EP1279607B1 - Sprühvorrichtung für ein flüssiges Mittel - Google Patents

Sprühvorrichtung für ein flüssiges Mittel Download PDF

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Publication number
EP1279607B1
EP1279607B1 EP02291675A EP02291675A EP1279607B1 EP 1279607 B1 EP1279607 B1 EP 1279607B1 EP 02291675 A EP02291675 A EP 02291675A EP 02291675 A EP02291675 A EP 02291675A EP 1279607 B1 EP1279607 B1 EP 1279607B1
Authority
EP
European Patent Office
Prior art keywords
reservoir
plunger tube
wall
product
air passage
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
EP02291675A
Other languages
English (en)
French (fr)
Other versions
EP1279607A1 (de
Inventor
Florent Duqueroie
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
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP1279607A1 publication Critical patent/EP1279607A1/de
Application granted granted Critical
Publication of EP1279607B1 publication Critical patent/EP1279607B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/32—Containers adapted to be temporarily deformed by external pressure to expel contents
    • 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
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/042—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid

Definitions

  • the present invention relates to a device for spraying a fluid product according to the preamble of claim 1.
  • the invention relates to a miniature spray suitable for packaging cosmetic products, especially perfumes.
  • the samples are not generally intended for sale, their manufacturing cost must be as low as possible. It is therefore important to have devices whose parts are easily achievable in large series and whose assembly can be performed in a simple manner. In addition, they must be able to generate a spray whose quality is as good as possible, and whose characteristics are as constant as possible.
  • One solution for producing such packages at a cost as low as possible would be to make the tank in the form of a pod of the type that is commonly used for the packaging of certain physiological serums, eye drops or makeup removers.
  • a pod is made in one piece with a spray orifice whose opening is caused by tearing a tip, in particular by a twist of the tip around the axis of the orifice.
  • the filling of such a device can be done via the open bottom of the tank. The latter is then closed, in particular by welding, in the manner of a tube.
  • the welding operation after filling the tank, especially when it is a highly volatile product such as a perfume, is not without problems. Under the effect of heat, the product may evaporate, deteriorate or even ignite.
  • US 2,571,504 A discloses a spraying device according to the preamble of claim 1.
  • the device described in these documents comprises a deformable wall container which contains a liquid product to be sprayed.
  • the container is closed by a spray head provided with a spray orifice which communicates with the interior of the container via a dip tube.
  • An air inlet is provided in the upper part of the tube.
  • the product then rises in the dip tube.
  • the compressed air also tends to escape from the container and enters the dip tube through the air inlet.
  • a mixture of air and product is then obtained in the tube before spraying.
  • the deformation of the wall is linear, that is to say that the reduction of the internal volume of the container is proportional to the pressure exerted on the wall to deform.
  • the user can then deform the wall by exerting a slight pressure on it so that the air is weakly compressed. At first, there is not enough energy for the air to push the product into the dip tube. However, the air tends to escape from the container so that only air is sprayed.
  • a wall having a threshold of resistance to deformation means a wall configured in such a way that its deformation does not depend linearly on the pressure exerted on it to deform it, but requires the passing of a threshold.
  • the pressure exerted by a user on the actuating wall causes, before reaching the threshold pressure, namely, the pressure to overcome said predetermined threshold of resistance to deformation of said actuating wall, a deformation of the wall which does not significantly reduce the internal volume of the tank, but which allows to accumulate energy so that, when the pressure exerted by the user on the wall reaches the threshold pressure, the wall deforms brutally.
  • the volume inside the tank is then reduced significantly so that an overpressure is created suddenly inside the tank. This overpressure makes it possible to push the product with enough energy into the dip tube to bring it up to the spray orifice so as to generate a spray of good quality.
