Coupling for bore anchors has inwards protruding annular rib with cylindrical inner end face upon which lie with sealing action the outer faces of cylindrically formed threadless ends of anchor pipes

摘要

The coupling for bore anchors has a sleeve (1) with a female thread, and two anchor pipes (2) with male threads. An inwards protruding annular rib (4) is provided in the longitudinal center of the sleeve, and the end faces (6) of the anchor pipe ends held in the sleeve are installed in the region of the annular rib and lie directly one upon the other. The annular rib has a cylindrical inner end face (10), and the outer faces (12) of the cylindrically formed threadless ends (8) of the anchor pipes lie upon the inner end face of the annular rib with a sealing action.