Floor treatment apparatus

• US 9,757,005 B2
• Filed: 08/24/2016
• Issued: 09/12/2017
• Est. Priority Date: 05/14/2003
• Status: Expired due to Term

• Current Assignee: Karcher North America Incorporated (Alfred Kärcher SE & Co. KG)
• Original Assignee: Karcher North America Incorporated (Alfred Kärcher SE & Co. KG)
• Inventors: Pedlar, Roger, Pearson, Daniel, Shark, Eric L., Venard, Daniel C., Doll, Brian J., Simmon, Rusty, Green, Nevin, Tran, Loi X., Gorsky, Robert S.
• Primary Examiner(s): CHIN, RANDALL E
• Application Number:
  US15/245,488
• Publication Number:
  US 20160360941A1
• Time in Patent Office: 384 Days
• CPC Class Codes: A47L 11/03 characterised by having provisions for supplying cleaning or polishing agents A47L11/065, A47L11/085, A47L11/125, A47L11/145, A47L11/161, A47L11/1625, A47L11/185, A47L11/201 take precedence
• CPC Class Codes: A47L 11/145 with supply of cleaning agents
• CPC Class Codes: A47L 11/16 the tools being disc brushes
• CPC Class Codes: A47L 11/20 combined with vacuum cleaning devices
• CPC Class Codes: A47L 11/24 Floor-sweeping machines, motor-driven
• CPC Class Codes: A47L 11/292 having rotary tools A47L11/30 takes precedence
• CPC Class Codes: A47L 11/302 having rotary tools
• CPC Class Codes: A47L 11/305 the tools being disc brushes
• CPC Class Codes: A47L 11/34 Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
• CPC Class Codes: A47L 11/4016 specially adapted for collecting fluids
• CPC Class Codes: A47L 11/4038 Disk shaped surface treating tools
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/4044 Vacuuming or pick-up tools; Squeegees
• CPC Class Codes: A47L 11/4061 Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
• CPC Class Codes: A47L 11/4066 Propulsion of the whole machine
• CPC Class Codes: A47L 11/4083 Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
• CPC Class Codes: A47L 11/4088 Supply pumps; Spraying devices; Supply conduits
• CPC Class Codes: B08B 2203/0217 Use of a detergent in high pressure cleaners; arrangements for supplying the same
• CPC Class Codes: B08B 2203/027 Pump details
• CPC Class Codes: B08B 3/026 Cleaning by making use of hand-held spray guns; Fluid preparations therefor
• CPC Class Codes: B60L 15/2018 : for braking on a slope
• CPC Class Codes: B60L 2200/40 : Working vehicles
• CPC Class Codes: B60L 2240/12 : Speed
• CPC Class Codes: B60L 2270/142 : acoustic
• CPC Class Codes: B60L 2270/145 : Structure borne vibrations
• CPC Class Codes: B60L 3/00 : Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00
• CPC Class Codes: B60L 50/66 : Arrangements of batteries
• CPC Class Codes: B60L 7/24 : with additional mechanical or electromagnetic braking
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility

Abstract

The present invention relates generally to an apparatus for cleaning or otherwise treating a floored surface that includes a platform adapted to support the weight of an operator. In addition, one embodiment of the present invention is capable of generally performing 360E turns to facilitate the treatment of difficult to access portions of the floored surface.

Claims

1. A floor treatment apparatus, comprising:

a chassis having a front, a back, a lower surface, a front surface adjacent the front, an upper surface, a rear surface adjacent the back, a left surface, and a right surface;

a first wheel operably interconnected to the lower surface adjacent to the left surface and located closer to the rear surface than the front surface;

a second wheel operably interconnected to the lower surface adjacent the right surface and located closer to the rear surface than the front surface;

a platform located substantially between at least a portion of the right surface, at least a portion of the left surface, the platform extending rearwardly from a portion of the rear surface, and substantially located within the chassis and positioned substantially directly above an axis extending between the center of the first wheel and the center of the second wheel, wherein the platform includes a top surface adapted to receive the feet of an operator, and wherein the platform includes a throttle and an operator presence device operatively connected to, and which selectively interrupts operation of the throttle;

a powered wheel operably connected adjacent the lower surface of the chassis;

a steering mechanism associated with the chassis and having a portion that is accessible by an operator; and

a floor treating device connected adjacent to the lower surface of the chassis, the floor treating device configured to scrub floors, clean carpets, vacuum floors, wax floors, burnish floors, remove wax from a floor, or remove varnish from a floor, wherein the floor treating device can be quickly changed from one floor treating device to another.

2. The floor treatment apparatus of claim 1, wherein the lower surface is configured to interchangeably receive floor treating devices of different types.

