EP0688922A1 - Ancrage de manutention notamment pour éléments en béton préfabriqués et élément de manutention vissé dans l'ancrage - Google Patents

Ancrage de manutention notamment pour éléments en béton préfabriqués et élément de manutention vissé dans l'ancrage Download PDF

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Publication number
EP0688922A1
EP0688922A1 EP94109706A EP94109706A EP0688922A1 EP 0688922 A1 EP0688922 A1 EP 0688922A1 EP 94109706 A EP94109706 A EP 94109706A EP 94109706 A EP94109706 A EP 94109706A EP 0688922 A1 EP0688922 A1 EP 0688922A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
face
stopper
transport anchor
internal thread
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
Application number
EP94109706A
Other languages
German (de)
English (en)
Other versions
EP0688922B1 (fr
Inventor
Klaus Fröhlich
Ernst Peppel
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.)
Leviat GmbH
Original Assignee
Halfen GmbH and Co KG
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 Halfen GmbH and Co KG filed Critical Halfen GmbH and Co KG
Priority to EP94109706A priority Critical patent/EP0688922B1/fr
Priority to DE59405796T priority patent/DE59405796D1/de
Priority to US08/494,055 priority patent/US5649782A/en
Publication of EP0688922A1 publication Critical patent/EP0688922A1/fr
Application granted granted Critical
Publication of EP0688922B1 publication Critical patent/EP0688922B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/20—Joints and connections with indicator or inspection means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/57—Distinct end coupler
    • Y10T403/5706—Diverse serial connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/57—Distinct end coupler
    • Y10T403/5741—Separate screw or pin-type connections

