EP2467214B1 - Flächenreinigungskopf - Google Patents

Flächenreinigungskopf Download PDF

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Publication number
EP2467214B1
EP2467214B1 EP09781919.7A EP09781919A EP2467214B1 EP 2467214 B1 EP2467214 B1 EP 2467214B1 EP 09781919 A EP09781919 A EP 09781919A EP 2467214 B1 EP2467214 B1 EP 2467214B1
Authority
EP
European Patent Office
Prior art keywords
cleaning head
surface cleaning
accordance
rotation
axis
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.)
Not-in-force
Application number
EP09781919.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2467214A1 (de
Inventor
Jürgen Binder
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 PL09781919T priority Critical patent/PL2467214T3/pl
Publication of EP2467214A1 publication Critical patent/EP2467214A1/de
Application granted granted Critical
Publication of EP2467214B1 publication Critical patent/EP2467214B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • 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

Definitions

  • the invention relates to a surface cleaning head for cleaning a surface, with a hood-shaped, downwardly open housing, in which at least one spray arm is rotatably mounted about an axis of rotation, wherein the spray arm at a distance from the axis of rotation carries a nozzle which can be acted upon with pressurized cleaning liquid and rotates together with the spray arm about the axis of rotation to act on the surface to be cleaned with a liquid jet, and with a protective disc covering the at least one spray arm to the open bottom of the housing and an annular, characterized by holding webs liquid passage defined for passage of the liquid jet, wherein the at least one spray arm is rotatable relative to the protective disk.
  • Such a surface cleaning head is from the US 3,832,069 known. It is suitable for example for cleaning hard surfaces, such as patio floors, garage entrances and garage doors.
  • the pressure line of a high-pressure cleaning device can be connected to the surface cleaning head. Pressurized cleaning fluid may then be supplied to the nozzle located at the at least one spray arm. With the help of the nozzle, 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.
  • Object of the present invention is to develop a surface cleaning head of the type mentioned in such a way that it has a lower noise.
  • This object is achieved in a surface cleaning head of the generic type according to the invention that the holding webs are arranged distributed unevenly in the circumferential direction.
  • the holding webs that pass through the liquid passage are distributed unevenly in the circumferential direction. This has the consequence that the liquid jet emanating from the nozzle at irregular intervals on a holding web meets. Due to the temporally irregular loading of adjacent retaining webs with pressurized liquid, no vibration resonance can form in the protective disk and this in turn means that the noise development of the surface cleaning head according to the invention is relatively low.
  • an odd number of retaining webs is used, for example, three, five, seven or nine retaining webs may be provided which are arranged distributed unevenly in the circumferential direction.
  • the protective disc forms in an advantageous embodiment of the invention, a central shield, which is arranged below the at least one spray arm and which is connected via the holding webs with a protective shield surrounding in the circumferential direction retaining ring. It has been shown that the use of the retaining ring makes it possible to mechanically stabilize the central protective shield, particularly in its outer edge region adjoining the fluid passage.
  • the protective shield is configured in a grid or net shape.
  • the shield includes a plurality of reinforcing ribs that mechanically stabilize the shield.
  • the reinforcing ribs form a mechanical reinforcement of the protective shield.
  • the latter is preferably produced as a plastic molding in an injection molding process.
  • the upwardly and downwardly projecting from the shield reinforcing portions flow channels, which ensure that sufficient plastic material can flow to the outer edge regions of the injection mold.
  • the reinforcing ribs thus also have an injection molding function in addition to their reinforcing function.
  • the retaining ring is arranged at a distance from the housing.
  • the distance of the retaining ring to the housing in the radial direction is preferably less than the radial extent of the liquid passage.
  • the retaining ring in the axial direction with respect to the axis of rotation of the at least one Sprüharms has an upper end portion which is disposed within the housing, and a lower end portion which projects beyond the lower edge of the housing.
  • the upper end portion of the retaining ring is thus circumferentially surrounded by the housing. This allows the housing form a guide for the retaining ring in the Assembly of the protective disk by the protective disk, whose outer edge region is formed by the retaining ring, is inserted from below into the housing.
  • the lower end portion of the retaining ring may protrude from the housing in the axial direction.
  • the retaining ring can thereby form a shock protection, which protects the housing against damage in an unintentional approach of the surface cleaning head to the surface to be cleaned, since in such an approach, the retaining ring with its axially projecting area touches the surface to be cleaned, even before the housing on can open the area.
