Piezoelectric needle selection device for knitting machines

Details Piezoelectric needle selection device for knitting machines Piezoelectric needle selection device for knitting machines

1997-02-24

1998-10-20

Crowder, C. D.

Textiles: knitting

Independent-needle machines

Circular

66205, D04B 1578

Patent

active

058230157

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.

REFERENCES:
patent: 4481793 (1984-11-01), Cuche et al.
patent: 4604877 (1986-08-01), Sawazaki et al.
patent: 5027619 (1991-07-01), Saito
patent: 5042274 (1991-08-01), Maruyama et al.
patent: 5390512 (1995-02-01), Mista
patent: 5426455 (1995-06-01), Williamson et al.
patent: 5462097 (1995-10-01), Skalka
patent: 5666999 (1997-09-01), Dewispelanre et al.

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