EP0403077A1 - Floor cleaning device - Google Patents
Floor cleaning device Download PDFInfo
- Publication number
- EP0403077A1 EP0403077A1 EP90305151A EP90305151A EP0403077A1 EP 0403077 A1 EP0403077 A1 EP 0403077A1 EP 90305151 A EP90305151 A EP 90305151A EP 90305151 A EP90305151 A EP 90305151A EP 0403077 A1 EP0403077 A1 EP 0403077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning device
- plate
- housing
- sealing means
- 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.)
- Granted
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
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4038—Disk 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
- A47L11/02—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
- A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc 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
- A47L11/40—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
- 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
- A47L11/4077—Skirts or splash guards
Definitions
- This invention relates to a floor cleaning device and in particular such a device comprising a plurality e.g. three, cleaning heads, each mounted for rotation about a substantially vertical axis.
- each cleaning head is mounted for rotation below a substantially horizontal plate and driven through a belt and pulley system mounted above the plate.
- a cover bowl is positioned over the system and the plate. The provision of this cover bowl is expensive and adds weight to the device.
- a floor cleaning device comprises at least one cleaning head mounted for rotation below a substantially horizontal plate, drive means located above the plate for causing rotation of the cleaning head, a housing covering the cleaning head, the plate and the drive means, and sealing means located between the housing and the edge of the plate for preventing the ingress of unwanted matter to the drive means.
- the horizontal plate may be in the form of a disc on which a plurality e.g. three, cleaning heads are each mounted for rotation about a vertical axis.
- the disc itself may be freely rotatable about a central vertical axis thereby substantially or completely offsetting the torque reaction arising from the cleaning heads in use.
- the drive means preferably comprises a belt and pulley system which driveably connects an electric motor mounted above the housing to the or each cleaning head.
- the sealing means may be positioned on the plate or on the housing to form a barrier to prevent the ingress of unwanted matter such as water or dirt to the belt and pulley system.
- the known floor cleaning device comprises a housing 1, a disc 2 on which are mounted three rotating cleaning heads 3 (only one shown) each connected by a pulley and belt drive system to a motor 4.
- the motor 4 drives a central pulley 5 through a vertical shaft 6 which in turn drives three pulleys 7 (only one shown), each connected to a cleaning head 3 through a belt 8.
- Each pulley 7 is mounted on a vertical spindle 9 by means of a bearing 10 secured to the disc 2 by fixing bolts 14.
- the spindle 9 is supported at its upper end 12 by an internal bowl 11.
- Each spindle 9 extends downward through the disc 2 and an end fitting 13 allows a cleaning head 3 to be mounted at its lower extremity.
- the internal bowl 11 is mounted via a bearing 15 on a sleeve 16 separate from but coaxially located with respect to the central drive shaft 6.
- the bowl extends and is connected to the peripheral edge 17 of the disc 2 and thereby encloses all the pulleys 5 and 7 and the drive belt 8.
- the disc 2 and internal bowl 11 are freely rotatable on the sleeve 16 thus eliminating the torque reaction which arises by contact between the cleaning heads 3 and the floor 20.
- a fender 19 is provided at the side 21 of the housing 1.
- the cleaning device in accordance with the invention is somewhat similar to that shown in Figure 1 and the same reference numerals have been used.
- the side 21 of the housing 1 is formed with a radially inwardly extending ridge 23 which lies vertically above and close to the peripheral edge 17 of the disc 2.
- This forms a barrier preventing water, dirt and other matter from entering the interior space enclosed by the housing 1 between the edge of the disc 2 and the side of the housing 1 and furthermore from affecting the belt and pulley system located above the disc 2.
- the radially outer portion of the internal bowl 11 becomes superfluous and is replaced by a disc-shaped member 28 or three-armed spider (not shown) freely rotatable on the sleeve 16 and supporting the upper ends 12 of the spindles 9.
- the radially inwardly extending ridge 23 is shown in more detail. It may be formed by a suitable shaping operation e.g. if the housing is of metal, by spinning, or if plastic, by moulding.
- FIGs 4 and 5 Alternative forms of the sealing means are shown in Figures 4 and 5.
- the peripheral edge 17 of the disc is provided with a radially outward extending row of bristles 24 located in a mounting 26 on the underside of the disc.
- the bristles contact the radially inner surface of the housing 1 thereby forming a barrier.
- the row of bristles is replaced by a single elastomeric seal 25 in the form of an annular ring, the radially inner part of the ring being located in a suitable mounting 27 and the radially outer edge rubbing against the radially inner surface of the housing 1.
