EP1713594A1 - Handspritzpistole für ein hochdruckreinigungsgerät - Google Patents
Handspritzpistole für ein hochdruckreinigungsgerätInfo
- Publication number
- EP1713594A1 EP1713594A1 EP05707313A EP05707313A EP1713594A1 EP 1713594 A1 EP1713594 A1 EP 1713594A1 EP 05707313 A EP05707313 A EP 05707313A EP 05707313 A EP05707313 A EP 05707313A EP 1713594 A1 EP1713594 A1 EP 1713594A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- spray gun
- pressure cleaning
- cleaning device
- hand
- 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.)
- Withdrawn
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
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
- B08B3/028—Spray guns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0247—Hose joints, e.g. quick joints, rotating joints
Definitions
- the invention relates to a hand-held spray gun for a high-pressure cleaning device, with a pipe section made of plastic, which has a liquid channel, a closing device, a supply area for the liquid to the closing device and an area of the liquid channel downstream of the closing device.
- a high-pressure cleaning device generally consists of an electric or gasoline-driven pump with which the liquid is put under high pressure and is dispensed onto the surface to be cleaned via a liquid dispenser.
- the liquid dispensing device often comprises a manual spray gun as described at the beginning.
- Handheld spray guns of this type are used in high-pressure cleaning devices to regulate the delivery quantity, in particular to interrupt the flow of the liquid.
- the pump of the high-pressure cleaning device continues to operate in some cases and this can result in considerable pressure increases in the area between the pressure outlet of the pump of the high-pressure cleaning device and the locking device. This creates high pressure peaks in the pipe section of such a hand-held spray gun upstream of the locking device in the feed area, so that there is a risk that the feed area of the pipe section in particular is exposed to increased loads.
- the object and the aim of the invention are to produce a hand-held spray gun with a one-piece tube piece made of plastic, in which an inexpensive plastic can be used.
- a hand spray gun with the features of the current claim 1 is proposed.
- a sleeve which consists of a more resistant material than the raw piece, is pushed onto the tubular feed area of the central molded part, it is achieved that the entire tubular piece is not to be produced from the required more resistant plastic, but that it is sufficient to make the tubular piece from one To produce plastic with less resistance to pressure loads and to reinforce it with an additional sleeve only in the particularly pressure-stressed areas upstream of the closing valve. In this way, sufficient strength is achieved in the particularly stressed area of the pipe section against the special pressure loads after the closing device has been closed.
- the sleeve can be manufactured from plastic in a particularly inexpensive manner.
- a particularly simple assembly of the hand-held spray gun according to the invention is obtained if projections for holding the pushed-on sleeve are provided on the feed area of the blank.
- a holder can be provided in a particularly simple manner if the outer diameter of the tubular feed region increases from the feed side, so that the sleeve can be pushed on and clamped in its end position.
- a simple pushing on during assembly results if longitudinal ribs projecting in sections on the circumference of the tubular feed area are provided, so that the pushed-on sleeve is held by clamping these ribs.
- Optimal durability is achieved in that the sleeve completely encloses the feed area up to the height of the closing device, so that all areas detected by the high pressure upstream of the closing device experience the desired reinforcement.
- An additional advantage of the hand-held spray gun according to the invention is that, even in the particularly stressed area upstream of the closing device, the tube section in the feed area can be made thin-walled and thus saves material.
- the sleeve can consist of a simple tube processing, for the manufacture of which a commercially available tube with a suitable inside and outside diameter is divided into the required sections by simply cutting to length. In this way, the sleeves can be manufactured particularly inexpensively.
- the manual operating lever has a U-shaped cross-section in its grip area, the legs of the U being at a greater distance than the diameter of the sleeve, the handle can be retracted so far when the manual lever is pulled that the two U-legs of the handle hold the Enclose sleeve. The handle is also guided when the U-leg touches the outer contour of the sleeve. This increases the handling safety of the hand spray gun.
- FIG. 1 A cross section through a hand spray gun according to the invention.
- Figure 2 The side view of a pipe piece according to the invention without a sleeve pushed on.
- Figure 3 A cross section through an inventive pipe piece with a handle in the closed state.
- Figure 4 A cross section through a pipe section according to the invention with a handle in the open state with the actuating lever pulled.
- the hand spray gun consists of a pipe section (1) made of plastic with a liquid channel (2).
- the high-pressure liquid is supplied to the liquid channel (2) via a high-pressure hose (3) from the high-pressure pump, which is not yet shown here, and is conducted via the supply area (4) with the closing device (5) open, through an area (6) downstream of the closing device and through a pipe (7) connected to the pipe section (1) to a further delivery device (not shown here), for example a high pressure nozzle for the high pressure liquid.
- the high-pressure hose (3) has a high-pressure coupling (8) at its end, which is inserted with a plug nipple (9) into the tubular feed area (4) of the liquid channel and fastened with a U-shaped plug clamp (10).
