EP4055232A1

EP4055232A1 - Concrete shaping insert, method for producing a concrete shaping insert, and method for producing a concrete component

Info

Publication number: EP4055232A1
Application number: EP20800140.4A
Authority: EP
Inventors: Felix NOWAK; Karsten Pfeffer
Original assignee: Unidome Deutschland GmbH
Current assignee: Unidome Deutschland GmbH
Priority date: 2019-11-05
Filing date: 2020-11-03
Publication date: 2022-09-14
Also published as: LU101468B1; SA522432479B1; WO2021089560A1; AR120369A1; DE202020106300U1; EP4105404A1; AU2020377447A1; CN218786937U; JOP20220096A1; US20230056558A1; AT17861U2

Abstract

The invention relates to a concrete shaping insert, which is designed to be arranged in a formwork prior to a concreting process, comprising a first holding element and a second holding element, between which at least one displacement body is arranged. The concrete shaping insert is distinguished by the fact that the displacement body has a through-tunnel and by the fact that the first holding element and the second holding element are connected to one another by means of at least one connecting component, which extends through the through-tunnel.

Description

Betonformunqeinlaqe and method for producing a Betonformunqeinlaqe as well as

Method for producing a concrete component

The invention relates to a Befonformungseinlage, which is designed to be arranged in a formwork prior to a Befoniervorgang, comprising a first Halfeelemenf and a second holding element, between which at least one displacement body is arranged.

The invention also relates to a method of manufacturing a concrete molding insert.

When producing concrete ceilings, in addition to reinforcement, displacement bodies are often arranged in the space surrounded by formwork. This has the advantage that concrete can be saved and lighter concrete ceilings can be produced †.

In EP 1 568 827 A1 it is proposed to lock displacement bodies, which are e.g. designed as plastic balls, in latticework open on one side, and then to press these modules into a first or second layer of concrete, which can already contain a first reinforcing mat. The semi-finished product produced in this way is then covered with concrete mass during later completion.

DE 20 2006 002 540 U1 discloses a module for the production of concrete parts, in particular semi-finished concrete products or concrete ceilings. The module has a plurality of replaceable displacement bodies, preferably plastic hollow balls, plastic balls or plastic half-shells, arranged next to one another in a longitudinal direction, the plurality of displacement bodies arranged next to one another being in a captive manner in a lattice work of bars. The module is intended to be pressed into a concrete layer, to be placed on a lower reinforcement or to be placed on a filigree plate. The latticework has a channel-like shape with a narrow channel base and a wide channel opening and can be stacked to save space when the displacement bodies are not inserted.

From EP 2 075 387 A1 a module for producing concrete parts, in particular semi-finished concrete products or relatively thin in-situ concrete ceilings, is known. The module has a plurality of replaceable displacement bodies arranged next to one another in a longitudinal direction, the plurality of displacement bodies arranged next to one another each being arranged in a captive manner in a latticework of bars. Each displacement body is designed as an essentially oblate ellipsoid of revolution with two at least slightly flattened pole sides. From EP 3 045 605 A1 a module for the production of concrete parts in the in-situ concrete process or in a Ferfigfeilwerk is known, which comprises a row of several displacement bodies arranged next to one another in a horizontal longitudinal direction †, which are captive in a latticework of at least two individual, longitudinally extending grids are held, the grid surfaces of which are aligned transversely to the horizontal †, each of the grids having at least one first and a second longitudinal rod, which run parallel spaced apart † in the longitudinal direction, as well as several spaced apart and transversely aligned transverse rods †, each with mi † the longitudinal bars are connected. At least one of the displacement bodies has at least one first and at least one second holding device on its outside for each grille, which are designed and arranged in such a way that both grids are accommodated by receiving the first longitudinal rod in the first holding device and receiving the second Longitudinal rod in the second holding device are at least positively and captively fixed between the first and second holding device and thereby hold all displacement bodies together.

The previously known concrete molding inserts have the particular disadvantage that their production is very complex. This is particularly because very complex two- or three-dimensional latticeworks that are adapted to the size and shape of the displacement bodies to be used are required † which hold the displacement bodies and fix them in their position relative to the other displacement bodies.

The object of the present invention is to provide a concrete molding insert which can be produced simply and stably, in particular also partially directly on the construction site, and which can nevertheless be used in a particularly flexible manner.

The object is achieved by a concrete molding insert, which is characterized in that the displacement body has a through tunnel † and that the first retaining element † and the second retaining element † mi † are connected to at least one connecting component that runs through the through tunnel.

It is a further object of the present invention to provide a method for producing a concrete molding insert which can be used flexibly and which can be carried out easily.

The object is achieved by a method which is characterized in that at least one displacement body, which has a through tunnel †, in particular several displacement bodies, are arranged between a first retaining element † and a second retaining element † and that the first retaining element † and the second Retaining elements † by means of a Connection member are connected, which runs through the through tunnel.

The invention has the very special advantage that a concrete molding insert can be produced in a simple manner, with the first and / or second retaining element advantageously being in particular easily and inexpensively available standard reinforcing parts, such as, for example, a simple reinforcing bar made of structural steel or a simple reinforcement mesh made of structural steel, † can be used.

In particular, it is particularly advantageous that the first retaining element † and the second retaining element † do not need to have a size or shape specially adapted for the displacement body to be used †.

In particular, the present invention advantageously makes it possible to deliver the required components to the construction site in a space-saving manner and to produce the concrete molding insert by simply joining the components together, preferably without tools. For example, it is particularly advantageous if the first retaining element † and the second retaining element † are each designed as a simple reinforcing bar †. Such reinforcing bars are easy and inexpensive to obtain and can be transported in a space-saving manner.

In particular, the invention has the very special advantage that the space surrounding the displacement bodies, in particular the space surrounding the displacement bodies horizontally, can remain free and there is thus the possibility of this space (in particular after a first concreting process, in which, for example, only one the lower part of a concrete ceiling was concreted †) to arrange additional reinforcement. According to the invention, however, it is not fundamentally excluded to use additional connecting elements for connecting the first holder element and the second holding element. It is also not ruled out to use additional displacement body connectors that directly connect adjacent displacement bodies to one another.

The connecting component can advantageously have a first connecting strap † for mechanical coupling to the first retaining element †. Alternatively or additionally, the connecting component can have a second connecting strap † for mechanical coupling to the second retaining element †. The connecting elements can in particular be of the same design †. However, it is also possible that the connection elements differ, in particular with regard to their mode of operation for establishing a connection to the respective half element. In a special embodiment, the connecting component has an elongated web, the first connecting cord † being arranged at one end of the web and the second connecting cord † being arranged at the other end of the web.

In an advantageous embodiment, the at least one connecting component is arranged vertically with respect to its direction of longitudinal extent. In particular in such an embodiment, the first holding element can be arranged below the at least one displacement body, while the second holding element is arranged above at least one displacement body.

In a particularly advantageous embodiment, the connecting component can be fixed to the first holding element by means of the first connecting element without tools and in particular without additional connecting means. In particular for this purpose, the first connecting strap † can be designed as a latching device. Such an embodiment is based on an independent inventive concept which can also be implemented independently of the presence of a passage tunnel in the displacement bodies and independently of whether the connecting component runs through such a connecting tunnel.

