EP4437203A1 - Verfahren zur herstellung eines schraubfundamentes - Google Patents
Verfahren zur herstellung eines schraubfundamentesInfo
- Publication number
- EP4437203A1 EP4437203A1 EP22821939.0A EP22821939A EP4437203A1 EP 4437203 A1 EP4437203 A1 EP 4437203A1 EP 22821939 A EP22821939 A EP 22821939A EP 4437203 A1 EP4437203 A1 EP 4437203A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- contour
- rear end
- screw
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
-
- 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
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
-
- 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
- B21D53/00—Making other particular articles
- B21D53/60—Making other particular articles cutlery wares; garden tools or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
-
- 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
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
-
- 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
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
Definitions
- the invention relates to a method for producing a screw foundation for fastening elements in a substructure, in which at least one first cylindrical tube is provided as the first initial form and the first tube is provided with a thread-like outer contour at least in regions adjacent to a front insertion end for screwing into the substructure is, wherein a contour for a screw-in tool is formed in a rear end of the first tube by forming.
- Ground screws are known in various designs. They can be designed at the rear end for the insertion of posts or rods or alternatively have a plate or flange-like attachment attachment at the rear end to which other elements, e.g. frames or the like, can be attached.
- a method with the features of the preamble of patent claim 1 is known from DE 10 2019 128 030 B3.
- a cylindrical tube is provided as the starting form, onto which a conical front section tapering to an insertion point is formed without cutting.
- the front section is provided at least in regions with a thread-like outer contour for screwing into the ground.
- an inner contour for a rear end of the tube by flow-forming Screwing tool is formed and that the front portion and the thread-like outer contour are formed exclusively by flow-forming.
- the screw foundation is thus produced solely by flow-forming, as a result of which the production effort is low and precise and reproducible components can be produced.
- Either the inner contour can be formed first and then the front section and the thread-like outer contour, or vice versa.
- a drawn or welded tube can be used as the initial form.
- the object of the invention is to create a solution which creates a screw foundation that is easy to produce and that is suitable for any soil conditions and preferably any penetration depths.
- This object is achieved according to the invention in a method of the type described above in that the rear tubular end of the first tube is formed radially from the outside without an inner counter-mold in such a way that the contour is star-shaped, having internal and external teeth.
- the contour at the rear end of the screw foundation is thus formed without cutting from the outside, with both internal and external teeth is formed.
- the external and internal teeth are used for the non-rotatable connection with a screw-in tool with complementary toothing contour, the internal teeth are suitable for non-rotatably receiving a tubular extension element, resulting in an at least two-part screw foundation.
- the internal toothing is suitable for accommodating a plate-like or flange-like attachment attachment, the attachment attachment being equipped with a contour corresponding to the star-shaped contour. Due to the star-shaped contour, large torques can be transmitted, which enable screwing into subsurfaces with any soil conditions.
- the star-shaped contour can be designed in a similar way to a screw drive profile with the standard designation hexalobular or hexalobular, but with any number of teeth.
- the rear end of the first tube is formed by a plurality of forming tools which are arranged on a common circumference and can be uniformly radially advanced.
- the forming tools can be, for example, spinning or pressing tools.
- a conical front section tapering to an insertion point is formed onto the first tube without cutting, the front section being provided at least in regions with the thread-like outer contour for screwing into the subsoil.
- the insertion tip can also be omitted and the front edge can be provided with a cutting edge similar to a hollow-hole drill. In both cases, when screwing in, the longer or shorter thread-like outer contour pushes the subsoil outwards and compacts it, which improves the hold of the screw foundation in the subsoil.
- subsoil material also penetrates into the front area of the screw foundation and presses the lateral surface of the screw foundation outwards, which results in even better anchoring in the subsoil.
- the front section and the thread-like outer contour are formed exclusively by flow-forming.
- the contour is clamped at the rear end of the first tube during flow-forming.
- the clamping tool has a contour which is complementary to the star-shaped contour of the rear end.
- the strength and shaping of the contour at the rear end of the pipe is further improved by pressing down during clamping, with the clamping tool preferably having a complementary inner mandrel.
- At least one second cylindrical tube is provided as the second starting shape and that the two tubular ends of the second tube are each pressed in radially from the outside to form a star-shaped contour having internal and external teeth without an internal counter-shape.
- the contour at one end of the second tube corresponds to the contour at the rear end of the first tube and the contour at the other end of the second tube is designed in such a way that the other end of the second tube fits into or onto the rear end with a non-positive and/or positive fit of the first tube is pluggable.
- the screw foundation then advantageously consists of at least two parts, namely the element produced from the first tube and at least one extension element which can be inserted into the aforementioned element in a rotationally fixed manner at the rear.
- the second tube is also preferably provided at least in regions with a thread-like outer contour for screwing into the subsoil, e.g. by flow-forming.
- the ends of the first and second tube that are inserted into one another are secured to one another by at least regionally radial pressing in the region of the contours.
