Patent ID: 6371530
Filing Date: 2002-04-16
Classification: F16L

Abstract:
A tube joint comprising:a pushing ring provided at its outer periphery with a projection and fitted to an outer periphery of one end of a joint tube; a tube or a joint body provided at its side opposed to said pushing ring with a projection opposed to said projection of said pushing ring, said tube or said joint body having a receiving portion which is widened toward said pushing ring and said tube or said joint body being fitted to an outer periphery of said joint tube with a peripheral gap left therebetween; a fastening tool capable of moving said pushing ring in a direction of said tube or said joint body; and a packing provided between an inner side of said tube or said joint body and an outer side of said joint tube, and fitted through said receiving portion by its own resilient deformation by operation of said fastening tool; and a spacer inserted between said pushing ring and said tube or said joint body to limit a distance between said pushing ring and said tube or said joint body to a constant value, said spacer being coupled with said packing and having a flange projecting outward beyond said receiving portion of said tube or said joint body, said flange being bent and deformed along said receiving portion when being pushed to push said spacer in said receiving portion by fastening operation of said fastening tool, thereby bringing said pushing ring and said tube or said joint body into abutment against each other.