US20200060495A1 - Floor cleaner - Google Patents
Floor cleaner Download PDFInfo
- Publication number
- US20200060495A1 US20200060495A1 US16/551,501 US201916551501A US2020060495A1 US 20200060495 A1 US20200060495 A1 US 20200060495A1 US 201916551501 A US201916551501 A US 201916551501A US 2020060495 A1 US2020060495 A1 US 2020060495A1
- Authority
- US
- United States
- Prior art keywords
- brushroll
- base
- squeegee
- floor cleaner
- cover
- 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
- A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
- A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
- A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction 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
- 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
- A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
- A47L9/0466—Rotating tools
- A47L9/0477—Rolls
-
- 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
- A47L11/4002—Installations of electric equipment
- A47L11/4005—Arrangements of batteries or cells; Electric power supply arrangements
-
- 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
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
- A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
-
- 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
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4044—Vacuuming or pick-up tools; Squeegees
-
- 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
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing 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
- A47L11/40—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
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4088—Supply pumps; Spraying devices; Supply conduits
-
- 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
-
- 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
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
Definitions
- the present disclosure relates to floor cleaners.
- a floor cleaner in one embodiment, includes a supply tank configured to store a cleaning fluid and a distribution nozzle in fluid communication with the supply tank.
- the distribution nozzle is configured to dispense the cleaning fluid onto a surface to be cleaned.
- the floor cleaner further includes a vacuum source and a base movable over the surface to be cleaned.
- the base includes a front side, a back side opposite the front side, and a lower end configured to be adjacent the surface to be cleaned.
- the base further includes a brushroll rotatable about a brushroll axis.
- the base further includes a suction inlet adjacent the brushroll and adjacent the lower end of the base and in fluid communication with the vacuum source.
- the base further includes a first squeegee that extends from the lower end between the suction inlet and the back side of the base, the first squeegee configured to contact the surface to be cleaned.
- the base further includes a second squeegee that contacts the brushroll and a third squeegee that extends from the lower end of the base rearward of the first squeegee, the third squeegee configured to contact the surface to be cleaned.
- FIG. 1 is a perspective view of a floor cleaner according to one embodiment.
- FIG. 2 is a side view of the floor cleaner of FIG. 1 .
- FIG. 3 is a rear perspective view of the floor cleaner of FIG. 1 .
- FIG. 4 is a cross-sectional view of the floor cleaner of FIG. 1 .
- FIG. 5 is a partial view of the floor cleaner of FIG. 1 illustrated a recovery tank removed from the floor cleaner.
- FIG. 6 is an alternative partial view of the floor cleaner of FIG. 1 illustrating the recovery tank removed.
- FIG. 7 is a perspective view of the recovery tank of the floor cleaner of FIG. 1 .
- FIG. 8 is a perspective view of the recovery tank of FIG. 7 with a filter removed.
- FIG. 9 is a cross-sectional view of the recovery tank of FIG. 7 .
- FIG. 10 is a partially exploded view of the recovery tank of FIG. 7 .
- FIG. 10A is an alternative cross-sectional view of the recovery tank of FIG. 7 .
- FIG. 11 is a partial cross-sectional view of the recovery tank of FIG. 7 .
- FIG. 12 is a perspective view of a portion of the floor cleaner of FIG. 1 with a portion of a base cover removed.
- FIG. 13 is an alternative perspective view of FIG. 12 .
- FIG. 14 is a perspective view of a portion of the floor cleaner of FIG. 1 .
- FIG. 15 is a perspective view of the portion of the floor cleaner of FIG. 1 with a brushroll cover removed
- FIG. 16 is a perspective view of the underside of the base of the floor cleaner of FIG. 1
- FIG. 17 is a cross-sectional view of the base of the floor cleaner of FIG. 1
- FIG. 17A is a cross-sectional view of a base of a floor cleaner according to another embodiment.
- FIG. 18 is a perspective view of a portion of the floor cleaner of FIG. 1 with the brushroll cover attached to the base.
- FIG. 19 is an alternative perspective view of the portion of the floor cleaner of FIG. 18 with the brushroll cover removed from the base.
- FIG. 20 is a cross-sectional view of the base of the floor cleaner of FIG. 1 .
- FIG. 21 is a perspective view of the base of the floor cleaner of FIG. 1 with the brushroll cover attached to the base.
- FIG. 22 illustrates an embodiment of a brushroll for use in floor cleaner of FIG. 1 .
- FIG. 23 is a cross-sectional view of a base of a floor cleaner according to another embodiment.
- FIG. 24 is an alternative cross-sectional view of the base of FIG. 23 .
- FIG. 25 is an alternative cross-sectional view of the base of FIG. 23 with a brushroll removed.
- FIG. 26 is an alternative cross-sectional view of the base of FIG. 23 with the brushroll removed.
- FIG. 27 is a perspective view of a base of a floor cleaner according to another embodiment.
- FIG. 28 is a perspective view of the base of FIG. 27 with a cover removed.
- FIG. 29 is a cross-sectional view of the base of FIG. 27 taken along line 29 - 29 of FIG.
- FIG. 30 is a cross-sectional view of the cover of the base taken along line 30 - 30 of FIG. 28 .
- FIG. 31 is the cross-sectional view of FIG. 29 but with the cover removed.
- FIG. 1 illustrates a floor cleaner 10 .
- the floor cleaner 10 includes a base 12 and a body 14 pivotally coupled to the base 12 .
- the body 14 is pivotal relative the base 12 about a first axis 160 ( FIG. 3 ) between an upright storage position ( FIG. 1 ) and an inclined operating position.
- the floor cleaner 10 further includes a supply tank 16 , a recovery tank 18 , and a vacuum source 20 .
- the supply tank 16 is configured to store a cleaning fluid and the floor cleaner 10 is operable to dispense the cleaning fluid onto a surface 22 to be cleaned.
- the vacuum source 20 includes a motor 24 and a fan 26 .
- the motor 24 and the fan 26 are operable to draw the cleaning fluid from the surface 22 into the recovery tank 18 .
- the base 12 is movable over the surface 22 to be cleaned.
- the base 12 includes wheels 28 to facilitate moving the base 12 over the surface 22 .
- the base 12 includes a suction inlet 30 in fluid communication with the vacuum source 20 and the recovery tank 18 .
- the cleaning fluid is drawn from the surface 22 through the suction inlet 30 and into the recovery tank 18 .
- the base 12 further includes a distribution nozzle 32 in fluid communication with the supply tank 16 . The distribution nozzle 32 dispenses the cleaning fluid toward the surface 22 .
- the floor cleaner 10 further includes a handle 34 .
- the handle 34 includes a grip 36 and an actuator 38 adjacent the grip 36 .
- the grip 36 is grabbed by the user to move the floor cleaner 10 along the surface 22 and to pivot the body 14 relative to the base 12 .
- the actuator 38 controls the flow of cleaning fluid from the supply tank 16 through the distribution nozzle 32 .
- the handle 34 further includes an extension 40 that extends from the body 14 .
- the extension 40 includes a first end 42 , a second end 44 , and a handle axis 46 that extends centrally through the first end 42 and the second end 44 as illustrated in FIG. 4 .
- the first end 42 is coupled to and adjacent the body 14 .
- the second end 44 is adjacent the grip 36 .
- the floor cleaner 10 further includes a battery 48 ( FIG. 4 ) that provides power to the vacuum source 20 .
- the battery 48 is a rechargeable lithium-ion battery in one embodiment.
- the floor cleaner 10 further includes an upper end 50 and a lower end 52 opposite the upper end 50 .
- the handle 34 is adjacent the upper end 50 and the base 12 is adjacent the lower end 52 .
- the floor cleaner 10 further include a front side 54 and a back side 56 opposite the front side 54 .
- the suction inlet 30 is adjacent the front side 54 .
- the relative positions of the components of the floor cleaner 10 will be discussed below. It has been found that the disclosed relative positioning of the components provides the floor cleaner 10 that is well balanced and comfortable for the operator to control while the floor cleaner 10 is moved along the surface 22 .
- the floor cleaner 10 has a center of gravity 58 .
- the floor cleaner 10 has a center of gravity 60 .
- the floor cleaner 10 has a center of gravity 62 .
- the center of gravities 58 , 60 , 62 are located behind the handle axis 46 and generally along a center of gravity axis 64 that is behind the handle axis 46 and extending through the body 14 .
- the body 14 is coupled to the base 12 along a steering axle 72 forming a second axis 166 about which the body 14 is rotatable by the user holding the hand grip about a steering axis extending from the grip 36 to the steering axle 72 .
- the center of gravity axis 64 is along or rearward of the steering axis as further discussed below.
- the center of gravity configurations discussed above are achieved by arranging the components as follows.
- the vacuum source 20 has a center of gravity 66 .
- the motor 24 of the vacuum source 20 is between the recovery tank 18 and the battery 48 in a direction from the lower end 52 to the upper end 50 .
- the handle 34 and the extension 40 are adjacent the front side 54 .
- the battery 48 has a center of gravity 68 and the battery 48 is adjacent the back side 56 .
- the battery 48 is between the back side 56 and the handle axis 46 in a direction from the front side 54 to the back side 56 .
- the battery 48 is also between the supply tank 16 and the front side 54 in a direction from the front side 54 to the back side 56 .
- the battery 48 is also between the supply tank 16 and the motor 24 in a direction from the front side 54 to the back side 56 .
- the battery 48 is also between the motor 24 and the upper end 50 in the direction from the lower end 52 to the upper end 50 .
- the battery 48 is also closer to the upper end 50 than the recovery tank 18 and the supply tank 16 in a direction from the upper end 50 to the lower end 52 .
- the battery 48 is also between the upper end 50 and the supply tank 16 in a direction from the upper end 50 to the lower end 52 .
- the battery 48 is stored in a battery chamber 47 , the battery chamber 47 having an opening through which the battery 48 may be removed or replaced within the battery chamber 47 .
- a battery door 49 is coupled to an edge of the opening of the battery chamber 47 , the battery door 49 being configured to cover and provide access to an interior of the battery chamber 47 .
- the battery door 49 is pivotably coupled about an edge of the opening by a hinge 51 and configured to pivot between a closed position and an open position providing access to an interior of the battery chamber 47 .
- the battery door 49 pivots open in a direction toward the back side 56 of the floor cleaner 10 upon being opened by a user.
- the battery door 49 may be spring-loaded, wherein the battery door 49 automatically pivots toward the closed position upon being released from an opened position by a user.
- the battery 48 moves into and out of the battery chamber 47 in a direction along the handle axis 46 when the battery door 49 is open.
- the handle axis 46 is positioned generally upright when the floor cleaner 10 is in the upright storage position ( FIG. 2 ). By positioning the battery 48 upright within the battery chamber 47 while the floor cleaner 10 is in an upright storage position, replacement of the battery 48 into the battery chamber 47 may be gravity-assisted.
- the locations of the battery 48 and supply tank 16 shown in FIG. 4 are exchanged such that the supply tank 16 is between the battery 48 and the front side 54 in a direction from the front side 54 to the back side 56 and the supply tank 16 is also between the battery 48 and the motor 24 in a direction from the front side 54 to the back side 56 .
- the supply tank 16 has a center of gravity 70 when full.
- the supply tank 16 is adjacent the back side 56 and the supply tank 16 defines a portion of the back side 56 .
- the supply tank 16 is between the back side 56 and the battery 48 in the direction from the front side 54 to the back side 56 .
- the recovery tank 18 is adjacent the front side 54 and the recovery tank 18 forms a portion of the front side 54 .
- the handle axis 46 extends through the recovery tank 18 .
- the recovery tank 18 is between the lower end 52 and the supply tank 16 in the direction from the upper end 50 to the lower end 52 .
- the recovery tank 18 includes a tank body 74 and a cover 76 coupled to the tank body 74 .
- the tank body 74 has a lower end wall 78 and a sidewall 80 that extends upwardly from the lower end wall 78 to an open upper end 82 of the tank body 74 .
- the lower end wall 78 includes an inlet aperture 84 and an inlet duct 86 that extends upwardly from the lower end wall 78 .
- the inlet duct 86 includes an outlet 88 at an end of the duct 86 opposite the inlet aperture 84 . Air and fluid enter the recovery tank 18 through the inlet duct 86 and through the outlet 88 of the inlet duct 86 .
- the inlet duct 86 decreases in diameter in a direction extending upwardly from the lower end wall, wherein the diameter of the inlet aperture 84 is greater than the diameter of the outlet 88 .
- the cover 76 is removably coupled to the open upper end 82 of the tank body 74 to close the open upper end 82 of the tank body 74 .
- the cover 76 is removable for emptying the tank body 74 when full.
- the cover 76 includes a lid seal 79 around the perimeter of the cover between the sidewall 80 and the cover 76 .
- the lid seal 79 is positioned offset from the upper end 82 toward the lower end wall 78 a desired distance providing sealing engagement for a distance 81 of the travel of the cover 76 lifting from the open upper end 82 of the tank body 74 .
- the cover 76 includes a baffle 90 that surrounds the outlet aperture 88 of the inlet duct 86 .
