JP2008522771A - Cleaning device with motor - Google Patents

Abstract

  A motorized cleaning tool (12) for cleaning a surface with a cleaning substrate (50) is provided. This motorized cleaning implement comprises the buffer pad connected to a motor (521) that can reciprocate the buffer pad (22). A cleaning substrate (50) with pockets (350) is attached to the buffer pad.

Description

  The present invention relates to the field of cleaning instruments, and in particular to the field of multipurpose cleaning instruments useful for cleaning hard surfaces such as floors, sinks, bathtubs, shower walls and the like.

  The literature is filled with products that can clean flat hard surfaces such as ceramic tile floors, hardwood floors, countertops, etc. In the context of cleaning flat surfaces, particularly in the context of cleaning a floor with a cleaning substrate, a number of instruments are described that have an elongated handle that is rotatably connected to a mop head by a universal joint. Has been. An example of such a device is a SWIFFER® cleaning device. The mop heads of these instruments typically include a rigid support plate connected to the handle via a universal joint and a “buffer” or “cushion” facing the surface to be cleaned under the rigid support plate. With pads. The “buffer” pad minimizes the risk that the flat surface will be damaged during the cleaning operation. To clean a flat surface, the user first begins with a disposable dry cleaning sheet (eg, SWIFFER® cleaning sheet) or a disposable absorbent cleaning wipe or pad (eg, SWIFFER WET (registered trademark) wet type cleaning pad) is attached to a holding structure with slits arranged on the upper surface of the support plate so that the cleaning substrate is “sandwiched” between the buffer pad and the surface to be cleaned. The flat surface is then wiped with the selected cleaning substrate. This type of instrument, used in combination with a disposable cleaning substrate, is easy to use, especially after the flat surface is cleaned, with limited contact between the user's hand and the cleaning substrate It has been shown to be hygienic. Nevertheless, the rigid support plate of this type of instrument does not allow the user to effectively or efficiently clean curved surfaces, particularly inwardly curved concave surfaces.

  The literature is also full of products that can clean curved surfaces such as sinks and bathtubs. Some of these products contain a cleaning solution that is sprinkled directly onto the cleaning surface and then rinsed with water. This minimizes the effort required by the user, but they generally do not provide the same cleaning effect as pressing the cleaning substrate against the cleaning surface and wiping it. In order to enhance the cleaning performance, some cleaning products include a cleaning substrate that is used in combination with the cleaning product. The most common of these is a sponge. To clean a curved surface, the user typically wipes the surface by holding the sponge in his hand and applying a cleaning solution to the sponge or directly onto the cleaning surface. After cleaning the surface, the user typically rinses and dries the sponge so that it can be reused. Sponge materials (either natural or synthetic) are flexible and as a result easily adapt to the cleaning surface. However, this type of reusable substrate becomes unhygienic over time, and depending on the “aggressiveness” of the cleaning solution used, users wear gloves to protect their hands It becomes necessary to do.

  Accordingly, it is an object of the present invention to provide a cleaning implement that can be used with a disposable cleaning substrate to clean both flat and curved surfaces in a convenient and sanitary manner.

  It is also an object of the present invention to provide a motorized cleaning implement that can be used with a disposable cleaning substrate to clean both flat and / or curved surfaces with minimal effort in a convenient and sanitary manner. Is the purpose.

  In one embodiment, the present invention also relates to a motor-equipped cleaning device for cleaning a surface, wherein the cleaning device includes a buffer pad for holding a cleaning substrate, and the motor is provided with a buffer pad by the motor. A motor operably connected to the buffer pad for reciprocal movement, and a disposable cleaning substrate detachably connected to at least a portion of the buffer pad.

  In one embodiment, the present invention is a cleaning implement with a motor comprising a buffer pad for holding a cleaning substrate and a motor for moving the buffer pad in a reciprocating motion with respect to the motor by the motor. It also relates to a method of cleaning a surface, the method comprising supplying a cleaning substrate, attaching the cleaning substrate to at least a portion of the buffer pad, and bringing the cleaning substrate into contact with the surface to be cleaned It consists of processes.

Detailed Description of the Preferred Embodiment

  While not intended to limit the utility of the cleaning implements and substrates herein, a brief description of their use is believed to be useful in explaining the present invention.

  Modern cleaning instruments use disposable cleaning substrates such as sheets or absorbent pads that are separably attached to the head of the cleaning instrument and can be easily discarded and replaced after it becomes dirty. These cleaning instruments include a handle that is rotatably connected to the mop head. These mop heads are substantially square and include a rigid support plate coupled to the handle and a “buffer” pad attached to the bottom surface of the mop head. This buffer pad made of flexible material minimizes the risk of scratching the surface during the cleaning operation. The cleaning substrate is wrapped around a mop head and attached to a slitted structure placed on top of the support plate. An example of such a “latest” cleaning instrument is the SWIFFER® cleaning instrument sold by The Procter & Gamble Company and shown in FIG. This type of instrument is particularly applicable for cleaning large planar surfaces such as floors, walls or ceilings. However, the size, shape and stiffness of the mop head does not allow the user to clean other types of surfaces such as sinks or bathtubs, or “narrow” surfaces such as the floor between the wall and the toilet seat.

  In order to clean curved and / or narrow surfaces, the user can sprinkle the cleaning solution directly onto the surface without wiping the surface. However, better cleaning results are obtained when the surface is wiped with a cleaning substrate. The user can sprinkle the cleaning solution on or on the cleaning substrate and then wipe the surface with the cleaning substrate. The most common cleaning substrate is an absorbent sponge, which is deformable and consequently conforms to a curved surface. However, these conventional sponges require the user to wear plastic gloves to avoid contact with cleaning solutions and / or dirt absorbed by the sponge. The effort required by the user to remove the strong stains makes the cleaning job difficult and inconvenient. In addition, since these sponges are intended to be reusable, after repeated use, the sponges themselves become soiled and become unsanitary or annoying.

  As is apparent from the detailed disclosure that follows, the present invention is directed to the foregoing discussion.

  All documents cited herein are hereby incorporated by reference in the relevant part, but the citation of any document should not be construed as an admission that it is prior art with respect to the present invention.

  It is understood that any maximum numerical limitation set forth throughout this specification will include any lower numerical limitation as if such lower numerical limitation was expressly set forth herein. Should. The minimum numerical limits set forth throughout this specification include all higher numerical limits as if such large numerical limits were expressly set forth herein. The numerical ranges set forth throughout this specification are expressly set forth herein, including all narrower numerical ranges that fall within such wider numerical ranges, and all such narrower numerical ranges. Included as if.

  All percentages, ratios, and percentages in the specification, examples, and claims are based on weight unless otherwise specified, and all numerical limitations are unless otherwise specified. , With a normal degree of accuracy acceptable in the art.

  As will be described more fully hereinafter, the present invention, in its most preferred form, comprises a cleaning instrument comprising a mop head that is at least partially deformable and a disposable cleaning substrate that can be mounted around the mop head during cleaning operations. Is targeted.

I. Motorless Cleaning Tool Referring to FIG. 2, a motorless cleaning tool 10 made in accordance with the present invention is shown.

  In one embodiment, the cleaning implement 10 includes a mop head 20 and a mop head 20 that is rotatable by a universal joint 40 having a first rotational axis AA and a second rotational axis BB. A connected handle 30 is provided. By “elongated handle” is meant a handle whose length is at least about 5 cm, preferably at least about 20 cm, more preferably at least about 60 cm, and even more preferably at least about 115 cm.

  FIG. 3 shows an enlarged view of the lower part of the mop head 20, the universal joint 40 and the handle 30.

  In one embodiment, the mop head 20 includes a “buffer” pad 120 coupled to the interconnecting member 220. The interconnecting member 220 can be attached to the cushion pad 120 by any method known in the art. In a preferred embodiment, the interconnect member 220 is adhesively attached to the cushion pad 120. The interconnection member 220 includes a base portion 1220 and at least one, but preferably two, protrusions 2220 and 3220 for pivotally connecting the universal joint 40 to the interconnection member 220. In a preferred embodiment, the cushion pad 120 is substantially deformable and the base portion is substantially rigid.

