DK2934837T3

DK2934837T3 - DEVICE FOR MANUFACTURING A LARGE-FLATED, PRE-MANUFACTURED BEDROOM, SPECIFICALLY INCLUDING AT LEAST ONE CONCRETE LAYER

Info

Publication number: DK2934837T3
Application number: DK13818662.2T
Authority: DK
Inventors: Karl Friedrich Enderes; Erich Nussbaumer
Original assignee: Progress Holding Ag
Priority date: 2012-12-21
Filing date: 2013-12-16
Publication date: 2018-02-19
Also published as: CN105073360A; PL2934837T3; WO2014095025A3; EP2934837B1; AT513284B1; CN105073360B; AT513284A4; EP2934837A2; WO2014095025A2

Abstract

The invention relates to a device for producing a large-area, pre-fabricated wall part (2), in particular comprising at least one concrete layer (1), on a movable form pallet (3) having a turning device (4), which can be connected to the form pallet, for turning the form pallet (3), wherein the turning device (4) has a clamping device (5) having at least one holding element (6), wherein the holding element (6) is arranged around a swivel axis (8), which extends substantially parallel to a surface (7) of the form pallet (3), in a swiveling manner on the clamping device (5), wherein, by swiveling the holding element (6) around the swivel axis (8) thereof, one end (9) of the holding element (6) can be pressed on the pre-fabricated wall part (2), wherein the pre-fabricated wall part (2) can be fastened to the form pallet (3) in a position-stable manner, wherein, in order to fasten pre-fabricated wall parts (2) of differing thickness to the form pallet (3), the clamping device (5) is movably arranged on the turning device (4), wherein a distance (10) between the turning device (4) and the swivel axis (8), extending substantially perpendicular to the swivel axis (8), can be adjusted for the holding element (6).

Description

[0001] The invention relates to a device for producing a large-area prefabricated wall portion, in particular including at least one concrete layer, on a moveable mould pallet with a turning device which can be connected to the mould pallet for turning the mould pallet, wherein the turning device is equipped with a clamping device including at least one holding element, wherein the holding element is arranged on the clamping device pivotably about a pivot axis extending substantially parallel to a surface of the mould pallet, wherein by pivotal movement of the holding element about its pivot axis an end of the holding element can be pressed against the prefabricated wall portion, wherein the prefabricated wall portion can be fixed in a stable position on the mould pallet.

[0002] For producing a prefabricated wall portion for a prefabricated wall element including a multi-layered concrete element which has two concrete portions parallel to each other with a spacing, which are connected to each other via metallic reinforcements, it is already known to use a so-called turning device. This turning device is capable of rotating a mould pallet for a first prefabricated wall portion, on which a first concrete layer with protruding reinforcements is cast and then cured, by 180° after the curing. For this, the turning device can be connected to the mould pallet and can be lowered, raised and rotated by 180°. For connecting the turning device to the mould pallet, for example, pegs are provided which are capable of gripping the mould pallet. Moreover, such a turning device is equipped with a clamping device, which typically has several holding elements which can be inserted, from the side, just above the surface of the cured first concrete layer, in order to fix the cured concrete element or prefabricated wall portion on the mould pallet in a stable position, for example by pressing on, with the result that the prefabricated wall portion does not fall off the mould pallet after the rotation by 180°. The bracing of the prefabricated wall portion on the mould pallet by means of the holding elements can be effected hydraulically or pneumatically for example. The turning device can be moveable on a track with rails and can be moved to a point at which a second concrete layer with not yet cured concrete rests on a further mould pallet for a second prefabricated wall portion. By lowering of the turning device, the protruding reinforcement elements, pointing downwards, of the already cured first concrete layer of the first prefabricated wall portion can now partially penetrate the not yet cured concrete of the second concrete layer of the second prefabricated wall portion and thus produce the connection to the latter after curing of the concrete. The result forms a prefabricated wall element including the two connected prefabricated wall portions, which, after this prefabrication, can be cast on site and thus be finished as a prefabricated wall. The document EP 2 193 901 A1 discloses a device for producing a large-area prefabricated wall portion, according to the preamble of claim 1. A disadvantage of the known devices is the time-consuming manipulation of the holding elements, as the often manual installation and alignment as well as the removal of the holding elements requires a relatively long time, which slows down the production process. In addition, in recent years, much attention has been paid to energy savings, with the result that prefabricated wall elements including two outer concrete layers and, in between, a layer of insulating material (e.g. PU foam) are being produced more and more. The thickness of the insulating layer between the two concrete layers is to be variable depending on the desired insulating property of such a prefabricated wall element. The insulating layer is usually applied to the cured first concrete layer of the first prefabricated wall portion and then the holding elements are braced against the surface of the insulating layer, in order thus to fix the prefabricated wall portion on the mould pallet in a stable position. For the production of prefabricated wall portions of differing thicknesses, in particular because the insulating layers have differing thicknesses, additional adapters have been required until now in order to adapt the holding elements to the necessary wall thickness with and/or without insulation. In each case separate adapters are used for the required wall thicknesses or insulation thicknesses. This leads to time-consuming assembly and disassembly of the adapters in the case of changing wall thicknesses. In addition, for special insulating wall thicknesses, additional adapters are necessary and until now the total wall thickness has only been adjustable in a grid.

