EP0792192B1 - Distributeur de produits fluides - Google Patents

Distributeur de produits fluides Download PDF

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Publication number
EP0792192B1
EP0792192B1 EP95939254A EP95939254A EP0792192B1 EP 0792192 B1 EP0792192 B1 EP 0792192B1 EP 95939254 A EP95939254 A EP 95939254A EP 95939254 A EP95939254 A EP 95939254A EP 0792192 B1 EP0792192 B1 EP 0792192B1
Authority
EP
European Patent Office
Prior art keywords
spring
section
dispenser
sections
valve
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
EP95939254A
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German (de)
English (en)
Other versions
EP0792192A1 (fr
Inventor
Karl-Heinz Fuchs
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.)
Caideil MP Teoranta
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Caideil MP Teoranta
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Publication date
Application filed by Caideil MP Teoranta filed Critical Caideil MP Teoranta
Publication of EP0792192A1 publication Critical patent/EP0792192A1/fr
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Anticipated expiration legal-status Critical
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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
    • 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
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—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

Definitions

  • the invention relates to a dispenser according to the preamble of claim 1 .
  • flowable media which, for example, can be gaseous, liquid, pasty and / or powdery before or during the discharge process. Only a single media component or separate components can be discharged at the same time or in such a way that their start and / or their discharge is delayed against each other.
  • the dispenser advantageously has at least one working member, such as a resilient element, a one-piece working spring or the like, which is tensioned and relaxed during work, for example the discharge work, the device and / or can perform other functions.
  • Such functions can be control movements, return movements, closing movements, stop functions, sliding guides or the like.
  • the dispenser or the respective working member is expediently made exclusively of plastic or non-metallic materials, which can be copolymers, such as polyethylene, polypropylene or other thermoplastics, so that the respective component can be produced as a molded part.
  • the dispenser which can be gripped with one hand, carried freely and actuated at the same time, should discharge or atomize the medium over most of its actuation path, in particular immediately after at least partially closing an inlet.
  • the lowest tension of the spring in the initial and idle state of the dispenser is advantageously above 2 to 5 N and below 10 or 8 N, the tension at the start of the discharge or when the inlet is closed is above 10 or 15 N and below 30 or 25 N and the highest voltage at the end of the discharge process above 40 or 50 N and below 100 or 80 N.
  • the dispenser can be made very small, namely a maximum width of 30, 20 or about 10 mm in terms of its surfaces coming into contact with the media have, while their length is at most 50 or 40 mm.
  • This length relates, for example, to the distance between the inner bottom of a pressure chamber and the outer end of an actuating handle in the case of a discharge device which is to be inserted into a small vial with the inner end through the neck of the vessel.
  • the dispenser is suitable for very small discharge volumes per complete, stroke-limited discharge process, namely volumes under one, half or three tenths of a centimeter or milliliter.
  • the manual actuation force for a discharge process can then be below 200 or 100 N.
  • WO-A-91/03321 a metering pump has become known, which only contains a bellows designed as a spring. This bellows only develops axially Spring forces.
  • the invention has for its object to provide a dispenser for media in which disadvantages of known training avoided and / or advantages and effects of the type described can be achieved.
  • high spring forces are to be achieved even with weak dimensions.
  • simple manufacture and / or fully automatic assembly and / or a very small number of components or a high degree of functional reliability should also be ensured at a wide variety of temperatures.
  • the spring can have working sections which are expedient in Are lined up in the longitudinal direction and different stiffness per unit length or have spring hardness.
  • the respective working section can be resiliently deformable Spring section, a non-resilient intermediate section, a non-resilient end section and / or a resilient end section.
  • the respective non-feathered section is expediently not by spring coils placed closely or touching one another, but through appropriate cross-sectional changes or other stiffening training causes the working spring, so that the respective spring section over its entire Length and up to one or both ends per unit length or spring turn in can have essentially the same spring action.
  • the respective spring turn forms advantageous full cross-sections, which are strong in mutually transverse directions have different extents, e.g. approximately one in the longitudinal direction of the spring greater cross-sectional extent than at right angles to it or transversely or radially to Spring axis.
  • the respective work section can be a completely closed or multiple or be uniformly perforated hollow jacket, so that adjacent spring sections or spring turns not only over the course of the slope, but bellows-like are also directly connected to each other in the longitudinal direction of the spring.
  • the connecting sections are mutually movable in the longitudinal direction of the spring and can similarly adjoining truncated cones in longitudinal section under a Connect angles of at most 90 ° or at acute angles or merge into one piece.
  • the respective working section can be on the inside and / or External circumference in the manner of a one, two or more thread as a helix or Steep spiral be profiled. Are the inner and outer spiral sections approximately congruent, the wall thickness of the working section is over in this area the extent or the axial extent approximately constant.
  • the respective external or Inner helix can have approximately at least two to all working sections same diameter or same pitch interrupted or uninterrupted go through, so that a very simple production is possible
  • the helix angle of the helix can be between 10 ° and 60 °, in particular 20 ° and 45 ° are the minimum and maximum values in addition to these values 5 °, 30 °, 40 ° and 50 ° can be advantageous.
  • the rack spring can Torsional load can be increased. This keeps the spring tension even at high mechanical and thermal loads, e.g. up to at least 70 ° C.
