Patent ID: 11969883
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. A handling method for a box for gripping and moving a stacked box having an open top surface, with a handling apparatus attached to a robot arm, the handling method comprising:
robotically identifying a box to be moved wherein the box is on an uppermost stage of a plurality of stacked boxes, wherein the box has a flange projecting outwardly at least partially around an outer surface of the box;
robotically moving the handling apparatus to above the box;
inserting a wedge member having an edge and a flat plate shape along the outer surface of the box;
rotating a claw disposed in the wedge member in a direction approaching the box, to be engaged with a lower surface of the flange of the box;
on a side of the box not next to another one of the plurality of stacked boxes, driving a first fall prevention hanger on a lower side of the box to cause the handling apparatus to grip the box;
robotically lifting the box vertically upward; and
after robotically lifting the box, on a side of the box next to another one of the plurality stacked boxes, driving a second fall prevention hanger on a lower side of the box to cause the handling apparatus to grip the box.