WO2010054902A1 - Method for producing a screw foundation - Google Patents
Method for producing a screw foundation Download PDFInfo
- Publication number
- WO2010054902A1 WO2010054902A1 PCT/EP2009/063184 EP2009063184W WO2010054902A1 WO 2010054902 A1 WO2010054902 A1 WO 2010054902A1 EP 2009063184 W EP2009063184 W EP 2009063184W WO 2010054902 A1 WO2010054902 A1 WO 2010054902A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- starting material
- tubular
- free end
- tubular starting
- producing
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
- E02D5/801—Ground anchors driven by screwing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2207—Sockets or holders for poles or posts not used
- E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
- E04H12/2223—Sockets or holders for poles or posts not used driven into the ground by screwing
Definitions
- the invention relates to a method for producing a Drehfunklaments for anchoring components or structures in the underground.
- Rotary foundations are widely used in structural engineering for the direct anchoring of signs, masts, roofs and the like in the ground.
- rotary foundations which are also referred to as ground anchors, a helical coarse thread, which can be screwed directly into the ground.
- the inventive method allows a comparatively low Mate ⁇ ailiens and a uniform wall thickness of the rotary foundations
- the inventive method allows a comparatively low Mate ⁇ ailiens and a uniform wall thickness of the rotary foundations
- the moldings are uniformly acted upon by a hydraulic press during assembly.
- a hydraulic press allows a draughty and precise procedural sequence, the uniform distribution of the pressing force resulting in low residual stresses and thus a high load capacity of the manufactured rotary foundation beitiagt.
- the number of Formkorper used for Caribbean horrinum is not particularly limited in the invention According to a development of the invention, however, it is provided that at least three, preferably at least four moldings are used for Georgia sake, rohrformigen Ninths. This in turn results in a uniform deformation with low residual stresses
- the shaped bodies are configured and moved together in such a way that the free end of the tubular material is formed into a blunt end. Mate ⁇ aian accumulations and stress concentrations in the region of the free end can thereby be avoided that even a blunt end can easily turn into most soil
- the free end of rohrformigen starting material is formed by the Formkorper such that it has an axial passage opening This not only facilitates screwing, but the fürgangso Matt also allows the outflow of (rain) water that could otherwise cause corrosion or frost damage
- At least one Formkorper on its the rohrformigen starting material facing surface has at least one projection in this way, the rohrformige Congressmate ⁇ ai be firmly and firmly held in the longitudinal direction during the pressing process This applies regardless of the length of rohrformigen Starting material, while length changes in other detentions require each reconstruction work.
- the depressions in the tubular starting material which arise as a result of the at least one projection possibly are insignificant for the present application.
- connection section is further formed on the tubular starting material, which is provided on the side of the tubular starting material opposite the at least sectionally tapered region.
- the tubular starting material may in the context of the present invention have different geometries, such as a rectangular or round cross-section, and may be made of different materials. Particularly advantageous is the use of stainless steel, which combines good ductility with high corrosion resistance.
- weld In this method can be dispensed with strong deformation or compression of the starting material. The process can therefore be carried out with simple means and only a very small amount of starting material is needed. Furthermore, the later rotary foundation obtains a very uniform wall thickness, and the rotary foundation can be made in large quantities without welding additional pipe sections. This applies in particular if, according to a development of the invention, the at least one weld seam is provided in a tapering section.
- Fig. 1 shows schematically a side view of a rotary foundation which has been manufactured by means of a method according to the invention
- Fig. 2 shows schematically a side view of a rotary foundation made by means of a method according to the invention
- Fig. 3 shows schematically a side sectional view of a rotary foundation in
- Fig. 4 shows schematically moldings which in the course of the invention
- Fig. 5 shows schematically an alternative embodiment of the method according to the invention or of a rotary foundation produced therewith.
- the method according to the invention is used to produce rotary foundations 1, as illustrated by way of example in FIG. 1 and FIG. 2, each in a side view.
