Consisting of a drive shaft connected with the inner diameter and outer diameter of the cam at the same time using the lawn mower blade structure and its driving method and a driving method is applied to the lawn mower
More particularly, the present invention relates to a lawn mower which simultaneously uses an inner diameter and an outer diameter of a cam connected to a drive shaft, and more particularly to a lawn mowing machine, And a second upper blade rotatably connected to the first and second upper blades. The first and second upper blades are connected to the inner and outer diameters of the driving shaft by rotation of the driving shaft. A first connecting rod connected to a first upper blade is connected to an outer diameter of a drive shaft connected to a blade driving portion of a lawn mowers and a second connecting rod connected to a second upper blade is connected to an inner diameter of the drive shaft, The first and second connecting rods connected to the inner and outer diameters of the drive shaft rotate due to the drive of the drive shaft, The first and second connecting rods are connected to the inner and outer diameters of the driving shaft by using the inner diameter and the outer diameter of the cam connected to the driving shaft for rotating the first and second upper blades, The first and second upper blades connected to the first and second connecting rods can be rotated by driving the first and second connecting rods so that the first and second connecting rods are connected to the inner and outer diameters of the drive shaft, The weight of the cutter blade can be reduced to the maximum. Therefore, even when using the cutter blade having the cutter blade which is connected to the inner and outer diameters of the drive shaft, it can be connected to the drive shaft, The present invention relates to a lawn mower to which a lawn mowing machine using an inner diameter and an outer diameter of a constructed cam at the same time is applied. 본 발명은 구동축과 연결 구성된 캠의 내경과 외경을 동시에 이용한 예초기에 관한 것으로서, 보다 상세하게는 예초기의 칼날이 구동 시, 칼날구동부의 구동축 외경과 연결되어 회전하는 제 1상부칼날과 상기 구동축의 내경과 연결되어 회전하는 제 2상부칼날이 구성되어 상기 구동축의 회전으로 인해 상기 구동축의 내, 외경에 각각 연결된 제 1, 2상부칼날이 회전하게 되는 구동축과 연결 구성된 캠의 내경과 외경을