EP3687703B1 - Dispensing and application head - Google Patents

Dispensing and application head Download PDF

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Publication number
EP3687703B1
EP3687703B1 EP17794359.4A EP17794359A EP3687703B1 EP 3687703 B1 EP3687703 B1 EP 3687703B1 EP 17794359 A EP17794359 A EP 17794359A EP 3687703 B1 EP3687703 B1 EP 3687703B1
Authority
EP
European Patent Office
Prior art keywords
pad
dispenser
assembly core
core
head according
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
Application number
EP17794359.4A
Other languages
German (de)
French (fr)
Other versions
EP3687703A1 (en
Inventor
Emmanuel PEREZ
Francis Moreau
Benoît BRISEMUR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar France SAS
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Aptar France SAS
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Publication date
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Publication of EP3687703A1 publication Critical patent/EP3687703A1/en
Application granted granted Critical
Publication of EP3687703B1 publication Critical patent/EP3687703B1/en
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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
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0035—Pen-like sprayers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0089—Dispensing tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0089—Dispensing tubes
    • B05B11/0091—Dispensing tubes movable, e.g. articulated on the sprayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/10—Hand tools for removing partially or for spreading or redistributing applied liquids or other fluent materials, e.g. colour touchers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1032—Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
    • B65D83/285—Nozzles, nozzle fittings or accessories specially adapted therefor for applying the contents, e.g. brushes, rollers, pads, spoons, razors, scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
    • B65D83/30—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods

Definitions

  • the present invention relates to a dispensing and application head intended to be associated with a dispensing unit, such as a pump, a valve, a flexible tube, etc.
  • the head includes a connecting stub intended to be connected to the dispensing unit, a mounting core connected to the connecting stub, and a fluid application pad intended to come into contact with a target surface, such as the skin, to apply the fluid to the target surface.
  • the application pad is mounted on the mounting core.
  • the head also defines a distribution channel which passes through the connection stub and the mounting core and which defines a distribution orifice.
  • the present invention also defines a fluid product dispenser comprising such a dispensing and application head.
  • the preferred fields of application of the present invention are those of cosmetics, pharmacy or even perfumery.
  • the aim of the present invention is to remedy the aforementioned drawbacks of the prior art by defining a distribution and application head whose architecture facilitates both the formation of the distribution channel and the design of the application pad, without complicating the operation of mounting the pad on the core.
  • the distribution channel comprises an outlet section which is formed jointly by the mounting core and the fluid product application pad.
  • the outlet section runs along both an outer edge of the pad and an outer edge of the core.
  • the outlet section comprises opposite internal walls which are respectively formed by the mounting core and the fluid application pad.
  • the output section is formed between the core and the pad. It is only carried out when the pad is mounted on the core. Thus, a simple space between the core and the pad is sufficient to form the outlet section.
  • the shoe may be in the form of a solid piece which is not crossed by any passage. Its surface treatment is greatly facilitated, since there is no place difficult to access, as is the case with a through passage.
  • the formation of the distribution channel is also simpler, since it suffices to follow the pad, and no longer to go around it, as is the case in the document US9498042 .
  • the dispensing orifice is formed jointly by the mounting core and the fluid product application pad.
  • the outlet section opens between the core and the pad.
  • the dispensing orifice extends over the outer periphery of the fluid product application pad.
  • the dispensing orifice may be annular and thus extend all around the fluid product application pad.
  • the mounting core and the fluid product application pad can come into sealed contact at the level of the dispensing orifice so as to form a self-sealing slot which opens with the fluid product under pressure.
  • the core can be made with a flexible material which will deform under the pressure exerted by the fluid. It is also conceivable to make an application pad with a flexible material.
  • the connecting heel and the mounting core define a longitudinal axis X
  • the distribution channel comprises an axial section which passes through the connecting heel and the mounting core extending along of the longitudinal axis X.
  • the axial section can both be centered and rectilinear, which facilitates its formation, in particular by molding using a simple straight spindle.
  • the axial section then connects downstream to the outlet section, formed between the core and the pad.
  • the mounting core can form a receiving housing, advantageously by snap-fastening, for the fluid product application pad.
  • the fluid product application pad may have a symmetry of revolution. No orientation of the pad is thus necessary when it is mounted on the core.
  • connection heel and the mounting core define a longitudinal axis X, the distribution channel extending along the longitudinal axis X of the connection heel to the distribution orifice.
  • the head defines a longitudinal axis X which extends at least through the connecting heel and the mounting core, the application pad being attached and mechanically mounted on the mounting core along a mounting axis which s' extends transversely to the main axis.
  • the application pad is made of a heat-transfer material, such as metal or ceramic, advantageously having a density greater than 2, to impart a feeling of cold on contact with the skin. Materials with a density of 4 to 8 are the most effective.
  • the mounting core is connected to the connecting heel via a flexible connecting section which also passes through the distribution channel.
  • This flexible section can also be considered to be formed by the heel or the core, or both together.
  • This flexible section can very simply be in the form of a constriction, capable of imparting a capacity for deformation.
  • the mounting core and the connecting heel are made in one piece and are advantageously traversed only by the distribution channel. A realization by bi-injection is possible.
  • the spirit of the invention lies in the fact of making part of the distribution channel, and at least the distribution orifice, between the core and the pad, so as to facilitate the production and the surface treatment of the pad and to facilitate the formation of the distribution channel through the heel and core.
  • the pad provides a thermal effect (hot or cold)
  • the fluid is brought to temperature, due to the fact that the outlet section runs along the pad.
  • the dispenser essentially comprises three constituent elements, namely a fluid reservoir 1, a unit dispenser 2, which is here a side-actuated pump, and a dispensing head 3 consisting of a nozzle 4 associated with an application pad 5.
  • the fluid reservoir 1 can be of any kind (with or without air intake), of any shape and made of various suitable materials (flexible or rigid).
  • a particular reservoir as shown in the figure 1A , comprising a cylindrical sliding barrel 10 associated with a follower piston 12 which moves in the barrel 10 as the fluid product has been extracted therefrom.
  • This type of reservoir allows the fluid product to be kept out of contact with the outside air.
  • the follower piston 12 is disposed at one end of the barrel 10 when the reservoir is filled, which is opposite the other end of the barrel forming a neck 11 defining an opening making the interior of the reservoir communicate with the exterior.
  • This is a completely conventional design for a reservoir of the follower piston type, but other types of reservoir can be implemented without thereby departing from the scope of the invention.
  • the pump 2 is a side-actuated pump comprising a pump body 20 defining at its lower end a fluid inlet 21 in communication with the reservoir 1.
  • the pump 2 comprises an inlet valve 22 and an outlet valve 23 between which is formed a pump chamber 24 comprising a lateral actuating wall 25 making it possible to reduce the internal volume of the chamber 24.
  • the outlet 26 of the pump 2 is fixed and located in the axis of the pump. and the distributor.
  • Other types of pump can also be used in the context of the invention. You can even use a valve or a flexible tube instead of the pump.
  • the head 3 is mounted on the outlet 26 of the pump 2, so that it does not undergo any movement when the pump 2 is actuated by the side pusher 25.
  • the dispensing head 3 comprises a nozzle 4 associated with an application pad 5.
  • the end piece 4 has a major longitudinal axis X and is advantageously produced as a single piece. It includes a connecting heel 4t, a connecting section 4l and a mounting core 4n for the application pad 5.
  • the connecting section 4l is optional or can be considered as an integral part of the heel 4t and / or of the core 4n.
  • This connecting section 41 can be rigid or deformable, in particular because it forms a constriction between the heel and the core. When it is deformable, this makes it possible to give a certain degree of freedom of movement to the pad 5.
  • the connecting heel 4t forms a connecting sleeve 41 which is engaged by force or by snapping into the upper part of the pump 2 which defines exit 26.
  • the end piece 4 is made of plastic (PE or PP for example), while the application pad 5 is advantageously made of a hard or rigid heat-transfer material, such as metal, ceramic, a mineral material, etc. , capable of imparting a feeling of cold on contact with the skin.
  • part 5 has a large wall thickness to increase its thermal inertia.
  • the density of the heat-transfer material is greater than 2 and preferably between 4 and 8. It is also possible to envisage using a pad 5 made of a flexible material, such as a filled elastomer.
  • a non-heat transfer pad for example made of PE or PP, can also be used.
  • the mounting core 4n forms a receiving housing L in which the application pad 5 is engaged or embedded.
  • the housing L comprises a flexible annular lip 43 at its entrance, as well as a fixing chamber 44 at its bottom. Between the chamber 44 and the lip 43, the housing defines a frustoconical wall 42 having a solid angle of the order of 90 °, or slightly more, for questions of ease of release.
  • the application pad 5 advantageously has a symmetry of revolution and a shape similar to a top. More precisely, the pad 5 comprises an application surface 51, which can be flat or convex (convex). This application surface has the shape of a domed disc or a flattened dome.
  • the pad also comprises a frustoconical wall 52 of similar or identical shape to that 42 of the housing L. Between the application surface 51 and the frustoconical wall 52, the pad forms a substantially cylindrical edge 53 against which rests the flexible lip 43 of so as to create a sealed ring contact.
  • the pad 5 comprises a fixing needle 54 which is forcibly engaged, glued, welded or snapped into the fixing chamber 44 of the housing L.
  • the distribution and application head 3 also comprises an internal distribution duct which allows the fluid product to be conveyed from the outlet 26 to a distribution orifice 50, which is here formed at the level of the sealed contact between the lip. 43 and the edge 53.
  • This distribution orifice 50 extends all around the pad 5 and therefore has an annular shape. It behaves like a self-sealing slot which is closed at rest and which opens to create an outlet passage under the pressure exerted by the fluid.
  • the distribution orifice 50 forms the outlet of the distribution channel C.
  • the distribution channel Upstream of the distribution orifice 50, the distribution channel comprises an outlet section Cs formed by the space between the two opposite frustoconical walls 42 and 52.
  • the distribution channel comprises an axial section Ca which extends through the nozzle 3, advantageously in a centered and rectilinear manner.
  • the axial section Ca opens into the housing L at the level of the frustoconical wall 42.
  • outlet section Cs as well as the dispensing orifice 50, are formed jointly by the mounting core 4n and the pad 5.
  • the outlet section Cs comprises opposite internal walls which are respectively formed. by the mounting core 4n and the application pad 5.
  • the dispensing orifice 50 constitutes the ultimate or terminal part of the outlet section Cs.
  • the nozzle 4 is of a very simple design with the axial section Ca centered and straight and the housing L widely open and well oriented to ensure easy demolding.
  • the shoe 5 is completely symmetrical in revolution and has no through passage. Then, the outlet section Cs extends over a large area of the pad 5, so that the fluid can quickly take the temperature of the pad.
  • the flexible lip 43 acts as an outlet shutter, allowing better conservation of the fluid in the head 3.
  • the dispensing orifice would then be formed by a permanently open annular slot. It is also possible to provide a rigid lip which is interrupted locally to form one or more distribution orifice (s).
  • the outlet section Cs is formed between frustoconical walls 42 and 52: other shapes can be provided for the opposite walls, insofar as they define between them a space which leads from the axial section Ca to the distribution orifice.
  • the one-piece end piece 4a comprises a connecting heel 4t and a connecting section 4l which may be identical or similar to those of the first variant of figures 1A to 3B .
  • the mounting core 4n is different, in that it forms a first portion of extended application surface 41a which is delimited in its upper part by a profiled edge 46, which has a notch 46a, forming part of an orifice. distribution 50a.
  • the core 4n comprises a mounting stud 45 for the application pad 5a. This stud 45, as well as the extended application surface portion 41a, has an inclined orientation with respect to the longitudinal axis X of the nozzle 3a.
  • the application pad 5a in this embodiment, is in the form of a rounded cap or cap which internally defines a mounting housing 55 adapted to receive the mounting stud 45.
  • the pad 5a defines a second portion of extended application surface 51a which is delimited in its lower part by a complementary profiled edge 56 which is complementary to the profiled edge 46 of the core 4n, except at the level of the notch 46a, where the complementary profiled edge 56 is detached at 56a from the notch 46a to form another part of a dispensing orifice 50a.
  • the dispensing orifice 50a is formed jointly by the core 4n and the pad 5a, since the pad 5a is attached to the core 4n by a sliding movement along a mounting axis Z which is oriented in the same direction. transverse to the longitudinal axis X.
  • the end piece 3a is crossed by a distribution channel Caa (shown in dotted lines on the figure 4A ), which is both centered on the X axis and straight from end to end, so that the dispensing orifice 50a is located on the X axis. Moreover, this dispensing orifice 50a can be considered as the ultimate exit section of the Caa distribution channel.
  • This head 3a is formed jointly by the core 4n and the pad 5a, substantially in equal parts.
  • the edges 46 and 56 meet so as to create a surface continuity.
  • the pad 5a completes the core 4n, or vice versa. Together they form a kind of rounded pebble with no sharp edges.
  • the one-piece end piece 4b comprises a connecting heel 4t and a connecting section 4l which may be identical or similar to those of the first variant and of the embodiment.
  • the mounting core 4n comprises a mounting stud 45b for the application pad 5b, as well as a lower flexible lip 47 which comes into sealing contact with a lower edge of the pad 5b, thus forming a self-joining slot, as in the first variant.
  • the application pad 5b in this second variant not forming part of the claimed invention, is also in the form of a rounded cap or cap which internally defines a mounting housing 55b adapted to receive the mounting stud 45b. .
  • the pad 5b and the core 4n have an inclined orientation with respect to the longitudinal axis of the end piece 4b.
  • the pad 5a is attached to the core 4n by a sliding movement along a mounting axis which is oriented transversely with respect to the longitudinal axis X.
  • the end piece 4b is crossed by a section of the distribution channel Cab which is both centered on the X axis and rectilinear.
  • This Cab section opens downstream into an outlet section Csb, which is formed jointly by the core 4n and an internal face of the pad 5b.
  • This section Csb extends downward to the lower lip 47, which rests in flexible tight support on the pad 5b.
  • the figures 6A and 6B show an alternative embodiment of figures 5A and 5B .
  • the end piece 3c and the pad 5c can be identical or similar to those of figures 5A and 5B , except that the core 4n no longer forms a flexible lip 47 resting tightly on the pad 5b, but a rigid edge 47c disposed away from the pad 5c, so as to form between them a distribution orifice 50c in the form of a elongated curved slit.
  • the figure 7 shows an alternative embodiment of figures 6A and 6B , which is characterized in that the dispensing orifice 50d is formed by a local depression of the pad 5d, which is out of contact with the core.
  • At least part of the distribution channel is formed jointly by the mounting core and the applicator pad, this channel part being able to itself limit to the single dispensing orifice, as in the embodiment of figures 4A and 4B .
  • the distribution channel never passes through the applicator pad, but runs along it. It is easier to treat it pad applying an inert coating, which is necessary, especially when made of Zamac ®. Since all surfaces of the pad are easily accessible external surfaces, the surface treatment can be complete and uniform.
  • the distribution channel is rectilinear and axially centered at the level of the nozzle.
  • the dispensing orifice opens out at an outer periphery of the applicator pad. It can be considered as the end part of the output section.
  • the dispensing orifice is located on the longitudinal axis of the head, as described in the embodiment of figures 4A and 4B .
  • the dispensing orifice can be punctual, as in the embodiment of figures 4A, 4B in the variant of figure 7 , lying open, as in the variant of figures 6A and 6B , elongated closed, as in the variant of figures 5A and 5B , or even open or closed annular, as in the variant of figures 1A and 3B .
  • the connecting heel is connected directly or indirectly to the core of Assembly.
  • the connecting section is rigid or flexible.
  • the tip is preferably one-piece and one-material, but multi-material designs by assembly or bi-injection are also possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

