Formwork system for a building opening

Abstract

A formwork system (10) for a building opening contains at least one angle element (40, 50) and at least one profile element (11, 12, 13). At least some of the profile elements (11, 12, 13) have a profile element length (3, 4, 5) that is adjustable.

Description

background

[0001] The present invention relates to a formwork system for a building opening, for example a door or a window. State of the art

[0002] Document DE 20 2017 103 751 U shows a generic reveal formwork for forming an opening in a concrete element. This reveal formwork has two formwork panels arranged with their formwork surfaces at an angle to each other. The formwork surfaces adjoin one another at a common edge to form a corner. The formwork panels are connected with an angle connector, so that the formwork panels form an essentially square opening. Additional horizontal and vertical spindle supports are required to stiffen the reveal formwork. This previously known solution requires formwork panels that match the dimensions of the opening; therefore, they can only be used for openings with a precisely defined length and width. Document CN210177944U discloses a formwork system for a building opening, which shows telescopic beam elements between angle connectors.This formwork system can be used for building openings of various sizes because the telescopic beam elements can be adjusted to the desired width or height. The angle elements are clamped diagonally with tensioning elements. Vertical and horizontal support elements are also required, the height and width of which can be adjusted to the corresponding width or height of the building opening. Although this solution is universally applicable, it is complex to install. The angle elements must also be pre-tensioned so that the telescopic beam elements remain in place, making the interior inaccessible after the formwork system is installed. Alternatively, the angle connectors themselves can also have telescopic arms; see document GB 2 162 230 A.In addition, the telescopic beam elements of these previously known solutions are usually made of metal, which, in addition to the additional weight of the telescopic beam elements, also has the disadvantage that they become dirty during operation. For example, additional plate elements are provided on the outer edges of the telescopic beam elements. This solution is therefore complex to assemble and handle and requires the use of a crane, especially for larger building openings, due to the corresponding deadweight of the metal elements. Object of the invention

[0003] The object of the invention is to provide a formwork system for a building opening that can be used for building openings of various dimensions. The formwork system according to the invention can be used for various building openings. The formwork system can be easily installed and removed by one person, even manually. Furthermore, the object of the invention is to provide a formwork system that is not prone to soiling and can be easily and quickly cleaned after becoming soiled. Description of the invention

[0004] The object of the invention is achieved by a formwork system according to claim 1 or claim 7. Advantageous embodiments of the formwork system according to claim 1 are the subject of claims 2 to 6. Advantageous embodiments of the formwork system according to claim 7 are the subject of claims 8 to 10.

[0005] When the term "for example" is used in the following description, this term refers to exemplary embodiments and / or embodiments, which is not necessarily to be understood as a more preferred application of the teachings of the invention. Similarly, the terms "preferably" and "preferably" are to be understood as referring to one example from a set of exemplary embodiments and / or embodiments, which is not necessarily to be understood as a preferred application of the teachings of the invention. Accordingly, the terms "for example," "preferably," or "preferably" can refer to a plurality of exemplary embodiments and / or embodiments.

[0006] The following detailed description contains various embodiments of the formwork system according to the invention. The description of a specific formwork system is to be considered only as an example. In the description and claims, the terms "include," "comprise," and "have" are interpreted as "including, but not limited to."

[0007] A formwork system for a building opening comprises a first angle element, a second angle element, and at least one first profile element extending between the first angle element and the second angle element, wherein each of the first and second angle elements includes a first angle element leg and a second angle element leg. The second angle element leg of the first angle element has an angle element outer surface. The first angle element leg of the second angle element has an angle element outer surface. The first profile element has a first profile element edge and a second profile element edge, wherein the first profile element has a profile element length, wherein the profile element length extends from the first profile element edge to the second profile element edge.Each of the first and second angle elements contains a fastening element which is designed to fasten the first profile element to the first and second angle elements in such a way that the surface of the first profile element forms a flat surface with the angle element outer surface of the first angle element and the angle element outer surface of the second angle element. The first angle element leg of the first angle element contains a first fastening element which is designed to receive a second profile element. The second angle element leg of the second angle element contains a second fastening element which is designed to receive a third profile element. The second profile element has a profile element length and the third profile element has a profile element length.The profile element length of the first profile element, as well as at least one of the profile element lengths of at least one of the second profile element and the third profile element, are adjustable. At least one of the first, second, and third profile elements is designed as a dimensionally stable component. A dimensionally stable component refers, in particular, to a sheet element or a panel element, which, for example, contains a wood-based material or a plastic.

[0008] In particular, the formwork system can have first and second angle elements. A first profile element, which is adjustable in length, can be mounted flush between the first and second angle elements. A second and third profile element can be mounted to the still free ends of the first and second angle elements, whereby the length of the second and third profile elements is also adjustable. The term "adjustable" means that the length of each of the first, second or third profile elements is adaptable. In other words, profile elements of different lengths can be used. The length of the profile elements can be shortened, for example, by cutting. In particular, the dimensionally stable structural element can be easily cut to the desired length.

[0009] The profile elements can be easily cut to size on site to create a formwork system with the correct length and height.

[0010] According to one embodiment, the first profile element is designed as a plate element with a rectangular surface. Such a profile element can be used in a variety of ways. Therefore, such a profile element is usually readily available on a construction site and does not need to be ordered separately. If available, a formwork panel can be used as the profile element. According to one embodiment, the profile element contains a plastic; in particular, the profile element can be designed as a plastic profile.

[0011] According to one embodiment, the second profile element and the third profile element each contain a first profile sub-element and a second profile sub-element. In particular, at least one of the first or second profile sub-elements can have a predetermined profile sub-element length. The profile sub-element with the predetermined profile sub-element length can be coupled to a profile sub-element whose profile sub-element can be easily modified on-site, in particular, can be cut to the required profile sub-element length.

[0012] According to one embodiment, at least one of the first profiled part elements is designed as a panel element with a rectangular surface. Such a panel element with a rectangular surface requires little space and can therefore be kept in stock on a construction site.

[0013] According to one embodiment, at least one of the second profile sub-elements comprises a frame element. Such a frame element can in particular comprise a skeleton element made of a high-strength material, for example a metal. The skeleton element can be connected to at least one sheathing panel. The sheathing panel is in particular designed such that concrete does not adhere to its surface, so that the profile sub-element can be easily removed after completion of the concrete wall because no concrete can adhere to the surface of the sheathing panel. According to one embodiment, the sheathing panel contains a plastic; in particular, the profile element can be designed as a plastic profile. For example, the sheathing panel can contain polypropylene or polyethylene.

[0014] According to one embodiment, a third angle element adjoins the second profile element, and a fourth angle element adjoins the third profile element, with a fourth profile element arranged between the third and fourth angle elements. According to this embodiment, a formwork system is available for a square opening, for example, for a window.

