| 摘要 |
PROBLEM TO BE SOLVED: To provide a spigot joint preventing a stopper from coming off even when a strong tensile force acts. SOLUTION: A spigot part 21 is provided on one pipe 20 to be connected, and a socket 31 is fixed on the other pipe 30. A groove 25 with which a stopper 60 to be fit in the socket 31 is engaged is formed on outer periphery of the spigot part 21. The stopper 60 is gate-shaped and both end parts are fixed so as to protrude into inner periphery of a pair of cutout grooves 37 formed on peripheral faces on both sides opposing over the pipe center of the socket 31 through the cutout groove 37. The stopper 30 is bent at a part where it crosses the groove 25 of the outer periphery of the spigot part 21 and forms a shape increased in crossed axes angle for the groove 25 by the bent part 63. |
