US Patent 8083292 Seatback frame for vehicles

A seatback frame for vehicles has a lower cross member that prevents a back pad and a recliner hinge shaft from interfering with each other. The seatback frame includes a back frame and a lower cross member. The lower cross member includes a reinforcing part and a hinge-shaft cover. The back frame is hinged to a seat frame via a recliner hinge shaft. The lower cross member couples both sides of the lower end of the back frame to each other. The reinforcing part has the shape of an embossment which extends in a longitudinal direction of the lower cross member. The hinge-shaft cover is provided on the lower portion of the lower cross member, and is bent to surround the recliner hinge shaft.