Louvered roof with rotatable louvers and defined center of gravity

Description

[0001] The invention relates to a louvered roof with a frame formed from several supports, wherein several louvers are arranged parallel to each other on the frame between two lateral supports and are rotatably mounted directly or indirectly on the lateral supports, wherein the louvers cover the area spanned by the frame in a closed position and are rotatable from the closed position to an open position about an axis of rotation, wherein the louvers are kinematically coupled to each other in such a way that the louvers rotate synchronously.

[0002] Such louvered roofs are known from EP 4 141 191 A1 and DE 10 2019 001 620 A1.

[0003] Other types of louvered roofs are also known. In these designs, the louver mountings must always have a small amount of play to allow the louvers to rotate. A disadvantage of this design is that, due to this play, when the center of gravity of the louvers shifts past their pivot point, the louvers fall into a more open position with a certain amount of noise. Conversely, when rotating back towards the closed position, the louvers also fall back, again with a certain amount of noise. This behavior is particularly bothersome in louvered roofs with a typical size, where the frame supports are several meters long, and the resulting large number of louvers of a corresponding length is considerable.

[0004] The object of the invention is to overcome the disadvantages of the prior art and to further develop a louvered roof in such a way that the louvers always occupy a defined position within their suspensions.

[0005] This problem is solved according to the invention by a louvered roof according to claim 1. Advantageous embodiments of the invention are specified in the dependent claims.

[0006] A particularly advantageous feature of the louvered roof with a frame formed from several supports, wherein several louvers are arranged parallel to each other on the frame between two lateral supports and are rotatably mounted directly or indirectly on the lateral supports, wherein the louvers cover the area spanned by the frame in a closed position and are rotatable from the closed position to an open position about an axis of rotation, wherein the louvers are kinematically coupled to each other in such a way that a synchronous rotation of the louvers takes place, is that the center of gravity in the open position of the louvers is offset by a distance from the respective axis of rotation, so that a torque in the direction towards the closed position of the louvers results from the center of gravity of the louvers being offset from the axis of rotation.

[0007] The defined center of gravity of the slats ensures that they always induce a torque in the direction of the closed position. This keeps the slats in a defined position within their mountings, which have a small amount of play to allow for rotation. This defined position prevents unwanted noise from occurring when the slats are twisted, as they always remain pressed against their mountings in the direction of the closed position.

[0008] The rotation of the louvers towards the open position can be limited by ensuring that the maximum opening angle in the open position is less than or equal to 90° from the closed position of the louvers, in particular less than or equal to 80°, and in particular less than or equal to 75°.

[0009] Preferably, the lamellae are kinematically coupled to each other by means of at least one coupling element, wherein a roller and / or a slider of each lamella is guided in or on the coupling element, wherein the roller and / or the slider is coupled to the lamella via a lever arm, such that a displacement of the coupling element causes the rotation of the lamella.

[0010] Such a coupling element, in or on which a roller and / or a slider of each lamella is guided, ensures a synchronous rotation of all lamellae kinematically coupled by means of the coupling element.

[0011] Particularly preferably, the lamellae are kinematically coupled to each other by means of at least one coupling element, wherein the coupling element is formed by a profile, in particular a C-shaped profile, in or on which a roller and / or a slider of each lamella is guided.

[0012] Such a profile, particularly a C-shaped one, ensures good and reliable guidance of the rollers or gliders of the slats. The defined center of gravity of the slats, offset by a certain distance from the axis of rotation, guarantees that the rollers or gliders remain in contact with the profile in a defined position, preventing them from lifting off the contact surface in or on the profile.

[0013] Preferably, the lamellae are kinematically coupled to each other by means of at least one coupling element, wherein the coupling element is spring-loaded in the direction of movement of the coupling element, which causes a rotation of the lamellae into the closed position.

[0014] By applying such a spring load to the coupling element in the direction of the closing position of the slats, an additional force is applied, forcing the slats into a defined position in or on the coupling element.

[0015] Preferably, the lamellae are kinematically coupled to each other by means of at least one coupling element, wherein at least one compression spring is arranged between a carrier and the coupling element and / or at least one lamella, wherein a fixed end of the compression spring acts on the carrier, while a free end of the compression spring acts on the coupling element and / or on the lamella and always exerts a compressive force in the closing direction of the lamellae on the coupling element and / or the lamella.

[0016] Alternatively or cumulatively, the lamellae are kinematically coupled to each other by means of at least one coupling element, wherein at least one tension spring is arranged between a carrier and the coupling element and / or at least one lamella, wherein a fixed end of the tension spring acts on the carrier, while a free end of the tension spring acts on the coupling element and / or on the lamella and always exerts a tensile force in the closing direction of the lamellae on the coupling element and / or the lamella.

[0017] By arranging one or more compression springs and / or tension springs, a spring force is applied to the coupling element in the direction of the closing position of the slats, forcing the slats into a defined position in or on the coupling element, and the necessary play in the suspension of the slats as well as between the coupling element and the rollers and / or sliders prevents unwanted movements and noise.

