Articulating assemblies for cleaning tools and methods of use

Abstract

An adapter and method for a tool, a mop or other cleaning equipment provides, selectively, a universal joint or pivoting joint, and one that is easily adjustable.

Claims

1. An adapter for a cleaning tool comprising: first and second walls having respective surfaces facing each other wherein the first wall includes a first surface configuration, and wherein each of the first and second walls are configured to support at least one of a cleaning head and a handle; a handle adapter for coupling a handle to the first and second walls, wherein the handle adapter includes first handle adapter wall surfaces configured to interface with the first surface configuration on the first wall to permit relative movement between the handle adapter and the first and second walls in a first amount, and wherein the handle adapter includes second handle adapter wall surfaces configured to interface with the first surface configuration on the first wall to permit relative movement between the handle adapter and the first and second walls in a second amount.

2. The adapter of claim 1 wherein the second handle adapter wall surfaces are configured to interface with the first surface configuration on the first wall to substantially prevent relative movement between the handle adapter and the first and second walls.

3. The adapter of claim 1 wherein the first handle adapter wall surfaces are configured to interface with the first surface configuration on the first wall to permit relative movement between the handle adapter and the first and second walls through an approximate arc of about 180.

4. The adapter of claim 1 wherein the first and second walls are joined by a curved bottom wall, and wherein the first surface configuration faces the second wall.

5. The adapter of claim 4 wherein the curved bottom wall is partially circular.

6. The adapter of claim 4 further including a fastener securing the handle adapter to the first and second walls.

7. The adapter of claim 6 wherein the fastener extends through respective openings in the first and second walls and in the handle adapter.

8. The adapter of claim 4 further including a mop head secured to a pivot shaft and wherein the curved bottom wall of the adapter extends around a portion of the pivot shaft.

9. The adapter of claim 8 further including a fastener configured to secure the curved bottom wall about the pivot shaft, and wherein the fastener and the curved bottom wall are configured so that tightening of the fastener tightens the curved bottom wall about the pivot shaft.

10. The adapter of claim 9 wherein the fastener is configured to secure the first and second walls and the handle adapter together and wherein tightening the fastener also tightens an engagement between the first and second walls and the handle adapter.

11. The adapter of claim 8 wherein the adapter is configured to be removable from the pivot shaft.

12. The adapter of claim 4 wherein the second wall includes a second surface configuration configured to interface with a surface configuration on the handle adapter.

13. The adapter of claim 12 wherein the second surface configuration of the second wall is different than the first surface configuration of the first wall.

14. The adapter of claim 13 wherein the first surface configuration on the first wall includes flat surfaces, and the second surface configuration on the second wall includes curved surfaces and wherein the second handle adapter wall surfaces include flat surfaces configured such that the second handle adapter wall surfaces contact the flat surfaces on the first surface configuration on the first wall and limit relative movement between the handle adapter and the first and second walls.

15. The adapter of claim 14 wherein the first and second handle adapter wall surfaces are on opposite sides of the handle adapter.

16. The adapter of claim 15 wherein the handle adapter is configured to fit between the first and second walls so that either the first handle adapter wall surfaces face and interface with the first surface configuration on the first wall or face and interface with the second surface configuration on the second wall.

17. The adapter of claim 1 further including a handle engaging the handle adapter.

18. The adapter of claim 1 further including a fastener extending into the first wall and secured with respect to the first wall to limit removal of the fastener.

19. The adapter of claim 18 further including a nut captured in the second wall and secured with respect to the second wall to limit removal of the nut.

20. The adapter of claim 1 wherein the first and second walls are joined together and configured such that the first and second walls can pivot about an axis approximately 180 and wherein the handle adapter and the first and second walls can be configured to permit the handle adapter to pivot about an axis approximately 180.

21. A method of operating a cleaning tool having an adapter comprising first and second walls having respective surfaces facing each other wherein the first wall includes a first surface configuration, and wherein each of the first and second walls are configured to support at least one of a cleaning head and a handle, and a handle adapter for coupling a handle to the first and second walls, wherein the handle adapter includes first handle adapter wall surfaces configured to interface with the first surface configuration on the first wall to permit relative movement between the handle adapter and the first and second walls in a first amount, and wherein the handle adapter includes second handle adapter wall surfaces configured to interface with the first surface configuration on the first wall to permit relative movement between the handle adapter and the first and second walls in a second amount and wherein the method comprises: combining the handle adapter with the first and second walls of the cleaning tool adapter in a first configuration so that the handle adapter and the first and second walls can pivot relative to each other, and separating the handle adapter from the first and second walls and combining the handle adapter with the first and second walls in a second configuration so that relative pivoting of the handle adapter and the first and second walls is reduced relative to the pivoting in the first configuration.

