DE102008032750B4 - parallel opening - Google Patents

Abstract

The window has fittings (12) arranged at opposite vertical sides of a wing frame (2). The wing frame and a stick frame (1) move relative to each other by actuating an actuating unit, so that the window is openable and closable. An additional fitting has a lever arm, which is pivotably supported at the stick frame by a pivoting support and is pivotable at the wing frame by another pivoting support. The lever arm is slidably supported at the wing frame along a displacement direction (V). Another actuating unit actuates the additional fitting by applying force to the latter actuating unit.

Description

The present invention relates to a Parallelausstellfenster.

A fitting for a Parallelausstellfenster is for example from the DE 197 41 728 A1 known. In this known fitting comprises a release mechanism at least four acting on a window sash and attached to the window frame Ausstellscheren. Each of the Ausstellscheren has a release lever, a control lever and a drive lever. The release lever connects window sash and window frame with each other and is rotatably mounted at a first end and rotatably mounted at a second end and slidably. The control lever is rotatably coupled to the deployment lever and connected at one end to the window frame. The mechanism is actuated by a drive lever which is rotatably coupled to the Ausstellscheren.

However, the maximum load capacity of such a pop-up scissors mechanism is very limited in terms of maximum blade weight and maximum wind load at which the window is still functional. In addition, an operating force acting in the closing and opening direction varies greatly and is relatively low, in particular in the vicinity of the closed position or in the closed position. Therefore, it is difficult to press the window with a sufficient closing force against the seal to ensure a tight sealing of the window.

DE 202 20 865 U1 discovery GB 2 323 407 A show similar mechanisms of a Parallelausstellfensters.

Finally describes CH 75 417 A a Parallelausstellfenster with an X-scissors as fitting, in which in each case a joint of a lever is pivotable and the respective arranged at the opposite end of the lever pivotally and slidably sliding.

Thus, there is a need for an improved paralleling window which avoids the foregoing disadvantages of the prior art. The object of the invention is therefore to provide a window with fitting that is easy to operate and can be produced at low cost and can produce a high closing force for pressing a window seal.

This object is achieved by a window with the features of claim 1. Advantageous developments are defined in the dependent claims.

• – einen Stockrahmen,
• – einen Flügelrahmen und
• – zumindest zwei Beschläge, die an gegenüberliegenden bzw. entgegengesetzten vertikalen Seiten des Flügelrahmens angeordnet sind, wobei jeder Beschlag einen Hebelarm aufweist, welcher -- mittels eines ersten Schwenklagers an dem Stockrahmen schwenkbar gelagert ist, -- mittels eines zweiten Schwenklagers an dem Flügelrahmen schwenkbar und entlang einer Verschiebungsrichtung V am Flügelrahmen verschiebbar gelagert ist und -- eine Betätigungseinrichtung aufweist, welche ausgelegt ist, den Beschlag durch Anlegen einer Kraft an die Betätigungseinrichtung zu betätigen, und wobei jeder Beschlag einen Stützarm aufweist, welcher -- mittels eines dritten Schwenklagers an dem Hebelarm schwenkbar gelagert ist und -- mittels eines vierten Schwenklagers an dem Flügelrahmen schwenkbar gelagert ist, und wobei sich der Stockrahmen und der Flügelrahmen durch Betätigen der Betätigungseinrichtung relativ zueinander bewegen, so dass das Fenster öffenbar und schließbar ist, wobei das Parallelausstellfenster zumindest einen Zusatzbeschlag umfaßt, jeder Zusatzbeschlag einen Hebelarm aufweist, welcher mittels eines ersten Schwenklagers an dem Stockrahmen schwenkbar gelagert ist, -- mittels eines zweiten Schwenklagers an dem Flügelrahmen schwenkbar und entlang der Verschiebungsrichtung V am Flügelrahmen verschiebbar gelagert ist und -- eine Betätigungseinrichtung aufweist, welche ausgelegt ist, den Zusatzbeschlag durch Anlegen einer Kraft an die Betätigungseinrichtung zu betätigen.

According to one aspect, a parallel pop-up window is provided comprising:

• - a floor frame,
• - a sash and
• - At least two fittings, which are arranged on opposite or opposite vertical sides of the sash, each fitting having a lever arm which is - pivotally mounted by means of a first pivot bearing on the floor frame, - pivotable by means of a second pivot bearing on the sash and along a direction of displacement V is slidably mounted on the casement and - has an actuator which is designed to operate the fitting by applying a force to the actuator, and wherein each fitting has a support arm which - by means of a third pivot bearing on the lever arm is pivotally mounted and - is pivotally mounted by means of a fourth pivot bearing on the sash, and wherein the floor frame and the sash move by operating the actuator relative to each other, so that the window can be opened and closed, the Parall elausstellfenster comprises at least one additional fitting, each additional fitting has a lever arm which is pivotally mounted by means of a first pivot bearing on the floor frame, - is pivotally mounted by means of a second pivot bearing on the casement and slidably along the displacement direction V on the casement and - has an actuator , which is designed to actuate the additional fitting by applying a force to the actuator.