[0018] In a particularly preferred embodiment, at least a portion of the louvers are movable in the open position along guide rails between a closed position, in which the louvers are evenly distributed over the area spanned by the frame, and an open position, in which the louvers are pushed together into a bundle on one side of the area spanned by the frame, wherein the louvered roof has two separately controllable drives, wherein the first drive serves to rotate the louvers between the closed position and the open position, and wherein the second drive serves to move the louvers in the open position along the guide rails between the closed position and the open position.

[0019] In this case, the louvered roof has two separately controllable drives. The first drive rotates the louvers between the closed and open positions. In the closed position, the louvers lie within the plane defined by the louvered roof frame, forming a closed roof. From this closed position, the louvers can be rotated into the open position using the first drive. Each louver is mounted to rotate around a pivot axis. In the open position, the louvers are perpendicular or nearly perpendicular to the plane defined by the louvered roof frame. In this open position, the louvers can be moved from the closed to the open position along the guide rails using the second drive.The closed position refers to the arrangement in which the louvers are evenly distributed across the plane defined by the frame of the louvered roof, and it would be possible to rotate the louvers into the closed position. The open position refers to the arrangement in which the louvers are pushed together into a stack at one end of the guide rails, exposing part of the plane defined by the frame of the louvered roof. When the louvers are pushed together into such a stack, rotation around their respective axes is not possible. To prevent damage and incorrect operation, the control system for the two drives is designed so that rotation of the louvers using the first drive is only possible in the closed position, and movement of the louvers using the second drive is only possible when the louvers are rotated into the open position.

[0020] The terms closed position and open position thus refer to the relative position of the louvers as a result of the rotation of the louvers relative to the plane spanned by the frame of the louvered roof.

[0021] The terms closed position and open position refer to the distribution of the louvers across the plane spanned by the frame of the louvered roof. In the closed position, the louvers are evenly distributed across the plane spanned by the frame of the louvered roof, while in the open position, the louvers are pushed together against the direction of extension into a stack at one end of the guide rails.

[0022] A uniform distribution of the louvers over the plane spanned by the frame of the louvered roof refers to an equidistant arrangement of the rotation axes of the louvers, so that in the closed position the louvers can be rotated from the open position to the closed position to form a closed roof surface.

[0023] The direction of travel of the movable louvers towards the closed position, with the louvers evenly distributed across the plane spanned by the frame, is called the extension direction. Conversely, the opposite direction of travel is the direction of travel of the movable louvers towards the open position, with the louvers pushed together into a stack at one end of the louvered roof.

[0024] The second drive can be formed, in particular, by at least one traction element, such as a driven belt, which engages directly or indirectly with the last slat in the extension direction. In particular, it can be a toothed belt. Such a driven belt can be designed as a continuous loop, which is driven directly by a motor.

[0025] Preferably, the second drive is formed by at least one driven traction element, in particular a driven belt, in particular a driven toothed belt, which engages directly or indirectly on the last lamella in the extension direction, and wherein the lamellae are coupled by collapsible or flexible coupling elements, such that, when the last lamella in the extension direction moves in the retraction direction, the lamellae slide together to form a package with the coupling elements automatically collapsing, and wherein, when the last lamella in the extension direction moves in the extension direction, the lamellae are arranged evenly distributed over the area spanned by the frame due to the coupling elements.

[0026] The last slat in the extension direction is the one that, in the closed position, forms the end of the slat assembly. When pushed together to form a tightly packed unit in the open position, the slats are thus moved against the extension direction.

[0027] In this case, the last slat in the extension direction is moved by the driven belt either in the opposite direction or in the extension direction. The movable slats are coupled to each other by collapsible coupling elements, so that when the last slat in the extension direction moves in the retraction direction, the coupling elements automatically collapse, causing the slats to push together into a stack. When the last slat in the extension direction moves in the extension direction, the coupling elements ensure that the slats are evenly distributed across the area spanned by the frame. Thus, when the slats move against the extension direction, the last slat in the extension direction, to which the belt engages, pushes the remaining slats forward one after the other until they are pushed together into a stack at one end of the guide rails and the open position is reached.

[0028] In an extension-direction operation, the slats are gradually pulled into the closed position by means of the collapsible coupling elements. The combination of the drive belt, which engages the last slat in the extension direction, and the collapsible coupling elements provides a very simple drive mechanism for moving the slats.

[0029] Preferably, each coupling element between two adjacent lamellae is formed by two coupling arms, wherein a first end of a coupling arm is arranged to be freely rotatable on each of the two lamellae and the two free ends of the coupling arms are connected to each other to be freely rotatable by means of a joint, in particular that the first end of a coupling arm is arranged to be rotatable about the axis of rotation of the lamella.

[0030] Due to the rotatable linkage to each slat and the articulated connection, the two lever arms form a V-shaped coupling element that automatically folds together when the two slats are pushed together. Conversely, when the adjacent slats are pulled apart, this V-shape opens again, so that the rear slat (in the extension direction) is automatically pulled along by the slat in front of it. The coupling elements fold together due to the force of gravity acting on the two coupling arms, without requiring any further input.

