EP0550409A1 - Sprayhead for a spray container for dispensing foam - Google Patents

Sprayhead for a spray container for dispensing foam Download PDF

Info

Publication number
EP0550409A1
EP0550409A1 EP93103462A EP93103462A EP0550409A1 EP 0550409 A1 EP0550409 A1 EP 0550409A1 EP 93103462 A EP93103462 A EP 93103462A EP 93103462 A EP93103462 A EP 93103462A EP 0550409 A1 EP0550409 A1 EP 0550409A1
Authority
EP
European Patent Office
Prior art keywords
closure element
spray head
outlet channel
outlet
foam
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.)
Granted
Application number
EP93103462A
Other languages
German (de)
French (fr)
Other versions
EP0550409B1 (en
Inventor
Franz Zimmerhackel
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.)
Deutsche Prazisions-Ventil GmbH
Deutsche Prazisions Ventil GmbH
Original Assignee
Deutsche Prazisions-Ventil GmbH
Deutsche Prazisions Ventil GmbH
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 Deutsche Prazisions-Ventil GmbH, Deutsche Prazisions Ventil GmbH filed Critical Deutsche Prazisions-Ventil GmbH
Publication of EP0550409A1 publication Critical patent/EP0550409A1/en
Application granted granted Critical
Publication of EP0550409B1 publication Critical patent/EP0550409B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B05B11/0005—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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • B65D83/205—Actuator caps, or peripheral actuator skirts, attachable to the aerosol 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
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
    • B65D83/30—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods
    • 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
    • B65D83/40—Closure caps
    • 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
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
    • B65D83/7535—Outlet valves opened by the product to be delivered

Definitions

  • the invention relates to a spray head for a spray container for dispensing foam, the spray container having a manually operable dispensing valve in an outlet channel of the spray head and the spray head having a closure element which closes the outlet channel automatically and with a delay relative to the dispensing valve, downstream of the dispensing valve.
  • the closure element hermetically closes, the product residue remaining between the dispensing valve and the outlet opening can remain in the closed one Foam the outlet channel and, if necessary, open the closure element again under the pressure of the foam, so that foam continues to flow out.
  • the invention has for its object to provide a spray head of the generic type, in which the emerging foam has a higher strength and an outflow of foam is avoided after closing the closure element.
  • the closure element has a membrane which acts as a foam outlet brake and is made of elastically flexible material and has at least one through hole, and each through hole can be blocked off by contacting the membrane at the edge of the outlet opening of the outlet channel or on a pin held in the outlet channel, so that the Opening of the closure element is delayed compared to the opening of the dispensing valve and the closure element in its closed position allows gases but no liquids to escape.
  • the foam strength is increased by the action of the delayed opening closure element as a foam outlet brake. Due to the non-hermetic closing and the still possible gas outlet, after-foaming and outflow of foam is avoided at the same time.
  • the closure element is easy to manufacture and assemble.
  • the membrane provided with a through hole does not serve as a foam outlet brake. Rather, the through-hole widens sufficiently when the dispensing valve is open, so that in the event of a blockage due to dried-out product residues discharged from the container, they can be loosened in and out of the through-hole to be able to blow out.
  • a pin fastened in the outlet channel protrudes into the through hole, the pin and through hole forming a seal which only opens a passage when there is considerable excess pressure.
  • a membrane covering an outlet bore in a stopper and perforated radially outside of the outlet bore acts only as a pressure relief valve in order to allow gas to escape at an overpressure due to heating of the container contents.
  • This membrane also does not act as a foam outlet brake.
  • the pin is preferably held coaxially in the outlet channel by at least one radial web.
  • the outlet channel can be divided into a first section and a second section which can be plugged together and has the closure element.
  • the first section can form the conventional outlet channel into which the second section can simply be inserted in the desired configuration.
  • the second section of the outlet channel can then be expanded toward the closure element.
  • closure element can be held in a snap fit or friction on the free end of the outlet channel.
  • the spray head can be snapped onto the spray container with a peripheral wall and has an upper wall which only connects to the upper wall on one side of an outlet pipe which delimits the dispensing channel and is connected to the upper wall
  • Circumferential wall has a flexible connection, wherein the outlet pipe can be plugged onto a dispensing tube which also serves to actuate the dispensing valve of the spray container.
  • the actuating attachment 1 has a vertical outlet pipe 5, which forms a first section of an outlet channel 6 and into which a pipe socket 7 of the closure cap 2 is inserted, the pipe socket 7 forming a second section of the outlet channel 6.
  • the outlet pipe 5 and the pipe socket 7 are held tightly together in the frictional engagement.
  • the axially lower section of the outlet tube 5 forms a socket 8 for receiving the outlet end of an outlet tube of the outlet valve.
  • the outlet channel 6 is partially blocked by a baffle 9 extending transversely therein, on which the aqueous aerosol liquid released from the spray container can initially foam.
  • the upper wall 10 of the actuating attachment 1 is connected in one piece only on one side (in FIG. 1) of the outlet pipe 5 to the upper edge of a radially outer peripheral wall 11 of the actuating attachment 1 which can be snapped onto the upper edge of the spray container.
  • the wall 10 is made of flexible material. Therefore, by depressing one of the connection points between the walls 10 and 11 diametrically opposite actuating step 12, pressure can be exerted on the dispensing tube of the dispensing valve which engages in the socket 8.
  • the dispensing valve is opened by depressing the dispensing tube, which at the same time forms a closure part of the dispensing valve.
  • the closure element 3 is shaped like a mushroom and axially inserted into the outlet channel 6 with its stem 13.
  • the stem 13 has a radial projection 14 in the form of a circumferential bead, which engages under an undercut 15, which is also formed by a bead protruding radially inwards in the outlet channel 6.
  • the radial projection 14 In the closed position of the closure element 3 shown in FIG. 1, this lies with the edge 16 of its mushroom head 17 on the edge 18 of the outlet opening of the outlet channel 6.
  • the radial projection 14 has an axial distance d from the undercut 15, through which the stroke of the closure element 3, which is made of rigid material, is determined and limited.
  • Axial through channels 19 penetrate the radial projection 14 up to the upper side of the projection forming the undercut 15.
  • the mushroom head 17 of the closure element 3 is sunk largely flush in an axial recess 20 in the mushroom-like extension of the closure attachment 2.
  • the dispensing valve closes, while the closure element 3 continues to maintain the open position under the pressure of the foam.
  • the closure element 3 In the upright position of the spray container and accordingly the vertical position of the outlet channel 6, the closure element 3 now sinks back into the closed position when the foam pressure decreases. Alternatively, the closure element 3 can also be manually stripped of the leaked Foam are pushed back into the closed position. In the closed position, gas can continue to escape through the non-hermetically sealed closing gap between the closure element 3 and the closure attachment 2, while the foam or liquid forming in the outlet channel 6 is retained and at the same time it is prevented that the product residue remaining in the outlet channel can change under air access .
  • the top of the actuating attachment 1a is designed as an approximately cup-shaped projection 21, on the bottom 22 of which the outlet pipe 5 is molded.
  • the outlet channel 6 tapers in the region of the base 22 and is surrounded on the upper side by an axially projecting sealing edge 23.
  • the closure element 3b in the form of a hood made of elastically resilient rubber-like material is snap-fitted onto the top of the projection 21, a radially inwardly projecting annular bead of the closure element 3b engaging in a radially outer circumferential groove of the projection 21 and the bottom of the hood forming a membrane, which rests under spring tension on the sealing edge 23 forming the edge of the outlet opening of the outlet channel 6.
  • the bottom or the membrane of the hood forming the closure element 3b is provided radially outside of the sealing edge 23 with through holes 24 which, in the illustrated closed position of the closure element 3b, do not, however, by the membrane resting against the sealing edge 23 against the escape of foam or liquid against the passage of gas, the pressure of which is higher than the closing force of the membrane.
  • the dispensing valve (not shown) is therefore also opened in this exemplary embodiment and then after Formation of foam under sufficient pressure in the outlet channel 6 of the outlet pipe 5, the membrane is lifted off the sealing edge 23, so that the foam can escape through the through holes 24. Conversely, after the pressure has been removed from the actuation stage 12 and the dispensing valve has closed, the membrane only returns to the illustrated closed position after the pressure in the outlet channel 6 has decreased.
  • the perforated membrane has the function of a foam brake.
  • a baffle is not provided.
  • the outlet pipe 5a runs vertically in the region of the socket 8 and then horizontally after a right-angled bend in order to be able to spray the foam largely horizontally or more conveniently downwards.
  • annular groove 25 is formed concentrically with the outlet channel 6.
  • the closure element 3c again has the shape of a hood, which, however, is placed in frictional engagement on the free end of the outlet pipe 5a.
  • the bottom of the closure hood 3c again forms a membrane made of elastically resilient rubber-like material with through holes 24, which are aligned with the annular groove 25 and, in the closed position shown, are blocked off by the membrane resting against the edge 23a of the outlet opening of the outlet channel 6.
  • the dispensing valve (not shown) of the spray container is also opened here.
  • the released product liquid in which propellant is dissolved or emulsified, the task of which is to inflate the liquid, flows against the wall 9 of the outlet pipe 5a, which extends transversely to the direction of flow, in the region of the socket 8, this wall 9 in turn performing the function has a baffle to let the liquid foam in the outlet channel 6. Only then does the pressure rising in the outlet channel 6 lift the membrane of the closure element 3c from the edge 23a of the outlet opening of the outlet channel 6, so that the foam which forms can escape. Here, too, the membrane of the closure element 3c again forms a foam outlet brake, which contributes to the solidification of the foam.
  • the actuating attachment 1c largely corresponds to the actuating attachment 1 according to FIGS. 1 and 2, only that the baffle 9 is omitted.
  • the pipe socket 7b which also widens radially towards the upper free end, contains a coaxial pin 26, which is held coaxially in the outlet channel 6 by at least one radial web 27 with axial openings 28.
  • the closure element 3d in turn has approximately the shape of a hood or a pot, which is held with its peripheral wall in a snap fit in a coaxial annular groove in the end face of the pipe socket 7b and consists of elastically resilient rubber-like material.
  • the bottom of the hood or of the pot 3d forms a membrane which has a through hole 24 in the middle which is blocked off by the membrane resting against the pin 26 in the closed position shown in FIG. 7.
  • the closure element 3d or its membrane is brought into the opening or closing position with a delay depending on the pressure in the outlet channel 6 compared to the opening and closing of the (not shown) dispensing valve by the elastic membrane is lifted from the pin 26 or is brought back into contact with this pin 26 by its spring force.
  • the closure attachment 2b sits tightly on the outlet pipe 5.
  • the actuating attachment 1d again largely corresponds, except for the missing baffle 9, to the actuating attachment 1 according to FIGS. 1 and 2.
  • the closure attachment 2c which is inserted tightly into the outlet pipe 5, contains an annular groove 25a surrounding the outlet nozzle 7c, which is aligned with outlet holes 24 in a membrane of the hood-like or cup-shaped closure element 3e made of resilient material, which frictionally engages with a radially inner circumferential wall in the annular groove 25a and with a radially outer circumferential wall in an annular groove 29 in the end face of the pipe socket 7c surrounding outer wall 30 engages in frictional engagement.
  • the membrane of the closure element 3e lies in the closed position on the edge 23a of the outlet opening of the outlet channel 6 and blocks the passage to the through holes 24 lying radially outside the edge 23a.
  • the operation of this spray head in principle corresponds to the operation of the spray heads according to FIGS. 3 and 4th
  • polygonal, e.g. quadrangular, closure elements and correspondingly adapted actuating attachments with the same design, as shown, can be provided.

Landscapes

  • 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)
  • Nozzles (AREA)

Abstract

In a spray head for a spray container for dispensing foam, the spray container having a manually actuable dispensing valve in an outlet channel (6) of the spray head, and the spray head having a closure element (3b), which automatically closes the outlet channel (6), downstream of the dispensing valve, the opening and closing of the closure element (3b) is delayed in each case relative to the opening and closing of the dispensing valve, and the closure element (3b) allows gases but not liquids to escape in its closed position. In this manner, the closure element not only has a shutting-off function in respect of a residual product contained in the outlet channel, but it also acts at the same time as a foam outlet brake which solidifies the foam. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Sprühkopf für einen Sprühbehälter zur Ausgabe von Schaum, wobei der Sprühbehälter ein manuell betätigbares Ausgabeventil in einem Austrittskanal des Sprühkopfes und der Sprühkopf ein den Austrittskanal selbsttätig und gegenüber dem Ausgabeventil verzögert schließendes Verschlußelement stromunterhalb des Ausgabeventils aufweist.The invention relates to a spray head for a spray container for dispensing foam, the spray container having a manually operable dispensing valve in an outlet channel of the spray head and the spray head having a closure element which closes the outlet channel automatically and with a delay relative to the dispensing valve, downstream of the dispensing valve.

Bei einem bekannten Sprühkopf dieser Art (US-A 44 37 592) wird das Verschlußelement vor dem Ausgabeventil geöffnet und nach diesem hermetisch geschlossen. Bei der Ausgabe von Schaum aus einem Aerosol- bzw. Sprühbehälter (Sprühdose) ist man jedoch daran interessiert, daß das zunächst flüssig in dem Sprühbehälter enthaltene Aerosolprodukt beim Öffnen des Ausgabeventils nicht ungebremst aus dem Sprühkopf austritt, sondern zunächst vollständig aufschäumt. Wenn das Verschlußelement jedoch vor dem Ausgabeventil öffnet, kann die Aerosolflüssigkeit zumindest teilweise austreten, bevor sie vollständig aufgeschäumt ist. Ferner ist man auch daran interessiert, den Schaum nicht ungebremst austreten zu lassen, weil sich gezeigt hat, daß ein gebremst austretender Schaum eine höhere Schaumfestigkeit erhält. Wenn andererseits das Verschlußelement hermetisch schließt, kann der zwischen dem Ausgabeventil und der Auslaßöffnung verbleibende Produktrest in dem geschlossenen Austrittskanal nachschäumen und gegebenenfalls das Verschlußelement unter dem Druck des Schaums wieder öffnen, so daß weiterhin Schaum ausströmt.In a known spray head of this type (US-A 44 37 592), the closure element is opened in front of the dispensing valve and hermetically closed after it. When dispensing foam from an aerosol or spray container (spray can), however, one is interested in the fact that the aerosol product initially contained in liquid form in the spray container does not come out of the spray head unchecked when the dispensing valve is opened, but initially foams up completely. However, if the closure element opens in front of the dispensing valve, the aerosol liquid can at least partially escape before it is completely foamed. Furthermore, one is also interested in not allowing the foam to emerge unchecked, because it has been shown that a foam that emerges when braked has a higher foam strength. If, on the other hand, the closure element hermetically closes, the product residue remaining between the dispensing valve and the outlet opening can remain in the closed one Foam the outlet channel and, if necessary, open the closure element again under the pressure of the foam, so that foam continues to flow out.