The first pivot bearing of the lever arm is pivotally or rotatably mounted on the frame of the window or attached thereto or storable or fastened thereto, which is why the first pivot bearing acting on the lever arm vertically and / or horizontally directed forces (z and / or y Direction), but not around the first pivot axis acting torques, transfers to the floor frame.

In contrast, the lever arm is pivotally and displaceably mounted on the casement by means of the second pivot bearing, ie the lever arm is displaceable along a direction of displacement V on the casement. In this case, the displacement direction V is preferably parallel to one of the longitudinal extensions of the casement, in particular substantially parallel to the z 'direction or to Vertical. Therefore, forces acting on the casement frame can only be transmitted to the lever arm via the second pivot bearing to the extent that only the force component directed perpendicular to the direction of displacement V can be transmitted. In particular, the weight of the sash, however, acts substantially along the direction of displacement V, when the sash is aligned parallel to a vertical building wall. In the event that the sash is inclined to the horizontal, so the displacement direction V has a non-zero angle with respect to the z-direction, such as windows in sloping roofs or skylights, the weight of the sash at least partially on the second pivot bearing be transferred to the lever arm.

The support arm is pivotally mounted by means of the third pivot bearing on the lever arm and by means of the fourth pivot bearing on the casement. Since vertically and / or horizontally directed forces (y- and / or z-direction or y 'and / or z'-direction) can be transmitted to the lever arm by means of this pivot bearing, the weight force of the sash frame by means of the support arm on the lever arm transfer.

The fitting can be actuated by applying a force to the actuating device, so that the first pivot bearing, for example by means of an actuator, such as a crank, a motor, a gear, a worm, a coupling rod, a cable and / or a chain or the like, are pivoted can, wherein the actuating device is particularly preferably arranged on the floor frame or connected to the floor frame. In particular, when the longitudinal extension of the lever arm is parallel to the horizontal (ie, parallel to a plane spanned by the x- / y-directions), when a force is introduced along the z-direction, which in particular corresponds to the direction of displacement V, acts indirectly via the fourth pivot bearing in the lever arm a maximum torque on the first pivot bearing. The opening width of the window substantially corresponds to the length of the lever arm, d. H. the distance between the first and second pivot bearings of the lever arm. Advantageously, the required depth of the fitting or the window to achieve a predetermined opening width essentially determined by the extent of the lever arm in the direction perpendicular or transverse to the longitudinal extent and thus low. Further advantageously, the lever arm can be designed to be correspondingly short in dependence on the desired opening width, so that the lever arm can advantageously absorb or support an increased weight force of the sash frame and / or increased wind forces acting on the sash frame.

In a Parallelausstellfenster the maximum torque acts on the first pivot bearing of the fitting when the window is in the fully open position. The torque is due to the weight of the sash, which acts via the fourth pivot bearing indirectly via the support arm on the lever arm. In the fully open position, the distance between the first and fourth pivot bearings is maximum, so that due to the maximum lever length, the maximum torque is generated at the first pivot bearing (assuming a constant weight). Accordingly, the actuator must be designed so that the maximum torque acting on the first pivot bearing can be overcome with the window fully open. This maximum torque results from a maximum distance of the effective weight of the sash from the first pivot bearing. In other words, this maximum torque results from the product of the weight of the sash with the distance of the first of the fourth pivot bearing.

When the window is closed, however, the distance of the fourth pivot bearing is reduced by the first pivot bearing, so that with a constant operating force now a large proportion of the actuating force, for example, for pressing the sash to the floor frame or to a window seal is available. Such an operating force for opening and closing the sash can be minimized and there is a high proportion of the operating force available for pressing. Thus, the fitting is advantageously used for very heavy window sash and can be produced inexpensively due to the small number of items.

However, depending on the application, the distance of the first of the fourth pivot bearing can also be chosen differently, for example, to provide a minimum distance between the first and fourth pivot bearing when the window is substantially open. In this case, with a constant operating force, a large proportion of the actuating force would be available for the movement of the window sash. Therefore, such a design can be used, for example, when high wind loads occur.

