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EP1295644A1 - Dosing device with a reservoir and a pump - Google Patents

Dosing device with a reservoir and a pump Download PDF

Info

Publication number
EP1295644A1
EP1295644A1 EP02008876A EP02008876A EP1295644A1 EP 1295644 A1 EP1295644 A1 EP 1295644A1 EP 02008876 A EP02008876 A EP 02008876A EP 02008876 A EP02008876 A EP 02008876A EP 1295644 A1 EP1295644 A1 EP 1295644A1
Authority
EP
European Patent Office
Prior art keywords
dosing device
pump
media
media store
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02008876A
Other languages
German (de)
French (fr)
Other versions
EP1295644B1 (en
Inventor
Pierre Mbonyumuhire
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7701333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1295644(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Priority to BRPI0212718-0A priority Critical patent/BR0212718B1/en
Priority to US10/490,529 priority patent/US20050127107A1/en
Priority to PL367351A priority patent/PL201051B1/en
Priority to CA002461006A priority patent/CA2461006C/en
Priority to CNB028231538A priority patent/CN1304121C/en
Priority to JP2003530431A priority patent/JP2005503300A/en
Priority to PCT/EP2002/010420 priority patent/WO2003026804A1/en
Priority to ARP020103530A priority patent/AR036557A1/en
Publication of EP1295644A1 publication Critical patent/EP1295644A1/en
Publication of EP1295644B1 publication Critical patent/EP1295644B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00444Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means with provision for filtering or cleaning the air flow drawn into the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/02Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1001Piston pumps
    • B05B11/1016Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1052Actuation means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1061Pump priming means
    • B05B11/1063Air exhausted from the pump chamber being discharged into the container during priming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1066Pump inlet valves
    • B05B11/107Gate valves; Sliding valves

