EP0443192A2 - Discharge head for fluids - Google Patents

Discharge head for fluids Download PDF

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Publication number
EP0443192A2
EP0443192A2 EP90125309A EP90125309A EP0443192A2 EP 0443192 A2 EP0443192 A2 EP 0443192A2 EP 90125309 A EP90125309 A EP 90125309A EP 90125309 A EP90125309 A EP 90125309A EP 0443192 A2 EP0443192 A2 EP 0443192A2
Authority
EP
European Patent Office
Prior art keywords
inner body
connecting member
discharge head
discharge
head according
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
EP90125309A
Other languages
German (de)
French (fr)
Other versions
EP0443192B1 (en
EP0443192A3 (en
Inventor
Lothar Graf
Peter Pfeiffer
Ernst Buhr
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.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
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Publication date
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Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0443192A2 publication Critical patent/EP0443192A2/en
Publication of EP0443192A3 publication Critical patent/EP0443192A3/en
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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
    • 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
    • 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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet

Definitions

  • the invention relates to a discharge head or a discharge device for flowable media, in particular liquids.
  • this discharge head can have a discharge opening or nozzle and a connecting member for connection to a counterpart, e.g. form a valve tappet, a pump piston or the like. of the discharge device, wherein it is preferably provided with an inserted inner body which extends approximately into the region of the discharge nozzle. This enables a simple structure and high strength to be achieved.
  • the invention is further based on the object of avoiding disadvantages of known solutions and, in particular, of creating a discharge head in which the operating forces which occur can be transmitted safely and directly.
  • the inner body can at least partially establish a direct connection to the counterpart, which it touches or on which it can be supported, so that essentially the entire actuating pressure is transmitted to the counterpart via the inner body and dead spaces can be reduced .
  • the connecting element is essentially formed by a component separate from the base body and firmly connected to the inner body, and is essentially freely located in the base body in such a way that it is not immediately closely encased by it, but at most at a radial distance.
  • the connecting member or the inner body can be supported directly on the base body with at least one end face or shoulder surface.
  • the other end of the inner body can also form a functional part of the discharge nozzle, namely in particular an inner nozzle core which is overlapped by a cap-shaped nozzle body and having the nozzle opening.
  • This nozzle body is expediently formed in one piece with the base body.
  • the design according to the invention is particularly suitable for such discharge devices in which the pump piston has an axially compressible piston sleeve to form an outlet valve, which surrounds a piston core forming a valve seat and is axially supported with its end remote from the piston relative to this piston core.
  • a one-piece pump piston with a shaft attachment on the connecting member or to form the pump piston in one piece with the connecting member or to provide no valve.
  • the one at that Connecting portion of the inner body can limit, for part or all of its length, an outlet channel located in it and / or an outlet channel located on its outer circumference as a connection between the pumping chamber or the outlet valve and the discharge nozzle.
  • the outlet channel also passes through the connecting member or the pump piston.
  • the inner body has longitudinal sections of different outer widths, which expediently decrease in the direction of the discharge nozzle.
  • a dead volume between the counterpart of the discharge device and the adjoining section of the outlet channel can also be avoided by the described configuration, the directly adjoining channel sections of the counterpart and the inner body expediently having approximately equal flow cross sections.
  • the inner body is advantageously accommodated in the base body with a radial press, the clamping force of which is greater than the radial pressure of a maximum operating pressure in the discharge channel. If the discharge channel lies completely within the inner body over a first part of its length and only on a subsequent, mechanically stiffer longitudinal section on the outer circumference, this configuration can be achieved relatively easily. This pressure prevents the discharge channel, although limited by two separate parts, from being elastically expanded or leaking under the operating pressure.
  • the discharge head 1 which is composed essentially of only two components, has a base body 2 which forms a cap 3 at one end and with its end wall a handle 4, over the other end surface of which a nozzle 5 projects.
  • This is essentially formed by an outer sleeve 6 directly adjoining the handle 4 and an inner sleeve 7 lying essentially without contact therein, which with its end remote from the cap 3 merges in one piece into the outer sleeve 6.
  • the connecting piece 5 forms a one-piece nozzle cap 8 with a nozzle bore 9 lying in the end wall, to which a swirl device 11 is directly assigned on the inside of the end wall. All components lie essentially in a central axis 10.
  • An essentially rod-shaped or shaft-shaped inner body 12 is inserted into the inner sleeve 7 of the base body 2 only by inserting its shaft 13, which has essentially smooth outer surfaces.
  • the shaft 13 forms an adjoining a connecting member 16, cylindrical shaft section 14, which merges via a frustoconical shoulder and contact-free with respect to the inner sleeve 7 into a cylindrical shaft section 15 of smaller diameter, which extends with its end face to the inner surface of the end wall of the nozzle cap 8 and can be provided with profiles to form the swirl device 11.
  • the connecting member 16 is completely free and immediately afterwards at the free end of the inner sleeve 7, by means of which it protrudes over the entire length and with respect to the outer sleeve 6 without contact into the cap 3, but is set back relative to the end of the cap.
  • the connecting member 16 serves as the only component for connecting the discharge head 1 to a discharge device which e.g. has a pump inserted into a container neck in a sealed manner for sucking medium from the container and for pushing this medium out through the nozzle 9 at each pump stroke.
  • the counterpart 17 has a shaft part 18 adapted to the connecting member 16 and corresponding to its inner length, the outer width of which approximately corresponds to that of the shaft 13.
  • the counterpart carries at its end remote from the shaft part 18 a pump piston 19 which is essentially formed by a piston sleeve 20 with a compressible neck and an enlarged piston lip and a piston core 21 which passes through the piston sleeve 20.
  • the piston core has a core shaft 22 directed against the connecting member 16, which has essentially the same outside width as the shaft part 18.
  • the piston core 21 could be formed in one piece with the shaft part 18 or form it and therefore be inserted directly into the connecting member 16, in which case the cuff neck would be axially supported at the end of the connecting member 16.
  • the shaft part 18 is formed by an intermediate piece 23, in the extended, in the outer width corresponding to the connecting member 16 socket part of the core shaft 22 is inserted by insertion so that the cuff neck is supported at the end of this socket part.
  • the inner circumference of the piston sleeve 20 forms with the outer circumference of the piston core 21 an outlet valve 24, which opens under a certain pressure in the pumping chamber of the pump 25 or by axially abutting the piston lip and compressing the collar of the neck into a channel section 27 which extends between the outer circumference of the core shaft 22 and the inner circumference of the piston sleeve 20 or the intermediate piece 23.
  • the channel section 27 adjoins a channel section 28 lying in the manner of a bore within the shaft part 18.
  • the channel sections 27, 28 belong to an outlet channel 29 which extends from the outlet valve 24 to the swirl device 11 or nozzle 9.
  • the shaft section 14 forms a channel section 30 which lies completely within its outer circumference and extends from the inside of the connecting member 16 and which, adjacent to the transition section between the shaft sections 14, 15, opens radially outward into a channel section 31 which is located between the outer circumference of the shaft section 15 and the inner circumference of the inner sleeve 7.
  • the channel section 31 formed, for example, by a longitudinal groove in the shaft section 15, which has substantially smaller passage cross sections than the channel section 30, extends as far as the swirl device 11.
  • the shaft sections 14, 15 engage in bore sections of a correspondingly graduated bore of the inner sleeve 7 which are adapted to them.
  • the essentially cup-shaped connecting member 16 has a jacket or a sleeve 32 which has approximately the same outer width as the inner sleeve 7 and connects to the latter within the outer sleeve 6 approximately without gaps.
  • the free end of the inner sleeve 7 is set back correspondingly with respect to the associated end of the outer sleeve 6 or the end wall of the cap 3.
  • the cuff 32 delimits an essentially cylindrical plug-in opening 33, from the flat bottom of which the channel section 30 extends and on the bottom of which the shaft part 18 lies in the inserted state, so that the channel section 28 directly adjoins the channel section 30.
  • the insertion opening 33 has an introducer 35 which is conically widened at an acute angle for the shaft part 18 which is correspondingly tapered at the free end. Between the ends of the cylindrical portion and slightly closer to the introducer 35 than the bottom 34, the insertion opening 33 has at least one slightly inwardly projecting, one-piece annular bead or the like. As a clamping ring and seal for the shaft part 18, so that it is easy to insert, then but is kept safe.
  • the bottom wall of the connecting member 16 forms an annular shoulder 37 for support on the end face of the inner sleeve 7.
  • the sleeve part of the intermediate piece 23 can have an annular shoulder for support on the end face of the connecting member 16.
  • this sleeve part, the collar 32 and the inner sleeve 7 form a common, continuously and essentially continuously continuous outer peripheral surface.
  • the connecting member 16 can thus move into the pump 25 or its associated cylinder cover until the cap end wall strikes with its inner surface.
  • the connecting member 16 is significantly shorter than the shaft 13 and several times longer than its outer width.
  • the shaft section 15 is longer than the shaft section 14.
  • the plug opening 33 lies completely outside the inner sleeve 7.

