EP0037674A1 - Vacuum cleaning appliances - Google Patents

Vacuum cleaning appliances Download PDF

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Publication number
EP0037674A1
EP0037674A1 EP81301255A EP81301255A EP0037674A1 EP 0037674 A1 EP0037674 A1 EP 0037674A1 EP 81301255 A EP81301255 A EP 81301255A EP 81301255 A EP81301255 A EP 81301255A EP 0037674 A1 EP0037674 A1 EP 0037674A1
Authority
EP
European Patent Office
Prior art keywords
socket
appliance
vacuum cleaning
pipe member
cleaning appliance
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.)
Granted
Application number
EP81301255A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0037674B1 (en
Inventor
James Dyson
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.)
Individual
Original Assignee
Individual
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
Priority claimed from US06/140,497 external-priority patent/US4373228A/en
Application filed by Individual filed Critical Individual
Priority to AT81301255T priority Critical patent/ATE14665T1/de
Publication of EP0037674A1 publication Critical patent/EP0037674A1/en
Application granted granted Critical
Publication of EP0037674B1 publication Critical patent/EP0037674B1/en
Expired 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/32—Handles
    • A47L9/322—Handles for hand-supported suction cleaners
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/08—Nozzles with means adapted for blowing

Definitions

  • This invention relates generally to vacuum cleaning appliances and more particularly, but not exclusively, to portable electrically operated vacuum appliances intended for domestic use.
  • Vacuum cleaning appliances of this kind include an electrically driven fan whereby dust, grit and other dirt ingrained in a carpet is removed by suction, the dirt being deposited in a removable container such as a bag.
  • An upright-type cleaner of the above kind usually comprises a housing for the fan unit, the housing having a carpet engaging section which may incorporate rotatable brushes.
  • the machine is usually manipulated by a rigid handle pivotally mounted on the casing of the appliance.
  • a cylinder type machine'of the above kind usually comprises a main casing containing the fan unit and having an inlet opening for receiving a flexible hose to which suitable fittings may be attached.
  • An object of the present invention is to provide a vacuum cleaning appliance which incorporates the advantages of both types of machines and which is so constructed that the machine may be easily and quickly converted from one typeto the other as desired.
  • the cleaning appliance of the invention may therefore be used as an upright type machine movable over a carpet to be cleaned by means of its handle which in the preferred embodiments of the invention consists of a rigid tubular pipe member mounted within a flexible hose connected to the casing of the cleaner.
  • the inner end of the pipe member In the upright operation of the cleaner the inner end of the pipe member is slidably projected through the surrounding flexible hose and is located within an opening in the casing to provide a rigid handle for manoeuvrering the machine.
  • the end of the pipe member seats within the opening in the casing so as to close the inner end of the pipe member and it furthermore acts to maintain open a spring operated valve member located in the passageway connecting the motor driven fan unit with the floor engaging section of the cleaner.
  • the handle In order to convert the cleaner for cylinder type operation the handle is slidably removed from the opening in the casing so as to provide a rigid pipe member mounted within the end of the surrounding flexible hose connected to the casing.
  • the removal of the pipe member from the opening in the casing furthermore releases the valve member which under the action of its spring closes off the connection between the fan unit and the carpet engaging section, and thereby communicates the fan unit directly with the hose member and its associated pipe member which now forms the carpet engaging member of the cleaner.
  • various attachments can be fitted to the end of the pipe member in accordance with conventional practice, for example for the cleaning of curtains and furniture.
  • a further related object of the invention is to provide the cleaner with an improved brush unit in the carpet engaging section of the appliance.
  • the vacuum cleaning appliance of the invention is shown in its upright mode of operation and it comprises a main casing 10 which is detachably fitted to the top of a casing 11 containing the electric motor and fan unit.
  • the main casing 10 is provided with a rigid U-shaped carrying handle 12 which is connected at its ends to the opposite side portions 13 of the main casing.
  • the motor casing 11 is fitted at opposite sides with a pair of supporting wheels 15 (see Figure 3) for the appliance and the casing also includes an on- off push switch 16 for controlling the operation of the electric motor.
