EP3827902A1 - Kit für sprühpistole, anwendungsverfahren und entsprechende pistole - Google Patents

Kit für sprühpistole, anwendungsverfahren und entsprechende pistole Download PDF

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Publication number
EP3827902A1
EP3827902A1 EP20210226.5A EP20210226A EP3827902A1 EP 3827902 A1 EP3827902 A1 EP 3827902A1 EP 20210226 A EP20210226 A EP 20210226A EP 3827902 A1 EP3827902 A1 EP 3827902A1
Authority
EP
European Patent Office
Prior art keywords
spray gun
jacket
cup
ring
kit
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
EP20210226.5A
Other languages
English (en)
French (fr)
Other versions
EP3827902B1 (de
Inventor
Mazen ZAKI
Saman SHOHOUDI
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.)
Exel Industries SA
Original Assignee
Exel Industries SA
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 Exel Industries SA filed Critical Exel Industries SA
Publication of EP3827902A1 publication Critical patent/EP3827902A1/de
Application granted granted Critical
Publication of EP3827902B1 publication Critical patent/EP3827902B1/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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
    • B05B7/241—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus the container being pressurised
    • 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
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • B05B11/061—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump characterised by the means producing the gas or vapour pressure
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B05B7/0838—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter comprising a single means controlling simultaneously the flow rates of shaping and spraying gas jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/129—Hand guns comprising a gas valve located at the bottom of the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter

Definitions

  • the present invention relates to a kit capable of pressurizing a fluid from a reservoir of a cup of a spray gun.
  • the present invention further relates to a method of using the spray gun kit and to a gun comprising such a kit.
  • the product is fed into a bucket gun is usually done by suction or by gravity, in particular by the venturi effect /
  • the bucket can be pressurized
  • a compressed air compressor is used to pressurize the fluid.
  • the characteristics of the compressed air compressor are chosen as a function of the flow rate and pressure provided for the spray gun, to allow optimum adaptation of the gun as a function of the fluid to be applied.
  • An additional pipe is thus provided between the body of the gun and the cup to put the cup under pressure.
  • a hole is provided in the gun body to allow connection of the additional hose.
  • An object of the invention is therefore to provide a kit for a spray gun capable of pressurizing a fluid from a reservoir of a cup of a spray gun, simple and practical to use.
  • Such a kit also makes it possible to adapt a spray gun for use under pressure without requiring any drilling on the body of the gun.
  • the connector then makes it possible to recover the pressure, at least partial, of a fluid at a location of the spray gun in order to pressurize the fluid included in the reservoir of a cup.
  • the invention also relates to a spray gun comprising a main body, a cup and a spray gun kit as described above, in which the jacket is connected to an open chamber of the main body, so that the open chamber and the internal volume of the liner together define a single volume, the cup defining a reservoir, the connecting end being connected to the cup, the internal volume of the liner being fluidly connected to the reservoir of the cup by the connection.
  • a spray gun 10 according to a first embodiment is shown in the figures 1 and 2 .
  • the spray gun 10 is intended for spraying a fluid product.
  • the fluid product preferably has a viscosity of between 0.1 mPa.s and 100,000 mPa.s, more particularly between 1 and 1000 mPa.s.
  • the gun 10 includes a main body 12, a cup 14, and a spray gun kit 16.
  • the main body 12 has a first part 18, hereinafter called “barrel”, comparable to the barrel of a pistol, and a second part 20, called hereinafter “butt”, similar to the butt of a pistol.
  • the body 12 also comprises a third part 22, hereinafter referred to as “breech”, comparable to the breech of a pistol.
  • the barrel 18 has a front end 24 which defines the front end of the body 12.
  • the butt 20 extends from a rear end 26 of the barrel 18.
  • the butt 20 extends here perpendicular to the barrel 18.
  • the butt 20 has a distal end 28 opposite the barrel 18.
  • the distal end 28 constitutes the end of the butt 20 furthest from the barrel 18.
  • the butt 20 forms a handle for gripping the pistol 10 by an operator.
  • the breech 22 extends from the rear end 26 of the barrel 18 in the extension of the barrel 18.
  • the breech 22 defines a cavity 30 with the butt 20 and the barrel 18.
  • the body 12 defines an inlet orifice 32 for pressurized fluid, a supply orifice 33 for supplying the gun 10 with a fluid product and an ejection orifice 34 for the ejection of the fluid product from the gun 10. .
  • the body 12 comprises an internal duct 36 fluidly connecting the inlet port 32 for pressurized fluid to the cavity 30.
  • the body 12 comprises a supply duct 37 fluidly connecting the supply port 33 to the ejection port 34.
  • the pressurized fluid inlet 32 is suitable for connecting a member (not shown) for supplying the gun 10 with a pressurized fluid, this supply member typically consisting of a flexible tube.
  • the pressurized fluid is, for example, air.
  • the pressurized fluid has a pressure greater than 200,000 hPa.
  • the pressurized fluid has a pressure of less than 1,000,000 hPa.
  • the pressurized fluid inlet 32 is here formed at the distal end 28 of the butt 20.
  • the supply orifice 33 is suitable for connecting a member for supplying the gun 10 with a fluid.
  • This gun feed member is here the cup 14 comprising a reservoir 15 containing or capable of containing the fluid.
  • the cup 14 is connected to the second supply port by a connecting member.
  • connection member here comprises a first end fitted into the supply orifice 33 and a second end fitted into the reservoir 15.
  • the fluid product is, for example, paint.
  • the supply orifice 33 is defined here on the barrel 18 of the gun.
  • the bucket 14 extends above the barrel 18, i.e. on an opposite side of the barrel 18 from the butt 20.
  • the cup 14 extends below the barrel 18, that is to say on the same side of the barrel 18 as the butt 20.
  • the ejection orifice 34 is formed in the front end 24 of the barrel 18.
  • the ejection orifice 34 is suitable for mounting a nozzle 38 for shaping the fluid at the outlet of the spray gun 10.
  • the internal duct 36 is housed in the butt 20.
  • the spray gun 10 comprises a device for regulating the flow rate of the pressurized fluid in the internal duct 36.
  • the spray gun 10 comprises a needle 44 arranged in the internal duct 36.
  • the internal duct 36 comprises, for example, a distal portion here rectilinear and a proximal portion here rectilinear, the inlet orifice 32 for pressurized fluid being arranged at the level of the distal portion.
  • the needle 44 extends in the continuity of the proximal portion.
  • the needle 44 comprises an obturator at the interface between the distal portion and the proximal portion and is able to regulate the flow of pressurized fluid passing from the distal portion to the proximal portion. More particularly, the obturator is movable in translation to adjust the passage surface between the distal portion and the proximal portion.
