Sewing machine

Details Sewing machine Sewing machine

1996-02-05

1997-08-26

Nerbun, Peter

Sewing

Special machines

Pattern controlled or programmed

112220, D05B 1912, D05B 6912

Patent

active

056601298

ABSTRACT:
A sewing machine including a needle bar to which a sewing needle is secured, a needle-bar drive motor which reciprocates the needle bar, a hook, a hook drive motor which rotates the hook, a speed detector which detects a rotation speed of the needle-bar drive motor, an information obtaining device which obtains information indicating that the rotation speed of the needle-bar drive motor will change, and a control device which controls, based on the detected rotation speed of the needle-bar drive motor and the obtained information, the hook drive motor so that the hook is rotated in synchronism with the reciprocation of the needle bar.

REFERENCES:
patent: 5088429 (1992-02-01), Kanegae
patent: 5189971 (1993-03-01), Frankel et al.
patent: 5271346 (1993-12-01), Mori
patent: 5458075 (1995-10-01), Tice et al.

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