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EP0538543A1 - Actuator cap for an aerosol dispenser - Google Patents

Actuator cap for an aerosol dispenser Download PDF

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Publication number
EP0538543A1
EP0538543A1 EP92102380A EP92102380A EP0538543A1 EP 0538543 A1 EP0538543 A1 EP 0538543A1 EP 92102380 A EP92102380 A EP 92102380A EP 92102380 A EP92102380 A EP 92102380A EP 0538543 A1 EP0538543 A1 EP 0538543A1
Authority
EP
European Patent Office
Prior art keywords
bore
control member
inlet opening
axial bore
internal pressure
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.)
Ceased
Application number
EP92102380A
Other languages
German (de)
French (fr)
Inventor
Louis Pericard
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 EP0538543A1 publication Critical patent/EP0538543A1/en
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/44Valves specially adapted for the discharge of contents; Regulating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16Actuating means
    • B65D83/20Actuator caps

Definitions

  • the invention relates to an actuating attachment for a spray container, which contains a fluid product which is exposed to gas pressure and contains a dispensing valve in a dispensing channel which can be actuated by the actuating attachment so that the product flows out through the dispensing channel when the dispensing valve is open,
  • the actuating attachment being a has an axial bore that can be coupled to the output channel, a transverse bore leading from the axial bore to an outlet nozzle, and a control member for flow control with a throttle bore that is appropriately inserted and axially displaceable in the axial bore.
  • control member is designed as a rubber washer, which is pressed axially against an opening of the axial bore which is coaxial with the throttle bore of the control member, the rubber washer depending radially is deformed by the internal pressure of the spray container, so that the flow cross section of the throttle bore is narrowed with increasing internal pressure.
  • the constriction of the bore is correspondingly less and thus the passage cross section is larger. Since the flow is a function of the internal pressure and the cross section of the passage, it remains largely constant regardless of the internal pressure.
  • rubber-elastic material has the property that it swells when it comes into contact with certain liquids, for example fatty or oily liquids, as are often contained in such spray cans.
  • certain liquids for example fatty or oily liquids
  • the nominal dimensions of rubber-elastic parts cannot be adhered to with tight tolerances during manufacture, apart from the fact that they are temperature-dependent and change over time due to signs of aging.
  • the aim is to keep the passage cross-section very small, for example around 0.2 mm2, the flow is significantly dependent on the exact adherence to the nominal dimensions of the control element.
  • the invention has for its object to provide an actuating attachment of the generic type, in which the flow is maintained with greater accuracy when the dispensing valve is open.
  • control member can be displaced by the internal pressure of the spray container against spring force via the inlet opening of the transverse bore up to a stop which stops the control member in a position in which it blocks most of the inlet opening and that the control member is made of largely rigid material.
  • control valve and the inlet opening of the transverse bore form a flow control valve which keeps the flow largely constant regardless of the internal pressure.
  • the throttle bore in the control valve also contributes, if only to a small extent, to keeping the flow constant, because at high internal pressure it offers a somewhat higher flow resistance than at lower internal pressure, so that this ensures a certain constant flow independent of the internal pressure is.
  • the throttle bore avoids an excessive amount of leakage when the dispensing valve is actuated from the outset.
  • the control element can be made of relatively hard plastic, which is largely resistant to aging and insensitive to the product contained in the spray container.
  • the inlet opening of the transverse bore is designed as an axial slot in the form of a rectangle. In this way, a linear dependence of the flow cross-section of the inlet opening on the internal pressure and thus an even higher constancy of the flow is ensured.
  • the actuating attachment shown serves to actuate a dispensing valve of a spray container, not shown, which contains a fluid product exposed to gas pressure.
  • the actuating attachment has approximately the shape of a hood with a coaxial inner tube 1 which delimits an axial bore 2.
  • the tube 1 is plugged onto a valve stem of the dispensing valve, which forms part of the dispensing channel of the spray container, so that it is frictionally connected to the dispensing valve.
  • the dispensing valve is opened in a conventional manner, so that the product flows out through the dispensing channel under the gas pressure prevailing in the spray container.
  • a transverse bore 3 leads to an outlet nozzle 4.
  • a control element 5 is inserted in a suitable manner and is axially displaceable. It has the shape of a circular cylinder with a central transverse wall 6, in which a coaxial throttle bore 7 is formed.
  • a helical spring 8 is arranged between the transverse wall 6 and the upper end of the axial bore 2 designed as a blind bore.
  • the control element 5 can be moved by the internal pressure of the spray container against the force of the helical spring 8 via the inlet opening 9 of the transverse bore 3 up to a stop 10 which stops the control element 5 in a position in which it blocks most of the inlet opening 9.
  • the inlet opening 9 of the transverse bore 3 is designed as an axial slot in the form of a rectangle (see Fig. 2).
  • the stop 10 is divided by approximately V-shaped interruptions 11 into a plurality of radial and axial projections. From the inlet opening 9, the transverse bore 3 widens in the form of flat surfaces which are approximately semi-elliptical in side view, except for a circular cross section.
  • the transverse bore 3 merges into an annular groove 12, into which an approximately hood-like insert 13 is inserted with its circumferential wall so that it lies tightly against the radially outer wall of the annular groove 12 and is at a distance from the radially inner wall, and thus a further annular groove 14 remains free.
  • the insert 13 has in the middle of its bottom a depression 15 which is initially circular cylindrical and then tapers conically towards the nozzle 4. Furthermore, in the bottom of the insert 13, converging grooves 16 are formed at the same angular intervals from its peripheral wall approximately tangentially to the central recess 15.
  • a pin 17 forming the radially inner wall of the annular groove 12 delimits on the one hand, together with the recess 15 in the insert 13, a swirl chamber and, on the other hand, together with the grooves 16 channels which are connected to the annular groove 14 at their wider ends.
  • the user presses with the finger on the slightly concave corrugated actuating surface of the actuating attachment.
  • the pressure gas from the spray tank Product pressed out flows through the axial bore 2, the throttle bore 7, the opening 9, the transverse bore 3, the annular groove 12, the annular groove 14, the grooves 16, the recess 15 and the nozzle 4 to the outside. It presses the control element 5 against the force of the coil spring 8 (upwards) in the direction of the inlet opening 9.
  • the coil spring 8 is dimensioned such that the control element 5 is immediately pressed against the stop 10 when the spray container is full and the maximum internal pressure is reached. as shown in Fig. 3.
  • the helical spring 8 pushes the control member 5 further back against the internal pressure accordingly, so that the free passage cross section of the inlet opening 9 is increased accordingly and the flow is thus kept constant.
  • the container is largely emptied and the internal pressure is therefore very low, so that the control element 5 completely clears the inlet opening 9 and the outlet of the remaining product only through the throttle bore 7 and the nozzle 4 is throttled.