  • the body 12 also has an actuation duct 42 from the cavity 30 to the ejection orifice 34.
  • the actuating duct 42 extends along a main axis of extension, corresponding here to the axis of extension of the barrel 18 and of the breech 22.
  • the actuation duct 42 defines a chamber 46 upstream of the ejection orifice 34.
  • the chamber 46 is provided with a seat 47 at the junction between the chamber 46 and the supply duct 37.
  • the seat 47 has in particular a shape widening towards the chamber 46.
  • the actuating duct 42 has a narrowing 49 between the cavity 30 and the chamber 46, that is to say a portion in which the diameter of the actuating duct 42 is strictly less than that of the chamber 46 and that of the cavity 30, the diameter being taken radially with respect to the direction of extension of the duct 42.
  • the spray gun 10 comprises an actuation system 48, said actuation system 48 being here arranged in the actuation duct 42.
  • the actuation system 48 comprises a closure member 50 movable relative to the body 12 between a position of release of the supply duct 37, in which it allows the circulation of the fluid product between the supply orifice 33 and the ejection orifice 34, and a closed position of the supply duct 37, in which it opposes the circulation of the fluid product between the supply orifice 33 and the ejection orifice 34.
  • the closure member 50 is in particular movable in translation relative to the body 12 between its release and closure positions in the direction of extension of the actuating duct 42.
  • the closure member 50 comprises a rod 52 extending into the actuating duct 42 and a head 54 extending into the chamber 46.
  • the supply duct 37 opens at the inlet of the chamber 46 opposite the ejection orifice 34, upstream of the head 54 of the closure member 50.
  • the rod 52 has a diameter substantially equal to the diameter of the constriction 49 of the actuating duct 42.
  • the closure member 50 forms a needle which, when the closure member 50 is in its closed position, bears against the seat 47 and, when the closure member 50 is in its position of closure. release, is away from the seat 47. This offers great flexibility in the adjustment of the output flow rate of the fluid from the supply orifice 33 as a function of the movement of the closure member 50 between its shutter and release positions.
  • the actuation system 48 further comprises a member 54 for returning the shutter member 50 to its closed position.
  • This return member 54 is here formed by a compression spring oriented in the direction of extension of the cylinder head 22 and compressed between, on the one hand, a bottom of the cylinder head 22 and, on the other hand, a stop integral with the closure member 50.
  • the spray gun 10 comprises a trigger 58 intended to activate the actuation system 48 in the released position.
  • the trigger 58 comprises a main branch 59 and two flanges 60.
  • the main branch 59 defines a gripping surface intended to receive at least one finger of an operator holding the stick 20 in his palm.
  • the flanges 60 are spaced from one another and each extend upwards from a respective lateral edge of the main branch 59.
  • the flanges 60 take the body 12, and more particularly the barrel 18, in a sandwich.
  • the trigger 58 is pivotally mounted about a pivot axis A-A ', transverse, relative to the body 12, this pivot axis A-A' being, in the example shown, above the barrel 18.
  • the flanges 60 of the trigger 58 are crossed by a common shaft 61 engaged through the body 12.
  • the common shaft 61 extends along the pivot axis A-A '.
  • the common shaft 61 forms a pivot connection between the trigger 58 and the body 12 so that the trigger 58 is movable in rotation about the pivot axis AA 'relative to the body 12 between an actuated position, in which the trigger 58 is moved towards the butt 20 and the closure member 50 is in its release position, and a priming position, in which the trigger 58 is away from the butt 20 and the closure member 50 is in its closed position.
  • the body 12 also has a pressurized fluid passage duct.
  • the pressurized fluid passage duct comprises a chamber 62.
  • the chamber 62 has an outlet 63 for pressurized fluid.
  • Exit 63 is here bounded at the front of room 62.
  • the outlet 63 is fluidly connected to at least one, here two, outlets 92 arranged at the level of the ejection of the fluid from the spray gun, for example by an intermediate duct 90 and / or an intermediate chamber 91.
  • the intermediate duct here surrounds the supply duct 37 and the intermediate chamber surrounds the chamber 46 of the actuating duct 42.
  • the chamber 62 has a secondary outlet via at least one conduit, here a plurality of conduits 93, arranged in a central portion of the chamber 62.
  • the secondary outlet is fluidly connected to at least one orifice 96 arranged in the front end 24 of the barrel, for example via one or more chambers 94, 95 surrounding the chamber 46 of the actuating duct 42.
  • the chamber 62 is also fluidly connected to the cavity 30, and thus to the inlet port 32 for pressurized fluid.
  • the chamber 62 has an opening opposite its outlet 63 in an extension direction D of the chamber.
  • Kit 16 includes a sleeve 64, a fitting 66 and a ring 68.
  • the liner 64 has, for example, the general shape of a hollow cylinder.
  • the sleeve 64 extends along a main axis of extension between a distal end and a proximal end.
  • the jacket 64 defines an internal volume 70, the internal volume being designed to contain a fluid.
  • the liner 64 has an outer circumferential surface 72, forming a radial periphery of the liner 64, and an inner circumferential surface 74 delimiting the internal volume 70.
