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EP1674162A1 - Pompe de dosage avec un élément d'actionnement rotatif - Google Patents

Pompe de dosage avec un élément d'actionnement rotatif Download PDF

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Publication number
EP1674162A1
EP1674162A1 EP05112743A EP05112743A EP1674162A1 EP 1674162 A1 EP1674162 A1 EP 1674162A1 EP 05112743 A EP05112743 A EP 05112743A EP 05112743 A EP05112743 A EP 05112743A EP 1674162 A1 EP1674162 A1 EP 1674162A1
Authority
EP
European Patent Office
Prior art keywords
housing part
dosing pump
rotary sleeve
pump according
particular according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05112743A
Other languages
German (de)
English (en)
Other versions
EP1674162B1 (fr
Inventor
Haluk Cimentepe
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 Villingen GmbH
Original Assignee
Megaplast 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 Megaplast GmbH filed Critical Megaplast GmbH
Publication of EP1674162A1 publication Critical patent/EP1674162A1/fr
Application granted granted Critical
Publication of EP1674162B1 publication Critical patent/EP1674162B1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1005—Piston pumps with means for adjusting or modifying pump stroke
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • 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

Definitions

  • the invention relates to a metering pump according to the features of the preamble of claim 1. It is a total of a dispenser that outputs medium by pumping movement.
  • the metering pump may be made of plastic and the dispenser may be a paste dispenser.
  • the output of liquid medium is possible.
  • the medium that is to say the paste-like medium, is dispensed from a bottle, can or tube-like container with a follower piston, wherein a pumping organ conveying the medium consists of a spring-elastic, self-priming bellows provided with an automatic intake valve and an automatic outlet valve.
  • the bellows is preferably arranged between a cylindrical, dimensionally stable, immovably connected to the container, the lower housing part and an axially movable, also cylindrical and dimensionally stable upper housing part is arranged, which is compressible by the axial movement of the upper housing part for medium delivery.
  • Metering pumps of the generic type are known in many variations, for. B. DE 35 09178 A1, DE 8713 891.3 U1, DE 38 28 811 A1, DE 38 34 091 A1, DE 42 12 413C2, DE 38 44 854 C2, DE 40 41136 C2, EP 0 304 567 Bl, EP 312 722 B1.
  • outlet located in the movable housing part is directed radially outwards for the medium to be dispensed and is connected to the interior of the bellows by a substantially radially extending channel via an automatically closing outlet valve.
  • the outlet valve may be formed differently, for. B. in the form of an elastic ring cuff, the encloses an annular wall of the movable housing part, or as an axially movable plug, which sits under slight spring pressure on an annular valve surface and can be lifted off from this when a pumping stroke.
  • the intake valves which connect the interior of the bellows with the cavity of the medium container, can be designed differently.
  • actuation of the axially movable housing part takes place in such a way that a finger, preferably the thumb of a human hand, which includes the pump housing or the container, the front side presses on the movable housing part to perform a pumping stroke.
  • a finger preferably the thumb of a human hand, which includes the pump housing or the container
  • the front side presses on the movable housing part to perform a pumping stroke.
  • liquid applicator which has a crowned application surface, in the apex region of which an orifice for dispensing the medium is arranged.
  • This application surface also represents the actuating surface.
  • the actuation is not accomplished by a finger but by the fact that the spherical application surface is pressed directly onto the skin of a human body to be treated with the liquid. It is probably necessary to put the crowned surface obliquely, so that the completion of the discharge opening lift off forming valve stoppers from its valve seat in the axial direction and can allow fluid delivery. For the metered delivery pasty media, this liquid applicator is not suitable.
  • the container of this liquid applicator is not provided with a follower piston.
  • a hand-operated pump dispenser which can be placed on a fluid container and by means of a so-called. Nut on the threaded neck of a liquid container can be screwed.
  • this pump dispenser has an axially elastic bellows. However, this bellows is not operated directly for the execution of pumping strokes via an axially movable housing part. Rather, there are two threaded sleeves interconnected by threaded engagement, one of which is stationary but rotatable in the pump housing and the other axially movable but non-rotatable therein.
