Threading device of sewing machine

Details Threading device of sewing machine Threading device of sewing machine

2011-03-15

2011-03-15

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Needles

C223S099000

Reexamination Certificate

active

07905188

ABSTRACT:
A threading device of a sewing machine having a plurality of needles is provided. The threading device is configured to insert a thread through an eye of any one of the needles. The threading device includes a threading hook which moves forward to enter the eye of one of the needles and moves backward to catch and insert the thread through the eye, a threading mechanism which moves the threading hook to insert the thread, a selecting portion operable to select, among the plurality of needles, a needle through which the thread is to be inserted, a positioning mechanism which moves the threading hook to a position corresponding to the needle selected by operating the selecting portion, and a selected needle indicating device which distinguishably indicates the needle with respect to which the threading hook has been positioned by operating the selecting portion.

REFERENCES:
patent: 4070977 (1978-01-01), Yamamoto et al.
patent: 5333560 (1994-08-01), Yoshida
patent: 2003/0019410 (2003-01-01), Sano et al.
patent: 03-133483 (1991-06-01), None
patent: 10-137482 (1998-05-01), None
patent: 02006061398 (2006-03-01), None

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