| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to set a short seam-in length of a hollow loop by setting a rotating speed of a sewing machine at a relatively slow speed when a hollow loop is sewn in a seam of an edge of a sewing start of a cloth to be sewn, wherein the hollow loop generated at the time of an end of sewing is sewn in a seam of an edge of a sewing start of a next cloth to be sewn. SOLUTION: When a pedal is on, a rotating speed at a rotating start of a sewing machine is made slower than a rotating speed of plain seam, and a cloth B to be sewn is run unit a hem (e) of a sewing start reaches a needle location part 2 of a needle plate 1. At this time, a hollow ring A wound around a claw part 3 for a seam forming part 3 of the needle plate 1 remains as it is. Next, the hem (e) of the sewing start reaches near a tip of the claw part 3, and reaches a position wherein a length between the hem (e) of the sewing start and a scalpel 4 for cloth hem cutting is a specified length, in this case, rotation of the sewing machine is stopped for a while. An air suction tube A of a hollow loop holding device 18 is moved from a second position to a third position, the hollow loop A is drawn to a front side and stitched in a seam of an edge of a sewing start of a cloth B to be sewn.
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