Der Erfindung liegt die Aufgabe zugrunde, einen Sprühkopf der gattungsgemäßen Art anzugeben, bei dem der austretende Schaum eine höhere Festigkeit aufweist und ein Ausströmen von Schaum nach dem Schließen des Verschlußelements vermieden ist.The invention has for its object to provide a spray head of the generic type, in which the emerging foam has a higher strength and an outflow of foam is avoided after closing the closure element.

Erfindungsgemäß ist diese Aufgabe dadurch gelöst, daß das Verschlußelement eine als Schaumaustrittsbremse wirkende Membran aus elastisch nachgiebigem Material mit wenigstens einem Durchgangsloch aufweist und jedes Durchgangsloch durch Anlage der Membran am Rand der Austrittsöffnung des Austrittskanals oder an einem im Austrittskanal gehaltenen Stift absperrbar ist, so daß das Öffnen des Verschlußelements gegenüber dem Öffnen des Ausgabeventils verzögert ist und das Verschlußelement in seiner Schließlage Gase, aber keine Flüssigkeiten austreten läßt.According to the invention, this object is achieved in that the closure element has a membrane which acts as a foam outlet brake and is made of elastically flexible material and has at least one through hole, and each through hole can be blocked off by contacting the membrane at the edge of the outlet opening of the outlet channel or on a pin held in the outlet channel, so that the Opening of the closure element is delayed compared to the opening of the dispensing valve and the closure element in its closed position allows gases but no liquids to escape.

Bei dieser Lösung wird durch die Wirkung des verzögert öffnenden Verschlußelements als Schaumaustrittsbremse die Schaumfestigkeit erhöht. Durch das nichthermetische Schließen und den weiterhin möglichen Gasaustritt wird gleichzeitig auch ein Nachschäumen und Ausströmen von Schaum vermieden. Außerdem ist das Verschlußelement einfach herstellbar und montierbar.In this solution, the foam strength is increased by the action of the delayed opening closure element as a foam outlet brake. Due to the non-hermetic closing and the still possible gas outlet, after-foaming and outflow of foam is avoided at the same time. In addition, the closure element is easy to manufacture and assemble.

Bei dem aus der GB-A-1 226 565 bekannten Sprühkopf dient die mit einem Durchgangsloch versehene Membran nicht als Schaumaustrittsbremse. Vielmehr weitet sich das Durchgangsloch bei geöffnetem Ausgabeventil hinreichend weit auf, um im Falle einer Verstopfung durch ausgetrocknete, aus dem Behälter ausgegebene Produktreste diese in dem Durchgangsloch lösen und aus diesem ausblasen zu können. In der Schließlage der Membran ragt ein im Austrittskanal befestigter Stift in das Durchgangsloch, wobei Stift und Durchgangsloch eine Dichtung bilden, die erst bei erheblichem Überdruck einen Durchgang freigibt.In the spray head known from GB-A-1 226 565, the membrane provided with a through hole does not serve as a foam outlet brake. Rather, the through-hole widens sufficiently when the dispensing valve is open, so that in the event of a blockage due to dried-out product residues discharged from the container, they can be loosened in and out of the through-hole to be able to blow out. In the closed position of the membrane, a pin fastened in the outlet channel protrudes into the through hole, the pin and through hole forming a seal which only opens a passage when there is considerable excess pressure.

Bei dem aus der US-A-3 976 216 bekannten Behälter hat eine eine Austrittsbohrung in einem Stopfen abdeckende, radial außerhalb der Austrittsbohrung gelochte Membran lediglich die Funktion eines Überdruckventils, um Gas bei einem Überdruck aufgrund einer Erwärmung des Behälterinhalts austreten zu lassen. Auch diese Membran wirkt mithin nicht als Schaumaustrittsbremse.In the container known from US-A-3 976 216, a membrane covering an outlet bore in a stopper and perforated radially outside of the outlet bore acts only as a pressure relief valve in order to allow gas to escape at an overpressure due to heating of the container contents. This membrane also does not act as a foam outlet brake.

Der Stift ist vorzugsweise durch wenigstens einen radialen Steg koaxial im Austrittskanal gehalten.The pin is preferably held coaxially in the outlet channel by at least one radial web.

Der Austrittskanal kann in einen ersten Abschnitt und einen mit diesem zusammensteckbaren, das Verschlußelement aufweisenden zweiten Abschnitt unterteilt sein. Hierbei kann der erste Abschnitt den herkömmlichen Austrittskanal bilden, in den der zweite Abschnitt in der gewünschten Ausgestaltung einfach eingesteckt werden kann.The outlet channel can be divided into a first section and a second section which can be plugged together and has the closure element. Here, the first section can form the conventional outlet channel into which the second section can simply be inserted in the desired configuration.

Sodann kann der zweite Abschnitt des Austrittskanals zum Verschlußelement hin erweitert sein.The second section of the outlet channel can then be expanded toward the closure element.

Ferner kann das Verschlußelement im Schnappsitz oder Reibschluß auf dem freien Ende des Austrittskanals gehalten sein.Furthermore, the closure element can be held in a snap fit or friction on the free end of the outlet channel.

Außerdem kann dafür gesorgt sein, daß der Sprühkopf mit einer Umfangswand im Schnappsitz auf den Sprühbehälter aufsetzbar ist und eine obere Wand aufweist, die nur auf einer Seite eines den Ausgabekanal begrenzenden, mit der oberen Wand verbundenen Austrittsrohres mit der Umfangswand eine biegsame Verbindung aufweist, wobei das Austrittsrohr auf ein auch der Betätigung des Ausgabeventils des Sprühbehälters dienendes Ausgaberohr aufsteckbar ist.In addition, it can be ensured that the spray head can be snapped onto the spray container with a peripheral wall and has an upper wall which only connects to the upper wall on one side of an outlet pipe which delimits the dispensing channel and is connected to the upper wall Circumferential wall has a flexible connection, wherein the outlet pipe can be plugged onto a dispensing tube which also serves to actuate the dispensing valve of the spray container.

Die Erfindung und ihre Weiterbildungen werden nachstehend anhand von Zeichnungen bevorzugter Ausführungsbeispiele näher beschrieben. Es zeigen:

Fig. 1
einen Axialschnitt durch einen Sprühkopf in der Schließstellung, der auch zum Gegenstand der europäischen Patentanmeldung 90 105 423.9-2308 gehört,
Fig. 2
den Sprühkopf nach Fig. 1 in der Öffnungsstellung,
Fig. 3
einen Axialschnitt durch einen Aufsatz eines erfindungsgemäßen Sprühkopfes mit zugehörigem Verschlußelement in der Schließstellung,
Fig. 4
ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Sprühkopfes im Axialschnitt,
Fig. 5
ein drittes Ausführungsbeispiel eines erfindungsgemäßen Sprühkopfes im Axialschnitt und
Fig. 6
ein viertes Ausführungsbeispiel eines erfindungsgemäßen Sprühkopfes im Axialschnitt.
The invention and its developments are described below with reference to drawings of preferred embodiments. Show it:
Fig. 1
an axial section through a spray head in the closed position, which also belongs to the subject of European patent application 90 105 423.9-2308,
Fig. 2
1 in the open position,
Fig. 3
3 shows an axial section through an attachment of a spray head according to the invention with an associated closure element in the closed position,
Fig. 4
another embodiment of a spray head according to the invention in axial section,
Fig. 5
a third embodiment of a spray head according to the invention in axial section and
Fig. 6
a fourth embodiment of a spray head according to the invention in axial section.

