US3517404A - Carpet sweepers - Google Patents

Carpet sweepers Download PDF

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Publication number
US3517404A
US3517404A US698275A US3517404DA US3517404A US 3517404 A US3517404 A US 3517404A US 698275 A US698275 A US 698275A US 3517404D A US3517404D A US 3517404DA US 3517404 A US3517404 A US 3517404A
Authority
US
United States
Prior art keywords
brush roller
bearing
yoke
casing
rollers
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
US698275A
Other languages
English (en)
Inventor
Gunter Leifheit
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 AG
Original Assignee
Guenter Leifheit KG
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 Guenter Leifheit KG filed Critical Guenter Leifheit KG
Application granted granted Critical
Publication of US3517404A publication Critical patent/US3517404A/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
    • A47L11/40—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
    • A47L11/4072—Arrangement of castors or wheels
    • 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
    • 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
    • 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
    • A47L11/4027—Filtering or separating contaminants or debris
    • 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
    • A47L11/4041—Roll shaped surface treating tools
    • 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
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
    • 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
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • Such sweepers have many advantages, the chief advantage being that the dirt which is cast away by the driven brush roller is picked up by the additional brush roller or rollers and moved by it or them towards the driven brush roller.
  • a further advantage is that the pile of the carpet being swept is straightened up by the additional brush roller or rollers in the opposite direction from that in which the main brush roller moves, and the dust or dirt is thereby loosened.
  • the invention has among its objects to provide a carpet sweeper in which some or all of the brush rollers are vertically adjustable with respect to floor engaging drive wheels of the carpet sweeper.
  • a carpet sweeper has a driven brush roller and at least one additional brush roller in which the driven brush roller engages the additional brush roller or rollers and in which the driven brush roller and/ or the additional brush roller or rollers are, by means of one or more bearing yokes, either separately or together vertically adjustable with respect to floor engaging wheels of the carpet sweeper by means of a control member acting on a web or webs of the bearing yoke or yokes either directly or with an adjusting yoke interposed.
  • the carpet sweeper advantageously has four floor engaging drive wheels and two additional brush rollers.
  • the additional brush rollers are rotated by their engagement with the driven brush roller.
  • Vertical adjustment may be effected by the control member which is advantageously formed by a rotatable knob bearing a face cam.
  • FIG. 1 is a perspective view of a carpet sweeper accord ing to the invention
  • FIG. 2 is a corresponding part sectional side view
  • FIG. 3 shows a partially sectioned side view of a second embodiment.
  • FIG. 1 shows only those components of the carpet sweeper which are necessary to an understanding of the invention.
  • FIG. 1 only part of the handle of the carpet sweeper is shown.
  • the components which are not shown may be constructed and shaped in known manner.
  • the carpet sweeper comprises a casing 1 of a box-like shape, made of a plastics material or metal, and having a rim 2 of a resilient material around its bottom edge.
  • Three parallel brush rollers are mounted in the casing 1, a driven brush roller 3 being provided in the middle between two outer additional brush rollers 4.
  • the bristles on the brush roller 3 enable it to engage and thereby rotate the smaller additional brush rollers 4, which in FIG. 2 are mounted independently of roller 3.
  • Each additional brush roller 4 is supported by a dirt container 5 each of which has a deflecting plate 6 and a filter 7.
  • Each filter 7 is secured in the top wall of the container below a vent 8 in the casing 1.
  • Bearing plates 9 are secured to the inside of the two opposite side walls of the casing 1 and are associated with a bearing yoke 10 which cooperates with an adjusting yoke 11.
  • the adjusting yoke 11 is pivotally mounted in the bearing plates 9 at its two ends and is movable by a control member 12.
  • Each bearing plate 9 is secured to the casing 1 by known means such as rivets 13, which each also serve to hold a plate 14 (FIG. 1) On the outside of the casing 1 at each side.
  • Each plate 14 is made of a plastics or sheet metal material and contains a recess to receive a free bent end of a pivotable yoke 15, to which a handle 16 is detachably joined.
  • Each bearing plate 9 has an upwardly extending part 18 and two longitudinally extending parts 19 which are identical but arranged in mirror image to one another one on each side of the part 18.
