Sewing machine provided with needle bar rocking mechanism
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsYuki Ihira, Masayuki Iwata, Takashi Hirata
Life of this patent
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Abstract
A sewing machine includes a needle bar to which a needle is attached, a needle bar rocking mechanism which rocks the needle bar, a needle plate having a needle hole through which the needle is passed, an imaging device which images a lower part of the needle bar, a setting section which sets a range of rocking motion of the needle bar based on an image obtained by the imaging device, and a control device which controls the needle bar rocking mechanism based on the range of rocking motion set by the setting section.
Claims14
A sewing machine comprising:
- a needle bar to which a needle is attached;
- a needle bar rocking mechanism which rocks the needle bar;
- a needle plate having a needle hole through which the needle is insertable;
- an imaging device which images a lower part of the needle bar;
- a setting section which sets a range of rocking motion of the needle bar based on an image obtained by the imaging device;
- and
- a control device which controls the needle bar rocking mechanism based on the range of rocking motion set by the setting section.
A sewing machine comprising:
- a needle bar to which a needle is attached;
- a needle bar rocking mechanism which rocks the needle bar;
- a needle plate having a needle hole through which the needle is insertable;
- an imaging device which images a lower part of the needle bar;
- an extracting section which extracts contour images of the needle hole and the needle based on an image obtained by the imaging device;
- and
- a control device which controls a range in which the needle bar is allowed to be rocked by the needle bar rocking mechanism, based on the contour images extracted by the extracting section.
A sewing machine comprising:
- a needle bar to which a needle is attached;
- a needle bar rocking mechanism which rocks the needle bar;
- a needle plate having a needle hole through which the needle is passed;
- a button presser foot which holds a button below the needle bar;
- an imaging device which images a plurality of buttonholes formed in the button;
- an identifying section which identifies positions of at least two of the plural buttonholes, based on an image obtained by the imaging device;
- a setting section which sets a rocking position of the needle bar so that the needle is passed through said at least two buttonholes, based on the positions of the buttonholes identified by the identifying section;
- and
- a control device which controls the needle bar rocking mechanism based on the rocking position of the needle bar set by the setting section.
Dependencies are inferred from the claim text.