Safety helmet structure - includes air ventilating means and plastic foam intermediate lining

摘要

A safety helmet structure comprises an outer shield with a helmet-like lining and an impact resistance intermediate polylone layer. The outer-shield, the helmet -like lining and the polylone layer are designed to provide respective air holes at the forehead portion as well as the back portion of the head to allow air current to enter into the inside space from the front air holes and exit through the back air holes. The air-holes of the outer shield are defined by a number of inclined spaced apart air guiding plates and the air holes of the helmet-like lining and the intermediate layer being made through perforation. Pref. the helmet-like lining is made of plastic cloth and arranged to provide a number of strip-like and elastic air bubbles communicating with each other through air tubes and gaps between the elastic air bubbles.