US Patent 8136826 Power retractable rocker board

A running board assembly for a motor vehicle includes an arm adapted to be fixedly coupled to the motor vehicle. A pivot shaft extends through the arm and is rotatable relative thereto. A step is fixedly secured to the pivot shaft and is movable between a stowed position and a deployed position. A motor is operably coupled to the pivot shaft such that actuation of the motor rotates the pivot shaft relative to the arm to move the step between the stowed position and the deployed position.