[0015] A formwork system for a building opening according to one embodiment contains a first angle element, a second angle element, and at least one first profile element extending between the first angle element and the second angle element. Each of the first and second angle elements contains a first angle element leg and a second angle element leg. The first angle element leg of the first angle element has an angle element outer surface. The first angle element leg of the second angle element has an angle element outer surface. The first profile element contains a first profile part element and a second profile part element, wherein the first profile part element and the second profile part element form a common corner. Each of the first and second profile part elements has a rectangular surface, wherein the first profile part element has a first profile element edge and a second profile element edge.The first profile element has a first profile element length, wherein the first profile element length extends from the first profile element edge to the second profile element edge of the first profile element. The second profile element has a first profile element edge and a second profile element edge. The second profile element has a second profile element length, wherein the first profile element length extends from the first profile element edge to the second profile element edge of the second profile element.Each of the first and second angle elements has a fastening element configured to fasten the first profile element to the first and second angle elements in such a way that the surface of the first profile element forms a flat surface with the angle element outer surface of the first angle element, and the surface of the second profile element forms a flat surface with the angle element outer surface of the second angle element. At least one of the profile element lengths is adjustable. According to this embodiment, a formwork system for a square opening, for example, for a window, is available.

[0016] According to one embodiment, the second angle element legs of the first angle element and the second angle element are connected to a second profile element such that a common closed outer surface is formed by the first and second angle elements and the first and second profile elements. According to one embodiment, the outer surface is quadrangular. According to one embodiment, at least one of the angle element outer surfaces contains a planking panel.

[0017] A profile element or profile part element or angle element that contains a planking panel can contain a component that ensures the strength and dimensional stability of the formwork system and another component that can be particularly easily separated from the concrete after completion of the concreting work.

[0018] The use of telescopic, or in other words adjustable, beam elements, as described in CN210177944U, requires that each adjustable beam element, which is usually made of steel, must be operated either for the assembly / disassembly of the formwork system and / or to achieve other desired dimensions. In addition to the increased assembly effort, the use of such adjustable beam elements can have the following disadvantages: All moving components (be they turnbuckles, threaded rods, or telescopic guides) have guide and sliding planes. These guide and sliding planes become contaminated with concrete, concrete water, or dust during harsh construction site use. Contamination can not only impair the sliding properties along the sliding planes, but can also damage the sliding surfaces to such an extent that they are no longer usable and therefore no longer functional.

[0019] The previously known telescopic beam elements are solidly constructed and made of metal, usually steel. Due to their inherent weight, they are impossible to assemble or disassemble, especially by one person alone. Furthermore, formwork systems with adjustable components are known to transfer the concrete pressure to the opposing element of the formwork system.

[0020] The inventive formwork system transfers the forces caused by the concrete pressure to the stable wall formwork. This allows the inventive formwork system to be constructed significantly slimmer and lighter.

[0021] Another disadvantage has been that formwork systems containing adjustable beam elements require a large number of components, with the number of additional components having to be increased by at least the number of adjustable components. More components mean higher procurement costs and more effort in handling the formwork system on site. For example, document CN210177944U requires one diagonally arranged screw tensioning element (10) and two adjustment rods (11) to hold the frame together. In addition, a telescopic beam element (3) is used for the planking.

[0022] According to the invention, no length-adjustable components for tensioning, locking, or supporting are required. Supporting the first, second, and third profile elements is dispensed with, which significantly simplifies assembly, disassembly, and dimensional adjustment. Each of the first, second, and third profile elements thus consists of only a single component. In other words, at least one of the first, second, or third profile elements is designed as a single, dimensionally stable component. Each of the first, second, or third profile elements can be individually adapted by appropriate cutting.

[0023] In addition, the profile elements according to the invention have a low dead weight, allowing for efficient relocation, assembly, or disassembly of a formwork opening. A single person can perform the assembly, disassembly, or relocation quickly and cost-effectively without the need for a crane. Brief description of the drawings

[0024] The formwork system according to the invention is illustrated below using several exemplary embodiments. Fig. 1 a view of a formwork system according to a first embodiment, Fig. 2 a section through the formwork system according to Fig. 1 along the section line BB, Fig. 3 a section through the formwork system according to Fig. 1 along the section line CC, Fig. 4 a detail E of the formwork system according to Fig. 1 , Fig. 5 a view of the formwork system according to the first embodiment, Fig. 6 a detail A of the formwork system according to Fig. 5 , Fig. 7 a view of the formwork system according to the first embodiment, Fig. 8 a detail D of the formwork system according to Fig. 7 , Fig. 9 a detail of an angle element of the formwork system according to the first embodiment, Fig. 10a view of a formwork system according to a first embodiment in the installed state from the front, Fig. 11 a side view of the formwork system according to Fig. 10 , Fig. 12 a side view of the formwork system according to Fig. 10 , Fig. 13 a detail of a profile element for a formwork element, Fig. 14 a view of a formwork system according to a second embodiment, Fig. 15 a view of a formwork system according to a third embodiment, Fig. 16 a view of a formwork system according to a fourth embodiment, Fig. 17 a detail of a formwork element for a formwork system according to a fourth embodiment. Detailed description of the drawings

[0025] Fig. 1shows a first embodiment of a formwork system 10. The formwork system 10 for a building opening contains a first angle element 40, a second angle element 50 and at least one first profile element 11 extending between the first and second angle elements 40, 50.

[0026] Each of the first and second angle elements 40, 50 includes a first angle element leg 41, 51 and a second angle element leg 42, 52, wherein the second angle element leg 42 of the first angle element 40 has an angle element outer surface 49, wherein the first angle element leg 51 of the second angle element 50 has an angle element outer surface 56.

[0027] The first profile element 11 has a first profile element edge 1 and a second profile element edge 2, as well as a profile element length 5. The profile element length 5 extends from the first profile element edge 1 to the second profile element edge 2. According to this exemplary embodiment, the first profile element 11 is designed as a plate element with a rectangular surface.

[0028] Each of the first and second angle elements 40, 50 contains a fastening element 45, 54, which is designed to fasten the first profile element 11 to the first and second angle elements 40, 50. According to the present exemplary embodiment, the first angle element 40 has a first fastening element 44 and a second fastening element 45. The second fastening element 45 is designed to fasten the first profile element edge 1 of the first profile element 11 to the first angle element 40. According to the present exemplary embodiment, the second angle element 50 has a first fastening element 54 and a second fastening element 55. The first fastening element 54 is designed to fasten the second profile element edge 2 of the first profile element 11 to the second angle element 50.The surface 6 of the profile element 11 forms a flat surface with the angle element outer surface 49 of the first angle element 50 and the angle element outer surface 56 of the second angle element 50.

