Patent ID: 7988206

Claim:
A flareless-type pipe joint comprising a joint body having a pipe connecting port through which a pipe to be joined is passed, a coupling member fastened to the joint body, an annular ferrule, and a cam surface guiding a distal portion of the ferrule to bite into the pipe, wherein: the cam surface is formed in at least one of the joint body and the coupling member; a pressing surface is formed in the joint body or the coupling member in which the cam surface is not provided, the pressing surface pressing a rear end portion of the ferrule in an axial direction and toward an inner periphery of the ferrule; the ferrule has a groove that extends outward in a radial direction from an inner periphery of the ferrule in such a manner as to divide the ferrule into a front portion and a rear portion; the groove is shaped in such a manner that, when an edge portion of the distal portion of the ferrule and an edge portion of a rear end portion of an inner peripheral surface of the ferrule are being deformed to bite into the pipe, front and rear surfaces defining the groove contact each other at the entire surfaces or parts of the surfaces; and the distal portion of the ferrule is pressed against the cam surface by pressing the rear end portion of the ferrule in the axial direction and toward the inner periphery by means of the pressing surface, so that the edge portion formed in the distal portion of the ferrule and the edge portion provided in the rear end portion of the inner peripheral surface of the ferrule bite into the pipe.