22. The method of claim 21 wherein combining the handle adapter with the first and second walls includes inserting a portion of the handle adapter between spaced apart first and second walls of the cleaning tool adapter.

23. The method of claim 22 wherein combining the handle adapter with the first and second walls includes placing an arcuate surface of the handle adapter against an arcuate surface of the cleaning tool adapter.

24. The method of claim 22 wherein combining the handle adapter with the first and second walls includes placing a plurality of flat surfaces of the handle adapter adjacent at least one flat surface on at least one of the first and second walls.

25. The method of claim 21 further including inserting a fastener through an opening in the handle adapter.

26. The method of claim 25 further including tightening the fastener to reduce the ease of relative pivoting between the handle adapter and the first and second walls.

27. The method of claim 25 further including tightening the fastener to reduce the ease of relative pivoting between the cleaning tool adapter and a cleaning head.

28. The method of claim 21 further including pivoting the cleaning tool adapter about an axis on a cleaning head.

29. The method of claim 21 further including pivoting the handle adapter relative to the first and second walls through an angle of approximately 180.

30. The method of claim 21 further including pivoting the cleaning tool adapter relative to a cleaning head through an angle of approximately 180.

31. An adapter for a working tool wherein the working tool will include a working head and a manual control component, the adapter comprising: a control adapter configured to receive a control element, a tool adapter configured to receive a working head, wherein the control adapter and the tool adapter have respective first surfaces for engaging each other to allow relative pivoting between the control adapter and the tool adapter, and wherein at least one of the control adapter and the tool adapter have a second surface that engages the first surfaces on the other of the control adapter and the tool adapter to change the amount of relative pivoting between the control adapter and the tool adapter.

32. The adapter of claim 31 wherein the tool adapter includes the first and second surfaces.

33. The adapter of claim 31 wherein the tool adapter first surface includes arcuate surfaces, and the tool adapter second surface includes a plurality of flat surfaces.

34. The adapter of claim 31 wherein the tool adapter first surface is circular, and the tool adapter second surface is rectilinear.

35. The adapter of claim 31 wherein the tool adapter includes spaced apart walls and wherein the tool adapter first surface is on a first wall of the tool adapter, and a second wall of the spaced apart walls includes the second surface.

36. The adapter of claim 31 wherein the tool adapter first surface and the tool adapter second surface face each other.

37. The adapter of claim 31 wherein the control adapter first surface has a plurality of straight sides and the control adapter includes a second surface having a curved face.

38. The adapter of claim 31 wherein the tool adapter includes an opening at one end for receiving a portion of the control adapter and an arcuate wall at a second end spaced from the opening for engaging a portion of a working head.

39. The adapter of claim 31 wherein a second surface of the tool adapter is partially circular.

40. The adapter of claim 31 further including a fastener for securing the control adapter and the tool adapter.

41. The adapter of claim 40 wherein the tool adapter and the fastener are configured so that tightening the fastener will increase pivoting friction for relative movement between the tool adapter and the handle adapter.

42. The adapter of claim 41 wherein the pivoting friction arises from engagement of a circular boss with a circular cavity.

43. The adapter of claim 40 wherein the fastener is removably retained on the tool adapter.

44. The adapter of claim 40 further including a nut removably retained on the tool adapter.

45. The adapter of claim 31 wherein the control adapter is configured to receive a handle for controlling the adapter.

46. The adapter of claim 31 wherein the tool adapter is configured to support a cleaning head.

47. The adapter of claim 31 wherein the tool adapter first surface and the tool adapter second surface face away from each other.

48. The adapter of claim 47 wherein the control adapter includes a pair of walls extending on opposite sides of the tool adapter.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an upper right front isometric view of a mop assembly incorporating a configurable universal joint or adapter according to one example disclosed herein.

(2) FIG. 2 is a detailed view of part of the assembly of FIG. 1.

(3) FIG. 3 is an exploded view of the assembly illustrated in FIG. 2.

(4) FIG. 4 is a top plan view of a mop frame and adapter assembly of FIG. 1.

(5) FIG. 5 is a longitudinal cross-section of the assembly of FIG. 4 taken along line 5-5.

(6) FIG. 6 is a partial sagittal cross-section of FIG. 4 taken along line 6-6 of FIG. 5.

(7) FIG. 7 is a partial sagittal cross-section of FIG. 4 taken along line 7-7 of FIG. 5.

