Sewing machine with feed dog dropping control system

Details Sewing machine with feed dog dropping control system Sewing machine with feed dog dropping control system

1979-01-26

1980-12-02

Nerbun, Peter P.

Sewing

Work manipulating

Guides

112314, D05B 302, D05B 2700

Patent

active

042364698

ABSTRACT:
A sewing machine including stitch forming device, electrically driven means for driving the needle and the feed dog, a static memory to control the electrically driven means and a pattern selecting arrangement. The electrically driven means comprise a pulse motor for controlling a horizontal feeding amount of the feed dog and a clutch solenoid operatively connected to a shaft of the pulse motor. The device is provided with a feed control arrangement having an operating member to actuate the position of the feed dog. The clutch solenoid is operatively connected to the operating member and is energized in response to a stitch signal from the static memory to define the position of the feed dog in accordance with a selected pattern.

REFERENCES:
patent: 2682242 (1954-06-01), Palme et al.
patent: 4131075 (1978-12-01), Wurst
patent: 4159004 (1979-06-01), Ross

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