EP3736049A1 - Tête distributrice et distributeur de liquide comprenant une tête distributrice - Google Patents

Tête distributrice et distributeur de liquide comprenant une tête distributrice Download PDF

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Publication number
EP3736049A1
EP3736049A1 EP19172799.9A EP19172799A EP3736049A1 EP 3736049 A1 EP3736049 A1 EP 3736049A1 EP 19172799 A EP19172799 A EP 19172799A EP 3736049 A1 EP3736049 A1 EP 3736049A1
Authority
EP
European Patent Office
Prior art keywords
valve
discharge head
base
circumferential
pump chamber
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
EP19172799.9A
Other languages
German (de)
English (en)
Other versions
EP3736049B1 (fr
Inventor
Thomas Bruder
Tobias Baumann
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
Priority to EP19172799.9A priority patent/EP3736049B1/fr
Priority to KR1020217039950A priority patent/KR102917031B1/ko
Priority to CN202080033938.7A priority patent/CN113747978B/zh
Priority to US17/606,259 priority patent/US11938495B2/en
Priority to PCT/EP2020/062342 priority patent/WO2020225223A1/fr
Publication of EP3736049A1 publication Critical patent/EP3736049A1/fr
Application granted granted Critical
Publication of EP3736049B1 publication Critical patent/EP3736049B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers 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
    • B05B11/00442Containers 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
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1028Pumps having a pumping chamber with a deformable wall
    • B05B11/1033Pumps having a pumping chamber with a deformable wall the deformable wall, the inlet and outlet valve elements being integrally formed, e.g. moulded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1028Pumps having a pumping chamber with a deformable wall
    • B05B11/1035Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1043Sealing or attachment arrangements between pump and container
    • B05B11/1046Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047Sealing 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1066Pump inlet valves
    • B05B11/1067Pump inlet valves actuated by pressure
    • B05B11/1069Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1043Sealing or attachment arrangements between pump and container
    • B05B11/1046Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container

