EP1707679A1 - Manually-operated sweeper - Google Patents

Manually-operated sweeper Download PDF

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Publication number
EP1707679A1
EP1707679A1 EP06101238A EP06101238A EP1707679A1 EP 1707679 A1 EP1707679 A1 EP 1707679A1 EP 06101238 A EP06101238 A EP 06101238A EP 06101238 A EP06101238 A EP 06101238A EP 1707679 A1 EP1707679 A1 EP 1707679A1
Authority
EP
European Patent Office
Prior art keywords
sweeper
fan
chassis
brush
transmission
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Withdrawn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
EP06101238A
Other languages
German (de)
French (fr)
Inventor
Renato Scremin
Gianfranco Lago
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.)
Eureka Srl
Original Assignee
Eureka Srl
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 to IT000011U priority Critical patent/ITPD20050011U1/en
Application filed by Eureka Srl filed Critical Eureka Srl
Publication of EP1707679A1 publication Critical patent/EP1707679A1/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/22Floor-sweeping machines, hand-driven
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts 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
    • A47L11/4027Filtering or separating contaminants or debris
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts 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
    • A47L11/4036Parts or details of the surface treating tools
    • A47L11/4041Roll shaped surface treating tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts 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
    • A47L11/4063Driving means; Transmission means therefor
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts 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
    • A47L11/4063Driving means; Transmission means therefor
    • A47L11/4069Driving or transmission means for the cleaning tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/02Structural features of suction cleaners with user-driven air-pumps or compressors
    • A47L5/06Structural features of suction cleaners with user-driven air-pumps or compressors with rotary fans
    • A47L5/08Structural features of suction cleaners with user-driven air-pumps or compressors with rotary fans driven by cleaner-supporting wheels
    • A47L5/10Structural features of suction cleaners with user-driven air-pumps or compressors with rotary fans driven by cleaner-supporting wheels with driven dust-loosening tools
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0854Apparatus in which the mechanically dislodged dirt is partially sucked-off, e.g. dislodging- sweeping apparatus with dirt collector in brush housing or dirt container

Abstract

A manually-operated sweeper, of the type constituted by a wheeled chassis (11) with a steering handlebar (12) and with which a dirt collection container (13) is associated; the rear wheels (14) of the chassis (11) actuate, by means of a first transmission, a first brush (15), which has a horizontal axis which is parallel to the axis of the rear wheels (14) and is adapted to act on the surface that lies below the chassis (11), and, by means of a second transmission, a second brush (16), which has a vertical axis and is supported by an arm (17) which protrudes in front of the chassis (11). The sweeper (10) also has, proximate to the first brush (15), a fan (18) for aspirating fine dust raised by the action of the first and second brushes (15, 16) toward a filter (19) located inside a protective housing (20) at an opening leading externally (21) for the escape of the filtered air. The fan (18) is turned by way of transmission devices actuated by the motion of at least one of the rear wheels (14), therefore without electric motor drives.

