Limb Protection Layer Structure for Impact Pressure Diffusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional impact protection devices, such as helmets, rely on G-force measurements for testing, which are incomplete in determining concussion safety, as they do not account for impact pressure, leading to inadequate protection against severe injuries due to concentrated force on small areas.
Innovation Solution
A body impact protection system with a layered structure that includes angled components with a larger inner surface area than outer surface area, designed to dampen and diffuse impact forces, reducing pressure on the body by spreading the force over a larger area, thereby reducing the risk of concussion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional G-force based testing is used for helmet evaluation, then testing simplicity is maintained, but injury protection effectiveness is insufficient because impact pressure is not accounted for
Solution Approach 1:
The patent changes the evaluation parameter from G-force to impact pressure (force per unit area). This allows for more accurate assessment of injury risk by considering both the magnitude of force and the area over which it is distributed, thereby improving reliability of protection evaluation without requiring complex new testing equipment
Solution Approach 2:
The patent replaces the conventional mechanical G-force measurement approach with a pressure distribution analysis approach. By measuring force and area separately and calculating pressure, the system provides more meaningful injury risk assessment while avoiding the limitations of pure acceleration-based testing
2Object-affected harmful factors
If impact force is concentrated on a small area, then the structure remains simple, but injury risk increases due to high impact pressure
Solution Approach 1:
The patent divides the protective structure into multiple layers with different material properties. The first layer (softer material) and second layer (harder material) work together to distribute impact forces, reducing peak pressure on the head while maintaining structural integrity through layered segmentation
Solution Approach 2:
The patent uses composite material construction with at least two different materials having different hardness levels. This combination allows the softer outer layer to absorb and distribute impact forces while the harder inner layer provides structural support, effectively reducing impact pressure without excessive complexity
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 effectively reduces the impact pressure on the body by distributing the force across a larger area, significantly lowering the risk of injury and severity of concussions compared to conventional protection methods.
Implementation Method 1
Each of the plurality of components has an angled side wall that provides a collision angle between the impact force and the body part. The components are arranged in layers to progressively dampen and redirect the force vector
Implementation Method 2
The components dampen the impact force layer by layer, reducing both the magnitude and direction of the force transmitted to the body part
Implementation Method 3
Each of the plurality of components has an angled side wall that provides a collision angle between the impact force and the body part. The angled geometry redirects the force vector through mechanical interaction
Implementation Method 4
The components are arranged in layers where each layer has a progressively larger surface area. This geometric arrangement distributes the impact force over an increasing area, reducing pressure (force per unit area) on the protected body part
Data Source
AI summary
A body limb protection system includes an outer layer, an inner layer, and a force dampening and defusing structure. The outer layer includes a first material composition and has an exterior surface that includes a substantially planer area. The inner layer includes a second material composition and has a shape corresponding to a body limb portion. The force dampening and defusing structure is positioned between the inner layer and the outer layer. The force dampening and defusing structure has a shape corresponding to a difference between the shapes of the inner and outer layers. The force dampening and defusing structure includes a plurality of components arranged to reduce pressure on the body limb portion when a force is applied to the substantially planer area.