EP3434851B1 - Window - Google Patents

Description

The invention relates to a window with a window frame and a window sash which is pivotably connected to the window frame.

Various windows of this type have become known from the prior art, which are increasingly being used as roof windows arranged at an incline. In order to achieve a bright interior in attic apartments, large roof windows with a window area of several square meters and correspondingly heavy window sashes are often used. The window sashes are usually pivotable about a horizontal pivot axis at an upper end of the window. In order to open a window sash of such an inclined window or a roof window and to keep it in an open state, drives with pneumatic and/or hydraulic cylinders are often used. The disadvantage here is that when the window is in the closed state, drives of this type generally protrude into an interior space and are therefore visible in the interior space, as a result of which an aesthetic impression in particular is severely impaired. WO 97/04204 A1 discloses an example of a window.

This is where the invention comes in. The object of the invention is to specify a window of the type mentioned at the outset, which can be opened in a stable manner even when arranged at an incline, and at the same time is aesthetically pleasing.

According to the invention, this object is achieved by a window according to claim 1 .

As part of the invention, it was recognized that the use of a rigid chain in a window leads to a much more aesthetic design, since the rigid chain can be rolled up or wound up when the window is closed, so that, unlike cylinders or other linear drives, they are in a closed Condition of the window takes up a much smaller space and can be stowed invisibly in the window in an interior. A rigid chain, which is also referred to as a rigid back chain, is unlike normal chains made of one straight, along a longitudinally aligned or stretched position only flexible in one direction perpendicular to the longitudinal direction, but rigid in all other directions. Furthermore, a rigid chain is also suitable for the transmission of compressive forces in the longitudinal direction. The linear chain is therefore usually connected to the window frame and the window sash in such a way that the window sash can be opened by a compressive force transmitted by the linear chain, with the linear chain being loaded by gravity of the window sash when the window is open in such a way that the chain does not kink. A moment acting on the rigid chain due to the force of gravity of the window sash when the window is open preferably acts in the opposite direction to the direction in which the rigid chain is flexible. For spooling of the chain, which leads to closing of the window, the chain is bent at the window frame in a direction in which the chain is flexible and pulled into the window frame, after which the push chain is spooled.

It has proven itself that the rigid chain is connected to a longitudinal beam of the window frame. The window frame usually has two parallel, approximately horizontally aligned transverse bars and two longitudinal bars arranged perpendicular to these. When the window is arranged as a roof window, an upper crossbar normally forms an upper end of the window and another, lower crossbar forms a lower end of the window. Arranging the rigid chain in connection with a longitudinal bar or in a longitudinal bar of the window frame ensures that when the window is used as a skylight, the view out of the window is not impaired by the rigid chain when the window sash is in an open state due to the rigid chain is held. When the window is open, the linear chain then forms only a connection between a longitudinal beam and a side edge of the window sash.

It is favorable if the rigid chain can be wound up in a longitudinal beam of the window frame, preferably in a plane lying perpendicular to a pivot axis about which the window sash can be pivoted. This allows the linear chain to be stowed away in a minimum of space when the window is closed. A mechanism with which the window can be opened and held in an open state is therefore not visible when the window is closed, in contrast to roof windows of the prior art. For this purpose, the window pillar usually has a height such that at least two layers of the linear chain can be arranged one above the other in the window pillar. As a rule, a guide is provided in the longitudinal bar, so that the rigid chain can be wound up along a defined path in the longitudinal bar.

It is advantageous if two push chains are provided on opposite longitudinal beams of the window frame, which act on opposite sides of the window sash. As a result, on the one hand, a symmetrical loading of the window sash and the frame is ensured by gravity of the window sash. On the other hand, this also results in an attractive appearance because the linear chains can be positioned symmetrically on the window. At the same time, the push chains can thus be made narrower than in a likewise possible embodiment of the invention, in which the window sash is opened and kept open by a single push chain.

It is preferably provided that a drive connected to the rigid chain is provided, with which the window sash can be opened and closed by means of the rigid chain. The window can thus be opened, kept open and closed without manual effort. The drive can basically be designed as any actuator, for example as an electric, pneumatic or hydraulic drive, which is connected to the chain in such a way that a force can be applied to the chain with the drive in order to pivot the window sash relative to the window frame.

