Brassiere Front Panel with Embedded Support Shelf Assembly

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Solution Overview

Problem

Conventional brassieres lack effective support and comfort, particularly in sports bras, due to the limitations of existing support structures and materials, which fail to provide adequate motion control and flexibility during exercise while maintaining modesty and preventing nipple show-through.

Innovation Solution

A brassiere design featuring a front panel with bra cups that include an inner layer for skin contact, an outer layer, a shaping foam layer sandwiched between, and a support shelf assembly comprising a plastic support component, non-stretch stabilizer fabric, and supportive foam layers, all molded together to create a strong, supportive, and comfortable structure that mimics the curvature of the breast underside.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional support structures are used in brassieres, then the structure is simple to manufacture, but the support and motion control during exercise are insufficient

Engineering Contradiction:
Improvesupport and motion controlVSAvoidsupport structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support structure is divided into multiple functional components: a rigid support component (e.g., plastic or metal) segmented into regions of different hardness, a foam layer segmented into different density zones, and a fabric layer segmented into stretch and non-stretch regions. Each segment performs a specific function - the harder region provides structural support while the softer region provides comfort, the foam provides cushioning and shape retention, and the fabric provides flexibility and stability. This segmentation allows the complex support structure to achieve reliable motion control during exercise.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure uses composite materials combining multiple materials with different properties: rigid plastic or metal for the support component, foam material for cushioning and shaping, and fabric material for flexibility and comfort. These composite materials work together to provide both the necessary support and motion control during exercise while maintaining comfort. The combination of hard and soft materials, structured and unstructured materials, creates a multi-functional support system that addresses the reliability requirement.

Inventive Principle:
Principle #40Composite materials

2Reliability

If multiple layers and support components are added to prevent nipple show-through and provide support, then the support and modesty are improved, but the bulk and weight increase

Engineering Contradiction:
Improvemodesty and supportVSAvoidbrassiere weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The support structure applies local quality by positioning different materials and densities in specific locations where they are most needed. The rigid support component is placed at the lower periphery where structural support is critical for preventing nipple show-through. The foam layer is positioned to provide cushioning in areas requiring modesty. The fabric layer is placed to provide flexibility and stability. This localized placement of materials with appropriate properties provides the necessary modesty and support without adding bulk and weight throughout the entire brassiere.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The support structure uses partial action by concentrating the support and modesty-providing functions in specific regions rather than uniformly throughout the entire brassiere. The harder region of the support component and the foam layer are positioned to provide sufficient support and prevent nipple show-through in the critical areas, without excessive material throughout the entire garment. This partial application of support structures achieves the modesty and support requirements while minimizing overall weight.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If a harder support component is used to provide structural support, then the support is improved, but the comfort and flexibility decrease

Engineering Contradiction:
Improvestructural supportVSAvoidflexibility and comfort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The support component is designed with local quality by creating regions of different hardness within the same component. The first region has a harder polymer material to provide structural support and maintain the shape of the breast cup, while the second region has a softer polymer material to provide comfort and flexibility where it contacts the breast. This regional variation in hardness allows the single support component to simultaneously provide both structural support and comfort, resolving the contradiction between support and flexibility.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The support structure uses composite materials by combining the harder polymer material region and the softer polymer material region within the same support component. Additionally, the foam layer with its cushioning properties and the fabric layer with its flexibility are combined with the rigid support component. This composite structure allows the hard support component to provide structural support while the softer materials provide comfort and flexibility, achieving both structural support and ease of operation.

Inventive Principle:
Principle #40Composite materials

4Reliability

If support components are embedded within the bra cups, then the structural integrity and comfort are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvestructural integrityVSAvoidmanufacturing process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The support structure merges multiple components - the rigid support component, the foam layer, and the fabric layer - into a single integrated molded structure. This merging is achieved through a molding process that forms all layers and components as one unified piece with interlocking features. The support component is molded with recesses that receive the foam layer, which is then covered by the fabric layer, creating a bonded composite structure. This merging provides structural integrity while the molding process enables efficient manufacturing of the integrated assembly.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support component is molded in advance with predetermined recesses and attachment features designed to receive and secure the foam layer and fabric layer. This preliminary action of pre-forming the support component with integration features simplifies the subsequent assembly process, as the components are designed to fit together in a predetermined manner during the molding process, reducing manufacturing complexity despite the integrated structure.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11172711B2Brassiere and front panel for brassiere
Publication Date: 2021.11.16 MAST IND FAR EAST
  • US11172711B2 patent drawing
  • US11172711B2 patent drawing
  • US11172711B2 patent drawing

AI summary

A brassiere includes bra cups holding a wearer's breasts. A shaping foam layer is sandwiched between outer and inner layers of each bra cup and extends from a lower to an upper edge of each cup. A support shelf assembly spans across a lower portion of each bra cup and includes a support component located proximate the lower edge of the cups, a non-stretch stabilizer fabric layer spanning between both cups and along a full length of the support component, and a supportive foam layer spanning between both cups and along the support component. The inner, outer, shaping foam, stabilizer fabric, and supportive foam layers span across a center gore that connects the bra cups to form a front panel of the brassiere. The support shelf assembly is molded between the inner layer and the shaping foam layer and is an embedded, integral part of the front panel.