Formwork for the production of a door / window recess in a concrete wall or ceiling element

Description

[0001] The invention relates to a formwork according to the preamble of claim 1.

[0002] Furthermore, the invention relates to a battery formwork comprising such a formwork and a further formwork element, wherein a formwork space is provided between the formwork panel of the formwork and the further formwork element.

[0003] Finally, the invention relates to a method for producing a concrete element, in particular a wall or ceiling element, with a recess, in particular a window or door recess, comprising the steps: Providing such formwork, arranging the recess formwork in the formwork position, pouring the concrete element with the formwork and separating the concrete element from the formwork.

[0004] Such a recess formwork is known from DE 10 2006 021 892 A1. Further prior art is known from SU 1 780 352 A1, DE 10 2009 05 690 A1, and DE 103 20 003 A1.

[0005] As is known, for example, from DE 102 198 96 C1, a recess formwork can be used to create an opening for a window, a door, or the like in a concrete component. The recess formwork is arranged on the formwork skins of an inner and an outer formwork. The recess formwork has a movable frame which is attached to a rigid inner frame. On the outer circumference of the inner frame, links are formed which hold the frame sections of the recess formwork in an articulated manner. The links can be pivoted so that the recess formwork shrinks and the outer formwork can be removed from the created concrete body together with the recess formwork. Spindles are provided for pivoting the links, which can be lengthened or shortened. The disadvantage, however, is that demolding the concrete component is complex.The spindles must be adjusted to such an extent that there is sufficient distance between the frame sections of the recess formwork and the concrete component in order to be able to detach the formwork from the concrete body.

[0006] A particular problem is that the frame sections can stick to the concrete component, which can prevent the formwork from being removed. Another disadvantage is that the guide rods and spindles are subjected to high loads during concreting, which can lead to malfunctions.

[0007] In contrast, the object of the present invention is to alleviate or eliminate at least some of the disadvantages of the prior art. The invention specifically aims to make the removal of the concrete element from the formwork easier and more reliable. Furthermore, one object of the invention may be to improve the transfer of loads during concreting.

[0008] This object is achieved by a formwork having the features of claim 1, a battery formwork having the features of claim 11, and a method having the features of claim 12. Preferred embodiments are specified in the dependent claims.

[0009] The formwork removal device has a sliding and tilting mechanism for sliding the frame element in a direction parallel to the formwork panel and for tilting the frame element about a pivot axis running substantially parallel to the formwork panel.

[0010] To prepare for the release of the concrete element from the formwork, the sliding and tilting mechanism of the demolding device is activated. The sliding and tilting mechanism is designed to slide the frame element in a direction parallel to the main plane of the formwork panel and simultaneously tilt the frame element about the pivot axis running parallel to the main plane of the formwork panel. This allows the frame element to be not only moved along the inside of the formwork panel, but also tilted away from the inside of the formwork panel. This significantly facilitates the separation of the formwork and the structural element after curing. Even if the frame element adheres to the concrete element, the concrete element can still be separated from the formwork because the frame element is simultaneously moved and tilted. This reliably prevents blockages during demolding.If the frame element is not adhered to the concrete element, sliding it without simultaneously tilting the frame element may be sufficient. However, it is essential that the formwork removal device is designed to allow both sliding and tilting of the frame element.

[0011] If the pivot axis of the sliding and tilting mechanism runs substantially parallel to the longitudinal axis of the frame element, the frame element can be tilted away from the formwork panel when the concrete element is separated from the formwork. This allows the concrete element to be reliably removed from the formwork (or, conversely, the formwork can be pulled off the concrete element). In the formwork position, the frame element is preferably arranged substantially perpendicular to the inside of the formwork panel. If the frame element is tilted during striking, the frame element is arranged at an angle to the inside of the formwork panel in the striking position.

[0012] Preferably, the frame element can be tilted by at least 2 degrees, in particular at least 4 degrees, particularly preferably at least 6 degrees, while simultaneously being displaced away from the concrete element.