Der Sprühkopf nach den Fig. 1 und 2 besteht aus einem Betätigungsaufsatz 1 für ein (nicht dargestelltes) Ausgabeventil eines Sprühbehälters zur Ausgabe von Schaum mit einem im Querschnitt etwa pilzkopfförmigen Verschlußaufsatz 2, in den ein Verschlußelement 3 in Form eines Pilzkopfes im Schnappsitz eingesetzt ist, und einer Schutzhaube 4.1 and 2 consists of an actuating attachment 1 for a (not shown) dispensing valve of a spray container for dispensing foam with an approximately mushroom-shaped closure attachment 2, in which a closure element 3 in the form of a mushroom head is inserted in a snap fit, and a protective hood 4.

Der Betätigungsaufsatz 1 hat ein vertikales Austrittsrohr 5, das einen ersten Abschnitt eines Austrittskanals 6 bildet und in das ein Rohrstutzen 7 des Verschlußaufsatzes 2 eingesetzt ist, wobei der Rohrstutzen 7 einen zweiten Abschnitt des Austrittskanals 6 bildet. Hierbei sind das Austrittsrohr 5 und der Rohrstutzen 7 im Reibschluß dicht zusammengehalten. Der axial untere Abschnitt des Austrittsrohres 5 bildet eine Fassung 8 zur Aufnahme des Austrittsendes eines Ausgaberohres des Ausgabeventils. Der Austrittskanal 6 ist teilweise durch eine sich quer in diesem erstreckende Prallwand 9 versperrt, an der die wässrige, aus dem Sprühbehälter freigegebene Aerosolflüssigkeit zunächst aufschäumen kann.The actuating attachment 1 has a vertical outlet pipe 5, which forms a first section of an outlet channel 6 and into which a pipe socket 7 of the closure cap 2 is inserted, the pipe socket 7 forming a second section of the outlet channel 6. Here, the outlet pipe 5 and the pipe socket 7 are held tightly together in the frictional engagement. The axially lower section of the outlet tube 5 forms a socket 8 for receiving the outlet end of an outlet tube of the outlet valve. The outlet channel 6 is partially blocked by a baffle 9 extending transversely therein, on which the aqueous aerosol liquid released from the spray container can initially foam.

Die obere Wand 10 des Betätigungsaufsatzes 1 ist nur auf der einen (in Fig. 1 linken) Seite des Austrittsrohres 5 mit dem oberen Rand einer radial äußeren, auf den oberen Rand des Sprühbehälters im Schnappsitz aufsetzbaren Umfangswand 11 des Betätigungsaufsatzes 1 einteilig verbunden. Die Wand 10 besteht aus biegsamem Material. Daher kann durch Niederdrücken einer der Verbindungsstelle zwischen den Wänden 10 und 11 diametral gegenüberliegenden Betätigungsstufe 12 ein Druck auf das in die Fassung 8 eingreifende Ausgaberohr des Ausgabeventils ausgeübt werden. Durch das Niederdrücken des Ausgaberohrs, das zugleich einen Verschlußteil des Ausgabeventils bildet, wird das Ausgabeventil geöffnet.The upper wall 10 of the actuating attachment 1 is connected in one piece only on one side (in FIG. 1) of the outlet pipe 5 to the upper edge of a radially outer peripheral wall 11 of the actuating attachment 1 which can be snapped onto the upper edge of the spray container. The wall 10 is made of flexible material. Therefore, by depressing one of the connection points between the walls 10 and 11 diametrically opposite actuating step 12, pressure can be exerted on the dispensing tube of the dispensing valve which engages in the socket 8. The dispensing valve is opened by depressing the dispensing tube, which at the same time forms a closure part of the dispensing valve.

Das Verschlußelement 3 ist etwa pilzartig geformt und mit seinem Stiel 13 axial in den Austrittskanal 6 eingeführt. Der Stiel 13 hat einen radialen Vorsprung 14 in Form eines umlaufenden Wulstes, der eine Hinterschneidung 15 untergreift, die ebenfalls durch einen radial nach innen vorstehenden Wulst im Austrittskanal 6 gebildet wird. In der in Fig. 1 dargestellten Schließstellung des Verschlußelements 3 liegt dieses mit dem Rand 16 seines Pilzkopfes 17 am Rand 18 der Austrittsöffnung des Austrittskanals 6 an. Der radiale Vorsprung 14 hat in der Schließstellung einen axialen Abstand d von der Hinterschneidung 15, durch den der Hub des aus starrem Material bestehenden Verschlußelements 3 bestimmt und begrenzt wird. Axiale Durchgangskanäle 19 durchsetzen den radialen Vorsprung 14 bis auf die obere Seite des die Hinterschneidung 15 bildenden Vorsprungs. Der Pilzkopf 17 des Verschlußelements 3 ist in einer axialen Vertiefung 20 in der pilzkopfartigen Erweiterung des Verschlußaufsatzes 2 weitgehend bündig versenkt.The closure element 3 is shaped like a mushroom and axially inserted into the outlet channel 6 with its stem 13. The stem 13 has a radial projection 14 in the form of a circumferential bead, which engages under an undercut 15, which is also formed by a bead protruding radially inwards in the outlet channel 6. In the closed position of the closure element 3 shown in FIG. 1, this lies with the edge 16 of its mushroom head 17 on the edge 18 of the outlet opening of the outlet channel 6. In the closed position, the radial projection 14 has an axial distance d from the undercut 15, through which the stroke of the closure element 3, which is made of rigid material, is determined and limited. Axial through channels 19 penetrate the radial projection 14 up to the upper side of the projection forming the undercut 15. The mushroom head 17 of the closure element 3 is sunk largely flush in an axial recess 20 in the mushroom-like extension of the closure attachment 2.

Wenn die Betätigungsstufe 12 niedergedrückt und das Ausgabeventil geöffnet wird, strömt der Behälterinhalt unter dem Druck eines Treibmittels über das Ausgabeventil und dessen Ausgaberohr gegen die Prallwand 9, von der es unter Aufschäumung in das Austrittsrohr 5 und den Rohrstutzen 7 umgeleitet wird. Hier trifft es auf das die Schließstellung nach Fig. 1 einnehmende Verschlußelement 3, wobei dieses gegen seine Schwerkraft (bzw. sein Gewicht) unter dem Druck des Schaums verzögert in die Öffnungsstellung nach Fig. 2 angehoben wird und wie eine Schaumaustrittsbremse wirkt. Durch diesen "gebremsten" Austritt des Schaums wird dessen Festigkeit erhöht.When the actuation stage 12 is depressed and the dispensing valve is opened, the contents of the container flow under the pressure of a propellant via the dispensing valve and its dispensing tube against the baffle wall 9, from which it is redirected with foaming into the outlet pipe 5 and the pipe socket 7. Here it meets the closure element 3 which takes up the closed position according to FIG. 1, whereby this is raised against its gravity (or its weight) under the pressure of the foam with a delay into the open position according to FIG. 2 and acts like a foam outlet brake. This "braked" exit of the foam increases its strength.

Sobald der Druck von der Betätigungstaste 12 weggenommen wird, schließt sich das Ausgabeventil, während das Verschlußelement 3 weiterhin unter dem Druck des Schaums die Öffnungsstellung beibehält.As soon as the pressure is released from the actuation button 12, the dispensing valve closes, while the closure element 3 continues to maintain the open position under the pressure of the foam.

