Louvered roof with movable louvers and integrated drive

Description

[0001] The invention relates to a louvre roof with a frame formed from a plurality of supports, wherein a plurality of louvres are arranged parallel to one another on the frame, which louvres cover the surface spanned by the frame in a closed position, wherein the louvres are each rotatable about a rotation axis from the closed position to an open position and wherein at least some of the louvres in the open position are movable along guide rails between a closed position, in which the louvres are evenly distributed over the surface spanned by the frame, and an open position, in which the louvres are pushed together to form a package on one side of the surface spanned by the frame, wherein the louvre roof has two separately controllable drives,wherein the first drive serves to rotate the slats between the closed position and the open position, and wherein the second drive serves to move the slats in the open position along the guide rails between the closed position and the open position.

[0002] Such a louvre roof is known from EP 2 868 833 A1. WO 2019 / 186213 A1 discloses a louvre roof in which the drive for rotating the louvres is integrated into a louvre.

[0003] From EP 3 024 997 B1 a louvre roof is known, wherein each louvre is rotatably arranged at each of its two ends in a sliding element, wherein the sliding element is displaceable in or on a guide bar and at least one of the two sliding elements of each louvre is provided with a gear between a drive shaft for rotating the louvre and the corresponding end of the louvre, wherein each guide bar is provided with a drive for displacing at least one of the sliding elements, which pushes and / or pulls at least some of the other sliding elements during the displacement, for which purpose a support mechanism is provided between the respective sliding elements.The drive shaft is a rotatable shaft extending in the longitudinal direction of a guide beam, and the gearing of a sliding element consists of a worm mechanism comprising a worm wheel which is displaceable together with the sliding element via the drive shaft and which engages with a gear wheel which is mounted in the sliding element and is or can be coupled to one end of a slat to be driven.

[0004] The disadvantage is that the construction with multiple gears is very complex and cost-intensive and has a considerable weight, which must be taken into account in the static design of the louvre roof.

[0005] The object of the invention is to overcome the disadvantages of the prior art and to develop a louvre roof in such a way that rotation and movement of the louvres is possible using simple means.

[0006] This object is achieved according to the invention by a louvre roof according to claim 1. Advantageous developments of the invention are specified in the subclaims.

[0007] Particularly advantageous in the case of the louvre roof with a frame formed from a plurality of supports, wherein a plurality of louvres are arranged parallel to one another on the frame, which louvres cover the surface spanned by the frame in a closed position, wherein the louvres are each rotatable about a rotation axis from the closed position into an open position and wherein at least some of the louvres in the open position are movable along guide rails between a closed position in which the louvres are evenly distributed over the surface spanned by the frame, and an open position in which the louvres are pushed together to form a package on one side of the surface spanned by the frame, wherein the louvre roof has two separately controllable drives,wherein the first drive serves to rotate the slats between the closed position and the open position, and wherein the second drive serves to move the slats in the open position along the guide rails between the closed position and the open position, is that the first drive for rotating the slats between the closed position and the open position is integrated into a slat, wherein the slats are kinematically coupled to one another, so that a rotation of an individual slat by means of the first drive causes a synchronous rotation of all slats.

[0008] This first drive is integrated into the first slat in the extension direction, with the rotation axis of the first slat in the extension direction being fixed relative to the frame. "Fixed" refers to the fact that the first slat in the extension direction is rotatably mounted but cannot be moved relative to the frame of the louvre roof.

[0009] Accordingly, in this case the first slat in the extension direction is fixed relative to the frame, while all other slats of the slatted roof can be moved along the guide rails.

[0010] This first drive can be an electrically driven motor, particularly a tubular motor. Furthermore, this drive can be a mechanically driven gear or clutch that causes the slat to rotate around its axis of rotation relative to the frame. The slat housing the drive has a corresponding profile cross-section that allows the first drive to be integrated into this slat.

[0011] 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 in a slat, in particular the first slat in the extension direction.

[0012] The louvre roof according to the invention has two separately controllable drives. The first drive rotates the louvres between the closed and open positions. In the closed position, the louvres lie in the plane spanned by the frame of the louvre roof and form a closed roof. From this closed position, the louvres can be rotated into an open position by means of the first drive. Each louvre is mounted for rotation about a rotation axis. In the open position, the louvres are positioned perpendicular or almost perpendicular to the plane spanned by the frame of the louvre roof. In this open position, the louvres can be moved along the guide rails from the closed position to the open position by means of the second drive.The closed position refers to the arrangement in which the slats are evenly distributed over the plane spanned by the frame of the slatted roof and it would be possible to rotate the slats into the closed position. The open position of the slats refers to the arrangement in which the slats are pushed together to form a package towards one end of the guide rails and expose part of the plane spanned by the frame of the slatted roof. When the slats are pushed together to form such a package, it is not possible for the slats to rotate about their respective axes of rotation. To prevent damage and incorrect operation, the control of the two drives is designed in such a way that the slats can only be rotated in the closed position using the first drive and the slats can only be moved using the second drive when the slats are rotated into the open position.

[0013] The terms closed position and open position therefore refer to the relative position of the slats as a result of the rotation of the slats relative to the plane spanned by the frame of the slatted roof.

[0014] The terms "closed position" and "open position" refer to the distribution of the slats across the plane spanned by the frame of the louvre roof. In the closed position, the slats are evenly distributed across the plane spanned by the frame of the louvre roof, while in the open position, the slats are pushed together into a stack at one end of the guide rails, counter to the extension direction.

[0015] A uniform distribution of the slats over the plane spanned by the frame of the slatted roof refers to an equally spaced arrangement of the axes of rotation of the slats, so that in the closed position the slats can be rotated from the open position to the closed position to form a closed roof surface by rotating the slats.

[0016] The direction of travel of the movable slats toward the closed position, with the slats evenly distributed across the plane spanned by the frame, is referred to as the extension direction. Accordingly, the opposite retraction direction refers to the direction of travel of the movable slats toward the open position, with the slats pushed together into a stack at one end of the slatted roof.

[0017] Particularly preferably, the first drive for rotating the slats between the closed position and the open position is 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 dissipating the torque, in particular the tubular motor can be integrated into the first slat in the extension direction, wherein its axis of rotation is arranged stationary relative to the frame.

[0018] In this case, the first slat in the extension direction is fixed and rotatable on the frame of the louvre roof. This slat has an integrated tubular motor for rotating the slats. This tubular motor, integrated into the first slat, is supported by the frame and / or the guide rail to dissipate the torque and causes the slat to rotate around its axis of rotation relative to the frame. Due to the kinematic coupling of the slats to one another, this rotation of the first slats, via the tubular motor integrated into the slat, causes all slats to rotate synchronously.

[0019] According to the invention, each of the slats has at least one lever arm which is articulated on the axis of rotation of the slat and which is guided at its free end in a profile which is in particular C-shaped and runs parallel to the guide rail. In particular, each lever arm can have at its free end a roller which is guided in the profile which is in particular C-shaped.

[0020] This C-shaped profile ensures precise guidance of the free end of each lever arm and also kinematically couples all of the slats' lever arms, resulting in synchronous rotation of the slats. When the first slat in the extension direction is rotated by the drive, e.g., by means of an integrated tubular motor, the action of the lever arm of this driven slat automatically shifts the C-shaped profile, in which all of the rollers arranged at the free ends of all lever arms are guided. This results in synchronous rotation of all slats due to the kinematic coupling of the slats via the C-shaped profile. At the same time, the arrangement of rollers at the free ends of the lever arms allows the slats, once rotated into the open position, to move along the guide rails and along the C-shaped profile forming a coupling rod.

[0021] Preferably, the second drive is formed by at least one driven traction means, in particular a driven belt, in particular a driven toothed belt, which acts directly or indirectly on the last slat in the extension direction and wherein the slats are coupled by collapsible coupling elements, so that when the last slat in the extension direction is moved in the retraction direction, the slats are pushed together to form a package with automatically collapsing coupling elements and wherein the slats are arranged evenly distributed over the area spanned by the frame when the last slat in the extension direction is moved in the extension direction due to the coupling elements.

[0022] It is particularly advantageous for the second drive to be formed by at least one traction mechanism, such as a driven belt, which engages directly or indirectly with the last slat in the extension direction. In particular, this can be a toothed belt. Such a driven belt can be designed as a continuous belt that is directly driven by a motor.

[0023] The last slat in the extension direction is the slat that forms the end of the slat arrangement in the closed position. When pushed together into a tightly packed package in the open position, the slats are thus moved against the extension direction.

