Sewing machine having a thread tension adjusting device

Details Sewing machine having a thread tension adjusting device Sewing machine having a thread tension adjusting device

2005-01-18

2005-01-18

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Tensioning

Reexamination Certificate

active

06843189

ABSTRACT:
A sewing machine includes a thread tension adjusting device, and a thread tension releasing device. The thread tension adjusting device includes a thread press member formed with a release extension portion. The thread tension releasing device presses the release extension portion of the thread press member to pivot the thread press member so as to move the thread clamping portion of the thread press member. Thus, the thread tension releasing device directly presses the release extension portion of the thread press member, so as to release the tension of the sewing thread, so that the tension of the sewing thread can be released easily and rapidly.

REFERENCES:
patent: 3500781 (1970-03-01), Peschke
patent: 4356781 (1982-11-01), Rodda
patent: 4520743 (1985-06-01), Zylbert
patent: 6050205 (2000-04-01), Terao
patent: 6089172 (2000-07-01), Takenoya et al.

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