EP3626918A1 - Fitting for a window, window - Google Patents

Abstract

The invention relates to a fitting (1) for a window (2), in particular a casement window, comprising a gear (3), a first locking device (4) which can be actuated by means of the gear (3) and a second locking device which can be actuated by means of the gear (3). 5), wherein the first locking device (4) has at least one pin (7) which can be brought into engagement with a pin receptacle (6) and the second locking device (5) has at least one spring catch (9) which can be brought into engagement with a catch receptacle (8) comprising a handle element (10) which is operatively connected to a gear rod (11) of the gear (3) for actuating the gear (3) and which can be moved in at least three handle positions (A, B, C), both in the handle position (A) Locking devices (4, 5) are activated, only the second locking device (5) is activated in the handle position (B) and both locking devices in the handle position (C) n (4, 5) are deactivated. According to the invention, the gear (3) comprises at least one return spring (12) for automatically returning the handle element (10) from the handle position (C) to the handle position (B) Fitting (1).

Description

The invention relates to a fitting for a window, in particular a casement window, with the features of the preamble of claim 1. Furthermore, the invention relates to a window, in particular a casement window, with such a fitting.

If there is talk of a "window" in the present case, this also includes windows designed as window doors. The term "window" therefore always includes French doors.

State of the art

Windows with a rotating sash or a rotating / tilting sash are known from the prior art. This means that the sash to be opened is attached to a frame via a pivot bearing or a pivot / tilt bearing. Opposite the bearing side, a handle element is generally attached to the wing, which is operatively connected to a gear for actuating a locking device. By changing the grip position of the grip element, the locking device is locked or unlocked. With the help of the locking device, the window can thus be secured against unauthorized opening.

A locking device for a window generally has at least one pin which can be brought into engagement with a pin receptacle arranged on the frame by means of the gear mechanism. In this way, a positive connection that is effective in the opening direction of the window is achieved via the pin engaging in the pin receptacle. The pin can be designed in such a way that it engages behind the pin receptacle, at least in sections, so that an additional positive engagement perpendicular to the direction of movement of the pin is achieved.

From the EP 0 249 683 A1 is an example of a locking device for the sash of windows, doors or the like, which comprises locking cams which can be brought into locking engagement with locking pieces arranged on the frame by means of a drive rod. In addition, the closure device comprises a spring catch, by means of which the sash can also be fixed to the frame. In order that the spring catch can be made effective or ineffective between the sash and the frame, the drive rods of the gearbox can be moved into three different switching positions. In two of the three switching positions, the spring catch can be brought into locking engagement with an associated locking frame-side locking piece, while all the other locking elements can only be put into locking engagement with their respective locking pieces in one of these two switching positions. The locking function of the locking cams is thus retained, so that the required sealing closure between the sash and the frame can be produced via the locking cams which can be brought into locking engagement with the respective locking pieces. The spring catch alone cannot achieve this tight closure, since it only has another locking function.

Starting from the above-mentioned prior art, the present invention is based on the object of specifying a fitting for a window which not only meets the current requirements of the Energy Saving Ordinance (EnEV) with regard to air permeability or tightness, but also fulfills fire protection requirements. A window equipped with such a fitting should in particular be certifiable as a fire protection closure.

To solve the problem, the fitting with the features of claim 1 and the window with the features of claim 12 are proposed. Advantageous developments of the invention can be found in the respective subclaims.

Disclosure of the invention

The proposed fitting for a window, in particular a casement window, comprises a gear, a first locking device which can be actuated by the gear and a second locking device which can be actuated by the gear, the first locking device at least one pin which can be brought into engagement with a pin receptacle and the second locking device at least one in Has engagement with a snap catch bringable spring catch. The fitting further comprises a handle element which is operatively connected to a gear rod of the gearbox for actuating the gearbox and is movable in at least three handle positions A, B, C. In the handle position A both locking devices are activated, in the handle position B only the second locking device is activated and in the handle position C both locking devices are deactivated. According to the invention, the transmission comprises at least one return spring for the automatic return of the handle element from the handle position C to the handle position B. This means that the handle element is automatically returned to a handle position in the return spring, in which the spring catch is reactivated after deactivation (handle position C) (handle position B). The return spring thus not only ensures that the window closes automatically, but also remains closed until the handle element is moved into the handle position C again. With the help of the fitting, a window can thus be upgraded to a fire protection element, since it fulfills the requirements of self-closing and positive locking. In contrast to a purely positive locking device, the positive locking device cannot be disengaged or disengaged by pressing on the sash of the window. To do this, the handle element must be activated actively, against the spring force of the return spring.

The spring force of the return spring is designed to be sufficiently strong that it can return the grip element to the grip position B. In order to keep the path as short as possible, the handle position B is preferably arranged between the handle position A and the handle position C, and preferably still closer to the handle position C than to the handle position A.

If the handle element has an elongated olive or handle, this is preferably oriented vertically in the handle position A and preferably horizontally in the handle position B. In order to move the grip element from grip position A to grip position B, the olive or the handle must therefore be rotated by 90 °. In order to move from the handle position B to the handle position C, the handle element must be rotated further in the same direction of rotation, but preferably by less than 90 °, further preferably by less than 60 °. For example, the fitting can be designed such that a rotation of 45 ° is sufficient to move the grip element from grip position B to grip position C.