Definitions

  • the invention relates to a discharge head for a liquid dispenser for discharging 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 pusher, so that its internal volume in interaction with an inlet valve and an outlet valve forms a pumping chamber, the content of which can be discharged by depressing the actuating pusher.
  • generic discharge heads can consist of only three components, since the inlet and outlet valves and any ventilation valve that may be present can be formed by valve lips or valve bodies provided in one piece on the pump chamber component together with a counter wall of the base or the actuating lever.
  • the object of the invention is to develop a generic discharge head in such a way that it exhibits an advantageous behavior when venting the pumping chamber during commissioning and for venting the liquid reservoir during use.
  • a discharge head which has a base and an actuating lever which can be depressed in an actuating direction between an unactuated end position and an actuated end position relative to the base. 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 pump 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 fastened to the base and to the actuating lever and which 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 which penetrates the base and to which a ventilation valve is assigned.
  • 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 ventilation valve has a circumferential ring web on the base, which rises above a surrounding, radially extending cover wall of the base and the inside of which forms a circumferential valve surface for contacting a valve lip.
  • Said circumferential valve surface is provided on the base, which is inherently or through the coupling to a fluid reservoir placed in a state of tension which can act on the valve surface and allows the shape of the valve surface to be reproduced.
  • the cover wall is preferably at least 50% thicker than in the opposite inner and outer area of the cover wall.
  • the reinforcement structure is preferably arranged opposite a region of an underside of the top wall on which, after the fluid reservoir has been coupled, a reservoir nozzle or bottle neck of the liquid reservoir is in contact.
  • 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 voltage coupled into the base from the storage nozzle or bottle neck and thus prevent it from reaching the ring web and the valve lip there, or only to a small extent.
  • the second measure which is preferably provided together with the reinforcement structure mentioned, is that the circumferential ring web is part of a sleeve-shaped structure which forms the circumferential ring web above the top wall and which extends in alignment over the adjacent top wall below its planes and there forms a circumferential wall section aligned with the annular web.
  • the top wall therefore merges on the inside into a sleeve shape which forms the annular web with the valve surface above the plane of the top wall and forms the circumferential wall section below the top wall.
  • This preferably merges into a circumferential annular wall, which is pierced by at least one ventilation opening.
  • the circumferential wall section can in particular also facilitate the coupling with the liquid reservoir and serve as a guide.
  • the wall section preferably protrudes into the bottle neck or storage connector of the liquid reservoir.
  • the said sleeve-shaped structure brings about a significant stabilization of the position of the valve surface.
  • the reinforcement structure mentioned it is achieved that even a very strong state of tension in the outer area of the base, for example due to the discharge head being screwed on 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 mentioned elements of the base and the depressible actuating lever as well as the liquid inlet, the discharge opening and the deformable pumping chamber component with inlet valve and outlet valve that is open on both sides 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 web on 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 rests circumferentially on the valve surface when the ventilation valve is closed.
  • the base has an inlet connector which forms the liquid inlet and onto which a fastening section of the pump chamber component is pushed.
  • This inlet connector for its part has a support structure with at least one outwardly facing and non-circumferential support surface, which comes into physical contact with the pump chamber component at least towards the end of the depression of the actuating lever and thereby causes a contact force with which the valve lip rests against the valve surface, circumferentially is not uniform.
  • the inlet connector 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 application of force to the valve lip all around. It has been shown that such a uniform application of force on the one hand makes opening 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 valve lip root on the pump chamber component with the actuation direction Includes angles between 30 ° and 60 ° and thus has a high inherent rigidity. On the other hand, the circumferential uniformity of the application of force can cause fluttering on the sealing lip and thus undesired noise development.
  • the non-uniformity caused by the support structure prevents this, since it leads to an area of the valve lip with an increased tendency to open. A reproducible opening without generating any noise can hereby be achieved.
  • 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. The areas of increased inclination to open are to be found between these support surfaces.
  • the support structure can have a rib or a plurality of ribs, the end faces of which facing in the direction of the actuating lever form the support faces.
  • These ribs can simultaneously effect a partial stiffening of the base, which counteracts the aforementioned 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 includes the mentioned elements of the base and the depressible actuating lever as well as the liquid inlet, the discharge opening and the deformable pumping chamber component with inlet valve and outlet valve that is open on both sides having formed pumping device.
  • Said outlet valve has a circumferential annular web which protrudes from an inside end wall of the actuating lever in the direction of the base, the outside of which forms a circumferential valve surface.
  • the discharge head has an additional displacement structure projecting down from the inside end face of the actuating pusher, this displacement structure having a receiving space which is open in the direction of the pump chamber and which is laterally closed by a surrounding wall.
  • the displacement structure is separated from the annular web, preferably by a circumferential recess.
  • the displacer structure reduces the pumping chamber volume, and especially when using a bellows as the main shape of the pumping chamber component, this reduction does not affect the usable pumping chamber volume, i.e. the amount of liquid that can be discharged with one actuation stroke, but only the unusable remaining volume of the pumping chamber.
