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EP4151317A1 - Tête de distribution et distributeur de liquide doté d'une tête de distribution - Google Patents

Tête de distribution et distributeur de liquide doté d'une tête de distribution Download PDF

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Publication number
EP4151317A1
EP4151317A1 EP22205622.8A EP22205622A EP4151317A1 EP 4151317 A1 EP4151317 A1 EP 4151317A1 EP 22205622 A EP22205622 A EP 22205622A EP 4151317 A1 EP4151317 A1 EP 4151317A1
Authority
EP
European Patent Office
Prior art keywords
valve
discharge head
base
liquid
circumferential
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
EP22205622.8A
Other languages
German (de)
English (en)
Other versions
EP4151317B1 (fr
Inventor
Tobias Baumann
Thomas Bruder
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
Priority to EP22205622.8A priority Critical patent/EP4151317B1/fr
Publication of EP4151317A1 publication Critical patent/EP4151317A1/fr
Application granted granted Critical
Publication of EP4151317B1 publication Critical patent/EP4151317B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1033—Pumps having a pumping chamber with a deformable wall the deformable wall, the inlet and outlet valve elements being integrally formed, e.g. moulded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure inside the container
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • 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
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring

Definitions

  • the invention relates to a discharge head for a liquid dispenser for dispensing pharmaceutical or cosmetic liquids and a liquid dispenser which is provided with such a discharge head.
  • Generic discharge heads have a deformable pumping chamber component, which is arranged between a base and an actuating button, so that its internal volume in cooperation with an inlet valve and an outlet valve forms a pumping chamber, the contents of which can be discharged by depressing the actuating button.
  • generic discharge heads can consist of only three components, since the inlet valve and the outlet valve and any ventilation valve that may be present can be formed by valve lips or valve bodies provided integrally on the pump chamber component together with a counter-wall of the base or the actuating pusher.
  • the object of the invention is to further develop a generic discharge head in such a way that it shows advantageous behavior when venting the pump chamber during commissioning and for venting the liquid reservoir when in use.
  • a discharge head which has a base and an actuating pusher which can be depressed relative to the base between an unactuated end position and an actuated end position in an actuating direction. Furthermore, the proposed discharge head has a liquid inlet for connection to a liquid reservoir and a discharge opening for dispensing liquid in an environment.
  • a pumping device is provided for conveying liquid from the liquid reservoir to the discharge opening.
  • This pumping device has a deformable pumping chamber component which is open on both sides and which is fixed to the base and the actuating pusher and surrounds a variable-volume pumping chamber which has an inlet valve in the direction of the liquid reservoir and an outlet valve in the direction of the discharge opening.
  • the discharge head also has at least one ventilation opening that penetrates the base and is associated with a ventilation valve.
  • the ventilation opening and the ventilation valve allow air to flow into the liquid reservoir in order to allow pressure equalization after liquid has been removed.
  • the aeration valve has a peripheral annular ridge which rises above a surrounding, radially extending top wall of the base and the inside of which forms a peripheral valve surface for a valve lip to rest against.
  • Said circumferential valve surface is provided on the base, which is inherently or by being coupled to a fluid reservoir placed in a state of stress which can act on the valve surface and permit the reproducibility of the shaping of the valve surface.
  • a reinforcement structure preferably in the form of a circumferential reinforcement web, on the top wall surrounding the annular web on the outside of the annular web.
  • the top wall is preferably at least 50% thicker than in the opposite inner and outer area of the top wall.
  • the reinforcement structure is preferably arranged opposite an area of an underside of the cover wall, on which a storage connector is connected after the liquid storage device has been coupled or bottleneck of the liquid reservoir.
  • the reinforcement structure is preferably arranged at least partially opposite a clear cross section of the storage nozzle or bottle neck. The reinforcement structure can thus at least partially absorb a stress coupled into the base from the accumulator neck or bottleneck and thus only allow it to reach the annular web and the valve lip there to a small extent or not at all.
  • the second measure which is preferably provided together with the mentioned reinforcement structure, is that the peripheral annular web is part of a sleeve-shaped structure which forms the peripheral annular web above the top wall and which extends flush with the adjacent top wall and below its planes and there forms a circumferential wall section aligned with the ring web.
  • the cover wall thus merges into a sleeve shape, which forms the annular web with the valve surface above the level of the cover wall and forms the circumferential wall section below the cover wall.
  • This preferably transitions into a peripheral ring-shaped wall which is pierced by at least one ventilation opening.
  • the peripheral wall section can in particular also facilitate the coupling to the liquid reservoir and can serve as a guide.
