EP2304146A1

EP2304146A1 - Hinged opening device for a window, a door, or the like

Info

Publication number: EP2304146A1
Application number: EP09757165A
Authority: EP
Inventors: Peter Stapf; Holger Beyer
Original assignee: Roto Frank AG
Current assignee: Roto Frank AG
Priority date: 2008-06-06
Filing date: 2009-05-15
Publication date: 2011-04-06
Anticipated expiration: 2029-05-15
Also published as: UA99970C2; SI2304146T1; CN102057120A; CN102057120B; PL2304146T3; WO2009146782A1; EA201071388A1; EP2304146B1; EA016573B1

Abstract

The invention relates to a hinged opening device for a window, a door, or the like, having at least one hinged arm that can be supported so as to be pivotable about a rotation axis, wherein the position of the rotation axis can be shifted by means of a rotatable eccentric, and wherein the eccentric has an anti-rotation locking device. It is provided that the anti-rotation locking device (24; 49) has at least one anti-rotation locking element (46; 51) inserted into at least some areas of a cutout (32; 52) provided in a frontal area (31) of the rotatably supported eccentric (21). The invention further relates to fittings (23) for a window, a door, or the like.

Description

Ausstellvorrichtung for a window, a door or the like

description

The invention relates to an opening device for a window, a door or the like, with at least one pivotable about an axis pivotable articulated arm, wherein the position of the axis of rotation is displaceable by means of a rotatable eccentric, and wherein the eccentric is associated with a rotation.

Ausstellvorrichtungen of the type mentioned are known from the prior art. They serve to connect a movable casement of a window, a door or the like with a fixed frame and cause or allow tilting of the casement, in particular a tilt-and-turn sash. For this purpose, such Ausstellvorrichtungen on one or more articulated arms, which allow the desired movement of the window. The one or more articulated arms are each pivotally mounted about at least one axis of rotation. Thus, for example, an articulated arm is fastened or mounted at one end on the fixed frame by means of a bearing pin defining an axis of rotation and at the other end by means of a further bearing pin defining a further axis of rotation. Whereby one of the joints usually allows another movement, namely a linear displacement of the corresponding axis of rotation, so that the casement can be tilted without undergoing a rotational movement. This means that, for example, the upper edge of the sash remains aligned parallel to the upper edge of the frame. Since windows, doors and the like are usually subject to manufacturing tolerances, it is necessary during the assembly of the window, the door or the like to compensate for this, so that the sash can be moved as intended and, for example, in the closed state sealingly closes with the frame. In addition, it is of interest to be able to compensate for signs of wear and age-related distortions in a maintenance of the window, the door or the like, to ensure proper functioning in the long term.

Known solutions are to adjust the length of the articulated arm, for example by means of an extendable, two-part articulated arm, and thereby adjust the position of the sash to the frame. In this case, for example, the two parts of the articulated arm are pushed into one another and held in their position by means of a screw which engages through a slot in one of the articulated arm parts. However, this solution is relatively expensive and leads in the design due to the design quickly to high wear in the field of connection of the Gelenkarmteile, so that the setting can not be guaranteed permanently.

Another solution is to move the position of the axis of rotation about which the articulated arm can be pivoted, so that the geometric position of the articulated arm is adjusted or adjusted. For this purpose, eccentrics are used, which change the position of the axis of rotation by a simple rotation and thereby adjust / adjust both the pivot point and the position of the articulated arm. However, larger eccentric tend to undesirable self-adjustment in operation, so instead of a compensation, for example, manufacturing tolerances, a deterioration of the casement frame assembly takes place. In order to prevent such a self-adjustment, that is to say an undesired rotation of the eccentric, it is known to associate the eccentric with an anti-twist device.

