EP2654967A2 - Dispositif distributeur pour liquide - Google Patents

Dispositif distributeur pour liquide

Info

Publication number
EP2654967A2
EP2654967A2 EP11782625.5A EP11782625A EP2654967A2 EP 2654967 A2 EP2654967 A2 EP 2654967A2 EP 11782625 A EP11782625 A EP 11782625A EP 2654967 A2 EP2654967 A2 EP 2654967A2
Authority
EP
European Patent Office
Prior art keywords
discharge
valve body
valve
outlet
discharge device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11782625.5A
Other languages
German (de)
English (en)
Other versions
EP2654967B1 (fr
Inventor
Matthias Wochele
Jürgen Greiner-Perth
Philipp BRAIK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar Radolfzell GmbH
Original Assignee
Aptar Radolfzell GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aptar Radolfzell GmbH filed Critical Aptar Radolfzell GmbH
Publication of EP2654967A2 publication Critical patent/EP2654967A2/fr
Application granted granted Critical
Publication of EP2654967B1 publication Critical patent/EP2654967B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0054—Cartridges, i.e. containers specially designed for easy attachment to or easy removal from the rest of the sprayer
    • 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
    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure 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
    • B05B11/1064—Pump inlet and outlet valve elements integrally formed of a deformable material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2068—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is lowered by the pressure of the contents and thereby opening the 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside 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
    • B05B11/1001—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

