EP0484835A1 - Distributeur de fluide - Google Patents

Distributeur de fluide Download PDF

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Publication number
EP0484835A1
EP0484835A1 EP91118678A EP91118678A EP0484835A1 EP 0484835 A1 EP0484835 A1 EP 0484835A1 EP 91118678 A EP91118678 A EP 91118678A EP 91118678 A EP91118678 A EP 91118678A EP 0484835 A1 EP0484835 A1 EP 0484835A1
Authority
EP
European Patent Office
Prior art keywords
pump
chamber
valve
piston
discharge device
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
EP91118678A
Other languages
German (de)
English (en)
Other versions
EP0484835B1 (fr
Inventor
Stefan Ritsche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0484835A1 publication Critical patent/EP0484835A1/fr
Application granted granted Critical
Publication of EP0484835B1 publication Critical patent/EP0484835B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/107—Gate valves; Sliding valves
    • 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
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers

Definitions

  • the invention relates to a discharge device for media, which has a housing and an actuation for carrying out a single or a plurality of discharge processes.
  • the discharge device is independent of whether it is designed as a manually opening outlet valve for pressure accumulators and / or as a discharge pump to be operated manually via a pump stroke, provided with one or more separate media guides, which generally lead from one media store to one leading to the outside Exhaust opening are guided.
  • the media guide can include the media store, the valve closing surfaces, possibly an inlet channel leading to these and an outlet channel leading from these to the outlet opening, and the outlet opening itself.
  • Valves, resets and similar functional units of discharge devices mostly contain metallic parts, e.g. Valve bodies, return springs or the like., The metallic surface of which can lead to undesirable reactions in numerous media, in particular pharmaceutical and / or cosmetic media, when they come into contact with these surfaces. Media can also damage such parts if chemical reactions occur. This applies in particular to liquid or paste-like media, but such disadvantages can also arise with other flowable media.
  • At least one of possibly several media guides is essentially completely free of metallic surfaces and preferably exclusively bounded by surfaces consisting of plastic, glass, ceramic materials and / or the like.
  • the discharge device expediently nevertheless contains metallic components where the function can be improved by such components. This applies in particular to the use of at least one, preferably a single return spring, because such return springs made of metal usually have much better properties than return springs made of other materials.
  • the object on which the invention is based can also be achieved independently of the design described, in particular in the case of a discharge device with a pump, in that an inner casing of the housing lying approximately in the pump axis is sealed with respect to the media guide is closed and thus communicates neither with the suction or inlet channel nor with the outlet channel or the pump chamber.
  • the media inlet in the housing is laterally offset from the inner jacket in such a way that the enclosed space is bypassed by the inflowing medium. This enables a particularly effective and rapid filling of the housing to be achieved even if the inlet opening opening into the housing is designed to be valve-free.
  • the auxiliary piston carries a valve body which is formed in one piece with it and which can be controlled in a pressure-dependent manner in that the auxiliary piston is exposed to the pressure in the pump chamber on its side facing away from the closed chamber.
  • the inner jacket can with its free end at the same time form the pump piston surrounding this valve body, which is overlapped by the pump cylinder to be moved with the discharge actuation, which in turn carries a suction piston on the outer circumference and is penetrated by an outlet channel in an end wall having the valve seat of the outlet valve, which is expediently essentially in an actuating plunger extending from this end wall.
  • the housing 2 has a bottom wall 24, which lies approximately in the plane of the support flange 10, closes the ring or pre-suction chamber 15 at one end and from the inside of which the outer jacket 13 and the inner jacket 14 protrude freely in one piece.
  • the bottom wall 24 is provided with a cup-shaped projection 25 protruding from its outside, through which the spring chamber 22 is correspondingly extended and in which the associated end of the return spring 21 is supported, as well as centered, inside the cup-shaped auxiliary piston 23.
  • the cylinder jacket 16, the pump piston 18, the auxiliary piston 23 and the end wall 27 delimit the pump chamber 39, which is ring-shaped in cross section and which is connected to the pre-suction chamber 15 via an intermediate valve 30 which operates in a stroke-dependent manner.
  • Whose valve parts are integrally formed with the pump piston 18 or the cylinder jacket 16 and the pre-suction piston 17 and work as a slide valve.
  • longitudinal slots are provided which connect the pre-suction chamber 15 to the pump chamber 39 until the pump piston 18 has carried out the first half of its pumping stroke or the last half of its return stroke; valve 30 is closed on the remaining partial stroke.
  • the bottom wall of the pre-suction chamber 15 is penetrated by an inlet opening 31, which is thus at a distance from the front end of the pre-suction piston 17 essentially in every position and is not offset inwards relative to the bottom wall 24.
