Sewing machine, stitch data generating device and stitch data generating program

Abstract

A sewing machine which forms stitches on a first object to be sewn based on stitch data, includes an imaging unit which images an outline of an upper cloth as the first object onto a lower cloth as a second object, obtaining image data, an outline calculation unit which calculates the outline of the upper cloth from the image data obtained by the imaging unit, a determination unit which determines a stitch-forming region for sewing the upper cloth onto the lower cloth based on the outline of the upper cloth calculated by the outline calculation unit, and a stitch data generating unit which generates stitch data for the stitch-forming region determined by the determination unit.

1 . A sewing machine which forms stitches on a first object to be sewn based on stitch data, comprising:
 an imaging unit which images an outline of an upper cloth as the first object onto a lower cloth as a second object, thereby obtaining image data;   an outline calculation unit which calculates the outline of the upper cloth from the image data obtained by the imaging unit;   a determination unit which determines a stitch-forming region for sewing the upper cloth onto the lower cloth based on the outline of the upper cloth calculated by the outline calculation unit; and   a stitch data generating unit which generates stitch data for the stitch-forming region determined by the determination unit.   
     
     
         2 . The machine according to  claim 1 , wherein the upper cloth is a pocket cloth and the determination unit determines a region of the outline of the pocket cloth other than a region defining a pocket opening, as the stitch-forming region out of the outline of the pocket cloth, and the stitch data generating unit generates the stitch data according to the outline of the pocket cloth in the stitch generating region determined by the determination unit. 
     
     
         3 . The machine according to  claim 2 , wherein the stitch data generating unit includes a reinforcement stitch data generating unit which generates reinforcement stitch data for forming reinforcement stitches on ends of the region defining the pocket opening. 
     
     
         4 . The machine according to  claim 3 , further comprising a storage unit which stores a plurality of types of patterns as the reinforcement stitch data, wherein the reinforcement stitch data generating unit includes a setting unit which sets one of the types of patterns stored on the storage unit, said one type of pattern being desired by the user. 
     
     
         5 . A stitch data generating device which generates stitch data for a sewing machine which forms stitches on a first object to be sewn based on stitch data, the device comprising:
 an imaging unit which images an outline of an upper cloth as the first object to be sewn onto a lower cloth serving as a second object, thereby obtaining image data;   an outline calculation unit which calculates the outline of the upper cloth from the image data obtained by the imaging unit;   a determination unit which determines a stitch-forming region for sewing the upper cloth onto the lower cloth based on the outline of the upper cloth calculated by the outline calculation unit; and   a stitch data generating unit which generates stitch data for the stitch-forming region determined by the determination unit.   
     
     
         6 . The device according to  claim 5 , wherein the upper cloth is a pocket cloth and the determination unit determines a region of the outline of the pocket cloth other than a region of a pocket opening as the stitch-forming region out of the outline of the pocket cloth, and the stitch data generating unit generates the stitch data along the outline of the pocket cloth in the stitch generating region determined by the determination unit. 
     
     
         7 . The device according to  claim 6 , wherein the stitch data generating unit includes a reinforcement stitch data generating unit which generates reinforcement stitch data for forming a reinforcement stitch on ends of the region defining the pocket opening. 
     
     
         8 . The device according to  claim 7 , further comprising a storage unit which stores a plurality of types of patterns as the reinforcement stitch data, wherein the reinforcement stitch data generating unit includes a setting unit which sets one of the types of patterns stored on the storage unit, said one type of pattern being desired by the user. 
     
     
         9 . A computer-readable medium storing a stitch data generating program on which a computer executes processing for generating stitch data for a sewing machine which forms stitches on a first object to be sewn based on stitch data, the program comprising:
 an imaging routine of imaging, by an imaging unit, an outline of an upper cloth as the first object to be sewn onto a lower cloth as a second object, thereby obtaining image data;   a calculation routine of calculating the outline of the upper cloth from the image data obtained by the imaging unit;   a determination routine for determining a stitch-forming region for sewing the upper cloth onto the lower cloth based on the outline of the upper cloth calculated by the outline calculation unit; and   a stitch data generating routine for generating stitch data for the stitch-forming region determined by the determination unit.