Zigzag mechanism for a sewing machine

Details Zigzag mechanism for a sewing machine Zigzag mechanism for a sewing machine

1981-07-23

1983-08-16

Schroeder, Werner H.

Sewing

Work manipulating

Guides

D05B 302

Patent

active

043984819

ABSTRACT:
A frame of a needle bar mechanism is mounted in a sewing machine arm and supports the swingable needle bar holder to enable zigzag motion of the needle. A stepping motor is mounted in the frame and connected by a link from the shaft of the motor to the needle bar holder. The motor is controlled by stitch codes supplied by 8 amplifier circuits and automatic control devices. The link is formed so that the driving arrangement can be calibrated and an elastic engagement is provided between the motor shaft and the needle bar holder. The transfer distance through only one link is short so the friction loss is small. This, in combination with a small holding torque of the needle bar, restricts the dimension of the stepping motor.

REFERENCES:
patent: 3926133 (1975-12-01), Herron
patent: 4145983 (1979-03-01), Law

Affiliated with

Also associated with

Rating

Zigzag mechanism for a sewing machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zigzag mechanism for a sewing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zigzag mechanism for a sewing machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-808881