  • the inlet opening 31 is connected to the bottom region of the media store 3 via an inlet channel 32.
  • a riser pipe 33 which essentially forms the inlet channel 32, is inserted into a plug connection 34 of the base body 9 lying outside the pump axis and approximately parallel to it, and can extend approximately into the region of the bottom wall 24.
  • a sleeve extension 35 of the base body 9 which has a smaller width than the outer jacket 13 and a larger width than the inner jacket 14 and which is relatively closely matched to the inside width of the neck 4, so that it only with a small gap distance from its inner circumference.
  • the sleeve extension 35 protrudes beyond the projection 25 located in it, which forms with a jacket area a subsequent jacket area of the sleeve-shaped plug connection 34, the jacket area facing away from it is formed by a jacket section of the sleeve extension 35, so that the plug connection 34 is directly on the inside of the sleeve extension 35 lies.
  • the riser pipe 33 can thereby extend over a longitudinal section extend the discharge device, over which the return spring 21 also extends.
  • the inner circumference of the displacement projection 36 is relatively closely matched to the outer circumference of the hollow jacket-shaped and, at the end, conically closed valve body 38 of the outlet valve 26, which engages in the recess in the end wall 27 delimited by the displacement projection 36, and defines an annular gap with the inner circumference of the displacement body 36 and opens and closes with its conical end the valve seat lying on the recess bottom.
  • the valve body 38 projects in one piece towards the rear over the auxiliary piston 23, projects beyond the free end of the pump piston 18 and has a smaller width than the auxiliary piston 23, so that it protrudes without contact.
  • the auxiliary piston 23 including the valve body 38 is moved against the bottom wall 24, so that the valve body 38 lifts off the valve seat and the outlet valve 26 opens.
  • the displacement projection 36 penetrates fully into the opening 37, so that the medium is pressed out into the outlet channel 28.
  • the end of the pump piston 18 strikes the inside of the end wall 27 and / or the end of the pre-suction piston 17 hits the inside of the bottom wall 24, the pressure in the pump chamber 39 dropping due to the outflowing medium.
  • the inlet opening 31 and the inlet channel 32 do not require any special inlet valve, so that the line connection between the media store 3 and the pre-suction chamber 15 is always open.
  • the pump chamber 39 is filled from the outside radially inwards or from a larger-volume pre-suction chamber 15 to a smaller-volume pump chamber 39, since the pre-suction chamber 15 at least partially surrounds the pump chamber 39 in an axial view. Since the displacement projection 36 in the pump stroke end position essentially completely fills the opening 37, the remaining amount of medium remaining in the pump chamber 39 is very small. Due to the valve body 38 slidably mounted on the pump piston 18, the bottom wall of the pump chamber 39 formed by the end wall 27 and opposite the pump piston 18 can be formed in one piece with the cylinder jacket 16, this bottom wall being axially spaced from the bottom wall 24.
  • a pressure relief 40 can also be provided for the spring chamber 22.
  • the Bottom wall 24 expediently passes through in a region diametrically offset from inlet opening 31, for example, by a transverse channel 41 lying approximately at right angles to the pump axis, bottom wall 24 in this region being able to form a projection projecting beyond its inside into pre-suction chamber 15.
  • the transverse channel 41 also passes through the free end of the casing of the cover body 11 or its snap connection, so that it opens onto the inside of the cap 8, which forms an exit to the outside.
  • the cover body 11 Following the free end of the outer casing 13, the cover body 11 forms a section with a reduced width, on the inner circumference of which the cylinder casing 16 can be guided to a relatively large length with its outer circumference narrower than the inner circumference of the outer casing 13. Adjacent to this guide area, the cover body 11 forms an annular end wall, which is penetrated by the actuating plunger 19 or a plug-in connector of the discharge head 6 and on the inside of which the cylinder jacket 16 strikes in the starting position with a substantially flat surface of the outside of its end wall 27.
  • the inside of the annular transition section between the two jacket sections of the lid body 11 expediently strikes the free end face of the outer jacket 13.
  • the pump piston 18 protruding beyond the free end of the outer jacket 13 can lie essentially in any position in the longitudinal region of the narrower jacket section of the cover body 11, on which the cylinder jacket 16 is guided in any position.
  • a vent 42 is provided on the discharge device 1, one between the further jacket section of the lid body 11 and the Has outer casing 13 lying ventilation channel 43 which penetrates the support flange 10 on the outside of the sleeve extension 35 and in the region of an opening of a seal which lies between the support flange and the end face of the neck 4.
  • the ventilation channel 43 opens into an annular space 44 on the side of the suction piston 17 facing away from the suction chamber 15 on the outer circumference of the cylinder jacket 16. From this chamber 44, a ventilation channel 45 leads to the opening between the inner circumference of the narrower jacket section of the cover body 11 and the outer circumference of the cylinder jacket 16 in the end wall of the lid body 11 and thus outside.

