EP0679789A2 - Pivot fitting or pivot-tilting fitting for windows, doors or the like - Google Patents

Abstract

The door or window is hinged inside a fixed frame (12) by two arms on each hinge. One arm (FL) is pivot mounted on the fixed frame with one end and form the main pivot (DA) with its other ends. The second arm (SL) has a sliding coupling to the movable frame and is pivot mounted on the fixed frame. The two arms are linked by a sliding coupling (50). The sliding coupling comprises a slot in the first arm and a guide pivot on the second arm. The effect of the coupling is to control the position of the main pivot (DA) and keep it near the fixed frame when the window or door is opened wide.

Description

The invention relates to a turn fitting or turn-tilt fitting of windows, doors or the like with a fixed frame and a sash, which is attached to the fixed frame about a vertical axis of rotation and, in the case of a turn-tilt fitting, tiltable about a horizontal tilt axis is, comprising a lower pivot bearing, which connects the fixed frame in the area of a lower corner of the fixed frame with the casement, in the case of a turn-tilt fitting in the form of a turn-tilt bearing, an upper pivot bearing, which the fixed frame in the area connects an upper corner of the fixed frame in the case of a rotating fitting to the sash frame and in the case of a rotating and tilting fitting to an extension arm coupled to the sash frame, the two pivot bearings each being designed with at least two links for displacing the axis of rotation during the Open the casement in the direction perpendicular to the frame plane of the fixed frame, the two links of each pivot bearing cross each other and are movably connected to each other at the intersection via a first joint, one of the two links, the guide link, being connected to a fixed frame-side pivot bearing part and to a sash-side pivot bearing part or the extension arm each via a pivot joint, and the other link, the control link , is at least pivotally connected to the fixed frame-side pivot bearing part via a second joint and is connected to the sash frame-side pivot bearing part or the extension arm via a sliding pivot joint, with the direction of displacement essentially parallel to the longitudinal direction of the wing frame leg carrying the pivot frame-side pivot bearing part or parallel to the longitudinal direction of the extension arm.

Such a turn fitting or turn-tilt fitting is known (e.g. DE 21 13 665 B2; US 4035953 A; DE 38 29 053 A1). The fitting can be concealed in the rebate space between the fixed frame and the sash frame, since the handlebar construction shifts the swivel axis in front of the fixed frame when the sash frame is opened, so that a collision between the sash overlap of the sash frame and the fixed frame is avoided. The two handlebars of the upper pivot bearing and the lower pivot bearing can, in particular in the case of particularly large and thus heavy sash frames, by means of the support device described in DE-38 29 053-A1 in the form of a support rod or an element subjected to tension, which causes the handlebars to bend Vertical forces are relieved.

When the sash frame is opened for rotation, however, the upper pivot bearing is still subjected to horizontal tension and the lower pivot bearing to horizontally directed pressure, since the sash frame tends to tilt downward in the sash plane around the force application point of the support device on the sash frame. The tensile load in the upper pivot bearing mainly affects the second joint between the control arm and the fixed frame-side pivot bearing part, which is formed in the known arrangement of a sliding pivot joint from an elongated hole in the fixed frame-side pivot bearing part and a guide part guided in the elongated hole and attached to the control arm . In order to obtain a sufficient displacement of the pivot axis when turning the sash frame with a sufficiently large, maximum turning-opening angle in this handlebar construction with two crossing and articulated links at the intersection, the slot mentioned must be relatively long, which the mechanical stability of the fixed frame-side pivot bearing part (in particular corner bracket) is weakened accordingly, especially since the tensile load that occurs (in contrast to the pressure load in the lower pivot bearing) cannot usually be derived directly into the fixed frame, since the elongated hole longitudinal edge of the fixed frame-side pivot bearing part under the tensile load generally changes cannot support against a corresponding step edge of the fixed frame. A displacement of the fixed frame side pivot bearing part away from the fixed frame visible surface for installation in a corresponding circumferential groove of the fixed frame would also undesirably shift the displacement path of the axis of rotation.

