Sewing machine and non-transitory computer readable medium

摘要

A sewing machine includes a bed, a needle plate, a needle bar, a needle bar swing mechanism, an optical detecting portion, and a control portion. The optical detecting portion is configured to optically detect a cord pressed by a presser foot, and to output data representing the cord. The control portion is configured to calculate a width of the cord based on the data output by the optical detecting portion, calculate a swing width of the needle bar based on the width of the cord, and cause the needle bar swing mechanism to swing the needle bar with the swing width.

主权项

1. A sewing machine comprising:
a bed; a needle plate provided on the bed and having a flat surface; a needle bar configured to hold a sewing needle; a needle bar swing mechanism configured to cause the needle bar to swing in a first direction; a presser foot configured to press a cord onto the flat surface the presser foot including a needle opening and a guide portion, the needle opening being configured to allow the sewing needle to pass through the needle opening, the guide portion being configured to guide the cord toward the needle opening along a second direction, the second direction being substantially parallel to the flat surface of the needle plate and substantially perpendicular to the first direction; an optical detecting portion including an image capturing portion, the image capturing portion being configured (i) to capture an image of the cord pressed by the presser foot, a width of the cord being expanded by being pressed by the presser foot, and (ii) to output data representing the image of the cord pressed by the presser foot inside the needle opening; and a control portion configured to:
calculate an expanded width of the cord based on the data output by the optical detecting portion, the width of the cord expanding in a third direction, the third direction being substantially parallel to the flat surface of the needle plate and substantially perpendicular to an extending direction of the cord,calculate a swing width of the needle bar based on the expanded width of the cord, andcause the needle bar swing mechanism to swing the needle bar with the swing width.