Wet dry appliance
The cleaning device addresses the challenge of removing difficult debris by incorporating a dual-mode operation with a rotatable agitator and fluid distribution system, enhancing cleaning effectiveness.
Patent Information
- Application Number
- PCT/CN2025/114148
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-13
- Filing Date
- 2025-08-12
- Publication Date
- 2026-02-19
AI Technical Summary
Conventional cleaning devices struggle with effectively removing difficult-to-remove debris, requiring additional targeted fluid applications beyond normal fluid supply.
A cleaning device operable in both dry and wet modes, featuring a movable agitator with rotatable mounts, fluid distributors, and suction inlets, along with optional fluid dispensers and light sources for targeted cleaning.
Enhances the removal of stubborn debris by allowing targeted fluid application and agitation, improving cleaning efficiency in both wet and dry modes.
Smart Images

Figure CN2025114148_19022026_PF_FP_ABST
Abstract
Description
WET DRY APPLIANCECROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This patent application claims the benefit under 35 U.S.C. § 119 of U.S. Provisional Application No. 63 / 682,625 filed on August 13, 2024, entitled “WET / DRY CLEANER SYSTEMS AND COMPONENTS THEREOF, “and U.S. Provisional Application No. 63 / 682,629 filed on August 13, 2024, entitled “WET / DRY CLEANING DEVICE AGITATOR, ” the entire contents of which are hereby incorporated herein by references in their entireties.FIELD
[0002] A cleaning device operable in wet and dry modes is provided.BACKGROUND
[0003] Conventional cleaning devices, such as dry vacuums and wet vacuums, perform cleaning operations using suction to take in debris and waste. Dry vacuums operate through the use of suction and may employ a brushroll or agitator to assist in freeing the debris and waste from a surface. Wet vacuums operate through the use of suction and a brushroll or pad, but they also supply fluid to the to-be-cleaned surface in order to assist in removal of debris and waste. For sticky and / or difficult-to-remove debris, additional, targeted applications of fluid beyond the normal application of fluid may need to be supplied to the surface in order to effectively remove the debris.
[0004] Accordingly, there remains a need to provide a more targeted cleaning method to remove difficult-to-remove debris from surfaces.SUMMARY
[0005] A cleaning device operable in dry and wet cleaning modes is provided. Related apparatuses and techniques are also provided.
[0006] In one embodiment, a cleaning device includes an upright body and a cleaning head coupled to the upright body. The cleaning head is movable across a surface to be cleaned and defines an agitator chamber therein. An agitator is disposed within the agitator chamber. A cover is removably coupled to the cleaning head to at least partially define the agitator chamber. The agitator is coupled to a first mounting point located on the cleaning head and to a second mounting point located on the cover. One of the first mounting point and the second mounting point can rotatably drive the agitator to rotate about a longitudinal axis thereof and to agitate the surface during a cleaning operation.
[0007] One or more of the following features can be included in any feasible combination. For example, the agitator can include a brushroll having a central core surrounded by one or more of a microfiber material and a bristle material. The central core is surrounded by both the microfiber material and the bristle material. The brushroll comprises first and second deadzones on respective first and second ends thereof, the first and second deadzones each being absent of bristle material.
[0008] In some examples, the cleaning device further includes a fluid supply tank removably coupled to one of the upright body and the cleaning head, and one or more fluid distributors disposed on the cleaning head and fluidly coupled to the fluid supply tank. The one or more fluid distributors can emit fluid onto at least one of the surface to be cleaned, the agitator, and the cover. The one or more fluid distributors can include a fluid manifold that can deposit fluid directly onto the agitator. The one or more fluid distributors can include a spray nozzle disposed on top of the cleaning head that can emit fluid onto a target region in front of the cleaning head. The cleaning head can include at least one light source, such as a light-emitting diode, that can emit light to illuminate the target region.
[0009] In some examples, the cleaning device further includes a suction inlet disposed in a rear of the agitator chamber, and at least one fluid dispenser disposed in the agitator chamber above the suction inlet. The at least one fluid dispenser can emit fluid directly onto the agitator. The cleaning device can further include a wiper disposed between the suction inlet and the at least one fluid dispenser. The wiper extends into the agitator and evenly distribute fluids supplied to the agitator by the at least one fluid dispenser as the agitator is rotatably driven. The cleaning device can further include a comb disposed between the suction inlet and the at least one fluid dispenser.
[0010] In another embodiment, a cleaning device includes an upright body and a cleaning head coupled to the upright body. The cleaning head defines an agitator chamber therein and includes: a housing at least partially defining the agitator chamber, an arm extending from the housing, the arm including a first rotatable mount extending therefrom into the agitator chamber, a cover removably coupled to the housing and at least partially defining a portion of the agitator chamber, the cover including a second rotatable mount extending therefrom into the agitator chamber, and an agitator coupled to each of the first and second rotatable mounts that can rotate therewith to agitate a surface. One of the first and second rotatable mounts is operatively coupled to a motor such that it can be driven by the motor to rotationally drive the agitator
[0011] One or more of the following features can be included in any feasible combination. For example, the cover forms a top, a front, and a side of the agitator chamber. The second rotatable mount is disposed at a side of the agitator chamber. In some examples, the cleaning device further includes an actuator disposed on the housing that can decouple the cover from the housing upon actuation. Actuation of the actuator can laterally eject the cover from the housing in a direction substantially parallel to a rotational axis of the agitator.
[0012] In some examples, an outer side surface of the cleaning head is within a given distance (e.g., 3 mm) of the agitator when the agitator is mounted to the first and second rotatable mounts. In some examples, the agitator includes a brushroll having a central core surrounded by one or more of a microfiber material and a bristle material. The central core can be surrounded by both the microfiber material and the bristle material. The brushroll can include first and second deadzones on respective first and second ends thereof, the first and second deadzones each being absent of bristle material.
[0013] In another embodiment, a cleaning device includes an upright body and a cleaning head operably coupled to the upright body, the cleaning head defining an agitator chamber therein. The cleaning head includes a housing and an agitator cover coupled to the housing, the agitator cover at least partially defining top, front, and side surfaces of the cleaning head. An agitator is disposed within the agitator chamber and can operably couple to the housing and to the agitator cover. The agitator can rotate about a longitudinal axis thereof during a cleaning operation. The agitator includes a plurality of bristles on an outer surface thereof, wherein the plurality of bristles include at least one bristle that can extend past an outermost surface of the cleaning head when the agitator is rotated during a cleaning operation.
[0014] One or more of the following features can be included in any feasible combination. For example, the agitator cover can have at least one side surface that extends rearward beyond the agitator chamber and overlaps with a side of the housing. The at least one side surface can include a depression extending into the side of the housing. The depression can increase structural support of the agitator cover.
[0015] The depression can have an elongate ovular shape. In some examples, the agitator cover can define a lateral gap in a sidewall thereof, the outermost surface of the cleaning head being an outermost surface of the sidewall. The at least one bristle can extend through the lateral gap beyond the outermost surface of the sidewall. An inner surface of the sidewall can include an agitator mount, and the agitator can operably couple to the agitator cover via the agitator mount.
[0016] In some examples, the agitator can include a mount end and a driven end each disposed along the longitudinal axis thereof, and the mount end can operably couple to the agitator cover. The mount end can be translatable along the longitudinal axis under tension relative to the driven end. The mount end can be translatable between a first position in which the mount end extends laterally past the at least one bristle and a second position in which the mount end is recessed within the agitator. The agitator can operably couple with the agitator cover when the mount end is in the second position.
[0017] In another embodiment, a cleaning device includes an upright body including a suction source, and a head operably coupled to the upright body. The head is movable across a surface to be cleaned and defines an agitator chamber. The head includes a suction nozzle in fluid communication with the suction source and that can intake fluid and debris, an agitator disposed in the agitator chamber and that can agitate the surface to be cleaned, a removable cover removably coupled to the head and at least partially defining the agitator chamber, a first fluid dispenser disposed in the agitator chamber separate from the removable cover and that can emit fluid onto the agitator, and a second fluid dispenser disposed on the head and that can emit fluid onto a target region located forward of the head.
[0018] One or more of the following features can be included in any feasible combination. For example, the agitator can include a brushroll configured to rotate around a brushroll axis. The first fluid dispenser can include a drip bar extending along the brushroll that can emit fluid onto an outer surface of the brushroll. In some examples, the brushroll includes a first end region, a second end region, and a middle region disposed between the first and second end regions; a microfiber material disposed on each of the first and second end regions and the middle region; and a bristle material disposed on the middle region, wherein the first and second end regions are devoid of bristles.
[0019] In some examples, the head further includes a light source, such as an LED, that can direct light onto the target region forward of the cleaning head. In some examples, the second fluid dispenser is separate from the removable cover such that the removable cover is removable without removal of the second fluid dispenser. In some examples, the second fluid dispenser is disposed on the removable cover such that the second fluid dispenser is removable with the removable cover. The removable cover defines at least a portion of a sidewall of the cleaning head. In some examples, the agitator includes a brushroll, and the brushroll is rotatably mounted to the removable cover at a first end thereof.
[0020] In another embodiment, an agitator includes a first core rotatable about a first rotational axis; a second core rotatable about a second rotational axis, the second core being offset from the first core; and a cleaning material sleeve disposed around each of the first core and the second core. At least one of the first core and the second core is rotatable to drive the cleaning material sleeve to rotate about the first core and the second core. At least one of the first core and the second core is pivotable to reduce tension in the cleaning material sleeve so that it is removable from the first core and the second core.
[0021] In another embodiment, an agitator includes an elongate core movable between an extended position and a collapsed position, and a cleaning material sleeve disposed around an exterior of the elongate core. The cleaning material sleeve is tensioned and secured to the elongate core when the elongate core is in the extended position. The cleaning material sleeve is loose and unsecured from the elongate core when the elongate core is in the collapsed position.
[0022] In another embodiment, a cleaning device includes an upright body with a fluid supply tank that can store fluid. A cleaning head is coupled to the upright body and can move across a surface to be cleaned. The cleaning head includes at least one light that can emit a beam onto a target region of the surface located in front of the cleaning head, and at least one nozzle that can emit fluid from the fluid supply tank onto the target region.
[0023] In another embodiment, the cleaning device includes an upright body with a fluid supply tank that can store fluid. A cleaning head is coupled to the upright body and can move across a surface to be cleaned. The cleaning head includes at least one nozzle that can emit fluid from the fluid supply tank onto the target region, and a fluid line within the cleaning head that can transport fluid from the fluid supply tank to the nozzle. A heating element is positioned proximate the fluid line inside the cleaning head and can heat the fluid as it flows through the fluid line prior to the fluid being emitted from the nozzle.
[0024] In another embodiment, a cleaning device includes a body and a cleaning head operably coupled to the body, with the cleaning head defining an agitator chamber therein. An agitator is disposed within the chamber and includes a driven end and a mount end opposite the driven end. The driven end can be operably coupled to a driver located in either the body or the cleaning head, which can rotate the agitator about its longitudinal axis. The mount end is movable under tension along the longitudinal axis relative to the driven end.
[0025] One or more of the following features can be included in any feasible combination. For example, the agitator can include a spring that biases the mount end away from the driven end. The mount end can include a touchpoint at its end that can remain free of fluid, dirt, and debris during cleaning operations. The agitator can be a brushroll having a central core surrounded by one or both of a microfiber material and a bristle material. In some examples, the central core can surrounded by both materials. Additionally, the brushroll can include first and second deadzones on respective first and second outer regions thereof, each of which is free of bristle material.
[0026] In another embodiment, a cleaning device includes a body and a cleaning head operably coupled to the body, with the cleaning head defining an agitator chamber therein. An agitator is disposed within the chamber and can rotate about its longitudinal axis to agitate a surface to be cleaned. The agitator includes a first end along the longitudinal axis that can couple with a drive element in the cleaning head, and a second end that can couple with a mount on the cleaning head. The drive element can apply torque to the first end to rotate the agitator, while the second end is movable under tension along the longitudinal axis relative to the first end.
[0027] One or more of the following features can be included in any feasible combination. For example, the agitator can include a spring that biases the second end away from the first end. The second end can include a touchpoint that can remain free of fluid, dirt, and debris during cleaning. The agitator can be a brushroll with a central core surrounded by one or both of a microfiber material and a bristle material. In some examples, the central core can be surrounded by both materials. The brushroll can include first and second deadzones on respective outer regions thereof, each of which is free of bristle material. In some examples, an actuator is disposed on a sidewall of the cleaning head, the actuator being actuable to simultaneously cause a removable cover to disengage from the cleaning head and from the second end of the agitator.
[0028] In another embodiment, a method for removing the agitator from the cleaning device includes actuating an actuator on the device to simultaneously cause a removable cover to disconnect and translate laterally in a first direction, disengage the agitator at its first end, and allow the first end of the agitator to extend beyond the agitator body under tension. The agitator can then be moved via the extended first end in the first direction to fully disengage the agitator from a drive element of the cleaning device.
[0029] One or more of the following features can be included in any feasible combination. For example, the cleaning head can define an agitator chamber therein, the agitator being removably engaged within the agitator chamber. The actuator can comprise a button disposed on the cleaning head. Actuating the actuator can comprise pushing the button in a second direction opposite the first direction. The removable cover can comprise at least one mount configured to support the agitator during rotation thereof. The first end of the agitator can include a spring-loaded touchpoint. A second end of the agitator can include a driven end that can removably engage with the drive element of the cleaning device. In some examples, the drive element can be a motor.
[0030] In another embodiment, a method for attaching the agitator to the cleaning device includes moving an agitator in a first direction to engage a first end of the agitator with a drive element of a cleaning device, the agitator being disposable within an agitator chamber of the cleaning device. The cover can be translated in a first direction to simultaneously cause the cover to engage with a second end of the agitator opposite the first end, the second end being compressable in the first direction upon engagement with the cover, and the cover to engage with with a cleaning head of the cleaning device, the cover and cleaning head at least partially defining the agitator chamber. The first direction can be a lateral direction relative to the cleaning head.
[0031] One or more of the following features can be included in any feasible combination. For example, the first end of the agitator can include a driven end that can engage with the drive element of the cleaning device. In some examples, the drive element can be a motor. The second end of the agitator can include a spring-loaded touchpoint compressable under force in the first direction and extendable under tension in a second direction opposite the first direction. The cover can include at least one mount that supports the second end of the agitator during rotation thereof.
