EP3162449B1 - Discharge head and dispenser with such a discharge head - Google Patents

Discharge head and dispenser with such a discharge head Download PDF

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Publication number
EP3162449B1
EP3162449B1 EP15191981.8A EP15191981A EP3162449B1 EP 3162449 B1 EP3162449 B1 EP 3162449B1 EP 15191981 A EP15191981 A EP 15191981A EP 3162449 B1 EP3162449 B1 EP 3162449B1
Authority
EP
European Patent Office
Prior art keywords
dosing
chamber
discharge head
deflectable
dosing chamber
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.)
Active
Application number
EP15191981.8A
Other languages
German (de)
French (fr)
Other versions
EP3162449A1 (en
Inventor
Tobias Baumann
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
Aptar Radolfzell GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aptar Radolfzell GmbH filed Critical Aptar Radolfzell GmbH
Priority to EP15191981.8A priority Critical patent/EP3162449B1/en
Priority to US15/336,211 priority patent/US10343825B2/en
Priority to KR1020160140762A priority patent/KR101913473B1/en
Priority to CN201610968668.4A priority patent/CN106925466B/en
Publication of EP3162449A1 publication Critical patent/EP3162449A1/en
Application granted granted Critical
Publication of EP3162449B1 publication Critical patent/EP3162449B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2068—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is lowered by the pressure of the contents and thereby opening the valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0078—Arrangements for separately storing several components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0068—Jars
    • A45D40/0075—Jars with dispensing means
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/24—Casings for two or more cosmetics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/1039—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being mechanically opened after a defined accumulation stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1064—Pump inlet and outlet valve elements integrally formed of a deformable material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1081—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping
    • B05B11/1083—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping in adjustable proportion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1081—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping
    • B05B11/1084—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping each liquid or other fluent material being pumped by a separate pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1081—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping
    • B05B11/1084—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping each liquid or other fluent material being pumped by a separate pump
    • B05B11/1085—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping each liquid or other fluent material being pumped by a separate pump the pumps being coaxial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0838—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3205—Separate rigid or semi-rigid containers joined to each other at their external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers

Definitions

  • the invention relates to a discharge head for mixing two starting media and for discharging the mixed liquid produced thereby.
  • a discharge head has a metering chamber which is delimited by metering chamber walls at a base of the discharge head and at a displacer.
  • the dispensing head further includes a first inlet through which a first of the two output media may flow into the dosing chamber and a second inlet through which a second of the two output media may flow into the dosing chamber.
  • the discharge head has an outlet through which the mixed liquid can be discharged from the metering chamber.
  • the displacer is manually movable relative to the base between a first end position and a second end position in an actuation direction so that the volume of the metering chamber is reduced upon displacement of the displacer from the first end position to the second end position and the mixed fluid is forced out through the outlet ,
  • Such a discharge head can thus be used to discharge a mixture of two liquids. Depending on the configuration, it allows the mixing ratio between the two liquids, which are mixed in the dosing chamber, to be set variably.
  • variable setting should be such that after filling the metering chamber with the first medium an adjustable amount of the second medium is added.
  • the introduction of the second output medium into the metering chamber can lead to liquid already flowing out through the outlet of the metering chamber.
  • the object of the invention is to allow the production of a mixed liquid in a convenient way, without this leading to unwanted liquid leakage.
  • document DE102010013329 A1 describes a discharge head according to the preamble of claim 1.
  • the metering chamber has a volume compensation device.
  • This volume compensation device has a metering chamber delimiting the deflectable Dosierhuntwandungsabêt, based on the first end position of the displacer relative to the base between a minimal position in which he the volume of the Dosing chamber not extended, and a maximum position in which it maximizes the volume of the metering chamber, is deflectable.
  • a discharge head which has a metering chamber with first and second inlet and outlet and whose Dosierhuntvolumen is reduced by the displacement of the displacer relative to the base, it is therefore provided that the volume of the metering regardless of the relative position of the displacer relative to the base variable is.
  • said volume compensation device is provided which is arranged either on the base side or on the displacer side and has the said metering chamber wall section which can be deflected relative to the base or the displacer.
  • This Dosierhuntwandungsabites can take the said minimum position. If this is the case, the metering chamber volume is not widened by the deflectable metering chamber wall section. Starting from the minimum position, it can be shifted to a maximum position, in which it leads to a maximum enlargement of the dosing chamber.
  • the use of the discharge head according to the invention is above all expedient for media in which it is provided that the predominant volume fraction is provided by the first medium and a smaller volume fraction by the second medium.
  • Such is useful, for example, in skin cream, which is mixed with a small amount of self-tanner.
  • the metering chamber prefferably has a volume of between 0.2 and 1 ml when the displacer is arranged relative to the base in the first end position and the wall section is arranged in its minimal position, while the can be achieved by displacing the Dosierhuntwandungsabêtes in the maximum position achievable additional volume between 0.05 and 0.3 ml.
  • the ratio between the volume of the metering chamber and the additional volume through the volume compensation device is between 3: 1 and 20: 1; preferably between 3: 1 and 10: 1.
  • the deflectable Dosierhuntwandungsabites may be formed by a formflexible wall.
  • the design of the deflectable Dosierhuntwandungsabiteses as formflexible wall is structurally relatively simple.
  • the wall is formed in such a design in the manner of a preferably elastic membrane. This can be formed by a separate component. It is also possible to form them integrally with surrounding wall regions of the metering chamber, in particular if a material deviating from the surrounding walls by means of multicomponent injection molding is selected for the membrane.
  • the deflectable Dosierhuntwandungsabites can also be formed by an inherently rigid displaceable wall portion, in particular by a wall portion in a compensation piston, which is arranged displaceably in a compensation cylinder of the metering chamber.
  • a rigid metering chamber wall section requires that the metering chamber wall section be displaceable as a whole.
  • the said possibility of a preferably spring-loaded compensation piston in a compensation cylinder is here a particularly advantageous arrangement, since it allows to make the walls of the compensation cylinder transparent and thereby make the position of the Dosierhuntwandungsabiteses visible from the outside. In this way, a user can recognize, for example, whether he has already added enough of the second medium after filling the metering chamber with the first medium.
  • the metering chamber can be connected to a first reservoir for the first output medium, wherein a pressure-dependent opening valve can be provided between the first reservoir and the metering chamber.
  • the first starting medium is preferably the main medium, which occupies the majority of the liquid to be discharged.
  • the connection of the metering chamber to the first reservoir with an intermediate pressure-dependent opening valve is achieved that during the return displacement of the displacer in its first end position (return stroke) this first output medium is sucked, for example, from an unvented reservoir bag or Schleppkolbenreservoir or by means of a riser.
  • the second starting medium can then be added subsequently.
  • a conveying device for introducing the second output medium into the metering chamber, a conveying device can be provided which can be actuated by means of an additional actuating handle.
  • the separate conveyor for the second output medium with a separate actuating handle allows to supply the desired amount of the second output medium of the metering chamber after filling the metering chamber with the first output medium.
  • the conveyor may have a feed pump with an inlet with inlet valve and an outlet with outlet valve.
  • the inlet of the feed pump may be connected to a second reservoir for the second output medium.
  • the outlet of the feed pump may be connected to the second inlet of the metering chamber.
  • the delivery device for delivery of the second output medium is thus configured as a pump, which sucks from a second reservoir and allows the delivery of the second output medium into the metering chamber through its outlet.
  • the conveyor may alternatively have a unidirectionally slidable in a delivery cylinder piston which is gradually displaced by means of the additional actuating handle.
  • a sawtooth coupling is provided between the auxiliary actuating handle and the piston, by which a movement of the piston is forced upon actuation of the auxiliary actuating handle and an increase in the spacing of the piston is made possible by the additional actuating handle at a provision of the actuating handle.
  • a piston is gradually shifted and promoted with each feed a volume of the second output medium in the metering chamber.
  • the piston includes the total amount of the second output medium in the delivery state. He is only slightly displaced with each actuation of the additional actuating handle and requires repeated application of the second output medium in the metering chamber after each stroke of a return stroke of the additional actuating handle.
  • a design suitable for this purpose provides that the additional actuating handle and the piston can also be displaced unidirectionally against each other.
  • the said sawtooth coupling is an expedient design for this purpose.
  • the sawtooth coupling leads when depressing the additional actuating handle to a common displacement with the piston.
  • By negative pressure and / or by non-positive or positive forces between the piston and the delivery cylinder causes the sawtooth coupling continues to jump during the return stroke of the additional actuating handle, so that in a repeated operation of the additional actuating handle, the starting point of the piston corresponds to the end position in the previous stroke ,
  • the conveyor may be designed to introduce a defined amount V of the second output medium with a single operation of the additional actuating handle.
  • the outlet of the metering chamber is assigned a pressure-dependent opening outlet valve.
  • This outlet valve, the delivery device for introducing the second output medium and the volume compensation device can be matched to one another such that the volume compensation device can accommodate at least the quantity V of the second output medium without the outlet valve being opened thereby, preferably at least the amount 3 ⁇ V, in particular preferably the amount 6 x V.
  • Said tuning ensures that at least one, but preferably a plurality of output by the actuation of the additional actuating handle in the metering chamber amount V of the second output medium can be received without liquid already exiting through the outlet of the metering chamber.
  • the pressures to be matched to each other which requires it to shift the wall portion of the volume compensation unit on the one hand and to open the exhaust valve.
  • the pressure required to displace the wall section should be less than that for opening the outlet valve until the deflectable wall section assumes its maximum position.
  • the deflectable Dosierhuntwandungsab mustard the volume compensation device may be provided on the displacer.
  • the displacer can be firmly connected to a discharge actuating handle.
  • the arrangement of the volume compensation unit and in particular the deflectable wall section on the displacer is structurally often easier than at the base.
  • the displacer is preferably directly the actuating handle.
  • embodiments are also conceivable in which a transmission is provided between the displacer and the actuating handle.
  • the deflectable Dosiertalkwandungsabites may be provided on the discharge actuating handle such that it is pressed by actuation of the discharge actuating handle in the direction of its maximum position or in the direction of its minimum position.
  • the arrangement of the Dosiertalkwandungsabiteses serves the predictability of the amount of liquid to be discharged.
  • the dosing chamber wall section is not always in the same position at the beginning of the discharge operation, depending on the second output medium previously attached. It is advantageous if, however, in the second end position of the displacer relative to the base, a defined position of the deflectable Dosiertalkwandungsabiteses is given. The remaining dead volume is thus constant.
  • the deflectable Dosiertalkwandungsabites can be arranged in the metering chamber such that it is pressed in the course of the actuation of the discharge actuating handle in the direction of its maximum position or in the direction of its minimum position.
  • the deflectable Dosiertalkwandungsabites formed by a formflexible wall be shaped so that it can be deflected by a force applied transversely to the direction of actuation, and be provided with the deflectable Dosiertalk cooperating portion in the metering chamber, deflected by the deflectable Dosiertalk upon displacement of the displacer becomes.
  • the deflectable Dosierhuntwandungsabites may be provided on the discharge actuating handle in the region of a finger support surface.
  • the invention further relates to a dispenser for mixing two starting media and discharging the mixed fluid produced thereby.
  • the dispenser has a first and a second reservoir for receiving the two output media. He also has a discharge head of the type described above.
  • Such a dispenser thus has not only the discharge head described above separately stored output media.
  • these starting media can be aspirated by riser or stored in aeration-free reservoirs with drag piston or flexible bag.
  • a preferred field of application are cosmetic lotions, in which case in particular the first starting medium constitutes the base portion of this lotion, while the second starting medium may represent an additional active ingredient.
  • the Fig. 1 and 2 show a first embodiment of the invention.
  • the dispensing head 110 has a dispensing actuating handle 64 and an auxiliary actuating handle 82.
  • the intended use of the dispenser 100 of Fig. 1 provides that initially from a previous discharge process already in Fig. 2 shown dosing chamber 40, which will be described below, is filled with the first output medium from the reservoir 12.
  • a second starting medium in a desired amount can be added via the additional actuating handle 82. If this metered addition is complete, the mixture of the two starting media can be discharged through an outlet with outlet valve 47 by depressing the discharge actuating handle 64.
  • the Fig. 2 shows the construction of the discharge head 110 in detail.
  • This has a base 20 which is fixed on the housing body which surrounds the reservoir 12, is placed. A one-piece design is possible.
  • a displacer 30 is displaceable, wherein the displacer 30 by means of a return spring 31 permanently in the first end position of Fig. 2 is pressed.
  • the base 20 and the displacer 30 together enclose the already mentioned metering chamber 40.
  • This metering chamber is fed by two inlets 42, 44.
  • the first inlet 42 connects the metering chamber 40 with the reservoir 12, wherein in a manner not shown here preferably a riser pipe is additionally provided which projects into the reservoir 12. This first inlet 42 is closed by overpressure in the metering chamber 40 by means of a valve disk 13.
  • the second inlet 44 leads to a separate conveyor 80.
  • This separate conveyor has a piston 90 which is disposed within a cylinder 91, wherein this cylinder 91 includes the second output medium in the delivery state.
  • the cylinder 91 is connected to the inlet 44 of the metering chamber 40 by a valve 93, which opens at positive pressure in the cylinder 91.
  • an additional actuating handle 82 is provided for displacement of the piston 90.
  • the additional actuating handle 82 and the piston 90 are not formed in one piece, but in two parts and connected by a SAge leopardkopplung 92, whose mode of action will be explained below.
  • a volume compensation device 60 provided on the upper side of the displacer 30 in the region of the actuation handle 64 has a membrane 62 which is movable between a minimum position 63 'and a maximum position 63 "Due to the negative pressure during the described return stroke, this membrane 62 absorbs the first output medium its minimum position 63 'a.
  • the volume compensation device allows this additional volume V to be accommodated in the dosing chamber 40 by displacing the membrane 62 in the direction of its maximum position 63 " Thus, there is now a mixture of the two starting media in the metering chamber 40.
  • the piston 90 remains at its previously reached position, since it bears non-positively against the inner walls of the cylinder 91 and also causes the now closed exhaust valve 93 causes the formation of a negative pressure when the piston 90 undergoes a force application upwards.
  • the piston 90 is thus no longer displaced upwards, but instead the sawtooth coupling 92 between the additional actuating handle 82 and the piston 90 continues a tooth.
  • another volume V can be supplied from the cylinder 91 to the metering chamber 40 by renewed depression.
  • the membrane 62 and its displaceability are preferably designed so that at least once the volume V, but preferably a volume of 3 x V or more of the metering chamber 40 can be supplied without the exhaust valve 47 opens.
  • the volume from the metering chamber 40 can be discharged through the outlet 46 by depressing the actuating handle 64 together with the displacer 30. Since the corresponding manual application of force takes place in the region of the membrane 62, it is automatically pressed in the direction of its minimum position 63 '. The remaining in the metering chamber 40 volume when the displacer 30 in its lower, second End position has been pressed, is thus substantially constant. When the discharge operation handle 64 is released, the cycle starts again.
  • the design of the 3 and 4 shows an alternative design, which in particular by two aspects of the design of the Fig. 1 and 2 different.
  • the first difference concerns the additional conveyor 80.
  • This is in the design of the 3 and 4 designed as a piston pump. It is therefore a separate reservoir 14 is provided, which in the off Fig. 3 can be seen adjacent to the reservoir 12 for the first output medium.
  • This reservoir 14 is connected via an inlet channel 86 and a pressure-dependent opening valve 87 with a pumping chamber of the additional conveyor 80.
  • an outlet channel 88 and an outlet valve 89 which likewise opens in a pressure-dependent manner, are provided.
  • the second major difference is that the volume compensation device 60 provides a significantly greater compensation volume.
  • a pin 61 protruding into the pumping chamber 40 is provided on the displacer 30, which supports a surrounding membrane 62 surrounding the pin 61.
  • the maximum position and minimum position indicated by the lines 63 ', 63 "illustrate that a comparatively large amount of liquid can be introduced by means of the additional conveyor 80 into the pumping chamber 40 already filled with the first starting medium, without the medium already passing through the outlet 46 and If the actuating handle is depressed after filling the metering chamber 40 with the first output medium and one or more charges of the second output medium, however, the taper 48 of the metering chamber 40 causes the diaphragm 62 to shift to its maximum position 63 " becomes. Regardless of the amount of the second output medium, which is supplied into the pumping chamber 40, a defined dead volume of the pumping chamber 40 is thus given when depressing the actuating handle 64 and the displacer 30 relative to the base 20.

Description

Die Erfindung betrifft einen Austragkopf zum Vermengen zwei Ausgangsmedien und zum Austragen der hierdurch erzeugten gemischten Flüssigkeit. Ein solcher Austragkopf weist eine Dosierkammer auf, die durch Dosierkammerwandungen an einer Basis des Austragkopfes und an einem Verdränger begrenzt wird. Der Austragkopf weist weiter einen ersten Einlass auf, durch den hindurch ein erstes der zwei Ausgangsmedien in die Dosierkammer einströmen kann, und einen zweiten Einlass, durch den hindurch ein zweites der zwei Ausgangsmedien in die Dosierkammer einströmen kann. Des Weiteren weist der Austragkopf einen Auslass auf, durch den hindurch die gemischte Flüssigkeit aus der Dosierkammer ausgetragen werden kann.The invention relates to a discharge head for mixing two starting media and for discharging the mixed liquid produced thereby. Such a discharge head has a metering chamber which is delimited by metering chamber walls at a base of the discharge head and at a displacer. The dispensing head further includes a first inlet through which a first of the two output media may flow into the dosing chamber and a second inlet through which a second of the two output media may flow into the dosing chamber. Furthermore, the discharge head has an outlet through which the mixed liquid can be discharged from the metering chamber.

