Sewing Pattern Coordinate Adjustment for Smooth Pattern Connections

Solution Overview

Problem

Existing sewing machine technologies struggle to create a natural connection between collective patterns, resulting in unnatural seams when the needle direction and distance between patterns are opposite, especially when the distance is significant, leading to an unnatural appearance in the sewing pattern.

Innovation Solution

A coordinate data creating device and program for sewing machines that adjust independent original values for X-coordinate and Y-coordinate values of needle locations to ensure smooth connections between collective patterns by aligning the direction of adjustment values, particularly focusing on the Y-coordinate value to create a natural fluctuation in the connecting portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If independent original values are added to create hand-drawn taste fluctuations, then the seam comfort and warmth are improved, but the connection between collective patterns becomes unnatural when needle directions are opposite

Engineering Contradiction:

Improveseam qualityVSAvoidpattern connection naturalness

Core Design Contradiction:

Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The patent applies different fluctuation strategies to different parts of the sewing pattern. For connections between collective patterns, the system determines the needle operation direction and adjusts the fluctuation values accordingly - using smaller fluctuations when directions are opposite and larger fluctuations when directions are similar, thereby achieving natural-looking connections while maintaining hand-drawn taste in other areas.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent makes the fluctuation values dynamic rather than static. The system calculates the needle operation direction between sequential needle locations and dynamically adjusts the fluctuation magnitude based on whether the direction is opposite or similar to the previous operation. This dynamic adjustment ensures natural transitions between patterns while preserving the hand-drawn aesthetic.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the same fluctuation is added to all coordinate data, then hand-drawn taste is achieved, but the connection portion between collective patterns becomes unnatural when distance is significant

Engineering Contradiction:

Improvepattern creation simplicityVSAvoidconnection smoothness

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent applies different fluctuation strategies to different parts of the sewing pattern. For connections between collective patterns, the system determines the needle operation direction and adjusts the fluctuation values accordingly - using smaller fluctuations when directions are opposite and larger fluctuations when directions are similar, thereby achieving natural-looking connections while maintaining hand-drawn taste in other areas.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent makes the fluctuation values dynamic rather than static. The system calculates the needle operation direction between sequential needle locations and dynamically adjusts the fluctuation magnitude based on whether the direction is opposite or similar to the previous operation. This dynamic adjustment ensures natural transitions between patterns while preserving the hand-drawn aesthetic.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11926942B2Coordinate data creating device, sewing machine and program

Publication Date: 2024.03.12 JANOME CORP

AI summary

In an added coordinate data creating unit, when coordinate data of two sequential needle locations in a sewing order stored in a data storage unit is the coordinate data of a final needle location of one collective pattern and the coordinate data of a first needle location of another collective pattern sewn immediately after the one collective pattern, a added coordinate data creating unit is configured to create a new coordinate data by adjusting independent original values added respectively to the coordinate data of the final needle location of the one collective pattern and the coordinate data of the first needle location of the another collective pattern sewn immediately after the one collective pattern so that a connecting portion between the one collective pattern and the another collective pattern sewn immediately after the one collective pattern is connected smoothly.