  • the stiffened working section can then e.g. only be formed in that he only radially outside the inner circumference cross sections other than one or two has adjacent spring sections, for example in the longitudinal and / or radial direction has larger full cross sections.
  • the stiffened section can be axial and / or radial springy, e.g. be resilient or essentially dimensionally stable by cross-sectional crushing.
  • the inner and / or outer circumference of the respective working section is for sliding guidance suitable on appropriate counter surfaces where it is only linear or can be in the form of a knife or over a larger axial extent. It is furthermore appropriate scope for media management, whereby it with the counter surface over can form the circumference of its cross section approximately closed spiral channel.
  • the flow directions on the inner and outer circumference are advantageous opposite direction, the flow reversal of the continuous flow in Area of an end or a wall opening of the working member can.
  • the respective spiral channel or the spiral groove could be via the spring travel essentially completely close by the end of the spring travel, but are the dimensions are appropriately provided so that the spiral channel or the cavity of the work component always remains open.
  • Each of the working sections can also be a form-locking member, a stop member Centering member, an anti-rotation device or the like.
  • Such or stiffened work sections can be significantly shorter in the longitudinal direction of the spring than at least one or all Spring sections or the or the immediately adjacent spring sections.
  • the each spring section in turn can be compared to its outer and / or inner width have a longer or a shorter length, depending on which travel or Spring effects are required. Is the working spring with a fastening section by a snap connection or the like.
  • both subsequent spring sections work completely independently of each other.
  • a stop section results after reaching the stop position Shortening the effective spring length or an abrupt increase in the spring characteristic, so that e.g. until an inlet valve closes, a lower actuation force and afterwards an increased actuation force is required.
  • both spring sections of both sides of the stop section of Be effective from the start.
  • the training according to the invention is particularly for piston or Thrust piston pumps suitable, which e.g. a pressure-dependent exhaust valve have, which lies within the piston and a separate from the piston Has valve closing body, which axial working movements relative to the piston performs.
  • the valve body is advantageously in one piece with the subsequent one Spring section or with the associated valve spring or two to all working sections the associated working spring.
  • the pump is self-priming Pump formed, it has an inlet valve which the pressure or Displacement chamber at the inlet keeps closed in a pressure-tight manner during the pump stroke.
  • the valve can be designed as a stop-limited valve and / or as a slide valve his. Its axially movable valve body can be made in one piece with each of the others mentioned Working sections of the working member be formed.
  • the dispenser may also be designed so that its pump chamber is refilled by Disnachsaugung or gearhuboniaen but contains vomeherein of the entire medium reservoir of the dispenser.
  • Each of the working sections or its inner and / or outer circumference can be partially or completely outside the media-carrying areas, for example on the outside of the pump chamber, so that it never comes into contact with the medium.
  • the dispenser or its components such as the working spring or its individual working sections, can be manufactured and assembled very easily, in particular if the components are essentially rotationally symmetrical and are designed such that certain components for self-centering direct mutual engagement in mutually longitudinal assembly movements act against each other and get into functional mutual engagement solely by longitudinal forces.
  • the working spring and the piston can be lowered one after the other in both possible orders under the force of weight in the longitudinal direction into a pump housing, after which the positional lock between the piston and the working spring automatically engages by applying an axial force.
  • the piston can then form the only separate end closure of the housing, or a separate housing cover can be attached for this purpose, via which the axial assembly force mentioned can also be applied.
  • Such a cover which also snaps into the housing in a self-centering manner, can be provided at the inner and / or outer end of the pump housing.
  • the inner end is the end which is remote from the outer end, this outer end being closer to the manual discharge operation or the media outlet. If the inner end is connected to the respectively associated outer end, this connection direction usually corresponds approximately to the discharge flow direction in a main section of the outlet channel or the pump chamber, this flow direction being opposite to the pump movement of the displacement piston
  • the dispenser 1 has a base body 2 which is to be arranged in a fixed position with respect to a media storage indicated by dash-dotted lines and which is provided for filling or flow through with the medium Cup-shaped housing part 3 closes in an annular manner and is penetrated by a discharge actuation 5.
  • the discharge actuation 5 carries a head 6, the outermost end face of which forms a pressure handle 7 and which has a radially directed media outlet 8 in the form of an atomizer nozzle which opens into the open.
  • the head 6 is fastened to the outer end of a piston unit 9 by axial plugging and can be moved with this piston unit 9 synchronously relative to the base body 2 against its inner end or against its outer end.
  • an elongated working unit or working spring 10 is sunk inside the component 3 or 4, which in the initial state extends approximately over the entire inner length of the part 3.
  • Arbitrary pairs of the arrangements 2 to 10 can be axially parallel or axially identical to one another and thereby determine a central central axis 11 of the dispenser of the first.
  • the piston unit 9 forms a cup-shaped piston 12, which at the outer end via an annular bottom wall into a plunger 13 transforms. This plunger 13 is guided through the cover 4 to the outside and carries the head 6.
  • Each of the components 3, 4, 9, 10 can be formed in one piece, so that the dispenser 1 without head 6 and possibly without a suction or filling tube , can be assembled from only four components in such a functional manner that medium can be pumped out of the pump chamber 14 of the basic housing 2 through the plunger 13.