[0032] In another embodiment, a cleaning device includes a suction source that can draw in waste and debris into an upright cleaning body, and an actuator that can control one or more operations during a cleaning process. The cleaning device includes at least one fluid nozzle that can emit fluid onto a target region located in front of the cleaning device, a light that can highlight the target region, and an agitator that can rotate about its longitudinal axis to agitate a surface to be cleaned. The actuator is movable between three stages: a first stage in which the light is activated to highlight the target region; a second stage in which the fluid nozzle emits fluid onto the target region, the suction source operates to draw in waste into the upright cleaning body, and the agitator rotates at a first speed; and a third stage in which the suction source is inoperable and the agitator rotates at a second, higher speed.
[0033] One or more of the following features can be included in any feasible combination. For example, the actuator can include a trigger disposed on an upright handle. The trigger can be a three-stage trigger that can be depressed to three different depths corresponding to the three stages of operation. The cleaning device can also include a cleaning head that can move across a surface to be cleaned, with the light either centrally located on the top of the cleaning head or offset to one side.
[0034] In some examples, the cleaning head can define an agitator chamber in which the agitator is disposed, and can also include a spray bar within the chamber that can emit fluid directly onto the agitator. The cleaning head can include a removable cover that at least partially defines the agitator chamber. The removable cover can include one or more mounts that support the agitator during rotation, and the spray bar can be separate from the removable cover.
[0035] In another embodiment, a cleaning device includes an upright body and a cleaning head operably coupled to the upright body. The cleaning head can move across a surface to be cleaned in both a forward and a backward direction. The cleaning head includes a brushroll disposed therein that can rotate during a cleaning operation to agitate the surface, and a reversible squeegee that extends from the cleaning head. The reversible squeegee includes a flexible deforming portion and a scraping portion attached to the flexible deforming portion. The scraping portion can fold underneath the flexible deforming portion when the cleaning head moves forward, and can extend away from the cleaning head when moving backward.
[0036] One or more of the following features can be included in any feasible combination. For example, the scraping portion includes a plurality of ribs that can contact the surface during backward movement. The plurality of ribs can include three evenly spaced ribs, with a first rib at the left outer edge of the scraping portion, a second rib at the right outer edge, and a third rib centered between them. A support rod can be coupled to each rib to improve the rigidity of the scraping portion. The reversible squeegee can be positioned beneath a suction inlet of the cleaning head and can remain spaced from the brushroll during both forward and backward movement of the cleaning head.
[0037] In another embodiment, a reversible squeegee for a cleaning device includes a flexible deforming portion that can attach to the cleaning device, and a scraping portion attached to the flexible deforming portion. The scraping portion can contact and scrape a surface to be cleaned. When the cleaning device moves in a first direction, the scraping portion can fold underneath the flexible deforming portion toward the cleaning device and contact the surface with a first region. When the device moves in a second, opposite direction, the scraping portion can unfold and extend away from the cleaning device to contact the surface with a second, different region.
[0038] One or more of the following features can be included in any feasible combination. For example, the scraping portion can include a plurality of ribs that can contact the surface during movement in the second direction. The plurality of ribs can include three evenly spaced ribs, with a first rib at the left outer edge of the scraping portion, a second rib at the right outer edge, and a third rib centered between them. A support rod can be coupled to each rib to improve the rigidity of the scraping portion. The reversible squeegee can be positioned beneath a suction inlet of the cleaning device and can remain spaced from a brushroll attached to the cleaning device during movement in both the first and second directions.
[0039] The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the description below. Other features and advantages of the subject matter described herein will be apparent from the description and drawings, and from the claims.DESCRIPTION OF DRAWINGS
[0040] These and other features will be more readily understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
[0041] FIG. 1A is a front perspective view of one embodiment of a cleaning device;
[0042] FIG. 1B is a cross-sectional side view of the cleaning device of FIG. 1A;
[0043] FIG. 2A is a front perspective view of a head assembly of a cleaning device;
[0044] FIG. 2B is a front perspective view of the head assembly of FIG. 2A, having a brushroll removed and showing a right support structure;
[0045] FIG. 2C is a front perspective view of the head assembly of FIG. 2A, having a brushroll removed and showing a left support structure;
[0046] FIG. 2D is a front perspective view of the brushroll cover of the head assembly of FIG. 2A;
[0047] FIG. 2E is a front perspective view of a brushroll compatible with the head assembly of FIG. 2A;
[0048] FIG. 2F is a front cross-sectional view of a brushroll having deadzones;
[0049] FIGS. 3A-3C are front perspective views of a head assembly having external fluid connections;
[0050] FIG. 3D is a top perspective view of a head assembly having internal fluid connections;
[0051] FIGS. 3E-3F are pictures of a flexible guide and / or squeegee of a head assembly;
[0052] FIGS. 3G-3H are bottom perspective views of a bottom access hatch of a head assembly;
[0053] FIG. 4A is a perspective view of a brushroll cover of a head assembly;
[0054] FIG. 4B is a front view of a left sidewall of the brushroll cover of FIG. 4A;
[0055] FIG. 4C is a schematic of how the brushroll cover of FIG. 4A can be removed to access a brushroll;
[0056] FIG. 4D is another schematic of how a brushroll cover can be removed to access a brushroll;
[0057] FIG. 4E is a perspective view of a head assembly having an actuator for removing a brushroll and brushroll cover from the head assembly;
[0058] FIG. 4F is a perspective view of a sidewall of a brushroll cover of a head assembly;
[0059] FIG. 4G is a front perspective view of a brushroll housed within a head assembly;
[0060] FIG. 4H is a bottom view of a brushroll housed within a head assembly;
[0061] FIG. 5A is a front perspective view of a head assembly;
[0062] FIG. 5B is a collection of various examples of illumination patterns that can be projected by the head assembly of FIG. 5A;
[0063] FIG. 5C is a cross-sectional view of a spray trigger of a handle of a cleaning device, the spray trigger being fluidly connected to the spray nozzle outlet of FIG. 5A;
[0064] FIG. 6A is a perspective view of one embodiment of a fluid manifold;
[0065] FIG. 6B is a side view of a fluid outlet of the fluid manifold of FIG. 6A;
[0066] FIG. 6C is a flow diagram of fluid flow across an angled surface of the fluid manifold of FIG. 6A;
[0067] FIG. 7A is a perspective view of another embodiment of a fluid manifold;
[0068] FIG. 7B is a side view of a fluid outlet of the fluid manifold of FIG. 7A;
[0069] FIG. 7C is a flow diagram of fluid flow across an angled surface of the fluid manifold of FIG. 7A;
[0070] FIG. 8A is a perspective view of an additional embodiment of a fluid manifold;
[0071] FIG. 8B is a side view of a fluid outlet of the fluid manifold of FIG. 8A;
[0072] FIG. 8C a flow diagram of fluid flow across an angled surface of the fluid manifold of FIG. 8A;
[0073] FIG. 9A is a side view of an embodiment of a brushroll cover forming a fluid manifold;
[0074] FIG. 9B is a bottom perspective view of the brushroll cover of FIG. 9A;
[0075] FIG. 9C is a detail view of nozzles compatible with the brushroll cover of FIG. 9A;
[0076] FIG. 10A is a side view of a squeegee moving in a forward direction;
[0077] FIG. 10B is a side view of the squeegee of FIG. 10A moving in a backward direction;
[0078] FIG. 10C is a side view of the squeegee of FIG. 10A in a neutral position;
[0079] FIG. 10D is a bottom perspective view of the squeegee of FIG. 10A;
[0080] FIG. 10E is a top perspective view of the squeegee of FIG. 10A;
[0081] FIG. 10F is a side view of a head assembly moving in a backward direction and thereby deforming the squeegee;
[0082] FIG. 10G is a side view of the head assembly of FIG. 10F with the squeegee in a neutral position;
[0083] FIG. 11 is a perspective of a cleaning device with an infinity roll;
[0084] FIG. 12 is a side view of a cleaning roll tensioner in an open state;
[0085] FIG. 13 is a side view of the cleaning roll tensioner of FIG. 12 in a closed state;
[0086] FIG. 14 is a front view of a cleaning device with a pivoting infinity agitator;
[0087] FIG. 15 is a front view of the cleaning device of FIG. 14 with the infinity agitator in a pivoted state;
[0088] FIG. 16 is a front view of the cleaning device of FIG. 14 with a cleaning pad of the infinity agitator removed from a cassette;
[0089] FIG. 17 is a top perspective view of a cleaning device with a pivoting inner agitator core positioned in an upwardly pivoted state;
[0090] FIG. 18 is a top view of a cleaning device with two inner agitator cores;
[0091] FIG. 19 is a top view of the cleaning device of FIG. 18 with the two inner agitator cores in a pivoted state;
[0092] FIG. 20 is a top view of a cleaning device with a collapsible cassette;
[0093] FIG. 21 is a top view of the cleaning device of FIG. 20 with the collapsible cassette removed;
[0094] FIG. 22 is a top view of the collapsible cassette associated with the cleaning device of FIG. 20 with the collapsible cassette in a collapsed state and a cleaning pad removed from the collapsible cassette;
[0095] FIG. 23 is a diagram of an infinity agitator with an expandable cassette in different states of installed, opening, and open;
[0096] FIG. 24 is a front view of an infinity agitator variation with a pivoting cassette in an installed state;
[0097] FIG. 25 is a front view of the variation of FIG. 24 in a pivoted state;
[0098] FIG. 26 is a front view of the variation of FIG. 24 in which the pivoting cassette is removed from a cleaning device;
[0099] FIG. 27 is a front view of the pivoting cassette from the variation of FIG. 24 in which a cleaning pad is removed from the pivoting cassette;
[0100] FIG. 28 is a perspective of a cleaning device capable of selectively delivering targeted fluid to a cleaning surface;
[0101] FIG. 29 is a schematic view of a heated fluid sprayer;
[0102] FIG. 30 is a top view of one embodiment of a mechanism to drive fluid pulses via a cleaning device;
[0103] FIG. 31 is a top view of another embodiment of a mechanism to drive fluid pulses via a cleaning device;
[0104] FIG. 32 is a front perspective view of one embodiment of a cleaning device with an activated target system;
[0105] FIG. 33 is a front perspective view of another embodiment of a cleaning device with an activated target system;
[0106] FIG. 34 is a perspective view of a head of a cleaning system featuring a heat source for heating fluid prior to emission;
[0107] FIG. 35 is a perspective view of a cleaning device with insets of components thereof; and
[0108] FIG. 36 is a perspective view of a dock for a cleaning device.
[0109] It is noted that the drawings are not necessarily to scale. The drawings are intended to depict only typical aspects of the subject matter disclosed herein, and therefore should not be considered as limiting the scope of the disclosure.DETAILED DESCRIPTION
[0110] Certain exemplary embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the devices and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those skilled in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.
[0111] Further, in the present disclosure, like-named components of the embodiments generally have similar features, and thus within a particular embodiment each feature of each like-named component is not necessarily fully elaborated upon. Additionally, to the extent that linear or circular dimensions are used in the description of the disclosed systems, devices, and methods, such dimensions are not intended to limit the types of shapes that can be used in conjunction with such systems, devices, and methods. A person skilled in the art will recognize that an equivalent to such linear and circular dimensions can easily be determined for any geometric shape.
[0112] A cleaning device is provided that includes fluid delivery and recovery systems that can be operated in combination with, or in place of, traditional vacuum modes in order to improve cleaning capabilities of the device. In certain exemplary embodiments, the cleaning device includes features that remove difficult-to-remove debris from surfaces. For example, the cleaning device can include nozzles, targeting lights, and / or spray handle assemblies that allow for targeted application of cleaning fluid onto the surface.
[0113] With reference now to FIGS. 1A-1B, an exemplary embodiment of a cleaning device 10 is shown. The illustrated cleaning device 10 generally includes a head assembly 100, a body assembly 200 coupled to the head assembly 100, a handle assembly 300 coupled to the body assembly 200, and a vacuum assembly (not shown) that is disposed within the head and body assemblies 100, 200. As will be explained in detail below, the device 10 also includes fluid delivery and fluid recovery assemblies. In the illustrated embodiment, the handle assembly 300 includes a handle 310 and a stem 320, and the body assembly 200 includes a body housing 210 coupled to the stem 320. The head assembly 100 can be coupled to the body housing 210 opposite the stem 320. The head assembly 100 can include a head housing 110, wheels rotatably coupled to the head housing 110 and configured to allow the cleaning device 10 to roll along a surface, and a brushroll 150 (also referred to herein as an “agitator” ) disposed in the head assembly 100 and configured to rotate during operation of the cleaning device 10.
[0114] The cleaning device 10 can operate in both wet and dry cleaning modes. Dry cleaning modes generally include modes related to traditional vacuuming operations, such as vacuuming on hard surfaces or on softer surfaces, such as carpet. Dry cleaning modes rely on suction to take dirt and debris into the cleaning device 10 for convenient disposal. In some dry cleaning modes, a brushroll can rotate to agitate debris and waste on a cleaning surface. The brushroll can loosen the dirt and debris while simultaneously directing it toward a suction intake of a cleaning device 10.In other dry cleaning modes, a brushroll does not rotate, and instead, suction is relied on alone to force dirt and debris into a cleaning device 10. Wet cleaning modes can generally include a cleaning device 10 supplying fluid either directly or indirectly to a surface to aid in cleaning. The supplied fluid can act to loosen dirt and debris stuck to the surface, and the dirtied fluid can be taken into the cleaning device 10 through suction or other means. In some wet cleaning modes, like some dry cleaning modes described above, a brushroll can further assist in loosening dirt and debris off the surface and directing it toward a suction intake. In these wet cleaning modes, the fluid can be supplied directly to the brushroll in order to simultaneously apply the fluid to the surface while agitating the dirt and debris found on the surface. In other wet cleaning modes, fluid can be supplied directly to the surface and the brushroll can agitate the wetted surface. In still other modes, fluid can be supplied directly to the surface and a brushroll can remain stationary, thereby cleaning the surface with fluid and suction alone.
[0115] The wet and dry cleaning modes can rely on a vacuum assembly (not shown) . In an exemplary embodiment, the vacuum assembly 400 is disposed within the head and body assemblies 100, 200 and is capable of taking in fluid, dirt, debris, and other waste through suction and storing it within the cleaning device 10. In some embodiments, the vacuum assembly 400 can include a motor and a motor fan. The motor and motor fan can be entirely contained in a motor housing disposed within the body assembly 200. As will be discussed in more detail below, hosing can be coupled to the motor fan and can be disposed to run through the body assembly 200 to the head assembly 100 to allow the motor to generate a suction force to draw waste into the device 10. Waste taken in by the vacuum assembly through the hosing can be deposited into a recovery tank of the fluid recovery assembly removably disposed within the body assembly 200.
