INNER SHELL FOR SAFETY HELMETS AND METHOD OF PRODUCING THE SAME

Disclosed is an inner shell for safety helmets, which is massproduced and has a structure capable of efficiently absorbing and dispersing an impact, and a method of producing the same, which ensures the reduced material costs and the improved workability and productivity. The inner shell ( 10 ) incl...

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Bibliographic Details
Main Author KIM, JONG-KEE
Format Patent
LanguageEnglish
French
German
Published 07.01.2009
Subjects
HATS
HEAD COVERINGS
HEADWEAR
HUMAN NECESSITIES
MANUFACTURING OR TRIMMING HATS OR OTHER HEAD COVERINGS
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Summary:Disclosed is an inner shell for safety helmets, which is massproduced and has a structure capable of efficiently absorbing and dispersing an impact, and a method of producing the same, which ensures the reduced material costs and the improved workability and productivity. The inner shell ( 10 ) includes a liner member ( 12 ) having openings at upper and lower parts thereof, and an impact absorbing member ( 14 ) surrounding a circumference of the liner member ( 12 ). The method includes injection-molding a molten plastic resin into a predetermined shape of liner member ( 12 ), putting the molded liner member ( 12 ) in a metal mold, forming the impact absorbing member ( 14 ) using a foamed resin, including Styrofoam, a polyethylene foam, and a urethane foam, in the metal mold after the metal mold is hermetically sealed, separating the inner shell ( 10 ) from the metal mold, and finishing the inner shell ( 10 ).
Bibliography:Application Number: EP20040773920