Frame construction as part of a panel element for a sectional door leaf

Abstract

The invention relates to a panel element with a frame for a sectional door leaf, which consists of several panel elements that are hinged to one another, wherein the sectional door leaf is guided in lateral guides so as to be repositionable, wherein the frame consists of an upper horizontal aluminum profile element (23) and a lower horizontal aluminum profile element (24) and vertical aluminum profile elements (27, 37), wherein the aluminum profile elements (23, 24, 27, 37) have insulating webs (22) on their inner sides, wherein the insulating webs (22) are connected to the outer and inner aluminum profile elements (23, 24, 27, 37) in a force-fit and form-fit manner, so that in cross-section an outer, self-contained cavity and an inner cavity are formed, which are separated by an intermediate web (25, 56, 41), wherein the frame is filled with a replaceable, plate-shaped element as a disc (45).wherein the disc (45) is held by retaining strips (1), wherein the insulating webs (22) are force-fit and form-fit between the outer legs (28, 30, 42, 46) of the aluminum profile elements (23, 24, 27, 37) and the inner intermediate web (25, 56) and close off the outer cavity, wherein the inner cavity is connected from the intermediate web (25, 56, 41) to an inner leg (29, 57, 40) of the aluminum profile element (23, 24, 27, 37) directly or indirectly to the intermediate web (25, 56, 41) above the frame formation, wherein a connecting section (61) exists below the horizontal aluminum profile elements (23, 34) which is formed between the inner leg (29, 57) and the intermediate web (25, 56), wherein via The invention consists of screw connections between the inner cavity of the horizontal aluminum profile elements (23, 24) and the vertical aluminum profile elements (27, 37). The invention is characterized by the fact thatthat the connecting section (61) has a cross-sectional reinforcement compared to the horizontal aluminium profile elements (23, 24) and the vertical aluminium profile elements (27, 37).

Description

[0001] The invention relates to a frame assembly as part of a panel element for a sectional door leaf, which consists of several panel elements that are hinged together. The sectional door leaf is guided in lateral guides for movement. The frame assembly consists of horizontal and vertical aluminum profile elements that are interconnected. The aluminum profile elements are provided with insulating bars that provide thermal separation between the outside and inside of a building.

[0002] DE 10 2012 010 028 A1 relates to a frame arrangement for producing a frame surrounding a filling for a building element, such as a sectional door panel, a door or the like, having an outer profile forming an outer side of the frame and an inner profile forming an inner side of the frame, wherein the profiles are preferably spaced apart from one another in a direction extending perpendicular to the outer side or inner side and are connected to one another via a connecting device made at least partially of a thermally insulating material with at least one boundary surface facing the filling, wherein a coupling device is arranged on the boundary surface of the connecting device facing the filling, said coupling device serving to produce a positive connection with a holding device designed to hold the filling.

[0003] DE 20 2019 105 111 U1 describes a sectional door with a lifting leaf formed by plate segments arranged one above the other and connected to each other by hinges, with the hinge axes being perpendicular to the direction of movement of the leaf. At least one of the leaf segments is a rectangular frame with panel filling consisting of hollow beams made of profiles. The upper beam of the frame has a convex edge at the top, the two beams are compatible with each other, and each of these beams consists of two parallel and spaced-apart closed profiles connected by heat-insulating cross bridges.

[0004] A sectional door with a liftable door leaf is known from DE 20 2018 103 416 U1. The door leaf consists of plate sections arranged one above the other and connected to one another by hinges, wherein the hinge axes are perpendicular to the direction of movement of the door leaf, which is determined by the lateral rail guides, and wherein at least one of the door leaf sections has the shape of a square frame with plate filling, which consists of hollow beams formed by profiles, wherein the upper beam of the frame has a convex edge at the top and the lower beam of the frame has a concave edge at the bottom and the convex and concave contours of the edges of both beams match each other and each of these beams consists of two closed, parallel and spaced-apart profiles that are connected to one another by transverse thermal insulation bridges, wherein the cavity,which is delimited by the side walls of the profiles and the bridges connecting them, forming an intermediate chamber in each of these beams, and wherein the lower beam of the frame consists of profiles having at least one chamber, and the upper beam consists of single-chamber profiles, each of the profiles of the lower beam being divided into two superimposed chambers by a transverse partition.