It is particularly problematic, however, that when the window is opened, there is a significant increase in the force exerted by the control link on the corresponding oblong hole flank, compared to the force exerted by the wing on the corresponding end of the guide link, since the guide link acts as a one-armed moment reinforcement lever relatively large distance between the free force application end and the point of intersection with the control arm. The longitudinal movement of the guide part in the elongated hole when opening and closing the sash thus takes place under strong transverse loading of the fixed frame side fitting part, which leads to damage to the elongated hole flanks and / or the guide part, at least after repeated actuation and with high sash weight. A corresponding reinforcement of the sliding swivel joint, in particular through the use of a hardened rail and a sliding block inserted into the elongated hole, is only possible to a limited extent for reasons of cost alone with the mass-produced rotary fitting or turn-tilt fitting. Apart from this, the elongated hole in the fixed frame side is claimed Pivot bearing part a lot of space with relatively large handlebar lengths. The upper pivot bearing is therefore quite material-intensive overall. There is also only very limited installation space in the area of the scissor store because the opening scissors themselves take up a lot of installation space with their components (locking fittings, counter support and longitudinal adjustment).

In the area of the lower pivot bearing (turn-tilt bearing in the case of a turn-tilt fitting), in addition to the problem of transverse loading (in this case, pressure loading in the direction of the fixed frame), there is also the problem of the relatively large amount of material and installation space required for the parts of the pivot bearing.

The invention is based on the technical problem of providing a turn-only fitting or turn-tilt fitting, which ensures reliable long-term operation even with high sash weights with little construction effort.

This problem is solved according to the invention in that the first joint is formed by a sliding rotary joint with a sliding direction essentially parallel to the longitudinal direction of the guide link.

Due to the design of the first joint as a sliding swivel joint, when the sash is rotated open, the crossing point of both links moves increasingly towards the swivel joint between the guide link and the pivot bearing part or extension arm on the sash frame, and then at the maximum swivel opening position (e.g. about 90 _° ) to take the shortest distance to this swivel, with the result that practically no power amplification occurs. The transverse load on the fixed-frame-side fitting part by the control link is accordingly reduced. When the wing is closed by turning, the distance between the current crossing point and the hinge of the guide link on the wing frame side initially increases. However, since the corresponding wing forces are increasingly introduced via the guide link into the frame pivot point of the guide link as the window is closed, this type of loading is not critical. The length of the sliding pivot joint in the guide link can be comparatively short due to the central arrangement of the sliding pivot joint at the crossing point of the two links, which ensures high mechanical stability with little construction effort.

The linear movement at the point of intersection of the handlebar arms allows the two handlebars to be shortened with the same displacement path of the pivot axis of the wing and with the same maximum opening angle. The reduction in the mechanical load on the upper and lower pivot bearings allows the use of higher sash weights with increased reliability. Thus, in the case of a fitting according to the invention constructed in accordance with the exemplary embodiment described below in conjunction with a sash weight of 80kg, the number of opening movements increased by a factor of 3 without damage to the fitting compared to a fitting according to DE 38 29 053 A1.

There are a variety of embodiments for the sliding hinge conceivable such. B. a C-profile-shaped, the guide arm encompassing guide part. Since the required displacement of the swivel joint is comparatively short due to the central joint position and, in addition, practically no force amplification occurs in the critical position when the sash is open, according to a preferred embodiment, the first joint can have a first elongated hole in the guide link and a pivotally attached to the control link, comprise first guide part movable back and forth in the first elongated hole. Such a sliding swivel joint is inexpensive to manufacture with reliable function.

