Patent ID: 8888192

Claim:
A frame support structure of a vehicle seat mounted on a vehicle floor, comprising: a frame of a vehicle seat cushion that includes a horizontal frame extending in a seat width direction; and a bracket that supports the frame from below on the vehicle floor and which has a major dimension of the bracket that extends in a direction parallel to a top side of the seat cushion extending in a seat length direction, wherein the frame extends toward a first side of the vehicle seat cushion in the seat width direction to extend the seat cushion of a center seat for one person to the direction of the first side of the vehicle seat cushion; a buckle of a seat belt apparatus provided for the center seat is attached to the first side of the vehicle seat cushion; one end of the frame is connected to the first side of the vehicle seat cushion; the bracket includes a first support plate and a second support plate, which extends in a direction perpendicular to the first support plate wherein an edge of the second support plate is fixed to an edge of the first support plate on a side opposite from the first side of the vehicle seat cushion such that the first support plate and the second support plate form a general L-shape when viewed from above; and one part of a plate face of the first support plate is fixed to a front surface or a rear surface of the horizontal frame and a part of the second support plate is fixed to a lower surface of the horizontal frame, wherein the bracket includes a bottom plate connected to the vehicle floor, and the first support plate is bent upward so as to stand upright from an edge of the bottom plate and the second support plate is bent upward so as to stand upright from another edge of the bottom plate.