EP0132815A1 - Device for use with manipulation anchors of prefabricated concrete elements - Google Patents

Device for use with manipulation anchors of prefabricated concrete elements Download PDF

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Publication number
EP0132815A1
EP0132815A1 EP84108654A EP84108654A EP0132815A1 EP 0132815 A1 EP0132815 A1 EP 0132815A1 EP 84108654 A EP84108654 A EP 84108654A EP 84108654 A EP84108654 A EP 84108654A EP 0132815 A1 EP0132815 A1 EP 0132815A1
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EP
European Patent Office
Prior art keywords
sleeve
clamping ring
claws
clamps
anchors
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
EP84108654A
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German (de)
French (fr)
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EP0132815B1 (en
Inventor
Peter Ing. Grad. Hoyer
Dieter Stauske
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Pfeifer Seil- und Hebetechnik & Co GmbH
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Pfeifer Seil- und Hebetechnik & Co GmbH
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Application filed by Pfeifer Seil- und Hebetechnik & Co GmbH filed Critical Pfeifer Seil- und Hebetechnik & Co GmbH
Priority to AT84108654T priority Critical patent/ATE20374T1/en
Publication of EP0132815A1 publication Critical patent/EP0132815A1/en
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    • 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 device for transport anchors for precast concrete parts, wherein the transport anchor has a sleeve with an internal thread for a load suspension device.
  • Transport anchors are concreted into precast concrete, for example connected to the reinforcement of the precast concrete or anchored in another way in the precast concrete.
  • such transport anchors consist of sleeves with an internal thread, which are accessible from the outside and into which a load suspension device, for example a rope eye, an eyebolt or the like, can be screwed.
  • a load suspension device for example a rope eye, an eyebolt or the like
  • the transport anchor is concreted into the precast concrete element, it is usually hardly visible from the outside. At most, a narrow ring-shaped outer surface can be seen, which, however, is extremely narrow due to the bevels at the outer end of the thread. If the transport anchor is therefore provided with a label that shows a load-bearing capacity, this label is usually unusable after installation.
  • the invention has for its object to provide a marking means on such transport anchors that remains visible in all operating positions, in particular even when the transport anchor is screwed in.
  • the marking means should not lead to a reduction in the load capacity of the lifting anchor. It should offer security against erroneous exchange and it should also be unmistakable in the formwork. Such a label should be cheap to manufacture.
  • the invention is based on a device of the type described in the introduction and suggests that the end of the sleeve facing the outer surface of the precast concrete element is surrounded by a clamping ring which bears a visible surface.
  • This clamping ring according to the invention can have a low overall height, so that it does not impair the support of the anchor sleeve on the concrete.
  • the clamping ring only extends in the area between the anchor sleeve and concrete, which does not contribute to the load-bearing capacity anyway.
  • the clamping ring which can be made of colored plastic, for example, and which can be used as a means of identification due to its coloring, an area that is always visible from the outside is obtained, which permits identification of the quality of the transport anchor in all operating positions. Contamination from concrete or cement milk is excluded or can be removed quickly and easily. Screwing in the load handler is not hindered.
  • the invention proposes that the inside diameter of a part of the clamping ring, which surrounds the anchor sleeve, is correspondingly adapted to the diameter of the anchor sleeve. This ensures that incorrectly marked clamping rings with an identification are also assigned to an anchor sleeve.
  • the visible surface can be designed like a tab. However, it is better if the visible surface is flange-shaped and surrounds the entire anchor sleeve, so that any labeling on the clamping ring is visible from all sides.
  • the visible surface preferably has an inward projection, which is for example flange-like and forms a stop on the sleeve.
  • the correct arrangement is much easier in this way.
  • the part of the clamping ring surrounding the sleeve also has a claw-like or clip-like shape, which improves the adhesion to the sleeve.
  • Recesses are provided between the claws or clamps, which improve the elasticity of the claws or clamps and also form an anti-twist device in the precast concrete part.
  • the claws or clamps have inward projections, so that the clamping ring is deformed when installed.
  • outward projections are provided, which serve for anchoring in the concrete.
  • the clamping ring 5 has the visible surface 6, the inner area of which forms an extension 7 which bears against the end 3 of the sleeve 4.
  • This ring part 8 carries the claws or clamps 10 which have the inner projections 12 and the outer projections 13 at the inner ends 11.
  • the sleeve 4 sits at the end of a reinforcing bar 14 and has its end 3 facing the outer surface 1 of the prefabricated concrete part 2.
  • the clamping ring 5 can only be placed on a sleeve with the correspondingly adapted outer diameter. The clamping ring does not hinder the formwork process and cannot be lost or replaced after stripping.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

1. Arrangement for transport anchors for precast concrete units, said anchor having a socket with internal thread for adapting a lifting device, said socket (4) carrying a clamping ring (5) with a visible surface (6) at the sockets (4) end (3) towards the precast units (2) surface (6).

