Forestry Helmet Internal Ear Protection Mounting
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Solution Overview
Problem
Existing protective helmets for forestry workers face issues with improved shock absorption and the risk of getting caught on obstacles due to external accessories like face and ear protection, which can lead to encumbrance or removal during use.
Innovation Solution
The helmet design incorporates internal mounting devices for ear and face protection, with supporting arms acting as spacers between the interior fitting subassembly and the helmet shell, providing clearance and allowing these accessories to be pivoted inward, reducing external engagement points and enhancing shock absorption by distributing external forces through deformation of the helmet shell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If face and ear protection are mounted on the outside of the helmet shell, then protective function is improved, but the risk of getting caught on obstacles increases
Solution Approach 1:
The face and ear protection are mounted inside the helmet shell rather than on the outside, nesting the protective accessories within the helmet's internal volume. This eliminates external protrusions that could catch on obstacles while maintaining the protective function of the accessories.
Solution Approach 2:
Instead of mounting the protective accessories on the outside of the helmet as conventional designs do, the invention inverts the mounting location to the inside of the helmet shell, thereby eliminating the harmful external protrusions while preserving protection.
2Adaptability or versatility
If supporting arms are made long to provide clearance for accessories, then adaptability is improved, but device complexity increases
Solution Approach 1:
The supporting arms are designed as elastically deformable elements that can dynamically adjust their position and length. When accessories are mounted or when external forces are applied, the supporting arms flex to provide the necessary clearance without requiring complex adjustable mechanisms.
Solution Approach 2:
The supporting arms utilize elastic deformation to change their effective length and position parameters in response to mounting requirements and external forces, providing adaptive clearance without mechanical adjustment mechanisms.
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 design reduces the risk of the helmet getting caught on obstacles and improves shock absorption by minimizing the force transmitted to the wearer's head, providing enhanced safety and usability in forestry and similar environments.
Implementation Method 1
providing enhanced shock absorption by distributing external forces through deformation of the helmet shell
Data Source
AI summary
A protective helmet has a helmet shell and with an interior fitting subassembly having at least one supporting cage, a head band and a neck band. Three supporting arms can serve to fasten the subassembly to the helmet shell with a spacing. A clearance can thus be provided between the interior fitting subassembly and the helmet shell for receiving ear protection capsules and supporting brackets of an ear protection and of other helmet accessories. When not in use, the ear protection can be pivoted under the helmet shell. The protective helmet therefore does not provide any engagement possibilities for obstacles such as branches and the like. The supporting arms can partially transmit a force acting on the helmet from above back into the helmet shell in order to elastically deform the latter. The helmet therefore has an improved shock absorption capability.