US20060130272A1 - Wet-cloth brush for vacuum cleaner and a vacuum cleaner having the same - Google Patents
Wet-cloth brush for vacuum cleaner and a vacuum cleaner having the same Download PDFInfo
- Publication number
- US20060130272A1 US20060130272A1 US11/183,971 US18397105A US2006130272A1 US 20060130272 A1 US20060130272 A1 US 20060130272A1 US 18397105 A US18397105 A US 18397105A US 2006130272 A1 US2006130272 A1 US 2006130272A1
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- US
- United States
- Prior art keywords
- wet
- cloth
- brush
- brush body
- boards
- 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.)
- Abandoned
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Classifications
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- 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
- A47L11/204—Floor surfacing or polishing machines combined with vacuum cleaning devices having combined drive for brushes and for vacuum cleaning
- A47L11/206—Floor surfacing or polishing machines combined with vacuum cleaning devices having combined drive for brushes and for vacuum cleaning for rotary 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0405—Driving means for the brushes or agitators
- A47L9/0416—Driving means for the brushes or agitators driven by fluid pressure, e.g. by means of an air turbine
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0427—Gearing or transmission means therefor
- A47L9/0433—Toothed gearings
Definitions
- the present invention relates to a brush for a vacuum cleaner. More particularly, the present invention relates to a wet-cloth brush for a vacuum cleaner, embodied by attaching a wet-cloth to a brush.
- FIG. 1 illustrates a conventional wet-cloth brush of a vacuum cleaner.
- the conventional wet-cloth brush 1 for a vacuum cleaner comprises a brush body 10 , a fan 20 , a power transmitter 30 , and a wet-cloth board 40 .
- the brush body 10 has an air inducing path 11 for drawing in dust-laden air by a suction force generated in a cleaner body (not shown).
- the fan 20 is mounted on the air inducing path 11 of the brush body 10 to be rotated by the dust-laden air which is drawn in.
- a pinion gear 21 is mounted under the fan 20 to rotate in association with the fan 20 .
- the power transmitter 30 comprises a pulley gear 31 , first and second belts 35 and 37 , a first pulley 36 and a second pulley (not shown).
- the pulley gear 31 comprises a gear part 32 meshed with the pinion gear 21 and first and second pulley parts 33 and 34 formed on both sides of the gear part 32 .
- the first pulley 36 and the second pulley (not shown) are rotatably mounted to the brush body 10 and have a protrusion (not shown) at a certain distance from a rotational center thereof, respectively.
- recesses (not shown) are formed for insertion of the protrusions of the first pulley 36 and the second pulley.
- the above-structured wet-cloth brush 1 operates as follows.
- the fan 20 mounted on the air inducing path 11 is rotated.
- the pinion gear 21 disposed under the fan 20 is rotated. Therefore, the gear part 32 of the pulley gear 31 in mesh with the pinion gear 21 is rotated.
- the pulley gear 31 rotates according to rotation of the gear part 32 , the first pulley 36 and the second pulley are rotated, which are connected with the first and the second pulley parts 33 and 34 of the pulley gear 31 through the first and the second belts 35 and 37 .
- the protrusions of the first pulley 36 and the second pulley crank and consequently, the wet-cloth board 40 engaged with the protrusions of the first and the second pulleys 36 crank.
- the wet-cloth attached to a lower surface of the wet-cloth board 40 wipes away a surface being cleaned, such as a floor.
- the wet-cloth board 40 reciprocates very fast, and such a fast motion increases noise and vibration.
- the vibration is transmitted up to a handle through an extension pipe 3 of the vacuum cleaner, thereby making the user uncomfortable.
- an aspect of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present invention is to provide a wet-cloth brush for a vacuum cleaner, capable of reducing noise and vibration by decreasing a motional speed of a wet-cloth board and by providing a plurality of wet-cloth boards that symmetrically operate, and a vacuum cleaner having the same.
- Another aspect of the present invention is to provide a wet-cloth brush for a vacuum cleaner, enabling a user to instantly check the performance of the wet-cloth brush by making the wet-cloth in operation seen from above the wet-cloth brush, and a vacuum cleaner having the same.
- a wet-cloth brush for a vacuum cleaner comprising a brush body, a fan mounted to the brush body to be rotated by drawn-in air, a plurality of eccentric cams mounted to the brush body and operated in association with a power transmitter that transmits a rotational power of the fan, and at least two wet-cloth boards separably mounted to the brush body to move along a locus of the eccentric cam.
- the power transmitter comprises a plurality of worms mounted to rotation shafts protruded from opposite sides of the fan; and a plurality of worm wheels meshing with the worms having the eccentric cam at a lower end thereof, respectively.
- the worm wheels formed at both sides of the fan are rotated in the opposite directions other.
- the wet-cloth boards comprises a cam groove formed as a long groove for insertion of the eccentric cam; and a guide projection formed at one side of the cam groove and inserted in a guide formed as a long groove on the brush body.
- the two wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.
- the two wet-cloth boards respectively have a sloping edge on the sides facing each other.
- the wet-cloth boards are mounted to a lower part of the brush body to partly protrude from brush body.
- a vacuum performing wet-cleaning by drawing in dust-laden air through a wet-cloth brush wherein cloth brush comprises a brush body; a fan mounted to the brush body to be rotated by the drawn-in air; first and second worms respectively mounted to rotation shafts formed on both sides of the fan; first and second worm wheels mounted in the brush body to mesh with the first and the second worms; first and second eccentric cams respectively mounted at a lower part of the first and the second worm wheels and deviated from rotational centers of the worm wheels; and first and second wet-cloth boards including a cam groove formed as a long groove for insertion of anyone of the first and the second eccentric cams, and a guide projection formed at one side of the cam groove and inserted in a guide groove formed as a long groove in the brush body.
