OA18462A - Formwork device - Google Patents

Abstract

The present invention relates to a formwork device (5) for a battery formwork (1) for the production of structural elements, in particular prefabricated concrete elements (27, 28), which comprises at least two partition walls (5'), and the formwork device (5) comprises two formwork panels (11) that are connected to one another, preferably in an articulated manner, in order to be transferred from an unfolded state to a folded state, where each formwork panel (11) comprises a formwork front side (12) for attaching formwork elements (18) and a formwork rear side (13), and the formwork rear sides (13) of the two formwork panels (11) face each other in the folded state and the formwork device (5) is intended to be positioned in the folded state between the partition walls (5'). The present invention further relates to an arrangement consisting of a battery formwork (1) and at least one formwork device (5) according to the invention, where the formwork device (5) is arranged suspended in the battery formwork (1).

Description

Formwork device

The présent invention relates to a formwork device for a battery formwork for the manufacture of structural éléments, In particular prefabricated concrète éléments, which comprises at least two partition walls.

Battery formworks are often used in the sériés production of prefabricated concrète éléments. Prefabricated concrète éléments are often used, in particular, for building houses with precast concrète siabs. These prefabricated concrète éléments can be produced quickiy and cheaply in battery formwork. With conventional battery formwork, so-called partition walls are used as formwork devices and arranged adjacent to each other. The partition walls each span vertical 10 planes. Disposed between the partition walls are formwork éléments e.g. for doors, Windows, etc., which, together with the partition walls arranged on both sides, each define cavities to be filled with concrète. The partition walls are equipped with the respective formwork éléments as needed. For this purpose, a worker attaches the formwork éléments e.g. with magnetic supports on the partition walls made of steel. During production, the partition walls are clamped (braced) 15 against each other to ensure sufficient tightness of the cavities. The cavities are open at the top and are filled with concrète for producing the prefabricated concrète éléments. The cavities arranged between the partition walls are filled with concrète substantially simultaneously. After the concrète has cured, the bracing is released and the cured prefabricated concrète éléments can be removed from the battery formwork. The simultaneous production of several 20 prefabricated concrète éléments makes it possible to produce prefabricated concrète éléments ln a rapid and cheap manner with the battery formwork. On the other hand, handling the large and relatively heavy partition walls is not very easy. Also, fitting the partition walls with formwork éléments is quite laborious. it is therefore désirable and the object of the invention to further simplify the production of prefabricated concrète éléments. In particular, further flexibility in the 25 production process would be désirable.

This object is satisfied according to the invention by a formwork device for a battery formwork for the production of structurai éléments, in particular prefabricated concrète éléments, which comprises at least two partition walls, and the formwork device comprises two formwork panels that are connected to one another preferably in an articulated manner in order to be transferred 30 from an unfolded state to a folded state, where each formwork panel comprises a formwork front side for attaching formwork éléments and a formwork rear side, and the formwork rear sides of the two formwork panels face each other in the folded state and the formwork device is Intended to be positioned in the folded state between the partition walls.

This solution provides the advantage that a formwork device comprising two formwork panels can be used for the simultaneous production of two different prefabricated concrète éléments. In particular, formwork éléments, e.g. for doors and Windows for a prefabricated concrète element.

can be attached to the one formwork panel, whereas formwork éléments for another prefabricated concrète element can at the same time be attached to the other formwork panel.

For producing the prefabricated concrète éléments, the formwork device is positioned between two adjacent partition walls. Due to the possibility of transferring the formwork panels from the unfolded to the folded state, it is possible to equip the formwork panels in the unfolded state with the respective formwork éléments while they are lying down. The formwork panels are 10 subsequently raised and transferred to the folded state in which the formwork panels can be suspended between the partition walls. As a resuit, fitting the formwork panels can be greatly simplified as compared to conventional battery formwork. The possibility of fitting the formwork panels in the lying down state with formwork éléments also facilitâtes automation of this process.

Advantageously, the formwork panels can be formed substantially rectangular. Their shape then corresponds substantially to the shape of the partition walls, so that compatibility with the partition walls Is ensured. This can be advantageous, in particular, for a possible retrofit of existing battery formwork. It can be advantageous if the substantially rectangular formwork panels are connected to one another on one side, preferably on the longer longitudinal side.

