Control mechanism in a sewing machine for pattern and buttonhole

Details Control mechanism in a sewing machine for pattern and buttonhole Control mechanism in a sewing machine for pattern and buttonhole

1984-09-04

1985-11-19

Nerbun, Peter

Sewing

Stitch forming

Zigzag

D05B 302, D05B 304

Patent

active

045534918

ABSTRACT:
A cam selecting drum which is loosely supported in punched out holes in the frame of a sewing machine is spring biased into stabilized indexed positions to prevent variable stitch formation, and an idler gear which is also loosely supported on said frame for engagement with a gear on said drum as well as a gear on a mode selecting dial is spring biased to provide a loose meshing relationship with the gear on the drum whereby a feeling of placement of the dial becomes evident in indexed positions of the drum.

REFERENCES:
patent: 3635179 (1972-01-01), Ueltschi
patent: 4019450 (1977-04-01), Adams
patent: 4184440 (1980-01-01), Matsumoto
patent: 4380204 (1983-04-01), Hanyu et al.
patent: 4428311 (1984-01-01), Sano

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