DE20119251U1 - French window, has rail with T shaped cross section covering gap between sashes - Google Patents

Abstract

The security rail in between the two sashes (3, 4) has an essentially T-shaped cross-section, the horizontal head of the T extending parallel to the window surface when the window is closed, so that it covers the gap between the sashes on the outside. The vertical arm of the T is supported against the sash (3) to which the security rail is attached. Independent claims are also included for (a) a French window having a reduction gear acting as a mechanical coupling between the actuator on the wing frame (7, 8) and the transmission device, and (b) a French window having an blocking part provided separately from the actuator in the wing frame, the locking part being mechanically coupled to the transmission device and used to lock it.

Description

Casement windows

The invention relates to a casement window with the features of the preamble of claim 1 or claim 16 and claim 19.

Casement windows are available in single or multiple-leaf versions, known as fixed, turn, tilt or turn-tilt windows. A casement window basically has an outer frame, one or more window sashes with a sash frame enclosing a window element, and a locking mechanism. The window sash(s) can each be pivoted around a pivot axis.

In the case of multi-leaf casement windows, at least one side of the casement frame is not enclosed by the outer frame or does not come into contact with it when closed. For these sides, the outer frame cannot therefore serve as a sealing stop or as a holder for locking or locking counter-elements.

Known multi-leaf casement windows therefore have a vertical post that forms a stop for the aforementioned legs and, if necessary, also accommodates locking or locking counter-elements. The post then lies exactly in the dividing line between two window leaves that are adjacent to one another when closed.

In the case of multi-leaf casement windows with a faceplate, such a post is superfluous. The faceplate is arranged along the closing edge of a window sash in such a way that it forms a stop for the adjacent window sash, possibly sealing it, and provides a visual closure to the outside. The faceplate is usually designed as a strip whose length essentially corresponds to the height of the window sash that supports the faceplate. The stop for the adjacent, second window sash is formed by the faceplate slightly "overhanging" the window sash that supports the faceplate perpendicular to its direction of extension, thus forming a stop surface. In the design of the casement window with a faceplate, it is necessary that the window sash that supports the faceplate can be locked to the outer frame in order to be able to absorb the impact forces that occur.

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When designing the single or multi-leaf casement windows in question as burglar-resistant windows, the basic requirement is that they must be able to absorb high forces acting on the casement frame(s) and also offer effective protection against attempted break-ins using burglary tools such as crowbars or the like.

In multi-leaf casement windows, the dividing line between two adjacent window sashes represents a weak point. Along this

A gap is created between the two window sashes at the dividing line. If sufficient force is applied, particularly when a crowbar is violently driven into the gap, this gap can be broken open with relatively little effort, as the forces acting on it are only diverted at the top and bottom edges of the window sash. The crowbar can first be pressed between any existing faceplate and the window sash, in order to then continue to break open the gap at the dividing line.

A known casement window, from which the invention is based, shows a possibility of reducing this burglary risk. The two- or three-wing casement window has a faceplate that is reinforced along its length with a flat iron - security rail. This reinforcement, which is aligned parallel to the window surface and rests on the window sash that supports the faceplate, prevents a crowbar from being driven under the faceplate. In order to be able to optimally divert the forces that occur during such a break-in attempt into the outer frame, the window sash is locked to the outer frame by several locking elements arranged all around the sash frame, which engage in corresponding locking counter elements in the outer frame. Depending on the desired burglary protection, the locking elements and the corresponding locking counter elements have a different load-bearing capacity. This means that they allow force loads of different levels, especially in the event of a break-in.

Despite the measures mentioned above, there are still two possible ways to force open the gap in the casement window. Firstly, it is conceivable to cut the flat iron on the side where it is above the faceplate.

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supporting window sash, using a crowbar. This allows the flat iron to be brought into a position where it is less of an obstacle to further breaking open the gap. Another option is to use a chisel in such a way that it is driven diagonally through the gap past the flat iron. This approach could also be used to break open the gap. All such "attacks" come from the side of the faceplate that has the aforementioned overhang (attack edge).

