EP3150779B1 - Assembly of formwork and graduated anchoring system - Google Patents

Description

The invention relates to a method for mounting a wall formwork and a system produced by the method.

An anchor system in the context of the present invention is used in formwork technology in the concreting of reinforced concrete structures in order to mount wall formworks. A wall formwork includes a formwork on the front and on the back of the formwork supporting elements such as side members, crossbar and frame. In the erected condition of a wall formwork, a side member extending in the vertical direction and a cross bar in the horizontal direction.

The two sides of a wall to be concreted are bounded by wall formwork. The front of each wall formwork then adjoins the concrete with its formwork. Opposing wall formworks are usually held by a plurality of anchor systems. The anchor rods are inserted through openings in the wall formworks and attached at their ends to the respective formwork skin supporting elements by means of locking devices so that at least the force acting on the anchor rods during concreting tensile force is absorbed. These openings passing through the wall formwork are also called anchor rod bores.

In formwork technology, a distinction is made between an adjustment formwork and a closing formwork. An adjustment formwork is a wall formwork, which is set up first. Following this, the closing formwork opposite the formwork is set up. Adjusting formwork and closing formwork are connected to one another during assembly by one or more anchor systems. Concrete is poured into the space between the shuttering and shuttering. By curing the concrete creates a wall.

Usually, one or the two ends of an anchor rod on a thread on which nuts are screwed as Ankerfixierungen. The middle region of such an anchor rod, to which concrete can adjoin during concreting, advantageously either has a smooth surface or is at least during the Concreting enveloped by a sleeve with a smooth surface. Otherwise, a thread of an anchor rod would be embedded in concrete. The anchor rod can then no longer be easily pulled out of the hardened concrete.

The maximum effective length of the anchor rod and thus the thickness (thickness) of the wall to be concreted is therefore regularly determined by the length of the central anchor rod region with a smooth surface. At the same time, the pressure exerted on the formwork by the liquid concrete during concreting is dissipated via the nuts on the tie rods. The tie rods are loaded on train.

Spacers may be placed between the shell skins in the volume of the wall to be concreted, which can absorb the compressive forces created during concreting, thereby ensuring that these compressive forces do not undesirably affect the wall thickness, i. Reduce. Alternatively or additionally, the locking devices can be attached to the wall formwork, so that they are able to absorb pressure forces.

If the concrete cast between two wall formworks cured, the anchor rod is released from a locking device and pulled out of the concrete wall. If necessary, the upper side of a closing formwork is previously hung, for example, on a hook of a crane, so that it does not fall over once all tie rods have been pulled out. For example, with the help of the crane, the wall formworks are finally suitably displaced to produce a next wall or a next wall section. If the wall formwork has been moved, then the anchor systems are mounted or attached to the wall formwork again.

From the publication WO 2008/089737 A1 is an anchor system with two locking devices and an anchor rod for a wall formwork with a first and a second formwork element known. The anchor rod has at its two ends in each case a thread, which are screwed into the screw nut elements of the locking devices. Each locking device comprises a dome plate, which is fastened by means of fastening means to a rear side of a wall formwork. The anchor system can therefore absorb both tensile and compressive forces of a wall formwork.

The abovementioned features known from the prior art can be combined individually or in any desired combination with the object according to the invention described below, unless stated otherwise below.

The publication DE 10 2010 002 108 A1 discloses a system having a first and a second formwork element and an anchor system. The anchor system comprises an anchor rod and two locking devices. The two formwork elements are placed opposite each other. An anchor rod with split pin holes at one end and threads at both ends is pushed through anchor rod bores of the two wall formworks. The end without pinholes is connected to a locking device at a predetermined position by a stop by screwing. The end of the anchor rod with the grid is connected to the locking device provided here so that this connection is aligned with the selected grid. Kalottenplatten the two locking devices are attached to the back of each adjacent formwork element by a fastening means.

The publication US 3,327,988 discloses a system with opposing shuttering elements supported by armature systems with anchors and two locking devices. The ends of the anchor rods have circumferential grooves, engage in the tongues of the locking devices.

