EP0098939A2 - Spray or dosage pump - Google Patents

Spray or dosage pump Download PDF

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Publication number
EP0098939A2
EP0098939A2 EP83104927A EP83104927A EP0098939A2 EP 0098939 A2 EP0098939 A2 EP 0098939A2 EP 83104927 A EP83104927 A EP 83104927A EP 83104927 A EP83104927 A EP 83104927A EP 0098939 A2 EP0098939 A2 EP 0098939A2
Authority
EP
European Patent Office
Prior art keywords
pump
pump housing
projection
actuating
projections
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
EP83104927A
Other languages
German (de)
French (fr)
Other versions
EP0098939B1 (en
EP0098939A3 (en
Inventor
Leo Märte
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
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 Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Priority to AT83104927T priority Critical patent/ATE31391T1/en
Publication of EP0098939A2 publication Critical patent/EP0098939A2/en
Publication of EP0098939A3 publication Critical patent/EP0098939A3/en
Application granted granted Critical
Publication of EP0098939B1 publication Critical patent/EP0098939B1/en
Expired 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
    • 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
    • B05B11/1005—Piston pumps with means for adjusting or modifying pump stroke
    • B05B11/1008—Piston pumps with means for adjusting or modifying pump stroke by adjusting or modifying the pump end-of-dispensing-stroke position
    • 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
    • B05B11/1042—Components or details
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position

Definitions

  • the invention relates to an atomizer or metering pump with a pump housing and a push-button which can be displaced in relation to it, with cooperating projections and recesses being provided on the pump housing and push-button.
  • Such a pump has become known from DE-GM 79 01 055.
  • the interacting projections and recesses serve to prevent the actuation pusher from rotating relative to the pump housing.
  • the object of the invention is to further develop an atomizer or metering pump with regard to its usability and safety in use.
  • the projections and recesses can preferably be used to interlock the pump housing and actuation interact against actuation of the pump in at least one predetermined rotational position. This can prevent the pump from being used during transport or unauthorized use, for example by children. This is particularly important if it is a pump for pharmaceutical products.
  • the term “metering pump” encompasses pumps for dispensing all flowable substances, such as liquid, gel-like or pasty media.
  • the projections and recesses can be at least partially undercut and secure the actuating pushbutton in a predetermined rotational position against being pulled off the pump. In this position, which preferably corresponds to the securing position against actuation, the actuating head is prevented from being pulled off the pump piston rod, which could not only lead to a loss of the actuating button, but also to contamination of the outlet channel.
  • the projections or recesses which should also be understood to include shoulders, steps, stop surfaces, etc., can be provided either on the actuation button or on the pump housing.
  • a projection can interact with a curved or preferably stepped surface. Due to the step-like steps, there is no need to define the quantity setting during operation, which could otherwise change itself due to the effect of the curve. The adjustment could for example as by turning the actuation button relative to the pump housing.
  • the rotatable part can, however, be a ring mounted on the actuating lever or preferably on the pump housing, wherein advantageously provided in the ring rotatably mounted on the pump housing to a limited extent and in the region of the pump housing adjacent to the actuating lever which are to be aligned with one another in which internal protrusions of the actuating pushbutton can run in this area.
  • a separate ring which is rotatably mounted on the pump housing is also advantageous for securing against actuation and / or pulling off the actuation pushbutton, because then the predetermined safety rotary position is independent of the e.g. by a random position of the pump on the container of the actuating pushers e.g. can be turned into a specific position for packaging. This is important, for example, if both the container and the actuation button have a non-rotationally symmetrical shape, for example a flat or square container is provided with an actuation button with a lateral projection.
  • an embodiment is particularly preferred in which at least one projection interacts with a recess extending over a part of the circumference, the two ends of which limit the movement of the projection in the recess, wherein in the region of one end of the recess one allows the axial movement of the projection axial groove is provided.
  • a metering or dispensing pump 11 is shown, which is screwed onto a container 12.
  • the pump 11 has a pump housing 13 on which a pump cylinder (not shown), which partially protrudes into the container, is provided with a single-acting piston pump.
  • a piston rod 15 of the pump protrudes upward out of the pump housing and an actuating pusher 14 is pressed onto it, which contains an outlet channel 27 which is connected to the outlet channel of the hollow piston rod and which is formed in a muzzle tube laterally above the rest of the other as an inverted cup-shaped part Push button protrudes.
  • the bottom of the pot is formed by the actuating pressure surface 16, which the user presses in the direction of arrow 28 to actuate the pump.
  • the cylindrical surface 17 of the actuation button has four projections in the form of axially extending ribs on its inner surface in the present example. While the jacket 17 is dimensioned in its inner diameter such that it extends over an upper cylindrical region 21 of the pump housing, the projections 19 are dimensioned such that they normally rest on a step 29 in the region 21. However, in the same arrangement as the ribs 19, four recesses 20 are provided in the region 21 in the form of longitudinal grooves which can receive the projections.
  • a ring 22 of essentially L-shaped shape is axially immovable, but is rotatably mounted in the circumferential direction.
  • the outer surface of its L-leg running in the axial direction connects seamlessly to the area 21 and has also, recesses 23 designed as axial grooves, which can be aligned with the recesses 20 by rotating the ring 22 (see FIG. 1).
  • markings 25 are provided which correspond to two positions of the ring. In these positions, the ring can find the limit of its rotational position by any stops, not shown. It is also possible to assign resilient detents to the two positions.
  • the pump can be completely blocked by turning the actuation button 14 relative to the pump housing 13 in such a way that that the projections 19 rest on the step 29 when they are not aligned with the recesses 20. This is a securing position against unintentional activation of the pump.
  • FIG. 4 shows an embodiment which allows adjustment in several stages (0, 1/4, 1/2, 3/4, 1) (markings 25a).
  • a ring 22a is provided, which has on its outer circumference a recess 23a in the form of a depression in the cylindrical wall of the ring, the lower surface 26a of which rises in steps in five steps.
  • the pump is shown in the position "0", in which a projection 19a rests on the inner surface of the cylindrical shell of the actuating button 14a at the highest level.
  • the recess 23a is overlapped by a web 31, so that the projection 19a in the 0 position secures the actuation button against any axial movement, both in the working direction and against the actuation button being pulled off.
  • the actuation button can be depressed until the projection 19a rests on the corresponding step 26a.
  • FIGS. 5 and 6 show an embodiment in which the actuating button 14b is in the area of a lower one Edge 32 has a system of recesses and webs, which are formed with corresponding projections 19b on the pump housing 13 or a ring mounted thereon.
  • the system of recesses is arranged on the inner circumference of the jacket 17b of the actuation button 14b and consists of four identical system units. Each contains an axially extending slot 33, which is recessed in the inner wall of the jacket 17b and which is adjoined by a slightly less recessed peripheral recess 34 in the region of the lower edge 32. This is open towards the edge 32 and is only covered in its end remote from the slot 33 by a web 35 so that a channel-like groove is formed in this short area. A recess 36 of the recess is provided in this area.
  • the total of four projections 19b are dimensioned in their width and depth so that they can run with slight contact pressure in the recess 34, while they can run in the slot 33, which is even more recessed than the recess, without any obstacle.
  • the pump can be operated in the latter position. If, on the other hand, the actuation button 14b is rotated in the rest position so that the projections 19b run in the recess 34, the pump is locked against actuation. When turning further to the end stop 37, the projections 19b run into the channel-like section of the recess 34, so that the actuating button 14b is also secured against removal by the web 35.
  • the depressions 36 together with the projections 19b form catches which resiliently fix the actuating button in this position.
  • the direction of rotation is selected so that when screwing on with a screw thread 40th (s.Fig.7) provided pump on a container of the actuating button automatically takes this safety rotary position, which is shown in Fig. 6. This means that the pump is secured for transport as soon as it is placed on the container.
  • FIG. 7 shows an embodiment which works with an actuation button 14b according to FIGS. 5 and 6.
  • the pump housing 13c contains the pump cylinder 38 as a separately inserted part.
  • a pump housing is generally to be understood as all parts of the pump that are fixed relative to the container or against which the actuating lever moves axially.
  • a ring 22c is inserted in an annular edge recess 39 and secured by snapping an annular bead 40 into a corresponding groove against axial movement and its braking movement being controlled in a controlled manner.
  • the four projections 19b which cooperate with the recesses 33, 34, are formed on the outer circumference of the ring, which is flush with the outer circumference of the pump housing 13c.
  • the arrangement of this ring 22c which can be rotated against a certain resistance, makes it possible to turn the actuation button 14b into any position and, from this basic position, to perform the function described with reference to FIGS. 5 and 6 (pump actuation / blocked actuation / securing position).