The first guide part comes u. U. a two-sided flattened guide sleeve in question. However, at least with larger sash weights, this tends to twist slightly during the sliding movement and the sash load so that the leading edge, which is relatively sharp for production reasons (edge between the front end of the flattened area and the subsequent cylinder surface) may dig into the corresponding oblong hole flank . In order to avoid this, it is proposed that the first elongated hole and the first guide part have a substantially trapezoidal outline with essentially the same trapezoidal height and with baselines essentially parallel to the longitudinal direction of the guide arm, the longer baseline of which in each case when the window, door or the like is closed, that of the wing flap of the sash frame opposite fixed frame visible surface is closer than the shorter base line in the case of the upper pivot bearing and vice versa in the case of the lower pivot bearing. The first guide part in the form of the trapezoidal sliding block lies with its larger base line under the respective operating load on the corresponding flank of the elongated hole with a correspondingly reduced surface load, without the described risk of twisting. Due to the corresponding trapezoidal outline of the elongated hole, this can be made relatively wide without too much material reduction and thus weakening of the guide link, so that the guide part and a fixing bolt of the guide link holding the guide part can accordingly be made mechanically stable.

In order to bring the beginning of the movement path of the axis of rotation of the wing as close as possible to the fixed frame visible surface, which in turn allows a shortening of the handlebar lengths, it is proposed that the swivel joint between the guide link and the wing frame side pivot bearing part of the guide link or the extension arm with respect to a longitudinal center line of the wing frame side pivot bearing part or the extension arm is arranged offset towards a wing overlap of the casement.

The measures described above individually and even better in combination make it possible to dispense entirely with the lateral displacement of the second joint between the control link and the fixed frame-side pivot bearing part, so that the second joint can be formed by a rotary joint for the sake of simplicity. The fixed frame-side pivot bearing part, in particular in the form of a bearing bracket, no longer needs to have a cranked elongated hole section in order to provide the movement path for the head of a fastening bolt for the guide part. This in turn reduces the manufacturing effort and the installation space requirement.

Corresponding to the swivel joint between the guide link and the pivot bearing part on the wing frame side, the pivot joint between the control link and the fixed frame side pivot bearing part can also be arranged offset in relation to a longitudinal center line of the fixed frame side pivot bearing part in the direction of the fixed frame visible surface in order to obtain the desired pivot axis displacement with reduced handlebar lengths.

The solution described above with the second joint as a swivel joint and an asymmetrical arrangement of the two swivel joints between the guide link and the pivot frame-side pivot bearing part or control link and the fixed frame-side pivot bearing part is suitable for both the upper and the lower pivot bearing.

However, if you want to use a conventional wing-side fitting part for the lower pivot bearing, which is constructed symmetrically to a longitudinal center plane, and thus rules out an asymmetrical arrangement of the second joint, it is proposed in this case that the second joint is formed by a sliding swivel joint with the direction of displacement substantially parallel to the longitudinal direction of the fixed frame arm supporting the fixed frame side pivot bearing part.

On account of the sliding rotary joint according to the invention at the point of intersection between the two links, the further sliding rotary joint forming the second joint can be designed with a significantly shorter displacement path in comparison with the known design according to DE 38 29 053 A12, which benefits mechanical stability. The transverse load on the further sliding swivel joint is also still comparatively low due to the force amplification which is substantially reduced according to the invention when the sash is opened.

As with the first-mentioned sliding rotary joint, the further sliding rotary joint can also be formed by an elongated hole with a guide part that is movable to and fro in the elongated hole. A trapezoidal outline for the elongated hole and the second guide part can also advantageously be selected, in the case of the lower pivot bearing, the shorter of the two basic lines of the fixed frame visible surface being closer due to the corresponding transverse loading direction than the respectively longer one or vice versa in the case of an upper pivot bearing.

Finally, the invention relates to a window or a door with a rotary fitting or a turn-tilt fitting of the type described above.

The invention is explained below using preferred exemplary embodiments.

