Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SCREW JOINT WITH MECHANISM TO PREVENT INVERSE ROTATION
PROBLEM TO BE SOLVED: To provide a screw joint with a mechanism to prevent an inverse rotation without enlarging a size of the screw joint.SOLUTION: A screw joint 1 with a mechanism to prevent an inverse rotation consists of a threaded male joint 3 and a female joint 7 having an inner shoulder part 5 to connect a steel pipe 9 by using the screw joint attached at an end of the steel pipe 9, which comprises the mechanism 11 to prevent the inverse rotation, wherein the mechanism 11 to prevent the inverse rotation is provided with: a first cutout 13 formed at a tip of the male joint 3; a second cutout 15 formed in the inner shoulder 5 of the female joint 7; a through-hole 19 formed continuously from an outer peripheral surface of the female joint 7 to the second cutout 15 and formed with a female screw part 17; a key groove 21 formed by configuring the first cutout 13 and the second cutout 15 in series in a direction of a tube axis in a state of a fitting completion; a screw rod member 25 with a function as a shearing key by forming a male screw part 23 to be inserted from an outer peripheral side of the through-hole 19 and to be screw-engaged with the female screw part 17 as a result of reaching the key groove 21.SELECTED DRAWING: Figure 1
【課題】ネジ継手が大型化することのない逆回転防止機構を備えたネジ継手を提供する。【解決手段】本発明に係る逆回転防止機構を備えたネジ継手１は、ネジ式の雄継手３と、内面ショルダ部５を有する雌継手７からなり、鋼管９の端部に取り付けられて鋼管９を接合するものであって、逆回転防止機構１１を有し、逆回転防止機構１１は、雄継手３の先端部に形成された第１切欠き部１３と、雌継手７の内面ショルダ部５に形成された第２切欠き部１５と、雌継手７の外周面から第２切欠き部１５に連続するように形成されると共に雌ネジ部１７が形成された貫通孔１９と、嵌合完了状態において第１切欠き部１３と第２切欠き部１５が鋼管軸方向で連続することで形成されるキー溝２１と、貫通孔１９に外周側から挿入されて雌ネジ部１７に螺合する雄ネジ部２３が形成される共にキー溝２１に到達することでせん断キーとして機能するネジ棒部材２５とを備えてなる。【選択図】 図１
SCREW JOINT WITH MECHANISM TO PREVENT INVERSE ROTATION
PROBLEM TO BE SOLVED: To provide a screw joint with a mechanism to prevent an inverse rotation without enlarging a size of the screw joint.SOLUTION: A screw joint 1 with a mechanism to prevent an inverse rotation consists of a threaded male joint 3 and a female joint 7 having an inner shoulder part 5 to connect a steel pipe 9 by using the screw joint attached at an end of the steel pipe 9, which comprises the mechanism 11 to prevent the inverse rotation, wherein the mechanism 11 to prevent the inverse rotation is provided with: a first cutout 13 formed at a tip of the male joint 3; a second cutout 15 formed in the inner shoulder 5 of the female joint 7; a through-hole 19 formed continuously from an outer peripheral surface of the female joint 7 to the second cutout 15 and formed with a female screw part 17; a key groove 21 formed by configuring the first cutout 13 and the second cutout 15 in series in a direction of a tube axis in a state of a fitting completion; a screw rod member 25 with a function as a shearing key by forming a male screw part 23 to be inserted from an outer peripheral side of the through-hole 19 and to be screw-engaged with the female screw part 17 as a result of reaching the key groove 21.SELECTED DRAWING: Figure 1
【課題】ネジ継手が大型化することのない逆回転防止機構を備えたネジ継手を提供する。【解決手段】本発明に係る逆回転防止機構を備えたネジ継手１は、ネジ式の雄継手３と、内面ショルダ部５を有する雌継手７からなり、鋼管９の端部に取り付けられて鋼管９を接合するものであって、逆回転防止機構１１を有し、逆回転防止機構１１は、雄継手３の先端部に形成された第１切欠き部１３と、雌継手７の内面ショルダ部５に形成された第２切欠き部１５と、雌継手７の外周面から第２切欠き部１５に連続するように形成されると共に雌ネジ部１７が形成された貫通孔１９と、嵌合完了状態において第１切欠き部１３と第２切欠き部１５が鋼管軸方向で連続することで形成されるキー溝２１と、貫通孔１９に外周側から挿入されて雌ネジ部１７に螺合する雄ネジ部２３が形成される共にキー溝２１に到達することでせん断キーとして機能するネジ棒部材２５とを備えてなる。【選択図】 図１
SCREW JOINT WITH MECHANISM TO PREVENT INVERSE ROTATION
逆回転防止機構を備えたネジ継手
ICHIKAWA KAZUOMI (Autor:in)
09.08.2018
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
SCREW JOINT HAVING INVERSE ROTATION PREVENTION MECHANISM
| Europäisches Patentamt | 2018