PROBLEM TO BE SOLVED: To provide a working vehicle having a travel machine frame 9 which is travel-driven with an engine 10 equipped with a fuel injection control means 22 through a continuously variable mechanism 14, an implement 2 which is liftably mounted on the travel machine frame 9 and is driven with the engine, and a hydraulic pump 17 which is driven with the engine to supply a hydraulic oil to an lifting or lowering hydraulic mechanism 5 of the implement, and capable of downsizing the hydraulic pump in a state avoiding the change of a travel speed.SOLUTION: The working vehicle increases rotation speed of the engine and operates the continuously variable mechanism so that the travel speed is not changed when the implement 2 is lifted slowly or not be lifted.COPYRIGHT: (C)2010,JPO&INPIT【課題】燃料噴射制御手段22を備えたエンジン10にて無段変速機構14を介して走行駆動される走行機体9と,これに昇降可能に装着され前記エンジンにて駆動される作業機2と,前記作業機の昇降用油圧機構5に作動油を供給するために前記エンジンにて駆動される油圧ポンプ17を備えた作業用車両において,走行速度の変化を回避した状態のもとで,,前記油圧ポンプの小型化を図る。【解決手段】前記作業機2を上昇作動しているときの速度が遅いか,又は,上昇作動しないとき,前記エンジンの回転数をアップするとともに,前記無段変速機構を,走行速度が変化しないように変速作動する。【選択図】 図4
