Surface cleaning apparatus

• US 7,013,521 B2
• Filed: 04/02/2004
• Issued: 03/21/2006
• Est. Priority Date: 07/20/2001
• Status: Active Grant

• Current Assignee: Grey Technology Limited (Grey Technology Holding Ltd.)
• Original Assignee: Nicholas Gerald Grey
• Inventors: Grey, Nicholas Gerald
• Primary Examiner(s): Till, Terrence R.
• Application Number:
  US10/816,193
• Publication Number:
  US 20040255411A1
• Time in Patent Office: 718 Days
• Field of Search: 15/411, 15/42, 15/43, 15/521, 151/441, 151/442, 153/44, 153/63, 153/64, 153/77, 153/83, 153/85, 154/10, 154/11, 161/101, 164/08, 164/09
• US Class Current: 15/42
• CPC Class Codes: A46B 13/001 Cylindrical or annular brush bodies
• CPC Class Codes: A46B 13/02 power-driven carriers
• CPC Class Codes: A46B 2200/3066 Brush specifically designed for use with street cleaning machinery
• CPC Class Codes: A47L 11/32 Carpet-sweepers combined with suction cleaners A47L7/02
• CPC Class Codes: A47L 11/33 having means for storing dirt
• 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 11/4069 Driving or transmission means for the cleaning tools
• CPC Class Codes: A47L 11/4075 Handles; levers
• CPC Class Codes: A47L 11/4094 Accessories to be used in combination with conventional vacuum-cleaning devices
• CPC Class Codes: A47L 5/30 with driven dust-loosening tools, e.g. rotating brushes
• CPC Class Codes: A47L 7/02 with driven tools for special purposes with floor-polishing tools A47L11/20
• CPC Class Codes: A47L 9/0411 driven by electric motor
• CPC Class Codes: A47L 9/0444 for conveying motion by endless flexible members, e.g. belts
• CPC Class Codes: A47L 9/0483 Reciprocating or oscillating tools, e.g. vibrators, agitators, beaters
• CPC Class Codes: A47L 9/06 with fixed, e.g. adjustably fixed brushes or the like
• CPC Class Codes: A47L 9/066 with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools for suction cleaners with handles and nozzles fixed on the casing A47L5/34
• CPC Class Codes: A47L 9/0666 with tilting, floating or similarly arranged brushes, combs, lips or pads
• CPC Class Codes: A47L 9/32 Handles
• CPC Class Codes: A62C 3/10 in ships A62C3/0207 takes precedence

Abstract

A surface cleaning apparatus comprises a body including a rear compartment, a forward compartment and an intermediate compartment arranged between the rear and forward compartments. An elongate rotatable brush arrangement is positioned within and extends across the forward compartment. An electric motor is positioned in the rear compartment for driving the rotatable brush arrangement and the electric motor.

Claims

1. A surface cleaning apparatus, comprising:

a) a body having a forward compartment and rear compartment;

b) an elongate rotatable brush extending across the forward compartment;

c) an electric motor for driving the rotatable brush ; and

d) a handle movable between an upright position and steering positions by rotation about an axis transverse to the axial direction of the handle, said handle being further rotatable around a second axis in said steering positions said second axis of rotation being offset from the axial direction of the handle,

wherein the body further comprises a collar that prevents rotation of the handle around said second axis in the upright position.

2. The apparatus of claim 1, further comprising an auxiliary brush extending from the forward compartment and driven by the motor.

3. The apparatus of claim 2, wherein the elongate rotatable brush and auxiliary brush are driven by the electric motor.

4. The apparatus of claim 3, wherein the auxiliary brush and the elongate rotatable brush are connected by a gear.

5. The apparatus of claim 1, further comprising an intermediate compartment defined by a wall between the forward compartment and the intermediate compartment, a wall between the intermediate compartment and the rear compartment, and side walls.

6. The apparatus of claim 5, wherein one side wall is removable to facilitate removal of debris.

7. The apparatus of claim 6, wherein the removable side wall includes a cover.

8. The apparatus of claim 5, wherein the intermediate compartment includes a tray that can be removed and emptied so as to discharge debris.