  • Jacket 64 includes a fluid outlet on its outer circumferential surface 72 as described below.
  • the outer circumferential surface 72 has a recess 73 on a circumference of the sleeve 64, here a cylindrical recess.
  • the recess 73 is spaced from each of the distal and proximal ends of the sleeve 64.
  • the internal circumferential surface 74 has a recess 75, here cylindrical.
  • the recess 75 extends over a portion of the inner circumferential surface 74 from the proximal end of the liner 64.
  • the sleeve 64 delimits at least one orifice 76.
  • the or each orifice 76 passes through the wall of the liner 64.
  • the or each orifice 76 opens onto the radial periphery 72 and fluidly connects the internal volume 70 and the radial periphery 72.
  • the or each orifice 76 passes through the liner 64 from the outer circumferential surface 72 to the inner circumferential surface 74.
  • the or each orifice 76 fluidly connects the recess 73 of the outer circumferential surface 72 and the recess 75 of the inner circumferential surface 74.
  • the recess 73 here defines the fluid outlet of the jacket 64, here from the internal volume 70.
  • the fluid outlet of the jacket 64 is, for example, defined by the or each orifice 76 opening into the outer circumferential surface 72.
  • the sleeve 64 delimits one or more orifices 76 distributed over the circumference of the sleeve 64.
  • Each orifice 76 passes through the liner 64 along a respective axis.
  • the respective axis of each orifice 76 forms with the main axis of extension of the sleeve 64 an angle of between 30 ° and 90 °, more particularly between 45 ° and 75 °.
  • the orifices 76 are here, more particularly, distributed so that their respective axes are situated on the same cone having as a generator the main extension axis of the sleeve 64.
  • Jacket 64 is configured to connect to main body 12.
  • the jacket 64 is here connected to an open chamber of the main body, here the chamber 62 of the pressurized fluid passage duct, so that the open chamber and the internal volume of the jacket together define a single common volume.
  • the main axis of extension of the sleeve 64 extends in the direction of extension D of the chamber 62.
  • the proximal end of the jacket 64 is inserted into the opening of the chamber 62 of the pressurized fluid passage duct.
  • the opening has, for example, a thread and part of the outer circumferential surface 72 of the sleeve 64 has a complementary thread from the proximal end of the sleeve 64.
  • the spray gun 10 further comprises a needle 78 arranged in the internal volume of the jacket 64 and in the open chamber 62, the needle 78 being able to regulate the passage of fluid between the chamber 62 of the pressurized fluid passage duct and the intermediate duct 90.
  • the needle 78 comprises a shutter movable in translation in the chamber 62 arranged to adjust the passage surface of the outlet 63 of the chamber 62.
  • the needle 78 cooperates with the inner circumferential surface 74 of the liner 64.
  • the liner 64 has, for example, an internal thread on a part of the inner circumferential surface 74 from the distal end, the needle having a complementary thread.
  • the needle 78 here occupies the entire internal volume 70 of the sleeve 64 except for the volume defined by the recess 75.
  • the pressurized fluid passage duct thus makes it possible to selectively insert pressurized fluid from the pressurized fluid inlet port 32 to the outlet or outlets 92 arranged at the level of the ejection of the fluid from the spray gun.
  • the connector 66 has a sampling end 80 and a connection end 82.
  • the connector 66 here comprises a pipe extending between the sampling end 80 and the connection end 82.
  • the sampling end 80 is directly connected to the fluid outlet of the jacket 64 on its radial periphery.
  • connection end 82 is here connected to the cup 14 so as to fluidly connect the cup 14, more particularly the reservoir 15, to the air outlet of the jacket 64.
  • the connector 66 is advantageously provided with a regulator 84 capable of controlling the fluid pressure passing through the sampling end 80.
  • the regulator 84 makes it possible, for example, to adjust the passage of fluid such that the pressure of the fluid is between 0 and 6 bar.
  • the regulator 84 is able to control the flow of fluid passing through the sampling end 80.
  • the regulator 84 is screwed directly at the outlet of the ring 68.
  • the ring 68 surrounds the shirt 64.
  • the ring 68 covers the entire fluid outlet of the jacket 64 on the radial periphery, more particularly here of the recess 73, with the exception of the connection of the sampling end 80 of the connector 66.
  • the ring 68 comprises a cylindrical portion surrounding the liner 64 at least around the fluid outlet of the liner 64.
  • the cylindrical portion comprises a radial orifice for the passage of the sampling end 80 of the connector 66.
  • the ring 68 and / or the sleeve 64 is provided with O-rings 86 located on either side of the recess 73.
  • Such a kit allows the selective sampling of pressurized fluid in order to pressurize the fluid product contained in the cup 14.
  • the fluid 14 is, for example, placed under a pressure of between 0 and 6 bar.
  • the ring 68 is also here free to rotate around the main axis of extension of the sleeve 64 at least over a given angular interval.
  • the given angular interval is, for example, substantially equal to 180 °.
  • the given angular interval is equal to 360 °.
  • the ring 68 is here free to rotate between a right position and a left position.
  • the sampling end 80 of the connector 66 is connected to the jacket 64 to the right of the main body 12, more particularly of the pressurized fluid passage duct, with respect to a user of the gun.