- the baffle 90 includes one or more arcuate redirecting surfaces 93 configured to turn the air and fluid from the outlet 88 of the inlet duct 86 toward the lower end wall 78 . More specifically, redirecting the airflow from an upwardly directed flow along the inlet duct 86 to a downwardly directed flow toward the lower end wall 78 and/or sidewalls 80 .
- the baffle includes two arcuate redirecting surfaces 93 , dividing the airflow from the outlet aperture 88 and redirecting the divided airflows to downwardly directed flows toward the lower end wall 78 and/or sidewalls 80 .
- the arcuate redirecting surface 93 has an arc angle 95 greater than 120 degrees.
- the arcuate redirecting surface 93 has an arc angle 95 greater than 150 degrees.
- the baffle 90 facilitates separation of the fluid from the suction airflow and directs the fluid down toward the lower end wall 78 of the tank body. In the illustrated embodiment, the baffle 90 extends in a direction toward the lower end wall 78 past or overlapping the outlet 88 and surrounding a portion of the inlet duct 86 .
- the cover 76 also includes a suction air outlet 92 in fluid communication with the vacuum source 20 . Air exits the recovery tank 18 through the air outlet 92 . The baffle 90 inhibits cleaning fluid from traveling directly into the suction air outlet 92 .
- the cover 76 further includes a cage 94 that surrounds the suction air outlet 92 .
- the cage 94 includes side apertures 96 and a bottom aperture 98 .
- a lip 100 surrounds the bottom aperture 98 .
- the side apertures 96 may include a screen(s) 101 ( FIG. 10 ) that filters the suction air flow before the suction airflow passes through the suction air outlet 92 .
- the screen 101 includes screen openings providing an open area between 35% and 60% open. In one embodiment, the screen openings provide an open area between 40% and 45% open.
- the cage 94 is releasably coupled to the cover 76 such as by a quarter-turn lock, hinge, or other latching arrangement to allow a user to open or remove the cage 94 for cleaning or maintenance.
- the cover 76 further includes a filter aperture 102 in fluid communication with the vacuum source 20 and downstream from the suction air outlet 92 .
- a filter 104 is received in the filter aperture 102 to filter the suction airflow before passing through the vacuum source 20 .
- the filter includes a frame 106 and filter media 108 .
- the frame 106 includes a tab 110 that is pulled upwardly to remove the filter 104 from the filter aperture 102 for replacement or for emptying the recovery tank 18 .
- the frame 106 includes sidewalls 112 that are received in the filter aperture 102 .
- the sidewalls 112 of the filter 104 are angled away from sidewalls 114 of the filter aperture 102 , i.e., the sidewalls 112 are chamfered such that the length of the filter on the upstream side is shorter than the length of the filter on the downstream side.
- the relative angle between the walls 112 , 114 inhibits binding of the filter 104 in the filter aperture 102 and allows for pivoting of the filter 104 within the filter aperture 102 when the filter 104 is removed by a user pulling only the single tab 110 using one hand.
- the sidewalls 112 of the filter 104 are not perpendicular to the plane of the filter, instead are angled inwardly toward the filter media 108 .
- the filter media 108 can include any suitable filter media (e.g., paper or other cellulosic media).
- the filter media 108 is pleated and includes a water repellant or resistant coating.
- the recovery tank 18 further includes a shutoff float 116 .
- the shutoff float 116 includes a float body 118 , a closure 120 , and an extension 122 that extends between the closure 120 and the float body 118 to space the closure 120 from the float body 118 . Therefore, the closure 120 is positioned further from the surface of the fluid in the recovery tank 18 and the fluid is less likely to be drawn through the suction air outlet 92 .
- the float body 118 floats on the surface of the fluid in the recovery tank 18 and the closure 120 is raised until the closure 120 is received in the suction air outlet 92 to close the suction air outlet 92 when the surface of the liquid exceeds a desired level.
- the float body 118 includes an aperture 124 extending through the float body 118 .
- the inlet duct 86 extends through the aperture 124 of the float body 118 such that the float body 118 surrounds at least a portion of the inlet duct 86 so that the inlet duct 86 guides movement of the shutoff float 116 as the closure 120 travels toward and away from the suction air outlet 92 along the inlet duct.
- the float body 118 also includes a chamfered bottom surface 126 configured to float on the surface of the fluid in the recovery tank 18 . The angle of the chamfered bottom surface 126 is approximately the angle of the body 14 relative to the surface 22 when the body 14 is in an inclined operating position.
- the chamfered bottom surface 126 is approximately parallel to and in contact with the surface of the fluid in the recovery tank 18 when the handle is in a selected inclined operating position.
- the shutoff float 116 moves between a lowermost position where the closure 120 is distanced from the suction airflow outlet 92 and a uppermost position where the closure 120 closes the suction airflow outlet 92 .
- the lip 100 of the cage 94 contacts and retains the closure 120 to limit downward movement of the shutoff float 116 to the lowermost position.
- the recovery tank 18 further includes a strainer 128 .
- the strainer 128 is positioned inside the tank body 74 and the strainer 128 moves relative to the tank body 74 from a lowermost position ( FIG. 11 ) to a removed position outside the tank body 74 through the open upper end 82 of the tank body 74 .
- the strainer 128 is used to strain debris from the fluid in the tank body 74 .
- the strainer 128 includes a perforated body 130 and a handle 132 that extends from the perforated body 130 .
- the handle 132 includes a grip portion 133 adjacent the open upper end 82 for accessibility when the cover 76 is removed from the recovery tank.
- the baffle 90 extends past the outlet 88 of the inlet duct 86 to direct entering fluid toward the lower end wall 78 and away from the handle 132 of the strainer. More specifically, the baffle 90 includes a rear wall 91 positioned to inhibit splashing of water against the grip portion 133 of the handle 132 to keep the grip portion relatively clean. In an alternative embodiment, a portion of the baffle 90 proximate the handle 132 extends farther toward the lower end wall 78 than the remaining portions of the baffle 90 to redirect fluid away from the handle 132 .
- the tank body 74 includes a strainer lip 134 . As shown in FIG. 11 , when the strainer 128 is in the lowermost position, the perforated body 130 contacts the lip 134 to space the perforated body 130 from the lower end wall 78 of the tank body 74 to define a gap 136 between the perforated body 130 and the lower end wall 78 . Also when the strainer 128 is in the lowermost position, the handle 132 of the strainer 134 is between the inlet duct 86 and the sidewall 80 of the tank body 74 and the perforated body 130 is not parallel to the lower end wall 78 .
- the perforated body 130 includes an aperture 137 and the inlet duct 86 extends through the aperture 137 to position the strainer 128 in the tank body 74 .
- the aperture 137 is sized and/or shaped to engage an outer surface of the inlet duct 86 in the installed position of the strainer in frictional engagement, retaining the strainer 134 onto the inlet duct 86 when the recovery tank 18 is inverted.
- the aperture 137 includes one or more protrusions 139 configured to frictionally engage the outer surface of the inlet duct 86 holding the strainer 128 in place at a diameter of the inlet duct 86 corresponding to the installed position of the strainer.
- the strainer may be retained with a frictional fit or by coupling engagement between the inlet duct and the strainer.
- the recovery tank 18 includes a tank handle 77 on the front side 54 ( FIG. 6 ) configured for supporting and lifting the recovery tank 18 and optionally for use in lifting the floor cleaner 10 .
- the tank handle 77 is inset in the front side 54 of the recovery tank 18 to provide a smooth form to the front side 54 of floor cleaner 10 , wherein forward space is conserved by not having the tank handle 77 extend out from the front side 54 .
- the body 14 includes a recovery tank recess 138 that receives the recovery tank 18 when the recovery tank 18 is coupled to the body 14 .
- the tank recess 138 includes an inlet 140 in a lower portion 141 of the tank recess 138 and an outlet 142 in an upper portion 143 of the tank recess 138 .
- the inlet 140 is in fluid communication with the suction inlet 30 and generally mates with the recovery tank inlet aperture 84 delivering cleaning fluid and/or debris drawn through the suction inlet to the recovery tank 18 .
- the outlet 142 is generally aligned with and is adjacent the filter 104 such that air exiting the recovery tank 18 passes through the outlet 142 toward the vacuum source 20 after passing through the filter 104 .
- the recovery tank 18 includes a latch 144 and the recovery tank recess 138 includes a latch recess 146 in the upper portion 143 of the tank recess 138 that receives the latch 144 to removably couple the recovery tank 18 to the body 14 .
- the recovery tank recess 138 creates a portion 148 of the body 14 that is relatively narrow and flexible relative to the other portions of the body 14 . When the narrow portion 148 flexes in a rearward direction, the front height 153 of the tank recess 138 may increase.
- the body 14 includes projections 150 that are received in corresponding recesses 152 of the cover 76 of the recovery tank 18 .
- the interaction of the projections 150 in the recesses 152 holds the cover 76 in its position relative to the upper portion 143 of the tank recess 138 and the latch recess 146 .
- the recovery tank body 74 may remain seated in the lower portion 141 of the recovery tank recess 138 due to weight of cleaning solution in the recovery tank.
- the lid seal 79 is configured to providing sealing engagement for the distance 81 of the travel of the cover 76 along the sidewall, selected to accommodate the amount of flexibility in the narrow portion 148 .
- the recovery tank cover may be fixed to the recovery tank body and the recovery tank body retained in the lower portion of the recovery tank recess.
- engagement of the projections 150 received in the corresponding recesses 152 of the cover inhibit relative movement between the components stiffening the body along the narrow portion providing additional support.
- the projections 150 are located in the recovery tank recess 138 and the corresponding recesses 152 are located in the cover 76 of the recovery tank 18 .
- the projections 150 and recesses 152 may be in other suitable locations.
- the recovery tank 18 may include the projections 150 and the body 14 may include the recesses 152 .
- the floor cleaner 10 includes two projections 150 and two recesses 152 , in other embodiments, the floor cleaner 10 may include one or more than two of each of the projections 150 and recesses 152 .
- the recovery tank is a collection bin having a cover, for example for a dry vacuum or other wet or dry suction cleaner, wherein the collection bin includes at least one projection and/or recess and the body includes the corresponding projections or recesses.
- the interaction of the one or more projection in the corresponding recess holds the collection bin in its position relative to the body.
- the body 14 is pivotable relative to the base 12 about the first axis 160 between the upright storage position ( FIG. 2 ) and inclined operating position.
- the body 14 is pivoted about the first axis 160 by the user using the handle 34 .
- the base 12 further includes a brushroll 162 ( FIG. 4 ) that is rotatable relative to the base 12 about a brushroll axis 164 .
- the first axis 160 is offset from the brushroll axis 164 is a direction toward the back side 56 of the floor cleaner 10 .
- the first axis 160 is parallel to the brushroll axis 164 in the illustrated embodiment.
- the first axis 160 extends through the wheels 28 of the base 12 .
- the first axis 160 is coaxial with the axis about which the wheels 28 rotate.
- the body 14 is also pivotable relative to the base 12 about a second axis 166 to steer the base 12 as the base 12 moves over the surface 22 .
- the body 14 is pivoted about the second axis 166 by the user using the handle 34 .
- the floor cleaner 10 further includes a left side 168 normal to the front side 54 and the back side 56 and a right side 170 opposite the left side 168 and normal to the front side 54 and the back side 56 .
- the user pivots the body 14 about the second axis 166 to move the body 14 relative to the base 12 in a first direction toward the right side 170 and in a second direction toward the left side 168 to steer the floor cleaner 10 left or right and the user pushes the floor cleaner 10 along the surface 22 .
- the second axis 166 is perpendicular to the first axis 160 and the brushroll axis 164 in the illustrated embodiment.
- the second axis 166 extends in a direction from the back side 56 to the front side 54 .
- the illustrated second axis 166 is inclined relative to the surface 22 when the body 14 is in the upright storage position such that the second axis 166 is at an acute angle 174 relative to the surface 22 as illustrated FIG. 4 .
- the angle 174 is about 30 degrees.
- the angle 174 is in a range from about 25 degrees to about 35 degrees.
- the angle 174 is in a range from about 15 degrees to about 45 degrees.
- the floor cleaner 10 includes a link 172 that connects the body 14 to the base 12 .
- the link 172 is pivotably coupled to the base 12 forming the first axis 160 along the pivot and the link 172 coupled to the body 14 along the steering axle 72 forming the second axis 166 .
- the link 172 functions as a steering couple by constraining the body 14 and the base 12 for co-rotation about the steering axis.
- the link 172 includes one or more slots 173 that engage corresponding protrusions on the body 14 functioning as stops to limit a pivoting range of movement of the body 14 about the second axis 166 .
- the slots 173 limit a range of pivoting movement of the body 14 about the second axis to an angle of about 30 degrees in both the first direction and the second direction. In other embodiments, the range of pivoting movement is in a range from about 25 degrees to about 30 degrees in both directions. In other embodiments, the range of pivoting movement is in a range from about 15 degrees to about 50 degrees in both directions.
- the link 172 or the base 12 further includes at least one stop for limiting pivoting range of movement of the body 14 about the first axis 160 .
