Surface cleaning machine and method for operating a surface cleaning machine

Patent metadata

Field	Value
Publication number	US-10881258-B2
Application number	US-201715486004-A
Country	US
Kind code	B2
Filing date	Apr 12, 2017
Priority date	Oct 13, 2014
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

A surface-cleaning machine is provided, including an appliance body on which a suction apparatus device is arranged, a cleaning head on which at least one cleaning roller is arranged and on which there is positioned at least one suction mouth, which is fluidically connected to the suction apparatus device and is associated with the at least one cleaning roller, and a drive device for driving the at least one cleaning roller in rotation, wherein a drive axis of a drive motor of the drive device and an axis of rotation of the at least one cleaning roller are oriented transversely and in particular perpendicularly with respect to one another.

First claim

The invention claimed is:

1. A surface-cleaning machine, comprising:
an appliance body on which a suction apparatus device is arranged;
a cleaning head on which at least one cleaning roller is arranged and on which there is positioned at least one suction mouth, which is fluidically connected to the suction apparatus device and is associated with the at least one cleaning roller; and
a drive device for driving the at least one cleaning roller in rotation;
wherein a drive axis of a drive motor of the drive device and an axis of rotation of the at least one cleaning roller are oriented transversely with respect to one another; and
wherein, during a cleaning operation, the surface-cleaning machine is supported on a surface for cleaning only by way of the at least one cleaning roller.

2. The surface-cleaning machine as claimed in claim 1 , wherein the drive device comprises a transmission device for the transmission of torque to the at least one cleaning roller.

3. The surface-cleaning machine as claimed in claim 2 , wherein the transmission device comprises a rotational speed reducer.

4. The surface-cleaning machine as claimed in claim 3 , wherein the rotational speed reducer is or comprises a planetary gearing.

5. The surface-cleaning machine as claimed in claim 1 , wherein the rotational speed reducer is arranged at the drive motor.

6. The surface-cleaning machine as claimed in claim 1 , wherein the transmission device comprises an angular gearing.

7. The surface-cleaning machine as claimed in claim 6 , wherein the angular gearing is or comprises a bevel-wheel gearing.

8. The surface-cleaning machine as claimed in claim 1 , wherein the transmission device comprises a belt which drives a drive element on which the at least one cleaning roller is seated.

9. The surface-cleaning machine as claimed in claim 1 , wherein the cleaning head is seated by means of a joint, so as to be pivotable about a pivot axis, on the appliance body.

10. The surface-cleaning machine as claimed in claim 9 , wherein the pivot axis is oriented transversely with respect to a longitudinal axis of the appliance body, and in particular is oriented at an acute angle with respect to the longitudinal axis.

11. The surface-cleaning machine as claimed in claim 9 , wherein the drive motor of the drive device is positioned at least partially on the joint.

12. The surface-cleaning machine as claimed in claim 11 , wherein a drive axis of the drive motor lies at least approximately parallel or coaxially with respect to the pivot axis.

13. The surface-cleaning machine as claimed in claim 11 , wherein the cleaning head is mounted so as to be rotatable about the drive motor.

14. The surface-cleaning machine as claimed in claim 9 , wherein the joint has an inner sleeve, in which the drive motor is at least partially positioned, and an outer sleeve, which is seated on the inner sleeve and which is mounted pivotably thereon.

15. The surface-cleaning machine as claimed in claim 14 , wherein the outer sleeve is fixed either to the appliance body or to the cleaning head, and wherein the inner sleeve is correspondingly fixed either to the cleaning head or to the appliance body.

16. The surface-cleaning machine as claimed in claim 1 , wherein the cleaning head has a first face side and an oppositely situated second face side, wherein, in a central region between the first face side and the second face side, there is arranged a drive element which is connected in terms of torque transmission to the drive device.

17. The surface-cleaning machine as claimed in claim 16 , wherein the at least one cleaning roller is of two-part form with a first part, which is seated on the drive element and is directed toward the first face side, and with a second part, which is seated on the drive element and is directed toward the second face side.

18. The surface-cleaning machine as claimed in claim 1 , comprising a wetting device for moistening the at least one cleaning roller with cleaning liquid.

19. The surface-cleaning machine as claimed in claim 18 , wherein a reservoir device for cleaning liquid is arranged on the appliance body.

20. The surface-cleaning machine as claimed in claim 1 , wherein at least one of a receiving device for dirt and a reservoir device for dirty liquid is arranged on the appliance body.

21. The surface-cleaning machine as claimed in claim 1 , wherein a separation device which is associated with the suction apparatus device is arranged on the appliance body.

22. The surface-cleaning machine as claimed in claim 1 , wherein the at least one cleaning roller is driven at a circumferential speed in the range between 0.9 m/s (inclusive) and 1.2 m/s (inclusive).

23. The surface-cleaning machine as claimed in claim 22 , wherein the at least one cleaning roller is driven at a circumferential speed in the range between 0.95 m/s (inclusive) and 1.05 m/s (inclusive).

Assignees

• Kaercher Gmbh & Co Kg Alfred
• Kaercher Alfred Se & Co Kg

Inventors

• Moser Fabian
• Schulze Manuel
• Rufenach Christoph
• Buchmann Johanna
• Mueller Andreas
• Frisch Mathias
• Braendle Alexander

Classifications

• A47L9/0411 Primary

  driven by electric motor · CPC title

• A47L11/202

  having separate drive for the cleaning brushes · CPC title

• A47L11/4041

  Roll shaped surface treating tools · CPC title

• A47L11/40 Primary

  Parts or details of machines not {provided for in} groups A47L11/02 - A47L11/38, {or not restricted to one of these groups}, e.g. handles, arrangements of switches, skirts, buffers, levers · CPC title

• A47L11/302 Primary

  having rotary tools · CPC title