[0024] The last slat in the extension direction is thus moved by the driven belt against the extension direction or in the extension direction. The movable slats are coupled to one another by collapsible coupling elements, so that when the last slat in the extension direction moves in the retraction direction, the slats are pushed together to form a package with the coupling elements automatically collapsing. When the last slat in the extension direction moves in the extension direction, the slats are evenly distributed over the area spanned by the frame thanks to the coupling elements. When the slats are moved against the extension direction, the last slat in the extension direction, which is acted upon by the belt, gradually pushes the remaining slats in front of it until the slats are pushed together to form a package at one end of the guide rails against the extension direction and the open position is reached.

[0025] During movement in the extension direction, 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 creates a very simple drive for moving the slats.

[0026] Preferably, each coupling element between two adjacent slats is formed by two coupling arms, wherein a first end of a coupling arm is arranged freely rotatably on one of the two slats and the two free ends of the coupling arms are connected to one another freely rotatably by means of a joint, in particular that the first end of a coupling arm is arranged rotatably about the axis of rotation of the slat.

[0027] Due to the rotatable linkage on each slat and the articulated connection, the two lever arms form a V-shaped coupling element that automatically collapses when the two slats are pushed together. This V-shaped coupling element opens again when the adjacent slats are pulled apart, so that the rear slat in the extension direction is automatically pulled along by the slat in front. The coupling elements collapse due to the weight acting on the two coupling arms, without the need for any further intervention.

[0028] 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°.

[0029] Such an angular limitation of the opening angle of the joint ensures that the coupling elements are always automatically folded together when pushed together and that jamming or over-rotation of the joint is reliably prevented.

[0030] 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.

[0031] Preferably, the guide rails are integrated into the frame supports. Particularly preferably, a traction mechanism of the second drive for moving the slats is integrated into the frame supports. Integrating the guide rails and / or a traction mechanism 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 dirt by being integrated into the frame.

[0032] Preferably, a drive motor for actuating the traction mechanism of the second drive for moving the slats is integrated into the supports of the frame or into the first slat in the extension direction. This drive motor for actuating the traction mechanism of the second drive can, in particular, be a tubular motor.

[0033] Thus, the first slat in the extension direction, which is fixed to the frame, can incorporate both a first tubular motor for rotating the slats and a second tubular motor for driving the traction mechanism for moving 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.

[0034] Preferably, the slats are arranged at an incline towards one of the supports, and the frame has at least one gutter, at least on the geodetically lower side of the slats, for collecting and draining rainwater striking the closed slats. Such an inclination of the slats, preferably towards one of the supports holding the guide rails, drains the rainwater striking the closed roof surface. The slats are rotatably mounted on two opposite longitudinal supports of the frame, which supports preferably have integrated guide rails. Rainwater is preferably drained towards one of these two longitudinal supports, into which a gutter is integrated.

[0035] Preferably, the slats partially overlap in the closed position and each slat overlaps the adjacent slat, wherein an edge arranged on the slat edge which is at the top in the open position and which projects downwards in the closed position engages in a corresponding groove arranged on the top side of the adjacent slats.

[0036] This groove thus forms a drainage channel on the slats. This allows precipitation and / or dirt collected on the slats to flow into the drainage channels of the respective slats, from where it flows out to the sides over the respective side edges of the slats. The drainage of water from the drainage channel can be ensured, for example, by sloping the drainage channel relative to the horizontal and / or by sloping the slats themselves relative to the horizontal. This prevents the precipitation and / or dirt collected on the slats from entering the space beneath the roof when the slats are opened.

[0037] A protruding edge, which runs parallel to the slat's axis of rotation over the entire length of the slat and engages in a corresponding groove in the adjacent slat when closed, creates a closed roof surface and reliably prevents rainwater from penetrating between two adjacent slats.

[0038] The slats preferably have flexible sealing lips, which, when the slats are closed, create a rainwater-tight seal with the adjacent slat. The arrangement of such flexible sealing lips also serves to create a closed roof surface, reliably preventing rainwater from penetrating between two adjacent slats.

[0039] Preferably, the part of the slats that pivots upward from the closed position of the slats when pivoting the slats in the direction of rotation toward the open position has a lip. When pivoting the slats in the direction of rotation toward the open position, the part of the slat that has the drainage channel pivots downward. In particular, such a lip can be formed by a longitudinal edge of the slat, particularly one that runs parallel to the longitudinal extension, and / or by an additional rubber lip attached to the profile of the slat.

