EP3243989B1 - Fitting device - Google Patents

Description

The present invention relates to a fitting arrangement for a window, a door or the like with a scissor fitting, which is designed to pivotally mount a wing of the window or the door on a frame of the window or the door. The scissor fitting comprises a frame-side carrying bracket and a wing-side scissor arm, which can be shifted overlapping one another relative to one another along a direction of displacement in order to adjust the effective length of the scissor fitting, the carrying handle having a toothing formed directly on the carrying handle and that the scissor arm directly adjoins has counter-toothing designed for the scissor arm, the toothing and the counter-toothing being designed to engage with one another in a latching manner in such a way that the effective length-increasing displacement of the carrying handle relative to the scissor arm is blocked and the effective length-reducing displacement of the carrying handle relative to the scissor arm is permitted .

In such a fitting arrangement, the sash is not simply mounted on the hinge on the hinge frame via one or more pivot bearings, which are designed approximately in the manner of hinges, about the pivot bearings. Instead, a scissor fitting is provided which additionally couples the sash, in particular on its upper side, to the frame. Such a scissor fitting improves the stability of the mounting of the sash on the frame not only when the sash is opened for rotation, in particular by supporting the sash against vertically downward tensile forces acting on the sash due to gravity, but it also enables the sash to be tilted open . In particular, the scissor fitting limits the amount by which the sash can be tilted. On the other hand, the scissors fitting couples the tilt-open sash to the side of the frame opposite the tilt axis and thus tilting away from the frame (at least indirectly).

The scissor armature typically comprises a scissor arm which is connected in an articulated manner to the scissor arm mentioned, so that the scissor armature can open in the manner of a scissor mechanism. The scissor arm is generally elongated and can be connected at one end to the bracket with the bracket and pivotally coupled via the bracket to a scissor bearing provided on the frame. The carry handle, which is preferably angled so that it can encompass a corner of the respective wing, can be pivotally mounted, for example, directly on the scissor bearing or connected to a band element pivotally mounted on the scissor bearing.

With its end opposite the handle, the scissor arm is usually coupled to the wing. This coupling is typically not made at a fixed coupling point of the wing, but the end of the scissor arm that is remote from the bracket is movable between different positions, for example in an elongated hole or a groove on the wing. In addition, the scissor arm is usually articulated in one central region to one end of the scissor arm, the other end of the scissor arm being articulated at a fixed coupling point on the wing.

In this way, the side of the sash on which the scissor fitting is arranged, that is to say typically the upper side of the sash, can be guided through the scissor fitting and tilted away to a limited extent from the frame. This is because the scissor arm and the scissor arm, which are usually aligned parallel to each other when the sash is closed, can open up to a limited extent when the sash is tilted open and thus support the sash against the frame beyond the opening gap.

When installing the sash on the frame, it is important that the effective length of the scissor stay is set correctly. The effective length of the scissor fitting corresponds at least essentially to the distance, in particular when the sash is open for rotation, between a first coupling point at which the scissor fitting, in particular the scissor arm or the scissor link, is coupled to the sash and at which the sash is thus connected by the scissor fitting is held, and a second coupling point at which the scissor fitting, in particular the handle, is coupled to the frame is and on which the scissors fitting is mounted on the frame.

In particular, the effective length of the scissor armature influences the correct alignment of the sash relative to the frame, for example the height of the side of the sash which is remote from the hinge when the sash is opened. For example, shortening the effective length of the scissor fitting causes the sash to be raised relative to the frame, whereas the sash decreases as the effective length of the scissor fitting is extended relative to the frame. The raising and lowering of the wing is to be understood in such a way that the side of the wing remote from the hinge is displaced or tilted upwards when the wing is raised relative to the side near the hinge and when the wing is lowered down.

If the effective length of a scissor fitting coupling a sash to a frame is set incorrectly, the sash can be raised or lowered relative to the frame so that when the sash is closed, i. when the sash is pivoted towards the frame, the sash cannot be swiveled into the frame precisely. Instead, the sash runs with its upper or lower side onto the corresponding side of the frame before the closed position is reached and is consequently pivoted into the frame along this side of the frame.

But even if the effective length of the scissor fitting is initially set correctly after fitting the sash, parts of the sash can warp over time, in particular due to the dead weight of the sash, or parts of the entire fitting arrangement can deform and / or stretch to a certain extent that the wing sinks in particular. Such a sunken wing then again runs onto the frame when closing instead of smoothly swiveling into the frame.

