EP2424810B1 - Lifting hook - Google Patents

Lifting hook Download PDF

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Publication number
EP2424810B1
EP2424810B1 EP10722915.5A EP10722915A EP2424810B1 EP 2424810 B1 EP2424810 B1 EP 2424810B1 EP 10722915 A EP10722915 A EP 10722915A EP 2424810 B1 EP2424810 B1 EP 2424810B1
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EP
European Patent Office
Prior art keywords
safety latch
blocking
pivot pin
frame profile
hook
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.)
Active
Application number
EP10722915.5A
Other languages
German (de)
French (fr)
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EP2424810A1 (en
Inventor
Bernd Renz
Werner Schneider
Sergio Altavini
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.)
Peri GmbH
Original Assignee
Peri GmbH
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Filing date
Publication date
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Publication of EP2424810A1 publication Critical patent/EP2424810A1/en
Application granted granted Critical
Publication of EP2424810B1 publication Critical patent/EP2424810B1/en
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Classifications

    • 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
    • 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
    • B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • 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
    • E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E04G19/003—Arrangements for stabilising the forms or for moving the forms from one place to another

Definitions

  • the invention relates to a Versetzhaken for moving Betonschalungs instituten with a hook having an opening for receiving a frame profile of the concrete formwork element, and a pivotable about a pivot pin on the hook about a pivot axis from a blocking position via a blocking position in a release position and forth mounted safety latch with at least one locking surface.
  • the opening in the blocking position of the securing pawl, the opening is blocked such that picking up of a frame profile in the opening is prevented and in the blocking position a frame profile accommodated in the opening is secured by abutment of the blocking surface on the frame profile.
  • Such a Versetzhaken is in the DE 31 11 634 A1 disclosed.
  • a ring-forming bracket is attached to the hook, which serves to attach a crane hook for attracting the Versetzhakens when moving a Betonschalungselements.
  • the safety pawl is held by gravity in the locked position and therefore can easily fall out of the locked position, if, for example, shortly after receiving the frame profile of the concrete formwork element in the opening of the hook, the Versetzhaken is not yet sufficiently tensioned by the crane hook that a Chain or a pull rope to which the crane hook is attached, is tightened.
  • Improved Versetzhaken therefore have in a region facing away from the locking surface of the safety latch fastening means for securing a chain, which serves for freight lift.
  • the safety latch When loading the fastener by a tensile force by means of the chain, the safety latch is thereby forced into the blocking position or blocking position.
  • the latter is achieved in that by pulling on the fastening means a torque is exerted about the pivot pin, whereby the tensile force is deflected into a compressive force on the, relative to the pivot pin, the fastening means opposite side of the seepage pawl.
  • Such a recorded in the opening of the hook frame profile of a concrete formwork element can be kept very safe in Versetzhaken.
  • the invention has for its object to provide a Versetzhaken for moving concrete formwork elements in the construction sector, which avoids the disadvantages of the prior art, in particular with a lighter and safer handling of the Versetzhakens is possible.
  • the Versetzhaken invention for moving concrete formwork elements, with a hook having an opening for receiving a frame profile of the concrete formwork element, and a pivotable about a pivot pin on the hook about a pivot axis from a blocking position via a locking position to a release position and pivotally mounted locking pawl the at least one blocking surface is formed.
  • the securing pawl blocks the opening such that receiving a frame profile is prevented in the opening and in the blocking position is a recorded in the opening frame profile by concerns of Locking surface secured to the frame profile.
  • a remote from the blocking surface area of the securing pawl fastening means are provided for securing a chain, such that when loading the fastening means by a tensile force by means of the chain, the securing pawl is forced into the blocking position and / or the blocking position.
  • the remote area is thus located on the securing pawl that acts by a force acting on the fastening means by means of the chain tension a torque about the pivot axis, and the blocking surface in a direction against the tensile force, ie when lifting the Versetzhakens by means of the chain in one after down direction, is pressed.
  • an operating extension for pivoting the securing pawl from the blocking position to the release position is provided on an end region of the securing pawl facing away from the attachment means, wherein the operating extension is set up to engage substantially perpendicularly to the pintle by an operating rod.
  • the stowing hook according to the invention can thus be operated by means of an operating rod, such as a reinforcing bar, eg from below, wherein the pawl can be pivoted from the blocking position, or the blocking position in the release position, that in the release position either a frame profile from the opening of the hook can be removed or a frame profile can be included therein.
  • An operator can pivot by means of the operating rod, the safety latch and does not have to rise to their operation, for example, on a ladder.
  • the handling of the Verstellhakens invention is therefore much easier to use than the handling of known Versetzhaken. The latter not only increases occupational safety, but can also lead to an acceleration of the work processes when moving concrete formwork elements.
  • the operating extension has a hole for receiving a free end of the operating rod, in particular wherein the hole is provided in a control plate provided on the operating panel.
  • the hole is provided in a control plate provided on the operating panel.
  • the hook according to the invention advantageously has two side plates arranged parallel to one another, wherein the side plates are connected to one another by the pivot pin and at least one connecting strut and wherein the securing pawl is arranged between the side plates.
  • the side plates are connected to one another by the pivot pin and at least one connecting strut and wherein the securing pawl is arranged between the side plates.
  • the operating extension can not catch on objects occurring in the operating region of the displacing hook, ie not in the chain as well.
  • the operating extension then remains, especially when the Versetzhaken is raised by pulling on the chain, within the dimensions of the side plates.
  • a spring mechanism wherein the spring mechanism pushes the safety pawl in the blocking position and / or the blocking position, the safety pawl can be held automatically in a protected position within the side plates even without traction by a chain.
  • the locking pawl has two locking surfaces, frame profiles of different thicknesses can be secured particularly securely in the opening of the hook.
  • a passage for a provided on the fastening means of the securing pawl for securing chain is formed.
  • This passage serves as a chain deflector for the chain, which is attached to the fastening means of the securing pawl. That it is avoided that the chain in the relaxed state, i. if no tensile force is applied to the chain, falls into the opening of the hook, making it impossible to attach the hook to a frame profile.
  • pivot pin near free end bounded by a connecting the side plates bolt.
  • the passage can be easily formed between the side plates.
  • FIGS. 1a and 1b show a Versetzhaken invention, wherein the securing pawl is pivoted by means of an operating rod in its release position.
  • FIGS. 2a and 2 B show the Versetzhaken invention, wherein the securing pawl is in the locked position and a recorded in the opening of the hook of the Versetzhakens frame profile is secured by abutment of the locking surface on the frame profile.
  • FIGS. 3a and 3b show the Versetzhakens invention, wherein the locking pawl blocked in the blocking position, the opening of the hook of the Versetzhakens such that a receiving a frame profile in the opening is prevented.
  • FIG. 4 shows the Versetzhaken the FIGS. 1 to 3 in another view.
  • FIGS. 1a and 1b an inventive Versetzhaken 1 is shown, wherein the securing pawl 2 is pivoted by means of an operating rod 3 in its release position.
  • FIG. 1a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to Pivot 5 of the Versetzhakens 1 shown.
  • FIG. 1b an oblique perspective view of the Versetzhakens 1 is shown.
  • the Versetzhaken 1 has a hook 7 with a C-shaped basic shape, whereby the hook 7 has an opening 8 for receiving a frame profile 9 of a concrete formwork element.
  • the hook 7 is formed by two mutually parallel side plates 12 made of flat steel.
  • the side plates 12 are interconnected by the pivot pin 5 and a plurality of connecting struts 14.
  • the connecting struts 14 may be welded to the side plates 12, for example.
  • the connecting struts 14 of two flat steel parts and a hollow section steel are formed with a substantially square cross-section.
  • Another connecting strut is formed by a bolt connecting the side plates 12 17 in the region of a free end of the hook 7 near the pivot pin.
  • This bolt 17 further limits a passage 18 for a chain 19, by means of which the Versetzhaken 1 is to raise, ie by means of which train on the Versetzhaken 1 is exercised, so usually by hooking the chain 19 is lifted to a crane hook the Versetzhaken 1.
  • the passage 18 is bounded by the side plates 12, the bolt 17 and one of the flat steel parts. Due to the arrangement of the passage 18 in the region of the pivot pin near free end of the hook 7 is from the bolt 17 or from the entire bushing 18 a chain deflector for the chain 19 is formed. This prevents the chain 19 from blocking the opening 8.
  • the safety pawl 2 is pivotable about a pivot axis formed by the pintle 5 from a blocking position to a locked position in the illustrated release position and disposed between the side plates 12.
  • the pivoting is in FIG. 1a symbolically represented by a curved double arrow.
  • the pivot pin 5 is arranged in an upper region of the hook 7.
  • the safety latch 2 has two locking surfaces 20. Depending on the thickness of the frame profile 9, the upper, ie the pivot pin near, or the lower, ie the navbolzenfernere, the blocking surfaces 20th comes in this case, to secure a received in the opening 8 frame profile 9 by abutment of the locking surface 20 to the concern to the respective frame profile 9.
  • the safety latch 2 is essentially made of a flat steel, to which the likewise formed by a flat steel locking surfaces 20 are fixed with their main planes perpendicular to each other.
  • fastening means 30 are provided for attaching the chain 19.
  • These fastening means 30 are designed as a slot in the securing pawl 2, which adjoins one end of the pivot pin 5.
  • the chain 19 engages with one of its chain links 31, ie the last chain link 31 of the chain 19 surrounds the free end of the safety pawl 2.
  • the area in which the fastening means 30 are arranged, is so remote from the locking surfaces 20, that when loading the fastener 30 by a, in particular with a component upwardly acting tensile force F Z by means of the chain 19, the safety pawl 2 is forced into the blocking position, ie a torque is applied to the pivot pin 5 around, by means of which the blocking surfaces 20 down, against the pulling direction, be pressed.
  • an operating extension 35 is provided for pivoting the securing pawl 2 from the blocking position via the blocking position into the release position.
  • This operating extension 35 is set up to engage the operating rod 3 in a direction substantially perpendicular to the pivot pin 5, so that a correspondingly directed pressure force F D can be exerted on the operator extension 35 and thus the securing pawl 2 with the operating rod 3.
  • the operating rod 3 can be formed by a simple iron rod, for example made of reinforcing steel.
  • the hook 7 is designed to be open in the region in which the operating extension 35 is arranged. That is, in this area no connecting struts 14 are arranged between the side plates 12 of the hook 7.
  • the operating extension 35 has a hole 36 for receiving a free end of the operating rod 3.
  • This hole 36 is provided in a provided on the operating extension 35 control plate 37 which is located in a plane which is parallel to the pivot pin 5.
  • a free end of the operating rod 3 is passed through the hole 36 as shown, it bumps the free end of the operating rod 3 to a lying behind the hole 36, formed by the flat steel of the securing blade 2 region of the operating extension 35 at.
  • a compressive force F D on the operating extension 35 by means of the operating rod 3, ie by pushing up the operating rod 3, a torque is exerted about the pivot pin 5, whereby the securing pawl 2 is pressed or pivoted into its release position.
  • FIGS. 2a and 2 B is the Versetzhaken 1 off FIG. 1a and 1b shown that its safety pawl 2 is in the locked position and a received in the opening of the hook 7 of the Versetzhakens 1 frame profile 9 is secured by abutment of the locking surface 20 on the frame section 9.
  • FIG. 2a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to the pivot pin 5 of the Versetzhakens 1 shown.
  • FIG. 2b an oblique perspective view of the Versetzhakens 1 is shown. Since the frame profile 9 has a relatively large thickness, the upper locking surface 20 rests against the frame profile 9 for securing it.
  • the nose 10 at the lower free end of the hook 7 engages in a recess 40 in the frame section 9.
  • the hook 7 In order to remove the hook 7 from the frame profile 9, ie the frame profile 9 from the opening 8 of the hook 7, the hook 7 must first be tilted slightly in the direction of the curved arrow shown by means of the operating rod 3. Then, by means of the operating rod 3, an upward force F D is exerted and the securing pawl 2 is pivoted into its release position, whereupon the frame profile 9 can be removed from the opening 8, or the transfer hook 1 can be removed from the frame profile 9.
  • the operating extension 35 does not protrude perpendicularly to the pivot pin 5 substantially beyond the dimensions of the side plates 12 of the hook 7. That at least in the blocking position, the side plates 12 almost completely cover the operating extension 35 perpendicular to the pivot pin 5 and the operating extension 35 remains within the dimensions of the side plates 12.
  • FIGS. 3a and 3b is the Versetzhaken 1 off FIG. 1a and 1b shown so that its locking pawl 2 blocked in the blocking position, the opening 8 of the hook 7 of the Versetzhakens 1 such that a receiving a frame profile in the opening 8 is prevented.
  • This position of the securing pawl 2 is then assumed when no frame profile is arranged in the opening 8 of the hook 7 and a vertically upward pulling force F Z of sufficient strength is exerted by the chain 19 on the securing pawl 2.
  • FIG. 3a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to the pivot pin 5 of the Versetzhakens 1 shown.
  • FIG. 3a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to the pivot pin 5 of the Versetzhakens 1 shown.
  • FIG. 3b is an oblique perspective view of the Versetzhakens 1 with a view from below, ie in the engagement direction of the operating rod 3, shown.
  • the operating rod 3 for exerting a compressive force F D to pivot the safety pawl 2 in its release position, inserted with its free end in the hole 36 of the operating extension 35.
  • FIG. 4 shows the Versetzhaken the FIGS. 1a to 3b in another view.
  • the viewing direction of this view is so perpendicular to the pivot pin 5 that the shape of the parallel to the pivot pin 5 aligned Parts of the arranged between the side plates 12 of the hook 7 securing pawl 2 is clearly visible.
  • the position of the blocking surfaces 20 forming parts and the control panel 37 of the operating extension 35 is clearly visible.
  • the free end of an operating rod 3 is located. The operating rod 3 is aligned so that it engages in a further perpendicular to the pivot pin 5 directed movement into the hole 36 of the operating extension 35.
  • a spring mechanism 40 which presses the safety pawl 2 in the blocking position and / or the blocking position.
  • This spring mechanism 40 has one around a steel spring 42 which is guided around a screw 41 screwed into one of the side plates 12 and engages one end on the safety pawl 2 and another end is locked on the hook 7.
  • a Versetzhaken 1 for moving Betonschalungs comprisen with a hook 7 having an opening 8 for receiving a frame profile 9 of the concrete formwork element, and one about a pivot pin 5 on the hook 7 about a pivot axis of a blocking position via a blocking position in a release position - And pivotally mounted locking pawl 2 with at least one locking surface 20, wherein in the blocking position, the locking pawl 2, the opening 8 blocked so that a receiving a frame profile 9 in the opening 8 is prevented and in the blocking position a recorded in the opening 8 frame profile 9 is secured by concerns the blocking surface 20 on the frame profile 9, and wherein in a remote from the blocking surface 20 of the securing pawl 2 fastening means 30 are provided for attaching a chain 19, such that when loading the fastener 30 by a tensile force by means of the chain 19, the safety pawl 2 is forced into the blocking position and / or the blocking position ,
  • an operating extension 35 is provided for pivoting the securing pawl 2 from
  • the invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Description

Die Erfindung betrifft einen Versetzhaken zum Versetzen von Betonschalungselementen mit einem Haken, der eine Öffnung zur Aufnahme eines Rahmenprofils des Betonschalungselementes aufweist, und einer über einen Drehbolzen an dem Haken um eine Schwenkachse von einer Blockierstellung über eine Sperrstellung in eine Freigabestellung hin- und her- schwenkbar gelagerten Sicherungsklinke mit mindestens einer Sperrfläche. Dabei ist in der Blockierstellung der Sicherungsklinke die Öffnung derart blockiert, dass ein Aufnehmen eines Rahmenprofils in der Öffnung verhindert ist und in der Sperrstellung ist ein in der Öffnung aufgenommenes Rahmenprofil durch Anliegen der Sperrfläche an dem Rahmenprofil gesichert.The invention relates to a Versetzhaken for moving Betonschalungselementen with a hook having an opening for receiving a frame profile of the concrete formwork element, and a pivotable about a pivot pin on the hook about a pivot axis from a blocking position via a blocking position in a release position and forth mounted safety latch with at least one locking surface. In this case, in the blocking position of the securing pawl, the opening is blocked such that picking up of a frame profile in the opening is prevented and in the blocking position a frame profile accommodated in the opening is secured by abutment of the blocking surface on the frame profile.

Ein derartiger Versetzhaken ist in der DE 31 11 634 A1 offenbart. In einem Bereich des Hakens, in dem der Drehbolzen angeordnet ist, ist ein eine Ringform ausbildender Bügel am Haken befestigt, der zur Befestigung eines Kranhakens zum Anziehen des Versetzhakens beim Versetzen eines Betonschalungselements dient. Die Sicherungsklinke wird durch die Schwerkraft in die Sperrstellung gehalten und kann daher leicht aus der Sperrstellung herausfallen, wenn, z.B. kurz nach dem Aufnehmen des Rahmenprofils des Betonschalungselements in der Öffnung des Hakens, der Versetzhaken noch nicht durch den Kranhaken derart ausreichend zugbelastet ist, dass eine Kette oder ein Zugseil, an dem der Kranhaken befestigt ist, gestrafft ist.Such a Versetzhaken is in the DE 31 11 634 A1 disclosed. In a region of the hook in which the pivot pin is arranged, a ring-forming bracket is attached to the hook, which serves to attach a crane hook for attracting the Versetzhakens when moving a Betonschalungselements. The safety pawl is held by gravity in the locked position and therefore can easily fall out of the locked position, if, for example, shortly after receiving the frame profile of the concrete formwork element in the opening of the hook, the Versetzhaken is not yet sufficiently tensioned by the crane hook that a Chain or a pull rope to which the crane hook is attached, is tightened.

Verbesserte Versetzhaken weisen daher in einem der Sperrfläche abgewandten Bereich der Sicherungsklinke Befestigungsmittel zum Befestigen einer Kette auf, die zum Lastenaufzug dient. Beim Belasten der Befestigungsmittel durch eine Zugkraft mittels der Kette wird die Sicherungsklinke dabei in die Blockierstellung bzw. Sperrstellung gezwungen. Letzteres erfolgt dadurch, dass durch das Ziehen an den Befestigungsmitteln ein Drehmoment um den Drehbolzen ausgeübt wird, wodurch die Zugkraft in eine Druckkraft auf der, relativ zum Drehbolzen, den Befestigungsmitteln gegenüberliegenden Seite der Sickerungsklinke umgelenkt wird. Derart kann ein in der Öffnung des Hakens aufgenommenes Rahmenprofil eines Betonschalungselements sehr sicher im Versetzhaken gehalten werden.
Bei den verbesserten Versetzhaken besteht jedoch das Problem, dass die Sicherungsklinke ohne deren Verschwenken durch eine Bedienperson immer in der Sperrstellung, bzw. Blockierstellung verbleibt. Um die Sicherungsklinke in die Freigabestellung zu verschwenken, muss die Bedienperson also an den Versetzhaken mit meist beiden Händen heranreichen. Letzteres führt insbesondere bei hohen Betonschalungselementen dazu, dass die Bedienperson z.B. auf eine Leiter steigen muss.Improved Versetzhaken therefore have in a region facing away from the locking surface of the safety latch fastening means for securing a chain, which serves for freight lift. When loading the fastener by a tensile force by means of the chain, the safety latch is thereby forced into the blocking position or blocking position. The latter is achieved in that by pulling on the fastening means a torque is exerted about the pivot pin, whereby the tensile force is deflected into a compressive force on the, relative to the pivot pin, the fastening means opposite side of the seepage pawl. Such a recorded in the opening of the hook frame profile of a concrete formwork element can be kept very safe in Versetzhaken.
In the improved Versetzhaken, however, there is the problem that the safety latch always remains in the locked position or blocking position without their pivoting by an operator. To the To pivot the safety latch in the release position, the operator must therefore reach to the Versetzhaken with mostly both hands. The latter leads, in particular in the case of high concrete formwork elements, to the fact that the operator, for example, has to climb onto a ladder.

Der Erfindung liegt die Aufgabe zugrunde, einen Versetzhaken zum Versetzen von Betonschalungselementen im Baubereich bereitzustellen, welche Nachteile des Standes der Technik vermeidet, insbesondere wobei eine leichtere und sicherere Handhabung des Versetzhakens möglich ist.The invention has for its object to provide a Versetzhaken for moving concrete formwork elements in the construction sector, which avoids the disadvantages of the prior art, in particular with a lighter and safer handling of the Versetzhakens is possible.

Diese Aufgabe wird durch den Versetzhaken nach dem unabhängigen Anspruch gelöst. Die abhängigen Ansprüche stellen bevorzugte Ausführungsformen der Erfindung dar.This object is achieved by the Versetzhaken according to the independent claim. The dependent claims represent preferred embodiments of the invention.

Der erfindungsgemäße Versetzhaken zum Versetzen von Betonschalungselementen, mit einem Haken, der eine Öffnung zur Aufnahme eines Rahmenprofils des Betonschalungselementes aufweist, und einer über einen Drehbolzen an dem Haken um eine Schwenkachse von einer Blockierstellung über eine Sperrstellung in eine Freigabestellung hin und her schwenkbar gelagerten Sicherungsklinke an der mindestens eine Sperrfläche ausgebildet ist. In der Blockierstellung blockiert die Sicherungsklinke die Öffnung derart, dass ein Aufnehmen eines Rahmenprofils in der Öffnung verhindert ist und in der Sperrstellung ist ein in der Öffnung aufgenommenes Rahmenprofil durch Anliegen der Sperrfläche an dem Rahmenprofil gesichert. In einem von der Sperrfläche entfernten Bereich der Sicherungsklinke sind Befestigungsmittel zum Befestigen einer Kette vorgesehen, derart, dass beim Belasten der Befestigungsmittel durch eine Zugkraft mittels der Kette die Sicherungsklinke in die Blockierstellung und/oder die Sperrstellung gezwungen wird. Der entfernte Bereich ist also derart an der Sicherungsklinke gelegen, dass durch eine mittels der Kette an den Befestigungsmitteln wirkende Zugkraft ein Drehmoment um die Schwenkachse wirkt, und die Sperrfläche in eine Richtung entgegen der Zugkraft, also bei Anheben des Versetzhakens mittels der Kette in eine nach unten gerichtete Richtung, gedrückt wird.
Erfindungsgemäß ist an einem den Befestigungsmitteln abgewandten Endbereich der Sicherungsklinke ein Bedienfortsatz zum Schwenken der Sicherungsklinke von der Blockierstellung in die Freigabestellung vorgesehen, wobei der Bedienfortsatz zu einem im Wesentlichen senkrecht zum Drehbolzen gerichteten Eingreifen durch eine Bedienstange eingerichtet ist.The Versetzhaken invention for moving concrete formwork elements, with a hook having an opening for receiving a frame profile of the concrete formwork element, and a pivotable about a pivot pin on the hook about a pivot axis from a blocking position via a locking position to a release position and pivotally mounted locking pawl the at least one blocking surface is formed. In the blocking position, the securing pawl blocks the opening such that receiving a frame profile is prevented in the opening and in the blocking position is a recorded in the opening frame profile by concerns of Locking surface secured to the frame profile. In a remote from the blocking surface area of the securing pawl fastening means are provided for securing a chain, such that when loading the fastening means by a tensile force by means of the chain, the securing pawl is forced into the blocking position and / or the blocking position. The remote area is thus located on the securing pawl that acts by a force acting on the fastening means by means of the chain tension a torque about the pivot axis, and the blocking surface in a direction against the tensile force, ie when lifting the Versetzhakens by means of the chain in one after down direction, is pressed.
According to the invention, an operating extension for pivoting the securing pawl from the blocking position to the release position is provided on an end region of the securing pawl facing away from the attachment means, wherein the operating extension is set up to engage substantially perpendicularly to the pintle by an operating rod.

Der erfindungsgemäße Versetzhaken kann also mittels einer Bedienstange, etwa einer Armiereisenstange, z.B. von unten bedient werden, wobei die Sperrklinke derart von der Sperrstellung, bzw. der Blockierstellung in die Freigabestellung geschwenkt werden kann, dass in der Freigabestellung entweder ein Rahmenprofil aus der Öffnung des Hakens entnommen werden kann oder ein Rahmenprofil darin aufgenommen werden kann. Eine Bedienperson kann mittels der Bedienstange die Sicherungsklinke verschwenken und muss nicht zu deren Bedienung z.B. auf eine Leiter steigen. Die Handhabung des erfindungsgemäßen Versetzhakens ist daher wesentlich bedienungsfreundlicher als die Handhabung bekannter Versetzhaken. Letzteres erhöht nicht nur die Arbeitssicherheit, sondern kann auch zu einer Beschleunigung der Arbeitsvorgänge beim Versetzen von Betonschalungselementen führen.The stowing hook according to the invention can thus be operated by means of an operating rod, such as a reinforcing bar, eg from below, wherein the pawl can be pivoted from the blocking position, or the blocking position in the release position, that in the release position either a frame profile from the opening of the hook can be removed or a frame profile can be included therein. An operator can pivot by means of the operating rod, the safety latch and does not have to rise to their operation, for example, on a ladder. The handling of the Verstellhakens invention is therefore much easier to use than the handling of known Versetzhaken. The latter not only increases occupational safety, but can also lead to an acceleration of the work processes when moving concrete formwork elements.

Bevorzugt weist der Bedienfortsatz ein Loch zur Aufnahme eines freien Endes der Bedienstange auf, insbesondere wobei das Loch in einer am Bedienfortsatz vorgesehenen Bedienplatte vorgesehen ist. Derart kann ein freies Ende der Bedienstange leicht und sicher am Bedienfortsatz eingreifen, ohne dass das freie Ende verrutschen kann.Preferably, the operating extension has a hole for receiving a free end of the operating rod, in particular wherein the hole is provided in a control plate provided on the operating panel. In this way, a free end of the operating rod can easily and securely engage the operating extension without the free end being able to slip.

Der erfindungsgemäße Haken weist vorteilhaft zwei parallel zueinander angeordnete Seitenplatten auf, wobei die Seitenplatten durch den Drehbolzen und mindestens eine Verbindungsstrebe miteinander verbunden sind und wobei die Sicherungsklinke zwischen den Seitenplatten angeordnet ist. Auf diese Weise lässt sich eine sehr robuste Ausführung des Versetzhakens gewährleisten, wobei insbesondere die Sicherungsklinke durch die Seitenplatten geschützt angeordnet ist.The hook according to the invention advantageously has two side plates arranged parallel to one another, wherein the side plates are connected to one another by the pivot pin and at least one connecting strut and wherein the securing pawl is arranged between the side plates. In this way, a very robust design of the Versetzhakens ensure, in particular, the safety latch is arranged protected by the side plates.

Wenn zumindest in der Sperrstellung die Seitenplatten den Bedienfortsatz bevorzugt vollständig überdecken, kann der Bedienfortsatz sich nicht an im Bedienbereich des Versetzhakens vorkommenden Gegenständen, d.h. auch nicht in der Kette, verhaken. Der Bedienfortsatz verbleibt dann, insbesondere wenn der Versetzhaken durch Ziehen an der Kette angehoben wird, innerhalb der Abmessungen der Seitenplatten.If, at least in the blocking position, the side plates preferably completely cover the operating extension, the operating extension can not catch on objects occurring in the operating region of the displacing hook, ie not in the chain as well. The operating extension then remains, especially when the Versetzhaken is raised by pulling on the chain, within the dimensions of the side plates.

Wenn ein Federmechanismus vorgesehen ist, wobei der Federmechanismus die Sicherungsklinke in die Blockierstellung und/oder die Sperrstellung drückt, kann auch ohne Zugkraft durch eine Kette die Sicherungsklinke selbsttätig in einer geschützten Position innerhalb der Seitenplatten gehalten werden.If a spring mechanism is provided, wherein the spring mechanism pushes the safety pawl in the blocking position and / or the blocking position, the safety pawl can be held automatically in a protected position within the side plates even without traction by a chain.

Wenn die Sicherungsklinke zwei Sperrflächen aufweist, können Rahmenprofile unterschiedlicher Stärke besonders sicher in der Öffnung des Hakens gesichert werden.If the locking pawl has two locking surfaces, frame profiles of different thicknesses can be secured particularly securely in the opening of the hook.

Besonders bevorzugt ist im Bereich eines drehbolzennahen freien Endes des Hakens eine Durchführung für eine an den Befestigungsmitteln der Sicherungsklinke zum Befestigen vorgesehene Kette ausgebildet. Diese Durchführung dient als Kettenabweiser für die Kette, die an den Befestigungsmitteln der Sicherungsklinke befestigt ist. D.h. es wird vermieden, dass die Kette im entspannten Zustand, d.h. wenn keine Zugkraft an der Kette anliegt, in die Öffnung des Hakens fällt und somit ein Ansetzen des Hakens an einem Rahmenprofil unmöglich macht.Particularly preferred in the region of a free pivot end of the hook a passage for a provided on the fastening means of the securing pawl for securing chain is formed. This passage serves as a chain deflector for the chain, which is attached to the fastening means of the securing pawl. That it is avoided that the chain in the relaxed state, i. if no tensile force is applied to the chain, falls into the opening of the hook, making it impossible to attach the hook to a frame profile.

Besonders vorteilhaft ist die Durchführung an dem drehbolzennahen freien Ende durch einen die Seitenplatten verbindenden Bolzen begrenzt. Derart kann die Durchführung auf einfache Weise zwischen den Seitenplatten ausgebildet sein.Particularly advantageous is the implementation of the pivot pin near free end bounded by a connecting the side plates bolt. In this way, the passage can be easily formed between the side plates.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen näher erläutert.The invention will be explained in more detail by means of embodiments with reference to the drawings.

Die Figuren 1a und 1b zeigen einen erfindungsgemäßen Versetzhaken, wobei dessen Sicherungsklinke mittels einer Bedienstange in ihre Freigabestellung geschwenkt ist.The FIGS. 1a and 1b show a Versetzhaken invention, wherein the securing pawl is pivoted by means of an operating rod in its release position.

Die Figuren 2a und 2b zeigen den erfindungsgemäßen Versetzhaken, wobei dessen Sicherungsklinke sich in der Sperrstellung befindet und ein in der Öffnung des Hakens des Versetzhakens aufgenommenes Rahmenprofil durch Anliegen der Sperrfläche an dem Rahmenprofil gesichert ist.The FIGS. 2a and 2 B show the Versetzhaken invention, wherein the securing pawl is in the locked position and a recorded in the opening of the hook of the Versetzhakens frame profile is secured by abutment of the locking surface on the frame profile.

Die Figuren 3a und 3b zeigen den erfindungsgemäßen Versetzhakens, wobei dessen Sicherungsklinke in der Blockierstellung die Öffnung des Hakens des Versetzhakens derart blockiert, dass ein Aufnehmen eines Rahmenprofils in der Öffnung verhindert ist.The FIGS. 3a and 3b show the Versetzhakens invention, wherein the locking pawl blocked in the blocking position, the opening of the hook of the Versetzhakens such that a receiving a frame profile in the opening is prevented.

Figur 4 zeigt den Versetzhaken der Figuren 1 bis 3 in einer weiteren Ansicht. FIG. 4 shows the Versetzhaken the FIGS. 1 to 3 in another view.

Die Figuren der Zeichnungen zeigen den erfindungsgemäßen Gegenstand stark schematisiert und sind nicht maßstäblich zu verstehen. Die einzelnen Bestandteile des erfindungsgemäßen Gegenstandes sind so dargestellt, dass ihr Aufbau gut gezeigt werden kann.The figures of the drawings show the subject matter of the invention in a highly schematic manner and are not to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In den Figuren 1a und 1b ist ein erfindungsgemäßer Versetzhaken 1 dargestellt, wobei dessen Sicherungsklinke 2 mittels einer Bedienstange 3 in ihre Freigabestellung geschwenkt ist. In Figur 1a ist ein Schnittbild durch den Versetzhaken 1 in einer Schnittebene senkrecht zum Drehbolzen 5 des Versetzhakens 1 gezeigt. In Figur 1b ist eine perspektivische Schrägansicht des Versetzhakens 1 gezeigt.
Der Versetzhaken 1 weist einen Haken 7 mit einer C-förmigen Grundform auf, wodurch der Haken 7 eine Öffnung 8 zur Aufnahme eines Rahmenprofils 9 eines Betonschalungselements aufweist. Im Bereich eines unteren freien Endes des Hakens 7 ist eine in die Öffnung hinein stehende Nase 10 vorgesehen, die zum Eingreifen in eine Ausnehmung im Rahmenprofil 9 ausgebildet ist.
Der Haken 7 wird von zwei parallel zueinander angeordneten Seitenplatten 12 aus Flachstahl ausgebildet. Die Seitenplatten 12 sind durch den Drehbolzen 5 und mehrere Verbindungsstreben 14 miteinander verbunden. Die Verbindungsstreben 14 können z.B. an den Seitenplatten 12 angeschweißt sein. Beim dargestellten Versetzhaken 1 sind die Verbindungsstreben 14 von zwei Flachstahlteilen und einem Hohlprofilstahl mit im Wesentlichen quadratischem Querschnitt ausgebildet.In the FIGS. 1a and 1b an inventive Versetzhaken 1 is shown, wherein the securing pawl 2 is pivoted by means of an operating rod 3 in its release position. In FIG. 1a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to Pivot 5 of the Versetzhakens 1 shown. In FIG. 1b an oblique perspective view of the Versetzhakens 1 is shown.
The Versetzhaken 1 has a hook 7 with a C-shaped basic shape, whereby the hook 7 has an opening 8 for receiving a frame profile 9 of a concrete formwork element. In the region of a lower free end of the hook 7, a nose 10 projecting into the opening is provided, which is designed to engage in a recess in the frame profile 9.
The hook 7 is formed by two mutually parallel side plates 12 made of flat steel. The side plates 12 are interconnected by the pivot pin 5 and a plurality of connecting struts 14. The connecting struts 14 may be welded to the side plates 12, for example. In the illustrated Versetzhaken 1, the connecting struts 14 of two flat steel parts and a hollow section steel are formed with a substantially square cross-section.

Eine weitere Verbindungsstrebe wird durch einen die Seitenplatten 12 verbindenden Bolzen 17 im Bereich eines drehbolzennahen freien Endes des Hakens 7 ausgebildet. Dieser Bolzen 17 begrenzt weiter eine Durchführung 18 für eine Kette 19, mittels derer der Versetzhaken 1 anzuheben ist, d.h. mittels derer Zug auf den Versetzhaken 1 ausübbar ist, also üblicherweise durch Einhaken der Kette 19 auf einen Kranhaken der Versetzhaken 1 angehoben wird. Die Durchführung 18 wird durch die Seitenplatten 12, den Bolzen 17 und eines der Flachstahlteile begrenzt. Durch die Anordnung der Durchführung 18 im Bereich des drehbolzennahen freien Endes des Hakens 7 wird von dem Bolzen 17 bzw. von der gesamten Durchführung 18 ein Kettenabweiser für die Kette 19 ausgebildet. Der verhindert, dass die Kette 19 die Öffnung 8 blockiert.Another connecting strut is formed by a bolt connecting the side plates 12 17 in the region of a free end of the hook 7 near the pivot pin. This bolt 17 further limits a passage 18 for a chain 19, by means of which the Versetzhaken 1 is to raise, ie by means of which train on the Versetzhaken 1 is exercised, so usually by hooking the chain 19 is lifted to a crane hook the Versetzhaken 1. The passage 18 is bounded by the side plates 12, the bolt 17 and one of the flat steel parts. Due to the arrangement of the passage 18 in the region of the pivot pin near free end of the hook 7 is from the bolt 17 or from the entire bushing 18 a chain deflector for the chain 19 is formed. This prevents the chain 19 from blocking the opening 8.

Die Sicherungsklinke 2 ist um eine Schwenkachse, die von dem Drehbolzen 5 ausgebildet ist, herum von einer Blockierstellung über eine Sperrstellung in die dargestellte Freigabestellung hin und her schwenkbar und zwischen den Seitenplatten 12 angeordnet. Die Schwenkbarkeit ist in Figur 1a durch einen gebogenen Doppelpfeil symbolisch dargestellt. Der Drehbolzen 5 ist in einem oberen Bereich des Hakens 7 angeordnete. Die Sicherungsklinke 2 weist zwei Sperrflächen 20 auf. Diese Sperrfläche 20 dienen zum Sichern eines in der Öffnung 8 aufgenommenen Rahmenprofils 9 durch Anliegen der Sperrfläche 20 an dem Rahmenprofil 9. Je nach Stärke des Rahmenprofils 9 kommt dabei die obere, d.h. die drehbolzennähere, oder die untere, d.h. die drehbolzenfernere, der Sperrflächen 20 zum Anliegen an das jeweilige Rahmenprofil 9. Die Sicherungsklinke 2 ist im Wesentlichen aus einem Flachstahl gefertigt, an den die ebenfalls von einem Flachstahl ausgebildeten Sperrflächen 20 mit ihren Hauptebenen senkrecht zueinander befestigt sind.The safety pawl 2 is pivotable about a pivot axis formed by the pintle 5 from a blocking position to a locked position in the illustrated release position and disposed between the side plates 12. The pivoting is in FIG. 1a symbolically represented by a curved double arrow. The pivot pin 5 is arranged in an upper region of the hook 7. The safety latch 2 has two locking surfaces 20. Depending on the thickness of the frame profile 9, the upper, ie the pivot pin near, or the lower, ie the drehbolzenfernere, the blocking surfaces 20th comes in this case, to secure a received in the opening 8 frame profile 9 by abutment of the locking surface 20 to the concern to the respective frame profile 9. The safety latch 2 is essentially made of a flat steel, to which the likewise formed by a flat steel locking surfaces 20 are fixed with their main planes perpendicular to each other.

In einem von den Sperrflächen 20 entfernten Bereich der Sicherungsklinke 2 sind Befestigungsmittel 30 zum Befestigen der Kette 19 vorgesehen. Diese Befestigungsmittel 30 sind als ein Langloch in der Sicherungsklinke 2 ausgeführt, das einen Endes an den Drehbolzen 5 angrenzt. In das Langloch greift die Kette 19 mit einem ihrer Kettenglieder 31 ein, d.h. das letzte Kettenglied 31 der Kette 19 umringt das freie Ende der Sicherungsklinke 2. Der Bereich, in dem die Befestigungsmittel 30 angeordnet sind, ist derart von den Sperrflächen 20 abgewandt, dass beim Belasten der Befestigungsmittel 30 durch eine, insbesondere mit einer Komponente nach oben wirkende Zugkraft FZ mittels der Kette 19 die Sicherungsklinke 2 in die Sperrstellung gezwungen wird, also ein Drehmoment um den Drehbolzen 5 herum ausgeübt wird, mittels dessen die Sperrflächen 20 nach unten, entgegen der Zugrichtung, gedrückt werden.In a remote from the locking surfaces 20 area of the securing pawl 2 fastening means 30 are provided for attaching the chain 19. These fastening means 30 are designed as a slot in the securing pawl 2, which adjoins one end of the pivot pin 5. In the slot, the chain 19 engages with one of its chain links 31, ie the last chain link 31 of the chain 19 surrounds the free end of the safety pawl 2. The area in which the fastening means 30 are arranged, is so remote from the locking surfaces 20, that when loading the fastener 30 by a, in particular with a component upwardly acting tensile force F Z by means of the chain 19, the safety pawl 2 is forced into the blocking position, ie a torque is applied to the pivot pin 5 around, by means of which the blocking surfaces 20 down, against the pulling direction, be pressed.

An einem den Befestigungsmitteln 30 abgewandten Endbereich der Sicherungsklinke 2 ist ein Bedienfortsatz 35 zum Schwenken der Sicherungsklinke 2 von der Blockierstellung über die Sperrstellung in die Freigabestellung vorgesehen. Dieser Bedienfortsatz 35 ist zu einem im Wesentlichen senkrecht zum Drehbolzen 5 gerichteten Eingreifen durch die Bedienstange 3 eingerichtet, so dass mit der Bedienstange 3 eine entsprechend gerichtete Druckkraft FD auf den Bedienfortsatz 35 und damit die Sicherungsklinke 2 ausübbar ist. Die Bedienstange 3 kann durch eine einfache Eisenstange, z.B. aus Armierungstahl, ausgebildet sein. Um den Bedienfortsatz 35 mit der Bedienstange 3 leicht erreichen zu können, ist der Haken 7 in dem Bereich, in dem der Bedienfortsatz 35 angeordnet ist, offen ausgestaltet. D.h. in diesem Bereich sind keine Verbindungsstreben 14 zwischen den Seitenplatten 12 des Hakens 7 angeordnet.At an end region of the securing pawl 2 facing away from the fastening means 30, an operating extension 35 is provided for pivoting the securing pawl 2 from the blocking position via the blocking position into the release position. This operating extension 35 is set up to engage the operating rod 3 in a direction substantially perpendicular to the pivot pin 5, so that a correspondingly directed pressure force F D can be exerted on the operator extension 35 and thus the securing pawl 2 with the operating rod 3. The operating rod 3 can be formed by a simple iron rod, for example made of reinforcing steel. In order to easily reach the operating extension 35 with the operating rod 3, the hook 7 is designed to be open in the region in which the operating extension 35 is arranged. That is, in this area no connecting struts 14 are arranged between the side plates 12 of the hook 7.

Der Bedienfortsatz 35 weist ein Loch 36 zur Aufnahme eines freien Endes der Bedienstange 3 auf. Dieses Loch 36 ist in einer am Bedienfortsatz 35 vorgesehenen Bedienplatte 37 vorgesehen, die in einer Ebene, die parallel zum Drehbolzen 5 angeordnet ist, liegt. Wird ein freies Ende der Bedienstange 3, wie dargestellt, durch das Loch 36 durchgeführt, so stößt das freie Ende der Bedienstange 3 an einen hinter dem Loch 36 liegenden, von dem Flachstahl der Sicherungsklinge 2 ausgebildeten Bereich des Bedienfortsatzes 35 an. Durch Ausüben einer Druckkraft FD auf den Bedienfortsatz 35 mittels der Bedienstange 3, d.h. durch nach oben Drücken der Bedienstange 3, wird ein Drehmoment um den Drehbolzen 5 ausgeübt, wodurch die Sicherungsklinke 2 in ihre Freigabestellung gedrückt bzw. geschwenkt wird.The operating extension 35 has a hole 36 for receiving a free end of the operating rod 3. This hole 36 is provided in a provided on the operating extension 35 control plate 37 which is located in a plane which is parallel to the pivot pin 5. When a free end of the operating rod 3 is passed through the hole 36 as shown, it bumps the free end of the operating rod 3 to a lying behind the hole 36, formed by the flat steel of the securing blade 2 region of the operating extension 35 at. By exerting a compressive force F D on the operating extension 35 by means of the operating rod 3, ie by pushing up the operating rod 3, a torque is exerted about the pivot pin 5, whereby the securing pawl 2 is pressed or pivoted into its release position.

In den Figuren 2a und 2b ist der Versetzhaken 1 aus Figur 1a und 1b so dargestellt, dass dessen Sicherungsklinke 2 sich in der Sperrstellung befindet und ein in der Öffnung des Hakens 7 des Versetzhakens 1 aufgenommenes Rahmenprofil 9 durch Anliegen der Sperrfläche 20 an dem Rahmenprofil 9 gesichert ist. In Figur 2a ist ein Schnittbild durch den Versetzhaken 1 in einer Schnittebene senkrecht zum Drehbolzen 5 des Versetzhakens 1 gezeigt. In Figur 2b ist eine perspektivische Schrägansicht des Versetzhakens 1 gezeigt.
Da das Rahmenprofil 9 eine relativ große Stärke aufweist, liegt die obere Sperrfläche 20 am Rahmenprofil 9 zu dessen Sicherung an. Die Nase 10 am unteren freien Endes des Hakens 7 greift in eine Ausnehmung 40 im Rahmenprofil 9 ein. Um den Haken 7 von dem Rahmenprofil 9, d.h. das Rahmenprofil 9 aus der Öffnung 8 des Hakens 7 zu entfernen, muss der Haken 7 zunächst in Richtung des gezeigten gebogenen Pfeils leicht mittels der Bedienstange 3 verkippt werden. Dann wird mittels der Bedienstange 3 eine nach oben gerichtete Kraft FD ausgeübt und die Sicherungsklinke 2 in ihre Freigabestellung geschwenkt, woraufhin das Rahmenprofil 9 aus der Öffnung 8 entnehmbar ist, bzw. der Versetzhaken 1 von dem Rahmenprofil 9 abnehmbar ist.In the FIGS. 2a and 2 B is the Versetzhaken 1 off FIG. 1a and 1b shown that its safety pawl 2 is in the locked position and a received in the opening of the hook 7 of the Versetzhakens 1 frame profile 9 is secured by abutment of the locking surface 20 on the frame section 9. In FIG. 2a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to the pivot pin 5 of the Versetzhakens 1 shown. In FIG. 2b an oblique perspective view of the Versetzhakens 1 is shown.
Since the frame profile 9 has a relatively large thickness, the upper locking surface 20 rests against the frame profile 9 for securing it. The nose 10 at the lower free end of the hook 7 engages in a recess 40 in the frame section 9. In order to remove the hook 7 from the frame profile 9, ie the frame profile 9 from the opening 8 of the hook 7, the hook 7 must first be tilted slightly in the direction of the curved arrow shown by means of the operating rod 3. Then, by means of the operating rod 3, an upward force F D is exerted and the securing pawl 2 is pivoted into its release position, whereupon the frame profile 9 can be removed from the opening 8, or the transfer hook 1 can be removed from the frame profile 9.

Der Bedienfortsatz 35 ragt senkrecht zum Drehbolzen 5 im Wesentlichen nicht über die Abmessungen der Seitenplatten 12 des Hakens 7 hinaus. D.h. zumindest in der Sperrstellung überdecken die Seitenplatten 12 den Bedienfortsatz 35 senkrecht zum Drehbolzen 5 nahezu vollständig und der Bedienfortsatz 35 verbleibt innerhalb der Abmessungen der Seitenplatten 12.The operating extension 35 does not protrude perpendicularly to the pivot pin 5 substantially beyond the dimensions of the side plates 12 of the hook 7. That at least in the blocking position, the side plates 12 almost completely cover the operating extension 35 perpendicular to the pivot pin 5 and the operating extension 35 remains within the dimensions of the side plates 12.

In Figuren 3a und 3b ist der Versetzhaken 1 aus Figur 1a und 1b so dargestellt, dass dessen Sicherungsklinke 2 in der Blockierstellung die Öffnung 8 des Hakens 7 des Versetzhakens 1 derart blockiert, dass ein Aufnehmen eines Rahmenprofils in der Öffnung 8 verhindert ist. Diese Position der Sicherungsklinke 2 wird dann eingenommen, wenn kein Rahmenprofil in der Öffnung 8 des Hakens 7 angeordnet ist und eine senkrecht nach oben gerichtete Zugkraft FZ ausreichender Stärke durch die Kette19 auf die Sicherungsklinke 2 ausgeübt wird.
In Figur 3a ist ein Schnittbild durch den Versetzhaken 1 in einer Schnittebene senkrecht zum Drehbolzen 5 des Versetzhakens 1 gezeigt.
In Figur 3b ist eine perspektivische Schrägansicht des Versetzhakens 1 mit einem Blickwinkel von unten, d.h. in Eingreifrichtung der Bedienstange 3, gezeigt. In der Darstellung ist die Bedienstange 3 zum Ausüben einer Druckkraft FD, um die Sicherungsklinke 2 in ihre Freigabestellung zu schwenken, mit ihrem freien Ende in das Loch 36 des Bedienfortsatzes 35 eingeführt.In FIGS. 3a and 3b is the Versetzhaken 1 off FIG. 1a and 1b shown so that its locking pawl 2 blocked in the blocking position, the opening 8 of the hook 7 of the Versetzhakens 1 such that a receiving a frame profile in the opening 8 is prevented. This position of the securing pawl 2 is then assumed when no frame profile is arranged in the opening 8 of the hook 7 and a vertically upward pulling force F Z of sufficient strength is exerted by the chain 19 on the securing pawl 2.
In FIG. 3a is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to the pivot pin 5 of the Versetzhakens 1 shown.
In FIG. 3b is an oblique perspective view of the Versetzhakens 1 with a view from below, ie in the engagement direction of the operating rod 3, shown. In the illustration, the operating rod 3 for exerting a compressive force F D to pivot the safety pawl 2 in its release position, inserted with its free end in the hole 36 of the operating extension 35.

Figur 4 zeigt den Versetzhaken der Figuren 1a bis 3b in einer weiteren Ansicht. Die Blickrichtung dieser Ansicht ist derart senkrecht auf den Drehbolzen 5, dass die Form der parallel zum Drehbolzen 5 ausgerichteten Teile der zwischen den Seitenplatten 12 des Hakens 7 angeordneten Sicherungsklinke 2 gut erkennbar ist. Insbesondere ist die Lage der die Sperrflächen 20 ausbildenden Teile und der Bedienplatte 37 des Bedienfortsatzes 35 gut erkennbar. Im unteren Bereich der Figur ist das freie Ende einer Bedienstange 3 eingezeichnet. Die Bedienstange 3 ist derart ausgerichtet, dass sie bei einer weiteren senkrecht zum Drehbolzen 5 gerichteten Bewegung in das Loch 36 des Bedienfortsatzes 35 eingreift. FIG. 4 shows the Versetzhaken the FIGS. 1a to 3b in another view. The viewing direction of this view is so perpendicular to the pivot pin 5 that the shape of the parallel to the pivot pin 5 aligned Parts of the arranged between the side plates 12 of the hook 7 securing pawl 2 is clearly visible. In particular, the position of the blocking surfaces 20 forming parts and the control panel 37 of the operating extension 35 is clearly visible. In the lower part of the figure, the free end of an operating rod 3 is located. The operating rod 3 is aligned so that it engages in a further perpendicular to the pivot pin 5 directed movement into the hole 36 of the operating extension 35.

Bei dem dargestellten Versetzhaken 1 ist ein Federmechanismus 40 vorgesehen, der die Sicherungsklinke 2 in die Blockierstellung und/oder die Sperrstellung drückt. Dieser Federmechanismus 40 weist eine um eine Stahlfeder 42 auf, die um eine in eine der Seitenplatten 12 eingeschraubte Schraube 41 herumgeführte ist und einen Endes an der Sicherungsklinke 2 angreift und einen anderen Endes am Haken 7 arretiert ist.In the illustrated Versetzhaken 1, a spring mechanism 40 is provided which presses the safety pawl 2 in the blocking position and / or the blocking position. This spring mechanism 40 has one around a steel spring 42 which is guided around a screw 41 screwed into one of the side plates 12 and engages one end on the safety pawl 2 and another end is locked on the hook 7.

Vorgeschlagen wird ein Versetzhaken 1 zum Versetzen von Betonschalungselementen mit einem Haken 7, der eine Öffnung 8 zur Aufnahme eines Rahmenprofils 9 des Betonschalungselementes aufweist, und einer über einen Drehbolzen 5 an dem Haken 7 um eine Schwenkachse von einer Blockierstellung über eine Sperrstellung in eine Freigabestellung hin- und her- schwenkbar gelagerten Sicherungsklinke 2 mit mindestens einer Sperrfläche 20, wobei in der Blockierstellung die Sicherungsklinke 2 die Öffnung 8 derart blockiert, dass ein Aufnehmen eines Rahmenprofils 9 in der Öffnung 8 verhindert ist und in der Sperrstellung ein in der Öffnung 8 aufgenommenes Rahmenprofil 9 durch Anliegen der Sperrfläche 20 an dem Rahmenprofil 9 gesichert ist, und wobei in einem von der Sperrfläche 20 entfernten Bereich der Sicherungsklinke 2 Befestigungsmittel 30 zum Befestigen einer Kette 19 vorgesehen sind, derart, dass beim Belasten der Befestigungsmittel 30 durch eine Zugkraft mittels der Kette 19 die Sicherungsklinke 2 in die Blockierstellung und/oder die Sperrstellung gezwungen wird.
Dabei ist an einem den Befestigungsmitteln 30 abgewandten Endbereich der Sicherungsklinke 2 ein Bedienfortsatz 35 zum Schwenken der Sicherungsklinke 2 von der Blockierstellung in die Freigabestellung vorgesehen, wobei der Bedienfortsatz 35 zu einem im Wesentlichen senkrecht zum Drehbolzen 5 gerichteten Eingreifen durch eine Bedienstange 3 eingerichtet ist.Proposed is a Versetzhaken 1 for moving Betonschalungselementen with a hook 7 having an opening 8 for receiving a frame profile 9 of the concrete formwork element, and one about a pivot pin 5 on the hook 7 about a pivot axis of a blocking position via a blocking position in a release position - And pivotally mounted locking pawl 2 with at least one locking surface 20, wherein in the blocking position, the locking pawl 2, the opening 8 blocked so that a receiving a frame profile 9 in the opening 8 is prevented and in the blocking position a recorded in the opening 8 frame profile 9 is secured by concerns the blocking surface 20 on the frame profile 9, and wherein in a remote from the blocking surface 20 of the securing pawl 2 fastening means 30 are provided for attaching a chain 19, such that when loading the fastener 30 by a tensile force by means of the chain 19, the safety pawl 2 is forced into the blocking position and / or the blocking position ,
In this case, an operating extension 35 is provided for pivoting the securing pawl 2 from the blocking position into the release position on a fastening element 30 facing away from the end of the locking pawl 2, wherein the operating extension 35 is arranged to a substantially perpendicular to the pivot pin 5 intervention by an operating rod 3.

Die Erfindung beschränkt sich nicht auf die vorstehend angegebenen Ausführungsbeispiele. Vielmehr ist eine Anzahl von Varianten denkbar, welche auch bei grundsätzlich anders gearteter Ausführung von den Merkmalen der Erfindung Gebrauch machen.The invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

Claims (8)

  1. Lifting hook (1) for moving concrete formwork elements comprising a hook (7) with an opening (8) for receiving a frame profile (9) of the concrete formwork element, and a safety latch (2) which is disposed via a pivot pin (5) on the hook (7) such that it is pivotable back and forth about a pivot axis from a blocking position via a locked position into a release position and comprises at least one blocking surface (20), wherein in the blocking position, the safety latch (2) blocks the opening (8) such that reception of a frame profile (9) in the opening (8) is prevented and in the locked position, a frame profile (9) received in the opening (8) is secured in that the blocking surface (20) abuts the frame profile (9),
    characterized in that fastening means (30) are provided in an area of the safety latch (2) remote from the blocking surface (20) for fastening a chain (19) such that when the fastening means (30) are loaded by a tractive force by means of the chain (19), the safety latch (2) is forced into the blocking position and/or the locked position, wherein an operator extension (35) is provided in an end area of the safety latch (2) facing away from the fastening means (30) for pivoting the safety latch (2) from the blocking position into the release position, wherein the operator extension (35) is designed for engagement by an operating rod (3) in a direction substantially perpendicular to the pivot pin (5).
  2. Lifting hook according to claim 2, characterized in that the operator extension (35) has a hole (36) for receiving a free end of the operating rod (3), preferably wherein the hole (36) is provided in a control panel (37) provided on the operator extension (35).
  3. Lifting hook according to any one of the claims 1 to 2, characterized in that the hook (7) has two side plates (12) that are arranged parallel with respect to one another, wherein the side plates (12) are connected to each other by the pivot pin (5) and at least one cross member (14) and wherein the safety latch (2) is arranged between the side plates (12).
  4. Lifting hook according to claim 3, characterized in that the side plates (12) preferably completely cover the operator extension (35) at least in the locked position.
  5. Lifting hook according to any one of the claims 1 through 4, characterized in that a spring mechanism (40) is provided, wherein the spring mechanism (40) forces the safety latch (2) into the blocking position and/or the locked position.
  6. Lifting hook according to any one of the claims 1 to 5, characterized in that the safety latch (2) has two blocking surfaces (20).
  7. Lifting hook according to any one of the claims 1 to 6, characterized in that a feed-through (18) is formed in the area of a free end of the hook (7) close to the pivot pin for a chain (19) provided to be fastened to the fastening means (30) of the safety latch (2).
  8. Lifting hook according to claim 7 and claim 3, characterized in that the feed-through (18) is limited at the free end close to the pivot pin by a bolt (17) that connects the side plates (12).
EP10722915.5A 2009-04-30 2010-02-23 Lifting hook Active EP2424810B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009002765A DE102009002765A1 (en) 2009-04-30 2009-04-30 Versetzhaken
PCT/DE2010/000201 WO2010124666A1 (en) 2009-04-30 2010-02-23 Lifting hook

Publications (2)

Publication Number Publication Date
EP2424810A1 EP2424810A1 (en) 2012-03-07
EP2424810B1 true EP2424810B1 (en) 2015-07-29

Family

ID=42289140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722915.5A Active EP2424810B1 (en) 2009-04-30 2010-02-23 Lifting hook

Country Status (4)

Country Link
EP (1) EP2424810B1 (en)
DE (1) DE102009002765A1 (en)
HK (1) HK1162443A1 (en)
WO (1) WO2010124666A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016205836A1 (en) 2016-04-07 2017-10-12 Hünnebeck GmbH Hook for moving formwork elements
EP4183731A1 (en) * 2021-11-23 2023-05-24 ULMA C y E, S. COOP. Lifting hook

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1429798A (en) * 1965-03-29 1966-02-25 Safety device for lifting hooks
DE3111634C2 (en) 1981-03-25 1983-03-24 Peri-Werk Artur Schwörer GmbH & Co KG, 7912 Weißenhorn Crane hook
DE3623314A1 (en) * 1986-07-11 1988-01-21 Huennebeck Gmbh Hook for the attachment of shuttering panels

Also Published As

Publication number Publication date
DE102009002765A1 (en) 2010-11-04
EP2424810A1 (en) 2012-03-07
HK1162443A1 (en) 2012-08-31
WO2010124666A1 (en) 2010-11-04

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