Zigzag sewing machine

Details Zigzag sewing machine Zigzag sewing machine

2007-11-27

2007-11-27

Izaguirre, Ismael (Department: 3765)

Sewing

Stitch forming

Feeding work material

Reexamination Certificate

active

11447081

ABSTRACT:
A zigzag sewing machine including a needle bar having a sewing needle attached thereto, a needle swing mechanism that laterally swings the needle bar, a needle plate disposed on an upper surface of a sewing machine bed, and a feed dog constituted by a first to fourth teeth that feed a workpiece cloth by projecting/retracting from the needle plate. The zigzag sewing machine further includes a feed dog longitudinal transfer mechanism that longitudinally moves the feed dog, a feed dog lateral transfer mechanism that laterally moves the feed dog, and a control unit that controls the feed dog lateral transfer mechanism so that one of the teeth is associated with a needle drop point of the sewing needle.

REFERENCES:
patent: 3026832 (1962-03-01), Taketomi
patent: 4226199 (1980-10-01), Adams
patent: 4691654 (1987-09-01), Meier
patent: 4958580 (1990-09-01), Asaba et al.
patent: 5063867 (1991-11-01), Horie
patent: 5195442 (1993-03-01), Meier
patent: U 54-135263 (1979-09-01), None

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