The publication US 2,048,151 discloses a system with opposing shuttering elements supported by armature systems with anchors and two locking devices. The length of the tie rods can be adjusted. To do this, there is a section with a rod pushed into a tube. A selected position can be fixed with grooves and a rod.

It is an object of the invention to simplify the installation of a wall formwork and to provide an anchor system.

The object of the invention is achieved by a method having the features of the first claim and by a system having the features of the independent claim. Advantageous embodiments emerge from the subclaims.

To simplify and accelerate assembly, the anchor rod of an anchor system at the end, which is not pulled out by wall formwork for disassembly or vice versa for mounting in anchor rod holes is inserted, a grid for the production of different thickness walls. By mounting armature systems with grid size, it is easy and accurate to set a wall thickness in accordance with the grid. The provision of a grid in an anchor system can accelerate assembly and simplify.

It is the anchor rod first pushed through anchor rod holes of closing and setting formwork and the pushed-through end connected to a locking device and screwed. This locking device is fixedly mounted on the back of the corresponding wall formwork, so for example screwed to a side rail of this wall formwork. Preferably, this wall formwork is a setting formwork, so as to be able to assemble particularly quickly. The anchor rod is connected at a predetermined position with the locking device, such as bolted. To locate the given position quickly and easily, there is a stop. If the pushed-through end of the anchor rod reaches the stop, the predetermined position has been reached. The stop prevents further screwing in. The anchor rod is thus screwed in the maximum possible way in the thread of the locking device.

Following this, the not inserted end of the anchor rod is connected to the locking device provided here on the opposite side so that this connection is aligned with the selected grid. It is so particularly quickly and easily set the desired distance between the two formwork. The wall of the desired thickness can be cast as soon as both locking devices contact the respective rear wall, namely the rear wall of a supporting element. If the locking devices are firmly mounted on the respective wall formwork, then they contact the back of the respective wall formwork.

For aligning to a grid an actuator is provided, which is positioned according to grid. The actuator is a sleeve through which the anchor rod is inserted.

The actuator is in a position according to grid, so the actuator is fixed for example by means of a splint, a screw or a bolt. The pin or split pin is inserted, for example, for fixing through a hole of the actuator and the hole in the anchor rod so that thereby the actuator can not be released from its position. The actuator may include a thread to fix the actuator by means of a screw.

The actuator is in a position according to grid, the actuator is directly or indirectly connected to the back of the adjacent wall formwork. The wall formwork is thus moved to the position required to make a wall of desired wall thickness.

To connect the actuator to the back of a wall formwork, for example, one or more screws may be provided which pass through suitably arranged holes in the actuator and are screwed into designated threads on the back of the adjacent formwork.

The part of an anchor system, which is pulled out for dismantling a wall formwork, comprises a part of the locking device in addition to the anchor rod. For assembly, the anchor rod is inserted into anchor rod holes of closing and setting formwork. If previously a part of the aforementioned locking device has not been released from the anchor rod, so the corresponding part thereof is connected to the anchor rod when the anchor rod is inserted for the purpose of assembly by said anchor rod holes. This part of the locking device, which is not released by the anchor rod during assembly and disassembly, includes the actuator. Assembly and disassembly can be carried out very quickly. Not claim is that the part of an anchor system that is pulled out for disassembly of a wall formwork, next to the anchor rod comprises a locking device, not just a part of it.

Each locking device is in the assembled state at the back of a wall formwork for receiving forces. The locking device, which is connected to the inserted end of the anchor rod, is preferably attached to the back of a setting formwork. The other locking device, which is partially solved together with the anchor rod for disassembly of the wall formworks, is preferably provided on the back of a closing formwork to optimize disassembly. Each locking device is attached to the back of a wall formwork, such as by means of a screw, so that the anchor system is able to absorb both compressive forces and tensile forces. Each locking device is detachably connected to the anchor rod and in particular by means of a screw connection in order to optimize effective lengths of the anchor rod can.

A locking device, preferably each locking device, may be mounted in different positions on either end of the anchor rod, such as by screws, to optimize effective lengths of the anchor rod. Each locking device has a fastening device for fastening the locking device to a wall formwork. The fastening device comprises in particular a screw with which a locking device can be screwed to a supporting element of a wall formwork.