The connection is thereby effected along a line extending horlzontally during the insertion process of the folded formwork panels. As a resuit, the two formwork panels extend downwardly starting from this line, hang down from this line, so to speak. ln this way, simple handling of the formwork device is possible.

It can also be advantageous to hâve the formwork panels be connected to each other by way of 25 a hinge joint. Handling can be further simplified in this way, in particular, by transferring them from the unfolded to the folded state.

In one advantageous further development of the invention, at least the formwork front side of the formwork panel can be magnetic. For example, the formwork panel can at least in part be made of steel. In this way, magnetic formwork éléments can be attached to the formwork panel, 30 whereby handling is even further simplified and the formwork device can be used even more efficiently.

It can also be favorable to hâve the formwork device comprise at least one roller. The formwork device can then be easily positioned and moved in the battery formwork.

It can also be advantageous to hâve the roller be provided on a narrow side of the formwork device and preferably In the région where the two formwork panels adjoin each other. With such a configuration, the formwork device can be handled in an even easier manner in the battery formwork.

It can also prove to be advantageous to hâve the roller be arranged at the hinge joint. Such an arrangement is particularly advantageous for battery formwork in which the partition walls and/or the formwork device are arranged in a suspended manner. Independent unfolding of the formwork panels can thereby be counteracted.

In one advantageous development of the invention, the formwork device can comprise a preferably detachably arranged heating device and/or a vibrator. Both the heating device as well as the vibrator can be detachably mounted. This makes it possible to use the formwork devices in a more universal manner. It is no longer necessary to use expensive partition walls with fixedly mounted vibrators. Instead, the formwork device can be equipped with a heating device and/or with a vibrator as needed. The heating device and/or the vibrator can be mounted in particular when fitting the formwork panels with formwork éléments. It is conceivable to attach the heating device and/or the vibrator with magnetic supports to the formwork element.

Furthermore, it can prove to be advantageous to hâve a filler neck be provided on an end portion of the formwork device disposed opposite to the articulated connection, preferably the hinge joint. Such a filler neck can be attached in the lower région of the formwork device when the formwork device is suspended in the battery formwork. It is then possible to fill in the concrète from below. With formwork éléments arranged in a suspended manner, the filler neck can optionally be arranged at the bottom on the face side. Preferably, however, it is located at a lower end portion laterally on the formwork device. Such a filler neck can also be designed as a permanent member. It then remains in the molded prefabricated concrète éléments and the part not needed can then e.g. be eut off.

The above object is also satisfied by an arrangement consisting of a battery formwork and at least one formwork device according to the invention, where the formwork device is arranged suspended in the battery formwork.

This solution has the advantage that no continuous hard floor e.g. made of concrète, is necessary under the battery formwork and in particular under the suspended formwork device. The requirements for the installation site of the battery formwork are thereby reduced, and the battery formwork can be used in a more universal manner.

It can be advantageous to hâve the battery formwork comprise at least one support device, preferably a rail, for receiving the roller of the formwork device. The formwork device can be easily moved in the battery formwork in this way.

Furthermore, the invention relates to a formwork device for a battery formwork with at least two 5 partition walls, in which a formwork panel is arranged between the partition walls which formwork panel comprises a front side and a rear side and the front side is associated with one partition wall and the rear side is associated with the other partition wall, and the formwork panel with its front and rear sides and the respectively associated partition walls each define at least one cavity for filling in concrète.

Unlike the previously discussed embodiment, only one formwork panel is provided in this embodiment and can preferably be equipped with formwork éléments on both sides. As a resuit, the formwork device has a double effect and allows for further simplification of a formwork for prefabricated concrète éléments in battery formwork.

Furthermore, at least one formwork mold can be provided between the partition walls in both 15 embodiments according to the invention. Such molds can comprise prefabricated arrangements of formwork éléments and are positioned between the partition walls and possibly fastened to the partition wall or the formwork device. As a resuit, the fitting effort can be further reduced. Such molds can also represent only parts of a formwork element. For example, the mold can form an exchangeable core for simple production of different variants of a prefabricated 20 concrète element. Complicated geometries can also be realized therewith, which are difficult to realize with conventional formwork éléments. A collection of molds can exist that allows for the production of different prefabricated concrète éléments in a simple manner.

