PROBLEM TO BE SOLVED: To provide a mower with vertical struts in which the interference with a link mechanism is avoided and the height of the vertical struts can be lowered as needed.SOLUTION: A riding mower includes: a pair of right and left vertical struts 3 extending upward at intervals in the machine body transverse direction, and having a base end 3b and a free end 3a fixed to a machine body frame a connection part 3A formed in the free end 3a an upper side unit 30 disposed between the inside surfaces facing each other in the free end 3a, and swingably connected to the connection part 3A in the circumference of a horizontal shaft core P1 between an extension swinging position and a retracting swinging position and a link mechanism 4 connected to each vertical strut 3 at a position lower than the connection part 3A, and holding a grass catcher 5.COPYRIGHT: (C)2015,JPO&INPIT【課題】リンク機構との干渉を避けるとともに、必要に応じて縦支柱の高さを低くすることができる縦支柱を備えた草刈機。【解決手段】乗用草刈機は、機体横断方向に間隔をあけて上方に延びるとともに機体フレームに固定された基端部3bと自由端部3aとを有する左右一対の縦支柱3と、自由端部3aに形成された連結部3Aと、自由端部3aの互いに向き合った内側面の間に配置されるとともに、伸張揺動位置と退避揺動位置との間を横軸芯P1周りで揺動可能に連結部3Aに連結される上側ユニット30と、連結部3Aより下方の位置で各縦支柱3に連結されるともに集草容器5を保持するリンク機構4とを備えている。【選択図】図1
