EP0679789B1 - 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 from Windows, doors according to the preamble of claims 1 and 7.

Such a rotary fitting or turn-tilt fitting is known (e.g. DE-B-21 13 665 B2; US-A-4035953 A; DE-A-38 29 053 A1; DE-U-91 12 078; DE-A-27 51 681). The fitting is hidden in the rebate space between Fixed frame and casement, because the handlebar construction Swivel axis when opening the casement in front of the fixed frame relocated so that a collision between the covering the rebate Sash overlap of the sash frame with the fixed frame is avoided. The two handlebars of the upper pivot bearing and the lower pivot bearing can, especially with particularly large and therefore heavy Casement, by the described in DE-38 29 053 A1 Support device in the form of a support rod or a train Elements of vertical forces causing the handlebars to bend be relieved.

With the sash frame open, however, the upper one remains Pivot bearing on horizontally directed train and the lower pivot bearing on stressed horizontally because the sash strives to in the wing plane around the force application point of the support device on Tilt sash down. The tensile load in the upper Swivel mainly affects the second joint between the Control arm and the fixed frame side pivot bearing part, which at the known arrangement of a sliding hinge from one Elongated hole in the fixed frame side pivot bearing part and one in the elongated hole guided, attached to the control arm guide part is formed. To one sufficient displacement of the swivel axis when turning the Sash frame with a sufficiently large, maximum turning-opening angle this handlebar construction with two intersecting and im To obtain a point of intersection with articulated links, said slot must be relatively long, which the mechanical stability of the fixed frame side pivot bearing part (in particular Corner angle) weakens accordingly, especially since the tensile load that occurs (in contrast to the pressure load in the lower pivot bearing) mostly not can be derived directly into the fixed frame, since the under the Longitudinal slot longitudinal edge of the fixed frame side Pivot bearing part generally not against a corresponding one Can support the step edge of the fixed frame. A relocation of the fixed frame side pivot bearing part away from the fixed frame visible surface to Installation in a corresponding circumferential groove of the fixed frame would also undesirable the displacement of the axis of rotation move.

It is particularly problematic, however, that when the window is open a significant reinforcement of the control handlebar on the corresponding Oblong flank exerted force results in comparison to that of the wing the corresponding end of the control arm output force, since the The control arm acts as a one-armed moment reinforcement lever, with relative large distance between the free force application end and the Intersection with the control handlebar. The longitudinal movement of the Driving part in the elongated hole when opening and resting the casement thus takes place under strong transverse load on the fixed frame side Fitting part, causing damage to the elongated hole flanks and / or of the driving part, at least after frequent actuation and at high Sash weight, ride. A corresponding reinforcement of the Sliding rotary joint, in particular by using a hardened one Rail and a sliding block inserted into the elongated hole is alone for cost reasons for the mass-produced turn-only fitting or turn-tilt fitting only possible to a limited extent. Apart from that, that claims Elongated hole in the fixed frame side pivot bearing part a lot of space with relative large handlebar lengths. The upper pivot bearing is therefore quite good overall material-intensive. Also stands very in the area of the scissor stay Limited installation space is available because the stay scissors with their Components (locking fittings, counter support and longitudinal adjustment) itself takes up a lot of installation space.

Also in the area of the lower pivot bearing (turn-tilt bearing in the case of a Turn-tilt hardware) arises in addition to the problem of cross loading (in this case pressure load towards the fixed frame) the Problem of the relatively large amount of material and installation space required for the parts of the pivot bearing.

A concealed fitting is known from DE-A-27 51 681, at which the first joint from a sliding swivel with oblique to Longitudinal direction of the guide link moving direction is formed. An additional third handlebar connects the fixed frame side Turning part with one of the two handlebars and takes with the wing open 5 essentially the entire perpendicular to the sash plane acting wing force component. This famous fitting requires relatively high construction costs and also an installation space with a the minimum installation space depth corresponding to twice the handlebar width.

