WO2013185905A1 - Dispenser for the measured dispensing of liquid or pasty media - Google Patents
Dispenser for the measured dispensing of liquid or pasty media Download PDFInfo
- Publication number
- WO2013185905A1 WO2013185905A1 PCT/EP2013/001704 EP2013001704W WO2013185905A1 WO 2013185905 A1 WO2013185905 A1 WO 2013185905A1 EP 2013001704 W EP2013001704 W EP 2013001704W WO 2013185905 A1 WO2013185905 A1 WO 2013185905A1
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- WO
- WIPO (PCT)
- Prior art keywords
- piston
- pusher
- dispenser according
- spring
- clamping slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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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
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0075—Two outlet valves being placed in a delivery conduit, one downstream the other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/006—Sprayers or atomisers specially adapted for therapeutic purposes operated by applying mechanical pressure to the liquid to be sprayed or atomised
- A61M11/007—Syringe-type or piston-type sprayers or atomisers
-
- 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
- B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure stroke
-
- 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
- B05B11/109—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 the dispensing stroke being affected by the stored energy of a spring
- B05B11/1092—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 the dispensing stroke being affected by the stored energy of a spring automatically released from a loaded state at the end of the loading stroke
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
- G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
- G01F11/025—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0064—Lift valves
- B05B11/0067—Lift valves having a valve seat located downstream the valve element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0072—A valve member forming part of an outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- 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
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
-
- 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
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
Definitions
- the invention relates to a dispenser for the metered discharge of liquid or pasty media from a container according to the preamble of claim 1.
- a dispenser for the metered discharge of liquid media which is designed as a spray pump with a metering and a loading chamber and from which promotes a piston.
- the piston can perform a shot-like feed movement as a delivery stroke to output the volume content of the loading chamber by displacing.
- the disadvantage here is that the structural design allows underdosing of the required output of the volume content of the loading chamber.
- the object of the invention is therefore to provide a dispenser for the metered discharge of liquid or pasty media, which avoids underdosing.
- a dispenser for the metered discharge of liquid or pasty media which has a tensioning and extraction system, which provides for a metered discharge a driver for the piston, which is inactive during clamping of the cocking slide and active in a triggered cocking slide.
- tensioning the cocking slide there is a disengaged position in which the driver is preferably outside a raceway of the piston and thus can not exert any feed on the piston when it comes to releasing a pusher before the clamping operation is completed. Consequently, if the cocking slide is relieved before the cocking slide has been triggered by the trigger, the piston remains inoperative for lack of active engagement, although the cocking slide moves.
- the cocking slide transmits the restoring torque of a compression spring to the piston only after completion of the clamping process. Only then, when the cocked cocking slide is decoupled by a triggering operation of the pusher, the cocking slide can transmit a drag force on the piston so that it executes a delivery stroke.
- An engagement position of the cocking slide with the piston is also spring-loaded, which ensures that the engagement position only briefly, ie for a delivery stroke, comes into operation.
- the spring element in the form of a resilient lever is arranged so that this in the normal position, ie in a basic position of the dispenser and the clamping operation, preferably unloaded.
- the trigger system according to the invention makes it possible that the operations of clamping and releasing the cocking slide can be controlled manually by pressing one or more pushers.
- the dispenser according to the invention can be controlled in one or two stages.
- FIG. 1 shows schematically a section of a pump of a dispenser in a basic position with a cocking slide in a disengaged position with a piston
- FIG. 2 shows schematically the pump according to FIG. 1 with a cocked cocking slide immediately before an actuation of the triggering device
- FIG. 3 shows schematically the pump according to FIG. 1 with tensioned cocking slide at the end of the actuation of the triggering device
- Fig. 4 shows schematically the pump according to Fig.1 with a triggered cocking slide in an engaged position for the piston at the end of an acceleration phase and before a dragging of the piston with a drag force for discharging the volume content of a loading chamber.
- FIGS. 1 to 4 show a dispenser 1 for the metered discharge of liquid or pasty media from a container 2.
- a pump part 3 can be fixed to the container 2.
- the pump part 3 comprises a valve-limited cylinder 4, in which a trained with a passageway 5 piston 6 back and forth is movable.
- the cylinder 4 has automatic inlet and outlet valves 13, 4.
- the cylinder 4 is preferably formed by inner sleeve nozzle 7, 8, in which the piston 6 is guided as a connecting piece end and sealed.
- the inlet-side inner sleeve nozzle 7 is provided here for example on a dispenser housing 9.
- the outlet-side inner sleeve nozzle 8 is connected to a discharge head 10.
- the piston 6 carries at each end a sealing element 11, 12 which limits an inlet-side (suction-side) metering chamber 15 and an outlet-side (discharge-side) metering chamber 6 in the cylinder 4 with the respectively associated valve 13, 14.
- the piston 6 is double-acting, as each side of the piston sucks and expels. This ensures that the sucked dosing corresponds to the discharge rate.
- the associated valves 13, 14 may be formed selectable, for example, as a beak valve, ball valve, etc., which prevent backflow.
- the valves 13, 14 are therefore backflow preventer, which open automatically in permissible flow direction.
- a tensioning and extraction system 17 is provided which can be actuated by at least one pusher 18.
- the pusher 18 is guided on the dispenser housing 9 for at least one, in particular translational, movement.
- a first compression spring 19 is provided for spring preload of the pusher 18 relative to the dispenser housing 9. The first compression spring 19 ensures that the pusher 8 can be actuated against an adjustable spring force.
- the handling of the dispenser 1 can be influenced.
- a cocking slide 20 is releasably coupled.
- the cocking slide 20 against a restoring force of a second compression spring 21 can be tensioned.
- the cocking slide 20 has a sear 22.
- the cocking slide 20 can be coupled to the pusher 18 for transmitting an actuating movement of the pusher 18 to the cocking slide 20 in a clamping direction X.
- the sear 22 couples the cocking slide 20 releasably to the pusher 18.
- the sear 22 is supported, for example a shoulder or undercut 23 of the pusher 18th from, resulting in a coupling in the clamping direction X results.