[0005] WO 2021 / 209536 A1 describes a sectional door system comprising a sectional door leaf with multiple horizontal sections that are movable between a vertical closed position and a horizontal, open, or overhead position within a guide rail system. The sectional door leaf has an inner and an outer door surface.

[0006] The object of the invention is to create a frame structure as part of a panel element for sectional doors that ensures compliance with legal requirements for thermal insulation. Such a frame structure should be easy to manufacture while simultaneously providing sufficient longitudinal shear strength. It is important to ensure that such a frame structure is easy to install.

[0007] The object of the invention is solved by the features of claim 1. The subsequent subclaims represent a further embodiment of the inventive concept.

[0008] Aluminum profile elements are used which have a cross-section with an outer hollow section and an inner hollow section which are separated from each other. The outer hollow section serves to ensure thermal insulation. This hollow section is formed by an outer leg of the aluminum profile element through insulating webs on the top and bottom, which are connected to an inner intermediate web running in the direction of the aluminum profile element. This creates an outer hollow section which ensures the necessary thermal bridge, i.e. separation between the inside and outside of a building. The second, inner hollow section is directed towards the interior of the building and is formed by the intermediate web and the aluminum profile element sections connected to it. The inner leg of the aluminum profile element can be connected directly or indirectly to the insulating intermediate webs.This design of the aluminum profile elements applies to both horizontally and vertically used profile versions.

[0009] Because the frame is intended as part of a panel element for sectional door leaves, it must be ensured that the frame is stable at the top and bottom to ensure the same sealing and interacting function with a similarly designed conventional panel element arranged above or below. For this purpose, such frame designs have a convex shape on their top side and a concave shape on their bottom side. This type of construction ensures that a frame design interacts smoothly with panel elements arranged above or below. This type of design also allows the same fittings to be used between a frame design and a closed panel element, enabling a hinged movement between them.

[0010] The structural design of the aluminum profile elements into an inner and an outer hollow section in the cross-section results in a very effective division into an outer hollow section that serves exclusively for thermal insulation and an inner hollow section that also contributes to thermal insulation but is also used to connect corner versions of the aluminum profile elements in a butt joint design, i.e. there are no miter cuts.

[0011] The outer hollow section has an outer leg that has no further reinforcement elements, chambers, or projections formed on the inside. The intermediate web does not necessarily have a straight line between the inner and outer hollow sections, but can also take on other shapes. The outer hollow section is closed off on the top and bottom by the insulating webs. To connect the outer leg and the intermediate web to the insulating webs, the latter have fastening sections at their ends. These allow the insulating webs to be permanently fastened in a variety of shapes to aluminum profile elements during a single manufacturing process. For this purpose, the insulating webs preferably have trapezoidal clamping sections at their ends, which are permanently pressed into the sections of the aluminum profile elements during the manufacturing process.To achieve high strength and rigidity in the insulating bars used, polymers are used as a material. Polymers are ideally suited for creating such insulating bars. Polymers are characterized by their toughness and high strength and rigidity, which allows them to be used in a wide temperature range from approximately -30°C to over +100°C. This is particularly important for sectional doors with a frame design, as very high temperatures can occur when the outer legs are exposed to sunlight, and very low temperatures in winter. The family of linear polymers with amide compounds is particularly suitable for this purpose.

[0012] To achieve even greater dimensional stability and resilience of the insulating bars, the linear polymers can be enhanced with additives. Elongated glass fibers in the form of glass-fiber-reinforced polyamides have proven particularly effective in the design and construction of insulating bars. The efficient production of bar stock for the insulating bars from polyamide is cost-effective. The complexity of the geometry of the insulating bars, both with and without fiber-reinforced polyamides, results in enormous rigidity and, at the same time, high elasticity. Water absorption by the insulating bars is fundamentally unavoidable, but can be described as minimal and in no way impairs the dimensional stability of the frame design of the aluminum profile elements.

[0013] The inner hollow section of the aluminum profile elements can in principle also contribute to the thermal insulation of the profile design as a whole. However, this inner hollow section has the particular task of facilitating the connection between vertical and horizontal profile sections to form the frame. The inner hollow section has an essentially straight inner leg on the inside and the associated connecting sections, which are connected, for example, directly or indirectly to the intermediate web or can accommodate retaining strips for holding plate-shaped elements. Furthermore, connecting screws can be inserted into a profile to be connected here as a butt connection. For this purpose, holes are provided through which the connection between two aluminum profile elements arranged at an angle of 90° to each other can be made using reinforced connecting bearings.This enables a simple, permanent and cost-effective connection of two profile sections.

