de réalisation, la tige 20 et la bordure 28 sont chacune sensiblement orthogonale à l'embase 27.Furthermore, the
Dans ce mode de réalisation, la tige 20 et le socle 26 sont faits en une seule pièce. Cependant, la tige 20 et le socle 26 pourraient former deux pièces distinctes, assemblées l'une à l'autre.In this embodiment, the
Le fourreau 30 est sensiblement cylindrique, ici à section circulaire, et plus particulièrement coaxial à la tige 20. Le fourreau 30 est, dans ce mode de réalisation, placé radialement à l'extérieur de la tige 20, c'est-à-dire radialement autour de la tige 20. Le fourreau 30 comporte un filetage 32, en l'occurrence un filetage mâle. Le filetage 32 peut être prévu sur une périphérie externe du fourreau 30. Dans le présent mode de réalisation, le filetage 32 s'étend sensiblement sur toute la longueur du fourreau 30, dans la direction axiale. Cependant, dans ce mode de réalisation, le fourreau 30 comporte, à une de ses extrémités, ici son extrémité inférieure, une partie d'appui 36. La partie d'appui 36 est ici de section externe plus grande que la section externe du filetage 32. En outre, le fourreau 30 pourrait comprendre une partie non filetée, par exemple à son extrémité opposée à la partie d'appui 36, de façon à former une butée et empêcher l'élément engagé avec le filetage 32 de s'en dégager.The
En outre, la surface radialement interne du fourreau 30 est ici une surface lisse, non-filetée, de diamètre supérieur au diamètre du filetage 22. Ainsi, la tige 20 et le fourreau 30 sont aptes à coulisser l'un par rapport à l'autre, en particulier dans la direction axiale.In addition, the radially internal surface of the
Toutefois, le fourreau 30, et plus particulièrement ladite surface radialement interne, comporte au moins une protubérance radiale, en l'occurrence deux nervures 34 diamétralement opposées. Les nervures 34 s'étendent sensiblement axialement. Les nervures 34 font saille vers l'intérieur du fourreau 30, c'est-à-dire radialement vers la tige 20. Comme illustré sur la
Le manchon 40 est ici coaxial à la tige 20 et placé, dans ce mode de réalisation, radialement à l'extérieur de la tige 20 et du fourreau 30, c'est-à-dire radialement autour de la tige 20 et du fourreau 30. Comme indiqué précédemment, le manchon 40 comprend un corps tubulaire 41 et une paroi transversale 46 s'étendant transversalement par rapport au corps tubulaire 41. Le corps tubulaire 41 est sensiblement cylindrique autour de l'axe X, de section circulaire. Le diamètre interne du corps tubulaire 41 peut être supérieur au diamètre externe de la tige 20 et du fourreau 30.The
La paroi transversale 46 s'étend sensiblement perpendiculairement par rapport au corps tubulaire 41, en l'occurrence vers l'intérieur du corps tubulaire 41. En l'espèce, la paroi transversale 46 comporte un orifice dont le pourtour est pourvu d'un filetage 42. Ledit orifice peut être formé sensiblement au centre de la paroi transversale 46, laquelle forme un anneau autour dudit orifice.The
Le filetage 42 du manchon est un filetage complémentaire au filetage 22 de la tige 20. Ainsi, le filetage 22 et le filetage complémentaire 42 sont configurés pour coopérer entre eux. Le filetage complémentaire 42 est en l'occurrence un filetage femelle. Dans le présent mode de réalisation, le filetage complémentaire 42 s'étend sensiblement sur toute l'épaisseur de la paroi transversale 46, dans la direction axiale. Le filetage 22 de la tige et le filetage complémentaire 42 du manchon forment ainsi des moyens de came, par lesquels la rotation de la tige 20 par rapport au manchon 40 provoque un mouvement axial du manchon 40 par rapport à la tige 20. En particulier, grâce au fait que le manchon 40 est bloqué en rotation et coulisse par rapport au corps 110, comme on le verra par la suite, la rotation de la tige 20 par rapport au corps 110 provoque un mouvement axial du manchon 40 par rapport au corps 110.The
En outre, le manchon 40 comporte au moins une fente axiale, en l'occurrence une découpe 44 (voir
Comme on peut le voir sur la
La jupe 50 est ici coaxiale au fourreau 30 et placée, dans ce mode de réalisation, radialement à l'extérieur de la tige 20 et du fourreau 30, c'est-à-dire radialement autour de la tige 20 et du fourreau 30, et radialement à l'intérieur du manchon 40, du moins à l'intérieur du corps tubulaire 41.The