Definitions

  • the invention relates to a metering device with a media store as well as with a pump device for dosing and dispensing an in the media storage medium, as well as with the media storage assigned pressure compensation means.
  • Such a metering device is known from DE 33 39 180 C2.
  • a drag piston is assigned to the media reservoir, which depends on the volume reduction of the medium in the Media storage within the cylindrical media storage by the standing vacuum is moved translationally.
  • the object of the invention is a metering device of the aforementioned Art to create one with simple and reliable means Allows pressure equalization.
  • the media storage with pressure-sensitive, flexible walls is provided.
  • the media storage through flexible film walls one or multilayer film limited.
  • the flexible walls allow a pressure and volume equalization by the discharge of the medium the walls change depending on the negative pressure that arises contract accordingly.
  • film material gas and / or liquid-tight plastic films used which are preferably metal-coated on the inside.
  • Particularly suitable are aluminum-coated foils.
  • the object of the invention is also achieved in that the Media storage at least one pressure compensation opening open to an atmosphere is assigned, which tapers towards the atmosphere Nozzle shape with a minimum diameter of 0.1mm to 0.3mm.
  • This enables pressure equalization.
  • the little one Guaranteed opening diameter of the pressure equalization opening the necessary pressure equalization option.
  • the pressure equalization opening in a sealing cover is advantageous of the media storage integrated.
  • the Pressure equalization opening eccentric to a central longitudinal axis of the cover positioned.
  • the cover can be advantageous concentric to the central longitudinal axis a passage for the suction function have the pumping device for media storage.
  • the object of the invention is also achieved in that a closed by a filter arrangement pressure equalization Atmosphere is provided, the filter assembly contaminating Retains components of the atmospheric air. That is it possible to store a medium without preservatives in the media storage stockpile, since contamination of the medium by appropriate Ingredients of the atmospheric air is avoided.
  • the filter arrangement is advantageous including the pressure equalization opening in a cover integrated for the media storage.
  • the filter arrangement has a filter housing which comprises at least one filter membrane and the form or non-positively or cohesively in the correspondingly designed pressure compensation opening is fitted.
  • the filter housing is preferred made of plastic.
  • the filter membrane preferably consists of PP / PTFE or made of TPE / PES.
  • the filter membrane is on the Laminated filter housing or encapsulated by the filter housing. hereby is a safe and constant positioning of the filter membrane given that ensures a reliable filter effect.
  • a closure cap 1 the on a media storage, preferably in the form of a bottle or can-shaped container, can be snapped on.
  • the cover 1 cup-shaped and it has on its inner circumference an unspecified ring shoulder on a corresponding one Ring flange in a neck area of the media store can be snapped on.
  • a circumferential elastic seal not designated, is provided, that when the cover 1 is snapped onto the neck of the media store is compressed and so a tight seal of the Media storage guaranteed.
  • a cup-like receiving part 2 which is opposite to the media storage, not shown, coaxial with a central longitudinal axis of the cover 1 protrudes upwards.
  • the recording part 2 forms an outer, shell-shaped housing part for a subsequent Pump device described in more detail, which is part of the metering device 1 is. Also protruding in one piece from the closure cover 1, namely coaxially within the receiving part 2 is a fixed one Pump housing part 3 is provided, the coaxial to the central longitudinal axis the cover 1 is provided with a discharge channel 6, which both down to the media storage and up in Direction of a metering opening 18 is open. In a lower section the discharge channel 6 is a fundamentally known, preferably flexible Intake 7 used.
  • An upper section of the discharge channel 6 is designed as a metering section 13 by this upper section starting from a step-like tapering of the discharge channel 6 a cylindrical dosing channel opposite the lower section of the discharge channel 6 represents a reduced diameter.
  • the as a dosing channel designed metering section 13 is of an inner cylinder jacket 4 surrounded.
  • the inner one forms a radial distance from the inner cylinder jacket 4
  • Pump housing part 3 an outer cylinder jacket 5, which - like the inner cylinder jacket 4 - integrally formed on the cover 1 is.
  • the outer cylinder jacket 5 is coaxial with the inner cylinder jacket aligned.
  • annular displacement space 14 Between the inner cylinder jacket 4 and the outer cylinder jacket 5 remains an annular displacement space 14, which will be discussed in more detail below and which a pump chamber counts.
  • the stroke-movable pump unit has one outer pump housing part 8, with an inner pump piston unit 9 to 11 is firmly connected.
  • the pump piston unit 9 to 11 is separate Made as a one-piece component and inside the outer Pump housing part 8 locked.
  • the pump piston unit has one Piston body 9, which in an upper region has a cylinder space for forms a coaxially arranged, stroke-movable outlet valve 16.
  • the Exhaust valve 16 is by a compression spring arrangement, in the present in Form of an unspecified helical compression spring, in the closing direction so pressurized that the piston-shaped outlet valve 16 the Closes outlet opening 18.
  • the compression spring arrangement is inside of the piston-shaped outlet valve 16 and is supported a bottom of the cylinder space of the piston body 9.
  • the cylinder room of the piston body 9 is in its upper edge region with a Provide all-round sealing lip, which is circumferentially close to the outer jacket of the piston-shaped outlet valve 16 nestles. Thereby is the cylinder space and thus also the receiving space for the compression spring arrangement against the ingress of a medium, especially one Liquid, sealed.
  • the outlet valve 16 is also a filler formed by taking the inside of the outer pump housing part 8 almost completely filled.
  • the piston body 9 is also a packing designed by its outer contour largely to the Inner contour of the outer pump housing part 8 is adapted.
  • the piston body 9 there is a first section to the pump chamber associated outlet chamber 17 formed to the displacement space 14 and the metering section 13 is open.
  • This first section is in its upper area is open radially to the outside and goes into one Annular chamber section of the outlet chamber 17, which between the Outer jacket of the piston body 9, the outer contour of the exhaust valve 16 and the inner contour of the outer pump housing part 8 is formed.
  • the locking flange area with the outer pump housing part 8 is the annular chamber section closed axially downwards.
  • the outlet valve 16 closes the annular chamber section of FIG Outlet chamber 17.
  • the piston body 9 forms a coaxially inner one Valve piston 10, which together with the inner cylinder jacket 4th in the area of the metering section 13 an inlet valve designed as a slide valve forms for the pumping device.
  • the valve piston 10 which is integrally formed on the piston body 9, in a lower one Area provided with an annular dosing lip 12, which is at a Immersion of the valve piston 10 in the metering section 13 tightly an inner wall of the metering section 13 forming metering channel snugly.
  • the diameter of the dosing lip 12 is larger than that Diameter of the valve piston 10.
  • the length of the valve piston 10 as well the stroke of the piston body 9 and thus the entire stroke movable Pump unit are dimensioned so that the dosing lip 12 in one upper, open position shown in Fig. 1 at a short distance is positioned above the metering section 13.
  • a lower, complete pushed down end position of the lifting pump unit is the dosing lip 12 in the step-like extension of the discharge channel 6 driven in, i.e. it is beyond the metering section 13 been moved down.
  • the valve piston 10 is coaxial and at a radial distance from a bell-like one Displacement piston 11 enclosed by a lower Sealing edge all around close to an inner wall of the annular Displacer 14 is present.
  • the cross section of the bell-shaped Displacement piston 11 is on the cross section of the displacement space 14 adjusted so that in the downward moved end position the piston body leaves almost no dead space in the displacement chamber, since the displacer 11 in this position completely in the Displacement chamber 14 is immersed.
  • the one between the outer wall of the valve piston 10 and the inner wall of the displacement piston 11 remaining annulus is in volume on body volume of the inner cylinder jacket 4 matched, which the remaining dead space volume with the pump unit moved down is further reduced.
  • the piston-shaped outlet valve 16 is in the area its outer casing with several ring steps, the pressure application areas form to open the exhaust valve 16.
  • the protective cap 19 has a bell shape which widens conically downwards via an upper molded section of the outer pump housing part 8 is turned over and on an annular shoulder shoulder of the pump housing part 8 axially comes to rest.
  • the protective cap 19 is manually detachable the molded section of the pump housing part 8 snapped.
  • the outside diameter the protective cap 19 is less than the maximum outer diameter of the pump housing part 8.
  • the upper mold section of the Pump housing part 8 is designed as a nose olive for an application to allow a medium contained in the media storage in the nose.
  • the one stored in the media store Medium contain at least one active pharmaceutical ingredient.
  • an actuating handle 20 snapped on, at least on its top on two opposite sides, each with a finger rest is provided on an outer jacket area of the outer pump housing part 8 .
  • the finger rests provided with profiles.
  • circumferential locking web 21 is provided, the above at least one Locking groove is assigned in the corresponding inner edge portions of the Engage the actuating handle 20 axially.
  • the operating handle 20 on the pump housing part 8 by means of an unsolvable Snap connection snapped on, i.e. after the actuating handle has been snapped on axially 20 this is no longer from the pump housing part 8 removable without being destroyed.
  • the pump housing part 8 has a cylindrical one Guide jacket on the in its lower edge area several, over the outer circumference of the guide jacket on the same Height distributed stop cam 23 is provided with a radially inwardly projecting, circumferential locking collar 24 of the or cup-like receiving part 2 cooperate.
  • the locking cams 23 and the locking collar 24 form locking profiles that secure the axial of the movable pump housing part 8 on the fixed Ensure receiving part 2.
  • the locking profiles 23, 24 form an axial retention of the pump housing part 8 against the Compressive force of a pump spring arrangement 15, which acts as a pump drive for a Resetting the stroke-movable pump unit into that shown in FIG. 1 Starting position serves. A manual push down Pump unit thus takes place against the pressure force of the pump spring arrangement 15.
  • the pump spring arrangement 15 outside the outer cylinder jacket 5 of the inner, fixed Pump housing part 8 arranged so that the pump spring arrangement 15 positioned outside of the pump chamber through which the medium flows is.
  • the pump spring arrangement 15 can thus with the medium, for example one containing at least one active pharmaceutical ingredient Liquid, not in contact.
  • the actuating handle 20 has an annular securing extension 22, which projects downwards as a cylinder jacket and in which in FIG. 1 shown, upper end position of the pump unit, the receiving part 2 protrudes axially so far that it covers the area of the locking profiles 23, 24 overlaps.
  • the distance from the outside of the receiving part to the inner wall the protective extension 22 is preferably less than the radial Extension of the locking profiles 23, 24 so that the rigid, annular Protective extension 22 a protection against loosening the locking profiles 23, 24 and thus a trigger protection for the pump housing part 8 forms.
  • a pressure compensation device 25, 26, D provided in the sealing cover 1 is integrated.
  • the pressure compensation device has one strongly tapering towards the outside, serving as a pressure compensation opening Nozzle bore D, the narrowest diameter of which is preferred Does not exceed 0.2mm to 0.3mm. This is a gas exchange guaranteed, however, a loss of fluid is due to the extreme small nozzle bore D minimized. This results in a reduced Evaporation.
  • the reduced evaporation is particularly advantageous for the filter arrangement 25 additionally provided in FIG. 1.
  • the filter arrangement 25 has a housing for unspecified a membrane-shaped filter 26.
  • the housing is in one Corresponding receptacle of the cover 1 used and preferably glued into it or firmly attached in some other way this connected.
  • the membrane-shaped filter 26 is in the illustrated Embodiment molded from the receiving housing and thus in this integrated. Alternatively, it is also possible to use the membrane-shaped one Laminate filter 26 on an upper end edge of the receiving housing.
  • the membrane-shaped filter is preferably a PP / PTFE membrane or a TPE / PES membrane.
  • the filter 26 serves to contamination of the medium in the media store to avoid by the through the nozzle bore D at a corresponding Pumping process as pressure equalization of atmospheric air drawn in is cleaned by the appropriate membrane. A water or Ingress of moisture is avoided by the filter arrangement 25.
  • valve piston 10 in connection with the Dosing lip 12 and the metering section 13 formed inlet valve works with manual actuation of the actuation handle 20 as a slide, by the outer pump housing part 8 together with the pump unit 9 to 11 is moved down. Due to the fact that the dosing lip 12 with a complete stroke of the pump unit down below the metering section 13 and thus below the step-shaped Paragraph in the discharge channel 6 runs outside, a so-called priming allows.
  • the displacement space 14 and the annular space between the inner Valve piston 10 and the outer displacement piston 11 defined Pump space of the pump device air during a lifting movement the pump unit down into the discharge channel 6 and thus in the intake port 7 and escape into the media storage. The corresponding suction takes place during the subsequent return stroke of the liquid medium. Due to the extremely small dead space volume within the pump chamber serving as the pump chamber A pumping device is preferably sufficient as a priming stroke, to ensure sufficient suction of the medium to be dispensed to achieve in the pumping chamber. The length of the stroke of the dosing lip 12 along the metering section 13 defines the metering volume.
  • a discharge process takes place as soon as the liquid pressure in the pump chamber, i.e. especially in the upper area of the outlet chamber 17, which acts on the piston-shaped outlet valve 16, that by the compression spring arrangement applied back pressure exceeds.
  • the fluid pressure then presses the exhaust valve 16 against the pressing force of the Compression spring arrangement downwards, whereby via the outlet opening 18th the corresponding discharge process of the medium takes place.
  • the outlet opening 18 is preferably nozzle-shaped for atomization of the applied medium.
  • the protective cap 19 is removed.
  • the dosing device shown in Fig. 1 consists of a few plastic components, in the present case from a total of only six plastic components.
  • the cover 1 connects a first plastic component with the receiving part 2 and the inner pump housing part 3
  • the second plastic component is through the outer pump housing part 8 formed.
  • the third plastic component is the pump piston unit 9 to 11.
  • the fourth plastic component is the piston-shaped outlet valve 16.
  • the fifth plastic component is the one with the finger rests Actuating handle 20 and the last plastic component is the Protective cap 19.
  • a pump device corresponds P of the pump device previously described with reference to FIG. 1, so that for a more detailed explanation of the pump device P on the detailed description of Fig. 1 is referenced.
  • functionally identical Parts have the same reference numerals compared to the embodiment 1, but with the addition of the letter "a", Mistake.
  • the following is only the differences of the pumping device P entered into the pumping device in FIG. 1.
  • the remaining metering device, in which the pump device P is integrated is described.
  • the pump device P as a separate unit Can be manufactured separately from the dosing device and detachable with it connected is.
  • 2 to 4 is the Receiving part 2a also integrally with the inner pump housing part designed.
  • the closure cover 28 is sleeve or designed like a ring and has a recess into which the Receiving part 2a of the pump device P by means of a rotating one Ring flange is clickable. For this is an edge of the well provided with an annular locking point, which in FIGS. 2 and 3 recognizable, but is not specified.
  • a dense and game-free Seat of the ring flange and thus of the receiving part 2a in the receiving recess the cover 28 is through an annular seal 29 guaranteed, which is positioned below the ring flange and on a plate rim of the ring-shaped receiving recess of the closure cover 28 rests.
  • the closure cover 28 is a plastic part designed and with an upper edge area of the container cup B locked or firmly connected to it by crimping.
  • the closure cover 28 is below the plate rim of the receiving recess provided with an integrally molded profile ring 27, the as an extension to the closure lid 28 into the interior of the container cup B protrudes.
  • the profile ring with several parallel and spaced ring ribs 32 provided radially to a central longitudinal axis of the closure cover 28 protrude outwards.
  • the sectional view in FIGS. 2 and 3 is in each case by two Ribs pulled through.
  • An actuating handle 20a for the pump device P corresponds with regard to their pump actuation function of the actuation handle 20 1.
  • the actuating handle 20a is also in the form of a cup Designed cylinder jacket that the container cup B over more than axially overlaps half of its height.
  • the outer shell of the container cup B and an inner wall of a lower edge area of the Cylinder jacket 22a of the actuating handle 20a are corresponding Stop profiles 30, 31 provided that each other in the axial Grip in the positive direction. This will make for the actuation handle 20a ensures axial locking. Because the operating handle 20a - like the actuating handle 20 according to FIG. 1 - snapped onto the outer pump housing part of the pump device P. is, the stop profiles 30 and 31 at the same time Stroke limitation of the pump device P created the necessary Retaining force against the pressure force of the pump spring arrangement 15 offers.
  • FIG. 2 and the illustration in FIG. 3 are minor modified. So in the embodiment of FIG. 3 in the Receiving part 2a of the pump device P a receptacle for use a filter arrangement is provided, as can be seen from FIG. 1. If the cover 28 is therefore a tight seal of the container cup B offers, the container cup B can directly as a media storage serve for a corresponding liquid, because despite the dimensionally stable Container cup B through the one provided with the nozzle bore Recording, possibly with the additional use of a filter arrangement, adequate pressure equalization during the operation of the Pump device P is given.
  • the media store S is made up of one single or multi-layer film made of foil bags, the circumferential is tightly connected to the profile ring 27.
  • the Foil bag welded to the profile ring 27, the profiles of the profile ring 27, the surface for a tight welding of Enlarge the foil bag with the profile ring 27.
  • This is a big one Safety of the welded joint as well as the tight seal of the foil bag with the profile ring 27 guaranteed.
  • the one as media storage S serving foil bag is thus only for the pumping device P open, whereby the same pump and discharge function can be achieved is like in the embodiment according to FIG. 1. With each discharge process the volume of the media storage S decreases, which causes the film bag contracts.
  • the flexible wall of the foil bag thus enables pressure and volume compensation within the media storage S with corresponding discharge processes of the pump device P.
  • FIG. 5 and 6 is a metering device shown, the pumping device with the pumping device after Fig. 1 matches. Functionally identical parts of the dosing device are provided with the same reference numerals as in the embodiment 1, but with the addition of the letter "b". In terms of a more detailed explanation is given in the description of FIG. 1 directed. In the following, reference will only be made to those shown in FIGS. 5 and 6 Differences discussed in detail. Significant difference is that the receiving part 2b is similar to the embodiment 2 to 4 separately to a cover 1b is designed. The closure cover 1b is designed as a crimp cover, on a corresponding container neck of a media store is attachable.
  • the mounting of the receiving part 2b together with the cover 1 b, which is designed as a crimp cover, is made with interposition an unspecified, circumferential elastic Poetry.
  • the actuating handle 20b has a cup-shaped Protective extension 22b, which extends beyond the crimped cover Cap 1b is pulled down so that the protective extension 22b a crimping area of the closing cover designed as a crimping cover 1b axially covered. This will loosen the cover 1b from a corresponding container neck of a media store avoided as soon as the operating handle 20b on the outer Pump housing part 8b of the pumping device according to the illustration and Description according to Fig. 1 is snapped on.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A dosing unit comprises a media storage unit (S), and a pump unit (P) for dosing and supplying the medium in the storage unit, and a pressure equalisation member. The storage unit has a pressure sensitive, flexible wall. The pressure equalisation opening and/or filter arrangement has a pressure sensitive, flexible wall. The filter membrane is laminated onto the filter housing.

Description

Die Erfindung betrifft eine Dosiervorrichtung mit einem Medienspeicher sowie mit einer Pumpvorrichtung zum Dosieren und Ausbringen eines in dem Medienspeicher bevorrateten Mediums, sowie mit dem Medienspeicher zugeordneten Druckausgleichsmitteln.The invention relates to a metering device with a media store as well as with a pump device for dosing and dispensing an in the media storage medium, as well as with the media storage assigned pressure compensation means.

Eine solche Dosiervorrichtung ist aus der DE 33 39 180 C2 bekannt. Als Druckausgleichsmittel ist dem Medienspeicher ein Schleppkolben zugeordnet, der abhängig von der Volumenreduzierung des Mediums im Medienspeicher innerhalb des zylindrischen Medienspeichers durch den stehenden Unterdruck translatorisch bewegt wird.Such a metering device is known from DE 33 39 180 C2. As A drag piston is assigned to the media reservoir, which depends on the volume reduction of the medium in the Media storage within the cylindrical media storage by the standing vacuum is moved translationally.

Aufgabe der Erfindung ist es, eine Dosiervorrichtung der eingangs genannten Art zu schaffen, die mit einfachen und zuverlässigen Mitteln einen Druckausgleich ermöglicht.The object of the invention is a metering device of the aforementioned Art to create one with simple and reliable means Allows pressure equalization.

