EP0505974B1 - Distributeur de fluides - Google Patents

Distributeur de fluides Download PDF

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Publication number
EP0505974B1
EP0505974B1 EP92105029A EP92105029A EP0505974B1 EP 0505974 B1 EP0505974 B1 EP 0505974B1 EP 92105029 A EP92105029 A EP 92105029A EP 92105029 A EP92105029 A EP 92105029A EP 0505974 B1 EP0505974 B1 EP 0505974B1
Authority
EP
European Patent Office
Prior art keywords
valve
spring
discharge apparatus
valve body
shaft portion
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
EP92105029A
Other languages
German (de)
English (en)
Other versions
EP0505974A1 (fr
Inventor
Karl-Heinz Fuchs
Lothar Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0505974A1 publication Critical patent/EP0505974A1/fr
Application granted granted Critical
Publication of EP0505974B1 publication Critical patent/EP0505974B1/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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
    • 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
    • B05B11/1067—Pump inlet valves actuated by pressure
    • 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
    • B05B11/1077—Springs characterised by a particular shape or 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
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means

Definitions

  • the invention relates to a discharge device according to the preamble of claim 1 (cf. FR-A-2645835).
  • the respective media having any physical state or any consistency, e.g. can be liquid, gaseous, powdery, pasty or similar.
  • This discharge device is expediently made in a size to be carried with one hand or for one-handed actuation, free of supply lines, at least partially from a plastically shaped material which, instead of being metallic, can preferably be non-metallic, for example an injection molded plastic.
  • a plastically shaped material which, instead of being metallic, can preferably be non-metallic, for example an injection molded plastic.
  • the plunger if it has an elastically deformable shaft section, can be guided with at least one axially adjacent, more dimensionally stable shaft section on the associated base body, this results in larger dimensions, and moreover, the firmer shaft section must be dimensioned so strongly over a relatively long length that it is not exposed to elastic deformations under the normal operating loads.
  • EP-A-0 289 854 shows a discharge device in which the nozzle core is formed in one piece with the discharge head and therefore cannot be mounted on the discharge head as a mounting unit together with pumping or displacement bodies.
  • EP-A-0 199 143 shows a discharge device in which a nozzle core cannot be recognized.
  • the invention has for its object to provide a discharge device of the type mentioned, in which disadvantages of known designs or the disadvantages described are avoided and which ensures safe guidance of at least one plunger, particularly in a compact design.
  • a plunger is slidably supported on a base body with a shaft section which expediently has a different shape in at least two different operating states of the discharge device, for example in order to control movements thereof Deriving shape changes or influencing such movements.
  • a sealing piston which is slightly deformable radially in the area of its outer and / or inner circumference
  • such as a pump piston is here an elongated tappet or shaft section, the deformation of which can be provided in any direction, but is preferably axially and / or radially directed and is given by bending, expansion and / or compression of the associated material cross section.
  • a shaft section which defines two ends which are remote from one another and which can be changed in relation to one another by the deformation, which ends are expediently both performed in the manner described in at least one operating state.
  • the shaft section or its ends are preferably formed in one piece with one another and can expediently be changed in their mutual spacing by compressing the shaft section.
  • a provision of this distance to an initial position is expediently carried out by a spring which can be formed in one piece by the shaft section lying between the ends.
  • the guided shaft section can be formed in one piece with numerous functional parts that are provided for further functions of the discharge device, in particular for influencing the media guidance, and can be valve controls, guide channels, nozzle bodies, plug connections, pump chamber delimitations or components thereof.
  • the length of the sliding guide is appropriately chosen so large that at the end of the ram stroke the other end of the shaft section has not completely left the guide, but still remains guided and supported.
  • the e.g. additional guidance of the shaft section formed by piston lips can, regardless of whether it is guided to a greater or smaller width than the shaft section, connect approximately directly in the longitudinal direction to the associated end of the shaft section and therefore secure it in a well-centered manner in any operating state.
  • At least one valve can be designed to solve that both valve surfaces to be moved against each other for narrowing and widening the valve passage consist of an elastic material that is elastic by an adjustment path to bend, stretch and / or compress the associated material cross section is resilient. This enables a particularly good sealing of the valve to be achieved in a closed position, and moreover the valve surfaces are relatively unaffected by damage or wear.