Description

  • Manually-operated sweepers are currently known and widely appreciated.
  • These manually-operated sweepers allow to clean rapidly and cheaply very large surfaces, such as the indoor areas of an industrial building, sidewalks and other similar road portions, and more generally surfaces that are so extensive as to make scarcely convenient to perform manual cleaning by means of a broom or by means of an electric vacuum cleaner.
  • Moreover, the manually-operated sweeper is capable of removing and aspirating dust, debris and other similar dirt even from corner regions which are generally difficult to reach, such as for example the region where a sidewalk and the road surface meet.
  • These known sweepers are generally constituted by a wheeled chassis provided with a steering handlebar, a dirt collection container being associated with said chassis.
  • The rear wheels of the chassis are adapted, by virtue of their rotation, to actuate by means of a first transmission a first brush, which has a horizontal axis which is parallel to the axis of the rear wheels and is adapted to act on the surface below the chassis.
  • The rear wheels, by means of a second transmission, actuate a second brush, which has a vertical axis and is supported by an arm which lies in front of the chassis.
  • The sweeper further has, proximate to the first brush, a fan for aspirating the fine dust, lifted by the action of the brushes, toward a filter located inside a protective housing.
  • Such suction fan for fine dust is actuated by a motor drive (motor, gearmotor and the like) which is electric and therefore requires a power supply battery and a battery charger in order to periodically restore its full functionality.
  • The electric motor and the battery, in addition to being, together with the battery charger, important factors in the production costs of the sweeper, are two components which increase the weight of the sweeper.
  • The aim of the present invention is to provide a manually-operated sweeper which is capable of operating in a fully independent manner, without using electric power.
  • Within this aim, an object of the present invention is to provide a manually-operated sweeper in which the fan for aspirating fine dust is not actuated by an electric motor drive.
  • Another object of the present invention is to provide a sweeper whose functionality and efficiency is not lower than that of known types of sweeper.
  • Another object of the present invention is to provide a sweeper whose dirt loading capacity is not lower than that of known types of sweeper.
  • Another object of the present invention is to provide a sweeper which can be operated easily even by an operator lacking particular prior training.
  • A further object of the present invention is to provide a manually-operated sweeper which can be manufactured cheaply with known systems and technologies.
  • This aim and these and other objects, which will become better apparent hereinafter, are achieved by a manually-operated sweeper, of the type constituted by a wheeled chassis with a steering handlebar, a dirt collection container being associated with said chassis, the rear wheels of said chassis being adapted, by virtue of their rotation, to actuate by means of a first transmission a first brush, which has a horizontal axis which is parallel to the axis of the rear wheels and is adapted to act on the surface that lies below said chassis, and, by means of a second transmission, a second brush, which is supported by an arm which protrudes in front of the chassis, said second brush rotating with a vertical axis, said sweeper also having, proximate to said first brush, a fan for aspirating fine dust raised by the action of said first and second brushes toward a filter located inside a protective housing at an opening leading externally for the escape of the filtered air, said sweeper being characterized in that said fan is turned by way of transmission means actuated by the motion of at least one of said rear wheels.
  • Further characteristics and advantages of the invention will become better apparent from the following detailed description of a preferred but not exclusive embodiment thereof, illustrated by way of non-limiting example in the accompanying drawings, wherein:
    • Figure 1 is a partially exploded rear perspective view of a sweeper according to the invention;
    • Figure 2 is a schematic sectional side view of a sweeper according to the invention;
    • Figure 3 is a sectional top view of a detail of a sweeper according to the invention.
  • With reference to the figures, a manually-operated sweeper according to the invention is generally designated by the reference numeral 10.
  • The sweeper 10 is constituted by a wheeled chassis 11 with a steering handlebar 12; a container 13 for collecting dirt 28 is associated with said chassis.
  • The rear wheels 14 of the chassis 11, by virtue of their rotation, actuate by means of a first transmission a first brush 15, whose axis is horizontal and parallel to the axis of the rear wheels 14, said first brush being adapted to act on the surface below the chassis 11.
  • The wheels 14, by means of a second transmission, also actuate a second brush 16, which rotates with a vertical axis and is supported by an arm 17 which protrudes in front of the chassis 11.
  • The sweeper 10 has, proximate to the first brush 15, a fan 18 for aspirating fine dust 29, raised by the action of the brushes, toward a filter 19 located within a rear protective housing 20.
  • The chassis 11 has, at the fan 18, a grille which opens onto the outside 21 for the escape of the filtered air.
  • The fan 18 is turned by way of transmission means which are actuated by the motion of the closest of the rear wheels 14 without the aid of any electric motor drive.
  • Said transmission means for the fan 18, which accordingly replace the electric motor drive provided in known types of sweeper, are constituted by a drive train of the internal-wheel type, provided by a drive wheel 22, which is rigidly coupled to the rotation shaft 23 of the fan 18 and is in contact with the internal surface 24 of the rear wheel 14, as shown clearly in Figure 3.
  • The wheel 14 applies to the drive wheel 22 torque by rolling friction.
  • The drive wheel 22 is made of a rubber-like material, and the wheel 14 and therefore its internal surface 24 are made of plastic material such as nylon or equivalents, and therefore the drive wheel 22 rotates substantially without slipping on the internal surface 24.
  • The transmission ratio determined by the outside diameter of the drive wheel 22 and by the inside diameter of the internal surface 24 of the rear wheel 14 is such as to move the fan 18 at a rate which generates partial vacuum within the filter 19.
  • The filter 19 has a cylindrical structure and is of the cartridge type.
  • The filter 19 is associated coaxially with the fan 18 by interposing a tube 25.
  • The tube 25 has a larger cross-section in the region 25a where it surrounds the fan 18 and a smaller cross-section in the region 25b for coupling to the filter 19.
  • The tube 25 is therefore shaped so as to obtain a Venturi effect, reducing the pressure in the filter 19 with respect to the pressure outside the fan 18.
  • The drive wheel 22 at the free end of the rotation shaft 23 of the fan 18 therefore allows to save on the entire electrical system with which known types of sweeper are provided, i.e., the electric motor drive, the battery and the battery charger.
  • The sweeper 10 according to the invention further has the advantage of being lighter than known sweepers, since it lacks said electric power supply components and is therefore more maneuverable.
  • The first transmission for the first brush 15 is provided by a first driving gear 26, which is keyed on a rotation shaft 27 of the rear wheel 14, against which the drive wheel 22 is pressed, and by a second driven gear 28, which meshes with the first gear 26 so as to form an external gear train and is keyed to a rotation pivot 29 of the first brush 15.
  • The first brush 15 therefore rotates in the opposite direction with respect to the direction of travel of the sweeper 10.
  • In practice it has been found that the invention thus described solves the problems noted in known types of manually-operated sweeper.
  • In particular, the present invention provides a manually-operated sweeper which is adapted to operate in a fully independent manner without using electric power.
  • Moreover, the present invention provides a manually-operated sweeper in which the fan for aspirating fine dust is not actuated by an electric motor drive, but is actuated by mechanical means for transmitting the rotation of the rear wheels.
  • Further, the present invention provides a sweeper whose functionality and efficiency is not lower than that of known types of sweeper.
  • Moreover, the present invention provides a sweeper whose dirt loading capacity is not lower than that of known types of sweeper.
  • Further, the present invention provides a sweeper which can be operated easily even by an operator who does not have particular prior training.
  • Moreover, the present invention provides a manually-operated sweeper which can be manufactured cheaply with known systems and technologies.
  • In practice, the materials employed, so long as they are compatible with the specific use, as well as the dimensions, may be any according to requirements and to the state of the art.
  • The disclosures in Italian Patent Application No. PD2005U000011 from which this application claims priority are incorporated herein by reference.
  • Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.

