Eyelet-end buttonhole sewing machine wherein tacking data for bar tack are generated based on operator-specified characteristics of the bar tack
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United States of America Patent
Stats
-
May 19, 1998
Grant Date -
N/A
app pub date -
Nov 12, 1996
filing date -
Nov 15, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A buttonhole sewing machine including stitching instrumentalities for forming zigzag stitches defining an eyelet-end buttonhole having an eyelet end portion at one end of a foot portion, by operations of a driving mechanism for operating needle and looper device of the stitching instrumentalities, a feeding mechanism for feeding work fabric feeding table along X and Y axes, and a rotating mechanism for rotating needle bar and looper base about an axis perpendicular to the X and Y axes, according to primary stitching data, and wherein a data input device is provided for operation by an operator to specify at least one characteristic of a bar tack portion to be formed at the other end of the foot portion of the eyelet-end buttonhole, and a data generating device is provided for generating tacking data as secondary stitching data on the basis of the specified characteristic or characteristics, to stitch the bar tack portion.
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