Wall formwork with coupling device

Abstract

According to the invention a wall formwork (1, 2) for the production walls consisting of concrete having a coupling device (4, 10), by means of which the wall formwork (1, 2) may be coupled to another wall formwork which is arranged adjacent or above is provided. The coupling device (4, 10) ispreferably detachablycoupled to the wall formwork (1, 2) and is especially coupled to a supporting element (2) of the wall formwork (1, 2). By coupled it is meant that the coupling device (4, 10) may even kept coupled to the wall formwork (1, 2) when the coupling device (4, 10) will not be used for coupling the wall formwork (1, 2) to another wall formwork. By way of coupling between the coupling device (4, 10) and the wall formwork (1, 2), during installation, a coupling device (4, 10) will immediately be available, if the wall formwork (1, 2) is to be coupled to another wall formwork by the coupling device (4, 10). By this, assembling will be promoted. Also realization of disassembling may be promoted, since the coupling device (4, 10) does not have to be deposited nor handled separately. For disassembling detachment of the coupling device (4, 10) from the wall formwork (1, 2) which is arranged adjacent or above will be sufficient.

Claims

1. A system for the production of walls made of concrete including a wall formwork and a coupling device, by means of which the wall formwork may be coupled to another wall formwork which is arranged adjacent or above, wherein the coupling device is coupled or is connectable detachably and mechanically, to the wall formwork wherein the coupling device has a fixing device which may mechanically and detachably be coupled to at least one supporting element of the wall formwork, and at least another component, by means of which the two adjacent wall formworks for the concrete casting may be coupled, wherein a holding device for holding the at least one other component in a parking position in part of the system, wherein the holding device comprises a magnet or a spring which is able to hold the other component in the parking position, in which the two wall formworks are not coupled to each other by the coupling device.

2. The system according to claim 1 wherein the other component may be pivoted in relation to the fixing device in order to be transferred from the parking position into a fixed position and vice versa.

3. The system according to claim 1 wherein the other component is assured against unscheduled pivoting in the parking position.

4. The system according to claim 1 wherein the other component is in the parking position at least predominantly in the plane of the wall formwork.

5. The system according to claim 1 wherein the holding device comprises the spring, which is a biased spring to hold the other component in the parking position.

6. The system according to claim 1 wherein the coupling device comprises the holding device.

7. The system according to claim 1, wherein the coupling device is mounted to two supporting elements of the wall formwork.

8. The system according to claim 7, wherein a rod of the coupling device is mounted to one or two supporting elements of the wall formwork and at least one other component of the coupling device is movably coupled to the rod.

9. The system according to claim 1, wherein the coupling device comprises a component which has an elongated hole through which a rod of the coupling device is passed.

10. The system according to claim 1, wherein at least one component of the coupling device may be moved against a supporting element of the wall formwork such that the at least one component is able to transmit the load to the at least one supporting component which emerges if the wall formwork is or becomes coupled to another wall formwork by the coupling device.

11. The system according to claim 1, wherein the coupling device comprises a rod having a broadened area such that the rod but not the broadened area may be passed through a hole at a supporting element of the wall formwork.

12. The system according to claim 11, wherein the broadened area is wedge-shaped.

13. The system according to claim 1, wherein the fixing device comprises a rod.

14. The system according to claim 13, wherein the at least one other component may be pivoted about the rod and the pivoting movement may be fixed in relation to the rod, and is fixed in two different positions.

15. The system according to claim 1, wherein the coupling device comprises two clamps, which are displaceable in relation to each other, as well as a wedge, by means of which the two clamps may be moved towards each other.

16. The system according to claim 15, wherein the wedge comprises a hook-shaped end.

17. The system according to claim 16, wherein the rod of the coupling device is passed through an elongated hole of the one clamp.

18. The system according to claim 17, wherein the rod comprises a section, the cross section of which is adopted to the elongated hole such that a pivoting movement of the at least one other component of the coupling device about the rod may thereby be prevented.

19. The system according to claim 1, wherein a wedge of the coupling device, which is configured such that it may be fixed in an oblique position when an at least one other component of the coupling device is in a rest position.