Definitions

  • the invention relates to a transport anchor, in particular for precast concrete, of the type specified in the preamble of claim 1 and to a load receiver which can be screwed into the transport anchor.
  • EP-0 118 002 A2 describes a transport anchor for precast concrete parts, which consists of a sleeve with an internal thread for screwing in a load receiver. The end located within the precast concrete is pressed onto the end of a rib steel so that no concrete can penetrate into the sleeve when the precast concrete is poured. At the front end of the rib steel, a spring element is supported, at the front end of which a disc or the like is attached, the surface of which approximately corresponds to the inner cross section of the sleeve.
  • the disc is to be used as a marking carrier to indicate the load or The same serve and on the other hand it should be ensured that no dirt penetrates into the sleeve.
  • a sufficient radial play must be present in order to prevent jamming of the disk in the sleeve, but this does not allow the interior of the sleeve to be sealed off from the outside.
  • the remaining annular gap allows dirt particles and, above all, moisture to penetrate into the sleeve, so that difficulties in screwing in the load receiver in question cannot be avoided.
  • the main advantages of the lifting anchor according to the invention can be seen in the fact that the plug covers the entire cross section of the sleeve opening, including the threads, and that the plug is moved back into the starting position by the load receiver without the need for spring means.
  • a preferred development of the subject matter of the invention consists in that at least one extending in the axial direction of the sleeve for non-positive connection to the stopper Surface is provided which interacts with a corresponding surface of the screw-in load receiver. This results in a positive connection between the stopper and the load receiver in the direction of rotation, so that the stopper is also rotated in accordance with the rotation of the load receiver, regardless of the respective direction of rotation. As soon as when the load receiver has been unscrewed, its last thread has left the internal thread of the sleeve and is axially removed, the stopper naturally remains in the - front - position assumed at this time.
  • two surfaces are provided which are formed by at least one elongate projection which is arranged symmetrically on the end face of the stopper. In this way, a symmetrical introduction of force to the stopper is achieved, thereby avoiding transverse forces and preventing the tendency to jam. So that the angle of rotation is kept low until the respective surfaces of the load receiver and plug engage, it is expedient that the surfaces are formed on a hexagon arranged concentrically to the central axis of the plug. In this way, after a rotation angle of 60 ° at the latest, there is an interlocking of the load receiver and stopper and then a synchronous rotary movement of the two parts.
  • the plug can also be used to hold positioning pins or fastening screws as an aid when fixing it in the formwork during the pouring of the precast concrete element.
  • the plug is provided with a blind hole with an internal thread, the opening of the blind hole being at the front end of the plug. So that when the load receiver is put in place to screw it the internal thread of the sleeve ensures sufficient axial play relative to the plug, the height of the surfaces in the axial direction should be at least 1.1 times, preferably 1.5 to 2.0 times the distance between two successive threads.
  • the plug can be produced in a particularly simple manner as a plastic injection molded part, the shape of the surfaces, i.e. Front and back can be designed in a variety of ways by specifying the tool shape.
  • the external thread of the plug should have a length of at least two threads.
  • the use of plastic as the material for the stopper is also advantageous in terms of material costs.
  • markings can expediently be used to designate the internal thread of the sleeve, i.e. Shape and size of the thread and the load capacity can be provided.
  • materials that are weather-resistant and corrosion-free can also be used for the stopper.
  • the internal thread of the sleeve should only extend over part of the total length of the sleeve.
  • the unthreaded section of the sleeve is intended for connection to the rib steel or a reinforcing bar. For connection to a rib steel, this is inserted at the front into the rear end of the sleeve and the threadless section of the sleeve is pressed onto the rib steel.
  • two diametrically opposite bores are provided in the threadless section of the sleeve and that the end of the internal thread adjacent to the threadless section is provided with a further stopper which is immovable in the sleeve attached in particular is pressed.
  • This second plug forms a wall at the inner end of the internal thread, through which the further advance of concrete during the pouring of the precast concrete element penetrates into the interior of the sleeve, which has the thread.
  • the present invention also provides a load receiver for sleeve-shaped transport anchors which, in a simple manner, rotates the stopper in both directions when the load receiver is screwed in or out of the sleeve.
  • This load receiver is characterized in that it has at least one axial recess or a projection on its end face facing the transport anchor, whereby an axially extending surface is formed which interacts with a corresponding surface of the end face of the stopper.
  • a groove is expediently provided on the end face, the surfaces being formed by the side walls of the groove, and the groove runs along the diameter of the load receiver.
  • This version is to be regarded as particularly preferred because it is also possible to retrofit existing load sensors without problems by milling or grinding in a groove running along the diameter on the front end face.
  • FIG. 1 shows the detail of a prefabricated concrete part 10 during its manufacture.
  • the form is completed by a formwork plate 11 on which the end face 15 of a transport anchor 12, which essentially consists of a sleeve 13 with an internal thread 14, bears.
  • the sleeve 13 comprises a first section 16, in which the internal thread 14 is provided, and a second section 17, which has a smooth inner contour.
  • a rib steel 19 is inserted, onto which the section 17 of the sleeve 13 is pressed. This results in a tight connection, which prevents the still liquid or flowable concrete from penetrating into the cavity 20 within the sleeve 13.
  • a plastic stopper 21 with an external thread 22 which is exactly adapted to the internal thread 14 of the sleeve 13.
  • a blind hole 23 with an internal thread is provided in the plastic plug 21, into which a threaded bolt 25 is screwed.
