EP0342420B1 - Locking device at a sliding folding door or window - Google Patents

Abstract

When the frames of the wings (3, 4, 5) of a sliding folding element (2), for example a sliding folding door, are produced from plastic sections or from thin aluminium sections, these are sensitive to distortion even when they are equipped with reinforcement, because the latter cannot extend right into the frame corner. To ensure that the load on the second wing (4) and further wings during the opening of the first wing is reduced to a minimum, the second wing (4) can open only when the first wing (3) is opened at approximately 180 DEG and retained on the second wing (4) by means of a first locking device (17). Released particularly via the first wing (1) is a second locking device (18), by means of which the second wing (4) is fixed relative to a stationary frame (1). By means of a third locking device (19), the folded-together position of the first and second wings can be secured additionally in the initial opening movement of the second wing (4). <IMAGE>

Description

The invention relates to a door or a window according to the preamble of patent claim 1. Such a gate or such a window is known from DE-C 5 83 967.

The fixed frame as well as the frames of the individual door or window sashes are constructed from frame bars. For this you can use solid bars or profiled bars made of plastic or aluminum. Plastic profiles are usually provided with a stiffening profile, which gives the strut in question the necessary strength that it would not have with the usual wall thicknesses without such a stiffening profile. The stiffening profiles are made of steel or aluminum, for example. The bars are welded together at the corners of the frame. Because of this operation, the stiffening profiles cannot be led into the corner of the frame. The consequence of this is that the frames can essentially only absorb loads in the pane plane.

In the case of sashes of sliding - folding doors or sliding - folding windows, however, loads also run transversely to the frame level. If the last leaf of the arrangement is freely rotatable in a sliding folding door or window and it is at an angle when folding the element or, for example, approximately perpendicular to the penultimate leaf, then the weight of this first leaf tries to twist the subsequent frame. The glass pane itself can stiffen the wing essentially only in the plane of the pane but not perpendicularly to it. As I said, the corners themselves are not stiff enough and twist somewhat under this load. As a result, the free sash lowers and it then grazes down in the rebate or rail area.

The aforementioned DE - C 5 83 967 is not a sliding folding window. Instead, two wings are rotatably connected to each other in the known window, so that an inner wing can be rotated by 180 ° and placed in front of the outer wing. The outer wing is connected to the frame in the manner of a rotating wing.

In order to prevent the wing hinged to the fixed frame from being loaded vertically or at an angle to its plane by the wing hinged to it and thus being subjected to twisting, a releasable first latching device consisting of a button and a spring is used. which is provided on each leg of two collapsible wings. The first locking device thus holds the two wings together. Furthermore, in the known window, the package should only be able to be turned on the frame when the first sash has been placed on the second sash by 180. For this purpose, an actuating handle of a base closure located on the outermost wings is arranged in such a way that it is covered by the respectively assigned, closed middle wing and is only accessible after the relevant middle wing has been completely opened so that the outer wing can be opened with the actuating handle. This actuating handle then simultaneously forms a safeguard against unintentional turning back of the inner wing. In addition, an automatically acting locking hook is then provided, which only releases the locking bar of the base lock when the wing package is turned back to close and is in contact with the frame.

With fittings for sliding folding doors or sliding folding windows, it is difficult to attach a lock to the sash, which is connected to the frame by means of rollers or guides. Furthermore, in the known window arrangement, the function of the handle moving the locking rod of the base lock is not automatic.

In the case of modern door or window frames, for example made of plastic or aluminum profiles, it is also necessary to combine the various functions in one fitting part in the sense of efficient storage and inexpensive installation.

It is therefore the object of the invention to provide a generic door or a generic window with a locking device suitable for a sliding folding door or sliding folding window of a modern design, in particular with a plastic or aluminum profile frame, in order to avoid twisting of the casement frames when the first casement is open to create, which enables an automatic function and can be realized in a fitting part.

