Hard and soft floor cleaning tool and machine

• US 8,028,365 B2
• Filed: 03/08/2006
• Issued: 10/04/2011
• Est. Priority Date: 09/02/2003
• Status: Active Grant

• Current Assignee: Tennant Company
• Original Assignee: Tennant Company
• Inventors: Field, Bruce F.
• Primary Examiner(s): CHIN, RANDALL E
• Application Number:
  US11/371,111
• Publication Number:
  US 20060150352A1
• Time in Patent Office: 2,036 Days
• Field of Search: 15/98, 152/301.4, 152/301.6, 15/973
• US Class Current: 15/98
• CPC Class Codes: A47L 11/18 the tools being roll brushes
• CPC Class Codes: A47L 11/282 having rotary tools
• CPC Class Codes: A47L 11/4013 Contaminants collecting devices, i.e. hoppers, tanks or the like
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/405 Machines using UV-lamps, IR-lamps, ultrasound or plasma cleaning
• CPC Class Codes: A47L 11/4088 Supply pumps; Spraying devices; Supply conduits

Abstract

A cleaning tool generally comprises a hub having a longitudinal axis and a plurality of cleaning members. The cleaning members, formed of a fibrous material, are connected to the hub. In accordance with one embodiment, the cleaning members are distributed along the longitudinal axis. Also disclosed is a floor cleaning machine that includes a mobile body, the cleaning tool and a motor. The mobile body supports the cleaning tool and the motor and is configured to travel over a surface. The motor is configured to drive a rotation of the cleaning hub about the longitudinal axis.

Claims

1. A floor cleaning machine comprising:

a mobile body configured for travel over a surface;

a cleaning tool supported on the mobile body configured to scrub the surface, the cleaning tool comprising;

a hub having a longitudinal axis; and

a plurality of cleaning members connected to the hub and distributed along the longitudinal axis, the cleaning members comprising a fibrous material;

a waste container supported on the mobile body and positioned on a rear side of the cleaning tool that is opposite a front side of the cleaning tool;

a housing having a bottom opening through which a portion of the cleaning tool extends, a surround portion substantially conforming to a top side of the cleaning tool, and an opening to the waste container, wherein the cleaning tool is configured to directly release collected debris into the waste container through the opening to the waste container; and

a motor supported on the mobile body configured to drive rotation of the hub and the cleaning members about the longitudinal axis such that distal ends of the cleaning members engaging the surface move in a forward direction, which points from the rear side to the front side;

wherein debris, driven from the surface responsive to the rotation of the hub, travels between the hub and the surround portion and is flung in a rearward direction, which is opposite the forward direction, through the opening into the waste container.

2. The machine of claim 1, wherein the hub extends through the cleaning members.

3. The machine of claim 2, wherein the cleaning members are disk-shaped and an outer edge portion of the cleaning members comprises the fibrous material and is configured to flex in response to contact with a surface.

4. The machine of claim 1, further comprising a cleaning liquid dispenser supported on the mobile body and configured to discharge a cleaning liquid onto one of the cleaning tool and the surface.

5. The machine of claim 4, wherein the cleaning liquid dispenser comprises a pump and a supply of cleaning liquid.

6. The machine of claim 1, further comprising a handle extending from the mobile body in a rearward direction, which points from the front side toward the rear side, wherein the motor is configured to drive the rotation of the hub such that distal ends of the cleaning members engaging the surface move in a forward direction, which is opposite the rearward direction.

7. The machine of claim 1, wherein the mobile body does not support a vacuumized waste collection system.

8. The machine of claim 1, wherein a gap between the surround portion of the housing and the top side of the cleaning members is less than 0.3 inches.

9. A floor cleaning machine comprising:

a mobile body configured for travel over a surface;

a cleaning tool supported on the mobile body configured to scrub the surface, the cleaning tool comprising;

a hub having a longitudinal axis; and

a plurality of cleaning members connected to the hub;

a cleaning liquid dispenser supported on the mobile body and configured to discharge a cleaning liquid onto one of the cleaning tool and the surface;

a waste container supported on the mobile body and positioned on a rear side of the cleaning tool that is opposite a front side of the cleaning tool;

an operating handle attached to the mobile body on the rear side of the cleaning tool;

a housing having a bottom opening through which a portion of the cleaning tool extends, a surround portion substantially conforming to a top side of the cleaning tool, and an opening to the waste container; and

a motor supported on the mobile body drives rotation of the hub and the cleaning members about the longitudinal axis such that distal ends of the cleaning members engaging the surface move in a forward direction, which points from the rear side to the front side;

wherein;

debris, driven from the surface responsive to the rotation of the hub, travels between the hub and the surround portion and is flung in a rearward direction, which is opposite the forward direction, through the opening into the waste container; and

the mobile body does not support a vacuumized waste collection system.

10. The machine of claim 9, wherein the cleaning members are disk-shaped.

11. The machine of claim 10, wherein the cleaning members are comprise microfiber.

12. The machine of claim 9, wherein the cleaning liquid dispenser comprises a pump and a supply of cleaning liquid.