Helmet Interior Buffer Structure for Sliding Impact Protection
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Solution Overview
Problem
Existing helmet interior materials struggle to provide both wearing comfort and effective head protection during accidents, particularly for users with varying head shapes and sizes, and fail to minimize direct contact and frictional forces during impacts.
Innovation Solution
The interior material features a central buffer member and outer buffer members with protrusions that induce sliding and minimize direct contact, using materials with varying heights, surface areas, and configurations to enhance comfort and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional interior material is used, then the structure is simple, but the wearing comfort and head protection effectiveness are insufficient
Solution Approach 1:
The interior material is divided into multiple buffer parts (first buffer part, second buffer part, third buffer part) with different structures and functions. Each buffer part is further segmented into protrusions and recesses, creating a complex multi-component system that provides both comfort and protection while managing impact forces through distributed structural elements
Solution Approach 2:
Different regions of the interior material are designed with locally optimized properties: the first buffer part has protrusions for comfort, the second buffer part has varying thickness for impact absorption, and the third buffer part has a specific geometric configuration for force distribution. This local differentiation allows each region to perform its specific function optimally
2Object-affected harmful factors
If the interior material contacts the head directly, then the structure is simple, but the frictional forces during accidents increase head injury risk
Solution Approach 1:
The buffer parts are designed with protrusions and recesses that create a dynamic interface between the helmet interior and the user's head. During normal wear, the protrusions provide stable contact points, but during impact, the complex geometry allows the material to deform and slide, reducing frictional forces while maintaining protective function
Solution Approach 2:
The multiple buffer parts with protrusions and recesses act as an intermediary layer between the head and external impact forces. This complex intermediate structure facilitates controlled sliding and force distribution, mediating the interaction between the head and impact while reducing harmful frictional forces
3Adaptability or versatility
If various head shapes and sizes are considered, then wearing comfort improves, but the interior material design becomes more complex
Solution Approach 1:
The interior material design incorporates multiple buffer parts with different geometric configurations that can universally accommodate various head shapes and sizes. The first buffer part with protrusions provides comfort for different head contours, while the second and third buffer parts with varying thicknesses and configurations adapt to different impact scenarios and head geometries, making the design universally applicable
Solution Approach 2:
The buffer parts are designed with variable parameters including different thicknesses, protrusion heights, and geometric configurations. These parameter variations allow the interior material to adapt to different head shapes and sizes while maintaining protective function, enabling a single design to serve multiple user types
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 solution provides enhanced wearing comfort and reduces the transmission of external forces to the head, minimizing injuries during accidents by promoting sliding and reducing friction.
Implementation Method 1
a plurality of buffer parts protruding from the interior material body... reduces the transmission of external forces to the head
Implementation Method 2
promoting sliding and reducing friction
Data Source
AI summary
An interior material for a helmet according to an embodiment of the present disclosure includes an interior material body and a plurality of buffer parts protruding from the interior material body.