  • the axially movable sleeve is under the influence of an axial compression spring, which has to apply the output pressure for the fluid to be dispensed.
  • the stationary, but rotatably mounted sleeve is rotated to tension the compression spring, so that with simultaneous extension of the bellows, the movable sleeve moves away from the stationary sleeve.
  • the upper end of the bellows is connected to a housing part, in which a manually operated exhaust valve is arranged.
  • This outlet valve is connected to a dispenser spray head that can be pushed to open the outlet valve. When and as long as the outlet valve is opened, liquid is pressed out of the interior of the bellows through the spray head to the outside and sprayed by the pressure exerted by the compression spring on the bellows pressure liquid from the interior of the bellows.
  • the invention has for its object to provide a metering pump of the type mentioned, in which the pumping operation can be advantageously effected. This object is achieved in the subject matter of claim 1.
  • a rotary sleeve rotatably mounted in the lower housing part is preferably arranged, which is in engagement with the axially movable housing part via thread-like engagement elements, convert the rotational movements of the rotary sleeve in axial strokes of the upper housing part.
  • the axially movable housing part at the same time is also rotatable, for example in cooperation with a fixed outer or inner, the rotatable sleeve corresponding part.
  • the metering pump designed in this way has, above all, the advantage that medium is output directly accompanied by an (output) rotary movement.
  • the exhaust valve is forcibly opened by the (over) pressure generated by the rotary motion. After that, after reducing the (over) pressure, it closes automatically just as it has opened automatically. The same applies - vice versa - for the inlet valve. It is an advantageous rotary operation possible and at the same time a good dosage of the dispensed medium.
  • the reverse rotation which does not necessarily have to be a rotary motion, but in principle can be a vertical movement alone
  • no medium is output.
  • the individual pump strokes are carried out by rotating an actuating member, namely the rotary sleeve, so that no finger of the hand holding the container of the metering pump must rest on the end face of the metering pump. It is possible to attach the dispensing opening on the front side, preferably in the center thereof.
  • the cylindrical circumference of the axially movable housing part is provided with guide grooves, thread-like, whose axial length corresponds to the pumping stroke and in each of which engages a arranged on the inside of the rotary sleeve nut, not only results in a simple structure, but also a simple and easy handling or operation of the metering pump, the advantageous possibility is to produce all parts made of plastic by injection molding and to assemble automatically or automatically.
  • the guide grooves each extend a maximum of half the circumference of the movable housing part and / or the ends of the guide grooves are connected by axially extending connecting grooves with the beginning of the other guide groove, which required for the execution of a complete pumping stroke rotational movement 180 ° or 90 °, which also contributes to the ease of handling.
  • a self-contained, essentially sinusoidally extending guide groove, into which at least one nut arranged on the inner side of the rotary sleeve engages, and / or the measure that the guide groove extends in the circumferential direction over two wavelengths of a sinusoid, are advantageous solutions for this purpose.
  • a symmetrical course - with respect to a radial plane - of the guide groove and two diametrically opposed slot nuts are particularly advantageous for smooth operation.
  • the thread-like engagement elements consist of one or more threads. And more preferably on both cooperating parts, the movable housing part and the rotary sleeve.
  • the shape of a saw thread can be realized.
  • the pitch of the threads is preferably at least twice as large as the maximum pumping stroke of the movable housing part.
  • the absolute height of the thread is addressed with slope.
  • the maximum pumping stroke can be either half a turn or one quarter turn of the actuator, ie. H. the rotary sleeve, can be achieved. This especially if the said pitch of the threads corresponds to four times the pump stroke.
  • securing elements which engage positively in the circumferential direction and thus secure against relative rotation. This ensures that no torque is exerted on the bellows by the rotational movement of the rotary sleeve and the axially movable housing part can not turn itself with the rotation of the rotary sleeve.
  • the medium to be dispensed remains after a pumping stroke in a frontal depression of the end cap and can be easily removed from there with a finger.