3. The floor treatment apparatus of claim 1, wherein the chassis has a maximum outside envelope of about 51 inches high, 27 inches wide, and 52 inches long.

4. The floor treatment apparatus of claim 1, wherein the platform includes a suspension system.

5. The floor treatment apparatus of claim 1, further comprising a squeegee operably interconnected to the lower surface capable of a first position of use spaced a predetermined distance from a surface being cleaned, and a second position of use wherein the squeegee contacts the surface being cleaned.

6. The floor treatment apparatus of claim 1, wherein the platform includes a platform switch that must be engaged for the throttle to be effective.

7. The floor treatment apparatus of claim 1, further including a means to set a speed range wherein no degree of throttle engagement will cause the floor treatment apparatus to exceed the speed range.

8. The floor treatment apparatus of claim 1, further comprising a braking mechanism.

9. The floor treatment apparatus of claim 1, further including a clean fluid storage compartment in operable communication with a fluid dispensing member.

10. The floor treatment apparatus of claim 1, further including a spare fluid storage compartment in operable communication with a fluid collection system.

11. The floor treatment apparatus of claim 1, further including a fluid storage compartment, a chemical storage compartment and a control mechanism which will selectively mix fluid from the fluid storage compartment with fluid from the chemical storage compartment to form a cleaning fluid.

12. A floor treatment apparatus, comprising:

a chassis having a front, a back, a lower surface, a front surface adjacent the front, a rear surface adjacent the back, a left surface, and a right surface;

a first wheel operably interconnected to the lower surface adjacent to the left surface and located closer to the rear surface than the front surface;

a second wheel operably interconnected to the lower surface adjacent the right surface and located closer to the rear surface than the front surface;

a platform adapted to support an operator'"'"'s weight located substantially between the right surface, the left surface, and extending rearwardly from the rear surface;

at least a third wheel operably interconnected to the lower surface, the platform also substantially located within the chassis and positioned substantially directly above an axis extending between the center of the first wheel and the center of the second wheel;

a steering mechanism, at least partially housed within the chassis, operably interconnected to the third wheel, which is located approximately between the left surface and the right surface, the steering mechanism allowing the chassis to rotate 360 degrees without substantially moving in other directions;

a floor treating mechanism selectively interconnected to the lower surface, the floor treating mechanism configured to scrub floors, clean carpets, vacuum floors, wax floors, burnish floors, remove wax from a floor, or remove varnish from a floor, wherein the floor treating mechanism can be quickly changed from one floor treating mechanism to another; and

a power plant interconnected to at least one of the wheels.

13. The floor treatment apparatus of claim 12, wherein the lower surface is configured to interchangeably receive floor treating mechanisms of different types.

14. The floor treatment apparatus of claim 12, wherein the chassis has a maximum outside envelope of about 50.75 inches high, 26.5 inches wide, and 51.5 inches long.

15. The floor treatment apparatus of claim 12, wherein the floor treating mechanism further comprises a rotatable squeegee capable of a first position of use positioned a predetermined distance from a surface being cleaned, and a second position of use substantially on the surface being cleaned.

16. The floor treatment apparatus of claim 12, wherein the platform includes a throttle, an operator presence switch that interrupts the throttle when not depressed, and a platform switch that must be engaged for the throttle to be effective.

17. The floor treatment apparatus of claim 16, further including a means to set a speed range wherein no degree of throttle engagement will cause the apparatus to exceed the speed range.

18. The floor treatment apparatus of claim 12, further comprising a braking mechanism.

19. A floor treatment apparatus, comprising:

an enclosure that envelopes at least a waste receptacle, the enclosure having a front, a back, a lower surface, a front surface adjacent the front, an upper surface, a rear surface adjacent the back, a left surface, and a right surface;

a first wheel operably interconnected to the lower surface adjacent to the left surface and located closer to the rear surface than the front surface;

a second wheel operably interconnected to the lower surface adjacent the right surface and located closer to the rear surface than the front surface;

a platform located substantially between at least a portion of the right surface, at least a portion of the left surface, and extending from a portion of the rear surface, the platform also substantially located within the enclosure and positioned between the first wheel and the second wheel such that a portion of the platform penetrates a three-dimensional cylindrical volume defined by the outer surface of the first wheel and the second wheel;

a drive mechanism operably connected to the apparatus and being capable of at least one of transitioning and rotating the floor treatment apparatus;

a steering assembly connected to at least one of the enclosure or the platform, operably interconnected to a third wheel, which is located approximately between the left surface and the right surface, that allows the enclosure to rotate 360 degrees without substantially moving in other directions; and

a floor treating mechanism selectively interconnected to the lower surface of the enclosure, the floor treating mechanism configured to scrub floors, clean carpets, vacuum floors, wax floors, burnish floors, remove wax from a floor, or remove varnish from a floor, wherein the floor treating mechanism can be quickly changed from one floor treating mechanism to another, the floor treating mechanism associated with a device for capturing debris or fluid wherein the debris or fluid is generally contained relative to the lower surface of the enclosure when the floor treatment apparatus is turned.