[0116] The cleaning device 10 can further rely on a fluid delivery assembly (not shown) and a fluid recovery assembly (not shown) . The fluid delivery and recovery assemblies enable the cleaning device 10 to spray fluid onto a targeted area to mix with waste in the area, then suck in the mixture of liquid waste and solid waste to remove it from the surface. In some embodiments, the fluid delivery assembly can include a fluid supply tank capable of supplying fluid to an area to be cleaned in order to aid in a cleaning process. In some embodiments, the fluid recovery assembly can include a fluid recovery tank capable of intaking waste from the area, including both liquid and solid waste. When entering a wet cleaning mode, fluid (e.g., water and / or detergent) from the fluid supply tank can first be supplied to the surface via the head assembly 100 of the cleaning device 10. The fluid can be mixed with dirt and debris, and the waste can be drawn back into the cleaning device 10 via the head assembly 100 with suction generated by the vacuum motor. Waste can then be separated into different waste types (e.g., fluid, debris, etc. ) and deposited in the recovery tank. In other embodiments, such as when entering a dry cleaning mode, the fluid supply step may be omitted, and the fluid delivery assembly and / or fluid recovery assembly may be unused.
[0117] In both wet and dry cleaning modes, the head assembly 100 of the cleaning device 10 can intake waste from the target area. FIGS. 2A-2B depict the head assembly 100 in more detail. As shown, the head assembly 100 includes a head housing 110 and one or more sets of wheels 114L, 114R disposed on the head housing 110, which aid in movement of the cleaning device 10. For example, wheels 114L, 114R are rotatably coupled to the head housing 110 and configured to allow the cleaning device 10 to roll along a surface. FIG. 2A shows the head assembly 100 with a brushroll cover 140 installed over an upper front portion of the head assembly 100 that contains a brushroll 150. FIGS. 2B-2C show the head assembly 100 with the brushroll cover 140 and the corresponding brushroll 150 removed, thereby providing a more-detailed view of the inner form of the head housing 110. On an upper portion of the front side 110a of the head housing 110 is a cover support 116, which can removably receive a brushroll cover 140. In some embodiments, the cover support 116 can include one or more latches (not pictured) that selective engage with the brushroll cover 140 to attach the brushroll cover 140 to the head housing 110. In some embodiments, the cover support 116 includes a ledge configured to receive and support a portion of the brushroll cover 140. Rearward of the cover support 116, located on the top side 110b of the head housing 110, is a cover button 118, which can be actuated to release the brush cover 140 mounted to the head housing 110 to enable removal of the brushroll cover 140. As shown in FIGS. 2B-2C, the cover button 118 can be disposed on the top side 110b such that it is off-center from a central axis of the head housing 110. However, it is to be understood that the cover button 118 can be positioned in any suitable location on the head housing 110 and is not limited to the top side 110b of the head housing 110. Additional examples of actuators for removing the brush cover 140 are described in greater detail herein with reference to FIGS. 4D-4E (e.g., button 418 and / or slider 419) .
[0118] Also depicted in FIGS. 2B-2C, a fluid application face 624 (also referred to herein as a “spray bar” ) is located on the front side 110a of the head housing 110. When a brushroll 150 is installed between the left and right supports 120L (not pictured) , 120R, the fluid application face 624 at least partially surrounds the outer face of the brushroll 150. The fluid application face 624 occupies a top portion of the front side 110a of the head housing 110. One or more spray nozzles 630 and / or deflectors 640 can be disposed on the fluid application face 624. Beneath the fluid application face 624 and occupying a lower portion of the front side 110a of the head housing 110 is an intake face 124. The intake face 124 includes a recessed leading to a central intake 126 therein. The left and right sides of the intake face 124 can angle inward and lead to the central intake 126 itself. The central intake 126 forms a suction inlet that generally allows for dirt, debris, and waste to be taken into the cleaning device 10. In some embodiments, the deflectors 640 include a wiper disposed between the central intake 126 and the spray nozzles 630. The wiper can extend into the brushroll 150 when the brushroll 150 is installed within the head assembly 100. The wiper can evenly distribute fluid supplied to the brushroll 150 by the spray nozzles 630 as the brushroll 150 is rotatably driven. In some embodiments, the deflectors 640 include a comb disposed between the central intake 126 and the spray nozzles 630. The comb can extend into the brushroll 150 when the brushroll 150 is installed within the head assembly 100. The comb can have a plurality of teeth separated by a plurality of gaps, such that the comb removes hair and large debris from the surface of the brushroll 150 as the brushroll 150 is rotatably driven. In some embodiments, the head assembly includes a flexible guide and / or squeegee 180 on a lower front surface of the head assembly. As shown in FIGS. 2B-2C, the squeegee 180 can be positioned beneath the intake face 124.
[0119] The space within the head housing 110 that receives the brushroll 150 is a brushroll chamber 131 (also referred to herein as a “brushroll cavity, ” “agitator chamber, ” or “agitator cavity” ) . The brushroll chamber 131 is defined, at least in part, by one or more of the following components: the head housing 110, the brushroll cover 140, the intake face 124, and the fluid application face 624. In some embodiments, the brushroll cover 140 forms a portion of a top wall, a front wall, and a side wall of the brushroll chamber 131. In some embodiments, the intake face 124 forms a portion of a rear wall of the brushroll chamber 131, such that the central intake 126 is disposed in a rear of the brushroll chamber 131. In some embodiments, the fluid application face 624 forms another portion of a rear wall of the brushroll chamber 131, such that the spray nozzles 630 are disposed in the brushroll chamber 131 above the central intake 126. The spray nozzles 630 can emit cleaning fluid directly onto the brushroll 150 when the brushroll 150 is mounted within the brushroll chamber 131.
[0120] FIG. 2D shows a more detailed view of the brushroll cover 140. The brushroll cover 140 includes a left support 120L for the brushroll 150, described below. When the brushroll cover 140 and brushroll 150 are installed on the head assembly 100, the brushroll can be installed between the left support 120L of the brushroll cover 140 and the right support 120R of the head housing 110. The left and right supports 120L, 120R form rotatable mounts and / or mounting points for the outer ends of the brushroll 150, allowing the brushroll 150 to rotate about a longitudinal axis (e.g., axis X, as described with respect to FIG. 2E) . In some embodiments, one or both of the left and right supports 120L, 120R can be located on an arm extending into the brushroll chamber 131 from the brushroll cover 140 and / or the head housing 110. The brushroll cover 140 includes a curved surface 142 that covers at least a portion of the top of the brushroll 150. Next to the curved surface 142 is a connection surface 144 configured to slide under the top side 110b of the head housing 110, resting against the cover support 116. The brushroll cover 140 can have at least one sidewall that covers at least a portion of the side of the brushroll 150. As shown in FIG. 2D, the brushroll cover has a left sidewall 146 that covers a left side of the brushroll 150. The sidewall 146 can be a thin sidewall, as described herein with respect to FIG. 4F.Referring back to FIG. 2D, the sidewall 146 can have a depression 146a formed within. The depression 146a is located rearwardly of the left support 120L and extends back further rearward beyond the rear-most point of the connection surface 144. The depression 146a is configured to increase structural support of the brushroll cover 140 by extending into the side of the head housing 110 and providing the brushroll cover 140 with greater purchase. In some embodiments, the depression 146a has an elongate ovular shape, as shown in FIG. 2D, for example, but the depression 146a can vary in shape.
[0121] In both wet and dry cleaning modes, a brushroll (e.g., brushroll 150, etc. ) or other scraping device may be used in conjunction with the head assembly 100 to more efficiently remove waste from a target area. FIG. 2E shows an embodiment of the brushroll 150, which can be received within the head assembly 100 depicted in FIGS. 2A-2D. The brushroll 150 can rotate about a longitudinal axis X running through the center of the brushroll 150. In various cleaning operations, the brushroll 150 is configured to rotate about axis X to loosen waste deposited on a surface to be cleaned. The brushroll 150 is also able to direct waste into the cleaning device. While the configuration of the brushroll 150 can vary, in one embodiment the brushroll 150 can have a substantially elongate cylindrical shape and can include a central dowel 152 and a cleaning material 154 surrounding the dowel 152. The dowel 152 can be cylindrical, having right and left ends 152R, 152L, and the dowel 152 can be made of a rigid material, such as a hard plastic, metal, rubber, or a combination thereof, to provide the brushroll 150 with some support. In some embodiments, the dowel 152 can extend along the axis X such that the brushroll 150 is centered relative to the axis X.
[0122] In some embodiments, one of the right and left ends 152R, 152L is a mount end that is rotatably coupled to the brushroll cover 140, and the other is a driven end that is operably coupled to a motor (also referred to herein as a “driver” ) within the head housing 110. In some embodiments, the mount end comprises a touchpoint disposed on an end thereof, the touchpoint configured to remain free of fluid, dirt, and debris during a cleaning operation (e.g., touchpoint 455 of FIG. 4C) . A spring (e.g., spring 457 of FIG. 4C) can be used to bias the mount end away from the driven end. In some embodiments, the dowl 152 can move relative to the cleaning material 154 such that the mount end and / or driven end can translate relative to the cleaning material 154. For example, the mount end is translatable along the axis X under tension relative to the driven end. When the brushroll 150 is mounted within the brushroll chamber 131, the mount end of the dowel 152 is in a recessed position, such that the mount end is recessed within the brushroll 150 and the cleaning material 154 (e.g., a bristle and / or microfiber) extends laterally outward beyond the sides of the mount end. In the recessed position, the brushroll cover 140 can be operably coupled to the brushroll 150 at the mount end. However, when the brushroll 150 is removed from its mounting points within the brushroll chamber 131, the mount end of the dowel 152 is in an extended position, and the mount end translates laterally outward along the axis X such that the mount end of the dowel 152 extends beyond the cleaning material 154. In the extended position, the brushroll cover 140 is removed from the head housing 110.
[0123] In some embodiments, the dowel 152 forms a central core of the brushroll 150 around which other materials, such as the cleaning material 154, can be attached. For example, the cleaning material 154 is attached to the outer surface of the dowel 152 along the entire length thereof and can be made of various cleaning materials, such as microfiber, bristles, or other materials known in the art, alone or in some combination. Further, the cleaning material 154 can be disposed in a variety of configurations on the outer surface of the dowel 152, and it can be formed from one or more materials which can be intermixed or separated into specific regions. In some embodiments, the right and left ends 152R, 152L form deadzones 153 in which the cleaning material 154 is reduced. For example, as shown in FIG. 2F, on the right and left ends 152R, 152L, microfiber 154a is attached to the brushroll 150, but bristles 154b are not attached to the brushroll 150.
[0124] Once waste is removed from the surface and sucked into the cleaning device via the head assembly 100, the waste may be transported to a fluid recovery tank of the fluid recovery assembly. The fluid recovery tank may be a removable tank disposed within the body assembly 200 that can be fluidly connected to the suction inlet of the of head assembly 100. Separation of waste types (e.g., liquid waste from solid waste) may be performed by a separator component within the fluid recovery tank.
[0125] Reference is now made to the features that enable additional waste removal and / or cleaning functionalities of the cleaning device. As previously described, regular wet and dry cleaning modes may be effective at removing the majority of debris from a surface, but in some embodiments, targeted wet cleaning of difficult-to-remove debris may be further required. Enhanced fluid delivery methods involving the application of cleaning fluid onto a target area may be used to perform such targeted cleaning. The cleaning device may include one or more features such as nozzles, targeting lights, and / or spray handle assemblies to perform the enhanced fluid delivery methods, which improves the overall functionality of the cleaning device and enables it to clean debris that would otherwise not be removed.
[0126] FIGS. 3A-3H depict a head assembly 100’ having various features to enable easier, more targeted cleaning. The head assembly 100’ of FIGS. 3A-3H can have any of the features described with reference to the head assembly 100 of FIG. 1A. As illustrated in FIGS. 3A-3C, an exemplary head assembly 100’ can include a head housing 110’a nd a brushroll cover 140’ removably coupled to the head housing 110’ over an upper front portion of the head assembly 100’ , which can contain a brushroll 150’ . In addition to the internal fluid application face (not pictured) which is configured to dispense fluid onto the brushroll 150’ , the head assembly 100’ also includes an external fluid applicator 160’ that dispenses fluid onto a targeted area of the surface to be cleaned. As shown in FIG. 3A, the external fluid applicator 160’ includes one or more spray nozzles 162’ located on a front-facing external surface 142’ of the removable brushroll cover 140’ . In some embodiments, the brushroll cover 140’ includes fluid supply lines that supply cleaning fluid to the external fluid applicator 160’ . For example, as shown in FIGS. 3B-3C, one or more fluid supply lines 164’ can be fluidly connected to a supply nozzle 163’ on the head housing 110’ . The supply nozzle 163’ can be located on a portion of the head housing 110’ adjacent to the brushroll cover 140’ . Further, as shown in FIG. 3C, one or more removable hoses 166’ can fluidly connect the fluid supply lines 164’ to the one or more spray nozzles 162’ . The removable hoses 166’ , once installed, can form fluid connections between the spray nozzles 162’ on the removable brushroll cover 140’a nd the fluid supply lines 164’ , which are in turn fluidly connected to the fluid supply tank located within the body of the cleaning device (not pictured) .
[0127] In some embodiments, because the brushroll cover 140’ is removable, it may be necessary to temporarily sever the fluid connections between the spray nozzles 162’ on the brushroll cover 140’ and the fluid supply lines 164’ . To do this, a user may manually remove the hoses 166’ and plug, block, or otherwise prevent fluid flow from exiting the fluid supply lines 164’ until the hoses 166’ are reinstalled. Thus, the external fluid applicator 160’ of the head assembly supports fluid being dispensed from the spray nozzles 162’ when the brushroll cover 140’ is installed and disconnects fluid flow when the brushroll cover 140’ is removed.
[0128] In some embodiments, a head assembly 100’ includes an internal fluid applicator 170’ configured to dispense fluid onto the brushroll 150’ . As shown in FIG. 3D, the head assembly 100’ includes only the internal fluid application 170’ and does not include any external fluid applicators 160’ that dispense fluid directly onto the surface to be cleaned. The internal fluid applicator 170’ can share any features of fluid application face 624 of FIGS. 2B-2C, and vice versa. One or more fluid supply lines 172’ within the head assembly 100’ can provide fluid to the internal fluid applicator 170’ . In some embodiments, the internal fluid applicator 170’ may include a plurality of spray nozzles (e.g., nozzles 630 of FIGS. 2B-2C and / or spray nozzles 912 of FIG. 9C) located on an internal surface of the head assembly 100’ (e.g., fluid application face 624 of FIGS. 2B-2C) . The plurality of spray nozzles can dispense fluid onto the brushroll 150’ directly. Alternatively or in addition, the plurality of spray nozzles can dispense fluid onto a manifold and / or surface that disperses fluid (e.g., deflectors 640 of FIGS. 2B-2C) , before the fluid then makes contact with the brushroll 150’ . For example, the spray nozzles can dispense cleaning fluid onto a curved surface above the brushroll 150’ , such that the fluid spreads across the surface and drips downward onto the brushroll 150’ . This can enable more even fluid distribution across the length of the brushroll 150’a s it rotates during cleaning operations. Additional embodiments of the manifold and / or surface that disperses fluid are described herein with respect to FIGS. 6A-6C, 7A-7C, 8A-8C, and 9A-9C.