  • a lower cleaner head 17 for engaging a carpet to be cleaned is pivotally mounted on the motor casing 11 so that during use of the appliance the main casing may be pivoted relatively to the cleaner head 17 to allow the passage of the appliance under low furniture such as a bed.
  • the motor casing 11 is provided with an extension 18 which forms a rigid socket for slidably receiving the lower end of a tubular pipe or wand 19.
  • the pipe 19 at its upper end is fitted with a hand grip 20 and forms a handle for manoeuvrering the appliance.
  • the pipe 19 slidably fits within a stretch, retractable flexible hose 21 which is secured at its lower end around the upper open end of the extension 18 of the casing.
  • the arrangement is such that the pipe 19 when fitted in the socket of the extension 18 enables the handle to be used for manoeuvrering the appliance as an upright type machine.
  • the pipe 19 is slidably removed from the socket in the extension 18 the pipe 19 is then used as a cleaner head at the end of the flexible hose 21 thus converting the appliance into a cylinder type machine.
  • the fitting of the pipe 19 in hose 21 and the conversion of the appliance from one mode of operation to the other and vice versa will be described hereinafter in greater detail.
  • Figure 3 of the drawings provides a section through the lower part of main casing 10, motor casing 11 and cleaner head 17 of the appliance.
  • the main casing 10 provides a housing for the cleaner unit which may be of any conventional type including e.g. dust bags.
  • the cleaner unit consists of a pair of cyclones 22 and 23 which are located in series in the air flow through the.appliance and which operate to remove by centrifugal action the dust and other dirt engrained in the air.
  • the construction and operation of such cleaning units are described and claimed in my co-pending application.
  • the cyclones 22, 23 at their lower larger ends are interconnected centrally of the casing so as to provide an intercommunicating passageway 24 (see Figure 4) for the air flow through the appliance.
  • the cyclones 22, 23 are spaced from the casing 10 to form therebetween and externally of the cyclones a chamber 32 for receiving dust and other dirt removed from the air flow by the cyclone units.
  • the hose 45 at its upper end is attached to a short rigid pipe 48 which extends through a horizontal plate 49, which plate is attached to- and forms the top plate of the motor casing 11.
  • the pipe 48 connects with a curved entry pipe 49 so as to direct the air flow as shown by the arrows into the base of the cyclone 22 in a tangential manner (see also Figures 4 and 5), the air then spiraling up the inner surface of the curved wall of the cyclone to deposit engrained dust and dirt by centrifugal action over the top edge of the cyclone.
  • the air flow then passes centrally down the cyclone into a pipe 50 formed in the top plate 49 and then enters the transverse passageway 24.
  • the air flow then enters the lower part of the cyclone 23 also in a tangential manner (see Figure 4) and is again processed in the cyclone so as to remove any further remaining fine dust and dirt.
  • the air flow then passes centrally down the cyclone 23 to enter a pipe 51 upstanding from the plate 49.
  • the air flow exits from the pipe 51 into the fan and motor chamber 52 of the casing 11, and is then discharged through an aperture 53 into the cleaner head casing 47 from which it discharges into the carpet through an elongated slot 54 (see Figure 8) formed in the casing.
  • the air flow may discharge directly into the atmosphere from a side slot in the casing.
  • the plate 49 forming the top plate of the motor casing 11 has an outer peripheral flange 55 which seats in the lip 56 of a housing 57 providing the lower part of the casing 11.
  • the plate 49 is attached to the housing 57 by connecting bolt 58 and nut 59, the bolt extending through a chamber 60 which communicates with the inlet pipe 48 by means of an aperture 61 (see Figure 3).
  • the chamber 60 also communicates with hollow shaft 27 which is provided with a control knob (not shown).
  • the user of the appliance may progressively vent the inlet passageway of the appliance to atmosphere and so vary at will the degree.of suction exerted on the carpet being cleaned. This control of the appliance is available whether the appliance is operating in its upright or cylinder mode of operation.
  • the casing 11 consisting of the top plate 49 and the housing 57 to which it is connected provides firstly the chamber 52 for the motor 64 and the fan 65, and secondly a chamber 66 in which is mounted a spring loaded reel 67 for the electric supply cable 68 of the appliance.
  • the lower cleaner head casing 47 is elongated in shape and extends across the width of the appliance having a pair of spaced upstanding arms 69 and 70 which are pivotally attached to the casing 11 by means of pivot pins 71 located within slots in the bottom housing 57.