- pivoting range of movement of the handle axis 46 about the first axis 160 is from a position of about 90 degrees from the surface 22 (i.e., an upright storage position) to a position about 30 degrees from the surface 22 in a direction towards the back side 56 of the floor cleaner 10 .
- steering of the base 12 can be controlled by rotating the body 14 about the steering axis by twisting the handle grip to direct the base 12 in the desired direction.
- co-rotation of the body 14 with the link 172 turn the base 12 in plane parallel contact with the floor.
- Pivoting movement of the link 172 about the axis 160 may also help to maintain the base 12 in plane parallel contact with the floor.
- the center of gravity 58 when the supply tank 16 is full of cleaning fluid and the recovery tank 18 is empty is located rearward of the steering axis.
- the center of gravity axis 64 is along or rearward of the steering axis.
- the link 172 is in the form of a yoke.
- the yoke 172 defines an opening 176 .
- a suction conduit 178 which provides fluid communication between the suction inlet 30 and the recovery tank 18 , passes through the opening 176 of the yoke 172 .
- the yoke 172 is hollow, and may be divided into two internal chambers, such as a right chamber 177 and a left chamber 179 .
- a conduit 180 e.g., plastic tubing that fluidly couples the supply tank 16 and the distribution nozzle 32 extends through the yoke 172 and into the base 12 .
- the conduit 180 extends through either the right chamber 177 or the left chamber 179 , and wires 181 for powering components in the base 12 extend through the other of the right chamber 177 or the left chamber 179 .
- the yoke 172 may include internal dividers isolating the right chamber 177 from the left chamber 179 such that the wires 181 remain separated from the conduit 180 passing though the yoke.
- the floor cleaner 10 includes the brushroll or agitator roll 162 adjacent the suction inlet 30 ( FIGS. 16 and 17 ).
- the brushroll 162 is rotatable about the axis 164 to agitate, wipe, scrub, etc. the surface 22 that is being cleaned.
- the floor cleaner 10 includes a motor 184 ( FIG. 12 ) that rotates the brushroll 162 about the axis 164 .
- the brushroll 162 is operably connected to the motor 184 by a transmission that may include a belt, pulleys, gears, and the like.
- the brushroll 162 protrudes from the lower end 52 of the base 12 so that the brushroll 162 contacts the surface 22 being cleaned.
- the brushroll 162 and suction inlet 30 cooperate to ingest air and debris from the lower end 52 .
- the brushroll 162 and suction inlet 30 cooperate to ingest air and debris from the front side 54 of the base 12 .
- the illustrated floor cleaner 10 includes only a single brushroll 162 , in other embodiments, the floor cleaner 10 may include additional brushrolls parallel to the brushroll 162 and formed from the same or different materials.
- the brushroll 162 has an outer cleaning medium 186 that contacts the surface 22 .
- the cleaning medium 186 includes a hydrophobic textile material in one embodiment.
- the hydrophobic textile material of the cleaning medium 186 may include a fine tufted fabric material.
- the tufted textile material of the cleaning medium 186 is formed by a tufted pile of fine hydrophobic fibers, such as hydrophobic nylons, polyesters, polyolefins, or other hydrophobic fibers arranged on the brushroll 162 .
- the fibers can be made from any hydrophobic materials such as a flouropolymer such as polytetrafluoroethylene in one embodiment.
- the fibers are coated with a hydrophobic coating or otherwise treated to be hydrophobic.
- the material for the tufted fibers of the hydrophobic textile material of the cleaning medium 186 has hydrophobicity measured by a contact angle in a range from 90° to 135° in one embodiment. In another embodiment, the hydrophobicity of the tufted material for the cleaning medium 186 is measured by a contact angle greater than 135°. In yet another embodiment, the material forming the textile material for the cleaning medium 186 has a hydrophobicity measured by a contact angle in a range from 65° to 100°.
- the lower end 52 of the base 12 may include a plurality of bristles 188 , which are tufted bristles in one embodiment.
- the bristles 188 are arranged in a row and are generally fixed relative to the base 12 .
- the bristles 188 are received in an aperture 190 to attach the bristles 188 to the base 12 . Only one group of bristles 188 is illustrated in both FIGS. 16 and 17 , but it should be understood that a group of bristles 188 would be in each of the apertures 190 .
- the bristles 188 include a hydrophilic cleaning medium.
- the base 12 includes no hydrophilic cleaning media other than, optionally, the plurality of tufted bristles 188 .
- the base 12 includes no hydrophilic cleaning media.
- the base 12 includes a brushroll chamber 194 and a brushroll cover 196 that is removable to access the brushroll chamber 194 and the brushroll 162 .
- the cover 196 is easily removable by the user, and may be removable using one hand, to access the brushroll 162 for cleaning or replacement.
- the base 12 also includes a first squeegee 224 and a second squeegee 226 further discussed below.
- the first squeegee 224 is configured to contact the surface to be cleaned 22 rearward of the brushroll chamber 194 .
- the brushroll chamber 194 includes a forward wall 191 and a rear wall 192 having a brushroll chamber outlet 193 .
- the rear wall 191 extends downward toward the surface to be cleaned extending lower than and surrounding the brushroll chamber outlet 193 .
- the forward wall 191 and the rear wall 192 are attached to and are removable with the brushroll cover 196 .
- the base 12 includes a seal 195 , shown in FIGS. 15 and 17 , at the inlet of the suction conduit 178 .
- the seal 195 engages the perimeter of the brushroll chamber outlet 193 upon installation of the cover 196 on the base 12 to inhibit leakage of water and air. In one embodiment ( FIG.
- the forward wall 191 is reduced or omitted such that the brushroll cover 196 ′ includes a front edge 197 that is raised from the surface to be cleaned 22 forming a front opening that exposes the brushroll 162 , as further discussed below.
- the rear wall 192 is attached to and is removable with the brushroll cover 196 .
- the first squeegee 224 is attached to a lower end of the rear wall 192 . As shown in FIG. 19 , the first squeegee 224 is removable with the brushroll cover 196 .
- the base 12 includes a first actuator 198 and a second actuator 200 that are used to remove the cover 196 .
- the first actuator 198 slides in a first direction (represented by arrow 202 , FIG. 18 ) to move the actuator 198 from a latched position and to an unlatched position.
- the second actuator 200 slides in a second direction (represented by arrow 204 ), directly opposed to the first direction, from a latched position and an unlatched position. That is, the first actuator 198 is pushed or pressed by the user in the direction 202 while the second actuator 200 is pushed or pressed by the user in the opposite direction 204 .
- the spacing between the actuators 198 , 200 is configured to allow the actuators 198 , 200 to be operated or squeezed by a single handle of a user (e.g., user's thumb and index finger).
- the actuators 198 , 200 are undercut, wherein a surface 201 of one or both of the actuators 198 , 200 with which the user operates or squeezes is recessed below an upper portion or ledge 203 , the recessed surface 201 providing clearance and the upper portion or ledge 203 of each actuator 198 , 200 providing a grip to the user to lift the cover 196 from the base 12 (e.g., with one hand).
- a first latch 206 is coupled to the first actuator 198 and a second latch 208 is coupled to the second actuator 200 .
- the first actuator 198 moves from the latched position to the unlatched position
- the first latch 206 moves in the same direction from an engaged position with the base 12 (position shown in FIG. 20 ) to a disengaged position with the base 12 .
- the second actuator 200 moves from the latched position to the unlatched position
- the second latch 208 moves in the same direction from an engaged position with the base 12 (position shown in FIG. 20 ).
- the second latch 208 engages a corresponding right retainer 211 in the base 12 in the engaged position.
- the first latch 206 engages a corresponding left retainer 213 in the engaged position. With the latches 206 , 208 in the disengaged positions, the cover 196 can be removed from the base 12 .
- the actuators 198 , 200 and the latches 206 , 208 are coupled to the cover 196 so that the actuators 198 , 200 and the latches 206 , 208 are removed from the base 12 with the cover 196 .
- a spring or biasing member 210 which is a coil spring in the illustrated embodiment, is located between the actuators 198 , 200 .
- the spring 210 may be any spring or resilient member configured to presses the actuators 198 , 200 into the latched positions and the latches 206 , 208 into the engaged positions.
- the latches 206 , 208 both include a cam surface 212 .
- the cam surfaces 212 allow the cover 196 to be reattached to the base 12 without the user having to actuate or squeeze the actuators 198 , 200 .
- the cam surfaces 212 contact the base 12 to automatically move the actuators 198 , 200 toward the unlatched positions to allow the cover 196 to be reattached to the base 12 .
- the biasing member 210 then moves the actuators 198 , 200 into the latched positions and the latches 206 , 208 into the engaged positions.
- the distribution nozzle 32 is attached to the brushroll cover 196 and the nozzle 32 is removable from the base 12 with the cover 196 .
- the base 12 includes a fluid coupling 214 having a seal 223 and the cover 196 includes a fluid coupling 216 that mates with the fluid coupling 214 .
- a connecting conduit 217 extends through the cover 196 between the fluid coupling 216 and the nozzle 32 .
- the couplings 214 , 216 allow the cover 196 to be removable from the base 12 and yet provide fluid communication between the supply tank 16 and the distribution nozzle 32 via the supply conduit 180 when the cover 196 is attached to the base 12 .
- the base includes a second coupling 219 engaging a corresponding recess 221 in the cover 196 .
- the second coupling 219 is shaped similar to the first fluid coupling 214 and also includes the seal 223 .
- force is applied to connect the fluid coupling 214 , 216 .
- the location of the first fluid coupling 214 in the illustrated embodiment is off-center relative to the cover 196 and the latch actuators 198 , 200 .
- the second coupling 219 and corresponding recess 221 is off-center in the opposite direction and configured to provide a coupling resistance similar to the coupling resistance of the first fluid coupling 214 .
- the approximately symmetrical coupling resistance provided by the fluid coupling 214 , 216 and the coupling 219 inhibit binding and provide a more uniform assembly motion.
- the second coupling 219 does not convey any fluid and is a non-fluid coupling. In other embodiments, the second coupling 219 may convey fluid to the nozzle 32 .
- the distribution nozzle 32 casts a spray pattern 218 of the cleaning fluid from the supply tank 16 onto the surface 22 .
- the spray pattern 218 is sprayed out in front of the front side 54 of the base 12 . That is, the cleaning fluid is not sprayed under the brushroll cover 196 where it cannot be seen by the user.
- the spray pattern 218 is visible to the user because the spray pattern 218 is out in front of the base 12 .
- the cleaning fluid is sprayed or distributed from the nozzle 32 in response to the user's actuation of the actuator 38 ( FIG. 1 ), which is a trigger in the illustrated embodiment.
- the actuation of the fluid distribution may be controlled by motion of the cleaner or other automated modes.
- the base 12 includes lights 222 electronically coupled to a printed circuit board (PCB) 225 ( FIG. 13 ).
- the PCB X is vertically mounted in the base 12 to provide space efficiency, however the PCB 225 may be positioned in alternative orientations in other embodiments (e.g., horizontal or forward-facing).
- the lights 222 are light emitting diodes (LEDs).
- the lights 222 are directed toward the front side 54 of the base 12 to illuminate the spray pattern 218 so that the spray pattern 218 is even more visible to the user.
- the lights 222 are LEDs electronically coupled to the PCB 225 and directed toward the front side 54 of the base 12 .
- the lights 222 are water resistant and/or impact resistant.
- the lights 222 are side-fire LEDs.
- the illumination of the spray pattern 218 by the lights 222 provides visual confirmation to the user that cleaning fluid is being discharged from the nozzle 32 .
- the lights 222 remain on continuously during operation as headlights for illumination of the working surface.
- the lights are positioned to also illuminate the spray pattern 218 when the spray is actuated.
- the base may further include indicator lights 220 visible to the user during operation.
- the indicator lights 220 are turned on in response to actuation of the actuator 38 by the user, which causes the cleaning fluid to flow through the nozzle 32 .
- the floor cleaner 10 includes a pump that draws the cleaning fluid out of the supply tank 16 and pressurizes the cleaning fluid. The indicator lights 220 , and optionally, the lights 222 , may then be turned on in response to power being supplied to the pump.
- the fluid supply conduit 180 between the supply tank 16 and the nozzle 32 includes a fluid flow sensor.
- the indicator lights 220 and optionally, the lights 222 when the flow sensor detects fluid flow in the conduit 180 , the lights are turned on, and the indicator lights 220 , and optionally, the lights 222 , are off if there is no flow through the conduit 180 .
- the indicator lights 220 and/or the lights 222 may provide a signal indicating no flow in the conduit, for example if the supply tank were empty or other flow interruption.
- the indicator lights 220 , and optionally, the lights 222 are turned on in response to power being supplied to the vacuum source 20 .
- the indicator lights 220 may be any suitable color and the color of the indicator lights 220 , and optionally, the lights 222 , may change depending on the operational state of the floor cleaner 10 .
- a first color maybe displayed when power is supplied to the vacuum source 20 and there is no flow of cleaning fluid.
- a second color may be displayed when there is flow of cleaning fluid through the nozzle 32 .
- the base 12 includes a first squeegee 224 and a second squeegee 226 .
- the first squeegee 224 contacts the surface 22 to be cleaned.