20. The system according to claim 15, wherein a supporting surface is abutting a supporting element of the wall formwork to provide for a nose of the clamp to have a distance from said supporting element in the parking position.

21. The system according to claim 20, wherein the supporting surface is abutting to a horizontally extending supporting element of the wall formwork, wherein a horizontally extending supporting element extends horizontally in an erected state of the wall formwork for concrete casting.

22. The system according to claim 3, wherein the other component is in the parking position at least predominantly in the plane of the wall formwork.

Description

(1) In the following the invention will be explained in detail by way of figures, wherein:

(2) FIG. 1: is a system comprising a wall formwork and a coupling device;

(3) FIG. 2: is a rod of the coupling device shown in FIG. 1;

(4) FIG. 3: is another component of the coupling device shown in FIG. 1;

(5) FIG. 4: is another embodiment of a wall formwork with coupling device;

(6) FIG. 5: is another component of a coupling device with two clamps and a wedge;

(7) FIG. 6: is another component according to FIG. 5 with the wedge being inserted;

(8) FIG. 7: is a section of two wall formworks which are coupled to each other by a coupling device according to the FIGS. 5 and 6;

(9) FIG. 8: is a coupling device in the rest position on a supporting element of a wall formwork.

(10) FIG. 1 shows a first embodiment of the invention and particularly a coupling device in its coupling position. The coupling device also couples two wall formworks according to the present invention. A vertically extending supporting element 1 of a wall formwork as well as two horizontally extending supporting elements 2 coupled thereto are shown. The horizontally extending supporting elements 2 have a hat-shaped profile in cross section, such as especially set forth in FIGS. 7 and 8. Openings or holes 3, respectively, pass through this hat-shaped profile. A rod-like element 4 of the coupling device is mechanically coupled to the two horizontally extending supporting elements 2. The rod-like element 4 comprises a wedge-shaped broadened central area 5, which on top merges into a round rod 6. The round rod 6 has initially been inserted from the bottom into a hole 3 of the upper supporting element 2 of the wall formwork. A round rod 7 which can be seen in FIG. 2 is also connected to the wedge-shaped area 5 on the lower side. Compared to the lower round rod 6 the upper round rod 7 is longer, in order to be able to detachably couple the rod-like element to the wall formwork, as it is described. For this the upper round rod 6 initially is fully inserted from the bottom into a hole 3 of the upper supporting element. It will thus be accomplished to position the lower, relatively short round rod 7 above a hole 3 of the lower supporting element 2 of the wall formwork. If the rod-like element 4 will subsequently be lowered the lower round rod 7 will also be inserted into the hole 3. This lowering will be completed as soon as the lower area of the wedge shape 5 abuts to the lower supporting element 2 and will prevent further lowering. This lowering does not result in the upper round rod 6 to be displaced out of its hole 3. In the erected state of the wall formwork the rod-like element 4 will therefore be mechanically, i.e. according to the present invention detachably, coupled to the wall formwork.

(11) The rod-like element 4 has two supporting elements 8 on, i.e. in the lower half of the wedge 5, which abuts to the lower, relatively short round rod 7. The two supporting elements 8 perpendicularly protrude from the rod-like element 4 towards the vertically extending supporting element 1 of the wall formwork and in the mounted state will be in contact with the supporting element. The free front end of each supporting element 8 protrudes into a groove 9 of the vertically extending supporting element 1. The two free ends of each supporting element 8 which laterally protrude abut to the outer surface of the vertically extending supporting element 1 of the wall formwork. The desired position of the rod-like element 4 thus will be stabilized. The two supporting elements 8 transmit load exerted on the rod-like element 4 which emerges in the mounted state to the vertically extending supporting element 1. The rod-like element 4 thus may be less stable than the supporting element 1.

(12) Positioning of the two supporting elements 8 is especially selected such that the load, in the coupled state, will be transmitted to the area of the rod 4 which is between the two supporting elements 8, by two wall formworks. This embodiment will most reliably and suitably transfer a load to a supporting element 1 of a wall formwork.

