EP3592470B1 - Vorrichtung zur abgabe eines produkts mit verbesserter auslösung - Google Patents

Vorrichtung zur abgabe eines produkts mit verbesserter auslösung Download PDF

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Publication number
EP3592470B1
EP3592470B1 EP18712970.5A EP18712970A EP3592470B1 EP 3592470 B1 EP3592470 B1 EP 3592470B1 EP 18712970 A EP18712970 A EP 18712970A EP 3592470 B1 EP3592470 B1 EP 3592470B1
Authority
EP
European Patent Office
Prior art keywords
piston
inlet
metering
outlet
cylinder body
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.)
Active
Application number
EP18712970.5A
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English (en)
French (fr)
Other versions
EP3592470A1 (de
Inventor
Pascal Hennemann
Gwénael DOULIN
Joey KURTZ
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.)
Promens SA
Original Assignee
Promens SA
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Filing date
Publication date
Application filed by Promens SA filed Critical Promens SA
Publication of EP3592470A1 publication Critical patent/EP3592470A1/de
Application granted granted Critical
Publication of EP3592470B1 publication Critical patent/EP3592470B1/de
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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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • 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
    • B05B11/1064—Pump inlet and outlet valve elements integrally formed of a deformable 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
    • B05B11/01—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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1061—Pump priming means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers

Definitions

  • the present invention relates to a device for dispensing a liquid or pasty product to be dispensed, in particular a cream, an ointment or a paste, in particular for cosmetic use.
  • the present invention relates to a dispensing device intended to be mounted on an opening of a container containing the product to be dispensed, so that the product exits through a dispensing orifice of the dispensing device by passing from the container opening and through the dispensing orifice.
  • this dispensing device forms a pump with a metering chamber making it possible to dispense a given quantity, corresponding to the volume of this metering chamber.
  • Dispensing devices are known in the prior art to be mounted on the neck of a container containing a liquid or a cream.
  • These devices comprise parts forming a pump, in particular a cylinder body fixed relative to the container and a piston descending in this cylinder body.
  • a central duct extends longitudinally inside the piston and the rod which causes it to move.
  • One end of this duct is connected to the metering chamber at the piston; the other end is connected at the top of the stem to an additional duct leading to a product dispensing orifice.
  • the actuation of the piston by a push button therefore allows the product present in the metering chamber formed between the bottom of the cylinder body and the bottom of the piston to be pushed back, through the central duct, as far as the dispensing orifice.
  • the piston moves in the direction Conversely, a depression is created, causing the suction of the product in the metering chamber.
  • the presence of non-return valves at the inlet of the metering chamber and at its outlet allows the product to be pushed back in the direction of the dispensing orifice when the piston descends and sucked in when it rises.
  • dispensing devices are known with three non-return valves: a first at the inlet of the metering chamber, a second at the outlet of the metering chamber and a third, called the dispensing valve, at the level of the dispensing orifice.
  • the dispensing valve During discharge, the force exerted by the product causes the opening of the dispensing valve and allows the dispensing of the product.
  • the purpose of this dispensing valve is to close the dispensing orifice and to protect the product, in particular the cream, against bacterial contamination or against the latter drying out between two uses.
  • This distribution valve nevertheless has a certain resistance to opening in order to prevent a low pressure from opening it, and therefore to avoid unintentional openings.
  • distribution devices such as that of the document WO2013001193A1 , comprising only two valves: a bottom valve at the inlet of the metering chamber and a distribution valve at the distribution orifice. They therefore do not include an intermediate valve at the metering outlet.
  • the communication spaces are filled with air. It is necessary to purge them of this air to fill them with liquid.
  • One or more back and forth movements must then be made with the piston.
  • the piston expels the air from the metering chamber towards these communication spaces, inside which the air is therefore compressed, until the pressure is sufficient to open the dispensing valve.
  • the air then leaves the dispensing device, which closes once the air has been evacuated and the pressure becomes insufficient to keep the dispensing valve open.
  • the piston goes up sucking a certain quantity of product in the container through the bottom valve. The operation is repeated if necessary until the complete purge of the air.
  • One solution may be to reduce the resistance of the dispensing valve, but this increases the risk of accidental dispensing and/or contact between the outside air and the liquid contained in the communication spaces, which can be inconvenient for certain products. , for example when the latter oxidize easily in air.
  • priming problems come directly from sealing problems at the level of the non-return valve, in particular in the case of an inlet non-return valve in the form of a ball in certain devices. of the prior art.
  • This check valve in the form of a ball moves according to gravity and the position of the distribution system and can lose its tightness.
  • the document FR2848618 discloses devices with two valves, the manual pump of which is reversed, namely that it is the piston which is fixed and the cylinder body mobile.
  • the non-return valve forms a single part with the piston.
  • This valve in fact forms part of the piston.
  • This part forms a cap, the annular skirt of which seals the side of the piston.
  • the bottom of the cap comprises a central opening cooperating with a stud formed at the top of the rigid base of the piston, so as to open or close the inlet into the metering chamber.
  • the tightness of this non-return valve can be improved.
  • a dispensing device is also known according to the document EP0479451A2 .
  • the technical problem that the invention aims to solve is therefore to improve the priming of a dispensing device, in particular when its metering chamber has a small volume, for example between 0.15 and 0.4 milliliters (ml ).
  • the inlet non-return valve is fixed on the piston with a sealing prestress between the piston and the non-return valve, which makes it possible to keep a sealing tightness permanently at rest, namely when the cylinder body is not moving, or when moving the cylinder body towards the retracted position, or end-of-travel position, whatever the position of the dispensing device during of this movement towards the retracted position.
  • this valve and this gasket can each be formed of a flexible material, compared to the first part of the piston made of a rigid material.
  • the material of the valve and the material of the seal can be identical.
  • the dispensing device can form a manual pump.
  • the metering chamber is defined between the top of the piston and the top of the metering chamber.
  • the inlet non-return valve is mounted on the piston facing the top of the metering chamber.
  • the deployed position corresponds to a position in which the top of the metering chamber is at a distance from the inlet non-return valve and the piston.
  • the retracted position corresponds to a position in which the top of the metering chamber is closer to the inlet non-return valve than in the extended position, in particular the top of the metering chamber being against the inlet check valve.
  • This packaging assembly is thus ready to be filled or filled and ready to be used.
  • top and bottom are applied according to the orientation of the various elements as they are illustrated in the figures 2 to 7 and 14 to 18 .
  • upstream and downstream are applied according to the direction of circulation of the product during its distribution.
  • the figure 1 illustrates an exploded view of the various parts forming a device 1 for dispensing a product L, a liquid in this example, according to an example of a first variant of a first embodiment of the invention.
  • the metering part 7 and the dispensing head 8 together form a pump 1. This pump corresponds to the dispensing device 1.
  • the figure 2 and 3 represent this pump mounted on a container, here a container R, filled with a liquid L. It may be a cosmetic and/or care product.
