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EP0472985B1 - Device for discharging a fluid - Google Patents

Device for discharging a fluid Download PDF

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Publication number
EP0472985B1
EP0472985B1 EP91113421A EP91113421A EP0472985B1 EP 0472985 B1 EP0472985 B1 EP 0472985B1 EP 91113421 A EP91113421 A EP 91113421A EP 91113421 A EP91113421 A EP 91113421A EP 0472985 B1 EP0472985 B1 EP 0472985B1
Authority
EP
European Patent Office
Prior art keywords
discharge
catch system
movement
locking
guide
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.)
Expired - Lifetime
Application number
EP91113421A
Other languages
German (de)
French (fr)
Other versions
EP0472985A2 (en
EP0472985A3 (en
Inventor
Karl-Heinz Fuchs
Lothar Graf
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
Publication of EP0472985A2 publication Critical patent/EP0472985A2/en
Publication of EP0472985A3 publication Critical patent/EP0472985A3/en
Application granted granted Critical
Publication of EP0472985B1 publication Critical patent/EP0472985B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • 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
    • B05B11/108—Means for counting the number of dispensing strokes

Definitions

  • the invention relates to a discharge device according to the preamble of claim 1. It can be provided for media of any kind and is provided with a discharge actuation for carrying out a discharge process. This is advantageously designed so that it can be moved manually between a starting position and an end or actuation position in a movement cycle, e.g. is movable back and forth. In at least one position, the discharge actuation can expediently be fixed against movements in the actuation direction and / or reset direction with a lock at least within certain movement limits, the lock being intended to be released again or releasable by manual actuation.
  • This lock can e.g. as tamper protection or to prevent unauthorized or accidental use by children and is therefore particularly useful when pharmaceutical or cosmetic media are to be discharged.
  • EP-A-0 098 373 shows a cam which is radially releasable in an annular groove and which is moved axially relative to the annular groove during the pumping stroke.
  • US-A-4 368 830 shows a discharge device with a lock which engages during the actuating movement approximately when the actuating position is reached, so that the actuating member is locked in this actuating position. After disengaging the lock, the actuator must first make another movement or a return stroke to the starting position so that medium can be discharged.
  • the invention is also based on the object of providing a discharge device for media, by means of which disadvantages of known designs are avoided and which, in particular, ensures a high level of security that the lock is engaged.
  • a lock is designed to be self-engaging depending on at least one actuation movement. This means that it can e.g. after one of the several actuation cycles are automatically transferred into the locked position, so that a triggering must be carried out arbitrarily or deliberately in order to carry out a subsequent actuation cycle.
  • the blocking can take place in the starting position, actuating position and / or an intermediate position and it can act both against actuation and against resetting or only against one of these movements, several blocking positions of the same or different blocking effect being possible.
  • the lock works expediently with respect to the associated actuation direction of the discharge actuation, so that the lock can only be released by a movement deviating from the actuation movement for the discharge.
  • a trigger movement that is in the same direction at least one actuation movement would only be necessary for the triggering and only a subsequent actuation to carry out the discharge.
  • the same handle is provided, not for separate handling, both for actuating the discharge by opening a valve, actuating a pipette, a pump or the like, and for unlocking.
  • the handle can form separate actuators for the discharge and unlocking with a circumference and an end face and can be mounted both axially and rotatably approximately linearly.
  • a releasable pull-off protection can also be provided for a discharge and actuating head of the discharge device, so that it can be removed, but is positively secured against inadvertent removal, for example, in a storage state of the discharge device.
  • This pull-off protection is preferably formed by one of the locks or a lock that has the features mentioned.
  • a detection device which is advantageously arranged directly on the discharge device and is not formed by a spatially separate device.
  • data can be, for example, the number of applications that have taken place, the next application date and / or other data that can be identified via one or more synchronously or separately switched displays.
  • Movements of at least one detection device are expediently synchronized with changes in the state of the lock, for example a rotating change of position of the display with or without changing the display symbol and / or a transfer of the detection device into a standby position can be provided such that the detection device is switched on during the subsequent discharge process.
  • an actuating drive for actuating the detection device can be designed in a very simple manner and only have inclined cam surfaces which convert a stroke movement into a rotary movement.
  • a support or base body, which receives the associated locking elements of the lock and / or at least one detection element of the detection device, can be formed by a component which is to be fastened separately from a base body of the discharge conveyor, for example to a storage vessel for the medium.
  • a component which is to be fastened separately from a base body of the discharge conveyor for example to a storage vessel for the medium.
  • one and the same, already pre-assembled discharge unit can optionally be retrofitted with one of the mentioned designs, or this device can be exchanged for a different type.
  • different scales, different actuators or the like can be used. be provided.
  • cams of the lock and / or the detection device or an indicator, such as a display window are arranged on the discharge head and are formed in one piece therewith. The lock can simultaneously form a rotation lock against those forces that occur when the detection device is switched on.
  • the discharge device 1 has a discharge unit 2 designed as a self-contained assembly assembly with a discharge conveyor 3 and a storage vessel 4, which can be operated manually by a discharge actuation 5.
  • the piston unit 7 of a pump 6 engaging for the most part in the storage vessel 4 is actuated, the pump chamber of which has a valve-controlled inlet 8 and a valve-controlled outlet 9.
  • a piston or actuating tappet 10 is provided, which is connected to a conveyor handle in the form of an actuating member 11 in the form of a pressure surface surrounding it and is arranged on the plunger tappet of the piston unit 7 via a plug connection.
  • the actuating plunger 10 is penetrated by an outlet duct 13 connected to the outlet 9, surrounded by a discharge nozzle 12 formed in one piece with it and lying approximately in the pump axis, and has the outlet opening of the discharge unit 2 leading to the outside in the region of its end face.
  • the cylinder housing forms a base body 14 with a cylinder cover, with which the discharge conveyor 3 is fastened to the vessel neck 17 by means of a fastening member 15, for example a crimp ring encompassing a cap-shaped vessel flange 16. Between this vessel flange 16 and the vessel belly 18, the vessel neck 17 forms an annular groove on the outer circumference, which can be delimited on one side by the fastening member 15.
  • the one protruding from the storage vessel 2 Part of the base body and the fastening member 15 are overlapped by a cap 19, which forms the conveying handle 11 with its end face.
  • a detection device 20 is provided, from which a sleeve-shaped base body 21 is placed on the discharge unit 2, which carries a sleeve-shaped detection member 22 on the outer circumference, which is rotatable but axially secured.
