Thread cutting device of sewing machine

Details Thread cutting device of sewing machine Thread cutting device of sewing machine

2011-04-19

2011-04-19

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Thread cutting, severing or breaking

Reexamination Certificate

active

07926434

ABSTRACT:
A thread cutting device of a sewing machine cuts a thread below a throat plate through which a needle is inserted. The thread cutting device includes a first thread catcher operable to catch the thread, a second thread catcher operable to catch the thread caught by the first thread catcher, a fixed blade operable to cut the thread caught by the second thread catcher, a driving portion which drives the first thread catcher and the second thread catcher such that the second thread catcher catches the thread caught by the first thread catcher and guides the thread toward the fixed blade, an attaching member to which the fixed blade is fixed and into which the second thread catcher is slidably inserted from above over the fixed blade, and a cover which covers the second thread catcher from above to restrict an upward movement of the second thread catcher.

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patent: 5722338 (1998-03-01), Douyasu
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patent: 7603957 (2009-10-01), Shiraishi
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patent: 2009/0211505 (2009-08-01), Hanada
patent: 3106472 (2000-09-01), None
patent: 2008-086596 (2008-04-01), None
patent: 2008-086598 (2008-04-01), None

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