US 12,227,218 B1
Cart lift robotic transport
David Clarke, Lafayette, CO (US); Danny Sekich, Berthoud, CO (US); Michael Bolotski, Seattle, WA (US); Phillip Walkemeyer, Westminster, CO (US); and Wesley Caruso, Louisville, CO (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Mar. 28, 2022, as Appl. No. 17/705,817.
Int. Cl. B66F 9/06 (2006.01); B62B 5/00 (2006.01); B66F 9/065 (2006.01); B66F 9/075 (2006.01); B66F 9/18 (2006.01); B66F 9/24 (2006.01)
CPC B62B 5/0079 (2013.01) [B66F 9/063 (2013.01); B66F 9/065 (2013.01); B66F 9/0755 (2013.01); B66F 9/18 (2013.01); B66F 9/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A robotic cart transport system, comprising:
a cart for transport of items; and
a robotic transport comprising a transport cab and a load handler extending from one side from the transport cab, wherein:
the transport cab comprises a drive system and a sensor array positioned over the transport cab; and
the load handler comprises:
a load base supported by a directable caster wheel;
bumper rails that extend along sides of the load base;
a lift table positioned over the load base;
a lift guide linkage pivotally secured between the load base and the lift table, the lift guide linkage maintaining a range of motion for the lift table to lift the cart;
a lift abutment anchor secured to a top surface of the load base; and
a lift drive configured to raise the lift table from a lower position on the top surface of the load base to a lifted position seated against the lift abutment anchor.