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WO2001095781A1 - Balayeuses a aspiration - Google Patents

Balayeuses a aspiration Download PDF

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Publication number
WO2001095781A1
WO2001095781A1 PCT/GB2001/002556 GB0102556W WO0195781A1 WO 2001095781 A1 WO2001095781 A1 WO 2001095781A1 GB 0102556 W GB0102556 W GB 0102556W WO 0195781 A1 WO0195781 A1 WO 0195781A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
sweeper
air
collection chamber
sweeper 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.)
Ceased
Application number
PCT/GB2001/002556
Other languages
English (en)
Inventor
John Brian Lund
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
Application filed by Individual filed Critical Individual
Priority to AU2001264070A priority Critical patent/AU2001264070A1/en
Publication of WO2001095781A1 publication Critical patent/WO2001095781A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
    • E01H1/0872—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles with mechanical loosening or feeding instruments for the dirt to be removed pneumatically, e.g. brushes, scrapers
    • 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
    • A47L11/24—Floor-sweeping machines, motor-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
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • 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
    • A47L11/4044—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
    • A47L11/40—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
    • A47L11/4097—Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping

Definitions

  • This invention relates to suction sweepers, and is concerned particularly although not exclusively with suction sweepers for road or pavement (sidewalk) use.
  • suction sweepers A problem with existing suction sweepers is that significant air filtering systems have to be provided, to remove dust particles from air exhausted into the atmosphere. This involves initial expense in construction of the suction sweeper, and continuing expense in maintenance and cleaning of the filtering system.
  • Preferred embodiments of the present invention aim to provide suction sweepers that may be improved in this respect.
  • a suction sweeper comprising a suction source, a suction head connected with the suction source, and a collection chamber connected with the suction head, such that, in use of the sweeper, debris in the vicinity of the head is sucked into the head and from there into the collection chamber: wherein air from the collection chamber is exhausted via an exhaust duct to the suction head, to be recirculated through the collection chamber.
  • Substantially all of the air from the collection chamber may be exhausted via the exhaust duct to the suction head, to be recirculated through the collection chamber.
  • substantially all is meant all air other than that that may escape by unintentional leakage due to imperfections in the suction system.
  • Such a suction sweeper may further comprise recirculation control means for selectively diverting airflow in the exhaust duct between a recirculation path in which the air is directed to the suction head, to be recirculated through the collection chamber, and a non-recirculation path in which the air is exhausted to atmosphere.
  • Said recirculation control means may be controllable to provide adjustable proportions of air which are directed respectively to said recirculation and non-recirculation paths.
  • a suction sweeper as above may further comprise diverting means for selectively diverting airflow in the exhaust duct between a direct path in which the air is directed to the suction head, to be recirculated through the collection chamber, and an indirect path in which the air is directed to the suction head by a route that is less direct than that afforded by said direct path, thereby to reduce potential blow-away of debris in the vicinity of the suction head.
  • Said diverting means may be controllable to provide adjustable proportions of air which are directed respectively to said recirculation and non- recirculation paths.
  • a suction sweeper as above may further comprise a cowl in the vicinity of the suction head, to assist airflow into the suction head.
  • a suction sweeper as above may further comprise first and second cowls in the vicinity of the suction head, to assist airflow into the suction head, the second cowl being closer to the suction head than said first cowl.
  • said first cowl provides at least part of said indirect path and said second cowl provides at least part of said direct path.
  • Said cowl or one of said cowls may be defined by at least part of an assembly for mounting rotatable brushes in the vicinity of the suction head.
  • Said cowl or one of said cowls may be defined by at least part of a chassis of the suction sweeper.
  • a cyclone device is mounted at least partially in said collection chamber, to cause particles of debris to fall into a collection receptacle.
  • a suction sweeper as above may further comprise a removable receptacle arranged to collect debris entrained in the air passing through the collection chamber.
  • Said removable receptacle may comprise a bag.
  • said removable receptacle comprises a wheeled bin.
  • a suction sweeper as above may be designed for road or pavement (sidewalk) use.
  • a suction sweeper as above may be mounted on road wheels.
  • a suction sweeper as above may be provided with a steering system for said road wheels.
  • a suction sweeper as above may be provided with a seat for a driver of the sweeper.
  • a suction sweeper as above may further comprise one or a plurality of brushes for sweeping debris towards the vicinity of the suction head.
  • Figure 1 shows one example of a suction sweeper according to one embodiment of the invention
  • Figure 2 shows another example of a suction sweeper according to another embodiment of the invention.
  • Figure 3 is an exploded view of a detail of the suction sweeper of Figure 2.
  • the suction sweeper 1 that is shown in Figure 1 is designed for road and/or pavement (sidewalk) use, being mounted on road wheels 2.
  • the sweeper 1 is provided with a seat 3 for a driver, who may steer the front road wheels 2 by means of steering wheel 4.
  • a suction system within the sweeper 1 comprises a fan 5 which is connected by a suction duct 6 to a suction head 7.
  • the suction head 7 is arranged to pick up debris form the road or pavement, as the sweeper 1 moves along.
  • the suction head 7 is provided with brushes - for example, integrally, before and/or after the head 7, to sweep the road or pavement.
  • Debris is entrained with air entering the suction tube 6, and travels past the fan 5 to a collection chamber 8, where a collection bag 9 is mounted on the end of a duct leading from the fan 5. Debris entrained in the air entering the chamber 8 is collected in the bag 9, which has a degree of porosity, to allow the air to be exhausted from the chamber 8.