La jupe 50 comporte un filetage 52 sur sa surface interne. Le filetage 52 de la jupe est un filetage complémentaire au filetage 32 du fourreau 30. Ainsi, le filetage 32 et le filetage complémentaire 52 sont configurés pour coopérer entre eux. Le filetage complémentaire 52 est en l'occurrence un filetage femelle. Dans le présent mode de réalisation, le filetage complémentaire 52 s'étend sensiblement sur toute la longueur de la jupe 50, dans la direction axiale. Le filetage 32 du fourreau et le filetage complémentaire 52 de la jupe forment ainsi des moyens de came, par lesquels la rotation du fourreau 30 par rapport à la jupe 50 provoque un mouvement axial de la jupe 50 par rapport au fourreau 30. En particulier, grâce au fait que la jupe 50 est bloquée en rotation et coulisse par rapport au manchon 40, comme on le verra par la suite, la rotation du fourreau 30 par rapport au manchon 40 provoque un mouvement axial de la jupe 50 par rapport au manchon 40.The
En outre, la surface radialement externe de la jupe 50 est ici une surface lisse, non-filetée, de diamètre inférieur au diamètre intérieur du manchon 40. Ainsi, le manchon 40 et la jupe 50 sont aptes à coulisser l'un par rapport à l'autre, en particulier dans la direction axiale.In addition, the radially outer surface of the
Toutefois, la jupe 50, et plus particulièrement ladite surface radialement externe, peut comporter au moins une protubérance radiale, en l'occurrence une languette 54. La languette 54 peut être prévue uniquement sur une partie inférieure de la jupe 50. La languette 54 fait saille vers l'extérieur de la jupe 50, c'est-à-dire radialement vers le manchon 40. Comme illustré sur la
Comme indiqué précédemment, à partir d'une position rétractée dans laquelle la tige 20, le fourreau 30, le manchon 40 et la jupe 50 sont axialement aussi proches que possible les uns des autres (voir
De manière simultanée, la rotation de la tige 20 par rapport au manchon 40 entraîne, via la coopération des rainures 24 et des nervures 34, une rotation correspondante du fourreau 30, tandis que la jupe 50 est solidaire en rotation du manchon 40 du fait de l'engagement de la languette 54 dans la fente 44. Ainsi, le fourreau 30 est entraîné en rotation par rapport à la jupe 50, ce qui provoque, en raison de la coopération des filetages 32, 52, un mouvement axial de la jupe 50. Le déplacement axial de la jupe 50 par rapport au fourreau 30 forme un deuxième déploiement.Simultaneously, the rotation of the
Ainsi, la structure de ce mécanisme télescopique permet le double déploiement simultané des organes du mécanisme de came 10 dans la direction axiale. Cela permet un déploiement régulier et donc une distribution mieux contrôlée du produit. De plus cela permet d'avoir un mécanisme compact et donc de pouvoir contenir plus de produit dans un volume donné.Thus, the structure of this telescopic mechanism allows the simultaneous double deployment of the members of the
Comme indiqué précédemment, le corps 110 du mécanisme de came 10 peut former le corps de l'applicateur 100. Le mécanisme de came 10 peut être prévu de préférence à l'opposé de l'ouverture 114 de distribution du produit.As indicated previously, the
Dans ce mode de réalisation, le corps 110 est en matériau transparent, par exemple en copolyester ou en polycarbonate. Afin de cacher une partie du mécanisme de came 10, le corps 110 peut être habillé d'un élément d'habillage 115, notamment opaque, s'étendant axialement, ici de manière sensiblement cylindrique. Comme on peut le voir sur la
L'élément d'habillage 115 est ici monté sur un anneau 116 solidaire du corps 110 et prend appui sur un épaulement 117 du corps 110. L'élément d'habillage 115 peut être réalisé en métal, par exemple en aluminium, ou en matériau thermoplastique éventuellement recouvert d'un revêtement métallique. L'élément d'habillage peut être fixé par encliquetage, collage, vissage, ou encore encastrement. Une frette 118, par exemple en matériau thermoplastique, peut entourer au moins partiellement le corps 110 et/ou l'élément d'habillage 115. La frette 118 peut prendre appui sur l'anneau 116 du corps 110. La frette 118 peut être prévue pour faciliter la préhension de l'applicateur 100 par l'utilisateur. La frette 118 est ici un élément esthétique qui sert également à la fixation du capot.The
L'applicateur 100 peut également comprendre une base 120 montée rotative sur le corps 110, de préférence à une extrémité du corps 110 opposée à l'embout applicateur 112, en l'occurrence une extrémité inférieure du corps 110. La base 120, ici une bague, peut être assemblée au corps 110 par des moyens connus en eux-mêmes. En l'espèce, la base 120 a pour axe de rotation l'axe X de l'applicateur 100. Dans ce mode de réalisation, la frette 118 et la base 120 sont solidaires.The