[0003] The object of the invention is to avoid the above-described disadvantages and to specify a device for producing a prefabricated wall portion on a moveable mould pallet that is improved compared with the state of the art. In particular, the production of prefabricated wall portions and prefabricated wall elements of differing thicknesses is to be made easier and the efficiency of the production process is to be increased.

[0004] This object is achieved according to the invention by the features of claim 1. Advantageous embodiments of the inventions are specified in the dependent claims.

[0005] According to the invention it is thus provided that for fixing prefabricated wall portions of differing thicknesses on the mould pallet the clamping device is arranged moveably on the turning device, wherein a spacing extending substantially perpendicularly to the pivot axis between the turning device and the pivot axis for the holding element is adjustable.

[0006] The holding elements are in each case arranged on the clamping device pivotably about a pivot axis. By pivotal movement of a holding element about its pivot axis, an end of the holding element is pressed against the surface of the prefabricated wall portion facing it, whereby the prefabricated wall portion can be fixed on the mould pallet in a stable position. Through a clamping device which is height-adjustable in relation to the turning device, it can thus be achieved that the pivot axes of the holding elements can be adjusted in a different vertical spacing relative to the turning device. This height-adjustability of the clamping device relative to the turning device thus makes it possible to fix prefabricated wall portions of differing thicknesses on the mould pallet by means of the clamping device. In particular it is thus possible to arrange insulating layers of differing thicknesses on a concrete layer of the prefabricated wall portion and to fix the entire prefabricated wall portion on the mould pallet.

[0007] The embodiment of the invention in which the clamping device is arranged on the turning device displaceably substantially perpendicularly to the surface of the mould pallet is therefore particularly advantageous. A height adjustment of the pivot axis for a holding element in relation to the [0008] surface of the mould pallet in a direction perpendicular to the surface is thereby achievable. Overall, the sequence of operations for fixing a prefabricated wall portion on the mould pallet can thus also be more ergonomically configured, as the usually heavy and unwieldy holding elements - which are, for example, approximately 30 kg in weight and approximately 2.8 m long - need not be removed and re-installed, but can be easily and ergonomically adjusted to the desired spacing relative to the surface of the mould pallet through the height adjustment.

[0009] The clamping device is preferably arranged to be displaceable steplessly. The height adjustment or the adjustment of the spacing between the turning device and the pivot axis can be effected by a drive, such as a spindle drive or a rack and pinion drive for example. It can thus be provided that the clamping device is moveable steplessly and/or in a drive-supported manner. Of course, a manual height adjustment can also be provided, however. It can also be provided that the height adjustment is effected controlled by data processing within an automated process.

