Road safety improvement by rotary or variable-geometry seat

摘要

Any impact on the vehicle triggers immediately a displacement of the seat into a sufficiently horizontal position with the occupant's pelvis held firmly against the padding. The repositioning of the seat and its occupant is instigated by signals transmitted from forward-mounted photodetectors or piezoelectric sensors at a speed exceeding that of the mechanical shock wave. The front and rear of the vehicle are lined with rubber or other highly elastic material having a large Hooke coefficient to delay the shock wave propagation after the impact.