EP0885661A2 - Pistolet de pulvérisation à raccordement rapide - Google Patents
Pistolet de pulvérisation à raccordement rapide Download PDFInfo
- 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
Links
Images
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)
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 (fr) | 1998-12-23 |
EP0885661A3 EP0885661A3 (fr) | 2000-05-10 |
Family
ID=11399032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97202634A Ceased EP0885661A3 (fr) | 1997-05-22 | 1997-08-28 | Pistolet de pulvérisation à raccordement rapide |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0885661A3 (fr) |
DE (1) | DE29716004U1 (fr) |
IT (1) | IT238406Y1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1084762A2 (fr) | 1999-09-17 | 2001-03-21 | Alfred Kärcher GmbH & Co. | Pistolet de pulvérisation à main pour appareil de nettoyage haute pression |
WO2014201781A1 (fr) * | 2013-06-18 | 2014-12-24 | Yang Mingjun | Soufflette à air comportant une structure à remplacement rapide |
Families Citing this family (2)
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)
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 |
-
1997
- 1997-05-22 IT IT1997RE000027U patent/IT238406Y1/it active IP Right Grant
- 1997-08-28 EP EP97202634A patent/EP0885661A3/fr not_active Ceased
- 1997-09-06 DE DE29716004U patent/DE29716004U1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
None |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1084762A2 (fr) | 1999-09-17 | 2001-03-21 | Alfred Kärcher GmbH & Co. | Pistolet de pulvérisation à main pour appareil de nettoyage haute pression |
EP1084762A3 (fr) * | 1999-09-17 | 2002-05-02 | Alfred Kärcher GmbH & Co. | Pistolet de pulvérisation à main pour appareil de nettoyage haute pression |
WO2014201781A1 (fr) * | 2013-06-18 | 2014-12-24 | Yang Mingjun | Soufflette à air comportant une structure à remplacement rapide |
Also Published As
Publication number | Publication date |
---|---|
ITRE970027U1 (it) | 1998-11-22 |
DE29716004U1 (de) | 1997-10-23 |
IT238406Y1 (it) | 2000-11-13 |
EP0885661A3 (fr) | 2000-05-10 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7B 05B 15/06 A, 7B 05B 1/30 B, 7B 05B 9/01 B, 7F 16L 37/14 B |
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17P | Request for examination filed |
Effective date: 20001004 |
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AKX | Designation fees paid |
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AXX | Extension fees paid |
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17Q | First examination report despatched |
Effective date: 20010801 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20021229 |