Hemstitching method of sewing machine
AssigneeJanome Sewing Machine Co., Ltd.
InventorSusumu Hanyu
Life of this patent
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Abstract
A method of producing hemstitches by means of a zigzag stitching presser foot comprises the steps of forming two fixing stitches at one point adjacent an edge of the fabric with feeding of the fabric in one direction while reciprocating the needle a small distance laterally, two stitches laterally spaced apart from each other and from the fixing stitches and formed with feeding the fabric in the one direction without lateral movement of the needle, and two crossing stitches interconnecting the fixing stitches with the lateral stitch remote from the one point and being formed with feeding the fabric in the opposite direction.
Claims3
A method of hem-stitching a fabric by a zigzag sewing machine having means for vertically and laterally reciprocating a needle cooperating with upper and lower threads, and means for feeding the fabric in two opposite directions to form lock-stitches with said threads, said method comprising the periodical steps of:
- producing a fixing first stitch at one point adjacent to an edge of the fabric, with feeding the fabric in one direction while laterally moving the needle a short distance away from said one point;
- producing a second stitch with feeding the fabric in the opposite direction while laterally moving the needle a larger distance away from said one point;
- producing a third stitch with feeding the fabric in the one direction without lateral movement of the needle;
- producing a fourth stitch with feeding the fabric in the opposite direction while laterally moving the needle about the larger distance towards said one point;
- producing a fixing fifth stitch with feeding the fabric in the one direction while laterally returning the needle about said short distance into said one point;
- and
- producing a sixth stitch with feeding the fabric in the one direction without lateral movement of the needle to a subsequent point adjacent to the edge of the fabric.
Dependencies are inferred from the claim text.