PROBLEM TO BE SOLVED: To provide a mid-mower type riding lawn mower in which a mower is arranged between front wheels and rear wheels and also power can be easily transmitted to the mower from an engine at the front of a vehicle body, with the height of the vehicle body kept low.SOLUTION: The lawn mower is comprised with an engine output shaft 3 arranged at the back of an engine 27 arranged at the front of a vehicle body 1, a first transmission shaft 6a arranged diagonally rearward, viewed from the above, toward the back of the vehicle body from the engine output shaft 3 and a second transmission shaft 6b arranged along the side of a duct 22 at the rear end of the first transmission shaft, a third transmission shaft 11a to which power is transmitted via a pulley and a belt 12 arranged in a direction parallel to the second transmission shaft 6b, and a fourth transmission shaft 11b for transmitting power to blades 54 arranged at the front end of the third transmission shaft 11a, wherein the first transmission shaft 6a and the fourth transmission shaft 11b are arranged with the rear end being narrower than the front end, viewed from above.COPYRIGHT: (C)2010,JPO&INPIT【課題】前輪と後輪の間にモーアを配置して、しかもモーアに対する車体前側のエンジンからの動力伝達を無理なく行うことができ、車高も抑えたミッドモーア型の乗用芝刈機を提供すること。【解決手段】 車体1の前側に配置したエンジン27の後方側にエンジン出力軸3を設け、出力軸3から車体後方に向けて平面視で斜め後ろ向きに第1伝動軸6aとその後端にダクト22の側方に沿って配置した第2伝動軸6bを配置し、第2伝動軸6bと平行な方向にプーリ、ベルト12を介して動力伝達される第3伝動軸11aを配置し、第3伝動軸11aの前端にブレード54に動力伝達する第4伝動軸11bを配置する。なお、第1伝動軸6aと第4伝動軸11bは平面視で「ハ」の字状に配置する。【選択図】図2
