US3874016A - Sweeper - Google Patents

Sweeper Download PDF

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Publication number
US3874016A
US3874016A US389930A US38993073A US3874016A US 3874016 A US3874016 A US 3874016A US 389930 A US389930 A US 389930A US 38993073 A US38993073 A US 38993073A US 3874016 A US3874016 A US 3874016A
Authority
US
United States
Prior art keywords
drive wheel
housing
open side
combination
hub
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
US389930A
Other languages
English (en)
Inventor
Johannes Liebscher
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.)
Leifheit International GmbH
Original Assignee
Leifheit International Guenter Leifheit 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 Leifheit International Guenter Leifheit GmbH filed Critical Leifheit International Guenter Leifheit GmbH
Application granted granted Critical
Publication of US3874016A publication Critical patent/US3874016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L11/22—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
    • A47L11/32—Carpet-sweepers
    • A47L11/33—Carpet-sweepers having means for storing dirt

Definitions

  • a housing of a sweeper has a circumferential side wall and an open side normally facing a surface to be swept.
  • One or more rotary brushes are journalled in [30] Foreign Application Priority Data the housing and partly project through the open side Aug 19. 1972 Germany 2240852 for p g the Surface A pp auxiliary brush is also mounted in the housing for rotation and has an [52] us. Cl. 15/42, 15/87 n l f ri l hich partly project outwardly be- [51] Int. Cl A47l 11/33 y h i w ll at he open side.
  • An inclined plate- [58] Field of Search l5/42, 87 p d rive whe l is m nted within the confines of the bristles of the auxiliary brush and cooperates with [56] References Cited the latter for rotating it.
  • the present invention relates generally to a sweeper, and more particularly to a sweeper for surfaces of floors or the like.
  • sweepers having a housing, the circumferential side wall of which bounds an open side which normally faces the surface to be swept.
  • rotary brushes are mounted so that they partly project through the open side, into, contact with the surface to be swept.
  • an auxiliary rotary brush which overlaps, that is partly projects outwardly beyond the side wall of the housing, for the purpose of sweeping alongside this side wall, for instance along baseboards or the like where the main rotary brushes of the sweeper cannot reach.
  • One or more receptacles are provided in the interior of the housing into which the various brushes deposit the swept-up dirt and the like.
  • Another object of the invention is to provide such a novel sweeper which is less expensive to construct, and therefore to sell, than those known from the prior art.
  • a sweeper in a combination comprising a housing having a circumferential side wall and an open side which normally faces a surface to be swept.
  • Rotary brush means is provided in the housing and partly projects through the open side for sweeping this surface.
  • a cupped auxiliary brush is mounted in the housing for rotation and has an annulus of bristles which partly projects outwardly beyond the side wall at the open side.
  • An inclined plate-shaped drive wheel is mounted within the confines of the bristles and cooperates with the auxiliary brush for rotating the same.
  • auxiliary brush together with its drive wheel is mounted for tilting movement in the housing. in such a manner that when the housing is moved to-and-fro in opposite directions for sweeping purposes, the auxiliary brush and its associate drive wheel can tilt to accommodate themselves to the particular direction.
  • different parts of the bristle annulus of the auxiliary brush will come in contact with the surface to be swept, depending upon the direction in which the housing is moved toand-fro, thereby assuring that there will always be an inwardly acting part of the annulus of bristles which becomes active for sweeping the surface.
  • the bristle annulus is out of contact with the surface so that the dirt can always be swept inwardly of the annulus and towards the interior of the housing, to be supplied to the main rotary brushes which pick it up and deposit it in the receptacle or receptacles provided for this purpose.