  • the regulator valve 84 of the connector 66 is then easily accessible from the right, in particular by the user's right hand.
  • the sampling end 80 of the connector 66 is connected to the jacket 64 to the left of the main body 12, more particularly of the pressurized fluid passage duct, with respect to a user of the gun.
  • the regulator valve 84 of the connector 66 is then easily accessible from the right, in particular by the left hand of the gun.
  • the ring has at least one indexing element, here two indexing elements.
  • the main body has at least one complementary indexing element, here a single complementary indexing element, provided to cooperate with the at least one indexing element to block the ring 68 in at least one given position relative to the body. main 12.
  • the or each given position corresponds to an angular position of the given ring around the main axis.
  • the at least one given position comprises the right position and the left position.
  • the indexing elements of the ring are, for example, flats, the complementary indexing element of the main body 12 being a flat arranged to cooperate with a first of the flats of the ring in the upright position and with a second of the flats. of the ring in the left position.
  • the indexing elements of the ring are retractable fingers, the complementary indexing element of the main body 12 being a hole provided to cooperate with a first of the fingers in the right position and with a second of the fingers in the left position.
  • the indexing elements of the ring are holes, the indexing element complementary to the main body 12 being a finger retractable designed to fit into a first of the holes in the right position and into a second of the holes in the left position.
  • the recess is hollowed out in the ring 68, more particularly in an internal circumferential surface of the ring 68 extending facing the external circumferential surface 72 of the sleeve 64.
  • the orifice 76 then fluidly connects the outer circumferential surface 72 of the liner 64 facing the recess made in the ring 68 and the recess 75 of the inner circumferential surface 74 of the liner 64.
  • the recess is cut both in the sleeve 64 and in the ring 68, more particularly in the outer circumferential surface 72 of the sleeve 64 and an inner circumferential surface of the ring 68 s' extending facing the outer circumferential surface 72 of the liner 64.
  • the regulator is mounted in line between the kit 16 devoid of regulator, for example as shown in the figure. figure 4 , and the cup 14. More particularly, the regulator comprises an inlet fluidically connected, for example by a pipe, to the kit, more particularly to the fluid outlet of the jacket, and an outlet fluidically connected, for example by a pipe, to the kit. bucket.
  • the regulator 184 is incorporated directly into the ring 168 of the kit 116.
  • the regulator 184 is integral with the cylindrical portion surrounding the sleeve 164.
  • the radial orifice of the cylindrical portion of the ring 168 is fluidly connected to the regulator 184.
  • Regulator 184 has an outlet 165 for connecting a hose.
  • the regulator 184 is able to adjust the flow rate and / or the pressure of the fluid passing through it, that is to say between the radial orifice of the cylindrical portion of the ring 168 and the outlet 165.
  • connection between the radial orifice of the cylindrical portion and the cup comprises, in said example, the regulator 184 and the pipe extending from the outlet 165.
  • the proximal end of the sleeve 64, 164 is here inserted into the open chamber 62. More particularly, the jacket 64, 164 is screwed into the opening of the chamber 62.
  • the needle 78, 178 is further inserted into the internal volume 70 of the sleeve 64, 164. More particularly, the needle 78, 178 is screwed onto the thread of the internal circumferential surface 74.
  • the installation of the kit on the gun is particularly easy.
  • the spray gun is provided so that the pressure kit is connected to another location of the gun.
  • the chamber of the pressurized fluid passage duct is, for example, closed directly by the needle fitted into the chamber, for example using a sleeve.
  • the kit is, for example, intended to be fixed around the needle 44 of the inlet orifice 32 for pressurized fluid.
  • the kit can be designed to be attached to the connection of the inlet port 32.
  • the kit is designed to be fixed around the cavity 30 of the actuation duct 42.
  • Such a kit therefore makes it possible to easily adapt the spray gun to provide for a sample of pressurized fluid in the direction of the reservoir of the bucket if necessary.
  • the kit is suitable for being withdrawn, the chamber of the pressurized fluid passage duct being adapted to be closed directly by the needle 78, for example, by fitting the needle in the chamber, in particular. using a sleeve.
  • the regulator 84 is adjusted so that the passage area of a circumference in the connector 66 is zero.
  • the kit is easily placed on the gun at the desired location.
  • the connector then makes it possible to recover the pressure, advantageously in a selective manner, of the pressurized fluid at a location of the spray gun in order to pressurize the fluid included in the reservoir of a cup.
  • the pressure gun with the kit is also easily handled by a user.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP20210226.5A 2019-11-29 2020-11-27 Kit für sprühpistole, anwendungsverfahren und entsprechende pistole Active EP3827902B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1913481A FR3103716B1 (fr) 2019-11-29 2019-11-29 Kit pour pistolet pulvérisateur, procédé d’utilisation et pistolet associé

