EP0885661A2 - Sprühpistole mit Schnellkupplung - Google Patents

Sprühpistole mit Schnellkupplung Download PDF

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Publication number
EP0885661A2
EP0885661A2 EP97202634A EP97202634A EP0885661A2 EP 0885661 A2 EP0885661 A2 EP 0885661A2 EP 97202634 A EP97202634 A EP 97202634A EP 97202634 A EP97202634 A EP 97202634A EP 0885661 A2 EP0885661 A2 EP 0885661A2
Authority
EP
European Patent Office
Prior art keywords
hose
gun
spray gun
delivery valve
pressurized fluid
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.)
Ceased
Application number
EP97202634A
Other languages
English (en)
French (fr)
Other versions
EP0885661A3 (de
Inventor
Giuseppe Arsi
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.)
Interpump Group SpA
Original Assignee
Interpump Group SpA
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 Interpump Group SpA filed Critical Interpump Group SpA
Publication of EP0885661A2 publication Critical patent/EP0885661A2/de
Publication of EP0885661A3 publication Critical patent/EP0885661A3/de
Ceased 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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3066—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the valve element being at least partially hollow and liquid passing through it when the valve is opened
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B05B12/0022—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement
    • B05B12/0024—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position
    • B05B12/0026—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position to inhibit delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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

  • This invention relates to spray guns for jet washers.
  • Guns of this type are used for delivering water under pressure and are connected to the jet washer by a feed hose.
  • This type of gun generally consists of two plastic half-casings provided with suitable seats accommodating a valve body provided with a valve seat against which the valving element acts, this being controlled by the operator by means of a suitable lever, to deliver the pressurized fluid.
  • valve feed and delivery conduits are connected respectively to a feed hose, and to a delivery nozzle or to a delivery lance.
  • connection between the valve body and the hose is made using a threaded coupling, one end of which is screwed into the threaded feed conduit of the valve body, and on the other end of which there is screwed the rigid metal connector with which the hose is provided.
  • This type of connection does not enable the hose to rotate about its longitudinal axis, and this can give rise to problems in that during the use of the jet washer the hose can twist about itself to undergo damage or at least to exert a twisting moment on the gun, which has to be counteracted by the operator.
  • spray guns are known in which the connection between the valve body and the hose is made by a sealed double coupling which is inserted into the feed conduit of the spray gun valve body and into which there is inserted the metal connector of the high pressure hose.
  • the end part of the hose metal connector is sometimes widened to rest on a thrust bearing supported by an appropriate seat in the casing.
  • the object of the invention is to overcome the stated drawbacks by providing a spray gun which enables the hose to be fitted into the spray gun without having to open its casing, within the context of a simple construction which is practical and reliable in terms of the seal between the parts concerned.
  • Figure 1 shows one of the two half-casings 1, each provided with suitable seats for receiving the pressurized liquid ducting means, which become locked in position when the two half-casings are closed and fixed together by screws.
  • connection element 2 for a possible external delivery lance and fitted into a double socket coupling 3, the other end of which represents the valve seat for the valving element 4.
  • the valving element is controlled for pressurized fluid delivery by the lever 5.
  • the pressurized liquid is fed into the valving element 4 via the profiled plastic tube 6 which has two socket-shaped ends, into one of which the valving element 4 is inserted, while into the other there is inserted one end of the double seal coupling 7.
  • the metal connector 8 of the high pressure hose 9 is of cylindrical section and has an intermediate slot for receiving the stop 10.
  • the stop 10 is fork-shaped (see Figure 2) and forms a constraint for the metal connector 8 of the hose 9 such as to prevent its
  • the purpose of the stop 10 is therefore to prevent the metal connector 8 withdrawing from the double seal coupling 7 under the high pressure in play during the operation of the jet washer, but without preventing rotation of the hose 9 at high pressure, so avoiding undesirable twisting of the hose under high pressure.
  • Figure 3 also shows a known tubular protection element 12 of rigid plastic construction, the purpose of which is to prevent excessive bending of the hose 9.
  • the same figure also shows a safety hook 13, the purpose of which is to prevent undesired delivery of pressurized fluid by locking the movement of the lever 5.

Landscapes

  • Nozzles (AREA)
  • Coating Apparatus (AREA)
EP97202634A 1997-05-22 1997-08-28 Sprühpistole mit Schnellkupplung Ceased EP0885661A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1997RE000027U IT238406Y1 (it) 1997-05-22 1997-05-22 Pistola spruzzatrice con innesto rapido
ITRE970027U 1997-05-22

Publications (2)

Publication Number Publication Date
EP0885661A2 true EP0885661A2 (de) 1998-12-23
EP0885661A3 EP0885661A3 (de) 2000-05-10

Family

ID=11399032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202634A Ceased EP0885661A3 (de) 1997-05-22 1997-08-28 Sprühpistole mit Schnellkupplung

Country Status (3)

Country Link
EP (1) EP0885661A3 (de)
DE (1) DE29716004U1 (de)
IT (1) IT238406Y1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1084762A2 (de) 1999-09-17 2001-03-21 Alfred Kärcher GmbH & Co. Handspritzpistole für ein Hochdruckreinigungsgerät
WO2014201781A1 (zh) * 2013-06-18 2014-12-24 Yang Mingjun 具有快换结构的吹气枪

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005011557U1 (de) * 2005-07-22 2005-09-29 Hammelmann Maschinenfabrik Gmbh Hochdruckspritzpistole
DE102006013005A1 (de) * 2006-03-22 2007-09-27 Alfred Kärcher Gmbh & Co. Kg Hochdruckspritzpistole

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973791A (en) * 1974-10-09 1976-08-10 Hps Company, Inc. Safety coupling device
DE4035008C2 (de) * 1990-02-28 1993-10-28 Suttner Gmbh & Co Kg Schlauchkupplung für Hochdruckschläuche
DE19617417A1 (de) * 1996-05-01 1997-11-06 Kaercher Gmbh & Co Alfred Handspritzpistole für ein Hochdruckreinigungsgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1084762A2 (de) 1999-09-17 2001-03-21 Alfred Kärcher GmbH & Co. Handspritzpistole für ein Hochdruckreinigungsgerät
EP1084762A3 (de) * 1999-09-17 2002-05-02 Alfred Kärcher GmbH & Co. Handspritzpistole für ein Hochdruckreinigungsgerät
WO2014201781A1 (zh) * 2013-06-18 2014-12-24 Yang Mingjun 具有快换结构的吹气枪

Also Published As

Publication number Publication date
DE29716004U1 (de) 1997-10-23
ITRE970027U1 (it) 1998-11-22
IT238406Y1 (it) 2000-11-13
EP0885661A3 (de) 2000-05-10

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