EP2247393B1 - Tête de nettoyage de surface - Google Patents

Tête de nettoyage de surface Download PDF

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Publication number
EP2247393B1
EP2247393B1 EP09711740A EP09711740A EP2247393B1 EP 2247393 B1 EP2247393 B1 EP 2247393B1 EP 09711740 A EP09711740 A EP 09711740A EP 09711740 A EP09711740 A EP 09711740A EP 2247393 B1 EP2247393 B1 EP 2247393B1
Authority
EP
European Patent Office
Prior art keywords
cleaning head
surface cleaning
nozzle
accordance
impact element
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.)
Active
Application number
EP09711740A
Other languages
German (de)
English (en)
Other versions
EP2247393A1 (fr
Inventor
Vitali Fischer
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Priority to PL09711740T priority Critical patent/PL2247393T3/pl
Publication of EP2247393A1 publication Critical patent/EP2247393A1/fr
Application granted granted Critical
Publication of EP2247393B1 publication Critical patent/EP2247393B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
    • 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
    • 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
    • B08B2203/0229—Suction chambers for aspirating the sprayed liquid

Definitions

  • the invention relates to a surface cleaning head having the features of the preamble of claim 1.
  • Surface cleaning heads with a hood-shaped, one-sided open housing, in which at least one spray arm is rotatably mounted with a nozzle about a rotation axis, wherein the nozzle is acted upon with pressurized cleaning liquid and rotates together with the spray arm about the rotation axis for acting on the surface to be cleaned a liquid jet are from the German patent DE 102 06 013 C1 known. They are particularly suitable for cleaning hard surfaces, such as stone or wooden terraces, garage entrances and garage doors. To clean the hard surfaces, the pressure line of a high-pressure cleaning device can be connected to the surface cleaning head. Pressurized cleaning liquid can thus be supplied to the nozzle arranged on the at least one spray arm.
  • the cleaning liquid can be applied to the surface to be cleaned.
  • the nozzle undergoes a recoil, under the effect of the spray arm is rotated about the rotation axis in rotation. This makes it possible to apply a relatively large area within a short time with cleaning liquid.
  • at least two spray arms are used, each carrying a nozzle, wherein all nozzles are acted upon simultaneously with pressurized cleaning liquid.
  • the nozzles perform a circular motion during operation of the surface cleaning head. Although this makes it possible to clean a relatively large area within a short time, the cleaning of corner areas of a surface is made more difficult.
  • Object of the present invention is to develop a generic surface cleaning head such that even corner areas of the surface to be cleaned in a simple manner with pressurized cleaning liquid can be acted upon without the risk that the surface cleaning head due to the repulsive force of the additional nozzle of the surface to be cleaned takes off.
  • the surface cleaning head In addition to the at least one nozzle, which is arranged on a spray arm and rotates together with the spray arm about the rotation axis, the surface cleaning head according to the invention at least one rotatably held additional nozzle is used, which is associated with a baffle element.
  • the additional nozzle With the help of the additional nozzle, the user can apply a specific area of the surface to be cleaned, in particular a corner area, specifically with cleaning liquid.
  • the liquid jet discharged from the auxiliary nozzle partly hits the surface to be cleaned outside the circular area defined by the nozzle rotating together with the respective spray arm, partly it strikes a baffle element associated with the auxiliary nozzle.
  • the impact of cleaning liquid on the impact element has the consequence that the impact element with a force in the direction of the to be cleaned Surface is applied.
  • This force can be transmitted from the baffle to the housing of the surface cleaning head.
  • the surface cleaning head experiences a force in the direction of the surface to be cleaned. This force is opposite to the recoil force exerted by the auxiliary nozzle. It is thus avoided in the delivery of cleaning fluid through the additional nozzle that the surface cleaning head lifts off due to the repulsive force of the auxiliary nozzle of the surface to be cleaned.
  • the surface cleaning head according to the invention is thus characterized by the fact that even corner areas can be reliably cleaned.
  • the surface cleaning head on one or more non-rotatable additional nozzles At least one additional nozzle is associated with a baffle element, so that the force exerted by the auxiliary nozzle upon delivery of cleaning liquid to the housing repulsive force is at least partially compensated by a force exerted by the cleaning liquid on the baffle element counterforce and therefore there is no danger that the surface cleaning head raised by the recoil force becomes.
  • at least one additional nozzle with an associated baffle element at least one additional nozzle can still be used, which is assigned no baffle element. It can also be provided that at least one additional nozzle are assigned a plurality of impact elements.
  • the nozzles held on a rotating spray arm can be acted upon simultaneously with the at least one additional nozzle with pressurized cleaning liquid, so that all nozzles of the surface cleaning head simultaneously direct a liquid jet onto the surface to be cleaned.
  • the surface cleaning head has a switching device, with the aid of either the together with a spray arm rotating nozzles and / or the at least one additional nozzle can be acted upon with cleaning liquid.