The above-mentloned features of the formwork device are suitable for partition walis which are suspended, as in the present preferred version of the invention, but are also generally suitable 25 for such partition walis that are mounted on châssis. The partition walls are then supported on the ground and can also be moved e.g. on rails.

The invention shall be explalned in more detail below with reference to one embodiment and the associated drawings.

These drawings show:

Figure 1 a schematic représentation of a battery formwork with formwork devices;

Figure 2 a schematic représentation of a battery formwork with one embodiment of the formwork device according to the invention and « » ( 1

Figure 3	a schematic représentation of a conveyor device for conveying the formwork device according to the invention.
Figures 4 to 7	the work steps involved in transferring the formwork device from the unfolded state to the folded state;
Figures 8 to 11	the formwork device according to the invention mounted between two partition walls on a châssis;
Figures 12 to 19	the work steps in removing the finished prefabricated concrète eiements;
Figure 20	a second embodiment of the formwork device.

Figure 1 shows a schematic représentation of a battery formwork 1 with formwork devices 5. Battery formwork 1 Is used for the production of structurai éléments, not shown, and in particular of prefabricated concrète éléments for buildings. Battery formwork 1 comprises a support frame 2 with bearing sections 3 spaced from each other. The number of bearing sections 3 in Figure 1 Is oniy by way of example and can be adapted to the circumstances. Furthermore, battery formwork 1 comprises two support devices 4 in which partition walls 5' (bulkhead walls) and formwork devices 5 are received in a suspended and movable manner, i.e. In the présent embodiment, in a slidable manner. Formwork devices 5 are there located between the partition walls 5'. A cavlty to be filled with concrète is formed between at least one partition wali 5’ and one formwork device 5, where formwork device 5 preferably supports formwork éléments 18 which define the contour of the prefabricated concrète element. Formwork éléments 18 can define e.g. door or window openings and also seal the cavity fiiled with concrète when concrète îs poured. Formwork éléments 18 can be fastened to formwork device 5 e.g. with magnetic supports, in addition, a heating device and/or a vibrator can further be mounted on formwork device 5.

In the embodiment of Figure 1, formwork device 5 can be plate-shaped and be provided with respective formwork éléments 18 on one side or on both sides. If formwork device 5 is provided with formwork eiements 18 on both sides, It can serve to produce different prefabricated concrète eiements 27, 28 on each side. Formwork device 5 equipped with formwork éléments on both sides, as weli as formwork device 5 equipped with formwork eiements 18 on one side, are inserted between two partition walls 5' and clamped thereto when concrète is poured.

The number of support devices 4, partition walls 5’ and formwork devices 5 is to be regarded as oniy by way of exampie and can be varied depending on the circumstances. E.g. formwork devices 5 can be provided for the outer walls, inner wails, the floor and the roof of a house, so that the structural éléments for an entire building can be produced at the same time with battery formwork 1. Partition walls 5’ and formwork devices 5 can be clamped between two strut devices 6. The number of strut devices 6 Is also to be considered as being by way of example only, and can be varied according to requirements. At least one strut device 6 is received movably, i.e. slidably in the présent embodiment, in support devices 4. For stabilization, formwork devices 5 and strut devices 6 can be connected and clamped to each other ln the concrète pouring position by one or more rod-shaped connecting devices 10. The number of connecting devices 10 can be adapted to the circumstances. Also hydraulic connecting devices are possible instead of rod-shaped connecting devices 10. However, rod-shaped connecting devices 10 are particularly robust and easy to handle.

