EP0549050B1 - Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics - Google Patents

Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics Download PDF

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Publication number
EP0549050B1
EP0549050B1 EP92203941A EP92203941A EP0549050B1 EP 0549050 B1 EP0549050 B1 EP 0549050B1 EP 92203941 A EP92203941 A EP 92203941A EP 92203941 A EP92203941 A EP 92203941A EP 0549050 B1 EP0549050 B1 EP 0549050B1
Authority
EP
European Patent Office
Prior art keywords
seat
dispensing
product
unit according
elastic
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.)
Expired - Lifetime
Application number
EP92203941A
Other languages
German (de)
French (fr)
Other versions
EP0549050A1 (en
Inventor
Jean-Louis Gueret
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.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR898910000A external-priority patent/FR2650255B1/en
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0549050A1 publication Critical patent/EP0549050A1/en
Application granted granted Critical
Publication of EP0549050B1 publication Critical patent/EP0549050B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05B11/1061—Pump priming means
    • 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
    • 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
    • A45D37/00—Sachet pads specially adapted for liquid toiletry or cosmetic substances
    • 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
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • 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
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters
    • 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
    • B05B11/0078—Arrangements for separately storing several components
    • 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
    • B05B11/026—Membranes 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
    • B05B11/02—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
    • B05B11/1001—Piston pumps
    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • 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
    • 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
    • B05B11/1052—Actuation means
    • B05B11/1056—Actuation means comprising rotatable or articulated levers
    • 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
    • B05B11/1052—Actuation means
    • B05B11/1056—Actuation means comprising rotatable or articulated levers
    • B05B11/1057—Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • 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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • 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
    • A45D2040/0018—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks with indirect access, e.g. requiring an initial action for separating the cap from the stick holder
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/051—Airtight containers
    • 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
    • A45D2200/056—Reciprocating pumps, i.e. with variable volume chamber wherein pressure and vacuum are alternately generated
    • 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
    • A45D2200/058—Means for mixing different substances prior to application
    • 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
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means

