Textiles: knitting – Independent-needle machines – Straight
Patent
1987-03-25
1987-12-29
Feldbaum, Ronald
Textiles: knitting
Independent-needle machines
Straight
66219, 66232, D04B 700
Patent
active
047151986
ABSTRACT:
A control magnet assembly (10) for a pattern apparatus in knitting machines, for electrically controlled needle selection, has selection magnets (29, 30), which are provided with permanent magnetic retaining pole zones and with control pole zones with which control coils (42, 43; 52, 53) that are triggerable in accordance with the pattern are associated, and against which armature elements (26) operatively connected with the needles (18) can be brought. In a control magnet assembly (10) of this kind, optimal magnetic conditions in the control pole zone are to be provided such that a uniform and reliable throwing off of the appropriate armature elements (26) is always attained. To this end, a measuring head (15, 25) is provided for detecting the magnitude of the magnetic field in the control pole zone, and a circuit layout is provided between the measuring head (15, 25) and the control coil (42, 43, 52, 53).
REFERENCES:
patent: 3974664 (1976-08-01), Erb
patent: 4030319 (1977-06-01), Gloeckler
patent: 4081974 (1978-04-01), Jaffe et al.
patent: 4320635 (1982-03-01), Cucwe et al.
patent: 4414806 (1983-11-01), Schimko
patent: 4660391 (1987-04-01), Schimko
Ploppa Jurgen
Schmid Franz
Feldbaum Ronald
H. Stoll GmbH & Co.
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