  • the piston 12 runs with two axially spaced and oppositely projecting, annular sealing lips sealed on the inner circumference of the shell of the housing 3, from a stop-limited starting position in a pump stroke end position in which the piston 12 itself does not strike.
  • the piston 12 delimits the pump chamber 14 on its outer end face and forms with it Cavity itself a longitudinal section of the volume-variable pump chamber 14.
  • Der Component 9 or 12 or 13 can be compared to component 2 or 3 or 4 in each Stroke position be positively or frictionally secured against rotation.
  • an outlet valve 15 is provided inside the piston unit 9 in the region of the bottom wall of the piston 12 which integrally connects to the tappet 13 and which automatically opens against restoring forces above a limit pressure in the pump chamber 14 that a valve body 16 lifts off a valve seat.
  • the valve seat is formed by an annular inner shoulder, formed in one piece with the components 9, 12, 13 and forms an end stop for the closed position of the valve body 16, the closing movement of which is directed towards the outer end of the dispenser 1 or parallel to the direction of flow of the medium in the valve 15 ,
  • an inlet valve 17 with two interacting valve parts namely an axially movable valve body 18 and a valve seat 19 fixed to the housing, is provided within the housing 3.
  • the inner end of the dispenser 1 or the base body 2 is designated by 20 and the outer end by 21, which is formed by the outer end face of the head 6 when the dispenser is completely assembled.
  • Each of the components mentioned or each longitudinal section of such a component has corresponding internal components and outer ends, whereby the inner end 20 can lie inside the media store, while the outer ends of the components 3, 4, 9, 10 lie outside the media store.
  • the inlet valve 17 separates an inlet chamber 22 in a pressure-tight manner from the pump chamber 14, which is connected to the chamber 22 when the valve 17 is open by directly connecting the two adjoining chamber ends.
  • the inlet chamber 22 is essentially delimited exclusively by the housing 3, and an inlet channel 23 opens into it through an inlet opening 24, no further valve being provided between the media inlet of the inlet channel 23 and the inlet opening 24 or the valve 17
  • the inlet channel 23 is essentially a flexible, tubular Riser pipe formed, which protrudes over the inner end 20 such that its Media inlet is in the area of the bottom of the storage vessel.
  • the riser 25 is here formed by a component separate from component 3 or 4 and in a holder 26 of component 3 arranged in a fixed position, but can also be made in one piece with said component be trained.
  • the tubular bracket 26 takes the outer end of the riser 25 on the inner circumference via a plug connection and forms with its outer end the inlet opening 24, which is axially outward and opposite to the valve 17 the piston 12 at rest can be axially displaced inwards.
  • the Inlet opening 24, like tube 26, is substantially entirely within the Working member 10, the tube 26 in one piece only from the inner end face of the Protrudes bottom wall 27 of the base body, which forms the inner end 20.
  • the working spring 10 forms a plurality of axially adjacent working sections 28 to 34, each immediately adjacent to one another Sections of different lengths, internal widths and / or external widths as well as bending or stiffnesses in opposite directions both in the radial direction and in can have axial direction.
  • the sections 28, 29, 30 as axially resilient or length-adjustable spring sections are provided, while sections 31 to 34 are essentially dimensionally stable against axial pull or pressure.
  • Sections 31, 32, 34 are intermediate sections of the working spring 10, while the section 33 the forms the outer end portion of the working spring 10.
  • the inner end 35 of the working spring 10 is formed by the end section 30 and supported directly against the base body 2 so that it is always opposite this occupies the same axial position and / or is frictionally or positively locked against rotation.
  • the working spring 10 is essentially hollow over its entire length, with continuous approximately continuous internal cross-sections, the cavity at outer end is closed pressure-tight by section 33.
  • the jacket of the working spring 10 is essentially over its entire length for the medium is impermeable, so that only the end 35 is an opening for the Forms medium from the interior of the working spring 10 to the inlet chamber 22.
  • the inner circumference 36 or the outer circumference 37 of the working spring 10 is different in the area of each Sections 28 to 34 and over its axial extent from the cylindrical shape, the outer circumference of the sections 31 to 34, however, partially or completely can be cylindrical.
  • the inner circumference 36 is essentially over all sections 28 to 32 and 34 of consistently constant structure, namely in the manner of a two-course Pointed thread formed by spirals 39 so that an inner mold after the Production of the working spring 10 can be easily removed from this.
  • the outer circumference 37 is only in the area of sections 28 to 30, but not in the area of sections 31 to 34 formed by corresponding coils 40 of a two-start thread, the compared to the internal thread so that in its area the jacket 38 of The respective section 28, 29, 30 has an approximately constant wall thickness.
  • the radial the innermost edge 41 of the helix 39 or the like can in the region of Bracket 26 slide centered on its outer circumference, like the radially outermost lying edges 42 of the outer coils 40 on the inner circumference of the housing 3 or the chamber 22 and / or the piston 12 can slide centered.
  • Sections 29 and 31 to 33 lie completely within the piston 12, the outer end of the section 28 extends into the piston 12, the section 34 is like the largest longitudinal part of the section 28 completely in the chamber 14, which is enlarged compared to the chamber 22, and the Section 30 is completely in the chamber 22 with the valve 17 closed while it partially protrudes into chamber 14 when valve 17 is open.
  • the component 10 is form-fitting in the longitudinal direction exclusively with respect to the component 9, 12, 13 fixed, and only in the area of the sections 31, 32, which so over a Snap connection 49 and an end stop in the inner circumference of the Piston 12 engage that they are in both opposite axial directions and / or Direction of rotation essentially free of play, frictionally or positively locked are.
  • the sections 31, 32 are annular coils radially over the outer circumference of the on both sides adjoining sections 28, 29, the outer circumference of the Section 31 has a snap member for resilient engagement in a snap opening Forms the inner circumference of the piston skirt and lies at a distance between the piston lips
