Patent ID: 9631308
Date: 2017-04-25
CPC Classifications: D05B

Claim:
1. A sewing machine for hem, comprising: a turn-back device arranged in front of a needle location position on a sewing machine bed, the turn-back device turning back an edge part of cloth into a state of being folded one above the other, and then feeding the turned-back cloth to the needle location position; a feed belt arranged in front of the turn-back device and moving in right and left directions below a cloth feeding path; a cloth presser foot opposing the feed belt with the cloth feeding path in between; a drive section raising or lowering the cloth presser foot between a holding position where the cloth presser foot is lowered so as to hold the cloth in cooperation with the feed belt and a non-holding position where the cloth presser foot is raised so as to be away from the feed belt; a detector arranged in front of an opposing portion of the feed belt and the cloth presser foot, and detecting passage of an edge of cloth; and a control section causing the drive section to operate so as to raise or lower the cloth presser foot between the holding position and the non-holding position, on the basis of detection by the detector.