In particular, the connection component can advantageously be designed in such a way that connections that have already been made can be subsequently released again without tools and / or non-destructively. Such a design has the particular advantage that it is possible to act very flexibly on the construction site.

For example, the first connecting strap † can have a hook, in particular an elastic latching hook. The latching hook can advantageously be designed to grip around a section of the first holding element, in particular a rod-shaped section of the first holding element.

In an advantageous embodiment, the latching hook has a receptacle for a rod-shaped section of the first holding element and an insertion gap through which the rod-shaped section of the first holding element can be inserted into the receptacle. In this case, it can particularly advantageously be provided that the passage width of the insertion gap is smaller than the inside diameter of the receptacle. In this way it is ensured that the connecting component cannot automatically detach itself from the first holding element after it has snapped into place. This is especially not the case if a second connecting strap † of the connecting component has not yet been connected to the second holding element. Rather, the first connecting strap † can advantageously be designed in such a way that the connecting component after it has been connected to a rod-shaped section of the first holding component was connected, can be pivoted around the rod-shaped portion without inadvertently detaching from the sfab-shaped portion. In particular, such a pivoting movement can be used to connect the connecting component to the second Halfelemenf by means of the second connecting element, which is described in detail below.

In a very particularly advantageous embodiment, the connecting component can be fastened to the second half element by means of the second connecting element without tools and in particular without additional connecting means. For this purpose, in particular, the second connecting strap † can be designed as a latching device †. For example, the second connecting strap † can have a hook, in particular an elastic latching hook.

In a particularly advantageous embodiment, the second connecting strap has an indentation for a rod-shaped section of the second holding element. In particular, it can be provided that the second connecting cord † has a guide cord † adjoining the indentation † with † a guide surface †. Such an embodiment is particularly advantageous if the connecting component is designed in such a way that it can be pivoted around a rod-shaped section of the first holding element after it has been fixed on the first holding element. In such an embodiment, the first connecting strap † is first attached to a rod-shaped section of the first holding element †. A displacement body can then be brought into position †, the connecting component already pivotably fixed on the first holding element † being guided through the passage tunnel of the displacement body. The connecting component is then pivoted around the rod-shaped section of the first holding element until it reaches a rod-shaped section of the second holding element † ha †. As the pivoting movement continues, † the rod-shaped section of the second holding element slide along the guide surface, whereby the elastic latching hook of the second connecting element is temporarily bent open until the rod-shaped section reaches the indentation † and engages †.

The length of the connecting component is preferably matched to the height of the displacement body †. This can be implemented in particular in such a way that the displacement body is clamped in between the first holding element † and the second holding element †.

In general, the connecting component can advantageously be designed in such a way that it can initially be fastened to the first holding element, in particular in a latching manner, by means of the first connecting element and that it can then be connected to the second holding element by executing a pivoting movement, in particular in a latching manner. . The connecting component can be produced as an injection molded part, in particular as a plastic injection molded part †. Alternatively, it is also possible, for example, to produce the connecting component as a bent part, in particular as a bent sheet metal part or as a bent wire part. It is particularly cost-effective and efficient to manufacture the connecting component in one piece, for example as a one-piece injection-molded part. For example, it can advantageously also be provided that the connecting component is made from a single piece of raw material †.

The concrete molding insert according to the invention preferably has several displacement bodies, in particular several identical displacement bodies. In an advantageous manner, several of the concrete molding according to the invention can then be arranged, in particular next to one another, in a formwork before a concreting process.

In a particularly advantageous embodiment, the at least one displacement body is composed of a first displacement body part and a second displacement body part. Such a design is particularly advantageous from a logistical point of view because individual displacement body parts can be transported in a particularly space-saving manner, especially if they are designed to be stacked one inside the other.

The through tunnel can advantageously have a shape deviating from the circular shape in a cross-sectional plane perpendicular to its direction of longitudinal extent. In particular, the through tunnel can have a polygonal, in particular square, cross-section †. In particular, the through tunnel can be designed in this way in such a way that there is sufficient freedom of movement for a fixing movement of the connecting component without unnecessarily forming the through tunnel.

In a particularly advantageous embodiment, the first displacement body part has a first passage tunnel part and the second displacement body part has a second passage tunnel part, the first passage tunnel part and the second passage tunnel part together forming the passage tunnel. It can advantageously be provided here that the first through tunnel part has a first contact surface at the end and that the second through tunnel part has a second contact surface at the end, the first contact surface and the second contact surface in contact with one another. With such a design it is guaranteed † that the passage funnel files can attach to one another and can thus reliably stabilize the displacement body during a horning process.

In particular, in order to prevent the passage tunnel parts from shifting with respect to one another in the event of a load, between the first passage tunnel part and the second Through tunnel part a form-fit connection, in particular a pin connection, can be provided.

In a particular embodiment, the first displacement body part has a first connection device and the second displacement body part has a second connection device, the first connection device and the second connection device interacting and thus connecting the first displacement body part and the second displacement body part to one another.

The first connecting device and the second connecting device are preferably designed in the same way †. Such a design is particularly advantageous in order to be able to connect the same displacement body parts (or displacement body parts which differ only in terms of their height) as first and second displacement body parts.

The first connecting device and the second connecting device can advantageously each have at least one locking element †. Rusting of the first and second displacement body parts is particularly advantageous because no additional connecting means are required and because the connecting devices can in particular be designed in such a way that no tools are required to connect the first and second displacement body parts.

In particular, the first displacement body part and the second displacement body part can each have a shell-shaped design †, the connecting device being designed † in such a way that they can be connected to one another by performing a connecting movement perpendicular to the plane of the shell opening. Such a design is particularly advantageous because it allows the first and second displacement body parts to be joined together quickly and efficiently, especially on the construction site †.

In particular, the at least one displacement body can be designed as a hollow body, in particular as a hollow body filled with a hollow body. In particular, the displacement body can have a hard shell which surrounds † a cavity filled, in particular with a gas, for example Lut †. This is particularly easy to implement if the at least one displacement body, in particular directly at the Or † on which the concreting is carried out, is composed of a first displacement body part and a second displacement body part. In particular, it can be provided that the at least one displacement body is not a foam body and / or is not filled with a foam and / or does not have a shell made of a foam. Such The design can be produced in a particularly simple and cost-effective manner and, moreover, can be designed to be particularly robust with comparatively little use of material. The use of foam material in order to achieve the required stability can be problematic in particular with regard to the formation of the through tunnel and in particular in the case of a multi-part design of the displacement body. However, the use of foam is not fundamentally excluded. In particular, it is not excluded that the at least one displacement body is a foam body and / or is filled with a foam and / or has a shell made of a foam †.

In particular, as already mentioned, it can advantageously be provided that the first displacement body part and the second displacement body part are designed to be identical. However, it is advantageously also possible for the first displacement body part and the second displacement body part to have a different height. Such an embodiment is based on the independent inventive idea of achieving a particular variability with regard to the height of the displacement body in that otherwise identical displacement body parts, but with different height, can be connected to one another in order to form a displacement body in each case.

