EP3900842A1 - Vorrichtung zur abgabe von flüssigen substanzen - Google Patents

Vorrichtung zur abgabe von flüssigen substanzen Download PDF

Info

Publication number
EP3900842A1
EP3900842A1 EP21169100.1A EP21169100A EP3900842A1 EP 3900842 A1 EP3900842 A1 EP 3900842A1 EP 21169100 A EP21169100 A EP 21169100A EP 3900842 A1 EP3900842 A1 EP 3900842A1
Authority
EP
European Patent Office
Prior art keywords
button
stem
cup
spring
plug
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
EP21169100.1A
Other languages
English (en)
French (fr)
Other versions
EP3900842B1 (de
Inventor
Giancarlo FONTANARI
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.)
Coster Technologie Speciali SpA
Original Assignee
Coster Technologie Speciali SpA
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 Coster Technologie Speciali SpA filed Critical Coster Technologie Speciali SpA
Publication of EP3900842A1 publication Critical patent/EP3900842A1/de
Application granted granted Critical
Publication of EP3900842B1 publication Critical patent/EP3900842B1/de
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
    • B05B11/01—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
    • B05B11/105—Sealing arrangements around pump actuating stem
    • 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
    • B05B11/0037—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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • 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

Definitions

  • the present invention relates to a device for dispensing a fluid substance.
  • a device for dispensing a fluid substance such as soap, deodorant, cream, etc.
  • a fluid substance such as soap, deodorant, cream, etc.
  • Known dispensing devices are formed of multiple parts made of different materials, which are difficult to recycle.
  • the object of the present invention is to overcome the drawbacks of the commonly known technique.
  • a further object of the invention is to provide a dispensing device which is more effectively recyclable than the conventional ones.
  • reference number 1 is used to denote, as a whole, a fluid substance dispensing device.
  • fluid substance' refers to any - preferably liquid - substance that can be used for personal or home care, such as liquid soap, shampoo, disinfectant, perfume, cream, paste etc.
  • the fluid substance dispensing device 1 comprises (see Figure 3 ) a cup-shaped body 2 inside which a piston 3 can move between a lower stroke limit position and an upper stroke limit position, sliding in a sealed manner over the cup-shaped body 2, operated by means of a hollow stem 4.
  • the cup-shaped body 2 features a supply passage 7 to a compression chamber 9 which may be at least partially defined by the cup-shaped body 2 and the piston 3.
  • the supply passage 7 is coupled with a first valve element 6, which may be, for example, a ball 34 (preferably made of plastic) or other suitable valve means.
  • the ball 34 may be conventionally inserted into a compartment 35 which limits movement thereof in the axial direction, by means of stops 36, for example.
  • the supply passage 7 may be in fluid passage communication with a suction tube 32.
  • the piston 3 may be of the type featuring a double sealing lip.
  • It may also be fitted onto the rod 4 in a slidable manner, so that travel of the piston 3 is limited with respect to the rod 4 (for example by a pair of abutments made on the said rod) .
  • the piston 3 may be fitted at a free end of the rod 4, where there is a discharge passage 10 in communication with a cavity 4A in the said rod.
  • the rod/piston coupling near the discharge passage 10 may form a second valve element 8 at the outlet of the said compression chamber 9.
  • the hollow stem 4 is fastened to a dispensing button 11, which comes into contact with one end of a return spring 5.
  • the spring 5 is arranged in such a way as to return the rod 4 (and therefore the piston 3) to the upper stroke limit position.
  • the cup-shaped body 2 may be fastened to an intermediate element 30, 31 which comes into contact with a second end of the spring 5.
  • the intermediate element may be formed of two pieces, and specifically by a closure element 30 on the cup-shaped body 2 which is fastened to an at least partial spring 5 containment element 31.
  • the closure element 30 may be a substantially discoidal element which is snap-fastened to the cup-shaped body 2.
  • the closure element 30 therefore features an axial passage 30A for the stem 4.
  • the passage 30A is not sealedly coupled with the stem 4, but features channels to allow the passage of air inside a bottle to which the device is coupled.
  • the piston 3 When the piston 3 is in the upper stroke limit position ( Fig.3 ), the latter may come into sealed contact with the closure element 30 at T. When the piston 3 is away from the upper stroke limit position, the air passage between the stem 4 and the closure element 30 may be in communication with a venting hole 37 which allows access to the bottle. In this way, no vacuum is created inside the bottle during pump operation.
  • the closure element 30 may comprise a tubular member 30B equipped with at least one protuberance 30C which allows a snap-coupling with an axial hole on the bottom of the containment element 31, which may also have a cup-shaped configuration.
  • the containment element 31 may feature a flange 31A and snap-fitted elements 31B which enable coupling with a (possibly threaded) ring nut 38 on the device 1 to a container (not shown but of a conventional kind).
  • the coupling may be made tight by means of an annular seal 39 featured at the flange 31A, which comes into contact with a free end of the mouth of the bottle.
  • the button 11 is fastened to the stem 4 by means of a pin 12 (or plug) which can be removed (at least from the stem 3) so that the button 11 can be uncoupled from the stem 4 by simply pulling (obviously, when the pin 12 is uncoupled from the stem 4).
  • the spring 5 (which is normally made of metal) may be extracted from the device 1, or rather from the containment element 31, and then recycled appropriately and separately from the rest of the device 1.
  • the entire device 1 (with the exception of the spring 5) is made of plastic, or in any case of materials that can be easily separated to allow recycling.