In principle, at least one, preferably both locking devices comprise an at least partially planar, in particular provided by a dome plate underside, which rests flat in the assembled state of the wall formwork or on a supporting element of the wall formwork. The dome plate is preferably movably connected to a thread, which can be bolted to an anchor rod end. The thread may preferably be moved in a manner similar to the calotte plate.

In one embodiment of the invention, the thread of the locking device is non-rotatably mounted on the dome plate. By this embodiment it is achieved that an inserted into wall formworks end of an anchor rod can be screwed into the thread without the thread rotates undesirable. It concerns the locking device, which is pre-mounted on the back of a wall formwork, in particular the setting formwork, d. H. to be fastened in order subsequently to screw a closing and setting formwork inserted end of an anchor rod with this locking device.

A supporting element of a wall formwork basically consists of a metallic hollow profile, in particular a profile with a rectangular, square cross-section or hat-shaped cross-section. Walls of such a profile are with one or more Ankerstabbohrungen provided for a passing through an anchor rod, which also passes through the formwork skin of the wall formwork.

Preferably, the locking device is attached to a supporting element, which extends vertically in the erected state, so as to be able to anchor in particular at a particularly suitable location along the entire height of a setting formwork.

A locking device is attached to the beginning of a mounting on the back of a setting formwork, as this maximizes the speed of assembly. After setting up the shuttering, a mechanic is on the side of the shuttering. He can then install anchor rods immediately.

The one end of the anchor rod has a plurality of grooves that form the grid. On this end, an adjusting nut is screwed in one embodiment. The adjusting nut holds a lock nut, in particular by a flange. By holding it is achieved that the lock nut can finally be screwed onto a thread that the formwork, which is connected to this thread, is moved to the desired position. Another stop is pushed into one of the grooves or holes or attached to the fact that the further stop can not be moved along the longitudinal axis of the armature. The adjusting nut is moved by screws in the direction of the other stop until it reaches the other stop and fixed. The fixing can be achieved by friction or adhesion. However, the fixing is preferably carried out alternatively or additionally by positive locking. By fixing it is achieved that the further stop can not fall out of its position. By reaching and fixing the further stop is further achieved that easily and reliably the desired position is found, which can be achieved for the production of a desired wall thickness. Subsequently, the lock nut is screwed onto a thread, which is connected to the back of the adjacent formwork. This formwork is moved to the desired position in order to produce a wall with the desired wall thickness can.

In this embodiment, the lock nut and adjusting nut are in particular between the further stop and the formwork adjacent thereto.

In order to fix the further stop by positive locking, the stop preferably has a recess into which the adjusting nut can be moved with a section by means of screws. If this section of the adjusting nut is in the recess of the further stop, the further stop can no longer be released from the groove or bore. Alternatively, however, the adjusting nut may also have a recess into which a part of the further stopper arrives so as to fix it. However, this design is structurally a little more complex.

An anchor system suitable for carrying out the method comprises an anchor rod and two locking devices. One end of the anchor rod comprises a grid formed by grooves. For this end of the anchor rod another stop, an adjusting nut and in particular a lock nut is provided. The anchor system further comprises in particular a thread on which the lock nut can be screwed. The thread can be attached directly or indirectly to the back of a formwork. The thread is preferably connected to a dome plate. The dome plate is then preferably such and arranged that it can be attached to the back of a formwork, and in particular on a metal carrier or bolt of the formwork. The anchor system includes for each end of the anchor rod a locking device that can be released from the anchor rod.

In one embodiment, the locking device, which is connected to the end of the anchor rod, a sleeve or bore through which the anchor rod for assembly can be pushed through without having to screw. The anchor rod can be pushed so particularly fast with its designated end through the two wall formworks for the purpose of assembly.

In one embodiment, the sleeve comprises an external thread, which is screwed with a lock nut, in order to connect the end of the anchor rod not inserted through wall formworks with the sleeve. The sleeve is in turn indirectly or directly preferably connected to the back of the corresponding wall formwork. Preferably, the sleeve is connected to a dome plate so that the sleeve can be moved relative to the dome plate as a joystick so as to align the sleeve for easy guidance of the anchor rod can. The dome plate is then preferably at the back of the corresponding wall formwork, and usually at the back attached a closing formwork, preferably by means of a screw, so as to mount so fast, easy and reliable.

