The present invention relates to a sinker for fishing, which is to eliminate the natural elasticity, which tries to return to the opposite direction to the winding direction when winding a plate (2) in one direction by installing grooves (1) on the plate (2) used by winding on a fishing holder to control the weight. That is, provided that an iron plate with a thickness of 2 mm is wound, the iron plate is hard to wind and to prevent unwinding of the iron plate due to the elasticity, which tries to unwind itself. However, when grooves with a depth of 1 mm are installed on one side of the iron plate with a thickness of 2 mm, the plate has the effect of being easy to be wound and eliminating most of elasticity of unwinding. The present invention based on the said fact has the effect of being easy to wind or unwind a control member plate, which causes the effect of conveniently controlling the weight. In particular, until now, a plate (2) with an extremely thin thickness has to be used to wind or unwind the control member plate (2). However, the present invention has the effect of allowing to use the plate (2) with a desired thickness. That is, the time, efforts and technologies are very much different between when the 0.1 mm is wound until 10 g and when 1 mm is wound until 10 g. Furthermore, the present invention has the effect of not tilting the wound roll by installing a groove in the winding direction, and facilitating the weight control as the weight of one groove can be marked by making the distance between grooves constant.COPYRIGHT KIPO 2015본 발명은 낚시용 봉돌에 관한 것으로서, 낚시용 홀더에 중량 조절용으로 감아서 사용하는 (2)판에 (1)홈을 개설하여, (2)판을 어느 한쪽방향으로 감을 때 감긴 반대 방향으로 되돌아가려고 하는 자연적 탄성을 없도록 하기 위한 것이다.즉, 두께2mm의 철판을 감았다고 가정을 하면, 스스로 풀어지려는 탄성으로 인해 감기도 어렵고 철판이 풀리는 것을 방지하기도 어렵다.그러나, 2mm의 철판 일측에 깊이1mm의 홈을 개설하여 감으면 감기도 쉬운 효과 뿐만 아니라 풀리려는 탄성도 대부분 없어지는 효과가 있다.이런 점에서 착안한 본 고안을 이용하면, 조절부재 판을 감거나 풀기 쉬운 효과가 있고, 이런 효과는 중량을 조절하기 편리한 효과로 연결된다.특히, 지금까지는 조절부재 (2)판을 감거나 풀기 위하여 (2)판의 두께가 극도로 얇은 것을 사용해야 했으나, 본 고안에 의
