EP3939759A1 - Holding device for fixing concrete components in a mould - Google Patents

Abstract

The invention relates to a holding device (1) for fixing concrete components in a mold for laying wall elements (2) made of concrete in a formwork trough (3), characterized by several securing means (7) distributed over the peripheral edge of the formwork trough (3). , which are positioned on the upper side of the edge formwork elements (6, 6a, 6b) and which are each between a locking position (8.1) in which the respective securing means (7) secure the wall element (2) on its free wall surface opposite the formwork table (4). overlaps and an unlocking position (8.2), in which the respective securing means (7) completely releases the free wall surface of the wall element (2), are adjustably mounted on the edge formwork elements (6, 6a, 6b).

Description

The invention relates to a holding device for fixing concrete components in a mold for laying concrete wall elements in a formwork trough. The holding device has a formwork table forming the bottom of the formwork trough, which can be rotated from a filling position for introducing fresh concrete into the formwork trough, into an inverted ejection position for the wall element in hardened concrete. The holding device has several edge formwork elements arranged on the formwork table, which are arranged sealed against one another and form a peripheral edge closure of the formwork trough, so that the edge formwork elements specify an inner and/or outer contour of the wall element to be manufactured and are in the filling position of the wall element during manufacture formwork table keep the fresh concrete in the formwork trough.

the EP 1 974 883 B1 describes a device suitable for the precise positioning of edge shuttering profile elements on a shuttering table for the production of precast concrete parts, comprising edge shuttering profile elements in which permanent magnet bodies that can be activated by a cylindrical push button are integrated, and a program-controlled robot with a gripper head with two gripper tongs for gripping and setting down each with a profile element and with an integrated setting tool for pressing down the respective push button and thus activating the associated permanent magnet body, each gripping tongs consisting of two prism-shaped gripper jaws for centering gripping of at least one cylinder head protruding from the top of the edge-stripping profile elements and that the distance from the center of the cylindrical Snap fasteners from the adjacent front end is the same for all edge shuttering profile elements.

the DE 10 2013 108 792 B4 describes a formwork device for the production of recesses in precast concrete parts with core elements that define the inner contour of the respective recess, the core elements being designed in two parts and each consisting of an elongate support and positioning element that does not form the inner contour of the respective recess with integrated permanent magnet bodies and a strip-shaped, which Inner contour of the respective recess forming Randabschalelement exist, which is on its side directed into the recess via connecting elements releasably fixed to the support and positioning element, wherein the connecting elements consist of clamps or are magnetically fixable.

the WO 2018/171893 A1 describes a device for fixing concrete wall elements in formwork on a production table, in particular for the production of double-wall elements, the formwork having formwork elements that can be fixed on the production table, and at least one retaining bolt being arranged in each of the formwork elements, which is in a plane parallel to the production table can be displaced from a retracted position into an advanced fixing position in which its free end protruding from the edge formwork element engages in the concrete wall element in a form-fitting manner.

The object of the invention is to provide a holding device for fixing concrete components in a mold in which a wall element arranged in a formwork trough in hardened concrete is particularly advantageously secured against accidental falling out when the wall element is in an inverted ejected position is and can be released for ejection particularly advantageous.

The object is achieved according to the invention by a holding device for fixing concrete components in a mold for horizontal production of wall elements made of concrete in a formwork trough, having a formwork table forming the bottom of the formwork trough, which can be rotated from a filling position for introducing fresh concrete into the formwork trough, into an inverted ejection position for the wall element in hardened concrete, and having several edge formwork elements arranged on the formwork table, which are arranged sealed against one another and form a peripheral edge closure of the formwork trough, so that the edge formwork elements specify an inner and/or outer contour of the wall element to be manufactured and keep the fresh concrete in the formwork trough during production in the filling position of the formwork table, with several securing means distributed over the peripheral edge of the formwork trough, which are positioned on the tops of the edge formwork elements t and which are adjustably mounted on the edge formwork elements between a locking position, in which the respective securing means overlaps the wall element on its free wall surface opposite the formwork table, and an unlocking position, in which the respective securing means completely releases the free wall surface of the wall element.

Holding devices for fixing concrete components in a mold for laying concrete wall elements in a formwork trough can be used in precast concrete works. The holding devices for fixing concrete components in a mold, which are also used, among other things, as formwork devices can be used in manual manufacturing processes, in partially automated or fully automated manufacturing processes. The formwork devices are also referred to, among other things, as pallets, which are particularly suitable for being able to be moved from one work station to the next work station in an automated production plant.

