DE20211725U1 - Hardware for burglar protection for a multi-leaf window or door - Google Patents

Abstract

The invention relates to burglar-proof security for a window or door comprising two adjacent lights or leaves (1, 2) in a fixed frame without a central mullion. Said lights or leaves comprise at least on the peripheral rebate surface of the adjacent beams in a stepped profiled groove a push rod fitting (3 and 4) consisting of an overlapping rail (7, 8) and a push rod (5, 6) that can be displaced longitudinally beneath said rail. The locking member (9) that can be displaced along the push rod (6) of the push rod fitting (3) can be positioned in and released from a locking engagement by means of locking engagement elements (10), said elements resting on the overlapping rail (8) of the other push rod fitting (6) and having a blocking device (11) which blocks a displacement of the push rod (6) of the closed fixed light or leaf (2) by the co-operation of a security lock part (12) on the push rod (6) with a locking member (9) on the push rod (5) of the other push rod fitting (3), whereby the security lock part (12) is completely covered by the locking engagement element (10) in the active closed position.

Description

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-1- Burglar-proof fitting for a multi-leaf window or door

The innovation relates to a window or a door with two sashes installed on a fixed frame directly next to each other - without a fixed central post - in which each sash contains, at least on the peripheral rebate surface of the adjacent beams, in a stepped profile groove, an espagnolette fitting consisting of a faceplate and a drive rod guided longitudinally underneath, and in which a locking member or the like which can be moved by the drive rod of the espagnolette fitting can be adjusted into and out of locking engagement with locking engagements which sit on the faceplate of the other espagnolette fitting and have a locking device which blocks adjustment of the drive rod of the overlapping sash by the interaction of a securing part located on this drive rod with a locking member arranged on the drive rod of the other espagnolette fitting.

Windows, doors or similar of this type are already known, as can be seen, for example, from DE 34 46 215 C2.

In this known window or door, which is also referred to as a French casement window or door, a burglar alarm is provided which has at least two wings separated from one another by a vertical frame leg, with an independently operable drive rod lock in each wing, of which at least one is designed as a tilt-turn fitting and the other as a turn fitting, the drive rod of the turn-turn fitting having a lower drive band deflected into a horizontal course with a locking element, and with an actuator coupled to the tilt-turn fitting via a driver coupling, displaceable into the horizontal frame leg of the adjacent wings and provided with a locking part, the locking part of which, in the tilt position of the tilt-turn wing, forms a locking element for the locking element of the window to be secured.

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The locking part of the actuator is locked in place by the stop belonging to the sash and thus prevents the turning sash from opening. The locking part of the actuator is provided with a run-on bevel on the side facing away from the locking surface, which lies in the adjustment path of the stop on the deflected drive belt and ensures that the stop comes into contact with the locking surface of the locking part after passing over the run-on bevel when the turning sash is closed from the open position with the tilt and turn sash tilted. This means that when the active sash is tilted, the turning sash is held in place by the described connection to prevent break-ins. When the tilt and turn sash is closed, however, there is no break-in protection.

Furthermore, DE 850 701 discloses a locking arrangement for double-winged windows that open outwards, in which a known espagnolette lock is arranged on the inside of the cover strip of the window wing that closes first, which has protruding pins at the point of impact that engage in latches on the second window wing and push or pull the latches up or down into the window frame. Since the first window wing is held behind the outer stop strip of the second wing, there is no need for special fastening of the first wing.

In addition, such a fitting is known from the German patent DE 44 30 376 A1. This known fitting is a split door, which is designed with a lower door leaf pivotably attached to a door frame about a substantially vertical axis and with an upper door leaf pivotably attached to the door frame above the lower door leaf about the axis. Both door leaves are provided with a fitting assembly, in particular with a drive rod element, which carries at least one locking element that interacts with a counter-locking element on the door frame side, at least one actuating element provided on the upper and/or lower door leaf for moving the respective

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Drive rod element between at least the following functional positions; common locking position in which both door leaves are locked to the door frame in the closed position; common ready-to-turn position in which both door leaves can be opened together for rotation; individual ready-to-turn position in which one of the two door leaves is locked to the door frame in the closed position and the other door leaf can be opened for rotation; a drive rod coupling device for the drive rod elements of both fitting assemblies, which can be released in the individual ready-to-turn position by opening the other door leaf for rotation, comprising a driver element with a driver opening on one of the two drive rod elements and a driver projection on the other drive rod element which engages in the driver opening and emerges from the driver opening when the other door leaf is opened for rotation in the individual ready-to-turn position, and a door leaf coupling device for both door leaves for pivot coupling in the common ready-to-turn position and decoupling in the individual ready-to-turn position.

