PROBLEM TO BE SOLVED: To solve the problem that a lawn mower capable of suppressing float-up of front wheels during a work is required.SOLUTION: Right and left front wheels 14 are rotatable independently around a common front wheel shaft 14A, and the structure thereof is bilaterally symmetrical. Further, an outer peripheral surface of each front wheel 14 has a cylindrical shape using the front wheel shaft 14A as a center axis. In this case, each front wheel 14 includes a front wheel body 141 constituted by including the outer peripheral surface (ground plane) having the cylindrical shape, and a weight part 142 constituted of a material different from the front wheel body 141.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】作業時における前輪の浮き上がりが抑制される芝刈機が望まれた。【解決手段】左右の前輪14は、共通の前輪軸14Aの周りで独立して回転可能とされ、その構造は左右対称とされる。また、前輪14の外周面は前輪軸14Aをその中心軸とする円筒形状とされる。ここで、各前輪14は、この円筒形状の外周面(接地面)を含んで構成される前輪本体141と、前輪本体141とは異なる材料で構成された錘部142を具備する。【選択図】図2