EP2294264B1 - Dispositif de fondations pour poteaux, pieux et autres objets similaires - Google Patents

Dispositif de fondations pour poteaux, pieux et autres objets similaires Download PDF

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Publication number
EP2294264B1
EP2294264B1 EP09736025A EP09736025A EP2294264B1 EP 2294264 B1 EP2294264 B1 EP 2294264B1 EP 09736025 A EP09736025 A EP 09736025A EP 09736025 A EP09736025 A EP 09736025A EP 2294264 B1 EP2294264 B1 EP 2294264B1
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EP
European Patent Office
Prior art keywords
platter
post
elongated body
pile
ground
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Active
Application number
EP09736025A
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German (de)
English (en)
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EP2294264A2 (fr
Inventor
Arianna Mason
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vortek Srl
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Vortek Srl
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Publication of EP2294264A2 publication Critical patent/EP2294264A2/fr
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Classifications

    • 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
    • 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
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2269—Mounting poles or posts to the holder in a socket

Definitions

  • the present invention relates to a foundation device for posts, piles and the like.
  • the invention relates to a foundation device that can be fixed in the ground, for instance for supporting posts or vertical or inclined piles of different kinds, for instance for building palisades, fences, or for road signals, pylons, parasols, supporting structures and the like.
  • posts e.g. posts for hedges
  • various methods e. g. by means of pile drivers, by screwing, or by a combination of hitting and screwing.
  • Screw or helical piles are known. Screw piles have at their lower end some turns of a cylindrical spiral with cutting edge made of cast iron, steel or forged iron. The shape of the screw depends on the nature of the subsoil.
  • Helical piles have a lower end consisting of a cusp having four helical ribs, and they are generally fixed by percussion and are used in soils with medium consistency.
  • fixing the post in the ground comprises preparing a hole into which the post is to be driven, with or without the formation of a base of concrete or other hardening material.
  • the ground hardness is such that hole drilling is difficult: one can think of grounds covered with waterproofing layers, such as road surfaces, or of particularly hard grounds; in other cases, drilling a durable hole, giving sufficient time for driving the post, is difficult due to the low consistency of the soil (think for instance of a sandy soil), and often it is necessary to drill holes of greater diameter, which are to be filled with jets of concrete into which the post is to be previously embedded.
  • EP 1975345 teaches using a post foundation device consisting of a hollow conical body with an external helix, which device is fixed in the ground and into which the post can be inserted.
  • a post foundation device consisting of a hollow conical body with an external helix, which device is fixed in the ground and into which the post can be inserted.
  • such a device has the drawback that it requires use of a filling material capable of filling the hollow spaces that are created when the foundation device is screwed into the ground, in order to provide a sufficiently robust anchoring of the device in the ground.
  • DE 10 2005 045 574 A1 discloses a foundation device far posts, piles and the like, the device including a cylindrical section at the ground side with a neighboring conical section and a further cylindrical section.
  • the spiral screw is at the conical section for screwing into the ground.
  • the bottom cylindrical section has a pointed tip while the opposite end has means arranged to enable associating a bar for screwing the device into the ground.
  • a ground anchor for posts comprising a tube with screw part and stabilizer cap attached to help drive anchor into ground.
  • the stabilizer cap has a planar shape and at least one tooth extending in a downwards direction and can be fitted onto the tube and can be brought into contact with the soil.
  • the device according to the invention can be advantageously used for making a stable foundation for posts, piles and the like, in any type of ground, even covered with asphalt layers.
  • the foundation device can be effectively fixed in the ground by screwing it by means of a suitable tool, either hand-driven or power-driven, which can be subsequently removed and replaced by a post, a pile or the like.
  • the device according to the invention can be advantageously used for supporting posts of any material and with any cross-sectional shape, in particular posts made of steel, wood, cement, plastics, with circular, T-shaped, square etc. cross-section, by changing the shape of the hole in the platter..