Der Verdränger ist gegenüber der Basis manuell zwischen einer ersten Endlage und einer zweiten Endlage in einer Betätigungsrichtung beweglich, so dass das Volumen der Dosierkammer bei der Verlagerung des Verdrängers aus der ersten Endlage in die zweite Endlage reduziert wird und die gemischte Flüssigkeit durch den Auslass hinausgedrückt wird.The displacer is manually movable relative to the base between a first end position and a second end position in an actuation direction so that the volume of the metering chamber is reduced upon displacement of the displacer from the first end position to the second end position and the mixed fluid is forced out through the outlet ,

Ein derartiger Austragkopf kann somit verwendet werden, um eine Mischung aus zwei Flüssigkeiten auszutragen. Je nach Ausgestaltung gestattet er es, das Mischungsverhältnis zwischen den beiden Flüssigkeiten, die in der Dosierkammer vermengt werden, variabel einzustellen.Such a discharge head can thus be used to discharge a mixture of two liquids. Depending on the configuration, it allows the mixing ratio between the two liquids, which are mixed in the dosing chamber, to be set variably.

Allerdings ist es problematisch, wenn diese variable Einstellung derart erfolgen soll, dass nach Befüllung der Dosierkammer mit dem ersten Medium eine einstellbare Menge des zweiten Mediums hinzugefügt wird. Die Einbringung des zweiten Ausgangsmediums in die Dosierkammer kann dazu führen, dass bereits Flüssigkeit durch den Auslass der Dosierkammer ausströmt.However, it is problematic if this variable setting should be such that after filling the metering chamber with the first medium an adjustable amount of the second medium is added. The introduction of the second output medium into the metering chamber can lead to liquid already flowing out through the outlet of the metering chamber.

AUFGABE UND LÖSUNGTASK AND SOLUTION

Aufgabe der Erfindung ist es, die Herstellung einer gemischten Flüssigkeit in bequemer Art zu gestatten, ohne dass es hierbei zu ungewünschten Flüssigkeitsaustritt kommt. Dokument DE102010013329 A1 beschreibt einen Austragkopf gemäß dem Oberbegriff des Anspruchs 1. Hierzu wird vorgeschlagen, dass die Dosierkammer über eine Volumenkompensationseinrichtung verfügt. Diese Volumenkompensationseinrichtung weist einen die Dosierkammer begrenzenden auslenkbaren Dosierkammerwandungsabschnitt auf, der bezogen auf die erste Endlage des Verdrängers gegenüber der Basis zwischen einer Minimallage, in der er das Volumen der Dosierkammer nicht erweitert, und einer Maximallage, in der er das Volumen der Dosierkammer maximal erweitert, auslenkbar ist. Durch die Auslenkung des auslenkbaren Dosierkammerwandungsabschnitts in Richtung der Maximallage wird ein Zusatzvolumen in der Dosierkammer zur Verfügung gestellt, durch das bei bereits mit dem ersten Ausgangsmedium befüllter Dosierkammer und Anordnung des Verdrängers in seiner ersten Endlage noch das zweite Ausgangsmedium in die Dosierkammer eingebracht werden kann.The object of the invention is to allow the production of a mixed liquid in a convenient way, without this leading to unwanted liquid leakage. document DE102010013329 A1 describes a discharge head according to the preamble of claim 1. For this purpose, it is proposed that the metering chamber has a volume compensation device. This volume compensation device has a metering chamber delimiting the deflectable Dosierkammerwandungsabschnitt, based on the first end position of the displacer relative to the base between a minimal position in which he the volume of the Dosing chamber not extended, and a maximum position in which it maximizes the volume of the metering chamber, is deflectable. By the deflection of the deflectable Dosierkammerwandungsabschnitts in the direction of the maximum position an additional volume in the metering chamber is provided by the still in the first output medium filled metering chamber and arrangement of the displacer in its first end position nor the second output medium can be introduced into the metering chamber.

Bei einem erfindungsgemäßen Austragkopf, der über eine Dosierkammer mit erstem und zweitem Einlass sowie Auslass verfügt und dessen Dosierkammervolumen durch die Verlagerung des Verdrängers gegenüber der Basis reduzierbar ist, ist demnach vorgesehen, dass das Volumen der Dosierkammer unabhängig von der Relativstellung des Verdrängers gegenüber der Basis variabel ist. Hierfür ist die genannte Volumenkompensationseinrichtung vorgesehen, die entweder basisseitig oder verdrängerseitig angeordnet ist und den genannten Dosierkammerwandungsabschnitt aufweist, der gegenüber der Basis bzw. dem Verdränger auslenkbar ist.In a discharge head according to the invention, which has a metering chamber with first and second inlet and outlet and whose Dosierkammervolumen is reduced by the displacement of the displacer relative to the base, it is therefore provided that the volume of the metering regardless of the relative position of the displacer relative to the base variable is. For this purpose, said volume compensation device is provided which is arranged either on the base side or on the displacer side and has the said metering chamber wall section which can be deflected relative to the base or the displacer.

Dieser Dosierkammerwandungsabschnitt kann die genannte Minimallage einnehmen. Ist dies der Fall, so ist das Dosierkammervolumen durch den auslenkbaren Dosierkammerwandungsabschnitt nicht erweitert. Ausgehend von der Minimallage kann er in eine Maximallage verlagert werden, in der er zu einer maximalen Vergrößerung der Dosierkammer führt.This Dosierkammerwandungsabschnitt can take the said minimum position. If this is the case, the metering chamber volume is not widened by the deflectable metering chamber wall section. Starting from the minimum position, it can be shifted to a maximum position, in which it leads to a maximum enlargement of the dosing chamber.

Hierdurch wird es im Zuge der Verwendung möglich, die Dosierkammer beim Rückhub einer Austragsbetätigung zunächst vollständig mit dem ersten Ausgangsmedium zu befüllen, wobei sich der auslenkbare Dosierkammerwandungsabschnitt der Volumenkompensationseinrichtung derweil vorzugsweise in der Minimallage befindet. Anschließend kann noch vor dem Austrag der Flüssigkeit das zweite Ausgangsmedium zugeführt werden. Die Dosierkammer gestattet dessen Zuführung, da der Dosierkammerwandungsabschnitt durch seine Verlagerung in Richtung der Maximallage das erforderliche Volumen zur Verfügung stellt.This makes it possible in the course of use to fill the metering chamber during the return stroke of a Austragsbetätigung initially completely with the first output medium, wherein the deflectable Dosierkammerwandungsabschnitt the volume compensation device is meanwhile preferably in the minimum position. Subsequently, the second output medium can be supplied before the liquid is discharged. The metering chamber allows its supply, since the Dosierkammerwandungsabschnitt by its displacement in the direction of the maximum position provides the required volume.

Grundsätzlich ist die Verwendung des erfindungsgemäßen Austragkopfes vor allen Dingen für Medien zweckmäßig, bei denen vorgesehen ist, dass der überwiegende Volumenanteil durch das erste Medium zur Verfügung gestellt wird und ein geringerer Volumenanteil durch das zweite Medium. Derartiges ist beispielsweise bei Hautcreme zweckmäßig, die mit einem geringen Teil Selbstbräuner vermengt wird.In principle, the use of the discharge head according to the invention is above all expedient for media in which it is provided that the predominant volume fraction is provided by the first medium and a smaller volume fraction by the second medium. Such is useful, for example, in skin cream, which is mixed with a small amount of self-tanner.

Exemplarisch ist es beispielsweise möglich, dass die Dosierkammer bei Relativanordnung des Verdrängers gegenüber der Basis in der ersten Endlage und bei Anordnung des Wandungsabschnittes in seiner Minimallage ein Volumen zwischen 0,2 und 1 ml aufweist, während das durch Verlagerung des Dosierkammerwandungsabschnittes in die Maximallage erzielbare Zusatzvolumen zwischen 0,05 und 0,3 ml einnimmt. Vorzugsweise liegt das Verhältnis zwischen dem Volumen der Dosierkammer und dem Zusatzvolumen durch die Volumenkompensationseinrichtung zwischen 3:1 und 20:1; vorzugsweise zwischen 3:1 und 10:1.By way of example, it is possible, for example, for the metering chamber to have a volume of between 0.2 and 1 ml when the displacer is arranged relative to the base in the first end position and the wall section is arranged in its minimal position, while the can be achieved by displacing the Dosierkammerwandungsabschnittes in the maximum position achievable additional volume between 0.05 and 0.3 ml. Preferably, the ratio between the volume of the metering chamber and the additional volume through the volume compensation device is between 3: 1 and 20: 1; preferably between 3: 1 and 10: 1.

Der auslenkbare Dosierkammerwandungsabschnitt kann durch eine formflexible Wandung gebildet sein.The deflectable Dosierkammerwandungsabschnitt may be formed by a formflexible wall.

Die Gestaltung des auslenkbaren Dosierkammerwandungsabschnittes als formflexible Wandung ist baulich vergleichsweise einfach. Die Wandung ist bei einer solchen Gestaltung in Art einer vorzugsweise elastischen Membran ausgebildet. Diese kann durch ein separates Bauteil gebildet sein. Auch ist es möglich, sie einstückig mit umliegenden Wandungsbereichen der Dosierkammer auszubilden, insbesondere wenn mittels Mehrkomponentenspritzguss ein von den umliegenden Wandungen abweichendes Material für die Membran gewählt wird.The design of the deflectable Dosierkammerwandungsabschnittes as formflexible wall is structurally relatively simple. The wall is formed in such a design in the manner of a preferably elastic membrane. This can be formed by a separate component. It is also possible to form them integrally with surrounding wall regions of the metering chamber, in particular if a material deviating from the surrounding walls by means of multicomponent injection molding is selected for the membrane.