In various production processes, it is necessary to turn a wall element prefabricated in the formwork trough, which is then already in the form of hardened concrete, so that the hardened wall element can be fed to a second formwork trough, specifically in an upside-down position, i.e. in particular in a position turned by 180 degrees Orientation of the prefabricated wall element. This can, for example, be the production of double wall elements, in which a prefabricated first wall element in hardened concrete, which forms one side of the double wall element, is brought in a turned orientation to a second wall element, which is still unfinished as fresh concrete, leaving a gap to attach the first wall panel to the second wall panel. Here, the prefabricated first wall element is permanently connected to the second wall element by curing of the fresh concrete of the second wall element, with the space in the double wall element being retained. The prefabricated double wall element can then be joined to other double wall elements on site and the gaps filled with in-situ concrete.

The formwork trough forms a mold into which the fresh concrete is poured in order to produce the desired wall element. Use it to create wall elements of different designs can be flexibly reconfigured. For this purpose, the bottom of the formwork trough forms a preferably flat formwork table on which edge formwork elements can be attached or placed, which define the contour for the desired wall element and secure the fresh concrete poured into the formwork trough from flowing out of the formwork trough. The edge formwork elements can be permanently installed edge formwork elements on at least one side edge of the formwork table. As an alternative or in addition to permanently installed edge formwork elements, the edge formwork elements can also be flexibly attachable edge formwork elements, which can be connected to the formwork table in a lockable and detachable manner. Such flexibly attachable edge formwork elements can be magnet-integrated edge formwork elements, for example. As an alternative or in addition to permanently installed edge formwork elements or flexibly attachable edge formwork elements, the edge formwork elements can also be fixed or flexibly attachable inner edge formwork elements. These inner edge formwork elements can define recesses in the wall element to be manufactured, such as windows or doors. The inner edge formwork elements can, for example, according to DE 10 2013 108 792 B4 be trained.

The formwork table is rotatably mounted in such a way that the formwork table can be turned from a filling position for introducing fresh concrete into the formwork trough into an inverted ejection position for the hardened wall element in hardened concrete. The formwork table can in particular be turned by 180 degrees, so that the hardened wall element lying on the formwork table can be turned upside down, ie brought into an upside-down orientation.

A turning system can be used to turn the formwork table. The turning system can have a portal-like basic structure with, for example, opposite rotary bearings on which the formwork table is mounted so that it can rotate or pivot about a central axis. Alternatively, the formwork table can also be pivoted about a pivot axis extending along a side edge of the circuit table, for example on a frame. The reversible formwork table can also be referred to as a folding pallet.

In a typical structure of the formwork trough, several edge formwork elements are arranged on the formwork table. For example, one edge formwork element or several edge formwork elements can be permanently installed on one side edge of the formwork table or on two two side edges of the formwork table arranged adjacently via a corner region. Depending on the size and the individual contour of the wall element to be manufactured, further edge formwork elements can be flexibly attachable edge formwork elements, which can be connected to the formwork table in a lockable and detachable manner. Such flexibly attachable edge formwork elements can, for example, be magnet-integrated edge formwork elements, as has already been described. These are also referred to as formwork magnets, among other things.

A frame of several edge formwork elements configured according to the size and shape of the wall element to be manufactured form a peripheral edge closure of the formwork trough, arranged sealed against one another. Sealing is only necessary to such an extent that it is ensured that the liquid fresh concrete does not escapes from the formwork trough in an undesired manner, ie flows out.

Accordingly, the edge formwork elements can specify an outer contour of the wall element to be manufactured and can hold the fresh concrete in the formwork trough during manufacture in the filling position of the formwork table. The edge formwork elements can also specify the inner contours of the wall element to be manufactured, such as windows, doors and other functional openings, such as ducts or shafts.

In order to turn the hardened wall element into its ejected position, the hardened wall element contained therein must be secured while the formwork table is being rotated so that it does not fall out of the formwork trough at an undesirable time due to gravity alone. Until now, mostly retaining rods have been used for this purpose, which are supported on the very outer edge sections of the formwork table. These handrails are pushed in or set manually to the appropriate position and then mechanically and/or automatically hydraulically braced. The manual work in this process requires considerable physical exertion, since the handrails have to be very solid due to the unfavorable lever ratios. The weights of the handrails are only to be handled with the appropriate work aids and guides. The work processes are time-consuming and affect the overall performance of the production plant. Particularly in cases where relatively small wall elements are produced on a relatively large formwork table, resulting in a relatively small formwork trough, there are very unfavorable leverage conditions, since the retaining rods start from the outer edges of the large formwork table have to reach very far to the edge sections of the small wall element or the relatively small formwork trough.

