PROBLEM TO BE SOLVED: To provide a grass mower, by which cut grass does not reside in a lump under a machine body even in the case where an overload work is performed to exceed a mowing quantity more excessively.SOLUTION: One or two sheets or more discharge blades 8 formed of a metal plate or a plastic plate on a running drive wheel shaft is disposed to fan a running face so that the heap of much cut grass discharged from mowing parts 2L and 2R at an overload working time is instantly swept out to the rear outer side of the machine body.COPYRIGHT: (C)2016,JPO&INPIT【課題】より刈り量を大きく超えるような過負荷作業を行った場合でも刈草が、機体下に固まりとなって滞留しない草刈機の提供。【解決手段】走行駆動輪軸に金属板またはプラスチック板で形成した排出羽根8を、1枚または2枚以上、走行面を扇ぐように設け、過負荷作業時の刈取部2L,2Rから排出される大量の刈草の山を、直ちに機体後方外側に掃き出すようにした。【選択図】図3