There are provided a forward/reverse switchover lever pivotally operably about, as a pivotal center, a position which is inwardly of an outer periphery of a steering wheel and laterally outer side of vehicle body of a rotational axis of the steering wheel as seen in a direction along the rotational axis and a pivotal support shaft pivotally supporting the forward/reverse switchover lever at a position lower than the steering wheel such that a pivotal end of the forward/reverse switchover lever projects to the laterally outer side beyond the outer periphery of the steering wheel.