Lawnmower Blade Vortex Shredding Design

The cutting blade is segmented into multiple functional zones: a primary cutting edge for the initial cut, and secondary cutting edges arranged to perform shredding cuts. This segmentation allows different parts of the blade to perform specialized functions, with the primary edge making the initial cut and subsequent edges shredding the grass into smaller pieces, thereby increasing the overall percentage of shredded grass while managing turbulence effects through spatial distribution.

The invention introduces a third cutting edge that extends from the end of the blade toward the center, creating a three-dimensional cutting pattern rather than relying solely on two parallel end edges. This dimensional addition allows the grass to be cut from multiple angles and positions, improving shredding effectiveness by attacking the grass clumps from different spatial directions and reducing the impact of turbulence on shredding efficiency.

Different regions of the cutting blade are given different functional qualities: the primary cutting edge is designed for clean cutting with a specific angle and sharpness, while the secondary cutting edges are configured for shredding with different orientations and angles. This local differentiation allows each zone to perform its specific function optimally, providing controlled shredding where the secondary edges systematically process the material cut by the primary edge, rather than having all edges perform the same function.

The primary cutting edge performs the preliminary action of cutting the grass before the secondary edges perform the shredding action. This sequential arrangement ensures that the grass is first cleanly severed and then systematically shredded by the subsequent edges, providing controlled progression from cutting to shredding rather than simultaneous random cutting from multiple edges, thereby maintaining effective control over the shredding process.