Abstract: A vehicle seat frame includes a seat cushion frame, left and right links, a connection member, left and right slide rails, and left and right risers. The seat cushion frame includes left and right side frames. The left and right links each have a one end portion connected to respective front portions of the left and right side frames. The connection member connects the left and right links together in the seat left-right direction. The left and right slide rails are disposed below the left and right side frames and are attached to a floor section of the vehicle. The left and right risers are respectively attached to the left and right slide rails, are connected to respective other end portions of the left and right links, and are configured to be impacted by the connection member under load from the occupant during a head-on collision of the vehicle.

Abstract: In a vehicle seat frame, a connection member that connects left and right links together in a seat left-right direction is disposed below a rear portion of a cushion pan included in a seat cushion frame. A sloped surface sloped with a downward gradient toward a seat rear side is formed at a lower surface of the rear portion of the cushion pan. The sloped surface of the cushion pan slides in a seat rearward and diagonally downward direction relative to the connection member when the cushion pan deforms in a seat downward direction under load from the occupant during a head-on collision of the vehicle.

Abstract: A seat cushion frame configuring framework of a seat cushion for an occupant of a vehicle to sit on, and including left and right side frames, a cushion pan, and a reinforcement member. The left and right side frames are disposed at left and right side portions of the seat cushion. The cushion pan connects upper end portions of front portions of the left and right side frames together in a seat left-right direction. The reinforcement member includes the left and right reinforcement portions respective affixed to the seat left-right direction sides of the rear end portion of the cushion pan.

Abstract: A vehicle seat frame includes a seat cushion frame, left and right links, a connection member, left and right slide rails, and left and right risers. The seat cushion frame includes left and right side frames. The left and right links each have a one end portion connected to respective front portions of the left and right side frames. The connection member connects the left and right links together in the seat left-right direction. The left and right slide rails are disposed below the left and right side frames and are attached to a floor section of the vehicle. The left and right risers are respectively attached to the left and right slide rails, are connected to respective other end portions of the left and right links, and are configured to be impacted by the connection member under load from the occupant during a head-on collision of the vehicle.

Abstract: In a vehicle seat frame, a connection member that connects left and right links together in a seat left-right direction is disposed below a rear portion of a cushion pan included in a seat cushion frame. A sloped surface sloped with a downward gradient toward a seat rear side is formed at a lower surface of the rear portion of the cushion pan. The sloped surface of the cushion pan slides in a seat rearward and diagonally downward direction relative to the connection member when the cushion pan deforms in a seat downward direction under load from the occupant during a head-on collision of the vehicle.

Abstract: A seat cushion frame configuring a framework of a seat cushion for an occupant of a vehicle to sit on and including left and right side frames and a cushion pan. The left and right side frames are disposed at left and right side portions of the seat cushion. The cushion pan connects upper end portions of front portions of the left and right side frames together in a seat left-right direction, and is weakened locally at a weakened portion provided at a seat left-right direction center of a rear end portion of the cushion pan.