According to a preferred embodiment of the invention, the restoring spring is directly or indirectly operatively connected to the gear rod, so that the restoring force of the restoring spring can be transmitted to the handle element via the gear rod. The restoring force of the restoring spring is preferably converted into a restoring moment, since the operative connection between the grip element and Gear rod is preferably such that a rotational movement of the handle element leads to a displacement of the gear rod or a displacement of the gear rod leads to a rotational movement of the handle element. A corresponding operative connection between the grip element and the gear rod can be established, for example, via a nut gear.

The restoring force required to reset the grip element can be achieved with the aid of a single return spring. In order to reduce the space requirement, only a single return spring is therefore preferably provided. The one return spring is preferably arranged separately from the two locking devices on the gear rod or on a gear rod extension connected to the gear rod, so that there is a direct or indirect operative connection between the return spring and the gear rod.

For example, the return spring can be arranged in the extension of the gear rod. For this purpose, one end of the return spring is preferably connected to one end of the gear rod or one end of a gear rod extension. In this case, the direction of movement of the gear rod or the gear rod extension corresponds to the tensioning direction of the return spring. This means that the return spring is tensioned when the gear rod or the gear rod extension is moved by actuating the handle element.

Alternatively, it is proposed that the return spring be arranged parallel to the direction of movement of the gear rod or a gear rod extension. The parallel arrangement also ensures that the return spring is tensioned by a movement of the gear rod or the gear rod extension. In addition, the parallel arrangement has the advantage that the position of the return spring on the gear rod or on the gear rod extension is largely freely selectable and can thus be optimally adapted to the respective installation space conditions.

The return spring is preferably tensioned when the handle element is transferred from the handle position B to the handle position C. The tensioning of the return spring leads to an automatic return of the handle element to the handle position B as soon as it is released.

The return spring is advantageously designed as a tension spring, in particular as a coil tension spring. The tension spring or screw tension spring has the advantage that it does not require any guidance, since - unlike, for example, a helical compression spring - there is no fear of buckling under load.

Furthermore, it is proposed that the at least one spring catch of the second locking device is operatively connected to the gear rod and / or to a gear rod extension. This means that the spring catch can also be operatively connected directly or indirectly to the gear rod. An active connection with the handle element is in turn established via the direct or indirect operative connection to the gear rod. The second locking device can thus be deactivated by actuating the handle element.

The position of the at least one spring catch can largely be chosen freely. Furthermore, several spring catches can be arranged evenly distributed, which has proven to be an advantage, particularly for large window sashes.

If a gear rod extension is provided, it is preferably aligned at an angle to the gear rod and connected to it via a deflection device. This enables the at least one spring catch to be arranged in a corner with respect to the gear rod, so that the spring catch does not necessarily have to be arranged in the region of a main closing edge of a window sash, but also in the region of a secondary closing edge can. The main closing edge of a wing is usually defined by the position of the handle element. These are usually connected by two secondary closing edges, each of which runs perpendicular to the main closing edge in the case of a rectangular wing. If at least one spring catch is arranged in the area of at least one secondary closing edge, this area can also be additionally secured by a positive locking. This is particularly useful if the window sash has a certain width.

As already mentioned, the return spring can be arranged in an extension of the gear rod at one end of the gear rod or on a gear rod extension connected to the gear rod. If the gear rod extension is connected to the gear rod via a deflection device and is therefore arranged at an angle to the gear rod, "in extension" of the gear rod can also mean that the return spring is oriented at an angle to the gear rod.

According to a preferred embodiment of the invention, the second locking device comprises at least two spring catches, which are operatively connected to different gear rod extensions, each connected to the gear rod via a deflection device. In this arrangement, two secondary closing edges of a wing can each be provided with at least one spring catch, for example two secondary closing edges opposite one another on the wing, in particular an upper and a lower secondary closing edge. The spring catches located opposite one another on the secondary closing edges of a wing achieve an essentially symmetrical and thus optimal guard locking of the wing.

Furthermore, it is proposed that at least one pin of the first locking device is arranged at a distance from the at least one spring catch of the second locking device and the distance through Actuation of the gear is changeable. That is to say that the first and the second locking device can be actuated independently of one another, for example to deactivate the first locking device while the second locking device remains activated or to deactivate the second locking device while the first locking device remains deactivated.

For this purpose, the at least one pin of the first locking device is preferably connected to the transmission rod or to a transmission rod extension in a fixed or fixed position, while the spring catch is connected or operatively connected to the transmission in such a way that the transmission rod and / or the transmission rod extension can be moved without actuating the spring catch. This is particularly advantageous if the handle element is transferred from the handle position A to the handle position B in order to deactivate the first locking device. The second locking device then remains activated. However, if the handle element is transferred from the handle position B to the handle position C, an active connection of the spring catch is made with the gear rod and / or the gear rod extension, for example via a driver and / or a stop, so that the gear rod and / or the gear rods -Extension carries the spring catch to also deactivate the second locking device.

The distance between the at least one pin and the at least one spring catch, which can be changed by means of the gear mechanism, can be measured along a single closing edge of the wing, and also cornerwise along a first and a second closing edge.