Der auslenkbare Dosierkammerwandungsabschnitt kann auch durch einen in sich starren verlagerbaren Wandungsabschnitt gebildet sein, insbesondere durch einen Wandungsabschnitt in einem Kompensationskolben, der in einem Kompensationszylinder der Dosierkammer verlagerbar angeordnet ist.The deflectable Dosierkammerwandungsabschnitt can also be formed by an inherently rigid displaceable wall portion, in particular by a wall portion in a compensation piston, which is arranged displaceably in a compensation cylinder of the metering chamber.

Die Verwendung eines starren Dosierkammerwandungsabschnittes macht es erforderlich, dass der Dosierkammerwandungsabschnitt als Ganzes verlagerbar ist. Die genannte Möglichkeit eines vorzugsweise federbelasteten Kompensationskolbens in einem Kompensationszylinder ist hier eine besonders vorteilhafte Anordnung, da sie es gestattet, die Wandungen des Kompensationszylinders transparent auszugestalten und hierdurch die Lage des Dosierkammerwandungsabschnittes von außen erkennbar zu machen. Auf diese Weise kann ein Benutzer beispielsweise erkennen, ob er nach Befüllung der Dosierkammer mit dem ersten Medium bereits ausreichend viel von dem zweiten Medium hinzugefügt hat.The use of a rigid metering chamber wall section requires that the metering chamber wall section be displaceable as a whole. The said possibility of a preferably spring-loaded compensation piston in a compensation cylinder is here a particularly advantageous arrangement, since it allows to make the walls of the compensation cylinder transparent and thereby make the position of the Dosierkammerwandungsabschnittes visible from the outside. In this way, a user can recognize, for example, whether he has already added enough of the second medium after filling the metering chamber with the first medium.

Zur Einbringung des ersten Ausgangsmediums in die Dosierkammer kann die Dosierkammer mit einem ersten Reservoir für das erste Ausgangsmedium verbunden, wobei zwischen dem ersten Reservoir und der Dosierkammer ist ein druckabhängig öffnendes Ventil vorgesehen sein kann.For introducing the first output medium into the metering chamber, the metering chamber can be connected to a first reservoir for the first output medium, wherein a pressure-dependent opening valve can be provided between the first reservoir and the metering chamber.

Wie bereits genannt, ist das erste Ausgangsmedium vorzugsweise das Hauptmedium, welches den überwiegenden Anteil der auszutragenden Flüssigkeit einnimmt. Durch die Gestaltung der Anbindung der Dosierkammer an das erste Reservoir mit einem zwischengeschalteten druckabhängig öffnenden Ventil wird erreicht, dass bei der Rückverlagerung des Verdrängers in seine erste Endlage (Rückhub) dieses erste Ausgangsmedium angesogen wird, beispielsweise aus einem unbelüfteten Reservoirbeutel oder einem Schleppkolbenreservoir oder aber mittels eines Steigrohres. Das zweite Ausgangsmedium kann dann anschließend zudosiert werden.As already mentioned, the first starting medium is preferably the main medium, which occupies the majority of the liquid to be discharged. By designing the connection of the metering chamber to the first reservoir with an intermediate pressure-dependent opening valve is achieved that during the return displacement of the displacer in its first end position (return stroke) this first output medium is sucked, for example, from an unvented reservoir bag or Schleppkolbenreservoir or by means of a riser. The second starting medium can then be added subsequently.

Zur Einbringung des zweiten Ausgangsmediums in die Dosierkammer kann eine Fördereinrichtung vorgesehen sein, die mittels einer Zusatz-Betätigungshandhabe betätigbar ist.For introducing the second output medium into the metering chamber, a conveying device can be provided which can be actuated by means of an additional actuating handle.

Die separate Fördereinrichtung für das zweite Ausgangsmedium mit einer separaten Betätigungshandhabe gestattet es, nach Befüllung der Dosierkammer mit dem ersten Ausgangsmedium die gewünschte Menge des zweiten Ausgangsmediums der Dosierkammer zuzuführen.The separate conveyor for the second output medium with a separate actuating handle allows to supply the desired amount of the second output medium of the metering chamber after filling the metering chamber with the first output medium.

Die Fördereinrichtung kann über eine Förderpumpe mit einem Einlass mit Einlassventil und einem Auslass mit Auslassventil verfügen. Der Einlass der Förderpumpe kann mit einem zweiten Reservoir für das zweite Ausgangsmedium verbunden sein. Der Auslass der Förderpumpe kann mit dem zweiten Einlass der Dosierkammer verbunden sein.The conveyor may have a feed pump with an inlet with inlet valve and an outlet with outlet valve. The inlet of the feed pump may be connected to a second reservoir for the second output medium. The outlet of the feed pump may be connected to the second inlet of the metering chamber.

Bei dieser Gestaltung ist somit die Fördereinrichtung zur Förderung des zweiten Ausgangsmediums als Pumpe ausgestaltet, die aus einem zweiten Reservoir ansaugt und durch ihren Auslass die Förderung des zweiten Ausgangsmediums in die Dosierkammer gestattet.In this configuration, the delivery device for delivery of the second output medium is thus configured as a pump, which sucks from a second reservoir and allows the delivery of the second output medium into the metering chamber through its outlet.

Die Fördereinrichtung kann alternativ über einen in einem Förderzylinder unidirektional verschlieblichen Kolben verfügen, der mittels der Zusatz-Betätigungshandhabe schrittweise verschieblich ist. Dabei kann vorzugsweise zwischen der Zusatz-Betätigungshandhabe und dem Kolben eine Sägezahnkopplung vorgesehen, durch die eine Bewegung des Kolbens bei Betätigung der Zusatz-Betätigungshandhabe erzwungen wird und eine Vergrößerung der Beabstandung des Kolbens von der Zusatz-Betätigungshandhabe bei einer Rückstellung der Betätigungshandhabe ermöglicht wird.The conveyor may alternatively have a unidirectionally slidable in a delivery cylinder piston which is gradually displaced by means of the additional actuating handle. In this case, preferably a sawtooth coupling is provided between the auxiliary actuating handle and the piston, by which a movement of the piston is forced upon actuation of the auxiliary actuating handle and an increase in the spacing of the piston is made possible by the additional actuating handle at a provision of the actuating handle.

Bei dieser alternativen Variante einer Fördereinrichtung ist kein separates Reservoir vorgesehen. Stattdessen wird ein Kolben schrittweise verschoben und mit jedem Vorschub ein Volumen des zweiten Ausgangsmediums in die Dosierkammer gefördert. Der Kolben beinhaltet im Lieferzustand die Gesamtmenge des zweiten Ausgangsmediums. Er ist mit jeder Betätigung der Zusatz-Betätigungshandhabe nur ein Stück weit verlagerbar und bedarf zur wiederholten Ausbringung des zweiten Ausgangsmediums in die Dosierkammer nach jeder Hubbewegung eines Rückhubes der Zusatz-Betätigungshandhabe.In this alternative variant of a conveyor no separate reservoir is provided. Instead, a piston is gradually shifted and promoted with each feed a volume of the second output medium in the metering chamber. The piston includes the total amount of the second output medium in the delivery state. He is only slightly displaced with each actuation of the additional actuating handle and requires repeated application of the second output medium in the metering chamber after each stroke of a return stroke of the additional actuating handle.

Eine hierfür geeignete Gestaltung sieht vor, dass die Zusatz-Betätigungshandhabe und der Kolben ebenfalls unidirektional gegeneinander verlagert werden können. Die genannte Sägezahnkopplung ist hierfür eine zweckmäßige Gestaltung. Die Sägezahnkopplung führt beim Niederdrücken der Zusatz-Betätigungshandhabe zu einer gemeinsamen Verlagerung mit dem Kolben. Durch Unterdruck und/oder durch kraftschlüssige oder formschlüssige Kräfte zwischen Kolben und Förderzylinder wird bewirkt, dass beim Rückhub der Zusatz-Betätigungshandhabe die Sägezahnkopplung weiter springt, so dass bei einer wiederholten Betätigung der Zusatz-Betätigungshandhabe der Ausgangspunkt des Kolbens jeweils der Endlage beim vorangegangenen Hub entspricht.A design suitable for this purpose provides that the additional actuating handle and the piston can also be displaced unidirectionally against each other. The said sawtooth coupling is an expedient design for this purpose. The Sägezahnkopplung leads when depressing the additional actuating handle to a common displacement with the piston. By negative pressure and / or by non-positive or positive forces between the piston and the delivery cylinder causes the sawtooth coupling continues to jump during the return stroke of the additional actuating handle, so that in a repeated operation of the additional actuating handle, the starting point of the piston corresponds to the end position in the previous stroke ,