• Fig. 1 eine Seitenansicht nach Linie I-I in Fig. 2 eines erfindungsgemäß ausgebildeten Dreh-Kipp-Beschlages im Bereich des oberen Drehgelenks bei geschlossenem Flügel im Schnitt;
• Fig. 2 eine Draufsicht auf den Beschlag gemäß Fig. 1 im Schnitt nach Linie 11-11, jedoch bei maximal drehgeöffnetem Flügel;
• Fig. 3 die Anordnung gemäß Fig. 2 bei weniger weit geöffnetem Flügel;
• Fig. 4 die Anordnung gemäß Fig. 2 und 3 bei noch weniger weit geöffnetem Flügel;
• Fig. 5 eine Seitenansicht des erfindungsgemäßen Dreh-Kipp-Beschlages im Bereich des unteren Drehlagers bei geschlossenem Flügel im Schnitt nach Linie V-V in Fig. 6;
• Fig. 6 eine Draufsicht auf die Anordnung gemäß Fig. 5 im Schnitt nach Linie VI-VI, jedoch bei maximal drehgeöffnetem Flügel;
• Fig. 7 die Anordnung gemäß Fig. 6 bei weniger weit geöffnetem Flügel; und
• Fig. 8 die Anordnung gemäß den Fig. 6 und 7 bei noch weniger weit geöffnetem Flügel.

It shows:

• 1 shows a side view along the line II in FIG. 2 of an inventive turn-tilt fitting in the region of the upper swivel joint with the wing closed on average;
• FIG. 2 shows a plan view of the fitting according to FIG. 1 in section along line 11-11, but with the sash open to the maximum extent;
• 3 shows the arrangement according to FIG. 2 with the sash less open;
• 4 shows the arrangement according to FIGS. 2 and 3 with the wing opened even less;
• 5 shows a side view of the turn-tilt fitting according to the invention in the region of the lower pivot bearing with the sash closed, in a section along line VV in FIG. 6;
• Fig. 6 is a plan view of the arrangement of Figure 5 in section along the line VI-VI, but with the sash open to the maximum.
• 7 shows the arrangement according to FIG. 6 with the sash less open; and
• Fig. 8 shows the arrangement of FIGS. 6 and 7 with the wing even less open.

The invention is explained below using the example of a concealed turn-tilt fitting for a window or a door; the improvement of the handlebar construction of the concealed fitting according to the invention can be can also be used on turn fittings without tilt function. Furthermore, the use of a support device according to DE 38 29 053 A1 is advantageous, at least for larger sash weights, as is also indicated in FIG. 5. At least with smaller wing weights, such a support device can also be omitted under certain circumstances.

1-4 show a first embodiment of a handlebar design according to the invention without an elongated hole in the fixed frame-side pivot bearing part, this embodiment being able to be used unchanged as a lower pivot bearing with a pivot fitting and, under certain circumstances, also with a pivot-tilt bearing of a pivot-tilt Hardware.

The upper pivot bearing 10 shown, of the otherwise not shown, since the usual structure corresponding turn-tilt fitting made of handle, drive rods, locking block, striking plates, etc., connects the fixed frame 12 shown in FIGS. 1 and 2 simplified in section in the area of Pivot bearing sides, upper corner with the sash frame 14 only indicated in FIG. 2. With the sash closed, all parts of the upper pivot bearing are located in the rebate space 16 (see also FIG. 5) between the corresponding horizontal frame legs 18a and the vertical frame legs 18b of the sash frame 14 on the one hand and the horizontal frame legs 20a and 20b of the fixed frame 12 on the other hand. A circumferential, laterally projecting sash flap 21 of the sash frame 14, when the sash is closed, is opposite a fixed frame visible surface 22 of the fixed frame 12 and completely covers the rebate space 16, which is otherwise open in the direction of the blind frame visible surface 22, as in FIG. 5 with a point-point outline. is indicated.

In order to avoid a collision of the sash flap 21 in the region of the axis of rotation DA between the fixed frame 12 and the sash 14 with the fixed frame visible surface 22 despite the concealed arrangement of the fitting in the rebate space 16, the fitting is designed such that when the opening is turned, the axis of rotation is displaced DA from the folding space 16 in front of the fixed frame visible surface 22 results.

In the exemplary embodiment according to FIGS. 1-8, only two links are provided for each of the upper and lower pivot bearings. One of the two links, the guide link FL, is only articulated to both the fixed frame 12 and the sash 14. Its left end in FIGS. 1-4 is accordingly connected to the horizontal leg 28a of a corner bracket 28 via a pivot bearing 26, for example in the form of an articulated bolt. The corner bracket 28 is in turn inserted into the corresponding rebate space corner of the fixed frame 12 and rigidly fastened there, for example with the aid of screws 30.