  • the detection element 22 can be rotated by the same angular steps about the central axis of the discharge device 1 with the actuating element formed by the conveying handle 11.
  • the base body 21 is pushed axially from the front end onto the discharge unit 2 and is also secured against rotation by a stop or a snap connection 24 in such a way that it can only be rotated relative to the discharge unit 2 due to a relatively large force.
  • the snap connection has on the inner circumference of the base body 21 an annular bead 25 which can also be divided into individual snap cams and which engages in the annular groove formed between the vessel flange 16 and the vessel belly 18 by the vessel neck 17 essentially without play.
  • the detection element 22 is rotatably mounted on a section of the base body 21 with an outer diameter and is axially secured with a snap connection 26 which has an annular bead 27 engaging in an annular groove, so that the detection element 22 can be replaced.
  • the detection member 22 surrounding the attachment 15 forms an essentially continuous and gapless continuation of the outer circumference of the base body 21. Due to its essentially full-surface contact with the outer circumference of the associated section of the casing 28 of the base body 21, the detection member 22 is frictionally 39 with a certain stiffness stored.
  • the conveying handle 11 and the actuating member 23 of the cap 19 and the base body 21 engage in one another via a lock 29, which engages itself after a full pump stroke at the end of the return stroke so that a next pump stroke only can then be carried out when an actuation of the cap 19 deviating from the pumping stroke movement is carried out by turning the conveying handle 11 and / or the actuating member 23.
  • the conveying handle 11 engages in the detection element 22 via an actuating drive 30 in such a way that it is rotated one adjusting step at the beginning of each conveying stroke.
  • the lock 29 has two or more evenly distributed over the circumference, provided in one piece on the cap 19 and radially inwardly projecting from a sleeve 48 locking cams 31, each in a link 32 on the outer circumference of a freely projecting sleeve 47 at the front end of the base body 21 intervene.
  • the actuating drive 30 has, on the inner circumference of the jacket 35 of the cap 19, axially web-shaped adjusting cams 33 with oblique end faces, which are evenly distributed over the circumference and to which opposing cams on the outer circumference of the front end of the detection element 22 are assigned.
  • the actuating cams 33 connect the jacket 35 in a rib-like manner and the sleeve 48 extending from the end wall of the cap 19, so that very high stability is ensured even with a thin-walled design.
  • the adjusting cams 33 lie completely outside of the grooves between the counter-cams 34.
  • the inclined surfaces of the cams run in pairs on one another, so that the detection member 22 is rotated, while the cap 19 is opposed to the base body 21 by the interlocking locking members of the lock 29 a reciprocating one during the pumping stroke and return stroke Performs rotary movement, but at the end of the return stroke takes almost the same rotational position with respect to the base body 21 as at the beginning of the pump stroke.
  • the actuating cams 33 form an actuator 43 which is integral with the handles, and the opposing cams 34 form an actuator 45 which is integral with the detection element 22.
  • the jacket 35 can be mounted relatively rotatably and rotatably on the outer circumference of the detection member 22 and the base body 21, so that only small bearing forces are transmitted to the bearing that is formed by the displaceable piston unit 7 and also carries the cap 19. After pulling off the cap 19, which is connected to the piston unit 7 via a plug-in connection, the detection element 22 or with this the base body 21 can be removed and replaced as an assembly.
  • the lock 29 and the actuator 30 are returned to the starting position by a return spring of the pump 6 provided in the discharge conveyor 3, so that no separate spring is required.
  • a display device 37 For externally recognizable display of the respective switching state of the detection device 20, a display device 37 is provided, which has a display window 38 in the rear end of the casing 35 as a breakthrough and in the starting position in the area on the outer circumference of the detection element 23 a scale 40 with symbols evenly distributed over the circumference having.
  • the scale 40 is provided immediately behind the actuator 45 at the rear end of the detection element 22 so that a symbol can be recognized by the display window 38 in each switching state.
  • the link 32 has on the outer circumference of the sleeve 47 a slot guide 49 which is open on this circumference and which, in view, is approximately ring-shaped around a link core 50 and has polygonally adjoining guide sections has, which are bounded on one side by the link core 50.
  • the locking cam 31 is located at the start of the link 51, which is followed by an approximately axial section of the link guide 49. This forms one of six angularly adjoining link sections, the locking cam 31 in the pump stroke end position lying in the transition between the second and the third link section, as can be seen from the positions indicated by dash-dotted lines in FIG. 2.
  • the locking cam 31 therefore does not return to the axial link section, but rather is laterally deflected by the link core 50.
  • the last link section opens with a transition transversely to the axial link section into the link start 51 and its flanks form locking stops 54, 55 for the locking cam 31 lying transversely to the stroke direction.
  • the locking cam 31 therefore lies immediately laterally adjacent between these locking stops 54, 55 to the start of the backdrop 51, so that axial movements of the cap 19 are positively locked in both opposite directions.
  • the cross-sectionally rectangular or square locking cam 31 is expediently arranged in a diamond shape such that it is guided or supported essentially only with corner edges in the first and fourth link sections and between the locking stops 54, 55, while it is supported in the second, third and fifth link sections can be performed substantially flat on the outer backdrop flank.
  • the locking cam 31 can be introduced or led out into the ring-shaped backdrop via a backdrop entrance 53, which is expediently located in the extension of the backdrop beginning 51 or the first backdrop section immediately adjacent to the backdrop beginning.
  • the cap 19 must be rotated by a few angular degrees in order to transfer the locking cam 31 to the start of the link 51.
  • the actuating cams 33 become in or against the direction of rotation of the detection element 22 twisted that they no longer align with the grooves between the counter cams 34, but the latter are again in the path of the control cams 33.
  • the actuating cams 33 come into engagement with the counter cams 34, while the locking cams 31 pass through the first link section, are then constantly engaged until shortly before the locking stops 54, 55 are reached so that there is a rotational connection between the cap 19 and the detection element 22 and come out of engagement again before reaching the locked position, so that the detection member 22 is held only by the friction connection 39.
  • the cap 19 with the detection member 22 executes a reciprocating rotary movement with respect to the base body 21.
  • the base body 21 can form a casing 41 which surrounds the storage vessel 4 approximately at its full height and which can extend approximately to or above the bottom of the storage vessel, so that the storage vessel 4 which is expediently made of glass is well protected against damage.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Nozzles (AREA)
  • Discharge By Other Means (AREA)

Abstract

A discharging device (1) has, for the discharge actuation (5), an element (29) which inhibits further actuation and engages automatically at the end of each actuation cycle. To cancel the inhibition, an actuation element (11, 23) must be manually turned, as a result of which control cams (33) of a discharge counter (20) are simultaneously transferred into a working position in such a way that they carry out a control step at the next stroke. <IMAGE>

