Sewing Machine Coordinate Data Generator for Hand-Drawn Seam Effects

Solution Overview

Problem

Existing sewing technologies struggle to maintain the original pattern shape while imparting a hand-drawn-effect and a warm fuzzy feeling to the sewing pattern, especially when dealing with patterns that include multiple rings or bold lines.

Innovation Solution

A sewing machine coordinate data generator that adds independent values to the X and Y coordinate values of needle positions to generate new coordinate data, ensuring that when the distance between needle positions is within a predetermined range, the same adjustment values are applied to maintain the original pattern shape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If independent values are added to each coordinate data to create hand-drawn-effect, then the warmth and hand-drawn feeling is improved, but the original pattern shape is damaged

Engineering Contradiction:

Improvehand-drawn-effectVSAvoidpattern shape

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies different processing rules to different coordinate data based on their spatial relationships. When coordinate data points are within a predetermined distance of each other, the same independent values are added to maintain shape integrity. When they are farther apart, different independent values are added to create hand-drawn effect. This local differentiation resolves the contradiction by applying quality variations only where needed.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent dynamically adjusts the amount of variation added to coordinate data based on the distance between adjacent points. The system evaluates the spatial relationship and adapts the independent values accordingly, creating a dynamic processing approach that balances hand-drawn effect with shape preservation rather than using a static uniform approach.

Inventive Principle:

Principle #15Dynamics

2Manufacturing precision

If the same independent values are added to coordinate data within predetermined distance, then the original pattern shape is maintained, but the hand-drawn-effect is reduced

Engineering Contradiction:

Improvepattern shapeVSAvoidhand-drawn-effect

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent applies different processing rules to different coordinate data based on their spatial relationships. When coordinate data points are within a predetermined distance of each other, the same independent values are added to maintain shape integrity. When they are farther apart, different independent values are added to create hand-drawn effect. This local differentiation resolves the contradiction by applying quality variations only where needed.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies hand-drawn effect variation partially rather than uniformly across all coordinate data. By limiting the full variation effect only to coordinate points beyond a certain distance threshold, the system achieves sufficient hand-drawn effect in critical areas while preserving shape accuracy in areas where points are closely spaced, thus avoiding excessive action that would damage the overall pattern.

Inventive Principle:

Principle #16Partial or excessive action

3Ease of manufacture

If independent values are added to all coordinate data, then the hand-drawn-effect is improved, but the seam quality becomes inconsistent

Engineering Contradiction:

Improvehand-drawn-effectVSAvoidseam quality

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent applies different processing rules to different coordinate data based on their spatial relationships. When coordinate data points are within a predetermined distance of each other, the same independent values are added to maintain shape integrity. When they are farther apart, different independent values are added to create hand-drawn effect. This local differentiation resolves the contradiction by applying quality variations only where needed.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system evaluates the distance between adjacent coordinate data points and uses this feedback to determine the appropriate processing approach. This feedback mechanism ensures that seam quality is maintained by adjusting the variation application based on the actual spatial relationships in the pattern, preventing inconsistent quality that would result from uniform application.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12276056B2Coordinate data generator, sewing machine, and program

Publication Date: 2025.04.15 JANOME CORP

AI summary

A coordinate data generator comprises a coordinate data storage to store a coordinate data of needle positions; and a post-addition coordinate data generation section to add independent values to a X coordinate value or a Y coordinate value of the coordinate data for each item of the coordinate data stored in the coordinate data storage, so as to generate new coordinate data.