Robotic work tool

• US 10,440,879 B2
• Filed: 04/25/2014
• Issued: 10/15/2019
• Est. Priority Date: 04/25/2014
• Status: Active Grant

• Current Assignee: Husqvarna AB (HUSQVARNA)
• Original Assignee: Husqvarna AB (HUSQVARNA)
• Inventors: Bjorn, Jonathan, Elonsson, Martin
• Primary Examiner(s): Fleming, Faye M
• Application Number:
  US15/306,319
• Publication Number:
  US 20170042085A1
• Time in Patent Office: 1,999 Days
• CPC Class Codes: A01D 34/008 for automated or remotely controlled operation
• CPC Class Codes: A01D 34/64 mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle A01D34/695 takes precedence
• CPC Class Codes: A01D 34/78 electric
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2200/40 Working vehicles
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2260/32 Auto pilot mode
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 50/52 characterised by DC-motors
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 8/003 Converting light into electric energy, e.g. by using photo-voltaic systems
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A robotic work tool system (200) comprising a robotic work tool (100), said robotic work tool (100) comprising a chassis (140B) and a body (140A) and at least one support pillar (310) arranged on one of the chassis (140B) and the body (140A) and a corresponding support surface (320) arranged on the other of the chassis (140B) and the body (140A), wherein the support pillar substantially bridges a distance between the chassis (140B) and the body (140A) thereby impairing any roll or tilt of the body (140A) relative the chassis (140B).

Claims

1. A robotic work tool system comprising a robotic work tool, wherein said robotic work tool is a robotic lawnmower, and wherein said robotic work tool comprises:

a chassis;

a body; and

at least one support pillar arranged on one of the chassis or the body and a corresponding support surface arranged on the other of the chassis or the body,

wherein said at least one support pillar substantially bridges a distance between the chassis and the body thereby impairing any roll or tilt of the body relative to the chassis, and wherein said at least one support pillar is not attached to said support surface.

2. The robotic work tool system according to claim 1, wherein said at least one support pillar is arranged at a side of a fixation point.

3. The robotic work tool system according to claim 1, wherein said at least one support pillar is arranged at a corner of said robotic work tool.

4. The robotic work tool system according to claim 1, wherein said at least one support pillar is arranged to extend substantially across said distance, but leave a gap between the at least one support pillar and the corresponding support surface.

5. The robotic work tool system according to claim 1, wherein said at least one support pillar extends vertically from said one of the chassis and the body toward said other of the chassis and the body.

6. A robotic work tool system comprising a robotic work tool, the robotic work tool comprising:

a chassis;

a body; and

a support pillar arranged on one of the chassis or the body and a corresponding support surface arranged on the other of the chassis or the body,

wherein the support pillar substantially bridges a distance between the chassis and the body thereby impairing any roll or tilt of the body relative to the chassis, and

wherein the support pillar extends vertically from the one of the chassis or the body toward the other of the chassis or the body.

7. The robotic work tool system according to claim 6, wherein the support pillar is not attached to the corresponding support surface.

8. The robotic work tool system according to claim 6, wherein the robotic work tool is a robotic lawnmower.

9. The robotic work tool system according to claim 6, wherein the support pillar is arranged at a side of a fixation point.

10. The robotic work tool system according to claim 6, wherein the support pillar is arranged at a corner of the robotic work tool.

11. The robotic work tool system according to claim 6, wherein the support pillar is arranged to extend substantially across the distance, but leave a gap between the support pillar and the corresponding support surface.

12. A robotic work tool system comprising a robotic work tool, the robotic work tool comprising:

a chassis;

a body; and

a support pillar arranged on one of the chassis or the body and a corresponding support surface arranged on the other of the chassis or the body,

wherein the support pillar substantially bridges a distance between the chassis and the body thereby impairing any roll or tilt of the body relative to the chassis, and

wherein a gap is defined between the support pillar and the corresponding support surface.

13. The robotic work tool system according to claim 12, wherein the support pillar is arranged at a side of a fixation point.

14. The robotic work tool system according to claim 12, wherein the support pillar is arranged at a corner of the robotic work tool.

15. The robotic work tool system according to claim 12, wherein the support pillar is arranged to extend substantially across the distance.

16. The robotic work tool system according to claim 12, wherein the robotic work tool is a robotic lawnmower.

17. The robotic work tool system according to claim 12, wherein the support pillar extends vertically from the one of the chassis or the body toward the other of the chassis or the body.