Such run-up not only leads to abrasion between the sash and the frame, but also to an increased mechanical load on the fitting arrangement. Because while the scissor armature and in particular an associated scissor arm bearing are always exposed to forces oriented in the same direction (essentially exclusively tensile forces) when the effective length of the scissor armature is correctly set, when a sunken sash hits the frame, forces in the opposite direction are also exerted on these fitting elements. In particular the resulting change between tensile and compressive forces causes a high mechanical stress on the fitting arrangement and thus leads to increased wear.

It is therefore advantageous if the effective length of the scissor fitting can not only be set once during assembly, but can also be adjusted in the assembled state of the fitting arrangement holding the sash on the frame.

To adjust the effective length of the scissor fitting, the scissor arm and the carrying bracket of the scissor fitting are arranged to overlap one another and can be displaced relative to one another along a direction of displacement. In particular, the extent of the mutual overlap changes with such a shift in the shift direction. In order to determine the effective length for a respective flush and as smooth as possible entry of the sash into the frame, it may be advisable, in particular, to restrict the basic displaceability of the carrying handle and scissor arm relative to one another at least in such a way that it is prevented that the The wing is lowered due to this displaceability compared to the frame.

For this purpose, coupling means restricting the displaceability can be provided between the scissor arm and the carrying handle. For example, the scissor arm and the carrying handle can be screwed or clamped to one another in the region of their overlap in a suitably set relative position, so that they are then rigidly coupled to one another. After, for example, the wing has been lowered due to gravity, this rigid coupling can then be released, the overlap adjusted as required, and the rigid coupling subsequently restored.

However, such a manual determination of the effective length, for example for readjusting a lowered wing, is cumbersome insofar as it has to be carried out actively and generally requires the use of tools in a region of the wing which is typically poorly accessible, so that it often occurs when at all, only by a specialist. In many cases, therefore, the readjustment of a lowered sash is completely absent, for example if laypersons do not even realize that readjustment is necessary or if the costs for the professional implementation shy away. This poses a security risk since an incorrectly set effective length of the scissor stay fitting can result in damage to the sash bearing due to the resulting increased wear.

It is therefore advantageous if the scissor fitting is designed in such a way that a misalignment of the sash, for example when the sash is closing, is corrected automatically, in particular by automatically shortening the effective length of the scissor fitting. However, a constructively complex implementation of such an automatic readjustment should be avoided as far as possible, since it not only increases the costs of the fitting arrangement and the outlay for its assembly, but is generally more prone to errors precisely because of its complexity.

Out EP 2 902 575 A1 A fitting arrangement for a window, a door or the like with a scissor fitting is known according to the preamble of claim 1, the effective length of the scissor fitting being defined by the coupling of a scissor arm to a connecting component, which takes place via the meshing of a toothing and a counter toothing. For the toothing, however, a pawl movably mounted on the scissor arm is provided as a component separate from the scissor arm. Furthermore, in DE 71 12 124 U a similar fitting arrangement with a scissor fitting described, the effective length is adjustable. However, the type of coupling of the scissor arm to the swivel bearing there does not permit automatic adjustment of the effective length.

It is an object of the invention to provide a fitting arrangement with a scissor fitting, which enables the effective length of the scissor fitting to be corrected automatically, is particularly simple in construction, and nevertheless ensures reliable mounting of the respective wing.

The object is achieved by a fitting arrangement with the features of claim 1, wherein the carrying bracket has a toothing formed directly on the carrying bracket and that the scissor arm has counter toothing formed directly on the scissor arm, the toothing and the counter toothing being designed such that it latches intermesh, that an effective length-increasing displacement of the handle relative to the scissor arm is blocked and an effective length-reducing movement of the handle relative to the scissor arm is permitted, and wherein the counter-toothing is either formed in one piece with the scissor arm or is rigidly arranged on the scissor arm is that no relative movement is possible between the counter toothing and the scissor arm.

The interaction of the toothing and the counter-toothing thus has the consequence that the scissor arm and the carrying handle can only be displaced relative to one another in the direction of a shortening of the effective length, but not in the opposite direction of an extension of the effective length of the scissor fitting along the direction of displacement. Gravitational forces acting on the swing-open wing strain the scissor fitting in the direction of an extension of its effective length. However, such an extension is prevented precisely by the aforementioned interaction, so that the sash is kept stable and reliable by the scissor fitting.