  • This pump 1 and this container R thus form an assembly for packaging the product.
  • the metering part 7 comprises a junction member 10 intended, as can be seen in picture 2 , to be mounted on the neck C of the container thus joining the pump 1 to this container R.
  • the junction member 10 may have a bottom 19 covered by a neck gasket 2, mounted between the walls of the open end of the container R, so as to seal against the junction member 10 and this open end.
  • the metering part 7 comprises a cylinder body 6 inside which is mounted a piston 3.
  • the piston 3 is fixedly mounted in the junction member 10, the cylinder body 6 being movable by sliding around this piston 3, along a sliding axis A.
  • This sliding axis here corresponds to the longitudinal axis of the dispensing device 1.
  • these elements 30, 40, 5, 60, 70, 10 can individually be formed in one piece. Dosing part 7 is therefore quite simple.
  • the dispensing head 8 may comprise a push button 80 integral with the cylinder body 6, so as to drive the latter downwards, by manual pushing above this push button 80.
  • This push button 80 comprises on one side, i.e. at the front, a dispensing orifice (not visible in figure 1 ) through which the liquid L exits during dispensing. This is located on the right figure 1 . On the other side, i.e. at the back, this push button 80 can, as here, be opened, thus giving access to a housing 85.
  • a cap 87 closes housing 85 of push button 80.
  • these elements housed inside the push button 80, the push button 80 and the cap 87 can individually be formed in one piece.
  • the dispensing head 8 is therefore quite simple.
  • the figure 2 illustrates the pump 1 before it is put into service, that is to say before the priming phase, which consists in purging the air contained between the communication spaces allowing the delivery of the liquid L to to dispensing orifice 81.
  • the junction member 10 may comprise a central part arranged lower than the portions for attachment to the neck C, so as to be able to protrude below the neck C to be in contact with the liquid L.
  • the bottom 19 thus has, in the central part, a passage orifice 20 arranged opposite the liquid L.
  • This passage orifice 20 forms the inlet of the liquid L inside the pump 1.
  • the pump is mounted by clipping the junction member 10 onto the neck C.
  • the junction member comprises a skirt 21, here formed of a double wall.
  • the lower end of the skirt 21 is open and has on its inner wall clipping lugs 22 projecting inwards and cooperating with clipping lugs 26 of the neck. Thus the junction member 10 is blocked on the neck C.
  • edges protrude radially and form an intermediate opening O.
  • the neck gasket 2 forms a dome covering the underside and the bottom of the junction member 10, being arranged around the passage orifice 20.
  • the neck gasket 2 can, as here, be molded onto the junction member 10.
  • the dome forming the neck gasket 2 has on a lower surface a circular lip 23, resting against the projecting edges of the intermediate opening O, thus forming a first sealing zone at the level of the open end. of the container R.
  • the cupola forming the neck seal 2 has an upper edge with a leaktight bearing zone 24 against the upper internal wall of the neck C, thus forming a second sealing zone at the open end of the container R.
  • the dome is arranged so that the neck gasket 2 is at a distance from the internal walls of the neck C between these two sealing zones. Thus, a dry zone is formed between these two sealing zones, which helps to reduce the risk of contamination.
  • a tubular portion 12 which extends from the bottom 19 of the junction member 10 longitudinally and upwards.
  • the piston 3 is mounted the cylinder body 6.
  • the base 60 of the cylinder body 6 has an internal space delimited at the top by a top wall 64.
  • the sliding tube 61 extends longitudinally downwards from the top wall 64 and an open end 74.
  • the internal space is delimited by bottom by an open end 74 and on the sides by the sliding tube 61.
  • the cylinder body 6 is mounted to the maximum, in the deployed position, thus releasing a volume between the top wall 64 and the top of the piston 3, this volume forming a metering chamber 100.
  • the top wall 64 thus forms the top of this dosing chamber 100.
  • the piston 3 may comprise a central duct 34 leading directly via passages 37 to openings 35 leading into the metering chamber 100. These openings form the liquid inlets L in the metering chamber 100, hereafter dosing inputs 35.
  • the central duct 34 opens directly into the tubular portion 12; there is thus a direct communication with the liquid L, which can be routed to the metering inlets 35.
  • metering inlets 35 are closed by the inlet non-return valve 5, which allows a fluid entering the metering chamber 100 to pass but prevents it from leaving it through these metering inlets 35.
  • the inlet check valve 5, further illustrated in figures 9 and 10 has an inlet membrane 50 arranged downstream of these metering inlets 35 and opposite them, so as to be able to close them.
  • the top wall 64 comprises an annular groove, hereinafter top groove 66, arranged around a central zone 65 of the top wall 64.
  • top groove 66 is arranged around this top groove 66 a flat portion forming a peripheral zone 67.
  • the central zone 65, the top groove 66 and the peripheral zone 67 can be arranged concentrically with respect to the sliding axis A.
  • this upper groove 66 that is to say at the top of the metering chamber in picture 2 , is arranged an orifice forming a metering outlet 73, through which the fluids, the liquid after the priming or the air during the priming, can leave the metering chamber 100.
  • a metering outlet 73 through which the fluids, the liquid after the priming or the air during the priming, can leave the metering chamber 100.
  • the inlet valve 5 comprises a shape that is at least partially complementary to the top wall 64. According to the first variant, this complementarity is substantially total.
  • the top wall 264 is complementary only on the sides of the valve 5.
  • the inlet non-return valve 5 comprises a central portion 54 whose surface forms a disk of the same diameter as the central zone 65 of the top wall 64.
  • This inlet membrane 50 comprises an upper flank 51 and opposite it, a lower flank 52, these two flanks being separated by a slice 53.
  • This slice 53 is circular and the inlet membrane 50 is arranged so that this slice 53 is circumscribed in a circle arranged perpendicular to the sliding axis A.
  • the upper side 51 is convex while the lower side 52 is concave.
  • the convex shape of the upper flank 51 is complementary to the top groove.
  • the upper surface of the inlet valve 5 can therefore be complementary to the surface of the top wall 64, in particular, as here, cover the majority of its surface.
  • the inlet membrane 50 does not extend as far as the internal surface of the sliding tube 61, so as to cover the top wall only as far as the peripheral zone 67, in the end-of-travel position.
  • the piston 3 may comprise an upper lip 41 arranged on the upper peripheral edge of the piston, as can be seen illustrated in the figure 11 .
  • a portion of the piston 3, here this upper lip 41, can protrude all around the edge 53, and, as can be seen in picture 3 , when the cylinder body 6 is in the end-of-travel position, the upper lip 41 is arranged to cover this peripheral zone 67 of the top wall 64.
  • the inlet membrane 50 is housed inside the top groove 66, its upper side 51 hugging the bottom of this top groove 66.
  • the central zone 65 comes exactly to cover the central portion 54.
