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A method suitable for anchoring an anchoring element in an object, which anchoring element is compressible in the direction of a compression axis under local enlargement of a distance between a peripheral anchoring element surface and the compression axis. The anchoring element has a coupling-in fac

A method suitable for anchoring an anchoring element in an object, which anchoring element is compressible in the direction of a compression axis under local enlargement of a distance between a peripheral anchoring element surface and the compression axis. The anchoring element has a coupling-in face which serves for coupling the mechanical vibrations into the anchoring element, which coupling-in face is not parallel to the compression axis. The anchoring element further includes a thermoplastic material which in areas of the peripheral surface enlargement forms at least a part of the surface of the anchoring element, the method includes the steps of: providing a bore in the object; positioning the anchoring element in the bore; and coupling the compressing force and the mechanical vibrations through the coupling-in face into the positioned anchoring element.

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1. 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 anchor

1. 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. 2. The method according to claim 1, wherein, on positioning the anchoring element in the bore, the compression axis is directed essentially parallel to an axis of the bore. 3. The method according to claim 1, wherein the anchoring element comprises at least two components which are moved relative to each other by the effect of the compressing force by being shifted along shifting surfaces extending obliquely to the compression axis. 4. The method according to claim 3, wherein at least one of said at least two components is spread by the effect of the compressing force. 5. The method according to claim 3, wherein at least some of the components of the anchoring element comprise thermoplastic material along the shifting surfaces and wherein a mechanical energy coupled into the anchoring element by the mechanical vibrations is sufficient to weld the components together irreversibly after the coupling of the vibrations and the subsequent re-solidification. 6. The method according to claim 1, wherein the anchoring element consists of one piece and is deformed by the effect of the compressing force. 7. The method according to claim 6, wherein the compressing force causes the anchoring element to spread or buckle. 8. The method according to claim 1, wherein the anchoring element comprises at least two components which are moved relative to each other by the effect of the compressing force by being shifted along shifting surfaces extending obliquely to the compression axis or wherein the anchoring element consists of one piece and is deformed by the effect of the compressing force and wherein tensions in the components generated by the deformation or the spreading or buckling respectively are reduced by the effect of the mechanical vibrations. 9. The method according to claim 1, wherein the anchoring element comprises at least two components which are moved relative to each other by the effect of the compressing force by being shifted along shifting surfaces extending obliquely to the compression axis or wherein the anchoring element consists of one piece and is deformed by the effect of the compressing force and wherein a separate auxiliary element is used for assisting the spreading or the deformation. 10. The method according to claim 1, wherein the compressing force is exerted between a tool and a counter-element, wherein the tool is in contact with the coupling-in face and wherein the counter-element does not load the object. 11. The method according to claim 1, wherein the step of coupling the compressing force into the anchoring element includes applying the compressing force by means of a spring element. 12. The method according to claim 1, wherein the coupling-in face is at least partly even and oriented perpendicular to the direction of the compression axis. 13. The method according to claim 1, wherein prior to the step of coupling in compressing force and mechanical vibrations, at least part of the peripheral surface of the anchoring element comprises a thermoplastic material and is in contact with a wall of the bore. 14. The method according to claim 1, further providing a source of vibrations and a step of generating mechanical vibrations by the source of vibrations. 15. A method of anchoring an anchoring element in an object of construction material with the aid of mechanical vibrations, wherein the anchoring element comprises a coupling-in face suitable for transmission of mechanical vibrations, and which anchoring element further comprises a thermoplastic material, which forms at least a part of the surface of the anchoring element, the method comprising the steps of: positioning the anchoring element on the object in such a way that areas of the anchoring element comprising the thermoplastic material are in contact with the object;coupling a force and mechanical vibration via the coupling-in face into the positioned anchoring element, whereby the thermoplastic material is at least partly liquefied from a solid to a liquid state by the mechanical vibration where in contact with the object and pressed into the object to form a form-fit connection with the object after re-solidification,wherein the force and the mechanical vibrations are coupled into the anchoring element from a tool, into which the mechanical vibrations are coupled on a proximal side and which comprises a coupling-out face on a distal side, across which the mechanical vibrations are coupled into the anchoring element, and wherein either the force being coupled into the tool is a tensile force or a counter-element is provided for exerting a counterforce opposed to said force, wherein said counterforce is coupled as a tensile force into the counter-element. 16. The method according to claim 15, wherein a bore is provided in the object prior to the positioning of the anchoring element, and the anchoring element is positioned within said bore. 17. The method according to claim 16, wherein the counter-element is positioned above the mouth or on the bottom of or inside the bore in the object. 18. The method according to claim 16 wherein, for counter-acting the force, coupled from the tool into the anchoring element, a counter-element is positioned on a mouth or on a bottom of or inside the bore in the object. 19. The method according to claim 15, wherein the step of coupling the tensile force into the tool or the counter element includes applying the tensile force by means of a spring element. 20. The method according to claim 15, wherein the 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, and wherein for coupling the force and the mechanical vibrations into the anchoring element, the coupling out face of the tool is pressed against the coupling-in face of the anchoring element. 21. A method for anchoring an anchoring element in an object with the aid of mechanical vibrations, which anchoring element comprises an axis and a thermoplastic material, which forms at least a part of the surface of the anchoring element, the method comprising the steps of: providing a bore in the object;positioning the anchoring element in the bore;providing a tool having a proximal portion and a distal end portion;positioning the tool in contact with to the anchoring element;coupling the mechanical vibrations into the tool and simultaneously moving the tool relative to the anchoring element in axial direction, a portion of the tool moving in an interior of the anchoring element, and thereby expanding the anchoring element and pressing the anchoring element at least locally against lateral walls of the bore and, due to the expansion and the effect of mechanical vibrations coupled into the anchoring element from the tool, liquefying the thermoplastic material at least partly, from a solid to a liquid state, where in contact with the wall of the bore to yield liquefied thermoplastic material, and pressing the thermoplastic material into the construction material in order to form a positive-fit connection with the wall after re-solidification.