Sewing machine control apparatus

Details Sewing machine control apparatus Sewing machine control apparatus

D - Textiles, Paper

05

B

341/93

D05B 69/18 (2006.01) G05D 13/62 (2006.01) H02P 29/00 (2006.01)

Patent

CA 1200877

- 1 - Abstract: A sewing machine control apparatus starts or stops a sewing machine or controls its speed in accordance with the position of an adjusting device, e.g. a pedal, for setting such speed. The machine speed is independent of changes in the pedal position caused by vibrations of the machine or variations in the power supply voltage. A smooth speed switching operation free from speed variation can be achieved even when stepping between different speeds.

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