Piezoelectric needle selection device for knitting machines
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United States of America Patent
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-
Oct 20, 1998
Grant Date -
N/A
app pub date -
Feb 24, 1997
filing date -
Mar 19, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A knitting machine and needle selection mechanism is provided including a piezoelectric body movable between upper, lower and neutral positions corresponding to knit, tuck and welt positions of the knitting needles, a first driving circuit for displacing the piezoelectric body upwardly, a second driving circuit for displacing the piezoelectric body downardly, a third driving circuit for displacing the piezoelectric body to the neutral position, and a control device for controlling the driving circuits in accordance with a pre-set program.
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