  • foundation device 11 includes an elongated body 13, arranged to be fixed in the ground and having a length varying depending on the applications and the soil for which the device is intended, for instance 50 cm for supporting posts of fences in soils with medium consistency.
  • body 13 is so shaped as to define, at a first end 13a (upper end), a compression portion including a platter 15, arranged on a plane substantially perpendicular to longitudinal axis "S" of said elongated body 13.
  • the platter thus radially extends with respect to said axis, and it is arranged to axially compress (arrow F) ground surface ST when said body is fixed in the ground.
  • a guiding portion is provided, comprising a screw tip 17 enabling the introduction of the foundation device into ground TR through a rotational movement.
  • Body 13 preferably has a circular cross-section and has an internal axial cavity 19 extending over at least part (preferably at least 20%) of the length of body 13, starting from upper end 13a.
  • said body 13 preferably has an annular rib 21 radially extending inside cavity 19 and defining an abutment, inside cavity 19, for the base of the shaft of a post or a pile or the like inserted in the foundation device.
  • Platter 15 is preferably frusto-conical, with the major base directed towards body 13, and has a central hole 23 allowing access to internal cavity 19 of body 13.
  • platter 15 is equipped with a locking device 25 including a bracket 27, axially extending on platter 15 on the opposite side with respect to body 13.
  • the bracket has a threaded thoughhole 29 for a locking screw 31, arranged to radially engage the shaft of a post or a pile or the like that is partially received in hollow 19 and projects from the foundation device through hole 23 of platter 15.
  • said locking device 25 When said locking device 25 is in engagement configuration, said shaft cannot be rotated or removed from the foundation device.
  • platter 15 is brought in contact with ground surface ST when foundation device 11 is being fixed, and since the foundation device is preferably screwed into the ground, it is clear that the circular shape of platter 15 is preferable; however, other geometrical shapes, e.g. a square or hexagonal shape, are possible for platter 15.
  • said platter 15 will have a sufficient radial extension to ensure a large abutment surface against the ground, and therefore its diameter will be at least twice, preferably at least three times, the diameter of body 13.
  • screw tip 17 has some turns of a cylindrical spiral with cutting edge 33 and ends with a conical portion 35.
  • FIG. 3 an adapter 41 associated with foundation device 11 is shown, which adapter enables receiving in the foundation device thus obtained the base of the shaft of a post or a pile or the like having a different cross-section (in the case illustrated, a greater cross-sectional size) from the section of hole 23 and cavity 19.
  • Adapter 41 has a stem 43 whose shape and size are compatible with hole 23 and cavity 19, and a cylindrical body 45, defining a corresponding seat 47 for the base of the shaft of a post or a pile or the like, is associated with, for instance welded to, the stem.
  • cylindrical body 45 preferably has a radial hole 49 through which a radial screw for locking the shaft of the post or pile or the like received in seat 47 can pass.
  • stem 43 can be introduced into cavity 19 of body 13 through hole 23, and then locked by means of locking device 25.
  • a valiant embodiment of platter 15 is shown, in which the platter has a central portion 15a associated with, for instance welded to, body 13, and a second removable annular portion or ring 15b.
  • Securing means for instance some screws 18, in the example illustrated three screws spaced apart by 120°, are provided for securing ring 15b to central portion 15a
  • ring 15b can preferably be associated with body 13 by introducing tip 17 through the central opening of ring 15b and by locking screws 18 when ring 15b has been brought in contact with central portion 15a
  • platters 15 with the size and shape required by the different soil types, by simply replacing ring 15b, with a resulting considerable saving in production, distribution and storage of the foundation device.
  • platters 15 may have a size preferably in the range 15 to 50 cm in diameter.
  • FIG. 7 there is shown a second embodiment of the foundation device, generally denoted 111. Parts identical to those described above are denoted by the same reference numerals.
  • foundation device 111 has an elongated body 113 formed by a metal rod 114 twisted in form of a spiral, preferably cylindrical or conical, and arranged to be fixed in the ground.
  • a compression portion is defined, arranged to axially compress (arrow F) the ground surface when said body is fixed in the ground, said portion including a platter 115, radially extending with respect to said elongated body 113, and an axial seat 119 arranged to receive the base of the shaft of a post or a pile or the like.