Description

Die Erfindung betrifft eine Austragvorrichtung nach dem Oberbegriff des Patentanspruches 1. Sie kann für Medien beliebiger Art vorgesehen sein und ist zur Durchführung eines Austragvorganges mit einer Austrag-Betätigung versehen ist. Diese ist vorteilhaft so ausgebildet, daß sie manuell zwischen einer Ausgangsstellung und einer End- bzw. Betätigungsstellung in einem Bewegungszyklus z.B. hin- und hergehend bewegbar ist. In wenigstens einer Stellung ist die Austrag-Betätigung zweckmäßig gegen Bewegungen in Betätigungsrichtung und/oder Rückstellrichtung mit einer Sperre zumindest innerhalb bestimmter Bewegungsgrenzen festsetzbar, wobei die Sperre durch eine manuelle Betätigung wieder freizugeben bzw. auslösbar sein soll.The invention relates to a discharge device according to the preamble of claim 1. It can be provided for media of any kind and is provided with a discharge actuation for carrying out a discharge process. This is advantageously designed so that it can be moved manually between a starting position and an end or actuation position in a movement cycle, e.g. is movable back and forth. In at least one position, the discharge actuation can expediently be fixed against movements in the actuation direction and / or reset direction with a lock at least within certain movement limits, the lock being intended to be released again or releasable by manual actuation.

Diese Sperre kann z.B. als Originalitätsschutz oder zur Vermeidung unbefugter bzw. versehentlicher Benutzung durch Kinder vorgesehen werden und ist daher insbesondere dann zweckmäßig, wenn pharmazeutische oder kosmetische Medien ausgetragen werden sollen.This lock can e.g. as tamper protection or to prevent unauthorized or accidental use by children and is therefore particularly useful when pharmaceutical or cosmetic media are to be discharged.

Die EP-A-0 098 373 (vgl. Oberbegriff des Anspruches 1) zeigt einen in einer Ringnut radial auslösbar liegenden Nocken, der beim Pumphub axial gegenüber der Ringnut bewegt wird.EP-A-0 098 373 (cf. preamble of claim 1) shows a cam which is radially releasable in an annular groove and which is moved axially relative to the annular groove during the pumping stroke.

Die US-A-4 368 830 zeigt eine Austragvorrichtung mit Sperre, welche jeweils während der Betätigungsbewegung etwa bei Erreichen der Betätigungsstellung einrückt, so daß das Betätigungsglied in dieser Betätigungsstellung gesperrt ist. Nach dem Ausrücken der Sperre muß das Betätigungsglied zunächst eine weitere Bewegung bzw. einen Rückhub zur Ausgangsstellung ausführen, damit Medium ausgetragen werden kann.US-A-4 368 830 shows a discharge device with a lock which engages during the actuating movement approximately when the actuating position is reached, so that the actuating member is locked in this actuating position. After disengaging the lock, the actuator must first make another movement or a return stroke to the starting position so that medium can be discharged.

Der Erfindung liegt ferner die Aufgabe zugrunde, eine Austragvorrichtung für Medien zu schaffen, durch welche Nachteile bekannter Ausbildungen vermieden sind und die insbesondere eine hohe Sicherheit gewährleistet, daß die Sperre eingerückt wird.The invention is also based on the object of providing a discharge device for media, by means of which disadvantages of known designs are avoided and which, in particular, ensures a high level of security that the lock is engaged.

Zur Lösung sind die Merkmale des Patentanspruches 1 vorgesehen. Es ist eine Sperre in Abhängigkeit von mindestens einer Betätigungsbewegung selbsteinrückend ausgebildet. Dadurch kann sie z.B. nach einem der mehreren Betätigungszyklen von selbst in Sperrstellung überführt werden, so daß zur Durchführung eines nachfolgenden Betätigungszyklus willkürlich bzw. bewußt eine Auslösung vorgenommen werden muß. Die Sperrung kann in Ausgangsstellung, Betätigungsstellung und/oder einer Zwischenstellung erfolgen und sie kann sowohl gegen Betätigung als auch gegen Rückstellung oder nur gegen eine dieser Bewegungen wirken, wobei mehrere Sperrstellungen gleicher oder unterschiedlicher Sperrwirkung möglich sind.To solve the features of claim 1 are provided. A lock is designed to be self-engaging depending on at least one actuation movement. This means that it can e.g. after one of the several actuation cycles are automatically transferred into the locked position, so that a triggering must be carried out arbitrarily or deliberately in order to carry out a subsequent actuation cycle. The blocking can take place in the starting position, actuating position and / or an intermediate position and it can act both against actuation and against resetting or only against one of these movements, several blocking positions of the same or different blocking effect being possible.

Im Gegensatz zu einer kraftabhängig überwindbaren Sperrung z.B. für aufeinanderfolgende Teilhübe eines Gesamthubes der Austrag-Betätigung arbeitet die Sperre zweckmäßig hinsichtlich der zugehörigen Betätigungsrichtung der Austrag-Betätigung formschlüssig, so daß die Sperrung nur durch eine von der Betätigungsbewegung für den Austrag abweichende Bewegung aufzuheben ist. Bei einer demgegenüber gleichgerichteten Auslösebewegung wäre mindestens eine Betätigungsbewegung nur für die Auslösung und erst eine darauffolgende Betätigung zur Durchführung des Austrages erforderlich.In contrast to a lock that can be overcome depending on the force, for example for successive partial strokes of a total stroke of the discharge actuation, the lock works expediently with respect to the associated actuation direction of the discharge actuation, so that the lock can only be released by a movement deviating from the actuation movement for the discharge. In the case of a trigger movement that is in the same direction at least one actuation movement would only be necessary for the triggering and only a subsequent actuation to carry out the discharge.

In jedem Fall ist es vorteilhaft, wenn nicht gesonderte Handhaben, sondern dieselbe Handhabe, sowohl zur Betätigung des Austrages durch Öffnen eines Ventiles, Betätigen einer Pipette, einer Pumpe o.dgl., als auch zur Entsperrung vorgesehen ist. Die Handhabe kann dabei mit einem Umfang und einer Stirnseite gesonderte Betätigungsglieder für den Austrag und die Entsperrung bilden und sowohl annähernd linear axial als auch drehbar gelagert sein.In any case, it is advantageous if the same handle is provided, not for separate handling, both for actuating the discharge by opening a valve, actuating a pipette, a pump or the like, and for unlocking. The handle can form separate actuators for the discharge and unlocking with a circumference and an end face and can be mounted both axially and rotatably approximately linearly.

