Patent ID: 8678505

Claim:
A seat cushion of a vehicle seat, comprising: a seat cushion frame including: a first lateral frame member having: a forward frame portion defined forwardly of the seat cushion; and a rearward frame portion defined rearwardly of the seat cushion; and a second lateral frame member having: a forward frame portion defined forwardly of the seat cushion; and a rearward frame portion defined rearwardly of the seat cushion, wherein said first and second lateral frame members are spaced apart from each other; and a bottom panel member upon which a foam padding is to be mounted, said bottom panel member having peripheral end portions fixedly welded to said seat cushion frame and being so formed as to have: a) a thigh support area defined in a forward portion of said bottom panel member which is forward of the seat cushion, said thigh support area being adapted to support thigh portions of a seat occupant who is to sit on the seat cushion, and being fixedly welded to said forward frame portion of said first lateral frame member and said forward frame portion of said second lateral frame member; b) a buttocks support area defined in a rearward portion of said bottom panel member which is rearward of the seat cushion, said buttocks support area being adapted to support a buttocks portion of said seat occupant; and c) a rearward end area formed continuously from said buttocks support area, said rearward end area being fixedly connected with said rearward frame portion of said first lateral frame member and said rearward frame portion of said second lateral frame member, wherein said buttocks support area is disposed among said rearward frame portion of said first lateral frame member, said rearward frame portion of said second lateral frame member and said thigh support area, wherein said buttocks support area has a resiliently deformable area defined therein, said resiliently deformable area having a center therein, wherein a plurality of beads are defined in said resiliently deformable area, said plurality of beads including a first set of bead portions and a second set of bead portions, and wherein said first and second sets of bead portions are disposed on opposite sides of said center of the resiliently deformable area and extend in a direction forwardly and rearwardly of said seat cushion frame, thereby allowing the resiliently deformable area to be resiliently deformable and displaceable vertically, via said first and second sets of bead portions, relative to said seat cushion frame.