Cushion spring

A cushion spring configured to receive a load of a seated occupant by a surface of the cushion spring, the cushion spring comprising:

• a pair of formed wires configured to be bridged to a seat cushion frame in a seat front-rear direction and are arranged side by side in a seat width direction;
• and
• a resin member that is joined to the pair of formed wires, wherein
• the pair of formed wires each have a center wire and a side wire that are arranged side by side in the seat width direction and extending in the seat front-rear direction,
• the center wire and the side wire are arranged in an order from a center of the seat cushion frame to an outer side in the seat width direction, and
• the resin member includes a rear connecting portion and a pair of deflection restricting portions, the rear connecting portion extending to connect between the side wire and the center wire and between the center wires in the seat width direction in a region on a seat rear side of an ischium supporting portion of the pair of formed wires that supports an ischium of the seated occupant via a seat cushion pad, the pair of deflection restricting portions extending from the rear connecting portion in the seat front-rear direction to connect all crank-shaped portions that are formed in the side wires and bent to repeatedly folding in the seat width direction.