However, at least one pin of the first locking device and at least one spring catch of the second locking device on the same closing edge, that is to say the main closing edge or secondary closing edge, are preferred Wing arranged. Since the spring catch only has an additional locking function, an optimal seal can be achieved by the at least one pin on the same closing edge when the first locking device is activated. This is especially true if the wing is comparatively high and / or wide. Particularly preferably, a plurality of pins of the first locking device are arranged distributed over the main closing edge and at least one secondary closing edge of the leaf, so that an optimal tight closure is achieved all around. The pins are then actuated via the gear rod and at least one gear rod extension.

According to a preferred embodiment of the invention, the spring catch comprises a locking element which is mounted in a reciprocating manner and is preloaded by means of the spring force of a spring and which can be brought into engagement with a locking receptacle. The locking element can in particular be designed analogously to a latch in a door lock. In this case, the bolt catch takes over the function of the striking plate. If the locking element engages with the locking receptacle, a positive connection is achieved, which preferably acts in the opening direction of the leaf and thus prevents unintentional or unauthorized opening. In this respect, the locking element is similar to the case of a door lock.

The locking element preferably has a run-up slope that faces the lock receptacle, so that when the run-up slope strikes the lock receptacle, the locking element is pushed back against the biasing force of the spring. This facilitates the production of the positive connection and at the same time promotes independent closing. As an alternative or in addition, a run-up slope can be formed in the area of the bolt receptacle.

The latch holder is preferably formed within the catch holder. In this way, a double positive connection can be produced. A first positive locking is achieved when the wing is closed by the Spring catch engages in the catch holder. A second positive connection is then achieved in that the locking element falls into the locking receptacle. While the second form fit acts in the opening direction of the wing, the first form fit preferably acts perpendicularly to it, that is to say in the plane of the wing.

Furthermore, it is proposed that the spring catch comprises a housing in which the spring-loaded locking element is mounted to move back and forth and is supported on the housing via the spring. The locking element can be guided via the housing. The locking element is preferably accommodated in the housing in such a way that the section to be brought into engagement with the locking receptacle, preferably the section with the run-on slope, protrudes from the housing. In order to establish the positive connection with the bolt receptacle, the locking element is first pushed further into the housing of the spring catch against the spring force of the spring that biases the locking element, and then then falls into the bolt receptacle.

If the bolt receptacle is formed within the catch receptacle, the spring catch must first be brought into engagement with the catch receptacle. Only then can the locking element be brought into engagement with the locking receptacle. In order to bring the spring catch into engagement with the catch holder, the outer contour of the housing is preferably adapted to the inner contour of the catch holder.

It is also proposed that the spring catch is connected to a faceplate of the transmission via the housing. The faceplate is usually used to cover a gear rod and / or a gear rod extension of a gear. This means that the faceplate is placed on the outside of the sash. The faceplate is therefore particularly well suited for the arrangement and attachment of the spring catch. In contrast to the gear rod and / or the gear rod extension, the faceplate also does not cause any movements an actuation of the handle element, so that the position of the spring catch relative to the catch receptacle does not change. This ensures that when the wing is closed, the spring catch hits the catch holder that is fixed to the frame. For connection to the gearbox, for example, the housing of the spring catch can be fastened to the faceplate by means of a screw connection.

Since the position of the housing of the spring catch is preferably unchangeable, the locking element must be moved relative to the housing in order to deactivate the second locking device. This presupposes that there is an operative connection of the locking element with the transmission.

In a further development of the invention, it is therefore proposed that the locking element of the spring catch has a guide pin which extends perpendicular to the direction of movement of the locking element and engages in a guide of the transmission. The necessary operative connection for actuation, in particular for deactivating the spring catch or the second locking device can then be established via the guide pin engaging in the guide when the grip element is transferred from the grip position B to the grip position C.

The guide of the gear, in which the guide pin engages, is preferably designed as an elongated hole, so that the operative connection between the spring catch and the gear is only established in two ways. A deactivation of the spring catch or the second locking device is preferably only desired when the handle element is brought from the handle position B to the handle position C. The execution of the guide as an elongated hole ensures the required degrees of freedom.

The operative connection between the spring catch and the gear is preferably achieved by a stop edge that delimits the guide. Got it the guide pin for bearing against the stop edge, the locking element of the spring catch, which has the guide pin, is actuated by the gear or carried by the gear rod and / or the gear rod extension which forms the guide. Depending on the specific position of the spring catch in relation to the handle element, the locking element is pulled or pressed against the spring force of the spring biasing the locking element out of the locking receptacle.

If the locking element having the guide pin is accommodated at least in sections in a housing of the spring catch and / or the gear rod or gear rod extension, which forms the guide, is covered by a faceplate, the effective connection between the spring catch and the gear must be made on the locking element arranged guide pins are designed and arranged such that it extends through the housing and / or the faceplate. The housing and / or the faceplate therefore preferably has a recess through which the guide pin can be guided. The recesses are preferably designed as an elongated hole, so that it is further ensured that the guide pin comes to rest against the stop surface of the guide formed in the gear rod or in the gear rod extension.

