EP0122521B1 - Ancrage pour le transport d'éléments préfabriqués - Google Patents

Ancrage pour le transport d'éléments préfabriqués Download PDF

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Publication number
EP0122521B1
EP0122521B1 EP84103413A EP84103413A EP0122521B1 EP 0122521 B1 EP0122521 B1 EP 0122521B1 EP 84103413 A EP84103413 A EP 84103413A EP 84103413 A EP84103413 A EP 84103413A EP 0122521 B1 EP0122521 B1 EP 0122521B1
Authority
EP
European Patent Office
Prior art keywords
anchor
bends
tie
rod
shaped
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.)
Expired
Application number
EP84103413A
Other languages
German (de)
English (en)
Other versions
EP0122521A3 (en
EP0122521A2 (fr
Inventor
Peter Ing. Grad. Hoyer
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.)
PFEIFER SEIL- UND HEBETECHNIK GMBH & CO.
Original Assignee
Pfeifer Seil- und Hebetechnik & Co GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6195645&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0122521(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pfeifer Seil- und Hebetechnik & Co GmbH filed Critical Pfeifer Seil- und Hebetechnik & Co GmbH
Priority to AT84103413T priority Critical patent/ATE26009T1/de
Publication of EP0122521A2 publication Critical patent/EP0122521A2/fr
Publication of EP0122521A3 publication Critical patent/EP0122521A3/de
Application granted granted Critical
Publication of EP0122521B1 publication Critical patent/EP0122521B1/fr
Expired legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a transport anchor for precast concrete parts, consisting of a threaded part for connecting the transport anchor to a hoist and a rod-shaped anchor part, which carries the threaded part at one straight end, and has wavy bends in the vicinity of its other end.
  • a transport anchor of the aforementioned type has become known, for example, from DE-A 1 434 518.
  • the transport anchor described in this document consists of rod material which has many bends essentially distributed over its entire length. The radius of the bends becomes smaller and smaller, with the narrowest bend at the inner end of the lifting anchor.
  • the known transport anchor is relatively expensive to manufacture. This is due to the large number of turns and the fact that each turn has a different shape. In particular, when applying the bend with the smallest radius, the application of heat is essential if damage to the rod material due to excessive deformation is to be avoided.
  • the complex manufacture of the known anchor is in conflict with the fact that the anchor is essentially only required once, namely when the precast concrete is transported from the manufacturing site to the installation site.
  • Such an anchor is a consumable part that should be able to be manufactured as cheaply as possible.
  • the invention proposes a transport anchor of the type described in the introduction that the bends obtained by cold deformation consist only of a single shaft with two adjoining arches, the arc adjoining the straight region of the rod-shaped anchor part being relatively short, and the adjoining bow pointing to the other side has a length such that the end of the anchor part projects over the other side of the transport anchor.
  • the arrangement of a single shaft at the inner end of the anchor part ensures that the anchor is not pulled out of the surrounding concrete when the anchor is overloaded, but that an anchor cone is formed by the anchor.
  • the size of this breakout cone is crucial for the transfer of the holding forces.
  • the invention thus eliminates the need to arrange a variety of turns. It is also only necessary to keep the bar length large enough that the breakout cone is of sufficient size. As a result, the manufacturing outlay, namely both the material-related and the processing-related manufacturing outlay, is minimal.
  • the space requirement in the lateral direction is also small in the anchor according to the invention.
  • the anchor can therefore also be arranged in thin precast concrete parts.
  • the bends have a lateral dimension that corresponds approximately to one to two times the diameter of the anchor part.
  • the transport anchor shown consists of the threaded part 10 and the anchor part 9.
  • the threaded part is formed by a continuous sleeve which, in one part, has an internal thread 11 which is used for connection to a hoist.
  • the other part 12 of the inner bore serves for connection to the anchor part 9, which is connected to the threaded part by an external radial pressure.
  • the shown threaded part can also by other threaded parts, for example screw-like designs or similar constructions are replaced.
  • the press connection in the inner bore part 12 is advantageous for the invention, but can also be replaced by other connecting means, for example by welding or the like.
  • the anchor part 9 is made of a straight reinforcing steel rod, which has on its surface the ribs 13, which are obtained, for example, by rolling. As is known per se, the anchoring in the concrete is improved by these ribs 13. However, the invention can also be applied to anchor parts whose outer surface is relatively smooth or which have a different profile. By means of the ribs 15, the connection to the threaded part is also improved.
  • a short curve 5 is formed on the straight region 2 by cold deformation.
  • the associated center of curvature is designated by 15.
  • the short curve 1 is followed by a longer curve 5, the center of curvature of which is designated by 15. In this way, the end 7 reaches the side 8 of the transport anchor, while the main part of the bends 1 runs on the opposite side 4.
  • the end 7 protrudes only slightly onto the side 8, while the bend on the side 4 is approximately one and a half times the diameter of the anchor part. It was found that such a design fully meets all requirements. Of course, it is possible to make the space required on both sides 4 and 8 the same size. However, an additional rod length at the end 7 no longer has any significant advantages since the size of the breakout cone is not significantly improved thereby.
  • the wavy bends are arranged in a single plane, which is generally sufficient for the purposes according to the invention. However, it is also possible to provide the wavy bends in several planes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Surgical Instruments (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Lubricants (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Piles And Underground Anchors (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Dowels (AREA)

