DE29614557U1 - Turn-tilt window or door - Google Patents

Description

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Tilt and turn window or door

The invention relates to a tilt and turn window or door with a drive rod fitting that is able to move locking elements into a locking position as a result of the operation of a leaf-fixed operating handle.

Windows and doors with the above-mentioned features are generally known. Their sashes can be opened from a locking position after the corresponding actuation of the drive rod fitting, namely by turning, pivoting or tilting. When the sash is closed, the locking elements move into a locking position in which the sash is locked when the actuation handle fixed to the sash is actuated in the sense of locking. Such windows or doors are not suitable as fire protection windows. Fire protection windows must be closed in the event of a fire. They are therefore usually designed as fixed glazed elements, whose sash cannot be opened. This ensures that in the event of a fire, smoke or fire cannot get through the window or door into an adjacent room.

Such a fire protection window that is always closed has the disadvantage that it cannot be opened. On the other hand, windows that can be opened are not approved as fire protection windows by the relevant testing institutes.

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The invention is based on the task of designing a window or a door with the features mentioned above in such a way that it is suitable for approval, i.e. that it complies with the guidelines of the testing institutes and with DIN 4102, Part 13.

The above-mentioned task is solved by providing an automatic closing mechanism that moves the sash from an open position to the closed position and can be triggered automatically in the event of a fire or similar, by the locking elements being automatically adjustable to a locking position before or during the closing of the sash and by the drive rod fitting having a handle freewheel that allows the operating handle to be adjusted from a handle opening position to the handle locking position if required.

For the invention, it is important that there is an automatic closing mechanism that moves the sash from an open position to the closed position and that can be triggered automatically in the event of a fire or similar. As a result, a sash in an open position can be closed if a fire occurs or if there is another alarm in which the fire protection window must be closed in accordance with the approval regulations. It is also important that the locking elements can be automatically adjusted to a locking or standby locking position before or during the closing of the sash. Since the drive rod fitting has moved the locking elements to an open position when the sash is opened, i.e. when turning or tilting, the locking elements must be adjustable to a standby locking position in the event of a fire. This adjustment must take place before or during the closing of the sash, whereby the adjustment can also take place after the sash has been moved by the automatic closing mechanism to the closing or standby locking position. It is important that this adjustment is made automatically so that it cannot be forgotten.

Ultimately, it is important for the invention that the drive rod fitting enables the operating handle to be

Handle opening position to the handle locking position. Such a freewheel is necessary so that the operating handle can be easily moved from an open position to a locking position after the wing has been closed by the automatic closing mechanism. This is because when the wing is closed by the automatic closing mechanism, the operating handle does not need to be reset and therefore does not reach its handle locking position. The return movement of the operating handle from a handle opening position to the handle locking position under the effect of the handle freewheel therefore enables the wing to be opened again by operating the operating handle.

The tilt-and-turn window or tilt-and-turn door can be further developed by making the locking elements adjustable using the drive rod fitting actuated by the automatic locking mechanism. This simplifies the construction, as the automatic locking mechanism acts on the drive rod fitting both to adjust the locking elements to their turn or tilt opening position and to adjust the locking elements back to the locking position, which can be done using the same components.

In order to achieve automatic activation of the automatic closing mechanism, the tilt-and-turn window or tilt-and-turn door is designed in such a way that the automatic closing mechanism can be activated by a smoke detector and/or a fire detector and/or a building monitoring device. The detectors and/or the monitoring device enable the automatic closing mechanism to be activated in such a way that all faults can be taken into account. Although the fire protection windows are primarily intended to control building fires, they can also be used to protect against other faults, e.g. in chemical plants in the event of operational disruptions, to prevent the spread of harmful gases or to prevent unwanted persons from entering through windows or doors in the event of a break-in or sabotage.

The tilt-and-turn window or tilt-and-turn door can advantageously be designed so that the automatic closing mechanism is attached to the fixed frame and is connected to the sash with a motor- or mechanically operated closing arm. As a result, the mass of the automatic closing mechanism does not need to be moved, so that it is possible to manage with comparatively low adjustment forces. This is particularly advantageous if the automatic closing mechanism does not operate the closing arm with a motor, for example with an electric actuator, but mechanically, for example by means of a pulling weight that is blocked from moving until it is triggered. The latter design is independent of a power supply.

