Patent ID: 8151541

Claim:
A method of anchoring an anchoring element in an object of construction material, which anchoring element is compressible in the direction of a compression axis under local enlargement of a distance between a peripheral surface of the anchoring element and the compression axis, wherein the anchoring element comprises a coupling-in face not parallel to the compression axis for the coupling-in of a compressing force and mechanical vibration, and wherein the anchoring element further comprises a thermoplastic material forming at least a part of the peripheral surface of the anchoring element, the method comprising the steps of: providing a bore in the object; positioning the anchoring element in the bore; coupling the compressing force and the mechanical vibrations via the coupling-in face into the positioned anchoring element, whereby the anchoring element is compressed and due to the distance enlargement at least locally pressed against lateral walls of the bore and the thermoplastic material is at least partly liquefied from a solid to a liquid state by the mechanical vibrations where in contact with the lateral walls and pressed into structures of the object to form, after re-solidification, a form-fit connection with the lateral walls.