Claims (8)

  1. A manually-operated sweeper, of the type constituted by a wheeled chassis (11) with a steering handlebar (12), a dirt collection container (13) being associated with said chassis (11), the rear wheels (14) of said chassis (11) being adapted, by virtue of their rotation, to actuate by means of a first transmission a first brush (15), which has a horizontal axis which is parallel to the axis of the rear wheels (14) and is adapted to act on the surface that lies below said chassis (11), and, by means of a second transmission, a second brush (16), which rotates with a vertical axis and is supported by an arm (17) which protrudes in front of the chassis (11), said sweeper (10) also having, proximate to said first brush (15), a fan (18) for aspirating fine dust raised by the action of said first and second brushes (15, 16) toward a filter (19) located inside a protective housing (20) at an opening leading externally (21) for the escape of the filtered air, said sweeper (10) being characterized in that said fan (18) is turned by way of transmission means actuated by the motion of at least one of said rear wheels (14).
  2. The sweeper according to claim 1, characterized in that said transmission means for said fan (18) are constituted by a drive train of the internal-wheel type, provided by a drive wheel (22) which is rigidly coupled to the rotation shaft (23) of said fan (18) and is in contact with the internal surface (24) of said at least one rear wheel (14).
  3. The sweeper according to one or more of the preceding claims, characterized in that said wheel (14) applies to said drive wheel (22) torque by rolling friction.
  4. The sweeper according to one or more of the preceding claims, characterized in that said drive wheel (22) is made of rubber-like material, said wheel (14), and therefore its internal surface (24), being made of plastic material such as nylon or equivalents.
  5. The sweeper according to one or more of the preceding claims, characterized in that the transmission ratio determined by the outside diameter of said drive wheel (22) and by the inside diameter of said internal surface (24) of the rear wheel (14) is such as to move said fan (18) at such a rate as to generate a partial vacuum within said filter (19).
  6. The sweeper according to one or more of the preceding claims, characterized in that said filter (19) has a cylindrical structure and is of the cartridge type.
  7. The sweeper according to one or more of the preceding claims, characterized in that said filter (19) is associated coaxially with said fan (18) by interposing a tube (25) which has a larger cross-section in the region (25a) in which it surrounds said fan (18) and a smaller cross-section in the region (25b) for coupling to the filter (19), said tube (25) being shaped so as to achieve a Venturi effect of pressure reduction in the filter with respect to the pressure outside the fan (18).
  8. The sweeper according to one or more of the preceding claims, characterized in that said first transmission for said first brush (15) is provided by a first driving gear (26), which is keyed on the rotation shaft (27) of said at least one rear wheel (14), and by a second driven gear (28), which meshes with said first gear (26) so as to form a gear train with external gears and is keyed to the rotation pivot (29) of said first brush (15), which rotates in the opposite direction with respect to the direction of travel of the sweeper (10).
EP06101238A 2005-03-01 2006-02-03 Manually-operated sweeper Withdrawn EP1707679A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000011U ITPD20050011U1 (en) 2005-03-01 2005-03-01 PERFECT MANUAL SWEEPER SWEEPER

Publications (1)

Publication Number Publication Date
EP1707679A1 true EP1707679A1 (en) 2006-10-04

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ID=36645821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06101238A Withdrawn EP1707679A1 (en) 2005-03-01 2006-02-03 Manually-operated sweeper

Country Status (4)