  • the displacement structure provides an area for receiving residual air through the receiving space it forms. In this the air, which is difficult to expel, collects in the pump chamber, which ensures that it does not reach the outlet valve, or only to a lesser extent, and interferes with its function.
  • the surrounding wall of the displacement structure preferably extends into the pumping chamber, projecting beyond the ring web. While the annular 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 pumping chamber has a maximum volume V PMax , which is defined by the interior of the pumping chamber between the inlet valve and the outlet valve when the actuating pusher is arranged in the unactuated end position.
  • the receiving space has a receiving space volume VA which is formed by that partial volume of the pumping chamber that 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 mentioned elements of the base and the depressible actuating lever as well as the liquid inlet, the discharge opening and the deformable pumping chamber component with inlet valve and outlet valve that is open on both sides having formed pumping device. It is provided that the discharge head has at least one ventilation opening which penetrates the base and to which a ventilation valve is assigned, which has a circumferential valve lip which is integrally formed on the deformable pump chamber component and which is pretensioned outward on a circumferential valve web of the base is 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 protrudes over 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 designed as a conical valve lip with a shape that widens towards the contact surface, the valve lip is particularly at risk. It has been shown that sometimes hardly visible damage due to direct injury and relaxation in the deformed state can significantly unexpectedly influence the reproducibility of the behavior of the valve lip when the discharge head is used.
  • 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 when lying down or when it is upright.
  • the valve lip is preferably set back with respect to the protective lip in such a way that a structurally identical pump chamber component cannot or hardly come into contact with the valve lip.
  • a discharge head which, in accordance with the designs described, has the mentioned elements of the base and the depressible actuating lever as well as the liquid inlet, the discharge opening and the pumping device formed by a deformable pumping chamber component open on both sides with an inlet valve and an outlet valve.
  • the discharge head has at least one ventilation opening which penetrates the base and to which a ventilation valve is assigned.
  • This has a circumferential valve lip which is formed in one piece on the deformable pump chamber component and which bears outwardly against a circumferential valve web of the base.
  • a tilting leg projecting radially beyond the circumferential valve lip is provided, which is integrally formed on the pumping chamber component.
  • a button pointing in the direction of the tilting arm is provided on the actuating lever, which, in the actuated end position, applies force to the tilting arm and thereby lifts the valve lip of the ventilation valve from the valve web or facilitates a pressure-related lift-off of the valve lip from the valve web.
  • Ventilation can be forced or at least promoted in such a way that even a slight negative pressure in the bottle is sufficient to open the ventilation valve when the actuating lever is depressed.
  • Said tilting limb 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 integrally connected to the pump chamber component, is acted upon by force when the tilting leg is pressed down by the actuating lever.
  • Said forced opening or simplified opening allows the ventilation valve to be designed in such a way that it only opens forcibly 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 depressed, i.e. before the return stroke and the aspiration of liquid in the pump chamber, a slight negative pressure can arise in the liquid reservoir after the return stroke, which, however, will be equalized at least for a short time when the next actuation takes place.
  • 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 a ventilated liquid reservoir formed by rigid walls, which is ventilated through the said ventilation opening in the discharge head so that the inflowing air comes into direct contact with the liquid.
  • a ventilated liquid reservoir formed by rigid walls, which is ventilated through the said ventilation opening in the discharge head so that the inflowing air comes into direct contact with the liquid.
  • Such 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. With such a bag system, depending on the design, a riser pipe can be dispensed with.
  • 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.
  • Fig. 1 shows a 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 discharge head 10, which is fastened to a bottle neck or storage connector of the liquid reservoir 110 by means of a thread or some other connection technology.
  • the discharge head 10 has a base 20 as well as an actuating lever 50 which can be depressed relative 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 activated, which pumps liquid from the liquid reservoir 110 to the discharge opening 52.
  • Fig. 2 the discharge head 10 is shown in more detail. Referring to this Fig. 2 as well as the exploded view of the Fig. 3 the elements are explained in detail.
  • the main elements of the discharge head 10 are the already mentioned base 20, the actuating pusher 50 and a pump chamber component 80, which is provided for attachment to both the base 20 and the actuating pusher 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 fastened in a clamped manner by means of a sleeve-shaped fastening section 82 on a clamping surface 40 of an inlet connector 32 of the base 20, this being Inlet stub 32 is penetrated by a liquid inlet 22.
  • the pump chamber component 80 is fastened with a fastening flange 84 on the actuating lever 50, this attachment being carried out on the inside of a circumferential fastening web 68 of the actuating lever 50.
  • the pump chamber component 80 forms a total of three valves.
  • An inlet valve 14 is provided at the upper end of the inlet 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 there is negative pressure in the pump chamber 13.
  • the pump chamber component 80 has a valve lip 86, which on the outside rests against an annular web 72 of the actuating lever 50. 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 web 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 contact with 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 space 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 less 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.
