Motorised floor sweeper

• US 20050011028A1
• Filed: 12/30/2003
• Published: 01/20/2005
• Est. Priority Date: 07/18/2003
• Status: Abandoned Application

• Current Assignee: Yasuda Technology Limited
• Original Assignee: Yasuda Technology Limited
• Inventors: Chow, Hung
• Application Number:
  US10/748,929
• Publication Number:
  US 20050011028A1
• Time in Patent Office: Days
• US Class Current: 15/41.100
• CPC Class Codes: A47L 11/24 Floor-sweeping machines, motor-driven
• CPC Class Codes: A47L 11/32 Carpet-sweepers combined with suction cleaners A47L7/02
• CPC Class Codes: A47L 11/4013 Contaminants collecting devices, i.e. hoppers, tanks or the like
• CPC Class Codes: A47L 11/4036 Parts or details of the surface treating tools
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/4058 for adjusting the height of the tool
• CPC Class Codes: A47L 11/4069 Driving or transmission means for the cleaning tools

Abstract

A motorised floor sweeper includes a chassis, a pair of elongate brushes mounted to the chassis in parallel relationship with one another, two electric motors mounted to the chassis and causing counter-rotation of one of the brushes with respect to the other brush, and a dust compartment adjacent to at least one of the brushes for receiving dust swept up by the brush.

Claims

1. A motorised floor sweeper comprising:

a chassis,

a pair of elongate brushes mounted to the chassis in parallel relationship with one another,

an electric motor mounted to the chassis and causing counter-rotation of one of the brushes with respect to the other brush, and

a dust compartment adjacent to at least one of the brushes for receiving dust swept up thereby.

2. The floor sweeper of claim 1 comprising a pair of said electric motors, one of which drives one of the brushes and the other of which drives the other brush.

3. The floor sweeper of the claim 2 wherein the electric motors are positioned between the rollers.

4. The floor sweeper of claim 3 wherein one of the motors is situated adjacent to one end of the brushes and the other motor is situated adjacent to the other end of the brushes.

5. The floor sweeper of claim 4 further comprising a battery compartment in between the brushes.

6. The floor sweeper of claim 4 further comprising a pair of drive belts, one transmitting rotational output of one of the motors to one of the brushes and the other of which transmits rotational output of the other motor to the other brush.

7. The floor sweeper of claim 1 further comprising floor-engaging rollers attached to the chassis and maintaining each brush at a defined spacing above a flat swept surface in use.

8. The floor sweeper of claim 7 wherein the rollers are located inboard of the brushes.

9. The floor sweeper of claim 8 further comprising a pair of buffer strip upon the chassis outboard of the brushes defining a minimum spacing between the brushes and a flat swept surface in use.

10. The floor sweeper of claim 1 comprising a pair of said dust compartments—

one adjacent to each brush and a deflection surface adjacent to each brush and positioned proximate a respective said dust compartment to deflect dust swept up by the brush into that dust compartment.

11. The floor sweeper of claim 10 wherein the deflection surface has an edge strip defining a minimum spacing between the brushes and a flat swept surface in use.

12. The floor sweeper of claim 9 wherein each brush has a plurality of bristles extending radially therefrom and wherein the bristles have tips that reach a flat swept surface if one of the buffer strips engages the flat swept surface in use.

14. The carpet sweeper of claim 1 comprising an attachment for an elongate handle attached to the chassis by a multi-pivot joint.

13. The floor sweeper of claim 13 wherein each brush comprises a radially extending strip extending radially as far as the tips of the bristles.