  • corner regions of the surface to be cleaned can be specifically applied with cleaning liquid from an additional nozzle.
  • the switching device may comprise at least one actuating member, for example at least one foot pedal, with the aid of which the user can select the at least one additional nozzle and / or the rotating nozzles for cleaning the surface. It can be provided, for example, that the switching device has a first switching position, in which only the rotating together with a spray nozzle nozzles are acted upon with pressurized cleaning liquid, and a second switching position, in which only the at least one additional nozzle pressurized cleaning fluid acts becomes. It is advantageous if the switching device additionally has a third switching position in which both the nozzles rotating together with a spray arm and the at least one additional nozzle are supplied with cleaning liquid.
  • the respective switching position can be selected by the user by means of the at least one, preferably movably held on the housing actuator.
  • the at least one additional nozzle associated baffle element which is connected to the housing, is aligned in an advantageous embodiment perpendicular to the axis of rotation of the spray arm. In such an orientation, the preferably plate-shaped or bar-shaped baffle element runs essentially parallel to the surface to be cleaned. If the baffle element is subjected to pressurized cleaning fluid, which is discharged from the associated additional nozzle, this has a maximum counterforce to the recoil force caused by the additional nozzle when the baffle element is oriented perpendicular to the axis of rotation.
  • the impact element projects laterally into the jet area of the cleaning liquid discharged from the associated auxiliary nozzle.
  • the jet region is understood to mean the angular region over which the cleaning liquid discharged from the auxiliary nozzle is distributed.
  • the beam area may be, for example, at least 40 °, preferably 50 ° to 60 °.
  • the impact element protrudes laterally into the jet area, so that part of the cleaning liquid discharged by the additional nozzle is captured by the impact element. Starting from the auxiliary nozzle, this part of the cleaning fluid strikes the impact element immediately and then drips down from it.
  • the impact element protrudes into the middle of the jet area of the cleaning liquid discharged from the auxiliary nozzle. It is favorable if a free end region of the impact element is arranged approximately at the level of the longitudinal axis of the associated additional nozzle.
  • the impact element protrudes into the jet area on the side of the jet area facing the spray arm.
  • the impact element is arranged in such a configuration on the side of the beam region which is assigned to the at least one, about the rotation axis rotating spray arm.
  • the at least one, around the rotation axis rotating spray arm defines a spray area, which is surrounded by an annular cylinder wall, on the outside of a Ansatztell is attached, which extends over a portion of the outer circumference of the cylinder wall and together with the cylinder wall an additional space defined, in which at least the outlet opening of an additional nozzle and at a distance to this the associated impact element are arranged.
  • the interior of the housing is subdivided into an area which is surrounded by the cylinder wall and receives at least one spray arm, and an area which accommodates at least the outlet opening of an additional nozzle as well as the impact element associated with this additional nozzle. It can be provided that the entire auxiliary nozzle is positioned in the additional space.
  • only one end region of the additional nozzle, which has its outlet opening dips into the additional space.
  • the attachment part is configured V-shaped in plan view.
  • the additional space defined by the attachment part is formed in such an embodiment in the plan view substantially triangular and has an arcuate base side, which is formed by the cylinder wall surrounding the spray area, and two sides formed by the attachment part, which are preferably curved convexly or concavely.
  • the triangular configuration facilitates the cleaning of corner areas of a surface.
  • the baffle element is held on the outside of the cylinder wall facing away from the spray arm.
  • the baffle element is integrally connected to the cylinder wall.
  • the baffle element is designed plate-shaped or web-shaped.
  • the cylinder wall and the attachment part preferably carry a splash guard at their free edges.
  • a splash guard for example, a bristle strip can be used or a spray lip made of an elastic material.
  • At least one additional nozzle is preferably designed as a spray nozzle. However, it is also possible to use a flat jet nozzle or a rotor nozzle.
  • the baffle element has a reinforcing rib, so that it can withstand relatively large forces.
  • the reinforcing rib is preferably arranged on the upper side of the impact element of the baffle plate facing the associated additional nozzle.
  • an inventive surface cleaning head 10 is shown schematically with a hood-shaped, one-sided open housing 11, which has a housing lower part 12 and a housing upper part 13.
  • the lower housing part 12 comprises an annular, self-contained in the plan view cylinder wall 15 which projects from an intermediate wall 16 down and carries at its free edge 17 a circumferential splash guard 18.
  • the lower housing part 12 also comprises an externally attached to the cylinder wall 15 attachment portion 20 which is formed in plan view substantially V-shaped with a first leg 21 and a second leg 22 which define a housing tip 23 and at its lower free edge 24 also wear a splash guard 25.
