This invention relates to cleaning devices particularly including cleaning devices for cleaning toilet bowls that include reusable handle assemblies and disposable pads that are releasably engaged with the handle assemblies during use of the cleaning devices.
The prior art is replete with cleaning devices for cleaning toilet bowls that each include a reusable handle assembly and a disposable pad that is releasably engageable with the handle assembly. U.S. Pat. Nos. 2,816,313; 3,221,356; 3,383,158; 4,466,152; 4,493,124; 4,852,201; 5,488,748; 5,592,713; 5,630,243; and 6,295,688; Published Patent Applications US 2002/0025213A1 and 2002/0120993A1; PCT Applications WO 87/00022 and WO 01/15587; and European Patent Application EP 1 190 657 A1 provide illustrative examples. The large number of patents and patent applications in this area is indicative of the amount of effort that has been expended to provide effective easily used cleaning devices for cleaning toilet bowls that require minimum contact with the disposable pad, particularly after the pad has been used.
The present invention provides a cleaning device, that while usable for other cleaning tasks, is particularly adapted for cleaning toilet bowls, which cleaning device includes a reusable handle assembly and a disposable pad that are easy to assemble, provide effective cleaning when assembled; and require little or no contact with the disposable pad to remove it from the handle assembly after the pad has been used.
According to the present invention there is provided a handle assembly for use with a fibrous cleaning pad having a slit opening through a side surface of the cleaning pad. The handle assembly includes a generally rigid first member including a first insertable portion having opposite inner and outer surfaces extending between first and second opposite ends, and a handle portion with a first end of the handle portion fixed to the second end of the first insertable portion and a manually engageable part adjacent a second opposite end of the handle portion. The handle assembly also includes a second member including a second insertable portion having opposite inner and outer surfaces extending between first and second opposite ends, and an actuation portion having a first end fixed to the second end of the second insertable portion. The first end of the second insertable portion is pivotally mounted on the first end of the first insertable portion with the inner surfaces of the insertable portions adjacent for relative movement of the insertable portions by manual manipulation of the actuation portion between a diverging position with the outer surfaces of the insertable portions diverging from their first ends, and an adjacent position with the outer surfaces of the insertable portions generally parallel or closer to parallel than in their diverging position. At least one of the insertable portions (and preferably both) has one or more barbs projecting from its inner surface, and the other of the insertable portions has an opening aligned with that barb. The barb or barbs project above the outer surface of the other of the insertable portions in the adjacent position of the insertable portions so that with the insertable portions in the slit in the cleaning pad the barbs will engage the cleaning pad. The barbs are positioned between the outer surfaces of the insertable portions in their diverging position so that the insertable portions can move into or out of the slit in the cleaning pad.
By manual manipulation of the actuation portion a user of the handle assembly can position the insertable portions either in their diverging position so that the cleaning pad can be moved onto or off of the insertable portions without contacting the barb or barbs, or can position the insertable portions in their adjacent position so that the barb or barbs will engage the cleaning pad when it is positioned on the insertable portions to retain the cleaning pad on the handle assembly while the cleaning device is being used for cleaning. When the insertable portions are moved to their diverging position while received in the slit in the cleaning pad the wedge-like position of the outer surfaces of the insertable portions can cause the cleaning pad to slide off of the insertable portions with little or no external contact with the cleaning pad so that the cleaning pad can be removed without being contacted by the user of the handle assembly.
The barbs can project at about right angles to the inner surfaces of the insertable portions in which case the insertable portions can be moved into or out of the slit in the cleaning pad with the insertable portions in their diverging position. Alternatively, the barbs can be inclined toward the second end of the insertable portions and shaped so that the insertable portions can be moved into the slit in the cleaning pad with the insertable portions in their adjacent position.
