Floor care appliance with a plurality of cleaning modes

• US 9,271,619 B2
• Filed: 04/07/2009
• Issued: 03/01/2016
• Est. Priority Date: 11/17/2004
• Status: Active Grant

• Current Assignee: Techtronic Floor Care Technology Limited (Techtronic Industries Company Limited)
• Original Assignee: Techtronic Floor Care Technology Limited (Techtronic Industries Company Limited)
• Inventors: Gordon, Evan A., Louis, Jeffery S., Scheifele, Kevin E., Morgan, Jeffery A., Burchfield, Brent L.
• Primary Examiner(s): Muller, Bryan R
• Application Number:
  US12/419,829
• Publication Number:
  US 20090320233A1
• Time in Patent Office: 2,520 Days
• Field of Search: 153/55, 153/56, 153/61, 153/62, 153/68, 153/72, 153/73, 153/53
• US Class Current: 1/1
• 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 11/4011 Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
• CPC Class Codes: A47L 5/225 Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners
• CPC Class Codes: A47L 5/30 with driven dust-loosening tools, e.g. rotating brushes
• CPC Class Codes: A47L 5/32 with means for connecting a hose hose couplings for suction cleaners A47L9/24
• CPC Class Codes: A47L 5/34 with height adjustment of nozzles or dust-loosening tools
• CPC Class Codes: A47L 9/0027 specially adapted for holding the suction cleaning tools
• CPC Class Codes: A47L 9/0494 Height adjustment of dust-loosening tools
• CPC Class Codes: A47L 9/0653 with mechanical actuation, e.g. using a lever
• CPC Class Codes: A47L 9/2842 Suction motors or blowers
• CPC Class Codes: A47L 9/2847 Surface treating elements
• CPC Class Codes: A47L 9/2857 User input or output elements for control, e.g. buttons, switches or displays

Abstract

A floor care appliance is provided for cleaning bare surfaces such as tile, marble, linoleum and wood. The floor care appliance is comprised of a base portion having a suction nozzle and a brush block having a plurality of vertical axis rotary agitators for cleaning bare floors. The rotary agitators are driven by an independent motor for agitating the floor surface. With the addition of an accessory hose and tools, the cleaning utility can be expanded to areas wherein the suction nozzle cannot normally reach such as behind the toilet, shower walls, and the grout between tile. While used in the capacity for cleaning bare floors, the floor care appliance can be moved between three modes by a rotating a member located on the upper housing. The first mode is dry mode, the second mode is wet scrub mode and the third mode is wet pickup mode. The accessory tools are stored in an accessory caddy that is placed freestanding over the suction nozzle and in front of the housing.

Claims

1. A floor cleaning appliance for cleaning a surface, the floor cleaning appliance comprising:

a base;

a nozzle coupled to the base;

a suction source in fluid communication with the nozzle;

a brush assembly coupled to the base;

a lifting assembly coupled to the brush assembly and the nozzle for moving the brush assembly and the nozzle relative to the surface, the brush assembly movable between a brush raised position and a brush lowered position and the nozzle movable between a nozzle raised position and a nozzle lowered position; and

a single mode selector coupled to the lifting assembly for selectively moving the brush assembly between the brush raised position and the brush lowered position and for moving the nozzle between the nozzle raised position and the nozzle lowered position, the single mode selector selectively energizing the brush assembly.

2. The floor cleaning appliance of claim 1, wherein the lifting assembly is operatively connected to the brush assembly and the nozzle for moving the brush assembly and the nozzle through various positions including a first position wherein the brush assembly is in the brush raised position and the nozzle is in the nozzle raised position, a second position wherein the brush assembly is in the brush raised position and the nozzle is in the nozzle lowered position, and to a third position wherein the brush assembly is in the brush lowered position and the nozzle is in the nozzle lowered position.

3. The floor cleaning appliance of claim 1, wherein the mode selector includes a switch.

4. The floor cleaning appliance of claim 3, wherein the brush assembly includes a drive motor in communication with the switch to selectively turn the drive motor on and off.

5. The floor cleaning appliance of claim 1, wherein the mode selector includes a selector cable in communication with the lifting assembly.

6. The floor cleaning appliance of claim 5, wherein the mode selector further includes a switch;

and

wherein the brush assembly includes a drive motor in communication with the switch to selectively turn the drive motor on and off.

7. The floor cleaning appliance of claim 5, wherein the mode selector is movable between:

a first position wherein the brush assembly is raised above the surface, the nozzle is raised above the surface, and the drive motor is off,

a second position wherein the brush assembly is raised above the surface, the nozzle is lowered, and the drive motor is off, and

a third position wherein the brush assembly is lowered, the nozzle is lowered, and the drive motor is on.

8. The floor cleaning appliance of claim 1, wherein the mode selector is a rotary dial.

9. The floor cleaning appliance of claim 1, wherein the nozzle further includes a suction inlet and a squeegee ringing the periphery of the suction inlet.

10. The floor cleaning appliance of claim 1, further comprising an upper housing and the mode selector is mounted on said upper housing.

11. The floor cleaning appliance of claim 10, further comprising a handle portion pivotal relative to the upper housing.

12. The floor cleaning appliance of claim 1, wherein the upper housing is pivotal relative to the base.

13. The floor cleaning appliance of claim 1, wherein the lifting assembly moves the brush assembly relative to the nozzle.

14. A floor cleaning appliance for cleaning a surface, the floor cleaning appliance comprising:

a base;

a wheel carriage movable relative to the base

a nozzle coupled to the base;

a suction source in fluid communication with the nozzle;

a brush assembly coupled to the base;

a lifting assembly coupled to the brush assembly and the nozzle for moving the brush assembly and the nozzle relative to the surface, and moving the brush assembly relative to the nozzle, the lifting assembly includes a control cable, a brush cam coupled between the base and the brush assembly for moving the brush assembly between a brush raised position and a brush lowered position, and a nozzle cam coupled between the base and the wheel carriage for moving the wheel carriage such that the nozzle is moved between a nozzle raised position and a nozzle lowered position; and

a single mode selector coupled to the control cable for actuating the lifting assembly for selectively moving the brush assembly between the brush raised position and the brush lowered position and for moving the nozzle between the nozzle raised position and the nozzle lowered position, the single mode selector selectively energizing the brush assembly.

15. The floor cleaning appliance of claim 14, wherein the lifting assembly further includes a brush crank arm, the brush cam coupled to the brush crank arm.

16. The floor cleaning appliance of claim 15, wherein the lifting assembly further includes a nozzle crank arm, the nozzle cam coupled to the nozzle crank arm.

17. The floor cleaning appliance of claim 16,

wherein the control cable is coupled to the lifting assembly to actuate the brush crank arm and the nozzle crank arm.

18. The floor cleaning appliance of claim 17, wherein the brush crank arm and the nozzle crank arm are coupled together with a linkage.

19. The floor cleaning appliance of claim 17, wherein the brush crank arm and the nozzle crank arm are pivotally coupled to the base.