  • the upper lip 41 comes to marry the surface of the peripheral zone 67. It follows that during priming, all the air of the metering chamber 100 is expelled, and this all the more easily in the case where the metering outlet 73 is arranged at the bottom of this top groove 66.
  • the piston base 30 may comprise a sleeve 31 which is fitted onto the tubular portion 12.
  • the piston base may also comprise an upper part wider than the sleeve 31.
  • This upper part may comprise a skirt 32 extending downwards around, at a distance from and facing east of this sleeve 31, so as to form an annular groove, in which the top of the portion fits. tubular 12.
  • interlocking shoulders 33 are arranged at the bottom of the sleeve 31 and are clipped below complementary internal shoulders 75 arranged on the internal wall of the tubular portion 12.
  • This sleeve 31 may include, as here, a slot 38 allowing the approximation of the interlocking shoulders 33 by deformation of the sleeve 31.
  • This sleeve 31 is arranged at the bottom and opens into the tubular portion 12, the inside of the sleeve 31 forming the central duct 34.
  • the upper part of the base of the piston 3 can comprise clipping lugs 36, between which the stud 55 is clipped.
  • the passages 37 and the metering inlets 35 are in this case provided between these lugs clip 36 and stud 55.
  • the inlet membrane 50 is capable of deforming upwards leaving the passage open to the liquid L through the metering inlets 35, when pressure is exerted against its lower side 52 or when a depression is exerted on the side of its upper flank 51.
  • the force applied here from downstream to upstream on the inlet membrane 50 will press the latter above dosing inlets 35 and against the piston 3, so that the dosing inlets 35 will be closed.
  • the inlet valve 5 therefore forms a non-return valve, allowing the liquid L to pass towards the inside of the metering chamber 100 but preventing it from leaving it via these metering inlets 35.
  • the piston in order to improve the seal between the side wall of the cylinder body and the piston 3, the piston comprises a second part 40, which forms a seal, here a tubular seal 40, illustrated in detail in figure 11 .
  • This tubular seal 40 is fitted directly around the upper part of the piston 3.
  • This tubular seal 40 comprises two open ends delimited here respectively by an upper lip 41 and a lower lip 42. These lips protrude from the upper part at the top and bottom. This makes it possible to achieve a double seal against the internal wall of the sliding tube 61.
  • the seal may comprise an annular projection 44, the largest diameter of which is arranged so as to be in contact with the internal wall of the sliding tube 61.
  • This annular projection makes it possible to improve the sliding guidance cylinder body 6.
  • the tubular seal 40 is at a distance from the internal wall of the sliding tube 61. A space is therefore created between the sealing zones formed by these lips, reducing the risk of a formation of a continuous film of liquid between them.
  • the receptacle formed by the junction member 10 extends between an open end 11 and its bottom 19.
  • the interior of the receptacle is formed by side walls 17 having a shoulder forming an end stop 18.
  • the tubular portion 12 can, as here, delimit the passage orifice 20.
  • a shaft 14 is arranged concentrically around this tubular portion 12 so as to form between this tubular portion 12 and this shaft 14 a first lower groove 13, inside which slides the sliding tube 61 between the end position stroke and deployed position.
  • the inner wall of the shaft 14 comprises a recess 15 projecting inwards. This recess 15 is in contact with the outside of the sliding tube 61.
  • the sliding tube 61 comprises at its open end a bulge 71 which projects outwards, and which comes into contact with the recess 15 in the end position.
  • the pair of joints 70 of the cylinder body 6 comprises an upper joint 72 which surrounds a cooperation part 69 forming the upper part of the base 60 of the cylinder body. This provides the seal between the cooperation part and the dispensing head 8.
  • the pair of gaskets 70 of the cylinder body 6 includes a gasket forming a bulge ring 71 which thus forms the bulge at the end of the sliding tube 61.
  • the bottom of the sliding tube 61 comprises a recess 62 reducing its external diameter and thus making it possible to produce a reception portion 63 of the bulge ring 71.
  • the pair of seals 70 can be made in one piece by overmolding on the base 60 of the cylinder body.
  • a groove can be formed in the cylinder body 6 to connect the cooperation part 69 and the reception portion.
  • an injection cord formed in this groove connects the upper seal 72 and the bulge ring 71.
  • the diameter of the sliding tube 61 above the bulge ring 71 can correspond approximately to the internal diameter delimited by the recess 15, so that in the end position the walls of the barrel 14 are without constraint, and so that when the spring 4 pulls the cylinder body 6 upwards, the sliding tube 61 slides against the recess 15 unconstrained over most of the movement. This facilitates the raising of the cylinder body upwards
  • the material of the annular bulge 71 is more flexible than that of the junction member, it is the bulge ring 71 which will compress. This reinforces the seal.
  • the coil spring 4 is arranged inside the receptacle and around the barrel 14.
  • the spring 4 bears on one side at the bottom of a second lower groove 16, formed between the barrel 14 and the side wall 16 of the receptacle. .
  • the base of the cylinder body 60 includes a collar 76 wider than the sliding tube 61.
  • the spring bears on the other side against this collar 76.
  • the collar may include a stop assembly formed by radial ribs 68 , against which the spring 4 rests.
  • the pump 1 is suitable for liquids containing no preservatives and therefore having to be protected from the outside air.
  • the metering outlet 73 is connected to the dispensing orifice 81 via communication spaces and an outlet non-return valve 9 directly closes this dispensing orifice 81.
  • these communication spaces may successively comprise three intermediate conduits and an upper space 82.
  • the upper space is delimited by the passage through the reducer 83, the tank membrane 96, and the passage in a front wall of the push button 80 leading to the dispensing orifice.
  • the reducer 83 can, as here, have the shape of a ring, or a reduction ring 83.
  • a first intermediate duct 84a is formed in the cylinder body and leads from the metering outlet 73 to a second intermediate duct 84b arranged in a transverse wall of the push button 80.
  • the second intermediate duct 84b opens into a third intermediate duct 84c formed inside the reducer 83 and opening into the upper space 82.
  • the hermetic tank 86 can be mounted, here by interlocking, in the housing 85 of the push button 80, so that the edges of the tank membrane 96 are pinched between a corresponding internal shoulder of the push button 80 and the edge of the tank 86, so that the tank membrane 96 hermetically closes the tank 86.
  • This tank membrane 96 is here integral with the obturator 90, which extends axially towards the dispensing orifice 81.
  • This shutter 90 comprises at its free end a stud 91 arranged so as to be able to hermetically close the dispensing orifice 81.
  • the auxiliary return member 97 is in permanent connection with the tank membrane 96 and comprises two elastically deformable stages 92, 93, in particular with different stiffnesses and/or geometries.
  • the first stage 92 maintains a permanent restoring force of predetermined value against the tank membrane 96, and consequently on the obturator 90.
  • the second stage 93 is interposed between the first stage 92 and the bottom 89 of the tank 86, and maintains a return force greater than that of the first stage 92, acting only when the tank membrane 96 is stressed.