In order to be able to replace these holding rods, it has already been proposed to provide holding bolts which extend in a form-fitting manner into the end faces of the wall element in order to secure the wall element against unwanted falling out. However, the wall elements produced then have recesses corresponding to the retaining bolts on their end faces. Such recesses are actually not desirable in the product of the wall element and can possibly have a negative effect on the strength properties of the wall element.

This is where the invention comes in and proposes several securing means that are distributed over the peripheral edge closure of the formwork trough and that are positioned on the tops of the edge formwork elements. For example, in the case of a substantially rectangular wall element, at least one securing means can be provided on at least one side edge, for example on two side edges, in particular two opposite side edges or on any side edges, such as on each of the four side edges of the wall element. Depending on the size and weight of the wall element, however, two or more securing means can also be arranged on each side edge. A plurality of securing means can in particular be arranged at equal distances from one another.

Each securing means is between a locking position, in which the securing means overlaps the wall element on its free wall surface opposite the formwork table, and an unlocking position, in which the Securing means the free wall surface of the wall element fully releases, adjustable mounted on the edge formwork elements. The securing means are therefore not supported on the outer edges of the formwork table, but directly on the edge formwork elements. The edge formwork elements determine the contour of the wall element to be manufactured and accordingly the securing means according to the invention are always supported on the edge formwork elements close to the contour of the wall element to be manufactured. The securing means can thus be made very compact. Since the securing means are mounted on the edge formwork elements, the securing means can be moved together with these edge formwork elements, for example in the case of flexibly attachable edge formwork elements, in particular magnet-integrated edge formwork elements, if a wall element of a different size is produced in a second production run or shape is to be manufactured.

In the locking positions of the securing means, the wall element is retained in its inverted ejected position by the securing means in the formwork trough, i.e. the wall element rests on the securing means and the wall element is thus retained in the formwork trough.

In the unlocking positions of the securing means, the wall element is no longer retained in the formwork trough by the securing means in its inverted ejected position, i.e. the wall element can no longer be supported on the securing means since the securing means are withdrawn, and the wall element is thus released from the formwork trough, ie the wall element can become detached from the formwork trough. In general, the ejection process will take place in such a way that the wall element, which located in the formwork trough and held in the locking positions by the securing means, is turned over so that the formwork trough is arranged over the wall element. The wall element, which is already in the form of hardened concrete, is then placed or placed on a second formwork trough, in which there is a second wall element in fresh concrete. For this purpose, spacers and/or built-in parts are generally provided, which keep the hardened wall element, which is present as ready-mixed concrete, at a predefined distance from the fresh concrete. After the cured wall element, which is available as ready-mixed concrete, has been placed on the second wall element in fresh concrete by means of the spacers or built-in parts, the securing means are moved from their locking positions to their unlocking positions. The formwork trough can then be removed upwards, as a result of which the wall element is detached from the formwork trough and the hardened wall element, which is present as ready-mixed concrete, remains on the spacers. The wall element is ejected by pulling the formwork trough upwards from the wall element.

Since the securing means overlaps the hardened wall element from the outside, a minimal overlap is sufficient for a form-fit securing of the wall element. This is very advantageous, for example, in the production of insulated or multi-layer double walls. Another advantage of the minimal overlap is that interfering edges from reinforcement, spacers and built-in parts do not have to be taken into account. The wall elements can thus be manufactured in higher quality.

Accordingly, the respective securing means can be designed, in its locking position, only the wall element to overlap in an outer edge area or inner edge area, whereby the width of the overlapping area of locked securing means and wall element is smaller than the thickness of the wall element, in particular the wall element in the overlapping area has no built-in parts, spacers, reinforcements and/or other elements with projecting edges.

When using the support rods known from the prior art, which are supported on the very outer edge sections of the formwork table, these support rods have to reach far beyond the wall element due to the prevailing force and leverage conditions, i.e. overlap the wall element very far, in order to ensure a good hold to be able to ensure. However, the retaining rods, which reach far beyond the wall element, must not affect or damage built-in parts arranged in the wall element, such as spacers, reinforcements and/or other elements with projecting edges. For this reason, these handrails cannot be positioned arbitrarily, or when configuring the installation positions of the built-in parts, care must be taken to ensure that there is sufficient space to be able to position the handrails as required. All of these problems do not exist if the securing means, as proposed in the embodiment mentioned, are designed to overlap the wall element only in an outer edge area or inner edge area in their locking positions, with the width of the overlapping area of the locked securing means and wall element being smaller than that Thickness of the wall element, in particular the wall element in the overlapping area has no built-in parts, spacers, reinforcements and/or other elements with projecting edges.