20. The floor treatment apparatus of claim 19, wherein the lower surface is configured to interchangeably receive floor treating mechanisms of different types.

21. The floor treatment apparatus of claim 19, wherein the drive mechanism is an electric motor in communication with at least one of the first wheel, the second wheel, and the third wheel.

22. The floor treatment apparatus of claim 19, wherein the device for capturing debris or fluid directs the debris or fluid to a suction assembly, the device for capturing debris or fluid being rotatably connected to the lower surface of the enclosure wherein fluid or debris is generally contained relative to the lower surface when the floor treatment apparatus is turned.

23. A floor treatment apparatus comprising:

a chassis having a front, a back, a lower surface, a front surface adjacent the front, an upper surface, a rear surface adjacent the back, a left surface, and a right surface;

a first wheel operably interconnected to the lower surface adjacent to the left surface and located closer to the rear surface than the front surface;

a second wheel operably interconnected to the lower surface adjacent the right surface and located closer to the rear surface than the front surface;

a platform located substantially between at least a portion of the right surface, at least a portion of the left surface, and extending rearwardly from a portion of the rear surface, the platform also substantially located within the chassis and positioned between the first wheel and the second wheel such that a portion of the platform penetrates a three-dimensional cylindrical volume defined by the outer surface of the first wheel and the second wheel, and wherein the platform includes a top surface adapted to receive the feet of an operator, a throttle, and an operator presence device operatively connected to and which selectively interrupts operation of the throttle;

a powered wheel operably connected adjacent the lower surface of the chassis;

a steering mechanism substantially housed within the chassis and having a portion accessible by an operator, operably interconnected to the powered wheel located approximately between the left surface and the right surface and allows the chassis to rotate 360 degrees without substantially moving in other directions;

a floor treating device connected adjacent to the lower surface of the chassis, the floor treating device configured to scrub floors, clean carpets, vacuum floors, wax floors, burnish floors, or remove wax from a floor; and

a device for capturing fluid and directing the fluid to a suction assembly, the device for capturing fluid rotatably connected to the lower surface of the chassis wherein fluid or debris is generally contained relative to the lower surface when the floor treatment apparatus is turned.

24. The floor treatment apparatus of claim 23, wherein the lower surface is configured to interchangeably receive floor treating devices of different types.

25. The floor treatment apparatus of claim 23, further including a means to set a speed range wherein no degree of throttle engagement will cause the apparatus to exceed the speed range.

26. The floor treatment apparatus of claim 23, further comprising a braking mechanism.

27. A floor treatment apparatus comprising:

a chassis having a front, a back, a lower surface, a front surface adjacent the front, a rear surface adjacent the back, a left surface, and a right surface;

a first wheel operably interconnected to the lower surface adjacent to the left surface and located closer to the rear surface than the front surface;

a second wheel operably interconnected to the lower surface adjacent the right surface and located closer to the rear surface than the front surface;

a platform located substantially between the right surface, the left surface, and extending rearwardly from a portion of the rear surface, the platform adapted to support the weight of an operator, and includes a throttle and an operator presence device operatively connected to, and which selectively interrupts operation of, the throttle;

at least a third wheel operably interconnected to the lower surface, the platform also substantially located within the chassis and positioned substantially adjacent to an axis extending between the center of the first wheel and the center of the second wheel;

a steering mechanism operably interconnected to the third wheel located approximately between the left surface and the right surface, the steering mechanism allowing the chassis to rotate 360 degrees without substantially moving in other directions;

a floor treating mechanism interconnected to the lower surface, the floor treating mechanism designed to scrub floors, clean carpets, vacuum floors, wax floors, burnish floors, remove wax from a floor, or remove varnish from a floor; and

a power plant interconnected to at least one of the wheels.

28. The floor treatment apparatus of claim 27, wherein the lower surface is configured to interchangeably receive floor treating mechanisms of different types.

29. The floor treatment apparatus of claim 27, further comprising a rotatable squeegee capable of a first position of use a predetermined distance from a surface being cleaned, and a second position of use substantially on the surface being cleaned.

30. The floor treatment apparatus of claim 27, further including a means to set a speed range wherein no degree of throttle engagement will cause the apparatus to exceed the speed range.

31. The floor treatment apparatus of claim 27, further comprising a braking mechanism.