La présente invention concerne une tête de distribution et d'application destinée à être associée à une unité de distribution, telle qu'une pompe, une valve, un tube souple, etc. La tête comprend un talon de raccordement destiné à être raccordé à l'unité de distribution, un noyau de montage raccordé au talon de raccordement, et un patin d'application de produit fluide destinée à venir en contact d'une surface cible, telle que la peau, pour appliquer le produit fluide sur la surface cible. Le patin d'application est monté sur le noyau de montage. La tête définit également un canal de distribution qui traverse le talon de raccordement et le noyau de montage et qui définit un orifice de distribution. La présente invention définit également un distributeur de produit fluide comprenant une telle tête de distribution et d'application. Les domaines d'application privilégiés de la présente invention sont ceux de la cosmétique, de la pharmacie ou encore de la parfumerie.The present invention relates to a dispensing and application head intended to be associated with a dispensing unit, such as a pump, a valve, a flexible tube, etc. The head includes a connecting stub intended to be connected to the dispensing unit, a mounting core connected to the connecting stub, and a fluid application pad intended to come into contact with a target surface, such as the skin, to apply the fluid to the target surface. The application pad is mounted on the mounting core. The head also defines a distribution channel which passes through the connection stub and the mounting core and which defines a distribution orifice. The present invention also defines a fluid product dispenser comprising such a dispensing and application head. The preferred fields of application of the present invention are those of cosmetics, pharmacy or even perfumery.

Dans l'art antérieur, on connaît déjà le document US7883287 qui décrit un patin d'application monté sur un noyau de montage qui est raccordé à un talon de raccordement monté sur un réservoir de produit fluide. Le noyau et le talon sont traversés par un canal de distribution de produit fluide qui débouche au niveau d'un orifice de distributeur formé au niveau du patin. Afin d'éviter tout contact entre le produit fluide et le patin au niveau du canal de distribution, le noyau comprend un insert plastique qui traverse le patin et qui définit le canal de distribution.In the prior art, we already know the document US7883287 which describes an application pad mounted on a mounting core which is connected to a connecting heel mounted on a fluid reservoir. The core and the heel are crossed by a fluid product distribution channel which opens out at a distributor orifice formed at the level of the pad. In order to avoid any contact between the fluid product and the pad at the level of the distribution channel, the core comprises a plastic insert which passes through the pad and which defines the distribution channel.

Dans l'art antérieur, on connaît aussi le document US9277798 qui décrit un patin en Zamac® qui est traversé par un canal de distribution en produit fluide. Le patin présente une épaisseur minimale au niveau du canal, afin de faciliter le traitement de surface du patin.In the prior art, the document is also known US9277798 which describes a Zamac ® pad which is crossed by a fluid distribution channel. The pad has a minimum thickness at the channel, in order to facilitate the surface treatment of the pad.

De ces deux documents de l'art antérieur, on peut constater qu'il est compliqué de faire passer le canal de distribution à travers le patin d'application.From these two documents of the prior art, it can be seen that it is complicated to pass the distribution channel through the application pad.

Dans l'art antérieur, on connaît également le document US9498042 qui décrit une tête de distribution et d'application comprenant un noyau de montage et un patin d'application monté sur le noyau. Un canal de distribution de produit fluide traverse le noyau et débouche au niveau d'un orifice de distributeur formé au niveau du noyau, en éloignement du patin.In the prior art, the document is also known US9498042 which describes a dispensing and application head comprising a mounting core and an application pad mounted on the core. A fluid product distribution channel passes through the core and opens out at a distributor orifice formed at the level of the core, away from the pad.

De ce document de l'art antérieur, on peut constater qu'il est également compliqué de faire passer le canal de distribution à côté du patin d'application. En effet, il faut décaler ou dévoyer le canal de distribution pour éviter le patin d'application.From this document of the prior art, it can be seen that it is also complicated to make the distribution channel pass next to the application pad. Indeed, it is necessary to shift or deflect the distribution channel to avoid the application pad.

Dans l'art antérieur, on connaît également le document FR2852933 A1 .In the prior art, the document is also known FR2852933 A1 .

Le but de la présente invention est de remédier aux inconvénients précités de l'art antérieur en définissant une tête de distribution et d'application dont l'architecture facilite à la fois la formation du canal de distribution et la conception du patin d'application, sans pour autant compliquer l'opération de montage du patin sur le noyau.The aim of the present invention is to remedy the aforementioned drawbacks of the prior art by defining a distribution and application head whose architecture facilitates both the formation of the distribution channel and the design of the application pad, without complicating the operation of mounting the pad on the core.

Pour ce faire, la présente invention propose que le canal de distribution comprenne un tronçon de sortie qui est formé conjointement par le noyau de montage et le patin d'application de produit fluide. Ainsi, le tronçon de sortie longe à la fois un bord externe du patin et un bord externe du noyau. On peut également dire que le tronçon de sortie comprend des parois internes opposées qui sont respectivement formées par le noyau de montage et le patin d'application de produit fluide. Le tronçon de sortie est formé entre le noyau et le patin. Il n'est réalisé que lorsque le patin est monté sur le noyau. Ainsi, un simple espace entre le noyau et le patin suffit à former le tronçon de sortie. De ce fait, le patin peut se présenter sous la forme d'une pièce massive qui n'est traversée par aucun passage. Son traitement de surface s'en trouve grandement facilité, puisqu'il n'y a aucun endroit difficile d'accès, comme c'est le cas avec un passage traversant. Au niveau du noyau de montage, la formation du canal de distribution est également plus simple, puisqu'il suffit de longer le patin, et non plus de le contourner, comme c'est le cas dans le document US9498042 .To do this, the present invention proposes that the distribution channel comprises an outlet section which is formed jointly by the mounting core and the fluid product application pad. Thus, the outlet section runs along both an outer edge of the pad and an outer edge of the core. It can also be said that the outlet section comprises opposite internal walls which are respectively formed by the mounting core and the fluid application pad. The output section is formed between the core and the pad. It is only carried out when the pad is mounted on the core. Thus, a simple space between the core and the pad is sufficient to form the outlet section. As a result, the shoe may be in the form of a solid piece which is not crossed by any passage. Its surface treatment is greatly facilitated, since there is no place difficult to access, as is the case with a through passage. At the level of the assembly core, the formation of the distribution channel is also simpler, since it suffices to follow the pad, and no longer to go around it, as is the case in the document US9498042 .

Selon une caractéristique avantageuse, l'orifice de distribution est formé conjointement par le noyau de montage et le patin d'application de produit fluide. Ainsi, le tronçon de sortie débouche entre le noyau et le patin.According to an advantageous characteristic, the dispensing orifice is formed jointly by the mounting core and the fluid product application pad. Thus, the outlet section opens between the core and the pad.

Selon un mode de réalisation avantageux, l'orifice de distribution s'étend sur la périphérie externe du patin d'application de produit fluide. L'orifice de distribution peut être annulaire et ainsi s'étendre tout autour du patin d'application de produit fluide. Le noyau de montage et le patin d'application de produit fluide peuvent venir en contact étanche au niveau de l'orifice de distribution de manière à former une fente auto-jointante qui s'ouvre avec le produit fluide sous pression. Dans ce cas, le noyau peut être réalisé avec un matière souple qui va se déformer sous la pression exercée par le produit fluide. Il est également envisageable de réaliser un patin d'application avec un matériau souple.According to an advantageous embodiment, the dispensing orifice extends over the outer periphery of the fluid product application pad. The dispensing orifice may be annular and thus extend all around the fluid product application pad. The mounting core and the fluid product application pad can come into sealed contact at the level of the dispensing orifice so as to form a self-sealing slot which opens with the fluid product under pressure. In this case, the core can be made with a flexible material which will deform under the pressure exerted by the fluid. It is also conceivable to make an application pad with a flexible material.