(8) FIG. 8 is an upper right front isometric and exploded view of part of the assembly of FIG. 1.

(9) FIG. 9 is an upper right back isometric and exploded view of part of the assembly of FIG. 1.

(10) FIG. 10 is a side elevation view of a center pivot, part of the adapter of FIG. 1.

(11) FIG. 11 is a vertical section through the center pivot taken along line 11-11 of FIG. 10.

(12) FIG. 12 is a vertical section through the center pivot taken along line 12-12 of FIG. 10.

(13) FIG. 13 is a left elevation view of a pole pivot, part of the adapter of FIG. 1.

(14) FIG. 14 is a front elevation view of the pole pivot of FIG. 13.

(15) FIG. 15 is a right side elevation view of the pole pivot of FIG. 13.

(16) FIG. 16 is a longitudinal side cross section of the assembly taken along a line similar to a line 5-5 of FIG. 4.

DETAILED DESCRIPTION

(17) This specification taken in conjunction with the drawings sets forth examples of apparatus and methods incorporating one or more aspects of the present inventions in such a manner that any person skilled in the art can make and use the inventions. The examples provide the best modes contemplated for carrying out the inventions, although it should be understood that various modifications can be accomplished within the parameters of the present inventions.

(18) Examples of tools and of methods of making and using the tools are described. Depending on what feature or features are incorporated in a given structure or a given method, benefits can be achieved in the structure or the method.

(19) These and other benefits will become more apparent with consideration of the description of the examples herein. However, it should be understood that not all of the benefits or features discussed with respect to a particular example must be incorporated into a tool, component or method in order to achieve one or more benefits contemplated by these examples. Additionally, it should be understood that features of the examples can be incorporated into a tool, component or method to achieve some measure of a given benefit even though the benefit may not be optimal compared to other possible configurations. For example, one or more benefits may not be optimized for a given configuration in order to achieve cost reductions, efficiencies or for other reasons known to the person settling on a particular product configuration or method.

(20) Examples of a number of tool configurations and of methods of making and using the tools are described herein, and some have particular benefits in being used together. However, even though these apparatus and methods are considered together at this point, there is no requirement that they be combined, used together, or that one component or method be used with any other component or method, or combination. Additionally, it will be understood that a given component or method could be combined with other structures or methods not expressly discussed herein while still achieving desirable results.

(21) Cleaning tools are used as examples of a tool that can incorporate one or more of the features and derive some of the benefits described herein, and in particular mops. Tools other than mops can benefit from one or more of the present inventions.

(22) It should be understood that terminology used for orientation, such as front, rear, side, left and right, upper and lower, and the like, are used herein merely for ease of understanding and reference, and are not used as exclusive terms for the structures being described and illustrated.

(23) A mop assembly 100 (FIGS. 1-9) can take a number of configurations. Typically, the mop includes a mop head 102, in the present example a frame or pad support having a rectilinear configuration for supporting a cleaning material (not shown). However, other mop heads can be used with the adapter or universal joint described herein. Mops and other cleaning tools can also have a number of configurations for manipulating or handling the tool. In the present example, a handle 104 is removably secured to the assembly through a threaded collar 106. Other handle configurations may also be used with the adapter disclosed herein. Grommets 108 retain cloth, fabric or other material between the leaves of the grommet. The grommets snap into openings in the mop head. The mop head may also include a U-shaped or other shaped opening or cavity 110 (FIG. 2) for accommodating a head (214 below) or other structural part of a fastener on the adapter, for example so the mop face and the handle can both lie flat or extend in substantially parallel planes.

(24) In the present example, an adapter 200 provides an interface between the mop head 102 and the handle 104. The adapter 200 is an adjustable adapter. In one example, the adapter 200 is adjustable through a single component, such as a screw or bolt, described more fully below. Additionally, in the configuration described herein, the adapter 200 is also reconfigurable from a first configuration to a second configuration.

(25) In one exemplary configuration, the adapter 200 is coupled to the mop head by a hub or bracket 202. The bracket is fixed to the mop head by being formed integral or monolithic with the mop head, and includes first and second supports 204 and 206 spaced apart and supporting a pivot axle or shaft 208 (FIG. 5). The rest of the adapter pivots about a longitudinal axis defined by the pivot shaft. The pivot shaft allows the mop head and handle to pivot with respect to each other through an angle of approximately 180. In other examples, the hub or bracket 202 can be removably secured to the mop head through a number of configurations, for example fasteners, interlocks or in other ways.

