US3643283A - Centrifugal roller for street cleaning devices - Google Patents

Centrifugal roller for street cleaning devices Download PDF

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Publication number
US3643283A
US3643283A US65470A US3643283DA US3643283A US 3643283 A US3643283 A US 3643283A US 65470 A US65470 A US 65470A US 3643283D A US3643283D A US 3643283DA US 3643283 A US3643283 A US 3643283A
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US
United States
Prior art keywords
collar
roller
broom
centrifugal roller
street cleaning
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
US65470A
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English (en)
Inventor
Fritz Jahnert
Martin Schollhorn
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.)
Keller and Knappich GmbH
Original Assignee
Keller and Knappich GmbH
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 Keller and Knappich GmbH filed Critical Keller and Knappich GmbH
Application granted granted Critical
Publication of US3643283A publication Critical patent/US3643283A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/001—Cylindrical or annular brush bodies
    • A46B13/005—Cylindrical or annular brush bodies made up of a series of longitudinal strips or segments

Definitions

  • ABSTRACT In a centrifugal roller mounted on street cleaning devices having pivotable broom carriers which pivot parallel with respect to the rotational axis of the roller so that the brooms engage the circumference of the roller at a defined point, there is provided a connecting rod joining each of the: broom carriers to a collar which is slidably mounted on a roller so that when the collar is positioned on the roller, the broom carriers can be easily adjusted in order to equalize the wear on the broom bristles during the operation of the street cleaning device.
  • Broom carriers are arranged on the rotational axis of a hollow roller.
  • the brooms engage the circumferential surface of centrifugal rollers at defined points, in order to equalize the wear of the broom bristles.
  • the centrifugal rollers are rotated against the direction of drive of the street cleaner.
  • the collected dirt thus is centrifuged into a guide cover and gathered in a collection container.
  • This type of operation requires that the circumference of the centrifugal roller cooperate with the guide cover for the collected dirt, since the effectiveness of the device would otherwise be significantly impaired.
  • the broom carriers in these conventional devices are mounted on rotatable pivot axis which rotate parallel and simultaneously with the centrifugal roller.
  • the necessary equipment for pivoting the broom carriers must, therefore, be designed to withstand the forces exerted thereon. Furthermore, the device should not be subjected to contamination.
  • the present invention arranges the pivoting means for the broom carriers to withstand the pressure exerted on the bearings so that they are stable.
  • the pivot arm for each broom carrier is coupled to a collar which is slidable in the longitudinal direction on the rotational axis of the centrifugal roller.
  • the pivot arms and the slide are connected by means of a guide rod which is provided with universal or ball and socketjoints on each end.
  • the collar thus acts like a sliding block.
  • the collar may be actuated either manually or pneumatically by means of a threaded spindle and a pair of screw caps, and by means of positive or nonpositive spring pressure.
  • an object according to the present invention to provide an apparatus which permits the broom carriers of a centrifugal roller for a street cleaning device to be adjusted in order to equalize the wear on the broom bristles.
  • FIG. 1 shows the device in folded position
  • FIG. 2 shows the device in straight position
  • HG. 3 shows an enlarged section of the device.
  • a hollow roller 1 forms a roller axis and carries two discs 2 which are rigidly mounted to the roller.
  • a plurality of fixedly mounted carrying arms 3 extend radially from the discs. Only two arms are shown in the drawing.
  • Arms 13 of broom carrier plate are pivotably mounted by means of pivot axis 4 or the ends of arms 3, and are arranged parallel with respect to the rotational movement of hollow roller 1.
  • a ball and socket or universal joint 6 is provided on broom carrier plate 5 and forms an effective pivot point. Joint 6 is connected to one end of a connecting or guide rod 7.
  • a ball and socket or universal joint 8 is also provided on the other end of guide rod 7 and secured to a collar 9.
  • Collar 9 is slidably mounted for movement along the longitudinal direction on the outer face of hollow roller 1.
  • Collar 9 is preferably formed as a casing engaging a corresponding longitudinal cutout or groove 10 in roller l.
  • Collar 9 serves as a sliding block.
  • Slidable collar 9 is mounted as a travelling or floating nut for movement on a correspondingly threaded spindle l1.
  • Threaded spindle 11 extends outwardly from within hollow roller 1 and has an adjustable hexagonal cap screw 12 mounted at one end.
  • Adjustable capscrew 12 permits collar 9 to be adjusted from either the left position of FIG. 1 in which the broom carrier plate 5 is folded with respect to arms 3, or into the right position of FIG. 2, when arms 13 are in a straight position with respect to arms 3. Bristles 16 of the brooms are thus always in engagement on the outer circumference of the roller even when bristles 16 are shortened due to wear.
  • FIGS. l and 2 By comparing FIGS. l and 2, it can be seen that the straight or extended position for the carrier brooms can be altered since the linear distance between ball and socket or universal 10 joint 8 and the mathematical or imaginary axis of pivotal axes 4 in direction of guide rod 7 can be shortened.
  • a baseplate 14 secured to broom carrier 5.
  • a mounting plate l5 Secured perpendicular to base plate 14 is a mounting plate l5 having universal or ball joint 6 secured on one surface thereof.
  • the distance a represents the displacement between the axes of joint 6 and pivot 4 of broom carriers 5.
  • Displacement a which serves as an offset distance for connecting rod 7, permits broom carriers 5 to be selectively pivoted with respect to arms 3 in order to equalize the wear on broom bristles 16. Therefore, connecting rod 7 affects the pivotal movement of broom carrier plates 5 because of the fixed length of the rod.
  • Ball and socket or universal joints 6 and 8 are not subjected to contamination, as is well known from the automotive art.
  • Pivotal axes 4 maintain broom carriers 5 in a rigid and stable position without allowing any tolerance.
  • Carriers 5 are preferably mounted on rubber roller type bearings. Longitudinal groove or slot 10 may be sealed by an accordion-type seal (not shown) to prevent contamination.
  • the connecting rod would consist of two parts connected with each other. The two parts of the guide rod would be pivotable with respect to each other along the longitudinal direction of the rod.
  • a rotatable, adjustable brush for a street cleaning device comprising:
  • broom carrier members pivotably afiixed to the ends of said mounting members so that carrier members are pivotable parallel to the longitudinal axis of said centrifugal roller, for mounting brooms on the street cleaning device;
  • centrifugal roller as recited in claim I, additionally comprising adjusting means coupled to said slidable collar for positioning said collar on said centrifugal roller.
  • a capscrew mounted on end end of said spindle to facilitate rotation of said spindle with respect to said roller.