[0029] The first angle element leg 41 of the first angle element 40 contains a first fastening element 44, which is designed to receive a second profile element 12. The second angle element leg 52 of the second angle element 50 contains a second fastening element 55, which is designed to receive a third profile element 13. The second profile element 12 has a profile element length 3, see Fig. 10 . The third profile element 13 has a profile element length 4, see Fig. 10 . The second profile element 12 is thus connected to the first angle element 40. According to Fig. 1The second profile element 12 comprises a first profile element 21 and a second profile element 22. The first profile element 21 is designed as a plate element with a rectangular surface. A third profile element 13 is also connected to the second angle element 50. According to Fig. 1 the third profile element 13 comprises a first profile sub-element 31 and a second profile sub-element 32. The first profile sub-element 31 is designed as a plate element with a rectangular surface.

[0030] According to the present exemplary embodiment, the second profile element 12 thus comprises a first profile sub-element 21 and a second profile sub-element 22. The first profile sub-element 21 has a first profile sub-element edge 23 and a second profile sub-element edge 24. The first profile sub-element 21 has a profile sub-element length 25, wherein the profile sub-element length 25 of the first profile sub-element 21 extends from its first profile sub-element edge 23 to its second profile sub-element edge 24. The second profile sub-element 22 has a first profile sub-element edge 26 and a second profile sub-element edge 27. The second profile sub-element 22 has a profile sub-element length 28, wherein the profile sub-element length 28 of the second profile sub-element 22 extends from its first profile sub-element edge 26 to its second profile sub-element edge 27.

[0031] According to the present embodiment, the profile element length 3 results from the sum of the profile element length 25 of the first profile element 21 and the profile element length 28 of the second profile element 22.

[0032] According to the present exemplary embodiment, the third profile element 13 comprises a first profile sub-element 31 and a second profile sub-element 32. The first profile sub-element 31 has a first profile sub-element edge 33 and a second profile sub-element edge 34. The first profile sub-element 31 has a profile sub-element length 35, wherein the profile sub-element length 35 of the first profile sub-element 31 extends from its first profile sub-element edge 33 to its second profile sub-element edge 34. The second profile sub-element 32 has a first profile sub-element edge 36 and a second profile sub-element edge 37. The second profile sub-element 32 has a profile sub-element length 38, wherein the profile sub-element length 38 of the second profile sub-element 32 extends from its first profile sub-element edge 36 to its second profile sub-element edge 37.

[0033] According to the present embodiment, the profile element length 4 results from the sum of the profile element length 35 of the first profile element 31 and the profile element length 38 of the second profile element 32.

[0034] The profile element length 5 of the first profile element 11 is adjustable. In other words, a first profile element 11 with any profile element length 5 can be attached to the first and second fastening elements 45, 54 of the corresponding first and second angle elements 40, 50. Thus, the profile element 11 can be used according to the desired overall length L, overall width B, or overall height H of the formwork system. See also Fig. 10 , 14 .

[0035] The profile element length 3 of the second profile element 12 and the profile element length 4 of the third profile element 13 are also adjustable. If the second profile element 12 comprises a first profile element 21 and a second profile element 22, in particular the profile element length 25 of the first profile element 21 can be adjusted. For example, the first profile element 21 can be cut to the desired profile element length 25. According to the present embodiment, the second profile element 22 is a prefabricated structural element. If the third profile element 13 comprises a first profile element 31 and a second profile element 32, in particular the profile element length 35 of the first profile element 31 can be adjusted. For example, the first profile element 31 can be cut to the desired profile element length 35.According to the present embodiment, the second profile element 32 is a prefabricated component. In particular, the second profile element 22 and the second profile element 32 can be constructed identically. Fig. 17 shows an embodiment of such a profile part element 22, 32. For example, at least one of the first or second profile part elements 22, 32 can be designed as a frame element.

[0036] The first angle element 40 contains at least one reinforcing element, in Fig. 1 A first reinforcing element 47 and a second reinforcing element 48 are shown as examples. The second angle element 50 contains at least one reinforcing element, in Fig. 1 A first reinforcing element 57 and a second reinforcing element 58 are shown as examples.

[0037] Fig. 2 shows a section through the formwork system according to Fig. 1along the section line BB, in which the first profile element 11 is visible in a sectional view, as well as the second angle element 50 and the third profile element 13 in a side view. In addition, a wall formwork 7 is shown schematically, to which the formwork system 10 is attached. The profile element 11 is connected to the second angle element 50 via the first fastening element 54, which is Fig. 9is shown in detail. The second angle element 50 according to this embodiment is connected to the wall formwork 7 by means of the first reinforcing element 57 and the second reinforcing element 58. For example, the first and second reinforcing elements 57, 58 can contain openings for receiving fastening means (not shown), for example screws or nails. By means of the fastening means(s), the first and second reinforcing elements 57, 58 are fastened to the wall formwork 7. According to the present embodiment, the first and second reinforcing elements 57, 58 have a triangular cross-section, which in the Fig. 6 shown detail for the second reinforcing element 58 is shown more clearly.

[0038] In Fig. 2the third profile element 13 is also visible. According to the present embodiment, the third profile element 13 comprises the first profile element 31 and the second profile element 32. The first profile element 31 extends from the first profile element edge 33 to the second profile element edge 34. The profile element length 35 extends from the first profile element edge 33 to the second profile element edge 34, as in Fig. 1 The first profile element 31 of the third profile element 13 is designed as a plate element with a rectangular surface. The first profile element 31 adjoins the second angle element 50, more precisely, its second angle element leg 52.

[0039] In Fig. 2The inner surface of the angle element opposite the outer surface 59 of the angle element is visible. According to this exemplary embodiment, the inner surface of the angle element contains an angle element recess 53. The second angle element leg 52 can comprise a frame element and a sheathing plate 9. This design has the advantage that the frame element can be made of a material that can ensure the load-bearing capacity of the formwork system, and the sheathing plate 9 contains a material that can be easily removed from the concrete after the concreting work. The frame element can have the illustrated angle element recess 53 to reduce weight. According to an exemplary embodiment not shown, the frame element does not contain a recess.

[0040] The first profile element 31 is connected to the second angle element 50 by means of the second fastening element 55. For example, the first profile element 31 can be connected to the second fastening element 55 by means of screws or nails. The second fastening element 55 is designed as a tab, which adjoins the free end of the second angle element leg 52. In particular, the second fastening element 55 can be arranged pivotably about the free end of the second angle element leg 52, as shown, for example, in detail E according to Fig. 4 for the corresponding fastening element of the second profile part element 32 or in detail D of the Fig. 8 .