- the pusher 18 also has a triggering device 24 for notching the sear 22, so that the cocking slide 20 is decoupled from the pusher 18.
- a force acting on the cocking slide 20 restoring force of the second compression spring 21 results in notched catch 22 to a feed of the cocking slide 20 in a conveying direction Y.
- the conveying direction Y is here the kinematic reversal of the clamping direction X.
- the triggering device 24 is for example a ramp with a path component in Clamping direction X, which causes a deflection of the sear 22 after an additional stretch. Can be favored the notching of the sear 22 by a stop 26, which promotes a deflection of the sear 22 in the operation of the pusher 18.
- a guide bevel 27 may be provided, via which the sear 22 can slide on the stop 26.
- the triggering device 24 limits a clamping distance in the clamping direction X for clamping the cocking slide 20 against the second compression spring 21 by the pusher 18.
- the length of the clamping distance is selectable and depends, inter alia, which restoring moment the compression spring 21 is to build up as a drag force the piston 6 acts when it performs a delivery stroke in the conveying direction Y.
- the pusher 18 also preferably has an inner-walled guide surface 25 which holds the notched catch 22 when advancing the cocking slide 20 in the conveying direction Y, as shown in FIG. 4.
- the pusher 18 may be combined with an additional release element that can be operated separately with tensioned cocking slide 20.
- the triggering of a delivery stroke and thus a dispenser discharge would then only with tensioned cocking slide 20 Operation of the additional release element done.
- the pusher 18 would then operate in two or two stages.
- the cocking slide 20 is preferably formed sleeve-like and is arranged coaxially with the pusher 18 and the piston 6 guided axially displaceable.
- a guide bushing 28 may be formed, in which the cocking slide 20 protrudes with a lower end and on which the cocking slide 20 directed slidably supported.
- the cocking slide 20 serves as a drive for the piston 6 in the clamping direction X and temporarily in the conveying direction Y.
- the piston 6 performs a return stroke.
- the return stroke direction and the tensioning direction X are preferably substantially rectified.
- the cocking slide 20 preferably has on the head side at least one projection or jaw 29 which engages the piston 6 in order to transmit the tensioning of the cocking slide 20 in the clamping direction as a return stroke to the piston 6.
- the piston 6 preferably has a collar 30 on which the cocking slide 20 can engage with the jaw 29.
- the clamping slide 20 moves during clamping in the clamping direction X, starting from the basic position along a distance R1 against the spring force of the second compression spring 21 before it engages the piston 6 and transmits to this a return stroke.
- the distance R1 is selectable and serves to set an acceleration component, which can be transmitted to the piston 6, the triggered cocking slide 20.
- the distance R1 increases the restoring force and thus the drag force for the piston 6, which transmits the cocking slide 20 upon execution of a feed in the conveying direction Y on the piston 6.
- a nasal application is preferably a higher Restoring force and thus set a longer scaffoldweg R1, as for example in an eye application.
- the return stroke of the piston 6 is predetermined by the volume content of the inlet-side metering chambers 15.
- the piston 6 is moved along a distance R2, which here corresponds to the height of the inlet-side metering chamber 15.
- the distance R2 increases the restoring force and thus the drag force for the piston 6 by an additional compression of the compression spring 21.
- the restoring force of the compression spring 21 generated by the return stroke of the piston 6 may be sufficient as towing force alone.
- a route R1 is then omitted. This applies for example when discharging an accelerated drop application.
- the feed of the triggered cocking slide 20 can be combined via the adjustable restoring force of the second compression spring 21 with a selectable acceleration.
- the spring stiffness of the compression spring 21 is selected application-related.
- the cocking slide 20 For transmitting the feed of the cocking slide 20 on the piston 6 in the conveying direction Y, the cocking slide 20 has a driver 31.
- the spring element 32 may be a bending spring, for example. Controlled by the pusher 18, this spring element 32 is pivotable from a disengaged position to the piston 6, as shown in FIGS. 1 and 2, into a spring-loaded engagement position for the piston 6, as shown in FIGS. 3 and 4.
- the spring-loaded engagement position only comes into operation for a short time, specifically when the cocking slide 20, which is cocked over the tensioning and extraction system 17, performs the feed, ie disengages and is thus decoupled from the pusher 18. Only when the cocking slide 20 has been fully tensioned, this can act on the piston 6. After disengaging the cocking slide 20 accelerates this first in response to the set restoring force of the second compression spring 21 and an optionally set acceleration path until the pivoted in engagement position driver 31 engages the piston 6 and forces the piston 6 to perform a delivery stroke.
- the delivery stroke takes place here on a delivery stroke R3 (see Fig. 3), which is determined by the volume content of the metering chamber 16, in particular their height.
- the medium introduced into the discharge-side metering chamber 16 is discharged through this delivery stroke.
- the discharge-side metering chamber 16 is therefore also referred to as a loading chamber.
- the paths of the return stroke R2 and the delivery stroke R3 are preferably the same.
- the cocking slide 20 can act on the piston 6 only in the direction of the return stroke, ie in the clamping direction X.
- the piston 6 can be moved back a part of the return stroke R2, so be moved in the clamping direction X. If then the clamping operation is interrupted because, for example, the trigger 18 is released, relieves the only partially cocked cocking slide 20, without this the piston 6 entrains at a feed.
- the cocking slide 20 is in the disengaged position to the piston 6. The piston 6 simply stops, since no driving force acts on him.
- the resilient lever 32 is preferably articulated as a pin-like spring suspension on the cocking slide 20, at the free end of the sear 22 as an outer-side functional element and the driver 31 are formed as an inner-side functional element together.
- cocking slide 20 can furthermore several catch pawls 22 and driver 31 are arranged circumferentially distributed. Particularly preferred are two or three distributed levers 32nd
- the pusher 18 has for this purpose the inner-walled guide surface 25.
- the pusher 18 is preferably sleeve-shaped and formed with a diameter graduation, wherein a smaller diameter in the feed direction is arranged on the discharge side and the inner wall formed there forms the guide surface 25 for securing the engaged position of the cocking slide 20 to the piston 6.
- the shoulder or undercut 23 may be provided in the region of the diameter transition.