  • the wall section preferably protrudes into the bottle neck or storage nozzle of the liquid reservoir.
  • the sleeve-like structure mentioned brings about a significant stabilization of the position of the valve surface.
  • the mentioned reinforcement structure it is achieved that even a very strong state of stress in the outer area of the base, for example due to screwing on the discharge head too tightly, does not negatively affect the opening properties of the ventilation valve.
  • a discharge head is proposed, in particular a discharge head of the type described above with an improved ventilation valve, which also has the elements mentioned of the base and the depressible actuating pusher as well as the liquid inlet, the discharge opening and the pump chamber component open on both sides with an inlet valve and outlet valve having formed pumping device.
  • the discharge head has at least one ventilation opening which penetrates the base and to which a ventilation valve is assigned.
  • This ventilation valve has a circumferential ring ridge at the base, the inside of which forms a valve surface. It also has a valve lip which is formed in one piece with the pump chamber component and which, when the ventilation valve is closed, bears circumferentially on the valve surface.
  • the latter In order to fasten the pump chamber component to the base, the latter has an inlet connector forming the liquid inlet, onto which a fastening section of the pump chamber component is pushed.
  • this inlet connection has a support structure with at least one outward-facing and non-circumferential support surface, which comes into contact with the pump chamber component at least towards the end of the depression of the actuating pusher and thereby causes a contact pressure force with which the valve lip bears against the valve surface to be circumferential is not uniform.
  • the inlet connection is the carrier of the pump chamber component and thus also of the valve lip of the ventilation valve provided thereon.
  • the support structure provided on the outside of the inlet connection ensures that a negative pressure in the liquid reservoir does not result in a uniform force being applied to the valve lip all around. It has been shown that such a uniform application of force on the one hand makes opening itself more difficult and more difficult to calculate, especially if the valve lip has an expanding shape, with a straight line between a contact surface at the distal end of the valve lip and the root of the valve lip on the pump chamber component being one with the direction of actuation Includes angles between 30 ° and 60 ° and thus has a high inherent rigidity. On the other hand, the all-round uniformity of the application of force can cause the sealing lip to flutter and thus generate unwanted noise.
  • the non-uniformity introduced by the support structure prevents this since it results in an area of the valve lip with an increased tendency to open. A reproducible opening without noise is hereby achievable.
  • the support structure Although it is possible in principle to have the support structure reduce the opening tendency only in a limited peripheral area, it is considered advantageous if the support structure has a plurality of support surfaces, preferably between 2 and 12, in particular between 4 and 8, which are uniform over the circumference are distributed. Between these supporting surfaces are the areas with an increased tendency to open.
  • the support structure can have a rib or a plurality of ribs whose end faces pointing in the direction of the actuating pusher form the support faces. At the same time, these ribs can bring about a partial stiffening of the base, which counteracts the initially mentioned deformation of the valve surface of the ventilation valve.
  • the at least one ventilation opening can preferably be arranged circumferentially between these ribs.
  • a discharge head is proposed, in particular a discharge head of the type described above with an improved ventilation valve, which in turn has the elements mentioned of the base and the depressible actuating pusher as well as the liquid inlet, the discharge opening and the deformable pump chamber component open on both sides with inlet valve and outlet valve having formed pumping device.
  • Said outlet valve has a circumferential annular web which protrudes from an inner end wall of the actuating pusher in the direction of the base and whose outer side forms a circumferential valve surface.
  • the discharge head has an additional displacement structure protruding from the inside end face of the actuating pusher, this displacement structure having a receiving space open in the direction of the pump chamber, which is laterally closed by a surrounding wall.
  • the displacement structure is separated from the ring web, preferably by a peripheral recess.
  • the displacement structure reduces the pumping chamber volume, with the use of a bellows as the main shape of the pumping chamber component in particular, this reduction does not affect the usable pumping chamber volume, i.e. the amount of liquid that can be discharged with one actuating stroke, but only the unusable residual volume of the pumping chamber.
  • the displacement structure provides an area for accommodating residual air through the accommodating space it forms. The air, which is difficult to expel, collects in this in the pump chamber, which ensures that it does not reach the outlet valve or only to a small extent and interferes with its function.
  • the surrounding wall of the displacement structure preferably extends beyond the ring web into the pump chamber. While the ring web itself can only have a limited extent in the direction of the base due to the shape of the pump chamber component, in particular in its configuration as a bellows, the displacement structure can extend further into the pump chamber in the actuation direction.