- the first and the second wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.
- the first and the second wet-cloth boards respectively have a sloping edge on the sides facing each other.
- the first and the second wet-cloth boards are mounted to a lower part of the brush body to partly protrude from the brush body.
- the noise and vibration during the cleaning work can be reduced because the two wet-cloth board reciprocates oppositely to each other at a low speed.
- the user can instantly recognize the operation of the wet-cloth because the wet-cloth boards are seen from above the wet-cloth brush.
- FIG. 1 is a perspective view showing an example of a conventional wet-cloth brush for a vacuum cleaner
- FIG. 2 is a perspective view of a wet-cloth brush for a vacuum cleaner according to an embodiment of the present invention
- FIG. 3 is a bottom view of the wet-cloth brush of FIG. 2 ;
- FIG. 4 is a partial, perspective view of the wet-cloth brush according to an embodiment of the present invention, for explaining the power transmission structure
- FIG. 5 is an exploded, perspective view showing an eccentric cam, a guide groove and a cam groove of the wet-cloth brush according to an embodiment of the present invention
- FIG. 6 is a view for illustrating an assembly structure of first and second eccentric cams of the wet-cloth brush according to an embodiment of the present invention
- FIG. 7 is a view showing an exemplary wet-cloth board of the wet-cloth brush according to an embodiment of the present invention.
- FIGS. 8A to 8 C are views for illustrating a reciprocating motion of two wet-cloth boards of a wet-cloth brush according to an embodiment of the present invention.
- FIG. 9 is a perspective view of a vacuum cleaner comprising the wet-cloth brush according to an embodiment of the present invention.
- a wet-cloth brush 100 for a vacuum cleaner comprises a brush body 110 , a fan 120 , a power transmitter 130 , eccentric cams 141 and 142 , and wet-cloth boards 151 and 152 .
- the brush body 110 is detachably mounted to a pipe 221 of an extension pipe.
- the brush body 110 has an air inducing path 112 along which a dust-laden air, being drawn in through an air inlet 111 disposed at a lower part thereof, flows toward the pipe 221 .
- a cover (not shown) is attached at an upper part of the brush body 110 , thereby shielding the fan 120 and the power transmitter 130 and forming the air inducing path 112 .
- the fan 120 comprises a blade part 121 , and first and second rotation shafts 122 and 123 projected from rotational centers of opposite ends of the blade part 121 .
- the fan 120 is rotatably mounted in the air inducing path 112 of the brush body 110 by the first and the second rotation shafts 122 and 123 .
- the first and the second rotation shafts 122 and 123 are supported by ball bearings 124 and 125 , respectively.
- the power transmitter 130 consists of a worm and a worm wheel having a significant reduction gear ratio.
- the wet-cloth brush 100 of the present embodiment comprises first and second power transmitters 131 and 132 to transmit power of the first and the second rotation shafts 122 and 123 of the fan 120 .
- the first power transmitter 131 comprises a first worm 133 mounted to the first rotation shaft 122 of the fan 120 and a first worm wheel 134 meshed with the first worm 133 and rotated parallel with respect to the brush body 110 .
- the second power transmitter 132 is disposed to correspond to the first power transmitter 131 with respect to the fan 120 .
- the second power transmitter 132 comprises a second worm 135 mounted to the second rotation shaft 123 and a second worm wheel 136 meshed with the second worm 135 and rotated parallel with respect to the brush body 110 .
- the first and the second worm wheels 134 and 136 are rotatably supported by first and second rotation supporting members 114 and 116 such as bearing and bush mounted to the brush body 110 .
- the first worm and worm wheel 133 and 134 and the second worm and worm wheel 135 and 136 may be applied by a worm and a worm wheel rotating in the same direction. More specifically, the first worm and worm wheel 133 and 134 and the second worm and worm wheel 135 and 136 may rotate all to the right.
- the first worm and worm wheel 133 and 134 rotate in the opposite direction to the second worm and worm wheel 135 and 136 .
- the first worm and worm wheel 133 and 134 may rotate to the right whereas the second worm and worm wheel 135 and 136 rotate to the left.
- the fan 120 operates, the first and the second worm wheel 134 and 136 are rotated in the opposite directions.
- the eccentric cams 141 and 142 are disposed under the worm wheels 134 and 136 to convert a rotational motion of the worm wheels 134 and 136 to a straight motion, in cooperation with the cam grooves 153 and 156 formed in the wet-cloth boards 151 and 152 .
- the eccentric cams 141 and 142 are configured as a pin formed at a predetermined distance ‘e’ from rotational centers of worm wheel shafts 134 a and 136 a .
- the first and the second eccentric cams 141 and 142 of a pin shape are disposed under the first and the second worm wheels 134 and 136 , respectively.
- the wet-cloth boards 151 and 152 are mounted at a lower part of the brush body 100 and respectively have the cam grooves 153 and 156 for insertion of the eccentric cams 141 and 142 .
- the cam grooves 153 and 156 have a certain width for smooth insertion of the eccentric cams 141 and 142 and a certain length by which the eccentric cams 141 and 142 move. That is, the length of the cam grooves 153 and 156 determines a reciprocating distance of the wet-cloth boards 151 and 152 .
- Each of the cam grooves 153 and 156 of the wet-cloth boards 151 and 152 has guide projections 154 and 157 at one side thereof.
- the guide projections 154 and 157 are inserted in a guide groove 115 to restrict a movement of the wet-cloth boards 151 and 152 .
