EP0521520B1 - Dispositif de nettoyage à haute pression - Google Patents

Dispositif de nettoyage à haute pression Download PDF

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Publication number
EP0521520B1
EP0521520B1 EP92111325A EP92111325A EP0521520B1 EP 0521520 B1 EP0521520 B1 EP 0521520B1 EP 92111325 A EP92111325 A EP 92111325A EP 92111325 A EP92111325 A EP 92111325A EP 0521520 B1 EP0521520 B1 EP 0521520B1
Authority
EP
European Patent Office
Prior art keywords
pressure
cleaning device
pressure cleaning
lance
cleaning lance
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
EP92111325A
Other languages
German (de)
English (en)
Other versions
EP0521520A1 (fr
Inventor
Josef Kränzle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0521520A1 publication Critical patent/EP0521520A1/fr
Application granted granted Critical
Publication of EP0521520B1 publication Critical patent/EP0521520B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B05B9/0403—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 with pumps for liquids or other fluent material
    • 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
    • B05B9/0403—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 with pumps for liquids or other fluent material
    • B05B9/0426—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 with pumps for liquids or other fluent material with a pump attached to the spray gun or discharge device
    • 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
    • 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
    • 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
    • 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
    • B08B2203/0211—Case coverings

Definitions

  • the invention relates to a high-pressure cleaner with the generic features of claim 1.
  • Such a high-pressure cleaning device with a drive motor and a high-pressure pump and a cleaning lance are known from DE 90 13 677 U1, which are mechanically firmly combined to form a compact unit body that can be handled as a unit.
  • the cleaning lance consists of an actuator, a jet pipe and a jet nozzle.
  • a similar high-pressure cleaner is known from EP 0 312 862 A1, the pump housing of a high-pressure pump with an electric motor arranged thereon being rigidly connected to a pistol grip projecting downwards.
  • the pump housing is also equipped with a valve housing and an attached spray tube and a jet nozzle.
  • these known high-pressure cleaners still have a considerable weight of approximately 10 to 15 kg, provided that no concessions are made to the robustness of the drives and the high-pressure pump. Due to the combination into a compact device body, the high-pressure cleaner can be handled as a unit, and in particular the high-pressure connecting line between the high-pressure pump and the cleaning lance can be dispensed with. Due to the high weight, the handling of the high-pressure cleaner is difficult and tiring, especially during longer cleaning work, since it has to be carried in an ergonomically unfavorable position. This applies in particular to powerful electric drives or internal combustion engines as drives for the mobile use of high-pressure cleaners, since this increases the weight of the high-pressure cleaners. However, such high-pressure cleaners with more than 20 kg can hardly be worn for a long time.
  • the object of the invention is to create a high-pressure cleaner which is easier to handle and enables a more comfortable working posture.
  • the cleaning lance can be coupled or uncoupled to and from the device body of the high-pressure cleaner, there are basically two advantageous operating modes of the high-pressure cleaner.
  • the entire high-pressure cleaner can be used as a portable unit for shorter cleaning work, it being possible to dispense with a separate high-pressure connection hose.
  • the cleaning lance can be uncoupled from the device body in a particularly advantageous manner for work in confined conditions or for longer cleaning work in which carrying the entire unit would be too difficult, so that only this has to be carried while the rest of the device body serves as a standard free-standing device for a high-pressure cleaner.
  • This mode of operation is particularly suitable for working in an unfavorable posture, e.g. B.
  • the device body in a stooped position or, for example, when cleaning facades on scaffolding, the device body can remain as a standing device on the floor while the cleaning lance is uncoupled and thus only this must be carried up on the scaffolding.
  • a standard high-pressure hose serves as the hydraulic connection between the cleaning lance and the high-pressure pump.
  • This positive connection is, for example, as a quick-release screw connection, for. B. with knurled screws so that a simple coupling or uncoupling of the cleaning lance from the device body is possible.
  • a snap connection with interlocking catches can also be provided or the connection can be designed as a plug-in coupling.
  • plug-in couplings in particular for connecting the outlet connection of the high-pressure pump to the inlet connection of the cleaning lance, are made, for example, of fluid lines, for. B. known in the hydraulic connection of agricultural machinery.
  • the outlet connection is in direct connection with the inlet connection of the cleaning lance, i.e. connected without the interposition of a high pressure hose.
  • the handle part is coupled in an advantageous embodiment above the high-pressure pump, so that the handle part closes on the one hand with the upper edge of the drive motor and on the other hand with the front edge of the high-pressure pump, thus resulting in an approximately cuboid, compact design of the portable unit .
  • a shoulder strap is provided on the high-pressure cleaner for carrying, since this causes the weight of the clutched together Pressure washer, especially with unfavorable postures, can be reduced considerably.
  • one end of the shoulder strap is coupled to the device body and the other end to the cleaning lance, so that the center of gravity of the entire portable unit is approximately above the high-pressure pump.
  • a second handle is provided on the cleaning lance to better guide the portable unit toward the jet nozzle.
  • the cleaning lance is coupled together, it is preferably pivotable laterally with the device body, so that a more comfortable working posture is achieved.