  • the circumferential cylinder wall 15 defines in combination with the intermediate wall 16 a spray chamber 27 of the housing 11, and the attachment part 20 defines in combination with the region of the cylinder wall 15 covered by the attachment part 20 an additional space 28 of the housing 11.
  • the upper housing part 13 comprises a cover 30 which extends in the longitudinal direction of the surface cleaning head 10 practically over the entire length of the lower housing part 12 into the region of the housing tip 23, but only across a transversely to the longitudinal extent of the surface cleaning head 10 Part of the lower housing part 12 extends.
  • the upper housing part 13 comprises two arcuate handles 31, 32, which are integrally connected to the cover 30 and can be grasped by the user by hand.
  • the cover 30, in combination with the area of the intermediate wall 16 covered by the cover 30, defines a distribution chamber 34 of the housing 11.
  • a central distribution part 37 is arranged, into which a supply pipe 38 opens, which is aligned around a pipe axis 39 Swivel axis 40 is pivotally mounted in the distributor part 37.
  • the supply pipe 38 carries a connecting element 42, so that a pressure line, known per se and therefore not shown in the drawing, of a high-pressure cleaning device can be connected to the supply pipe 38.
  • the distributor part 37 is connected via a first supply line 45 with two diametrically opposed spray arms 47, 48 in fluid communication, each having a flow channel 49 and 50 and carry at its free end a nozzle 52 and 53, respectively.
  • the nozzles are acted upon by the supply pipe 38 and the distributor part 37 and the subsequent supply line 37 first supply line 45 with pressurized cleaning liquid and produce an obliquely downwardly directed liquid jet of a cleaning liquid, the exit from the nozzles 52, 53 by reaction forces exert a torque on the spray arms 47, 48 and thereby rotate them.
  • the axis of rotation 55 is aligned coaxially with the longitudinal axis of the first supply line 45.
  • a second supply line 57 runs within the distribution chamber 34, which enters the additional space 28 on the upper side and carries an additional nozzle 60 at its free end.
  • the additional nozzle 60 is formed in the form of a spray nozzle and, in contrast to the rotating nozzles 52 and 53 held stationary on the housing 11. From the additional nozzle 60, pressurized cleaning fluid can be dispensed, which is located in an in FIG. 2 schematically illustrated beam area 61 distributed.
  • the supply of cleaning liquid from the supply pipe 38 via the distributor part 37 takes place either only to the respectively arranged on a spray arm 47 and 48 nozzles 52 and 53 or to the auxiliary nozzle 60.
  • the distributor part 37 forms for this purpose a switching device, the one in the Drawing for obtaining a better overview valve piston, not shown, which can be moved by means of the upper side of the housing 11 arranged foot pedals 64 and 65 between a first and a second switching position back and forth.
  • valve piston of the distributor part 37 releases the flow path between the supply pipe 38 and the first supply line 45 and at the same time blocks the flow path between the supply pipe 38 and the second supply line 57, and in its second switching position the valve piston of the distributor part 37 provides the flow connection between the supply pipe 38 and the second supply line 57 and at the same time blocks the flow connection between the supply pipe 38 and the first supply line 45.
  • the user can thus select whether to apply pressurized cleaning fluid through the rotating nozzles 52 and 53 or via the additional nozzle 60.
  • the use of the additional nozzle 60 is preferably carried out for cleaning corner areas of a surface.
  • auxiliary nozzle 60 Below the auxiliary nozzle 60 is at a distance to this on the outside of the cylinder wall 15 of the additional nozzle 60 associated impact element in the form of a baffle plate 68 formed on the upper side, d. H. on its the additional nozzle 60 facing top carries a reinforcing rib 69 and projects in the manner of a web to the outside of the cylinder wall 14.
  • the baffle plate 68 is aligned perpendicular to the axis of rotation 55 of the spray arms 47 and 48 and protrudes on the spray arms 47, 48 facing side of the beam portion 61 in the beam portion 61, wherein the free end of the baffle plate 68 disposed approximately at the level of the longitudinal axis of the auxiliary nozzle 60 is.
  • the auxiliary nozzle 60 When pressurized cleaning liquid is discharged from the auxiliary nozzle 60, the auxiliary nozzle 60 exerts on the housing 11 a repulsive force away from the surface to be cleaned. A part of the cleaning liquid discharged from the auxiliary nozzle 60 impinges on the upper side of the baffle plate 68, so that the baffle plate 68 exerts on the housing 11 a counterforce directed counter to the repulsive force of the auxiliary nozzle 60. This has the consequence that even with a delivery of cleaning fluid through the additional nozzle 60 there is no danger that the surface cleaning head 10 lifts off with its front, the housing tip adjacent area of the surface to be cleaned.
  • a surface to be cleaned can be acted upon by means of the surface cleaning device 10 optionally with cleaning liquid from the rotating around the axis of rotation 55 nozzles 52 and 53 or with cleaning liquid from the auxiliary nozzle 60.
  • the surface cleaning device 10 optionally with cleaning liquid from the rotating around the axis of rotation 55 nozzles 52 and 53 or with cleaning liquid from the auxiliary nozzle 60.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)

