| 摘要 |
A ballistic helmet shell layer in which a plurality of identical fabric segments, each formed with a pointed end and an arcuate end on the locus of a circle having its center at the pointed end, first are laid flat with portions of the edges extending from the pointed ends of adjacent segments butting. After the segments are secured to each other adjacent to the pointed ends, the assembly is formed to a generally hemispherical shape with the remaining side edge portions of adjacent segments coming into butting relationship with only the arcuate edges free.
|