  • a flexible splash guard is arranged, which protrudes in the axial direction over the lower edge of the retaining ring is particularly advantageous.
  • a flexible splash guard for example, a rubber lip or a bristle ring can be used.
  • the flexible splash guard surrounds the lower end portion of the retaining ring in the circumferential direction, and as the surface cleaning head passes along the surface to be cleaned, the splash guard may contact the surface without causing the retaining ring to contact the surface.
  • the material thickness of the retaining ring is less than its axial extent.
  • the retaining ring thus forms a kind of pipe section or sleeve.
  • the sleeve surrounds the central shield of the protective disk in the circumferential direction and forms a mechanical stabilization.
  • the surface cleaning head comprises at least one further nozzle, which is arranged radially offset from the shield, that is, a greater radial distance from the axis of rotation than the outer edge of the protective disk.
  • the additional nozzle can be rotatably held in the housing and used, for example, for cleaning corner areas of a surface used.
  • FIGS. 1 to 5 shows a first embodiment of a total occupied by the reference numeral 10 surface cleaning head according to the invention.
  • This includes a hood-shaped, downwardly open housing 12 with an annular in plan view, self-contained cylinder wall 14 which carries at its lower edge 15 a circumferential flexible splash guard in the form of a bristle ring 17.
  • the cylinder wall 14 is covered by a ceiling wall 19.
  • a substantially V-shaped attachment part 21 is attached to the cylinder wall 14, to which a cover 22 covering the ceiling wall 19 in a central area adjoins above the ceiling wall 19.
  • a first handle 23 and a second handle 24 are arranged, which can be encompassed by the user for supporting the surface cleaning head 10th
  • the central distributor part 32 is connected via a first supply line 40 with two diametrically opposed spray arms 42, 44 in fluid communication, each having a flow channel 46 and 48 and carry at its free end a nozzle 50 and 52, respectively.
  • the flow channels 46, 48 extend through the spray arms 42 and 44, respectively. In FIG. 2 the flow channels 46, 48 are only partially shown.
  • the nozzles 50, 52 are acted upon by the supply pipe 34 and the distributor part 32 and the first supply line 40 and the flow channels 46 and 48 with pressurized cleaning liquid and produce an obliquely downwardly directed liquid jet of a cleaning liquid.
  • the liquid jets Upon exiting the nozzles 50, 52, the liquid jets exert a torque on the spray arms 42, 44 by reaction forces and cause them to rotate about a rotation axis 54 aligned coaxially with the longitudinal axis of the first lead 40.
  • a first liquid jet and a second liquid jet are directed to a surface to be cleaned.
  • a second supply line 56 which dips on the upper side in the additional space 30 and carries at its free end an additional nozzle 58.
  • the additional nozzle 58 is designed in the form of a spray nozzle and held in the housing 12 in a fixed manner in contrast to the rotating nozzles 50, 52. From the additional nozzle 58, pressurized cleaning fluid can be dispensed, for example for cleaning a corner region of a surface to be cleaned.
  • the supply of cleaning liquid from the supply pipe 34 via the distributor part 32 is carried out selectively either only to each of a spray arm 52, 54 arranged nozzles 50, 52 or to the additional nozzle 58.
  • the distributor part 32 has a switching device 60 shown only schematically in the drawing which in a first switching position releases the flow path between the supply pipe 34 and the first supply line 40 and in a second switching position the flow path between the supply pipe 34 and the second supply line 56.
  • the retaining ring 78 is designed in the manner of a very short piece of pipe or in the manner of a sleeve by its material thickness is considerably less than its extension in the axial direction with respect to the axis of rotation 54 of the spray arms 42, 44.
  • An axial upper end portion 84 of the retaining ring 78 is within of the housing 12 is arranged by being circumferentially surrounded by the free end portion of the cylinder wall 14, whereas an axial lower end portion 86 projects downwardly beyond the lower edge 15 of the cylinder wall 14 and thus over the housing 12.
  • the protective plate 64 When mounting the surface cleaning head 10, the protective plate 64 can be inserted from below into the housing 12. In this case, the lower end region of the cylinder wall 14 forms a guide for the protective disk 64.
  • the annular fluid passage 82 is arranged in alignment with the nozzles 50 and 52, so that the liquid jets emanating from the nozzles 50, 52 through the Liquid passage 82 can pass to act on the surface to be cleaned.
  • the in the FIGS. 6 and 7 surface cleaning head 90 shown differs from the above-described surface cleaning head 10 in that it has only the two nozzles 50, 52, which are respectively held at the free end of a spray arm 42 and 44 and rotate upon application of pressurized cleaning fluid about the axis of rotation 54.
  • a non-rotatable additional nozzle is not used in the surface cleaning head 90.