[0013] In order to enable the desired displacement and pivoting capability easily and reliably, the displacement and tilting mechanism of the stripping device has a longitudinal guide, in particular an elongated hole, and a guide element, in particular a bolt, mounted displaceably and pivotably therein, wherein the longitudinal guide is provided on one of the support bracket and bearing element and the guide element is provided on the other of the support bracket and bearing element. Preferably, the longitudinal guide is formed on the support bracket and the guide element on the bearing element. However, the reverse arrangement can also be provided. By displacement of the guide element along the longitudinal guide while simultaneously pivoting the guide element about the pivot axis, the frame element is displaced inwards and tilted away from the formwork panel. The desired degrees of freedom of movement are thus realized in a particularly simple manner.Transfer to the stripping position can be carried out particularly quickly, as the laborious actuation of spindles, as with the state of the art, is not required. Under the influence of gravity and / or contact with the concrete element, the transition from the formwork to the stripping position can be jerky. Preferably, all degrees of freedom of movement of the frame element are locked, except for displacement along the formwork panel and tilting about the pivot axis parallel to the formwork panel.

[0014] In order to release the tilting movement of the support angle during transfer to the stripping position and therefore not to block it, according to a preferred embodiment variant the support angle has a rounded portion at the end region facing the pivot axis to release the pivoting of the support angle.

[0015] To ensure the formation of the recess in the concrete element, the recess formwork has a locking element for securing the support bracket in the formwork position. When the locking element is locked, the recess formwork is secured against transfer from the formwork position to the striking position. When the locking element is unlocked, the transfer from the formwork position to the striking position is permitted. Thus, with the locking element locked, the concrete element can be poured into the receiving space of the formwork adjacent to the formwork panel. After the concrete element has hardened, the locking element is returned to the unlocked state to allow the recess formwork to be transferred from the formwork to the striking position.

[0016] For securing and releasing, the securing element can be connected to the bearing element via a detachable connection, in particular a screw connection. Releasing the detachable connection allows for preparation for formwork removal. Conversely, the detachable connection is established to enable the concrete element with the recess to be poured. The detachable connection of the securing element can therefore be established and released reversibly, i.e., without any loss of functionality, and preferably without the use of tools.

[0017] In order to make assembly particularly simple, reliable, and quick, in a preferred embodiment the screw connection has a threaded bolt, in particular substantially in the center of the bearing element, wherein the securing element has a holding opening for placement on the threaded bolt. In this embodiment the screw connection preferably has a retaining nut which fixes the securing element placed on the threaded bolt to the bearing element. The threaded bolt is preferably arranged substantially perpendicular to the main plane of the formwork panel, which on the one hand facilitates the placement of the securing element and on the other hand facilitates the attachment of the retaining nut. It is also advantageous if the securing element has a holding plate on which the holding opening is formed.This design has the particular advantage that the sliding and tilting mechanism can be at least partially, preferably essentially completely, covered by the holding plate when the securing element is in the secured state. This increases safety during operation. In the secured state, the holding plate is preferably arranged essentially perpendicular to the threaded bolt and essentially parallel to the formwork panel. The bearing element preferably has a bearing plate which is attached to the formwork panel. In this design, it is advantageous if the holding plate of the securing element has essentially the same shape and extent as the bearing plate of the bearing element, wherein the holding plate and the bearing plate are arranged essentially congruently in plan view, perpendicular to the formwork panel.

[0018] Preferably, the bearing element, in particular a bearing plate of the bearing element, is attached to the formwork panel via a screw connection, for example, with a threaded bolt. However, a magnetic connection may also be provided.

[0019] To reliably prevent the frame element from shifting or tilting in the formwork position, the securing element, in a preferred embodiment, has a first retaining surface for engaging an outer side of the support bracket facing away from the formwork panel and / or a second retaining surface for engaging an end face of the support bracket facing away from the frame element. Preferably, the second retaining surface of the securing element is designed as a wedge surface. This design reliably secures the frame element in the formwork position, enabling the precise formation of the recess in the concrete element.

[0020] The bearing element has at least a first wedge surface and the securing element has at least a second wedge surface, wherein in the secured state of the securing element the second wedge surface of the securing element bears against the first wedge surface of the bearing element. In the secured state the first and second wedge surfaces are arranged at an angle to the inside of the formwork panel, i.e. at an angle other than 90 degrees, for example at an angle of 70 or 110 degrees. Preferably the bearing element has at least two, in particular four, first wedge surfaces and the securing element has at least two, in particular four, second wedge surfaces. The first and second wedge surfaces preferably diverge in a direction away from the inside of the formwork panel.The first wedge surfaces preferably define a receiving opening into which a portion of the securing element, in particular a projection on the underside of a retaining plate of the securing element, is inserted with the second wedge surfaces. The first wedge surfaces form corresponding contact surfaces for the second wedge surfaces of the securing element to facilitate the attachment of the securing element to the bearing element. It is further advantageous that the first and second wedge surfaces effectively clamp the securing element to the bearing element.