L'applicateur 100 peut également comprendre un capuchon 130 configuré pour coiffer l'embout applicateur 112 et, le cas échéant, en assurer l'étanchéité. Des moyens d'étanchéité (non représentés) peuvent être prévus à l'intérieur du capuchon 130 et/ou à l'interface entre le capuchon 130 et le corps 110, l'élément d'habillage 115 ou la frette 118, selon les cas.The
Le mécanisme de came 10 peut être monté dans l'applicateur 110 de la façon suivante : la tige 20 peut être montée solidaire en rotation de la base 120, par exemple en fixant le socle 26 à l'intérieur de la base 120, typiquement par collage, frettage, sertissage, etc. Des cannelures peuvent être prévues entre le socle 26 et la base 120 pour l'entrainement en rotation, et/ou un encliquetage peut être prévu pour le verrouillage axial.The
Le manchon 40 peut être logé dans le corps 110. Dans le présent mode de réalisation, l'applicateur présente des moyens de blocage pour bloquer le manchon 40 en rotation par rapport au corps 110. Plus précisément, le manchon 40 présente ici un ergot 48, faisant radialement saillie de sa surface extérieure, et configuré pour coopérer avec une fente axiale 111 de la surface intérieure du corps 110. Ainsi, le manchon 40 est bloqué en rotation par rapport au corps 110. Il s'ensuit que la jupe 50, bloquée en rotation par rapport au manchon 40, est également bloquée en rotation par rapport au corps 110. A l'inverse, la tige 20 et par suite le fourreau 30, solidaire en rotation de la tige 20, sont montés rotatifs par rapport au corps 110. Ainsi, il est possible d'entraîner en rotation la tige 20 par rapport au manchon 40, en faisant simplement tourner la base 120 par rapport au corps 110.The
La jupe 50 présente, dans sa partie supérieure, un élément de piston 58 avec lequel ladite jupe 50 forme un piston configuré pour pousser le produit hors du réservoir. Plus précisément, l'applicateur 100 comprend un réservoir formé dans le corps 110, entre l'embout applicateur 112 et la jupe 50, plus particulièrement l'élément de piston 58. L'élément de piston 58 obture le corps 110 transversalement à son axe X de déplacement. Pour une meilleure étanchéité, l'élément de piston 58 comprend une collerette de raclage 56, agencée radialement autour d'une partie supérieure de la jupe 50. La collerette de raclage 56 comporte une partie sensiblement tronconique et formée d'un matériau flexible, par exemple du polyéthylène, polyéthylène base densité, ou encore du polypropylène. La collerette de raclage 56 est montée en force dans le corps 110, de sorte que son extrémité libre soit rabattue sur le corps 110 par une force de rappel élastique. Cette force permet non seulement de garantir l'étanchéité du réservoir, situé ici dans la partie supérieure du corps 110 par rapport à la collerette de raclage 56, mais aussi de racler les parois du corps 110, lors de la remontée de la jupe 50, de façon à minimiser le reliquat de produit non utilisé dans le réservoir.The
A cette fin également, l'extrémité supérieure de l'élément de piston 58 peut être configurée pour épouser sensiblement, au moins en partie, la forme intérieure de l'embout applicateur 112. Ceci est facilité par le fait que, comme on l'a vu précédemment, l'élément de piston 58 soit bloqué en rotation par rapport au corps 110, ici par l'intermédiaire du manchon 40.To this end also, the upper end of the
Dans un autre mode de réalisation, l'applicateur 100 peut être un applicateur d'un produit cosmétique solide tel qu'un bâton de rouge à lèvres. L'extrémité ouverte du corps 110 pourrait être ouverte plus largement afin de permettre la sortie du bâton de rouge à lèvres. L'élément de piston 58 pourrait comprendre une coupelle ou tout autre moyen approprié permettant de maintenir le produit cosmétique solide. Dans de tels modes de réalisation, une collerette de raclage n'est pas utile.In another embodiment, the
Bien que la présente invention ait été décrite en se référant à des exemples de réalisation spécifiques, des modifications peuvent être apportées à ces exemples sans sortir de la portée générale de l'invention telle que définie par les revendications.Although the present invention has been described with reference to specific embodiments, modifications can be made. made to these examples without departing from the general scope of the invention as defined by the claims.