  • the pump chamber has a maximum volume V PMax , which is defined by the interior of the pump chamber between the inlet valve and the outlet valve when the actuating pushbutton is in the unactuated end position.
  • the receiving space has a receiving space volume VA, which is formed by that partial volume of the pump chamber which is enclosed within the surrounding wall.
  • the ratio between the receiving space volume VA and the pump chamber volume V PMax is preferably between 1:50 and 1:10.
  • a discharge head is proposed, in particular a discharge head of the type described above with an improved ventilation valve, which also has the elements mentioned of the base and the depressible actuating pusher as well as the liquid inlet, the discharge opening and the pump chamber component open on both sides with an inlet valve and outlet valve having formed pumping device. It is provided that the discharge head has at least one ventilation opening which penetrates the base and which is assigned a ventilation valve which has a peripheral valve lip which is integrally formed on the deformable pump chamber component and which is prestressed outwards on a peripheral valve bridge of the base applied.
  • a protective lip is provided which is also formed in one piece on the deformable pump chamber component and is arranged on the outside of the valve lip in order to protect the valve lip.
  • the protective lip projects beyond the valve lip, preferably both radially and axially.
  • the purpose of the protective lip is in particular to protect the valve lip of the ventilation valve during the action prior to assembly as bulk material.
  • the valve lip is particularly at risk. It has been shown that damage that is sometimes barely visible due to direct injury and relaxation in the deformed state can have a clearly unexpected effect on the reproducibility of the behavior of the valve lip when using the discharge head.
  • the protective lip protrudes radially and axially beyond the valve lip, so that the protective lip does not come into contact with a substrate either in the horizontal position or in the upright position.
  • the valve lip is preferably set back in relation to the protective lip in such a way that a pump chamber component of the same construction cannot or hardly come into contact with the valve lip.
  • a discharge head which, in accordance with the configurations described, has the named elements of the base and the depressible actuating pusher as well as the liquid inlet, the discharge opening and the pumping device formed by a deformable pump chamber component open on both sides with an inlet valve and outlet valve.
  • the discharge head has at least one ventilation opening that penetrates the base and is associated with a ventilation valve.
  • This has an encircling valve lip, which is formed in one piece on the deformable pump chamber component and which, prestressed outwards, bears against an encircling valve bridge of the base.
  • a tilting leg which protrudes radially beyond the circumferential valve lip and is integrally formed on the pump chamber component is provided.
  • a button pointing in the direction of the tilting leg is provided on the actuating pushbutton, which in the actuated end position applies force to the tilting leg and thereby lifts the valve lip of the ventilation valve from the valve bridge or facilitates a pressure-related lifting of the valve lip from the valve bridge.
  • Ventilation can be forced when the actuating button is depressed or at least promoted in such a way that even a slight negative pressure in the bottle is sufficient to open the ventilation valve.
  • Said tilting leg which is preferably designed as a circumferential tilting collar, is connected in one piece to the pump chamber component. It is provided on the pump chamber component in such a way that the sealing lip, which is also connected in one piece to the pump chamber component, is subjected to a force when the tilting leg is pressed down by the actuating pusher.
  • Said forced opening or simplified opening allows the ventilation valve to be designed in such a way that it is only forced open in this way or only opens when there is a considerable negative pressure in the bottle.
  • a particularly leak-proof ventilation valve can therefore be created. Since the forced opening takes place when the actuating lever is pressed, i.e. before the return stroke and the suction of liquid in the pump chamber that takes place, a slight negative pressure can develop in the liquid reservoir after the return stroke, but this is at least briefly equalized at the latest with the next actuation.
  • the invention also includes a liquid dispenser for dispensing pharmaceutical or cosmetic liquids, which has a liquid reservoir and a dispensing head for conveying liquid from the liquid reservoir into an environment.
  • the discharge head is designed according to one of the preceding claims.
  • the liquid reservoir is preferably an aerated liquid reservoir formed by rigid walls, which is aerated through the said aeration opening in the discharge head, so that the air flowing in comes into direct contact with the liquid.
  • a design usually has a riser pipe on the discharge head, which protrudes from its base into the liquid reservoir.
  • a design is also conceivable in which a bag, in which the liquid is stored, is provided within the rigid wall of the liquid reservoir. The ventilation does not take place in this bag, but in a surrounding space within the rigid wall of the liquid reservoir.
  • a riser pipe can be dispensed with in such a bag system.
  • the liquid reservoir is filled with a pharmaceutical or cosmetic liquid.
  • a pharmaceutical or cosmetic liquid In particular, it can be a highly viscous liquid in the form of a gel or a foam.
  • the liquid dispenser 100 for dispensing pharmaceutical or cosmetic liquids, for example for dispensing a shower gel.