In aufrechter Lage des Sprühbehälters und dementsprechend vertikaler Lage des Ausgangskanals 6 sinkt nun das Verschlußelement 3 bei nachlassendem Schaumdruck in die Schließstellung zurück. Alternativ kann das Verschlußelement 3 auch manuell beim Abstreifen des ausgetretenen Schaums in die Schließstellung zurückgedrückt werden. In der Schließstellung kann durch den nicht hermetisch dichten Schließspalt zwischen Verschlußelement 3 und Verschlußaufsatz 2 weiterhin Gas austreten, während der Schaum bzw. sich in dem Austrittskanal 6 bildende Flüssigkeit zurückgehalten wird und gleichzeitig verhindert wird, daß der im Austrittskanal verbleibende Produktrest sich unter Luftzutritt verändern kann.In the upright position of the spray container and accordingly the vertical position of the outlet channel 6, the closure element 3 now sinks back into the closed position when the foam pressure decreases. Alternatively, the closure element 3 can also be manually stripped of the leaked Foam are pushed back into the closed position. In the closed position, gas can continue to escape through the non-hermetically sealed closing gap between the closure element 3 and the closure attachment 2, while the foam or liquid forming in the outlet channel 6 is retained and at the same time it is prevented that the product residue remaining in the outlet channel can change under air access .

Bei dem Sprühkopf nach Fig. 3 ist die Oberseite des Betätigungsaufsatzs 1a als etwa topfförmiger Vorsprung 21 ausgebildet, an dessen Boden 22 das Austrittsrohr 5 angeformt ist. Der Austrittskanal 6 verjüngt sich im Bereich des Bodens 22 und ist auf der Oberseite von einer axial vorstehenden Dichtkante 23 umgeben. Oben auf dem Vorsprung 21 ist das Verschlußelement 3b in Form einer Haube aus elastisch nachgiebigem gummiartigem Material im Schnappsitz aufgesetzt, wobei ein radial nach innen vorstehender Ringwulst des Verschlußelements 3b in eine radial äußere Umfangsnut des Vorsprungs 21 eingreift und der Boden der Haube eine Membran bildet, die unter Federvorspannung auf der den Rand der Austrittsöffnung des Austrittskanals 6 bildenden Dichtkante 23 anliegt. Der Boden bzw. die Membran der das Verschlußelement 3b bildenden Haube ist radial außerhalb der Dichtkante 23 mit Durchgangslöchern 24 versehen, die in der dargestellten Schließlage des Verschlußelements 3b durch die Anlage der Membran an der Dichtkante 23 gegen den Austritt von Schaum oder Flüssigkeit, nicht jedoch gegen den Durchtritt von Gas, dessen Druck höher als die Schließkraft der Membran ist, abgesperrt ist.In the spray head according to FIG. 3, the top of the actuating attachment 1a is designed as an approximately cup-shaped projection 21, on the bottom 22 of which the outlet pipe 5 is molded. The outlet channel 6 tapers in the region of the base 22 and is surrounded on the upper side by an axially projecting sealing edge 23. The closure element 3b in the form of a hood made of elastically resilient rubber-like material is snap-fitted onto the top of the projection 21, a radially inwardly projecting annular bead of the closure element 3b engaging in a radially outer circumferential groove of the projection 21 and the bottom of the hood forming a membrane, which rests under spring tension on the sealing edge 23 forming the edge of the outlet opening of the outlet channel 6. The bottom or the membrane of the hood forming the closure element 3b is provided radially outside of the sealing edge 23 with through holes 24 which, in the illustrated closed position of the closure element 3b, do not, however, by the membrane resting against the sealing edge 23 against the escape of foam or liquid against the passage of gas, the pressure of which is higher than the closing force of the membrane.

Beim Niederdrücken der Betätigungsstufe 12 wird mithin auch bei diesem Ausführungsbeispiel zunächst das (nicht dargestellte) Ausgabeventil geöffnet und sodann nach Ausbildung von Schaum unter hinreichendem Druck im Ausgangskanal 6 des Austrittsrohrs 5 die Membran von der Dichtkante 23 abgehoben, so daß der Schaum über die Durchgangslöcher 24 austreten kann. Umgekehrt kehrt die Membran nach Wegnahme des Drucks von der Betätigungsstufe 12 und Schließen des Ausgabeventils erst dann wieder in die dargestellte Schließlage zurück, nachdem sich der Druck im Ausgangskanal 6 abgebaut hat.When the actuation stage 12 is depressed, the dispensing valve (not shown) is therefore also opened in this exemplary embodiment and then after Formation of foam under sufficient pressure in the outlet channel 6 of the outlet pipe 5, the membrane is lifted off the sealing edge 23, so that the foam can escape through the through holes 24. Conversely, after the pressure has been removed from the actuation stage 12 and the dispensing valve has closed, the membrane only returns to the illustrated closed position after the pressure in the outlet channel 6 has decreased.

Auch hier hat die gelochte Membran die Funktion einer Schaumbremse. Dagegen ist eine Prallwand nicht vorgesehen.Here, too, the perforated membrane has the function of a foam brake. In contrast, a baffle is not provided.

Bei dem Betätigungsaufsatz 1b nach Fig. 4 verläuft das Austrittsrohr 5a im Bereich der Fassung 8 vertikal und anschließend nach einer rechtwinkligen Abwinklung horizontal, um den Schaum weitgehend horizontal oder bequemer nach unten versprühen zu können. In der Stirnseite des Austrittsrohrs 5a ist eine Ringnut 25 konzentrisch zum Ausgangskanal 6 ausgebildet. Das Verschlußelement 3c hat wieder die Form einer Haube, die jedoch im Reibschluß auf das freie Ende des Austrittsrohrs 5a aufgesetzt ist. Der Boden der Verschlußhaube 3c bildet wieder eine Membran aus elastisch nachgiebigem gummiartigem Material mit Durchgangslöchern 24, die mit der Ringnut 25 fluchten und in der dargestellten Schließlage durch die Anlage der Membran am Rand 23a der Austrittsöffnung des Austrittskanals 6 abgesperrt sind.4, the outlet pipe 5a runs vertically in the region of the socket 8 and then horizontally after a right-angled bend in order to be able to spray the foam largely horizontally or more conveniently downwards. In the end face of the outlet tube 5a, an annular groove 25 is formed concentrically with the outlet channel 6. The closure element 3c again has the shape of a hood, which, however, is placed in frictional engagement on the free end of the outlet pipe 5a. The bottom of the closure hood 3c again forms a membrane made of elastically resilient rubber-like material with through holes 24, which are aligned with the annular groove 25 and, in the closed position shown, are blocked off by the membrane resting against the edge 23a of the outlet opening of the outlet channel 6.