A disadvantage of this state of the art is that the drive rod coupling device, consisting of the driving element and the driving projection, is freely arranged, i.e. unprotected, between the two door leaves or in the rebate gap and forms an additional component, which unnecessarily increases the cost of the drive rod fitting.

The purpose of the innovation is to eliminate the inadequacies that arise with the known fittings. The task is therefore to specify a window or door of the type described above, which integrates a security device against burglary in the drive rod fitting of the active leaf and thus also in the passive leaf of double-leaf windows and doors without a central mullion in the frame, without increasing the cost of the fittings.

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According to a first embodiment of the innovation, the safety part is designed as a spring plate and has a T-shaped form in a developed contour. From this embodiment, a one-piece and thus cost-effective safety part can be manufactured by slightly reshaping the T-shaped arms.

In the design variant shown, the T-shaped arms of the security part are angled by 90° as a prefabricated component and, when installed, function as locking elements for the drive rod of the drive rod fitting of the overlapping sash.

For the functional effect of the spring-elastic securing part, it is of particular importance that the securing part consists of two sections, whereby one section lies flush against the faceplate of the drive rod fitting and is connected to it in a force-locking manner and the other section, starting from the open switching position, is spring-loaded and angled so far towards the first section that the second section is in a disengaged position with the drive rod.

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According to another special feature of the innovation, the locking elements of the safety part are pressed down by the locking element in the closed position in a cutout of the drive rod against spring force, so that the drive rod is secured against further displacement and thus locks the entire drive rod fitting. To avoid a clamping effect when the locking elements are pressed down into the drive rod, all edges created during production and as a result of the design are preferably provided with radii.

Another preferred embodiment, but just as effective as the concept described above, is when the securing part is L-shaped and divided into two webs, one web being non-positively connected to the drive rod of the drive rod fitting

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and the other web is arranged in the closed position as a locking member in the U-shaped locking engagement and is held in position in a locking manner by the locking member which is closest to the locking engagement opening.

Due to a cost-effective manufacturing design, it is particularly advantageous if the securing part is designed as a stamped part.

Another feature of the innovation is that the bolt engagement is made from a stamped part due to its simple design, so that the manufacturing costs also have a positive effect on the cost of the drive rod fitting. Furthermore, the material's strength means it meets the requirements to counteract a possible break-in attempt.

Another preferred development provides that the securing part is Z-shaped, wherein in the closed position the vertical web with the end of the insertion slot of the U-shaped locking engagement is held by the locking member in a locking manner against further displacement.

A design that is structurally simple and particularly economical to produce is one in which the security part, due to its Z-shaped design, is connected to the drive rod of the drive rod fitting with a horizontal arm in a force-fitting manner and forms a one-piece design with the locking engagement with the other horizontal arm, i.e. that the security part is designed in one piece with the horizontal arm, for example by repeated forming, or that a corresponding force-fitting or form-fitting connection provides a two-piece design that can be moved together with the drive rod.

It is therefore planned, according to the new regulations, that in the case of a window or a door in a fixed frame, the two leaves installed directly next to each other - without a fixed central post -

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to block the adjustment by means of the interaction of a security part located on one drive rod with a locking element arranged on the other drive rod of the drive rod fitting and, in the event of a possible break-in attempt, to completely cover both the locking mechanism and the switching lock with a locking engagement and thus prevent any intrusion.

Further advantages are evident from the following drawing description.

The drawing shows embodiments of the innovation. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will also expediently consider the features individually and combine them in further meaningful combinations.

Show it:

Fig. 1 shows a schematic representation of a double-leaf window in which the leaves are inserted into the frame without a fixed central post,

Fig. 2 shows, on a larger scale and in a sectional view, a first variant of the innovative area of the drive rod fittings to be installed in the active leaf and passive leaf of the window according to Fig. 1 in the open switching position,

Fig. 3 is a sectional view of the embodiment according to Fig. 2 in closed switching position,

Fig. 4 in a sectional view in a second embodiment of the innovative area of the drive rod fitting to be installed in the active leaf and the passive leaf of the window according to Fig. 1 in the open switching position,

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Fig. 5 the embodiment according to Fig. 4 in closed switching position,

Fig. 6 also shows a sectional view of a third

Example of the innovative area of the drive rod fitting to be installed in the active leaf and the passive leaf of the window according to Fig. 1 in the open switching position,

Fig. 7 is a sectional view of the embodiment of Fig. 6 in the closed switching position.