[0041] The second profile element 32 is connected to the first profile element 31 such that the second profile element edge 34 of the first profile element 31 adjoins the first profile element edge 36 of the second profile element 32. According to the present embodiment, a first fastening element 65 is attached to the first profile element edge 36 of the second profile element 32. The first fastening element 65 serves to couple the first profile element 31 to the second profile element 32.

[0042] The second profile element 32 can be designed as a frame element. According to this exemplary embodiment, the profile element inner surface contains a plurality of profile element recesses 64. The second profile element 32 can comprise a frame element and a sheathing plate 9. This design has the advantage that the frame element can be made of a material that can ensure the load-bearing capacity of the formwork system, and the sheathing plate 9 contains a material that can be easily removed from the concrete after concreting. To reduce weight, the frame element can have a plurality of profile element recesses 64; in the present exemplary embodiment, four profile element recesses 64 are visible. According to an exemplary embodiment not shown, the frame element contains no recesses or a different number of recesses.

[0043] According to the present embodiment, the second profile part element 32 stands with its second profile part element edge 37 on a surface not further specified.

[0044] According to the present embodiment, the second profile part element 32 contains a plurality of reinforcing elements 39, which are arranged in Fig. 1 are best visible. Of the five reinforcement elements shown as examples, Fig. 1 For simplicity, only one is provided with a reference symbol. The number of reinforcement elements 39 may differ from the number shown in individual cases. According to an embodiment not shown, the second profile element 32 may also not contain a single reinforcement element.

[0045] The Fig. 1 The second profile part element 22 of the second profile element 12 shown can have the same structure as the second profile part element 32 of the third profile element 13.

[0046] Fig. 3 shows a section through the formwork system according to Fig. 1 along the section line CC, which shows the second profile element 22 of the second profile element 12 and the second profile element 32 of the third profile element 13 in section. A wall formwork 7 is shown, to which the formwork system 10 is connected in the installed state. In particular, Fig. 3 the arrangement of one reinforcing element 29 of the second profile part element 22 and one reinforcing element 39 of the second profile part element 32.

[0047] Fig. 4 shows a detail E of the formwork system according to Fig. 1, in which the lowermost part of the second profile element 32 of the third profile element 13 is shown. The detail thus shows the second profile element edge 37 as well as a part of the reinforcing element 39 closest to the second profile element edge 37. According to this embodiment, a second fastening element 62 is attached to the second profile element edge 37 and is arranged so as to be pivotable about the second profile element edge 37.

[0048] Fig. 5shows a perspective view of the formwork system 10 according to the first exemplary embodiment. The first profile element 11, the first angle element 40, and the second profile element 12 are arranged in this illustration such that their outer sides are visible. The outer side forms the support surface, recess surface, or contact surface for a concrete masonry in which a building opening is to be installed, in particular a door or window. The inner side of the second angle element 50 is partially visible. The third profile element 13, which consists of the first profile element 31 and the second profile element 32, adjoins the second angle element 50. The wall formwork is omitted from this illustration.

[0049] Fig. 6 shows a detail A of the formwork system according to Fig. 5, which shows a portion of the second angle element 50. The third profile element 13 adjoins the angle element 50, wherein the third profile element 13 consists of the first profile element 31 and the second profile element 32. The first profile element 32 is fully visible, while only a portion of the second profile element 32 is shown.

[0050] According to the present embodiment, the first profile sub-element 31 also contains a reinforcing element 19. The reinforcing elements 19, 29, 39 according to the first embodiment contain a first reinforcing element leg, a second reinforcing element leg, and a connecting strut that connects the first reinforcing element leg to the second reinforcing element leg. At least one of the first and second reinforcing element legs can contain at least one opening for receiving a fastening means. The reinforcing element 19 is provided with a plurality of openings located on the first reinforcing element leg and on the second reinforcing element leg. The reinforcing element 19 is fastened with fastening means both to the wall formwork 7 and to the first profile sub-element 21, 31. The profile element 11 can also contain a reinforcing element, which is not shown in the drawing.

[0051] In Fig. 6the inside of the second angle element 50 is shown, therefore this illustration shows the inside belonging to the angle element outer surface 59. The inside has a flat inner base surface, to which a left and a right tab are connected. The tab serves to stiffen the angle element outer surface, which can be designed with thin walls. According to the present embodiment, a sheathing plate 9 is placed on the angle element outer surface, which forms the surface that comes into contact with the concrete. The sheathing plate 9 has a surface to which no concrete adheres, so that after completion of the concrete wall, the formwork system can be easily removed from the concrete wall. The sheathing plate 9 can contain a plastic or be made of plastic.The sheathing panel 9 does not bond with the concrete and can therefore be easily removed after the concrete wall has been completed and has cured accordingly. If the sheathing panel 9 becomes subject to wear, it can be easily replaced as needed. For example, the sheathing panel 9 can be made of polyethylene or polypropylene, or an equivalent plastic. The angle element can be made of metal.

[0052] According to an embodiment not shown, the outer surface of the angle element is designed for direct contact with the concrete being poured. According to this embodiment not shown, the sheathing plate 9 can be omitted.

[0053] Forces introduced into the formwork system by the concreting pressure can be transferred to the wall formwork 7 via the angle elements and the profile elements, which contain corresponding reinforcement elements. For this purpose, the angle elements, the profile elements, and / or the angle elements are attached to the wall formwork using fasteners. The fasteners can include, in particular, screws or nails. The fasteners are not shown in the drawings. Additional bracing, such as cross-beam elements, is not required.

[0054] Fig. 7shows a view of the formwork system according to the first embodiment in a perspective illustration from below. The first profile element 11 and the first angle element 40 are arranged in this illustration such that their inner side is at least partially visible. The outer side of the second profile element 12 is visible, which forms the support surface or bearing surface for a concrete masonry in which a building opening is to be made, in particular a door or window. The inner side of the second angle element 50 is visible. The third profile element 13, which consists of the first profile part element 31 and the second profile part element 32, is connected to the second angle element 50. The wall formwork is omitted from this illustration.

[0055] Fig. 8 shows a detail D of the formwork system according to Fig. 7, in which a part of the second profile element 32 of the profile element 13 adjoins the second profile element edge 37. In Fig. 7 Also visible is the fastening element 66, which is arranged on the second profile element edge 37. The fastening element 66 is pivotable with respect to the second profile element edge 37. In particular, the fastening element 66 is pivotable through an angle of up to and including 90 degrees. In a first pivot position, the fastening element 66 is arranged parallel to the reinforcing element 39; in a second pivot position, the fastening element 66 is arranged substantially parallel to the surface spanned by the second profile element 32, which is not illustrated in the drawing.