  • the device comprises a dispensing nozzle attached to the reservoir, in which the spray orifice is formed, the channel connecting the second end of the dip tube to the spray orifice being formed in said nozzle.
  • the device comprising two main parts is thus simple to perform by forming, on the one hand, the reservoir and, on the other hand, the spray tip serving as a stopper.
  • the dip tube can be made in one piece with the tip.
  • the second end of the dip tube is fixedly mounted in a cavity formed in said tip being for example forcefully inserted.
  • the air passage is formed in the dispensing nozzle. It opens, on the one hand, inside the tank and, on the other hand, in the channel. Advantageously, it opens into the channel at the level of the second end of the dip tube.
  • the air passage is then for example constituted by at least one groove formed on the wall of the cavity.
  • the air passage is an orifice provided in the side wall of the plunger tube, towards its second end.
  • the spray orifice may be formed in the axis of the dip tube so as to obtain a spray in the axis.
  • the spray orifice is angularly offset relative to the axis of the dip tube.
  • the device being used preferably head up with the substantially vertical tube, it is thus possible to obtain a spray that is not vertical, and in particular a horizontal spray that facilitates the application of the product on the skin by providing a spray orifice offset by 90 ° from the axis of the tube.
  • the actuating wall is shape memory, that is to say that it is configured to resume its initial shape by elastic return when said pressure ceases.
  • the device can then be used several times consecutively.
  • the actuating wall has a substantially convex profile in its undeformed position, particularly in the form of a dome, and a substantially concave profile in its deformed position when the pressure is greater than or equal to the threshold pressure.
  • a substantially convex profile in its undeformed position, particularly in the form of a dome, and a substantially concave profile in its deformed position when the pressure is greater than or equal to the threshold pressure.
  • the actuating wall of the reservoir is formed of a thermoplastic material, in particular a polyethylene, a polypropylene, a polyethylene terephthalate, a polyethylene naphthalate, a polyacrylonitrile, a polyoxymethylene, a polyvinyl chloride, or a mixture of these materials.
  • the device is particularly suitable for packaging and spraying a sample dose of a cosmetic product, especially a perfume.
  • the device shown in an overall view in FIG. 1 and in sectional view in FIGS. 2 and 3 comprises a reservoir 10 with a deformable wall, containing the product P to be dispensed, and air, on which a nozzle 20 is mounted in which is formed a spray orifice 21.
  • the spray orifice 21 is in communication with the interior of the tank via a dip tube 30. By exerting pressure on the tank wall, it creates an overpressure to the inside of the reservoir which causes the product to be sprayed through the orifice 21, via the plunger tube 30.
  • the reservoir 10 is configured in the form of a drop of water, but it is obvious that it may have any other shape allowing the deformation of at least one of its walls. It is obtained by molding, especially by injection molding, for example in one piece, a thermoplastic material.
  • the reservoir is for example formed of a polyethylene, a polypropylene, a polyethylene terephthalate, a polyethylene naphthalate, a polyacrylonitrile, a polyoxymethylene, a polyvinyl chloride, or a mixture of these materials.
  • the tank wall comprises a zone 11 of convex shape which is deformable when pressure is exerted on it. This wall is shape memory so that it resumes its initial position when ceasing to exert pressure on it.
  • the reservoir 10 has a flat wall 12.
  • This configuration of the reservoir makes it easy to identify the area on which the user must exert pressure so that the operation of the device is made obvious.
  • this configuration makes it easy to grasp the device between two fingers, for example by placing the thumb on the flat wall 12 and the index on the deformable zone 11 or vice versa. The user thus exerts pressure on the actuating wall with his index finger or his thumb so that he can easily spray the product.
  • the reservoir 10 terminates in an open neck 13 in which the spray tip 20 is sealingly mounted.
  • the tip 20 comprises, for example, an annular groove 24 intended to cooperate with an annular projection 14 formed on the inner wall of the neck. 13 of the tank.