[0010] In a preferred embodiment of the invention it can be provided that, arranged on the turning device, is at least one spacer for adjusting a spacing of the mould pallet relative to a second mould pallet which can be arranged at an abutment of the spacer, wherein the spacer is arranged moveably on the turning device, wherein an abutment spacing extending substantially perpendicularly to the pivot axis between the turning device and the abutment of the spacer is adjustable. The spacing between the two mould pallets arranged one above the other can be adjusted by such a height adjustment of the spacer in relation to the turning device. By means of the turning device, the mould pallet with the first prefabricated wall portion is turned by 180° and arranged above the second mould pallet, wherein spacers protrude from the turning device and abutments of the spacers are placed on the second, now lower, mould pallet. A height adjustment between the two mould pallets can thus be achieved by the spacers which can be extended out of the turning device. This makes it possible to produce prefabricated wall elements of differing thicknesses. The height adjustment of the spacer with respect to the turning device can preferably also be effected steplessly [0011] and/or in a drive-supported manner (e.g. spindle drive or rack and pinion drive), by the spacer being moveable steplessly and/or in a drive-supported manner. It can also be provided here that this height adjustment is effected controlled by data processing in an automated process. The height adjustment of the spacer in turn has the advantage of a more ergonomic sequence of operations, as, for the manufacture of prefabricated wall elements of differing thicknesses, the removal and installation of spacers of differing lengths and usually with a weight of several kilograms can be dispensed with.

[0012] The embodiment of the invention in which the spacer is arranged on the turning device displaceably substantially perpendicularly to the surface of the mould pallet is particularly advantageous. A height adjustment of the abutment of a spacer in relation to the surface of the mould pallet in a direction perpendicular to the surface is thereby achievable.

[0013] It can be particularly preferably provided that the spacing between the turning device and the pivot axis is adjustable independently of the abutment spacing between the turning device and the abutment of the spacer. In other words, the two height adjustments (height adjustment of the pivot axis with respect to the turning device and height adjustment of the abutment of the spacer with respect to the turning device) can be effected independently of each other. Of course, however, it can also be provided that both height adjustments are carried out to the same extent.

[0014] According to a further embodiment example it can be provided that the holding element is moveable from a release position to a holding position, wherein the holding element is arranged on the clamping device moveably with a translation movement, wherein preferably the holding element is moveable substantially parallel to the surface of the mould pallet. The holding elements can be inserted, from the side, just above the surface of the prefabricated wall portion (e.g. cured concrete layer and insulating layer arranged thereon), wherein an outer end of a holding-down device can be raised, for example by a pneumatic unit such as a pressurizable air hose. By being raised at its outer end, the holding element is pivoted about its pivot axis, whereby the end of the holding element which is located above the surface of the prefabricated wall portion is pressed against the prefabricated wall portion, whereby the prefabricated wall portion can be fixed on the mould pallet in a stable position.

[0015] A further aspect is provided by a device in which the holding element is of a substantially bar-shaped configuration, wherein the holding element is adapted to be bendable from a longitudinal position into a bent position.

When pushed out of the holding position into the release position, the holding elements can thereby be bent and thereby require less lateral space, as they do not protrude as far laterally beyond the clamping device as an unbent holding element. Whereas, due to space constraints, conventional, non-bendable, holding elements often have to be completely removed from the turning device and re-installed on the turning device to manufacture a further prefabricated wall portion, the proposed, bendable holding elements can remain on the turning device. A cumbersome handling of the holding elements, which are usually approximately 30 kg in weight and approximately 2.8 m long, is thereby dispensed with. In particular, with the proposed, bendable holding elements, the ergonomics of the sequence of operations can be increased and thus the health of the workers operating the turning device can be protected.

[0016] According to a preferred embodiment it can be provided that the holding element includes a holding portion and a bending portion, wherein the bending portion is bendable relative to the holding portion, wherein preferably the bending portion is arranged on the holding portion pivotably about a bending axis.

[0017] It can preferably be provided that the holding element can be secured in the longitudinal position and/or the bent position. Undesired pendular movements of the bent bending portion of the holding element can thereby be avoided. It can preferably be provided that the holding element includes a latching connection, wherein the bending portion can be secured relative to the holding portion by the latching connection. In a particular embodiment it can be provided that the latching connection includes at least one latching pin which is arranged on the bending portion and is preferably compression spring-loaded and at least one receiving means on the holding portion, which at least partially receives the latching pin, wherein the latching pin is moveable into the receiving means. The at least one latching pin can be arranged on or in the bending portion moveably along the bending portion.

[0018] In a preferred embodiment variant it can be provided that, for securing the holding element in the longitudinal position, the holding portion includes at least one bar having a receiving means for a latching pin which is moveable out of the bending portion into the receiving means, wherein preferably the bending axis is arranged spaced from an end of the bar that is towards the bending portion.