  • a guiding portion is defined, arranged to facilitate the introduction of the foundation device into the ground through a rotational movement
  • metal rod 114 is twisted to a spiral so that axial seat 119 has a greater cross-sectional size than remaining portion 113b of body 113, each said portion being however preferably cylindrical with constant cross-sectional size.
  • device 111 is capable of receiving posts with larger sizes than the cross sectional size of guiding portion 113b, and moreover transition region 121 between both portions forms an abutment for the base of the shaft of the post or the like when the latter is inserted in seat 119.
  • the locking means include a frusto-conical plate 26 secured to platter 15 by means of an axial screw 28 adjacent to central hole 23.
  • plate 26 is advantageously radially deformed by compression towards the inside of hole 23, thereby assisting in locking post shaft PT the base of which is received in the foundation device.
  • FIGs. 10 there is shown a first embodiment of the tool guiding the descent of the foundation device according to the invention into the ground through a rotational movement.
  • tool 61 includes a corresponding T-shaped key having, at the base of shank 63, an insertion end 65 with half-circular cross-section, compatible with the cross-section of hole 23 in platter 15.
  • tool 61 can be gripped at the ends of control handle 67 and rotated to guide the descent of the foundation device into the ground
  • a platter 115 provided with a circular central hole 123 and two diametrically opposite holes 16, and a T-shaped key 71 provided, at the bottom of central shank 73, with a circular insertion end 75 arranged to engage hole 123 and with two axial pins 76 carried by radial arms and intended to engage holes 16 in platter 115.
  • tool 71 can be gripped at the ends of control handle 77 and rotated to guide the descent of the foundation device into the ground.
  • the foundation device according to the invention can also be fixed in the ground by using a power-driven tool.
  • FIG. 13 and 14 there is shown a third embodiment of the foundation device, generally denoted 211. Parts identical to those described above are denoted by the same reference numerals.
  • foundation device 211 includes a platter 215 formed of two frusto-conical portions 215a, 215b arranged one over the other and connected together by locking means 225, preferably consisting of one or more screws 228 that are secured in corresponding threaded holes 230 formed in lower platter portion 215a and that pass through radial slots 232 formed in upper platter portion 215b.
  • portions 215a, 215b of platter 215 are slidable relative to each other and, since they are frusto-conical, respective axes S, S' can be arranged at different angles.
  • axis S' of upper portion 215b and axis S of lower portion 215a are shown, defining an angle of about 5° between them.
  • lower platter portion 215a is secured, for instance welded, to upper end 13a of body 13, whereas upper platter portion 215b can be advantageously associated with a post or a post receiving member or the like 234, which can be mounted vertically or at any desired angle, by correcting alignment errors, if any, of body 13 once the latter has been fixed in the ground thanks to the mutual sliding of platter portions 215a, 215b.
  • FIGs. 15 and 16 there is shown a fourth embodiment of the foundation device, generally denoted 311. Parts identical to those described above are denoted by the same reference numerals.
  • foundation device 311 includes a platter 315 formed of two frusto-conical portions 315a, 315b arranged one over the other and connected together by locking means 325, preferably consisting of one or more screws 328 that are secured in corresponding threaded holes 330 formed in lower platter portion 315a and pass through holes 332 formed in upper platter portion 315b.
  • lower portion 315a of platter 315 is secured, for instance welded, to upper end 13a of body 13.
  • Both portions 315a, 315b of platter 315 have a respective central hole 336a, 336b allowing passage of a portion of a sphere 338 mounted idle, in correspondence of platter 315, in cavity 19 provided in body 13 of device 311.
  • said sphere 338 is associated with a post or a post receiving member or the like 334, which, by rotating sphere 338 inside cavity 19, can therefore be tilted so that its axis S' forms a desired angle ⁇ with axis S of body 13.
  • the tightening of screws 328 results in sphere 338 becoming locked between both platter portions 315a, 315b and hence in the impossibility of further changing said angle ⁇ .
  • alignment errors, if any, between axes S and S' can be corrected by rotating sphere 338 inside cavity 19 while assembling the device.
  • the foundation device according to the invention in the various embodiments described, can be made of steel or plastics or other suitable materials.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Claims (15)