The publication US 5,152,102 discloses in this context a generic Ausstellvorrichtung with an eccentric, which has a symmetrical octagon outer contour or lateral surface and which can be used in an equally octagonal-shaped opening of the articulated arm. In this case, the eccentric eccentric to the outer contour disposed opening into which engages a bearing pin. Depending on how, so in which rotational position, the eccentric is inserted into the opening of the articulated arm, the position of the axis of rotation changes in relation to the articulated arm. The outer contour of the eccentric together with the contour of the opening forms an anti-rotation of the eccentric. The latter can only be twisted if it is completely removed from the opening. To ensure anti-rotation, it is completely absorbed by the articulated arm, so that it is not accessible in the assembled state.

The invention has for its object to provide a display device that allows a shift of the axis of rotation in the assembled state in a simple manner and at the same time prevents unwanted twisting of the eccentric.

The object underlying the invention is achieved in that the anti-rotation device at least one anti-rotation element ment, which engages at least partially in a recess formed in an end face of the rotatably mounted eccentric recess. The anti-rotation is thus formed by means of the end face, so that the lateral surface of the eccentric must fulfill no anti-rotation function and can be used differently. In the end face to at least one recess is formed. This is naturally open at least perpendicular to the end face (ie axially with respect to the eccentric). In other words, it is possible to intervene in the recess at least axially. Since the eccentric is now rotatably mounted, it can also be rotated without having to be dismantled. The anti-rotation element engages at least partially in the recess in the end face of the eccentric and prevents unwanted rotation of the eccentric. In other words, the anti-rotation element engages from below or from above or axially in the eccentric or in the recess in the end face of the eccentric. The fact that the anti-rotation device acts on the end face of the eccentric, the eccentric can be made much easier and cheaper, since its basic shape can now advantageously be designed substantially circular cylindrical.

Conveniently, the rotation is non-positively and / or positively formed. Thus, it can be provided that the anti-rotation element allows a purely non-positive or a purely positive locking fuse or a combination of the two. Although a non-positive anti-twist device requires less design effort in relation to a form-locking anti-rotation lock, a positive-locking solution also ensures a particularly high torque acting on the eccentric. a reliable anti-twist device. In addition, a purely non-positive solution allows the eccentric to be rotated into any desired position and thus the position of the axis of rotation can be continuously shifted.

Advantageously, the eccentric on a centrally mounted flange. This is expediently used as an axial bearing element for the articulated arm or for the eccentric. A flange here is to be understood as an element of the eccentric which projects radially from the eccentric and extends essentially over the entire circumference of the eccentric. Finally, the flange forms a bearing plate which lies in a plane perpendicular to the longitudinal extension of the eccentric and is advantageously formed integrally with the eccentric. Of course, it is also conceivable that the flange of a plurality of lying in a plane and radially of the eccentric protruding / protruding elements is formed, which are expediently formed in one piece with the eccentric. Of course, the flange can also be designed such that it is formed by the eccentric radially inwardly, that is not radially projecting, but has a total of a substantially smaller scope than the eccentric or the central bearing pin.

The flange preferably has an outer contour deviating from a circular shape, in particular a polygonal or polygonal contour. By means of this contour, it is possible in a simple manner to transmit a torque to the eccentric. Particularly preferably, the outer contour is designed as a turning tool attack contour, in particular for a spanner. Thus, during installation or maintenance of the display of the eccentric easy by means of a tool, in particular open-end wrench, twisted and thereby the axis of rotation are displaced. The prerequisite for this, of course, is that the anti-twist device is loosened beforehand. Whereby the flange is expediently reachable, without first having to dismantle the opening device.

Furthermore, it is provided that the flange forms the end face. It is therefore provided that the recess is formed in one of the end faces of the flange. The anti-rotation element thus interacts with the flange of the eccentric. Since the flange protrudes radially from the eccentric, a larger engagement surface is available for the anti-rotation element, so that, for example, the effect of the anti-rotation device, in particular in the non-positive solution, can be increased.

According to a development of the invention, the eccentric is designed as an eccentric sleeve. The eccentric sleeve has a circular-cylindrical base body, to which the flange adjoins. The main body can be introduced into a likewise circular opening, for example, of the articulated arm and twisted into the desired position (centric) therein. In this case, the eccentric sleeve has an eccentric bore into which a bearing pin can be inserted. Whereby both twisting and anti-twisting are realized via the flange.