In this respect, it is possible, for example, to keep displacer parts ready which have two different heights and which are preferably otherwise of the same design. In this case, displacement bodies of three different heights can optionally be formed, since either only low displacement body parts can be connected to one another as first and second displacement body parts or, alternatively, only high displacement body parts can be connected to one another as first and second displacement body parts, or there is a high and one as a third possibility low displacement body part can be connected to one another as first and second displacement body parts.

With a number of three different types of displacement body parts of different heights, a total of six different heights can be achieved through the different combination options. For example, an assortment of (preferably otherwise identical) displacement body parts with heights of 30 mm, 50 mm, 70 mm, 90 mm, 110 mm, 130 mm, 160 mm, 190 mm and 220 mm is particularly advantageous. With such an assortment, the height requirements for almost all concrete ceilings can be met. This procedure represents an independent inventive concept that can also be advantageously implemented independently of the presence of a connection component that can be attached without tools and in particular also independently of the implementation of a pass-through tunnel and / or a connection component running through the pass-through tunnel. A corresponding Assortment of connecting components of different lengths made † and kept ready.

In an advantageous embodiment, the displacement body has a plurality of protruding ribs on its outside, in particular upward and downward directed. The downwardly directed ribs can in particular act as feet, which ensure that the displacement body does not fall over †. The ribs also ensure in particular that adjacent reinforcement arrangements are kept at a distance from the outside of the displacement bodies. This ensures † that the rebars of the reinforcement arrangement are surrounded by concrete in the required manner after concreting.

Starting from the outside of the displacement body, the ribs preferably have a height in the range from 10 mm to 25 mm, in particular in the range from 15 mm to 20 mm, in particular from 15 mm or from 20 mm.

The at least one displacement body can have on its outside at least one first storage belt † with a receptacle, in particular designed as a trough, for a section of the first holding element. Alternatively or additionally, it can advantageously be provided that the displacement body has on its outside at least one second storage belt † with a receptacle, in particular designed as a trough, for a section of the second holding element †. The bearing elements can be formed, for example, from crossed ribs, one of the crossed ribs each having a trough for a rod-shaped section of the first or second holding element †. In this way it is advantageously ensured † that the displacement bodies cannot move relative to the holding elements.

In a particularly advantageous embodiment, the displacement bodies are clamped between the first retaining element † and the second retaining element †. This can be realized, for example, in that the connecting component or the plurality of connecting components are designed in such a way that they continuously exert a force on the holding elements directed at the displacement body.

The connecting component is preferably a component that is separate and / or manufactured separately from the displacement body.

The first retaining element † preferably has at least one rod, in particular a reinforcement color. In particular, it can advantageously be provided that the first retaining element † has a rod, in particular a reinforcement color †, which is part of a reinforcement gripper, or that the first holding element consists exclusively of a rod, in particular a reinforcing rod.

Alternatively or additionally, it can advantageously be provided that the second retaining element † has at least one rod, in particular a reinforcing rod †. In particular, the second retaining element † can have a rod, in particular a reinforcing rod, which is part of a reinforcement grid. For example, it is also possible that the second retaining element † consists exclusively of a bar, in particular a reinforcing bar †.

In a special design, the first retaining element † and the second retaining element † are arranged parallel to one another. Alternatively or additionally, it can be provided that the first retaining element † and the second retaining element † are arranged together in a plane which is a plane of symmetry of the at least one displacement body. In such an embodiment, the assembly is particularly simple. In addition, such a design is particularly stable; this in particular also when the first half element and the second half element each consist exclusively of a single reinforcement fabric.

As already mentioned †, the Befonformungseinlage according to the invention preferably has several displacement bodies, each with a through tunnel, the first half element and the second half element are each connected to a connecting component that runs through one of the through tunnels. If the first and the second retaining element † are designed as rods parallel to one another †, the result is † an elongated concrete molding insert. In particular, several of these concrete forming inserts can be arranged parallel to one another in a formwork. In particular, it can advantageously be provided that several displacement bodies are arranged, in particular clamped, between the same first holding element † and the same second holding element †.

In a special design, adjacent displacement bodies are connected directly to one another with a displacement body connector. In particular, it can advantageously be provided that the displacement body connector can be attached without tools, in particular hooked or latched onto the displacement body †.

According to an independent inventive concept, which can also be implemented independently of whether the displacement body has a through tunnel † and whether the first retaining element † and the second half element are connected to one another with at least one connecting component that runs through the through tunnel, a concrete molding insert is particularly advantageous, the at least two displacement bodies aufweis †, which are directly in contact vertically one above the other and have coupling means that interlock. It is, Particularly from a static and economic point of view, it is advantageous to arrange displacement bodies on top of one another when it comes to concreting correspondingly thick building components. For some concrete components, this variant is even more advantageous than using larger displacement bodies. In particular, it is also possible in this way † to use concrete molding inserts with the same displacement bodies for all concrete components when producing a structure, the displacement bodies being arranged in one layer for the production of comparatively thin concrete components and in multiple layers, in particular two layers, one above the other for the production of thicker concrete components † are.

The coupling means advantageously prevent the displacement bodies from moving relative to one another, in particular during the concreting process. The coupling means can advantageously each have at least one projection and / or at least one depression. In particular, it can advantageously be provided that the coupling means of a displacement body is jointly produced in one piece with a shell of the displacement body.

In a particularly advantageous embodiment, the coupling means has at least one of the displacement bodies, in particular each displacement body, at least one protruding rib arranged on the outside of the displacement body. In particular, the coupling means can comprise at least one of the displacement bodies, in particular each displacement body, a plurality of protruding ribs arranged on the outside of the displacement body. It can advantageously be provided here that at least two of the ribs run in planes which have an angle different from zero degrees to one another and / or which have a right angle (90 degrees) to one another. Such a design enables † a simple coupling of the displacement bodies and guarantees † a safeguard against displacement of the displacement bodies arranged one above the other in all horizontal spatial directions. Alternatively or additionally, the ribs can advantageously be arranged in pairs parallel to one another †. It is particularly advantageous if each displacement body has coupling means on both the top and the bottom †. This enables the use of identical parts †. In addition, the coupling means (or the coupling means) on the underside of the lowermost displacement body can advantageously function as a stand (or as a stand).

The concrete molding insert with displacement bodies arranged one above the other preferably has at least one holding element which holds the displacement bodies in position relative to one another. In particular, it can advantageously be provided that the displacement bodies arranged one above the other are arranged between a first holding element † and a second holding element †, in particular clamped †. The first retaining element † and the second Retaining elements † can be connected to one another by means of at least one connecting component.

Particularly advantageous is a shaping insert with displacement bodies arranged one above the other, in which the displacement bodies arranged one above the other have through funnels through which the connecting component runs, which connect the first retaining element † and the second retaining element † with one another †. In particular, the independent inventive concept can advantageously be implemented with one or more of the features described above.

A concrete component, in particular a concrete ceiling, which contains at least one concrete forming insert according to the invention is particularly advantageous.