A swivel joint 32, for example again in the form of a rivet bolt, connects the right end of the guide link FL in FIGS. 1-4 to the sash 14 and also defines the axis of rotation DA. In the case of a pure pivot fitting, this pivot joint 32 connects the guide link FL directly to a corresponding fitting angle of the casement. In the illustrated embodiment of a turn-tilt fitting, on the other hand, the swivel joint 32 connects an extension arm 34 of a stay scissor not shown with the guide link FL. In Fig. 1, on the left, one can still see a locking arm 34a, which cooperates with a locking block, not shown, of an espagnolette fitting in order to fix the opening arm 34 in the frame-parallel position on the sash 14 for rotating opening; the tilt rod fitting then releases the locking piece 34a to tilt open the wing.

The other link, the control link SL, also connects the fixed frame 12 to the sash frame 14. However, a sliding pivot joint 36 is now provided between the control link SL and the sash 14 or extension arm 34. In the exemplary embodiment shown, this sliding rotary joint 36 is formed by an elongated hole 34b in the extending arm 34 which is parallel to the longitudinal direction of the raising arm 34 and a guide part 38 at the corresponding end of the control link SL, for example in the form of a head bolt riveted to the control link SL.

In the exemplary embodiment according to FIGS. 1-4, the end of the control link SL on the fixed frame side is connected to the corner bracket 28 forming the fixed frame side pivot bearing part of the fitting via a swivel joint 40, for. B. in the form of a rivet bolt. Compared to a longitudinal center plane 42 of the corner bracket 28, the swivel joint 40 is displaced in the direction of the fixed frame visible surface 22. In the same sense, the swivel joint 32 defining the axis of rotation DA is also displaced, that is to say with respect to a longitudinal center line 44 of the raising arm 34 in the direction of the wing overlap 21 (in each case perpendicular to the corresponding frame plane).

So that both handlebars FL and SL can lie on top of one another in a space-saving manner despite mutual intersection when the wing is closed, both are provided with laterally open recesses 48, 49 which engage when the wing is closed with a corresponding Z-shaped bend of both handlebars FL and SL in this area, as is the case is known per se from DE 38 29 053 A1.

Both links FL and SL are coupled to one another via a sliding rotary joint 50, consisting of an elongated hole 52 in the guide link FL and a guide part 54 which can be moved back and forth in the elongated hole and which is rotatably fastened to the control link SL via a rivet joint pin 56.

The elongated hole 52 in the guide link FL runs in the longitudinal direction of the handlebar. It has a trapezoidal outline, the shorter base line 52a of the two mutually parallel base lines 52a and 52b being closer to the fixed frame visible surface 22 than the longer base line 52b when the sash is closed. The guide part 54 (also called sliding block) also has a trapezoidal outline with the same trapezoidal height and the same orientation of the trapezoidal side lines in order to be able to penetrate into the trapezoidal corners of the elongated hole 52 in both stop positions (see also FIG. 3, in which a section of the Control link SL is shown broken out above the guide part 54). One can also see there the square outline of a head 56a of the rivet joint bolt 56, which head always protrudes beyond the edge of the elongated hole 52. In this way, the two links FL and SL are reliably held together at the crossing point.

The trapezoidal shape ensures, on the one hand, that there is no risk that the guide part 54 will twist in the slot 52 during operation and thereby cause increased friction and wear. On the other hand, there is a greatly reduced surface load on the oblong hole flanks, since under the operating load the guide part 54 with its longer trapezoidal side is supported on the corresponding groove flank (longer base line 52b). This applies at least to a wing that is not fully open for rotation (see FIG. 3), in which the guide part 38 at the corresponding end of the control link SL is removed from the upper end of the elongated hole 34b in FIG. 2 and thus no tilting moments of the wing frame 14 by one to the frame plane vertical tilt axis and can forward via the control arm SL. These forces are thus transmitted solely via the swivel joint 32 to the guide link FL, which then attempts to pivot about the swivel joint 26 in the clockwise direction in FIG. 2. He is prevented from doing so by the guide part 54 within the elongated hole 52, since this accordingly presses against the upper flank of the elongated hole 52 in FIG. 2 and subsequently the corresponding wing forces via the section of the control link SL following upwards into the swivel joint 40 and thus forwards into the fixed frame 12.

