| 摘要 |
The present invention relates to a sinker for fishing comprising: a cylinder (10) having a cylindrical shape; a piston (20) combined with the inside of the cylinder (10) using a screw, and in which a piston ring for sealing with an inner wall of the cylinder is installed in an upper end; a cap (30) combined with the upper end of the cylinder (10) using a screw, and including a cap ring for sealing with the upper end of the cylinder in the inside; a weight (40) combined with the lower end of the piston (20) using a screw; and a ring (50) included in the cap (30) and the weight (40). Thus, the weight can be easily exchanged and buoyancy can be easily controlled and maintained. |