In order to facilitate the assembly process, a positioning aid or a system of several positioning aids can be used † according to an independent inventive concept. This invention aspect † can be used advantageously when assembling concrete molding inserts according to the invention, but also when assembling concrete molding inserts not according to the invention.

The positioning aid is preferably designed and provided to temporarily hold at least one displacement body for an assembly process. In particular, the positioning aid can advantageously be designed to hold the displacement body in such a way that it stands upright and cannot accidentally tip over.

The positioning aid can have recesses which have specifically for (in particular, clamping) receiving, in particular protruding, parts of the displacement bodies and / or for receiving sections of the connecting component and / or for receiving one of the holding elements.

In particular, the positioning aid can be designed as a plate † having the aforementioned recesses †. The positioning aid can for example be made from a light material, in particular from a foam or a rigid foam †.

In particular, it can advantageously be provided that several positioning aids can be connected to one another, in particular by means of a form-fit connection in each case. The form-fit connection can, for example, be designed in a manner similar to that of puzzle pieces †.

For example, a positioning aid can be designed to hold a single displacement body upright for an assembly process. By connecting Several such positioning aids can simply be used to create a positioning aid system † which is individually designed for the required number of displacement bodies to be connected †.

The assembly process of the concrete forming insert can then proceed in such a way that positioning aids are first connected to one another in the required number and laid out on the floor. Then the first retaining element † and the required connecting components are inserted into the recesses provided in the positioning aids. In a next step, the displacement bodies are positioned, with the connecting component being guided through the passage tunnel and protruding parts of the respective displacement body (e.g. protruding ribs and / or bearing elements) being introduced into the corresponding recesses of the respective positioning aid, so that the displacement body in Result is held upright by the positioning aid. Then the connecting components are coupled with the second retaining element.

The finished concrete molding insert can then be detached from the positioning aids and brought to the place intended for a concreting process †. The positioning aids can then be used again for the assembly of the next concrete molding insert †. Finally, the positioning aids can be detached from each other again. The positioning aids can advantageously be stacked on top of one another for transport. All positioning aids are preferably designed in the same way †.

In the drawing, the subject matter of the invention is shown schematically and by way of example and is described below with reference to the figures, elements that are the same or have the same effect in different exemplary embodiments are mostly provided with the same reference symbols. Show:

1 shows a first embodiment of a concrete molding insert according to the invention,

2 shows the first embodiment of the concrete molding insert in a perspective

View,

3 shows the first exemplary embodiment of the form-fitting insert 1 in a plan view from above,

4 shows an arrangement of several of the conforming inserts 1, 5 shows a cross-sectional representation of a section of a concrete ceiling that contains the first embodiment of a form-fitting insert according to the invention †,

Fig. 6 shows an embodiment of a first displacement body part for the

Displacement body of a concrete molding insert according to the invention,

Fig. 7 shows an embodiment of a second displacement body part for the

Displacement body of a concrete molding insert according to the invention,

8 shows the second displacement body part in a plan view from above,

9 shows an illustration of a possible procedure for producing a concrete forming insert according to the invention,

10 shows the displacement body clamped between a first retaining element † and a second retaining element † in a top view from above,

Fig. 1 1 the displacement body clamped between the first retaining element † and the second retaining element † in a representation that allows a view into the interior †,

Fig. 12 a further detailed view †, which allows a view into the interior of the through tunnel †,

13 shows a detailed view of a second exemplary embodiment of a concrete molding insert according to the invention,

14 shows a further detail view † of the second exemplary embodiment of a concrete molding insert according to the invention,

15 shows a detailed view of an assembled displacement body of the second exemplary embodiment,

16 shows an exemplary embodiment of a connecting component that can be attached without tools,

Fig. 17 is an illustration of how the connecting component is used †,

Fig. 18 is a further illustration of how the connecting component is used †, 19 is a further illustration of how the connecting component is used;

FIG. 20 shows an assortment of connection components that can be attached without tools,

21 shows a defective drawing of a drift exemplary embodiment of one according to the invention

Conforming insert,

22 shows a defailansichf of the drift embodiment of an inventive

Conforming insert from above,

23 shows a defail view of the third exemplary embodiment of one according to the invention

Concrete molding from below,

24 shows a defailansichf of a fourth embodiment of an inventive

Concrete molding insert,

25 shows a detailed view of a fifth exemplary embodiment of one according to the invention

Concrete molding insert,

26 shows a detailed view of a sixth exemplary embodiment of one according to the invention

Conforming insert,

27 shows an embodiment of a displacement body connector,

28 shows another embodiment of a displacement body connector,

29 shows a first displacement body part in an alternative design for a shaping insert according to the invention,

30 shows a second displacement body part in an alternative design for a shaping insert according to the invention.

31 shows an embodiment of a positioning aid,

32 shows an exemplary embodiment of a system of positioning aids, and

33 shows a detail view of a seventh exemplary embodiment of one according to the invention Conforming insert.

Figure 1 shows † a first embodiment of a concrete forming insert 1 according to the invention, which is designed † to be arranged in a formwork before a concreting process. The concrete molding 1 has † a first retaining element † 2, which is designed as a first reinforcing bar 3 †. The concrete molding 1 also has a second retaining element † 4, which is designed as a second reinforcing bar 5 †. The first reinforcing bar 3 and the second reinforcing bar 5 are arranged parallel to one another and vertically one above the other †.

In addition, the Befonformungsanlage 1 has several displacement bodies 6, which are arranged between the first holding element † 2 and the second holding element † 4.

The first retaining element † 2 and the second retaining element † 5 are connected to one another by means of several connecting components 7 that can be attached without tools. Each of the displacement bodies 6 has a passage funnel 8 through which one of the connecting components 7 runs.

Figure 2 shows † the Befonformungseinlage in a perspective view from a different angle.

Figure 3 shows † the Befonformungseinlage 1 in a plan view from above.

FIG. 4 shows an arrangement of several of the concrete forming inserts 1 in a formwork (not shown). The concrete forming inserts 1 are arranged on a first reinforcement arrangement 9, which is designed as a first reinforcement grid. In FIG. 4, the first reinforcement arrangement 9 is only partially shown for the sake of clarity. On the concrete forming inserts 1 there is a second reinforcement arrangement 10 which is designed as a second reinforcement grid. The second reinforcement arrangement 10 is also only partially shown for the sake of clarity †.

After the reinforcement arrangements 9, 10 and the concrete forming inserts 1 have been arranged within the formwork (not shown), concrete can be poured into the formwork. In particular, it is also possible to carry out the concreting process in several time-spaced steps.

FIG. 5 shows, in a cross-sectional view, a detail from a concrete ceiling which contains a form-fitting insert 1 according to the invention. The Befonformungseinlag 1 is arranged between the first reinforcement arrangement 9 and the second reinforcement arrangement 10 †. Each of the displacement bodies has † four sfifff-shaped rebate halves 11, evenly distributed along its equatorial circumference, which ensure that the desired distance between the displacement bodies 6 of the form-fitting inserts 1 and the displacement bodies 6 of the adjacent form-form inserts 1 (not shown) is maintained.

