Patent ID: 6840560

Claim:
A vehicular seat assembly comprising: a seat portion; a backrest portion; a headrest assembly having a headrest movably coupled to the backrest portion; and a mechanical linkage coupled to the headrest assembly and to a vehicle body, the mechanical linkage including: a pivot member coupled to the headrest and rotatably mounted to the backrest portion; a first arm extending from the pivot member and having a first end; and a linkage member pivotally connected to the first end of the first arm and connectable to a portion of the vehicle body; wherein the mechanical linkage transmits a force from the vehicle body to the headrest assembly to move the headrest assembly from a first position to a second head reception position in response to a vehicle impact such that rearward motion of the backrest portion relative to the portion of the vehicle body applies a moment to the pivot member, the moment urging the headrest toward the second head reception position.