Abstract

A discharge head (1) holds the shaft (13) of an inner element (12) in the inner sleeve (7) of a discharge connecting piece (5) approximately over its entire length in such a way that the inner element (12) forms adjacent to the end of the inner neck (7) a connecting element (16), which is separate from said neck and is located freely within a base element (2), as a plug-in element for connection to a discharge device. <IMAGE>

Description

Die Erfindung betrifft einen Austragkopf bzw. eine Austragvorrichtung für fließfähige Medien, insbesondere Flüssigkeiten.The invention relates to a discharge head or a discharge device for flowable media, in particular liquids.

Erfindungsgemäß kann dieser Austragkopf eine Austragöffnung bzw. -düse und ein Verbindungsglied zur Verbindung mit einem Gegenstück, z.B. einem Ventilstößel, einem Pumpkolben oder dgl. der Austragvorrichtung bilden, wobei er bevorzugt mit einem eingesetzten, annähernd bis in den Bereich der Austragdüse reichenden Innenkörper versehen ist. Dadurch können ein einfacher Aufbau und eine hohe Festigkeit erzielt werden.According to the invention, this discharge head can have a discharge opening or nozzle and a connecting member for connection to a counterpart, e.g. form a valve tappet, a pump piston or the like. of the discharge device, wherein it is preferably provided with an inserted inner body which extends approximately into the region of the discharge nozzle. This enables a simple structure and high strength to be achieved.

Der Erfindung liegt des weiteren die Aufgabe zugrunde, Nachteile bekannter Lösungen zu vermeiden und insbesondere einen Austragkopf zu schaffen, bei welchem die auftretenden Betätigungskräfte sicher und direkt übertragen werden können.The invention is further based on the object of avoiding disadvantages of known solutions and, in particular, of creating a discharge head in which the operating forces which occur can be transmitted safely and directly.

Zur Lösung dieser Aufgabe kann der Innenkörper wenigstens teilweise eine unmittelbare Verbindung zum Gegenstück herstellen, das er berühren bzw. an dem er sich ggf. so abstützen kann, daß im wesentlichen der gesamte Betätigungsdruck über den Innenkörper auf das Gegenstück übertragen wird und Toträume reduziert werden können.To solve this problem, the inner body can at least partially establish a direct connection to the counterpart, which it touches or on which it can be supported, so that essentially the entire actuating pressure is transmitted to the counterpart via the inner body and dead spaces can be reduced .

Besonders vorteilhaft ist es, wenn das Verbindungsglied im wesentlichen durch einen vom Grundkörper gesonderten und fest mit dem Innenkörper verbundenen Bauteil gebildet ist sowie im wesentlichen frei derart im Grundkörper liegt, daß es von diesem nicht unmittelbar eng, sondern allenfalls im Radialabstand ummantelt ist. Gegen den Betätigungsdruck kann sich das Verbindungsglied bzw. der Innenkörper jedoch mit mindestens einer Stirn- bzw. Schulterfläche unmittelbar am Grundkörper abstützen.It is particularly advantageous if the connecting element is essentially formed by a component separate from the base body and firmly connected to the inner body, and is essentially freely located in the base body in such a way that it is not immediately closely encased by it, but at most at a radial distance. Against the actuation pressure, the connecting member or the inner body can be supported directly on the base body with at least one end face or shoulder surface.

Außer dem Verbindungsglied kann der Innenkörper mit dem anderen Ende auch einen Funktionsteil der Austragdüse bilden, nämlich insbesondere einen inneren Düsenkern, der von einem kappenförmigen und die Düsenöffnung aufweisenden Düsenkörper übergriffen ist. Dieser Düsenkörper ist zweckmäßig einteilig mit dem Grundkörper ausgebildet.In addition to the connecting member, the other end of the inner body can also form a functional part of the discharge nozzle, namely in particular an inner nozzle core which is overlapped by a cap-shaped nozzle body and having the nozzle opening. This nozzle body is expediently formed in one piece with the base body.

Die erfindungsgemäße Ausbildung eignet sich insbesondere für solche Austragvorrichtungen, bei welchen der Pumpkolben zur Bildung eines Auslaßventiles eine axial stauchbare Kolbenmanschette aufweist, die einen, einen Ventilsitz bildenden Kolbenkern umgibt und mit ihrem vom Kolben abgekehrten Ende gegenüber diesem Kolbenkern axial abgestützt ist. Es ist aber auch denkbar, an dem Verbindungsglied einen einteiligen Pumpkolben mit einem Schaftansatz anzuordnen oder den Pumpkolben einteilig mit dem Verbindungsglied auszubilden bzw. kein Ventil vorzusehen. Der an das Verbindungsglied anschließende Abschnitt des Innenkörpers kann auf einen Teil oder seiner ganzen Länge einen in ihm liegenden und/oder einen an seinem Außenumfang liegenden Auslaßkanal als Verbindung zwischen der Pumpkammer bzw. dem Auslaßventil und der Austragdüse begrenzen. Der Auslaßkanal durchsetzt auch das Verbindungsglied bzw. den Pumpkolben.The design according to the invention is particularly suitable for such discharge devices in which the pump piston has an axially compressible piston sleeve to form an outlet valve, which surrounds a piston core forming a valve seat and is axially supported with its end remote from the piston relative to this piston core. However, it is also conceivable to arrange a one-piece pump piston with a shaft attachment on the connecting member or to form the pump piston in one piece with the connecting member or to provide no valve. The one at that Connecting portion of the inner body can limit, for part or all of its length, an outlet channel located in it and / or an outlet channel located on its outer circumference as a connection between the pumping chamber or the outlet valve and the discharge nozzle. The outlet channel also passes through the connecting member or the pump piston.

Damit der Innenkörper leicht eingesetzt werden kann, weist er Längsabschnitte unterschiedlicher Außenweite auf, die zweckmäßig in Richtung zur Austragdüse abgestuft abnehmen. Durch die beschriebene Ausbildung kann auch ein Totvolumen zwischen dem Gegenglied der Austragvorrichtung und dem anschließenden Abschnitt des Auslaßkanales vermieden werden, wobei die unmittelbar aneinanderschließenden Kanalabschnitte des Gegengliedes und des Innenkörpers zweckmäßig etwa gleich große Durchflußquerschnitte haben.So that the inner body can be easily inserted, it has longitudinal sections of different outer widths, which expediently decrease in the direction of the discharge nozzle. A dead volume between the counterpart of the discharge device and the adjoining section of the outlet channel can also be avoided by the described configuration, the directly adjoining channel sections of the counterpart and the inner body expediently having approximately equal flow cross sections.

