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Method for producing a screw foundation

a production method and screw technology, applied in the field of screw foundation production methods, can solve the problems of high production complexity, weak durability and strength, and achieve the effects of low internal stress, high loading capacity of the screw foundation, and efficient and precise procedural sequen

Inactive Publication Date: 2011-10-13
TERRAFIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]It is therefore the object of the present invention to provide a method for producing a screw foundation which enables a simple production process while minimising weaknesses.

Problems solved by technology

Although such screw foundations have proved to be of value in practice, it has been shown that they are associated with a comparably high degree of complexity in production and have weaknesses as regards durability and strength.

Method used

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  • Method for producing a screw foundation
  • Method for producing a screw foundation
  • Method for producing a screw foundation

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Embodiment Construction

[0005]It is therefore the object of the present invention to provide a method for producing a screw foundation which enables a simple production process while minimising weaknesses.

[0006]This object is achieved according to the invention by a method for producing a screw foundation according to claim 1. Particularly advantageous further developments of the invention are specified in the dependent claims.

[0007]The idea forming the basis of the invention is, with a method for producing a screw foundation, to reduce the number of procedural steps directly affecting the later screw foundation such that not only is a simplified procedural sequence produced, but at the same time also a reduced number of interfaces and so of weak points. Against this background the method according to the invention comprises the following steps:[0008]providing a tubular starting material with a required length,[0009]laying a free end of the tubular starting material between at least two shaped elements,[00...

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Abstract

A method for producing a screw foundation (1) for anchoring building parts or structures in the ground, comprising the following steps: providing a tubular starting material (10) with a required length, laying a free end (12) of the tubular starting material (10) between at least two shaped elements (20), securing the tubular starting material (10) in its longitudinal direction, compressing the free end (12) of the tubular starting material (10) by moving together the at least two shaped elements (20), with the result that an at least partially tapering region (14) is formed on the free end (12) of the tubular starting material (10), and forming a screw-like or helical thread (16) on the at least partially tapering region (14).

Description

TECHNICAL FIELD[0001]The invention relates to a method for producing a screw foundation for anchoring building parts or structures in the ground.PRIOR ART[0002]Screw foundations are widely used in structural engineering for directly anchoring signposts, masts, canopies and the like in the ground. For this purpose screw foundations, which are also called ground anchors, have a coil-like coarse thread that can be screwed directly into the ground.[0003]In order to produce the screw foundations it is known, for example from DE 198 36 370 A1, to hammer a cylindrical tube into the desired shape. This is generally achieved by using a conical mould into which the cylindrical tube is hammered in the longitudinal direction of the tube. A spike is then welded onto the tapered end of the tube produced in this way. Furthermore, a further tube section is welded onto the opposite end of the tube in order to achieve the desired length of the screw foundation.[0004]Although such screw foundations ha...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B21H3/02
CPCE02D5/801B21D41/04E04H12/2223
Inventor REISCH, STEPHAN
Owner TERRAFIX
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