- the first squeegee 224 pushes fluid along the surface in the forward direction, including cleaning fluid, toward the suction inlet 30 . This reduces the amount of fluid that remains on the surface 22 .
- the second squeegee 226 contacts the brushroll 162 .
- the brushroll 162 rotates about the axis 164 in the direction of arrow 230 .
- the second squeegee 226 wipes fluid and debris from the brushroll 162 and directs the fluid and debris toward suction conduit 232 that is in fluid communication with the vacuum source 20 .
- the location of the second squeegee 226 in combination with the spray distribution 218 of the cleaning fluid from the supply tank forward of the front side 54 of the base 12 improves cleaning performance, dry time, and minimizes the amount of fluid and debris that travels back to the surface 22 as the brushroll rotates back down toward the surface 22 .
- the second squeegee 226 also reduces air ingress through the gap between the brushroll cover 196 and the brushroll 162 .
- the first squeegee 224 extends from the lower end 52 of the base 12 between the suction inlet 30 and the back side 56 of the base 12 .
- the squeegee 224 extend along the suction inlet 30 adjacent the inlet 30 to wipe fluid toward the suction inlet 30 .
- the squeegee 224 also extends in a direction along the brushroll axis 164 , parallel to the brushroll axis 164 .
- the brushroll 162 extends beyond the lower end 52 of the base 12 and the suction inlet 30 is between the first squeegee 224 and a location 234 wherein the brushroll 162 extends beyond the lower end 52 of the base 12 .
- the first squeegee 224 is removably coupled to the lower end 52 of the base 12 on a brush bar 189 ( FIG. 16 ) with the bristles 188 , wherein both the first squeegee 224 and the bristles 188 are removable together from the base 12 on the brush bar 189 .
- the second squeegee 226 is located above the first squeegee 224 and in the brushroll chamber 194 .
- the brushroll axis 164 is between the lower end 52 of the base 12 and the second squeegee 226 .
- the second squeegee 226 extends along and parallel to the brushroll axis 164 .
- the second squeegee 226 is attached to the brushroll cover 196 so that the second squeegee 226 is removable from the base 12 with the brushroll cover 196 .
- the second squeegee 226 is rearward of the brushroll axis 164 in a direction from the front side 54 to the back side 56 .
- the second squeegee 226 is above the brushroll axis 164 in a direction from the lower end 52 to the upper end 50 .
- a secondary distribution nozzle 227 ( FIG. 17 ) is positioned under the cover 196 proximate a surface of the brushroll 162 and rearward of the second squeegee 226 in the brushroll chamber 194 .
- the secondary distribution nozzle 227 is configured to wet the brushroll 162 prior to the brushroll contacting the surface 22 to be cleaned while simultaneously cleaning the brushroll 162 .
- the second squeegee 226 is configured to wipe excess liquid from the brushroll 162 .
- a conduit fluidly couples the secondary distribution nozzle 227 to the supply tank 16 similar to conduit 180 of distribution nozzle 32 . In one embodiment, conduit 180 supplies fluid to both the distribution nozzle 32 and the secondary distribution nozzle 227 .
- rollers 236 configured to rotate around a roller axis extend from the lower end 52 of the base 12 to support the base 12 and the floor cleaner 10 on the surface 22 .
- the rollers 236 are adjacent the front side 54 of the base 12 between the front side 54 of the base and the location 234 where the brushroll 162 extends beyond the lower end 52 of the base 12 .
- the rollers 236 are forward of the brushroll axis 164 .
- the rollers 236 are arcuate along the roller axis, which is parallel to the first axis 160 .
- the brushroll cover 196 ′ includes a front edge 197 that is raised from the surface to be cleaned 22 forming a front opening that exposes the brushroll 162 , the brushroll extending through the front opening forward of the front side 54 of the base.
- the exposed portion of the brushroll 162 extending beneath the front edge 197 of the brushroll cover 196 ′ is configured for contacting and cleaning low, vertically-oriented surfaces (e.g., baseboards) forward of the front side 54 .
- the brushroll cover 196 ′ includes the front edge 197 positioned above the brushroll axis 164 and rearward of the front side 54 .
- the second squeegee 226 is positioned relative to the front edge 197 to inhibit discharge of debris forwardly from beneath the brushroll cover 196 ′.
- FIG. 22 illustrates one possible embodiment of the brushroll 162 .
- the brushroll includes a tufted pile formed of fiber covering substantially all of the brushroll 162 .
- the tufted pile covers a portion of the brushroll 162 .
- the fiber may be yarn or may be monofilament fiber.
- the brushroll 162 may include an absorbent material, such as a mop roll.
- the brushroll 162 may include the hydrophobic properties and features discussed above.
- the brushroll 162 includes a first set of fibers 238 and a second set of fibers 240 .
- the fibers 238 , 240 are tufted on a backing, such as a textile backing or mesh backing, that is wrapped around and attached to the brushroll spindle 235 ( FIG.
- the fibers 238 have a different color than the fibers 240 .
- the fibers of the first set 238 have a diameter that is smaller than the diameter of the fibers of the second set 240 .
- the fiber diameter of the second set of fibers is at least 25% greater than the fiber diameter of the first set of fibers.
- the fiber diameter is between 30% and 60% greater than the fiber diameter of the first set of fibers.
- the fiber diameter of the second set of fibers is 50% greater than the fiber diameter of the first set of fibers.
- the fibers of the first set 238 have a diameter in a range from about 0.03 millimeters to about 0.08 millimeters.
- the first set of fibers have a diameter of about 0.05 millimeters.
- the first set of fibers is a different material than the second set of fibers.
- the first set of fibers extend across a substantial portion of the brushroll and the second set of fibers 240 wraps around the brushroll axis 164 in a helical pattern as shown in FIG. 22 .
- the first set of fibers extend between the helical wraps of the second set of fibers around the brushroll.
- the second set of fibers 240 wraps around the axis 164 about 5 to 6 times in the helical pattern.
- the fibers of the second set of fibers 240 have a diameter of at least 0.06 millimeters.
- the second set of fibers have a diameter of about 0.10 millimeters
- the first set of fibers 238 with the smaller diameter are more flexible and provide a wiping action on the surface 22 .
- the second set of fibers 240 with the larger diameter are relatively stiff for agitation of the surface and dampen vibration.
- fibers of the first set of fibers 238 and the fibers of the second set of fibers 240 have an equal length.
- the length of the fibers is in a range from about 5 millimeters to about 15 millimeters in one embodiment. In the illustrated embodiment, the length of the fibers is about 10 millimeters.
- the brushroll 162 includes a sleeve 242 between the spindle 235 and the tufted fiber backing, where the backing is attached to the sleeve 242 and the sleeve 242 is provided over the spindle.
- a second sleeve may be provided, wherein a third set of fibers being tufted on a second backing is attached to the second sleeve, and wherein the first sleeve is removable from the spindle and replaceable with the second sleeve.
- FIGS. 23-26 illustrate a base 12 according to another embodiment.
- the base 12 includes features similar to the base 12 of FIGS. 17-21 discussed above and only differences between the bases will be discussed below and similar components have been given the same reference number.
- the base 12 of FIGS. 23-26 includes the second squeegee 226 that contacts the brushroll 162 in a different position than the second squeegee of FIGS. 17-21 .
- the second squeegee 226 of FIG. 23 is positioned between the front edge 197 of the base 12 and the brushroll axis 164 .
- the second squeegee 226 is also offset from the front edge 197 in a direction toward the brushroll 162 .
- the front edge 197 is also raised from the surface or floor a distance 303 ( FIG. 24 ). In one embodiment the distance is about 7 millimeters, which allows debris to travel under the front edge 197 . In other embodiments, the distance 303 is in a range from about 4 mm to about 12 mm.
- the second squeegee 226 also includes slits 302 that extend through the squeegee 226 . In one embodiment, the slits 302 are spaced about one centimeter. In other embodiments, the spacing is in a range from about 0.5 cm to about 3 cm. The slits 302 provide additional flexibility to the squeegee 226 and allow individual segments of the squeegee to move or flex relative to adjacent segments.
- the second squeegee 226 contacts an area of the brushroll 162 after the area first passes by the suction conduit 232 . If any material remains on the brushroll 162 after first passing by the suction conduit 232 , the second squeegee 226 helps to retain the material on the brushroll 162 . By retaining the material on the brushroll 162 , this reduces the chance that the material will be discharged back onto the floor. Rather, the material may be suctioned from the brushroll 162 while making another pass by the suction conduit 232 .
- the base 12 further includes a flow channel 304 on each side of the suction conduit 232 where the conduit 232 opens into the brushroll chamber 194 .
- the flow channel 304 is symmetrical on each side of the suction conduit 232 .
- the flow channel 304 is formed by a recess such that a top edge 308 and a bottom edge 310 are formed by the recess. As seen in FIG. 24 , the top edge 308 contacts the brushroll 162 to facilitate removing liquid and debris from the brushroll 162 as the brushroll 162 rotates about axis 230 to direct the liquid and debris into the flow channel 304 .
- the bottom edge 310 is in close proximity to the brushroll 162 to reduce the gap between the base 12 and the brushroll 162 thereby increasing suction in the flow channel 304 .
- This directs airflow through the flow channel 304 and along the entire length of the brushroll 162 .
- the flow channel 304 direct debris and liquid toward and into the suction conduit 232 .
- the flow channel 304 has a height 314 measured from the bottom edge 310 to the top edge 308 .
- the height 314 increases along the brushroll 162 in a direction toward the suction conduit 232 .
- height 314 is approximately the same as a height 316 of the suction conduit 232 .
- the height 314 is approximately the same as a height 316 of an upper portion of the suction conduit 232 .
- FIGS. 27-31 illustrate a base 12 according to another embodiment.
- the base 12 includes features similar to the bases 12 of FIGS. 17-21 and FIGS. 23-26 discussed above and only differences between the bases will be discussed below and similar components have been given the same reference number.
- the base 12 of FIGS. 27-31 includes a third squeegee 229 that extends from the lower end 52 of the base 12 .
- the third squeegee 229 also extends along the suction inlet 30 adjacent the inlet 30 to wipe fluid toward the suction inlet 30 .
- the third squeegee 229 also extends in a direction along the brushroll axis 164 , parallel to the brushroll axis 164 .
- the third squeegee 229 is also parallel to the first squeegee 224 .
- the first squeegee 224 is coupled to the brushroll cover 196 so that the first squeegee 224 is removable from the base 12 with the cover 196 and the second squeegee 226 while the third squeegee 229 remains attached to the base 12 as shown in FIG. 31 .
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Abstract
Description
- This application claims priority to U.S. Provisional Patent Application No. 62/723,345, filed Aug. 27, 2018, and to U.S. Provisional Patent Application No. 62/808,527, filed Feb. 21, 2019, and to U.S. Provisional Patent Application No. 62/824,043, filed Mar. 26, 2019, the entire contents all of which are hereby incorporated by reference herein.
- The present disclosure relates to floor cleaners.
- In one embodiment a floor cleaner includes a supply tank configured to store a cleaning fluid and a distribution nozzle in fluid communication with the supply tank. The distribution nozzle is configured to dispense the cleaning fluid onto a surface to be cleaned. The floor cleaner further includes a vacuum source and a base movable over the surface to be cleaned. The base includes a front side, a back side opposite the front side, and a lower end configured to be adjacent the surface to be cleaned. The base further includes a brushroll rotatable about a brushroll axis. The base further includes a suction inlet adjacent the brushroll and adjacent the lower end of the base and in fluid communication with the vacuum source. The base further includes a first squeegee that extends from the lower end between the suction inlet and the back side of the base, the first squeegee configured to contact the surface to be cleaned. The base further includes a second squeegee that contacts the brushroll and a third squeegee that extends from the lower end of the base rearward of the first squeegee, the third squeegee configured to contact the surface to be cleaned.
- Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
-
FIG. 1 is a perspective view of a floor cleaner according to one embodiment. -
FIG. 2 is a side view of the floor cleaner ofFIG. 1 . -
FIG. 3 is a rear perspective view of the floor cleaner ofFIG. 1 . -
FIG. 4 is a cross-sectional view of the floor cleaner ofFIG. 1 . -
FIG. 5 is a partial view of the floor cleaner ofFIG. 1 illustrated a recovery tank removed from the floor cleaner. -
FIG. 6 is an alternative partial view of the floor cleaner ofFIG. 1 illustrating the recovery tank removed. -
FIG. 7 is a perspective view of the recovery tank of the floor cleaner ofFIG. 1 . -
FIG. 8 is a perspective view of the recovery tank ofFIG. 7 with a filter removed. -
FIG. 9 is a cross-sectional view of the recovery tank ofFIG. 7 . -
FIG. 10 is a partially exploded view of the recovery tank ofFIG. 7 . -
FIG. 10A is an alternative cross-sectional view of the recovery tank ofFIG. 7 . -
FIG. 11 is a partial cross-sectional view of the recovery tank ofFIG. 7 . -
FIG. 12 is a perspective view of a portion of the floor cleaner ofFIG. 1 with a portion of a base cover removed. -
FIG. 13 is an alternative perspective view ofFIG. 12 . -
FIG. 14 is a perspective view of a portion of the floor cleaner ofFIG. 1 . -
FIG. 15 is a perspective view of the portion of the floor cleaner ofFIG. 1 with a brushroll cover removed -
FIG. 16 is a perspective view of the underside of the base of the floor cleaner ofFIG. 1 -
FIG. 17 is a cross-sectional view of the base of the floor cleaner ofFIG. 1 -
FIG. 17A is a cross-sectional view of a base of a floor cleaner according to another embodiment. -
FIG. 18 is a perspective view of a portion of the floor cleaner ofFIG. 1 with the brushroll cover attached to the base. -
FIG. 19 is an alternative perspective view of the portion of the floor cleaner ofFIG. 18 with the brushroll cover removed from the base. -
FIG. 20 is a cross-sectional view of the base of the floor cleaner ofFIG. 1 . -
FIG. 21 is a perspective view of the base of the floor cleaner ofFIG. 1 with the brushroll cover attached to the base. -
FIG. 22 illustrates an embodiment of a brushroll for use in floor cleaner ofFIG. 1 . -
FIG. 23 is a cross-sectional view of a base of a floor cleaner according to another embodiment. -
FIG. 24 is an alternative cross-sectional view of the base ofFIG. 23 . -
FIG. 25 is an alternative cross-sectional view of the base ofFIG. 23 with a brushroll removed. -
FIG. 26 is an alternative cross-sectional view of the base ofFIG. 23 with the brushroll removed. -
FIG. 27 is a perspective view of a base of a floor cleaner according to another embodiment. -
FIG. 28 is a perspective view of the base ofFIG. 27 with a cover removed. -
FIG. 29 is a cross-sectional view of the base ofFIG. 27 taken along line 29-29 of FIG. - 27.
-
FIG. 30 is a cross-sectional view of the cover of the base taken along line 30-30 ofFIG. 28 . -
FIG. 31 is the cross-sectional view ofFIG. 29 but with the cover removed. - Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways.
-
FIG. 1 illustrates afloor cleaner 10. In the illustrated embodiment, thefloor cleaner 10 includes abase 12 and abody 14 pivotally coupled to thebase 12. Thebody 14 is pivotal relative thebase 12 about a first axis 160 (FIG. 3 ) between an upright storage position (FIG. 1 ) and an inclined operating position. Thefloor cleaner 10 further includes asupply tank 16, arecovery tank 18, and avacuum source 20. Thesupply tank 16 is configured to store a cleaning fluid and thefloor cleaner 10 is operable to dispense the cleaning fluid onto asurface 22 to be cleaned. Referring toFIG. 4 , thevacuum source 20 includes amotor 24 and afan 26. Themotor 24 and thefan 26 are operable to draw the cleaning fluid from thesurface 22 into therecovery tank 18. - The
base 12 is movable over thesurface 22 to be cleaned. In the illustrated embodiment, thebase 12 includeswheels 28 to facilitate moving thebase 12 over thesurface 22. Thebase 12 includes asuction inlet 30 in fluid communication with thevacuum source 20 and therecovery tank 18. The cleaning fluid is drawn from thesurface 22 through thesuction inlet 30 and into therecovery tank 18. The base 12 further includes adistribution nozzle 32 in fluid communication with thesupply tank 16. Thedistribution nozzle 32 dispenses the cleaning fluid toward thesurface 22. - The
floor cleaner 10 further includes ahandle 34. Thehandle 34 includes agrip 36 and anactuator 38 adjacent thegrip 36. Thegrip 36 is grabbed by the user to move thefloor cleaner 10 along thesurface 22 and to pivot thebody 14 relative to thebase 12. Theactuator 38 controls the flow of cleaning fluid from thesupply tank 16 through thedistribution nozzle 32. Thehandle 34 further includes anextension 40 that extends from thebody 14. Theextension 40 includes afirst end 42, asecond end 44, and ahandle axis 46 that extends centrally through thefirst end 42 and thesecond end 44 as illustrated inFIG. 4 . Thefirst end 42 is coupled to and adjacent thebody 14. Thesecond end 44 is adjacent thegrip 36. - The
floor cleaner 10 further includes a battery 48 (FIG. 4 ) that provides power to thevacuum source 20. The battery 48 is a rechargeable lithium-ion battery in one embodiment. - Referring to
FIGS. 1-4 , thefloor cleaner 10 further includes anupper end 50 and alower end 52 opposite theupper end 50. Thehandle 34 is adjacent theupper end 50 and thebase 12 is adjacent thelower end 52. Thefloor cleaner 10 further include afront side 54 and aback side 56 opposite thefront side 54. Thesuction inlet 30 is adjacent thefront side 54. - The relative positions of the components of the
floor cleaner 10 will be discussed below. It has been found that the disclosed relative positioning of the components provides thefloor cleaner 10 that is well balanced and comfortable for the operator to control while thefloor cleaner 10 is moved along thesurface 22. Referring toFIG. 4 , when thesupply tank 16 is full of cleaning fluid and therecovery tank 18 is empty, thefloor cleaner 10 has a center ofgravity 58. When thesupply tank 16 is partially full and therecovery tank 18 is partially full, thefloor cleaner 10 has a center ofgravity 60. When thesupply tank 16 is empty and therecovery tank 18 is full, thefloor cleaner 10 has a center ofgravity 62. Regardless of the fill levels in thetanks gravities handle axis 46 and generally along a center ofgravity axis 64 that is behind thehandle axis 46 and extending through thebody 14. In the illustrated embodiment, thebody 14 is coupled to thebase 12 along a steeringaxle 72 forming asecond axis 166 about which thebody 14 is rotatable by the user holding the hand grip about a steering axis extending from thegrip 36 to the steeringaxle 72. In one embodiment, the center ofgravity axis 64 is along or rearward of the steering axis as further discussed below. - In one possible embodiment, the center of gravity configurations discussed above are achieved by arranging the components as follows. The
vacuum source 20 has a center ofgravity 66. Themotor 24 of thevacuum source 20 is between therecovery tank 18 and the battery 48 in a direction from thelower end 52 to theupper end 50. Thehandle 34 and theextension 40 are adjacent thefront side 54. - The battery 48 has a center of
gravity 68 and the battery 48 is adjacent theback side 56. The battery 48 is between theback side 56 and thehandle axis 46 in a direction from thefront side 54 to theback side 56. The battery 48 is also between thesupply tank 16 and thefront side 54 in a direction from thefront side 54 to theback side 56. The battery 48 is also between thesupply tank 16 and themotor 24 in a direction from thefront side 54 to theback side 56. The battery 48 is also between themotor 24 and theupper end 50 in the direction from thelower end 52 to theupper end 50. The battery 48 is also closer to theupper end 50 than therecovery tank 18 and thesupply tank 16 in a direction from theupper end 50 to thelower end 52. The battery 48 is also between theupper end 50 and thesupply tank 16 in a direction from theupper end 50 to thelower end 52. - Referring to
FIGS. 3 and 4 , the battery 48 is stored in a battery chamber 47, the battery chamber 47 having an opening through which the battery 48 may be removed or replaced within the battery chamber 47. Abattery door 49 is coupled to an edge of the opening of the battery chamber 47, thebattery door 49 being configured to cover and provide access to an interior of the battery chamber 47. In the illustrated embodiment, thebattery door 49 is pivotably coupled about an edge of the opening by ahinge 51 and configured to pivot between a closed position and an open position providing access to an interior of the battery chamber 47. In one embodiment, thebattery door 49 pivots open in a direction toward theback side 56 of thefloor cleaner 10 upon being opened by a user. Thebattery door 49 may be spring-loaded, wherein thebattery door 49 automatically pivots toward the closed position upon being released from an opened position by a user. In the illustrated embodiment, the battery 48 moves into and out of the battery chamber 47 in a direction along thehandle axis 46 when thebattery door 49 is open. Thehandle axis 46 is positioned generally upright when thefloor cleaner 10 is in the upright storage position (FIG. 2 ). By positioning the battery 48 upright within the battery chamber 47 while thefloor cleaner 10 is in an upright storage position, replacement of the battery 48 into the battery chamber 47 may be gravity-assisted. - In one embodiment (not shown), the locations of the battery 48 and
supply tank 16 shown inFIG. 4 are exchanged such that thesupply tank 16 is between the battery 48 and thefront side 54 in a direction from thefront side 54 to theback side 56 and thesupply tank 16 is also between the battery 48 and themotor 24 in a direction from thefront side 54 to theback side 56. - The
supply tank 16 has a center ofgravity 70 when full. Thesupply tank 16 is adjacent theback side 56 and thesupply tank 16 defines a portion of theback side 56. Thesupply tank 16 is between theback side 56 and the battery 48 in the direction from thefront side 54 to theback side 56. - The
recovery tank 18 is adjacent thefront side 54 and therecovery tank 18 forms a portion of thefront side 54. Thehandle axis 46 extends through therecovery tank 18. Therecovery tank 18 is between thelower end 52 and thesupply tank 16 in the direction from theupper end 50 to thelower end 52. - It should be understood that modifications to the locations of the components discussed above could be made while still achieving the desired results of the center of gravity locations that provide the
floor cleaner 10 that is well balanced and comfortable for the operator to control while the cleaner is moved along thesurface 22. - Referring to
FIGS. 9-11 , therecovery tank 18 includes atank body 74 and acover 76 coupled to thetank body 74. Thetank body 74 has alower end wall 78 and asidewall 80 that extends upwardly from thelower end wall 78 to an openupper end 82 of thetank body 74. Thelower end wall 78 includes aninlet aperture 84 and aninlet duct 86 that extends upwardly from thelower end wall 78. Theinlet duct 86 includes anoutlet 88 at an end of theduct 86 opposite theinlet aperture 84. Air and fluid enter therecovery tank 18 through theinlet duct 86 and through theoutlet 88 of theinlet duct 86. In the illustrated embodiment, theinlet duct 86 decreases in diameter in a direction extending upwardly from the lower end wall, wherein the diameter of theinlet aperture 84 is greater than the diameter of theoutlet 88. - The
cover 76 is removably coupled to the openupper end 82 of thetank body 74 to close the openupper end 82 of thetank body 74. Thecover 76 is removable for emptying thetank body 74 when full. Thecover 76 includes alid seal 79 around the perimeter of the cover between thesidewall 80 and thecover 76. Thelid seal 79 is positioned offset from theupper end 82 toward the lower end wall 78 a desired distance providing sealing engagement for adistance 81 of the travel of thecover 76 lifting from the openupper end 82 of thetank body 74. Thecover 76 includes abaffle 90 that surrounds theoutlet aperture 88 of theinlet duct 86. Thebaffle 90 includes one or more arcuate redirectingsurfaces 93 configured to turn the air and fluid from theoutlet 88 of theinlet duct 86 toward thelower end wall 78. More specifically, redirecting the airflow from an upwardly directed flow along theinlet duct 86 to a downwardly directed flow toward thelower end wall 78 and/orsidewalls 80. In the illustrated embodiment, the baffle includes two arcuate redirectingsurfaces 93, dividing the airflow from theoutlet aperture 88 and redirecting the divided airflows to downwardly directed flows toward thelower end wall 78 and/orsidewalls 80. The arcuate redirectingsurface 93 has anarc angle 95 greater than 120 degrees. In the illustrated embodiment, the arcuate redirectingsurface 93 has anarc angle 95 greater than 150 degrees. Thebaffle 90 facilitates separation of the fluid from the suction airflow and directs the fluid down toward thelower end wall 78 of the tank body. In the illustrated embodiment, thebaffle 90 extends in a direction toward thelower end wall 78 past or overlapping theoutlet 88 and surrounding a portion of theinlet duct 86. Thecover 76 also includes asuction air outlet 92 in fluid communication with thevacuum source 20. Air exits therecovery tank 18 through theair outlet 92. Thebaffle 90 inhibits cleaning fluid from traveling directly into thesuction air outlet 92. Thecover 76 further includes acage 94 that surrounds thesuction air outlet 92. Thecage 94 includesside apertures 96 and abottom aperture 98. Alip 100 surrounds thebottom aperture 98. The side apertures 96 may include a screen(s) 101 (FIG. 10 ) that filters the suction air flow before the suction airflow passes through thesuction air outlet 92. Thescreen 101 includes screen openings providing an open area between 35% and 60% open. In one embodiment, the screen openings provide an open area between 40% and 45% open. In one embodiment, thecage 94 is releasably coupled to thecover 76 such as by a quarter-turn lock, hinge, or other latching arrangement to allow a user to open or remove thecage 94 for cleaning or maintenance. - The