Vorteilhaft ist der Innenkörper in den Grundkörper mit einer Radialpressen aufgenommen, deren Spannkraft größer als der Radialdruck eines maximalen Betriebsdruckes im Austragkanal ist. Liegt der Austragkanal auf einem ersten Teil seiner Länge vollständig innerhalb des Innenkörpers und nur auf einem anschließenden, mechanisch steiferen Längsabschnitt am Außenumfang, so kann diese Ausbildung verhältnismäßig einfach erzielt werden. Durch diese Pressung wird vermieden, daß der Austragkanal, obwohl von zwei gesonderten Teilen begrenzt, unter dem Betriebsdruck elastisch aufgeweitet bzw. undicht werden kann.The inner body is advantageously accommodated in the base body with a radial press, the clamping force of which is greater than the radial pressure of a maximum operating pressure in the discharge channel. If the discharge channel lies completely within the inner body over a first part of its length and only on a subsequent, mechanically stiffer longitudinal section on the outer circumference, this configuration can be achieved relatively easily. This pressure prevents the discharge channel, although limited by two separate parts, from being elastically expanded or leaking under the operating pressure.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei einer Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird. Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher erläutert. In den Zeichnungen zeigen:

Fig. 1
einen Austragkopf im Axialschnitt und teilweise explodierter Darstellung und
Fig. 2
einen Ausschnitt des Austragkopfes gemäß Fig. 1 in vergrößerter und zusammengesetzter Darstellung.
These and further features of preferred developments of the invention are evident not only from the claims but also from the description and the drawings, the individual features in each case individually or in the form of sub-combinations in one embodiment of the Invention and be realized in other areas and can represent advantageous and protectable versions for which protection is claimed here. An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show:
Fig. 1
a discharge head in axial section and partially exploded and
Fig. 2
a section of the discharge head according to FIG. 1 in an enlarged and assembled representation.

Der im wesentlichen nur aus zwei Bauteilen zusammengesetzte Austragkopf 1 weist einen Grundkörper 2 auf, der an einem Ende eine Kappe 3 und mit deren Stirnwand eine Handhabe 4 bildet, über deren andere Stirnfläche ein Stutzen 5 vorsteht. Dieser ist im wesentlichen durch eine unmittelbar an die Handhabe 4 anschließende Außenhülse 6 und eine im wesentlichen berührungsfrei in dieser liegende Innenhülse 7 gebildet, die mit ihrem von der Kappe 3 entfernten Ende einteilig in die Außenhülse 6 übergeht. In diesem Übergangsbereich bildet der Stutzen 5 eine einteilige Düsenkappe 8 mit in der Stirnwand liegender Düsenbohrung 9, der unmittelbar eine Dralleinrichtung 11 an der Innenseite der Stirnwand zugeordnet ist. Sämtliche Bauteile liegen im wesentlichen in einer Mittelachse 10.The discharge head 1, which is composed essentially of only two components, has a base body 2 which forms a cap 3 at one end and with its end wall a handle 4, over the other end surface of which a nozzle 5 projects. This is essentially formed by an outer sleeve 6 directly adjoining the handle 4 and an inner sleeve 7 lying essentially without contact therein, which with its end remote from the cap 3 merges in one piece into the outer sleeve 6. In this transition area, the connecting piece 5 forms a one-piece nozzle cap 8 with a nozzle bore 9 lying in the end wall, to which a swirl device 11 is directly assigned on the inside of the end wall. All components lie essentially in a central axis 10.

In die Innenhülse 7 des Grundkörpers 2 ist ein im wesentlichen stab- bzw. schaftförmiger Innenkörper 12 lediglich durch Einschieben seines Schaftes 13 eingesetzt, der im wesentlichen glatte Außenflächen aufweist. Der Schaft 13 bildet einen an ein Verbindungsglied 16 anschließenden, zylindrischen Schaftabschnitt 14, der über eine kegelstumpfförmige und gegenüber der Innenhülse 7 berührungsfreie Schulter in einen zylindrischen Schaftabschnitt 15 kleineren Durchmessers übergeht, welcher mit seiner Endfläche bis an die Innenfläche der Stirnwand der Düsenkappe 8 reicht und mit Profilierungen zur Bildung der Dralleinrichtung 11 vorsehen sein kann. Das Verbindungsglied 16 liegt vollständig frei und unmittelbar anschließend am freien Ende der Innenhülse 7, über welche es mit ganzer Länge und gegenüber der Außenhülse 6 berührungsfrei bis in die Kappe 3 vorsteht, gegenüber deren Kappenende es jedoch zurückversetzt ist.An essentially rod-shaped or shaft-shaped inner body 12 is inserted into the inner sleeve 7 of the base body 2 only by inserting its shaft 13, which has essentially smooth outer surfaces. The shaft 13 forms an adjoining a connecting member 16, cylindrical shaft section 14, which merges via a frustoconical shoulder and contact-free with respect to the inner sleeve 7 into a cylindrical shaft section 15 of smaller diameter, which extends with its end face to the inner surface of the end wall of the nozzle cap 8 and can be provided with profiles to form the swirl device 11. The connecting member 16 is completely free and immediately afterwards at the free end of the inner sleeve 7, by means of which it protrudes over the entire length and with respect to the outer sleeve 6 without contact into the cap 3, but is set back relative to the end of the cap.

