Workpiece clamping unit driving mechanism for sewing machine
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United States of America Patent
Stats
-
Nov 23, 1999
Grant Date -
N/A
app pub date -
Jun 24, 1998
filing date -
Sep 18, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sewing machine is provided with a workpiece clamping unit which clamps and carries a workpiece along the surface of the bed during stitching operation, and a workpiece clamping unit driving mechanism comprising a driving means and a motion converting means. The driving means comprises first and second drive shafts, first and second driving sources for driving the first and the second drive shaft, and first and second compound plate cams fixedly mounted respectively on the first and the second drive shafts. The motion converting means converts the angular motions of the first and the second drive shaft into motions parallel to the upper surface of the bed (6) of the sewing machine.
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Family
International Classification(s)
Cited Art Landscape
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