Floor surfacing machine

Patent metadata

Field	Value
Publication number	US-11759077-B2
Application number	US-202016908868-A
Country	US
Kind code	B2
Filing date	Jun 23, 2020
Priority date	Sep 25, 2014
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

The present invention relates to a floor surfacing machine ( 1 ) comprising a frame ( 2 ) that is carried by a first wheel ( 3 ) and a second wheel ( 4 ). The floor surfacing machine ( 1 ) further comprises a first motor ( 6 ), a handle arrangement ( 7 ), at least one planetary head ( 15 ) that is rotatably mounted to the frame ( 2 ) and at least one satellite surfacing head ( 19, 20, 21 ) that is rotatably mounted to the planetary head ( 15 ), where the first motor ( 6 ) is arranged to propel the planetary head ( 15 ). The floor surfacing machine ( 1 ) comprises a first control unit ( 10 ), and a remote control panel ( 11 ) which in turn comprises a second control unit ( 12 ) that is arranged to communicate with the first control unit ( 10 ). The floor surfacing machine ( 1 ) also comprises a second motor ( 22 ) that is arranged to propel the satellite surfacing heads ( 19, 20, 21 ) such that the planetary head ( 15 ) and the satellite surfacing heads ( 19, 20, 21 ) are independently operable.

First claim

What is claimed is:

1. A floor surfacing machine comprising:
a frame carried by a first wheel and a second wheel, the first wheel configured to be driven by a first wheel drive motor and the second wheel configured to be driven by a second wheel drive motor;
a handle arrangement carried by the frame;
a planetary head rotatably mounted to the frame and configured to be driven by a first motor carried by the frame;
at least one satellite surfacing head configured to treat a floor surface, the at least one satellite surfacing head being mounted on the planetary head and configured to be driven by a second motor carried by the frame; and
a controller configured to provide an oscillation control signal to the first wheel drive motor and the second wheel drive motor to vary a speed of the first wheel relative to the second wheel to cause lateral oscillation of the planetary head;
wherein each of the planetary head, the at least one satellite surfacing head, the first wheel, and the second wheel are independently controllable.

2. The floor surfacing machine of claim 1 , wherein the planetary head is configured to be laterally displaced between a first position and a second position in an oscillating manner.

3. The floor surfacing machine of claim 1 , wherein the first wheel and the second wheel are controlled to operate relative to each other to cause oscillating movement of the planetary head.

4. The floor surfacing machine of claim 1 wherein the controller is further configured to:
detect an uneven surface having a higher portion of the surface and a lower portion of the surface; and
control the first wheel drive motor and the second wheel drive motor to cause oscillation of the planetary head such that the planetary head operates on the higher portion of the surface more than the lower portion of the surface.

5. The floor surfacing machine of claim 1 wherein at least one of the at least one satellite surfacing head and the planetary head are configured to be driven in a mutually opposing direction of rotation or in a same direction of rotation.

6. The floor surfacing machine of claim 1 wherein at least one of the at least one satellite surfacing head is rotatable at varying speeds relative to a speed of the planetary head.

7. A floor surfacing machine comprising:
a frame carried by a first wheel and a second wheel, the first wheel configured to be driven by a first wheel drive motor and the second wheel configured to be driven by a second wheel drive motor;
a planetary head rotatably mounted to the frame and configured to be driven by a planetary head motor carried by the frame;
a satellite surfacing head configured to treat a floor surface, the satellite surfacing head being mounted on the planetary head and configured to be driven by a satellite surfacing head motor carried by the frame; and
a controller configured to control the first wheel drive motor and the second wheel drive motor to cause the first wheel and the second wheel to rotate differently,
wherein the controller is configured to control the first wheel drive motor and the second wheel drive motor to cause the planetary head to oscillate laterally across the floor surface by causing the first wheel and the second wheel to rotate differently;
wherein the controller is further configured to provide an oscillation control signal to the first wheel drive motor and the second wheel drive motor to vary a speed of the first wheel relative to the second wheel to cause the lateral oscillation of the planetary head.

