PROBLEM TO BE SOLVED: To provide a rotary blade used in a bush cutter, which improves durability and cutting performance for obtaining comfortable workability.SOLUTION: There is provided the rotary blade 1 having a plate-like rotary plate part 2 and a blade part 3 arranged on the periphery of the rotary plate part 2. The blade part 3 includes a plurality of blade-like projections 6 arranged on one plate face side or the other plate face side of the rotary plate part 2 in a standing state. The blade-like projection 6 includes: a projection body part having cutting blades 13 on ends of one side and the other side of the rotary plate part 2 in a rotation direction and a radial projecting part which is a part for connecting the projection body part with the rotary plate part 2 and for projecting to the outer side in the radial direction of the rotary plate part 2.COPYRIGHT: (C)2013,JPO&INPIT【課題】刈払機に用いられる回転刃において、耐久性、切断性を向上させ、快適な作業性を得る。【解決手段】板状の回転板部2と、この回転板部2の周縁に設けられる刃部3とを備える回転刃1であって、刃部3は、回転板部2の一方の板面側または他方の板面側に立った状態で設けられる複数の刃状突起6を有し、刃状突起6は、回転板部2の回転方向の一側および他側の端部に切断刃13を有する突起本体部と、この突起本体部と回転板部2を繋ぐ部分であり、回転板部2の径方向外側に突出する径方向突出部と、を含む。【選択図】図1