cover 76 further includes afilter aperture 102 in fluid communication with thevacuum source 20 and downstream from thesuction air outlet 92. Afilter 104 is received in thefilter aperture 102 to filter the suction airflow before passing through thevacuum source 20. The filter includes aframe 106 andfilter media 108. Theframe 106 includes atab 110 that is pulled upwardly to remove thefilter 104 from thefilter aperture 102 for replacement or for emptying therecovery tank 18. Theframe 106 includessidewalls 112 that are received in thefilter aperture 102. Thesidewalls 112 of thefilter 104 are angled away fromsidewalls 114 of thefilter aperture 102, i.e., thesidewalls 112 are chamfered such that the length of the filter on the upstream side is shorter than the length of the filter on the downstream side. The relative angle between thewalls filter 104 in thefilter aperture 102 and allows for pivoting of thefilter 104 within thefilter aperture 102 when thefilter 104 is removed by a user pulling only thesingle tab 110 using one hand. In addition, thesidewalls 112 of thefilter 104 are not perpendicular to the plane of the filter, instead are angled inwardly toward thefilter media 108. Thefilter media 108 can include any suitable filter media (e.g., paper or other cellulosic media). In one embodiment, thefilter media 108 is pleated and includes a water repellant or resistant coating. - The
recovery tank 18 further includes ashutoff float 116. Theshutoff float 116 includes afloat body 118, aclosure 120, and anextension 122 that extends between theclosure 120 and thefloat body 118 to space theclosure 120 from thefloat body 118. Therefore, theclosure 120 is positioned further from the surface of the fluid in therecovery tank 18 and the fluid is less likely to be drawn through thesuction air outlet 92. Thefloat body 118 floats on the surface of the fluid in therecovery tank 18 and theclosure 120 is raised until theclosure 120 is received in thesuction air outlet 92 to close thesuction air outlet 92 when the surface of the liquid exceeds a desired level. Thefloat body 118 includes anaperture 124 extending through thefloat body 118. Theinlet duct 86 extends through theaperture 124 of thefloat body 118 such that thefloat body 118 surrounds at least a portion of theinlet duct 86 so that theinlet duct 86 guides movement of theshutoff float 116 as theclosure 120 travels toward and away from thesuction air outlet 92 along the inlet duct. Thefloat body 118 also includes a chamferedbottom surface 126 configured to float on the surface of the fluid in therecovery tank 18. The angle of the chamferedbottom surface 126 is approximately the angle of thebody 14 relative to thesurface 22 when thebody 14 is in an inclined operating position. Therefore, the chamferedbottom surface 126 is approximately parallel to and in contact with the surface of the fluid in therecovery tank 18 when the handle is in a selected inclined operating position. In operation, theshutoff float 116 moves between a lowermost position where theclosure 120 is distanced from thesuction airflow outlet 92 and a uppermost position where theclosure 120 closes thesuction airflow outlet 92. Thelip 100 of thecage 94 contacts and retains theclosure 120 to limit downward movement of theshutoff float 116 to the lowermost position. - The
recovery tank 18 further includes astrainer 128. Thestrainer 128 is positioned inside thetank body 74 and thestrainer 128 moves relative to thetank body 74 from a lowermost position (FIG. 11 ) to a removed position outside thetank body 74 through the openupper end 82 of thetank body 74. Thestrainer 128 is used to strain debris from the fluid in thetank body 74. Thestrainer 128 includes aperforated body 130 and ahandle 132 that extends from theperforated body 130. Thehandle 132 includes agrip portion 133 adjacent the openupper end 82 for accessibility when thecover 76 is removed from the recovery tank. In the illustrated embodiment, thebaffle 90 extends past theoutlet 88 of theinlet duct 86 to direct entering fluid toward thelower end wall 78 and away from thehandle 132 of the strainer. More specifically, thebaffle 90 includes arear wall 91 positioned to inhibit splashing of water against thegrip portion 133 of thehandle 132 to keep the grip portion relatively clean. In an alternative embodiment, a portion of thebaffle 90 proximate thehandle 132 extends farther toward thelower end wall 78 than the remaining portions of thebaffle 90 to redirect fluid away from thehandle 132. - The
tank body 74 includes astrainer lip 134. As shown inFIG. 11 , when thestrainer 128 is in the lowermost position, theperforated body 130 contacts thelip 134 to space theperforated body 130 from thelower end wall 78 of thetank body 74 to define agap 136 between theperforated body 130 and thelower end wall 78. Also when thestrainer 128 is in the lowermost position, thehandle 132 of thestrainer 134 is between theinlet duct 86 and thesidewall 80 of thetank body 74 and theperforated body 130 is not parallel to thelower end wall 78. Theperforated body 130 includes anaperture 137 and theinlet duct 86 extends through theaperture 137 to position thestrainer 128 in thetank body 74. In one embodiment, theaperture 137 is sized and/or shaped to engage an outer surface of theinlet duct 86 in the installed position of the strainer in frictional engagement, retaining thestrainer 134 onto theinlet duct 86 when therecovery tank 18 is inverted. In an embodiment shown inFIG. 10A , theaperture 137 includes one ormore protrusions 139 configured to frictionally engage the outer surface of theinlet duct 86 holding thestrainer 128 in place at a diameter of theinlet duct 86 corresponding to the installed position of the strainer. The strainer may be retained with a frictional fit or by coupling engagement between the inlet duct and the strainer. - The
recovery tank 18 includes atank handle 77 on the front side 54 (FIG. 6 ) configured for supporting and lifting therecovery tank 18 and optionally for use in lifting thefloor cleaner 10. In the illustrated embodiment, the tank handle 77 is inset in thefront side 54 of therecovery tank 18 to provide a smooth form to thefront side 54 offloor cleaner 10, wherein forward space is conserved by not having the tank handle 77 extend out from thefront side 54. - Referring to
FIGS. 5 and 6 , thebody 14 includes arecovery tank recess 138 that receives therecovery tank 18 when therecovery tank 18 is coupled to thebody 14. Thetank recess 138 includes aninlet 140 in alower portion 141 of thetank recess 138 and anoutlet 142 in anupper portion 143 of thetank recess 138. Theinlet 140 is in fluid communication with thesuction inlet 30 and generally mates with the recoverytank inlet aperture 84 delivering cleaning fluid and/or debris drawn through the suction inlet to therecovery tank 18. Theoutlet 142 is generally aligned with and is adjacent thefilter 104 such that air exiting therecovery tank 18 passes through theoutlet 142 toward thevacuum source 20 after passing through thefilter 104. Therecovery tank 18 includes alatch 144 and therecovery tank recess 138 includes alatch recess 146 in theupper portion 143 of thetank recess 138 that receives thelatch 144 to removably couple therecovery tank 18 to thebody 14. Therecovery tank recess 138 creates aportion 148 of thebody 14 that is relatively narrow and flexible relative to the other portions of thebody 14. When thenarrow portion 148 flexes in a rearward direction, thefront height 153 of thetank recess 138 may increase. In order to prevent unwanted release of thelatch 144 from therecess 146 when the tank recessfront height 153 increases, thebody 14 includesprojections 150 that are received in correspondingrecesses 152 of thecover 76 of therecovery tank 18. The interaction of theprojections 150 in therecesses 152 holds thecover 76 in its position relative to theupper portion 143 of thetank recess 138 and thelatch recess 146. In operational circumstances when thenarrow portion 148 flexes in a rearward direction and the tank recessfront height 153 increases, therecovery tank body 74 may remain seated in thelower portion 141 of therecovery tank recess 138 due to weight of cleaning solution in the recovery tank. When thecover 76 remains connected to theupper portion 143 of the recovertank recess 138 and therecovery tank body 74 remains connected to thelower portion 141 of the recovertank recess 138, thecover 76 moves relative to thetank body 74 toward the openupper end 82 of the recovery tank. Thelid seal 79 is configured to providing sealing engagement for thedistance 81 of the travel of thecover 76 along the sidewall, selected to accommodate the amount of flexibility in thenarrow portion 148. - In an alternative embodiment, not shown, the recovery tank cover may be fixed to the recovery tank body and the recovery tank body retained in the lower portion of the recovery tank recess. In such an embodiment, engagement of the
projections 150 received in the correspondingrecesses 152 of the cover inhibit relative movement between the components stiffening the body along the narrow portion providing additional support. - In the illustrated embodiment, the
projections 150 are located in therecovery tank recess 138 and the correspondingrecesses 152 are located in thecover 76 of therecovery tank 18. In other embodiments, theprojections 150 and recesses 152 may be in other suitable locations. For example, therecovery tank 18 may include theprojections 150 and thebody 14 may include therecesses 152. Also, in the illustrated embodiment, thefloor cleaner 10 includes twoprojections 150 and tworecesses 152, in other embodiments, thefloor cleaner 10 may include one or more than two of each of theprojections 150 and recesses 152. - In one embodiment, the recovery tank is a collection bin having a cover, for example for a dry vacuum or other wet or dry suction cleaner, wherein the collection bin includes at least one projection and/or recess and the body includes the corresponding projections or recesses. In this embodiment, the interaction of the one or more projection in the corresponding recess holds the collection bin in its position relative to the body.
- Referring to
FIGS. 2-4 and 12-14 , thebody 14 is pivotable relative to the base 12 about thefirst axis 160 between the upright storage position (FIG. 2 ) and inclined operating position. Thebody 14 is pivoted about thefirst axis 160 by the user using thehandle 34. The base 12 further includes a brushroll 162 (FIG. 4 ) that is rotatable relative to the base 12 about abrushroll axis 164. Thefirst axis 160 is offset from thebrushroll axis 164 is a direction toward theback side 56 of thefloor cleaner 10. Thefirst axis 160 is parallel to thebrushroll axis 164 in the illustrated embodiment. Also, in the illustrated embodiment, thefirst axis 160 extends through thewheels 28 of thebase 12. In some embodiments, thefirst axis 160 is coaxial with the axis about which thewheels 28 rotate. - The
body 14 is also pivotable relative to the base 12 about asecond axis 166 to steer the base 12 as the base 12 moves over thesurface 22. Thebody 14 is pivoted about thesecond axis 166 by the user using thehandle 34. Thefloor cleaner 10 further includes aleft side 168 normal to thefront side 54 and theback side 56 and aright side 170 opposite theleft side 168 and normal to thefront side 54 and theback side 56. The user pivots thebody 14 about thesecond axis 166 to move thebody 14 relative to the base 12 in a first direction toward theright side 170 and in a second direction toward theleft side 168 to steer thefloor cleaner 10 left or right and the user pushes thefloor cleaner 10 along thesurface 22. - The
second axis 166 is perpendicular to thefirst axis 160 and thebrushroll axis 164 in the illustrated embodiment. Thesecond axis 166 extends in a direction from theback side 56 to thefront side 54. Also, the illustratedsecond axis 166 is inclined relative to thesurface 22 when thebody 14 is in the upright storage position such that thesecond axis 166 is at anacute angle 174 relative to thesurface 22 as illustratedFIG. 4 . In the illustrated embodiment, theangle 174 is about 30 degrees. In other embodiments, theangle 174 is in a range from about 25 degrees to about 35 degrees. In yet other embodiments, theangle 174 is in a range from about 15 degrees to about 45 degrees. - The
floor cleaner 10 includes alink 172 that connects thebody 14 to thebase 12. Thelink 172 is pivotably coupled to the base 12 forming thefirst axis 160 along the pivot and thelink 172 coupled to thebody 14 along the steeringaxle 72 forming thesecond axis 166. Thelink 172 functions as a steering couple by constraining thebody 14 and thebase 12 for co-rotation about the steering axis. Thelink 172 includes one ormore slots 173 that engage corresponding protrusions on thebody 14 functioning as stops to limit a pivoting range of movement of thebody 14 about thesecond axis 166. In one embodiment, theslots 173 limit a range of pivoting movement of thebody 14 about the second axis to an angle of about 30 degrees in both the first direction and the second direction. In other embodiments, the range of pivoting movement is in a range from about 25 degrees to about 30 degrees in both directions. In other embodiments, the range of pivoting movement is in a range from about 15 degrees to about 50 degrees in both directions. Thelink 172 or the base 12 further includes at least one stop for limiting pivoting range of movement of thebody 14 about thefirst axis 160. In one embodiment, pivoting range of movement of thehandle axis 46 about thefirst axis 160 is from a position of about 90 degrees from the surface 22 (i.e., an upright storage position) to a position about 30 degrees from thesurface 22 in a direction towards theback side 56 of thefloor cleaner 10. - Accordingly, steering of the base 12 can be controlled by rotating the
body 14 about the steering axis by twisting the handle grip to direct the base 12 in the desired direction. As thebody 14 rotates about the steering axis, co-rotation of thebody 14 with thelink 172 turn the base 12 in plane parallel contact with the floor. Pivoting movement of thelink 172 about theaxis 160 may also help to maintain the base 12 in plane parallel contact with the floor. In the illustrated embodiment, the center ofgravity 58 when thesupply tank 16 is full of cleaning fluid and therecovery tank 18 is empty is located rearward of the steering axis. In one embodiment, the center ofgravity axis 64 is along or rearward of the steering axis. - In the illustrated embodiment the