- the guide groove 115 is configured as a long groove formed at one side of the rotation supporting members 114 and 116 , which support the worm wheels 134 and 136 , on the brush body 110 .
- a pair of the guide grooves 115 are preferably disposed on both sides of the rotation supporting members 114 and 116 , respectively.
- the movement of the wet-cloth boards 151 and 152 is determined by relationships between the cam grooves 153 and 156 and the guide grooves 115 formed on the brush body 110 .
- the cam grooves 153 and 156 of the wet-cloth boards 151 and 152 are disposed perpendicularly to the rotation shafts 122 and 123 of the fan 120 whereas the guide grooves 115 of the brush body 110 are disposed parallel with the rotation shafts 122 and 123 of the fan 120 , with respect to a length direction of the grooves. That is, the cam grooves 153 and 156 of the wet-cloth boards 151 and 152 are perpendicularly disposed to the guide grooves 115 of the brush body 110 with respect to the length directions of the grooves.
- the wet-cloth brush 100 comprises a pair of the guide grooves 115 on both sides of the first and the second rotation supporting members 114 and 116 that support the first and the second worm wheels 134 and 136 of the brush body 110 , respectively, and a pair of the guide projections 154 and 157 on the wet-cloth boards 151 and 152 to correspond to the guide grooves 115 .
- the guide projections 154 and 157 have at an upper part thereof escape-prevention members 155 and 158 fixed by a fastening member such as a bolt, respectively, to restrain the wet-cloth boards 151 and 152 from escaping from the guide grooves 115 of the brush body 110 .
- a plain washer having a diameter greater than a width of the guide groove 115 may be used for the escape-prevention members 155 and 158 . Therefore, as the eccentric cams 141 and 142 are rotated by the worm wheels 134 and 136 , the wet-cloth boards 151 and 152 can linearly reciprocate through the cam grooves 153 and 156 inserted with the eccentric cams 141 and 142 and the guide projections 154 and 157 inserted in the guide grooves 115 , without being separated from the brush body 110 .
- a plurality of sticking seats 159 FIG. 3 ), such as velcro tape, are provided to attach the wet-cloth (not shown).
- first and the second wet-cloth boards 151 and 152 may be operated by the first and the second eccentric cams 141 and 142 independently, it is preferable that they are operated in association with each other. In order for reduction of the vibration, the wet-cloth boards 151 and 152 may be symmetrically operated. For example, if the first wet-cloth board 151 moves toward a center part of the brush body 110 , the second wet-cloth board 152 moves toward the center part, and if the first wet-cloth board 151 moves outward with respect to the brush body 110 , so does the second wet-cloth board 152 .
- first and the second wet-cloth boards 151 and 152 reciprocate in motions of gathering at the center part of the brush body 110 and separating to outer parts of the brush body 110 .
- first and the second worm wheels 134 and 136 are rotated in the opposite directions to each other.
- the first and the second eccentric cams 141 and 142 are disposed in the same direction, as shown in FIG. 6 .
- the first and the second wet-cloth boards 151 and 152 preferably have sloping edges 151 a and 152 a facing each other, respectively.
- the sloping edges 151 a and 152 a are formed by sharpening the wet-cloth boards 151 and 152 from bottom surfaces 151 c and 152 c directly attached with the wet-cloth toward upper surfaces 151 d and 152 d directly mounted to the brush body 110 .
- the wet-cloth boards 151 and 152 have a certain size for allowing the wet-cloth boards 151 and 152 to be partly exposed and shown by a user from above the brush body 110 . Therefore, the user can check the operation of the wet-cloth boards 151 and 152 while operating the vacuum cleaner.
- both comers 113 of a side of the brush body 110 are rounded while the first and the second wet-cloth boards 151 and 152 are substantially formed as a rectangle. Accordingly, one corner of the respective wet-cloth boards 151 and 152 can always be shown through the rounded comers 113 of the brush body 100 .
- flank sides 151 b and 152 b of the wet-cloth boards 151 and 152 are shown, protruding from the brush body 110 , when the both wet-cloth boards 151 and 152 are moved to the outermost limit, as shown in FIG. 8 .
- first and the second eccentric cams 141 and 142 integrally formed with a lower part of the worm wheels 134 and 136 are rotated at a certain distance from the rotational centers of the first and the second worm wheels 134 and 136 , as shown in FIG. 6 . Because the first worm and worm wheel 133 and 134 and the second worm and worm wheel 135 and 136 rotate in the opposite directions to each other, if the first worm wheel 134 rotates clockwise, for example, the second worm wheel 136 rotates counterclockwise.
- the first and the second eccentric cams 141 and 142 rotate, the first and the second wet-cloth boards 151 and 152 linearly reciprocate in a length direction of the brush body 110 by the cam grooves 153 and 156 inserted with the first and the second eccentric cams 141 and 142 and the guide projections 154 and 157 inserted in the guide grooves 115 of the brush body 110 .
- the first and the second eccentric cams 141 and 142 are symmetrically disposed and rotated in the opposite directions, as shown in FIG. 6 , the first and the second wet-cloth boards 151 and 152 also symmetrically reciprocate by rotation of the fan 120 .
- FIGS. 8A to 8 C show the operation of the first and the second wet-cloth boards 151 and 152 . More specifically, FIG. 8A shows the first and the second wet-cloth boards 151 and 152 as moved to the outermost limit by rotation of the first and the second eccentric cams 141 and 142 . FIG. 8B shows the wet-cloth boards 151 and 152 being gathering toward the center part of the brush body 110 , and FIG. 8C show the wet-cloth boards 151 and 152 as moved to the center part of the brush body 110 as much as possible.