A locking device comprises an actuator, preferably an adjusting nut, which is screwed onto the not inserted end of the anchor rod. The actuator is adjusted according to grid size, preferably by screwing the adjusting nut to the intended grid. There is another stop that can be positioned according to the grid size. In the direction of the further stop then the adjusting nut is screwed until the further stop prevents further screws. The anchor rod is then inserted through closing formwork and shuttering and connected to the locking device on the corresponding rear wall formwork. The rear wall formwork is basically the setting formwork. Now, the lock nut suitably connected counter nut is screwed onto the external thread of the sleeve, and preferably in the maximum possible way. As a result, the corresponding wall formwork, which is preferably a closing formwork, is now aligned exactly.

Preferably, the lock nut has wings in order to screw the lock nut at least initially quickly. If necessary, the lock nut is finally screwed by means of tools.

As a grid measure grooves in the anchor rod. It can then be positioned quickly and reliably according to grid another stop by extending in the aligned state, a wall portion of the further stop in a corresponding groove. The further stop is then held in its intended position so that it is able to serve as a stop for the actuator.

The further stop preferably has an opening with a region which allows rapid displacement along the anchor rod until a desired grid dimension position is reached. Preferably, there is a further region which tapers towards one end so as to be able to stably hook the further stop into a groove or groove of the grid dimension.

So that the actuator or adjusting nut and lock nut can be connected to each other in a particularly suitable manner, both components include flanges, the mutually as Serve stop. When the lock nut is screwed onto the externally threaded sleeve, the flange of the lock nut is moved against the actuator's flange. Finally, when the two flanges come into contact with each other, further tightening of the counter nut will cause alignment of the associated wall formwork.

The grid has, in one embodiment, indicia that represent the thickness of walls. The markings are in particular in the form of numbers that correspond to the assigned wall thicknesses or thicknesses. For example, in one embodiment, grooves of pitch are provided with such markings.

In one embodiment, the further stop has a recess into which a part of the adjusting nut can be moved in as part of an assembly. By moving in the other stop is prevented by positive engagement and thus particularly reliable to be released from its position.

For stability reasons, the anchor system is basically made of metal or at least predominantly of metal.

• nach dem Verbinden des hindurchgeschobenen Endes des Ankerstabs mit der auf der Rückseite der einen Schalung vorhandenen Arretiervorrichtung das nicht hindurch geschobene Ende des Ankerstabs eine Mehrzahl von Nuten aufweist, die das Rastermaß bilden, wobei auf dieses Ende mit dem Rastermaß eine Stellmutter aufgeschraubt ist oder wird, wobei die Stellmutter eine Kontermutter hält und zwar insbesondere durch einen Flansch,
• ein weiterer Anschlag so in eine der Nuten hineingeschoben oder an einer der Nuten (21) angebracht oder angeordnet wird, dass der weitere Anschlag nicht entlang der Längsachse des Ankerstabs verschoben werden kann,
• die Stellmutter durch Schrauben in Richtung des weiteren Anschlags bewegt wird, bis diese den weiteren Anschlag erreicht und insbesondere fixiert,
• im Anschluss daran die Kontermutter auf ein Gewinde aufgeschraubt wird, welches mit der Rückseite der angrenzenden Schalung verbunden ist.

In one embodiment, said method may further comprise

• after connecting the pushed-pushed end of the anchor rod with the existing on the back of a formwork locking the non-pushed end of the anchor rod has a plurality of grooves which form the grid, with an adjusting nut is screwed or screwed onto this end with the grid dimension, the adjusting nut holding a lock nut, in particular by a flange,
• another stop is pushed into one of the grooves or attached to one of the grooves (21) or arranged such that the further stop can not be displaced along the longitudinal axis of the anchor rod,
• the adjusting nut is moved by screws in the direction of the further stop until it reaches the further stop and in particular fixed,
• then the lock nut is screwed onto a thread, which is connected to the back of the adjacent formwork.

