EP0484835B1 - Distributeur de fluide - Google Patents

Distributeur de fluide Download PDF

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Publication number
EP0484835B1
EP0484835B1 EP91118678A EP91118678A EP0484835B1 EP 0484835 B1 EP0484835 B1 EP 0484835B1 EP 91118678 A EP91118678 A EP 91118678A EP 91118678 A EP91118678 A EP 91118678A EP 0484835 B1 EP0484835 B1 EP 0484835B1
Authority
EP
European Patent Office
Prior art keywords
pump
chamber
valve
piston
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91118678A
Other languages
German (de)
English (en)
Other versions
EP0484835A1 (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 according to the preamble of claim 1. It is intended for media and has a housing and an actuation for carrying out a single or more discharge processes.
  • the discharge device is independent of whether it is designed as a manually opening outlet valve for pressure accumulators or as a discharge pump to be operated manually via a pump stroke, provided with one or more separate media guides, which as a rule lead from a media store to an outlet opening leading to the outside are. If the discharge device is formed essentially only by at least one outlet valve, 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.
  • the media guide includes the pump chamber, which may be provided solely as a media store, and usually also at least one valve, at least one inlet valve, at least one intermediate valve and / or at least one outlet valve being able to be provided.
  • the discharge device can be used for one-handed use Use and be trained for manual operation only.
  • 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.
  • a discharge device with a media inlet which opens through the jacket of a pumping chamber into this pumping chamber.
  • the inlet lies at a distance from the bottom wall of the pumping chamber and is connected to a media channel which is delimited between two nested bodies.
  • the invention has for its object to provide a discharge device of the type mentioned, in which disadvantages of known designs or the type described are avoided and which is particularly suitable for storing and discharging relatively reactive or aggressive media.
  • the discharge device is designed according to claim 1.
  • at least one of possibly several media guides is essentially completely free of metallic surfaces and preferably excludes them Limited surfaces that consist of plastic, glass, ceramic materials and / or the like .
  • the discharge device still expediently 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 respective metallic component is advantageously arranged completely outside of the media guide in a receiving chamber sealed with respect to it, so that the component as a whole cannot come into contact with the medium.
  • this receiving chamber can be resized so that the spring can take effect via the spring stroke.
  • the spring chamber can be delimited by a cylinder and an auxiliary piston which can be displaced therein, the auxiliary piston transmitting the spring forces.
  • only a single return spring is provided, while all other components of the discharge device or at least those that come into contact with the medium consist of plastic or one of the non-metallic materials mentioned.
  • 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 jacket 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 casing 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 inlet opening expediently opens into a chamber which surrounds the inner jacket in a ring, which can be designed as a pre-suction chamber and is connected to a pump chamber via an intermediate valve. If this intermediate valve is controlled as a function of the respective position of the discharge actuation, it can be closed very precisely at the beginning of the delivery stroke.
  • the return spring can simultaneously serve to reset the discharge actuation or an actuation handle of the mutually movable pump units consisting of pump pistons and pump cylinders or the like, as well as to return at least one valve to an initial position.
  • the return spring expediently opens the intermediate valve during the return, while it closes the outlet valve at the beginning of the return stroke and returns the discharge actuation to the starting position via the valve closing surfaces.
  • the auxiliary piston carries a valve body formed in one piece with it, 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 simultaneously form the valve 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 closed chamber can extend outwards beyond a bottom wall or a support flange of the housing and thereby overlap with the projecting part the associated end of the inlet channel or a riser or suction pipe and its plug connection, so that there is a very small axial extent of the pump results. It is also conceivable to provide several chambers, pump chambers or the like which are sealed off from the media guide.
  • a ventilation channel expediently bypasses all areas that come into contact with the medium, such as the media reservoir, the pump chamber, the pre-suction chamber or the like, in which the ventilation channel acts as a transverse channel from the closed chamber directly to the outside of the housing and outside.
  • the ventilation duct can connect approximately to the level of the inside of the housing base. If such pressure relief is not provided, the auxiliary piston can work together with the closed chamber in the manner of a gas pressure spring.
  • Ventilation for the media reservoir and / or the housing space located behind the suction piston and not acted upon by the medium can be formed by an aeration channel be located on part of its length between overlapping housing parts of the housing and on a further part of its length between one of these housing parts and the pump part to be moved with the discharge actuation, these two sections connecting to the annular space behind the suction piston.
  • the discharge device 1 has a housing 2 consisting of only two housing parts spanning the greater part of its length, which is to be fastened to the neck 4 of a media store 3 and at the end remote from it a discharge actuation 5 with a manually linear finger pressure moving discharge head 6 carries.
