Cup-Free Brassiere Structure for Bust Enlargement Support

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Solution Overview

Problem

Existing brassieres for breast enhancement do not effectively enlarge the bust without using bra cups, and there is a need for a method to enhance bust size naturally and safely.

Innovation Solution

A brassiere design that supports the bust from below without bra cups, incorporating a supporting part and an optional pressing member that applies downward force, enhancing lymphatic and blood flow to promote swelling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a brassiere with bra cups is used to support the bust, then the bust is supported and shaped, but the bust size cannot be enlarged

Engineering Contradiction:

Improvebust sizeVSAvoidbrassiere structure

Core Design Contradiction:

Volume of moving objectVSDevice complexity

Solution Approach 1:

The invention removes the bra cups from the brassiere structure, extracting the supportive function to only the band and straps. This simplification eliminates the constraint that prevented bust enlargement, allowing the bust to grow naturally without the restrictive cup structure.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using bra cups to contain and shape the bust (conventional approach), the invention inverts the approach by completely removing the cups and allowing the bust to expand freely. The support structure is reduced to minimal elements that do not restrict growth.

Inventive Principle:

Principle #13The other way round (Inversion)

2Volume of moving object

If the bust is supported from below without bra cups, then the bust can be enlarged, but the support function may be insufficient

Engineering Contradiction:

Improvebust sizeVSAvoidsupport function

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The brassiere is segmented into distinct functional components: the band provides circumferential support, the straps provide vertical support, and the absence of cups allows horizontal expansion. This segmentation allows each component to perform its specific function optimally without interfering with bust enlargement.

Inventive Principle:

Principle #1Segmentation

3Volume of moving object

If a pressing member is added to apply downward force, then the bust enhancement effect is improved, but the device complexity increases

Engineering Contradiction:

Improvebust sizeVSAvoidbrassiere structure

Core Design Contradiction:

Volume of moving objectVSDevice complexity

Solution Approach 1:

The pressing member is merged with the existing band structure, integrating the bust-enhancement function into the fundamental support component. This combination adds the enlargement function without requiring a completely separate complex mechanism.

Inventive Principle:

Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The brassiere design significantly enlarges the bust by promoting lymphatic and blood flow, resulting in noticeable swelling and increased bust size over a period of wear.

Implementation Method 1

lymphatic and blood flow in the bust may deteriorate due to being supported by the supporting part

Methodology Applied

Scientific EffectLymphatic flow:

Implementation Method 2

lymphatic and blood flow in the bust may deteriorate due to being supported by the supporting part

Methodology Applied

Scientific EffectBlood flow:

Implementation Method 3

a pressing member that is provided above the supporting part and contacts an upper portion of a bust to apply a force downward to the bust

Methodology Applied

Scientific EffectMechanical force: Mechanical Force

Data Source

PatentEP4663052A1Brassiere, method for enhancing bust size, and method for forming larger bust

Publication Date: 2025.12.17 YAMAKAWA KENSUKE

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Figure 3A

AI summary

Provided is a brassiere including a supporting part that supports a bust from below, in which no bra cup is provided above the supporting part.