To achieve this object, it is proposed according to the invention that the door or window is designed in accordance with the preamble of claim 1 in accordance with the characterizing part of this claim.

The second wing is locked against the fixed frame via the second latching device. According to the invention, this locking is released by the opening movement of the first wing, specifically at the end of the 180 ° opening movement. This means that the rotary opening end movement of the first wing is used in two ways, namely for the mutual locking of the first and second wing on the one hand and for unlocking the second wing from the fixed frame on the other hand. If now on this If the first and second sashes form a package that can be rotated and moved relative to the fixed frame, you can also open the third sash together with the package of the first and second sashes after unlocking the third sash. The connection pivot bearing between adjacent sashes can be mounted alternately on the inside and the outside of the frame, as a result of which the door can be folded and moved as a package to the wall-side vertical bar of the fixed frame.

If you want to close this sliding - folding door or sliding - folding window again, you first bring the third leaf and the second leaf into their closed position in relation to the fixed frame, in which they are extended from each other, in contrast to the open block position, where they , relatively speaking, are arranged parallel to each other. If the third wing is secured against the fixed frame, for example locked by a known device such as locking bars or the like, the second wing is locked against the fixed frame with the aid of the second latching device. If this is to be done by the initial closing and rotating movement of the first leaf, then when the second leaf is in the closed position, the first leaf simply has to be turned in the closing direction, which of course does not happen without releasing the first locking device.

It is undoubtedly advantageous if the closing and turning movement of the first leaf causes the second latching device to latch, but this is not absolutely necessary. The latching can also be brought about separately by hand and / or coupled with an unlatching of the first latching device.

Because the second latching device can be actuated in the disengaging direction by the first wing, the opening-end movement of the 180 ° opening rotary movement being at the same time a latching-actuating movement of the second latching device, the second wing is closed as long as the first wing is open or only so far and struck back that it is at an acute angle to the second wing, fixed against the fixed frame. If, however, the first leaf is opened by approx. 180 and is thus roughly parallel to the second leaf, this leads to the second locking device being actuated in the disengaging direction. This means that the second wing can only be opened when the first wing is directly in front of it. The resulting torsional forces have been reduced to a minimum because the effective lever arm for the weight of the first wing has now reached its lowest value. When opening the second and the other wings, the first wing, often referred to as the free wing, must maintain this parallel position to the second wing. This is achieved with the help of the first locking device. On the other hand, in this configuration, the locking of the second latching device must or must be effected in a force-controlled manner when the second leaf is (again) in its closed position and the first leaf is rotated in the closing direction. Closing direction is rotated.

This is achieved in an advantageous manner in that the second latching device has an actuator which projects into the movement path of the first wing and is coupled to the second latching member. In the opening and final movement of the first leaf, this acts on the actuator and unlocks the second locking device. Conversely, the first leaf releases the actuator again at the start of its closing rotary movement. As a result, the second latching device can go back into the latching position or be brought into it.

A further embodiment of the invention consists in the fact that the first latching element is designed in the manner of a cutter. Snappers automatically step into the locked position when their spring-loaded locking element is in front of the locking fixture. The engagement and disengagement can take place solely by using the rotary movement of the first wing relative to the second. Of course, the first latching device can consist of several snappers or the like.

Another embodiment of the invention is characterized in that the first locking member is slidably mounted in a control housing of the second wing and the first locking receptacle is located on the first wing. The first latching element does not necessarily have to be a ball, even in the case of training in the manner of a snapper, but rather a spring-loaded latching element mounted in a sliding manner can also be used. Furthermore, appropriate slants should be used to engage and disengage with reasonable effort. On the other hand, however, this first latching device should also hold the two wings together well. The engagement and disengagement movement of the first catch element expediently runs approximately horizontally or vertically and parallel to the wing plane.