  • the exhaust air from the chamber 8 is led via an exhaust duct 10 back to the suction head 7, where it is again sucked into the suction duct 6, to be recirculated through the suction system and collection chamber 8.
  • the exit of the exhaust duct 10 is so positioned adjacent the entry to the suction tube 6 as to ensure a useful air flow through the suction head 7, in order to entrain debris swept up from the road or pavement.
  • suction sweeper 1 which may be improved over previous suction sweepers, due to the simplicity of construction of the suction chamber 8 with collection bag 9, and the reduced need for significant filtration systems for exhaust air.
  • the suction sweeper 1 is particularly suitable for outdoor use.
  • the fan 5 is positioned downstream of the collection chamber 8, which is positioned above a substantially rigid, plastics waste bin 9, which serves as the receptacle for collecting debris.
  • the bin 9 is provided with wheels 26 and a handle 27, such that it may be conveniently pushed along a pathway, and is of a type known widely as a "wheelie bin”.
  • a cyclone unit 11 is mounted in the collection chamber 8, and, in use, protrudes into the upper area of the wheelie bin 9. The operation of cyclone dust and debris separators is well known, and need not be further explained here.
  • the exhaust duct 10 terminates at the suction head 7, where gully brushes 12 are mounted.
  • a rotating cross brush 13 is located upstream of the suction head 1, at the downstream end of the exhaust duct 10.
  • FIG. 2 shows the chassis 14 of the sweeper 2, the forward end of the chassis 14 being formed as a first cowl 15, located over the gully brushes 12.
  • the underside of the chassis 14 affords a substantially continuous surface (apart from the passage therethrough of the suction tube 6), to define the cowl 15.
  • the gully brushes 12 are mounted on a structure which affords a second cowl 16 in which a suction point 17 for the suction tube
  • the exhaust duct 10 comprises a rear part 18 and a forward part 19. Air from the fan 5 enters an upper part of the rear part 18, within which there is located a first flap 20 which is pivotable about a substantially horizontal axis 21, and is operative to direct air from the fan 5 either through a forward port 22 or a rear port 23 in the rear part 18 of the exhaust duct 10.
  • the first flap 20 is illustrated in a substantially vertical position, in which airflow from the fan 5 is divided between the forward port 22 and the rearward port 23. However, by rotating the first flap 20 about its axis 21, which movement is effected by controls adjacent to a driver when in the seat 3, the airflow from the fan 5 may be directed exclusively either through the forward port 22 or through the rear port 23.
  • a second flap 24 is mounted for rotation about a substantially horizontal axis 25, such that it may be moved between a lower position (as seen in Figure 3) and an upper position, by controls situated adjacent a driver when in seat 3.
  • the sweeper 2 of Figures 2 and 3 can be used in an environment where it is desired to minimise the emission of duct particles into the atmosphere, due to the useful feature of recirculating air from the fan 5 and collection chamber 8 to the suction head 7.
  • the recirculation of air to the suction head 7 can lead a loss in performance of the pick up of debris. For example, if one were to attempt to pick up dry leaves on a fine day, then it may be found that the draught of the returning airflow from the exhaust duct 10, in the vicinity of the suction head 7, causes the light, dry leaves to be blown away such that they escape being sucked up by the suction head 7. In such circumstances, the first flap 20 in the rear part 18 of the exhaust duct 10 may be controlled to exhaust all of the air from the fan 5 out of the rear port 23, in the manner of conventional vacuum sweeping devices. Obviously, one loses the advantage of minimising the admission of dust particles by causing them to recirculate.
  • suction at the suction head 7 can be improved for the particular job in hand, as and when required.
  • a significant feature of the arrangement is that the direction of the exhaust air is selectable - either out rearwardly as in the conventional sweeper (through filters if desired), or forwardly to the suction head 7 to cause recirculation of the dust particles and therefore cause less pollution.
  • a particularly advantageous feature is that a mixture of air diverted forwardly for recirculation or rearwardly for emission can be continuously varied via the first flap 20, so that in the case of specific debris requiring less disturbance (e.g. light leaves or dust) the position of the first flap 20 can be gradually adjusted until a satisfactorily pick up is achieved at the suction head 7. In this selected position, the minimum emission of dust via the rear port 23 is achieved.
  • specific debris requiring less disturbance e.g. light leaves or dust
  • a yet further degree of adjustment is provided via the second flap 24 in the forward part 19 of the exhaust duct 10. With the second flap 24 in its upper position, all of the air coming from the rear part 18 is directed forwardly through the cross brush 13 and directly to the second cowl 16 in the vicinity of the gully brushes 12 and the suction point 17.
  • the sweeper 2 is suitable not only for outdoor use - for example, in environments such as pedestrian precincts (where low dust emission is highly desirable), but is also particularly suitable for use in enclosed environments, where dust emission may be even more undesirable.
  • the sweeper 2 may be used in stables, where cleaning out is a regular task, but where horses can be susceptible to unduly dusty conditions.
  • the second flap 24 may be moved to its lower position as illustrated, in which case the exhaust air is deflected out of the upper port 28 in the forward part 19, to be further directed by the first cowl 15 around the gully brushes 12. Due to the appreciable degree of suction occurring at the suction point 17, such exhaust air tends to be largely drawn again into the suction point 17, but having been diffused into the somewhat greater area defined upwardly via the first cowl 15, re-enters the suction head 7 downwardly from above, rather than forwardly from behind. Thus, debris in the vicinity of the suction head 7 is less likely to be disturbed by this recycling air flow which, when being drawn down from the first cowl 15, may actually assist the entrainment of debris into the suction head 7.
  • very light debris e.g. dry hay or straw
  • the second 24 may also be infinitely adjustable in position between its uppermost and lowermost extremes, thereby to provide a mix of airflows respectively via the first cowl 15 and directly to the second cowl 16.
  • wheelie bin 9 When the wheelie bin 9 is full, it is readily detachable from the chassis of the sweeper 2 upon which it is mounted, such that it may be immediately emptied and replaced for re-use, or replaced by another, empty wheelie bin and left for later collection and/or emptying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)

