EP0435930B1 - Reinigungskopf - Google Patents

Reinigungskopf Download PDF

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Publication number
EP0435930B1
EP0435930B1 EP89910912A EP89910912A EP0435930B1 EP 0435930 B1 EP0435930 B1 EP 0435930B1 EP 89910912 A EP89910912 A EP 89910912A EP 89910912 A EP89910912 A EP 89910912A EP 0435930 B1 EP0435930 B1 EP 0435930B1
Authority
EP
European Patent Office
Prior art keywords
suction
inner compartment
cleaning head
closure member
side walls
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
EP89910912A
Other languages
English (en)
French (fr)
Other versions
EP0435930A1 (de
Inventor
Michael Atkinson
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.)
Vax Appliances Ltd
Original Assignee
Vax Appliances Ltd
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 Vax Appliances Ltd filed Critical Vax Appliances Ltd
Priority to AT89910912T priority Critical patent/ATE89146T1/de
Publication of EP0435930A1 publication Critical patent/EP0435930A1/de
Application granted granted Critical
Publication of EP0435930B1 publication Critical patent/EP0435930B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • 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
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees

Definitions

  • This invention relates to a cleaning head for use with an apparatus for cleaning walls, floors, carpets, curtains, upholstery and the like, and more particularly concerns a cleaning head for use in the process of water extraction cleaning, in which a carpet or the like is thoroughly wetted by a solution containing a suitable cleansing agent, such as non-foaming detergent, and the carpet or the like is then dried by the uptake of that solution by means of suction.
  • a cleaning head is the subject of our British Patent No. 1601455 and the present invention concerns a development of the design disclosed therein.
  • an elongate suction cleaning head comprising a suction chamber having an open mouth for application to a surface to be cleaned and a centrally disposed suction outlet for connection to a source of suction, and an elongate inner compartment which extends substantiatly medially within the suction chamber, the inner compartment having a liquid inlet opening, side walls terminating substantially in the plane of the open mouth of the suction chamber and a closure member at a position adjacent to the ends of the side walls thereof whereby the inner compartment serves as a liquid delivery chamber, the closure member closing said chamber except for outlet openings adjacent to opposed ends of the inner compartment, the arrangement being such that when the cleaning head is applied to a surface to be cleaned, cleaning liquid flows from said chamber through said openings and is constrained between the ends of the side walls of said inner compartment and the closure member so as to be shielded from air flow arising from vacuous conditions within the suction chamber.
  • the preferred form of cleaning head comprises an elongate housing 10 with a centrally disposed tubular outlet spigot 11 for attachment to a suction hose (not shown).
  • An internal hollow boss 12 for the reception of a nozzle at the end of a pipe (not shown) through which a cleaning liquid is supplied is formed integrally within the spigot 11 and terminates in a liquid inlet aperture 13 which is disposed centrally within the housing 10 on the medial centre line thereof.
  • a pair of integrally moulded internal walls 14 protrude downwardly from the top wall 15 of the housing.
  • the walls 14 are spaced inwardly from the side walls 16 of the housing and extend parallel to the side walls 16 and upto the end walls 17 thereof so as to divide the housing into two spaced portions 10 a , 10 b of a suction chamber both of which are in communication with the outlet spigot 11.
  • a pair of reinforcing struts 26 extend between the central points of the internal walls 14 and the side walls 16 of the housing.