  • a thrust piston pump 7 is arranged in the housing 2, the pump parts of which are connected to the discharge head 6 a pump stroke is to be moved against each other.
  • the housing 2 has a hollow base body 9 with a support flange 10 projecting annularly over the outer circumference, which is clamped against the neck 4 with a cap 8 essentially surrounding the housing 2.
  • the base body 9 is closely enclosed on its outer circumference by a cup-shaped cover body 11 approximately over its entire length adjoining the support flange.
  • the support flange 10 forms an annular groove 12 into which the free end of the casing of the cover body 11 engages and is secured, for example, with a snap connection.
  • the base body 9 forms an outer casing 13 which delimits the annular groove 12 on the inner circumference and is closely enclosed by the cover body 11, as well as a slightly longer inner casing 14 lying radially within it, between which an annular space is delimited to form a pre-suction chamber 15.
  • the pre-suction piston 17 runs close to the inner circumference of the outer casing 13. With its inner circumference, the cylinder casing 16 forms a cylinder raceway for a pump piston 18, which is formed by a sealing lip at the free end of the inner casing 15.
  • the cylinder jacket 16 or the pre-suction piston 17 is connected via an actuating plunger 19 to the discharge head 6 by a plug connection.
  • a reset 20 is provided, which is essentially within the outer jacket 13 and the inner jacket 14 has return spring 21 lying. This lies in a sealed spring chamber 22, which is delimited at its end remote from the media store 3 by an auxiliary piston 23, which is guided with two axially adjacent sealing lips on the inner circumference of the inner jacket 14.
  • 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 project 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 in the center of the cup-shaped auxiliary piston 23.
  • the free end of the inner jacket 14 or the pump piston 18 is opposite an outlet valve 26, the valve seat of which is provided approximately in the pump axis on the inside of an end wall 27 of the cylinder jacket 16, which, like the actuating plunger 19 adjoining it, is penetrated by an outlet channel 28.
  • the outlet channel 28 leads to the outlet opening 29 provided on the actuating and discharge head 6, which can be formed by a nozzle.
  • the return spring 21 loads the outlet valve 26 to the closed position.
  • 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 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 thus is at a distance from the front end of the pre-suction piston 17 essentially in any 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 lies 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 region a subsequent jacket region of the sleeve-shaped plug connection 34, the jacket region thereof facing away from which 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.
  • annular displacement projection 36 which is conical on the outer circumference at an acute angle and essentially cylindrical on the inner circumference, the outer circumference of which is at a distance from the cylinder raceway and is associated with a complementarily adapted, funnel-shaped opening 37 on the pump piston 18. which is formed by the inner circumference of the piston lip.
  • 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 delimited by the displacement projection 36 in the end wall 27 and delimits 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 discharge device 1 works according to the following method: In the initial position, the pre-suction piston 17 and the auxiliary piston 23, which have approximately the same axial extent, lie essentially in the same longitudinal section of the discharge device, while the pump piston 18 lies closer to the discharge head 6 at an axial distance therefrom.
  • the pump chamber 39 which is assumed to be filled with medium, is narrowed, so that when the outlet valve 26 is closed, medium is first drawn out of the pump chamber 39 via the Valve 30 is pressed back into the pre-suction chamber 15 and into the media storage 3.
  • 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 completely 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 medium flowing out.
  • the auxiliary piston 23 is moved back into its closed position under the force of the return spring 21, as a result of which the pump chamber is narrowed again and medium is pressed under pressure into the outlet channel 28 during the closing of the valve 26, so that there is another pump surge at the end of the discharge. through which dripping of the medium from the outlet opening 29 can be avoided.
  • valve body 38 is now in contact with the movable pump part. If this pump part is released by releasing the discharge head 6, then it is moved back into its starting position by the return spring 21 via the valve surfaces of the outlet valve 26 lying against one another. During this return stroke, namely until the valve 30 opens, a negative pressure is built up in the pump chamber 39 and then suddenly the connection between the pump chamber 39 and the pre-suction chamber 15 is established by opening the valve 30. At the same time, the pre-suction chamber 15 is expanded during the return stroke and, as a result, medium is sucked into the pre-suction chamber 15 via the inlet channel 32 from the media store 3.
  • the inlet opening 31 or the inlet channel 32 does 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 penetrates 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 over the inside into the 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 in the starting position strikes 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 cover body 11 expediently strikes the free end face of the outer jacket 13.
  • the pump piston 18 protruding over 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 passes through 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.
  • this end wall can be formed by an annular projection, so that there is an essentially tight contact and the ventilation 42 is closed like a valve in the starting position of the discharge device 1. At the beginning of the actuation stroke, this common ventilation valve for the annular space 44 and the media store 3 is opened.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Closures For Containers (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (10)

