EP0231498B2 - Fittings for a wing of a window, door or the like which is at least tiltable - Google Patents

Abstract

1. A fitting for an at least tiltable leaf (2) of a window, a door or the like, the top end of the leaf being connected to a rigid frame or the like via two lateral spaced-apart stays (12, 13) which are mounted to be at least rotatable at both ends, the two stays being coupled to each other by a link (28), characterised in that the link (28) connects the two leaf-side ends of the stays (12, 13) to each other and in that, at a distance from the leaf-side axes of rotation (14, 16) of the stays it is at both ends articulatingly rotatable on the stays, its pivot pins (26, 27) extending parallel with the pivot pins (14, 16) of the stays (12, 13).

Description

The invention relates to a fitting according to the preamble of claim 1. The link causes a forced parallel guidance of the assigned upper wing end, which, when the tilted wing is closed, is intended to ensure that the upper wing cross member approaches the parallel cross member of the fixed frame or the like as parallel as possible . Such positively controlled constructions are used in particular in the case of simple fittings, in which the sash is moved into the tilted position or is brought from the tilted position into the closed position after unlocking with the twist grip of the lock. If the parallel position of the above bars is not guaranteed, the upper wing corner removed from the operating handle does not run in properly or it jams in the fold. This can lead to the closure closing.

In the case of a known fitting of the type mentioned at the outset, the two extension arms are articulated on the frame side on so-called sliders, which ensure that the tilted or parallel-parked sash is pushed sideways. The two extension arms are coupled there on the frame side by connecting the two sliders. The parallelogram formed by the hinging axes of the two opening arrays on the frame side and the two pivoting axes of the handlebars on the gliders runs extremely flat in the closing-end movement of the wing. Because there must always be a certain amount of play with fittings and this also applies to the bearing points, with this known fitting shortly before reaching the closed position, perfect parallel guidance is no longer guaranteed. As a result, so-called pre-closing with this fitting, in particular with wide sashes, cannot be ruled out.

The object of the invention is therefore to develop a fitting of the type mentioned in such a way that, even with the usual tolerances, a perfect parallel guidance is guaranteed up to the closed position of the wing, but also in the opposite direction, and so-called pre-closing is prevented.

To achieve this object it is proposed according to the invention that the fitting is designed according to the preamble of claim 1 in accordance with the characterizing part of this claim. The effort is not greater with this fitting than with the known one, but the flat parallelogram can now be avoided, especially shortly before the closing end position is reached. As a result, wide sashes are also perfectly parallel in the closing position. There is therefore no pre-closing or jamming in the closing end phase. The handlebar is in this solution in front of the so-called wing overlap, but this is insignificant insofar as with such fittings the extension arms are mounted on the overlap anyway and they are normally covered by a profile that extends across the entire wing width. The latter then also covers the handlebar. Accordingly, there is no disadvantage in terms of effort or aesthetic impression in this direction.

It is also provided that the two wing-side axes of rotation of the extension arms and the axes of rotation of the handlebar form a parallelogram with approximately right angles when the wing is closed. The exact right-angled position of this imaginary parallelogram is deliberately avoided for the usual reasons, however, the short parallelogram pages run through the right-angled position during the opening movement, and then assume an inclined position towards the other side during the further opening movement. Overall, however, there is no flat parallelogram in any of the possible end positions or intermediate positions, as is known from the known state of Tecknik. Therefore, the perfect parallel guidance is maintained over the entire pivoting movement of the extension arms.

It is also provided that each extension arm is widened at its wing-side end, in particular having a lateral bearing eye for the articulation axis of the handlebar. The size of the bearing eye depends on the width of the extension arm, measured transversely to the plane of the wing, and it also depends on the thickness of the spar. The bearing eye or the widening must ensure that the handlebar-side axis comes to lie in front of the wing plane because, as said, the handlebar is in front of the inward-facing surface of the associated wing cross member.

A preferred embodiment of the invention is characterized by a latching device for each extension arm which is effective at least in the opening position of the opening arm. When the wing end in question has taken its maximum distance from the fixed frame or the like, the latching device should automatically come into operation in order to prevent the relevant extension arms from pivoting back and thus preventing the undesired closing movement. However, the latching device can also be designed in such a way that it secures both the closed position and the open position.

A preferred embodiment of the invention provides that the locking device consists of a locking element, in particular a locking lug of the opening arm, and a locking element on the wing. The locking element is expedient made of plastic, in particular striving for a resilient behavior of the locking element by appropriate choice of material and shape and dimensioning. During the pivoting movement, the latching member or the latching lug is automatically moved in the direction of the latching of the latching element and then automatically enters the latching recess of the latching element in the pivoting end position of the extension arms and possibly also in the closed position of the latter. In the case of a double-acting locking device, two locking receptacles are then available, with which the locking lug engages in the assigned pivoting end position of the deployment arm in question. The design can be such that, from a predetermined position of the assigned extension arm, on the one hand a moment in the closing direction and when opening the leaf a moment in the opening direction takes effect. The latching element can expediently be latched against the force of a loading spring and is therefore particularly effective.