- a suitable ring-shaped tool balls, hemispheres or the like geometric bodies are pressed into the external teeth of the outer contour, which form inward beads in the two nested star-shaped contours, which secure the two components together in a form-fitting manner, whereby the tensile-compressive load on the screw foundation is increased.
- first tube and/or the at least one second tube consist of Corten steel.
- the screw foundation is then particularly resistant to corrosion.
- FIG. 1 is a perspective view of a screw foundation
- FIG. 2 shows an enlarged representation of the rear end of the screw foundation according to FIG. 1,
- FIG. 3 shows a perspective view of a cylindrical tube as the first starting form
- FIG. 4 shows a side view of the rear pipe end of the screw foundation with radially adjustable forming tools before forming
- FIG. 5 shows a representation corresponding to FIG. 4 during the forming
- FIG. 6 shows a perspective view of a tubular extension element for forming a two-part screw foundation
- FIG. 7 shows a perspective view of the front end of the extension element according to FIG. 6, 8 shows a perspective view of the rear end of the extension element according to FIG. 6,
- Fig. 10 shows an enlarged detail of Fig. 9,
- Fig. 12 shows a perspective view of the connection area of the two-part screw foundation according to Fig. 11 and in
- FIG. 13 shows the connection area according to FIG. 12 with additional locking means.
- a one-piece ground screw is generally designated 1 in FIG.
- this ground screw 1 has a rear end la and a front end lb.
- a star-shaped contour 2, described in more detail below, is formed into the rear, tubular end 1a.
- the ground screw 1 has a cylindrical region 1c and, adjoining it to the front, a front section ld tapering conically to an insertion tip 3 at the front end lb.
- Both the front section 1d and the cylindrical area 1c are provided at least in some areas with a thread-like outer contour 4, which is preferably formed exclusively by flow-forming.
- a thread-like outer contour 4 which is preferably formed exclusively by flow-forming.
- a first cylindrical tube 5 is provided as the first starting form.
- This tube 5 can be a drawn or welded metal tube.
- the star-shaped contour 2 is first formed into one end of the tube 5, which forms the rear end 1a of the screw foundation 1, in such a way that it has internal teeth 2a and external teeth 2b.
- the rear end of the first tube 5 is introduced into a suitable forming device which has a plurality of forming tools 6 which are arranged on a common circumference and can be uniformly radially advanced (FIG. 4).
- the forming tools 6 are evenly moved inwards onto the end of the first tube 5, so that the star-shaped contour 2, having an internal toothing 2a and an external toothing 2b, is formed without an internal counter-shape.
- the wall thickness of the first tube 5 essentially does not change.
- the outer contour of the forming tools 6 essentially corresponds to the contour of the outer toothing 2a to be formed of the star-shaped contour 2.
- the first tube 5 is preferably inserted with its rear end with the star-shaped contour 2 into a clamping and holding tool of a complementary design of a flow-forming machine.
- the first pipe 5 is then formed into the shape of the finished ground screw 1 shown in FIG. 1, preferably by flow-forming, reference being made to publication DE 10 2019 128 030 B3 for the execution of the flow-forming processes.
- the pipe 5 can optionally first be ironed, but ironing can also be dispensed with.
- the insertion tip 3 is preferably closed in a suitable manner.
- the screw foundation 1 can also be cylindrical over its entire length, i.e. have no insertion tip 3.
- the star-shaped contour 2 at the rear end la of the ground screw 1 has a dual function.
- the external teeth 2b are used for connection to a correspondingly complementary screw-in tool, not shown.
- the internal toothing 2a is used for power and/or or form-fitting reception of a tubular extension element 7 to form a two-part screw foundation 1.
- a second cylindrical tube is provided as the second starting shape. Both in the front end 7a and in the rear end 7b of the extension element 7, a star-shaped contour 8, 9 is shown in the same way as in FIGS radial impressions formed from the outside without inner counter-mould.
- the contour 8 at the front end 7a of the extension element 7 is dimensioned in such a way that the front end 7a can be inserted into the rear end 1a of the screw foundation 1 in a non-positive and/or positive manner.
- the star-shaped contour 9 at the rear end 7b corresponds to the star-shaped contour 2 of the screw foundation 1, so that the rear end 7b of the extension element 7 is suitable, on the one hand, for being coupled to the screw-in tool or, on the other hand, for receiving a further extension element 7.
- the cylindrical area 7c between the two ends 7a and 7b of the extension element 7 is preferably also provided with a thread-like outer contour 10 by flow-forming.
- a two- or multi-part ground screw 1 which consists of the ground screw 1 according to FIG. 1 and at least one extension element 7, the front end 7a of the extension element 7 is on site according to the sequence of FIGS. 9 to 12 in the rear
- the end la of the screw foundation 1 is positively and/or non-positively inserted.