Abstract

The cylindrical pump housing (13) which may be screwed on top of a bottle carries a stack of discs (22) above which projects the piston rod (15) of the pump. A cylindrical skirt (17) forming a cap (11), extends downwards from a flat top with a central opening connected by a side outlet to a dispensing nozzle projecting radially outwards. When the cap is pressed, the contents of the bottle are forced upwards through the central opening and through the nozzle due to the pumping action. The cap can be rotated about its vertical axis to control the discharge. In one position, the bottom of the skirt is blocked by the top disc, so that it cannot be pushed down. By rotating the cap until a vertical rib (19) inside is aligned with grooves (20,23) on the vertical outside faces of the discs, the cap can be pushed down.

Description

Die Erfindung betrifft eine Zerstäuber- oder Dosierpumpe mit einem Pumpengehäuse und einem demgegenüber verschiebbaren Betätigungsdrücker, wobei an Pumpengehäuse und Betätigungsdrücker zusammenwirkende Vorsprünge und Ausnehmungen vorgesehen sind.The invention relates to an atomizer or metering pump with a pump housing and a push-button which can be displaced in relation to it, with cooperating projections and recesses being provided on the pump housing and push-button.

Eine derartige Pumpe ist aus dem DE-GM 79 01 055 bekannt geworden. Dabei dienen die zusammenwirkenden Vorsprünge und Ausnehmungen dazu, eine Verdrehung des Betätigungsdrückers gegenüber dem Pumpengehäuse zu verhindern.Such a pump has become known from DE-GM 79 01 055. The interacting projections and recesses serve to prevent the actuation pusher from rotating relative to the pump housing.

Aufgabe der Erfindung ist es, eine Zerstäuber- oder Dosierpumpe in Bezug auf ihre Brauchbarkeit und Sicherheit in der Benutzung weiterzuentwickeln.The object of the invention is to further develop an atomizer or metering pump with regard to its usability and safety in use.

Diese Aufgabe wird gemäß der Erfindung durch den Anspruch 1 gelöst.This object is achieved according to the invention by claim 1.

