WO1990003142A1 - Tete nettoyeuse - Google Patents

Tete nettoyeuse Download PDF

Info

Publication number
WO1990003142A1
WO1990003142A1 PCT/GB1989/001120 GB8901120W WO9003142A1 WO 1990003142 A1 WO1990003142 A1 WO 1990003142A1 GB 8901120 W GB8901120 W GB 8901120W WO 9003142 A1 WO9003142 A1 WO 9003142A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
inner compartment
cleaning head
closure member
chamber
Prior art date
Application number
PCT/GB1989/001120
Other languages
English (en)
Inventor
Michael Atkinson
Original Assignee
Vax Appliances Limited
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 Limited filed Critical Vax Appliances Limited
Priority to AT89910912T priority Critical patent/ATE89146T1/de
Priority to KR1019900701061A priority patent/KR900701210A/ko
Priority to DE1989606547 priority patent/DE68906547T2/de
Publication of WO1990003142A1 publication Critical patent/WO1990003142A1/fr

Links

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
    • A47L11/40—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
    • 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

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 substantial ly medial ly within the suction chamber, the inner compartment having a liquid inlet opening, side walls terminating substantial ly 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 the 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.
  • FIGURE I shows the head in a sectional front elevation
  • FIGURE 2 shows a section on the line X-X of Figure I ;
  • FIGURE 3 shows an underneath plan view.
  • the preferred form of cleaning head comprises an elongate housing 10 with a centrally disposed tubular outlet spigot 1 1 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 1 1 and terminates in a liquid inlet aperture 13 which is disposed central ly within the housing 10 on the medial centre line thereof.
  • a pair of integral ly 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 paral lel to -the side walls 16 and upto the end walls 17 thereof so as to divide the housing into two spaced portions 10a, I0b_ of a suction chamber both of which are in communication with the outlet spigot 1 1.
  • 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 1 1.
  • the suction at the outlet spigot is applied to both portions lOa Ob of the suction chamber defined by the housing 10, but not to the space between the internal walls 1 .
  • 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 14a of the walls 14, which edges 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 14a 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 il lustrated 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 gravitational ly, or by a syphon system, in either case optional ly 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 1 1 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 capil lary action tending to draw the liquid along the underside of the plate, which is sufficiently close to the lower ends 14a of the internal wal ls 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 I mm above the end 14a of the internal wal ls 14.
  • the arrangement of the lower ends 14a 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 is 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 waif spaced from the top wall 15 of the outer housing 10, with the boss 12 connected to said inner housing.

Abstract

Tête nettoyeuse à aspiration de forme allongée comprenant un logement (10) qui définit une chambre d'aspiration à l'intérieur de laquelle se trouve un compartiment intérieur (21) muni d'un canal d'entrée pour un liquide (13). Le compartiment intérieur (21) est délimité en partie par des parois latérales (14) qui s'étendent jusqu'au plan d'une ouverture définie par la chambre d'aspiration et en partie par un élément de fermeture (20) disposé de manière légèrement oblique vers l'intérieur par rapport à l'extrémité inférieure des parois latérales (14). Des ouvertures (24) adjacentes aux extrêmités opposées de l'élément de fermeture (20) permettent à un liquide de s'écouler depuis le compartiment intérieur (21) à des endroits adjacents aux extrémités opposées du logement externe (10). Le dessous de l'élément de fermeture (20) est muni de préférence de fines rainures pour obtenir un effet de capillarité permettant de drainer le liquide vers le centre de la tête nettoyeuse.
PCT/GB1989/001120 1988-09-23 1989-09-22 Tete nettoyeuse WO1990003142A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT89910912T ATE89146T1 (de) 1988-09-23 1989-09-22 Reinigungskopf.
KR1019900701061A KR900701210A (ko) 1988-09-23 1989-09-22 세척 헤드
DE1989606547 DE68906547T2 (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
GB8822391.2 1988-09-23

Publications (1)

Publication Number Publication Date
WO1990003142A1 true WO1990003142A1 (fr) 1990-04-05

Family

ID=10644131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1989/001120 WO1990003142A1 (fr) 1988-09-23 1989-09-22 Tete nettoyeuse

Country Status (6)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103527A (en) * 1987-11-18 1992-04-14 Vax Appliances (Australia) Pty Ltd Suction cleaning head
WO1992005735A1 (fr) * 1990-10-02 1992-04-16 Vax Appliances Ltd Tête de nettoyage par aspiration
GB2240467B (en) * 1990-02-03 1993-12-15 Hoover Plc Suction cleaner nozzle
US8038994B2 (en) 1996-05-15 2011-10-18 Quest Pharmatech Inc. Combination therapy for treating disease
US8991000B2 (en) 2009-12-03 2015-03-31 Bissell Homecare, Inc. Low moisture extraction deep cleaning

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616482A (en) * 1967-11-13 1971-11-02 Wladyslaw Brycki Suction operated washing and cleaning apparatus
GB1291138A (en) * 1970-03-25 1972-09-27 Wladyslaw Brycki Improvements in or relating to suction cleaning apparatus
FR2390144A1 (fr) * 1977-05-13 1978-12-08 Vax Appliances Ltd Appareil de nettoyage de sols, de tapis et de revetements analogues
FR2390145A1 (fr) * 1977-05-13 1978-12-08 Vax Appliances Ltd Tete de nettoyage
EP0316848A2 (fr) * 1987-11-18 1989-05-24 Vax Appliances (Australia) Pty Limited Tête de nettoyage par aspiration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616482A (en) * 1967-11-13 1971-11-02 Wladyslaw Brycki Suction operated washing and cleaning apparatus
GB1291138A (en) * 1970-03-25 1972-09-27 Wladyslaw Brycki Improvements in or relating to suction cleaning apparatus
FR2390144A1 (fr) * 1977-05-13 1978-12-08 Vax Appliances Ltd Appareil de nettoyage de sols, de tapis et de revetements analogues
FR2390145A1 (fr) * 1977-05-13 1978-12-08 Vax Appliances Ltd Tete de nettoyage
EP0316848A2 (fr) * 1987-11-18 1989-05-24 Vax Appliances (Australia) Pty Limited Tête de nettoyage par aspiration

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103527A (en) * 1987-11-18 1992-04-14 Vax Appliances (Australia) Pty Ltd Suction cleaning head
GB2240467B (en) * 1990-02-03 1993-12-15 Hoover Plc Suction cleaner nozzle
WO1992005735A1 (fr) * 1990-10-02 1992-04-16 Vax Appliances Ltd Tête de nettoyage par aspiration
US5485652A (en) * 1990-10-02 1996-01-23 Vax Appliances Ltd. Suction cleaning head
US8038994B2 (en) 1996-05-15 2011-10-18 Quest Pharmatech Inc. Combination therapy for treating disease
US8991000B2 (en) 2009-12-03 2015-03-31 Bissell Homecare, Inc. Low moisture extraction deep cleaning

Also Published As

Publication number Publication date
JPH04500920A (ja) 1992-02-20
KR900701210A (ko) 1990-12-01
EP0435930B1 (fr) 1993-05-12
AU4323989A (en) 1990-04-18
AU621410B2 (en) 1992-03-12
GB8822391D0 (en) 1988-10-26
EP0435930A1 (fr) 1991-07-10

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