Figures 4 to 7 show how a formwork device 5 according to the invention is transferred from the unfolded state to the foided state. Figure 4 shows formwork device 5 in the unfolded state with formwork éléments 18 and schematically illustrated reinforcement 18'. Lifting device 7 is raised e.g. by way of a support cable 22 in the région of the hinge joint and transferred to the state shown in Figure 6. According to Figure 7, formwork device 5 is raised and inserted into battery formwork 1 between two partition walls 5'.

ln the Illustration according to Figures 8 to 11, formwork device 5 according to the Invention is drawn ln between two partition walls 5'. It can be seen how formwork éléments 18 together with partition walls 5’ and formwork device 5 define (delimit) two cavities which are open to the top and can be filled with concrète. Before filling in concrète, partition walls 5' are clamped against each other, thereby ensuring the tightness of the cavity. ln the illustration according to Figures 8 to 11, the two partition walls 5' are disposed on a châssis 23. According to the invention, however, partition walls 5' can also be arranged in a suspended manner. The Invention prefers the suspended arrangement. However, Figures 8 to 11 illustrate that also an arrangement is possible, in principle, in which partition walls 5' rest on châssis 23 on the ground. Formwork devices 5 are connected to partition walls 5' by way of fastening devices 24 to 26. Fastening devices 26, such as a boit connection, are provided in the lower région of partition walls 5' which are arranged in an upright manner. Disposed in the upper région are pivotable fastening éléments 24 and 25, with which formwork device 5 can be detachabiy connected to partition walls 5*.

Figures 12 to 19 show the sequence of demolding the prefabricated concrète éléments after having cured. Lifting device 7 first supports prefabricated concrète element 27 shown in the illustration on the right-hand side and prevents it from failing down when partition wall 5' on the right-hand side is removed, as shown in Figure 13. In this embodiment, formwork element 18 is respectively fastened to partition walls 5’. Formwork éléments 18, however, are preferably disposed on formwork device 5. In Figure 14, prefabricated concrète element 27 on the righthand side is now removed. Formwork device 5 Is subsequently raised with lifting device 7 and connection 26 Is released to allow formwork device 5 to be removed. Prefabricated concrète element 28 in the Illustration on the left-hand side has previously been secured to partition wall

5' by way of fastening device 24. Prefabricated concrète element 28 is then raised and iock 24 is released. The prefabricated concrète element can now be removed as shown in Figure 19.

ln battery formwork 1 according to the invention, formwork devices 5 are suspended from above into support devices 4, so that, in the suspended state, they are spaced from the ground between bearing sections 3 in a concrète pouring position. Furthermore, battery formwork 1 10 comprises a lifting device 7 with which at least one of formwork devices 5 can be transferred from the lowered concrete-pouring position to a raised transport position ln which formwork device 5 can be conveyed via a formwork device 5, that is in the concrete-pouring position, in a direction substantially perpendicular to lifting direction X. The configuration of lifting device 7 can be adapted to the requirements. If necessary, several lifting devices 7 can be employed.

Lifting device 7 is movable In a tensioning direction of formwork devices 5 on two spaced guide devices 8, which are presently configured as runner rails 8. Furthermore, guide devices 8 are arranged above support devices 4 and ln parallel thereto. ln order to configure battery formwork 1 in a more compact manner, formwork devices 5 are attached to the support devices 4 at their upper end.

Battery formwork 1 can comprise at least one weighting device, not shown, with a cavity which can preferably be filled with sand, water and/or concrète. Furthermore, the weighting device can be designed to be emptied and/or it can be removable. This can increase the stability and sturdiness of battery formwork 1.

The filling process can be adapted to the respective conditions at the sites where battery 25 formwork 1 is set up. E.g. filling with sand can be advantageous in desert régions. Battery formwork 1 can be easily transported by emptying the weighting device when filled with sand or water, or when removing the weighting device e.g. when it is filled with concrète.

The fact that battery formwork 1 Is modular and can be disassembled, so that each modular component can be transported in a standard 20 feet or 40 feet container also contributes to the 30 transportation of battery formwork 1 being facilitated. In this manner, battery formwork 1 can be rapidly taken to places where living space is quickly needed, e.g. refugee camps.

Battery formwork 1 can be equipped with formwork devices 5 which are configured such that the parts (floor, side walls, Inner walls, roof) for the production of an entire building, consisting

e.g. of 12 parts, can be produced simultaneously with battery formwork 1.

