Sewing machines, sewing data, and sewn products
The sewing machine employs a polygon-based sewing data process to enhance the three-dimensional effect of French knot stitches, addressing the limitations of conventional machines by ensuring a uniform and aesthetically superior finish.
JP2026119801APending Publication Date: 2026-07-21BROTHER KOGYO KK
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- BROTHER KOGYO KK
- Filing Date
- 2025-01-08
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Conventional sewing machines fail to accurately reproduce the three-dimensional roundness of a hand-sewn French knot stitch, resulting in uneven finishes and poor appearance due to the formation of zigzag stitches at high density.
Method used
A sewing machine with a needle bar, carriage, and processor that uses sewing data to sew a first and second polygon, inscribed in the same virtual ring, to create a unit pattern that enhances the three-dimensional effect by overlapping stitches.
Benefits of technology
Improves the reproducibility of the three-dimensional roundness of a hand-sewn French knot stitch, achieving a more uniform and aesthetically pleasing finish.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026119801000001_ABST
Abstract
To provide a sewing machine, sewing data, and sewn product that contribute to improving the reproducibility of the three-dimensional roundness of hand-sewn French knot stitches when using a sewing machine. [Solution] The sewing machine comprises a needle bar, a carriage, memory, and a processor. The memory stores sewing data for sewing a unit pattern consisting of a first polygon and a second polygon superimposed on a workpiece held in an embroidery hoop. The processor retrieves the sewing data from the memory (S3). Based on the sewing data, the processor executes a unit pattern sewing process to sew the unit pattern onto the workpiece (S24). The unit pattern sewing process is a process in which a first process (S26) for sewing the first polygon based on the first data is executed a predetermined number of times, and a second process (S28) for sewing the second polygon based on the second data is executed a predetermined number of times. The first polygon and the second polygon are inscribed in the same virtual ring.
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