- the inlet-side metering chamber 15 is connected to the container 2 via the inlet valve 13.
- the discharge-side metering chamber 16 can be connected to a discharge opening 33 via the outlet valve 14.
- the discharge head 10, which adjoins the outlet valve 14, is formed in a known manner, as described for example in WO 2009/149825 A1. Thereafter, the discharge head 10 comprises a discharge nozzle 34 with a discharge opening 33 which is provided on the front side of the discharge nozzle 34.
- an inner sleeve 35 is arranged, which limits a media channel 36, which connects to the discharge-side metering chamber 16.
- the media channel 36 is automatically closed by a spring-loaded valve body 37.
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Abstract
Description
Spender zum dosierten Austragen von Dispenser for the dosed discharge of
flüssigen oder pastösen Medien liquid or pasty media
Die Erfindung betrifft einen Spender zum dosierten Austragen von flüssigen oder pastösen Medien aus einem Behälter nach dem Oberbegriff des Anspruchs 1. The invention relates to a dispenser for the metered discharge of liquid or pasty media from a container according to the preamble of claim 1.
Aus WO 2007/078308 A2 ist ein Spender zum dosierten Austragen von flüssigen Medien bekannt, der als Sprühpumpe mit einer Dosier- und einer Ladekammer ausgebildet ist und aus denen ein Kolben fördert. Mittels eines Abzugssystems kann der Kolben eine schussartige Vorschubbewegung als Förderhub ausführen, um den Volumeninhalt der Ladekammer durch Verdrängen auszugeben. Nachteilig hierbei ist, dass die konstruktive Ausführung eine Unterdosierung der geforderten Ausbringung des Volumeninhalts der Ladekammer zulässt. Wenn ein Drücker zum Betätigen der Pumpe losgelassen wird, bevor ein Spannvorgang abgeschlossen ist, wird die bis dahin in die Ladekammer eingebrachte Teilmenge an Medium ausgebracht. From WO 2007/078308 A2 a dispenser for the metered discharge of liquid media is known, which is designed as a spray pump with a metering and a loading chamber and from which promotes a piston. By means of a trigger system, the piston can perform a shot-like feed movement as a delivery stroke to output the volume content of the loading chamber by displacing. The disadvantage here is that the structural design allows underdosing of the required output of the volume content of the loading chamber. When a pusher is released to operate the pump before a clamping operation is completed, the subset introduced until then into the loading chamber becomes applied to medium.
Aus EP 0 295 075 B1 ist ein Spender mit einer Vorschubsvorrichtung für einen Kolben bekannt, die in eine Außereingriffsstellung gebracht werden kann. From EP 0 295 075 B1 a dispenser with a feed device for a piston is known, which can be brought into a disengaged position.
Bei pharmazeutischen Anwendungen ist die Dosiergenauigkeit sehr wichtig und unterliegt hohen Anforderungen, so dass das Ausgeben von Fehlmengen, insbesondere von Mindermengen, als ein klarer Nachteil zu werten ist. In pharmaceutical applications, the dosing accuracy is very important and is subject to high requirements, so that the issuing of shortages, especially of small quantities, is to be regarded as a clear disadvantage.
Aufgabe der Erfindung ist es daher, einen Spender zum dosierten Austragen von flüssigen oder pastösen Medien zu schaffen, der eine Unterdosierung vermeidet. The object of the invention is therefore to provide a dispenser for the metered discharge of liquid or pasty media, which avoids underdosing.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. This object is solved by the characterizing features of claim 1.
Hierdurch wird ein Spender zum dosierten Austragen von flüssigen oder pastösen Medien geschaffen, der ein Spann- und Abzugssystem aufweist, das für ein dosiertes Austragen einen Mitnehmer für den Kolben vorsieht, der beim Spannen des Spannschiebers inaktiv und bei einem ausgelösten Spannschieber aktiv ist. Beim Spannen des Spannschiebers liegt eine Außereingriffsstellung vor, bei der der Mitnehmer vorzugsweise außerhalb einer Laufbahn des Kolbens liegt und damit keinen Vorschub auf den Kolben ausüben kann, wenn es zu einem Loslassen eines Drückers kommt, bevor der Spannvorgang abgeschlossen ist. Wird demzufolge der Spannschieber entlastet, bevor der Spannschieber vom Drücker ausgelöst wurde, bleibt der Kolben mangels Wirkeingriff stehen, obwohl der Spannschieber sich bewegt. Der Spannschieber überträgt das Rückstellmoment einer Druckfeder auf den Kolben nur nach Abschluss des Spannvorganges. Erst dann, wenn der gespannte Spannschieber durch einen Auslösevorgang vom Drücker entkoppelt ist, kann der Spannschieber eine Schleppkraft auf den Kolben übertragen, damit dieser einen Förderhub ausführt. As a result, a dispenser for the metered discharge of liquid or pasty media is created, which has a tensioning and extraction system, which provides for a metered discharge a driver for the piston, which is inactive during clamping of the cocking slide and active in a triggered cocking slide. When tensioning the cocking slide there is a disengaged position in which the driver is preferably outside a raceway of the piston and thus can not exert any feed on the piston when it comes to releasing a pusher before the clamping operation is completed. Consequently, if the cocking slide is relieved before the cocking slide has been triggered by the trigger, the piston remains inoperative for lack of active engagement, although the cocking slide moves. The cocking slide transmits the restoring torque of a compression spring to the piston only after completion of the clamping process. Only then, when the cocked cocking slide is decoupled by a triggering operation of the pusher, the cocking slide can transmit a drag force on the piston so that it executes a delivery stroke.
Eine Eingriffsstellung des Spannschiebers mit dem Kolben ist zudem federbelastet, wodurch sichergestellt ist, dass die Eingriffsstellung nur kurzzeitig, d.h. für einen Förderhub, in Funktion tritt. Das Federelement in Form eines federnden Hebels ist so angeordnet, dass dieses in Normalstellung, d.h. in einer Grundstellung des Spenders und beim Spannvorgang, vorzugsweise unbelastet ist. An engagement position of the cocking slide with the piston is also spring-loaded, which ensures that the engagement position only briefly, ie for a delivery stroke, comes into operation. The spring element in the form of a resilient lever is arranged so that this in the normal position, ie in a basic position of the dispenser and the clamping operation, preferably unloaded.
