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EP1698399A1 - Outlet cover for spraying device for spraying fluids of high viscosity. - Google Patents

Outlet cover for spraying device for spraying fluids of high viscosity. Download PDF

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Publication number
EP1698399A1
EP1698399A1 EP05028346A EP05028346A EP1698399A1 EP 1698399 A1 EP1698399 A1 EP 1698399A1 EP 05028346 A EP05028346 A EP 05028346A EP 05028346 A EP05028346 A EP 05028346A EP 1698399 A1 EP1698399 A1 EP 1698399A1
Authority
EP
European Patent Office
Prior art keywords
outlet
hood according
discharge hood
outlet channels
cylindrical wall
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
EP05028346A
Other languages
German (de)
French (fr)
Other versions
EP1698399B1 (en
Inventor
Stefan Dipl.-Ing. Christ
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.)
Aero Pump GmbH
Original Assignee
Aero Pump 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 Aero Pump GmbH filed Critical Aero Pump GmbH
Publication of EP1698399A1 publication Critical patent/EP1698399A1/en
Application granted granted Critical
Publication of EP1698399B1 publication Critical patent/EP1698399B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1021—Piston pumps having an outlet valve which is a gate valve
    • B05B11/1022—Piston pumps having an outlet valve which is a gate valve actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising 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
    • B65D83/7532—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets comprising alternative flow directions or replaceable or interchangeable outlets
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising 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
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16—Actuating means
    • B65D83/20—Actuator caps