Definitions

  • the invention relates to a discharge device for a liquid, in particular for a pharmaceutical liquid, comprising a main housing, a liquid reservoir, a discharge opening and a conveyor arranged in the main housing for conveying liquid from the liquid storage to the discharge opening.
  • Generic discharge devices which are designed in particular as transportable and for the end user to be handled dispenser, are well known in the art. They have a main housing within which or attached to the liquid reservoir is provided, the liquid is conveyed by means of the conveyor, which may be designed in particular as a piston pump, to the discharge opening.
  • pasty media such as, for example, toothpaste are understood to mean liquid.
  • the object of the invention is to improve a generic discharge especially with regard to cost and ease of manufacture.
  • the conveying device comprises a pumping chamber whose internal volume is variable via actuation of an actuating handle, wherein an inlet channel leading from the fluid reservoir to the pumping chamber and an outlet channel leading from the pumping chamber to the discharge port are provided.
  • an outlet of the inlet channel into the pumping chamber is surrounded by an inlet of the outlet channel or an inlet of the outlet channel is surrounded by an outlet of the inlet channel.
  • the outlet of the inlet channel and the inlet of the outlet channel are separated by an intermediate wall.
  • the intake port is associated with an intake valve having an intake valve seat and a relatively movable intake valve body, the intake valve opening at a negative pressure in the pumping chamber.
  • the outlet channel is associated with an outlet valve with an outlet valve seat and a contrast movable outlet valve body, wherein the outlet valve opens at an overpressure in the pumping chamber.
  • the outlet valve body and / or the inlet valve body is a valve body portion of an elastically deformable valve body component, which is fastened with a valve body side fixing region on said intermediate wall.
  • the main housing of a discharge device is understood to be that outer housing component which surrounds at least the conveying device. As will be explained below, the main housing does not need to surround all the components of the discharge device.
  • the liquid reservoir which is provided for receiving a liquid, can be arranged completely within the main housing or can be coupled thereto.
  • the volumetrically variable pumping chamber into which the inlet channel opens and from which the outlet channel leaves, has a special design, according to which the pumping chamber-side ends of the inlet channel and the outlet channel are arranged concentrically to one another, i. one end of the channel surrounds the other end of the ring in an annular manner.
  • the inlet channel can be arranged on the inside and be surrounded on the outside by the outlet channel.
  • the inlet valve body and / or the outlet valve body is fastened and extends outwardly and / or inwardly with an at least partially elastic valve body section.
  • the valve body component is preferably attached to the direction of the pumping chamber facing the end of the intermediate wall, in particular attached to this frictionally holding.
  • This design allows a particularly simple embodiment of the functional elements of the respective valve. Furthermore, it allows a very simple assembly, since the valve body component can be easily mechanically or manually pushed onto said wall, and ensures that the valve body component, the pumping chamber already at the entrance of the inlet channel or the Auslasska- - - Limited, so that a very small dead volume of the pumping chamber can be achieved. Under this dead volume that volume is understood, which remains even with the greatest possible reduction of the pumping chamber between the inlet valve and the outlet valve. A large dead volume leads to problems in the commissioning of the discharge, since during startup in the pumping chamber still air is included, which can oppose a desired pressure increase due to their compressibility and therefore can prevent reliable opening of the exhaust valve.
  • outlet valve body section and the inlet valve body section are formed together by the valve body component which is in one piece in this case.
  • the valve body component which is in one piece in this case.
  • elastic valve body sections of the valve body component extend both inwards and outwards, starting from the fixing region provided on the intermediate wall.
  • the valve body component can be made as a whole from a single elastic plastic. This plastic is then used with optionally adapted wall thicknesses both in the fixing area and on the at least one valve body section use. In order to simultaneously provide a slight deformability in the region of the valve body portion forming the valve body and to ensure a secure fixing of the valve body component to the intermediate wall, it may also be advantageous to provide the valve body component in one piece from two plastic materials of different elasticity.
  • the fixing region is preferably made of a first plastic material of lower elasticity and the at least one - -
  • Valve body portion made of a second plastic material of higher elasticity.
  • Such a one-piece plastic component made of two plastic materials can be produced by first producing the sections of the first plastic material and subsequently casting the second plastic material onto these areas.
  • the inlet valve and / or the outlet valve are designed in such a way that their respective valve body section, in a closed state, rests circumferentially radially sealingly against an annular counter wall as a valve seat or a counter pin as a valve seat.
  • the outer of the two channels may be surrounded by a substantially circular cylindrical wall, on the inside of which a lip region of the valve body section rests in the closed state.
  • this lip region has a cone-segment-shaped shaping, so that it can be reliably and easily detached from this wall in the event of overpressure on one side and is pressed radially against this wall in the case of overpressure on the opposite side and thus keeps the valve closed.
