US3535731A - Sweeping machines - Google Patents

Sweeping machines Download PDF

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Publication number
US3535731A
US3535731A US702281A US3535731DA US3535731A US 3535731 A US3535731 A US 3535731A US 702281 A US702281 A US 702281A US 3535731D A US3535731D A US 3535731DA US 3535731 A US3535731 A US 3535731A
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US
United States
Prior art keywords
dust
housing
brush assembly
sweeping
air
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.)
Expired - Lifetime
Application number
US702281A
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English (en)
Inventor
John Herbert Eriksson
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Individual
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Individual
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Filing date
Publication date
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Publication of US3535731A publication Critical patent/US3535731A/en
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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
    • E01H1/0827—Dislodging 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

Definitions

  • a sweeping machine has at least one brush assembly and a dust separator associated therewith for separating the dust from the dust-laden air whirled up by the brush assembly during sweeping.
  • This invention relates to an improved sweeping machine having at least one brush assembly for sweeping together waste matter such as refuse, gravel, mud etc. encumbering roadways and like surfaces and for placing the waste matter in a strand or in stacks on or adjacent the roadway, from where the waste matter is collected by a selfloading machine propelled behind the sweeping machine.
  • waste matter such as refuse, gravel, mud etc.
  • the present invention has for its object to provide a sweeping machine with means for reducing the dust formation which is so very dangerous from the viewpoint of road safety and arises when roadways and streets are swept by non-selfloading sweeping machines.
  • Characteristic of the sweeping machine of the invention is that the brush assembly has associated with it a dust separator which is adapted, without unfavourably affecting the sweeping operation, to separate the dust from the dustladen air whirled up by the brush assembly.
  • FIG. 1 shows a side elevation of a first embodiment of an improved sweeping machine according to the present invention
  • FIG. 2 shows a side elevation of a second embodiment of such sweeping machine.
  • a rotary cylinder brush assembly 1 of the sweeping machine is mounted in a U-shaped member 2 which is supported by a frame 3 connected to the draft vehicle.
  • the U-shaped member 2 is pivoted to the frame 3 and can be adjusted together with the brush assembly at various angles to the dierction of propulsion and also be raised from the roadway.
  • the brush assembly 1 can be driven from the power take-off of the draft vehicle or by any other suitable power source.
  • the sweeping machine comprises a dust separator.
  • the dust separator comprises a housing 4 which embraces the brush assembly 1 and which at the lower edge facing the ground has an elastic trailing skirt 5 which serves as a seal with respect to the roadway.
  • the suction nozzles 6 are connected to a fan 7 which sucks up the dust-laden air from the interior of the housing 4 into which clean air is continuously sucked in along the lower edge of the elastic trailing skirt.
  • the fan 7 blows the dust-laden air through the dust separator 8 from which the cleansed air escapes in a free upward flow through the tube 9.
  • the dust separator 8 in this embodiment is a cyclone but may also be a filter unit of any suitable kind.
  • the relatively compact dust separated from the dust-laden air falls down into a container 10.
  • the discharge tube 11 of the container being rotatable and telescopic, the
  • mouth 11a of the tube can be set into different positions for discharge of the separated dust onto the roadway ahead of the cylinder brush to be mixed with the nondusting coarse particles and to be supplied to the swepttogether strand of refuse without any appreciable dust formation, or laterally of the cylinder brush into said strand of refuse.
  • the separated dust can also be collected in the container 10 for batchwise emptying therefrom.
  • a portion dispensing means 12 e.g. in the shape of a weight-loaded door.
  • the dust can be allowed to stream continuously direct from the mouth 11a of the dust separator discharge tube 11.
  • the housing is sodesigned as to permit simple dismounting thereof from the sweeping machine together with the nozzles and related components of the dust separator.
  • the rotary cylinder brush assembly 1 is mounted in a U-shaped member 2 like in the earlier embodiment.
  • the U-shaped member is supported by a frame connected to the draft vehicle and suitably carried thereby.
  • the brush is mounted for relative vertical move ment with respect to the housing, and the brush is normally resiliently urged by suitable spring means toward the roadway.
  • the brush assembly 1 is arranged for pivotment in relation to the draft vehicle together with the U-shaped member and preferably also the frame, so that the brush assembly can be adjusted at various angles to the direction of propulsion to permit deposit of swept-together matter towards any desired side, it being of course also possible to raise the brush assembly out of engagement with the roadway for transportation.
