Patent ID: 7128373

Claim:
An automotive seatback system, comprising: a first panel having a main wall; a plurality of primary planar ribs positioned upon the first panel; a plurality of attachment locations for attaching the first panel to an automotive vehicle; and a plurality of channel forming ribs extending along the main wall of the first panel, which provide vertical and torsional stiffness to the main wall wherein: i. the channel forming ribs form tubular structures in conjunction with the main wall; ii. the first panel, primary ribs and the channel forming ribs are one integrally molded plastic piece; iii. one or more of the channel forming ribs along with one or more of the tubular structures extend horizontally substantially entirely from a first side of the first panel to a second side of the first panel, the first side opposite the second sides; and iv. one or more of the channel forming ribs extend substantially continuously from a lower location to an upper location of the first panel; wherein the seatback is capable of withstanding without rupture at least about 11,000 Newtons.