  1. Distributeur pour fluides, comprenant un corps (2) et une commande de distribution (5), un système de guidage de fluide prévu entre un réservoir de fluide (3) et un orifice de sortie (29), ainsi qu'au moins une chambre (15) située dans le système de guidage de fluide et présentant une admission de fluide (31) latéralement décalée par rapport à son axe central et une paroi de fond (24), avec prévision d'au moins un dispositif de rappel (20) de la commande de distribution (5), dispositif qui possède au moins un ressort de rappel (21) disposé essentiellement de façon protégée, caractérisé en ce que l'admission de fluide (31) traverse la paroi de fond (24) et débouche dans la chambre (15).
  2. Distributeur selon la revendication 1, caractérisé en ce que le système de guidage de fluide est essentiellement exempt de surfaces métalliques et/ou au moins un ressort de rappel (21) se trouve dans une pompe de distribution (7), au moins un ressort de rappel (21) étant disposé dans une chambre de ressort (22) fermée essentiellement de manière étanche vis-àvis du système de guidage de fluide, ressort qui, en particulier sous la forme d'un ressort hélicoïdal de compression, est appuyé approximativement dans l'axe de la pompe sur un piston auxiliaire (23) guidé sur une portée de la chambre de ressort (22) et qui transmet la force de rappel à l'une des deux parties de pompe déplaçables l'une par rapport à l'autre.
  3. Distributeur selon la revendication 2, caractérisé en ce qu'un canal d'admission (32) pour une chambre de pompe (39) de la pompe de distribution (7), canal qui forme un orifice d'admission (31) de l'admission de fluide, débouche dans la pompe en un point décalé latéralement par rapport à une chambre de ressort (22) et/ou un axe de pompe, en particulier dans ladite chambre (15), réalisée comme une chambre de pré-aspiration de forme annulaire, qui est reliée par une soupape intermédiaire (30) à la chambre de pompe (39), une délimitation intérieure de la chambre de pré-aspiration (15) coïncidant essentiellement avec une délimitation extérieure de la chambre de pompe (39) et/ou la chambre de pré-aspiration (15) et la chambre de pompe (39) étant situées axialement l'une derrière l'autre.
  4. Distributeur selon une des revendications précédentes, caractérisé en ce que la pompe de distribution (7) présente au moins une paroi latérale intérieure (14) faisant librement saillie à partir d'une paroi de fond (24) du corps de distributeur, en particulier d'un corps de cylindre, paroi latérale qui délimite en partie une chambre de pompe (39), dont l'extrémité coordonnée à la paroi de fond (24) est fermée de façon essentiellement étanche vis-à-vis du système de guidage de fluide et qui reçoit le piston auxiliaire (23), pénètre dans un piston de pré-aspiration (17) et/ou forme par son extrémité libre un piston de pompe (18).
  5. Distributeur selon une des revendications précédentes, caractérisé en ce que le dispositif de rappel (20), constitué en particulier par un seul ressort de rappel (21), est prévu pour ramener la pompe de distribution (7) et/ou au moins une soupape (26, 30) à une position de repos ou de départ, ou pour ramener une soupape de sortie (26) à une position de fermeture et/ou la soupape intermédiaire (30) à une position d'ouverture, le piston auxiliaire (23) portant de préférence un clapet (38) qui est chargé par le ressort de rappel (21) dans le sens de son application contre un siège de soupape dans la direction de rappel de la pompe de distribution (7).
  6. Distributeur selon la revendication 4 ou 5, caractérisé en ce que la paroi latérale intérieure (14) ou au moins une paroi latérale intérieure (14) délimite par son extrémité libre, conjointement avec l'extrémité coordonnée du piston auxiliaire (23), un côté d'extrémité de la chambre de pompe (39) et est entourée du piston de pré-aspiration (17), lequel forme la périphérie, le côté d'extrémité opposé de la chambre de pompe (39), le siège d'une soupape de sortie (26) et/ou une partie de la soupape intermédiaire (30), laquelle est réalisée de préférence comme une soupape de commande qui se ferme en fonction du mouvement d'actionnement et est définie par la périphérie intérieure d'un corps de cylindre (16) du piston de pré-aspiration (17) et une lèvre du piston de pompe (18).
  7. Distributeur selon une des revendications 4 à 6, caractérisé en ce qu'un clapet (38) d'une soupape de sortie (26) dépasse de l'extrémité libre de la paroi latérale intérieure (14), ou d'au moins une paroi latérale intérieure (14), et/ou une avancée de refoulement (36) est prévue en vis-a-vis de cette extrémité libre sur le côté d'extrémité coordonné de la chambre de pompe (39), en vue de sa pénétration dans un segment terminal évasé en entonnoir de la paroi latérale intérieure (14), le siège de la soupape de sortie (26) étant situé dans la paroi d'extrémité (27) du piston de pré-aspiration (17), lequel est en forme de coupelle, et ce siège étant entouré de l'avancée de refoulement (36).
  8. Distributeur selon une des revendications 2 à 7, caractérisé en ce que le corps de distributeur (2) présente à sa périphérie extérieure une bride d'appui (10) pour l'appui sur le réservoir de fluide (3) et est composé d'une pièce de base (9) et d'un couvercle (11) qui entoure cette pièce de base à la périphérie extérieure, à peu près jusqu'à la bride d'appui (10), le couvercle (11) pénétrant de préférence par une extrémité dans une gorge annulaire (12) de la pièce de base (9) et formant par un segment de jupe un guidage pour un corps de cylindre (16) de la pompe de distribution (7) et/ou que le corps de distributeur (2) présente un prolongement en forme de jupe (35) qui dépasse librement du côté extérieur d'une paroi de fond (24) du corps de distributeur, prolongement dans lequel est situé de préférence, excentriquement, un raccord à emboîtement (34) pour un tube de montée (33) ou une partie saillante de la chambre de ressort (22).
  9. Distributeur selon une des revendications précédentes, caractérisé en ce qu'au moins une chambre de ressort (22) pour le ressort de rappel (21) est pourvue d'un dispositif de détente (40) fermé vis-à-vis du système de guidage de fluide, dispositif qui comporte de préférence au moins un canal transversal (41) partant de la chambre de ressort (22), traversant le corps de distributeur (2) dans la zone d'une paroi de fond (24) et s'étendant jusqu'au côté extérieur de ce corps (2).
  10. Distributeur selon une des revendications précédentes, caractérisé en ce qu'il comprend un dispositif de raccordement à l'atmosphère (42) pour le réservoir de fluide (3), dispositif qui est séparé pour l'essentiel complètement d'au moins une chambre de ressort (22) pour le ressort de rappel et/ou du système de guidage de fluide et comporte de préférence au moins un canal de mise à l'atmosphère (43, 45) s'étendant à partir de la bride d'appui (10) et situé entre la pièce de base (9) et le couvercle (11), canal qui est raccordé en particulier à un espace annulaire (44) situé derrière le piston de pré-aspiration (17).
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
DE4035663A DE4035663A1 (de) 1990-11-09 1990-11-09 Austragvorrichtung fuer medien
DE4035663 1990-11-09

