Patent ID: 7322647

Claim:
A juvenile vehicle seat unit comprising a seat including a seat bottom and a backrest including a headrest support positioned to lie in spaced-apart relation to the seat bottom and a seat back interposed between the seat bottom and the headrest support, a headrest mounted for up-and-down movement on the headrest support between a lowest position located a first distance from the seat bottom and a highest position located a greater second distance from the seat bottom, and a headrest height-adjustment mechanism including an anchor retainer coupled to the headrest for movement therewith, the anchor retainer being formed to include a lowest anchor receiver associated with the highest position of the headrest and a highest anchor receiver associated with the lowest position of the headrest, and a headrest anchor mounted for movement on the headrest support between a mated position extending into one of the anchor receivers to establish a fixed elevated position of the headrest relative to the headrest support and an unmated position disengaging each of the anchor receivers to allow up-and-down movement of the headrest relative to the headrest support, and wherein the headrest support includes a vertically extending side rim and a horizontally extending upper rim and the headrest anchor is arranged to interconnect the side rim and the upper rim.