Description

Die Erfindung betrifft eine Vorrichtung für Transportanker für Betonfertigteile, wobei der Transportanker eine Hülse mit einem Innengewinde für ein Lastaufnahmemittel aufweist.The invention relates to a device for transport anchors for precast concrete parts, wherein the transport anchor has a sleeve with an internal thread for a load suspension device.

Transportanker werden in Betonfertigteile einbetoniert, beispielsweise mit der Armierung des Betonfertigteils verbunden oder in anderer Weise im Betonfertigteil verankert.Transport anchors are concreted into precast concrete, for example connected to the reinforcement of the precast concrete or anchored in another way in the precast concrete.

In der Regel bestehen solche Transportanker aus Hülsen mit Innengewinde, die von außen zugänglich sind und in die ein Lastaufnahmemittel, beispielsweise eine Seilöse, eine Ringschraube od. dgl. eingeschraubt werden kann.As a rule, such transport anchors consist of sleeves with an internal thread, which are accessible from the outside and into which a load suspension device, for example a rope eye, an eyebolt or the like, can be screwed.

Ist der Transportanker in das Betonfertigteil einbetoniert, ist er von außen in der Regel kaum noch sichtbar. Allenfalls ist eine schmale ringförmige Außenfläche erkennbar, die jedoch wegen der Abschrägungen am äußeren Ende des Gewindes extrem schmal ist. Ist daher der Transportanker mit einem Kennzeichnungsmittel versehen, das eine Tragfähigkeit erkennen läßt, so ist dieses Kennzeichnungsmittel nach dem Einbau in der Regel unbrauchbar.If the transport anchor is concreted into the precast concrete element, it is usually hardly visible from the outside. At most, a narrow ring-shaped outer surface can be seen, which, however, is extremely narrow due to the bevels at the outer end of the thread. If the transport anchor is therefore provided with a label that shows a load-bearing capacity, this label is usually unusable after installation.

Nun wäre es aber erwünscht, auch einen eingebauten Transportanker bezüglich seiner Tragfähigkeit identifizieren zu können, um auszuschließen, daß ungeeignete Lastaufnahmemittel verwandt werden, bzw. daß der einzelne Transportanker bezüglich seiner Tragfähigkeit überlastet wird.Now, however, it would be desirable to be able to identify a built-in lifting anchor with regard to its load-bearing capacity, in order to rule out that unsuitable load suspension devices are used, or that the individual lifting anchor is overloaded with regard to its load-bearing capacity.

Es ist schon versucht worden, dieses Problem zu lösen beispielsweise dadurch, daß in das Innengewinde der Ankerhülse ein Kennzeichnungsmittel eingesteckt wird, das beispielsweise balgartig ausgestaltet ist. Solche Mittel haben den Nachteil, daß sie insbesondere bei eingeschraubtem Lastaufnahmemittel nicht mehr sichtbar sind. Aber auch ohne Lastaufnahmemittel ist die Funktion unsicher. Die Mittel können durch Zementmilch od. dgl. im Inneren des Innengewindes verdeckt sein. Darüberhinaus können sie bei Verschmutzung das Einschrauben der Lastaufnahmemittel behindern und dazu beitragen, daß das Lastaufnahmemittel nicht ausreichend tief eingeschraubt wird.Attempts have already been made to solve this problem, for example by inserting a marking means into the internal thread of the anchor sleeve, which is designed, for example, like a bellows. Such means have the disadvantage that they are no longer visible, in particular when the load suspension means is screwed in. However, the function is unsafe even without a load handler. The agents can be covered by cement milk or the like in the interior of the internal thread. In addition, they can hinder the screwing in of the load suspension devices and contribute to that the load handler is not screwed in sufficiently deep.

Der Erfindung liegt die Aufgabe zugrunde, ein Kennzeichnungsmittel an derartigen Transportankern vorzusehen, daß in allen Betriebsstellungen sichtbar bleibt, also insbesondere auch bei eingeschraubtem Transportanker. Das Kennzeichnungsmittel soll aber auch zu keiner Verringerung der Tragfähigkeit des Transportankers führen. Es soll Sicherheit bieten, gegen irrtümliche Austauschung und er soll auch schon in der Schalung unverwechselbar sein. Dabei soll ein derartiges Kennzeichnungsmittel in der Herstellung billig sein.The invention has for its object to provide a marking means on such transport anchors that remains visible in all operating positions, in particular even when the transport anchor is screwed in. However, the marking means should not lead to a reduction in the load capacity of the lifting anchor. It should offer security against erroneous exchange and it should also be unmistakable in the formwork. Such a label should be cheap to manufacture.

