Automated guided trolley for the transport and/or handling of a load
An automated guided trolley for transporting and/or handling a load. The trolley has a main frame for receiving the load and a supporting frame having two walking beams extending respectively towards the front and the rear of the trolley. The walking beams are mounted rotatably with respect to the main frame respectively about a first axis and a second axis and such a walking beam includes elements for securing one arm of one walking beam to one arm of the other walking beam and for supporting the first of these arms on the other arm.
1. An automated guided trolley for transporting and/or handling a load, the automated guided trolley comprising:
a main frame for receiving said load; and
a supporting frame comprising a first walking beam and a second walking beam extending respectively forward and backward of said trolley or vice versa,
said first and second walking beams being pivotally mounted with respect to the main frame respectively about a first axis and a second axis,
said first walking beam having a first arm extending from said first axis towards an outside of said trolley, equipped with at least one idler wheel, and a second arm extending from said first axis towards an inside of said trolley, mounted on two differential drive wheels,
said second walking beam having a first arm extending from said second axis towards the outside of said trolley, equipped with at least one further idler wheel and a second arm extending from said second axis towards the inside of said trolley,
and a connection securing the second arm of said second walking beam to the second arm of said first walking beam, the connection comprising a support supporting said second arm of said second walking beam on the second arm of said first walking beam.
2. The automated guided trolley according to claim 1 , wherein said support comprises a pin extending substantially perpendicular to the second arm of said second walking beam, or vice versa to the second arm of said first walking beam, said pin at least partially penetrating into a hole formed in said second arm of said first walking beam, or vice versa in said second arm of said second walking beam, wider than said pin.
3. The automated guided trolley according to claim 2 , wherein said hole is substantially oblong in shape and extends substantially in the longitudinal direction of the second arm in which it is formed.
4. The automated guided trolley according to claim 2 , wherein said pin comprises a roller intended to rest on the edges of said hole.
5. The automated guided trolley according to claim 1 , wherein said support is housed substantially vertically on the axis of the differential drive wheels.
6. The automated guided trolley according to claim 5 , wherein said support is housed under the axis of said two differential drive wheels.
7. The automated guided trolley according to claim 1 , wherein the trolley further comprises at least one stop mounted on said main frame opposite one of said walking beams, arranged to limit articulation of the supporting frame with respect to the main frame.
8. The automated guided trolley according to claim 1 , wherein said two differential drive wheels are driven in rotation by two independently controlled motors, fixed to the same walking beams as the differential drive wheels.
9. The automated guided trolley according to claim 1 , wherein at least one of said walking beams is equipped with two idler wheels mounted thereon in positions symmetrical with respect to a sagittal plane of said trolley.
10. The automated guided trolley according to claim 1 , wherein a position of said first axis and a position of said second axis are symmetrical with respect to a median plane of said trolley.