The advantages of the fitting according to the invention are particularly evident in connection with a window. A window, in particular a rotating casement window, is therefore also proposed, which comprises a window frame and a sash that is rotatable relative to the window frame for opening and closing the window and a fitting according to the invention arranged between the window frame and the sash. The window is upgraded to a fire protection window by the fitting according to the invention, which not only meets the current tightness requirements according to the current Energy Saving Ordinance (EnEV), but also meets applicable fire protection requirements.

The fitting according to the invention enables the realization of a self-closing window, which is held in a form-fitting manner in the closed state. This is because the handle element provided for deactivation is automatically reset by the transmission to a handle position in which the deactivation of the second locking device is canceled or the second locking device is activated. The second locking device cannot be deactivated without the active actuation of the grip element again.

As with a self-closing smoke protection door, the window can also be equipped with a closer that pulls the sash into the frame. This applies in particular if the sash of the window equipped with the fitting according to the invention is only designed as a sash which is connected to the frame only via pivot bearings. Instead of the upper pivot bearing usually provided on a rotating / tilting wing, which enables the tilting movement of the wing, the closer can then be installed.

In the window according to the invention, the handle element, the gear and the at least one pin of the first locking device and the at least one spring catch of the second locking device are preferably connected to the sash. The peg receptacle and the catch receptacle, on the other hand, are arranged opposite one another on the frame. All fixed immovable parts of the fitting are therefore arranged on the frame and all moving parts on the sash.

The fitting or the fitting parts are preferably arranged in a fold between the frame and the sash. The fitting or the fitting parts are designed in such a way that they hardly build up and / or can be embedded at least in sections in the frame or the sash. For example, a circumferential groove for receiving the gear rod and / or the gear rod extension can be formed in the rebate area of the wing. The groove can then be closed using a faceplate. Alternatively or in addition, the catch holder of the second locking device can be inserted into the frame. The installation space required by the fitting can be reduced to a minimum by these measures - individually or in combination.

In a preferred embodiment of the invention, the grip element is arranged in the region of a vertically running main closing edge of the leaf, which is arranged opposite an edge in the region in which the leaf is rotatably mounted on the frame. The fitting in the area of the main closing edge can cooperate with corresponding receptacles which are arranged on the frame, on a fixed post between the wing and another wing or on a sash. Because the window according to the invention does not necessarily have to be a single-leaf window.

Furthermore, at least one spring catch of the provided second locking device is preferably arranged in the area of a secondary closing edge of the wing arranged at an angle to the main closing edge. Particularly preferably, the two secondary closing edges of the wing each have at least one spring catch. The sash is thus locked at several points, in particular at opposite edges, so that the locking forces are evenly distributed and the sash lies as flat as possible on the frame.

Fig. 1

eine Explosionsdarstellung eines erfindungsgemäßen Fensters mit einem erfindungsgemäßen Beschlag gemäß einer ersten bevorzugten Ausführungsform,

Fig. 2

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des oberen Federschnäppers in der Griffstellung B,

Fig. 3

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des oberen Federschnäppers in der Griffstellung C,

Fig. 4

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des oberen Federschnäppers in der Griffstellung A,

Fig. 5

einen vergrößerten Ausschnitt der Fig. 1 im Bereich der Rückstellfeder,

Fig. 6

eine Draufsicht auf einen Teil des Getriebes mit separater Rückstellfeder,

Fig. 7

eine Draufsicht auf eine Schnäpperaufnahme,

Fig. 8

eine Schnittansicht der Schnäpperaufnahme der Fig. 7,

Fig.9

eine Schnittansicht eines mit der Schnäpperaufnahme der Figuren 7 und 8 zusammenwirkenden Federschnäppers,

Fig. 10

eine perspektivische Darstellung einer Schnäpperaufnahme, eines Federschnäppers, einer Stulpschiene und einer Getriebestangen-Verlängerung,

Fig. 11

a) und b) jeweils eine Draufsicht auf eine Schnäpperaufnahme mit Federschnäpper, a) bei ausgefahrenem Riegelelement und b) bei zurückgezogenem Riegelelement,

Fig. 12

a) eine Seitenansicht des Federschnäppers der Fig. 11 und b) eine Seitenansicht der Schnäpperaufnahme der Fig. 11,

Fig. 13

eine Seitenansicht eines Federschnäppers und eine Draufsicht auf eine Stulpschiene,

Fig. 14

eine perspektivische Darstellung eines an einer Stulpschiene befestigten Federschnäppers,

Fig. 15

eine weitere perspektivische Darstellung des Federschnäppers der Fig. 14,

Fig. 16

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des unteren Federschnäppers,

Fig. 17

eine Schnittansicht der zugehörigen Schnäpperaufnahme,

Fig. 18

eine Draufsicht auf die zugehörige Schnäpperaufnahme,

Fig. 19

eine Seitenansicht der unteren Umlenkeinrichtung einschließlich der anschließenden Getriebeteile sowie eine Draufsicht auf die zugehörige Stulpschiene,

Fig. 20

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des unteren Federschnäppers in der Griffstellung B,

Fig. 21

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des unteren Federschnäppers in der Griffstellung A,

Fig. 22

einen vergrößerten Ausschnitt der Fig. 1 im Bereich des unteren Federschnäppers in der Griffstellung C,

Fig. 23

eine Explosionsdarstellung eines erfindungsgemäßen Fensters mit einem erfindungsgemäßen Beschlag gemäß einer weiteren bevorzugten Ausführungsform,

Fig. 24

a) einen vergrößerten Ausschnitt der Fig. 23 im Bereich der Rückstellfeder, b) eine Explosionsdarstellung der Rückstellfeder,

Fig. 25

eine perspektivische Darstellung der Rückstellfeder in der Griffstellung A,

Fig. 26

eine perspektivische Darstellung der Rückstellfeder in der Griffstellung B und

Fig. 27

eine perspektivische Darstellung der Rückstellfeder in der Griffstellung C.