Another advantageous embodiment of the invention is characterized in that two extension arms are connected at the lower wing end by means of a handlebar. The articulation of the upper and lower pairs of extension arms on the sash and frame takes place in an identical manner and this also applies to the coupling of the two ends of the extension arm on the wing side by means of an upper and a lower link. On the frame side, however, the lower extension arms are not hinged to so-called scissor gliders or comparable elements, but to a lower carriage. The sash is not only tiltable, but can also be set down in parallel and when using scissor gliders and carriages it can be pushed sideways in front of a fixed field or a second sash, in particular a so-called cleaning sash, at least in the parallel storage position. It follows that the wing can either be tilted or folded or, with the simultaneous pivoting of all four extension arms, can also be parked directly in parallel after unlocking. The same applies to closing the wing. In any case, however, it is ensured that the upper and lower wing spars are moved exactly parallel to the corresponding spars of the fixed frame or the like. In the case of a wing that is held on four raising arms and can be parked in parallel, locking is already prevented with a handlebar on only the upper raising arms. The relative rotation of the extension arms relative to their handlebars takes place via corresponding axes of rotation, which are held in a rotationally fixed manner either on the handlebars or on the extension arm. If you provide the non-rotatable connection on the handlebar, only a simple storage is required on the extension arm. The extension arms can therefore be used with a fitting with and without a handlebar. This is very useful for large series production.

• Fig. 1 Einen an einem Blendrahmen angelenkten kipp- und parallelabstellbaren sowie in der Parallelabstellage verschiebbaren Flügel vom Rauminnern her gesehen,
• Fig. 2 eine Seitenansicht von Blendrahmen und Flügel in der Kippstellung des letzteren,
• Fig. 3 eine vergleichbare Darstellung mit dem Flügel in der Parallelabstellage,
• Fig. 4 von vorne das obere Flügelende,
• Fig. 5 eine Draufsicht auf den Flügel gemäß Fig. 4.

The invention is explained below with reference to the drawing. The drawing shows an embodiment of the invention. Here represent:

• 1 seen a hinged on a frame tilt and parallel and also movable in the parallel storage wing from inside the room,
• 2 is a side view of the frame and sash in the tilted position of the latter,
• 3 shows a comparable representation with the wing in the parallel storage position,
• 4 the upper wing end from the front,
• 5 is a plan view of the wing of FIG .. 4

In a fixed frame 1, a wing 2 can be tilted (FIG. 2) and set down in parallel (FIG. 3), and in the parallel storage position is slidably mounted in front of a second wing 3. The transfer from the unlocked closed position (FIG. 1) into the tilted position and the parallel storage position is preferably carried out by pulling the handle 4, which can be rotated in a gear mechanism 5, the rotary movement serving for locking and unlocking in a known manner and being transmitted to drive rods 6 becomes. So-called corner deflections 7, which are located on all four wing corners in the exemplary embodiment, transmit the vertical movement of the drive rods 6 or drive rods to further horizontal drive rods. Bolt members are actuated via the latter, which interact with striking plates on the fixed frame.

When the user rotates the handle 4, for example from the position shown in FIG. 1, by 90 in the direction of the arrow 8, the locking members (not shown in detail) move in their striking plates or the like and one can then pull the handle Bring the sash into a tilted position in the direction of the interior and then into a parallel storage position or immediately into the latter. Accordingly, the wing placed in parallel is either first brought back into the tilted position and then into the closed position by acting on the handle 4 in the direction of arrow 9 or else directly on the wing. Turning the handle 4 against the arrow 8 then causes the locking with the fixed frame.

In order to ensure, in particular when closing the wing in the direction of arrow 9, a parallel guidance of each horizontal wing cross member relative to the associated cross member of the fixed frame, the fitting is equipped with a special one Equipped with parallel guidance. As can be seen in particular from FIG. 5 in connection with FIG. 3, in the version which can be set down in parallel, the wing is connected to the fixed frame 1 both at its upper and at its lower end by means of an upper arm pair 10 and a lower arm pair 11. Each pair consists of a first opening arm 12 on the lock side and a second opening arm 13 parallel to it. The first opening arm 12 is rotatably mounted on the wing about an axis 14 and on the fixed frame about an axis 15 parallel to it. The corresponding axes of each second extension arm 13 are designated 16 and 17. The support arms 12 and 13 are mounted on the frame on the upper cross member 18 of the fixed frame 1 on so-called scissor sliders 19 and 20, which are slidably mounted in a running rail 21 in the sense of the double arrow 22. In contrast, the lower frame arms are mounted on trolleys 23 and 24, which are slidably mounted on a lower rail 25, which extends approximately over the width of the two wings.

