Sewing machine needle positioning

Details Sewing machine needle positioning Sewing machine needle positioning

1981-06-08

1982-09-28

Nerbun, Peter P.

Sewing

Work manipulating

Guides

112275, D05B 302, D05B 6922

Patent

active

043512542

ABSTRACT:
In an electronically controlled sewing machine having an arm shaft position sensor signalling release of feed data and of needle position data at opposite extremes of endwise reciprocation of a needle bar, depression of a needle up or needle down position button will implement a slow speed drive circuit, and a fast stop brake circuit will stop the needle bar immediately upon the occurrence of a signal from the arm shaft position sensor corresponding to the selected needle position button.

REFERENCES:
patent: 4150634 (1979-04-01), Brown et al.
patent: 4173193 (1979-11-01), Morinaga et al.
patent: 4262614 (1981-04-01), Sugaya et al.

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