Das erfindungsgemäße Abzugssystem ermöglicht dabei, dass die Vorgänge des Spannens und Auslösens des Spannschiebers durch Betätigen eines oder mehrerer Drücker manuell gesteuert werden kann. Der erfindungsgemäße Spender kann dabei ein- oder zweistufig gesteuert werden. The trigger system according to the invention makes it possible that the operations of clamping and releasing the cocking slide can be controlled manually by pressing one or more pushers. The dispenser according to the invention can be controlled in one or two stages.
Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen. Further embodiments of the invention are described in the following description and the dependent claims.
Die Erfindung wird nachstehend anhand des in den beigefügten Abbildungen dargestellten Ausführungsbeispiels näher erläutert. The invention will be explained in more detail with reference to the embodiment shown in the accompanying drawings.
Fig. 1 zeigt schematisch einen Schnitt einer Pumpe eines Spenders in einer Grundstellung mit einem Spannschieber in einer Außereingriffsstellung mit einem Kolben, 1 shows schematically a section of a pump of a dispenser in a basic position with a cocking slide in a disengaged position with a piston,
Fig. 2 zeigt schematisch die Pumpe gemäß Fig. 1 mit gespanntem Spannschieber unmittelbar vor einer Betätigung der Auslöseeinrichtung, 2 shows schematically the pump according to FIG. 1 with a cocked cocking slide immediately before an actuation of the triggering device,
Fig. 3 zeigt schematisch die Pumpe gemäß Fig. 1 mit gespanntem Spannschieber am Ende der Betätigung der Auslöseeinrichtung, 3 shows schematically the pump according to FIG. 1 with tensioned cocking slide at the end of the actuation of the triggering device,
Fig. 4 zeigt schematisch die Pumpe gemäß Fig.1 mit einem ausgelösten Spannschieber in einer Eingriffsstellung für den Kolben am Ende einer Beschleunigungsphase und vor einem Schleppen des Kolbens mit einer Schleppkraft zum Austragen des Volumeninhalts einer Ladekammer. Fig. 4 shows schematically the pump according to Fig.1 with a triggered cocking slide in an engaged position for the piston at the end of an acceleration phase and before a dragging of the piston with a drag force for discharging the volume content of a loading chamber.
Die Fig. 1 bis Fig. 4 zeigen einen Spender 1 zum dosierten Austragen von flüssigen oder pastösen Medien aus einem Behälter 2. Dazu ist an dem Behälter 2 ein Pumpenteil 3 festlegbar. Das Pumpenteil 3 umfasst einen ventilbegrenzten Zylinder 4, in dem ein mit einem Durchlasskanal 5 ausgebildeter Kolben 6 hin- und herbewegbar ist. Der Zylinder 4 besitzt selbsttätige Ein- und Auslassventile 13, 4. Der Zylinder 4 wird vorzugsweise von Innenhülsenstutzen 7, 8 gebildet, in denen der Kolben 6 als Verbindungsstück endseitig geführt und abgedichtet ist. Der einlassseitige Innenhülsenstutzen 7 ist hier beispielsweise an einem Spendergehäuse 9 vorgesehen. Der auslassseitige Innenhülsenstutzen 8 ist mit einem Austragkopf 10 verbunden. Der Kolben 6 trägt endseitig jeweils ein Dichtelement 11 , 12, das mit dem jeweils zugeordneten Ventil 13, 14 eine einlassseitige (saugseitige) Dosierkammer 15 und eine auslassseitige (austragseitige) Dosierkammer 6 in dem Zylinder 4 begrenzt. Der Kolben 6 ist doppelwirkend, da jede Kolbenseite ansaugt und ausstößt. Hierdurch wird sichergestellt, dass die angesaugte Dosiermenge der Ausstoßmenge entspricht. Die zugeordneten Ventile 13, 14 können wählbar ausgebildet sein, beispielsweise als Schnabelventil, Ballventil usw., die einen Rückfluss verhindern. Die Ventile 13, 14 sind folglich Rückflussverhinderer, die bei erlaubter Durchflussrichtung selbsttätig öffnen. FIGS. 1 to 4 show a dispenser 1 for the metered discharge of liquid or pasty media from a container 2. For this purpose, a pump part 3 can be fixed to the container 2. The pump part 3 comprises a valve-limited cylinder 4, in which a trained with a passageway 5 piston 6 back and forth is movable. The cylinder 4 has automatic inlet and outlet valves 13, 4. The cylinder 4 is preferably formed by inner sleeve nozzle 7, 8, in which the piston 6 is guided as a connecting piece end and sealed. The inlet-side inner sleeve nozzle 7 is provided here for example on a dispenser housing 9. The outlet-side inner sleeve nozzle 8 is connected to a discharge head 10. The piston 6 carries at each end a sealing element 11, 12 which limits an inlet-side (suction-side) metering chamber 15 and an outlet-side (discharge-side) metering chamber 6 in the cylinder 4 with the respectively associated valve 13, 14. The piston 6 is double-acting, as each side of the piston sucks and expels. This ensures that the sucked dosing corresponds to the discharge rate. The associated valves 13, 14 may be formed selectable, for example, as a beak valve, ball valve, etc., which prevent backflow. The valves 13, 14 are therefore backflow preventer, which open automatically in permissible flow direction.
Zum Bewegen des Kolbens 6 ist ein Spann- und Abzugssystem 17 vorgesehen, das durch mindestens einen Drücker 18 betätigbar ist. Der Drücker 18 ist an dem Spendergehäuse 9 für mindestens eine, insbesondere translatorische, Bewegung geführt. Eine erste Druckfeder 19 ist zur Federvorspannung des Drückers 18 gegenüber dem Spendergehäuse 9 vorgesehen. Die erste Druckfeder 19 sorgt dafür, dass der Drücker 8 gegen eine einstellbare Federkraft betätigbar ist. Das Handling des Spenders 1 ist dadurch beeinflussbar. To move the piston 6, a tensioning and extraction system 17 is provided which can be actuated by at least one pusher 18. The pusher 18 is guided on the dispenser housing 9 for at least one, in particular translational, movement. A first compression spring 19 is provided for spring preload of the pusher 18 relative to the dispenser housing 9. The first compression spring 19 ensures that the pusher 8 can be actuated against an adjustable spring force. The handling of the dispenser 1 can be influenced.