In a preferred embodiment of the invention, however, the eccentric is designed as an eccentric pin. Appropriately, the eccentric pin has two eccentrically arranged bearing pins. The axes of the bearing pins are of course aligned parallel to each other. One of the bearing pins engages in a bearing pin take the hinge arm, while the other bearing pin engages in a bearing pin receptacle of the frame, the sash or other articulated arm.

Advantageously, the flange is arranged between the bearing pins of the eccentric pin. Wherein the flange is expediently mounted centrally with respect to one of the bearing pins. The flange acts simultaneously as a thrust bearing and spacers between the two articulated to be connected to each other components of the jack.

Furthermore, it is provided that the recess of the rotation is formed in the centrally mounted end face of the flange. In this case, of course, the centrically supported end face is understood to be the end face which lies on the side of the flange facing the bearing pin, to which the flange is arranged centrally. This has the consequence that the recess formed in the end face of the eccentric is also centrally rotated or displaced. As a result, the anti-rotation element cooperates with the centrally mounted end face of the flange or the eccentric.

According to an advantageous embodiment of the invention, the anti-rotation locking element is formed elastically deformable. In particular, the non-positive solution can be realized thereby in a simple manner. For example, the elastically deformable anti-rotation locking element can serve to provide the force necessary for the force closure. Advantageously, the anti-rotation element has a high surface roughness, so that the friction between the anti-rotation element and the articulated arm increases and the adhesion is supported. With a sufficient force, the frictional force and thus the non-positive fuse can of course be overcome, so that in the assembled state of the jack (ie during operation) of the eccentric is protected on the one hand from undesirable twisting and on the other hand by means of appropriate force for adjusting or moving the axis of rotation can be rotated without the Ausstellvorrichtung must be dismantled.

Preferably, the recess in the end face of the eccentric ring-shaped, in particular annular. Conveniently, it is also arranged centrally, so that a rotation of the eccentric leads to a central rotation of the annular recess.

In a preferred embodiment of the invention, the anti-rotation element is designed as an O-ring. This is expediently inserted into the annular recess, so that it engages at least partially in this. The protruding part of the O-ring in the assembled state interacts with the component on which the eccentric or the end face is mounted centrally. In this case, for example, due to the force acting on the casement gravity forces a clamping / clamping of the O-ring between the flange or eccentric and the eccentric centric overlapping component, such as the articulated arm, the frame or the sash. Due to the elastic deformability of the O-ring, it is deformed during assembly, with the surface cooperating with the eccentric being increased, thereby increasing the friction between the eccentric and the anti-rotation element. The same applies of course to the with the eccentric bearing component cooperating surface of the elastically deformable anti-rotation element. With the O-ring as anti-rotation element a particularly simple and cost-effective rotation is realized.

According to an advantageous embodiment of the invention, the anti-rotation element is designed as a bending spring, in particular as bow spring. In contrast to the above-described O-ring in the bending or bow spring spring action is not in a compression and / or stretching but in an elastic bending of the anti-rotation element. The bow spring engages at least "from below" or at least axially in the recess of the eccentric and thus acts on it "from below" on the end face or axially.

Particularly preferably, the eccentric in the end face a plurality of distributed over its circumference, in particular evenly distributed recesses. The bow spring engages depending on the rotational position / rotational positioning of the eccentric in one of the recesses at least partially and acts on the eccentric axially. Appropriately, the contour of the recess or the recesses corresponds substantially to the contour of the recess engaging in the end of the bow spring. Advantageously, the dimensions of the engaging end of the bow spring are only slightly smaller than that of the recess (s), so that a positive connection between the eccentric and bow spring as anti-rotation. Furthermore, it is advantageously provided that the recesses and / or the engaging end of the bow spring have one or more insertion bevels. This makes it possible in a particularly simple manner, the bow spring in one of the recesses let it engage and thereby realize a backlash-free or substantially play-free positive connection of the rotation. By the engagement of the bow spring can also be a tangential torque, ie a torque transmitted to the eccentric. In contrast to the above-described embodiment with the O-ring, it is not possible to "loosen" the anti-twist device by using a corresponding expenditure of force due to the interlocking connection Execution of the anti-twist device possible.

