| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary blade of a mowing machine with an engine in which the rotary blade enables left rotation and also right rotation, and even if the rotary blade hits a leg of people, the rotary blade may not cause a cutting accident of cutting legs and the fatal accident.SOLUTION: A mower blade of a rotary blade is placed in the inside of a rotating plate from an outer circumference of the rotating plate, and blades are added to both sides of the mower blade and a guard is attached to the tip of the mower blade. When the rotary blade rotates, the guard attached on the tip of the mower blade rotates and is turned around an outer circumference of the rotary blade. Even if a leg hits the rotary blade, the guard bounces the leg and prevents the leg from hitting the blade attached to the mower blade. The guard is attached to the tip of the mower blade, and thereby the blades can be attached on both sides of the mower blade. Accordingly, the rotary blade becomes to have the left rotation and also the right rotation, and thereby the rotary blade can be easily and quickly reversed by operating a rotary lever of the mowing machine with the engine.</p> |