  • a high pressure cleaner 1 is shown schematically in side view.
  • the high-pressure cleaner consists on the one hand of a device body 2, which has a drive motor 3 and a high-pressure pump 4 flanged onto it.
  • the drive motor 3 is generally an electric motor, but can also be an internal combustion engine or a battery-operated electric motor.
  • the high-pressure pump 4 is a multi-axial piston pump driven by a swash plate, at the pump head, here the left end, an outlet connection 5 is provided, with which a cleaning lance 6 is connected via a high-pressure hose or directly.
  • the cleaning lance 6 consists of a handle part 7 with an actuating element 8 with which the spraying process of the cleaning liquid escaping under high pressure is controlled via a jet pipe 9 and a jet nozzle 10.
  • the cleaning liquid generally water, is drawn in by the high-pressure pump 4 via a suction line (not shown).
  • the cleaning lance 6 can be coupled with its handle part 7 to the device body 2 to form a portable unit 11, as indicated by the curly bracket, by means of a positive connection 12, as is shown here shortly before the coupling movement is completed.
  • the positive connection 12 can be designed as a screw connection 13 (cf. also FIG. 2) or, as is preferred here, as a latching connection 14, a latching projection 15 being provided here at the rear end of the handle part 7, while a complementary one is provided on the housing body 2 in a housing recess trained recess 16 is provided.
  • the locking projection 15 of the handle part 7 is inserted into the locking recess 16 and then the handle part 7 z. B. screwed to the high pressure pump 4 by means of a knurled nut.
  • a spring-loaded locking device can also be provided.
  • the cleaning lance 6 is locked at the outlet connection 5 of the high-pressure pump 4 by screwing a union nut 17 onto an inlet connection 18 on the cleaning lance 6 becomes.
  • the union nut 17 also assumes a coupling or locking function, so that due to the latching connection 14 and the screw connection 13 in the form of the union nut 17, a detachable, yet stable connection of the cleaning lance 6 on the device body 2 to one robust and portable unit 11 is achieved.
  • housing recesses or pockets are provided in the device body 2 on the connection surface to the handle part 7, so that the cleaning lance 7 together with the screw connection 13 and / or latching connection 14 on the device body 2 is securely anchored.
  • the handle part 7 of the cleaning lance 6 is preferably inserted above the high-pressure pump 4 approximately flush with the top and front edges of the device body 2.
  • coupling and locking devices can also be provided on the side or on the rear of the device body (here on the right of the drive motor 3), so that the handle part 7 can be coupled on the right side of the high-pressure cleaner 1 here in the latter case. This would result in a reduction in the overall length of the high-pressure cleaner 1.
  • a permanently installed connecting line could serve to connect the outlet connection 5 with the inlet connection 18 of the cleaning lance 6 which opens into the handle part 7.
  • a shoulder strap 19 is provided on the high-pressure cleaner 1 and is fastened with fastening points 20, 21.
  • the unit 11 can be carried over a long period of time without great effort.
  • one end of the shoulder strap 19 is arranged on the device body 2, while the other end on the cleaning lance 6 is arranged as far forward as possible, so that the middle of the shoulder strap 19 comes to lie approximately above the high-pressure pump 4.
  • the supporting point is located approximately in the center of gravity of the high-pressure cleaner 1.
  • a further handle 22 can be provided on the cleaning lance 6, by means of which the guidance of the jet pipe 9 and the jet nozzle 10 is improved during cleaning. For more convenient handling, this handle 22 can be folded up from a vertical position shown here to a lateral position, as is indicated by a dash-dotted arrow.
  • FIG. 2 shows a modified embodiment of the high-pressure cleaner 1, with the handle part 7 of the cleaning lance 6 being able to be coupled to the device body 2 in relation to the coupling in the area above the high-pressure pump 4, approximately via the drive motor 3.
  • the handle part 7 is provided on its top with a concave recess 23, so that the cleaning lance 6 can be inserted under a handle 24, which is provided on its underside with a corresponding curvature, up to the upright part of the handle 24 and then with the Knurled screw 13 shown here can be locked to a threaded bore 13a shown in partial section.
  • a dashed locking connection 14 'in the form of a spring-loaded locking bolt In the fully coupled position, the handle 24 and the rear part of the handle part 7 for actuating the valve 8 can be gripped by one hand.
  • the outlet connection 5 of the high-pressure pump 4 is connected to the inlet connection 18 of the cleaning lance 6 via a schematically illustrated high-pressure hose 26, the high-pressure hose 26 being connected to a holder 25 at the front end of the high-pressure pump 4 whose pump head is wound up.
  • the high-pressure cleaner 1 can be operated as a portable unit 11, one hand operating the actuating element 8 and the other hand encompassing the cleaning lance 6.
  • the cleaning lance 6 can be removed from the device body 2 by loosening the connection 12, here the knurled screw 13, and the high-pressure hose 26 can be unwound, as is indicated in broken lines.
  • the device body 2 thus serves as a standing device, while only the cleaning lance 6 has to be carried, so that even narrow cleaning points such.
  • B. the underbody of a motor vehicle is easily accessible.
  • connection for the cleaning liquid, the high-pressure hose 26, does not have to be released. If use as a portable unit 11 with a coupled cleaning lance 6 is then desired again, for example in order to directly regulate the pressure at the high-pressure pump 4 during the spraying process, only the high-pressure hose 26 is wound up on the holder 25 and the positive connection 12 by inserting the Handle part 7 under the handle 24 and locking by means of the knurled screw 13 restored. It should be noted that the shoulder strap 19 shown in FIG. 1 can also be provided in this embodiment.