The respective securing means can be formed by a rigid plate which extends with its main planes at least essentially parallel to the free wall surface of the wall element, the rigid plate being mounted in a form-fitting manner perpendicular to the main planes on an edge formwork element.

The rigid plate represents an at least essentially cuboid body, the width and depth of which is several times greater than the height, ie the thickness of the plate. Preferably, the panel is wider than it is deep. In this respect, the panel can extend with its width, ie with its greatest longitudinal extent, along, ie parallel to, the longitudinal extent of the edge formwork element assigned to it. It is sufficient for the panel if it is only slightly larger than the width of the associated edge formwork element. The panel can be adjustably guided with its opposite outer edge regions, which limit the width of the panel, on the associated edge formwork element. The main planes of the slab are determined by the largest side surfaces of the slab and result from the areas that span the width and depth of the slab. The plate thus extends essentially parallel to the upper surfaces of the associated edge formwork element or parallel to the free wall surface of the wall element. In the orientation in which the fresh concrete is poured into the formwork trough, the free wall surface of the wall element to be manufactured and the slab lie in a substantially horizontal plane. Due to the positive mounting of the rigid panel perpendicular to the main planes on the edge formwork element, the rigid panel is in the ejection direction of the wall element, i.e. in the vertical Direction of gravity, positively fixed. However, an adjustment of the rigid plate in a direction perpendicular to the ejection direction is still possible, so that the rigid plate can be moved between the locked position and the unlocked position. The movement of the rigid panel between the locked position and the unlocked position may be a linear movement. If necessary, the movement can also have a rotating movement component.

In addition to its form-fitting mounting perpendicular to its main planes, the rigid panel can also be held in a direction of movement parallel to its main planes in its respective locking position by friction on an edge formwork element.

A frictional connection in a direction of movement parallel to their main planes in their respective locking position can ensure that the rigid plate remains in its locking position when it has been brought into the locking position, in particular actively. Due to such a frictional connection, the rigid plate can be prevented from unintentionally releasing itself from its locked position. In other words, with such a frictional connection, a minimum force is required in order to be able to move the rigid plate out of its locked position.

At least one of the edge formwork elements can be designed as a magnet-integrated edge formwork element, which has at least two magnets that can be adjusted within the edge formwork element between an activation position and a deactivation position be actuated by a switching means, which has a recess in the activation position of the magnet, wherein the securing means or the rigid plate is adapted in its thickness to the size of the recess in the activation position of the magnet and between two recesses of two directly adjacent switching means of the at least one magnet-integrated Edge formwork element is guided in an adjustment between its locked position and its unlocked position.

The switching means already present in a known manner on the magnet-integrated edge formwork elements can thus be used as fastening means and/or guide means in order to be able to store or fasten the respective securing means, in particular the rigid plate, on the magnet-integrated edge formwork element. Thus, separate storage means and/or fastening means for the respective securing means, in particular the rigid plate, can be omitted. The minimum force required to move the switching means from their activation positions to their deactivation positions is significantly greater, for example at least twice greater, than the weight acting on the respective securing means, in particular the rigid plate, which is caused by the wall element resting on the securing means or the rigid plates is introduced into the switching means. Depending on the minimum force that is structurally specified for moving the switching means from their activation positions to their deactivation positions and depending on the mass of the individual wall element, a minimum number of securing means or rigid plates can be determined, which is required for securely holding the respective wall element in the formwork trough .

At least one of the edge formwork elements can be designed as an edge formwork element that is rigidly connected to the formwork table and has at least two spaced-apart guide grooves on its upper side, with the securing means or the rigid plate being adapted in thickness to the size of the guide grooves of the rigid edge formwork Elements is adapted and is guided between the guide grooves in an adjustment between its locked position and its unlocked position.

In the case of rigid edge formwork elements, there are no switching devices. Therefore, the rigid edge formwork elements can be equipped with special guide grooves in which the respective securing means, in particular the rigid plate, are mounted and/or fastened analogously to the switching means of the magnet-integrated edge formwork elements.

The respective securing means can be mounted in a drive device that is separate from the edge formwork elements and can be releasably attached to one of the edge formwork elements in an adjustment direction between its locked position and its unlocked position in the drive device.

In principle, each securing means for manual insertion and manual adjustment can be mounted and/or fastened to the respective edge formwork element.

However, in order to also be able to carry out automated production with the holding devices or formwork devices according to the invention, a drive device separate from the edge formwork elements can be used for each securing means. The drive unit can be attached to the respective edge formwork element and also detached from it again will. In this respect, the drive unit forms a fastening means in order to be able to attach the respective securing means or the respective rigid plate to the edge formwork element. In addition, the drive unit is designed to be able to move the securing means or the rigid plate back and forth automatically between its locked position and its unlocked position.