[0129] In addition to the internal and / or external fluid applicators 160’ , 170’ of the head assembly 100’ , the underside of the head assembly 100’ may include other features that improve the cleaning functionality of the cleaning device. For example, as illustrated in FIGS. 3E-3F, the head assembly 100’ may include a flexible guide and / or squeegee 180’ on a lower surface of the head assembly. As shown in FIGS. 3E-3F, the flexible guide 180’ may be positioned beneath the intake face (e.g., intake face 124 of FIGS. 2B-2C) through which waste enters the head assembly 100’ . The flexible guide 180’ may extend below the bottom side of the head housing 110’ such that, when the cleaning device is placed on the surface to be cleaned, the flexible guide 180’ is biased against the surface, thereby allowing for waste to be fed toward the intake face without leaving a gap for waste to avoid the cleaning device. The flexible guide 180’ may provide additional friction for scrubbing at difficult-to-remove debris. In some embodiments, the flexible guide 180’ may be formed of a flexible and waterproof material, such as plastic or rubber. As shown in FIGS. 3E-3F, the flexible guide 180’ may comprise a living hinge 182’ that is formed from a substantially folded piece of a material, such that the folded region of the flexible guide 180’ makes contact with the surface when the cleaning device is placed on the surface. In other embodiments, the flexible guide 180’ may comprise a material with a tapered cross-section that is thickest where the flexible guide 180’ is attached to the head housing 110’ and thinnest at the region where the flexible guide 180’ makes contact with the surface to be cleaned. Additional embodiments of a squeegee and / or flexible guide 180’ are described herein with respect to FIGS. 10A-10G.
[0130] Additionally, removable access hatches 190’ can be installed on one or more surfaces of the head housing 110’ , such as the bottom surface 110c’ of the head housing 110’ . As shown in FIGS. 3G-3H, the removable access hatch 190’ on the bottom surface 110c’ may allow a user to access an airway 192’ of the head assembly to clear blockages and / or debris that has accumulated within the head housing 110’ . Because difficult-to-remove debris may frequently be sticky or dense, it may tend to accumulate at the lowest point of the cleaning device (e.g., the bottom 110c’ of the head assembly 110c’ ) and at points at which airflow narrows and / or constricts. Having a removable access hatch 190’ located at such locations enables users to manually remove clogs without requiring disassembly of other components of the cleaning device.
[0131] The brushroll and brushroll cover of the head assembly may also include features that provide enhanced self-cleaning and surface cleaning abilities. Referring now to FIGS. 4A-4H, the brushroll cover 440 can be secured to the head assembly 400 to cover the brushroll 450 in order to prevent splash and spray from the brushroll 450 while it is in operation. Optionally, the brushroll cover 440 can provide a spray nozzle 460 above the brushroll 450 which can dispense cleaning fluid onto a target area. The brushroll cover 440 can be shaped to extend along the entire width of the head housing 410 and along at least part of a top side and at least part of a front side of the head housing 410. In some embodiments, the brushroll cover 440 may end slightly above the surface upon which the cleaning device can rest. The brushroll cover 440 may have a curve as it transitions from the top side to the front side of the head housing 410. In some embodiments, one or more sides of the brushroll cover 440 extend rearward beyond the brushroll chamber (e.g., chamber 131 of FIGS. 2B-2C) and overlap with a side of the head housing 410. The sides of the brushroll cover 440 can connect to sidewalls 442L, 442R, which are configured to cover and support at least a portion of the sides of the brushroll 450. One or more of the sidewalls 442L, 442R can be integrally formed with the brushroll cover 440 such that removing the brushroll cover 440 will also remove the sidewall 442L and / or 442R from the cleaning device. In some embodiments, one or more of the sidewalls 442L, 442R may extend from the head housing 410 instead of the brushroll cover 440, such that removing the brushroll cover 440 will not remove the sidewall 442L and / or 442R from the cleaning device.
[0132] As shown in FIG. 4A, the brushroll cover 440 may be a removable cover that is shaped approximately like a retracted “garage door, ” which covers at least a portion of the front of the brushroll 450 and at least a portion of the top of the brushroll 450 (relative to the surface on which the cleaning device is placed) . In some embodiments, the brushroll cover 440 may be fixed in shape such that it does not substantially deform and / or actuate during operation of the cleaning device. In some embodiments, at least a portion of the brushroll cover 440 may be flexible and / or adjustable (e.g., allowing a portion of the brushroll cover 440 to be “rolled down” to cover more of the brushroll 450 or “rolled up” to cover less of the brushroll 450) . In the example of FIG. 4A, the left sidewall 442L is integrally formed with the brushroll cover 440 and the right sidewall 442R is fixed to the head housing 410 instead of the brushroll cover 440. Both the left and right sidewalls 442L, 442R can include one or more support structures 420 configured to support one end of the brushroll 450 attached to the sidewall. For example, the left sidewall 442L can include a bearing 420 that is configured to receive a left portion of the brushroll 450 (e.g., a left end 152L of a central dowel 152 of the brushroll 150 of FIG. 2E) , supporting it as it rotates during cleaning operations. In some embodiments, the bearing 420 is a rotatable mounting point that is not motorized. The right sidewall 442R can include a motorized mounting point (not pictured) configured to receive the corresponding right portion of the brushroll 450 and to drive the rotation of the brushroll 450 during cleaning operations.
[0133] To remove the brushroll cover 440 from the head assembly, an actuator such as the button 418 on the head housing 410 and / or brushroll cover 440 can be actuated to release one or more latches (not pictured) that connect the brushroll cover 440 to the head housing 410. In some embodiments, actuation of the button 418 can decouple the brushroll cover 440 from the head housing 410 such that the brushroll cover 440 is ejected in a direction (e.g., left) substantially parallel to a rotational axis (e.g., axis X of FIG. 2E) of the brushroll 450. The left sidewall 442L and brushroll 450 can then be slid off sideways toward the left of the brushroll 450, leaving behind the right sidewall 442R in place. As the brushroll 450 is slid off sideways toward the left, the right end of the brushroll 450 can disengage from the motor, allowing for the brushroll 450 to be moved upward and / or outward from the head assembly 400, thereby removing the brushroll 450 from the head assembly 400. Additional features for removing the brushroll cover 440 and brushroll 450 are described later with respect to FIG. 4C.
[0134] As shown in FIG. 4B, when the brushroll cover 440 is installed over the brushroll 450, at least one sidewall 442L, 442R may be positioned flush against the edge of the brushroll 450. The example in FIG. 4B illustrates the left sidewall 442L as being flush against the left edge of the brushroll 450; the right sidewall 442R (not pictured) can also be flush against the right edge of the brushroll 450. Keeping the sidewalls 442L, 442R flush against the edges of the brushroll 450 enables brushroll cleaning due to friction between the brushroll 450 and the sidewalls 442L, 442R. For example, bits of debris and liquid that may otherwise adhere to the edges of the brushroll 450 may be scraped off by the sidewalls 442L, 442R and vacuumed up via the intake face of the head assembly 400, allowing for a more thorough cleaning and maintaining a cleaner brushroll 450. Furthermore, having thin sidewalls 442L, 442R positioned flush against the edges of the brushroll 450 enables the cleaning device to be positioned against walls, ledges, and other vertical objects such that the brushroll 450 can clean the hard-to-access edges of the floor near the objects. This “edge cleaning” is made possible due to the thinness of the sidewalls 442L, 442R. In some embodiments, when a side of the head assembly 400 is placed against a wall, the head assembly 400 can generate suction and / or spray liquid onto the ground directly adjacent to the wall, with no gap between the suction and / or spray and the wall. In some embodiments, the head assembly 400 can generate suction and / or spray liquid onto the ground near the wall but not directly adjacent to the wall, such as with a 1 mm gap, a 2 mm gap, a 3 mm gap, a 4 mm gap, a 5 mm gap, etc. between the suction and / or spray and the wall.
[0135] In the above-described embodiments, the portion of the brushroll 450 received by the bearings of the left sidewall may be a portion of a central dowel (e.g., central dowel 152 of FIG. 2E) . In some embodiments, such as the example shown in FIG. 4C, the brushroll 450 changes in shape when the brushroll cover 440 is removed. As shown at 402 of FIG. 4C, the portion of the brushroll 450 adjacent the left sidewall 442L can include a spring-loaded touchpoint 455 that pops out from the brushroll 450 when the brushroll cover 450 is removed. In such embodiments, after the one or more latches that connect the brushroll cover 440 to the head assembly 400 are released, the brushroll cover 440 can be slid left to disconnect the left sidewall 442L from the spring-loaded touchpoint 455. As shown at 402 of FIG. 4C, the touchpoint 455 can then extend leftward to provide the user with a clean protrusion which can be held during removal. A spring 457 pushes the touchpoint 455 outward once the brushroll cover 450 is removed. At 404 of FIG. 4C, the brushroll 450 can then be lifted away from the head assembly 400 via the touchpoint 455 so that the user’s hand does not make contact with the dirty portions of the brushroll 450. This makes for easier cleaning and removal of the brushroll 450. To reinstall a new brushroll 450, its touchpoint 455 can be pressed rightward against the brushroll 450 when the brushroll cover 440 and left sidewall 442L are slid back onto the head assembly. The touchpoint 455 then reengages with the bearings of the left sidewall 442L and resumes normal cleaning operations. The right end of the brushroll 450 can re-engage with the drive motor (e.g., via bearings on the head assembly and / or right sidewall) . In some embodiments, the button to remove the brushroll cover 440 can be mechanically and / or electrically connected to the touchpoint 455. In such embodiments, actuating the button to release the latches of the brushroll cover 440 can also actuate the touchpoint 455, allowing it to automatically deploy leftward and push out the left sidewall 442L and brushroll cover 440 from the head assembly 400.
[0136] FIG. 4D illustrates a 6-panel schematic of how a brushroll cover 440 and a brushroll 450 can be removed from the head housing 410 of the head assembly 400. As shown in panel 1, the removal process begins with a user actuating a slider 419 disposed on the top surface of the head housing 410. Actuating the slider 419 in a lateral direction relative to the head housing 410 (e.g., in a leftward direction and / or parallel to the brushroll) releases the latches holding the brushroll cover 440 against the head housing 410. As shown in panel 2, the user can then translate the brushroll cover 440 in the lateral direction to move the brushroll cover 440 away from the head housing 410. In some embodiments, the slider 419 is spring-biased such that, when the user is no longer actuating the slider 419, it translates in an opposite direction (e.g., in a rightward direction) of the lateral direction, until the slider 419 reaches its starting position, due to the spring bias applied to the slider 419. As shown in panel 3, after the brushroll cover 440 is translated in the lateral direction by its entire length, the brushroll cover 440 is fully removed from the head housing 410. One or more grooves and / or channels along the head housing 410 can receive the edges of the brushroll cover 440 such that the brushroll cover 440 slides laterally through the grooves and / or channels during removal. Also shown in panel 3 is the touchpoint 455 of the brushroll 450, which extends laterally outward beyond the core of the brushroll 450 to provide a protrusion for the user to hold onto. As shown in panel 4, the user can grasp the touchpoint 455 to move the brushroll 450 relative to the head housing 410. As shown in panel 5, the user, while holding onto the touchpoint 455, translates the brushroll 450 in the same lateral direction to move the brushroll 450 away from the head housing 410. The right end of the brushroll 450 moves away from its corresponding mounting point 409 on the head housing 410. Finally, as shown in panel 6, the brushroll 450 can be fully disengaged from the head housing 410 after it is translated in the lateral direction by the length of the mounting point 409. The brushroll cover 440 and brushroll 450 can thus both be removed from the head housing 410 via movement in the same lateral direction. In some embodiments, to reattach the brushroll 450 and the brushroll cover 440 to the head housing 410, the brushroll 450 is translated in the opposite direction as it was translated during the removal process. Likewise, upon reattachment of the brushroll 450, the brushroll cover 450 is translated in the opposite direction as it was translated during the removal process.
[0137] FIG. 4E illustrates an additional example of an actuator for removing a brushroll cover 440. As shown in FIG. 4E, the button 418 is an actuator disposed on a side of the head housing 410. Upon actuation, the button 418 is pressed laterally into the side of the head housing 410. In some embodiments, the direction in which the button 418 is pressed is the opposite direction (e.g., a rightward direction) of the direction in which the brushroll cover 440 is translated during removal (e.g., a leftward direction) . It is to be understood that the location and actuation of the button 418 is merely an example, and that the button 418 could be located at any point on the head housing 410 and / or actuated in any direction. FIG. 4E also illustrates a light 565 disposed on the head housing 410. The light 565 will be described in greater detail below with respect to FIG. 5A.
[0138] In some embodiments, the brushroll cover 440 can have a sidewall (e.g., the left sidewall 442L of FIG. 4F) that is sufficiently thin so as to form a “zero-edge” design. In the zero-edge design, an outer surface of the sidewall is within 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, and / or 5 mm of the brushroll 450 when the brushroll 450 and brushroll cover 440 are installed onto the head assembly 400. For example, the sidewall is 3 mm thick, and the brushroll 450 is installed directly against an inner surface of the sidewall (e.g., with the touchpoint 455 of the brushroll 450 engaged against the left sidewall 442L) , such that the outer surface of the sidewall is within 3 mm of the brushroll. One sidewall can be thinner than the other sidewall (e.g., the left sidewall 442L of FIG. 4F is thinner than the right sidewall 442R) . Thus, edge cleaning can be enabled against the side of the head assembly 400 on which the thinner sidewall (e.g., left sidewall 442L of FIG. 4F) of the brushroll cover 440 is located.