[0040] When pivoting the slats in the direction of rotation toward the open position, each part of the slats that pivots upward from the closed position of the slats preferably has a lip, wherein, at least in the closed position of the slats, the lip of a first slat and the drainage channel of an adjacent slat facing the lip engage with each other. The lip of one slat and the drainage channel of the adjacent slat can interact and interlock.

[0041] An embodiment of the invention is illustrated in the figures and explained below. They show: Fig. 1: A perspective view of a louvre roof; Fig. 2 to Fig. 5: Various schematic and partially sectioned views of selected assemblies of the louvre roof with different louvre positions; Fig. 6: Side views of the louvre assembly with coupling elements in two different positions; Fig. 7: Perspective views of a movable louvre and a louvre with an integrated tubular motor in a schematic representation.

[0042] The representation of the figures is not to scale and is partly purely schematic in order to explain the functionality of the components.

[0043] Figure 1shows a perspective view of a louvre roof 1. The louvre roof has four supports that form the frame 2 of the louvre roof 1. A plurality of louvres are rotatably mounted on the supports, four of which, louvres 10, 20, 30, 40, are provided with reference numerals for further explanation. The axes of rotation of the louvres 10, 20, 30, 40 run parallel to the longitudinal extension of the louvres 10, 20, 30, 40 and thus perpendicular to the extension direction A.

[0044] In the representation according to Figure 1The slats 10, 20, 30, 40 are pivoted by 90° relative to the closed position of the slats 10, 20, 30, 40 in the direction of the open position of the slats 10, 20, 30, 40. The frame 2 of the slatted roof is supported by vertical posts 3 and forms a free-standing construction. The vertical posts 3 are arranged at the corners of the frame 2. Alternatively, the frame 2 of the slatted roof can be mounted on one side to a house wall. Furthermore, the vertical posts 3 can be indented, so that they do not necessarily have to be arranged at the corners of the frame 2 of the slatted roof 1, as shown in the Figure 1 illustrated embodiment is the case.

[0045] The rotation of the slats 10, 20, 30, 40 is carried out by means of a first drive, the functioning of which is explained below using the Figures 2 to 5 Furthermore, the slats 10, 20, 30, 40, once they are in the position shown in Figure 1shown opening position are rotated relative to the frame 2, by means of a second drive against the extension direction A to a package at the in Figure 1 The supports of frame 2 located at the bottom right are pushed together, thereby releasing most of the area spanned by frame 2.

[0046] The louvre roof 1 has two separately controllable drives. The first drive rotates the louvres 10, 20, 30, 40 between the closed position and the open position. In the closed position, the louvres 10, 20, 30, 40 lie in the plane spanned by the frame 2 of the louvre roof 1 and form a closed roof. From this closed position, the louvres 10, 20, 30, 40 can be rotated into an open position by means of the first drive. Each louvre 10, 20, 30, 40 is mounted for rotation about a rotation axis. In the open position, the louvres 10, 20, 30, 40 are positioned perpendicular or nearly perpendicular to the plane spanned by the frame 2 of the louvre roof 1. In this opening 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 slats 10, 20, 30, 40 are evenly distributed over the plane spanned by the frame 2 of the slatted roof 1 and a rotation of the slats 10, 20, 30, 40 into the closed position would be possible. The open position of the slats 10, 20, 30, 40 refers to the arrangement in which the slats 10, 20, 30, 40 are pushed together to form a package towards one end of the guide rails and release part of the plane spanned by the frame 2 of the slatted roof 1. When the slats 10, 20, 30, 40 are pushed together to form such a package, a rotation of the slats 10, 20, 30, 40 about their respective axes of rotation is not possible.In order to prevent damage and incorrect operation, the control of the two drives is designed in such a way that rotation of the slats 10, 20, 30, 40 by means of the first drive is only possible in the closed position and movement of the slats 10, 20, 30, 40 by means of the second drive is only possible when the slats 10, 20, 30, 40 are rotated into the open position.

[0047] The terms closed position and open position thus refer to the relative position of the slats 10, 20, 30, 40 as a result of the rotation of the slats 10, 20, 30, 40 relative to the plane spanned by the frame 2 of the slatted roof 1.

