Helmet Airflow Control Member for Ventilation and Noise Reduction
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Solution Overview
Problem
Existing helmet designs face limitations in controlling airflow for improved ventilation and noise reduction while maintaining mechanical strength, impact resistance, and penetration resistance.
Innovation Solution
A helmet airflow control member with a plate-like main body and passage formation portions is integrated into the helmet shell, featuring a first peripheral portion that closes the space between the main body and shell surfaces and a second peripheral portion that defines an opening, creating passages that extend and return, enhancing airflow control and ventilation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detailed structures are added to control airflow, then ventilation performance improves, but mechanical strength and impact resistance deteriorate
Solution Approach 1:
The airflow control member is divided into multiple functional regions: a plate-like main body for structural support, peripheral portions for sealing and opening definition, and passage formation portions for airflow control. This segmentation allows each region to be optimized for its specific function while maintaining overall structural integrity.
Solution Approach 2:
The airflow control member acts as an intermediary component attached to the shell, providing detailed airflow control structures without modifying the shell itself. This mediator approach allows complex passage formations while preserving the shell's mechanical strength and impact resistance.
2Reliability
If the shell shape is changed to control airflow, then ventilation performance improves, but manufacturing complexity increases
Solution Approach 1:
The airflow control member is divided into multiple functional regions: a plate-like main body for structural support, peripheral portions for sealing and opening definition, and passage formation portions for airflow control. This segmentation allows each region to be optimized for its specific function while maintaining overall structural integrity.
Solution Approach 2:
The airflow control member acts as an intermediary component attached to the shell, providing detailed airflow control structures without modifying the shell itself. This mediator approach allows complex passage formations while preserving the shell's mechanical strength and impact resistance.
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 configuration improves ventilation efficiency, reduces noise, and maintains mechanical strength and impact resistance, providing a new control of airflow that stabilizes the helmet and enhances user experience.
Implementation Method 1
The passage formation portion defines a passage in the space, with the passage extending from the opening into the space and returning from the space to the opening
Data Source
AI summary
A helmet airflow control member includes a plate-like main body arranged on a shell and including a main body rear surface that covers part of a shell outer surface, and at least one passage formation portion arranged on the main body rear surface. A periphery of the main body rear surface includes a first peripheral portion, which is shaped in correspondence with the shell outer surface and closes a space between the main body rear surface and the shell outer surface, and a second peripheral portion, which is spaced apart from the shell outer surface and defines an opening of the space between the main body rear surface and the shell outer surface in cooperation with the shell outer surface. The passage formation portion defines a passage in the space, with the passage extending from the opening into the space and returning from the space to the opening.