Erfindungsgemäß kann des weiteren eine auslösbare Abziehsicherung für einen Austrag- und Betätigungskopf der Austragvorrichtung vorgesehen sein, so daß dieser zwar abnehmbar, aber zum Beispiel in einem Aufbewahrungszustand der Austragvorrichtung gegen versehentliches Abnehmen formschlüssig gesichert ist. Diese Abziehsicherung ist bevorzugt durch eine der genannten Sperren bzw. eine Sperre gebildet, die die genannten Merkmale aufweist.According to the invention, a releasable pull-off protection can also be provided for a discharge and actuating head of the discharge device, so that it can be removed, but is positively secured against inadvertent removal, for example, in a storage state of the discharge device. This pull-off protection is preferably formed by one of the locks or a lock that has the features mentioned.

Um beliebige, insbesondere hinsichtlich der Anwendung der Austragvorrichtung relevante Daten erfassen, speichern und/oder anzeigen zu können, ist es zweckmäßig, eine Erfassungseinrichtung vorzusehen, die vorteilhaft unmittelbar an der Austragvorrichtung angeordnet und nicht durch eine räumlich gesonderte Einrichtung gebildet ist. Solche Daten können zum Beispiel die Zahl der erfolgten Anwendungen, der nächstfolgende Anwendungstermin und/oder andere Daten sein, die über eine oder mehrere synchron oder gesondert geschaltete Anzeigen kenntlich gemacht werden können.In order to be able to record, store and / or display any data which is relevant in particular with regard to the application of the discharge device, it is expedient to provide a detection device which is advantageously arranged directly on the discharge device and is not formed by a spatially separate device. Such data can be, for example, the number of applications that have taken place, the next application date and / or other data that can be identified via one or more synchronously or separately switched displays.

Zweckmäßig sind Bewegungen mindestens einer Erfassungseinrichtung mit Zustandsänderungen der Sperre synchronisiert, wobei zum Beispiel eine drehende Lageänderung der Anzeige mit bzw. ohne Änderung des Anzeigesymboles und/oder eine Überführung der Erfassungseinrichtung in eine Bereitschaftsstellung derart vorgesehen sein kann, daß die Erfassungseinrichtung beim darauffolgenden Austragvorgang weitergeschaltet wird. Dadurch kann ein Stelltrieb zur Betätigung der Erfassungseinrichtung sehr einfach ausgebildet sein und lediglich schräge Nockenflächen aufweisen, die eine Hubbewegung in eine Drehbewegung umsetzen.Movements of at least one detection device are expediently synchronized with changes in the state of the lock, for example a rotating change of position of the display with or without changing the display symbol and / or a transfer of the detection device into a standby position can be provided such that the detection device is switched on during the subsequent discharge process. As a result, an actuating drive for actuating the detection device can be designed in a very simple manner and only have inclined cam surfaces which convert a stroke movement into a rotary movement.

Ein Trag- bzw. Grundkörper, welcher die zugehörigen Sperrglieder der Sperre und/oder mindestens ein Erfassungsglied der Erfassungseinrichtung aufnimmt, kann durch einen Bauteil gebildet sein, der gesondert von einem Grundkörper des Austragförderers, zum Beispiel an einem Speichergefäß für das Medium zu befestigen ist. Dadurch kann ein und dieselbe, bereits fertig vormontierte Austrageinheit wahlweise nachträglich mit einer der genannten Ausbildungen versehen bzw. kann diese Einrichtung gegen eine andersartige ausgewechselt werden. Je nach Anwendungsfall können dadurch unterschiedliche Skalen, unterschiedliche Stelltriebe o.dgl. vorgesehen werden. Bei einer sehr einfachen Ausführungsform sind Nocken der Sperre und/oder der Erfassungseinrichtung bzw. ein Anzeiger, wie Anzeigefenster, an dem Austragkopf angeordnet und einteilig mit diesem ausgebildet. Die Sperre kann gleichzeitig eine Drehsicherung gegen diejenigen Kräfte bilden, die beim Weiterschalten der Erfassungseinrichtung auftreten.A support or base body, which receives the associated locking elements of the lock and / or at least one detection element of the detection device, can be formed by a component which is to be fastened separately from a base body of the discharge conveyor, for example to a storage vessel for the medium. As a result, one and the same, already pre-assembled discharge unit can optionally be retrofitted with one of the mentioned designs, or this device can be exchanged for a different type. Depending on the application, different scales, different actuators or the like can be used. be provided. In a very simple embodiment, cams of the lock and / or the detection device or an indicator, such as a display window, are arranged on the discharge head and are formed in one piece therewith. The lock can simultaneously form a rotation lock against those forces that occur when the detection device is switched on.

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

Fig. 1
eine erfindungsgemäße Austragvorrichtung im Axialschnitt,
Fig. 2
einen Ausschnitt der Fig. 1 in einer Abwicklung und vergrößerter Darstellung und
Fig. 3
eine weitere Abwicklung.
These and further features emerge from the description and the drawings in addition to the claims, the individual features being realized individually or in groups in the form of sub-combinations in one embodiment of the invention and in other fields and can represent advantageous embodiments. An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show:
Fig. 1
a discharge device according to the invention in axial section,
Fig. 2
a section of Fig. 1 in a development and enlarged view and
Fig. 3
another settlement.