[0031] Particularly preferably, each coupling element has an angular limitation of the opening angle of the joint connecting the two free ends, in particular that the opening angle of the joint is limited to less than 170°.

[0032] By limiting the opening angle of the joint in this way, it is ensured that when the coupling elements are pushed together, they always fold together automatically, and jamming or over-rotation of the joint is reliably prevented.

[0033] Preferably, a first drive for rotating the slats between the closed position and the open position is integrated into a slat, wherein, due to the kinematic coupling of the slats, in particular via a coupling element, a rotation of a single slat by means of the first drive causes a displacement of the coupling element and thus a synchronous rotation of all slats.

[0034] In particular, this first drive can be integrated into the first slat in the extension direction, with the axis of rotation of the first slat in the extension direction being fixed relative to the frame. "Fixed" here refers to the fact that the first slat in the extension direction is rotatably mounted, but cannot move relative to the frame of the louvered roof.

[0035] Accordingly, in this case the first slat in the direction of extension is fixed in position relative to the frame, while all other slats of the louvered roof are movable along the guide rails.

[0036] This first drive can be an electrically driven motor, in particular a tubular motor. Alternatively, this drive can be a gearbox or a clutch, which is mechanically driven and causes the slat to rotate about its axis of rotation relative to the frame. The slat accommodating the drive has a suitable cross-sectional profile that allows the integration of the first drive into this slat.

[0037] By integrating the first drive for rotating the slats into one of the slats, preferably the first slat in the extension direction, a particularly space-saving arrangement is created. The drive, in particular a tubular motor, is housed within a slat, especially the first slat in the extension direction.

[0038] Particularly preferred is a first drive for rotating the slats between the closed position and the open position formed by at least one tubular motor integrated into one of the slats, wherein the frame and / or a guide rail forms a bearing block for transmitting the torque, in particular the tubular motor can be integrated into the first slat in the extension direction, wherein its axis of rotation is fixed relative to the frame.

[0039] In this case, the first slat in the extension direction is rotatably mounted on the frame of the louvered roof, and this slat incorporates an integrated tubular motor for rotating the slats. This tubular motor, integrated into the first slat, is supported against the frame and / or the guide rail to transmit the torque and causes the slat to rotate about its axis of rotation relative to the frame. Due to the kinematic coupling of the slats to each other, this rotation of the first slat by the integrated tubular motor results in a synchronous rotation of all slats.

[0040] Preferably, each of the lamellae has at least one lever arm articulated to the axis of rotation of the lamella, which is guided at its free end in or on a profile, in particular a C-shaped profile, running parallel to the guide rail, and in particular that each lever arm has a roller and / or a slider at its free end guided in the profile, in particular a C-shaped profile.

[0041] This C-shaped profile ensures precise guidance of the free end of each lever arm and kinematically couples all lever arms of the slats, resulting in synchronous rotation of the slats. When the first slat in the extension direction is rotated by the drive, for example, by an integrated tubular motor, the action of the lever arm of this driven slat automatically shifts the C-shaped profile, in which all rollers and / or sliders located at the free ends of all lever arms are guided. This kinematic coupling of the slats via the C-shaped profile ensures synchronous rotation of all slats.At the same time, the arrangement of rollers and / or sliders at the free ends of the lever arms allows the slats twisted into the open position to move along the guide rails and along the C-shaped profile forming a coupling element.

[0042] Preferably, each of the movable slats is guided in the guide rails by means of rollers and / or sliders. The arrangement of rollers and / or sliders facilitates the movement of the slats along the guide rails and reduces friction.

[0043] Preferably, the guide rails are integrated into the frame supports. Particularly preferably, the traction element of the second drive for moving the slats is integrated into the frame supports. Integrating the guide rails and / or the traction element of the second drive for moving the slats into the frame supports creates an elegant solution in which the guide rails and / or the second drive are protected from damage and contamination by being integrated into the frame.

[0044] Preferably, a drive motor for actuating the traction element of the second drive for moving the slats into the frame supports or into the first slat in the extension direction is integrated. This drive motor for actuating the traction element of the second drive can, in particular, be a tubular motor.

[0045] Thus, the first slat in the extension direction, which is fixed to the frame, can accommodate both a first tubular motor for rotating the slats and a second tubular motor for driving the traction element to move the slats. For this purpose, the first slat in the extension direction has a corresponding profile cross-section to allow the two tubular motors to be installed at the two opposite ends of the slat.

[0046] Preferably, the louvers partially overlap in the closed position and each louver overlaps the adjacent louver, wherein an edge arranged on the louver edge that is at the top in the open position and projects downwards in the closed position engages in a corresponding groove arranged on the top of the adjacent louvers, in particular that the louvers have flexible sealing lips by means of which a rainwater-tight seal is created with the respective adjacent louver in the closed position of the louvers.

[0047] Preferably, the maximum rotation of the slats from the closed position to the open position is less than or equal to 90°, in particular less than 80°.