Claims (2)

1 - Ancre de transport pour éléments préfabriques en béton constituée par une partie taraudée (10) destinée à relier l'ancre de transport à un engin de levage et par une partie formant ancre (9) en forme de barre qui porte à l'une de ses extrémités, à savoir celle rectiligne, la partie taraudée, et présente au voisinage de son autre extrémité (7) des courbures ondulées (1), caractérisée en ce que les courbures obtenues par façonnage à froid ne sont constituées que par une seule onde avec deux arcs qui se suivent, l'arc (5) faisant suite à la portion rectiligne (2) de la partie formant ancre (9) en forme de barre étant relativement court, et l'arc (6) faisant suite à ce dernier et orienté de l'autre côté (8) présentant une longueur telle que l'extrémité (7) de la partie formant ancre fasse saillie de l'autre côté (8) de l'ancre de transport.
2 - Ancre de transport selon la revendication 1, carctérisée en ce que les courbures (1) présentent une dimension latérale qui vaut à peu près une à deux fois la dimension du diamètre de la partie formant ancre (9).
EP84103413A 1983-04-07 1984-03-28 Ancrage pour le transport d'éléments préfabriqués Expired EP0122521B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103413T ATE26009T1 (de) 1983-04-07 1984-03-28 Transportanker fuer betonfertigteile.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833312458 DE3312458A1 (de) 1983-04-07 1983-04-07 Transportanker fuer betonfertigteile
DE3312458 1983-04-07

Publications (3)

Publication Number Publication Date
EP0122521A2 EP0122521A2 (fr) 1984-10-24
EP0122521A3 EP0122521A3 (en) 1985-01-09
EP0122521B1 true EP0122521B1 (fr) 1987-03-18

Family

ID=6195645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103413A Expired EP0122521B1 (fr) 1983-04-07 1984-03-28 Ancrage pour le transport d'éléments préfabriqués

Country Status (8)

Country Link
US (1) US4655015A (fr)
EP (1) EP0122521B1 (fr)
AT (1) ATE26009T1 (fr)
AU (1) AU568845B2 (fr)
DE (2) DE3312458A1 (fr)
DK (1) DK157567C (fr)
ES (1) ES286973Y (fr)
HU (1) HU188619B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019210968A1 (fr) 2018-05-04 2019-11-07 B.T. Innovation Gmbh Système d'ancrage à force transversale