The handle assembly can be a generally rigid member manually moveable between a closed position laying along the handle portion to position the insertable portions in the adjacent position, and an open position spaced from the handle portion to position the insertable portions in the diverging position, and the handle assembly can include means for releasably latching the handle and actuation portions in the closed position. Alternatively the actuation portion of the handle assembly can be a mounted for sliding movement along the handle portion between a closed position to position the insertable portions in the adjacent position, and an open position with the first end of the actuation portion closer to the insertable portions than in the closed position to position the insertable portions in the diverging position. The actuation portion can include a manually engageable button moveable along the handle member to afford manual movement of the insertable portions between the adjacent and open positions.
The present invention will be further described with reference to the accompanying drawings wherein like reference numerals refer to like or corresponding parts throughout the several views, and wherein:
Referring to
The cleaning pad 12 is a pad of stiff resiliently flexible fibrous material (e.g., preferably a pad of non-woven polymeric fibers such as the material sold under the trade designation “Scotchbrite” by 3M Company, St. Paul, Minn., although other materials could be used), to which fibers may be adhered an abrasive which helps to clean but will not scratch toilet bowls, (e.g., the abrasive mineral commercially designated “Minex” that is available from Cary Co., Adison, Ill.). The cleaning pad or pad 12 has opposite parallel generally omega shaped major surfaces 13 and has contacting or closely spaced inner surfaces midway between and parallel to its major surfaces 13 that define a slot or slit 14 opening only through one edge surface of the cleaning pad 12. The cleaning pad 12 may, optionally, be impregnated with all or any one or ones of a cleaning material (e.g., soap), a dye, and a fragrance.
The handle assembly 11 includes a stiff first member 15 (e.g., molded of a polymeric material such as polypropylene). The first member 15 includes an elongate first insertable portion 16 having opposite first and second ends 17 and 18 and opposite generally parallel inner and outer surfaces 19 and 20 extending between its first and second ends 17 and 18; and an elongate handle portion 22 having opposite first and second ends 23 and 24. The first end 23 of the handle portion 22 is fixed to the second end 18 of the first insertable portion 16. The handle portion 22 has a manually engageable part 26 adjacent its second end 24, which has a through opening 27 by which the handle assembly 11 can be hung from a projection.
The handle assembly 11 also includes a second member 28 (e.g., also molded of a polymeric material such as polypropylene) including a stiff elongate second insertable portion 30 having opposite first and second ends 31 and 32 and opposite generally parallel inner and outer surfaces 33 and 34 extending between its first and second ends 31 and 32, and an elongate actuation portion 36 having opposite first and second ends 37 and 38 that includes a part that is resiliently flexible adjacent its second end 38, and has longitudinally extending reinforcing ribs 35 to stiffen a part thereof adjacent its first end 37. The first end 37 of the actuation portion 36 is fixed to the second end 32 of the second insertable portion 30 by a hinge 39 of the type called a “living hinge” which is a thin flexible section of polymeric material joining the second first end 37 of the actuation portion 36 and the second end 32 of the second insertable portion 30.
The first end 31 of the second insertable portion 30 is pivotally mounted on the first end 17 of the first insertable portion 16 with the inner surfaces 19 and 33 of the insertable portions 16 and 30 adjacent for relative movement of the insertable portions 16 and 30 by manipulation of the actuation portion 36 between a diverging position or positions (
The actuation portion 36 of the second member 28 is mounted for sliding movement along the handle portion 22 between a closed position to position the insertable portions 16 and 30 in their adjacent position (
The first and second members 15 and 28 can be integrally molded in one piece with the first end 31 of the second insertable portion 30 pivotally mounted on the first end 17 of the first insertable portion 16 by a hinge 48 of the type called a “living hinge” which is a thin flexible section of polymeric material joining the first ends 17 and 31 of the insertable portions 16 and 30. Alternatively, the first and second members 15 and 28 could be separately molded and the hinge 48 could be of a different type, such as a hinge having a central cylindrical portion transversely fixed on the first end 17 or 31 of one of the insertable portions 16 or 30 flanked by and aligned with two spaced cylindrical portions transversely fixed on the first end 31 or 17 of the other insertable portion 30 or 16, which hinge further includes a hinge pin extending through central openings in those three cylindrical portions.