[0048] Preferably, the louvers are arranged at an angle towards one of the supports, and the frame has at least one gutter on the lower side of the louvers for collecting and draining rainwater that strikes the closed louvers. This angle of the louvers, preferably towards one of the supports that accommodate the guide rails, facilitates the drainage of rainwater striking the closed roof surface. The louvers are rotatably mounted on two opposing longitudinal supports of the frame, these supports preferably having integrated guide rails. Preferably, the rainwater is drained towards one of these two longitudinal supports, into which a gutter is integrated.

[0049] Preferably, the slats partially overlap in the closed position and each slat overlaps the adjacent slat, wherein an edge arranged on the slat edge that is at the top in the open position and projects downwards in the closed position engages in a corresponding groove arranged on the top of the adjacent slats.

[0050] This groove thus forms a drainage channel on the slat. This allows rainwater and / or dirt collected on the slats to flow into the drainage channels of the respective slats, from where it flows off to the sides over the edges of the slats. The drainage of water from the channel can be ensured, for example, by sloping the channel relative to the horizontal and / or by tilting the slats themselves relative to the horizontal. This prevents rainwater and / or dirt collected on the slats from entering the space beneath the roof when the slats are opened.

[0051] A protruding edge, parallel to the axis of rotation of the lamella and extending along its entire length, engages in a corresponding groove of the adjacent lamella when closed, creating a closed roof surface and reliably preventing rainwater from passing between two adjacent lamellae.

[0052] Preferably, the louvers have flexible sealing lips which, when the louvers are closed, create a rainproof seal with the adjacent louver. The arrangement of such flexible sealing lips also serves to create a closed roof surface, reliably preventing rainwater from penetrating between two adjacent louvers.

[0053] Preferably, the portion of the slats that pivots upwards from the closed position when the slats are rotated towards the open position has a lip. When the slats are rotated towards the open position, the portion of the slat containing the drainage channel pivots downwards. In particular, such a lip can be formed by a longitudinal edge of the slat, especially one running parallel to its longitudinal axis, and / or by an additional rubber lip attached to the slat profile.

[0054] Preferably, when the louvers are pivoted in the direction of rotation towards the open position, a portion of the louvers pivoting upwards from the closed position has a lip, wherein, at least in the closed position, the lip of a first louver and the drainage channel facing the lip of an adjacent louver interlock. The lip of one louver and the drainage channel of the adjacent louver can interact and interlock.

[0055] An embodiment of the invention is shown in the figures and is explained below. The figures show: Fig. 1 A perspective view of a louvered roof; Figs. 2 to 5 Various schematic and partially sectioned views of selected assemblies of the louvered roof with different louver positions; Fig. 6 Side views of the louver assembly with coupling elements in two different positions; Fig. 6 Detail D according to Figure 6; Fig. 7 perspective views of a movable slat and a slat with integrated tubular motor in schematic representation.

[0056] The figures are not shown to scale and are partly purely schematic in order to explain how the assemblies function.

[0057] Figure 1 Figure 1 shows a perspective view of a louvered roof 1. The louvered roof has four supports that form the frame 2 of the louvered roof 1. A number of louvers are rotatably mounted on the supports, four of which, 10, 20, 30, and 40, are labeled with reference numbers for further explanation. The axes of rotation of louvers 10, 20, 30, and 40 run parallel to their longitudinal extent and thus perpendicular to the extension direction A.

[0058] In the representation according to Figure 1The louvers 10, 20, 30, 40 are pivoted 90° from their closed position towards their open position. The frame 2 of the louvered roof is supported by vertical posts 3 and forms a freestanding structure. The vertical posts 3 are located at the corners of the frame 2. Alternatively, the frame 2 of the louvered roof can be mounted to a house wall on one side. Furthermore, the vertical posts 3 can be recessed, so that they do not necessarily have to be located at the corners of the frame 2 of the louvered roof 1, as shown in the Figure 1 The illustrated embodiment is the case.

[0059] The rotation of the slats 10, 20, 30, 40 is effected by means of a first drive, the operation of which is explained below. Figures 2 to 5 This will be explained. Furthermore, the slats 10, 20, 30, 40 can be used as soon as they are in the Figure 1The open position shown is rotated relative to frame 2, by means of a second drive opposite the extension direction A to a package at which in Figure 1 The support beam of frame 2 located at the bottom right can be pushed together, thereby releasing most of the area spanned by frame 2.

[0060] The louvered roof 1 has two separately controllable drives. The first drive rotates the louvers 10, 20, 30, 40 between the closed and open positions. In the closed position, the louvers 10, 20, 30, 40 lie in the plane defined by the frame 2 of the louvered roof 1 and form a closed roof. From this closed position, the louvers 10, 20, 30, 40 can be rotated into an open position by means of the first drive. Each louver 10, 20, 30, 40 is rotatably mounted about a pivot axis. In the open position, the louvers 10, 20, 30, 40 are positioned perpendicular or nearly perpendicular to the plane defined by the frame 2 of the louvered roof 1. In this open position, the slats 10, 20, 30, 40 can be moved from the closed position to the open position by means of the second drive along guide rails integrated into the supports of the frame 2.The closed position refers to the arrangement in which the louvers 10, 20, 30, 40 are evenly distributed across the plane defined by the frame 2 of the louvered roof 1, and in which the louvers 10, 20, 30, 40 could be rotated into the closed position. The open position of the louvers 10, 20, 30, 40 refers to the arrangement in which the louvers 10, 20, 30, 40 are pushed together into a bundle towards one end of the guide rails, exposing part of the plane defined by the frame 2 of the louvered roof 1. When the louvers 10, 20, 30, 40 are pushed together into such a bundle, rotation of the louvers 10, 20, 30, 40 about their respective axes of rotation is not possible.To prevent damage and incorrect operation, the control of the two drives is designed in such a way that the slats 10, 20, 30, 40 can only be rotated by the first drive in the closed position, and the slats 10, 20, 30, 40 can only be moved by the second drive when they are rotated into the open position.