Die Austragvorrichtung 1 weist eine als in sich geschlossene Montagebaugruppe ausgebildete Austrageinheit 2 mit einem Austragförderer 3 und einem Speichergefäß 4 auf, die durch eine Austrag-Betätigung 5 manuell zu betätigen sind. Hierbei wird die Kolbeneinheit 7 einer zum größten Teil in das Speichergefäß 4 eingreifenden Pumpe 6 betätigt, deren Pumpenkammer einen ventilgesteuerten Einlaß 8 und einen ventilgesteuerten Auslaß 9 aufweist. Zur Betätigung ist ein Kolben- bzw. Betätigungsstößel 10 vorgesehen, der mit einer Förderhandhabe in Form eines Betätigungsgliedes 11 in Form einer ihn umgebenden Druckfläche verbunden und über eine Steckverbindung an dem Kolbenstößel der Kolbeneinheit 7 angeordnet ist. Der Betätigungsstößel 10 ist von einem an den Auslaß 9 angeschlossenen Auslaßkanal 13 durchsetzt, von einem einteilig mit ihm ausgebildeten und etwa in der Pumpenachse liegenden Austragstutzen 12 umgeben und weist im Bereich seiner Endfläche die ins Freie führende Auslaßöffnung der Austrageinheit 2 auf. Das Zylindergehäuse bildet mit einem Zylinderdeckel einen Grundkörper 14, mit welchem der Austragförderer 3 durch ein Befestigungsglied 15, zum Beispiel einen kappenförmigen Gefäßflansch 16 umgreifenden Krimpring an dem Gefäßhals 17 befestigt ist. Zwischen diesem Gefäßflansch 16 und dem Gefäßbauch 18 bildet der Gefäßhals 17 am Außenumfang eine Ringnut, die an einer Flanke von dem Befestigungsglied 15 begrenzt sein kann. Der aus dem Speichergefäß 2 vorstehende Teil des Grundkörpers und das Befestigungsglied 15 werden von einer Kappe 19 übergriffen, welche mit ihrer Stirnseite die Förderhandhabe 11 bildet.The discharge device 1 has a discharge unit 2 designed as a self-contained assembly assembly with a discharge conveyor 3 and a storage vessel 4, which can be operated manually by a discharge actuation 5. Here, the piston unit 7 of a pump 6 engaging for the most part in the storage vessel 4 is actuated, the pump chamber of which has a valve-controlled inlet 8 and a valve-controlled outlet 9. For actuation, a piston or actuating tappet 10 is provided, which is connected to a conveyor handle in the form of an actuating member 11 in the form of a pressure surface surrounding it and is arranged on the plunger tappet of the piston unit 7 via a plug connection. The actuating plunger 10 is penetrated by an outlet duct 13 connected to the outlet 9, surrounded by a discharge nozzle 12 formed in one piece with it and lying approximately in the pump axis, and has the outlet opening of the discharge unit 2 leading to the outside in the region of its end face. The cylinder housing forms a base body 14 with a cylinder cover, with which the discharge conveyor 3 is fastened to the vessel neck 17 by means of a fastening member 15, for example a crimp ring encompassing a cap-shaped vessel flange 16. Between this vessel flange 16 and the vessel belly 18, the vessel neck 17 forms an annular groove on the outer circumference, which can be delimited on one side by the fastening member 15. The one protruding from the storage vessel 2 Part of the base body and the fastening member 15 are overlapped by a cap 19, which forms the conveying handle 11 with its end face.

Zur zwangsläufigen Erfassung jedes Betätigungshubes ist eine Erfassungseinrichtung 20 vorgesehen, von der ein hülsenförmiger Grundkörper 21 auf die Austrageinheit 2 aufgesetzt ist, welcher am Außenumfang ein hülsenförmiges Erfassungsglied 22 drehbar, jedoch axial gesichert, trägt. Das Erfassungsglied 22 ist mit dem durch die Förderhandhabe 11 gebildeten Betätigungsglied um gleiche Winkelschritte um die Mittelachse der Austragvorrichtung 1 drehbar. Der Grundkörper 21 ist axial vom vorderen Ende auf die Austrageinheit 2 aufgesteckt und durch Anschlag bzw. eine Schnappverbindung 24 auch gegen Drehen so gesichert, daß er nur aufgrund einer relativ großen Kraft gegenüber der Austrageinheit 2 verdreht werden kann. Die Schnappverbindung weist am Innenumfang des Grundkörpers 21 einen Ringwulst 25 auf, der auch in einzelne Schnappnocken unterteilt sein kann und in die zwischen dem Gefäßflansch 16 und dem Gefäßbauch 18 durch den Gefäßhals 17 gebildete Ringnut im wesentlichen spielfrei eingreift.For the inevitable detection of each actuation stroke, a detection device 20 is provided, from which a sleeve-shaped base body 21 is placed on the discharge unit 2, which carries a sleeve-shaped detection member 22 on the outer circumference, which is rotatable but axially secured. The detection element 22 can be rotated by the same angular steps about the central axis of the discharge device 1 with the actuating element formed by the conveying handle 11. The base body 21 is pushed axially from the front end onto the discharge unit 2 and is also secured against rotation by a stop or a snap connection 24 in such a way that it can only be rotated relative to the discharge unit 2 due to a relatively large force. The snap connection has on the inner circumference of the base body 21 an annular bead 25 which can also be divided into individual snap cams and which engages in the annular groove formed between the vessel flange 16 and the vessel belly 18 by the vessel neck 17 essentially without play.

Auf einem im Außendurchmesser reduzierten Abschnitt des Grundkörpers 21 ist das Erfassungsglied 22 drehbar gelagert und mit einer Schnappverbindung 26 axial gesichert, die einen in eine Ringnut eingreifenden Ringwulst 27 aufweist, so daß das Erfassungsglied 22 ausgewechselt werden kann. Das die Befestigung 15 umgebende Erfassungsglied 22 bildet eine im wesentlichen kontinuierliche und lückenlose Fortsetzung des Außenumfanges des Grundkörpers 21. Durch seine im wesentlichen ganzflächige Anlage am Außenumfang des zugehörigen Abschnittes des Mantels 28 des Grundkörpers 21 ist das Erfassungsglied 22 über eine Reibverbindung 39 mit einer gewissen Schwergängigkeit gelagert.The detection element 22 is rotatably mounted on a section of the base body 21 with an outer diameter and is axially secured with a snap connection 26 which has an annular bead 27 engaging in an annular groove, so that the detection element 22 can be replaced. The detection member 22 surrounding the attachment 15 forms an essentially continuous and gapless continuation of the outer circumference of the base body 21. Due to its essentially full-surface contact with the outer circumference of the associated section of the casing 28 of the base body 21, the detection member 22 is frictionally 39 with a certain stiffness stored.

Unmittelbar vor der vorderen Stirnfläche des Erfassungsgliedes 22 greifen die Förderhandhabe 11 und das Betätigungsglied 23 der Kappe 19 sowie der Grundkörper 21 über eine Sperre 29 ineinander ein, welche nach Durchführung eines vollen Pumphubes am Ende des Rückhubes so von selbst einrückt, daß ein nächster Pumphub nur dann durchgeführt werden kann, wenn eine von der Pumphubbewegung abweichende Betätigung der Kappe 19 durch Drehen an der Förderhandhabe 11 und/oder am Betätigungsglied 23 vorgenommen wird.Immediately in front of the front end face of the detection member 22, the conveying handle 11 and the actuating member 23 of the cap 19 and the base body 21 engage in one another via a lock 29, which engages itself after a full pump stroke at the end of the return stroke so that a next pump stroke only can then be carried out when an actuation of the cap 19 deviating from the pumping stroke movement is carried out by turning the conveying handle 11 and / or the actuating member 23.