Vorzugsweise können die Vorsprünge und Ausnehmungen zur gegenseitigen Verriegelung von Pumpengehäuse und Betätigungsdrücker gegen Betätigung der Pumpe in zumindest einer vorgegebenen Drehstellung zusammenwirken. Es kann damit verhindert werden, daß die Pumpe bei ihrem Transport oder unbefugt, beispielsweise durch Kinder, benutzt wird. Dies ist besonders wichtig, wenn es sich um eine Pumpe für pharmazeutische Produkte handelt. Mit dem Begriff "Dosierpumpe" sind Pumpen zur Ausgabe aller fließfähigen Stoffe, wie flüssigen, gelartigen oder pastösen Medien, umfaßt.The projections and recesses can preferably be used to interlock the pump housing and actuation interact against actuation of the pump in at least one predetermined rotational position. This can prevent the pump from being used during transport or unauthorized use, for example by children. This is particularly important if it is a pump for pharmaceutical products. The term “metering pump” encompasses pumps for dispensing all flowable substances, such as liquid, gel-like or pasty media.

Die Vorsprünge und Ausnehmungen können zumindest teilweise hinterschnitten ausgebildet sein und den Betätigungsdrücker in einer vorgegebenen Drehstellung gegen Abziehen von der Pumpe sichern. Damit wird in dieser Stellung, die vorzugsweise mit der Sicherungsstellung gegen Betätigung übereinstimmt, verhindert, daß der Betätigungskopf von der Pumpenkolbenstange abgezogen wird, was nicht nur zu einem Verlust des Betätigungsdrückers führen könnte, sondern auch zu einer Kontaminierung des Auslaßkanals. Bei allen beschriebenen Ausführungsformen können die Vorsprünge oder Ausnehmungen, worunter auch Schultern, Stufen, Anschlagflächen etc., zu verstehen sind, entweder am Betätigungsdrücker oder am Pumpengehäuse vorgesehen sein.The projections and recesses can be at least partially undercut and secure the actuating pushbutton in a predetermined rotational position against being pulled off the pump. In this position, which preferably corresponds to the securing position against actuation, the actuating head is prevented from being pulled off the pump piston rod, which could not only lead to a loss of the actuating button, but also to contamination of the outlet channel. In all of the described embodiments, the projections or recesses, which should also be understood to include shoulders, steps, stop surfaces, etc., can be provided either on the actuation button or on the pump housing.

Es ist besonders vorteilhaft, wenn die Vorsprünge und Ausnehmungen zur Freigabe eines je nach Drehstellung unterschiedlichen Pumpenweges miteinander zusammenwirken. Dadurch ist eine Einstellung der Dosier- oder Zerstäubungsmenge möglich. Dazu kann ein Vorsprung mit einer kurven-oder vorzugsweise stufenförmig abgesetzten Fläche zusammenwirken. Durch stufenförmige Absetzungen entfällt die Notwendigkeit der Festlegung der Mengeneinstellung während der Betätigung, die sonst durch die Wirkung der Kurve sich selbst verstellen könnte. Die Verstellung könnte beispielsweise durch Verdrehung des Betätigungsdrückers gegenüber dem Pumpengehäuse erfolgen. Das drehbare Teil kann jedoch ein auf dem Betätigungsdrücker oder vorzugsweise dem Pumpengehäuse gelagerter Ring sein, wobei vorteilhaft in dem am Pumpengehäuse begrenzt drehbar gelagerten Ring und in dem in Richtung auf den Betätigungsdrücker benachbarten Bereich des Pumpengehäuses miteinander zum Fluchten zu bringende axiale Nuten vorgesehen sind, in denen innere Vorsprünge des in diesem Bereich übergreifenden Betätigungsdrückers laufen können.It is particularly advantageous if the projections and recesses cooperate with one another to release a pump path that differs depending on the rotational position. This makes it possible to set the metering or atomizing amount. For this purpose, a projection can interact with a curved or preferably stepped surface. Due to the step-like steps, there is no need to define the quantity setting during operation, which could otherwise change itself due to the effect of the curve. The adjustment could for example as by turning the actuation button relative to the pump housing. The rotatable part can, however, be a ring mounted on the actuating lever or preferably on the pump housing, wherein advantageously provided in the ring rotatably mounted on the pump housing to a limited extent and in the region of the pump housing adjacent to the actuating lever which are to be aligned with one another in which internal protrusions of the actuating pushbutton can run in this area.

Ein gesonderter, auf dem Pumpengehäuse drehbar gelagerter Ring ist auch bei einer Sicherung gegen Betätigung und/oder Abziehen des Betätigungsdrückers vorteilhaft, weil dann die vorgegebene Sicherheits-Drehstellung unabhängig von der z.B. durch ein Gewinde zufällig erfolgenden Stellung der Pumpe auf den Behälter der Betätigungsdrücker z.B. zur Verpackung in eine bestimmte Lage gedreht werden kann. Dies ist beispielsweise dann wichtig, wenn sowohl der Behälter als auch der Betätigungsdrücker eine nicht rotationssymmetrische Form haben, also beispielsweise ein flacher oder eckiger Behälter mit einem Betätigungsdrücker mit seitlichem Vorsprung versehen wird.A separate ring which is rotatably mounted on the pump housing is also advantageous for securing against actuation and / or pulling off the actuation pushbutton, because then the predetermined safety rotary position is independent of the e.g. by a random position of the pump on the container of the actuating pushers e.g. can be turned into a specific position for packaging. This is important, for example, if both the container and the actuation button have a non-rotationally symmetrical shape, for example a flat or square container is provided with an actuation button with a lateral projection.