[0061] The terms closed position and open position thus refer to the relative position of the louvers 10, 20, 30, 40 as a result of the rotation of the louvers 10, 20, 30, 40 relative to the plane spanned by the frame 2 of the louvered roof 1.

[0062] The terms closed position and open position refer to the distribution of the louvers 10, 20, 30, 40 over the plane spanned by the frame 2 of the louvered roof 1. In the closed position, the louvers 10, 20, 30, 40 are evenly distributed over the plane spanned by the frame 2 of the louvered roof 1, while in the open position, the louvers 10, 20, 30, 40 are pushed together into a stack at one end of the guide rails against the direction of extension.

[0063] According to this definition of the terms closed position and open position, or closed position and open position, the slats 10, 20, 30, 40 are located in the representation as shown. Figure 1 in the open position in the closed position.

[0064] Based on the Figures 2 to 5 The following explains the functionality of the drives of the louvered roof 1.

[0065] The Figures 2 to 5Figure 1 shows various schematic and partially sectioned views of selected assemblies of the louvered roof 1 with different louver positions. The representation is purely schematic, as only four louvers (10, 20, 30, 40) are shown in each case, while the actual louvered roof naturally has a considerably larger number of louvers, which, in the closed position, are distributed across the entire roof surface and cover the entire roof area. This is illustrated in the figures. Figures 2 to 5 Each is a perspective view, a rear view B and a side view C of the lamella assembly with the first drive for rotating the lamellae 10, 20, 30, 40 and the second drive for moving the lamellae 20, 30, 40.

[0066] In the representation according to Figure 2The louvers 10, 20, 30, 40 are in the closed position, in which the louvers 10, 20, 30, 40 form a closed roof surface.

[0067] In the representation according to Figure 3 Are the slats 10, 20, 30, 40 rotated counterclockwise in view C by 45° from the closed position? Figure 2 twisted outwards towards the opening position.

[0068] In the representation according to Figure 4 The slats 10, 20, 30, 40 are rotated counterclockwise in view C until they reach the fully open position.

[0069] In the open position, in which the louvers are rotated by 90° relative to the plane spanned by the frame 2 of the louvered roof 1, a movement of the louvers 10, 20, 30, 40 along guide rails from the closed position of the louvers 10, 20, 30, 40 according to Figure 4 into the open position of the slats 10, 20, 30, 40 according to Figure 5possible. In the open position of the slats 10, 20, 30, 40 according to Figure 5 The slats 10, 20, 30, 40 are moved against the direction of extension A and pushed together into a tight package at the end of the guide rails, thus exposing the largest part of the roof area.

[0070] The closing of the louvered roof 1 is carried out in reverse order of a sequence of figures starting at Figure 5 up to Figure 2 , by first moving the lamella pack, which has been pushed together into a package, from the open position according to Figure 5 is extended in the direction of extension A until the slats 10, 20, 30, 40 reach the closed position according to Figure 4 have achieved, and subsequently a synchronous pivoting of the slats 10, 20, 30, 40 from the open position according to Figure 4 about the intermediate position according to Figure 3 up to the closed position of the slats 10, 20, 30, 40 according to Figure 2 This has been done.

[0071] The rotation of the louvers 10, 20, 30, 40 is effected by a first drive. The first drive consists of a tubular motor 15, which is integrated into the first louver 10 in the extension direction A. The first louver 10 in the extension direction A has a corresponding profile cross-section that allows the tubular motor 15 to be accommodated. The tubular motor 15 transmits the torque via the guide rail 5 into the frame structure of the louvered roof 1. The guide rail 5 is integrated into the support of the frame 2, which is shown schematically in the diagram. Figures 2 to 5 not shown.

[0072] Actuation of the tubular motor 15 causes the slats 10, 20, 30, 40 to rotate synchronously. The first slat 10 in the extension direction A is fixed relative to the guide rail 5 and rotatably mounted on the guide rail 5. Fixed position means that the first slat 10 in the extension direction A cannot move along the guide rail 5. A lever arm 12 is fixedly mounted on the axis of rotation of the first slat 10, and a roller 13 is located at its free end. This roller 13 is embedded in the C-shaped profile 6, which runs parallel to the guide rail 5. All other slats 20, 30, 40, which are movable slats 20, 30, 40, have rollers 21, 31, 41 on their axes of rotation which lie in the guide rail 5 and allow the slats 20, 30, 40 to be moved on these rollers 21, 31, 41 along the guide rail 5.