(26) The adapter includes a center pivot 210 (FIGS. 1-12). The center pivot 210 is configured to pivot about the pivot shaft 208. The center pivot provides the interface between the mop head 102 and the handle 104 so that the mop head and the handle can pivot through approximately 180 in a vertical plane perpendicular to the mop head. The center pivot 210 also provides support structure to allow pivoting of the handle about an axis transverse (or otherwise) to the pivot shaft 208. Additionally, the center pivot 210 provides means for adjusting the looseness or ease with which the mop head and handle pivot relative to each other. The center pivot 210 further provides surfaces for allowing the adapter to be reconfigured between first and second configurations, for example from a universal joint allowing 360 motion in a hemisphere to a single pivot configuration allowing 180 pivoting movement in a single plane.

(27) The center pivot 210 supports a pole pivot 212. The pole pivot 212 can pivot relative to the center pivot 210 about an axis defined by a fastener 214, and which may be perpendicular to the pivot shaft. The fastener may be fixed so that the pole adapter 212 is permanently attached to the center pivot 210, or the fastener may be removable. In the present example, the fastener 214 is a threaded bolt having a head to be engaged or manually turned for removing and reinserting the bolt in the center pivot and through an opening in the pole pivot 212. In the illustrated example, the fastener 214 threads into and is secured to a nut 216. The fastener includes a reduced-diameter shank between the head and the threaded portion to minimize any interference between the shank and the bore in which it is placed. An E-clip or other retainer 218 keeps the fastener from falling out when it is unthreaded from the nut.

(28) The center pivot includes a front flange 220 and a back flange 222. The fastener 214 can turn within the center pivot and move in and out, while the nut 216 is rotatably captured in the hex cavity in the back flange 222. The nut 216 may also be axially but removably captured in the cavity by detents, interference with one or more surfaces or otherwise so it cannot easily fallout of the cavity when the fastener 214 is disengaged. In the present configuration of the center pivot, the fastener can be used to tighten and loosen the pivot motion of the center pivot about the pivot shaft 208. The fastener can also be used to tighten and loosen the pivot motion of the handle relative to the center pivot by tightening or loosening the fastener. Additionally, the fastener can be used to release the pole pivot and change the configuration of the adapter from a first configuration to a second configuration. Alternatively, a fixed fastener such as a rivet can secure the pole pivot to the center pivot in one or the other of the configurations.

(29) The pole pivot 212 includes a structure 224, in the present example a shaft, for supporting the pole 104. The shaft includes a threaded portion for receiving the collar 106 for securing the pole within the shaft. The pole pivot 212 includes a mounting portion 226 for engaging the center pivot 210. In one configuration of the pole pivot in the center pivot, the pole pivot can pivot through 180 about the axis of the fastener 214. In another configuration, the pole pivot is rotationally locked or fixed relative to the center pivot.

(30) In the illustrations of the assembly shown in FIGS. 1-9, the adapter is configured as a full universal joint allowing relative pivoting motion between the mop head and handle throughout a hemisphere above the mop head, 360 over the top face of the mop head. An arcuate cavity 228 on one exterior side of the pole pivot 212 fits over a noncircular boss 230 on the center pivot (FIG. 6), allowing the pole pivot to slide over the surface of the noncircular boss 230. Additionally, a non-circular cavity 232 on the opposite exterior side of the pole pivot fits over a circular boss 234 on the center pivot (FIG. 7). In this configuration, the surfaces of the pole pivot easily rest on the adjacent surfaces on the center pivot, and the pole pivot can easily pivot relative to the center pivot, about an axis defined by the fastener 214. The parts are fully supported, but pivot freely from side to side.

(31) When the fastener 214 is releasable, the fastener can be unthreaded from the nut 216 and withdrawn from the opening 236 in the pole pivot (FIGS. 13 and 15). The pole pivot can then be removed from the center pivot, rotated 180 about its longitudinal axis and reinserted into the center pivot. In this configuration, the non-circular cavity 232 formed in the pole pivot fits over and engages the noncircular boss 230 on the center pivot. In the illustrated examples, the noncircular cavity and the noncircular boss are both square or slightly trapezoidal profiles, for easy application, and the cavity 232 easily fits over the boss 230. In this configuration, the pole and pole pivot are pivotally locked relative to the axis defined by the fastener 214. Consequently, the pole only pivots about the pivot shaft 208. Even though the pole pivot and the center pivot are fixed relative to each other, the boss 230 adequately supports the cavity 232, and the arcuate cavity 228 is adequately supported on the circular boss 234. It should be understood that other geometric configurations are possible than the non-circular cavity and non-circular boss, but the non-circular geometry provides a relatively secure and reliable holding function, for example with long handles and large mop heads.

