Fabric feed amount adjusting device of sewing machine

Details Fabric feed amount adjusting device of sewing machine Fabric feed amount adjusting device of sewing machine

1981-12-07

1984-08-07

Nerbun, Peter

Sewing

Work manipulating

Guides

D05B 302

Patent

active

044636946

ABSTRACT:
In a sewing machine which has both functions, such as ordinary pattern stitching, such as zigzag stitching, and a super pattern stitching to which forward and backward feeds are automatically given, an arrangement is provided which adjusts by a single member the amount of feed at selecting an ordinary pattern stitching and a super pattern stitching. The arrangement provides that the feed amount specified to a pattern, which is given from a feed cam fixed on an operating shaft of a pattern selecting dial, is increased or decreased within a determined range by operating a feed adjusting knob outside of a machine frame. For selecting the super pattern, the amount of the forward and backward feed given by an automatic feed cam is enlarged or reduced back or forth the stitching within a determined range by operating the same feed adjusting knob.

REFERENCES:
patent: 4196682 (1980-04-01), Hanyu et al.
patent: 4368681 (1983-01-01), Hanyu et al.

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