Lightweight helmet shell and method for manufacturing the same
AssigneesNanotech Ceramics Co., Ltd., Soyo Enterprise Inc.
InventorsSang-Ok Jeong, Wan-Ouk Kim, Young-Kyong Lee
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Abstract
A lightweight helmet shell includes an inner shell formed from a porous expanded plastic layer, and an outer shell, in which the outer shell is formed from a compressed fiber sheet having an apparent density of 0.15 to 0.7 g/cc and an impact absorbability of less than 300 G. The lightweight helmet shell has excellent breathability, is lightweight, and has improved impact absorbability.
Claims15
A lightweight helmet shell comprising an inner shell and an outer shell, wherein the outer shell includes a compressed fiber sheet having an apparent density of 0.15 to 0.7 g/cc and an impact absorbability of 50 G or more and less than 300 G, wherein the inner shell includes a porous expanded plastic layer having an apparent density of 0.005 to 0.2 g/cc.
Dependencies are inferred from the claim text.