EP1518976A1 - Pfahl mit herausragenden Widerhaken - Google Patents

Pfahl mit herausragenden Widerhaken Download PDF

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Publication number
EP1518976A1
EP1518976A1 EP03103579A EP03103579A EP1518976A1 EP 1518976 A1 EP1518976 A1 EP 1518976A1 EP 03103579 A EP03103579 A EP 03103579A EP 03103579 A EP03103579 A EP 03103579A EP 1518976 A1 EP1518976 A1 EP 1518976A1
Authority
EP
European Patent Office
Prior art keywords
tube
post
claws
nut
stake
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.)
Withdrawn
Application number
EP03103579A
Other languages
English (en)
French (fr)
Inventor
André Nicolet
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP03103579A priority Critical patent/EP1518976A1/de
Priority to DE602004004667T priority patent/DE602004004667T2/de
Priority to EP04787228A priority patent/EP1664463B1/de
Priority to CNB200480027058XA priority patent/CN100445510C/zh
Priority to US10/573,638 priority patent/US7497053B2/en
Priority to AT04787228T priority patent/ATE353389T1/de
Priority to ES04787228T priority patent/ES2281837T3/es
Priority to PCT/EP2004/052330 priority patent/WO2005031091A1/fr
Priority to CA2537538A priority patent/CA2537538C/fr
Publication of EP1518976A1 publication Critical patent/EP1518976A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • E02D5/805—Ground anchors with deformable anchoring members
    • 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
    • E04H12/223—Sockets or holders for poles or posts not used driven into the ground with movable anchoring elements; with separately driven anchor rods