Diese Aufgabe wird dadurch gelöst, dass der Medienspeicher mit druckempfindlichen, flexiblen Wandungen versehen ist. Vorzugsweise wird der Medienspeicher durch flexible Folienwandungen einer ein- oder mehrschichtigen Folie begrenzt. Die flexiblen Wandungen ermöglichen einen Druck- und Volumenausgleich, indem beim Ausbringen des Mediums die Wandungen sich abhängig vom jeweils entstehenden Unterdruck entsprechend zusammenziehen. Als Folienmaterial werden insbesondere gas- und/oder flüssigkeitsdichten Kunststofffolien eingesetzt, die vorzugsweise innenseitig metallbeschichtet sind. Besonders geeignet sind aluminiumbeschichtete Folien.This task is solved in that the media storage with pressure-sensitive, flexible walls is provided. Preferably the media storage through flexible film walls one or multilayer film limited. The flexible walls allow a pressure and volume equalization by the discharge of the medium the walls change depending on the negative pressure that arises contract accordingly. In particular, as film material gas and / or liquid-tight plastic films used, which are preferably metal-coated on the inside. Particularly suitable are aluminum-coated foils.

Die erfindungsgemäße Aufgabe wird auch dadurch gelöst, dass dem Medienspeicher wenigstens eine zu einer Atmosphäre hin offene Druckausgleichsöffnung zugeordnet ist, die eine sich zur Atmosphäre hin verjüngende Düsenform mit einem minimalen Durchmesser von 0,1mm bis 0,3mm aufweist. Hierdurch wird ein Druckausgleich ermöglicht. Der geringe Öffnungsdurchmesser der Druckausgleichsöffnung gewährleistet die notwendige Druckausgleichsmöglichkeit. Gleichzeitig wird aufgrund des äußerst geringen Öffnungsdurchmessers eine Verdunstung des innerhalb des Medienspeichers befindlichen Mediums nahezu vollständig vermieden. Vorteilhaft ist die Druckausgleichsöffnung in einen Verschlussdeckel des Medienspeichers integriert. Vorzugsweise ist die Druckausgleichsöffnung exzentrisch zu einer Mittellängsachse des Verschlussdeckels positioniert. Dadurch kann der Verschlussdeckel vorteilhaft konzentrisch zu der Mittellängsachse einen Durchtritt für die Ansaugfunktion der Pumpvorrichtung zum Medienspeicher aufweisen.The object of the invention is also achieved in that the Media storage at least one pressure compensation opening open to an atmosphere is assigned, which tapers towards the atmosphere Nozzle shape with a minimum diameter of 0.1mm to 0.3mm. This enables pressure equalization. The little one Guaranteed opening diameter of the pressure equalization opening the necessary pressure equalization option. At the same time is due the extremely small opening diameter an evaporation of the medium contained in the media storage almost completely avoided. The pressure equalization opening in a sealing cover is advantageous of the media storage integrated. Preferably the Pressure equalization opening eccentric to a central longitudinal axis of the cover positioned. As a result, the cover can be advantageous concentric to the central longitudinal axis a passage for the suction function have the pumping device for media storage.

Die erfindungsgemäße Aufgabe wird auch dadurch gelöst, dass eine durch eine Filteranordnung verschlossene Druckausgleichsöffnung zur Atmosphäre hin vorgesehen ist, wobei die Filteranordnung kontaminierende Bestandteile der Atmosphärenluft zurückhält. Dadurch ist es möglich, in dem Medienspeicher ein Medium konservierungsmittelfrei zu bevorraten, da eine Kontaminierung des Mediums durch entsprechende Inhaltsstoffe der Atmosphärenluft vermieden wird. Vorteilhaft ist die Filteranordnung einschließlich der Druckausgleichsöffnung in einem Verschlussdeckel für den Medienspeicher integriert.The object of the invention is also achieved in that a closed by a filter arrangement pressure equalization Atmosphere is provided, the filter assembly contaminating Retains components of the atmospheric air. That is it possible to store a medium without preservatives in the media storage stockpile, since contamination of the medium by appropriate Ingredients of the atmospheric air is avoided. The filter arrangement is advantageous including the pressure equalization opening in a cover integrated for the media storage.

In Ausgestaltung der Erfindung weist die Filteranordnung ein Filtergehäuse auf, das wenigstens eine Filtermembran umfasst, und das formoder kraft- oder stoffschlüssig in die korrespondierend gestaltete Druckausgleichsöffnung eingepasst ist. Das Filtergehäuse ist vorzugsweise aus Kunststoff hergestellt. Die Filtermembran besteht vorzugsweise aus PP/PTFE oder aus TPE/PES.In an embodiment of the invention, the filter arrangement has a filter housing which comprises at least one filter membrane and the form or non-positively or cohesively in the correspondingly designed pressure compensation opening is fitted. The filter housing is preferred made of plastic. The filter membrane preferably consists of PP / PTFE or made of TPE / PES.

In weiterer Ausgestaltung der Erfindung ist die Filtermembran auf das Filtergehäuse auflaminiert oder von dem Filtergehäuse umspritzt. Hierdurch ist eine sichere und gleichbleibende Positionierung der Filtermembran gegeben, die eine zuverlässige Filterwirkung gewährleistet.In a further embodiment of the invention, the filter membrane is on the Laminated filter housing or encapsulated by the filter housing. hereby is a safe and constant positioning of the filter membrane given that ensures a reliable filter effect.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen sowie aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele der Erfindung, die anhand der Zeichnungen dargestellt sind.

Fig. 1
zeigt in einem Längsschnitt eine Ausführungsform einer Dosiervorrichtung mit einer Pumpvorrichtung und einer Druckausgleichsvorrichtung,
Fig. 2
eine weitere Ausführungsform einer Dosiervorrichtung mit einem wandungsflexiblen Medienspeicher und einer Pumpvorrichtung ähnlich Fig. 1,
Fig. 3
die Dosiervorrichtung nach Fig. 2 in längsgeschnittener Darstellung,
Fig. 4
in vergrößerter, als Halbschnitt gezeigter Darstellung eine als Deckel dienende Aufnahmeeinheit der Dosiervorrichtung nach Fig. 3,
Fig. 5
in einem Längsschnitt eine Dosiervorrichtung ähnlich Fig. 1 und
Fig. 6
die Dosiervorrichtung nach Fig. 5 mit entfernter Betätigungshandhabe.
Further advantages and features of the invention result from the claims and from the following description of preferred exemplary embodiments of the invention, which are illustrated with the aid of the drawings.
Fig. 1
2 shows a longitudinal section of an embodiment of a metering device with a pump device and a pressure compensation device,
Fig. 2
1 another embodiment of a metering device with a wall-flexible media storage and a pump device similar to FIG. 1,
Fig. 3
2 in longitudinal section,
Fig. 4
3, in an enlarged illustration, shown as a half-section, a receiving unit serving as a cover of the metering device according to FIG. 3,
Fig. 5
in a longitudinal section a metering device similar to Fig. 1 and
Fig. 6
5 with the actuating handle removed.

Eine Dosiervorrichtung nach Fig. 1 weist einen Verschlussdeckel 1 auf, der auf einen Medienspeicher, vorzugsweise in Form eines flaschenoder dosenförmigen Behältnisses, aufrastbar ist. Hierzu ist der Verschlussdeckel 1 becherartig gestaltet und er weist an seinem Innenumfang eine nicht näher bezeichnete Ringschulter auf, die auf einen korrespondierenden Ringflansch in einem Halsbereich des Medienspeichers aufrastbar ist. In einem oberen Bereich des Verschlussdeckels 1 ist eine nicht bezeichnete, umlaufende elastische Dichtung vorgesehen, die beim Aufrasten des Verschlussdeckels 1 auf den Hals des Medienspeichers komprimiert wird und so einen dichten Verschluss des Medienspeichers gewährleistet. An den Verschlussdeckel 1 einstückig angeformt ist ein becherartiger Aufnahmeteil 2, der entgegengesetzt zu dem nicht dargestellten Medienspeicher koaxial zu einer Mittellängsachse des Verschlussdeckels 1 nach oben abragt. Der Aufnahmeteil 2 bildet einen äußeren, mantelförmigen Gehäuseteil für eine nachfolgend näher beschriebenen Pumpvorrichtung, die Teil der Dosiervorrichtung nach Fig. 1 ist. Ebenfalls einstückig von dem Verschlussdeckel 1 abragend, und zwar koaxial innerhalb des Aufnahmeteils 2 ist ein feststehender Pumpgehäuseteil 3 vorgesehen, der koaxial zur Mittellängsachse des Verschlussdeckels 1 mit einem Austragkanal 6 versehen ist, der sowohl nach unten zum Medienspeicher hin als auch nach oben in Richtung einer Dosieröffnung 18 hin offen ist. In einem unteren Abschnitt des Austragkanals 6 ist ein grundsätzlich bekannter, vorzugsweise flexibler Ansaugstutzen 7 eingesetzt. Ein oberer Abschnitt des Austragkanals 6 ist als Dosierstrecke 13 gestaltet, indem dieser obere Abschnitt ausgehend von einer stufenförmigen Verjüngung des Austragkanals 6 einen zylindrischen Dosierkanal mit gegenüber dem unteren Abschnitt des Austragkanals 6 verringerten Durchmesser darstellt. Die als Dosierkanal gestaltete Dosierstrecke 13 ist von einem inneren Zylindermantel 4 umgeben.1 has a closure cap 1, the on a media storage, preferably in the form of a bottle or can-shaped container, can be snapped on. For this is the cover 1 cup-shaped and it has on its inner circumference an unspecified ring shoulder on a corresponding one Ring flange in a neck area of the media store can be snapped on. In an upper area of the cover 1 a circumferential elastic seal, not designated, is provided, that when the cover 1 is snapped onto the neck of the media store is compressed and so a tight seal of the Media storage guaranteed. In one piece on the cover 1 is molded on a cup-like receiving part 2, which is opposite to the media storage, not shown, coaxial with a central longitudinal axis of the cover 1 protrudes upwards. The recording part 2 forms an outer, shell-shaped housing part for a subsequent Pump device described in more detail, which is part of the metering device 1 is. Also protruding in one piece from the closure cover 1, namely coaxially within the receiving part 2 is a fixed one Pump housing part 3 is provided, the coaxial to the central longitudinal axis the cover 1 is provided with a discharge channel 6, which both down to the media storage and up in Direction of a metering opening 18 is open. In a lower section the discharge channel 6 is a fundamentally known, preferably flexible Intake 7 used. An upper section of the discharge channel 6 is designed as a metering section 13 by this upper section starting from a step-like tapering of the discharge channel 6 a cylindrical dosing channel opposite the lower section of the discharge channel 6 represents a reduced diameter. The as a dosing channel designed metering section 13 is of an inner cylinder jacket 4 surrounded.