- balls 11 or hemispheres or similar geometric bodies are inserted into the external teeth 2a of the Screw foundations 1 are pressed in, which form inward beads in both the star-shaped contour 2 and in the star-shaped contour 8, which secure the two components together in a form-fitting manner, whereby the tensile and compressive load on the screw foundation is increased.
- star-shaped contours 2, 7 and 8 shown is only one exemplary embodiment.
- the number of teeth shown can also be selected differently.
- a plate-like or flange-like attachment attachment (not shown) can also be inserted into the rear end 1a or 7b and possibly locked by means of balls 11, the attachment attachment being equipped with a contour corresponding to the star-shaped contour 8.
- the mounting attachment with a star-shaped contour can be produced, for example, by deep-drawing.
- Other elements, for example frames or the like, can be attached to such an attachment attachment.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021130720.1A DE102021130720B3 (de) | 2021-11-24 | 2021-11-24 | Verfahren zur Herstellung eines Schraubfundamentes |
| PCT/EP2022/082851 WO2023094395A1 (de) | 2021-11-24 | 2022-11-22 | Verfahren zur herstellung eines schraubfundamentes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4437203A1 true EP4437203A1 (de) | 2024-10-02 |
| EP4437203C0 EP4437203C0 (de) | 2025-12-24 |
| EP4437203B1 EP4437203B1 (de) | 2025-12-24 |
Family
ID=84487622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22821939.0A Active EP4437203B1 (de) | 2021-11-24 | 2022-11-22 | Verfahren zur herstellung eines schraubfundamentes |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4437203B1 (de) |
| DE (1) | DE102021130720B3 (de) |
| WO (1) | WO2023094395A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022113309B3 (de) | 2022-05-25 | 2023-09-07 | Winkelmann Foundation Screw Sp. Z O.O. | Verfahren zur Herstellung eines Schraubfundamentes |
| DE102023115353A1 (de) | 2023-06-13 | 2024-12-19 | Winkelmann Foundation Screw Sp. Z O.O. | Verfahren zur Herstellung eines rohrförmigen Schraubfundamentes |
| DE102024124497A1 (de) | 2024-08-28 | 2026-03-05 | Winkelmann Foundation Screw PL spółka z ograniczoną odpowiedzialnością sp.k. | Schraubfundament |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH579427A5 (de) * | 1975-02-24 | 1976-09-15 | Grob Ernst Fa | |
| DE8530749U1 (de) | 1985-10-30 | 1986-03-13 | Gebr. Sträb GmbH & Co, 7317 Wendlingen | Vorrichtung zum Befestigen von stabförmigen Gegenständen, insbesondere Pfosten, im Erdreich |
| DE20220515U1 (de) | 2002-06-14 | 2003-10-09 | Krinner Innovation GmbH, 94342 Straßkirchen | Befestigungsvorrichtung in der Form eines hülsenartigen Körpers für Stäbe, Pfosten, Masten o.dgl. im Erdreich |
| GB0506909D0 (en) * | 2005-04-05 | 2005-05-11 | Fergus Johnathan A | An anchoring device |
| DE102007001833B4 (de) | 2007-01-12 | 2014-08-21 | Krinner Innovation Gmbh | System zur Verankerung eines Mastes, Pfostens oder dergleichen im Erdreich und Verwendung einer Befestigungsvorrichtung und eines Mastes, Pfostens oder dergleichen in einem solchen System |
| DE102007027545B4 (de) | 2007-06-15 | 2014-07-03 | Krinner Innovation Gmbh | System und Verfahren zum Befestigen eines stab- oder pfostenförmigen Gegenstandes im Erdboden mit in den Erdboden einschraubbarem mehrteiligen Aufnahmeteil |
| WO2009112074A1 (de) * | 2008-03-13 | 2009-09-17 | Ernst Grob Ag | Vorrichtung und verfahren zur erzeugung verzahnungsartiger profilierungen in werkstücken |
| DE102019128030B3 (de) | 2019-10-17 | 2020-10-01 | Winkelmann Powertrain Components GmbH & Co. KG. | Verfahren zur Herstellung eines Schraubfundamentes zur Befestigung von Elementen im Erdreich |
| DE202019105845U1 (de) | 2019-10-21 | 2019-12-10 | Alexander Purt | Bodendübelsystem |
| AT16939U1 (de) | 2019-12-18 | 2020-12-15 | Purt Alexander | Bodendübel |
-
2021
- 2021-11-24 DE DE102021130720.1A patent/DE102021130720B3/de active Active
-
2022
- 2022-11-22 EP EP22821939.0A patent/EP4437203B1/de active Active
- 2022-11-22 WO PCT/EP2022/082851 patent/WO2023094395A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021130720B3 (de) | 2023-03-30 |
| WO2023094395A1 (de) | 2023-06-01 |
| EP4437203C0 (de) | 2025-12-24 |
| EP4437203B1 (de) | 2025-12-24 |
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