2 and 3 show that when the wing is wide open for rotation, the momentary crossing axis KA defined by the respective position of the guide part 54 with rivet-pivot pin 56 in the longitudinal direction of the guide link FL is only slightly distant from the axis of rotation DA. The length of the lever arm to which the sash 14 engages directly (distance between the pivot bearing 26 and the axis of rotation DA) is therefore only slightly greater in the critical sash position than the effective length of the lever arm acting on the control link SL (distance between the pivot bearing 26 and the axis KA ). The forces acting on the sliding rotary joint 50 essentially transversely to its elongated hole 50, which are then transmitted via the upper section of the control link SL into the rotary joint 40, are therefore only insignificantly greater than those from the sash frame 14 into the rotary joint 32 with the axis of rotation DA initiated forces.

If the wing is closed further (see FIG. 4), the guide part 54 moves further towards the left end of the elongated hole 52 in FIG. 4. At the same time, the angle enclosed between the guide link FL and the control link SL continues to decrease, so that increasingly the forces resulting from the tilting moment of the wing and acting on the pivot bearing 32 with the axis of rotation DA (arrow F in FIG. 4) are introduced directly into the guide link FL due to the corresponding breakdown of forces for introduction into the fixed frame via the swivel joint 26 the rotary swivel joint 50 is relieved, in spite of an increase in the difference between the two lever lengths mentioned.

Overall, there are significantly reduced handlebar lengths of the two handlebars FL and SL, which is partly due to the shifting pivot joint located centrally at the intersection of the two handlebars FL and SL with a comparatively short displacement path, and secondly the shifting of the corner angle 28 made possible by eliminating an elongated hole two pivot bearings 32 and 40 with the wing closed in the direction of the wing flap 21.

The structure of the lower pivot bearing in the form of the pivoting pivot bearing 60 largely corresponds to that described above with regard to the handlebar construction. The guide link FL is coupled to the control link SL via the sliding rotary joint 50 ', the trapezoidal shape of the elongated hole 52' being reversed, i.e. with the longer base line 52b on the side of the elongated hole facing the fixed frame visible surface 22 (when the sash is closed). This takes into account the opposite direction of force in the lower pivot bearing. A corresponding force arrow F 'is shown in FIG. 6; the outline of the lower, horizontal frame spar 18a, which is not per se visible in this section, is indicated by a dashed outline.

As in the first embodiment, the guide link is provided with a pivot bearing 26 fixed frame-side pivot bearing part coupled in the form of a bracket 28 '. The fitting bracket 28 'is inserted in a corresponding corner of the rebate 16 and rigidly connected to the fixed frame 12, in particular screwed (screws 30'). The vertically upwardly projecting leg 28b 'carries at its upper end a support rod 62 which engages with its upper end, not shown, on the vertical spar 18b of the casement 14 for receiving the casement weight when opening and tilting; reference is made to DE 38 29 053 A1.

The control link SL is now coupled to the fitting bracket 28 'via a further sliding swivel joint 64, comprising an elongated hole 66 in the horizontal leg 28a' and a guide part (sliding block) 68 within the elongated hole 66, which is attached to the upper end of the control link by means of a pivot pin 70 is rotatably attached. The bolt head 70a, which is square in outline, in turn protrudes beyond the two elongated hole edges in all operating positions in order to ensure the cohesion between control link SL and horizontal leg 28a. An offset of the horizontal leg 28a 'in the region of the elongated hole 66 ensures the necessary movement space for the bolt head 70a on the underside of the horizontal leg 28a'. The elongated hole 66 and the guide part 68 are in turn trapezoidal with a trapezoidal orientation corresponding to that of the sliding rotary joint 50 according to FIGS. 1-4, i.e. with the respectively shorter base line 66a on the side of the elongated hole facing the fixed frame visible surface 22, since the wing tilting moment (force arrow F ') puts pressure on the control link SL and thus presses the guide part 68 with its longer base line against the base line 66b.