  “Substantially deformable” means that when the side of the cushion pad is pressed against the wall as shown in FIG. 4, the cushion pad 120 deforms in the XY plane (ie, the horizontal plane) or “ When the buffer pad is pressed against the curved plane, the buffer pad 120 is deformed in the Z direction, and at least a part of the buffer pad is as shown in FIG. It means that it bends upward. In a preferred embodiment, the cushion pad is deformable both in the XY plane and in the Z direction. In particular, the deformable cushion pad has the function of adapting to a curved surface such as a sink or bathtub and / or the function of being pushed between two hard surfaces such as between a wall and a toilet seat. Thus, such a cleaning implement with a deformable cushion pad can be used in combination with a disposable cleaning substrate to clean various hard surfaces in the bathroom.

  In one embodiment, the mop head stiffness to deformability ratio is at least about 0.1, preferably at least about 0.15, more preferably at least about 0.2, even more preferably at least about 0.25, Most preferably it is at least about 0.3. In one embodiment, the mop head stiffness to deformability ratio is less than about 0.75, preferably less than about 0.7, more preferably less than about 0.65, even more preferably less than about 0.6, Most preferably it is at least about 0.55.

  Without being limited to any theory, it is believed that the ratio of stiffness to deformability provides an effective measure of the ability of the mop head to adapt to the surface to be cleaned.

  The mop head stiffness-to-deformability ratio is defined as the total area of the bottom surface of the base portion 1220 projected onto the XY plane (which is made of a substantially rigid material and contacts the cushion pad), It can be calculated by dividing by the total area of the bottom surface of the deformable buffer pad projected onto the XY plane. The force that the user applies to the handle 30 and / or the universal joint 40 is transmitted through the base portion to the buffer pad so that if the stiffness to deformability ratio is too low (ie less than about 0.05), the force is even Those skilled in the art will appreciate that it takes over a relatively small area of the cushion pad rather than such. Such a low stiffness-to-deformability ratio reduces the operability of the mop head, limits the user's ability to control the direction of the mop head, and may result in damage to the cushion pad, Reduces the overall cleaning effectiveness of instruments used in combination with a cleaning substrate attached to the pad. If the ratio of stiffness to deformability is too high (ie, greater than about 0.75), the ability to deform in the XY plane of the shock absorber pad as well as in the Z direction is the Those skilled in the art will also understand that

In a preferred embodiment, the total area of the bottom surface of the base portion 1220 projected onto the XY plane is between about 1 cm ² and about 100 cm ² , preferably between about 2 cm ² and about 50 cm ² , more preferably about 4 cm. ^{Between 2} and about 30 cm ² . Base portion 1220 can have any suitable geometric shape. Those skilled in the art will appreciate that the base portion can be partitioned to be a plurality of base portions and still provide the same effect.

In a preferred embodiment, the total area of the bottom surface of the deformable cushion pad projected onto the XY plane is between about 2 cm ² and about 500 cm ² , preferably between about 4 cm ² and about 400 cm ² , more preferably it is between about 6cm ² ~ about 300cm ^2.

  In one embodiment, the interconnecting member 220 is attached to the cushion pad 120 along the longitudinal axis LL. In a preferred embodiment, the length of the interconnecting member 220 measured along the longitudinal axis LL of the buffer pad 120 is at least about the length of the buffer pad measured along the longitudinal axis LL. 20%, preferably between about 20% and about 85%, more preferably between about 35% and about 75%. In one embodiment, the width of the interconnecting member 220 measured along a line perpendicular to the longitudinal axis LL of the cushion pad 120 is along a line perpendicular to the longitudinal axis LL. Between about 10% and about 60%, preferably between 15% and about 50%, more preferably between about 20% and about 40% of the width of the buffer pad as measured.

  In one embodiment, the cushion pad is made of a deformable material having a Type A durometer of at least about 5, preferably at least about 7, and more preferably at least about 10. In one embodiment, the cushion pad is made of a deformable material having a Type A durometer less than about 60, and more preferably less than about 40, as measured with a Type A durometer. Hardness, or durometer, is manufactured by Pacific Transducer Corp, Los Angeles, California, and can be measured using a Model 408 Type A durometer that conforms to ASTM D2240. “Low hardness” buffer pads can accommodate not only curved surfaces in bathtubs or shower rooms, but also irregularities and grooves on surfaces such as grout lines between bathroom tiles. On the other hand, buffer pads made of a conventional thermoplastic resin or hard foam having a Type A durometer of more than about 60 tend not to easily adapt to fine shapes such as grout lines between tiles. A cushion pad with a Type A durometer of less than about 5 is typically very fragile and does not provide the necessary stiffness to effectively clean the surface. Type A durometer less than about 60, but more than about 5 types of buffer pads are very adaptable and can be used in combination with a reinforcing member (see below) to prevent loss of the pad shape Avoid contact with the lower edge of the housing during medium and heavy friction.

  In one embodiment, the buffer pad thickness (ie, Z direction) is at least about 2 mm, preferably at least about 5 mm, more preferably at least about 10 mm, and even more preferably at least about 15 mm. In one embodiment, the buffer pad thickness (ie, Z direction) is less than about 100 mm, preferably less than about 80 mm, more preferably less than about 50 mm. One skilled in the art will understand that for a given hardness or durometer, the ability of a material to deform is inversely proportional to its thickness. In other words, a relatively thin buffer pad made of a deformable material tends to deform more than a thicker buffer pad made of the same material.

  In one embodiment, the buffer pad 120 includes a “fragile portion” for facilitating deformation of the buffer pad. “Vulnerable part for facilitating deformation of the shock absorber pad” refers to any material made or formed in the shock absorber material to increase the deformation capability of the shock absorber pad in the XY plane and / or in the Z direction. It also means alteration. Non-limiting examples of such “fragile parts” include slits made in part of the buffer pad, slits made through the entire thickness of the buffer pad, created in the buffer pad. Air bubbles or voids, cavities created in the top and / or bottom surface of the cushioning pad, holes or openings extending through the entire thickness of the cushioning pad, and any combination thereof . In one embodiment, these weakened portions are evenly disposed on the cushioning pad to increase the ability of the pad to deform uniformly. In the preferred embodiment shown in FIG. 6A, these fragile portions are “concentrated” on the portion of the cushion pad 120 located between the outer edge of the cushion pad 120 and the longitudinal side edge of the base portion 1220. . One skilled in the art will appreciate that the location, number, and / or size of the weakened portion can increase the ability of a particular portion of the cushion pad to deform under pressure or restraint.

  In a preferred embodiment, the cushion pad 120 comprises at least one but preferably a plurality of weakened portions that are holes or openings 1120 made or formed through the entire thickness of the cushion pad. In particular, these holes 1120 promote deformation of the buffer pad 120 in the XY plane and in the Z direction. In one embodiment, the cushion pad 120 comprises between 1-50 holes, preferably between 2-30 holes, more preferably between 6-20 holes. The hole or opening 1120 can have any geometric shape known in the art, such as circular, square, triangular, elliptical, longitudinal, curved inward or outward with respect to the center of the cushioning pad. Nevertheless, the same effect can be provided. FIG. 6B shows an example of a cushioning pad 120 with four longitudinal openings 1125 that are curved inwardly. In addition to increasing the ability of the buffer pad to deform, the holes or openings 1120 also help drain liquid through the buffer pad when the buffer pad is rinsed with water.

  In a preferred embodiment, the cushion pad 120 is made of a substantially non-absorbable material. “Substantially non-absorbent material” means that after 5 minutes of complete water immersion without excessive deformation or squeezing of the buffer pad, the weight of water absorbed in the originally dried buffer pad is approximately equal to the weight of the dry buffer pad. It means less than 50%, preferably less than about 30%, more preferably less than about 20%, even more preferably less than about 10%, and most preferably less than about 2% of the weight of the dry buffer pad. In particular, since the cleaning implement is used with a disposable cleaning substrate, most of the soil removed from the cleaning surface is trapped in the disposable substrate. As a result, only the residual amount of soil solution remains on the non-absorbent buffer pad after the cleaning operation, and this residual amount can be easily washed off with water. As a result, the cleaning implement provides a hygienic / clean surface cleaning method as opposed to conventional sponges.

