Robotic lawnmower

Patent metadata

Field	Value
Publication number	US-9241441-B2
Application number	US-201214380508-A
Country	US
Kind code	B2
Filing date	Feb 22, 2012
Priority date	Feb 22, 2012
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

A robotic lawnmower 1 is provided, having a deactivated state, a stand by state and an activated state. A removable disabling device 3 is arranged to be positioned in a first, a second, and a third position in a retainer 5 of the robotic lawnmower 1 . The first position constitutes an off position in which the robotic lawnmower 1 is in a deactivated state. The second position constitutes a stand by position in which the robotic lawnmower 1 is in a stand by state. The third position constitutes an on position in which the robotic lawnmower 1 is in an activated state. The present invention also relates to a disabling device 3 arranged to be positioned in a retainer 5 of a robotic lawnmower 1 according to the invention.

First claim

The invention claimed is:

1. A robotic lawnmower comprising:
a retainer; and
a removable disabling device is arranged to be positioned in a first, a second, and a third position in the retainer,
wherein the first position of the removable disabling device in the retainer constitutes an off position in which the robotic lawnmower is in, a deactivated state, the second position of the removable disabling device in the retainer constitutes a stand by position in which the robotic lawnmower is in a stand by state, and the third position of the removable disabling device in the retainer constitutes an on position in which the robotic lawnmower is in an activated state.

2. The robotic lawnmower according to claim 1 , wherein the robotic lawnmower comprises a processing unit, and wherein the processing unit is connected to at least one sensor device configured to sense a position of the disabling device.

3. The robotic lawnmower according to claim 2 , wherein the disabling device is equipped with at least one magnet, and wherein the at least one sensor device is a sensor device configured to sense a magnetic field.

4. The robotic lawnmower according to claim 2 , wherein the processing unit is configured to gather operation data of the robotic lawnmower in the activated state.

5. The robotic lawnmower according to claim 4 , wherein the processing unit is configured to save the operation data in the stand by state.

6. The robotic lawnmower according to claim 4 , wherein the processing unit is configured to provide at least a part of the operation data to a user of the robotic lawnmower, via an interface, in the stand by state.

7. The robotic lawnmower according to claim 1 , wherein the robotic lawnmower comprises an electric motor and a working tool, and wherein the electric motor is configured to drive the working tool in the activated state.

8. The robotic lawnmower according to claim 7 , wherein the robotic lawnmower is configured to stop the driving of the working tool in the stand by state.

9. The robotic lawnmower according to claim 1 , wherein the retainer is configured to lock the disabling device to the robotic lawnmower in the second and third positions of the removable disabling device in the retainer.

10. The robotic lawnmower according to claim 1 , wherein the disabling device is removable from the robotic lawnmower in the first position of the removable disabling device in the retainer.

11. The robotic lawnmower according to claim 1 , wherein the disabling device is biased by a spring in a direction from the third position and the second position towards the first position of the removable disabling device in the retainer.

12. The robotic lawnmower according to claim 1 , wherein the robotic lawnmower comprises a button, and wherein the button is linked to the retainer such that, in the third position of the removable disabling device in the retainer, the disabling device is displaced from the third position of the removable disabling device in the retainer to the second position of the removable disabling device in the retainer when the button is pressed or touched.

13. The robotic lawnmower according to claim 12 , wherein the button is linked to the retainer such that, in the second position of the removable disabling device in the retainer, the disabling device is displaced from the second position of the removable disabling device in the retainer to the first position of the removable disabling device in the retainer when the button is pressed or touched.

14. The robotic lawnmower according to claim 13 , wherein the disabling device comprises a first shoulder and a second shoulder and the retainer comprises a first retaining arm arranged to be in an abutment with the first shoulder when the disabling device is in the third position of the removable disabling device in the retainer, and wherein the first retaining arm is arranged to be in an abutment with the second shoulder when the disabling device is in the second position of the removable disabling device in the retainer.

15. The robotic lawnmower according to claim 14 , wherein the first retaining arm is connected to the button, and wherein the button is hinged around a pivot axis and arranged to pivot between a locking position and a releasing position, and wherein the first retaining arm is arranged to be in the abutment with the first or second shoulder in the locking position, and wherein the abutment is released when the button is displaced from the locking position to the releasing position.

16. The robotic lawnmower according to claim 15 , wherein the disabling device comprises a third shoulder and the retainer comprises a second retaining arm connected to the button, and wherein an abutment between the second retaining arm and the third shoulder prevents the disabling device from being displaced directly from the third position of the removable disabling device in the retainer to the first position when the button is in the releasing position of the removable disabling device in the retainer.

Assignees

• Björn Jonathan
• Jägenstedt Patrik
• Husqvarna Ab

Inventors

• Björn Jonathan
• Jägenstedt Patrik

Classifications

• H03K17/97

  using a magnetic movable element · CPC title

• H01H36/0066

  magnet being removable, e.g. part of key pencil · CPC title

• H01H36/00

  Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding · CPC title

• H01H27/00

  Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings (combined with plug-and-socket connectors H01R13/70; with current-carrying plug H01R31/08) · CPC title

• A01D34/008 Primary

  for automated or remotely controlled operation · CPC title