Selon un autre aspect intéressant de l'invention, le talon de raccordement et le noyau de montage définissent un axe longitudinal X, le canal de distribution comprend un tronçon axial qui traverse le talon de raccordement et le noyau de montage en s'étendant le long de l'axe longitudinal X. Ainsi, le tronçon axial peut à la fois être centré et rectiligne, ce qui facilite sa formation, notamment par moulage à l'aide d'une simple broche droite. Le tronçon axial se raccorde ensuite en aval au tronçon de sortie, formé entre le noyau et le patin.According to another interesting aspect of the invention, the connecting heel and the mounting core define a longitudinal axis X, the distribution channel comprises an axial section which passes through the connecting heel and the mounting core extending along of the longitudinal axis X. Thus, the axial section can both be centered and rectilinear, which facilitates its formation, in particular by molding using a simple straight spindle. The axial section then connects downstream to the outlet section, formed between the core and the pad.

Selon un mode de réalisation pratique, le noyau de montage peut former un logement de réception, avantageusement par encliquetage, pour le patin d'application de produit fluide. Avantageusement, le patin d'application de produit fluide peut présenter une symétrie de révolution. Aucune orientation du patin n'est ainsi nécessaire lors de son montage sur le noyau.According to a practical embodiment, the mounting core can form a receiving housing, advantageously by snap-fastening, for the fluid product application pad. Advantageously, the fluid product application pad may have a symmetry of revolution. No orientation of the pad is thus necessary when it is mounted on the core.

Selon l'invention revendiquée, le talon de raccordement et le noyau de montage définissent un axe longitudinal X, le canal de distribution s'étendant le long de l'axe longitudinal X du talon de raccordement jusqu'à l'orifice de distribution.According to the claimed invention, the connection heel and the mounting core define a longitudinal axis X, the distribution channel extending along the longitudinal axis X of the connection heel to the distribution orifice.

Avantageusement, la tête définit un axe longitudinal X qui s'étend au moins à travers le talon de raccordement et le noyau de montage, le patin d'application étant rapporté et monté mécaniquement sur le noyau de montage selon un axe de montage qui s'étend transversalement par rapport à l'axe principal.Advantageously, the head defines a longitudinal axis X which extends at least through the connecting heel and the mounting core, the application pad being attached and mechanically mounted on the mounting core along a mounting axis which s' extends transversely to the main axis.

Selon un mode de réalisation préféré, le patin d'application est réalisé en un matériau caloporteur, tel que du métal ou de la céramique, ayant avantageusement une densité supérieure à 2, pour conférer une sensation de froid au contact de la peau. Les matériaux ayant une densité de 4 à 8 sont les plus efficaces.According to a preferred embodiment, the application pad is made of a heat-transfer material, such as metal or ceramic, advantageously having a density greater than 2, to impart a feeling of cold on contact with the skin. Materials with a density of 4 to 8 are the most effective.

Selon un mode de réalisation pratique, le noyau de montage est raccordé au talon de raccordement par l'intermédiaire d'une section de liaison souple qui est également traversée par le canal de distribution. On peut aussi considérer que cette section souple est formée par le talon ou le noyau, ou les deux conjointement. Cette section souple peut se présenter très simplement sous la forme d'un rétrécissement, apte à conférer une capacité de déformation.According to a practical embodiment, the mounting core is connected to the connecting heel via a flexible connecting section which also passes through the distribution channel. This flexible section can also be considered to be formed by the heel or the core, or both together. This flexible section can very simply be in the form of a constriction, capable of imparting a capacity for deformation.

Avantageusement, le noyau de montage et le talon de raccordement sont réalisés de manière monobloc et sont avantageusement traversés uniquement par le canal de distribution. Une réalisation par bi-injection est possible.Advantageously, the mounting core and the connecting heel are made in one piece and are advantageously traversed only by the distribution channel. A realization by bi-injection is possible.

L'esprit de l'invention réside dans le fait de réaliser une partie du canal de distribution, et au moins l'orifice de distribution, entre le noyau et le patin, de manière faciliter la réalisation et le traitement de surface du patin et à faciliter la formation du canal de distribution à travers le talon et le noyau. Lorsque le patin procure un effet thermique (chaud ou froid), le produit fluide est mis en température, du fait que le tronçon de sortie longe le patin.The spirit of the invention lies in the fact of making part of the distribution channel, and at least the distribution orifice, between the core and the pad, so as to facilitate the production and the surface treatment of the pad and to facilitate the formation of the distribution channel through the heel and core. When the pad provides a thermal effect (hot or cold), the fluid is brought to temperature, due to the fact that the outlet section runs along the pad.

L'invention sera maintenant plus amplement décrite en référence aux dessins joints, donnant à titre d'exemple non limitatif un mode de réalisation de l'invention.The invention will now be described more fully with reference to the accompanying drawings, giving by way of non-limiting example one embodiment of the invention.

Sur les figures :

  • La figure 1A est une vue en section transversale verticale schématique à travers un distributeur selon une première variante ne faisant pas partie de l'invention revendiquée,
  • La figure 1B est une vue de face du distributeur de la figure 1A,
  • La figure 2A est une vue en section transversale verticale à travers de la tête du distributeur des figures 1A et 1B,
  • La figure 2B est une vue de côté de la tête de la figure 2A,
  • La figure 2C est une vue en perspective de la tête des figures 2A et 2B,
  • La figure 3A est une vue en coupe transversale verticale éclatée de la tête des figures 2A, 2B et 2C,
  • La figure 3B est une vue en en perspective éclatée de la tête de la figure 3A,
  • La figure 4A est une vue en perspective d'une tête de distribution selon un mode de réalisation de l'invention,
  • La figure 4B est une vue en en perspective éclatée de la tête de la figure 4A,
  • La figure 5A est une vue en coupe transversale verticale à travers une tête de distribution et d'application selon une seconde variante ne faisant pas partie de l'invention revendiquée,
  • La figure 5B est une vue en en perspective simplifiée de la tête de la figure 5A,
  • La figure 6A est une vue en coupe transversale verticale à travers une tête de distribution et d'application selon une troisième variante ne faisant pas partie de l'invention revendiquée,
  • La figure 6B est une vue en perspective simplifiée de la tête de la figure 6A, et
  • La figure 7 est une vue en perspective simplifiée d'une quatrième variante ne faisant pas partie de l'invention revendiquée.
In the figures:
  • The figure 1A is a schematic vertical cross-sectional view through a dispenser according to a first variant not forming part of the claimed invention,
  • The figure 1B is a front view of the distributor of the figure 1A ,
  • The figure 2A is a vertical cross-sectional view through the head of the dispenser. figures 1A and 1B ,
  • The figure 2B is a side view of the head of the figure 2A ,
  • The figure 2C is a perspective view of the heads of figures 2A and 2B ,
  • The figure 3A is an exploded vertical cross-sectional view of the head of figures 2A, 2B and 2C ,
  • The figure 3B is an exploded perspective view of the head of the figure 3A ,
  • The figure 4A is a perspective view of a dispensing head according to one embodiment of the invention,
  • The figure 4B is an exploded perspective view of the head of the figure 4A ,
  • The figure 5A is a vertical cross-sectional view through a dispensing and application head according to a second variant not forming part of the claimed invention,
  • The figure 5B is a simplified perspective view of the head of the figure 5A ,
  • The figure 6A is a vertical cross-sectional view through a dispensing and application head according to a third variant not forming part of the claimed invention,
  • The figure 6B is a simplified perspective view of the head of the figure 6A , and
  • The figure 7 is a simplified perspective view of a fourth variant not forming part of the claimed invention.

On se réfèrera tout d'abord aux figures 1A et 1B pour décrire très globalement la structure du distributeur de produit fluide selon une première variante ne faisant pas partie de l'invention revendiquée. Le distributeur comprend essentiellement trois éléments constitutifs, à savoir un réservoir de produit fluide 1, une unité de distribution 2, qui est ici une pompe à actionnement latéral, et une tête de distribution 3 constituée d'un embout 4 associé à un patin d'application 5.We will first of all refer to figures 1A and 1B to describe very generally the structure of the fluid dispenser according to a first variant not forming part of the claimed invention. The dispenser essentially comprises three constituent elements, namely a fluid reservoir 1, a unit dispenser 2, which is here a side-actuated pump, and a dispensing head 3 consisting of a nozzle 4 associated with an application pad 5.

