GB2139878A - Floor care appliance with improved drive train - Google Patents

Floor care appliance with improved drive train Download PDF

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Publication number
GB2139878A
GB2139878A GB08411148A GB8411148A GB2139878A GB 2139878 A GB2139878 A GB 2139878A GB 08411148 A GB08411148 A GB 08411148A GB 8411148 A GB8411148 A GB 8411148A GB 2139878 A GB2139878 A GB 2139878A
Authority
GB
United Kingdom
Prior art keywords
drive train
motor
stages
care appliance
rotary
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
Application number
GB08411148A
Other versions
GB8411148D0 (en
GB2139878B (en
Inventor
Heinz Kaulig
Klaus Stein
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.)
Stein and Co GmbH
Original Assignee
Stein and Co 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 Stein and Co GmbH filed Critical Stein and Co GmbH
Publication of GB8411148D0 publication Critical patent/GB8411148D0/en
Publication of GB2139878A publication Critical patent/GB2139878A/en
Application granted granted Critical
Publication of GB2139878B publication Critical patent/GB2139878B/en
Expired 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
    • A47L11/4063—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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/03—Floor surfacing or polishing machines characterised by having provisions for supplying cleaning or polishing agents
    • 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
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven having rotary 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
    • A47L11/4036—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
    • A47L11/4097—Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

A floor care appliance for use in the cleaning of textile floor coverings employing powder containing solvents, comprises a rotary brush (16), a motor (2) for driving the brush, and a drive train comprising multi-stage speed reducing gearing (5-8), each stage including a toothed pulley and belt drive arrangement. Gear wheels (18,19) may be provided for contra-rotation of rotary brushes. <IMAGE>

