An apparatus may include a pedal pad located on a front lower side of a driver seat so as to be depressed by a driver, a first hinge pivotally coupling the pedal pad to a pedal bracket fixedly mounted to the front lower side of the driver seat, and a second hinge having an elastically-operated articulated structure and mounted to the pedal bracket in such a manner as to be connected to the pedal pad, the second hinge being spaced apart from the first hinge.