  • the section 32 which is offset axially inward, lies on an inner shoulder of the piston 12 so that it positively against outward movements is blocked between sections 31, 32 is radially slightly opposite to both reduced centering section is provided, which on the inner circumference of the piston skirt is applied. All other sections are opposite the sections 31, 32 which are rigid with respect to one another Sections 28, 29, 30, 33, 34 axially and / or radially movable, namely as a result of Working stroke, the return stroke or pressure changes in the chamber 14.
  • the bottom wall of the piston 12 forms a throttle cross-section with its interior separated from the chamber 14 and substantially smaller than this chamber 44, in which are the sections 29, 33 and the valve body 16 and from which Media outlet leads out of the chamber 14 through the valve 15.
  • Chamber 44 stands over the throttle cross sections or through passages 45 distributed over the circumference constantly in line connection with the chamber 14, the passages 45 at Guide the outer circumference of sections 31, 32 and through axial grooves on the inner circumference of the piston 12 can be formed.
  • Die Helical channels 47, 48 are each provided with two gears, and also helical channel 48 changes its slope and its cross section or its volume with the Changes in length of the associated section 28, 29, 30, possibly at least approximately up to zero if axially adjoining spiral flanks at the end of the stroke strike each other.
  • the specific deformation of each spring 28, 29, 30 is about total length of the coil 40 is approximately constant.
  • valve seat 19 is formed by an annular rib, against which the opposite end face of the valve body 18 after a strikes the first part of the stroke rotating and thereby the valve passage pressure-tight locks.
  • the shortening of the spring 30 is ended, and the further stroke is only still the spring 28 effective, the inner end through the end 35 or the section 34 is secured against rotation.
  • valve body 18 could also be in the manner of a slide valve work by sealingly engaging its outer circumference comes with the inner circumference of the chamber 22 and is not limited by the stop, so that the spring 30 over the entire stroke of the piston 12 torsion or Changes in length is subject
  • each Section 28, 29, 30 can be followed by the subsequent section 31, 32 or 33 or 34 be form-locked or frictionally secured against rotation, especially with respect to the Base body 2 or the piston 12.
  • the piston 12 still guides at first closed valve 17 by the spring 28 from a first part of the return stroke which the chamber 14 is evacuated while the cavity of the working spring 10 through Magnification is already sucked in via channel 23.
  • the valve 17 then opens by the spring 30 so that the medium from the cavity and the chamber 22 abruptly is sucked into the chamber 14 until the piston 12 is in its initial position has reached.
  • the opening 24 is opposite the valve passage of the valve 17 offset outside. With this suction, the medium is in turn both within the Cavity as well as in the chambers 22, 14 set in a rotational flow, however its flow slows down.
  • Section 28 is longer than section 30 and acts as a return spring only on the piston 12, while the section 30 not only as Valve spring for the valve 17, but also acts as a return spring for the piston 12.
  • the Head 6 is fixedly connected to piston unit 9 in the axial direction.
  • the cover 4 is connected to the housing 3 with an axially engaging snap connection 49 connected, the sleeve-shaped edge at the outer end of the housing 3 both Cover 4 is encompassed on the inner and outer circumference in one piece with a fastening member 50 for fastening the base body 2 or the Entire device 1 formed in one piece on the memory
  • the fastening member 50 a surrounding the body 3 in the region of the chamber 14 at a distance Cap, which is offset in relation to the outer end of the body 3 and here has an internal thread for engaging an external thread on the neck of the memory.
  • the cover 4 is also in one piece with a sleeve-shaped seal 51 formed, which surrounds the body 3 on the outer circumference with a gap distance and their Outer circumference for the sealing engagement in the inner circumference of the storage neck is provided.
  • the lid 4 is also in one piece with one compared to the largest Reduced the outer width of the device 1 or the head 6 and the cover 50 in the width Approach 52 formed in one piece, which the snap connection 49, in the Starting position, the valve 15, and part of the section 29 and on External circumference for radial guidance of the head 6, which serves the approach 52 in each Position overlaps with its inner circumference.
  • the parts 50a, 51a, 52a are in one piece with the housing 3 trained, on the outer edge of which they connect.
  • the cover 4a lies completely within these parts 50a, 51a, 52a and is fastened via the snap connection 49a, the cover 4a here only having an outer circumference of an annular disk Flange engages in an inner periphery of the snap member of the housing 3.
  • the head 6 is guided radially with its outer circumference on the inner circumference of the projection 52a in the pump stroke end position surrounds the snap connection 49a on the outer circumference, whereby it also strikes the end wall of the link 50a.
  • Ventilation is provided, which expediently penetrates the dispenser 1 or the base body 2 from the outer end and leads directly along the outer circumference of the pump chamber jacket into the neck of the vessel and from there into the storage space .
  • the ventilation duct 53 runs along the outer circumference of the tappet 13 and the piston body narrowed with respect to the piston lips, the bottom wall of which directly connects in one piece to the tappet 13.
  • a ventilation valve 54 is provided, which in the starting position of the actuation 5 is closed in a pressure-tight manner by a stop and is opened immediately when the actuation begins.
  • the valve 54 is located approximately in the same axial area as the valve 15, the movable valve part being formed in one piece with the tappet 13.
  • the channel 53 is located directly on the inner circumference of that sleeve part of the cover 4 which engages in the inner circumference of the housing 3, opens on the inner end face of this sleeve part, then passes through the casing of the housing 3 between the two sleeve parts of the cover 4 and opens between the casing shell and the Seal 51 in the bottle neck.
  • the ventilation duct 53a and the valve 54a according to FIG. 2 are similarly formed, the starting sealing position of the rear sealing lip of the piston 12, which is axially outward in the form of a sleeve, lying immediately adjacent to the inner end of the cover sleeve and thereby limiting an annular space which is opposite the chamber 14 is closed pressure-tight and forms a section of the ventilation duct.