Das Verbindungsglied 16 dient als einziger Bauteil zur Verbindung des Austragkopfes 1 mit einer Austragvorrichtung, die z.B. eine in einen Behälterhals abgedichtet eingesetzte Pumpe zum Ansaugen von Medium aus den Behälter und zum Herausdrücken dieses Mediums durch die Düse 9 bei jedem Pumphub aufweist. Das Gegenstück 17 weist einen an das Verbindungsglied 16 angepaßten und dessen Innenlänge entsprechenden Schaftteil 18 auf, dessen Außenweite derjenigen des Schaftes 13 etwa entspricht. Das Gegenstück trägt an seinem vom Schaftteil 18 abgekehrten Ende einen Pumpkolben 19, der im wesentlichen durch eine Kolbenmanschette 20 mit stauchbarem Hals und erweiterter Kolbenlippe sowie einem Kolbenkern 21 gebildet ist, welcher die Kolbenmanschette 20 durchsetzt.The connecting member 16 serves as the only component for connecting the discharge head 1 to a discharge device which e.g. has a pump inserted into a container neck in a sealed manner for sucking medium from the container and for pushing this medium out through the nozzle 9 at each pump stroke. The counterpart 17 has a shaft part 18 adapted to the connecting member 16 and corresponding to its inner length, the outer width of which approximately corresponds to that of the shaft 13. The counterpart carries at its end remote from the shaft part 18 a pump piston 19 which is essentially formed by a piston sleeve 20 with a compressible neck and an enlarged piston lip and a piston core 21 which passes through the piston sleeve 20.

Der Kolbenkern weist einen gegen das Verbindungsglied 16 gerichteten Kernschaft 22 auf, der im wesentlichen gleiche Außenweite wie der Schaftteil 18 hat. Der Kolbenkern 21 könnte einteilig mit dem Schaftteil 18 ausgebildet sein bzw. diesen bilden und daher unmittelbar in das Verbindungsglied 16 eingesetzt werden, wobei dann der Manschettenhals axial am Ende des Verbindungsgliedes 16 abgestützt wäre. Hier ist jedoch der Schaftteil 18 durch ein Zwischenstück 23 gebildet, in dessen erweitertem, in der Außenweite dem Verbindungsglied 16 entsprechenden Muffenteil der Kernschaft 22 durch Einstecken so eingesetzt ist, daß der Manschettenhals am Ende dieses Muffenteiles abgestützt ist. Der Innenumfang der Kolbenmanschette 20 bildet mit dem Außenumfang des Kolbenkernes 21 ein Auslaßventil 24, das unter einen bestimmten Druck in dem Pumpkammer der Pumpe 25 bzw. durch Axialanschlag der Kolbenlippe unter Stauchung des Manschettenhalses in einen Kanalabschnitt 27 öffnet, der zwischen dem Außenumfang des Kernschaftes 22 und dem Innenumfang der Kolbenmanschette 20 bzw. des Zwischenstückes 23 liegt. Der Kanalabschnitt 27 schließt an einen bohrungsartig innerhalb des Schaftteiles 18 liegenden Kanalabschnitt 28 an.The piston core has a core shaft 22 directed against the connecting member 16, which has essentially the same outside width as the shaft part 18. The piston core 21 could be formed in one piece with the shaft part 18 or form it and therefore be inserted directly into the connecting member 16, in which case the cuff neck would be axially supported at the end of the connecting member 16. Here, however, the shaft part 18 is formed by an intermediate piece 23, in the extended, in the outer width corresponding to the connecting member 16 socket part of the core shaft 22 is inserted by insertion so that the cuff neck is supported at the end of this socket part. The inner circumference of the piston sleeve 20 forms with the outer circumference of the piston core 21 an outlet valve 24, which opens under a certain pressure in the pumping chamber of the pump 25 or by axially abutting the piston lip and compressing the collar of the neck into a channel section 27 which extends between the outer circumference of the core shaft 22 and the inner circumference of the piston sleeve 20 or the intermediate piece 23. The channel section 27 adjoins a channel section 28 lying in the manner of a bore within the shaft part 18.

Die Kanalabschnitte 27, 28 gehören zu einem Auslaßkanal 29, der vom Auslaßventil 24 bis zur Dralleinrichtung 11 bzw. Düse 9 reicht. Anschließend an den Kanalabschnitt 28 bildet der Schaftabschnitt 14 einen vollständig innerhalb seines Außenumfanges liegenden, vom Innern des Verbindungsgliedes 16 ausgehenden Kanalabschnitt 30, der benachbart zum Übergangsabschnitt zwischen den Schaftabschnitten 14, 15 radial nach außen in einen Kanalabschnitt 31 mündet, welcher zwischen dem Außenumfang des Schaftabschnittes 15 und dem Innenumfang der Innenhülse 7 liegt. Der z.B. durch eine Längsnut im Schaftabschnitt 15 gebildete Kanalabschnitt 31, der wesentlich kleinere Durchlaßquerschnitte als der Kanalabschnitt 30 aufweist, reicht bis zur Dralleinrichtung 11. Die Schaftabschnitte 14, 15 greifen in an sie angepaßte Bohrungsabschnitte einer entsprechend abgestuften Bohrung der Innenhülse 7 ein.The channel sections 27, 28 belong to an outlet channel 29 which extends from the outlet valve 24 to the swirl device 11 or nozzle 9. Subsequent to the channel section 28, the shaft section 14 forms a channel section 30 which lies completely within its outer circumference and extends from the inside of the connecting member 16 and which, adjacent to the transition section between the shaft sections 14, 15, opens radially outward into a channel section 31 which is located between the outer circumference of the shaft section 15 and the inner circumference of the inner sleeve 7. The channel section 31 formed, for example, by a longitudinal groove in the shaft section 15, which has substantially smaller passage cross sections than the channel section 30, extends as far as the swirl device 11. The shaft sections 14, 15 engage in bore sections of a correspondingly graduated bore of the inner sleeve 7 which are adapted to them.