  • the grip of the rotary sleeve can be increased by a handle knurl, and thus their operation can be facilitated by turning.
  • FIG. 1 shows a paste dispenser which is provided with a metering pump 1 forming the head part and has a cylindrical container 2. Both the metering pump 1 and the container are each made of plastic.
  • a bearing cage 5 for a valve plug 6 In the center of an upper end wall 4 of the container 2 is a bearing cage 5 for a valve plug 6, the annular disc circumference 7 in cooperation with a conical annular surface 8 of the bearing cage 5, a suction valve 5 '(Fig ).
  • An upwardly projecting annular wall 9 is used for sealing receiving a ring collar 10 at the lower end of a resilient bellows 11 made of plastic, the upper annular end wall 12 by means of a ring neck 13 a cylindrical guide sleeve 14 sealingly surrounds.
  • This guide sleeve 14 is an integral part of a cylindrical, upper housing part 15, which has an end wall 16, on which the guide sleeve 14 is integrally formed.
  • a cylindrical end cap 18 which has a dispensing opening 21 in a concavely recessed area 19 of an end wall 20, is fastened in an annular wall section 17 projecting upwards beyond the end wall 16.
  • FIGS. 10 to 12a The illustrated in Fig. 13 to 16 as a single part without end cap 18 upper housing part 15 is provided in the lower region of its cylindrical circumference with two diametrically opposed, thread-like extending guide grooves 26 whose axial length s corresponds to the pumping stroke of the housing part 15 and in which one on the cylindrical inner surface 31 of a cylindrical rotary sleeve 30 arranged nut 32 engages.
  • This rotary sleeve 30 is shown in FIGS. 10 to 12a as a single part.
  • this rotary sleeve 30 is rotatably and axially immovably mounted in an annular wall 27 of the integrally connected to the container 2 lower housing part 28, so that by their rotation relative to the upper housing part 15 due to the engagement of the sliding blocks 32 with the Guide grooves 26 an axial movement of the upper housing part 15 relative to the lower housing part 28 comes about.
  • the upper housing part 15 As best seen in FIGS. 6 and 7 can be seen, provided with two diametrically opposed, inwardly projecting axially parallel ribs 33 which in axially parallel guide slots 29 an inner, upstanding annular wall 34 of the lower housing part 28 engage.
  • annular wall 34 is arranged concentrically to the outer annular wall 27 and to the annular wall 9.
  • the guide grooves 26 can merge into each other in a sinusoidal manner as shown in FIG. But there is also the more advantageous possibility, 26 'to connect the ends of the two guide grooves each by axially parallel connecting grooves, so that in each case the beginning of a guide groove 26 is connected to the end of the other guide groove by such an axially extending connecting groove 26' , In this case, it is more advantageous to use cylindrical sliding blocks 32 as shown in FIG. 12a, while diamond-shaped sliding blocks 32 can be used in sinusoidal guide grooves 26 which merge into one another without any offset.
  • the axially extending connecting grooves 26' serve for the sliding blocks 32 at the same time as stroke-limiting stops.
  • the rotational movement of the rotary sleeve 30 is stopped.
  • the bellows 11 can relax again and push the housing part 15 back into its upper position.
  • the dosing pump is then immediately ready for a new pumping stroke, which can be effected by a rotation of the rotary sleeve 30 in the direction of arrow 40 (FIG. 17) by 180 °.
  • the guide grooves 26 each extend over half the circumference of the axially movable housing part 15 and thus the rotary sleeve 30 must be rotated to perform a full pumping stroke in each case by 180 °, as shown in FIG. 17a and the Possibility, the circumferential length of the guide grooves 26 to limit to a quarter of the circumference or at an angle of 90 °, so that in each case only rotational movements of the rotary sleeve 30 of 90 ° are required for the execution of a full pumping stroke.
  • the guide grooves 26, whose ends are connected to each other by axial Vietnamesesnuten 26 'as in the embodiment of Fig.17, the sliding blocks 32 each on the slope and width of both the guide grooves 26 and the connecting grooves 26' tuned cross-sectional shape have a rate or a rhombus, as shown in Fig. 17a hatched.
  • the upper, protruding from the annular wall 27 part of the rotary sleeve 30 is provided with a handle knurl 35.