The wing frame described above is not necessarily a closed frame, but includes a filling member for a window and its attachment means for securing the at least one fitting. Particularly preferably, the casement is a window frame in which at least one glass pane is used as a preferred filling element. More preferably, the at least one glass pane can be attached to the casement, for example, by gluing or screwing with the casement, wherein in the case of screwing corresponding holes are formed in the glass sheet. The casement does not have to be completely formed in this preferred case as a frame, but only at the bonding areas. In particular, the window can only have a fitting which is fastened symmetrically in the x-direction on the sash frame in order to support the sash frame in a predetermined manner at one point or support.

In one aspect, the window includes at least two fittings disposed on opposite vertical sides of the sash frame. The vertical sides of the sash are either the two opposite or opposite sides of the sash substantially along the displacement direction V and the z 'direction, ie substantially along the vertical or, as stated above, in roof hatches in Essentially along the horizontal, extend. The vertical sides are spaced from each other substantially along the horizontal extent of the direction, i. H. at the same vertical position or height or with the same z-coordinate. As a result, the weight of the window sash is received in each case via the fourth pivot bearing and introduced via the fitting in the floor frame. By providing two fittings to the window, the sash is supported in a predetermined manner at two points, the fourth pivot bearings.

• – zumindest einen Zusatzbeschlag, wobei jeder Zusatzbeschlag einen Hebelarm aufweist, welcher -- mittels eines ersten Schwenklagers an dem Stockrahmen schwenkbar gelagert ist, -- mittels eines zweiten Schwenklagers an dem Flügelrahmen schwenkbar und entlang der Verschiebungsrichtung V am Flügelrahmen verschiebbar gelagert ist und -- eine Betätigungseinrichtung aufweist, welche ausgelegt ist, den Zusatzbeschlag durch Anlegen einer Kraft an die Betätigungseinrichtung zu betätigen.

In one aspect, the window comprises

• - At least one additional fitting, each additional fitting having a lever arm which is - pivotally mounted by means of a first pivot bearing on the floor frame, - pivotally mounted by means of a second pivot bearing on the casement and along the direction of displacement V on the casement and - a Actuating device which is designed to actuate the additional fitting by applying a force to the actuating device.

The first pivot bearing of the additional fitting is pivotally mounted on the floor frame of the window, while the second pivot bearing is pivotally and slidably mounted on the sash. Since the lever arm is displaceable along the direction of displacement V on the casement, forces acting on the casement frame can only be transmitted to the lever arm via the second pivot bearing, so that only the force component directed perpendicular to the direction of displacement V can be transmitted. Therefore, in particular, the weight force of the sash, which acts substantially along the direction of displacement V, when the sash is aligned parallel to a vertical building wall, substantially not transferred by means of additional fitting in the floor frame.

Advantageously, perpendicular to the direction of displacement V acting tensile and compressive or tilting forces that arise from acting on the sash wind loads and tilting of the sash, transferred to the lever arm of the additional fitting and lead to a relief of the fitting. These forces acting perpendicularly to the direction of displacement V are diverted, on the one hand, into the floor frame and, on the other hand, these forces can be counteracted by applying a force to the actuating device of the additional fitting. For sash, which are inclined to the horizontal, such as in windows parallel to roof slopes, the weight of the sash is at least partially transmitted via the second pivot bearing on the lever arm.

In particular, the window can only have an additional fitting which is fastened symmetrically in the x-direction on the sash frame in order to support the sash frame in the manner described above at one point or to absorb the acting pressure and tilting forces.

Preferably, the window comprises at least two additional fittings arranged on opposite vertical sides of the sash. The vertical sides of the sash are, as described above, either the two opposite sides of the sash substantially along the direction of displacement V and the z'-direction, respectively, substantially along the perpendicular or, as above executed, at roof hatches substantially along the horizontal, extend. By providing two additional fittings on the window, the sash is advantageously supported in a predetermined manner at two points.

Preferably, each additional fitting on a support arm, which is pivotally mounted by means of a third pivot bearing on the lever arm and is pivotally mounted by means of a fourth pivot bearing on the sash.

Advantageously, by means of the fourth pivot bearing and the support arm of the additional fitting in addition a part of the weight of the sash over the additional fitting are transferred to the floor frame, so that the fitting is relieved. Further advantageously, over torques are applied to actuate the (additional) fitting and to open or close the window.

Preferably, each support arm of the additional fitting by means of the fourth pivot bearing on the casement is pivotally mounted and displaceable along the direction of displacement V on the casement. Advantageously, the additional fitting is displaceable relative to the fitting, so that upon actuation of the fitting, d. H. when opening or closing the window, no constraint occurs, d. H. no material-deforming stress on the fitting or sash.