  • the liquid dispenser 100 has a liquid reservoir 110 and a dispensing head 10 which is attached to a bottle neck or storage nozzle of the liquid reservoir 110 by means of a thread or some other connection technique.
  • the discharge head 10 has a base 20 and an actuating pusher 50 which can be depressed in relation to the base 20 in the direction of an actuating direction 2 .
  • a discharge opening 52 is provided on this.
  • a pump device 12 provided in the discharge head 10 is actuated, which conveys liquid from the liquid reservoir 110 to the discharge opening 52 .
  • the main elements of the discharge head 10 are the already mentioned base 20, the actuating button 50 and a pumping chamber component 80 which is provided for attachment to both the base 20 and the actuating button 50 and which provides a pumping chamber wall in the form of a bellows 81.
  • the pump chamber component 80 made of an elastically deformable plastic is clamped by means of a sleeve-shaped fastening section 82 on a clamping surface 40 of an inlet connection 32 of the base 20, with this Inlet connection 32 is penetrated by a liquid inlet 22 .
  • the pump chamber component 80 is fastened to the actuating button 50 with a fastening flange 84 , this fastening being effected on the inside of a circumferential fastening web 68 of the actuating button 50 .
  • the pumping chamber component 80 forms a total of three valves.
  • An intake valve 14 is provided at the upper end of the intake port 32 .
  • the pump chamber component 80 has an elastically deflectable hemispherical valve body 88 which is pressed against the liquid inlet 22 and opens when the pressure in the pump chamber 13 is negative.
  • the pump chamber component 80 has a valve lip 86 which rests against an annular web 72 of the actuating pusher 50 on the outside. In the event of excess pressure in the pump chamber 13, the valve lip 86 is deflected, in particular in the area of the discharge opening 52, so that liquid can flow to the discharge opening 52 and into a surrounding atmosphere.
  • the third valve which is formed by the pump chamber component 80, is a ventilation valve 18. This is formed on the one hand by a circumferential valve bridge 42 of the base 20 and its inwardly pointing valve surface 44 and on the other hand by a conically widening valve lip 90 of the pump chamber component 80. At the free end, this valve lip has a contact surface 94 for resting against the valve surface 44 .
  • the ventilation valve 18 separates a surrounding atmosphere from an annular space surrounding the inlet connector 32 which is connected to an interior of the liquid reservoir 110 via ventilation openings 28 . If the pressure in the liquid reservoir 110 and thus also in the annular space is lower than an ambient pressure, the ventilation valve 18 opens, in that the valve lip 90 at least partially loses contact with the valve surface 44 .
  • Liquid is discharged by depressing the actuating pusher 50 by applying force to an actuating surface 54 so that the bellows 81 of the pump chamber component 80 is compressed and the liquid contained therein flows out through the discharge opening 52 after the outlet valve 16 has opened. If the actuating pusher 50 is then released, it returns to its starting position, with the previously elastically stressed pump chamber component 80 being deformed back 2 back, meanwhile the outlet valve 16 is closed and instead the inlet valve 14 opens, so that liquid can flow from the liquid reservoir 110 into the pump chamber 13 .
  • the ventilation valve 18 is provided so that no negative pressure arises in the liquid reservoir 110 after liquid has been removed, which would prevent liquid from flowing back into the pump chamber 13 . This opens when the pressure in the liquid reservoir 110 is negative, in that the contact surface 94 on the side of the valve lip 90 opposite the valve lip root 92 is lifted off the valve surface 44 and thus allows ambient air to flow in.
  • FIG. 4 shows a sectional representation of the base 20 in a separate representation.
  • An internal thread 34 is provided on the base 20 by means of which the base is fastened to a thread of the liquid reservoir 110 . If the discharge head 10 is screwed tightly onto the liquid reservoir 110, there is a risk that a top wall 24 of the base 20 spanning the bottleneck of the liquid reservoir 110 will be subjected to tension in a way that impairs the opening properties of the ventilation valve 18, in particular the contact pressure of the contact surface 94 of the valve lip 90 on the valve surface 44 lowers in such a way that the ventilation valve 18 remains permanently open and liquid loss is to be feared here, or increases the contact pressure in such a way that the ventilation valve 18 does not open reliably, so that a negative pressure can build up in the liquid reservoir 110 .
  • the base of the discharge head has two measures to prevent such a stress condition.
  • a reinforcement structure 26 in the form of a circumferential web is provided on the upper side of the top wall 24 . This is radially above that surface against which an uppermost rim of the bottleneck will be pressed when the base 20 is screwed onto the bottleneck. It has been shown that such a reinforcement brings about a decoupling, so that the induced state of stress can only reach the valve bridge 42 to a small extent and can therefore only deform it to a small extent.
  • the second measure is that the circumferential valve bridge 42 continues to below the level of the top wall 24 and here forms a circumferential wall section 46 aligned therewith.
  • valve bridge 42 and the wall section 46 together form a sleeve shape. This also counteracts the deformation of the valve bridge 42 . Even if the base 20 is improperly screwed tightly onto the bottleneck of the liquid reservoir 110, the behavior of the ventilation valve 18 hardly changes.