Fig. 1 of the drawing shows a two-wing window that is designed as a so-called French casement window, in which the first or active casement 1 and the second or passive casement 2 are installed next to each other on the frame without the interposition of a fixed central post. As a rule, the active casement 1 is connected to the frame via a tilt-and-turn fitting, while the passive casement 2 is installed in the frame as a pure turn casement.

In this case, drive rod fittings 3 and 4 are installed at least in the adjacent vertical beams of the active leaf 1 and the passive leaf 2, in such a way that they lie opposite each other there on the rebate peripheral surface, while they are accommodated as a whole or at least with their drive rods 5, 6 in stepped profile grooves which are covered by the faceplate rails 7, 8 (Fig. 2 to Fig. 7).

The drive rod fitting 3 of the active leaf 1 interacts via its locking member 9 with locking engagements 10, which are guided or fastened to the faceplate rail 8 of the drive rod fitting 4 for the passive leaf 2 so that they can be moved longitudinally. Since the drive rod fitting 3 for the active leaf 1 is a tilt and turn fitting, it is provided with a

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not shown corner drive and at the bottom with a tilt lock of a conventional design (not shown). The innovation presented is usually located on the corner drive not shown in the drive rod fitting. However, it is also possible to position the innovation, i.e. the locking device on the locking side, on another functional component.

According to Fig. 1, the active leaf 1 and the passive leaf 2 with the respective drive rod fittings 3 and 4 are in the locked position. By removing the external strike bar of the passive leaf 2, there is a risk that unauthorised persons can easily gain access to the interior even in the locked position, as the opening offers so much space that a burglar can reach the French casement lever (not shown here) located in the fitting receiving groove in the rebate space, in order to then turn it into the open position and then be able to climb in without causing further damage.

In order to secure the passive leaf 2 in its closed state against burglary, the drive rod fitting 3 of the tilt-and-turn leaf, i.e. the active leaf 1, is secured by the interaction of the locking member 9 located on the drive rod fitting 3 with the locking device 11, which blocks an adjustment of the drive rod 6 of the overturning passive leaf 2 by means of a securing part 12 located on this drive rod 6, wherein, as already mentioned, the securing part 12 is completely covered by the locking engagement 10 in the closed switching position.

According to Fig. 3, 5 and 7, the drive rod fitting 3 with the locking member 9 is in the closed switching position, with the locking member 9 being in direct contact or in direct proximity with the securing part 12 located on the drive rod fitting 4. The locking member 9 is inserted into an insertion slot 13 of the locking engagement 10 and prevents the drive rod fitting 4 from being moved.

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It is particularly advantageous that the locking member 9 is designed as a mushroom-head pin, so that the locking device 11 cannot be levered out. Due to the mushroom-head pin design and the U-shaped covering of the locking engagement 10, all potential areas for ultimately moving the drive rod fitting 4 of the passive leaf 2 into the open position via the securing part 12 are covered. In the event of a direct engagement with the component, both the locking member 9 and the locking engagement 10 are secured accordingly in terms of resistance by the choice of material, in which the locking member 9 is manufactured as an extruded part, for example, and the locking engagement 10 is designed as a stamped part.

Only when the locking member 9 is moved to the left, i.e. out of the locking engagement 10, by adjusting the drive rod fitting 3 of the active leaf 1 or the tilt and turn window as shown in Fig. 2, 4 and 6, can the operating handle on the passive leaf 2, i.e. on the turning leaf, be turned into the opening position after the tilt and turn leaf has been opened.

The embodiment according to Fig. 2 and 3 shows a securing part 12 which is designed as a spring plate and forms a positive and/or non-positive connection with the faceplate 8. The spring plate is divided into two sections, with one section 14 forming the connection to the faceplate 8 of the drive rod fitting 4 and lying flush on the faceplate 8. The other section 15 is slightly angled to section 14, whereby the angle must be designed in such a way that the T-shaped arms 16, 16' of the securing part 12 located there are angled by 90° and act as locking elements, are positioned out of the drive rod 6 in the open state and at a distance from the facing away inner side 18 of the locking engagement 10. In this position according to Fig. 2 of the open position 19, the securing part 12 is in a spring-relieved state.