The invention is based on the technical problem of a rotating fitting twisted or turn-tilt fitting with little installation space required To provide the reliable permanent function even at high Sash weights guaranteed with little construction.

This problem is solved by the features of claim 1 and by the Features of claim 7 solved.

Due to the formation of the first joint as a sliding swivel joint when the wing opens, the point of intersection of both shifts Handlebars increasingly towards the swivel joint between the control link and pivot frame side pivot arm or extension arm, then at maximum turn-open position (e.g. about 90 °) the shortest distance to take this hinge with the result that practically none Force amplification occurs more. The transverse load of the fixed frame side Fitting part by the control handlebar is thus reduced accordingly. When the wing is closed and rotated, the distance initially increases between the current crossing point and the sash side Swivel joint of the control arm. As the closing of the Window the corresponding wing forces more and more but the Guide link in the frame pivot point of the guide link initiated, this type of burden is not critical. The length of the Sliding swivel joint in the guide link can be due to the central Arrangement of the swivel joint at the crossing point of both links be comparatively short, what high mechanical stability low construction costs.

The linear movement play at the crossing point of the handlebar arms allows a shortening of the two handlebars with the same displacement path Swing axis of the wing and with the same maximum opening and turning angle. The Reduction of the mechanical stress on the upper and lower Swivel bearings allow the use of higher sash weights with higher ones Reliability. This resulted in one according to the following described example of extension constructed, inventive Fitting in connection with a sash weight of 80 kg around the Factor 3 increased number of opening movements without damage to fittings compared to a fitting according to DE 38 29 053 A1.

Because the required displacement of the swivel joint due to the central joint position is comparatively low and also in the critical Position, with the sash open, practically no power boost occurs, the first joint is a first elongated hole in the guide link as well as one pivotally attached to the control handlebar in the first slot Movable first guide part include. Such a thing Sliding swivel joint is inexpensive to manufacture and more reliable Function.

The first part of the ride could possibly a flattened on both sides Guide sleeve come into question. However, this would have been at least Larger sash weights tend to shift when moving and to twist the wing load so slightly that the out Manufacturing reasons relatively sharp leading edge (edge between the front end of the flattened area and the following Cylinder surface) may digs into the corresponding oblong hole flank. Around to avoid this it is provided that the first slot and the first Guide part have a trapezoidal outline with in substantially the same trapezoidal height and with the longitudinal direction of the Command arm essentially parallel baselines, each of which longer baseline with the window, door or the like closed opposite the sash offset of the sash frame Fixed frame visible area is closer than the shorter base line in each case Case of the upper pivot bearing and vice versa in the case of the lower one Pivot bearing. The first guide part in the form of a trapezoidal sliding block lies with its larger baseline under the respective operating load on the corresponding flank of the elongated hole with a correspondingly reduced Wing load without the described risk of twisting. Because of the corresponding trapezoidal outline of the elongated hole can this without too much material reduction and thus weakening the Guide linkage should be relatively wide, so that the guide part and a fastening bolt of the guide link holding the guide part can accordingly be mechanically stable.

Around the beginning of the movement path of the axis of rotation of the wing if possible to approach close to the fixed frame visible surface, which in turn is a Shortening the length of the handlebar allowed, it is proposed that Swivel joint between the guide link and the sash side Pivot bearing part of the guide link or the extension arm opposite one Longitudinal centerline of the sash-side part of the sash frame or the Extension arm in the direction of a wing overlap of the wing frame is staggered.

The measures described above individually and even better in Combination allow for the lateral displacement of the second Joint between the control arm and the fixed frame side pivot bearing part to do without entirely, so that the second joint of simplicity can be formed by a swivel. The fixed frame side Rotary bearing part, especially in the form of a bearing bracket, does not need one cranked elongated hole section have more to the path of movement to provide for the head of a fastening bolt for the guide part. This in turn reduces the manufacturing effort and the installation space requirement.