[0073] Furthermore, each of the movable lamellae 20, 30, 40 has a lever arm 22, 32, 42 that is non-rotatably connected to the axis of rotation of the respective lamella 20, 30, 40, and at the free end of each lever arm a roller 23, 33, 43 is arranged, guided in the C-shaped profile 6. An enlarged view of the lamella assembly with the lever arms is shown in Figure 6 shown.

[0074] The C-shaped profile forms the kinematic coupling of all lamellae 10, 20, 30, 40 and constitutes a coupling element 6. The C-shaped profile 6 is vertically displaceable from the support structure 8 via two pivot arms 7. The displaceability of the C-shaped profile 6 relative to the support structure 8 is indicated by the double arrow 9.

[0075] As indicated by arrow 80, the C-shaped profile 6 is spring-loaded. For this purpose, tension springs (not shown) are arranged between the supports of the frame 2 and the C-shaped profile 6, which spring-load the C-shaped profile 6 in the direction of the closed position of the lamellae 10, 20, 30, 40.

[0076] Actuation of the tubular motor 15, which provides the first drive for the louvered roof to rotate the louvers 10, 20, 30, and 40, causes the C-shaped profile 6 to shift upwards via the roller 13 located at the free end of the lever arm 12 of the first louver. This causes the other louvers 20, 30, and 40 to rotate automatically and synchronously. The kinematic coupling of the louvers 10, 20, 30, and 40 is thus achieved via the C-shaped profile 6 and the rollers 13, 23, 33, and 43 guided in the C-shaped profile 6 at the free ends of the lever arms 12, 22, 32, and 42, which are fixedly arranged on the axes of rotation of the louvers 10, 20, 30, and 40.

[0077] By shifting the C-shaped profile 6 in a vertical direction relative to the supporting structure 8, all lamellae 10, 20, 30, 40 are synchronously rotated by actuating the first drive to rotate the lamellae.

[0078] The vertical displacement of the C-shaped profile 6 relative to the supporting structure 8 and the associated rotation of the lamellae 10, 20, 30, 40 is shown in the Figures 2 to 5 recognizable. Also in the Figures 2 to 5 The alignment of the slats 10, 20, 30 40 with the lever arms 12, 22, 32, 42 can be seen.

[0079] After the slats 10, 20, 30, 40 have been moved from the closed position according to Figure 2 by actuating the first drive into the open position according to Figure 4 The process of rotating the lamellae 20, 30, 40 along the guide rail 5 from the closed position is as follows: Figure 4 into the open position according to Figure 5possible. For this purpose, a second drive is provided for the operation of the slats 20, 30, 40.

[0080] This second drive for moving the slats 20, 30, 40 consists of a second tubular motor 50 and a rotating toothed belt 51. The toothed belt 51 can be driven by the tubular motor 50 both in the extension direction A and in the retraction direction against the extension direction A. The toothed belt 51 is rigidly connected to a carriage 44 coupled to the last slat 40 in the extension direction A. Actuation of the tubular motor 50 in the retraction direction against the extension direction A thus causes the last slat 40 in the extension direction A to move against the extension direction A due to the coupling of the toothed belt 51 to the carriage 44.

[0081] The slats are connected to each other by coupling elements, as shown in the Figures 2 to 5 is recognizable and in Figure 6The diagram is shown enlarged. The coupling elements are explained using the coupling of the last lamella 40 in the extension direction A with the adjacent lamella 30 as an example. A coupling arm 36, 37, directed towards the adjacent lamella 30, 40, is freely rotatable on the axes of rotation of each of the two adjacent lamellae 40, 30. The free ends of both coupling arms 36, 37 of the adjacent lamellae 30, 40 are articulated by means of a freely rotatable joint 38.If the last slat 40 in the extension direction A is now moved against the extension direction A by means of the tubular motor 50 of the second drive for moving the slats 20, 30, 40 and the toothed belt 51 driven by the tubular motor 50, the coupling element formed by the coupling arms 36, 37 between the adjacent slats 40, 30 automatically folds together under its own weight, and the last slat 40 in the extension direction A can be moved until it touches the adjacent slat 30. This process continues until all slats 10, 20, 30, 40 are pushed together to form a stack, as shown in [reference]. Figure 5 is shown.

[0082] In the reverse process of the procedure of the lamellae 20, 30, 40 from the open position according to Figure 5 into the closed position according to Figure 4The toothed belt 51 is driven in extension direction A by means of the tubular motor 50. This moves the last slat 40, coupled to the toothed belt 51 in extension direction A, in the extension direction, and the coupling element to the adjacent slat 30 aligns itself. In this way, all movable slats 20, 30, 40 are successively extended from the open position according to Figure 5 back into the closed position according to Figure 4 The procedure is such that each lamella is automatically pulled along after the coupling elements have been set up.

[0083] The joints 18, 28, 38 of the coupling elements have a limit to the opening angle in order to prevent an opening of up to 180° and any jamming, and to ensure that the coupling elements automatically fold together under their own weight force when moving against the extension direction A.