Each of the displacement bodies 6 is composed of a first displacement body part 13 and a second displacement body part 14, which is explained in detail below.

Each of the displacement bodies 6 has ribs 12 protruding on its outside and arranged in a cross-like manner in pairs, which, starting from the outside of the respective displacement body 6, have a height preferably in the range of 10 mm to 25 mm, in particular 15 mm. The ribs 12 ensure in particular that the reinforcement arrangements 9, 10 are kept at a distance from the outside of the displacement bodies 6, so that it is ensured that the reinforcement bars of the reinforcement arrangement 9, 10 are surrounded by concrete 35 in the required manner. The lower ribs 12 also function as feet, which ensure that the displacement body 6 does not fall over.

The spaces between the displacement bodies 6 and the spaces above and below the concrete forming insert 1 are completely filled with concrete 35, so that the reinforcement arrangements 9, 10 are also completely enclosed in concrete 35.

FIG. 6 shows, by way of example, a first displacement body part 13 which, with the second displacement body part 14 shown in FIG. 7, can be assembled to form a displacement body 6 without tools, namely by a latching process.

The first displacement body part 13 shown in Figure 6 is key-shaped † and has † a first connecting device on the peripheral edge of the opening, which on the peripheral edge contain alternating locking tabs 15 and locking projections 16 †.

The first displacement body part 13 has a first passage tunnel 17, which together with a second passage tunnel part 18 of a second displacement body part 14, as shown for example in FIG. 7, form the passage tunnel 8 of the displacement body 6, which is shown in detail in particular in FIGS. 11 and 12.

The first through tunnel part 17 has a first contact surface 19 at the end. The contact surface 19 has two pegs 20 and also has two through holes 21. The pins 20 and the through holes 21 serve to produce a form-fit connection with the complementary second through tunnel part 18 of a second displacement body part 14.

The first displacement body part 13 has four protruding spacers 11 distributed uniformly on the outer circumferential edge, which, in the assembled state, come into contact with corresponding spacers 11 of the second displacement body part 14. The spacers 11 ensure that the desired distance between the displacement bodies 6 of the concrete forming inserts 1 and the displacement bodies 6 of adjacent concrete forming inserts 1 is maintained. For this purpose, provision is made for the displacement bodies 6 to be arranged in such a way that the free ends of the spacers 11 of adjacent displacement bodies 6 touch one another.

The first displacement body part 13 has on its outside (not visible in FIG. 6) protruding ribs 12 which, as already explained, ensure the necessary spacing from adjacent reinforcements. In addition, the ribs 12 serve as feet and ensure that the displacement body 6 can safely stand upright.

The second displacement body part 14 has a plurality of bearing elements 22 (not visible in FIG. 6) on its outside, which bearing elements 22 are designed to interact with the first holding element 2. The bearing elements are designed in exactly the same way as in the case of the second displacement body part 14 shown in FIG.

FIG. 7 shows a second displacement body part 14 which, in this exemplary embodiment, has the same design as the first displacement body part shown in FIG. This is advantageous with regard to the use of identical parts. However, this is not absolutely necessary. On the contrary, it can also be advantageous if the first displacement body part 13 and the second displacement body part 14 are not designed to be completely identical, but rather differ at least in terms of their height, which is explained in detail below.

The second displacement body part 14 has on its outside protruding ribs 12 which, as already explained, ensure the necessary spacing from adjacent reinforcements. The second displacement body part 14 has alternating locking tabs 15 and locking projections 16 on the circumferential edge of the opening. The locking tabs 15 of the second displacement body part 14 are designed to interact with the locking projections 16 of the first displacement body part 13, while the locking projections 16 of the second displacement body part 14 are designed to interact with the locking tabs 15 of the first displacement body part 13. The first displacement body part 13 and the second displacement body part 14 can be connected to one another in a latching manner by executing a connecting movement perpendicular to the plane of their shell openings by means of the rasping bottles 15 and the rasping projections 16 of the connecting devices.

The second displacement body part 14 has several bearing elements 22 on its outside, which are designed to interact with the second holding element 4. The bearing elements 22 each consist of crossed ribs, with one of the crossed ribs having a trough 23 for the second holding element † 4 designed as a reinforcing bar 5 †. The bearing elements 22 are each arranged between two mutually parallel ribs 12 and are dimensioned in such a way that the inserted second retaining element 4 does not protrude upward beyond the ribs 12.

A total of four pairs of bearing elements 22 are present, with the use of a second holding element designed as a reinforcing bar only four of the bearing elements 22 being required, which are arranged in two pairs and in a straight line on both sides of the opening of the through tunnel 8. The four other bearing elements 22, which are arranged along a straight line †, which are arranged perpendicular to the straight line † along which the bearing elements 22 used are arranged †, are used when a second retaining element is used, which is designed as a reinforcing bar †, not required †.

However, the special arrangement of the bearing elements makes it possible to use a first displacement body part 13 as a second displacement body part 14 and vice versa. In this respect, a symmetrical design of the displacement body parts 13, 14 with respect to the central axis running through the through funnel 8 is particularly advantageous. In the present case, the displacement body files 13, 14 have a four-fold rotational symmetry. This principle can also be implemented advantageously when the displacement body parts have different heights.

Figure 8 shows † the second displacement body part 14 in a plan view from above.

The second displacement body part 14 has †, as already mentioned †, a second through tunnel part 18 which together with the first through tunnel part 17 of the first displacement body part 13 form the through tunnel 8 †. The second passage funnel file 18 has a circumferential collar 25 at the end, the two second passage openings 24 ha. The first pins 20 of the first displacement body part 13 can engage positively in the through openings 24. The collar 25 for its part carries pins (not visible in this figure), which engage in the through openings 21 of the first displacement body file 13. The circumferential collar 25 provides a second contact surface on the soap, not visible in FIG. 8, which contacts the first contact surface 19 of the first displacement body file 13.

FIG. 9 illustrates a possible procedure when producing a conforming insert 1 according to the invention. For this purpose, a first displacement body file 13 is connected in a latching manner to a second displacement body part 14, a connecting movement being carried out perpendicular to the plane of the shell openings. During the locking process, the locking tabs 15 and the locking projections 16 lock into one another. At the same time, the first contact surfaces of the first through tunnel part 17 and the second through tunnel part 18 come into contact with one another, with a form-fit connection, namely a tenon connection, being established between the first through tunnel part 17 and the second through tunnel part 18.

The displacement body 6 is then clamped between a first holding element 2 and a second holding element 2 by connecting the holding elements 2, 4 without tools by means of a connecting component 7 which runs through the through tunnel 8.

FIG. 10 shows the displacement body 6 clamped between the first holding element 2 and the second holding element 4 in a plan view from below, only a portion of the reinforcing bar 3, which forms the first holding element 2, being shown so as not to obstruct the spacers 11 in the figure cover up.

FIG. 11 shows the displacement body 6 clamped between the first holding element 2 and the second holding element 4 in a representation that allows a view into the interior. It can be seen in particular that the first through tunnel part 17 and the second through tunnel part 18 bear against one another and together form the through tunnel 8. In a cross-sectional plane perpendicular to its direction of longitudinal extent, the through tunnel 8 has a shape that deviates from the circular shape, namely a square shape.