Preferably, the actuating device of the lever arm is designed as a substantially coaxial with the first pivot bearing arranged toothed segment. Advantageously, the radius, i. H. the distance between the individual teeth of the toothed segment and the first pivot bearing, constant, so that the torque acting around the first pivot bearing is constant, regardless of the position of the lever arm.

Preferably, the actuator of the lever arm is engaged with an actuatable rack. The rack is further preferably by means of the actuating device (crank, motor or the like) drivable or actuated, in particular displaceable or movable back and forth.

Preferably, the rack is without tooth root, d. H. the rack is constructed ladder-like with two longitudinal webs and a plurality of transverse webs.

Preferably, the actuating device of the lever arm is non-positively connected to an actuatable coupling rod or coupling chain or an actuatable coupling cable.

Preferably, at least one fitting and at least one additional fitting are arranged vertically one above the other, wherein the respective actuating means of the at least one fitting and the at least one additional fitting are non-positively connected to each other. Further preferably, the at least one fitting and the at least one additional fitting are rigidly connected to each other. Particularly preferably, the rigid connection is effected by means of a rigid rack or a rigid coupling rod. Due to the rigid coupling further preferably carried out a synchronous movement or actuation of the lever arms, so that advantageously tilting and constraining is avoided.

Preferably, the center of gravity of the sash moves during opening and closing substantially perpendicular to the plane defined by the gantry. This means that the center of gravity is shifted in particular horizontally, so that no lifting or lowering of the center of mass or the sash. Advantageously, it is thus not necessary to apply a force for lifting the casement by means of the actuating device. The dimensioning z. B. the engine can be correspondingly poor performance, so that advantageously costs for providing and operating the engine can be saved.

Preferably, the second pivot bearing is arranged vertically above the fourth pivot bearing. Advantageously, so that the weight of the sash is received by the fourth pivot bearing below the second sliding pivot bearing. This advantageously results in a mechanically stable arrangement with low tilting moments, wherein the casement tends to tilt away above the second pivot bearing of the first pivot bearing of the lever arm.

Preferably, the distance between the two pivot bearings of the support arm substantially corresponds to the distance between the third pivot bearing and the second pivot bearing of the lever arm. Advantageously, the sash remains aligned during opening and closing substantially parallel to the floor frame.

Preferably, the third pivot bearing is arranged substantially centrally between the first pivot bearing and the second pivot bearing on the lever arm. Advantageously, the casement is thereby displaced substantially parallel to the dock frame when opened and closed, i. H. the center of gravity is moved along a horizontal plane in order to achieve a preferred parallel guidance of the casement and to optimize the force relationships.

Preferably, in the closed state of the window, the fourth pivot bearing is arranged on the building side to the first pivot bearing and in the open state of the window, the fourth pivot bearing is arranged on the weather side to the first pivot bearing. Advantageously, the necessary space can be minimized by this arrangement, since the fitting or the additional fitting is moved in the closed state very close to or in the floor frame inside and seen from the first pivot bearing side building area for the arrangement of the (additional) fitting available is.

The torque required for pivoting the first pivot bearing results from the product of the weight of the sash and the distance of the first pivot bearing of the fourth pivot bearing. The torque required for pivoting can be further increased by an additional occurring wind load. The fitting is preferably configured such that in the closed state of the window or in the almost closed state, the distance of the first of the fourth pivot bearing is minimal, so that at a given torque of the actuating force of the first pivot bearing, a large proportion of the torque for pressing the sash the floor frame or to the window seal is available. Furthermore, by positioning the fourth pivot bearing in the closed state of the window relative to the first pivot bearing on the building side, in the closed state or in the almost closed state, the weight force of the wing frame acts to generate a torque for closing the window. In other words, the torque generated by the weight of the sash advantageously helps in pressing the sash to the frame or window seal. Advantageously, no additional closures are necessary to press the sash against the floor frame or keep the sash in the closed state.

With a suitable arrangement of at least one additional fitting with respect to the position of the center of mass of the sash and the at least one fitting occurs due to the weight of the sash on the first pivot bearing of the at least one fitting a first torque and due to the tilting force of the sash on the first pivot bearing of at least one Additional fitting on a second torque, wherein the first torque is directed against the second torque.

The torque required for pivoting the casement can therefore be reduced by a preferably rigid connection of the at least one fitting with the at least one additional fitting by means of the tilting forces acting on the casement. This reduces the torque to be overcome by an actuator. Particularly preferably, the first and second torque are substantially equal in magnitude, so that no resulting torque occurs. The actuator is thus advantageously free of the weight of the sash and must to operate the fitting, d. H. to open and close the window, only overcome the friction and wind load.

The invention will now be described with reference to the accompanying drawings and an embodiment.

1 shows a perspective view of a four-fitting embodiment of a Parallelausstellfensters.