  • FIGS. 1 and 2 starting from the inner end 35 of the component 10, successively and immediately integrally adjoining sections 30, 34, 28, 32, 29 and 33 are provided, with sections 30, 28, 29 in operation Make changes in length and do not use sections 34, 32, 31, 33 Section 33, all other sections are annular in cross section and in the Ring wall closed. 3, section 32 is not provided, but only the section 31 b and the subsequent centering section. Of furthermore, the section 30b need not be designed to be extendable, but rather it can only allow radial compensatory movements.
  • the sleeve-shaped freely after protruding inner piston lip of the piston 12b here forms the valve seat 19b of the Valves 17b.
  • the piston 12b or this lip is extended so far inwards, that the sections 28b, 34b are always within the piston 12b.
  • the one as sliding surface The rounded outer circumference of section 34b is conical in the shape of a funnel enlarged inner circumference 19b of the piston lip in the starting position with a small distance across from. If the piston 12b is moved inward, the closing surface 18b of the Valve body on the surface 19b, and the valve 17b is closed.
  • the Pump chamber 14b here lies only within piston 12b, and sections 18b, 34b form an essentially stationary counter-piston, which together with the Piston 12b narrows the volume of the pump chamber 14b during the pumping stroke.
  • the Abutment 46b is here extended against the piston 12b in the starting position its outer end is immediately adjacent to the inner piston end.
  • the spring or section 30b can be considerably shorter than its width here. This also applies to the annular disc-shaped sections 31 to 34.
  • the section 28 is at most two to three times longer than its width, and the inside or outside width of sections 28 to 30 is equal to.
  • a separate cover 4 is not provided, but the closure 4c is formed solely by the outer piston lip of the piston 12c, which on Inner circumference of the neck 52c slides with a ring edge and at the same time the Valve body of the valve 54c forms.
  • the inner circumference of the neck 52c is to form the Valve seat or the associated section of the ventilation duct 53 with longitudinal grooves provided, which immediately after the start of the pump stroke through the valve body Type of a slide valve can be opened.
  • the outer piston lip has a larger one here Wider than the sliding edge of the inner piston lip, while the two piston lips according to Figures 1 to 3 have the same width.
  • the head 6c is axial here Fuse 55 secured against the continuous one-piece base body 2c, in particular in the starting position almost without play against pulling off.
  • the fuse 55 also serves to limit the stop of the initial position of the piston unit 9c, which includes the head 6c.
  • the locking members snap when axially Assembling the parts 2c and 6c or 9c into each other by themselves, whereby by a projecting collar on the inner circumference of the head shell and a counter collar on outer end and the outer periphery of the projection 52c are formed.
  • the cover 4d is secured against rotation at the inner end of the component 2d or 3d provided.
  • the cover 4d forms with its outer end face the valve seat 19d, the inlet 24d, the bracket 26d, the bottom 27d and directly with its interior End face, the abutment 46d and also the outer boundary of the chamber 22d or of channel 48d.
  • the inner end portion of the portion 30d has in the jacket 38d axial transfer openings through which the medium from the cavity of the Component 10d can flow into the chamber 22d and which up to the end surface 35d range or serve to prevent rotation.
  • the housing 3d forms at the outer end in one piece an annular disk-shaped end wall 56 which is penetrated by the plunger 13d and against the inner end face of the piston 12d strikes in the starting position.
  • the housing 3d has an annular disk shape on the outer circumference projecting and integrally formed with it mounting flange 50d, which is frustoconical in the manner of a disc spring.
  • mounting flange 50d which is frustoconical in the manner of a disc spring.
  • the design of the base body in particular the arrangement of the cover according to FIG. 5, can also be provided in the embodiments according to FIGS. 1 to 4.
  • the Device 1d can be installed very easily, especially in the top position, because successively the piston unit 9d, the component 10d and finally the cover 4d in the Housing 3d can be lowered while dealing with inclined surfaces self-centering in relation to the housing and against each other, with the insertion or snapping of the lid 4d also the snap connection of the Component 10d snaps into place.
  • the cover 4d engages in the inner circumference of the housing 3d the snap connection 49d.
  • the housing 3d has from the chamber 14d to the Connection 49d consistently the same inside width.
  • the snap connection between the Components 10d, 12d can also only be snapped into place after the cover 4d has snapped into place by a stroke of the unit 9d, in which the section 34d on the End face 19d strikes and then forms a rigid abutment for the spring 28d.
  • FIGS. 1 to 5 the same reference numerals are used for corresponding parts, but with different letter indices, which is why all Parts of the description apply mutatis mutandis to all embodiments and all training each embodiment may be provided in each of the other embodiments can.
  • the transition opening can also be between the cavity of component 10b and chamber 22b by at least one Transverse opening in the jacket and / or be formed in section 31 or 32. Is that Transition opening in section 28b or 30b, its outer circumference can with a with respect to the transition opening axially inwardly displaced section the valve body form the intake valve.
  • the piston can also protrude on the inner circumference Have cams or a spiral collar which is immediately adjacent to section 32 engages in the helical groove on the outer circumference of section 28 and thereby one of the Snap connection 43 forms the appropriate connection.
  • the inlet valve can further have a valve seat located within the component 10, e.g. the Outer circumference of the tube 25 or the bracket 26, on which then at the beginning of Pump stroke an inner circumference of the component 10, e.g. that of a cross channel penetrated section 32 and 31 runs as a valve body, the transverse channel and so that the connection between the cavity of the component 10 and the chamber 14 is closed becomes.
  • the inlet chamber is formed by this cavity.
  • this can also provided with appropriate ring grooves or other profiled axial sections be, which are each closed over the circumference and axially adjacent like a link lie to each other.

