PROBLEM TO BE SOLVED: To solve a problem that in a working machine equipped with a foot-operated shift pedal, it is difficult to secure satisfactory operation accuracy according to farm field conditions, crop conditions, etc. if a moving speed of a travelling machine body is increased since, by doing so, a driving speed of a working part is also increased proportionally.SOLUTION: A working vehicle includes a stopper member 115 for regulating an operation range of a transmission member 75 for performing a speed-change operation of a transmission case 16 in conjunction with a shift pedal 41, a speed setting operation unit 44 for switching regulation positions SH, SM, and SL of the stopper member 115, and a working clutch operation unit 46 for performing on/off operations for a working clutch that engages/disengages the power transmission to a working part 2. The regulation positions of the stopper member 115 are switched to an upper limit moving speed of a travelling machine body 1 set by the speed setting operation unit 44, or an upper limit moving speed of the travelling machine body 1 when an on-operation is performed for the working clutch operation unit 46, whichever is slower.SELECTED DRAWING: Figure 13COPYRIGHT: (C)2017,JPO&INPIT【課題】足踏み式の変速ペダルを備える作業車両において、走行機体の移動速度を増大させると、作業部の駆動速度も比例して増大するため、圃場条件や作物条件等に応じた良好な作業精度を確保し難いという問題を解消する。【解決手段】本願発明の作業車両は、変速ペダル41に連動してミッションケース16を変速作動させる伝動部材75の動作範囲を規制するストッパー部材115と、ストッパー部材115の規制位置SH,SM,SLを切換操作する速度設定操作具44と、作業部2への動力伝達を継断する作業クラッチを入り切り操作する作業クラッチ操作具46とを備える。速度設定操作具44で設定した走行機体1の上限移動速度と、作業クラッチ操作具46を入り操作した場合の走行機体1の上限移動速度とのうち、いずれか遅い方に合わせて、ストッパー部材115の規制位置を切り換えるように構成する。【選択図】図13