- the rotary foundations 1 are used for anchoring components or structures in the ground and can be screwed for this purpose by means of a screw or helical thread 16 in the ground.
- the clothing 16 is provided at least on a tapered region 14 of a starting material or basic body 10.
- the rotary foundation 1 has, on the opposite end of the tapered portion 14, a terminal portion 30 which in the present embodiment is formed by a circumferential flange which may include, for example, through-holes (not shown) or welded-on threaded nuts (not shown).
- a tubular starting material 10 which may be made of stainless steel, for example, is provided with a required length, wherein the tubular starting material 10 may have, for example, a rectangular or round cross section (hollow cross section).
- Ansch ⁇ convinceend the free end 12 of the rohrförmägen starting material 10 is inserted between a plurality of moldings 20, wherein the arrangement of the moldings in the present embodiment in Fig. 4 is shown schematically.
- the molded bodies 20 can be moved radially between an open position (FIG. 4 a)) and a closed position (FIG. 4 b)). Accordingly, the moldings are moved before inserting the free end 12 of the rohrformigen administratmateriais 10 in the position shown in Fig. 4a). Once the free end 12 is inserted and positioned, for example by means of a stop, the moldings 20 are moved radially together. They are uniformly acted upon by a press 22 shown schematically in FIG. 3, so that the free end 12 of the tubular starting material 10 is uniformly compressed.
- the screw or helical thread 16 is formed on the tapered portion 14, for example by welding corresponding thread turn!. Furthermore, the connection section 30 already described above is formed on the tubular starting material 10, for example also by welding. This completes the manufacturing process.
- a tubular, one-piece starting material 10 is provided, as has already been described above.
- This starting material 10 is, as shown in Fig. 5a), divided along a serrated line 42 into two main body, whereby basic body 40 are formed with two tine-like sections 44.
- tine-colored sections 44 are now deformed in such a way that they form a tapering section 14 of the basic body (compare FIG. 5b)). Now, the tine-like portions 44 are joined together along a weld 46 provided in the tapered portion 14.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009315881A AU2009315881A1 (en) | 2008-11-13 | 2009-10-09 | Method for producing a screw foundation |
EP09736405A EP2350409A1 (en) | 2008-11-13 | 2009-10-09 | Method for producing a screw foundation |
CA2743919A CA2743919A1 (en) | 2008-11-13 | 2009-10-09 | Method for producing a screw foundation |
MX2011005065A MX2011005065A (en) | 2008-11-13 | 2009-10-09 | Method for producing a screw foundation. |
US13/129,381 US20110250977A1 (en) | 2008-11-13 | 2009-10-09 | Method for producing a screw foundation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008043709A DE102008043709A1 (en) | 2008-11-13 | 2008-11-13 | Method for producing a rotary foundation |
DE102008043709.3 | 2008-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010054902A1 true WO2010054902A1 (en) | 2010-05-20 |
Family
ID=41426208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/063184 WO2010054902A1 (en) | 2008-11-13 | 2009-10-09 | Method for producing a screw foundation |
Country Status (7)
Country | Link |
---|---|
US (1) | US20110250977A1 (en) |
EP (1) | EP2350409A1 (en) |
AU (1) | AU2009315881A1 (en) |
CA (1) | CA2743919A1 (en) |
DE (1) | DE102008043709A1 (en) |
MX (1) | MX2011005065A (en) |