Definitions

  • the present invention relates to a distribution assembly for one or more fluid product (s) in the form of a liquid or cream (or paste) of varying thickness. This set makes it possible in particular to distribute cosmetic or pharmaceutical products.
  • Numerous dispensing assemblies comprising a container containing the product to be dispensed, on which a dispensing head is fixed, removably or not.
  • This dispensing head includes a device allowing the user to activate the dispensing, and at least one dispensing channel communicating, on the one hand, with the container containing the product to be dispensed, and, on the other hand, with the 'outside.
  • the container when there are several products to be distributed, can comprise several parts, either because it consists of several independent containers, or because it consists of a single container divided by internal partitions into several compartments, each of the containers or compartments being connected to a channel of the same dispensing head.
  • the dispensing head may also contain a compartment for a product different from that contained in the container, this compartment being connected to the distribution channel for the product contained in the container or to a different channel.
  • the closure system consists of the edge of the sleeve of elastic material which rests on the two opposite faces of the end of said planar partition; this edge is in contact with these two faces of the partition when there is no distribution, deviates from these faces when there is distribution of the product to be distributed and returns by elasticity in contact with these faces when ceases the distribution.
  • the present invention aims to provide for the distribution assemblies, a closure system which is perfectly sealed at rest, that is to say when there is no product distribution, which opens only under the pressure of the product to be dispensed, and which practically does not allow, by itself, air intake.
  • This system is, therefore, aseptic by itself, which is not the case for the patent US-A-4,099,651 mentioned above.
  • the present invention therefore relates to a distribution assembly of at least one fluid product, assembly which comprises a container and a distribution head containing at least one distribution channel for the product (s) to be distributed, a distribution system closure being located at the terminal part, opening on the outside of (or each) distribution channel, said system being formed by at least one obturator which is part of a piece of elastically deformable material of the distribution head and by at least one seat, which is part of another part of the dispensing head, the shutter (s) being in contact with their associated seat when there is no dispensing, s 'spreading from said seat by elastic deformation under the pressure of the product to be dispensed and returning by elasticity in contact with said seat when the dispensing ceases, characterized in that the shutter is constituted by an elastic piece, one of which he part is arranged opposite the opening of the channel and which, in this zone, departs from the seat by elasticity parallel to the direction of thrust of the product.
  • the tightness mentioned in the definition below is only ensured with production imperfections. According to the invention, it must be sufficient to prevent practically any aspiration of air through the closure system after the end of the dispensing of the product, whatever the viscosity of the product to be dispensed. Since the seal is somewhat a function of the contact area between the shutter and the seat, the invention provides for choosing a contact area having a size sufficient for the seal to be ensured.
  • the closure system therefore forms a valve or a valve which can only open in one direction: the direction of distribution of the product.
  • the closure system according to the invention which, in practice, consists only of a small contact area between a shutter of flexible material and a seat, has the advantage of being able to adapt to all of the dispensing heads. , whether they are mounted on welded tubes, distributors with follower piston or flexible bag or on rigid bottles. It can also easily be integrated with dispensing heads having very variable aesthetic shapes. Indeed, the flexible part comprising the shutter and the part carrying the seat of the shutter can have various shapes.
  • the shutter can be of any material that can deform elastically. It is preferably made of natural, synthetic or thermoplastic elastomer.
  • elastomers which can be used, there may be mentioned, for example, styrene-butadiene copolymers, nitrile rubbers, polychloroprene or neoprene, EPDM rubber, polyurethanes, silicone rubber and ethylene-vinyl acetate copolymers.
  • the seat is preferably made of a rigid material.
  • the (or each) shutter (s) is subjected to the action of a constraint member tending to keep it (or them) applied (s) on the seat with which it (s) cooperates (s) to seal the closing contact.
  • the constraint member has the function of maintaining the shutter applied to the seat during storage and of increasing the pressure necessary to obtain the deformation of the shutter. This improves the tightness of the closure system. It can also have the function of facilitating the return of the shutter to its closed position. In the absence of a restraining member, it is often difficult to maintain the seal of the closure during the storage before and after the first use of the product to be dispensed.
  • the constraint member is, more particularly, constituted by a lug or bead of substantially elastic material holding the flexible part on the rigid element comprising the seat, so as to oppose the deformation of the shutter.
  • the end part of the distribution channel is preferably delimited on the one hand, by a part partially made of flexible material comprising the shutter and on the other hand, by a part comprising the seat of the shutter.
  • the channel can be formed in the room comprising the shutter and / or in the room comprising the seat.
  • the passage of the product from the channel to the closure system is by a slope, so as to facilitate the flow of the product, avoiding a threshold effect. This slope is advantageously located in the seat.
  • the channel can also be delimited by an area where the part comprising the shutter and the part comprising the seat are assembled in a sealed manner, for example by gluing or using a weld bead.
  • the elastic part constituting the shutter, advantageously forms part of a toroid disposed externally around the dispensing head.
  • the torus can go all the way around the dispensing head or can be interrupted and include at each end an anchorage in the part comprising the seat.
  • the piece of elastic material includes a product supply channel. It is also possible to provide a channel having the same function in the rigid seat, opposite the piece of elastic material.
  • the cross section of the elastic torus can have various shapes: circular, elliptical, triangular or the like.
  • the constraint organ is advantageously consisting of a lug capable of being inserted in a corresponding housing of the part comprising a rigid seat, this lug being arranged on the side opposite to the product supply channel.
  • the closure system according to the invention can be used in many types of dispensing head.
  • Figures 1 to 3 show dispensing heads according to the invention in which the shutter is an elastic piece disposed vis-à-vis the outlet of the distribution channel and which departs from the seat parallel to the thrust of the liquid to distribute.
  • FIG. 1 schematically represents a distribution assembly 2501, the distribution head 2503 of which forms a pump because it comprises two valves.
  • the distribution assembly 2501 comprises a flexible pocket 2502 protected by a rigid enclosure 2510 provided with an air intake opening 2510 a .
  • the dispensing head comprises, firstly, a piece 2504 comprising the seat, secondly, an O-ring piece 2505 molded in one piece with a flexible blade forming a dome 2507 and carrying a lug 2508 forming part of a second valve 2513, and, thirdly, a cover 2506.
  • the part 2504 comprising the seat has the general shape of a disc fixed on the upper edge of the rigid enclosure 2510 and it is provided with a cylindrical inner skirt 2541 on which the flexible pocket 2502 is welded.
  • a groove 2542 having in section the shape of a segment of a circle into which opens a radial channel 2543 hollowed out in the part 2504.
  • the part 2504 is hollowed out by a channel 2544 parallel to the longitudinal axis of the assembly 2501 which opens into the flexible pocket 2502 at one end and is in communication with a notch 2545 of the part 2504, separated from the channel 2544 by a wall 2546 parallel to the axis of the assembly 2501, the upper edge of which is beveled.
  • the O-ring 2505 has, in section, the shape of a circle provided with a lug 2552 at the level of the closure system and it fits into the groove 2542.
  • the dome 2507 is located above the support 2504 and it defines above said support 2504, an internal space E which communicates, on the one hand, with the channel 2543 and, on the other hand, with the notch 2545.
  • the base of the dome 2507 extends on the side opposite to the opening of the channel 2543 by a plate carrying a lug 2508 which cooperates with the wall 2546 to form a valve 2513. In this valve 2513, the lug 2508 rests in a sealed manner on the surface of the rim of the wall 2546.
  • the cover 2506 is fixed on the periphery of the support 2504 and it is provided with an opening 2561 through which the dome 2507 projects.
  • the cover 2506 is hollowed out by a groove 2562 having the shape in section, of a circle segment which adjusts to the groove 2542 to form together (in section) a larger circle segment.
  • a product supply channel 2509 At the outlet of the distribution channel 2543, above it the groove 2562 and, a fraction of the groove 2542 are dug by a product supply channel 2509.
  • the assembly 2501 operates as follows.
  • the user wishes to distribute the product, he presses on the elastic dome 2507 and reduces the internal space E, the valve 2513 being closed.
  • the product contained in this space undergoes an overpressure and exerts a thrust via the channel 2543 on the torus 2505. It causes the displacement of the latter by elasticity in the direction of the arrow f 2 , which opens the channel of brought 2509 on the outside.
  • the product is distributed.
  • the pressure of the product to be distributed on the torus 2505 ceases and the latter resumes its place by elasticity and closes the channel 2509.
  • the dome regaining its shape by elasticity, it occurs a depression in the space E.
  • This depression causes the opening of the valve 2513, the lug 2508 deviating by bending from the edge of the partition 2546.
  • the product contained in the bag 2502 is sucked into the space E by the conduit 2544 and the notch 2545.
  • the dispensing head is ready for a new distribution of the product.
  • FIG. 3 represents a distribution head 2403 with lateral outlet.
  • the distribution head 2403 consists of a piece 2404 comprising the plastic seat 2442 pierced with a distribution channel 2441 bent at a right angle which opens in an annular groove 2442 whose section has the shape of a portion of a circle .
  • a toric piece of flexible material 2405 which goes around the dispensing head 2403.
  • the toric piece 2405 forms a shutter and the groove 2442 forms a seat.
  • the toric piece 2405 Opposite the outlet of the distribution channel 2441 the toric piece 2405 is hollowed out by a supply channel 2451 which communicates with the distribution channel and has a shape such that it can direct the flow of dispensed product upwards (in FIG. 3).
  • a supply channel 2451 which communicates with the distribution channel and has a shape such that it can direct the flow of dispensed product upwards (in FIG. 3).
  • the torus 2405 is provided with a lug 2452 which fits into a corresponding groove in the part 2404 and which constitutes the constraint member.
  • the dispensing head 2403 is shown in the rest position, the toric piece 2405 being fitted into the groove 2442 so that the supply channel 2451 is closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Cosmetics (AREA)
  • Packages (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Lift Valve (AREA)