At a distance from each wing-side bearing axis 14 or 16 there is a bearing pin 26 or 27 running parallel thereto. It connects the relevant end of the extension arm with the associated end of a link 28. This extends parallel to the associated cross member 18 or 29. Each link 28 is in front of the cross member towards the interior of the room and runs parallel to it. The bearing bolts 26 and 27 are rotatably mounted either in the extension arm or in the handlebar. If they are secured against falling out, they can advantageously be rotatably supported in both elements.

The two axes 14 and 16 and the two axes 26 and 27 mark the corners of an imaginary parallelogram. 5, the relative position of the axis 26 to the axis 14 is indicated with the wing 2 closed with a dashed circle 38. It can be seen that the corners of the parallelogram come very close to a right angle in both rotational end positions of the extension arms. This applies in particular to the closed position of the wing. In this way, safe guidance is provided, in particular in the final phase of the transfer of the wing, from the tilted or parallel position to the closed position.

In order to create the necessary space for the axes 26 and 27, the extension arms 12 and 13 are widened at their wing-side end, in particular provided with a bearing eye 30.

In order to secure in particular the tilted or parallel position, there is a latching device 31 on each wing-side extending arm end. This comprises a latching member 32, in particular a latching lug of the raising arm 12 or 13 and a latching element 33 on the wing 2 with a latching receptacle 34 for the locking member 32. The locking element 33 is preferably made of plastic and the locking receptacle 34 is located on a resiliently evolving web 35 of the locking member 32. The conditions are selected so that the spring-elastic latching acts in the direction of the open position of the wing 2.

In a manner not shown, a latching device of this type which engages when the sash is closed can also be provided, which then causes a moment in the closing direction in the final phase.

Instead of a nose-like locking member 32 formed on the extension arm, a displaceably mounted locking member can also be provided, which can be pressed in against the resistance of a loading spring.

So that the handlebar 28 cannot move in the longitudinal direction, its two ends are each advantageously secured by a clamping screw 36 or 37 or another known element suitable for this purpose. The clamping screw can be screwed into a corresponding thread extending in the longitudinal direction of the axis 26 or 27.

Claims (6)

1. A fitting for an at least tiltable leaf (2) of a window or of a French window, which leaf can be moved into a parallel-open position and can be moved in a parallel manner, the top end of the leaf being connected to a rigid frame via two opening arms (12, 13) which are mounted so as to be at least rotatable at both ends, which are disposed at a lateral spacing, and which are coupled to each other by a link (28); and in that the fitting is mounted so as to lie both on the frame (1) and on the leaf (2) and the leaf (2) can be moved in front of the frame (1), characterised in that the link (28) connects the two leaf-side free ends of the opening arms (12, 13) to each other and is mounted in front of the plane formed by the frame-side axes (15, 17) of the opening arms (12, 13) independently of the position of the leaf (2); in that, at a distance from the leaf-side axes of rotation (14, 16) of the opening arms, the link (28) is at both ends rotatably articulated on the opening arms (12, 13); in that the axes of rotation of pivot pins (26, 27) of the link (28) extend parallel with the axes of rotation (14, 16) of the opening arms (12, 13); in that the two leaf-side axes of rotation (14, 16) of the opening arms (12, 13) and the axes of rotation of the pivot pins (26, 27) of the link (28) form a parallelogram having almost right-angles when the leaf (2) is closed; and in that each opening arm (12, 13) is widened out at its leaf-side free end and has a lateral bearing lug (30) for the hinge pin (26, 27) of the link (28).

2. A fitting according to Claim 1, characterised by, for each opening arm, a ratchet device which takes effect at least in the opened position of the opening arm (12, 13).

3. A fitting according to Claim 2, characterised in that the ratchet device (31) consists of a ratchet member (32), particularly a projection on the opening arm (12, 13), and a ratchet element (33) provided on the leaf (2).

4. A fitting according to Claim 3, characterised in that the ratchet member (32) is adapted to engage against the force of a biassing spring.

5. A fitting according to at least one of the preceding claims, characterised in that two opening arms are also provided on the lower leaf end (29) and are connected by means of a link.

6. A fitting according to at least one of the preceding claims, characterised in that each link (28) is connected at both ends by means of a fastening device, in particular a clamping screw (36, 37), to its associated pin of the bearing bolt (26, 27) such that it is immovable.

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