Thread cutting device for a sewing machine of chain sewing

Details Thread cutting device for a sewing machine of chain sewing Thread cutting device for a sewing machine of chain sewing

1997-11-12

1999-02-16

Izaguirre, Ismael

Sewing

Elements

Thread cutting, severing or breaking

112298, D05B 6500

Patent

active

058709622

ABSTRACT:
A thread cutting device for a sewing machine of chain sewing includes a fixing plate, a combine plate on the fixing plate, a slide guider movably combined with the combine plate by a swing arm located between the fixing plate and the combine plate. A main knife is fixed on a front end of combine plate, and a movable knife is fixed on the slide guider to be moved moved back and forth by the slide guider so that the movable knife may hook and retract threads for the main knife to cut off when the swing arm is swung by an air pressure cylinder having its piston rod connected with an second end of the swing arm, while a first end of the swing arm is connected with the slide guider.

REFERENCES:
patent: 4098209 (1978-07-01), Schopf
patent: 4726305 (1988-02-01), Seto
patent: 5416119 (1995-05-01), Ikeda
patent: 5469798 (1995-11-01), Gauch
patent: 5481994 (1996-01-01), Ku

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