EP0461277B1 - Airless-Sprühgerät - Google Patents

Airless-Sprühgerät Download PDF

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Publication number
EP0461277B1
EP0461277B1 EP19900110969 EP90110969A EP0461277B1 EP 0461277 B1 EP0461277 B1 EP 0461277B1 EP 19900110969 EP19900110969 EP 19900110969 EP 90110969 A EP90110969 A EP 90110969A EP 0461277 B1 EP0461277 B1 EP 0461277B1
Authority
EP
European Patent Office
Prior art keywords
spray
spray head
disposable
handle
pump
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.)
Expired - Lifetime
Application number
EP19900110969
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0461277A1 (de
Inventor
Josef Dipl.-Ing. Gentischer (Fh)
Peter Kwasny
Günter Breitschwerdt
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.)
AUTO-K-LACK PETER KWASNY GMBH & CO.
Original Assignee
Auto-K-Lack Peter Kwasny & Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Auto-K-Lack Peter Kwasny & Co GmbH filed Critical Auto-K-Lack Peter Kwasny & Co GmbH
Priority to DE90110969T priority Critical patent/DE59005131D1/de
Priority to AT90110969T priority patent/ATE103210T1/de
Publication of EP0461277A1 publication Critical patent/EP0461277A1/de
Application granted granted Critical
Publication of EP0461277B1 publication Critical patent/EP0461277B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B05B9/043—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 having pump readily separable from container
    • 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
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
    • B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric

Definitions

  • the invention relates to an airless spray device, in particular for paints, with a container for the medium to be sprayed, a spray head having a pump, a riser pipe protruding into the interior of the container and a drive device for the pump having an electric motor.
  • Disposable airless spray cans of this type are known (DE-U-77 09 303).
  • a major disadvantage of these sprayers is that the spray head with the spray can is an integral disposable part forms. This is a considerable effort, which leads to high costs, especially with a view to the fact that the energy supply of the electric motor, in the form of a battery or an accumulator, must also be integrated into the entire unit, which are also thrown away after only one use and must be disposed of.
  • the energy for spraying the spray medium is not provided by a propellant which is dissolved in the medium to be sprayed (so-called aerosols), since these propellants are environmentally harmful and are fire and explosion hazard.
  • the container is a commercially available disposable spray can with an integrated closure valve
  • the spray head forms a unit with the drive device which can be clamped onto the commercially available disposable spray can and has a handle on which the disposable Aerosol receiving device is articulated, through which the disposable aerosol can is pressed against a trigger pin provided on the spray head, which opens the closure valve and establishes the connection with the pump.
  • the invention thus offers the great advantage that a spray head can be placed on a commercially available disposable spray can and used several times. Nevertheless, there is a firm connection between the spray head and the disposable spray can during spraying. It is also possible to design the spray head differently to adapt to different spray media.
  • the exemplary embodiment according to FIG. 1 has a spray head 1 which is detachably placed on a commercially available disposable spray can 2.
  • the spray head 1 has a housing 3, a pump 4 and the electric motor 5, and a handle 6 which extends downwards parallel to the disposable spray can 2.
  • the pump 4 lies against the contact surfaces 7, 7 'of the housing 3 and has two guide pins 8, 8' which extend through guide openings in the cap 9, which still belongs to the spray head 1; at the end of the guide pins 8, 8 'there are retaining disks 10, 10' so that the cap 9 is held by the guide pins but can be moved along the guide pins.
  • a release sleeve 11 extends through a further opening in the cap.
  • the closure valve 12 integrated with the disposable spray can 2 such that when the disposable spray can 2 is pressed against the spray unit from below, the closure valve 12 is thereby opened and the spray medium through the hollow inner channel of the release sleeve 11 into the suction channel of the pump 4 entry.
  • the outer edge of the cap 9 made of elastic material encompasses the edge 14 of the cap 13, which is part of the disposable spray can 2.
  • the pumping action is generated in that the pump plunger 15 is moved back and forth in the spray direction, which is indicated by the dash-dotted line A.
  • a driver 16 which has a recess 17 between two flanges into which the nose-shaped end of the arm 18 of the deflection piece 20 engages.
  • the deflection piece 20 also has a second arm 19, at the end of which a recess is provided, into which an eccentric 21 projects. This eccentric 21 is driven by the electric motor 5 and performs a circular movement about its axis B.
  • the deflection piece 20 is rotatably mounted on the housing 3 by means of a shaft 22.
  • the shaft 22 extends perpendicular to the axes A, B mentioned, so that the eccentric rotational movement of the eccentric 21 is translated into a back and forth movement of the pump plunger 15. So that the pump plunger 15 is captively in a loose connection with the driver 16, the driver has a mounting element 23 which loosely engages over the flange 24 at the end of the pump plunger 15.
  • the handle 6 is connected to the housing 3 and thus also part of the spray head 1, as already mentioned, on this handle 6 is the receiving device for the disposable spray can 2 formed by the clamping fork 30 and the handle 32 articulated by means of a shaft or a pin 31.
  • the handle 32 is half-shell-shaped and surrounds the handle 6.
  • the handle 32 is supported on the handle 6 by means of a spring 33. So if someone grips the handles 6 and 32 with his hand and presses them together, the spring 33 is compressed. As a result, a switch 34 is actuated, through which a connection of the electric motor 5 to the energy supply unit 35 is established.
  • the electric motor 5 is switched on.
  • the energy supply unit 35 can be formed by batteries, by a rechargeable battery or else by a transformer with a mains connection.
  • the clamping fork 30 has two arms 36, 36 ', which are pushed laterally over the disposable spray can 2 and then clamp them firmly.
  • the two arms 36, 36 'of the clamping fork 30 are connected to one another by a web 27.
  • the upper contact surfaces 38, 38 'of the arms 36, 36' rest against the upper bead 39 of the disposable spray can 2 from below.
  • the bead 39 is further encompassed by a (in plan view) semicircular ring segment 37 which is arranged on the clamping fork 30.
  • the handle 32 of the receiving unit intended for the disposable spray can is designed such that it encompasses the handle 6 of the spray head 1 in the shape of a half shell.
  • the upper and lower stops of the locking cams 40 at the ends of the elongated holes 41 limit the mobility of the receiving unit formed by the fork 30 and the handle 32 relative to the handle 6 and thus relative to the spray head 1.
  • the two outer areas of the half-shell-shaped handle 32 can be slightly widened against each other, so that the receiving device can be moved beyond the ends of the elongated holes 41 relative to the handle 6 of the spray head 1 so far that the disposable spray can 2 is inserted into the clamping fork 30 or - after use.
  • the disposable spray can 2 is inserted into the clamping fork 30 such that the two arms 36, 36 'encompass the disposable spray can 2, the upper contact surfaces 38, 38' of the arms 36, 36 'from below on the bead 39 of the disposable Spray can 2 abut and the bead 39 is encompassed by the ring segment 37 and is fixed in the axial direction. Then the handle 32 is pressed against the handle 6 until the latching cams 40 snap into the elongated holes 41 again. Then the edge 14 of the cap 13 is the Disposable spray can 2 inserted into the cap 9 of the spray head 1. At the same time, the release sleeve 11 sits on the closure valve 12 of the disposable spray can 2.
  • the closure valve 12 is actuated by the release sleeve 11, so that the spray medium, which is located in the disposable spray can 2, by the closure valve 12 and the Trigger sleeve 11 can pass through into the suction channel of the pump 4.
  • the switch 34 is actuated and the pump 4 is thus started.
  • the spring 32 pushes the handle 32 away from the handle 6.
  • the electric motor 5 and with it the pump 4 is switched off again.
  • the closure valve 12 of the disposable spray can 2 can close again.
  • the disposable spray can 2 has, as usual, a riser pipe 50 projecting into the valve 12 from top to bottom. This is provided at its lower end with an L-shaped line piece 51 which has an opening 52 pointing upwards. In this way, a short line piece 53 made of elastic material is in turn attached, so that overall the lower end of the riser pipe 50 has a U-shaped end piece (formed by the parts 51 to 53), which has the upward opening 54 at its free end has, which is formed by the end of the line pieces 53.
  • This opening 54 is closed by a correspondingly designed valve body 60, as soon as the disposable spray can is emptied so far that it only fills the lower sump 70, ie an area with a reduced diameter.
  • the valve body is arranged on a float 65.
  • This float is connected to a guide ring 66. This is displaceable on the riser pipe 50, for example by engaging a web in a groove, that the float 65 always has such an orientation with respect to the opening 54 that the valve body 60 actually hits the opening 54 when the level of the spray medium drops and closes. It is then ensured that no air (or gas) present inside the disposable spray can 2 escapes through the riser 50, which would result in an irregular spraying process and / or droplet formation.
  • FIG. 2 shows a further exemplary embodiment in which the interlocking of the disposable airless spray can 2 with the spray head 1 is solved somewhat differently.
  • the pump 4 is fixed in the housing 2.
  • the suction channel 80 of the pump 4 opens into a slightly conical opening 81 in a coupling piece 82 connected to the pump 4 and made of elastic material, into which, when the handles 32 and 6 are pressed together, the trigger part 83, which is part of the closure valve 12 and is provided with a through-bore, moves into and forms a sealing seat.
  • the disposable spray can no longer needs to be pressurized stand, which must be sufficient to spray the absorbed spray medium.
  • a pressurized inert gas for example nitrogen
  • the disposable spray can 2 is filled with a pressure of 6 to 8 bar, while the pressure generated by the pump 4 is approximately 40 bar.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
EP19900110969 1989-05-11 1990-06-09 Airless-Sprühgerät Expired - Lifetime EP0461277B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE90110969T DE59005131D1 (de) 1990-06-09 1990-06-09 Airless-Sprühgerät.
AT90110969T ATE103210T1 (de) 1990-06-09 1990-06-09 Airless-spruehgeraet.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893915397 DE3915397A1 (de) 1989-05-11 1989-05-11 Airless-spruehgeraet