[0139] The sidewalls 442L, 442R can partially or fully cover the side of the brushroll 450 when the brushroll cover 440 and the brushroll 450 are installed in the head assembly 400. As shown in FIG. 4G, the left sidewall 442L of the brushroll cover 440 does not fully cover the left side of the brushroll 450, instead leaving an underhanging gap 490 that exposes the bottom left side portion of the brushroll 450. The underhanging gap 490 is underneath of the axis around which the brushroll 450 is configured to spin. The underhanging gap 490 exposes a sufficient portion of the brushroll 450 to allow the brushroll 450 to clean a wall / surface directly next to the head assembly 400. In some embodiments, one or more regions of the brushroll 450 can extend through a gap (e.g., the underhanging gap 490) in the sidewall 442L to the outer surface of the sidewall 442L, allowing for the brushroll 450 to clean any surface that the outer surface of the sidewall 442L makes contact with. In some embodiments, bristles of the brushroll 450 extend beyond the outer surface of the sidewall 442L, further enhancing the edge cleaning ability of the brushroll 450. (See FIG. 4H, in which one end of the brushroll 450 extends beyond the outer surface of the head assembly 400. )
[0140] The brushroll may be of particular relevance to wet cleaning mode operations. In operations employing the wet cleaning mode, fluid is applied to the brushroll of the cleaning device, a surface outside of the device to be cleaned, or a combination thereof, in order to aid in dirt and waste removal. In order to prepare for cleaning in such modes, the fluid supply tank can be filled with a cleaning fluid and retained within the body assembly of the cleaning device. Wet cleaning mode can be activated through actuation of a wet cleaning switch, which in one embodiment can be located on a top side of the body assembly.
[0141] As described above, during typical wet mode cleaning operation, the brushroll may be saturated with one or more spray nozzles contained within the fluid application face of the head assembly. The one or more spray nozzles may be positioned anywhere within the fluid application face so as to provide the brushroll with a consistent application of fluid that allows the brushroll to be evenly saturated. In some embodiments, the brushroll may be saturated via a manifold that disperses fluid evenly across the length of the brushroll. Embodiments of the manifold are described in greater detail herein with respect to FIGS. 6A-6C, 7A-7C, 8A-8C, and 9A-9C.
[0142] In some embodiments, the brushroll may be equipped with spray nozzles, such as the spray nozzles located on a front-facing external surface of the removable brushroll cover of FIGS. 3A-3C. The additional spray nozzles may be configured to apply the cleaning fluid directly to the surface instead of directly to the brushroll. The ability to directly apply cleaning fluid to the surface via the spray nozzles is a feature that enhances the surface cleaning ability of the cleaning device.
[0143] With reference now to FIG. 5A, a head assembly 500 includes a spray nozzle 560. The spray nozzle 560 is positioned near a front surface of the brushroll cover 540 so that it sprays fluid onto difficult-to-remove debris of the surface to be cleaned. The spray nozzle 560 can share any of the features described with respect to the spray nozzles of FIGS. 3A-3C. In some embodiments, the spray nozzle 560 may be centrally positioned relative to the left and right sidewalls 542L, 542R of the brushroll cover 540 and may be elevated a certain distance above the surface to be cleaned. The spray nozzle 560 may be angled slightly downward to apply fluid at an angle onto the target area of the surface to be cleaned. The spray nozzle 560 can have any arc and / or spray pattern, such as a linear jet, a radial arc, a mist, a cone, etc.
[0144] In conjunction with the spray nozzle 560 of FIG. 5A, one or more lights 565 may be used to guide the application of cleaning fluid onto the target area containing difficult-to-remove debris. For example, the head assembly 500 may contain a targeting light 565 (e.g., laser) that aims to the area where the spray nozzle 560 is pointing. The user can move the targeting light 565 by moving the head assembly 500 of the cleaning device, allowing the user to gauge where to position the cleaning device before applying cleaning fluid to the target area. In some embodiments, the head assembly 500 may contain one or more illuminating lights 565 (e.g., headlights) that provide general illumination to the area in front of the head assembly 500. The illuminating lights 565 can be any kind of light source known, including a light-emitting diode, and the like. The lights 565 can illuminate a wide region of the surface in which the target area can be located and / or illuminate the cleaning liquid’s spray path as it leaves the spray nozzle 560. This enables the cleaning device to be used in low-light conditions and / or generally enhances visibility in front of the cleaning device for users. In some embodiments, the illuminating lights 565 can be activated when the cleaning device is positioned on a hard floor and deactivated when positioned on a carpeted floor. FIG. 5B illustrates various examples of illumination patterns that can be projected by lights 565 of the head assembly 500. The depicted illumination patterns can be used as targeting lights and / or for general illumination of the area near the head assembly 500.
[0145] To perform various functions associated with controlling the spray nozzle 560 and applying extra cleaning fluid to the target area, a multi-stage spray trigger 510 may be used. As shown in FIG. 5C, a multi-stage spray trigger 510 may be a lever, switch, and / or other actuator located on a handle 310 of a handle assembly 300 of the cleaning device. The user can simultaneously grip the handle 310 and actuate the multi-stage spray trigger 510 to maneuver the cleaning device while spraying the cleaning fluid. The multi-stage trigger 510 can be mechanically and / or electrically connected to the spray nozzle 560, the processor of the cleaning device, the vacuum motor, and / or any other controllable components of the cleaning device. The multi-stage trigger 510 can be depressed to multiple stages (e.g., partially depressed, fully depressed) and / or squeezed in certain patterns (e.g., two squeezes in quick succession vs. one long squeeze) to perform various different actions of the cleaning device. For example, in an exemplary embodiment, the multi-stage trigger 510 may be partially depressed to activate the targeting light 565 of the head assembly 500 so that the user can identify the target area onto which the cleaning fluid will be sprayed, and then fully depressed to spray a predetermined amount of cleaning fluid onto the target area. In other embodiments, the multi-stage trigger 510 may be actuated in various ways to dispense different amounts of cleaning spray, to control the on / off / duty cycle of one or more lights 565 of the head assembly 500, to adjust the rotation speed of the brushroll 550, to activate / deactivate the vacuum motor, etc. In some embodiments, the multi-stage trigger 510 can be partially depressed (e.g., half-pressed) to spray cleaning liquid onto a narrow, targeted area of the ground and / or fully depressed to dispense a large quantity of cleaning liquid onto the ground surrounding the head assembly 500.
[0146] In some embodiments, the multi-stage spray trigger 510 may be a three-stage trigger. The various stages are determined when one or more contacts within the trigger 510 touch internal buttons within the handle assembly. The contacts and / or the buttons can be electrically coupled to the processor of the cleaning device and can generate an electrical signal when touched together. In the first stage, the trigger 510 is depressed to a first point and / or by a first distance such that a first contact 541 touches the first button 551, and light is projected by the cleaning device onto the surface to be cleaned. For example, the head assembly can include one or more lights that are configured to project light onto the target area of the surface that will receive cleaning fluid. In the second stage, the trigger 510 is depressed to a second point deeper than the first point and / or by a second distance greater than the first distance such that a second contact 542 touches the second button 552. The first contact 541 may remain in contact with the first button 551. Upon depressing the trigger 510 to the second stage, fluid is dispensed from the head assembly onto the surface to be cleaned. Suction is activated, and the brushroll rotates at a first rotational speed. In the third stage, the trigger 510 is depressed to a third point deeper than the second point and / or by a third distance greater than the second distance such that a third contact 543 touches the third button 553. The first contact 541 may remain in contact with the first button 551, and the second contact 542 may remain in contact with the second button 552. In some embodiments, at the third stage, the trigger 510 is fully depressed. Upon depressing the trigger 510 to the third stage, deep cleaning is performed. Suction is deactivated, and the brushroll rotates at a second rotational speed greater than the first rotational speed. The faster rotation of the brushroll can dislodge hard-to-remove debris from the surface and / or can saturate the area around the brushroll with cleaning fluid.
[0147] As described above, during typical wet mode cleaning operation, the brushroll may be saturated with cleaning fluid via one or more spray nozzles contained within the head assembly. In some embodiments, the spray nozzles are integrated within and / or fluidly connected to a fluid manifold, which is a component positioned within the head assembly that distributes fluid evenly onto the brushroll. The fluid manifold includes a manifold cover and an angled surface. In some embodiments, one or more spray nozzles are distributed throughout the manifold cover to dispense water onto the angled surface. The angled surface extends longitudinally along the length of the brushroll. Fluid can flow from the top of the angled surface to the bottom, where it can be dispensed onto the brushroll, thus evenly saturating the brushroll and providing more even cleaning of the surface. Use of an appropriate fluid manifold can enhance the surface cleaning ability of the cleaning device.
[0148] Optionally, modifications can be made to the shape of the manifold cover, spray nozzles, and / or angled surface to alter how fluid is distributed by the fluid manifold. In some embodiments, the manifold cover is positioned vertically above the angled surface when the fluid manifold is installed within the head assembly. In such embodiments, the manifold cover can include a plurality of outlets, each outlet corresponding to one or more of the spray nozzles. The angled surface can include a plurality of protrusions and / or cavities corresponding to the positions of the outlets. The shapes of the protrusions and / or cavities are designed to direct water along the angled surface in a desired flow pattern. The outlets can have any cross-sectional shape, including, but not limited to, rounded or rectangular cross-sections.
[0149] In some embodiments, the fluid manifold may be a gravity drip manifold (also referred to herein as a “drip bar” ) . As shown in FIGS. 6A-6C, a gravity drip manifold 600 includes a manifold cover 610 and an angled surface 620. Fluid is dispensed from one or more outlets 612 spaced out along the length of the manifold cover 610. The fluid drips downward onto the angled surface 620, where it flows along one or more dividers 622 to disperse downward and laterally across the surface before saturating the brushroll (not pictured) . FIG. 6A is a perspective view of the overall gravity drip manifold 600, illustrating that the manifold cover 610 and the angled surface 620 extend longitudinally in the same direction. FIG. 6B is a side view of the gravity drip manifold 600 including an outlet 612. In some embodiments, the outlet 612 has a circular cross-section. As shown in FIG. 6B, the outlet 612 has a bend, such that fluid flows horizontally before being dispensed downward onto the angled surface 620. In some embodiments, the bend is a 90-degree bend that drips water directly downward onto the angled surface 620. FIG. 6C is a flow diagram of how fluid flows across the angled surface 620 after being dispensed by the outlet 612 of FIG. 6B. As shown in FIG. 6C, the angled surface 620 includes a divider 622 positioned underneath the outlet 612, such that the highest portion of the divider 622 roughly aligns with the center of the outlet 612. By positioning the divider 622 beneath the outlet 612, fluid from the outlet 612 is divided across either side of the divider 622 such that it spreads more evenly and disperses more widely across the angled surface 620. This dispersal of fluid across the angled surface 620 enables the even saturation of fluid into the brushroll.
[0150] FIGS. 7A-7C illustrate another embodiment of a gravity drip manifold 700. The gravity drip manifold 700 can have similar features as the gravity drip manifold 600 with the exception of its outlet shape, and as such, the descriptions of like features will not be repeated. FIG. 7A is a perspective view of the gravity drip manifold 700, which has a manifold cover 710 and an angled surface 720 and is similar in structure to the gravity drip manifold 600. FIG. 7B is a side view of the gravity drip manifold 700 which includes an outlet 712. In some embodiments, the outlet 712 has a rectangular cross-section instead of the circular cross-section of outlet 612 of FIGS. 6A-6C. FIG. 7C is a flow diagram of how fluid flows across the angled surface 720, which includes a divider 722 positioned underneath the outlet 712.
[0151] In some embodiments, the fluid manifold may be a vertical spray roof manifold. As shown in FIGS. 8A-8C, a vertical spray roof manifold 800 includes a manifold cover 810 and an angled surface 820. Fluid is dispensed from one or more outlets 812 spaced out along the length of the manifold cover 810. The fluid is angled upward by an upward-facing outlet 812 so as to spray fluid upward onto a curved interior surface of the manifold cover 810. The manifold cover 810 then directs the fluid downward onto the angled surface 820, where it flows along one or more cavities 822 to disperse downward and laterally across the surface before saturating the brushroll (not pictured) . FIG. 8A is a perspective view of the overall vertical spray roof manifold 800, illustrating that the manifold cover 810 and the angled surface 820 extend longitudinally in the same direction. The orientation of the vertical spray roof manifold 800 can be approximately the same as the orientation of the gravity drip manifolds 600 and 700. In some embodiments, one or more fluid input lines providing fluid to the vertical spray roof manifold cover 810 may be positioned slightly lower than the analogous fluid input lines of the gravity drip manifold covers 610 and / or 710 to make more vertical room for the upward spraying and / or the curved surface of the vertical spray roof manifold 800. FIG. 8B is a side view of the vertical spray roof manifold 800 including an outlet 812. In some embodiments, the outlet 812 has a circular cross-section. As shown in FIG. 8B, the outlet 812 is angled upward relative to the angled surface 820, such that fluid is sprayed onto a curved interior surface of the manifold cover 810 before being directed downward onto the angled surface 820. FIG. 8C is a flow diagram of how fluid flows across the angled surface 820 after being dispensed by the outlet 812 of FIG. 8B. As shown in FIG. 8C, the angled surface 820 includes a fan-shaped cavity 822 positioned underneath the outlet 812, such that the narrowest portion of the cavity 822 roughly aligns with the center of the outlet 812. By positioning the cavity 822 beneath the outlet 812, fluid from the outlet 812 spreads outwardly along the surface of the cavity 822, thereby dispersing more widely and evenly across the angled surface 820. This dispersal of fluid across the angled surface 820 enables the even saturation of fluid into the brushroll.
[0152] In some embodiments, the fluid manifold may include a surface built into the brushroll cover of the head assembly. As shown in FIGS. 9A-9C, an example manifold can include a vertical surface 920 integrally formed with the brushroll cover 940. The vertical surface 920 can be arranged in front of the one or more outlets 912 spaced out along the length of the brushroll cover 940. Fluid is dispensed outward from the outlets 910 in a substantially parallel direction to the surface to cleaned (e.g., horizontally) . The dispensed fluid makes contact with the vertical surface 920, which directs the fluid downward onto the brushroll (not pictured) . As shown in FIG. 9A, the vertical surface 920 is spaced apart from the outlets 910 and deflects fluid downward in a substantially perpendicular direction relative to how fluid is dispensed from the outlets (e.g., vertically downward) . As shown in FIG. 9B, the vertical surface 920 is configured to block the horizontal movement of fluid shortly after it exits the outlets 912. In some embodiments, the vertical surface 920 deflects at least a portion of the dispensed fluid onto an angled surface 914 located beneath the outlets 912, which subsequently directs the fluid onto the brushroll at an angle. FIG. 9C illustrates the relative arrangement of the outlets 912 and the angled surface 914 in greater detail.
[0153] In some embodiments, the cleaning device may include one or more sensors. The sensors may enhance the surface cleaning ability of the cleaning device by collecting data before, during, and / or after the cleaning process. One or more settings of the cleaning device (e.g., suction pattern, brushroll speed, cleaning fluid flow rate, etc. ) can be adjusted based on the collected sensor data. The sensors may be internally placed (e.g., for detecting debris on the brushroll or within one or more airways of the head assembly) and / or externally placed (e.g., for detecting debris outside of the head assembly that can be vacuumed) . The sensors may be any type of sensor, such as accelerometers, level sensors, and infrared and / or optical sensors.