Das im wesentlichen napfförmige Verbindungsglied 16 weist einen Mantel bzw. eine Manschette 32 auf, die etwa gleiche Außenweite wie die Innenhülse 7 hat und annähernd lückenlos an diese innerhalb der Außenhülse 6 anschließt. Das freie Ende der Innenhülse 7 ist gegenüber dem zugehörigen Ende der Außenhülse 6 bzw. der Stirnwand der Kappe 3 entsprechend zurückversetzt. Die Manschette 32 begrenzt eine im wesentlichen zylindrische Stecköffnung 33, von deren ebenen Boden der Kanalabschnitt 30 ausgeht und an deren Boden der Schaftteil 18 in eingestecktem Zustand anliegt, so daß der Kanalabschnitt 28 unmittelbar an den Kanalabschnitt 30 anschließt. Die Stecköffnung 33 weist ein spitzwinklig konisch erweitertes Einführende 35 für den am freien Ende entsprechend verjüngten Schaftteil 18 auf. Zwischen den Enden des zylindrischen Abschnittes und geringfügig näher beim Einführende 35 als beim Boden 34 weist die Stecköffnung 33 mindestens eine geringfügig nach innen vorstehende, einteilige Ringwulst oder dgl. als Klemmring und Abdichtung für den Schaftteil 18 auf, so daß dieser zwar einfach einzuführen, dann aber sicher gehalten ist.The essentially cup-shaped connecting member 16 has a jacket or a sleeve 32 which has approximately the same outer width as the inner sleeve 7 and connects to the latter within the outer sleeve 6 approximately without gaps. The free end of the inner sleeve 7 is set back correspondingly with respect to the associated end of the outer sleeve 6 or the end wall of the cap 3. The cuff 32 delimits an essentially cylindrical plug-in opening 33, from the flat bottom of which the channel section 30 extends and on the bottom of which the shaft part 18 lies in the inserted state, so that the channel section 28 directly adjoins the channel section 30. The insertion opening 33 has an introducer 35 which is conically widened at an acute angle for the shaft part 18 which is correspondingly tapered at the free end. Between the ends of the cylindrical portion and slightly closer to the introducer 35 than the bottom 34, the insertion opening 33 has at least one slightly inwardly projecting, one-piece annular bead or the like. As a clamping ring and seal for the shaft part 18, so that it is easy to insert, then but is kept safe.

Die Bodenwand des Verbindungsgliedes 16 bildet eine ringförmige Schulter 37 zur Abstützung an der Endfläche der Innenhülse 7. In entsprechender Weise kann der Muffenteil des Zwischenstückes 23 eine Ringschulter zur Abstützung an der Endfläche des Verbindungsgliedes 16 aufweisen. Gemäß Fig. 2 bilden dieser Muffenteil, die Manschette 32 und die Innenhülse 7 eine gemeinsame, kontinuierlich und im wesentlichen lückenlos durchgehende Außen-Umfangsfläche. Beim Pumphub kann dadurch das Verbindungsglied 16 in die Pumpe 25 bzw. deren zugehörigen Zylinderdeckel einfahren, bis die Kappenstirnwand mit ihrer Innenfläche anschlägt. Das Verbindungsglied 16 ist wesentlich kürzer als der Schaft 13 und mehrfach länger als seine Außenweite. Der Schaftabschnitt 15 ist länger als der Schaftabschnitt 14. Die Stecköffnung 33 liegt vollständig außerhalb der Innenhülse 7.The bottom wall of the connecting member 16 forms an annular shoulder 37 for support on the end face of the inner sleeve 7. In a corresponding manner, the sleeve part of the intermediate piece 23 can have an annular shoulder for support on the end face of the connecting member 16. According to FIG. 2, this sleeve part, the collar 32 and the inner sleeve 7 form a common, continuously and essentially continuously continuous outer peripheral surface. During the pump stroke, the connecting member 16 can thus move into the pump 25 or its associated cylinder cover until the cap end wall strikes with its inner surface. The connecting member 16 is significantly shorter than the shaft 13 and several times longer than its outer width. The shaft section 15 is longer than the shaft section 14. The plug opening 33 lies completely outside the inner sleeve 7.