Definitions

  • the invention relates to an attachable at the end of an outlet channel of a sprayer for highly viscous or gel-like media outlet hood whose bottom is uniformly thick and having relatively diverging exit channels.
  • Highly viscous or gel-like media are not aerosolizable.
  • it can be personal care products, medicines, gels and oils.
  • Such media can not be uniformly applied to a surface in the form of a spray of fine droplets with a conventional sprayer suitable for low viscosity liquids and having only one nozzle orifice.
  • From DE 103 21 902 A1 discloses a sprayer with an outlet hood of the type described is known in which therefore a plurality of diverging outlet channels are formed in the bottom of the outlet hood.
  • the outlet openings of all outlet channels lie on a circle.
  • the sprayed jets therefore form a hollow spray cone.
  • the sprayer In order to allow an approximately uniform spraying of a surface, the sprayer must be moved accordingly.
  • the outlet channels taper towards their outlet openings, and their cross-sectional shape is approximately quadrangular. The production of such outlet channels is difficult.
  • the invention has for its object to provide an outlet hood of the type mentioned, which is easier to manufacture and facilitates the handling of a sprayer provided with her.
  • this object is achieved in that the floor is curved outwards and the outlet channels over their entire thickness of the bottom corresponding length have a constant cross-section and are distributed over the floor.
  • the outlet channels can be formed easier due to their consistent cross-section.
  • the constant cross section allows the formation of very many outlet channels with a small cross-sectional area.
  • the outlet channels can therefore be relatively close to each other with the same strength of the bottom of the outlet hood compared to the generic outlet hood. This results in a correspondingly many thin Sprühstahlen, in conjunction with the distribution of the outlet channels over the bottom of the outlet hood a largely uniformly sprayed surface, without having to move the spray hood provided with the outlet hood relative to the surface to be sprayed.
  • outlet hood A particularly simple production of the outlet hood is then possible in such a way that the bottom of a flat plate which is perpendicular to its plane with the outlet channels, is pressed into the curved shape.
  • all outlet channels are formed at the same right angle to the plane of the plate.
  • the diverging direction of the outlet channels then results in a simple manner by pressing the curvature.
  • the outlet channels can be formed in a simple manner by means of a laser beam. This makes it possible to form the outlet channels not only relatively close to each other, but also very fine.
  • the exit channels can also be formed in an etching process.
  • the cross section of the outlet channels is round and the cross section is in the range of 5 to 50 micrometers.
  • the floor may be made of plastic. Preferably, however, it has metal. It can then be made relatively thin with sufficient strength and slightly cold formed to form the curvature.
  • a cylindrical wall can protrude opposite to the direction of curvature.
  • the cylindrical shape of the wall can also be easily manufactured.
  • the wall can also be made of metal. Preferably, however, it has thermoplastic. The plastic makes it possible to injection-coat the edge of the base simply in a mold with the cylindrical wall to connect the bottom and the wall.
  • cylindrical wall may also be prefabricated and the bottom press-fitted into one edge of the cylindrical wall.
  • At least the bottom can be coated on its inside with an oligodynamic substance.
  • an oligodynamic substance has a sterilizing and germicidal effect on a remainder of the medium remaining in the outlet hood after use of the spraying device, which after some time has been contaminated before the next use of the spraying device.
  • the inside of the cylindrical wall may be coated with the substance.
  • the substance may have a heavy metal. This substance is most easily applied to a metal floor. This is the heavy metal preferably silver. Gold or tin would also be possible.
  • the silver can be alloyed with copper.
  • an outlet hood 1 according to the invention in an actuating head 2 of a sprayer as is known from DE 102 31 751 B4, used at the end of an outlet channel 3.
  • the known sprayer is suitable for spraying a low-viscosity liquid in the form of an aerosol
  • the outlet hood 1 inserted into the actuating head 2 instead of the known spray insert allows the spraying of a highly viscous or gel-like medium, for example a personal care product, medicament, gel or oil, by manually exerting a pressure on the actuating head 2, which presses the medium from a container of the sprayer in the outlet channel 3 against a valve closure piece 4 displaceable therein, which then against the force of a spring 5 in the open position relative to an opening 6 in the outlet channel 3 postponed is, so that the medium can escape via the outlet hood 1.
  • a highly viscous or gel-like medium for example a personal care product, medicament, gel or oil
  • a uniformly thick, outwardly curved bottom 7 of the outlet hood 1 is provided with substantially uniformly distributed, directed perpendicular to its inner and outer outlet channels 8.
  • the curvature is preferably spherical.
  • the outlet channels therefore diverge relative to each other according to the curvature of the curvature of the bottom 7. They have over their the thickness of the bottom 7 corresponding length a constant circular cross-section and are relatively close together.
  • the bottom 7 has been made in such a way that an initially flat, round plate made of metal, here brass, has been provided perpendicular to its plane with the outlet channels 8 and then cold pressed into the curved shape. This deformation of the plate simultaneously results in the relative diverging course of the outlet channels 8.
  • the exit channels have been formed by means of a laser beam. But they can also be formed by etching the plate. In this case, a lithographic coating of the plate is provided with an agent resistant to the etchant, which is omitted at the points to be provided with the outlet channels of the plate and removed after the etching of these locations.
  • the bottom 7 is encapsulated at its edge with the edge of a cylindrical wall of thermoplastic material, for example POM (polyoxymethylene) or PP (polypropylene).
  • thermoplastic material for example POM (polyoxymethylene) or PP (polypropylene).
  • the bottom 7 may be fixed in the edge of the cylindrical wall 9 in a press fit.
  • cylindrical wall 9 may also be made of metal.
  • the container 7 may alternatively be made of plastic.
  • the bottom, and preferably also the cylindrical wall 9, are internally coated with an oligodynamic substance (not shown) which acts sterilizing and germicidal to prevent a remainder of the sprayed medium remaining after use of the sprayer in the outlet hood 1 from becoming later , reuse of the sprayer is contaminated with bacteria and / or harmful germs.
  • the substance contains a corresponding heavy metal, here silver or an alloy of silver and copper. Alternatively, gold or tin could be used.
  • the bottom 7 is therefore made of metal, as is the cylindrical wall 9, since metal is more easily plated with a metal.
  • the described shape of the outlet hood 1 is not only easy to produce, but also enables a uniform spraying of a limited surface, for example a relatively small part of a human skin or an eye, by means of a highly viscous or gel-like medium in the form of a spray cone from substantially evenly distributed jets of the medium, without having to move the outlet hood provided with the sprayer relative to the surface to be sprayed, provided that the surface is not larger than the spray cone cross section at an appropriate distance of the outlet hood from the surface to be sprayed.