Abstract

L'invention concerne une balayeuse à aspiration (1) conçue pour être utilisée sur une route et/ou une chaussée (trottoir). Une soufflante (5) est connectée par un conduit d'aspiration (6) à une tête d'aspiration (7). Les débris sont entraînés par l'air qui entre dans le tube d'aspiration (6), et passe derrière la soufflante (5) vers un sac de collecte (9) placé dans une chambre de collecte (8). Les débris sont collectés dans le sac (9) qui possède un niveau de porosité élevé, ce qui permet s'expulser l'air de la chambre (8). L'air expulsé de la chambre (8) est renvoyé via un conduit d'échappement (100) vers la tête d'aspiration (7), où il est à nouveau aspiré dans le conduit d'aspiration (6), pour recirculer à travers le système d'aspiration et la chambre de collecte (8). Il n'est pas nécessaire de fournir des systèmes de filtrage élaborés pour l'air expulsé de la chambre de collecte (8), du fait que la plupart des particules de poussière entraînées dans l'air expulsé sont réaspirées dans le conduit d'aspiration (6), et renvoyées dans la chambre de collecte (8).
PCT/GB2001/002556 2000-06-10 2001-06-11 Balayeuses a aspiration Ceased WO2001095781A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001264070A AU2001264070A1 (en) 2000-06-10 2001-06-11 Suction sweepers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0014148.1 2000-06-10
GB0014148A GB0014148D0 (en) 2000-06-10 2000-06-10 Suction sweepers

Publications (1)

Publication Number Publication Date
WO2001095781A1 true WO2001095781A1 (fr) 2001-12-20

Family

ID=9893364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/002556 Ceased WO2001095781A1 (fr) 2000-06-10 2001-06-11 Balayeuses a aspiration

Country Status (3)