Landscapes

  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Closures For Containers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Photographic Developing Apparatuses (AREA)
EP91118678A 1990-11-09 1991-11-01 Distributeur de fluide Expired - Lifetime EP0484835B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4035663 1990-11-09
DE4035663A DE4035663A1 (de) 1990-11-09 1990-11-09 Austragvorrichtung fuer medien

Publications (2)

Publication Number Publication Date
EP0484835A1 true EP0484835A1 (fr) 1992-05-13
EP0484835B1 EP0484835B1 (fr) 1995-03-29

Family

ID=6417948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118678A Expired - Lifetime EP0484835B1 (fr) 1990-11-09 1991-11-01 Distributeur de fluide

Country Status (6)

Country Link
US (1) US5437398A (fr)
EP (1) EP0484835B1 (fr)
JP (1) JP3157879B2 (fr)
AT (1) ATE120385T1 (fr)
DE (2) DE4035663A1 (fr)
ES (1) ES2070392T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004054722A1 (fr) * 2002-12-13 2004-07-01 Incro Limited Systemes de buses a mouvement de pompe
WO2010004212A1 (fr) * 2008-07-10 2010-01-14 Valois Sas Dispositif de distribution de produit fluide
CN103402650A (zh) * 2010-03-17 2013-11-20 Ipnip有限公司 具有部分分配装置的容器
WO2018108535A1 (fr) * 2016-12-12 2018-06-21 Aptar Dortmund Gmbh Pompe et dispositif de distribution
WO2021009324A1 (fr) * 2019-07-18 2021-01-21 Gb Developpement Distributeur de fluide
FR3098734A1 (fr) * 2019-07-18 2021-01-22 Gb Developpement Distributeur de fluide