The drive device can have a magnet holder that is designed to temporarily fix the drive device to one of the edge formwork elements. The magnet holder can be triggered manually or automatically, for example electromagnetically.

The drive unit can include a gear and an electric motor, which automatically adjusts the securing means, which is adjustably mounted in the drive unit, between its locked position and its unlocked position via the gear. The motor can be controlled electrically. The motor can in particular be an electric motor. The transmission can have a spindle drive, which converts the rotational drive movement of the motor shaft into a linear output movement, which automatically moves the securing means or the rigid plate between the locked position and the unlocked position.

The drive unit can include an electrical control device for controlling the motor and a wireless signal receiver that is designed to receive a switching signal from the environment, the electrical control device being configured to control the motor according to the signal as a function of the signal received by the wireless signal receiver.

Several drive units can include electrical control devices and/or wireless signal receivers, which are coordinated with one another in such a way that all drive units or at least a subgroup of several drive units can be controlled by the same signal, in particular by the same signal the several drive units can be activated at the same time in order to protect the safety means or to automatically move the rigid plate in a coordinated manner between their locking positions and their unlocking positions.

The drive unit can have a rechargeable electrical energy store which is designed to supply the motor, the electrical control device and/or the wireless signal receiver with electrical energy.

The rechargeable electrical energy store can include an electrical accumulator or a plurality of electrical accumulators.

Instead of using one or more electrical accumulators, the motor, the electrical control device and/or the wireless signal receiver can optionally also be supplied with electrical energy, for example directly from an energy network, via electrical connecting lines, i.e. wired, from outside the drive unit.

The several edge formwork elements arranged on the formwork table can form a predefined spacing grid formed by similar projections and/or recesses on the edge formwork elements and the securing means can be mounted on the edge formwork elements in accordance with this spacing grid.

The similar projections and/or recesses on the edge formwork elements can be formed, for example in the case of magnet-integrated edge formwork elements, by the switching means of the magnet-integrated edge formwork elements.

Especially in the automated variants of the holding devices according to the invention, such predefined distance grids can be used to automatically place the securing means or the rigid plates, for example program-controlled by a robot controller and a robot, at the desired positions on the edge formwork elements or from there automatically to them remove. For this purpose, for example, a robot can have a gripper which can automatically grip the securing means, the rigid panels and/or the drive units and automatically position them on the edge formwork elements.

At least one of the securing means can have at least one fastening means which is designed for detachably fastening an accessory to the securing means.

The fastening means can, for example, comprise a threaded hole or a plurality of threaded holes in the securing means or in the rigid plate. Alternatively, the fastening means can comprise a threaded bolt or several threaded bolts on the securing means or on the rigid plate.

Concrete exemplary embodiments of the invention are explained in more detail in the following description with reference to the attached figures. Specific features of these exemplary embodiments can, independently of the specific context in which they are mentioned, optionally also viewed individually or in other combinations, represent general features of the invention.

Fig. 1

eine perspektivische Darstellung eines Schalungstisches in der teilweise geschwenkten Lage, mit einer Schwenkvorrichtung und einem zweiten Schalungstisch,

Fig. 2

eine perspektivische Darstellung eines magnetintegrierten RandschalungsElements mit einem eingeschobenen Sicherungsmittel,

Fig. 3

eine perspektivische Darstellung eines festen Randschalungs-Elements mit Haltern, an denen das Sicherungsmittel gehalten ist,

Fig. 4

eine Seitenansicht eines starr mit dem Schalungstisch verbundenen Randschalungs-Elements mit einem eingeschobenen Sicherungsmittel,

Fig. 5

eine perspektivische Darstellung eines Antriebsgeräts mit dem Sicherungsmittel an einem magnetintegrierten Randschalungs-Element,

Fig. 6

eine Seitenansicht des Antriebsgeräts gemäß Fig. 5 mit dem Sicherungsmittel an dem magnetintegrierten Randschalungs-Element,

Fig. 7

eine schematische Darstellung des Antriebsgeräts gemäß Fig. 5 mit einem elektrischen Motor, einem Getriebe, einer Steuereinrichtung und einem drahtlosen Signalempfänger,

Fig. 8

eine gewendete Seitenansicht des Schalungstisches mit einem Sicherungsmittel,

Fig. 9

eine perspektivische Darstellung eines Schalungstisches mit drei beispielhaften Anwendungen eines Sicherungsmittels zur Fixierung verschiedener Anbauteile,