A particularly preferred embodiment of the invention is characterized by a third latching device consisting of a third latching member and a third latching receptacle for connecting the first wing opened by approximately 180 to the second wing. This can be an additional latching device that supports the first latching device. In the case of two locking devices for fixing The first wing opened by 180 ° opposite the second wing does not necessarily have to both lock at the same time. In the exemplary embodiment, this is also not provided.

In this respect, for example, the first latching device can be used to hold the first and second sashes together and only bring about the additional latching at a later point in time and with a corresponding predetermined requirement.

In this context, an important variant of the invention provides that the third locking device can be controlled by an initial opening movement of the second leaf in the locking direction and the unlocked position of the third locking device is assigned to the closed second leaf. The above-mentioned requirement for the third latching device to snap in here is therefore a relatively slight opening movement of the second leaf. On the other hand, when the second wing is opened, the first must be securely fixed to it, and this secures the third latching device better than a claw-like first latching device. On the other hand, however, it is not absolutely necessary for the third locking device to act when the second wing is locked, even with a snapper or the like.

In a further development of the invention, it is proposed that the third latching device has an actuator coupled to the third latching member, which protrudes beyond the second wing against the fixed frame and assumes its disengaged switch position when the second wing is closed. So if you close the second wing, this results in the third latching element hitting the fixed frame, and when the actuator is pressed in, the third latching member - from its latching position - goes into a disengaged switchover position in which it releases the first wing , about.

A further embodiment of the invention consists in the fact that the actuator for the second latching element and / or the actuator for the third latching element is a spring-loaded pusher, each load spring loading the associated latching element in the latching direction, at least when the pusher is pressed in . This means that the second and / or third latching element is adjusted in the latching direction by means of the loading spring after its pusher has been lifted from its abutting surface.

Another preferred embodiment of the invention is characterized in that the disengaging movement of the second latching member and its associated pusher and / or the third latching member and its associated pusher are approximately perpendicular to one another and each latching member is connected to its pusher via a coupling device. The associated adjustment movement of the latching element takes place via the latter when the pusher is adjusted. A parallel disengaging movement of the second and third latching members is also conceivable, in particular in the vertical direction, the disengaging movements expediently running in opposite directions.

The or each coupling device advantageously consists of an oblique slot and a bolt or the like which engages therein, the oblique slot in particular being located on the second or third latching element and the bolt or the like in each case on the associated pusher. Here, using the principle of the inclined plane, a shifting movement is converted into a transverse, preferably perpendicular, displacement movement. Instead, it is also possible to use other known devices for this reversal of movement, for example control via tabs.

In a further development of the invention, the second and the third latching device have a common control housing or the like connected to the second wing. The second catch is expediently arranged on the upper cross member of the fixed frame and the control housing or the like on the upper cross member of the second wing, in particular in the region of the upper corner assigned to the third wing. As a result, when the first and second wings are folded together, the first is held in the area of its upper corner on the closing side.

Another variant of the invention is characterized in that the second latching receptacle is formed by an upper guide rail or running rail of the fixed frame. Instead, a correspondingly protruding, downward-pointing profile web of the upper crossbar of the fixed frame can be used for locking purposes. In addition, the sashes folded into a package can be slidably guided over a lower carriage on a running rail and a guide roller in the guide rail on the frame. However, the arrangement can also be reversed, i. that is, the supporting roller can be attached at the top and the guide roller at the bottom.

The third latching element is advantageously displaceable approximately in the horizontal or vertical direction and thus makes the same displacement movement as the first latching element. This enables a further embodiment of the invention, which consists in the fact that the first and third snap-in receptacles are formed by a common component or are attached to it.

A particularly preferred variant of the invention results from claim 21. Through it, the entire locking device can be used for right and left stop.