  • the function spring of the discharge device formed by the shaft section or another functional spring is expediently on the side from which it moves during its spring deflection, in any operating position essentially from a system, e.g. free on a support, which is expediently opposite it in an operating position with a gap distance, which prevents a larger spring design on this side, but makes it possible that the spring e.g. is temporarily supported on this side under compression until it is released by the sliding guide over a sufficiently long length.
  • this support on the rear is expediently provided in a substantially fixed or permanent manner with respect to the shaft section.
  • an elastic connecting member is expediently provided, which can be a plug-in member or the like and is advantageously an elastic mandrel lying in the shaft section, which can form the support for the rear of the spring and also at very short length of the firmly interlocking surfaces ensures a secure connection.
  • the discharge device according to the invention can consist of very few individual parts, for example only five individual parts or including a cover cap for the discharge opening, of six individual parts made of plastic, two to all individual parts expediently consisting of the same materials which are used jointly or as a mixture for materials for manufacture other products can be reprocessed.
  • the discharge device 1 has a base body 2 to be fixed on a media store, for example a bottle vessel, an aerosol can or the like by fastening, with a pump 3 then projecting through the neck of the vessel into the media store and a freely protruding actuating unit 4 with which the In the case of a pump, the pumping movement and in the case of a pressure accumulator, only the opening movement of an outlet valve is to be carried out manually.
  • the unit 4 protruding into the neck of the vessel has an exposed head, which can be designed as a discharge and / or actuating head 5 and for this purpose a discharge opening 8 for the Has medium and / or a handle 6.
  • a spigot 7 protrudes outward beyond the plate-shaped handle 6 lying transversely to the actuation direction and is penetrated by the discharge opening 8 in the end region.
  • the base body 2 has a multiply stepped sleeve-shaped housing 11 and at its further end a cover 12 which engages with a hollow sleeve in the inner circumference of the housing 11 and overlaps the outside thereof with an outer jacket such that a positionally rigid connection is provided.
  • the one-piece housing 11 has a riser pipe 13, optionally formed in one piece with it, via which the pump 11 or the discharge opening 8 is supplied with medium from the bottom region of the media store.
  • the base body 2 is to be fastened to the media store with a crimp ring, a plug connection, a screw connection or the like and here has a fastening cap 14 for gripping over the neck of the vessel, which is made in one piece with the lid 12 and a sealing flange 15 projecting annularly over the inside of its cap end wall is designed to seal the memory to the outside.
  • the housing 11 forms, with a longitudinal section adjoining the cover 12, a pump cylinder 16 in which an annular pump piston 17 with the handle 6 thus is displaceable that a pump chamber delimited by these components is narrowed for the discharge of the medium and expanded for suction from the reservoir.
  • the discharge from the pump chamber 18 takes place via an outlet channel 19 leading to the discharge opening 8, essentially lying in the axis 10 or in an actuating plunger 20, and is controlled via an outlet valve 21 located inside the housing 11 or the cover 12.
  • the actuating plunger 20 connects the actuating head 5 to the pump piston 17 and passes through the central opening of the cover 12, the actuating plunger 20 being attached to the actuating head 5 essentially rigidly in position.
  • the valve 21 has two valve bodies 22, 23, which are essentially annular in cross-section and can be displaced against one another with almost no radial play, both of which form part of the actuating plunger 20 or are displaceable with the latter.
  • the inner valve body 23 is rigidly connected to the actuating head 5 in that it is formed by a component or a structure 26 of a support component 24, the other structure 25 of which is firmly connected to the nozzle 7 in the region of the free end.
  • the outer valve body 22 is movably mounted approximately parallel to its axis 10 or to the actuation direction, whereby it consists of a material which is flexible in terms of bending, expansion and / or compression with regard to its functional movements by means of a valve component 27.
  • valve body 22 thus formed in one piece with the above-mentioned components is formed by an annular region which is only approximately the same length as its wall thickness and which is expediently located inside the outer jacket of the pump piston 17, between its two mutually facing annular sealing lips or approximately in the plane of the end face of the one facing away from the media inlet Ring sealing lip lies.
  • the approximately rectangular and equilateral triangular valve body 22 connects in the area of an imaginary profile corner zone directly in one piece to an at least partially annular valve spring 32 which expediently has exactly the same internal width as the valve body 22 in the connection area or approximately over its entire length, so that there is a consistently constant, gradation-free inner circumference.
  • the constant outer circumference 33 of the valve spring 32 over its length adjoins the base edge of the profile of the valve body 22, which extends continuously and approximately straight through the triangular profile to the inner circumference of the piston skirt.
  • the inner circumference of the component 24 or 25 forms a plug-in receptacle 35 for the structure 26, which, as a plug-in pin, also extends over the length of the valve spring 32 and approximately the length of the valve body 22.