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

An actuator cap for an aerosol dispenser which contains a flowable product under gas pressure and a delivery valve in a delivery channel, which delivery valve can be actuated through the actuator cap so that the product flows out through the delivery channel when the delivery valve is open, has an axial bore (2) which is coupled to the delivery channel, a transverse bore (3) leading from the axial bore (2) to an outlet nozzle (4), and a control member (5) for controlling the throughflow, which member (5) is inserted to fit into the axial bore, is axially displaceable and has a throttle bore (7). In order to maintain the throughflow with greater accuracy when the delivery valve is open, the control member (5) is made of largely rigid material and is displaceable due to the internal pressure of the aerosol dispenser counter to spring force (8) via the entry aperture (9) of the transverse bore (3) up to a stop (10) which stops the control member (5) in a position in which it blocks the largest part of the entry aperture (9). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Betätigungsaufsatz für einen Sprühbehälter, der ein strömungsfähiges, einem Gasdruck ausgesetztes Produkt und in einem Ausgabekanal ein Ausgabeventil enthält, das durch den Betätigungsaufsatz betätigbar ist, so daß das Produkt bei geöffnetem Ausgabeventil durch den Ausgabekanal ausströmt, wobei der Betätigungsaufsatz eine an den Ausgabekanal ankuppelbare Axialbohrung, eine von der Axialbohrung zu einer Austrittsdüse führende Querbohrung und ein in der Axialbohrung passend eingesetzes und axial verschiebbares Regelglied zur Durchflußregelung mit einer Drosselbohrung aufweist.The invention relates to an actuating attachment for a spray container, which contains a fluid product which is exposed to gas pressure and contains a dispensing valve in a dispensing channel which can be actuated by the actuating attachment so that the product flows out through the dispensing channel when the dispensing valve is open, the actuating attachment being a has an axial bore that can be coupled to the output channel, a transverse bore leading from the axial bore to an outlet nozzle, and a control member for flow control with a throttle bore that is appropriately inserted and axially displaceable in the axial bore.