  • the sweeper according to the present invention provides a more effective sweeping action than those known from the prior art.
  • the drive wheel is advantageously shiftable on a shaft or pin which is inclined to the plane of the open side of the housing, and is also turnably mounted, and the pin or shaft is provided on the journal which mounts the auxiliary brush for the aforementioned tilting movement.
  • the drive wheel is advantageously so inclined that it contacts the surface to be swept at a side of the drive wheel which is remote from the adjacent side wall, that is from that portion of the side wall beyond which the annulus of bristles partly projects to the exterior of the housing.
  • FIG. 1 is a perspective view illustrating a sweeper according to the present invention.
  • FIG. 2 is a vertical section through a part of the embodiment in FIG. 1.
  • reference numeral 10 identifies a housing having a frame 11 which is generally annular in configuration and constitutes the circumferential side wall of the housing.
  • the upper side of the frame and of the housing is closed off by a cover or upper portion 12 which is made fast with the frame 1 l.
  • a bracket 13 is mounted on the frame 11 so as to be pivotable about a horizontal axis and a handle (not shown) can be connected with the bracket 13, by screw threading or the like, so that the housing can be moved to-andfro over a surface to be swept by pushing and pulling on this handle.
  • Also located in the interior of the housing are one or more rotary brushes, including at least one brush roller. These brushes also are well known in the art and for the sake of completeness one such a brush roller has been shown in broken lines in FIG. 1 and designated with reference character B. Of course more than one may be present and the roller or rollers will rotate about horizontal axes.
  • receptacles located in the housing will be one or more receptacles which are so positioned that any dirt picked up off the surface to be swept by the brush or brushes B, will be flung into and deposited in the receptacle.
  • the receptacle or receptacles have also not been illustrated as being well known in the art.
  • the brush or brushes B are usually driven by an appropriate driving connection with the wheels on which the sweeper rolls.
  • the sweeper is provided with one or more (two are shown) auxiliary rotary brushes 23, 23.
  • Each has an annulus of bristles which projects outwardly beyond the frame 11 at the open side of the housing 10 and can thus engage dirt located outwardly adjacent the frame 11.
  • the brushes 23, 23 are located at two corners of the housing 10 and are each turnable about a substantially upright axis.
  • the brushes 23, 23 are cupped as is shown by way of the exemplary vertical section taken through the brush 23 and the mounting element which journals it for tilting movement.
  • Each of the brushes 23, 23' is coupled with a drive 24 which drives it in rotation and employs a substantially plate-shaped inclined drive wheel 52.
  • the drive wheel 52 is located within the confines of the annulus of bristles of the respective auxiliary brush, in FIG. 2 the brush 23.
  • the drive wheel 52 is mounted on a pin or shaft 53 so that is can turn about and shift axially of the same.
  • the shaft 53 is a part of or secured to a mounting element 54 having two pins 55 with which it is journalled in the interior of the housing 10 so that it can tilt about an axis passing through the two pins 55.
  • the axis extends transversely of the direction in which the housing 10 can be moved to-and-fro, that is between the lefthand an right-hand side of the housing 10 in FIG. 1, so that each time the direction of movement of the housing 10 is reversed the mounting member 54 will tilt about the axis passing through the two pins 55.
  • This axis extends, of course, at least substantially parallel to the surface to be swept which is diagrammatically illustrated in FIG. 2.
  • the shaft 53 is somewhat inclined to the open side of the housing 10, which means to the surface to be swept that is normally faced by this open side, in such a manner that only that side of the drive wheel 52 which is remote from the part of the frame 11 beyond which the auxiliary brush 23' (or the brush 23) projects, comes in contact with the surface to be swept.