Battery formwork 1 is configured such that the lifting height of a formwork device 5 or a partition 5 wall 5* with lifting device 7 corresponds to at least twice the height, preferably 2.5 times the height of formwork device 5.

Formwork devices 5 and strut devices 6 can be arranged such that sufficient space for storing or loading the demolded prefabricated concrète éléments or formwork éléments 5 remains between a strut device 6 and bearing sections 3, which are arranged on one side of battery 10 formwork 1.

Battery formwork 1 shown in Figure 1 comprises yet further parts, such as a staircase or a handrail. These parts, their number and arrangement are to be regarded as being by way of example only. Such parts may be added or omitted as required.

Figure 2 shows a schematic représentation of a battery formwork 1 with an embodiment of a formwork device 5 according to the invention for the production of structural éléments, not shown, in particular prefabricated concrète éléments. Battery formwork 1 of Figure 2 is similar to battery formwork 1 of Figure 1. For reasons of clarity, the attachments such as stairs, handrail, etc., and lifting device 7 of Figure 1 hâve been omitted. Same structural éléments hâve the same reference numerals. Battery formwork 1 of Figure 2 differs from battery formwork 1 of

Figure 1 substantially only by the different configuration of formwork devices 5.

Formwork device 5 according to the invention shown in Figure 2 comprises two formwork panels 11 which are connected to each other ln an articuiated manner in order to be transferred from an unfolded state to a folded state. Formwork panels 11 outside battery formwork 1 show the unfolded state, and formwork devices 5 disposed within battery formwork 1 show the folded 25 state. Each formwork panel 11 has a formwork front side 12 for attaching formwork éléments

18, as shown in Figure 3, and a formwork rear side 13. ln the folded state, the formwork rear sides 13 of the two formwork panels 11 face each other. Formwork panels 11 are shaped substantially rectangular, so that also the formwork device is shaped substantially rectangular. Such a shape facilitâtes handling formwork device 5. However, the shape of formwork device 5 dépends on the component to be produced. Therefore, the shape of formwork device 5 shown is only by way of example and can be adapted to the circumstances. The dimension of a formwork panel 11 preferably corresponds to the dimension of a partition wall 5’.

Formwork panels 11 are connected to one another on one side at the longer longitudinal side

16. Handling of formwork device 5 can be simplified if formwork panels 11 are connected to each other by way of a hinge joint 14. At least formwork front side 12 of formwork panel 11 can be magnetic in order to facilitate fitting formwork éléments 18, as shown in the example in

Figure 3.

As already mentioned above, the configuration of formwork device 5 dépends on the component to be produced. Therefore, formwork panels 11 can also be connected to each other on one side other than the longer longitudinal side 16, and can comprise a connection that is different from a hinge joint 14. If an attachment e.g. with bolts instead of the magnetic option is 10 selected as the attachment of formwork éléments 18 to formwork panel 11, then it is not necessary that formwork front side 12 of formwork panel 11 be magnetic.

ln contrast to formwork device 5 shown in Figure 1, formwork device 5 according to the invention of Figure 2 comprises two formwork panels 11, which are connected to one another in an articulated manner. In addition, formwork device 5 according to the invention shown in 15 Figure 2 has a roller 15 on each narrowside 17 in the région where the two formwork panels 11 adjoin each other. Rollers 15 are arranged at hinge joint 14. The number and arrangement of rollers 15 can be varied depending on the circumstances.

Formwork devices 5 can be moved easier with rollers 15 in battery formwork 1.

Figure 3 shows a schematic représentation of battery formwork 1 and of a conveyor belt 9 for 20 conveying formwork device 5 according to the Invention.

A soiled formwork device 5 is placed from battery formwork 1 in the unfolded state and with formwork front side 12 facing upwardly onto a receiving région 19 of conveyor belt 9. From there, formwork device 5 is conveyed in the conveying direction Y to a cleaning région 20 where formwork device 5 is cleaned and, in particular, freed from concrète residue. Formwork 25 éléments 18 that are no longer needed later can also be removed there.

Formwork device 5 is subsequently conveyed to a fitting région 21 where new formwork éléments 18 can be mounted.

