Sewing machine
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United States of America Patent
Stats
-
Aug 2, 2005
Grant Date -
Feb 24, 2005
app pub date -
Dec 19, 2003
filing date -
Dec 28, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sewing machine with a hook (8) that is drivable in rotation about a vertical axis comprises a bobbin case (21) with a lifter cam (31). A case lifter (33) is provided, having a sensing lever (40) and a lifter lever (32) that bears against a lifter cam (28). The sensing lever rests on a cam face (42) of an axial cam disk (39) which is mounted on the transmission shaft that actuates a hook-driving shaft (10).
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Family
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Cited Art Landscape
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