Gas carrying threading device of sewing machine
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United States of America Patent
Stats
-
Mar 22, 2016
Grant Date -
Jul 10, 2014
app pub date -
Nov 10, 2011
filing date -
Sep 20, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A gas carrying threading device includes a clutch for transmitting power from a sewing machine motor to a drive shaft that drives a stitch forming device at the time of stitch formation or to a gas supply pump at the time of looper threading, a looper threading/stitch forming changeover mechanism for changing over the clutch so that transmission of power to the stitch forming device is interrupted and the power is transmitted to the gas supply pump at the time of the looper threading and the power is transmitted to the stitch forming device and the transmission of the power to the gas supply pump is interrupted at the time of stitch formation, and a changeover prohibition mechanism for prohibiting abnormal changeover to a stitch forming state of the looper threading/stitch forming changeover mechanism during the gas supply operation of the gas supply pump.
First Claim
Family
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Cited Art Landscape
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