According to the swivel between the control arm and the sash-side pivot bearing part can also the swivel between the Control arm and the fixed frame side pivot bearing part opposite one Longitudinal center line of the fixed frame side pivot bearing part in the direction of Fixed frame visible surface to be staggered to reduce Handlebar lengths to get the desired axis shift.

The solution described above with the second joint as Swivel joint and asymmetrical arrangement of the two swivel joints between the control arm and the pivot frame part on the sash frame or Control handlebar and fixed frame side pivot bearing part is suitable for both the upper as well as the lower pivot bearing.

However, if you have a conventional wing-side for the lower pivot bearing Fitting part wants to use, which to a longitudinal median plane is constructed symmetrically, and thus an asymmetrical arrangement of the second joint excludes, the measures of the Claim 7 proposed. So the second joint is from one Sliding swivel formed with the direction of movement essentially parallel to the longitudinal direction of the fixed frame side pivot bearing part wearing fixed frame legs. Because of the invention Sliding pivot at the crossing point between the two handlebars the further sliding rotary joint forming the second joint with im Compared to the known training according to DE 38 29 053 A12 essential shorter displacement path, which is mechanical stability benefit. The transverse load of the further sliding swivel joint is also due to the significantly reduced according to the invention Power amplification with the sash open still comparatively low.

The same is the case with the first sliding swivel Slide swivel from an elongated hole back and forth in the elongated hole movable guide part formed. It will also be an advantage trapezoidal outline for the elongated hole and the second guide part selected, in the case of the lower pivot bearing due to the corresponding shorter direction of load the shorter of the two Baseline of the fixed frame visible surface is closer than the 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 Turn-only fitting or a turn-tilt fitting of the type described above Art.

The invention is based on preferred embodiments explained.

Fig. 1

eine Seitenansicht nach Linie I-I in Fig. 2 einer ersten Ausführungsform eines erfindungsgemäß ausgebildeten Dreh-KippBeschlages im Bereich des oberen Drehgelenks bei geschlossenem Flügel im Schnitt;

Fig. 2

eine Draufsicht auf den Beschlag gemäß Fig. 1 im Schnitt nach Linie II-II, 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 einer zweiten Ausführungsform des erfindungsgemäßem 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:

Fig. 1

a side view along line II in Figure 2 of a first embodiment of a turn-tilt fitting designed according to the invention in the region of the upper pivot joint with the wing closed in section.

Fig. 2

a top view of the fitting according to Figure 1 in section along line II-II, but with the maximum open sash.

Fig. 3

the arrangement of Figure 2 with less open wing.

Fig. 4

the arrangement of Figures 2 and 3 with the wing even less open.

Fig. 5

a side view of a second embodiment of the turn-tilt fitting according to the invention in the region of the lower pivot bearing with the sash closed in the section along line VV in Fig. 6;

Fig. 6

a top view of the arrangement of Figure 5 in section along line VI-VI, but with the maximum open wing.

Fig. 7

the arrangement of Figure 6 with less open wing. and

Fig. 8

the arrangement of FIGS. 6 and 7 with the wing even less open.

In the following the invention is based on the example of a concealed turn-tilt fitting a window or a door explained; the invention Improvement of the handlebar construction of the concealed Fitting can also be used on turnable fittings without a tilt function apply. Furthermore, the use is, at least with larger sash weights a support device according to DE 38 29 053 A1 is advantageous, such as is also indicated in Fig. 5. At least with smaller sash weights such a support device can also be omitted under certain circumstances.

1-4 show a first embodiment of an inventive Handlebar training without elongated hole in the fixed frame-side pivot bearing part, this embodiment also unchanged with a rotating fitting can be used as a lower pivot bearing and under certain circumstances also with a turn-tilt bearing of a turn-tilt fitting.

