Sewing – Elements – Frames
Patent
1982-09-30
1985-06-04
Nerbun, Peter
Sewing
Elements
Frames
112103, 11212112, 1122623, D05C 906
Patent
active
045207453
ABSTRACT:
In a seam forming method and device for a sewing machine for embroidery, wherein a contour of a figure to be embroidered is converted into positional co-ordinates and read, data is calculated for alternately setting needle location points on opposing portions of the contour in such a manner that embroidery seams is formed in the contour corresponding to the positional co-ordinates thus read, and the data are read out and a needle is vertically moved to form the embroidery seams, with a taboret being moved in directions X and Y, with a figure including at least one side having a circular arc-shaped contour out of two opposing sides, needle location points are set at regular intervals circumferentially on a circular arc-shaped side, and needle location points on a side opposed to the circular arc-shaped side are set at points of intersections of the side opposed to the circular arc-shaped side with radial lines from the center of the circular arc passing through the midpoint of the needle location points on the circular arc-shaped side.
REFERENCES:
patent: 4190007 (1980-02-01), Kimura et al.
patent: 4290375 (1981-09-01), Tonomura et al.
patent: 4352334 (1982-10-01), Childs et al.
patent: 4383489 (1983-05-01), Sugiyama et al.
patent: 4385570 (1983-05-01), Yanagi
Noguchi Minetoshi
Shinomiya Hiroaki
Nerbun Peter
Tokyo Juki Industrial Co. Ltd.
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