Awning windows for, for example, a caravan, a motorhome or a building

Abstract

The awning window (10) for, e.g., a caravan, a motorhome, or a building is provided with a single- or multi-part window frame (12) and a window sash (22) containing a window pane (27) and having a surrounding edge (25). The edge (25) of the window sash (22) has a window sash retaining section (28) on which, or within which, the window sash (22) is pivotally mounted to the window frame (12) about a pivot axis (24). At least one drive (39) serves for the automatic rotational drive (39) of the pivot axis (24) for pivoting the window sash (22).

Description

[0001] The invention relates to an opening window for, for example, a caravan, a motorhome or a building.

[0002] These types of casement windows are also known as "tilt windows" and feature a sash that is hinged around a pivot axis that coincides with a section of the sash edge, i.e., with a part of the sash's perimeter. Typically, these types of casement windows are pivotally mounted around a pivot axis located in the upper part of the sash edge.

[0003] Awning windows of the aforementioned type are sometimes offered as roof windows and may have a drive mechanism for automatically opening and closing the window sash. These drives typically include an actuator that engages the window sash outside its pivot axis, causing it to rotate around the pivot axis during opening and closing. These actuators pose a potential risk of injury to the user.

[0004] Currently, motorhomes and caravans are equipped with manually operated awning windows. These windows are sometimes difficult to reach from the inside, for example, in the sleeping or seating area of ​​the motorhome. Opening and closing them typically occurs several times a day, which is particularly inconvenient for users with limited mobility. Furthermore, fully opening the awning windows can sometimes be cumbersome.

[0005] The object of the invention is to improve the motorized opening and closing of a vent window in this respect.

[0006] To solve this problem, the invention proposes a hinged window for, for example, a caravan, a motorhome or a building, wherein the hinged window is provided with - a single or multi-part window frame, - a window sash containing a window pane and having a surrounding edge, - wherein the edge of the window sash has a window sash retaining section on which or within which the window sash is pivotally mounted to the window frame about a pivot axis, and - at least one drive for the automatic rotating drive of the pivot axis for pivoting the window sash.

[0007] The inventive approach involves using the drive mechanism itself to automatically rotate the pivot axis. The torque required to open and close the window sash is thus generated by driving the pivot axis. This eliminates the need for actuators or similar components acting on the window sash outside the pivot axis. The window sash has a frame that includes a sash retaining section designed for pivoting and supporting the sash on the window frame.

[0008] According to the invention, one or more of the aforementioned drives can be used to rotate the pivot axis.

[0009] It can be advantageous for at least one drive to have a gearbox with, for example, at least one chain and / or at least one belt and / or at least one gear and / or at least one worm gear. In particular, the gearbox can be self-locking, which has the advantage that the window sash can remain closed without additional locking or can remain in any position when opened.

[0010] Depending on the size of the window sash, at least one drive mechanism must be sufficiently powerful to apply the necessary torque to the pivot axis for opening the window sash, possibly with the aid of a gearbox. It is advantageous if the rotating drive of the pivot axis is power-assisted when opening the window sash. For this purpose, the casement window can advantageously have a torque support unit operatively connected to the pivot axis of the window sash retaining section. This unit applies additional torque to the pivot axis of the window sash retaining section, supplementing the torque already applied by the drive mechanism, particularly when the window sash is being swung open.

[0011] The torque support unit expediently includes a lever which is connected at one end to the pivot axis of the window sash retaining section and has an opposite end at which the torque support unit engages to pivot the lever to open the window sash.

[0012] A suitable torque support unit is a tensile or compressive force generation or storage unit, whereby this generation or storage unit can operate pneumatically or spring-mechanically.

[0013] The force support provided by the torque support unit can be variable, and may be less when the closed window sash is flush against the window frame than in one of the opening positions of the window sash, where the window sash is moved away from the window frame.

[0014] In a further advantageous embodiment of the invention, the window sash retaining section may have an at least partially circular cylindrical cross-section, and the circular cylindrical section of the window sash retaining section may be received by a receiving groove in the window frame that has a complementary shape to this circular cylindrical section and may be pivotably mounted in the receiving groove. It is advantageous if the receiving groove interacts with the circular cylindrical part of the window sash retaining section in a sealing manner. The window sash retaining section may advantageously be designed as a profile strip or as a profile element.

[0015] Typically, casement windows are equipped with a sealing strip that is arranged along the edge of the window sash or on the window pane and, when the closed window sash is against the window frame, seals the gap between the window sash and / or the window pane and the window frame.

