Robotic lawnmower

• US 20040187457A1
• Filed: 04/22/2004
• Published: 09/30/2004
• Est. Priority Date: 05/28/2001
• Status: Abandoned Application

• Current Assignee: Andre Colens
• Original Assignee: Andre Colens
• Inventors: Colens, Andre
• Application Number:
  US10/479,378
• Publication Number:
  US 20040187457A1
• Time in Patent Office: Days
• US Class Current: 56/1
• CPC Class Codes: A01D 2101/00 Lawn-mowers
• CPC Class Codes: A01D 34/008 for automated or remotely controlled operation
• CPC Class Codes: A01D 43/02 with rakes
• CPC Class Codes: A63B 47/021 for picking-up automatically, e.g. by apparatus moving over the playing surface

Abstract

The invention relates to a robotic machine which can move on a lawn, said machine being equipped with a device consisting of a series of elements (4,5). The ends of said elements are capable of touching and rectifying and/or cutting the flat blades of grass of the lawn. The machine will generally be a robotic lawnmower equipped with said device. The elements (4,5) will be advantageously flexible and arranged in tandem under the chassis of the machine. Said elements can be helicoidal springs (5). One end of said spring is fixed to the chassis using a strut, and the other end is rectified in the spring axis. The invention can further relate to articulated elements which cut in the direction of movement of the machine.

Claims

1. Robotic machine intended to move on a lawn characterized by its being equipped with a series of elements the extremities of which are suitable for straightening blades of grass flattened in the lawn.

2. Robotic machine according of claim 1 characterized in that the machine is a robotic lawnmower.

3. Robotic machine according to claim 2 characterized in that it is equipped with a series of elements which extremities are adapted to brush and straighten, simultaneously at a mowing operation, the grass blades flattened on the lawn.

4. Robotic device according to claim 1 wherein the elements are flexible elements.

5. Robotic device according to claim 1 wherein the elements are arranged in a line under a chassis of the machine.

6. Robotic device according to claim 1 wherein the elements are made of steel wires mounted vertically.

7. Robotic device according to claim 1 wherein the elements are helicoidal springs one end of which is attached t the chassis by a strut and the other end of which is rectified along the spring axis.

8. Robotic device according to claim 1 in which the elements are non-cutting elements.

9. Robotic device according to claim 1 in which the elements are cutting elements.

10. Robotic device according to claim 9 wherein the element are cutting in the direction of displacement.

11. Robotic device according to claim 1 the elements are in the form of thin sharp plates articulated in a plane essentially parallel to the direction of displacement of the machine.

12. Robotic lawnmower according to claim 2 wherein the flexible or articulated elements being located behind the cutting head and/or heads with regard to the direction of displacement.

13. Machine according to claim 1 which is intended for the automatic collection of objects.

14. Machine according to claim 1 which is intended for the automatic collection of golf balls.