  • FIGS. 5 and 6A and 6B illustrate another aspect with regard to the ventilation valve 18.
  • the valve lip 90 of the ventilation valve 18 has a conical shape with a widening in the direction of the contact surface 94 of the valve lip 90.
  • this conical shape has the disadvantage that the valve lip 90 has to be deformed for the purpose of opening the ventilation valve 18, in the course of which the contact surface 94 of the valve lip 90 is shortened so that it detaches at least in sections from the valve surface 44 of the valve bridge 42.
  • FIG. 5 A support structure 36 with ribs 39 is provided on the outside of the inlet connection piece 32 as shown, which each form support surfaces 38 on their upper side.
  • valve lip 90 is made more difficult in the area of support surfaces 38, so that at the same time in the circumferential areas between two ribs 39 with support surfaces 38, the deformation of valve lip 90 is promoted and here at least compared to that caused by support surfaces 38 supported areas is facilitated.
  • Figure 6A 12 shows the state of the closed ventilation valve 18.
  • the valve lip 90 is also shown separately here again for better understanding.
  • the contact surface 94 rests against the outside valve surface 44 and has a rotationally symmetrical shape.
  • FIG. 7 shows the actuating button 50 in a separate representation and with a perspective from below into the actuating button 50 .
  • the outer fastening web 68 can be seen, on the inside of which the fastening flange 84 of the pump chamber component 80 is fixed.
  • An annular web 72 is provided within this, the outer surface of which forms the valve surface 74 against which the valve lip 86 of the outlet valve 16 rests in the rest state.
  • a displacement structure 60 on the end wall 56 of the actuating pusher 50 is also provided within this.
  • this displacement structure 60 serves the purpose of reducing the pumping chamber volume.
  • FIGS. 8 and 9 show the pump chamber component in an isolated representation, with in 9 the pumping chamber component is shown in section while in 8 is shown as a whole.
  • valve lip 90 assigned to the inlet valve 14 is protected in a special way against injuries prior to assembly.
  • the pump chamber component 80 is preferably handled as bulk material during assembly, ie a large number of such pump chamber components 80 are handled without a defined alignment with one another, for example transported and supplied.
  • common storage and common transport in a large bag with a large number of pump chamber components 80 are common.
  • damage to the contact surface 94 at the distal end of the valve lip 90 will result in the ventilation valve remaining permanently open during operation.
  • a protective lip 96 is provided, which is also an integral part of the pump chamber component 80 and which extends over the contact surface 94 of the valve lip 90 both in the radial direction and in the axial direction.
  • the contact surface 94 is thus set back in relation to the lower end face of the protective lip 96 .
  • FIGS. 10A and 10B 12 show a second exemplary embodiment of a discharge head 10 according to the invention. This is essentially identical in design to the exemplary embodiment in the preceding figures, with the exception of the detail mentioned below. The only difference is that the fastening web 68, on the inside of which the upper end of the pumping chamber component 80 is fastened, is already at rest Figure 10A substantially further towards the lower end of the pump chamber member 80 extends.
  • This design was chosen so that an end face terminating the fastening web 68 at the lower end can act as a button 70 which, when the actuating pusher 50 is pressed down, forces the ventilation valve 18 to open or at least reduces the contact pressure of the contact surface 94 of the valve lip 90 and the valve surface 44 in such a way that the Opening the ventilation valve 18 can be guaranteed for the purpose of producing the pressure equalization.
  • FIG. 10B shows this effect.
  • the lower end position of the actuating pusher 50 is shown.
  • the button 70 presses on the outside of a tilting collar 98, which is also the carrier of the protective lip 96 described above.
  • the arrows 4 make this clear.
  • the deformation of the tilting collar 98 brought about by this means that the valve lip 90 attached to the inner end of this tilting collar 98 detaches from the valve surface 44 .
  • the arrows 6 illustrate this. This opening works particularly well when consistent with the previous embodiment and in particular that there figure 5 said ribs 39 are provided with their respective support surfaces 38.
  • the ventilation valve 18 is thereby opened. If there is still a negative pressure in the liquid reservoir 110 from a previous actuation, it is equalized at this moment. It is true that during the return stroke of the actuating pusher 50 a renewed negative pressure may arise in the liquid reservoir. However, this is not sufficient to prevent liquid from being sucked into the pump chamber 13 during the return stroke. With the next actuation, the negative pressure in the liquid reservoir is equalized again.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP22205622.8A 2019-05-06 2019-05-06 Tête de distribution et distributeur de liquide doté d'une tête de distribution Active EP4151317B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22205622.8A EP4151317B1 (fr) 2019-05-06 2019-05-06 Tête de distribution et distributeur de liquide doté d'une tête de distribution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22205622.8A EP4151317B1 (fr) 2019-05-06 2019-05-06 Tête de distribution et distributeur de liquide doté d'une tête de distribution
EP19172799.9A EP3736049B1 (fr) 2019-05-06 2019-05-06 Tête distributrice et distributeur de liquide comprenant une tête distributrice