[0019] It can also be provided that the at least one latching pin is connected, preferably by way of a rod, to an actuating device arranged at one end of the bending portion, wherein the at least one latching pin is moveable by actuation of the actuating device. The actuating device can include a pulling handle, wherein the at least one latching pin is moveable by a pulling movement or a pushing movement on the pulling handle. The actuating device can also include a rotatably mounted rotational pin, wherein the at least one latching pin is moveable by rotation of the rotational pin.

[0020] Further details and advantages of the present invention are explained with reference to the following description of the figures. There are shown in:

Figs. 1a to 1c the production process of a double-layered prefabricated wall element with an internal insulating layer including two prefabricated wall portions,

Fig. 2a a finished prefabricated wall element with an internal insulating layer including two prefabricated wall portions,

Fig. 2b a finished prefabricated wall element without an internal insulating layer including two prefabricated wall portions,

Fig. 3a a front view of a proposed turning device which is connected to a mould pallet,

Fig. 3b a perspective top view of the arrangement of Fig. 3a,

Fig. 4a a front view of the arrangement of Fig. 3a during the turning above a second mould pallet,

Fig. 4b a perspective top view during the turning according to Fig. 4a,

Fig. 5a a front view of a turned turning device arranged on the second mould pallet,

Fig. 5b a bottom view of the arrangement of Fig. 5a,

Figs. 6 and 7 an example of the proposed height adjustment of the pivot axis of the holding elements with respect to the turning device for prefabricated wall portions of differing thicknesses,

Figs. 8 and 9 an example of the proposed height adjustment of spacers with respect to the turning device for prefabricated wall elements of differing thicknesses,

Figs. 10a to 10c the pushing of the holding elements from their release position into their holding position,

Figs. 11a to 11c the pushing of the holding elements out of their holding position into their release position in the turned state of the turning device,

Figs. 12a to 12c a possible embodiment of a proposed holding element in different views,

Fig. 13 a sectional view through the holding element of Fig. 12a in secured longitudinal position,

Fig. 14 a sectional view through the holding element of Fig. 12a in unlocked longitudinal position and

Figs. 15a to 15d detail views of a holding element during the transition from the longitudinal position to the bent position.

[0021] Fig. 1a shows different steps in the production of a first prefabricated wall portion 2 on a mould pallet 3 in a front view of the mould pallet 3. Spacers 24 for a reinforcement 25 are first inserted inside a mould frame formed by a pallet abutment 32 arranged on the surface 7 of the mould pallet 3 and a formwork component 23 arranged on the surface 7.

In a next step, the reinforcement 25 is inserted onto the spacers 24 and then a concrete layer 1 is introduced. An insulation 26 can be applied to the concrete layer 1, wherein the insulation 26 can have pre-drilled holes 27 for connecting bars 28 to be arranged therein. The holes 27 can, however, also be drilled when the insulation 26 is in the inserted state. Connecting bars 28 can then be introduced into the holes 27, which connecting bars are then used for connection to a further prefabricated wall portion 2’ (see Fig. 1b).

[0022] Fig. 1b shows different production steps of a second prefabricated wall portion 2’ which, in conjunction with the prefabricated wall portion 2 of Fig. 1a, forms a prefabricated wall element 33 (see Fig. 1c). According to the steps of Fig. 1a, spacers 24 and, thereon, a reinforcement 25 are in turn inserted inside a mould frame 32, 23. A second concrete layer T is then introduced.

[0023] Fig. 1c shows the connecting of the prefabricated wall portions 2, 2’ of Figs. 1a and 1 b to produce a double-layered prefabricated wall element 33 which, after this prefabrication, can be cast on site and thus finished as a prefabricated wall.

[0024] After the curing of the first concrete layer 1, the mould pallet 3 is raised with the aid of a turning device, not represented here, (see Fig. 3a), pivoted by 180° and lowered onto the second mould pallet 3’. The connecting bars 28, which protrude from the first prefabricated wall portion 2, penetrate the not yet cured second concrete layer 1 ’ of the second prefabricated wall portion 2’. After the curing of the second concrete layer T, the prefabricated wall element 33 finished in such a way can be raised from the lower mould pallet 3’ and stored, for example, in a warehouse.

