EP3265239B1 - Pistolet de pulvérisation - Google Patents

Pistolet de pulvérisation Download PDF

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Publication number
EP3265239B1
EP3265239B1 EP16721346.1A EP16721346A EP3265239B1 EP 3265239 B1 EP3265239 B1 EP 3265239B1 EP 16721346 A EP16721346 A EP 16721346A EP 3265239 B1 EP3265239 B1 EP 3265239B1
Authority
EP
European Patent Office
Prior art keywords
spray gun
liquid
liquid conveying
guide device
paint
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.)
Active
Application number
EP16721346.1A
Other languages
German (de)
English (en)
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EP3265239A2 (fr
Inventor
Martin Ruda
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.)
Martin Ruda 1 Ug (haftungsbeschraenkt)
Original Assignee
Martin Ruda 1 Ug Haftungsbeschraenkt
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=55952910&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3265239(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Martin Ruda 1 Ug Haftungsbeschraenkt filed Critical Martin Ruda 1 Ug Haftungsbeschraenkt
Priority to EP24163881.6A priority Critical patent/EP4364855A2/fr
Priority to EP21194804.7A priority patent/EP3954468B1/fr
Publication of EP3265239A2 publication Critical patent/EP3265239A2/fr
Application granted granted Critical
Publication of EP3265239B1 publication Critical patent/EP3265239B1/fr
Active legal-status Critical Current
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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
    • 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
    • B05B7/2435—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 the carried liquid and the main stream of atomising fluid being brought together by parallel conduits placed one inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/18—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • 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
    • 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
    • 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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the invention relates to a spray gun.
  • a generic spray gun is from EP 1 964 616 A1 famous.
  • a thread is also understood to mean a bayonet lock.
  • the base body and the liquid guiding device are fastened to one another with a device such as a fastening nut.
  • the U.S. 2010/01873333 A1 describes a two-part liquid guide device in which a softer component with sealing surfaces is inserted into a harder nozzle part in order to achieve a good seal on the contact surface between the liquid guide device and the base body, while the nozzle is designed to be particularly stable.
  • the softer component has contact surfaces that bend when pushed into the nozzle part and engage in recesses in the nozzle part in such a way that the softer component and the nozzle part are permanently connected to one another. This makes it possible to provide a soft, rubber-like contact surface for sealing between the liquid guiding device and the base body of a spray gun.
  • the U.S. 2013/0320110 A1 shows an air distribution plate with concentric outer bearing surfaces.
  • the air distributor plate has an essentially conical shape. However, this shape is formed by concentric ring-shaped surfaces. These concentric contact surfaces form an air space between them, in which the air is distributed within the air distribution plate.
  • the invention is based on the object of further developing such a spray gun and in particular a spray gun for paint.
  • the contact surfaces between the liquid guide device and the base body are arranged at an angle to the orientation of the liquid guide tube in such a way that the base body has a conical receptacle for the liquid guide device.
  • the liquid guide device can then be pushed into the base body, for example by means of the fastening nut, with the inclined contact surfaces of the liquid guide device being pushed into the cone of the base body. This creates a good seal in a simple manner over a large surface area, which also extends parallel to the liquid guide tube.
  • the contact surfaces between the liquid guiding device and the base body or a base body add-on part seal and passages are provided between these contact surfaces, which enable an outwardly sealed passage from the base body of the spray gun to an air cap.
  • two contact surfaces are arranged conically to one another and that at least one passage is arranged between these contact surfaces, with at least one elevation being formed between the two contact surfaces and a matching depression being formed in the base body or the base body add-on part, or at least one between the two contact surfaces Depression is formed and a matching survey is formed in the base body or the base body attachment, wherein at least one passage is arranged in the survey.
  • a further aspect of the invention which is essential to the invention even without the features described so far, relates to a generic spray gun which has a paint needle which is arranged in a channel of the liquid guiding device, with a wiper being arranged between the channel and the paint needle.
  • spray guns When using the spray gun for spraying lacquers, paints, adhesives, fillers or similar substances, spray guns are used in which a paint needle extends inside the liquid guide device. This color needle thus comes into contact with the liquid. When replacing the liquid guide device or the needle, the needle remains dirty and must be cleaned, especially when changing color.
  • a stripper is arranged between the channel and the paint needle. Such a stripper is in contact with the paint needle and, when the paint needle is pulled out or when the liquid guiding device is pulled out, rubs over the paint needle in such a way that paint residues are removed from the paint needle. As a result, the cleaning of the paint needle is either made obsolete or at least greatly simplified.
  • a simple embodiment provides that the wiper is inserted into the channel.
  • a rubber disc with a central hole can be used as a wiper, for example, which wraps around the paint needle like a seal.
  • Such a disk used in the channel which can also be made of a harder material and has a lip, for example, is inexpensive to manufacture and can also be replaced if necessary.
  • the wiper Since it is advantageous to produce the liquid guiding device as a disposable article, it is proposed to form the wiper in one piece with the liquid guiding device.
  • the scraper can be made of the same material as the liquid guiding device.
  • the shape of the wiper can ensure that it rests against the paint needle without restricting the mobility of the fern needle too much.
  • the use of a two-component material for the production of the liquid guiding device makes it possible to produce a wiper in a material that is optimized for its function.
  • an air distribution disk is screwed to the base body, within which the liquid guiding device extends.
  • the air distributor disk can be made of metal, while the liquid guiding device is made of plastic.
  • Such an air distribution disk either has a thread with which it is screwed to the base body or it is screwed to the base body with one or more screws that extend through holes in the air distribution disk.
  • the base body has the air distribution disk. If the air distribution disk is manufactured as a single part, it can be placed on the base body and adapt different base bodies of spray guns to the coating agent guide device. On the other hand, if the air distributor disk is configured as one piece with the base body of the spray gun, it has the advantage that no separate air distributor disk is required. For this purpose, the structure required as an air distribution disk is formed directly in the base body of the spray gun.
  • Another aspect of the spray gun that can also be used independently of the aforementioned features provides that it has an air cap, with the fastening nut pulling the air cap against the liquid guiding device in such a way that the air cap can still be rotated when the fastening nut is screwed on.
  • a fit is provided which, on the one hand, allows the fastening nut to be tightened in such a way that the liquid guide device is securely fastened to the base body and, on the other hand, to clamp an air cap mounted in the fastening nut only so tightly that it can still be rotated when the fastening nut is screwed on.
  • the air cap does not have to rest on an annular surface, but it can also only rest on a segment of an annular surface in order to be easier to rotate.
  • the air cap has a contact surface with a latching element in order to latch in a specific position relative to the base body.