  • the threaded bolt 25 protrudes through an opening 26 in the formwork plate 11, as a result of which the transport anchor 12 is positioned in the predetermined position and secured by means of a wing nut 27, which is turned on the outer side on the threaded bolt 25. This measure ensures that the transport anchor 12 does not shift when filling the formwork form with concrete or when shaking for the purpose of compaction.
  • FIGS. 2a to 2f show different embodiments of plastic plugs, the example in FIG. 2e corresponding to that contained in FIG. 1.
  • Each of the representations of FIGS. 2a to 2f shows an axial section and a top view of the plastic stopper 21.
  • the plastic stopper 21 has a disk-shaped base body 24, on the upper end face 29 of which an elongated projection 28 is arranged symmetrically to the central axis is. Since the elongated projection 28 occupies only a small part of the total area of the end face 29, there is sufficient space on the end face for the application of markings 30.
  • These markings 30 can, for example, provide information about the size and shape of the thread 14 of the transport anchor 12 shown in FIG.
  • the markings 30 are provided in the injection mold for the plastic plugs 21, so that the mark 30 is produced when the plastic plugs 21 are produced without additional effort. In this way, the marking 30 is captively and unmistakably contained on the plastic stopper 21, so that errors which can occur when the markings 30 are subsequently applied are excluded.
  • FIG. 2b shows a plastic stopper 21 which is provided with an elongated recess 31 on the end face 29.
  • the disk-shaped base body 24 is provided on its end face 29 with a projection 32 in the form of a hexagon 33, the hexagon 33 being arranged concentrically to the central axis of the plastic stopper 21.
  • a cylindrical recess 34 is provided on the underside of the disk-shaped base body 24, as a result of which the volume of the plastic stopper 21 and thus the amount of material required for production is reduced.
  • FIG. 2d shows a plastic stopper 21 which has a blind hole 23 with an internal thread 35 along its longitudinal axis.
  • the front opening of the blind hole 23 is located on the end face 29 of the disk-shaped base body 24.
  • there are diametrically opposite projections 36 which protrude on the end face 29 as far as the projection 28 in FIG. 2a. In this embodiment, too, there is sufficient surface for the markings 30 on the end face 29.
  • the embodiment shown in FIG. 2e differs from that in FIG. 2d only by an annular recess 37 provided on the underside of the disk-shaped base body 24, which serves to reduce the volume of the plastic plug 21.
  • the embodiment of FIG. 2f is similar to that which is described in FIG. 2c, and differs from this in that it additionally makes a blind hole 23 within the projection 32 designed as a hexagon 33.
  • the lifting anchor 12 is shown in cooperation with a load receiver 40.
  • the load receiver 40 consists of a partially hollow bolt 41 with an external thread 42 and a rope loop 43 fastened in the opening of the bolt 41 and consisting of a steel cable.
  • the end of the bolt 41 surrounding the opening for receiving the cable loop 43 is designed as a radial collar 44.
  • the bolt 41 is solid, an elongated recess in the form of a groove 46 being provided on the end face 45.
  • the width of the groove 46 is Dimensioned so that it can accommodate the elongated projection 28 of the plastic plug 21.
  • the end face 45 of the bolt 41 is placed on the end face 29 of the plastic stopper 21, which is located on the front end face 15 of the transport anchor 12.
  • the elongated projection 28 and the groove 46 are brought into engagement so that side walls 47 of the groove 46 and side walls 48 of the elongated projection 28 come into mutual contact.
  • This interlocking engagement results in surfaces 47 and 48 extending in the axial direction of the sleeve 13 of the transport anchor 12, through which surfaces the rotational movement is transmitted to the plastic plug 21 when the bolt 41 is rotated.
  • the plastic plug 21 is also rotated synchronously, so that it clears the cavity 20 for receiving the bolt 41.
  • the length of the internal thread 14 is dimensioned sufficiently to be able to screw in the bolt 41 of the load receiver 40 until its collar 44 abuts the end face 15 of the sleeve 13. This is shown in Fig. 3a.
  • the bolt 41 is unscrewed from the internal thread 14, the coupling of the plastic plug 21 following the rotation of the bolt 41 by means of the projection 28 engaging in the groove 46.
  • the plastic stopper 21 remains at the front end of the sleeve 13 and thus prevents dirt from penetrating into the interior 20 of the transport anchor 12.
  • FIG. 4 differs from that of FIG. 1 by the reinforcement of the transport anchor 12 in the precast concrete part 10.
  • This transport anchor 12 consists of a sleeve 50 with a first section 51, which is provided with the internal thread 14, and with a second section 52 with a smooth inner wall.
  • This threadless section 52 has two diametrically opposite bores 53 through which a reinforcing bar 54 runs.
  • a second plug 55 In the first section 51 with the internal thread 14 there is a second plug 55, which also has an external thread 56, this second plug 55 being screwed in as far as the inner end of the thread 14.
  • the second plug 55 is provided with a recess 57, for example in the form of a slot.
  • the second plug 55 seals the cavity 20 which is formed in the sleeve 50 and thus prevents the penetration of concrete when the precast concrete is poured. 4 corresponds to that of FIG. 1, so that reference is made to the relevant description.
  • Another embodiment which is not shown in the drawing, is that the internal thread of the sleeve extends over its entire axial length.
  • the end of the sleeve located inside the precast concrete element can thus be provided with a screw-in anchor element before the formwork is filled.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP94109706A 1994-06-23 1994-06-23 Ancrage de manutention notamment pour éléments en béton préfabriqués et élément de manutention vissé dans l'ancrage Expired - Lifetime EP0688922B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP94109706A EP0688922B1 (fr) 1994-06-23 1994-06-23 Ancrage de manutention notamment pour éléments en béton préfabriqués et élément de manutention vissé dans l'ancrage
DE59405796T DE59405796D1 (de) 1994-06-23 1994-06-23 Transportanker, insbesondere für Betonfertigteile und in den Transportanker einschraubbarer Lastaufnehmer
US08/494,055 US5649782A (en) 1994-06-23 1995-06-23 Transport anchor especially for prefabricated concrete parts and load bearing member to be screwed into the transport anchor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94109706A EP0688922B1 (fr) 1994-06-23 1994-06-23 Ancrage de manutention notamment pour éléments en béton préfabriqués et élément de manutention vissé dans l'ancrage