WO (1) | WO2010054902A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010043785B3 (en) * | 2010-11-11 | 2012-03-22 | Krinner Innovation Gmbh | Screw foundation for e.g. post, has helical screw with tapered intermediate portion that includes convex cladding region whose convexity radius is equal to diameter of upper cylindrical portion of screw |
BE1022054B1 (en) | 2014-06-26 | 2016-02-10 | Rbs Sprl | FASTENING LEG FOR CONSTRUCTION ELEMENT |
DE102021133240A1 (en) | 2021-12-15 | 2023-06-15 | Winkelmann Powertrain Components GmbH & Co. KG. | Ground screw for fixing elements in a substructure with a tubular body |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19836370A1 (en) | 1998-08-11 | 2000-02-24 | Klaus Krinner | Ground anchor for posts, masts etc, made by hammering cylindrical piece of tubing to form cone shaped anchor section |
US6523302B2 (en) * | 2000-12-04 | 2003-02-25 | Esmail Zayeratabat | One piece garden stake |
DE202008004967U1 (en) * | 2008-04-09 | 2008-07-17 | Cortec Gmbh | ground anchor |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2129290A (en) * | 1936-09-19 | 1938-09-06 | Firm Friedr | Method and apparatus for producing screw threads |
US3362212A (en) * | 1965-04-13 | 1968-01-09 | Walker Mfg Co | Tube machine |
IT1261103B (en) * | 1993-10-29 | 1996-05-09 | Borletti Climatizzazione | PROCEDURE FOR CONFORMING ACCORDING TO A CIRCULAR CROSS SECTION THE END OF AN OBLONG CROSS SECTION TUBE. |
GB2305948A (en) * | 1995-10-04 | 1997-04-23 | Rumney Barbara Anne | Ground bolts |
DE19814474C1 (en) * | 1998-04-01 | 1999-07-08 | Peter Dipl Ing Schroeck | Radial press tool for rotationally symmetrical workpieces |
DE10250257B4 (en) * | 2001-12-12 | 2010-05-12 | Erich Haimerl | Straßenleitpfostenfuß |
US6779375B1 (en) * | 2003-03-26 | 2004-08-24 | Randall L. Alexoff | Method and apparatus for producing tubes and hollow shafts |
DE102005034260B3 (en) * | 2005-07-22 | 2006-07-27 | Schröck-Horn, Ursula | Radial press for pressing of rotationally symmetrical hollow bodies with parallel posts and two part press tool useful in production of flexible hose fittings has provision for swinging tool parts around axis |
DE102005045574A1 (en) * | 2005-09-23 | 2007-04-12 | "DOMA"-Autozubehör und Industriebedarf GmbH | Screw foundation for a ground anchor, to be screwed into the ground, has a spiral at a conical section between two cylindrical sections |
US7494160B2 (en) * | 2006-06-15 | 2009-02-24 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Sealing structure of heat pipe and method for manufacturing the same |
-
2008
- 2008-11-13 DE DE102008043709A patent/DE102008043709A1/en not_active Withdrawn
-
2009
- 2009-10-09 EP EP09736405A patent/EP2350409A1/en not_active Withdrawn
- 2009-10-09 AU AU2009315881A patent/AU2009315881A1/en not_active Abandoned
- 2009-10-09 WO PCT/EP2009/063184 patent/WO2010054902A1/en active Application Filing
- 2009-10-09 MX MX2011005065A patent/MX2011005065A/en not_active Application Discontinuation
- 2009-10-09 US US13/129,381 patent/US20110250977A1/en not_active Abandoned
- 2009-10-09 CA CA2743919A patent/CA2743919A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19836370A1 (en) | 1998-08-11 | 2000-02-24 | Klaus Krinner | Ground anchor for posts, masts etc, made by hammering cylindrical piece of tubing to form cone shaped anchor section |
US6523302B2 (en) * | 2000-12-04 | 2003-02-25 | Esmail Zayeratabat | One piece garden stake |
DE202008004967U1 (en) * | 2008-04-09 | 2008-07-17 | Cortec Gmbh | ground anchor |
Non-Patent Citations (1)
Title |
---|
See also references of EP2350409A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102008043709A1 (en) | 2010-05-20 |
EP2350409A1 (en) | 2011-08-03 |
US20110250977A1 (en) | 2011-10-13 |
CA2743919A1 (en) | 2010-05-20 |
AU2009315881A1 (en) | 2011-06-30 |
MX2011005065A (en) | 2011-09-01 |
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