According to a development of the invention, the recesses are open-edged. This means that the recesses are radially open and thus recognizable on the circumference of the flange. On the one hand so easy to recognize when adjusting and / or maintenance of the jack, how far the eccentric can be rotated so that the bow spring can engage in one of the recesses, on the other hand stands for the bow spring a larger attack / contact surface The flange is available so that even larger moments can be transmitted.

Appropriately, the bending spring or bow spring is rotatably held on the articulated arm. This prevents that the bow spring can unscrew from the recess. Advantageously, the bow spring extends substantially over the entire articulated arm. Whereby an extension in the longitudinal extent of the articulated arm is meant, and of course, a shorter bow spring is conceivable. Conveniently, the end face is the end face of the eccentric facing the articulated arm. It is further provided that the articulated arm, at least in the rich of the eccentric has a recess into which the bail spring for disengagement with the eccentric or with the flange, or for releasing the rotation is at least partially introduced. The Bϋgelfeder can thus immerse to solve the rotation in a free area of the articulated arm. Thus, the eccentric with the flange or with the recesses having face rest directly on the articulated arm. This allows a particularly compact built-Ausstellvorrichtung.

According to a preferred embodiment of the invention, the bending spring is formed as a round wire spring. The cross section of the spiral spring is therefore circular. The recesses of the eccentric, in which engages the round wire spring, are shaped adapted to the cross-sectional configuration of the round wire spring.

Advantageously, the bow spring on the eccentric end facing a rotary tool support area. This is advantageously between the two end faces of the flange or projects beyond this (axially), so it lies on the eccentric side of the eccentric. Now, if a tool, such as the open-end wrench, brought to the rotary tool attack contour and brought into engagement, so the rotary tool simultaneously acts on the rotary tool support area, whereby the bow spring is brought out of engagement with the eccentric or with the flange, respectively is displaced out of the recess into the recess in the articulated arm. As a result, the rotation is achieved and the eccentric can be adjusted / shifted to move the position of the axis of rotation. In a maintenance of the window, the door or the like, the display device Thus, due to the execution of the invention in a simple way and meadow adapted or readjusted, at the same time an unwanted twisting is prevented.

According to a development of the invention, the articulated arm is a Ausstellscherenarm. This is pivotally mounted at its one end about a first axis of rotation on a frame and at its other end about a further, second axis of rotation on a sash of the window, the door or the like. It allows, as described above, the tilting of the sash in or to the frame. In this case, one of the two axes of rotation or two axes of rotation an eccentric with an anti-rotation, as described above, be assigned. By rotating the eccentric, the axis of rotation can be displaced and thus the geometric position of the sash frame can be adjusted or adapted to the frame.

In a further embodiment, the articulated arm is a support arm pivotally mounted on the pop-up scissor arm and serves to support and guide the pop-up scissor arm. Advantageously, the support arm, in particular at a free end, by means of the eccentric on the Ausstellscherenarm pivotally mounted. The flange thus lies between the Ausstellscherenarm and the support arm and acts inter alia as Axial- spacer between the two articulated arms. The axis of rotation to be displaced with the eccentric is in this case advantageously the axis of rotation between the support arm and the opening scissor arm. At its end opposite the Ausstellscherenarm end of the support arm is advantageously pivotally mounted on the sash. Furthermore, it is provided that on the Ausstellscherenarm a scissor bearing element is formed, which allows a storage of the Ausstellscherenarms on a frame. In particular, the scissor bearing element is designed such that it can interact with a hinge pin arranged on the frame.

