The present disclosure relates generally to a cleaning attachment for a rotary tool that self-dispenses a cleaning solution.
Manual and powered cleaning tools are widely available as specialized devices for cleaning only. However, a need remains for improved cleaning devices and methods employing handheld rotary tools. More particularly, there remains a need for more effective, easy-to-use cleaning attachments for rotary tools. Additionally, many manual and powered cleaning tools must be used with fluid cleaning agents such as soaps to effectively clean a desired surface. Thus, cleaning operations are often cumbersome, multi-step processes requiring separate dispensing and spreading of a cleaning agent prior to cleaning or scrubbing using the cleaning tool.
Accordingly, improved cleaning attachments and tools are desired in the art. In particular, cleaning attachments and tools which provide integrated soap dispensing would be advantageous.
Aspects and advantages of the invention in accordance with the present disclosure will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the technology.
In accordance with one embodiment, a cleaning attachment is provided. The cleaning attachment includes a housing, a plurality of bristles, and a drive shaft extending from the housing in an axial direction, the drive shaft being coupled to the housing such that rotation of the drive shaft causes rotation of the housing. The housing includes a reservoir, a valve for dispensing the fluid from the reservoir, and at least one resilient element surrounding an axis defined by the drive shaft. Translation of the drive shaft along the axial direction causes compression of the resilient element, and compression of the resilient element causes the valve to open to dispense fluid from the reservoir.
In accordance with another embodiment, a rotary tool is provided. The rotary tool includes a cleaning attachment and a rotary tool having a motor, power source, and a chuck configured to receive the drive shaft of the cleaning attachment. A drive shaft of the cleaning attachment is disposed within a longitudinal bore of the chuck.
These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the technology and, together with the description, serve to explain the principles of the technology.
A full and enabling disclosure of the present invention, including the best mode of making and using the present systems and methods, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures, in which:
Reference now will be made in detail to embodiments of the present invention, one or more examples of which are illustrated in the drawings. The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other implementations. Moreover, each example is provided by way of explanation, rather than limitation of, the technology. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present technology without departing from the scope or spirit of the claimed technology. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present disclosure covers such modifications and variations as come within the scope of the appended claims and their equivalents. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention.
As used herein, the terms “first”, “second”, and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components. The singular forms “a,” “an,” and “the” include plural references unless the context clearly dictates otherwise. The terms “coupled,” “fixed,” “attached to,” and the like refer to both direct coupling, fixing, or attaching, as well as indirect coupling, fixing, or attaching through one or more intermediate components or features, unless otherwise specified herein. As used herein, the terms “comprises,” “comprising.” “includes,” “including,” “has,” “having” or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of features is not necessarily limited only to those features but may include other features not expressly listed or inherent to such process, method, article, or apparatus. Further, unless expressly stated to the contrary, “or” refers to an inclusive-or and not to an exclusive-or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).
Terms of approximation, such as “about,” “generally,” “approximately,” or “substantially,” include values within ten percent greater or less than the stated value. When used in the context of an angle or direction, such terms include within ten degrees greater or less than the stated angle or direction. For example, “generally vertical” includes directions within ten degrees of vertical in any direction, e.g., clockwise or counter-clockwise.
Benefits, other advantages, and solutions to problems are described below with regard to specific embodiments. However, the benefits, advantages, solutions to problems, and any feature(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential feature of any or all the claims.
In general, the present invention is directed to a soap dispensing cleaning attachment for a rotary tool, e.g., a soap dispensing scrubber. The soap dispensing attachment includes bristles and a shaft for coupling to a rotary tool so that the rotary tool may cause rotation of the attachment and bristles. The attachment housing further includes a reservoir for a fluid, e.g., cleaning agent, a valve surrounded by the bristles for dispensing the fluid during a cleaning operation, and at least one resilient element configured to enable the shaft to translate along an axial direction and/or otherwise increase pressure in the reservoir to cause the valve to open to dispense the fluid.
Referring now to the drawings,
The housing 12 serves as a reservoir 20 for a fluid, e.g., liquid soap, surfactant, or other cleaning solution, or any other desirable fluid. The fluid may be dispensed from the reservoir 20 through a valve 22 in the housing 12 during a scrubbing operation of the scrubber attachment 10, as will be described in further detail below.
