Sewing machine feed mechanism

Abstract

A sewing machine feed mechanism is mounted on a work table of a sewing machine for transporting fabrics to be sewn, and includes a feed belt defining an encircled space; two belt wheels, on which two opposite ends of the feed belt are mounted; a driving source for driving the two belt wheels and the feed belt to rotate synchronously; a plurality of pressing elements located in the encircled space with respective bottom in contact with the feed belt; and an airbag located atop the pressing elements and connected to an external control device to have adjustable internal pressure. With these arrangements, the sewing machine feed mechanism has simplified structure to allow easy mounting/dismounting and reduced manufacturing cost thereof. Further, fabrics placed between the work table and the feed belt can be evenly pressed while being transported into a stitch forming area of the sewing machine for sewing.

Dependencies are inferred from the claim text.