Die Gestaltung einer Fördereinrichtung mit einer Betätigungshandhabe und einem Kolben, die in genannter Weise mit einer Sägezahnkopplung miteinander verbunden sind, stellt nicht nur im Bereich des beschriebenen Austragkopfes eine zweckmäßige Gestaltung dar, sondern ließe sich auch isoliert bei anderweitigen Spendern, beispielsweise bei Tropfenspendern, zweckmäßig verwenden.The design of a conveyor with an actuating handle and a piston, which are connected in the manner mentioned with a Sägezahnkopplung, not only in the described discharge head a convenient design, but also isolated in other donors, such as drop dispensers, use appropriate ,

Die Fördereinrichtung kann zur Einbringung einer definierten Menge V des zweiten Ausgangsmediums bei einmaliger Betätigung der Zusatz-Betätigungshandhabe ausgebildet sein. Dem Auslass der Dosierkammer ist ein druckabhängig öffnendes Auslassventil zugeordnet. Dieses Auslassventil, die Fördereinrichtung zur Einbringung des zweiten Ausgangsmediums und die Volumenkompensationseinrichtung können derart aufeinander abgestimmt sein, dass die Volumenkompensationseinrichtung mindestens die Menge V des zweiten Ausgangsmediums aufnehmen kann, ohne dass das Auslassventil hierdurch geöffnet wird, vorzugsweise mindestens die Menge 3 x V, insbesondere vorzugsweise die Menge 6 x V.The conveyor may be designed to introduce a defined amount V of the second output medium with a single operation of the additional actuating handle. The outlet of the metering chamber is assigned a pressure-dependent opening outlet valve. This outlet valve, the delivery device for introducing the second output medium and the volume compensation device can be matched to one another such that the volume compensation device can accommodate at least the quantity V of the second output medium without the outlet valve being opened thereby, preferably at least the amount 3 × V, in particular preferably the amount 6 x V.

Die genannte Abstimmung sorgt dafür, dass mindestens eine, vorzugsweise jedoch mehrere durch eine Betätigung der Zusatz-Betätigungshandhabe in die Dosierkammer abgegebene Menge V des zweiten Ausgangsmediums aufgenommen werden kann, ohne dass bereits Flüssigkeit durch den Auslass der Dosierkammer austritt. Hierfür sind insbesondere die Drücke aufeinander abzustimmen, die es zur Verlagerung des Wandungsabschnittes der Volumenkompensationseinheit einerseits und zum Öffnen des Auslassventils bedarf. Der erforderliche Druck zur Verlagerung des Wandungsabschnittes sollte geringer sein als jener zum Öffnen des Auslassventils, bis der auslenkbare Wandungsabschnitt seine Maximallage einnimmt.Said tuning ensures that at least one, but preferably a plurality of output by the actuation of the additional actuating handle in the metering chamber amount V of the second output medium can be received without liquid already exiting through the outlet of the metering chamber. For this purpose, in particular the pressures to be matched to each other, which requires it to shift the wall portion of the volume compensation unit on the one hand and to open the exhaust valve. The pressure required to displace the wall section should be less than that for opening the outlet valve until the deflectable wall section assumes its maximum position.

Der auslenkbare Dosierkammerwandungsabschnitt der Volumenkompensationseinrichtung kann am Verdränger vorgesehen sein. Der Verdränger kann dabei fest mit einer Austrag-Betätigungshandhabe verbunden sein.The deflectable Dosierkammerwandungsabschnitt the volume compensation device may be provided on the displacer. The displacer can be firmly connected to a discharge actuating handle.

Die Anordnung der Volumenkompensationseinheit und insbesondere des auslenkbaren Wandungsabschnittes am Verdränger ist baulich häufig einfacher als an der Basis. Der Verdränger stellt vorzugsweise unmittelbar die Betätigungshandhabe dar. Es sind jedoch auch Ausgestaltungen denkbar, bei denen zwischen dem Verdränger und der Betätigungshandhabe ein Getriebe vorgesehen ist.The arrangement of the volume compensation unit and in particular the deflectable wall section on the displacer is structurally often easier than at the base. The displacer is preferably directly the actuating handle. However, embodiments are also conceivable in which a transmission is provided between the displacer and the actuating handle.

Der auslenkbare Dosierkammerwandungsabschnitt kann derart an der Austrag-Betätigungshandhabe vorgesehen sein, dass er durch Betätigung der Austrag-Betätigungshandhabe in Richtung seiner Maximallage oder in Richtung seiner Minimallage gedrückt wird.The deflectable Dosierkammerwandungsabschnitt may be provided on the discharge actuating handle such that it is pressed by actuation of the discharge actuating handle in the direction of its maximum position or in the direction of its minimum position.

Die Anordnung des Dosierkammerwandungsabschnittes, so dass diese bei einer Betätigung seine Maximallage oder seine Minimallage einnimmt, dient der Berechenbarkeit der auszutragenden Flüssigkeitsmenge. Beim bestimmungsgemäßen Gebrauch eines Austragkopfes ist zu Beginn des Austragvorgangs der Dosierkammerwandungsabschnitt in Abhängigkeit des zuvor beigefügten zweiten Ausgangsmediums nicht immer in der gleichen Position. Es ist von Vorteil, wenn jedoch in der zweiten Endlage des Verdrängers gegenüber der Basis eine definierte Stellung des auslenkbaren Dosierkammerwandungsabschnittes gegeben ist. Das Verbleibende Totvolumen ist somit konstant.The arrangement of the Dosierkammerwandungsabschnittes, so that it occupies its maximum position or its minimum position when actuated, serves the predictability of the amount of liquid to be discharged. When using a discharge head as intended, the dosing chamber wall section is not always in the same position at the beginning of the discharge operation, depending on the second output medium previously attached. It is advantageous if, however, in the second end position of the displacer relative to the base, a defined position of the deflectable Dosierkammerwandungsabschnittes is given. The remaining dead volume is thus constant.

Der auslenkbare Dosierkammerwandungsabschnitt kann derart in der Dosierkammer angeordnet sein, dass er im Zuge der Betätigung der Austrag-Betätigungshandhabe in Richtung seiner Maximallage oder in Richtung seiner Minimallage gedrückt wird. Dabei kann vorzugsweise der durch eine formflexible Wandung gebildete auslenkbare Dosierkammerwandungsabschnitt derart geformt sein, dass er durch eine Kraftbeaufschlagung quer zur Betätigungsrichtung auslenkbar ist, und ein mit der auslenkbaren Dosierkammerwandung zusammenwirkender Abschnitt in der Dosierkammer vorgesehen sein, durch den die auslenkbare Dosierkammerwandung bei Verlagerung des Verdrängers ausgelenkt wird.The deflectable Dosierkammerwandungsabschnitt can be arranged in the metering chamber such that it is pressed in the course of the actuation of the discharge actuating handle in the direction of its maximum position or in the direction of its minimum position. In this case, preferably, the deflectable Dosierkammerwandungsabschnitt formed by a formflexible wall be shaped so that it can be deflected by a force applied transversely to the direction of actuation, and be provided with the deflectable Dosierkammerwandung cooperating portion in the metering chamber, deflected by the deflectable Dosierkammerwandung upon displacement of the displacer becomes.

Bei dieser Gestaltung ist es das Zusammenwirken des auslenkbaren Dosierkammerwandungsabschnittes mit einem Abschnitt der Dosierkammer, das bei der Verlagerung des Verdrängers gegenüber der Basis die definierte Lage des Dosierkammerwandungsabschnittes bewirkt. So kann bei einer Anordnung des auslenkbaren Dosierkammerwandungsabschnittes am Verdränger vorgesehen sein, dass dieser durch einen Dosierkammerabschnitt der Basis während der Verlagerung kraftbeaufschlagt wird und in eine definierte Lage verbracht wird.In this configuration, it is the interaction of the deflectable Dosierkammerwandungsabschnittes with a portion of the metering chamber, which causes the displacement of the displacer relative to the base, the defined position of the Dosierkammerwandungsabschnittes. Thus, in the case of an arrangement of the deflectable metering chamber wall section on the displacer, it may be provided that this is subjected to force during a displacement by a metering chamber section of the base and is brought into a defined position.

Der auslenkbare Dosierkammerwandungsabschnitt kann an der Austrag-Betätigungshandhabe im Bereich einer Fingerauflagefläche vorgesehen sein.The deflectable Dosierkammerwandungsabschnitt may be provided on the discharge actuating handle in the region of a finger support surface.

Dies ist eine besonders einfache Ausgestaltung, um bei der Betätigung der Austrag-Betätigungshandhabe eine definierte Lage des Dosierkammerwandungsabschnittes zu gewährleisten. Dadurch, dass dieser unmittelbar im Bereich einer Fingerauflagefläche vorgesehen ist, wird er automatisch in Richtung seiner Minimallage gedrückt, wenn die Austrag-Betätigungshandhabe niedergedrückt wird. Die Anordnung des auslenkbaren Dosierkammerwandungsabschnittes an der Fingerauflagefläche hat zudem den Vorteil, dass es haptisch erfassbar macht, ob und wie viel des zweiten Ausgangsmediums bereits beigefügt wurde.This is a particularly simple embodiment in order to ensure a defined position of the Dosierkammerwandungsabschnittes upon actuation of the discharge actuating handle. Because it is provided directly in the region of a finger support surface, it is automatically pressed in the direction of its minimum position when the discharge actuating handle is depressed. The arrangement of the deflectable Dosierkammerwandungsabschnittes on the finger rest surface also has the advantage that it makes haptic detectable whether and how much of the second output medium has already been attached.