  • For the operation of the brush assembly use can be made also in this case of the power take-01f of the draft vehicle, a separate motor or other power source.
  • the dust separator of the sweeping machine comprises a downwardly open housing 4 which embraces the brush assembly 1 and which is vertically movable with the aid of links 13 in relation to the U-shaped member 2 and the frame 3.
  • the housing 4 has supporting wheels 14 which run on the roadway and ensure that the lower edge of the housing will always be close to the surface of the roadway irrespective of the change of position that the brush assembly undergoes when it is gradually lowered due to wear.
  • an electric skirt 5 is mounted at said lower edge.
  • a filter device 15 which is in communication over a conduit 16, having a resilient intermediary member inserted therein, with the suction fan 7 from which the cleansed air escapes through the tube 9.
  • a bafiie 17 is arranged between the filter device 15 and the brush assembly 1, and the object of said bafiie is to prevent that in moist weather mud and wet dirt is thrown upward onto the filter device, whereby the function thereof may be jeopardized.
  • the filter device 15 is a tubular filter sleeve which is preferably folded in bellows: shapeand passed onto a body provided with suitable throughflow apertures.
  • the material of the filter may be metal, textile or synthetic fibres, or combinations of these materials.
  • the embodiment illustrated does not comprise a particular cleaning device for the filter discharge means for the collected dust, as it is intended that the dust collecting in the form of clods or cakes on the filter surface shall fall by gravity into the coarse matter swept together by the brush assembly and to be mixed therewith during the discharge thereof towards either side.
  • the filter may be cleaned as by vibration, washing, or by reversing the flow of air therethrough.
  • an upwardly open screw conveyor or like means can be disposed in the housing beneath the filter, the dust falling into said screw conveyor so as to be discharged at one end wall of the housing either into a container or into the swept-together strand of matter deposited alongside the roadway.
  • the fan 7 also is disposed at the housing 4 embracing the brush assembly so that the dust separator and said housing form a unit which can be readily dismounted from the sweeping machine when the machine is used e.g. for snow clearing purposes.
  • a dust separator for removing dust particles from the air surrounding the machine, which dust particles are undesirably and unavoidably whirled up by the rotary movement of said brush
  • dust separator including an upwardly concave housing member having an open bottom disposed over and embracing said brush assembly, an opening in said housing, an air filtration unit, a conduit operably connecting said air filtration unit and said opening, an exhaust fan connected to said conduit for withdrawing dust-laden air from beneath said housing through said air filtration unit to filter dust particles therefrom during operation of the sweeping machine, said opening being positioned in said housing to permit operation of said dust separator without interfering with operation of said sweeping machine to sweep material into a windrow on the surface of a roadway, said air filtration unit of the dust separator being disposed adjacent said opening in said housing embracing the brush assembly, the dust-laden air
  • a dust separator for removing dust particles from the air surrounding the machine, which dust particles are undesirably and unavoidably whirled up by the rotary movement of said brush
  • said dust separator including an upwardly concave housing member having an open bottom disposed over and embracing said brush assembly, an opening in said housing, an air filtration unit, a conduit operably connecting said air filtration unit and said opening, an exhaust fan connected to said conduit for withdrawing dustladen air from beneath said housing through said air filtration unit to filter dust particles therefrom during operation of the sweping machine, said opening being positioned in said housing to permit operation of said dust separator without interfering with operation of said sweeping machine to sweep material into a windrow on the surface of a roadway, said air filtration unit of the dust separator being disposed adjacent said opening in said housing embracing the brush assembly the dustladen air
  • said dust separator comprises an upwardly concave housing member having an open bottom disposed over and embracing said brush assembly, an opening in said housing, an air filtration unit, a conduit operably connecting said air filtration unit and said opening, an exhaust fan connected to said conduit and operable to withdraw dust-laden air from beneath said housing through said air filtration unit to filter dust particles therefrom during operation of the sweeping machine, said opening being positioned in said housing to permit operation of said dust separator without interfering with operation of said sweep material into a windrow on the surface of a roadway, said air filtration unit being disposed adjacent said housing embracing the brush assembly, and means for directing dust
  • said means for directing dust collected by said filtration unit is adjustable to permit the separated dust to be deposited in different positions on the roadway relative to said brush.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Road Repair (AREA)
US702281A 1967-03-29 1968-02-01 Sweeping machines Expired - Lifetime US3535731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO167467A NO123955B (xx) 1967-03-29 1967-03-29