&iacgr;&ogr; A further increase in burglary resistance can be achieved by strengthening the security rail on the one hand and by increasing the load-bearing capacity or the number of locking elements on the other. However, these measures impair the appearance of the window on the one hand and the ease of use - the operating forces generally increase with the number of locking elements - on the other.

The invention is based on the problem of designing and further developing the known, previously explained, casement window in such a way that maximum burglary resistance is ensured without impairing the window appearance and ease of use.

According to the invention, this problem is solved firstly by the features of the characterising part of claim 1.

First of all, it is important that the safety rail is not designed as a flat iron, but has a T-shaped cross-section. The safety rail therefore has a first horizontal strip-shaped component and a second, vertical strip-shaped component connected to the first component. The terms "horizontal component" and "vertical component" are to be understood here as definitions in relation to the shape of the T-shaped cross-section. A T-shaped cross-section basically has two components that are perpendicular to one another, one of which is arranged horizontally and the other vertically in the sense of the shape of the letter "T". "Vertical" and "horizontal" are therefore not to be understood as absolute, but as relative directional specifications.

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The safety rail is arranged on a window sash in such a way that, when closed, the horizontal component is aligned parallel to the window surface and covers the gap remaining at the dividing line between two window sashes from the outside, and the vertical component rests in the gap on the window sash carrying the safety rail.

This means that it is no longer possible to "weaken" the safety rail from the attack edge. When driving a crowbar between the horizontal part of the safety rail and the window sash, the crowbar hits the vertical part of the safety rail directly. It is therefore no longer possible to lever the safety rail under. It is also no longer possible to drive a chisel diagonally past the horizontal part of the safety rail through the gap, as this would also be stopped by the vertical part of the safety rail.

A further advantage is that the stability of the casement window is significantly increased, particularly against forces perpendicular to the window surface. The T-shaped structure of the safety rail means that the rigidity of the window in the area of the dividing line between two adjacent window sashes is significantly increased in the direction mentioned.

A further increase in the burglary resistance of the casement window according to the invention can be achieved by making the security rail asymmetrical in its cross-section. This means that the horizontal part of the security rail is as short as possible on the side that covers the gap, and as long as possible on the side that rests on the window sash that supports the security rail. This ensures that the security rail is optimally attached on the one hand, and that the possible leverage for lifting the security rail is minimal on the other.

The measures mentioned to protect the dividing line against violent intrusion only provide the desired burglary protection if the window

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Corresponding locking elements are provided in the outer frame for locking, which engage with locking counter elements in the outer frame.

A further teaching of the invention, which has independent significance, solves the above-mentioned problem with the features of claim 16.

According to this further teaching of the invention, which relates to single or multiple-leaf casement windows, at least one actuating element is provided, to which a transmission device is assigned. The transmission device is mechanically coupled to the actuating element on the one hand and to one or more locking elements on the other. It is essential that the mechanical coupling between the actuating element and the transmission device has a reduction gear, preferably a multi-stage reduction gear. The particularly advantageous effect of the reduction gear is that the actuating forces are considerably reduced. This is particularly advantageous for locking elements with high load-bearing capacities, which are used in burglar-resistant windows and which normally lead to high resulting actuating forces.

Furthermore, the present invention relates to a single or multi-leaf casement window according to claim 19, which has a further burglar-resistant measure. According to this teaching of the invention, at least one actuating element with a transmission device and locking element or locking elements, possibly also with a reduction gear, is provided.

According to the proposal, at least one blocking element is provided which is separate from the actuating element and which enables the transmission device to be blocked. In addition to the high level of security, locking with such a blocking element offers the advantage, especially in the case of old windows, that the desired burglary protection can be achieved even while retaining the original actuating knob. In these cases, it is particularly advantageous that the blocking element according to the invention can be provided at any point in the sash frame near the transmission device.