  • the contact surface with the latching element can interact with a latching counterpart on the fastening nut, on a nozzle or on the liquid guiding device or also on a displaceable pin.
  • a design is also advantageous in which the base body of a spray gun and a liquid guide device form an annular contact surface for a fastening nut, with the liquid guide device that has not yet been screwed on protruding in a partial area of the contact surface compared to the remaining area of the contact surface.
  • the liquid guiding device is inserted into the base body and this leads to a part of the contact surface protruding in relation to the remaining area of the contact surface.
  • the liquid guiding device can have a protruding element which engages in the thread of the fastening nut when the fastening nut is screwed on, so that the fastening nut presses the liquid guiding device towards the base body when it is screwed on.
  • the protruding element can have sloping contact surfaces that make it easier to engage with the thread, so that the protruding element is guided in a recess of the thread when the fastening nut is screwed on.
  • the contact surfaces between the liquid guiding device and the base body or a base body add-on part seal and passages are provided between these contact surfaces, which enable an outwardly sealed passage from the base body of the spray gun to an air cap.
  • the contact surfaces between the liquid guide device and the base body are arranged at an angle to the orientation of the liquid guide tube in such a way that there is a conical receptacle for the liquid guide device on the base body.
  • the liquid guide device can then be pushed into the base body, for example by means of the fastening nut, with the inclined contact surfaces of the liquid guide device being pushed into the cone of the base body. This creates a good seal in a simple manner over a large surface area, which also extends parallel to the liquid guide tube.
  • the liquid guiding device can have a protruding element which engages in the thread of the fastening nut when the fastening nut is screwed on, so that the fastening nut presses the liquid guiding device towards the base body when it is screwed on.
  • the protruding element can have sloping contact surfaces that make it easier to engage with the thread, so that the protruding element is guided in a recess of the thread when the fastening nut is screwed on.
  • an axially displaceable pin in the base body. With this pin, pressure can be exerted on the liquid guiding device. With an axial displacement of the pin, one end of the pin can thus press on the liquid guiding device in order to remove the liquid guiding device from the base body.
  • Such a pin can have a contact surface that is decentralized to its central axis for contact with the liquid guiding device. This makes it possible to move the pin decentrally to the liquid guide tube of the liquid guide device and to press it in the vicinity of the liquid guide tube on the liquid guide device. As a result, tilting of the liquid guide device is minimized when the pin is pressed on a specific position of the liquid guide device when it is pushed out.
  • an elevation can be provided between the contact surfaces of the liquid guide device, in which elevation the passage is provided, so that this elevation can be inserted into a corresponding depression in the base body.
  • the depression into which an elevation of the base body is inserted can also be provided in the liquid guiding device.
  • the liquid guide device has a paint needle channel for a paint needle and, as a liquid guide tube, a paint channel for a spray agent, spaced radially therefrom. There is thus a wall between the paint needle channel and the liquid guide tube, which prevents the paint needle from being contaminated with liquid
  • the paint channel extends from the liquid inlet pipe by a wall, separated from the paint needle channel, to the exit from the liquid guide device.
  • a bushing is arranged in the liquid guiding pipe in front of the orifice in the direction of flow.
  • This socket is preferably made of plastic. It can be screwed or glued into the liquid inlet pipe.
  • the bushing is preferably held in the liquid guide tube by means of a press fit.
  • the bushing In order to facilitate the positioning of the bushing in the liquid-guiding pipe, it is proposed that the bushing have a radial stop or a flange. This makes it possible to push the socket into the liquid guide tube until the radial stop or the flange is in contact with the liquid guide tube.
  • a stripper is arranged in the socket.
  • This wiper can interact with a paint needle in order to strip liquid from the surface of the paint needle when there is a relative movement between the paint needle and the bushing.
  • This scraper can be formed by a perforated disk.
  • a perforated disc either has a fine lip seal as a scraper or is off made of a softer material such as rubber. This makes it possible to clean the paint needle with the perforated disc.
  • Such a perforated disk can be fixed in a recess in the bush and preferably snap in there, but it can also be produced during injection molding, so that a bush is made of a two-component material, or a softer material is injected into a recess in the bush, so that a annular perforated disc is formed, which is in one piece with the socket and is therefore firmly connected to the socket.
  • the scraper is formed by a flange that extends radially inward from the bushing.
  • This flange is preferably formed in one piece with the bushing. Even a small ring-shaped elevation produced by injection molding and protruding beyond the cylindrical inner surface of the bushing allows the bushing to bear in a ring-like manner on a paint needle, while the paint needle is freely displaceable in the remaining area of the bushing.
  • liquid guide device provides that a nozzle is arranged in the liquid guide tube in the direction of flow after the mouth.
  • This nozzle can be formed in one piece with the liquid guide tube or can be attached to the liquid guide tube.
  • the nozzle is fastened in the liquid guide tube with a press fit.
  • the nozzle can also be attached with a thread in the liquid guide tube.
  • the nozzle has an air distribution disk.
  • the air distribution disk can also be designed in one piece with the liquid guide tube or can be fastened to the liquid guide tube by means of a press fit. A screw connection is also possible.
  • a web extends radially outwards from the liquid feed pipe, at the end of which a gripping surface is arranged. At least two opposing gripping surfaces, which can also be designed as pull tabs, are advantageous.
  • a special embodiment provides that pressure on a gripping surface leads to a deformation of the liquid guide device, via which the liquid guide device presses against the base body of a spray gun at certain points in order to detach the liquid guide device from the base body.
  • the liquid feed tube may have a radially outwardly extending flange with air holes.
  • This radial flange with air holes can act as an air distribution disc or only allow air to pass in a flow parallel to the liquid inlet pipe.
  • a web extends in a region of the outer surface of the radially outwardly extending flange, at the end of which a gripping surface is arranged.
  • the liquid guiding device can then be held, for example, by a gripping surface on the liquid guiding tube and one on the outwardly extending flange, in order to pull it out of the main body of a spray gun.
  • the spray gun cup is usually unscrewed from the liquid guide and emptied and cleaned or hermetically sealed to store the remaining paint.
  • the liquid guiding device is cleaned or discarded and the paint needle on the main body of the paint spray gun is cleaned.
  • the liquid guide device together with the spray gun cup be removed from the main body of the spray gun and the two remaining openings as the inlet and outlet of the liquid guide tube are closed.
  • the liquid guiding device has an input and opposite has an exit and a closure device, wherein the closure device closes the entrance and the exit.
  • the air flow opening is closed on gravity cups. Then the flow cup can also be placed on its lid. This seals the spray gun cup airtight for storage when the liquid guide device is screwed on.