FIG. 12 shows a further detailed view which allows a view into the interior of the passage tunnel 8 through which the connecting component 7 runs.

FIGS. 13 and 14 show details of a second exemplary embodiment of a concrete molding insert 1 according to the invention. In contrast to the embodiment shown in FIGS. 1 to 12, the first displacement body part 13 and the second Displacement body part 14 in this embodiment does not have the same design, but rather differ in terms of their height in the direction of the longitudinal direction of the passage tunnel. In this embodiment, the first displacement body part 13 can, for example, have a height of 110 mm, while the second displacement body part 14 has a height of, for example, 50 mm †.

However, the first connection device of the first displacement body part 13 and the second connection device of the second displacement body part 14 are the same and are designed in such a way, in particular rotationally symmetrical, that it is possible to selectively connect only lower displacement body parts 13, 14, for example 50 mm in height, in order to achieve a To achieve displacement body 6 with a total height of 100 mm, or exclusively to connect higher displacement body parts 13, 14 of, for example, 110 mm height with each other in order to achieve a displacement body 6 with a total height of 220 mm, or (as in the present example) lower and higher displacement body parts 13, 14 to connect to one another, to a result

To achieve displacement body 6 a total height of 160 mm.

In this way, through the different possible combinations of only two types of displacement body parts 13, 14, a total of three different heights can be achieved. With a number of three different displacement body parts 13, 14 of different heights, a total of six different heights can be achieved through the different possible combinations. This procedure represents an independent inventive concept, which can also be advantageously implemented independently of the presence of a connection component that can be attached without tools and in particular also independently of the implementation of a through tunnel 8 and / or a connection component 7 running through the through tunnel.

FIG. 15 shows a detailed view of the assembled displacement body 6 with a total height of 160 mm.

FIG. 16 shows an exemplary embodiment of a connecting component 7 which can be attached without tools and with which the first holding element 2 and the second holding element 4 can be connected to one another. The connecting component 7 has a first connecting strap † 26 which is designed for mechanical coupling to the first holding element 2. In addition, the connecting component 7 has a second connecting strap † 27, which is designed in particular for mechanical coupling to the second holding element 4. The first connecting strap † 26 is designed as a locking device and has an elastic locking hook 28. The latching hook 28 is designed to have a rod-shaped section of the first holding element 2, in particular to grip positively. For this purpose, the elastic latching hook 28 has a receptacle 29 for the rod-shaped section of a first holding element 2 and an insertion gap 30 through which the rod-shaped section of the first holding element 2 can be inserted into the receptacle 29. The passage width of the insertion gap 30 is smaller than the inner diameter of the receptacle 29. This ensures † that the connecting component 7 cannot automatically detach from the first holding element † 2 after it has snapped into place. This is especially not the case if the second connecting strap † 27 has not yet been connected to the second retaining element † 4. Rather, the first connecting belt 26 is advantageously designed in such a way that the connecting component 7, after it has been connected to a rod-shaped section of the first holding component 2, can be pivoted around the rod-shaped section without inadvertently detaching itself from the rod-shaped section.

The second connecting strap 27 is also designed as a latching device and has an elastic latching hook with an indentation 31 for a rod-shaped section of the second holding element 4. A guide strap † 32 with a guide surface 33 adjoins the indentation 31.

The connecting component 7 has an elongated web 34. The first connecting cord † 26 is located at one end of the bar †. At the other end of the web 34 the second connecting strap † 27 is arranged †.

Figures 17 to 19 illustrate schematically how the connecting component is used †. becomes.

First, the first connecting strap † 26 mi † a rod-shaped section of the first holding element 2 is locked †, which is shown in FIG. 17 †. In particular, the connecting component 7 can now be guided through the through tunnel 8, but this is not shown in the figures for the sake of clarity.

The connecting component 7 is then pivoted about the rod-shaped section of the first holding element 2 until it reaches a rod-shaped section of the second holding element 4, which is shown in FIG. If the pivoting movement is continued, † the rod-shaped section of the second holding element 4 slide along the guide surface 33, whereby the elastic latching hook of the second connecting element 27 is temporarily bent open until the rod-shaped section reaches the indentation 31 † and engages †, which is shown in Figure 19 † .

Figure 20 shows † an assortment of tool-free attachable connecting components 7, the have different lengths. This range can be used in particular in connection with the use of displacement bodies 6 of different total heights, for example for concrete ceilings of different heights. The assortment is preferably tailored to the fact that many different total heights are realized by the combination of first displacement body parts 13 and second displacement body files 14, which have different heights.

FIG. 21 shows a detailed representation of a third exemplary embodiment of a concrete molding insert 1 according to the invention, in which a connecting component 7 was used, which is shown in FIG. 16. The detailed representation allows † a look through the through tunnel 8. It can be seen in particular that the first retaining element † 2 with the first connecting strap † 26 has rusted †, while the second retaining element † 47 with the second connecting strap † 27 of the connecting part 7 is rusting †.

FIG. 22 shows a defail view of the third embodiment of a form-fitting insert 1 according to the invention from above, while FIG. 23 shows a defail view of the third embodiment of a concrete-forming insert 1 according to the invention from below.

24 shows a defail view of a fourth exemplary embodiment of a concrete molding insert 1 according to the invention, the first retaining element † 2 and the second retaining element † 4 and the connecting strap † 7 not being drawn in for the sake of clarity. The

In this exemplary embodiment, displacement bodies 6 are connected to one another with a displacement body connector 35 at the equivalent height of displacement body 6. The additional connecting component 35 also ensures, in particular, that the desired spacings between the displacement bodies 6 are maintained. A deficiency view of a possible embodiment of the displacement body connector 35 is shown in FIG.

25 shows a detailed view of a fifth exemplary embodiment of a concrete molding insert 1 according to the invention, the first retaining element 2 and the second retaining element 4 and the connecting strap 7 not being drawn in for the sake of clarity. The

In this exemplary embodiment, displacement bodies 6 are connected to one another at the top with a displacement body connector 36. The displacer connector 36 is hooked into a storage strap † 22. The displacement body connector 36 also ensures, in particular, that the desired spacings between the displacement bodies 6 are maintained. A defective view of a possible embodiment of the displacement body connector 36 is shown in FIG. 26 shows a detailed view of a sixth exemplary embodiment of a form-fitting insert 1 according to the invention, the first half element 2 and the second half element 4 and the connecting cord 7 not being shown for the sake of clarity.

In this exemplary embodiment, the displacement bodies 6 are connected to a displacement body connector 35 at the equivalent height of the displacement body 6 and are also connected to one another at the top with a displacement body connector 36.

Figures 29 and 30 show a first displacement body part 13 and a second displacement body part 14 in an alternative design for a concrete molding insert 1 according to the invention, in particular for a concrete molding insert 1 as shown in Figures 24, 25 and 26. The displacement body parts 13, 14 are designed in the same way † and have a plurality of grooves 37 into which lines (not shown), in particular electrical lines, can be placed. In particular, it can advantageously be provided that the second half element † 4 is installed † after the lines have been laid † so that the lines are additionally secured in their position by the second half element † 4. Alternatively, it is also possible, for example, to pull the lines under the second Halfelemen † 4 or above the second Halfelemen 4.

