Method and sewing machine for forming single-thread locked handstitches
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United States of America Patent
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Feb 22, 2011
Grant Date -
Jan 8, 2009
app pub date -
Jan 31, 2007
filing date -
Feb 3, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A sewing thread (20) can be captured certainly with a thread capturing open eye (13a) of an open eye needle (13) and the stitches are formed in the inner space of a sewing machine bed (3). A handstitch and a locked stitch are formed, respectively, on the front surface and the back surface of a fabric workpiece (21) as a skip stitch set through cooperation of the open eye needle (13), a shuttle hook (200) and a thread draw out actuator (401). A feed dog (601) feeds the fabric workpiece by a stitch length (P1) for handstitch during a first stroke of the open eye needle (13), and feeds the fabric workpiece by an inter-stitch pitch (P2) between the handstitches during a second stroke of the open eye needle (13).
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