  • a lip section at the distal end of the corresponding valve body section may, in one embodiment, bear on the lateral surface of a centrically arranged opposing pin.
  • a portion of the valve body member extends like a bridge over the internal channel, the corresponding valve body portion being attached to this channel spanning portion and extending outwardly in a cone section shape and there on an inner side of the cylindrical one Intermediate wall is applied.
  • valve body section abuts axially sealingly against a ring-shaped mating surface or on an end face of a mating pin as a valve seat in a closed state.
  • This embodiment is particularly suitable for the internal channel.
  • the valve body portion provided for this purpose may extend inwardly from the intermediate wall and may have only one hole-shaped opening, which rests in the closed state of the valve on the end face of the counter pin and is lifted off at a sufficient overpressure or negative pressure, so that the liquid through the opening can flow through it.
  • the main housing has a passage opening which is connected to an outlet side of the conveyor. Furthermore, the discharge opening is associated with a discharge valve having a discharge valve body and a discharge valve body, a discharge valve spring and a discharge valve chamber, the discharge valve body being force-biased against the discharge valve seat by a first end of the discharge valve spring to a closed position and wherein the discharge valve is configured such that the discharge valve body passes through sufficient fluid pressure in the valve chamber against the force of the Austragventilfeder is displaced into an open position.
  • an applicator housing which can be fastened to the main housing in the region of the passage opening from the outside, wherein the discharge opening and the discharge valve seat are provided on the applicator housing and wherein the discharge valve spring is supported with its second end on the main housing.
  • the described design therefore provides that the housing of the discharge is at least two parts.
  • the main housing encloses the conveyor and has a passage opening leading to the outside.
  • the applicator housing is sealingly attached to the main housing, so that the liquid delivered by the conveyor in the direction of the passage opening flows into the applicator housing, which houses the predominant parts of the discharge valve. If the pressure generated by the conveyor is sufficiently large, the discharge valve body is displaced against the force of the discharge valve spring so that it releases the discharge opening and allows discharge of the liquid. Due to the fact that the discharge valve spring is supported according to the invention on the outside of the main housing, the installation of such a discharge device is very simple.
  • the components assigned to the applicator that is to say at least the applicator housing and the discharge valve body, are fastened to the main housing, whereby the discharge valve spring is inserted, which is preloaded by the said assembly process until the applicator housing is fixed.
  • this separation of the housing makes it possible to complete the main housing together with the integrated conveyor without the need to already determine the type of applicator or the spring strength of the valve spring. This is only necessary in a later assembly step in which the applicator housing together with the discharge valve body and discharge valve spring are mounted.
  • the main housing and the applicator housing are to be connected in such a way that the liquid flowing through the through opening into the applicator housing can not escape in a transition area between the housings.
  • This can be achieved, for example, by means of corresponding circular-cylindrical webs on the main housing and on the applicator housing, which form a press fit in the mounted state. - - the.
  • the main housing and the applicator housing are connected to each other by means of a latching connection. Other connection methods such as a thread can be used here.
  • the Austragventilfeder is arranged in a spring chamber which is sealed together by the main housing and the discharge valve body. Since the Austragventil analyses must be intended to be movable, the Austragventil analyses and lying on the outer side portions of the main housing for this preferably form a sealing sliding, by which prevents liquid from entering into the spring chamber.
  • Another aspect of the present invention provides that in a generic discharge of the liquid storage is designed as a tube with a slightly deformable outer wall, further comprising an actuating handle for actuating the conveyor at a right angle to a main extension axis of the discharge is designed to be movable.
  • the discharge device is designed so that its liquid storage is in the form of a tube, ie in the form of a one-sided densely compressed cylindrical section made of plastic or thin-walled metal.
  • This tube is freely accessible from the outside, for example for uncomplicated replacement of the tube-shaped liquid storage.
  • the invention consists in that the actuating direction for the use of the conveyor at a right angle to the main extension direction of the discharge device is movable.
  • the main extension axis is defined by the coupling direction of the tube-shaped liquid reservoir to the main housing of the discharge device and / or the discharge of liquid through the discharge device. Because of this - -
  • Main extension direction is at a right angle to the direction of actuation of the actuating handle, the deformability of the tube-shaped liquid storage is no obstacle in the operation of the discharge. A force application of the liquid reservoir from the outside does not take place. Instead, the user engages around the main housing of the discharge device, on which the actuating handle is provided, and presses the actuating handle against the main housing to effect the discharge process.
