Thread cutting device on a sewing machine
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United States of America Patent
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May 19, 1992
Grant Date -
N/A
app pub date -
May 31, 1990
filing date -
Jun 6, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thread cutting arrangement for sewing machines including an arrangement in which the tension of the thread is released in both directions of movement of an axially moveable drive mechanism such that the thread tensioning mechanism is opened when the needle thread is caught. The movement of the drive mechanism is transmitted via a one-way coupling so that the opening of the thread tensioning mechanism is limited to the duration of the after pawal of the needle thread.
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Family
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