PROBLEM TO BE SOLVED: To provide a working vehicle provided with PTO speed reduction mechanism capable of increasing a deceleration ratio and easily obtaining the number of revolution fitted to a working machine even when the number of revolution of an output shaft of an engine is high.SOLUTION: In the cultivator 100, motive power of the output shaft 7a of the engine 7 is decelerated by the PTO speed reduction mechanism 26 and is transmitted to a cultivation device 2 through a PTO shaft 27. The PTO speed reduction mechanism 26 is provided with a speed reduction input shaft 35 arranged between the output shaft 7a and the PTO shaft 27 a belt type transmission mechanism 33 for transmitting the motive power of the output shaft 7a to the speed reduction input shaft 35 and a speed reduction gear case 34 internally installed with a speed reduction gear row 39 for decelerating the motive power of the speed reduction input shaft 35 and transmitting it to the PTO shaft 27.COPYRIGHT: (C)2009,JPO&INPIT【課題】減速比を大きくできてエンジンの出力軸の回転数が高い場合でも作業機に適合する回転数が容易に得られるPTO減速機構を備える作業車両を提供することを目的とする。【解決手段】エンジン7の出力軸7aの動力がPTO減速機構26で減速されてPTO軸27を介して耕耘装置2に伝達される耕耘機100であって、PTO減速機構26は、出力軸7aとPTO軸27との間に配設される減速入力軸35と、出力軸7aの動力を減速入力軸35に伝達するベルト式伝達機構33と、減速入力軸35の動力を減速してPTO軸27に伝達する減速ギヤ列39を内装した減速ギヤケース34と、を備える。【選択図】図1
