| 摘要 |
<P>PROBLEM TO BE SOLVED: To divide a female joint and a male joint even after repeating high pressure input. <P>SOLUTION: A pipe joint includes: the male joint 12 on which a recess 28 is formed on an outer peripheral surface 26; the female joint 14 which allows a tip 30 of the male joint 12 to fit from one end 42 side and on which a through hole 50 having a diameter expanding from an inner peripheral side toward an outer peripheral side is circumferentially aligned and formed; a spherical body 16 which is arranged in the through hole 50 and engages with the recess 28 of the male joint 12 thereby connecting the male joint 12 with female joint 14; a collar 18 which is disposed radially outside the female joint 14 and which supposes the spherical body 16 engaging with the recess 28 from the radially outside of the female joint 14; and a deformation releasing part 20 which is provided on a boundary between an inner peripheral surface 38 and the through hole 50 of the female joint 14 on the one end 42 side of the female joint 14 so as to recede from the outer peripheral surface 26 of the male joint 12 and releases deformation of the boundary to the outer peripheral surface 26 side caused by a contact pressure of the spherical body 16. <P>COPYRIGHT: (C)2012,JPO&INPIT |