[0048] The terms "closed position" and "open position" refer to the distribution of the slats 10, 20, 30, 40 across the plane spanned by the frame 2 of the slatted roof 1. In the closed position, the slats 10, 20, 30, 40 are evenly distributed across the plane spanned by the frame 2 of the slatted roof 1, while in the open position, the slats 10, 20, 30, 40 are pushed together into a package at one end of the guide rails, counter to the extension direction.

[0049] 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 in the illustration according to Figure 1 in the open position in the closed position.

[0050] Based on the Figures 2 to 5 The functionality of the drives of the louvre roof 1 is explained below.

[0051] The Figures 2 to 5show various schematic and partially sectioned views of selected assemblies of the louvre roof 1 with different louvre positions. The illustration is purely schematic, as only four louvres 10, 20, 30, 40 are shown, while the actual louvre roof naturally has a considerably larger number of louvres, which are distributed over the entire roof surface of the louvre roof in the closed position and cover the entire roof surface. Shown in the Figures 2 to 5 is a perspective view, a view B from the rear and a view C from the side of the slat assembly with the first drive for rotating the slats 10, 20, 30, 40 and the second drive for moving the slats 20, 30, 40.

[0052] In the representation according to Figure 2the slats 10, 20, 30, 40 are in the closed position, in which the slats 10, 20, 30, 40 form a closed roof surface.

[0053] In the representation according to Figure 3 the slats 10, 20, 30, 40 are rotated counterclockwise in view C by 45° from the closed position to Figure 2 twisted out towards the opening position.

[0054] In the representation according to Figure 4 the slats 10, 20, 30, 40 are rotated counterclockwise in view C until they are fully opened.

[0055] In the opening position, in which the slats are rotated by 90° relative to the plane defined by the frame 2 of the slatted roof 1, the slats 10, 20, 30, 40 can be moved along guide rails from the closed position of the slats 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 extension direction A and pushed together into a tight package at the end of the guide rails, thus freeing up most of the roof area.

[0056] The closing of the louvre roof 1 is carried out in reverse a sequence of figures starting at Figure 5 up to Figure 2 by first pushing the lamella pack together into a package from the open position according to Figure 5 in extension direction A until the slats 10, 20, 30, 40 reach the closed position according to Figure 4 have been reached, and then 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 to the closed position of the slats 10, 20, 30, 40 according to Figure 2 occurs.

[0057] The rotation of the slats 10, 20, 30, 40 is effected by means of a first drive. The first drive is formed by a tubular motor 15, which is integrated into the first slat 10 in the extension direction A. The first slat 10 in the extension direction A has a corresponding profile cross-section, which allows the installation of the tubular motor 15. The tubular motor 15 transfers the torque via the guide rail 5 into the frame construction of the slatted roof 1. The guide rail 5 is integrated into the support of the frame 2, which in the schematic representation according to the Figures 2 to 5 is not shown.

[0058] Actuation of the tubular motor 15 causes synchronous rotation of the slats 10, 20, 30, 40. The first slat 10 in the extension direction A is stationary relative to the guide rail 5 and rotatably mounted on the guide rail 5. "Stationary" means that the first slat 10 in the extension direction A cannot be moved along the guide rail 5. A lever arm 12 is arranged in a rotationally fixed manner on the rotation axis of the first slat 10, and a roller 13 is arranged at its free end. This roller 13 lies 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.

[0059] Furthermore, each of the movable slats 20, 30, 40 has a lever arm 22, 32, 42 which is connected in a rotationally fixed manner to the rotation axis of the respective slat 20, 30, 40, and at the free end of which a roller 23, 33, 43 is arranged which is guided in the C-shaped profile 6. An enlarged view of the slat assembly with the lever arms is shown in Figure 6 shown.

[0060] The C-shaped profile 6 forms the kinematic coupling of all slats 10, 20, 30, and 40 and forms a coupling rod. The C-shaped profile 6 is attached to the support structure 8 via two pivot arms 7, allowing vertical movement. The displaceability of the C-shaped profile 6 relative to the support structure 8 is indicated by the double arrow 9.

[0061] Actuation of the tubular motor 15, which forms the first drive of the louvre roof for rotating the louvres 10, 20, 30, 40, thus causes a corresponding upward displacement of the C-shaped profile 6 via the roller 13 arranged at the free end of the lever arm 12 of the first louvre, whereby the other louvres 20, 30, 40 automatically rotate synchronously. The kinematic coupling of the louvres 10, 20, 30, 40 thus takes place via the C-shaped profile 6 and the rollers 13, 23, 33, 43 guided in the C-shaped profile 6 at the free ends of the lever arms 12, 22, 32, 42, which are arranged in a rotationally fixed manner on the axes of rotation of the louvres 10, 20, 30, 40.