The flexible plate like part of the actuation portion 36 adjacent its second end 38 is mounted for sliding movement along the handle portion 22 between an inner surface 43 of a top wall included in the handle portion 22 and opposed tabs 44 projecting from opposite side walls 45 included in the handle portion 22. The top wall has openings 46 aligned with the tabs 44 that facilitate molding the tabs 44 along the side walls 45. The manually engageable button 42 has a narrow portion projecting from the actuation portion 36 that is sufficiently narrow so that it can slide along an elongate slot 47 extending centrally along and through the top wall and inner surface 43 of the handle portion 22. The button 42 also has a distal head larger that its narrow portion that slides along the outer surface of the top wall. The slot 47 extends past the tabs 44 toward the first end 23 of the handle portion 22 and has an enlarged opening adjacent the first end 23 of the handle portion 22 through which the distal head of the button 42 can pass. To assemble the handle assembly 11 from a unitary molding including the first and second members 15 and 28, the head of the manually engageable button 42 (which is adjacent the second end 38 of the actuation portion 36) is moved through the enlarged opening in the slot 47 adjacent the first end 23 of the handle portion 22 and slid along the slot 47 toward the second end 24 of the handle portion 22 so that the flexible end part of the actuation portion 36 moves between the tabs 44 and the inner surface 43. Opposed projections 49 spaced a short distance from the end of the slot 47 adjacent the second end 24 of the handle portion 22 and spaced apart so that they will interfere with, but not prevent passage of, the narrow portion of the button 42 provide a tactile indication when passed that the button 42 has reached a position at which the insertable portions 16 and 30 are in their adjacent position. The opposed projections 49 also help to releasably retain the button 42 at its position with the insertable portions 16 and 30 in their adjacent position. Subsequently, manual movement of the button 42 toward the first end 23 of the handle portion 22 will cause relative pivotal movement of the insertable portions 16 and 30 from their adjacent position (
To use the cleaning device 10 a user can first insert the insertable portions 16 and 30 into the slit 14 in the cleaning pad 12 which can be done with the insertable portions 16 and 30 in their adjacent position, thereby causing the sloped outer surfaces of the barbs 40 to move along and spread the surfaces of the cleaning pad 12 defining the slit 14 until a ledge at the first end 23 of the handle portion 22 abuts the side surface of the cleaning pad 12 (
As a non-limiting example, the insertable portions 16 and 30 can each have a length of about 1.75 inch or 4.45 cm, a width of about 1 inch or 2.54 cm, and a thickness of about 0.15 inch or 0.38 cm, and the points of the barbs 40 can be about 0.25 inch or 0.64 cm above the outer surface 20 or 34 of the insertable portion 16 or 30 through which they project when the insertable portions 16 and 30 are in their adjacent position.
Referring to
The cleaning pad 52 is a pad of stiff resiliently flexible fibrous material (e.g., a pad of the same material described above for the pad 12). The cleaning pad 52 has opposite parallel major generally oval shaped major surfaces 53 and has contacting or closely spaced inner surfaces midway between and parallel to its major surfaces 53 that define a slot or slit 54 opening only through one side surface of the cleaning pad 52. The cleaning pad 52 may optionally be impregnated with one or more of the same materials noted above that can be used with the cleaning pad 12.