Related Parent Applications (1)

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EP19172799.9A Division EP3736049B1 (fr) 2019-05-06 2019-05-06 Tête distributrice et distributeur de liquide comprenant une tête distributrice

Publications (2)

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EP4151317A1 true EP4151317A1 (fr) 2023-03-22
EP4151317B1 EP4151317B1 (fr) 2025-08-27

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EP22205622.8A Active EP4151317B1 (fr) 2019-05-06 2019-05-06 Tête de distribution et distributeur de liquide doté d'une tête de distribution
EP19172799.9A Active EP3736049B1 (fr) 2019-05-06 2019-05-06 Tête distributrice et distributeur de liquide comprenant une tête distributrice

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EP19172799.9A Active EP3736049B1 (fr) 2019-05-06 2019-05-06 Tête distributrice et distributeur de liquide comprenant une tête distributrice

Country Status (5)

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US (1) US11938495B2 (fr)
EP (2) EP4151317B1 (fr)
KR (1) KR20220003103A (fr)
CN (1) CN113747978B (fr)
WO (1) WO2020225223A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200015306A1 (it) * 2022-07-21 2024-01-21 Aptar Italia S P A Dispenser per l’erogazione di un fluido
USD1047596S1 (en) * 2023-02-22 2024-10-22 Sguai (Shenzhen) Intelligent Technology Co., Ltd. Smart water bottle