[0154] In some embodiments, the sensors may be configured to detect the direction in which the cleaning device is moving. Based on the direction of motion, the suction pattern of the cleaning device can be adjusted to maximize cleaning. For example, if the cleaning device is being moved backward (e.g., in the direction that the rear of the head assembly is facing) , the suction pattern may be changed to a reversed setting (e.g., from the side of the brushroll closer to the front of the head assembly) such that suction is trailing the brushroll relative to the direction of motion. Conversely, if the cleaning device is being moved forward (e.g., in the direction that the front of the head assembly is facing) , the suction pattern may be returned to its default settings (e.g., from the side of the brushroll closer to the back of the head assembly) to ensure that suction is still trailing the brushroll relative to the direction of motion.
[0155] In some embodiments, the sensors may be configured to detect walls, corners, baseboards, and / or other vertical obstacles near the head assembly of the cleaning device. Upon detection of the obstacles, the cleaning device may automatically increase suction to optimize cleaning when approaching the obstacles. In some embodiments, the sensors may be configured to detect wet and / or dry debris and positioned near points where wet and / or debris tends to collect. The detected wet and / or dry debris may collect along various narrow points of the cleaning device, such as along the edges of the brushroll, and may need to be removed to prevent clogs. In some embodiments, the sidewalls of the brushroll cover may be configured to remove the detected debris via friction. In some embodiments, one or more movable wipers may be positioned near the infrared sensors to wipe the sensors and dislodge debris that may have accumulated near the sensors.
[0156] In some embodiments, the sensors include an edge detector sensor module positioned within the head assembly of the cleaning device. The head assembly can include an edge detector lens, such as a lens constructed of an infrared-transparent material, to allow for the transmission and reception of infrared light by the edge detector sensor module. In some embodiments, the edge detector lens is constructed of a silicon-based material with high electrical resistance. In some embodiments, the edge detector lens is positioned on a side-facing surface of the head assembly. However, in some embodiments, the edge detector lens can be positioned on any surface of the head assembly, such as a front surface, back surface, upper surface, etc.
[0157] In some embodiments, the edge detector sensor module includes an infrared emitter and an infrared receiver. The infrared emitter and infrared receiver can be positioned within the head assembly and adjacent the edge detector lens. In some embodiments, the infrared emitter and infrared receiver are surrounded, partially or fully, by a shroud. The shroud can include an elastomeric material (e.g., a silicone, a rubber, and / or any other elastomeric material) , which can absorb vibrations and / or encourage alignment of the infrared emitter and / or infrared receiver. In some embodiments, the shroud is configured to allow infrared emissions from the infrared emitter to project through the edge detector lens, outside of the cleaning device, while blocking infrared emissions in front of the cleaning device. However, in some embodiments, the shroud can be configured to allow infrared emissions to reach other locations, such as in front of the cleaning device.
[0158] In some embodiments, the infrared transmitter is an infrared light-emitting diode, and the infrared receiver is an infrared photodiode that is sensitive to infrared light of the same wavelength as that emitted by the infrared LED. When infrared light falls on the photodiode, the resistances and the output voltages will change in proportion to the magnitude of the infrared light received. As the head assembly moves closer to the vertical surface, the amount of infrared light that reflects off the surface and is detected by the infrared detector increases. When the output from the infrared detector reaches a predetermined threshold, the controller can increase power to the suction motor to increase the cleaning performance of the cleaning device. In some embodiments, when the vertical surface is detected, the suction power is increased to maximum to improve cleaning around the vertical surfaces.
[0159] In some embodiments, the edge detector sensor module can be used in conjunction with headlights on the head assembly and / or other forms of illumination. For example, in a dark room, the edge detector sensor module may initially have difficulty detecting walls, corners, baseboards, and / or other vertical objects near the head assembly of the cleaning device. The headlights can be used to illuminate the room near the head assembly, assisting the edge detector sensor module in detecting nearby vertical objects. The headlight illumination intensity can be adjusted based on light levels near the cleaning device. For example, the illumination intensity is higher in darker rooms and lower in brighter rooms. In some embodiments, one or more light sensors can be used to detect light levels near the cleaning device, and the illumination intensity can be adjusted accordingly.
[0160] Another feature that enhances the surface cleaning ability of the cleaning device is a flexible squeegee. As described previously, the head assembly can include a flexible guide and / or squeegee on a lower surface of the head assembly. FIGS. 10A-10G illustrates another example of a squeegee 1080 that can be attached to any of the head assemblies described herein. The squeegee 1080 extends along the length of the head assembly and downward toward the surface to be cleaned. In some embodiments, the squeegee 1080 extends along the full length of the head assembly. As the cleaning device moves, the squeegee 1080 can deform to remain in contact with the surface to be cleaned, thereby scraping up debris and guiding it toward the intake face. By deforming, the squeegee 1080 can remain in contact with the surface regardless of the direction of movement of the cleaning device.
[0161] As shown in FIGS. 10A-10E, the squeegee 1080 includes a scraping portion 1082, a flexible deforming portion 1084, and a mounting portion 1086. The scraping portion 1082 makes contact with the surface to be cleaned. The scraping portion 1082 can be made of a rubber and / or plastic material that is deformable. Optionally, the scraping portion 1082 can include a semi-rigid and / or rigid rod 1082a that is embedded within the scraping portion 1082 and extends along the length of the head assembly. The rod 1082a can be made of a different material than the scraping portion 1082 (e.g., metal) , that is more rigid than the material of the scraping portion 1082. The rod 1082a provides additional support for the scraping portion 1082, reducing its bending and / or deformation. In some embodiments, the scraping portion 1082 has a substantially parabolic and / or semicircular cross-section, comprising at least one rounded edge and at least one angular corner. In some embodiments, the rod 1082a has a substantially circular cross-section. However, it is to be understood that the scraping portion 1082 and rod 1082a can have any suitable cross-sectional shape and are not limited to the above shapes.
[0162] The scraping portion 1082 is attached to a deforming portion 1084 along one edge. For example, as shown in FIGS. 10A-10E, a top, rearward edge of the scraping portion 1082 is attached to a front edge of the deforming portion 1084. In some embodiments, the deforming portion 1084 is a thin, flexible strip that is capable of bending without breaking. The deforming portion 1084 is responsible for the majority of the deformation ability of the squeegee 1080. The maximum thickness of the deforming portion 1084 is less than the maximum thickness of the scraping portion 1082, allowing for the deforming portion 1084 to bend more drastically than the scraping portion 1082 under application of the same forces. The deforming portion 1084 can be integrally formed with the scraping portion 1082 and made of the same material (e.g., plastic and / or rubber) .
[0163] The deforming portion 1084 is attached to a mounting portion 1086 along another edge. For example, as shown in FIGS. 10A-10E, a back edge of the deforming portion 1084 is attached to a top, forward edge of the mounting portion 1086. In some embodiments, the mounting portion 1086 is a non-deforming portion of the squeegee 1080 that is configured to attach the squeegee 1080 to the head assembly. The mounting portion 1086 is elevated above the surface to be cleaned and generally does not make contact with the surface during the cleaning process.
[0164] When the cleaning device is moving in the forward direction (e.g., in the direction that the front of the head assembly is facing) , as shown in FIG. 10A, the squeegee 1080 deforms such that an angular corner of the scraping portion 1082 is in contact with the surface to be cleaned. The scraping portion 1082 is folded underneath of the deforming portion 1084, which is bent downward such that the front edge of the deforming portion 1084 is near the surface to be cleaned. Conversely, when the cleaning device is moving in the rearward direction (e.g., in the direction that the rear of the head assembly is facing) , as shown in FIG. 10B, the squeegee 1080 deforms such that a rounded edge of the scraping portion 1082 is in contact with the surface to be cleaned. The scraping portion 1082 is not folded underneath of the deforming portion 1084. The deforming portion 1084 may still be bent, but the front edge of the deforming portion 1084 is further from the surface to be cleaned than during forward motion. FIG. 10C illustrates the shape of the squeegee 1080 when the squeegee 1080 is in a neutral, non-deformed position. When the cleaning device is not in movement, the squeegee 1080 can be in the neutral position. The scraping portion 1082 is partially folded underneath of the deforming portion 1084, but less so than during forward motion. Likewise, the deforming portion 1084 may still be bent, but the front edge of the deforming portion 1084 is further from the surface to be cleaned than during forward motion and closer to the surface than during rearward motion.
[0165] FIGS. 10D-10E illustrate additional views of the neutral position of the squeegee 1080. As shown in FIGS. 10D-10E, the scraping portion 1082 can be supported by a rod 1082a running lengthwise along the full length of the scraping portion 1082. The rod 1082a is positioned behind a front surface of the scraping portion 1082 and is attached to the scraping portion 1082 by a plurality of ribs 1090 at several points. The coupling between the rod 1082a and the ribs 1090 can improve the rigidity of the scraping portion 1082. In some embodiments, the ribs 1090 are configured to contact the surface to be cleaned when the cleaning device moves forward or rearward. As shown in FIG. 2D, the ribs 1090 can include three evenly spaced ribs, with a first rib at the left outer edge of the scraping portion 1082, a second rib at the right outer edge, and a third rib centered between them. The ribs 1090 form three points of attachment, providing sufficient support to the scraping portion 1082 while still allowing it to deform. However, it is to be understood that the configuration shown in FIGS. 10D-10E is merely an example, and the scraping portion 1082 and the rod 1082a can have other configurations, such as having multiple points of attachment between the scraping portion 1082 and the rod 1082a. In some embodiments, the ribs 1090 and / or the scraping portion 1082 can fully enclose the rod 1082a.
[0166] FIGS. 10F-10G illustrate additional examples of the differences between when the squeegee 1080 is in rearward motion versus in the neutral position. As shown in FIG. 10F, when the cleaning device is in rearward motion, the squeegee 1080 is deformed such that it extends toward the brushroll 1050. As shown in FIG. 10G, when the cleaning device is not in motion, the squeegee 1080 is in a neutral position and is not as close to the brushroll 1050 relative to its position during rearward motion.
[0167] Beyond the typical brushroll designs are other kinds of brushrolls with alternative configurations. Described herein are a class of brushrolls called “infinity agitators” with more than one inner core surrounded by a larger cleaning material. For example, as seen in FIG. 11, a portion of a cleaning device 10*is depicted. This portion includes a housing 12, a cover 14, and an infinity agitator 20. The infinity agitator 20 features a first inner core 22 and a second inner core 24 each surrounded by a cleaning pad 26. The first inner core 22 and the second inner core 24 can be rotatable, and either core 22, 24 or both cores 22, 24 can be driven by a motor. The cleaning pad 26 can be removable from the first and second inner cores 22, 24. This removal can occur in a number of ways as described herein. Generally, the cleaning pads described herein are tensioned to fit securely around the inner core or cores. For removal, the tension is released, and the cleaning pads can be removed.
[0168] FIGS. 12 and 13 are directed to a variation of a kind of infinity agitator 30 featuring a tensioner 31 disposed on a cover 33. The infinity agitator 30 is similar to agitator 20, and it features first and second inner cores 32, 34 and a cleaning pad 36 surrounding the first and second inner cores 32, 34. When placed around the first and second inner cores 32, 34, the cleaning pad 36 is generally too large to fit tight enough to be drivable via one or more of the inner cores 32, 34. While the cleaning pad 36 is easily removable from this position, seen in FIG. 12, operations therewith can be challenging. The cover 33 can be closed via a pivot 35 or the like, causing the tensioner 31 to push into the cleaning pad 36, as shown in FIG. 13. Now under tension via the tensioner 31, the cleaning pad 36 is secured to the first and second inner cores 32, 34 and can be properly driven during a cleaning operation. The tensioner 31 can have a tip that is rotatable to reduce friction on the cleaning pad 36 when it is driven, and the tensioner 31 can be spring-biased so that over time, if the cleaning pad 36 loosens, the proper amount of tension is always applied thereto by the tensioner 31.
[0169] FIGS. 14-19 are directed to variations of an infinity agitator in which one or more of the inner cores pivot. For example, FIGS. 14-17 feature a variation in which one or more inner cores of a cleaning device can pivot in an upward direction, away from the floor, to free an end thereof. The cleaning pad can be slid off the one or more inner cores via the free end. FIG. 14 features an agitator 40 on a core 42. FIG. 15 features the agitator 40 and core 42 pivoting upward. FIG. 16 features the cleaning pad 44 sliding off of the core 42 in a removal process. FIG. 17 depicts another example of a pivoting core in which a single inner core 52 is pivoted upward away from the housing 50. In this variation, an in other variations described herein, the single inner core 52 can include a driving motor to drive an agitator.
[0170] FIGS. 18 and 19 depict another variation of a setup with one or more pivoting inner cores. The setup includes a first inner core 62 and a second inner core 64 spaced apart in FIG. 18. FIG. 19 depicts a view in which both the first and second inner core 62, 64 are pivoted upward and the second inner core 64 is also pivoted toward the first inner core 62 to ease removal of a cleaning pad. Agitator cores pivotable around more than one range of movement, such as second inner core 64, i.e., upward and inward, are compatible with any variation described herein.
[0171] In some variations, an infinity agitator can include a cassette instead of discrete first and second inner cores. Cassettes are elongated inner cores, which can be movable between an expanded state to tension a cleaning pad and a collapsed state to facilitate removal of the cleaning pad therefrom. This expansion and collapse can occur in a number of ways. For example, some variations depicted herein feature meshable teeth. Such variations are depicted in FIGS. 20-27.
[0172] A first variation of an infinity roll with a cassette is featured in FIGS. 20-22. In FIG. 20, the cassette 72 is in an expanded state, thereby tensioning cleaning pad 74 (referred to as a sleeve) . Tension in this variation is controlled via a side lever 76. The cassette 72, cleaning pad 74, and side lever 76 are removed in FIG. 21. In FIG. 22, the side lever 76 is actuated to collapse the cassette 72 inward. The cleaning pad 74, no longer under tension, can be removed from the cassette.
[0173] A second variation of an infinity roll with a cassette is featured in FIG. 23. The second variations also adapts the pivot described above. In the upper row of FIG. 23, the cassette 82 is in an expanded position via meshable teeth 83. In the expanded position, the cassette 82 has a first width, indicated by the arrows. In the middle row of FIG. 23, the cassette 82 with cleaning pad 84 is pivoted upward. The meshable teeth 83, under tension so as to default to the collapsed state, can be seen beginning to slide outward. In the bottom row of FIG. 23, the cassette 82 and cleaning pad 84 are pivoted upward, and the meshable teeth 83 have sprung outward so as to collapse the cassette 82. In the loosened state, the cleaning pad 84 can be removed from the cassette 82. As shown in the bottom row, the first width of the expanded cassette 82 is compared to a second width of the collapsed cassette 82 via dashed lines.