Preferred embodiments of the invention are described below with reference to the accompanying drawings. These show:

Fig. 1

2 shows an exploded view of a window according to the invention with a fitting according to the invention according to a first preferred embodiment,

Fig. 2

an enlarged section of the Fig. 1 in the area of the upper spring catch in handle position B,

Fig. 3

an enlarged section of the Fig. 1 in the area of the upper spring catch in handle position C,

Fig. 4

an enlarged section of the Fig. 1 in the area of the upper spring catch in handle position A,

Fig. 5

an enlarged section of the Fig. 1 in the area of the return spring,

Fig. 6

a plan view of a part of the transmission with a separate return spring,

Fig. 7

a top view of a snap catch,

Fig. 8

a sectional view of the catch of the Fig. 7 ,

Fig. 9

a sectional view of a with the catch of the Figures 7 and 8 cooperating springcatcher,

Fig. 10

a perspective view of a catch holder, a spring catch, a faceplate and a gear rod extension,

Fig. 11

a) and b) in each case a top view of a snap catch with spring catch, a) with the locking element extended and b) with the locking element withdrawn,

Fig. 12

a) a side view of the springcatcher Fig. 11 and b) a side view of the catch receptacle of the Fig. 11 ,

Fig. 13

a side view of a spring catch and a plan view of a faceplate,

Fig. 14

1 shows a perspective illustration of a spring catch attached to a faceplate,

Fig. 15

a further perspective view of the spring snap Fig. 14 ,

Fig. 16

an enlarged section of the Fig. 1 in the area of the lower spring catch,

Fig. 17

2 shows a sectional view of the associated snap catch,

Fig. 18

a plan view of the associated snap catch,

Fig. 19

a side view of the lower deflection device including the subsequent gear parts and a plan view of the associated faceplate,

Fig. 20

an enlarged section of the Fig. 1 in the area of the lower spring catch in handle position B,

Fig. 21

an enlarged section of the Fig. 1 in the area of the lower spring catch in handle position A,

Fig. 22

an enlarged section of the Fig. 1 in the area of the lower spring catch in handle position C,

Fig. 23

2 shows an exploded view of a window according to the invention with a fitting according to the invention according to a further preferred embodiment,

Fig. 24

a) an enlarged section of the Fig. 23 in the area of the return spring, b) an exploded view of the return spring,

Fig. 25

a perspective view of the return spring in the handle position A,

Fig. 26

a perspective view of the return spring in the handle position B and

Fig. 27

a perspective view of the return spring in the handle position C.

Detailed description of the drawings

That in the Fig. 1 Window 2 shown comprises a movable wing 22 and a fixed frame 21, the frame parts of which are shown individually and pulled apart for a better overview. Various views of the frame parts are also shown, in such a way that they overlap. In addition, the respective profile cross sections are shown in the views of all frame parts, including those of the wing 22.

The wing 22 is rotatably mounted on the frame 21 via pivot bearing 32. The wing 22 can thus be rotated or pivoted about the common axis of rotation of the pivot bearings 32 to open the window 2. The window 2 shown does not have a tilting function, so that it is a pure swing window.

To open the window 2, a handle element 10 is attached to the wing 22 (in the Fig. 1 not shown). The grip element 10 defines a main closing edge 23 of the window 2, which is arranged opposite an edge 24, which is assigned to the pivot bearings 32. Between the main closing edge 23 and the edge 24, an upper and a lower secondary closing edge 25 extend. In the area of the main closing edge 23 and the secondary closing edges 25, parts of a fitting 1 are arranged, by means of which the window 2 can be locked when the sash 22 is closed. For this purpose, the fitting has a first locking device 4 and a second locking device 5 and a gear 3 for actuating the locking devices 4, 5. The gear 3 in turn can be actuated by means of the handle element 10.

To actuate the gear 3, the handle element 10 is operatively connected via a nut gear 33 to a gear rod 11 of the gear 3 in such a way that a rotary movement of the handle element 10 leads to a displacement of the gear rod 11 in the direction of its longitudinal extent. Since in the present case the gear rod 11 is connected at its two ends to a gear rod extension 13 via a deflection device 14, these are also displaced. If, for example, the grip element 10 is turned clockwise, the gear rod 11 moves upwards, while the upper gear rod extension 13 moves to the right and the lower gear rod extension 13 moves to the left. When the handle element 10 rotates counterclockwise, the reverse is true, that is to say that the gear rod 11 moves downward, while the upper gear rod extension 13 moves to the left and the lower one Move gear rod extension 13 to the right. Via the movement of the gear rod 11 or the gear rod extensions 13, pins 7 of the first locking device 4 fastened thereon can be brought into engagement with pin receptacles 6 which lie opposite the pins 7 on the frame 21. In addition, the second locking device 5 can be actuated by means of the transmission 3, which in the present case comprises a first spring catch 9 arranged on the upper secondary closing edge 25, a second spring catch 9 arranged on the lower secondary closing edge 25 and snap catches 8 located opposite each on the frame 21.