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)
  • Coating Apparatus (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

Eine am Ende eines Auslaßkanals (3) eines Sprühgeräts für hochviskose oder gelartige Medien anbringbare Austrittshaube (1) hat einen gleichmäßig dicken Boden (7), in dem relativ zueinander divergierende Austrittskanäle (8) ausgebildet sind. Um die Herstellung der Austrittshaube und die Handhabung des mit ihr versehenen Sprühgeräts zu vereinfachen, ist erfindungsgemäß dafür gesorgt, daß der Boden (7) nach außen gewölbt ist und die Austrittskanäle (8) über ihre gesamte der Dicke des Bodens (7) entsprechende Länge einen gleichbleibenden Querschnitt aufweisen und über den Boden (7) verteilt angeordnet sind.

Figure imgaf001
An outlet hood (1) which can be attached to the end of an outlet channel (3) of a spraying device for highly viscous or gelatinous media has a uniformly thick bottom (7), in which outlet channels (8) diverging relative to one another are formed. In order to simplify the production of the outlet hood and the handling of the sprayer provided with it, according to the invention it is ensured that the bottom (7) is arched outwards and the outlet channels (8) over their entire the thickness of the bottom (7) corresponding length have constant cross-section and distributed over the bottom (7) are arranged.
Figure imgaf001

Description

Die Erfindung bezieht sich auf eine am Ende eines Auslaßkanals eines Sprühgeräts für hochviskose oder gelartige Medien anbringbare Austrittshaube, deren Boden gleichmäßig dick ist und relativ zueinander divergierende Austrittskanäle aufweist.The invention relates to an attachable at the end of an outlet channel of a sprayer for highly viscous or gel-like media outlet hood whose bottom is uniformly thick and having relatively diverging exit channels.

Hochviskose oder gelartige Medien sind nicht aerosolbildungsfähig. Beispielsweise kann es sich um Körperpflegemittel, Arzneimittel, Gele und Öle handeln. Solche Medien lassen sich nicht mit einem herkömmlichen Sprühgerät, das für niedrigviskose Flüssigkeiten geeignet ist und nur eine Düsenöffnung aufweist, in Form eines Sprühkegels aus feinen Tröpfchen gleichmäßig auf eine Oberfläche auftragen.Highly viscous or gel-like media are not aerosolizable. For example, it can be personal care products, medicines, gels and oils. Such media can not be uniformly applied to a surface in the form of a spray of fine droplets with a conventional sprayer suitable for low viscosity liquids and having only one nozzle orifice.

Aus der DE 103 21 902 A1 ist ein Sprühgerät mit einer Austrittshaube der eingangs geschilderten Art bekannt, bei der daher mehrere divergierende Austrittskanäle im Boden der Austrittshaube ausgebildet sind. Die Austrittsöffnungen aller Austrittskanäle liegen jedoch auf einem Kreis. Die ausgesprühten Strahlen bilden daher einen hohlen Sprühkegel. Um ein annähernd gleichmäßiges Besprühen einer Oberfläche zu ermöglichen, muß das Sprühgerät entsprechend bewegt werden. Ferner verjüngen sich die Austrittskanäle zu ihren Austrittsöffnungen hin, und ihre Querschnittsform ist etwa viereckig. Die Herstellung solcher Austrittskanäle ist schwierig.From DE 103 21 902 A1 discloses a sprayer with an outlet hood of the type described is known in which therefore a plurality of diverging outlet channels are formed in the bottom of the outlet hood. The outlet openings of all outlet channels, however, lie on a circle. The sprayed jets therefore form a hollow spray cone. In order to allow an approximately uniform spraying of a surface, the sprayer must be moved accordingly. Furthermore, the outlet channels taper towards their outlet openings, and their cross-sectional shape is approximately quadrangular. The production of such outlet channels is difficult.