Landscapes

  • Pivots And Pivotal Connections (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Cleaning In General (AREA)
  • Brushes (AREA)
US65470A 1969-09-30 1970-08-20 Centrifugal roller for street cleaning devices Expired - Lifetime US3643283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1949304A DE1949304C3 (de) 1969-09-30 1969-09-30 Schleuderwalze für Straßenkehr maschinen

Publications (1)

Publication Number Publication Date
US3643283A true US3643283A (en) 1972-02-22

Family

ID=5746924

Family Applications (1)

Application Number Title Priority Date Filing Date
US65470A Expired - Lifetime US3643283A (en) 1969-09-30 1970-08-20 Centrifugal roller for street cleaning devices

Country Status (8)

Country Link
US (1) US3643283A (de)
AT (1) AT305350B (de)
CH (1) CH508103A (de)
DE (1) DE1949304C3 (de)
FR (1) FR2063073B1 (de)
NL (1) NL7012882A (de)
NO (1) NO127600B (de)
SE (1) SE375350B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995415A (en) * 1975-04-21 1976-12-07 John Allen Hoffmann Lawn broom
US4707875A (en) * 1984-08-06 1987-11-24 Famag Fahrzeug- Und Maschinenhandelsgesellschaft M.B.H. Nfg. Kg. Holding member for working elements of roller brushes
US6125495A (en) * 1998-11-20 2000-10-03 Tennant Company Variable diameter cleaning brush
EP2495074A3 (de) * 2011-03-03 2014-09-03 Eisenmann AG Vorrichtung zum Schleifen und/oder Bürsten von Gegenständen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016154A1 (de) * 1990-05-21 1991-11-28 Sobernheimer Maschinenbau Gmbh Selbstaufnehmende vorbaukehrvorrichtung
CN111926753B (zh) * 2020-08-07 2021-11-30 安徽华信电动科技股份有限公司 一种环卫车用吹风扫地装置及环卫车

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE621237A (de) *
US3284831A (en) * 1965-02-01 1966-11-15 Sicard Inc Runway sweeper
US3545026A (en) * 1968-05-09 1970-12-08 Sherman Car Wash Equip Co Brush

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE621237A (de) *
US3284831A (en) * 1965-02-01 1966-11-15 Sicard Inc Runway sweeper
US3545026A (en) * 1968-05-09 1970-12-08 Sherman Car Wash Equip Co Brush

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995415A (en) * 1975-04-21 1976-12-07 John Allen Hoffmann Lawn broom
US4707875A (en) * 1984-08-06 1987-11-24 Famag Fahrzeug- Und Maschinenhandelsgesellschaft M.B.H. Nfg. Kg. Holding member for working elements of roller brushes
US6125495A (en) * 1998-11-20 2000-10-03 Tennant Company Variable diameter cleaning brush
EP2495074A3 (de) * 2011-03-03 2014-09-03 Eisenmann AG Vorrichtung zum Schleifen und/oder Bürsten von Gegenständen

Also Published As

Publication number Publication date
CH508103A (de) 1971-05-31
AT305350B (de) 1973-02-26
FR2063073B1 (de) 1974-09-20
NL7012882A (de) 1971-04-01
DE1949304B2 (de) 1973-05-24
NO127600B (de) 1973-07-23
DE1949304A1 (de) 1972-03-16
SE375350B (de) 1975-04-14
FR2063073A1 (de) 1971-07-02
DE1949304C3 (de) 1973-12-13

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