US3643276A - Floor-cleaning machine - Google Patents

Floor-cleaning machine Download PDF

Info

Publication number
US3643276A
US3643276A US25699A US3643276DA US3643276A US 3643276 A US3643276 A US 3643276A US 25699 A US25699 A US 25699A US 3643276D A US3643276D A US 3643276DA US 3643276 A US3643276 A US 3643276A
Authority
US
United States
Prior art keywords
cleaning tool
floor
cleaning
housing
machine according
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
US25699A
Other languages
English (en)
Inventor
Eberhard Worwag
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.)
Progress Elektrogeraete Mauz and Pfeiffer GmbH and Co
Original Assignee
Progress Elektrogeraete Mauz and Pfeiffer GmbH and Co
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
Priority claimed from DE19696913812 external-priority patent/DE6913812U/de
Priority claimed from DE19696913820 external-priority patent/DE6913820U/de
Application filed by Progress Elektrogeraete Mauz and Pfeiffer GmbH and Co filed Critical Progress Elektrogeraete Mauz and Pfeiffer GmbH and Co
Application granted granted Critical
Publication of US3643276A publication Critical patent/US3643276A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47L11/4075—Handles; 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/18—Floor surfacing or polishing machines motor-driven with rotating tools the tools being roll brushes
    • 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • 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
    • A47L11/4036—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
    • A47L11/4055—Movement of the tools or the like perpendicular to the cleaning surface for lifting the tools to a non-working position
    • 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
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes

Definitions

  • ABSTRACT A floor-cleaning machine with a cleaning tool which is adapted to be driven by a motor and is rotatably journaled between two supporting arms, said supporting arms being provided with plug-in coupling means for rotatably engaging and supporting said cleaning tool, said supporting arms together with said cleaning tool being pivotable selectively from a position within the housing to a position outside the housing and vice versa.
  • the present invention relates to a floor-cleaning machine in which the dust is picked up by suction, and which is equipped with a motor operable cleaning tool that is rotatably journaled between two supporting arms.
  • the cleaning tool may be formed, for instance, by a roller-shaped rotatable body and may be provided with beater elements and/or brush means.
  • the cleaning tool is mounted in such a manner that it is firmly supported between two bearing areas.
  • the drive of the cleaning tool is effected, for instance, by a transmission belt which is guided between the said two bearing areas of the cleaning tool on the latter itself through the intervention of a pulley.
  • the cleaning tool has the drawback that the cleaning tool can be exchanged only after a complicated disassembly and assembly. For instance, for exchanging the cleaning tool, a number of screws frequently with different pitch have to be loosened, ball bushings and ball bearings have to be removed and adjusting screws have to be withdrawn. This disassembly work make it practically impossible to employ a plurality of cleaning tools in the course of one cleaning cycle.
  • the various floor coverings which now-a-days are normal in a house or apartment, it is indispensable when cleaning such floor covers, to employ the respective most favorable cleaning tool.
  • an object of the present invention to provide a floor-cleaning machine of the above-mentioned general type which will make it possible to exchange the cleaning too] in a minimum of time and in a simple operation.
  • FIG. 1 represents a top view of a floor cleaning machine according to the invention with the housing cover opened up.
  • FIG. 2 is a section taken along the line lI-II of FIG. 1.
  • FIG. 3 illustrates on an enlarged scale the portion encircled in FIG. I by the dot-dash circle X.
  • the floor cleaning machine according to the present invention is characterized primarily in that the cleaning tool is journaled on supporting arms by means of plug couplings which are easily detachable in axial direction, while at least one plug coupling is movably arranged in its axial direction.
  • the cleaning tool can easily be detached from its bearing and can be exchanged, for instance, for another cleaning tool.
  • the supporting arm which is provided with the movable plug coupling is movable in an axial plane of the tool and is preferably pivotably mounted so that by pivoting this supporting arm outwardly, the coupling is detached from the cleaning tool, and the cleaning tool can be withdrawn from the oppositely located coupling.
  • one plug coupling preferably the plug coupling oppositely located to the movable plug coupling is drivingly connected to the motor, for instance, by means of a belt drive. Due to the fact that this driving connection is provided only with the stationary plug coupling with regard to the axial direction of the cleaning tool, a simple construction of the floor-cleaning machine is obtained.
  • the detachment or exchange of the cleaning tool is furthermore facilitated by another feature of the invention, namely, by the fact that the cleaning tool with the two supporting arms is pivotable upwardly out of the machine housing which is preferably covered by a cover so that also the cleaning tool will be easily accessible at the upper edge of the machine housing and can be handled accordingly.
  • the supporting arms consist of a resilient material, a separate pivotal mounting of the supporting arm carrying the plug coupling is not necessary for detachment of this coupling because in this instance it is merely necessary to pivot the supporting arm outwardly against the spring force of the latter.
  • the supporting arms are pivotable about an axis which is parallel to the tool axis so that in particular for relatively great pivot movements for withdrawing the cleaning tool from the machine housing, an easy mounting of the supporting arms will be assured.
  • the supporting arms can be interconnected by at least one spring so that by means of springs they can be moved toward each other. If the spring is formed by a traverse, and if this traverse is located between the mounting of the supporting arms on the machine housing and the cleaning tool, preferably parallel to the axis of said cleaning tool, the two supporting arms are held against each other so that they cannot unduly move perpendicularly to the axis of the cleaning tool in a direction toward each other.
  • the supporting arms form one piece with the housing and are preferably made of synthetic material so that a particularly simple construction of the floor-cleaning machine can be realized.
  • the supporting arms may in a simple manner by double joints, preferably so-called film joints, be pivotally journaled on the housing in two planes located transverse with regard to each other while the film joint may form one piece with the machine housing and/or with the supporting arm.
  • each plug coupling comprises a preferably crowned extension which is rotatably mounted on the pertaining supporting arm and is adapted to engage a recess on the end face of the shaft of the cleaning tool.
  • FIGS. 1 to 3 shows a floor cleaning machine with a housing 1 which, in the vicinity of its rear side, is mounted on rollers 2 and has its front portion resting on the floor by means of a skid 3.
  • the skid 3 defines a longitudinally extending substantially rectangular opening 4 through which extends a cleaning tool 5 partially downwardly for engagement with the floor surface to be cleaned.
  • the cleaning tool 5 is rotatably mounted on a horizontal shaft which extends perpendicularly with regard to the working direction.
  • a handle mounting 6 is provided at the rear range of the housing upper side for receiving a handle bar or the like.
  • a motor blower unit 7 In a housing chamber located in the rear section of the machine housing there is provided a motor blower unit 7, the axis of which is parallel to the axis of the cleaning tool.
  • This blower unit 7 produces the necessary suction by means of which the soil loosened by the cleaning tool 5 is drawn into a dust collector, not illustrated.
  • the motor blower 7 further more serves for driving the cleaning tool 5 which at one side of the housing is adapted to be drivingly connected to a pulley 9 which is drivingly connected with counter gears 11 through a belt 8, said pulley 9 being coaxial with the cleaning tool 5.
  • the counter gears or transmission 11 are adapted to be driven by the motor blower unit 7.
  • the transmission 11 serves for reducing the speed of the cleaning tool.
  • the pulley 9 is rotatably mounted on a supporting arm 10. At the oppositely located housing inner side there is provided a further supporting arm 12 which is adapted by means of a plug coupling 113 to be connected to the shaft of the cleaning tool 5. In a corresponding manner, also the pulley 9 has a nonillustrated plug coupling for the detachable connection with the other shaft end of the cleaning tool 5.
  • the two supporting arms l0, 12 are in spaced relationship to the cleaning tool 5 pivotable about a horizontal shaft in the machine housing 1 and extend from the pivot axis in the direction toward the front side of the machine housing I. Furthermore, the two supporting arms 10, 12 are interconnected by a traverse [5 which extends parallel to the axis of the cleaning tool 5 and is located between said tool 5 and the pivot mounting of the supporting arms l0, 12 on housing 1.
  • the front portion of the top side of the housing chamber receiving the motor blower 7 is provided with a cover 14 which is mounted for pivotal movement about an axis which is parallel to the axis of the cleaning tool 5.
  • a cover 14 When said cover 14 is in its downwardly pivoted connection, it closes the housing chamber in which the cleaning tool is located.
  • the supporting arms 10, 12 After pivoting the cover 14 upwardly into the position shown in FIG. 2, the supporting arms 10, 12 can be pivoted upwardly about the horizontal pivot axis, so that the cleaning tool 5 will, above the upper edge of the machine housing, be easily accessible.
  • the supporting arms l0, 12 can be held, for instance, by an angle-shaped pivotal abutment having associated therewith a counter abutment formed by a traverse 15 which represents a spring.
  • the plug coupling connected to the pulley 9 and arranged on the supporting arm 10 is so designed that it will be suitable as bearing element for the cleaning tool 5 and can also be used for transferring the torque to said cleaning tool.
  • a floor cleaning machine which includes: housing means having a bottom with a cutout therein, two supporting arms pivotally supported by said housing means, motor means located within said housing means, cleaning tool means drivingly connectable to said motor means and rotatably supported by said arms, said arms being pivotable from a first position in which said cleaning tool means is within said housing means and partially extends through said cutout to a second position in which said cleaning tool means is outside said housing means and vice versa, at least one end portion of said cleaning tool means being provided with coaxial recess means, and at least one of said arms adjacent said recess means including plug-in coupling means for selectively engaging said cleaning tool means to rotatably support the same and disengaging said cleaning tool means to selectively service or exchange said cleaning tool means.
  • a floor-cleaning machine according to claim 1, in which said supporting arms together with said cleaning tool means are pivotable to such an extent that said cleaning tool means is outside of said housing means.
  • a floor-cleaning machine according to claim 1, in which said supporting arms are of resilient material.
  • said plug-in coupling means comprises a crowned extension rotatably joumaled in one end portion of the respective supporting arm and adapted to engage the respective cutout.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
US25699A 1969-04-05 1970-04-06 Floor-cleaning machine Expired - Lifetime US3643276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19696913812 DE6913812U (de) 1969-04-05 1969-04-05 Kettenschloss
DE19696913820 DE6913820U (de) 1969-04-05 1969-04-05 Fussbodenreinigungsmaschine