It is favorable if the drive is arranged at an end of the longitudinal beam opposite a pivot axis. The drive can then, for example, extend along a lower crossbar of the window frame or in this crossbar, so that the drive is also not visible and does not impair the appearance of the window in the interior. By arranging the motor at the bottom, there is also a reduction in visible width, so that a particularly attractive appearance is achieved.

As a rule, the drive has a brake. With the brake, the window is kept in an open state via the rigid chain after the window has been opened by means of the rigid chain and the drive. Usually, the brake is only released when the drive is operated to open or close the window.

It has proven that the drive has a planetary gear. With planetary gears, a large translation is possible in a small space, so that even heavy windows can be operated with a small actuator.

It is advantageously provided that the drive has an electric motor, in particular a servo motor. As a rule, the electric motor is connected to the rigid chain via a gear, in particular a planetary gear. On the one hand, this enables a particularly precise control of the window. On the other hand, an electric motor connected to the rigid chain via a gear, with which a speed of the electric motor is usually stepped down, can be designed to be particularly slim, so that the space required for the drive is minimal. The drive can then be arranged in a simple manner on a part of the frame, for example the lower transverse beam, in such a way that it is not visible in an interior space.

It has proven that a sensor acting on the drive is provided, with which it can be determined whether an object, in particular a person, is in an area of the window, in particular in an area through which the window sash can be moved from an open position during a closing movement Position is moved. As a result, when the drive is actuated, it can be taken into account in a simple manner whether a person is in a range of movement of the window sash, which the sash passes during a closing movement from an open position in which the window sash is usually aligned horizontally. Such a sensor can be formed, for example, by one or more light barriers in the window frame, in particular infrared light barriers or a light barrier curtain, or can include such devices. Furthermore, a function of a corresponding sensor can also be based on radar or ultrasonic waves and on capacitive or inductive measurement methods in order to detect a person located in the area of the window or the window frame.

A safety device to prevent injuries to persons can be formed in a simple manner if a controller connected to the sensor and the drive is provided, with which a movement of the window sash can be restricted or prevented if the sensor detects an object in an area , through which the window sash is moved during a closing movement. Will from If, for example, when the window is open, the sensor detects a person who is located between the longitudinal bars of the window and with whom the window sash would collide during a closing movement, the control can easily prevent the window from being closed by means of the drive and/or a movement of the Window sash can be blocked by means of a brake. This reliably prevents injuries to people caused by the actively moving window sash, even with large windows.

Alternatively or additionally, a blocking of the window sash during a closing movement by a person in a movement area of the window sash or an inhibition of the closing movement due to a collision of the window sash with a person can be detected in order to interrupt the movement if necessary and to avoid injuries.

A risk of injury from a window lowering due to gravity in the event of a power failure can be avoided in a simple manner by a brake with which the window sash can be held in an open position in which the window sash is usually aligned approximately horizontally. Alternatively or additionally, the drive can also be self-locking, for example with a worm gear.

The roof window can therefore also be used as a large, in particular almost room-high, window in attic apartments with a large inclination of up to 75° without risk of injury, whereby the window sash can be opened to a horizontal position, so that it forms a roof and an area under the open one Casement window can be used as a covered roof terrace.

The electric motor is usually connected to a power grid. In order to be able to close an inclined window in a controlled manner even if a power supply fails, it is advantageous for the electric motor to be connected to a resistor so that in the event of a power supply failure, the window can be closed in a controlled manner by means of the electric motor and an electric current generated in the electric motor Energy in resistance can be converted into heat. For this purpose, the resistor preferably has a maximum power, which when the Skylight to be converted into heat power corresponds. The resistor can be arranged in part of the window frame, for example.

It is favorable if the linear chain is guided in a guide with a deflection in the window frame. The linear chain is thus guided in the window frame, usually in a longitudinal bar, along the window frame or the longitudinal bar until the linear chain is deflected via the deflection. After the deflection, an orientation of the rigid chain corresponds to a direct connection between a position at which the rigid chain is connected to the window sash and the deflection in the window frame. When the window is closed, this orientation is generally perpendicular to a window surface or a window pane arranged in the window sash if the linear chain is connected to both the window frame and the window sash at the same distance from an upper transverse beam. With an increasing opening angle of the window sash relative to the window frame, the orientation of the rigid chain between the deflection and the window sash also changes, so that when the window sash is opened at an angle of 90° relative to the window frame, the rigid chain is positioned at an angle of about 45° to the window sash and to the window frame .