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When the locking member 9 according to Fig. 3 is transferred from the open position into the closed position via the drive rod fitting 3, the head of the locking member 9 strikes the angled section 15 of the securing part 12 while simultaneously entering the locking engagement 10, so that the locking members 17 are automatically pressed down against the spring force into a cutout 20 of the drive rod, thus securing the drive rod 6 against further displacement.

According to a further embodiment according to Fig. 4 and 5, as in Fig. 2 and 3, the locking engagement 10 is firmly connected to the faceplate rail 8 of the drive rod fitting 4. Furthermore, here too, on the side facing away from the drive rod fitting 4, an insertion slot 13 is provided on the locking engagement 10, into which the locking member 9 moves according to Fig. 5 and in this locking position 21 the French casement window is secured against being levered out due to the mushroom-head-like design of the locking member 9. The security part 12, on the other hand, is L-shaped and divided into two webs 22, 22', wherein one web 22 is non-positively connected to the drive rod 8 of the drive rod fitting 4 and the other web 22' is located in the closed position 21 as a locking member 17 in the U-shaped bolt engagement 10 and is held in a locking manner by the bolt member 9, which is closest to the bolt engagement opening 23. In this exemplary embodiment, it is advantageous if the security part 12 is manufactured as a stamped part due to the cost-effective production and to achieve high strength in the event of a possible break-in attempt. Both for cost reasons and to increase strength and thus to achieve greater resistance to break-ins, the bolt engagement 10, like the security part 12, is manufactured as a stamped part.

According to a further embodiment according to Figs. 6 and 7, a locking device 11 is shown, the securing part 12 of which is Z-shaped and is firmly connected to the U-shaped locking engagement 10 in one or more parts and thus forms an integral component. The connection of the securing part 12 and the locking engagement 10

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is carried out via the horizontal arm 24 of the Z-shaped securing part 12. The other horizontal arm 24' creates the frictional connection with the drive rod 6 of the drive rod fitting 4, so that according to the embodiment according to Fig. 6 and 7, the locking engagement 10 is arranged so that it can be moved above the faceplate 8 in connection with the securing part 12. To secure the drive rod fitting 4, which is assigned to the passive leaf 2, against accidental displacement, a vertical web 25 is arranged, which is secured against accidental displacement in the closed position 21 on the head of the locking member 9 according to Fig. 7. In the closed position 21, the vertical web 25 is spaced approximately the same distance from the locking member 9 as the end of the insertion slot 13 of the locking engagement 10.

If the drive rod fitting 4 of the passive leaf 2 is moved for the first time by unauthorized persons, the stop edge of the end of the insertion slot 13 and that of the vertical web 25 would hit the locking member 9 of the drive rod fitting 3 and thus prevent the window or door from being opened.

Both in Fig. 3 and 5 and also in Fig. 7, the security part 12 in the locked position is completely covered by the locking engagement 10, which is U-shaped as described above, in such a way that in the event of a burglar's possible tool intervention, there is no possibility of moving the security part 12 from its locked position into an unsecured open position.

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List of reference symbols Active leaf, primary leaf, tilt and turn leaf 1 Fixed wing, secondary wing, pivoting wing 2 Espagnolette fitting 3 Espagnolette fitting 4 Drive rod 5 Drive rod 6 Faceplate 7 Faceplate 8th locking link 9 Latch engagement 10 Locking device 11 Safety part 12 Insertion slot 13 Section 14 Section 15 T-shaped arms 16, 16' Locking link 17 inside page 18 open position 19 Excerpt 20 Locking position 21 web 22, 22' Latch engagement opening 23 horizontal arm 24, 24' vertical bridge 25 End 26

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Summary:

The innovation relates to a burglar protection device for a window or a door with two leaves (1,2) installed in a fixed frame directly next to each other - without a fixed central post - which contain, at least on the peripheral rebate surface of the adjacent beams, in a stepped profile groove, a drive rod fitting (3 and 4) consisting of a faceplate (7,8) and a drive rod (5,6) guided longitudinally below it, and the locking member (9) movable on the drive rod (6) of the drive rod fitting (3) with locking engagements

(10) are adjustable in and out of locking engagement, which sit on the faceplate rail (8) of the other drive rod fitting (6) and have a locking device (11) which blocks adjustment of the drive rod (6) of the overlapped passive leaf (2) by interaction of a securing part (12) located on this drive rod (6) with a locking member (9) arranged on the drive rod (5) of the other drive rod fitting (3), wherein the securing part (12) is completely covered by the locking engagement (10) in the closed switching position.