Description

SPECIFICATION Floor care appliance with improved drive train This invention relates to a floor care appliance wherein rotary members such as brushes are driven by a motor, through a drive train which reduces the motor speed and increases the motortorqueapplied to the brushes. The appliance may be utilised for dry cleaning textile floor coverings by means of powder containing solvents.
Appliances of this type are made by the firms Vorwerk (Germany), Host (USA) and Certified (USA).
The two latter appliances have two rotary brushes which rotate in opposite directions to one another.
These are very efficient, i.e. they penetrate deep into the pile of the carpet and clean the fibres fom all sides. The two contra-rotating rotary brushes are driven, chiefly for reasons of cost, by small and light electrical motors known as universal motors.
However, as these motors have comparatively high speeds (approximately 10,000 rpm), the appliances must be provided with a drive train with a high reduction ratio in order to obtain a desired relatively low speed for the rotary brushes. This is carried out in the case of the known appliances of this type by a worm gear (Vorwerk) or by costly spur gearing (Host and Certified). As is known to persons skilled in the art, worm gears have a very low efficiency with the result that the majority of the power input is converted into heat, giving considerable lubrication problems. Spur gears also require, for the high speeds of the universal motors, careful mounting and lubrication. In addition, at the above-mentioned speeds spur gears produce unpleasant noise levels which are particularly undesirable in inhabited areas.
An object of the present invention is to provide a floor care appliance with an improved drive train which overcomes these problems.
According to the invention there is provided a floor care appliance including a rotary member for rotatably treating a floor surface, a motor for driving the rotary member, and a drive train comprising a multi-stage speed reducing gearing means for coupling drive from the motor to the rotary member, stages of said gearing means each including toothed pulley means and a belt drivingly engaging the toothed pulley means.
The invention furthermore provides a floor care appliance including first and second rotary members forrotatablytreating afloorsurface; a motorfor driving the rotary members, and a drive train from the motor to the rotary members, the drive train comprising a multi-stage speed reducing gearing means, stages of said gearing means each including a belt drivingly engaging toothed pulley means, and reversing gear means for causing said rotary members to rotate in opposite directions, said reversing gear means being arranged after at least two of said belt speed reduction stages in said drive train from the motor to the rotary members.
The drive train used in. accordance with the invention operates in a particularly noise-free and quiet manner and need not slip. The major advantage of a belt drive resides in its high efficiency which prevents the production of high heat levels.
Preferably, the belts comprise toothed belts which mesh with the pulley means. The toothed belt drive has a long service life and does not in this respect require any maintenance.
Preferably, a plurality of identical belts are used for the stages of the drive train. This is economically advantageous as it requires smaller stocks of spare parts which is particularly important for export purposes. In addition it is possible to reduce the number of different toothed belt pulleys by using a plurality of identical reduction stages. This also lowers production and stock costs. In practice it is also possible to obtain the complete speed reduction, if necessary, using a single type of belt and two toothed belt pulley types.
In orderthatthe invention may be more fully understood an embodiment thereof will now be described by way of example with reference to the accompanying drawings wherein: Figure 1 is a top part sectional view of a floor care device showing arrangement of the drive train and rotary brushes in a surrounding, open housing, Figure 2 is a side view of the arrangement of the gear stages.
An electric motor 2 is disposed in the lower portion 3 of a two-piece housing 1 and provided with a toothed belt pulley 4. The contra-rotating rotary brushes 16 and 17 are driven via the toothed belts 5, 6,7,8 and the toothed belt pulleys 9,10, 11, 12, 13, 14 and 15 with the interpositioning of the pair of gear wheels 18 and 19. The toothed belt pulleys 4 and 10 or 9 and 11 each have the same number of teeth. The first two reduction stages are therefore identical. All the toothed belts 5,6,7 and 8 are completely identical. For the purposes of adaptation to the pairing - cleaning agent/carpet condition - the final reduction stage in this case has a different reduction ratio, but uses the same toothed belts 7, 8 as in the case of the other gear stages.If necessary, this reduction stage may also be embodied with the same reduction ratio as the two other reduction gears for the purposes of savings with respect to individual parts. The gear wheel pair 18, 19 is provided for the speed reversal for the second rotary brush 16, which runs at a greatly reduced speed compared to the motor and transmits half the power.
The appliance may be utilised for dry cleaning carpets and like textile floor coverings, by means of powder containing solvents.
1. A floor care appliance including a rotary member for rotatably treating a floor surface, a motor for driving the rotary member, and a drive train comprising a multi-stage speed reducing gearing means for coupling drive from the motor to the rotary member, stages of said gearing means each including toothed pulley means and a belt drivingly engaging the toothed pulley means.
2. A floor care appliance including first and second rotary members for rottably treating a floor surface; a motor for driving the rotary members, and
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Floor care appliance with improved drive train This invention relates to a floor care appliance wherein rotary members such as brushes are driven by a motor, through a drive train which reduces the motor speed and increases the motortorqueapplied to the brushes. The appliance may be utilised for dry cleaning textile floor coverings by means of powder containing solvents. Appliances of this type are made by the firms Vorwerk (Germany), Host (USA) and Certified (USA). The two latter appliances have two rotary brushes which rotate in opposite directions to one another. These are very efficient, i.e. they penetrate deep into the pile of the carpet and clean the fibres fom all sides. The two contra-rotating rotary brushes are driven, chiefly for reasons of cost, by small and light electrical motors known as universal motors. However, as these motors have comparatively high speeds (approximately 10,000 rpm), the appliances must be provided with a drive train with a high reduction ratio in order to obtain a desired relatively low speed for the rotary brushes. This is carried out in the case of the known appliances of this type by a worm gear (Vorwerk) or by costly spur gearing (Host and Certified). As is known to persons skilled in the art, worm gears have a very low efficiency with the result that the majority of the power input is converted into heat, giving considerable lubrication problems. Spur gears also require, for the high speeds of the universal motors, careful mounting and lubrication. In addition, at the above-mentioned speeds spur gears produce unpleasant noise levels which are particularly undesirable in inhabited areas. An object of the present invention is to provide a floor care appliance with an improved drive train which overcomes these problems. According to the invention there is provided a floor care appliance including a rotary member for rotatably treating a floor surface, a motor for driving the rotary member, and a drive train comprising a multi-stage speed reducing gearing means for coupling drive from the motor to the rotary member, stages of said gearing means each including toothed pulley means and a belt drivingly engaging the toothed pulley means. The invention furthermore provides a floor care appliance including first and second rotary members forrotatablytreating afloorsurface; a motorfor driving the rotary members, and a drive train from the motor to the rotary members, the drive train comprising a multi-stage speed reducing gearing means, stages of said gearing means each including a belt drivingly engaging toothed pulley means, and reversing gear means for causing said rotary members to rotate in opposite directions, said reversing gear means being arranged after at least two of said belt speed reduction stages in said drive train from the motor to the rotary members. The drive train used in. accordance with the invention operates in a particularly noise-free and quiet manner and need not slip. The major advantage of a belt drive resides in its high efficiency which prevents the production of high heat levels. Preferably, the belts comprise toothed belts which mesh with the pulley means. The toothed belt drive has a long service life and does not in this respect require any maintenance. Preferably, a plurality of identical belts are used for the stages of the drive train. This is economically advantageous as it requires smaller stocks of spare parts which is particularly important for export purposes. In addition it is possible to reduce the number of different toothed belt pulleys by using a plurality of identical reduction stages. This also lowers production and stock costs. In practice it is also possible to obtain the complete speed reduction, if necessary, using a single type of belt and two toothed belt pulley types. In orderthatthe invention may be more fully understood an embodiment thereof will now be described by way of example with reference to the accompanying drawings wherein: Figure 1 is a top part sectional view of a floor care device showing arrangement of the drive train and rotary brushes in a surrounding, open housing, Figure 2 is a side view of the arrangement of the gear stages. An electric motor 2 is disposed in the lower portion 3 of a two-piece housing 1 and provided with a toothed belt pulley 4. The contra-rotating rotary brushes 16 and 17 are driven via the toothed belts 5, 6,7,8 and the toothed belt pulleys 9,10, 11, 12, 13, 14 and 15 with the interpositioning of the pair of gear wheels 18 and 19. The toothed belt pulleys 4 and 10 or 9 and 11 each have the same number of teeth. The first two reduction stages are therefore identical. All the toothed belts 5,6,7 and 8 are completely identical. For the purposes of adaptation to the pairing - cleaning agent/carpet condition - the final reduction stage in this case has a different reduction ratio, but uses the same toothed belts 7, 8 as in the case of the other gear stages.If necessary, this reduction stage may also be embodied with the same reduction ratio as the two other reduction gears for the purposes of savings with respect to individual parts. The gear wheel pair 18, 19 is provided for the speed reversal for the second rotary brush 16, which runs at a greatly reduced speed compared to the motor and transmits half the power. The appliance may be utilised for dry cleaning carpets and like textile floor coverings, by means of powder containing solvents. CLAIMS
1. A floor care appliance including a rotary member for rotatably treating a floor surface, a motor for driving the rotary member, and a drive train comprising a multi-stage speed reducing gearing means for coupling drive from the motor to the rotary member, stages of said gearing means each including toothed pulley means and a belt drivingly engaging the toothed pulley means.
2. A floor care appliance including first and second rotary members for rottably treating a floor surface; a motor for driving the rotary members, and a drive train from the motor to the rotary members, the drive train comprising a multi-stage speed reducing gearing means, stages of said gearing means each including a belt drivingly engaging toothed pulley means, and reversing gear means for causing said rotary members to rotate in opposite directions, said reversing gear means being arranged after at least two of said belt speed reduction stages in said drive train from the motor to the rotary members.
3. A floor care appliance according to claim 1 or 2, wherein said belts comprise toothed belts.
4. A floor care appliance according to any preceding claim, wherein said stages utilise substantially identical belts.
5. A floor care appliance according to any preceding claim, wherein the pulleys for at least two of said stages define the same reduction ratio.
6. A floor care appliance according to any preceding claim, wherein all said stages have the same reduction ratio and utilise identical belts.
7. A floor care appliance according to any preceding claim, wherein said rotary members comprise brushes.
8. A floor care appliance according to any preceding claim, wherein said motor comprises a universal electric motor.
9. A floor care appliance substantially as hereinbefore described with reference to the accompanying drawings.
GB08411148A 1983-05-21 1984-05-01 Floor care appliance with improved drive train Expired GB2139878B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833318605 DE3318605A1 (en) 1983-05-21 1983-05-21 DRIVE DEVICE FOR FLOOR MAINTENANCE EQUIPMENT