Landscapes
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
Description
- This invention relates to a floor cleaning device and in particular such a device comprising a plurality e.g. three, cleaning heads, each mounted for rotation about a substantially vertical axis.
- In a known form of cleaning device, each cleaning head is mounted for rotation below a substantially horizontal plate and driven through a belt and pulley system mounted above the plate. In order to prevent the ingress of water, dirt and other matter to the drive system a cover bowl is positioned over the system and the plate. The provision of this cover bowl is expensive and adds weight to the device.
- It is a general object of the invention to provide a less expensive alternative means to prevent the ingress of water and dirt to the drive mechanism.
- In accordance with the invention a floor cleaning device comprises at least one cleaning head mounted for rotation below a substantially horizontal plate, drive means located above the plate for causing rotation of the cleaning head, a housing covering the cleaning head, the plate and the drive means, and sealing means located between the housing and the edge of the plate for preventing the ingress of unwanted matter to the drive means.
- The horizontal plate may be in the form of a disc on which a plurality e.g. three, cleaning heads are each mounted for rotation about a vertical axis. The disc itself may be freely rotatable about a central vertical axis thereby substantially or completely offsetting the torque reaction arising from the cleaning heads in use.
- The drive means preferably comprises a belt and pulley system which driveably connects an electric motor mounted above the housing to the or each cleaning head.
- The sealing means may be positioned on the plate or on the housing to form a barrier to prevent the ingress of unwanted matter such as water or dirt to the belt and pulley system.
- Three embodiments of the invention will now be described by way of example only with reference to the accompanying drawings of which:-
- Figure 1 shows a partial cross-section through part of a known floor cleaning device,
- Figure 2 shows a similar view to that shown in Figure 1 of a floor cleaning device according to a first embodiment of the invention,
- Figure 3 shows on an enlarged scale the sealing means of the device shown in Figure 2,
- Figures 4 and 5 show on enlarged scales alternative sealing means to that illustrated in Figure 3.
- As shown in Figure 1 the known floor cleaning device comprises a housing 1, a disc 2 on which are mounted three rotating cleaning heads 3 (only one shown) each connected by a pulley and belt drive system to a motor 4.
- As can be seen in Figure 1 the motor 4 drives a
central pulley 5 through avertical shaft 6 which in turn drives three pulleys 7 (only one shown), each connected to acleaning head 3 through abelt 8. Eachpulley 7 is mounted on avertical spindle 9 by means of abearing 10 secured to the disc 2 by fixingbolts 14. Thespindle 9 is supported at itsupper end 12 by an internal bowl 11. Eachspindle 9 extends downward through the disc 2 and anend fitting 13 allows acleaning head 3 to be mounted at its lower extremity. - The internal bowl 11 is mounted via a
bearing 15 on asleeve 16 separate from but coaxially located with respect to thecentral drive shaft 6. The bowl extends and is connected to theperipheral edge 17 of the disc 2 and thereby encloses all thepulleys drive belt 8. The disc 2 and internal bowl 11 are freely rotatable on thesleeve 16 thus eliminating the torque reaction which arises by contact between thecleaning heads 3 and the floor 20. Afender 19 is provided at theside 21 of the housing 1. - As shown in Figures 2 and 3 the cleaning device in accordance with the invention is somewhat similar to that shown in Figure 1 and the same reference numerals have been used. However in this construction the
side 21 of the housing 1 is formed with a radially inwardly extendingridge 23 which lies vertically above and close to theperipheral edge 17 of the disc 2. This forms a barrier preventing water, dirt and other matter from entering the interior space enclosed by the housing 1 between the edge of the disc 2 and the side of the housing 1 and furthermore from affecting the belt and pulley system located above the disc 2. Thus the radially outer portion of the internal bowl 11 becomes superfluous and is replaced by a disc-shaped member 28 or three-armed spider (not shown) freely rotatable on thesleeve 16 and supporting theupper ends 12 of thespindles 9. - In Figure 3 the radially inwardly extending