In order to reliably prevent the rigid chain from buckling in an area between the window sash and the deflection that is loaded by the window sash, it is advantageous if the deflection is spring-loaded in such a way that the rigid chain is loaded in the opposite direction over a free length between the window frame and the window sash is, in which the rigid chain is flexible. Due to the spring-loaded deflection, a moment acts on the linear chain in the opposite direction to that in which the linear chain is flexible. This ensures that a compressive force can be transmitted with the linear chain in the area between the window frame and window sash in order to reliably open and close the window or to keep it in an open state.

It has been proven that the deflection is at a distance from an end of the longitudinal beam opposite a pivot axis, which corresponds to 20% to 60%, in particular 30% to 50%, of a length of the longitudinal beam. As a result, on the one hand, a favorable loading of the linear chain is achieved. At the same time, on the other hand the length of the linear chain is also short enough so that it can be stowed in a slim window frame out of sight from the interior.

Provision is preferably made for the window sash to be connected to the window frame in such a way that an instantaneous pole of the window sash is spaced apart from the window frame in an opening direction at the start of an opening movement. The opening direction is a direction in which the window can be opened. In the case of roof windows arranged on buildings, this opening direction is generally perpendicular to a window pane of the closed window and is oriented outwards. Appropriate arrangement of the instantaneous pole ensures that the window sash can also be opened without collision if the window sash is flush with a facade. This is often required for skylights that are used in attic conversions in inner cities.

According to the invention, the window sash is connected to the window frame in such a way that an instantaneous pole of the window sash is at a distance from the window sash in a longitudinal direction of the window frame at the start of an opening movement. The longitudinal direction is understood here as the direction along which the upper transverse bar is spaced apart from the lower transverse bar and along which the longitudinal bars of the window frame are aligned. As a rule, at the beginning of an opening movement, the instantaneous center lies in a plane perpendicular to a pivot axis outside and above the window sash when the window is arranged as a roof window in a building.

The window sash is connected to the window frame in such a way that a distance between the instantaneous pole of the window sash and a bearing surface of the window sash on the window frame decreases during an opening movement. This ensures that the open window sash is not far from the window frame, so that the window is visually appealing even when open.

Preferably, an instantaneous pole distance of the instantaneous pole of the window sash from a contact surface of the window sash on the window frame at the beginning is one

Opening movement more than 70 mm and at the end of an opening movement less than 20 mm. As a result, a favorable opening movement is achieved in which, on the one hand, the window sash does not collide with the window frame and, on the other hand, the opened window sash is directly adjacent to an upper transverse beam of the window frame. The instantaneous pole spacing thus corresponds to a geometric sum of a longitudinal direction spacing of the instantaneous pole in the longitudinal direction and an opening direction spacing of the instantaneous pole in an opening direction.

An opening movement as described above can be structurally implemented in a wide variety of ways. Advantageous kinematics for collision-free opening of the window is achieved in a simple manner, especially in the case of windows that are flush with a building, if the window sash is connected to the window frame via a joint, which joint has a first link connected to the window sash so that it can rotate about a first axis, a has a second link connected to the window sash so that it can rotate about a second axis, a third link connected to the window frame so that it can rotate about a third axis, and a fourth link connected to the window frame about a fourth axis, the third link being connected to the first link about a fifth axis and rotatably connected to the second link about a sixth axis and the fourth link rotatably connected to the second link about a seventh axis.

It is favorable if the first axis, the second axis, the third axis, the fourth axis, the fifth axis, the sixth axis and the seventh axis are approximately parallel. As a result, the window can be opened with minimal mechanical stress. As a rule, a first plane, in which the first axis and the second axis are located, is approximately parallel to a window pane of the window casement. A connection between the window sash and the joint can be made, for example, via a sash contact surface. A second plane, in which the second and the third axis lie, is generally at an angle of about 60° to 85° to the first plane when the window is closed. A length of the first link corresponds approximately to a distance between the second axis and the sixth axis. Furthermore, a distance between the sixth axis and the third axis preferably corresponds approximately to a distance between the second axis and the sixth axis.

In order to ensure a robust seal, a silicone sealing frame is advantageously provided.

It has proven itself that a glass pane, in particular a stepped glass pane, is bonded to the window sash in a non-positive manner. This ensures a stable connection even with a large and heavy window pane or a large window area.

