WO2012013688A1 - Pulvérisateur comportant une soupape incorporée dans le système de pompage - Google Patents

Pulvérisateur comportant une soupape incorporée dans le système de pompage Download PDF

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Publication number
WO2012013688A1
WO2012013688A1 PCT/EP2011/062851 EP2011062851W WO2012013688A1 WO 2012013688 A1 WO2012013688 A1 WO 2012013688A1 EP 2011062851 W EP2011062851 W EP 2011062851W WO 2012013688 A1 WO2012013688 A1 WO 2012013688A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
sprayer
plunger
liquid
valve
Prior art date
Application number
PCT/EP2011/062851
Other languages
English (en)
Inventor
Sario Buti
Original Assignee
Mwv - Vicenza S.P.A.
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 Mwv - Vicenza S.P.A. filed Critical Mwv - Vicenza S.P.A.
Publication of WO2012013688A1 publication Critical patent/WO2012013688A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—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
    • 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
    • B05B11/1077—Springs characterised by a particular shape or material

Definitions

  • the present invention relates to a sprayer device, in particular a pump sprayer actuated manually by means of a trigger lever.
  • a sprayer of this type generally comprises a main body provided with a base with a threaded ring nut to be attached to the mouth of a container of liquid, a delivery nozzle wherefrom the liquid is sprayed, a trigger lever which can be actuated by hand by the user and strained by a spring, and a pump which can be actuated by the trigger lever to suck the liquid from the container and spray it through the delivery nozzle.
  • the pump provides a piston acting in a chamber formed in the body of the sprayer.
  • the body of the sprayer comprises moreover an inlet duct which puts the interior of the fluid container in communication with the chamber of the pump and an outlet duct which puts the chamber of the pump in communication with the nozzle of the sprayer.
  • a valve for fluid suction and delivery is normally provided inside the chamber of the pump, suitable for allowing, in a selective and one-way manner, the suction of the fluid from the container to the chamber of the pump and the delivery of fluid from the chamber of the pump towards the delivery nozzle.
  • Such a type of valve is somewhat delicate and therefore subject to jamming and blocking of the channels of suction and delivery, with the result of making the sprayer unusable.
  • Sprayers with these systems of valves are excessively complex and are made in a large number of components, also of different materials, and not therefore recyclable.
  • US 2001/0030246 Al discloses a hand lever-operated spray pump with a deliveiy valve arranged at the deliveiy nozzle.
  • the actuation of the hand lever causes the buckling of two bridge sections of the pump housing connecting two hinge sections.
  • the object of the present invention is that of eliminating the disadvantages of the prior art, providing a sprayer device with trigger-operated pump which is extremely reliable and suitable for ensuring perfect functioning, avoiding the problems of faults and jamming of the pump valve.
  • Another object of the present invention is that of providing such a sprayer which is made up of a limited number of component parts and is therefore simple and economical to manufacture.
  • Yet another object of the invention is that of providing such a sprayer whose component elements are made in materials compatible with the aims of industrial recycling.
  • the sprayer with trigger lever substantially comprises a body which can be attached to a container of liquids by means of a screw ring nut and is provided with a spraying nozzle placed at the end of a hollow stem holding at the other end a plunger sliding in a pumping chamber formed in the body of the sprayer.
  • the pumping chamber is in communication with the container via a hole provided to the rear of the same, wherein a one-way mushroom suction valve is placed, and in communication with the spraying nozzle via holes formed in the plunger and said hollow stem.
  • the plunger is mounted on the hollow stem in such a way that one of its lips abuts tightly on the inner wall of the stem preventing, in certain conditions, the passage of fluid through the aforesaid holes formed in the plunger, thus acting as delivery valve, In rest conditions the pumping chamber is full of liquid and the suction and delivery valves both closed.
  • Actuating the trigger lever produces the backward movement of the plunger and the compression of the liquid in the pumping chamber, which on the one hand keeps the mushroom suction valve closed and on the other causes the opening of the delivery valve, allowing the outflow of the liquid towards the spraying nozzle through the holes formed in the piston.
  • the plunger moves in an opposite direction, creating a vacuum in the pumping chamber which keeps the delivery valve closed and opens the suction valve, drawing liquid into the chamber.
  • the plastic material used is preferably polypropylene and/or polyethylene, so that the entire sprayer is recyclable and possibly biodegradable.
  • Fig. 1 is a median sectioned view of a sprayer according to the invention, shown during the suction phase;
  • Fig. 2 is a sectioned view of the sprayer in condition of non-use after the suction phase
  • Fig. 3 is a sectioned view of the sprayer in condition of delivery
  • Fig. 4 is a sectioned view, like those of the previous drawings, of only the plunger of the pump of the sprayer;
  • Fig. 5 is a section taken along the plane V-V of Fig. 4.
  • the sprayer according to the invention has been denoted as a whole by reference numeral 10.
  • an attachment ring nut 11 is rotatably mounted which has internal threading suitable for engaging with an external threading of the mouth of a container (not shown) suitable for containing a liquid, such as for example liquids for cleaning the home and the like,
  • the ring nut 11 is mounted on a lower cylindrical protuberance 12 of the sprayer body 14, formed in a single part and also including the external casing.
  • the sprayer 10 comprises a trigger 29 hinged in one of its ends 30 to the body 14 of the sprayer and in one of its intermediate portions 31 to a hollow stem 32 of a plunger 33 sliding horizontally and tightly inside a chamber 20 defined in the body 14 of the sprayer.
  • a delivery nozzle 15 is positioned, whereon a spraying ring nut 16 is mounted, whose actuation, in a manner in itself known, enables or disables the exit of the liquid.
  • a spring 60 is interposed which strains the trigger 29 towards an advanced forward rest position.
  • the spring 60 is a spring of the leaf type having a C configuration and is formed in a single part with the trigger lever 29, and its free end 61 goes to abut against a shoulder 62 formed in the body 14 of the sprayer, to the rear and above the chamber 20 for sliding of the plunger.
  • the chamber 20 has a rear vertical wall 21 (in actual fact in the embodiment shown in the drawings this wall is slightly forward with respect to the base wall of the chamber 20) provided with a hole 34 for entry of the liquid, communicating with a substantially vertical duct 37 formed in the body 14, in which a dipper tube 36 is housed.
  • a button or mushroom 39 is placed, acting as one-way suction valve, as will be explained herein below,
  • the liquid in the chamber 20 is therefore forced to pass through the holes 35 of the plunger 33, and the pressure of the same tends to distance the lip 41 from the inner wall 42 of the hollow piston 32, creating an annular gap through which the liquid enters the hollow stem 32 and moves towards the deliveiy nozzle 15, through the duct 43 formed in the hollow stem as indicated by the arrows in Fig. 3.
  • the hole 44 remains free and allows the entiy of air inside the container so as to recover the exit of the liquid.
  • the plunger 33 covers the hole 44, preventing the exit of liquid through it in the event of overturning of the container.
  • All the aforesaid components are formed in compatible materials, such as polypropylene and polyethylene, therefore completely recyclable without separation of the same and possibly biodegradable.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention porte sur un dispositif pulvérisateur (10) comportant une pompe actionnée par gâchette (29), le dispositif comprenant un corps (14) qui peut être monté sur un récipient de liquide et qui comporte une buse de pulvérisation (15). La buse de pulvérisation (15) est disposée à l'extrémité d'une tige creuse qui porte à son autre extrémité un plongeur (33) qui coulisse dans une chambre de pompage (20), une soupape (39) pour l'aspiration du liquide du récipient et une soupape pour la distribution du liquide en direction de la buse de pulvérisation (15) étant formées dans ledit plongeur (33).
PCT/EP2011/062851 2010-07-30 2011-07-26 Pulvérisateur comportant une soupape incorporée dans le système de pompage WO2012013688A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2010A001448 2010-07-30
ITMI2010A001448A IT1401497B1 (it) 2010-07-30 2010-07-30 Spuzzatore con valvola incorporata nel sistema pompante