However, if the rotated wing is lowered towards a correct alignment, for example as a result of a gravitational deformation of the wing or with increasing tolerances in the mounting of the wing, it will run when closing against the frame and is thereby raised in its correct orientation. This can result in the scissor fitting being loaded in the direction of a shortening of its effective length. Such a shortening is just permitted by the interaction of the toothing and the counter toothing. As a result, the effective length of the scissor fitting can automatically adapt in such a way that when the window is subsequently turned, the sash can be pivoted out and in again in a correctly aligned manner due to the now shortened effective length of the scissor fitting. The lowering of the wing is then compensated. In this respect, the interaction of the toothing and the counter toothing enables an automatic correction of the effective length.

In order to block an extension and allow a shortening of the effective length of the scissor fitting to enable the automatic correction, the scissor arm and the carrying bracket advantageously interact directly with one another via the toothing and the counter toothing. In particular, no separate element for the direction-dependent blocking or releasing of the displaceability of the scissor arm and the carrying handle relative to one another needs to be provided between the scissor arm and the carrying handle.

The fact that the toothing and the counter toothing are formed directly on the carrying handle or the scissor arm means that the toothing is an integral part of the carrying handle and the counter toothing is an integral part of the scissor arm. According to the invention, the counter-toothing is either formed in one piece with the scissor arm - the toothing can also be formed in one piece with the carrying handle; the toothing or the counter toothing then forms a surface structure of the carrying handle or the scissor arm - or the counter toothing is arranged rigidly on the scissor arm in such a way that there is no relative movement between the counter toothing and the scissor arm is possible - the toothing on the carrying handle can also be arranged so rigidly that no relative movement is possible between the toothing and the carrying handle. Such a rigid arrangement can be achieved, for example, by pressing in, gluing, screwing, riveting or welding.

The above-mentioned interlocking interlocking of the toothing and the counter toothing is achieved in particular by the respective shape of the toothing and the counter toothing, which in order to achieve the direction-dependent effect (blocking in the direction of an extension and releasing in the direction of shortening the effective length of the scissor armature), in particular in relation to the direction of displacement can be asymmetrical. The toothing and the counter-toothing are preferably designed in such a way that their interlocking prevents the effective length of the scissor fitting from being lengthened.

That in the opposite direction, namely in the direction of shortening the effective length, allowing the scissor arm and the carrying handle to be displaced relative to one another can be due in particular to the fact that, when a force is applied in the direction of a shortening of the effective length, the toothing and the counter toothing except Intervention are brought together. For this purpose, the toothing and the counter-toothing itself are designed in such a way that such a force effect is derived in order to release the meshing of the toothing and the counter-toothing, in particular step-wise, whereupon the toothing and the counter-toothing preferably engage each other again automatically, so that the effective length of the Scissor fitting is then secured again against being extended.

In order to be able to extend the effective length of the scissor fitting if necessary, for example when mounting the sash on the frame or if the effective length has inadvertently been shortened too much, the toothing and the counter toothing can be coupled to one another in such a way that they can be brought out of engagement with one another manually, at least temporarily using a tool, if necessary. Ideally, however, such a manual extension is not necessary. Rather, after its manufacture, the scissors fitting preferably initially has its maximum length. After assembly, the effective length of the scissor armature can then automatically be reduced to a suitable dimension when the sash is closed for the first time from a rotationally open position due to the design according to the invention. Should the sash lower over time, this can be compensated for by a further automatic shortening of the effective length. An increase in the effective length is typically not required.

According to one embodiment of the invention, the carrying handle and the scissor arm are in direct contact with one another when the toothing and the counter toothing mesh with one another, in particular with respective contact surfaces separate from the toothing and the counter toothing. When they are moved relative to one another, the carrying bracket and the scissor arm can slide with their respective contact surfaces, in particular along one another. For this purpose, the contact surfaces are preferably aligned parallel to the direction of displacement.

Thus, the contact surfaces, which are preferably flat and smooth, can contribute to stable mutual support and guidance of the scissor arm and the carrying handle relative to one another. A particularly stable mutual support results in particular if such a contact surface is formed both on the carrying bracket and on the scissor arm on both sides of the toothing or the counter toothing opposite one another with respect to the direction of displacement.

According to a further embodiment, the fitting arrangement comprises a pretensioning device which pretensions the carrying bracket and the scissor arm transversely to the direction of displacement and / or perpendicular to an engagement plane in which the toothing and the counter toothing interlock. Said engagement plane is in particular aligned parallel to the abovementioned contact surfaces. Such a pretensioning device can advantageously ensure that the toothing and the counter toothing actually and reliably mesh with one another, since the pretensioning may initially move them towards one another in the direction of mutual engagement and then hold them in engagement.