The elongated hole 66 is displaced with respect to a longitudinal center plane of the corner bracket 28 in the direction of the fixed frame visible surface 22, in order to create favorable movement conditions for the displacement of the axis of rotation DA in front of the fixed frame visible surface 22 when the sash is opened. This corresponds to the corresponding displacement of the swivel joint 40 in the first exemplary embodiment according to FIGS. 1-4.

The type of coupling of the other handlebar ends of the control arm and control arm to the wing frame 14 basically corresponds to that of the first exemplary embodiment with a pivot bearing 32 'defining the axis of rotation DA between the control arm and wing frame 14 and a sliding rotary joint 50' between the control arm SL and the wing frame 14 .

In the possible application of a turn-tilt fitting, however, the lower pivot bearing must be designed as a turn-tilt bearing 60. Pivot bearing 32 'and sliding pivot joint 50' must therefore also permit a tilting movement about a horizontal tilt axis KA.

This can be achieved in that the sliding swivel joint 36 'and the swivel joint 32' are each provided with an upwardly projecting projection part 36'a or 32'a, which opens into the corresponding slot-like recess 34 'or downwards 33 of a sash-side fitting part are used with a corresponding tilt play when the lower frame spars 18a and 20a are in parallel. In the exemplary embodiment shown, the fitting part is formed by a bearing rail 71 produced in the die casting process, which is rigidly connected to the casement 14, in particular is screwed (screw 72). The approximately cylindrical projection part 36'a is supported during the opening movement of the wing in the correspondingly elongated, downwardly open recess 34 '; In the tilt-ready position shown in FIG. 5, the projection part 36'a is located in the region of a side window 71 of the corner bearing rail 71 in order to penetrate more or less far into the window 71a when the sash is opened.

The projection part 32'a which forms the actual corner bearing, on the other hand, is conically tapered towards the top so as not to collide with the cylindrical inner circumferential wall of the receiving opening 33 when it is tilted open.

The sequence of movements when the wing is opened and closed is shown in FIGS. 6-8. With the wing open at maximum rotation, the distance between the crossing axis KA defined by the momentary crossing point of both links FL and SL and the turning axis DA is minimal, so that practically no force amplification occurs. In order to obtain the desired maximum opening angle of at least 90 with still short lengths of the handlebars FL and SL, despite the arrangement of the projection parts 36'a and 32'a symmetrical to the longitudinal center plane 44 of the corner bearing rail 71, with at most low power amplification with the window opened to the maximum, the fixed frame-side end of the control arm, as described, is allowed a comparatively small linear movement parallel to the fixed frame plane.

When the wing is fully opened for rotation, the guide part 68 is located at the left end of the elongated hole 66 in the figures. If the wing is then closed slightly (into the position according to FIG. 7), the guide part 68 first moves to the right end of the elongated hole 66 ( due to the different initial inclination of the two elongated holes 66 and 52 'relative to the longitudinal direction of the control link SL). Subsequently, the guide part 54 'of the sliding rotary joint 50' also moves in the figures to the left to the end of the elongated hole 52 'with the wing closed.

Claims (11)