[0021] In order to attach several frame elements to the same bearing element, the bearing element has at least two, preferably four, bearing points for supporting two, preferably four, support angles. Preferably, at least one pair of bearing points is provided for two support angles, which protrude in opposite directions from the bearing element. This makes it possible to form two opposite boundaries of the recess in the concrete element. Depending on the design, however, three support angles can also lead away from three bearing points at right angles to one another in order to form three boundaries of a rectangular recess in the concrete element. Furthermore, four bearing points can be arranged in pairs at right angles to one another. If support angles are arranged at all four bearing points, all four boundaries of a rectangular recess can be formed.Thus, two, three or four support angles can be arranged at the bearing points of the bearing element, to which a corresponding number of frame elements are attached in order to form two, three or four boundaries of a rectangular recess of the concrete element.

[0022] In a preferred embodiment, the bearing points each have at least one retaining flange with a bearing opening. The retaining flange is preferably arranged substantially perpendicular to the formwork panel. The guide element, in particular the bolt, of the sliding and tilting mechanism is preferably mounted on the bearing opening. It is also advantageous if the bolt is attached to the bearing opening in a detachable manner, in particular detachable without tools. The bolt can be secured to the bearing opening with a locking pin. This allows the associated support bracket to be easily detached from the bearing element if the corresponding bearing point is not to be occupied by a support bracket for the current application.

[0023] According to a preferred embodiment, the formwork comprises a further formwork panel, wherein the formwork panel and the further formwork panel are pivotably connected to one another at their first end regions, so that the formwork panel and the further formwork panel can be converted from an upright state to a horizontal state. A "butterfly formwork" with two pivotable formwork elements is known, for example, from WO 2016 / 184947 A1. The two preferably rectangular formwork panels are each pivotably connected at a first end region, in particular at one of their long sides. For this purpose, an articulated connection can be provided between the first end regions of the formwork panels. This allows the two formwork panels to be converted from an upright state, in which the formwork elements are preferably aligned substantially vertically, to a horizontal state, in which the formwork elements are preferably aligned substantially horizontally.In the upright position, the first end sections form the upper ends of the formwork elements, and the second end sections form the lower ends of the formwork elements. In the horizontal position, for example, the recess formwork can be mounted to the formwork panel.

[0024] The formwork is preferably used in a battery formwork which has an additional formwork element, wherein a formwork space is provided between the formwork panel of the formwork and the additional formwork element. The additional formwork element can be a single formwork panel. Alternatively, two additional formwork elements can be pivotally connected to one another at their first end regions, as explained above in connection with a preferred embodiment of the formwork. In this case, the formwork space is formed between the formwork and one of the additional formwork elements. Of course, such a battery formwork can be expanded as desired with formwork and additional formwork elements in order to create several formwork spaces for the production of several concrete elements.To manufacture a concrete element, in particular a precast concrete component, the formwork can be arranged between two bulkheads of the battery formwork while the formwork panels are in the upright position. The formwork panels are in the folded position (i.e., essentially parallel to one another).

[0025] In the method for producing a concrete element, in particular a wall or ceiling element, with a recess, in particular a window or door recess, at least the following steps are carried out, preferably in the specified order: Providing a formwork according to one of the embodiments described above, arranging the recess formwork in the formwork position, pouring the concrete element with the formwork, separating the concrete element from the formwork, wherein at least one frame element of the recess formwork is displaced in a direction parallel to the formwork panel and tilted about a pivot axis running substantially parallel to the formwork panel when separating the concrete element from the formwork.

[0026] To cast the concrete element, an additional formwork element is preferably arranged opposite the formwork panel, with the recess formwork located between the formwork panel and the additional formwork element. The concrete element is preferably cast in a battery formwork comprising the formwork and the additional formwork element.

[0027] The invention is further explained below using a preferred embodiment, to which it is not intended to be limited.

[0028] Fig. 1 shows schematically a front view of a formwork according to the invention with a recess formwork for producing a concrete element with a window or door recess, wherein the recess formwork has four frame elements which are fastened to bearing elements via support angles.

[0029] Fig. 2 shows schematically a sectional view of the formwork according to the invention, wherein the recess formwork is arranged in a formwork position in which the frame element is still in contact with the finished concrete element.

[0030] Fig. 3 und Fig. 4 show the formwork of the Fig. 2 , wherein the frame element is shifted and pivoted by means of a shifting and tilting mechanism into a stripping position spaced from the concrete element.