Zur Lösung dieser Aufgabe geht die Erfindung aus von einer Vorrichtung der eingangs beschriebenen Gattung und schlägt vor, daß das der Außenfläche des Betonfertigteils zugewandte Ende der Hülse von einem Klemmring umgeben ist, der eine Sichtfläche trägt.To achieve this object, the invention is based on a device of the type described in the introduction and suggests that the end of the sleeve facing the outer surface of the precast concrete element is surrounded by a clamping ring which bears a visible surface.

Dieser Klemmring gemäß der Erfindung kann eine geringe Bauhöhe aufweisen, so daß er die Abstützung der Ankerhülse am Beton nicht beeinträchtigt. Der Klemmring erstreckt sich nur in dem Bereich zwischen Ankerhülse und Beton, der ohnehin für die Tragfähigkeit nichts beiträgt.This clamping ring according to the invention can have a low overall height, so that it does not impair the support of the anchor sleeve on the concrete. The clamping ring only extends in the area between the anchor sleeve and concrete, which does not contribute to the load-bearing capacity anyway.

Mittels des Klemmringes, der beispielsweise aus gefärbtem Kunststoff bestehen kann und der schon durch seine Farbgebung ein Kennzeichnungsmittel sein kann, wird eine von außen immer sichtbare Fläche erhalten, die in allen Betriebsstellungen eine Identifizierung der Qualität des Transportankers zuläßt. Eine Verschmutzung durch Beton oder Zementmilch ist ausgeschlossen bzw. kann einfach und schnell beseitigt werden. Das Einschrauben des Lastaufnahmemittels wird nicht behindert.By means of the clamping ring, which can be made of colored plastic, for example, and which can be used as a means of identification due to its coloring, an area that is always visible from the outside is obtained, which permits identification of the quality of the transport anchor in all operating positions. Contamination from concrete or cement milk is excluded or can be removed quickly and easily. Screwing in the load handler is not hindered.

Insbesondere schlägt die Erfindung vor, daß der Innendurchmesser eines Teils des Klemmrings, der die Ankerhülse umgibt, dem Durchmesser der Ankerhülse sinngemäß angepaßt ist. Dies stellt sicher, daß auch nicht irrtümlich falsche, eine Kennzeichnung aufweisenden Klemmringe, einer Ankerhülse zugeordnet werden.In particular, the invention proposes that the inside diameter of a part of the clamping ring, which surrounds the anchor sleeve, is correspondingly adapted to the diameter of the anchor sleeve. This ensures that incorrectly marked clamping rings with an identification are also assigned to an anchor sleeve.

Die Sichtfläche kann lappenartig gestaltet sein. Besser ist es jedoch, wenn die Sichtfläche flanschartig ausgestaltet ist und die ganze Ankerhülse umgibt, so daß von allen Seiten eine etwaige Beschriftung des Klemmringes sichtbar ist.The visible surface can be designed like a tab. However, it is better if the visible surface is flange-shaped and surrounds the entire anchor sleeve, so that any labeling on the clamping ring is visible from all sides.

Die Sichtfläche besitzt vorzugsweise einen nach innen gerichteten Ansatz, der beispielsweise flanschartig ist und einen Anschlag an der Hülse bildet. Die richtige Anordnung wird auf diese Weise wesentlich erleichtert.The visible surface preferably has an inward projection, which is for example flange-like and forms a stop on the sleeve. The correct arrangement is much easier in this way.

Der die Hülse umgebende Teil des Klemmringes besitzt weiter eine krallen- oder klammerartige Gestalt, was die Haftung an der Hülse verbessert. Zwischen den Krallen oder Klammern sind Ausnehmungen vorgesehen, die die Elastizität der Krallen oder Klammern verbessern und auch eine Verdrehsicherung im Betonfertigteil bilden.The part of the clamping ring surrounding the sleeve also has a claw-like or clip-like shape, which improves the adhesion to the sleeve. Recesses are provided between the claws or clamps, which improve the elasticity of the claws or clamps and also form an anti-twist device in the precast concrete part.

