ROD, METHOD OF MANUFACTURING A PAIR OF HALVES, AND METHOD OF ACCOMMODATING ROCK CORE

To provide a rod equipped with a core tube for accommodating a rock core, from which the rock core accommodated in the core tube can be easily removed.SOLUTION: A rod 1 of the present invention has a reusable core tube for containing a rock core inside. Core tubes K1 and K2 are formed into a cylindrical shape by butting together a pair of halves 13A and 13B, respectively. A cylindrical body 8, which forms a front end of the core tube K1, is screwed into the inside of a cylindrical body 16, which is provided on a rear side of a bit sleeve 3. A cylindrical body 10, which forms a rear end of the core tube K1, is screwed into the inside of a cylindrical body 30 provided on a front side of a core tube connection adapter 7. The cylindrical body 8, which forms a front end of the core tube K2, is screwed into the inside of a cylindrical body 32, which is provided on a rear side of the core tube connection adapter 7. The cylindrical body 10, which forms a rear end of the core tube K2, is screwed into the inside of a cylindrical body 20 provided on a front side of a shank sleeve 4.SELECTED DRAWING: Figure 3 【課題】岩石コアを収容するためのコア管を備えるロッドであって、コア管内に収容された岩石コアを容易に取り出し可能なロッドを提供する。【解決手段】本発明のロッド１は、岩石コアを内部に収容するための再利用可能なコア管を備える。コア管Ｋ１，Ｋ２は、それぞれ一対の半割体１３Ａ，１３Ｂを突き合わせることで円筒状に形成されるものである。コア管Ｋ１の前端部をなす円筒体８は、ビットスリーブ３の後側に設けられる円筒体１６の内部にねじ込まれる。コア管Ｋ１の後端部をなす円筒体１０は、コア管接続用アダプター７の前側に設けられる円筒体３０の内部にねじ込まれる。コア管Ｋ２の前端部をなす円筒体８は、コア管接続用アダプター７の後側に設けられる円筒体３２の内部にねじ込まれる。コア管Ｋ２の後端部をなす円筒体１０は、シャンクスリーブ４の前側に設けられる円筒体２０の内部にねじ込まれる。【選択図】図３