Citations (4)

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DE8713891U1 (de) * 1987-10-16 1989-02-16 Wella Ag, 6100 Darmstadt Handpumpe für eine dosierte Entnahme eines fließfähigen Stoffes aus einem Vorratsbehälter
US5518147A (en) * 1994-03-01 1996-05-21 The Procter & Gamble Company Collapsible pump chamber having predetermined collapsing pattern
US5664703A (en) * 1994-02-28 1997-09-09 The Procter & Gamble Company Pump device with collapsible pump chamber having supply container venting system and integral shipping seal
EP3427840A1 (fr) 2017-07-13 2019-01-16 Aptar Radolfzell GmbH Distributeur de liquide

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ZA885235B (en) * 1987-08-28 1989-04-26 Andris Raimund Metering and spray pump
DE3909633A1 (de) * 1989-03-23 1990-10-11 Megaplast Dosiersysteme Dosierpumpe
DE8905137U1 (de) * 1989-04-24 1990-08-23 MegaPlast Dosiersysteme GmbH & Co, 5600 Wuppertal Dosierpumpe für Flaschen o.dgl.
DE4041135C2 (de) * 1990-12-21 1994-10-20 Andris Raimund Gmbh & Co Kg Ansaug- oder Ausgabeventil für eine Dosier- und Spraypumpe zur Abgabe flüssiger, niederviskoser und pastöser Stoffe
US5544789A (en) 1995-01-05 1996-08-13 Calmar Inc. Bellows pump dispenser
FR2915467B1 (fr) 2007-04-24 2009-06-05 Plastohm Division Emballages S Dispositif et distribution d'un produit liquide a pateux par pompe de dosage.
JP2012507452A (ja) * 2008-10-30 2012-03-29 ユン，ソククァン 液体貯蔵容器のポンピング装置
CN201961688U (zh) * 2010-12-31 2011-09-07 深圳市通产丽星股份有限公司 一种真空泵头管
FR2984768B1 (fr) * 2011-12-22 2017-04-14 Rexam Dispensing Sys Systeme de distribution d'un produit fluide
US9038862B2 (en) * 2013-01-23 2015-05-26 Gojo Industries, Inc. Pumps with container vents
DE102014200155A1 (de) 2014-01-08 2015-07-09 Aptar Radolfzell Gmbh Druckbetätigtes Ventil und Flüssigkeitsspender mit einem solchen Ventil
DE102014200867A1 (de) * 2014-01-17 2015-08-06 Aptar Radolfzell Gmbh Spender für Flüssigkeiten
CA2923827C (fr) * 2016-03-15 2023-08-01 Heiner Ophardt Pompe en trois pieces
EP3427839B1 (fr) 2017-07-13 2020-12-02 Aptar Radolfzell GmbH Distributeur de liquide ayant une bouteille ventilée et une tête de distribution associée

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Publication number Priority date Publication date Assignee Title
DE8713891U1 (de) * 1987-10-16 1989-02-16 Wella Ag, 6100 Darmstadt Handpumpe für eine dosierte Entnahme eines fließfähigen Stoffes aus einem Vorratsbehälter
US5664703A (en) * 1994-02-28 1997-09-09 The Procter & Gamble Company Pump device with collapsible pump chamber having supply container venting system and integral shipping seal
US5518147A (en) * 1994-03-01 1996-05-21 The Procter & Gamble Company Collapsible pump chamber having predetermined collapsing pattern
EP3427840A1 (fr) 2017-07-13 2019-01-16 Aptar Radolfzell GmbH Distributeur de liquide

Also Published As

Publication number Publication date
KR20220003103A (ko) 2022-01-07
EP3736049A1 (fr) 2020-11-11
US11938495B2 (en) 2024-03-26
EP4151317B1 (fr) 2025-08-27
CN113747978B (zh) 2024-02-27
CN113747978A (zh) 2021-12-03
WO2020225223A1 (fr) 2020-11-12
EP3736049B1 (fr) 2022-11-09
US20220250105A1 (en) 2022-08-11

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