Abstract

A dispenser for a fluid substance, esp. used in cosmetics or pharmaceuticals, consists of a cap (1) which fits onto the container (2) and made with at least one outlet channel (8). The/each outlet channel has a system which closes its outlet, made in the form of a shutter (9a) which is able to deform elastically and interact with a seat (8e). The deforming shutter and seat form a self-closing valve which is opened by the pressure of the fluid passing through it but closes once the pressure stops. The shutter is pressed towards the seat by a support which limits its deformation. The pressure which expels the fluid from the container can be of various types, e.g. a pump piston or flexible bulb.

Description

La présente invention concerne un ensemble de distribution d'un ou plusieurs produit(s) fluide(s) sous forme de liquide ou de crème (ou pâte) plus ou moins épaisse. Cet ensemble permet notamment de distribuer des produits cosmétiques ou pharmaceutiques.The present invention relates to a distribution assembly for one or more fluid product (s) in the form of a liquid or cream (or paste) of varying thickness. This set makes it possible in particular to distribute cosmetic or pharmaceutical products.

On connaît de nombreux ensembles de distribution comportant un récipient contenant le produit à distribuer, sur lequel on fixe, de façon amovible ou non, une tête de distribution. Cette tête de distribution comporte un dispositif permettant à l'utilisateur d'actionner la distribution, et au moins un canal de distribution communiquant, d'une part, avec le récipient contenant le produit à distribuer, et, d'autre part, avec l'extérieur.Numerous dispensing assemblies are known comprising a container containing the product to be dispensed, on which a dispensing head is fixed, removably or not. This dispensing head includes a device allowing the user to activate the dispensing, and at least one dispensing channel communicating, on the one hand, with the container containing the product to be dispensed, and, on the other hand, with the 'outside.

De façon connue, lorsqu'il y a plusieurs produits à distribuer, le récipient peut comporter plusieurs parties, soit qu'il soit constitué de plusieurs conteneurs indépendants, soit qu'il soit constitué d'un conteneur unique divisé par des cloisons internes en plusieurs compartiments, chacun des conteneurs ou des compartiments étant relié à un canal de la même tête de distribution. La tête de distribution peut également contenir un compartiment pour un produit différent de celui contenu dans le récipient, ce compartiment étant relié au canal de distribution du produit contenu dans le récipient ou à un canal différent.In a known manner, when there are several products to be distributed, the container can comprise several parts, either because it consists of several independent containers, or because it consists of a single container divided by internal partitions into several compartments, each of the containers or compartments being connected to a channel of the same dispensing head. The dispensing head may also contain a compartment for a product different from that contained in the container, this compartment being connected to the distribution channel for the product contained in the container or to a different channel.

Il est connu, qu'après la distribution du produit, une partie de celui-ci reste dans le canal de distribution. Cette partie du produit est en contact avec l'air lors de la reprise d'air de la tête de distribution et, éventuellement, au cours du stockage. Le produit peut donc être dégradé par oxydation ou souillé par les impuretés et les micro-organismes de l'air et, par conséquent, lors d'une distribution ultérieure, le produit distribué pourra avoir perdu ses qualités et même être devenu nocif.It is known that after the distribution of the product, part of it remains in the distribution channel. This part of the product is in contact with air during the air intake from the dispensing head and, possibly, during storage. The product can therefore be degraded by oxidation or contaminated by impurities and microorganisms in the air and, consequently, during a subsequent distribution, the distributed product may have lost its qualities and even become harmful.

Dans US-A-4 099 651, on a proposé de résoudre ce problème par un système de fermeture ne s'ouvrant que sous la poussée du produit à distribuer. Ce brevet décrit une tête de distribution comportant un élément tubulaire fixé sur l'embout d'un tube souple ; l'élément tubulaire contient, sur au moins une partie de sa longueur, une cloison plane qui dépasse de l'élément tubulaire : deux canaux de sortie du produit sont ainsi définis. Un manchon en matériau élastique est enfilé sur l'élément tubulaire et sur la partie de la cloison plane qui en dépasse. Le système de fermeture est constitué par le bord du manchon en matériau élastique qui repose sur les deux faces opposées de l'extrémité de ladite cloison plane ; ce bord est en contact avec ces deux faces de la cloison lorsqu'il n'y a pas de distribution, s'écarte de ces faces lorsqu'il y a distribution du produit à distribuer et revient par élasticité en contact avec ces faces lorsque cesse la distribution.In US-A-4,099,651, it has been proposed to solve this problem by a closure system which opens only under the pressure of the product to be dispensed. This patent describes a dispensing head comprising a tubular element fixed to the end piece of a flexible tube; the tubular element contains, over at least part of its length, a flat partition which protrudes from the tubular element: two product outlet channels are thus defined. A sleeve of elastic material is fitted over the tubular element and over the part of the planar partition which projects beyond it. The closure system consists of the edge of the sleeve of elastic material which rests on the two opposite faces of the end of said planar partition; this edge is in contact with these two faces of the partition when there is no distribution, deviates from these faces when there is distribution of the product to be distributed and returns by elasticity in contact with these faces when ceases the distribution.