- the vibration generated by the reciprocating motion of the wet-cloth boards 151 and 152 can be decreased and prevented from being transmitted up to the handle 222 ( FIG. 9 ) through the pipe 221 .
- the flank side 151 b and 152 b of the wet-cloth boards 151 and 152 are partly protruded from the brush body 110 when the wet-cloth boards 151 and 152 are moved to the outermost limit. Therefore, the user can easily check the operation of the wet-cloth boards 151 and 152 .
- first and the second wet-cloth boards 151 and 152 respectively have sloping sides 151 a and 152 a facing each other, as shown in FIG. 7 . Therefore, a finger or other stuff is not pinched by the wet-cloth boards 151 and 152 although the wet-cloth boards 151 and 152 are moved to the center part.
- FIG. 9 shows the operation of a vacuum cleaner applying the wet-cloth brush 100 according to an embodiment of the present invention.
- a vacuum cleaner 200 comprises a wet-cloth brush 110 for drawing in dust-laden air, the extension pipe 220 fluidly connecting the wet-cloth brush 100 with a cleaner body 230 , and the cleaner body 230 including a dust collecting chamber 235 and a motor chamber 231 .
- the wet-cloth brush 100 comprises the brush body 110 having the air inlet 111 for drawing in dust-laden air from a surface being cleaned, and a pair of wet-cloth boards 151 and 152 linearly reciprocating with respect to the brush body 110 . Since the structure of the wet-cloth brush 100 has been described above, detailed description thereof will be omitted.
- the extension pipe 220 comprises a pipe 221 removably attached with the wet-cloth brush 100 , the handle 222 for moving the wet-cloth brush 100 , and a flexible hose 223 fluidly connecting the handle 222 and the cleaner body 230 .
- the dust collecting chamber 235 includes a contaminant collecting unit (not shown) for separating and collecting dust from the dust-laden air drawn in through the wet-cloth brush 100 .
- the contaminant collecting unit may be implemented by any of a general dust bag and a cyclone dust collecting unit.
- the motor chamber 231 has a motor assembly 210 for generating the suction force for drawing in the dust-laden air through the wet-cloth brush 100 .
- the motor assembly 210 comprises a motor 211 , an impeller (not shown) rotated by the motor 211 , and a diffuser 212 for inducing the air drawn in by the impeller to the motor 211 .
- a power switch is turned on to rotate the motor 211 in the motor chamber 231 .
- the impeller mounted to a leading end of a motor shaft is rotated.
- the dust-laden air is drawn in through the air inlet 111 of the wet-cloth brush 100 .
- the drawn-in air flows along the air inducing path 112 in the brush body 100 , thereby rotating the fan 120 .
- the pair of wet-cloth boards 151 and 152 are symmetrically operated by the eccentric cams 141 and 142 , the cam grooves 153 and 156 , the guide grooves 115 and the guide projections 154 and 157 to linearly reciprocate (See FIG. 4 ).
- the surface being cleaned such as floor can be thoroughly wiped away by the wet-cloth (not shown) attached to the bottom surfaces 151 c and 152 c of the wet-cloth boards 151 and 152 .
- the user holding the handle 222 can view each of the one corner of the wet-cloth boards 151 and 152 from above the brush body 110 .
- the flank sides 151 b and 152 b are partly protruded from the brush body 110 when the wet-cloth boards 151 and 152 are moved to the outermost limit, the user can confirm whether the cleaning work is being performed right.
- the dust-laden air passed through the fan 120 is cleaned since the dust is separated therefrom.
- the cleaned air is passed through the motor 211 via the impeller and the diffuser 212 and discharged to the outside of the cleaner body 230 through an outlet 233 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
A wet-cloth brush for a vacuum cleaner, which generates minor vibration and enables a user to check the operation of a wet-cloth board, comprises a brush body, a fan mounted to the brush body to be rotated by drawn-in air, an eccentric cam mounted to the brush body and operated in association with a power transmitter that transmits a rotational power of the fan, and at least two wet-cloth boards separably mounted to the brush body to move along a locus of the eccentric cam.
Description
- This application claims benefit under 35 U.S.C. § 119(a) of Korean Patent Application No. 2004-110043, filed Dec. 22, 2004, the entire contents of which are incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a brush for a vacuum cleaner. More particularly, the present invention relates to a wet-cloth brush for a vacuum cleaner, embodied by attaching a wet-cloth to a brush.
- 2. Description of the Related Art
- When cleaning a place such as a room, it is general to use a vacuum cleaner first to remove dust and impurities and then use a wet cloth to wipe down. However, since such a two-step cleaning work is inconvenient for a user, a wet-cloth brush for a vacuum cleaner, which enables vacuuming and wiping simultaneously, has been introduced and spread.
