Patent ID: 7731292
Filing Date: 2010-06-08
Classification: B60N

Abstract:
1. A seat back frame for a vehicle comprising: a frame side plate portion, which is disposed in a transverse direction side portion at a seat back and generally includes a plane which is parallel to a seat front-back direction; and flange portions extending toward a seat back inner side from a front end portion and a rear end portion of the frame side plate portion respectively, wherein at least one of the front and rear flange portions includes a first extending portion bent at an obtuse angle from the frame side plate portion toward the seat back inner side, and extending to a vicinity of a central portion of the flange portion, and a second extending portion bent and extending from the first extending portion toward the seat back inner side, wherein the at least one of the front and rear flange portions extends such that an angle formed by the frame side plate portion and an imaginary line, which connects a distal end portion of the flange portion and a bent inner side portion from the frame side plate portion toward the flange portion, is an obtuse angle, and the second extending portion is bent so as to form an obtuse angle toward the seat back inner side with respect to the first extending portion.