  • the plug pin 26 is provided on the outer circumference with longitudinal grooves which are covered on the outside by the valve body 22 and the valve spring 32 and thereby form channel sections of the outlet channel 19 which are closed over the circumference and adjoin the valve 21 or the pump chamber 18.
  • the receptacle 35 can be at most as long as or shorter than its width. At the other end it closes Plug pin 26 in one piece on the inner valve body 23, which is cap-shaped or hollow in cross-section and whose cap end wall is formed by the end of the plug pin 26.
  • the outer circumference 38 of the valve body 22 is flared toward the media inlet.
  • This conical section forms a valve body of a vent valve for the storage vessel, the other valve body is formed by the inner end of the hollow sleeve of the lid 12 and which opens in a path-dependent manner at the start of the discharge operation, so that air from the storage vessel through an opening in the housing 11 and between the Inner circumference of the cover 12 and the valve spring 32 can reach the outside.
  • the outer circumference 38 strikes the inner edge of the cover 12, so that an axial stretching force and a radially inward force in the sense of the closing of the valve 21 act on the valve body 22 and the valve spring 32.
  • the maximum stroke of the actuating plunger 20 is less than the length of the valve spring 32 lying completely inside the cover 12 as an elastic shaft section in the starting position, so that it is still guided within the cover 12 with part of its length at the end of the stroke.
  • only a longitudinal section of the constant sleeve profile adjoining the valve body 22 forms the part of the valve spring 32 which is elastically deformable by bulging, while a subsequent section is deformable at most within the cover 12 by slight axial compression.
  • the valve body 23 forms with its inside and outside frustoconical cap shell of about constant wall thickness on the outer circumference, a shoulder-shaped or conically expanded valve seat 41 which, with the annular valve closing surface 42 of the valve body 22, delimits a completely lockable, annular valve opening and determines a stop position for the closed position of the valve 21.
  • the closing surface 42 is delimited by the flanks of the triangular profile of the valve body 22 which are approximately at right angles to one another and expediently approximately sharp-edged, the flank which is approximately at right angles to the axis 10 merging into the inner circumference of the conical section which connects the valve body 22 directly to the piston skirt and the outer circumference 38 has.
  • the narrower end of the valve seat 41 directly adjoins the equally and constantly wide outer circumference of the piercing mandrel 26.
  • the valve spring 32 is in the starting position over its entire length and in the pump stroke position about half of it surrounded by a support 43 of the base body 2, which is formed by the inner circumference of the cover 12, on which the actuating plunger 20 is slidably guided and with longitudinal grooves for the ventilation can be provided.
  • the associated outer circumference 33 extends from the valve body 22 over such a large length with a constant width that it is guided over the entire length of the support 43, which extends from the inner end of the hollow sleeve to the outer end face of the cover 12, even when the stroke end position is reached.
  • the support 43 is opposite to a further support 44 with a smaller gap distance than the material thickness of the valve spring 32, which is formed by the outer circumference of the section of the plug mandrel 26 adjoining the receptacle 35, so that this section essentially is contact-free in all operating states with respect to the inner circumference of the valve spring 32 and / or the valve body 22.
  • valve body 22 can only be lifted axially from the valve seat 41 after a certain displacement of the unit 4 for valve opening, namely when the valve spring 32 has been released from the support 43 over a sufficiently long length, the adjustment being expediently provided such that this is only against or at the end of the pump stroke.
  • the valve spring 32 can then deflect outward only in a radial direction, namely because of the support 44 that moves with it, with its jacket being elastically bulged until the pump stroke is ended by a stop.
  • the valve 21 is suitable for both a path-dependent and a pressure-dependent control, it being able to work both as a slide valve and in the manner of a hose valve.
  • the valve body 22 is expediently displaced via a stop 57, against which the associated component strikes during the actuating movement of the actuating head 5 and which can be formed by an inner shoulder at the end of the cylinder 16, against which the pump piston 17 runs.
  • the valve spring 32 In the closed or starting position, the valve spring 32 can be completely free of tension.
  • the structure 25 of the component 24 is formed in one piece with a shaft portion 47 adjoining the valve spring 32, which lies over most of its length essentially without contact and deformation within an outer jacket of the nozzle 7 and with its outer end a nozzle core 48 or one Twist device forms at the inner end of the nozzle bore forming the discharge opening 8.
  • This nozzle core 48 projects axially with a reduced width over an end section of the shaft section 47, which is firmly inserted into a plug-in sleeve 49 which lies within the outer casing of the connector 7 and is fixedly connected to it in one piece.
  • the receptacle 49 forms at its outer end or in the transition region to the outer jacket a nozzle cap 58 which is formed in one piece with the connector 7 and on the inside of the associated cap end wall penetrated by the outlet opening 8 is the nozzle core 48, which is expediently profiled 59 on the associated end face for swirl generation is provided in such a way that the inside of the cap end wall can be completely flat and free of profiles or shoulders.