Landscapes

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

Claims (12)

  1. Distributeur pour des matières capables d'écoulement, qui comprend un corps de base (2, 2b, 2c, 2d) servant au logement de la matière, un moyen de transport, convoyant la matière d'un récipient à une sortie de matière (8), moyen de transport qui présente au moins deux éléments constructifs mobiles l'un par rapport à l'autre, et un ressort (10) chargeant ces deux ou bien ces divers éléments constructifs du moyen de transport, caractérisé en ce que ce ressort (10) est réalisé en tant que ressort à torsion.
  2. Distributeur d'après la revendication 1, caractérisé en ce que le ressort (10) présente au moins une section (28, 29, 30) élastique et au moins une section longitudinale présentant une résistance de forme plus élevée par rapport à cette dernière, telle qu'un élément intermédiaire (31, 32) ou bien un élément terminal (33), qui fait suite à une extrémité de raccordement de la section élastique (28, 29, 30), en ce que notamment le ressort (10) présente au moins deux sections élastiques (28, 29, 30) faisant suite l'une à l'autre par l'élément intermédiaire (31, 32, 34), et en ce que de préférence au moins une section longitudinale (31, 32, 33, 34) présentant une résistance de forme plus haute et au moins une section élastique (28, 29, 30) sont composées d'une seule pièce de bout en bout de matière plastique.
  3. Distributeur d'après la revendication 2, caractérisé en ce qu'au moins deux sections élastiques (28, 29, 30) distinctes du ressort (10) peuvent être modifiées dans leurs longueurs ensemble ou indépendamment l'une de l'autre, en ce que notamment des sections partielles de la section élastique (28, 29, 30) situées l'une derrière l'autre dans la section longitudinale, écartées et mobiles l'une par rapport à l'autre sont directement raccordées entre elles, et en ce que de préférence la section élastique (28, 29, 30) est disposée de manière assurée contre des sollicitations de torsion.
  4. Distributeur d'après la revendication 2 ou 3, caractérisé en ce qu'au moins une des sections transversales d'au moins une section élastique (28, 29, 30) diffère de manière substantielle dans l'épaisseur d'au moins une des sections transversales d'au moins une section longitudinale (31, 32, 33, 34) présentant une résistance de forme plus haute, en ce que notamment la section élastique (28, 29, 30) présente entre ses extrémités une épaisseur de paroi essentiellement constante de bout en bout, et en ce que de préférence la section élastique (28, 29, 30) présente au périmètre intérieur et/ou extérieur au moins un pas d'hélice (39, 40).
  5. Distributeur d'après une des revendications de 2 à 4, caractérisé en ce que la section élastique (28, 29, 30) est constituée par un corps d'enveloppe essentiellement fermé au périmètre, en ce que notamment un périmètre extérieur et/ou intérieur du ressort (10) est réalisé pour son guidage à glissement ou bien pour le guidage de la matière, et en ce que de préférence un espace creux s'étendant sur la plus grande partie de l'étendue longitudinale de la section élastique (28, 29, 30) est réalisé en tant qu'espace intérieur de ressort fermé au fond.
  6. Distributeur d'après la revendication 4 ou 5, caractérisé en ce que le pas d'hélice est une spire de ressort, qui présente parallèlement par rapport à son axe longitudinal (11) une étendue de section transversale de plusieurs fois plus grande que radialement par rapport à ceci, en ce que notamment la respective spire de ressort est une hélice à forte pente présentant une inclinaison de plus de 10°, et en ce que de préférence au moins deux spires de ressort limitrophes constituent le pas d'hélice à au moins deux filets.
  7. Distributeur d'après une des revendications de 2 à 6, caractérisé en ce que la section élastique (28, 29, 30) constitue au moins avec une section longitudinale (31, 32, 33, 34) faisant la suite et présentant une résistance de forme plus haute, un corps creux essentiellement de bout en bout, en ce que notamment la section longitudinale ayant une résistance de forme plus haute présente une surface intérieure s'écartant de la direction longitudinale du ressort (10), telle qu'au moins une surface intérieure oblique, et en ce que de préférence la section longitudinale (31, 32, 33, 34) avec une résistance de forme plus haute présente une hélice (39) continue de bout en bout sur la longueur de sa surface intérieure.
  8. Distributeur d'après une des revendications de 2 à 7, caractérisé en ce que la section longitudinale (31, 32, 33, 34) avec une résistance de forme plus haute saille vers l'extérieur, tel que transversalement vers l'extérieur au-delà de l'extrémité de raccordement au moins d'une section élastique (28, 29, 30) faisant la suite, en ce que notamment la section longitudinale (31, 32, 33, 34) avec une résistance de forme plus haute peut être déplacée avec les extrémités de raccordement des sections élastiques (28, 30) qui font la suite, par rapport aux extrémités de celle-ci opposées à cette section longitudinale de résistance de forme plus haute, et en ce que de préférence la section longitudinale (31, 32, 33) avec une résistance de forme plus haute présente une forme annulaire.
