US3646629A - Clearer for a carpet sweeper brush - Google Patents
Clearer for a carpet sweeper brush Download PDFInfo
- Publication number
- US3646629A US3646629A US833297A US3646629DA US3646629A US 3646629 A US3646629 A US 3646629A US 833297 A US833297 A US 833297A US 3646629D A US3646629D A US 3646629DA US 3646629 A US3646629 A US 3646629A
- Authority
- US
- United States
- Prior art keywords
- brush
- teeth
- bristles
- clearer
- axis
- 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
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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
- A47L11/4036—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
- A47L11/32—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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/12—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means comprising members of special, e.g. composite, cross-section or with lugs or the like or lateral apertures for supporting or attaching other members
Definitions
- the invention provides, for the unidirectionally rotatable 15/411481 49 50 C, brush of a carpet sweeper, a clearer comb whose teeth are 15/142 38 spaced-apart parallel triangular plates having tips that project into the bristles of the brush.
- An object of this invention is to obviate this difficulty and to provide a construction of clearer, as above discussed, which prevents adhesion of threads and bits of fluff to the bristles, which remains clean at all times, and maintains the entry to the dust collector always free, whilst preventing dirt or other matter from getting out of the dust collector back to the rotating brush upon backward and forward movement of the sweeper.
- the present invention provides a clearer for clearing the unidirectionally rotatable brush of a carpet sweeper to keep it free of adherent matter and debris, which is a comb having teeth in the form of triangular plates spaced apart side-by-side in parallel planes, the tips of said teeth projecting into the bristles of the brush.
- each tooth has a front edge which is inclined at an angle in the range from 60 to 70 relative to the horizontally disposed ones of said bristles or to the horizontal diametral plane of the brush and a rear edge which is substantially perpendic ular to the horizontally disposed bristles or to the horizontal diametral plane of the brush.
- FIG. 1 is a fragmentary vertical longitudinal cross section showing a carpet sweeper incorporating a preferred embodiment of the clearer of the invention.
- FIG. 2 is a fragmentary plan of the brush and clearer assembly with the top of the sweeper omitted.
- a carpet sweeper 1 is fitted with running wheels 2 and a rotatable brush 3.
- the brush 3 rotates unidirectionally only in the direction of the arrow in FIG. 1, so that dirt or other foreign matter picked up by radial bristles 4 of the brush are swept to the right towards the middle of the sweeper as the sweeper travels to the right so as to be received by a dust collector 5.
- Teeth 7 of the clearer 6 are designed as thin triangular plates, as can be seen from FIG. 1,
- each tooth 7 is so orientated that the rear edges 10 of the teeth are located'a substantial distance forward of the brush axis to locate the tips 8 thereof directed towards and preferably disposed substantially at the midpoints of the bristles 4 when the latter are projecting horizontally forward towards the dust collector 5 as shown in FIG. 1.
- the front edge 1 l of each tooth 7 is inclined upward and forward from the forward portion of the brush and the angle 9 between the front edge of each tooth, the edge farther from the brush axis, and the bristles projecting horizontally forward advantageously is in the range from 60 to 70, formin an under bevel.
- the rear edge 10 of each tooth 7 the edge 0 oser to the brush axis preferably extends substantially perpendicularly to the horizontally projecting bristles.
- the clearer can be manufactured from any suitable material, but it has proved particularly successful to make it from a plastics material with the teeth integral with and projecting edgewise forward from the supporting back bar of the clearer, as shown in FlGS. l and 2.
- the bristles 4 of the brush 3 need not necessarily be radially disposed as described, but the relationship of the comb teeth front and rear edges to the forwardly projecting horizontal brush bristles will have such relationship to the forward portion of the horizontal diametral plane of the brush.
- a carpet sweeper comprising a rotatable brush, and a clearer comb for clearing adherent matter and debris from said brush including downwardly tapered triangular plate teeth spaced apart in parallel planes, having apexes projecting downwardly into bristles of said brush having a greater component of movement upward than rearward past said downwardly projecting teeth apexes, each of said comb teeth having an upright edge closer to the axis of rotation of said brush disposed substantially vertically and an upright edge farther from the axis of rotation of said brush inclined downwardly and toward the axis of rotation of said brush to form an under bevel inclined at an angle in the range of 60 to 70 relative to horizontal, at least the upper portion of the under bevel edge of each tooth being located above the path of movement of the brush bristles as the brush rotates, and means supporting said triangular plate comb teeth in cantilever fashion by their apexes at the upper ends of said substantially vertical edges, providing spaces between adjacent upper edge portions of said teeth unobstructed over at least the major portions of
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Brushes (AREA)
Abstract
The invention provides, for the unidirectionally rotatable brush of a carpet sweeper, a clearer comb whose teeth are spaced-apart parallel triangular plates having tips that project into the bristles of the brush.
