Patent ID: 8663527

Claim:
A method for arranging engagement means in a concrete part, comprising the steps of: providing a body whose exterior comprises an elastomer material, with mechanical properties which are such that there is a considerable reduction in the external diameter at removal from the concrete; providing a formwork, arranging said body at the formwork surface extending from one side of said formwork surface into said formwork, encasing said body in concrete material and removing it from the concrete after setting and removal of the formwork, said body being elongate and is removed from the concrete in its longitudinal direction and is provided with a projection which, at a distance from its end located at the boundary surface of the concrete, is positioned transversely with respect to the longitudinal direction, and after the concrete sets, the body leaves behind a non-release recess corresponding to the shape of the body's projection, with the surface of the set concrete surrounding the non-release recess shaped for an engagement part which is then fitted into the concrete, wherein said body comprises a core, wherein said core is relatively rigid, comprises a supporting surface having a diameter and is self-supporting, is secured against said formwork at the supporting surface by mounting means and is removed by pulling out the core together with said elastomer material from said concrete, wherein said supporting surface is at a first extremity of said body and said projection is provided at a second opposite extremity of said body, and wherein said mounting means extend through an opening in said formwork to the outside of said formwork, the diameter of said opening being smaller than the diameter of said supporting surface of said core secured against said formwork.