The structure of the second locking device 5 is based on the Figures 7 to 9 as well as 11 and 12 explained.

In the Figures 7 and 8 the catch holder 8 is shown. It has a basic recess 34 for receiving a housing 17 of the spring catch 9. The inner contour of the basic recess 34 is adapted to the outer contour of the housing 17. At its two ends, the basic recess 34 is each expanded by a locking receptacle 16 for a locking element 15 of the spring catch 9. A start slope 27 is in front of the bolt receptacles 16. The catch holder 8 shown is constructed symmetrically. The attachment takes place on the frame 21, preferably the catch receptacle 8 being flush with the frame 21 (see Fig. 8 ). The attachment can be done for example by means of screws. To receive the screws 34 screw receptacles 31 are arranged on both sides of the basic recess.

The spring catch 9 is arranged opposite the catch catch 8 on the wing 22. In contrast to the catch holder 8, the spring catch 9 is not constructed symmetrically (see Fig. 9 ). This is because the locking element 15 protrudes from the housing 17 on one side in order to come into engagement with a locking receptacle 16 of the catch holder 8. The locking element 15 is to and fro for this movably received in the housing 17 and supported on the housing 17 by a spring (not shown).

Fig. 11a shows an example of an activated spring catch 9. The spring catch 9 is accommodated in the catch receptacle 8 and the locking element 15 engages in the locking receptacle 16. The end of the locking element 15 which engages in the locking receptacle 16 has a run-up bevel 26 which interacts with the corresponding run-up bevel 27 of the catch receptacle 8.

Fig. 11b shows the same spring catch 9, but in the deactivated state, since the locking element 15 is fully retracted into the housing 17, so that the locking engagement is released. The retraction (or pushing back) of the locking element 15 is effected with the aid of the gear 3.

Again Fig. 12a can be seen, the locking element 15 has on its underside a guide pin 19 which is guided through the housing 17. The corresponding recess in the housing 17 is preferably designed as an elongated hole so that the locking element 15 can move back and forth. In the Fig. 12b the associated catch receptacle 8 is shown again.

The guide pin 19 guided through the housing 17 engages in a guide 20 of the gear rod extension 13, the guide pin 19 also passing through a faceplate 18 which serves to cover the gear rod extension 13 (see Figures 9 , 10th and 13 ). Analogous to the housing 17, the faceplate 18 also has a recess 28 in the form of an elongated hole for the penetrating guide pin 19 (see Figures 10 and 13 ). The faceplate 18 is not moved when the gear 3 is actuated, so that the housing 17 of the spring catch 9 can be fastened to it, for example by means of screws. For this purpose, the faceplate 18 and the housing 17 are equipped with corresponding screw receptacles 31 (see Fig. 13 ).

Like especially the Fig. 10 can be seen, the guide 20 formed in the gear rod extension 13 has a stop edge 29 for the guide pin 19 of the reciprocating locking element 15. In contact with the stop edge 29, the guide pin 19 and thus the locking element 15 are carried along when the gear rod extension 13 moves against the spring force of the spring biasing the locking element 15 (not shown).

Based on Figures 2 to 4 , each of which shows the upper spring catch 9, the operation of the second locking device 5 is explained below.

According to the Fig. 2 the grip element 10 in a grip position B, the first locking device 4 is deactivated, that is to say that the pins 7 are not in engagement with the pin receptacles 6, while the second locking device 5 is activated (see also Fig. 14 ). This is because the locking element 15 is extended and is therefore in engagement with the locking receptacle 16 (provided that the sash 22 is closed or abuts the frame 21).

If the grip element is transferred from the grip position B to the grip position C, as exemplified in FIG Fig. 3 shown, the gear rod 11 moves down, while the gear rod extension 13 moves to the left. During this movement, the locking element 15 is pulled into the housing 17 of the spring catch 9 and the second locking device 5 is deactivated (see also Fig. 15 ). At the same time, a return spring 12 is tensioned, which is arranged at the end in an extension of the gear rod extension 13. The tensioned return spring 12 has the effect that when the handle element 10 is released, it is pulled back into the handle position B (see arrow in FIG Fig. 3 ), so that the second locking device 5 is automatically reactivated.

In order to activate the first locking device 4, the grip element 10 according to FIG Fig. 4 transferred from the handle position B to the handle position C, which corresponds to a 90 ° rotation of the handle element 10. The gear rod 11 moves upwards, the gear rod extension 13 moves to the right. The entrained pins 7 are brought into engagement with the pin receptacles 6 (see arrows). The second locking device 5 remains - unchanged - activated.