Radial in Abstand zu dem inneren Zylindermantel 4 bildet der innere Pumpgehäuseteil 3 einen äußeren Zylindermantel 5, der - wie auch der innere Zylindermantel 4 - einstückig an dem Verschlussdeckel 1 angeformt ist. Der äußere Zylindermantel 5 ist koaxial zu dem inneren Zylindermantel ausgerichtet. Zwischen dem inneren Zylindermantel 4 und dem äußeren Zylindermantel 5 verbleibt ein ringförmiger Verdrängerraum 14, auf den nachfolgend noch näher eingegangen wird und der zu einer Pumpkammer zählt.The inner one forms a radial distance from the inner cylinder jacket 4 Pump housing part 3 an outer cylinder jacket 5, which - like the inner cylinder jacket 4 - integrally formed on the cover 1 is. The outer cylinder jacket 5 is coaxial with the inner cylinder jacket aligned. Between the inner cylinder jacket 4 and the outer cylinder jacket 5 remains an annular displacement space 14, which will be discussed in more detail below and which a pump chamber counts.

Relativ zu dem lagefest am Medienspeicher befestigbaren Aufnahmeteil 2 einschließlich des inneren Pumpgehäuseteils 3 ist eine Pumpeinheit hubbeweglich gelagert. Die hubbewegliche Pumpeinheit weist einen äußeren Pumpgehäuseteil 8 auf, der mit einer inneren Pumpkolbeneinheit 9 bis 11 fest verbunden ist. Die Pumpkolbeneinheit 9 bis 11 ist separat als einstückiges Bauteil hergestellt und im Inneren des äußeren Pumpgehäuseteiles 8 verrastet. Die Pumpkolbeneinheit weist einen Kolbenkörper 9 auf, der in einem oberen Bereich einen Zylinderraum für ein koaxial angeordnetes, hubbewegliches Auslassventil 16 bildet. Das Auslassventil 16 ist durch eine Druckfederanordnung, vorliegend in Form einer nicht näher bezeichneten Schraubendruckfeder, in Schließrichtung so druckbelastet, dass das kolbenförmige Auslassventil 16 die Auslassöffnung 18 verschließt. Die Druckfederanordnung ist im Inneren des kolbenförmigen Auslassventils 16 angeordnet und stützt sich an einem Boden des Zylinderraumes des Kolbenkörpers 9 ab. Der Zylinderraum des Kolbenkörpers 9 ist in seinem oberen Randbereich mit einer umlaufenden Dichtlippe versehen, die sich umlaufend dicht an den Außenmantel des kolbenförmigen Auslassventils 16 anschmiegt. Dadurch ist der Zylinderraum und damit auch der Aufnahmeraum für die Druckfederanordnung gegen das Eindringen eines Mediums, insbesondere einer Flüssigkeit, abgedichtet. Das Auslassventil 16 ist zusätzlich als Füllstück ausgebildet, indem es das Innere des äußeren Pumpgehäuseteiles 8 nahezu vollständig ausfüllt. Auch der Kolbenkörper 9 ist als Füllkörper gestaltet, indem er mit seiner Außenkontur weitgehend an die Innenkontur des äußeren Pumpgehäuseteiles 8 angepasst ist.Relative to the receptacle part that can be securely attached to the media storage 2 including the inner pump housing part 3 is a pump unit lifted. The stroke-movable pump unit has one outer pump housing part 8, with an inner pump piston unit 9 to 11 is firmly connected. The pump piston unit 9 to 11 is separate Made as a one-piece component and inside the outer Pump housing part 8 locked. The pump piston unit has one Piston body 9, which in an upper region has a cylinder space for forms a coaxially arranged, stroke-movable outlet valve 16. The Exhaust valve 16 is by a compression spring arrangement, in the present in Form of an unspecified helical compression spring, in the closing direction so pressurized that the piston-shaped outlet valve 16 the Closes outlet opening 18. The compression spring arrangement is inside of the piston-shaped outlet valve 16 and is supported a bottom of the cylinder space of the piston body 9. The cylinder room of the piston body 9 is in its upper edge region with a Provide all-round sealing lip, which is circumferentially close to the outer jacket of the piston-shaped outlet valve 16 nestles. Thereby is the cylinder space and thus also the receiving space for the compression spring arrangement against the ingress of a medium, especially one Liquid, sealed. The outlet valve 16 is also a filler formed by taking the inside of the outer pump housing part 8 almost completely filled. The piston body 9 is also a packing designed by its outer contour largely to the Inner contour of the outer pump housing part 8 is adapted.

In dem Kolbenkörper 9 ist ein erster Abschnitt einer zur Pumpkammer gehörenden Auslasskammer 17 gebildet, die zu dem Verdrängerraum 14 und der Dosierstrecke 13 hin offen ist. Dieser erste Abschnitt ist in seinem oberen Bereich radial nach außen hin offen und geht in einen Ringkammerabschnitt der Auslasskammer 17 über, der zwischen dem Außenmantel des Kolbenkörpers 9, der Außenkontur des Auslassventils 16 und der Innenkontur des äußeren Pumpgehäuseteiles 8 gebildet ist. Durch die Rastverbindung des Kolbenkörpers 9 in einem ringförmigen Rastflanschbereich mit dem äußeren Pumpgehäuseteil 8 ist der Ringkammerabschnitt axial nach unten geschlossen. Zur Auslassöffnung 18 hin verschließt das Auslassventil 16 den Ringkammerabschnitt der Auslasskammer 17.In the piston body 9 there is a first section to the pump chamber associated outlet chamber 17 formed to the displacement space 14 and the metering section 13 is open. This first section is in its upper area is open radially to the outside and goes into one Annular chamber section of the outlet chamber 17, which between the Outer jacket of the piston body 9, the outer contour of the exhaust valve 16 and the inner contour of the outer pump housing part 8 is formed. By the snap connection of the piston body 9 in an annular The locking flange area with the outer pump housing part 8 is the annular chamber section closed axially downwards. To outlet opening 18 the outlet valve 16 closes the annular chamber section of FIG Outlet chamber 17.

In einem unteren Bereich bildet der Kolbenkörper 9 einen koaxial inneren Ventilkolben 10, der zusammen mit dem inneren Zylindermantel 4 im Bereich der Dosierstrecke 13 ein als Schieberventil gestaltetes Einlassventil für die Pumpvorrichtung bildet. Hierzu ist der Ventilkolben 10, der einstückig an dem Kolbenkörper 9 angeformt ist, in einem unteren Bereich mit einer ringförmigen Dosierlippe 12 versehen, die sich bei einem Eintauchen des Ventilkolbens 10 in die Dosierstrecke 13 dicht an eine Innenwandung des die Dosierstrecke 13 bildenden Dosierkanals anschmiegt. Der Durchmesser der Dosierlippe 12 ist größer als der Durchmesser des Ventilkolbens 10. Die Länge des Ventilkolbens 10 sowie der Hub des Kolbenkörpers 9 und damit der gesamten, hubbeweglichen Pumpeinheit sind so bemessen, dass die Dosierlippe 12 in einer oberen, in Fig. 1 dargestellten Öffnungsstellung im geringen Abstand oberhalb der Dosierstrecke 13 positioniert ist. In einer unteren, vollständig nach unten gedrückten Endposition der hubbeweglichen Pumpeinheit ist die Dosierlippe 12 in die stufenförmige Erweiterung des Austragkanals 6 hineingefahren, d.h. sie ist über die Dosierstrecke 13 hinaus nach unten bewegt worden. Da der Außendurchmesser der Dosierlippe 12 geringer ist als der Durchmesser des Austragkanals 6 in den stufenförmig erweiterten Bereich und darüber hinaus der Durchmesser des Ventilkolbens 10 geringer ist als der Innendurchmesser der Dosierstrecke 13, kann in dieser unteren Endposition der Pumpeinheit ein Mediumaustausch zwischen der Auslasskammer 17 und dem Medienspeicher - über den Ansaugstutzen 7 - erfolgen.In a lower region, the piston body 9 forms a coaxially inner one Valve piston 10, which together with the inner cylinder jacket 4th in the area of the metering section 13 an inlet valve designed as a slide valve forms for the pumping device. For this purpose, the valve piston 10 which is integrally formed on the piston body 9, in a lower one Area provided with an annular dosing lip 12, which is at a Immersion of the valve piston 10 in the metering section 13 tightly an inner wall of the metering section 13 forming metering channel snugly. The diameter of the dosing lip 12 is larger than that Diameter of the valve piston 10. The length of the valve piston 10 as well the stroke of the piston body 9 and thus the entire stroke movable Pump unit are dimensioned so that the dosing lip 12 in one upper, open position shown in Fig. 1 at a short distance is positioned above the metering section 13. In a lower, complete pushed down end position of the lifting pump unit is the dosing lip 12 in the step-like extension of the discharge channel 6 driven in, i.e. it is beyond the metering section 13 been moved down. Because the outside diameter of the dosing lip 12 is smaller than the diameter of the discharge channel 6 in the stepped expanded area and also the diameter of the Valve piston 10 is less than the inside diameter of the metering section 13, a medium exchange can take place in this lower end position of the pump unit between the outlet chamber 17 and the media store - via the intake manifold 7 -.

Koaxial und in radialem Abstand ist der Ventilkolben 10 von einem glockenartigen Verdrängerkolben 11 umschlossen, der mittels eines unteren Dichtrandes umlaufend dicht an einer Innenwandung des ringförmigen Verdrängerraumes 14 anliegt. Der Querschnitt des glockenförmigen Verdrängerkolbens 11 ist an den Querschnitt des Verdrängerraumes 14 derart angepasst, dass in der nach unten bewegten Endposition des Kolbenkörpers nahezu kein Totraum im Verdrängerraum verbleibt, da der Verdrängerkolben 11 in dieser Position vollständig in den Verdrängerraum 14 eingetaucht ist. Auch der zwischen der Außenwandung des Ventilkolbens 10 und der Innenwandung des Verdrängerkolbens 11 verbleibende Ringraum ist in seinem Volumen auf das Körpervolumen des inneren Zylindermantels 4 abgestimmt, wodurch das verbleibende Totraumvolumen bei nach unten bewegter Pumpeinheit weiter reduziert ist. Das kolbenförmige Auslassventil 16 ist im Bereich seines Außenmantels mit mehreren Ringstufen versehen, die Druckangriffsflächen zum Öffnen des Auslassventils 16 bilden. Die Schutzkappe 19 weist eine sich konisch nach unten erweiternde Glockenform auf, die über einen oberen Formabschnitt des äußeren Pumpgehäuseteiles 8 gestülpt ist und auf einem Ringschulterabsatz des Pumpgehäuseteiles 8 axial zur Anlage kommt. Die Schutzkappe 19 wird manuell lösbar auf den Formabschnitt des Pumpgehäuseteiles 8 aufgerastet. Der Außendurchmesser der Schutzkappe 19 ist geringer als der maximale Außendurchmesser des Pumpgehäuseteils 8. Der obere Formabschnitt des Pumpgehäuseteils 8 ist als Nasenolive gestaltet, um eine Applikation eines in dem Medienspeicher enthaltenen Mediums in die Nase zu ermöglichen. Vorzugsweise ist in dem in dem Medienspeicher gelagerten Medium wenigstens ein pharmazeutischer Wirkstoff enthalten.The valve piston 10 is coaxial and at a radial distance from a bell-like one Displacement piston 11 enclosed by a lower Sealing edge all around close to an inner wall of the annular Displacer 14 is present. The cross section of the bell-shaped Displacement piston 11 is on the cross section of the displacement space 14 adjusted so that in the downward moved end position the piston body leaves almost no dead space in the displacement chamber, since the displacer 11 in this position completely in the Displacement chamber 14 is immersed. Also the one between the outer wall of the valve piston 10 and the inner wall of the displacement piston 11 remaining annulus is in volume on body volume of the inner cylinder jacket 4 matched, which the remaining dead space volume with the pump unit moved down is further reduced. The piston-shaped outlet valve 16 is in the area its outer casing with several ring steps, the pressure application areas form to open the exhaust valve 16. The protective cap 19 has a bell shape which widens conically downwards via an upper molded section of the outer pump housing part 8 is turned over and on an annular shoulder shoulder of the pump housing part 8 axially comes to rest. The protective cap 19 is manually detachable the molded section of the pump housing part 8 snapped. The outside diameter the protective cap 19 is less than the maximum outer diameter of the pump housing part 8. The upper mold section of the Pump housing part 8 is designed as a nose olive for an application to allow a medium contained in the media storage in the nose. Preferably, the one stored in the media store Medium contain at least one active pharmaceutical ingredient.