A window according to the invention can be designed as a single window. It goes without saying that a window according to the invention can also be designed with several window sashes which are coupled, for example. Thus, casements can be arranged on a window at the top, bottom, left and/or right. In addition, the window can also have a combination of fixed glazing and one or more window sashes. As a result, the most diverse possible uses of a window according to the invention are given.

It is advantageous if a window according to the invention is used in a building. As a result, a lighter, attractive interior can be achieved in a simple manner, for example in the case of attic conversions.

A window according to the invention is usually designed as a skylight, in particular with an inclination of 30° to 75°, with a pivot axis about which the window sash can be pivoted relative to the window frame being arranged at an upper end of the window frame. An angle between a longitudinal bar of the window frame and an imaginary horizontal line is understood here as an inclination.

When the window is open, the window sash is generally aligned horizontally, so that with a suitably large roof area window, the window sash may open at an angle of 75° or more relative to the longitudinal beams. Due to the usually slender design of the linear chain, a visually appealing appearance is nevertheless given, so that the open window sash acts as a visually appealing roofing over a roof terrace.

A safety device, which is usually formed by a sensor for detecting a person in a movement area of the window sash and a controller acting on the drive, reliably prevents the window sash from being closed if there is a Person is located, so that there is no risk of injuring people under the window sash when the window sash moves.

• Fig. 1 bis 5 verschiedene Ansichten eines erfindungsgemäßen Fensters;
• Fig. 6 ein Detail eines erfindungsgemäßen Fensters;
• Fig. 7 einen Schnitt durch ein erfindungsgemäßes Fenster.

Further advantages, features and effects of the invention result from the exemplary embodiment presented below. The drawings to which reference is made show:

• Figures 1 to 5 different views of a window according to the invention;
• 6 a detail of a window according to the invention;
• 7 a section through a window according to the invention.

Figures 1 to 6 show different views of a window 1 according to the invention with a window frame 2 and a window sash 3 with a window pane 15, which in the open state as in FIG 3 shown is aligned approximately horizontally. As can be seen, the window frame 2 has two approximately horizontally aligned transverse bars 6a, 6b and two longitudinal bars 5 which are arranged perpendicularly to these transverse bars 6a, 6b and which connect the transverse bars 6a, 6b. The window sash 3 is pivotably connected to the window frame 2 about a pivot axis. To open and close the window sash 3 relative to the window frame 2, linear chains 4 are arranged in the longitudinal bars 5 of the window frame 2, which can be wound up in the longitudinal bars 5 and driven by an electric motor 7, for example by means of a pinion or a gear wheel.

The push chains 4 are flexible from a stretched position in which the push chains 4 are aligned along a straight line in a direction in which they are wound up when the window 1 is closed. To open the window 1, the push chains 4 are unwound via deflectors 8 arranged in the longitudinal beams 5, as a result of which the window sash 3 is opened in relation to the window frame 2.

At the deflections 8, the push chains 4 are loaded by a spring 19 in an area between the window frame 2 and the window sash 3 with a moment around the deflection in a spring load direction 21 and thus against a flexible direction in which the push chains 4 are flexible. This stiffens the rigid chains 4 so that the window sash 3 can be reliably opened and held by the rigid chains 4 .

When the rigid chains 4 are spooled in, the rigid chains 4 are kinked at the deflections 8 by means of a guide in the flexible direction, so that they can be spooled in easily. Furthermore, the spring 19 ensures that the alignment of the linear chains 4 is adjusted in a region between the window frame 2 and the window sash 3 at different opening angles of the window sash 3 . At the beginning of an opening movement, the push chains 4 are aligned approximately perpendicular to the longitudinal beam 5 and the orientation of the push chains 4 changes with an increasing opening angle of the window sash 3. The deflectors 8 and the springs 19 thus ensure reliable guidance of the push chains 4 during the opening movement .

A distance 9 of the deflections 8 from a lower transverse beam 6b is approximately 30% to 50% of a length 10 of the longitudinal beam 5 in the exemplary embodiment.