Bei einem bekannten Betätigungsaufsatz dieser Art (EP 234 797 B1) ist das Regelglied als Gummischeibe ausgebildet, die axial gegen eine zur Drosselbohrung des Regelgliedes koaxiale Öffnung der Axialbohrung gedrückt wird, wobei die Gummischeibe radial in Abhängigkeit vom Innendruck des Sprühbehälters verformt wird, so daß der Durchflußquerschnitt der Drosselbohrung mit zunehmendem Innendruck eingeengt wird. Mit abnehmendem Innendruck ist die Einengung der Bohrung entsprechend geringer und damit der Durchtrittsquerschnitt größer. Da der Durchfluß eine Funktion des Innendrucks und des Durchtrittsquerschnitts ist, bleibt er unabhängig vom Innendruck weitgehend konstant. Gummielastisches Material hat jedoch die Eigenschaft, daß es quillt, wenn es mit bestimmten Flüssigkeiten in Berührung kommt, z.B. fetthaltigen oder öligen Flüssigkeiten, wie sie häufig in derartigen Sprühdosen enthalten sind. Darüber hinaus lassen sich die Nennmaße gummielastischer Teile bei der Herstellung nicht mit engen Toleranzen einhalten, abgesehen davon, daß sie temperaturabhängig sind und sich im Laufe der Zeit durch Alterungserscheinungen ändern. Da man zur Vermeidung eines unnötigen Verbrauches des im Spraybehälter enthaltenen Produktes aber bestrebt ist, den Durchtrittsquerschnitt sehr klein zu halten, z.B. bei etwa 0,2 mm², ist der Durchfluß erheblich von der genauen Einhaltung der Nennmaße des Regelgliedes abhängig.In a known actuating attachment of this type (EP 234 797 B1), the control member is designed as a rubber washer, which is pressed axially against an opening of the axial bore which is coaxial with the throttle bore of the control member, the rubber washer depending radially is deformed by the internal pressure of the spray container, so that the flow cross section of the throttle bore is narrowed with increasing internal pressure. With decreasing internal pressure, the constriction of the bore is correspondingly less and thus the passage cross section is larger. Since the flow is a function of the internal pressure and the cross section of the passage, it remains largely constant regardless of the internal pressure. However, rubber-elastic material has the property that it swells when it comes into contact with certain liquids, for example fatty or oily liquids, as are often contained in such spray cans. In addition, the nominal dimensions of rubber-elastic parts cannot be adhered to with tight tolerances during manufacture, apart from the fact that they are temperature-dependent and change over time due to signs of aging. However, since in order to avoid unnecessary consumption of the product contained in the spray container, the aim is to keep the passage cross-section very small, for example around 0.2 mm², the flow is significantly dependent on the exact adherence to the nominal dimensions of the control element.

Der Erfindung liegt die Aufgabe zugrunde, einen Betätigungsaufsatz der gattungsgemäßen Art anzugeben, bei dem der Durchfluß bei geöffnetem Ausgabeventil mit höherer Genauigkeit eingehalten wird.The invention has for its object to provide an actuating attachment of the generic type, in which the flow is maintained with greater accuracy when the dispensing valve is open.

Erfindungsgemäß ist diese Aufgabe dadurch gelöst, daß das Regelglied durch den Innendruck des Sprühbehälters gegen Federkraft über die Eintrittsöffnung der Querbohrung bis gegen einen Anschlag verschiebbar ist, der das Regelglied in einer Lage anhält, in der es den größten Teil der Eintrittsöffnung blockiert und daß das Regelglied aus weitgehend starrem Material hergestellt ist.According to the invention, this object is achieved in that the control member can be displaced by the internal pressure of the spray container against spring force via the inlet opening of the transverse bore up to a stop which stops the control member in a position in which it blocks most of the inlet opening and that the control member is made of largely rigid material.