  The cushion pad 120 can have any suitable geometry. In one embodiment shown in FIG. 6, the buffer pad 120 has an elliptical shape. In a preferred embodiment, the cushion pad 120 tapers gradually from the central portion toward the two tips 2120 and 3120 and has a substantially “eye” shape or a sharp shape.

  In one embodiment shown in FIG. 7, except for the handle and the upper joint joint, for clarity, the two edges of the cushion pad forming the tip 2120 are preferably between about 10 degrees and about 150 degrees. Forms an angle α between about 40 degrees and about 120 degrees, more preferably between about 60 degrees and about 100 degrees. In one embodiment, the two edges of the cushion pad forming tip 3120 are between about 10 degrees and about 150 degrees, preferably between about 40 degrees and about 120 degrees, more preferably between about 60 degrees and about 100 degrees. An angle β between degrees is formed. In one embodiment, angle α and angle β are different. In a preferred embodiment, angle α is equal to angle β. In particular, each of the tips 2120 and 3120 allows the user to manipulate the cleaning substrate within the corner, and the surface of the corner of the room is cleaned with the cleaning substrate and buffer pad 120 attached to the mop head 20. It becomes possible. In addition, when either one of the tips 2120 or 3120 is gradually inserted between the longitudinal surfaces, the mop head is placed in the middle of the longitudinal surface, for example, a narrow surface located between the wall and the toilet seat. Can be reached and cleaned. If the distance separating the longitudinal surfaces is narrower than the width of the buffer pad, the deforming or “collapse” function in the XY plane of the buffer pad allows the mop head to be pushed further away, resulting in this narrow floor It can also be seen that more of the surface can be cleaned.

  In one embodiment, the thickness of the buffer pad is constant.

  In one embodiment shown in FIG. 8A, the thickness of the buffer pad 120 varies in the XY plane, preferably along the Y direction. In a preferred embodiment, the bottom surface of the shock absorber pad 120 is substantially flat and its thickness increases from the central portion of the shock absorber pad toward at least one of the tips 2120 and 3120, but preferably both. In the preferred embodiment, the thickness of the cushion pad 120 is constant in the portion adjacent the pad interconnect member 220 and then increases from the edges of the protruding portions 2220 and 3220 toward the tips 2120 and 3120. As a result, the upper surface of the buffer pad is curved at portions adjacent to the pad tips 2120 and 3120. In another embodiment, the top surface of the cushion pad 120 can be substantially flat, and the bottom surface of the cushion pad can be curved at portions adjacent to the pad tips 2120 and 3120.

  In yet another embodiment shown in FIG. 8B, both the top and bottom of the cushion pad 120 can be curved in the portion of the pad adjacent to the tips 2120 and 3120. Without being limited to any theory, the cleaning substrate is attached to a buffer pad having a curved bottom and the function of the buffer pad deforms under pressure when the mop head is applied to the cleaning surface. It is thought that tension is applied to the material. As a result, the cleaning substrate is securely held on the buffer pad.

  In addition, the thickness of the buffer pad can affect its deformation function. As a result, it is possible to create a region of increased stiffness (ie, reduced deformability) on the cushion pad by providing a cushion pad that gradually increases or decreases in thickness. In particular, the buffer pad whose thickness increases toward the tips 1120 and 2120 improves the function of removing strong stains on the mop head, as will be described later.

  In one embodiment shown in FIG. 9, the base portion 1220 is disposed on the cushion pad 120 such that at least one of the rotational axes of the universal joint 40 is substantially parallel to the line LL connecting the tips 2120 and 3120. It is connected. In one embodiment, the universal joint 40 includes a lower member 140 that is coupled to the protruding portions 2220 and 3220 of the base portion 1220 in a rotatable manner about the rotational axis AA. The universal joint 40 also includes an upper member 240 that is connected to the lower member 140 so as to be rotatable about the rotation axis BB. In a preferred embodiment, the distal end of the handle 30 is detachably connected to the upper member 240.

  In one embodiment, the lower member 140 forms a handle that the user can hold with one hand. In particular, this embodiment allows the user to clean large surfaces (such as floors, bathtubs, etc.) or difficult to reach surfaces (such as walls) by using a mop head 20 in combination with an elongated handle 30. And can be used to clean a smaller surface (such as a mirror) or an easily accessible surface (such as a sink) by simply holding the handle with one hand and wiping the surface without the elongated handle 30 can do.

  In a further preferred embodiment, the base portion 1220 is coupled to the cushion pad 120 such that the rotational axis AA of the lower member 140 is substantially parallel to the line LL connecting the tips 2120 and 3120. . In particular, according to this embodiment, a user holding the handle with one hand can bend the buffer pad 120 so that only the region adjacent to the tip of the buffer pad contacts the cleaning surface, as shown in FIG. The force applied by the user to the handle can be “focused” on the area adjacent to one of the tips 2120 or 3120. Those skilled in the art will appreciate that concentrating the force toward the tip will help to remove strong stains by increasing the frictional force between the cleaning substrate and the stain.

  In the preferred embodiment shown in FIGS. 10 and 11, the user rotates the upper member 240 until one of the protruding portions 2220 or 3220 is located midway between the leg portions 1240 and 2240 of the upper member 240. 140 can be temporarily fixed (that is, the rotation of the lower member 140 around the rotation axis AA is prevented). In particular, this embodiment prevents the mop head from tilting or rotating while the user holds the handle with one hand.

  In a further preferred embodiment, the user temporarily secures the universal joint 40 by forcing or pushing the upper member 240 against one of the protruding portions (ie, rotating both the lower member 140 and the upper member 240). At least one, but preferably both of the protruding portions 2220 and / or 3220 are slightly longer than the inner distance between the first and second leg portions 1240 and 2240 of the upper member 240. Is getting longer. In particular, this embodiment prevents the upper member 240 from rotating while the user's finger is in the “path” of the upper member 240 to minimize the risk of the user accidentally pinching the finger. To do. Preferred examples of such fixable universal joints include copending US patent application serial number 60 / 499,852 (James et al., Filed Sep. 3, 2003) and copending US patent application. Serial number 60 / 562,000 (James et al., Filed Apr. 13, 2004, both patents assigned to The Procter & Gamble Company).

  As described above, the cleaning instrument 10 is used together with the disposable cleaning substrate attached to the mop head 20 in a separable state.

  In one embodiment, the mop head 20 includes at least one holding member for engaging and holding a disposable cleaning substrate around the mop head 20 during a cleaning operation. Non-limiting examples of suitable retaining members include deformable attachment structures, hook or loop fasteners, clamps, protrusions, clips, adhesives, or any combination thereof.

  In the preferred embodiment shown in FIG. 12, the mop head 20 includes at least one, but preferably two attachment structures 320 and 325 for engaging and holding the disposable cleaning substrate 50. The mounting structure 320 includes a relatively thin (ie, less than 2 mm thick) deformable plastic layer disposed over the hollow space. The plastic layer is made of plastic and includes at least one, but preferably a plurality of triangles, or cross slits that form a pie-shaped portion having vertices. Since the pie-shaped portion is bendable, the user can apply standard finger pressure to at least a portion of the cleaning substrate to push the apex of the pie-shaped portion. When the user pulls out his / her finger, the pie-shaped part can then return to its original shape, so that at least one of the vertices engages (and more preferably pierces) the cleaning substrate, thereby Is held around the mop head. A suitable mounting structure is disclosed in further detail in US Pat. No. 6,305,046 (issued October 23, 2001, assigned to The Procter & Gamble Company). ing.

