Patent ID: 8562072

Claim:
A vehicular seat equipped with a headrest support to which a leg portion of a headrest is coupled and a support body that is disposed on a frame of a seatback and supports the headrest support, wherein the headrest support and the support body slidably touch each other at curved surfaces disposed on either one or both, rotation of the headrest support about an axis along a horizontal direction of the seatback with respect to the support body is guided by sliding at the curved surfaces, and movement of the headrest support in a vertical direction of the seatback with respect to the support body is suppressed by the touching at the curved surfaces, wherein the support body is formed in a cylindrical shape and is placed in a state where its axial direction is along the vertical direction of the seatback, and the headrest support is inserted inside the cylinder of the support body, and wherein the headrest support is provided with the curved surfaces, the curved surfaces including (1) an upper side curved surface that slidably touches an upper end of the support body and (2) a lower side curved surface that slidably touches a lower end of the support body.