Helmet Neck Cover Composite Material for Wind Noise Reduction

The patent uses a composite structure combining urethane foam (for flexibility and comfort) with mesh cloth (for wind noise reduction). The mesh cloth is integrated into the flexible cover member, creating a multi-layer composite material that simultaneously provides both flexibility and noise isolation properties that neither material could achieve alone.

The patent combines mesh cloth (for wind noise reduction) with urethane foam (for comfort and flexibility) in a composite structure. The urethane foam layer provides the necessary comfort and flexibility, while the mesh cloth layer reduces wind noise permeability, achieving both goals simultaneously.

The patent converts the harmful effect of wind noise generated by the ventilator and stabilizer into a beneficial outcome by using the mesh cloth flexible cover member to capture and redirect the wind flow. The mesh structure allows air to pass through while reducing turbulence and noise, transforming the noisy wind flow into a quieter, more controlled airflow pattern.

The patent uses a composite structure where a thin urethane foam layer (providing comfort) is combined with a mesh cloth layer (providing sound isolation). This composite approach allows the cover member to remain thin and comfortable while the mesh cloth component maintains effective sound isolation capability.