Patent ID: 8360520

Claim:
An anti-whiplash system for use with vehicle seats, the system comprising: a head restraint adapted for coupling to the vehicle seat with the head restraint comprising, a release mechanism coupled to the head restraint for reducing a gap between an occupant's head and the head restraint during an accident, wherein the release mechanism comprises; a stationary part for mounting the head restraint to the vehicle seat with the stationary part defining an axis, and a moveable part connected pivotably about the axis of the stationary part such that rotation of the moveable part from an initial position toward an activated position about the axis creates a clearance between the movable part and the stationary part, and a wedging body rotatably coupled to the stationary part adjacent the movable part with the wedging body rotatable into the clearance between the movable part and the stationary part as the clearance is created such that the wedging body abuts against the movable part and against the stationary part within the clearance to prevent the movable part from moving back to the initial position.