EP0039558A2 - Wischer - Google Patents

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Publication number
EP0039558A2
EP0039558A2 EP81301804A EP81301804A EP0039558A2 EP 0039558 A2 EP0039558 A2 EP 0039558A2 EP 81301804 A EP81301804 A EP 81301804A EP 81301804 A EP81301804 A EP 81301804A EP 0039558 A2 EP0039558 A2 EP 0039558A2
Authority
EP
European Patent Office
Prior art keywords
brush
sweeper
bristles
swept
receptacle
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Withdrawn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
EP81301804A
Other languages
English (en)
French (fr)
Other versions
EP0039558A3 (de
Inventor
Michael Edward Gailes
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.)
Numatic International Ltd
Original Assignee
Numatic International 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 Numatic International Ltd filed Critical Numatic International Ltd
Publication of EP0039558A2 publication Critical patent/EP0039558A2/de
Publication of EP0039558A3 publication Critical patent/EP0039558A3/de
Withdrawn legal-status Critical Current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
    • A47L11/40—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
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • 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
    • A47L11/22—Floor-sweeping machines, hand-driven
    • 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
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • 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
    • A47L11/4041—Roll shaped surface treating tools

Definitions

  • the present invention relates to a ground sweeper and to rotary brush assemblies for use therein.
  • Ground sweepers particularly carpet sweepers have long been known to comprise a wheeled frame for translational movement over a surface to be swept, said frame carrying a dust receptacle and a brush assembly, said assembly being driven by a motor or from gearing associated with at least one of the wheels on which the frame rides during translational movement across a surface to be swept.
  • the brush assembly delivers dirt separately to the dust receptacle by means of a dust conduit which is constituted in part by an elongate opening parallel with the axis of the rotary brush, the lower edge defining said opening being generally in close contact with the remote free ends of the bristles of the respective brush.
  • a dust conduit which is constituted in part by an elongate opening parallel with the axis of the rotary brush, the lower edge defining said opening being generally in close contact with the remote free ends of the bristles of the respective brush.
  • an improved sweeper of the type of which includes two counter rotating rotary brushes disposed in parallel juxtaposition, the nature of the brushes and the speed at which they are rotated being sufficient to form a current of entraining air to carry the dust along a single combined entrainment path to the receptacle.
  • the invention further includes a sweeper having a wheeled frame for translational movement over a surface to be swept, said frame bearing a dust receptacle and a driven pair of juxtaposed rotary brushes the arrangement being such that on translational movement of the frame the brushes counter-rotate to lift dirt and dust along a combined entrainment path to the receptacle.
  • the second brush may be provided with infill pieces between adjacent lines of bristle to prevent lodgement of debris therebetween.
  • the first sweeper brush is a rummage brush comprising substantially continuous brushes or blades which in use have a generally fan effect.
  • the brush may comprise a plurality of radial, circumfentially spaced continuous bristles or may be blades of rubber, plastics or like materials.
  • said brush may comprise an axle, a plurality of linear bristle asemblies radially disposed at equally spaced intervals about the circumference of the said axle, the unsupported length of the bristles exceeding five times or ten times the radius of the axle per se.
  • three to five bristle assemblies are provided.
  • the first and second brushes may be disposed toward the intended front end of the frame, the axles of said brushes being transverse to the intended direction of translational movement.
  • the bristles of the second or rear brush only may be in brushing contact with the surface to be swept; the remote ends of the bristles of the front brush being arranged to clear the ground so that the front brush acts mainly as a fan to entrain dust and dirt disturbed by the rear brush.
  • the ground clearance of the first brush is up to 4 inches preferably between 1 ⁇ 2 inch and 1i inches.
  • the rear brush rotates at a faster speed than the front brush and in particular it is most preferred that the peripheral speed of the outermost ends of the bristles of the front brush is between 50% and 75% slower than the corresponding peripheral speed of the rear brush.
  • the bristles of the front brush have a peripheral speed of 65% that of the peripheral speed of the bristles of the rear brush.
  • the front brush is of a larger diameter than the small brush and the linear bristle assemblies thereon may provide sufficient space therebetween to accommodate a beer can or paper cup so that the sweeper of this invention may be used in public places such as parks, railway stations and football grounds.
  • the rotary brushes may be driven by gearing associated with at least one of the ground contact wheels upon which the frame effects translational movement.
  • the receptacle may be integral with the frame and be provided with a removable lid, but most preferably it is arranged that the receptacle is removable from the frame for emptying as desired.
  • a sweeper of the invention is formed of a pair of frame members 1 of substantially rectangular configuration which are spaced apart and adapted to ride substantially perpendicular to the ground. Both frame members are substantially identical and comprise a rear upright 22 terminating at its lower end in a road wheel on a castor assembly 2.