  • the discharge of liquid takes place in that the actuating pusher 50 is depressed 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 outward through the discharge opening 52 after the outlet valve 16 is opened. If the actuating pusher 50 is then released, it returns to its starting position while the previously elastically tensioned pump chamber component 80 is deformed Fig. 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 into the pump chamber 13. This opens when there is negative pressure in the liquid reservoir 110, in that the contact surface 94 on the side of the valve lip 90 opposite the valve lip root 92 lifts off the valve surface 44 and thus allows ambient air to flow in.
  • Fig. 4 shows a sectional view of the base 20 in a separate view.
  • 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 cover wall 24 of the base 20 spanning the bottle neck of the liquid reservoir 110 will be placed under tension in a manner that worsens the opening properties of the ventilation valve 18, in particular the contact pressure of the Contact surface 94 of valve lip 90 on valve surface 44 lowers in such a way that ventilation valve 18 remains permanently open and loss of fluid is to be feared here, or the contact pressure is increased in such a way that ventilation valve 18 does not open reliably, so that a negative pressure can build up in fluid reservoir 110 .
  • the base of the discharge head has two measures to prevent such a stress state.
  • a reinforcement structure 26 in the form of a circumferential web is provided on the upper side of the cover wall 24. This is located in the radial direction above that surface against which an uppermost edge of the bottle neck is pressed when the base 20 is screwed onto the bottle neck. It has been shown that such a reinforcement causes a decoupling, so that the stress state that is created can only reach a small extent as far as the valve web 42 and can therefore only deform it to a small extent.
  • the second measure is that the circumferential valve web 42 continues below the plane of the top wall 24 and here forms a circumferential wall section 46 that is aligned with it.
  • valve web 42 and the wall section 46 together form a sleeve shape. This also counteracts the deformation of the valve web 42. Even if the base 20 is improperly screwed onto the bottle neck of the liquid reservoir 110, the behavior of the vent valve 18 hardly changes.
  • FIGS. 5 and 6A 6B and 6B illustrate a further 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 undergo a deformation 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 is at least partially detached from the valve surface 44 of the valve web 42.
  • a support structure 36 with ribs 39 is provided on the outside of the inlet connection 32, which form support surfaces 38 on their upper side.
  • These support surfaces 38 favor the valve opening, since deformation of the valve lip 90 is made more difficult in the area of the support surfaces 38, so that at the same time the deformation of the valve lip 90 is favored in the circumferential regions between two ribs 39 with support surfaces 38 and here at least compared to that caused by the support surfaces 38 supported areas is facilitated.
  • FIG. 6A 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 valve surface 44 on the outside and has a rotationally symmetrical shape.
  • Fig. 7 shows the actuating lever 50 in a separate illustration and with a perspective from below into the actuating lever 50.
  • the outer fastening web 68 can be seen, on the inner side of which the fastening flange 84 of the pump chamber component 80 is fixed.
  • annular web 72 is provided, the outer surface of which forms the valve surface 74 on which the valve lip 86 of the outlet valve 16 rests in the idle state.
  • a displacement structure 60 is provided on the end wall 56 of the actuating lever 50. This displacement structure 60 serves, on the one hand, to reduce the pumping chamber volume. On the other hand, with its receiving space 64, which is surrounded by a circumferential wall 62, it forms a receiving area for residual air in the pump chamber 13. It has been shown that in practice it is difficult to completely displace the air from the pump chamber 13 .
  • the displacement structure 60 ensures that a considerable part of this amount of air reaches the receiving space 64 and remains there permanently. This prevents this amount of air from negatively affecting the reproducible opening and closing of the outlet valve 16.
  • the named wall 62 of the displacement structure 60 extends into the bellows region 81 of the pump chamber component 80 and in the process projects beyond the annular web 72.
  • FIG Fig. 9 show the pump chamber component in an isolated representation, with FIG Fig. 9 the pump chamber component is shown in section, while it is shown in FIG Fig. 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, that is to say a large number of such pump chamber components 80 are handled, for example transported and supplied, without a defined alignment with one another.
  • common storage and common transport in a large bag with a large number of pump chamber components 80 are common.
  • There is a very high risk that an injury 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 both in the radial direction and in the axial direction over the contact surface 94 of the valve lip 90.
  • the contact surface 94 is thus set back relative to the lower end face of the protective lip 96.
  • FIGS 10A and 10B show a second exemplary embodiment of a discharge head 10 according to the invention. This is essentially identical to the exemplary embodiment of the preceding figures, except for the detail mentioned below. The only difference is that the fastening web 68, on the inside of which the upper end of the pump chamber component 80 is fastened, is already in the idle state Figure 10A extends substantially further in the direction of the lower end of the pump chamber component 80.
  • This construction is chosen so that an end face closing off the fastening web 68 at the lower end can act as a button 70 which forcibly opens the ventilation valve 18 when the actuating lever 50 is depressed or at least reduces the contact pressure of the contact surface 94 of the valve lip 90 on 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 lever 50 is shown.
  • the button 70 presses on the outside on 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 caused 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 make this clear.
  • This opening works particularly well if it is in accordance with the previous exemplary embodiment and in particular the one there Fig. 5 the said ribs 39 are provided with their respective support surfaces 38.
  • the ventilation valve 18 is opened as a result. If a negative pressure should still remain in the liquid reservoir 110 from a previous actuation, it is equalized at this moment. It is true that a new negative pressure may arise in the liquid reservoir during the return stroke of the actuating lever 50. However, this is not sufficient to prevent liquid from being sucked into the pump chamber 13 during the return stroke. The next time you press the button, the negative pressure in the fluid reservoir is again equalized.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP19172799.9A 2019-05-06 2019-05-06 Tête distributrice et distributeur de liquide comprenant une tête distributrice Active EP3736049B1 (fr)