(13) In addition to the rod-like element 4 the coupling device comprises one other component 10, which movably is coupled to the rod-like element 4. The other component 10, in the mounted state, surrounds a vertically extending supporting element 1 of another wall formwork, which is arranged adjacent to it, by a hook-shaped end 11 The hook-shaped end 11 protrudes into a groove 9 which is provided (cf. FIGS. 7 and 8) of the vertically extending supporting element 1 of the other wall formwork after the two wall formworks have been coupled to each other by the coupling device.

(14) The other component 10 may be moved back and forth along the rod-like element 4 between the two horizontally extending supporting elements 2. If the other component 10 is in the upper area at the round rod 6, the hook-shaped end 11 may be removed from its groove and subsequently the other component 10 may be pivoted about the round rod 6 and away from the vertically extending supporting element 1 of the other wall formwork. By this, the coupling between the two wall formworks will be detached.

(15) If the other component 10 will be moved downwards starting from the round rod 6 die wedge-shape of the area 5 provides for the hook end 11 to be displaced towards the wall formwork having the supporting elements 1 and 2, in order to securely couple the two wall formworks to each other. In order to be able to exert a strong force for the sake of alignment of the two wall formworks during assembling the other component 10 has two reinforced areas 12 which are provided for the downward movement of the other component 10 by way of hammer blowing into its final coupling position. Reinforcement preferably will be realized by way of plate-shaped protrusions 12.

(16) The area of the other component 10 adjacent and coupled to the rod-like element 4 has a recess 13 which is shown in FIG. 3 surrounding the rod-like element 4. The width of this recess is adapted to the width of the wedge 5. Advantageously wedge 5 thus provides for the other component 10 to appropriately be and stay aligned for coupling. By way of this recess 13 shown in FIG. 3 the rod-like element 4 may be passed through. However, a protruding pin 14 prevents the other component 10 from being able to be detached by laterally displacing the rod-like element 4. The recess in combination with the pin thus corresponds to an elongated hole (slot). An elongated hole thus does not strictly have to show a closed shape. The depth of the recess 13 is selected such that the other component 10 may also be displaced in the horizontal direction in order to thus be transferred to and removed from the coupling position.

(17) The coupling device according to the FIGS. 1-3 may detached from the wall formwork without a tool. For example with the round rod 6 a pin may be provided below the upper supporting element 2 preventing unintentional detachment.

(18) In FIG. 4 another embodiment is shown. A round rod 4 of the coupling device has been passed from the top through a hole 3 of the upper horizontally extending supporting element 2. The rod 4 is long enough such that it may also protrude into a hole 3 of a supporting element 2 which is below. On top of rod 4 a plate-shaped broadened end 15 is arranged which prevents the rod 4 from falling through holes 3 due to gravity. If the plate-shaped end 15 will be supported by the supporting element 2, then the lower end of the rod 4 advantageously will protrude into an appropriate hole 3 of the supporting element 2 which is arranged below.

(19) Another component 10 of the coupling device has an elongated hole 16 through which the rod 4 is passed. Due to the elongated hole 16 the other component 10 may be moved back and forth along the rod 4 between the two supporting elements 2 as well as may be moved in a horizontal direction. Moreover the elongated hole 16 allows a tilting movement.

(20) The other component 10 consists of three parts, i.e. a first clamp 17, a second clamp 18 as well as a wedge 19. A leg 20 of the clamp 17 may be inserted into a leg 21 of the clamp 18 such that the two clamps 17 and 18 may be moved towards each other and away from each other. The two legs 20 and 21 have passages into which wedge 19 protrudes. The passages are adapted to the wedge-shape such that the wedge is appropriately guided. Especially, dimensions of the passages are such, that downwardly displacing the wedge 19 for example by way of a hammer through the respective openings or passages 24, respectively, (cf. FIG. 5) results in moving the two clamps 17 and 18 towards each other for coupling the two wall formworks to the vertically extending supporting elements 1.

(21) The two clamps 17 and 18 have protruding noses 22, engaging the grooves 9 of the vertically extending supporting elements 1 of the two wall formworks in the coupled state. By way of a pin 23 the rod 4 will be secured against falling out of its coupled position.

(22) The embodiment shown in FIG. 4 is mechanically coupled to the wall formwork according to the invention, comprising supporting elements 1 and 2. Nevertheless the coupling device 10 may be detached from this wall formwork without any tool.