Publications (2)

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

Families Citing this family (12)

* 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
EP1569758A1 (fr) * 2002-12-13 2005-09-07 Incro Limited Ameliorations dans des dispositifs de buse commandes par pompe
FR2933679B1 (fr) * 2008-07-10 2010-09-03 Valois Sas Dispositif de distribution de produit fluide.
EP2547455B1 (fr) * 2010-03-17 2015-10-21 Ipn Ip B.V. Contenant pourvu d'un dispositif de dosage
PL2766127T3 (pl) * 2011-09-20 2021-09-27 Dispensing Technologies B.V. Odmierzające i aktywne urządzenia rozpylające z funkcją aerozolową („flairosol ii”)
DE102016014898A1 (de) * 2016-12-12 2018-06-14 Aptar Dortmund Gmbh Pumpe und Abgabevorrichtung
CN114514182A (zh) * 2019-07-18 2022-05-17 Gb发展公司 流体分配器
FR3098734A1 (fr) * 2019-07-18 2021-01-22 Gb Developpement Distributeur de fluide
CN116788679A (zh) * 2023-07-18 2023-09-22 中山市联昌喷雾泵有限公司 一种阻止按头旋转开启的按压泵

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* 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
FR2133259A5 (fr) * 1971-04-08 1972-11-24 Step
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
US4511065A (en) * 1980-02-13 1985-04-16 Corsette Douglas Frank Manually actuated pump having pliant piston
FR2497774A1 (fr) * 1980-12-11 1982-07-16 Normos Norbert Procede et dispositif d'ejection de liquide
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
ES2011140A6 (es) * 1988-10-10 1989-12-16 Monturas Sa Bomba pulverizadora.

Also Published As

Publication number Publication date
ES2070392T3 (es) 1995-06-01
DE59105049D1 (de) 1995-05-04
ATE120385T1 (de) 1995-04-15
JPH04282084A (ja) 1992-10-07
DE4035663A1 (de) 1992-05-14
US5437398A (en) 1995-08-01
JP3157879B2 (ja) 2001-04-16
EP0484835A1 (fr) 1992-05-13

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