[0025] Fig. 2a shows a front view of a prefabricated wall element 33 produced according to Figs. 1a to 1c. Fig. 2b shows a possible further prefabricated wall element 33, which has a different structure from the prefabricated wall element 33 of Fig. 2a. Here, an insulating layer is not provided between the two concrete layers 1, 1 ’ of the two prefabricated wall portions 2, 2’ and the spacing between the two concrete layers 1, 1 ’ is achieved by bent connecting bars 28 (e.g. by lattice girders).

[0026] Fig. 3a shows a front view of a proposed turning device 4 connected to a mould pallet 3 and Fig. 3b shows a perspective top view of this arrangement. The turning device 4 is connected to the mould pallet 3 by means of a connecting device 29, e.g. by bracing or by pegs protruding from the turning device 4 which grip the mould pallet 3. A first prefabricated wall portion 2 including a concrete layer 1 and an insulation 26 arranged thereon is arranged on a surface 7 of the mould pallet 3. The turning device 4 is equipped with a clamping device 5 which includes several holding elements 6 which are moveable with a translation movement substantially parallel to the surface 7 of the mould pallet 3 above the prefabricated wall portion 2. Each holding element 6 rests against a rod 31 of a clamping shoe 30, wherein the contact line between holding element 6 and rod 31 forms a pivot axis 8 for the holding element 6. By raising an outer end 34 of a holding element 6 (arrow 36), the holding element 6 can be pivoted about the pivot axis 8, with the result that one end 9 of the holding element 6 can be pressed against the prefabricated wall portion 2 (arrow 37), whereby the prefabricated wall portion 2 can be fixed in a stable position on the mould pallet 3.

[0027] The raising of the outer ends 34 of the holding elements 6 can be effected by a bracing unit 35 arranged on the clamping device 5, e.g. by air pressurization of an air hose resting against the outer ends 34.

[0028] In order to be able to fix prefabricated wall portions 2 of differing thicknesses on the mould pallet 3, a height adjustability of the clamping device 5 in relation to the [0029] turning device 4 is provided. The clamping device 5 can thus be extended out of the turning device 4, whereby a spacing 10 between turning device 4 and the pivot axes 8 can be adjusted for the holding elements 6.

[0030] In addition, the turning device 4 shown has height-adjustable spacers 11. The spacers 11 of the turning device 4 serve to adjust a spacing of the prefabricated wall portion 2 relative to a further prefabricated wall portion 2’ on a further mould pallet 3’ in the turned state of the mould pallet 3 (see e.g. Fig. 1c). Because the spacers 11 can be extended out of the turning device 4, different abutment spacings 13 between the turning device 4 and abutments 12 of the spacers 11 can be adjusted depending on the desired spacing.

[0031] In the example shown, both the height adjustment for the pivot axes 8 of the holding elements 6 and the height adjustment for the abutments 12 of the spacers 11 are realized by steplessly adjustable spindle units.

[0032] Fig. 4a shows the processes of turning the mould pallet 3 above the second mould pallet 3’ with the aid of a proposed turning device 4 in a front view and Fig. 4b shows a corresponding perspective top view.

[0033] Fig. 5a shows the mould pallet 3 after successful turning above the second mould pallet 3’ and Fig. 5b shows a corresponding bottom view of the arrangement of Fig. 5a. By means of the abutments 12 of the spacers 11, the turning device 4 with the mould pallet 3 connected thereon is deposited on the second mould pallet 3’.

[0034] Figs. 6 and 7 in each case show a proposed turning device 4 for the production of prefabricated wall portions 2 of differing thicknesses. The prefabricated wall portion 2 of Fig. 7 has a thicker insulation 26 compared with the prefabricated wall portion 2 of Fig. 6. Because the clamping device 5 is moveable relative to the turning device 4, the correspondingly required spacings 10 between the turning device 4 and the pivot axes 8 of the holding elements 6 can be correspondingly adapted in order to fix prefabricated wall portions 2 of differing thicknesses on the mould pallet 3. In order, accordingly, to be also able to produce differently required spacings between the mould pallets 3, 3’, it is additionally provided that the spacers 11 are likewise arranged moveably on the turning device 4. Correspondingly different abutment spacings 13 between the turning device 4 and the abutments 12 of the spacers 11 can thereby be adjusted.

