WO1994012287A1 - Spray gun - Google Patents

Spray gun Download PDF

Info

Publication number
WO1994012287A1
WO1994012287A1 PCT/EP1993/002938 EP9302938W WO9412287A1 WO 1994012287 A1 WO1994012287 A1 WO 1994012287A1 EP 9302938 W EP9302938 W EP 9302938W WO 9412287 A1 WO9412287 A1 WO 9412287A1
Authority
WO
WIPO (PCT)
Prior art keywords
cup
spray gun
handgrip
spray
lid
Prior art date
Application number
PCT/EP1993/002938
Other languages
French (fr)
Inventor
Paolo Zanetti
Original Assignee
Asturo Mec S.R.L.
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 Asturo Mec S.R.L. filed Critical Asturo Mec S.R.L.
Priority to AU53373/94A priority Critical patent/AU5337394A/en
Publication of WO1994012287A1 publication Critical patent/WO1994012287A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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

Definitions

  • This invention relates to a spray gun.
  • Spray guns comprising a handgrip through which compressed air flows, and a spray head with a central nozzle having a sized orifice and concentric to the feed duct for the liquid to be sprayed.
  • the feed duct has its other end immersed in a vessel or cup operating by suction or by gravity.
  • the spray head is generally fixed to the cup by the feed duct, which is rigid with the lid fitted to the cup.
  • a spray gun comprising a spry head with a nozzle and provided with a handgrip and a cup for containing the liquid to be sprayed, as described in claim 1.
  • the spray gun comprises substantially a handgrip 1 for a spray head 2 fixed to a cup (not shown on the drawing) containing the liquid to be sprayed.
  • a plate 5 fixed to the cup lid 3 by screws 4 is provided with a hole 6 through which an insertion-type connector 7 engagable with the lower end of the handgrip 1 passes.
  • a profiled metal tube 10 is inserted via a connector 9 into the side of the spray head in a position corresponding with the sized-orifice nozzle 8. Said tube 10 passes through the cup lid 3, its other end terminating at the bottom of said cup.
  • a trigger-shaped lever 11 is hinged to the handgrip 1 for controlling the spray.
  • the spray gun of the invention is used as follows: the lid 3 with the plate 5 fixed to it and on which the handgrip 1 is mounted is fitted to the cup containing the liquid to be sprayed.
  • the profiled tube 10 is then inserted into the cup through the lid 3.
  • the lid 3 is provided with a annular gasket, not shown on the drawing.
  • the trigger 11 On operating the trigger 11, the high velocity attained by the compressed air on expanding within the nozzle 8 causes the liquid to be drawn in, atomized and ejected in the form of a mist.
  • the spray gun of the invention is of balanced and hence easily manageable structure because of the substantially coaxial arrangement of the cup and handgrip.
  • the profiled shape of the tube enables the trigger to be operated without creating obstacles to the resting of the fingers thereon.

Landscapes

  • Nozzles (AREA)

Abstract

A spray gun comprising a spray head with a nozzle and provided with a handgrip (1) and a cup for containing the liquid to be sprayed, characterised in that the handgrip (1) is mounted on an intermediate element (3) for its connection to the lid (3) of the cup, from which there emerges a substantially flexible tube (10) inserted into the body of the spray head (2) for transferring the liquid to be sprayed.