Cependant, dans un tel système de fermeture, le contact entre le bord du manchon et la face de la cloison n'est assuré que par l'élasticité de la zone de bord du manchon et il en résulte fréquemment une étanchéité au repos très insuffisante, quelle que soit la surface de contact entre le bord du manchon et chacune des faces de la cloison, en particulier lorsque le produit distribué est visqueux.However, in such a closure system, the contact between the edge of the sleeve and the face of the partition is only ensured by the elasticity of the edge area of the sleeve and this frequently results in a very insufficient seal at rest, whatever the contact surface between the edge of the sleeve and each of the faces of the partition, in particular when the product dispensed is viscous.

La présente invention a pour but de fournir pour les ensembles de distribution, un système de fermeture qui est parfaitement étanche au repos, c'est-à-dire lorsqu'il n'y a pas distribution de produit, qui ne s'ouvre que sous la pression du produit à distribuer, et qui ne permet pratiquement pas, par lui-même, de reprise d'air. Ce système est, par conséquent, aseptique par lui-même, ce qui n'est pas le cas pour le brevet US-A-4 099 651 précité.The present invention aims to provide for the distribution assemblies, a closure system which is perfectly sealed at rest, that is to say when there is no product distribution, which opens only under the pressure of the product to be dispensed, and which practically does not allow, by itself, air intake. This system is, therefore, aseptic by itself, which is not the case for the patent US-A-4,099,651 mentioned above.

La présente invention a donc pour objet un ensemble de distribution d'au moins un produit fluide, ensemble qui comporte un récipient et une tête de distribution contenant au moins un canal de distribution du (des) produit(s) à distribuer, un système de fermeture étant situé à la partie terminale, s'ouvrant sur l'extérieur du (ou de chaque) canal de distribution, ledit système étant formé par au moins un obturateur qui fait partie d'une pièce en matériau élastiquement déformable de la tête de distribution et par au moins un siège, qui fait partie d'une autre pièce de la tête de distribution, l'(ou les) obturateur(s) étant en contact avec leur siège associé lorsqu'il n'y a pas de distribution, s'écartant dudit siège par déformation élastique sous la pression du produit à distribuer et revenant par élasticité en contact avec ledit siège lorsque cesse la distribution, caractérisé par le fait que l'obturateur est constitué par une pièce élastique, dont une partie est disposée en vis-à-vis de l'ouverture du canal et qui, dans cette zone, s'écarte du siège par élasticité parallèlement à la direction de poussée du produit.The present invention therefore relates to a distribution assembly of at least one fluid product, assembly which comprises a container and a distribution head containing at least one distribution channel for the product (s) to be distributed, a distribution system closure being located at the terminal part, opening on the outside of (or each) distribution channel, said system being formed by at least one obturator which is part of a piece of elastically deformable material of the distribution head and by at least one seat, which is part of another part of the dispensing head, the shutter (s) being in contact with their associated seat when there is no dispensing, s 'spreading from said seat by elastic deformation under the pressure of the product to be dispensed and returning by elasticity in contact with said seat when the dispensing ceases, characterized in that the shutter is constituted by an elastic piece, one of which he part is arranged opposite the opening of the channel and which, in this zone, departs from the seat by elasticity parallel to the direction of thrust of the product.

Il est entendu que l'étanchéité mentionnée dans la définition ci-dessous n'est assurée qu'aux imperfections de réalisation près. Selon l'invention elle doit être suffisante pour empêcher pratiquement toute aspiration d'air à travers le système de fermeture après la fin de la distribution du produit, quelle que soit la viscosité du produit à distribuer. L'étanchéité étant quelque peu fonction de la zone de contact entre l'obturateur et le siège, l'invention, prévoit de choisir une zone de contact ayant une dimension suffisante pour que l'étanchéité soit assurée.It is understood that the tightness mentioned in the definition below is only ensured with production imperfections. According to the invention, it must be sufficient to prevent practically any aspiration of air through the closure system after the end of the dispensing of the product, whatever the viscosity of the product to be dispensed. Since the seal is somewhat a function of the contact area between the shutter and the seat, the invention provides for choosing a contact area having a size sufficient for the seal to be ensured.

Selon la présente invention, le système de fermeture forme donc une valve ou une soupape qui ne peut s'ouvrir que dans un sens : le sens de distribution du produit.According to the present invention, the closure system therefore forms a valve or a valve which can only open in one direction: the direction of distribution of the product.

Le système de fermeture selon l'invention, qui, en pratique, n'est constitué que par une faible zone de contact entre un obturateur en matériau flexible et un siège, a l'avantage de pouvoir s'adapter sur toutes les têtes de distribution, qu'elles soient montées sur des tubes soudés, des distributeurs à piston suiveur ou à poche souple ou sur des flacons rigides. Il peut également facilement être intégré à des têtes de distribution ayant des formes esthétiques très variables. En effet, la pièce flexible comportant l'obturateur et la pièce portant le siège de l'obturateur peuvent avoir des formes diverses.The closure system according to the invention, which, in practice, consists only of a small contact area between a shutter of flexible material and a seat, has the advantage of being able to adapt to all of the dispensing heads. , whether they are mounted on welded tubes, distributors with follower piston or flexible bag or on rigid bottles. It can also easily be integrated with dispensing heads having very variable aesthetic shapes. Indeed, the flexible part comprising the shutter and the part carrying the seat of the shutter can have various shapes.