An den Drücker 18 ist ein Spannschieber 20 auslösbar gekoppelt. Mittels des Drückers 18 ist der Spannschieber 20 gegen eine Rückstellkraft einer zweiten Druckfeder 21 spannbar. Der Spannschieber 20 weist eine Fangklinke 22 auf. Mittels der Fangklinke 22 ist der Spannschieber 20 an den Drücker 18 koppelbar zur Übertragung einer Betätigungsbewegung des Drückers 18 auf den Spannschieber 20 in einer Spannrichtung X. Die Fangklinke 22 koppelt den Spannschieber 20 auslösbar an den Drücker 18. Dazu stützt sich die Fangklinke 22 beispielsweise an einer Schulter oder Hinterschneidung 23 des Drückers 18 ab, wodurch sich eine Kopplung in Spannrichtung X ergibt. To the pusher 18, a cocking slide 20 is releasably coupled. By means of the pusher 18, the cocking slide 20 against a restoring force of a second compression spring 21 can be tensioned. The cocking slide 20 has a sear 22. By means of the sear 22, the cocking slide 20 can be coupled to the pusher 18 for transmitting an actuating movement of the pusher 18 to the cocking slide 20 in a clamping direction X. The sear 22 couples the cocking slide 20 releasably to the pusher 18. For this purpose, the sear 22 is supported, for example a shoulder or undercut 23 of the pusher 18th from, resulting in a coupling in the clamping direction X results.
Der Drücker 18 weist ferner eine Auslöseeinrichtung 24 zum Ausklinken der Fangklinke 22 auf, so dass der Spannschieber 20 vom Drücker 18 entkoppelt wird. Eine auf den Spannschieber 20 wirkende Rückstellkraft der zweiten Druckfeder 21 führt bei ausgeklinkter Fangklinke 22 zu einem Vorschub des Spannschiebers 20 in einer Förderrichtung Y. Die Förderrichtung Y ist hier die kinematische Umkehrung der Spannrichtung X. Die Auslöseeinrichtung 24 ist beispielsweise eine Rampe mit einer Wegkomponente in Spannrichtung X, die eine Auslenkung der Fangklinke 22 nach einer zusätzlichen Spannstrecke bewirkt. Begünstigt werden kann das Ausklinken der Fangklinke 22 durch einen Anschlag 26, der ein Auslenken der Fangklinke 22 bei der Betätigung des Drückers 18 fördert. An der Fangklinke 22 kann eine Führungsschräge 27 vorgesehen sein, über die die Fangklinke 22 an dem Anschlag 26 abgleiten kann. The pusher 18 also has a triggering device 24 for notching the sear 22, so that the cocking slide 20 is decoupled from the pusher 18. A force acting on the cocking slide 20 restoring force of the second compression spring 21 results in notched catch 22 to a feed of the cocking slide 20 in a conveying direction Y. The conveying direction Y is here the kinematic reversal of the clamping direction X. The triggering device 24 is for example a ramp with a path component in Clamping direction X, which causes a deflection of the sear 22 after an additional stretch. Can be favored the notching of the sear 22 by a stop 26, which promotes a deflection of the sear 22 in the operation of the pusher 18. At the sear 22, a guide bevel 27 may be provided, via which the sear 22 can slide on the stop 26.
Die Auslöseeinrichtung 24 begrenzt eine Spannstrecke in Spannrichtung X zum Spannen des Spannschiebers 20 gegen die zweite Druckfeder 21 durch den Drücker 18. Die Länge der Spannstrecke ist wählbar und richtet sich unter anderem danach, welches Rückstellmoment die Druckfeder 21 aufbauen soll, das als eine Schleppkraft auf den Kolben 6 wirkt, wenn dieser in Förderrichtung Y einen Förderhub ausführt. Der Drücker 18 weist ferner vorzugsweise eine innenwandige Führungsfläche 25 auf, die die ausgeklinkte Fangklinke 22 beim Vorschub des Spannschiebers 20 in Förderrichtung Y ausgeklinkt hält, wie dies Fig. 4 zeigt. The triggering device 24 limits a clamping distance in the clamping direction X for clamping the cocking slide 20 against the second compression spring 21 by the pusher 18. The length of the clamping distance is selectable and depends, inter alia, which restoring moment the compression spring 21 is to build up as a drag force the piston 6 acts when it performs a delivery stroke in the conveying direction Y. The pusher 18 also preferably has an inner-walled guide surface 25 which holds the notched catch 22 when advancing the cocking slide 20 in the conveying direction Y, as shown in FIG. 4.
Anstelle des hier einfach- oder einstufigwirkenden Drückers 18, der die auf den Drücker 18 wirkende Betätigungskraft zum Spannen und Auslösen des Spannschiebers 20 überträgt, kann der Drücker 18 mit einem zusätzlichen Freigabeelement kombiniert sein, dass bei gespanntem Spannschieber 20 separat betätigt werden kann. Das Auslösen eines Förderhubs und damit eines Spenderaustrages würde dann bei gespanntem Spannschieber 20 nur nach Betätigung des zusätzlichen Freigabeelementes erfolgen. Der Drücker 18 würde dann zweifach- oder zweistufigwirkend arbeiten. Instead of the single-acting or single-acting pusher 18, which transmits the force acting on the pusher 18 actuating force for tensioning and releasing the cocking slide 20, the pusher 18 may be combined with an additional release element that can be operated separately with tensioned cocking slide 20. The triggering of a delivery stroke and thus a dispenser discharge would then only with tensioned cocking slide 20 Operation of the additional release element done. The pusher 18 would then operate in two or two stages.
