Seam, seam forming device, and seam forming method
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United States of America Patent
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May 21, 2013
Grant Date -
Aug 26, 2010
app pub date -
Nov 6, 2008
filing date -
Nov 14, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
To provide a seam of attractive appearance in which tightening force is increased and raveling are prevented drastically. A seam (1) is formed by two needles (11, 12) juxtaposed in the direction at substantially right angles to the sewing direction (T), and consists of a chain seam (10) formed by a needle thread (12) passed through one needle (11), and a lock seam (20) formed by a needle thread (22) passed through the other needle (21). The loop (13) of a needle thread forming the chain seam (10) is passed through the loop (23) of a needle thread forming the lock seam (20) before tightening of stitch is performed, and a loop of the needle thread forming the chain seam located on a downstream side in the sewing direction is passed through the loop of the needle thread forming the upstream chain seam.
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