Auf einen Außenmantelbereich des äußeren Pumpgehäuseteiles 8 ist eine Betätigungshandhabe 20 aufgerastet, die an ihrer Oberseite wenigstens auf zwei gegenüberliegenden Seiten mit jeweils einer Fingerauflage versehen ist. In der Darstellung gemäß Fig. 1 sind die Fingerauflagen mit Profilierungen versehen. Zur Axialsicherung der Betätigungshandhabe 20 ist am Außenumfang des Pumpgehäuseteiles 8 ein umlaufender Raststeg 21 vorgesehen, dem oberhalb wenigstens eine Rastnut zugeordnet ist, in die entsprechende Innenrandabschnitte der Betätigungshandhabe 20 axial einrasten. Vorzugsweise wird die Betätigungshandhabe 20 auf dem Pumpgehäuseteil 8 mittels einer unlösbaren Rastverbindung aufgerastet, d.h. nach dem axialen Aufrasten der Betätigungshandhabe 20 ist diese von dem Pumpgehäuseteil 8 nicht mehr entfernbar, ohne zerstört zu werden.On an outer jacket area of the outer pump housing part 8 an actuating handle 20 snapped on, at least on its top on two opposite sides, each with a finger rest is provided. 1 are the finger rests provided with profiles. For axially securing the actuating handle 20 is on the outer periphery of the pump housing part 8 circumferential locking web 21 is provided, the above at least one Locking groove is assigned in the corresponding inner edge portions of the Engage the actuating handle 20 axially. Preferably, the operating handle 20 on the pump housing part 8 by means of an unsolvable Snap connection snapped on, i.e. after the actuating handle has been snapped on axially 20 this is no longer from the pump housing part 8 removable without being destroyed.

Unterhalb des Raststeges 21 weist der Pumpgehäuseteil 8 einen zylindrischen Führungsmantel auf, der in seinem unteren Randbereich mit mehreren, über den Außenumfang des Führungsmantels auf gleicher Höhe verteilt angeordneten Anschlagnocken 23 versehen ist, die mit einem radial nach innen abragenden, umlaufenden Rastbund 24 des mantel- oder becherartigen Aufnahmeteiles 2 zusammenwirken. Die Rastnocken 23 und der Rastbund 24 bilden Rastprofilierungen, die eine Axialsicherung des hubbeweglichen Pumpgehäuseteils 8 an dem feststehenden Aufnahmeteil 2 gewährleisten. Die Rastprofilierungen 23, 24 bilden einen axialen Rückhalt des Pumpgehäuseteils 8 gegen die Druckkraft einer Pumpfederanordnung 15, die als Pumpantrieb für eine Rückstellung der hubbeweglichen Pumpeinheit in die in Fig. 1 dargestellte Ausgangslage dient. Ein manuelles Nachuntendrücken der Pumpeinheit erfolgt somit gegen die Druckkraft der Pumpfederanordnung 15. Wie anhand der Fig. 1 erkennbar ist, ist die Pumpfederanordnung 15 außerhalb des äußeren Zylindermantels 5 des inneren, feststehenden Pumpgehäuseteils 8 angeordnet, so dass die Pumpfederanordnung 15 außerhalb des von Medium durchströmten Pumpraumes positioniert ist. Die Pumpfederanordnung 15 kann somit mit dem Medium, beispielsweise einer wenigstens einen pharmazeutischen Wirkstoff enthaltenden Flüssigkeit, nicht in Verbindung geraten.Below the locking web 21, the pump housing part 8 has a cylindrical one Guide jacket on the in its lower edge area several, over the outer circumference of the guide jacket on the same Height distributed stop cam 23 is provided with a radially inwardly projecting, circumferential locking collar 24 of the or cup-like receiving part 2 cooperate. The locking cams 23 and the locking collar 24 form locking profiles that secure the axial of the movable pump housing part 8 on the fixed Ensure receiving part 2. The locking profiles 23, 24 form an axial retention of the pump housing part 8 against the Compressive force of a pump spring arrangement 15, which acts as a pump drive for a Resetting the stroke-movable pump unit into that shown in FIG. 1 Starting position serves. A manual push down Pump unit thus takes place against the pressure force of the pump spring arrangement 15. As can be seen from FIG. 1, the pump spring arrangement 15 outside the outer cylinder jacket 5 of the inner, fixed Pump housing part 8 arranged so that the pump spring arrangement 15 positioned outside of the pump chamber through which the medium flows is. The pump spring arrangement 15 can thus with the medium, for example one containing at least one active pharmaceutical ingredient Liquid, not in contact.

Die Betätigungshandhabe 20 weist einen ringförmigen Sicherungsfortsatz 22 auf, der als Zylindermantel nach unten abragt und in der in Fig. 1 dargestellten, oberen Endposition der Pumpeinheit den Aufnahmeteil 2 so weit axial überragt, dass er den Bereich der Rastprofilierungen 23, 24 überlappt. Der Abstand der Außenseite des Aufnahmeteils zur Innenwandung des Schutzfortsatzes 22 ist vorzugsweise geringer als die radiale Erstreckung der Rastprofilierungen 23, 24, so dass der starre, ringförmige Schutzfortsatz 22 einen Schutz gegen ein Lösen der Rastprofilierungen 23, 24 und damit eine Abzugsicherung für den Pumpgehäuseteil 8 bildet.The actuating handle 20 has an annular securing extension 22, which projects downwards as a cylinder jacket and in which in FIG. 1 shown, upper end position of the pump unit, the receiving part 2 protrudes axially so far that it covers the area of the locking profiles 23, 24 overlaps. The distance from the outside of the receiving part to the inner wall the protective extension 22 is preferably less than the radial Extension of the locking profiles 23, 24 so that the rigid, annular Protective extension 22 a protection against loosening the locking profiles 23, 24 and thus a trigger protection for the pump housing part 8 forms.

Da der Verschlussdeckel 1 in Verbindung mit der zuvor beschriebenen Pumpvorrichtung ein als Medienspeicher dienendes Behältnis dicht abschließt, muss bei entsprechenden Pumpvorgängen ein Druckausgleich erfolgen, um die Funktion der Pumpvorrichtung nicht zu beeinträchtigen. Beim dargestellten Ausführungsbeispiel ist hierzu eine Druckausgleichsvorrichtung 25, 26, D vorgesehen, die in dem Verschlussdeckel 1 integriert ist. Die Druckausgleichsvorrichtung weist zum einen eine sich zur Außenseite hin stark verjüngende, als Druckausgleichsöffnung dienende Düsenbohrung D auf, deren engster Durchmesser vorzugsweise 0,2mm bis 0,3mm nicht übersteigt. Hierdurch wird ein Gasaustausch gewährleistet, ein Flüssigkeitsverlust hingegen ist aufgrund der äußerst kleinen Düsenbohrung D minimiert. Damit ergibt sich eine reduzierte Verdunstung. Die reduzierte Verdunstung ist insbesondere vorteilhaft für die in Fig. 1 zusätzlich vorgesehene Filteranordnung 25. Die Filteranordnung 25 weist ein nicht näher bezeichnetes Aufnahmegehäuse für einen membranförmigen Filter 26 auf. Das Aufnahmegehäuse ist in eine korrespondierende Aufnahme des Verschlussdeckels 1 eingesetzt und vorzugsweise in diese eingeklebt oder in anderer Art und Weise fest mit dieser verbunden. Der membranförmige Filter 26 ist bei der dargestellten Ausführungsform von dem Aufnahmegehäuse umspritzt und somit in diesem integriert. Alternativ ist es auch möglich, den membranförmigen Filter 26 auf einen oberen Stirnrand des Aufnahmegehäuses aufzulaminieren. Der membranförmige Filter stellt vorzugsweise eine PP/PTFE-Membran oder eine TPE/PES-Membran dar. Der Filter 26 dient dazu, eine Kontaminierung des in dem Medienspeicher befindlichen Mediums zu vermeiden, indem die durch die Düsenbohrung D bei einem entsprechenden Pumpvorgang als Druckausgleich angesaugte Atmosphärenluft durch die entsprechende Membran gereinigt wird. Ein Wasser- oder Feuchtigkeitseintritt wird durch die Filteranordnung 25 vermieden.Since the cover 1 in connection with the previously described Pump device tightly seals a container serving as a media store, pressure must be equalized for the corresponding pumping processes take place so as not to impair the function of the pumping device. In the illustrated embodiment, this is a pressure compensation device 25, 26, D provided in the sealing cover 1 is integrated. The pressure compensation device has one strongly tapering towards the outside, serving as a pressure compensation opening Nozzle bore D, the narrowest diameter of which is preferred Does not exceed 0.2mm to 0.3mm. This is a gas exchange guaranteed, however, a loss of fluid is due to the extreme small nozzle bore D minimized. This results in a reduced Evaporation. The reduced evaporation is particularly advantageous for the filter arrangement 25 additionally provided in FIG. 1. The filter arrangement 25 has a housing for unspecified a membrane-shaped filter 26. The housing is in one Corresponding receptacle of the cover 1 used and preferably glued into it or firmly attached in some other way this connected. The membrane-shaped filter 26 is in the illustrated Embodiment molded from the receiving housing and thus in this integrated. Alternatively, it is also possible to use the membrane-shaped one Laminate filter 26 on an upper end edge of the receiving housing. The membrane-shaped filter is preferably a PP / PTFE membrane or a TPE / PES membrane. The filter 26 serves to contamination of the medium in the media store to avoid by the through the nozzle bore D at a corresponding Pumping process as pressure equalization of atmospheric air drawn in is cleaned by the appropriate membrane. A water or Ingress of moisture is avoided by the filter arrangement 25.