  • the closure device has two covers, plugs or screw caps. It is advantageous if the covers, plugs or screw caps are of identical design, so that different closure devices do not have to be kept in stock.
  • a particularly preferred variant makes it possible to close both openings of the liquid guiding device with a closing means.
  • the closure device has a mandrel which closes the inlet and outlet.
  • This mandrel can be inserted into the liquid-guiding device like a paint needle, and latching areas and/or fittings ensure that the openings are sufficiently airtightly sealed.
  • the mandrel experiences a seal in places that are not completely sealed due to the drying of the paint.
  • the openings are opened again in such a way that the cup with the liquid guiding device can be inserted into the spray gun body.
  • the paint needle or part of a paint needle can also be used as a mandrel. If the paint needle can be removed from the spray gun or if the paint needle can be divided so that the front part of the paint needle can be separated from a rear part, it is possible for the mandrel to be part of a paint needle.
  • the locking device and in particular the mandrel can preferably be made of a plastic material.
  • the closure device can then be designed as a disposable component which, after spraying, together with the liquid guide device, serves as an airtight seal of the paint outlet of the spray gun cup.
  • a paint needle as in the DE 10 2007 053 855 A1 is described. Reference is made to this document in its entirety.
  • axial displacement means of the paint needle can be connected to the paint needle, the paint needle or a part of the paint needle can be separated from the main body of the spray gun in order to use it as a locking device after spraying.
  • a liquid guiding device is part of the spray gun during spraying and is removed from the spray gun after spraying, preferably together with the cup, in order to serve as a closure or closable paint reservoir.
  • a set with a liquid guiding device which has a liquid guiding tube in which a nozzle with a bore is arranged.
  • the set has different nozzles with different bore diameters, nozzles with different bore diameters having different colors.
  • liquid guide devices which have different nozzles with different bore diameters, liquid guide devices with different nozzles having different colors.
  • the user can thus select a special one with a certain bore diameter from various liquid guiding devices, whereby the color immediately shows the bore diameter of the nozzle of the liquid guide device.
  • claims 4, 5, 8, 9, 12, 13, 14, 1, 16, 18, 23, 25, 27, 31, 36, 40, 41, 43, 44 and 45 describe aspects of spray guns and liquid guiding devices, which are also essential to the invention independently of the features of the preceding claims.
  • the spray gun 1 shown has a base body 2, a fluid guide device 3 and a fastening nut 4.
  • a paint cup 5 can be fastened to the spray gun 1.
  • the liquid guide device 3 is attached to the base body 2 fastened.
  • the thread 6 has a recess 7 and the liquid guide device 3 has an element 9 which protrudes from its central liquid guide tube 8 and which can be pushed into the recess 7 .
  • the liquid inlet pipe 10 of the liquid guide device 3 reaches a recess 11 in the base body 2.
  • the paint cup 5 can be fastened directly to the liquid supply pipe 10 or it is connected to the liquid-conducting device with the interposition of an adapter.
  • An adapter makes it possible to connect different color guides with different color cups.
  • the paint cup 5 can be screwed on, clipped on or fastened with a latching closure.
  • a click closure is suitable which engages audibly and/or tangibly in order to indicate to the user that the paint cup 5 is securely fastened and preferably even locked. It is advantageous if a stabilizing sleeve surrounds the closure.
  • the liquid guide device 3 can be gripped by the protruding element 9 in order to pull the liquid guide device 3 off the base body 2 .
  • An air distribution disk 12 is screwed to the base body 2 by means of the screws 13 , 14 .
  • This air distribution disk 12 has a central recess 15 within which the liquid guide device 3 extends.
  • the liquid guide device 3 has a mouth 16 at which the liquid feed pipe 10 opens into the liquid guide pipe 8 .
  • a bushing 17 with a flange 18 is arranged in the direction of flow in front of this orifice 16 and is seated in the liquid guide tube 8 with a press fit.
  • an annular rubber disk 19 is attached inside the bushing 17, as a stripper for the paint needle 20.
  • This rubber ring is arranged approximately in the area of the flange 18 and forms a stripper for the paint needle 20 at the point where the needle 20 enters the bushing 17.
  • a radially inwardly extending flange 21 is provided on the inside of the bushing 17, which wipes the paint needle 20 at this point of the bushing 17.
  • This flange 21 is produced from the material of the socket in an injection molding process when the socket is produced.
  • a nozzle 22 with a thread 23 is fastened in the liquid guide pipe 8 at the front end of the liquid guide device 3 in the direction of flow.
  • a nozzle 24 is fastened in the liquid guide tube 8 with a press fit 25 .
  • the nozzles 22 and 24 each have an air distributor disk 26 and 27, respectively.
  • Such a nozzle can be press-fitted to the liquid guide tube, with or without an air distribution disk.
  • the nozzle can be pushed into a recess in the liquid guide tube or the liquid guide tube is pushed into a recess in the nozzle.
  • the fit is particularly stable if at least one of the two parts is not yet fully cured when it is pushed into one another. Then, after nesting, the part hardens and shrinks in the process, significantly increasing the strength of the fit between the parts. In addition, the strength can be further increased if a small groove or undercut is provided between the parts in order to achieve a positive connection.
  • the nozzle or a part of the nozzle can also be made of metal. This makes it possible, in particular, to produce the contact area between the tip of the paint needle and the nozzle from metal in order to increase the stability of the nozzle.
  • a web 28 with a gripping surface 29 extends radially outwards from the liquid guide tube 8.
  • This gripping surface 29 is arranged in such a way that the gripping surface 29 is covered by the fastening nut 4 when the fastening nut 4 is screwed on.
  • a gripping surface 30 is fastened to a web 31, the other end of which extends radially from the liquid guide tube 8 outwards extending flange 32 is located.
  • This flange 32 is provided with bores 33 like an air distribution disk.
  • An air cap 34 with two color horns 35, 36 is arranged in the fastening nut 4, so that the air cap 34 is pressed against the liquid-conducting device 3 when the fastening nut 4 is screwed on.
  • the air cap 34 rests with its inclined contact surface 37 on the liquid guide device 3 in such a way that the air cap 34 can still be rotated even when the fastening nut 4 is screwed on.
  • a special fit on the contact surface 37 defines the force with which the air cap 34 can be rotated when the fastening nut 4 is screwed on.
  • the paint needle 20 extends in a channel 38.
  • This channel 38 is formed by a bore 39 in the sleeve 17, a widened space 40 in the area of the mouth 16 and a bore 41 in the nozzle 22 and 24, respectively.
  • This channel ends at the nozzle tip 42, where the tip 43 of the paint needle 20 rests when the nozzle is closed and is positioned at a distance from the nozzle tip 42 when the nozzle is open.
