US Patent 7552973 Retractable headrest

A headrest for a seat back for a seat back of an automobile vehicle seat, comprising a rod, likely to be at least party driven into the seat back, and a body linked to the rod. The rod is linked to a lower portion of the body by a pivoting link and the headrest comprises means, triggered by a driving of the rod into the seat back down to a driving-in position, capable of automatically pivoting the body with respect to the rod from a use position to a non-use position.