Composite Helmet Padding for Impact and Breathability
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Solution Overview
Problem
Current protective padding systems in helmets often cause discomfort due to pressure points and have limitations in weight, impact resistance, and breathability across varying environmental conditions.
Innovation Solution
A protective padding system comprising a flexible, resilient outer layer and a less stiff inner layer, both designed to allow fluid passage, with a hydrophilic cover to enhance comfort and moisture management, and a hook-and-loop fastening mechanism for customization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a padding system uses a dense, stiff material for impact resistance, then impact protection is improved, but comfort deteriorates due to pressure points and weight increase
Solution Approach 1:
The patent employs a composite padding system with an outer layer of flexible resilient material (such as foam or gel) and an inner layer of softer material (such as fabric or leather). This composite structure combines the impact-absorbing properties of the outer resilient layer with the comfort-providing properties of the inner soft layer, resolving the contradiction between impact resistance and comfort.
Solution Approach 2:
The patent applies different material properties to different regions of the padding system. The outer layer uses stiffer, more resilient material for impact absorption, while the inner layer uses softer, more compliant material for comfort. This local differentiation of material qualities allows simultaneous optimization of both impact protection and comfort.
2Temperature
If a padding system uses a breathable material for cooling, then breathability is improved, but moisture absorption increases leading to weight gain
Solution Approach 1:
The patent utilizes porous breathable materials for the padding system that allow air and moisture vapor to pass through, providing cooling and breathability. The porous structure enables gas permeability while maintaining a lightweight characteristic, addressing the contradiction between breathability and weight gain.
3Weight of moving object
If a padding system uses a lightweight material to reduce helmet weight, then weight is reduced, but impact protection deteriorates
Solution Approach 1:
The patent employs a composite padding system where the outer layer consists of lightweight resilient material that provides impact absorption, and the inner layer consists of softer material for comfort. This composite structure achieves adequate impact protection while maintaining overall lightweight characteristics.
4Object-affected harmful factors
If a padding system uses a non-perforated barrier layer to block moisture, then moisture protection is improved, but breathability deteriorates
Solution Approach 1:
The patent employs porous breathable materials that allow moisture vapor and air to pass through while maintaining a lightweight structure. The porous structure provides breathability and thermal regulation without requiring non-perforated barrier layers, thus avoiding the breathability-moisture blocking contradiction.
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 system provides improved comfort, impact resistance, and breathability while maintaining a low weight gain after water exposure, making it suitable for a wide range of environmental conditions.
Implementation Method 1
Each pad comprises at least one section of an outer layer of a flexible, resilient, energy absorbing material that is adapted to pass fluids therethrough, and at least one section of an inner layer... adapted to pass fluids therethrough
Implementation Method 2
a hydrophilic cover to enhance comfort and moisture management
Data Source
AI summary
The present invention provides pads and padding systems for use in protective helmets, and particularly ballistic helmets. Generally, the pad includes a first, outer layer which provides substantial impact resistance and a second, inner layer which provides cushioning and comfort. The pad does not require the use of a moisture-proof, non-perforated, encapsulating layer since both layers provide little resistance to fluid flow. The pad may also include a cover made of moisture-wicking material.