Axial hinter der Sperre greift die Förderhandhabe 11 über einen Stelltrieb 30 in das Erfassungsglied 22 so ein, daß dieses am Beginn jedes Förderhubes um einen Stellschritt weitergedreht wird. Die Sperre 29 weist zwei oder mehr gleichmäßig über den Umfang verteilte, einteilig an der Kappe 19 vorgesehene und radial nach innen von einer Muffe 48 abstehende Sperrnocken 31 auf, die jeweils in eine Kulisse 32 am Außenumfang einer frei vorstehenden Muffe 47 am vorderen Ende des Grundkörpers 21 eingreifen. Der Stelltrieb 30 weist am Innenumfang des Mantels 35 der Kappe 19 über den Umfang gleichmäßig verteilte, axialstegförmige Stellnocken 33 mit schrägen Endflächen auf, denen Gegennocken am Außenumfang des vorderen Endes des Erfassungsgliedes 22 zugeordnet sind. Die Stellnocken 33 verbinden rippenartig den Mantel 35 und die von der Stirnwand der Kappe 19 ausgehende Muffe 48, so daß auch bei dünnwandiger Ausbildung eine sehr hohe Stabilität gewährleistet ist.Axially behind the lock, the conveying handle 11 engages in the detection element 22 via an actuating drive 30 in such a way that it is rotated one adjusting step at the beginning of each conveying stroke. The lock 29 has two or more evenly distributed over the circumference, provided in one piece on the cap 19 and radially inwardly projecting from a sleeve 48 locking cams 31, each in a link 32 on the outer circumference of a freely projecting sleeve 47 at the front end of the base body 21 intervene. The actuating drive 30 has, on the inner circumference of the jacket 35 of the cap 19, axially web-shaped adjusting cams 33 with oblique end faces, which are evenly distributed over the circumference and to which opposing cams on the outer circumference of the front end of the detection element 22 are assigned. The actuating cams 33 connect the jacket 35 in a rib-like manner and the sleeve 48 extending from the end wall of the cap 19, so that very high stability is ensured even with a thin-walled design.

In Ausgangsstellung liegen die Stellnocken 33 vollständig außerhalb der Nuten zwischen den Gegennocken 34. Während der Hubbewegung laufen die Schrägflächen der Nocken paarweise aufeinander auf, so daß das Erfassungsglied 22 verdreht wird, während die Kappe 19 durch die ineinandergreifenden Sperrglieder der Sperre 29 gegenüber dem Grundkörper 21 beim Pumphub und Rückhub zwar eine hin- und hergehende Drehbewegung ausführt, am Ende des Rückhubes jedoch nahezu wieder die gleiche Drehstellung gegenüber dem Grundkörper 21 einnimmt wie am Anfang des Pumphubes. Die Stellnocken 33 bilden ein mit den Handhaben einteiliges Stellglied 43 und die Gegennocken 34 ein mit dem Erfassungsglied 22 einteiliges Stellglied 45.In the starting position, the adjusting cams 33 lie completely outside of the grooves between the counter-cams 34. During the lifting movement, the inclined surfaces of the cams run in pairs on one another, so that the detection member 22 is rotated, while the cap 19 is opposed to the base body 21 by the interlocking locking members of the lock 29 a reciprocating one during the pumping stroke and return stroke Performs rotary movement, but at the end of the return stroke takes almost the same rotational position with respect to the base body 21 as at the beginning of the pump stroke. The actuating cams 33 form an actuator 43 which is integral with the handles, and the opposing cams 34 form an actuator 45 which is integral with the detection element 22.

Der Mantel 35 kann verhältnismäßig eng angepaßt auf dem Außenumfang des Erfassungsgliedes 22 und des Grundkörpers 21 verschiebbar und drehbar gelagert sein, so daß nur geringe Lagerkräfte auf diejenige Lagerung übertragen werden, die durch die verschiebbare Kolbeneinheit 7 gebildet ist und ebenfalls die Kappe 19 trägt. Nach Abziehen der über eine Steckverbindung mit der Kolbeneinheit 7 verbundenen Kappe 19 kann das Erfassungsglied 22 oder mit diesem der Grundkörper 21 als Baugruppe abgezogen und ausgewechselt werden. Die Rückführung der Sperre 29 und des Stelltriebes 30 in die Ausgangsstellung erfolgt durch eine in dem Austragförderer 3 vorgesehene Rückstellfeder der Pumpe 6, so daß keine gesonderte Feder erforderlich ist.The jacket 35 can be mounted relatively rotatably and rotatably on the outer circumference of the detection member 22 and the base body 21, so that only small bearing forces are transmitted to the bearing that is formed by the displaceable piston unit 7 and also carries the cap 19. After pulling off the cap 19, which is connected to the piston unit 7 via a plug-in connection, the detection element 22 or with this the base body 21 can be removed and replaced as an assembly. The lock 29 and the actuator 30 are returned to the starting position by a return spring of the pump 6 provided in the discharge conveyor 3, so that no separate spring is required.

Zur von außen erkennbaren Anzeige des jeweiligen Schaltzustandes der Erfassungseinrichtung 20 ist eine Anzeigeeinrichtung 37 vorgesehen, die im hinteren Ende des Mantels 35 als Durchbruch ein Anzeigefenster 38 und in Ausgangsstellung in dessen Bereich am Außenumfang des Erfassungsgliedes 23 eine Skala 40 mit über den Umfang gleichmäßig verteilten Symbolen aufweist. Die Skala 40 ist unmittelbar hinter dem Stellglied 45 am hinteren Ende des Erfassungsgliedes 22 so vorgesehen, daß in jedem Schaltzustand durch das Anzeigefenster 38 ein Symbol erkennbar ist.For externally recognizable display of the respective switching state of the detection device 20, a display device 37 is provided, which has a display window 38 in the rear end of the casing 35 as a breakthrough and in the starting position in the area on the outer circumference of the detection element 23 a scale 40 with symbols evenly distributed over the circumference having. The scale 40 is provided immediately behind the actuator 45 at the rear end of the detection element 22 so that a symbol can be recognized by the display window 38 in each switching state.

Die Kulisse 32 weist am Außenumfang der Muffe 47 eine an diesem Umfang nutförmig offene Kulissenführung 49 auf, die in Ansicht annähernd ringförmig um einen Kulissenkern 50 geschlossen ist und polygonal aneinanderschließende Führungsabschnitte hat, die an einer Flankenseite von dem Kulissenkern 50 begrenzt sind. In Ausgangsstellung steht der Sperrnocken 31 am Kulissenanfang 51, an welchen sich ein etwa axialer Abschnitt der Kulissenführung 49 anschließt. Dieser bildet einen von sechs winkelförmig aneinanderschließenden Kulissenabschnitten, wobei der Sperrnocken 31 in Pumphub-Endstellung im Übergang zwischen dem zweiten und dem dritten Kulissenabschnitt liegt, wie das aus den strichpunktiert angedeuteten Stellungen in Fig. 2 erkennbar ist.The link 32 has on the outer circumference of the sleeve 47 a slot guide 49 which is open on this circumference and which, in view, is approximately ring-shaped around a link core 50 and has polygonally adjoining guide sections has, which are bounded on one side by the link core 50. In the starting position, the locking cam 31 is located at the start of the link 51, which is followed by an approximately axial section of the link guide 49. This forms one of six angularly adjoining link sections, the locking cam 31 in the pump stroke end position lying in the transition between the second and the third link section, as can be seen from the positions indicated by dash-dotted lines in FIG. 2.

