EP3725992A1 - Drive - Google Patents

Abstract

A drive for opening and closing a sash of a window, a door or the like comprises a motor drive unit which can be integrated in the profile of the window or door frame and which interacts with a unilaterally flexurally rigid force transmission element, in particular a chain, to actuate the window or door sash, which is provided at its end that can be connected to the wing with an end piece which can be fixed in a force transmission element block that can be integrated in the wing profile. The end piece of the power transmission element can be fixed in the power transmission element bracket via a latching connection and the power transmission element bracket is designed in such a way that the end piece of the power transmission element is normally used both for motorized opening and closing of the sash and when the sash is closed by the latching connection in the power transmission element bracket can be fixed and the latching connection for an emergency with the wing closed can be released manually from the outside by applying a pressing force by means of a tool that can be passed through an opening provided in the wing profile, in particular a screwdriver or the like, to release the end piece of the force transmission element.

Description

The invention relates to a drive for opening and closing a sash of a window, a door or the like, with a motor drive unit which can be integrated in the profile of the window or door frame and which is used to actuate the window or door sash with a force-transmitting element that is rigid on one side, in particular a Chain or the like, cooperates, which is provided at its end which can be connected to the wing with an end piece which can be fixed in a force transmission element block which can be integrated in the wing profile. It also relates to a window, a door or the like with such a drive.

In the case of integrated drives of the type mentioned at the outset, which include, for example, integrated chain drives, both the motor drive unit and the power transmission element or chain bracket are each integrated in the window or door profile. With such integrated drives, the end piece of the power transmission element is normally fixed in the power transmission element or chain bracket not only for motorized opening and closing of the window or door sash, but also when the sash is closed. If, however, the motorized drive unit fails, it is at least difficult, if not impossible, to open the window or the door in order to get to the motorized drive unit. The connection between the window or door sash and the frame must be mechanically detachable from the outside, which in most cases is very cumbersome and involves a relatively high expenditure of force or even requires partial destruction of the window or door.

The invention is based on the object of specifying an integrated drive of the type mentioned at the beginning, in which the aforementioned disadvantages are eliminated. In particular, it should be ensured that the connection between the End piece of the power transmission element and the power transmission element block and thus the connection between the sash and the frame in an emergency or in the event of a failure of the motorized drive unit, which can be manually released from the outside with minimal effort, avoiding damage to the window or door is.

According to the invention, this object is achieved by a drive with the features of claim 1. Preferred embodiments of the drive according to the invention emerge from the subclaims, the present description and the drawing.

The drive according to the invention for opening and closing a sash of a window, a door or the like comprises a motor drive unit which can be integrated in the profile of the window or door frame and which is used to actuate the window or door sash with a force transmission element that is rigid on one side, in particular a chain or the like , cooperates, which is provided at its end which can be connected to the wing with an end piece which can be fixed in a force transmission element block that can be integrated in the wing profile. The end piece of the power transmission element can be fixed in the power transmission element bracket via a latching connection and the power transmission element bracket is designed in such a way that the end piece of the power transmission element is normally used both for motorized opening and closing of the sash and when the sash is closed by the latching connection in the power transmission element bracket can be fixed and the latching connection for an emergency with the wing closed can be released manually from the outside by applying a pressing force by means of a tool that can be passed through an opening provided in the wing profile, in particular a screwdriver or the like, to release the end piece of the force transmission element.

Because of this design, there is now the possibility of manually releasing the connection between the end piece of the power transmission element and the power transmission element block of an integrated drive for separating the sash and frame in an emergency in a simple and reliable manner from the outside, without running the risk of the Window or door is damaged. It is only necessary to exert a pressing force on the locking connection by means of a tool that can be passed through the opening in the wing profile in order to release it.

The latching connection advantageously comprises at least one engagement element which is mounted in or on the force transmission element block and can be resiliently latched into a corresponding receptacle in the end piece of the force transmission element. As an alternative or in addition, the latching connection can also comprise at least one engaging element which is mounted in or on the end piece of the force transmission element and can be resiliently latched into a corresponding receptacle of the force transmission element block. In this case, a respective engagement element can comprise, for example, a resiliently preloaded bolt or the like that is slidably mounted in the force transmission element bracket or end piece of the force transmission element. To release the latching connection, a respective engagement element can be pushed out of the relevant receptacle against the respective spring force by the pressing force applied by means of the tool, with the result that the end piece of the force transmission element is released. In addition, a respective engagement element can have an inclined surface cooperating with an inclined surface of the end piece of the force transmission element or the force transmission element block, so that when the end piece is inserted into the force transmission element block, it is initially pushed back against the respective spring force and then automatically re-engages.