Formwork device 5 is conveyed from fitting région 21 back to battery formwork 1 into which it is then subsequently suspended. This sequence is to be regarded as being by way of example 30 only and can be adapted as needed. In particular, the number, arrangement and configuration of régions 19,20, 21 can be varied according to requirements.

Fastening device 24 is intended to temporarily secure prefabricated concrète eiements 28 when formwork device 5 is removed. Fastening device 25 is intended to temporarily secure formwork device 5 to partition wali 5' on the left-hand side in the illustration, while prefabricated concrète element 27 Is removed. Fastening devices 24 and 25 are there configured as a folding brackets 5 to allow formwork device 5 or prefabricated concrète element 28 to be temporarily secured. In the illustration according to Figures 12 to 19, partition walls 5* are mounted on châssis. As already explained above, the same sequence of operations can also be performed with such partition walls 5' that are suspended.

Figure 20 shows a second embodiment of formwork device 5 in which formwork éléments 18 10 are arranged on both sides of formwork device 5.

Handling of formwork device 5 Is significantly facilitated due to the fact that formwork device 5 according to the invention comprises two formwork panels 2 which are connected to each other In an articulated manner to be transferred from an unfolded state to a folded state. Formwork device 5 according to the Invention can be used more efficiently than conventional formwork 15 devices, whereby the production costs for structural éléments can be reduced.

Claims (14)

1. Formwork device for a battery formwork (1) for the production of structural éléments, in particular prefabricated concrète éléments (27, 28), which comprises at least two partition walls (5‘), and said formwork device (5) comprises two formwork panels (11) that are connected to one another, preferably in an articulated manner, in order to be transferred from an unfolded state to a folded state, where each formwork panel (11) comprises a formwork front side (12) for attaching formwork éléments (18) and a formwork rear side (13), and said formwork rear sides (13) of said two formwork panels (11) face each other in the folded state and said formwork device is intended to be positioned in the folded state between said partition walls.

2. Formwork device according to claim 1, characterized in that said formwork panels (11) are substantially rectangular and are connected to each other preferably on one side, preferably on the longer longitudinal side (16).

3. Formwork device according to claim 1 or 2, characterized in that said formwork panels (11) are connected to each other by way of a hinge joint (14).

4. Formwork device according to at least one of the preceding claims, characterized In that at least said formwork front side (12) of said formwork panel (11) is magnetic.

5. Formwork device according to at least one of the preceding claims, characterized In that said formwork device (5) comprises at least one relier (15).

6. Formwork device according to at least one of the preceding claims, characterized In that said relier (15) is provided on a narrow side (17) of said formwork device (5) and preferably in the région where said two formwork panels (11) adjoin each other.

7. Formwork device according to at least one of the preceding claims, characterized in that said relier (15) is arranged at said hinge joint (14).

8. Formwork device according to at least one of the preceding claims, characterized in that a preferably detachably mounted heating device and/or a vibrator is provided on said formwork device (5).

9. Formwork device according to at least one of the preceding claims, characterized in that a filler neck is provided at an end portion disposed opposite to said articulated connection, preferably to said hinge joint (14).

10. Arrangement consisting of a battery formwork (1) and at least one formwork device (5) according to at least one of the claims 1 to 9, characterized In that said formwork device (5) is arranged suspended in said battery formwork (1).

11. Arrangement according to claim 10, characterized in that said battery formwork (1)

5 comprises at least one support device (4), preferably a rail (4), for receiving said roller (15) of said formwork device (5).

12. Formwork device for a battery formwork with at least two partition walls (5‘), characterized in that a formwork panel (11) is arranged between said partition walls (5‘) and comprises a front side and a rear side, and said front side îs associated with one

10 partition wall (5‘) and said rear side with said other partition wall (5‘), and said formwork panel (11) with Its front and rear sides and said respectively associated partition walls (5') define at least one cavlty for filling In concrète.

13. Formwork device for a battery formwork according to claim 12, characterized in that its front and/or rear side each comprise at least one formwork element (18).

15 14. Formwork device according to at least one of the preceding claims, characterized in that at least one formwork mold is provided between said partition walls (5').