  • the outlet channel 19 is only surrounded by the component 25 over the entire circumference between the plug mandrel 26 and the nozzle core 48 and then has a flat oval cross section to the region of the nozzle core 48.
  • the inner or outlet channel 19 emerges radially from the shaft section 47 against the inner circumference of the nozzle cap and is deflected axially along the outer sides of the nozzle core 48 and then again radially inward along the profiles 59 led to the outlet opening 8.
  • the socket 49 can be made very short or the shaft portion 47 approximately over its entire length or between the mutually facing end faces of the socket 49 and the cover 12 or the base body 2 and the housing 11 without contact within the Stubs 7, the handle 6 and the cap 9 are. That inside the socket 49 lying plug end 76 of the actuating plunger 20 is expediently reduced in the outer width compared to the adjoining or the remaining longitudinal region of the shaft section 47.
  • the actuating plunger 20, including the valve 21 and other components, can form a preassembled module 50 which can be inserted into the cover 12 from the inside and then connected to the actuating head 5.
  • This assembly contains or consists of two preassembled subassemblies 51, 52, one of which is in one piece and contains the support structure 25 and the valve component 27.
  • the other assembly 52 can also be formed in one piece and contains, in addition to the core body 26 and the valve body 23, a return spring 53 for the unit 4 and / or a valve body 54 of an inlet valve 55 of the media inlet, the valve seat 56 of which is formed by an inner annular shoulder of the housing 11 is formed.
  • the return spring 53 which is expediently designed as a bellows and / or gas spring, lies approximately in the axis 10 within the housing 11 such that it engages in the pump piston 17, the pump chamber 18 and / or a narrower housing section adjoining the cylinder 16 , where its abutment relative to the base body 2 can be formed by the valve seat 56.
  • an elastically deformable shaft section formed here by the valve spring 32, is guided directly on the base body 2, namely on the housing 11 or on the cover 12, with its outer circumference on the support 43.
  • the end of this shaft section 32 associated with the outer end of the support 43 lies between the ends of the support 43 in every operating position, the length of which is greater, in particular approximately twice greater than the outer width of the shaft section 32.
  • the support 44 lies at least over the largest part of the length of the shaft section 33 essentially in any operating position, at least at a gap distance from the shaft section 32, which, however, could be deformed radially inward by this gap distance under compression load at the beginning of the pump stroke, but then immediately would be determined by the support 44.
  • the shaft section lying within the support or sliding guide 43 has successive sections in the longitudinal direction of different internal widths, of which a narrower section 35, which is shorter than its width, establishes the fixed connection with the elastically compressible plug pin 26.
  • the sliding guide 43 extends with its inner end in the starting position into the area of the outlet valve 21 and the vent valve 74 surrounding it, whereby it acts on the conical outer circumference 38 under the force of the return spring 53, so that the valve body in the sense of it Closing movement are loaded and precisely centered and the shaft portion 32 is subjected to a stretching force.
  • the connection of the outer circumference 38 to the pump piston 17 can be such that the connecting section between the piston lip or pistons and the plunger is deformed slightly radially inwards by the force mentioned, so that the piston lips correspondingly with regard to their contact pressure on the cylinder raceway in the starting position be relieved without the dense system being lifted.
  • This longitudinal section 75 which in the starting position extends approximately over half the length between the sliding guide 43 and the plug-in sleeve 49, merges into a weaker longitudinal section which is narrowed only in the outer width and which ends with the hollow plug-in pin 76 for receiving in the plug-in sleeve 49 forms.
  • the return spring 53 delimits a tightly closed working chamber 60 within a chamber shell 61 and two end walls 62, 63, which is filled with air in the starting position under excess pressure and forms a compression chamber.
  • a cap-shaped end wall 62 forms the valve body 23, and the end wall 63 located at the media inlet is approximately flat.
  • the chamber jacket 61 is designed as a bellows which is substantially uniform over its length, the longitudinal sections of which, alternately oppositely frustoconical, move approximately against one another until their inner and / or outer surfaces are completely in contact with one another can be.
  • One of these longitudinal sections adjoins the end of the cap jacket of the end wall 62 in one piece, and the other longitudinal section accordingly connects to an approximately cylindrical jacket edge of the end wall 63.
  • the end of the spring 53 located on the actuating plunger 20 is thereby fixed by means of the plug-in mandrel 26 or is supported on the return stroke also by means of the valve seat 41 with respect to the unit 4.
  • the other end is supported with the outer circumference of the outside of the end wall 63 on shoulder surfaces 64 which protrude beyond the inside of the housing 11 in a ring around the axis 10 and are expediently formed by projecting end sections of longitudinal ribs 65 on the casing of the housing 11, which Guide or center the chamber jacket 61 on the outer circumference.