Le réservoir de produit fluide 1 peut être de toute nature (avec ou sans reprise d'air), de toute forme et réalisée dans des matériaux divers appropriés (souple ou rigide). Dans le domaine de la cosmétique, il est fréquent d'utiliser un réservoir particulier, tel que représenté sur la figure 1A, comprenant un fût de coulissement cylindrique 10 associé à un piston suiveur 12 qui se déplace dans le fût 10 à mesure que du produit fluide en a été extrait. Ce type de réservoir permet de conserver le produit fluide hors de contact de l'air extérieur. Le piston suiveur 12 est disposé à une extrémité du fût 10 lorsque le réservoir est rempli, qui est opposé à l'autre extrémité du fût formant un col 11 définissant une ouverture faisant communiquer l'intérieur du réservoir avec l'extérieur. Il s'agit là d'une conception tout à fait classique pour un réservoir du type piston suiveur, mais d'autres types de réservoir peuvent être mis en œuvre sans pour autant sortir du cadre de l'invention.The fluid reservoir 1 can be of any kind (with or without air intake), of any shape and made of various suitable materials (flexible or rigid). In the field of cosmetics, it is common to use a particular reservoir, as shown in the figure 1A , comprising a cylindrical sliding barrel 10 associated with a follower piston 12 which moves in the barrel 10 as the fluid product has been extracted therefrom. This type of reservoir allows the fluid product to be kept out of contact with the outside air. The follower piston 12 is disposed at one end of the barrel 10 when the reservoir is filled, which is opposite the other end of the barrel forming a neck 11 defining an opening making the interior of the reservoir communicate with the exterior. This is a completely conventional design for a reservoir of the follower piston type, but other types of reservoir can be implemented without thereby departing from the scope of the invention.

La pompe 2 est une pompe à actionnement latéral comprenant un corps de pompe 20 définissant à son extrémité inférieure une entrée de produit fluide 21 en communication avec le réservoir 1. La pompe 2 comprend un clapet d'entrée 22 et un clapet de sortie 23 entre lesquels est formée une chambre de pompe 24 comprenant une paroi d'actionnement latéral 25 permettant de réduire le volume interne de la chambre 24. Il est à noter que la sortie 26 de la pompe 2 est fixe et située dans l'axe de la pompe et du distributeur. D'autres types de pompe peuvent également être utilisées dans le cadre de l'invention. On peut même utiliser une valve ou un tube souple à la place de la pompe.The pump 2 is a side-actuated pump comprising a pump body 20 defining at its lower end a fluid inlet 21 in communication with the reservoir 1. The pump 2 comprises an inlet valve 22 and an outlet valve 23 between which is formed a pump chamber 24 comprising a lateral actuating wall 25 making it possible to reduce the internal volume of the chamber 24. It should be noted that the outlet 26 of the pump 2 is fixed and located in the axis of the pump. and the distributor. Other types of pump can also be used in the context of the invention. You can even use a valve or a flexible tube instead of the pump.

La tête 3 est montée sur la sortie 26 de la pompe 2, de sorte qu'elle ne subit aucun déplacement lors de l'actionnement de la pompe 2 par le poussoir latéral 25. Comme susmentionné, la tête de distribution 3 comprend un embout 4 associé à un patin d'application 5. L'embout 4 présente un axe majeur longitudinal X et est avantageusement réalisé de manière monobloc. Il comprend un talon de raccordement 4t, une section de liaison 4l et un noyau de montage 4n pour le patin d'application 5. La section de liaison 4l est optionnelle ou peut être considérée comme faisant partie intégrante du talon 4t et/ou du noyau 4n. Cette section de liaison 4l peut être rigide ou déformable, notamment du fait qu'elle forme un rétrécissement entre le talon et le noyau. Lorsqu'elle est déformable, cela permet de conférer un certain degré de liberté de mouvement au patin 5. Le talon de raccordement 4t forme un manchon de raccordement 41 qui est engagé à force ou par encliquetage dans la partie supérieure de la pompe 2 qui définit la sortie 26.The head 3 is mounted on the outlet 26 of the pump 2, so that it does not undergo any movement when the pump 2 is actuated by the side pusher 25. As mentioned above, the dispensing head 3 comprises a nozzle 4 associated with an application pad 5. The end piece 4 has a major longitudinal axis X and is advantageously produced as a single piece. It includes a connecting heel 4t, a connecting section 4l and a mounting core 4n for the application pad 5. The connecting section 4l is optional or can be considered as an integral part of the heel 4t and / or of the core 4n. This connecting section 41 can be rigid or deformable, in particular because it forms a constriction between the heel and the core. When it is deformable, this makes it possible to give a certain degree of freedom of movement to the pad 5. The connecting heel 4t forms a connecting sleeve 41 which is engaged by force or by snapping into the upper part of the pump 2 which defines exit 26.

L'embout 4 est réalisée en matière plastique (PE ou PP par exemple), alors que le patin d'application 5 est avantageusement réalisé en un matériau caloporteur dur ou rigide, tel que du métal, de la céramique, un matériau minéral etc., apte à conférer une sensation de froid au contact de la peau. De préférence, la pièce 5 présente une épaisseur de paroi importante pour augmenter son inertie thermique. La densité du matériau caloporteur est supérieure à 2 et de préférence comprise entre 4 et 8. On peut également envisager d'utiliser un patin 5 réalisé en un matériau souple, comme un élastomère chargé. Un patin non caloporteur, par exemple en PE ou PP peut aussi être mis en œuvre.The end piece 4 is made of plastic (PE or PP for example), while the application pad 5 is advantageously made of a hard or rigid heat-transfer material, such as metal, ceramic, a mineral material, etc. , capable of imparting a feeling of cold on contact with the skin. Preferably, part 5 has a large wall thickness to increase its thermal inertia. The density of the heat-transfer material is greater than 2 and preferably between 4 and 8. It is also possible to envisage using a pad 5 made of a flexible material, such as a filled elastomer. A non-heat transfer pad, for example made of PE or PP, can also be used.

Le noyau de montage 4n forme un logement de réception L dans lequel le patin d'application 5 est engagé ou enchâssé. Le logement L comprend une lèvre annulaire souple 43 au niveau de son entrée, ainsi qu'une chambre de fixation 44 au niveau son fond. Entre la chambre 44 et la lèvre 43, le logement définit une paroi tronconique 42 ayant un angle solide de l'ordre de 90°, ou légèrement plus, pour des questions de facilité de démoulage.The mounting core 4n forms a receiving housing L in which the application pad 5 is engaged or embedded. The housing L comprises a flexible annular lip 43 at its entrance, as well as a fixing chamber 44 at its bottom. Between the chamber 44 and the lip 43, the housing defines a frustoconical wall 42 having a solid angle of the order of 90 °, or slightly more, for questions of ease of release.

Le patin d'application 5 présente avantageusement une symétrie de révolution et une forme similaire à une toupie. Plus précisément, le patin 5 comprend une surface d'application 51, qui peut être plane ou bombée (convexe). Cette surface d'application a la forme d'un disque bombé ou d'un dôme aplati. Le patin comprend également une paroi tronconique 52 de forme similaire ou identique à celle 42 du logement L. Entre la surface d'application 51 et la paroi tronconique 52, le patin forme un chant sensiblement cylindrique 53 contre lequel repose la lèvre souple 43 de manière à créer un contact annulaire étanche. Enfin, le patin 5 comprend un pointeau de fixation 54 qui est engagé à force, collé, soudé ou encliqueté dans la chambre de fixation 44 du logement L.The application pad 5 advantageously has a symmetry of revolution and a shape similar to a top. More precisely, the pad 5 comprises an application surface 51, which can be flat or convex (convex). This application surface has the shape of a domed disc or a flattened dome. The pad also comprises a frustoconical wall 52 of similar or identical shape to that 42 of the housing L. Between the application surface 51 and the frustoconical wall 52, the pad forms a substantially cylindrical edge 53 against which rests the flexible lip 43 of so as to create a sealed ring contact. Finally, the pad 5 comprises a fixing needle 54 which is forcibly engaged, glued, welded or snapped into the fixing chamber 44 of the housing L.