Nachfolgend wird die Funktion der in Fig. 1 dargestellten Dosiervorrichtung beschrieben. Das durch den Ventilkolben 10 in Verbindung mit der Dosierlippe 12 und der Dosierstrecke 13 gebildete Einlassventil arbeitet bei einem manuellen Betätigen der Betätigungshandhabe 20 als Schieber, indem der äußere Pumpgehäuseteil 8 zusammen mit der Pumpeinheit 9 bis 11 nach unten bewegt wird. Durch die Tatsache, dass die Dosierlippe 12 bei einem kompletten Hub der Pumpeinheit nach unten unterhalb der Dosierstrecke 13 und damit unterhalb des stufenförmigen Absatzes im Austragkanal 6 ins Freie läuft, wird ein sogenanntes Priming ermöglicht. Das bedeutet, dass in dem durch die Auslasskammer 17, dem Verdrängerraum 14 und dem Ringraum zwischen dem inneren Ventilkolben 10 und dem äußeren Verdrängerkolben 11 definierten Pumpraum der Pumpvorrichtung befindliche Luft bei einer Hubbewegung der Pumpeinheit nach unten in den Austragkanal 6 und damit in den Ansaugstutzen 7 und in den Medienspeicher entweichen kann. Beim anschließenden Rückhub erfolgt die entsprechende Ansaugung des flüssigen Mediums. Aufgrund des äußerst geringen Totraumvolumens innerhalb des als Pumpkammer dienenden Pumpraumes der Pumpvorrichtung genügt vorzugsweise bereits ein einziger Hub als Priming, um eine ausreichende Ansaugung des auszubringenden Mediums in der Pumpkammer zu erzielen. Die Länge des Hubs der Dosierlippe 12 entlang der Dosierstrecke 13 definiert das Dosiervolumen. Die definierte, und vom übrigen Austragkanal 6 verjüngt abgestufte Dosierstrecke 13 in Verbindung mit dem als Schieber nach unten ins Freie laufenden Ventilkolben 10 ermöglicht auch nach dem Abschluss des Primings, d.h. nach der vollständigen Befüllung des gesamten Mediumweges im Austragkanal 6 sowie in der Pump- oder Dosierkammer der Pumpvorrichtung eine besonders exakte und zuverlässige Dosierung.The following is the function of the metering device shown in FIG. 1 described. That by the valve piston 10 in connection with the Dosing lip 12 and the metering section 13 formed inlet valve works with manual actuation of the actuation handle 20 as a slide, by the outer pump housing part 8 together with the pump unit 9 to 11 is moved down. Due to the fact that the dosing lip 12 with a complete stroke of the pump unit down below the metering section 13 and thus below the step-shaped Paragraph in the discharge channel 6 runs outside, a so-called priming allows. That means that through the outlet chamber 17, the displacement space 14 and the annular space between the inner Valve piston 10 and the outer displacement piston 11 defined Pump space of the pump device air during a lifting movement the pump unit down into the discharge channel 6 and thus in the intake port 7 and escape into the media storage. The corresponding suction takes place during the subsequent return stroke of the liquid medium. Due to the extremely small dead space volume within the pump chamber serving as the pump chamber A pumping device is preferably sufficient as a priming stroke, to ensure sufficient suction of the medium to be dispensed to achieve in the pumping chamber. The length of the stroke of the dosing lip 12 along the metering section 13 defines the metering volume. The defined, and from the rest of the discharge channel 6 tapered metering section 13 in Connection with the valve piston running downwards as a slide 10 enables even after priming is complete, i.e. to the complete filling of the entire medium path in the discharge channel 6 and one in the pumping or metering chamber of the pumping device particularly precise and reliable dosing.

Ein Austragvorgang erfolgt, sobald der Flüssigkeitsdruck in der Pumpkammer, d.h. insbesondere im oberen Bereich der Auslasskammer 17, der auf das kolbenförmige Auslassventil 16 wirkt, den durch die Druckfederanordnung aufgebrachten Gegendruck übersteigt. Der Flüssigkeitsdruck drückt dann das Auslassventil 16 gegen die Druckkraft der Druckfederanordnung nach unten, wodurch über die Auslassöffnung 18 der entsprechende Austragvorgang des Mediums erfolgt. Die Auslassöffnung 18 ist vorzugsweise düsenförmig gestaltet, um eine Zerstäubung des ausgebrachten Mediums zu bewirken. Selbstverständlich wird vor einem entsprechenden Austragvorgang die Schutzkappe 19 entfernt.A discharge process takes place as soon as the liquid pressure in the pump chamber, i.e. especially in the upper area of the outlet chamber 17, which acts on the piston-shaped outlet valve 16, that by the compression spring arrangement applied back pressure exceeds. The fluid pressure then presses the exhaust valve 16 against the pressing force of the Compression spring arrangement downwards, whereby via the outlet opening 18th the corresponding discharge process of the medium takes place. The outlet opening 18 is preferably nozzle-shaped for atomization of the applied medium. Of course, before a corresponding discharge process, the protective cap 19 is removed.

Die in Fig. 1 dargestellte Dosiervorrichtung besteht aus wenigen Kunststoffbauteilen, vorliegend aus insgesamt lediglich sechs Kunststoffbauteilen. Ein erstes Kunststoffbauteil stellt der Verschlussdeckel 1 in Verbindung mit dem Aufnahmeteil 2 und dem inneren Pumpgehäuseteil 3 dar. Das zweite Kunststoffbauteil wird durch den äußeren Pumpgehäuseteil 8 gebildet. Das dritte Kunststoffbauteil ist die Pumpkolbeneinheit 9 bis 11. Das vierte Kunststoffbauteil ist das kolbenförmige Auslassventil 16. Das fünfte Kunststoffbauteil ist die mit den Fingerauflagen versehene Betätigungshandhabe 20 und das letzte Kunststoffbauteil ist die Schutzkappe 19. Zur Montage der Dosiervorrichtung wird zunächst das kolbenförmige Auslassventil 16 gemeinsam mit der dieses beaufschlagenden Druckfederanordnung in die Pumpkolbeneinheit 9 eingesetzt und anschließend die Pumpkolbeneinheit 9 gemeinsam mit dem Auslassventil 16 ins Innere des äußeren Pumpgehäuseteiles 8 eingerastet, wodurch eine obere Stirnfläche des Auslassventils 16 gegen den korrespondierenden Ventilsitz im Bereich der Auslassöffnung 18 gepresst wird. Anschließend wird der äußere Pumpgehäuseteil 8 zusammen mit der Pumpkolbeneinheit 9 bis 11 in das feststehende Kunststoffbauteil axial eingeschoben, wodurch die Verrastung und axiale Sicherung im Bereich der Rastprofilierungen 23, 24 erfolgt. Nun wird die Betätigungshandhabe 20 axial von oben her auf den äußeren Pumpgehäuseteil 8 aufgerastet, wodurch die Rastverbindung und Axialsicherung zwischen Pumpgehäuseteil 8 und Aufnahmeteil 2 des Verschlussdeckels 1 überdeckt und gesichert ist. In den Verschlussdeckel 1 wird die Filteranordnung 25 wie auch die umlaufende Dichtung eingesetzt. Anschließend kann der Verschlussdeckel 1 auf einen entsprechenden Medienspeicher dicht aufgesetzt werden. Vor dem axialen Aufsetzen des äußeren Pumpgehäuseteils 8 auf den Verschlussdeckel 1 wurde die Pumpfederanordnung 15 eingefügt. The dosing device shown in Fig. 1 consists of a few plastic components, in the present case from a total of only six plastic components. The cover 1 connects a first plastic component with the receiving part 2 and the inner pump housing part 3 The second plastic component is through the outer pump housing part 8 formed. The third plastic component is the pump piston unit 9 to 11. The fourth plastic component is the piston-shaped outlet valve 16. The fifth plastic component is the one with the finger rests Actuating handle 20 and the last plastic component is the Protective cap 19. To mount the dosing device, first of all piston-shaped outlet valve 16 together with that acting on it Compression spring arrangement used in the pump piston unit 9 and then the pump piston unit 9 together with the outlet valve 16 snapped into the interior of the outer pump housing part 8, whereby an upper end face of the exhaust valve 16 against the corresponding Valve seat pressed in the area of the outlet opening 18 becomes. Then the outer pump housing part 8 together with the pump piston unit 9 to 11 in the fixed plastic component axially inserted, whereby the locking and axial securing in Area of the locking profiles 23, 24 takes place. Now the operating handle 20 axially from above onto the outer pump housing part 8 snapped on, causing the snap connection and axial securing between Pump housing part 8 and receiving part 2 of the cover 1 covered and is secured. In the cover 1, the filter assembly 25 as well as the circumferential seal. Subsequently can the cover 1 on a corresponding media storage be placed tightly. Before axially fitting the outer one Pump housing part 8 on the cover 1 was the pump spring arrangement 15 inserted.

Bei der Ausführungsform nach den Fig. 2 bis 4 entspricht eine Pumpvorrichtung P der zuvor anhand der Fig. 1 beschriebenen Pumpvorrichtung, so dass für eine nähere Erläuterung der Pumpvorrichtung P auf die ausführliche Beschreibung zur Fig. 1 verwiesen wird. Funktionsgleiche Teile sind mit gleichem Bezugszeichen gegenüber der Ausführungsform nach Fig. 1, jedoch unter Hinzufügung des Buchstabens "a", versehen. Nachfolgend wird lediglich auf die Unterschiede der Pumpvorrichtung P zu der Pumpvorrichtung in Fig. 1 eingegangen. Zudem wird die übrige Dosiervorrichtung, in der die Pumpvorrichtung P integriert ist, beschrieben. Wesentlicher Unterschied zu der Ausführungsform nach Fig. 1 ist es, dass die Pumpvorrichtung P als separate Baueinheit getrennt von der Dosiervorrichtung herstellbar und lösbar mit dieser verbunden ist. Bei der Ausführungsform nach den Fig. 2 bis 4 ist der Aufnahmeteil 2a zwar ebenfalls einstückig mit dem inneren Pumpgehäuseteil gestaltet. Der innere Pumpgehäuseteil, der von der Pumpfederanordnung 15a umgeben ist, stellt jedoch gemeinsam mit dem Aufnahmeteil 2a eine von einem Verschlussdeckel 28 für einen Behälterbecher B getrennte Einheit dar. Der Verschlussdeckel 28 ist hülsen- oder ringartig gestaltet und weist eine Aufnahmevertiefung auf, in die der Aufnahmeteil 2a der Pumpvorrichtung P mittels eines umlaufenden Ringflansches einrastbar ist. Hierzu ist ein Rand der Aufnahmevertiefung mit einer ringförmigen Raststelle versehen, die in den Fig. 2 und 3 erkennbar, jedoch nicht näher bezeichnet ist. Ein dichter und spielfreier Sitz des Ringflansches und damit des Aufnahmeteils 2a in der Aufnahmevertiefung des Verschlussdeckels 28 wird durch eine Ringdichtung 29 gewährleistet, die unterhalb des Ringflansches positioniert ist und auf einem Tellerrand der ringförmigen Aufnahmevertiefung des Verschlussdeckels 28 aufliegt. Der Verschlussdeckel 28 ist als Kunststoffteil gestaltet und mit einem oberen Randbereich des Behälterbechers B verrastet oder durch Krimpen fest mit diesem verbunden. In the embodiment according to FIGS. 2 to 4, a pump device corresponds P of the pump device previously described with reference to FIG. 1, so that for a more detailed explanation of the pump device P on the detailed description of Fig. 1 is referenced. functionally identical Parts have the same reference numerals compared to the embodiment 1, but with the addition of the letter "a", Mistake. The following is only the differences of the pumping device P entered into the pumping device in FIG. 1. In addition, the remaining metering device, in which the pump device P is integrated is described. Significant difference from the embodiment 1 is that the pump device P as a separate unit Can be manufactured separately from the dosing device and detachable with it connected is. 2 to 4 is the Receiving part 2a also integrally with the inner pump housing part designed. The inner pump housing part, that of the pump spring assembly 15a is surrounded, however, together with the receiving part 2a one of a closure lid 28 for a container cup B is a separate unit. The closure cover 28 is sleeve or designed like a ring and has a recess into which the Receiving part 2a of the pump device P by means of a rotating one Ring flange is clickable. For this is an edge of the well provided with an annular locking point, which in FIGS. 2 and 3 recognizable, but is not specified. A dense and game-free Seat of the ring flange and thus of the receiving part 2a in the receiving recess the cover 28 is through an annular seal 29 guaranteed, which is positioned below the ring flange and on a plate rim of the ring-shaped receiving recess of the closure cover 28 rests. The closure cover 28 is a plastic part designed and with an upper edge area of the container cup B locked or firmly connected to it by crimping.