  • the shoulder surface 64 extends only approximately over the radial extension between the narrowest inner circumference and the widest outer circumference of the chamber shell 61, so that a central field of the end wall 63 with a larger radial extension remains unsupported.
  • the working chamber 60 or the chamber jacket 61 lies with the major part of the longitudinal extent within a housing space 66 narrowed with respect to the pump chamber 18, which adjoins the stop 57 and passes essentially to the valve 55 and is provided with the longitudinal ribs 65 over its length is.
  • the remaining part of this length lies within the pump chamber 18 or the pump piston 17, the inner circumference of which in the pump stroke end position practically forms a continuation of the inner circumference of the housing space 66.
  • the spring 53 provides a tightly closed within its outer limits with respect to the spaces mentioned hollow filler 70, which limits the housing space 66 over its entire length to a shell-shaped gap 67 between the outer circumference of the chamber shell 61 and the inner circumference of the shell of the housing 11.
  • a corresponding, but slightly further gap space is also formed in the pump chamber 18 and in the pump piston 17.
  • this forms a plurality of ring-shaped, axially successive depressions 68 on the outer circumference, the bottom of which is delimited in axial section by two flanks lying at an angle to one another and in cross section radially outward or to the longitudinal channels delimited between the longitudinal ribs 65 69 are expanded, which remain free for the flow in each operating state of the packing 70.
  • the spring 53 is compressed during the pump stroke, the depressions 68 are narrowed and the medium located in them is displaced to the valve 21 through the gap spaces or the longitudinal channels 69.
  • the housing space 66 can be almost completely emptied during the pump stroke.
  • the working chamber 60 or the filler 70 or the entire associated assembly 52 suitably consists of a material which is resiliently elastic with respect to bending, expansion and / or compression, whereby the assembly 51 can also consist of a similar or identical elastic material .
  • the assembly 51 can also consist of a similar or identical elastic material .
  • the other end of the return spring 53 is formed in one piece with the plate-shaped valve body 54, which connects to the associated end wall of the hollow body via a shaft 71, lies at a distance from this end wall and, instead of being self-resilient, can be dimensionally stable at least under the pressure loads that occur.
  • the return spring 53 also forms at the same time a valve spring formed in one piece with the valve body 54, against which the valve body 54 performs an axial opening movement, under which it axially lifts off the valve seat 56 at a corresponding pressure difference, so that the medium from the riser pipe 13 passes the valve body 54 can pass into the other housing space and fill the space limited between the outer circumference of the return spring 53 and the casing of the housing 11 without penetrating into the inside of the outer circumference of the return spring 53.
  • the gas or air pressure in the cavity of the return spring 53 its spring characteristic can be precisely adjusted.
  • the flat disk-shaped valve body 54 is not by the same return spring 53 for the unit 4, which is essentially defined by the foldable chamber jacket 61, but rather loaded by a separate, disc or plate-shaped valve spring 72, which is essentially formed only by the end wall 63 and is therefore formed in one piece with the return spring 50.
  • the valve spring 72 In the starting position, the valve spring 72 is curved outwards in the shape of a truncated cone to the center, in which it merges on the outside into the central shaft 71, over the outer circumference of which both the valve spring 72 and the valve body 54 protrude far.
  • valve spring 72 can thereby be pressed inward against its elastic tension and also against the gas pressure in the working chamber 60, taking the valve body 54 against the shoulder surfaces 64, practically rolling off the shoulder surfaces 64 and the valve body 54 with its flat valve closing surface from the valve seat 56 takes off.
  • valve seat 56 is expediently formed by a relatively sharp edge surface which is delimited in cross section by two flanks lying approximately at right angles to one another and is annular. It surrounds at an radial distance an inlet channel which is formed by the end of the inner circumference of the riser pipe 13. Due to the design described, the valve body 54 also consists of the elastic material mentioned, while the valve seat 56 consists of a much harder material. The inner longitudinal edges of the projections for the shoulder surfaces 64 simultaneously form longitudinal guides for the outer circumference of the valve body 54, so that the latter can lift off the valve seat 56 essentially without tilting movements parallel to the axis 10 and thus uniformly over its entire circumference.
  • the riser pipe 13 connects to the section belonging to the housing space 66 via a frusto-conical housing section having the projections on the inside and is formed in one piece with the housing over its entire length required for the discharge operation or to the bottom of the storage vessel.
  • the connector 7 can be closed with an attached, one-piece protective cap 73, which expediently extends to the actuating pressure surface of the handle 6 and is narrower than this.
  • All described configurations, components, units or spaces can only be provided once or in a plurality of two or more, e.g. in order to be able to effect successive and / or simultaneous multiple fluid discharge from possibly multiple separate fluid or pressure sources from one and / or several outlet openings.

