管状構造物

Japanese Patent JP6965594

B2

Provided is a tubular structure that is easily processed at a construction site and that has an excellent pullout prevention property when coupled, even when the thickness of the tubular structure is small. The present invention is a tubular structure 100 provided with a tubular member 1 at the ends of which annular recesses 12 are formed, and a fitting ring 13 that has two outside surfaces 13c, 13b perpendicular to an axial line A of the tubular member 1, and that is pressed and secured against the outer circumference of the annular recesses 12. The fitting ring 13 is divided into a plurality of arc-shaped members 13a and 13b, and the arc-shaped members 13a and 13b, are coupled to each other by means of coupling members 14. In the coupled state the inner circumference of the fitting ring 13 is shorter than the outer circumference of the annular recesses 12 into which the fitting ring 13 is pressed and secured. Before being coupled the arc-shaped members 13a and 13b are arranged along the outer circumference of the annular recesses of the tubular member 1, and the arc-shaped members are then coupled to each other by means of the coupling members 14, thereby pressing and securing the tubular member 1 against the outer circumference of the annular recesses 12.

JPS58114980

【考案の名称】締付形管接続金具

Nishijima Shinnosuke
Hiroki Tomimura

JP2017122553A

November 10, 2021

June 22, 2017

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Nippon Steel Corporation

F16L21/06; F16L21/00; F16L21/02; F16L21/08; F16L25/14

JP5027486U
JP11230440A
JP2014126101A
JP2003194272A
JP53122721U
JP9178053A
JP5052478U

US20080111377

Hayashi Ichiyoshi
Akihiro Kitamura

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