  • the drive wheel 52 has a hub 56 of non-circular exterior configuration, which hub 56 extends into an opening 57 of the hub 58 of the brush 23 or 23; the opening 57 has a cross-section corresponding to that of the hub 56.
  • the outer circumferential surface 59 of the hub 58 of the brush 23' or 23 is received in a recess 60 of the tiltable mounting member 54, and the recess is so configurated that the axis about which the respective auxiliary brush 23 or 23' rotates is upright and substantially normal to the surface to be swept.
  • this energy storing device is in form of a helical spring 61 which assures that the brush 23 or 23 will be retained with its hub 58 in the recess 60, and that the drive wheel 52 will be pressed against a washer or disc 63 which is retained against the free end of the shaft 53 by a screw 62 extending through the washer 63 and threaded into a tapped bore in the shaft 53.
  • the wheel 52 is pushed slightly upwardly (in FIG. 2) against the force of the spring 61, so that the spring 61 will always push it into frictional engagement with the surface to be swept in the manner shown in FIG.
  • the wheel 52 is in contact with the surface to be swept, rolling over the same and being frictionally entrained, and thereby turning the brush 23 or 23 so that that portion of the bristle annulus which is in contact with the surface will brush dirt inwardly of the housing where it can be engaged by the brush or brushes B and deposited in the non-illustrated dirt receptacle.
  • auxiliary brushes 23 or 23' could be provided, and other modifications could be made without departing in any way from the intent and teaching of the invention.
  • the non-round configuration of the hub 56 and the opening 57 assures in a simple manner that the wheel 52 will always rotate the respective brush 23 or 23, despite the fact that their axes of rotation are inclined towards one another as shown in FIG. 2.
  • the use of the washer 63 with the screw 62 as an abutment for the wheel-52 greatly facilitates the assembly of the arrangement, because it is merely necessary to place the various components over the shaft 53, and to thereupon pass the screw 62 through an opening in the washer 63 and thread it into the tapped bore in the free end face of the shaft 53.
  • a combination comprising a housing having a circumferential sidewall and an open side which normally faces a surface to be swept said housing being movable to and fro in opposite directions over said surface; rotary brush means in said housing and partly projecting through said open side for sweeping said surface; a cupped auxiliary brush in said housing and having an upright annulus of bristles which project through said open side and have free ends located in a common plane; mounting means mounting said auxiliary brush for tilting movement in dependence upon the direction of movement of said housing; an inclined drive wheel mounted within the confines of said annulus for axial movement inwardly and outwardly of said open side and cooperating with said auxiliary brush for rotating the same about an upright axis, said drive wheel having a rim; and biasing means biasing said drive wheel in a direction outwardly of said open side so as to maintain contact of said rim of said drive wheel with the surface to be swept.
  • a combination as defined in cliam 1 said mounting means having an upright shaft which is inclined to the plane of said open side; and said drive wheel being mounted on said shaft for rotation about and axial shifting along the same.
  • said mounting means having a recess
  • said auxiliary brush having a hub which is received in said recess; and wherein said shaft extends into said hub, and said biasing means comprises a spring reacting against said drive wheel and said hub so as to urge said hub inwardly of said recess and to bias said drive wheel in said direction outwardly of said open side.
  • biasing means comprises a helical spring.
  • said auxiliary brush having a hub provided with a non-circular opening; and said drive wheel having a drive wheel hub having a cross-section corresponding to that of said opening and being received in the latter.