  • two different scrapers 19 and 21 are arranged in the exemplary embodiment.
  • several identical or different wipers in different design variants can also be arranged inside the bushing 17 in order to clean the paint needle as far as possible when the liquid guide device 3 is pulled out.
  • the air cap 34 with the colored horns 35 and 36 can be rotated in the fastening nut 4 but cannot be lost. After unscrewing the fastening nut 4, the color horns 35, 36 should be arranged in a certain position (vertically or horizontally).
  • latching elements 45, 46 are provided on the one hand on the air cap 34 and on the other hand on the nozzle 22 or the body 44 of the liquid guide device 3, which noticeably point to one or more special positions when the air cap 34 is turned.
  • the fastening nut 4 When the fastening nut 4 is screwed onto the thread 6 of the base body 2 , the fastening nut 4 moves in the axial direction towards an annular surface 47 . During this movement towards the surface 47, the fastening nut 4 touches a protruding area 49 of the liquid guide device 3 in a recessed partial area 48. This means that when the fastening nut 4 is screwed on, the liquid guide device 3 is pressed into the base body 2 of the spray gun 1.
  • liquid guiding device 3 can be pressed when the fastening nut 4 is screwed on by a protruding element 50 (shown only schematically) in the base body 2 of the spray gun 1 by the protruding element 50 engaging in the thread 51 of the fastening nut 4 .
  • the liquid guide device 3 should be inserted centered along the alignment of the paint needle 20 into a receptacle 52 in the base body 2 of the spray gun 1 .
  • the contact surfaces 53, 54 between the liquid guide device 3 and the base body 2 are slightly conical.
  • an angle 55, 56 of 1° is indicated in each case, which indicates the conical configuration.
  • the radial ones Surfaces 57 and 58 on the webs 28 and 31 are slightly conical and interact with correspondingly conical contact surfaces in the base body 2 in order to optimally seal the entire contact between the liquid guide device and the base body in a ring shape and to position the liquid guide device with a precise fit when it is inserted into the base body.
  • liquid guide device 3 If the liquid guide device 3 is inserted with a tight fit into the base body 2 and has been tightened by the fastening nut 4, there is a secure, tight fit between the base body 2 and the liquid guide device 3. This means that when the fastening nut 4 is unscrewed from the base body 2, the liquid guide device 3 continues to be secure sits in the base body 2 and must be pulled out of the base body 2 with the gripping surfaces 29 and 30.
  • the fastening nut 4 is preferably made of metal with an annular contact surface made of plastic. This plastic contact surface acts on the liquid guide device 3 when the fastening nut 4 is screwed on and slides along the liquid guide device 3 . When the fastening nut 4 is tightened, this contact surface made of plastic acts as a seal between the liquid guide device 3 and the fastening nut 4.
  • a further seal can be achieved between the fastening nut 4 and the body 2 of the spray gun by having a seal on the surface on which the annular side of the fastening nut faces the body, which then bears against the body when the fastening nut is fully screwed on.
  • a seal of this type can also be provided on the contact surface on the base body, so that the fastening nut 4 moves towards this seal when it is screwed on, in order to compress the seal somewhat when it is screwed on in order to achieve a seal.
  • a sealed space is provided between the base body 2 and the fastening nut 4, in which the spray guide device is arranged can.
  • This space is preferably even sealed up to the contact surface between the paint needle 20 and the opening in the fastening nut that interacts with it.
  • the withdrawal of the liquid guide device 3 from the base body 2 can be facilitated by a pin 59 which is guided in a bore 60 in the base body 2 and has a contact surface 61 which acts on a counter-surface 62 on the body 44 of the liquid guide device 3.
  • the contact surfaces 61 and 62 are in the in figure 22 shown embodiment parallel to each other and arranged in the present case at an angle 63 of 65 ° to the extension of the paint needle 20 in order to exert a compressive force 64 on the liquid guide device 3 with the pin 59.
  • a compressive force 64 acting decentrally in the direction of the central axis 65 of the pin 59 to align the paint needle can lead to the liquid guide device 3 tilting within the base body 2 . Therefore, at the front end of the pin 59 a contact surface 66 decentralized to the central axis 65 of the pin 59 is provided in order to exert a force on the liquid guiding device in a targeted manner also decentralized to the axis 65 of the pin 59 .
  • the pin 59 has a circumferential groove 67 in which a snap ring 68 is arranged, which in turn interacts with a spring 69 in such a way that the pin 59 is pressed into a position in which it does not press against the liquid guide device 3 .
  • the end 70 of the pin 59 thus acts as a push button with which the liquid guide device 3 can be ejected.
  • the snap ring and spring are arranged in such a way that when the spring is relieved, the end 70 of the pin 59 is positioned in the base body and the opposite end hardly or not at all protrudes from the base body.
  • the pin 59 is then pushed backwards against the spring force, so that its end 70 protrudes from the base body. This also makes it possible, after unscrewing the fastening nut 4 with the pin 59, to press the liquid guide device 3 out of the base body 2.
  • the pin 59 can also be pulled backwards away from the liquid guide 3 against the force of a spring 69 so that when the pin 59 is released, it is accelerated by the force of the spring 69 and moves rapidly towards the liquid guide 3 . As a result, the pin 59 strikes the liquid guide device 3. It has been shown that even a small impact from behind on the liquid guide device 3, for example with such a pin 59, is sufficient to loosen the liquid guide device 3 in such a way that it detaches itself from the base body 2 of the spray gun 1 releases.
  • the pin can also be pressed against a spring force into the base body 2 of the spray gun 1 when the liquid guide device 3 is inserted. When the tension built up as a result is later released, the pin hits against the liquid guide device 3 and can thereby detach the liquid guide device 3 from the base body 2 of the spray gun 1 .
  • the liquid guide device 3 can also be detached from the base body 2 of the spray gun 1 by the paint needle 20 .
  • a stop 108 is provided on the paint needle 20, which is arranged in such a way that it can act on the liquid guide device 3 (see FIG Figure 42 ).
  • the paint needle 20 can, for example, on the rear side of the liquid guide device 3 against the rubber disc 17, the sleeve 19 or in the front area against the nozzle 22 in order to detach the liquid guide device 3 from the base body 2 of the spray gun 1.
  • the base body 2 can have a trigger (not shown), which moves the paint needle in the usual way.
  • the trigger can be brought into a position in which the paint needle 20 presses against the liquid guide device 3.
  • a paint needle 20 preloaded with a spring is triggered via the trigger, so that the paint needle 20, moved by the spring, strikes the liquid guide device 3.