Finally, the invention relates to a fitting for a window, a door or the like, which is characterized by a Ausstellvorrichtung, as described above.

figure description

In the following, the invention will be explained in more detail with reference to some figures. Show this

Figure 1 shows an embodiment of an inventive

A stay mechanism,

2 shows an enlarged side view of the display device according to the invention,

3 shows an advantageous eccentric in a perspective view,

FIG. 4 shows a support arm of the opening device in a perspective view,

5 shows the support arm in a perspective longitudinal section, 6 shows the support arm with eccentric and a bow spring in a sectional view,

7 shows the support arm with eccentric and bow spring in an exploded view,

8 shows an enlarged perspective view of the eccentric mounted on the support arm, FIG.

9 shows a further embodiment of an anti-rotation device for the eccentric in an exploded view,

FIG. 10 shows the further exemplary embodiment in a sectional illustration and

Figure 1 1, a further embodiment of the invention.

1 shows in a simplified plan view of an embodiment of a display device 1 for a window, a door or the like, which causes or allows tilting of a turn-tilt wing of the window, the door or the like. The opening device 1 has a first articulated arm 2, which is designed as Ausstellscherenarm 3 and pivotally at one end 4 pivotally about an axis of rotation 5 on a here only partially illustrated frame 6 and at its other end 7 pivotally about an axis of rotation 8 at one here only partially shown sash 9 of the window, the door or the like is mounted. Furthermore, the opening device 1 has a second articulated arm 10, which is designed as a support arm 11 and pivotable about an axis of rotation 13 at the Ausstellscheren- arm 3 and at its other end 14 is pivotally mounted about an axis of rotation 15 on the sash 9. The axis of rotation 5 is formed by a arranged on the Ausstellscherenarm 3 or trained scissors bearing element 16, in which a hinge pin 17 of the frame 6 rests. The axis of rotation 8 is formed by a bearing pin 18, which engages in a bearing pin receptacle of the Ausstellscherenarms 3, and which is additionally mounted longitudinally displaceable or linearly displaceable in an opening formed on the sash 9 slot 19. The rotation axis 15 is likewise formed by a bearing pin 20, which engages in a bearing pin receptacle of the support arm 11. The axis of rotation 13 is formed by an eccentric 21, not visible in this illustration, by means of which the position of the axis of rotation 13 with respect to the support arm 11 is displaceable.

FIG. 2 shows, in an enlarged perspective view, the opening device 1 in the region of the support arm 11 essentially from the side. In contrast to the tilted state of the opening device 1 shown in FIG. 1, the opening device 1 is shown in the closed state in FIG. 2, so that the opening scissor arm 3, the support arm 1 1 and a drive rod 22 of the extension rod 22 that can be arranged on the sash frame 9 1 having fitting 23 are substantially congruent one above the other. Here, the arranged between the support arm 11 and the Ausstellscherenarm 3 eccentric 21 can be seen. By rotating the eccentric 21, for example, manufacturing tolerances and / or signs of wear of the fitting 23 and / or the fitting 23 having window, door or the like can be compensated. The eccentric 21 is an anti-rotation 24 associated with the unintentional rotation of the Exzenters 21, for example, when tilt-open the window, the door or the like prevented.

As shown in FIG. 3, the eccentric 21 is designed as an eccentric pin 25 and has two bearing pins 26, 27 arranged eccentrically to each other. Between the bearing pins 26, 27, a flange 28 is further formed, which is arranged centrally to the bearing pin 27 and fully protrudes radially from the bearing pin 27 and the eccentric pin 25 and projects. The outer contour 29 of the flange 28 is designed as a rotary tool attack contour 30. In essence, the outer contour 29 is designed here as a hexagonal contour for a spanner. The open-end wrench or the rotary tool can be brought into engagement with the rotary tool attack contour 30 during operation, whereby a torque on the eccentric for rotating or displacing the position of the rotation axis 13 can be applied in a simple manner.