Besonders bevorzugt ist ferner eine Ausführungsform, bei der wenigstens ein Vorsprung mit einer über einen Teil des Kreisumfanges sich erstreckenden Ausnehmung zusammenwirkt, deren beide Enden die Bewegung des Vorsprunges in der Ausnehmung begrenzen, wobei im Bereich eines Endes der Ausnehmung eine die axiale Bewegung des Vorsprunges ermöglichende axiale Nut vorgesehen ist.Furthermore, an embodiment is particularly preferred in which at least one projection interacts with a recess extending over a part of the circumference, the two ends of which limit the movement of the projection in the recess, wherein in the region of one end of the recess one allows the axial movement of the projection axial groove is provided.

Weitere Vorteile und Merkmale der Erfindung gehen aus den Unteransprüchen und der folgenden Beschreibung im Zusammenhang mit den Zeichnungen hervor. Die Merkmale der Unteransprüche sind einzeln oder in Kombination miteinander zweckmäßig und vorteilhaft.Further advantages and features of the invention emerge from the subclaims and the following description in conjunction with the drawings. The characteristics of the sub Claims are expedient and advantageous individually or in combination with one another.

In den Zeichnungen zeigen:

  • Fig. 1 einen vertikalen Schnitt durch einen Betätigungsdrücker und einen Teil eines auf einen Behälter aufgeschraubten Pumpengehäuses,
  • Fig. 2 eine entsprechende Darstellung der gleichen Ausführung in einer anderen Arbeitsstellung,
  • Fig. 3 einen Schnitt nach der Linie III-III in Fig. 2,
  • Fig. 4 eine teilgeschnittene Seitenansicht von Betätigungsdrücker und Pumpengehäuse einer anderen Ausführungsform,
  • Fig. 5 eine perspektivische Ansicht der Unterkante eines Betätigungsdrückers mit darin eingeformten Nuten und Vorsprüngen,
  • Fig. 6 eine von unten gesehene, teilgeschnittene Ansicht des Betätigungsdrückers nach Fig. 5 mit einem geschnittenen Teil des Pumpengehäuses und
  • Fig. 7 einen senkrechten Teilschnitt durch Betätigungsdrücker und Pumpengehäuse einer weiteren Ausführungsform.
The drawings show:
  • 1 is a vertical section through an actuating button and part of a pump housing screwed onto a container,
  • 2 shows a corresponding representation of the same embodiment in a different working position,
  • 3 shows a section along the line III-III in FIG. 2,
  • 4 is a partially sectioned side view of the actuation button and pump housing of another embodiment,
  • 5 is a perspective view of the lower edge of an actuation button with grooves and projections molded therein;
  • Fig. 6 is a partially sectioned view of the actuation button according to Fig. 5 seen from below with a cut part of the pump housing and
  • Fig. 7 is a vertical partial section through actuation pushers and pump housing of a further embodiment.

In den Figuren 1 bis 3 ist eine Dosier- oder Ausgabepumpe 11 dargestellt, die auf einen Behälter 12 aufgeschraubt ist. Die Pumpe 11 besitzt ein Pumpengehäuse 13, an dem ein nicht dargestellter, in den Behälter teilweise hineinragender Pumpenzylinder mit einer einfach wirkenden Kolbenpumpe vorgesehen ist. Eine Kolbenstange 15 der Pumpe ragt aus dem Pumpengehäuse nach oben heraus und auf sie ist ein Betätigungsdrücker 14 aufgepreßt, der einen mit dem Auslaßkanal der hohl ausgebildeten Kolbenstange in Verbindung stehenden Auslaßkanal 27 enthält, der in einem Mündungsrohr seitlich über den übrigen als umgekehrt topfförmiges Teil ausgebildeten Betätigungsdrücker hinausragt. Der Boden des Topfes wird von der Betätigungsdruckfläche 16 gebildet, auf die der Benutzer zur Betätigung der Pumpe in Richtung des Pfeiles 28 drückt.In Figures 1 to 3, a metering or dispensing pump 11 is shown, which is screwed onto a container 12. The pump 11 has a pump housing 13 on which a pump cylinder (not shown), which partially protrudes into the container, is provided with a single-acting piston pump. A piston rod 15 of the pump protrudes upward out of the pump housing and an actuating pusher 14 is pressed onto it, which contains an outlet channel 27 which is connected to the outlet channel of the hollow piston rod and which is formed in a muzzle tube laterally above the rest of the other as an inverted cup-shaped part Push button protrudes. The bottom of the pot is formed by the actuating pressure surface 16, which the user presses in the direction of arrow 28 to actuate the pump.