  • the pin 59 and the gripping surfaces 29, 30 thus represent means which can be used alternatively or cumulatively and which make it possible to remove the liquid guide device 3 from the base body 2.
  • An impact or pressure on the liquid guide device 3 can act on a weakened area of the liquid guide device 3 in such a way that it is destroyed by the impact.
  • the consequence of this is that the liquid guiding device 3, when it is detached from the base body 2 of the spray gun 1, is changed in such a way that it can no longer be used a second time.
  • the liquid guiding device 3 thus becomes a genuine disposable item which is only used once in practice because of its predetermined breaking point. This means that after each removal of the liquid guide device 3, only a new liquid guide device 3 can be used, and a clean liquid guide device 3 is therefore always available.
  • the liquid guiding device 3, the sleeve 17, the nozzles 22 and 24 and the air distributors 12, 32 and 27 can be produced as individual parts, preferably made of plastic, by injection molding and can be attached to one another. However, preferably as many of these parts of the liquid guiding device 3 as possible are produced in one piece, preferably by injection molding.
  • the Figures 32 to 35 show how the body 44 of the liquid guiding device 3 can be produced in one piece with a nozzle 71 .
  • the Figures 36 and 37 show that such a nozzle can also have an air distribution disk 72 . This enables a liquid guide device 3 to be produced as inexpensively as possible as a plastic injection-molded part made from a single-component or a multi-component material.
  • a secure seal must be ensured at the transition from the base body of the spray gun to the air distributor disk and from the air distributor disk to the spray agent guide device and also directly from the base body to the spray agent guide device.
  • This seal can be achieved by simply pressing the spray agent guide against an air distribution disc or the base body of a spray gun, since the spray agent guide is made of a softer material and can also be made softer in the transition area by shaping it, for example by providing a fine lip.
  • further connection types with tongue and groove are shown in which the groove can also be arranged at the point at which the tongue is drawn, provided that the tongue is also provided at the opposite point.
  • FIG. 12 shows the detail of the radially projecting element 80 which has an oblique fit or even a tongue and groove connection 81 around its face bearing area to ensure a seal.
  • Details of the connection between an air distributor disk 82, 83 and a spray medium guide device 84, 85 are shown in FIG Figures 40 and 41 .
  • the figure 40 a sealing ring with beveled cone 86 and beveled spring 87 and the figure 41 a sealing ring with a stepped spring 88 which engages in a stepped groove 89.
  • the formation of tongue and groove can thereby, as in figure 40 shown also help to center the parts in a simple manner.
  • Spray gun shown eliminates the bottom pull tab. This makes it easier to seal in this area. Only a small web 90 remains, the underside 91 of which is designed in such a way that the web 90 tapers towards the spray gun in order to center the spray medium guide device 92 when it is inserted into the base body 93 . This web 90 can also be dispensed with in order to facilitate an annular seal.
  • the Figure 43 shows such a continuous seal in the lower area 94, which is only interrupted on the upper side 95, since that is where the spray medium inlet 97 is pushed into the corresponding receptacle 96 of the spray gun 98.
  • shoulder 106 indicated as a circumferential line, which is provided on the inside of the receptacle 96 on the spray gun.
  • This shoulder 106 corresponds to a shoulder 107 on the spray agent guide device 92.
  • This shoulder can serve as a contact surface for a spray agent cup (not shown).
  • shoulder 106 is designed, at least in some areas, as a protruding element which interacts in a form-fitting manner with a corresponding depression on the spray gun.
  • the protruding element can be, for example, a peripheral elevation that interacts with a corresponding groove in the spray gun.
  • other elements such as a pin and a hole can also act as a positive connection.
  • the element can also protrude on the spray gun, while a corresponding depression is provided on the spray agent guide device.
  • a form-fitting or possibly also a force-fitting connection between the spray gun and the spray agent guide device ensures that the liquid guide device is also held in particular against a pull or a pressure in the axial direction of the spray agent inlet 97 .
  • This connection can be the spray agent guide device on the spray medium inlet 97 in such a way that forces acting on the spray medium guide device from a paint cup are already intercepted in the area of the spray medium inlet 97.
  • the figure 44 shows a spray gun 100 with a base body 101 into which an air distribution disk 102 is inserted.
  • a groove 103 is provided in the base body 101, into which a circumferential web 104 of the air distribution disk 102 engages.
  • nozzles 71 with bores 73 with different bore diameters 74 are required. It is therefore proposed to produce spray agent guide devices 3 with different bore diameters 74 and to differentiate spray agent guide devices with different bore diameters 74 in different colors or to produce them from different colored materials, such as in particular different colored plastics.
  • the spray medium guide devices can be produced in the same color and only have nozzles in different colors.
  • These nozzles can either be undetachably connected to the body of the spray agent guide device by means of a press fit, or they can be inserted into the body with an interchangeable thread.
  • a set can be produced with a liquid guide device and several different nozzles 22 that fit into the liquid guide tube 8 of the liquid guide device 3 and have different bore diameters and possibly also different air distribution disks 72 .
  • the different nozzles 22 are produced in different colors or from different colored plastics.
  • the nozzles 22 can also be made of a metal and in a body 44 of a liquid guiding device 3 screwed in or fixed there in some other way. If the nozzle is inseparably connected to the body of the spray agent guide, various spray agent guide devices that have the same body but different nozzles in the color matching the nozzle can be offered as a set.
  • the body of the spray agent guide device is preferably made black and the nozzles have different colors.
  • Spray gun 110 shown has a base body 111, a liquid guide device 112 and an air cap 113.
  • the liquid guide device 112 has an air distribution disk 114 with a cover 115 in which an opening 116 for a paint needle 117 is provided.
  • Underneath is an air opening 118 for the air supplied via the base body 111 to the inner air chamber for conveying the liquid and an air opening 119 as an inlet for the air supplied from the base body 111 to the outer air chamber for shaping the spray jet.
  • the air supplied via the base body 111 is thus sealed at the air openings 118 and 119, which in the exemplary embodiment are designed as small pipe sections which can be inserted into corresponding openings in the base body of the liquid-conducting device.
  • the air cap 113 is slipped over the liquid guide device 112 and screwed to the base body 111 in order to hold the liquid guide device 112 firmly on the base body 111 .
  • FIGS 48 to 51 show an embodiment variant of a spray gun 120 in which an air distribution disk 121 is inserted into the base body 122 of the spray gun 120 and is fastened there by means of screws 123 or in a latching manner.
  • the air distributor disk 123 thus becomes part of the base body 122 and is no longer part of the liquid guide device 124 as in the exemplary embodiments shown above.