[0031] Fig. 5 and Fig. 6 show Fig. 2 and Fig. 4 corresponding views of a modified embodiment of the formwork, which has an attachment angle between the support angle and the frame element of the recess formwork for the production of a thicker concrete element.

[0032] Fig. 7 shows a perspective view of the formwork in the area of the recess formwork, whereby the recess formwork is fixed in the formwork position by means of a securing element.

[0033] Fig. 8 shows a view of the formwork in which a retaining nut on the securing element has been loosened to prepare for stripping.

[0034] Fig. 9 shows a view of the formwork in which the securing element has been removed from the bearing element on the front of the formwork panel in order to release the displacement and pivoting of the frame elements attached to the bearing element.

[0035] Fig. 10 shows a detailed view of the formwork.

[0036] Fig. 11 shows an alternative design variant in which only one frame element is mounted on the bearing element of the recess formwork.

[0037] Fig. 12 shows the variant of the Fig. 11 , but without the securing element.

[0038] Fig. 13 shows a battery formwork in which the formwork according to the invention can be used.

[0039] Fig. 1 shows a formwork device, hereinafter referred to as formwork 1, for the production of a (in Fig. 2 visible) concrete element 2, which is in particular a rectangular wall or ceiling element. The formwork 1 has a formwork panel, i.e. a formwork plate, 3, which has an inner side 4 for defining a receiving space for concrete and an outer side 5 facing away from the receiving space (cf. Fig. 2 ). The inner side 4 and the outer side 5 of the formwork panel 3 are essentially flat. On the inner side 4 of the formwork panel 3, a recess formwork 6 is arranged, with which a window or door recess 7 is formed in the concrete element 2. The recess formwork 6 has at least one frame element 8, which delimits a straight section of the recess 7. In the embodiment shown, four frame elements 8 are arranged at right angles to one another in order to define a rectangular recess 7. The frame elements 8 are each connected via at least one support angle 9 to at least one bearing element 10, which is fastened to the inner side 4 of the formwork panel 3. In the embodiment of the Fig. 1 Each frame element 8 is connected to two bearing elements 10 via two support angles 9.

[0040] As from Fig. 2 As can be seen, a stripping device 11 is provided, with which the recess formwork 6 is removed from a Fig. 1 and Fig. 2 shown formwork position for concreting the concrete element into a Fig. 3, 4 shown stripping position for releasing the concrete element 2 from the formwork 1. The stripping device 11 has a sliding and tilting mechanism 12, which is designed to slide the frame element 8 in a direction 13 parallel to the formwork panel 3 (cf. double arrow 13 in Fig. 3 ) and to tilt a pivot axis running essentially parallel to the formwork panel 3 (see double arrow 14 in Fig. 3 ). In the embodiment shown, the pivot axis of the sliding and tilting mechanism 12 runs parallel to the longitudinal axis 15 of the frame element 8 (cf. Fig. 1 ).

[0041] The sliding and tilting mechanism 12 of the stripping device 11 has a longitudinal guide 16, here a slot, in which a guide element 17, here a bolt, can be moved and pivoted. In the embodiment shown, the longitudinal guide 16 is provided on the support bracket 9 and the guide element 17 on the bearing element 10. The support bracket 9 has a rounded portion 18 (i.e., a rounded outer contour) at the end region facing the pivot axis, adjacent to the inner side 4 of the formwork panel 3, which enables the pivoting of the support bracket 9.

[0042] As from Fig. 2 As can be seen, formwork 1 also has a (in Fig. 1 not shown) securing element 19 for securing the support bracket 9 in the formwork position. The securing element 19 is connected to the bearing element 10 via a detachable connection, in the embodiment shown via a screw connection. The screw connection has a threaded bolt 20, which is fixed in the center of the bearing element 10. The securing element 19 has a holding opening 21 (cf. Fig. 8 ) for placement on the threaded bolt 20. The securing element 19 also has a first holding surface 22 for engagement with an outer side 9a of the support angle 9 facing away from the formwork panel and a second holding surface 23 for engagement with an end face 9b of the support angle 9 facing away from the frame element 8. In addition, the bearing element 10 has a first wedge surface 24, against which a second wedge surface 25 of the securing element 19 bears in the secured state.

[0043] In the illustrated embodiment, the bearing element 10 has four bearing points 26, at which at least one support bracket 9 and up to four support brackets 9 (along with a corresponding number of frame elements 8) are arranged. The bearing points 26 each have two retaining flanges 27 with bearing openings 28, to which a bolt 29 for the support bracket 9 can be removably attached. The bolt 29 can be secured with a locking pin 30.

