Sewing machine with improved shuttle drive control

Details Sewing machine with improved shuttle drive control Sewing machine with improved shuttle drive control

1998-02-23

2000-11-07

Nerbun, Peter

Sewing

Special machines

Pattern controlled or programmed

112155, 112220, 112278, 1121025, 36447009, D05B 1912, D05B 5730, D05B 6918

Patent

active

061420891

ABSTRACT:
A sewing machine includes a sewing machine motor, a main shaft driven by the sewing machine motor, a sewing needle driven by the main shaft, a shuttle for capturing a thread loop in cooperation with the sewing needle, the shuttle having a hook shaft, a shuttle driving motor for driving the hook shaft of the shuttle independent of the sewing machine motor, a drive control device for controlling the sewing machine motor and shuttle driving motor so that the shuttle is rotated in synchronism with the main shaft, a thread jamming detecting device for detecting a thread jamming in the shuttle, and a releasing device for controlling the shuttle driving motor so that the shuttle is released from the thread jamming, when the thread jamming is detected by the thread jamming detecting device.

REFERENCES:
patent: 5718183 (1998-02-01), Shimizu et al.
patent: 5832851 (1998-11-01), Kato
patent: 5860377 (1999-01-01), Akahane et al.

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