PROBLEM TO BE SOLVED: To provide a mower equipped with a cutting blade capable of exhibiting excellent sharpness for a long period of time. A mower includes a rotary shaft that rotates around a first vertical axis, a support that is attached to the rotary shaft and extends radially outward of the rotary shaft, and a second vertical axis with respect to the support. A cutting blade having a mounting portion that is swingably mounted around and a projecting portion that projects from the support body in the radial outward direction when the support body rotates, and the cutting blade has an extension of the support body. One cutting blade attached to one side of the direction, and the other cutting blade attached to the other side of the extending direction of the support body, the one cutting blade and the other cutting blade, the second vertical axis and the protruding portion. Is shorter than the distance between the first vertical axis and the second vertical axis, and the protrusion is provided at the first cutting edge portion provided at one edge in the width direction of the protrusion and at the other edge. The distance from the second cutting edge portion widens as the distance from the mounting portion increases. [Selection diagram] Fig. 5【課題】長期間にわたって優れた切れ味を発揮することができる刈刃を備えた草刈機を提供すること。【解決手段】草刈機は、第１縦軸回りに回転する回転軸と、回転軸に取り付けられ且つ回転軸の径外方向に延設された支持体と、支持体に対して第２縦軸回りに揺動可能に取り付けられた取付部と、支持体の回転時に支持体から前記径外方向に突出する突出部と、を有する刈刃と、を備え、刈刃は、支持体の延設方向の一方側に取り付けられた一方刈刃と、支持体の延設方向の他方側に取り付けられた他方刈刃と、を含み、一方刈刃及び他方刈刃は、第２縦軸と突出部の先端との距離が第１縦軸と第２縦軸との距離よりも短く、突出部は、当該突出部の幅方向の一方縁に設けられた第１刃先部と他方縁に設けられた第２刃先部との間の距離が取付部から離れるにつれて拡がっている。【選択図】図５