According to a preferred practical embodiment of the drive according to the invention, the latching connection comprises two opposing bolts or the like, each axially displaceable in the power transmission element block, which extend from opposite sides into a receiving area of the force transmission element block for the end piece of the force transmission element, are resiliently preloaded towards one another and can be snapped into an opening of the end piece of the force transmission element from the two opposite sides to fix the end piece of the force transmission element in the receiving area .

The end piece of the force transmission element can be provided with a through opening into which the two bolts can be latched from opposite sides, or each with a separate opening into which a bolt can be latched on opposite sides.

Reliable locking of the end piece of the force transmission element in the force transmission element bracket is thus not only ensured in a simple manner. In an emergency, the locking connection can also be easily released by pulling the spring-loaded bolts apart against the spring forces and thus pulling them out of the end piece of the force transmission element using the pressure force applied manually from the outside by means of the tool. After the end piece has been removed from the force transmission element block, the bolts automatically return to their original position due to the spring forces acting on them.

The power transmission element bracket is expediently provided with a release mechanism, via which the resiliently preloaded bolts to release the locking connection and to release the end piece of the power transmission element can be pressed apart against the spring forces with a respective application of a pressing force applied by the tool.

The trigger mechanism of the force transmission element block comprises according to an advantageous practical embodiment of the drive according to the invention two opposing bearing elements, each axially displaceable in the power transmission element block, resiliently preloaded towards one another and laterally delimiting the receiving area, on each of which one of the two bolts is firmly supported and via which the bolts are resiliently preloaded towards one another.

To release the latching connection, the resiliently preloaded bearing elements are to be pressed apart in this case against the spring forces acting on them, whereby the two bolts are accordingly pulled apart to release the end piece of the force transmission element.

It is particularly advantageous if the release mechanism comprises an intermediate piece which is arranged between the two resiliently preloaded bearing elements, is displaceable perpendicular to the bearing elements and can be acted upon by the tool, which has inclined surfaces cooperating with complementary inclined surfaces of the bearing elements, so that when the Intermediate piece by a pressing force applied by means of the tool and an associated displacement of the intermediate piece relative to the bearing elements, the two bearing elements and thus the two bolts for releasing the locking connection and releasing the end piece of the force transmission element can be pressed apart.

As mentioned above, any other engagement elements can also be provided instead of the bolts or the like.

The result is a simple, reliable release mechanism with which a respective pressing force applied to the intermediate piece by means of the tool causes the two bolts to be pulled apart to release the latching connection and to release the end piece of the force transmission element.

According to an expedient practical embodiment of the drive according to the invention, the two bearing elements are each designed angularly and the bolts are firmly supported on opposing first legs of the angular bearing elements, while the intermediate piece is arranged between second legs that are at least substantially perpendicular to the first legs. In this case, the complementary inclined surfaces of the bearing elements cooperating with the inclined surfaces of the intermediate piece can be provided on their second legs.

It is particularly advantageous if the end piece of the force transmission element has inclined surfaces cooperating with complementary inclined surfaces of the bolts on opposite sides, so that when the end piece of the force transmission element is inserted into the force transmission element bracket, the two bolts are initially pressed apart against the spring forces acting on them in order to then snap into the end piece of the force transmission element by the spring forces.

While the bolts are automatically moved towards each other again as a result of the spring forces acting on them after the tool has been pulled out after the latching connection has been released and the end piece of the force transmission element has been separated from the force transmission element block, each time the end piece of the force transmission element is inserted into the Force transmission element block or a respective closing of the window or the door by the cooperating inclined surfaces of the force transmission element and the bolts, the bolts are initially pushed apart again against the spring forces acting on them. As soon as the end piece of the force transmission element has reached its end position in the force transmission element block, the bolts snap through the ones acting on them Spring forces automatically into the end piece, whereby the locking connection between the end piece of the power transmission element and the power transmission element block or between the sash and the frame is automatically restored.