If the automatic closing mechanism is a door or window closer with a sensor attached to its housing, the result is a compact unit that, in the case of a mechanical drive, functions as such, i.e. without connection to other components.

It may be useful to design the window or door in such a way that a locking element is designed as a latch part, which automatically snaps into its locking position from a latch box after the sash has moved into its closed position. In this case, it is not necessary for the automatic locking mechanism to drive the drive rod fitting in order to use it to adjust the locking elements to a locking or ready-to-lock position. Instead, the latch function of the latch part can be used. Designing the locking element as a latch part in this way is useful so that the locking elements are always in a ready-to-lock position. Such latch parts can also be used to achieve a very effective and powerful locking of the sash to the frame. It is also possible to move the operating handle back into its handle-locking position after the sash has been opened, so that the sash only needs to be pushed shut when closing. This also has the advantage that incorrect operation of the sash can be avoided and the sash is automatically locked to prevent break-ins.

A very good protection of the sash in the event of a fire and against forced opening of the sash can be achieved by attaching a locking element to each vertical frame near the sash corner.

A structurally advantageous further development of the tilt-and-turn window or tilt-and-turn door can be achieved by designing a latch box of a locking element as a tilt bearing for the sash. All the parts required for the tilt bearing can be easily accommodated in the latch box of the locking element.

A practical design of such a tilt-and-turn window or such a tilt-and-turn door with a latch box designed as a tilt bearing is characterized in that the latch box forming the tilt bearing has a tilt bearing part which can be adjusted by the drive rod fitting when the locking elements are adjusted in the tilt opening position into engagement with the frame or a tilting strike plate attached to it.

In order to ensure that the tilt-and-turn window or tilt-and-turn door remains functional in the event of a fire and can also be operated afterwards, the window or door is designed in such a way that the drive rod fitting and the locking elements are made of materials that are heat-resistant in the event of a fire.

The invention is explained using an embodiment shown in the drawing. It shows:

Fig.l the schematic interior view of a fire protection window
after the invention,

Fig.2 a perspective detailed view of a
tilt bearing side locking element, and

Fig.3 is a representation corresponding to Fig.2 at
open wing.

Fig. 1 shows a tilt and turn window installed in a conventional manner in a building wall opening (not shown),

with a frame 15 and a sash 13 that is attached to it in a relatively movable manner. Behind a sash overlap 23 of the sash 13, a drive rod fitting 10 is arranged in a concealed manner. The drive rod fitting is assembled with the sash in a conventional manner, for example by installation in a groove in the sash frame beams that opens on the outside of the rebate towards the frame 15. With this drive rod fitting 10, all components that are relatively movable with it are driven by turning an operating handle 12 that is fixed to the sash. In particular, locking elements 11 are present that must be actuated so that they can assume the different positions provided for functional reasons in a closed position of the sash 13 on the one hand and in a turning or tilting opening position of the sash 13 on the other. The conversion of the rotary adjustment of the operating handle 12 into a displacement of the drive rod fitting 10 takes place in a conventional manner, e.g. with a window gear .

The window shown in Fig. 1 is intended to be operated in the normal way. The window sash should therefore be able to be opened or closed independently of the fire protection or other protective functions intended for the window. When the sash is in the closed position, the locking elements 11 of the drive rod fitting 10 prevent the sash from opening in an unwanted manner. When turning, the sash 13 is mounted on the wall side, i.e. on the right vertical frame beam 20 in Fig. 1 there is a corner bearing 24 at the bottom, which transfers the vertical load of the sash 13 to the frame and allows the sash 13 to pivot, and at the upper end of the beam 20 there is a scissor bearing 25, which together with the corner bearing 24 determines the axis of rotation of the sash 13 and takes over the horizontal load of the sash from a scissor (not shown) and transfers it to the frame 15. The opening scissors are designed in a conventional manner and are hinged to the scissors bearing 25 and to the upper edge of the upper horizontal wing spar 2 6. It enables the tilt opening of the wing 13, for which the drive rod fitting 10 must be adjusted by turning the operating handle 12, namely usually in the position shown in Fig.

1 not shown vertical position, so that the scissor bearing 25 is opened and a tilting bearing of the sash 13 is created at the lower end of the left vertical frame beam 19 in Fig. 1, which together with the corner bearing 24 determines the horizontal tilting axis.