[0056] According to the present embodiment, the fastening element 66 includes a locking element 67, for example, a pin element. The locking element 67 is arranged in an opening of the fastening element 66. The locking element 67 can be removed if the fastening element 66 is to be moved from the first pivot position to the second pivot position or vice versa. Once the desired pivot position is reached, the locking element 67 is reinserted into the opening. The fastening elements 44, 45, 54, 55 of the angle elements 40, 50 and of the profile part element 22 can be constructed identically.

[0057] Fig. 9 shows a detail of an angle element of the formwork system according to the first embodiment. The first angle element 40 and the second angle element 50 have, according to the Fig. 1The illustrated embodiment of the formwork system 10 has the same structure. The following description of an angle element is therefore equally applicable to the first and second and any further angle elements 40, 50.

[0058] The angle element 50 according to Fig. 9 Contains a first angle element leg 51 and a second angle element leg 52. Each of the angle element legs 51, 52 has an angle element outer surface 56, 59 formed as a flat surface. The angle element outer surface can be designed to receive a sheathing plate 9, which can rest as sheathing on the angle element outer surface 56, 59, so that the sheathing plate 9 covers the angle element outer surface 56, 59 in the installed state. The sheathing plate 9 can also be omitted. According to this exemplary embodiment, the sheathing plate 9 forms the angle element outer surface 56, 59.

[0059] According to the present embodiment, the inner surface of the angle element opposite the corresponding outer surface of the angle element is bounded by two corner stiffening elements, which can be provided to increase the stability of the angle element. At least one of the corner stiffening elements can contain at least one opening for receiving a fastening means.

[0060] The angle element 50 contains at least one reinforcing element, in Fig. 9 a first reinforcing element 57 and a second reinforcing element 58.

[0061] Fig. 10 shows a view of the formwork system 10 according to the first embodiment in the installed state from the front, which is attached to a wall formwork 7. In particular, Fig. 10That both the length L and the height H of the formwork system are adjustable. Each of the profile element lengths 3, 4, 5 can be changed by using profile elements 11, 12, 13, which are variable in their dimensions.

[0062] Fig. 11 shows a side view of the formwork system 10 according to Fig. 10 , which is attached on one side to a wall formwork 7.

[0063] Fig. 12 shows a side view of the formwork system 10 according to Fig. 10 , which is attached to both sides of a wall formwork 7, 8, so that the formwork system 10 extends between the wall formwork 7, 8.

[0064] Fig. 13 shows a detail of one of the first or second profile elements 12, 13 for a formwork system 10 according to the first embodiment, to the description Fig. 1 and 2can be referred to here. Each of the second partial profile elements 22, 32 can have a planking plate 9 on the outer surface, as described in connection with Fig. 1 or Fig. 2 described.

[0065] Fig. 14 shows a view of a formwork system 20 according to a second exemplary embodiment. The formwork system 20 for a building opening contains a first angle element 40, a second angle element 50, and at least one first profile element 11 extending between the first and second angle elements 2. The first profile element 11 is designed as a panel element with a rectangular surface. The first profile element 11 has a first profile element edge and a second profile element edge, as well as a profile element length. The profile element length extends from the first profile element edge to the second profile element edge.

[0066] Each of the angle elements 40, 50 has a fastening element designed to fasten the first and second profile element edges of the first profile element 11 to the corresponding first or second angle element 40, 50. The profile element length 5 of the profile element 11 is adjustable. In other words, a first profile element 11 with any desired profile element length 5 can be fastened to the first and second fastening elements of the corresponding first and second angle elements 40, 50. Thus, the profile element 11 can be used according to the desired overall length, overall width, or overall height of the formwork system.

[0067] The formwork system 20 includes a third angle element 70 and a fourth angle element 80 as well as at least one fourth profile element 14 extending between the third angle element 70 and the fourth angle element 80.

[0068] In addition, the formwork system 20 contains a second profile element 12, which is arranged between the first angle element 40 and the third angle element 70.

[0069] The formwork system 20 also includes a third profile element 13, which is arranged between the second angle element 50 and the fourth angle element 80.

[0070] Each of the angle elements 40, 50, 70, 80 can be used in connection with Fig. 1-13 correspond to the angle elements described.

[0071] Fig. 15shows a view of a formwork system 100 according to a third exemplary embodiment. The formwork system 100 for a building opening contains a first angle element 103, a second angle element 153, and at least one first profile element 110 extending between the first angle element 103 and the second angle element 153. Each of the first and second angle elements 103, 153 contains a first angle element leg 101, 151 and a second angle element leg 102, 152. The first angle element leg 101 of the first angle element 103 has an angle element outer surface 106. The first angle element leg 151 of the second angle element 153 has an angle element outer surface 156. The first profile element 110 includes a first profile sub-element 111 and a second profile sub-element 121. The first profile sub-element 111 and / or the second profile sub-element 121 can be formed as a plate element.The first profile sub-element 111 and the second profile sub-element 121 form a common corner. Each of the first and second profile sub-elements 111, 121 has a rectangular surface, wherein the first profile sub-element 111 has a first profile sub-element edge 113 and a second profile sub-element edge 114. The first profile sub-element 111 has a first profile sub-element length 115, wherein the first profile sub-element length 115 extends from the first profile sub-element edge 113 to the second profile sub-element edge 114 of the first profile sub-element 111. The second profile sub-element 121 has a second profile sub-element length 125, wherein the second profile sub-element length 125 extends from the first profile sub-element edge 123 to the second profile sub-element edge 124 of the second profile sub-element 121.Each of the first and second angle elements 103, 153 has a fastening element 104, 154, which is designed to fasten the first profile element 110 to the first and second angle elements 103, 153 in such a way that the surface 116 of the first profile element 111 forms a flat surface with the angle element outer surface 106 of the first angle element 103, and the surface 126 of the second profile element 121 forms a flat surface with the angle element outer surface 156 of the second angle element. At least one of the profile element lengths 115, 125 is adjustable. In other words, a first profile element 111 with any profile element length 115 can be combined with a second profile element 121 with any profile element length 125.

[0072] Thus, the first profile element 110 can be used according to the desired overall length or overall width of the formwork system 100. The first profile element 111 is arranged, in particular, at an angle of 90 degrees to the second profile element 121. According to the present embodiment, the second profile element edge 114 of the first profile element 111 rests on the inner surface of the second profile element 121. The inner surface is arranged opposite the surface 126.

[0073] In particular, the second angle element legs 102, 152 of the first angle element 103 and the second angle element 153 can be connected to a second profile element 130 such that a common closed outer surface is formed by the first and second angle elements 103, 153 and the first and second profile elements 110, 130. In particular, the outer surface of the formwork system can be quadrangular.

