Modified head restraint assembly for motor vehicle seats

An adjustable head restraint assembly for use with a head restraint pad that is lockably positioned with respect to a motor vehicle seatback, the assembly comprising:

• at least one post connected to and supporting the head restraint pad to permit the pad to be locked in one of several height positions in relation to the seatback, the at least one post having at least one notch;
• a tubular bushing mounted at least partially within the seatback and having an inside bore sized for receiving one of the at least one posts, the tubular bushing having a head, the head having a socket with an open outside end;
• and
• a button subassembly insertable into the open outside end for locking one of the at least one posts in relation to the tubular bushing, the button subassembly having
• a drawer having a leading face and a central portion, the central portion having an aperture through which one of the at least one posts extends;
• and
• an actuator deployed upon the leading face, the actuator being movable between a forward actuated position in which the actuator is disengaged from any notch in the post and a rearward position to which the actuator is biased, in which the actuator engages a notch in the post after the button subassembly is released;
• the actuator including:
• a saddle located adjacent to the leading face;
• a leaf spring member extending from one end of the saddle;
• and
• a stop extending from the other end of the saddle in a direction away from the leading face of the drawer.