The illustrated upper pivot bearing 10 of the otherwise not shown, because of the usual design of the corresponding turn-tilt fitting Handle, connecting rods, locking clamps, striking plates, etc., connects the fixed frame shown in FIGS. 1 and 2 simplified in section 12 in the area of the pivot side, upper corner with the only indicated in Fig. 2 sash 14. At closed wing are all parts of the upper pivot bearing in the rebate 16 (see also Fig. 5) between the corresponding horizontal frame legs 18a and vertical frame legs 18b of the casement 14 on the one hand and the horizontal frame legs 20a and 20b the fixed frame 12 on the other hand. A circumferential, sideways projecting wing flap 21 of the sash 14 is located with the sash closed, a fixed frame visible surface 22 of the Fixed frame 12 opposite and covers the otherwise in Direction to the frame visible surface 22 towards the rebate space 16 completely, as in FIG. 5 with a point-point outline, is indicated.

Despite the concealed arrangement of the fitting in the rebate 16 a collision of the flap 21 in the area of Axis of rotation DA between the fixed frame 12 and the casement 14 with the fixed frame visible surface 22 is to be avoided the fitting is designed so that a turn when opening Relocation of the axis of rotation DA from the rebate 16 in front of the Fixed frame visible surface 22 results.

In the exemplary embodiment according to FIGS. 1-8, these are merely two handlebars each for the upper and lower pivot bearing intended. One of the two handlebars, the control arm FL, is with both the fixed frame 12 and the sash 14 exclusively articulated. Its in Figs. 1-4 The left end is accordingly via a pivot bearing 26 for example in the form of a hinge pin with the horizontal leg 28a of a corner bracket 28 connected. The corner angle 28 is in turn in the corresponding folding space corner of the Fixed frame 12 used and there, for example with Using screws 30, rigidly attached.

A swivel 32, for example again in the form of a Rivet bolt, connects the right end of FIGS. 1-4 of the Guide link FL with the sash 14 and defined thereby also the axis of rotation DA. In the case of a pure swivel fitting this pivot joint 32 connects the guide link FL immediately with a corresponding fitting angle of the Sash. In the illustrated embodiment, a In contrast, the turn-and-tilt fitting connects the swivel joint 32 an extension arm 34 of a not shown Opening scissors with the guide handle FL. 1, left, you can still see a locking piece 34a, which with a locking block, not shown of an espagnolette fitting cooperates in order to turn open the extension arm 34 in the frame-parallel position on To set sash 14; to open the sash then the espagnolette fitting gives the locking piece 34a free.

The other handlebar, the control handlebar SL, also connects the fixed frame 12 with the casement 14. However, it is now a sliding hinge 36 between control arms SL and casement 14 or extension arm 34 are provided. This sliding hinge 36 is shown in FIG Embodiment from one to the longitudinal direction of the Extension arm 34 parallel elongated hole 34b of the extension arm 34 formed and a guide member 38 at the corresponding end of the control link SL, for example in the form of a Control link SL riveted head pin.

In the exemplary embodiment according to FIGS. 1-4, this is on the fixed frame side End of the control link SL with which the fixed frame side Pivot bearing part of the corner bracket forming the fitting 28 via a swivel 40, e.g. B. in the form of a rivet bolt, connected. Opposite a longitudinal median plane 42 of the Corner angle 28 is the hinge 40 in the direction of Fixed frame visible surface 22 shifted. In the same sense is also the swivel joint 32 defining the axis of rotation DA shifted, that is, with respect to a longitudinal center line 44 of the Extension arm 34 in the direction of the flap 21 (each perpendicular to the corresponding frame level).

So that both handlebars FL and SL with closed wing despite mutual crossing to save space on top of each other can both lie with laterally open recesses 48, 49 provided that interlock when the wing is closed with a corresponding Z-shaped bend in both Handlebars FL and SL in this area, as is known from the DE 38 29 053 A1 is known.

Both handlebars FL and SL are connected to each other via a sliding swivel joint 50 coupled, consisting of one Elongated hole 52 in the control arm FL and one in the elongated hole forth movable guide member 54, which has a Rivet hinge pin 56 rotatably attached to the control arm SL is.