Country Link
US (1) US20060195992A1 (en)
EP (1) EP1707679A1 (en)
CN (1) CN1827029A (en)
IT (1) ITPD20050011U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007058623A1 (en) 2007-12-05 2009-06-18 Stolzenberg Gmbh & Co. Kg Floor cleaning device i.e. manually operated street cleaner, has brush roller and side brush actuated to rotating motion around its respective axes by running wheels, where side brush is coupled with one of running wheels by gear mechanism
DE102008024439A1 (en) * 2008-05-14 2009-11-19 Alfred Kärcher Gmbh & Co. Kg Mobile sweeper
CN101319490B (en) * 2008-05-23 2010-10-06 武汉理工大学 Hybrid cleaning car
CN103758058A (en) * 2014-02-20 2014-04-30 梁光 Cleaning and clean-keeping sweeper
US9072415B2 (en) 2010-11-05 2015-07-07 Bissell Homecare, Inc. Bare floor vacuum cleaner
WO2021204567A3 (en) * 2020-04-07 2021-12-02 Alfred Kärcher SE & Co. KG Filter unit for a cleaning machine, floor cleaning machine, and method for operating a floor cleaning machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076489A1 (en) * 2011-05-25 2012-11-29 Ing. Haaga Werkzeugbau Gmbh & Co. Kg Hand-guided sweeping machine for cleaning e.g. leaves, has dust traps arranged in air ducts for filtering air coming from container, and bulkheads extending from container to front region of housing
CN102733467B (en) * 2012-07-04 2013-09-04 江西理工大学 Cleaning machine for squatting toilet
CN105839572B (en) * 2016-05-24 2018-11-27 巢湖学院 A kind of automatic garbage cleaning device
CN106040633A (en) * 2016-05-24 2016-10-26 张殿飞 Intelligent garbage picking machine
CN107260081A (en) * 2017-08-18 2017-10-20 合肥荣电环境电器有限公司 A kind of intelligent domestic floor sweeper
CN108464794B (en) * 2018-03-31 2020-11-03 界首万昌新材料技术有限公司 Mop auxiliary device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910721A (en) * 1955-12-15 1959-11-03 Burrage & Boyde Ltd Non-electric vacuum cleaning machines
DE2940277A1 (en) * 1979-10-04 1981-04-16 Bauer-Kompressoren Heinz Bauer, 8000 München Friction drive for sweeping machines - has switchable coupling allowing delayed start of fan and thus lower starting moment for brush roller
US4658458A (en) * 1986-04-16 1987-04-21 Shop-Vac Corporation Rotary brush sweeper with mechanism for brush height adjustment
EP0793988A2 (en) * 1996-03-06 1997-09-10 Gansow Elektrobau GmbH Filter for a motorized sweeper and related machine
EP1452121A2 (en) * 2001-07-20 2004-09-01 Nicholas Gerald Grey Surface cleaning apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910721A (en) * 1955-12-15 1959-11-03 Burrage & Boyde Ltd Non-electric vacuum cleaning machines
DE2940277A1 (en) * 1979-10-04 1981-04-16 Bauer-Kompressoren Heinz Bauer, 8000 München Friction drive for sweeping machines - has switchable coupling allowing delayed start of fan and thus lower starting moment for brush roller
US4658458A (en) * 1986-04-16 1987-04-21 Shop-Vac Corporation Rotary brush sweeper with mechanism for brush height adjustment
EP0793988A2 (en) * 1996-03-06 1997-09-10 Gansow Elektrobau GmbH Filter for a motorized sweeper and related machine
EP1452121A2 (en) * 2001-07-20 2004-09-01 Nicholas Gerald Grey Surface cleaning apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007058623A1 (en) 2007-12-05 2009-06-18 Stolzenberg Gmbh & Co. Kg Floor cleaning device i.e. manually operated street cleaner, has brush roller and side brush actuated to rotating motion around its respective axes by running wheels, where side brush is coupled with one of running wheels by gear mechanism
DE102008024439A1 (en) * 2008-05-14 2009-11-19 Alfred Kärcher Gmbh & Co. Kg Mobile sweeper
US8621700B2 (en) 2008-05-14 2014-01-07 Alfred Kaercher Gmbh & Co. Kg Mobile sweeper
CN101319490B (en) * 2008-05-23 2010-10-06 武汉理工大学 Hybrid cleaning car
US9072415B2 (en) 2010-11-05 2015-07-07 Bissell Homecare, Inc. Bare floor vacuum cleaner
CN103758058A (en) * 2014-02-20 2014-04-30 梁光 Cleaning and clean-keeping sweeper
WO2021204567A3 (en) * 2020-04-07 2021-12-02 Alfred Kärcher SE & Co. KG Filter unit for a cleaning machine, floor cleaning machine, and method for operating a floor cleaning machine

Also Published As

Publication number Publication date
ITPD20050011U1 (en) 2006-09-02
CN1827029A (en) 2006-09-06
US20060195992A1 (en) 2006-09-07

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