Sewing machine with automatic threading apparatus

Details Sewing machine with automatic threading apparatus Sewing machine with automatic threading apparatus

2007-02-20

2007-02-20

Worrell, Danny (Department: 3765)

Sewing

Elements

Needles

Reexamination Certificate

active

11140920

ABSTRACT:
A sewing machine includes a needle bar reciprocally movable up and down, a thread take-up lever reciprocally swingable up and down, a thread supply which supplies a needle thread to the needle bar carrying the sewing needle, a plurality of thread guides including the thread take-up lever, an automatic threading apparatus automatically carrying the needle thread extending from the thread supply and passing the needle thread through the thread guides including the thread take-up lever, a first preparatory path formed for threading so that the needle thread extending from the thread supply can be passed through the thread guides by the automatic threading apparatus, and a second preparatory path formed for threading so that the needle thread extending from the thread supply can manually be passed through the thread guides, The thread take-up lever is displaced within a range of reciprocal swing so that threading is possible for at least one of the first and second preparatory paths.

REFERENCES:
patent: 4185574 (1980-01-01), Totino et al.
patent: 4651660 (1987-03-01), Oshima et al.
patent: 6067919 (2000-05-01), Shoji
patent: 6814016 (2004-11-01), Hori
patent: 6918344 (2005-07-01), Ebata et al.
patent: 6959656 (2005-11-01), Fukao
patent: 2004/0089210 (2004-05-01), Fukao
patent: 2004/0089211 (2004-05-01), Hori
patent: B2 2-14866 (1990-04-01), None

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