At the same time, however, such a pretensioning device allows the possibility that the mutual engagement against the pretensioning is at least temporarily solved - be it manually or (in particular when the carrying handle and scissor arm are moved relative to one another in the direction of shortening the effective length of the scissor armature) automatically is so that the handle and the scissor arm can be moved relative to each other until the teeth and the counter teeth, in particular again by the biasing device, are brought into engagement with each other again.

Furthermore, it is advantageous if the carrying handle has at least one elongated hole aligned in the direction of displacement and the scissor arm has a fastening element penetrating the elongated hole for the displaceable fastening of the carrying handle and the scissor arm to one another, or if, conversely, the scissor arm has at least one elongated hole aligned in the direction of displacement and the carrying handle for displaceable attachment of the carrying handle and the scissor arm to one another has a fastening element which extends through the elongated hole. Such a fastening element can, for example, at least essentially have a bolt or pin shape and in particular be designed in the manner of a rivet or an arrangement of screw and nut.

The fastening element is preferably arranged in a fixed position on the respective component (scissor arm or carrying handle), whereas it preferably has such a cross section, in particular round, that it engages through the elongated hole of the other component with play in the direction of the longitudinal extent of the elongated hole. Thus, on the one hand, the scissor arm and the carrying handle can be coupled to one another reliably, in particular at least essentially inextricably, by the interaction of the fastening element with the elongated hole, but on the other hand they remain displaceable relative to one another due to the play mentioned and the alignment of the elongated hole parallel to the direction of displacement. Due to the respective length of the elongated hole, the displaceability can be limited to a maximum and a minimum effective length of the scissor fitting in a structurally simple manner.

In particular, the interaction of one or more fastening elements with one or more elongated holes can be the only means provided on the scissor fitting for the displaceable coupling of the scissor arm and the carrying handle.

At least two, in particular identical, fastening elements are preferably provided on the scissor arm, which pass through a respective number of elongated holes, in particular of the same type, provided on the carrying handle, or vice versa. The toothing and the counter toothing are preferably arranged between two elongated holes or two fastening elements with respect to the direction of displacement.

According to an advantageous development of the above embodiments, the pretensioning device comprises a plate spring which is attached to the fastening element in this way it is provided that it prestresses the fastening element in the direction of reaching through the elongated hole. In particular, a respective fastening element can also have a certain play perpendicular to the plane of the respective elongated hole, that is to say extend through the elongated hole to different depths, so that the carrying handle and the scissor arm can be spaced apart from one another to a different extent or can lie directly against one another.

By means of a plate spring, the fastening element can advantageously be pretensioned into a desired limit position of this play, namely in particular in a position in which the fastening element extends particularly far through the elongated hole and thus the carrying handle and the scissor arm rest completely or at least particularly closely against one another. In particular, this also prestresses the toothing and the counter toothing of the carrying handle or the scissor arm in the direction of the most complete possible engagement.

Providing the plate spring directly on a respective fastening element advantageously also enables a pretension to be applied directly in the area of the coupling of the scissor arm and the carrying handle. Since a plate spring also requires comparatively little installation space, the pretensioning device and consequently the fitting arrangement as a whole can be made particularly compact.

Basically regardless of the arrangement of a respective plate spring on one or more fastening elements, it is also advantageous if the prestressing device comprises at least two spring elements, in particular plate springs, the toothing and the counter toothing being arranged between the two spring elements with respect to the direction of displacement. Providing a respective spring element on both sides of the area in which the toothing and the counter toothing mesh with one another can advantageously result in a uniform interaction of the toothing and the counter toothing contribute. In particular, this can prevent the toothing and the counter toothing from tilting, which preferably mesh with one another at least essentially aligned parallel to one another.

The toothing in the carrying handle and / or the counter toothing in the scissor arm is preferably integrally formed. For example, the toothing or the counter toothing can be embedded in a surface of the respective component, for example by providing tooth-like recesses in the surface, or protrude from the surface, for example by the teeth being designed as projections of the surface.

According to a preferred embodiment it is provided that the toothing is embedded in a flat side of the carrying handle and the counter toothing protrudes from a flat side of the scissor arm or - conversely - the toothing protrudes from a flat side of the carrying handle and the counter toothing is embedded in a flat side of the scissor arm. The flat sides mentioned are preferably arranged parallel to, in particular in alignment with, respective contact surfaces of the carrying handle or the scissor arm.