  • Each longitudinally extending part 19 is divided by folding into three sections a central section 20 of which is arranged parallel with and at a spacing from the casing 1, with the other two sections at an angle to the central section 20.
  • Each central section 20 contains a horizontal slot 21 to receive the end of an axle 22 for mounting floor engaging drive wheels 23.
  • Each pair of wheels 23 and an axle 22 forms a wheel set and two wheel sets are provided to cooperate with drive tracks 24 on the driven brush roller 3.
  • Each axle 22 further supports one of the dirt containers 5 which is adapted to pivot thereon.
  • the horizontal slot 21 allows limited longitudinal displacement of the axle 22.
  • each bearing plate 9 has a pair of lugs 25, which are formed by cutting around three sides of a rectangle in the plate 9 and bending the lug inwardly along the fourth side.
  • Each pair of lugs acts as guides for a side limb of the bearing yoke 10.
  • the side limbs of the bearing yoke 10 each have a hole 26 therein opposite one another acting as journals for an axle of the driven brush roller 3.
  • the bearing yoke 10 is loaded at its ends by springs 27, each of which has two limbs and a portion 28 which is bent into an eyelet shape to engage in an aperture in the web of the bearing yoke 10.
  • the control member 12 is in the form of a rotary knob with an integral bottom surface forming a face cam with a continuously rising and descending surface 17 to eifect vertical adjustment of the bearing yoke 10.
  • a groove 29 containing a spring washer 30 which bears on the inner wall of the casing 1.
  • An annular disc is advantageously provided between the washer 30 and the casing 1 to reduce friction between them.
  • the two additional brush rollers 4 are mounted at each side of the driven roller 3 on shafts 31, both ends of each of which engage in holes 32 in bearing cover plates 33 forming side walls of the dirt containers 5.
  • the holes 32 may be round or slot shaped, either horizontally or vertically orientated.
  • the position of the bearing yoke is controlled by the adjusting yoke 11 which enables the vertical position of the bearing yoke 10 and driven brush roller 3 to be varied.
  • the adjusting yoke 11 is basically U-shaped with its limbs bent several times and supported at their ends in the bearing plates 9 and with its web cooperating with the guiding surface 17 of the control member 12-
  • the vertical position of the adjusting yoke 11 and the driven brush roller 3 can be infinitely varied between limits by rotating the rotary knob forming the control member 12.
  • the springs 27 ensure that the adjusting yoke 11 is always in contract with the surface 17.
  • the driven brush roller 3 is mounted on the part 18 of the bearing plate 9 to be stationary at the same level as the wheels 23.
  • a hearing yoke 10 has side limbs each of which is of inverted T-shape, the cross piece of the T forming bearing arms 34 in which the additional brush rollers 4 are mounted and the stern of the T forming limbs 35 which are guided between the lugs 25 on the bearing plates 9; as in FIG 2 the web of the bearing yoke 10' interacts with the springs 27 and the adjusting yoke 11.
  • the driven brush roller 3 is vertically adjustable with respect to the wheels 23 and additional brush rollers 4 which are rotatable but not otherwise movable with respect to the casing 1.
  • the additional brush rollers 4 are vertically adjustable by a bearing yoke 10' and the driven roller 3 and the wheels 23 are rotatable but not vertically adjustable with respect to the casing 1.
  • a carpet sweeper comprising, in combination, a casing; wheels supporting said casing for movement along a surface; a first brush roller adapted to engage said surface; at least one additional brush roller' having bristles engaging said bristles of said first brush roller; bearing means supporting said brush rollers on said casing for rotation about substantially parallel axes; and transmission means between said wheels and only said first brush roller to drive the latter during movement of said wheels along the surface in direction opposite to the direction of rotation of said wheels while said at least one additional brush roller will, due to the interengagement of its bristles with those of said first brush roller, rotate in a direction opposite to that of the latter.
  • the adjustable bearing means comprises a yoke having a pair of limbs substantially normal to the axis of said one brush roller on which said one brush roller is mounted for rotation about its axis, said adjusting means cooperate with said yoke.
  • said adjusting means comprises a lever mounted at one end in said casing for pivotal movement about a fixed axis substantially parallel to said axes of said rollers, cam means turnably mounted on said casing and having a cam surface engaging the other end of said lever, said lever engaging intermediate its ends said yoke.
  • said cam means comprises a substantially cylindrical member mounted on said casing for turning movement about a substantially vertical axis, said cylindrical member having at one end an operating portion outside said casing, said cam surface being provided at the other end of said member inside said casing.