  • the first and second stages 92, 93 here have different geometries.
  • the first and second stages 92, 93 can come from a central core 94.
  • the first stage 92 can extend radially around the latter, forming a dish 98, the outer edge of which rests on the inner wall of the vessel 86, for example in grooves or against shoulders of this inner wall.
  • This cup 98 is made of an elastic material, and its zone between the core 94 and the external edge forms an elastic articulation.
  • the second stage 93 can extend axially from the same central core 94, forming a bell whose outer edge rests on the bottom 89 of the tank 86.
  • This bell 99 is made of an elastic material, and its zone between the core 94 and the outer edge form a resilient joint.
  • the tank 86 being hermetically closed, it is established that, when the dispensing device is at rest, the pressure P2 of the tank 86 is equivalent to the pressure of the ambient air at the time of the initial assembly pump 1, i.e. equivalent to the initial atmospheric pressure.
  • the pressure P3 of the metering chamber 100 follows the evolution of the pressure P1 of the environment around the pump 1.
  • the pressure difference between the pressure P3 of the metering chamber and the pressure P2 of the tank generates a force on the tank membrane 96, deforming it towards the dispensing orifice 81 and thus reinforcing the pressure on the shutter 90 , and therefore sealing.
  • the auxiliary return member 97 can be made in one piece by molding an elastomeric thermoplastic (TPE) or vulcanized thermoplastic (TPV) material or based on silicone or any other material offering similar characteristics.
  • TPE elastomeric thermoplastic
  • TPV vulcanized thermoplastic
  • the tank membrane 96 and its shutter 90 can be made in one piece by molding an elastomeric thermoplastic (TPE) or vulcanized thermoplastic (TPV) material or based on silicone or any other material offering similar characteristics.
  • TPE elastomeric thermoplastic
  • TPV vulcanized thermoplastic
  • the shutter can as here extend axially and be hollow. This makes it possible to house therein, as here, a reinforcing piece 95 in a more rigid material.
  • This reinforcing piece 95 extends from said tank membrane 96 and is mechanically linked with the first stage 92 of the auxiliary return member 97.
  • the part here forming the tank membrane 96 and its shutter 90 and the reinforcing part 95 can be obtained by bi-material injection.
  • the material making up the push button 80, the tank membrane 96, the reducer 83, the cylinder body 6, the inlet non-return valve and the base 30 of the piston 3 can comprise antibacterial agents.
  • the reducer 83 can be placed inside the volume defined between the tank membrane 96 and the internal walls of the housing 85 push button 80.
  • This reducer 83 makes it possible to produce the tank membrane 96 with a larger diameter than the volume available around the shutter 90.
  • the housing 85 has a size allowing to have a size of tank membrane 96 and the reducer the space available between the walls of the housing and the obturator 90.
  • the push button 80 is fixed integrally with respect to the cylinder body 6 by clipping its flange 76 inside an appropriate groove of the push button 80. This is also the case in the second variant.
  • pump 1 The operation of pump 1 is now detailed with reference to the figures 2 to 7 .
  • the push button 80 is in the deployed position, as is the cylinder body 6 integral with this push button 80, the top wall 64 being at a distance from the piston 3.
  • the metering chamber 100 is therefore at its maximum volume.
  • the ducts formed by the tubular portion 12, the central duct 34 and the passages 37, as well as the metering chamber 100 and the various communication spaces 84a, 84b, 84c, 82 are filled with air.
  • a downward pressure is then exerted on the push button 80 with respect to the orientation of the pump in picture 2 .
  • the cylinder body 6 then leaves the deployed position, illustrated in figure 2 , towards the end position, illustrated in picture 3 , sliding along the piston 3.
  • the air is then compressed in all of the communication spaces, in particular in the upper space 82, causing the rearward deformation of the tank membrane 96 and therefore the retreat of the shutter 90 along the axis d shutter B and backwards, thus disengaging the pin 91 from the dispensing orifice 81.
  • the cup 98 and the bowl 99 are deformed, the core 94 moving away from the dispensing orifice 81 towards the bottom 89 of the tank 86, the edges of the cup 98 and of the bowl 99 remaining in fixed support against the internal wall of the tank 86.
  • the air is expelled through the distribution orifice 81.
  • the pressure becomes equal again between the outside of the pump 1 and the inside of the upper space 82 causing the return of the shutter towards the dispensing orifice 81 under the return force exerted by the cup 98 and the bowl 99.
  • the pin 91 then closes the dispensing orifice 81, as illustrated in figure 4 .
  • the top wall 64 which had come into complementary contact with the inlet membrane 50 and the upper lip 41, moves away from the piston gradually increasing the volume of the metering chamber 100.
  • a depression is thus created, resulting in the exercise of a force on the inlet membrane 50, which then deforms towards the top wall 64, so that its edge 53 moves away from the piston 3, the concavity of the upper flank 51 and the convexity lower side 52 decreasing.
  • the inlet membrane 50 releases the metering inlets 35, which causes the suction of air in all the communications leading to the liquid L. The latter is thus also sucked up and rises in the tubular wall 12, then in the central duct 34, then in the passages 37, passes through the metering inlets 35, and begins to fill the metering chamber 100.
  • At least one further downward pressure is required here to completely purge the air. This number of downward pressures is not limiting.
  • the air is first evacuated. Then the piston continuing to approach the top wall 64, the liquid L present in the metering chamber 100 reaches the top wall 64, passes through the inlet by the metering outlet 73, rises along the intermediate conduits 84a , 84b, 84c, then fills the upper space 82 around the obturator and reaches the dispensing orifice 81. The air has thus been completely expelled.
  • the liquid L no longer presses on the tank membrane 96, which as before is biased forwards by the auxiliary return member 97, causing the dispensing orifice 81 to close again, as illustrated in figure 7 .
  • each pressure will cause a distribution of a volume of liquid L equal to the volume of the metering chamber 100.
  • the figures 16 to 18 therefore illustrate a second variant similar to the first variant of the first embodiment. A complete description of these figures 16 to 18 is therefore not repeated. The characteristics of the example of the first variant previously described are therefore applicable to the example of the second variant, unless otherwise stated below.
  • the push button 80, the outlet check valve, with its shutter 90 with hermetic tank 96, and the inlet check valve 5 are identical between the variant of the figures 1 to 13 and that of figures 16 to 18 .
  • the same references are therefore used for these elements.
  • the piston 3, 203 is therefore in two parts, respectively 30 and 40 and 230 and 240.
  • the tubular seal 40, 240 has a portion with a flared surface 45, 245 upwards, here formed at the top of the upper lip 41, 241. This ensures the tight clamping of the cup edges 53 against this flared surface 45 , 245. This reinforces the sealing resulting from the prestressing of the inlet valve 5 against the piston 3, 203.
  • This prestressed tightening is visible in particular in picture 2 , for the first variant, and in figure 18 , for the second variant. This optimizes the tightness of the inlet valve 5 and therefore the priming.