(23) In FIG. 5 a modified, especially preferred embodiment of a coupling device is represented, similar to that shown in FIG. 4. The leg 21 of the clamp 18 is displaceable inserted into the leg 20 of the clamp 17. The clamp 17 comprises the elongated hole 16. With such a coupling device a slot 25 is preferably provided at the free end of the leg 20 such that the clamp 18 may also be inserted into the slot 25 with the area which faces away from leg 21. This allows especially elongated legs 20 and 21 of the two clamps 17 and 18, which hence may mechanically and especially stably be coupled to each other allowing an especially large displacement path. In such an embodiment in the coupled state, with the clamp 18, there is preferably an abutting surface 26 which generally at least in the mounted state abuts to the surface of the leg 20. In this way coupling by the coupling device will further be improved and mechanically stabilized, since the two clamps 17 and 18 are held especially stably.

(24) In FIG. 6 it is exemplified how passing the wedge 19 through the respective openings 24 makes the two clamps 17 and 18 move towards each other until finally the abutting surface 26 preferably provided of the clamp 18 abuts to the leg 20 of the clamp 17 thus stabilizing the position. The leg 21 then passes through the leg 20

(25) In the FIGS. 7 and 8 a further improved embodiment of a rod 4 of a coupling device especially according to the FIGS. 5 and 6 roof is exemplified. The rod 4 in the lower area 27, which is supported by a horizontally extending supporting element 2 having a hat profile, has an elongated cross section corresponding to the form of the elongated holes 16. Below area 27 having the elongated cross section the rod 4 protrudes into a hole 3 or passes through it. An end which passes through of the rod 4 may be secured below the supporting element 2, for example by way of a pin, against the rod 4 falling out of the hole.

(26) By way of the section or the area 27, respectively, having the elongated cross section the position of the coupling device may be fixed in two different positions, on the one hand, according to FIG. 7, in the position, where the coupling device couples the two wall formworks having the supporting elements 1 to each other. The second way of fixation is shown in FIG. 8. In this position the two wall formworks are not coupled to each other by the coupling device. Instead the coupling device is fully supported by the supporting element 2 of the wall formwork having the vertically extending supporting element 1 and is secured against pivoting. This position shown in FIG. 8 will be adopted following disassembling, if wall formworks have to be handled for reassembling. By this, risk of injury will be reduced and handling will be facilitated.

(27) As it is exemplified in FIGS. 7 and 8 a rod 4 may solely be fixed to one supporting element 2. In this case the rod 4 on its upper end preferably has a crossbar 28 or a differently shaped broadening, respectively, which at least hampers displacement of the coupling device out of the rod, in order to prevent loss of the other component(s) 10. The crossbar 28 or the differently shaped broadening, respectively, may be dimensioned such that with the coupling device being appropriately aligned the elongated hole 16 may be moved out of the rod 4. The bar 28 or the differently shaped broadening, respectively, may however be dimensioned such that the other component(s) 10 may no longer be detached from the rod 4 if the rod 4 is secured to a supporting element 2. Then the other component 10 is maximally protected against loss.

(28) Advantageously the wedge 19 has a hook-shaped end 29, especially having a laterally protruding bolt 30, by way of which the wedge 19 is undetachably and thus advantageously securely coupled to the two clamps 17 and 18. The hook-shaped end 29 allows the wedge 19 to be fixedly supported in an inclined position, as it is shown in FIG. 8.

(29) Advantageously for this end the wedge 19 alternatively or supplementary has an obliquely extending supporting surface 31 stabilizing the position of the wedge 19 in its rest position according to FIG. 8. In the oblique position which is shown the wedge 19 advantageously does not prevent the other components 10 from being extensively supported by a supporting element 2 according to FIG. 8.

(30) The coupling device may furthermore comprise a supporting surface 32 onto which the at least one other component 10 of the coupling device may be deposited in the rest position. The supporting surface 32 preferably is abutting to the supporting element 2 of the wall formwork. The supporting surface 32 advantageously provides for the elements such as nose 22 of the clamp 18 to have a distance sufficiently large from the supporting element 2 in der rest position shown in FIG. 8. The supporting surface 32 thus also has a protective function.