Definitions

  • the present invention relates to a stake comprising claws anchoring anchors for anchoring in a field of various objects, in particular for anchoring locating terminals, such as those used by geometers, poles of any kind, including fence posts, support posts for traffic signs.
  • Anchor stakes for marker posts have long been known in many variants. These stakes must maintain ground bounds for several decades reliably despite the various attacks that this type of object can undergo, such as ground movements, farm vehicle passages or farm animals. Many solutions have already been proposed for increase the pull-out resistance of these stakes. We can globally group them into two classes.
  • the first class of stake uses a geometry anchoring system fixed.
  • US 4,738,760 discloses such a peg for anchoring to the ground a Permanent marker of object buried in the ground.
  • the stake includes a long body terminated at one end by a striking head and at a second end by a plurality of slightly bent elastic fins, arranged radially and directed outward of the post in the direction opposite to the point so as to form a harpoon.
  • the elastic fins fold up along the body under the thrust soil moved by penetration of the stake. If the stake is subsequently submitted a traction, the elastic fins unfold because their part slightly bent tends to anchor in the surrounding soil as a result of the elastic return force of the elastic fins.
  • the second picket class provides deployable elements.
  • a peg has a longitudinal body of tubular section containing deployable elements.
  • the stake is previously sunk into the ground and then it gets inside its tubular section a long rod terminated by a mandrel.
  • This stem comes to rely on deployable elements and forces them out of the body of the picket through guide holes when the mandrel is substantially thrust axial.
  • the appropriately sized guide holes and the floor curve the deformable elements in the course of their exit to the outside according to trajectories more or less helical.
  • This type of stake currently has the widest diffusion among the market of anchoring products for surveyor, but it nevertheless has certain disadvantages.
  • Deformable elements are usually placed in the axial extension of the post and in the same meaning that of the force necessary to the depression of the stake. This geometry does not have optimum pull-out capabilities. In effect, under the effect of a pull on the stake, the deployable elements have tendency to give way.
  • the object of the present invention is to propose a stake with a system anchor providing improved tear resistance. This goal is achieved with a stake according to claim 1.
  • a picket anchoring an object in a terrain comprises a tube with a tube wall, a driving tip and a head opposite the penetration point, the tube wall comprising at least two openings, and the driving point defining a direction of depression picket in the field. It further comprises deformable anchoring claws, which are mounted with one end on a movable claw holder axially inside the tube, so that the claws are deployable radially out of the tube through openings in the tube wall.
  • the claws are arranged on the claw support so as to be deployable by axial traction exerted on the claw support in the opposite direction to the driving direction, and openings have a geometry such that they cause a deployment of Angled anchoring claws along the tube in the direction of pulling.
  • a picket allows the anchor claws to be deployed in the same direction as the force that the stake would suffer during an attempt to extract.
  • the management of deployment of the claws directly opposes the extraction effort, allowing to obtain optimal resistance to tearing.
  • the external form of picket without discontinuity, before deployment of the claws, facilitates the penetration picket in the ground.
  • the claws being inside the peg during the depression of the stake, a deformation or break of the claws is excluded.
  • the claws can be deployed in a medium which has not been weakened by the depression of the stake.
  • the depression of the post locally tamped the middle around the stake. This packed medium provides a very good grip for anchoring claws.
  • the stake has a harpoon shape once the claws are deployed.
  • the shape of the harpoon allows a very good anchoring in multiple environments.
  • the claw support advantageously comprises a rod on which claws are fixed axially spaced.
  • the peg is associated with a detachable actuating mechanism which is able to bear on the tube head and to mate with the support of claws to transmit axial traction.
  • a detachable actuating mechanism which is able to bear on the tube head and to mate with the support of claws to transmit axial traction.
  • a helical or bonded coupling is used. bayonet between the removable actuating mechanism and the support of claws. These types of simple and easily achievable connections are suitable for transmit high efforts while allowing for implementation and very fast disassembly. This increases the flexibility of use of such stake.
  • the removable actuating mechanism includes a threaded rod and a nut.
  • the nut is able to bear on the head of the tube, and the threaded rod is screwed into the nut and is able to be engaged in the tube to be coupled to the claw holder. The latter is blocked in rotation in the tube, so that a rotation of the nut in a first direction causes a translation of the threaded rod towards the outside of the tube to exert traction on the claw support.
  • a peg according to the invention also makes it possible to retract the anchoring claws, so that the stake can be retrieved again. he is sufficient for this purpose to exert on the support of claws an axial thrust, that is to say a force opposite to the axial traction which produced the deployment of the claws anchor.
  • an axial thrust that is to say a force opposite to the axial traction which produced the deployment of the claws anchor.
  • a blocking means that can be connected to the tube head of way to form a counter-support for the nut when it is turned in a second direction opposite to the first, to cause a translation of the rod threaded towards the inside of the tube and thus bring the claws into the tube.
  • the nut comprises a base and the tube head comprises a collar
  • the means blocking may be a simple jumper placed astride the base of the nut and the neck of the tube.
  • the claw holder comprises a nut displaceable in axial translation but locked in rotation in the tube.
  • the stake then comprises a threaded rod with a head that takes support on the tube head and which is screwed into the nut, so that a rotation of the threaded rod in a first direction causes a translation of the nut towards the head of the tube to exert the traction on the support of claws.
  • the threaded rod with head can remain permanently in the stake or can be removed after deployment of the anchoring claws.
  • Retraction anchor claws is also possible using a counter-support as described above.
