| 摘要 |
<p>A helmet simply structured, reduced in weight, and capable of preventing rainwater from entering therein while maintaining air permeability of the helmet. A helmet body (A) has a shell body (1) formed in a hemispherical shape as a whole and having at its top a ridge (11) in the front-rear direction in a generally reverse U-shaped cross-section with a predetermined height, and also has a folded part (12) formed at a peripheral edge part of the helmet body. Vent holes (13) are symmetrically formed on both right and left sides of the shell body (1) at predetermined intervals. Around the outer periphery of the vent holes (13), on the outer surface of the shell body (1), there are formed side face projections (14a) in a linked manner and integrally with the shell body (1). In the same manner, vent holes (13) and ridge area projections (14b) are formed in the side surfaces of the ridge (11) at predetermined intervals, in a linked manner, and integrally with the ridge (11).</p> |