Beim Niederdrücken der Betätigungsstufe 12a wird auch hier erst das (nicht dargestellte) Ausgabeventil des Sprühbehälters geöffnet. Dabei strömt die freigegebene Produktflüssigkeit, in der Treibmittel gelöst oder emulgiert ist, dessen Aufgabe es ist, die Flüssigkeit aufzublasen, gegen die sich quer zur Strömungsrichtung erstreckende Wand 9 des Austrittsrohrs 5a im Bereich der Fassung 8, wobei diese Wand 9 wiederum die Funktion einer Prallwand hat, um die Flüssigkeit im Ausgangskanal 6 aufschäumen zu lassen. Erst danach hebt der im Ausgangskanal 6 ansteigende Druck die Membran des Verschlußelements 3c von dem Rand 23a der Austrittsöffnung des Austrittskanals 6 ab, so daß der sich bildende Schaum austreten kann. Auch hier bildet die Membran des Verschlußelements 3c wieder eine Schaumaustrittsbremse, die zur Verfestigung des Schaums beiträgt. Die Rückkehr der Membran des Verschlußelements 3c in die Schließstellung vollzieht sich ebenfalls wieder verzögert gegenüber dem Schließen des Ausgabeventils entsprechend dem Druckabbau im Austrittskanal 6. Desgleichen kann in der Schließstellung des Verschlußelements 3c nur Gas, aber keine Flüssigkeit aus dem Austrittskanal 6 entweichen.When the actuation stage 12a is depressed, the dispensing valve (not shown) of the spray container is also opened here. The released product liquid, in which propellant is dissolved or emulsified, the task of which is to inflate the liquid, flows against the wall 9 of the outlet pipe 5a, which extends transversely to the direction of flow, in the region of the socket 8, this wall 9 in turn performing the function has a baffle to let the liquid foam in the outlet channel 6. Only then does the pressure rising in the outlet channel 6 lift the membrane of the closure element 3c from the edge 23a of the outlet opening of the outlet channel 6, so that the foam which forms can escape. Here, too, the membrane of the closure element 3c again forms a foam outlet brake, which contributes to the solidification of the foam. The return of the membrane of the closure element 3c to the closed position is also delayed compared to the closing of the dispensing valve in accordance with the pressure reduction in the outlet channel 6. Likewise, only gas but no liquid can escape from the outlet channel 6 in the closed position of the closure element 3c.

Bei dem Sprühkopf nach Fig. 5 entspricht der Betätigungsaufsatz 1c weitgehend dem Betätigungsaufsatz 1 nach den Fig. 1 und 2, nur daß die Prallwand 9 weggelassen ist. Der sich ebenfalls zum oberen freien Ende hin radial erweiternde Rohrstutzen 7b enthält einen koaxialen Stift 26, der durch wenigstens einen radialen Steg 27 mit axialen Durchbrüchen 28 koaxial im Austrittskanal 6 gehalten wird. Das Verschlußelement 3d hat wiederum etwa die Form einer Haube oder eines Topfes, der mit seiner Umfangswand im Schnappsitz in einer koaxialen Ringnut in der Stirnseite des Rohrstutzens 7b gehalten wird und aus elastisch nachgiebigem gummiartigem Material besteht. Der Boden der Haube bzw. des Topfes 3d bildet eine Membran, die in der Mitte ein Durchgangsloch 24 aufweist, das durch Anlage der Membran an dem Stift 26 in der in Fig. 7 dargestellten Schließlage abgesperrt ist. Auch hier wird mithin das Verschlußelement 3d bzw. dessen Membran in Abhängigkeit vom Druck im Austrittskanal 6 gegenüber dem Öffnen und Schließen des (nicht dargestellten) Ausgabeventils verzögert in die Öffnungs- bzw. Schließstellung gebracht, indem die elastische Membran von dem Stift 26 abgehoben bzw. durch ihre Federkraft wieder mit diesem Stift 26 zur Anlage gebracht wird. Auch hier ist wiederum in der Schließstellung das Entweichen von Gas, nicht jedoch von Flüssigkeit durch den Schließspalt zwischen dem Stift 26 und der Membran über die Austrittsöffnung 24 möglich, während der Verschlußaufsatz 2b dicht auf dem Austrittsrohr 5 sitzt.5, the actuating attachment 1c largely corresponds to the actuating attachment 1 according to FIGS. 1 and 2, only that the baffle 9 is omitted. The pipe socket 7b, which also widens radially towards the upper free end, contains a coaxial pin 26, which is held coaxially in the outlet channel 6 by at least one radial web 27 with axial openings 28. The closure element 3d in turn has approximately the shape of a hood or a pot, which is held with its peripheral wall in a snap fit in a coaxial annular groove in the end face of the pipe socket 7b and consists of elastically resilient rubber-like material. The bottom of the hood or of the pot 3d forms a membrane which has a through hole 24 in the middle which is blocked off by the membrane resting against the pin 26 in the closed position shown in FIG. 7. Here, too, the closure element 3d or its membrane is brought into the opening or closing position with a delay depending on the pressure in the outlet channel 6 compared to the opening and closing of the (not shown) dispensing valve by the elastic membrane is lifted from the pin 26 or is brought back into contact with this pin 26 by its spring force. Here, too, in the closed position the escape of gas, but not of liquid, is possible through the closing gap between the pin 26 and the membrane via the outlet opening 24, while the closure attachment 2b sits tightly on the outlet pipe 5.

Bei dem Sprühkopf nach Fig. 6 entspricht der Betätigungsaufsatz 1d wiederum weitgehend, bis auf die fehlende Prallwand 9, dem Betätigungsaufsatz 1 nach den Fig. 1 und 2. Der in das Austrittsrohr 5 dicht eingesetzte Verschlußaufsatz 2c enthält eine den Austrittsstutzen 7c umgebende Ringnut 25a, die mit Austrittslöchern 24 in einer Membran des hauben- oder topfartig ausgebildeten Verschlußelements 3e aus elastisch nachgiebigem Material fluchtet, das im Reibschluß mit einer radial inneren Umfangswand in die Ringnut 25a und mit einer radial äußeren Umfangswand in eine Ringnut 29 in der Stirnseite einer den Rohrstutzen 7c umgebenden Außenwand 30 im Reibschluß eingreift. Die Membran des Verschlußelements 3e liegt in der Schließlage am Rand 23a der Austrittsöffnung des Austrittskanals 6 an und versperrt den Durchgang zu den radial außerhalb des Rands 23a liegenden Durchgangslöchern 24. Die Wirkungsweise dieses Sprühkopfes entspricht prinzipiell wiederum der Wirkungsweise der Sprühköpfe nach den Fig. 3 und 4.In the spray head according to FIG. 6, the actuating attachment 1d again largely corresponds, except for the missing baffle 9, to the actuating attachment 1 according to FIGS. 1 and 2. The closure attachment 2c, which is inserted tightly into the outlet pipe 5, contains an annular groove 25a surrounding the outlet nozzle 7c, which is aligned with outlet holes 24 in a membrane of the hood-like or cup-shaped closure element 3e made of resilient material, which frictionally engages with a radially inner circumferential wall in the annular groove 25a and with a radially outer circumferential wall in an annular groove 29 in the end face of the pipe socket 7c surrounding outer wall 30 engages in frictional engagement. The membrane of the closure element 3e lies in the closed position on the edge 23a of the outlet opening of the outlet channel 6 and blocks the passage to the through holes 24 lying radially outside the edge 23a. The operation of this spray head in principle corresponds to the operation of the spray heads according to FIGS. 3 and 4th

Anstelle in der Draufsicht kreisförmiger Verschlußelemente, wie dargestellt, können auch mehreckige, z.B. viereckige, Verschlußelemente und entsprechend in der Form angepaßte Betätigungsaufsätze bei im übrigen gleicher Ausbildung, wie dargestellt, vorgesehen sein.Instead of circular closure elements in the plan view, as shown, polygonal, e.g. quadrangular, closure elements and correspondingly adapted actuating attachments with the same design, as shown, can be provided.

