Pattern-matching sewing machine

Details Pattern-matching sewing machine Pattern-matching sewing machine

1989-03-31

1990-02-20

Nerbun, Peter

Sewing

Stitch forming

Feeding work material

11212111, 112320, D05B 2706, D05B 2708

Patent

active

049016601

ABSTRACT:
A pattern-matching sewing machine having a feed-correcting means for accurately adjusting feed amount using a correction factor with three values which are set according to various sewing conditions such as species of cloths and a speed of a main motor. When the feed amount for pattern matching is calculated based on only a mismatch distance detected by a photo-sensor, the accurate pattern matching is not achieved due to the various sewing conditions. Therefore, the feed-correcting means selects the optimum one of the three values to accurately correct the feed amount for a good pattern matching.

REFERENCES:
patent: 4363281 (1982-12-01), Reinke
patent: 4612867 (1986-09-01), Rosch et al.
patent: 4757773 (1988-07-01), Nomura
patent: 4766828 (1988-08-01), Nomura et al.
patent: 4777896 (1988-10-01), Nomura

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