[0014] A receiving space for the retaining strips is formed across the connecting section between the inner leg and the intermediate web. For example, such a retaining strip can be made of plastic or light metal for weight reasons. Such a retaining strip has a hollow space enclosed on all sides by walls, which makes the retaining strip as a whole torsionally rigid. For assembly and disassembly in the event of damage to the fillings of the viewing fields, it is necessary that the plate-shaped elements can be replaced quickly and easily. When designing the retaining strip in plastic, an impact-resistant plastic with a very high Shore hardness is preferably used. The enclosed hollow space has a base on the underside from which a protruding, spread-out hook extends. The retaining strip engages with this hook into a

[0015] The recess in the aluminum profile element is part of the inner hollow section. With a lower support side, which is part of the base and located in front of the hook, the retaining strip rests on a part of the aluminum profile element. The design of the hook is characterized by two distinct sections. A high prestress is to be created on one outer side of the retaining strip relative to the plate-shaped element. It is necessary that only materials that are not subject to embrittlement be used for the retaining strip.

[0016] It is also possible for the side with which the retaining strip is positioned against the plate-shaped element to be provided with sealing lips. Such a construction can be produced using a two-component technology. In this case, different hardnesses of a retaining strip are produced in a single injection molding process, but with strictly separate component areas. By using such additional sealing lips, an additional very good seal can be achieved between the retaining strip and the plate-shaped element. By combining thermoplastic plus elastomer, i.e., plastic and rubber, complex assembly work on the frame after inserting the plate-shaped element to ensure sufficient tightness can be avoided.

[0017] By dividing the aluminum profile element's cross-section into an outer and an inner hollow section, the greatest possible thermal insulation is achieved, because the outer hollow section is used solely for thermal insulation. In EP 2 666 948 A1, the opening of the insulating bars is achieved by connecting vertical and horizontal hollow sections, which can no longer guarantee effective thermal insulation.

[0018] The invention is explained in more detail below using various embodiments. Figure 1 shows a perspective detail of two superimposed, non-connected frame sections of a sectional door leaf; Figure 2 as Figure 1, but with a representation of the aluminum profile elements and retaining strips; Figure 3 a separate representation of a horizontal profile design; Figure 4 the use of a retaining strip in a cutout representation within an aluminum profile cutout; Figure 5 a further embodiment of a retaining strip; Figure 6 an upper end of a sectional door leaf with a sectional element; Figure 7 a preferred embodiment of a vertical aluminum profile element; Figure 8 a further preferred embodiment of a vertical aluminum profile element in a vertical design; Figure 9 a cutout representation of a butt joint of a vertical aluminum profile element with a horizontal aluminum profile element; Figure 10 the lower end of a sectional door leaf.

[0019] A sectional door leaf in a partial section is shown in the Figure 1in a perspective view with a horizontal profile 24 and a horizontal profile 23 arranged underneath. This schematic representation shows the interaction of two panel elements in frame configurations for a sectional door leaf. These frame configurations can consist of one or more subdivided fields filled with replaceable panes 45. Such panes 45 can be used as plate-shaped elements in a transparent or opaque design. Such panes 45 are held in position within the frame configuration by replaceable retaining strips 1 that are attached to the inside of the building.Since these frame designs are functionally equivalent to the known panel elements in the closed state of the sectional door leaf, it is necessary that such frame designs are designed in the same way to overlap both the upper and lower horizontal sections in the closed position of the sectional door leaf. For this purpose, for example, the horizontal profile 23 has a convex design on the top side and the corresponding horizontal profile 24 shown above has a concave area, whereby the two aluminum profile elements 23 and 24 virtually interlock in this position. To seal the two horizontal profiles 23 and 24 from one another, for example, a sealing element 33 is provided in the profile 24; other sealing options are also possible. By means of this sealing element 33, in the closed position of the sectional door leaf, ieWhen the two panel elements 23, 24 are superimposed, a sealing function against moisture and wind loads, etc. to the interior of the building is performed.