Der Erfindung liegt die Aufgabe zugrunde, eine Austrittshaube der eingangs genannten Art anzugeben, die einfacher herstellbar ist und die Handhabung eines mit ihr versehenen Sprühgeräts erleichtert.The invention has for its object to provide an outlet hood of the type mentioned, which is easier to manufacture and facilitates the handling of a sprayer provided with her.

Erfindungsgemäß ist diese Aufgabe dadurch gelöst, daß der Boden nach außen gewölbt ist und die Austrittskanäle über ihre gesamte der Dicke des Bodens entsprechende Länge einen gleichbleibenden Querschnitt aufweisen und über den Boden verteilt angeordnet sind.According to the invention, this object is achieved in that the floor is curved outwards and the outlet channels over their entire thickness of the bottom corresponding length have a constant cross-section and are distributed over the floor.

Bei dieser Lösung lassen sich die Austrittskanäle aufgrund ihres gleichbleibenden Querschnitts einfacher ausbilden. Der gleichbleibende Querschnitt ermöglicht die Ausbildung sehr vieler Austrittskanäle mit kleiner Querschnittsfläche. Die Austrittskanäle können daher bei gleicher Festigkeit des Bodens der Austrittshaube im Vergleich zur gattungsgemäßen Austrittshaube relativ dicht beieinander liegen. Dadurch ergeben sich entsprechend viele dünne Sprühstahlen, die in Verbindung mit der Verteilung der Austrittskanäle über den Boden der Austrittshaube eine weitgehend gleichmäßig besprühte Oberfläche, ohne das mit der Austrittshaube versehene Sprühgerät relativ zu der zu besprühenden Oberfläche bewegen zu müssen.In this solution, the outlet channels can be formed easier due to their consistent cross-section. The constant cross section allows the formation of very many outlet channels with a small cross-sectional area. The outlet channels can therefore be relatively close to each other with the same strength of the bottom of the outlet hood compared to the generic outlet hood. This results in a correspondingly many thin Sprühstahlen, in conjunction with the distribution of the outlet channels over the bottom of the outlet hood a largely uniformly sprayed surface, without having to move the spray hood provided with the outlet hood relative to the surface to be sprayed.

Eine besonders einfache Herstellung der Austrittshaube ist dann in der Weise möglich, daß der Boden aus einer ebenen Platte, die senkrecht zu ihrer Ebene mit den Austrittskanälen versehen ist, in die gewölbte Form gedrückt wird. Hierbei werden alle Austrittskanäle unter dem gleichen rechten Winkel zur Ebene der Platte ausgebildet. Die divergierende Richtung der Austrittskanäle ergibt sich dann auf einfache Weise durch das Drücken der Wölbung.A particularly simple production of the outlet hood is then possible in such a way that the bottom of a flat plate which is perpendicular to its plane with the outlet channels, is pressed into the curved shape. In this case, all outlet channels are formed at the same right angle to the plane of the plate. The diverging direction of the outlet channels then results in a simple manner by pressing the curvature.

Die Austrittskanäle können auf einfache Weise mittels Laser-Strahl ausgebildet sein. Dies ermöglicht es, die Austrittskanäle nicht nur relativ nahe beieinander, sondern auch sehr fein auszubilden.The outlet channels can be formed in a simple manner by means of a laser beam. This makes it possible to form the outlet channels not only relatively close to each other, but also very fine.

Alternativ können die Austrittskanäle auch in einem Ätzverfahren ausgebildet werden.Alternatively, the exit channels can also be formed in an etching process.

So ist es möglich, daß der Querschnitt der Austrittskanäle rund ist und der Querschnitt im Bereich von 5 bis 50 Mikrometer liegt.Thus, it is possible that the cross section of the outlet channels is round and the cross section is in the range of 5 to 50 micrometers.

Der Boden kann zwar aus Kunststoff bestehen. Vorzugsweise weist er jedoch Metall auf. Er kann dann bei hinreichender Festigkeit relativ dünn ausgebildet und leicht kalt verformt werden, um die Wölbung auszubilden.The floor may be made of plastic. Preferably, however, it has metal. It can then be made relatively thin with sufficient strength and slightly cold formed to form the curvature.