[0044] As from Fig. 1 As can be seen, the recess formwork also has corner formwork parts 31, which are arranged at the corners between two adjacent frame elements 8 of the recess formwork.

[0045] In Fig. 5 and Fig. 6 a variant is shown in which an additional mounting bracket 33 is provided between the frame element 8 and the support bracket 9.

[0046] From the Figuren 7 bis 10 The process of stripping is shown.

[0047] When the concrete element 2 has hardened, the corner formwork parts 31 of the recess formwork are first dismantled (see Fig. 7 ). A retaining nut 32, which is screwed onto the end of the threaded bolt 20, is then loosened in order to hold the securing element 19 on the bearing element 10 (cf. Fig. 8 ). The securing element 19 is then removed from the bearing element 10 (see Fig. 9 ). This releases the ability of the frame elements 8 to move and pivot. Thus, the concrete element 2 can be lifted away from the formwork 1. The frame element 8 can be moved and tilted simply by contact with the concrete element 2 in such a way that the lifting of the concrete element 2 is not blocked.

[0048] Fig. 1 shows a schematic representation of a battery formwork 34 known, for example, from WO 2017 / 174432 with formwork devices 35 which have the formwork 1 described above.

[0049] The battery mold 34 is used to manufacture (in Fig. 1 not shown) building elements and in particular precast concrete elements for buildings. The battery formwork 34 has a support frame 36 with spaced-apart support sections 37. The number of support sections 37 in Fig. 1is to be regarded only as an example and can be adapted to the circumstances. Furthermore, the battery formwork 34 comprises two support devices 38 in which the bulkheads 39 and the formwork devices 35 are received in a suspended and movable manner, i.e. displaceable in the present embodiment. The formwork devices 35 are located between the bulkheads 39. A cavity to be filled with concrete is formed between at least one bulkhead 39 and a formwork device 35, wherein the formwork device 35 preferably carries formwork elements (not shown) which determine the contour of the precast concrete part. The formwork elements can, for example, delimit door or window cutouts and also seal the cavity filled with concrete during concreting. The formwork elements can, for example, be attached to the formwork device 35 with magnetic holders.Additionally, a heating device and / or a vibrator (not shown) can also be mounted on the formwork device 35. The formwork device 35 is inserted between two bulkheads 39 and clamped to them during concreting. The number of support devices 38 of the bulkheads 6 and the formwork devices 2 is to be regarded as merely exemplary and can be varied depending on the circumstances. For example, formwork devices 35 can be provided for concreting the exterior walls, interior walls, floor, and roof of a house, so that the building elements for an entire building can be produced simultaneously with the battery formwork 34. The bulkheads 39 and the formwork devices 35 are clamped between two support devices 40. The number of support devices 40 is also to be regarded as merely exemplary and can be varied according to requirements.At least one support device 40 is movably received, ie, displaceably in the present embodiment, in the support devices 38. For stabilization, the formwork devices 35 and the support devices 40 can be connected and braced together in the concreting position by one or more rod-shaped connecting devices 41. The number of connecting devices 41 can be adapted to the circumstances. Instead of rod-shaped connecting devices 41, hydraulic connecting devices are also possible. However, the rod-shaped connecting devices 41 are particularly robust and easy to handle.Furthermore, the battery formwork 34 has a lifting device 42 with which at least one of the formwork devices 35 can be transferred from the lowered concreting position into a raised transport position, in which the formwork device 35 can be conveyed in a direction substantially perpendicular to the lifting direction via a formwork device 35 located in the concreting position. In the battery formwork 34, the formwork devices 35 are suspended from above into the support devices 38 so that, in the suspended state in the concreting position, they are spaced from the ground between the support sections 37. The design of the lifting device 42 can be adapted to requirements. If necessary, multiple lifting devices 9 can also be used.

[0050] The lifting device 42 is movable on two spaced-apart guide devices 43, which are designed here as guide rails, in a tensioning direction of the formwork devices 2. Furthermore, the guide devices 43 are arranged above the support devices 38 and parallel thereto. To make the battery formwork 34 more compact, the formwork devices 35 are attached to the support devices 38 at their upper end.

[0051] Instead of known formwork devices 35 as shown in WO 2017 / 174432, the formwork 1 according to the invention can be incorporated into the battery formwork 34.