Beim Rückhub gelangt der Sperrnocken 31 daher nicht zurück in den axialen Kulissenabschnitt, sondern er wird durch den Kulissenkern 50 seitlich ausgelenkt. Der letzte Kulissenabschnitt mündet mit einem Übergang quer zum axialen Kulissenabschnitt in den Kulissenanfang 51 und seine Flanken bilden quer zur Hubrichtung liegende Sperranschläge 54, 55 für den Sperrnocken 31. Am Ende des Rückhubes liegt der Sperrnocken 31 daher zwischen diesen Sperranschlägen 54, 55 unmittelbar seitlich benachbart zum Kulissenanfang 51, so daß Axialbewegungen der Kappe 19 in beiden entgegengesetzten Richtungen formschlüssig gesperrt sind.During the return stroke, the locking cam 31 therefore does not return to the axial link section, but rather is laterally deflected by the link core 50. The last link section opens with a transition transversely to the axial link section into the link start 51 and its flanks form locking stops 54, 55 for the locking cam 31 lying transversely to the stroke direction. At the end of the return stroke, the locking cam 31 therefore lies immediately laterally adjacent between these locking stops 54, 55 to the start of the backdrop 51, so that axial movements of the cap 19 are positively locked in both opposite directions.

Zweckmäßig ist der im Querschnitt etwa rechteckige bzw. quadratische Sperrnocken 31 rautenförmig so angeordnet, daß er im ersten und vierten Kulissenabschnitt sowie zwischen den Sperranschlägen 54, 55 im wesentlichen nur mit Eckkanten geführt bzw. abgestützt ist, während er im zweiten, dritten und fünften Kulissenabschnitt an der äußeren Kulissenflanke im wesentlichen flächig geführt sein kann. Der Sperrnocken 31 kann in die ringförmige Kulisse über einen Kulisseneingang 53 eingeführt bzw. herausgeführt werden, der zweckmäßig in Verlängerung des Kulissenanfanges 51 bzw. des ersten Kulissenabschnittes unmittelbar benachbart zum Kulissenanfang liegt.The cross-sectionally rectangular or square locking cam 31 is expediently arranged in a diamond shape such that it is guided or supported essentially only with corner edges in the first and fourth link sections and between the locking stops 54, 55, while it is supported in the second, third and fifth link sections can be performed substantially flat on the outer backdrop flank. The locking cam 31 can be introduced or led out into the ring-shaped backdrop via a backdrop entrance 53, which is expediently located in the extension of the backdrop beginning 51 or the first backdrop section immediately adjacent to the backdrop beginning.

Befindet sich der Sperrnocken 31 zwischen den Sperranschlägen 54, 55, so bedarf es einer Drehbewegung der Kappe 19 von wenigen Winkelgraden zur Überführung des Sperrnockens 31 an den Kulissenanfang 51. Mit derselben Drehbewegung werden auch die Stellnocken 33 so in oder entgegen der Schaltdrehrichtung des Erfassungsgliedes 22 verdreht, daß sie nicht mehr mit den Nuten zwischen den Gegennocken 34 fluchten, sondern letztere wieder im Laufweg der Stellnocken 33 liegen. Die Stellnocken 33 kommen mit den Gegennocken 34 in Eingriff, während der Sperrnocken 31 den ersten Kulissenabschnitt durchläuft, sind dann bis kurz vor Erreichen der Sperranschläge 54, 55 ständig so in Eingriff, daß eine drehschlüssige Verbindung zwischen der Kappe 19 und dem Erfassungsglied 22 gegeben ist und gelangen vor Erreichen der Sperrlage wieder außer Eingriff, so daß das Erfassungsglied 22 nur noch durch die Reibverbindung 39 gehalten ist. Während des selbsttätig gesteuerten Durchlaufes des Sperrnockens 31 durch die zweiten bis fünften Kulissenabschnitte führt somit die Kappe 19 mit dem Erfassungsglied 22 eine hin- und hergehende Drehbewegung gegenüber dem Grundkörper 21 aus.If the locking cam 31 is located between the locking stops 54, 55, the cap 19 must be rotated by a few angular degrees in order to transfer the locking cam 31 to the start of the link 51. With the same rotational movement, the actuating cams 33 become in or against the direction of rotation of the detection element 22 twisted that they no longer align with the grooves between the counter cams 34, but the latter are again in the path of the control cams 33. The actuating cams 33 come into engagement with the counter cams 34, while the locking cams 31 pass through the first link section, are then constantly engaged until shortly before the locking stops 54, 55 are reached so that there is a rotational connection between the cap 19 and the detection element 22 and come out of engagement again before reaching the locked position, so that the detection member 22 is held only by the friction connection 39. During the automatically controlled passage of the locking cam 31 through the second to fifth link sections, the cap 19 with the detection member 22 executes a reciprocating rotary movement with respect to the base body 21.

Der Grundkörper 21 kann eine das Speichergefäß 4 annähernd auf ganzer Höhe umgebende Hülle 41 bilden, die annähernd bis zum bzw. über den Boden des Speichergefäßes hinausreichen kann, so daß das zweckmäßig aus Glas bestehende Speichergefäß 4 gegen Beschädigungen gut geschützt ist.The base body 21 can form a casing 41 which surrounds the storage vessel 4 approximately at its full height and which can extend approximately to or above the bottom of the storage vessel, so that the storage vessel 4 which is expediently made of glass is well protected against damage.