[0016] For automatic deactivation of the window sash drive when the window is closed, it is advantageous for the sealing strip to be force-sensitive and to incorporate a sensor, such as an optical, electrical, capacitive, resistive, or inductive one. In addition to its sealing function when the window is closed, the force-sensitive sealing strip also serves as pinch protection by automatically deactivating at least one drive if the window sash is swung against a person's hand or arm during the closing process. The automatic deactivation of at least one drive when the window sash is opened can be achieved, for example, by a limit switch activated by the window sash in its fully open position (either by contact or without contact), and / or by another limit switch triggered by the window sash in its closed position (either by contact or without contact).

[0017] For safety reasons, the casement window should have at least one automatic locking element to automatically lock the window sash to the window frame when the window sash is in the closed position against the window frame and to automatically release the lock to swing the window sash away from the window frame.

[0018] This at least one locking element can operate electromechanically and exert a pressing torque on the window sash resting against the window frame, and to open the window sash, release this pressing torque and / or exert a repulsive torque on the window sash opposite to the pressing torque.

[0019] In a further advantageous embodiment of the invention, the awning window can be provided with a control unit for controlling the at least one drive and, if present, the at least one automatic locking element, and for receiving signals from the force-sensitive sealing strip, if present, from an opening position limit switch, if present, and from signals of a central or decentralized operating device for manually inputting or automatically generating commands to pivot the window sash.

[0020] It can be advantageous for logistics and assembly when installing the awning window according to the invention if the drive and torque support unit, if present, are arranged within or on the window frame.

[0021] Especially when using a awning window in a motorhome or caravan, it is important to minimize the window's weight. In this regard, it is advantageous to use a frameless window pane as the sash, so that the edge of the sash outside its retaining section is formed by the edge of the frameless pane, with the sash retaining section being formed by a retaining element that includes the pivot axis for holding the frameless pane.

[0022] The retaining element is expediently connected in one piece to the window pane, which is advantageously made of or consisting of plastic and is connected to the retaining element by injection molding, wherein this retaining part is also made of or consists of plastic.

[0023] It can be advantageous if the retaining element has at least a semi-circular cylindrical section with a connecting element for connection to the frameless window pane, wherein the semi-circular cylindrical section is received by a receiving groove of the window frame having a shape complementary to this section and is pivotably mounted in the receiving groove.

[0024] The retaining element can be designed as a profile strip, wherein the profile strip of the retaining element has, in addition to the semicircular cylindrical section, the connecting element as a one-piece component.

[0025] In addition to the aforementioned properties, the awning window according to the invention also has the following features and functions: - it is designed for use in motorhomes, caravans or mobile homes, - All opening and closing functions as well as time control functions can be operated centrally or decentrally, - There is central control via CI or similar BUS system, - Electrically switchable sun protection as well as electrically switchable blackout / mosquito protection, - the window sash may have an insulated window pane on double or even triple glazing, - The awning window can be of lightweight construction, and thus has a very thin design, so that it can be completely integrated into or onto the window frame, or, if positioned on the outside of the window frame, it can be integrated into the side wall of the motorhome or building.

[0026] As mentioned above, one advantage of the invention is that it increases the convenience of opening and closing awning windows, particularly in motorhomes and caravans. In addition to automatically opening and closing the window itself, it is also advantageous to be able to motorize the typically used blinds, sunshades, and mosquito nets. Both decentralized and centralized operation of multiple awning windows is possible. For decentralized operation, control panels should be provided near each window. For centralized operation, control via the CI-BUS, commonly used in motorhomes, or via BUS systems with other protocols is conceivable. Control could thus be achieved via a mobile phone or smartphone app, or via a central control unit in the vehicle.Motorhome or caravan, via a central window control unit or automatically time-controlled and / or depending on environmental conditions (daylight dependent).

[0027] Compared to the current state of the art in motorhomes, the electric drive for the window sash represents a significant improvement. This can also be combined, for example, with electrically operated blackout blinds and / or mosquito nets. All of this increases comfort.

[0028] Furthermore, the torque support unit of the electric drive represents another innovation. Only this makes it possible to use an inexpensive, lightweight and compact motor-gearbox combination.

[0029] The force-sensitive seal, which acts as a pinch protection for awning windows in motorhomes, is another advantageous feature. An inexpensive, lightweight, and fully integrated safety function allows for secure central or automated control of the drive.

