| 摘要 |
A helmet (10) is provided, that has a first resilient shell (12), a support structure (16,18) inside the first shell to support the first shell on the wearer's head (14), a chin strap (20), to hold the helmet in position, a deformable layer (24) on the outside of the first shell and a tough outer shell (26) on the outside of the deformable layer. The deformable layer is of a material that absorbs energy when it is deformed and returns slowly to its original shape afterwards. The helmet includes a chin bar (34) with two opposing ends (36) that are displaceable relative to the outer shell, immediately inwardly of the outer shell. The outer profile of the helmet has a plurality of generally planar surfaces (28) and the helmet has a rear strap (38) that is attachable to the chin strap and that is configured to extend around the back of the wearer's head. |