Fig. 10

eine perspektivische Darstellung einer ersten Anwendung, bei der eine Innenschalung über das Sicherungsmittel auf dem Schalungstisch fixiert ist,

Fig. 11

eine Seitenansicht der ersten Anwendung gemäß Fig. 10,

Fig. 12

eine perspektivische Darstellung einer zweiten Anwendung, bei der ein niedriges Schalbrett über eine manuell lösbare Halteklammer an dem Sicherungsmittel fixiert ist,

Fig. 13

eine Seitenansicht der zweiten Anwendung gemäß Fig. 12,

Fig. 14

eine perspektivische Darstellung einer dritten Anwendung, bei der ein hohes Schalbrett an dem Sicherungsmittel angeschraubt ist, und

Fig. 15

eine Seitenansicht der dritten Anwendung gemäß Fig. 14.

Show it:

1

a perspective view of a formwork table in the partially pivoted position, with a pivoting device and a second formwork table,

2

a perspective view of a magnet-integrated edge formwork element with an inserted securing device,

3

a perspective view of a fixed edge formwork element with holders on which the securing device is held,

4

a side view of an edge formwork element rigidly connected to the formwork table with an inserted securing device,

figure 5

a perspective view of a drive unit with the securing means on a magnet-integrated edge formwork element,

6

a side view of the drive unit according to FIG figure 5 with the security on the magnet-integrated edge formwork element,

7

a schematic representation of the drive unit according to FIG figure 5 with an electric motor, a gearbox, a control device and a wireless signal receiver,

8

a turned side view of the formwork table with a securing device,

9

a perspective view of a formwork table with three exemplary applications of a securing means for fixing various attachments,

10

a perspective view of a first application in which an inner formwork is fixed on the formwork table via the securing means,

11

according to a side view of the first application 10 ,

12

a perspective view of a second application, in which a low formwork board is fixed to the securing means via a manually detachable retaining clip,

13

a side view of the second application according to FIG 12 ,

14

a perspective view of a third application, in which a high shuttering board is screwed to the securing means, and

15

a side view of the third application according to FIG 14 .

In the 1 a holding device 1 for laying wall elements 2 made of concrete in a formwork trough 3 is shown. The holding device 1 has a formwork table 4 which forms the bottom of the formwork trough 3 and which can be rotated from a filling position for introducing fresh concrete into the formwork trough 3 into an inverted ejection position ( 8 ) for wall element 2 in hardened concrete. The formwork trough 3.1 is located in 1 in the filling position. The ejection position is in 8 represented by the formwork trough 3.3, which is in an upside down position to the formwork trough 3.1. In 1 the formwork trough 3.2 is in an intermediate position in which it is shown half-turned.

For the reversible storage of the formwork trough 3, the formwork table 4 is mounted on a portal system 5 so that it can be turned. The complete formwork table 4 can be turned automatically by means of the portal system 5 .

A plurality of edge formwork elements 6 are arranged on the formwork table 4, which are arranged sealed against one another and form a peripheral edge closure of the formwork trough 3, see above that the edge formwork elements 6 specify an inner and/or outer contour of the wall element 2 to be manufactured and hold the fresh concrete in the formwork trough 3 during manufacture in the filling position of the formwork table 4, with several securing means 7 distributed over the peripheral edge of the formwork trough 3 , which are positioned on top of the edge formwork elements 6.

The securing means 7 are each between a locking position 8.1, in which the respective securing means 7 overlaps the wall element 2 on its free wall surface 2a opposite the formwork table 4, and an unlocking position 8.2, in which the respective securing means 7 completely releases the free wall surface 2a of the wall element 2. adjustable on the edge formwork elements 6, as is particularly the case in 4 is shown.

In the case of the illustrated exemplary embodiments, the respective securing means 7 is formed by a rigid plate 7a, which extends with its main planes at least essentially parallel to the free wall surface 2a of the wall element 2, with the rigid plate 7a perpendicular to the main planes being form-fitting to an edge formwork element 6 is stored, as is particularly the case in 2 and 3 is shown.

The rigid plate 7a represents an at least substantially cuboid body, as is shown in particular in 2 is shown, whose width B and depth T is several times greater than the height H, ie the thickness of the plate 7a. Preferably, the plate 7a has a greater width B than it is deep. In this respect, the panel 7a can extend with its width B, ie with its greatest longitudinal extent, ie parallel to the longitudinal extent of the edge formwork element assigned to it 6, as in 2 shown extend.

In addition to its form-fitting mounting perpendicular to its main planes, the rigid panel 7a is also frictionally held in a direction of movement R parallel to its main planes in its respective locking position on an edge formwork element 6 .