In an advantageous development, the toothing is formed by a plurality of tooth notches, which protrude as recesses into the flat side of the carrying handle, and the counter-toothing is formed by a plurality of teeth, which protrude from the flat side of the scissor arm, or vice versa. The teeth and the tooth notches can in particular be complementary to one another. In principle, one tooth can then engage in a tooth notch for the interlocking interlocking, as a result of which, depending on the specific shape of the teeth and tooth notches, a form fit with respect to the direction of displacement between the carrying handle and the scissor arm can be achieved.

However, since the scissor arm and the carrying handle can be displaced relative to one another with variable mutual overlap, there is advantageously no assignment of a respective tooth to a respective tooth notch. Rather, it depends in particular on the respective number of teeth and notches and on the respective relative position of the carrying handle and the scissor arm to one another, which tooth engages in which notch. Depending on the position, a different number of teeth and notches may mesh with one another.

Basically regardless of the type of formation of teeth or tooth notches in or on the carrying bracket or scissor arm, it can further be provided that the number of teeth or tooth notches of the toothing and the number of teeth or tooth notches of the counter toothing differ. In particular, the extent of the interlocking can be determined by the respectively smaller number, while the degree of displaceability can depend on the larger number, in particular on their difference from the smaller number. For example, if there are 4 notches more than teeth, 4 different shift positions may be possible, in which all teeth engage in a respective notch. The number of teeth determines the length of the intermeshing and thus how strong the latching interaction between the handle and the scissor arm.

The more teeth and tooth notches interact, the stronger the interaction, and the greater the difference between the number of teeth and the number of tooth notches, the further the handlebar can be moved relative to the scissor arm without changing the strength of the interaction, because the same number of teeth and notches mesh with each other. A large number of teeth or notches, however, requires a corresponding amount of space and can therefore be a compact design of the fitting arrangement, in particular of the handle, the length of which may be limited due to the space to be provided for a scissor link.

In order to enable reliable adjustment of the effective lengths over several stages, it is advantageous if the difference between the number of teeth and the tooth notches is at least 4. Furthermore, it is advantageous if the number of teeth and the number of tooth notches each amount to at least 4 in order to ensure reliable intermeshing. A good relationship between displaceability and space requirement can be achieved, for example, if the difference between the numbers is approximately 4, 4 teeth and 8 tooth notches or, conversely, 8 teeth and 4 tooth notches being provided according to a preferred embodiment.

The teeth and tooth notches are in particular each elongated and are also preferably aligned with their longitudinal extension transversely, in particular perpendicular, to the direction of displacement.

According to a further embodiment, the toothing and / or the counter toothing comprise teeth or tooth notches which have an asymmetrical tooth shape. The teeth or tooth notches are asymmetrical, in particular with regard to their respective tooth cross section. The asymmetrical design can in particular contribute to the direction-dependent effect of the interlocking interlocking of the toothing and the counter toothing, so that a shifting which increases the effective length of the scissor fitting is blocked and a shifting which reduces the effective length is permitted.

Preferably, the tooth flanks of the teeth or notches pointing in the direction of displacement are oriented obliquely, in particular at an angle of approximately 45 °, to the direction of displacement and the tooth flanks of the teeth or tooth notches pointing to an opposite side are perpendicular to the direction of displacement aligned. In particular, when the scissor arm is displaced in the direction of an increase in the effective length relative to the carrying handle, the vertically aligned tooth flanks of individual teeth can abut or strike against vertically formed tooth flanks and block the displacement by this interaction. On the other hand, the interaction of respective obliquely aligned tooth flanks of interlocking teeth and tooth notches can lead to the toothing and the counter toothing, in particular also against a preload, being at least temporarily disengaged, so that a shift in the direction of a shortening of the effective length is permitted.

Fig. 1

zeigt eine Ausführungsform einer erfindungsgemäßen Beschlaganordnung in perspektivischer Darstellung.

Fig. 2

zeigt den Tragebügel des Scherenbeschlags der in Fig. 1 gezeigten Beschlaganordnung in einer Einzeldarstellung.

Fig. 3

zeigt den Scherenarm des Scherenbeschlags der in Fig. 1 gezeigten Beschlaganordnung in einer Einzeldarstellung.

Fig. 4

zeigt die in Fig. 1 gezeigte Beschlaganordnung in einer Seitenansicht.