Claims (12)

  1. Tête de nettoyage de surface pour nettoyer une surface, ladite tête de nettoyage de surface comportant un boîtier (11), ouvert d'un côté et en forme de capot, dans lequel un bras de projection (47, 48) doté d'un ajutage (52, 53) est monté de façon à pouvoir tourner autour d'un axe de rotation (55), 1"ajutage (52, 53) pouvant être alimenté en liquide de nettoyage sous pression et tournant autour de l'axe de rotation conjointement avec le bras de projection (47, 48) pour solliciter la surface à nettoyer avec un jet de liquide, et au moins un ajutage additionnel (60), maintenu fixe en rotation, qui peut être alimenté en liquide de nettoyage sous pression, caractérisée en ce que, à l'au moins un ajutage additionnel (60), est associé un élément de décapage (68) qui peut être alimenté en liquide de nettoyage par l'ajutage additionnel (60).
  2. Tête de nettoyage de surface selon la revendication 1, caractérisée en ce que l'élément de décapage (68) est orienté perpendiculairement à l'axe de rotation (55) de l'au moins un bras de projection (47, 48).
  3. Tête de nettoyage de surface selon la revendication 1 ou 2, caractérisée en ce que l'élément de décapage (68) fait saillie latéralement dans la région de jet (61) du liquide de nettoyage délivré par l'ajutage additionnel associé (60).
  4. Tête de nettoyage de surface selon la revendication 3, caractérisée en ce que l'élément de décapage (68) fait saillie jusqu'au milieu de la région de jet (61) du liquide de nettoyage délivré par l'ajutage additionnel associé (60).
  5. Tête de nettoyage de surface selon la revendication 3 ou 4, caractérisée en ce que l'élément de décapage (68) fait saillie dans la région de jet (61) du côté de la région de jet (61) qui est dirigé vers l'au moins un bras de projection (47, 48).
  6. Tête de nettoyage de surface selon l'une des revendications précédentes, caractérisée en ce que l'au moins un bras de projection (45, 48) tournant autour de l'axe de rotation (55) définit une région de projection qui est entourée par une paroi cylindrique (16) du côté extérieur de laquelle est monté une pièce rapportée (20) qui s'étend sur une région partielle de la périphérie extérieure de la paroi cylindrique (15) et qui définit conjointement avec la paroi cylindrique (15) un espace supplémentaire (28) dans lequel sont disposés au moins l'ouverture de sortie d'un ajutage additionnel (60) et, à distance de celui-ci, l'élément de décapage (68) associé à l'ajutage additionnel (60).
  7. Tête de nettoyage de surface selon la revendication 6, caractérisée en ce que la pièce rapportée (20) a une forme de V en vue de dessus.
  8. Tête de nettoyage de surface selon la revendication 6 ou 7, caractérisée en ce que l'élément de décapage (68) est monté du côté extérieur de la paroi cylindrique (15) qui est opposé à l'au moins un bras de projection (47, 48).
  9. Tête de nettoyage de surface selon l'une des revendications précédentes, caractérisée en ce que l'élément de décapage (68) est relié d'une seule pièce à une paroi cylindrique (15).
  10. Tête de nettoyage de surface selon l'une des revendications précédentes, caractérisée en ce que l'élément de décapage (68) est conformé en plaque ou en nervure.
  11. Tête de nettoyage de surface selon l'une des revendications précédentes, caractérisée en ce que l'élément de décapage (68) comporte un renfort (69).
  12. Tête de nettoyage de surface selon la revendication 11, caractérisée en ce que le renfort (69) est disposé du côté de l'élément de décapage (68) qui est dirigé vers l'ajutage additionnel associé (60).
EP09711740A 2008-02-22 2009-02-17 Tête de nettoyage de surface Active EP2247393B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09711740T PL2247393T3 (pl) 2008-02-22 2009-02-17 Głowica do czyszczenia powierzchni