1. Turn-fitting or turn-tilt fitting of windows, doors or the like, with a fixed frame (12) and a sash (14) on the fixed frame (12) about a vertical axis of rotation (DA) and, in the case of rotation -Tilting fitting to a horizontal tilting axis (KA) is attached, comprehensive - A lower pivot bearing which connects the fixed frame (12) in the area of a lower corner of the fixed frame (12) with the casement (14), in the case of a turn-tilt fitting in the form of a turn-tilt bearing (60) , - An upper pivot bearing (10), which the fixed frame (12) in the region of an upper corner of the fixed frame (12) in the case of a rotating fitting with the casement and in the case of a turn-tilt fitting with one with the casement (14) coupled extension arm (34) connects,
wherein the two pivot bearings are each formed with at least two links (FL, SL) for displacing the axis of rotation (DA) when the sash frame (14) is opened in the direction perpendicular to the plane of the frame of the fixed frame (12),
the two links (FL, SL) of each pivot bearing (10) crossing each other and being movably connected to one another at the crossing point via a first joint,
one of the two links, the guide link (FL), being connected to a fixed frame-side pivot bearing part (corner bracket 28, 28 ') and to a pivot frame side pivot bearing part (corner bearing rail 71) or the extension arm (28) each via a pivot joint (26, 32), and wherein the other link, the control link (SL), is at least pivotally connected to the fixed frame-side pivot bearing part (corner bracket 28, 28 ') via a second joint and to the sash frame-side pivot bearing part (corner bearing rail 70) or the extension arm (28) via a sliding pivot joint (36, 36 ') is connected, with the direction of displacement essentially parallel to the longitudinal direction of the wing frame arm (18a) carrying the pivot frame side pivot bearing part or parallel to the longitudinal direction of the extension arm (28),
characterized in that the first joint is formed by a sliding rotary joint (50, 50 ') with a sliding direction essentially parallel to the longitudinal direction of the guide link (FL). 2. Fitting according to claim 1, characterized in that the first joint has a first elongated hole (52) in the guide link (FL) and a pivotally attached to the control link (SL), in the first elongated hole (52,52 ') movable back and forth first Guide part (54,54 ') comprises. 3. Fitting according to claim 2, characterized in that the first elongated hole (52,52 ') and the first guide part (54,54') have a substantially trapezoidal outline with substantially the same trapezoidal height and with the longitudinal direction of the guide link (FL) in essentially parallel baselines, the shorter baseline (52a) of which, when the window, door or the like is closed, is closer to the fixed frame visible surface (22) opposite the sash flap (21) of the casement than the longer baseline (52b) in the case of the upper pivot bearing and vice versa in the case of the lower pivot bearing. 4. Fitting according to one of the preceding claims, characterized in that the swivel joint (32) between the guide link (FL) and the sash-side pivot bearing part of the guide link or the extension arm (28) relative to a longitudinal center line (44) of the sash-side pivot bearing part. of the extension arm (28) is arranged offset in the direction of a sash flap (21) of the sash frame (14). 5. Fitting according to one of the preceding claims, characterized in that the second joint is formed by a rotary joint (40) (Fig. 1 to 4). 6. Fitting according to claim 5, characterized in that the pivot joint forming the second joint (40) with respect to a longitudinal center line (42) of the fixed frame-side pivot bearing part (corner bracket 28) in the direction of or to the wing flap (21) of the sash frame (14) opposite facing frame face (22) is arranged offset. 7. Fitting according to one of claims 1 to 4, characterized in that the second joint is formed by a sliding rotary joint (64) with the direction of displacement substantially parallel to the longitudinal direction of the fixed frame side pivot bearing part (corner bracket 28 ') carrying fixed frame leg (20a) ( 5 to 8). 8. Fitting according to claim 7, characterized. that the second joint comprises a second elongated hole (66) in the fixed frame-side pivot bearing part (corner bracket 28 ') and a pivotally attached to the control link (SL), to and fro movable in the second elongated hole (66), second guide part (68). 9. Fitting according to claim 8, characterized in that the second elongated hole (66) and the second guide part (68) have a substantially trapezoidal outline with substantially the same trapezoidal heights and with the longitudinal direction of the fixed pivot bearing part (corner bracket 28 ') substantially parallel baselines (66a, 66b), the shorter (66a) of which is closer to the fixed frame visible surface (22) opposite the wing flap of the sash than the longer base line (66b) in the case of a lower pivot bearing (60) and vice versa in the case of an upper pivot bearing. 10. Window or door with a rotating fitting according to one of the preceding claims. 11. Window or door with a turn-tilt fitting according to one of claims 1 to 9.

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