[0074] According to one embodiment, at least one of the angle element outer surfaces contains a planking plate 119.

[0075] As in the previous embodiments, each of the first and second angle elements 103, 153 may each include a first and a second reinforcing element 107, 108, 157, 158.

[0076] According to the present embodiment, a second profile element 120 is provided, which is fastened to the second angle element leg 102 of the first angle element 102 and to the second angle element leg 152 of the second angle element 153, so that a building opening closed on all sides is formed, for example for a window. The second profile element 120 contains a third profile element 131 and a fourth profile element 141. The third profile element 131 and / or the fourth profile element 141 can be designed as a plate element. The third profile element 131 and the fourth profile element 141 form a common corner. Each of the third and fourth profile elements 131, 141 has a rectangular surface, wherein the third profile element 131 has a first profile element edge 133 and a second profile element edge 134.The third profile sub-element 131 has a third profile sub-element length 135, wherein the third profile sub-element length 135 extends from the first profile sub-element edge 133 to the second profile sub-element edge 134 of the third profile sub-element 131. The fourth profile sub-element 141 has a first profile element edge 143 and a second profile element edge 144. The fourth profile sub-element 141 has a fourth profile sub-element length 145, wherein the fourth profile sub-element length 145 extends from the first profile sub-element edge 143 to the second profile sub-element edge 144 of the fourth profile sub-element 141.Each of the first and second angle elements 103, 153 has a fastening element 105, 155, which is designed to fasten the second profile element 120 to the first and second angle elements 103, 153 in such a way that the surface 136 of the third profile element 131 forms a flat surface with the angle element outer surface 109 of the first angle element 103, and the surface 146 of the fourth profile element 141 forms a flat surface with the angle element outer surface 159 of the second angle element 153. At least one of the third and fourth profile element lengths 135, 145 is adjustable. In other words, a third profile element 131 with any profile element length 135 can be combined with a fourth profile element 141 with any profile element length 145.

[0077] Each of the first, second, third, and fourth profile sub-elements 111, 121, 131, 141 may include a reinforcing element. According to the present embodiment, the first profile sub-element 111 includes a reinforcing element 112, and the fourth profile sub-element includes a reinforcing element 142.

[0078] Fig. 16 shows a view of a formwork system 90 according to a fourth embodiment, which differs from the formwork system 10 of the first embodiment in that a fifth profile element 15 and a sixth profile element 16 are connected to the free ends of the profile elements 12, 13. A third angle element 70 and a fourth angle element 80 are connected to the fifth profile element 15 and the sixth profile element 16. A fourth profile element 14 extends between the third angle element 70 and the fourth angle element 80.

[0079] The formwork system 90 for a building opening includes a first angle element 40, a second angle element 50, and at least one first profile element 11 extending between the first and second angle elements 40, 50. The formwork system 90 for a building opening further includes a third angle element 70, a fourth angle element 80, and at least one fourth profile element 14 extending between the third and fourth angle elements 70, 80.

[0080] Each of the first and second angle elements 40, 50 includes a first angle element leg 41, 51 and a second angle element leg 42, 52, wherein the second angle element leg 42 of the first angle element 40 has an angle element outer surface 49, wherein the first angle element leg 51 of the second angle element 50 has an angle element outer surface 56.

[0081] The first profile element 11 has a first profile element edge 1 and a second profile element edge 2, as well as a profile element length 5. The profile element length 5 extends from the first profile element edge 1 to the second profile element edge 2. According to this exemplary embodiment, the first profile element 11 is designed as a plate element with a rectangular surface.

[0082] Each of the first and second angle elements 40, 50 contains a fastening element 45, 54, which is designed to fasten the first profile element 11 to the first and second angle elements 40, 50. According to the present exemplary embodiment, the first angle element 40 has a first fastening element 44 and a second fastening element 45. The second fastening element 45 is designed to fasten the first profile element edge 1 of the first profile element 11 to the first angle element 40. According to the present exemplary embodiment, the second angle element 50 has a first fastening element 54 and a second fastening element 55. The first fastening element 54 is designed to fasten the second profile element edge 2 of the first profile element 11 to the second angle element 50.The surface 6 of the profile element 11 forms a flat surface with the angle element outer surface 49 of the first angle element 50 and the angle element outer surface 56 of the second angle element 50.

[0083] The first angle element leg 41 of the first angle element 40 contains a first fastening element 44, which is designed to receive a second profile element 12. The second angle element leg 52 of the second angle element 50 contains a second fastening element 55, which is designed to receive a third profile element 13. The second profile element 12 has a profile element length 3, see Fig. 10 . The third profile element 13 has a profile element length 4, see Fig. 10 . The second profile element 12 is thus connected to the first angle element 40. According to Fig. 16The second profile element 12 comprises a first profile element 21 and a second profile element 22. The first profile element 21 is designed as a plate element with a rectangular surface. A third profile element 13 is also connected to the second angle element 50. According to Fig. 1 the third profile element 13 comprises a first profile sub-element 31 and a second profile sub-element 32. The first profile sub-element 31 is designed as a plate element with a rectangular surface.

[0084] According to the present exemplary embodiment, the second profile element 12 thus comprises a first profile sub-element 21 and a second profile sub-element 22. The first profile sub-element 21 has a first profile sub-element edge 23 and a second profile sub-element edge 24. The first profile sub-element 21 has a profile sub-element length 25, wherein the profile sub-element length 25 of the first profile sub-element 21 extends from its first profile sub-element edge 23 to its second profile sub-element edge 24. The second profile sub-element 22 has a first profile sub-element edge 26 and a second profile sub-element edge 27. The second profile sub-element 22 has a profile sub-element length 28, wherein the profile sub-element length 28 of the second profile sub-element 22 extends from its first profile sub-element edge 26 to its second profile sub-element edge 27.

[0085] According to the present embodiment, the profile element length 3 results from the sum of the profile element length 25 of the first profile element 21 and the profile element length 28 of the second profile element 22.

[0086] According to the present exemplary embodiment, the third profile element 13 comprises a first profile sub-element 31 and a second profile sub-element 32. The first profile sub-element 31 has a first profile sub-element edge 33 and a second profile sub-element edge 34. The first profile sub-element 31 has a profile sub-element length 35, wherein the profile sub-element length 35 of the first profile sub-element 31 extends from its first profile sub-element edge 33 to its second profile sub-element edge 34. The second profile sub-element 32 has a first profile sub-element edge 36 and a second profile sub-element edge 37. The second profile sub-element 32 has a profile sub-element length 38, wherein the profile sub-element length 38 of the second profile sub-element 32 extends from its first profile sub-element edge 36 to its second profile sub-element edge 37.