Description

SPRAY GUN
This invention relates to a spray gun.
Spray guns are known comprising a handgrip through which compressed air flows, and a spray head with a central nozzle having a sized orifice and concentric to the feed duct for the liquid to be sprayed. The feed duct has its other end immersed in a vessel or cup operating by suction or by gravity. The spray head is generally fixed to the cup by the feed duct, which is rigid with the lid fitted to the cup.
This known fixing system has however certain drawbacks, and in particular:
- a heavy structure due to the substantial size which the feed duct must have in order to withstand the mechanical forces involved in screwing the cup to the lid and its unscrewing therefrom, - an "unbalanced" structure, imposing a certain fatigue on the user during use, arising from the arrangement of the handgrip considerably to the rear of the cup axis. This arrangement is necessary to enable the user to rest his fingers on the control lever, which is interposed between the feed duct and the handgrip.
These drawbacks are obviated according to the invention by a spray gun comprising a spry head with a nozzle and provided with a handgrip and a cup for containing the liquid to be sprayed, as described in claim 1.
The present invention is described in detail hereinafter with reference to the accompanying drawing, representing an exploded perspective view of a spry gun according to the invention.
As can be seen from the figure, the spray gun according to the invention comprises substantially a handgrip 1 for a spray head 2 fixed to a cup (not shown on the drawing) containing the liquid to be sprayed. Specifically, a plate 5 fixed to the cup lid 3 by screws 4 is provided with a hole 6 through which an insertion-type connector 7 engagable with the lower end of the handgrip 1 passes.
A profiled metal tube 10 is inserted via a connector 9 into the side of the spray head in a position corresponding with the sized-orifice nozzle 8. Said tube 10 passes through the cup lid 3, its other end terminating at the bottom of said cup.
A trigger-shaped lever 11 is hinged to the handgrip 1 for controlling the spray.
The spray gun of the invention is used as follows: the lid 3 with the plate 5 fixed to it and on which the handgrip 1 is mounted is fitted to the cup containing the liquid to be sprayed.
The profiled tube 10 is then inserted into the cup through the lid 3. For this purpose the lid 3 is provided with a annular gasket, not shown on the drawing. On operating the trigger 11, the high velocity attained by the compressed air on expanding within the nozzle 8 causes the liquid to be drawn in, atomized and ejected in the form of a mist.
From the aforegoing it is apparent that the spray gun of the invention is of balanced and hence easily manageable structure because of the substantially coaxial arrangement of the cup and handgrip.
In addition the profiled shape of the tube enables the trigger to be operated without creating obstacles to the resting of the fingers thereon.

Claims

- A -C L A I M S
1. A spray gun comprising a spray head with a nozzle and provided with a handgrip (1) and a cup for containing the liquid to be sprayed, characterised in that the handgrip (1) is mounted on an intermediate element (3) for its connection to the lid (3) of the cup, from which there emerges a substantially flexible tube (10) inserted into the body of the spray head (2) for transferring the liquid to be sprayed.
2. A spray gun as claimed in claim 1, characterised in that the intermediate element is formed from a plate (5) fixed to the lid (3) by screws (4) .
3. A spray gun as claimed in claim 1, characterised in that the plate (5) is provided with a hole (6) for the insertion of a connector (7) which engages in the handgrip (1) of the spray head.
4. A spray gun as claimed in claim 1, characterised in that the tube (10) is of metal.
5. A spray gun as claimed in claim 1, characterised in that the tube (10) is applied to the spray head (2) laterally to the spray nozzle.
PCT/EP1993/002938 1992-11-25 1993-10-25 Spray gun WO1994012287A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU53373/94A AU5337394A (en) 1992-11-25 1993-10-25 Spray gun

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVE92U000040 1992-11-25
IT92VE000040U IT229375Y1 (en) 1992-11-25 1992-11-25 AIRBRUSH

Publications (1)

Publication Number Publication Date
WO1994012287A1 true WO1994012287A1 (en) 1994-06-09

Family

ID=11423872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002938 WO1994012287A1 (en) 1992-11-25 1993-10-25 Spray gun

Country Status (3)

Country Link
AU (1) AU5337394A (en)
IT (1) IT229375Y1 (en)
WO (1) WO1994012287A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315600A (en) * 1980-01-17 1982-02-16 Chem-Lawn Corporation Spray gun injector
GB2108868A (en) * 1981-11-04 1983-05-25 Burgess Power Tools Ltd Spray guns
US4433812A (en) * 1980-11-12 1984-02-28 Champion Spark Plug Company Paint spray attachment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315600A (en) * 1980-01-17 1982-02-16 Chem-Lawn Corporation Spray gun injector
US4433812A (en) * 1980-11-12 1984-02-28 Champion Spark Plug Company Paint spray attachment
GB2108868A (en) * 1981-11-04 1983-05-25 Burgess Power Tools Ltd Spray guns

Also Published As

Publication number Publication date
AU5337394A (en) 1994-06-22
ITVE920040V0 (en) 1992-11-25
IT229375Y1 (en) 1998-07-02
ITVE920040U1 (en) 1994-05-25

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