| 摘要 |
A lawn mower includes a cutter blade (15) in the form of an elongated member extending in opposite horizontal directions with respect to a vertical rotation shaft (16a). The cutter blade includes, on each of its longitudinally opposite end portions, a blade section (43) formed along the front edge (42), in a rotating direction of the cutter blade, of the end portion (41), and an air lift section (44) extending from the front edge while curving rearward and upward. The air lift section (44) has a vertical downward wing (47) formed integrally thereon and extending downward via a bent section (46) that is bent downward from at least a rear half portion, in the rotating direction, of an outer peripheral edge (45) of the air lift section. The bent section (46) has a radius set to gradually increase as the air lift section (44) curves rearward and upward in the rotating direction. |
