Patent ID: 9010854
Filing Date: 2015-04-21
Classification: B60N

Abstract:
1. A seat cushion frame structure of a seat for a vehicle comprises a seat cushion frame structure a rear end of which is connected to a lower end of a seat back frame structure in such a way that the seat back frame structure can be inclined relative to the seat cushion frame structure, said seat cushion frame structure includes a pair of side frames spaced apart from each other in the widthwise direction of the vehicle each of which extends in a longitudinal direction of the vehicle, and an oblique monolithic strip made of high tension steel on at least one of said pair of side frames, an upper end of which is fixed to a side portion of said at least one of pair of side frames and a lower end of which is fixed to said seat cushion frame structure at a position forward of said upper end, said oblique monolithic strip includes a characteristic such that when a load toward a rear side of the vehicle is loaded on said seat cushion frame structure, it has a tension force exerted on said seat cushion frame structure so as to alleviate a moment acting on said seat cushion frame structure caused by said load, said oblique monolithic strip being arranged in such a way that one of its strip surfaces is oriented to face upward, its cross section is a rectangle long in a lateral direction, and said oblique monolithic strip includes at each of its upper and lower ends a wound portion which is wound in a loop manner in such a way that said one strip surface is oriented to be inward, whereby said oblique monolithic strip is fixed on said seat cushion frame structure via said wound portions with its side surface facing said side frame and said oblique monolithic strip includes portions of its strip surfaces that overlap with each other and form an overlapping portion near said wound portions of the respective upper and lower ends of the oblique monolithic strip and the portions of the strip surface that overlap are fixed to each other.