With the emergency release according to the invention for integrated drives, unlocking is possible without the high expenditure of force previously required and while avoiding the previously existing risk of damage to the window or door. For emergency unlocking, a pushing force only needs to be applied using a tool such as a simple screwdriver. In addition, the window or door can simply be pushed shut again due to the cooperating inclined surfaces of the bolts and the end piece, which automatically re-establishes the connection between the end piece of the force transmission element and the force transmission element block or between the sash and the frame. After the force transmission element or chain connection has been separated, maintenance of the drive and / or opening of the window or door is possible very quickly and without complex assembly. The assembly of the entire system is also simplified. The force transmission element or chain bracket is introduced and the end piece of the force transmission element or chain is connected to the force transmission element bracket or chain bracket by simply pressing the window or door shut.

The window, door or the like according to the invention is characterized in that it or they are provided with a drive according to the invention.

Fig. 1

eine schematische Darstellung einer beispielhaften Ausführungsform eines erfindungsgemäßen integrierten Antriebs eines Fensters bei geschlossenem Fenster und mit dem Kraftübertragungselement-Bock verrasteten Bolzen,

Fig. 2

eine schematische Darstellung des Antriebs gemäß Fig. 1 in einer Phase, in der die beiden Bolzen durch die mittels des Werkzeugs aufgebrachte Drückkraft zur Freigabe des Endstücks des Kraftübertragungselements aus dem Kraftübertragungselement-Bock herausgezogen werden,

Fig. 3

eine schematische Darstellung des Antriebs gemäß Fig. 1 in einer Phase, in der die Bolzen nach einer Entnahme des Endstücks des Kraftübertragungselements mit dem Herausziehen des Werkzeugs durch die Federkräfte wieder aufeinander zu in deren Ausgangsstellung bewegt werden, und

Fig. 4

eine schematische Darstellung des Antriebs gemäß Fig. 1 in einer Phase, in der die federbelasteten Bolzen automatisch wieder in den Kraftübertragungselement-Bock eingerastet sind, nachdem sie zuvor infolge der zusammenwirkenden Schrägflächen des Endstücks des Kraftübertragungselements und der Bolzen mit dem Einsetzen des Endstücks entgegen der Federkräfte auseinandergedrückt wurden.

The invention is explained in more detail below using an exemplary embodiment with reference to the drawing; in this show:

Fig. 1

a schematic representation of an exemplary embodiment of an integrated drive of a window according to the invention with the window closed and bolts latched to the power transmission element bracket,

Fig. 2

a schematic representation of the drive according to Fig. 1 in a phase in which the two bolts are pulled out of the force transmission element bracket by the pressing force applied by the tool to release the end piece of the force transmission element,

Fig. 3

a schematic representation of the drive according to Fig. 1 in a phase in which, after the end piece of the force transmission element has been removed and the tool is withdrawn, the spring forces move the bolts towards one another again into their initial position, and

Fig. 4

a schematic representation of the drive according to Fig. 1 in a phase in which the spring-loaded bolts are automatically re-engaged in the force transmission element bracket after they have previously been pushed apart as a result of the cooperating inclined surfaces of the end piece of the force transmission element and the bolt with the insertion of the end piece against the spring forces.

The Figs. 1 to 4 show a schematic representation of an exemplary embodiment of an integrated drive 10 according to the invention for opening and closing a window. In principle, however, such a drive can also be provided for opening and closing a door or the like.

The drive 10 comprises a motor drive unit which can be integrated in the profile of the window frame and which, in order to actuate the window sash, interacts with a force transmission element that is rigid on one side, such as a chain or the like, which is provided at its end that can be connected to the sash with an end piece 12 which is in a Wing profile integrable power transmission element block 14 can be fixed.

The end piece 12 of the force transmission element can be fixed in the force transmission element block 14 via a latching connection 16 and the force transmission element block 14 is designed in such a way that the end piece 12 of the force transmission element is normally used both for motorized opening and closing of the sash and when the sash is closed Locking connection 16 can be fixed in the power transmission element bracket 14 and the locking connection 16 can be released manually from the outside by applying a pressure F using a tool 18 which can be passed through an opening provided in the wing profile to release the end piece 12 of the power transmission element in an emergency with the wing closed. A screwdriver or the like, for example, can be used as the tool 18.

The latching connection 16 comprises two opposing bolts 20, each axially displaceable in the force transmission element block 14, which extend from opposite sides into a receiving area 22 of the force transmission element block 14 for the end piece 12 of the force transmission element, resiliently preloaded towards one another and for Fixing the end piece 12 of the force transmission element in the receiving area 22 can be latched into an opening 24 of the end piece 12 of the force transmission element from the two opposite sides.

