What is a ‘Walking foot’ on an industrial sewing machine?

The video demonstrates the action of a ‘walking foot’ associated with many industrial sewing machines. The walking foot takes steps by lifting the center part of the presser foot and alternating it with pushing the outer parts of the presser foot. The walking foot presser foot is useful when the goal is to sew heavy fabrics that requires more force to pull in under a presser foot. #juki #industrial #sewingmachine #sewing