Landscapes

  • Brushes (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Cleaning In General (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
US389930A 1972-08-19 1973-08-20 Sweeper Expired - Lifetime US3874016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2240852A DE2240852C2 (de) 1972-08-19 1972-08-19 An einer Bodenkehrmaschine angeordnete Lager- und Antriebsvorrichtung für eine rotierende Zusatzbürste

Publications (1)

Publication Number Publication Date
US3874016A true US3874016A (en) 1975-04-01

Family

ID=5853997

Family Applications (1)

Application Number Title Priority Date Filing Date
US389930A Expired - Lifetime US3874016A (en) 1972-08-19 1973-08-20 Sweeper

Country Status (15)

Country Link
US (1) US3874016A (US06272168-20010807-M00014.png)
JP (1) JPS5212499B2 (US06272168-20010807-M00014.png)
AT (1) AT336215B (US06272168-20010807-M00014.png)
AU (1) AU472169B2 (US06272168-20010807-M00014.png)
BE (1) BE795295A (US06272168-20010807-M00014.png)
CA (1) CA983218A (US06272168-20010807-M00014.png)
CH (1) CH550574A (US06272168-20010807-M00014.png)
DE (1) DE2240852C2 (US06272168-20010807-M00014.png)
DK (1) DK145113C (US06272168-20010807-M00014.png)
ES (1) ES193979Y (US06272168-20010807-M00014.png)
FR (1) FR2196141B1 (US06272168-20010807-M00014.png)
GB (1) GB1419599A (US06272168-20010807-M00014.png)
IT (1) IT983457B (US06272168-20010807-M00014.png)
NL (1) NL156588B (US06272168-20010807-M00014.png)
SE (1) SE385185B (US06272168-20010807-M00014.png)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978539A (en) * 1975-06-30 1976-09-07 Bissell, Inc. Floor sweeper with auxiliary rotary brushes
US4689840A (en) * 1984-03-20 1987-09-01 Blanc Gmbh & Company Built-in sink
US6094776A (en) * 1998-04-14 2000-08-01 Oreck Holdings, Llc Brush and spacer assembly for a vacuum cleaner
EP2561785A2 (en) 2011-08-23 2013-02-27 Bissell Homecare, Inc. Auxiliary brush for vacuum cleaner
EP3574816A3 (en) * 2018-05-14 2020-02-26 Black & Decker Inc. Brush assembly for a floor cleaning apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007052514A1 (de) * 2007-10-26 2009-04-30 Ing. Haaga Werkzeugbau Gmbh & Co. Kg Antriebseinheit für einen Tellerbesen und Abdeckeinrichtung für eine Antriebseinheit
JP6634348B2 (ja) * 2016-06-22 2020-01-22 日本航空電子工業株式会社 コネクタ及びケーブルハーネス

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US348778A (en) * 1886-09-07 Street-sweeper
US3748679A (en) * 1972-06-22 1973-07-31 Bissell Inc Floor sweeper with auxiliary surface litter brush means
US3750215A (en) * 1971-07-10 1973-08-07 Leifheit International Sweeping apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7126517U (de) * 1971-10-07 Leifheit G Kg Kehrgerät
DE2055841C3 (de) * 1970-11-13 1974-09-26 Bissell Inc., Grand Rapids, Mich. (V.St.A.) Kehrmaschine, insbesondere mit Handantrieb

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US348778A (en) * 1886-09-07 Street-sweeper
US3750215A (en) * 1971-07-10 1973-08-07 Leifheit International Sweeping apparatus
US3748679A (en) * 1972-06-22 1973-07-31 Bissell Inc Floor sweeper with auxiliary surface litter brush means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978539A (en) * 1975-06-30 1976-09-07 Bissell, Inc. Floor sweeper with auxiliary rotary brushes
US4689840A (en) * 1984-03-20 1987-09-01 Blanc Gmbh & Company Built-in sink
US6094776A (en) * 1998-04-14 2000-08-01 Oreck Holdings, Llc Brush and spacer assembly for a vacuum cleaner
EP2561785A2 (en) 2011-08-23 2013-02-27 Bissell Homecare, Inc. Auxiliary brush for vacuum cleaner
US8631541B2 (en) 2011-08-23 2014-01-21 Bissell Homecare, Inc. Auxiliary brush for vacuum cleaner
EP3574816A3 (en) * 2018-05-14 2020-02-26 Black & Decker Inc. Brush assembly for a floor cleaning apparatus

Also Published As

Publication number Publication date
SE385185B (sv) 1976-06-14
FR2196141A1 (US06272168-20010807-M00014.png) 1974-03-15
JPS5212499B2 (US06272168-20010807-M00014.png) 1977-04-07
BE795295A (fr) 1973-05-29
NL7302267A (US06272168-20010807-M00014.png) 1974-02-21
DE2240852C2 (de) 1982-09-09
DE2240852A1 (de) 1974-02-28
JPS4952456A (US06272168-20010807-M00014.png) 1974-05-21
DK145113C (da) 1983-02-07
CA983218A (en) 1976-02-10
CH550574A (de) 1974-06-28
GB1419599A (en) 1975-12-31
IT983457B (it) 1974-10-31
AU472169B2 (en) 1976-05-20
ATA1088272A (de) 1976-08-15
AU5146573A (en) 1974-12-05
NL156588B (nl) 1978-05-16
AT336215B (de) 1977-04-25
ES193979U (es) 1974-12-16
DK145113B (da) 1982-09-06
FR2196141B1 (US06272168-20010807-M00014.png) 1976-09-10
ES193979Y (es) 1975-03-01

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