A reactive head restraint and car seat system designed to reduce whiplash in rear-end vehicle collisions has been unveiled. The unique concept has been brought to life using linkage analysis that demonstrates how the head restraint and car seat react simultaneously when the body of the occupant begins to push against the seat back during a rear-end collision.
The head restraint adjusts itself to an elevated position and closer to the occupant’s head, while the car seat rotates rearwards in a controlled manner to limit the differential motion between the head and the torso. A combined reactive seat and head restraint system is designed to reduce the whiplash risk, in conjunction with a seat damper absorbing impact energy from the collision. It is the integration of these features that makes this concept unique and effective.