The elongated hole 52 in the guide link FL runs in the longitudinal direction of the handlebar. It has trapezoidal outline, with the shorter baseline 52a of the two parallel to each other Baseline 52a and 52b with the wing closed Fixed frame visible surface 22 is closer than that longer baseline 52b. The guide part 54 (also sliding block also has a trapezoidal outline same trapezoidal height and same orientation of the trapezoidal side lines, to in both stop positions up to to be able to penetrate the trapezoid corners of slot 52 (see also Fig. 3, in the section to illustrate the structure of the control arm SL broken out above the guide part 54 is shown). You can also see that there square outline of one always over the edge of the elongated hole 52 projecting head 56a of the rivet joint pin 56. In this way, the two handlebars FL and SL are reliable held together at the intersection.

The trapezoidal shape ensures that there is no danger there is that the guide member 54 during operation twisted in slot 52 and thereby increased friction and Causes wear. On the other hand, there is a strong reduced surface loading of the oblong hole flanks, since under the operating load the guide part 54 with its longer trapezoidal side on the corresponding groove flank (longer baseline 52b). this applies at least when the sash is not fully open (see Fig. 3), in which the guide member 38 at the corresponding end of the Control link SL from the upper end of the elongated hole in FIG. 2 34b is removed and therefore no tilting moments of the casement 14 about a tilt axis perpendicular to the frame plane can record and forward via the control link SL. These forces are therefore exerted solely on the swivel 32 transfer the control arm FL, which then tries to 2 around the swivel joint 26 in the clockwise direction pivot. Here it is guided by the guide part 54 hindered within the elongated hole 52 since this is accordingly to the upper flank of the elongated hole 52 in FIG. 2 presses and then the corresponding wing forces over the section of the control link SL following below into the swivel joint 40 and thus into the fixed frame 12 forwards.

2 and 3 show that with the wing wide open by the respective position of the guide part 54 with rivet joint bolts 56 defined current crossing axis KA in Longitudinal direction of the control arm FL only slightly is removed 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 insignificant in the critical wing position greater than the effective length of the control handlebar SL attacking lever arm (distance pivot bearing 26 to the axis KA). That on the sliding hinge 50 essentially forces acting transversely to its slot 50, which then over the upper section of the control link SL in the swivel joint 40 forwarded are therefore only insignificant larger than that of the sash 14 in the pivot 32 with Axis of rotation DA initiated forces.

If the sash is closed further (see Fig. 4), it moves the guide part 54 further in the direction of that in FIG. 4 left end of slot 52. At the same time, the between the control arm FL and the control arm SL included angles continue to decrease, so that increasingly from the tipping moment of the wing resulting on the Pivot bearing 32 with forces acting on the axis of rotation DA (arrow F in Fig. 4) due to the corresponding decomposition of forces immediately be introduced into the control arm FL for Introduction into the fixed frame via the swivel joint 26. Accordingly, the displacement rotary joint 50 is relieved, despite increasing the difference between the two mentioned lever lengths.

Overall, there are significantly reduced handlebar lengths of the two handlebars FL and SL, for which the one in the center Crossing point of the two handlebars FL and SL arranged Sliding swivel with comparatively short displacement and on the other hand by eliminating one Elongated holes in corner bracket 28 made it possible to relocate two pivot bearings 32 and 40 with the wing closed in Direction to wing flap 21.

The structure of the lower swivel bearing in the form of the swivel-tilt bearing 60 corresponds in relation to the handlebar construction largely that described above. The leader FL is with the control arm SL via the sliding swivel joint 50 'coupled, the trapezoidal shape of the elongated hole 52 'is reversed, i.e. with the longer baseline 52b the side of the fixed frame visible surface 22 Elongated holes (with the wing closed). This carries the reverse force direction in the lower pivot bearing bill. In Fig. 6 shows a corresponding force arrow F '; the outline of what is not visible in this section lower, horizontal frame spar 18a is with dashed lines Outline indicated.

The guide link is as in the first embodiment via the pivot bearing 26 with a fixed frame-side pivot bearing part coupled in the form of a bracket 28 '. The Fitting angle 28 'is in a corresponding corner of the Folding space 16 used and rigid with the fixed frame 12 connected, in particular screwed (screws 30 '). The vertically projecting leg 28b 'carries on his upper end a support rod 62 which with its upper, not shown end to the vertical beam 18b of the Sash frame 14 engages to absorb the sash weight when opening and tilting; to DE 38 29 053 A1 is referred.

The control arm SL is now with the bracket angle 28 ' coupled via a further displacement rotary joint 64, from an elongated hole 66 in the horizontal leg 28a 'and one Guide part (sliding block) 68 within the elongated hole 66, which with the help of a pivot pin 70 at the upper end of the Control arm is rotatably attached. The square one in outline Bolt head 70a is again in all operating positions over the two slotted edges to the Cohesion between control arm SL and horizontal leg 28a ensure. An offset of the horizontal leg 28a 'in the region of the elongated hole 66 secures the necessary 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 a trapezoidal orientation corresponding to that of the sliding swivel 50 according to Figs. 1-4, i.e. with each shorter baseline 66a on the fixed frame visible surface 22 facing side of the elongated hole because of the wing tilting moment (Force arrow F ') the control arm SL under pressure and thus the guide part 68 with its longer base line against the baseline 66b.

The slot 66 is with respect to a longitudinal median plane of the Corner angle 28 in the direction of the fixed frame visible surface 22 relocated to for the displacement of the axis of rotation DA in front of the Fixed frame visible surface 22 when opening the sash to create favorable movement conditions. This matches with thus the corresponding displacement of the swivel joint 40 in the first embodiment according to Fig.1-4.

The type of coupling of the other handlebar ends from Guide link and control link with the sash 14 basically corresponds to that of the first embodiment with a pivot bearing defining the axis of rotation DA 32 'between the control arm and sash 14 and one Sliding pivot 50 'between the control arm SL and the sash 14.

In the possible application of a turn-tilt fitting must however, the lower pivot bearing is designed as a turn-tilt bearing 60 his. Pivot bearing 32 'and sliding swivel 50' must also have a tilting movement around a horizontal one Allow tilt axis KA.

This can be achieved in that the sliding swivel 36 'and the swivel 32' each with one projecting part 36'a or 32'a projecting upwards is provided, which in the corresponding slot-like Recess 34 'or receiving opening 33 open at the bottom a fitting part on the casement side are used with a corresponding tilt play when the lower ones are in parallel Frame bars 18a and 20a. The fitting part is shown in the Embodiment of a die casting process manufactured bearing rail 71 formed with the Sash frame 14 rigidly connected, in particular screwed is (screw 72). The almost cylindrical projection part 36'a bears during the opening movement of the wing accordingly elongated, downward open recess 34 '; in that shown in FIG The projection part is in the tilt-ready position 36'a in the region of a side window 71a of the corner bearing rail 71 to more or when opening the wing penetrate less far into the window 71a.

The projection part 32'a forming the actual corner bearing on the other hand, is tapered towards the top to open when tilting not with the cylindrical inner peripheral wall of the To collide receiving opening 33.

The sequence of movements when opening and closing the rotary Wing is shown in Figs. 6-8. At maximum revolving open Is the distance between the through the wing current crossing point of both handlebars FL and SL defined Crossing axis KA and the axis of rotation DA minimal, so that practically no power boost occurs. To despite the Longitudinal center plane 44 of the corner bearing rail 71 symmetrical Arrangement of the projection part 36'a and 32'a the desired maximum opening angle of at least 90 ° with continue to obtain short lengths of the FL and SL handlebars if necessary, low power amplification with the maximum open Window, the fixed frame end of the Control handlebars, as described, a relatively small linear movement parallel to the fixed frame level authority.