-
FIG. 1 illustrates a conventional wet-cloth brush of a vacuum cleaner. - Referring to
FIG. 1 , the conventional wet-cloth brush 1 for a vacuum cleaner comprises abrush body 10, afan 20, apower transmitter 30, and a wet-cloth board 40. - The
brush body 10 has an air inducing path 11 for drawing in dust-laden air by a suction force generated in a cleaner body (not shown). Thefan 20 is mounted on the air inducing path 11 of thebrush body 10 to be rotated by the dust-laden air which is drawn in. Apinion gear 21 is mounted under thefan 20 to rotate in association with thefan 20. Thepower transmitter 30 comprises apulley gear 31, first andsecond belts first pulley 36 and a second pulley (not shown). - The
pulley gear 31 comprises agear part 32 meshed with thepinion gear 21 and first andsecond pulley parts gear part 32. Thefirst pulley 36 and the second pulley (not shown) are rotatably mounted to thebrush body 10 and have a protrusion (not shown) at a certain distance from a rotational center thereof, respectively. At an upper part of the wet-cloth board 40, recesses (not shown) are formed for insertion of the protrusions of thefirst pulley 36 and the second pulley. - The above-structured wet-
cloth brush 1 operates as follows. When the dust-laden air is drawn in by the suction force, thefan 20 mounted on the air inducing path 11 is rotated. By rotation of thefan 20, thepinion gear 21 disposed under thefan 20 is rotated. Therefore, thegear part 32 of thepulley gear 31 in mesh with thepinion gear 21 is rotated. When thepulley gear 31 rotates according to rotation of thegear part 32, thefirst pulley 36 and the second pulley are rotated, which are connected with the first and thesecond pulley parts pulley gear 31 through the first and thesecond belts first pulley 36 and the second pulley crank, and consequently, the wet-cloth board 40 engaged with the protrusions of the first and thesecond pulleys 36 crank. As a result, the wet-cloth attached to a lower surface of the wet-cloth board 40 wipes away a surface being cleaned, such as a floor. - In the conventional wet-
cloth brush 1, however, the wet-cloth board 40 reciprocates very fast, and such a fast motion increases noise and vibration. The vibration is transmitted up to a handle through an extension pipe 3 of the vacuum cleaner, thereby making the user uncomfortable. - In addition, since the wet-
cloth board 40 is not obviously seen during the operation, the user cannot instantly recognize whether the wet-cloth is working right. - An aspect of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present invention is to provide a wet-cloth brush for a vacuum cleaner, capable of reducing noise and vibration by decreasing a motional speed of a wet-cloth board and by providing a plurality of wet-cloth boards that symmetrically operate, and a vacuum cleaner having the same.
- Another aspect of the present invention is to provide a wet-cloth brush for a vacuum cleaner, enabling a user to instantly check the performance of the wet-cloth brush by making the wet-cloth in operation seen from above the wet-cloth brush, and a vacuum cleaner having the same.
- In order to achieve the above-described aspects of the present invention, there is provided a wet-cloth brush for a vacuum cleaner, comprising a brush body, a fan mounted to the brush body to be rotated by drawn-in air, a plurality of eccentric cams mounted to the brush body and operated in association with a power transmitter that transmits a rotational power of the fan, and at least two wet-cloth boards separably mounted to the brush body to move along a locus of the eccentric cam.
- The power transmitter comprises a plurality of worms mounted to rotation shafts protruded from opposite sides of the fan; and a plurality of worm wheels meshing with the worms having the eccentric cam at a lower end thereof, respectively.
- The worm wheels formed at both sides of the fan are rotated in the opposite directions other.
- The wet-cloth boards comprises a cam groove formed as a long groove for insertion of the eccentric cam; and a guide projection formed at one side of the cam groove and inserted in a guide formed as a long groove on the brush body.
- The two wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.
- The two wet-cloth boards respectively have a sloping edge on the sides facing each other.
- The wet-cloth boards are mounted to a lower part of the brush body to partly protrude from brush body.
- According to another aspect of the present invention, there is provided a vacuum performing wet-cleaning by drawing in dust-laden air through a wet-cloth brush, wherein cloth brush comprises a brush body; a fan mounted to the brush body to be rotated by the drawn-in air; first and second worms respectively mounted to rotation shafts formed on both sides of the fan; first and second worm wheels mounted in the brush body to mesh with the first and the second worms; first and second eccentric cams respectively mounted at a lower part of the first and the second worm wheels and deviated from rotational centers of the worm wheels; and first and second wet-cloth boards including a cam groove formed as a long groove for insertion of anyone of the first and the second eccentric cams, and a guide projection formed at one side of the cam groove and inserted in a guide groove formed as a long groove in the brush body.
- The first and the second wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.
- The first and the second wet-cloth boards respectively have a sloping edge on the sides facing each other.
- The first and the second wet-cloth boards are mounted to a lower part of the brush body to partly protrude from the brush body.
- According to the above described wet-cloth brush of a vacuum cleaner, the noise and vibration during the cleaning work can be reduced because the two wet-cloth board reciprocates oppositely to each other at a low speed.
- Furthermore, in the wet-cloth brush according to an embodiment of the present invention, the user can instantly recognize the operation of the wet-cloth because the wet-cloth boards are seen from above the wet-cloth brush.
- The above aspect and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawing figures, wherein;
-
FIG. 1 is a perspective view showing an example of a conventional wet-cloth brush for a vacuum cleaner; -
FIG. 2 is a perspective view of a wet-cloth brush for a vacuum cleaner according to an embodiment of the present invention; -
FIG. 3 is a bottom view of the wet-cloth brush ofFIG. 2 ; -
FIG. 4 is a partial, perspective view of the wet-cloth brush according to an embodiment of the present invention, for explaining the power transmission structure; -
FIG. 5 is an exploded, perspective view showing an eccentric cam, a guide groove and a cam groove of the wet-cloth brush according to an embodiment of the present invention; -
FIG. 6 is a view for illustrating an assembly structure of first and second eccentric cams of the wet-cloth brush according to an embodiment of the present invention; -
FIG. 7 is a view showing an exemplary wet-cloth board of the wet-cloth brush according to an embodiment of the present invention; -
FIGS. 8A to 8C are views for illustrating a reciprocating motion of two wet-cloth boards of a wet-cloth brush according to an embodiment of the present invention; and -
FIG. 9 is a perspective view of a vacuum cleaner comprising the wet-cloth brush according to an embodiment of the present invention. - Hereinafter, certain embodiments of the present invention will be described in detail with reference to the accompanying drawing figures.