  • the conveyor is preferably provided that it is designed as a piston pump with a cylinder with a cylindrical wall and a movable piston within the cylinder with a voltage applied to the wall piston lip. It is advantageous if the cylinder is provided fixed in the actuating handle and when the piston is provided stationary to the main housing. Thus, the distribution of the cylinder and the piston is reversed to most conventional piston pump dischargers. It has been found that the arrangement of the cylinder on the usually geometrically simpler actuating handle and in particular, if this is made of plastic, leads to a better dimensional stability of the cylinder.
  • the wall of the cylinder over its entire length which comes into contact with the piston during an actuating movement of the actuating handle, has a constant wall thickness. By avoiding any cracks in the wall thickness, which may be formed for example by ribs, the dimensional accuracy of the cylinder is further improved. - -
  • Fig. 1 to 6 a first embodiment of an inventive
  • Fig. 1 shows a first embodiment of a discharge device according to the invention. The individual components of this discharge device 10 are shown in Fig. 4.
  • the discharge device 10 has a main housing 20 and an adjoining this main housing 20 Apphkatorgephaseuse 30 with a discharge opening 32.
  • a piston pump conveyor 40 Within the main housing 20 designed as a piston pump conveyor 40 is provided, which can be actuated by means of an actuating handle 22 in the manner described below.
  • liquid storage 50 On the side facing away from the Apphkatorgephaseuse 30 of the main housing 20 a in Fig. 1 only partially shown liquid storage 50 is coupled. From the liquid reservoir 50 to a pumping chamber 64 of the conveyor 40 extends An inlet channel 68 extends from the pumping chamber 64 in the direction of the discharge opening 32.
  • the discharge device 10 is adapted to be actuated by the actuating handle 22 in a direction 2a which is at right angles to a main extension axis 4, which by the coupling direction of the liquid reservoir 50 to the main housing 20 and the discharge direction defined by the discharge opening 32 is defined.
  • liquid including pasty media in connection with the present invention, can be conveyed from the liquid reservoir 50 through the inlet channel 60 into a pumping chamber 64 of the conveyor 40 and from there further through the outlet channel 68 to the outlet opening 32 ,
  • valves 62, 66, 70 are provided for controlling the discharge operation in this first embodiment.
  • the inlet valve 62 and the outlet valve 66 control the liquid inlet and the liquid outlet into the pumping chamber 64 and out of the pumping chamber 64, respectively.
  • the discharge valve 70 is directly associated with the discharge opening 32. It allows a discharge through the discharge opening 32 only when the liquid pressure in the outlet channel 68 and thus in a discharge valve chamber 70d is sufficiently high.
  • the particular noteworthy special features of the discharge device 10 of FIG. 1 lie in the division of the housing into a main housing 20 and an applicator housing 30 as well as in the design of the inlet valve 62 and the outlet valve 66.
  • the conveyor 40 has the already - - Pumping chamber 64, whose volume can be changed by the actuating handle 22.
  • the pump cylinder 22a is provided on the actuating handle 22, within which a piston 24c is movable, which is part of a stationary to the main housing 20 arranged inner member 24.
  • a pump chamber-side end 60a of the inlet channel 60 and a pump chamber-side end 68a of the outlet channel 68 are arranged concentrically with one another.
  • the end 62a is bounded on the inside by a counter pin 24a and on the outside by an intermediate wall 24b and thus has an annular shape in the direction of the actuating direction 2a.
  • the end 68a of the outlet channel 68 also has an annular shape in the direction of the actuating direction 2a. It is arranged on the outside of the intermediate wall 24b and in turn is bounded on the outside by the wall 24c forming the piston.
  • An integral valve body component 80 which is shown in detail in FIG.
  • the valve body component 80 is made as a composite component of two types of plastic. It has a fixing area 82, which has the shape of a cylindrical sleeve and which is made of a relatively difficult to deform plastic. An inwardly directed valve body section 84 and an outwardly directed valve body section 86 are molded onto this fastening area 82 by means of a deformable second plastic. In the mounted state of FIG.
  • valve body sections 84, 86 close the inlet from the inlet channel 60 into the pumping chamber 64 and from the pumping chamber 64 in the absence of pressurized fluid
  • inlet valve 62 this is achieved in that the inwardly facing end of the valve body portion 84 on the front side of the counter pin 24a on - - lies.
  • valve 66 closing is achieved in that the lip-like formed at the distal end valve body portion 86 rests against the inside of the cylindrical wall 24c.
  • the valve body portion 86 has a conically widening in the direction of the intended flow direction shape.
  • valves 62, 66 in the manner described ensures that opening only takes place at the intended pressure conditions. Thus, it requires a negative pressure in the pumping chamber 64 opposite the inlet channel 60, so that the inlet valve 62 opens by the valve body portion 84 lifts from the counter pin 24a. However, there is an overpressure in the pumping chamber 64, the valve body portion 84 is thereby pressed against the counter pin 24a, so that a backflow of the liquid from the pumping chamber 64 is not to be feared.
  • the radially acting exhaust valve 66 opens when there is an overpressure in the pumping chamber 64 relative to the exhaust passage 68 through which the valve body portion 86 is forced inwardly to lose contact with the wall 24c. However, if there is an overpressure in the outlet channel 68 opposite the pumping chamber 64, due to the conical shape of the valve body portion 86, this will be forced outwardly and thus radially against the wall 24c.
  • valves 62, 66 thus ensure the proper operation of the conveyor 40.