[0087] According to the present embodiment, the profile element length 4 results from the sum of the profile element length 35 of the first profile element 31 and the profile element length 38 of the second profile element 32.

[0088] Each of the third and fourth angle elements 70, 80 includes a first angle element leg 71, 81 and a second angle element leg 72, 82, wherein the second angle element leg 72 of the third angle element 70 has an angle element outer surface 79, wherein the first angle element leg 81 of the second angle element 80 has an angle element outer surface 86.

[0089] The fourth profile element 14 has a first profile element edge 1 and a second profile element edge 2, as well as a profile element length 5, which correspond to the first profile element 11 and are therefore given the same reference numerals. The profile element length 5 extends from the first profile element edge 1 to the second profile element edge 2. According to this exemplary embodiment, the fourth profile element 14 is designed as a plate element with a rectangular surface.

[0090] Each of the third and fourth angle elements 70, 80 contains a fastening element 75, 84, which is designed to fasten the fourth profile element 14 to the third and fourth angle elements 70, 80. According to the present exemplary embodiment, the third angle element 70 has a first fastening element 74 and a second fastening element 75. The second fastening element 75 is designed to fasten the first profile element edge 1 of the fourth profile element 14 to the third angle element 70. According to the present exemplary embodiment, the fourth angle element 80 has a first fastening element 84 and a second fastening element 85. The first fastening element 84 is designed to fasten the second profile element edge 2 of the fourth profile element 14 to the fourth angle element 80.The surface 6 of the fourth profile element 14 forms a flat surface with the angle element outer surface 79 of the first angle element 70 and the angle element outer surface 86 of the second angle element 80.

[0091] The first angle element leg 71 of the first angle element 70 contains a first fastening element 74, which is designed to receive a fifth profile element 15. The second angle element leg 82 of the second angle element 80 contains a second fastening element 85, which is designed to receive a sixth profile element 16. The fifth profile element 15 has a profile element length 17. The sixth profile element 16 has a profile element length 18. The fifth profile element 15 thus adjoins the third angle element 70. The sixth profile element 16 thus adjoins the fourth angle element 80.

[0092] As in the first embodiment, the second profile element 12 comprises a first profile element 21 and a second profile element 22. The first profile element 21 is designed as a plate element with a rectangular surface. A third profile element 13 is also connected to the second angle element 50. According to Fig. 16 the third profile element 13 comprises a first profile sub-element 31 and a second profile sub-element 32. The first profile sub-element 31 is designed as a plate element with a rectangular surface.

[0093] The profile element length 5 of the first profile element 14 is adjustable. In other words, a fourth profile element 14 with any desired profile element length 5 can be attached to the third and fourth fastening elements 75, 84 of the corresponding third and fourth angle elements 70, 80. Thus, the profile element 14 can be used according to the desired overall length L, overall width B, or overall height H of the formwork system.

[0094] The profile element length 3 of the second profile element 12 and the profile element length 4 of the third profile element 13 are also adjustable. If the second profile element 12 comprises a first profile element 21 and a second profile element 22, in particular the profile element length 25 of the first profile element 21 can be adjusted. For example, the first profile element 21 can be cut to the desired profile element length 25. According to the present embodiment, the second profile element 22 is a prefabricated structural element. If the third profile element 13 comprises a first profile element 31 and a second profile element 32, in particular the profile element length 35 of the first profile element 31 can be adjusted. For example, the first profile element 31 can be cut to the desired profile element length 35.According to the present embodiment, the second profile element 32 is a prefabricated component. In particular, the second profile element 22 and the second profile element 32 can be constructed identically. Fig. 17 shows an embodiment of such a profile part element 22, 32. For example, at least one of the second profile part elements 22, 32 can be designed as a frame element.

[0095] The first angle element 40 contains at least one reinforcing element, in Fig. 16 A first reinforcing element 47 and a second reinforcing element 48 are shown as examples.

[0096] The second angle element 50 contains at least one reinforcing element, in Fig. 16 A first reinforcing element 57 and a second reinforcing element 58 are shown as examples.

[0097] The third angle element 70 contains at least one reinforcing element, in Fig. 16A first reinforcing element 77 and a second reinforcing element 78 are shown as examples.

[0098] The second angle element 80 contains at least one reinforcing element, in Fig. 16 A first reinforcing element 87 and a second reinforcing element 88 are shown as examples.

[0099] According to an embodiment not shown, the fifth profile element 15 and the sixth profile element 16 can be omitted. According to this embodiment, the third angle element 70 is arranged adjacent to the second profile element 22 of the second profile element 12. Accordingly, according to this embodiment, the fourth angle element 80 is arranged adjacent to the second profile element 32 of the third profile element 13.

[0100] Fig. 17shows a detail of a profile element 22 for a formwork system 90 according to a fourth embodiment. This profile element corresponds to the profile element of the first embodiment, therefore the same reference numerals are used. The profile element 22 has a profile element length 28 that extends from the first profile element edge 26 to the second profile element edge 27.

[0101] According to the present embodiment, a first fastening element 61 is attached to the first profile element edge 26 of the second profile element 22. The first fastening element 61 serves to couple the first profile element 21 to the second profile element 22.

[0102] In Fig. 17Also visible is the fastening element 62, which is arranged on the second profile part element edge 27. The fastening element 62 is pivotable with respect to the second profile part element edge 27. In particular, the fastening element 62 is pivotable through an angle of up to and including 90 degrees. In a first pivot position, the fastening element 62 is arranged parallel to the reinforcing element 29 (which is not shown in the drawing); in a second pivot position, the fastening element 62 is arranged substantially parallel to the surface spanned by the second profile part element 32. According to the present exemplary embodiment, the fastening element 62 contains a locking element 63, for example a pin element. The locking element 63 is arranged in an opening in the fastening element 62.The locking element 63 can be removed if the fastening element 62 is to be moved from the first pivot position to the second pivot position or vice versa. Once the desired pivot position is reached, the locking element 63 is reinserted into the opening.

[0103] In particular, the fastening element 62 can comprise a hinge half, with one hinge half being arranged on the fifth profile element 15 and the second hinge half being arranged on the profile part element 22. The first hinge half can be pivoted away if no profile element 15 is attached to it. The two hinge halves, in conjunction with the locking element 63, form a hinge.

[0104] Such hinges can be provided for attaching each of the first to sixth profile elements 11, 12, 13, 14, 15, 16.