[0174] A third variation of an infinity roll with a cassette is featured in FIGS. 24-27. In FIG. 24, the cassette 92 is shown in an installed state with cleaning pad 94 wrapped therearound. In FIG. 25, both the cassette 92 and cleaning pad 94 are pivoted upward. In FIG. 26, the entire cassette 92 with the cleaning pas 94 is removed. In FIG. 27, a button 96 on the cassette 92 is actuated to collapse the cassette 92. This transitions the cassette 92 to a collapsed configuration, and the cleaning pad 94 is slid from the cassette 92 without a user being required to directly handle a potentially soiled cleaning pad 94.
[0175] In some embodiments, the cleaning devices described herein are capable of selectively delivering targeted and optionally heated fluid to a cleaning surface. These devices are useful for typical surface cleaning, including carpets and hard floors, furniture and the like, and they are also useful for applications requiring targeted fluid application and / or targeted and heated fluid application. To assist with the targeted aspect, cleaning devices can include a sight assist, such as via a laser diode or LED, to emit a beam of light onto a cleaning surface.
[0176] FIG. 28 depicts a cleaning device emitting a fluid stream onto an illuminated target via a front nozzle. The fluid stream can be optionally heated via an internal heating mechanism located within the cleaning device. The illuminated target can be the creation of an onboard illumination source disposed on the cleaning device, such as a laser diode, LED, etc.
[0177] Internally, certain components contribute to the optionally heated fluid spray from the front nozzle disposed on the cleaning device. An exemplary system is depicted in FIG. 29. The system features a clean water tank, which stores fluid to be emitted by the cleaning device via the front nozzle. Traditional wet / dry devices include nozzles that emit cleaning fluid onto an agitator, the surface to be cleaned, an area proximate either the agitator or surface to be cleaned, or some combination thereof. The clean water tank provides a fluid reservoir from which cleaning fluid can be sourced for such applications, and the same kind of clean water tank can be the source from which fluid is drawn to be emitted by the front nozzle of a cleaning device like the kind depicted in FIG. 28. The clean water tank is in fluid communication with a mechanism with which fluid is drawn and driven to emission from the front nozzle. While traditional spray nozzles may use a simple fluid pump, a concentrated pulse of fluid may be more desirable, especially when the fluid must be sufficiently heated. More will be said about mechanisms to create such pulses below. Following the mechanism, fluid can bypass a region in which it is heated by a heat source, such as a boiler, heating coil, or some other equivalent mechanism. As the fluid flows through the cleaning device, the heat source heats up the fluid to a degree sufficient to improve cleaning. Such temperatures can be, in degrees Fahrenheit, above 120, above 130, above 140, above 150, above 160, etc. Once heated, the fluid can be emitted via a nozzle disposed on the cleaning device. The nozzle is disposed in such a way as to facilitate spray onto a region of a cleaning surface proximate the cleaning device, such as a region located just in front of the cleaning device.
[0178] The arrangement in FIG. 29 is but one set up for an optionally heated fluid spray. The basic mechanisms may be consistent in other systems, but the order of mechanisms may change, and the exact layout from which fluid is sourced, heated, and emitted by a cleaning device can be adjusted. By limiting the distance between mechanisms through deliberate placement and arrangement of mechanisms or by deliberate and intentional fluid routing, however, especially the heat source and the nozzle, heat loss can be reduced so that the fluid is heated to and emitted at substantially similar temperatures. This ensures cleaning devices are operating efficiently.
[0179] FIGS. 30 and 31 depict example driver mechanisms usable with the cleaning devices described herein. FIG. 30 includes a mechanism including a rack and pinion mechanism driven by a motor to draw a certain volume of water from a clean water tank. The driven rack and pinion draws the fluid into a syringe, and when emission is desired, forces the drawn-in fluid out of an outlet in a pulse to target a soiled surface region.
[0180] FIG. 31 depicts a similar system, which uses motor to drive a piston to draw in and emit fluid via a nozzle. A DC motor, gears to change torque, and water inlet are visible in the front view of the system depicted in 3102. A piston mechanism and water outlet are visible in the back view of the system depicted in 3104.
[0181] FIGS. 32 and 33 depict variations of a target system used with cleaning devices described herein. As introduced above, a target system can be useful to illuminate a cleaning surface region that, upon actuation by a user, will be sprayed by fluid emitted from the front nozzle. The spray is intended to provide targeted cleaning power for the surface, such as on a stain, and the target system assists a user to clean the desired region. FIG. 32 depicts a first variation in which a target system comprising an LED is used to illuminate an X-region on a surface. The target system and an accompanying front nozzle can be arranged to align with each other for accurate targeting. FIG. 33 depicts another variation in which multiple target sources are used to illuminate a reticle on a cleaning surface in front of a cleaning device. Generally, such target systems comprise one or more illumination sources, such as laser diodes, LEDs, etc., to emit a pattern onto a cleaning surface in a manner such that, when actuated, a pulse of cleaning fluid is emitted onto the illuminated region.
[0182] As introduced above, a heat source to heat the emitted fluid is desirably placed in close proximity to the nozzle responsible for emitting the fluid. This close proximity minimizes heat loss from supply via the heat source until emission takes place via the nozzle. This close proximity improves efficiency in fluid heating, and smaller heat sources can be used to effect the same results as larger heat sources used in traditional setups. Typically, heat sources are located in a body of a cleaning device, and, once heated, the fluid must be driven down a long stretch of tubing before emission. This leads to inefficiencies. The setup depicted in FIG. 34 mitigates these heat losses by placing a heat source, such as a boiler, directly in the head of the cleaning device. This placement is in close proximity to the nozzle emitting the fluid with only a short length of tubing therebetween. Once heated, the fluid need only to travel the trivial distance to emission, by which point boiler temperature of the fluid and the emission temperature of the fluid are generally equal. This cannot be said for the traditional systems featuring a heat source in the upright body away from any emission nozzle.
[0183] FIG. 35 depicts a cleaning device system 3500 with features described above. The cleaning device 3500 generally includes an upright body placed atop a cleaning head. A handle extends upward from the upright body. Three insets 3502, 3504, and 3506 depicting various components are also highlighted. For example, an inset 3502 depicting components of the cleaning head is shown, and LEDs, a spray nozzle, and a boiler are all depicted. The LEDs are used to generate a target pattern on a cleaning surface, the spray nozzle is used to emit cleaning fluid on the target pattern, and the boiler is used to optionally heat emitted cleaning fluid. A second inset 3504 depicts features of the upright body. These features include a pump set between a pump inlet and a pump outlet. The pump sources fluid via the pump inlet from a clean water tank (not shown) , and the pump supplies sourced fluid via the pump outlet to the cleaning head. The other mechanisms described herein can be used in place of a traditional pump. The third inset 3506 depicts inputs on the handle. To actuate the heated spray, a user can engage with a mechanism located on the cleaning device, such as a trigger-type input located on the handle. The exact input can vary, but depicted in a two-stage button. A half press of the button can illuminate the target system to generate a target pattern on a cleaning surface, and a full press of the button can spray fluid onto the target pattern. The exact inputs can vary. For example, a separate input can exist for optionally heating fluid. While heated fluid in some variations may be the default, in other variations, a user can deliberately select whether they desire heated fluid.
[0184] FIG. 36 depicts an exemplary dock 3600 configured to charge any of the cleaning devices described herein. The dock 3600 includes a receiving tray 3602 configured to receive a head assembly of a cleaning device (not pictured) . As shown in FIG. 36, the receiving tray 3602 is located at the bottom of the dock 3600 and has a sunken area which approximately corresponds to the dimensions of the head assembly. On one side of the receiving tray 3602, a support post 3604 extends upward from the receiving tray 3602. The support post 3604 is configured to secure the cleaning device onto the dock 3600 and provide charge to the cleaning device. The support post 3604 includes a plurality of electrical contacts 3606 which, when in contact with corresponding contacts on the cleaning device, transfers electricity from a wall outlet to the cleaning device. A plug 3608 configured to be plugged into the wall outlet is electrically connected to the contacts 3606. In some embodiments, the cleaning device engages with the dock 3600 such that the head assembly of the cleaning device is positioned within the receiving tray 3602 and the body of the cleaning device is in contact with the support post 3604, with the handle of the cleaning device being positioned on the same side as the support post 3604.
[0185] Certain exemplary implementations have been described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the systems, devices, and methods disclosed herein. One or more examples of these implementations have been illustrated in the accompanying drawings. Those skilled in the art will understand that the systems, devices, and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary implementations and that the scope of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary implementation may be combined with the features of other implementations. Such modifications and variations are intended to be included within the scope of the present invention. Further, in the present disclosure, like-named components of the implementations generally have similar features, and thus within a particular implementation each feature of each like-named component is not necessarily fully elaborated upon.
[0186] Approximating language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as “about, ” “approximately, ” and “substantially, ” are not to be limited to the precise value specified. In at least some instances, the approximating language may correspond to the precision of an instrument for measuring the value. Here and throughout the specification and claims, range limitations may be combined and / or interchanged, such ranges are identified and include all the sub-ranges contained therein unless context or language indicates otherwise.
[0187] One skilled in the art will appreciate further features and advantages of the invention based on the above-described implementations. Accordingly, the present application is not to be limited by what has been particularly shown and described, except as indicated by the appended claims. All publications and references cited herein are expressly incorporated by reference in their entirety.
[0188] What is claimed is:
Claims
1.A cleaning device comprising:an upright body;a cleaning head coupled to the upright body, the cleaning head being movable across a surface to be cleaned, and the cleaning head defining an agitator chamber therein;an agitator disposed within the agitator chamber; anda cover removably coupled to the cleaning head to at least partially define the agitator chamber;wherein the agitator is coupled to a first mounting point located on the cleaning head and to a second mounting point located on the cover; andwherein one of the first mounting point and the second mounting point is configured to rotatably drive the agitator to rotate about a longitudinal axis thereof and to agitate the surface during a cleaning operation.2.The cleaning device of claim 1, wherein the agitator comprises a brushroll having a central core surrounded by one or more of a microfiber material and a bristle material.3.The cleaning device of claim 2, wherein the central core is surrounded by both the microfiber material and the bristle material.4.The cleaning device of claim 3, wherein the brushroll comprises first and second deadzones on respective first and second ends thereof, the first and second deadzones each being absent of bristle material.5.The cleaning device of claim 1, further comprising:a fluid supply tank removably coupled to one of the upright body and the cleaning head; andone or more fluid distributors disposed on the cleaning head and fluidly coupled to the fluid supply tank, the one or more fluid distributors being configured to emit fluid onto at least one of the surface to be cleaned, the agitator, and the cover.6.The cleaning device of claim 5, wherein the one or more fluid distributors comprises a fluid manifold configured to deposit fluid directly onto the agitator.7.The cleaning device of claim 5, wherein the one or more fluid distributors comprises a spray nozzle disposed on top of the cleaning head and configured to emit fluid onto a target region in front of the cleaning head.8.The cleaning device of claim 7, wherein the cleaning head comprises at least one light source configured emit light to illuminate the target region.9.The cleaning device of claim 8, wherein the at least one light source comprises a light-emitting diode (LED) .10.The cleaning device of claim 1, further comprising:a suction inlet disposed in a rear of the agitator chamber; andat least one fluid dispenser disposed in the agitator chamber above the suction inlet, the at least one fluid dispenser being configured to emit fluid directly onto the agitator.11.The cleaning device of claim 10, further comprising a wiper disposed between the suction inlet and the at least one fluid dispenser, the wiper extending into the agitator and configured to evenly distribute fluid supplied to the agitator by the at least one fluid dispenser as the agitator is rotatably driven.12.The cleaning device of claim 10, further comprising a comb disposed between the suction inlet and the at least one fluid dispenser.13.A cleaning device comprising:an upright body; anda cleaning head coupled to the upright body, the cleaning head defining an agitator chamber therein, the cleaning head comprising:a housing at least partially defining the agitator chamber,an arm extending from the housing, the arm including a first rotatable mount extending therefrom into the agitator chamber,a cover removably coupled to the housing and at least partially defining a portion of the agitator chamber, the cover including a second rotatable mount extending therefrom into the agitator chamber,an agitator coupled to each of the first and second rotatable mounts and configured to rotate therewith to agitate a surface,wherein one of the first and second rotatable mounts is operatively coupled to a motor such that it can be driven by the motor to rotationally drive the agitator.14.The cleaning device of claim 13, wherein the cover forms a top, a front, and a side of the agitator chamber.15.The cleaning device of claim 14, wherein the second rotatable mount is disposed at a side of the agitator chamber.16.The cleaning device of claim 13, further comprising an actuator disposed on the housing and configured to decouple the cover from the housing upon actuation.17.The cleaning device of claim 16, wherein actuation of the actuator is configured to laterally eject the cover from the housing in a direction substantially parallel to a rotational axis of the agitator.18.The cleaning device of claim 13, wherein an outer side surface of the cleaning head is within 3 mm of the agitator when the agitator is mounted to the first and second rotatable mounts.19.The cleaning device of claim 13, wherein the agitator comprises a brushroll having a central core surrounded by one or more of a microfiber material and a bristle material.20.The cleaning device of claim 19, wherein the central core is surrounded by both the microfiber material and the bristle material.21.The cleaning device of claim 20, wherein the brushroll comprises first and second deadzones on respective first and second ends thereof, the first and second deadzones each being absent of bristle material.22.A cleaning device, comprising:an upright body;a cleaning head operably coupled to the upright body, the cleaning head defining an agitator chamber therein, the cleaning head comprising:a housing, andan agitator cover coupled to the housing, the agitator cover at least partially defining top, front, and side surfaces of the cleaning head; andan agitator disposed within the agitator chamber and configured to operably couple to the housing and to the agitator cover, the agitator being configured to rotate about a longitudinal axis thereof during a cleaning operation, the agitator comprising cleaning material on an outer surface thereof,wherein a portion of the cleaning material is configured to extend past an outermost surface of the cleaning head when the agitator is rotated during a cleaning operation.23.The cleaning device of claim 22, wherein the agitator cover has at least one side surface that extends rearward beyond the agitator chamber and overlaps with a side of the housing.24.The cleaning device of claim 23, wherein the at least one side surface comprises a depression extending into the side of the housing, the depression configured to increase structural support of the agitator cover.25.The cleaning device of claim 24, wherein the depression has an elongate ovular shape.26.The cleaning device of claim 22, wherein the agitator cover defines a lateral gap in a sidewall thereof, the outermost surface of the cleaning head being an outermost surface of the sidewall, and wherein the portion of the cleaning material is configured to extend through the lateral gap beyond the outermost surface of the sidewall.27.The cleaning device of claim 26, wherein an inner surface of the sidewall comprises an agitator mount, and wherein the agitator is configured to