Claims (11)

  1. Dispositif de nettoyage à haute pression (1), avec un moteur d'entraînement (3) assemblé à un corps d'appareil (2) et avec une pompe à haute pression (4) montée sur ce moteur et pourvue d'un raccord de sortie (5) pour la liaison hydraulique avec une lance de nettoyage (6), constituée d'un élément d'actionnement (8), d'un tuyau de pulvérisation (9) et d'une buse de pulvérisation (10) prévue à l'extrémité avant du tuyau de pulvérisation,
    caractérisé en ce que la lance de nettoyage (6) peut être accouplée au corps d'appareil (2) par un assemblage (12) par complémentarité de forme, afin de former une unité portable (11).
  2. Dispositif de nettoyage à haute pression selon la revendication 1, caractérisé en ce que l'assemblage (12) est réalisé sous la forme d'un assemblage vissé (13).
  3. Dispositif de nettoyage à haute pression selon la revendication 1, caractérisé en ce que l'assemblage (12) est réalisé sous la forme d'un assemblage cranté (14), avec une salle de crantage (15) et un évidement de crantage (16) de configuration complémentaire à cette saillie.
  4. Dispositif de nettoyage à haute pression selon la revendication 2, caractérisé en ce que l'assemblage vissé (13) est réalisé sous la forme d'un écrou-raccord (17) sur le raccord de sortie (5), avec raccordement direct à un raccord d'entrée (18) de la lance de nettoyage (6).
  5. Dispositif de nettoyage à haute pression selon la revendication 1, caractérisé en ce que l'assemblage (12) est réalisé sous la forme d'un accouplement à emboîtement.
  6. Dispositif de nettoyage à haute pression selon l'une des revendications précédentes, caractérisé en ce que la partie de poignée (7) est accouplée au-dessus de la pompe à haute pression (4), en se terminant approximativement à fleur du bord supérieur et avant du corps d'appareil (2).
  7. Dispositif de nettoyage à haute pression selon la revendication 1, caractérisé en ce qu'une bandoulière (19) est prévue pour porter le corps d'appareil (2) conjointement avec la lance de nettoyage (6).
  8. Dispositif de nettoyage à haute pression selon la revendication 7, caractérisé en ce qu'une extrémité de la bandoulière (19) est fixée sur le corps d'appareil (2), et l'autre extrémité est fixée sur la lance de nettoyage (6).
  9. Dispositif de nettoyage à haute pression selon la revendication 8, caractérisé en ce que le milieu des points de fixation (20, 21) de la bandoulière (19) est disposé approximativement au-dessus de la pompe à haute pression (4).
  10. Dispositif de nettoyage à haute pression selon l'une des revendications précédentes, caractérisé en ce qu'une deuxième poignée (22) est prévue sur la lance de nettoyage (6), en étant disposée vers la buse de pulvérisation (10).
  11. Dispositif de nettoyage à haute pression selon la revendication 10, caractérisé en ce que la deuxième poignée (22) peut être pivotée d'une position verticale dans une position écartée sur le côté.
EP92111325A 1991-07-04 1992-07-03 Dispositif de nettoyage à haute pression Expired - Lifetime EP0521520B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122191A DE4122191A1 (de) 1991-07-04 1991-07-04 Hochdruckreiniger
DE4122191 1991-07-04