L'obturateur peut être en toute matière pouvant se déformer élastiquement. Il est, de préférence, en élastomère naturel, synthétique ou thermoplastique. Parmi les élastomères utilisables, on peut citer, par exemple, les copolymères styrène-butadiène, les caoutchoucs nitriles, le polychloroprène ou néoprène, le caoutchouc EPDM, les polyuréthanes, le caoutchouc de silicone et les copolymères éthylène-vinylacétate.The shutter can be of any material that can deform elastically. It is preferably made of natural, synthetic or thermoplastic elastomer. Among the elastomers which can be used, there may be mentioned, for example, styrene-butadiene copolymers, nitrile rubbers, polychloroprene or neoprene, EPDM rubber, polyurethanes, silicone rubber and ethylene-vinyl acetate copolymers.

Le siège, est de préférence, en un matériau rigide.The seat is preferably made of a rigid material.

Avantageusement, le (ou chacun des) obturateur(s) est soumis à l'action d'un organe de contrainte ayant tendance à le (ou les) maintenir appliqué(s) sur le siège avec lequel il(s) coopère(nt) pour assurer l'étanchéité du contact de fermeture.Advantageously, the (or each) shutter (s) is subjected to the action of a constraint member tending to keep it (or them) applied (s) on the seat with which it (s) cooperates (s) to seal the closing contact.

L'organe de contrainte a pour fonction de maintenir l'obturateur appliqué sur le siège au cours du stockage et d'augmenter la pression nécessaire pour obtenir la déformation de l'obturateur. On améliore ainsi l'étanchéité du système de fermeture. Il peut également avoir pour fonction de faciliter le retour de l'obturateur dans sa position de fermeture. En l'absence d'organe de contrainte, il est souvent difficile de maintenir l'étanchéité de la fermeture au cours du stockage avant et après la première utilisation du produit à distribuer.The constraint member has the function of maintaining the shutter applied to the seat during storage and of increasing the pressure necessary to obtain the deformation of the shutter. This improves the tightness of the closure system. It can also have the function of facilitating the return of the shutter to its closed position. In the absence of a restraining member, it is often difficult to maintain the seal of the closure during the storage before and after the first use of the product to be dispensed.

L'organe de contrainte est, plus particulièrement, constitué par un ergot ou bourrelet en substance élastique maintenant la pièce flexible sur l'élément rigide comportant le siège, de façon à s'opposer à la déformation de l'obturateur.The constraint member is, more particularly, constituted by a lug or bead of substantially elastic material holding the flexible part on the rigid element comprising the seat, so as to oppose the deformation of the shutter.

La partie terminale du canal de distribution est, de préférence, délimitée d'une part, par une pièce partiellement en matériau flexible comportant l'obturateur et d'autre part, par une pièce comportant le siège de l'obturateur. Le canal peut être ménagé dans la pièce comportant l'obturateur et/ou dans la pièce comportant le siège. Dans ce cas, le passage du produit, du canal au système de fermeture se fait par une pente, de façon à faciliter l'écoulement du produit, en évitant un effet de seuil. Cette pente est avantageusement située dans le siège. Le canal peut également être délimité par une zone où la pièce comportant l'obturateur et la pièce comportant le siège sont assemblées de façon étanche, par exemple par collage ou à l'aide d'un cordon de soudure.The end part of the distribution channel is preferably delimited on the one hand, by a part partially made of flexible material comprising the shutter and on the other hand, by a part comprising the seat of the shutter. The channel can be formed in the room comprising the shutter and / or in the room comprising the seat. In this case, the passage of the product from the channel to the closure system is by a slope, so as to facilitate the flow of the product, avoiding a threshold effect. This slope is advantageously located in the seat. The channel can also be delimited by an area where the part comprising the shutter and the part comprising the seat are assembled in a sealed manner, for example by gluing or using a weld bead.

La pièce élastique, constituant l'obturateur, fait avantageusement partie d'un tore disposé extérieurement autour de la tête de distribution. Le tore peut faire tout le tour de la tête de distribution ou peut être interrompu et comporter à chaque extrémité un ancrage dans la pièce comportant le siège.The elastic part, constituting the shutter, advantageously forms part of a toroid disposed externally around the dispensing head. The torus can go all the way around the dispensing head or can be interrupted and include at each end an anchorage in the part comprising the seat.

Pour permettre de diriger le flux de produit à la sortie du canal de distribution, la pièce en matériau élastique comporte un canal d'amenée du produit. On peut, également ménager un canal ayant la même fonction dans le siège rigide, en vis-à-vis de la pièce en matériau élastique.To allow directing of the product flow at the outlet of the distribution channel, the piece of elastic material includes a product supply channel. It is also possible to provide a channel having the same function in the rigid seat, opposite the piece of elastic material.

La section droite du tore élastique peut avoir des formes diverses : circulaire, elliptique, triangulaire ou analogue. L'organe de contrainte est avantageusement constitué par un ergot susceptible de s'insérer dans un logement correspondant de la pièce comportant un siège rigide, cet ergot étant disposé du côté opposé au canal d'amenée du produit.The cross section of the elastic torus can have various shapes: circular, elliptical, triangular or the like. The constraint organ is advantageously consisting of a lug capable of being inserted in a corresponding housing of the part comprising a rigid seat, this lug being arranged on the side opposite to the product supply channel.

Le système de fermeture, selon l'invention, peut être utilisé dans de nombreux types de tête de distribution.The closure system according to the invention can be used in many types of dispensing head.

Pour mieux faire comprendre l'objet de l'invention, on va en décrire ci-après, à titre purement illustratif et non limitatif, plusieurs modes de réalisation représentés sur le dessin annexé.To better understand the object of the invention, we will describe below, purely by way of illustration and not limitation, several embodiments shown in the accompanying drawing.