[0030] In the area of ​​motorhomes and in the area of ​​hinged windows, tilt-and-turn windows or pivot windows for buildings, the rotary drive of the hinged window via its pivot axis represents an advantageous solution, since - a pivot bearing is possible, in which it simultaneously takes over the function of sealing the window sash to the window frame, - the window sash can be designed without a frame, which reduces weight and costs and simplifies cleaning, - a hinged window mounted at its upper end can be designed to be rainwater-repellent even when (partially) open, - the window opens outwards, which does not further restrict the limited space in the vehicle (or in building spaces) and - the construction manages without supports and struts, thus avoiding possible clamping points.

[0031] Application areas of the casement window include roof windows for land, air, and water vehicles and their trailers, especially motorhomes and caravans; casement windows, roof windows, and sash windows for buildings, rooms, and machinery. In this respect, the term "window sash comprising a window pane" is used within the scope of the invention.

[0032] The invention is explained in more detail below with reference to an exemplary embodiment and the drawing. Specifically, the drawing shows: Fig. 1 a side view of the awning window according to an exemplary embodiment in the open state, Fig. 2 an isometric view of the opened awning window according to Fig. 1, Fig. 3 a front view of the open awning window according to Fig. 1, Fig. 4 a simplified cross-sectional view along line IV-IV of the Fig. 3, Fig. 5 a detailed view of the drive unit, Fig. 6 a side view with the awning window closed and Fig. 7 an isometric view of the closed awning window.

[0033] In the Fig. 1, Fig. 2, Fig. 3 to Fig. Figure 4 shows various views of an embodiment of an awning window 10 according to the invention. The awning window 10 has a window frame 12, which is intended for installation in, for example, a motorhome, a caravan, or even a building or roof. The window frame 12 has a circumferential edge 14 in the usual manner, comprising an upper frame section 16, two side frame sections 18, and a lower frame section 20. Figure 21 indicates that the awning window 10 can have insect screens and / or blackout and / or sunshades.

[0034] A window sash 22 is pivotally mounted on the window frame 12 about a pivot axis 24. The window sash 22 itself has a surrounding frame 26, which in this embodiment is formed by the edge 25 of a frameless window pane 27 and which has a window sash retaining section 28 in one of its straight sections. The articulated mounting of the window sash retaining section 28 on the upper frame section 16 of the window frame 12 is shown in Fig. Figure 4 shows that the upper frame section 16 of the window frame 12 has (optionally as an additional element) a bearing and sealing strip 30 in which a semicircular receiving groove 32 is formed, in which the window sash retaining section 28 is pivotably mounted. The window sash retaining section 28 in turn has a profile element or profile strip 33, which comprises a semi-cylindrical cross-sectional section 36 with a connecting element 38 integrally attached to it. This connecting element 38, in turn, engages the window pane 27 at one of its edges and holds it in place, for example, by means of adhesive 37. The profile strip 33 forms a retaining element 34 for holding the window sash 22, i.e., in this example, for holding the frameless window pane 27, and can be integrally manufactured with the window pane 27 if it is made of plastic; here, all possibilities of mechanical or material-bonded connection between the two elements are conceivable.

[0035] A key aspect of the casement window 10 is the electric drive 39, which acts directly on the pivot axis 24 and allows the window sash 22 to be opened and closed by motor. The electric drive 39 comprises an electric motor 40 and a gearbox 42, which in this example is designed as a chain 44 that kinematically connects the drive gear 46 of the electric motor 40 to a gear 48 that is fixedly attached to the shaft 50 defining the pivot axis 24. The shaft 50 is rotationally fixed to the semi-cylindrical section 36 of the retaining element 34, thus pivoting the retaining element 34 in the semi-circular receiving groove 32 as it rotates. In addition to being supported by the receiving groove 32 of the retaining element 34 connected to it, the shaft 50 can also be rotatably mounted at at least one of its ends on the window frame 12 and / or on or in the wall in which the casement window 10 is located.

