Abstract: A power seat drive mechanism for an automobile has a motor which drives a worm which in turn drives a worm wheel at a given speed. The worm wheel is connected to a threaded shaft which it drives to rotate. Rotation of the threaded shaft forces it through a nut which is fixed to the body of the vehicle. This drives the threaded shaft which is connected to the sliding frame of the seat longitudinally with respect to the vehicle. In order to prevent force exerted on the seat in the direction of its travel, from causing the threaded shaft to rotate faster than it is being driven and thus overrun the worm gear, a resilient governor member is included which provides a limited braking effect and tends to resist the rotation of the shaft. With this configuration, backlash in the drive mechanism is eliminated.

Abstract: A vehicular seat assembly is disclosed which comprises two seat sliders each including a lower rail secured to a vehicular floor and an upper rail sidably disposed on the lower rail; a seat frame securely mounted on the upper rails of the seat sliders; a seat cushion mounted on the seat frame; a side decorative panel attached to one lateral side of the seat frame for concealing unsightly portions; and a projection integrally formed on the side decorative panel, the projection being seated on the upper rail of one of the seat sliders.

Abstract: A seat lifter for a vehicular seat comprises spaced side base members; and front and rear lift mechanisms which are mounted on front and rear portions of the side base members for adjusting the heights of front and rear portions of a seat cushion respectively. Each lift mechanism comprises a pivot shaft extending across the side base members, brackets secured to the pivot shaft to rotate therewith, arm members pivotally connected to the brackets and connected to the seat cushion, a sector gear pivotally connected to one of the side base members and pivotally moved together with the pivot shaft, a pinion meshed with the sector gear, and a handling knob mounted on the side base member and having the pinion connected thereto.