This is when the sash is fully opened Guide part 68 at the left end of the slot in the figures 66. If the wing is then turned slightly (to the position gem. Fig. 7), the guide part 68 moves to the first right end of slot 66 (due to the different Initial slope of the two elongated holes 66 and 52 ' relative to the longitudinal direction of the control link SL). following then also moves the guide member 54 'of the sliding rotary joint 50 'to the left in the figures until the end of Elongated holes 52 'with the wing closed.

Claims (10)

1. A pivot fitting or pivot-and-tilt fitting for windows, doors or the like, having a fixed frame (12) and a casement frame (14), said casement frame being mounted on the fixed frame (12) tiltably about a vertical pivot axis (DA) and, in case of a pivot-and-tilt fitting, mounted tiltably about a horizontal tilt axis (KA), said fitting comprising

   a lower pivot bearing to be mounted concealed in the groove, said bearing connecting the fixed frame (12) in the region of a lower comer thereof with the casement frame (14), and namely, in case of a pivot-and tilt fitting, in the form of a pivot-and-tilt bearing (60),

   an upper pivot bearing (10) to be mounted concealed in the groove, connecting said fixed frame (12) in the region of an upper comer thereof with the casement frame in case of a pivot fitting, and in case of a pivot-and-tilt fitting with a hook-out arm (34) coupled to said casement frame (14),

   wherein the two pivot bearings, each, comprise at least two rods (FL,SL) for displacing, when pivot-opening said casement frame (14), said pivot axis (DA) in a direction perpendicular to the frame plane of the fixed frame (12),
   wherein said two rods (FL, SL) of each pivot bearing (10) cross each other and are movably connected with each other in the crossing point via a first link,
   wherein one of said two rods, the guiding rod (FL), is connected via a respective hinge (26, 32) with a pivot bearing part of the fixed frame, e.g. angle bracket (28, 28'), and with a pivot bearing part of the casement frame, e.g.comer bearing rail (71), or with said hook-out arm (34), and
   wherein said other rod, the steering rod (SL) is at least pivotably connected via a second link with the pivot bearing part, e.g. angle bracket (28, 28'), of the fixed frame, and is connected with said pivot bearing part of the casement frame, e.g. comer bearing rail (70), or with said hook-out arm (34) via a sliding hinge (36, 36'), with a sliding direction substantially parallel to the longitudinal direction of the branch of the casement frame (18a) supporting the pivot bearing part of the casement frame or parallel to the longitudinal direction of said hook-out arm (34),
   characterised in that said first link is a sliding hinge (50, 50') having a sliding direction substantially parallel to the longitiudinal direction of said guiding rod (FL),
   that said first link comprises a first elongated hole (52) in said guiding rod (FL) as well as a first guiding part (54, 54') pivotably mounted on said steering rod (SL) and movable to and fro in said first elongated hole, and
   that said first elongated hole (52, 52') and said first guiding part (54, 54') have a trapezoid contour with substantially same trapezoid height and with base lines substantially parallel to the longitudinal direction of the guiding rod (FL), whereby the respective shorter base line (52a), when the window, door or the like is closed, lies closer to the visible surface of the fixed frame (22), lying opposite the overlapping edge of the wing (21) of the casement frame, than the respective longer base line (52b) in the case of the upper pivot bearing and vice versa in the case of the lower pivot bearing.
2. The fitting according to claim 1, characterised in that said hinge (32) is located between said guiding rod (FL) and said pivot bearing part of said guiding rod (FL) on the side of the casement frame or said hook-out arm (34), in an offset manner with respect to a longitudinal center line (44) of the pivot bearing part on the side of the casement frame or to said hook-out arm (34), in direction toward an overlapping edge of the wing (21) of said casement frame (14).
3. The fitting according to any one of the preceding claims, characterised in that the second link is a hinge (40).
4. The fitting according to claim 3, characterised in that the hinge (40) forming said second link is located in an offset manner with respect to a longitudinal center line (42) of said pivot bearing part on the casement frame, e.g. angle bracket (28), in direction of a or the visible surface of the window frame (22) lying opposite said overlapping edge of the wing (21) of said casement frame (14).
5. The fitting according to claim 1 or 2, characterised in that said second link is a sliding hinge (64) having a sliding direction substantially parallel to the longitudinal direction of the branch (20a) of the fixed frame supporting the pivot bearing part of the fixed frame, e.g. angle bracket (28').
6. The fitting according to claim 5, characterised in that said second link comprises a second elongated hole (66) in the pivot bearing part of the fixed frame, e.g. angle bracket (28'), as well as a guiding member (68) pivotably mounted on said steering rod (SL) and movable to and fro in said second elongated hole.
7. A pivot fitting or pivot-and-tilt fitting for windows, doors or the like, having a fixed frame (12) and a casement frame (14), said casement frame being mounted on the fixed frame (12) tiltably about a vertical pivot axis (DA) and, in case of a pivot-and-tilt fitting, mounted tiltably about a horizontal tilt axis (KA), particularly according any one of claims 1, 2, 5 and 6, comprising