[0035] Figs. 8 and 9 in each case show a proposed turning device 4 for the production of prefabricated wall elements 33 of differing thicknesses, wherein the prefabricated wall portions 2, 2’ are in each case constructed identically. In the prefabricated wall element 33 of Fig. 9, a larger spacing between the prefabricated wall portions 2, 2’ compared with the prefabricated wall element 33 of Fig. 8 is desired. The respectively desired abutment spacing 13 between turning device 4 and the abutments 12 of the spacers 11 can be adjusted by the spacers 11 which can be extended out of the turning device 4.

[0036] Figs. 10a to 10c show the steps of guiding the holding elements 6 over the prefabricated wall portion 2 from their release position 14 (Fig. 10a) into their holding position 15 (Fig. 10c), in order to be able to fix the prefabricated wall portion 2 on the mould pallet 3 by means of holding elements 6. The holding elements 6 are adapted to be bendable and in each case include a holding portion 18 and a bending portion 19, wherein the bending portion 19 is bendable relative to the holding portion 18.

[0037] In Fig. 10a, the holding elements 6 are located in their release position 14 and are not yet arranged over the prefabricated wall portion 2. The holding elements 6 are located in bent position 17, with the result that they take up as little space as possible laterally to the turning device 4. In a first step, the holding elements 6 are now bent up (see arrows 38), with the result that they are located in the longitudinal position 16, as shown in Fig. 10b. A holding element 6 can be fixed in this longitudinal position 16 by means of latching connection 20 of a holding element 6 (see Fig. 12a to Fig. 12d). Next, the holding elements are pushed, in a translational movement, over the surface of the prefabricated wall portion 2 (see arrows 39). After the bracing of the holding elements 6 by means of bracing unit 35 (see Fig. 3a), the holding elements 6 are located in their holding position 15, in which the respective ends 9 of the holding elements 6 are pressed against the surface of the prefabricated wall portion 2 and thus fix the prefabricated wall portion 2 on the mould pallet 3 in a stable position.

[0038] Figs. 11a to 11c show the steps of guiding the holding elements 6 out from their holding position 15 (Fig. 11 a) to their release position 14 (Fig. 11c) after the turning and arrangement of the mould pallet 3 above a further mould pallet 3’, in order to release the prefabricated wall portion 2.

[0039] The holding elements 6 are first located in their holding position 15, in which they hold the prefabricated wall portion 2 on the mould pallet 3 in a stable position. After the release of the bracing of the holding elements 6 to the surface of the prefabricated wall portion 2 by means of bracing unit 35 (e.g. by ending the air pressurization of an air hose), the holding elements 6 are pushed out laterally in a translational movement (see arrows 40). Next, the latching connections 20 of the holding elements 6 are released and the holding elements 6 are bent (see arrows 41), with the result that they are located in bent position 17 and thereby take up as little space as possible laterally to the turning device 4.

[0040] Fig. 12a shows a possible embodiment of a proposed holding element 6 in its longitudinal position 16 in a perspective view, Fig. 12b shows the holding element 6 in a top view and Fig. 12c shows the holding element 6 in a side view. The holding element 6 can be secured in its longitudinal position 16 by a latching connection 20, located inside the holding element 6, which can be actuated by an actuating device 45 arranged on the outer end 34 of the holding element 6. In the longitudinal sections of Fig. 13 and Fig. 14, the securing of the holding element 6 in the longitudinal position 16 by means of the latching connection 20 is represented.

[0041] The holding element 6 includes a holding portion 18 and a bending portion 19, which can be pivoted relative to each other about a bending axis 42, with the result that the bending portion 19 is bendable relative to the holding portion 18, in order to bring the holding element 6 from its longitudinal position 16 into a bent position 17 (see e.g. Fig. 5 10a). In the example shown, the bending portion 19 is arranged on the holding portion 18 pivotably about the bending axis 42. The holding portion 18 and the bending portion 19 in each case include two tubular bars 43. Due to a spacing of the bending axis 42 from the bar ends 44, a preferential force transmission of forces acting in the holding portion 18 results, when the holding element 6 is located in its holding position 15 (see e.g. Fig. 11a). D [0042] Figs. 13 and 14 in each case show longitudinal sections of the holding element 6, showing the mode of operation of the latching connection 20 arranged inside the holding element 6. The holding portion 18 includes two tubular bars 43, the inner cavity of each of which in the area of a bar end 44 towards the bending portion 19 forms a receiving means 22 fora latching pin 21 moveable out of the bending portion 19 into the receiving means 5 22. The bending portion 19 likewise includes two tubular bars 43, in the inner cavity of each of which a latching pin 21 is mounted moveably along the bending portion 19. In the example shown, the latching pins 21 are connected to an actuating device 45 arranged on the outer end 34 of the holding element 6 via in each case a rod 46 extending inside a bar 43. In each case a compression spring 47, likewise arranged inside a bar 43, which ) presses the latching pin 21 into the corresponding receiving means 22 on the corresponding bar 43 of the holding portion 18 in the absence of a corresponding opposing force, acts on the latching pins 21. The latching pins 21 and the receiving means 22, in which the latching pins 21 can latch, thus form a latching connection 20, by which the bending portion 19 can be secured relative to the holding portion 18 and thus 5 the holding element 6 can be secured in its longitudinal position 16.