Am Rand des Bodens kann eine zylindrische Wand entgegengesetzt zur Wölbungsrichtung abstehen. Die zylindrische Form der Wand läßt sich ebenfalls leicht herstellen.At the edge of the bottom, a cylindrical wall can protrude opposite to the direction of curvature. The cylindrical shape of the wall can also be easily manufactured.

Die Wand kann ebenfalls aus Metall hergestellt sein. Vorzugsweise weist sie jedoch thermoplastischen Kunststoff auf. Der Kunststoff ermöglicht es, den Rand des Bodens einfach im Spritzgußverfahren in einem Formwerkzeug mit der zylindrischen Wand zu umspritzen, um den Boden und die Wand zu verbinden.The wall can also be made of metal. Preferably, however, it has thermoplastic. The plastic makes it possible to injection-coat the edge of the base simply in a mold with the cylindrical wall to connect the bottom and the wall.

Alternativ kann die zylindrische Wand auch vorgefertigt und der Boden im Preßsitz in dem einen Rand der zylindrischen Wand befestigt werden.Alternatively, the cylindrical wall may also be prefabricated and the bottom press-fitted into one edge of the cylindrical wall.

Sodann kann zumindest der Boden auf seiner Innenseite mit einer oligodynamischen Substanz beschichtet sein. Eine solche Substanz wirkt sterilisierend und keimtötend auf einen nach einer Benutzung des Sprühgeräts in der Austrittshaube verbliebenen Rest des Mediums, der nach einiger Zeit vor der nächsten Benutzung des Sprühgeräts kontaminiert wurde.Then at least the bottom can be coated on its inside with an oligodynamic substance. Such a substance has a sterilizing and germicidal effect on a remainder of the medium remaining in the outlet hood after use of the spraying device, which after some time has been contaminated before the next use of the spraying device.

Auch die Innenseite der zylindrischen Wand kann mit der Substanz beschichtet sein. Je größer die beschichtete Fläche ist, um so größer ist die Wirkung der Substanz.Also, the inside of the cylindrical wall may be coated with the substance. The larger the coated area, the greater the effect of the substance.

Die Substanz kann ein Schwermetall aufweisen. Diese Substanz läßt sich am einfachsten auf einem Metall-Boden fest aufbringen. Bei dem Schwermetall handelt es sich vorzugsweise um Silber. Gold oder Zinn wären ebenfalls möglich.The substance may have a heavy metal. This substance is most easily applied to a metal floor. This is the heavy metal preferably silver. Gold or tin would also be possible.

Das Silber kann dabei mit Kupfer legiert sein.The silver can be alloyed with copper.

Die Erfindung und ihre Weiterbildungen werden nachstehend anhand der beiliegenden Zeichnung eines Ausführungsbeispiels näher beschrieben. Darin stellen dar:

Fig. 1
einen Axialschnitt durch einen Betätigungskopf eines bekannten Sprühgeräts, das jedoch mit einer erfindungsgemäßen Austrittshaube versehen ist, und
Fig. 2
eine perspektivische Darstellung der Austrittshaube in vergrößertem Maßstab.
The invention and its developments are described below with reference to the accompanying drawings of an embodiment. In it represent:
Fig. 1
an axial section through an actuating head of a known sprayer, but which is provided with an outlet hood according to the invention, and
Fig. 2
a perspective view of the outlet hood in an enlarged scale.