The handle assembly 51 includes a stiff first member 55 (e.g., molded of a polymeric material such as polypropylene). The first member 55 includes an elongate first insertable portion 56 having opposite first and second ends 57 and 58 and opposite generally parallel inner and outer surfaces 59 and 60 extending between its first and second ends 57 and 58; and an elongate handle portion 62 having opposite first and second ends 63 and 64. The first end 63 of the handle portion 62 is fixed to the second end 58 of the first insertable portion 56. The handle portion 62 has a manually engageable part 66 adjacent its second end 64. The handle assembly 51 also includes a stiff second member 68 (e.g., also of a polymeric material such as polypropylene). The second member includes an elongate second insertable portion 70 having opposite first and second ends 71 and 72 and opposite generally parallel inner and outer surfaces 73 and 74 extending between its first and second ends 71 and 72, and a stiff elongate actuation portion 76 having opposite first and second ends 77 and 78. The first end 77 of the actuation portion 76 is fixed to the second end 72 of the second insertable portion 70. The first end 71 of the second insertable portion 70 is pivotally mounted on the first end 57 of the first insertable portion 56 with the inner surfaces 59 and 73 of the insertable portions 56 and 70 adjacent for relative movement of the insertable portions 56 and 70 by manipulation of the actuation portion 76 between a diverging position (
The actuation portion 76 of the second member 68 is a generally rigid member manually moveable between a closed position laying along the handle portion 62 to position the insertable portions 56 and 70 in their adjacent position (
The first end 71 of the second insertable portion 70 is pivotally mounted on the first end 57 of the first insertable portion 56 by a hinge 88. The hinge 88 could be the type called a “living hinge” which is a thin strip of polymeric material joining the insertable portions 56 and 70 if the first and second members 55 and 68 are integrally molded. Alternatively, the hinge 88 could be of any other suitable type such a hinge having a central cylindrical portion transversely fixed on the first end 57 or 71 of one of the insertable portions 56 or 70 flanked by and aligned with two spaced cylindrical portions transversely fixed on the first end 71 or 57 of the other insertable portion 70 or 56, which hinge further includes a hinge pin extending through central openings in those three cylindrical portions.
To use the cleaning device 50 a user first moves the insertable portions 56 and 70 to their diverging position by releasing the latching projection 84 between the actuation portion 76 and handle portion 62 and moving the actuation portion 76 away from the handle portion 62. The user then inserts the insertable portions 56 and 70 into the slit 54 in the cleaning pad 52 with the insertable portions 56 and 70 in their diverging position (
The present invention has now been described with reference to two embodiments. It will be apparent to those skilled in the art that many changes can be made in the embodiments described without departing from the scope of the present invention. For example, insertable portions 16 and 30 with barbs 40 shaped like those described above with reference to the handle assembly 11 can be substituted for the insertable portions 56 and 70 on the handle assembly 51. That substitution would provide the advantage over the handle assembly 51 as described above that the insertable portions 16 and 30 could remain in their adjacent position when they are inserted into the slot 14 or 54 in the cleaning pad 12 or 52. Thus, the scope of the present invention should not be limited to the structures and methods described in this application, but only by the structures and methods described by the language of the claims and the equivalents thereof.
Number | Name | Date | Kind |
---|---|---|---|
2816311 | Beck et al. | Dec 1957 | A |
2816313 | Beck et al. | Dec 1957 | A |
3221356 | Schirmer | Dec 1965 | A |
3383158 | Leland | May 1968 | A |
4466152 | Moss et al. | Aug 1984 | A |
4493124 | Agapiou | Jan 1985 | A |
4852201 | Wundrock et al. | Aug 1989 | A |
5488748 | Koch | Feb 1996 | A |
5592713 | Rones | Jan 1997 | A |
5630243 | Federico et al. | May 1997 | A |
6295688 | Sayles et al. | Oct 2001 | B1 |
6611986 | Seals | Sep 2003 | B1 |
20020025213 | Serna | Feb 2002 | A1 |
20020120993 | Busha | Sep 2002 | A1 |
20040088808 | Vitantonio et al. | May 2004 | A1 |
Number | Date | Country |
---|---|---|
1 190 657 | Mar 2002 | EP |
10 211119 | Aug 1998 | JP |
WO 8700022 | Jan 1987 | WO |
WO 0115587 | Mar 2001 | WO |
Number | Date | Country | |
---|---|---|---|
20050055789 A1 | Mar 2005 | US |