Bei dieser Lösung bilden das Regelventil und die Eintrittsöffnung der Querbohrung ein Durchfluß-Regelventil, das den Durchfluß unabhängig vom Innendruck weitgehend konstant hält. Die Drosselbohrung im Regelventil trägt ebenfalls, wenn auch nur zu einem geringen Teil, zur Konstanthaltung des Durchflusses bei, weil sie bei hohem Innendruck einen etwas höheren Durchflußwiderstand als bei niedrigerem Innendruck bietet, so daß schon dadurch eine gewisse, vom Innendruck unabhängige Konstanz des Durchflusses gewährleistet ist. Darüber hinaus vermeidet die Drosselbohrung schon von vornherein eine zu hohe Austrittsmenge bei Betätigung des Ausgabeventils. Wie schon bisher benötigt man kein zusätzliches Gehäuse für das Durchflußregelventil. Das Regelglied kann aus verhältnismäßig hartem Kunststoff hergestellt werden, der weitgehend alterungsbeständig und unempfindlich gegenüber dem im Sprühbehälter enthaltenen Produkt ist.In this solution, the control valve and the inlet opening of the transverse bore form a flow control valve which keeps the flow largely constant regardless of the internal pressure. The throttle bore in the control valve also contributes, if only to a small extent, to keeping the flow constant, because at high internal pressure it offers a somewhat higher flow resistance than at lower internal pressure, so that this ensures a certain constant flow independent of the internal pressure is. In addition, the throttle bore avoids an excessive amount of leakage when the dispensing valve is actuated from the outset. As before, there is no need for an additional housing for the flow control valve. The control element can be made of relatively hard plastic, which is largely resistant to aging and insensitive to the product contained in the spray container.

Vorzugsweise ist dafür gesorgt, daß die Eintrittsöffnung der Querbohrung als axialer Schlitz in Form eines Rechtecks ausgebildet ist. Auf diese Weise ist für eine lineare Abhängigkeit des Durchflußquerschnitts der Eintrittsöffnung vom Innendruck und damit für eine noch höhere Konstanz des Durchflusses gesorgt.It is preferably ensured that the inlet opening of the transverse bore is designed as an axial slot in the form of a rectangle. In this way, a linear dependence of the flow cross-section of the inlet opening on the internal pressure and thus an even higher constancy of the flow is ensured.

Die Erfindung und ihre Weiterbildungen werden nachstehend anhand der Zeichnung eines bevorzugten Ausführungsbeispiels näher beschrieben. Es zeigen:

Fig. 1
einen Axialschnitt durch einen erfindungsgemäßen Betätigungsaufsatz bei niedrigem Innendruck des Sprühbehälters,
Fig. 2
einen Vertikalschnitt in einer zu der Schnittebene der Fig. 1 senkrechten Ebene,
Fig.
3 die gleiche Schnittansicht wie Fig. 1, jedoch bei niedrigem Innendruck des Sprühbehälters,
Fig. 4
eine Rückansicht eines Einsatzes des Betätigungsaufsatzes und
Fig. 5
den Schnitt V-V der Fig. 4.
The invention and its developments are described below with reference to the drawing of a preferred embodiment. Show it:
Fig. 1
3 shows an axial section through an actuating attachment according to the invention at low internal pressure of the spray container,
Fig. 2
2 shows a vertical section in a plane perpendicular to the section plane of FIG. 1,
Fig.
3 shows the same sectional view as FIG. 1, but with a low internal pressure of the spray container,
Fig. 4
a rear view of an insert of the actuator and
Fig. 5
the section VV of FIG. 4th