  9. Distributeur d'après une des revendications de 2 à 8, caractérisé en ce que la section longitudinale (31, 32) ayant une résistance de forme plus haute est assurée dans sa position contre des mouvement opposés parallèlement à l'axe longitudinal (11) en étant directement délimitée par arrêt par rapport à un des éléments de construction, en ce que notamment la section longitudinale (31, 32, 33, 34) ayant une résistance de forme plus haute est disposée ou encore réalisée de manière essentiellement indéformable à la traction, et en ce que de préférence la section longitudinale (31, 32) ayant une résistance de forme plus haute est fixée au moyen d'un raccordement à déclic (43).
  10. Distributeur d'après une des revendications de 2 à 9, caractérisé en ce que la section longitudinale (31, 32, 33, 34) ayant une résistance de forme plus haute forme au moins un élément d'assurage de position s'engageant directement dans un des éléments constructifs (12), tels qu'un collet de butée, un élément à déclic ou similaires, en ce que notamment la section longitudinale (34) ayant une résistance de forme plus haute forme une surface de fermeture (18) agissant avec une contre-surface (19, 19b) d'un des éléments constructifs (3, 12b), et en ce que de préférence l'élément terminal (33) à l'extrémité opposée à un élément intermédiaire (31, 32) d'au moins une section élastique (29) forme au moins un élément de commande, un élément de soupape (16), un arrêt, un élément de guidage ou bien un piston pilote du dispositif de distribution.
  11. Distributeur d'après une des revendications de 2 à 10, caractérisé en ce qu'au moins une section élastique (28, 29, 30) est prévue en tant que soupape ou encore en tant que ressort d'actionnement de soupape ou bien en tant que ressort de rappel pour un moyen d'actionnement (5) manuel, en ce que notamment entre deux sections longitudinales (31, 32, 34) de résistance de forme plus haute sont prévus un ressort de rappel principal (28) avec un trajet élastique maximal et sur les côtés des deux sections longitudinales ayant une résistance de forme plus haute, opposés à ce ressort de rappel (28), des ressorts de rappel de soupape (29, 30) pour une soupape de sortie (15) ainsi que pour une soupape d'admission (17) et en ce qu'un des ressorts de rappel de soupape (29) ou encore un élément terminal (33) peut être déplacé de manière essentiellement synchrone avec un piston déplaceur (12), et en ce que de préférence à l'intérieur du ressort (10) débouche une ouverture d'admission (24), à laquelle fait suite en direction d'écoulement la soupape d'admission (17) située à un périmètre du ressort (10).
  12. Distributeur d'après une des revendications précédentes, caractérisé en ce que le corps de base (2, 2b, 2c, 2d) présente au moins une des caractéristiques suivantes :
    12.1 il est composé seulement de deux éléments constructifs de corps de base (3, 4 ou encore 3d, 4d) individuels et s'engageant l'un dans l'autre de manière essentiellement immobile et au moins un de ces éléments constructifs (3, 4) est essentiellement indéformable ;
    12.2 il comprend
    12.2.1 un élément de fixation (50, 50d) pour la fixation du distributeur (1, 1d) sur un réservoir à matières,
    12.2.2 un joint d'étanchéité (51, 51d) pour la fermeture étanche d'un réservoir á matières,
    12.2.3 un logement pour un piston (12, 12d),
    12.2.4 au moins un siège de soupape (19, 19d),
    12.2.5 une raccordement d'aération (53) pour le réservoir à matières,
    12.2.6 un support (26, 26d) pour un conduit d'admission (25, 25d),
    12.2.7 une ouverture de passage pour un piston-poussoir d'actionnement (13, 13d),
    12.2.8 un assurage de position (55) pour une tête d'actionnement (6c) ;
    12.3 il est fermé à une extrémité par un couvercle (4, 4d),
    12.3.1 lequel est fixé au moyen d'un raccordement à déclic (49, 49d),
    12.3.2 lequel forme une surface de contact d'appui (46d) pour l'extrémité du ressort (10d),
    12.3.3 un siège de soupape (19d) d'une soupape d'admission (17d),
    12.3.4 une ouverture d'admission (24d) pour la matière, et
    12.3.5 qui se trouve à l'extrémité (20d) du corps de base (1d), opposée à l'extrémité d'actionnement.
EP95939254A 1994-11-19 1995-11-10 Distributeur de produits fluides Expired - Lifetime EP0792192B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4441263 1994-11-19
DE4441263A DE4441263A1 (de) 1994-11-19 1994-11-19 Austragvorrichtung für Medien
PCT/EP1995/004426 WO1996015855A1 (fr) 1994-11-19 1995-11-10 Applicateur de milieux