[0105] The distance of the fastening element 62 from the outer surface 68 corresponds in the Fig. 17 The pivoting position of the thickness of the fifth profile element 15 is shown. This ensures that the outer surface 68 is flush with the outer surface of the fifth profile element 15. In particular, the fastening element 62 can be mounted in such a way that differences in thickness between a planking panel and the fifth profile element 15 can be compensated. For example, the planking panel can have a thickness of 15 mm and the fifth profile element 15 can have a thickness of 27 mm.

[0106] If the fifth profile element 15 is not used, the fastening element can be inserted into the Fig. 17 not shown swivel position, which can also be Fig. 8 for the fastening element 66 of the profile part element 32.

[0107] The formwork system 10, 20, 90, 100 for a building opening according to each of the embodiments thus contains at least one angle element 40, 50, 70, 80, 103, 153 and at least one profile element 11, 12, 13, 14, 15, 16, 110, 120. At least some of the profile elements 11, 12, 13, 14, 15, 16, 110, 120 have a profile element length 3, 4, 5, 115, 125, 135, 145, which is adjustable.

[0108] The formwork system for concrete walls and ceilings thus comprises at least one angle element or at least one profile element containing a cladding panel. The angle element or the profile element containing the cladding panel is supplemented with at least one patch piece, thus creating a flush formwork. The patch piece(s) are designed as profile elements; for example, formwork panels can be used.

[0109] Each of the profile elements and each of the planking panels according to each of the exemplary embodiments can be designed as a plastic profile. The profile element can be continuously manufactured using an extrusion process and subsequently cut to the desired length.

[0110] It will be obvious to a person skilled in the art that many further variations are possible in addition to the described embodiments without departing from the inventive concept. The subject matter of the invention is therefore not limited by the foregoing description and is determined by the scope of protection defined by the claims. The broadest possible reading of the claims is decisive for the interpretation of the claims or the description. In particular, the terms "contain" or "comprise" should be interpreted to refer to elements, components, or steps in a non-exclusive sense, thereby indicating that the elements, components, or steps may be present or used, or that they may be combined with other elements, components, or steps not explicitly mentioned.Where the claims refer to an element or component from a group which may consist of A, B, C to N elements or components, that language should be interpreted to require only a single element of that group, and not a combination of A and N, B and N, or any other combination of two or more elements or components of that group.

Claims

1. Formwork system (10, 20, 90) for a building opening, comprising a first angle element (40), a second angle element (50) and at least one first profile element (11) extending between the first angle element (40) and the second angle element (50), wherein each of the first and second angle elements (40, 50) comprises a first angle element leg (41, 51) and a second angle element leg (42, 52), wherein the second angle element leg (42) of the first angle element (40) has an angle element outer surface (49), wherein the first angle element leg (51) of the second angle element (50) has an angle element outer surface (56), wherein the first profile element (11) has a first profile element edge (1) and a second profile element edge (2), wherein the first profile element (11) has a profile element length (5), wherein the profile element length (5) differs from the first profile element edge (1) to the second profile element edge (2),wherein each of the first and second angle elements (40, 50) contains a fastening element (45, 54) which is designed for fastening the first profile element (11) to the first and second angle elements (40, 50) in such a way that the surface (6) of the first profile element (11) forms a flat surface with the angle element outer surface (49) of the first angle element (50) and the angle element outer surface (56) of the second angle element (50), wherein the first angle element leg (41) of the first angle element (40) contains a first fastening element (44) which is designed to receive a second profile element (12), wherein the second angle element leg (52) of the second angle element (50) contains a second fastening element (55) which is designed to receive a third profile element (13), wherein the second profile element (12) has a profile element length (3) and the third profile element (13) has a profile element length (4), ,characterized in that the profile element length (5) of the first profile element (11), as well as at least one of the profile element lengths (3, 4) of at least one of the second profile element (12) and the third profile element (13) are adjustable, wherein at least one of the first, second or third profile elements (11, 12, 13) is designed as a dimensionally stable component.

2. Formwork system according to claim 1, wherein the first profile element (11) is designed as a plate element with a rectangular surface.

3. Formwork system according to one of claims 1 or 2, wherein the second profile element (12) and the third profile element (13) each contain a first profile part element (21, 31) and a second profile part element (22, 32).

4. Formwork system according to one of the preceding claims, wherein at least one of the first profile part elements (21, 31) is designed as a plate element with a rectangular surface.

5. Formwork system according to one of the preceding claims, wherein at least one of the second profile part elements (22, 32) comprises a frame element.

6. Formwork system according to one of claims 2 to 5, wherein a third angle element (70) is connected to the second profile element (12) and a fourth angle element (80) is connected to the third profile element (13), wherein a fourth profile element (14) is arranged between the third and the fourth angle element (70, 80).

7. Formwork system (100) for a building opening, comprising a first angle element (103), a second angle element (153) and at least one first profile element (110) extending between the first angle element (103) and the second angle element (153), wherein each of the first and second angle elements (103, 153) comprises a first angle element leg (101, 151) and a second angle element leg (102, 152), wherein the first angle element leg (101) of the first angle element (103) has an angle element outer surface (106), wherein the first angle element leg (151) of the second angle element (153) has an angle element outer surface (156), wherein the first profile element (110) comprises a first profile part element (111) and a second profile part element (121), wherein the first profile part element (111) and the second profile part element (121) form a common corner, wherein each of the first and second profile part elements (111,121) has a rectangular surface, wherein the first profile element (111) has a first profile element edge (113) and a second profile element edge (114), wherein the first profile element (111) has a first profile element length (115), wherein the first profile element length (115) extends from the first profile element edge (113) to the second profile element edge (114) of the first profile element (111), wherein the second profile element (121) has a first profile element edge (123) and a second profile element edge (124), wherein the second profile element (121) has a second profile element length (125), wherein the first profile element length (125) extends from the first profile element edge (123) to the second profile element edge (124) of the second profile element (121), wherein each of the first and second angle elements (103, 153) each has a fastening element (105, 154),which is designed for fastening the first profile element (110) to the first and second angle element (103, 153) in such a way that the surface (116) of the first profile element (111) forms a flat surface with the angle element outer surface (106) of the first angle element (103), and the surface (126) of the second profile element (121) forms a flat surface with the angle element outer surface (156) of the second angle element, , characterized in that at least one of the profile part element lengths (115, 125) is adjustable, wherein at least one of the first, second or third profile elements (11, 12, 13) is designed as a dimensionally stable component.

8. Formwork system according to claim 7, wherein the second angle element legs (102, 152) of the first angle element (103) and the second angle element (153) are connected to a second profile element (120) such that a common closed outer surface is formed by the first and second angle elements (103, 153) and the first and second profile elements (110, 120).

9. Formwork system according to claim 8, wherein the outer surface is square.

10. Formwork system according to one of claims 1 to 9, wherein at least one of the angle element outer surfaces contains a planking plate (9).

Images