Furthermore, the flange 28 in its the bearing pin 27 facing end face 31 a plurality of circumferentially of the flange 28 distributed recesses 32 on. The recesses 32 are formed open-edge, so that in the recesses 32 both axially (with respect to the longitudinal extension of the eccentric pin 25) and radially can be intervened. Advantageously, the recesses 32 are distributed uniformly over the circumference of the flange 28.

As shown in Figure 2, the eccentric pin 25 is mounted centrally by means of the bearing pin 27 on the support arm 11 and is there with the end face 31 on the top of the support arm 11. The exhibitor scissor arm 3 is pivotally mounted on the bearing pin 26 of the eccentric pin 25 mounted. The bearing pin 26 in this case forms the axis of rotation 13, the position of which can be displaced by means of the eccentric 21. The Ausstellscherenarm 3 is located on the end face 31 opposite the end face 33 of the flange 28.

On the support arm 11 is further a bending spring 34 which is formed as a bow spring 35, arranged such that it engages with one end in one of the recesses 32 of the eccentric 21 and the flange 28.

FIG. 4 shows the support arm 11 in a perspective view. At its end 12, the support arm 11 has a bearing pin receptacle 36 for the bearing pin 26 of the eccentric pin 25. At its end 12 opposite the end 14, the support arm 1 1 has a further bearing pin receptacle 37 for the bearing pin 20. Between the bearing pin receptacles 36 and 37, the support arm 11 in its Ausstellscherenarm 3 facing surface 38 a recess 39 which extends substantially from the bearing pin receptacle 37 to close to the bearing pin receptacle 36 via the support arm 11. The recess 39 is formed only slightly wider than the bow spring 35, so that when the bow spring 35 is inserted into the recess 39, the bow spring 35 is rotatably held on the support arm 11.

As FIG 5 shows in a longitudinal section through the support arm 11, the recess 39 has a curved bottom surface 40, wherein the recess 39 protrudes at their ends furthest into the support arm 1 1 and approximately flush in the middle or almost flush to the Surface 38 runs. In addition, the support arm 11 points to the end the recess 39 each have a breakthrough 41, 42, whose function will be explained later in more detail.

FIG. 6 shows the support arm 11 with the eccentric 21 arranged thereon and the bow spring 35 in a longitudinal section. As already stated, the eccentric pin 25 rests with the end face 31 on the surface 38 of the support arm 11, and is thus supported axially on the support arm 11 by means of the flange 28. The bow spring 35 engages with one end 43 in one of the recesses 32 of the flange 28 and is at least partially in the recess 39 of the support arm 39. The end 43 opposite end 44 of the bow spring 35 is on the support arm 11, for example Firm rivets, held. The bearing pin 20 has at its end facing away from the support arm 11 end an axial stop in the form of a Lagerstiftkopfes 45, which serves to lock the bearing pin 20 to the fitting 23. It is also conceivable to provide the bearing pin head 45 at the other end of the bearing pin 20, and thereby to act on the end 44 of the bow spring 35 and thus to keep it in the recess 39 and on the support arm 11.

The ends 43 and 44 of the bow spring 35 are each angled approximately 90 ° downwards. The end 44 engages in the opening 42, whose contour substantially corresponds to the contour of the end 44 of the bow spring 35. The angled end 43 of the bow spring 35 protrudes into the opening 41.

The bow spring 35 in this case acts as an elastically deformable locking element 46 of the anti-rotation device. The fact that the bow spring 35 engages with its end 43 in one of the recesses 32 in the end face 31 of the flange 28, a twisting of the eccentric 21 around the axis of rotation of the bearing pin 27 effectively prevented. As a result, no displacement of the position of the rotation axis 13 during operation can take place unintentionally. However, if an adjustment of the display device 1 due to distortion and / or wear, as described above, necessary, then an open-end wrench, as already said, be brought into engagement with the rotary tool attack contour 30. In this case, a rotary tool support portion 53 at the end 43 of the bow spring 35 is applied simultaneously with the open-end wrench or the rotary tool so that it is displaced or pressed into the recess 39 and is thus disengaged from the recess 32. By this release of the anti-rotation 24 now the eccentric 21 can be rotationally positioned in a simple manner. If the rotary tool is removed from the rotary tool attack contour 30, the end 43 of the inherently elastic bow spring 35 displaces upward due to its inherent elasticity and engages in one of the recesses 32 in accordance with the rotational positioning of the eccentric 21.

