Sewing machine

Details Sewing machine Sewing machine

1988-07-12

1990-09-11

Nerbun, Peter

Sewing

Elements

Starting or stopping

112300, D05B 6918, D05B 6922

Patent

active

049553062

ABSTRACT:
In a sewing machine, immediately after every thread trimming, the electric motor is reversely rotated for a predetermined angle, hence reversely rotating the sewing mechanism, so that the needle bar is brought up to its upper dead point when the electric motor is stopped after the thread trimming, and, thereby, there is no fear of spoiling the object cloth by the needle tip. The predetermined angle is controlled by processing an output signal of a speed detector.

REFERENCES:
patent: 4080914 (1978-03-01), Ishida et al.
patent: 4173193 (1979-11-01), Morinaga et al.
patent: 4515098 (1985-05-01), Walther
patent: 4627370 (1986-12-01), Nakamura
patent: 4691653 (1987-09-01), Neki et al.

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