Adjustable headrest

An adjustable headrest for a vehicle seat back having an apertured mounting bracket comprising:

• a molded plastic guide adapted for insertion through the aperture of the mounting bracket and having a tubular body with a central bore therethrough, a flange adapted to overlie a seat back and having a recess opening therein communicating with the central bore, and at least one flexure finger molded integrally with the tubular body and having a free state radially contracted position in which the flexure finger projects within the central bore, and locking abutment means integral with the flexure finger and projecting therefrom;
• a support post connected to the headrest and having a necked down central portion, said support post being adapted for insertion through the central bore of the tubular guide and into engagement with the flexure finger to effect forced radial outward flexure of the flexure finger to move the locking abutment means into engagement with the mounting bracket to prevent removal of the plastic guide from the mounting bracket, said forced radial outward flexure of the flexure finger from the free state radial contracted positions causing a radial inward bias of the flexure finger to frictionally engage the support post and maintain a selected vertically adjusted position;
• and
• a retainer spring removably caged within the recess opening of the flange and adapted to seat within the necked down central portion of the support post to limit vertical adjusting movement of the headrest to a permissable range defined by the extent of the necked down central portion to prevent removal of the headrest from the seat back.