Der Spannschieber 20 ist vorzugsweise hülsenartig ausgebildet und ist koaxial zum Drücker 18 und dem Kolben 6 axial verschiebbar geführt angeordnet. Am Spendergehäuse 9 kann eine Führungsbuchse 28 ausgebildet sein, in die der Spannschieber 20 mit einem unteren Ende ragt und über die der Spannschieber 20 gerichtet verschiebbar abstützt. The cocking slide 20 is preferably formed sleeve-like and is arranged coaxially with the pusher 18 and the piston 6 guided axially displaceable. On the dispenser housing 9, a guide bushing 28 may be formed, in which the cocking slide 20 protrudes with a lower end and on which the cocking slide 20 directed slidably supported.
Der Spannschieber 20 dient als Antrieb für den Kolben 6 in Spannrichtung X und zeitweilig in Förderrichtung Y. Mittels des Spannschiebers 20 führt der Kolben 6 einen Rückhub aus. Die Rückhubrichtung und die Spannrichtung X sind vorzugsweise im Wesentlichen gleichgerichtet. Durch den Rückhub des Kolbens 6 wird das in der einlassseitigen Dosierkammer 15 angesaugte Medium in die auslassseitige Dosierkammer 16 befördert, wie Fig. 3 zeigt. Der Spannschieber 20 weist vorzugsweise kopfseitig mindestens einen Vorsprung oder eine Backe 29 auf, die an dem Kolben 6 angreift, um das Spannen des Spannschiebers 20 in Spannrichtung als Rückhub auf den Kolben 6 zu übertragen. Der Kolben 6 weist vorzugsweise einen Kragen 30 auf, an dem der Spannschieber 20 mit der Backe 29 angreifen kann. The cocking slide 20 serves as a drive for the piston 6 in the clamping direction X and temporarily in the conveying direction Y. By means of the cocking slide 20, the piston 6 performs a return stroke. The return stroke direction and the tensioning direction X are preferably substantially rectified. As a result of the return stroke of the piston 6, the medium sucked into the inlet-side metering chamber 15 is conveyed into the outlet-side metering chamber 16, as FIG. 3 shows. The cocking slide 20 preferably has on the head side at least one projection or jaw 29 which engages the piston 6 in order to transmit the tensioning of the cocking slide 20 in the clamping direction as a return stroke to the piston 6. The piston 6 preferably has a collar 30 on which the cocking slide 20 can engage with the jaw 29.
Wie Fig. 1 zeigt, bewegt sich der Spannschieber 20 beim Spannen in Spannrichtung X ausgehend von der Grundstellung entlang einer Wegstrecke R1 entgegen der Federkraft der zweiten Druckfeder 21 , bevor dieser am Kolben 6 angreift und auf diesen einen Rückhub überträgt. Die Wegstrecke R1 ist wählbar und dient der Einstellung einer Beschleunigungskomponente, die der ausgelöste Spannschieber 20 auf den Kolben 6 übertragen kann. Die Wegstrecke R1 erhöht die Rückstellkraft und damit die Schleppkraft für den Kolben 6, die der Spannschieber 20 bei Ausführen eines Vorschubs in Förderrichtung Y auf den Kolben 6 überträgt. Bei einer Nasenapplikation wird vorzugsweise eine höhere Rückstellkraft und damit ein längerer Rückhubweg R1 eingestellt, als beispielsweise bei einer Augenapplikation. As shown in FIG. 1, the clamping slide 20 moves during clamping in the clamping direction X, starting from the basic position along a distance R1 against the spring force of the second compression spring 21 before it engages the piston 6 and transmits to this a return stroke. The distance R1 is selectable and serves to set an acceleration component, which can be transmitted to the piston 6, the triggered cocking slide 20. The distance R1 increases the restoring force and thus the drag force for the piston 6, which transmits the cocking slide 20 upon execution of a feed in the conveying direction Y on the piston 6. In a nasal application is preferably a higher Restoring force and thus set a longer Rückhubweg R1, as for example in an eye application.
Der Rückhub des Kolbens 6 ist durch den Volumeninhalt der einlassseitigen Dosierkammern 15 vorgegeben. Der Kolben 6 wird entlang einer Wegstrecke R2 bewegt, die hier der Höhe der einlassseitigen Dosierkammer 15 entspricht. Die Wegstrecke R2 erhöht die Rückstellkraft und damit die Schleppkraft für den Kolben 6 durch ein zusätzliches Komprimieren der Druckfeder 21. Für bestimmte Anwendungen kann die durch den Rückhub des Kolbens 6 erzeugte Rückstellkraft der Druckfeder 21 als Schleppkraft allein ausreichen. Eine Wegstrecke R1 entfällt dann. Dies findet beispielsweise beim Austragen eines beschleunigten Tropfens Anwendung. Der Vorschub des ausgelösten Spannschiebers 20 ist über die einstellbare Rückstellkraft der zweiten Druckfeder 21 mit einer wählbaren Beschleunigung kombinierbar. Die Federhärte der Druckfeder 21 ist anwendungs- bezogen auswählbar. The return stroke of the piston 6 is predetermined by the volume content of the inlet-side metering chambers 15. The piston 6 is moved along a distance R2, which here corresponds to the height of the inlet-side metering chamber 15. The distance R2 increases the restoring force and thus the drag force for the piston 6 by an additional compression of the compression spring 21. For certain applications, the restoring force of the compression spring 21 generated by the return stroke of the piston 6 may be sufficient as towing force alone. A route R1 is then omitted. This applies for example when discharging an accelerated drop application. The feed of the triggered cocking slide 20 can be combined via the adjustable restoring force of the second compression spring 21 with a selectable acceleration. The spring stiffness of the compression spring 21 is selected application-related.