[0020] The panel elements usually consist of outer and inner sheet metal elements spaced apart by insulating foam.

[0021] The horizontal profile 23 is divided into two separate cavities in its cross-section. This creates an outer cavity and an inner cavity. The outer cavity is delimited towards the outside 26 of the building by an outer leg 28 as part of the frame structure. Between the outer leg 28 and an intermediate web 25, insulating webs 22 are arranged on the top and bottom, creating a closed outer cavity. Within this enclosed, outer cavity, there are no chambers or other self-contained additional cavities. The insulating webs 22 are made of polyamide and each have clamping sections 53 at their lateral ends, which are force- and form-fittingly connected to the aluminum outer leg 28 and the aluminum intermediate web 25 in a manufacturing process.The inner cavity, which faces the interior of the building, has an inner leg 29 as part of the frame construction, which has a profile offset 2 on the upper side, which merges into the intermediate web 25 in an upper end region. The lower end of the inner cavity between the intermediate web 25 and the inner profile is formed by a connecting section 61 with a receiving section 16 for a retaining strip 1. This lower connecting section 61 has a cross-sectional thickening compared to the other aluminum profile constructions with an additional recess in the form of a connecting bearing for connecting the horizontal profiles 23 to a vertical profile 27 in a butt joint design. In the area in which bores 31 are provided on the underside for butt jointing with the vertical profile 27, the inner cavity has molded-on material thickenings which are used to connect the vertical profiles 27 via connecting elements 48.This means that the inner cavity becomes an assembly section with insulating properties and the outer cavity becomes an exclusively insulating section in the frame design.

[0022] To form the upper convex end shape of the horizontal profile 23, a profile offset can be present on the outer leg 28 on the upper side, before the insulating web 22 begins. Thus, the upper end of the horizontal profile 23 is provided with a protruding, convex end.

[0023] In the closed position of the sectional door leaf, an upper panel element interacts with the horizontal profile 23. This upper panel element is provided in a frame configuration and contains the sealing element 33 for the sealing function against the insulating web 22, which sealing element is embedded in a sealing receptacle 36 of the horizontal profile 24. To ensure the sealing function of the two panel elements in the frame configuration with respect to one another, the horizontal profile 24 is provided with projections on each side in continuation of an inner leg 57 and the outer leg 30, which project onto the profile attachments with a certain amount of play.

[0024] The horizontal profile 24, like the horizontal profile 23, is also provided with an outer and inner cavity in cross-section. The outer cavity is formed by the outer leg 30 as part of a frame structure in conjunction with the intermediate web 56 spaced apart by the insulating webs 22. The inner cavity has the bore 31, through which the connecting bearing 32, also formed here, is accessible in order to connect the horizontal profile 24 to a vertical profile 27 via a butt joint formed at an angle of 90°. The horizontal profile 24 also has a receiving section 16 for the retaining strip 10.To create the butt joint between the horizontal profile 24 and the vertical profile 27, the profile thickening in the connecting section 61 is also provided as reinforcement, aligned with the bore 31. This thickening is used for the connecting bearing 32 to prevent the horizontal profile 24 from warping when the connection is made between a vertical profile 27 and the horizontal profile 24. At the same time, the connecting section 61 reinforces the horizontal profiles 23, 24 without increasing the weight of the aluminum profile elements.

[0025] The inner cavity of the horizontal profile 24 is designed differently than that of the horizontal profile 23. This is because the panel elements of the sectional door leaf will achieve a sealing function between two adjacent panel elements when the door is in the closed position. For this purpose, an additional chamber is provided at the bottom of the inner cavity, which ends in a rounded portion 39. The rounded portion 39 presses the existing sealing element 33, which is attached to the horizontal profile 24, against the convex profile attachment 2 of the underlying panel element with the horizontal profile 23. Towards the outside, the projecting end leg 58 of the outer leg of the horizontal profile 24 forms an offset opposite the profile offset 2. This creates an essentially concave shape on the underside of the horizontal profile 24, into which the convex end region of the horizontal profile 23 extends.

[0026] The butt joint is in the Figure 1 Not shown. For the implementation, a substantially flat surface is created between the vertical profile 27 and the horizontal profile 24, for example, on the outer side 26 of the sectional door leaf. For this purpose, the horizontal profile 24, for example, has a projecting outer leg 30, which at its end extends into a shoulder 34 incorporated into the vertical profile 27.

