US 12,331,441 B2
Sewing machine
Kunihiro Ito, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Jun. 17, 2024, as Appl. No. 18/745,463.
Application 18/745,463 is a continuation of application No. PCT/JP2023/002040, filed on Jan. 24, 2023.
Claims priority of application No. 2022-013492 (JP), filed on Jan. 31, 2022.
Prior Publication US 2024/0337054 A1, Oct. 10, 2024
Int. Cl. D05B 21/00 (2006.01); D05B 19/08 (2006.01); D05B 19/14 (2006.01); D05B 19/16 (2006.01); D05C 5/02 (2006.01)
CPC D05B 21/002 (2013.01) [D05B 19/08 (2013.01); D05B 19/14 (2013.01); D05B 19/16 (2013.01); D05C 5/02 (2013.01); D05D 2205/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A sewing machine comprising:
a bed including a needle plate, the bed being configured such that a sewing workpiece is placed thereon;
a projector configured to project a projection image toward the bed;
a needle bar configured that a sewing needle is attachable to a lower end of the needle bar, the needle bar being movable up and down to form stitches on the sewing workpiece;
a feed dog configured to feed the sewing workpiece in a first direction relative to the needle bar;
an actuator configured to move the needle bar in a second direction relative to the needle plate, the second direction crossing the first direction; and
a controller configured to:
acquire sewing data for forming a utility pattern continuously in the first direction, the utility pattern including stitches crossing the first direction;
acquire a condition for sewing a tapering pattern including a tapering portion, the tapering portion being obtained by deforming the utility pattern to be tapered toward one side in the first direction;
generate the projection image representing the tapering pattern, based on the sewing data and the condition;
control the needle bar, the feed dog, and the actuator in accordance with the sewing data to sew the utility pattern continuously in the first direction;
after starting sewing of the utility pattern, control the projector to project the projection image at a planned sewing position of the tapering pattern in a planned sewing size; and
perform a tapering pattern sewing operation of, after starting projection of the projection image, controlling the needle bar, the feed dog, and the actuator in accordance with the sewing data and the condition to sew the tapering pattern that is continuous with the utility pattern.