Said method may also comprise, in another embodiment, that during the passage of the anchor rod at the end with the grid dimension, the actuator, a lock nut (14) and the further stop is connected to the anchor rod.

The said method can also comprise, in a further embodiment, that a wing nut is screwed onto the end with the grid dimension while the anchor rod passes through.

In a further embodiment, the said method may also comprise, in each case, a dome plate of a locking device being fastened to the two wall formworks on both back sides of the anchor rods.

In a further embodiment, said armature system can furthermore comprise that the armature system comprises a split pin, with the split pin the actuator can be positioned in accordance with the spacing.

In a further embodiment, said armature system can also include that it comprises a lock nut, the actuator and a threaded sleeve.

The said anchor system can also comprise in a further embodiment that the pull-out part of the anchor system comprises an anchor rod, a split pin, a lock nut, and / or a wing nut.

The said anchor system may further comprise, in a further embodiment, the anchor system comprising a further stop having a first and a second passage, wherein the one passage has a smaller diameter than the other passage, wherein the two passages are interconnected so that Anchor rod between the two passages can be moved back and forth, with a recess which is disposed adjacent to the two passages, in such a way that a screwed onto the anchor rod adjusting nut for a positive fixing of the other stop can be screwed into the recess ,

Hereinafter, advantageous embodiments of the invention will be explained in more detail with reference to figures.

In the FIG. 1 Sectionally, the back of a closing formwork with a side member 1 and cross bar 2 is shown, which are attached to the back of a formwork skin 3. The FIG. 1 does not show all the features of the claimed invention. An anchor rod 4 is pushed into an anchor rod bore and fastened to the side member 1 with a locking device. The locking device comprises a dome plate 5 to which a sleeve 6 is externally threaded so that the sleeve 6 can be moved relative to the dome plate 5 joystick-like, so as to be able to align the sleeve 6 for the anchor rod 4, if necessary suitable. With a screw 7, the dome plate 5 is bolted to the longitudinal bar 1. At the end of the anchor rod 4, a two-wing nut 8 is screwed. The position of the two-blade nut 8 is fixed by a grooved pin 9, which leads laterally from a bore of the nut 8 in the anchor rod 4 and is held by force fit by means of press fit. The two-wing nut simplifies the screwing of the inserted end of the anchor rod in a thread of a locking device, which is provided on the side of the setting formwork.

With the anchor rod 4, a suspension 10 is connected, which is arranged adjacent to the two-wing nut 8. The two hook-shaped ends 11 of the suspension 10 can be threaded into upper holes 12 in cross bars, so as to connect the tie rod together with in the FIG. 1 visible locking device together with two-leaf nut 8 to hang after disassembly and especially while handy next to the anchor rod hole through which the anchor rod 4 is passed.

The locking device comprises an adjusting nut 13, a z. B. dreiflügelige lock nut 14 with internal thread, which can be screwed onto the external thread of the sleeve 6. With a splint 15, the position of the adjusting nut can be fixed at a suitable location on the anchor rod. The anchor rod comprises a plurality of holes through which the split pin 15 can be inserted therethrough. The holes form a grid to align wall formworks for typical wall thicknesses easily and quickly.

If the adjusting nut is fixed by a split pin 15, then the lock nut 14 is screwed onto the thread of the sleeve 6 in the maximum possible manner. Thereby, the formwork 1, 2, 3 is moved to the position that is required to produce the desired wall with the desired wall thickness.

In the Figures 2 . 3 and 4 a particularly preferred embodiment is shown.

