Zigzag sewing machine

Details Zigzag sewing machine Zigzag sewing machine

2011-06-21

2011-06-21

Izaguirre, Ismael (Department: 3765)

Sewing

Stitch forming

Zigzag

C112S157000, C112S449000

Reexamination Certificate

active

07963239

ABSTRACT:
A zigzag sewing machine is provided. The zigzag sewing machine includes a stitching motor which moves a needle, a feeding motor which moves a feed dog to feed a cloth, a needle swinging motor which swings the needle, a multistage-operating portion operable to adjust at least one of a feed amount of the cloth and a swing amount of the needle in a minimum adjustable unit, and a control section which controls the stitching motor, the feeding motor and the needle swinging motor to carry out a zigzag sewing in accordance with the at least one of the feed amount and the swing amount adjusted by the multistage-operating portion. The control section is configured to selectively assign a first value and a second to the minimum adjustable unit depending on whether the stitching motor is in operation or not.

REFERENCES:
patent: 4284016 (1981-08-01), Matumura
patent: 4441439 (1984-04-01), Hanyu et al.
patent: 4572095 (1986-02-01), Makabe et al.
patent: 4966090 (1990-10-01), Tanaka et al.
patent: 4986201 (1991-01-01), Hyodo et al.
patent: 5566632 (1996-10-01), Nishizawa et al.
patent: 10-118363 (1998-05-01), None
patent: 10-146480 (1998-06-01), None
patent: 2004-329379 (2004-11-01), None

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