  In one embodiment, the mop head 20 comprises at least one but preferably two attachment structures formed in the base portion 1220. In a preferred embodiment, the mop head comprises at least one, but preferably two, attachment structures 320 and 325 that are coupled to the deformable cushion pad 120 as shown in FIG. In one embodiment, the attachment structure 320 and / or 325 is adjacent to the top surface of the cushion pad 120. In a preferred embodiment, the attachment structure 320 and / or 325 is located on the longitudinal axis LL of the cushion pad. In one embodiment shown in FIG. 12, the distance d measured along the longitudinal axis LL between the geometric center Ca and the tip 2120 of the mounting structure 320 (or any other type of retaining member) is Less than about 80%, preferably less than about 60%, more preferably less than 50%, even more preferably about about the distance D measured along the longitudinal axis LL between the center Cb of the cushion pad and the tip 2120. Less than 40%. In particular, the mounting structure 320 and / or 325 is located on the longitudinal axis LL so that the user can fold and / or wrap the two portions 150 and 250 of the cleaning substrate 50 on the buffer pad 120. This allows the two parts 150 and 250 to be attached to a single attachment structure as shown in FIG. The two portions 150 and 250 are each located symmetrically with respect to the longitudinal axis of the cleaning substrate and are on opposite halves of the cleaning substrate. In addition, the mounting structures 320 and / or 325 disposed on the longitudinal axis LL can be arranged in the XY plane on the side of the cushioning pad and / or in the Z direction as previously shown in FIGS. Does not affect the deformability. In a preferred embodiment, the attachment structure 320 and / or 325 is substantially adjacent to the tip 2120 and / or 3120. “Adjacent to the tip” means that the distance d measured along the longitudinal axis LL between the geometric center Ca of the mounting structure 320 (or any other type of holding member) and the tip 2120 is the center of the buffer pad. Less than about 35%, preferably between about 5% and about 30%, more preferably between about 10% and about 25% of the distance D measured along the longitudinal axis LL between Cb and tip 2120. Means between. The position of the mounting structure 320 on the mop head 20 is at the minimum dimensions (ie, length and width) and in particular the width of the substantially square cleaning substrate attached to the cushion pad 120 as shown in FIG. It turns out that it has a direct influence. In particular, the mounting structure 320 and / or 325 disposed adjacent to the tip 2120 and / or 3120 allows the handle 30 to rotate in any direction without interfering with the disposable cleaning substrate held by the mounting structure. Is possible. In addition, when the cleaning implement is used with a substantially square cleaning substrate, by placing the attachment structure 320 and / or 325 as close as possible from the tips 1120 and / or 2120, the opposing portion of the cleaning substrate Alternatively, the width of the cleaning substrate can be minimized because the corners can reach the mounting structure. As a result, less material is required to make the cleaning substrate, reducing the manufacturing cost of the substrate. In addition, when the disposable cleaning substrate is attached to a mop head as shown in FIG. 13, the cleaning substrate covers the side of the buffer pad so that both the bottom and sides of the instrument can be used for cleaning. .

  As described above, a cushion pad with a square shape and two retaining members located on the cushion pad can be used with a substantially wider cleaning substrate, but this cleaning substrate is free. One skilled in the art will appreciate that it may interfere with the fitting and / or handle. To prevent the cleaning substrate from interfering with the universal joint, the cleaning substrate is free to rotate the universal joint and / or handle without any interference from the cleaning substrate mounted on the cushioning pad. At least one, but preferably two, slits or notches or cutouts made on the cleaning substrate can be mounted.

  In one embodiment, the outer surface of the cushion pad 120 is preferably substantially continuous, and the cushion pad is preferably made of a deformable and non-absorbable material. A “substantially continuous outer surface” is, for example, comprising a plurality of bristles, the outer surface of the cushioning pad being uniform, and / or in contrast to the outer surface of the brush, which together form a discontinuous surface Means no hindrance. In one embodiment, the outer surface of the buffer pad can have a three-dimensional pattern that is non-planarized and / or formed on the buffer pad. Non-limiting examples of suitable deformable and non-absorbable materials include ethylene vinyl acetate, SANTOPRENE®, neoprene, clayton, natural rubber, polyethylene, polypropylene rubber, polyurethane, synthetic foam, or Any other suitable material may be mentioned.

  In one embodiment, the outer surface of the cushion pad 120 can be substantially continuous as described above, but can also be loaded with bristles 60 attached to a deformable cushion pad. In a preferred embodiment, as shown in FIG. 14, bristles 60 can be attached to the bottom surface of the buffer pad and / or the side surface of the buffer pad. The bristles 60 can be useful for rubbing the surface, but can also hold a disposable nonwoven cleaning substrate.

  As described above, the interconnecting member 220 and the universal joint 40 are preferably made of a substantially rigid material. Non-limiting examples of substantially rigid materials include wood, metal, ceramic, glass, plastics such as polypropylene, polyethylene terephthalate, acrylonitrile butadiene-styrene, nylon, acetyl (any acetal homopolymer or copolymer resin) polystyrene, etc. And any combination thereof.

  In the preferred embodiment, the cushion pad 120 is fixedly connected to the interconnecting member 220. The cushion pad can be fixedly attached by any method known in the art. In a preferred embodiment, the cushion pad 120 is adhesively attached to the interconnect member 220 with an adhesive such as a synthetic aqueous, hot melt, or solvent system.

  As described above, the attachment structure 320 and / or 325 is preferably made of a substantially flexible material. Non-limiting examples of substantially flexible materials include low density polyethylene or linear low density polyethylene. In a preferred embodiment, the attachment structure 320 and / or 325 is fixedly coupled to the cushion pad 120. In a preferred embodiment, the mounting structure 320 is adhesively connected to the inner surface of a peripheral rim or ring that has its outer surface bonded and connected to the cushioning pad.

  As previously described, the cleaning implement 10 includes an elongated handle 30. The handle 30 can be any handle known in the art and can be a monolithic, split, extended, or foldable handle.

  The described cleaning implement is preferably used with a disposable cleaning substrate. However, those skilled in the art will appreciate that these devices can be conveniently used with reusable substrate materials such as sponges or any other absorbent material. Non-limiting examples of suitable disposable cleaning substrates include “dry cleaning sheets” used to remove particulate matter (dust, bread crumbs, hair, cotton crumbs, allergens, etc.) from the surface to be cleaned. "Dry absorbent cleaning wipe or pad" or cleaning composition used for wet cleaning of a surface by spraying the cleaning solution and wiping the surface with a wipe or pad to remove the contaminated solution "Wet type cleaning wipes or pads" impregnated in advance. The disposable cleaning substrate can include a single layer or multiple layers of substrate material. The disposable cleaning substrate is preferably made of a nonwoven material.

II. Motorized Cleaning Tool Referring to FIGS. 15 and 16, a motorized cleaning tool 11 made in accordance with one embodiment of the present invention is schematically illustrated.

  In one embodiment, the cleaning implement 11 comprises a head 21 and a handle 31 connected to the head 21, preferably connected to the mop head in a pivotable manner by a joint 41.

  In one embodiment, the head 21 includes a “buffer” pad 121 coupled to the sliding member 221. The sliding member 221 can be fixedly attached to the buffer pad 121 by any method known in the art. In a preferred embodiment, the sliding member 221 is attached to the buffer pad 121 adhesively.

  The buffer pad 121 can be any of the buffer pads described above in the context of a motorless cleaning implement.

  In one embodiment, the stiffness to deformability ratio of the head 21 is at least about 0.1, preferably at least about 0.15, more preferably at least about 0.2, even more preferably at least about 0.25, Most preferably it is at least about 0.3. In one embodiment, the mop head stiffness to deformability ratio is less than about 0.75, preferably less than about 0.7, more preferably less than about 0.65, even more preferably less than about 0.6, Most preferably it is at least about 0.55.

  The ratio of rigidity to deformability of the mop head with a motor is determined by the bottom surface of the sliding member 221 projected on the XY plane (which is made of a substantially rigid material and contacts the buffer pad 121). Is divided by the total area of the bottom surface of the deformable buffer pad 121 projected onto the XY plane. The sliding member can be directly or indirectly connected to the buffer pad. The sliding member can be indirectly connected to the buffer pad by attaching a base portion connected to the buffer pad to the buffer pad. When the sliding member is connected to a base portion that is connected to a buffer pad, the ratio of rigidity to deformability of the motorized mop head is determined by the base portion projected on the XY plane (which is substantially Calculated by dividing the total area of the bottom surface of the deformable buffer pad 121 projected onto the XY plane by the total area of the bottom surface of the deformable buffer pad 121. it can.