On peut remarquer sur la figure 2A qu'il subsiste un espace entre les deux parois tronconiques opposées 42 et 52 qui s'étend de la chambre de fixation 44 jusqu'à la lèvre souple 43 qui est en appui étanche contre le chant 53.We can notice on the figure 2A that there remains a space between the two opposite frustoconical walls 42 and 52 which extends from the fixing chamber 44 to the flexible lip 43 which bears tightly against the edge 53.

La tête de distribution et d'application 3 comprend également un conduit de distribution interne qui permet au produit fluide d'être acheminé de la sortie 26 jusqu'à un orifice de distribution 50, qui est ici formé au niveau du contact étanche entre la lèvre 43 et le chant 53. Cet orifice de distribution 50 s'étend tout autour du patin 5 et présente de ce fait une forme annulaire. Il se comporte telle une fente auto-jointante qui est fermée au repos et qui s'ouvre pour créer un passage de sortie sous la pression exercée par le produit fluide. L'orifice de distribution 50 forme la sortie du canal de distribution C.The distribution and application head 3 also comprises an internal distribution duct which allows the fluid product to be conveyed from the outlet 26 to a distribution orifice 50, which is here formed at the level of the sealed contact between the lip. 43 and the edge 53. This distribution orifice 50 extends all around the pad 5 and therefore has an annular shape. It behaves like a self-sealing slot which is closed at rest and which opens to create an outlet passage under the pressure exerted by the fluid. The distribution orifice 50 forms the outlet of the distribution channel C.

En amont de l'orifice de distribution 50, le canal de distribution comprend un tronçon de sortie Cs formé par l'espace entre les deux parois tronconiques opposées 42 et 52.Upstream of the distribution orifice 50, the distribution channel comprises an outlet section Cs formed by the space between the two opposite frustoconical walls 42 and 52.

En amont encore, le canal de distribution comprend un tronçon axial Ca qui s'étend à travers l'embout 3, avantageusement de manière centrée et rectiligne. Le tronçon axial Ca débouche dans le logement L au niveau de la paroi tronconique 42. Ainsi, le produit fluide refoulé sous pression à travers la sortie 26 de la pompe s'écoule à travers le tronçon axial Ca, puis à travers le tronçon de sortie Cs, force la lèvre souple 43 pour ouvrir l'orifice de distribution 50 pour finalement parvenir autour du patin 5.Also upstream, the distribution channel comprises an axial section Ca which extends through the nozzle 3, advantageously in a centered and rectilinear manner. The axial section Ca opens into the housing L at the level of the frustoconical wall 42. Thus, the fluid product delivered under pressure through the outlet 26 of the pump flows through the axial section Ca, then through the outlet section Cs, forces the flexible lip 43 to open the dispensing orifice 50 to finally reach around the pad 5.

On peut noter que le tronçon de sortie Cs, ainsi que l'orifice de distribution 50, sont formés conjointement par le noyau de montage 4n et le patin 5. Autrement dit, le tronçon de sortie Cs comprend des parois internes opposées qui sont respectivement formées par le noyau de montage 4n et le patin d'application 5. On peut considérer que l'orifice de distribution 50 constitue la partie ultime ou terminale du tronçon de sortie Cs.It can be noted that the outlet section Cs, as well as the dispensing orifice 50, are formed jointly by the mounting core 4n and the pad 5. In other words, the outlet section Cs comprises opposite internal walls which are respectively formed. by the mounting core 4n and the application pad 5. It can be considered that the dispensing orifice 50 constitutes the ultimate or terminal part of the outlet section Cs.

Il faut aussi remarquer que l'embout 4 est d'une conception très simple avec le tronçon axial Ca centré et droit et le logement L largement ouvert et bien orienté pour garantir un démoulage aisé. D'autre part, le patin 5 est totalement symétrique de révolution et ne comporte aucun passage traversant. Ensuite, le tronçon de sortie Cs s'étend sur une surface importante du patin 5, de sorte de le produit fluide peut rapidement prendre la température du patin. Par ailleurs, la lèvre souple 43 fait fonction d'obturateur de sortie, permettant une meilleure conservation du produit fluide dans la tête 3. Enfin, le montage du patin 5 dans le logement L, selon un axe de montage Y qui est transversal à l'axe X, est très facilement automatisable.It should also be noted that the nozzle 4 is of a very simple design with the axial section Ca centered and straight and the housing L widely open and well oriented to ensure easy demolding. On the other hand, the shoe 5 is completely symmetrical in revolution and has no through passage. Then, the outlet section Cs extends over a large area of the pad 5, so that the fluid can quickly take the temperature of the pad. Furthermore, the flexible lip 43 acts as an outlet shutter, allowing better conservation of the fluid in the head 3. Finally, the mounting of the pad 5 in the housing L, along a mounting axis Y which is transverse to the x axis, is very easily automated.

En variante, il est possible de se passer de la lèvre souple 43, de sorte que l'orifice de distribution serait alors formé par une fente annulaire ouverte en permanence. Il est également possible de prévoir une lèvre rigide qui est interrompue localement pour former un ou plusieurs orifice(s) de distribution. Le tronçon de sortie Cs est formé entre des parois tronconiques 42 et 52 : on peut prévoir d'autres formes pour les parois opposées, dans la mesure où elles définissent entre elles un espace qui mène du tronçon axial Ca à l'orifice de distribution.As a variant, it is possible to do without the flexible lip 43, so that the dispensing orifice would then be formed by a permanently open annular slot. It is also possible to provide a rigid lip which is interrupted locally to form one or more distribution orifice (s). The outlet section Cs is formed between frustoconical walls 42 and 52: other shapes can be provided for the opposite walls, insofar as they define between them a space which leads from the axial section Ca to the distribution orifice.

En se référant maintenant aux figures 4A et 4B, on peut voir une tête de distribution et d'application 3a selon un mode de réalisation de l'invention. L'embout monobloc 4a comprend un talon de raccordement 4t et une section de liaison 4l qui peuvent être identiques ou similaires à ceux de la première variante des figures 1A à 3B. Le noyau de montage 4n est différent, en ce qu'il forme une première portion de surface d'application étendue 41a qui est délimitée dans sa partie supérieure par un bord profilé 46, qui présente une échancrure 46a, formant une partie d'un orifice de distribution 50a. Sur la figure 4B, on voit que le noyau 4n comprend un téton de montage 45 pour le patin d'application 5a. Ce téton 45, ainsi que la portion de surface d'application étendue 41a, présente une orientation inclinée par rapport à l'axe longitudinal X de l'embout 3a.Referring now to figures 4A and 4B , we can see a dispensing and application head 3a according to one embodiment of the invention. The one-piece end piece 4a comprises a connecting heel 4t and a connecting section 4l which may be identical or similar to those of the first variant of figures 1A to 3B . The mounting core 4n is different, in that it forms a first portion of extended application surface 41a which is delimited in its upper part by a profiled edge 46, which has a notch 46a, forming part of an orifice. distribution 50a. On the figure 4B , it can be seen that the core 4n comprises a mounting stud 45 for the application pad 5a. This stud 45, as well as the extended application surface portion 41a, has an inclined orientation with respect to the longitudinal axis X of the nozzle 3a.