Claims (6)

Sprühkopf für einen Sprühbehälter zur Ausgabe von Schaum, wobei der Sprühbehälter ein manuell betätigbares Ausgabeventil in einem Austrittskanal des Sprühkopfes und der Sprühkopf ein den Austrittskanal selbsttätig und gegenüber dem Ausgabeventil verzögert schließendes Verschlußelement stromunterhalb des Ausgabeventils aufweist, dadurch gekennzeichnet, daß das Verschlußelement (3b-3e) eine als Schaumaustrittsbremse wirkende Membran aus elastisch nachgiebigem Material mit wenigstens einem Durchgangsloch (24) aufweist und jedes Durchgangsloch (24) durch Anlage der Membran am Rand (23; 23a) der Austrittsöffnung des Austrittskanals (6) oder an einem im Austrittskanal (6) gehaltenen Stift (26) absperrbar ist, so daß das Öffnen des Verschlußelements (3b-3e) gegenüber dem Öffnen des Ausgabeventils verzögert ist und das Verschlußelement in seiner Schließlage Gase, aber keine Flüssigkeiten austreten läßt.Spray head for a spray container for dispensing foam, the spray container having a manually operable dispensing valve in an outlet channel of the spray head and the spray head having a closure element which closes the outlet channel automatically and with a delay relative to the dispensing valve, downstream of the dispensing valve, characterized in that the closure element (3b-3e ) has a membrane which acts as a foam outlet brake and is made of elastically resilient material and has at least one through hole (24) and each through hole (24) by the membrane resting against the edge (23; 23a) of the outlet opening of the outlet channel (6) or on one in the outlet channel (6) held pin (26) can be locked, so that the opening of the closure element (3b-3e) is delayed compared to the opening of the dispensing valve and the closure element in its closed position allows gases but no liquids to escape. Sprühkopf nach Anspruch 1, dadurch gekennzeichnet, der Stift (26) durch wenigstens einen radialen Steg (27) koaxial im Austrittskanal (6) gehalten ist.Spray head according to claim 1, characterized in that the pin (26) is held coaxially in the outlet channel (6) by at least one radial web (27). Sprühkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Austrittskanal (6) in einen ersten Abschnitt (5) und einen mit diesem zusammensteckbaren, das Verschlußelement (3d; 3e) aufweisenden zweiten Abschnitt (7b; 7c) unterteilt ist.Spray head according to claim 1 or 2, characterized in that the outlet channel (6) into a first section (5) and a pluggable with this, the closure element (3d; 3e) having the second section (7b; 7c) is divided. Sprühkopf nach Anspruch 3, dadurch gekennzeichnet, daß sich der zweite Abschnitt (7b) des Austrittskanals zum Verschlußelement (3d) hin erweitert.Spray head according to claim 3, characterized in that the second section (7b) of the outlet channel widens towards the closure element (3d). Sprühkopf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Verschlußelement (3b-3e) im Schnappsitz oder Reibschluß auf dem freien Ende des Austrittskanals (6) gehalten ist.Spray head according to one of claims 1 to 4, characterized in that the closure element (3b-3e) is held in a snap fit or frictional engagement on the free end of the outlet channel (6). Sprühkopf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Sprühkopf mit einer Umfangswand (11) im Schnappsitz auf den Sprühbehälter aufsetzbar ist und eine obere Wand (10) aufweist, die nur auf einer Seite eines den Ausgabekanal (6) begrenzenden, mit der oberen Wand (10) verbundenen Austrittsrohres (5) mit der Umfangswand (11) eine biegsame Verbindung aufweist, wobei das Austrittsrohr (5) auf ein auch der Betätigung des Ausgabeventils des Sprühbehälters dienendes Ausgaberohr aufsteckbar ist.Spray head according to one of Claims 1 to 5, characterized in that the spray head can be snapped onto the spray container with a peripheral wall (11) and has an upper wall (10) which only delimits the dispensing channel (6) on one side, outlet pipe (5) connected to the upper wall (10) has a flexible connection to the peripheral wall (11), the outlet pipe (5) being attachable to an outlet pipe which also serves to actuate the dispensing valve of the spray container.
EP93103462A 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam Expired - Lifetime EP0550409B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE3909792 1989-03-24
DE3909792 1989-03-24
DE3931679A DE3931679A1 (en) 1989-03-24 1989-09-22 SPRAY HEAD FOR A SPRAY CONTAINER FOR DISPENSING FOAM
DE3931679 1989-09-22
EP90105423A EP0388947B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP90105423.9 Division 1990-03-22
EP90105423A Division-Into EP0388947B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam
EP90105423A Division EP0388947B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam

Publications (2)

Publication Number Publication Date
EP0550409A1 true EP0550409A1 (en) 1993-07-07
EP0550409B1 EP0550409B1 (en) 1995-11-29

Family

ID=25879177

Family Applications (3)

Application Number Title Priority Date Filing Date
EP93103461A Expired - Lifetime EP0551146B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam
EP90105423A Expired - Lifetime EP0388947B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam
EP93103462A Expired - Lifetime EP0550409B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP93103461A Expired - Lifetime EP0551146B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam
EP90105423A Expired - Lifetime EP0388947B1 (en) 1989-03-24 1990-03-22 Sprayhead for a spray container for dispensing foam

Country Status (10)

Country Link
EP (3) EP0551146B1 (en)
JP (1) JP2867179B2 (en)
AR (1) AR244577A1 (en)
AU (1) AU624933B2 (en)
BR (1) BR9005967A (en)
CA (1) CA2028850A1 (en)
DE (4) DE3931679A1 (en)
ES (3) ES2071521T3 (en)
HU (1) HU214724B (en)
WO (1) WO1990011236A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027890A1 (en) * 1993-05-24 1994-12-08 Deutsche Präzisions Ventil Gmbh Actuator for an aerosol container
DE4426120A1 (en) * 1994-07-22 1996-01-25 Coster Tecnologie Speciali Spa Spray head for a container for a pressurized fluid
EP0699597A1 (en) * 1994-09-05 1996-03-06 L'oreal, S.A. Product, in particular foam dispenser for a valved pressurized container
DE19607691A1 (en) * 1996-02-29 1997-09-04 Coster Tecnologie Speciali Spa Foam head

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660635B1 (en) * 1990-04-10 1994-01-14 Marthe Lucas HAIR CREAM DISPENSING HAIRDRESSER.
DE4108428A1 (en) * 1991-03-15 1992-09-17 Wiegner Georg Dipl Kaufm Dispenser esp. for pressurised fluids - has valve of movable valve disc located in container opening, and includes counter-seal
FR2676714B1 (en) * 1991-05-21 1993-09-24 Oreal CONTAINER PROVIDED WITH AN ELASTIC CLOSURE DEVICE.
CH680359A5 (en) * 1991-08-28 1992-08-14 Supermatic Kunststoff Ag
DE9114142U1 (en) * 1991-11-13 1993-03-11 PCT Powder Coating Technologies GmbH, 7482 Krauchenwies Device for feeding colour powder during powder coating
FR2692231B1 (en) * 1992-06-11 1996-04-26 Avitex BROADCAST NOZZLE AND BROADCASTING HEAD FOR PRESSURIZED CONTAINER.
NL9300517A (en) * 1993-03-23 1994-10-17 Airspray Int Bv Foam forming assembly, a suitable spray head and a spray can comprising such an assembly.
DE9411622U1 (en) * 1994-07-18 1994-11-17 Coster Tecnologie Speciali Spa Device for the metered discharge of a flowable medium
DE4437439A1 (en) * 1994-10-20 1996-04-25 Wella Ag Device with at least one non-slip handling or operating surface of a device
DE9419268U1 (en) * 1994-12-01 1995-01-26 Josef Wischerath Gmbh & Co. Kg, 50259 Pulheim donor
US7011978B2 (en) 2001-08-17 2006-03-14 Micron Technology, Inc. Methods of forming capacitor constructions comprising perovskite-type dielectric materials with different amount of crystallinity regions
DE10232863A1 (en) * 2002-07-16 2004-02-05 Hüttlin, Herbert, Dr.h.c. Atomizing nozzle with a rotating annular gap
DE10321902A1 (en) 2003-05-06 2004-12-09 Ing. Erich Pfeiffer Gmbh Discharge device for at least one medium
FR2980125B1 (en) * 2011-09-21 2016-01-22 Oreal DISTRIBUTION HEAD WITH TWO RESTRICTED NOZZLES
CN103286020B (en) * 2013-07-02 2016-03-02 江苏新天宝机械有限公司 Cleaning fluid shower nozzle in a kind of tank body
JP6383207B2 (en) * 2014-07-31 2018-08-29 株式会社吉野工業所 Discharge container that discharges contents to discharge surface
JP6745299B2 (en) * 2018-08-01 2020-08-26 株式会社吉野工業所 Discharge container that discharges contents on the discharge surface

