| 摘要 |
In a brushcutter for cutting lawn, grass, weeds and the like, a blade fixing device which can prevent a blade driven by an engine and rotating at a high speed from being severely damaged due to stone or other obstacles and can reduce the load of the engine, by fixedly installing the blade on a drive shaft with a compressive force of a spring. In the brushcutter having an engine mounted on a main body provided with a plurality of wheels mounted thereon, and a clutch and a blade mounted on the drive shaft of the engine, an adaptor is fittingly fixed into the drive shaft rotatably driven by the engine. A holder is disposed on the lower end of the adaptor and is coupled to the adaptor and the drive shaft by means of a fixing bolt. A blade is fitted into the periphery of the holder to be rotatably coupled thereto. Also, a spring is fittingly inserted between the adaptor and the holder and is mounted so as to compressively contact the blade.
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