EP1084067B1 - Bombe a aerosol rechargeable plusieurs fois, dispositif pour remplir de tels recipients et procede permettant de les produire - Google Patents

Bombe a aerosol rechargeable plusieurs fois, dispositif pour remplir de tels recipients et procede permettant de les produire Download PDF

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Publication number
EP1084067B1
EP1084067B1 EP98936090A EP98936090A EP1084067B1 EP 1084067 B1 EP1084067 B1 EP 1084067B1 EP 98936090 A EP98936090 A EP 98936090A EP 98936090 A EP98936090 A EP 98936090A EP 1084067 B1 EP1084067 B1 EP 1084067B1
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EP
European Patent Office
Prior art keywords
piston
valve
spray
filling
filler
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
EP98936090A
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German (de)
English (en)
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EP1084067A1 (fr
Inventor
Hermann Runge
Manfred Stadler
Werner Massen
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.)
EBB Ingenieurgeschellschaft
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EBB Ingenieurgeschellschaft
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Publication of EP1084067A1 publication Critical patent/EP1084067A1/fr
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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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/42—Filling or charging means
    • B65D83/425—Delivery valves permitting filling or charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0838—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/64—Contents and propellant separated by piston

Definitions

  • the invention relates to repeatedly refillable spray cans with a cylindrical Body and tapered neck part, which by a spray valve Valve plate is closed, filled into the can under pressure using the spray becomes.
  • the invention further relates to a device for filling and a method for making such cans.
  • Spray cans in disposable or disposable design are very common and serve for the absorption of various spray liquids.
  • the disadvantage of such cans is that they must be disposed of after being emptied, with one large number of these disposable cans, the propellant gas filling is environmentally harmful.
  • Reusable cans are also known which have a stable and heavy metal body have and which are designed for very high pressures.
  • the fittings of such Spray cans are usually made of solid brass and are complex, so that due to the high production costs, the consumer often lacks the incentive to change from a disposable can to an expensive reusable can.
  • Reusable cans are acceptable in terms of expenditure, is economical Use in the way that the empty cans are collected, transported to a filling station, filled there by filling systems and transported back to the customer must, which is associated with a considerable cost and time, so that overall, the operation of such reusable cans is not, or hardly, at all is competitive.
  • EP 0 078 936 B1 describes a pressure can for dispensing assembly foams, consisting of a foaming agent and a propellant known.
  • the can includes an inverted bottom, a dome-like upper part with a closure for deployment of the foaming agent through a valve and a cylinder, in the cylinder wall flying piston is provided.
  • the foaming agent filling is through Piston top, an upper cylinder length, the dome and the closure enclosed.
  • the propellant is in one of the piston, a lower cylinder length and the can bottom arranged propellant gas space arranged.
  • the can bottom takes a one-way valve on.
  • the piston floats on the propellant gas filling.
  • the foaming agent receiving space has a closure with a rubber seal of a valve.
  • the valve body is tubular and has a valve disk at the inner end closed, which lies on the internal pressure against the rubber seal. Will the If the valve body tilts and the valve disk is lifted, the contents of the can appear through one or more openings to the outside.
  • the blowing agent is over from below a radial opening and the valve inserted.
  • a cap is provided on the valve insert (inner seal) as an outer seal. The cap is given an annular rubber seal.
  • blowing agent used in such a pressure can in the form of a propellant is an environmentally harmful propellant gas conventionally used in this technique that with such a can the problems encountered with conventional propellants cannot be eliminated. Furthermore, the can is not for refilling designed so that those occurring with the disposal of such cans Problems cannot be solved.
  • a pressure can with a foil bag which consists of a cylindrical container with a bottom part and a head part with a valve. In the lower area, a foil bag is arranged below a piston.
  • the foil bag contains the propellant.
  • This propellant gas is enclosed in a solid or liquid state in a diffusion-tight manner in the film bag and is, for example, CO 2 .
  • the piston can be a lamella piston in the manner of a labyrinth seal, the lamellae being filled with sealing or sealing liquid. However, it can also be sealed against the can wall using an O-ring seal.
  • Such a pressure cell also works with non-environmentally compatible propellant gas and cannot be refilled.
  • the object of the invention is a spray can designed as a monoblock can
  • spray can also includes can-like in the context of the present invention or bottle-like spray containers, so that in the description below and in the claims are spoken only of "cans") of the generic type, that it can be refilled repeatedly and in an empty state at any time ready to fill, i.e. can be filled with filler that a propellant is used at any time and is available at low cost, and it is environmentally friendly and non-flammable is.