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954904A (en) * 1958-10-13 1960-10-04 Joseph B Potoczky Gas pressure type dispensing container cap
GB1226565A (en) * 1967-04-07 1971-03-31
US3976216A (en) * 1974-12-26 1976-08-24 Thermo Electron Corporation Sterile bottle closure
US4314658A (en) * 1980-01-30 1982-02-09 Laauwe Robert H Viscous product dispensing squeeze bottle having a self-venting automatic shut-off valve
US4437592A (en) * 1979-12-21 1984-03-20 Bon Luigi Del Self-sealing actuating device for mounting on a discharge valve of a pressurized container
EP0196737A2 (en) * 1985-01-28 1986-10-08 Earl Wright Company Foam dispensing device
DE8524966U1 (en) * 1985-08-31 1987-01-22 Bramlage Gmbh, 2842 Lohne Screw cap for bottles or similar.
US4813577A (en) * 1988-03-04 1989-03-21 Carow International, Inc. Multiple flow dispensing cap

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913749A (en) * 1958-03-19 1959-11-24 John M Wittke Applicator for pressurized package
ES419697A1 (en) * 1972-10-18 1976-03-16 Ivanov Mantchev Valvular liquid dispensing closure
US3874563A (en) * 1973-06-19 1975-04-01 Gilbert Schwartzman Applicator having multiple valve assemblies

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954904A (en) * 1958-10-13 1960-10-04 Joseph B Potoczky Gas pressure type dispensing container cap
GB1226565A (en) * 1967-04-07 1971-03-31
US3976216A (en) * 1974-12-26 1976-08-24 Thermo Electron Corporation Sterile bottle closure
US4437592A (en) * 1979-12-21 1984-03-20 Bon Luigi Del Self-sealing actuating device for mounting on a discharge valve of a pressurized container
US4314658A (en) * 1980-01-30 1982-02-09 Laauwe Robert H Viscous product dispensing squeeze bottle having a self-venting automatic shut-off valve
EP0196737A2 (en) * 1985-01-28 1986-10-08 Earl Wright Company Foam dispensing device
DE8524966U1 (en) * 1985-08-31 1987-01-22 Bramlage Gmbh, 2842 Lohne Screw cap for bottles or similar.
US4813577A (en) * 1988-03-04 1989-03-21 Carow International, Inc. Multiple flow dispensing cap

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027890A1 (en) * 1993-05-24 1994-12-08 Deutsche Präzisions Ventil Gmbh Actuator for an aerosol container
US5730332A (en) * 1993-05-24 1998-03-24 Zimmerhackel; Franz Actuator for an aerosol container
US5914085A (en) * 1993-05-24 1999-06-22 Zimmerhackel; Franz Actuator for an aerosol container
DE4426120A1 (en) * 1994-07-22 1996-01-25 Coster Tecnologie Speciali Spa Spray head for a container for a pressurized fluid
EP0699597A1 (en) * 1994-09-05 1996-03-06 L'oreal, S.A. Product, in particular foam dispenser for a valved pressurized container
FR2724154A1 (en) * 1994-09-05 1996-03-08 Oreal PRODUCT DISPENSER BIT, IN PARTICULAR FOAM FOR PRESSURIZED VALVE CONTAINER
DE19607691A1 (en) * 1996-02-29 1997-09-04 Coster Tecnologie Speciali Spa Foam head

Also Published As

Publication number Publication date
WO1990011236A1 (en) 1990-10-04
DE59009931D1 (en) 1996-01-11
BR9005967A (en) 1991-08-06
HU214724B (en) 1998-05-28
JP2867179B2 (en) 1999-03-08
ES2045604T3 (en) 1994-01-16
EP0388947B1 (en) 1993-09-22
DE3931679A1 (en) 1990-09-27
DE59008985D1 (en) 1995-06-01
EP0550409B1 (en) 1995-11-29
AR244577A1 (en) 1993-11-30
JPH03504826A (en) 1991-10-24
ES2071521T3 (en) 1995-06-16
CA2028850A1 (en) 1990-09-25
EP0388947A1 (en) 1990-09-26
EP0551146B1 (en) 1995-04-26
HU902832D0 (en) 1991-06-28
ES2080545T3 (en) 1996-02-01
EP0551146A1 (en) 1993-07-14
DE59002788D1 (en) 1993-10-28
AU624933B2 (en) 1992-06-25
AU5273790A (en) 1990-10-22
HUT56036A (en) 1991-07-29

Similar Documents

Publication Publication Date Title
EP0550409B1 (en) Sprayhead for a spray container for dispensing foam
DE60301829T2 (en) Dispensing device for a container with a valve
EP0850177B1 (en) Self-closing seal with a sealing membrane
DE69901796T2 (en) ACTUATOR COVER FOR A SOCKET
DE3829023C2 (en) Tilt lock for a container
DE69609440T2 (en) Device for storing and dispensing a liquid or pasty product
DE3244645C2 (en)
DE69413845T2 (en) TOGGLE OPERATED DISPENSER LOCK
DE69500764T2 (en) Actuator for the dispensing valve of an aerosol container
DE3125187A1 (en) CHILD-SAFE CAP FOR A PRESSURE CONTAINER
CH617146A5 (en)
DE69300151T2 (en) Actuator for an output element such as a pump or a valve.
EP0581158A2 (en) Foam cap
DE1775093A1 (en) Aerosol valve
DE19714275A1 (en) Spray quantity control nozzle for aerosol container
DE3425900A1 (en) DEVICE WITH DROP METER FOR DISPENSING A LIQUID OR PASTOUS SUBSTANCE
DE3119908A1 (en) ACTIVATION LOCK FOR AN AMPOULE
DE60310319T2 (en) Aerosol dispenser
WO2001094230A1 (en) Tilting nozzle cap which can be allocated to a container
DE69100582T2 (en) Actuator for dispensing valve.
DE69500028T2 (en) Product dispenser and push button for that device
DE69401422T2 (en) Push-down valve for atomizing a liquid and pressure vessel provided with this valve
DE1432279C2 (en) Valve actuation button for aerosol containers with outwardly protruding valve stem
DE2012437A1 (en) Cap with push button for aerosol container
DE69217661T2 (en) AEROSOL VALVE WITH TILT ACTUATION

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 388947

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19930529

17Q First examination report despatched

Effective date: 19940303

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 388947

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 59009931

Country of ref document: DE

Date of ref document: 19960111

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2080545

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960122

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080326

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080327

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080317

Year of fee payment: 19

Ref country code: DE

Payment date: 20080430

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080329

Year of fee payment: 19

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090322

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090322

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091123

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090323

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090323

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090322