2 shows a detailed view of the Parallelausstellfensters of 1 in the fully open position of the window.

3 shows a detailed view of the Parallelausstellfensters of 1 in a partially open position of the window.

4 shows a detailed view of the Parallelausstellfensters of 1 in the closed position.

5 shows a side view of a fitting and an additional fitting another embodiment of a Parallelausstellfensters.

6 shows a side view of a fitting and an additional fitting another embodiment of a Parallelausstellfensters.

7 shows a side view of a fitting and an additional fitting another embodiment of a Parallelausstellfensters.

8th shows a side view of a fitting and an additional fitting another embodiment of a Parallelausstellfensters.

As in 1 is shown, a Parallelausstellfenster a floor frame 1 as well as a sash frame 2 on. The sash frame 2 is essentially parallel to the floor frame 1 displaced to an outside or weather side to open the Parallelausstellfenster.

To this displacement shift of the sash 2 opposite the pole frame 1 to enable, is the Parallelausstellfenster with four similar fittings 12 , where two fittings 12 serve as additional fittings, and preferably a pair of X-scissors 20 Mistake. The fittings 12 each have a lever arm 4 and a support arm 5 on. The lever arm 4 is about a first pivot bearing 8th with the cane frame 1 pivotally connected. Furthermore, one is with respect to the first pivot bearing 8th substantially opposite end of the lever arm 4 over a second pivot bearing 7 with the sash 2 pivotally connected. In addition, it is preferably located substantially in the middle of the lever arm 4 a third pivot bearing 10 on which a support arm 5 is articulated. The opposite end of the support arm 5 is over a fourth pivot bearing 9 with the sash 2 pivotally connected. To the displacement of the sash 2 opposite the pole frame 1 to allow, is also the second pivot bearing 7 the lever arm 4 on the sash 2 slidably disposed along a displacement direction V.

The fitting 12 is by applying a force to an actuator 14 operated, so that the lever arm 4 around the first pivot bearing 8th pivoted. Thus, by pivoting about the first pivot bearing 8th such that the second pivot bearing 7 from the floor frame 1 is moved away, the window is opened and by pivoting the first pivot bearing 8th in such a direction that the second pivot bearing 7 to the floor frame 1 is moved, the window is closed. The weight of the sash 2 is doing of the fourth pivot bearing 9 over the support arm 5 and the third pivot bearing 10 in the lever arm 4 initiated. It should be noted that the second pivot bearing 7 the weight of the sash 2 can not pick up, because this is arranged to be displaceable.

That on the first pivot bearing 8th acting torque is from the horizontal distance of the first pivot bearing 8th to the fourth pivot bearing 9 dependent. In other words, the farther the fourth pivot bearing 9 in the horizontal direction (y-direction) of the first pivot bearing 8th is removed, the greater the torque, due to the weight of the sash 2 is produced.

As further in the 2 and 3 is shown, is the distance of the first pivot bearing 8th from the fourth pivot bearing 9 with the window fully open, so that in this position of the window a maximum torque on the first pivot bearing 8th acts. Furthermore, acts in the in

2 shown full opening position of the window and the in 3 shown partial opening position of the window by the weight of the window sash 2 generated torque in a clockwise direction about the first pivot bearing 8th ,

In contrast, acts as in 4 shown the torque in the closed position of the sash 2 in the opposite direction, ie in the counterclockwise direction, because the fourth pivot bearing 9 in this position on the building side before the first pivot bearing 8th is arranged. The weight of the sash 2 applies a left-handed torque on the first pivot bearing 8th out. Thus, the weight of the sash supports 2 the pressing of the sash 2 on the floor frame 1 ,

To operate the fitting 12 or for pivoting the lever arm 4 about the first pivot bearing 8th a torque must be exercised. This torque may, for example, via a crank, another lever (not shown) or a stepper motor (not shown), a transmission or the like via the actuator 14 be exercised. Preferably, the lever arm 4 however, substantially coaxial with the first pivot bearing 8th with a toothed segment 6 or a ring gear (not shown) as a preferred actuator 14 provided, the / with a rack 3 is engaged. This rack 3 is preferably substantially along the vertical direction (z-direction) on the floor frame 1 slidably arranged. By moving the rack vertically 3 can the toothed segment 6 be actuated to a pivoting force about the first pivot bearing 8th on the lever arm 4 exercise. The window can be adjusted by moving the rack vertically 3 be opened and closed.

The rack is preferably designed as a rack without tooth base. In other words, the rack has a ladder-like shape with two (not shown) substantially vertically arranged longitudinal struts and a plurality of transverse webs 32 which act as teeth for engaging the sector gear 6 Act. This rack 3 can be displaced manually or via a pneumatic or hydraulic cylinder or an equivalent force application device.