Zum Übertragen des Vorschubs des Spannschiebers 20 auf den Kolben 6 in Förderrichtung Y weist der Spannschieber 20 einen Mitnehmer 31 auf. Die Anordnung des Mitnehmers 31 am Spannschieber 20 erfolgt über mindestens ein Federelement 32, insbesondere einen federnden Hebel oder Arm 32, an dem der Mitnehmer 31 zum Schleppen des Kolbens 6 vorgesehen ist. Das Federelement 32 kann beispielsweise eine Biegefeder sein. Gesteuert durch den Drücker 18 ist dieses Federelement 32 aus einer Außereingriffsstellung zum Kolben 6, wie Fig.1 und Fig. 2 zeigen, in eine federbelastete Eingriffsstellung für den Kolben 6 schwenkbar, wie Fig. 3 und Fig. 4 zeigen. Die federbelastete Eingriffsstellung tritt nur kurzzeitig in Funktion, und zwar dann, wenn der über das Spann- und Abzugssystem 17 gespannt ausgelöste Spannschieber 20 den Vorschub ausführt, d.h. ausgeklinkt und damit vom Drücker 18 entkoppelt ist. Nur dann, wenn der Spannschieber 20 vollständig gespannt worden ist, kann dieser auf den Kolben 6 einwirken. Nach dem Ausklinken des Spannschiebers 20 beschleunigt dieser zunächst in Abhängigkeit der eingestellten Rückstellkraft der zweiten Druckfeder 21 und einem gegebenenfalls eingestellten Beschleunigungsweg, bis der in Eingriffsstellung geschwenkte Mitnehmer 31 an dem Kolben 6 angreift und den Kolben 6 zum Ausführen eines Förderhubs zwingt. Der Förderhub erfolgt hier auf einer Förderhubstrecke R3 (vgl. Fig. 3), die durch den Volumeninhalt der Dosierkammer 16, insbesondere deren Höhe, bestimmt ist. Das in die austragseitige Dosierkammer 16 eingebrachte Medium wird durch diesen Förderhub ausgetragen. Die austragseitige Dosierkammer 16 wird daher auch als Ladekammer bezeichnet. Die Wege des Rückhubs R2 und des Förderhubs R3 sind vorzugsweise gleich. For transmitting the feed of the cocking slide 20 on the piston 6 in the conveying direction Y, the cocking slide 20 has a driver 31. The arrangement of the driver 31 on the cocking slide 20 via at least one spring element 32, in particular a resilient lever or arm 32 to which the driver 31 is provided for towing the piston 6. The spring element 32 may be a bending spring, for example. Controlled by the pusher 18, this spring element 32 is pivotable from a disengaged position to the piston 6, as shown in FIGS. 1 and 2, into a spring-loaded engagement position for the piston 6, as shown in FIGS. 3 and 4. The spring-loaded engagement position only comes into operation for a short time, specifically when the cocking slide 20, which is cocked over the tensioning and extraction system 17, performs the feed, ie disengages and is thus decoupled from the pusher 18. Only when the cocking slide 20 has been fully tensioned, this can act on the piston 6. After disengaging the cocking slide 20 accelerates this first in response to the set restoring force of the second compression spring 21 and an optionally set acceleration path until the pivoted in engagement position driver 31 engages the piston 6 and forces the piston 6 to perform a delivery stroke. The delivery stroke takes place here on a delivery stroke R3 (see Fig. 3), which is determined by the volume content of the metering chamber 16, in particular their height. The medium introduced into the discharge-side metering chamber 16 is discharged through this delivery stroke. The discharge-side metering chamber 16 is therefore also referred to as a loading chamber. The paths of the return stroke R2 and the delivery stroke R3 are preferably the same.
Solange der Spannschieber 20 mit dem Drücker 18 gekoppelt ist, kann der Spannschieber 20 auf den Kolben 6 nur in Richtung des Rückhubs, also in Spannrichtung X wirken. Dabei kann der Kolben 6 eine Teilstrecke des Rückhubs R2 zurückbewegt werden, also in Spannrichtung X bewegt werden. Wird dann der Spannvorgang unterbrochen, weil beispielsweise der Drücker 18 losgelassen wird, entlastet sich der nur teilweise gespannte Spannschieber 20, ohne dass dieser den Kolben 6 bei einem Vorschub mitschleppt. Der Spannschieber 20 befindet sich in der Außereingriffsstellung zum Kolben 6. Der Kolben 6 bleibt einfach stehen, da keine Antriebskraft auf ihn einwirkt. As long as the cocking slide 20 is coupled to the pusher 18, the cocking slide 20 can act on the piston 6 only in the direction of the return stroke, ie in the clamping direction X. In this case, the piston 6 can be moved back a part of the return stroke R2, so be moved in the clamping direction X. If then the clamping operation is interrupted because, for example, the trigger 18 is released, relieves the only partially cocked cocking slide 20, without this the piston 6 entrains at a feed. The cocking slide 20 is in the disengaged position to the piston 6. The piston 6 simply stops, since no driving force acts on him.
Der federnde Hebel 32 ist vorzugsweise als stiftartige Federaufhängung am Spannschieber 20 angelenkt, an dessen freiem Ende die Fangklinke 22 als außenseitiges Funktionselement und der Mitnehmer 31 als innenseitiges Funktionselement gemeinsam ausgebildet sind. The resilient lever 32 is preferably articulated as a pin-like spring suspension on the cocking slide 20, at the free end of the sear 22 as an outer-side functional element and the driver 31 are formed as an inner-side functional element together.
An dem Spannschieber 20 können femer mehrere Fangklinken 22 und Mitnehmer 31 umfänglich verteilt angeordnet sein. Besonders bevorzugt sind zwei oder drei verteilt angeordnete Hebel 32. At the cocking slide 20 can furthermore several catch pawls 22 and driver 31 are arranged circumferentially distributed. Particularly preferred are two or three distributed levers 32nd
Weiterhin ist bevorzugt, dass der Drücker 18 die federbelastete Eingriffsstellung des mindestens einen Mitnehmers 31 entlang des Vorschubs des Spannschiebers 20, d.h. während des Förderhubs, sichert. Der Drücker 18 weist dazu die innenwandige Führungsfläche 25 auf. Furthermore, it is preferred that the pusher 18, the spring-loaded engagement position the at least one driver 31 along the feed of the cocking slide 20, ie during the delivery stroke, secures. The pusher 18 has for this purpose the inner-walled guide surface 25.
