Position sensing device for electronic sewing machine

Details Position sensing device for electronic sewing machine Position sensing device for electronic sewing machine

1978-09-21

1980-07-29

Nerbun, Peter P.

Sewing

Work manipulating

Guides

318653, D05B 302

Patent

active

042145392

ABSTRACT:
A sewing machine, wherein a stitch controlling instrumentality is positioned during operation of the machine by a motor acting through connecting linkages, is provided with a ring magnet that is connected to said linkages for angular displacement thereby about its axis and with a linear output Hall effect sensor that is disposed within the ring magnet to produce an output voltage proportional to displacement of the stitch forming instrumentality.

REFERENCES:
patent: 3976019 (1976-08-01), Allen et al.
patent: 3984745 (1976-10-01), Minalga
patent: 3988658 (1976-10-01), Meinke et al.

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