  • the air distribution disc 121 has annular sealing ridges 125, 126 and 127 which cooperate with corresponding structure such as a groove 128, 129, 130 on the liquid guide device 124 to define air passages 132,133.
  • the liquid guiding device 124 has a cover 131 which, together with the air distribution disk 121, forms and seals the air channels 132 and 133.
  • the webs 125 to 127 can be arranged either on the air distribution disk 121 or on the cover 131 . It is advantageous if webs made of a harder material such as aluminum or hard plastic interact with grooves made of a softer material in order to ensure a good seal.
  • the webs are preferably arranged on the air distribution disk 121, while the grooves are provided on the cover 131.
  • the seal between a web and a corresponding counter-structure can be improved by a sealing material that is provided on the cover 131 and/or on the air distribution disk 121 in two-component injection molding. It is advantageous if sufficient sealing is achieved simply by the shape of the web and groove.
  • the cover 131 has three grooves 128, 129 and 130, between which two annular surfaces are formed which are elevated relative to the base of the grooves and have air holes which are inserted between the annular webs 125 to 127 in such a way that they seal like a plug.
  • a taper can be provided between the contact surfaces of the groove and web, which facilitates the insertion and ensures a secure seal when the cover 131 is pressed onto the air distribution disk 121 .
  • the spray flows at the spray inlet 134 into the liquid guide device 124 .
  • a wall 137 prevents the spray from reaching the paint needle channel 138 from the channel 135 arranged at an acute angle to the paint needle 136 .
  • the spray agent enters from channel 135 a paint channel 139 running parallel to the paint needle 136, which is also separated from the paint needle channel by the wall 137.
  • the spray agent inlet 134 is in an area surrounded by the base body 122 of the spray gun 120 .
  • the spray agent 150 flowing from the spray agent inlet in a straight line into the liquid guide device 124 and from there in the direction of the paint needle 136 cannot reach the paint needle on this line, but is diverted into a paint channel 139 running parallel to the paint needle, in which it is parallel reaches the paint needle through a wall 137 spaced from the paint needle to the paint nozzle 141.
  • the liquid thus flows in the liquid guide device 124 through the wall 137 separated from the paint needle 136 to the liquid outlet 140, where the liquid exits the liquid guide device 124 and enters the spray nozzle 141.
  • the liquid flows from the paint channel 139, which is radially distant from the paint needle 136, in a keyhole-shaped area to the paint needle 139 and from there concentrically around the paint needle 139 into the nozzle 142.
  • This area can be provided as a keyhole-shaped recess in the liquid guide device 124 and with a keyhole-shaped web 142 on the nozzle 141 cooperate so that the liquid is transferred in a sealed channel from the liquid guide device 124 into the nozzle 141.
  • a sealing surface 146 is provided on the outer circumference of the liquid guide device 124 , which cooperates with a sealing surface 147 arranged in the air cap 143 .
  • a sealing surface 147 arranged in the air cap 143 .
  • an annular seal can be provided in the air cap 143 .
  • a seal which interacts with the air cap 143 can also be provided on the liquid guiding device.
  • the paint needle 136 therefore only comes into contact with the spray 150 after it has exited the paint needle channel 130.
  • the foremost end of the paint needle 136 comes into contact with the spray, which significantly reduces the area of the paint needle to be cleaned .
  • a ring-shaped scraper 149 is provided at the outlet of the paint needle 136 from the liquid guide device 124 Paint needle 136 touches to clean the paint needle.
  • the Figure 52 shows the liquid guide device with an inlet 151 and an outlet 152 as well as a connection 153 to a paint cup 5.
  • the liquid guide tube 8 is located between the inlet 151 and the outlet 152, at least part of which is wetted with paint or liquid during spraying. Since the connection to the paint cup 5 is designed to be airtight, in the present case as a screw cap, the paint cup is closed in an airtight manner when the inlet 151 and the outlet 152 are closed in an airtight manner.
  • the closure device 154 which in the present case is designed as a mandrel 155 with a handle 156, is used for this purpose. The mandrel 154 is designed so long that it can close not only the inlet 151 but also the outlet 152 at the same time when it is arranged in the paint channel 8 .
  • the paint cup is designed as a flow cup 5 with an air flow opening 157, which is arranged in a cover 158 of the cup 5 in the present case and can be opened during the spraying process for the flow of air, while it is closed when the spray is stored.
  • a mandrel 160 with a liquid guiding device 161 shows the Figure 56 .
  • the Mandrel 160 is inserted into the liquid guide device 161 until a stop 162 is reached.
  • a blind hole 163 is provided into which a reduced-diameter portion 164 of the mandrel fits.
  • the mandrel 160 has a structured grip 165 and a nozzle 166 is provided on the liquid guiding device 161 opposite this grip 165 .
  • This nozzle 166 is connected to the liquid guiding device 161 via a fitting 167 .
  • liquid guiding device can cooperate in a sealing manner with an air distribution ring 121, slightly conical areas 168 and a notch 169 are provided on its rear side with 10°, with which the liquid guiding device can engage in depressions in an air distribution ring 121 like a plug.
  • a paint needle cover 170 is provided as part of the liquid guide device, which protrudes into the liquid area 171 as a conically shaped tip towards the nozzle 172 in a conically tapering manner.
  • this tip covers part of the paint needle that is guided through the liquid area, so that only a particularly small area of the paint needle (not shown) comes into contact with the liquid. The result of this is that the paint needle is only wetted as little as possible with liquid after the liquid guide device 173 has been removed from the spray gun body and this area is easily accessible from the outside for cleaning.
  • the transition between the spray agent guide device, the spray gun body and the paint cup is designed in such a way that a screwed-on or attached paint cup can be supported directly on the spray gun body.
  • a force between the paint cup and the spray medium guide device is thus minimized in that the outlet of the paint cup has a contact surface that rests against a contact surface of the spray gun body when the paint cup is placed on.
  • the spray agent guide device is encased and stabilized by the spray gun body at the transition to the paint cup. If the spray guide and paint cup are made of plastic and the spray gun body is made of metal, then the metal portion of the spray gun body supports and protects the spray guide.
  • the spray agent guide device can only be slid so far onto the needle that it is not yet fully in contact with the spray gun body.
  • the tip of the needle acts as a stop and prevents the spray agent guide device from being pushed further towards the spray gun body. Only when the needle is pulled back by means of the handle on the spray gun body does the spray agent guide device slide into its position on the contact surface on the spray gun body.
  • the coating agent guide device can also be pressed against the paint needle, for example with the fastening nut, so that the paint needle is pressed into the body of the spray gun and the spray agent guide device slides into its position on the contact surface on the spray gun body. Then the handle on the spray gun body is pushed back slightly.