  • Another object of the invention is a device and a method for the first time and continuously filling these cans in a particularly simple manner create the possibility of individual filling, especially for individual bottlers to give such cans.
  • this object is achieved in that in the cylindrical part a piston is arranged inside the can, which is assigned to the inside wall of the can Seals, the space formed below the piston with compressed air which is filled by the top of the piston, the bottom of the valve plate and the upper inner wall of the can formed space contains the fluid to be sprayed, the Spray valve is integrated in the valve plate base, and a rubber valve in the piston on the the upper side facing the fluid to be sprayed is arranged.
  • Such a spray can is preferably made by a method according to claim 7 manufactured.
  • a device for filling such spray cans is according to the features of claim 8 executed. Further refinements of the invention are the subject of subclaims.
  • the piston assembly is inserted into the spray can before the head or neck of the can is formed, which is arranged so as to be movable and movable in the can is, and its position by the pressure of acting as a blowing agent Compressed air and the back pressure of the spray in the form of the filling medium determined is.
  • the space between the piston and the can bottom is closed.
  • This space is provided with a valve on the top of the piston is arranged. Is this room filled with compressed air when activated for the first time the can is closed, the valve opening is closed and remains closed, so that the space between the piston and valve plate is filled with the filling medium becomes.
  • the pressure ratio selected on both sides of the pressure piston so that the piston is approximately in the middle is set in relation to the can height and the air pressure is sufficiently high is that even when the can is almost empty, i.e. when the can filling is almost spraying the rest can be sprayed with sufficient pressure.
  • the piston within the can is designed so that a circumferential direction on its underside of the piston skirt provided an annular sealing lip is directed downwards and outwards, so that due to the pressure exerted by the Compressed air is exerted upwards on the piston, the sealing lip spreads and so that the sealing effect on the inner jacket of the can is strengthened.
  • a corresponding annular sealing lip is spaced from this sealing lip provided that runs upwards and outwards and that due to the Pressure effect of the spray between the valve disc and piston spread outwards which results in an increased seal on the inner wall of the can so that it is ensured that spray does not pass the piston even under pressure can flow down.
  • the inner wall of the can and / or the peripheral surface of the piston especially in the area of the sealing lips with a layer of sealing material, e.g. Provided with Teflon; furthermore are the sealing lips preferably designed as an elongated lip seal to achieve the sealing effect to improve.
  • the piston points in the upper, facing the valve plate Area a shape that corresponds to the inside of the can's neck and is curved at the top and in the inner area according to the shape of the valve plate is cup-shaped, so that the valve plate with spray valve in this cup shape can be included.
  • the piston is preferably hollow and has stiffeners, namely an inner cylindrical hub and from this hub web-shaped walls running radially to the outer jacket. It usually exists made of plastic, but can also be made of metal, the sealing lips can also consist of plastic in the case of a plastic version or are optionally designed as rubber seals, as is the case for a metal version true.
  • the cans are filled with a device that has a frame on its The refill can or bottle is placed in a defined position.
  • the frame has a particularly electro-hydraulically driven above the can Piston with a cylindrical vessel that contains the one to be placed in the refill can Filling quantity contains, as well as a filling needle at the lower end, which the spray valve of the socket underneath is assigned exactly and which is activated when the electrohydraulic filling piston presses against the spray valve and this for filling opens.
  • the filling material is taken from a storage container via a suction line introduced into the filling container in which the filling piston is arranged, with each dispensed volume of spray is the exact amount that goes into the refill to be filled in during a filling.
  • a check and pressure relief valve is provided, which is designed so that during a filling movement of the piston, the filling liquid does not enter the suction line, but is only introduced into the refill can, and further so that with a corresponding The refill can cannot be overfilled.
  • the refill can is in the form of a seamless or a monoblock can or Bottle made of aluminum or plastic. So that the weight can be low being held.
  • the agent to be sprayed can be any fluid, for example in the form technical liquids, such as lubricating oils etc., spray agents, such as those used for hair care be used, high or low viscosity creams, foams (with less Pressure) and the like.
  • the spray can or Spray bottle can be refilled any number of times that when refilling the spray Refilling the propellant completely eliminates the use of air as the propellant that is available everywhere and free of charge that the can or bottle is environmentally friendly is because on the one hand it can be filled repeatedly and on the other hand as Blowing air is used that is completely harmless, so that the filling costs are crucial can be reduced, and that an air connection for filling a propellant in a filling station using conventional methods.
