Feed generating device for sewing machine
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United States of America Patent
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-
Dec 9, 2008
Grant Date -
May 4, 2006
app pub date -
Oct 27, 2005
filing date -
Oct 28, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A feed generating device for a sewing machine capable of selectively sewing one of a plurality of utility patterns and a plurality of super patterns including a single super feed cam generating a cloth feed for sewing the super pattern, a single or a plurality of feed contacts capable of contacting the super feed cam and a switching mechanism that moves the feed contact to a plurality of contact locations having different swing phases with respect to the super feed cam. The cloth feed for sewing the super pattern is a combination of a forward feed and a backward feed and by moving the feed contact to either one of a plurality of contact locations by the switching mechanism, cloth feed including different patterns of combination of the forward feed and the backward feed are generated.
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