[0043] The latching pins 21 can be extended out of the bars 43 of the bending portion 19 by actuation of the actuating device 45 and are moveable into the receiving means 22 in the bars 43 of the holding portion 18. In the example shown, the actuating device 45 includes a rotatably mounted rotational pin 48 with a guide pin 49 protruding from its D lateral surface and a sleeve 50 receiving the rotational pin 48 with a spiral-type guide groove 51 (indicated with dotted lines) arranged on the inner wall of the sleeve 50, in which the guide pin 49 of the rotational pin 48 is guided. By a rotation of the rotational pin 48, the guide pin 49 is guided along the spiral-type guide groove 51 of the sleeve 50, whereby the rotational pin 48 also moves with a translation movement in addition to its 5 rotational movement. In other words, an actuation of the actuating device 45 in the form of a rotation of the rotational pin 48 brings about an additional translational movement of the rotational pin 48 along the bending portion 19. The rotational pin 48 is arranged rotatably mounted on a plate-shaped holder 52, to which the rods 46 connected to the latching pins 21 are also attached. Through the translation of the rotational pin 48 along the bending portion 19 caused during rotation of the rotational pin 48, the latching pins 21 are thus also moved correspondingly along the bending portion 19. The actuation of the actuating device 45 is made easier by a handle 53 attached to the end of the rotational pin 48. Indentations in the guide groove 51, in which the guide pin 49 can latch, can additionally make it possible to correspondingly secure the latching pins 21 at suitable positions.

[0044] Figs. 15a to 15d show detail views of a further possible holding element 6 during the transition from its longitudinal position 16 to the bent position 17. The holding element 6 is constructed similarly to the holding element 6 of Fig. 12a to Fig. 14, with the difference that the actuating element 45 includes a simple pulling handle 54. The pulling handle 54 is connected to the latching pins 21 via rods 46. The rods 46 in each case have a radially protruding collar 55, on which in each case a compression spring 47 acts, which thus presses the corresponding latching pin 21 into the corresponding receiving means 22 on the holding portion 18 in the absence of a corresponding opposing force. By pulling on the pulling handle 54 against the spring force of the compression springs 47, the latching pins 21 can be pulled out of their corresponding receiving means 22 and thus the latching connection 20 can be released. After the release of the latching connection 20, the bending portion 19 can be bent relative to the holding portion 18 and thus the holding element 6 can be transferred into its bent position 17.

[0045] On their outer end, the latching pins 21 have pegs 56, which can be latched in corresponding recesses 57 on the surface of the holding portion 18 in the bent position 17 of the holding element 6, in order to secure the holding element 6 in the bent position 17 and prevent undesired pendular movements between holding portion 18 and bending portion 19. Through the shown compression spring-loaded design of the latching pins 21 by means of compression springs 47, the pegs 56 of the latching pins 21 latch automatically in the recesses 57 in the bent position 17 of the holding element 6.