  • the inlet valve 62 is reliably closed by the resulting pressure in the pumping chamber 64 when the actuating handle 22 in direction 2a, while the exhaust valve 66 is opened, thus allowing an inflow of the liquid from the pumping chamber 64 into the outlet channel 68.
  • the arrows 6 in Fig. 2a illustrate this. - -
  • valve body member 80 and the valve body portions 84, 86 in the pump chamber 64 immediately at the outlet of the inlet channel 60 and at the inlet of the outlet channel 68 ensures that a very small dead volume of the conveyor 40 is achieved.
  • Fig. 2a illustrates this. Except for the annular gap 64a remains between inlet valve 62 and outlet valve 66 in the depressed state of the actuating handle 22 no additional volume.
  • the discharge device has a third valve 70, which is provided as a discharge valve 70 directly in front of the discharge opening 32.
  • This discharge valve 70 has a discharge valve body 70a, which is permanently subjected to a force to the left by a discharge valve spring 70b with reference to FIG. As a result, the valve body 70a is pressed against the valve seat 70c.
  • a discharge valve chamber 70d which is part of the outlet channel 68. Only when a fluid pressure has been achieved here, which leads to a compression of the Austragventilfeder 70b, the discharge valve body 70a is displaced, so that the outlet port 32 is released.
  • the conveyor 40 Since a comparatively high pressure level is present in the outlet channel 68, the conveyor 40 must work against this pressure level. The pressure caused by actuation in the pumping chamber 40 must be - - be greater than the opening pressure of the discharge valve 66. For this reason, the very low dead volume of the pumping chamber 64 with the volume 64a is advantageous, since in the course of startup the amount of air existing in the dead volume 64a is small and therefore does not preclude the buildup of a sufficiently high pressure in the pumping chamber 64.
  • the second feature already mentioned, which consists of splitting the housing into a main housing 20 and an applicator housing 30, is that this modular design makes it possible to finish the discharge device 10 separately, with the exception of the applicator housing 30 and the outlet valve 70 , It can then occasionally a particularly suitable for a particular application applicator 30 be coupled. This is determined in the manner shown in Fig. 5 by means of locking lugs 30 b on deflectable webs 30 a on the main housing 20.
  • the liquid transfer from the main housing 20 into the applicator housing 30 takes place through the opening 68b in the main housing 20.
  • the applicator housing 30 is attached with already inserted discharge valve body 70a and likewise already inserted but still unstressed discharge valve spring 70b.
  • the assembly movement, which ends when the applicator housing 30 engages on the main housing 20, also causes the desired pretensioning of the discharge valve spring 70b.
  • FIGS. 7 to 9 show a second embodiment of a discharge device according to the invention.
  • This second discharge device 10 corresponds to the first embodiment of FIGS. 1 to 6 with respect to most features. Deviating from this, however, no discharge valve 70 is provided.
  • the outlet channel 168 to the discharge port 132 is therefore always open.
  • the inlet valve 162 and the outlet valve 166 on the pumping chamber 164 are the only valves in the system 7, the valve body sections 184 and 186 of these two valves 162, 166 are in turn part of a common one-piece valve body component 180. Unlike in the embodiment of FIGS. 1 to 6, however, this is made of a uniform plastic ,
  • the valve body member 180 therefore has the same material characteristics both at the valve body portions 184, 186 and at the attachment portion 182.
  • Fig. 9 shows a particularly preferred type of use, in which the liquid storage of the discharge device 1 10 is formed as a tube 150 '.
  • the elastic walls of such a tube mean that a force application in the direction of the main axis of extension 4 for the purpose of actuation and the discharge process is not considered ideal. It is therefore particularly in the use of such a tube 150 'as a liquid storage advantageous if the actuating handle is designed for actuation in an actuating direction 2a, which is orthogonal to the main axis of extension 4.
  • FIGS. 10 and 11 in turn largely corresponds to the prescribed embodiments. Similar to the embodiment of FIGS. 7 to 9, the discharge opening 232 of this discharge device 210 can not be closed by a discharge valve and the discharge channel 268 is therefore always open.
  • Deviations from the preceding embodiments also result in the design of the pumping chamber-side ends of the inlet channel 262 and the outlet channel 268.
  • the end 260a of the inlet channel 260 is configured in a ring shape and on the outside of the centric end 268a of FIG Outlet channel 268 provided. The liquid thus flows in the outside into the pumping chamber 264 and leaves it inside.
  • the valve body 280 is adapted accordingly. This - -
  • Valve body 280 has a fixing area 282 similar to the previous valve bodies 80, 180. From this, the valve body portion 284 extends outwardly in the shape of a cone, and due to the fact that this valve body portion 284 is associated with the inlet channel 260, the taper is formed opposite to the taper of the valve body portions 86, 186 of the previous embodiments. From the locating portion 282 inwardly, a perforated bridge portion 288 extends inwardly. From this bridge section 280, a conical-section-shaped valve body section 286, which extends downwardly in relation to FIG. 10, and which is assigned to the outlet channel 268, descends. As can be seen in FIG. 10, the sealing lips closing off the valve body section 268 abut against the inside of the intermediate wall 224b in the closed state.
  • the valve body member 280 is also made in this case as a one-piece plastic part of two plastics of different elasticity.
  • the valve body portion 286 therefore has a smoother ductility than the remainder of the valve body 280 molded onto it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