Like that Figures 5 and 6 can be seen, in the illustrated embodiment, the return spring 12 is arranged in the region of the upper secondary closing edge 25 and designed as a coil tension spring. It is not absolutely necessary to arrange the return spring 12 in the area of the upper secondary closing edge 25 and / or to design it as a helical tension spring. However, the design as a helical tension spring has the advantage that the return spring 12 - in contrast to a helical compression spring - cannot buckle under tension or load. It depends on the direction of movement of the gear rod 11 and the gear rod extensions 13 where the coil tension spring is to be arranged in the gear 3. The arrangement must be such that it is ensured that the return spring 12 is tensioned when the second locking device 5 is deactivated. Only then can the second locking device 5 be regarded as "self-closing" in the sense of the fire protection regulation.

Based on Figures 16 to 22 , each of the lower spring catch 9 of the window 2 Fig. 1 show, the operation of the second locking device 5 is explained again, since it is important to point out small differences.

Like especially the Fig. 16 can be seen, the orientation of the lower spring catch 9 is changed. Because the locking element 15 protrudes from the housing 17 on the left side. Since the catch holder 8 is symmetrical the same catch receptacle 8 can be used both for the upper spring catch 9 and for the lower spring catch 9. This therefore does not differ from the catch holder 8 for the upper spring catch 9 (see Figures 17 and 18 ).

Fig. 19 shows that the gear rod 11 is connected at its lower end via a deflection device 14 to a gear rod extension 13, so that when the gear rod 11 moves downward, the gear rod extension 13 is shifted to the right. The same applies to the pins 7 of the first locking device 4 arranged on the gear rod extension 13. In the faceplate 18 covering the gear rod extension 13, recesses 30 for this purpose are formed analogously to the recess 28 for the guide pin 19 of the locking element 15.

Is the grip element 10 according to the Fig. 20 in the handle position B, the first locking device 4 is deactivated, while the second locking device 5 is activated, since the locking element 15 of the spring catch 9 is extended.

According to the Fig. 21 transfers the handle element 10 from the handle position B to the handle position A, the gear rod extension 13 moves to the left and with it the pins 7, so that these are brought into engagement with the pin receptacles 6 (in the Fig. 21 not shown). The second locking device 5 is not actuated because the guide pin 19 of the locking element 15 does not come to rest against the stop edge 29 of the guide 20 formed in the gear rod extension 13. Thus, a distance a between the pin 7 and the spring catch 9 increases.

However, according to the Fig. 22 the handle element 10 transferred to the handle position C, the gear rod extension 13 moves to the right and with it the Pin 7, so that the distance a becomes smaller again. At the same time, the guide pin 19 of the locking element 15 comes to rest against the stop edge 29 of the guide 20, so that the locking element 15 is carried along and pressed into the housing 17 of the spring catch 9. In the handle position C, both locking devices 4 and 5 are thus deactivated. In this respect, the functioning of the lower spring catch 9 corresponds to that of the upper one. In contrast to the upper spring catch 9, however, the lower spring catch 9 is not pulled into the housing 17 by the gear 3, but rather is pressed.

In the Fig. 23 is an exploded view of another window 2 with a fitting 1 according to the invention, which differs from the fitting 1 described above in particular by the position of the return spring 12. The return spring 12 is not arranged this time in the area of a secondary closing edge 25, but in the area of the main closing edge 23, in a recess 42 of the leaf 22. In this way, space is created in the area of the secondary closing edge 25 for a closer 35, which with the window open 2 automatically transfers the sash 22 back into the closed position, so that the window 2 is self-closing.

The window 2 of the Fig. 23 is analogous to window 2 Fig. 1 shown, that is, that also in the Fig. 23 overlay different views or profile cross sections are shown in the views.

The fitting 1 of the window 2 of the Fig. 23 again has a gear 3 with a gear rod 11 and gear rod extensions 13 connected at each end to the gear rod 11 via a deflection device 14. The gear rod 11 and the gear rod extensions 13 are equipped with pins 7 of a first locking device 4, which can be brought into engagement with pin receptacles 6 of the frame 21. The gear rod extensions 13 also each have a spring catch 9 of a second locking device 5, which engages with a catch holder 8 of the Frame 21 can be brought. The functioning of the two locking devices 4, 5 corresponds to that of the window 2 described above, so that in this regard the description of the 1 to 22 is referred. In the following, only the changed arrangement and configuration of the return spring 12 will be discussed.

Like the one in particular Figures 12a) and 12b ) can be seen, the return spring 12 received in the recess 42 of the wing 22 is designed as a helical tension spring. A first end of the return spring 12 is operatively connected to the transmission rod 11 via a fastening element 36, which in the present case is designed as a screw, in such a way that the return spring 12 is carried along when the transmission rod 11 moves. In this case, however, the return spring 12 is only tensioned when the grip element 10 moves out of the grip position B (see Fig. 26 ) in the handle position C (see Fig. 27 ) is transferred. On the other hand, the return spring 12 is fixed on the wing 21 via a guide rail 37 and a fastening element 39 which engages in an elongated hole 40 of the guide rail 37, so that the return spring 12 and the guide rail 37 can move relative to the wing 21. This ensures that when the handle element 10 moves from the handle position A (see Fig. 25 ) in handle position B (see Fig. 26 ) there is no tensioning of the return spring 12, only the first locking device 4 is deactivated. The return spring 12 is only tensioned when the fastening element 39 comes to rest on the guide rail 37 (see Figures 26 and 27 ).

