Cloth edge control device for a sewing machine

Details Cloth edge control device for a sewing machine Cloth edge control device for a sewing machine

1995-03-20

1997-11-18

Nerbun, Peter

Sewing

Special machines

Pattern controlled or programmed

11247007, 112306, 112308, 112318, 112153, 226 17, D05B 2100

Patent

active

056876602

ABSTRACT:
A cloth edge control device for a sewing machine includes a pair of rollers, an optical sensor, and controller. The pair of rollers are arranged near a needle location in such a manner that the rollers are rotating about an axis perpendicular to a direction in which a cloth material is fed, so as to be pushed against the cloth material. The optical sensor is adapted for detection of the cloth material at a plurality of points on a line along a direction intersecting with the feed direction before the needle location. The controller detects the position and curvature of the edge of the cloth material according to a light intercept signal from the optical sensor and rotates the rollers independently of each other according to the position and curvature thus detected.

REFERENCES:
patent: 4417535 (1983-11-01), Hannemann
patent: 4643118 (1987-02-01), Bungert et al.
patent: 5020460 (1991-06-01), Babson et al.
patent: 5186115 (1993-02-01), Rouleau et al.
patent: 5289788 (1994-03-01), Fukumoto
patent: 5415118 (1995-05-01), Adamski, Jr. et al.
patent: 5493980 (1996-02-01), Nishimori et al.
patent: 5497720 (1996-03-01), Kawasaki

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