| 摘要 |
PURPOSE: A spherical float is provided which helps fishing line to sink to water deeply so that it shows good effect in detecting fishes' biting exactly. CONSTITUTION: The spherical float comprises the parts of: a penetration pipe(13) which is placed at a body that is made by a conic buoyant material(11)(11'); a space part(12)(12') which is symmetrically placed with respect to all directions of the buoyant material on a basis of the center of gravity of a half body which is half size of a body that is placed at the lower part of the center of gravity in the body; a sinker(14) which has smaller buoyancy than the body; and an air chamber(16) which is placed at the upper or the lower part of the sinker.
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