[0062] With the displacement of the C-shaped profile 6 in the vertical direction relative to the supporting structure 8, a synchronous rotation of all slats 10, 20, 30, 40 takes place by actuating the first drive for rotating the slats.

[0063] The vertical displacement of the C-shaped profile 6 relative to the supporting structure 8 and the associated rotation of the slats 10, 20, 30, 40 is shown in the Figures 2 to 5 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.

[0064] After the slats 10, 20, 30, 40 have been moved from the closed position according to Figure 2 by operating the first drive in the opening position according to Figure 4 have been rotated, a movement of the slats 20, 30, 40 along the guide rail 5 from the closed position according to Figure 4 into the open position according to Figure 5 possible. A second drive is provided for moving the slats 20, 30, and 40.

[0065] This second drive for moving the slats 20, 30, 40 is formed by 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 firmly 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.

[0066] The slats are connected to each other with coupling elements, as shown in the Figures 2 to 5 is recognizable and in Figure 6The coupling elements are explained using the coupling of the last slat 40 in the extension direction A with the adjacent slat 30 as an example. A freely rotatable coupling arm 36, 37 is arranged on the rotation axes of each of the two adjacent slats 40, 30, directed toward the adjacent slat 30, 40. The free ends of both coupling arms 36, 37 of the adjacent slats 30, 40 are connected in an articulated manner 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 from the coupling arms 36, 37 between the adjacent slats 40, 30 automatically collapses under its own weight and the last slat 40 in the extension direction A can be moved until it rests against the adjacent slat 30. This process continues until all slats 10, 20, 30, 40 are pushed together to form a package, as shown in . Figure 5 is shown.

[0067] In the reverse process of moving the slats 20, 30, 40 from the open position according to Figure 5 into the closed position according to Figure 4the toothed belt 51 is driven by the tubular motor 50 in the extension direction A. As a result, the last slat 40 coupled to the toothed belt 51 in the extension direction A is moved in the extension direction and the coupling element to the adjacent slat 30 is positioned. Thus, one after the other, all movable slats 20, 30, 40 are moved from the open position according to Figure 5 back to the closed position according to Figure 4 because each slat 20, 30 is automatically pulled along after the coupling elements have been set up.

[0068] The joints 18, 28, 38 of the coupling elements have a limitation of the opening angle in order to avoid an opening of up to 180° and any jamming and to ensure that the coupling elements automatically fold together under their own weight when moving against the extension direction A.

[0069] Figure 7shows 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 rotation axes of the slats as well as the previously explained coupling elements are visible.

[0070] Across the entire length of the slat 10, 20 parallel to the rotation axis, the slat 10, 20 has a lip 29 on the edge that swings upwards when rotated into the open position. In the closed position, this lip 29 rests in a corresponding groove 19 of the adjacent slat 10, 20 and forms a seal against incoming rainwater. The groove 19 extends across the entire length of the slat 10, 20 parallel to the rotation axis. In the closed position, the groove 19 and lip 29 form a seal against incoming rainwater.

[0071] The louvre roof 1 has a guide rail 5 at each end of the louvres 10, 20, 30, 40. The guide rails 5 are integrated into the longitudinal members of the frame 2 of the louvre roof 1. The first drive provided for rotating the louvres 10, 20, 30, 40 can be provided only on one side of the louvre roof 1 perpendicular to the rotation axes of the louvres 10, 20, 30, 40 in the form of a single tubular motor integrated into the first louvre 10.

[0072] 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 slatted 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 slatted roof 1 located perpendicular to the axes of rotation of the slats 10, 20, 30, 40.