Description
[ Mar. 7, 1972 United States Patent Bienek 219,848 9/1879 1,420,830 6/1922 Frankenstein [54] CLEARER FOR A CARPET SWEEPER BRUSH [72] Inventor:
Gunter Bienek, Wilhelm-Leuschner-Str, 35, Trier, Germany June 16, 1969 ...l5/48 .....l5l48 .....15/48 [22] Filed:
n n BB mm mm 66 8 6 9 H 0 1 3 7 l 3 l l [21] Appl. No.: 833,297
[51] Int. Cl. [58] Field References Cited 1Claims,2DrawingFigu1-es UNITED STATES PATENTS 1,367,722 2/1921 sm11h......................................,,15/48 PAIENTEUMAR 1 m2 /nventor GUNTER BIENEK ATTO R N E Y CLEARER FOR A CARPET SWEEPER BRUSH This invention relates to a clearer, for clearing adherent matter and debris, from the rotary brush of a carpet sweeper.
Various comblike clearer devices have already been proposed for clearing the bristles of the brushes of carpet sweepers of adherent bits of fluff or the like after the brush has swept up dust and other foreign matter from a carpet. One such clearer device is supposed to prevent threads, bits of fluff and the like, which may become wound around the bristles, from getting back onto the carpet upon subsequent rotation of the brush.
The previously known clearer devices of this type are not satisfactory, since it repeatedly occurs that the comb becomes clogged up with hairs, threads or bits of fluff with the result that the entry to the usual dust collector of the sweeper becomes restricted or completely blocked.
An object of this invention is to obviate this difficulty and to provide a construction of clearer, as above discussed, which prevents adhesion of threads and bits of fluff to the bristles, which remains clean at all times, and maintains the entry to the dust collector always free, whilst preventing dirt or other matter from getting out of the dust collector back to the rotating brush upon backward and forward movement of the sweeper.
With this object in view the present invention provides a clearer for clearing the unidirectionally rotatable brush of a carpet sweeper to keep it free of adherent matter and debris, which is a comb having teeth in the form of triangular plates spaced apart side-by-side in parallel planes, the tips of said teeth projecting into the bristles of the brush.
The construction is conveniently such that the bristles project substantially radially from a hub of the brush, which rotates about a horizontal axis, in which case the teeth are conveniently orientated to be directed substantially towards the midpoints of horizontally disposed ones of said bristles. Preferably each tooth has a front edge which is inclined at an angle in the range from 60 to 70 relative to the horizontally disposed ones of said bristles or to the horizontal diametral plane of the brush and a rear edge which is substantially perpendic ular to the horizontally disposed bristles or to the horizontal diametral plane of the brush.
The invention will be described further, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a fragmentary vertical longitudinal cross section showing a carpet sweeper incorporating a preferred embodiment of the clearer of the invention; and
FIG. 2 is a fragmentary plan of the brush and clearer assembly with the top of the sweeper omitted.
As shown in the drawings, a carpet sweeper 1 is fitted with running wheels 2 and a rotatable brush 3. The brush 3 rotates unidirectionally only in the direction of the arrow in FIG. 1, so that dirt or other foreign matter picked up by radial bristles 4 of the brush are swept to the right towards the middle of the sweeper as the sweeper travels to the right so as to be received by a dust collector 5.
Mounted above the brush 3 is a comblike clearer 6, having teeth 7 penetrating into the bristles 4 which extend substantially radially from the hub of the brush which rotates about a substantially horizontal axis. Teeth 7 of the clearer 6 are designed as thin triangular plates, as can be seen from FIG. 1,
these plates being disposed side-by-side in parallel planes. As can furthermore be appreciated from this figure, the teeth 7 are so orientated that the rear edges 10 of the teeth are located'a substantial distance forward of the brush axis to locate the tips 8 thereof directed towards and preferably disposed substantially at the midpoints of the bristles 4 when the latter are projecting horizontally forward towards the dust collector 5 as shown in FIG. 1. The front edge 1 l of each tooth 7 is inclined upward and forward from the forward portion of the brush and the angle 9 between the front edge of each tooth, the edge farther from the brush axis, and the bristles projecting horizontally forward advantageously is in the range from 60 to 70, formin an under bevel. The rear edge 10 of each tooth 7 the edge 0 oser to the brush axis preferably extends substantially perpendicularly to the horizontally projecting bristles.