  • individual fillers, spray cans or spray bottles themselves and to be repeatedly filled individually on the spot so that e.g. in a hair salon empty spray cans easily, quickly and inexpensively refilled and so that can be used repeatedly. Because the bottle only after Inserting the piston is flared, it can not be seen from the outside that it is is a spray bottle. which are different from conventional spray bottles different.
  • Another, decisive advantage of the invention results from the fact that the Compressed air-filled space of the can, which is completely closed in the floor area below of the piston filled unchanged during the entire service life of the can remains, so that the compressed air once filled in and thus also the one used for this Energy is retained while the fluid to be sprayed is released after dispensing the spray can is refilled again and again. If the spray can is disposed of, it flows Compressed air outside and is free from the surrounding atmosphere without any harmful Environmental impact added.
  • a filling container 6 On a frame 1 with a vertical stand 2 and a base plate 3 are a upper arm 4 and a lower arm 5 attached, between which a filling container 6 is arranged for receiving the material to be filled.
  • the container receives a piston 7.
  • a hand lever (dashed) is indicated, which instead of a piston drive can alternatively be used for a hand-held device.
  • the filling volume of the container 6 is in accordance with the batch to be dispensed Designed spray.
  • Fig. 1 shows with 7 the upper position of the piston, the electro-hydraulic can be driven, and with 8 its lower piston position.
  • the electro-hydraulic can be driven, and with 8 its lower piston position.
  • At the a filling needle 9 is attached, with the help of which the Transfer of the spray is made.
  • the spray is made from a (not shown), e.g.
  • a supply container via an intake line 10 and a check and pressure relief valve 11 connected to the lower end of the container 6, so that in preparation for a filling process the container 6 below the in piston 7 located in its upper position is completely filled. That volume of spraying agent is placed in the refill box 12 placed on the base plate 3 the pressure effect of the piston 7 is filled.
  • the can 12 has a bottom 13, which is locked on the base plate 3 so that the central axis 14 of the can 12 with the Central axis 15 of the filling piston 7 coincides.
  • the applied pressure is on the respective materials to be filled and the cans to be filled are adjustable.
  • the required filling quantity can be checked in advance
  • the flask is temporarily stored and then introduced into the can in portions. In order to can be any tin cans, bottles, aluminum pressure vessels and. the like. easily and fill in a particularly simple manner.
  • a can piston 16 (preferably made of plastic) is arranged in the refill can 12, has the circular cross section and the sealing along the cylindrical Part of the inner circumference of the can 12 is movable in the axial direction 14. He has one annular section 17, the outer periphery of which has a circumferential seal.
  • the can neck 18 of the can 12 is dome-like to the inside of an opening of the can shaped, which has a valve plate 19 which closes the can opening.
  • a spray valve 20 is arranged in the form of a mother valve.
  • At 21 is denotes the upper deep-drawn piston rim of the piston 16, which has an opening 22 for receiving a valve 23 which may be of conventional design can, e.g.
  • the Ring seal 17 of the piston 16 has, as shown in Fig. 2, a lower annular Lip seal 24, the lip of which is directed downwards and outwards and through the compressed air filling 26, which exerts a pressure in the can space, to the outside spread and thus pressed into reinforced contact with the inner surface of the refill 12 becomes. Accordingly, the piston 16 has an upper lip seal 25 which is directed upwards and outwards and by the pressure of the spray 27 over the piston 16 is pressed down and out, so that this lip seal comes under pressure on the inner surface of the refill can 12.
  • the piston 16 within the refill can 12 is hollow and has stiffening, radially extending web walls and a cylindrical or hub-shaped part both of which are not shown. This gives the piston high rigidity and low weight at the same time.
  • FIG. 2 shows the monoblock box 30 in its initial state; their inner rim is seamless and has a Teflon coating 28.
  • the tubular Cylinder 30 with integrated bottom 31 is open at the upper end 32, so that the piston 16 can be inserted into the cylinder (as shown in Fig. 3).
  • the head portion of the cylinder 30 (as in Fig. 4) formed into a dome 33 with an opening 34, the peripheral edge is flanged at 35.
  • the can 30 is then compressed air over a filling needle 36 filled, which is filled through the valve 23 in the cylinder.
  • the valve 23 is e.g.
  • valve plate 37 with valve 38 corresponds to the valve plate 19 with valve 20 of FIG. 1 and with the flanged peripheral edge 35 the can clinks. So that the space between the valve plate 37 and piston top fixed and sealed. Via a filling mandrel 39 of a fluid filling device 40 the spray is introduced into this spray chamber 41 and due to the applied pressure, the piston 16 is down against the pressure effect of the Compressed air filling pressed.
  • the valve 38 which is integrated in the valve plate 37, is a spray valve without stem, which receives a compression spring 43 in a housing 42.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Vacuum Packaging (AREA)
  • Nozzles (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Claims (9)