  • the casing 47 is provided with the exit pipe 46 previously mentioned and also formed with a chamber 72 provided by walls 73 upstanding from the casing 47 and which slidably engage the lower wall of the housing 57 around the aperture 53.
  • the cleaner head casing 47 furthermore has a longitudinal open-sided slot 74 in which is located a rotatable brush unit 75.
  • the brush unit comprises opposite sets of bristles and is mounted on a longitudinal shaft 76 pivotally mounted in the end walls 77 of the casing.
  • the shaft 76 also supports the plates 78 which are toothed and one of which comprises a ratchet which is engaged by a pawl 79 during one direction of rotation of the brush unit.
  • the brush unit 75 rotates freely while in contact with the carpet, but during reverse movement as shown in Figure 10 the pawl 79 engages a ratchet tooth 80 on the corresponding plate 78 so as to prevent reverse movement of the brush unit 75 and which thereby provides a brushing effect to the carpet.
  • the opposite sets of bristles preferably passed between spaced plates 81 (see particularly Figure 3) so as to remove therefrom any accumulated fluff and other dirt which is then sucked into the appliance through the pipe 46.
  • the vacuum cleaning appliance of the invention as shown in the drawings is primarily intended for operation as an upright type cleaner, the appliance being manoeuvred by the handle 20 on the end of the tubular pipe 19 which fits the socket in the extension 18 of the motor casing 11.
  • the invention however provides that the appliance may be quickly and simply converted for operation as a cylinder type cleaner and vice versa, merely by the removal and insertion of the tubular pipe or wand 19 in the socket of the casing extension 18.
  • Figure 5 shows the pipe or wand 19 inserted in the extension 18 which provides an open socket 82 for slidably receiving the lower end of the pipe.
  • the socket 82 provides an end seat 83 for the end of the pipe 19, but in its operating mode as an upright cleaner as shown in Figure 5 the end of the pipe is held spaced from the seat 83 by a valve device shown generally by the reference 85.
  • the valve device 85 controls an aperture 84 in the side wall of the socket 82 which communicates the socket with the inlet pipe 48 of the appliance.
  • the valve device is pivotally mounted at 86 on the casing and it comprises a valve member 87 normally closing the aperture 84. At the other side of the pivot point 86 the valve device has an open sided housing 88 in which is mounted a compression spring 89 normally urging the valve device in an anti-clockwise direction to open the aperture 84.
  • a switch member 90 is also mounted pivotally on the valve device and is movable relatively thereto. The switch member 90 is formed with a bore which contains a compression spring 94 acting against a slidable plunger 93.
  • valve device 85 pivots anti-clockwise under the action of its spring 89 to the position shown in Figure 7.
  • valve. member 87 engages the top edge of the wall of the pipe 48 to allow the-plunger to re-engage the opposite side of the line from the pivot point 86 which thus allows anti-clockwise pivotal movement of the switch member 90 relative to the valve device. This sets the switch member for subsequent engagement with the pipe 19 when the pipe is reinserted in the socket 82 for conversion to the upright mode of operation of the appliance.
  • valve device 85 may be actuated manually from the exterior of the casing or it may be controlled electrically from the handle of the appliance. In such arrangements the wand handle would be fitted in the flexible hose to engage the locating socket as previously described.
  • the pipe or wand 19 is slidably mounted in hose 21 and at its inner or lower end it is fitted with a fixed sleeve 96.
  • the hose 21 is connected at its lower end to the socket 82 by a cuff 97, the hose having a PVC sleeve 98 bonded to the cuff.
  • the upper end of the hose includes a further PVC sleeve 99 bonded to the cuff 95 which includes a felt or similar seal 100 in sliding contact with pipe 19.
  • pipe 19 is shown in the inserted or upright mode of operation of the appliance.
  • the pipe 19 In order to re-convert the appliance for upright mode of operation the pipe 19 is merely re-inserted slidably within the short upright tubular casing 82. This manoeuvre is generally facilitated by closing the open end of the pipe handle 20 while the fan is operating, the resulting suction acting to straighten the hose 21 which enables the pipe 19 to be slidably moved therein without difficulty.
EP81301255A 1980-03-26 1981-03-24 Vacuum cleaning appliances Expired EP0037674B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81301255T ATE14665T1 (de) 1980-03-26 1981-03-24 Saugreinigungsvorrichtungen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8010098 1980-03-26
GB8010098 1980-03-26
US140497 1980-04-15
US06/140,497 US4373228A (en) 1979-04-19 1980-04-15 Vacuum cleaning appliances

Publications (2)

Publication Number Publication Date
EP0037674A1 true EP0037674A1 (en) 1981-10-14
EP0037674B1 EP0037674B1 (en) 1985-08-07

Family

ID=26274968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81301255A Expired EP0037674B1 (en) 1980-03-26 1981-03-24 Vacuum cleaning appliances

Country Status (8)

Country Link
EP (1) EP0037674B1 (pt)
CA (1) CA1162362A (pt)
DE (1) DE3171655D1 (pt)
DK (1) DK137581A (pt)
ES (1) ES501170A0 (pt)
HK (1) HK82386A (pt)
MY (1) MY8700109A (pt)
NO (1) NO152772C (pt)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000277A1 (en) * 1983-07-08 1985-01-31 James Dyson Improvements in vacuum cleaning appliances
EP0134654A1 (en) 1983-07-08 1985-03-20 Notetry Limited Improvements in vacuum cleaners
WO1986007247A1 (en) * 1985-06-05 1986-12-18 Stefan Jacek Moszkowski Suction conduit device connectable to a floor vacuum cleaner or a central suction system
WO2000021425A1 (en) * 1998-10-08 2000-04-20 Dyson Limited Changeover valve
WO2000021426A1 (en) * 1998-10-08 2000-04-20 Dyson Limited A cleaner head assembly for a vacuum cleaner
WO2000021427A1 (en) * 1998-10-08 2000-04-20 Dyson Limited A cleaner head assembly for a vacuum cleaner
WO2000036968A1 (en) * 1998-12-18 2000-06-29 Dyson Limited Cyclonic vacuum cleaner
WO2000036965A1 (en) * 1998-12-18 2000-06-29 Dyson Limited Vacuum cleaner
US6605156B1 (en) 1999-07-23 2003-08-12 Dyson Limited Robotic floor cleaning device
US6607572B2 (en) 2001-02-24 2003-08-19 Dyson Limited Cyclonic separating apparatus
WO2008017803A1 (en) * 2006-08-08 2008-02-14 Dyson Technology Limited Handle assembly for a cleaning appliance
GB2455227A (en) * 2004-12-10 2009-06-03 Hoover Co Valve assembly with blocking member
US7891050B2 (en) 2004-07-22 2011-02-22 Dyson Technology Limited Handle assembly for a cleaning appliance
US8240003B2 (en) 2004-07-22 2012-08-14 Dyson Technology Limited Handle assembly for a cleaning appliance
US8327504B2 (en) 2007-12-22 2012-12-11 Dyson Technology Limited Wand assembly for a cleaning appliance
DE102012208685A1 (de) 2012-05-24 2013-11-28 BSH Bosch und Siemens Hausgeräte GmbH Düse mit einer Bürstenwalze für einen Staubsauger und Staubsauger
EP4056088A1 (en) * 2021-03-09 2022-09-14 Candy Hoover (Suzhou) Co. Ltd. Floor cleaning head

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267371A (en) * 1992-02-19 1993-12-07 Iona Appliances Inc. Cyclonic back-pack vacuum cleaner
US5558697A (en) * 1992-12-08 1996-09-24 Notetry Limited Dual cyclonic vacuum cleaner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703186A1 (de) * 1968-04-13 1971-04-08 Emil Wittern Staubsauger mit gesteuert umlaufendem Saugstrom
FR2300535A1 (fr) * 1975-02-17 1976-09-10 Dupoyet Guy Perfectionnements aux aspirateurs
US4155143A (en) * 1977-12-19 1979-05-22 The Hoover Company Separable handle for cleaner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7401147U (de) * 1974-04-18 Ringler B Handbedienbares Absauggerät
US2171248A (en) * 1935-02-21 1939-08-29 Berkel Patent Nv Vacuum cleaning apparatus
GB479455A (en) * 1935-12-23 1938-02-07 Hoover Holding Company Ltd Improvements in or relating to suction cleaners
GB514702A (en) * 1937-06-05 1939-11-15 Hoover Ltd Improvements in or relating to suction cleaners
US2180694A (en) * 1938-08-08 1939-11-21 Walter C Reed Vacuum cleaner
US2394798A (en) * 1944-04-18 1946-02-12 Mcneal Irene Vacuum-type dusting mop
DE1927723U (de) * 1965-07-21 1965-11-25 Siemens Elektrogeraete Gmbh Reinigungsgeraet.
US3675268A (en) * 1970-05-19 1972-07-11 Whirlpool Co Vacuum cleaner
NL7613475A (nl) * 1976-12-03 1978-06-06 Philips Nv Stofzuiger.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703186A1 (de) * 1968-04-13 1971-04-08 Emil Wittern Staubsauger mit gesteuert umlaufendem Saugstrom
FR2300535A1 (fr) * 1975-02-17 1976-09-10 Dupoyet Guy Perfectionnements aux aspirateurs
US4155143A (en) * 1977-12-19 1979-05-22 The Hoover Company Separable handle for cleaner