With the help of a perpendicular projecting from the anchor rod end wing 16 a previously extracted from the wall formwork part of an anchor system can be mounted in a hole 12 of a cross bar 2, as the Figures 2 and 3 clarify. Such a projecting wing 16 is preferably part of the two-winged wing nut 8, which has been screwed onto the end of the thread 17 of the anchor rod 4. Each wing 16 has a suspension with a first downwardly projecting portion 18 of circular diameter. At the lower end of the downwardly projecting portion 18 of the suspension there is a plate-shaped, flat portion 19 of the suspension, which projects laterally from the wing 16 and perpendicularly from the area 18 with the circular diameter. Such a suspension with the area 18 and the portion 19 may as well as the Figures 2 and 3 make clear in a hole 12 in a reachable from above the side wall of a horizontally extending cross member 2, so as to mount the corresponding part of the anchor system on the back of a shutter at the desired position reliably and stably. The region 18 with the circular cross section is adapted to the cross section of a hole 12 and fills it in the suspended state to more than 50%. The underside of each wing 16 is flat so that it is flat as in FIG. 3 shown can rest on a side wall of a cross bar 2. The distance between the anchor rod 4 with the thread 17 and the suspension with the area 18 corresponds to the distance of a hole 12 to the back 20 of the cross bar 2, so that an anchor rod 4 with the thread 17 in the suspended state adjacent to the cross bar 2 which stabilizes the position of the hinged tie rod 4. Overall, the part of the anchor system that is hung in a stable position held on the back of a shutter. Pivoting movements relative to the shuttering are minimized so advantageous.

The wings of the wing nut 8 can be used to manually twist an anchor rod at least initially. Increases the required force too much, so the head of the wing nut 8 can be rotated using tools.

The thread 17 of the anchor rod 4 is interrupted at regular intervals by a circumferential groove to hang here another stop 28 can.

The Figures 2 and 3 show a hole 22 in the nut 8, in which a grooved pin 9 is beaten. In the FIG. 4 is a hole 23 in the anchor rod 4 shown in the the notched grooved pin 9 passes for fixation. The Indian FIG. 4 anchor rod 4 shown in detail comprises a smooth central region 24, which may enter into the concrete of a concrete wall to be produced. The adjacent to the thread 21 end 25 of the anchor rod is advantageously designed as a polygon to this supplementally using tools, such as a wrench to turn if necessary can.

The adjusting nut 13 comprises at one end a circumferentially protruding flange 26 which serves as a stop for an inwardly directed flange 27 (see FIG. 1 ) serves. The adjusting nut 13 comprises an internal thread, which can be screwed onto the thread 17 of the anchor rod 4. A further stop 28 has a recess with a round region 29 and an associated further elongate, tapering towards the end further region 30. The thread 17 can be threaded into the round area. The elongated area can be hung in grooves 21. The grooves 21 form a grid in order to make the alignment of wall formworks for typical wall thicknesses quickly and easily. The further stop 28 is then secured against displacement along the anchor rod 4. The adjusting nut 13 preferably also includes a polygonal trained area to screw the adjusting nut using tools can.

The FIG. 4 shows the components of an anchor system, which are pulled out and hung for disassembly. It is then regularly advantageous not necessary to solve connections between Kalottenplatten and wall formworks.

The FIG. 5 shows a section of an adjusting formwork 40 with a locking device 41 attached thereto. The positioning formwork 40 has a formwork skin 42 on the front side. The locking device 41 is secured to a longitudinal member 43 by means of a screw 44 and a bolt 45 which engage in holes in the side member suitable. The screw 44 is inclined so that no thread in the corresponding hole of the longitudinal member 43 is required to secure the locking device 41 to the longitudinal member 43. The locking device 41 is suitably arranged for connection to an anchor rod above an anchor rod bore 46, through which the end 48 of an anchor rod 4 is inserted for assembly. After the end 48 of an anchor rod 4 has been inserted through the bore 46, this end 48 is then connected to the locking device 41 and indeed screwed in the rule.

The locking device has a region 47 through which a bore perpendicular or at least substantially perpendicular passes through and therefore in the Figures 5 and 6 is not visible.

The FIG. 6 illustrates that a hole in the corresponding locking device 41 is sufficient to realize the advantage that for mounting the anchor system with the anchor rod 4 can be kept ready to hand at a particularly suitable location without having to operate a large technical effort. The hole in the area 47 not only allows attaching the pull-out portion 4, 27 of the anchor system on this locking device 41 and thus also on the back of the formwork 40, when this locking device 41 as in the Figures 5 and 6 shown attached to the back of a longitudinal member 43. Moreover, it is also possible to attach the pull-out part 4, 27 of the anchor system so that this as in the FIG. 6 shown is kept stable.