  1. Bombe à aérosol monobloc rechargeable plusieurs fois (12) avec corps cylindrique et goulot conique fermé par une tête de soupape (19 ; 37) recevant une soupape d'atomisation (20 ; 38) et par l'intermédiaire de laquelle un fluide est versé sous pression dans le récipient, et caractérisée en ce que
    a) un piston (16) pourvu de joints (24, 25) en contact avec la paroi interne de la boíte est disposé dans la partie cylindrique intérieure du récipient,
    b) l'espace constitué en-deçà du piston (16) est rempli avec de l'air comprimé (26) comme moyen de pression,
    c) l'espace constitué par la face supérieure du piston (16), la face inférieure de la tête de soupape (19 ; 37) et la paroi interne supérieure du récipient (12) contient le fluide d'atomisation (27),
    d) la soupape d'atomisation (20 ; 38) est intégrée dans le fond de la tête de soupape (19 ; 37) et
    e) une valve en caoutchouc (23) est disposée dans le piston (16), sur la face supérieure (21) orientée vers le fluide d'atomisation (27).
  2. Récipient selon la revendication 1, caractérisé en ce que le piston (16) consiste en un élément structural en métal ou en plastique disposant, sur son bord inférieur externe, d'une lèvre de fermeture (24) disposée et conçue de telle sorte qu'elle est poussée vers l'extérieur en cas de pression vers le haut exercée sur le piston et elle forme une fermeture entre la surface interne du récipient (12) et la surface périphérique du piston (16) présentant, dans la zone intermédiaire, une lèvre de fermeture (25) qui est poussée vers l'extérieur en cas de pression agissant sur la face supérieure du piston et forme une fermeture entre la surface interne du récipient (12) et la surface périphérique du piston (16), et adapté, dans la partie supérieure, à la conicité du corps du récipient.
  3. Récipient selon la revendication 1 ou 2, caractérisé en ce que le piston (16) présente un évidement centré, embouti, en forme de pot et adapté à la forme de la tête de soupape (19), ainsi qu'une paroi périphérique (17) annulaire aux extrémités supérieure et inférieure de laquelle sont prévues des lèvres de fermeture (24, 25) annulaires (24, 25).
  4. Récipient selon une des revendications 1 - 3, caractérisé en ce que le piston (16) présente, à l'intérieur, des renforcements lamelliformes.
  5. Récipient selon une des revendications 1 - 4, caractérisé en ce que la paroi interne du récipient (12) et / ou la paroi périphérique du piston (16) sont dotées d'un revêtement (28, 29) en téflon par exemple, notamment sur les lèvres de fermeture (24, 25).
  6. Procédé permettant de produire des bombes à aérosol monobloc rechargeables plusieurs fois conformes à une des revendications 1 - 5, dans lesquelles un fluide d'atomisation sous pression atomisé par actionnement d'une soupape d'atomisation est versé, et caractérisé en ce que
    a) un corps de récipient cylindrique ouvert dans la partie supérieure, avec diamètre uniforme sur toute la hauteur et fond intégré est produit,
    b) un piston est inséré par le haut dans le corps de récipient cylindrique, de telle sorte qu'il puisse être déplacé le long de la paroi interne cylindrique du corps, et de telle sorte que les espaces situés au-dessus et en dessous du piston soient maintenus séparés par des lèvres de fermeture du piston ;
    c) l'extrémité supérieure du corps de récipient cylindrique est déformée et relevée en direction du goulot,
    d) le corps de récipient situé en dessous du piston est rempli d'air comprimé par l'intermédiaire d'une valve en caoutchouc prévue dans le piston et à l'aide d'une aiguille de remplissage.
    e) une tête de soupape avec soupape d'atomisation est insérée sur la soupape supérieure du récipient, la tête de soupape est attachée au récipient avec une pince Clinch et
    f) le fluide d'atomisation est introduit dans le récipient, entre la tête de soupape et le piston, à l'aide d'une aiguille de remplissage et par l'intermédiaire de la soupape d'atomisation de la tête de soupape.
  7. Dispositif pour remplir des bombes aérosol rechargeables plusieurs fois conformes à une des revendications 1 - 5, caractérisé par la combinaison des caractéristiques suivantes :
    a) un châssis (1) qui constitue la station de remplissage
    b) un piston de remplissage (7) supporté par le châssis et doté d'un réservoir de remplissage (6) vers lequel le fluide de remplissage est acheminé via une conduite d'aspiration (10), à partir d'un réservoir de stockage,
    c) une soupape de retenue et de sûreté (11) située dans la conduite d'aspiration (10),
    d) une aiguille de remplissage (9) située à l'extrémité de piston orientée vers la tête de soupape (19) du récipient, reliée, dans la tête de soupape (19), à la soupape d'atomisation (20) et ouvrant la soupape d'atomisation lors de la sortie du piston, de telle sorte à dégager du réservoir de stockage du fluide de remplissage d'un récipient, et,
    e) un pied (3) situé contre le châssis (1) et recevant le récipient à remplir (12) de manière centrée par rapport à l'aiguille de remplissage.
  8. Dispositif selon la revendication 7, caractérisé en ce que la capacité du réservoir de remplissage (6) recevant le piston de remplissage (7) correspond à la quantité de fluide à insérer dans un récipient (12).
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que la soupape de sûreté (11) est une soupape graduée empêchant que le récipient (12) soit trop rempli.
EP98936090A 1998-06-03 1998-06-03 Bombe a aerosol rechargeable plusieurs fois, dispositif pour remplir de tels recipients et procede permettant de les produire Expired - Lifetime EP1084067B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1998/001510 WO1999062792A1 (fr) 1998-06-03 1998-06-03 Bombe a aerosol rechargeable plusieurs fois, dispositif pour remplir de tels recipients et procede permettant de les produire