Der Verschlussdeckel 28 ist unterhalb des Tellerrandes der Aufnahmevertiefung mit einem einstückig angeformten Profilring 27 versehen, der als Fortsatz zu dem Verschlussdeckel 28 in das Innere des Behälterbechers B hineinragt. Wie anhand der Fig. 4 erkennbar ist, ist der Profilring mit mehreren parallel und in Abstand zueinander angeordneten Ringrippen 32 versehen, die radial zu einer Mittellängsachse des Verschlussdeckels 28 nach außen abragen. Zudem sind mehrere, über die Höhe des Profilringes 27 erstreckte, vertikal ausgerichtete Rippenstege vorgesehen, die in den Fig. 2 bis 4 nicht näher bezeichnet sind. Diese Rippenstege sind über den Umfang des Profilringes 27 verteilt angeordnet. Die Schnittdarstellung in den Fig. 2 und 3 ist jeweils durch zwei solche Rippenstege hindurchgezogen.The closure cover 28 is below the plate rim of the receiving recess provided with an integrally molded profile ring 27, the as an extension to the closure lid 28 into the interior of the container cup B protrudes. As can be seen from FIG. 4, the profile ring with several parallel and spaced ring ribs 32 provided radially to a central longitudinal axis of the closure cover 28 protrude outwards. There are also several about Height of the profile ring 27 extended, vertically aligned ribs provided that are not shown in FIGS. 2 to 4. This Ribs are distributed over the circumference of the profile ring 27. The sectional view in FIGS. 2 and 3 is in each case by two Ribs pulled through.

Eine Betätigungshandhabe 20a für die Pumpvorrichtung P entspricht bezüglich ihrer Pumpbetätigungsfunktion der Betätigungshandhabe 20 nach Fig. 1. Die Betätigungshandhabe 20a ist zusätzlich als becherförmiger Zylindermantel gestaltet, der den Behälterbecher B über mehr als die Hälfte seiner Höhe axial übergreift. Der Außenmantel des Behälterbechers B und eine Innenwandung eines unteren Randbereiches des Zylindermantels 22a der Betätigungshandhabe 20a sind mit korrespondierenden Anschlagprofilierungen 30, 31 versehen, die einander in axialer Richtung formschlüssig hintergreifen. Hierdurch wird für die Betätigungshandhabe 20a eine Axialsicherung gewährleistet. Da die Betätigungshandhabe 20a - wie die Betätigungshandhabe 20 nach Fig. 1 - auf den äußeren Pumpgehäuseteil der Pumpvorrichtung P aufgerastet ist, wird durch die Anschlagprofilierungen 30 und 31 gleichzeitig die Hubbegrenzung der Pumpvorrichtung P geschaffen, die die notwendige Rückhaltekraft gegen die Druckkraft der Pumpfederanordnung 15 bietet.An actuating handle 20a for the pump device P corresponds with regard to their pump actuation function of the actuation handle 20 1. The actuating handle 20a is also in the form of a cup Designed cylinder jacket that the container cup B over more than axially overlaps half of its height. The outer shell of the container cup B and an inner wall of a lower edge area of the Cylinder jacket 22a of the actuating handle 20a are corresponding Stop profiles 30, 31 provided that each other in the axial Grip in the positive direction. This will make for the actuation handle 20a ensures axial locking. Because the operating handle 20a - like the actuating handle 20 according to FIG. 1 - snapped onto the outer pump housing part of the pump device P. is, the stop profiles 30 and 31 at the same time Stroke limitation of the pump device P created the necessary Retaining force against the pressure force of the pump spring arrangement 15 offers.

Die Ausführungsform der Fig. 2 und die Darstellung in Fig. 3 sind geringfügig modifiziert. So ist bei der Ausführungsform nach Fig. 3 in dem Aufnahmeteil 2a der Pumpvorrichtung P eine Aufnahme für den Einsatz einer Filteranordnung vorgesehen, wie sie aus Fig. 1 ersichtlich ist. Falls der Verschlussdeckel 28 daher einen dichten Abschluss des Behälterbechers B bietet, kann der Behälterbecher B direkt als Medienspeicher für eine entsprechende Flüssigkeit dienen, da trotz des formstabilen Behälterbechers B durch die mit der Düsenbohrung versehene Aufnahme, gegebenenfalls mit zusätzlichem Einsatz einer Filteranordnung, ein ausreichender Druckausgleich während des Betriebs der Pumpvorrichtung P gegeben ist.The embodiment of FIG. 2 and the illustration in FIG. 3 are minor modified. So in the embodiment of FIG. 3 in the Receiving part 2a of the pump device P a receptacle for use a filter arrangement is provided, as can be seen from FIG. 1. If the cover 28 is therefore a tight seal of the container cup B offers, the container cup B can directly as a media storage serve for a corresponding liquid, because despite the dimensionally stable Container cup B through the one provided with the nozzle bore Recording, possibly with the additional use of a filter arrangement, adequate pressure equalization during the operation of the Pump device P is given.

Bei der Darstellung nach Fig. 2 hingegen ist eine derartige Druckausgleichsvorrichtung für den Behälterbecher B nicht gegeben. Stattdessen ist in dem Behälterbecher B ein Medienspeicher S mit flexibler Wandung vorgesehen. Vorliegend ist der Medienspeicher S als aus einer ein- oder mehrlagigen Folie hergestellter Folienbeutel gestaltet, der umlaufend dicht mit dem Profilring 27 verbunden ist. Vorzugsweise ist der Folienbeutel mit dem Profilring 27 verschweißt, wobei die Profilierungen des Profilringes 27 die Oberfläche für eine dichte Verschweißung des Folienbeutels mit dem Profilring 27 vergrößern. Hierdurch ist eine große Sicherheit der Schweißverbindung wie auch des dichten Abschlusses des Folienbeutels mit dem Profilring 27 gewährleistet. Der als Medienspeicher S dienende Folienbeutel ist somit lediglich zur Pumpvorrichtung P hin offen, wodurch die gleiche Pump- und Austragfunktion erzielbar ist wie bei der Ausführungsform nach Fig. 1. Mit jedem Austragvorgang verringert sich das Volumen des Medienspeichers S, wodurch der Folienbeutel sich zusammenzieht. Die flexible Wandung des Folienbeutels ermöglicht somit den Druck- und Volumenausgleich innerhalb des Medienspeichers S bei entsprechenden Austragsvorgängen der Pumpvorrichtung P.2, however, is such a pressure compensation device not given for container cup B. Instead is a media storage S with flexible wall in the container cup B. intended. In the present case, the media store S is made up of one single or multi-layer film made of foil bags, the circumferential is tightly connected to the profile ring 27. Preferably, the Foil bag welded to the profile ring 27, the profiles of the profile ring 27, the surface for a tight welding of Enlarge the foil bag with the profile ring 27. This is a big one Safety of the welded joint as well as the tight seal of the foil bag with the profile ring 27 guaranteed. The one as media storage S serving foil bag is thus only for the pumping device P open, whereby the same pump and discharge function can be achieved is like in the embodiment according to FIG. 1. With each discharge process the volume of the media storage S decreases, which causes the film bag contracts. The flexible wall of the foil bag thus enables pressure and volume compensation within the media storage S with corresponding discharge processes of the pump device P.

Bei der Ausführungsform nach den Fig. 5 und 6 ist eine Dosiervorrichtung dargestellt, deren Pumpvorrichtung mit der Pumpvorrichtung nach Fig. 1 übereinstimmt. Funktionsgleiche Teile der Dosiervorrichtung sind mit den gleichen Bezugszeichen versehen wie bei der Ausführungsform nach Fig. 1, jedoch unter Hinzufügung des Buchstabens "b". Bezüglich einer näheren Erläuterung wird auf die Beschreibung zur Fig. 1 verwiesen. Nachfolgend wird lediglich auf die in den Fig. 5 und 6 dargestellten Unterschiede ausführlich eingegangen. Wesentlicher Unterschied ist es, dass der Aufnahmeteil 2b ähnlich wie bei der Ausführungsform nach Fig. 2 bis 4 separat zu einem Verschlussdeckel 1b gestaltet ist. Der Verschlussdeckel 1b ist als Krimpdeckel ausgeführt, der auf einen korrespondierenden Behälterhals eines Medienspeichers aufsetzbar ist. Das Aufsetzen des Aufnahmeteiles 2b gemeinsam mit dem als Krimpdeckel gestalteten Verschlussdeckel 1 b erfolgt unter Zwischenfügung einer nicht näher bezeichneten, umlaufenden elastischen Dichtung. Die Betätigungshandhabe 20b weist einen becherförmigen Schutzfortsatz 22b auf, der bis über den als Krimpdeckel ausgeführten Verschlussdeckel 1b nach unten gezogen ist, so dass der Schutzfortsatz 22b einem Krimpbereich des als Krimpdeckel gestalteten Verschlussdeckels 1b axial überdeckt. Dadurch wird ein Lösen des Verschlussdeckels 1b von einem entsprechenden Behälterhals eines Medienspeichers vermieden, sobald die Betätigungshandhabe 20b auf den äußeren Pumpgehäuseteil 8b der Pumpvorrichtung gemäß der Darstellung und Beschreibung nach Fig. 1 aufgerastet ist. Da der Schutzfortsatz den Krimpbereich des Verschlussdeckels 1b überdeckt, wird die separat hergestellte Betätigungshandhabe erst dann auf dem Pumpgehäuseteil 8b montiert, wenn der Verschlussdeckel 1b auf einen entsprechenden Behälterhals eines Medienspeichers aufgekrimpt ist. Denn mit bereits aufgerasteter Betätigungshandhabe 22b wäre kein Krimpvorgang mehr möglich.5 and 6 is a metering device shown, the pumping device with the pumping device after Fig. 1 matches. Functionally identical parts of the dosing device are provided with the same reference numerals as in the embodiment 1, but with the addition of the letter "b". In terms of a more detailed explanation is given in the description of FIG. 1 directed. In the following, reference will only be made to those shown in FIGS. 5 and 6 Differences discussed in detail. Significant difference is that the receiving part 2b is similar to the embodiment 2 to 4 separately to a cover 1b is designed. The closure cover 1b is designed as a crimp cover, on a corresponding container neck of a media store is attachable. The mounting of the receiving part 2b together with the cover 1 b, which is designed as a crimp cover, is made with interposition an unspecified, circumferential elastic Poetry. The actuating handle 20b has a cup-shaped Protective extension 22b, which extends beyond the crimped cover Cap 1b is pulled down so that the protective extension 22b a crimping area of the closing cover designed as a crimping cover 1b axially covered. This will loosen the cover 1b from a corresponding container neck of a media store avoided as soon as the operating handle 20b on the outer Pump housing part 8b of the pumping device according to the illustration and Description according to Fig. 1 is snapped on. Since the protective extension Covered crimp area of the closure cover 1b, which is separately manufactured operating handle only then on the pump housing part 8b mounted when the cover 1b on a corresponding Container neck of a media store is crimped on. Because with already actuated handle 22b would no longer be a crimping process possible.