Claims

An apparatus for manufacturing a large flat precast wall portion (2) comprising, in particular, at least one concrete layer (1) of a movable casting pallet (3), the apparatus comprising the movable casting pallet (3) and a reversing device (4) capable of connected to the casting pallet (3) to turn the casting pallet (3), wherein the turning device (4) is provided with a clamping device (5) comprising at least one holding member (6), the holding member (6) being arranged on the clamping device (5) pivotally about a a pivot axis (8) extending substantially parallel to a surface (7) of the casting pallet (3), whereby by rotating the holding member (6) around its pivot axis (8) an end (9) of the holding member (6) can be pressed against it. pre-fabricated wall part (2), wherein the pre-fabricated wall part (2) can be fixed in a stable position on the casting pallet (3), characterized in that for attaching pre-fabricated wall parts (2) of different thickness to the casting pallet (3) the clamping device (5) is arranged movable on the reversing device (4), a distance (10) extending substantially vertically on the pivot axis (8) between the reversing device (4) and the pivot axis (8) of the holding member (6) is adjustable.

Apparatus according to claim 1, characterized in that the clamping device (5) is arranged on the turning device (4) which is displaceable substantially perpendicular to the surface (7) of the casting pallet (3).

Apparatus according to claim 1 or claim 2, characterized in that the clamping device (5) is movable steplessly and / or drive-supported.

Apparatus according to one of Claims 1 to 3, characterized in that the device on the reversing device (4) is at least one spacer (11) for adjusting the distance of the casting pallet (3) relative to another casting pallet (3 ') which can be arranged by a a support (12) of the spacer (11), the spacer (11) arranged movably on the reversing device (4), a support distance (13) extending substantially perpendicular to the pivot axis (8) between the reversing device (4) and the support (12) of the spacer (11) is adjustable.

Apparatus according to claim 4, characterized in that the spacer (11) is arranged on the reversing device (4) slidably substantially perpendicular to the surface (7) of the casting pallet (3).

Apparatus according to claim 4 or claim 5, characterized in that the spacer (11) is movable steplessly and / or drive-supported.

Apparatus according to one of claims 4 to 6, characterized in that the distance (10) between the turning device (4) and the pivot axis (8) is adjustable independently of the support distance (13) between the turning device (4) and the support (12) of the spacer (11). .

Apparatus according to one of claims 1 to 7, characterized in that the holding element (6) is movable from a release position (14) to a holding position (15), wherein the holding element (6) is arranged on the clamping device (4) movable by a shear movement, wherein preferably the holding member (6) is movable substantially parallel to the surface (7) of the casting pallet (3).

Apparatus according to one of claims 1 to 8, characterized in that the holding element (6) is of a substantially rod-shaped configuration, wherein the holding element (6) is adapted to be flexible from a longitudinal position (16) to a bending position. (17).

Apparatus according to claim 9, characterized in that the holding element (6) comprises a holding part (18) and a bending part (19), wherein the bending part (19) is flexible relative to the holding part (18), where preferably the bending part (19) is arranged on the holding member (18) pivotally about a bending axis (42).

Apparatus according to claim 9 or claim 10, characterized in that the holding element (6) can be fixed in the longitudinal position (16) and / or the bending position (17).

Apparatus according to claim 11, characterized in that the holding element (6) comprises a locking connection (20), wherein the bending part (19) can be secured with respect to the holding part (18) the locking connection (20).

Apparatus according to claim 12, characterized in that the locking connection (20) comprises at least one locking bolt (21) arranged on the bending part (19) and is preferably compressed spring loaded and at least one receiving means (22) on the holding part (18) receiving at least partially the locking pin (21), wherein the bolt / locking pin (21) is movable into the receiving member (22), whereby preferably at least one locking bolt (21) is arranged on or in the bending member (19) movable along the bending member (19).

Apparatus according to claim 13, characterized in that in order to secure the holding element (6) in the longitudinal position (16), the holding part (18) comprises at least one rod (43) with a locking bolt (21) receiving member (22) movable out of the bending part. (19) into the receiving means (22), where preferably the bending axis (42) is arranged apart from an end (44) of the rod (43) which is against the bending portion (19).

Apparatus according to claim 13 or claim 14, characterized in that the at least one locking bolt (21) is preferably connected by means of a rod (46) to an actuating device (45) arranged at an outer end (34) of the bending part (19), the at least one locking bolt (21) is movable by actuation of the actuator (45).

Apparatus according to claim 15, characterized in that the actuating device (45) comprises a pull handle (54), wherein the at least one locking bolt (21) is movable by a pulling or pushing movement of the pull handle (54).

Apparatus according to claim 15, characterized in that the actuating device (45) comprises a pivotally mounted pivot bolt (48), the at least one locking bolt (21) being movable by turning the pivot bolt (48).