| 摘要 |
The helmet comprises a protective shell 10 formed of a flexible expanded polyurethane (EPU) material which defines a cavity to receive the wearers head. The shell is foldable and the helmet further comprises a strap arrangement 11 for fastening the shell to the wearers head. The shell may comprise a plurality of different layers of EPU if different densities or compositions. The shell may comprise of a plurality of fingers extending radially from a locus 18. The fingers may be arranged to have a central finger 12 and symmetrical middle 13L/R and side fingers 14L/R either side of it. The strap arrangement may comprise of a head strap 21, side strap and/or chin strap 20. The head strap may comprise of a first and second strap member 22A/B that may pass through an X shaped retainer 23 behind the wearers head. |
