#$%^&*AU2017201351B220180719.pdf#####LAWN MOWER ABSTRACT A lawn mower (10) comprising a cutter blade (14) rotatable about a rotation shaft (41) extending in a vertical direction; a drive source (15) configured to drive the cutter blade (14) through the rotation shaft (41); a flap (52) provided for the cutter blade (14), the flap (52) having a flap angle changeable along a horizontal line which is perpendicular to the rotation shaft (41); an actuator (60) configured to control the flap angle of the flap (52); a control unit (117) configured to control the actuator (60); and a blade switching unit (104) configured to switch the cutter blade (14) between an operation state and a stop state, wherein the control unit (117) is configured to control the actuator (60) in a manner that the flap angle of the flap (52) is increased in a case in which the control unit (117) determines that a stop switch signal has been received from the blade switching unit (104).2/17 N N 6 K N 7 K>; 2 /1 Jo' 0 CS I I / I [SN -C '-A---' N 4 1~ a: A V IE <;K=z~ z=C>; -J Qt LL