EP0049708B1 - Device for attaching a pre-assembled concrete unit to a lifting device - Google Patents

Device for attaching a pre-assembled concrete unit to a lifting device Download PDF

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Publication number
EP0049708B1
EP0049708B1 EP80106180A EP80106180A EP0049708B1 EP 0049708 B1 EP0049708 B1 EP 0049708B1 EP 80106180 A EP80106180 A EP 80106180A EP 80106180 A EP80106180 A EP 80106180A EP 0049708 B1 EP0049708 B1 EP 0049708B1
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EP
European Patent Office
Prior art keywords
arrangement
tongue
safety
set forth
lifting device
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
EP80106180A
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German (de)
French (fr)
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EP0049708A1 (en
Inventor
Peter Ing. Grad. Hoyer
Walter Funke
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 & Co GmbH
Original Assignee
Pfeifer Seil- und Hebetechnik & Co GmbH
Pfeifer Seil- und Hebetechnik & Co GmbH
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Application filed by Pfeifer Seil- und Hebetechnik & Co GmbH, Pfeifer Seil- und Hebetechnik & Co GmbH filed Critical Pfeifer Seil- und Hebetechnik & Co GmbH
Priority to AT80106180T priority Critical patent/ATE12757T1/en
Priority to EP80106180A priority patent/EP0049708B1/en
Publication of EP0049708A1 publication Critical patent/EP0049708A1/en
Application granted granted Critical
Publication of EP0049708B1 publication Critical patent/EP0049708B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads

Definitions

  • the invention relates to a device for attaching a precast concrete element to a hoist, consisting of two elements that are movable relative to one another, the first element having an eyelet or the like for a connecting means to the hoist, and a receiving slot that is open at the bottom for a support bracket that is connected to the precast concrete and also a circular guide for the second element, which is designed as a pivotable, remotely operable bolt, which projects in the bolt position with a tongue through the slot, so that the support bracket rests on the tongue during the stroke.
  • DE-C-2 240 171 describes a device of the type specified above, wherein an arc-shaped locking bracket is used as the second element, which can be moved from a locking position by means of a remote control consisting of a tension member into an open position.
  • the locking position can be reached by hand or due to the gravity of the bolt.
  • the disadvantage of this design is that there is no security against incorrect operation. It is not clearly recognizable from the outside which position the second element is in, or the second element can be easily shifted from the set position, which is not visible from the outside.
  • a load hook of a similar design is described in US Pat. No. 2,864,644, the second element being pivotable about a bolt which is guided in an elongated hole and also having a downwardly directed securing lug which can be hooked into an adapted component on the first element is so that the closed position cannot be opened under load.
  • this design has a safety device, it is difficult to use because of the multiple mobility of the second element, namely the displacement in the elongated hole and the pivoting movement.
  • Devices for attaching a precast concrete element to a hoist are often used in practice in such a way that several devices are attached to one precast concrete element.
  • the devices must be brought into the locking position by hand.
  • the position of the respective device cannot be predetermined precisely, which makes it difficult to achieve a secure locking position.
  • the invention is based on the device of the type described in the introduction and proposes that a downwardly directed securing lug is formed on the second element, for which a receiving pan is provided on the first element, that the effective height of the securing lug or the effective depth of the receiving pan corresponds approximately to the size of a game of the second element in the guide, and that an externally visible actuating arm is attached to the second element, which interacts with a snap lock for the two end positions of the second element and indicates these end positions.
  • a simple position and basically unchanged possibility of movement of the second element in the guide can achieve a securing position which prevents the device from being opened unintentionally because the weight of the load prevents this.
  • the actuation space which is visible from the outside, can in turn easily be recognized even at a greater distance, whether the device is in the closed position or in the open position, the snap lock ensuring that the device is not used in an unstable intermediate position.
  • the actuating arm is frame-shaped on the second element and encloses the snap lock.
  • a compressed air cylinder is mounted on the first element, the piston rod of which acts on the second element in the direction of the open position of the bolt. In this way, a simple remote control is obtained and a plurality of devices can easily be operated at the same time.
  • the compressed air cylinder is mounted between two connected plates which essentially form the first element and between which the second element is movable.
  • the securing lug is arranged on the underside of the tip of the tongue.
  • the receiving pan is preferably arranged on a bridge between the plates. This bridge also connects the panels and the forces that occur are directly introduced into the panels.
  • the first element 1 of the device consists, as can also be seen in particular from FIG. 1, of the two plates 9 and 10 which are firmly connected to one another by means of the bridge 19 and by means of the sleeve 11.
  • the inner bore of the sleeve 11 results in an eyelet for the wire rope 23, which is part of a hoist, for example.
  • the hoist itself is not shown in detail.
  • the second element 2 is arranged, which also essentially has a plate-like shape.
  • approaches are provided in order to obtain a sufficiently large support 15 for the support bracket 21.
  • the support bracket 21 is formed by a wire rope which is firmly anchored in the precast concrete part 25.
  • the precast concrete part 25 has a recess 26 for this bracket 21 and the shape of the recess 26 allows the insertion of the device consisting essentially of the elements 1 and 2 for detecting the bracket 21.
  • a slot 20 is provided in the plates 9 and 10 for receiving the bracket 21, and when the bracket 21 is gripped, the latch 18 of the element 2 extends through this slot. The locking position is shown in FIG. 2.
  • the front end of the bolt 18 is designed as a tongue 22 and the tongue tip 13 has, as can be seen in particular from FIG. 4, a downwardly directed securing lug 3, for which a receiving socket 4 is provided in the bridge 19.
  • the effective height of the nose 3 or the effective depth of the receiving socket 4 corresponds approximately to the dimension, the radial mobility of the element 2 relative to the guide 5, which is formed by the outer circumference of the sleeve 11. In the locking position according to FIGS. 2 and 4, the nose 3 can therefore insert into the pan 4 and if the tongue 22 is loaded by the carrying bracket 21, an opening movement of the element 2 is therefore excluded from twisting in the direction of the arrow 27.
  • the actuating arm 7, which has a frame-like shape, is attached to the element 2. This arm 7 is clearly visible and freely accessible.
  • the arm 7 encloses the snap lock 6 with the spring 8 and the guide rod 28.
  • the guide rod 28 is held in the pivot bearing 29 and finds a guide in the rotatable rod 30 and it is clear that both the position according to FIG. 3 and the Position according to the Fig. Is secured by the spring 8. While the rod 30 is supported in the arm 7, the pivot bearing 29 is supported on the plates 9 and 10 between the lugs 31.
  • the lugs 31 of the plates 9 and 10 also carry the compressed air cylinder 16, the compressed air connection is designated 32.
  • the piston rod 17 presses on the shoulder 33 on the element 2.
  • the element 2 can be adjusted from the position in FIG. 2 in the direction of arrow 27 to the open position.
  • stops are provided between elements 1 and 2.
  • the closed position d. H. the adjustment from FIG. 3 to FIG. 2 is effected by hand, specifically on the arm 7.
  • the snap lock and the other means ensure a closed position in every position of the device relative to the precast concrete part, and the device can be opened in any such position by the compressed air cylinder.
  • the compressed air requirement is low, so that simple auxiliary units can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Bridges Or Land Bridges (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

1. Arrangement for attaching a pre-assembled concrete unit to a lifting device comprising of two elements (1, 2) movable relatively to each other wherein first element (1) is having an eye or similar for the attachment to the lifting device and a slot open on the lower side to receive a supporting stirrup member (21) connected to the pre-assembled concrete unit and furthermore having a circular guidance (5) for the second element (2) being designed as a movable remote-controlled latch and a tongue (22) protruding in locked position into a slot (20) so that during lift stirrup (21) rests on tongue (22) including a downward safety lip (3) on a second element (2) and a cup (4) to receive said safety lip which is provided on the first element in such a way that effective height of said safety lip and effective depth of cup respectively is approximately equivalent to play of second element (2) in guidance (5) and an operating arm (7) - visible from the outside - is attached to the second element (2) interacting with a snap safety lock (6) for both positions of the second element (2) and giving indication of said positions.

Description

Die Erfindung betrifft eine Vorrichtung zum Anhängen eines Betonfertigteils an ein Hebezeug, bestehend aus zwei relativ zueinander beweglichen Elementen, wobei das erste Element eine Öse od. dgl. für ein Verbindungsmittel mit dem Hebezeug aufweist, sowie einen nach unten offenen Aufnahmeschlitz für einen Tragbügel, der mit dem Betonfertigteil verbunden ist und ferner eine kreisförmige Führung für das zweite Element, das als verschwenkbarer, fernbedienbarer Riegel ausgebildet ist, der in der Riegelstellung mit einer Zunge durch den Schlitz hindurchragt, so daß beim Hub der Tragbügel auf der Zunge lagert.The invention relates to a device for attaching a precast concrete element to a hoist, consisting of two elements that are movable relative to one another, the first element having an eyelet or the like for a connecting means to the hoist, and a receiving slot that is open at the bottom for a support bracket that is connected to the precast concrete and also a circular guide for the second element, which is designed as a pivotable, remotely operable bolt, which projects in the bolt position with a tongue through the slot, so that the support bracket rests on the tongue during the stroke.

In der DE-C-2 240 171 ist eine Vorrichtung der vorstehend angegebenen Gattung beschrieben, wobei ein bogenförmiger Verschlußbügel als zweites Element Verwendung findet, der aus einer Riegelstellung mittels einer aus einem Zugglied bestehenden Fernbedienung in eine Öffnungsstellung beweglich ist. Die Verriegelungsstellung kann dabei durch Handbedienung erreicht werden oder auch infolge der Schwerkraft des Riegels. Von Nachteil ist bei dieser Bauweise, daß keine Sicherheit gegen Fehlbedienung gegeben ist. Es ist von außen nicht sicher erkennbar, welche Stellung das zweite Element einnimmt, bzw. kann das zweite Element leicht aus der eingestellten Stellung verschoben werden, was von außen nicht sichtbar ist.DE-C-2 240 171 describes a device of the type specified above, wherein an arc-shaped locking bracket is used as the second element, which can be moved from a locking position by means of a remote control consisting of a tension member into an open position. The locking position can be reached by hand or due to the gravity of the bolt. The disadvantage of this design is that there is no security against incorrect operation. It is not clearly recognizable from the outside which position the second element is in, or the second element can be easily shifted from the set position, which is not visible from the outside.

In der US-A-2 864 644 ist ein Lasthaken ähnlicher Ausbildung beschrieben, wobei das zweite Element um einen Bolzen verschwenkbar ist, der in einem Langloch geführt ist und außerdem eine nach unten gerichtete Sicherungsnase aufweist, die in ein angepaßtes Bauteil am ersten Element einhängbar ist, so daß die Schließstellung unter Last nicht geöffnet werden kann. Diese Bauweise besitzt zwar eine Sicherungseinrichtung, die aber wegen der mehrfachen Beweglichkeit des zweiten Elements, nämlich der Verschiebung im Langloch und der Schwenkbewegung nur umständlich zu bedienen ist.A load hook of a similar design is described in US Pat. No. 2,864,644, the second element being pivotable about a bolt which is guided in an elongated hole and also having a downwardly directed securing lug which can be hooked into an adapted component on the first element is so that the closed position cannot be opened under load. Although this design has a safety device, it is difficult to use because of the multiple mobility of the second element, namely the displacement in the elongated hole and the pivoting movement.

Außerdem kann es bei dieser Bauweise nicht ausgeschlossen werden, daß die Sicherungsnase auf dem Gegenelement aufliegt und diese labile Stellung des zweiten Elements von außen nicht erkannt wird.In addition, it cannot be ruled out with this design that the securing lug rests on the counter element and this unstable position of the second element is not recognized from the outside.

Vorrichtungen zum Anhängen eines Betonfertigteils an ein Hebezeug werden in der Praxis häufig derart eingesetzt, daß mehrere Vorrichtungen an einem Betonfertigteil angebracht werden. Die Vorrichtungen müssen durch Handbetätigung in die Verriegelungsstellung gebracht werden. Die Lage der jeweiligen Vorrichtung ist nicht genau vorherbestimmbar, was das Erreichen einer sicheren Verriegelungsstellung erschwert.Devices for attaching a precast concrete element to a hoist are often used in practice in such a way that several devices are attached to one precast concrete element. The devices must be brought into the locking position by hand. The position of the respective device cannot be predetermined precisely, which makes it difficult to achieve a secure locking position.

Es ist ein Ziel der Erfindung, eine Vorrichtung für den oben beschriebenen Zweck zu schaffen, bei der die Riegelstellung durch kleine und einfache Betätigungswege erreicht wird und wobei eine hohe Sicherheit gegen Fehlbedienung gegeben ist.It is an object of the invention to provide a device for the purpose described above, in which the locking position is achieved by small and simple actuation paths and with a high level of security against incorrect operation.

Zur Lösung dieser Aufgabe geht die Erfindung aus von der Vorrichtung der eingangs beschriebenen Art und schlägt vor, daß am zweiten Element eine nach unten gerichtete Sicherungsnase angeformt ist, für die am ersten Element eine Aufnahmepfanne vorgesehen ist, daß die wirksame Höhe der Sicherungsnase bzw. die wirksame Tiefe der Aufnahmepfanne annähernd der Größe eines Spieles des zweiten Elementes in der Führung entspricht, und daß am zweiten Element ein von außen sichtbarer Betätigungsarm befestigt ist, der mit einer Schnappsicherung für die beiden Endlagen des zweiten Elementes zusammenwirkt und diese Endlagen anzeigt.To achieve this object, the invention is based on the device of the type described in the introduction and proposes that a downwardly directed securing lug is formed on the second element, for which a receiving pan is provided on the first element, that the effective height of the securing lug or the effective depth of the receiving pan corresponds approximately to the size of a game of the second element in the guide, and that an externally visible actuating arm is attached to the second element, which interacts with a snap lock for the two end positions of the second element and indicates these end positions.

Durch die Ausnützung des Spiels des zweiten Elementes in der Führung läßt sich bei einfacher Bauweise und im Grunde unveränderter Bewegungsmöglichkeit des zweiten Elements in der Führung eine Sicherungsstellung erreichen, die ein unbeabsichtigtes Öffnen der Vorrichtung ausschließt, weil das Gewicht der Last dies verhindert. Der von außen sichtbare Betätigungsraum wiederum läßt leicht auch auf größere Entfernung erkennen, ob sich die Vorrichtung in der Schließstellung befindet oder in der Öffnungsstellung, wobei die Schnappsicherung dafür sorgt, daß die Vorrichtung nicht in einer labilen Zwischenstellung benützt wird.By utilizing the play of the second element in the guide, a simple position and basically unchanged possibility of movement of the second element in the guide can achieve a securing position which prevents the device from being opened unintentionally because the weight of the load prevents this. The actuation space, which is visible from the outside, can in turn easily be recognized even at a greater distance, whether the device is in the closed position or in the open position, the snap lock ensuring that the device is not used in an unstable intermediate position.

Günstig ist hierbei, daß die Sicherung ohne Zusatzwege erreicht wird und insbesondere auch bei verhältnismäßig kurzen Wegen des Riegels, also des zweiten Elements selbst. Es ist klar, daß hierdurch auch eine Fernbedienung wesentlich vereinfacht wird und zwar gleichgültig, mittels welcher Mittel diese Fernbedienung verwirklicht wird.It is favorable here that the security is achieved without additional paths, and in particular also with relatively short paths of the bolt, that is to say the second element itself. It is clear that this also simplifies remote control considerably, regardless of the means by which this remote control is implemented .

Günstig ist es, wenn der Betätigungsarm am zweiten Element rahmenförmig ausgebildet ist und die Schnappsicherung umschließt.It is expedient if the actuating arm is frame-shaped on the second element and encloses the snap lock.

Ferner wird vorgeschlagen, daß am ersten Element ein Druckluftzylinder gelagert ist, dessen Kolbenstange auf das zweite Element in Richtung auf die Öffnungsstellung des Riegels einwirkt. Auf diese Weise wird eine einfache Fernbedienung erhalten, und es können leicht auch eine Mehrzahl von Vorrichtungen gleichzeitig betätigt werden.It is also proposed that a compressed air cylinder is mounted on the first element, the piston rod of which acts on the second element in the direction of the open position of the bolt. In this way, a simple remote control is obtained and a plurality of devices can easily be operated at the same time.

Die bei der Erfindung möglichen kurzen Wege erleichtern die Verwendung eines Druckluftzylinders.The short distances possible with the invention facilitate the use of an air cylinder.

Vorteilhaft ist es, wenn der Druckluftzylinder zwischen zwei verbundenen Platten gelagert ist, die im wesentlichen das erste Element bilden, und zwischen denen das zweite Element beweglich ist.It is advantageous if the compressed air cylinder is mounted between two connected plates which essentially form the first element and between which the second element is movable.

Ferner wird vorgeschlagen, daß die Sicherungsnase an der Unterseite der Zungenspitze angeordnet ist. Die Aufnahmepfanne ist vorzugsweise an einer Brücke zwischen den Platten angeordnet. Diese Brücke verbindet zusätzlich die Platten und die auftretenden Kräfte werden direkt in die Platten eingeleitet.It is also proposed that the securing lug is arranged on the underside of the tip of the tongue. The receiving pan is preferably arranged on a bridge between the plates. This bridge also connects the panels and the forces that occur are directly introduced into the panels.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigt

  • Fig. 1 eine Seitenansicht der erfindungsgemäßen Vorrichtung,
  • Fig. 2 einen Schnitt durch die Darstellung der Fig 1 entsprechend der Schnittlinie 11-11 im verriegelten Zustand,
  • Fig. 3 eine der Darstellung der Fig. 2 entsprechende Darstellung der Vorrichtung im geöffneten Zustand und
  • Fig. 4 eine vergrößerte Darstellung einer Einzelheit der Erfindung.
In the drawing, an embodiment of the invention is shown schematically. It shows
  • 1 is a side view of the device according to the invention,
  • 2 shows a section through the representation of FIG. 1 along the section line 11-11 in the locked state,
  • Fig. 3 is a representation of the device corresponding to Fig. 2 in the open state and
  • Fig. 4 is an enlarged view of a detail of the invention.

Das erste Element 1 der Vorrichtung besteht, wie insbesondere auch aus der Fig. 1 hervorgeht, aus den beiden Platten 9 und 10, die mittels der Brücke 19 und mittels der Hülse 11 fest miteinander verbunden sind. Die Innenbohrung der Hülse 11 ergibt eine Öse für das Drahtseil 23, das beispielsweise Teil eines Hebezeuges ist. Das Hebezeug selbst ist nicht näher dargestellt.The first element 1 of the device consists, as can also be seen in particular from FIG. 1, of the two plates 9 and 10 which are firmly connected to one another by means of the bridge 19 and by means of the sleeve 11. The inner bore of the sleeve 11 results in an eyelet for the wire rope 23, which is part of a hoist, for example. The hoist itself is not shown in detail.

Zwischen den beiden Platten 9 und 10 ist das zweite Element 2 angeordnet, das im wesentlichen ebenfalls eine plattenförmige Gestalt besitzt. Im unteren Bereich sind bei 24 Ansätze vorgesehen, um ein ausreichend großes Auflager 15 für den Tragbügel 21 zu erhalten. Der Tragbügel 21 wird im gezeigten Ausführungsbeispiel von einem Drahtseil gebildet, das fest im Betonfertigteil 25 verankert ist.Between the two plates 9 and 10, the second element 2 is arranged, which also essentially has a plate-like shape. In the lower area 24 approaches are provided in order to obtain a sufficiently large support 15 for the support bracket 21. In the exemplary embodiment shown, the support bracket 21 is formed by a wire rope which is firmly anchored in the precast concrete part 25.

Das Betonfertigteil 25 besitzt dabei eine Ausnehmung 26 für diesen Bügel 21 und die Form der Ausnehmung 26 erlaubt das Einsetzen der im wesentlichen aus den Elementen 1 und 2 bestehenden Vorrichtung zur Erfassung des Bügels 21.The precast concrete part 25 has a recess 26 for this bracket 21 and the shape of the recess 26 allows the insertion of the device consisting essentially of the elements 1 and 2 for detecting the bracket 21.

Für die Aufnahme des Bügels 21 ist in den Platten 9 und 10 ein Schlitz 20 vorgesehen und bei Erfassen des Bügels 21 greift der Riegel 18 des Elementes 2 durch diesen Schlitz hindurch. Die Verriegelungsstellung ist dabei in der Fig. 2 dargestellt.A slot 20 is provided in the plates 9 and 10 for receiving the bracket 21, and when the bracket 21 is gripped, the latch 18 of the element 2 extends through this slot. The locking position is shown in FIG. 2.

Das vordere Ende des Riegels 18 ist als Zunge 22 gestaltet und die Zungenspitze 13 besitzt, wie insbesondere aus der Fig.4 hervorgeht, eine nach unten gerichtete Sicherungsnase 3, für die in der Brücke 19 eine Aufnahmepfanne 4 vorgesehen ist. Die wirksame Höhe der Nase 3 bzw. die wirksame Tiefe der Aufnahmepfanne 4 entspricht dabei annähernd dem Maß, der radialen Beweglichkeit des Elements 2 relativ zur Führung 5, die vom Außenumfang der Hülse 11 gebildet wird. In der Verriegelungsstellung nach den Fig. 2 und 4 kann sich daher die Nase 3 in die Pfanne 4 einlegen und wenn die Zunge 22 durch den Tragbügel 21 belastet ist, ist eine Öffnungsbewegung des Elementes 2 also eine Verdrehung in Richtung des Pfeiles 27 ausgeschlossen.The front end of the bolt 18 is designed as a tongue 22 and the tongue tip 13 has, as can be seen in particular from FIG. 4, a downwardly directed securing lug 3, for which a receiving socket 4 is provided in the bridge 19. The effective height of the nose 3 or the effective depth of the receiving socket 4 corresponds approximately to the dimension, the radial mobility of the element 2 relative to the guide 5, which is formed by the outer circumference of the sleeve 11. In the locking position according to FIGS. 2 and 4, the nose 3 can therefore insert into the pan 4 and if the tongue 22 is loaded by the carrying bracket 21, an opening movement of the element 2 is therefore excluded from twisting in the direction of the arrow 27.

Eine solche Öffnungsbewegung wird zusätzlich auch noch dadurch verhindert, daß das Auflager 15 durch eine Erhöhung 14 begrenzt wird.Such an opening movement is additionally prevented by the fact that the support 15 is limited by an elevation 14.

Bei einem bewährten Ausführungsbeispiel wurde gefunden, daß ein Spiel von 1 Millimeter an der Führung 5 brauchbar ist. Diesem Maß entspricht auch annähernd die wirksame Tiefe der Aufnahmepfanne 4. Die Anordnung wird dabei vorteilhaft derart getroffen, daß in der Verriegelungsstellung die Zungenspitze 13 auf der Brücke 19 aufruht. Das Maß der Erhöhung 14 kann gleichartig gewählt werden, beträgt also ebenfalls ca. 1 Millimeter.In a proven embodiment, it was found that a play of 1 millimeter on the guide 5 can be used. This dimension also corresponds approximately to the effective depth of the receptacle 4. The arrangement is advantageously made such that the tongue tip 13 rests on the bridge 19 in the locked position. The dimension of the elevation 14 can be selected in the same way, that is also approximately 1 millimeter.

Am Element 2 ist der Betätigungsarm 7 befestigt, der eine rahmenartige Gestalt besitzt. Dieser Arm 7 ist gut sichtbar und frei zugänglich. Der Arm 7 umschließt die Schnappsicherung 6 mit der Feder 8 und der Führungsstange 28. Die Führungsstange 28 ist im Drehlager 29 gehalten und findet in der verdrehbaren Stange 30 eine Führung und es ist klar, daß sowohl die Stellung nach der Fig. 3 als auch die Stellung nach der Fig. jeweils durch die Feder 8 gesichert ist. Während die Stange 30 im Arm 7 gelagert ist, stützt sich das Drehlager 29 zwischen den Ansätzen 31 an den Platten 9 und 10 ab.The actuating arm 7, which has a frame-like shape, is attached to the element 2. This arm 7 is clearly visible and freely accessible. The arm 7 encloses the snap lock 6 with the spring 8 and the guide rod 28. The guide rod 28 is held in the pivot bearing 29 and finds a guide in the rotatable rod 30 and it is clear that both the position according to FIG. 3 and the Position according to the Fig. Is secured by the spring 8. While the rod 30 is supported in the arm 7, the pivot bearing 29 is supported on the plates 9 and 10 between the lugs 31.

Die Ansätze 31 der Platten 9 und 10 tragen auch den Druckluftzylinder 16, dessen Druckluftanschluß mit 32 bezeichnet ist. Die Kolbenstange 17 drückt bei Beaufschlagung des Zylinders 16 auf den Ansatz 33 am Element 2. Auf diese Weise kann mittels des Druckluftzylinders 16 das Element 2 aus der Stellung der Fig. 2 in Richtung des Pfeiles 27 in die Öffnungsstellung verstellt werden. Für die Öffnungsstellung sind zwischen den Elementen 1 und 2 nicht näher gezeigte Anschläge vorgesehen.The lugs 31 of the plates 9 and 10 also carry the compressed air cylinder 16, the compressed air connection is designated 32. When the cylinder 16 is acted on, the piston rod 17 presses on the shoulder 33 on the element 2. In this way, by means of the compressed air cylinder 16, the element 2 can be adjusted from the position in FIG. 2 in the direction of arrow 27 to the open position. For the open position, stops (not shown in detail) are provided between elements 1 and 2.

Die Schließstellung d. h. die Verstellung aus der Fig. 3 in die Fig. 2 wird von Hand bewirkt, und zwar am Arm 7.The closed position d. H. the adjustment from FIG. 3 to FIG. 2 is effected by hand, specifically on the arm 7.

Es ist klar, daß die richtige Funktion der erfindungsgemäßen Vorrichtung leicht an der Stellung des Armes 7 auch aus der Ferne erkannt werden kann. Durch die Schnappsicherung und die anderen Mittel wird in jeder Lage der Vorrichtung relativ zum Betonfertigteil eine Schließstellung gewährleistet und durch den Druckluftzylinder kann in jeder solchen Lage die Vorrichtung geöffnet werden. Der Druckluftbedarf ist gering, so daß einfache Hilfsaggregate anwendbar sind.It is clear that the correct function of the device according to the invention can easily be recognized from a distance by the position of the arm 7. The snap lock and the other means ensure a closed position in every position of the device relative to the precast concrete part, and the device can be opened in any such position by the compressed air cylinder. The compressed air requirement is low, so that simple auxiliary units can be used.

Claims (6)

1. Arrangement for attaching a pre-assembled concrete unit to a lifting device comprising of two elements (1, 2) movable relatively to each other wherein first element (1) is having an eye or similar for the attachment to the lifting device and a slot open on the lower side to receive a supporting stirrup member (21) connected to the pre-assembled concrete unit and furthermore having a circular guidance (5) for the second element (2) being designed as a movable remote- controlled latch and a tongue (22) protruding in locked position into a slot (20) so that during lift stirrup (21) rests on tongue (22) including a downward safety lip (3) on a second element (2) and a cup (4) to receive said safety lip which is provided on the first element in such a way that effective height of said safety lip and effective depth of cup respectively is approximately equivalent to play of second element (2) in guidance (5) and an operating arm (7) - visible from the outside - is attached to the second element (2) interacting with a snap safety lock (6) for both positions of the second element (2) and giving indication of said positions.
2. Arrangement as set forth in claim 1 wherein said operating arm (7) has a frame-like configuration and surrounds the snap safety lock (6).
3. Arrangement as set forth in claim 1 wherein said first element (1) having a pneumatic cylinder (16) with piston rod and said rod effecting the second element (2) in direction of open position of latch (18).
4. Arrangement as set forth in claim 3 wherein said pressured-air cylinder (16) is positioned between two connected plates (9, 10) forming substantially the first element (1) and the second element (2) being movable between said plates (9,10).
5. Arrangement as set forth in claim 1 wherein the safety lip (3) is located at the bottom surface of tip tongue (13).
6. Arrangement as set forth in claim 1 or 4 wherein the cup (4) is located at a bridging member (19) between plates (9) and (10).
EP80106180A 1980-10-10 1980-10-10 Device for attaching a pre-assembled concrete unit to a lifting device Expired EP0049708B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT80106180T ATE12757T1 (en) 1980-10-10 1980-10-10 DEVICE FOR ATTACHING A PRECAST CONCRETE PART TO A HOIST.
EP80106180A EP0049708B1 (en) 1980-10-10 1980-10-10 Device for attaching a pre-assembled concrete unit to a lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80106180A EP0049708B1 (en) 1980-10-10 1980-10-10 Device for attaching a pre-assembled concrete unit to a lifting device

Publications (2)

Publication Number Publication Date
EP0049708A1 EP0049708A1 (en) 1982-04-21
EP0049708B1 true EP0049708B1 (en) 1985-04-17

Family

ID=8186842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106180A Expired EP0049708B1 (en) 1980-10-10 1980-10-10 Device for attaching a pre-assembled concrete unit to a lifting device

Country Status (2)

Country Link
EP (1) EP0049708B1 (en)
AT (1) ATE12757T1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004074160A1 (en) * 2003-02-21 2004-09-02 Itw Ramset Australia Pty Ltd Panel lifter lock

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018073107A1 (en) 2016-10-19 2018-04-26 Dsm Ip Assets B.V. Eukaryotic cell comprising xylose isomerase

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US1725609A (en) * 1928-07-11 1929-08-20 Amos Herman Hoisting hook
US1716997A (en) * 1928-10-31 1929-06-11 Antoniow Tassos Logging hook
US2359557A (en) * 1944-06-07 1944-10-03 Hoffman Robert Safety tackle hook
US2561017A (en) * 1949-07-08 1951-07-17 Chicago Steel Foundry Company Safety hook
US2613101A (en) * 1950-10-17 1952-10-07 Roberson Claude Mcjunis Hook latch operating mechanism
US2736599A (en) * 1952-03-08 1956-02-28 Duff Norton Co Drop hook
US2864644A (en) * 1957-09-30 1958-12-16 Earl A Marryatt Cargo hooks
US2987341A (en) * 1959-10-28 1961-06-06 Peck & Hale Releasable hook
DE2240171C3 (en) * 1972-08-16 1975-06-05 Frimeda Metall- Und Drahtwarenfabrik Siegfried Fricker, 7131 Wiernsheim Transport anchor
DE7441641U (en) * 1974-12-14 1976-06-16 Fa. Hugo Wupper, 4600 Dortmund LOAD LIFTING EQUIPMENT FOR EARTHED ACCESSORIES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004074160A1 (en) * 2003-02-21 2004-09-02 Itw Ramset Australia Pty Ltd Panel lifter lock

Also Published As

Publication number Publication date
ATE12757T1 (en) 1985-05-15
EP0049708A1 (en) 1982-04-21

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