[0084] The slats are connected to each other with coupling elements as explained above, as shown in the Figures 2 to 5 is recognizable and in Figure 6 shown enlarged.

[0085] Figure 6a Detail D shows after Figure 6The position of the axis of rotation 200 of the lamella 20 and the exact position of the center of gravity 210 of the lamella 20, indicated by the arrow, are clearly visible. The lamella 20 is designed such that, in the open position, the center of gravity 210 of the lamella 20 is offset from the axis of rotation 200 by a distance H, resulting in a torque in the direction of the closed position of the lamella 20 from this offset. Furthermore, the center of gravity 210 is positioned and the lamella 20 is equipped with additional weights such that, even in the closed position of the lamella 20, taking into account the mass of the lever arm 22 and the roller 23, the center of gravity 210 of the lamella 20 is always offset by a distance H as shown in the illustration. Fig. 6aStarting from the position of the axis of rotation 200, the roller 23 is offset, so that in all possible positions of the lamellae 10, 20, 30, 40, a torque is always applied in the direction of the closed position of the lamellae 10, 20, 30, 40. This ensures that the roller 23 always fits snugly against the C-shaped profile 6 and that the lamellae 10, 20, 30, 40 are in a defined position.

[0086] Figure 7 Figure 1 shows perspective views of a movable slat 20 and a slat 10 with an integrated tubular motor 15 in a schematic representation not to scale. The lever arms arranged on the axes of rotation of the slats and the coupling elements described previously are visible.

[0087] Along the entire length of the lamella 10, 20 parallel to the axis of rotation, the lamella 10, 20 has a lip 29 at the edge that pivots upwards when rotated into the open position. In the closed position, this lip 29 engages in a corresponding groove 19 of the adjacent lamella 10, 20, forming a seal against rainwater. The groove 19 extends along the entire length of the lamella 10, 20 parallel to the axis of rotation. In the closed position, the groove 19 and lip 29 form a seal against rainwater.

[0088] The louvered roof 1 has a guide rail 5 at each end of the louvers 10, 20, 30, 40. The guide rails 5 are integrated into the longitudinal beams of the frame 2 of the louvered roof 1. The first drive, intended for rotating the louvers 10, 20, 30, 40, can only be provided on a side of the louvered roof 1 perpendicular to the axes of rotation of the louvers 10, 20, 30, 40, in the form of a single tubular motor integrated into the first louver 10.

[0089] The second drive for moving the slats 20, 30, 40 can be formed by a single driven toothed belt 51 on the side of the slat roof 1 located perpendicular to the axes of rotation of the slats 10, 20, 30, 40 or alternatively by two toothed belts 51, in which case a toothed belt 51 is arranged on each side of the slat roof 1 located perpendicular to the axes of rotation of the slats 10, 20, 30, 40.

Claims

1. Slat roof (1) comprising a frame (2) formed from a plurality of beams, wherein a plurality of slats (10, 20, 30, 40) are arranged parallel to one another on the frame (2) between two lateral beams and are mounted rotatably, either directly or indirectly, on the lateral beams, wherein the slats (10, 20, 30, 40) cover the area spanned by the frame (2) in a closed position and are each rotatable about an axis of rotation (200) from the closed position into an open position, wherein the slats (10, 20, 30, 40) are kinematically coupled to one another in such a way that synchronous rotation of the slats (10, 20, 30, 40) takes place, characterised in that the centre of gravity (210) of each slat (10, 20, 30, 40) is positioned such that, in the open position of the slats (10, 20, 30, 40), the centre of gravity (210) is offset by a distance (H) relative to the respective axis of rotation (200), such that a torque in the direction of the closed position of the slats (10, 20, 30, 40) results from the centre of gravity (210) of the slats (10, 20, 30, 40) being offset relative to the axis of rotation (200).

2. Slat roof (1) according to claim 1, characterised in that the slats (10, 20, 30, 40) are kinematically coupled to one another by means of at least one coupling element (6), wherein a roller (13, 23, 33, 43) and / or a slider of each slat (10, 20, 30, 40) is guided in or on the coupling element (6), wherein the roller (13, 23, 33, 43) and / or the slider is coupled to the slat (10, 20, 30, 40) via a lever arm (12, 22, 32, 42), such that a displacement of the coupling element (6) causes the slat (10, 20, 30, 40) to rotate.

3. A slat roof (1) according to claim 1 or 2, characterised in that the slats (10, 20, 30, 40) are kinematically coupled to one another by means of at least one coupling element (6), wherein the coupling element (6) is formed by a profile, in particular a C-shaped profile, in or on which a roller (13, 23, 33, 43) and / or a slider of each slat (10, 20, 30, 40) is guided.

4. Slat roof (1) according to one of the preceding claims, characterised in that the slats (10, 20, 30, 40) are kinematically coupled to one another by means of at least one coupling element (6), wherein the coupling element (6) is springloaded in the direction of movement of the coupling element (6), which causes the slats (10, 20, 30, 40) to rotate into the closed position.