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  • Brushes (AREA)
US698275A 1967-01-17 1968-01-16 Carpet sweepers Expired - Lifetime US3517404A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEL0055511 1967-01-17
DE19671628693 DE1628693A1 (de) 1967-01-17 1967-01-17 Teppichkehrer

Publications (1)

Publication Number Publication Date
US3517404A true US3517404A (en) 1970-06-30

Family

ID=25753887

Family Applications (1)

Application Number Title Priority Date Filing Date
US698275A Expired - Lifetime US3517404A (en) 1967-01-17 1968-01-16 Carpet sweepers

Country Status (8)

Country Link
US (1) US3517404A (de)
AT (1) AT290773B (de)
CH (1) CH469476A (de)
DE (1) DE1628693A1 (de)
FR (1) FR1552379A (de)
GB (1) GB1208062A (de)
NL (1) NL6800345A (de)
SE (1) SE370012B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631557A (en) * 1969-02-21 1972-01-04 Leifheit International Sweeper
USD870991S1 (en) * 2016-11-11 2019-12-24 Black & Decker, Inc. Sweeper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211559919U (zh) 2019-06-25 2020-09-25 安特尔制品公司 表面清洁装置

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US182346A (en) * 1876-09-19 Improvement i
US238144A (en) * 1881-02-22 Heney a
US240224A (en) * 1881-04-19 Carpet-sweeper
US330590A (en) * 1885-11-17 Geoege w
US346641A (en) * 1886-08-03 Carpet-sweeper
CH6583A (de) * 1893-06-17 1894-01-31 Theodor Dietschy Universal-Reinigungsamschine
US1038170A (en) * 1911-12-11 1912-09-10 Bissell Carpet Sweeper Co Brush adjustment for carpet-sweepers.
US1319836A (en) * 1919-10-28 Cabpet-sweepeb
US1786864A (en) * 1928-06-04 1930-12-30 Bissell Carpet Sweeper Co Carpet-sweeper brush-drive mechanism
US1879752A (en) * 1931-03-07 1932-09-27 Entwisle & Kenyon Ltd Carpet sweeper
US2228528A (en) * 1936-07-31 1941-01-14 Wagner E R Mfg Co Carpet sweeper
US2239276A (en) * 1928-06-04 1941-04-22 smith
US3145405A (en) * 1963-06-24 1964-08-25 Wagner E R Mfg Co Mechanism for adjusting the brush height in carpet sweepers
US3246353A (en) * 1964-11-23 1966-04-19 Wagner E R Mfg Co Adjustable carpet sweeper
US3268936A (en) * 1964-11-17 1966-08-30 Fukuba Hiroshi Manual floor cleaner with pivotally mounted resilient driving wheels
GB1073942A (en) * 1964-07-10 1967-06-28 Short Brothers & Harland Ltd Improvements in or relating to carpet sweepers

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US182346A (en) * 1876-09-19 Improvement i
US238144A (en) * 1881-02-22 Heney a
US240224A (en) * 1881-04-19 Carpet-sweeper
US330590A (en) * 1885-11-17 Geoege w
US346641A (en) * 1886-08-03 Carpet-sweeper
US1319836A (en) * 1919-10-28 Cabpet-sweepeb
CH6583A (de) * 1893-06-17 1894-01-31 Theodor Dietschy Universal-Reinigungsamschine
US1038170A (en) * 1911-12-11 1912-09-10 Bissell Carpet Sweeper Co Brush adjustment for carpet-sweepers.
US1786864A (en) * 1928-06-04 1930-12-30 Bissell Carpet Sweeper Co Carpet-sweeper brush-drive mechanism
US2239276A (en) * 1928-06-04 1941-04-22 smith
US1879752A (en) * 1931-03-07 1932-09-27 Entwisle & Kenyon Ltd Carpet sweeper
US2228528A (en) * 1936-07-31 1941-01-14 Wagner E R Mfg Co Carpet sweeper
US3145405A (en) * 1963-06-24 1964-08-25 Wagner E R Mfg Co Mechanism for adjusting the brush height in carpet sweepers
GB1073942A (en) * 1964-07-10 1967-06-28 Short Brothers & Harland Ltd Improvements in or relating to carpet sweepers
US3268936A (en) * 1964-11-17 1966-08-30 Fukuba Hiroshi Manual floor cleaner with pivotally mounted resilient driving wheels
US3246353A (en) * 1964-11-23 1966-04-19 Wagner E R Mfg Co Adjustable carpet sweeper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631557A (en) * 1969-02-21 1972-01-04 Leifheit International Sweeper
USD870991S1 (en) * 2016-11-11 2019-12-24 Black & Decker, Inc. Sweeper

Also Published As

Publication number Publication date
SE370012B (de) 1974-09-30
CH469476A (de) 1969-03-15
FR1552379A (de) 1969-01-03
NL6800345A (de) 1968-07-18
DE1628693A1 (de) 1972-05-18
GB1208062A (en) 1970-10-07
AT290773B (de) 1971-06-25

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