  • this flared surface 45, 245 with this inlet valve 5 in the form of a cup makes it easier to achieve tight clamping around the metering inlets 35, 235, formed between the clipping lugs 36, 236.
  • the clipping lugs 36 and 236 are provided with a convex upper portion 36a, 236a, here formed by a rounded bulge, the convexity of which is arranged opposite the concavity of the concave shape of the membrane 50.
  • a convex upper portion 36a, 236a here formed by a rounded bulge, the convexity of which is arranged opposite the concavity of the concave shape of the membrane 50.
  • the length h2 of the seal 240 is greater than the stroke h1 of the piston 203. Therefore, when the cylinder body 206 is in the retracted position, against the piston 203, namely in the end-of-travel position, the lower lip 242 of the tubular seal 240 is below the low position L of the top of the upper lip 241, namely the position that this lip 241 has in the deployed position. As during use, the product only comes into contact with parts of the walls of the metering chamber 300 above this low position L, which correspond to a contact zone z1 with the metered product, it follows that this lower lip 242 never comes inside this contact zone z1.
  • the connecting member 210 also forms in this second variant a receptacle receiving the push button 80 and the spring 4 via its open end 211.
  • its bottom 219 is different in that it is extended downwards with respect to the first variant.
  • the tubular portion 212, the barrel 214 and the first lower groove 213 formed between them are extended downwards, so that the height h3 between the bottom of the lower lip 242, in the deployed position, and the bottom of this first lower groove 213 is greater than the stroke h1 of the cylinder body 206.
  • the top wall 264 has been simplified. It has the shape of a dome, with the metering outlet 273 arranged in its peripheral rounded portion 264'.
  • the latter is of complementary shape to the outer lateral sides of the concave shape of the membrane 50, so that these outer lateral sides hug the peripheral rounded portion 264' and close off the metering outlet 273 as closely as possible.
  • an attached tube 310 is mounted in the passage orifice 220 located at the bottom 219 of the connecting member 210.
  • This passage orifice is intended to communicate with the intermediate opening O of the container R, so that the 'lower end of the tube 310 forms the inlet E' of the product in the dispensing device 201.
  • the tube 310 can, as here, have an internal section 312 with a diameter that is at least 20% less than that of the passage orifice 220.
  • the tube is fitted into the internal duct of the tubular portion 212, through the passage orifice 220, in particular up to the proximity of the lower opening 238 of the central duct 234 of the piston 203, which itself is clipped into the internal duct of the tubular portion 212.
  • the tube 310 extends below the passage orifice 220.
  • the depression created in the latter during the ascent of the push button 80 reinforces the closing of the outlet valve 9 and allows here at the nipple of the shutter 90 to enter the distribution hole 81 to have an optimal seal.
  • this depression may be insufficient for fluid products, such as water, to ensure optimum sealing.
  • fluid products such as water
  • the outlet valve 9 is closed again in an optimal manner, thus greatly reducing the risk of bacterial retro-contamination.
  • the insert tube 310 works in association with the inlet valve 5 to generate a sufficient pressure drop in the dose chamber 300, for all liquids as fluid as water and up to to very viscous products, to optimize the closure of the dispensing orifice 81 without penalizing the priming with air, which is critical for a pump with a very small dose and a bacteria-tight end closure.
  • the dispensing device 101 comprises a metering part 107 partly identical to that of the first embodiment. However, the dispensing head 108 is different.
  • a simple outlet non-return valve 109 is mounted at the outlet of the metering chamber 200, at a distance from the dispensing orifice 181.
  • This second embodiment has the advantage of being simpler. This second embodiment will preferably be used with liquids or creams comprising preservatives.
  • the metering part 107 and the dispensing head 108 therefore also together form a pump 101, corresponding to the dispensing device 101.
  • this pump 101 is mounted on a container, here a container R, intended to be filled with a liquid, thus forming a packaging unit for this liquid.
  • the metering part 107 here comprises a neck gasket 102, a junction member 110, a coil spring 104 almost identical to those of the first embodiment and arranged together in the same way, as can be seen in figure 15 .
  • the metering part 107 also includes a cylinder body 106 inside which is mounted a piston 103.
  • the piston 103 is fixedly mounted in the junction member 110, the cylinder body 106 being movable by sliding around this piston 103, along a sliding axis HAS'.
  • This sliding axis here corresponds to the longitudinal axis of the dispensing device 101.
  • the piston 103 is close to that of the first embodiment.
  • the piston base 130 comprises a sleeve 131 fitted onto the tubular portion 112 of the junction member 110 and an upper part wider than the sleeve 131, this piston base 130 is on the other hand devoid of a skirt. In addition, it is provided with ribs 132 arranged around the periphery of the upper part of this piston base 130.
  • the tubular seal 140 differs from that 40 of the first variant of the first example in that it comprises ribs on its internal surface cooperating with the ribs 132 of the piston base 130. This makes it possible to reinforce the fitting of the tubular seal 140 on this piston base 130. These ribs are present on the second variant of the first embodiment illustrated in figures 16 to 18 .
  • the outer surface of the tubular seal 140 is identical to that of the first embodiment, in particular as illustrated in figure 11 , and the same corresponding characteristics apply here.
  • the piston base 130 also comprises a first series of clipping lugs 136 of similar shape to those 36 of the piston 30 of the first example embodiment, and thanks to which is fixed, as in the first example, a first check valve -inlet return 105.
  • This valve 105 is here of a shape identical to that of the inlet non-return valve 5 of the first embodiment.
  • the suction of fluid from the container R is done in the same way as in the first embodiment, in particular as regards the sliding of the cylinder body 106 around the piston 103 from the end of stroke position to the deployed position. , and as to the opening of the metering inlet 135 by the deformation of the inlet check valve 105.
  • the arrangement at the level of the outlet 173 of the metering chamber 200 differs from the first embodiment, as can be seen in the example illustrated.
  • outlet non-return valve 109 is fixed above the cylinder body 106, so as to allow the opening and closing the metering chamber outlet 200, hereafter metering outlet 173.
  • the top 164 of the metering chamber 200 can be formed by a second series of clipping lugs 139 of similar shape to those 136 of the piston 103 which allow the attachment of the inlet check valve 105.
  • this top also forms the top of cylinder body 106.
  • metering outlets 173 are provided between some or all of the clipping lugs of this second series 139.
  • metering outlets 173 are closed by the outlet non-return valve 109, which allows a fluid leaving the metering chamber 200 to pass but prevents it from entering it through these metering outlets 173.
  • This outlet non-return valve 109 can be formed in a manner similar to the inlet non-return valve 105, in particular with a central portion and a membrane arranged around this central portion, hereinafter outlet membrane.
  • non-return valves 105 and 109 are identical and interchangeable. The fact of having here identical non-return valves allows a standardization of these parts.