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There are, of course, a multitude of possibilities for developing and further developing the teachings of the invention. Reference may be made to the subclaims for this purpose.

In the following, the invention is explained in more detail with reference to a drawing which merely represents an exemplary embodiment. In the drawing,

Fig. 1 shows a schematic representation of the structure of an inventive

casement window,

Fig. 2 the casement window according to the invention from Fig. 1 in section H-II,

Fig. 3 shows the casement window according to the invention from Fig. 1 in section &Pgr;&Igr;

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Fig. 4 the casement window according to the invention from Fig. 1 in section IV-

IV,

Fig. 5 the casement window according to the invention from Fig. 1 in section III-

III, here with a window element made of composite material,

Fig. 6 a partial view of the structure of the locking of the

casement window according to the invention from Fig. 1.

Fig. 1 shows a casement window 1 with an outer frame 2 and two window sashes 3,4. The window sashes 3,4 can each be pivoted about a pivot axis 5,6. Both window sashes 3,4 each have a sash frame 7,8. The sash frames 7,8 enclose window elements 9,10, which are preferably designed as glass panes.

When the casement window 1 is closed, the window sashes 3, 4 form a closed window surface. This means that the individual window sashes fit together in a form-fitting manner along a dividing line 11 in such a way that the window surface is closed - without the formation of gaps.

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It should be noted that in addition to the essentially conventional design of a casement window shown in Fig. 1, the teaching according to the invention also includes casement windows which have non-rectangular window sashes and in which the dividing line 11 or the dividing lines are not straight but run largely arbitrarily.

Fig. 2 shows a safety rail 12 arranged essentially along the dividing line 11. The safety rail is arranged in Fig. 2 on the left window sash, i.e. on the window sash 3, and in the closed state covers the gap 13 remaining at the dividing line 11 between the two window sashes 3,4.

According to the teaching of the invention, the safety rail 12 is essentially T-shaped in cross section and thus has a first horizontal strip-shaped component 14 and a second vertical strip-shaped component 15. As can be seen in Fig. 2, the horizontal component 14 is arranged essentially parallel to the window surface, the vertical component 15 is arranged in the gap 13 and rests on the window sash 3 carrying the safety rail 12 - on its flat side.

An attempt to place a crowbar on the "vulnerable" edge of the safety rail 12 - attack edge 16 - and to drive it between the horizontal component 14 of the safety rail 12 and the sash frame 7,8 results in the crowbar hitting the vertical component 15 of the safety rail 12. It is therefore not possible to lever out the safety rail 12. Driving a chisel diagonally through the gap 13, past the safety rail 12 on the right in Fig. 2, is also not conceivable.

To ensure that the safety rail 12 does not itself form a lever when a crowbar is driven into the attack edge 16, the T-shaped cross section of the safety rail 12 is designed to be asymmetrical in such a way that, when closed, the overlap of the window sash 3 carrying the safety rail 12 by the safety rail 12 is significantly higher than the overlap of the corresponding window sash 4 (factor of approx. 4 to 5). The overlap of the window sash 4 by the safety rail 12 is therefore designed in such a way that the gap 13 is just barely protected.

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Due to the particularly high forces acting on the horizontal strip-shaped component 14 in the event of a break-in, according to the preferred teaching, the horizontal strip-shaped component 14 of the security rail 12 is to be designed to be stronger than the vertical strip-shaped component 15. An exemplary design provides for a strip thickness of approx. 5 mm for the horizontal component and approx. 2.5 mm for the vertical component.

It is particularly advantageous if the horizontal component 14 and/or the vertical component 15 of the safety rail 12 is attached to the window sash 3, preferably by means of a screw connection. Any other fastening means can also be used, provided they provide the necessary holding forces. Other examples here are riveted or, if necessary, adhesive connections.

A particularly effective burglary deterrent can be achieved if the security rail 12 is made of high-strength material, preferably steel.