The housing 12 may generally include two primary components: a housing body 30 and a cap assembly 32. The housing body 30 and the cap assembly 32, when coupled together, form the reservoir 20 therebetween. In some aspects, the housing 12 may have a generally circular or ob-round cross-sectional shape, as shown in
The housing body 30 may have a sidewall 34 forming a circumference of the housing body 30 and an endwall 36 at one end thereof. An opposite end of the housing body 30 may be open, e.g., to form part of the reservoir 20. The sidewall 34 may be generally perpendicular to the axis L.
The endwall 36 of the housing body 30 may have an outer surface 38 to which the bristles 16 are coupled, as will be described in further detail below. In some aspects of the invention, the endwall 36 may have a generally convex profile extending away from the sidewall 34. For instance, the endwall 36 may have a central portion 40 that is disposed generally perpendicular to the sidewall 34 and one or more side portions 42 extending at an angle between the central portion 40 and the sidewall 34. For instance, the side portion 42 may be disposed at an acute angle between the central portion 40 and the sidewall 34. The central portion 40 may include the valve 22 therein. For instance, one or more couplers 44 may be provided to couple the valve 22 with the endwall 36. The coupler 44 may be in the form of a valve cover.
The housing body 30 may be coupled with the cap assembly 32 in a removable or nonremovable coupling. For instance, the housing body 30 and the cap assembly 32 may be removably coupled together by a threaded coupling, latch, or other suitable fluid-tight removable coupling. In other aspects, the housing body 30 and the cap assembly 32 may be snap-fit, press-fit, molded, adhered, or otherwise coupled in a nonremovable manner such that the housing body 30 and cap assembly 32 are formed by one-time assembly.
For instance,
The drive shaft 14 may be coupled with the cap assembly 32 of the housing 12. For instance, in some aspects, the drive shaft 14 extend through an opening 72 (best shown in
The drive shaft 14 may also be coupled directly to the cap assembly 32, e.g., as illustrated in
In addition to rotation, the drive shaft 14 is configured to translate along the axis L relative to the reservoir 20, i.e., towards and away from the bristles 16 along the axis L. The scrubber attachment 10 may be provided with one or more resilient elements 100 configured to enable translation of the drive shaft 14 along the axis L. The resilient element(s) 100 may include a spring, such as a coil spring, one or more flexible elements formed from a flexible material such as a thermoplastic material, or a combination thereof.
In some aspects, as illustrated in
In some aspects of the invention, as illustrated in
The overmold 104 may have a flex region 110 that is flexible to permit motion, e.g., translation along the axis L. The flex region 110 may surround the shaft opening 106. For instance, the flex region 110 may be radially aligned with at least a portion the cap endwall 60 relative to the axis L. In some aspects, the flex region 110 may have an undulating profile including one or more peaks 112 and one or more valleys 114. For instance, two peaks 112 may be arranged on either side of a valley 114, and an inner peak 112 may surround the shaft 14. The flexible and resilient material of the peak(s) 112 and valley(s) 114 of the flex region 110 can permit the shaft 14 to translate along the axis L towards the bristles 16 of the housing 12, similar to a plunger, and then return to its resting position in a direction away from the bristles 16. However, it is to be understood that the overmold 104 is not required to have an undulating profile; for instance, as illustrated in
In
In
The housing 12 of the scrubber attachment 10 includes a valve 22 for dispensing fluid from the reservoir 20. The valve 22 may be a two-way valve such that the valve 22 may dispense fluid out from the reservoir 20 and permit ingress of, e.g., air, into the reservoir 20, to prevent a vacuum within the reservoir 20. For instance, the valve 22 may be formed from a piece of elastomeric material and have a cross-shaped valve opening 24 or other suitable opening shape. The valve 22 may be disposed along the axis L at an opposite side of the housing 12 from the drive shaft 14.