The bore is arranged and arranged so that the anchor rod 4 in the erected state shown the setting formwork 40 is substantially perpendicular when the tie rod 4 as in the FIG. 6 has been inserted into the hole and the locking device 41 is attached to the back of the shuttering 40.

The bore is also such that the end 48 of the anchor rod 4, which has been inserted through the bore, for example, in the context of disassembly, on a cross bar 49 of the wall formwork 40 touches. The end 48, which has been inserted, is not opposite the back of the wall formwork 40 as shown.

The bore is such that the anchor rod 4 forms an acute angle with the back of the wall formwork 40 as shown when the tie rod 4 has been attached to the locking device 41. The part of the anchor system, which must be detected for pulling out the pull-out part 4, 27 of the anchor system, is then particularly easy to reach.

The FIG. 7 shows a particularly preferred embodiment of another stop 28. In accordance with the further stop 28, which in the FIG. 4 is shown points this a recess or passage with a region 29. Connected thereto is a region 30 leading through the further stop 28, which has a smaller diameter than the region 29. The region 30 can be hooked into a groove 21 of an anchor rod such that the further stop 28 can no longer be displaced along the anchor rod , The diameter of the region 30 is selected so that the anchor rod can be inserted therethrough. Will now be in the FIG. 4 shown adjusting nut 13 moves in the direction of the further stop 28, so finally reaches the part of the adjusting nut 13 which protrudes from the flange 26, into the recess 60 into it. The recess 60 adjoins the two recesses or passages 29 and 30 in such a way that the further stop 28 can not be released from the anchor rod when the aforementioned part of the adjusting nut 13 has been screwed into the recess 60. The further stop 28 is then fixed by positive locking.

The FIG. 7 illustrates that the passage 29 with the larger diameter adjacent to the edge of the recess 60. The passage 30 with the smaller diameter is not adjacent to the edge of the recess 60. This allows the desired fixation. In general, the passage 29 with the larger diameter approaches closer to the edge of the recess 60 than the passage 30 with the smaller diameter in order to enable the positive fixing in a technically simple manner.

Will the in the FIG. 8 shown adjusting nut 13 screwed into the recess 60 of the further stop 28 as shown, the further stop 28 is fixed. The further stop 28 can then no longer be released from the position shown. The region of the adjusting nut 13, which protrudes from the flange 26, is preferably designed as a polygon. If the adjusting nut has been moved into the recess 60 in a maximally possible manner, a region designed as a polygonal stop preferably remains between the stop 28 and the lock nut 14, which can be reached by a tool in order to be able to screw the adjusting nut 13 with the aid of tools.

Claims (9)

1. Method for assembling a system comprising a first and a second wall formwork (1, 2, 3, 40) and an anchor system, comprising the steps:

   the two wall formworks (1, 2, 3, 40) are set up opposite one another,

   an anchor rod (4) having a grid spacing (21) at a first end and a thread at the other second end is pushed through anchor rod bores of the two wall formworks (1, 2, 3, 40) in such a way that the first end of the anchor rod (4) not pushed through the anchor rod bores has the grid spacing (21),

   the second end with the thread (48) of the anchor rod (4) pushed through the anchor rod bores is connected by screwing, at a position predetermined by a stop, to a locking device (41), which is present on the rear side of the second wall formwork (40) and is fixedly mounted, namely fixed on the rear side to a supporting element (43) of said second wall formwork (40) with a fastening device (44), the predetermined position of the anchor rod (4) being reached when the second end of the anchor rod (4) pushed through reaches the stop, this stop preventing the anchor rod (4) from being screwed in further,

   the first end with the grid spacing (21) of the anchor rod (4), which is not pushed through the anchor rod bores, is connected to a locking device (5, 6, 7, 8, 13, 14, 15) provided here in such a way that this connection is aligned with the selected grid spacing (21),

   the locking device (5, 6, 7, 8, 13, 14, 15) aligned with the grid spacing is connected to the adjacent first wall formwork (1, 2, 3), namely fixed to a supporting element (1) of the first wall formwork (1, 2, 3) by means of a fastening device,

