Pattern sewing machine provided with a control unit for thread d

Details Pattern sewing machine provided with a control unit for thread d Pattern sewing machine provided with a control unit for thread d

1991-09-05

1992-04-21

Nerbun, Peter

Sewing

Elements

Thread guiding or handling

11212111, 112291, 112300, 112453, D05B 6300, D05B 6500

Patent

active

051057506

ABSTRACT:
A pattern sewing machine provided with a thread trimmer and a thread delivery unit. After a series of patterns is completed and the thread trimmer trims thread, the thread delivery unit is prohibited from delivering thread until the next sewing operation starts to form another pattern. When the patterns are distant from each other, a needle bar is disconnected and fabric is fed a distance in a non sewing operation. No excess thread is delivered corresponding to the feeding distance of the fabric, thus preventing thread from being wasted. Furthermore, an operator can avoid the cutting of excess thread with scissors. The sewing efficiency is thus enhanced. In the pattern sewing machine the crossover thread connecting the patterns is automatically cut regardless of the distance between the patterns.

REFERENCES:
patent: 3658021 (1972-04-01), Hedegaard et al.
patent: 4776293 (1988-10-01), Yoshida
patent: 4843986 (1989-07-01), Kozuka et al.
patent: 4967679 (1990-11-01), Hara et al.
patent: 5022335 (1991-06-01), Hanyu et al.

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