Sewing machine controlling apparatus

Details Sewing machine controlling apparatus Sewing machine controlling apparatus

1983-03-29

1985-12-03

Nerbun, Peter

Sewing

Elements

Starting or stopping

318318, 318341, 318345E, D05B 6918, H02P 504

Patent

active

045560013

ABSTRACT:
A sewing machine controlling apparatus which starts and stops a sewing machine or controls its speed in accordance with the position of an adjusting means, e.g. control pedal, for setting a sewing machine speed, as speed. The sewing machine controlled by the controlling apparatus is independent of the influences caused by changes in the pedal position signal P.sub.A through the vibrations of the machine or through the variations in a power-supply voltage. A smooth speed switching operation, which is free from speed variations, can be realized even at a stepped switching point of the machine speed control pedal.

REFERENCES:
patent: 4377778 (1983-03-01), Neki et al.
patent: 4386301 (1983-05-01), Neki et al.
patent: 4473020 (1984-09-01), Neki et al.

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