In the embodiment according to 2 the edge formwork element 6 is designed as a magnet-integrated edge formwork element 6a, which has at least two inside the edge formwork element 6a between an activation position A and a deactivation position D ( 4 ) has adjustably mounted magnets 9, which are each actuated by a switching means 10, which has a recess in the activation position A of the magnet 9, the securing means 7 or the rigid plate 7a in its thickness, i.e. the height H, being adapted to the size G of the Is adapted to the return in the activation position A of the magnet 9 and between two returns of two immediately adjacent switching means 10 of the at least one magnet-integrated edge formwork element 6a in an adjustment direction R between its locked position 8.1 and its unlocked position 8.2.

In the embodiment according to 3 the edge formwork element 6 is designed as a rigid edge formwork element 6b connected to the formwork table 4, which has at least two guide grooves 11 spaced apart from one another on its upper side, the securing means 7 or the rigid plate 7a increasing in thickness, ie the height H the size of the guide grooves 11 of the rigid edge formwork element 6b is adjusted. Between the guide grooves 11 is the securing means 7 or the rigid plate 7a in the adjustment direction R between its locked position 8.1 and its unlocked position 8.2.

As in Figures 5 to 8 is shown, in one embodiment variant, the respective securing means 7 can be mounted in a drive device 12 that is separate from the edge formwork elements 6 in an automatically adjustable manner. The drive unit 12 can optionally be releasably attached to one of the edge formwork elements 6, 6a, 6b. By means of the drive device 12, the securing means 7 or the rigid plate 7a can be automatically locked or unlocked in an adjustment direction R between the locking position 8.1 and the unlocking position 8.2.

As in particular in 6 As can be seen, the drive device 12 has a magnet holder 13 which is designed for temporarily fixing the drive device 12 to the edge formwork elements 6, 6a.

The drive unit 12 includes a gear 14 and an electric motor 15, which via the gear 14 automatically adjusts the securing means 7, which is adjustably mounted in the drive unit 12, or the rigid plate 7a, between its locked position 8.1 and its unlocked position 8.2.

The drive unit 12 also includes an electrical control device 16 for activating the motor 15 and a wireless signal receiver 17, which is designed to receive a switching signal from the environment, with the electrical control device 16 being set up as a function of the signal received by the wireless signal receiver 17 Motor 15 to control the signal accordingly.

The drive unit 12 also has a rechargeable electrical energy store 18 which is designed to supply the motor 15, the electrical control device 16 and/or the wireless signal receiver 17 with electrical energy.

As in 9 is shown, can be provided on the formwork table 4 various further developed securing means 7 for fixing different attachments 19.1, 19.2, 19.3.

As in 10 and 11 is shown in more detail, at least one of the securing means 7 or the rigid plates 7a can have at least one first fastening means 20.1, which is designed for releasably fastening a first add-on part 19.1 to the securing means 7 or to the rigid plate 7a. The first attachment 19.1 can, for example, be a recess body, an inner formwork or an installation box, for example for electrical, heating and/or ventilation components. As shown, the first fastening means 20.1 can be formed by a clamping claw.

As in 12 and 13 is shown in more detail, at least one of the securing means 7 or the rigid plates 7a can have at least one second fastening means 20.2, which is designed for releasably fastening a second add-on part 19.2 to the securing means 7 or to the rigid plate 7a. The second attachment 19.2 can be, for example, a low shuttering board, which is fixed to the securing means 7 as a second fastening means 20.2 via a manually detachable retaining clip.

As in 14 and 15 is shown in more detail, at least one of the securing means 7 or the rigid plates 7a have at least one third attachment means 20.3, which is designed for releasably attaching a third add-on part 19.3 to the securing means 7 or to the rigid plate 7a. The third add-on part 19.3 can be, for example, a high shuttering board, which is fixed to the securing means 7 as a third fastening means 20.3 by means of a screwed-on, rigid angle plate.

Claims (13)