[0036] As especially in Fig. 1 but also in e.g. Fig. As can be seen in Figure 5, a lever 52 interacts with the shaft 50. This lever may be cranked and project radially from the shaft 50, and is fixed to the shaft 50 in a rotationally fixed manner. Thus, while one end 54 of the lever 52 is connected to the shaft 50, its other end 56 is connected to a tensile force generation unit 58. In this embodiment, the unit comprises one or more tension springs 60 and a guide element 62, which guides the tension springs 60 and is attached to the window frame 12. The tensile force generation unit 58 acts like a torque support unit 64 to assist the rotation of the shaft 50 during opening, i.e., when the window sash 22 is pivoted upwards. In the fully open position of the window sash 22, Fig. 1, Fig. 2 to Fig. 3 The torque applied by the torque support unit 64 is maximized when the lever 52 is radially aligned essentially diametrically opposite the window sash 22. In the closed position of the window sash 22, for example according to the Fig. 6 and Fig. 7. In contrast, the torque introduced into the shaft 50 by the torque support unit 64 has essentially no effect, since the direction of the tensile force effect of the tensile force generation unit 58 intersects the pivot axis 24. Starting from this closed position of the window sash 22, however, even in the initial opening phase of the window sash 22, i.e., at small pivot angles, no excessively large rotational force is required for the shaft 50. This can then easily be supplied by the electric motor 40. As the degree of opening increases, the lever 52 moves further and further counterclockwise until, at the maximum opening position, it reaches the position according to Fig. 1 occupies.

[0037] The advantage of the torque support unit 64 lies particularly in the fact that, due to its power assistance, the electric motor 40 does not need to be small or very powerful. This allows the motor to be installed in the window frame, on the window frame 12, or in the side wall of, for example, a caravan or motorhome. This also applies to the torque support unit 64, which can be positioned parallel to the side frame sections 18 of the window frame 12, either inside or outside, thus also allowing for installation within the wall of the caravan or motorhome. If, as might be necessary for larger awning windows, two drives are used, one can be positioned on the inside of the upper frame section 16 of the window frame 12, at opposite ends.

[0038] The Fig. 6 and Fig. Figure 7 shows, as mentioned previously, the closed position of the window sash 22. These figures will not be discussed further below. They merely serve to better illustrate the features of the casement window according to the invention.

[0039] For example, in Fig. Figure 1 indicates that the window pane 27 has a sealing strip 66 running along its edge 25 on its inner side facing the window frame 12. This sealing strip serves not only as a seal but also as a pinch and crush protection. The sealing strip 66 is force-sensitive, meaning it reacts to compression via a sensor. This is used to automatically switch off the electric motor 40 if there is a risk of injury from pinching or crushing (safety function). For example, when the casement window 10 reaches its closed position, a limit switch 67 is activated, which leads to the switching off of the electric motor 40. Conversely, the electric motor 40 can be automatically switched off by a limit switch indicated at 68 when the window sash 22 reaches its maximum opening position (see Figure 68). Fig. 1, Fig. 2 to Fig. 3) occupies.

[0040] Furthermore, the window sash 22 can be moved into its closed position according to Fig. 6 and Fig. 7 must be secured by at least one locking element 70, which is either manually operated or operates automatically. The latter systems are known, for example, from power closing mechanisms for vehicle tailgates or special building doors or windows. In Fig. 1 indicates that at least one automatically operating locking element is located at 70.

[0041] In Fig. Figure 1 shows that the entire control is carried out by means of a control unit 72, which sends signals to the electric motor 40 to drive the electric motor 40 and receives signals from the limit switch 68, the sealing strip 66 and the at least one locking element 70, or sends a signal to the locking element 70 to unlock the vent window 10. REFERENCE MARK LIST 10 awning windows 12 window frames 14 Edge of the window frame 16 Frame section of the window frame 18 Frame section of the window frame 20 Frame section of the window frame 21 Roller blind 22 window sashes 24. Pivot axis of the window sash 25 Edge of the window pane 26 Frame of the window sash 27 window pane 28 Window sash retaining section 30 Bearing and sealing strip 32 recordings 33 Profile strip with mounting groove 34 retaining element 36 semicircular sections 37 Adhesive 38 Connecting element 39 Drive 40 electric motor 42 gearboxes 44 chain 46 Drive gear 48 gear 50 wave 52 levers 54 End 56 End 58 Traction unit 60 tension springs 62 Guide element 64 Torque Support Unit 66 Sealing strip 67 Limit switches (closed position) 68 Limit switches (open position) 70 Locking element 72 Control unit