- the locking device. (5) consists of a valve body (11) with an actuating rod (12) which is led out of the pipe section (1) and moved by the manual actuating lever (13).
- the closing device When the closing device is closed, the valve body (11) is pressed against a valve seat by spring force and thus closes the liquid channel.
- the operating rod is moved by the manual operating lever (13) and the valve body (11) is thus lifted from its seat, so that the liquid can flow off to the liquid dispensing device.
- the valve body After releasing the manual control lever (15), the valve body is pressed against its seat by spring force and closes the passage through the liquid.
- the pump After the closing device (5) has been closed, the pump does not switch off immediately, but there is an increase in pressure in the liquid channel upstream of the closing device (5).
- the resulting forces place a heavy load on the pipe section (1), which is made entirely of plastic, in its area upstream of the closing device (5).
- the tube section is tubular in its feed area (4) and a sleeve (14) made of metal is slid onto this tubular feed area (4). This sleeve absorbs the high pressure forces that occur after the closing device is closed and thus protects the pipe section (1) against destruction.
- the pipe section (1) On the pipe section (1) in its feed area (4) upstream of the closing device (5), approximately at the level of the closing device, projecting longitudinal ribs (15) on which the pushed-on sleeve (14) is held by jamming.
- the material of the sleeve (14) is more resistant than the plastic material from which the pipe section (1) is made.
- the pushed-on sleeve (14) consists of stainless steel in the described embodiment.
- the housing (16) of the hand spray gun according to the invention consists of two half-shells. For assembly, the manual control lever (13) is first inserted into an open half-shell (17). Then the pipe section (1) is inserted, with the locking device (5) and the sleeve (14) pushed in from the feed area.
- the manual actuation lever (13) has a U-shaped cross section.
- the illustration in FIG. 3 shows the position when the handle is released and the locking device is closed.
- the handle can be pulled so far in the pulled position that the lateral legs (18, 19) grip around the sleeve (14) or are guided by this sleeve (14).
Landscapes
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004006592A DE102004006592B3 (de) | 2004-02-10 | 2004-02-10 | Handspritzpistole für ein Hochdruckreinigungsgerät |
PCT/EP2005/001351 WO2005077544A1 (de) | 2004-02-10 | 2005-02-10 | Handspritzpistole für ein hochdruckreinigungsgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1713594A1 true EP1713594A1 (de) | 2006-10-25 |
Family
ID=34853420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05707313A Withdrawn EP1713594A1 (de) | 2004-02-10 | 2005-02-10 | Handspritzpistole für ein hochdruckreinigungsgerät |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1713594A1 (de) |
CN (1) | CN101001700A (de) |
DE (1) | DE102004006592B3 (de) |
WO (1) | WO2005077544A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1996337A1 (de) * | 2006-03-22 | 2008-12-03 | Alfred Kärcher GmbH & Co. KG | Hochdruckspritzpistole für ein hochdruckreinigungsgerät |
CN104797345B (zh) * | 2012-11-21 | 2016-12-14 | 阿尔弗雷德·凯驰两合公司 | 高压喷枪 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646970A (en) * | 1984-05-18 | 1987-03-03 | The United States Of America As Represented By The Secretary Of The Army | Hand-held washing device |
DE3720241C2 (de) * | 1986-09-26 | 1994-09-22 | Wolfgang Suttner | Ventilpistole für ein Hochdruckreinigungsgerät |
DE9218416U1 (de) * | 1992-10-23 | 1994-03-03 | Alfred Kärcher GmbH & Co, 71364 Winnenden | Hochdruckreinigungsgerät |
DE9316533U1 (de) * | 1993-10-28 | 1994-01-27 | Kränzle, Josef, 89257 Illertissen | Spritzpistole für Hochdruckreiniger |
CH688080A5 (de) * | 1994-09-29 | 1997-05-15 | Kwc Ag | Brause mit einem Handgriff und einem mittels eines Handhebels betaetigbaren Absperrorgan. |
DE20001101U1 (de) * | 2000-01-22 | 2000-03-23 | Alfred Kärcher GmbH & Co, 71364 Winnenden | Strahlrohr für ein Hochdruckreinigungsgerät |
US7185243B1 (en) * | 2001-06-04 | 2007-02-27 | Lsi Logic Corporation | Testing implementation suitable for built-in self-repair (BISR) memories |
-
2004
- 2004-02-10 DE DE102004006592A patent/DE102004006592B3/de not_active Expired - Fee Related
-
2005
- 2005-02-10 CN CNA2005800044973A patent/CN101001700A/zh active Pending
- 2005-02-10 WO PCT/EP2005/001351 patent/WO2005077544A1/de active Application Filing
- 2005-02-10 EP EP05707313A patent/EP1713594A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2005077544A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004006592B3 (de) | 2005-11-10 |
WO2005077544A1 (de) | 2005-08-25 |
CN101001700A (zh) | 2007-07-18 |
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