Le patin d'application 5a, dans ce mode de réalisation, se présente sous la forme d'un capot ou capuchon arrondi qui définit intérieurement un logement de montage 55 adapté à recevoir le téton de montage 45. Le patin 5a définit une seconde portion de surface d'application étendue 51a qui est délimité dans sa partie inférieure par un bord profilé complémentaire 56 qui est complémentaire au bord profilé 46 du noyau 4n, excepté au niveau de l'échancrure 46a, où le bord profilé complémentaire 56 est décollée en 56a de l'échancrure 46a pour former une autre partie d'un orifice de distribution 50a. Ainsi, l'orifice de distribution 50a est formé conjointement par le noyau 4n et le patin 5a, dès lors que le patin 5a est rapporté sur le noyau 4n par un mouvement de coulissement le long d'un axe de montage Z qui est orienté de manière transversale par rapport à l'axe longitudinal X.The application pad 5a, in this embodiment, is in the form of a rounded cap or cap which internally defines a mounting housing 55 adapted to receive the mounting stud 45. The pad 5a defines a second portion of extended application surface 51a which is delimited in its lower part by a complementary profiled edge 56 which is complementary to the profiled edge 46 of the core 4n, except at the level of the notch 46a, where the complementary profiled edge 56 is detached at 56a from the notch 46a to form another part of a dispensing orifice 50a. Thus, the dispensing orifice 50a is formed jointly by the core 4n and the pad 5a, since the pad 5a is attached to the core 4n by a sliding movement along a mounting axis Z which is oriented in the same direction. transverse to the longitudinal axis X.

On peut noter que l'embout 3a est traversé par un canal de distribution Caa (représenté en traits pointillés sur la figure 4A), qui est à la fois centré sur l'axe X et rectiligne d'un bout à l'autre, de sorte que l'orifice de distribution 50a est situé sur l'axe X. D'ailleurs, cet orifice de distribution 50a peut être considéré comme le tronçon de sortie ultime du canal de distribution Caa.It can be noted that the end piece 3a is crossed by a distribution channel Caa (shown in dotted lines on the figure 4A ), which is both centered on the X axis and straight from end to end, so that the dispensing orifice 50a is located on the X axis. Moreover, this dispensing orifice 50a can be considered as the ultimate exit section of the Caa distribution channel.

La surface d'application de cette tête 3a est formée conjointement par le noyau 4n et le patin 5a, sensiblement à parts égales. Les bords 46 et 56 se rejoignent de manière à créer une continuité de surface. On peut dire que le patin 5a complète le noyau 4n, ou inversement. Ils forment ensemble une sorte de galet arrondi ne présentant aucune arête vive.The application surface of this head 3a is formed jointly by the core 4n and the pad 5a, substantially in equal parts. The edges 46 and 56 meet so as to create a surface continuity. We can say that the pad 5a completes the core 4n, or vice versa. Together they form a kind of rounded pebble with no sharp edges.

Sur les figures 5A et 5B, on voit une tête de distribution et d'application 3b selon une seconde variante ne faisant pas partie de l'invention revendiquée.On the figures 5A and 5B , we see a dispensing and application head 3b according to a second variant not forming part of the claimed invention.

L'embout monobloc 4b comprend un talon de raccordement 4t et une section de liaison 4l qui peuvent être identiques ou similaires à ceux de la première variante et du mode de réalisation. Le noyau de montage 4n comprend un téton de montage 45b pour le patin d'application 5b, ainsi qu'une lèvre souple inférieure 47 qui vient en contact étanche avec un bord inférieur du patin 5b, formant ainsi une fente auto-jointante, comme dans la première variante.The one-piece end piece 4b comprises a connecting heel 4t and a connecting section 4l which may be identical or similar to those of the first variant and of the embodiment. The mounting core 4n comprises a mounting stud 45b for the application pad 5b, as well as a lower flexible lip 47 which comes into sealing contact with a lower edge of the pad 5b, thus forming a self-joining slot, as in the first variant.

Le patin d'application 5b, dans cette seconde variante ne faisant pas partie de l'invention revendiquée, se présente également sous la forme d'un capot ou capuchon arrondi qui définit intérieurement un logement de montage 55b adapté à recevoir le téton de montage 45b. Le patin 5b et le noyau 4n présentent une orientation inclinée par rapport à l'axe longitudinal de l'embout 4b. Le patin 5a est rapporté sur le noyau 4n par un mouvement de coulissement le long d'un axe de montage qui est orienté de manière transversale par rapport à l'axe longitudinal X.The application pad 5b, in this second variant not forming part of the claimed invention, is also in the form of a rounded cap or cap which internally defines a mounting housing 55b adapted to receive the mounting stud 45b. . The pad 5b and the core 4n have an inclined orientation with respect to the longitudinal axis of the end piece 4b. The pad 5a is attached to the core 4n by a sliding movement along a mounting axis which is oriented transversely with respect to the longitudinal axis X.

L'embout 4b est traversé par un tronçon de canal de distribution Cab qui est à la fois centré sur l'axe X et rectiligne. Ce tronçon Cab débouche en aval sur un tronçon de sortie Csb, qui est formé conjointement par le noyau 4n et une face interne du patin 5b. Ce tronçon Csb s'étend vers le bas jusqu'à la lèvre inférieure 47, qui est en appui souple étanche sur le patin 5b. Lorsque du produit fluide sous pression est refoulé à travers la tête 3b, il s'écoule d'abord à travers le tronçon axial Cab, puis à travers le tronçon de sortie Csb et déforme la lèvre 47 qui se décolle du patin 5b pour former un orifice de distribution 50b.The end piece 4b is crossed by a section of the distribution channel Cab which is both centered on the X axis and rectilinear. This Cab section opens downstream into an outlet section Csb, which is formed jointly by the core 4n and an internal face of the pad 5b. This section Csb extends downward to the lower lip 47, which rests in flexible tight support on the pad 5b. When the pressurized fluid product is delivered through the head 3b, it first flows through the axial section Cab, then through the outlet section Csb and deforms the lip 47 which detaches from the pad 5b to form a distribution orifice 50b.

Les figures 6A et 6B montrent une variante de réalisation des figures 5A et 5B. L'embout 3c et le patin 5c peuvent identiques ou similaires à ceux des figures 5A et 5B, excepté que le noyau 4n ne forme plus de lèvre souple 47 en appui étanche sur le patin 5b, mais un bord rigide 47c disposé en éloignement du patin 5c, de manière à former entre eux un orifice de distribution 50c sous la forme d'une fente courbe allongée.The figures 6A and 6B show an alternative embodiment of figures 5A and 5B . The end piece 3c and the pad 5c can be identical or similar to those of figures 5A and 5B , except that the core 4n no longer forms a flexible lip 47 resting tightly on the pad 5b, but a rigid edge 47c disposed away from the pad 5c, so as to form between them a distribution orifice 50c in the form of a elongated curved slit.

La figure 7 montre une variante de réalisation des figures 6A et 6B, qui se caractérise par le fait que l'orifice de distribution 50d est formé par une dépression locale du patin 5d, qui est hors de contact du noyau.The figure 7 shows an alternative embodiment of figures 6A and 6B , which is characterized in that the dispensing orifice 50d is formed by a local depression of the pad 5d, which is out of contact with the core.

Dans le mode de réalisation et les variantes ne faisant pas partie de l'invention revendiquée qui viennent d'être décrits, au moins une partie du canal de distribution est formé conjointement par le noyau de montage et le patin applicateur, cette partie de canal pouvant se limiter au seul orifice de distribution, comme dans le mode de réalisation des figures 4A et 4B.In the embodiment and the variants not forming part of the claimed invention which have just been described, at least part of the distribution channel is formed jointly by the mounting core and the applicator pad, this channel part being able to itself limit to the single dispensing orifice, as in the embodiment of figures 4A and 4B .

