the backrest frame with the board 42 being generally horizontal and resting on the upper end 50 of the frame 46 of the backrest 20 or project upwards supported from the rear by the board 42 with the board being uplifted to a generally vertical on edge orientation due to relative pantographic expansion of the rear pantographic link assemblies 44 from a retracted condition the link assemblies 44 are caused to expand as the chair moves from its fully erect position fig2 to its tv position fig3 the expanded condition remains so long as the chair is in its tv position fig3 and if the chair is moved to and from its fully reclined position fig4 and does not reassume its retracted position resulting in tilting down of the headrest 54 unless and until the chair is moved from its tv position fig3 to its fully erect position fig2 although it is easily conceivable that reclining chair mechanism designers and manufacturers given the drawings of this document and the information that has been provided so far would easily be able to construct and successfully operate for its intended purpose a reclining chair having a pop up headrest in accordance with the principles of the present invention in the remainder of this detailed description some further details of the preferred embodiment.