Fig. 5

zeigt die Verzahnung und die Gegenverzahnung der in Fig. 4 gezeigten Beschlaganordnung in einer Ausschnittsvergrößerung.

The invention is further explained below by way of example only with reference to the figures.

Fig. 1

shows an embodiment of a fitting arrangement according to the invention in a perspective view.

Fig. 2

shows the handle of the scissor fitting of the in Fig. 1 Fitting arrangement shown in an individual representation.

Fig. 3

shows the scissor arm of the scissor fitting of the in Fig. 1 Fitting arrangement shown in an individual representation.

Fig. 4

shows the in Fig. 1 Fitting arrangement shown in a side view.

Fig. 5

shows the toothing and the counter toothing of the in Fig. 4 Fitting arrangement shown in an enlarged detail.

The embodiment of a fitting arrangement 11 shown in the figures comprises a scissor fitting 13 which is designed to pivotably mount a sash of a window, a door or the like on a frame of the window or the door. The sash and frame are not shown. Basically, the fitting arrangement 11 can only be formed by the scissor fitting 13. However, it can also have other fitting elements, in particular for further mounting of the sash on the frame.

The scissor fitting 13 comprises a carrying handle 15, a scissor arm 17 and a scissor arm (not shown) and is intended to be arranged on an upper side of the wing in order to hold the wing both in the case of a rotary opening and a tilt opening. The handle 15 is angled and engages around a hinge-side upper corner of the wing in the assembled state. A first leg 19 of the carrying handle 15 is pivotally mounted on a scissor-type bearing (not shown) provided on the frame such that the wing can be opened for rotation. In this respect, the carrying handle 15 forms a frame-side element of the scissor fitting 13.

A second leg 21 of the carrying handle 15 is coupled to the scissor arm 17, which in turn is coupled on the one hand directly but with a sliding coupling point to the wing and on the other hand is articulated via the scissor link with a fixed coupling point on the wing. In this respect, the scissor arm 17 forms a wing-side element of the scissor fitting 13. The coupling of the scissor arm to the wing allows the wing to be tilted open, which is held in the tilt-open state by the scissor arm and the scissor arm and is limited to a maximum tilting opening.

A comparatively short scissor arm 17 is shown in the figures. In principle, the scissor arm 17 can also be longer and / or have further or different coupling means than the holes shown.

An effective length of the scissor armature 13 is defined by the coupling of the carrying handle 15 to the frame and the coupling of the scissor arm 17 to the wing. In particular, the wing is supported by the scissor fitting 13 along this effective length on the frame. The correct orientation of the sash relative to the frame, in which the sash can be pivoted flush from the opened state into the frame without bumping against an edge of the frame, depends on a correctly set effective length of the scissor armature 13. If the effective length is too long, the sash is lowered in relation to the frame; if it is too short, the sash is raised in relation to the frame.

The carrying handle 15 has on its second leg 21 two elongated holes 23, which in Fig. 2 can be seen and their longitudinal orientations coincide. At a bracket-side end 25 of the scissor arm 17, two bores 27 are provided, which in Fig. 3 can be seen and are arranged along the longitudinal extent of the elongated scissor arm 17 at a distance from one another which corresponds to the distance between the elongated holes 23.

The scissor arm 17 also has two fastening elements in the form of respective retaining bolts 29 which are riveted on the one hand in a respective one of the bores 27 and on the other hand reach through a respective one of the elongated holes 23, whereby, as in FIGS 1 and 4 it can be seen that the respective elongated hole 23 engages behind with a widened head. Because of the length of the retaining bolts 29 on the one hand and the longitudinal extent of the elongated holes 23 on the other hand, the retaining bolts 29 are both with play with regard to the depth of the penetration through the elongated holes 23 as well as with regard to their position along the longitudinal extension of the elongated holes 23 in the elongated holes 23.

As a result, the carrying handle 15 and the scissor arm 17, which are inseparably coupled to one another via the holding bolts 29, can be displaced relative to one another, the direction of displacement V of this displaceability being determined by the longitudinal orientation of the elongated holes 23 and with the longitudinal extension of the second leg 21 of the carrying handle 15 and the longitudinal extent of the scissor arm 17 coincides. Due to the displaceability, the extent of the overlap of the second leg 21 of the carrying handle 15 and the end 25 of the scissor arm 17 on the bracket side is variable. The relative displaceability of the carrying handle 15 and the scissor arm 17 thus enables the effective length of the scissor fitting 13 to be adjusted.

