Patent attributes
A self-aligning interface (6300) is attached to a robotic carton unloader (6100) and provides an interface between an extendable conveyor (6200) and the robotic carton unloader (6100). The self-aligning interface (6300) can include a positional measurement device (6320, 6320b, 6320c) mounted on the robotic carton unloader (6100) and operatively engaged with the extendable conveyor (6200) to provide positional information about the location of the extendable nose conveyor (6220) relative to the positional measurement device (6320, 6320b, 6320c). A control unit (6180) is attached to the robotic carton unloader (6100) for full robotic control of robotic carton unloader (6100) and the unloading process. The control unit (6180) is connected to the positional measurement device (6320, 6320b, 6320c) and the extendable conveyor (6200). The control unit (6180) uses positional information to calculate and control extension and retraction movements of the extendable conveyor (6200) in unison with the forward and reverse movements of the robotic carton unloader 6100 to ensure unloaded cartons (12) exiting the moving truck unloader are received on the extendable conveyor (6200).