Holding device for fixing concrete components in a mold for horizontal production of wall elements (2) made of concrete in a formwork trough (3), having a formwork table (4) forming the bottom of the formwork trough (3) which consists of a filling layer for introducing fresh concrete into the formwork trough (3), in an inverted ejection position for the wall element (2) in hardened concrete, and having several edge formwork elements (6, 6a, 6b) arranged on the formwork table (4), which are arranged sealed against one another and have a peripheral edge termination of the Form the formwork trough (4) so that the edge formwork elements (6, 6a, 6b) define an inner and/or outer contour of the wall element (2) to be manufactured and during production in the filling position of the formwork table (4) the fresh concrete in the Keep the formwork trough (3), characterized by a plurality of securing means (7) distributed over the peripheral edge of the formwork trough (3) and located on the top n of the edge formwork elements (6, 6a, 6b) and which are positioned between a locking position (8.1) in which the respective securing means (7) overlaps the wall element (2) on its free wall surface opposite the formwork table (4) and a Unlocking position (8.2), in which the respective securing means (7) completely releases the free wall surface of the wall element (2), are adjustably mounted on the edge formwork elements (6, 6a, 6b). Holding device according to Claim 1, characterized in that the respective securing means (7) is designed to overlap the wall element (2) in its locking position (8.1) only in an outer edge area or inner edge area, the width of the overlapping area of the locked securing means (7 ) and wall element (2) is smaller than the thickness of the wall element (2), in particular the wall element (2) has no built-in parts, spacers, reinforcements and/or other elements with projecting edges in the overlapping area. Holding device according to Claim 1 or 2, characterized in that the respective securing means (7) is formed by a rigid plate (7a) which extends with its main planes at least substantially parallel to the free wall surface of the wall element (2), the rigid plate (7a) is mounted perpendicular to the main levels in a form-fitting manner on an edge formwork element (6, 6a, 6b). Holding device according to Claim 3, characterized in that the rigid plate (7a), in addition to its form-fitting mounting perpendicular to its main planes, is also frictionally locked in a direction of movement parallel to its main planes in its respective locking position (8.1) on an edge formwork element (6, 6a, 6b) is held. Holding device according to one of Claims 1 to 4, characterized in that at least one of the edge formwork elements (6, 6a, 6b) is designed as a magnet-integrated edge formwork element (6a) which has at least two magnets (9) which can be adjusted within the edge formwork element (6a) between an activation position (A) and a deactivation position (D), which are each actuated by a switching means (10) which is activated in the activation position (A) of the magnet (9) has a recess, the securing means (7) or the rigid plate (7a) being adapted in its thickness to the size (G) of the recess in the activation position (A) of the magnet (9) and between two recesses of two directly adjacent switching means (10) of the at least one magnet-integrated edge formwork element (6a) is guided in an adjustment direction (R) between its locked position (8.1) and its unlocked position (8.2). Holding device according to one of Claims 1 to 5, characterized in that at least one of the edge formwork elements (6, 6a, 6b) is designed as an edge formwork element (6b) which is rigidly connected to the formwork table (4) and has at least has two guide grooves (11) spaced apart from one another, the securing means (7) or the rigid plate (7a) being adapted in thickness to the size of the guide grooves (11) of the rigid edge formwork element (6b) and between the guide grooves (11) is guided in an adjustment direction (R) between its locked position (8.1) and its unlocked position (8.2). Holding device according to Claims 1 to 6, characterized in that the respective securing means (7) is in a drive device (12) separate from the edge formwork elements (6, 6a, 6b), which can be optionally mounted on one of the edge formwork elements (6, 6a, 6b) is to be detachably fastened, is mounted in the drive unit (12) so that it can be adjusted automatically in an adjustment direction (R) between its locked position (8.1) and its unlocked position (8.2). Holding device according to Claim 7, characterized in that the drive device (12) has a magnet holder (13) which is designed for temporarily fixing the drive device (12) to one of the edge formwork elements (6, 6a, 6b). Holding device according to Claim 7 or 8, characterized in that the drive unit (12) comprises a gear (14) and an electric motor (15) which, via the gear (14), the securing means (7) adjustably mounted in the drive unit (12) between its locked position (8.1) and its unlocked position (8.2) automatically adjusted. Holding device according to Claim 9, characterized in that the drive unit (12) comprises an electrical control device (16) for controlling the motor (15) and a wireless signal receiver (17) which is designed to receive a switching signal from the environment, the electrical control device (16) is set up to control the motor (15) in accordance with the signal as a function of the signal received by the wireless signal receiver (17). Holding device according to claim 9 or 10, characterized in that the drive unit (12) is a rechargeable electrical energy store (18) which is designed to supply the motor (15), the electrical control device (16) and/or the wireless signal receiver (17) with electrical energy. Holding device according to one of Claims 1 to 11, characterized in that the plurality of edge formwork elements (6, 6a, 6b) arranged on the formwork table (4) are formed by similar projections and/or recesses on the edge formwork elements (6, 6a, 6b) form a predefined spacing grid and the securing means (7) are mounted on the edge formwork elements (6, 6a, 6b) in accordance with this spacing grid. Holding device according to one of Claims 1 to 12, characterized in that at least one of the securing means (7) has at least one fastening means which is designed for detachably fastening an accessory to the securing means (7).

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