In the slot 40 of the guide rail 37 also engages a guide pin 38 which is passed through an elongated hole 41 of the gear rod 11 and is fixedly connected to a cover rail 18 covering the gear rod 11. The position of the guide pin 38 is therefore immutable.

Reference list

1. 1 fitting
2. 2 Windows
3. 3 gears
4. 4 locking device
5. 5 locking device
6. 6 pin holder
7. 7 cones
8. 8 snap catch
9. 9 spring catches
10. 10 grip element
11. 11 gear rod
12. 12 return spring
13. 13 gear rod extension
14. 14 deflection device
15. 15 locking element
16. 16 transom mount
17. 17 housing
18. 18 faceplate
19. 19 guide pins
20. 20 leadership
21. 21 frame
22. 22 wings
23. 23 main closing edge
24. 24 edge
25. 25 secondary closing edge
26. 26 run-up slope
27. 27 bevels
28. 28 recess
29. 29 stop edge
30. 30 recess
31. 31 screw holder
32. 32 pivot bearings
33. 33 nut gear
34. 34 basic recess
35. 35 NO contacts
36. 36 fastener
37. 37 guide rail
38. 38 guide pin
39. 39 fastener
40. 40 slot
41. 41 slot
42. 42 recess

Claims (15)

Fitting (1) for a window (2), in particular a casement window, comprising a gear (3), a first locking device (4) which can be actuated by the gear (3) and a second locking device (5) which can be actuated by the gear (3), wherein the first locking device (4) has at least one pin (7) that can be brought into engagement with a pin receptacle (6) and the second locking device (5) has at least one spring catch (9) that can be brought into engagement with a catch receptacle (8), further comprising a grip element ( 10), which is operatively connected to actuate the gear (3) with a gear rod (11) of the gear (3) and can be moved in at least three handle positions (A, B, C), with both locking devices (4, 5) are activated, only the second locking device (5) is activated in the handle position (B) and both locking devices (4, 5) are deactivated in the handle position (C),
characterized in that the gear (3) comprises at least one return spring (12) for automatically returning the handle element (10) from the handle position (C) to the handle position (B). Fitting (1) according to claim 1,
characterized in that the restoring spring (12) is directly or indirectly operatively connected to the gear rod (11) so that the restoring force of the restoring spring (12) can be transmitted to the handle element (10) via the gear rod (11). Fitting (1) according to claim 1 or 2,
characterized in that the return spring (12) is arranged in the extension of the gear rod (11) or parallel to the direction of movement of the gear rod (12). Fitting (1) according to one of the preceding claims,
characterized in that the return spring (12) is designed as a tension spring, in particular as a coil tension spring. Fitting (1) according to one of the preceding claims,
characterized in that the at least one spring catch (9) of the second locking device (5) is operatively connected to the gear rod (11) and / or to a gear rod extension (13), which is preferably aligned at an angle to the gear rod (11) and with it a deflection device (14) is connected. Fitting (1) according to claim 5,
characterized in that the second locking device (5) comprises at least two spring catches (9) which are operatively connected to different gear rod extensions (13), each connected to the gear rod (11) via a deflection device (14). Fitting (1) according to one of the preceding claims,
characterized in that at least one pin (7) of the first locking device (4) is arranged at a distance (a) from the spring catch (9) and the distance (a) can be changed by actuating the gear (3). Fitting (1) according to one of the preceding claims,
characterized in that the spring catch (9) comprises a locking element (15) which is mounted in a reciprocating manner and is biased by the spring force of a spring and which can be brought into engagement with a locking receptacle (16) which is preferably formed within the catch holder (8) . Fitting (1) according to claim 8,
characterized in that the spring catch (9) comprises a housing (17) in which the spring-loaded locking element (15) is mounted to move back and forth and is supported on the housing (17) by the spring. Fitting (1) according to claim 9,
characterized in that the spring catch (9) is connected via the housing (17) to a faceplate (18) of the transmission (3). Fitting (1) according to one of claims 8 to 10,
characterized in that the spring-preloaded locking element (15) of the spring catch (9) has a guide pin (19) which extends perpendicular to the direction of movement of the locking element (15) and engages in a guide (20) of the transmission (3), preferably the guide pin (19) passes through the housing (17) and / or the faceplate (18). Window (2), in particular a casement window, comprising a window frame (21) and a window (22) which can be rotated relative to the window frame (21) for opening and closing the window (2) and one between the window frame (21) and the window (22) arranged fitting (1) according to any one of the preceding claims. Window (2) according to claim 12,
characterized in that the handle element (10), the gear (3) and the at least one pin (7) of the first locking device (4) and the at least one spring catch (9) of the second locking device (5) are connected to the wing (22) are, while the pin receptacle (6) and the catch holder (8) are arranged opposite one another on the frame (21). Window (2) according to claim 12 or 13,
characterized in that the grip element (10) is arranged in the region of a vertically running main closing edge (23) of the leaf (22), which is arranged opposite an edge (24) in the region of which the leaf (22) rotates on the frame (21) is stored. Window (2) according to one of claims 12 to 14,
characterized in that at least one spring catch (9) of the second locking device (5) is arranged in the region of a secondary closing edge (25) of the leaf (22) arranged at an angle to the main closing edge (23).

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