Publications (3)

Publication Number Publication Date
GB8411148D0 GB8411148D0 (en) 1984-06-06
GB2139878A true GB2139878A (en) 1984-11-21
GB2139878B GB2139878B (en) 1986-09-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB08411148A Expired GB2139878B (en) 1983-05-21 1984-05-01 Floor care appliance with improved drive train

Country Status (2)

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DE (1) DE3318605A1 (en)
GB (1) GB2139878B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0327036A2 (en) * 1988-02-05 1989-08-09 Fedag Tool for a suction cleaner in particular a suction nozzle for a suction cleaner
GB2306306A (en) * 1995-10-20 1997-05-07 Charles Lawrence Group Plc Brush mechanism for artificial play surfaces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106955063B (en) * 2017-05-02 2019-04-12 陈汉元 A kind of small intelligent floor-cleaning machine of interval diastole formula

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159784A (en) * 1965-10-22 1969-07-30 Advance Machine Company 62 115 Carpet or Floor Cleaning Machine.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH115072A (en) * 1925-01-20 1926-06-01 Company Wisconsin Electric Appliance for brushing floors, parquet floors etc.
US1760832A (en) * 1926-08-04 1930-05-27 Superior Floor Surfacing Machi Floor-surfacing machine
US1900889A (en) * 1931-02-06 1933-03-07 Hoover Co Suction cleaner
US2842788A (en) * 1956-01-27 1958-07-15 Racine Ind Plant Inc Carpet scrubbing machine
US3148400A (en) * 1960-12-22 1964-09-15 Mauz & Pfeiffer Carpet beating and cleaning machine
DE1954130U (en) * 1964-06-26 1967-01-26 Siemens Elektrogeraete Gmbh VACUUM CLEANER.
US4099291A (en) * 1977-06-01 1978-07-11 Bowerman Leonard E Vacuum cleaner having magnetic drive for agitator brush

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159784A (en) * 1965-10-22 1969-07-30 Advance Machine Company 62 115 Carpet or Floor Cleaning Machine.
GB1159783A (en) * 1965-10-22 1969-07-30 Advance Machine Co Carpet and Floor-Scrubbing Machine.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0327036A2 (en) * 1988-02-05 1989-08-09 Fedag Tool for a suction cleaner in particular a suction nozzle for a suction cleaner
EP0327036A3 (en) * 1988-02-05 1990-07-25 Fedag Tool for a suction cleaner in particular a suction nozzle for a suction cleaner
GB2306306A (en) * 1995-10-20 1997-05-07 Charles Lawrence Group Plc Brush mechanism for artificial play surfaces
GB2306306B (en) * 1995-10-20 2000-03-22 Charles Lawrence Group Plc Brush mechanism for play surfaces

Also Published As

Publication number Publication date
GB8411148D0 (en) 1984-06-06
DE3318605A1 (en) 1984-11-29
GB2139878B (en) 1986-09-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920501