Publications (2)

Publication Number Publication Date
EP0792192A1 EP0792192A1 (fr) 1997-09-03
EP0792192B1 true EP0792192B1 (fr) 2003-08-20

Family

ID=6533684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95939254A Expired - Lifetime EP0792192B1 (fr) 1994-11-19 1995-11-10 Distributeur de produits fluides

Country Status (10)

Country Link
US (1) US6073814A (fr)
EP (1) EP0792192B1 (fr)
JP (1) JP3935204B2 (fr)
KR (1) KR100327289B1 (fr)
AT (1) ATE247526T1 (fr)
AU (1) AU703646B2 (fr)
BR (1) BR9510339A (fr)
DE (2) DE4441263A1 (fr)
ES (1) ES2203648T3 (fr)
WO (1) WO1996015855A1 (fr)

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KR20230016056A (ko) * 2020-05-29 2023-01-31 알피씨 브램라지 게엠베하 유체를 분배하기 위한 펌프
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Also Published As

Publication number Publication date
AU4115596A (en) 1996-06-17
JP3935204B2 (ja) 2007-06-20
KR100327289B1 (ko) 2002-04-17
EP0792192A1 (fr) 1997-09-03
JPH10513101A (ja) 1998-12-15
ATE247526T1 (de) 2003-09-15
US6073814A (en) 2000-06-13
BR9510339A (pt) 1999-08-31
DE4441263A1 (de) 1996-05-23
ES2203648T3 (es) 2004-04-16
AU703646B2 (en) 1999-03-25
KR970706908A (ko) 1997-12-01
WO1996015855A1 (fr) 1996-05-30
DE59510772D1 (de) 2003-09-25

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