  • An integrally moulded strap 18 supports the lower end of the boss 12 and closes off the space between the internal walls 14 from the outlet spigot 11.
  • the suction at the outlet spigot is applied to both portions 10 a .10 b of the suction chamber defined by the housing 10, but not to the space between the internal walls 14.
  • This space forms a compartment 21 which is substantially closed by means of a member in the form of a spreader plate 20 which is located slightly inwardly from the lower ends 14 a of the walls 14, which ends are substantially co-planar with the open mouth of the housing 10.
  • the internal walls 14 are formed with rebates 22 adjacent to their free ends 14 a to receive the spreader plate 20, and the latter is formed with a pair of upstanding ribs 25 which engage against the inner faces of the internal walls 14.
  • the spreader plate 20 does not extend fully up to the end walls 17 of the housing 10, but in the illustrated embodiment stops short thereof and is located clear of both end walls by means of protrusions 23 formed at the junction between the internal walls 14 and the end walls 17.
  • outlet openings 24 are provided at the opposed ends of the compartment 21.
  • a cleaning liquid is supplied through the hollow boss 12 and the inlet aperture 13 to the interior of the compartment 21 above the spreader plate 20.
  • the cleaning solution may be supplied to the compartment 21 by any appropriate means.
  • the cleaning head is designed for use with substantially non-pressurised liquid delivery systems.
  • the liquid may be supplied gravitationally, or by a syphon system, in either case optionally assisted by a slight positive pressure generated for example by the application of exhaust air from the suction cleaner fan to a liquid reservoir in the manner disclosed in our British Patent No. 1601456.
  • a bleed hole (not shown) may be formed in the strap 18 so that suction within the spigot 11 establishes a reduced pressure within the compartment 21 to draw liquid from a reservoir in the manner described in our European Patent Specification No. 0316848.
  • the underside of the plate 20 is preferably formed with fine grooves which provide a capillary action tending to draw the liquid along the underside of the plate, which is sufficiently close to the lower ends 14 a of the internal walls 14 to be contacted by the pile of a carpet on which the head is placed.
  • the underside of the spreader plate 20 may be disposed approximately 1mm above the end 14 a of the internal walls 14.
  • the arrangement of the lower ends 14 a of the internal walls 14 in substantially the same plane as the mouth of the housing 10 ensures that the space beneath the spreader plate 20 is effectively sealed against the fabric being treated and there is virtually no possibility of the liquid passing through the openings 24 being drawn away by virtue of the air flow established within the head. Instead, the liquid is shielded by the lower ends of the internal walls 14 and applied directly to the fabric being cleaned in such a manner that it spreads inwardly from opposite ends of the plate 20 and effectively wets the fabric thoroughly over the full width of the cleaning head.
  • the use of the spreader plate 20 with outlet openings 24 adjacent the ends thereof makes it possible to increase the overall width of the cleaning head as compared with a prior arrangement in which the liquid is supplied through a row of closely spaced fine outlets extending substantially entirely along the length of the head.
  • the plate 20 it would be possible for the plate 20 to extend fully upto the end walls 17 of the housing so as to eliminate the openings 24 as illustrated, and instead form equivalent openings at positions near the ends of the plate.
  • the inner compartment could be defined by a separable inner housing having side walls spaced from the side walls 16 and top wall spaced from the top wall 15 of the outer housing 10, with the boss 12 connected to said inner housing.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Ink Jet (AREA)

Claims (8)

  1. Langgestreckter Saug-Reinigungskopf, mit einer Saugkammer (10a, 10b), welche eine offene Mündung für das Aufbringen auf eine zu reinigende Fläche und einen mittig angeordneten Saugauslaß (11) für die Verbindung mit einer Quelle für Sog hat, und einem langgestreckten inneren Raum (21), welcher sich im wesentlichen zur Mitte hin gelegen innerhalb der Saugkammer (10a, 10b) erstreckt, wobei der innere Raum eine Flüssigkeitseinlaßöffnung (13) hat, wobei Seitenwände (14) im wesentlichen in der Ebene der offenen Mündung der Saugkammer enden, und gekennzeichnet durch ein Verschlußelement (20) an einer Stelle benachbart den Enden von deren Seitenwänden, wodurch der innere Raum als eine Flüssigkeitszufuhrkammer dient, wobei das Verschlußelement die Kammer mit Ausnahme von Auslaßöffnungen (24) benachbart gegenüberliegender Enden des inneren Raumes abschließt, wobei die Anordnung so ist, daß wenn der Reinigungskopf auf eine zu reinigende Fläche aufgebracht wird, Reinigungsflüssigkeit aus der Kammer durch die Öffnungen strömt und zwischen die Enden der Seitenwände des inneren Raumes und des Verschlußelementes gezwungen wird, so daß sie von dem Luftstrom, der sich wegen der vakuumähnlichen Bedingungen innerhalb der Saugkammer einstellt, umhüllt wird.
  2. Reinigungskopf nach Anspruch 1, bei dem das Verschlußelement leicht von den Enden der Seitenwände des inneren Raumes nach innen beabstandet ist.
  3. Reinigungskopf nach Anspruch 2, bei dem das Verschlußelement innerhalb von Falzen angeordnet ist, die in den Seitenwänden des inneren Raumes ausgebildet sind.
  4. Reinigungskopf nach einem der vorangehenden Ansprüche, bei dem die Auslaßöffnungen zwischen gegenüberliegenden Enden des Verschlußelementes und Endwänden der Saugkammer definiert sind.
  5. Reinigungskopf nach einem der vorangehenden Ansprüche, bei dem die Unterseite des Verschlußelementes mit feinen Rillen ausgebildet ist, um so eine Kapillarwirkung zu schaffen.
  6. Saugkopf nach einem der vorangehenden Ansprüche, bei dem die Seitenwände des inneren Raumes sich hin zu einer Deckwand der Saugkammer und über einen Saugauslaß erstrecken, wobei das Innere des inneren Raumes von dem Saugauslaß abgeschlossen ist.
  7. Reinigungskopf nach einem der Ansprüche 1 bis 5, bei dem der innere Raum als ein abtrennbares inneres Gehäuse gebildet ist.
  8. Reinigungskopf nach einem der vorangehenden Ansprüche, bei dem die Kommunikation zwischen dem inneren Raum und der Saugkammer durch ein Zusatzloch in dem oberen Bereich des inneren Raumes geschaffen wird, um darin reduzierten Druck einzurichten, wenn Sog an den Saugauslaß der Saugkammer angelegt wird.
EP89910912A 1988-09-23 1989-09-22 Reinigungskopf Expired - Lifetime EP0435930B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89910912T ATE89146T1 (de) 1988-09-23 1989-09-22 Reinigungskopf.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888822391A GB8822391D0 (en) 1988-09-23 1988-09-23 Cleaning head
GB8822391 1988-09-23

Publications (2)

Publication Number Publication Date
EP0435930A1 EP0435930A1 (de) 1991-07-10
EP0435930B1 true EP0435930B1 (de) 1993-05-12

Family

ID=10644131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89910912A Expired - Lifetime EP0435930B1 (de) 1988-09-23 1989-09-22 Reinigungskopf

Country Status (6)

Country Link
EP (1) EP0435930B1 (de)
JP (1) JPH04500920A (de)
KR (1) KR900701210A (de)
AU (1) AU621410B2 (de)
GB (1) GB8822391D0 (de)
WO (1) WO1990003142A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316848B1 (de) * 1987-11-18 1992-11-04 Vax Appliances (Australia) Pty Limited Saugreinigungskopf
GB2240467B (en) * 1990-02-03 1993-12-15 Hoover Plc Suction cleaner nozzle
SG86964A1 (en) * 1990-10-02 2002-03-19 Vax Appliances Ltd Suction cleaning head
US8038994B2 (en) 1996-05-15 2011-10-18 Quest Pharmatech Inc. Combination therapy for treating disease
EP2329754B1 (de) 2009-12-03 2013-08-14 Bissell Homecare, Inc. Wasserarme Extraktionstiefenreinigung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291138A (en) * 1970-03-25 1972-09-27 Wladyslaw Brycki Improvements in or relating to suction cleaning apparatus
US3616482A (en) * 1967-11-13 1971-11-02 Wladyslaw Brycki Suction operated washing and cleaning apparatus
CA1120215A (en) * 1977-03-13 1982-03-23 Alan J. Brazier Cleaning head and method
SE439242B (sv) * 1977-05-13 1985-06-10 Vax Appliances Ltd Sugrengoringsapparat
EP0316848B1 (de) * 1987-11-18 1992-11-04 Vax Appliances (Australia) Pty Limited Saugreinigungskopf

Also Published As

Publication number Publication date
GB8822391D0 (en) 1988-10-26
AU4323989A (en) 1990-04-18
JPH04500920A (ja) 1992-02-20
WO1990003142A1 (en) 1990-04-05
KR900701210A (ko) 1990-12-01
EP0435930A1 (de) 1991-07-10
AU621410B2 (en) 1992-03-12

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