(32) Where the fastener 214 is not removable, the original assembly will determine whether or not the pole pivot and the center pivot are permanently configured in a first configuration, for example universal pivoting in a hemisphere over 360, or in a second configuration, with only 180 pivoting in a vertical plane perpendicular to the mop head 102. Alternatively, the original assembly can include a releasable fastener, which could be replaced by a fixed fastener, or a fixed fastener could be removed and replaced with a releasable fastener, with appropriate components.

(33) The center pivot 210 includes a pivoting support portion 238 for supporting the center pivot as it pivots about the pivot shaft 208. The pivot support portion is partially semicircular or annular, and partially flat sided. The pivot support portion includes the respective front and back flanges 220 and 222 (FIGS. 10-12) and supports the flanges on the pivot shaft. The semicircular portion of the center pivot extends in a substantially circular shape with a substantially circular profile for contacting the pivot shaft from a first point 240 to a second point 242. The internal surface contacting the pivot shaft is substantially smooth and continuous. The semicircular portion 244 terminates at each side in substantially identical and facing flat surfaces 246. Both the semicircular and the flat surfaces extend the entire width of the center pivot. The flat surfaces help to apply compressive forces to the pivot shaft to help in holding the center pivot at a given angular position about the pivot shaft. Tightening or loosening the fastener 214 applies more or less pressure through the flat surfaces 246 specifically and the semicircular portion 244 generally, among other locations on the center pivot. Consequently, the fastener 214, when adjustable, can help to set the looseness or tightness of the adapter for pivoting about the pivot shaft 208.

(34) After the flat surfaces 246, the walls of the center pivot diverge outwardly to the front and back flanges 220 and 222. The front and back flanges are substantially uniform in outside profile, and have approximately the same width and height. The front flange includes an external boss 248 against which the head of the fastener bears, and which receives the lock clip 218 (FIG. 3). The inside surface of the front flange includes the non-circular profile 230 having draft surfaces 250 and 252. An opening 254 is substantially centered in the non-circular profile 230, and is surrounded by a substantially circular boss 256 for engaging a complementary surface 258 or 260 on either side of the pole pivot 212 (FIGS. 13 and 15). A similar boss 262 is substantially centered about an opening 264 in the backside flange 222, and engages one or the other of the complementary surfaces 258 or 260 when the pole pivot is in position sandwiched between the front and back flanges 220 and 222 of the center pivot. The bosses 256 and 262 and the counter bores 258 and 260 help to support the pole pivot in the center pivot even without a fastener 214 having been secured. They also help to isolate parts from the captive fastener during normal rotation of the handle, and helping to minimize the tendency of an unthreading action.

(35) The pole pivot 212 includes a substantially circular disk 266 supported at the bottom of the pole pivot shaft. The opening 236 extends completely through the circular disk. The counter bore 258 is formed into one side of the disc, and the counter bore 260 is formed into the other side of the disc. The noncircular cavity 232 is formed on the respective surface of the disc through substantially straight walls extending outward from the disk surface. The arcuate cavity 228 is formed on the oppositely-facing surface of the disk 266, and has a substantially semi-circular geometry. Walls defining the semicircular cavity extend outward from the respective surface of the disk 266, and terminate approximately at the level of the bottom of the counter bore 260.

(36) When the center pivot, pole pivot and fastener are assembled, the circular portion of the pole pivot 212 is inserted between the flanges of the center pivot (FIG. 16). Fastener 214 is secured by threading into the nut 216 until the desired tightness is reached for the pivoting components. As the tightening is initially begun, the center pivot and the pole pivot are configured such that the upper portions 262 of the flanges 220 and 222 bear more tightly against the adjacent surfaces of the pole pivot 212 than do the bosses 256 and 262, and the semicircular pivot support 238. Consequently, loading or force is applied to a greater extent by the upper portions 262. As the fastener is tightened further, for example to tighten the pivoting motions, more loading or force is applied by the bosses 256 and 262, and also by the flat surfaces 246 about the pivot shaft 208. In this way, the single fastener 214 can be used to adjust the tightness of both pivoting actions, i.e. about the axis of the pivot shaft 208 and about the axis of the fastener 214.

(37) The material of the pivot shaft, pole pivot and the center pivot may be formed from Delrin, or similar materials. It may also be talc filled polypropylene.

(38) Having thus described several exemplary implementations, it will be apparent that various alterations and modifications can be made without departing from the concepts discussed herein. Such alterations and modifications, though not expressly described above, are nonetheless intended and implied to be within the spirit and scope of the inventions. Accordingly, the foregoing description is intended to be illustrative only.