Publications (2)

Publication Number Publication Date
EP0461277A1 EP0461277A1 (de) 1991-12-18
EP0461277B1 true EP0461277B1 (de) 1994-03-23

Family

ID=6380451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900110969 Expired - Lifetime EP0461277B1 (de) 1989-05-11 1990-06-09 Airless-Sprühgerät

Country Status (2)

Country Link
EP (1) EP0461277B1 (enrdf_load_stackoverflow)
DE (1) DE3915397A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8062264B2 (en) 2005-04-09 2011-11-22 Glaxo Group Limited Fluid dispensing device
US8147461B2 (en) 2004-03-11 2012-04-03 Glaxo Group Limited Fluid dispensing device
US8347879B2 (en) 2002-05-09 2013-01-08 Glaxo Group Limited Fluid dispensing device
US8752543B2 (en) 2003-11-03 2014-06-17 Glaxo Group Limited Fluid dispensing device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6502766B1 (en) 2000-07-24 2003-01-07 The Procter & Gamble Company Liquid sprayers
US6752330B2 (en) 2000-07-24 2004-06-22 The Procter & Gamble Company Liquid sprayers
US6776308B1 (en) 2002-06-12 2004-08-17 Dave D. Davis Apparatus with multiple paint intakes
DE102009013376A1 (de) * 2009-03-09 2010-09-16 Adolf Würth GmbH & Co. KG Sprühpistole mit Vorratsbehälter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900679C (de) * 1951-06-26 1953-12-28 Licentia Gmbh Niederdruckspritzgeraet mit elektromotorisch angetriebenem Geblaeserad
US2803383A (en) * 1956-05-29 1957-08-20 Dickman Benjamin Wire holder for pressure-actuated canisters
CH507027A (de) * 1966-03-07 1971-05-15 Mueller Arthur Halter für Sprühdosen
DE2623324C2 (de) * 1976-05-25 1983-01-05 Wella Ag, 6100 Darmstadt Handgerät zum Versprühen von Flüssigkeit
DE2645661A1 (de) * 1976-10-09 1978-06-22 Schrott Elisabeth Spruehvorrichtung
DE7709303U1 (de) * 1977-03-24 1978-09-21 J. Wagner Gmbh, 7990 Friedrichshafen Haushaltsspruehgeraet
AU513729B2 (en) * 1978-09-22 1980-12-18 Union Carbide Australia Limited Portable spray

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8347879B2 (en) 2002-05-09 2013-01-08 Glaxo Group Limited Fluid dispensing device
US8752543B2 (en) 2003-11-03 2014-06-17 Glaxo Group Limited Fluid dispensing device
US9320862B2 (en) 2003-11-03 2016-04-26 Glaxo Group Limited Fluid dispensing device
US8147461B2 (en) 2004-03-11 2012-04-03 Glaxo Group Limited Fluid dispensing device
US8062264B2 (en) 2005-04-09 2011-11-22 Glaxo Group Limited Fluid dispensing device

Also Published As

Publication number Publication date
EP0461277A1 (de) 1991-12-18
DE3915397C2 (enrdf_load_stackoverflow) 1992-12-17
DE3915397A1 (de) 1990-11-15

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