  • the rotatable, but axially immovable mounted in the annular wall 27 of the lower housing part 28 rotary sleeve 30 has a lower portion 30 'with a smooth outer surface 31' on. Between the handle portion portion 35 and the smooth peripheral portion 31 'there is a radial annular shoulder 37 against which an inwardly projecting annular collar 38 of the annular wall 27 of the lower housing part 28 bears in a fixed manner. Characterized in that at the same time the lower end edge 39 of the rotary sleeve 30 is seated on the end wall 4, the rotary sleeve 30 is axially fixed within the region of the annular wall 27. Due to the material elasticity of the housing body made of plastic, the lower portion 30 'of the rotary sleeve 30 can be relatively easily inserted from above into the annular wall 27 to assume the position shown in Fig. 8 in the finished state.
  • the movable housing part 15/1 is shown as an individual part in FIGS. 28 and 29 and together with the end cap 18 in FIGS. 26 and 27.
  • the housing part 15/1 has an annular wall 17, in which the end cap 18 is inserted in the manner shown in FIGS. 3 and 8.
  • a lower portion of the circumference of the housing part 15/1 is provided with a multi-thread external thread 41 whose individual threads have the cross-sectional profile of a saw thread (such as. From DIN 513 and 514 known). From FIGS. 26 and 28, it can be seen that the outer diameter d of the external thread 41 is greater than the diameter of the outer diameter Ring wall 17, so that between these two an outwardly projecting flat annular shoulder 42 is formed at which the individual threads end.
  • the pitch of the threads or a height difference of a thread should be at least twice as large as the maximum pumping stroke of the movable housing part 15/1, so that a rotational movement of the rotary sleeve 30/1 180 ° is sufficient to perform a full pump stroke.
  • rotary sleeve 30/1 is provided at its upper end with a closed annular flange 44, which serves for the threads of the external thread 41 as an axial stroke stop on which the annular shoulder 42nd in the initial position or rest position of the movable housing part 15/1 abuts axially.
  • the internal thread 43 is open, so that the rotary sleeve can be screwed onto the external thread 41 from above.
  • a helical return spring 46 is disposed between the lower housing part 28 and the rotary sleeve, which in a recess 50 the lower end face 51 of the rotary sleeve 30/1 is housed.
  • This return spring 46 shown as an item in Fig. 24 has at its inner end a locking plate 47 which engages lockingly into one of the recesses 29 of the annular wall 34 of the lower housing part 28.
  • the outer end 48 of the return spring 46 is provided with an upwardly bent engagement pin 49 which engages positively in a slot-like recess 52 of the rotary sleeve 30/1.
  • the return spring 46 is on the one hand positively connected to the lower housing part 28 and on the other hand positively connected to the rotary sleeve 30/1, and they can perform with appropriate bias the reverse rotation of the rotary sleeve 30/1 after each pump stroke. If the thread pitch is chosen so that there is no self-locking, the restoring force of the bellows for turning back may be sufficient.
  • the axially movable housing part 15/1 is provided with inwardly projecting ribs 33, the form-fitting, but axially movable, engage in the guide slots 29 of the annular wall 34 of the lower housing part 28 and thereby rotational movements of the movable housing part 15/1 relative to prevent lower housing part 28.
  • the rotary sleeve 30/1 is mounted in the same manner in the annular wall 27 of the lower housing part 28 as the rotary sleeve 30 in the previously described embodiment and therefore also provided with an annular shoulder 37. Also, the handle knurl 35 is present in the same manner as in the rotary sleeve 30th
  • gripping grooves could also be provided, as shown in FIG.
  • a pumping stroke is also carried out here by a corresponding rotational movement of the rotary sleeve 30/1 while the container 2 or the housing base 28 is retained.
  • the return spring 46 After releasing the rotary sleeve 30/1 it is rotated back by the return spring 46 back to its original position and thereby the bellows 11 is relaxed again, wherein at the same time takes place during the relaxation process, a new suction for the issue with the next pump stroke medium.
  • the guide grooves have, as can also be seen in FIGS. 14 and 16, an insertion bevel in the lower region, so as to allow the overflow of the sliding block during assembly.
  • the sleeve at least in the region of the sliding block, be formed double-walled. This also increases the flexibility of the sliding block when overflowing the insertion and snapping into the guide grooves.
  • the sleeve is also preferably provided such that, in the case of the double wall with its outer wall, the annular wall 27 engages over the outside.
  • the annular wall 27 engages over the outside.
  • two (respectively) two correspondingly spaced-apart ribs can also be formed.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP05112743A 2004-12-22 2005-12-22 Pompe de dosage avec un élément d'actionnement rotatif Ceased EP1674162B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202004019763U DE202004019763U1 (de) 2004-12-22 2004-12-22 Dosierpumpe für Pastenspender