  • this outlet non-return valve is not necessarily of identical shape to that of the inlet non-return valve. It can also be of identical shape but in different proportions.
  • these check valves 105 and 109 are identical to the inlet check valve 5 of the first embodiment. Reference may be made for this to the figures 9 and 10 , for these valves 105 and 109. The references of the figures 9 and 10 are given below for the details of the characteristics of the non-return valves 105 and 109.
  • the outlet membrane 50 is capable of deforming upwards, leaving the passage open to the liquid through the metering outlets 173, when pressure is exerted in the metering chamber 200 against its lower side 52.
  • the pressure is negative in the metering chamber 200, the force being applied here from downstream to upstream on the membrane 50 of the non-return valve of output 109 will press it above the metering outlets 173 and against the top of the cylinder body 106, so that the metering outlets 173 will be closed.
  • the lugs of the second series of clipping lugs 139 here overhang the metering chamber 200. Their underside forms a lower surface 139'.
  • this lower surface 139' can have a shape complementary to the upper side 51 of the outlet non-return valve 109. This makes it possible to cover this lower surface 139', therefore part of the top of the metering chamber, with the membrane 50 of the outlet non-return valve 109. This reduces the dead volumes at the top of the metering chamber 200.
  • This annular bulge 171 and this upper seal 172 can be obtained with the same material and/or can be obtained together during the same injection operation. The latter can be made in the same way as in the first embodiment.
  • the upper seal 172 may comprise a central opening delimited by a flared surface 172', in particular conical, this opening widening from upstream to downstream.
  • the second non-return valve 109 can be mounted so that the edge 53 of its membrane 50 bears above and against this flared surface 172', in the rest position and during the suction of the fluid from the passage orifice 120 of the junction member 110.
  • the junction member 110 is here mounted on the neck C of the container R, its intermediate opening O in communication on one side with the interior of the container R and on the other with the passage orifice 120.
  • the dispensing head 108 is simpler here.
  • This head 108 comprises a push button 180, in which the base of the cylinder body 160 is fixedly fitted, so as to actuate the cylinder body 106 downwards and thus to achieve the discharge of the fluid, while compressing the spring 104 towards the bottom.
  • the spring 104 pulls the push button 180 upwards and therefore the cylinder body 106, causing the fluid to be drawn into the metering chamber 200.
  • the metering outlets 173 can, as here, be connected to the dispensing orifice 181 of the push button 180 via a single conduit 184, opening into an upper space 182, into which the metering outlets 173 directly open when they are open.
  • a reducer 183 can be arranged in this upper space 182 to reduce the dead volumes.
  • the inlet check valve 5 of the first embodiment and the inlet check valve 105 and the outlet check valve 109 of the second embodiment are molded in a flexible material, in particular a TPE, with a shore A hardness of between 30 and 90. Furthermore, in these examples, the membrane 50 of these valves 5, 105, 109 has a thickness of between 0.15 and 0.3 mm.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Coating Apparatus (AREA)

Claims (19)

  1. Vorrichtung (1; 101; 201) zur Abgabe eines flüssigen oder pastösen abzugebenden Produkts (L), umfassend:
    - ein Verbindungsorgan (10; 110; 210), das dazu bestimmt ist, am offenen Ende (O) eines Behälters (R), der das abzugebende Produkt umschließt, eingesetzt zu werden,
    - einen Kolben (3; 103; 203), der fest in Bezug auf das Verbindungsorgan (10; 110; 210) eingerichtet ist,
    - einen Zylinderkörper (6; 106; 206), in dem der Kolben (3; 103; 203) derart eingerichtet ist, dass er eine Dosierkammer (100; 200; 300) zwischen dem Kolben (3; 103; 203) und dem Zylinderkörper (6; 106; 206) definiert, der Kolben (3; 103; 203) umfassend mindestens eine stromaufwärtige Öffnung, die einen Einlass der Dosierkammer (100; 200; 300) bildet, den sogenannten Dosiereinlass (35; 135; 235), und die Dosierkammer (100; 200; 300) umfassend einen Auslass, den sogenannten Dosierauslass (73; 173; 273), wobei der Zylinderkörper (6; 106; 206) entlang des Kolbens (3; 103; 203) zwischen einer ausgefahrenen und einer eingefahrenen Position gleitend bewegbar ist, wobei die Abgabevorrichtung ferner ein Einlassrückschlagventil (5; 105) aufweist, das auf dem Kolben (3; 103; 203) montiert ist und umfassend eine Einlassmembran (50), die eine konkave Formaufweist, wobei der Kolben (3; 103; 203) einen ersten Teil (30; 130; 230) und einen zweiten Teil umfasst, der eine Dichtung (40; 140; 240) bildet, die um mindestens einen Abschnitt des ersten Teils (30; 130; 230) eingepresst oder vergossen ist, diese Dichtung (40; 140; 240) aus einem flexiblen Material gebildet ist im Vergleich zu dem ersten Teil (30; 130; 230) des Kolbens (3; 103; 203) aus einem starren Material, wobei diese Dichtung (40; 140; 240) die Abdichtung zwischen dem Kolben (3; 103; 203) und der oder den seitlichen Wänden des Zylinderkörpers (6; 106; 206) verstärkt, wobei der Kolben (3; 103; 203) und das Einlassrückschlagventil (5; 105) getrennte Teile bilden und derart eingerichtet sind, dass:
    - wenn der Zylinderkörper (6; 106; 206) unbewegt ist oder sich in die eingefahrene Position verschiebt, die Einlassmembran (50) in dichtender Klemmung mit der Oberseite der Dichtung (40; 140; 240) ist und den Dosiereinlass (35; 135; 235) schließt, und
    - die konkave Form der Einlassmembran (50) sich elastisch verformt und den Dosiereinlass (35; 135; 235) öffnet, wenn sie einem Unterdruck ausgesetzt wird, der in der Dosierkammer (100; 200; 300) bei der Verschiebung des Zylinderkörpers (6; 106; 206) in seine ausgefahrene Position erzeugt wird.
  2. Abgabevorrichtung (1; 101; 201) nach Anspruch 1, umfassend eine Abgabeöffnung (81; 181) in Verbindung mit dem Dosierauslass (73; 173; 273), wobei die Abgabevorrichtung (1; 101; 201) dadurch gekennzeichnet ist, dass sie ferner ein Auslassrückschlagventil (9; 109) umfasst, das zwischen dem Dosierauslass (73; 173; 273) und der Ausgabeöffnung (81; 181) eingerichtet ist, um einen Durchgang zwischen dem Dosierauslass (73; 173; 273) und der Ausgabeöffnung (81; 181) unter der Ausübung einer Druckerhöhung auf dieses Auslassrückschlagventil (9; 109) freizugeben, wobei die Abgabevorrichtung (1; 101; 201) nur zwei Ventile, dieses Auslassrückschlagventil (9; 109) und das Einlassrückschlagventil (5; 105), umfasst.