Die Erfindung betrifft weiterhin einen Spender zum Vermengen zwei Ausgangsmedien und zum Austragen der hierdurch erzeugten gemischten Flüssigkeit. Der Spender verfügt über ein erstes und ein zweites Reservoir zur Aufnahme der beiden Ausgangsmedien. Er verfügt weiterhin über einen Austragkopf vorbeschriebener Art.The invention further relates to a dispenser for mixing two starting media and discharging the mixed fluid produced thereby. The dispenser has a first and a second reservoir for receiving the two output media. He also has a discharge head of the type described above.

Ein solcher Spender verfügt somit neben dem beschriebenen Austragkopf über getrennt gelagerte Ausgangsmedien. Wie bereits beschrieben, können diese Ausgangsmedien per Steigrohr angesogen werden oder in belüftungsfreien Reservoirs mit Schleppkolben oder flexiblem Beutel gelagert werden. Ein bevorzugter Anwendungsbereich sind kosmetische Lotionen, wobei hier insbesondere das erste Ausgangsmedium den Basisanteil dieser Lotion stellt, während das zweite Ausgangsmedium einen Zusatzwirkstoff darstellen kann.Such a dispenser thus has not only the discharge head described above separately stored output media. As already described, these starting media can be aspirated by riser or stored in aeration-free reservoirs with drag piston or flexible bag. A preferred field of application are cosmetic lotions, in which case in particular the first starting medium constitutes the base portion of this lotion, while the second starting medium may represent an additional active ingredient.

KURZBESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Weitere Vorteile und Aspekte der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung von bevorzugten Ausführungsbeispielen der Erfindung, die nachfolgend anhand der Figuren erläutert sind. Dabei zeigen:

  • Fig. 1 und Fig. 2 zeigen eine erste Ausgestaltung der Erfindung.
  • Fig. 3 und Fig. 4 zeigen eine erste Ausgestaltung der Erfindung.
Further advantages and aspects of the invention will become apparent from the claims and from the following description of preferred embodiments of the invention, which are explained below with reference to the figures. Showing:
  • Fig. 1 and Fig. 2 show a first embodiment of the invention.
  • FIG. 3 and FIG. 4 show a first embodiment of the invention.

DETAILLIERTE BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDETAILED DESCRIPTION OF THE EMBODIMENTS

Die Fig. 1 und 2 zeigen eine erste Ausführungsform der Erfindung. Hierbei zeigt Fig. 1 den Spender 100 als Ganzes mit einem Austragkopf 110, der auf einem Reservoir 12 für ein erstes Ausgangsmedium aufgesetzt ist. Der Austragkopf 110 verfügt über eine Austrag-Betätigungshandhabe 64 sowie eine Zusatz-Betätigungshandhabe 82.The Fig. 1 and 2 show a first embodiment of the invention. This shows Fig. 1 the dispenser 100 as a whole with a discharge head 110 which is placed on a reservoir 12 for a first output medium. The dispensing head 110 has a dispensing actuating handle 64 and an auxiliary actuating handle 82.

Die bestimmungsgemäße Verwendung des Spenders 100 der Fig. 1 sieht vor, dass zunächst von einem vorangegangenen Austragvorgang bereits eine in Fig. 2 dargestellte Dosierkammer 40, die im Weiteren noch beschrieben wird, mit dem ersten Ausgangsmedium aus dem Reservoir 12 befüllt ist.The intended use of the dispenser 100 of Fig. 1 provides that initially from a previous discharge process already in Fig. 2 shown dosing chamber 40, which will be described below, is filled with the first output medium from the reservoir 12.

Ausgehend von dieser Ausgangssituation kann über die Zusatz-Betätigungshandhabe 82 ein zweites Ausgangsmedium in einer gewünschten Menge zudosiert werden. Ist diese Zudosierung abgeschlossen, so kann durch Niederdrücken der Austrag-Betätigungshandhabe 64 das Gemisch aus beiden Ausgangsmedien durch einen Auslass mit Auslassventil 47 ausgetragen werden.Starting from this initial situation, a second starting medium in a desired amount can be added via the additional actuating handle 82. If this metered addition is complete, the mixture of the two starting media can be discharged through an outlet with outlet valve 47 by depressing the discharge actuating handle 64.

Die Fig. 2 zeigt den Aufbau des Austragkopfes 110 im Detail. Dieser verfügt über eine Basis 20, die fest auf dem Gehäusekörper, der das Reservoir 12 umschließt, aufgesetzt ist. Auch eine einstückige Gestaltung ist möglich. Gegenüber der Basis 20 ist ein Verdränger 30 verlagerbar, wobei der Verdränger 30 mittels einer Rückstellfeder 31 permanent in die erste Endlage der Fig. 2 gedrückt wird. Die Basis 20 und der Verdränger 30 umschließen gemeinsam die bereits genannte Dosierkammer 40. Diese Dosierkammer wird durch zwei Einlässe 42, 44 gespeist.The Fig. 2 shows the construction of the discharge head 110 in detail. This has a base 20 which is fixed on the housing body which surrounds the reservoir 12, is placed. A one-piece design is possible. Compared to the base 20, a displacer 30 is displaceable, wherein the displacer 30 by means of a return spring 31 permanently in the first end position of Fig. 2 is pressed. The base 20 and the displacer 30 together enclose the already mentioned metering chamber 40. This metering chamber is fed by two inlets 42, 44.

Der erste Einlass 42 verbindet die Dosierkammer 40 mit dem Reservoir 12, wobei in nicht dargestellter Weise hier vorzugsweise zusätzlich ein Steigrohr vorgesehen ist, welches in das Reservoir 12 hinabragt. Dieser erste Einlass 42 wird bei Überdruck in der Dosierkammer 40 mittels eines Ventiltellers 13 verschlossen.The first inlet 42 connects the metering chamber 40 with the reservoir 12, wherein in a manner not shown here preferably a riser pipe is additionally provided which projects into the reservoir 12. This first inlet 42 is closed by overpressure in the metering chamber 40 by means of a valve disk 13.

Der zweite Einlass 44 führt zu einer separaten Fördereinrichtung 80. Diese separate Fördereinrichtung verfügt über einen Kolben 90, der innerhalb eines Zylinders 91 angeordnet ist, wobei dieser Zylinder 91 im Auslieferzustand das zweite Ausgangsmedium beinhaltet. Der Zylinder 91 ist mit dem Einlass 44 der Dosierkammer 40 durch ein Ventil 93 verbunden, welches bei Überdruck im Zylinder 91 öffnet. Zur Verlagerung des Kolbens 90 ist eine Zusatz-Betätigungshandhabe 82 vorgesehen. Die Zusatz-Betätigungshandhabe 82 und der Kolben 90 sind nicht einstückig ausgebildet, sondern zweiteilig und durch eine Sägezahnkopplung 92 miteinander verbunden, deren Wirkweise im Weiteren noch erläutert wird.The second inlet 44 leads to a separate conveyor 80. This separate conveyor has a piston 90 which is disposed within a cylinder 91, wherein this cylinder 91 includes the second output medium in the delivery state. The cylinder 91 is connected to the inlet 44 of the metering chamber 40 by a valve 93, which opens at positive pressure in the cylinder 91. For displacement of the piston 90, an additional actuating handle 82 is provided. The additional actuating handle 82 and the piston 90 are not formed in one piece, but in two parts and connected by a Sägezahnkopplung 92, whose mode of action will be explained below.

Wenn der Verdränger 30 nach einem vorangegangenen Austragvorgang aus seiner zweiten, unteren Endlage angetrieben durch die Feder 31 in die erste Endlage der Fig. 2 zurückkehrt, saugt er bei geöffnetem Einlassventil 13 das erste Ausgangsmedium aus dem Reservoir 12 in die Dosierkammer 40, so dass die Dosierkammer bei Erreichen der ersten, oberen Endlage vollständig mit dem ersten Ausgangsmedium befüllt ist. Das Einlassventil 13 öffnet bereits bei geringerem Unterdruck als das Auslassventil 93, so dass bis zu diesem Zeitpunkt kein Zufluss von zweitem Ausgangsmedium stattgefunden hat.When the displacer 30 is driven by the spring 31 into its first end position after a previous discharge from its second, lower end position Fig. 2 returns, it sucks with open inlet valve 13, the first output medium from the reservoir 12 into the metering chamber 40, so that the metering chamber is completely filled on reaching the first, upper end position with the first output medium. The inlet valve 13 already opens at lower negative pressure than the outlet valve 93, so that up to this time no inflow of second output medium has taken place.