As already described in the introduction to the description, conventional casement windows without posts have a faceplate. According to a special embodiment of the teaching of the invention, a corresponding faceplate 17 is provided, which is placed on the safety rail 12. The faceplate 17 here only takes on the function of a visual closure and, if necessary, an additional seal.

According to a preferred embodiment of the proposed teaching, measures are provided for locking the two window sashes 3, 4 to one another and for locking the window sashes 3, 4 to the outer frame 2. Depending on the application, however, it may also be advantageous not to lock the two window sashes 3, 4 to one another.

Fig. 2 shows a corresponding locking of the two window sashes 3, 4 with one another by means of locking elements 18 in the sash frame 8, which engage in locking counter-elements 19 in the corresponding sash frame 7. The locking elements 18 are designed as movable bolts in the present case, but the state of the art provides a wealth of other possible designs.

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A locking mechanism between window sash 3, 4 and outer frame 2 is shown in Fig. 3 and Fig. 4. Here, locking elements 20, 21 are provided in the sash frame 7, 8, which engage in locking counter-elements 22, 23 in the outer frame 2. This locking mechanism is provided in Fig. 3 on the vertically running legs of the outer frame 2, and in Fig. 4 on the horizontally running legs of the outer frame 2.

All of the above-mentioned locking concepts can also be reversed in their mode of operation, so that locking elements 18, 20, 21 and locking counter-elements 19, 22, 23 are replaced by the corresponding locking counter-elements and locking elements.

The outer frame 2 and/or the sash frames 7, 8 can be made of any material as long as it has sufficient strength. Wood, plastic, steel or composite material are particularly suitable for this purpose.

A particularly preferred embodiment provides for the outer frame 2 and/or the sash frames 7,8 to be made of wood and/or composite material, wherein the material has integrated metal inserts, in particular steel bolts, etc. This ensures a particularly high level of burglary resistance while maintaining a wood-like appearance.

In order to prevent the burglary protection achieved by the security rail 12 from being reduced by the window pane 9,10 or the glazing bead 24 enclosing the window pane 9,10 being pried open, the preferred teaching provides for arranging a steel angle 25 along the joint between the glazing bead 24 and the window pane 9,10. The steel angle 25 is arranged with one leg between the glazing bead 24 and the casement 7,8 and with the other leg aligned outwards parallel to the window surface, overlapping the glazing bead 24. This ensures that it is no longer possible to drive a crowbar between the casement 7,8 and the glazing bead 24 from the outside. In order to further strengthen the steel angle 25, the preferred teaching provides for the steel angle 25 to be welded at its edge to reinforce the structure.

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As a rule, the window elements 9, 10 are designed as glass panes. For special safety and protection functions, these glass panes are designed with multiple layers. If there are special safety requirements, it is also intended to design the glass panes with high strength and high glass thickness, preferably from bulletproof glass.

In certain areas of application, the inventive hinged sash security window 1 is not used or is only used partially as a viewing window, so that according to a further preferred teaching, at least one of the window elements 9, 10 enclosed by the sash frames 7, 8 is made of a composite material. Fig. 5 shows such a composite material, which is made up of two outer layers, an enclosed 15 mm layer of rigid foam and a 2 mm steel sheet. This sandwich construction offers particularly high strength, as is already known from other technical areas.

A further, independent teaching of the invention relates to the locking of a single or multiple-leaf casement window. To actuate the locking elements 18, 20, 21 that may be present, i.e. to lock the casement window, at least one actuating element 26, preferably as a knob or as a window lever, is provided here, which is mechanically coupled to a locking element 18, 20, 21 or several locking elements 18, 20, 21 via a transmission device 27. Fig. 6 shows this schematically. This mechanical coupling is designed in such a way that the engagement of the locking elements 18, 20, 21 in locking counter-elements 19, 22, 23 can be controlled by actuating the actuating element 26.