   a lower pivot bearing to be mounted concealed in the groove, said bearing connecting the fixed frame (12) in the region of a lower comer thereof with the casement frame (14), and namely, in case of a pivot-and tilt fitting, in the form of a pivot-and-tilt bearing (60),

   an upper pivot bearing (10) to be mounted concealed in the groove, connecting said fixed frame (12) in the region of an upper corner thereof with the casement frame in case of a pivot fitting, and in case of a pivot-and-tilt fitting with a hook-out arm (34) coupled to said casement frame (14),

   wherein the two pivot bearings each comprise at least two rods (FL,SL) for displacing, when pivot-opening said casement frame (14), said pivot axis (DA) in a direction perpendicular to the frame plane of the fixed frame (12),
   wherein said two rods (FL,SL) of each pivot bearing (10) cross each other and are movably connected with each other via a first link in the crossing point,
   wherein one of said two rods, the guiding rod (FL), is connected via a respective hinge (26, 32), each, with a pivot bearing part of the fixed frame, e.g. angle bracket (28, 28'), and with a pivot bearing part of the casement frame, e.g.corner bearing rail (71), or with said hook-out arm (34), and
   wherein said other rod, the steering rod (SL), is connected via a second link with the pivot bearing part, e.g. angle bracket (28, 28') which is formed by a sliding hinge (64) comprising an elongated hole (66) in said pivot bearing, e.g. angle bracket (28'), predetermining the sliding direction and extending substantially parallel to the longitudinal direction of the branch (20a) of the fixed frame supporting said pivot bearing, e.g. angle bracket (28'), of said fixed frame, as well as a second guide member (68) which is movable to and fro in said elongated hole (66) and is pivotably mounted on said steering rod (SL), and wherein said steering rod (SL) is connected with said pivot bearing of the fixed frame, e.g. comer bearing rail (70), or with said hook-out arm (34), via a sliding hinge (36, 36'), having a sliding direction substantially parallel to the longitudinal direction of the branch (18a) of the casement frame, supporting the pivot bearing part of the casement frame, or parallel to the longitudinal direction of said hook-out arm (34),
   characterised in that said first link is a sliding hinge (50, 50') having a sliding direction substantially parallel to the longitudinal direction of said guiding rod (FL), and
   that said elongated hole (66) and said second guiding part (68) have a trapezoid contour with substantially same trapezoid heights and with base lines (66a,66b) substantially parallel to the longitudinal direction of said pivot bearing, e.g. angle bracket (28'), whereby the respective shorter base line (66a), in case of a lower pivot bearing (60), lies closer to the visible surface of the fixed frame (22) opposite the overlapping edge of the wing (21) of the casement frame than the respective longer base line (66b) and vice versa in the case of an upper pivot bearing.
8. The fitting according to any of the preceding claims, characterised in that said two pivot bearings, each, only comprise two rods (FL,SL).
9. A window or door having a pivot fitting according to any of the preceding claims.
10. A window or door having a pivot-and-tilt fitting according to any of claims 1 to 8.

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