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Claims (12)

1. Burglar protection for a window or a door with two leaves ( 1 , 2 ) installed in a fixed frame directly next to each other - without a fixed central post - in which each leaf ( 1 and 2 ) contains, at least on the peripheral rebate surface of the adjacent beams, a drive rod fitting ( 3 and 4 ) consisting of a faceplate ( 7 , 8 ) and a drive rod ( 5 , 6 ) guided longitudinally displaceably underneath it, in a stepped profile groove, and in which a locking member ( 9 ) or the like which can be moved by the drive rod ( 6 ) of the drive rod fitting ( 3 ) can be adjusted into and out of the locking engagement with locking engagements ( 10 ), which are arranged on the faceplate ( 8 ) of the other drive rod fitting ( 6 ) and have a locking device ( 11 ) which Adjustment of the drive rod ( 6 ) of the overturned passive leaf ( 2 ) is blocked by the interaction of a securing part ( 12 ) located on this drive rod ( 6 ) with a locking member ( 9 ) arranged on the drive rod ( 5 ) of the other drive rod fitting ( 3 ), characterized in that the securing part ( 12 ) is completely covered by the locking engagement ( 10 ) in the closed switching position. 2. Burglar protection according to claim 1, characterized in that the locking engagement ( 10 ) is U-shaped in cross section and is provided with an insertion slot ( 13 ) on the side facing away from the drive rod fitting ( 3 ). 3. Burglar protection according to one or more of the preceding claims, characterized in that the locking engagement ( 10 ) is manufactured as a stamped part. 4. Burglar protection according to claim 1, characterized in that the locking member ( 9 ) is designed as a mushroom head pin in a preferred embodiment. 5. Burglar protection according to claim 1, characterized in that the security part ( 12 ) is designed as a spring plate and has a T-shaped contour when unfolded. 6. Burglar protection according to claim 5, characterized in that the T-shaped arms ( 16 , 16 ') of the security part ( 12 ) are angled by 90° as a finished component and function as locking members ( 17 ). 7. Burglar protection according to one or more of the preceding claims 1 to 6, characterized in that the security part ( 12 ) is connected to the faceplate ( 8 ) of the drive rod fitting ( 4 ) in a force-locking manner and is in the open position ( 19 ) out of engagement with the drive rod ( 6 ) in a spring-relieved manner. 8. Burglar protection according to one or more of the preceding claims 1 to 7, characterized in that the locking members ( 17 ) of the security part ( 12 ) are pressed down by the locking member ( 9 ) in the closed position ( 21 ) into a cutout ( 20 ) of the drive rod ( 6 ) against spring force and thus secure the drive rod ( 6 ) against further displacement. 9. Burglar protection according to claim 1, characterized in that the security part ( 12 ) is L-shaped and is divided into two webs ( 22 , 22 '), wherein one web ( 22 ) is non-positively connected to the drive rod ( 8 ) of the drive rod fitting ( 4 ) and the other web ( 22 ') is arranged in the closed position ( 21 ) as a locking member ( 17 ) in the U-shaped bolt engagement ( 10 ) and is held in a locking manner by the bolt member ( 9 ) which is directed closest to the bolt engagement opening ( 23 ). 10. Burglar alarm according to claim 9, characterized in that the security part ( 12 ) is manufactured as a stamped part. 11. Burglar protection according to claim 1, characterized in that the security part ( 12 ) is Z-shaped, wherein in the closed position ( 21 ) the vertical web ( 25 ) with the end ( 26 ) of the insertion slot ( 13 ) of the U-shaped locking engagement ( 10 ) is held in a locking manner by the locking member ( 9 ) against further displacement. 12. Burglar protection according to claim 11, characterized in that the security part ( 12 ) with the U-shaped locking engagement ( 10 ) are in one or more parts in a fixed connection to each other and are non-positively connected to the drive rod ( 6 ) and are displaceable.