The end piece 12 of the power transmission element can be provided with a through opening 24 into which the two bolts 20 from opposite sides Ends can be locked in place. In principle, however, such an embodiment is also conceivable in which the end piece 12 of the force transmission element is provided with a separate opening 24 on opposite sides, into which a bolt 20 can be latched.

The force transmission element bracket 14 is provided with a release mechanism 26 via which, with a respective loading by a pressing force F applied by means of the tool 18, the bolts 20, which are resiliently preloaded towards one another, for releasing the latching connection 16 and for releasing the end piece 12 of the force transmission element against the spring forces are squeezable.

In the present case, the release mechanism 26 of the force transmission element block 14 comprises two opposing bearing elements 28, each axially displaceable in the force transmission element block 14, resiliently preloaded towards one another and laterally delimiting the receiving area 22, on each of which one of the two bolts 20 is firmly supported is and via which the bolts 20 are resiliently preloaded towards one another.

As can be seen from the figures, the release mechanism 26 in the present case also comprises an intermediate piece 30 which is arranged between the two resiliently preloaded bearing elements 28, can be displaced perpendicular to the bearing elements 28 and can be acted upon by the tool 18 and which interacts with complementary inclined surfaces 32 of the bearing elements 28 Has inclined surfaces 34, which cause the two bearing elements 28 and thus the two bolts 20 to loosen the two bearing elements 28 and thus the two bolts 20 when the intermediate piece 30 is acted upon by a pressing force F applied by means of the tool 18 and the associated displacement of the intermediate piece 30 relative to the bearing elements 28 Latching connection 16 and can be pressed apart to release the end piece 12 of the force transmission element.

The two bearing elements 28 in the present exemplary embodiment are each designed angularly and the bolts 20 are firmly supported on opposing first legs 28 'of the angular bearing elements 28, while the intermediate piece 30 between the second legs 28' ', which are at least substantially perpendicular to the first legs 28' Bearing elements 28. The inclined surfaces 32 of the bearing elements 28 which interact with the complementary inclined surfaces 34 of the intermediate bearing piece 30 are provided on their second legs 28 ″.

The end piece 12 of the force transmission element has on opposite sides with complementary inclined surfaces 36 of the bolts 20 cooperating inclined surfaces 38 so that when the end piece 12 of the force transmission element is inserted into the force transmission element bracket 14, the two bolts 20 are initially pressed apart against the spring forces acting on them in order to then snap into the end piece 12 of the force transmission element by the spring forces.

Fig. 1 shows the integrated drive 10 with the window closed and with the power transmission element block 14 latched bolts 20. In the illustration according to FIG Fig. 2 the two bolts 20 are pulled out of the force transmission element bracket 14 by the pressing force F applied by means of the tool 18 to release the end piece 12 of the force transmission element. Fig. 3 shows the integrated drive 10 in a phase in which the bolts 20 after removal of the end piece 12 of the force transmission element with the pulling out of the tool 18 are moved towards each other by the spring forces again into their starting position. In the representation according to Fig. 4 the spring-loaded bolts 20 are automatically snapped back into the power transmission element block 14 after they have previously been due to the cooperating inclined surfaces 38, 36 of the end piece 12 of the power transmission element and the bolts 20 with the insertion of the end piece 12 were pushed apart against the spring forces.

With the drive 10 according to the invention, the connection between the end piece 12 of the power transmission element and the power transmission element block 14 and, accordingly, the connection between the sash and the frame of the window in an emergency or in the event of a respective failure of the motor drive unit is easily and reliably under with minimal effort Avoiding damage to the window can be removed manually from the outside.

List of reference symbols

10

drive

12

End piece

14th

Power transmission element bracket

16

Locking connection

18th

Tool

20th

bolt

22nd

Recording area

24

opening

26th

Release mechanism

28

Bearing element

28 '

first leg

28 "

second leg

30th

Intermediate piece

32

Inclined surface of a bearing element

34

Inclined surface of the intermediate piece

36

Inclined surface of a bolt

38

Inclined surface of the end piece

F.