  3. Abgabevorrichtung (1; 101; 201) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Einlassmembran (50) die Form einer Schale aufweist, deren Rand, im Folgenden Einlassschalenrand (53) genannt, den Umfang der konkaven Form begrenzt, wobei die konkave Form dem Dosiereinlass (35; 135; 235) zugewandt ist und der Einlassschalenrand (53) um den Dosiereinlass (35; 135; 235) herum eingerichtet ist, wobei der Einlassschalenrand (53) unter elastischer Spannung an der Oberseite der Dichtung (40; 140; 240) bei der dichtenden Klemmung anliegt, und der Einlassschalenrand (53) sich von der Oberseite des Kolbens (3; 103; 203) bei einem Unterdruck in der Dosierkammer (100; 200; 300) wegbewegt.
  4. Abgabevorrichtung (1; 101; 201) nach Anspruch 3, dadurch gekennzeichnet, dass die Dichtung (40; 140; 240) eine zentrale Öffnung (46) umfasst, die durch eine konisch erweiterte Oberfläche (45; 145; 245) begrenzt ist und in deren Innerem der Dosiereinlass (35; 135; 235) eingerichtet ist, wobei sich diese zentrale Öffnung (46) von stromaufwärts nach stromabwärts vergrößert, wobei das Einlassrückschlagventil (5; 105) derart montiert ist, dass der Einlassschalenrand (53) bei der dichtenden Klemmung über und an dieser konisch erweiterten Oberfläche (45; 145; 245) aufliegt.
  5. Abgabevorrichtung (1; 101; 201) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Einlassrückschlagventil (5; 105) einen zentralen Abschnitt (54) umfasst, der an der Spitze des Kolbens (3; 103; 203) befestigt ist, wobei die Membran (50) um diesen zentralen Abschnitt (54) eingerichtet ist.
  6. Abgabevorrichtung (1; 101; 201) nach Anspruch 5, dadurch gekennzeichnet, dass der obere Teil des ersten Teils (30; 130; 230) des Kolbens (3; 103; 203) Clipstifte (36; 136; 236) umfasst, zwischen denen der zentrale Abschnitt (54) eingeclipst ist, wobei der oder die Dosiereinlässe (35; 135; 235) zwischen diesen Clipstiften (36; 136; 236) und dem eingeclipsten Teil des zentralen Abschnitt (54) angeordnet sind.
  7. Abgabevorrichtung (1; 201) nach Anspruch 6, dadurch gekennzeichnet, dass die Clipstifte (36; 236) einen konvexen oberen Abschnitt (36a; 236a) umfassen, dessen Konvexität gegenüber der Konkavität der konkaven Form eingerichtet ist.
  8. Abgabevorrichtung (1; 101; 201) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Kolben (3; 103; 203) in einem rohrförmigen Abschnitt (12; 112; 212) des Verbindungsorgans (10; 110; 210) montiert ist.
  9. Abgabevorrichtung (201) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Hub des Kolbens (203) kleiner als die Länge der Dichtung (240) ist.
  10. Abgabevorrichtung (1; 201) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Spitze der Dosierkammer (100; 300) eine Scheitelwand (64; 264) bildet, innerhalb derer der Dosierauslass (73; 273) ausgebildet ist, und dadurch, dass in der eingefahrenen Position zumindest ein Abschnitt der Oberfläche der Scheitelwand (64; 264) vollständig bedeckt ist, dieser Abschnitt umfassend den Dosierauslass (73; 273), wobei diese Bedeckung entweder durch eine stromabwärtige Oberfläche (51) des Einlassrückschlagventils (5) oder durch eine stromabwärtige Oberfläche (51) des Einlassrückschlagventils und einen oder mehrere Abschnitte (41; 241) des Kolbens (3; 203) ausgeführt ist.
  11. Abgabevorrichtung (1; 201) nach Anspruch 10, dadurch gekennzeichnet, dass das Einlassrückschlagventil (5) oder das Einlassrückschlagventil (5) und der Kolben (3; 203) Flächen aufweisen, die der Scheitelwand (64; 264) zugewandt sind, wobei diese Flächen eine Form vorweisen, die komplementär zu der Form zumindest des Abschnitts der Oberfläche der Scheitelwand (64; 264) ist, der den Dosierauslass (73; 273) umfasst.
  12. Abgabevorrichtung (101) nach einem der vorstehenden Ansprüche in Kombination mit Anspruch 2, dadurch gekennzeichnet, dass das Auslassrückschlagventil (109) im Bereich des Dosierauslasses (173) auf dem Zylinderkörper (106) und außerhalb desselben montiert ist.
  13. Abgabevorrichtung (101) nach Anspruch 12, dadurch gekennzeichnet, dass das Auslassrückschlagventil (109) eine Auslassmembran (50) umfasst, die eine konkave Form aufweist, die in der Lage ist, sich elastisch zu verformen, derart, dass :
    - wenn die Auslassmembran (50) einem in der Dosierkammer (200) erzeugten Unterdruck bei der Verschiebung des Zylinderkörpers (106) in seine ausgefahrene Position ausgesetzt wird, die Auslassmembran (50) den Dosierauslass schließt, indem sie in dichtender Klemmung mit der Oberseite des Zylinderkörpers (106) ist, wobei die konkave Form der Auslassmembran (50) derart verformt wird, dass eine Rückstellkraft dieser Membran (50) gegen die Oberseite des Zylinderkörpers (106) derart erzeugt wird, dass eine Spannung der dichtenden Klemmung aufrechterhalten wird, und
    - wenn der Zylinderkörper (106) unbewegt ist oder sich in die Hubendposition verschiebt, sich die konkave Form der Auslassmembran (50) elastisch derart verformt, dass das Fluid durchgelassen wird.
  14. Abgabevorrichtung (1; 201) nach einem der vorstehenden Ansprüche in Kombination mit Anspruch 2, dadurch gekennzeichnet, dass das Auslassrückschlagventil (9) derart eingerichtet ist, dass es die Abgabeöffnung (81) schließt oder öffnet.
  15. Abgabevorrichtung (1; 201) nach Anspruch 14, dadurch gekennzeichnet, dass das Auslassrückschlagventil (9) aufeinanderfolgend umfasst:
    - einen Verschluss (90) der Abgabeöffnung (81),
    - eine elastisch verformbare Tankmembran (96), die mit dem Verschluss (90) verbunden ist,
    - einen hermetischen Tank (86), der durch die Tankmembran (96) hermetisch geschlossen ist, wobei das Auslassrückschlagventil (9) derart eingerichtet ist, dass die Seite der Tankmembran (96) außerhalb des Tanks in Fluidverbindung mit einem Verbindungsraum steht, der die Abgabeöffnung (81) und den Dosierauslass (73; 273) verbindet, derart, dass einerseits die Tankmembran (96) bei der Betätigung des Zylinderkörpers (6; 206) in die eingefahrene Position durch das Produkt zur Verformung vorgespannt wird, derart, dass die Freigabe des Verschlusses (90) von der Ausgabeöffnung (81) ausgelöst wird, und andererseits die Tankmembran (96) bei einem Unterdruck in der Dosierkammer (100; 300) in Gegenrichtung vorgespannt wird, wodurch somit der Verschluss (90) in eine Schließposition der Abgabeöffnung (81) zurückgestellt wird.