L'invention concerne principalement un dispositif distributeur (10) pour des liquides, comprenant une chambre de pompe (64) qui est délimitée par deux soupapes (62, 66) présentant respectivement une section corps de soupape et un siège de soupape. Les canaux (60, 80) correspondants sont disposés de manière concentriques, et une zone de fixation du corps de soupape (80) d'une ou des deux soupapes est fixée à une cloison (24b) située entre les canaux.
EP11782625.5A 2010-12-20 2011-11-16 Distributeur pour un liquide Active EP2654967B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063587.1A DE102010063587B4 (de) 2010-12-20 2010-12-20 Austragvorrichtung für eine Flüssigkeit
PCT/EP2011/070291 WO2012084354A2 (fr) 2010-12-20 2011-11-16 Dispositif distributeur pour liquide

Publications (2)

Publication Number Publication Date
EP2654967A2 true EP2654967A2 (fr) 2013-10-30
EP2654967B1 EP2654967B1 (fr) 2016-12-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11782625.5A Active EP2654967B1 (fr) 2010-12-20 2011-11-16 Distributeur pour un liquide

Country Status (4)

Country Link
US (1) US9073080B2 (fr)
EP (1) EP2654967B1 (fr)
DE (1) DE102010063587B4 (fr)
WO (1) WO2012084354A2 (fr)

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DE102013202531B3 (de) * 2013-02-16 2014-05-28 Aptar Radolfzell Gmbh Spender zum Austrag von Flüssigkeiten
DE102016207722A1 (de) * 2016-05-04 2017-11-30 Aptar Radolfzell Gmbh Flüssigkeitsspender
DE102016014898A1 (de) 2016-12-12 2018-06-14 Aptar Dortmund Gmbh Pumpe und Abgabevorrichtung
EP4039374B1 (fr) * 2019-04-26 2024-10-23 Aptar Radolfzell GmbH Distributeur pour distribuer des liquides pharmaceutiques
EP3730220B1 (fr) * 2019-04-26 2022-07-06 Aptar Radolfzell GmbH Distributeur destiné à la sortie des liquides pharmaceutiques

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Also Published As

Publication number Publication date
US9073080B2 (en) 2015-07-07
DE102010063587B4 (de) 2018-03-15
WO2012084354A2 (fr) 2012-06-28
DE102010063587A1 (de) 2012-06-21
EP2654967B1 (fr) 2016-12-28
US20130306683A1 (en) 2013-11-21
WO2012084354A3 (fr) 2012-08-16

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