Publications (1)

Publication Number Publication Date
US3535731A true US3535731A (en) 1970-10-27

Family

ID=19909999

Family Applications (1)

Application Number Title Priority Date Filing Date
US702281A Expired - Lifetime US3535731A (en) 1967-03-29 1968-02-01 Sweeping machines

Country Status (6)

Country Link
US (1) US3535731A (xx)
DE (1) DE1708659C2 (xx)
FR (1) FR1555053A (xx)
GB (1) GB1213184A (xx)
NL (1) NL6801511A (xx)
NO (1) NO123955B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339584A1 (de) * 1973-08-04 1975-02-13 Wiedenmann Gmbh Rasen- und laubsaugvorrichtung
WO2009039619A1 (en) * 2007-09-25 2009-04-02 Roger Vanderlinden Surface tracking sweeping broom apparatus for use with a vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675267A (en) * 1969-12-15 1972-07-11 Vernon L Klawitter Power vacuum truck
CN113684779B (zh) * 2021-10-27 2022-01-18 常州卡夫特机械有限公司 一种自动化清尘装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US913460A (en) * 1907-12-14 1909-02-23 John R Jones Street-sweeper.
US918896A (en) * 1908-03-28 1909-04-20 Electric Renovator Mfg Company Pneumatic renovator.
US1085676A (en) * 1912-05-20 1914-02-03 Dwight H Finch Street-sweeper.
US1107564A (en) * 1910-02-04 1914-08-18 Edward K Ward Vacuum street-sweeper.
US1301927A (en) * 1918-04-15 1919-04-29 Bruce Frame Street-sweeper.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1198142A (fr) * 1958-06-03 1959-12-04 Lebon & Cie Balayeuse perfectionnée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US913460A (en) * 1907-12-14 1909-02-23 John R Jones Street-sweeper.
US918896A (en) * 1908-03-28 1909-04-20 Electric Renovator Mfg Company Pneumatic renovator.
US1107564A (en) * 1910-02-04 1914-08-18 Edward K Ward Vacuum street-sweeper.
US1085676A (en) * 1912-05-20 1914-02-03 Dwight H Finch Street-sweeper.
US1301927A (en) * 1918-04-15 1919-04-29 Bruce Frame Street-sweeper.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339584A1 (de) * 1973-08-04 1975-02-13 Wiedenmann Gmbh Rasen- und laubsaugvorrichtung
WO2009039619A1 (en) * 2007-09-25 2009-04-02 Roger Vanderlinden Surface tracking sweeping broom apparatus for use with a vehicle

Also Published As

Publication number Publication date
FR1555053A (xx) 1969-01-24
NO123955B (xx) 1972-02-07
DE1708659B1 (de) 1971-10-28
DE1708659C2 (de) 1974-02-21
GB1213184A (en) 1970-11-18
NL6801511A (xx) 1968-09-30

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