  • the contact surface between the paint needle and the spray agent guide device is of particular importance. If the paint needle has a cylindrical section in the area in which it can be arranged in the spray guide device, then the paint needle can be retracted within the spray guide device so that the passage to the nozzle is freed without the conical tip of the paint needle being pulled into the spray guide device will. As a result, only a cylindrical section of the paint needle moves within the spray agent guide device and this prevents spray agent from being drawn into the spray agent guide device between the paint needle and the paint guide device at the front area of the paint needle and wetting the inner surface of the spray agent guide device with spray agent.
  • a wiper can also be provided in the front area of the contact surface between the spray agent guide device and the paint needle.
  • a ring-shaped, inwardly projecting flange is formed on the spray agent guide device, which rests against the paint needle.
  • a circumferential groove can also be provided in the contact area in order to promote a scraping off of paint and to prevent spray adhering to the paint needle from getting into the spray guide device.
  • the space in which the spray agent flows from the paint cup to the nozzle can be increased in that the front area of the spray agent guide device, which extends around the paint needle, is cylindrical on the inside and tapered on the outside towards the nozzle.
  • the figure 61 shows how the paint cup 180 bears against the base body 182 of the spray gun 183 with a circumferential contact surface 181 .
  • a conical area 190 on the outside of the spray agent guide device 191 shows figure 62 . This enlarges the passage 192 for spray.
  • a scraper 200 on the system between the spray medium guide device 201 and the paint needle 202 shows the Figure 63 with the detail 64.
  • a space 203 between the spray medium guide device 201 and the paint needle 202 extends to the stripper 200, which interacts with a small groove 204.
  • An essential aspect of the invention is the airtight seal between the paint guide and the base body or an air distribution disk attached to the base body.
  • an elevation is provided on the color guide device, in which at least one passage is arranged. This elevation fits like a cork in a recess on the base body or a base body attachment. When the color guide device and base body or base body attachment are pushed onto one another, the elevation slides into the depression in such a way that a seal is created between the parts. The elevation thus acts as a seal with a passage. It is understandable here that the elevation is also arranged on the base body or on a base body add-on part can be if a corresponding recess is provided in the color guide.
  • the color guide can be made of a plastic and the base body or the base body add-on part can be made of metal or a plastic that is harder than the plastic of the color guide device.
  • Elevation and depression can each be conical, so that the elevation can slide so far into the depression that it seals well.
  • only one conical insertion area can also be provided, which transitions into a cylindrical area, so that the sealing also takes place at least on a cylindrical contact surface.
  • An embodiment is in the Figures 58 and 59 as well as in the Figures 65 to 67 shown.
  • An almost annular elevation 205 with passages 206 to 216 concentrically encloses another almost annular elevation 217 with passages 218 to 224.
  • the base body attachment 226 provided on the spray gun 225 has corresponding almost annular receptacles 227 and 228.
  • Slightly conical contact surfaces 229 to 232 make it possible that the elevations 205 and 217 slide into the receptacles 227 and 228 and that the contact surfaces 229 to 232 seal, while the passages 206 to 216 and 218 to 224 allow an outwardly sealed passage from the base body of the spray gun 225 to the air cap 233.
  • only one elevation with a corresponding receptacle and individual shaping can also be provided.
  • the coating medium guide device 237 has a shoulder 235 which bears against the base body of the spray gun.
  • Another paragraph 236 serves as a contact surface for a screwed paint cup.
  • These contact surfaces 235 and 236 are arranged at an acute angle to one another, so that the paint guide device 233 can be easily pushed onto the base body of the spray gun 225, while a paint cup can be screwed onto the slightly angled liquid inlet pipe. The paint cup is thus screwed on almost held on the color guide and the color guide is supported when it was pushed onto the base of the paint spray gun, on the base of the paint spray gun on the contact surface formed between the paint guide and the base.

Claims (15)

  1. Pistolet de pulvérisation (1) comportant un corps de base (2), un dispositif conducteur de liquide (3, 237) qui présente un tuyau d'afflux de liquide (10) qui débouche au niveau d'une embouchure (16) dans un tuyau conducteur de liquide (8), et des surfaces de contact (229 à 232) entre le dispositif conducteur de liquide (237) et le corps de base (2) ou une pièce du corps de base (226), caractérisé en ce que, pour la fixation du dispositif conducteur de liquide (3, 237) au corps de base (2) ou à une pièce du corps de base (226) du pistolet de pulvérisation, les surfaces de contact (229 à 232) sont disposées obliquement par rapport à l'orientation du tuyau conducteur de liquide (8) de manière à ce qu'on obtienne au niveau du corps de base (2) un support conique pour le dispositif conducteur de liquide (3, 237).
  2. Pistolet de pulvérisation selon la revendication 1, caractérisé en ce qu 'il est prévu entre les surfaces de contact des passages (206 à 216 et 218 à 224) qui permettent un passage isolé vers l'extérieur du corps de base (2) à un chapeau d'air (233).
  3. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'il présente un écrou de fixation (4) grâce auquel le dispositif conducteur de liquide peut être poussé dans le corps de base, les surfaces de contact obliques du dispositif conducteur de liquide étant poussées dans un cône du corps de base.
  4. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce que deux surfaces de contact (229 à 232) sont disposées de manière conique l'une par rapport à l'autre et que, entre ces surfaces de contact (229, 230 ou 231, 232), est disposé au moins un passage (206 à 216 et 218 à 224), au moins une protubérance étant constituée entre les deux surfaces de contact (229, 230 ou 231, 232) et un creux adapté étant pratiqué dans le corps de base (2) ou dans la pièce de corps de base (226) ou au moins un creux étant pratiqué entre les deux surfaces de contact (229, 230 ou 231, 232) et une protubérance adaptée étant constituée dans le corps de base (2) ou dans la pièce de corps de base (226), au moins un passage étant disposé (206 à 216 et 218 à 224) dans la protubérance.
  5. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'il présente un écrou de fixation (4) et que le corps de base présente un filetage (6) pour fixer le dispositif conducteur de liquide (3) avec l'écrou de fixation (4) au corps de base (2), le filetage (6) présentant une échancrure (7) et le dispositif conducteur de liquide (3) présentant au moins un élément (9) dépassant radialement d'un tuyau conducteur de liquide central (8) et s'ajustant dans l'échancrure (7), de sorte que, après le dévissage de l'écrou de fixation (4), le dispositif conducteur de liquide (3) peut être saisi par l'élément qui dépasse (9) pour extraire le dispositif conducteur de liquide (3) du corps de base (2).
  6. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce que, au niveau du corps de base (2), est vissé un disque répartiteur d'air (12) à l'intérieur duquel le dispositif conducteur de liquide (3) s'étend.