An automatic closing mechanism 14 is attached to the upper horizontal frame beam 27, the housing 16 of which has been shown schematically and which has a sensor 17, the activation of which triggers the automatic closing mechanism 14. The activation takes place in the event of a fire, for example by measuring the temperature. Instead of the sensor, other triggering elements can also be used, such as smoke detectors or building monitoring devices. The sensor 17 or the aforementioned detectors or monitoring devices can also be arranged away from the window or door in order to activate the sash 13 even when the danger has not yet reached the window or door.

The automatic closing mechanism 14 has a closing arm (not shown) or is otherwise mechanically connected to the wing 13, namely by a hinge. The hinge is in the manner of a known door closer or in the manner of a known window closer. In the event of danger, it is important that the wing 13 can be moved back into its closed position from any open position.

Furthermore, in the event of danger, it must be ensured that the locking elements of the drive rod fitting do not interfere and that they perform their function when the sash is automatically closed. Conventional drive rod fittings allow the operating handle to be moved to the handle locking position after the sash has been opened by turning or tilting. In these cases, it must be ensured that the locking elements do not hinder the closing of the sash. To do this, the automatic closing mechanism 14 must be able to adjust the drive rod fitting 10 so that the sash 13 can be closed. To do this, the automatic closing mechanism 14 must be in a suitable structural connection with the drive rod fitting 10.

hen, for example also via the aforementioned locking arm, not shown in the drawing. With the help of this structural connection between the automatic locking mechanism 14 and the drive rod fitting 10, it must also be possible to ensure that the locking elements 11, if they are not in a locking or ready-to-lock position after the sash 13 has been opened by turning or tilting, can be adjusted to their locking position after the sash 13 has been closed by the automatic locking mechanism 14. The two aforementioned structural conditions of mechanical loading of the sash 13 or the drive rod fitting 10 can be solved in a variety of structural ways, so that they will not be discussed in more detail here.

It is advantageous to equip the window with special locking elements 11. According to Fig. 2, 3, the locking elements are designed as latch parts, as are known from door locks, for example. Such a locking element 11 designed as a latch part is arranged in a latch box 8, which is built into the sash 13 or in its sash frame beam. For installation, a conventionally manufactured recess is provided, which enables the latch box 18 to be inserted and fastened in a conventional manner. A total of 5 such locking elements 11 are provided, each on the vertical beams 19, 20. Four of the locking elements 11 are located near the respective frame corners and a fifth locking element is arranged at the height of the operating handle 12. The locking elements 11 engage into locking plates 22, which are attached to the vertical frame beams 19, 20 with fastening screws 28.

The locking element 11 is shown in Fig. 2 in its locking position. It engages in the locking plate 22 so that the wing 13 cannot be opened. In Fig. 4, the locking element 11 is pulled out of the locking plate 22 so that the wing 13 could be moved into the tilt position shown. It is also possible to pivot the wing 13 into a rotary opening position if the locking element 11 assumes the position shown in Fig. 3, which is achieved by a

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corresponding actuation of the drive rod fitting 10 with the operating handle 12 is achieved.

To tilt the sash 13 in the position shown in Fig. 3, the latch box 18 of the sash opening side beam 19 is designed with a special tilt bearing part 21 that has the shape of a pin. This pin is arranged horizontally and is directed towards the tilting strike plate 22. The tilting strike plate 22 has a tilt bearing opening 29 into which the tilt bearing part 21 engages when it is axially displaced. This axial displacement, which can be seen from the comparison of Fig. 2, 3, takes place by applying the drive rod fitting 10 when the sash 13 is to be tilted. Otherwise, the tilt bearing part 21 is in the position shown in Fig. 2. The special design of the latch box 18 and the drive rod fitting 10 for actuating the tilt bearing part 21 is not shown in more detail, since corresponding structural elements are known per se.

The design of the locking elements 11 as latch parts that automatically snap into the locking position is advantageous with regard to the automatic closing of the sash 13. A drive rod fitting that is not in the position intended for this opening position when the sash 13 is open interferes with the automatic closing. The latch function of the locking elements 11 means that they can move back when the sash 13 is closed if the sash with the latch elements 11 runs onto the frame 15 or its bars 19, 20. The sash 13 is closed and the latches automatically snap into the recesses in their strike plates. The latch parts can be designed in such a way that they reach their locking position independently of actuation by the drive rod fitting 10 by being actuated, as is known from automatically closing door locks. The locking elements 11 can also be actuated by the drive rod fitting 10 in order to reach their locking position if this is driven accordingly by the automatic closing mechanism 14. In this case, the locking elements are automatically adjusted to their locking position during the closing of the wing 13, namely

either with the help of the automatic closing mechanism or as a result of its design as a latch part. The latter also ensures that the locking elements 11 are in a position ready for locking if the drive rod fitting 10 is in a functional position that does not correspond to the respective opening position. The locking elements 11 that may then be extended do not prevent the door from closing.