Publications (2)

Publication Number Publication Date
EP3827902A1 true EP3827902A1 (de) 2021-06-02
EP3827902B1 EP3827902B1 (de) 2022-08-10

Family

ID=69700109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20210226.5A Active EP3827902B1 (de) 2019-11-29 2020-11-27 Kit für sprühpistole, anwendungsverfahren und entsprechende pistole

Country Status (7)

Country Link
US (1) US11931764B2 (de)
EP (1) EP3827902B1 (de)
JP (1) JP2021084107A (de)
KR (1) KR20210067921A (de)
CN (1) CN112871493B (de)
ES (1) ES2926925T3 (de)
FR (1) FR3103716B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021191791A1 (en) * 2020-03-27 2021-09-30 3M Innovative Properties Company Spray gun converter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD943710S1 (en) * 2020-05-19 2022-02-15 Zhejiang Rongpeng Air Tools Co., Ltd. Paint sprayer
USD950679S1 (en) * 2021-06-16 2022-05-03 Zhejiang Rongpeng Air Tools Co., Ltd. Paint spray gun
CN113857132B (zh) * 2021-11-01 2022-11-11 成都川隆机电有限公司 一种节能型清洗机用喷枪
CN217699657U (zh) * 2022-06-29 2022-11-01 浙江荣鹏气动工具股份有限公司 一种组装成形的气动喷枪调压阀组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090530A (en) * 1960-06-27 1963-05-21 Vilbiss Co Air flow control for pressure feed containers
WO2016180863A1 (de) * 2015-05-12 2016-11-17 Basf Coatings Gmbh Sicherheits- und regelvorrichtung für druckbehälter und druckbehälter mit einer solchen sicherheits- und regelvorrichtung
EP3517215A1 (de) * 2018-01-26 2019-07-31 Graco Minnesota Inc. Handhaltbare texturspritzpistole mit trichter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1045887A (fr) * 1950-07-15 1953-12-01 Albach & Co Pistolet atomiseur à basse pression pour peinture
JPH0474551A (ja) * 1990-07-13 1992-03-09 Chiron Werke Gmbh & Co Kg スプレーガン
US9327300B2 (en) * 2013-09-11 2016-05-03 Fuji Industrial Spray Equipment Ltd. Spray gun with side-mounted fan control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090530A (en) * 1960-06-27 1963-05-21 Vilbiss Co Air flow control for pressure feed containers
WO2016180863A1 (de) * 2015-05-12 2016-11-17 Basf Coatings Gmbh Sicherheits- und regelvorrichtung für druckbehälter und druckbehälter mit einer solchen sicherheits- und regelvorrichtung
EP3517215A1 (de) * 2018-01-26 2019-07-31 Graco Minnesota Inc. Handhaltbare texturspritzpistole mit trichter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021191791A1 (en) * 2020-03-27 2021-09-30 3M Innovative Properties Company Spray gun converter

Also Published As

Publication number Publication date
CN112871493B (zh) 2024-06-21
JP2021084107A (ja) 2021-06-03
US11931764B2 (en) 2024-03-19
FR3103716A1 (fr) 2021-06-04
EP3827902B1 (de) 2022-08-10
US20210162438A1 (en) 2021-06-03
ES2926925T3 (es) 2022-10-31
FR3103716B1 (fr) 2021-12-10
KR20210067921A (ko) 2021-06-08
CN112871493A (zh) 2021-06-01

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