  • the spring 5 can be fitted around the stem 4, which can protrude heightwise with respect to a free edge of the containment element 31.
  • the pin 12 can extend from a handle 20, which may also be configured so as to be integrated into the said button 11 in terms of the design. In other words, when the pin 12 is in a first operating position ( Fig.3 ), the handle 20 may be part of the button 11.
  • the pin 12 may have a free curved end, copying the perimeter profile of the stem 4, which facilitates the uncoupling of the button 11 when the pin is in the second operating position, i.e. retracted ( Fig.3A ).
  • the pin 12 may be coupled (for example, by means of the handle 20) to constraining means 15A, 15B, 16A, 16B, and 19 for securing to the button 11, the said means being configured to make the said pin movable between a first position ( Fig.3 ), in which it mutually constrains the button and the stem, and a second position ( Fig.3A ) in which the pin is uncoupled from at least the said stem 4 while remaining connected to (and not separable from) the button 11.
  • the button 11 can be detached from the stem, thereby also allowing the user to access to the spring 5, but the plug remains connected to the button 11.
  • the constraining means comprise at least one elongated element 15A, 15B, which is engaged, in an undercut arrangement and in a shiftable manner, in an appropriate seat 16A, 16B in the button.
  • the appropriate seat 16A, 16B may be obtained in correspondence with a skirt 11A, which extends from the button 11 and surrounds the spring 5 (hiding it from view).
  • the skirt 11A may be configured in such a way as to retract (in an almost telescopic manner) into the containment element 31 at least when the piston 3 is in a lower stroke limit position.
  • the skirt 11A is preferably configured (i.e. the height thereof is such) that it retracts slightly into the containment element 31 (thus hiding the spring 5) even when the piston 3 is in an upper stroke limit position.
  • the at least one elongated element 15A, 15B extending from the said handle 20 comprises a hooked end 21A, 21B which engages with an edge of the said appropriate seat 16A, 16B so as to prevent the pin 12 (or handle) completely uncoupling from the button 11.
  • the handle 20 always remains coupled with the button 11, both when the pin 12 is securing the button and the stem, and when the pin 12 is in a retracted position and the button is released from the stem 4.
  • the pin 12 may be housed in a first seat 13 in the dispensing button 11 and in a second seat 14 in the stem, when it is in the first operating position.
  • the pin is only coupled to the first seat 13 when it is in the second position (see Figure 3A ).
  • the second seat 14 in the stem may be configured so as to house the free end of the pin 12 in a slightly forced manner, so that the handle 20 is firmly coupled with the button 11 during normal button use.
  • the second seat may have walls which are tapered towards a central axis of the stem.
  • the second seat 14 and at least the free end of the pin 12 may be configured so that the pin 12 fits into the seat 14 in a sealed manner.
  • the stem 4 may also be sealedly coupled to the button 11.
  • the first seat 13 and the second seat 14 may be configured to couple with the pin 12 so as to prevent both an axial translation of the button 11 with respect to the stem, but also so as to provide a torsional coupling between the elements (obviously, when the pin is inserted into the first and second seats).
  • the spring 5 features a slight precompression when in the use configuration. Therefore, extraction of the pin 12 could cause a violent detachment of the button 11, which could spring out.
  • These means may feature, for example, an undercut coupling which is released by slightly rotating the button 11 with respect to the containment element 31.
  • these means may feature a pair of rings (or protrusions) in an undercut arrangement (one inside the button 11 and one on the outside of the stem 4) to limit how much the button slides over the stem, through a mutual constraint.
  • a slightly forced coupling may be featured (for example between the stem 4 and the button 11 or between the containment element 31 and the button 11), so that the forcing of the said coupling, when the pin 12 is extracted, prevents or minimises the effects of an unexpected uncoupling of the button 11 and the stem 4 as a result of the precompression thrust of the spring 5.
  • FIGS 4 and 5 show possible variants of the button 11.
  • the same reference numbers used earlier are used to denote parts that are functionally similar to those already illustrated. They will not, therefore, be described again.
  • the pin 12 is coupled with the button by means of a hinge 19.
  • the button and the plug 12 are made from a single moulded piece, advantageously by plastic injection moulding.
  • the hinging 19 may be made by having a part which is thinner and therefore made flexible.
  • the pin 12 may have a curved configuration, which facilitates the extraction thereof when it is necessary to uncouple the button 11 and the stem 4, in order to be able to remove the spring 5.
  • the pin 12 may have a tapered configuration (for example, a truncated cone) in order to facilitate mutual centring of the first seat 13 and the second seat 14, when the pin is inserted therewithin.
  • a tapered configuration for example, a truncated cone
  • the tapered shape is particularly useful in the event that the pin features a curved longitudinal axis and in the presence of the hinging 19. This configuration facilitates centring during the movement of the pin 12 as it 'rotates' around the axis defined by the hinging.
  • the tapered shape of the pin 12 will copy the curved profile thereof, while in the previous configurations the longitudinal axis of the pin may be simply straight, although the external configuration of the pin may be tapered.
  • the button 11 may be equipped (before being installed on the stem 4) with the pin 12 in a partial pre-insertion position in the seat 13 in the button, so as to contain the overall dimensions (in plan) and reduce the chances of entanglement.
  • This configuration also allows for smoother handling before mounting the button on the device.