   wherein

   a part of the locking device (5, 6, 7, 8, 13, 14, 15) aligned with the grid spacing is connected to the anchor rod (4) when the anchor rod (4) is pushed through the anchor rod bores and said part comprises a control element (13),

   wherein the control element (13) is part of the locking device (5, 6, 7, 8, 13, 14, 15) aligned with the grid spacing (21), the control element (13) being positioned in accordance with the grid spacing by a further stop (28), the control element (13) being a sleeve through which the anchor rod (4) is inserted,

   characterized in that

   the grid spacing (21) is formed by a plurality of grooves,

   wherein a wall region of the further stop (28) extends into a corresponding groove (21) and the further stop (28) is held in its intended position such that it serves as a stop for the control element (13).
2. Method according to claim 1, characterized in that the further stop (28) has an opening with a region which permits displacement along the anchor rod (4) until a desired grid spacing position is reached.
3. Method according to one of the two preceding claims, characterized in that the further stop (28) has a region which is tapered towards one end so as to be able to hang the further stop (28) stably into a groove (21) of the grid spacing.
4. Method according to claim 1, characterized in that the control element (13) is indirectly connected to the rear side of the adjacent first wall formwork (1, 2, 3).
5. Method according to the preceding claim, characterized in that the locking device (5, 6, 7, 8, 13, 14, 15) comprising the control element (13) comprises a flat underside which, in the assembled state, rests flat against a supporting element (1, 2) of the first wall formwork (1, 2, 3).
6. System, manufactured by a process having the features of claim 1, comprising a first and a second wall formwork (1, 2, 3, 40) and an anchor system,
   the two wall formworks (1, 2, 3, 40) are set up opposite each other,
   an anchor rod (4) with grid spacing (21) at a first end and with a thread at the other second end is pushed through anchor rod bores of the two wall formworks (1, 2, 3, 40),
   the second end with the thread (48) of the anchor rod (4) pushed through the anchor rod bores is connected by screwing to a locking device (41) at a position predetermined by a stop, the locking device (41) being present and fixedly mounted on the rear side of the second wall formwork (40), namely fixed on the rear side to a supporting element (43) of this second wall formwork (40) with a fastening device (44),
   the predetermined position of the anchor rod (4) being reached when the second end of the anchor rod (4) pushed through reaches the stop, this stop preventing the anchor rod (4) from being screwed in further,
   the first end with the grid spacing (21) of the anchor rod (4), which is not pushed through the anchor rod bores, is connected to a locking device (5, 6, 7, 8, 13, 14, 15) provided here in such a way that this connection is aligned with the selected grid spacing (21),
   the locking device (5, 6, 7, 8, 13, 14, 15) aligned with the grid spacing (21) is connected to the adjacent first wall formwork (1, 2, 3), namely fixed to a supporting element (1) of the first wall formwork (1, 2, 3) by means of a fastening device,
   wherein a part of the locking device (5, 6, 7, 8, 13, 14, 15) aligned with the grid spacing (21) can be connected to the anchor rod (4) when the anchor rod (4) is pushed through the anchor rod bores and said part comprises a control element (13),
   the control element (13) being a part of the locking device (5, 6, 7, 8, 13, 14, 15) which is aligned with the grid spacing (21),
   wherein the control element (13) is positioned by a further stop (28) according to grid spacing,
   wherein the control element (13) is a sleeve through which the anchor rod (4) is inserted,
   characterized in that
   the grid spacing (21) is formed by a plurality of grooves,
   wherein a wall region of the further stop (28) extends into a corresponding groove (21),
   the further stop (28) being held in its intended position such that it serves as a stop for the control element (13).
7. System according to the preceding claim, characterized in that the further stop (28) has an opening with a region which permits displacement along the anchor rod (4) until a desired grid spacing position is reached.
8. System according to one of the two preceding claims, characterized in that the further stop (28) has a region which is tapered towards one end so as to be able to hang the further stop (28) stably into a groove (21) of the grid spacing.
9. System according to one of the three preceding claims, characterized in that the locking device (5, 6, 7, 8, 13, 14, 15) comprising the control element (13) comprises a flat underside which, in the assembled state, can rest flat against a supporting element (1, 2) of the first wall formwork (1, 2, 3).

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