  • the claw holder comprises a shank substantially coaxial with the stake.
  • the deformable anchoring claws are arranged, before deployment, along the stem, their lower ends being connected to the stem and their upper ends engaged in the openings.
  • the undeployed claws are arranged compactly to inside the stake.
  • the latter has an outer surface substantially without protrusion, which facilitates the penetration of the stake in the ground.
  • Fig. 1 illustrates a preferred embodiment of a peg 10 according to the invention, the post 10 being driven into a medium 12, for example a ground.
  • the stake 10 comprises a tube 14 having at one end a tip 16 and being open at its other end 18.
  • the end 18 of the tube 14 is provided with a head plate 22 (also called a tube head) forming a collar.
  • the tube 14 has, in the embodiment shown, a square section.
  • a central rod 24 is disposed inside the tube 14.
  • This central rod 24 is provided with a plurality of anchoring claws 28 integral with their part lower of the central rod 24. As seen in Fig.1, before deployment, the claws are arranged along the rod 24.
  • the anchoring claws 28 are preferably of flexible steel, but may be of any other material allowing a plastic or elastic deformation of the claws without break during of their deployment.
  • the tube 14 comprises in its side wall 26 a plurality of openings 30. These receive the curved upper ends 32 of the claws anchoring 28 which, before deployment, do not protrude from the side wall 26 of the tube 14 and which are entirely housed in the tube 14. It will be noticed that the curved upper ends 32 and the openings 30 are spaced not only circumferentially around the tube 14 but also axially along the tube 14. The axial distribution of the claws 28 increases the chances of a good anchoring by avoiding a possible heterogeneity of middle 12 if it had to present areas more or less furniture to different depths.
  • the number of openings 30 and anchor claws 17 can be selected according to the nature of the medium 12 or the which the present invention will face.
  • the first phase of implementation of post 10 consists in driving it down using a suitable tool, such as a hammer or a heavy hammer, in the field 12.
  • a suitable tool such as a hammer or a heavy hammer
  • Fig. 2 illustrates the second phase of implementation of the stake 10: the establishment of a detachable actuating mechanism 33.
  • the mechanism actuator 33 fits on the head 22 of the tube 14 and comprises a rod threaded 36 and a nut 40. This mechanism is installed in practice in the manner next. Through an opening 34 in the head plate 22 is introduced the threaded rod 36 on which is screwed the nut 40.
  • the lower end 42 of the threaded rod 36 has a tapped bore 44 and is screwed on one end threaded 44 'of the central rod 24, so as to obtain a connection allowing transmit a tensile force on the central rod 24.
  • Those skilled in the art will not However, there is no difficulty in finding other coupling systems suitable for constitute such a link.
  • a possible variant to a helical link between two threads is for example a bayonet coupling.
  • the central rod 24 is locked in rotation in the tube 14 using a square plate 45 fitted in square section of the tube 14. If the tube 14 had a circular section, it would be necessary, for example, to provide the inside of the tube 14 an axial guide which prevents the rotation of the plate 45.
  • the nut 40 is then screwed to the post 10, until it bears on the head plate 22.
  • the nut 40 is rotated by pressing on the head plate 22 with the aid of a key (not shown) in the direction of arrow 49.
  • the rotation in the direction of the arrow 47 of the nut 40 bearing on the head plate 22 causes a translation of the central rod 24 in the direction of the arrow 47, naturally provided that the threads of the nut 40 and the threaded rod 36 have a right step.
  • the claws anchor 28 are pushed through the openings 30 of the tube 14, for enter the adjacent field 12.
  • openings 30 are bevelled so that the anchoring claws 28 are guided, starting with the curved upper ends 32, in bias along the tube 14 in the direction of the arrow 47, that is to say in the direction traction.
  • the trajectory of the anchoring claws 28 is determined for a the geometry of the openings 30, as well as the resistance to the opposite penetration by the medium 12. It will be appreciated that after deployment of the claws 28, the post 10 is firmly anchored in the field 12 in the manner of a harpoon. Indeed, the anchoring claws 28 present then an optimal opposition to any effort to extract the stake 10 of the land 12.
  • Fig. 4 shows post 10 which is anchored in the ground. Threaded rod 36 was unscrewed from the central rod 24 and removed together with the nut 40.
  • Fig. 5 illustrates the first recovery phase of stake 10.
  • Stem threaded 36 is again screwed onto the threaded end 44 'of the central rod 24, in the same way as during the anchoring phase of post 10.
  • a jumper 50 is straddling the head plate 22 of the tube 14 and on a base plate 51 of the nut 40.
  • a leg of the rider 50 is supported on the underside of the head plate 22 and the other leg forms a counter-support for the face upper plate 51 of the nut 40.
  • the nut 40 is then rotated using a wrench (not shown) to obtain penetration indoors of the tube 14 of the threaded rod 36.
  • the central rod 24 is also translated towards the tip 16 of the tube 14.
  • Fig. 6 shows the anchoring claws 28 fully retracted inside the tube 14 as a result of the proper rotation of the nut 40 in the direction of arrow 49 '.
  • the beveled edges of the openings 30 facilitate the retraction of the anchoring claws 28 and prevent their breaking, so that the post 10 can be reused after its extraction from the ground 12.
EP03103579A 2003-09-26 2003-09-26 Pfahl mit herausragenden Widerhaken Withdrawn EP1518976A1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP03103579A EP1518976A1 (de) 2003-09-26 2003-09-26 Pfahl mit herausragenden Widerhaken
DE602004004667T DE602004004667T2 (de) 2003-09-26 2004-09-27 System zur Verankerung eines Objekts im Boden mittels eines Pfahls
EP04787228A EP1664463B1 (de) 2003-09-26 2004-09-27 System zur Verankerung eines Objekts im Bodem mittels eines Pfahls
CNB200480027058XA CN100445510C (zh) 2003-09-26 2004-09-27 用于利用栓钉将物件固定在地基中的系统
US10/573,638 US7497053B2 (en) 2003-09-26 2004-09-27 System for fixing an object in the ground by means of a peg
AT04787228T ATE353389T1 (de) 2003-09-26 2004-09-27 System zur verankerung eines objekts im bodem mittels eines pfahls
ES04787228T ES2281837T3 (es) 2003-09-26 2004-09-27 Sistema para el anclaje de un objeto en el suelo con la ayuda de un piquete.
PCT/EP2004/052330 WO2005031091A1 (fr) 2003-09-26 2004-09-27 System pour l’ancrage d’un objet dans le sol a l’aide d’un piquet
CA2537538A CA2537538C (fr) 2003-09-26 2004-09-27 System pour l'ancrage d'un objet dans le sol a l'aide d'un piquet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03103579A EP1518976A1 (de) 2003-09-26 2003-09-26 Pfahl mit herausragenden Widerhaken