Eine an der Oberseite des Verdrängers 30 im Bereich der Betätigungshandhabe 64 vorgesehene Volumenkompensationseinrichtung 60 verfügt über eine Membran 62, die zwischen einer Minimallage 63' und einer Maximallage 63" beweglich ist. Durch den Unterdruck beim beschriebenen Rückhub nimmt diese Membran 62 beim Ansaugen des ersten Ausgangsmediums ihre Minimallage 63' ein.A volume compensation device 60 provided on the upper side of the displacer 30 in the region of the actuation handle 64 has a membrane 62 which is movable between a minimum position 63 'and a maximum position 63 "Due to the negative pressure during the described return stroke, this membrane 62 absorbs the first output medium its minimum position 63 'a.

Wenn nun bei mit dem ersten Ausgangsmedium befüllter Dosierkammer 40 die Zusatz-Betätigungshandhabe 82 niedergedrückt wird, so wird hierdurch auch der Kolben 90 niedergedrückt und ein Volumen V aus dem Zylinder 91 wird durch das Auslassventil 93 hindurch ebenfalls der Dosierkammer 40 zugeführt. Damit es in diesem Augenblick noch nicht zu einem ungewollten Austrag von Flüssigkeit durch den Auslasskanal 46 und das Auslassventil 47 kommt, gestattet es die Volumenkompensationseinrichtung, dass dieses zusätzliche Volumen V in der Dosierkammer 40 durch Verlagerung der Membran 62 in Richtung ihrer Maximallage 63" aufgenommen wird. Es liegt nun also ein Gemisch aus den beiden Ausgangsmedien in der Dosierkammer 40 vor.If now the additional actuating handle 82 is depressed when filled with the first output medium metering chamber 40, this also the piston 90 is depressed and a volume V from the cylinder 91 is also fed through the outlet valve 93 through the metering chamber 40. In order to prevent undesired discharge of liquid through the outlet channel 46 and the outlet valve 47 at this moment, the volume compensation device allows this additional volume V to be accommodated in the dosing chamber 40 by displacing the membrane 62 in the direction of its maximum position 63 " Thus, there is now a mixture of the two starting media in the metering chamber 40.

Beim Rückhub der Zusatz-Betätigungshandhabe 82 verbleibt der Kolben 90 an seiner zuvor erreichten Position, da er kraftschlüssig an den Innenwandungen des Zylinders 91 anliegt und zudem das nunmehr verschlossene Auslassventil 93 die Bildung eines Unterdrucks verursacht, wenn der Kolben 90 eine Kraftbeaufschlagung nach oben erfährt. Der Kolben 90 wird somit nicht mehr nach oben verlagert, sondern stattdessen springt die Sägezahnkopplung 92 zwischen der Zusatz-Betätigungshandhabe 82 und dem Kolben 90 einen Zahn weiter. Somit kann nach Rückhub der Zusatz-Betätigungshandhabe 82 durch erneutes Niederdrücken ein weiteres Volumen V aus dem Zylinder 91 der Dosierkammer 40 zugeführt werden. Die Membran 62 und ihre Verlagerbarkeit sind vorzugsweise derart gestaltet, dass mindestens einmalig das Volumen V, vorzugsweise jedoch ein Volumen von 3 x V oder mehr der Dosierkammer 40 zugeführt werden kann, ohne dass das Auslassventil 47 öffnet.During the return stroke of the additional actuating handle 82, the piston 90 remains at its previously reached position, since it bears non-positively against the inner walls of the cylinder 91 and also causes the now closed exhaust valve 93 causes the formation of a negative pressure when the piston 90 undergoes a force application upwards. The piston 90 is thus no longer displaced upwards, but instead the sawtooth coupling 92 between the additional actuating handle 82 and the piston 90 continues a tooth. Thus, after a return stroke of the additional actuating handle 82, another volume V can be supplied from the cylinder 91 to the metering chamber 40 by renewed depression. The membrane 62 and its displaceability are preferably designed so that at least once the volume V, but preferably a volume of 3 x V or more of the metering chamber 40 can be supplied without the exhaust valve 47 opens.

Ist die gewünschte Menge des zweiten Ausgangsmediums aus dem Zylinder 91 in die Dosierkammer 40 gefördert worden, so kann durch Niederdrücken der Betätigungshandhabe 64 mitsamt Verdränger 30 das Volumen aus der Dosierkammer 40 durch den Auslass 46 hindurch ausgetragen werden. Da die entsprechende manuelle Kraftbeaufschlagung im Bereich der Membran 62 erfolgt, wird diese automatisch in Richtung ihrer Minimallage 63' gedrückt. Das in der Dosierkammer 40 verbleibende Volumen, wenn der Verdränger 30 in seine untere, zweite Endlage gedrückt wurde, ist somit im Wesentlichen konstant. Wird die Austrag-Betätigungshandhabe 64 losgelassen, so beginnt der Zyklus von neuem.If the desired amount of the second output medium has been conveyed out of the cylinder 91 into the metering chamber 40, the volume from the metering chamber 40 can be discharged through the outlet 46 by depressing the actuating handle 64 together with the displacer 30. Since the corresponding manual application of force takes place in the region of the membrane 62, it is automatically pressed in the direction of its minimum position 63 '. The remaining in the metering chamber 40 volume when the displacer 30 in its lower, second End position has been pressed, is thus substantially constant. When the discharge operation handle 64 is released, the cycle starts again.

Die Ausgestaltung der Fig. 3 und 4 zeigt eine alternative Gestaltung, die sich insbesondere durch zwei Aspekte von der Ausgestaltung der Fig. 1 und 2 unterscheidet.The design of the 3 and 4 shows an alternative design, which in particular by two aspects of the design of the Fig. 1 and 2 different.

Der erste Unterschied betrifft die Zusatz-Fördereinrichtung 80. Diese ist bei der Gestaltung der Fig. 3 und 4 als Kolbenpumpe ausgestaltet. Es ist daher ein separates Reservoir 14 vorgesehen, welches in der aus Fig. 3 ersichtlichen Weise neben dem Reservoir 12 für das erste Ausgangsmedium angeordnet ist. Dieses Reservoir 14 ist über einen Einlasskanal 86 und ein druckabhängig öffnendes Ventil 87 mit einer Pumpkammer der Zusatz-Fördereinrichtung 80 verbunden. Ausgangsseitig sind wiederum ein Auslasskanal 88 und ein ebenfalls druckabhängig öffnendes Auslassventil 89 vorgesehen. Durch die Zusatz-Betätigungshandhabe 82 kann diese Pumpe betätigt werden, so dass das zweite Ausgangsmedium aus dem Reservoir 14 in die Pumpkammer 40 gefördert wird.The first difference concerns the additional conveyor 80. This is in the design of the 3 and 4 designed as a piston pump. It is therefore a separate reservoir 14 is provided, which in the off Fig. 3 can be seen adjacent to the reservoir 12 for the first output medium. This reservoir 14 is connected via an inlet channel 86 and a pressure-dependent opening valve 87 with a pumping chamber of the additional conveyor 80. On the output side, in turn, an outlet channel 88 and an outlet valve 89, which likewise opens in a pressure-dependent manner, are provided. By the additional actuating handle 82, this pump can be actuated, so that the second output medium is conveyed from the reservoir 14 into the pumping chamber 40.

Der zweite wesentliche Unterschied liegt darin, dass die Volumenkompensationseinrichtung 60 ein deutlich größeres Kompensationsvolumen zur Verfügung stellt. Hierfür ist am Verdränger 30 ein in die Pumpkammer 40 ragender Stift 61 vorgesehen, der eine den Stift 61 umgebende umlaufende Membran 62 stützt. Die durch die Linien 63', 63" gekennzeichnete Maximallage und Minimallage verdeutlichen, dass eine vergleichsweise große Flüssigkeitsmenge mittels der Zusatz-Fördereinrichtung 80 in die bereits mit dem ersten Ausgangsmedium befüllte Pumpkammer 40 eingebracht werden kann, ohne dass das Medium bereits durch den Auslass 46 und das Auslassventil 47 ausgetragen wird. Wird die Betätigungshandhabe nach Befüllen der Dosierkammer 40 mit dem ersten Ausgangsmedium und einer oder mehreren Chargen des zweiten Ausgangsmediums niedergedrückt, so wird durch die Verjüngung 48 der Dosierkammer 40 jedoch bewirkt, dass die Membran 62 in ihre Maximallage 63" verlagert wird. Unabhängig von der Menge des zweiten Ausgangsmediums, welches in die Pumpkammer 40 zugeführt wird, ist somit beim Niederdrücken der Betätigungshandhabe 64 und des Verdrängers 30 gegenüber der Basis 20 ein definiertes Totvolumen der Pumpkammer 40 gegeben.The second major difference is that the volume compensation device 60 provides a significantly greater compensation volume. For this purpose, a pin 61 protruding into the pumping chamber 40 is provided on the displacer 30, which supports a surrounding membrane 62 surrounding the pin 61. The maximum position and minimum position indicated by the lines 63 ', 63 "illustrate that a comparatively large amount of liquid can be introduced by means of the additional conveyor 80 into the pumping chamber 40 already filled with the first starting medium, without the medium already passing through the outlet 46 and If the actuating handle is depressed after filling the metering chamber 40 with the first output medium and one or more charges of the second output medium, however, the taper 48 of the metering chamber 40 causes the diaphragm 62 to shift to its maximum position 63 " becomes. Regardless of the amount of the second output medium, which is supplied into the pumping chamber 40, a defined dead volume of the pumping chamber 40 is thus given when depressing the actuating handle 64 and the displacer 30 relative to the base 20.