  • the plunger tube 30, of axis X is formed in one piece with the endpiece 20.
  • the endpiece 20 and the plunger tube 30 are for example obtained by molding in one piece, a thermoplastic material, especially polyethylene or polypropylene.
  • the first end 30a of the tube opens substantially to the bottom of the tank so as to be immersed in the product to be sprayed.
  • the second end 30b is extended by the endpiece 20 in which is formed a channel 22.
  • the channel 22 extends the conduit
  • the channel 22 is formed along the X-axis of the tube and extends beyond the neck of the tank, terminating in a cylindrical spray head 25 in which the tube is formed.
  • the orifice 21 is advantageously formed in the side wall of the spray head, along an axis perpendicular to the axis X of the tube.
  • An orifice 41 is formed in the side wall of the dip tube 30, towards its second end 30b, namely just below the nozzle 20.
  • FIG. 4 another embodiment of the spraying device can be seen.
  • the reservoir 10 terminates in an open neck 13, threaded on its outer surface.
  • the tip 20 is screwed onto the neck of the reservoir being disposed in the extension of the tank wall so as to form the end of the drop of water.
  • the rest of the tank is identical to that just described in accordance with Figures 1 to 3.
  • the tip 20 is provided with a fixing skirt 26, threaded on its inner surface to cooperate with the neck 13 of the reservoir 10.
  • a cylindrical sealing skirt 27 is provided to come housed inside the neck 13 of the tank and thus ensure the seal between the opening of the neck 13 and the tip.
  • a cylindrical cavity 23 is provided in the nozzle for forcibly receiving the end 30b of the dip tube.
  • the channel 22 communicating the dip tube and the spray orifice 21 opens into the bottom of the cavity 23.
  • the channel 22 has a portion 22a formed in the X axis of the tube and a portion 22b perpendicular to the X axis and which opens onto the spray orifice 21.
  • the channel is formed entirely in the X axis, as in the variant of this embodiment shown in Figure 7, so as to generate a spray along the X axis.
  • a groove 42 is formed on the wall of the cavity 23 over its entire axial height and extends into the bottom of the cavity so as to open between the open end of the tube and the channel 22.
  • a second groove 42 diametrically opposite the first is formed on the wall of the cavity.
  • the two grooves 42 extend in the bottom of the cavity over its entire cross section. These grooves 42 are provided to ensure the arrival of air in the product from the tube, before spraying.
  • the reservoir is configured to generate a spray of good quality.
  • the deformable zone 11 has a predetermined threshold of resistance to deformation below which the wall deforms slightly and beyond which, the wall is deformed sharply to present a concave profile as shown in FIG.
  • This threshold is determined according to the geometry of the actuating wall but also the nature of the material used to form this wall and finally the thickness of the wall.
  • the reservoir can move from a first convex position corresponding to its undistorted position to a second concave position corresponding to its deformed position. This second position is pre-established, again depending on the geometry of the wall.
  • the rest of the tank is substantially not deformed so that when the actuating wall is deformed, the interior volume of the tank decreases.
  • the air in the tank is then compressed and an overpressure is created inside the tank.
  • this excess pressure being created very abruptly when crossing the threshold, the product is suddenly pushed inside the dip tube, by its end 30a at the same time that the air is introduced through the orifice 41 or the groove 42, so that a product-air mixture is formed in the dip tube and / or in the channel 22.
  • the resulting mixture is then sprayed through the orifice 21.
  • a reservoir 10 made of polyethylene terephthalate (PET) is used.
  • the wall of the reservoir comprises a deformable zone 11 which in the undeformed position has a convex profile which becomes concave in the deformed position.
  • the deformable zone 11 in the undeformed state is substantially a sphere portion which has a radius of curvature of the order of 50 mm.
  • the deformable wall has a thickness of about 0.3 mm.
  • the reservoir In the undeformed state, the reservoir has a volume of 7.5 ml.
  • the reservoir has a deformable volume of 0.5 ml so that, in the concave position of the actuating wall, the volume of the reservoir is 7.0 ml.

