魚の食いに対する棒浮きの上下ならびに回転応答に関する研究

―仕掛け構成パラメータとの関係―

抄録

This paper analyzes vertical and rotational responses of a bar float to a fish bite. The tackle consists of the float, a main line, a sinker, a hook line, subsinkers, and a hook. Float mass, float diameter, sinker mass, and inclination of float are changed. Vertical responses remain similar except for oscillation frequency, even if the float mass differs. However, visibility improves, especially for a fish bite during a downward wave period, because the float tilted by the drag force moves upright. Similarly, the vertical movement is not affected by sinker masses. However, a light sinker improves visibility because the float more easily tilts and hence moves upright. Smaller float diameters yield more and quicker visibility movement.