• Fig. 1: eine Vorderansicht einer Schiebe-Falttür mit drei Flügeln,
• Fig. 2: eine Draufsicht auf die Fig. 1 bei geschlossenen Flügeln,
• Fig. 3: eine der Fig. 2 entsprechende Darstellung mit geöffneten und zusam - mengefalteten Flügeln,
• Fig. 4: in vergrößertem Maßstab einen Schnitt an der Stelle IV- IV der Fig. 1 bei geschlossenem zweiten Flügel,
• Fig. 5: eine vergleichbare Darstellung bei um 180 geöffnetem ersten und gering - fügig geöffnetem zweiten Flügel,
• Fig. 6: eine Draufsicht auf Fig. 4 ohne den festen Rahmen,
• Fig. 7: eine dementsprechende Draufsicht auf Fig. 5.

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

• 1: a front view of a sliding folding door with three wings,
• 2: a top view of FIG. 1 with closed wings,
• 3: a representation corresponding to FIG. 2 with the wings opened and folded together,
• 4: on an enlarged scale, a section at point IV-IV of FIG. 1 with the second wing closed,
• 5: a comparable representation with the first wing opened by 180 and the second wing slightly opened,
• 6: a plan view of FIG. 4 without the fixed frame,
• FIG. 7: a corresponding top view of FIG. 5.

A common fixed frame of a sliding folding element 2 consisting of a first wing 3, a second wing 4 and a third wing 5 is designated by 1. This sliding-folding element is articulated with the aid of, for example, three rotating bands 6 arranged one above the other on the fixed frame 1 or on its vertical side 7 on the band side. Furthermore, the first wing 3 is pivotally connected to the second wing 4 via at least two, but preferably also three rotary bearings 8, while the second wing 4 and the third wing 5 are rotatably connected via further rotary bearings 9. Advantageously, the immediately successive hinge groups are mounted alternately on the outside and on the inside of the sliding folding element 2. In this way it is possible to push the folded package towards the vertical spar on the hinge side, as shown in FIG. 3 of the drawing. Any other known arrangement of the individual wings and also a different number of wings are possible.

The sliding element, for example a sliding folding door, is displaceably mounted on a lower running rail 11 in the sense of the double arrow 12 via a lower carriage 10. In addition, a guide roller 13 or the like is provided at the upper end of the sliding folding element 2, which is guided in a guide rail 14. The arrangement can also be reversed, i.e. the weight can also be taken up.

Via the operating handle 15 attached to the first wing 3, a closure, not shown, of this wing can be actuated, with the aid of which it is locked against the fixed frame 1. Another operating handle 16 located on the third frame 5 is used to actuate a closure, not shown in more detail, by means of which the wings 4 and 5 can be pressed individually against the fixed frame, for example locking bars which move upwards and lock it into the fixed frame 1 below.

The locking device comprises at least two, but preferably three latching devices 17, 18 and 19 in the exemplary embodiment. Here, the first latching device 17 consists of a first latching member 20 and a first latching receptacle 21. The second latching device 18 comprises a second latching member 22 and one second latching receptacle 23. The third latching device 19 consists of the third latching member 24 and the third latching holder 25. According to FIG. 7, the first latching holder 21 and the third latching holder 25 are designed as a joint latching holder and are consequently attached to a common component 26. This is attached to the first wing 3 such that it points towards the latter when the first and second wings are folded. Conversely, on the second wing 4 there is a control housing 27 which, when the first and second wings are folded, protrudes against the first wing and comes to lie directly next to the common component 26. 1 shows that the control housing 27 is preferably attached to the upper corner of the second wing 4 which is assigned to the third wing 5. As a result, the common component 26 is close to the upper flight on the closing side - leak of the first wing 3.

The first latching device 17 is designed in the manner of a cutter. Its spring-loaded latching element 20 can be displaced in the horizontal direction parallel to the wing plane and is provided with a corresponding entry and exit slope. When the first wing 3 has been opened by approximately 180 °, the outer bevel of a nose 28, which delimits the latching receptacles 21 and 25 at this point, strikes the first latching member 20. It occurs against the resistance of a load spring into the interior of the control housing 27 and, when the wings 3 and 4 are in parallel, into the first latching receptacle 21.