Publications (2)

Publication Number Publication Date
EP0521520A1 EP0521520A1 (fr) 1993-01-07
EP0521520B1 true EP0521520B1 (fr) 1996-03-13

Family

ID=6435452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111325A Expired - Lifetime EP0521520B1 (fr) 1991-07-04 1992-07-03 Dispositif de nettoyage à haute pression

Country Status (3)

Country Link
EP (1) EP0521520B1 (fr)
AT (1) ATE135267T1 (fr)
DE (2) DE4122191A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7854398B2 (en) 2005-10-26 2010-12-21 Techtronic Outdoor Products Technology Limited Hand held pressure washer
US8444068B2 (en) 2005-10-26 2013-05-21 Techtronic Outdoor Products Technology Limited Dual flow pressure washer

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8425203B2 (en) 2008-04-25 2013-04-23 Techtronic Outdoor Products Technology Limited Portable pressure washer system
DE102008059244A1 (de) * 2008-11-21 2010-05-27 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
WO2010075506A1 (fr) * 2008-12-23 2010-07-01 Smg Brands, Inc. Pulvérisateur
EP3379081B1 (fr) 2015-11-20 2021-04-28 Positec Power Tools (Suzhou) Co., Ltd Machine de nettoyage haute-pression portative
CN108144899A (zh) * 2016-12-06 2018-06-12 苏州宝时得电动工具有限公司 手持式高压清洗机
CN110694977A (zh) * 2018-07-09 2020-01-17 苏州宝时得电动工具有限公司 手持式高压清洗机及清洗设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619326A1 (de) * 1986-06-09 1987-12-10 Josef Kraenzle Pumpeneinheit
DE8713954U1 (fr) * 1987-10-17 1987-12-03 Carl Platz Hochdrucktechnik Gmbh, 6710 Frankenthal, De
DE8815807U1 (fr) * 1988-12-21 1989-11-02 Wap Reinigungssysteme Gmbh & Co, 7919 Bellenberg, De
US4972994A (en) * 1989-07-11 1990-11-27 Shop-Vac Corp. Operational mode conversion for pressure washer spray
DE9013677U1 (fr) * 1990-09-29 1990-12-13 Suttner Gmbh & Co Kg, 4800 Bielefeld, De
DE9100904U1 (fr) * 1991-01-26 1991-04-18 Wap Reinigungssysteme Gmbh & Co, 7919 Bellenberg, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7854398B2 (en) 2005-10-26 2010-12-21 Techtronic Outdoor Products Technology Limited Hand held pressure washer
US8444068B2 (en) 2005-10-26 2013-05-21 Techtronic Outdoor Products Technology Limited Dual flow pressure washer

Also Published As

Publication number Publication date
DE59205647D1 (de) 1996-04-18
EP0521520A1 (fr) 1993-01-07
DE4122191A1 (de) 1993-01-07
ATE135267T1 (de) 1996-03-15

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