Sur ce dessin :

  • la figure 1 est une vue en coupe axiale d'un ensemble à deux valves formant pompe, où l'obturateur fait partie d'un tore élastique ;
  • la figure 2 est une vue de dessus dudit tore élastique ;
  • la figure 3, enfin, est une vue schématique en coupe axiale d'une tête de distribution où l'obturateur est constitué par un tore .
On this drawing :
  • Figure 1 is an axial sectional view of an assembly with two valves forming a pump, where the shutter is part of an elastic toroid;
  • Figure 2 is a top view of said elastic torus;
  • Figure 3, finally, is a schematic view in axial section of a dispensing head where the shutter is constituted by a torus.

Les figures 1 à 3 représentent des têtes de distribution selon l'invention dans lesquels l'obturateur est une pièce élastique disposée au vis-à-vis de la sortie du canal de distribution et qui s'écarte du siège parallèlement à la poussée du liquide à distribuer.Figures 1 to 3 show dispensing heads according to the invention in which the shutter is an elastic piece disposed vis-à-vis the outlet of the distribution channel and which departs from the seat parallel to the thrust of the liquid to distribute.

La figure 1 représente schématiquement un ensemble de distribution 2501 dont la tête de distribution 2503 forme pompe car elle comporte deux valves. L'ensemble de distribution 2501 comporte une poche souple 2502 protégée par une enceinte rigide 2510 munie d'une ouverture de prise d'air 2510a. La tête de distribution comporte, en premier lieu, une pièce 2504 comportant le siège, en deuxième lieu, une pièce torique 2505 moulée d'une seule pièce avec une lame flexible formant un dôme 2507 et portant un ergot 2508 faisant partie d'une seconde valve 2513, et, en troisième lieu, un couvercle 2506. La pièce 2504 comportant le siège a la forme générale d'un disque fixé sur le bord supérieur de l'enceinte rigide 2510 et elle est munie d'une jupe intérieure cylindrique 2541 sur laquelle est soudée la poche souple 2502. Sur une portion de sa périphérie, elle est creusée d'une rainure 2542 ayant en section la forme d'un segment de cercle dans laquelle débouche un canal radial 2543 creusé dans la pièce 2504. En un point diamétralement opposé à la sortie du canal 2543 la pièce 2504 est creusée par un canal 2544 parallèle à l'axe longitudinal de l'ensemble 2501 qui débouche dans la poche souple 2502 à une extrémité et est en communication avec une échancrure 2545 de la pièce 2504, séparée du canal 2544 par une paroi 2546 parallèle à l'axe de l'ensemble 2501 dont le bord supérieur est en biseau.FIG. 1 schematically represents a distribution assembly 2501, the distribution head 2503 of which forms a pump because it comprises two valves. The distribution assembly 2501 comprises a flexible pocket 2502 protected by a rigid enclosure 2510 provided with an air intake opening 2510 a . The dispensing head comprises, firstly, a piece 2504 comprising the seat, secondly, an O-ring piece 2505 molded in one piece with a flexible blade forming a dome 2507 and carrying a lug 2508 forming part of a second valve 2513, and, thirdly, a cover 2506. The part 2504 comprising the seat has the general shape of a disc fixed on the upper edge of the rigid enclosure 2510 and it is provided with a cylindrical inner skirt 2541 on which the flexible pocket 2502 is welded. On a portion of its periphery, it is hollowed out with a groove 2542 having in section the shape of a segment of a circle into which opens a radial channel 2543 hollowed out in the part 2504. At a point diametrically opposite to the outlet of the channel 2543 the part 2504 is hollowed out by a channel 2544 parallel to the longitudinal axis of the assembly 2501 which opens into the flexible pocket 2502 at one end and is in communication with a notch 2545 of the part 2504, separated from the channel 2544 by a wall 2546 parallel to the axis of the assembly 2501, the upper edge of which is beveled.

Le joint torique 2505 a, en section, la forme d'un cercle muni d'un ergot 2552 au niveau du système de fermeture et il s'emboîte dans la rainure 2542. Le dôme 2507 est situé au-dessus du support 2504 et il définit au-dessus dudit support 2504, un espace interne E qui communique, d'une part, avec le canal 2543 et, d'autre part, avec l'échancrure 2545. La base du dôme 2507 se prolonge du côté opposé à l'ouverture du canal 2543 par une plaque portant un ergot 2508 qui coopère avec la paroi 2546 pour former une valve 2513. Dans cette valve 2513, l'ergot 2508 repose de façon étanche sur la surface du rebord de la paroi 2546. Le couvercle 2506 est fixé sur la périphérie du support 2504 et il est muni d'une ouverture 2561 par laquelle le dôme 2507 fait saillie. Au niveau du tore 2505, le couvercle 2506 est creusé d'une rainure 2562 ayant la forme en section, d'un segment de cercle qui s'ajuste à la rainure 2542 pour former ensemble (en section) un segment de cercle plus étendu. Au niveau de la sortie du canal de distribution 2543, audessus de celui-ci la rainure 2562 et, une fraction de la rainure 2542 sont creusées par un canal d'amenée du produit 2509.The O-ring 2505 has, in section, the shape of a circle provided with a lug 2552 at the level of the closure system and it fits into the groove 2542. The dome 2507 is located above the support 2504 and it defines above said support 2504, an internal space E which communicates, on the one hand, with the channel 2543 and, on the other hand, with the notch 2545. The base of the dome 2507 extends on the side opposite to the opening of the channel 2543 by a plate carrying a lug 2508 which cooperates with the wall 2546 to form a valve 2513. In this valve 2513, the lug 2508 rests in a sealed manner on the surface of the rim of the wall 2546. The cover 2506 is fixed on the periphery of the support 2504 and it is provided with an opening 2561 through which the dome 2507 projects. At the torus 2505, the cover 2506 is hollowed out by a groove 2562 having the shape in section, of a circle segment which adjusts to the groove 2542 to form together (in section) a larger circle segment. At the outlet of the distribution channel 2543, above it the groove 2562 and, a fraction of the groove 2542 are dug by a product supply channel 2509.