  In one embodiment, the sliding member 221 is preferably on the first and second guide members 324, 421 so that both the cushion pad 121 and the sliding member 221 are movable along the axis CC. In contrast, the first and second guide members 321 and 421 are disposed in the middle so as to be slidably movable. In one embodiment, to engage corresponding grooves 1221 and 2221 made on both sides of the sliding member 221, and so that both sliding members 221 are movable along the axis CC. At least one, but preferably both guide members are provided with tongues 1321 and 2321. Those skilled in the art will appreciate that the location of the tongues and grooves can be reversed and still provide the same effect. One skilled in the art will also appreciate that mechanisms other than tongues and grooves can be used and provide similar effects, such as circular, spherical, linear bearings and wheels. To minimize friction between the tongue and the groove, preferably the low friction material is used, and in order to limit contact between the tongue portion and the groove portion, the tongue and groove shapes are Adopt a smooth and / or round surface for optimization.

  In one embodiment, sliding and / or reciprocating motion is provided to the sliding member 221 by an electric motor 521 coupled to the mop head. The motor 521 can be electrically connected to at least one battery (either disposable or rechargeable) that is preferably disposed within the handle 31. One skilled in the art will appreciate that sliding and / or reciprocating motion is also transmitted to the cushioning pad since the sliding member is coupled to the cushioning pad.

The electric motor can be operated via a switch 131 which is preferably arranged on the handle 31. The electric motor 521 includes a rotating shaft that is operatively connected to the sliding member 221. Non-limiting examples of suitable motors include permanent magnet DC motors (Action Motor, 115.7 rad / s (10750 rpm) 6V operating characteristics, no load and 89.10 ⁻³ Nm torque. Having a draw current of 0.32 A and a draw current of 14.5 A at the maximum torque, which can be used with AA disposable batteries). Non-limiting examples of suitable switches include on / off switches, momentary switches, potentiometers, variable speed switches, and combinations thereof.

  In one embodiment shown in FIG. 16, the rotation shaft of the motor 521 is connected to the sliding member 221 in a state where it can be operated by the rotation drive body 621, and the rotation drive body is the rotation axis of the rotation drive body 621. Drive pin 1621 that orbits around. In one embodiment, the drive pin 1621 engages a slot 3221 made in the upper surface of the sliding member 221 and is preferably perpendicular to the axis CC. When the drive pin 1621 orbits around the rotation axis of the rotary drive body 621, the pin can advance through the slot 3221. As a result, the sliding member 221 and the buffer pad 121 are moved to the guide members 321 and 421. Those skilled in the art will understand that they pull against.

  In one embodiment, the sliding frequency of the sliding member and buffer pad is between about 5 Hz and about 50 Hz, preferably between about 10 Hz and about 40 Hz, more preferably between about 15 Hz and about 30 Hz. “Sliding frequency” means the number of times the sliding member moves back and forth in one second. The sliding frequency of the sliding member depends on the rotational speed of the rotary drive body 621, and the amplitude of the sliding member motion, that is, the displacement amplitude, is determined by the distance between the drive pin 1621 and the rotational axis of the rotary drive body 621. Those skilled in the art will understand that. In one embodiment, the displacement amplitude is between 1 mm and 30 mm, preferably between about 2 mm and about 20 mm, more preferably between about 3 mm and about 10 mm.

  In one embodiment, the rotation shaft of the electric motor 521 is directly connected to the rotation drive body (that is, the rotation shaft and the rotation axis of the rotation drive body are the same). In the preferred embodiment shown in FIGS. 15 and 16, the rotary shaft of the electric motor 521 is indirectly connected to the rotary drive by at least one transmission gear.

  In one embodiment, the rotation axis of the rotation shaft of the motor 521 is substantially parallel to the rotation axis of the rotation driver 621.

  In the preferred embodiment shown in FIGS. 17 and 18, the rotational axis of the rotating shaft of the motor is substantially perpendicular to the rotational axis of the rotary drive.

  FIG. 18 shows the cleaning tool 11, where a portion of the housing 721 containing the motor, gears, and rotary drive and a portion of the handle 31 are not shown for clarity. . In one embodiment, the rotation axis of the rotation shaft of the motor is substantially parallel to the sliding member 221, and the rotation axis of the rotary drive 621 is substantially perpendicular to the sliding member 221. In this embodiment, a universal joint and / or a set of gears 821 can be used to conduct the rotational motion of the rotating shaft to the rotary driver 621. In particular, when the rotation axis of the rotary shaft is parallel to the sliding member 621, the height of the housing containing the motor, gears, and rotary drive can be reduced.

  In one embodiment, the joint 41 of the handle 31 is a fork that includes a first leg member and a second leg member 141 and 241 that are pivotably connected about the axis DD to the housing 721. Has been. In a preferred embodiment, leg members 141 and 241 form a volume that can be occupied by at least a portion of housing 721 when handle 31 is pushed downward as shown in FIG.

  In a preferred embodiment, the handle 31 is resiliently connected to the housing 721 so that when the user releases the pressure applied to the handle 31, the handle 31 returns to its original position.

  In one embodiment, the handle 31 is resiliently connected to the housing 721 by at least one but preferably two spring members 51 such as that shown in FIG. In one embodiment, the first portion of the spring member 51 can be coupled to the leg member 141 and the second portion of the spring member can be coupled to the housing 721. The spring member 51 can be any suitable resilient and / or elastic material that allows the handle 31 to return to its original position when the user stops applying upward or downward pressure to the handle 31. Can also be produced. Non-limiting examples of suitable materials that can be used for the spring member 51 include metals, plastics, wood, and elastomeric materials.

  In one embodiment, the battery disposed in the handle 31 can be electrically connected to the motor by an electrical cable, the cable being placed in the handle, leg element 141 and / or 241 and then the leg member 141. And / or can be inserted into the housing 721 through an opening made in a pivotal connection between the 241 and the housing 721. In particular, the electrical cable placed in the handle and inserted into the housing through the swivel connection limits the risk that the cable may be damaged or contacted with water during the cleaning operation, while the handle It is possible to pivot with respect to the housing 721.

  In one embodiment shown in FIG. 21, the motorized cleaning implement 12 includes a buffer pad 22 and a housing 32 for containing and protecting the motor, which motor is electrically connected to at least one battery and switch 132. In addition, the reinforcing member 122 is connected in a workable state. In the preferred embodiment, the housing 32 is substantially leak-proof to prevent liquid from reaching the motor and other electrical components present in the housing. As described above, the motor can be directly connected to the sliding member 122, but is preferably connected indirectly.

  In one embodiment, the housing 32 is ergonomically shaped so that a user can press a palm against the top surface of the housing 32 during a cleaning operation. In one embodiment, the outer surface of the housing 32 is substantially convex with respect to the cushioning pad so that a user can grip the housing with one hand. In a preferred embodiment, the housing 32 has a recessed portion 232 that is preferably adjacent (relative to the buffer pad) to the buffer pad 22. In the preferred embodiment, the recessed portions 232 are present on the left and right sides of the housing 32. In one embodiment, the recessed portion 232 has at least one but preferably a plurality of recessed portions so that when a user touches a finger within the recessed portion, the user does not slip and put the finger into the protruding portion. A protrusion 1232 is provided. In the preferred embodiment, the housing 32 is substantially symmetric with respect to the vertical plane. In particular, the user can use the motorized instrument with either the left or right hand due to the housing having a symmetrical plane.

  In one embodiment, the housing is made of acrylonitrile butadiene styrene, polypropylene, or any injection moldable thermoplastic. In a preferred embodiment, the convex portion 232 and / or the protrusion 1232 are made of a soft material. Non-limiting examples of soft materials provide ethylene vinyl acetate foam, silicone, silicone foam, styrene butadiene rubber, thermoplastic elastomer, thermoplastic foam, thermosetting resin foam, or a softer feel Examples include polyolefins such as a mixture of polypropylene and a butadiene rubber block copolymer, and mixtures thereof. Another advantage of a soft material is that it not only improves grip but also provides anti-slip properties when the surface is wet. For example, thermoplastic elastomers such as styrene block copolymer plastics under the trade name Kraton from Kraton Polymers Inc. of Houston, Texas. KRATON provides a soft surface for easy gripping of the surface, both wet and dry, to improve general grip and user hand feel.

