Regulating device for handling a needle thread in a multi-needle double chain stitch sewing machine
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United States of America Patent
Stats
-
May 4, 2004
Grant Date -
Feb 6, 2003
app pub date -
Jul 31, 2002
filing date -
Aug 2, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thread taking-up tool is attached to a needle bar sticking out of a sewing machine head, and its leading end has a plurality of thread holes. The thread holes of the thread taking-up tool are arranged in the lateral direction. A thread handling body has a cam face in the vertical direction. Needle threads from a tension device to needles are controlled by the vertical motion of the thread taking-up tool and the action of the cam face of the thread handling body. When the needles ascend from the lowest position, an endless hook attached to the thread taking-up tool is engaged with the left needle thread between the cam face lower end and the thread hole of the thread taking-up tool. Each thread is handled in with the left needle thread staying at the cam face lower end, so that the needle thread loop at the remotest end is absorbed surely.
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Family
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Cited Art Landscape
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