  1. Dispositif de fondations (11 ;111) pour poteaux, pieux et autres objets similaires, le dispositif comportant un corps de forme allongée (13 ; 113), agencé en vue d'être fixé dans le sol et configuré de façon à définir au niveau d'une première extrémité (13a ; 113a), une partie de compression s'étendant radialement par rapport à l'axe longitudinal (S) dudit corps de forme allongée (13 ; 113) et agencé pour comprimer axialement la surface du sol lorsque ledit corps de forme allongée (13 ; 113) est fixé dans le sol, ladite partie de compression incluant une bride (15 ; 115 ; 215 ; 315) disposée sur un plan essentiellement perpendiculaire à l'axe longitudinal (S) dudit corps de forme allongée (13 ; 113) et s'étendant radialement par rapport au dit axe, ladite bride étant disposée afin de comprimer axialement la surface du sol lorsque ledit corps de forme allongée (13 ; 113) est fixé dans le sol, et de façon à définir, au niveau de l'extrémité opposée (13b ; 113b), une vis ou une partie de guidage hélicoïdale, ladite première extrémité (13a, 113a) étant, de plus, dotée de moyens agencés pour permettre d'associer un poteau, un pieu ou un autre objet similaire au dit dispositif, lesdits moyens comportant une cavité axiale (19 ; 119) s'étendant sur une partie au moins de la longueur de ladite première extrémité et agencée pour recevoir la base du tronc d'un poteau, d'un pieu ou d'un autre objet similaire, caractérisé en ce que ladite bride (15 ; 115 ; 215 ; 315) présente un diamètre d'au moins deux fois le diamètre dudit corps de forme allongée et en ce que ladite bride (15 ; 115 ; 215 ; 315) est tronconique, la grande base étant dirigée vers le corps de forme allongée (13 ; 113), et présente un trou central (23) permettant l'accès à ladite cavité interne (19 ; 119) dudit corps de forme allongée (13) qui reçoit le tronc d'un poteau, d'un pieu ou d'un autre objet similaire.
  2. Dispositif selon la revendication 1, dans lequel ladite bride (15 ; 115 ; 215 ; 315) est de forme circulaire, carrée ou hexagonale.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, dans lequel ladite bride (15 ; 115 ; 215 ; 315) est, de plus, dotée d'un dispositif de verrouillage (25) incluant une extension (27), s'étendant axialement sur la bride du côté opposé par rapport au corps de forme allongée (13) et comportant un trou de passage taraudé (27) destiné à une vis de blocage (31) disposée afin de s'engager radialement avec le tronc d'un poteau ou d'un pieu ou d'un autre objet similaire dont la base est reçue dans le dispositif de fondations.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, dans lequel ladite bride (15 ; 115 ; 215 ; 315) est, de plus, dotée d'un dispositif de verrouillage (125) comportant une plaque (26) fixée sur la bride (15) au moyen d'une vis axiale (28) de façon adjacente au trou central (23) formé dans la bride, ladite plaque (26) étant agencée en vue de se déformer radialement vers l'intérieur dudit trou (23) de façon à aider au verrouillage du tronc du poteau, du pieu ou d'un autre objet similaire dont la base est reçue dans le dispositif de fondations.
  5. Dispositif selon l'une quelconque des revendications précédentes, dans lequel un adaptateur (41) est prévu, lequel peut être associé au dispositif de fondations (11) et comporte une tige (43) présentant, associée à elle, un corps cylindrique (45) définissant une embase correspondante (47) destinée à la base du tronc d'un poteau, d'un pieu ou d'un autre objet similaire , permettant, de ce fait, de recevoir la base du tronc d'un poteau, d'un pieu ou d'un autre objet similaire dans le dispositif de fondations.
  6. Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite partie de guidage comporte une extrémité en forme de vis (17) agencée pour permettre l'introduction du dispositif de fondations dans le sol par un mouvement de rotation.
  7. Dispositif selon la revendication 6, dans lequel l'extrémité en forme de vis (17) porte quelques tours d'une spirale cylindrique (33) présentant un bord de coupe et s'achève par une partie conique (35).
  8. Dispositif selon la revendication 1, dans lequel ledit corps de forme allongée (13 ; 113) présente une nervure annulaire (21) s'étendant radialement à l'intérieur de la cavité (19 ; 119) et définissant une partie de butée correspondante pour la base du tronc d'un poteau, d'un pieu ou d'un autre objet similaire inséré dans le dispositif de fondations (11 ; 111).
  9. Dispositif selon la revendication 1, dans lequel ladite bride (15 ; 115 ; 215 ; 315) présente une partie centrale (15a) associée au corps de forme allongée (13 ; 113) et une seconde partie annulaire ou bague (15b) qui est amovible, des moyens de verrouillage étant fournis pour bloquer ensemble lesdites deux parties de la bride.
  10. Dispositif selon la revendication 1, dans lequel ledit corps de forme allongée (13 ; 113) est formé à partir d'une tige métallique (114) torsadée en spirale et agencée pour être fixée dans le sol.
  11. Dispositif selon la revendication 10, dans lequel ladite tige métallique (114) est torsadée en spirale de façon que l'embase axiale (19 ; 119) présente une dimension de section transversale plus grande que la partie restante (113b) du corps de forme allongée (113).
  12. Dispositif selon la revendication 1, dans lequel ladite bride (215) est formée de deux parties tronconiques (215a, 215b) disposées l'une sur l'autre de façon à pouvoir coulisser l'une par rapport à l'autre et raccordées ensemble par des moyens de verrouillage (225), la première desdites parties étant associée au dit corps de forme allongée (13 ; 113) et la seconde desdites parties étant agencée en vue de supporter un poteau, un pieu ou un autre objet similaire.
  13. Dispositif selon la revendication 12, dans lequel lesdits moyens de verrouillage comprennent une ou plusieurs vis (228) qui est (sont) fixée(s) dans des trous taraudés correspondants (230) formés dans la première partie (215a) de ladite bride et qui passent à travers des fentes (232) formées dans la seconde partie (215b).
  14. Dispositif selon la revendication 1, dans lequel ladite bride (315) est formée de deux parties tronconiques (315a, 315b) disposées l'une sur l'autre, lesdites parties de bride (315a, 315b) présentant un trou central respectif (336a, 336b) permettant le passage d'une partie d'une sphère (338) montée au repos en correspondance avec ladite bride (315), un poteau, un élément de réception d'un poteau ou un autre objet similaire (334) étant associé de façon correspondante à la partie de sphère faisant saillie à l'extérieur de la bride (315).
  15. Dispositif selon la revendication 14, dans lequel ladite bride comporte des moyens de verrouillage pour bloquer la rotation de ladite sphère.
EP09736025A 2008-04-21 2009-04-02 Dispositif de fondations pour poteaux, pieux et autres objets similaires Active EP2294264B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBI20080005 ITBI20080005A1 (it) 2008-04-21 2008-04-21 Supporto per pali
PCT/IB2009/051399 WO2009130625A2 (fr) 2008-04-21 2009-04-02 Dispositif de fondations pour poteaux, pieux et autres objets similaires