8. The floor surfacing machine of claim 7 wherein the satellite surfacing head motor drives the satellite surfacing head independently from the planetary head motor driving the planetary head.

9. The floor surfacing machine of claim 7 wherein the satellite surfacing head and the planetary head are configured to be driven in a mutually opposing direction of rotation or in a same direction of rotation.

10. The floor surfacing machine of claim 7 wherein at least one of the at least one satellite surfacing head is rotatable at varying speeds relative to a speed of the planetary head.

11. A floor surfacing machine comprising:
a frame carried by a first wheel and a second wheel, the first wheel configured to be driven by a first wheel drive motor and the second wheel configured to be driven by a second wheel drive motor;
a planetary head rotatably mounted to the frame and configured to be driven by a planetary head motor carried by the frame;
a satellite surfacing head configured to treat a floor surface, the satellite surfacing head being mounted on the planetary head and configured to be driven by a satellite surfacing head motor carried by the frame; and
a controller configured to control the first wheel drive motor and the second wheel drive motor to cause the first wheel and the second wheel to rotate differently;
wherein the controller is configured to control the first wheel drive motor and the second wheel drive motor to cause the planetary head to oscillate laterally across the floor surface by causing the first wheel and the second wheel to rotate differently; and
wherein the controller is further configured to:
detect an uneven surface having a higher portion of the surface and a lower portion of the surface; and
control the first wheel drive motor and the second wheel drive motor to cause oscillation of the planetary head such that the planetary head operates on the higher portion of the surface more than the lower portion of the surface.

12. A floor surfacing system comprising:
a floor surfacing machine comprising:
a frame carried by a first wheel and a second wheel, the first wheel configured to be driven by a first wheel drive motor and the second wheel configured to be driven by a second wheel drive motor; and
a planetary head rotatably mounted to the frame and configured to be driven by a first motor carried by the frame to interact with a floor surface; and

a remote control configured to wirelessly communicate with the floor surfacing machine via radio signals, the remote control being further configured to control the first wheel drive motor and the second wheel drive motor to cause the first wheel and the second wheel to rotate differently to cause the planetary head to oscillate laterally across the floor surface;
wherein the remote control is further configured to provide an oscillation control signal to the first wheel drive motor and the second wheel drive motor to vary a speed of the first wheel relative to the second wheel to cause lateral oscillation of the planetary head.

13. The floor surfacing system of claim 12 , wherein the floor surfacing machine further comprises a satellite surfacing head mounted on the planetary head and configured to be driven by a satellite surfacing head motor carried by the frame.

14. The floor surfacing system of claim 13 , wherein the remote control is configured to control operation of the planetary head motor and the satellite surfacing head motor to drive the satellite surfacing head independently from the planetary head.

15. The floor surfacing system of claim 13 , wherein remote control is configured to control operation of the planetary head motor and the satellite surfacing head motor to cause the satellite surfacing head and the planetary head to be driven in a mutually opposing direction of rotation or in a same direction of rotation.

16. The floor surfacing system of claim 13 , wherein remote control is configured to control operation of the planetary head motor and the satellite surfacing head motor to rotate the satellite surfacing head

Assignees

• Husqvarna Ab

Inventors

• Berg Johan
• Rosén Magnus
• Freidlitz Lars
• Madbro Pär
• Leff-Hallstein Joakim

Classifications

• A47L11/14 Primary

  with rotating tools · CPC title

• B24B7/18 Primary

  for grinding floorings, walls, ceilings or the like (machines or devices for cleaning floorings A47L11/00, A47L13/00) · CPC title

• A47L11/4069

  Driving or transmission means for the cleaning tools · CPC title

• B24B7/186

  with disc-type tools · CPC title

• A47L11/40

  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