link 172 is in the form of a yoke. Theyoke 172 defines anopening 176. Asuction conduit 178, which provides fluid communication between thesuction inlet 30 and therecovery tank 18, passes through theopening 176 of theyoke 172. In the illustrated embodiment, theyoke 172 is hollow, and may be divided into two internal chambers, such as aright chamber 177 and aleft chamber 179. A conduit 180 (e.g., plastic tubing) that fluidly couples thesupply tank 16 and thedistribution nozzle 32 extends through theyoke 172 and into thebase 12. In one embodiment, theconduit 180 extends through either theright chamber 177 or theleft chamber 179, andwires 181 for powering components in the base 12 extend through the other of theright chamber 177 or theleft chamber 179. Theyoke 172 may include internal dividers isolating theright chamber 177 from theleft chamber 179 such that thewires 181 remain separated from theconduit 180 passing though the yoke. - As discussed above, the
floor cleaner 10 includes the brushroll oragitator roll 162 adjacent the suction inlet 30 (FIGS. 16 and 17 ). Thebrushroll 162 is rotatable about theaxis 164 to agitate, wipe, scrub, etc. thesurface 22 that is being cleaned. Thefloor cleaner 10 includes a motor 184 (FIG. 12 ) that rotates thebrushroll 162 about theaxis 164. Thebrushroll 162 is operably connected to themotor 184 by a transmission that may include a belt, pulleys, gears, and the like. - Referring to
FIGS. 15-16 , thebrushroll 162 protrudes from thelower end 52 of the base 12 so that the brushroll 162 contacts thesurface 22 being cleaned. In one embodiment, thebrushroll 162 andsuction inlet 30 cooperate to ingest air and debris from thelower end 52. In another embodiment, thebrushroll 162 andsuction inlet 30 cooperate to ingest air and debris from thefront side 54 of thebase 12. Also, although the illustratedfloor cleaner 10 includes only asingle brushroll 162, in other embodiments, thefloor cleaner 10 may include additional brushrolls parallel to thebrushroll 162 and formed from the same or different materials. Thebrushroll 162 has anouter cleaning medium 186 that contacts thesurface 22. The cleaningmedium 186 includes a hydrophobic textile material in one embodiment. - The hydrophobic textile material of the cleaning
medium 186 may include a fine tufted fabric material. In one embodiment, the tufted textile material of the cleaningmedium 186 is formed by a tufted pile of fine hydrophobic fibers, such as hydrophobic nylons, polyesters, polyolefins, or other hydrophobic fibers arranged on thebrushroll 162. The fibers can be made from any hydrophobic materials such as a flouropolymer such as polytetrafluoroethylene in one embodiment. In another embodiment, the fibers are coated with a hydrophobic coating or otherwise treated to be hydrophobic. - The material for the tufted fibers of the hydrophobic textile material of the cleaning
medium 186 has hydrophobicity measured by a contact angle in a range from 90° to 135° in one embodiment. In another embodiment, the hydrophobicity of the tufted material for the cleaningmedium 186 is measured by a contact angle greater than 135°. In yet another embodiment, the material forming the textile material for the cleaningmedium 186 has a hydrophobicity measured by a contact angle in a range from 65° to 100°. - Referring to
FIGS. 16 and 17 , thelower end 52 of the base 12 may include a plurality ofbristles 188, which are tufted bristles in one embodiment. Thebristles 188 are arranged in a row and are generally fixed relative to thebase 12. Thebristles 188 are received in anaperture 190 to attach thebristles 188 to thebase 12. Only one group ofbristles 188 is illustrated in bothFIGS. 16 and 17 , but it should be understood that a group ofbristles 188 would be in each of theapertures 190. In one embodiment, thebristles 188 include a hydrophilic cleaning medium. In some embodiments, thebase 12 includes no hydrophilic cleaning media other than, optionally, the plurality oftufted bristles 188. In yet other embodiments, thebase 12 includes no hydrophilic cleaning media. - Referring to
FIG. 15 , thebase 12 includes abrushroll chamber 194 and abrushroll cover 196 that is removable to access thebrushroll chamber 194 and thebrushroll 162. Thecover 196 is easily removable by the user, and may be removable using one hand, to access thebrushroll 162 for cleaning or replacement. Referring toFIG. 17 , thebase 12 also includes afirst squeegee 224 and asecond squeegee 226 further discussed below. Thefirst squeegee 224 is configured to contact the surface to be cleaned 22 rearward of thebrushroll chamber 194. - As shown in
FIGS. 15, 17, and 19 , thebrushroll chamber 194 includes aforward wall 191 and arear wall 192 having abrushroll chamber outlet 193. In one embodiment, such as illustrated inFIG. 19 , therear wall 191 extends downward toward the surface to be cleaned extending lower than and surrounding thebrushroll chamber outlet 193. In the illustrated embodiment, theforward wall 191 and therear wall 192 are attached to and are removable with thebrushroll cover 196. Thebase 12 includes aseal 195, shown inFIGS. 15 and 17 , at the inlet of thesuction conduit 178. Theseal 195 engages the perimeter of thebrushroll chamber outlet 193 upon installation of thecover 196 on the base 12 to inhibit leakage of water and air. In one embodiment (FIG. 17A ), theforward wall 191 is reduced or omitted such that thebrushroll cover 196′ includes afront edge 197 that is raised from the surface to be cleaned 22 forming a front opening that exposes thebrushroll 162, as further discussed below. In the embodiment ofFIG. 17A , therear wall 192 is attached to and is removable with thebrushroll cover 196. In the embodiments disclosed inFIGS. 17, 17A, and 19 , thefirst squeegee 224 is attached to a lower end of therear wall 192. As shown inFIG. 19 , thefirst squeegee 224 is removable with thebrushroll cover 196. - The
base 12 includes afirst actuator 198 and asecond actuator 200 that are used to remove thecover 196. Thefirst actuator 198 slides in a first direction (represented byarrow 202,FIG. 18 ) to move the actuator 198 from a latched position and to an unlatched position. Thesecond actuator 200 slides in a second direction (represented by arrow 204), directly opposed to the first direction, from a latched position and an unlatched position. That is, thefirst actuator 198 is pushed or pressed by the user in thedirection 202 while thesecond actuator 200 is pushed or pressed by the user in theopposite direction 204. The spacing between theactuators actuators actuators surface 201 of one or both of theactuators ledge 203, the recessedsurface 201 providing clearance and the upper portion orledge 203 of each actuator 198, 200 providing a grip to the user to lift thecover 196 from the base 12 (e.g., with one hand). - Referring to
FIG. 20 , afirst latch 206 is coupled to thefirst actuator 198 and asecond latch 208 is coupled to thesecond actuator 200. When thefirst actuator 198 moves from the latched position to the unlatched position, thefirst latch 206 moves in the same direction from an engaged position with the base 12 (position shown inFIG. 20 ) to a disengaged position with thebase 12. When thesecond actuator 200 moves from the latched position to the unlatched position, thesecond latch 208 moves in the same direction from an engaged position with the base 12 (position shown inFIG. 20 ). As best shown inFIG. 15 , thesecond latch 208 engages a correspondingright retainer 211 in the base 12 in the engaged position. Thefirst latch 206 engages a correspondingleft retainer 213 in the engaged position. With thelatches cover 196 can be removed from thebase 12. In the illustrated embodiment, theactuators latches cover 196 so that theactuators latches cover 196. - With continued reference to
FIG. 20 , a spring or biasingmember 210, which is a coil spring in the illustrated embodiment, is located between theactuators spring 210 may be any spring or resilient member configured to presses theactuators latches latches cam surface 212. The cam surfaces 212 allow thecover 196 to be reattached to thebase 12 without the user having to actuate or squeeze theactuators actuators cover 196 to be reattached to thebase 12. The biasingmember 210 then moves theactuators latches - Referring to
FIGS. 15 and 19 , thedistribution nozzle 32 is attached to thebrushroll cover 196 and thenozzle 32 is removable from the base 12 with thecover 196. Thebase 12 includes afluid coupling 214 having aseal 223 and thecover 196 includes afluid coupling 216 that mates with thefluid coupling 214. A connectingconduit 217 extends through thecover 196 between thefluid coupling 216 and thenozzle 32. Thecouplings cover 196 to be removable from thebase 12 and yet provide fluid communication between thesupply tank 16 and thedistribution nozzle 32 via thesupply conduit 180 when thecover 196 is attached to thebase 12. - Optionally, such as shown in the embodiment illustrated in
FIGS. 15 and 19 , the base includes asecond coupling 219 engaging acorresponding recess 221 in thecover 196. Thesecond coupling 219 is shaped similar to the firstfluid coupling 214 and also includes theseal 223. When a user assembles thecover 196 to the base, force is applied to connect thefluid coupling fluid coupling 214 in the illustrated embodiment is off-center relative to thecover 196 and thelatch actuators second coupling 219 andcorresponding recess 221 is off-center in the opposite direction and configured to provide a coupling resistance similar to the coupling resistance of the firstfluid coupling 214. The approximately symmetrical coupling resistance provided by thefluid coupling coupling 219 inhibit binding and provide a more uniform assembly motion. In the illustrated embodiment, thesecond coupling 219 does not convey any fluid and is a non-fluid coupling. In other embodiments, thesecond coupling 219 may convey fluid to thenozzle 32. - Referring to
FIG. 18 , in the illustrated embodiment, thedistribution nozzle 32 casts aspray pattern 218 of the cleaning fluid from thesupply tank 16 onto thesurface 22. Thespray pattern 218 is sprayed out in front of thefront side 54 of thebase 12. That is, the cleaning fluid is not sprayed under thebrushroll cover 196 where it cannot be seen by the user. Thespray pattern 218 is visible to the user because thespray pattern 218 is out in front of thebase 12. In the illustrated embodiment, the cleaning fluid is sprayed or distributed from thenozzle 32 in response to the user's actuation of the actuator 38 (FIG. 1 ), which is a trigger in the illustrated embodiment. In one embodiment, the actuation of the fluid distribution may be controlled by motion of the cleaner or other automated modes. - With continued reference to
FIG. 18 , thebase 12 includeslights 222 electronically coupled to a printed circuit board (PCB) 225 (FIG. 13 ). In the illustrated embodiment ofFIG. 13 , the PCB X is vertically mounted in the base 12 to provide space efficiency, however thePCB 225 may be positioned in alternative orientations in other embodiments (e.g., horizontal or forward-facing). In one embodiment, thelights 222 are light emitting diodes (LEDs). Thelights 222 are directed toward thefront side 54 of the base 12 to illuminate thespray pattern 218 so that thespray pattern 218 is even more visible to the user. In one embodiment, thelights 222 are LEDs electronically coupled to thePCB 225 and directed toward thefront side 54 of thebase 12. In one embodiment, thelights 222 are water resistant and/or impact resistant. In a specific embodiment, thelights 222 are side-fire LEDs. - The illumination of the
spray pattern 218 by thelights 222 provides visual confirmation to the user that cleaning fluid is being discharged from thenozzle 32. In one embodiment, thelights 222 remain on continuously during operation as headlights for illumination of the working surface. In one such embodiment, the lights are positioned to also illuminate thespray pattern 218 when the spray is actuated. As shown inFIG. 18 , the base may further includeindicator lights 220 visible to the user during operation. - In one embodiment, the indicator lights 220, and optionally, the
lights 222, are turned on in response to actuation of theactuator 38 by the user, which causes the cleaning fluid to flow through thenozzle 32. In some embodiments, thefloor cleaner 10 includes a pump that draws the cleaning fluid out of thesupply tank 16 and pressurizes the cleaning fluid. The indicator lights 220, and optionally, thelights 222, may then be turned on in response to power being supplied to the pump. In other embodiments, thefluid supply conduit 180 between thesupply tank 16 and thenozzle 32 includes a fluid flow sensor. In one such embodiment, when the flow sensor detects fluid flow in theconduit 180, the lights are turned on, and the indicator lights 220, and optionally, thelights 222, are off if there is no flow through theconduit 180. In one alternative, when the flow sensor detects no flow in theconduit 180 after the user actuates theactuator 38, the indicator lights 220 and/or thelights 222 may provide a signal indicating no flow in the conduit, for example if the supply tank were empty or other flow interruption. In yet other embodiments, the indicator lights 220, and optionally, thelights 222, are turned on in response to power being supplied to thevacuum source 20. The indicator lights 220, and optionally, thelights 222, may be any suitable color and the color of the indicator lights 220, and optionally, thelights 222, may change depending on the operational state of thefloor cleaner 10. For example, a first color maybe displayed when power is supplied to thevacuum source 20 and there is no flow of cleaning fluid. A second color may be displayed when there is flow of cleaning fluid through thenozzle 32. - Referring to
