Release-Thread Fabric Extension for Clean Garment Length Adjustment

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Solution Overview

Problem

Existing fabric items, particularly garments, often fail to fit individuals due to a lack of available sizes, leading to the need for bespoke tailoring, which can result in waste, expense, and inconvenience.

Innovation Solution

An adjustable fabric length system with extension pieces sewn to the fabric body using release threads, allowing for easy length adjustment by pulling the threads to detach or attach extension pieces, eliminating the need for cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If garments are manufactured in multiple distinct sizes, then fit for different individuals is improved, but manufacturing complexity and inventory management complexity increase

Engineering Contradiction:

Improvefit for different individualsVSAvoidmanufacturing and inventory complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The garment is divided into a main body and separate extension pieces that can be selectively added or removed. This segmentation allows a single base size to be adapted to multiple size requirements through combination with different extension pieces, reducing the need to manufacture multiple complete garment sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The garment size is made dynamically adjustable through release threads that allow extension pieces to be easily attached or detached. This dynamic configuration enables the garment to adapt to different size requirements without requiring separate manufactured versions for each size.

Inventive Principle:

Principle #15Dynamics

2Device complexity

If garments are manufactured in one size only, then manufacturing complexity is reduced, but adaptability to different individuals deteriorates

Engineering Contradiction:

Improvemanufacturing complexityVSAvoidfit for different individuals

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Extension pieces act as intermediaries between the single-size garment and the diverse size requirements of different individuals. These intermediate components provide the necessary length adjustments without requiring the main garment to be manufactured in multiple sizes.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If end users actively cut the garment to desired length, then size adjustment is achieved, but garment appearance and quality deteriorate due to fraying and untidy appearance

Engineering Contradiction:

Improvesize adjustment capabilityVSAvoidgarment appearance

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The extension pieces are pre-attached to the garment body using release threads during manufacturing. This preliminary preparation allows users to simply pull the release thread to detach extension pieces without needing to perform cutting or other destructive actions that would damage the garment appearance.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The cutting action is replaced with a thread-pulling mechanism. Instead of using scissors to cut the fabric (which creates fraying and messy edges), the user simply pulls the release thread to detach the extension piece cleanly, preserving the garment's appearance.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If release thread is made accessible for length adjustment, then ease of operation is improved, but risk of inadvertent pulling increases

Engineering Contradiction:

Improvelength adjustment accessibilityVSAvoidrisk of inadvertent pulling

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The release thread is extracted from its traditional accessible position and relocated to the interior of the garment. This extraction removes the thread from the user's direct interaction zone, eliminating the risk of inadvertent pulling while the extension pieces remain externally visible and identifiable as adjustment components.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The extension pieces themselves serve as intermediaries that indicate where adjustment is needed. Users can identify the presence of extension pieces externally and intentionally seek out the corresponding release threads for adjustment, rather than having freely accessible threads that might be accidentally pulled.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4210528B1An adjustable fabric length system for adjusting the length of the fabric and a method of adjusting the length of the fabric.

Publication Date: 2025.11.19 THE HMZ CO PTY LTD

Figure 1A~1B
Figure 1C~1D
Figure 1E

AI summary

Systems and methods of adjusting a length of fabric are disclosed. In one form, a system is disclosed for adjusting a length of fabric, said system including: a fabric body having at least one edge portion; at least one extension piece of fabric having an inner edge portion and an opposed outer edge portion and extending distally away from the at least one edge portion in an edge portion to edge portion arrangement. The at least one extension piece is sewn to the at least one edge portion with at least one release thread and at least one tab operably associated with an end of the at least one thread. The length of fabric is adjusted by moving the at least one tab and pulling the at least one release thread to release and separate the at least one extension piece from the fabric body.