The embodiment shown in Figure 6 shows the bow spring 35 in its anti-rotation position substantially in the relaxed state. Of course, it is also conceivable that in the anti-rotation, so when the end 43 engages in one of the recesses 32, the bow spring 35 is under a bias so that it acts on the eccentric 21 from below or axially and thereby the rotation 24 also a frictional component receives. Since the contour of the recesses 32 advantageously corresponds substantially to the contour of the end 43 of the bow spring 35, the engagement results in a substantially backlash-free positive connection between the eccentric 21 and the bow spring. the 35 formed. As shown in Figure 2, due to the height of the flange 28, the rotary tool or the open-end wrench can be performed in a simple manner between the Ausstellscherenarm 3 and the support arm 1 1 and engaged with the rotary tool attack contour 30, wherein simultaneously the anti-rotation element 46 is brought out of engagement with the recess 32 and thereby the anti-rotation 24 is released. Thus, in a simple manner, without disassembly or partial disassembly of the display device 1 must be made, the latter can be adjusted. By rotating the eccentric 21 and the eccentric pin 25, the geometric position of the support arm 11 is changed to the Ausstellscherenarm 3 and the sash to the frame.

FIG. 7 shows the support arm 11 with the eccentric pin 25, the spring 35 and the bearing pin 20 in an exploded view. As already mentioned, the bearing pin 20 may also be designed such that the bearing pin head 45 acts on the end 44 of the bow spring 35 and thus holds it on the support arm 11. The bearing pin 20 has in its lateral surface 47 on a flat portion 48, which cooperates in the assembled state with the end 44 of the bow spring 35. Furthermore, a washer 49 is provided which essentially serves as a spacer for the support arm 11 to the drive rod 22, as shown in the figure 2.

FIG. 8 shows the end 12 of the support arm 11 with the eccentric pin 25 and the bow spring 35 arranged thereon in an enlarged perspective view. The fact that the eccentric 21 and the eccentric pin 25 is mounted centrally on the support arm 11, and the flange 28 is mounted centrally, so that the Recesses 32 on the thus centrally mounted end face 31 can be constructed and manufactured in a simple manner and beyond a simple rotational positioning of the eccentric 21 can be done.

Figures 9 and 10 show another embodiment of an advantageous anti-rotation 49 for the eccentric 21 of the Ausstellvorrichtung 1. The anti-rotation 49 has a formed as an O-ring 50 anti-rotation element 51. As shown in the exploded view of Figure 9, the O-ring 50 between the end face 31 of the flange 28 and the surface 38 of the support arm 11 is arranged.

As shown in the figure 10 in a longitudinal sectional view, the eccentric 21 in the end face 31 a single, substantially annular and centrally arranged recess 52 in which the O-ring 50 rests. In the assembled state of the display device 1, the O-ring 50 is clamped between the eccentric 21 and the support arm 11, so that it is elastically deformed. As a result, among other things, the support or contact surface of the O-ring 50 in the recess 52 and on the surface 38 of the support arm 11 is increased. By clamping / bracing the O-ring 50 between the eccentric pin 25 and the support arm 11, a non-positive anti-rotation 49 is formed. This can only be "released" by applying a corresponding expenditure of force or a correspondingly high torque Advantageously, the O-ring 50 has a particularly high surface roughness, so that the effect of the frictional connection is increased Possibility of an unwanted twisting of the Exzenters 21 or a displacement of the position of the rotation axis 13 to prevent.

Although the described embodiments in each case relate to the axis of rotation 13, it goes without saying that the eccentric 21 with the associated rotation lock 24 or 49 can also be used for displacing one of the other axes of rotation 5, 8 or 15. It is also conceivable to provide a plurality of eccentrics with corresponding anti-rotation locks 24 or 49.

