Operation pedal stepping restricting device in working machine

摘要

An operation pedal 14 can be changed over between a restricted state where an oscillation lever 21 disposed at the rear of and below the operation pedal 14 interferes with upper and lower pieces 20a,20b of a restricting member 20 provided on a side of the operation pedal 14 to restrict forward and backward stepping operations of the operation pedal 14, a half-restricted state where the oscillation lever 21 interferes with only the upper piece 20a to restrict the backward stepping of the operation pedal 14, and a non-restricted state where the operation lever 21 interferes with neither the upper piece 20a nor the lower piece 20b and the forward and backward stepping operations of the operation pedal 14 are thus allowed for by oscillation of the operation lever 21. The restricting device for restricting the stepping operation of the operation pedal 14 can thus be readily changed over between the restricted state and the non-restricted state.