Claims (12)

Austragkopf für Medien mit einem eine Austragöffnung (9) aufweisenden Grundkörper (2), der mit einem Verbindungsglied (16) zur Verbindung mit einem Gegenstück (17) einer Austragvorrichtung vorsehen ist, dadurch gekennzeichnet, daß der Grundkörper (2) mit einem eingesetzten, annähernd bis in den Bereich der Austragöffnung (9) reichenden Innenkörper (12) versehen ist, der insbesondere zum unmittelbar berührenden Übergang in das Gegenstück (17) ausgebildet ist.Discharge head for media with a base body (2) having a discharge opening (9), which is provided with a connecting member (16) for connection to a counterpart (17) of a discharge device, characterized in that the base body (2) with an inserted, approximately is provided in the area of the discharge opening (9) inner body (12), which is designed in particular for the directly contacting transition into the counterpart (17). Austragkopf nach Anspruch 1, dadurch gekennzeichnet, daß das Verbindungsglied (16) wenigstens teilweise an dem Innenkörper (12) angeordnet und insbesondere durch einen von dem Grundkörper (2) gesonderten Bauteil gebildet ist, wobei vorzugsweise das Verbindungsglied (16) wenigstens teilweise eine mit dem Innenkörper (12) zusammengefaßte, vom Grundkörper (2) gesonderte Baugruppe bildet, insbesondere einteilig mit dem Innenkörper (12) ausgebildet und/oder durch einen Endabschnitt des im wesentlichen stabförmigen Innenkörpers (12) gebildet ist.Discharge head according to claim 1, characterized in that the connecting member (16) is at least partially arranged on the inner body (12) and in particular is formed by a component separate from the base body (2), the connecting member (16) preferably being at least partially one with the Inner body (12) combined, separate from the base body (2) forms, in particular in one piece with the Inner body (12) is formed and / or is formed by an end section of the substantially rod-shaped inner body (12). Austragkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Verbindungsglied (16) im wesentlichen auf voller Länge und/oder über den gesamten Umfang frei liegt und vorzugsweise gegenüber dem übrigen Innenkörpor (12) erweitert ist.Discharge head according to claim 1 or 2, characterized in that the connecting member (16) is exposed substantially over its entire length and / or over the entire circumference and is preferably expanded compared to the rest of the inner body (12). Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mindestens ein sich von dem Verbindungsglied (16) bis zur Austragöffnung (9) erstreckender Auslaßkanal (29) im wesentlichen auf ganzer Länge von dem Innenkörpor (12) wenigstens auf einem Teil seines Umfanges begrenzt ist und daß vorzugsweise der Innenkörper (12) mit einem vorderen Ende eine Stirnbegrenzung einer Düsenöffnung (9) bzw. eines Querkanales und/oder mit einem hinteren Ende mindestens einen Axialanschlag für das Gegenstück (17) bildet.Discharge head according to one of the preceding claims, characterized in that at least one outlet channel (29) extending from the connecting member (16) to the discharge opening (9) is delimited essentially over its entire length by the inner body (12) at least over part of its circumference and that preferably the inner body (12) forms a front end of a nozzle opening (9) or a transverse channel with a front end and / or at least one axial stop for the counterpart (17) with a rear end. Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Auslaßkanal (29) zwischen der Austragöffnung (9) und dem Verbindungsglied (16) an einem Außenumfang von einer im wesentlichen regelmäßigen, wie zylindrischen Fläche begrenzt ist und daß vorzugsweise der Auslaßkanal (29) wenigstens auf einem, insbesondere bei seinem vorderen Ende liegenden, Teil seiner Länge durch eine Vertiefung im Außenumfang des Innenkörpers (12) gebildet und/oder wenigstens auf einem, insbesondere an das Verbindungsglied (16) anschließenden Teil seiner Länge über seinen Umfang vollständig vom Innenkörper (12) begrenzt ist.Discharge head according to one of the preceding claims, characterized in that an outlet channel (29) between the discharge opening (9) and the connecting member (16) is delimited on an outer circumference by a substantially regular, such as cylindrical surface, and that preferably the outlet channel (29) at least on a part of its length, in particular at its front end, formed by a recess in the outer circumference of the inner body (12) and / or at least on one, in particular on the connecting member (16) subsequent part of its length over its circumference is completely limited by the inner body (12). Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Innenkörper (12) anschließend an das Verbindungsglied (16) mindestens zwei Längsabschnitte (14, 15) unterschiedlicher Außenweite aufweist, von denen vorzugsweise wenigstens ein vorderer, reduzierte Außenweite aufweisender Schaftabschnitt (15) in eine Öffnung des Grundkörpers (2), insbesondere in eine Stecköffnung festsitzond, eingesetzt ist, wobei vorzugsweise im Bereich des Überganges zwischen den beiden Schaftabschnitten (14, 15) des Innenkörpers (12) zwei unterschiedliche Abschnitte (30, 31) des Auslaßkanales (29) ineinander übergehen.Discharge head according to one of the preceding claims, characterized in that the inner body (12) adjoining the connecting member (16) has at least two longitudinal sections (14, 15) of different outside widths, of which preferably at least one front, reduced outside width shaft section (15) in an opening of the base body (2), in particular into a plug-in opening, is inserted, preferably in the region of the transition between the two shaft sections (14, 15) of the inner body (12) two different sections (30, 31) of the outlet channel (29) merge. Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Verbindungsglied (16) im wesentlichen die größte Weite des Innenkörpers (12), insbesondere über seine gegenüber der Hälfte der Gesamtlänge des Innenkörpers (12) kleinere Länge annähernd konstante Außenweite aufweist und vorzugsweise über eine Übergangsschulter (37) in den anschließenden Schaftabschnitt (14) des Innenkörpers (12) übergeht, wobei insbesondere ein den Innenkörper (12) aufnehmender Hals (7) des Grundkörpers (2) wenigstens im Anschluß an das Verbindungsglied (16) im wesentlichen gleiche Außenweite wie das Verbindungsglied (16) hat.Discharge head according to one of the preceding claims, characterized in that the connecting member (16) has essentially the greatest width of the inner body (12), in particular over its length, which is smaller than half the total length of the inner body (12), and has an approximately constant outer width and preferably over a Transition shoulder (37) merges into the subsequent shaft section (14) of the inner body (12), in particular a neck (7) of the base body (2) receiving the inner body (12), at least following the connecting member (16), having essentially the same outer width as the link (16) has. Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Verbindungsglied (16) eine beispielsweise annähernd über seine Länge reichende Aufnahmeöffnung, wie eine Stecköffnung (33), für das Gegenstück (17) aufweist, von deren annähernd ringförmiger Bodenfläche vorzugsweise der zugehörige Abschnitt (30) des Auslaßkanales (29) ausgeht und die insbesondere zwischen ihren Enden am Innenumfang mit einer einzigen Ringwulst (36) versehen ist.Discharge head according to one of the preceding claims, characterized in that the connecting member (16) extends, for example, approximately over its length Receiving opening, such as a plug-in opening (33), for the counterpart (17), from the approximately annular bottom surface of which the associated section (30) of the outlet channel (29) preferably extends and which, in particular, has a single annular bead (36) between its ends on the inner circumference. is provided. Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Grundkörper (2) einen den Innenkörper (12) aufnehmenden Innenhals (7) aufweist, der wenigstens auf einem Teil seiner Länge und/oder seines Umfanges im Abstand von einer insbesondere längeren Außenhülse (6) umgeben ist, wobei vorzugsweise der Innenhals (7) und die Außenhülse (6) von einem vorderen Ende (8) des Grundkörpers (2) frei ausragen und/oder einteilig miteinander ausgebildet sind.Discharge head according to one of the preceding claims, characterized in that the base body (2) has an inner neck (7) which receives the inner body (12) and which is spaced at least over part of its length and / or its circumference from a particularly longer outer sleeve (6 ) is surrounded, wherein preferably the inner neck (7) and the outer sleeve (6) protrude freely from a front end (8) of the base body (2) and / or are formed in one piece with one another. Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein von der Austragöffnung (9) entferntes Ende des Grundkörpers (2), insbesondere der Außenhülse, als Handhabe (4) und/oder als Kappe (3) ausgebildet ist und daß vorzugsweise das Verbindungsglied (16) bis in das Innere der Kappe (3) reicht.Discharge head according to one of the preceding claims, characterized in that one end of the base body (2), in particular the outer sleeve, remote from the discharge opening (9) is designed as a handle (4) and / or as a cap (3) and that the connecting member is preferably used (16) extends into the interior of the cap (3). Austragkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gegenstück (17) einen Bestandteil einer Kolbeneinheit einer Schubkolbenpumpe bildet und vorzugsweise einen eine Kolbenmanschette (20) tragenden, ein Gegenstück (22) bildenden Kolbenstößel (21) und/oder eine ein Gegenstück (17) bildende Zwischenhülse (23) aufweist, wobei das Gegenstück vorzugsweise einen in der Außenweite reduzierten Endabschnitt bildet.Discharge head according to one of the preceding claims, characterized in that the counterpart (17) forms part of a piston unit of a thrust piston pump and preferably a piston tappet (21) carrying a piston sleeve (20) and forming a counterpart (22) and / or a counterpart ( 17) educational Intermediate sleeve (23), wherein the counterpart preferably forms an end portion with reduced outer width. Austragkopf, insbesondere nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Innenkörper (12) in dem Grundkörper (2) mit einer Pressung aufgenommen ist, deren Radialspannkraft größer als der Radialdruck eines maximalen Betriebsdruckes in dem Austragkanal (29) ist.Discharge head, in particular according to one of the preceding claims, characterized in that the inner body (12) is received in the base body (2) with a pressure, the radial clamping force of which is greater than the radial pressure of a maximum operating pressure in the discharge channel (29).
EP90125309A 1990-02-22 1990-12-21 Discharge head for fluids Expired - Lifetime EP0443192B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005529 1990-02-22
DE4005529A DE4005529A1 (en) 1990-02-22 1990-02-22 Liq. applicator head with body outlet

Publications (3)

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EP0443192A2 true EP0443192A2 (en) 1991-08-28
EP0443192A3 EP0443192A3 (en) 1991-12-04
EP0443192B1 EP0443192B1 (en) 1995-01-25

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ID=6400694

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EP90125309A Expired - Lifetime EP0443192B1 (en) 1990-02-22 1990-12-21 Discharge head for fluids

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US (1) US5203840A (en)
EP (1) EP0443192B1 (en)
JP (1) JP2789265B2 (en)
AT (1) ATE117596T1 (en)
DE (2) DE4005529A1 (en)

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Also Published As

Publication number Publication date
US5203840A (en) 1993-04-20
ATE117596T1 (en) 1995-02-15
DE4005529A1 (en) 1991-08-29
JPH04227871A (en) 1992-08-17
EP0443192B1 (en) 1995-01-25
EP0443192A3 (en) 1991-12-04
DE59008365D1 (en) 1995-03-09
JP2789265B2 (en) 1998-08-20

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