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2754316B1 (fr) * 1996-10-04 1998-11-13 Teleplastics Ind Pompe a precompression pour la distribution de doses liquides et distributeur la comportant
DE19807922A1 (de) 1998-02-25 1999-08-26 Pfeiffer Erich Gmbh & Co Kg Spender für Medien
US6186368B1 (en) * 1999-05-26 2001-02-13 Michael Gene Knickerbocker Manually actuated pump assembly
DE19960459A1 (de) 1999-12-15 2001-06-21 Pfeiffer Erich Gmbh & Co Kg Spender für Medien
CN103930219B (zh) 2011-09-20 2017-12-05 分配技术有限公司 一种液体分配装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2133259A5 (fr) * 1971-04-08 1972-11-24 Step
FR2497774A1 (fr) * 1980-12-11 1982-07-16 Normos Norbert Procede et dispositif d'ejection de liquide
GB2141186A (en) * 1983-06-08 1984-12-12 Douglas Frank Corsette Manually actuated pump having pliant piston
EP0364385A2 (fr) * 1988-10-10 1990-04-18 Monturas S.A. Pompe de pulvérisation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE568895C (de) * 1931-03-22 1933-01-25 Moenus Maschf Rundflechtmaschine
US3146920A (en) * 1962-03-08 1964-09-01 Mead Johnson & Co Dispenser for metered amounts of fluid
AU471702B2 (en) * 1973-06-26 1976-04-29 Precision Valve Australia Pty. Limited Pump
US3908870A (en) * 1973-11-15 1975-09-30 Yoshino Kogyosho Co Ltd Manual-type miniature atomizer
US4050613A (en) * 1976-08-31 1977-09-27 Corsette Douglas Frank Manual actuated dispensing pump
US4154374A (en) * 1977-10-03 1979-05-15 Ethyl Products Company Finger operated spray pump
US4183449A (en) * 1978-01-09 1980-01-15 The Afa Corporation Manually operated miniature atomizer
US4305530A (en) * 1978-01-23 1981-12-15 Yoshino Kogyosho Co., Ltd. Liquid atomizer
JPS6032505B2 (ja) * 1979-03-19 1985-07-29 株式会社吉野工業所 液体噴霧器
US4494680A (en) * 1980-02-13 1985-01-22 Corsette Douglas Frank Manually operated dispensing pump
DE3636013A1 (de) * 1986-10-23 1988-05-05 Henkel Kgaa Spender fuer pastenartiges produkt
EP0277388B1 (fr) * 1987-01-16 1994-03-30 ZILIO, Tiziano Boîte en matière plastique destinée à contenir des boîtages de sachets en polyéthylène à usage hygiénique, assemblés par double pliage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2133259A5 (fr) * 1971-04-08 1972-11-24 Step
FR2497774A1 (fr) * 1980-12-11 1982-07-16 Normos Norbert Procede et dispositif d'ejection de liquide
GB2141186A (en) * 1983-06-08 1984-12-12 Douglas Frank Corsette Manually actuated pump having pliant piston
EP0364385A2 (fr) * 1988-10-10 1990-04-18 Monturas S.A. Pompe de pulvérisation

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004054722A1 (fr) * 2002-12-13 2004-07-01 Incro Limited Systemes de buses a mouvement de pompe
WO2010004212A1 (fr) * 2008-07-10 2010-01-14 Valois Sas Dispositif de distribution de produit fluide
FR2933679A1 (fr) * 2008-07-10 2010-01-15 Valois Sas Dispositif de distribution de produit fluide.
CN102089081A (zh) * 2008-07-10 2011-06-08 瓦卢瓦有限合伙公司 流体产品分配装置
CN103402650A (zh) * 2010-03-17 2013-11-20 Ipnip有限公司 具有部分分配装置的容器
CN103402650B (zh) * 2010-03-17 2016-07-20 Ipnip有限公司 具有部分分配装置的容器
WO2018108535A1 (fr) * 2016-12-12 2018-06-21 Aptar Dortmund Gmbh Pompe et dispositif de distribution
US10953420B2 (en) 2016-12-12 2021-03-23 Aptar Dortmund Gmbh Pump and dispensing device
WO2021009324A1 (fr) * 2019-07-18 2021-01-21 Gb Developpement Distributeur de fluide
FR3098734A1 (fr) * 2019-07-18 2021-01-22 Gb Developpement Distributeur de fluide
US11925947B2 (en) 2019-07-18 2024-03-12 Gb Developpement Fluid dispenser

Also Published As

Publication number Publication date
ES2070392T3 (es) 1995-06-01
JPH04282084A (ja) 1992-10-07
EP0484835B1 (fr) 1995-03-29
ATE120385T1 (de) 1995-04-15
DE59105049D1 (de) 1995-05-04
DE4035663A1 (de) 1992-05-14
JP3157879B2 (ja) 2001-04-16
US5437398A (en) 1995-08-01

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