Publications (1)

Publication Number Publication Date
US3643276A true US3643276A (en) 1972-02-22

Family

ID=25946325

Family Applications (1)

Application Number Title Priority Date Filing Date
US25699A Expired - Lifetime US3643276A (en) 1969-04-05 1970-04-06 Floor-cleaning machine

Country Status (6)

Country Link
US (1) US3643276A (enrdf_load_stackoverflow)
AT (1) AT316942B (enrdf_load_stackoverflow)
FR (1) FR2038282B1 (enrdf_load_stackoverflow)
GB (1) GB1248357A (enrdf_load_stackoverflow)
NL (1) NL7004887A (enrdf_load_stackoverflow)
SE (1) SE361810B (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892003A (en) * 1973-03-16 1975-07-01 Tennant Co Power floor treating apparatus
US3906585A (en) * 1972-12-15 1975-09-23 Electrolux Ab Floor treating apparatus
USD289933S (en) 1986-07-01 1987-05-19 Shop-Vac Corporation Sweeper
USD290055S (en) 1986-07-01 1987-05-26 Shop-Vac Corporation Sweeper
US5819352A (en) * 1996-12-16 1998-10-13 White Consolidated Industries, Inc. Mount for motorized broom
US5960514A (en) * 1997-11-10 1999-10-05 The Hoover Company Wheel driven suction nozzle
WO2008135120A1 (de) * 2007-05-04 2008-11-13 Alfred Kärcher Gmbh & Co. Kg Fahrbares kehrgerät mit bürstenwalze und kehrkante, die gemeinsam schwenkbar sind
US20130180547A1 (en) * 2012-01-12 2013-07-18 Kent Research Corporation Surface cleaning machines and methods of use
US20160220081A1 (en) * 2015-01-30 2016-08-04 Sharkninja Operating Llc Surface cleaning head including removable rotatable driven agitator
US9955832B2 (en) 2015-01-30 2018-05-01 Sharkninja Operating Llc Surface cleaning head with removable non-driven agitator having cleaning pad
US10076183B2 (en) 2015-08-14 2018-09-18 Sharkninja Operating Llc Surface cleaning head
EP3250102B1 (en) 2015-01-30 2022-01-26 SharkNinja Operating LLC Surface cleaning head including openable agitator chamber and removable agitators for use therein
US11602251B2 (en) 2015-01-30 2023-03-14 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
US11627856B2 (en) 2018-08-27 2023-04-18 Techtronic Floor Care Technology Limited Floor cleaner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414899A1 (fr) * 1978-01-20 1979-08-17 Olivier Ets Georges Dispositif de fixation demontable d'une brosse ou autre element tournant pour appareil de nettoyage
DE2946732A1 (de) * 1979-11-20 1981-05-27 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Bodenbearbeitungsgeraet
US5231725A (en) * 1992-07-02 1993-08-03 Tennant Company No-tool brush changing means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1572987A (en) * 1922-07-31 1926-02-16 Campbell John Robert Combined floor waxer and polisher
US3012267A (en) * 1959-12-08 1961-12-12 Gen Electric Vacuum cleaner with movable nozzle brush
US3204281A (en) * 1961-04-04 1965-09-07 Licentia Gmbh Brushing and beating device for vacuum cleaners
US3448485A (en) * 1965-01-21 1969-06-10 Mauz & Pfeiffer Sweeper