[0027] In the Figure 2 Only the horizontal profiles 23 and 24 were shown with inserted retaining strips 1. In both profiles 23 and 24, the retaining strip 1 is inserted via an angled portion 12. From this illustration, it is clear that for the horizontal profile 24, above the bore 31, a smaller bore 38 is present in the reinforced connecting section 61. Thus, the connecting bearing 32 can be provided with a continuous guide 59, according to the Figures 9 and 10The lateral guide 59 not only makes insertion of the connecting element 48 much easier, but also ensures that the profiles 23 and 24 do not become distorted.

[0028] For the installation of the panes 45 or the like to the building exterior 26, sealing receptacles 35 are provided in the projecting leg versions of the horizontal profiles 23 and 24 and for the termination to the vertical profiles.

[0029] The horizontal profile 24 according to Figure 3, in a cross-sectional view, shows the connecting bearing 32 with the reinforced material design in the connecting section 61 with the frame support 15. This design makes it possible for the butt connection between the vertical profile 27 and the horizontal profiles 23 and 24 to provide a permanent, secure, force- and form-fitting connection without the need for additional components. The cross-sectional reinforcement in the connecting section 61 with the guide 59 represents a simple connection, and no additional components need to be provided for stabilization when implementing a frame corner connection, which would also lead to an increase in weight.

[0030] By showing the detail of the Figure 3 is in the Figure 4illustrates how the retaining strip 1 can be inserted within the open receiving space 16 with the protruding hook 12 and positioned against the plate-shaped element 45. Figure 4a first preferred embodiment of a retaining strip 1. The retaining strip 1 has a cavity 6 that is closed on all sides and is enclosed on the outside of the door leaf by an outer wall 4 and on the inside by a contact side 3, as well as an upper intermediate leg 5 and a lower base 7. When installed, the contact side 3 comes into contact with the pane 45. The contact side 3 must exert the necessary pressure against the pane 45 or another plate-shaped element so that no water can penetrate from the outside between the contact side 3 and the pane 45. This can be achieved in particular by manufacturing the retaining strip 1 from an impact-resistant plastic with a high Shore hardness, which nevertheless ensures a high contact pressure and thus strong adhesion forces on the pane 45. However, it is also possible to manufacture the retaining strip 1 from a different material, such as aluminum.

[0031] The base 7 of the retaining strip 1 consists of a substantially straight support side 9, the adjoining hook 12, and an adjoining side with a bevel 8 that ends in an outer support point 11. The support side 9 and the support point 11 are at the same height. The bevel 8, starting from the support point 11, essentially lies in a range of 1° to 10°. The hook 12 is divided into a first section 10 and a second section 60. The first section 10 is angled between 91° and 110° relative to the substantially straight support side 9. However, following this first section 10, the second section 12 is again beveled towards the support side 6, whereby this angle, starting from the first section 10, is approximately between 40° and 50°. A projecting support point 13 is provided at the end of the second section 12.Section 10 and the angled portion 60 of the hook 12 extend into the receiving section 16. The support side 9 rests on the frame support 15 of the profiles 23, 24, 27 of the frame structure. At the same time, the support point 11 has further contact with the frame support 15. While the support point 11 is in contact with the leg 20, the section 10 of the hook 12 is in laterally contact with a counter-bearing 19 of the frame structure in the receiving section 16. Due to the inclined position of the angled portion 60 of the hook 12, the end of the hook 12 comes into contact with an inner wall 17 on a support wall 18 within the receiving section 16 via the support point 13. This type of construction ensures that the mounting strip 1 can be given a secure and permanent hold with the contact areas.The frame design has a frame profile outer side 14 on the outside, which, after insertion of the mounting strip 1, is essentially aligned with the outer wall 4 of the holding strip 1.

[0032] In the Figure 5 A further preferred embodiment of the mounting strip 1 is shown. In this embodiment, additional sealing lips 21 are formed on the contact side 3. These sealing lips 21 have a lower Shore hardness than the retaining strip itself. This means that the two components of the retaining strip 1 can be manufactured in a single operation using a 2-component injection molding process, so that the contact side 3 can be made of a thermoplastic and the sealing lips of an elastomer.