Der. zylindrische Mantel 17 des Betätigungsdrückers hat an seiner Innenfläche im vorliegenden Beispiel vier Vorsprünge in Form axial verlaufender Rippen. Während der Mantel 17 in seinem Innendurchmesser so bemessen ist, daß er über einen obereren zylindrischen Bereich 21 des Pumpengehäuses her- übergreift, sind die Vorsprünge 19 so bemessen, daß sie normalerweise an einer Stufe 29 in dem Bereich 21 aufliegen. Es sind jedoch in gleicher Anordnung wie die Rippen 19 vier Ausnehmungen 20 in dem Bereich 21 in Form von längs verlaufenden Nuten vorgesehen, die die Vorsprünge aufnehmen können.The. The cylindrical surface 17 of the actuation button has four projections in the form of axially extending ribs on its inner surface in the present example. While the jacket 17 is dimensioned in its inner diameter such that it extends over an upper cylindrical region 21 of the pump housing, the projections 19 are dimensioned such that they normally rest on a step 29 in the region 21. However, in the same arrangement as the ribs 19, four recesses 20 are provided in the region 21 in the form of longitudinal grooves which can receive the projections.

In einer Ringnut 24 des Pumpengehäuses ist ein Ring 22 von im wesentlichen L-förmiger Gestalt axial unverschiebbar, jedoch in Umfangsrichtung drehbar gelagert. Die Außenfläche seines in Achsrichtung verlaufenden L-Schenkels schließt an den Bereich 21 übergangslos an und besitzt ebefalls als axiale Nuten ausgebildete Ausnehmungen 23, die durch Drehung des Ringes 22 fluchtend mit den Ausnehmungen 20 ausgerichtet werden können (siehe Fig. 1). An dem nach außen vorstehenden L-Schenkel des Ringes und dem angrenzenden Bereich des Pumpengehäuses 13 sind Markierungen 25 vorgesehen, die zwei Stellungen des Ringes entsprechen. In diesen Stellungen kann der Ring durch nichtdargestellte beliebige Anschläge die Begrenzung seiner Drehstellung finden. Es ist ferner möglich, den beiden Stellungen federnde Rasten zuzuordnen.In an annular groove 24 of the pump housing, a ring 22 of essentially L-shaped shape is axially immovable, but is rotatably mounted in the circumferential direction. The outer surface of its L-leg running in the axial direction connects seamlessly to the area 21 and has Also, recesses 23 designed as axial grooves, which can be aligned with the recesses 20 by rotating the ring 22 (see FIG. 1). On the outwardly projecting L-leg of the ring and the adjacent area of the pump housing 13, markings 25 are provided which correspond to two positions of the ring. In these positions, the ring can find the limit of its rotational position by any stops, not shown. It is also possible to assign resilient detents to the two positions.

Die Wirkungsweise der Ausführung nach den Figuren 1 bis 3 ist wie folgt:

  • In der in Fig. 1 dargestellten Stellung steht die Pumpe auf vollem Hub (kenntlich durch die Markierung "1"). Dabei fluchten die beiden Ausnehmungen 23 miteinander. Wenn jetzt der Betätigungsdrücker 14 heruntergedrückt wird, läuft der Vorsprung 19 in den fluchtenden Ausnehmungen 20, 23 und kommt erst an der unteren Schulter 30 des Ringes 22 zum Anschlag. Dies entspricht dem vollen Pumpenhub.
The mode of operation of the embodiment according to FIGS. 1 to 3 is as follows:
  • In the position shown in Fig. 1, the pump is at full stroke (indicated by the mark "1"). The two recesses 23 are aligned with one another. If the actuation button 14 is now pressed down, the projection 19 runs in the aligned recesses 20, 23 and only comes to a stop on the lower shoulder 30 of the ring 22. This corresponds to the full pump stroke.

In der Stellung nach Fig. 2 ist durch Drehen des Ringes 22 der halbe HJb eingestellt. Dabei sind die Ausnehmungen 20 und 23 nicht in fluchtender Anordnung, so daß der Vorsprung 19 nun nur durch die Ausnehmung 20 laufen kann und dann an der oberen Stirnfläche 26 des Ringes 22 zu Anlage kommt. Fig. 3 zeigt ebenfalls diese Stellung mit gegeneinander versetzten Ausnehmungen 20, 23.In the position shown in FIG. 2, half H J b is set by rotating ring 22. The recesses 20 and 23 are not in alignment, so that the projection 19 can now only run through the recess 20 and then comes to rest on the upper end face 26 of the ring 22. Fig. 3 also shows this position with mutually offset recesses 20, 23rd

Es ist noch zu bemerken, daß bei dieser Ausführung die Pumpe gänzlich blockiert werden kann, indem der Betätigungsdrücker 14 gegenüber dem Pumpengehäuse 13 so verdreht wird, daß die Vorsprünge 19 auf der Stufe 29 aufliegen, wenn sie nämlich nicht mit den Ausnehmungen 20 fluchten. Dies ist eine Sicherungsstellung gegen ungewollte Betätigung der Pumpe.It should also be noted that in this embodiment the pump can be completely blocked by turning the actuation button 14 relative to the pump housing 13 in such a way that that the projections 19 rest on the step 29 when they are not aligned with the recesses 20. This is a securing position against unintentional activation of the pump.