Furthermore, the carrying handle 15 and the scissor arm 17 can start from the in 1, 4 and 5 Shown arrangement, in which they abut directly against one another with contact surfaces 33 formed on respective flat sides 31 of the carrying handle 15 and the scissor arm 17, are moved away from one another perpendicularly to the direction of displacement V. The possible distance between the respective contact surfaces 33 is limited by the length of the retaining bolts 29.

Between the head of each holding bolt 29 and the elongated hole 23 penetrated by the holding bolt 29, a spring element in the form of a plate spring 35 is provided, which prestresses the retaining bolt 29 in the direction of a deeper penetration of the elongated hole 23. Together, the plate springs 35 form a pretensioning device of the fitting arrangement 11, which prestresses the carrying handle 15 and the scissor arm 17 towards one another, so that the carrying handle 15 and the scissor arm 17 generally abut one another with their contact surfaces 33.

In a region of the overlap of the carrying handle 15 and the scissor arm 17 which is central with respect to the direction of displacement V, a toothing 37 is formed directly on and integrally in the carrying handle 15 and a counter toothing 39 is formed directly on and integrally in the scissor arm 17. The toothing 37 and the counter toothing 39 are located between two contact surfaces 33 of the carrying bracket 15 and the scissor arm 17. The toothing 37 is embedded in the flat side 31 of the carrying bracket 15 and the counter toothing 39 projects from the flat side 31 of the scissor arm 17 before that the toothing 37 and the counter-toothing 39 mesh completely as shown when the carrying bracket 15 and the scissor arm 17 abut each other with their respective contact surfaces 33. By prestressing the plate springs 35, the teeth 37 and the counter teeth 39 are also biased in the direction of this interlocking.

The toothing 37 is formed by a plurality of tooth notches 41 which are formed as cutouts in the flat side 31 of the carrying handle 15. The counter toothing 39 is formed by a plurality of teeth 43 which are designed as projections on the flat side 31 of the scissor arm 17. The teeth 43 and the tooth notches 41 are each arranged at regular intervals, the distance between the teeth 43 corresponding to the distance between the tooth notches 41 from one another. Furthermore, the teeth 43 and the tooth notches 41 are at least essentially complementary to one another, so that in particular a tooth notch 41 and a tooth 43 which fully engages in the tooth notch 41 each work flush with one another. Overall, the toothing 37 has eight tooth notches 41 embedded in the flat side 31 of the carrying bracket 15, while the counter toothing 39 has four teeth 43 protruding from the flat side 31 of the scissor arm 17.

Due to the different number of teeth 43 and tooth notches 41, the toothing 37 and the counter toothing 39 can be in one corresponding to the difference Number of different relative positions (in the embodiment shown there are four) of the carrying handle 15 and the scissor arm 17 fully engage in one another. One of these defined relative positions is in Fig. 4 and especially in the enlargement of the Fig. 5 to recognize.

Should the carrying handle 15 and the scissor arm 17 assume an intermediate position between these relative positions, the tooth flanks 45 which are aligned with the toothing 37 and the counter toothing 39 in the direction of a complete interlocking, and due to the tooth flanks 45 which are oriented obliquely to the direction of displacement V, will become due to the prestressing emanating from the plate springs 35 Teeth 43 and tooth notches 41 of the carrying handle 15 and the scissor arm 17 are advantageously automatically moved into one of the relative positions mentioned.

In these defined relative positions, tooth flanks 47 of the teeth 43 and the tooth notches 43 lie against one another in the direction of a displacement pointing towards the effective length of the scissor fitting 13 and oriented perpendicular to the direction of displacement V and thereby block such displacement. In contrast, the tooth flanks 45 pointing in the opposite direction are oriented at an angle of approximately 45 ° to the direction of displacement V. This, on the other hand, allows the effective length of the scissor fitting 13 to be displaced. Because when these tooth flanks 45 are moved towards each other in the direction of displacement V, they thereby force the toothing 37 and the counter toothing 39 out of engagement against the pretension of the plate springs 35 until the teeth 43 face the tooth notch 41 which is adjacent in the following, so that a complete one again Interlocking can be done. Thus, the effective length of the scissor fitting 13 can be shortened in a latching manner as required.