Landscapes

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

Claims (14)

  1. Vorrichtung zum Sprühen eines fluiden Produkts, die ein Reservoir (10) aufweist, das das Produkt und Luft enthält, wobei das Reservoir (10) eine Wand besitzt, die mindestens eine verformbare Zone (11) hat, wobei die Vorrichtung ein Tauchrohr (30) aufweist, von dem erstes Ende (30a) sich in der Nähe des Bodens des Reservoirs befindet, und von dem ein zweites Ende (30b) insbesondere über einen Kanal (22) mit einem Sprühloch (21) in Verbindung steht, das in der Lage ist, das Produkt als Reaktion auf einen auf die verformbare Zone (11) ausgeübten Druck zu sprühen, wobei ein Luftdurchlass (41; 42) vorgesehen ist, um es zumindest einem Teil der im Reservoir enthaltenen Luft zu ermöglichen, sich mit dem vom Tauchrohr (30) kommenden Produkt in der Nähe von dessen zweitem Ende (30b) zu vermischen, wobei ein Ausgabeaufsatz (20) am Reservoir (10) befestigt ist, in dem das Sprühloch (21) ausgebildet ist, wobei der Kanal (22), der das zweite Ende (30b) des Tauchrohrs (30) mit dem Sprühloch (21) verbindet, im Aufsatz (20) ausgebildet ist, dadurch gekennzeichnet, dass die verformbare Zone (11) eine derartig vorbestimmten Widerstandsschwelle gegen die Verformung besitzt, dass, ehe der ausgeübte Druck einen Wert erreicht, der es ermöglicht, die vorbestimmte Widerstandsschwelle gegen die Verformung zu überwinden, das Innenvolumen des Reservoirs nicht wesentlich verringert wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das zweite Ende (30b) des Tauchrohrs (30) fest in einen im Aufsatz ausgebildeten Hohlraum (23) montiert ist.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Tauchrohr (30) aus einem Stück mit dem Aufsatz (20) hergestellt wird.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Luftdurchlass (42) im Ausgabeaufsatz (20) ausgebildet ist.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Luftdurchlass (42) einerseits im Inneren des Reservoirs (10) und andererseits im Kanal (22) mündet.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Luftdurchlass (42) in Höhe des zweiten Endes (30b) des Tauchrohrs (30) in den Kanal (22) mündet.
  7. Vorrichtung nach den Ansprüchen 2 und 6, dadurch gekennzeichnet, dass der Luftdurchlass (42) aus mindestens einer Kehle besteht, die auf der Wand des Hohlraums (23) ausgebildet ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Luftdurchlass (41) ein Loch ist, das in der Seitenwand des Tauchrohrs (30) in der Nähe seines zweiten Endes (30b) vorgesehen ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Sprühloch (21) in der Achse X des Tauchrohrs (30) ausgebildet ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Sprühloch (21) bezüglich der Achse X des Tauchrohrs (30) versetzt ist.
  11. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungswand (11) so konfiguriert ist, dass sie durch elastische Rückstellkraft ihre Ursprungsform wieder einnimmt, wenn der Druck endet.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die Betätigungswand (11) in ihrer nicht verformten Stellung ein im Wesentlichen konvexes Profil hat, insbesondere in Form einer Kuppel, und in ihrer verformten Stellung ein im Wesentlichen konkaves Profil hat, wenn der Druck höher als der oder gleich dem Druck ist, der es ermöglicht, die vorbestimmte Widerstandsschwelle gegen die Verformung der Betätigungswand (11) zu überwinden.
  13. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungswand (11) des Reservoirs aus einem thermoplastischen Material geformt wird, insbesondere einem Polyethylen, einem Polypropylen, einem Polyethylenterephthalat, einem Polyethylennaphtalat, einem Polyacrylnitril, einem Polyoxymethylen, einem Polyvinylchlorid, oder einer Mischung dieser Materialien.
  14. Verwendung einer Vorrichtung nach einem der vorhergehenden Ansprüche zur Verpackung und zum Sprühen einer Probedosis eines kosmetischen Produkts, insbesondere eines Parfüms.
EP02291675A 2001-07-25 2002-07-04 Sprühvorrichtung für ein flüssiges Mittel Expired - Lifetime EP1279607B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0109932A FR2827840B1 (fr) 2001-07-25 2001-07-25 Dispositif de pulverisation d'un produit fluide
FR0109932 2001-07-25

Publications (2)

Publication Number Publication Date
EP1279607A1 EP1279607A1 (de) 2003-01-29
EP1279607B1 true EP1279607B1 (de) 2006-09-13

Family

ID=8865883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02291675A Expired - Lifetime EP1279607B1 (de) 2001-07-25 2002-07-04 Sprühvorrichtung für ein flüssiges Mittel

Country Status (6)

Country Link
US (1) US6860404B2 (de)
EP (1) EP1279607B1 (de)
AT (1) ATE339358T1 (de)
DE (1) DE60214631T2 (de)
ES (1) ES2271202T3 (de)
FR (1) FR2827840B1 (de)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101613005B (zh) * 2009-07-06 2011-08-17 章泽宏 瓶结构

Also Published As

Publication number Publication date
DE60214631T2 (de) 2007-10-04
ATE339358T1 (de) 2006-10-15
ES2271202T3 (es) 2007-04-16
US6860404B2 (en) 2005-03-01
DE60214631D1 (de) 2006-10-26
US20030075554A1 (en) 2003-04-24
FR2827840B1 (fr) 2003-09-26
EP1279607A1 (de) 2003-01-29
FR2827840A1 (fr) 2003-01-31

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