- In the following description, same drawing reference numerals are used for the same elements even in different drawings. The matters defined in the description such as a detailed construction and elements are nothing but the ones provided to assist in a comprehensive understanding of the invention. Thus, it is apparent that the present invention can be carried out without those defined matters. Also, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
- Referring to FIGS. 2 to 4, a wet-
cloth brush 100 for a vacuum cleaner comprises abrush body 110, afan 120, apower transmitter 130,eccentric cams cloth boards - The
brush body 110 is detachably mounted to apipe 221 of an extension pipe. Thebrush body 110 has anair inducing path 112 along which a dust-laden air, being drawn in through anair inlet 111 disposed at a lower part thereof, flows toward thepipe 221. A cover (not shown) is attached at an upper part of thebrush body 110, thereby shielding thefan 120 and thepower transmitter 130 and forming theair inducing path 112. - The
fan 120 comprises ablade part 121, and first andsecond rotation shafts blade part 121. Thefan 120 is rotatably mounted in theair inducing path 112 of thebrush body 110 by the first and thesecond rotation shafts second rotation shafts ball bearings - The
power transmitter 130 consists of a worm and a worm wheel having a significant reduction gear ratio. The wet-cloth brush 100 of the present embodiment comprises first andsecond power transmitters second rotation shafts fan 120. Thefirst power transmitter 131 comprises afirst worm 133 mounted to thefirst rotation shaft 122 of thefan 120 and afirst worm wheel 134 meshed with thefirst worm 133 and rotated parallel with respect to thebrush body 110. Thesecond power transmitter 132 is disposed to correspond to thefirst power transmitter 131 with respect to thefan 120. Thesecond power transmitter 132 comprises asecond worm 135 mounted to thesecond rotation shaft 123 and asecond worm wheel 136 meshed with thesecond worm 135 and rotated parallel with respect to thebrush body 110. The first and thesecond worm wheels rotation supporting members brush body 110. The first worm andworm wheel worm wheel worm wheel worm wheel cloth boards worm wheel worm wheel worm wheel worm wheel fan 120 operates, the first and thesecond worm wheel - Referring to
FIGS. 5 and 6 , theeccentric cams worm wheels worm wheels cam grooves cloth boards eccentric cams worm wheel shafts eccentric cams second worm wheels - The wet-
cloth boards brush body 100 and respectively have thecam grooves eccentric cams cam grooves eccentric cams eccentric cams cam grooves cloth boards cam grooves cloth boards guide projections guide projections guide groove 115 to restrict a movement of the wet-cloth boards guide groove 115 is configured as a long groove formed at one side of therotation supporting members worm wheels brush body 110. For more stable movement of the wet-cloth boards guide grooves 115 are preferably disposed on both sides of therotation supporting members cloth boards cam grooves guide grooves 115 formed on thebrush body 110. According to the wet-cloth brush 100 of the present embodiment, as shown inFIG. 5 , thecam grooves cloth boards rotation shafts fan 120 whereas theguide grooves 115 of thebrush body 110 are disposed parallel with therotation shafts fan 120, with respect to a length direction of the grooves. That is, thecam grooves cloth boards guide grooves 115 of thebrush body 110 with respect to the length directions of the grooves. Also, the wet-cloth brush 100 comprises a pair of theguide grooves 115 on both sides of the first and the secondrotation supporting members second worm wheels brush body 110, respectively, and a pair of theguide projections cloth boards guide grooves 115. Theguide projections prevention members cloth boards guide grooves 115 of thebrush body 110. A plain washer having a diameter greater than a width of theguide groove 115 may be used for the escape-prevention members eccentric cams worm wheels cloth boards cam grooves eccentric cams guide projections guide grooves 115, without being separated from thebrush body 110. On the other side of the wet-cloth boards cam grooves guide projections FIG. 3 ), such as velcro tape, are provided to attach the wet-cloth (not shown). - Although the first and the second wet-
cloth boards eccentric cams cloth boards cloth board 151 moves toward a center part of thebrush body 110, the second wet-cloth board 152 moves toward the center part, and if the first wet-cloth board 151 moves outward with respect to thebrush body 110, so does the second wet-cloth board 152. In other words, the first and the second wet-cloth boards brush body 110 and separating to outer parts of thebrush body 110. To this end, the first and thesecond worm wheels eccentric cams FIG. 6 . - However, in the above-operated wet-
cloth brush 100, a finger or any other stuff may be pinched by the first and the second wet-cloth boards cloth boards edges 151 a and 152 a facing each other, respectively. In greater detail, the slopingedges 151 a and 152 a are formed by sharpening the wet-cloth boards bottom surfaces upper surfaces brush body 110. - Furthermore, the wet-
cloth boards cloth boards brush body 110. Therefore, the user can check the operation of the wet-cloth boards comers 113 of a side of thebrush body 110, the side connected to thepipe 221, are rounded while the first and the second wet-cloth boards cloth boards rounded comers 113 of thebrush body 100. Additionally, it is preferable that flank sides 151 b and 152 b of the wet-cloth boards brush body 110, when the both wet-cloth boards FIG. 8 . - Hereinbelow, the operation of the wet-cloth brush for a vacuum cleaner will be described in reference to FIGS. 2 thorugh 8.