operably couple to the agitator cover via the agitator mount.28.The cleaning device of claim 22, wherein the agitator comprises a mount end and a driven end each disposed along the longitudinal axis thereof, and wherein the mount end is configured to operably couple to the agitator cover.29.The cleaning device of claim 28, wherein the mount end is translatable along the longitudinal axis under tension relative to the driven end.30.The cleaning device of claim 29, wherein the mount end is translatable between a first position in which the mount end extends laterally past the portion of the cleaning material and a second position in which the mount end is recessed within the agitator.31.The cleaning device of claim 30, wherein the agitator is configured to operably couple with the agitator cover when the mount end is in the second position.32.The cleaning device of claim 22, wherein the portion of the cleaning material includes a plurality of bristles.33.The cleaning device of claim 22, wherein the portion of the cleaning material includes microfiber.34.A cleaning device, comprising:an upright body;a cleaning head having an agitator cavity disposed therein; andan agitator mounted within the agitator cavity, the agitator being configured to rotate about a longitudinal axis thereof during a cleaning operation, the agitator comprising a plurality of bristles on an outer surface thereof, wherein the plurality of bristles include at least one bristle configured to extend past an outermost surface of the cleaning head when the agitator is rotated during a cleaning operation.35.A cleaning device, comprising:an upright body including a suction source; anda head operably coupled to the upright body and configured to move across a surface to be cleaned, the head defining an agitator chamber, the head comprising:a suction nozzle in fluid communication with the suction source, the suction nozzle configured to intake fluid and debris,an agitator disposed in the agitator chamber and configured to agitate the surface to be cleaned,a removable cover removably coupled to the head and at least partially defining the agitator chamber,a first fluid dispenser disposed in the agitator chamber separate from the removable cover and configured to emit fluid onto the agitator, anda second fluid dispenser disposed on the head and configured to emit fluid onto a target region located forward of the head.36.The cleaning device of claim 35, wherein the agitator comprises a brushroll configured to rotate around a brushroll axis.37.The cleaning device of claim 36, wherein the first fluid dispenser comprises a drip bar extending along the brushroll, the drip bar being configured to emit fluid onto an outer surface of the brushroll.38.The cleaning device of claim 36, wherein the brushroll comprises;a first end region, a second end region, and a middle region disposed between the first and second end regions;a microfiber material disposed on each of the first and second end regions and the middle region; anda bristle material disposed on the middle region, wherein the first and second end regions are devoid of bristles.39.The cleaning device of claim 35, wherein the head further comprises a light source configured to direct light onto the target region forward of the cleaning head.40.The cleaning device of claim 39, wherein the light source comprises an LED.41.The cleaning device of claim 35, wherein the second fluid dispenser is separate from the removable cover such that the removable cover is removable without removal of the second fluid dispenser.42.The cleaning device of claim 35, wherein the second fluid dispenser is disposed on the removable cover such that the second fluid dispenser is removable with the removable cover.43.The cleaning device of claim 35, wherein the removable cover defines at least a portion of a sidewall of the head.44.The cleaning device of claim 43, wherein the agitator comprises a brushroll, and wherein the brushroll is rotatably mounted to the removable cover at a first end thereof.45.An agitator, comprising:a first core rotatable about a first rotational axis;a second core rotatable about a second rotational axis, the second core being offset from the first core; anda cleaning material sleeve disposed around each of the first core and the second core,wherein at least one of the first core and the second core is configured to rotate to drive the cleaning material sleeve to rotate about the first core and the second core, andwherein at least one of the first core and the second core is pivotable to reduce tension in the cleaning material sleeve so that it is removable from the first core and the second core.46.An agitator, comprising:an elongate core movable between an extended position and a collapsed position; anda cleaning material sleeve disposed around an exterior of the elongate core,wherein the cleaning material sleeve is tensioned and secured to the elongate core when the elongate core is in the extended position, andwherein the cleaning material sleeve is loose and unsecured from the elongate core when the elongate core is in the extended position.47.A cleaning device, comprising:an upright body containing a fluid supply tank configured to store fluid; anda cleaning head coupled to the upright body, the cleaning head being configured to move across a surface to be cleaned, the cleaning head including:at least one light configured to emit a beam onto a target region of the surface to be cleaned, the target region being located in front of the cleaning head, andat least one nozzle configured to emit fluid sourced from the fluid supply tank onto the target region.48.A cleaning device, comprising:an upright body containing a fluid supply tank configured to store fluid; anda cleaning head coupled to the upright body, the cleaning head being configured to move across a surface to be cleaned, the cleaning head including:at least one nozzle configured to emit fluid sourced from the fluid supply tank to a target region of the surface to be cleaned,a fluid line disposed in an interior of the cleaning head, the fluid line being configured to transport fluid sourced from the fluid supply tank to the at least one nozzle, anda heating element disposed in the interior of the cleaning head proximate the fluid line, the heating element being configured to heat fluid flowing through the fluid line prior to the fluid being emitted from the at least one nozzle.49.A cleaning device, comprising:a body;a cleaning head operably coupled to the body, the cleaning head defining an agitator chamber therein; andan agitator disposed in the agitator chamber, the agitator comprising a driven end and a mount end opposite the driven end,wherein the driven end is configured to operably coupled to a driver disposed in one of the body and the cleaning head configured to drive the agitator to rotate about a longitudinal axis thereof; andwherein the mount end is movable under tension along the longitudinal axis relative to the driven end.50.The cleaning device of claim 49, wherein the agitator comprises a spring configured to bias the mount end away from the driven end.51.The cleaning device of claim 49, wherein the mount end comprises a touchpoint on an end thereof, the touchpoint configured to remain free of fluid, dirt, and debris during a cleaning operation.52.The cleaning device of claim 49, wherein the agitator comprises a brushroll having a central core surrounded by one or more of a microfiber material and a bristle material.53.The cleaning device of claim 52, wherein the central core is surrounded by both the microfiber material and the bristle material.54.The cleaning device of claim 53, wherein the brushroll comprises first and second deadzones on respective first and second outer regions thereof, the first and second deadzones each being absent of bristle material.55.A cleaning device, comprising:a body;a cleaning head operable coupled to the body, the cleaning head defining an agitator chamber therein; andan agitator disposed within the agitator chamber and configured to rotate about a longitudinal axis thereof to agitate a surface to be cleaned, the agitator comprising a first end located along the longitudinal axis and configured to couple with a drive element disposed in the cleaning head, and a second end located along the longitudinal axis and configured to couple with a mount disposed on the cleaning head,wherein the drive element is configured to rotate the agitator about the longitudinal axis via torque applied to the first end; andwherein the second end is movable under tension along the longitudinal axis relative to the first end.56.The cleaning device of claim 55, wherein the agitator comprises a spring configured to bias the second end away from the first end.57.The cleaning device of claim 55, wherein the mount end comprises a touchpoint on and end thereof, the touchpoint configured to remain free of fluid, dirt, and debris during a cleaning operation.58.The cleaning device of claim 55, wherein the agitator comprises a brushroll having a central core surrounded by one or more of a microfiber material and a bristle material.59.The cleaning device of claim 58, wherein the central core is surrounded by both the microfiber material and the bristle material.60.The cleaning device of claim 59, wherein the brushroll comprises first and second deadzones on respective first and second outer regions thereof, the first and second deadzones each being absent of bristle material.61.The cleaning device of claim 55, wherein the cleaning head comprises an actuator disposed on a sidewall thereof, the actuator being actuable to simultaneously cause a removable cover to disengage from the cleaning head and from the second end of the agitator.62.A method, comprising:actuating an actuator on a cleaning device to simultaneously cause:a removable cover on a cleaning head of the cleaning device to disengage from and translate laterally in a first direction relative to the cleaning head,the removable cover to disengage an agitator at a first end thereof, andthe first end of the agitator to translate under tension in the first direction so that the first end of the agitator extends beyond a body of the agitator in the first direction; andmoving the agitator via the extended first end in the first direction to fully disengage the agitator from a drive element of the cleaning device.63.The method of claim 62, wherein the cleaning head defines an agitator chamber therein, the agitator being removably engaged within the agitator chamber.64.The method of claim 62, wherein the actuator comprises a button disposed on the cleaning head.65.The method of claim 64, wherein actuating the actuator comprises pushing the button in a second direction opposite the first direction.66.The method of claim 62, wherein the removable cover comprises at least one mount configured to support the agitator during rotation thereof.67.The method of claim 62, wherein the first end of the agitator includes a spring-loaded touchpoint.68.The method of claim 62, wherein a second end of the agitator includes a driven end configured to removably engage with the drive element of the cleaning device, the drive element comprising a motor.69.A method, comprising:moving an agitator in a first direction to engage a first end of the agitator with a drive element of a cleaning device, the agitator being disposable within an agitator chamber of the cleaning device;translating a cover a first distance in the first direction to simultaneously cause:the cover to engage with a second end of the agitator opposite the first end, the second end being configured to compress in the first direction upon engagement with the cover; andthe cover to engage with a cleaning head of the cleaning device, the cover and cleaning head at least partially defining the agitator chamber, wherein the first direction is a lateral direction relative to the cleaning head.70.The method of claim 69, wherein the first end of the agitator includes a driven end configured to engage with the drive element of the cleaning device, the drive element comprising a motor.71.The method of claim 69, wherein the second end of the agitator includes a spring-loaded touchpoint configured to compress under force in the first direction and to extend under tension in a second direction opposite the first direction.72.The method of claim 69, wherein the cover comprises at least one mount configured to support the second end of the agitator during rotation thereof.73.A cleaning device, comprising:a suction source configured to draw in waste and debris into an upright cleaning body coupled to the cleaning device, andan actuator configured to control one or more operations during a cleaning process;at least one fluid nozzle configured to emit fluid onto a target region located forward of the cleaning device,a light configured to highlight the target region, andan agitator configured to rotate about a longitudinal axis thereof to agitate a surface to be cleaned,wherein the actuator is movable between:a first stage in which the light is activated to highlight the target region,a second stage in which the at least one fluid nozzle emits fluid onto the target region, the suction source operates to draw waste into the upright cleaning body, and the agitator rotates at a first rotational speed, anda third stage in which the suction source is inoperable and the agitator rotates at a second rotational speed greater than the first rotational speed.74.The cleaning device of claim 73, wherein the actuator comprises a trigger disposed on an upright handle.75.The cleaning device of claim 74, wherein the trigger comprises a three-stage trigger depressible at three distances corresponding to each of the first, second, and third stages of actuation.76.The cleaning device of claim 73, further comprising a cleaning head configured to move across a surface to be cleaned, wherein the light is centrally disposed on a top of the cleaning head.77.The cleaning device of claim 73, further comprising a cleaning head configured to move across a surface to be cleaned, wherein the light is offset on a side of the cleaning head.78.The cleaning device of claim 73, further comprising:a cleaning head defining an agitator chamber and configured to move across a surface to be cleaned, wherein the agitator is disposed within the agitator chamber;a spray bar disposed within the agitator chamber and configured to emit fluid directly onto the agitator.79.The cleaning device of claim 78, wherein the cleaning head further comprises a removable cover at least partially defining the agitator chamber.80.The cleaning device of claim 79, wherein the removable cover comprises at least one mount configured to support the agitator during rotation thereof.81.The cleaning device of claim 79, wherein the spray bar is separate from the removable cover.82.A cleaning device, comprising:an upright body;a cleaning head operably coupled to the upright body and configured to move across a surface to be cleaned in a forward direction and a backward direction opposite the forward direction, the cleaning head comprising:a brushroll disposed therein and configured to rotate during a cleaning operation to agitate the surface to be cleaned, anda reversible squeegee extending from the cleaning head, the reversible squeegee including a flexible deforming portion and a scraping portion attached to the flexible deforming portion,wherein the scraping portion is configured to fold underneath the flexible deforming portion when the cleaning head moves in the forward direction and the scraping portion is configured to extend away from the cleaning head when the cleaning head moves in the backward direction.83.The cleaning device of claim 82, further comprising a plurality of ribs coupled to the scraping portion, the plurality of ribs being configured to contact the surface to be cleaned when the cleaning head moves in the backward direction.84.The cleaning device of claim 83, wherein the plurality of ribs comprises three ribs evenly disposed from each other.85.The cleaning device of claim 84, wherein a first rib is disposed in at a left outer edge of the scraping portion, a second rib is disposed at a right outer edge of the scraping portion, and a third rib is disposed evenly between the first rib and the second rib.86.The cleaning device of claim 83, further comprising a support rod coupled to each of the plurality of ribs, the support rod being configured to improve rigidity of the scraping portion.87.The cleaning device of claim 82, wherein the reversible squeegee is disposed beneath a suction inlet of the cleaning head.88.The cleaning device of claim 82, wherein the reversible squeegee is spaced from the brushroll when the cleaning head moves in both the forward direction and the backward direction.89.A reversible squeegee for a cleaning device, comprising:a flexible deforming portion configured to attach to a cleaning device; anda scraping portion attached to the flexible deforming portion, the scraping portion configured to contact and scrape a surface to be cleaned;wherein the scraping portion is configured to fold underneath the flexible deforming portion toward the cleaning device and contact the surface to be cleaned with a first region thereof when the cleaning device moves in a first direction; andwherein the scraping portion is configured to unfold and extend away from the cleaning device and contact the surface to be cleaned with a second region thereof different than the first region thereof when the cleaning device moves in a second direction opposite the first direction.90.The cleaning device of claim 89, further comprising a plurality of ribs coupled to the scraping portion, the plurality of ribs being configured to contact the surface to be cleaned when the cleaning device moves in the second direction.91.The cleaning device of claim 90, wherein the plurality of ribs comprises three ribs evenly disposed from each other.92.The cleaning device of claim 91, wherein a first rib is disposed in at a left outer edge of the scraping portion, a second rib is disposed at a right outer edge of the scraping portion, and a third rib is disposed evenly between the first rib and the second rib.93.The cleaning device of claim 90, further comprising a support rod coupled to each of the plurality of ribs, the support rod being configured to improve rigidity of the scraping portion.94.The cleaning device of claim 89, wherein the reversible squeegee is disposed beneath a suction inlet of the cleaning device.95.The cleaning device of claim 89, further comprising a brushroll attached to the cleaning device, wherein the reversible squeegee is spaced from the brushroll when the cleaning device moves in both the first direction and the second direction.
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