Der dargestellte Betätigungsaufsatz dient zur Betätigung eines Ausgabeventils eines nicht dargestellten Sprühbehälters, der ein strömungsfähiges, einem Gasdruck ausgesetztes Produkt enthält. Der Betätigungsaufsatz hat etwa die Form einer Haube mit einem koaxialen inneren Rohr 1, das eine Axialbohrung 2 begrenzt. Das Rohr 1 wird auf einen einen Teil des Ausgabekanals des Sprühbehälters bildenden Ventilschaft des Ausgabeventils aufgesteckt, so daß es reibschlüssig mit diesem verbunden ist. Durch Niederdrücken des Ventilschaftes mittels des Betätigungsaufsatzes wird das Ausgabeventil in herkömmlicher Weise geöffnet, so daß das Produkt unter dem im Sprühbehälter herrschenden Gasdruck durch den Ausgabekanal ausströmt. In der Nähe des oberen Endes der Axialbohrung 2 führt eine Querbohrung 3 zu einer Austrittsdüse 4. In der Axialbohrung 2 ist ein Regelglied 5 passend eingesetzt und axial verschiebbar. Es hat die Form eines Kreiszylinders mit einer mittleren Querwand 6, in der eine koaxiale Drosselbohrung 7 ausgebildet ist. Zwischen der Querwand 6 und dem oberen Ende der als Sackbohrung ausgebildeten Axialbohrung 2 ist eine Schraubenfeder 8 angeordnet. Das Regelglied 5 ist durch den Innendruck des Sprühbehälters gegen die Kraft der Schraubenfeder 8 über die Eintrittsöffnung 9 der Querbohrung 3 bis gegen einen Anschlag 10 verschiebbar, der das Regelglied 5 in einer Lage anhält, in der es den größten Teil der Eintrittsöffnung 9 blockiert. Die Eintrittsöffnung 9 der Querbohrung 3 ist als axialer Schlitz in Form eines Rechtecks ausgebildet (siehe Fig. 2). Der Anschlag 10 ist durch etwa V-förmige Unterbrechungen 11 in mehrere radiale und axiale Vorsprünge unterteilt. Von der Eintrittsöffnung 9 erweitert sich die Querbohrung 3 in Form ebener, in der Seitenansicht etwa halbelliptischer Flächen bis auf einen kreisrunden Querschnitt.The actuating attachment shown serves to actuate a dispensing valve of a spray container, not shown, which contains a fluid product exposed to gas pressure. The actuating attachment has approximately the shape of a hood with a coaxial inner tube 1 which delimits an axial bore 2. The tube 1 is plugged onto a valve stem of the dispensing valve, which forms part of the dispensing channel of the spray container, so that it is frictionally connected to the dispensing valve. By depressing the valve stem by means of the actuating attachment, the dispensing valve is opened in a conventional manner, so that the product flows out through the dispensing channel under the gas pressure prevailing in the spray container. In the vicinity of the upper end of the axial bore 2, a transverse bore 3 leads to an outlet nozzle 4. In the axial bore 2, a control element 5 is inserted in a suitable manner and is axially displaceable. It has the shape of a circular cylinder with a central transverse wall 6, in which a coaxial throttle bore 7 is formed. A helical spring 8 is arranged between the transverse wall 6 and the upper end of the axial bore 2 designed as a blind bore. The control element 5 can be moved by the internal pressure of the spray container against the force of the helical spring 8 via the inlet opening 9 of the transverse bore 3 up to a stop 10 which stops the control element 5 in a position in which it blocks most of the inlet opening 9. The inlet opening 9 of the transverse bore 3 is designed as an axial slot in the form of a rectangle (see Fig. 2). The stop 10 is divided by approximately V-shaped interruptions 11 into a plurality of radial and axial projections. From the inlet opening 9, the transverse bore 3 widens in the form of flat surfaces which are approximately semi-elliptical in side view, except for a circular cross section.

Die Querbohrung 3 geht in eine Ringnut 12 über, in die ein etwa haubenartiger Einsatz 13 mit seiner Umfangswand so eingesetzt ist, daß diese an der radial äußeren Wand der Ringnut 12 dicht anliegt und zur radial inneren Wand einen Abstand aufweist und mithin eine weitere Ringnut 14 freibleibt.The transverse bore 3 merges into an annular groove 12, into which an approximately hood-like insert 13 is inserted with its circumferential wall so that it lies tightly against the radially outer wall of the annular groove 12 and is at a distance from the radially inner wall, and thus a further annular groove 14 remains free.

Wie die Fig. 4 und 5 deutlicher zeigen, hat der Einsatz 13 in der Mitte seines Bodens eine Vertiefung 15, die anfänglich kreiszylindrisch ist und sich dann konisch zur Düse 4 hin verjüngt. Ferner sind im Boden des Einsatzes 13 von dessen Umfangswand etwa tangential zur mittleren Vertiefung 15 konvergierende Nuten 16 in gleichen Winkelabständen ausgebildet.4 and 5 show more clearly, the insert 13 has in the middle of its bottom a depression 15 which is initially circular cylindrical and then tapers conically towards the nozzle 4. Furthermore, in the bottom of the insert 13, converging grooves 16 are formed at the same angular intervals from its peripheral wall approximately tangentially to the central recess 15.

Ein die radial innere Wand der Ringnut 12 (Fig. 1) bildender Zapfen 17 begrenzt einerseits zusammen mit der Vertiefung 15 im Einsatz 13 eine Wirbelkammer und andererseits zusammen mit den Nuten 16 Kanäle, die an ihren breiteren Enden mit der Ringnut 14 in Verbindung stehen.A pin 17 forming the radially inner wall of the annular groove 12 (FIG. 1) delimits on the one hand, together with the recess 15 in the insert 13, a swirl chamber and, on the other hand, together with the grooves 16 channels which are connected to the annular groove 14 at their wider ends.

Sodann ist der Betätigungsaufsatz zwischen seiner Umfangswand und dem Rohr 1 mit Versteifungsrippen 18 versehen.Then the actuating attachment between its peripheral wall and the tube 1 is provided with stiffening ribs 18.

Um das Ausgabeventil des Sprühbehälters zu öffnen, drückt der Benutzer mit dem Finger auf die leicht konkave geriffelte Betätigungsfläche des Betätigungsaufsatzes. Das daraufhin durch das Druckgas aus dem Sprühbehälter herausgedrückte Produkt strömt durch die Axialbohrung 2, die Drosselbohrung 7, die Öffnung 9, die Querbohrung 3, die Ringnut 12, die Ringnut 14, die Nuten 16, die Vertiefung 15 und die Düse 4 nach außen. Dabei drückt es das Regelglied 5 gegen die Kraft der Schraubenfeder 8 (nach oben) in Richtung auf die Eintrittsöffnung 9. Die Schraubenfeder 8 ist dabei so bemessen, daß das Regelglied 5 bei gefülltem Sprühbehälter und maximalem Innendruck sofort bis gegen den Anschlag 10 gedrückt wird, wie es in Fig. 3 dargestellt ist. In dieser Lage des Regelgliedes 5 kann das Produkt dennoch austreten, weil die Eintrittsöffnung 9 nicht vollständig durch das Regelglied 5 versperrt wird. Allerdings wird der Durchfluß durch die Drosselbohrung 7, den noch freiliegenden geringen Durchtrittsquerschnitt der Öffnung 9 und schließlich die ebenfalls als Drossel wirkende Düse 4 entsprechend stark gedrosselt. Auf diese Weise wird verhindert, daß eine zu große Produktmenge in unerwünschter Weise versprüht wird. Dennoch ist eine weitgehend feine Zerstäubung des Produktes sichergestellt, insbesondere durch die Verwirbelung des Produktes in der Vertiefung 15 des Einsatzes 13 mit dem Treibgas und der Luft.In order to open the dispensing valve of the spray container, the user presses with the finger on the slightly concave corrugated actuating surface of the actuating attachment. The pressure gas from the spray tank Product pressed out flows through the axial bore 2, the throttle bore 7, the opening 9, the transverse bore 3, the annular groove 12, the annular groove 14, the grooves 16, the recess 15 and the nozzle 4 to the outside. It presses the control element 5 against the force of the coil spring 8 (upwards) in the direction of the inlet opening 9. The coil spring 8 is dimensioned such that the control element 5 is immediately pressed against the stop 10 when the spray container is full and the maximum internal pressure is reached. as shown in Fig. 3. In this position of the control element 5, the product can still escape because the inlet opening 9 is not completely blocked by the control element 5. However, the flow through the throttle bore 7, the still exposed small passage cross section of the opening 9 and finally the nozzle 4, which also acts as a throttle, is throttled accordingly. This prevents an excessive amount of product from being sprayed in an undesirable manner. Nevertheless, a largely fine atomization of the product is ensured, in particular by swirling the product in the recess 15 of the insert 13 with the propellant gas and the air.