Pressing force

Claims (13)

Drive (10) for opening and closing a sash of a window, a door or the like, with a motorized drive unit which can be integrated in the profile of the window or door frame and which is used to actuate the window or door sash with a force transmission element that is rigid on one side, in particular a chain , cooperates, which is provided at its end that can be connected to the wing with an end piece (12) which can be fixed in a force transmission element block (14) that can be integrated in the wing profile, the end piece (12) of the force transmission element via a latching connection (16) in the force transmission element block (14) can be fixed and the force transmission element block (14) is designed so that the end piece (12) of the force transmission element is normally used both for motorized opening and closing of the wing and when the wing is closed by the latching connection (16) in Force transmission element block (14) can be fixed and the locking connection (16) for emergencies b A closed wing can be released manually from the outside by applying a pressing force (F) by means of a tool (18) which can be passed through an opening provided in the wing profile, in particular a screwdriver or the like, to release the end piece (12) of the force transmission element. Drive according to claim 1,
characterized in that the latching connection (16) comprises at least one engagement element mounted in or on the force transmission element block (14) and resiliently latched into a corresponding receptacle in the end piece (12) of the force transmission element. Drive according to claim 1 or 2,
characterized in that the latching connection (16) comprises at least one engaging element mounted in or on the end piece (12) of the force transmission element and resiliently snapped into a corresponding receptacle of the force transmission element block (14). Drive according to at least one of the preceding claims,
characterized in that a respective engagement element of the latching connection comprises a resiliently preloaded bolt (20) or the like mounted displaceably in the force transmission element block (14) or end piece (12) of the force transmission element. Drive according to claim 4,
characterized in that the latching connection (16) comprises two opposing bolts (20) or the like, each axially displaceable in the power transmission element block (14), which extend from opposite sides into a receiving area (22) of the power transmission element block ( 14) for the end piece (12) of the force transmission element, resiliently preloaded towards each other and for fixing the end piece (12) of the force transmission element in the receiving area (22) from the two opposite sides into an opening (24) of the end piece (12) of the Force transmission element can be locked. Drive according to claim 5,
characterized in that the end piece (12) of the force transmission element is provided with a through opening (24) into which the two bolts (20) can be latched from opposite ends. Drive according to claim 5,
characterized in that the end piece (12) of the force transmission element is provided on opposite sides with a separate opening (24) in each of which a bolt (20) can be latched. Drive according to at least one of the preceding claims,
characterized in that the power transmission element block (14) is provided with a release mechanism (26) via which the resiliently preloaded bolts (20) are released when a pressure force (F) applied by means of the tool (18) is applied the latching connection (16) and to release the end piece (12) of the force transmission element can be pressed apart against the spring forces. Drive according to claim 8,
characterized in that the release mechanism (26) of the force transmission element block (14) comprises two opposing bearing elements (28), each axially displaceable in the force transmission element block (14), resiliently preloaded towards one another and laterally delimiting the receiving area (22), on each of which one of the two bolts (20) is firmly supported and via which the bolts (20) are resiliently preloaded towards one another. Drive according to claim 9,
characterized in that the release mechanism (26) also comprises an intermediate piece (30) which is arranged between the two resiliently preloaded bearing elements (28) and can be displaced perpendicular to the bearing elements (28) and can be acted upon by the tool (18) and which has complementary inclined surfaces (32) of the bearing elements (28) has co-operating inclined surfaces (34) so that when the intermediate piece (30) is acted upon by a pressing force (F) applied by means of the tool (18) and the associated displacement of the intermediate piece (30) relative to the bearing elements (28) the two bearing elements (28) and thus the two bolts (20) can be pressed apart for releasing the locking connection (16) and for releasing the end piece (12) of the force transmission element. Drive according to claim 10,
characterized in that the two bearing elements (28) are each designed angularly and the bolts (20) are firmly supported on opposite first legs (28 ') of the angular bearing elements (28), and the intermediate piece (30) between opposite the first legs ( 28 ') is arranged at least substantially perpendicular second legs (28 ") of the bearing elements (28). Drive according to at least one of the preceding claims,
characterized in that the end piece (12) of the force transmission element has on opposite sides with complementary inclined surfaces (36) of the bolts (20) cooperating inclined surfaces (38), so that with a respective insertion of the end piece (12) of the force transmission element into the force transmission element Bock (14) the two bolts (20) against the one acting on them Spring forces are first pressed apart in order to then snap into the end piece (12) of the force transmission element by the spring forces. Window, door or the like with a drive according to at least one of the preceding claims.

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