Patent ID: 8056973

Claim:
A vehicle seat comprising: a seat back frame having right and left side frames; a headrest for supporting a head of a seat occupant; and a back-and-forth movable body provided inside a backrest that is positioned at a rear of the seat occupant, wherein a backward movement of the back-and-forth movable body forwardly moves the headrest to support the head of the seat occupant; wherein: the back-and-forth movable body is attached to each side frame through a link member and is provided with a backward protrusion protruding backward; the backward protrusion extends laterally; and each lateral end part of the back-and-forth movable body comprises: a first extension extending forward; a second extension extending laterally outward from a front end part of the first extension; and a third extension extending in a front-to-back direction from the second extension.