Der Drücker 18 ist vorzugsweise hülsenförmig und mit einer Durchmesserabstufung ausgebildet, wobei ein kleinerer Durchmesser in Vorschubrichtung austragseitig angeordnet ist und die dort ausgebildete Innenwandung die Führungsfläche 25 für die Sicherung der Eingriffsstellung des Spannschiebers 20 zum Kolben 6 bildet. Im Bereich des Durchmesserübergangs kann die Schulter oder Hinterschneidung 23 vorgesehen sein. The pusher 18 is preferably sleeve-shaped and formed with a diameter graduation, wherein a smaller diameter in the feed direction is arranged on the discharge side and the inner wall formed there forms the guide surface 25 for securing the engaged position of the cocking slide 20 to the piston 6. In the region of the diameter transition, the shoulder or undercut 23 may be provided.
Durch ein Loslassen des Drückers 18 am Ende einer Drückerbetätigung wird dieser durch die erste Druckfeder 19 in die Grundstellung bewegt, wie Fig. 1 zeigt. In dieser Grundstellung rastet die Fangklinke 22 des Spannschiebers 20 aufgrund des Rückstellmomentes der Federbelastung des Federelementes 32 bzw. des Hebels wieder ein. By releasing the pusher 18 at the end of a handle operation of this is moved by the first compression spring 19 in the normal position, as shown in FIG. 1. In this basic position, the sear 22 of the cocking slide 20 engages again due to the restoring torque of the spring load of the spring element 32 and the lever.
Die einlassseitige Dosierkammer 15 ist mit dem Behälter 2 über das Einlassventil 13 verbunden. Die austragseitige Dosierkammer 16 ist mit einer Austragöffnung 33 über das Auslassventil 14 verbindbar. Der Austragkopf 10, der an das Auslassventil 14 anschließt, ist in bekannter Weise ausgebildet, wie beispielsweise in WO 2009/149825 A1 beschrieben. Danach umfasst der Austragkopf 10 einen Austragstutzen 34 mit einer Austragöffnung 33, die stirnseitig am Austragstutzen 34 vorgesehen ist. In dem Austragstutzen 34 ist eine Innenhülse 35 angeordnet, die einen Medienkanal 36 begrenzt, der an die austragseitige Dosierkammer 16 anschließt. Der Medienkanal 36 ist durch einen federbelasteten Ventilkörper 37 selbsttätig verschließbar. The inlet-side metering chamber 15 is connected to the container 2 via the inlet valve 13. The discharge-side metering chamber 16 can be connected to a discharge opening 33 via the outlet valve 14. The discharge head 10, which adjoins the outlet valve 14, is formed in a known manner, as described for example in WO 2009/149825 A1. Thereafter, the discharge head 10 comprises a discharge nozzle 34 with a discharge opening 33 which is provided on the front side of the discharge nozzle 34. In the Austragstutzen 34 an inner sleeve 35 is arranged, which limits a media channel 36, which connects to the discharge-side metering chamber 16. The media channel 36 is automatically closed by a spring-loaded valve body 37.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13728971.6A EP2861353A1 (en) | 2012-06-13 | 2013-06-11 | Dispenser for the measured dispensing of liquid or pasty media |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012011655A DE102012011655B3 (en) | 2012-06-13 | 2012-06-13 | Dispenser for the metered discharge of liquid or pasty media |
| DE102012011655.1 | 2012-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013185905A1 true WO2013185905A1 (en) | 2013-12-19 |
Family
ID=48431644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/001704 Ceased WO2013185905A1 (en) | 2012-06-13 | 2013-06-11 | Dispenser for the measured dispensing of liquid or pasty media |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2861353A1 (en) |
| DE (1) | DE102012011655B3 (en) |
| WO (1) | WO2013185905A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025224091A1 (en) * | 2024-04-23 | 2025-10-30 | Invox Belgium Nv | Pumping device comprising multiple valves |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2028014B1 (en) * | 2020-11-16 | 2022-07-05 | Mind Scouts Innovators B V | Personal care fluid manual dosing device and method for dispensing a fluid content from a fluid container with such a fluid manual dosing device |
| WO2022103270A1 (en) * | 2020-11-16 | 2022-05-19 | Mind Scouts Innovators B.V. | Personal care fluid manual dosing device and method for dispensing a fluid content from a fluid container with such a fluid manual dosing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124565A (en) * | 1982-01-20 | 1983-07-25 | Maruichi Seisakusho:Kk | Pressure-accumulating type sprayer |
| EP0295075B1 (en) | 1987-06-12 | 1991-12-11 | Hypoguard (Uk) Limited | Measured dose syringe |
| DE69102922T2 (en) * | 1990-04-06 | 1994-11-03 | Spruehventile Gmbh | Hand-operated pump sprayer for pharmaceutical applications. |
| WO2007078308A2 (en) | 2005-12-22 | 2007-07-12 | Valley Design, Inc. | Metered dispenser with feed-containing piston drive mechanism |
| WO2009149825A1 (en) | 2008-06-10 | 2009-12-17 | Meadwestvaco Calmar Gmbh | Fluid discharge head |
-
2012
- 2012-06-13 DE DE102012011655A patent/DE102012011655B3/en not_active Expired - Fee Related
-
2013
- 2013-06-11 EP EP13728971.6A patent/EP2861353A1/en not_active Withdrawn
- 2013-06-11 WO PCT/EP2013/001704 patent/WO2013185905A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124565A (en) * | 1982-01-20 | 1983-07-25 | Maruichi Seisakusho:Kk | Pressure-accumulating type sprayer |
| EP0295075B1 (en) | 1987-06-12 | 1991-12-11 | Hypoguard (Uk) Limited | Measured dose syringe |
| DE69102922T2 (en) * | 1990-04-06 | 1994-11-03 | Spruehventile Gmbh | Hand-operated pump sprayer for pharmaceutical applications. |
| WO2007078308A2 (en) | 2005-12-22 | 2007-07-12 | Valley Design, Inc. | Metered dispenser with feed-containing piston drive mechanism |
| WO2009149825A1 (en) | 2008-06-10 | 2009-12-17 | Meadwestvaco Calmar Gmbh | Fluid discharge head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025224091A1 (en) * | 2024-04-23 | 2025-10-30 | Invox Belgium Nv | Pumping device comprising multiple valves |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012011655B3 (en) | 2013-06-06 |
| EP2861353A1 (en) | 2015-04-22 |
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