  In one embodiment, the switch 132 is disposed within the recessed portion 332 of the housing 32. In the preferred embodiment, the switch 132 is substantially adjacent to the plane of symmetry of the housing 32. In particular, disposing the switch 132 in the recessed portion 332 prevents the user from accidentally turning on or off the motor. When the user turns the motor on or off, in order for the user to touch the switch 132, it is only necessary to insert at least the tip of the finger within the recessed portion 332; Those skilled in the art will appreciate that a switch located in an area of the housing that is not readily accessible when the user has an instrument prevents the user from accidentally turning the motor on and off.

  In one embodiment, the cushion pad 22 has at least one tip portion 122, preferably a plurality of tip portions. In one embodiment, the cushion pad has a first (ie, front) tip portion 122 and a second (ie, back) tip portion 222 that are substantially parallel to the plane of symmetry of the housing 32. .

  In one embodiment, the cushion pad comprises at least one attachment structure 322 that is substantially adjacent to the first tip portion 122 and / or the second tip portion 222.

  In one embodiment, the cushion pad comprises at least one attachment structure 322 that is substantially adjacent to the second (ie, rear) tip portion 222.

  A motorized cleaning implement equipped with a buffer pad with an attachment structure adjacent to one of the tip portions can be used with a disposable cleaning substrate with a pocket. The first (ie, front) tip portion can be inserted into the pocket and the “free end” of the substrate can be folded over the cushion pad and attached to the attachment structure 322.

  In the preferred embodiment shown in FIG. 22A, the cushioning pad comprises a first mounting structure 332 and a second mounting structure 322 ′, both of which are substantially adjacent to the second (ie, rear) tip portion 222. The first (ie, front) tip portion 122 does not have an attachment structure. In one embodiment, the first and second mounting structures comprise a plurality of refractive pie-shaped portions 1322 that can engage at least a portion of the cleaning substrate when the cleaning substrate is pushed into the mounting structure. . These pie-shaped portions are preferably oriented away from the force applied to the pie-shaped portion by the substrate. FIG. 22B shows an alternative mounting structure 322 that the cushion pad can comprise. The mounting structure includes a plurality of pie-shaped portions 1322 with common vertices disposed at the rear of the mounting structure, and a plurality of pie-shaped portions each having individual vertices and extending from the rear to the front of the mounting structure Portion 2322 can be mounted. Without being limited by any theory, it is believed that the combination of pie-shaped portions 1322 and 2322 within the same mounting structure provides more gripping surfaces to hold the cleaning substrate. The attachment structure can be integrally formed by injection molding, or two can be formed independently and later connected to the buffer pad. The pie-shaped part of the mounting structure is preferably made by injection molding of a thermoplastic resin and the slit is formed by a mold, but an alternative method of making is a layer of plastic material with flexibility and deformability To make slits or other methods known in the art.

  In one embodiment, the attachment structures 322 and 322 'are formed of two separate layers of plastic material that are independently connected to the cushion pads. In a preferred embodiment, the attachment structures 322 and 322 'are formed in the same plastic layer that is then connected to a buffer pad. In particular, a cushioning pad with a first mounting structure 322 and a second mounting structure 322 'allows a user to mount each free end or each independent cleaning substrate end. As described above, the buffer pad can reciprocate. As a result, it is beneficial to mount at least two attachment structures that can each maintain the free end of the cleaning substrate in order to prevent the cleaning substrate from coming off the buffer pad during the cleaning operation.

  In one embodiment, the mounting structure 322 and / or the space above 322 'if present is not substantially occluded by the housing 32 or housing portion. “Not substantially occluded” means that the housing 32 does not substantially extend to the top of the mounting structure in a manner that prevents contact with the mounting structure. As described above, the user can attach the free or single end of the cleaning substrate to the mounting structure by folding the free end of the cleaning substrate on top of the tip of the buffer pad. It is therefore beneficial to ensure that any objects that may interfere and / or prevent the user from attaching the cleaning substrate to the cushioning pad are substantially absent from the upper space of the mounting structure. is there.

  In FIG. 22C, a pocket with one of the free end 252 or end 352 connected to the first (ie, front) tip portion of the cushion pad 32 and engaged by one of the mounting structures 322. The cleaning substrate 52 on which 152 is mounted is shown. For clarity and explanation, the second free end of the cleaning substrate is shown before being engaged with the second mounting structure.

  When both free ends or ends are connected to the attachment structure 322 and / or 322 ', the side portions of the cushion pad 32 are at least partially covered by the cleaning substrate. As a result, when using the side portion of the buffer pad against the surface to be cleaned, the side portion of the buffer pad that is covered with the cleaning substrate can also be used for cleaning.

  In one embodiment shown in FIG. 23A, at least one of the tip portions of the cushion pad 32 is tapered. “Tapering” means that the thickness of the tip portion of the buffer pad gradually increases from the tip toward the sliding member. In a preferred embodiment, the first (ie, front) tip portion 122 is tapered and preferably does not include an attachment structure. When packaging cleaning substrates, especially non-woven cleaning substrates with pockets that can be contacted through openings, the pockets can be flattened, resulting in a reduction in the openings that result in contact with the pockets. Those skilled in the art will understand that this is done. If the leading cushion pad is very thick, it may be difficult to insert the tip of the cushion pad through the opening when the user removes the cleaning substrate from the package. In particular, the tapered tip allows easy insertion of the tip into a “flat” pocket of the cleaning substrate. In addition to the tapered front portion, the rear portion of the cushion pad 22 is tapered to reduce the pad thickness in order to engage most of the ends 252 and 352 with the grip 322 or 322 '. You can also.

  As previously mentioned, the cushion pad of a motorless or motorized cleaning implement is preferably made of a deformable material that can adapt to the shape of the curved surface. As already shown in FIG. 10, when the front or rear tip is “bent”, the tip of the buffer pad will allow the user to increase the buffer pad and ultimately the smaller area / region of the cleaning substrate. You can apply power. One skilled in the art will appreciate that applying a greater force to a smaller area will increase the friction between the cleaning substrate and the surface to be cleaned, so that strong stains can be removed from the surface.

  As shown in FIG. 23A, the motorized cleaning implement includes a deformable buffer pad that can be reciprocated by a motor housed in a housing, and the user can “bend” the tip of the buffer pad to firmly It is beneficial that the top surface of the cushion pad does not contact the housing 32 when removing stains. When the tip of the cushion pad is brought into contact with the housing, the friction between the top surface of the cushion pad and the housing may damage the cushion pad, but it will damage the motor, gears, and / or other parts of the motorized cleaning tool. There is also a possibility to do.

  In addition, when the tip portion is bent for a long time, a part of the elasticity of the tip portion is lost and tends to be curved and maintained upward.

  It can be seen that it may be beneficial to manage the degree of deformability of the tip portion, particularly the first (ie, front) tip portion, to prevent the aforementioned problems.

  FIG. 23B is a plan view of the motorized cleaning implement, with the housing, motor, battery, and gears not shown for clarity.

  In one embodiment, the cleaning implement comprises a reinforcing member 224 that extends over at least a portion of the first tip portion 122. In a preferred embodiment, the reinforcing member 224 is bendable and preferably substantially elastic so as to allow it to return to its original shape when it stops applying force to the reinforcing member. In one embodiment, the reinforcement member is coupled to the base portion 1220 of the cleaning implement. In a preferred embodiment, the reinforcing member is integrated with the base portion when the base portion is molded. In one embodiment, a reinforcing member is used for the upper surface of the tip portion. In another embodiment, the reinforcing member is at least partially disposed within the tip portion. In yet another embodiment, the reinforcing member is disposed and / or incorporated entirely within the tip portion of the cushion pad. The cushion pad can be formed around the reinforcing member and / or can be molded.

  The reinforcing member is preferably made of a thermoplastic material that can bend slightly when pressure is applied to the tip. The shape, size, and deformability of the reinforcing member 224 is preferably such that when the user applies a pressure between about 4.4 N (1 lb) and 88.9 N (20 lb) to bend the tip portion. The upper surface of the tip portion and / or the reinforcing member does not come into contact with the housing 32. As described above, the reinforcing member is preferably made of an elastic material. In particular, the substantially elastic reinforcing member allows the tip portion of the buffer pad to return to its original shape when the application of force to the tip portion of the buffer pad is stopped. The substantially elastic reinforcing member substantially reduces the long term “loss of shape memory” of the aforementioned tip portion.