L'ensemble 2501 fonctionne de la façon suivante. Lorsque l'utilisateur désire distribuer le produit, il appuie sur le dôme élastique 2507 et fait diminuer l'espace interne E, la valve 2513 étant fermée. Le produit contenu dans cet espace subit une surpression et exerce une poussée par l'intermédiaire du canal 2543 sur le tore 2505. Il provoque le déplacement de ce dernier par élasticité dans le sens de la flèche f2, ce qui ouvre le canal d'amenée 2509 sur l'extérieur. Le produit est distribué. Lorsque l'utilisateur cesse d'appuyer sur le dôme élastique 2511 la poussée du produit à distribuer sur le tore 2505 cesse et celui-ci reprend sa place par élasticité et ferme le canal 2509. Le dôme reprenant sa forme par élasticité, il se produit une dépression dans l'espace E. Cette dépression provoque l'ouverture de la valve 2513, l'ergot 2508 s'écartant par flexion du rebord de la cloison 2546. Du produit contenu dans la poche 2502 est aspiré dans l'espace E par le conduit 2544 et l'échancrure 2545. La tête de distribution est prête pour une nouvelle distribution du produit.The assembly 2501 operates as follows. When the user wishes to distribute the product, he presses on the elastic dome 2507 and reduces the internal space E, the valve 2513 being closed. The product contained in this space undergoes an overpressure and exerts a thrust via the channel 2543 on the torus 2505. It causes the displacement of the latter by elasticity in the direction of the arrow f 2 , which opens the channel of brought 2509 on the outside. The product is distributed. When the user ceases to press on the elastic dome 2511 the pressure of the product to be distributed on the torus 2505 ceases and the latter resumes its place by elasticity and closes the channel 2509. The dome regaining its shape by elasticity, it occurs a depression in the space E. This depression causes the opening of the valve 2513, the lug 2508 deviating by bending from the edge of the partition 2546. The product contained in the bag 2502 is sucked into the space E by the conduit 2544 and the notch 2545. The dispensing head is ready for a new distribution of the product.

La figure 3 représente une tête de distribution 2403 à sortie latérale. La tête de distribution 2403 est constituée par une pièce 2404 comportant le siège 2442 en plastique percée d'un canal de distribution 2441 coudé à angle droit qui s'ouvre dans une rainure 2442 annulaire dont la section a la forme d'une portion de cercle. Dans la rainure est emboîtée une pièce torique en matière flexible 2405 qui fait le tour de la tête de distribution 2403. Au niveau de la sortie du canal de distribution dans la rainure 2442, la pièce torique 2405 forme obturateur et la rainure 2442 forme siège. Au vis-à-vis de la sortie du canal de distribution 2441 la pièce torique 2405 est creusée par un canal d'amenée 2451 qui communique avec le canal de distribution et a une forme telle qu'il puisse diriger vers le haut (sur la figure 3) le flux de produit distribué. Au-dessous de la sortie du canal de distribution, (sur la figure 3), le tore 2405 est muni d'un ergot 2452 qui s'emboîte dans une rainure correspondante de la pièce 2404 et qui constitue l'organe de contrainte. Sur la figure 3, la tête de distribution 2403 est représentée en position de repos, la pièce torique 2405 étant emboîtée dans la rainure 2442 de façon que le canal d'amenée 2451 soit fermé. Lorsque du produit à distribuer pénètre selon la flèche f1 dans le canal de distribution 2441 puis dans le canal d'amenée 2451, il pousse à ce niveau sur le tore 2405 et celui-ci se déforme par élasticité et la partie située au vis-à-vis de la sortie du canal 2441 se déplace selon la flèche f2 jusqu'à ce que le déplacement soit suffisant pour que le canal d'amenée 2451 soit en communication avec l'extérieur.FIG. 3 represents a distribution head 2403 with lateral outlet. The distribution head 2403 consists of a piece 2404 comprising the plastic seat 2442 pierced with a distribution channel 2441 bent at a right angle which opens in an annular groove 2442 whose section has the shape of a portion of a circle . In the groove is fitted a toric piece of flexible material 2405 which goes around the dispensing head 2403. At the outlet of the dispensing channel in the groove 2442, the toric piece 2405 forms a shutter and the groove 2442 forms a seat. Opposite the outlet of the distribution channel 2441 the toric piece 2405 is hollowed out by a supply channel 2451 which communicates with the distribution channel and has a shape such that it can direct the flow of dispensed product upwards (in FIG. 3). Below the outlet of the distribution channel, (in FIG. 3), the torus 2405 is provided with a lug 2452 which fits into a corresponding groove in the part 2404 and which constitutes the constraint member. In FIG. 3, the dispensing head 2403 is shown in the rest position, the toric piece 2405 being fitted into the groove 2442 so that the supply channel 2451 is closed. When the product to be dispensed enters, according to the arrow f 1, into the distribution channel 2441 and then into the supply channel 2451, it pushes at this level on the torus 2405 and the latter deforms by elasticity and the part situated at the screw- with respect to the outlet of the channel 2441 moves according to the arrow f 2 until the displacement is sufficient for the supply channel 2451 to be in communication with the outside.

