Patent ID: 7475913

Claim:
A tube joint comprising: a resin material body into which a fluid tube is inserted and which is formed to be cylindrical; a chuck which is provided in said body and which retains said fluid tube in said body through engagement with an outer circumferential surface of said fluid tube; a cylindrical guide member which is provided between said body and an outer circumferential surface of said chuck; and a non-threaded ring member which is composed of a metal material and which is provided radially outwardly with respect to said guide member with said body intervening therebetween, wherein said chuck is expanded in diameter and an inclined section of said chuck abuts against an inclined surface of said guide member to press said guide member radially outwardly when said fluid tube is pulled in a direction to make separation from said body, and said body, a portion of which is provided on the outer circumferential side of said guide member, is pressed radially outwardly by said guide member, whereby said body is retained by said ring member, wherein a projection, which protrudes radially outwardly, is formed on a non-threaded outer circumferential surface of said body, said ring member is engaged with said projection, and displacement of said ring member in an axial direction is regulated, and wherein said ring member has a first wall section which is fitted to said non-threaded outer circumferential surface of said body, and a second wall section which is disposed substantially perpendicular to said first wall section and which abuts against ends of said guide member and said body.