Nach Fig. 1 ist eine erfindungsgemäße Austrittshaube 1 in einem Betätigungskopf 2 eines Sprühgeräts, wie es aus der DE 102 31 751 B4 bekannt ist, am Ende eines Außlaßkanals 3 eingesetzt. Während das bekannte Sprühgerät zum Versprühen einer niedrigviskosen Flüssigkeit in Form eines Aerosols geeignet ist, ermöglicht die anstelle des bekannten Sprüheinsatzes mit Wirbelkammer in den Betätigungskopf 2 eingesetzte Austrittshaube 1 das Versprühen eines hochviskosen oder gelartigen Mediums, zum Beispiel ein Körperpflegemittel, Arzneimittel, Gel oder Öl, durch manuelle Ausübung eines Drucks auf den Betätigungskopf 2, der das Medium aus einem Behälter des Sprühgeräts in den Austrittskanal 3 gegen ein darin verschiebbares Ventilverschlußstück 4 drückt, das dann gegen die Kraft einer Feder 5 in die Offen-Stellung relativ zu einer Öffnung 6 im Austrittskanal 3 verschoben wird, so daß das Medium über die Austrittshaube 1 austreten kann.1, an outlet hood 1 according to the invention in an actuating head 2 of a sprayer, as is known from DE 102 31 751 B4, used at the end of an outlet channel 3. While the known sprayer is suitable for spraying a low-viscosity liquid in the form of an aerosol, the outlet hood 1 inserted into the actuating head 2 instead of the known spray insert allows the spraying of a highly viscous or gel-like medium, for example a personal care product, medicament, gel or oil, by manually exerting a pressure on the actuating head 2, which presses the medium from a container of the sprayer in the outlet channel 3 against a valve closure piece 4 displaceable therein, which then against the force of a spring 5 in the open position relative to an opening 6 in the outlet channel 3 postponed is, so that the medium can escape via the outlet hood 1.

Um das Medium gleichmäßig auf eine Oberfläche zu sprühen, ist ein gleichmäßig dicker, nach außen gewölbter Boden 7 der Austrittshaube 1 mit weitgehend gleichmäßig verteilten, senkrecht zu seiner Innen- und Außenseite gerichteten Austrittskanälen 8 versehen. Die Wölbung ist vorzugsweise sphärisch. Die Austrittskanäle divergieren daher relativ zueinander entsprechend der Krümmung der Wölbung des Bodens 7. Sie haben über ihre der Dicke des Bodens 7 entsprechende Länge einen gleichbleibenden runden Querschnitt und liegen relativ dicht beieinander. Der Boden 7 ist in der Weise hergestellt worden, daß eine zunächst ebene, runde Platte aus Metall, hier Messing, senkrecht zu ihrer Ebene mit den Austrittskanälen 8 versehen und dann kalt in die gewölbte Form gedrückt worden ist. Diese Verformung der Platte ergibt gleichzeitig den relativ zueinander divergierenden Verlauf der Austrittskanäle 8.In order to spray the medium evenly on a surface, a uniformly thick, outwardly curved bottom 7 of the outlet hood 1 is provided with substantially uniformly distributed, directed perpendicular to its inner and outer outlet channels 8. The curvature is preferably spherical. The outlet channels therefore diverge relative to each other according to the curvature of the curvature of the bottom 7. They have over their the thickness of the bottom 7 corresponding length a constant circular cross-section and are relatively close together. The bottom 7 has been made in such a way that an initially flat, round plate made of metal, here brass, has been provided perpendicular to its plane with the outlet channels 8 and then cold pressed into the curved shape. This deformation of the plate simultaneously results in the relative diverging course of the outlet channels 8.

Die Austrittskanäle sind mittels eines Laser-Strahls ausgebildet worden. Sie können aber auch durch Ätzen der Platte ausgebildet sein. Dabei wird eine lithografische Beschichtung der Platte mit einem gegen das Ätzmittel resistenten Mittel, das an den mit den Austrittskanälen zu versehenden Stellen der Platte weggelassen und nach dem Ätzen dieser Stellen entfernt wird.The exit channels have been formed by means of a laser beam. But they can also be formed by etching the plate. In this case, a lithographic coating of the plate is provided with an agent resistant to the etchant, which is omitted at the points to be provided with the outlet channels of the plate and removed after the etching of these locations.

Der Boden 7 ist an seinem Rand mit dem Rand einer zylindrischen Wand aus thermoplastischen Kunststoff, zum Beispiel POM (Polyoximethylen) oder PP (Polypropylen) umspritzt.The bottom 7 is encapsulated at its edge with the edge of a cylindrical wall of thermoplastic material, for example POM (polyoxymethylene) or PP (polypropylene).

Alternativ kann der Boden 7 im Rand der zylindrischen Wand 9 im Preßsitz befestigt sein.Alternatively, the bottom 7 may be fixed in the edge of the cylindrical wall 9 in a press fit.

Statt aus Kunststoff kann die zylindrische Wand 9 auch aus Metall bestehen.Instead of plastic, the cylindrical wall 9 may also be made of metal.

Dagegen kann der Behälter 7 alternativ aus Kunststoff bestehen.In contrast, the container 7 may alternatively be made of plastic.

Der Boden und vorzugsweise auch die zylindrische Wand 9 sind innen mit einer (nicht dargestellten) oligodynamischen Substanz beschichtet, die sterilisierend und keimtötend wirkt, um zu verhindern, daß ein nach einer Benutzung des Sprühgeräts in der Austrittshaube 1 verbliebener Rest des versprühten Mediums vor einer späteren, erneuten Benutzung des Sprühgeräts mit Bakterien und/oder schädlichen Keimen kontaminiert wird. Die Substanz enthält ein entsprechendes Schwermetall, hier Silber oder eine Legierung aus Silber und Kupfer. Alternativ könnte auch Gold oder Zinn verwendet werden.The bottom, and preferably also the cylindrical wall 9, are internally coated with an oligodynamic substance (not shown) which acts sterilizing and germicidal to prevent a remainder of the sprayed medium remaining after use of the sprayer in the outlet hood 1 from becoming later , reuse of the sprayer is contaminated with bacteria and / or harmful germs. The substance contains a corresponding heavy metal, here silver or an alloy of silver and copper. Alternatively, gold or tin could be used.

Vorzugsweise, aber nicht notwendigerweise, besteht der Boden 7 daher aus Metall, desgleichen die zylindrische Wand 9, da sich Metall leichter mit einem Metall galvanisch beschichten läßt.Preferably, but not necessarily, the bottom 7 is therefore made of metal, as is the cylindrical wall 9, since metal is more easily plated with a metal.

Die beschriebene Form der Austrittshaube 1 ist nicht nur einfach herstellbar, sondern ermöglicht auch ein gleichmäßiges Besprühen einer begrenzten Oberfläche, zum Beispiel eines relativ kleinen Teils einer menschlichen Haut oder eines Auges, mittels eines hochviskosen oder gelartigen Mediums in Form eines Sprühkegels aus weitgehend gleichmäßig verteilten Strahlen des Mediums, ohne dabei das mit der Austrittshaube versehene Sprühgerät relativ zu der zu besprühenden Oberfläche bewegen zu müssen, sofern die Oberfläche nicht größer als der Sprühkegel-Querschnitt in angemessener Entfernung der Austrittshaube von der zu besprühenden Oberfläche ist.The described shape of the outlet hood 1 is not only easy to produce, but also enables a uniform spraying of a limited surface, for example a relatively small part of a human skin or an eye, by means of a highly viscous or gel-like medium in the form of a spray cone from substantially evenly distributed jets of the medium, without having to move the outlet hood provided with the sprayer relative to the surface to be sprayed, provided that the surface is not larger than the spray cone cross section at an appropriate distance of the outlet hood from the surface to be sprayed.

Claims (14)