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904972A (en) * 1931-01-21 1933-04-18 Hoover Co Suction cleaner
GB474619A (en) * 1936-05-07 1937-11-04 Entwisle & Kenyon Ltd Improvements in or relating to carpet sweepers
US2531430A (en) * 1938-10-20 1950-11-28 Heftler Paul Carpet sweeper brush and wheel pressure adjusting mechanism
BE526498A (enrdf_load_stackoverflow) * 1953-05-21
DE1911642U (de) * 1965-01-16 1965-03-11 Guenther Leifheit K G Teppichkehrer, in dessen gehaeuse laufraeder und eine vorzugsweise angetriebene buerstenwalze gelagert sind.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1572987A (en) * 1922-07-31 1926-02-16 Campbell John Robert Combined floor waxer and polisher
US3012267A (en) * 1959-12-08 1961-12-12 Gen Electric Vacuum cleaner with movable nozzle brush
US3204281A (en) * 1961-04-04 1965-09-07 Licentia Gmbh Brushing and beating device for vacuum cleaners
US3448485A (en) * 1965-01-21 1969-06-10 Mauz & Pfeiffer Sweeper

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906585A (en) * 1972-12-15 1975-09-23 Electrolux Ab Floor treating apparatus
US3892003A (en) * 1973-03-16 1975-07-01 Tennant Co Power floor treating apparatus
USD289933S (en) 1986-07-01 1987-05-19 Shop-Vac Corporation Sweeper
USD290055S (en) 1986-07-01 1987-05-26 Shop-Vac Corporation Sweeper
US5819352A (en) * 1996-12-16 1998-10-13 White Consolidated Industries, Inc. Mount for motorized broom
US5960514A (en) * 1997-11-10 1999-10-05 The Hoover Company Wheel driven suction nozzle
DE19852750B4 (de) * 1997-11-10 2007-12-27 The Hoover Co., North Canton Saugdüse
WO2008135120A1 (de) * 2007-05-04 2008-11-13 Alfred Kärcher Gmbh & Co. Kg Fahrbares kehrgerät mit bürstenwalze und kehrkante, die gemeinsam schwenkbar sind
US20130180547A1 (en) * 2012-01-12 2013-07-18 Kent Research Corporation Surface cleaning machines and methods of use
US20160220081A1 (en) * 2015-01-30 2016-08-04 Sharkninja Operating Llc Surface cleaning head including removable rotatable driven agitator
US9655486B2 (en) * 2015-01-30 2017-05-23 Sharkninja Operating Llc Surface cleaning head including removable rotatable driven agitator
US9955832B2 (en) 2015-01-30 2018-05-01 Sharkninja Operating Llc Surface cleaning head with removable non-driven agitator having cleaning pad
US10226157B2 (en) 2015-01-30 2019-03-12 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
EP3250102B1 (en) 2015-01-30 2022-01-26 SharkNinja Operating LLC Surface cleaning head including openable agitator chamber and removable agitators for use therein
US11602251B2 (en) 2015-01-30 2023-03-14 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
US11607095B2 (en) 2015-01-30 2023-03-21 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
US11759068B2 (en) 2015-01-30 2023-09-19 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
US10076183B2 (en) 2015-08-14 2018-09-18 Sharkninja Operating Llc Surface cleaning head
US11627856B2 (en) 2018-08-27 2023-04-18 Techtronic Floor Care Technology Limited Floor cleaner

Also Published As

Publication number Publication date
AT316942B (de) 1974-08-12
NL7004887A (enrdf_load_stackoverflow) 1970-10-07
SE361810B (enrdf_load_stackoverflow) 1973-11-19
GB1248357A (en) 1971-09-29
FR2038282A1 (enrdf_load_stackoverflow) 1971-01-08
FR2038282B1 (enrdf_load_stackoverflow) 1974-06-14

Similar Documents

Publication Publication Date Title
US3643276A (en) Floor-cleaning machine
CN109645893B (zh) 一种清洁机器人
EP3620092A1 (en) Cleaner for cleaning robot
US3631557A (en) Sweeper
US20170290487A1 (en) Dusting device for cleaning machine
CN109381131B (zh) 一种自动拖地机上的拖布驱动机构
US2102645A (en) Double brush type floor tool for air-method cleaners
US2250282A (en) Suction cleaner
CN215227296U (zh) 地刷、清洁设备及清洁装置
US3448485A (en) Sweeper
US3121895A (en) Scrubbing machine
CN114794978A (zh) 清洁装置及具有其的清洁器具
US2287515A (en) Vacuum cleaner
CN116439605A (zh) 清洁机器人
US1912386A (en) Electrically operated suction cleaner
CA2107832A1 (en) Vacuum cleaners
US3022529A (en) Rotary floor polisher
US2842792A (en) Surface cleaning tool with pressure and floating brushes
CN210383783U (zh) 一种自动拖地机上的拖布驱动机构
JP2960811B2 (ja) 電気掃除機の吸込口体
TWI573548B (zh) Cleaning device at the bottom of the cleaning machine and how to operate it
CN215227294U (zh) 地刷、清洁设备及清洁装置
CN218427612U (zh) 一种木材异性抛光机
CN108814470A (zh) 一种可清理底板顽固污渍的拖把
CN217185939U (zh) 一种浮动式滚刷机构