ridge 23 is shown in more detail. It may be formed by a suitable shaping operation e.g. if the housing is of metal, by spinning, or if plastic, by moulding. - Alternative forms of the sealing means are shown in Figures 4 and 5. In Figure 4 the
peripheral edge 17 of the disc is provided with a radially outward extending row ofbristles 24 located in amounting 26 on the underside of the disc. The bristles contact the radially inner surface of the housing 1 thereby forming a barrier. In the construction shown in Figure 5 the row of bristles is replaced by a singleelastomeric seal 25 in the form of an annular ring, the radially inner part of the ring being located in asuitable mounting 27 and the radially outer edge rubbing against the radially inner surface of the housing 1.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8913756 | 1989-06-15 | ||
GB898913756A GB8913756D0 (en) | 1989-06-15 | 1989-06-15 | Floor cleaning device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0403077A1 true EP0403077A1 (en) | 1990-12-19 |
EP0403077B1 EP0403077B1 (en) | 1993-12-01 |
Family
ID=10658481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900305151 Expired - Lifetime EP0403077B1 (en) | 1989-06-15 | 1990-05-14 | Floor cleaning device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0403077B1 (en) |
DE (1) | DE69004864T2 (en) |
GB (1) | GB8913756D0 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2735346A1 (en) * | 1995-06-17 | 1996-12-20 | Gansow Maschbau Gmbh Co Kg | TRAY THAT CAN BE DRIVEN IN ROTATION BY MOTOR AND EQUIPPED WITH CLEANING TOOLS FOR A FLOOR CLEANING MACHINE |
GB2323270A (en) * | 1997-03-20 | 1998-09-23 | Gansow Maschbau Gmbh Co Kg | Attachment of cleaning tools to floor-cleaning machines |
CN104757913A (en) * | 2015-05-04 | 2015-07-08 | 许春虎 | Ground wiping vehicle |
SE1850052A1 (en) * | 2018-01-18 | 2019-07-19 | Scanmaskin Sverige Ab | A floor grinding machine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB657726A (en) * | 1949-03-11 | 1951-09-26 | George William Patchett | Improvements in or relating to floor polishing machines |
US2986756A (en) * | 1956-07-20 | 1961-06-06 | Electrolux Ab | Splash guard for domestic appliance |
US3169262A (en) * | 1964-01-07 | 1965-02-16 | Electrolux Corp | Floor polisher with double-toothed belt drive |
EP0314926A2 (en) * | 1987-11-06 | 1989-05-10 | DULEVO INTERNATIONAL S.p.A. | Scraping device for floor and surface cleaning machines |
-
1989
- 1989-06-15 GB GB898913756A patent/GB8913756D0/en active Pending
-
1990
- 1990-05-14 DE DE1990604864 patent/DE69004864T2/en not_active Expired - Fee Related
- 1990-05-14 EP EP19900305151 patent/EP0403077B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB657726A (en) * | 1949-03-11 | 1951-09-26 | George William Patchett | Improvements in or relating to floor polishing machines |
US2986756A (en) * | 1956-07-20 | 1961-06-06 | Electrolux Ab | Splash guard for domestic appliance |
US3169262A (en) * | 1964-01-07 | 1965-02-16 | Electrolux Corp | Floor polisher with double-toothed belt drive |
EP0314926A2 (en) * | 1987-11-06 | 1989-05-10 | DULEVO INTERNATIONAL S.p.A. | Scraping device for floor and surface cleaning machines |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2735346A1 (en) * | 1995-06-17 | 1996-12-20 | Gansow Maschbau Gmbh Co Kg | TRAY THAT CAN BE DRIVEN IN ROTATION BY MOTOR AND EQUIPPED WITH CLEANING TOOLS FOR A FLOOR CLEANING MACHINE |
GB2323270A (en) * | 1997-03-20 | 1998-09-23 | Gansow Maschbau Gmbh Co Kg | Attachment of cleaning tools to floor-cleaning machines |
US5979000A (en) * | 1997-03-20 | 1999-11-09 | Gansow Gmbh + Co. Kg Maschinenbau | Motor-driven plate with cleaning tools for floor machine |
GB2323270B (en) * | 1997-03-20 | 2001-02-07 | Gansow Gmbh & Co Kg Maschb | Motor-rotatable plate with cleaning tools for a floor-cleaning machine |
CN104757913A (en) * | 2015-05-04 | 2015-07-08 | 许春虎 | Ground wiping vehicle |
SE1850052A1 (en) * | 2018-01-18 | 2019-07-19 | Scanmaskin Sverige Ab | A floor grinding machine |
WO2019143278A1 (en) * | 2018-01-18 | 2019-07-25 | Scanmaskin Sverige Ab | A floor grinding machine |
Also Published As
Publication number | Publication date |
---|---|
DE69004864T2 (en) | 1994-05-11 |
EP0403077B1 (en) | 1993-12-01 |
DE69004864D1 (en) | 1994-01-13 |
GB8913756D0 (en) | 1989-08-02 |
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