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008011506A DE102008011506A1 (de) 2008-02-22 2008-02-22 Flächenreinigungskopf
PCT/EP2009/001103 WO2009103486A1 (fr) 2008-02-22 2009-02-17 Tête de nettoyage de surface

Publications (2)

Publication Number Publication Date
EP2247393A1 EP2247393A1 (fr) 2010-11-10
EP2247393B1 true EP2247393B1 (fr) 2012-08-29

Family

ID=40671361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09711740A Active EP2247393B1 (fr) 2008-02-22 2009-02-17 Tête de nettoyage de surface

Country Status (5)

Country Link
EP (1) EP2247393B1 (fr)
CN (1) CN101939116B (fr)
DE (1) DE102008011506A1 (fr)
PL (1) PL2247393T3 (fr)
WO (1) WO2009103486A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012119643A1 (fr) * 2011-03-07 2012-09-13 Alfred Kärcher Gmbh & Co. Kg Appareil de nettoyage haute pression
CN104114292B (zh) * 2012-02-20 2017-05-31 阿尔弗雷德·凯驰两合公司 面清洁头和用于面清洁系统的阻流元件
NO20180461A1 (en) * 2017-04-06 2018-10-08 Abyss Aqua As Fishfarm cleaning robot
PL3833490T3 (pl) * 2018-08-09 2023-01-23 Alfred Kärcher SE & Co. KG Głowica do czyszczenia powierzchni

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191589A (en) * 1977-04-25 1980-03-04 The John J. Sundheim Family Estate Method and apparatus for cleaning carpets and surfaces using cleaning fluid
DE4129026C1 (fr) * 1991-08-31 1993-03-04 Alfred Kaercher Gmbh & Co, 7057 Winnenden, De
US5265805A (en) * 1992-08-17 1993-11-30 Artenian Steven M Rotary lance cleaning apparatus
DE19802308C2 (de) * 1998-01-22 2001-05-31 Horst Laug Absaugvorrichtung für Sandstrahl- und Flüssigkeitsdruckdüsen
EP1027854A1 (fr) * 1999-02-10 2000-08-16 Alto Danmark A/S Outil de nettoyage
US6151748A (en) 2000-03-21 2000-11-28 Environmental Cleaning Systems, Inc. Carpeting and surface cleaning apparatus
DE10206013C1 (de) 2002-02-14 2003-05-22 Kaercher Gmbh & Co Alfred Bodenreinigungsgerät
DE102005010784A1 (de) * 2005-03-02 2006-09-07 Alfred Kärcher Gmbh & Co. Kg Spritzschutzeinrichtung für Hochdruckreinigungsgeräte
US7891036B2 (en) * 2005-03-18 2011-02-22 Techtronic Outdoor Products Technology Limited Multi-function power washer
DE102007029245A1 (de) * 2007-06-13 2008-12-18 Alfred Kärcher Gmbh & Co. Kg Flächenreinigungskopf

Also Published As

Publication number Publication date
DE102008011506A1 (de) 2009-08-27
PL2247393T3 (pl) 2013-01-31
WO2009103486A1 (fr) 2009-08-27
EP2247393A1 (fr) 2010-11-10
CN101939116A (zh) 2011-01-05
CN101939116B (zh) 2013-06-12

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