Workpiece detector for a sewing machine
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United States of America Patent
Stats
-
Jul 18, 1989
Grant Date -
N/A
app pub date -
May 26, 1987
filing date -
May 26, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A workpiece detector for a sewing machine including a rotatable detecting lever in which small angular displacements at the end of the detecting lever, caused by differences in workpiece thickness, are multiplied mechanically causing the rotation of an electrical converter. Detectable output signals are generated such that overlapping of workpieces or the end of a workpiece may be detected during stitching. The length of the detecting lever is adjustable such that the detecting point may be varied.
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Family
International Classification(s)
Cited Art Landscape
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