Wenn der Innendruck aufgrund einer wiederholten Betätigung des Sprühbehälters abnimmt, schiebt die Schraubenfeder 8 das Regelglied 5 gegen den Innendruck entsprechend weiter zurück, so daß der freie Durchtrittsquerschnitt der Eintrittsöffnung 9 entsprechend vergrößert und damit der Durchfluß weiterhin konstant gehalten wird. In der Lage des Regelgliedes 5 nach den Fig. 1 und 2 ist der Behälter weitgehend geleert und der Innendruck mithin sehr gering, so daß das Regelglied 5 die Eintrittsöffnung 9 völlig freigibt und der Austritt des restlichen Produktes nur noch durch die Drosselbohrung 7 und die Düse 4 gedrosselt wird.If the internal pressure decreases due to repeated actuation of the spray container, the helical spring 8 pushes the control member 5 further back against the internal pressure accordingly, so that the free passage cross section of the inlet opening 9 is increased accordingly and the flow is thus kept constant. In the position of the control element 5 according to FIGS. 1 and 2, the container is largely emptied and the internal pressure is therefore very low, so that the control element 5 completely clears the inlet opening 9 and the outlet of the remaining product only through the throttle bore 7 and the nozzle 4 is throttled.

Claims (2)

Betätigungsaufsatz für einen Sprühbehälter, der ein strömungsfähiges, einem Gasdruck ausgesetztes Produkt und in einem Ausgabekanal ein Ausgabeventil enthält, das durch den Betätigungsaufsatz betätigbar ist, so daß das Produkt bei geöffnetem Ausgabeventil durch den Ausgabekanal ausströmt, wobei der Betätigungsaufsatz eine an den Ausgabekanal ankuppelbare Axialbohrung (2), eine von der Axialbohrung (2) zu einer Austrittsdüse (4) führende Querbohrung (3) und ein in der Axialbohrung passend eingesetzes und axial verschiebbares Regelglied (5) zur Durchflußregelung mit einer Drosselbohrung (7) aufweist, dadurch gekennzeichnet, daß das Regelglied (5) durch den Innendruck des Sprühbehälters gegen Federkraft (8) über die Eintrittsöffnung (9) der Querbohrung (3) bis gegen einen Anschlag (10) verschiebbar ist, der das Regelglied (5) in einer Lage anhält, in der es den größten Teil der Eintrittsöffnung (9) blockiert und daß das Regelglied (5) aus weitgehend starrem Material hergestellt ist.Actuating attachment for a spray container, which contains a fluid product which is exposed to gas pressure and contains a dispensing valve in a dispensing channel which can be actuated by the actuating attachment, so that the product flows out through the dispensing channel when the dispensing valve is open, the actuating attachment having an axial bore which can be coupled to the dispensing channel ( 2), a transverse bore (3) leading from the axial bore (2) to an outlet nozzle (4) and an axially displaceable control member (5) inserted in the axial bore for flow control with a throttle bore (7), characterized in that Control element (5) can be moved by the internal pressure of the spray container against spring force (8) via the inlet opening (9) of the transverse bore (3) up to a stop (10) which stops the control element (5) in a position in which it Blocked most of the inlet opening (9) and that the control member (5) made of largely rigid mate rial is made. Betätigungsaufsatz nach Anspruch 1, dadurch gekennzeichnet, daß die Eintrittsöffnung (9) der Querbohrung (3) als axialer Schlitz in Form eines Rechtecks ausgebildet ist.Actuator attachment according to claim 1, characterized in that the inlet opening (9) of the transverse bore (3) is designed as an axial slot in the form of a rectangle.
EP92102380A 1991-10-23 1992-02-13 Actuator cap for an aerosol dispenser Ceased EP0538543A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4134885 1991-10-23
DE4134885A DE4134885C2 (en) 1991-10-23 1991-10-23 Actuator attachment for a spray container

Publications (1)

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EP0538543A1 true EP0538543A1 (en) 1993-04-28

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ID=6443190

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EP92102380A Ceased EP0538543A1 (en) 1991-10-23 1992-02-13 Actuator cap for an aerosol dispenser

Country Status (10)

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EP (1) EP0538543A1 (en)
JP (1) JPH05246474A (en)
CN (1) CN1071888A (en)
AU (1) AU654526B2 (en)
BR (1) BR9200969A (en)
CA (1) CA2062862A1 (en)
DE (1) DE4134885C2 (en)
HU (1) HU209099B (en)
MX (1) MX9201269A (en)
ZA (1) ZA922044B (en)