The X-scissors 20 have a pair of scissor arms 22 on, by means of scissor joints 24 each on the floor frame 1 and the sash frame 2 are mounted. Each one is one of the scissor joints 24 from each scissor arm 22 in addition to one from the floor frame 1 or the sash 2 slidably mounted to a relative movement of the sash 2 opposite the pole frame 1 to enable.

Although in the present embodiment, the fitting 12 is arranged such that the first pivot bearing 8th with the toothed segment 6 and the rack 3 on the floor frame 1 is mounted and the second pivot bearing 7 and the fourth pivot bearing 9 on the sash 2 are mounted, the fitting can also be mounted vice versa, so that the first pivot bearing 8th with the rack 3 on the sash 2 is mounted and the second pivot bearing 7 and the fourth pivot bearing 9 on the floor frame 1 to be assembled. Furthermore, it is not necessary, two pairs of such fittings 12 to arrange on a Parallelausstellfenster. The Parallelausstellfenster may also only one or preferably two such fittings, preferably on the vertical sides 16a . 16b of the window arranged. When placing only one such fitting 12 Yet another fitting or the like is required to support the weight force at least two points. For this example, an X-scissors, Y-scissors or the like is suitable.

Evidently, the X-scissors are 20 the embodiment shown only optional to arrange for large windows, while smaller windows on X-scissors for additional guidance of the window can be dispensed with.

That in the 5 in a side view shown Parallelausstellfenster includes a fitting 12 and an additional fitting 12b moving in the z-direction from the fitting 12 is arranged.

A lever arm 4 of the fitting 12 is by means of a first pivot bearing 8th on the floor frame 1 pivoted. Next is the lever arm 4 by means of a second pivot bearing 7 on the sash 2 pivotable and along a direction of displacement V on the sash 1 slidably mounted. An actuating device 14 the lever arm 4 has substantially coaxial, ie, with a constant distance, to the first pivot bearing 8th arranged tooth segments 6 on that in the rack 3 intervention. This is the first pivot bearing 8th acting torque advantageously independent of the position of the lever arm 4 constant. By an actuator (not shown), such as a motor, is by means of the rack 3 a force on the actuator 14 can be applied to the fitting 12 to press.

A support arm 5 of the fitting is by means of a third pivot bearing 10 on the lever arm 4 pivoted. Next is the support arm 5 by means of a fourth pivot bearing 9 on the sash 1 pivoted. The weight force of the casement, which acts counter to the z-direction 1 is by means of the support arm 5 on the lever arm 4 transfer. Here is the second pivot bearing 7 spaced in the z-direction from, that is, above the fourth pivot bearing 9 arranged.

The distance between the two pivot bearings 9 . 10 of the support arm 5 essentially corresponds to the distance between the third pivot bearing 10 and the second pivot bearing 7 the lever arm 4 , The third pivot bearing 10 is essentially centered between the first pivot bearing 8th and second pivot bearing 7 on the lever arm 4 arranged.

The lever arm 4 and the sash frame 2 are displaceable relative to each other along the shift direction V (in this case substantially along the z-direction). The weight of the sash 2 is therefore not on the second pivot bearing 7 on the lever arm 4 transfer. However, the sash is 2 stored unstable, ie below the center of mass S of the sash. Therefore, tilting forces occur perpendicular to the shift direction V. These tilting forces cause due to the formation of the support arm 5 that the sash frame 1 above the fourth pivot bearing 9 a force substantially opposite to the y-direction experiences, ie tilted away from the building.

To counteract this tilting, the window comprises an additional fitting 12b , which in z-direction from the fitting 12 spaced, ie above it, is arranged. It is understood that the additional fitting 12b also below the fitting 12 can be arranged so that the fitting 12 from the additional fitting 12b spaced apart in the z-direction.

The additional fitting 12b has a lever arm 4b on, which by means of a first pivot bearing 8b on the floor frame 1 the window is pivotally mounted and by means of a second pivot bearing 7b on the sash 2 pivotable and along a direction of displacement V on the sash 1 is slidably mounted. An actuating device 14b the lever arm 4b the additional fitting 12b has, analogous to the fitting 12, substantially coaxial with the first pivot bearing 8b arranged tooth segments 6b on that in the rack 3b intervention. This is the first pivot bearing 8b acting torque advantageously independent of the position of the lever arm 4b constant. The rack 3b is with the rack 3 , which with the fitting 12 engaged, rigidly connected, so that both racks 3 . 3b can be actuated by the actuator.

