| 摘要 |
A rotary blade for a rotary mower that provides an equivalent cut with a substantial reduction in necessary driving power, and a method of implementing the same to reduce the necessary driving power of a preexisting mower. The rotary blade includes a support arm fixedly disposed symmetrically about a rotary drive shaft, at a height sufficient to avoid contact with vegetation cut by the blade, such that the rotary drive shaft rotates the support arm about an axis. The rotary blade also includes several cutting elements attached to the support arm which have respective longitudinal axes that project downward from the support arm to a predetermined distance such that the cutting elements are positioned to avoid contact with the ground.
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