Publications (2)

Publication Number Publication Date
EP1084067A1 EP1084067A1 (fr) 2001-03-21
EP1084067B1 true EP1084067B1 (fr) 2002-04-17

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EP98936090A Expired - Lifetime EP1084067B1 (fr) 1998-06-03 1998-06-03 Bombe a aerosol rechargeable plusieurs fois, dispositif pour remplir de tels recipients et procede permettant de les produire

Country Status (7)

Country Link
US (1) US6332482B1 (fr)
EP (1) EP1084067B1 (fr)
JP (1) JP2002516796A (fr)
AT (1) ATE216342T1 (fr)
AU (1) AU8529598A (fr)
DE (2) DE59803889D1 (fr)
WO (1) WO1999062792A1 (fr)

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US4108219A (en) * 1977-05-25 1978-08-22 Joseph Shulsinger Aerosol dispenser with inner container and piston
DE3271416D1 (en) 1981-11-06 1986-07-03 Polypag Ag Pressured container for delivering assembly foam, especially one-component polyurethane foam
FR2596022B1 (fr) * 1986-03-24 1989-01-06 Clanet Frank Piston souple et gonflable pour conteneur bi- ou pluricompartimental
FR2639920A1 (fr) * 1988-12-06 1990-06-08 Debard Andre Aerosol a piston auto-active
DE9006569U1 (de) 1989-11-06 1990-08-16 Henkel KGaA, 4000 Düsseldorf Druckdose mit Folienbeutel
DE19717080C2 (de) * 1996-12-19 2001-12-06 Manfred Stadler Wiederholt nachfüllbare Spraydose oder -flasche

Also Published As

Publication number Publication date
EP1084067A1 (fr) 2001-03-21
DE59803889D1 (de) 2002-05-23
AU8529598A (en) 1999-12-20
ATE216342T1 (de) 2002-05-15
DE19882505D2 (de) 2001-06-21
US6332482B1 (en) 2001-12-25
WO1999062792A1 (fr) 1999-12-09
JP2002516796A (ja) 2002-06-11

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