Claims

1. Formwork (1) for the production of a concrete element (2), in particular, a wall or ceiling element, with an opening (7), in particular a window or door opening, comprising: - a formwork panel (3), - an opening formwork (6) with at least two frame elements (8) to delimit at least two portions of the opening (7), with at least two support brackets (9) for supporting the at least two frame elements (8) and with a mounting element (10) for mounting the at least two support brackets (9), whereby the mounting element (10) comprises at least two mounting points (26) for mounting the at least two support brackets (9), - a formwork-stripping device (11) for transferring the opening formwork from a formwork position to form the opening (7) into a formwork-stripping position for releasing the concrete element (2), - whereby the formwork-stripping device (11) comprises a sliding and tilting mechanism (12) for sliding the frame element (8) in one direction (13) parallel to the formwork panel (3) and for tilting the respective frame element (8) about a pivot axis extending substantially parallel to the formwork panel (3), whereby the sliding and tilting mechanism (12) of the formwork-stripping device (11) comprises a longitudinal guide (16) and a guide element (17) slidably and pivotably mounted therein, whereby the longitudinal guide (16) is provided on one of the support bracket (9) and mounting element (10) and the guide element (17) is provided at the other of the support bracket (9) and mounting element (10), - a securing element (19) for securing the support bracket (9) in the formwork position, - whereby the mounting element (10) comprises at least one first wedge surface (24) and the securing element (19) comprises at least one second wedge surface (25), wherein in the secured state of the securing element (19) the second wedge surface (25) of the securing element (19) rests on the first wedge surface (24) of the mounting element (10).

2. Formwork (1) according to Claim 1, characterized in that the pivot axis of the sliding and tilting mechanism (12) is substantially parallel to the longitudinal axis (15) of the one straight portion frame element (8) delimiting the opening (7).

3. Formwork (1) according to Claim 1 or 2, characterized in that the sliding and tilting mechanism (12) of the formwork-stripping device (11) comprises a longitudinal guide (16), in particular, an oblong hole, and a guide element slidably and pivotably mounted therein (17), in particular a bolt, wherein the longitudinal guide (16) is provided on one of the support bracket (9) and mounting element (10) and the guide element (17) is provided at the other of the support bracket (9) and mounting element (10).

4. Formwork (1) according to any one of the Claims 1 to 3, characterized in that the support bracket (9) at the end region facing the pivot axis comprises a rounding (18) to exempt the pivot of the support bracket (9).

5. Formwork (1) according to any one of the Claims 1 to 4, characterized in that the securing element (19) is connected to the mounting element (10) via a screw connection.

6. Formwork (1) according to Claim 5, characterized in that the screw connection comprises a threaded bolt (20), in particular, substantially in the centre of the mounting element (10), wherein the securing element (19) comprises a retaining hole (21) for attaching to the threaded bolt (20).

7. Formwork (1) according to any one of the Claims 1 to 6, characterized in that the securing element (19) comprises a first retaining surface (22) for resting on an outer side (9a) of the support bracket (9) facing away from the formwork panel and / or a second retaining surface (23) for resting on a front side (9b) of the support bracket (9) facing away from the frame element (8).

8. Formwork (1) according to any one of the Claims 1 to 7, characterized in that the mounting element (10) comprises four mounting points (26) for the mounting of four, support brackets (9).

9. Formwork (1) according to Claim 8, characterized in that the mounting points (26) each comprise at least one retaining flange (27) with a mounting opening (28).

10. Formwork (1) according to any one of the Claims 1 to 9, characterized in that the formwork (1) comprises another formwork panel, wherein the formwork panel and the other formwork panel at their first end regions are pivotably connected to each other, so that the formwork panel (3) and the other formwork panel can be transferred from a standing state to a lying state.

11. Battery mould comprising: - a formwork (1) according to any one of the Claims 1 to 10, - another formwork element, wherein a formwork chamber is provided between the formwork panel (3) of the formwork (1) and the other formwork element.

12. Method for the production of a concrete element (2), in particular a wall or ceiling element, with an opening (7), in particular, a window or door opening, with the steps: - provision of a formwork (1) according to any one of the Claims 1 to 10, - arrangement of opening formwork (8) in the formwork position, - casting of the concrete element (2) with the formwork (1), - separation of the concrete element (2) from the formwork (1), characterized in that - at least one frame element (8) of the opening formwork (6) when separating the concrete element (2) from the formwork (1) is slid in one direction parallel to the formwork panel (3) and tilted about a pivot axis extending substantially parallel to the formwork panel (3).