9. The apparatus of claim 5, wherein the intermediate compartment is a removable tray having at least one wall that forms a wall of said body.

10. The apparatus of claim 5, wherein the belt is enclosed within a tunnel that passes through the intermediate compartment.

11. The apparatus of claim 10, wherein one side wall is removable to facilitate removal of debris and the tunnel is arranged at a side remote from the removable side wall.

12. The apparatus of claim 5, wherein the wall between the forward and intermediate compartments is inclined rearwardly.

13. The apparatus of claim 12, wherein the wall between the forward and intermediate compartments has an angle of inclination of from 15 to 20 degrees.

14. The apparatus of claim 5, wherein the wall between the intermediate and rear compartments seals the rear compartment from the intermediate compartment.

15. The apparatus of claim 1, wherein a front part of the forward compartment is movable to expose bristles on the elongate rotatable brush at the front part of the forward compartment.

16. The apparatus of claim 1, wherein the rear compartment is provided with ground-engaging wheels.

17. The apparatus of claim 1, further comprising a cleaning strip assembly pivotably mounted on an underside of the body.

18. The apparatus of claim 17, wherein the cleaning strip assembly comprises an elongate support member and a flexible strip extending radially from the support member.

19. The apparatus of claim 18, wherein the elongate support member extends along substantially the entire length of the body.

20. The apparatus of claim 17, wherein the cleaning strip assembly further comprises at least one tab oriented to contact the surface being cleaned during cleaning.

21. The apparatus of claim 20, wherein the at least one tab is oriented so that contact of the at least one tab with the surface being cleaned is capable of causing the cleaning strip assembly to pivot between a cleaning position and an elevated position.

22. The apparatus of claim 1, wherein the forward compartment further comprises an opening in a lower surface thereof, and wherein a lower front region of the body is chamfered so that bristles of the elongate brush protrude from the body in the region of the chamfer such that, when the apparatus is inclined relative to a surface to be cleaned, contact between the bristles and the surface to be cleaned is increased.

23. A surface cleaning apparatus, comprising:

a) a body having a forward compartment and rear compartment;

b) an elongate rotatable brush extending across the forward compartment;

c) an electric motor for driving the rotatable brush;

d) an intermediate compartment comprising a removable tray, wherein at least one side of the removable tray forms a wall of said body; and

e) a handle movable between an upright position and steering positions by rotation about an axis transverse to the axial direction of the handle, said handle being further rotatable around a second axis in said steering positions said second axis of rotation being offset from the axial direction of the handle, and the body further comprises a collar that prevents rotation of the handle about the axis offset from the axial direction of the handle in an upright position.

24. The apparatus of claim 23, further comprising an auxiliary brush extending from the forward compartment and driven by the electric motor.

25. The apparatus of claim 24, wherein the auxiliary brush and the elongate rotatable brush are connected by a gear.

26. The apparatus of claim 25, wherein one side wall is removable to facilitate removal of debris.

27. The apparatus of claim 23, wherein the removable tray includes a cover.

28. The apparatus of claim 23, wherein the belt is enclosed within a tunnel that passes through the intermediate compartment.

29. The apparatus of claim 28, wherein the tunnel is arranged at a side remote from said side of the removable tray that forms a wall of said body.

30. The apparatus of claim 23, wherein the wall between the forward and intermediate compartments is inclined rearwardly.

31. The apparatus of claim 30, wherein the wall between the forward and intermediate compartments has an angle of inclination of from 15 to 20 degrees.

32. The apparatus of claim 23, wherein the wall between the intermediate and rear compartments seals the rear compartment from the intermediate compartment.

33. The apparatus of claim 23, wherein a front part of the forward compartment is movable to expose bristles on the elongate rotatable brush at the front part of the forward compartment.

34. The apparatus of claim 23, wherein the rear compartment is provided with ground-engaging wheels.

35. The apparatus of claim 23, wherein the forward compartment further comprises an opening in a lower surface thereof, and wherein a lower front region of the body is chamfered so that bristles of the elongate brush protrude from the body in the region of the chamfer such that, when the apparatus is inclined relative to a surface to be cleaned, contact between the bristles and the surface to be cleaned is increased.