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4743985A (en) * 1984-09-14 1986-04-10 Konishiroku Photo Industry Co., Ltd. Silver halide photographic material with magenta coupler
GB8805547D0 (en) * 1988-03-09 1988-04-07 Crosby J S Insert for concrete structures
US5261198A (en) * 1991-10-22 1993-11-16 Mcmillan Larry S Modular concrete connector
DE4310022A1 (de) * 1992-03-31 1993-10-07 Pfeifer Seil Hebetech Anker für Betonfertigteile und Verfahren zu dessen Herstellung
DE4428775A1 (de) * 1994-08-13 1996-02-15 Detec Fertigung Gmbh Hülsenanker für Betonteile
US7032354B2 (en) * 2001-12-19 2006-04-25 Universal Form Clamp Co., Inc. Sandwich erection lift anchor with welding plate assembly
US20030213206A1 (en) * 2002-05-01 2003-11-20 Universal Form Clamp Co., Inc. Anchor for embedment in concrete members
US7111432B2 (en) * 2003-02-19 2006-09-26 Universal Form Clamp Of Chicago, Inc. Passthrough concrete anchor
US20050044811A1 (en) * 2003-08-27 2005-03-03 Universal Form Clamp Co., Inc. Ring lift anchor
US20050055958A1 (en) * 2003-08-27 2005-03-17 Universal Form Clamp Co., Inc. W foot anchor
US7065925B2 (en) * 2004-02-11 2006-06-27 Universal Form Clamp Of Chicago, Inc. Concrete anchor
DE102004038381A1 (de) * 2004-08-06 2006-03-16 Pfeifer Holding Gmbh & Co. Kg Anschlagmittel sowie hülsenartiges Element und Herstellungsverfahren hierfür
US20060144007A1 (en) * 2005-01-06 2006-07-06 Michael Azarin Coil bar anchor
US20060248811A1 (en) * 2005-05-04 2006-11-09 Universal Form Clamp Co., Inc. Anchor positioning assembly

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH7504A (de) * 1893-11-06 1894-04-14 Engel Heinrich Hermann Aufhängevorrichtung für Kleider und andere Gegenstände
US1510978A (en) * 1921-09-20 1924-10-07 William F Conklin Detachable bolt
GB264835A (en) * 1926-01-19 1927-06-02 Wilhelm Overbeck Improvements in foundation or like bolts
US2183712A (en) * 1938-11-07 1939-12-19 Plibrico Jointless Firebrick C Wall anchor
US2627176A (en) * 1947-12-17 1953-02-03 Samuel S Levy Block assembly
GB800302A (en) * 1954-11-20 1958-08-27 Chester Irving Williams Improvements in or relating to anchoring means particularly for use in the pouring of successive lifts of concrete
US2878668A (en) * 1956-08-06 1959-03-24 Starling Leslie Robert Anchor bolt
US3160988A (en) * 1960-12-16 1964-12-15 Chester I Williams Stress-gradient anchor
DE1913912A1 (de) 1969-03-19 1970-10-22 Pfeiffer Fa Ed Halteteil fuer ein Betonfertigteil
US4084362A (en) * 1975-12-31 1978-04-18 Maso-Therm Corporation Anchored composite building module
DE2615185A1 (de) * 1976-04-08 1977-10-27 Fischer Artur Verankerung eines befestigungselementes
US4202951A (en) * 1976-10-28 1980-05-13 Standard Oil Company Of Indiana Branched polyphenylene-polyphenylene sulfide blends
DE2704612A1 (de) * 1977-02-04 1978-08-10 Kafski Karl Heinz Fundament- oder deckenanker fuer schwere maschinen und andere auf hallenboeden oder unter decken zu befestigende einrichtungen
US4079983A (en) * 1977-02-04 1978-03-21 W. C. Dillon And Company, Inc. Weight lifting eye and socket
US4117643A (en) * 1977-02-22 1978-10-03 Lamothe Surguies M Anchor bolt thread protector and sleeve system
JPS5916605B2 (ja) * 1978-11-20 1984-04-17 アルメツクス アクチエンゲゼルシヤフト 順次流込まれるコンクリ−トあるいは鉄筋コンクリ−ト構造部材の結合素子
DE3121249C2 (de) * 1981-05-29 1983-03-17 Gerhard 8867 Oettingen Enßle Verankerung für Steigeisen in Teilen aus Beton o.dgl.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019210968A1 (fr) 2018-05-04 2019-11-07 B.T. Innovation Gmbh Système d'ancrage à force transversale
US11486131B2 (en) 2018-05-04 2022-11-01 B.T. Innovation Gmbh Shear force anchor

Also Published As

Publication number Publication date
ES286973U (es) 1986-01-16
EP0122521A3 (en) 1985-01-09
DK180484D0 (da) 1984-04-06
EP0122521A2 (fr) 1984-10-24
DK157567C (da) 1990-06-11
ES286973Y (es) 1986-09-16
US4655015A (en) 1987-04-07
AU2641084A (en) 1984-10-11
DE3312458A1 (de) 1984-10-11
DK180484A (da) 1984-10-08
ATE26009T1 (de) 1987-04-15
AU568845B2 (en) 1988-01-14
DE3462706D1 (en) 1987-04-23
DK157567B (da) 1990-01-22
HU188619B (en) 1986-04-28

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