- When a suction force is generated by a motor mounted in a cleaner body (not shown), dust-laden air is drawn in through the
air inlet 111 formed in thebrush body 110. While passing through theair inducing path 112, the drawn-in air rotates thefan 120 which is supported on theair inducing path 112 with both sides thereof by theball bearings fan 120 rotates, the first and thesecond worms rotation shafts second worm wheels second worms eccentric cams worm wheels second worm wheels FIG. 6 . Because the first worm andworm wheel worm wheel first worm wheel 134 rotates clockwise, for example, thesecond worm wheel 136 rotates counterclockwise. - As the first and the second
eccentric cams cloth boards brush body 110 by thecam grooves eccentric cams guide projections guide grooves 115 of thebrush body 110. Here, since the first and the secondeccentric cams FIG. 6 , the first and the second wet-cloth boards fan 120. -
FIGS. 8A to 8C show the operation of the first and the second wet-cloth boards FIG. 8A shows the first and the second wet-cloth boards eccentric cams FIG. 8B shows the wet-cloth boards brush body 110, andFIG. 8C show the wet-cloth boards brush body 110 as much as possible. By the symmetrical movement of the first and the second wet-cloth boards cloth boards FIG. 9 ) through thepipe 221. - In addition, as shown in
FIG. 8A , theflank side cloth boards brush body 110 when the wet-cloth boards cloth boards - Moreover, the first and the second wet-
cloth boards sides 151 a and 152 a facing each other, as shown inFIG. 7 . Therefore, a finger or other stuff is not pinched by the wet-cloth boards cloth boards -
FIG. 9 shows the operation of a vacuum cleaner applying the wet-cloth brush 100 according to an embodiment of the present invention. - Referring to
FIG. 9 , avacuum cleaner 200 according to an embodiment of the present invention, comprises a wet-cloth brush 110 for drawing in dust-laden air, theextension pipe 220 fluidly connecting the wet-cloth brush 100 with acleaner body 230, and thecleaner body 230 including adust collecting chamber 235 and amotor chamber 231. - Referring to
FIGS. 2 and 3 , the wet-cloth brush 100 comprises thebrush body 110 having theair inlet 111 for drawing in dust-laden air from a surface being cleaned, and a pair of wet-cloth boards brush body 110. Since the structure of the wet-cloth brush 100 has been described above, detailed description thereof will be omitted. Theextension pipe 220 comprises apipe 221 removably attached with the wet-cloth brush 100, thehandle 222 for moving the wet-cloth brush 100, and aflexible hose 223 fluidly connecting thehandle 222 and thecleaner body 230. Thedust collecting chamber 235 includes a contaminant collecting unit (not shown) for separating and collecting dust from the dust-laden air drawn in through the wet-cloth brush 100. The contaminant collecting unit may be implemented by any of a general dust bag and a cyclone dust collecting unit. Themotor chamber 231 has amotor assembly 210 for generating the suction force for drawing in the dust-laden air through the wet-cloth brush 100. Themotor assembly 210 comprises amotor 211, an impeller (not shown) rotated by themotor 211, and adiffuser 212 for inducing the air drawn in by the impeller to themotor 211. - When cleaning a place using the
vacuum cleaner 200 according to an embodiment of the present invention, a power switch is turned on to rotate themotor 211 in themotor chamber 231. As themotor 211 rotates, the impeller mounted to a leading end of a motor shaft is rotated. By this, the dust-laden air is drawn in through theair inlet 111 of the wet-cloth brush 100. - The drawn-in air flows along the
air inducing path 112 in thebrush body 100, thereby rotating thefan 120. According to rotation of thefan 120, the pair of wet-cloth boards eccentric cams cam grooves guide grooves 115 and theguide projections FIG. 4 ). As a result, the surface being cleaned such as floor can be thoroughly wiped away by the wet-cloth (not shown) attached to the bottom surfaces 151 c and 152 c of the wet-cloth boards handle 222 can view each of the one corner of the wet-cloth boards brush body 110. In addition, since the flank sides 151 b and 152 b are partly protruded from thebrush body 110 when the wet-cloth boards dust collecting chamber 235, the dust-laden air passed through thefan 120 is cleaned since the dust is separated therefrom. The cleaned air is passed through themotor 211 via the impeller and thediffuser 212 and discharged to the outside of thecleaner body 230 through anoutlet 233. - While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A wet-cloth brush for a vacuum cleaner, comprising:
a brush body;
a fan mounted to the brush body to be rotated by drawn-in air;
a plurality of eccentric cams mounted to the brush body and operated in association with a power transmitter that transmits a rotational power of the fan; and
at least two wet-cloth boards mounted to the brush body to move along a locus of the eccentric cam.
2. The wet-cloth brush of claim 1 , wherein the power transmitter comprises:
a plurality of worms mounted to a rotation shaft protruded from opposite sides of the fan; and
a plurality of worm wheels meshing with the worms and having the eccentric cam at a lower end thereof, respectively.
3. The wet-cloth brush of claim 2 , wherein the worm wheels formed at both sides of the fan are rotated in the opposite directions to each other.
4. The wet-cloth brush of claim 1 , wherein the wet-cloth boards comprises:
a cam groove formed as a long groove for insertion of the eccentric cam; and
a guide projection formed at one side of the cam groove and inserted in a guide groove formed as a long groove on the brush body.
5. The wet-cloth brush of claim 4 , wherein the two wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.
6. The wet-cloth brush of claim 5 , wherein the two wet-cloth boards respectively have a sloping edge on the sides facing each other.
7. The wet-cloth brush of claim 1 , wherein the wet-cloth boards are mounted to a lower part of the brush body to partly protrude from the brush body.
8. A vacuum cleaner performing wet-cleaning by drawing in dust-laden air through a wet-cloth brush, wherein the wet-cloth brush comprises:
a brush body;
a fan mounted to the brush body to be rotated by the drawn-in air;
first and second worms respectively mounted to rotation shafts formed on both sides of the fan;
first and second worm wheels mounted in the brush body to mesh with the first and the second worms;
first and second eccentric cams respectively mounted at a lower part of the first and the second worm wheels and deviated from rotational centers of the worm wheels; and
first and second wet-cloth boards including a cam groove formed as a long groove for insertion of anyone of the first and the second eccentric cams, and a guide projection formed at one side of the cam groove and inserted in a guide groove formed as a long groove in the brush body.