Claims (11)

Dosiervorrichtung mit einem Medienspeicher (S) sowie mit einer Pumpvorrichtung (P) zum Dosieren und Ausbringen eines in dem Medienspeicher bevorrateten Mediums, sowie mit dem Medienspeicher zugeordneten Druckausgleichsmitteln, dadurch gekennzeichnet, dass der Medienspeicher (S) mit druckempfindlichen, flexiblen Wandungen versehen ist.Dosing device with a media store (S) and with a pump device (P) for dosing and dispensing a medium stored in the media store, as well as with pressure compensation means assigned to the media store, characterized in that the media store (S) is provided with pressure-sensitive, flexible walls. Dosiervorrichtung nach dem Oberbegriff des Anspruchs 1, dadurch gekennzeichnet, dass dem Medienspeicher wenigstens eine zu einer Atmosphäre hin offene Druckausgleichsöffnung (D) zugeordnet ist, die eine sich zur Atmosphäre hin verjüngende Düsenform mit einem minimalen Durchmesser von 0,1mm bis 0,3mm aufweist.Dosing device according to the preamble of claim 1, characterized in that the media store is assigned at least one pressure equalization opening (D) which is open to an atmosphere and has a nozzle shape which tapers towards the atmosphere and has a minimum diameter of 0.1 mm to 0.3 mm. Dosiervorrichtung nach dem Oberbegriff des Anspruchs 1 oder nach Anspruch 2, dadurch gekennzeichnet, dass eine durch eine Filteranordnung (25, 25b) verschlossene Druckausgleichsöffnung (D) zur Atmosphäre hin vorgesehen ist, wobei die Filteranordnung (25, 25b) kontaminierende Bestandteile der Atmosphärenluft zurückhält.Dosing device according to the preamble of claim 1 or according to claim 2, characterized in that a pressure equalization opening (D) closed by a filter arrangement (25, 25b) to the atmosphere is provided, the filter arrangement (25, 25b) retaining contaminating components of the atmospheric air. Dosiervorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Filteranordnung (25, 25b) ein Filtergehäuse aufweist, das wenigstens eine Filtermembran (26) umfasst, und das formoder kraft- oder stoffschlüssig in die korrespondierend gestaltete Druckausgleichsöffnung (D) eingepasst ist.Dosing device according to claim 3, characterized in that the filter arrangement (25, 25b) has a filter housing which comprises at least one filter membrane (26), and which is fitted into the correspondingly designed pressure compensation opening (D) in a form-fitting or force-fitting or material-locking manner. Dosiervorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Filtermembran (26) auf das Filtergehäuse auflaminiert oder von dem Filtergehäuse umspritzt ist. Dosing device according to claim 4, characterized in that the filter membrane (26) is laminated onto the filter housing or is encapsulated by the filter housing. Dosiervorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Druckausgleichsöffnung (D) und/oder die Filteranordnung (25) in einem Verschlussdeckel (1) des Medienspeichers integriert sind.Dosing device according to claim 2 or 3, characterized in that the pressure compensation opening (D) and / or the filter arrangement (25) are integrated in a closure cover (1) of the media store. Dosiervorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Druckausgleichsöffnung (D) und/oder die Filteranordnung (25) exzentrisch zu einer Mittellängsachse des Verschlussdeckels (1) positioniert sind.Dosing device according to claim 6, characterized in that the pressure compensation opening (D) and / or the filter arrangement (25) are positioned eccentrically to a central longitudinal axis of the closure cover (1). Dosiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Medienspeicher (S) aus einem ein- oder mehrschichtigen Folienmaterial besteht, das mit einem der Pumpenvorrichtung (P) zugeordneten Profilring (27) dicht verbunden ist.Dosing device according to claim 1, characterized in that the media store (S) consists of a single or multilayer film material which is tightly connected to a profile ring (27) associated with the pump device (P). Dosiervorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der Medienspeicher (S) an einer Ringaußenseite angeschweißt ist und die Pumpvorrichtung (P) zu dem Profilring (27) so positioniert ist ist, dass ihr saugseitiger Medienpfad durch eine Ringmitte in den Medienspeicher (S) hindurchführt.Dosing device according to claim 8, characterized in that the media store (S) is welded to an outside of the ring and the pump device (P) is positioned to the profile ring (27) so that its suction-side media path leads through a middle of the ring into the media store (S) , Dosiervorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Pumpvorrichtung (P) als saugseitigen Medienpfad einen Ansaugstutzen aufweist, dessen medienspeicherseitige Ansaugöffnung sich im Bereich der Ringmitte befindet.Dosing device according to claim 9, characterized in that the pump device (P) has a suction connection as the suction-side media path, the suction opening of the media storage side being located in the area of the ring center. Dosiervorrichtung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass der Profilring (27) in dem Bereich der Schweißverbindung mit dem Medienspeicher (S) eine Rippenstruktur (32) aufweist.Dosing device according to one of claims 8 to 10, characterized in that the profile ring (27) has a rib structure (32) in the area of the welded connection to the media reservoir (S).
EP02008876A 2001-09-21 2002-04-20 Dosing device with a reservoir and a pump Expired - Lifetime EP1295644B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CNB028231538A CN1304121C (en) 2001-09-21 2002-09-17 Dosing device with a medium container and a pump mechanism
US10/490,529 US20050127107A1 (en) 2001-09-21 2002-09-17 Dosing device with a medium reservoir and a pump device
PL367351A PL201051B1 (en) 2001-09-21 2002-09-17 Dosing device with a medium reservoir and a pump device
CA002461006A CA2461006C (en) 2001-09-21 2002-09-17 Dosing device with a medium reservoir and a pump device
BRPI0212718-0A BR0212718B1 (en) 2001-09-21 2002-09-17 dosing device with a media reservoir as well as with a pumping device.
JP2003530431A JP2005503300A (en) 2001-09-21 2002-09-17 Administration device with medium reservoir with pump device
PCT/EP2002/010420 WO2003026804A1 (en) 2001-09-21 2002-09-17 Dosing device with a medium reservoir and a pump device
ARP020103530A AR036557A1 (en) 2001-09-21 2002-09-19 DOSING DEVICE WITH FLUID CONTAINER AND PUMP DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10148899 2001-09-21
DE10148899 2001-09-21

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EP02008877A Expired - Lifetime EP1295645B1 (en) 2001-09-21 2002-04-20 Metering device provided with a pump
EP02008876A Expired - Lifetime EP1295644B1 (en) 2001-09-21 2002-04-20 Dosing device with a reservoir and a pump
EP02008878A Expired - Lifetime EP1295646B1 (en) 2001-09-21 2002-04-20 Dosing device with a fluid container and pump therefor

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EP02008878A Expired - Lifetime EP1295646B1 (en) 2001-09-21 2002-04-20 Dosing device with a fluid container and pump therefor

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AR (3) AR036555A1 (en)
AT (3) ATE416848T1 (en)
DE (3) DE50212754D1 (en)
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EP1878507B1 (en) 2006-07-10 2017-09-06 Albéa le Tréport Spraying device and use of same
EP3427839A1 (en) 2017-07-13 2019-01-16 Aptar Radolfzell GmbH Liquid dispenser with ventilated bottle and applicator head for same

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WO2007087254A2 (en) 2006-01-25 2007-08-02 Radius International Limited Partnership Catheter
EP1878507B1 (en) 2006-07-10 2017-09-06 Albéa le Tréport Spraying device and use of same
EP1878507B2 (en) 2006-07-10 2023-08-30 Albéa le Tréport Spraying device and use of same
DE102009040783A1 (en) * 2009-09-09 2011-03-17 F. Holzer Gmbh Metering device for metered dispensing of liquid preparations, method for filling and use of a metering device according to the invention
DE102009040783A8 (en) * 2009-09-09 2011-07-21 F. Holzer GmbH, 66386 Metering device for metered dispensing of liquid preparations, method for filling and use of a metering device according to the invention
DE102009040783B4 (en) * 2009-09-09 2012-04-26 F. Holzer Gmbh Metering device for metered dispensing of liquid preparations, method for filling and use of a metering device according to the invention
EP3427839A1 (en) 2017-07-13 2019-01-16 Aptar Radolfzell GmbH Liquid dispenser with ventilated bottle and applicator head for same
WO2019011621A1 (en) 2017-07-13 2019-01-17 Aptar Radolfzell Gmbh Liquid dispenser with ventilated bottle and discharge head for this purpose

Also Published As

Publication number Publication date
EP1295646B1 (en) 2006-12-20
EP1295644B1 (en) 2008-12-10
EP1295646A1 (en) 2003-03-26
EP1295645B1 (en) 2008-09-10
ES2317962T3 (en) 2009-05-01
AR036556A1 (en) 2004-09-15
DE50212754D1 (en) 2008-10-23
AR036557A1 (en) 2004-09-15
ATE348664T1 (en) 2007-01-15
EP1295645A1 (en) 2003-03-26
ES2276868T3 (en) 2007-07-01
ATE416848T1 (en) 2008-12-15
ATE407745T1 (en) 2008-09-15
AR036555A1 (en) 2004-09-15
DE50213095D1 (en) 2009-01-22
DE50208993D1 (en) 2007-02-01

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