Landscapes

  • Closures For Containers (AREA)
  • Nozzles (AREA)
EP21169100.1A 2020-04-21 2021-04-19 Vorrichtung zur abgabe von flüssigen substanzen Active EP3900842B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000008452A IT202000008452A1 (it) 2020-04-21 2020-04-21 Dispositivo di erogazione di una sostanza fluida

Publications (2)

Publication Number Publication Date
EP3900842A1 true EP3900842A1 (de) 2021-10-27
EP3900842B1 EP3900842B1 (de) 2023-01-11

Family

ID=71452634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21169100.1A Active EP3900842B1 (de) 2020-04-21 2021-04-19 Vorrichtung zur abgabe von flüssigen substanzen

Country Status (2)

Country Link
EP (1) EP3900842B1 (de)
IT (1) IT202000008452A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113199A1 (en) * 2009-04-02 2010-10-07 Emsar S.P.A. Dispenser
WO2015011593A2 (en) * 2013-07-25 2015-01-29 Meadwestvaco Calmar S.R.L. Facilitated manually operated pump for dispensing fluid substances

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113199A1 (en) * 2009-04-02 2010-10-07 Emsar S.P.A. Dispenser
WO2015011593A2 (en) * 2013-07-25 2015-01-29 Meadwestvaco Calmar S.R.L. Facilitated manually operated pump for dispensing fluid substances

Also Published As

Publication number Publication date
EP3900842B1 (de) 2023-01-11
IT202000008452A1 (it) 2021-10-21

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