Velvet Sheath for Bra Wire Rings Reducing Deformation

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Solution Overview

Problem

Existing sheaths for bra wire rings cause deformation, wrinkles, and discomfort due to uneven tension and rough surfaces, affecting the comfort and fluffiness of bras.

Innovation Solution

A velvet sheath with interwoven upper and lower fabrics connected by velvet warp threads on both sides of the hollow part, forming a velvet woven grid surface that cushions tension and maintains smoothness, preventing flattening and ensuring wire ring insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional sheath for bra wire rings is used, then the wire ring can be inserted and the sheath provides basic support, but the uneven tension formed by wire ring bending leads to deformation, wrinkles, and tightness without fluffiness of the sheath

Engineering Contradiction:

Improvesupport function of sheathVSAvoiddeformation and wrinkles of sheath

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The sheath is constructed using composite materials including velvet warp threads, weft threads, and spacers that work together to provide structural support while maintaining flexibility and preventing deformation. The combination of different materials with complementary properties resolves the contradiction between support function and shape maintenance.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The sheath employs a flexible fabric structure with velvet warp threads and weft threads that can accommodate the bending of wire rings while maintaining its overall shape. The flexible construction allows the sheath to conform to the curved wire ring without developing wrinkles or tightness.

Inventive Principle:

Principle #30Flexible shells and thin films

2Shape

If the sheath is made with tight weaving to prevent deformation, then the sheath becomes smooth and maintains shape, but it causes tightness without fluffiness and reduces comfort

Engineering Contradiction:

Improvesmoothness and shape maintenanceVSAvoidtightness and discomfort to skin

Core Design Contradiction:

ShapeVSObject-affected harmful factors

Solution Approach 1:

The sheath features local variations in fabric density and structure, with velvet warp threads providing structural integrity in certain areas while maintaining openness and fluffiness in other areas. This local quality differentiation allows the sheath to maintain smoothness without causing tightness or discomfort.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The sheath incorporates porous or open fabric structures that allow breathability and reduce tightness against the skin. The porous nature of the fabric maintains shape while preventing the suffocating feeling associated with tight, non-breathable materials.

Inventive Principle:

Principle #31Porous materials

3Object-affected harmful factors

If the sheath is made loose to improve comfort and fluffiness, then the sheath becomes comfortable to wear, but it causes deformation and wrinkles when wire rings are inserted

Engineering Contradiction:

Improvecomfort and fluffinessVSAvoiddeformation and wrinkles

Core Design Contradiction:

Object-affected harmful factorsVSShape

Solution Approach 1:

The sheath is segmented into different functional zones with varying densities and structures. Certain segments provide structural support to prevent deformation while other segments maintain looseness and fluffiness for comfort. This segmentation allows both contradictory requirements to be satisfied in different parts of the same sheath.

Inventive Principle:

Principle #1Segmentation

4Object-affected harmful factors

If the both ends of the hollow part of the sheath are made smooth, then comfort is improved, but the structural integrity and support function may be compromised

Engineering Contradiction:

Improvecomfort at ends of sheathVSAvoidstructural integrity

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The ends of the sheath are constructed with flexible fabric that can be smoothed to provide comfort while the underlying structural framework maintains integrity. The flexible nature of the fabric allows it to conform smoothly without compromising the structural support provided by the woven construction.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS10624396B2Velvet sheath for bra wire rings and bra using the same

Publication Date: 2020.04.21 KAIPING KELIAN KNITTERS DEV

AI summary

A velvet sheath for bra wire rings and a bra using the velvet sheath, the sheath comprises a main body holding a hollow part and formed by an upper fabric and a lower fabric, both sides of the hollow part of main body interweave and connect the upper fabric and the lower fabric to form velvet woven grid surfaces by velvet warp threads crossed up and down, respectively, and the sheath is sewn under the bra cup. The velvet sheath for bra wire rings according to the present invention will not appear rough surface and uneven elasticity caused by wire rings pulling the sheath after wire rings inserted into the curvedly sewn sheath or when users wear such bras later, and may ameliorate deformation, wrinkles and tightness of the sheath caused by the uneven tension formed by bending of wire rings and can cushion the compression induced by bending of wire rings without affecting the effect of the sheath on fixing the wire rings.