Safe cutter disc assembly for rotary lawn mower

摘要: A safe cutter disc assembly for a rotary lawn mower in which the has circular central portion and an annular outer joined by shallow vertically extending wall having plurality of radially openings. The cutting elements are form pins inserted openings, each pin preferred embodiment being formed durable plastic head, relatively stiff shank long tapering flexible tip portion, supported cantilever fashion with respect to closely underlies protects portions while tips project beyond periphery into engagement grass, bending back projection upon striking obstruction. Adjacent openings is provided backstop upstanding radial vane retreating curvature engaging providing lengthwise-distributed support associated during its backward bend. In alternate version substantially equal diameter used.