A combination of the frictional anti-rotation lock 49 and the positive rotation lock 24 is also conceivable.

FIG. 11 shows a further exemplary embodiment, which substantially corresponds to the exemplary embodiment of FIG. 2, so that reference is made to the description of FIG. 2 and to figures relating to FIG. The only difference is that the bending spring 34 is formed as a round wire spring 55. An end portion 56 of the round wire spring 55 is formed cranked and fixed in the support arm 11. The recesses 32 of the eccentric 21 have approximately a semicircular profile, that is, they are adapted to the cross-sectional profile of the round wire spring 55.

Claims

claims

1. Ausstellvorrichtung for a window, a door or the like, with at least one pivotable about an axis pivotable articulated arm, wherein the position of the axis of rotation is displaceable by means of a rotatable Exzenters, and wherein the eccentric is associated with a rotation, characterized in that the Anti-rotation (24, 49) at least one anti-rotation element (46,51) which engages at least partially in a in an end face (31) of the rotatably mounted eccentric (21) formed recess (32, 52).

2. Ausstellvorrichtung according to claim 1, characterized in that the anti-rotation (24, 49) is formed positively and / or positively.

3. Ausstellvorrichtung according to any one of the preceding claims che, characterized in that the eccentric (21) has a centrally mounted flange (28).

4. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the flange (28) has a rotary tool attack contour (30), in particular for a spanner, for rotating the eccentric (21).

5. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the flange (28) forms the end face (31).

6. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the eccentric (21) is designed as an eccentric sleeve.

7. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the eccentric (21) is designed as an eccentric pin (25).

8. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the eccentric pin (25) has two eccentrically arranged bearing pins (26,27).

9. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the flange (28) between the bearing pins (26,27) is arranged.

10. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the flange (28) with respect to one of the bearing pins (27) is arranged centrally.

1 1. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the recess (32; 52) in the end face (31) is formed, which is mounted centrally.

12. Display device according to one of the preceding claims, characterized in that the anti-rotation element (46; 51) is designed to be elastically deformable.

13. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the Verdrehsicherungsele- element (51) has a high surface roughness.

14. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the recess (52) is annular, in particular annular.

15. Display device according to one of the preceding claims, characterized in that the anti-rotation element (51) is designed as an O-ring (50).

16. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the Verdrehsicherungsele- element (46) as a spiral spring (34), in particular as a bow spring (35).

17. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the bending spring is formed as a round wire spring (55).

18. Ausstellvorrichtung according to any one of the preceding claims che, characterized in that the eccentric (21) in the end face (31) has a plurality of circumferentially spaced recesses (32).

19. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the bow spring (35) the eccentric (21) acted upon axially.

20. Display device according to one of the preceding claims, characterized in that the recesses (32) are open-edged.

21. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the end face (31) is the articulated arm (10) facing the end face (31) of the flange (28).

22. Display device according to one of the preceding claims, characterized in that the Bϋgelfeder (35) rotationally fixed to the articulated arm (10) is held.

23. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the articulated arm (10) at least in the region of the eccentric (21) has a recess (39) into which the bow spring (35) is at least partially introduced.

24. Display device according to one of the preceding claims, characterized in that the bow spring (35) at the said eccentric (21) facing the end (43) has a rotary tool support area (53).

25. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the articulated arm (2) is a Ausstellscherenarm (3).

26. Display device according to one of the preceding claims, characterized in that the articulated arm (10) on the Ausstellscherenarm (3) pivotally mounted support arm (11).

27. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the support arm (11) by means of the eccentric (21) on the Ausstellscherenarm (3) is pivotally mounted.

28. Ausstellvorrichtung according to any one of the preceding claims, characterized in that on the Ausstellscherenarm (3) a scissor bearing element (16) is formed.

29. Fitting for a window, a door or the like, characterized by a display device (1) according to one or more of the preceding claims.