This article relates to a complementary effect can be obtained in effect, a combination of nylon and the contrivance and day in accordance with the combined position and advantages coming from the contrivance of the present relates to a blade for a portable lawn mower. The contrivance is a simple and efficient also in the production and use as an implementation of the two functions of the blade to be mounted on a portable lawn mower on one wing. One wing is rhombic, and the days are rotary blade tip is to cut the grass, rear end four days of work rod itself, as well as the day to push down the air to float the structure up, crisscross pattern to get a big flotation more the sweet. A result, the type of work the improvements brought by the bakkil. And this contrivance this chapter soenal by being combined with existing Nylon day. Cons (fast cutting with the cause of the accident occurrence, etc.) and Chapter Nylon day, shortcomings are the advantages in (cutting lack for performing safe operations and burly pool) Stay as things dwaetgo complementary to the downside, two days turns made possible without the work of a variety of full-day replacement. This contrivance to see in the future is also an equal footing with nylon few days because the role of this contrivance used to maximize the ability to work as a combination of the two days is called "propeller me." This article is a combination of nylon and propeller day and day of the structure, which comes from the combined effect - reduction of working fatigue, ease of operation, the invention of the lawn mower day that increases working speed, amount of work to ensure the safety of the work day, etc. and It relates to a combination of.이 글은 휴대용 예초기의 칼날에 관한 것으로 본 고안품의 형태에서 오는 잇점과 결합위치에 따른 효과, 본 고안품과 나일론 날과의 결합에서 얻을 수 있는 상호보완적인 효과에 관한 것이다.본 고안품은 휴대용 예초기에 장착되는 칼날의 두가지 기능을 하나의 날개에 구현한 것으로 제작 및 사용에 있어서도 간편하고 효율적이다. 하나의 날개는 마름모형이고 날이 회전하면서 날 선단은 풀을 자르고, 후단은 공기를 아래로 밀어 이 날 뿐만아니라 작업봉 자체를 위로 띄우는 구조로, 보다 큰 부양력을 얻기위해 십자형태로