[0033] In another detail view after Figure 9The design of the butt joint between the vertical profile 27 and one of the horizontal profiles 23 or 24 is discussed again. This illustration clearly shows that in the area where the connecting element 48 enters the connecting section 61, the profile is substantially enlarged compared to the other walls of the aluminum profile elements. This thickening of the profile element enables the connecting bearing 32 to prevent any of the aluminum profile elements from becoming distorted when the connecting element 48 is tightened.

[0034] An exemplary preferred design of a vertical profile 27 is given by Figure 7again. In this embodiment, an outer leg 40 is shown, which has a projecting area at one end for a seal receptacle 35. Here, too, an inner and an outer cavity are present. The outer cavity is separated from the inner cavity by an intermediate web 41. The screw channels only have the functional task of providing a butt joint. The outer leg 40 is again spaced from the intermediate web 41 by insulating webs 22. Attention is again drawn to the force-locking and form-locking connection of the clamping sections 53 of the insulating webs 22 with the aluminum profile elements. The insulating webs 22 here have a substantially straight distance 52, to which offsets 54 are connected at each end. The offsets 54 then each merge into the clamping sections 53. Towards the inside of the building, the profile design according to Figure 7an inner cavity is present which is formed on one side with the receiving section 16 for the retaining strip 1.

[0035] In the Figure 8 A further, modified, preferred embodiment of a vertical profile 37 is shown. The vertical profile 37 is essentially formed by an outer leg 46 and insulating webs 22 connected to the outer leg 46, which are then connected at the ends to an intermediate web 56. Such a vertical profile 37 is used when the frame construction consists of several, i.e., self-contained fields for panes 45. This is also evident in the fact that the inner cavity is closed off on the outside by an inner leg 47. The inner leg 47 has, on each of its two vertical sections, the receiving sections 16 for the retaining strips 1 and thus for the use of panes 45. The outer leg 46 has projecting ends on both sides, each with a sealing receptacle 35.

[0036] The Figure 6 shows the upper end of a sectional door leaf. The design is shown in Figure 6 used in such a way that a seal receptacle 36 can be designed on top with a seal base 44 on a projecting upper end seal 43. Here, too, an intermediate wall 55 separates the outer and inner cavities from each other.

[0037] The lower section of a sectional door leaf, which has been provided with a frame, for example, is shown in the Figure 10, whereby a floor finishing profile 49 is used here. This floor finishing profile 49 is significantly higher than the other horizontally used profiles 23 and 24. As a result, the outer cavity is divided by several insulating webs 22, thus achieving not only greater strength for the floor finishing profile 49 but also good thermal insulation. The floor seal 51 with its sealing base 42 is inserted within a seal receptacle 50, forming the lower end to a building-side support surface. Reference symbol

[0038] 1Retaining strip 2Profile offset 3Contact side 4Outer wall 5Intermediate leg 6Cavity 7Base 8Bevel 9Support side 10Section 11Support point 12Hook 13Contact point 14Frame profile outer side 15Frame support 16Receiving section 17Inner wall 18Contact wall 19Counter support 20Leg 21Sealing lips 22Insulating web 23Horizontal profile 24Horizontal profile 25Intermediate web 26Building exterior 27Vertical profile 28Outer leg 29Inner leg 30Outer leg 31Bore hole 32Connecting bearing 33Sealing element 34Step 35Seal receptacle 36Seal receptacle 37Vertical profile 38Bore hole 39Rounding 40Outer leg 41Intermediate web 42Sealing base 43End seal 44Sealing base 45Discs 46Outer leg 47Inner leg 48Connecting element 49Floor end profile 50Seal holder 51Floor seal 52Spacer 53Clamping section 54Offset 55Partition wall 56Intermediate web 57Inner leg 58End leg 59Guide 60Angled section 61Connecting section