In Fig. 4 ist eine Ausführungsform dargestellt, die eine Einstellung in mehreren Stufen ( 0, 1/4, 1/2, 3/4, 1 ) gestattet (Markierungen 25a). Dazu ist ein Ring 22a vorgesehen, der an seinem Außenumfang eine Ausnehmung 23a in Form einer Vertiefung in der zylindrischen Wand des Ringes hat, deren untere Fläche 26a treppenförmig in fünf Stufen ansteigt. In Fig. 4 ist die Pumpe in der Stellung "0" dargestellt, in der ein Vorsprung 19a an der Innenfläche des zylindrischen Mantels des Betätigungsdrückers 14a auf der höchsten Stufe aufliegt. An dieser Stufe wird die Ausnehmung 23a von einem Steg 31 übergriffen, so daß der Vorsprung 19a in der 0-Stellung den Betätigungsdrücker an jeder axialen Bewegung, sowohl in Arbeitsrichtung, als auch gegen Abziehen des Betätigungsdrückers, sichert.FIG. 4 shows an embodiment which allows adjustment in several stages (0, 1/4, 1/2, 3/4, 1) (markings 25a). For this purpose, a ring 22a is provided, which has on its outer circumference a recess 23a in the form of a depression in the cylindrical wall of the ring, the lower surface 26a of which rises in steps in five steps. In Fig. 4, the pump is shown in the position "0", in which a projection 19a rests on the inner surface of the cylindrical shell of the actuating button 14a at the highest level. At this stage, the recess 23a is overlapped by a web 31, so that the projection 19a in the 0 position secures the actuation button against any axial movement, both in the working direction and against the actuation button being pulled off.

Um ein Verkanten des Betätigungsdrückers zu verhindern, kann die gleiche Anordnung auf der gegenüberliegenden Seite nochmals vorgesehen sein.In order to prevent the actuating lever from tilting, the same arrangement can again be provided on the opposite side.

Bei einer Verstellung auf einen beliebigen gewünschten Hubwert kann der Betätigungsdrücker so weit herabgedrückt werden, bis der Vorsprung 19a auf der entsprechenden Stufe 26a aufliegt.In the case of an adjustment to any desired stroke value, the actuation button can be depressed until the projection 19a rests on the corresponding step 26a.

In den Figuren 5 und 6 ist eine Ausführung dargestellt, bei der der Betätigungsdrücker 14b im Bereich einer unteren Kante 32 ein System von Ausnehmungen und Stegen hat, das mit entsprechenden Vorsprüngen 19b an dem Pumpengehäuse 13 oder einem darauf gelagerten Ring angeformt sind.FIGS. 5 and 6 show an embodiment in which the actuating button 14b is in the area of a lower one Edge 32 has a system of recesses and webs, which are formed with corresponding projections 19b on the pump housing 13 or a ring mounted thereon.

Das System von Ausnehmungen ist am Innenumfang des Mantels 17b des Betätigungsdrückers 14b angeordnet und besteht aus vier gleichen Systemeinheiten. Jede enthält einen in der Innenwand des Mantels 17b vertieften, axial verlaufenden Schlitz 33, an den sich eine etwas geringer vertiefte Umfangsausnehmung 34 im Bereich der unteren Kante 32 anschließt. Diese ist zum Rand 32 hin offen und nur in ihrem von dem Schlitz 33 entfernten Ende von einem Steg 35 so überdeckt, daß in diesem kurzen Bereich eine kanalartige Nut entsteht. In diesem Bereich ist eine Vertiefung 36 der Ausnehmung vorgesehen.The system of recesses is arranged on the inner circumference of the jacket 17b of the actuation button 14b and consists of four identical system units. Each contains an axially extending slot 33, which is recessed in the inner wall of the jacket 17b and which is adjoined by a slightly less recessed peripheral recess 34 in the region of the lower edge 32. This is open towards the edge 32 and is only covered in its end remote from the slot 33 by a web 35 so that a channel-like groove is formed in this short area. A recess 36 of the recess is provided in this area.

Die insgesamt vier Vorsprünge 19b sind in ihrer Breite und Tiefe so bemessen, daß sie mit leichtem Kontaktdruck in der Ausnehmung 34 laufen können, während sie in dem gegenüber der Ausnehmung noch weiter vertieften Schlitz 33 ohne Hindernis laufen können. In der letzteren Stellung kann die Pumpe betätigt werden. Wird dagegen der Betätigungsdrücker 14b in der Ruhestellung so verdreht, daß die Vorsprünge 19b in der Ausnehmung 34 laufen, so ist die Pumpe gegen Betätigung gesperrt. Beim Weiterdrehen bis zum Endanschlag 37 laufen die Vorsprünge 19b in den kanalartigen Abschnitt der Ausnehmung 34 ein, so daß der Betätigungsdrücker 14b durch den Steg 35 auch gegen Abnehmen gesichert ist. Die Vertiefungen 36 bilden zusammen mit den Vorsprüngen 19b Rasten, die den Betätigungsdrücker in dieser Lage federnd festlegen. Die Drehrichtung ist so gewählt, daß beim Aufschrauben der mit einem Schraubgewinde 40 (s.Fig.7) versehene Pumpe auf einen Behälter der Betätigungsdrücker automatisch diese Sicherheits-Drehstellung, die in Fig. 6 dargestellt ist, einnimmt. Damit ist die Pumpe sofort nach ihrer Aufbringung auf den Behälter für den Transport gesichert.The total of four projections 19b are dimensioned in their width and depth so that they can run with slight contact pressure in the recess 34, while they can run in the slot 33, which is even more recessed than the recess, without any obstacle. The pump can be operated in the latter position. If, on the other hand, the actuation button 14b is rotated in the rest position so that the projections 19b run in the recess 34, the pump is locked against actuation. When turning further to the end stop 37, the projections 19b run into the channel-like section of the recess 34, so that the actuating button 14b is also secured against removal by the web 35. The depressions 36 together with the projections 19b form catches which resiliently fix the actuating button in this position. The direction of rotation is selected so that when screwing on with a screw thread 40th (s.Fig.7) provided pump on a container of the actuating button automatically takes this safety rotary position, which is shown in Fig. 6. This means that the pump is secured for transport as soon as it is placed on the container.

