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US 2016/0258093 A1Published application
Sewing machine
AssigneeJanome Sewing Machine Co., Ltd.
InventorsMikio KOIKE, Jun MAFUNE
Life of this patent
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Abstract
A sewing machine translates a stitchwork frame with which a cloth is fastened along a direction of a plane where the cloth is fastened based on stitchwork data to form a stitchwork pattern. A presser foot located above the cloth has a height changed by an actuator like a stepping motor in accordance with the advancement of a stitchwork formation. Hence, a predetermined clearance between the cloth and the presser foot is maintained.
Claims7
A sewing machine forming a stitchwork pattern on a cloth, the sewing machine comprising:
- a stitchwork data memory storing stitchwork data, the stitchwork data being to form the stitchwork pattern;
- a stitchwork frame fastening the cloth;
- a frame driving mechanism translating the stitchwork frame horizontally along a direction of a plane where the cloth is fastened based on the stitchwork data;
- a presser foot located above the cloth;
- and
- an actuator changing a height of the presser foot in accordance with an advancement of a stitchwork formation, and maintaining a predetermined clearance below the presser foot with the cloth.
3 more elements
Dependencies are inferred from the claim text.