With suitable dimensioning and arrangement of the casement 2 , the fitting 12 and the additional fitting 12b occurs due to the weight of the sash 2 at the first pivot bearing 8th of the fitting 12 a first torque and due to the tilting force of the sash 2 at the first pivot bearing 8b of additional fitting 12b a second torque, wherein the first torque is directed against the second torque. Preferably, the first and second torque are substantially equal in magnitude. Due to the intervention of the controls 14 . 14b of the fitting 12 or additional fitting 12b with the racks 3 and 3b , the racks become 3 and 3b subjected to opposite forces. Because the racks 3 and 3b are preferably rigidly coupled, cancel the opposite forces at least partially, so that a reduced or preferably no resultant force on the actuator of the racks 3 . 3b is transmitted. Since the actuator is thus advantageously free of the weight of the sash, the actuator may have a correspondingly low performance, ie a performance that only overcomes friction and wind load.

It is understood that 5 just a top view on one of the vertical sides 16a . 16b shows and that another fitting 12 and additional fittings 12b on the opposite vertical side 16a . 16b of the sash 2 are arranged.

The 6 . 7 and 8th show to the in 5 embodiments shown modified embodiments. Therefore, only the features different from those in FIG 5 shown features.

6 shows a side view of a fitting 12 and an additional fitting 12b an embodiment of a Parallelausstellfensters, wherein - in contrast to in 5 shown embodiment - the additional fitting 12b below the fitting 12 is arranged so that the fitting 12 from the additional fitting 12b spaced in the z-direction.

7 shows a side view of a fitting 12 and an additional fitting 12b an embodiment of a Parallelausstellfensters, wherein - in contrast to in 5 shown embodiment - the additional fitting 12b in addition a support arm 5b having.

The support arm 5b of additional fitting 12b is by means of a third pivot bearing 10b on the lever arm 4b pivoted. In addition, the support arm 5b by means of a fourth pivot bearing 9b on the sash 1 pivoted. The weight force of the casement, which acts counter to the z-direction 1 is at least partially by means of the support arm 5b of additional fitting 12b on the lever arm 4b transfer. Here is the second pivot bearing 7b spaced in the z-direction from, that is, above the fourth pivot bearing 9b arranged. The distance between the two pivot bearings 9b . 10b of the support arm 5b essentially corresponds to the distance between the third pivot bearing 10b and the second pivot bearing 7b the lever arm 4b the additional fitting 12b , The third pivot bearing 10b is in the middle between the first pivot bearing 8b and second pivot bearing 7b on the lever arm 4b the additional fitting 12b arranged.

8th shows a side view of a fitting 12 and an additional fitting 12b an embodiment of a Parallelausstellfensters, wherein - in contrast to in 7 shown embodiment - the fourth pivot bearing 9b the additional fitting 12b is formed displaceable along a displacement direction V. Therefore, the weight of the sash 2 not through the additional fitting 12b be recorded. Advantageously occur in this embodiment when operating the fitting 12 , ie when opening or closing the window, no restrictions on.

Of course, the fitting 12 and / or the additional fitting 12b be used for other types of windows, for example, windows that are not parallel to the vertical, but at a certain angle α issued to it. In this case, the angle α is preferably in a range between about 0 and about 90 degrees, more preferably between about 0 and about 75 degrees, more preferably between about 0 and about 45 degrees, even more preferably between about 0 and about 25 degrees, in particular between about 0 and about 15 degrees. The second pivot bearing 7 and the fourth pivot bearing 9 then are not vertically aligned with the sash 2 arranged, but for example offset horizontally. Another way to create a window that is to be issued at an angle, is the distance of the third pivot bearing 10 and the fourth pivot bearing 9 of

support arm 5 different from the distance of the third pivot bearing 10 from the second pivot bearing 7 to design.

LIST OF REFERENCE NUMBERS

1

stock frame

2

casement

3

rack

4

Lever arm of the fitting 12

4b

Lever arm of the additional fitting 12b

5

Support arm of the fitting 12

5b

Support arm of the additional fitting 12b

6

Tooth segment of the fitting 12

6b

Tooth segment of additional fitting 12b

7

second pivot bearing of the fitting 12

7b

second pivot bearing of the additional fitting 12b

8th

first pivot bearing of the fitting 12

8b

first pivot bearing of the additional fitting 12b

9

fourth swivel bearing of the fitting 12

9b

fourth pivot bearing of the additional fitting 12b

10

third pivot bearing of the fitting 12

10b

third pivot bearing of the additional fitting 12b

12

fitting

12b

additional fitting

14

Actuation device of the lever arm 4

14b

Actuation device of the lever arm 4b

16a, 16b

Vertical pages

20

X-scissors

22

Scherenarm

24

scissor joint

32

crosspiece

V

shift direction

Claims (14)

