EP1027935A1 - Reinigungsgerät - Google Patents

Reinigungsgerät Download PDF

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Publication number
EP1027935A1
EP1027935A1 EP99102495A EP99102495A EP1027935A1 EP 1027935 A1 EP1027935 A1 EP 1027935A1 EP 99102495 A EP99102495 A EP 99102495A EP 99102495 A EP99102495 A EP 99102495A EP 1027935 A1 EP1027935 A1 EP 1027935A1
Authority
EP
European Patent Office
Prior art keywords
rotor
cleaning fluid
housing
accessory tool
tool according
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.)
Withdrawn
Application number
EP99102495A
Other languages
English (en)
French (fr)
Inventor
Allan Sand
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.)
Alto Danmark AS
Original Assignee
Alto Danmark AS
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 Alto Danmark AS filed Critical Alto Danmark AS
Priority to EP99102495A priority Critical patent/EP1027935A1/de
Publication of EP1027935A1 publication Critical patent/EP1027935A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/025—Rotational joints
    • B05B3/026—Rotational joints the fluid passing axially from one joint element to another
    • 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/03—Floor surfacing or polishing machines characterised by having provisions for supplying cleaning or polishing agents
    • 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
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
    • 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
    • A47L11/4063—Driving means; Transmission means therefor
    • 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet

Definitions

  • the present invention relates to an accessory tool for use with a high-pressure cleaner for cleaning surfaces, in particular paved surfaces as set forth in the preamble of claim 1.
  • a tool of this kind is disclosed in US-A-3,748,050.
  • a tool for use with a high-pressure cleaner discharging a generally circular pattern of cleaning fluid towards a surface or object to be cleaned.
  • the tool has a housing having a peripheral flange terminating in an edge surrounding an open side of the housing.
  • a rotor received within the housing is adapted to receive the cleaning fluid from the high-pressure cleaner.
  • the rotor comprises a pair of laterally directed tubular arms with nozzles secured to the ends of the arms that direct cleaning fluid under pressure towards the open side of the housing.
  • the use of domestic-pressure cleaners in has become popular. These high-pressure cleaners for domestic use have a relatively low power output.
  • the tool as shown in US-3,748,050 requires a supply of pressurized fluid that exceeds the capacity of a domestic high-pressure cleaner.
  • the object of the present invention to provide an accessory tool for use with a high-pressure cleaner for cleaning surfaces, in particular paved surfaces, of the kind referred to initially, which does not require a high power source of high-pressure cleaning fluid.
  • This object is achieved in accordance with claim 1 by providing the inlet conduit with a narrowing extending upstream from the transition from the inlet conduit to the transit conduit in the rotor, thereby causing the flow speed of the cleaning fluid at the transition to increase and the pressure of the cleaning fluid to decrease, thereby reducing the sealing requirements. Due to the low sealing requirements, the apparatus can work without the need of contact seals which create friction, hindering the free rotation of the rotor, and thus increase the power requirements of the apparatus.
  • the accessory tool may be provided with means for adjusting the relative position of the rotor with respect to the housing and the distance to the surface to be cleaned.
  • the contour of the housing is a curvilinear triangle.
  • the contour of the housing is a spherical triangle.
  • the rotational movement of the rotor may be driven by the cleaning fluid leaving the outlet nozzle.
  • the tool may also hover above the surface to be cleaned carried by the reaction force of the cleaning fluid leaving the outlet nozzle.
  • the terminating edge of the housing may be provided with protuberances for improving the drainage of the cleaning fluid.
  • the tool as shown in Figures 1 and 2 comprises a housing 10 having a top wall 12 which goes over into a peripheral wall 14 which terminates in an edge 16 surrounding an opening side of the housing.
  • the peripheral wall follows the contours of a curvilinear triangle, in particular a spherical triangle.
  • the triangular contour allows the tool to pass objects by sliding along them instead of bouncing back and enables cleaning in corners with an acute angle.
  • the peripheral wall 14 extends downwardly from the top wall 12 and the edge 16 which forms the bottom edge of the tool is according to a preferred embodiment provided with protuberances 18 for the tool to rest on, thus leaving a clearance between the terminating edge 16 and the surface to be cleaned allowing the cleaning fluid to evacuate.
  • a rotor 30 is received within the pan-shaped housing 10.
  • a collar 20 is attached to and extends through the centre of the top wall 12.
  • the collar 20 is threaded on a support ring 22 which is fixed to the top wall of the housing.
  • the collar 20 is secured against rotation with respect to the threaded support 22 by a locking nut 24.
  • the rotor 30 is rotatably coupled to the collar 20.
  • the rotor 30 comprises at least one outwardly directed tubular arm 32.
  • the rotor is provided with two oppositely directed tubular arms 32 which are attached to a hollow T-shaped connector piece 33.
  • a downwardly directed nozzle 34 is secured to the end of the arm 32.
  • the rotor 30 comprises a transit conduit adapted to carry cleaning fluid under pressure to the nozzle 34.
  • the nozzle 34 has a discharge orifice to direct the cleaning fluid under pressure through the open side of the housing to the surface to be cleaned.
  • the nozzle 34 is directed at an inclined angle, preferably about 7°, with respect to the rotation axis of the rotor 30 so that the reaction force on the nozzle, due to discharge of fluid under pressure from the nozzle, will turn the arm 32 in the direction of the arrow A shown in Figure 1, and thereby provide a revolving motion of the rotor, which is preferably in the range of 400 - 600 rpm.
  • the cleaning fluid thus describes a circular pattern over the surface to be cleaned.
  • the distance from the bottom edge 16 to the orifice of the nozzle 34 can be adjusted by rotation of the collar 20 within the threaded support 22.
  • the cleaning effect of the tool can be adapted to the circumstances and the particular surface to be cleaned.
  • the collar 20 defines a part of the inlet conduit.
  • the inlet conduit receives the high-pressure cleaning fluid from the high-pressure cleaner.
  • the collar 20 is connected via a swivel 26 to a quick coupling 28.
  • the quick coupling 28 can be connected to the lance or the spray gun of the high-pressure cleaner.
  • the inlet conduit 24 extends from the coupling 28 via the swivel 26 to the collar 20.
  • the transit conduit extends in the rotor 30 from the inlet conduit to the outlet nozzle 34. The high-pressure cleaning fluid thus reaches the nozzle via the inlet conduit and thereafter the transit conduit.
  • the rotary coupling between the rotor 30 and the collar 20 comprises an upper bearing bush 25 and a lower bearing bush 27 which are placed within the collar 20.
  • the rotor extends through the lower bearing bush 27 and upwards into the upper bearing bush 25.
  • the upper bearing bush 25 defines a through-passage 29 for passage of the cleaning fluid and for receiving the uppermost part of the rotor 30.
  • the uppermost part of the rotor 30 is a sleeve 38 which fits tightly within the through-passage 29 of the upper bearing bush 25.
  • the lower bearing bush 27 serves in combination with a flange 39 on the rotor 30 as an axial bearing.
  • the cross-sectional area of the passageway 29 is significantly smaller than the cross-sectional area of the passageway 23 in the collar 20.
  • the flow speed of the cleaning fluid in the narrow passageway 29 is therefore significantly higher than the flow speed of the cleaning fluid in the passageway 23 in the collar 20.
  • the increased flow speed in the narrow through-passageway 29 results in accordance with Bernoulli's law in a lower pressure in the narrow through-passage 29 with respect to the pressure in the passageway 23. Accordingly, the sealing of the rotational connection can be achieved by a tight fit between the sleeve 38 and the passageway 29 in the upper bearing bush 25, without the need of additional resilient means.
  • the rotary connection between the rotor 30 and the collar 20 does not necessarily have to include all the features as described in the above embodiment, i.e. the rotor does not necessarily have to extend into the narrow passageway 29. It is sufficient if a narrow passageway is provided just before the transition between the stationary part of the inlet conduit and the rotating part, i.e. the transit conduit.
  • a handle is attached to the housing 10. Further the swivel 26 allows the tool to adapt its angular position with respect to the spray gun.
  • the height adjustment of the collar 20 does not necessarily have to be carried out as described above. Any conventional locking means that allow axial repositioning could be suitable.

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  • Nozzles (AREA)
EP99102495A 1999-02-10 1999-02-10 Reinigungsgerät Withdrawn EP1027935A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99102495A EP1027935A1 (de) 1999-02-10 1999-02-10 Reinigungsgerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99102495A EP1027935A1 (de) 1999-02-10 1999-02-10 Reinigungsgerät

Publications (1)

Publication Number Publication Date
EP1027935A1 true EP1027935A1 (de) 2000-08-16

Family

ID=8237529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102495A Withdrawn EP1027935A1 (de) 1999-02-10 1999-02-10 Reinigungsgerät

Country Status (1)

Country Link
EP (1) EP1027935A1 (de)

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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748050A (en) * 1971-11-12 1973-07-24 Chaska Chem Co Inc Cleaner assembly
DE2548432A1 (de) * 1974-10-30 1976-05-13 Bernard Eaton Hart Vorrichtung zur erzeugung eines rotierenden duesen- oder spruehstrahles
US4895179A (en) * 1987-05-13 1990-01-23 Harben Systems Limited Cleaning apparatus
US4903364A (en) * 1988-07-08 1990-02-27 Long Jerry T Cleaning underlying surfaces
US5135015A (en) * 1990-02-12 1992-08-04 Young's Hovercover, Inc. Pressurized fluid cleaning device
US5265805A (en) * 1992-08-17 1993-11-30 Artenian Steven M Rotary lance cleaning apparatus
US5284298A (en) * 1993-04-13 1994-02-08 Fluid Controls Inc. Fluid-conducting swivel and method
US5531380A (en) * 1994-03-15 1996-07-02 Thompson, Sr.; Earl E. Nozzle device with jet seal and method
US5711051A (en) * 1996-04-01 1998-01-27 Professional Chemicals Corporation Hard surface cleaning appliance

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748050A (en) * 1971-11-12 1973-07-24 Chaska Chem Co Inc Cleaner assembly
DE2548432A1 (de) * 1974-10-30 1976-05-13 Bernard Eaton Hart Vorrichtung zur erzeugung eines rotierenden duesen- oder spruehstrahles
US4895179A (en) * 1987-05-13 1990-01-23 Harben Systems Limited Cleaning apparatus
US4903364A (en) * 1988-07-08 1990-02-27 Long Jerry T Cleaning underlying surfaces
US5135015A (en) * 1990-02-12 1992-08-04 Young's Hovercover, Inc. Pressurized fluid cleaning device
US5265805A (en) * 1992-08-17 1993-11-30 Artenian Steven M Rotary lance cleaning apparatus
US5284298A (en) * 1993-04-13 1994-02-08 Fluid Controls Inc. Fluid-conducting swivel and method
US5531380A (en) * 1994-03-15 1996-07-02 Thompson, Sr.; Earl E. Nozzle device with jet seal and method
US5711051A (en) * 1996-04-01 1998-01-27 Professional Chemicals Corporation Hard surface cleaning appliance

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

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