Publications (2)

Publication Number Publication Date
EP0688922A1 true EP0688922A1 (fr) 1995-12-27
EP0688922B1 EP0688922B1 (fr) 1998-04-22

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EP94109706A Expired - Lifetime EP0688922B1 (fr) 1994-06-23 1994-06-23 Ancrage de manutention notamment pour éléments en béton préfabriqués et élément de manutention vissé dans l'ancrage

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US (1) US5649782A (fr)
EP (1) EP0688922B1 (fr)
DE (1) DE59405796D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953551A1 (fr) * 1998-04-29 1999-11-03 HM-Betonfertigteilwerk Hans Mauthe GmbH & Co. KG Element préfabriqué en béton
EP1182308A1 (fr) * 2000-08-24 2002-02-27 Deha Ankersysteme GmbH & Co. KG Ancrage avec manchon pour éléments en béton et son procédé de fabrication
FR2905388A1 (fr) * 2006-09-01 2008-03-07 Marmou Richard Hustache Dispositif d'ancrage subaquatique, non destructif, reutilisable, visse manuellement ou mecaniquement en dehors des herbiers sur fond de sediments de sable.
DE202014100188U1 (de) 2014-01-17 2015-04-20 Philipp Gmbh Transportanker, Betonfertigteil mit zumindest einem Transportanker, sowie Verwendung eines Transportankers zur Herstellung eines solchen Betonfertigteils
DE202015100568U1 (de) 2015-02-06 2016-05-09 Philipp Gmbh Transportanker und Betonbauteil mit zumindest einem solchen Transportanker
CN105765150A (zh) * 2013-09-30 2016-07-13 科思创有限公司 防强行侵入和防弹的快速部署的聚碳酸酯层压窗盖