The displacement body 6 hergesfellfe from the first displacement body part 13 and the second displacement body part 14 has flattened side surfaces and is particularly high in relation to its diameter. The flattened side surfaces make it possible to fill the space between adjacent displacement bodies 6 with a largely uniformly thick layer of concrete. These displacement bodies 6 are in particular intended † to be used with particularly thick concrete ceilings. In this embodiment, too, it is possible (according to an independent inventive concept) to combine first displacement body parts 13 and second displacement body parts 14 of different heights or, alternatively, to use the same displacement body files 13, 14.

31 shows an exemplary embodiment of a positioning aid 38 which is designed in the shape of a piaffe. The positioning aid 38 can be used when assembling a conforming insert according to the invention.

The Posifionierungshilfe 38 is designed to help exactly one displacement body 6 upright for an assembly process. The positioning aid 38 has first recesses 39 which are specially designed and arranged to receive the protruding ribs 12 of a displacement body 6. The positioning aid 38 has † second recesses 40, which are specially designed and arranged to accommodate the bearing elements 22 of a displacement body 6. The positioning aid 38 has a drift recess 41 which is specially designed and arranged to receive the first connecting element 26 of the connecting component 7. The positioning aid 38 has a fourth recess 42 which is specially designed to receive the web 34 of the connecting component 7. The positioning aid 38 has a fifth recess 43, which is specially designed and arranged to receive the first half elements 2.

The positioning aid 38 has form-fit portions 44, which make it possible to connect several similar positioning aids 38 to one another to form a positioning aid system 45, which is shown in FIG. 32. The form-fit connections are designed similarly to puzzle files.

The assembly process of the shaping insert 1 proceeds in such a way that a plurality of the positioning aids 38 are first connected to one another in the required number and laid out on the floor. The first half element 2 and the required connecting components 7 are then inserted into the recesses 421, 42, 43 of the positioning aids 38 provided for this purpose. In a next document, the displacement bodies 6 are positioned †, with the connecting component 7 being guided through the tunnel 8 and with the ribs 12 and the bearing elements 22 of the respective displacement body 6 in the corresponding recesses 39, 40 of the respective positioning aid 38 (preferably clamping) introduced so that the displacement body 6 is helped upright by the positioning aid 38 as a result. The connecting components 7 are then coupled to the second half element 4.

The finished Befonformungseinlage 1 is then released from the positioning aids 3 and brought to the intended place for a Befoniervorgang †. The positioning aids 38 can then be used again for the assembly of the next Befonformungseinlage 1 †. Finally, the positioning aids 38 can be detached from one another again. The positioning aids 38 can advantageously be stacked one on top of the other for transport.

FIG. 33 shows a seventh exemplary embodiment of a form-fitting insert 1 according to the invention, which is designed to be arranged in a formwork before a form-fitting process. The Befonformungseinlage 1 has † a first Halfeelemenf 2, which is designed as a first reinforcement fabric 3. The Befonformungseinlage 1 also has a second Halfeelemenf 4, which is designed as a second Reinforcement fabric 5. The first reinforcement color 3 and the second reinforcement color 5 are arranged parallel to one another and lying vertically one above the other. In addition, the concrete molding system 1 has several identical displacement bodies 6, which are arranged in a row in pairs on top of one another between the first holding element † 2 and the second holding element † 4. It would also be possible to arrange different displacement bodies 6, in particular of different heights, one above the other.

The first retaining element † 2 and the second retaining element † 5 are connected to one another by means of several connecting components 7 that can be attached without tools. Each of the displacement bodies 6 has a through funnel 8. The through funnels 8 of the displacement bodies 6 arranged one above the other are in alignment with one another. A connecting component 7, which connects the first retaining element † and the second retaining element † to one another, runs through the aligned through tunnels 8 of the displacement bodies arranged one above the other.

The downwardly directed ribs 12 of the upper displacement body 6 and the upwardly directed ribs 12 of the lower displacement body 6 function in this embodiment as coupling means which interlock. The coupling means advantageously prevent the displacement bodies 6 from being displaced relative to one another, in particular during a concreting process.

List of reference symbols:

1 concrete molding insert

2 first half elements †

3 first reinforcement fab

4 second half elements †

5 second rebar

6 displacement bodies

7 connecting component

8 through tunnels

9 first reinforcement arrangement

10 second reinforcement arrangement

11 spacers

12 rib

13 first displacement body part

14 second displacement body part

15 locking tab

16 locking projection

17 first passage tunnel section

18 second part of the tunnel

19 contact surface

20 cones

21 through holes

22 bearing elements

23 trough

24 openings

25 collar

26 first connecting strap †

27 second connecting strap †

28 elastic snap-in hooks

29 Recording

30 introducer †

31 indentation

32 guide straps †

33 guide surface

34 bridge

35 Displacer connector

36 Displacer connector

37 gutter

38 Positioning aid

39 first recess

40 second recess

41 third recess

42 fourth recess

43 fifth recess

44 form-fit section

45 Positioning Aid Systems

Claims

1. Concrete molding insert, which is designed to be arranged in a formwork prior to a fastening process, comprising a first half element † and a second half element †, between which at least one displacement body is arranged, characterized in that the displacement body has a through funnel † and that the first Halfeelemen † and the second Halfeelemen † mi † are connected to at least one connecting component that runs through the tunnel.

2. Concrete molding insert according to claim 1, characterized in that the

The connecting component has a first connecting strap † for mechanical coupling to the first retaining element † and that the connecting component has a second connecting strap † for mechanical coupling to the second retaining element †.

3. Concrete molding insert according to claim 2, characterized in that the

The connecting component can be fixed to the first retaining element † without tools by means of the first connecting element.

4. Concrete molding insert according to claim 2 or 3, characterized in that the first connecting belt † is designed as a locking device †.

5. Concrete molding insert according to one of claims 2 to 4, characterized in that the first connecting rope † has a hook, in particular an elastic locking hook, aufweis †.

6. Concrete molding insert according to claim 5, characterized in that the latching hook engages around a portion of the first holding element, in particular a rod-shaped portion of the first holding element †.

7. Concrete molding insert according to claim 5 or 6, characterized in that the latching hook has a receptacle for a rod-shaped section of the first holding element and an insertion gap † through which the rod-shaped section of the first holding element can be inserted into the receptacle †.

8. Concrete molding insert according to claim 7, characterized in that the passage width of the insertion gap is smaller than the inner diameter of the receptacle.

9. Concrete molding insert according to one of claims 2 to 8, characterized in that the connecting component can be fixed to the second Halfelemenf without tools by means of the second connecting element.

10. Befonformungseinlage according to one of claims 2 to 9, characterized in that the second connecting strap † is designed as a locking device †.

11. Concrete molding insert according to one of claims 2 to 10, characterized in that the second connecting strap † has a hook, in particular an elastic locking hook, aufweis †.

