(57) Abstract Objective In the cylindrical chemical luminous component which formed the fishing line perforation holeWhen making the fishing line penetrate completely, it occurs the aperture edge of the tend fishing line perforation holeThe night when it tries to be able to prevent the cutting into damage of the section with simple structure The sequence floating in business is offered. Constitution On the floating body 1 which formed the fishing line perforation hole 2 in shaft center directionIn the section, cylindrical kemi of the duplex cylinder structure which formed the fishing line perforation hole 43Installation and removal installing karu luminous component 4 possibly, the night when you use businessIn it passes and floats in A, the fishing line of cylindrical chemical luminous component 4Fishing line 3 was made to move to open end 43of a the perforation hole 43,The time the structure which provides the additional strength component 6 which ardently prevents the which it occurs damageIt has made structure.
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