When the second wing 4 is closed, the third latching device 19 is in a disengaged or ineffective position. From Fig. 6 it can be seen that the third locking member 24 is completely retracted into the interior of the control housing 27. The third latching element 24 can be moved outwards via a pusher 29 in the direction of the arrow 30 when the pusher 29 is in Arrow direction 31 is moved. The latter is the case according to FIG. 5 when the second wing 4 is opened. In this case, the pusher 29 pushed into the control housing 27 against the resistance of a load spring 33 when the wing 4 is closed is released, and it can move relative to the control housing 27 in the direction of arrow 31. This displacement movement is transmitted via a coupling device 35 (FIG. 7) in the sense that the third locking member 24 carries out a displacement movement in the direction of arrow 30 and thereby engages behind the locking receptacle 25 of the component 26, whereby the wings 3 and 4 are coupled together.

The coupling device consists of an oblique slot 36, which in particular extends below 45 to the sash level, and a bolt 37 which is displaceably guided therein. The oblique slot is located on the third latching element 24, and consequently the bolt 37 is held on the lever 29. When the second sash 4 is closed, the push-in lever 29 pushed inward rests on the upper cross member 34 of the fixed frame 1, i. H. it is pressed by the closing movement of the second wing 4, which leads to the third latching device 19 being disengaged. In the exemplary embodiment, the pusher 29 bears directly or indirectly on one leg of the guide rail 14.

The second locking device 18 is also equipped with a pusher, which is designated 38. It can be pushed in in the direction of arrow 40 against the resistance of a load spring 39. Its displacement movement is transmitted to the second locking member 22 via a coupling device 41. The coupling device 41 consists of an oblique slot 42, which is preferably located on the second latching member 22 and a bolt 43 of the pusher 38 that can be displaced therein Shift locking member 24 or 22 in the locking position. From Fig. 4 it can be seen that the second locking member 22 is in its locking position when the handle 38 is not loaded. The latter is pressed through the first wing 3 when it is approximately in a 180 ° open position (FIG. 7). This is because the surface 44 of the first wing 3 strikes the pusher 38. This means that the second wing 4 can only be opened when the first wing 3 has assumed a nearly parallel position to the second wing 4, being fixed with respect to the second wing 4 by means of the first latching device 17.

In the exemplary embodiment, both the fixed frame 1 and the wings 2, 4 and 5 consist of profile bars, preferably plastic profile bars, the cross-sectional shapes of which are designed in accordance with the drawing. This also shows that a stiffening profile 45, for example in the form of a rectangular tube, is inserted into a chamber of the profile bars of the fixed frame 1. A reinforcing profile 46 is inserted in a corresponding chamber of the profile bars of wings 3, 4 and 5. However, the stiffening profiles, especially in the case of plastic profiles, do not reach into the wing corners because they would hinder the connection there, for example by ultrasonic welding.

Claims (15)

1. A door or window with a fixed frame (1) and at least two leaves (3, 4, 5), at least one leaf being mounted on its neighbour leaf and rotatable through about 180°, both leaves, when the first leaf (3) is in the opened-out position, being capable of being coupled by a releasable catch device (17) consisting of a first catch member (20) and a first catch housing (21), the first catch housing (21) being disposed on the first leaf (3) and the first catch member (20) being disposed on the second leaf (4) or vice versa, the first catch arrange - ment (17) being capable of being engaged or controlled by the extreme 180 movement of the first leaf (3) and with a second catch arrangement (18) consisting of a second catch member (22) and a second catch housing (23), the second catch member (22) being disposed on the second leaf (4) while the second catch arrangement (18) can be controlled by an opening movement of the leaf, characterised in that the door is constructed as a sliding - folding door or the window is constructed as a sliding - folding window having at least three leaves, the second catch arrange - ment (18) being capable of being controlled by the opening movement of the first leaf (3), the 180 open position of the first leaf (3) being associated substantially with the disengaged position of the second catch arrangement (18), in that the extreme opening movement of the 180" rotary opening movement of the first leaf (3) which actuates the second catch arrangement being at the same time a disengagement actuating movement of the sec - ond catch arrangement (18) and in that the second catch housing (23) is disposed on the fixed frame (1).

