Method for producing a screw foundation for securing elements in the ground
AssigneeWinkelmann Foundation Screw Sp. z o.o.
InventorsBernd Rudert, Karl-Heinz Hecker, Ralf Pottgueter
Life of this patent
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Abstract
A method for producing a screw foundation for securing elements in the ground, provides a cylindrical tube as an initial form and a conical front portion tapering to an insertion tip is then molded on to the cylindrical tube using a non-cutting process, the front portion being provided at least in some regions with a thread-like contour for screwing into the ground. An inner contour for a screwing tool is formed integrally in a rear end of the tube by flow forming, and the front portion and the thread-like contour are formed exclusively by flow forming.
Claims10
A method for producing a ground screw foundation for securing elements in the ground, the method comprising:
- providing a cylindrical tube as an initial form, and
- subsequently forming a conical front section on the cylindrical tube, using a non-cutting process, wherein the conical front section tapers to an insertion tip, wherein at least sections of the conical front section have a thread-like contour so that the conical front section can be screwed into the ground, and
- forming an inner contour for receipt of a screw-in tool on a rear end of the cylindrical tube by a flow forming,
- wherein the conical front section and the thread-like contour are exclusively formed by the flow forming.
Dependencies are inferred from the claim text.