Reference list

11

Fitting arrangement

13

Scissors fitting

15

Carry handle

17th

Scissor arm

19th

first leg

21

second leg

23

Long hole

25th

bow end

27

drilling

29

Retaining bolt

31

Flat side

33

Contact surface

35

Belleville spring

37

Gearing

39

Counter toothing

41

Notch

43

tooth

45

oblique tooth flank

47

vertically aligned tooth flank

V

Direction of displacement

Claims (10)

1. A fitting arrangement (11) for a window, for a door or the like, comprising a scissor fitting (13) which is configured to pivotably support a leaf of the window or of the door at a frame of the window or of the door,
   wherein the scissor fitting (13) comprises a frame-side stay support (15) and a leaf-side scissor stay arm (17) which are displaceable in a mutually overlapping manner relative to one another along a displacement direction (V) to adjust the effective length of the scissor fitting (13);
   wherein the stay support (15) has a toothed arrangement (37) formed directly at the stay support (15) and the scissor stay arm (17) has a mating toothed arrangement (39) formed directly at the scissor stay arm (17); and wherein the toothed arrangement (37) and the mating toothed arrangement (39) are configured to engage into one another in a latching manner such that a displacement of the stay support (15) relative to the scissor stay arm (17) that increases the effective length is blocked and a displacement of the stay support (15) relative to the scissor stay arm (17) that decreases the effective length is permitted,
   characterized in that
   the mating toothed arrangement (39) is either formed in one piece with the scissor stay arm (17) or is arranged rigidly at the scissor stay arm (17) such that no relative movement is possible between the mating toothed arrangement (39) and the scissor stay arm (17).
2. A fitting arrangement in accordance with claim 1,
   characterized in that
   the stay support (15) and the scissor stay arm (17), in particular respective contact surfaces (33) of said stay support (15) and of said scissor stay arm (17) separate from the toothed arrangement (37) and mating toothed arrangement (39), contact one another directly when the toothed arrangement (37) and the mating toothed arrangement (39) engage into one another.
3. A fitting arrangement in accordance with claim 1 or claim 2,
   characterized in that
   the fitting arrangement (11) comprises a preloading apparatus which preloads the stay support (15) and the scissor stay arm (17) toward one another transversely to the displacement direction (V) and/or perpendicular to an engagement plane in which the toothed arrangement (37) and the mating toothed arrangement (39) engage into one another.
4. A fitting arrangement in accordance with at least one of the preceding claims,
   characterized in that
   the stay support (15) has at least one elongate hole (23) oriented in the displacement direction (V); and in that the scissor stay arm (17) has a fastening element (29), which engages through the elongate hole (23), for displaceably fastening the stay support (15) and the scissor stay arm (17) to one another, or vice versa.
5. A fitting arrangement in accordance with claims 3 and 4,
   characterized in that
   the preloading apparatus comprises a plate spring (35) which is provided at the fastening element (29) such that it preloads the fastening element (29) in the direction of the engagement through of the elongate hole (23).
6. A fitting arrangement in accordance with claim 3 or claim 5,
   characterized in that
   the preloading apparatus comprises at least two spring elements, in particular plate springs (35), with the toothed arrangement (37) and the mating toothed arrangement (39) being arranged between the two spring elements (35) with respect to the displacement direction (V).
7. A fitting arrangement in accordance with at least one of the preceding claims,
   characterized in that
   the toothed arrangement (37) is let into a flat side (31) of the stay support (15) and the mating toothed arrangement (39) projects from a flat side (31) of the scissor stay arm (17), or vice versa.
8. A fitting arrangement in accordance with claim 7,
   characterized in that
   the toothed arrangement (37) is formed by a plurality of tooth notches (41) which project as recesses into the flat side (31) of the stay support (15); and in that the mating toothed arrangement (39) is formed by a plurality of teeth (43) which project as projections from the flat side (31) of the scissor stay arm (17), or vice versa.
9. A fitting arrangement in accordance with at least one of the preceding claims,
   characterized in that
   the number of teeth (43) or tooth notches (41) of the toothed arrangement (37) and the number of teeth (43) or tooth notches (41) of the mating toothed arrangement (39) differ, in particular by approximately 4, and preferably amount to 4 and 8 respectively.
10. A fitting arrangement in accordance with at least one of the preceding claims,
    characterized in that
    the toothed arrangement (37) and/or the mating toothed arrangement (39) has/have teeth (43) or tooth notches (41) which have an asymmetrical tooth shape;
    and in particular in that the tooth flanks (45) of the teeth (43) or of the tooth notches (41) facing toward one side in the displacement direction (V) are aligned obliquely to the displacement direction (V) and the tooth flanks (47) of the teeth (43) or of the tooth notches (41) facing toward an opposite side are aligned perpendicular to the displacement direction (V).

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