Landscapes

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

Claims (10)

  1. Distributeur de produits, comprenant au moins un corps de base (2), au moins un élément constitutif (24) qui est destiné à être déplacé au moyen d'un organe de préhension (6) en vue d'actionner le distributeur, et un guidage du produit qui amène à une sortie du produit (8) d'une tête de distribution et d'actionnement (5) présentant l'organe de préhension (6) et qui forme des chambres à produit destinées à recevoir le produit dans au moins un état de fonctionnement déterminé par des déplacements fonctionnels, cependant qu'il est prévu au moins un organe (17, 70) de délimitation de la chambre de pompe qui peut coulisser dans au moins une chambre de pompe (18), au moins une soupape (21) et au moins un noyau de buse (48) dans la région de la sortie (8) du produit, et qu'au moins un organe (17, 70) de délimitation de la chambre de pompe pourvu d'au moins un noyau de buse (48) est monté sous la forme d'une unité (50) sur la tête d'actionnement (5) qui présente un capuchon (9), caractérisé par le fait qu'au moins une soupape (21) forme un composant de l'unité (50) qui est montée sur la tête d'actionnement (5), et par le fait que le capuchon (9) de la tête d'actionnement (5) coiffe le corps de base (2).
  2. Distributeur selon la revendication 1, caractérisé par le fait qu'au moins un poussoir mobile (20) de l'unité (50) comporte un corps de remplissage (70) qui est adjacent à la chambre de pompe (18), ainsi qu'en supplément un piston de pompe (17) qui peut être déplacé par rapport à celui-ci en fonction du trajet ou de la pression, respectivement, et qu'il est guidé en particulier pour son déplacement sur au moins un corps de base (2) par un pourtour extérieur (33) d'au moins une partie de tige (32) qui est déformable élastiquement dans au moins un état de fonctionnement, par le fait que, de préférence, au moins une partie de tige (32) est située entre des parties (5, 17) qui sont élargies par rapport à elle en section transversale, par le fait qu'en particulier, au moins une partie de tige (32) est guidée dans une ouverture de passage à peu près constante sur une longueur qui est à peu près le double de son étendue en section transversale, et par le fait que, de préférence, au moins une partie de tige (32) présente des parties creuses dont l'étendue intérieure est différente dans la région d'au moins un guidage (43).
  3. Distributeur selon la revendication 1 ou 2, caractérisé par le fait qu'au moins une partie de tige (32) est réalisée d'un seul tenant avec l'un au moins des éléments fonctionnels qui sont constitués par au moins un corps de soupape (22, 38) d'au moins une soupape (21, 74), au moins un ressort de soupape (32), un noyau de buse (48) destiné à une buse à produit, des profils frontaux (59) d'un dispositif de mise en rotation, une délimitation qui est fermée sur le pourtour et qui est destinée à un canal longitudinal (19), un organe de retenue à enfoncement pourvu d'une ouverture d'enfoncement (35), un embout à enfoncement (76), un piston de pompe (17) et une butée d'extrémité destinée à un déplacement fonctionnel.
  4. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'au moins une partie de tige (32) peut être déformée par raccourcissement, qu'elle constitue de préférence un ressort, du moins partiellement, et qu'elle est guidée en particulier dans un passage (43) d'un couvercle de boîtier (12), et/ou par le fait que, dans la position de départ, au moins une partie de tige (32) est centrée par un guidage en glissement (43) au voisinage immédiat d'au moins une soupape (21, 74) et directement en face du corps de base (2) en forme de boîtier, cependant que le passage forme de préférence, pour l'essentiel sur toute la longueur du ressort (32), un appui (43) qui est destiné au pourtour extérieur (33) de celui-ci.
  5. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'au moins un poussoir (20) est constitué par une matière élastiquement déformable, et qu'entre ses deux extrémités, il est disposé pour l'essentiel sans que son pourtour extérieur ne présente un contact, et ce, sur une longueur qui correspond au moins à sa largeur, et en particulier sur plus de la moitié de sa longueur, cependant que, de préférence, au moins une partie de tige (47) sans contact et résistante aux déformations présente, du moins à peu près sur la moitié de sa longueur, des sections transversales plus épaisses qui sont renforcées par rapport à des sections transversales d'une zone longitudinale adjacente de cette partie (47).
  6. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'il est prévu au moins un corps de soupape annulaire (22, 38) et au moins un autre corps de soupape (23), en particulier également annulaire, d'au moins une soupape (21, 74) qui sont situés l'un dans l'autre, cependant que, de préférence, la section transversale d'un corps de soupape (23) situé le plus à l'intérieur est annulaire et/ou peut être déformée élastiquement.
  7. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'au moins une soupape (21) présente deux corps de soupape (22, 23) qui peuvent être déplacés l'un par rapport à l'autre en vue de l'ouverture de la soupape et qui sont constitués chacun par une matière permettant un retour élastique en cas de flexion, d'allongement et/ou de compression, du moins dans la région du siège de soupape (41), cependant que, de préférence, un corps de soupape (23) qui constitue le siège de soupape (41) et un corps de soupape (22) qui constitue une surface de fermeture (42) de la soupape sont réalisés chacun d'un seul tenant.
  8. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'un ressort (32) détermine par rapport à une position de départ une déviation élastique qui est transversale par rapport à des surfaces éloignées les unes des autres, et par le fait que la surface qui est à l'arrière dans la direction de la déviation élastique est pour l'essentiel libre d'appuis dans la position de départ, cependant que, de préférence, un pourtour intérieur du ressort (32) fait face à un appui (44) à une distance qui est réduite à une fente.
  9. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'au moins un mandrin élastique (26) pénètre dans au moins une partie de tige (32), et par le fait qu'en particulier, au moins un mandrin (26) constitue l'appui (44), qu'il délimite une partie du guidage du produit et/ou qu'il est réalisé d'un seul tenant avec l'un au moins des éléments constitutifs qui sont formés par au moins un corps de soupape (23, 54), un ressort de rappel (53), un ressort de soupape (72), une chambre de travail (60) dont le volume peut varier, un corps de remplissage (70) dont le volume peut varier et un soufflet.
  10. Distributeur selon l'une des revendications précédentes, caractérisé par le fait qu'au moins un poussoir est réalisé sous la forme d'un poussoir d'actionnement (20) destiné à une pompe (3) à piston de refoulement ou, respectivement, qu'il porte une tête d'actionnement (5) par une extrémité éloignée d'une chambre de pompe (18), et par le fait que, de préférence, au moins un poussoir (20) est entouré par une tubulure (7) qui comporte l'ouverture de sortie (8), par un organe de préhension et d'actionnement (6), par un capuchon (9) de la tête d'actionnement (5), par un couvercle (12) d'une enveloppe de pompe (11) et/ou par cette enveloppe (11).
EP92105029A 1991-03-28 1992-03-24 Distributeur de fluides Expired - Lifetime EP0505974B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4110303 1991-03-28
DE4110303A DE4110303A1 (de) 1991-03-28 1991-03-28 Austragvorrichtung fuer medien

