Thread break detector for a sewing machine

Details Thread break detector for a sewing machine Thread break detector for a sewing machine

1987-06-22

1988-07-05

Nerbun, Peter

Sewing

Elements

Thread sensing

250561, D05B 6936

Patent

active

047547227

ABSTRACT:
A thread break detector for a thread in a sewing machine comprising, a sensor device having a signal path cross section for scanning, a first thread guide disposed on one side of the sensor device, and a second thread guide disposed on the other side of the sensor device and being movable in synchronism with the stitch formation of the sewing machine, such that the second thread guide deflects the thread in the region of the sensor device a greater amount than the cross section of the sensor device signal path.

REFERENCES:
patent: 4284020 (1981-08-01), Conner, Jr. et al.
patent: 4426948 (1984-01-01), Olasz et al.
patent: 4691647 (1987-09-01), Von Stein

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