According to the preferred teaching, the transmission device 27 can be designed as a coupling rod which is displaced in its longitudinal direction via an eccentric or a pinion on the actuating element 26 and is rigidly connected to a locking element 18, 20, 21 or several locking elements 18, 20, 21.

It may also be advantageous to provide several, preferably two actuating elements 26 on a window sash 3, 4, each of which is assigned to different locking elements 18, 20, 21. This is particularly the case if the actuating elements 26 are designed to be lockable and, in the case of a

With several such lockable actuating elements 26, the burglary protection is significantly increased by increasing the effort required for a break-in.

According to this further teaching of the invention, it is provided that the mechanical coupling between the actuating element 26 and the transmission device 27 has a reduction gear 28 so that the actuating forces are reduced. It can also be provided that the mechanical coupling is formed exclusively by the reduction gear 27. With the reduced actuating forces, a motor-operated actuating element 26 could then be implemented with comparatively little effort.

In a particularly preferred embodiment, the reduction gear 28 is designed in several stages, so that a particularly low actuating force can be achieved.

With regard to a simple and cost-effective implementation, it is advantageous to design the reduction gear 28 as an independent gear component, the input of which is mechanically coupled to the actuating element 26 and the output of which is mechanically coupled to the transmission device 27. It is then conceivable to use a gear known from the prior art as a purchased part for the reduction gear 28.

To further increase the burglary resistance of the casement window, according to a further teaching of the invention, an actuatable blocking element 29 is provided which is coupled to the transmission device 27 in such a way that the transmission device 27 can be blocked by this blocking element 29. The blocking element 29 preferably has a cylinder lock 30 or the like for actuation. The blocking element 29 is particularly easy to implement if the transmission device 27, as described above, is designed as a coupling rod and this coupling rod has a profile 31, preferably a pinion, recesses or the like, into which the blocking element 29 can engage for blocking, preferably by means of a bolt 32 or the like.

Finally, it should be noted that the casement window according to the invention can also be designed as a component of a window system,

which includes skylights, additional side windows, etc. The proposed solutions can also be applied to doors, gates, etc.

Claims (21)

