Sewing machine controlling apparatus

Details Sewing machine controlling apparatus Sewing machine controlling apparatus

1985-03-08

1986-07-29

Nerbun, Peter

Sewing

Elements

Starting or stopping

D05B 6918

Patent

active

046025812

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. The sewing machine speed, as 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: 4473020 (1984-09-01), Neki et al.
patent: 4490656 (1984-12-01), Arnold

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