Claims

1. Slat roof (1) with a frame (2) formed from multiple supports, wherein multiple slats (10, 20, 30, 40) are arranged parallel to one another on the frame (2), which cover the surface spanned by the frame (2) in a closed position, wherein the slats (10, 20, 30, 40) are each rotatable about an axis of rotation from the closed position into an open position and wherein at least part of the slats (20, 30, 40) in the open position are movable along guide rails (5) between a closed position in which the slats (10, 20, 30, 40) are evenly distributed over the surface spanned by the frame (2), and an open position in which the slats (10, 20, 30, 40) are pushed together on one side of the surface spanned by the frame (2) to form a stack, wherein the slat roof has 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, characterised in that the first drive for rotating the slats (10, 20, 30, 40) between the closed position and the open position is integrated into a slat (10), wherein the slats (10, 20, 30, 40) are kinematically coupled to one another, such that a rotation of an individual slat (10) by means of the first drive causes a synchronous turning of all slats (10, 20, 30, 40), wherein the first drive 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 arranged in a stationary manner relative to the frame (2), wherein each of the slats (10, 20, 30, 40) has at least one lever arm (12, 22, 32, 42) which is articulated to the axis of rotation of the slat (10, 20, 30, 40) and which is guided at its free end in a profile which is in particular C-shaped and extends parallel to the guide rail (6).

2. Slat roof (1) according to claim 1, characterised in that the first drive for rotating the slats (10, 20, 30, 40) between the closed position and the open position 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 dissipating the torque, in particular in that the tubular motor (15) is integrated into the first slat (10) in the extension direction, wherein its axis of rotation is arranged in a stationary manner relative to the frame.

3. Slat roof (1) according to any one of the preceding claims, characterised in that each lever arm (12, 22, 32, 42) has at its free end a roller (13, 23, 33, 43) guided in the, in particular, C-shaped, profile (6).

4. Slat roof (1) according to any one of the preceding claims, characterised in that the second drive is formed by at least one driven traction means, in particular a driven belt, in particular a driven toothed belt (51), which engages indirectly or directly on the last slat (40) in the extension direction, and wherein the slats (10, 20, 30, 40) are coupled to one another by foldable coupling elements, so that during a movement of the last slat (40) in the extension direction in the retraction direction, the slats are pushed together into a stack by the automatic folding of the coupling elements and wherein, during a movement in the extension direction of the last slat (40) in the extension direction, the slats (10, 20, 30, 40) are arranged evenly distributed across the area spanned by the frame (2) due to the coupling elements.

5. Slat roof (1) according to any one of the preceding claims, characterised in that the slats (10, 20, 30, 40) are coupled by foldable coupling elements, wherein each coupling element between two adjacent slats (10, 20, 30, 40) is formed by two coupling arms (16, 17, 26, 27, 36, 37), wherein in each case a first end of a coupling arm (16, 17, 26, 27, 36, 37) is arranged freely rotatably on in each case 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 in that the first end of a coupling arm (16, 17, 26, 27, 36, 37) is arranged rotatably about the axis of rotation of the slat (10, 20, 30, 40).

6. Slat roof (1) according to claim 5, characterised in that each coupling element has an angular limitation of the opening angle of the joint connecting the two free ends, in particular in that the opening angle of the joint is limited to below 170° or to an angle below 160°.

7. Slat roof (1) according to any one of the preceding claims, characterised in that each of the movable slats (10, 20, 30, 40) is guided in the guide rails (5) so as to be movable by means of rollers and / or glides.

8. Slat roof (1) according to any one of the preceding claims, characterised in that the guide rails (5) are integrated into the supports of the frame.

9. Slat roof (1) according to any one of the preceding claims, characterised in that a traction means (51) of the second drive for moving the slats (10, 20, 30, 40) is integrated into the supports of the frame (2).

10. Slat roof (1) according to any one of the preceding claims, characterised in that a drive motor for actuating a traction means (51) of the second drive for moving the slats (10, 20, 30, 40) is integrated into the supports of the frame (2) or into the first slat (10) in the extension direction.

11. Slat roof (1) according to any one of the preceding claims, characterised in that the slats (10, 20, 30, 40) are arranged at an inclination in the direction of one of the supports of the frame (2) and the frame (2) has, at least on the geodetically lower side of the slats (10, 20, 30, 40), at least one rain gutter for collecting and draining rainwater striking the closed slats.

12. 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) engages over the adjacent slat (10, 20, 30, 40) and an edge arranged at the slat edge located at the top in the open position and projecting downwards in the closed position engages in a corresponding groove arranged on the top side of the adjacent slats (10, 20, 30, 40).

13. Slat roof (1) according to any one of the preceding claims, characterised in that the slats (10, 20, 30, 40) have flexible sealing lips by means of which, when the slats are in the closed position, a rainwater-tight seal is created with the respective adjacent slat (10, 20, 30, 40).