  • a crush bend is formed at the upper end of said rear upright frame member to provide an upper frame member 18 adapted in use to be substantially parallel to the ground.
  • the upper frame member terminates at its forward end in a crush bend through 90° to form a forward frame member 19 substantiaaly perpendicular to the ground in use.
  • the Lower end of the forward frame member 19 terminates in a crush bend to provide a lower frame member 20 parallel to the upper frame member 18 and terminating at its rearend in an angled crush bend to provide angled rear frame member 21 to which handle 4 is attached.
  • the frame members 1 are spaced apart by means of spacing members provided at each crush bend.
  • a removable dust receptable 6 Disposed between the two parallel frame members 1 is a removable dust receptable 6 having a cover 5 and terminating at its forward end in a dust slot 17 constituting a substantially horizontally disposed slot through which entrained dust passes from the brushes to the receptacle.
  • the lower horizontal edge of the dust slot 17 is angled forwardly to form a lower deflector plate 15.
  • an upper deflector plate 14 Disposed forwardly of the dust slot 17 is an upper deflector plate 14 which forms with the lower deflector plate 15 a passage through which dust can pass.
  • the upper deflector plate 14 is carried on the undersruface of a brush cover 13 which extends from the receptacle cover 5 to the forward edge of the sweeper and thence downwardly against and about forward frame member 19 to a position approaching half-way between the upper frame member 19 and the lower frame member 20.
  • a pair of paddle wheel brushes 7 and 8 are disposed in the space between the forward frame member 19 and the receptacle 6. These rotary brushes have parallel axles 11 and 12 respectively, each journalled at their remote ends for rotation in bearing assemblies (not shown). Both axles are driven by a gearing assembly associated with forward road wheels (which gear train has been omitted since it is of standard form). The gear train is so arranged that at a translational speed of 1 mile per hour the larger brush 7 rotates at 220 rpm., and the smaller brush rotates at 660 rpm. while the main driving wheel rotates at 39 rpm.
  • the small rotary paddle wheel brush 8 comprises 4 bristle assemblies 10' the bristle assembly having a free unsupported length approximately 5 times the diameter of the axle.
  • the axle 12 is adjustable vertically so as to bring the remote ends of the bristles 10' into scrubbing contact with the ground 9.
  • the axle 12 may be adjusted downwardlyaid slightly forwardly for wear occasioned by the scrubbing action of the bristles on the ground.
  • the lower deflector plate 15 is vertically slotted along its length and held in position by suitable nut and bolt assemblies whereby it may be moved vertically with the axle 12 in order that the deflector plate 15 is always correctly positioned.
  • the small paddle wheel brush 8 may be further provided between adjacent bristle assemblies 10' with an insert piece 30 is shown in greater detail in Figure 2.
  • the insert piece comprises an arcuate outer portion 31 a pair of radial edge walls 32 and a recessed portion 33 provided towards the inter extremity of the insert portion.
  • the insert portion 30 is formed as an extrusion of a plastics material and the longitudinal side walls 32 can be sprung inwardly so that the recess 33 engages a corresponding projection (not shown) along the base of each bristle assembly 10'.
  • debris lifted by bristles 10 of the forward brush assemblies 7 can be carried by bristles 10' and associated in said portion 30 without the debris becoming jammed within the quandant between adjacent bristle assemblies 10' and is then carried over a threshold guide 15 into receptical 6.
  • the large rotary paddle wheel brush 7 has four bristle assemblies 10 equally spaced about the circumference of the axle 11.
  • the unsupported length of the bristle assembly 10 is approximately ten times the diameter of the axle 11 and the remote ends of the bristle assembly 10 are arranged to rotate just clear of the ground surface 9. Since the paddle wheel 7 rotates against the direction of translational movement of the sweeper and because of the large spaces provided between the bristle assemblies 10 items such as paper cups and beer cans can pass under the cover 13 and become lodged between adjacent bristle assemblies 10. Such items are then propelled mainly by centrifugal force into the dust receptacle 6, usually contacting the upper deflector plate 4 en route. Although means for vertical and horizontal adjustment of the axle 11 may be provided, this is not so necessary as it is for brush 8 since the remote ends of the bristle assemblies 10 do not wear to the same extent.
  • an operative grasps the handle 4 and propels the sweeper over the ground to be swept.
  • an internal combustion engine or an electric motor may be incorporated either to drive either the brushes only or to supply power to the driven road wheels.
  • means may be provided whereby the operative may ride upon the vehicle which is then self-powered.
  • the large brush 7 does not contact the ground 9 and acts essentially to provide vigorous air flow to the dust receptacle 6. However, as stated before it will also act to pick up larger objects such as beer cans and paper cups and compel them, mainly by centrifugal force into the dust receptacle 6. When the dust receptacle approaches full the operator merely removes it to a convenient site and empties it in the usual fashion. It may then be replaced and the sweeping process continued. If a particularly large item becomes jammed under the brush cover 13 it is simple to remove the brush cover 13 and clear the obstruction.