Parallel exposure window, comprising: - a floor frame ( 1 ) for arrangement in a building opening, - a sash ( 2 ) and - at least two fittings ( 12 ) on opposite vertical sides ( 16a . 16b ) of the sash ( 2 ), each fitting ( 12 ) a lever arm ( 4 ), which - by means of a first pivot bearing ( 8th ) on the floor frame ( 1 ) is pivotally mounted, - by means of a second pivot bearing ( 7 ) on the sash ( 2 ) is pivotally mounted and slidably mounted along a displacement direction (V) on the casement and - an actuating device ( 14 ), which is designed, the fitting ( 12 ) by applying a force to the actuator ( 14 ) and each fitting ( 12 ) a support arm ( 5 ), which - by means of a third pivot bearing ( 10 ) on the lever arm ( 4 ) is pivotally mounted and - by means of a fourth pivot bearing ( 9 ) on the sash ( 2 ) is pivotally mounted, and wherein the floor frame ( 1 ) and the sash ( 2 ) by actuating the actuating device ( 14 ) move relative to each other, so that the window can be opened and closed, wherein the Parallelausstellfenster further comprises at least one additional fitting ( 12b ), each additional fitting ( 12b ) a lever arm ( 4b ), which - by means of a first pivot bearing ( 8b ) on the floor frame ( 1 ) is pivotally mounted, - by means of a second pivot bearing ( 7b ) on the sash ( 2 ) is pivotally mounted and slidably mounted along the direction of displacement (V) on the casement and - an actuator ( 14b ), which is designed, the additional fitting ( 12b ) by applying a force to the actuator ( 14b ). Window according to claim 1, comprising at least two additional fittings ( 12b ) on opposite vertical sides ( 16a . 16b ) of the sash ( 2 ) are arranged. A window according to claim 1 or 2, wherein each additional fitting ( 12b ) a support arm ( 5b ), which - by means of a third pivot bearing ( 10b ) on the lever arm ( 4b ) is pivotally mounted and - by means of a fourth pivot bearing ( 9b ) on the sash ( 2 ) is pivotally mounted. A window according to claim 3, wherein each support arm ( 5b ) of the additional fitting ( 12b ) by means of the fourth pivot bearing ( 9b ) on the sash ( 2 ) is pivotally mounted and slidably along the displacement direction (V) on the casement. Window according to one of claims 1 to 4, wherein the actuating device ( 14 . 14b ) of the lever arm ( 4 . 4b ) as substantially coaxial with the first pivot bearing ( 8th ) arranged toothed segment ( 6 ) is trained. Window according to claim 5, wherein the actuating device ( 14 . 14b ) of the lever arm ( 4 . 4b ) with an actuatable rack ( 3 . 3b ) is engaged. A window according to claim 6, wherein the rack ( 3 . 3b ) without tooth base. Window according to one of claims 1 to 7, wherein the actuating device ( 14 . 14b ) of the lever arm ( 4 . 4b ) is non-positively connected to an actuatable coupling rod or coupling chain or an operable coupling cable. Window according to one of claims 1 to 8, wherein at least one fitting ( 12 ) and at least one additional fitting ( 12b ) are arranged vertically one above the other and wherein the respective actuating devices ( 14 . 14b ) of the at least one fitting ( 12 ) and the at least one additional fitting ( 12b ) are positively connected with each other. Window according to one of claims 1 to 9, wherein the center of mass of the sash ( 2 ) is moved during opening and closing substantially perpendicular to the plane defined by the floor frame plane. Window according to one of claims 1 to 10, wherein the second pivot bearing ( 7 . 7b ) in the z-direction vertically spaced from the fourth pivot bearing ( 9 . 9b ) is arranged. Window according to one of claims 1 to 11, wherein the distance between the two pivot bearings ( 9 . 9b . 10 . 10b ) of the support arm ( 5 . 5b ) substantially the distance between the third pivot bearing ( 10 . 10b ) and the second pivot bearing ( 7 . 7b ) of the lever arm ( 4 . 4b ) corresponds. Window according to one of claims 1 to 12, wherein the third pivot bearing ( 10 . 10b ) substantially centrally between the first pivot bearing ( 8th . 8b ) and second pivot bearing ( 7 . 7b ) on the lever arm ( 4 . 4b ) is arranged. Window according to one of claims 1 to 13, wherein in the closed state of the window, the fourth pivot bearing ( 9 . 9b ) on the building side to the first pivot bearing ( 8th ) is arranged and wherein in the open state of the window, the fourth pivot bearing ( 9 . 9b ) on the weather side to the first pivot bearing ( 8th ) is arranged.

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