Patent attributes
A headrest support structure includes: a support member configured to support a protruding member projecting from a headrest; a bracket provided in a seatback and having an accommodation chamber in which the support member is accommodated in a tiltable manner in a front-rear direction perpendicular to a width direction of the headrest; a spring provided in the accommodation chamber and deforming in a bending manner due to tilting of the support member relative to the bracket in the front-rear direction; and a projection portion projecting, in the front-rear direction, from one of an outer surface of the support member and an inner surface of the bracket which are opposed to each other. The projection portion is provided at a position different from the spring in a regulation direction perpendicular to both the front-rear direction and the width direction of the headrest.