1. A casement window with an outer frame ( 2 ) and with at least two window sashes ( 3 , 4 ), the window sashes ( 3 , 4 ) being pivotable about a respective pivot axis ( 5 , 6 ), the window sashes ( 3 , 4 ) each having a sash frame ( 7 , 8 ), the sash frames ( 7 , 8 ) each enclosing a window element ( 9 , 10 ),
wherein in the closed state of the window ( 1 ) the window sashes ( 3 , 4 ) form a closed window surface and at least partially engage with one another in a form-fitting manner along a dividing line ( 11 ),
wherein a safety rail ( 12 ) is arranged essentially along the dividing line ( 11 ) between two window sashes ( 3 , 4 ) on one of the two window sashes ( 3 ), wherein- the safety rail ( 12 ) closes the gap ( 13 ) between the two window sashes ( 3 , 4 ) remaining at the dividing line ( 11 ) in the closed state to the outside in such a way that breaking open of the gap ( 13 ) by external force, in particular by forcibly driving a crowbar into the gap ( 13 ),
characterized ,
that the safety rail ( 12 ) is essentially T-shaped in cross-section and that the safety rail ( 12 ) therefore has a first horizontal strip-shaped component ( 14 ) and a second vertical strip-shaped component ( 15 ) and that in the closed state the horizontal component ( 14 ) is aligned parallel to the window surface and covers the gap ( 13 ) remaining at the dividing line ( 11 ) between two window sashes ( 3 , 4 ) towards the outside in the closed state and the vertical component ( 15 ) rests in the gap ( 13 ) on the window sash ( 3 ) carrying the safety rail ( 12 ). 2. A casement window according to claim 1, characterized in that the T-shaped cross section of the safety rail ( 12 ) is designed to be asymmetrical in such a way that, in the closed state, the overlap of the window sash ( 3 ) carrying the safety rail ( 12 ) by the safety rail ( 12 ) is substantially, preferably four to five times, higher than the overlap of the corresponding window sash ( 4 ). 3. A casement window according to claim 1 or 2, characterized in that the horizontal strip-shaped component ( 14 ) of the securing rail ( 12 ) is designed to be approximately twice as thick as the vertical strip-shaped component ( 15 ), in particular that the horizontal component ( 14 ) is approximately 5 mm and the vertical component ( 15 ) is approximately 2.5 mm thick. 4. A casement window according to one of the preceding claims, characterized in that the horizontal component ( 14 ) and/or the vertical component ( 15 ) are fastened to the window sash ( 3 ), in particular by a screw connection. 5. A casement window according to one of the preceding claims, characterized in that the securing rail ( 12 ) consists of high-strength material, preferably steel. 6. A casement window according to one of the preceding claims, characterized in that a faceplate ( 17 ) made of wood and/or plastic is provided on the dividing line ( 11 ) between two window sashes ( 3 , 4 ) on one of the two window sashes ( 3 ), which covers the gap ( 13 ) remaining on the dividing line ( 11 ) between two window sashes ( 3 , 4 ) towards the outside in the closed state, and that the securing rail ( 12 ) is arranged between the window sash ( 3 ) and the faceplate ( 17 ), preferably within the faceplate ( 17 ). 7. A casement window according to one of the preceding claims, characterized in that locking elements ( 18 ) are provided in the casement frame ( 7 , 8 ), which engage in locking counter-elements ( 19 ) in the corresponding casement frame ( 7 , 8 ). 8. A casement window according to one of the preceding claims, characterized in that locking elements ( 20 , 21 ) are provided in the casement frame ( 7 , 8 ) and/or in the outer frame ( 2 ), which engage in locking counter-elements ( 22 , 23 ) in the outer frame ( 2 ) and/or in the casement frame ( 7 , 8 ). 9. Casement window according to one of the preceding claims, characterized in that the outer frame ( 2 ) and/or the casement frames ( 7 , 8 ) consist of wood, plastic, steel or composite material. 10. A casement window according to one of the preceding claims, characterized in that the outer frame ( 2 ) and/or the casement frames ( 7 , 8 ) consist of wood and/or composite material, each with integrated metal inserts, in particular with integrated steel bolts. 11. A casement window according to one of the preceding claims, characterized in that the window element ( 9 , 10 ) is enclosed by a glazing bead ( 24 ), that the joint between the glazing bead ( 24 ) and the casement frame ( 7 , 8 ) is protected against the glazing bead ( 24 ) and/or the window element ( 9 , 10 ) being levered out from the outside by a steel angle ( 25 ) running over the length of the glazing bead ( 24 ), that the first leg of the steel angle ( 25 ) is arranged between the glazing bead ( 24 ) and the casement frame ( 7 , 8 ) and the second leg of the steel angle ( 25 ) is aligned outwards parallel to the window surface in overlap with the glazing bead, and that the steel angle ( 25 ) is preferably welded in its linear edge for reinforcement. 