5. A slat roof (1) according to any one of the preceding claims, characterised in that the slats (10, 20, 30, 40) are kinematically coupled to one another by means of at least one coupling element (6), wherein at least one compression spring is arranged between a support and the coupling element (6) and / or at least one slat (10, 20, 30, 40), wherein a fixed end of the compression spring engages with the support, whilst a free end of the compression spring engages with the coupling element and / or with the slat (10, 20, 30, 40), and always exerts a compressive force in the closing direction of the slats (10, 20, 30, 40) on the coupling element (6) and / or the slat (10, 20, 30, 40).

6. A slat roof (1) according to one of the preceding claims, characterised in that the slats (10, 20, 30, 40) are kinematically coupled to one another by means of at least one coupling element (6), wherein at least one tension spring is arranged between a support and the coupling element and / or at least one slat (10, 20, 30, 40), wherein a fixed end of the tension spring engages with the support, whilst a free end of the tension spring engages with the coupling element and / or the slat (10, 20, 30, 40) and always exerts a tensile force in the closing direction of the slats (10, 20, 30, 40) on the coupling element and / or the slat (10, 20, 30, 40).

7. A slat roof (1) according to any one of the preceding claims, characterised in that at least some of the slats (20, 30, 40) are traversable in the open position along guide rails (5) between a closed position, in which the slats (10, 20, 30, 40) are evenly distributed over the area spanned by the frame (2), and an open position, in which the slats (10, 20, 30, 40) are pushed together into a bundle on one side of the surface spanned by the frame (2), wherein the slat roof comprises two separately controllable drives, wherein the first drive serves to rotate the slats (10, 20, 30, 40) between the closed position and the open position, and wherein the second drive serves to move the slats (10, 20, 30, 40) in the open position along the guide rails (5) between the closed position and the open position.

8. Slat roof (1) according to claim 7, characterised in that the second drive is formed by at least one driven traction member, in particular a driven belt, in particular a driven toothed belt (51), which engages directly or indirectly with the slat (40) located furthest in the extension direction, and wherein the slats (10, 20, 30, 40) are coupled by foldable or flexible coupling elements, such that, when the slat (40) at the rear end in the extension direction is moved in the retraction direction, the slats slide together to form a bundle as the coupling elements automatically fold, and wherein the slats (10, 20, 30, 40) are arranged evenly across the area spanned by the frame (2) when the slat (40) at the rear end in the extension direction is moved in the extension direction, due to the coupling elements.

9. A slat roof (1) according to claim 8, characterised in that each coupling element between two adjacent slats (10, 20, 30, 40) is formed by two coupling arms (16, 17, 26, 27, 36, 37), wherein a first end of each coupling arm (16, 17, 26, 27, 36, 37) is arranged so as to be freely rotatable on one of the two slats (10, 20, 30, 40) and the two free ends of the coupling arms (16, 17, 26, 27, 36, 37) are connected to one another so as to be freely rotatable relative to one another by means of a joint (18, 28, 38), in particular that the first end of a coupling arm (16, 17, 26, 27, 36, 37) is arranged so as to be rotatable about the axis of rotation of the slat (10, 20, 30, 40).

10. A slat roof (1) according to one of the preceding claims, characterised in that a first drive for rotating the slats (10, 20, 30, 40) between the closed position and the open position is integrated into a slat (10), whereby, due to the kinematic coupling of the slats via the coupling element, rotation of a single slat (10) by means of the first drive causes a displacement of the coupling element and thus a synchronous rotation of all slats (10, 20, 30, 40).

11. A slat roof (1) according to one of the preceding claims, characterised in that a first drive for rotating the slats is integrated into the first slat (10) in the extension direction, and the axis of rotation of the first slat (10) in the extension direction is fixed relative to the frame (2), in particular that the first drive for rotating the slats is formed by at least one tubular motor (15) integrated into one of the slats (10), wherein the frame (2) and / or a guide rail (5) forms a bearing block for transmitting the torque, in particular that the tubular motor (15) is integrated into the first slat (10) in the extension direction, the axis of rotation of which is fixed relative to the frame.

12. Slat roof (1) according to any one of claims 7 to 11, characterised in that each of the movable slats (10, 20, 30, 40) is guided movably in and / or on the guide rails (5) by means of rollers and / or sliders.

13. A slat roof (1) according to any one of claims 7 to 12, characterised in that the guide rails (5) are integrated into the beams of the frame.

14. A slat roof (1) according to any one of the preceding claims, characterised in that the slats (10, 20, 30, 40) partially overlap in the closed position and each slat (10, 20, 30, 40) overlaps the adjacent slat (10, 20, 30, 40) and an edge arranged on the upper edge of the slat in the open position, which projects downwards in the closed position, engages in a corresponding groove arranged on the upper side of the adjacent slats (10, 20, 30, 40), in particular that the slats (10, 20, 30, 40) have flexible sealing lips, by means of which a rainwater-tight seal is created with the respective adjacent slat (10, 20, 30, 40) when the slats are in the closed position.

15. A slat roof (1) according to one of the preceding claims, characterised in that the maximum rotation of the slats (10, 20, 30, 40) from the closed position to the open position is less than or equal to 90°, in particular less than 80°.