Claims (13)

  1. Discharge head (110; 210) for mixing two starting media and for discharging the mixed liquid that is thereby generated, with the following features:
    a. the discharge head has a dosing chamber (40) which is delimited by dosing-chamber walls on a base (20) of the discharge head and on a displacer (30), and
    b. the discharge head has a first inlet (42), through which a first of the two starting media can flow into the dosing chamber (40), and
    c. the discharge head has a second inlet (44), through which a second of the two starting media can flow into the dosing chamber (40),
    d. the discharge head has an outlet (46) through which the mixed liquid can be discharged from the dosing chamber (40), and
    e. the displacer (30) is manually movable relative to the base (20) in an actuation direction between a first end position and a second end position, such that, during the movement of the displacer (30) from the first end position to the second end position, the volume of the dosing chamber (40) is reduced and the mixed liquid is forced out through the outlet (46),
    characterized by the following feature:
    f. the dosing chamber has a volume-compensating mechanism (60), and
    g. the volume-compensating mechanism (60) has a deflectable dosing-chamber wall portion (62) which delimits the dosing chamber (40) and which is deflectable, with respect to the first end position of the displacer (30) relative to the base (20), between a minimal position (63'), in which it does not enlarge the volume of the dosing chamber (40), and a maximal position (63"), in which it enlarges the volume of the dosing chamber (40) to a maximum extent, and,
    h. by virtue of the deflection of the deflectable dosing-chamber wall portion (62) in the direction of the maximal position (63"), an auxiliary volume is made available in the dosing chamber (40) through which, with the dosing chamber already filled with the first starting medium, the second starting medium can still be introduced into the dosing chamber (40) .
  2. Discharge head (110; 210) according to Claim 1, with the following additional feature:
    a. the deflectable dosing-chamber wall portion (62) is formed by a dimensionally flexible wall (62), or
    b. the deflectable dosing-chamber wall portion is formed by an inherently rigid, displaceable wall portion, in particular by a wall portion in a compensation piston which is arranged displaceably in a compensation cylinder of the dosing chamber.
  3. Discharge head (110; 210) according to one of the preceding claims, with the following additional features:
    a. in order to introduce the first starting medium into the dosing chamber (40), the dosing chamber (40) is connected to a first reservoir (12) for the first starting medium,
    b. a valve (13) that opens in a pressure-dependent manner is provided between the first reservoir (12) and the dosing chamber (40).
  4. Discharge head (110; 210) according to one of the preceding claims, with the following additional feature:
    a. in order to introduce the second starting medium into the dosing chamber (40), a feed mechanism (80) is provided that can be actuated by means of an auxiliary actuation handle (82).
  5. Discharge head (210) according to Claim 4, with the following additional features:
    a. the feed mechanism (80) has a feed pump (84) having an inlet (86) with inlet valve (87) and having an outlet (88) with outlet valve (89), and
    b. the inlet (86) of the feed pump (84) is connected to a second reservoir (14) for the second starting medium, and
    c. the outlet (88) of the feed pump is connected to the second inlet (44) of the dosing chamber (40) .
  6. Discharge head (110) according to Claim 4, with the following additional features:
    a. the feed mechanism (80) has a piston (90) which is displaceable in one direction in a feed cylinder, and which is displaceable in steps by means of the auxiliary actuation handle (82),
    preferably with the following additional feature:
    b. a sawtooth coupling (92) is provided between the auxiliary actuation handle (82) and the piston (90), which sawtooth coupling (92) enforces a movement of the piston (90) upon actuation of the auxiliary actuation handle (82) and permits an increase in the distance of the piston (90) from the auxiliary actuation handle (82) when the actuation handle (82) is reset.
  7. Discharge head (110; 210) according to one of Claims 4 to 6, with the following additional features:
    a. the feed mechanism (80) is designed to introduce a defined amount V of the second starting medium upon a single actuation of the auxiliary actuation handle (82), and
    b. the outlet (46) of the dosing chamber (40) is assigned an outlet valve (47) that opens in a pressure-dependent manner, and
    c. the feed mechanism (80) for introducing the second starting medium, the volume-compensating mechanism (60) and the outlet valve (47) of the dosing chamber (40) are coordinated in such a way that the volume-compensating mechanism can accept at least the amount V of the second starting medium without the outlet valve (47) thereby being opened, preferably at least the amount 3 x V, particularly preferably the amount 6 x V.
  8. Discharge head (110; 210) according to one of the preceding claims, with the following additional features:
    a. the deflectable dosing-chamber wall portion (62) of the volume-compensating mechanism (60) is provided on the displacer (30), and
    b. the displacer (30) is rigidly connected to a discharge actuation handle (64).
  9. Discharge head (110; 210) according to Claim 8, with the following additional feature:
    a. the deflectable dosing-chamber wall portion (62) is provided on the discharge actuation handle (64) in such a way that it is forced in the direction of its maximal position or in the direction of its minimal position by actuation of the discharge actuation handle (64).
  10. Discharge head (210) according to one of the preceding claims, with the following additional features:
    a. the deflectable dosing-chamber wall portion (62) is arranged in the dosing chamber (40) in such a way that it is forced in the direction of its maximal position or in the direction of its minimal position in the course of the actuation of the discharge actuation handle,
    in particular with the following additional features:
    b. the deflectable dosing-chamber wall portion (62) formed by a dimensionally flexible wall is configured in such a way that, when subjected to force, it can be deflected transversely with respect to the direction of actuation, and
    c. a portion (48) in the dosing chamber (40) is provided which cooperates with the deflectable dosing-chamber wall portion (62) and by which the deflectable dosing chamber wall (62) is deflected upon movement of the displacer (30).
  11. Discharge head (110; 210) according to one of the preceding claims, with at least one of the following additional features:
    a. the deflectable dosing-chamber wall portion (62) is provided on the discharge actuation handle (64) in the area of a finger support surface, or
    b. the deflectable dosing-chamber wall portion (62) is provided as a dimensionally flexible wall on the displacer or on the base, wherein the respective structural part is produced by two-component injection moulding, or
    c. the feed mechanism has a restoring spring mechanism which is assigned to the auxiliary actuation handle and which is preferably an integral part of the auxiliary actuation handle.
  12. Dispenser (100) for mixing two starting media and for discharging the mixed liquid that is thereby generated, with the following features:
    a. the dispenser has a first reservoir (12) and a second reservoir (14) for receiving the two starting media, and
    b. the dispenser has a discharge head (110; 210) according to one of the preceding claims.
  13. Dispenser (100) according to Claim 12, with the following feature:
    a. the first reservoir is filled with a skin cream.
EP15191981.8A 2015-10-28 2015-10-28 Discharge head and dispenser with such a discharge head Active EP3162449B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15191981.8A EP3162449B1 (en) 2015-10-28 2015-10-28 Discharge head and dispenser with such a discharge head
US15/336,211 US10343825B2 (en) 2015-10-28 2016-10-27 Discharge head and dispenser with such a discharge head
KR1020160140762A KR101913473B1 (en) 2015-10-28 2016-10-27 Discharge head and dispenser with such a discharge head
CN201610968668.4A CN106925466B (en) 2015-10-28 2016-10-28 Discharge head and distributor with this discharge head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15191981.8A EP3162449B1 (en) 2015-10-28 2015-10-28 Discharge head and dispenser with such a discharge head

Publications (2)

Publication Number Publication Date
EP3162449A1 EP3162449A1 (en) 2017-05-03
EP3162449B1 true EP3162449B1 (en) 2018-05-23

Family

ID=54366018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15191981.8A Active EP3162449B1 (en) 2015-10-28 2015-10-28 Discharge head and dispenser with such a discharge head

Country Status (4)

Country Link
US (1) US10343825B2 (en)
EP (1) EP3162449B1 (en)
KR (1) KR101913473B1 (en)
CN (1) CN106925466B (en)

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KR102124339B1 (en) * 2018-08-28 2020-06-18 함형길 A cosmetic container capable of controlling the mixing of contents
KR102052406B1 (en) * 2018-09-10 2019-12-05 주식회사 탭코리아 Cosmetic containers that can be mixed with liquid and bead-type cosmetics
CN113396018B (en) * 2019-02-08 2023-12-19 许利亚·托帕尔莱基尼 Fluid dispenser for dispensing cosmetic products

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Also Published As

Publication number Publication date
US20170121070A1 (en) 2017-05-04
KR20170049428A (en) 2017-05-10
EP3162449A1 (en) 2017-05-03
CN106925466A (en) 2017-07-07
US10343825B2 (en) 2019-07-09
CN106925466B (en) 2019-05-28
KR101913473B1 (en) 2018-10-30

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