The electric motors 7 designed as servomotors are each connected to the rigid chains 4 via planetary gears, so that the electric motors 7 can be configured very slenderly, as shown, and can be arranged on the lower transverse beam 6b of the frame so that they are invisible from the interior. In order to keep the window sash 3 in an open state, the electric motors 7 are each connected to brakes which are only released when the electric motor 7 is active, ie when the window sash 3 is moved relative to the window frame 2 . When the window 1 is installed, the electric motors 7 are usually connected to a power supply system. Furthermore, an uninterruptible power supply can be provided, so that operation of the window 1 is guaranteed even if the power grid fails. For a complete failure of an electrical power supply, a resistor with the Electric motors 7 be connected so that an open window 1 can also be closed in a controlled manner in this case. A controlled movement is achieved in that the electric motors 7 are operated in generator mode and the electrical energy generated is converted into thermal energy in the resistance.

For optical reasons, roof windows are often required to be flush with the roof 16 or a facade. The window sash 3 must therefore not protrude beyond the window frame 2 in such windows 1 . At the same time, roof windows often have a strong inclination α of, for example, up to 75° to a horizontal line 18 and corresponding roof windows are in many cases large and therefore correspondingly heavy, so that special requirements are placed on a mechanism for opening these windows 1.

In 4 a joint 17 can be seen in detail, with which the window frame 2 and window sash 3 are connected in such a way that a correspondingly heavy window sash 3 can be opened without collision, even if the window 1 is flush with a facade of the building. The joint 17 has a first link 22 connected to the window sash 3 so that it can rotate about a first axis 26, a second link 23 connected to the window sash 3 so that it can rotate about a second axis 27, and a third link connected to the window frame 2 so that it can rotate about a third axis 28 24 and a fourth link 25 connected to the window frame 2 about a fourth axis 29 . The third link 24 is connected to the first link 22 about a fifth axis 30 and to the second link 23 so that it can rotate about a sixth axis 31 , and the fourth link 25 is connected to the second link 23 so that it can rotate about a seventh axis 32 . This achieves an opening movement in which the window 1 is lifted at the start of an opening movement in order to prevent the window sash 3 from colliding with the window frame 2 . A pivot axis or an instantaneous pole 11 of the window sash 3, which is aligned approximately parallel to the transverse bars 6a, 6b, about which the window sash 3 is rotated, is at a distance from the window frame 2 at the beginning of the opening movement and moves during the opening movement along a detent pole path 12 to the window frame 2 down During this opening movement, a load on the linear chains 4 can also be ensured in a simple manner, with which a buckling of the linear chain 4 due to loading is prevented in a simple manner against in the flexible direction of the rigid chain 4 or against the spring load direction 21 .

As shown, the first axis 26, the second axis 27, the third axis 28, the fourth axis 29, the fifth axis 30, the sixth axis 31 and the seventh axis 32 are approximately parallel. Furthermore, the axes 26, 27, 28, 29, 30, 31, 32 are approximately parallel to the upper transverse beam 6a.

7 shows a section through a window 1 according to the invention perpendicular to the upper longitudinal beam 5 or to the pivot axis. The pivot axis about which the window sash 3 is pivoted during an opening movement appears in 7 therefore as a point and is shown as the instantaneous center 11. In addition to the upper transverse bar 6a and the window sash 3, a detent pole path 12 is also shown in FIG. 10, which corresponds to a path of the instantaneous pole 11 during an opening movement.

As can be seen, at the start of an opening movement in an opening direction 20 the instantaneous pole 11 is spaced apart from the window sash 3 by a distance 14 in the opening direction. Furthermore, at the start of the opening movement, the instantaneous pole 11 is also spaced apart in a longitudinal direction 33 from the window sash 3 by a distance 13 in the longitudinal direction. The distance 14 of the instantaneous pole 11 from a contact surface 34 of the window sash 3 with the window frame 2 is reduced during an opening movement, so that when the window sash 3 is open, the instantaneous pole 11 is almost in contact with the contact surface 34 on which the window sash 3 is in contact with the window 1 closed the window frame 2 is. This ensures that the window sash 3 is raised at the start of the opening movement and only then pivoted. This ensures that a window 1 that is flush with a facade can also be opened without collision.

With a window 1 according to the invention, even large skylights with dimensions of, for example, two by three meters and a weight of more than 100 kg can be designed in such a way that they can be opened easily and are also visually appealing when closed, with no internal structures such as cylinders Prior art windows 1 are visible.

The window sash 3, which can usually be opened up to a horizontal line 18, is then as in 3 visible given a roofing of an area under the casement 3, so that this area can be used as a covered roof terrace. A safety device nevertheless reliably avoids the risk of injury to people under the open window sash 3 . Even in the open state, a visually appealing appearance of the window 1 is achieved by the generally slender and laterally positioned push chains 4 .