Par exemple, bien que l'axe du mécanisme de came 10 soit ici confondu avec l'axe X de l'applicateur 100, ces axes pourraient être distincts, parallèles entre eux ou non.For example, although the axis of the
Plus généralement, des caractéristiques individuelles des différents modes de réalisation illustrés/mentionnés peuvent être combinées dans des modes de réalisation additionnels, sans sortir du cadre de l'invention telle que définie dans les revendications annexées. Par conséquent, la description et les dessins doivent être considérés dans un sens illustratif plutôt que restrictif.More generally, individual characteristics of the different embodiments illustrated / mentioned can be combined in additional embodiments, without departing from the scope of the invention as defined in the appended claims. Therefore, the description and the drawings should be taken in an illustrative rather than a restrictive sense.
Claims (10)
- A cam mechanism (10), in particular for a cosmetic product applicator (100), comprising a rod (20), a sheath (30), a sleeve (40), a skirt (50) and a body (110), wherein the sheath (30) is secured in rotation to the rod (20) and able to slide relative to the rod (20), the skirt (50) is secured in rotation to the sleeve (40) and able to slide relative to the sleeve (40), the sleeve (40) is secured in rotation to the body (110) and able to slide relative to the body (110), the sheath (30) cooperating with the skirt (50) so that the rotation of the sheath (30) relative to the skirt (50) causes an axial movement of the skirt (50) relative to the sheath (30), the sleeve (40) cooperating with the rod (20) and the sheath (30) so that the rotation of the rod (20) relative to the sleeve (40) causes an axial movement of the sleeve (40) relative to the rod (20), the axial movement of the sleeve (40) slidably driving, at least in one direction (D1), the sheath (30) relative to the rod (20).
- The cam mechanism according to claim 1, wherein the rod (20), the sheath (30), the sleeve (40), the skirt (50) and the body (110) are coaxial.
- The cam mechanism according to claim 1 or 2, wherein the rod (20) includes a thread (22) engaged with a complementary thread (42) of the sleeve (40).
- The cam mechanism according to claim 3, wherein the sleeve (40) comprises a tubular body (41) and a transverse wall (46) extending transversely relative to the tubular body (41), said transverse wall (46) including said complementary thread (42).
- The cam mechanism according to claim 4, wherein the sheath (30) is configured to bear axially on the transverse wall (46) of the sleeve (40).
- The cam mechanism according to any one of claims 1 to 5, wherein the skirt (50) includes a thread (52) engaged with a complementary thread (32) of the sheath (30).
- The cam mechanism according to any one of claims 1 to 6, wherein means for securing in rotation the rod (20) to the sheath (30) and/or means for securing the skirt (50) to the sleeve (40) and/or means for securing the sleeve (40) to the body (110) comprise a radial protrusion (34, 54) engaged in an axial slot (24, 44).
- A liquid or pasty product applicator (100), in particular a cosmetic product applicator, comprising a reservoir able to contain said product and a cam mechanism (10) according to any one of claims 1 to 7.
- The applicator according to claim 8, wherein the skirt (50) belongs to a piston configured to push the product out of the reservoir.
