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BONDED JOINT OF STEEL PIPE
PROBLEM TO BE SOLVED: To obtain a bonded joint of a steel pipe which can improve workability from a start of bonding up to the completion of screw-fastening, and is excellent in construction performance.SOLUTION: In this bonded joint 3 of a steel pipe which is attached to an end part of the steel pipe 1 constituting a structure for driving the steel pipe into the ground, and bonds the steel pipe 1, the bonded joint is composed of a male-side cylinder body 5 having a male screw which is a parallel screw, and composed of a multi-thread screw having three or more of threads, and a female-side cylinder body 7 which is a parallel screw, and composed of a multi-thread screw having three or more of threads. A cylinder part 11 having an outside diameter which is loosely fit to an inside diameter of a female screw is arranged at a tip of the male-side cylinder body 5, a female-side cylinder body tip part 13 is made to abut on an external peripheral seat 15 which is formed at the male-side cylinder body 5 in a state that a male screw of the male-side cylinder body 5 is screwed and fastened, and a female-side inclined face 13a which is point-symmetric with respect to a cylinder shaft center, and inclined to a radial direction is formed at the female-side cylinder body tip part 13 over the whole periphery, and a male-side inclined face 15a whose inclination direction and an inclination angle are the same as those of the female-side inclined face 13a is formed at an external peripheral seat 15 of the male-side cylinder body 5 which abuts on the female-side inclined face 13a over the whole periphery.SELECTED DRAWING: Figure 1
【課題】接合開始時からねじ締めつけ完了時までの作業性を向上でき、施工性に優れる鋼管の接合継手を得る。【解決手段】本発明に係る鋼管の接合継手は、地中に打設する構造体を構成する鋼管1の端部に取り付けられて鋼管1を接合する接合継手3であって、平行ねじで3条以上の多条ねじからなる雄ねじを有する雄側筒体5と、平行ねじで3条以上の多条ねじからなる雌ねじを有する雌側筒体7とからなり、雄側筒体5の先端に雌ねじ内径に遊嵌する外径を有する円筒部11を設け、雄側筒体5の雄ねじをねじ込んで締めた状態において、雌側筒体先端部13が雄側筒体5に形成した外周座15に当接するように構成し、雌側筒体先端部13に、筒軸中心に対して点対称で、かつ径方向に傾斜する雌側傾斜面13aを全周に亘って形成すると共に、雌側傾斜面13aに当接する雄側筒体5の外周座15に雌側傾斜面13aと傾斜方向及び傾斜角が同じ雄側傾斜面15aを全周に亘って設けたものである。【選択図】 図1
BONDED JOINT OF STEEL PIPE
PROBLEM TO BE SOLVED: To obtain a bonded joint of a steel pipe which can improve workability from a start of bonding up to the completion of screw-fastening, and is excellent in construction performance.SOLUTION: In this bonded joint 3 of a steel pipe which is attached to an end part of the steel pipe 1 constituting a structure for driving the steel pipe into the ground, and bonds the steel pipe 1, the bonded joint is composed of a male-side cylinder body 5 having a male screw which is a parallel screw, and composed of a multi-thread screw having three or more of threads, and a female-side cylinder body 7 which is a parallel screw, and composed of a multi-thread screw having three or more of threads. A cylinder part 11 having an outside diameter which is loosely fit to an inside diameter of a female screw is arranged at a tip of the male-side cylinder body 5, a female-side cylinder body tip part 13 is made to abut on an external peripheral seat 15 which is formed at the male-side cylinder body 5 in a state that a male screw of the male-side cylinder body 5 is screwed and fastened, and a female-side inclined face 13a which is point-symmetric with respect to a cylinder shaft center, and inclined to a radial direction is formed at the female-side cylinder body tip part 13 over the whole periphery, and a male-side inclined face 15a whose inclination direction and an inclination angle are the same as those of the female-side inclined face 13a is formed at an external peripheral seat 15 of the male-side cylinder body 5 which abuts on the female-side inclined face 13a over the whole periphery.SELECTED DRAWING: Figure 1
【課題】接合開始時からねじ締めつけ完了時までの作業性を向上でき、施工性に優れる鋼管の接合継手を得る。【解決手段】本発明に係る鋼管の接合継手は、地中に打設する構造体を構成する鋼管1の端部に取り付けられて鋼管1を接合する接合継手3であって、平行ねじで3条以上の多条ねじからなる雄ねじを有する雄側筒体5と、平行ねじで3条以上の多条ねじからなる雌ねじを有する雌側筒体7とからなり、雄側筒体5の先端に雌ねじ内径に遊嵌する外径を有する円筒部11を設け、雄側筒体5の雄ねじをねじ込んで締めた状態において、雌側筒体先端部13が雄側筒体5に形成した外周座15に当接するように構成し、雌側筒体先端部13に、筒軸中心に対して点対称で、かつ径方向に傾斜する雌側傾斜面13aを全周に亘って形成すると共に、雌側傾斜面13aに当接する雄側筒体5の外周座15に雌側傾斜面13aと傾斜方向及び傾斜角が同じ雄側傾斜面15aを全周に亘って設けたものである。【選択図】 図1
BONDED JOINT OF STEEL PIPE
鋼管の接合継手
ICHIKAWA KAZUOMI (Autor:in) / TSUJIMOTO KAZUHITO (Autor:in)
29.06.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen