Flexible Helmet with Inflated Space Layer for Impact Absorption
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Solution Overview
Problem
Conventional sports and military helmets rely on rigid impact-resistant shells that contribute to concussion risk due to their weight and inflexibility, which are not adequately addressed by existing designs.
Innovation Solution
A helmet construction featuring a flexible outer and inner layer with a sealed space layer capable of containing gas, gel, or liquid, eliminating the need for a rigid impact-resistant shell and distributing impact forces through a pressurized or filled space layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid impact resistant shell is used in conventional helmets, then impact resistance is improved, but concussion risk increases due to weight and inflexibility
Solution Approach 1:
The patent replaces the traditional rigid shell with a flexible outer layer made of materials like spandex or nylon that can deform under impact. This flexible shell works in conjunction with an inflatable air cushion layer to absorb impact forces, eliminating the need for heavy rigid structures while maintaining protective functionality.
Solution Approach 2:
The patent introduces an inflatable air cushion layer that can be filled with gas to create a pressurized protective barrier. This pneumatic system provides impact absorption through air pressure, replacing the need for heavy rigid materials while maintaining effective concussion protection through controlled deformation and pressure distribution.
2Strength
If a rigid impact resistant shell is used in conventional helmets, then structural strength is improved, but helmet weight increases
Solution Approach 1:
The patent employs thin flexible film layers made of high-strength materials like spandex and nylon that provide adequate structural protection without the weight of traditional rigid shells. These flexible layers maintain structural integrity through material properties rather than mass, significantly reducing helmet weight.
Solution Approach 2:
The inflatable air cushion provides structural strength through pressurized gas rather than material mass. When inflated, the air layer creates a rigid-like protective barrier that is extremely lightweight compared to traditional rigid shells, achieving structural strength without the associated weight penalty.
3Strength
If a rigid impact resistant shell is used in conventional helmets, then impact resistance is improved, but flexibility and comfort are reduced
Solution Approach 1:
The outer flexible layer is specifically designed to conform to the wearer's head shape and move with head movements, providing superior comfort and flexibility compared to rigid shells. The flexible material allows natural head motion while maintaining impact protection through controlled deformation.
Solution Approach 2:
The helmet system transitions from a static rigid structure to a dynamic flexible system that adapts to impact conditions. The flexible outer layer and inflatable air cushion work together to provide variable protection - remaining flexible during normal use for comfort, and activating protective mechanisms during impact events.
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 flexible helmet design significantly reduces the risk of concussion by distributing impact forces and reducing the overall weight, making it lighter and more effective in absorbing impacts without the mass-related injury risks of traditional helmets.
Implementation Method 1
The space layer is sealed so that it may contain the gas, gel or liquid under pressure
Implementation Method 2
The flexible helmet design significantly reduces the risk of concussion by distributing impact forces
Data Source
AI summary
The invention provides a unique construction for a sports helmet, as well as a novel approach to protecting the head of a sports player from head injury. The helmet of this invention is comprised of an outer layer comprised of a flexible material, an inner layer comprised of a flexible material, wherein the outer layer and inner layer define a space layer, wherein the space layer contains a gas, gel or liquid, and wherein the inner layer of the helmet is configured to fit around a human head.