With regular sash operation, the window sash is opened in such a way that the locking elements 11 are retracted by applying pressure to the drive rod fitting 10 with the operating handle 12 and can also remain retracted while the sash 13 is open. In the event of danger, the automatic closing mechanism 14 is activated and closes the sash 13. During closing or after the sash 13 has reached its closed position, the locking elements 11 engage again in the frame or its strike plates by either being applied by the drive rod fitting 10, which is driven accordingly by the automatic closing mechanism, or by automatically snapping into place if they are designed as latch parts. With this adjustment, the operating handle 12 is not applied. Instead, a handle freewheel is provided. This is used by the automatic closing mechanism after the door leaf 13 has been closed to move the operating handle from the incorrect opening position when the leaf 13 is closed to the handle locking position, so that the drive rod fitting 10 can then be actuated again from its locking position into which it was moved by the automatic closing mechanism. If the automatic closing mechanism could also rotate the operating handle 12, which is not usually to be expected due to the adjustment forces, a handle freewheel would not be necessary. A handle freewheel can also be omitted if the automatic closing mechanism only closes the leaf 13 but does not act on the drive rod fitting 10, because the locking elements 11 designed as latch parts automatically move into their locking position when the leaf is closed. In this case, the drive rod fitting can be moved from the incorrect opening position to the locking position when the leaf 13 is automatically closed.

tion by turning the operating handle 12 back.

Claims (10)

«&iacgr; ·· ** »···*.1996• · · · t«.0730 Claims: 1. Tilt and turn window or door, with a drive rod fitting (10) which can adjust locking elements (11) into a locking position as a result of actuation of an operating handle (12) fixed to the sash, characterized in that an automatic closing mechanism (14) is present which moves the sash (13) from an open position into the closed position and can be triggered automatically in the event of a fire or the like, that the locking elements (11) can be adjusted automatically into a locking or ready-to-lock position before or during the closing of the sash (13), and that the drive rod fitting (10) has a handle freewheel which allows the operating handle (12) to be adjusted from a handle opening position into the handle locking position if required. 2. Tilt and turn window or door according to claim 1, characterized in that the locking elements (11) can be adjusted into the locking position by means of the drive rod fitting (10) acted upon by the automatic closing mechanism (14). 3. Tilt and turn window or door according to claim 1 or 2, characterized in that the automatic closing mechanism (14) can be triggered by a smoke detector and/or by a fire detector and/or by a building monitoring device. 4. Tilt and turn window or door according to one or more of claims 1 to 3, characterized in that the automatic closing mechanism (14) is attached to the fixed frame (15) and is articulated to the sash (13) by means of a motor- or mechanically actuated closing arm. 5. Tilt and turn window or door according to claim 4, characterized in that the automatic closing mechanism (14) is one or Window closer with a sensor (17) attached to its housing (16). 6. Tilt and turn window or door according to one or more of claims 1 to 5, characterized in that a The locking element is designed as a latch part which automatically snaps into its locking position from a latch box (18) after the sash (13) has moved into its closed position.
10 7. Tilt and turn window or door according to one or more of claims 1 to 6, characterized in that a locking element (11) is attached to each of the vertical frame members (19, 20) near the sash corners. 8. Tilt and turn window or door according to one or more of claims 1 to 7, characterized in that a latch box (18) of a locking element (11) is designed as a tilting bearing for the sash (13). 9. Tilt and turn window or door according to claim 8, characterized in that the latch box (18) forming the tilt bearing has a tilt bearing part (21) which can be adjusted by the drive rod fitting (10) into engagement with the frame (15) or a tilt locking plate (22) attached thereto when the locking elements (11) are adjusted in the tilt opening position with the drive rod fitting (10). 10. Tilt and turn window or door according to one or more of claims 1 to 9, characterized in that the drive rod fitting (10) and the locking elements (11) consist of materials which are heat-resistant in the event of fire.