In Fig. 7 ist eine Ausführung dargestellt, die mit einem Betätigungsdrücker 14b nach den Figuren 5 und 6 arbeitet. Das Pumpengehäuse 13c enthält in diesem Falle als gesondert eingesetztes Teil den Pumpenzylinder 38. Unter Pumpengehäuse sind jedoch generell alle Teile der Pumpe zu verstehen, die gegenüber dem Behälter fest sind bzw. gegenüber denen sich der Betätigungsdrücker axial bewegt.FIG. 7 shows an embodiment which works with an actuation button 14b according to FIGS. 5 and 6. In this case, the pump housing 13c contains the pump cylinder 38 as a separately inserted part. However, a pump housing is generally to be understood as all parts of the pump that are fixed relative to the container or against which the actuating lever moves axially.

Am Pumpengehäuse 13c ist in einer ringförmigen Randausnehmung 39 ein Ring 22c eingesetzt und durch Einschnappen eines ringförmigen Wulstes 40 in eine entsprechende Nut gegen axiale Bewegung gesichert und in seiner Drehbewegung kontrolliert gebremst. Am Außenumfang des Ringes, der mit dem Außenumfang des Pumpengehäuses 13c bündig ist, sind die vier Vorsprünge 19b angeformt, die mit den Ausnehmungen 33, 34 zusammenarbeiten. Die Anordnung dieses gegen einen gewissen Widerstand drehbaren Ringes 22c ermöglicht es, den Betätigungsdrücker 14b in eine beliebige Lage zu drehen und von dieser Grundstellung aus die anhand der Figuren 5 und 6 beschriebene Funktion (Pumpenbetätigung/ gesperrte Betätigung/Sicherungsstellung) auszuführen.On the pump housing 13c, a ring 22c is inserted in an annular edge recess 39 and secured by snapping an annular bead 40 into a corresponding groove against axial movement and its braking movement being controlled in a controlled manner. The four projections 19b, which cooperate with the recesses 33, 34, are formed on the outer circumference of the ring, which is flush with the outer circumference of the pump housing 13c. The arrangement of this ring 22c, which can be rotated against a certain resistance, makes it possible to turn the actuation button 14b into any position and, from this basic position, to perform the function described with reference to FIGS. 5 and 6 (pump actuation / blocked actuation / securing position).

Dies ist wichtig, um z. B. das Mündungsrohr 18 in eine zum Transport geeignete Lage zu drehen und trotzdem den Betätigungsdrücker in axialer Richtung zu sichern. Statt des Mündungsrohres könnte jedoch auch eine Zerstäuberdüse oder eine generell andere Gestaltung des Betätigungsdrükkers verwendet werden.This is important to e.g. B. to turn the muzzle tube 18 into a suitable position for transport and still secure the actuating button in the axial direction. Instead of of the muzzle tube, however, an atomizing nozzle or a generally different design of the actuating button could also be used.

Claims (10)