Publications (1)

Publication Number Publication Date
WO2012013688A1 true WO2012013688A1 (fr) 2012-02-02

Family

ID=43629279

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/062851 WO2012013688A1 (fr) 2010-07-30 2011-07-26 Pulvérisateur comportant une soupape incorporée dans le système de pompage

Country Status (2)

Country Link
IT (1) IT1401497B1 (fr)
WO (1) WO2012013688A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450026A4 (fr) * 2016-04-25 2019-12-18 Canyon Corporation Pulvérisateur à gâchette
EP4098578A4 (fr) * 2020-09-08 2024-02-14 Majesty Packaging Systems Limited Pompe de pulvérisation de pistolet entièrement en plastique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360949A1 (fr) * 1988-09-30 1990-04-04 SPRAY PLAST S.p.A. Pulvérisateur pour liquides actionnable manuellement
US20010030246A1 (en) 1997-09-04 2001-10-18 Schuckmann Alfred Von Spray pump capable of being actuated by a hand lever
US20040118877A1 (en) * 2001-03-10 2004-06-24 Alfred Von Schuckmann Pump which can be actuated by a hand lever
WO2006073307A1 (fr) * 2005-01-10 2006-07-13 Afa Polytek B.V. Dispositif de dosage a paroi mince comportant une gachette moulee de facon solidaire et un ressort et son procede d’assemblage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360949A1 (fr) * 1988-09-30 1990-04-04 SPRAY PLAST S.p.A. Pulvérisateur pour liquides actionnable manuellement
US20010030246A1 (en) 1997-09-04 2001-10-18 Schuckmann Alfred Von Spray pump capable of being actuated by a hand lever
US20040118877A1 (en) * 2001-03-10 2004-06-24 Alfred Von Schuckmann Pump which can be actuated by a hand lever
WO2006073307A1 (fr) * 2005-01-10 2006-07-13 Afa Polytek B.V. Dispositif de dosage a paroi mince comportant une gachette moulee de facon solidaire et un ressort et son procede d’assemblage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450026A4 (fr) * 2016-04-25 2019-12-18 Canyon Corporation Pulvérisateur à gâchette
EP4098578A4 (fr) * 2020-09-08 2024-02-14 Majesty Packaging Systems Limited Pompe de pulvérisation de pistolet entièrement en plastique

Also Published As

Publication number Publication date
IT1401497B1 (it) 2013-07-26
ITMI20101448A1 (it) 2012-01-31

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