Patent ID: 8789400

Claim:
A method of manufacturing a vehicle seat back having a vehicle seat back frame for use in multiple vehicles, the method comprising the steps of: stamping a first frame member having a generally u-shaped cross section and having a longitudinal extent, the first frame member being arranged in the seat back frame and aligned vertically and wherein the u-shaped cross section of the first frame member has a first depth at a first location and a second depth at a second location; said first depth different than said second depth; roll forming a second frame member having a generally u-shaped cross section and having a longitudinal extent, the second frame member being arranged in the seat back frame and aligned horizontally wherein the u-shaped cross section of the second frame member has a substantially constant depth; and wherein the first frame member is a common part used in multiple vehicles having a substantially constant height vehicle seat backs and the second frame member are cut to different lengths to produce seat back frames for use in multiple vehicles having different width vehicle seat backs.