Bungee Bra Variable Elasticity for Breast Separation and Stability
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Solution Overview
Problem
Existing support bras, particularly for larger breasted women, fail to provide sufficient support, cause discomfort due to mono-boob, excessive pressure, heat retention, chafing, and underband rolling, while lacking adequate side support and comfort.
Innovation Solution
A bungee bra with a variable elastic coefficient structure is designed, featuring a reshaped elastic fabric in the cups for even pressure distribution and separation of breasts, and a tapered underband with varying elastic tension to prevent rolling, using heat treatment to permanently deform the fabric for customized fit and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heavy materials are used to provide support, then support capability is improved, but comfort and breathability deteriorate due to heat retention and binding
Solution Approach 1:
The bra employs different material densities and elastic coefficients in different regions: lighter, more breathable materials in contact with the skin and heavier, more supportive materials in structural areas. The elastic coefficient varies locally to provide support where needed while maintaining comfort in other areas.
Solution Approach 2:
The bra combines multiple materials with different properties including elastic fabrics, breathable mesh panels, and moisture-wicking layers to achieve both support and comfort. This composite structure allows each material to perform its optimal function without the drawbacks of using a single heavy material throughout.
2Object-affected harmful factors
If light-weight materials are used to improve comfort and breathability, then comfort is improved, but support capability deteriorates causing the bra to shift and bunch up
Solution Approach 1:
Light-weight, breathable materials are used in areas where comfort is prioritized (cup interiors, side panels), while strategic reinforcement with higher-density elastic materials is applied in load-bearing areas (underband, center gore, strap attachments) to maintain support without sacrificing overall comfort.
Solution Approach 2:
The bra is divided into functional zones with different material properties: support zones with higher elastic coefficients, comfort zones with lighter breathable materials, and transition zones that gradually change properties to prevent bunching and shifting.
3Ease of manufacture
If uniform elastic fabric is used throughout the bra, then manufacturing is simplified, but performance deteriorates due to mono-boob effect and uneven pressure distribution
Solution Approach 1:
The elastic fabric incorporates varying elastic coefficients in different regions: higher elasticity in cup areas to allow breast movement and separation, and lower elasticity in support areas to provide stability. This gradient structure prevents mono-boob while maintaining manufacturing feasibility through controlled material variation.
4Stability of the object's composition
If the underband is made with high elastic coefficient to prevent rolling, then stability is improved, but comfort deteriorates due to excessive pressure on the breasts
Solution Approach 1:
The underband features a graduated elastic coefficient structure with higher elasticity at the front center area to reduce breast pressure, and lower elasticity toward the sides and back to enhance stability and prevent rolling. This gradient provides both comfort and stability without compromise.
Solution Approach 2:
The underband's elastic properties are dynamically optimized through variable density construction, allowing the band to adapt its support characteristics across different body positions and movement states, providing stability when needed and comfort when required.
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 bungee bra provides enhanced support, comfort, and stability by evenly distributing pressure, preventing mono-boob and underband rolling, while maintaining breathability and reducing chafing, thus addressing multiple discomfort issues.
Implementation Method 1
heating the elastic fabric in the cup areas to a particular temperature to partially relax the elastic polymer(s) in those areas of the clastic fabric
Implementation Method 2
heating the elastic fabric in the cup areas to a particular temperature to partially relax the elastic polymer(s) in those areas of the clastic fabric
Implementation Method 3
stretching the elastic fabric over a mold to the desired breast-cup shape for a particular user size
Implementation Method 4
the elastic fabric is allowed to cool which tends to set the elastic polymers within the elastic fabric into a new shape. This new shape can be maintained even after washing and drying
Data Source
AI summary
A support bra made with an elastic fabric and having an under band that displays a variable elasticity from top to bottom with a top portion of the under band having a larger elastic tension than a bottom portion of the under band during use. The support bra may also define relaxed elastic zones in the cup area of the support bra where the elastic fabric is deformed by varying amounts across its surface.