Claims

[1] Awning windows (10) for e.g. a caravan, a motorhome or a building, with - a single or multi-part window frame (12), - a window sash (22) having a window pane (27) and a surrounding rim (25), - wherein the edge (25) of the window sash (22) has a window sash retaining section (28) on which or within which the window sash (22) is pivotally mounted to the window frame (12) about a pivot axis (24), and - at least one drive (39) for the automatic rotating drive of the pivot axis (24) for pivoting the window sash (22). [2] Awning window (10) according to claim 1, characterized by , that the at least one drive (39) has a gearbox (42) with, for example, at least one chain (44) or at least one belt or at least one gear or at least one worm gear. [3] Awning window (10) according to claim 1 or 2, characterized bya torque support unit (64) operatively connected to the pivot axis (24) of the window sash retaining section (28) for applying a torque to the pivot axis (24) of the window sash retaining section (28) in addition to the torque applied to the pivot axis (24) of the window sash retaining section (28) by the drive (39), particularly when the window sash (22) is pivoted open, that the torque support unit may optionally have a lever (52) which is connected at one end (54) to the pivot axis (24) of the window sash retaining section (28) and has an opposite end (56) at which the torque support unit (64) acts to pivot the lever (52) to open the window sash (22), that the torque support unit may optionally be a tensile or compressive force generation unit (58) or storage unit, that optionallythe tensile or compressive force generation unit (58) or storage unit operates pneumatically or spring-mechanically and that, if applicable, the torque of the torque support unit (64) acting on the pivot axis (24) of the window sash retaining section (28) is variable and is less when the closed window sash (22) is against the window frame (12) than in one of the opening positions of the window sash (22) in which the window sash (22) is moved away from the window frame (12). [4] Awning window (10) according to one of claims 1 to 3, characterized by, that the window sash retaining section (28) has at least a partially circular cylindrical cross-section and that the circular cylindrical part (36) of the window sash retaining section (28) is received by a receiving groove (32) of the window frame (12) having a complementary shape to this circular cylindrical section (36) and is pivotably mounted in the receiving groove (32) and is in particular arranged to seal, wherein it may be provided that the window sash retaining section (28) is designed as a profile strip (33). [5] Awning window (10) according to one of claims 1 to 4, characterized bya sealing strip (66) which is arranged along the window frame (12) or along the edge (14) of the window sash (22) or on the window pane (27) and, when the closed window sash (22) is in contact with the window frame (12), seals the space between the window sash (22) and / or the window pane (27) and the window frame (12), wherein it may be provided that the sealing strip (66) is force-sensitive and has, for example, optical, electrical, capacitive, resistive or inductive sensor technology and serves as pinch or crush protection. [6] Awning window (10) according to any one of claims 1 to 5, characterized byat least one automatic locking element (70) for automatically locking the window sash (22) to the window frame (12) in the closed state of the window sash (22) in contact with the window frame (12) and for automatically releasing the lock to pivot the window sash (22) away from the window frame (12), wherein it may be provided that the at least one locking element (70) operates electromechanically and exerts a pressing moment on the window sash (22) in contact with the window frame (12) and, in order to open the window sash (22), releases this pressing moment and / or exerts a repulsive moment on the window sash (22) opposite to the pressing moment. [7] Awning window (10) according to any one of claims 1 to 6, characterized bya control unit (72) for controlling the at least one drive (39) and, if present, the at least one automatic locking element (70) and for receiving signals from the force-sensitive sealing strip (66), if present, and signals from a central or decentralized operating device for manually inputting or automatically generating commands to pivot the window sash (22). [8] Awning window (10) according to one of claims 1 to 7, characterized by that the drive (39) and the torque support unit (64), if present, is / are arranged within or on the window frame (12). [9] Awning window (10) according to any one of claims 1 to 8, characterized by, that the edge (14) of the window sash (22) outside its window sash retaining section (28) is formed by the edge (14) of a frameless window pane (27) and that the window sash retaining section (28) is formed by a retaining element (34) having the pivot axis (24) for holding the frameless window pane (27) and that, if necessary,the retaining element (34) has at least a semi-circular cylindrical section (36) with a connecting element (38) for connection with the frameless window pane (27), wherein the semi-circular cylindrical section (36) is received by a receiving groove (32) of the window frame (12) having a shape complementary to this section (36) and is pivotably mounted in the receiving groove (32) and is in particular arranged to seal, and wherein it can be provided that the retaining element (34) is designed as a profile strip (33) and / or that the retaining element (34) is designed as a profile strip (33) which has the semi-circular cylindrical section (36) and the connecting element (38) as a single component. [10] Awning window (10) according to claim 9, characterized by, that the retaining element (34) is integrally connected to the window pane (27), wherein it may be provided that the frameless window pane (27) has or is made of plastic and is connected to the retaining element (34) by injection molding and / or that the retaining element (34) also has or is made of plastic.

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