  In addition, the reinforcing member maintains a space, a gap, and / or a back gap between the upper surface of the tip portion and the housing. The presence of a gap between the top surface of the tip portion and the housing prevents the tip portion from rubbing against the housing, thereby preventing the motorized engine and / or energy from being depleted during use. To do.

  In one embodiment, the vertical distance (i.e., Z direction) between the lower edge of the housing and the cushion pad and / or the reinforcement member is between about 1-10 mm, preferably between about 2-9 mm, more preferably about 3-3. It is between 8m. In one embodiment, the force required to bring the tip portion and / or the reinforcing member into contact with the lower edge of the housing is at least about 4.4 N (1 lb), preferably about 8.9 N (2 lb), and more. Preferably it is about 13.3 N (3 pounds force). In one embodiment, the force required to bring the tip portion and / or the reinforcing member into contact with the lower edge of the housing is less than about 88.9 N (20 pounds), preferably less than about 44.5 N (10 pounds), More preferably less than about 8 pounds. The force applied to the tip portion and / or the reinforcing member can be measured by applying the bottom surface of the buffer pad to the scale. The tip portion is then forced to bend while rotating from 0 to about 45 degrees to limit the contact area between the lower edge of the cushion pad and the scale. The force applied to the instrument increases until the top surface of the tip portion and / or the reinforcing member contacts the lower edge of the housing and the force indicated by the balance is recorded.

III. Tensioning mechanism As mentioned above, a motorless or motorized (handled or unhandled) cleaning instrument is a cleaning base attached to the mop head of the instrument so that at least the bottom portion of the substrate contacts the surface to be cleaned. It can be used with a material (preferably a disposable cleaning substrate).

  In one embodiment shown in FIGS. 24-27, the cleaning substrate 50 is loaded with a lower layer 150 and an upper layer 250 that are bonded together to form a pocket portion 350 that can be contacted through the opening 1350. Can do. In a preferred embodiment, the shape of the pocket portion 350 generally conforms to the shape of at least a portion of the cushion pad of the cleaning implement. One skilled in the art will appreciate that the cleaning substrate can be made of a single layer of material that can be folded and then bonded together to form the aforementioned pocket portion.

  At least a portion of the cushion pad of the cleaning implement can be inserted into the pocket 350 through the opening 1350. In a preferred embodiment, the lower layer 150 of the cleaning substrate 50 is longer than the upper layer (when measured along the longitudinal axis 26-26) to form the extension 450. In one embodiment, the extension 450 can be attached to the mop head as desired by any mechanism known in the art.

  In one embodiment, the cleaning implement (shown in the open position in FIG. 27) to place the cleaning substrate under tension so that the cleaning substrate conforms at least partially to the shape of the cushioning pad of the cleaning implement. A tension mechanism 70 is provided.

  The tension mechanism 70 is mounted with a male element 170 having a three-dimensional protruding portion 1170 and a female element 270 having a corresponding three-dimensional recessed portion 1270 that can be engaged by the protruding portion 1170. The protruding and recessed portions can have any shape known in the art.

  In one embodiment, the female element 270 is such that when the tension mechanism is in the first position (ie, the closed position), the protruding portion 1170 engages the recessed portion 1270 and the tension mechanism is in the second position ( That is, when in the open position, the projecting portion 1170 is operatively coupled to the male element 170 so as not to engage the recessed portion 1270. In a preferred embodiment, the female element is connected to the male element 170 in a pivotable manner along the axis EE.

  FIG. 28 shows the cleaning implement 11 with the motor provided with the tension mechanism 70 in the open position. In one embodiment, male element 170 is attachable to, preferably adhesively attachable to, cushion pad 121, and female element 270 is pivotally connected to male element 170 as described above. It will be appreciated that the male element 170 can be formed directly on the buffer pad 121 (eg, molded into the buffer pad) and still provide the same effect. It will also be appreciated that the positions of the male and female elements can be reversed (i.e., the female element can be attached to the cushion pad) and still provide the same effect.

  FIG. 29 shows the cleaning implement 11 with the motor having the tension mechanism 70 in the closed position.

  It will be appreciated that the tensioning mechanism can be used with a motorless cleaning implement and can still provide the same effect.

  In a preferred embodiment, the sliding member 221 of the motorized cleaning implement is connected to the upper surface of the tensioning mechanism 70 so that the tensioning mechanism and cushioning pad are movable longitudinally relative to the appliance motor.

  FIG. 30 is an enlarged cross-sectional view taken along the axis 27-27 of the cleaning instrument 11 shown in FIG. 26, showing the protruding portion 1170 engaging the recessed portion 1270 of the female element 270. FIG.

  When the tensioning mechanism 70 is in the second (ie, open) position as shown in FIGS. 28 and 31, the user can ensure that the top layer 250 of the substrate 50 covers at least a portion of the male element 170 of the tensioning mechanism. At least a portion of the cushion pad 121 can be inserted into the pocket portion 350 of the cleaning substrate 50 shown in FIGS. Once the user inserts the cushion pad into the pocket portion of the cleaning substrate, the user closes the tensioning mechanism so that the male element engages the female element and is “squeezed between the male and female elements. The upper layer 250 can be forced to follow the three-dimensional path created by the male and female elements. In a preferred embodiment, when the tensioning mechanism is closed, a gap 370 (shown in FIG. 30) separates the protruding portion 1170 from the recessed portion 2170 and a portion of the upper layer 250 is placed in the space created by this gap. It has come to be.

  32 is a cross-sectional plan view taken along the axis 32-32 (shown in FIG. 31) showing the tension mechanism in the open position with the cushion pad 121 inserted into the pocket portion of the cleaning substrate 50. FIG.

  When the tensioning mechanism is closed as shown in FIG. 33, the upper layer is forced to occupy the space created by the gap 370 intermediate the protruding portion 1170 of the male element 170 and the recessed portion 1270 of the female element 270. . In one embodiment, the distance between the male and female elements in the closed position is between about 0.1 mm and 10 mm, preferably between about 0.5 mm and about 5 mm, more preferably between 0.7 mm and about. Between 2 mm. When the tensioning mechanism 70 is closed, the upper layer 350 is placed under tension, which in turn holds the cleaning substrate tightly against the outer surface of the cushion pad 121 as shown in FIG. As a result, the tensioning mechanism reduces loosening of the pocket portion that allows the cushion pad to be inserted into the pocket portion.

  In particular, the tensioning mechanism provides a holding mechanism for holding the cleaning substrate attached to the mop head of the cleaning implement during the cleaning operation. In addition, the tensioning mechanism reduces pocket loosening. In the context of a motorized cleaning implement, it is beneficial to remove this slack in order to move the cleaning substrate and buffer pad relative to the motor. Those skilled in the art will appreciate that the movement of the cleaning substrate relative to the motor may be limited if the cushion pad moves substantially freely within its pocket portion relative to the cleaning substrate. .

  Additionally, the cleaning efficiency of the cleaning substrate used with the cleaning tool is increased when the substrate is securely held on the buffer pad and a larger portion (bottom and side) of the cleaning substrate is available for cleaning. .

  As mentioned above, motorless or motorized cleaning implements can be used with disposable cleaning substrates, preferably with substrates comprising nonwoven materials. The disposable cleaning substrate can be substantially dry or can include a cleaning composition (either liquid or paste) impregnated on the substrate.

  In one embodiment, the user can attach the cleaning substrate to the buffer pad of the motorized instrument and then switch on to move both the cleaning substrate and the buffer pad back and forth along the axis CC. Can be made. The user can then apply the bottom surface of the cleaning substrate to the surface to be cleaned to remove dirt present on this surface. When the cleaning substrate strikes the surface to be cleaned and moves back and forth with a sliding frequency between about 3 Hz and 40 Hz and a displacement amplitude between about 1 mm and about 30 mm, the user can comfortably apply a minimum pressure to the handle. The surface can be cleaned. The motorized cleaning implement can be used even when switched off, but it must be noted that the user needs to move the buffer pad back and forth.

  When the user wants to remove a strong stain or wants to completely rub the surface, the user can apply upward or downward pressure on the handle while still moving the cleaning substrate back and forth .

