Frame for a vehicle seat

Claim 1

A frame for use in the bottom of a vehicle seat, comprising: a main body formed of a band-like metal plate, said main body having an upper surface facing inwardly from the bottom of said vehicle seat, an outer edge of the plate extending along the longitudinal direction as well as outwardly thereof and an inner edge of the plate extending along the longitudinal direction of the plate; an upwardly bent portion extending upwardly from said outer edge of said main body in a direction vertical to said main body; a reinforcing portion having a substantially U-shaped configuration in section, said reinforcing portion being formed with one leg of the U-shaped portion comprising the inner edge of said main body; an inclined portion defined between said upwardly bent portion and the other leg of the U-shaped said reinforcing portion, said inclined portion being so sloped that it becomes higher from a lower portion of said upwardly bent portion up to an upper end of said reinforcing portion in such a manner that the inclined portion as a whole extends higher in a direction inwardly of said main body; and a plurality of cushioning springs fixedly secured at their respective ends to said upper surface of said main body.