| 摘要 |
A head restraint for a passenger of a vehicle including a seat with a seat back, a helmet pivotally secured to the seat back and having an interior for receiving a human head therein, and an inertia harness connected to the helmet for restricting relative movement of the helmet upon application of forces beyond a desired level to the vehicle. A universal joint secures the helmet to the seat back. The helmet includes a rigid outer shell, a resilient member layer affixed to an interior surface of the outer shell, a packing layer affixed to an interior surface of the resilient member layer, and a pliable layer affixed to an interior surface of the packing layer. The resilient member layer includes a plurality of springs. The packing layer includes a bubble wrap material or a plurality of randomly disposed foam elements. The pliable layer includes a layer of silicone material lined around the surface of the packing layer.
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