Uniform Density Pre-Bonded Fabric for Breathable Heavyweight Conditioning
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Solution Overview
Problem
Heavyweight garments for physical conditioning often suffer from uneven weight distribution, lack of flexibility, and poor breathability, making them uncomfortable and difficult to wear, especially for elderly or infirm individuals, and may lead to hyperthermia due to inadequate ventilation.
Innovation Solution
The development of heavyweight garments made from uniform-density, pre-bonded fabric with a moisture vapor transmission rate between 100 g/m2/day and 1,500 g/m2/day, which is breathable and flexible, allowing for even weight distribution across the garment surface without the use of metal weights, and featuring detachable sleeves or ventilation systems to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If heavyweight garments are made with high fabric density (8+ ounces per square yard), then the weight and bulk increase to provide physical conditioning load, but the garments become difficult to wear and move in
Solution Approach 1:
The patent applies parameter changes by specifying fabric with uniform density of 8 or more ounces per square yard, transforming the garment from unevenly weighted to uniformly weighted, which improves wearability while maintaining conditioning effectiveness. The MVTR parameter is also optimized to balance breathability with weight.
Solution Approach 2:
The patent applies local quality by ensuring uniform weight distribution across the entire garment surface rather than concentrating weight in specific areas. This creates consistent resistance throughout the garment, making it easier to wear while maintaining the physical conditioning effect.
2Weight of moving object
If heavyweight garments are made with high fabric density, then the weight provides conditioning benefit, but the garments lack flexibility
Solution Approach 1:
The patent changes the fabric parameter to uniform density of 8+ ounces per square yard with controlled MVTR, which maintains flexibility while providing the necessary weight for conditioning. The pre-bonded construction method preserves fabric flexibility despite the heavy weight.
3Weight of moving object
If heavyweight garments are made with high fabric density, then the weight provides conditioning load, but the garments have poor breathability leading to hyperthermia
Solution Approach 1:
The patent optimizes the MVTR parameter to a specific range that allows sufficient breathability to prevent hyperthermia while maintaining the heavy weight needed for conditioning. This parameter change enables the fabric to be both heavy and breathable.
Solution Approach 2:
The patent uses pre-bonded fabric construction that combines multiple material properties to achieve both high weight and good breathability. The composite structure allows the fabric to maintain uniform density while permitting vapor transmission.
4Weight of moving object
If heavyweight garments use non-uniform weight distribution, then the garment can be made with lighter overall weight, but the weight is unevenly distributed causing discomfort
Solution Approach 1:
The patent applies local quality by distributing weight uniformly across the entire garment surface rather than concentrating it in specific areas. This creates consistent resistance and comfort throughout, making the garment easier to wear while maintaining the conditioning effect.
Solution Approach 2:
The patent changes the weight distribution parameter from non-uniform to uniform by specifying fabric with consistent density of 8+ ounces per square yard throughout, which improves comfort while maintaining the necessary weight for conditioning.
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 garments provide a comfortable and flexible means of physical conditioning by evenly distributing weight, preventing hyperthermia through breathability, and allowing extended wear without heat-related adverse effects, suitable for various activities including walking at a moderate pace for an average male.
Implementation Method 1
The fabric is permeable to water vapor and has a moisture vapor transmission rate (MVTR) between about 100 g/m2/day and about 1,500 g/m2/day
Data Source
AI summary
In some embodiments, a heavyweight jacket includes a main body configured to fit on the torso of a wearer and sleeves that are fully detached from the main body. The sleeves advantageously facilitate putting on the heavy jacket, while providing a jacket of high weight. To form the heavyweight jacket, a pre-bonded fabric may be used. The fabric is pre-bonded and may optionally be further layered to increase the garment's weight without sacrificing flexibility or breathability. The layered fabric distributes the garment's weight evenly and ensures that the garment does not excessively restrict a wearer's freedom of movement or cause the wearer to overheat. The weight of the fabric may be increased by using a heavyweight glue to bond various layers of material together.