Cited By (6)

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FR2708908A1 (en) * 1993-08-11 1995-02-17 Oreal Spray nozzle push button intended to be mounted on a distributor and distributor equipped with such a push button.
EP0826608A1 (en) * 1996-08-28 1998-03-04 Kyowa Industrial Co., Ltd. Spray mechanism for an aerosol product
CN1048296C (en) * 1993-08-06 2000-01-12 法玛西雅厄普约翰公司 Process for the preparation of 9-amino camptothecin
WO2020207584A1 (en) * 2019-04-10 2020-10-15 Lindal France Sas Two-piece nozzle for aerosol dispensers
FR3114307A1 (en) * 2020-09-23 2022-03-25 L'oreal Device for packaging and distributing a product
IT202000023515A1 (en) * 2020-10-06 2022-04-06 Coster Tecnologie Speciali Spa FLUID SUBSTANCE DELIVERY DEVICE

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DE4417488A1 (en) * 1994-05-19 1995-11-23 Pfeiffer Erich Gmbh & Co Kg Discharge device for media
US6793156B2 (en) * 2002-02-28 2004-09-21 Saint-Gobain Calmar Inc. Orifice cup for manually actuated sprayer
CA2609486A1 (en) * 2005-05-27 2006-11-30 Yong-Soo Kim Dispenser
IT1390954B1 (en) * 2008-07-03 2011-10-27 Capsol Berry Plastics S P A DISPENSER CAP
CN101927875A (en) * 2010-07-15 2010-12-29 郭宵琦 Adjustable actuator of aerosol tank nozzle
EP3323753B1 (en) * 2016-11-17 2019-08-07 Aptar Radolfzell GmbH Discharge head and liquid dispenser with such a discharge head
CN111994484B (en) * 2019-05-27 2022-07-05 美丽华化妆品(上海)有限公司 Aerosol tank sprayer with adjustable spraying effect

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EP0315779A2 (en) * 1987-11-10 1989-05-17 F.P.D. Future Patents Development Company S.A. Sprayhead for a container containing a fluid under the pressure of a propelling gas

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DD212019A1 (en) * 1982-11-10 1984-08-01 Werding DEVICE FOR SHIFT REGULATION WITH THE HELP OF SPINE
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048296C (en) * 1993-08-06 2000-01-12 法玛西雅厄普约翰公司 Process for the preparation of 9-amino camptothecin
FR2708908A1 (en) * 1993-08-11 1995-02-17 Oreal Spray nozzle push button intended to be mounted on a distributor and distributor equipped with such a push button.
EP0826608A1 (en) * 1996-08-28 1998-03-04 Kyowa Industrial Co., Ltd. Spray mechanism for an aerosol product
WO2020207584A1 (en) * 2019-04-10 2020-10-15 Lindal France Sas Two-piece nozzle for aerosol dispensers
FR3114307A1 (en) * 2020-09-23 2022-03-25 L'oreal Device for packaging and distributing a product
WO2022063666A1 (en) 2020-09-23 2022-03-31 L'oreal Device for packaging and dispensing a product
IT202000023515A1 (en) * 2020-10-06 2022-04-06 Coster Tecnologie Speciali Spa FLUID SUBSTANCE DELIVERY DEVICE
EP3981709A1 (en) * 2020-10-06 2022-04-13 Coster Tecnologie Speciali S.p.A. A fluid substance dispensing device
US12208956B2 (en) 2020-10-06 2025-01-28 Coster Tecnologie Speciali S.P.A. Fluid substance dispensing device

Also Published As

Publication number Publication date
CA2062862A1 (en) 1993-04-24
DE4134885C2 (en) 1994-04-07
MX9201269A (en) 1993-04-01
AU1282992A (en) 1993-04-29
DE4134885A1 (en) 1993-04-29
HUT62526A (en) 1993-05-28
ZA922044B (en) 1992-11-25
HU209099B (en) 1994-03-28
CN1071888A (en) 1993-05-12
AU654526B2 (en) 1994-11-10
HU9201037D0 (en) 1992-06-29
BR9200969A (en) 1993-04-27
JPH05246474A (en) 1993-09-24

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