Size-Adjustable Garment With Hidden Inner Layer Adjustment

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing size-adjustable garments for the upper body often result in unwanted wrinkles and visible design alterations, which are unsuitable for formal settings.

Innovation Solution

A size-adjustable garment with a partially two-layered back part, where the inner layer has adjustable connecting parts hidden beneath the outer layer, allowing for size adjustments without visible wrinkles or design alterations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional adjustment devices (belts, zippers, elastic bands) are used, then size adjustment is enabled, but the garment develops unwanted wrinkles and visible design alterations

Engineering Contradiction:

Improvesize adjustment capabilityVSAvoidgarment appearance

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The back part is divided into multiple back sections that can be independently adjusted relative to each other. This segmentation allows the garment to adapt to different body sizes while maintaining a smooth, wrinkle-free appearance because each section can be precisely positioned without requiring fabric reserves or visible adjustment mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adjustment mechanism is extracted from the visible exterior and relocated to the interior of the garment. The connecting parts are positioned between the back sections and are concealed by the outer layer, eliminating visible adjustment devices and preventing wrinkles while preserving size adaptability.

Inventive Principle:

Principle #2Taking out (Extraction)

2Adaptability or versatility

If fabric reserve is provided for adjustment, then size change is possible, but wrinkles are created in the garment

Engineering Contradiction:

Improvesize adjustabilityVSAvoidwrinkles

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The garment employs dynamic connecting parts that can be adjusted in length to accommodate different body circumferences. This dynamic adjustment mechanism eliminates the need for static fabric reserves, allowing the garment to adapt smoothly to size changes without creating wrinkles or requiring hem adjustments.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If visible adjustment mechanisms are incorporated, then size adjustment is achieved, but the design is affected and becomes less suitable for formal settings

Engineering Contradiction:

Improvesize adjustmentVSAvoidvisible adjustment mechanisms

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The outer layer serves as an intermediary that conceals the adjustment mechanism. By positioning the connecting parts between the back sections and covering them with the outer layer, the garment achieves size adjustment capability while presenting a clean, simple exterior suitable for formal occasions.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4566474A1Size-adjustable clothing item for the upper body

Publication Date: 2025.06.11 QUITZKE JOSI

Figure 1~2
Figure 3~6
Figure 7~10

AI summary

A size-adjustable garment (10) for the upper body with a back part, characterized in that the back part is designed in two layers with an inner and an outer layer (12, 14), wherein the inner layer (12) comprises at least two back sections (15, 16) which are connected by adjustable connecting parts (18), and the outer layer (14) extends at least over the connecting parts (18) so that these are not visible from the outside.