- The applicator according to claim 8 or 9, the body (110) of the cam mechanism (10) forming the body of the applicator (100) defining the reservoir.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1756881A FR3069140B1 (en) | 2017-07-20 | 2017-07-20 | CAM MECHANISM, ESPECIALLY FOR A COSMETIC PRODUCT APPLICATOR |
PCT/FR2018/051860 WO2019016489A1 (en) | 2017-07-20 | 2018-07-20 | Cam mechanism, in particular for a cosmetic product applicator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3654800A1 EP3654800A1 (en) | 2020-05-27 |
EP3654800B1 true EP3654800B1 (en) | 2021-04-07 |
Family
ID=60302219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18752595.1A Active EP3654800B1 (en) | 2017-07-20 | 2018-07-20 | Cam mechanism, in particular for a cosmetic product applicator |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3654800B1 (en) |
CN (1) | CN110891457B (en) |
FR (1) | FR3069140B1 (en) |
WO (1) | WO2019016489A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1273245A1 (en) * | 2001-07-03 | 2003-01-08 | L'oreal | Device for storing and dispensing a product, particularly a liquid product to be applied on the lips |
FR2922532A1 (en) * | 2007-10-22 | 2009-04-24 | Lir France Soc Par Actions Sim | Liquid, creamy, semi-solid or solid product e.g. lip rouge, dispenser, has main threaded screw connected to mobile bottom forming piston, and driven via operating wheel by intermediate screws mobile in rotation and translation |
FR3021851A1 (en) * | 2014-06-10 | 2015-12-11 | Axilone Plastique | CASE SPECIALLY INTENDED TO CONTAIN A STICK SUCH AS A LIP RED GRAPE AND PRODUCT COMPRISING A POULTRY PACKED IN SUCH A CASE |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR928233A (en) | 1946-05-17 | 1947-11-21 | Care product for leathers and similar bodies | |
US2546195A (en) * | 1948-11-16 | 1951-03-27 | Chase Brass & Copper Co | Lipstick container |
JP2736039B2 (en) * | 1994-08-25 | 1998-04-02 | 株式会社トキワ | Cosmetic dispensing container |
JP2001321224A (en) * | 2000-05-18 | 2001-11-20 | Suzuno Kasei Kk | Cartridge holder for pulling out stick-shaped cosmetic material |
JP4773784B2 (en) * | 2005-09-15 | 2011-09-14 | 株式会社 資生堂 | Stick cosmetic cartridge |
EP1769698A1 (en) * | 2005-09-30 | 2007-04-04 | OEKAMETALL OEHLHORN GmbH & Co. KG | Cosmetic application container, especial lip pomade, preferably in stick form |
ITMI20061758A1 (en) * | 2006-09-15 | 2008-03-16 | Brivaplast Srl | CASE WITH MECHANICAL EXTRACTION FOR PASTOUS PRODUCTS IN THE FORM OF STICK |
US20160113375A1 (en) * | 2014-10-24 | 2016-04-28 | HCT Group Holdings Limited | Telescopic Cosmetic Apparatus |
FR3040127B1 (en) * | 2015-08-18 | 2018-10-26 | Albea Services | RECEPTACLE FOR COSMETIC PRODUCT WITH TELESCOPIC DISPLACEMENT MEANS |
CN206063507U (en) * | 2016-07-21 | 2017-04-05 | 翁建森 | A kind of automated injection device with regulating dosage |
-
2017
- 2017-07-20 FR FR1756881A patent/FR3069140B1/en active Active
-
2018
- 2018-07-20 WO PCT/FR2018/051860 patent/WO2019016489A1/en unknown
- 2018-07-20 EP EP18752595.1A patent/EP3654800B1/en active Active
- 2018-07-20 CN CN201880047464.4A patent/CN110891457B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1273245A1 (en) * | 2001-07-03 | 2003-01-08 | L'oreal | Device for storing and dispensing a product, particularly a liquid product to be applied on the lips |
FR2922532A1 (en) * | 2007-10-22 | 2009-04-24 | Lir France Soc Par Actions Sim | Liquid, creamy, semi-solid or solid product e.g. lip rouge, dispenser, has main threaded screw connected to mobile bottom forming piston, and driven via operating wheel by intermediate screws mobile in rotation and translation |
FR3021851A1 (en) * | 2014-06-10 | 2015-12-11 | Axilone Plastique | CASE SPECIALLY INTENDED TO CONTAIN A STICK SUCH AS A LIP RED GRAPE AND PRODUCT COMPRISING A POULTRY PACKED IN SUCH A CASE |
Also Published As
Publication number | Publication date |
---|---|
FR3069140B1 (en) | 2019-08-23 |
CN110891457B (en) | 2022-02-25 |
EP3654800A1 (en) | 2020-05-27 |
WO2019016489A1 (en) | 2019-01-24 |
CN110891457A (en) | 2020-03-17 |
FR3069140A1 (en) | 2019-01-25 |
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