1. Zerstäuber- oder Dosierpumpe mit einem Pumpengehäuse (13, 13b, 13c) und einem demgegenüber verschiebbaren Betätigungsdrücker (14, 14a, 14b), wobei am Pumpengehäuse und Betätigungsdrücker zusammenwirkende Vorsprünge (19, 19a, 19b, 20, 23, 23a, 33, 34) vorgesehen sind, dadurch gekennzeichnet, daß wenigstens einer der Vorsprünge oder Ausnehmungen an einem gegenüber dem Pumpengehäuse (13, 13b, 13c) drehbaren Teil (14, 14a, 14b, 22, 22a, 22c) angebracht sind.1. atomizer or metering pump with a pump housing (13, 13b, 13c) and an actuating push button (14, 14a, 14b) that can be displaced in relation to it, wherein projections (19, 19a, 19b, 20, 23, 23a, 33) interacting on the pump housing and actuating push button , 34) are provided, characterized in that at least one of the projections or recesses is attached to a part (14, 14a, 14b, 22, 22a, 22c) which is rotatable relative to the pump housing (13, 13b, 13c). 2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Vorsprünge und Ausnehmungen (19, 19a, 19b, 23a, 33, 34, 35, 29) zur gegenseitigen Verriegelung von Pumpengehäuse (13, 13b, 13c) und Betätigungsdrücker (14, 14a, 14b) gegen Betätigung der Pumpe (11) in zumindest einer vorgegebenen Drehstellung zusammenwirken.2. Pump according to claim 1, characterized in that the projections and recesses (19, 19a, 19b, 23a, 33, 34, 35, 29) for the mutual locking of the pump housing (13, 13b, 13c) and actuating pushers (14, 14a , 14b) interact against actuation of the pump (11) in at least one predetermined rotational position. 3. Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vorsprünge und Ausnehmungen zumindest teilweise hinterschnitten ausgebildet sind und den Betätigungsdrükker (14a, 14b) in einer vorgegebenen Drehstellung gegen Abziehen von der Pumpe sichern.3. Pump according to claim 1 or 2, characterized in that the projections and recesses are at least partially undercut and secure the actuating pushers (14a, 14b) in a predetermined rotational position against being pulled off the pump. 4. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vorsprünge und Ausnehmungen (19, 19a; 20, 23, 23a) zur Freigabe eines je nach Drehstellung unterschiedlichen Pumpenweges miteinander zusammenwirken.4. Pump according to one of the preceding claims, characterized in that the projections and recesses (19, 19a; 20, 23, 23a) cooperate with each other to release a different pump path depending on the rotational position. 5. Pumpe nach Anspruch 4, dadurch gekennzeichnet, daß ein Vorsprung (19a) mit einer kurven- oder vorzugweise stufenförmig abgesetzten Fläche (26a) zusammenwirkt.5. Pump according to claim 4, characterized in that a projection (19a) cooperates with a curved or preferably stepped surface (26a). 6. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das drehbare Teil ein vorzugsweise auf dem Pumpengehäuse (13, 13c) gelagerter Ring (22, 22a, 22c) ist.6. Pump according to one of the preceding claims, characterized in that the rotatable part is a preferably on the pump housing (13, 13c) mounted ring (22, 22a, 22c). 7. Pumpe nach einem der Ansprüche 4 oder und 6, dadurch gekennzeichnet, daß in dem am Pumpengehäuse (13) vorzugsweise begrenzt drehbar gelagerten Ring (22) und in dem in Richtung auf den Betätigungsdrücker (14) benachbarten Bereich (21) des Pumpengehäuses miteinander zum Fluchten zu bringende axiale Nuten (20, 23) vorgesehen sind, in denen wenigstens ein innerer Vorsprung (19) des diesen Bereich ergreifenden Betätigungsdrücker (14) laufen können.7. Pump according to one of claims 4 or and 6, characterized in that in the pump housing (13) preferably rotatably mounted to a limited extent ring (22) and in the direction towards the actuating button (14) adjacent region (21) of the pump housing with each other Axial grooves (20, 23) to be brought into alignment are provided, in which at least one inner projection (19) of the actuating lever (14) engaging in this area can run. 8. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens ein Vorsprung (19b) mit einer über einen Teil eines Kreisumfanges sich erstreckenden Ausnehmung (34) zusammenwirkt, deren beide Enden (37) die Bewegung des Vorsprunges in der Ausnehmung begrenzen und daß im Bereich eines Endes der Ausnehmung eine die axiale Bewegung des Vorsprunges (19b) ermöglichende axiale Nuten (33) vorgesehen ist.8. Pump according to one of the preceding claims, characterized in that at least one projection (19b) with a recess (34) extending over a part of a circular circumference cooperates, the two ends (37) of which limit the movement of the projection in the recess and that in the region of one end of the recess an axial grooves (33 ) is provided. 9. Pumpe nach Anspruch 8, dadurch gekennzeichnet, daß die Ausnehmung (34) eine an der dem Pumpengehäuse (13) zugekehrten Seite des Betätigungsdrückers (14b) vorgesehene, zu dieser Seite hin offene innere Stufe ist, die im Bereich des anderen Endes (37) von einem den Vorsprung in einer Sicherheits-Drehstellung in axialer Richtung vom Pumpengehäuse (13b) hinweg festliegenden Steg (35) überdeckt ist, wobei vorzugsweise in der Sicherheits-Dreh-Drehstellung eine Rast (36) für den Vorsprung (19b) vorgesehen ist.9. Pump according to claim 8, characterized in that the recess (34) on the side facing the pump housing (13) of the actuating button (14b) is provided, to this side open inner step, which is in the region of the other end (37 ) is covered by a web (35) which fixes the projection in a safety rotary position in the axial direction away from the pump housing (13b), a catch (36) for the projection (19b) preferably being provided in the rotary security position. 10. Pumpe nach Anspruch 9, dadurch gekennzeichnet, daß ein Aufschraubgewinde für die Pumpe zum Aufschrauben auf einen Behälter und die Anordnung der Ausnehmung (34) so getroffen sind, daß der Vorsprung (19b) sich beim Aufschrauben in der Sicherheits-Drehstellung befindet.10. Pump according to claim 9, characterized in that a screw thread for the pump for screwing onto a container and the arrangement of the recess (34) are made such that the projection (19b) is in the safety rotary position when screwed on.
EP83104927A 1982-07-10 1983-05-19 Spray or dosage pump Expired EP0098939B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104927T ATE31391T1 (en) 1982-07-10 1983-05-19 ATOMIZER OR DOSING PUMP.

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Application Number Priority Date Filing Date Title
DE3225910 1982-07-10
DE19823225910 DE3225910A1 (en) 1982-07-10 1982-07-10 SPRAYER OR DOSING PUMP

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EP0098939A2 true EP0098939A2 (en) 1984-01-25
EP0098939A3 EP0098939A3 (en) 1984-12-19
EP0098939B1 EP0098939B1 (en) 1987-12-16

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EP (1) EP0098939B1 (en)
AT (1) ATE31391T1 (en)
DE (2) DE3225910A1 (en)
ES (1) ES281198Y (en)

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Also Published As

Publication number Publication date
ATE31391T1 (en) 1988-01-15
ES281198U (en) 1985-10-16
DE3374920D1 (en) 1988-01-28
EP0098939B1 (en) 1987-12-16
DE3225910A1 (en) 1984-01-12
EP0098939A3 (en) 1984-12-19
ES281198Y (en) 1986-05-16

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