PROBLEM TO BE SOLVED: To suppress deterioration of working efficiency.SOLUTION: A working vehicle comprises: a traveling vehicle body； a work machine attached to the rear part of the traveling vehicle body； a controller controlling lifting/lowering of the work machine； a rear sensor which is installed at the rear part of the travelling vehicle body and detects an object present behind the travelling vehicle body； a positioning device measuring the position of the traveling vehicle body； and manual specifying means of the height of the work machine by which the height of the work machine is specified and the work machine is lifted to the specified height with manual operations. The controller includes an autonomic operation mode in which a planned travel route of the travelling vehicle body is stored, and an autonomic travel is performed along the stored planned travel route to carry out the work. The controller lifts the work machine, stores the height at which the rear sensor detects the work machine as a restriction height, and restricts lift of the work machine during the work so that the height of the work machine is the restriction height or lower. When the work machine is lifted at a position higher than the restriction height by the manual specifying means of the height of the work machine, the controller lifts the work machine at the specified height and stops detection of the rear sensor.SELECTED DRAWING: Figure 11COPYRIGHT: (C)2020,JPO&INPIT【課題】作業効率の低下を抑えること。【解決手段】実施形態に係る作業車両は、走行車体と、走行車体の後部に装着される作業機と、作業機の昇降を制御する制御部と、走行車体の後部に設けられ、走行車体の後方にある物体を検知する後方センサと、走行車体の位置を測定する測位装置と、作業機の高さを指定して手動操作によって作業機を指定高さに上昇させる作業機高さ手動指定手段とを備え、制御部は、走行車体の予定走行経路を記憶し、記憶した予定走行経路に沿って自律走行しつつ作業を実行させる自律運転モードを有し、作業機を上昇させるとともに後方センサが作業機を検知した高さを規制高さとして記憶し、作業中において、作業機の高さが記憶した規制高さ以下となるよう作業機の上昇を規制し、作業機高さ手動指定手段によって規制高さ位置よりも高い位置に作業機が上昇される場合には作業機を指定高さに上昇させるとともに後方センサによる検知を中止する。【選択図】図１１