12. Concrete molding insert according to claim 10 or 11, characterized in that the second connecting belt † has an indentation for a rod-shaped portion of the second holding element †.

13. Concrete molding insert according to claim 12, characterized in that the second connecting belt † has a guide belt adjoining the indentation † mi † a guide surface †.

14. Concrete molding insert according to one of claims 2 to 13, characterized in that the connecting component has an elongated web †, with the first connecting strap † at one end of the web and the second connecting strap † being arranged at the other end of the web.

15. Concrete molding insert according to one of claims 2 to 14, characterized in that the connecting component is designed † that it, in particular latching, is initially fastened to the first retaining element † by means of the first connecting element and that it is then by performing a pivoting movement, in particular latching, with which the second retaining element can be connected.

16. Concrete molding insert according to one of claims 1 to 15, characterized in that the connecting component is designed as an injection molded part or as a plastic injection molded part or as a bent part or as a bent sheet metal part or as a bent wire part.

17. Concrete molding insert according to one of claims 1 to 16, characterized in that the connecting component is made in one piece †.

18. Concrete molding insert according to one of claims 1 to 17, characterized in that the displacement body is composed of a first displacement body part and a second displacement body part.

19. Concrete molding insert according to one of claims 1 to 18, characterized in that the through-tunnel in a transverse section plane perpendicular to its longitudinal direction has a shape deviating from the circular shape † or that the through-tunnel in cross-section is polygonal, in particular square, is formed †.

20. Concrete molding insert according to one of claims 1 to 19, characterized in that the first displacement body part has a first through tunnel part and the second displacement body part has a second through tunnel part, the first through tunnel part and the second through tunnel part together forming the through tunnel.

21. Concrete molding insert according to claim 20, characterized in that the first through tunnel part has a first contact surface at the end † and that the second through tunnel part has a second contact surface at the end †, the first contact surface and the second contact surface resting against one another.

22. Concrete molding insert according to claim 20 or 21, characterized in that a form-fit connection, in particular a tenon connection, exists between the first passage tunnel part and the second passage tunnel part.

23. Concrete molding insert according to one of claims 18 to 22, characterized in that the first displacement body part has a first connection device † and that the second displacement body part has a second connection device †, wherein the first connection device and the second connection device work together and the first displacement body part and connect the second displacement body part.

24. Concrete molding insert according to claim 23, characterized in that the first connecting device and the second connecting device are formed identically †.

25. Concrete molding insert according to claim 23 or 24, characterized in that the first connecting device and the second connecting device each have at least one locking element †.

26. Concrete molding insert according to one of claims 23 to 25, characterized in that the first displacement body part and the second displacement body part are each shell-shaped † and can be or are connected to one another by performing a connecting movement perpendicular to the plane of the shell opening by means of the connecting devices.

27. Concrete molding insert according to one of claims 18 to 26, characterized in that the first displacement body part and the second displacement body file have a different height.

28. Befonformungseinlage according to one of claims 1 to 27, characterized in that the displacement body has several protruding ribs on its outside † or that the displacement body has several protruding ribs on its outside †, which, starting from the outside, have a height in the range of 10 mm up to 25 mm, in particular in the range from 15 mm to 20 mm, in particular from 15 mm or from 20 mm.

29. Concrete molding insert according to one of claims 1 to 28, characterized in that the displacement body has on its outside at least one first storage belt † with a, in particular designed as a trough, receptacle for a portion of the first holding element † and / or that the displacement body has its outside has at least one second storage belt † with a receptacle, in particular designed as a trough, for a section of the second holding element †.

30. Concrete molding insert according to one of claims 1 to 29, characterized in that the displacement body between the first retaining element † and the second retaining element † is clamped † or that the displacement body is clamped † by means of the connecting component between the first retaining element † and the second retaining element † .

31. Concrete molding insert according to one of claims 1 to 30, characterized in that the at least one connecting component in each case a force directed towards the displacement body on the first retaining element † and the second retaining element † exert †.

32. Concrete molding insert according to one of claims 1 to 31, characterized in that the connecting component is a component that is separate and / or manufactured separately from the displacement body.

33. Concrete molding insert according to one of claims 1 to 32, characterized in that a. the first retaining element † has at least one rod, in particular a reinforcing rod †, or that b. the first retaining element † has a bar, in particular a reinforcing bar †, which is part of a reinforcement lattice, or that c. the first holding element consists exclusively of a rod, in particular a reinforcing rod.

34. Concrete molding insert according to one of claims 1 to 33, characterized in that a. the second half element † has at least one bar, in particular a reinforcing bar †, or that b. the second retaining element † has a bar, in particular a reinforcing bar †, which is part of a reinforcement lattice, or that c. the second retaining element † consists exclusively of a bar, in particular a reinforcing bar †.

35. Befonformungseinlage according to any one of claims 1 to 34, characterized in that the first retaining element † and second retaining element † are arranged parallel to each other and / or that the first retaining element † and second retaining element † are arranged together in a plane that has a plane of symmetry is at least one displacement body.

36. Befonformungseinlage according to any one of claims 1 to 35, characterized in that a. the Befonformungseinlage is designed to be arranged in addition to a reinforcement in a formwork prior to a Befoniervorgang, or that b. the concrete molding insert is designed † to be placed in a formwork between two reinforcement arrangements prior to concreting.

37. Concrete molding insert according to one of claims 1 to 36, characterized in that there are several displacement bodies which have a through tunnel, the first retaining element † and the second retaining element † mi † each being connected to a connecting component that passes through one of the through tunnels runs.

38. Concrete molding insert according to claim 37, characterized in that adjacent displacement bodies are connected directly to one another with a displacement body connector.

39. Concrete component, in particular concrete ceiling, containing at least one concrete forming insert according to one of claims 1 to 38.

40. Method for producing a conforming insert, in particular one

39, characterized in that at least one displacement body, which has a through tunnel †, in particular several displacement bodies, are arranged between a first retaining element and a second retaining element and that the first retaining element and the second retaining element are connected by means of a connecting component that runs through the through tunnel.

41. The method according to claim 40, characterized in that the displacement body is clamped between the first holding element and the second holding element by means of the connecting component.

42. The method according to claim 40 or 41, characterized in that the connecting component is first attached to the first holding element and the connecting component is then inserted through a passage tunnel of the displacement body and that the connecting component is then attached to the first holding element.

43. The method according to any one of claims 40 to 42, characterized in that each displacement body is temporarily fixed on a positioning aid which holds the displacement body in a target position.

44. A method for producing a concrete component, in particular a concrete ceiling, characterized in that at least one concrete forming insert is produced in a formwork according to the method according to one of claims 40 to 43 or that outside a formwork at least one concrete forming insert according to the method according to claim 38 or 39 †, which is then arranged in the formwork, in particular fastened.

45. The method according to claim 44, characterized in that at least one reinforcement arrangement, in particular a reinforcement arrangement different from the first holding element and / or the second holding element, is arranged in the formwork.

46. The method according to claim 44 or 45, characterized in that the formwork is filled with concrete in one or more steps.