Sewing machine driving system

Details Sewing machine driving system Sewing machine driving system

1986-10-15

1987-12-22

Nerbun, Peter

Sewing

Elements

Starting or stopping

D05B 6922

Patent

active

047140399

ABSTRACT:
A sewing machine driving system comprises: a reluctance motor operatively coupled to a sewing machine main shaft and having a stator and a rotor; a drive circuit for driving the reluctance motor; an angular position detector for detecting the angular position of the rotor with respect to the stator; a needle position detector for detecting the position of a sewing needle connected to the main shaft; a first control unit responsive to a drive command and a signal from the angular position detector for driving the reluctance motor at variable speeds; and a second control unit responsive to a stop command and signals from the angular position detector and the needle position detector for braking the reluctance motor to stop the sewing needle in a prescribed needle position.

REFERENCES:
patent: 3910211 (1975-10-01), Kubokura
patent: 4080914 (1978-03-01), Ishida et al.
patent: 4137860 (1979-02-01), Yoneji et al.
patent: 4545314 (1985-10-01), Fujikawa
patent: 4627370 (1986-12-01), Nakamura

Affiliated with

Also associated with

Rating

Sewing machine driving system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sewing machine driving system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sewing machine driving system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-813308