Publications (2)

Publication Number Publication Date
EP1674162A1 true EP1674162A1 (fr) 2006-06-28
EP1674162B1 EP1674162B1 (fr) 2008-04-30

Family

ID=34259004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05112743A Ceased EP1674162B1 (fr) 2004-12-22 2005-12-22 Pompe de dosage avec un élément d'actionnement rotatif

Country Status (2)

Country Link
EP (1) EP1674162B1 (fr)
DE (2) DE202004019763U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2433970A1 (fr) 2010-09-28 2012-03-28 Cargill, Incorporated Procédé en microfluidique pour préparer un polycondensat
WO2017211585A1 (fr) 2016-06-07 2017-12-14 Unilever Plc Distributeur de fluide
US10752412B1 (en) 2019-11-06 2020-08-25 Berlin Packaging, Llc Child resistant container with pump actuator
USD920805S1 (en) 2019-05-30 2021-06-01 Berlin Packaging, Llc Container with pump actuator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007002677U1 (de) 2007-02-23 2008-07-03 Megaplast Gmbh & Co. Kg Spender für flüssige bis pastöse Massen
DE202013103492U1 (de) * 2013-08-02 2014-11-04 Slawomir Baranski Spender zur Ausgabe flüssiger bis pastöser Massen
CA2931820A1 (fr) * 2013-11-26 2015-06-04 Acrux Dds Pty Ltd. Dispositif de distribution et de d'application d'un liquide
CA2931823A1 (fr) * 2013-11-26 2015-06-04 Acrux Dds Pty Ltd. Dispositif de distribution et de dispersion d'un liquide
EP3597072B1 (fr) * 2018-07-18 2020-11-18 Aptar Radolfzell GmbH Tête distributrice pour un diffuseur de massage et diffuseur de massage doté d'une telle tête distributrice

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842073A1 (de) * 1977-09-27 1979-04-05 Unilever Nv Handbetaetigter pumpdispensor
DE4041136A1 (de) * 1990-12-21 1992-07-02 Andris Raimund Gmbh & Co Kg Dosier- und spraypumpe zur abgabe fluessiger, niederviskoser und pastoeser stoffe
EP1170062A2 (fr) * 2000-07-03 2002-01-09 RPC Bramlage GmbH Pompe de distribution

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842073A1 (de) * 1977-09-27 1979-04-05 Unilever Nv Handbetaetigter pumpdispensor
DE4041136A1 (de) * 1990-12-21 1992-07-02 Andris Raimund Gmbh & Co Kg Dosier- und spraypumpe zur abgabe fluessiger, niederviskoser und pastoeser stoffe
EP1170062A2 (fr) * 2000-07-03 2002-01-09 RPC Bramlage GmbH Pompe de distribution

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2433970A1 (fr) 2010-09-28 2012-03-28 Cargill, Incorporated Procédé en microfluidique pour préparer un polycondensat
WO2017211585A1 (fr) 2016-06-07 2017-12-14 Unilever Plc Distributeur de fluide
USD920805S1 (en) 2019-05-30 2021-06-01 Berlin Packaging, Llc Container with pump actuator
US10752412B1 (en) 2019-11-06 2020-08-25 Berlin Packaging, Llc Child resistant container with pump actuator

Also Published As

Publication number Publication date
DE202004019763U1 (de) 2005-03-03
EP1674162B1 (fr) 2008-04-30
DE502005003899D1 (de) 2008-06-12

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