抄録
The operation of hands on the sewing of curved line by electric sewing machine is importance. As the operation of hands is a delicate for the beginners, they need an apt training curved line. This study developed five sorts of exponential curved lines which resemble the pattern of sleeve top, and investigated about the sewing ability of female students using them.
The results were summarized as follows.
1) The miss score-The sewing velocity diagrams were drawn from the experimental results.
2) It was found from the above diagrams that the sewing velocity of experts at sewing when they sewed sharp curved lines (9cm, 12cm, 15cm wave height) by elctric sewing machine were much the same as foot pedal sewing machine's.
3) Unskilled students sewed sharp curved lines fast. Therefore they were tired very much and their miss scores were increased.
4) To practice the sewing using a gentle curved line (3cm wave height) have much effect on unskilled adult women.
