| 摘要 |
A safety helmet for motorcyclists or the like including a hard shell having a lining of flexible material behind which are disposed a plurality of air cushions interconnected by means of tubes provided with pressure equalization delay devices to provide a yielding engagement by the lining with the enclosed parts of the face and skull together with air-foil-like projections on the outer surface of the shell acted upon by an airstream to reduce the weight of the helmet.
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