Country Link
AU (1) AU2001264070A1 (fr)
GB (1) GB0014148D0 (fr)
WO (1) WO2001095781A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359033B4 (de) * 2003-12-15 2007-09-27 Alfred Kärcher Gmbh & Co. Kg Fahrbare Bodenreinigungsmaschine
DE102006034435A1 (de) * 2006-07-26 2008-01-31 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Fahrbare Sammelmaschine
EP1716801A3 (fr) * 2005-04-25 2009-04-29 LG Electronics Inc. Dispositif de nettoyage automatique
CN103741630A (zh) * 2014-02-10 2014-04-23 北京天路通科技有限责任公司 清洁车吸尘盘
CN104805788A (zh) * 2015-04-30 2015-07-29 朝阳朗瑞车辆技术有限公司 微型电动自吸式清洁车
CN104805790A (zh) * 2015-04-30 2015-07-29 朝阳朗瑞车辆技术有限公司 一种地面清洁车及其吸尘装置
CN104846763A (zh) * 2015-04-30 2015-08-19 朝阳朗瑞车辆技术有限公司 一种地面清洁车及其环形清扫装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007630A1 (de) * 1970-02-19 1971-08-26 Pagendarm Erich Kg Flachenreinigungsgerat
GB1483664A (en) * 1975-04-01 1977-08-24 Templar Tools Ltd Cleaning of surfaces particularly of streets and floors
GB2138280A (en) * 1983-02-28 1984-10-24 Gorenje Muta Tovarna Poljedels Cleaning apparatus
GB2211227A (en) * 1987-10-16 1989-06-28 John Prendergast Suction cleaning apparatus
JPH02234735A (ja) * 1989-03-07 1990-09-17 Tsutomu Nozaki 吹き出しを有する循環流式清掃車
EP0501675A1 (fr) * 1991-02-25 1992-09-02 Electrolux Northern Limited Dispositif collecteur
US5477585A (en) * 1993-08-23 1995-12-26 Electrostar Schottle Gmbh & Co. Suction and blowing device
US5768744A (en) * 1992-09-26 1998-06-23 Hamilton; Robin Self-propelled waste collection vehicle
DE19719837A1 (de) * 1997-05-12 1998-11-19 Horst Sellmaier Reinigungsvorrichtung für Fuß- und Teppichböden
US5848521A (en) * 1996-01-17 1998-12-15 Kioritz Corporation Scattered objects collector

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007630A1 (de) * 1970-02-19 1971-08-26 Pagendarm Erich Kg Flachenreinigungsgerat
GB1483664A (en) * 1975-04-01 1977-08-24 Templar Tools Ltd Cleaning of surfaces particularly of streets and floors
GB2138280A (en) * 1983-02-28 1984-10-24 Gorenje Muta Tovarna Poljedels Cleaning apparatus
GB2211227A (en) * 1987-10-16 1989-06-28 John Prendergast Suction cleaning apparatus
JPH02234735A (ja) * 1989-03-07 1990-09-17 Tsutomu Nozaki 吹き出しを有する循環流式清掃車
EP0501675A1 (fr) * 1991-02-25 1992-09-02 Electrolux Northern Limited Dispositif collecteur
US5768744A (en) * 1992-09-26 1998-06-23 Hamilton; Robin Self-propelled waste collection vehicle
US5477585A (en) * 1993-08-23 1995-12-26 Electrostar Schottle Gmbh & Co. Suction and blowing device
US5848521A (en) * 1996-01-17 1998-12-15 Kioritz Corporation Scattered objects collector
DE19719837A1 (de) * 1997-05-12 1998-11-19 Horst Sellmaier Reinigungsvorrichtung für Fuß- und Teppichböden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 548 (C - 0785) 5 December 1990 (1990-12-05) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359033B4 (de) * 2003-12-15 2007-09-27 Alfred Kärcher Gmbh & Co. Kg Fahrbare Bodenreinigungsmaschine
EP1716801A3 (fr) * 2005-04-25 2009-04-29 LG Electronics Inc. Dispositif de nettoyage automatique
DE102006034435A1 (de) * 2006-07-26 2008-01-31 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Fahrbare Sammelmaschine
CN103741630A (zh) * 2014-02-10 2014-04-23 北京天路通科技有限责任公司 清洁车吸尘盘
CN104805788A (zh) * 2015-04-30 2015-07-29 朝阳朗瑞车辆技术有限公司 微型电动自吸式清洁车
CN104805790A (zh) * 2015-04-30 2015-07-29 朝阳朗瑞车辆技术有限公司 一种地面清洁车及其吸尘装置
CN104846763A (zh) * 2015-04-30 2015-08-19 朝阳朗瑞车辆技术有限公司 一种地面清洁车及其环形清扫装置
CN104963306A (zh) * 2015-04-30 2015-10-07 高峰 微型电动自吸式清洁车
CN104805790B (zh) * 2015-04-30 2016-07-06 朝阳朗瑞车辆技术有限公司 一种地面清洁车及其吸尘装置
CN104846763B (zh) * 2015-04-30 2017-01-04 朝阳朗瑞车辆技术有限公司 一种地面清洁车及其环形清扫装置

Also Published As

Publication number Publication date
GB0014148D0 (en) 2000-08-02
AU2001264070A1 (en) 2001-12-24

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