Egg shaped crash helmet for motor cyclists - radius of cross section reduces towards the top of the helmet

摘要

Egg shaped crash helmet is designed to reduce the result of collisions with static objects and embodies a projecting convex front face (7) or a generl egg shape with the plan radius reducing from the lower to the upper zones. Pref. the lateral elevation presents a horizontal flat at the top (8) and this face (3) is also a convex egg shaped projection. A chin-mouth guard (7) and vizor gap (2) is illustrated and it is postulated that the top peak reduces direct spinal axial blows and tends to tilt the helmet, with advantage, forwards rather than backwards.