  16. Abgabevorrichtung (201) nach Anspruch 15, dadurch gekennzeichnet, dass sie ein aufgebrachtes Rohr (310) umfasst, das in der Durchgangsöffnung (220) des Verbindungsorgans (210) montiert ist, das dazu bestimmt ist, mit der Öffnung (O) des Aufnahmebehälters (R) in Verbindung zu stehen, derart, dass das untere Ende des Rohrs den Einlass (E') des Produkts in die Abgabevorrichtung (201) bildet.
  17. Abgabevorrichtung (201) nach Anspruch 16, dadurch gekennzeichnet, dass das Rohr (310) einen Innenquerschnitt mit einem Durchmesser besitzt, der um mindestens 20 % kleiner als derjenige der Durchgangsöffnung (220) ist, und sich unterhalb der Durchgangsöffnung (220) fortsetzt.
  18. Abgabevorrichtung (1; 101; 201) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Kolben (3; 103; 203) eine untere Umfangslippe (42; 242) umfasst, die mit der oder den seitlichen Wänden des Zylinderkörpers (6; 106; 206) in Kontakt steht.
  19. Einheit zur Verpackung eines flüssigen oder pastösen abzugebenden Produkts, die Einheit umfassend:
    - einen Behälter (R), der dazu bestimmt ist, das abzugebende Produkt (L) zu umschließen, oder dieses umschließt, und
    - eine Abgabevorrichtung (1; 101; 201) nach einem der vorstehenden Ansprüche, und die am offenen Ende (O) des Behälters derart eingesetzt ist, dass eine Durchgangsöffnung (20; 120; 220) des Verbindungsorgans (10; 110; 210) mit dem Inneren des Behälters in Verbindung steht.
EP18712970.5A 2017-03-07 2018-03-07 Vorrichtung zur abgabe eines produkts mit verbesserter auslösung Active EP3592470B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751827A FR3063661B1 (fr) 2017-03-07 2017-03-07 Dispositif de distribution d'un produit avec amorcage ameliore
PCT/FR2018/050527 WO2018162850A1 (fr) 2017-03-07 2018-03-07 Dispositif de distribution d'un produit avec amorçage amélioré

Publications (2)

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KR (1) KR102487773B1 (de)
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ES (1) ES2938629T3 (de)
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FR3108586B1 (fr) * 2020-03-26 2022-06-10 Coradin Sas Bouchon adapte pour contenir un fluide
KR20220029414A (ko) * 2020-09-01 2022-03-08 캐논 가부시끼가이샤 밀봉 부재, 그 제조 방법, 압력 조정 기구, 액체 토출 헤드, 및 액체 토출 장치
FR3114575B1 (fr) 2020-09-29 2022-09-23 Promens Sa Dispositif de distribution comportant un clapet anti-retour à point dur
FR3139122B1 (fr) 2022-08-30 2024-08-30 Promens Sa Dispositif de distribution de produit comportant un soufflet hélicoïdal

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EP0479451B1 (de) * 1990-10-01 1996-03-20 Take 5 Handbetriebener Zerstäuber mit mehreren Flüssigkeitsbehältern
FR2848618B1 (fr) * 2002-12-13 2006-06-09 Lablabo Pompe doseuse a actionnement manuel

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ES273524Y (es) * 1983-07-14 1985-04-16 Monturas Y Fornituras S.A. Pistola proyectora de liquidos
JP2572951Y2 (ja) * 1992-03-18 1998-05-25 株式会社吉野工業所 ノズル
FR2711554B1 (fr) * 1993-10-22 1995-12-22 Oreal Ensemble de distribution à reprise d'air commandée.
FR2765560B1 (fr) * 1997-07-02 1999-08-13 Oreal Distributeur pour un produit liquide ou pateux comportant des moyens de pompage ameliores
JP3901444B2 (ja) * 2000-10-31 2007-04-04 株式会社吉野工業所 オール樹脂ポンプ
DE60100013T2 (de) * 2001-07-17 2003-04-03 Guala Dispensing S P A Schäumvorrichtung
DE10234417A1 (de) * 2002-07-29 2004-02-12 Alfred Von Schuckmann Spender für pastöse bis fließfähige Massen
DE102007027889A1 (de) * 2007-06-18 2008-12-24 Megaplast Gmbh & Co. Kg Spender für flüssige bis pastöse Massen
FR2943324B1 (fr) * 2009-03-18 2011-05-27 Promens Sa Dispositif de distribution d'un produit liquide a pateux par pompe de dosage a faible volume mort
US20130037572A1 (en) * 2009-09-24 2013-02-14 Pwristine Inc. Miniature dispenser for liquids or powders with seperable body and reservoir for the liquid and powder
FR2961191B1 (fr) * 2010-06-10 2012-07-27 Rexam Healthcare La Verpillier Pompe pour la delivrance d'un produit, comportant un piston coulissant dans une chambre de dosage
FR2961192B1 (fr) * 2010-06-10 2012-07-27 Rexam Healthcare La Verpillier Dispositif de distribution de produit comprenant une pompe et un embout de distribution
FR2976981B1 (fr) * 2011-06-27 2013-07-05 Promens Sa Systeme de fermeture d'un dispositif de distribution a basse pression d'un produit liquide a pateux
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FR3008629B1 (fr) * 2013-07-18 2018-03-09 Promens Sa Dispositif de prelevement et de distribution d'un produit visqueux, sans reprise d'air
FR3013614B1 (fr) * 2013-11-26 2018-03-23 Nemera La Verpilliere Pompe avec reprise d'air
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FR2848618B1 (fr) * 2002-12-13 2006-06-09 Lablabo Pompe doseuse a actionnement manuel

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RU2019131146A (ru) 2021-04-07
CN110418678A (zh) 2019-11-05
JP2020512246A (ja) 2020-04-23
RU2019131146A3 (de) 2021-04-21
US10821456B2 (en) 2020-11-03
FR3063661B1 (fr) 2021-05-21
JP7092804B2 (ja) 2022-06-28
FR3063661A1 (fr) 2018-09-14
KR102487773B1 (ko) 2023-01-12
PL3592470T3 (pl) 2023-03-20
WO2018162850A1 (fr) 2018-09-13
RU2759648C2 (ru) 2021-11-16
KR20190125419A (ko) 2019-11-06
ES2938629T3 (es) 2023-04-13
EP3592470A1 (de) 2020-01-15
US20200047202A1 (en) 2020-02-13
CN110418678B (zh) 2021-10-08
CA3054595A1 (fr) 2018-09-13

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