Brother Kogyo Kabushiki-Kaisha

Kogyo Kabushiki Kaisha

Kazunori Irie

Shigeru Suzuki

Etsuzo Nomura

Hirosumi Itoh

Hirokazu Takeuchi

Hirokasu Takeuchi

A pattern-matching joining machine for joining two sheets (e.g., sewing two cloths) having the same patterns with the patterns matching. The pattern-sensing photo-sensor generates intensity data for three different colors and the color data processed to correctly discriminate elements of a pattern having colors of similar brightnesses, and to accurately pick out pattern elements with faint colors from behind outstanding pattern elements. One way of processing the data includes calculating differences between intensity data for different colors. Another way includes selecting the color that has the largest intensity change.

Pattern-matching sheet-joining machine

A pattern-matching sewing machine for sewing two sheets, (e.g. two cloths) having the same patterns with their patterns matching. The sewing machine has a plurality of mismatch calculation modes. The operator selects one of the calculation modes appropriate to the type or characteristics of the pattern to be sewn and the mismatch distance is calculated according to the selected mode.

Pattern-matching sewing machine

A pattern-matching sewing machine that constantly samples photo-intensity data during calculation of a mismatch distance and during adjustment of the feeding mechanism based on the calculated mismatch distance. When the adjustment is finished, a new mismatch-distance calculation is quickly started, not by waiting for sampling new photo-intensity data of a predetermined number, but by using photo-intensity data of the predetermined number including the data thus sampled during the previous calculation and adjustment, and the previously stored data which have been used in the previous calculation.

Growing community of inventors

Ichinomiya, Japan

Kazunori Irie