Dans le mode réalisation et les variantes ne faisant pas partie de l'invention revendiquée qui viennent d'être décrits, le canal de distribution ne traverse jamais le patin applicateur, mais le longe. Il est ainsi plus facile de traiter le patin en lui appliquant un revêtement inerte, ce qui est nécessaire, notamment lorsqu'il est réalisé en Zamac®. Etant donné que toutes les surfaces du patin sont des surfaces externes faciles d'accès, le traitement de surface peut être complet et uniforme.In the embodiment and the variants not forming part of the claimed invention which have just been described, the distribution channel never passes through the applicator pad, but runs along it. It is easier to treat it pad applying an inert coating, which is necessary, especially when made of Zamac ®. Since all surfaces of the pad are easily accessible external surfaces, the surface treatment can be complete and uniform.

Dans le mode de réalisation et les variantes ne faisant pas partie de l'invention revendiquée qui viennent d'être décrits, le canal de distribution est rectiligne et centré axialement au niveau de l'embout. Dans le mode de réalisation et les variantes ne faisant pas partie de l'invention revendiquée qui viennent d'être décrits, l'orifice de distribution débouche au niveau d'une périphérie externe du patin applicateur. Il peut être considéré comme la partie terminale du tronçon de sortie.In the embodiment and the variants not forming part of the claimed invention which have just been described, the distribution channel is rectilinear and axially centered at the level of the nozzle. In the embodiment and the variants not forming part of the claimed invention which have just been described, the dispensing orifice opens out at an outer periphery of the applicator pad. It can be considered as the end part of the output section.

L'orifice de distribution est situé sur l'axe longitudinal de la tête, comme décrit dans le mode de réalisation des figures 4A et 4B. L'orifice de distribution peut être ponctuel, comme dans le mode de réalisation des figures 4A, 4B dans la variante de la figure 7, allongé ouvert, comme dans la variante des figures 6A et 6B, allongé fermé, comme dans la variante des figures 5A et 5B, ou encore annulaire ouvert ou fermé, comme dans la variante des figures 1A et 3B.The dispensing orifice is located on the longitudinal axis of the head, as described in the embodiment of figures 4A and 4B . The dispensing orifice can be punctual, as in the embodiment of figures 4A, 4B in the variant of figure 7 , lying open, as in the variant of figures 6A and 6B , elongated closed, as in the variant of figures 5A and 5B , or even open or closed annular, as in the variant of figures 1A and 3B .

Dans le mode de réalisation et les variantes ne faisant pas partie de l'invention revendiquée qui viennent d'être décrits, le talon de raccordement est raccordé directement ou indirectement au noyau de montage. La section de liaison est rigide ou souple. L'embout est de préférence monobloc et mono-matière, mais des conceptions multi-matières par montage ou bi-injection sont aussi possibles.In the embodiment and the variants not forming part of the claimed invention which have just been described, the connecting heel is connected directly or indirectly to the core of Assembly. The connecting section is rigid or flexible. The tip is preferably one-piece and one-material, but multi-material designs by assembly or bi-injection are also possible.

Claims (11)

  1. A dispenser and applicator head (3a) for associating with a dispenser unit (2), such as a pump, a valve, or a squeezable tube, the head comprising:
    • a connection stub (4t) for connecting to the dispenser unit (2),
    • an assembly core (4n) that is connected to the connection stub (4t),
    • a fluid applicator pad (5a) that is mounted on the assembly core (4n) and that is for coming into contact with a target surface, such as the skin, so as to apply the fluid onto the target surface,
    • a dispenser channel (Caa) that passes through the connection stub (4t) and the assembly core (4n) and that forms a dispenser orifice (50a), the dispenser channel (Caa) including an outlet segment (50a) that is formed jointly by the assembly core (4n) and by the fluid applicator pad (5a),
    the dispenser and applicator head being characterized in that the connection stub (4t) and the assembly core (4n) define a longitudinal axis (X), the dispenser channel (Caa) extending along the longitudinal axis (X) of the connection stub (4t) to the dispenser orifice (50a).
  2. A head according to claim 1, wherein the outlet segment (50a) includes facing inner walls that are formed respectively by the assembly core (4n) and by the fluid applicator pad (5a).
  3. A head according to claim 1 or claim 2, wherein the dispenser orifice (50a) is formed jointly by the assembly core (4n) and by the fluid applicator pad (5a).
  4. A head according to any preceding claim, wherein the dispenser orifice (50a) extends over the outer periphery of the fluid applicator pad (5a).
  5. A head according to any preceding claim, wherein the dispenser channel (Caa) includes an axial segment (Caa) that passes through the connection stub (4t) and the assembly core (4n), extending along the longitudinal axis (X).
  6. A head according to any one of claim 5, wherein the axial segment (Caa) is connected downstream to the outlet segment (50a).
  7. A head according to any preceding claim, the one longitudinal axis (X) extending at least through the connection stub (4t) and the assembly core (4n), the applicator pad (5a) being mechanically fitted and mounted on the assembly core (4n) along a mounting axis (Y; Z) that extends transversally relative to the longitudinal axis (X).
  8. A head according to any preceding claim, wherein the applicator pad (5a) is made out of a heat-transfer material, such as metal or ceramic, advantageously having a specific gravity greater than 2, so as to impart a cold sensation on contact with the skin.
  9. A head according to any preceding claim, wherein the assembly core (4n) is connected to the connection stub (4t) by means of a flexible interconnection section (4f) through which the dispenser channel (Caa) also passes.
  10. A head according to any preceding claim, wherein the assembly core (4n) and the connection stub (4t) are made as a single-piece part, through which only the dispenser channel (Caa) advantageously passes.
  11. A head according to any preceding claim, wherein the assembly core (4n) and the applicator pad (5a) co-operate with each other to form an applicator surface for coming into contact with a target surface.
EP17794359.4A 2017-09-29 2017-09-29 Dispensing and application head Active EP3687703B1 (en)

Applications Claiming Priority (1)

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PCT/FR2017/052681 WO2019063888A1 (en) 2017-09-29 2017-09-29 Dispensing and application head

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EP3687703B1 true EP3687703B1 (en) 2021-12-22

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EP (1) EP3687703B1 (en)
KR (1) KR20200061391A (en)
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Publication number Priority date Publication date Assignee Title
FR3098734A1 (en) * 2019-07-18 2021-01-22 Gb Developpement Fluid dispenser
US11653739B1 (en) * 2022-01-31 2023-05-23 APR Beauty Group, Inc. Applicator head for a fluid product
WO2023193900A1 (en) * 2022-04-05 2023-10-12 Quadpack Industries S.A. Cosmetic package

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
ATE186183T1 (en) * 1994-11-18 1999-11-15 Procter & Gamble BALL APPLICATION DEVICE
FR2852933B1 (en) * 2003-03-24 2005-05-13 Airlessystems FLUID PRODUCT DISPENSER.
FR2884157B1 (en) * 2005-04-08 2007-07-06 Airlessystems Soc Par Actions HEAD OF DISTRIBUTION
US7883287B2 (en) 2007-05-10 2011-02-08 HCT Asia, Ltd Dispenser with thermal storage tip
KR101252115B1 (en) * 2011-10-12 2013-04-12 (주)연우 Pumping type ampule vessel
FR2989600B1 (en) 2012-04-20 2017-01-13 Valois Sas HEAD OF DISTRIBUTION AND APPLICATION.
KR101464686B1 (en) * 2013-04-10 2014-11-27 (주)연우 Dispenser with a metal applicator
EP3013183B1 (en) 2013-06-24 2019-04-17 HCT Group Holding Limited Dispenser with spaced thermal member
FR3009208B1 (en) * 2013-07-31 2018-04-27 Aptar France Sas HEAD OF DISTRIBUTION AND APPLICATION
KR101511120B1 (en) * 2014-04-11 2015-05-15 (주)연우 Tube vessel with an applicator
KR101778581B1 (en) * 2016-03-28 2017-09-14 (주)연우 Tube vessel with a applicator

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WO2019063888A1 (en) 2019-04-04
US20200305574A1 (en) 2020-10-01
CN111182976A (en) 2020-05-19
EP3687703A1 (en) 2020-08-05
KR20200061391A (en) 2020-06-02

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