The present invention relates to an auxiliary mechanism for a brush cutter and, more particularly, to an auxiliary mechanism for a brush cutter that is fastened to the triangular pyramid-shaped main body of the auxiliary mechanism during an operation using the brush cutter so as to reduce a load-based burden on the operator, facilitate the operation by the operator by causing a natural swing of the brush cutter, and facilitate the movement of the main body of the auxiliary mechanism in the direction in which the operator moves during the brush cutting operation, which results in the improvement of safety and workability as the brush cutter can be used by the operator with convenience and safety. The present invention includes an upper member that has an upper end portion to which one end portion of a chain is fastened, the brush cutter being coupled with the other end portion of the chain； an intermediate member that is coupled with a lower portion of the upper member； a lower member that is coupled with a lower portion of the intermediate member, wheels being coupled with both end portions thereof； and a front member that is coupled with a front portion of the lower member, the wheels being coupled with a front end portion thereof and a traction rope being fastened to one side thereof.본 발명은 예초기용 보조기구에 관한 것으로, 구체적으로는 예초기를 사용하여 작업할 때 예초기를 삼각뿔 형태의 보조기구 본체에 결속하여 하중에 의한 작업자의 부담을 줄이면서도 예초기의 자연스런 스윙을 유도하여 작업자가 손쉽게 작업할 수 있고, 나아가 예초 작업 시 작업자의 이동방향에 따라 보조기구 본체를 쉽게 이동시킬 수 있도록 하여 작업자가 편안하면서 안전하게 예초기를 사용할 수 있어 안전성과 작업성이 향상되는 예초기용 보조기구에 관한 것이다.본 발명은 상단부에 쇠사슬의 일단부가 결속되며, 상기 쇠사슬의 타단부에 예초기가 결합되는 상부부재； 상기 상부부재의 하부와 결합되는 중간부재； 상기 중간부재의 하부와 결합되되, 양 단부에 바퀴가 결합되는 하부부재； 및 상기 하부부재의 전방부에 결합되되, 전단부에 바퀴가 결합되고, 일측에 견인용 로프가 결속되는 전방부재를 포함한다.