Am Ende eines Auslaßkanals (3) eines Sprühgeräts für hochviskose oder gelartige Medien anbringbare Austrittshaube (1), deren Boden (7) gleichmäßig dick ist und relativ zueinander divergierende Austrittskanäle (8) aufweist, dadurch gekennzeichnet, daß der Boden (7) nach außen gewölbt ist und die Austrittskanäle (8) über ihre gesamte der Dicke des Bodens (7) entsprechende Länge einen gleichbleibenden Querschnitt aufweisen und über den Boden (7) verteilt angeordnet sind.At the end of an outlet channel (3) of a sprayer for highly viscous or gelatinous media attachable outlet hood (1) whose bottom (7) is uniformly thick and relative to each other diverging outlet channels (8), characterized in that the bottom (7) arched outwards is and the outlet channels (8) over their entire the thickness of the bottom (7) corresponding length have a constant cross section and distributed over the bottom (7) are arranged. Austrittshaube nach Anspruch 1, dadurch gekennzeichnet, daß der Boden (7) aus einer ebenen Platte, die senkrecht zu ihrer Ebene mit den Austrittskanälen versehen ist, in die gewölbte Form gedrückt ist.The outlet hood according to claim 1, characterized in that the bottom (7) is pressed out of a flat plate, which is provided perpendicular to its plane with the outlet channels, in the curved shape. Austrittshaube nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Austrittskanäle (8) mittels Laser-Strahl ausgebildet sind.Discharge hood according to claim 1 or 2, characterized in that the outlet channels (8) are formed by means of a laser beam. Austrittshaube nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Querschnitt der Austrittskanäle (8) rund ist und der Querschnitt im Bereich von 5 bis 50 Mikrometer liegt.Discharge hood according to one of claims 1 to 3, characterized in that the cross-section of the outlet channels (8) is round and the cross-section is in the range of 5 to 50 micrometers. Austrittshaube nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Boden (7) Metall aufweist.Discharge hood according to one of claims 1 to 4, characterized in that the bottom (7) comprises metal. Austrittshaube nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß am Rand des Bodens (7) eine zylindrische Wand (9) entgegengesetzt zur Wölbungsrichtung absteht.Discharge hood according to one of claims 1 to 5, characterized in that at the edge of the bottom (7) a cylindrical wall (9) protrudes opposite to the dome direction. Austrittshaube nach Anspruch 6, dadurch gekennzeichnet, daß die zylindrische Wand (9) thermoplastischen Kunststoff aufweist.A discharge hood according to claim 6, characterized in that the cylindrical wall (9) comprises thermoplastic material. Austrittshaube nach Anspruch 7, dadurch gekennzeichnet, daß der Rand des Bodens (7) mit der zylindrischen Wand (9) umspritzt ist.Discharge hood according to claim 7, characterized in that the edge of the bottom (7) is encapsulated with the cylindrical wall (9). Austrittshaube nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß der Boden (7) im Preßsitz in dem einen Rand der zylindrischen Wand (9) befestigt ist.Discharge hood according to claim 6 or 7, characterized in that the bottom (7) is press-fitted in one edge of the cylindrical wall (9). Austrittshaube nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß zumindest der Boden (7) auf seiner Innenseite mit einer oligodynamischen Substanz beschichtet ist.Discharge hood according to one of claims 1 to 9, characterized in that at least the bottom (7) coated on its inside with an oligodynamic substance. Austrittshaube nach Anspruch 10, dadurch gekennzeichnet, daß die Innenseite der zylindrischen Wand (9) mit der Substanz beschichtet ist.Discharge hood according to claim 10, characterized in that the inside of the cylindrical wall (9) is coated with the substance. Austrittshaube nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Substanz ein Schwermetall aufweist.Discharge hood according to claim 10 or 11, characterized in that the substance has a heavy metal. Austrittshaube nach Anspruch 12, dadurch gekennzeichnet, daß das Schwermetall Silber ist.The outlet hood according to claim 12, characterized in that the heavy metal is silver. Austrittshaube nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, daß die Substanz eine Legierung aus Silber und Kupfer aufweist.Discharge hood according to one of claims 10 to 13, characterized in that the substance comprises an alloy of silver and copper.
EP05028346A 2005-03-05 2005-12-23 Outlet cover for spraying device for spraying fluids of high viscosity. Expired - Lifetime EP1698399B1 (en)

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Also Published As

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DE102005010173B4 (en) 2006-11-16
DE102005010173A1 (en) 2006-09-14
US7481382B2 (en) 2009-01-27
DE502005005877D1 (en) 2008-12-18
EP1698399B1 (en) 2008-11-05
DK1698399T3 (en) 2009-02-23
ES2314552T3 (en) 2009-03-16
ATE413228T1 (en) 2008-11-15
US20060213408A1 (en) 2006-09-28

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