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DE29612573U1 (de) * 1996-07-20 1997-11-20 Pfeifer Seil- und Hebetechnik GmbH & Co, 87700 Memmingen Vorrichtung zum Verbund von Betonfertigteilen
NL1010661C2 (nl) * 1998-11-26 2000-06-19 Novitec International B V Wapeningsstelsel alsmede betonconstructie.
US6324793B1 (en) * 2000-04-04 2001-12-04 Michael Dean Klanke Burial crypt
US6230447B1 (en) 2000-07-06 2001-05-15 George E. Pribyl Lifting anchor for prefabricated concrete panels
US6595718B2 (en) * 2001-09-19 2003-07-22 Works R&D, Inc. Exo-lift
US7010891B1 (en) * 2002-04-02 2006-03-14 Ryan Clark Haunch assembly for supporting a concrete slab and method of making the haunch assembly
US7357366B1 (en) * 2003-10-24 2008-04-15 Russell Corporation Sports pole mounting structure
US20060248825A1 (en) * 2005-04-09 2006-11-09 Robert Garringer Panelized Log Home Construction
CH698304B1 (de) * 2005-10-10 2009-07-15 Fatzer Ag Drahtseilanker, insbesondere für Steinschlag- oder Lawinenschutzverbauungen.
US7905068B2 (en) * 2008-02-06 2011-03-15 Edgeworth Construction Products, Llc Protective cap for coupler bar
DE102011003164A1 (de) * 2011-01-26 2012-07-26 Aloys Wobben Verfahren und Vorrichtung zum Errichten eines Turms einer Windenergieanlage
KR101220995B1 (ko) * 2011-02-23 2013-01-10 김상기 대형 콘크리트 블록 설치 방법
WO2014035482A2 (fr) 2012-08-29 2014-03-06 Bayer Materialscience Llc Absorbeur d'énergie pour système de murs pare-souffle haute performance
US9347232B1 (en) * 2014-03-10 2016-05-24 Sidney E. Francies, III Lifting and leveling assembly for precast concrete slabs and method
WO2015171775A1 (fr) 2014-05-06 2015-11-12 Covestro Llc Système de recouvrement à déploiement rapide à base de polycarbonate
US20160208504A1 (en) * 2015-01-16 2016-07-21 Too-Eze Systems Ltd. Safety railing for building construction
US10597871B2 (en) 2016-07-21 2020-03-24 Meadow Burke, Llc Lifting and leveling insert for a precast concrete slab
US10309103B2 (en) 2016-07-21 2019-06-04 Meadow Burke, Llc Lifting and leveling insert for a precast concrete slab
WO2019002071A1 (fr) 2017-06-27 2019-01-03 Frank Philipp Ancre de transport
DE102017210761A1 (de) 2017-06-27 2018-12-27 Frank Philipp Transportanker
EP3421689B1 (fr) 2017-06-27 2019-06-26 Frank Philipp Réservoir de transport
US10900191B2 (en) * 2018-02-05 2021-01-26 Shandong University Pulling-out device for prefabricated concrete support wall
USD882905S1 (en) 2018-05-31 2020-04-28 Meadow Burke, Llc Lift level
US11802584B2 (en) * 2020-08-10 2023-10-31 Consolidated Nuclear Security, LLC Foreign material exclusion plug for structural threads with breakaway tab

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DE2159732A1 (de) * 1971-12-02 1973-06-07 Herfeld Kg Dr Huelsenduebel
EP0118002A2 (fr) * 1983-02-08 1984-09-12 Deha Ankersysteme GmbH & Co. KG Support de marquage pour ancres de transport
EP0132815A1 (fr) * 1983-07-23 1985-02-13 Pfeifer Seil- und Hebetechnik GmbH & Co. Dispositif pour les ancrages de manutention d'éléments en béton préfabriqués

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953551A1 (fr) * 1998-04-29 1999-11-03 HM-Betonfertigteilwerk Hans Mauthe GmbH & Co. KG Element préfabriqué en béton
EP1182308A1 (fr) * 2000-08-24 2002-02-27 Deha Ankersysteme GmbH & Co. KG Ancrage avec manchon pour éléments en béton et son procédé de fabrication
FR2905388A1 (fr) * 2006-09-01 2008-03-07 Marmou Richard Hustache Dispositif d'ancrage subaquatique, non destructif, reutilisable, visse manuellement ou mecaniquement en dehors des herbiers sur fond de sediments de sable.
CN105765150A (zh) * 2013-09-30 2016-07-13 科思创有限公司 防强行侵入和防弹的快速部署的聚碳酸酯层压窗盖
DE202014100188U1 (de) 2014-01-17 2015-04-20 Philipp Gmbh Transportanker, Betonfertigteil mit zumindest einem Transportanker, sowie Verwendung eines Transportankers zur Herstellung eines solchen Betonfertigteils
DE202015100568U1 (de) 2015-02-06 2016-05-09 Philipp Gmbh Transportanker und Betonbauteil mit zumindest einem solchen Transportanker

Also Published As

Publication number Publication date
US5649782A (en) 1997-07-22
DE59405796D1 (de) 1998-05-28
EP0688922B1 (fr) 1998-04-22

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