Patent ID: 7172251

Claim:
A frame structure for an automobile seat, comprising: a frame to be vertically movably mounted on a vehicle floor; a lifter for adjusting a height of the frame; and a suspension unit for absorbing vibration inputted to the frame; wherein the lifter is integrally formed with the suspension unit and comprises a torsion bar to be rotatably mounted on the vehicle floor, the torsion bar having first and second ends opposite to each other; wherein said lifter further comprises a first link mechanism, a second link mechanism, and a third link mechanism through which the torsion bar is connected to the frame, a first operating mechanism connected to the first link mechanism, and a second operating mechanism connected to the third link mechanism, wherein height adjustments of a front end portion of the frame are carried out via the first link mechanism and height adjustments of a rear end portion of the frame are carried out via a second link mechanism by operating the first operating mechanism to twist the first end of the torsion bar, and wherein weight adjustments are carried out via a third link mechanism by operating the second operating mechanism to twist the second end of the torsion bar.