The valve 22 may be opened or activated for dispensing by compression of one or more of the resilient element(s) described above. For example, when the drive shaft 14 translates along the axis L in a direction of the valve 22, i.e., toward the valve 22, pressure increase within the reservoir 20 may cause the valve 22 to open to dispense fluid from the reservoir 20. In some aspects, the drive shaft 14 may contact the valve 22 to open the valve opening 24. In other aspects, the drive shaft 14 is not required to physically contact the valve 22 to cause the valve opening 24 to open to dispense fluid. In some aspects of the invention, e.g., illustrated in
The housing 12 of the scrubber attachment 10 may also be provided with bristles 16 for performing a scrubbing operation. The bristles 16 may be disposed surrounding the valve 22. The bristles 16 may be inserted into one of a plurality of bristle receiving openings 18 in the housing 12 and fixed within the openings 18, e.g., by adhesive, interference fit, or other suitable means. The bristles 16 generally extend outward from the housing 12 in a direction opposite the drive shaft 14 and parallel to the axis L or at an acute angle relative to the axis L. For instance, the bristles 16 may extend in a direction generally perpendicular to a surface of the housing 12, as will be described in further detail below. The bristles 16 may be formed of either stiff or flexible plastic or natural materials.
The scrubber attachment 10 may be coupled with a rotary tool, e.g., a powered rotary tool having a motor powered by an electrical power source to cause rotation of a tool head. The tool head may include a chuck, e.g., a cylindrical chuck, having a longitudinal bore therein. The longitudinal bore may receive the drive shaft 14 of the scrubber attachment therein. In some aspects, the longitudinal bore may have a hexagonal cross-sectional shape, and the drive shaft 14 may be a hexagonal shaft (“hex shaft”) sized to fit tightly within the bore of the chuck, e.g., by friction or interference fit. The tightness of the fit between shaft 14 and the bore is sufficient to support the weight of scrubber attachment 10. While a hexagon may be a preferred shape for the cross-section of the shaft and bore, other shapes such as a triangle, rectangle, pentagon, and octagon are within the scope of the present invention.
Further aspects of the invention are provided by one or more of the following embodiments:
A cleaning attachment for a rotary tool includes a housing, a plurality of bristles coupled to the housing, and a drive shaft extending from the housing in an axial direction, the drive shaft being coupled to the housing, whereby rotation of the drive shaft causes rotation of the housing. The housing includes a reservoir configured to contain a fluid, a valve for dispensing the fluid from the reservoir, and at least one resilient element surrounding an axis defined by the drive shaft. Translation of the drive shaft along the axial direction causes compression of the resilient element, and wherein compression of the resilient element causes the valve to open to dispense fluid from the reservoir.
The cleaning attachment of any one or more of the embodiments, the housing having a body and a cap assembly, the reservoir being formed between the body and the cap.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element comprises a flex region forming at least a portion of the cap assembly.
The cleaning attachment of any one or more of the embodiments, wherein the flex region comprises undulating profile having at least one peak and at least one valley.
The cleaning attachment of any one or more of the embodiments, wherein the flex region comprises a convex profile.
The cleaning attachment of any one or more of the embodiments, wherein the cap assembly comprises an O-ring seal.
The cleaning attachment of any one or more of the embodiments, the cap comprising a collar and an overmolded portion; wherein the resilient element is formed from the overmolded portion.
The cleaning attachment of any one or more of the embodiments, further comprising a bracket configured to couple the cap and the drive shaft.
The cleaning attachment of any one or more of the embodiments, the at least one resilient element further including a spring between the bracket and cap assembly.
The cleaning attachment of any one or more of the embodiments, the at least one resilient element including a spring between the cap and the housing.
The cleaning attachment of any one or more of the embodiments, the cap assembly being removably coupled to the body.
The cleaning attachment of any one or more of the embodiments, the cap assembly being irremovably coupled to the body, the cap assembly further comprising a port for filling the reservoir.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element extends around a circumference of housing.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element comprises an elastomeric material forming a sidewall of the housing.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element is inside the reservoir.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element comprises a coil spring.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element is seated on an endwall of the reservoir at a bottom end of the reservoir opposite the shaft.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element comprises a coil spring.
The cleaning attachment of any one or more of the embodiments, wherein the at least one resilient element comprises a ring of compressible thermoplastic material.
A rotary tool includes a motor, a power source electrically coupled to the motor, a chuck coupled to the motor and having a longitudinal bore therein, and a cleaning attachment. The cleaning attachment includes: a housing, a plurality of bristles coupled to the housing, and a drive shaft extending from the housing in an axial direction, the drive shaft being coupled to the housing, whereby rotation of the drive shaft causes rotation of the housing. The housing includes a reservoir configured to contain a fluid, a valve for dispensing the fluid from the reservoir, and at least one resilient element surrounding an axis defined by the drive shaft; wherein the drive shaft is disposed within the longitudinal bore of the chuck so that rotation of the chuck causes rotation of the housing.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.