Landscapes

  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP09781919.7A 2009-08-17 2009-08-17 Flächenreinigungskopf Not-in-force EP2467214B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09781919T PL2467214T3 (pl) 2009-08-17 2009-08-17 Głowica do czyszczenia powierzchni

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/060633 WO2011020492A1 (de) 2009-08-17 2009-08-17 Flächenreinigungskopf

Publications (2)

Publication Number Publication Date
EP2467214A1 EP2467214A1 (de) 2012-06-27
EP2467214B1 true EP2467214B1 (de) 2013-05-08

Family

ID=42173903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09781919.7A Not-in-force EP2467214B1 (de) 2009-08-17 2009-08-17 Flächenreinigungskopf

Country Status (9)

Country Link
US (1) US9027579B2 (pl)
EP (1) EP2467214B1 (pl)
JP (1) JP5336661B2 (pl)
CN (1) CN102470401B (pl)
BR (1) BR112012003594A2 (pl)
DK (1) DK2467214T3 (pl)
PL (1) PL2467214T3 (pl)
RU (1) RU2503510C2 (pl)
WO (1) WO2011020492A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3833490B1 (de) 2018-08-09 2022-10-05 Alfred Kärcher SE & Co. KG Flächenreinigungskopf

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2817104T3 (da) 2012-02-20 2023-05-30 Kaercher Alfred Se & Co Kg Fladerengøringshoved og strømningsmodstandselement til et fladerengøringshoved
WO2014144929A2 (en) * 2013-03-15 2014-09-18 James Crocker Orbital spray bar assembly for surface cleaning apparatus
CN105120994B (zh) * 2013-04-19 2017-05-10 阿尔弗雷德·凯驰两合公司 作为高压清洁设备附件的清洁剂混合设备
GB2546238B (en) * 2015-11-18 2021-07-07 Glenalmond Timber Company Ltd Single leaf separating wall
CN113695343A (zh) * 2021-09-26 2021-11-26 青岛炬荣工程科技有限公司 一种针对旋转水射流机构的防松保护网罩

Family Cites Families (20)

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US3748050A (en) * 1971-11-12 1973-07-24 Chaska Chem Co Inc Cleaner assembly
US3832069A (en) * 1972-02-02 1974-08-27 Chaska Chem Co Inc Cleaning apparatus
DE2548432C2 (de) * 1974-10-30 1986-10-02 Bernard Eaton Salisbury Wiltshire Hart Vorrichtung zum Erzeugen eines gegen eine Fläche gerichteten rotierenden Sprühstrahls
JPS5883705A (ja) * 1981-11-12 1983-05-19 日本インデスコ株式会社 滑走路面附着ゴム除去方法
SU1123731A1 (ru) * 1982-11-24 1984-11-15 Сумский Филиал Харьковского Ордена Ленина Политехнического Института Им.В.И.Ленина Распылитель жидкости
JPH05228091A (ja) * 1991-04-03 1993-09-07 Kuroki:Kk 水煙等飛散防止具
RU2026116C1 (ru) * 1991-04-09 1995-01-09 Виктор Игнатьевич Тумченок Дисковый распылитель
JPH06165972A (ja) * 1992-11-30 1994-06-14 Hitachi Kyowa Kogyo Co Ltd 洗浄装置
US6514354B2 (en) * 1993-09-08 2003-02-04 Cyclone Surface Cleaning, Inc. Surface cleaner and retrieval unit
JPH07250796A (ja) * 1994-03-16 1995-10-03 Tootaru Service:Kk 壁面の清掃方法
RU2151651C1 (ru) * 1998-01-26 2000-06-27 Производственно-инновационное предприятие "Агротехнология" Распылитель
JP3592204B2 (ja) * 2000-01-26 2004-11-24 ヤンマー株式会社 水中清掃ロボット
DE20210073U1 (de) 2002-06-28 2002-09-19 Alfred Kärcher GmbH & Co., 71364 Winnenden Reinigungsgerät
JP2004174173A (ja) * 2002-11-25 2004-06-24 Suezo Iwata 電動床磨機用回転ブラシ
US7040830B2 (en) * 2003-09-26 2006-05-09 Helen Of Troy Limited Soap dispensing apparatus
JP2005169262A (ja) * 2003-12-11 2005-06-30 Mets:Kk 洗浄液噴射装置
US7308900B2 (en) * 2004-04-01 2007-12-18 Robert Otterson Flat surface washing apparatus
JP2006312155A (ja) * 2005-05-09 2006-11-16 Sankoo Techno:Kk 水中洗滌装置
CN2890161Y (zh) * 2006-03-22 2007-04-18 王德生 洗地盘
DE102007029245A1 (de) * 2007-06-13 2008-12-18 Alfred Kärcher Gmbh & Co. Kg Flächenreinigungskopf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3833490B1 (de) 2018-08-09 2022-10-05 Alfred Kärcher SE & Co. KG Flächenreinigungskopf

Also Published As

Publication number Publication date
RU2503510C2 (ru) 2014-01-10
RU2012110124A (ru) 2013-09-27
EP2467214A1 (de) 2012-06-27
US9027579B2 (en) 2015-05-12
BR112012003594A2 (pt) 2016-03-15
JP5336661B2 (ja) 2013-11-06
CN102470401A (zh) 2012-05-23
CN102470401B (zh) 2014-02-12
DK2467214T3 (da) 2013-07-22
JP2013502305A (ja) 2013-01-24
WO2011020492A1 (de) 2011-02-24
PL2467214T3 (pl) 2013-09-30
US20130019911A1 (en) 2013-01-24

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