A window 1 according to the invention is therefore particularly suitable for use in high-quality attic apartments with steeply sloping roof surfaces in order to achieve bright, visually appealing interiors.

Claims (13)

1. Window (1) with a window frame (2) and window sash (3) that is swivel-connected to the window frame (2), wherein a push chain (4) connected to the window frame (2) and the window sash (3) is provided, via which the window sash (3) can be moved relative to the window frame (2), characterized in that the window sash (3) is connected to the window frame (2) via a joint (17), which joint (17) comprises a first guide (22) connected to the window sash (3) being rotatable around a first axis (26), a second guide (23) connected to the window sash (3), being rotatable around a second axis (27), a third guide (24) connected to the window frame (2), being rotatable around a third axis (28), as well as a fourth guide (25) connected to the window frame (2), being rotatable around a fourth axis (29), wherein the third guide (24) is connected to the first guide (22) being rotatable around a fifth axis (30) and is connected to the second guide (23) being rotatable around a sixth axis (31), and the fourth guide (25) is connected to the second guide (23) being rotatable around a seventh axis (32) in such a way that a instantaneous centre of rotation (11) of the wind sash (3) is spaced away from the window frame (2) at the beginning of an opening movement in an opening direction (20) and spaced away from the window sash (3) in a longitudinal direction (33) of the window frame (2), and a distance (14) of the instantaneous centre of rotation (11) of the window sash (3) from a contact surface (13) of the window sash (3) on the window frame (2) reduces during an opening movement.
2. Window (1) according to Claim 1, characterized in that the push chain (4) is connected to a longitudinal strut (5) of the window frame (2).
3. Window (1) according to Claim 1 or 2, characterized in that the push chain (4) in a longitudinal strut (5) of the window frame (2) can be reeled up, preferably on a plane lying perpendicular to a swivel axis, around which the window sash (3) can swivel.
4. Window (1) according to any one of the Claims 1 to 3, characterized in that two push chains (4) are provided on opposite longitudinal struts (5) of the window frame (2) that engage on opposite sides of the window sash (3) .
5. Window (1) according to any one of the Claims 1 to 4, characterized in that a drive connected to the push chain (4) is provided, via which the window sash (3) can be opened and closed by means of the push chain (4) .
6. Window (1) according to Claim 5, characterized in that the drive is arranged on an end of the longitudinal strut (5) lying opposite to a swivel axis.
7. Window (1) according to Claim 6, characterized in that the electric motor (7) is connected to a resistor in such a way that, in the event of a failure of a power supply, the window (1) can be closed in a controlled manner by means of the electric motor (7) and, in the process, an electrical energy generated in the electric motor (7) can be converted into heat within the resistor.
8. Window (1) according to any one of the Claims 5 to 7, characterized in that a sensor acting on the drive is provided, via which it is detectable whether an object, in particular, a person, is in an area of the window (1), in particular, in an area through which the window sash (3) is moved in a closing movement from an open position, wherein, preferably, a controller connected to the sensor and the drive is provided, via which a movement of the window sash (3) can be restricted or blocked if, by means of the sensor, an object is detected in an area through which the window sash is moved during a closing movement.
9. Window (1) according to any one of the Claims 1 to 8, characterized in that the push chain (4) in the window frame (2) is guided within a guide with a deflection (8), wherein, preferably, the deflection (8) is springloaded in such a way that the push chain (4) is loaded on a free length (10) between the window frame (2) and the window sash (3) towards one direction, in which the push chain (4) is pliable.
10. Window (1) according to any one of the Claims 1 to 9, characterized in that the first axis (26), the second axis (27), the third axis (28), the fourth axis (29), the fifth axis (30), the sixth axis (31) and the seventh axis (32) are approximately parallel.
11. Window (1) according to any one of the Claims 1 to 10, characterized in that a circumferential silicone sealing frame is provided.
12. Building with a window (1), characterized in that the window (1) is formed according to any one of the Claims 1 to 11.
13. Building according to Claim 12, characterized in that the window (1) is formed as a skylight, in particular, with an inclination (α) of 30° to 75°, wherein a swivel axis, around which the window sash (3) can be swivelled relative to the window frame (2) is arranged at an upper end of the window frame (2).

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