9. The vacuum cleaner of claim 8 , wherein the first and the second wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.
10. The vacuum cleaner of claim 8 , wherein the first and the second wet-cloth boards respectively have a sloping edge on the sides facing each other.
11. The vacuum cleaner of claim 8 , wherein the first and the second wet-cloth boards are mounted to a lower part of the brush body to partly protrude from the brush body.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2004-110043 | 2004-12-22 | ||
KR1020040110043A KR100611015B1 (en) | 2004-12-22 | 2004-12-22 | Mop brush for vacuum cleaner and vacuum cleaner having the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060130272A1 true US20060130272A1 (en) | 2006-06-22 |
Family
ID=36087603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/183,971 Abandoned US20060130272A1 (en) | 2004-12-22 | 2005-07-19 | Wet-cloth brush for vacuum cleaner and a vacuum cleaner having the same |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060130272A1 (en) |
EP (1) | EP1674013A1 (en) |
JP (1) | JP2006175201A (en) |
KR (1) | KR100611015B1 (en) |
CN (1) | CN100341452C (en) |
AU (1) | AU2005204284B2 (en) |
RU (1) | RU2309656C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070283522A1 (en) * | 2006-06-12 | 2007-12-13 | Samsung Gwangiu Electronics Co., Ltd. | Brush apparatus for a vacuum cleaner |
US20090169435A1 (en) * | 2007-12-28 | 2009-07-02 | Environmental Quality Management, Inc. | Apparatus and method for sampling of airborne asbestos and other particles released from a surface |
WO2016036183A1 (en) * | 2014-09-05 | 2016-03-10 | 에브리봇 주식회사 | Wet cleaning apparatus, robot cleaner and control method therefor |
Families Citing this family (13)
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KR100841444B1 (en) * | 2007-01-24 | 2008-06-25 | 삼성광주전자 주식회사 | A suction nozzle having a brush function and a duster function for use in a vacuum cleaner |
JP5242179B2 (en) * | 2008-01-21 | 2013-07-24 | 株式会社東芝 | Vacuum cleaner inlet and vacuum cleaner |
KR101362087B1 (en) * | 2011-12-30 | 2014-02-12 | 한경희 | base assembly for floor cleaner |
WO2013165033A1 (en) * | 2012-04-30 | 2013-11-07 | (주)월드생활가전 | Vacuum cleaner |
KR101490267B1 (en) * | 2013-04-04 | 2015-02-05 | 엘지전자 주식회사 | vacuum cleaner |
CN104224046A (en) * | 2013-06-24 | 2014-12-24 | 乐金电子(天津)电器有限公司 | Vacuum cleaner |
KR101565888B1 (en) | 2013-08-05 | 2015-11-16 | 최귀석 | Floor cleaner capable of collecting wasted liquid |
US11272822B2 (en) | 2013-11-12 | 2022-03-15 | Irobot Corporation | Mobile floor cleaning robot with pad holder |
AU2014348883C1 (en) * | 2013-11-12 | 2017-11-09 | Irobot Corporation | Cleaning pad |
KR101613088B1 (en) * | 2014-10-17 | 2016-04-19 | 최귀석 | Floor and vaccume cleaner capable of collecting wasted liquid |
JP6877089B2 (en) * | 2016-02-17 | 2021-05-26 | 日立グローバルライフソリューションズ株式会社 | Vacuum cleaner |
EP4042919B1 (en) * | 2021-02-10 | 2023-08-09 | Yunjing Intelligence Innovation (Shenzhen) Co., Ltd. | Cleaning assembly and cleaning robot |
CN112869648A (en) | 2021-02-10 | 2021-06-01 | 云鲸智能科技(东莞)有限公司 | Cleaning assembly and cleaning robot |
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- 2005-07-19 US US11/183,971 patent/US20060130272A1/en not_active Abandoned
- 2005-08-04 CN CNB2005100895794A patent/CN100341452C/en not_active Expired - Fee Related
- 2005-08-12 RU RU2005126394/12A patent/RU2309656C2/en not_active IP Right Cessation
- 2005-08-16 EP EP05356138A patent/EP1674013A1/en not_active Withdrawn
- 2005-08-26 AU AU2005204284A patent/AU2005204284B2/en not_active Ceased
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US20090169435A1 (en) * | 2007-12-28 | 2009-07-02 | Environmental Quality Management, Inc. | Apparatus and method for sampling of airborne asbestos and other particles released from a surface |
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WO2016036183A1 (en) * | 2014-09-05 | 2016-03-10 | 에브리봇 주식회사 | Wet cleaning apparatus, robot cleaner and control method therefor |
Also Published As
Publication number | Publication date |
---|---|
RU2309656C2 (en) | 2007-11-10 |
CN1792309A (en) | 2006-06-28 |
JP2006175201A (en) | 2006-07-06 |
KR20060072191A (en) | 2006-06-28 |
EP1674013A1 (en) | 2006-06-28 |
AU2005204284A1 (en) | 2006-07-06 |
KR100611015B1 (en) | 2006-08-10 |
AU2005204284B2 (en) | 2008-03-06 |
RU2005126394A (en) | 2007-02-27 |
CN100341452C (en) | 2007-10-10 |
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Legal Events
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Owner name: SAMSUNG GWANGJU ELECTRONICS CO., LTD., KOREA, REPU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OH, JANG-KEUN;LIM, SOON-TACK;REEL/FRAME:016789/0206 Effective date: 20050708 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |