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 in such a way 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 to the frame profile by abutment of the blocking surface.
• Such a transfer hook is disclosed in DE 31 11 634 Al.
• 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 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 fixed by means of an operating rod, such as a reinforcing iron rod, e.g. be operated from below, wherein the pawl of the blocking position, or the
• Blocking position can be pivoted into 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 by means of
• 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 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.
• a spring mechanism is provided, wherein the spring mechanism presses 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.
• Figures Ia and Ib show a Versetzhaken invention, wherein the securing pawl is pivoted by means of an operating rod in its release position.
• Figures 2a and 2b 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.
• Figures 3a and 3b show the Versetzhaken 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.
• Figure 4 shows the Versetzhaken of Figures 1 to 3 in a further view.
• FIG. Ia and Ib an inventive Versetzhaken 1 is shown, wherein the securing pawl 2 is pivoted by means of an operating rod 3 in its release position.
• Figure Ia is a sectional view through the Versetzhaken 1 in a sectional plane perpendicular to Pivot 5 of the Versetzhakens 1 shown.
• Figure Ib a perspective oblique 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 shown symbolically in FIG. 1a 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. These blocking surfaces 20 serve to secure a frame profile 9 accommodated in the opening 8 by abutment of the blocking surface 20 on the frame profile 9.
• the upper, i. the hinge pin closer, or the lower, i. the navbolzenfernere the locking surfaces 20 for abutment against the respective frame profile 9. Die
• Safety latch 2 is essentially made of a flat steel, to which the lock surfaces 20, which are likewise formed by a flat steel, are fastened with their main planes perpendicular to one another.
• 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 links 31, i. the last chain link 31 of the chain 19 surrounds the free end of the
• the region in which the fastening means 30 are arranged is so remote from the blocking surface 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 be directed substantially perpendicular to the pivot pin 5 by the intervention intervention 3, so that with the operating rod 3 a correspondingly directed pressure force F 0 on the control extension 35 and thus the safety latch 2 is exercisable.
• 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 pressure force F 0 on the control extension 35 by means of the operating rod 3, that is, by upwardly pressing the operating rod 3, a torque about the pivot pin 5 is applied, whereby the securing pawl 2 is pushed into its release position or pivoted.
• FIGS. 2 a and 2 b the offset hook 1 from FIGS. 1 a and 1 b is shown such that its securing pawl 2 is in the blocking position and a frame profile 9 accommodated in the opening of the hook 7 of the displacing hook 1 is applied to the frame profile 9 by abutment of the blocking surface 20 is secured.
• FIG. 2 a shows a sectional view through the offset hook 1 in a sectional plane perpendicular to the pivot pin 5 of the offset hook 1.
• FIG. 2b shows a perspective oblique view of the offset hook 1.
• 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 upward force F D exerted and the securing pawl 2 is pivoted into their release position, whereupon the frame section 9 is removed from the opening 8, or the Versetzhaken 1 is detachable from the frame profile.
• 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 is, at least in the blocking position, the side plates 12 cover the operating extension 35 perpendicular to the pivot pin 5 almost completely and the operating extension 35 remains within the dimensions of the side plates 12.
• FIGS. 3 a and 3 b the offset hook 1 from FIGS. 1 a and 1 b is shown in such a manner that its locking pawl 2 blocks the opening 8 of the hook 7 of the offset hook 1 in the blocking position in such a way that a reception of 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 tensile force F z of sufficient strength is exerted by the Kettel9 on the securing pawl 2.
• FIG. 3 a shows a sectional view through the offset hook 1 in a sectional plane perpendicular to the pivot pin 5 of the offset hook 1.
• Figure 3b is a perspective oblique 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 0 to pivot the safety pawl 2 in its release position, with its free end inserted into the hole 36 of the operating extension 35.
• Figure 4 shows the Versetzhaken of Figures Ia to 3b in a further 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 Sich ceremoniesskrieinke 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 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.
• 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)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42289140

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (1)

Citations (2)

Family Cites Families (1)

• 2009
  • 2009-04-30 DE DE102009002765A patent/DE102009002765A1/de not_active Withdrawn
• 2010
  • 2010-02-23 WO PCT/DE2010/000201 patent/WO2010124666A1/de active Application Filing
  • 2010-02-23 EP EP10722915.5A patent/EP2424810B1/de active Active
• 2012
  • 2012-03-30 HK HK12103188.2A patent/HK1162443A1/zh unknown

Patent Citations (2)

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