Claims (9)

  1. A unit (2501) for the dispensing at least one fluid product, which unit comprises a container (2502) and a dispensing head (2503) containing at least one dispensing duct (2543) for the product or products to be dispensed; a closing system (F) being situated at the end portion, opening towards the outside of the (or each) dispensing duct (2543); the said system being formed by an obturator (2505) which forms part of a component (2505) made of an elastically deformable material of the dispensing head, and by at least one seat (2542) which forms part of another component (2504) of the dispensing head; the obturator or obturators (2505) being in contact with their associated seat when no dispensing takes place, moving away from the said seat (2542) by elastic deformation under the pressure of the product to be dispensed and returning by resilience into contact with the said seat when the dispensing stops; characterized in that the obturator is constituted by an elastic component (2405, 2505) a portion whereof is disposed opposite the opening of the duct (2543) and which in this zone moves away from the seat by elasticity parallel to the direction of the thrust of the product.
  2. A unit according to claim 1, characterized in that the elastic component (2405) forms part of a torus disposed round the dispensing head (2403).
  3. A unit according to claim 2, characterized in that the torus (2405) is interrupted and has, at each end, an anchorage in the part comprising the seat.
  4. A unit according to one of claims 1 to 3, characterized in that the elastic component (2405) comprises a feeder duct (2451) for the product.
  5. A unit according to one of claims 1 to 3, characterized in that a feeder duct (2562) is arranged in the other rigid component (2504) comprising the seat opposite the elastic element (2505).
  6. A unit according to one of claims 1 to 5, characterized in that the (or each of the) obturators (2505) is subjected to the action of a constraining element (2552) having a tendency to keep it (or them) applied to the seat (2542), wherewith it (or they) cooperate(s) to ensure the seal of the closing contact.
  7. A unit according to claim 6, characterized in that the constraining element is constituted by a catch (2452, 2552) capable of being inserted in a corresponding recess of the rigid seat (2404, 2504).
  8. A unit according to claim 6 or 7, characterized in that the constraining element (2552) is made of an elastic material.
  9. A unit according to claim 8, characterized in that the constraining element is constituted by a catch (2552) made of an elastic material limiting the displacement of the obturator.
EP92203941A 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics Expired - Lifetime EP0549050B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR898910000A FR2650255B1 (en) 1989-07-25 1989-07-25 DISPENSING ASSEMBLY OF ONE OR MORE PRODUCT (S) IN THE FORM OF A CREAM, LIQUID OR POWDER, ESPECIALLY COSMETIC PRODUCTS
EP90400269 1990-02-01
FR8910000 1990-02-01
EP90400269 1990-02-01
EP90402098A EP0410858B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP90402098.9 Division 1990-07-20

Publications (2)

Publication Number Publication Date
EP0549050A1 EP0549050A1 (en) 1993-06-30
EP0549050B1 true EP0549050B1 (en) 1996-01-03

Family

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Application Number Title Priority Date Filing Date
EP92203940A Expired - Lifetime EP0549049B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product
EP92203941A Expired - Lifetime EP0549050B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics
EP92203939A Expired - Lifetime EP0540129B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing a fluid product such as cosmetics or pharmaceutics
EP90402098A Expired - Lifetime EP0410858B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP92203940A Expired - Lifetime EP0549049B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP92203939A Expired - Lifetime EP0540129B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing a fluid product such as cosmetics or pharmaceutics
EP90402098A Expired - Lifetime EP0410858B1 (en) 1989-07-25 1990-07-20 Assembly for dispensing at least one fluid product such as cosmetics or pharmaceutics

Country Status (7)

Country Link
US (4) US5301850A (en)
EP (4) EP0549049B1 (en)
JP (2) JPH0755715B2 (en)
AT (4) ATE134961T1 (en)
CA (1) CA2021856C (en)
DE (4) DE69007894T2 (en)
ES (4) ES2087439T3 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1790416A1 (en) * 2005-11-23 2007-05-30 Kanfer, Joseph S. Bellows pump mechanism

Also Published As

Publication number Publication date
CA2021856A1 (en) 1991-01-26
EP0540129B1 (en) 1996-03-06
ES2050976T3 (en) 1994-06-01
DE69027051D1 (en) 1996-06-20
EP0410858A2 (en) 1991-01-30
US5379919A (en) 1995-01-10
EP0549049A1 (en) 1993-06-30
DE69025774T2 (en) 1996-11-07
DE69007894T2 (en) 1994-11-03
JPH0755715B2 (en) 1995-06-14
ES2083075T3 (en) 1996-04-01
CA2021856C (en) 1999-06-15
ATE132454T1 (en) 1996-01-15
JPH03148455A (en) 1991-06-25
EP0410858B1 (en) 1994-04-06
DE69024668D1 (en) 1996-02-15
ATE103874T1 (en) 1994-04-15
ES2087439T3 (en) 1996-07-16
US5301850A (en) 1994-04-12
US5388728A (en) 1995-02-14
DE69027051T2 (en) 1997-01-16
ES2084268T3 (en) 1996-05-01
ATE138034T1 (en) 1996-06-15
EP0549050A1 (en) 1993-06-30
ATE134961T1 (en) 1996-03-15
EP0540129A1 (en) 1993-05-05
DE69024668T2 (en) 1996-09-12
DE69025774D1 (en) 1996-04-11
US5413250A (en) 1995-05-09
JP2554314B2 (en) 1996-11-13
EP0410858A3 (en) 1991-05-08
EP0549049B1 (en) 1996-05-15
JPH07291331A (en) 1995-11-07
DE69007894D1 (en) 1994-05-11

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