FIG. 17 , thebase 12 includes afirst squeegee 224 and asecond squeegee 226. Thefirst squeegee 224 contacts thesurface 22 to be cleaned. When thebase 12 is moved along thesurface 22 to be cleaned in a forward direction (direction ofarrow 228 inFIG. 18 ), thefirst squeegee 224 pushes fluid along the surface in the forward direction, including cleaning fluid, toward thesuction inlet 30. This reduces the amount of fluid that remains on thesurface 22. Thesecond squeegee 226 contacts thebrushroll 162. Thebrushroll 162 rotates about theaxis 164 in the direction ofarrow 230. Thesecond squeegee 226 wipes fluid and debris from thebrushroll 162 and directs the fluid and debris towardsuction conduit 232 that is in fluid communication with thevacuum source 20. The location of thesecond squeegee 226 in combination with thespray distribution 218 of the cleaning fluid from the supply tank forward of thefront side 54 of thebase 12 improves cleaning performance, dry time, and minimizes the amount of fluid and debris that travels back to thesurface 22 as the brushroll rotates back down toward thesurface 22. Thesecond squeegee 226 also reduces air ingress through the gap between thebrushroll cover 196 and thebrushroll 162. - The
first squeegee 224 extends from thelower end 52 of the base 12 between thesuction inlet 30 and theback side 56 of thebase 12. Thesqueegee 224 extend along thesuction inlet 30 adjacent theinlet 30 to wipe fluid toward thesuction inlet 30. Thesqueegee 224 also extends in a direction along thebrushroll axis 164, parallel to thebrushroll axis 164. Thebrushroll 162 extends beyond thelower end 52 of thebase 12 and thesuction inlet 30 is between thefirst squeegee 224 and alocation 234 wherein thebrushroll 162 extends beyond thelower end 52 of thebase 12. In one embodiment, thefirst squeegee 224 is removably coupled to thelower end 52 of the base 12 on a brush bar 189 (FIG. 16 ) with thebristles 188, wherein both thefirst squeegee 224 and thebristles 188 are removable together from the base 12 on thebrush bar 189. - The
second squeegee 226 is located above thefirst squeegee 224 and in thebrushroll chamber 194. Thebrushroll axis 164 is between thelower end 52 of thebase 12 and thesecond squeegee 226. Thesecond squeegee 226 extends along and parallel to thebrushroll axis 164. Thesecond squeegee 226 is attached to thebrushroll cover 196 so that thesecond squeegee 226 is removable from the base 12 with thebrushroll cover 196. In the illustrated embodiment, thesecond squeegee 226 is rearward of thebrushroll axis 164 in a direction from thefront side 54 to theback side 56. In the illustrated embodiment, thesecond squeegee 226 is above thebrushroll axis 164 in a direction from thelower end 52 to theupper end 50. - Optionally, a secondary distribution nozzle 227 (
FIG. 17 ) is positioned under thecover 196 proximate a surface of thebrushroll 162 and rearward of thesecond squeegee 226 in thebrushroll chamber 194. Thesecondary distribution nozzle 227 is configured to wet thebrushroll 162 prior to the brushroll contacting thesurface 22 to be cleaned while simultaneously cleaning thebrushroll 162. Thesecond squeegee 226 is configured to wipe excess liquid from thebrushroll 162. A conduit fluidly couples thesecondary distribution nozzle 227 to thesupply tank 16 similar toconduit 180 ofdistribution nozzle 32. In one embodiment,conduit 180 supplies fluid to both thedistribution nozzle 32 and thesecondary distribution nozzle 227. - Referring to
FIGS. 16 and 17 ,rollers 236 configured to rotate around a roller axis extend from thelower end 52 of the base 12 to support thebase 12 and thefloor cleaner 10 on thesurface 22. Therollers 236 are adjacent thefront side 54 of the base 12 between thefront side 54 of the base and thelocation 234 where thebrushroll 162 extends beyond thelower end 52 of thebase 12. In the illustrated embodiment, therollers 236 are forward of thebrushroll axis 164. In one embodiment, therollers 236 are arcuate along the roller axis, which is parallel to thefirst axis 160. - In one embodiment (
FIG. 17A ), thebrushroll cover 196′ includes afront edge 197 that is raised from the surface to be cleaned 22 forming a front opening that exposes thebrushroll 162, the brushroll extending through the front opening forward of thefront side 54 of the base. The exposed portion of thebrushroll 162 extending beneath thefront edge 197 of thebrushroll cover 196′ is configured for contacting and cleaning low, vertically-oriented surfaces (e.g., baseboards) forward of thefront side 54. Thebrushroll cover 196′ includes thefront edge 197 positioned above thebrushroll axis 164 and rearward of thefront side 54. In this embodiment, thesecond squeegee 226 is positioned relative to thefront edge 197 to inhibit discharge of debris forwardly from beneath thebrushroll cover 196′. -
FIG. 22 illustrates one possible embodiment of thebrushroll 162. In the illustrated embodiment, the brushroll includes a tufted pile formed of fiber covering substantially all of thebrushroll 162. In another embodiment, the tufted pile covers a portion of thebrushroll 162. The fiber may be yarn or may be monofilament fiber. Thebrushroll 162 may include an absorbent material, such as a mop roll. Optionally, thebrushroll 162 may include the hydrophobic properties and features discussed above. Thebrushroll 162 includes a first set offibers 238 and a second set offibers 240. Thefibers FIG. 17 ). In the illustrated embodiment, thefibers 238 have a different color than thefibers 240. The fibers of thefirst set 238 have a diameter that is smaller than the diameter of the fibers of thesecond set 240. In one embodiment, the fiber diameter of the second set of fibers is at least 25% greater than the fiber diameter of the first set of fibers. In another embodiment, the fiber diameter is between 30% and 60% greater than the fiber diameter of the first set of fibers. In one embodiment, the fiber diameter of the second set of fibers is 50% greater than the fiber diameter of the first set of fibers. The fibers of thefirst set 238 have a diameter in a range from about 0.03 millimeters to about 0.08 millimeters. In one embodiment, the first set of fibers have a diameter of about 0.05 millimeters. In one embodiment, the first set of fibers is a different material than the second set of fibers. - In the illustrated embodiment, the first set of fibers extend across a substantial portion of the brushroll and the second set of
fibers 240 wraps around thebrushroll axis 164 in a helical pattern as shown inFIG. 22 . Stated another way, the first set of fibers extend between the helical wraps of the second set of fibers around the brushroll. In one embodiment, the second set offibers 240 wraps around theaxis 164 about 5 to 6 times in the helical pattern. The fibers of the second set offibers 240 have a diameter of at least 0.06 millimeters. In one embodiment, the second set of fibers have a diameter of about 0.10 millimeters The first set offibers 238 with the smaller diameter are more flexible and provide a wiping action on thesurface 22. The second set offibers 240 with the larger diameter are relatively stiff for agitation of the surface and dampen vibration. - In the illustrated embodiment fibers of the first set of
fibers 238 and the fibers of the second set offibers 240 have an equal length. The length of the fibers is in a range from about 5 millimeters to about 15 millimeters in one embodiment. In the illustrated embodiment, the length of the fibers is about 10 millimeters. - In one embodiment, the
brushroll 162 includes asleeve 242 between thespindle 235 and the tufted fiber backing, where the backing is attached to thesleeve 242 and thesleeve 242 is provided over the spindle. Optionally, a second sleeve may be provided, wherein a third set of fibers being tufted on a second backing is attached to the second sleeve, and wherein the first sleeve is removable from the spindle and replaceable with the second sleeve. -
FIGS. 23-26 illustrate a base 12 according to another embodiment. Thebase 12 includes features similar to thebase 12 ofFIGS. 17-21 discussed above and only differences between the bases will be discussed below and similar components have been given the same reference number. Thebase 12 ofFIGS. 23-26 includes thesecond squeegee 226 that contacts thebrushroll 162 in a different position than the second squeegee ofFIGS. 17-21 . Thesecond squeegee 226 ofFIG. 23 is positioned between thefront edge 197 of thebase 12 and thebrushroll axis 164. Thesecond squeegee 226 is also offset from thefront edge 197 in a direction toward thebrushroll 162. Thefront edge 197 is also raised from the surface or floor a distance 303 (FIG. 24 ). In one embodiment the distance is about 7 millimeters, which allows debris to travel under thefront edge 197. In other embodiments, thedistance 303 is in a range from about 4 mm to about 12 mm. Thesecond squeegee 226 also includesslits 302 that extend through thesqueegee 226. In one embodiment, theslits 302 are spaced about one centimeter. In other embodiments, the spacing is in a range from about 0.5 cm to about 3 cm. Theslits 302 provide additional flexibility to thesqueegee 226 and allow individual segments of the squeegee to move or flex relative to adjacent segments. - The
second squeegee 226 contacts an area of thebrushroll 162 after the area first passes by thesuction conduit 232. If any material remains on thebrushroll 162 after first passing by thesuction conduit 232, thesecond squeegee 226 helps to retain the material on thebrushroll 162. By retaining the material on thebrushroll 162, this reduces the chance that the material will be discharged back onto the floor. Rather, the material may be suctioned from thebrushroll 162 while making another pass by thesuction conduit 232. - Referring to
FIGS. 25 and 26 , the base 12 further includes aflow channel 304 on each side of thesuction conduit 232 where theconduit 232 opens into thebrushroll chamber 194. Theflow channel 304 is symmetrical on each side of thesuction conduit 232. Theflow channel 304 is formed by a recess such that atop edge 308 and abottom edge 310 are formed by the recess. As seen inFIG. 24 , thetop edge 308 contacts thebrushroll 162 to facilitate removing liquid and debris from thebrushroll 162 as thebrushroll 162 rotates aboutaxis 230 to direct the liquid and debris into theflow channel 304. In one embodiment, thebottom edge 310 is in close proximity to thebrushroll 162 to reduce the gap between the base 12 and thebrushroll 162 thereby increasing suction in theflow channel 304. This directs airflow through theflow channel 304 and along the entire length of thebrushroll 162. Theflow channel 304 direct debris and liquid toward and into thesuction conduit 232. Referring toFIG. 25 , theflow channel 304 has aheight 314 measured from thebottom edge 310 to thetop edge 308. Theheight 314 increases along thebrushroll 162 in a direction toward thesuction conduit 232. At thesuction conduit 232,height 314 is approximately the same as aheight 316 of thesuction conduit 232. At thesuction conduit 232 in one embodiment, theheight 314 is approximately the same as aheight 316 of an upper portion of thesuction conduit 232. -
FIGS. 27-31 illustrate a base 12 according to another embodiment. Thebase 12 includes features similar to thebases 12 ofFIGS. 17-21 andFIGS. 23-26 discussed above and only differences between the bases will be discussed below and similar components have been given the same reference number. Thebase 12 ofFIGS. 27-31 includes athird squeegee 229 that extends from thelower end 52 of thebase 12. Thethird squeegee 229 also extends along thesuction inlet 30 adjacent theinlet 30 to wipe fluid toward thesuction inlet 30. Thethird squeegee 229 also extends in a direction along thebrushroll axis 164, parallel to thebrushroll axis 164. Thethird squeegee 229 is also parallel to thefirst squeegee 224. Thefirst squeegee 224 is coupled to thebrushroll cover 196 so that thefirst squeegee 224 is removable from the base 12 with thecover 196 and thesecond squeegee 226 while thethird squeegee 229 remains attached to the base 12 as shown inFIG. 31 . - Various features and advantages of the invention are set forth in the following claims.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/551,501 US20200060495A1 (en) | 2018-08-27 | 2019-08-26 | Floor cleaner |
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US201862723345P | 2018-08-27 | 2018-08-27 | |
US201962808527P | 2019-02-21 | 2019-02-21 | |
US201962824043P | 2019-03-26 | 2019-03-26 | |
US16/551,501 US20200060495A1 (en) | 2018-08-27 | 2019-08-26 | Floor cleaner |
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US20200060495A1 true US20200060495A1 (en) | 2020-02-27 |
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US16/551,501 Abandoned US20200060495A1 (en) | 2018-08-27 | 2019-08-26 | Floor cleaner |
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US (1) | US20200060495A1 (en) |
EP (1) | EP3787451A1 (en) |
CN (1) | CN112351716A (en) |
AU (2) | AU2019327393B2 (en) |
WO (1) | WO2020046832A1 (en) |
Cited By (4)
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US20210235956A1 (en) * | 2020-02-05 | 2021-08-05 | Omron Corporation | Floor surface cleaning apparatus |
CN114376465A (en) * | 2021-09-01 | 2022-04-22 | 北京顺造科技有限公司 | Surface cleaning device and cleaning base |
WO2023073331A1 (en) * | 2021-10-29 | 2023-05-04 | Numatic International Limited | Floor treatment machine |
GB2618791A (en) * | 2022-05-16 | 2023-11-22 | Techtronic Cordless Gp | A cleaner head for a cleaning appliance |
Families Citing this family (2)
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CN113647876A (en) * | 2021-08-26 | 2021-11-16 | 北京石头世纪科技股份有限公司 | Cleaning device's sewage case and cleaning device |
CN114767003A (en) * | 2022-03-16 | 2022-07-22 | 苏州诚智信电器科技有限公司 | Sweeping and mopping integrated rolling brush assembly |
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- 2019-08-26 EP EP19765600.2A patent/EP3787451A1/en not_active Withdrawn
- 2019-08-26 WO PCT/US2019/048178 patent/WO2020046832A1/en unknown
- 2019-08-26 CN CN201980044200.8A patent/CN112351716A/en active Pending
- 2019-08-26 US US16/551,501 patent/US20200060495A1/en not_active Abandoned
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2022
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Also Published As
Publication number | Publication date |
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AU2019327393A8 (en) | 2021-01-07 |
AU2019327393B2 (en) | 2022-07-21 |
WO2020046832A1 (en) | 2020-03-05 |
EP3787451A1 (en) | 2021-03-10 |
AU2022252692A1 (en) | 2022-11-03 |
CN112351716A (en) | 2021-02-09 |
AU2019327393A1 (en) | 2020-12-24 |
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