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134654A1 (en) 1983-07-08 1985-03-20 Notetry Limited Improvements in vacuum cleaners
WO1985000277A1 (en) * 1983-07-08 1985-01-31 James Dyson Improvements in vacuum cleaning appliances
WO1986007247A1 (en) * 1985-06-05 1986-12-18 Stefan Jacek Moszkowski Suction conduit device connectable to a floor vacuum cleaner or a central suction system
GB2357691B (en) * 1998-10-08 2002-03-06 Dyson Ltd A cleaner head assembly for a vacuum cleaner
WO2000021425A1 (en) * 1998-10-08 2000-04-20 Dyson Limited Changeover valve
WO2000021426A1 (en) * 1998-10-08 2000-04-20 Dyson Limited A cleaner head assembly for a vacuum cleaner
WO2000021427A1 (en) * 1998-10-08 2000-04-20 Dyson Limited A cleaner head assembly for a vacuum cleaner
US6572078B1 (en) * 1998-10-08 2003-06-03 Dyson Limited Changover valve
GB2357691A (en) * 1998-10-08 2001-07-04 Notetry Ltd A cleaner head assembly for a vacuum cleaner
WO2000036968A1 (en) * 1998-12-18 2000-06-29 Dyson Limited Cyclonic vacuum cleaner
GB2360961A (en) * 1998-12-18 2001-10-10 Dyson Ltd Cyclonic vacuum cleaner
GB2360961B (en) * 1998-12-18 2002-05-15 Dyson Ltd Cyclonic vacuum cleaner
WO2000036965A1 (en) * 1998-12-18 2000-06-29 Dyson Limited Vacuum cleaner
US6581239B1 (en) 1998-12-18 2003-06-24 Dyson Limited Cleaner head for a vacuum cleaner
US6605156B1 (en) 1999-07-23 2003-08-12 Dyson Limited Robotic floor cleaning device
US6607572B2 (en) 2001-02-24 2003-08-19 Dyson Limited Cyclonic separating apparatus
US6994740B2 (en) 2001-02-24 2006-02-07 Dyson Limited Cyclonic separating apparatus including upstream and downstream cyclone units
US8240003B2 (en) 2004-07-22 2012-08-14 Dyson Technology Limited Handle assembly for a cleaning appliance
US7891050B2 (en) 2004-07-22 2011-02-22 Dyson Technology Limited Handle assembly for a cleaning appliance
US8720002B2 (en) 2004-07-22 2014-05-13 Dyson Technology Limited Handle assembly for a cleaning appliance
GB2455227A (en) * 2004-12-10 2009-06-03 Hoover Co Valve assembly with blocking member
GB2455227B (en) * 2004-12-10 2009-07-29 Hoover Co Stacked tank arrangement for a cleaning apparatus
US7870637B2 (en) 2004-12-10 2011-01-18 Techtronic Floor Care Technology Limited Stacked tank arrangement for a cleaning apparatus
CN101500464B (zh) * 2006-08-08 2011-09-14 戴森技术有限公司 用于清洁设备的手柄组件
US8225457B2 (en) 2006-08-08 2012-07-24 Dyson Technology Limited Handle assembly for a cleaning appliance
WO2008017803A1 (en) * 2006-08-08 2008-02-14 Dyson Technology Limited Handle assembly for a cleaning appliance
US8327504B2 (en) 2007-12-22 2012-12-11 Dyson Technology Limited Wand assembly for a cleaning appliance
DE102012208685A1 (de) 2012-05-24 2013-11-28 BSH Bosch und Siemens Hausgeräte GmbH Düse mit einer Bürstenwalze für einen Staubsauger und Staubsauger
EP4056088A1 (en) * 2021-03-09 2022-09-14 Candy Hoover (Suzhou) Co. Ltd. Floor cleaning head

Also Published As

Publication number Publication date
HK82386A (en) 1986-11-07
NO152772C (no) 1985-11-20
CA1162362A (en) 1984-02-21
ES8205550A1 (es) 1982-07-01
EP0037674B1 (en) 1985-08-07
NO152772B (no) 1985-08-12
MY8700109A (en) 1987-12-31
DK137581A (da) 1981-09-27
ES501170A0 (es) 1982-07-01
NO811013L (no) 1981-09-28
DE3171655D1 (en) 1985-09-12

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