Face Airbag Helmet for Direct Impact Protection
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Solution Overview
Problem
Traditional bicycle helmets provide inadequate protection for the face in accidents where the rider hits an obstacle directly with their face, leading to severe injuries such as diffuse brain injuries, basilar skull fractures, and facial fractures.
Innovation Solution
A protection device featuring an inflatable airbag that covers at least a part of the face, redistributing and redirecting impact force and energy to provide direct protection. The airbag can cover substantially the whole face and is designed to deploy from the forehead area downwards, ensuring it does not block the rider's sight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional helmet is used to protect the head, then the upper and rear parts of the head are protected, but the face remains vulnerable to direct impact injuries
Solution Approach 1:
The protection device is segmented into distinct functional zones: the traditional helmet protects the upper and rear head, while the separately deployable airbag specifically protects the face. This segmentation allows each component to address specific vulnerability areas without interfering with the other's function.
Solution Approach 2:
The airbag acts as an intermediary protective element between the face and external obstacles. When deployed, it creates a cushioning barrier that absorbs and redistributes impact forces, preventing direct contact between the face and harmful objects while working in conjunction with the helmet.
2Reliability
If the airbag covers the whole face to maximize protection, then facial protection is improved, but the rider's sight may be blocked
Solution Approach 1:
The airbag is designed with spatially varying properties: it provides maximum coverage and cushioning over the facial areas most vulnerable to impact (cheeks, nose, chin), while deliberately leaving the eye region exposed or using transparent materials in the eye area to maintain visual acuity. This local differentiation of protective quality resolves the contradiction between comprehensive protection and sight preservation.
3Illumination intensity
If a see-through area is added to the airbag to maintain sight, then vision is preserved, but the protection structure becomes more complex
Solution Approach 1:
The see-through area is integrated into the airbag structure as a unified component rather than a separate attachment. The transparent or mesh material is incorporated during the airbag manufacturing process, creating a single-piece structure that combines protective cushioning with visual transparency, thereby minimizing additional 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 airbag effectively protects the face by distributing impact forces, reducing the risk of severe injuries from direct facial impacts during accidents, while also ensuring unobstructed vision for the rider.
Implementation Method 1
an airbag which has an outer skin (16, 61) enclosing a gas space (26)
Implementation Method 2
gives a direct protection for the face by re-distributing and redirecting the impact force and energy
Data Source
AI summary
A protection device for the head of a human comprising an airbag having an outer skin enclosing a gas space. The inflated airbag of this protection device covers at least a part of the face of said human.