Die Krallen oder Klammern besitzen nach innen gerichtete Vorsprünge, so daß im eingebauten Zustand der Klemmring deformiert wird. Außerdem sind nach außen gerichtete Vorsprünge vorgesehen, die der Verankerung im Beton dienen.The claws or clamps have inward projections, so that the clamping ring is deformed when installed. In addition, outward projections are provided, which serve for anchoring in the concrete.

In der Zeichnung ist ein Ausführungsbeispiel der Er- .findung schematisch dargestellt. Es zeigen:

  • Fig. 1 eine Ansicht des Klemmrings von innen,
  • Fig. 2 eine Ansicht des Klemmrings von außen,
  • Fig. 3 eine Schnittdarstellung,
  • Fig. 4 eine Ansicht im eingebauten Zustand des Klemmrings und
  • Fig. 5 eine Ansicht des Betonfertigteiles mit einer erfindungsgemäßen Vorrichtung.
An exemplary embodiment of the invention is shown schematically in the drawing. Show it:
  • 1 is a view of the clamping ring from the inside,
  • 2 is a view of the clamping ring from the outside,
  • 3 is a sectional view,
  • Fig. 4 is a view in the installed state of the clamping ring and
  • Fig. 5 is a view of the prefabricated concrete part with a device according to the invention.

Der Klemmring 5 besitzt die Sichtfläche 6, deren innerer Bereich einen Ansatz 7 bildet, der am Ende 3 der Hülse 4 anliegt. An die flanschartige Sichtfläche 6 schließt sich ein ringförmiger Teil 8 an, der die Hülse 4 umgibt. Dieser Ringteil 8 trägt die Krallen oder Klammern 10, die an den inneren Enden 11 die inneren Vorsprünge 12 und die äußeren Vorsprünge 13 aufweisen. Die Hülse 4 sitzt am Ende eines Armierungsstabes 14 und ist mit ihrem Ende 3 der Außenfläche 1 des Betonfertigteils 2 zugewandt.The clamping ring 5 has the visible surface 6, the inner area of which forms an extension 7 which bears against the end 3 of the sleeve 4. An annular part 8, which surrounds the sleeve 4, adjoins the flange-like visible surface 6. This ring part 8 carries the claws or clamps 10 which have the inner projections 12 and the outer projections 13 at the inner ends 11. The sleeve 4 sits at the end of a reinforcing bar 14 and has its end 3 facing the outer surface 1 of the prefabricated concrete part 2.

Die Fig. 2 und 5 machen deutlich, daß die Beschriftung der Sichtfläche 6 immer sichtbar ist. Der Klemmring 5 kann wegen des Durchmessers des Ringteiles 8 nur einer Hülse mit dem entsprechenden angepaßten Außendurchmesser aufgesetzt werden. Der Klemmring behindert weder den Schalungsvorgang und kann nach dem Ausschalen weder verloren werden noch ausgetauscht werden.2 and 5 make it clear that the labeling of the visible surface 6 is always visible. Because of the diameter of the ring part 8, the clamping ring 5 can only be placed on a sleeve with the correspondingly adapted outer diameter. The clamping ring does not hinder the formwork process and cannot be lost or replaced after stripping.

Claims (10)

1. Vorrichtung für Transportanker für Betonfertigteile, wobei der Transportanker eine Hülse mit einem Innengewinde für ein Lastaufnahmemittel aufweist, dadurch gekennzeichnet, daß das der Außenfläche (1) des Betonfertigteils (2) zugewandte Ende (3) der Hülse (4) von einem Klemmring (5) umgeben ist, der eine Sichtfläche (6) trägt.1. Device for transport anchors for precast concrete parts, wherein the transport anchor has a sleeve with an internal thread for a load handling device, characterized in that the outer surface (1) of the precast concrete part (2) facing end (3) of the sleeve (4) by a clamping ring ( 5) is surrounded, which carries a visible surface (6). 2. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine ring- bzw. flanschartige Sichtfläche (6) am Klemmring (5).2. Device according to claim 1, characterized by an annular or flange-like visible surface (6) on the clamping ring (5). 3. Vorrichtung nach einem oder beiden der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sichtfläche einen nach innen gerichteten Ansatz (7) besetzt, der einen Anschlag an der Hülse (4) bildet.3. Device according to one or both of the preceding claims, characterized in that the visible surface occupies an inwardly directed projection (7) which forms a stop on the sleeve (4). 4. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Ansatz als Ringflansch (7) ausgebildet ist.4. Device according to one or more of the preceding claims, characterized in that the approach is designed as an annular flange (7). 5. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch einen Ringteil (8) am Klemmring (5), dessen Innendurchmesser dem Außendurchmesser der Hülse (4) angepaßt ist.5. Device according to one or more of the preceding claims, characterized by a ring part (8) on the clamping ring (5), the inner diameter of which is adapted to the outer diameter of the sleeve (4). 6. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein die Hülse (4) umgebender Teil des Klemmrings (5) die Form von Krallen oder Klammern (10) besitzt mit Ausnehmungen (9) zwischen den Krallen bzw. Klammern (10).6. The device according to one or more of the preceding claims, characterized in that a part of the clamping ring (5) surrounding the sleeve (4) has the shape of claws or clips (10) with recesses (9) between the claws or clips ( 10). 7. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Krallen oder Klammern (10) elastisch federnd ausgebildet sind.7. The device according to one or more of the preceding claims, characterized in that the claws or clamps (10) are designed to be resilient. 8. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Enden (11) der Krallen oder Klammern nach innen gerichtete Vorsprünge (12) aufweisen.8. The device according to one or more of the preceding claims, characterized in that the ends (11) of the claws or clamps have inwardly directed projections (12). 9. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Enden (11) der Krallen oder Klammern (10) nach außen gerichtete Vorsprünge (13) aufweisen.9. The device according to one or more of the preceding claims, characterized in that the ends (11) of the claws or clamps (10) have outwardly directed projections (13). 10. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Klemmring (5) aus vorzugsweise farbigem Kunststoff besteht.10. The device according to one or more of the preceding claims, characterized in that the clamping ring (5) consists of preferably colored plastic.
EP84108654A 1983-07-23 1984-07-21 Device for use with manipulation anchors of prefabricated concrete elements Expired EP0132815B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108654T ATE20374T1 (en) 1983-07-23 1984-07-21 DEVICE FOR TRANSPORT ANCHORS FOR PRECAST CONCRETE ELEMENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8321310U 1983-07-23
DE19838321310U DE8321310U1 (en) 1983-07-23 1983-07-23 DEVICE FOR TRANSPORT ANCHORS FOR PRECAST CONCRETE PARTS

Publications (2)

Publication Number Publication Date
EP0132815A1 true EP0132815A1 (en) 1985-02-13
EP0132815B1 EP0132815B1 (en) 1986-06-11

Family

ID=6755504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108654A Expired EP0132815B1 (en) 1983-07-23 1984-07-21 Device for use with manipulation anchors of prefabricated concrete elements

Country Status (3)

Country Link
EP (1) EP0132815B1 (en)
AT (1) ATE20374T1 (en)
DE (2) DE8321310U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688922A1 (en) * 1994-06-23 1995-12-27 HALFEN GmbH & CO. Kommanditgesellschaft Transport anchorage piece, in particular for prefabricated building elements and lifting piece, screwable into the anchorage piece

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136999C2 (en) * 1991-11-11 2001-02-15 Friedrich Schroeder Kg Data badge
DE19542590C1 (en) * 1995-11-15 1997-04-30 Georg Weidner Identifier, especially for concrete anchor
DE10202227A1 (en) * 2002-01-21 2003-07-31 Georg Weidner Core body for concrete has body sides facing concrete embossed to imprint load limit data into concrete during casting.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1487283A (en) * 1965-07-24 1967-06-30 Device for handling concrete elements, in particular prefabricated elements for walls, floors and ceilings
DE1909636A1 (en) * 1969-02-21 1971-03-11 Buer Bautechnik Lenzerheide Ag Process for the installation of precast concrete elements with embedded anchoring rods and anchor sleeves as well as anchoring for carrying out the process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3463804D1 (en) * 1983-02-08 1987-06-25 Deha Baubedarf Kg Marking carrier for transport anchors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1487283A (en) * 1965-07-24 1967-06-30 Device for handling concrete elements, in particular prefabricated elements for walls, floors and ceilings
DE1909636A1 (en) * 1969-02-21 1971-03-11 Buer Bautechnik Lenzerheide Ag Process for the installation of precast concrete elements with embedded anchoring rods and anchor sleeves as well as anchoring for carrying out the process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688922A1 (en) * 1994-06-23 1995-12-27 HALFEN GmbH & CO. Kommanditgesellschaft Transport anchorage piece, in particular for prefabricated building elements and lifting piece, screwable into the anchorage piece
US5649782A (en) * 1994-06-23 1997-07-22 Halfen Gmbh & Co. Kg Transport anchor especially for prefabricated concrete parts and load bearing member to be screwed into the transport anchor

Also Published As

Publication number Publication date
EP0132815B1 (en) 1986-06-11
DE8321310U1 (en) 1984-01-12
ATE20374T1 (en) 1986-06-15
DE3460222D1 (en) 1986-07-17

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