Exhaustive tests have shown that with such a design of clearer heavier dirt particles 12 are swept satisfactorily into the dust collector 5. Bits of fluff or threads, which tend to adhere to the rotating brush, are removed from the bristles by the teeth 7 and are then constrained to move upwardly on the front edges 11 of the platelike teeth disposed forward beyond the brush, to fall free of the brush subsequently into the dust collector.5.
The clearer can be manufactured from any suitable material, but it has proved particularly successful to make it from a plastics material with the teeth integral with and projecting edgewise forward from the supporting back bar of the clearer, as shown in FlGS. l and 2.
The invention is, of course, not restricted to the precise details of the foregoing example, and variations may be made thereto. Thus, for example, the bristles 4 of the brush 3 need not necessarily be radially disposed as described, but the relationship of the comb teeth front and rear edges to the forwardly projecting horizontal brush bristles will have such relationship to the forward portion of the horizontal diametral plane of the brush.
1 claim:
1. A carpet sweeper comprising a rotatable brush, and a clearer comb for clearing adherent matter and debris from said brush including downwardly tapered triangular plate teeth spaced apart in parallel planes, having apexes projecting downwardly into bristles of said brush having a greater component of movement upward than rearward past said downwardly projecting teeth apexes, each of said comb teeth having an upright edge closer to the axis of rotation of said brush disposed substantially vertically and an upright edge farther from the axis of rotation of said brush inclined downwardly and toward the axis of rotation of said brush to form an under bevel inclined at an angle in the range of 60 to 70 relative to horizontal, at least the upper portion of the under bevel edge of each tooth being located above the path of movement of the brush bristles as the brush rotates, and means supporting said triangular plate comb teeth in cantilever fashion by their apexes at the upper ends of said substantially vertical edges, providing spaces between adjacent upper edge portions of said teeth unobstructed over at least the major portions of the top edges of said triangular plate teeth for movement of debris upward between said plate teeth and out through the spaces between the upper edge portions of said teeth.
Claims (1)
1. A carpet sweeper comprising a rotatable brush, and a clearer comb for clearing adherent matter and debris from said brush including downwardly tapered triangular plate teeth spaced apart in parallel planes, having apexes projecting downwardly into bristles of said brush having a greater component of movement upward than rearward past said downwardly projecting teeth apexes, each of said comb teeth having an upright edge closer to the axis of rotation of said brush disposed substantially vertically and an upright edge farther from the axis of rotation of said brush inclined downwardly and toward the axis of rotation of said brush to form an under bevel inclined at an angle in the range of 60* to 70* relative to horizontal, at least the upper portion of the under bevel edge of each tooth being located above the path of movement of the brush bristles as the brush rotates, and means supporting said triangular plate comb teeth in cantilever fashion by their apexes at the upper ends of said substantially vertical edges, providing spaces between adjacent upper edge portions of said teeth unobstructed over at least the major portions of the top edges of said triangular plate teeth for movement of debris upward between said plate teeth and out through the spaces between the upper edge portions of said teeth.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB76132U DE1993651U (en) | 1968-06-15 | 1968-06-15 | COMB-LIKE SCRAPER FOR UNI-DIRECTIONAL ROTATING BRUSHES FOR CARPET SWEEPERS. |
Publications (1)
Publication Number | Publication Date |
---|---|
US3646629A true US3646629A (en) | 1972-03-07 |
Family
ID=6978954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US833297A Expired - Lifetime US3646629A (en) | 1968-06-15 | 1969-06-16 | Clearer for a carpet sweeper brush |
Country Status (3)
Country | Link |
---|---|