Publications (2)

Publication Number Publication Date
EP2294264A2 EP2294264A2 (fr) 2011-03-16
EP2294264B1 true EP2294264B1 (fr) 2012-08-29

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EP (1) EP2294264B1 (fr)
IT (1) ITBI20080005A1 (fr)
WO (1) WO2009130625A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2954788B1 (fr) * 2009-12-24 2012-01-27 Ancrest S A Dispositif d'ancrage dans un sol multicouches
CN102071682A (zh) * 2011-01-20 2011-05-25 中铁二十二局集团有限公司 岩溶发育地区高强度岩层桥梁钻孔桩斜孔纠偏方法
ITMI20110853A1 (it) * 2011-05-16 2012-11-17 Ack Ventures S R L Elemento di ancoraggio a terra per almeno una struttura portante
IT201800003784A1 (it) * 2018-03-20 2019-09-20 Vaer S R L Bussola ed un metodo per la realizzazione di palizzate
WO2022076944A1 (fr) * 2020-10-09 2022-04-14 Hubbell Incorporated Supports pour pieux hélicoïdaux

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001252791B2 (en) * 2000-04-10 2006-10-19 Clifford Alan Parker An anchor device
DE10250257B4 (de) * 2001-12-12 2010-05-12 Erich Haimerl Straßenleitpfostenfuß
WO2004020744A1 (fr) * 2002-09-02 2004-03-11 Colin William Francis Pilier
DE20304257U1 (de) * 2003-03-17 2003-05-22 Hsu, Shih Hao, Bi Tou Hsiang, Changhua Bodenanker mit Montageaufbau
DE102005023465B3 (de) * 2005-05-20 2007-01-18 Krinner Innovation Gmbh Befestigungssystem zum Ausrichten und Befestigen eines stab- oder pfostenförmigen Gegenstandes im Erdboden
DE102005045574A1 (de) * 2005-09-23 2007-04-12 "DOMA"-Autozubehör und Industriebedarf GmbH Drehfundament zur Verankerung im Erdboden
EP1975345A3 (fr) * 2007-03-28 2014-05-14 Krinner Innovation GmbH Dispositif de fondation pour éléments de construction devant être ancrés dans la terre
DE202007008228U1 (de) * 2007-06-12 2007-08-23 Gross, Manfred Leitpfostenhalterung
DE202008010913U1 (de) * 2008-08-14 2008-11-06 Krinner Innovation Gmbh Schraubfundamentsystem mit aushärtbarer Füllmasse

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WO2009130625A2 (fr) 2009-10-29
ITBI20080005A1 (it) 2008-07-21
WO2009130625A3 (fr) 2010-07-15
EP2294264A2 (fr) 2011-03-16

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