Claims

1. Panel element with a frame construction for a sectional door leaf, which consists of several panel elements that are connected to one another by hinges, wherein the sectional door leaf is guided in lateral guides in a positionally adjustable manner, wherein the frame construction consists of an upper horizontal aluminum profile element (23) and a lower horizontal aluminum profile element (24) and vertical aluminum profile elements (27, 37), wherein the aluminum profile elements (23, 24, 27, 37) have insulating webs (22) on the inside, wherein the insulating webs (22) are connected to the outside and inside aluminum profile elements (23, 24, 27, 37) in a force-locking and form-locking manner, so that in cross-section an outer, self-contained cavity and an inner cavity are created, which are separated by an intermediate web (25, 56, 41), wherein the frame construction is provided with a replaceable, plate-shaped element as a disc (45) is completed,wherein the pane (45) is held by retaining strips (1), wherein the insulating webs (22) are fastened in a force-fitting and form-fitting manner between outer legs (28, 30, 42, 46) of the aluminum profile elements (23, 24, 27, 37) and the inner intermediate web (25, 56) and close off the outer cavity, wherein the inner cavity is connected from the intermediate web (25, 56, 41) to an inner leg (29, 57, 40) of the aluminum profile element (23, 24, 27, 37) on top of the frame formation directly or indirectly with the intermediate web (25, 56, 41), wherein underneath the horizontal aluminum profile elements (23, 34) there is a connecting section (61) which is formed between the inner leg (29, 57) and the intermediate web (25, 56) wherein screw connections exist via the inner cavity of the horizontal aluminium profile elements (23, 24) to the vertical aluminium profile elements (27, 37), , characterized in thatthe connecting section (61) has a cross-sectional reinforcement compared to the horizontal aluminum profile elements (23, 24) and the vertical aluminum profile elements (27, 37).

2. Panel element according to claim 1, characterized in that the connecting section (61) has a recess with a guide (59) in the form of a connecting bearing (32) for connecting the horizontal aluminum profile elements (23, 24) to the vertical aluminum profile elements (27, 37) via connecting elements (48) in a butt connection.

3. Panel element according to claim 1, characterized in that the inner cavity has bores (31) for butt-connecting the horizontal aluminum profile elements (23, 24) to the vertical aluminum profile elements (27, 37).

4. Panel element according to claim 1, characterized in that in the connecting section (61) corresponding bores (38) are contained with the bores (31).

5. Panel element according to claim 1, characterized in thatthe underside of the lower horizontal aluminum profile element (24) has, for corresponding use with the upper horizontal aluminum profile element (23), a sealing receptacle (36) in which a sealing element (33) is arranged, wherein the lower horizontal aluminum profile element (24) has an inner and outer cavity, wherein the cavities are separated by an internally extending intermediate web (56).

6. Panel element according to claim 1, characterized in thatthe outer cavity of the lower horizontal aluminum profile element (24) is closed off on the top and bottom by insulating webs (22) which are non-positively and positively connected on the one hand to the intermediate web (56) and on the other hand to an outer leg (30) of the lower horizontal aluminum profile element (24), and in that an outer leg (30) has a projecting leg with a seal receptacle (35) following the clamping of the insulating webs (22) and a projecting end leg (58) following the lower clamping of the further insulating web (22).

7. Panel element according to claim 1, characterized in thatthe retaining strip (1) consists of an impact-resistant plastic with a high Shore hardness or light metal, with a cavity (6) enclosed on all sides, which has an underside base (7) which has a projecting hook (12) following an approximately straight support side (9), and that following the hook (12) there is formed an ascending bevel (8) directed from an end support point (11) to the hook (12).

8. Panel element according to claim 7, characterized in that the support point (11) and the support side (9) lie dimensionally on one plane, wherein the bevel (8) rising from the support point (11) to the hook (12) is formed at an angle of approximately 1° to 10°.

9. Panel element according to claim 7, characterized in thatthe hook (12) is defined by a first section (10) with an adjoining second section (60), the first section (10) of the hook (12) being set at an angle of between 91° and 110° with respect to the approximately straight support side (9), and the second section (60) adjoining the first section (10) of the hook (12) being formed with an angular position of more than 90° in the direction of the support side (9), the second section (12) being closed off at the end by a projecting support point (13).

10. Panel element according to one or more of the preceding claims, characterized in that the insulating webs (22) have a high cross-sectional shape stability and poor thermal conductivity and consist of a polyamide with at least one additive, wherein the ends of the insulating webs (22) are provided with clamping sections which are connected to the aluminum profile elements (23, 24, 27, 37) in a force-locking and form-locking manner.

11. Panel element according to claim 10, characterized in that the aggregate consists of elongated glass fibers.

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