US (1) | US3646629A (en) |
DE (1) | DE1993651U (en) |
GB (1) | GB1225577A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0042370A1 (en) * | 1980-06-18 | 1981-12-23 | Franz Lex | Brush cover for rotating driven cleaning roll brushes |
US4802254A (en) * | 1988-05-02 | 1989-02-07 | Whirlpool Corporation | Anti-cord swallowing system and method for a floor cleaner |
WO2001087113A1 (en) * | 1999-06-11 | 2001-11-22 | Gustav Jordan | Device for taking care of objects, comprising a scraper element |
US8060967B1 (en) * | 2006-11-10 | 2011-11-22 | Johnson Jr Robert Earl | Rotary hair brush with debris remover |
US8418313B1 (en) | 2009-12-22 | 2013-04-16 | Jonathan L. Miner | Power cord protection system for a floor cleaner |
US20130276263A1 (en) * | 2011-01-14 | 2013-10-24 | Yongbing Feng | Vacuum cleaner and suction nozzle thereof |
US8726441B1 (en) * | 2009-09-28 | 2014-05-20 | Bissell Homecare, Inc. | Floor sweeper with split brush assembly |
US20150289735A1 (en) * | 2012-12-18 | 2015-10-15 | Koninklijke Philips N.V. | Nozzle arrangement for a cleaning device |
US11291345B2 (en) | 2018-08-27 | 2022-04-05 | Techtronic Floor Care Technology Limited | Floor cleaner |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US219848A (en) * | 1879-09-23 | Improvement in carpet-sweepers | ||
US1367722A (en) * | 1919-08-19 | 1921-02-08 | Earle R Smith | Carpet-sweeper-brush cleaner and stripper |
US1420830A (en) * | 1919-01-30 | 1922-06-27 | Frankenstein Henry | Carpet-sweeper attachment |
GB185608A (en) * | 1921-08-12 | 1922-09-14 | Entwisle & Kenyon Ltd | Improvements in carpet sweepers |
US2026414A (en) * | 1934-09-24 | 1935-12-31 | Orson G Burch | Carpet sweeper |
GB1131973A (en) * | 1965-05-27 | 1968-10-30 | Brush Company Ltd Sa | Improvements in and relating to carpet sweepers |
-
1968
- 1968-06-15 DE DEB76132U patent/DE1993651U/en not_active Expired
-
1969
- 1969-06-09 GB GB1225577D patent/GB1225577A/en not_active Expired
- 1969-06-16 US US833297A patent/US3646629A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US219848A (en) * | 1879-09-23 | Improvement in carpet-sweepers | ||
US1420830A (en) * | 1919-01-30 | 1922-06-27 | Frankenstein Henry | Carpet-sweeper attachment |
US1367722A (en) * | 1919-08-19 | 1921-02-08 | Earle R Smith | Carpet-sweeper-brush cleaner and stripper |
GB185608A (en) * | 1921-08-12 | 1922-09-14 | Entwisle & Kenyon Ltd | Improvements in carpet sweepers |
GB194046A (en) * | 1921-08-12 | 1923-03-08 | Entwisle & Kenyon Ltd | Improvements in carpet sweepers |
US2026414A (en) * | 1934-09-24 | 1935-12-31 | Orson G Burch | Carpet sweeper |
GB1131973A (en) * | 1965-05-27 | 1968-10-30 | Brush Company Ltd Sa | Improvements in and relating to carpet sweepers |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0042370A1 (en) * | 1980-06-18 | 1981-12-23 | Franz Lex | Brush cover for rotating driven cleaning roll brushes |
US4802254A (en) * | 1988-05-02 | 1989-02-07 | Whirlpool Corporation | Anti-cord swallowing system and method for a floor cleaner |
WO2001087113A1 (en) * | 1999-06-11 | 2001-11-22 | Gustav Jordan | Device for taking care of objects, comprising a scraper element |
US8060967B1 (en) * | 2006-11-10 | 2011-11-22 | Johnson Jr Robert Earl | Rotary hair brush with debris remover |
US8726441B1 (en) * | 2009-09-28 | 2014-05-20 | Bissell Homecare, Inc. | Floor sweeper with split brush assembly |
US8418313B1 (en) | 2009-12-22 | 2013-04-16 | Jonathan L. Miner | Power cord protection system for a floor cleaner |
US20130276263A1 (en) * | 2011-01-14 | 2013-10-24 | Yongbing Feng | Vacuum cleaner and suction nozzle thereof |
US9848746B2 (en) * | 2011-01-14 | 2017-12-26 | Ecovacs Robotics Co., Ltd. | Vacuum cleaner and suction nozzle thereof |
US20150289735A1 (en) * | 2012-12-18 | 2015-10-15 | Koninklijke Philips N.V. | Nozzle arrangement for a cleaning device |
US9351618B2 (en) * | 2012-12-18 | 2016-05-31 | Koninklijke Philips N.V. | Nozzle arrangement for a cleaning device |
US11291345B2 (en) | 2018-08-27 | 2022-04-05 | Techtronic Floor Care Technology Limited | Floor cleaner |
US11406240B1 (en) | 2018-08-27 | 2022-08-09 | Techtronic Floor Care Technology Limited | Floor cleaner |
Also Published As
Publication number | Publication date |
---|---|
DE1993651U (en) | 1968-09-12 |
GB1225577A (en) | 1971-03-17 |
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