Claims (15)

  1. Discharge apparatus (1) for media with a discharge unit (2) containing a medium reservoir (4) and a discharge actuating means (5), which has a discharge head actuatable with at least one actuator (11) of a handle (11, 23) with respect to the discharge unit (2) in a movement cycle from a starting position, via a discharge movement to an actuating position and at least one catch system (29) substantially fixing the discharge head in at least one locking position against at least one movement direction, the starting position is provided as the locking position, the handle (11, 23) is provided with an actuator (23) for the catch system (29) and the catch system (29) has at least one locking cam (31) of a removable preventer guided in a guide (49) and which secures the discharge head in the locking position against the removal of the discharge unit (2), characterized in that the locking cam (31) during the discharge movement is guided in the guide (49) with which is associated a guide inlet (53) for releasing the removal preventer by rotating and drawing out the locking cam (31).
  2. Discharge apparatus according to claim 1, characterized in that the discharge head can be transferred from a starting position freeing the discharge actuator (5), via the discharge movement back into a starting position following the latter, that in particular a catch system (29) fixes the discharge actuator (5) substantially during each actuation by automatic engagement and that preferably the starting position following a discharge movement is provided as a locking position, in which the catch system (29) releasably fixes the discharge head against the discharge movement emanating from this starting position.
  3. Discharge apparatus according to claim 1, characterized in that at least one catch system (29) is constructed in self-engaging manner as a function of substantially each movement cycle, that in particular a catch system (29) at the earliest in the actuating position and at the latest at the end of a further movement formed by a return stroke is constructed in self-engaging manner in the starting position and that preferably a catch system (29) forms a positive locking against actuating a discharge.
  4. Discharge apparatus according to claim 1 or 2, characterized in that a catch system (29) is manually releasable by means of a release movement differently directed compared with the actuating movement, that preferably the discharge head is roughly linearly movable with at least one actuator (11, 23) for performing the actuating movement and that in particular at least one actuator (11, 23) is movable in rotary manner for performing the release movement.
  5. Discharge apparatus according to one of the preceding claims, characterized in that the guide (49) has a slot-like construction, that in particular the guide (49) has angularly interconnecting guide portions and that the guide entrance (53) is located in the extension of a guide start (51) or the first guide portion and that preferably the first guide portion is axially connected to the guide start (51).
  6. Discharge apparatus according to one of the preceding claims, characterized in that at least one locking cam (31) is constructed as a radially projecting cam, that in particular at least one locking cam (31) projects from a sleeve (48) and that preferably the sleeve (48) emanates from an end wall of a cap (19) of the discharge head, the cap (19) engages over the discharge head (2) and the end side and circumference of the cap (19) having a discharge connection (12) form the handle (11, 23).
  7. Discharge apparatus according to one of the preceding claims, characterized in that a catch system (29) is constructed as a link catch, which preferably has at least one link guide (49) for a locking cam (31) located in the link centre (50) and/or bounded by a stop member (54, 55) on one link periphery and emanating from a link start (51) and returning to the same and which is in particular bounded immediately adjacent to the link start (51) open to the guide entrance (53) by opposite barrier surfaces, which form a transition (52) to the link start.
  8. Discharge apparatus according to one of the preceding claims, characterized in that at least one locking member of a catch system (29) is provided on a body (21) separate from a discharge unit (2) comprising the discharging means (3), fastening member (15) and medium reservoir (4) and which is preferably fixed by means of a plug-in and snap connection (24) to the discharge unit (2) and that in particular the catch system (29) is located within a jacket (35) of the actuator (11, 23).
  9. Discharge apparatus according to one of the preceding claims, characterized in that a catch system (29) is constructed in positively locking manner, that in particular the discharge head has an actuating push rod (10) surrounded by the handle (11, 23) and the discharge connection (12) and having a discharge opening in the vicinity of its end face and that preferably the discharge head with at least one plug connection is located on a piston rod of a piston unit (7).
  10. Discharge apparatus according to one of the preceding claims, characterized in that at least one determining device (20) is provided and that a determining device (20) is in particular constructed as a counting device for the discharge processes, which is controllable by means of an actuator (11) and preferably forcibly guided with the discharge actuating means (5).
  11. Discharge apparatus according to one of the preceding claims, characterized in that a determining device (20) is provided and is controlled by means of the same actuator (11) as a catch system (29), that in particular at least one control movement of a catch system (29) forms a control movement of a determining device (20) and that preferably the release of the catch system (29) forms an engagement of a servodrive (30) of the determining device (20).
  12. Discharge apparatus according to claim 7 or 8, characterized in that a servodrive (30) of a determining device (20) has on an adjusting member (43) at least one adjusting cam (33) for engagement in at least one countercam (34) of a determining member (22), that the adjusting member (43) is in particular directly formed by the actuator (11, 23) and that preferably the adjusting cam (33) is transferable into a starting position with the release movement of a catch system (29) at right angles to its adjusting movement and in which the countercam (34) is in the adjusting direction in the movement path thereof.
  13. Discharge apparatus according to one of the claims 7 to 9, characterized in that an adjusting member (43) of a servodrive (30) of a determining device (20) is secured substantially against rotation in at least one position, that the adjusting member (43) is prevented from rotation particularly with a catch system (29) and that preferably the locking members of the catch system (29) are substantially uninterruptedly in guidance engagement with one another at least during the engagement of the adjusting cam (33) of the determining device (20).
  14. Discharge apparatus according to one of the claims 7 to 10, characterized in that a catch system (29) and a servodrive (30) of a determining device (20) are provided in axially succeeding manner, that in particular a catch system (29) and a servodrive (30) of a determining device (20) are provided radially directly adjacent to one another and that preferably a catch system (29) and a servodrive (30) are provided on the inner circumference of a cap (19).
  15. Discharge apparatus according to one of the claims 7 to 11, characterized in that a determining member (22) of the determining device (20) is mounted on the body (21) of the catch system (29), that in particular the determining member (22) is mounted in rotary manner and that preferably the determining member (22) forms with said body (21) a preassembled subassembly.
EP91113421A 1990-08-31 1991-08-09 Device for discharging a fluid Expired - Lifetime EP0472985B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4027672A DE4027672A1 (en) 1990-08-31 1990-08-31 DISCHARGE DEVICE FOR MEDIA
DE4027672 1990-08-31

Publications (3)

Publication Number Publication Date
EP0472985A2 EP0472985A2 (en) 1992-03-04
EP0472985A3 EP0472985A3 (en) 1992-07-08
EP0472985B1 true EP0472985B1 (en) 1996-10-02

Family

ID=6413358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113421A Expired - Lifetime EP0472985B1 (en) 1990-08-31 1991-08-09 Device for discharging a fluid

Country Status (6)

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US (1) US5335823A (en)
EP (1) EP0472985B1 (en)
JP (1) JP3300390B2 (en)
AT (1) ATE143616T1 (en)
DE (2) DE4027672A1 (en)
ES (1) ES2092532T3 (en)

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Also Published As

Publication number Publication date
JPH0585559A (en) 1993-04-06
EP0472985A2 (en) 1992-03-04
EP0472985A3 (en) 1992-07-08
ATE143616T1 (en) 1996-10-15
JP3300390B2 (en) 2002-07-08
ES2092532T3 (en) 1996-12-01
DE59108243D1 (en) 1996-11-07
DE4027672A1 (en) 1992-03-05
US5335823A (en) 1994-08-09

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