12. A casement window according to one of the preceding claims, characterized in that the window elements ( 9 , 10 ) enclosed by the casement frames ( 7 , 8 ) are designed as glass panes. 13. A casement window according to one of the preceding claims, characterized in that at least one of the window elements ( 9 , 10 ) enclosed by the casement frames ( 7 , 8 ) is designed in multiple layers for safety and protection functions. 14. A casement window according to one of the preceding claims, characterized in that at least one of the window elements ( 9 , 10 ) enclosed by the casement frames ( 7 , 8 ) is designed for safety and protection functions with high strength and high glass thickness, preferably from bulletproof glass. 15. A casement window according to one of the preceding claims, characterized in that at least one of the window elements ( 9 , 10 ) enclosed by the casement frames ( 7 , 8 ) is made of a composite material. 16. A casement window with an outer frame ( 2 ) and with one or more casements ( 3 , 4 ), the casement ( 3 , 4 ) being pivotable about a pivot axis ( 5 , 6 ), the casement ( 3 , 4 ) having a casement frame ( 7 , 8 ), the casement frame ( 7 , 8 ) enclosing a window element ( 9 , 10 ), at least one actuating element ( 26 ) being arranged on the casement frame ( 7 , 8 ), at least one transmission device ( 27 ) being associated with the actuating element ( 26 ), the casement frame ( 7 , 8 ) having locking elements ( 18 , 20 , 21 ) which engage in locking counter-elements ( 19 , 22 , 23 ) in the corresponding casement frame ( 7 , 8). , 8 ) and/or in the outer frame ( 2 ), wherein a mechanical coupling of the transmission device ( 27 ) with the actuating element ( 26 ) on the one hand and with a locking element ( 18 , 20 , 21 ) or with several locking elements ( 18 , 20 , 21 ) on the other hand is provided, wherein the engagement of the locking elements ( 18 , 20 , 21 ) in the corresponding locking counter-elements ( 19 , 22 , 23 ) can be controlled via the transmission device ( 27 ) by actuating the actuating element ( 26 ),
in particular a casement window according to one of claims 1 to 15,
characterized,
that the mechanical coupling between the actuating element ( 26 ) and the transmission device ( 27 ) has a reduction gear ( 28 ). 17. A casement window according to claim 16, characterized in that the reduction gear ( 28 ) is designed as a multi-stage gear. 18. A casement window according to claim 16 or 17, characterized in that the reduction gear ( 28 ) is designed as an independent gear component, the input of which is mechanically coupled to the actuating element ( 26 ) and the output of which is mechanically coupled to the transmission device ( 27 ). 19. A casement window with an outer frame ( 2 ) and with one or more casements ( 3 , 4 ), the casement ( 3 , 4 ) being pivotable about a pivot axis ( 5 , 6 ), the casement ( 3 , 4 ) having a casement frame ( 7 , 8 ), the casement frame ( 7 , 8 ) enclosing a window element ( 9 , 10 ), at least one actuating element ( 26 ) being arranged on the casement frame ( 7 , 8 ), at least one transmission device ( 27 ) being associated with the actuating element ( 26 ), the casement frame ( 7 , 8 ) having locking elements ( 18 , 20 , 21 ) which engage in locking counter-elements ( 19 , 22 , 23 ) in the corresponding casement frame ( 7 , 8). , 8 ) and/or in the outer frame ( 2 ), wherein a mechanical coupling of the transmission device ( 27 ) with the actuating element ( 26 ) on the one hand and with a locking element ( 18 , 20 , 21 ) or with several locking elements ( 18 , 20 , 21 ) on the other hand is provided, wherein the engagement of the locking elements ( 18 , 20 , 21 ) in the corresponding locking counter-elements ( 19 , 22 , 23 ) can be controlled via the transmission device ( 27 ) by actuating the actuating element ( 26 ),
in particular a casement window according to one of claims 1 to 15 or 16 to 18,
characterized,
that at least one actuatable blocking element ( 29 ) separate from the actuating element ( 26 ) is provided in the sash frame ( 7 , 8 ), which is mechanically coupled to the transmission device ( 27 ) in such a way that the transmission device ( 27 ) can be blocked. 20. A casement window according to claim 19, characterized in that the blocking element ( 26 ) has a cylinder lock ( 30 ) or the like for actuation. 21. A casement window according to claim 19 or 20, characterized in that the transmission device ( 27 ) is designed as a coupling rod, that the coupling rod has a profile ( 31 ), that the blocking element ( 29 ) has a displaceable bolt ( 32 ) and that when the blocking element ( 29 ) is actuated, the bolt ( 32 ) engages in the profile ( 31 ) of the coupling rod to block the transmission device ( 27 ).