Priority Applications (6)

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
KR1020217039950A KR102917031B1 (ko) 2019-05-06 2020-05-04 배출 헤드 및 배출 헤드를 포함하는 액체 분배기
CN202080033938.7A CN113747978B (zh) 2019-05-06 2020-05-04 排出头和具有排出头的液体分配器
US17/606,259 US11938495B2 (en) 2019-05-06 2020-05-04 Discharge head and liquid dispenser comprising a discharge head
PCT/EP2020/062342 WO2020225223A1 (fr) 2019-05-06 2020-05-04 Tête de décharge et distributeur de liquide pourvu d'une tête de décharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19172799.9A EP3736049B1 (fr) 2019-05-06 2019-05-06 Tête distributrice et distributeur de liquide comprenant une tête distributrice

Related Child Applications (1)

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

Publications (2)

Publication Number Publication Date
EP3736049A1 true EP3736049A1 (fr) 2020-11-11
EP3736049B1 EP3736049B1 (fr) 2022-11-09

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

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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

Country Status (5)

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US (1) US11938495B2 (fr)
EP (2) EP3736049B1 (fr)
KR (1) KR102917031B1 (fr)
CN (1) CN113747978B (fr)
WO (1) WO2020225223A1 (fr)

Cited By (1)

* 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

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Publication number Priority date Publication date Assignee Title
FR3107643B1 (fr) * 2020-02-27 2022-01-21 Oreal Machine pour la distribution d’une quantité contrôlée d’une composition cosmétique
USD1047596S1 (en) * 2023-02-22 2024-10-22 Sguai (Shenzhen) Intelligent Technology Co., Ltd. Smart water bottle

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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
EP0394750A2 (fr) * 1989-04-24 1990-10-31 MegaPlast Dosiersysteme GmbH & Co. Pompe de dosage pour bouteilles ou autres récipients
US5014881A (en) * 1987-08-28 1991-05-14 Raimund Andris Metering and spray pump for liquid and low-viscosity substances
US5205441A (en) * 1990-12-21 1993-04-27 Firma Raimund Andris Gmbh & Co. Kg. Suction and/or discharge valve for a metering and spray pump for dispensing liquid, low-viscosity and pasty substances
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
DE69600697T2 (de) * 1995-01-05 1999-02-25 Calmar, Inc., City of Industry, Calif. Faltenbalgpumpen-Spender
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
FR2984768A1 (fr) * 2011-12-22 2013-06-28 Rexam Dispensing Sys Systeme de distribution d'un produit fluide
US20170266680A1 (en) * 2016-03-15 2017-09-21 Op-Hygiene Ip Gmbh Three Piece Pump
EP3427840A1 (fr) 2017-07-13 2019-01-16 Aptar Radolfzell GmbH Distributeur de liquide

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DE3909633A1 (de) * 1989-03-23 1990-10-11 Megaplast Dosiersysteme Dosierpumpe
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.
US8805556B2 (en) 2008-07-03 2014-08-12 Nikon Corporation Damping apparatus and exposure apparatus
KR101061998B1 (ko) * 2008-10-30 2011-09-05 강성준 액체 저장용기의 펌핑장치
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
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
US5014881A (en) * 1987-08-28 1991-05-14 Raimund Andris Metering and spray pump for liquid and low-viscosity substances
DE8713891U1 (de) * 1987-10-16 1989-02-16 Wella Ag, 6100 Darmstadt Handpumpe für eine dosierte Entnahme eines fließfähigen Stoffes aus einem Vorratsbehälter
EP0394750A2 (fr) * 1989-04-24 1990-10-31 MegaPlast Dosiersysteme GmbH & Co. Pompe de dosage pour bouteilles ou autres récipients
US5205441A (en) * 1990-12-21 1993-04-27 Firma Raimund Andris Gmbh & Co. Kg. Suction and/or discharge valve for a metering and spray pump for dispensing liquid, low-viscosity and pasty substances
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
DE69600697T2 (de) * 1995-01-05 1999-02-25 Calmar, Inc., City of Industry, Calif. Faltenbalgpumpen-Spender
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
FR2984768A1 (fr) * 2011-12-22 2013-06-28 Rexam Dispensing Sys Systeme de distribution d'un produit fluide
US20170266680A1 (en) * 2016-03-15 2017-09-21 Op-Hygiene Ip Gmbh Three Piece Pump
EP3427840A1 (fr) 2017-07-13 2019-01-16 Aptar Radolfzell GmbH Distributeur de liquide

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* 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
WO2024018293A1 (fr) * 2022-07-21 2024-01-25 Aptar Italia S.P.A. Distributeur de fluide

Also Published As

Publication number Publication date
EP3736049B1 (fr) 2022-11-09
KR102917031B1 (ko) 2026-01-22
CN113747978B (zh) 2024-02-27
US11938495B2 (en) 2024-03-26
EP4151317B1 (fr) 2025-08-27
WO2020225223A1 (fr) 2020-11-12
US20220250105A1 (en) 2022-08-11
EP4151317A1 (fr) 2023-03-22
KR20220003103A (ko) 2022-01-07
CN113747978A (zh) 2021-12-03

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