Lightweight helmet shell and method for manufacturing the same

• Main Authors: JEONG, SANG-OK, KIM, WAN-OUK, LEE, YOUNG-KYONG
• Format: Patent
• Language: English; French; German
• Published: 21.04.2010
• Subjects: HATS; HEAD COVERINGS; HEADWEAR; HUMAN NECESSITIES; MANUFACTURING OR TRIMMING HATS OR OTHER HEAD COVERINGS

There is provided a lightweight helmet shell including 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 300G. The li...