PROBLEM TO BE SOLVED: To provide a polygonal rod having sufficient repulsion after being bent by forming the polygonal shape having hollow parts in the inside by using a plurality of long T-shaped members having T-shapes at the cross sections.SOLUTION: The polygonal rod which has a long rod shape as the whole shape, and the outer shape of which is formed so as to have the polygonal shape at the cross section is constituted out of a plurality of the long T-shaped members (10) having the T-shapes at the cross sections so as to form a hollow shape.COPYRIGHT: (C)2010,JPO&INPIT【課題】本発明は、断面T字型をなす長手T字型部材を複数個用いて内側に中空部を有する多角形とし、竿の曲り後の反発力を十分に有することを目的とする。【解決手段】本発明による多角竿は、全体形状が長手棒状をなし、その外周形状が断面多角形で形成された多角竿において、断面T字型をなす長手T字型部材(10)を少なくとも複数有して中空状をなす構成である。【選択図】図1