  When using a motorized cleaning tool to clean a curved surface such as a bathtub or sink, the cleaning base can be moved back and forth with the elastic buffer pad that can be deformed as described above. Can adapt to the surface.

  In addition, when the cleaning substrate is attached to the buffer pad so as to cover the side and bottom surfaces of the buffer pad, the cleaning substrate can be used to simultaneously clean multiple surfaces. For example, a cleaning substrate covering the bottom surface of the buffer pad and the adjacent side surface of the buffer pad can be used to clean a surface formed by two substantially vertical walls. In one embodiment, at least a portion of one of the right or left side of the cushion pad is substantially parallel to the longitudinal axis CC (ie, the axis along which the cushion pad translates back and forth). Can do. In a preferred embodiment, a portion of both the left and right sides is substantially parallel to the longitudinal axis CC. In addition, when the cushion pad includes at least one tip portion (as described above in the context of a motorless instrument) and the cleaning substrate covers the bottom and sides of the tip portion, the cleaning substrate has three substantially It can be used to clean corners formed by vertical walls, or surfaces formed by two parallel walls connected by vertical walls, such as shower tracks.

Surface cleaning method:
The motored or motorless cleaning implements described above can be used for cleaning, polishing, rubbing, or pretreating any surface, indoor or outdoor, for home or business use. Non-limiting examples of surfaces that can be cleaned with such appliances include floors, worktops, bathtubs, shower stalls, outside the car, wheels, tools, furniture, glass doors, outdoor furniture, wooden structures, concrete , Asphalt, bricks, vinyl siding, bathroom equipment, and other surfaces that are difficult to clean and / or reach. Both motorized and motorless cleaning implements can optionally, but preferably include extension poles that can be attached to allow friction in difficult to reach areas.

  The foregoing description of the preferred embodiment of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. In light of the above teachings, modifications or variations are possible and envisioned by those skilled in the art, and the described embodiments are chosen to best illustrate the principles of the invention and its practical application. And described. The scope of the present invention is defined by the claims appended hereto and should be construed as broadly as permitted by the prior art.

  While the specification concludes with claims that particularly point out and distinctly claim the invention, it is believed the present invention will be further understood by reading the following description in conjunction with the accompanying drawings.

Isometric view of “conventional” cleaning implement. 1 is an isometric view of a cleaning implement of one embodiment of the present invention. FIG. The enlarged view of the mop head of the cleaning instrument shown in FIG. The top view of the mop head which has the buffer pad deform | transformed in the XY plane. The side view of the mop head which has the buffer pad deform | transformed in the Z direction. FIG. 3 is an isometric view of another cleaning implement of the present invention. The top view of another washing | cleaning instrument of this invention. FIG. 6B is a plan view of the cleaning instrument of FIG. 6A. The front view of another washing | cleaning implement which has a curved-surface upper surface. The front view of another washing | cleaning implement which has a curved upper surface and a bottom face. FIG. 3 is an isometric view of another cleaning implement of the present invention. FIG. 10 is a front view showing the cleaning tool in FIG. 9 during a cleaning operation. FIG. 3 is an isometric view of another cleaning implement of the present invention. FIG. 3 is a plan view of a cleaning implement and a disposable cleaning substrate placed under the appliance cushion pad. FIG. 13 is a plan view of the instrument of FIG. 12 with a cleaning substrate attached to a buffer pad. FIG. 3 is an isometric view of the device of the present invention, wherein the cushion pad includes hair. Isometric view of a cleaning instrument with a motor. The side view seen diagonally of the instrument with a motor of FIG. FIG. 3 is an isometric view of another motorized cleaning implement. FIG. 17 is an isometric view of the motorized instrument of FIG. 16 with a portion of the mop head housing and handle removed. FIG. 17 is an isometric view of the instrument of FIG. 16 with the handle pushed downward; The elements on larger scale of the instrument with a motor of FIG. The perspective view of another cleaning instrument with a motor. The perspective view of the cleaning implement with a motor which has two attachment structures. Schematic of the mounting structure. FIG. 22B is a perspective view of the motorized instrument of FIG. 22A and a cleaning substrate that is at least partially attached to the cleaning instrument. The side view of the cleaning instrument with a motor of FIG. The top view of a buffer pad provided with a reinforcement member. The perspective view of the washing | cleaning base material of this invention. The right view of the washing | cleaning base material of FIG. FIG. 26 is a cross-sectional view taken along the axis 26-26 of the cleaning substrate of FIG. The perspective view of the tension mechanism in an open position. The perspective view of the washing | cleaning instrument which has a tension mechanism of an open position. FIG. 29 is a perspective view showing a tension mechanism at a closing position of the cleaning instrument in FIG. 28. FIG. 30 is an enlarged perspective cross-sectional view seen along the axis 30-30 of the cleaning tool of FIG. 29; The perspective view of a cleaning instrument and a cleaning base material. Sectional drawing which shows a part of buffer pad inserted in the pocket part of a base material, and the tension mechanism of an open position. FIG. 32 is a cross-sectional view showing a tension mechanism at a closing position of the instrument of FIG. 31.

Claims (24)

A buffer pad for holding the cleaning substrate,
A motor for moving the buffer pad in a reciprocating motion with respect to the motor, wherein the motor is operatively connected to the buffer pad, and is removable to at least a part of the buffer pad. A motorized cleaning implement for cleaning a surface, comprising a connected disposable cleaning substrate.   The motorized cleaning implement of claim 1, further comprising a housing in which the motor is disposed.   4. The motorized cleaning implement of claim 3, wherein the housing comprises a substantially convex upper portion.   The motorized cleaning implement of claim 3, wherein the housing has a recessed portion substantially adjacent to the cushion pad.   The motor-driven cleaning device according to claim 1, wherein the cleaning substrate includes a pocket, and the buffer pad has at least one tip portion inserted into the pocket.   The motorized cleaning implement of claim 5, wherein the tip portion inserted into the pocket is tapered.   The motorized cleaning implement of claim 1, wherein the buffer pad comprises at least one attachment structure for engaging at least a portion of the cleaning substrate.   The motorized cleaning implement of claim 7, wherein the mounting structure is substantially adjacent to a tip portion of the buffer pad.   The motorized cleaning implement of claim 8, wherein the upper space of the mounting structure is not substantially occluded.   The motor-equipped cleaning implement according to claim 1, wherein the buffer pad includes a bottom surface and a side surface, and the cleaning base material covers at least a part of the bottom surface and the side surface.   The motorized cleaning implement of claim 1, wherein the buffer pad reciprocates at a frequency between about 5 Hz and about 50 Hz.   12. The motorized cleaning implement of claim 11, wherein the buffer pad reciprocates with a displacement amplitude of about 1 mm to 30 mm.   The motorized cleaning implement of claim 1, wherein the cushion pad comprises first and second attachment structures for engaging the cleaning substrate.   14. The motorized cleaning implement of claim 13, wherein the first and second attachment structures are substantially adjacent to the tip portion.   The motorized cleaning implement of claim 1, wherein the cleaning substrate comprises at least one layer of nonwoven material.   The motorized cleaning implement of claim 15, wherein the cleaning substrate comprises a cleaning composition.   The motorized cleaning implement of claim 1, wherein the cushion pad has a substantially continuous outer surface.   18. The motorized cleaning implement of claim 17, wherein the cushion pad comprises a material having a Type A durometer less than about 60.   The motorized cleaning implement of claim 1, wherein the cushion pad includes a deformable tip portion.   20. The motorized cleaning implement of claim 19, further comprising a reinforcing member, wherein the reinforcing member is coupled to at least a portion of the deformable tip portion. Supplying a cleaning substrate;
Attaching the cleaning substrate to at least a part of the buffer pad, and bringing the cleaning substrate into contact with a surface to be cleaned, the buffer pad for holding the cleaning substrate and the buffer pad with respect to the motor And cleaning the surface with a motor-equipped cleaning tool comprising the motor for reciprocal movement.   24. The method of claim 21, further comprising operating the motor prior to contacting the cleaning substrate with the surface to be cleaned.   The method of claim 21, further comprising operating the motor after contacting the cleaning substrate with the surface to be cleaned.   The method of claim 21, wherein the cleaning substrate comprises at least one layer of nonwoven material.

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