Publications (2)

Publication Number Publication Date
EP0505974A1 EP0505974A1 (fr) 1992-09-30
EP0505974B1 true EP0505974B1 (fr) 1996-12-18

Family

ID=6428466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105029A Expired - Lifetime EP0505974B1 (fr) 1991-03-28 1992-03-24 Distributeur de fluides

Country Status (6)

Country Link
US (1) US5316198A (fr)
EP (1) EP0505974B1 (fr)
JP (1) JPH05319447A (fr)
AT (1) ATE146385T1 (fr)
DE (2) DE4110303A1 (fr)
ES (1) ES2095344T3 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1260302B (it) * 1993-03-12 1996-04-03 Taplast Srl Pompa dosatrice in plastica per l'erogazione di liquidi da contenitori
DE4441263A1 (de) * 1994-11-19 1996-05-23 Caideil M P Teoranta Tormakead Austragvorrichtung für Medien
US5673824A (en) * 1995-05-31 1997-10-07 Taplast Srl Plastic dosing pump for dispensing liquids from containers
SI9600118A (en) * 1995-04-13 1996-10-31 Monturas Sa Precompression pump sprayer
DE19523816A1 (de) * 1995-06-29 1997-01-02 Dagma Gmbh & Co Dosiervorrichtung mit Feder-Rückstellung
JP3804691B2 (ja) * 1995-09-07 2006-08-02 花王株式会社 ポンプ機構
DE19606703A1 (de) * 1996-02-22 1997-08-28 Caideil M P Teoranta Tourmakea Austragvorrichtung für Medien
US5697917A (en) 1996-02-29 1997-12-16 Medi-Ject Corporation Nozzle assembly with adjustable plunger travel gap
US5921967A (en) 1996-02-29 1999-07-13 Medi-Ject Corporation Plunger for nozzle assembly
US5800388A (en) 1996-02-29 1998-09-01 Medi-Ject Corporation Plunger/ram assembly adapted for a fluid injector
US5722953A (en) 1996-02-29 1998-03-03 Medi-Ject Corporation Nozzle assembly for injection device
US5865795A (en) 1996-02-29 1999-02-02 Medi-Ject Corporation Safety mechanism for injection devices
US5643211A (en) 1996-02-29 1997-07-01 Medi-Ject Corporation Nozzle assembly having a frangible plunger
DE19622124A1 (de) * 1996-06-01 1997-12-04 Alfred Von Schuckmann Gerät zum Aufbringen von Flüssigkeiten
US5875976A (en) 1996-12-24 1999-03-02 Medi-Ject Corporation Locking mechanism for nozzle assembly
FR2794727B1 (fr) * 1999-06-10 2001-08-24 Valois Sa Dispositif de distribution de produit fluide ameliore
AU2001263292A1 (en) * 2000-05-23 2001-12-03 Carter Wallace Inc. Dispensing container
US7367478B2 (en) * 2003-06-25 2008-05-06 Ing. Erich Pfeiffer Gmbh Dosing device for at least one medium
FR3046944B1 (fr) * 2016-01-22 2022-04-01 Capsum Dispositif de conditionnement et de distribution sans reprise d'air d'un produit, notamment a plusieurs phases, bague de purge et procede associes
GB2587372B (en) 2019-09-25 2022-09-07 Berlin Packaging Uk Ltd Improved fluid dispensers
CN112246173B (zh) * 2020-09-29 2022-11-04 广州市爱百伊生物技术有限公司 一种配料罐及生产线