Landscapes

  • Cleaning In General (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
EP81301804A 1980-04-24 1981-04-23 Wischer Withdrawn EP0039558A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8013493 1980-04-24
GB8013493 1980-04-24
GB8032402 1980-10-08
GB8032402 1980-10-08

Publications (2)

Publication Number Publication Date
EP0039558A2 true EP0039558A2 (de) 1981-11-11
EP0039558A3 EP0039558A3 (de) 1982-08-04

Family

ID=26275309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81301804A Withdrawn EP0039558A3 (de) 1980-04-24 1981-04-23 Wischer

Country Status (5)

Country Link
EP (1) EP0039558A3 (de)
DK (1) DK180981A (de)
ES (1) ES502074A0 (de)
IE (1) IE51347B1 (de)
PT (1) PT72916B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050470A1 (de) * 1980-10-17 1982-04-28 Numatic International Limited Fussbodenkehrmaschine
FR2617392A1 (fr) * 1987-07-01 1989-01-06 Hoky Kk Dispositif deflecteur de poussiere pour appareil de nettoyage
WO1993018699A1 (en) * 1992-03-18 1993-09-30 Cleamatool A/S Floor cleaning machine
DE4236030A1 (de) * 1992-10-24 1994-04-28 Kaercher Gmbh & Co Alfred Reinigungsvorrichtung für die Bodenreinigung
WO2010041185A1 (en) * 2008-10-07 2010-04-15 Koninklijke Philips Electronics N.V. Cleaning device with rotating brushes
CN109700388A (zh) * 2019-02-21 2019-05-03 湖北滴水科技有限公司 一种扫地机滚筒结构
US10842338B2 (en) 2015-04-24 2020-11-24 Carl Freudenberg Kg Manually-displaceable cleaning device having counter-rotatable rollers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2367741B1 (es) * 2011-07-19 2012-07-16 Luis Sans Vollmer Utensilio de limpieza.
CN110017441A (zh) * 2019-03-05 2019-07-16 泉州台商投资区五季网络有限公司 轨道交通用区间隧道灯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1805518A1 (de) * 1968-10-26 1970-05-21 Fernmelde Und Elektrobau Siebe Handbetriebene,selbstaufnehmende Kehrmaschine fuer Innen- und Aussenflaechen
DE2060377A1 (de) * 1969-12-09 1971-06-16 Nippon Seal Co Teppichreiniger
DE1628694A1 (de) * 1967-02-20 1971-06-24 Leifheit Internat Guenter Leif Teppichkehrer
DE2605832A1 (de) * 1976-02-13 1977-08-18 Leifheit International Kehrgeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1628694A1 (de) * 1967-02-20 1971-06-24 Leifheit Internat Guenter Leif Teppichkehrer
DE1805518A1 (de) * 1968-10-26 1970-05-21 Fernmelde Und Elektrobau Siebe Handbetriebene,selbstaufnehmende Kehrmaschine fuer Innen- und Aussenflaechen
DE2060377A1 (de) * 1969-12-09 1971-06-16 Nippon Seal Co Teppichreiniger
DE2605832A1 (de) * 1976-02-13 1977-08-18 Leifheit International Kehrgeraet

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050470A1 (de) * 1980-10-17 1982-04-28 Numatic International Limited Fussbodenkehrmaschine
FR2617392A1 (fr) * 1987-07-01 1989-01-06 Hoky Kk Dispositif deflecteur de poussiere pour appareil de nettoyage
GB2206480A (en) * 1987-07-01 1989-01-11 Hoky Kk Floor cleaner
US4813092A (en) * 1987-07-01 1989-03-21 Kabushiki Kaisha Hoky Dust reflecting and introducing plate in cleaner
GB2206480B (en) * 1987-07-01 1990-11-21 Hoky Kk Dust reflecting and introducing plate in cleaner
WO1993018699A1 (en) * 1992-03-18 1993-09-30 Cleamatool A/S Floor cleaning machine
DE4236030A1 (de) * 1992-10-24 1994-04-28 Kaercher Gmbh & Co Alfred Reinigungsvorrichtung für die Bodenreinigung
WO2010041185A1 (en) * 2008-10-07 2010-04-15 Koninklijke Philips Electronics N.V. Cleaning device with rotating brushes
US10842338B2 (en) 2015-04-24 2020-11-24 Carl Freudenberg Kg Manually-displaceable cleaning device having counter-rotatable rollers
CN109700388A (zh) * 2019-02-21 2019-05-03 湖北滴水科技有限公司 一种扫地机滚筒结构
CN109700388B (zh) * 2019-02-21 2024-06-18 湖北穿石智能电器有限公司 一种扫地机滚筒结构

Also Published As

Publication number Publication date
ES8301102A1 (es) 1982-12-16
ES502074A0 (es) 1982-12-16
IE51347B1 (en) 1986-12-10
PT72916A (en) 1981-05-01
IE810913L (en) 1981-10-24
PT72916B (en) 1982-03-30
EP0039558A3 (de) 1982-08-04
DK180981A (da) 1981-10-25

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19830712

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GAILES, MICHAEL EDWARD