2. A device according to Claim 1, characterised in that the second catch arrangement (18) has, projecting into the path of movement of the first leaf (3), an actuator (38) which is coupled to the second catch member (22).

3. A device according to Claim 1 or 2, characterised in that the first catch member (20) is constructed in the manner of a slip hook and is slidably mounted in a control housing (27) of the second leaf (4), the first catch housing (21) being disposed on the first leaf (3).

4. A device according to Claim 3, characterised in that a horizontal or vertical engagement and disengagement movement of the first catch member (20) extending substantially parallel with the leaf plane.

5. A device according to at least one of the preceding Claims, characterised by a third catch arrangement (19) consisting of a third catch member (24) and a third catch housing (25), for the snap-action coupling to the sec - ond leaf (4) of the first leaf (3) which has been opened by about 180 ° .

6. A device according to Claim 5, characterised in that the third catch arrangement (19) can be controlled by an initial opening movement of the second leaf (4) in the locking direction while the closed second leaf (4) corresponds to the unlocked position of the third catch arrangement (19) and has, coupled to the third catch member (24) an actuator (29) which projects beyond the second leaf (4) and to - wards the fixed frame (1), assuming its disengaging switch-over position when the sec - ond leaf (4) is closed.

7. A device according to at least one of Claims 2 to 6, characterised in that the actuator (38) for the second catch member (22) and/or the ac - tuator (29) for the third catch member (24) is one or a respective Spring-loaded push member, each biasing spring (33, 39) loading the associated catch member (24, 22) in the snap-engagement direction at least when the push member is pushed in.

8. A device according to Claim 7, characterised in that the disengagement movement (38) of the second catch member (22) and of its associated push member (38) and/or of the third catch member (24) and of its associated push member (29) are directed substantially at right-angles to each other and in that each catch member is connected to its push mem - ber via a coupling device (35, 41).

9. A device according to Claim 8, characterised in that the or each coupling device (35, 41) consists of an inclined slot (36, 42) and, en - gaging therein, a bolt (37, 43) or the like, particularly the inclined slot on the second and/or third catch member (22, 24) and the bolt or the like being in each case disposed on the associated push member (29, 38).

10. A device according to Claim 9, characterised in that the push members (29, 38) and the second and third catch members (22, 34) are displaceably mounted on one or on each control housing (288) or the like connected to the second leaf (4) and in that the second and the third catch arrangements (18, 19) have a common control housing (27) or the like con - nected to the second leaf (4).

11. A device according to Claim 10, characterised in that the second catch housing (23) is disposed on the upper transverse member (14) of the fixed frame (1) while the control housing (27) or the like is disposed on the upper transverse member of the second leaf (4), particularly in the region of the upper corner associated with the third leaf (5).

12. A device according to Claim 11, characterised in that the second catch housing (23) is formed by an upper guide rail (14) or runner of the fixed frame (1).

13. A device according to at least one of Claims 5 to 12, characterised in that the third catch member (24) is displaceable substantially at right-angles to the second catch member (22) parallel with the plane of the second leaf (4), the third catch member (24) being adapted to slide particularly in a substantially horizontal or vertical direction.

14. A device according to Claim 13, characterised in that the third catch housing (25) is disposed on the first leaf (3) and has a catch nose (28) or catch strip or the like behind which, in the engaged position, the third catch member (34) engages, the first and third catch housings (21, 25) being formed by or being provided on a common component (26).

15. A device according to at least one of Claims 5 to 14, characterised in that all catch members (20, 22, 24) are capable of being engaged and disengaged in a substantially vertical direction and parallel with one another, particularly when the first and/or third catch arrangements (17, 18, 19) are engaged, the common component (26) engages at least partially under the control housing (27).

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