| 摘要 |
A sports helmet with a protective fincap made up of a sturdy, flexible material and affixed thereto centrally upon the top surface of the helmet such that the fincap extends centrally, upon the helmet, anterioposteriorally from the bottom edge of the frontal brim of the helmet to the backside occipital edge of the helmet. The fincap has minimum breadth and minimum height at the loci of the bottom edge of the frontal brim and the backside occipital edge respectively with breadth and height increasing anteroposteriorly and posteroanteriorly at the same rate to a point of maximum breadth and height at the locus of the intersection of a horizontally inclined line tangent to the uppermost portion of the topside surface of the helmet and positioned perpendicular to the vertically inclined and anteroposteriorally inclined horizontal central axes of symmetry of the helmet. The fincap is coextensive with a centrally positioned fin element made up of the same sturdy, flexible material as the fincap with the fin element being characterized by the presence of a top edge extending from the locus of the bottom edge of the frontal brim of the helmet to the locus of the backside occipital edge of the helmet.
|