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011992A (en) * 1975-07-23 1977-03-15 Par-Way Mfg. Co. System for heat conditioning of non-stick liquid preparation for spraying on grill
FR2645835A1 (fr) * 1989-04-14 1990-10-19 Step Soc Tech Pulverisation Dispositif de securite pour vaporisateur

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2149669A5 (fr) * 1971-08-19 1973-03-30 Step
US4144987A (en) * 1973-11-07 1979-03-20 Yoshino Kogyosho Co., Ltd. Liquid sprayer
JPS55373Y2 (fr) * 1974-09-26 1980-01-08
US4179049A (en) * 1977-04-29 1979-12-18 Avon Products, Inc. Pump dispenser
US4225061A (en) * 1977-12-19 1980-09-30 The Afa Corporation Fluid dispensing device
US4305530A (en) * 1978-01-23 1981-12-15 Yoshino Kogyosho Co., Ltd. Liquid atomizer
DE2825428A1 (de) * 1978-06-09 1979-12-13 Seltmann Hans Juergen Ausgabepumpe, insbesondere zum zerstaeuben von fluessigkeiten
US4415121A (en) * 1981-06-12 1983-11-15 The Reseal Corporation Of America Valve for spraying a mist
DE3248370A1 (de) * 1982-12-28 1984-07-05 Zyma GmbH, 8000 München Verfahren und vorrichtung zum vorfuellen einer pumpe
DE3315334A1 (de) * 1983-04-28 1984-10-31 Pfeiffer Erich Gmbh & Co Kg Zerstaeuber- oder dosierpumpe
DE3339180C2 (de) * 1983-10-28 1993-10-14 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
DE3514719A1 (de) * 1985-04-24 1986-10-30 Ing. Erich Pfeiffer GmbH & Co KG, 7760 Radolfzell Schubkolbenpumpe zur ausgabe von medien
US4775079A (en) * 1985-11-05 1988-10-04 Hans Grothoff Upright/inverted pump sprayer
DE3544985A1 (de) * 1985-12-19 1987-06-25 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer fliessfaehige medien
DE3715300A1 (de) * 1987-05-08 1988-11-24 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
DE3834091A1 (de) * 1988-10-07 1990-04-12 Raimund Andris Spraypumpe
DE3836236A1 (de) * 1988-10-25 1990-04-26 Siegfried Kroschel Vorrichtung zum handbetaetigten verspruehen einer fluessigkeit
JPH0271178U (fr) * 1988-11-18 1990-05-30
DE8905137U1 (fr) * 1989-04-24 1990-08-23 Megaplast Dosiersysteme Gmbh & Co, 5600 Wuppertal, De
DE4005529A1 (de) * 1990-02-22 1991-08-29 Pfeiffer Erich Gmbh & Co Kg Austragkopf fuer medien
DE59107710D1 (de) * 1990-08-31 1996-05-30 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011992A (en) * 1975-07-23 1977-03-15 Par-Way Mfg. Co. System for heat conditioning of non-stick liquid preparation for spraying on grill
FR2645835A1 (fr) * 1989-04-14 1990-10-19 Step Soc Tech Pulverisation Dispositif de securite pour vaporisateur

Also Published As

Publication number Publication date
DE4110303A1 (de) 1992-10-01
ATE146385T1 (de) 1997-01-15
ES2095344T3 (es) 1997-02-16
DE59207693D1 (de) 1997-01-30
US5316198A (en) 1994-05-31
EP0505974A1 (fr) 1992-09-30
JPH05319447A (ja) 1993-12-03

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