  7. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'il présente un canal à aiguille de peinture (138) pour une aiguille de peinture (136) et, à distance radiale du tuyau conducteur de liquide (8), en plus un canal à peinture (139) pour un moyen de pulvérisation (133).
  8. Pistolet de pulvérisation selon la revendication 7, caractérisé en ce que le canal à peinture (139) s'étend depuis le tuyau d'afflux de liquide (134) à travers une paroi (137) du canal à aiguille de peinture (138) séparément jusqu'à la sortie (140) hors du dispositif conducteur de liquide (124).
  9. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'il comprend une aiguille à peinture (138) qui est disposée dans un canal à aiguille à peinture (138) du dispositif conducteur de liquide, étant disposé, entre le canal à aiguille de peinture (138) et l'aiguille à peinture (130), un racleur (149) qui forme une seule pièce avec le dispositif conducteur de liquide.
  10. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce que le tuyau conducteur de liquide (8) présente face-à-face une entrée (151) et une sortie (152) et un dispositif de fermeture (154), le dispositif de fermeture (154) fermant l'entrée (151) et la sortie (152).
  11. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'un manchon (17) est disposé dans le tuyau conducteur de liquide (8) dans le sens d'écoulement en amont de l'embouchure (16).
  12. Pistolet de pulvérisation selon la revendication 11, caractérisé en ce qu 'un racleur (19, 21) est disposé dans le manchon (17).
  13. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'une buse (22) est disposée dans le tuyau conducteur de liquide (8) dans le sens d'écoulement en aval de l'embouchure (16).
  14. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce que le tuyau conducteur de liquide (8) présente une bride (32) s'étendant radialement vers l'extérieur et dotée de trous de ventilation (33).
  15. Pistolet de pulvérisation selon une des revendications précédentes, caractérisé en ce qu 'il présente un disque répartiteur d'air (121) qui présente des traverses de forme annulaire (125, 126, 127) qui sont conçues pour interagir avec un recouvrement (131) intégré dans un pistolet de pulvérisation pour étanchéifier les canaux à air (132, 133) les uns par rapport aux autres.
EP16721346.1A 2015-03-04 2016-03-04 Pistolet de pulvérisation Active EP3265239B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP24163881.6A EP4364855A2 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation, dispositif de liquide et ensemble comprenant un dispositif de guidage de liquide
EP21194804.7A EP3954468B1 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
DE102015002684 2015-03-04
DE102015002950 2015-03-10
DE102015004252 2015-04-07
DE102015009328 2015-07-22
DE102015013409 2015-10-19
DE102015014083 2015-11-03
DE102015016042 2015-12-10
DE102016001567 2016-02-12
PCT/DE2016/000102 WO2016138888A2 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation, dispositif de guidage de liquide et ensemble équipé d'un dispositif de guidage de liquide

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP24163881.6A Division EP4364855A2 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation, dispositif de liquide et ensemble comprenant un dispositif de guidage de liquide
EP21194804.7A Division EP3954468B1 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation
EP21194804.7A Division-Into EP3954468B1 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation

Publications (2)

Publication Number Publication Date
EP3265239A2 EP3265239A2 (fr) 2018-01-10
EP3265239B1 true EP3265239B1 (fr) 2022-05-04

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EP21194804.7A Active EP3954468B1 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation
EP16721346.1A Active EP3265239B1 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation
EP24163881.6A Pending EP4364855A2 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation, dispositif de liquide et ensemble comprenant un dispositif de guidage de liquide

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EP24163881.6A Pending EP4364855A2 (fr) 2015-03-04 2016-03-04 Pistolet de pulvérisation, dispositif de liquide et ensemble comprenant un dispositif de guidage de liquide

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US (1) US10870120B2 (fr)
EP (3) EP3954468B1 (fr)
JP (1) JP6996984B2 (fr)
CN (1) CN107635671B (fr)
DE (1) DE112016001004A5 (fr)
ES (1) ES2924398T3 (fr)
WO (1) WO2016138888A2 (fr)

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WO2018104870A1 (fr) 2016-12-06 2018-06-14 3M Innovative Properties Company Pistolet de pulvérisation et fixation d'ensemble buse
CA3046733A1 (fr) * 2016-12-12 2018-06-21 3M Innovative Properties Company Pistolet de pulverisation et accessoire formant ensemble buse
US11666934B2 (en) 2016-12-12 2023-06-06 3M Innovative Properties Company Spray gun and nozzle assembly attachment
CA3046732A1 (fr) * 2016-12-12 2018-06-21 3M Innovative Properties Company Pistolet de pulverisation et fixation d'ensemble buse
TWI641426B (zh) * 2017-06-05 2018-11-21 簡道寶 噴槍及其調整閥
USD927645S1 (en) * 2018-10-31 2021-08-10 Carlisle Fluid Technologies (UK) Ltd Spray gun
TR201902651A2 (tr) * 2019-02-21 2020-09-21 Serdar Plastik Sanayi Ve Ticaret Anonim Sirketi 2K Sızdırmaz Püskürtmeli Döner Pervane
USD946114S1 (en) * 2019-06-12 2022-03-15 Sanotech 360, Llc Handheld sprayer
USD968567S1 (en) * 2020-03-18 2022-11-01 Zhejiang Prulde Electric Appliance Co., Ltd. Spray gun
DE102021005362A1 (de) 2021-05-14 2022-11-17 Martin Ruda 1. UG (haftungsbeschränkt). Lackiermittelleiteinrichtung, Spritzpistole und Anordnung
BR112023023661A2 (pt) 2021-05-14 2024-01-30 Martin Ruda 1 Ug Haftungsbeschraenkt Dispositivo condutor de agente de pintura, pistola de pulverização e conjunto
USD980950S1 (en) * 2021-05-18 2023-03-14 Kolektor Mobility d.o.o. Pressure washer

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JP2018507108A (ja) 2018-03-15
US10870120B2 (en) 2020-12-22
EP3954468A1 (fr) 2022-02-16
CN107635671A (zh) 2018-01-26
CN107635671B (zh) 2021-06-08
DE112016001004A5 (de) 2017-11-23
WO2016138888A3 (fr) 2016-11-10
JP6996984B2 (ja) 2022-01-17
WO2016138888A2 (fr) 2016-09-09
ES2924398T3 (es) 2022-10-06
EP4364855A2 (fr) 2024-05-08
US20180050358A1 (en) 2018-02-22
EP3265239A2 (fr) 2018-01-10
EP3954468B1 (fr) 2024-05-15

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