Publications (1)

Publication Number Publication Date
EP1518976A1 true EP1518976A1 (de) 2005-03-30

Family

ID=34178600

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03103579A Withdrawn EP1518976A1 (de) 2003-09-26 2003-09-26 Pfahl mit herausragenden Widerhaken
EP04787228A Not-in-force EP1664463B1 (de) 2003-09-26 2004-09-27 System zur Verankerung eines Objekts im Bodem mittels eines Pfahls

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04787228A Not-in-force EP1664463B1 (de) 2003-09-26 2004-09-27 System zur Verankerung eines Objekts im Bodem mittels eines Pfahls

Country Status (8)

Country Link
US (1) US7497053B2 (de)
EP (2) EP1518976A1 (de)
CN (1) CN100445510C (de)
AT (1) ATE353389T1 (de)
CA (1) CA2537538C (de)
DE (1) DE602004004667T2 (de)
ES (1) ES2281837T3 (de)
WO (1) WO2005031091A1 (de)

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WO2008149112A2 (en) * 2007-06-07 2008-12-11 Purton Sustainable Technologies Ltd Method and apparatus for mounting a pole into the ground
CN106351447A (zh) * 2016-08-31 2017-01-25 浙江南湖建设有限公司 灌浆管道组件以及使用这种灌浆管道组件的施工方法
CN108797580A (zh) * 2018-06-16 2018-11-13 马鞍山小古精密机电科技有限公司 一种可调节高度建筑桩
EP3305990A4 (de) * 2015-05-26 2019-01-02 Tachigami Iron Works Co., Ltd. Ankerpfahl und installationsverfahren dafür
FR3076873A1 (fr) * 2018-01-18 2019-07-19 Daniel Drecq Cheville expansible pour insertion dans le sol
CN110424387A (zh) * 2019-08-22 2019-11-08 辽宁工程技术大学 一种带锚固端加强连接和索身自锁功能的预应力锚索
CN110468938A (zh) * 2019-07-02 2019-11-19 北京质诚捷讯水利工程有限公司 一种市政排水管道施工方法

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CN102535508A (zh) * 2012-03-23 2012-07-04 柳州相光科技有限责任公司 张紧式固定桩
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CN103767268A (zh) * 2014-01-20 2014-05-07 上海交通大学 三爪抓地装置
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CN105507661A (zh) * 2015-12-12 2016-04-20 重庆山岱科技有限责任公司 可折叠式帐篷用地钉
CN105587160A (zh) * 2015-12-12 2016-05-18 重庆山岱科技有限责任公司 可折叠式帐篷用地钉使用方法
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JP6755469B2 (ja) * 2016-04-28 2020-09-16 信也 馬場 保孔管の共抜け防止器具
CN107063178B (zh) * 2017-04-21 2023-04-14 中水北方勘测设计研究有限责任公司 一种安装位移传感器的混凝土水准标石及其高程观测与计算方法
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CN107489144B (zh) * 2017-08-11 2023-06-06 汤始建华建材（苏州）有限公司 一种增强管桩
US10669735B2 (en) * 2017-08-28 2020-06-02 Matthew Johnson Marker stabilizer
CN109208593B (zh) * 2018-10-22 2020-08-07 大连交通大学 一种补偿预应力损失的装置及其施工方法
CN109680692A (zh) * 2019-02-22 2019-04-26 中国建筑西南勘察设计研究院有限公司 一种可部分回收的混合材料锚索
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CN112695753B (zh) * 2020-12-03 2022-05-10 北京东地岩土工程有限公司 一种扩大头锚杆结构及其施工工艺
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CN110424387A (zh) * 2019-08-22 2019-11-08 辽宁工程技术大学 一种带锚固端加强连接和索身自锁功能的预应力锚索

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CA2537538C (fr) 2012-07-10
CN1853021A (zh) 2006-10-25
CN100445510C (zh) 2008-12-24
WO2005031091A1 (fr) 2005-04-07
US7497053B2 (en) 2009-03-03
DE602004004667D1 (de) 2007-03-22
US20070017166A1 (en) 2007-01-25
ATE353389T1 (de) 2007-02-15
CA2537538A1 (fr) 2005-04-07
EP1664463B1 (de) 2007-02-07
ES2281837T3 (es) 2007-10-01
EP1664463A1 (de) 2006-06-07
DE602004004667T2 (de) 2007-11-08

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