Replaceable Forehead Band With Tubular Holder
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Solution Overview
Problem
Existing forehead bands in protective helmets are prone to sweat absorption, leading to potential health issues like frontal sinusitis and premature failure due to repeated moisture exposure, as they are often made of padding material without effective fixation methods.
Innovation Solution
A strip-shaped support with a sweat-absorbing overlay and tubular supporting connection pieces that non-positively or positively engage with the head band, allowing for easy attachment and detachment, enabling the forehead band to be designed as a replaceable part that can be swapped out when sweaty or worn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the forehead band is made of padding material to provide comfort and coverage, then the comfort and coverage are improved, but the reliability deteriorates due to sweat absorption leading to health issues and premature failure
Solution Approach 1:
The forehead band is divided into two functional segments: a support structure (strip-shaped support) that provides mechanical stability and a separate overlay (sweat-absorbing material) that handles moisture management. This segmentation allows each part to optimize its specific function without compromising the other, resolving the contradiction between comfort and health safety.
Solution Approach 2:
The holder with tubular supporting connection pieces acts as an intermediary mechanism between the support and the head band. It enables releasable fixation without direct adhesive contact, allowing the sweat-absorbing overlay to be separated from the support structure. This intermediary design prevents sweat from reaching the support structure, maintaining reliability while preserving comfort.
2Stability of the object's composition
If the forehead band is made as a fixed integrated component, then the structural stability is improved, but the ease of repair and replacement deteriorates
Solution Approach 1:
The forehead band is segmented into a support structure and an overlay that can be independently attached and detached. The holder with tubular supporting connection pieces provides stable fixation during use but allows for easy removal and replacement, resolving the contradiction between structural stability and ease of repair.
Solution Approach 2:
The holder design transitions from a static fixed connection to a dynamic releasable connection. The tubular supporting connection pieces can engage with the head band openings to provide stable fixation during wear, but can be easily disengaged for replacement, combining both structural stability and ease of repair.
3Strength
If the holder is positioned on the sweat-exposed side of the support, then the fixation effectiveness is improved, but the reliability deteriorates due to sweat exposure causing premature failure
Solution Approach 1:
The forehead band is segmented into a support structure with the holder and a separate sweat-absorbing overlay. The holder remains on the support structure away from direct sweat exposure, while the overlay handles moisture management. This segmentation protects the holder from sweat damage, maintaining both fixation effectiveness and reliability.
Solution Approach 2:
The sweat-absorbing overlay acts as an intermediary barrier between the sweat and the holder. It absorbs moisture before it can reach the holder structure, protecting the tubular supporting connection pieces from sweat exposure while maintaining effective fixation through the holder's engagement with the head band.
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
This solution prevents sweat absorption issues by keeping the holder dry and allows for easy replacement of the forehead band, extending its lifespan and maintaining helmet hygiene.
Implementation Method 1
coverable or covered with an overlay made of a sweat-absorbing material on at least a side facing away from the head band
Data Source
AI summary
A forehead band attaches to a head band of an interior fitting assembly of a protective helmet is described. The forehead band includes a strip-shaped support which is provided with a holder for removably fixing the forehead band to the head band. The support is covered with a sweat-absorbing overlay. The holder has tubular supporting connection pieces integrally formed on the support and designed to engage into openings of the head band. The overlay has complementary longitudinal edges and is provided with openings for releasably receiving the supporting connection pieces. The overlay is washable with or without the support. The entire forehead band is designed so that the overlay or its support or both can be readily replaced.