Patent ID: 6131957
Filing Date: 2000-10-17
Classification: F16L

Abstract:
A construction for fixing a pipe joint, which comprises:a pipe joint body within which a fluid transport pipe is connected and engaged, elastic seal means being interposed between the pipe joint body and the fluid transport pipe to seal therebetween;a press ring disposed to be movable relative to the fluid transport pipe along a pipe axis direction, the press ring being peripherally divided to a plurality of press-ring segments, the press ring defining a cam surface in an inner peripheral face thereof;a fastener means operable to fasten said each press-ring segment to the pipe joint body along the pipe axis direction;a retainer member interposed between an outer peripheral face of the fluid transport pipe and the inner peripheral face of the press ring, the retainer member being displaced in a pipe radius reducing direction via the cam surface in association with a relative approaching movement between the pipe joint body and the press ring along the pipe axis direction resulting from a fastening operation of the fastener means, so that the retainer member radially bites into the outer peripheral face of the fluid transport pipe;wherein the pipe joint body and each press-ring segment include, at respective portions thereof opposed to each other along the pipe axis direction, an engaging recess and an engaging projection which come into engagement wish each other along the pipe axis direction in association with the fastening operation of the fastener means so as to restrict a relative radial displacement between the pipe joint body and each press-ring segment.