| 主权项 |
1. A helmet pad adapted for removable attachment to an outer surface of a helmet, comprising:
a central core, the central core including a honeycombed configuration having shock wave absorbing structure encapsulated therein, the central core being fabricated from polyvinyl chloride material extruded into a honeycombed configuration wherein the honeycombed configuration includes a plurality of alternating inverted V-shaped structures having vertices in the form of thick fingers extending in opposite directions and further including thin, angled legs joining each of the fingers to the next adjacent finger; an inner layer disposed on one side of the central core, the inner layer being fabricated from a material for absorbing acoustic waves produced by the impacts on the helmet, the inner layer being fabricated from polyurethane foam material; an outer layer disposed on a side of the central core opposite the inner layer, the central core being sandwiched between the inner layer and the outer layer, the outer layer being fabricated from polypropylene material; a shell encasing the central core, the inner layer and the outer layer therein, the shell being fabricated from silicone closed-cell sponge material and having a base abutting the inner layer of foam material; and a layer of adhesive disposed on the shell base, the layer of adhesive being adapted for adhering the helmet pad to the helmet. |
